Merge remote-tracking branch 'origin/master' into soc-2016-uv_toolssoc-2016-uv_tools

925 files changed, 34503 insertions, 16340 deletions

diff --git a/.gitignore b/.gitignore
index 977fd9c2627..814b7661bc6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,7 +21,6 @@ Desktop.ini
 
 # commonly used paths in blender
 /blender.bin
-/user-config.py
 /BUILD_NOTES.txt
 
 # local patches
@@ -34,8 +33,6 @@ Desktop.ini
 /doc/python_api/sphinx-in/
 /doc/python_api/sphinx-out/
 /doc/python_api/rst/bmesh.ops.rst
-/doc/python_api/rst/in_menu.png
-/doc/python_api/rst/menu_id.png
-/doc/python_api/rst/op_prop.png
-/doc/python_api/rst/run_script.png
-/doc/python_api/rst/spacebar.png
+
+# in-source lib downloads
+/build_files/build_environment/downloads
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 04237812d87..1bb514b14b9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -289,7 +289,7 @@ if(WITH_X11)
 endif()
 
 if(UNIX AND NOT APPLE)
-	option(WITH_SYSTEM_GLEW "Use GLEW OpenGL wrapper library provided by the operating system" ON)
+	option(WITH_SYSTEM_GLEW "Use GLEW OpenGL wrapper library provided by the operating system" OFF)
 	option(WITH_SYSTEM_GLES "Use OpenGL ES library provided by the operating system"           ON)
 else()
 	# not an option for other OS's
@@ -334,10 +334,6 @@ option(WITH_CODEC_SNDFILE       "Enable libsndfile Support (http://www.mega-nerd
 option(WITH_ALEMBIC             "Enable Alembic Support" OFF)
 option(WITH_ALEMBIC_HDF5        "Enable Legacy Alembic Support (not officially supported)" OFF)
 
-if(APPLE)
-	option(WITH_CODEC_QUICKTIME     "Enable Quicktime Support" OFF)
-endif()
-
 # 3D format support
 # Disable opencollada when we don't have precompiled libs
 option(WITH_OPENCOLLADA   "Enable OpenCollada Support (http://www.opencollada.org)" ${_init_OPENCOLLADA})
@@ -504,7 +500,12 @@ endif()
 # Experimental support of C11 and C++11
 #
 # We default options to whatever default standard in the current compiler.
-if(CMAKE_COMPILER_IS_GNUCC AND (NOT "${CMAKE_C_COMPILER_VERSION}" VERSION_LESS "6.0") AND (NOT WITH_CXX11))
+if(APPLE)
+	set(_c11_init ON)
+	set(_cxx11_init ON)
+	set(WITH_C11 ON)
+	set(WITH_CXX11 ON)
+elseif(CMAKE_COMPILER_IS_GNUCC AND (NOT "${CMAKE_C_COMPILER_VERSION}" VERSION_LESS "6.0") AND (NOT WITH_CXX11))
 	set(_c11_init ON)
 	set(_cxx11_init ON)
 else()
@@ -738,10 +739,6 @@ if(WITH_AUDASPACE)
 	endif()
 endif()
 
-if(APPLE)
-	apple_check_quicktime()
-endif()
-
 #-----------------------------------------------------------------------------
 # Check for valid directories
 # ... a partial checkout may cause this.
@@ -1480,6 +1477,7 @@ elseif(CMAKE_C_COMPILER_ID MATCHES "MSVC")
 		"/wd4800"  # forcing value to bool 'true' or 'false'
 		# errors:
 		"/we4013"  # 'function' undefined; assuming extern returning int
+		"/we4133"  # incompatible pointer types
 		"/we4431"  # missing type specifier - int assumed
 	)
 
@@ -1759,4 +1757,3 @@ endif()
 if(0)
 	print_all_vars()
 endif()
-
diff --git a/GNUmakefile b/GNUmakefile
index ba7f89c3097..1143ac6e1f1 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -43,6 +43,11 @@ ifndef BUILD_DIR
 	BUILD_DIR:=$(shell dirname "$(BLENDER_DIR)")/build_$(OS_NCASE)
 endif
 
+# Dependencies DIR's
+DEPS_SOURCE_DIR:=$(BLENDER_DIR)/build_files/build_environment
+DEPS_BUILD_DIR:=$(BUILD_DIR)/deps
+DEPS_INSTALL_DIR:=$(shell dirname "$(BLENDER_DIR)")/lib/$(OS_NCASE)
+
 # Allow to use alternative binary (pypy3, etc)
 ifndef PYTHON
 	PYTHON:=python3
@@ -86,13 +91,7 @@ ifndef NPROCS
 	ifeq ($(OS), Linux)
 		NPROCS:=$(shell nproc)
 	endif
-	ifeq ($(OS), Darwin)
-		NPROCS:=$(shell sysctl -n hw.ncpu)
-	endif
-	ifeq ($(OS), FreeBSD)
-		NPROCS:=$(shell sysctl -n hw.ncpu)
-	endif
-	ifeq ($(OS), NetBSD)
+	ifneq (,$(filter $(OS),Darwin FreeBSD NetBSD))
 		NPROCS:=$(shell sysctl -n hw.ncpu)
 	endif
 endif
@@ -146,6 +145,27 @@ cycles: all
 headless: all
 bpy: all
 
+# -----------------------------------------------------------------------------
+# Build dependencies
+DEPS_TARGET = install
+ifneq "$(findstring clean, $(MAKECMDGOALS))" ""
+	DEPS_TARGET = clean
+endif
+
+deps: .FORCE
+	@echo
+	@echo Configuring dependencies in \"$(DEPS_BUILD_DIR)\"
+
+	@cmake -H"$(DEPS_SOURCE_DIR)" \
+	       -B"$(DEPS_BUILD_DIR)" \
+		   -DHARVEST_TARGET=$(DEPS_INSTALL_DIR)
+
+	@echo
+	@echo Building dependencies ...
+	$(MAKE) -C "$(DEPS_BUILD_DIR)" -s -j $(NPROCS) $(DEPS_TARGET)
+	@echo
+	@echo Dependencies successfully built and installed to $(DEPS_INSTALL_DIR).
+	@echo
 
 # -----------------------------------------------------------------------------
 # Configuration (save some cd'ing around)
@@ -164,6 +184,7 @@ help: .FORCE
 	@echo "  * headless  - build without an interface (renderfarm or server automation)"
 	@echo "  * cycles    - build Cycles standalone only, without Blender"
 	@echo "  * bpy       - build as a python module which can be loaded from python directly"
+	@echo "  * deps      - build library dependencies (intended only for platform maintainers)"
 	@echo ""
 	@echo "  * config    - run cmake configuration tool to set build options"
 	@echo ""
@@ -398,10 +419,16 @@ icons: .FORCE
 	"$(BLENDER_DIR)/release/datafiles/prvicons_update.py"
 
 update: .FORCE
+	if [ "$(OS_NCASE)" == "darwin" ] && [ ! -d "../lib/$(OS_NCASE)" ]; then \
+		svn checkout https://svn.blender.org/svnroot/bf-blender/trunk/lib/$(OS_NCASE) ../lib/$(OS_NCASE) ; \
+	fi
 	if [ -d "../lib" ]; then \
+		svn cleanup ../lib/* ; \
 		svn update ../lib/* ; \
 	fi
 	git pull --rebase
+	git submodule update --init --recursive
+	git submodule foreach git checkout master
 	git submodule foreach git pull --rebase origin master
 
 
diff --git a/build_files/build_environment/CMakeLists.txt b/build_files/build_environment/CMakeLists.txt
new file mode 100644
index 00000000000..9f7eb3c2c50
--- /dev/null
+++ b/build_files/build_environment/CMakeLists.txt
@@ -0,0 +1,132 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+####################################################################################################
+#
+# This is a build system used by platform maintainers to build library dependencies on
+# Windows and macOS. There is some support for Linux as well, but not ready for releases.
+#
+# Windows and macOS users should download the precompiled libraries in lib/, Linux users
+# should run install_deps.sh for building dependencies.
+#
+# WINDOWS USAGE:
+#   Don't call this cmake file your self, use build_deps.cmd
+#   build_deps 2013 x64 / build_deps 2013 x86
+#   build_deps 2015 x64 / build_deps 2015 x86
+#
+# MAC OS X USAGE:
+#	Install with homebrew: brew install autoconf automake libtool yasm openssl xz
+#   Run "make deps" from main Blender directory
+#
+# LINUX USAGE:
+#   Install compiler, cmake, autoconf, automake, libtool, yasm
+#   Run "make deps" from main Blender directory
+#
+####################################################################################################
+
+project("BlenderDependencies")
+cmake_minimum_required(VERSION 3.5)
+
+include(ExternalProject)
+include(cmake/options.cmake)
+include(cmake/versions.cmake)
+include(cmake/zlib.cmake)
+include(cmake/blendthumb.cmake)
+include(cmake/openal.cmake)
+include(cmake/png.cmake)
+include(cmake/jpeg.cmake)
+include(cmake/boost.cmake)
+include(cmake/blosc.cmake)
+include(cmake/pthreads.cmake)
+include(cmake/ilmbase.cmake)
+include(cmake/openexr.cmake)
+include(cmake/freetype.cmake)
+include(cmake/freeglut.cmake)
+include(cmake/glew.cmake)
+include(cmake/hdf5.cmake)
+include(cmake/alembic.cmake)
+include(cmake/glfw.cmake)
+include(cmake/clew.cmake)
+include(cmake/cuew.cmake)
+include(cmake/opensubdiv.cmake)
+include(cmake/sdl.cmake)
+include(cmake/opencollada.cmake)
+include(cmake/opencolorio.cmake)
+include(cmake/llvm.cmake)
+include(cmake/clang.cmake)
+include(cmake/openimageio.cmake)
+include(cmake/tiff.cmake)
+include(cmake/flexbison.cmake)
+include(cmake/osl.cmake)
+include(cmake/tbb.cmake)
+include(cmake/openvdb.cmake)
+include(cmake/python.cmake)
+include(cmake/python_site_packages.cmake)
+include(cmake/numpy.cmake)
+if (WITH_WEBP)
+	include(cmake/webp.cmake)
+endif()
+if(WIN32)
+	include(cmake/hidapi.cmake)
+endif()
+
+if(ENABLE_MINGW64)
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+		include(cmake/setup_mingw64.cmake)
+	else()
+		include(cmake/setup_mingw32.cmake)
+	endif()
+else()
+	set(mingw_LIBDIR ${LIBDIR})
+endif()
+
+if(NOT WIN32 OR ENABLE_MINGW64)
+	include(cmake/openjpeg.cmake)
+	if(BUILD_MODE STREQUAL Release)
+		if(WIN32)
+			include(cmake/zlib_mingw.cmake)
+		endif()
+		include(cmake/lame.cmake)
+		include(cmake/ogg.cmake)
+		include(cmake/vorbis.cmake)
+		include(cmake/theora.cmake)
+		include(cmake/vpx.cmake)
+		include(cmake/orc.cmake)
+		include(cmake/schroedinger.cmake)
+		include(cmake/x264.cmake)
+		include(cmake/xvidcore.cmake)
+		include(cmake/faad.cmake)
+		include(cmake/ffmpeg.cmake)
+		include(cmake/fftw.cmake)
+		include(cmake/sndfile.cmake)
+		if(WIN32)
+			include(cmake/iconv.cmake)
+			include(cmake/lapack.cmake)
+		endif()
+		if(UNIX)
+			include(cmake/flac.cmake)
+			if(NOT APPLE)
+				include(cmake/spnav.cmake)
+				include(cmake/jemalloc.cmake)
+				include(cmake/xml2.cmake)
+			endif()
+		endif()
+	endif()
+endif()
+
+include(cmake/harvest.cmake)
diff --git a/build_files/build_environment/cmake/alembic.cmake b/build_files/build_environment/cmake/alembic.cmake
new file mode 100644
index 00000000000..a49047ec102
--- /dev/null
+++ b/build_files/build_environment/cmake/alembic.cmake
@@ -0,0 +1,75 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(ALEMBIC_HDF5)
+	set(ALEMBIC_HDF5_HL)
+	# in debug mode we do not build HDF5_hdf5_hl_LIBRARY which makes cmake really
+	# unhappy, stub it with the debug mode lib. it's not linking it in at this
+	# point in time anyhow
+	if(BUILD_MODE STREQUAL Debug)
+		set(ALEMBIC_HDF5_HL -DHDF5_hdf5_hl_LIBRARY=${LIBDIR}/hdf5/lib/libhdf5_hl_D.${LIBEXT})
+	endif()
+endif()
+
+set(ALEMBIC_EXTRA_ARGS
+	-DBUILDSTATIC=ON
+	-DLINKSTATIC=ON
+	-DALEMBIC_LIB_USES_BOOST=ON
+	-DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
+	-DBoost_USE_MULTITHREADED=ON
+	-DUSE_STATIC_BOOST=On
+	-DBoost_USE_STATIC_LIBS=ON
+	-DBoost_USE_STATIC_RUNTIME=ON
+	-DBoost_DEBUG=ON
+	-DBOOST_ROOT=${LIBDIR}/boost
+	-DBoost_NO_SYSTEM_PATHS=ON
+	-DILMBASE_ROOT=${LIBDIR}/ilmbase
+	-DALEMBIC_ILMBASE_INCLUDE_DIRECTORY=${LIBDIR}/ilmbase/include/OpenEXR
+	-DALEMBIC_ILMBASE_HALF_LIB=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Half${LIBEXT}
+	-DALEMBIC_ILMBASE_IMATH_LIB=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Imath-2_2${LIBEXT}
+	-DALEMBIC_ILMBASE_ILMTHREAD_LIB=${LIBDIR}/ilmbase/lib/${LIBPREFIX}IlmThread-2_2${LIBEXT}
+	-DALEMBIC_ILMBASE_IEX_LIB=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Iex-2_2${LIBEXT}
+	-DUSE_PYILMBASE=0
+	-DUSE_PYALEMBIC=0
+	-DUSE_ARNOLD=0
+	-DUSE_MAYA=0
+	-DUSE_PRMAN=0
+	-DUSE_HDF5=Off
+	-DUSE_STATIC_HDF5=Off
+	-DHDF5_ROOT=${LIBDIR}/hdf5
+	-DUSE_TESTS=Off
+	-DALEMBIC_NO_OPENGL=1
+	-DUSE_BINARIES=ON
+	-DALEMBIC_ILMBASE_LINK_STATIC=On
+	-DALEMBIC_SHARED_LIBS=OFF
+	-DGLUT_INCLUDE_DIR=""
+	-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+	-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+	${ALEMBIC_HDF5_HL}
+)
+
+ExternalProject_Add(external_alembic
+	URL ${ALEMBIC_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${ALEMBIC_MD5}
+	PREFIX ${BUILD_DIR}/alembic
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/alembic -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${ALEMBIC_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/alembic
+)
+
+add_dependencies(external_alembic external_boost external_zlib external_ilmbase)
diff --git a/build_files/build_environment/cmake/blendthumb.cmake b/build_files/build_environment/cmake/blendthumb.cmake
new file mode 100644
index 00000000000..624869971c6
--- /dev/null
+++ b/build_files/build_environment/cmake/blendthumb.cmake
@@ -0,0 +1,61 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(BUILD_MODE STREQUAL Release)
+	if(WIN32)
+		set(THUMB_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../release/windows/blendthumb)
+
+		ExternalProject_Add(external_zlib_32
+			URL ${ZLIB_URI}
+			CMAKE_GENERATOR ${GENERATOR_32}
+			URL_HASH MD5=${ZLIB_HASH}
+			DOWNLOAD_DIR ${DOWNLOAD_DIR}
+			PREFIX ${BUILD_DIR}/zlib32
+			CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/zlib32 ${DEFAULT_CMAKE_FLAGS}
+			INSTALL_DIR ${LIBDIR}/zlib32
+		)
+
+		ExternalProject_Add(external_zlib_64
+			URL ${ZLIB_URI}
+			CMAKE_GENERATOR ${GENERATOR_64}
+			URL_HASH MD5=${ZLIB_HASH}
+			DOWNLOAD_DIR ${DOWNLOAD_DIR}
+			PREFIX ${BUILD_DIR}/zlib64
+			CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/zlib64 ${DEFAULT_CMAKE_FLAGS}
+			INSTALL_DIR ${LIBDIR}/zlib64
+		)
+
+		ExternalProject_Add(external_blendthumb_32
+			CMAKE_GENERATOR ${GENERATOR_32}
+			SOURCE_DIR ${THUMB_DIR}
+			PREFIX ${BUILD_DIR}/blendthumb32
+			CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/blendThumb32 ${DEFAULT_CMAKE_FLAGS} -DZLIB_INCLUDE=${LIBDIR}/zlib32/include -DZLIB_LIBS=${LIBDIR}/zlib32/lib/zlibstatic.lib
+			INSTALL_DIR ${LIBDIR}/blendthumb32
+		)
+		add_dependencies(external_blendthumb_32 external_zlib_32)
+
+		ExternalProject_Add(external_blendthumb_64
+			CMAKE_GENERATOR ${GENERATOR_64}
+			SOURCE_DIR ${THUMB_DIR}
+			PREFIX ${BUILD_DIR}/blendthumb64
+			CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/blendThumb64 ${DEFAULT_CMAKE_FLAGS} -DZLIB_INCLUDE=${LIBDIR}/zlib64/include -DZLIB_LIBS=${LIBDIR}/zlib64/lib/zlibstatic.lib
+			INSTALL_DIR ${LIBDIR}/blendthumb64
+		)
+		add_dependencies(external_blendthumb_64 external_zlib_64)
+	endif()
+endif()
diff --git a/build_files/build_environment/cmake/blosc.cmake b/build_files/build_environment/cmake/blosc.cmake
new file mode 100644
index 00000000000..68df525b802
--- /dev/null
+++ b/build_files/build_environment/cmake/blosc.cmake
@@ -0,0 +1,43 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(BLOSC_EXTRA_ARGS
+	-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+	-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+	-DBUILD_TESTS=OFF
+	-DBUILD_BENCHMARKS=OFF
+	-DCMAKE_DEBUG_POSTFIX=_d
+	-DThreads_FOUND=1
+	-DPTHREAD_LIBS=${LIBDIR}/pthreads/lib/pthreadVC2.lib
+	-DPTHREAD_INCLUDE_DIR=${LIBDIR}/pthreads/inc
+)
+
+ExternalProject_Add(external_blosc
+	URL ${BLOSC_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${BLOSC_HASH}
+	PREFIX ${BUILD_DIR}/blosc
+	PATCH_COMMAND ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/blosc/src/external_blosc < ${PATCH_DIR}/blosc.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/blosc ${DEFAULT_CMAKE_FLAGS} ${BLOSC_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/blosc
+)
+
+add_dependencies(external_blosc external_zlib)
+if(WIN32)
+	add_dependencies(external_blosc external_pthreads)
+endif()
diff --git a/build_files/build_environment/cmake/boost.cmake b/build_files/build_environment/cmake/boost.cmake
new file mode 100644
index 00000000000..d98df30a38f
--- /dev/null
+++ b/build_files/build_environment/cmake/boost.cmake
@@ -0,0 +1,107 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(WIN32)
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+		set(PYTHON_ARCH x64)
+		set(PYTHON_ARCH2 win-AMD64)
+		set(PYTHON_OUTPUTDIR ${BUILD_DIR}/python/src/external_python/pcbuild/amd64/)
+	else()
+		set(PYTHON_ARCH x86)
+		set(PYTHON_ARCH2 win32)
+		set(PYTHON_OUTPUTDIR ${BUILD_DIR}/python/src/external_python/pcbuild/win32/)
+	endif()
+	if(MSVC12)
+		set(BOOST_TOOLSET toolset=msvc-12.0)
+		set(BOOST_COMPILER_STRING -vc120)
+		set(PYTHON_COMPILER_STRING v120)
+	endif()
+	if(MSVC14)
+		set(BOOST_TOOLSET toolset=msvc-14.0)
+		set(BOOST_COMPILER_STRING -vc140)
+		set(PYTHON_COMPILER_STRING v140)
+	endif()
+	set(JAM_FILE ${BUILD_DIR}/boost/src/external_boost/user-config.jam)
+	set(semi_path "${PATCH_DIR}/semi.txt")
+	FILE(TO_NATIVE_PATH ${semi_path} semi_path)
+	set(BOOST_CONFIGURE_COMMAND bootstrap.bat &&
+								echo using python : ${PYTHON_OUTPUTDIR}\\python.exe > "${JAM_FILE}" &&
+								echo.   : ${BUILD_DIR}/python/src/external_python/include ${BUILD_DIR}/python/src/external_python/pc >> "${JAM_FILE}" &&
+								echo.   : ${BUILD_DIR}/python/src/external_python/pcbuild >> "${JAM_FILE}" &&
+								type ${semi_path} >> "${JAM_FILE}"
+	)
+	set(BOOST_BUILD_COMMAND bjam)
+	#--user-config=user-config.jam
+	set(BOOST_BUILD_OPTIONS runtime-link=static )
+	#set(BOOST_WITH_PYTHON --with-python)
+	set(BOOST_HARVEST_CMD 	${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/boost/lib/ ${HARVEST_TARGET}/boost/lib/ )
+	if(BUILD_MODE STREQUAL Release)
+		set(BOOST_HARVEST_CMD ${BOOST_HARVEST_CMD} && ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/boost/include/boost-1_60/ ${HARVEST_TARGET}/boost/include/)
+	endif()
+
+elseif(APPLE)
+	set(BOOST_CONFIGURE_COMMAND ./bootstrap.sh)
+	set(BOOST_BUILD_COMMAND ./bjam)
+	set(BOOST_BUILD_OPTIONS toolset=clang cxxflags=${PLATFORM_CXXFLAGS} linkflags=${PLATFORM_LDFLAGS} --disable-icu boost.locale.icu=off)
+	set(BOOST_HARVEST_CMD echo .)
+else()
+	set(BOOST_HARVEST_CMD echo .)
+	set(BOOST_CONFIGURE_COMMAND ./bootstrap.sh)
+	set(BOOST_BUILD_COMMAND ./bjam)
+	set(BOOST_BUILD_OPTIONS cxxflags=${PLATFORM_CXXFLAGS} --disable-icu boost.locale.icu=off)
+endif()
+
+set(BOOST_OPTIONS
+	--with-filesystem
+	--with-locale
+	--with-thread
+	--with-regex
+	--with-system
+	--with-date_time
+	--with-wave
+	--with-atomic
+	--with-serialization
+	--with-program_options
+	--with-iostreams
+	${BOOST_WITH_PYTHON}
+	${BOOST_TOOLSET}
+)
+
+if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+	set(BOOST_ADDRESS_MODEL 64)
+else()
+	set(BOOST_ADDRESS_MODEL 32)
+endif()
+
+string(TOLOWER ${BUILD_MODE} BOOST_BUILD_TYPE)
+
+ExternalProject_Add(external_boost
+	URL ${BOOST_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${BOOST_MD5}
+	PREFIX ${BUILD_DIR}/boost
+	UPDATE_COMMAND	""
+	CONFIGURE_COMMAND ${BOOST_CONFIGURE_COMMAND}
+	BUILD_COMMAND ${BOOST_BUILD_COMMAND} ${BOOST_BUILD_OPTIONS} -j${MAKE_THREADS} architecture=x86 address-model=${BOOST_ADDRESS_MODEL} variant=${BOOST_BUILD_TYPE} link=static threading=multi ${BOOST_OPTIONS}	--prefix=${LIBDIR}/boost install
+	BUILD_IN_SOURCE 1
+	INSTALL_COMMAND "${BOOST_HARVEST_CMD}"
+)
+
+if(WIN32)
+	add_dependencies(external_boost Make_Python_Environment)
+endif()
diff --git a/build_files/build_environment/cmake/clang.cmake b/build_files/build_environment/cmake/clang.cmake
new file mode 100644
index 00000000000..2c7f271b5fc
--- /dev/null
+++ b/build_files/build_environment/cmake/clang.cmake
@@ -0,0 +1,51 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(CLANG_EXTRA_ARGS
+	-DCLANG_PATH_TO_LLVM_SOURCE=${BUILD_DIR}/ll/src/ll
+	-DCLANG_PATH_TO_LLVM_BUILD=${LIBDIR}/llvm
+	-DLLVM_USE_CRT_RELEASE=MT
+	-DLLVM_USE_CRT_DEBUG=MTd
+)
+ExternalProject_Add(external_clang
+	URL ${CLANG_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${CLANG_HASH}
+	PATCH_COMMAND ${PATCH_CMD} -p 2 -N -R -d ${BUILD_DIR}/clang/src/external_clang < ${PATCH_DIR}/clang.diff
+	PREFIX ${BUILD_DIR}/clang
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/clang ${DEFAULT_CMAKE_FLAGS} ${CLANG_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/clang
+)
+
+if (MSVC)
+	if (BUILD_MODE STREQUAL Release)
+		set(CLANG_HARVEST_COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/clang/ ${HARVEST_TARGET}/llvm/ )
+	else()
+		set(CLANG_HARVEST_COMMAND
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/clang/lib/ ${HARVEST_TARGET}/llvm/debug/lib/ &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/clang/bin/ ${HARVEST_TARGET}/llvm/debug/bin/ &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/clang/include/ ${HARVEST_TARGET}/llvm/debug/include/ 
+			)
+	endif()
+	ExternalProject_Add_Step(external_clang after_install
+		COMMAND ${CLANG_HARVEST_COMMAND}
+		DEPENDEES mkdir update patch download configure build install
+	)
+endif()
+
+add_dependencies(external_clang ll)
diff --git a/build_files/build_environment/cmake/clew.cmake b/build_files/build_environment/cmake/clew.cmake
new file mode 100644
index 00000000000..0dcc1f24db7
--- /dev/null
+++ b/build_files/build_environment/cmake/clew.cmake
@@ -0,0 +1,28 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(CLEW_EXTRA_ARGS)
+
+ExternalProject_Add(external_clew
+	URL ${CLEW_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${CLEW_HASH}
+	PREFIX ${BUILD_DIR}/clew
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/clew -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${CLEW_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/clew
+)
diff --git a/build_files/build_environment/cmake/cuew.cmake b/build_files/build_environment/cmake/cuew.cmake
new file mode 100644
index 00000000000..99b7bb5c06d
--- /dev/null
+++ b/build_files/build_environment/cmake/cuew.cmake
@@ -0,0 +1,29 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(CUEW_EXTRA_ARGS)
+
+ExternalProject_Add(external_cuew
+	URL ${CUEW_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${CUEW_HASH}
+	PREFIX ${BUILD_DIR}/cuew
+	PATCH_COMMAND ${PATCH_CMD} --verbose -p 0 -N -d ${BUILD_DIR}/cuew/src/external_cuew < ${PATCH_DIR}/cuew.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/cuew -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${CUEW_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/cuew
+)
diff --git a/build_files/build_environment/cmake/faad.cmake b/build_files/build_environment/cmake/faad.cmake
new file mode 100644
index 00000000000..3dd90971b84
--- /dev/null
+++ b/build_files/build_environment/cmake/faad.cmake
@@ -0,0 +1,35 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(FAAD_EXTRA_ARGS)
+
+ExternalProject_Add(external_faad
+	URL ${FAAD_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${FAAD_HASH}
+	PREFIX ${BUILD_DIR}/faad
+	PATCH_COMMAND ${PATCH_CMD} --verbose -p 0 -N -d ${BUILD_DIR}/faad/src/external_faad < ${PATCH_DIR}/libfaad.diff
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/faad/src/external_faad/ && ${CONFIGURE_COMMAND} --disable-shared --enable-static --prefix=${LIBDIR}/faad
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/faad/src/external_faad/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/faad/src/external_faad/ && make install
+	INSTALL_DIR ${LIBDIR}/faad
+)
+
+if(MSVC)
+	set_target_properties(external_faad PROPERTIES FOLDER Mingw)
+endif()
diff --git a/build_files/build_environment/cmake/ffmpeg.cmake b/build_files/build_environment/cmake/ffmpeg.cmake
new file mode 100644
index 00000000000..2a45849acf5
--- /dev/null
+++ b/build_files/build_environment/cmake/ffmpeg.cmake
@@ -0,0 +1,119 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(FFMPEG_CFLAGS "-I${mingw_LIBDIR}/lame/include -I${mingw_LIBDIR}/openjpeg/include/ -I${mingw_LIBDIR}/ogg/include -I${mingw_LIBDIR}/vorbis/include -I${mingw_LIBDIR}/theora/include -I${mingw_LIBDIR}/vpx/include -I${mingw_LIBDIR}/x264/include -I${mingw_LIBDIR}/xvidcore/include -I${mingw_LIBDIR}/dirac/include/dirac -I${mingw_LIBDIR}/schroedinger/include/schroedinger-1.0 -I${mingw_LIBDIR}/zlib/include")
+set(FFMPEG_LDFLAGS "-L${mingw_LIBDIR}/lame/lib -L${mingw_LIBDIR}/openjpeg/lib -L${mingw_LIBDIR}/ogg/lib -L${mingw_LIBDIR}/vorbis/lib -L${mingw_LIBDIR}/theora/lib -L${mingw_LIBDIR}/vpx/lib -L${mingw_LIBDIR}/x264/lib -L${mingw_LIBDIR}/xvidcore/lib -L${mingw_LIBDIR}/dirac/lib -L${mingw_LIBDIR}/schroedinger/lib -L${mingw_LIBDIR}/orc/lib -L${mingw_LIBDIR}/zlib/lib")
+set(FFMPEG_EXTRA_FLAGS --extra-cflags=${FFMPEG_CFLAGS} --extra-ldflags=${FFMPEG_LDFLAGS})
+set(FFMPEG_ENV PKG_CONFIG_PATH=${mingw_LIBDIR}/schroedinger/lib/pkgconfig:${mingw_LIBDIR}/orc/lib/pkgconfig:${mingw_LIBDIR}/x264/lib/pkgconfig:${mingw_LIBDIR})
+
+if(WIN32)
+	set(FFMPEG_ENV set ${FFMPEG_ENV} &&)
+	set(FFMPEG_EXTRA_FLAGS
+		${FFMPEG_EXTRA_FLAGS}
+		--disable-static
+		--enable-shared
+		--enable-w32threads
+		--disable-pthreads
+		--enable-libopenjpeg
+		)
+else()
+	set(FFMPEG_EXTRA_FLAGS
+		${FFMPEG_EXTRA_FLAGS}
+		--enable-static
+		--disable-shared
+		--enable-libopenjpeg)
+endif()
+
+if(APPLE)
+	set(FFMPEG_EXTRA_FLAGS
+		${FFMPEG_EXTRA_FLAGS}
+		--target-os=darwin
+		)
+endif()
+
+ExternalProject_Add(external_ffmpeg
+	URL ${FFMPEG_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${FFMPEG_HASH}
+	PREFIX ${BUILD_DIR}/ffmpeg
+	CONFIGURE_COMMAND ${CONFIGURE_ENV_NO_PERL} &&
+		cd ${BUILD_DIR}/ffmpeg/src/external_ffmpeg/ &&
+		${FFMPEG_ENV} ${CONFIGURE_COMMAND_NO_TARGET} ${FFMPEG_EXTRA_FLAGS}
+		--disable-lzma
+		--disable-avfilter
+		--disable-vdpau
+		--disable-bzlib
+		--disable-libgsm
+		--disable-libspeex
+		--enable-libvpx
+		--prefix=${LIBDIR}/ffmpeg
+		--enable-libschroedinger
+		--enable-libtheora
+		--enable-libvorbis
+		--enable-zlib
+		--enable-stripping
+		--enable-runtime-cpudetect
+		--disable-vaapi
+		--disable-nonfree
+		--enable-gpl
+		--disable-postproc
+		--disable-x11grab
+		--enable-libmp3lame
+		--disable-librtmp
+		--enable-libx264
+		--enable-libxvid
+		--disable-libopencore-amrnb
+		--disable-libopencore-amrwb
+		--disable-libdc1394
+		--disable-version3
+		--disable-debug
+		--enable-optimizations
+		--disable-sse
+		--disable-ssse3
+		--enable-ffplay
+		--disable-openssl
+		--disable-securetransport
+		--disable-indev=avfoundation
+		--disable-indev=qtkit
+		--disable-sdl
+		--disable-gnutls
+		--disable-vda
+		--disable-videotoolbox
+		--disable-libxcb
+		--disable-xlib
+		--disable-audiotoolbox
+		--disable-cuvid
+		--disable-nvenc
+		--disable-indev=jack
+		--disable-indev=alsa
+		--disable-outdev=alsa
+  PATCH_COMMAND ${PATCH_CMD} --verbose -p 0 -N -d ${BUILD_DIR}/ffmpeg/src/external_ffmpeg < ${PATCH_DIR}/ffmpeg.diff
+  BUILD_COMMAND ${CONFIGURE_ENV_NO_PERL} && cd ${BUILD_DIR}/ffmpeg/src/external_ffmpeg/ && make -j${MAKE_THREADS}
+  INSTALL_COMMAND ${CONFIGURE_ENV_NO_PERL} && cd ${BUILD_DIR}/ffmpeg/src/external_ffmpeg/ && make install
+  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/ffmpeg ${DEFAULT_CMAKE_FLAGS}
+  INSTALL_DIR ${LIBDIR}/ffmpeg
+)
+
+if(MSVC)
+	set_target_properties(external_ffmpeg PROPERTIES FOLDER Mingw)
+endif(MSVC)
+
+add_dependencies(external_ffmpeg external_zlib external_faad external_openjpeg external_xvidcore external_x264 external_schroedinger external_vpx external_theora external_vorbis external_ogg external_lame)
+if(WIN32)
+	add_dependencies(external_ffmpeg external_zlib_mingw)
+endif()
diff --git a/build_files/build_environment/cmake/fftw.cmake b/build_files/build_environment/cmake/fftw.cmake
new file mode 100644
index 00000000000..e6e6165199c
--- /dev/null
+++ b/build_files/build_environment/cmake/fftw.cmake
@@ -0,0 +1,40 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(FFTW_EXTRA_ARGS)
+
+if(WIN32)
+	set(FFTW3_ENV set CFLAGS=-fno-stack-check -fno-stack-protector -mno-stack-arg-probe -fno-lto &&)
+	set(FFTW3_PATCH_COMMAND ${PATCH_CMD} --verbose -p 0 -N -d ${BUILD_DIR}/fftw3/src/external_fftw3 < ${PATCH_DIR}/fftw3.diff)
+endif()
+
+ExternalProject_Add(external_fftw3
+	URL ${FFTW_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${FFTW_HASH}
+	PREFIX ${BUILD_DIR}/fftw3
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && ${FFTW3_ENV} cd ${BUILD_DIR}/fftw3/src/external_fftw3/ && ${CONFIGURE_COMMAND} --enable-static --prefix=${mingw_LIBDIR}/fftw3
+	PATCH_COMMAND ${FFTW3_PATCH_COMMAND}
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/fftw3/src/external_fftw3/ && make	-j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/fftw3/src/external_fftw3/ && make install
+	INSTALL_DIR ${LIBDIR}/fftw3
+)
+
+if(MSVC)
+	set_target_properties(external_fftw3 PROPERTIES FOLDER Mingw)
+endif(MSVC)
diff --git a/build_files/build_environment/cmake/flac.cmake b/build_files/build_environment/cmake/flac.cmake
new file mode 100644
index 00000000000..74d222632d0
--- /dev/null
+++ b/build_files/build_environment/cmake/flac.cmake
@@ -0,0 +1,32 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+ExternalProject_Add(external_flac
+	URL ${FLAC_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${FLAC_HASH}
+	PREFIX ${BUILD_DIR}/flac
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flac/src/external_flac/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/flac --disable-shared --enable-static
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flac/src/external_flac/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/flac/src/external_flac/ && make install
+	INSTALL_DIR ${LIBDIR}/flac
+)
+
+if(MSVC)
+	set_target_properties(external_flac PROPERTIES FOLDER Mingw)
+endif(MSVC)
diff --git a/build_files/build_environment/cmake/flexbison.cmake b/build_files/build_environment/cmake/flexbison.cmake
new file mode 100644
index 00000000000..f2908e1ce2c
--- /dev/null
+++ b/build_files/build_environment/cmake/flexbison.cmake
@@ -0,0 +1,31 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(FLEXBISON_EXTRA_ARGS)
+
+ExternalProject_Add(external_flexbison
+	URL ${FLEXBISON_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${FLEXBISON_HASH}
+	PREFIX ${BUILD_DIR}/flexbison
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/flexbison ${DEFAULT_CMAKE_FLAGS} ${FLEXBISON_EXTRA_ARGS}
+	CONFIGURE_COMMAND echo .
+	BUILD_COMMAND echo .
+	INSTALL_COMMAND COMMAND ${CMAKE_COMMAND} -E copy_directory ${BUILD_DIR}/flexbison/src/external_flexbison/ ${LIBDIR}/flexbison/
+	INSTALL_DIR ${LIBDIR}/flexbison
+)
diff --git a/build_files/build_environment/cmake/freeglut.cmake b/build_files/build_environment/cmake/freeglut.cmake
new file mode 100644
index 00000000000..043b382e8fd
--- /dev/null
+++ b/build_files/build_environment/cmake/freeglut.cmake
@@ -0,0 +1,35 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(WIN32)
+	if(BUILD_MODE STREQUAL Release)
+		set(FREEGLUT_EXTRA_ARGS
+			-DFREEGLUT_BUILD_SHARED_LIBS=Off
+			-DFREEGLUT_BUILD_STATIC_LIBS=On
+		)
+
+		ExternalProject_Add(external_freeglut
+			URL ${FREEGLUT_URI}
+			DOWNLOAD_DIR ${DOWNLOAD_DIR}
+			URL_HASH MD5=${FREEGLUT_HASH}
+			PREFIX ${BUILD_DIR}/freeglut
+			CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/freeglut ${DEFAULT_C_FLAGS} ${DEFAULT_CXX_FLAGS} ${FREEGLUT_EXTRA_ARGS}
+			INSTALL_DIR ${LIBDIR}/freeglut
+		)
+	endif()
+endif()
diff --git a/build_files/build_environment/cmake/freetype.cmake b/build_files/build_environment/cmake/freetype.cmake
new file mode 100644
index 00000000000..751b2b1f383
--- /dev/null
+++ b/build_files/build_environment/cmake/freetype.cmake
@@ -0,0 +1,28 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(FREETYPE_EXTRA_ARGS -DCMAKE_RELEASE_POSTFIX:STRING=2ST -DCMAKE_DEBUG_POSTFIX:STRING=2ST_d -DWITH_BZip2=OFF -DWITH_HarfBuzz=OFF)
+
+ExternalProject_Add(external_freetype
+	URL ${FREETYPE_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${FREETYPE_HASH}
+	PREFIX ${BUILD_DIR}/freetype
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/freetype ${DEFAULT_CMAKE_FLAGS} ${FREETYPE_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/freetype
+)
diff --git a/build_files/build_environment/cmake/glew.cmake b/build_files/build_environment/cmake/glew.cmake
new file mode 100644
index 00000000000..b5d9e4d3310
--- /dev/null
+++ b/build_files/build_environment/cmake/glew.cmake
@@ -0,0 +1,32 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(GLEW_EXTRA_ARGS
+	-DBUILD_UTILS=Off
+	-DBUILD_SHARED_LIBS=Off
+)
+
+ExternalProject_Add(external_glew
+	URL ${GLEW_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${GLEW_HASH}
+	PATCH_COMMAND COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_glew.txt	${BUILD_DIR}/glew/src/external_glew/CMakeLists.txt
+	PREFIX ${BUILD_DIR}/glew
+	CMAKE_ARGS -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_INSTALL_PREFIX=${LIBDIR}/glew ${DEFAULT_CMAKE_FLAGS} ${GLEW_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/glew
+)
diff --git a/build_files/build_environment/cmake/glfw.cmake b/build_files/build_environment/cmake/glfw.cmake
new file mode 100644
index 00000000000..ae80080525c
--- /dev/null
+++ b/build_files/build_environment/cmake/glfw.cmake
@@ -0,0 +1,28 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(GLFW_EXTRA_ARGS)
+
+ExternalProject_Add(external_glfw
+	URL ${GLFW_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${GLFW_HASH}
+	PREFIX ${BUILD_DIR}/glfw
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/glfw -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${GLFW_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/glfw
+)
diff --git a/build_files/build_environment/cmake/harvest.cmake b/build_files/build_environment/cmake/harvest.cmake
new file mode 100644
index 00000000000..a430c4b33bf
--- /dev/null
+++ b/build_files/build_environment/cmake/harvest.cmake
@@ -0,0 +1,279 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+########################################################################
+# Copy all generated files to the proper strucure as blender prefers
+########################################################################
+
+if(NOT DEFINED HARVEST_TARGET)
+	set(HARVEST_TARGET ${CMAKE_CURRENT_SOURCE_DIR}/Harvest)
+endif()
+message("HARVEST_TARGET = ${HARVEST_TARGET}")
+
+if(WIN32)
+
+if(BUILD_MODE STREQUAL Release)
+	add_custom_target(Harvest_Release_Results
+				# Zlib Rename the lib file and copy the include/bin folders
+		COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/zlib/lib/zlibstatic.lib ${HARVEST_TARGET}/zlib/lib/libz_st.lib &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/zlib/include/ ${HARVEST_TARGET}/zlib/include/ &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/zlib/bin/ ${HARVEST_TARGET}/zlib/bin/ &&
+				# jpeg rename libfile + copy include
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/jpg/lib/jpeg-static.lib ${HARVEST_TARGET}/jpeg/lib/libjpeg.lib &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/jpg/include/ ${HARVEST_TARGET}/jpeg/include/ &&
+				# FreeType, straight up copy
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/freetype ${HARVEST_TARGET}/freetype &&
+				# pthreads, rename include dir
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/pthreads/inc/ ${HARVEST_TARGET}/pthreads/include/ &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/pthreads/lib/ ${HARVEST_TARGET}/pthreads/lib &&
+				# ffmpeg copy include+bin
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/ffmpeg/include ${HARVEST_TARGET}/ffmpeg/include &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/ffmpeg/bin ${HARVEST_TARGET}/ffmpeg/lib &&
+				# sdl merge bin/lib folder, copy include
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/sdl/include/sdl2 ${HARVEST_TARGET}/sdl/include &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/sdl/lib ${HARVEST_TARGET}/sdl/lib &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/sdl/bin ${HARVEST_TARGET}/sdl/lib &&
+				# openal
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/openal/lib/openal32.lib ${HARVEST_TARGET}/openal/lib/openal32.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/openal/bin/openal32.dll ${HARVEST_TARGET}/openal/lib/openal32.dll &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openal/include/ ${HARVEST_TARGET}/openal/include/ &&
+				# OpenImageIO
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/OpenImageIO/include ${HARVEST_TARGET}/OpenImageIO/include &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/OpenImageIO/lib ${HARVEST_TARGET}/OpenImageIO/lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/OpenImageIO/bin/idiff.exe ${HARVEST_TARGET}/OpenImageIO/bin/idiff.exe &&
+				# openEXR
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/ilmbase ${HARVEST_TARGET}/openexr &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openexr/lib ${HARVEST_TARGET}/openexr/lib &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openexr/include ${HARVEST_TARGET}/openexr/include &&
+				# png
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/png/lib/libpng16_static.lib ${HARVEST_TARGET}/png/lib/libpng.lib &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/png/include/ ${HARVEST_TARGET}/png/include/ &&
+				# fftw3
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/fftw3/lib/libfftw3.a ${HARVEST_TARGET}/fftw3/lib/libfftw.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/fftw3/include/fftw3.h ${HARVEST_TARGET}/fftw3/include/fftw3.h &&
+				# freeglut-> opengl
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/freeglut/lib/freeglut_static.lib ${HARVEST_TARGET}/opengl/lib/freeglut_static.lib &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/freeglut/include/ ${HARVEST_TARGET}/opengl/include/ &&
+				# glew-> opengl
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/glew/lib/libglew32.lib ${HARVEST_TARGET}/opengl/lib/glew.lib &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/glew/include/ ${HARVEST_TARGET}/opengl/include/ &&
+				# sndfile
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/sndfile/lib/libsndfile.dll.a ${HARVEST_TARGET}/sndfile/lib/libsndfile-1.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/sndfile/bin/libsndfile-1.dll ${HARVEST_TARGET}/sndfile/lib/libsndfile-1.dll &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/sndfile/include/sndfile.h ${HARVEST_TARGET}/sndfile/include/sndfile.h &&
+				# tiff
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/tiff/lib/tiff.lib ${HARVEST_TARGET}/tiff/lib/libtiff.lib &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/tiff/include/ ${HARVEST_TARGET}/tiff/include/ &&
+				# iconv
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/iconv/lib/libiconv.a ${HARVEST_TARGET}/iconv/lib/iconv.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/iconv/include/iconv.h ${HARVEST_TARGET}/iconv/include/iconv.h &&
+				# opencolorIO
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/OpenColorIO/ ${HARVEST_TARGET}/opencolorio &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/OpenColorIO/lib/OpenColorIO.dll ${HARVEST_TARGET}/opencolorio/bin/OpenColorIO.dll &&
+				# Osl
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/osl/ ${HARVEST_TARGET}/osl &&
+				# OpenVDB
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/openVDB/ ${HARVEST_TARGET}/openVDB &&
+				# blosc
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/blosc/lib/libblosc.lib ${HARVEST_TARGET}/blosc/lib/libblosc.lib &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/blosc/include/ ${HARVEST_TARGET}/blosc/include/ &&
+				# tbb
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb_static.lib ${HARVEST_TARGET}/tbb/lib/tbb.lib &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/tbb/include/ ${HARVEST_TARGET}/tbb/include/ &&
+				# opencollada
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opencollada/ ${HARVEST_TARGET}/opencollada/ &&
+				# opensubdiv
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/opensubdiv ${HARVEST_TARGET}/opensubdiv &&
+				# python
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/python/ ${HARVEST_TARGET}/python/ &&
+				# alembic
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/alembic ${HARVEST_TARGET}/alembic &&
+				# hdf5
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/hdf5 ${HARVEST_TARGET}/hdf5 &&
+				# BlendThumb
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/BlendThumb64/bin/blendthumb.dll ${HARVEST_TARGET}/ThumbHandler/lib/BlendThumb64.dll &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/BlendThumb32/bin/blendthumb.dll ${HARVEST_TARGET}/ThumbHandler/lib/BlendThumb.dll &&
+				# python
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}.tar.gz ${HARVEST_TARGET}/Release/python${PYTHON_SHORT_VERSION_NO_DOTS}.tar.gz &&
+				# numpy
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}_numpy_${NUMPY_SHORT_VERSION}.tar.gz ${HARVEST_TARGET}/Release/python${PYTHON_SHORT_VERSION_NO_DOTS}_numpy_${NUMPY_SHORT_VERSION}.tar.gz &&
+				# hidapi
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/hidapi/ ${HARVEST_TARGET}/hidapi/ &&
+				# webp, straight up copy
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/webp ${HARVEST_TARGET}/webp
+		DEPENDS
+)
+endif(BUILD_MODE STREQUAL Release)
+
+if(BUILD_MODE STREQUAL Debug)
+	add_custom_target(Harvest_Debug_Results
+				# OpenImageIO
+		COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/openimageio/lib/OpenImageIO.lib ${HARVEST_TARGET}/openimageio/lib/OpenImageIO_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/openimageio/lib/OpenImageIO_Util.lib ${HARVEST_TARGET}/openimageio/lib/OpenImageIO_Util_d.lib &&
+				# ilmbase+openexr
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/ilmbase/lib/Half.lib ${HARVEST_TARGET}/openexr/lib/Half_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/ilmbase/lib/Iex-2_2.lib ${HARVEST_TARGET}/openexr/lib/Iex-2_2_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/ilmbase/lib/IexMath-2_2.lib ${HARVEST_TARGET}/openexr/lib/IexMath-2_2_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/ilmbase/lib/IlmThread-2_2.lib ${HARVEST_TARGET}/openexr/lib/IlmThread-2_2_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/ilmbase/lib/Imath-2_2.lib ${HARVEST_TARGET}/openexr/lib/Imath-2_2_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/openexr/lib/IlmImf-2_2.lib ${HARVEST_TARGET}/openexr/lib/IlmImf-2_2_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/openexr/lib/IlmImfUtil-2_2.lib ${HARVEST_TARGET}/openexr/lib/IlmImfUtil-2_2_d.lib &&
+				# opencollada
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/buffer.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/buffer_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/ftoa.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/ftoa_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/GeneratedSaxParser.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/GeneratedSaxParser_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/MathMLSolver.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/MathMLSolver_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/OpenCOLLADABaseUtils.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/OpenCOLLADABaseUtils_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/OpenCOLLADAFramework.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/OpenCOLLADAFramework_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/OpenCOLLADASaxFrameworkLoader.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/OpenCOLLADASaxFrameworkLoader_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/OpenCOLLADAStreamWriter.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/OpenCOLLADAStreamWriter_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/pcre.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/pcre_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/UTF.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/UTF_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/opencollada/lib/opencollada/xml.lib ${HARVEST_TARGET}/opencollada/lib/opencollada/xml_d.lib &&
+				# blosc
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/blosc/lib/libblosc_d.lib ${HARVEST_TARGET}/blosc/lib/libblosc_d.lib &&
+				# osl
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/osl/lib/oslcomp.lib ${HARVEST_TARGET}/osl/lib/oslcomp_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/osl/lib/oslexec.lib ${HARVEST_TARGET}/osl/lib/oslexec_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/osl/lib/oslquery.lib ${HARVEST_TARGET}/osl/lib/oslquery_d.lib &&
+				# opensubdiv
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/opensubdiv/lib/osdCPU.lib ${HARVEST_TARGET}/opensubdiv/lib/osdCPU_d.lib &&
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/opensubdiv/lib/osdGPU.lib ${HARVEST_TARGET}/opensubdiv/lib/osdGPU_d.lib &&
+				# tbb
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/tbb/lib/tbb_static.lib ${HARVEST_TARGET}/tbb/lib/tbb_debug.lib &&
+				# openvdb
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/openvdb/lib/openvdb.lib ${HARVEST_TARGET}/openvdb/lib/openvdb_d.lib &&
+				# python
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/python/ ${HARVEST_TARGET}/python/ &&
+				# alembic
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/alembic/lib/alembic.lib ${HARVEST_TARGET}/alembic/lib/alembic_d.lib &&
+				# hdf5
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/hdf5/lib ${HARVEST_TARGET}/hdf5/lib &&
+				# numpy
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}_numpy_${NUMPY_SHORT_VERSION}d.tar.gz ${HARVEST_TARGET}/Release/python${PYTHON_SHORT_VERSION_NO_DOTS}_numpy_${NUMPY_SHORT_VERSION}d.tar.gz &&
+				# python
+				${CMAKE_COMMAND} -E copy ${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}_d.tar.gz ${HARVEST_TARGET}/Release/python${PYTHON_SHORT_VERSION_NO_DOTS}_d.tar.gz
+		DEPENDS Package_Python
+)
+endif(BUILD_MODE STREQUAL Debug)
+
+else(WIN32)
+
+function(harvest from to)
+	set(pattern "")
+	foreach(f ${ARGN})
+		set(pattern ${f})
+	endforeach()
+
+	if(pattern STREQUAL "")
+		get_filename_component(dirpath ${to} DIRECTORY)
+		get_filename_component(filename ${to} NAME)
+		install(
+			FILES ${LIBDIR}/${from}
+			DESTINATION ${HARVEST_TARGET}/${dirpath}
+			RENAME ${filename})
+	else()
+		install(
+			DIRECTORY ${LIBDIR}/${from}/
+			DESTINATION ${HARVEST_TARGET}/${to}
+			USE_SOURCE_PERMISSIONS
+			FILES_MATCHING PATTERN ${pattern}
+			PATTERN "pkgconfig" EXCLUDE
+			PATTERN "cmake" EXCLUDE
+			PATTERN "clang" EXCLUDE
+			PATTERN "__pycache__" EXCLUDE
+			PATTERN "tests" EXCLUDE)
+	endif()
+endfunction()
+
+harvest(alembic/include alembic/include "*.h")
+harvest(alembic/lib/libAlembic.a alembic/lib/libAlembic.a)
+harvest(alembic/bin alembic/bin "*")
+harvest(blosc/lib openvdb/lib "*.a")
+harvest(boost/include boost/include "*")
+harvest(boost/lib boost/lib "*.a")
+harvest(ffmpeg/include ffmpeg/include "*.h")
+harvest(ffmpeg/lib ffmpeg/lib "*.a")
+harvest(fftw3/include fftw3/include "*.h")
+harvest(fftw3/lib fftw3/lib "*.a")
+harvest(flac/lib sndfile/lib "libFLAC.a")
+harvest(freetype/include freetype/include "*.h")
+harvest(freetype/lib/libfreetype2ST.a freetype/lib/libfreetype.a)
+harvest(glew/include glew/include "*.h")
+harvest(glew/lib glew/lib "*.a")
+harvest(ilmbase openexr "*")
+harvest(ilmbase/include openexr/include "*.h")
+harvest(jemalloc/include jemalloc/include "*.h")
+harvest(jemalloc/lib jemalloc/lib "*.a")
+harvest(jpg/include jpeg/include "*.h")
+harvest(jpg/lib jpeg/lib "libjpeg.a")
+harvest(lame/lib ffmpeg/lib "*.a")
+harvest(llvm/bin llvm/bin "llvm-config")
+harvest(llvm/lib llvm/lib "libLLVM*.a")
+harvest(ogg/lib ffmpeg/lib "*.a")
+harvest(openal/include openal/include "*.h")
+if(UNIX AND NOT APPLE)
+	harvest(openal/lib openal/lib "*.a")
+endif()
+harvest(opencollada/include/opencollada opencollada/include "*.h")
+harvest(opencollada/lib/opencollada opencollada/lib "*.a")
+harvest(opencolorio/include opencolorio/include "*.h")
+harvest(opencolorio/lib opencolorio/lib "*.a")
+harvest(openexr/include openexr/include "*.h")
+harvest(openexr/lib openexr/lib "*.a")
+harvest(openimageio/bin openimageio/bin "idiff")
+harvest(openimageio/bin openimageio/bin "maketx")
+harvest(openimageio/bin openimageio/bin "oiiotool")
+harvest(openimageio/include openimageio/include "*")
+harvest(openimageio/lib openimageio/lib "*.a")
+harvest(openjpeg/include/openjpeg-1.5 openjpeg/include "*.h")
+harvest(openjpeg/lib openjpeg/lib "*.a")
+harvest(opensubdiv/include opensubdiv/include "*.h")
+harvest(opensubdiv/lib opensubdiv/lib "*.a")
+harvest(openvdb/include/openvdb/openvdb openvdb/include/openvdb "*.h")
+harvest(openvdb/lib openvdb/lib "*.a")
+harvest(orc/lib/liborc-0.4.a ffmpeg/lib/liborc.a)
+harvest(osl/bin osl/bin "oslc")
+harvest(osl/include osl/include "*.h")
+harvest(osl/lib osl/lib "*.a")
+harvest(osl/shaders osl/shaders "*.h")
+harvest(png/include png/include "*.h")
+harvest(png/lib png/lib "*.a")
+harvest(python/bin python/bin "python${PYTHON_SHORT_VERSION}m")
+harvest(python/include python/include "*h")
+harvest(python/lib python/lib "*")
+harvest(schroedinger/lib/libschroedinger-1.0.a ffmpeg/lib/libschroedinger.a)
+harvest(sdl/include/SDL2 sdl/include "*.h")
+harvest(sdl/lib sdl/lib "libSDL2.a")
+harvest(sndfile/include sndfile/include "*.h")
+harvest(sndfile/lib sndfile/lib "*.a")
+harvest(spnav/include spnav/include "*.h")
+harvest(spnav/lib spnav/lib "*.a")
+harvest(tbb/include tbb/include "*.h")
+harvest(tbb/lib/libtbb_static.a tbb/lib/libtbb.a)
+harvest(theora/lib ffmpeg/lib "*.a")
+harvest(tiff/include tiff/include "*.h")
+harvest(tiff/lib tiff/lib "*.a")
+harvest(vorbis/lib ffmpeg/lib "*.a")
+harvest(vpx/lib ffmpeg/lib "*.a")
+harvest(webp/lib ffmpeg/lib "*.a")
+harvest(x264/lib ffmpeg/lib "*.a")
+harvest(xml2/lib opencollada/lib "*.a")
+harvest(xvidcore/lib ffmpeg/lib "*.a")
+
+endif(WIN32)
diff --git a/build_files/build_environment/cmake/hdf5.cmake b/build_files/build_environment/cmake/hdf5.cmake
new file mode 100644
index 00000000000..09d40d0605f
--- /dev/null
+++ b/build_files/build_environment/cmake/hdf5.cmake
@@ -0,0 +1,42 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(HDF5_EXTRA_ARGS
+	-DHDF5_ENABLE_THREADSAFE=Off
+	-DHDF5_BUILD_CPP_LIB=Off
+	-DBUILD_TESTING=Off
+	-DHDF5_BUILD_TOOLS=Off
+	-DHDF5_BUILD_EXAMPLES=Off
+	-DHDF5_BUILD_HL_LIB=On
+	-DBUILD_STATIC_CRT_LIBS=On
+	-DBUILD_SHARED_LIBS=On
+)
+
+if(WIN32)
+	set(HDF5_PATCH ${PATCH_CMD} --verbose -p 0 -d ${BUILD_DIR}/hdf5/src/external_hdf5 < ${PATCH_DIR}/hdf5.diff)
+endif()
+
+ExternalProject_Add(external_hdf5
+  URL ${HDF5_URI}
+  DOWNLOAD_DIR ${DOWNLOAD_DIR}
+  URL_HASH MD5=${HDF5_HASH}
+  PREFIX ${BUILD_DIR}/hdf5
+  PATCH_COMMAND ${HDF5_PATCH}
+  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/hdf5 ${HDF5_EXTRA_ARGS}
+  INSTALL_DIR ${LIBDIR}/hdf5
+)
diff --git a/build_files/build_environment/cmake/hidapi.cmake b/build_files/build_environment/cmake/hidapi.cmake
new file mode 100644
index 00000000000..cfa4cc53d2d
--- /dev/null
+++ b/build_files/build_environment/cmake/hidapi.cmake
@@ -0,0 +1,29 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(HIDAPI_EXTRA_ARGS)
+
+ExternalProject_Add(external_hidapi
+	URL ${HIDAPI_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${HIDAPI_HASH}
+	PREFIX ${BUILD_DIR}/hidapi
+	PATCH_COMMAND COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_hidapi.txt	${BUILD_DIR}/hidapi/src/external_hidapi/cmakelists.txt && ${PATCH_CMD} -p 0 -d ${BUILD_DIR}/hidapi/src/external_hidapi < ${PATCH_DIR}/hidapi.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/hidapi -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${HIDAPI_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/hidapi
+)
diff --git a/build_files/build_environment/cmake/iconv.cmake b/build_files/build_environment/cmake/iconv.cmake
new file mode 100644
index 00000000000..cd6cf9547df
--- /dev/null
+++ b/build_files/build_environment/cmake/iconv.cmake
@@ -0,0 +1,34 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(ICONV_EXTRA_ARGS)
+
+ExternalProject_Add(external_iconv
+	URL ${ICONV_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${ICONV_HASH}
+	PREFIX ${BUILD_DIR}/iconv
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/iconv/src/external_iconv/ && ${CONFIGURE_COMMAND} --enable-static --prefix=${mingw_LIBDIR}/iconv
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/iconv/src/external_iconv/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/iconv/src/external_iconv/ && make install
+	INSTALL_DIR ${LIBDIR}/iconv
+)
+
+if(MSVC)
+	set_target_properties(external_iconv PROPERTIES FOLDER Mingw)
+endif()
diff --git a/build_files/build_environment/cmake/ilmbase.cmake b/build_files/build_environment/cmake/ilmbase.cmake
new file mode 100644
index 00000000000..0639848346f
--- /dev/null
+++ b/build_files/build_environment/cmake/ilmbase.cmake
@@ -0,0 +1,35 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(WIN32)
+	set(ILMBASE_CMAKE_CXX_STANDARD_LIBRARIES "kernel32${LIBEXT} user32${LIBEXT} gdi32${LIBEXT} winspool${LIBEXT} shell32${LIBEXT} ole32${LIBEXT} oleaut32${LIBEXT} uuid${LIBEXT} comdlg32${LIBEXT} advapi32${LIBEXT} psapi${LIBEXT}")
+endif()
+
+set(ILMBASE_EXTRA_ARGS
+	-DBUILD_SHARED_LIBS=OFF
+	-DCMAKE_CXX_STANDARD_LIBRARIES=${ILMBASE_CMAKE_CXX_STANDARD_LIBRARIES}
+)
+
+ExternalProject_Add(external_ilmbase
+	URL ${ILMBASE_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${ILMBASE_HASH}
+	PREFIX ${BUILD_DIR}/ilmbase
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/ilmbase ${DEFAULT_CMAKE_FLAGS} ${ILMBASE_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/openexr
+)
diff --git a/build_files/build_environment/cmake/jemalloc.cmake b/build_files/build_environment/cmake/jemalloc.cmake
new file mode 100644
index 00000000000..c39ba448917
--- /dev/null
+++ b/build_files/build_environment/cmake/jemalloc.cmake
@@ -0,0 +1,28 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+ExternalProject_Add(external_jemalloc
+	URL ${JEMALLOC_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${JEMALLOC_HASH}
+	PREFIX ${BUILD_DIR}/jemalloc
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/jemalloc/src/external_jemalloc/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/jemalloc --disable-shared --enable-static --with-pic
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/jemalloc/src/external_jemalloc/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/jemalloc/src/external_jemalloc/ && make install
+	INSTALL_DIR ${LIBDIR}/jemalloc
+)
diff --git a/build_files/build_environment/cmake/jpeg.cmake b/build_files/build_environment/cmake/jpeg.cmake
new file mode 100644
index 00000000000..1f2b04387f0
--- /dev/null
+++ b/build_files/build_environment/cmake/jpeg.cmake
@@ -0,0 +1,65 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(WIN32)
+	# cmake for windows
+	set(JPEG_EXTRA_ARGS  -DWITH_JPEG8=ON  -DCMAKE_DEBUG_POSTFIX=d)
+
+	ExternalProject_Add(external_jpeg
+		URL ${JPEG_URI}
+		DOWNLOAD_DIR ${DOWNLOAD_DIR}
+		URL_HASH MD5=${JPEG_HASH}
+		PREFIX ${BUILD_DIR}/jpg
+		CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/jpg ${DEFAULT_CMAKE_FLAGS} ${JPEG_EXTRA_ARGS}
+		INSTALL_DIR ${LIBDIR}/jpg
+	)
+
+	if(BUILD_MODE STREQUAL Debug)
+		ExternalProject_Add_Step(external_jpeg after_install
+			COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/jpg/lib/jpegd${LIBEXT}  ${LIBDIR}/jpg/lib/jpeg${LIBEXT}
+			DEPENDEES install
+		)
+	endif()
+
+	if(BUILD_MODE STREQUAL Release)
+		set(JPEG_LIBRARY jpeg-static${LIBEXT})
+	else()
+		set(JPEG_LIBRARY jpeg-staticd${LIBEXT})
+	endif()
+else(WIN32)
+	# autoconf for unix
+	if(APPLE)
+		set(JPEG_EXTRA_ARGS --host x86_64-apple-darwin --with-jpeg8)
+	else()
+		set(JPEG_EXTRA_ARGS --with-jpeg8)
+	endif()
+
+	ExternalProject_Add(external_jpeg
+		URL ${JPEG_URI}
+		DOWNLOAD_DIR ${DOWNLOAD_DIR}
+		URL_HASH MD5=${JPEG_HASH}
+		CONFIGURE_COMMAND ${CONFIGURE_ENV} && autoreconf -fiv && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/jpg NASM=yasm ${JPEG_EXTRA_ARGS}
+		BUILD_IN_SOURCE 1
+		BUILD_COMMAND ${CONFIGURE_ENV} && make install
+		PREFIX ${BUILD_DIR}/jpg
+		CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/jpg ${DEFAULT_CMAKE_FLAGS} ${JPEG_EXTRA_ARGS}
+		INSTALL_DIR ${LIBDIR}/jpg
+	)
+
+	set(JPEG_LIBRARY libjpeg${LIBEXT})
+endif(WIN32)
diff --git a/build_files/build_environment/cmake/lame.cmake b/build_files/build_environment/cmake/lame.cmake
new file mode 100644
index 00000000000..a489b2302ce
--- /dev/null
+++ b/build_files/build_environment/cmake/lame.cmake
@@ -0,0 +1,47 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(LAME_EXTRA_ARGS)
+if(MSVC)
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "4")
+	set(LAME_EXTRA_ARGS CFLAGS=-msse)
+	endif()
+endif()
+
+ExternalProject_Add(external_lame
+	URL ${LAME_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${LAME_HASH}
+	PREFIX ${BUILD_DIR}/lame
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lame/src/external_lame/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/lame --disable-shared --enable-static ${LAME_EXTRA_ARGS}
+		--enable-export=full
+		--with-fileio=sndfile
+		--without-vorbis
+		--with-pic
+		--disable-mp3x
+		--disable-mp3rtp
+		--disable-gtktest
+		--enable-export=full
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lame/src/external_lame/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lame/src/external_lame/ && make install
+	INSTALL_DIR ${LIBDIR}/lame
+)
+
+if(MSVC)
+	set_target_properties(external_lame PROPERTIES FOLDER Mingw)
+endif()
diff --git a/build_files/build_environment/cmake/lapack.cmake b/build_files/build_environment/cmake/lapack.cmake
new file mode 100644
index 00000000000..3110503db52
--- /dev/null
+++ b/build_files/build_environment/cmake/lapack.cmake
@@ -0,0 +1,43 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(LAPACK_EXTRA_ARGS)
+
+if(WIN32)
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+		set(LAPACK_EXTRA_ARGS -G "MSYS Makefiles" -DCMAKE_Fortran_COMPILER=${DOWNLOAD_DIR}/mingw/mingw64/bin/gfortran.exe)
+	else()
+		set(LAPACK_EXTRA_ARGS -G "MSYS Makefiles" -DCMAKE_Fortran_COMPILER=${DOWNLOAD_DIR}/mingw/mingw32/bin/gfortran.exe)
+	endif()
+endif()
+
+ExternalProject_Add(external_lapack
+	URL ${LAPACK_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${LAPACK_HASH}
+	PREFIX ${BUILD_DIR}/lapack
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lapack/src/external_lapack/ && ${CMAKE_COMMAND} ${LAPACK_EXTRA_ARGS} -DBUILD_TESTING=Off -DCMAKE_INSTALL_PREFIX=${LIBDIR}/lapack .
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lapack/src/external_lapack/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/lapack/src/external_lapack/ && make install
+
+	INSTALL_DIR ${LIBDIR}/lapack
+)
+
+if(MSVC)
+	set_target_properties(external_lapack PROPERTIES FOLDER Mingw)
+endif()
diff --git a/build_files/build_environment/cmake/llvm.cmake b/build_files/build_environment/cmake/llvm.cmake
new file mode 100644
index 00000000000..f04fe609cb3
--- /dev/null
+++ b/build_files/build_environment/cmake/llvm.cmake
@@ -0,0 +1,61 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(LLVM_EXTRA_ARGS
+	-DLLVM_USE_CRT_RELEASE=MT
+	-DLLVM_USE_CRT_DEBUG=MTd
+	-DLLVM_INCLUDE_TESTS=OFF
+	-DLLVM_TARGETS_TO_BUILD=X86
+	-DLLVM_INCLUDE_EXAMPLES=OFF
+	-DLLVM_ENABLE_TERMINFO=OFF
+)
+
+if(WIN32)
+	set(LLVM_GENERATOR "NMake Makefiles")
+else()
+	set(LLVM_GENERATOR "Unix Makefiles")
+endif()
+
+# short project name due to long filename issues on windows
+ExternalProject_Add(ll
+	URL ${LLVM_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${LLVM_HASH}
+	CMAKE_GENERATOR ${LLVM_GENERATOR}
+	PREFIX ${BUILD_DIR}/ll
+	PATCH_COMMAND ${PATCH_CMD} -p 0 -d ${BUILD_DIR}/ll/src/ll < ${PATCH_DIR}/llvm-alloca-fix.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/llvm ${DEFAULT_CMAKE_FLAGS} ${LLVM_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/llvm
+)
+
+if (MSVC)
+	if (BUILD_MODE STREQUAL Release)
+		set(LLVM_HARVEST_COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/llvm/ ${HARVEST_TARGET}/llvm/ )
+	else()
+		set(LLVM_HARVEST_COMMAND
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/llvm/lib/ ${HARVEST_TARGET}/llvm/debug/lib/ &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/llvm/bin/ ${HARVEST_TARGET}/llvm/debug/bin/ &&
+				${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/llvm/include/ ${HARVEST_TARGET}/llvm/debug/include/ 
+			)
+	endif()
+	ExternalProject_Add_Step(ll after_install
+		COMMAND ${LLVM_HARVEST_COMMAND}
+		DEPENDEES mkdir update patch download configure build install
+	)
+endif()
+
diff --git a/build_files/build_environment/cmake/numpy.cmake b/build_files/build_environment/cmake/numpy.cmake
new file mode 100644
index 00000000000..107947dabd3
--- /dev/null
+++ b/build_files/build_environment/cmake/numpy.cmake
@@ -0,0 +1,57 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(MSVC)
+	if(BUILD_MODE STREQUAL Debug)
+		set(NUMPY_DIR_POSTFIX -pydebug)
+		set(NUMPY_ARCHIVE_POSTFIX d)
+		set(NUMPY_BUILD_OPTION --debug)
+	else()
+		set(NUMPY_DIR_POSTFIX)
+		set(NUMPY_ARCHIVE_POSTFIX)
+		set(NUMPY_BUILD_OPTION)
+	endif(BUILD_MODE STREQUAL Debug)
+endif()
+
+set(NUMPY_POSTFIX)
+
+if(WIN32)
+	set(NUMPY_INSTALL
+		${CMAKE_COMMAND} -E copy_directory "${BUILD_DIR}/python/src/external_python/run/lib/site-packages/numpy/core/include/numpy" "${LIBDIR}/python/include/python${PYTHON_SHORT_VERSION}/numpy" &&
+		${CMAKE_COMMAND} -E chdir "${BUILD_DIR}/numpy/src/external_numpy/build/lib.${PYTHON_ARCH2}-${PYTHON_SHORT_VERSION}${NUMPY_DIR_POSTFIX}" 
+		${CMAKE_COMMAND} -E tar "cfvz" "${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}_numpy_${NUMPY_SHORT_VERSION}${NUMPY_ARCHIVE_POSTFIX}.tar.gz" "." 
+	)
+	set(NUMPY_PATCH ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/numpy/src/external_numpy < ${PATCH_DIR}/numpy.diff )
+else()
+	set(NUMPY_INSTALL echo .)
+	set(NUMPY_PATCH echo .)
+endif()
+
+ExternalProject_Add(external_numpy
+	URL ${NUMPY_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${NUMPY_HASH}
+	PREFIX ${BUILD_DIR}/numpy
+	PATCH_COMMAND ${NUMPY_PATCH}
+	CONFIGURE_COMMAND ""
+	LOG_BUILD 1
+	BUILD_COMMAND ${PYTHON_BINARY} ${BUILD_DIR}/numpy/src/external_numpy/setup.py build ${NUMPY_BUILD_OPTION} install --old-and-unmanageable
+	INSTALL_COMMAND ${NUMPY_INSTALL}
+)
+
+add_dependencies(external_numpy Make_Python_Environment)
diff --git a/build_files/build_environment/cmake/ogg.cmake b/build_files/build_environment/cmake/ogg.cmake
new file mode 100644
index 00000000000..1f69cee0996
--- /dev/null
+++ b/build_files/build_environment/cmake/ogg.cmake
@@ -0,0 +1,32 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+ExternalProject_Add(external_ogg
+	URL ${OGG_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${OGG_HASH}
+	PREFIX ${BUILD_DIR}/ogg
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ogg/src/external_ogg/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/ogg --disable-shared --enable-static
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ogg/src/external_ogg/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/ogg/src/external_ogg/ && make install
+	INSTALL_DIR ${LIBDIR}/ogg
+)
+
+if(MSVC)
+	set_target_properties(external_ogg PROPERTIES FOLDER Mingw)
+endif()
diff --git a/build_files/build_environment/cmake/openal.cmake b/build_files/build_environment/cmake/openal.cmake
new file mode 100644
index 00000000000..d63c4443ca0
--- /dev/null
+++ b/build_files/build_environment/cmake/openal.cmake
@@ -0,0 +1,42 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(BUILD_MODE STREQUAL Release)
+	set(OPENAL_EXTRA_ARGS
+		-DALSOFT_UTILS=Off
+		-DALSOFT_NO_CONFIG_UTIL=On
+		-DALSOFT_EXAMPLES=Off
+		-DALSOFT_TESTS=Off
+		-DALSOFT_CONFIG=Off
+		-DALSOFT_HRTF_DEFS=Off
+		-DALSOFT_INSTALL=On
+	)
+
+	if(UNIX)
+		set(OPENAL_EXTRA_ARGS ${OPENAL_EXTRA_ARGS} -DLIBTYPE=STATIC)
+	endif()
+
+	ExternalProject_Add(external_openal
+		URL ${OPENAL_URI}
+		DOWNLOAD_DIR ${DOWNLOAD_DIR}
+		URL_HASH MD5=${OPENAL_HASH}
+		PREFIX ${BUILD_DIR}/openal
+		CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openal ${DEFAULT_CMAKE_FLAGS} ${OPENAL_EXTRA_ARGS}
+		INSTALL_DIR ${LIBDIR}/openal
+	)
+endif()
diff --git a/build_files/build_environment/cmake/opencollada.cmake b/build_files/build_environment/cmake/opencollada.cmake
new file mode 100644
index 00000000000..9b2a2d9dc4d
--- /dev/null
+++ b/build_files/build_environment/cmake/opencollada.cmake
@@ -0,0 +1,37 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(UNIX AND NOT APPLE)
+	set(OPENCOLLADA_EXTRA_ARGS
+		-DLIBXML2_INCLUDE_DIR=${LIBDIR}/xml2/include/libxml2
+		-DLIBXML2_LIBRARIES=${LIBDIR}/xml2/lib/libxml2.a)
+endif()
+
+ExternalProject_Add(external_opencollada
+	URL ${OPENCOLLADA_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${OPENCOLLADA_HASH}
+	PREFIX ${BUILD_DIR}/opencollada
+	PATCH_COMMAND ${PATCH_CMD} -p 1 -N -d ${BUILD_DIR}/opencollada/src/external_opencollada < ${PATCH_DIR}/opencollada.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/opencollada ${DEFAULT_CMAKE_FLAGS} ${OPENCOLLADA_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/opencollada
+)
+
+if(UNIX AND NOT APPLE)
+	add_dependencies(external_opencollada external_xml2)
+endif()
diff --git a/build_files/build_environment/cmake/opencolorio.cmake b/build_files/build_environment/cmake/opencolorio.cmake
new file mode 100644
index 00000000000..14fb62af672
--- /dev/null
+++ b/build_files/build_environment/cmake/opencolorio.cmake
@@ -0,0 +1,70 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(OPENCOLORIO_EXTRA_ARGS
+	-DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
+	-DBoost_USE_MULTITHREADED=ON
+	-DBoost_USE_STATIC_LIBS=ON
+	-DBoost_USE_STATIC_RUNTIME=ON
+	-DBOOST_ROOT=${LIBDIR}/boost
+	-DBOOST_INCLUDEDIR=${LIBDIR}/boost/include/boost_1_60/boost
+	-DBoost_NO_SYSTEM_PATHS=ON
+	-DBoost_DEBUG=ON
+	-DBoost_MAJOR_VERSION=1
+	-DBoost_MINOR_VERSION=60
+	-DOCIO_BUILD_APPS=OFF
+	-DOCIO_BUILD_PYGLUE=OFF
+	-DOCIO_BUILD_NUKE=OFF
+)
+
+if(WIN32)
+	set(OPENCOLORIO_EXTRA_ARGS
+		${OPENCOLORIO_EXTRA_ARGS}
+		-DOCIO_USE_BOOST_PTR=ON
+		-DOCIO_BUILD_STATIC=OFF
+		-DOCIO_BUILD_SHARED=ON
+	)
+else()
+	set(OPENCOLORIO_EXTRA_ARGS
+		${OPENCOLORIO_EXTRA_ARGS}
+		-DOCIO_USE_BOOST_PTR=OFF
+		-DOCIO_BUILD_STATIC=ON
+		-DOCIO_BUILD_SHARED=OFF
+	)
+endif()
+
+ExternalProject_Add(external_opencolorio
+	URL ${OPENCOLORIO_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${OPENCOLORIO_HASH}
+	PREFIX ${BUILD_DIR}/opencolorio
+	PATCH_COMMAND ${PATCH_CMD} -p 0 -N -d ${BUILD_DIR}/opencolorio/src/external_opencolorio < ${PATCH_DIR}/opencolorio.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/opencolorio ${DEFAULT_CMAKE_FLAGS} ${OPENCOLORIO_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/opencolorio
+)
+
+if(NOT WIN32)
+	add_custom_command(
+		OUTPUT ${LIBDIR}/opencolorio/lib/libtinyxml.a
+		COMMAND cp ${BUILD_DIR}/opencolorio/src/external_opencolorio-build/ext/dist/lib/libtinyxml.a ${LIBDIR}/opencolorio/lib/libtinyxml.a
+		COMMAND cp ${BUILD_DIR}/opencolorio/src/external_opencolorio-build/ext/dist/lib/libyaml-cpp.a ${LIBDIR}/opencolorio/lib/libyaml-cpp.a
+	)
+	add_custom_target(external_opencolorio_extra ALL DEPENDS external_opencolorio ${LIBDIR}/opencolorio/lib/libtinyxml.a)
+endif()
+
+add_dependencies(external_opencolorio external_boost)
diff --git a/build_files/build_environment/cmake/openexr.cmake b/build_files/build_environment/cmake/openexr.cmake
new file mode 100644
index 00000000000..53a1bc4c146
--- /dev/null
+++ b/build_files/build_environment/cmake/openexr.cmake
@@ -0,0 +1,41 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(WIN32)
+	set(OPENEXR_CMAKE_CXX_STANDARD_LIBRARIES "kernel32${LIBEXT} user32${LIBEXT} gdi32${LIBEXT} winspool${LIBEXT} shell32${LIBEXT} ole32${LIBEXT} oleaut32${LIBEXT} uuid${LIBEXT} comdlg32${LIBEXT} advapi32${LIBEXT} psapi${LIBEXT}")
+endif()
+
+set(OPENEXR_EXTRA_ARGS
+	-DBUILD_SHARED_LIBS=OFF
+	-DCMAKE_CXX_STANDARD_LIBRARIES=${OPENEXR_CMAKE_CXX_STANDARD_LIBRARIES}
+	-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+	-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+	-DILMBASE_PACKAGE_PREFIX=${LIBDIR}/ilmbase
+)
+
+ExternalProject_Add(external_openexr
+	URL ${OPENEXR_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${OPENEXR_HASH}
+	PREFIX ${BUILD_DIR}/openexr
+	PATCH_COMMAND ${PATCH_CMD} -p 0 -d ${BUILD_DIR}/openexr/src/external_openexr < ${PATCH_DIR}/openexr.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openexr ${DEFAULT_CMAKE_FLAGS} ${OPENEXR_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/openexr
+)
+
+add_dependencies(external_openexr external_zlib external_ilmbase)
diff --git a/build_files/build_environment/cmake/openimageio.cmake b/build_files/build_environment/cmake/openimageio.cmake
new file mode 100644
index 00000000000..96b221388da
--- /dev/null
+++ b/build_files/build_environment/cmake/openimageio.cmake
@@ -0,0 +1,132 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(BUILD_MODE STREQUAL Release)
+	set(OIIO_TOOLS ON)
+else()
+	set(OIIO_TOOLS OFF)
+endif()
+
+if(UNIX AND NOT APPLE)
+	# This causes linking to static pthread libraries which gives link errors.
+	# Since we manually specify library paths it should static link other libs.
+	set(OPENIMAGEIO_LINKSTATIC -DLINKSTATIC=OFF)
+else()
+	set(OPENIMAGEIO_LINKSTATIC -DLINKSTATIC=ON)
+endif()
+
+if(WIN32)
+	set(PNG_LIBNAME libpng16_static${LIBEXT})
+	set(OIIO_SIMD_FLAGS -DUSE_SIMD=sse2 -DOPJ_STATIC=1)
+	set(OPENJPEG_POSTFIX _msvc)
+else()
+	set(PNG_LIBNAME libpng${LIBEXT})
+	set(OIIO_SIMD_FLAGS)
+endif()
+
+if (WITH_WEBP)
+	set(WEBP_ARGS	-DWEBP_INCLUDE_DIR=${LIBDIR}/webp/include
+					-DWEBP_LIBRARY=${LIBDIR}/webp/lib/${LIBPREFIX}webp${LIBEXT} )
+	set(WEBP_DEP external_webp)
+endif() 
+
+if (MSVC)
+set(OPENJPEG_FLAGS -DOPENJPEG_HOME=${LIBDIR}/openjpeg_msvc
+				   -DOPENJPEG_INCLUDE_DIR=${LIBDIR}/openjpeg_msvc/include/openjpeg-${OPENJPEG_SHORT_VERSION}
+				   -DOPENJPEG_LIBRARY=${LIBDIR}/openjpeg_msvc/lib/openjpeg${LIBEXT}
+				   -DOPENJPEG_LIBRARY_DEBUG=${LIBDIR}/openjpeg_msvc/lib/openjpeg${LIBEXT}
+   )
+else()
+set(OPENJPEG_FLAGS 	-DOPENJPEG_INCLUDE_DIR=${LIBDIR}/openjpeg/include/openjpeg-${OPENJPEG_SHORT_VERSION}
+					-DOPENJPEG_LIBRARY=${LIBDIR}/openjpeg/lib/${OPENJPEG_LIBRARY}
+	)
+endif()
+
+set(OPENIMAGEIO_EXTRA_ARGS
+	-DBUILDSTATIC=ON
+	${OPENIMAGEIO_LINKSTATIC}
+	-DOPENEXR_INCLUDE_DIR=${LIBDIR}/openexr/include/openexr/
+	-DOPENEXR_ILMIMF_LIBRARIES=${LIBDIR}/openexr/lib/IlmImf-2_2${LIBEXT}
+	-DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
+	-DBoost_USE_MULTITHREADED=ON
+	-DBoost_USE_STATIC_LIBS=ON
+	-DBoost_USE_STATIC_RUNTIME=ON
+	-DBOOST_ROOT=${LIBDIR}/boost
+	-DBOOST_LIBRARYDIR=${LIBDIR}/boost/lib/
+	-DBoost_NO_SYSTEM_PATHS=ON
+	-OIIO_BUILD_CPP11=ON
+	-DUSE_OPENGL=OFF
+	-DUSE_TBB=OFF
+	-DUSE_FIELD3D=OFF
+	-DUSE_QT=OFF
+	-DUSE_PYTHON=OFF
+	-DUSE_GIF=OFF
+	-DUSE_OPENCV=OFF
+	-DUSE_OPENSSL=OFF
+	-DUSE_OPENJPEG=ON
+	-DUSE_FFMPEG=OFF
+	-DUSE_PTEX=OFF
+	-DUSE_FREETYPE=OFF
+	-DUSE_LIBRAW=OFF
+	-DUSE_PYTHON=OFF
+	-DUSE_PYTHON3=OFF
+	-DUSE_OCIO=OFF
+	-DOIIO_BUILD_TOOLS=${OIIO_TOOLS}
+	-DOIIO_BUILD_TESTS=OFF
+	-DBUILD_TESTING=OFF
+	-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+	-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include
+	-DPNG_LIBRARY=${LIBDIR}/png/lib/${PNG_LIBNAME}
+	-DPNG_PNG_INCLUDE_DIR=${LIBDIR}/png/include
+	-DTIFF_LIBRARY=${LIBDIR}/tiff/lib/${LIBPREFIX}tiff${LIBEXT}
+	-DTIFF_INCLUDE_DIR=${LIBDIR}/tiff/include
+	-DJPEG_LIBRARY=${LIBDIR}/jpg/lib/${JPEG_LIBRARY}
+	-DJPEG_INCLUDE_DIR=${LIBDIR}/jpg/include
+	${OPENJPEG_FLAGS}
+	-DOCIO_PATH=${LIBDIR}/opencolorio/
+	-DOpenEXR_USE_STATIC_LIBS=On
+	-DOPENEXR_HOME=${LIBDIR}/openexr/
+	-DILMBASE_INCLUDE_PATH=${LIBDIR}/ilmbase/
+	-DILMBASE_PACKAGE_PREFIX=${LIBDIR}/ilmbase/
+	-DILMBASE_INCLUDE_DIR=${LIBDIR}/ilmbase/include/
+	-DOPENEXR_HALF_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Half${LIBEXT}
+	-DOPENEXR_IMATH_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Imath-2_2${LIBEXT}
+	-DOPENEXR_ILMTHREAD_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}IlmThread-2_2${LIBEXT}
+	-DOPENEXR_IEX_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Iex-2_2${LIBEXT}
+	-DOPENEXR_INCLUDE_DIR=${LIBDIR}/openexr/include/
+	-DOPENEXR_ILMIMF_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf-2_2${LIBEXT}
+	-DSTOP_ON_WARNING=OFF
+	${WEBP_FLAGS}
+	${OIIO_SIMD_FLAGS}
+)
+
+ExternalProject_Add(external_openimageio
+	URL ${OPENIMAGEIO_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${OPENIMAGEIO_HASH}
+	PREFIX ${BUILD_DIR}/openimageio
+	PATCH_COMMAND ${PATCH_CMD} -p 0 -N -d ${BUILD_DIR}/openimageio/src/external_openimageio/src/include < ${PATCH_DIR}/openimageio_gdi.diff &&
+				${PATCH_CMD} -p 0 -N -d ${BUILD_DIR}/openimageio/src/external_openimageio/ < ${PATCH_DIR}/openimageio_staticexr.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openimageio ${DEFAULT_CMAKE_FLAGS} ${OPENIMAGEIO_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/openimageio
+)
+
+add_dependencies(external_openimageio external_png external_zlib external_ilmbase external_openexr external_jpeg external_boost external_tiff external_opencolorio external_openjpeg${OPENJPEG_POSTFIX} ${WEBP_DEP})
+if(NOT WIN32)
+	add_dependencies(external_openimageio external_opencolorio_extra)
+endif()
diff --git a/build_files/build_environment/cmake/openjpeg.cmake b/build_files/build_environment/cmake/openjpeg.cmake
new file mode 100644
index 00000000000..406badf31fe
--- /dev/null
+++ b/build_files/build_environment/cmake/openjpeg.cmake
@@ -0,0 +1,57 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+# Note the encoder/decoder may use png/tiff/lcms system libraries, but the
+# library itself does not depend on them, so should give no problems.
+
+set(OPENJPEG_EXTRA_ARGS -DBUILD_SHARED_LIBS=OFF)
+
+if(WIN32)
+	set(OPENJPEG_EXTRA_ARGS -G "MSYS Makefiles")
+else()
+	set(OPENJPEG_EXTRA_ARGS ${DEFAULT_CMAKE_FLAGS})
+endif()
+
+ExternalProject_Add(external_openjpeg
+	URL ${OPENJPEG_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${OPENJPEG_HASH}
+	PREFIX ${BUILD_DIR}/openjpeg
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openjpeg/src/external_openjpeg-build && ${CMAKE_COMMAND} ${OPENJPEG_EXTRA_ARGS} -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openjpeg -DBUILD_SHARED_LIBS=Off -DBUILD_THIRDPARTY=OFF ${BUILD_DIR}/openjpeg/src/external_openjpeg
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openjpeg/src/external_openjpeg-build/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/openjpeg/src/external_openjpeg-build/ && make install
+	INSTALL_DIR ${LIBDIR}/openjpeg
+)
+
+#on windows ffmpeg wants a mingw build, while oiio needs a msvc build
+if (MSVC)
+	set(OPENJPEG_EXTRA_ARGS ${DEFAULT_CMAKE_FLAGS})
+ExternalProject_Add(external_openjpeg_msvc
+	URL ${OPENJPEG_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${OPENJPEG_HASH}
+	PREFIX ${BUILD_DIR}/openjpeg_msvc
+	CMAKE_ARGS ${OPENJPEG_EXTRA_ARGS} -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openjpeg_msvc -DBUILD_SHARED_LIBS=Off -DBUILD_THIRDPARTY=OFF 
+	INSTALL_DIR ${LIBDIR}/openjpeg_msvc
+)
+endif()
+
+	set(OPENJPEG_LIBRARY libopenjpeg${LIBEXT})
+if(MSVC)
+	set_target_properties(external_openjpeg PROPERTIES FOLDER Mingw)
+endif(MSVC)
diff --git a/build_files/build_environment/cmake/opensubdiv.cmake b/build_files/build_environment/cmake/opensubdiv.cmake
new file mode 100644
index 00000000000..5a3a4d142fa
--- /dev/null
+++ b/build_files/build_environment/cmake/opensubdiv.cmake
@@ -0,0 +1,71 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(OPENSUBDIV_EXTRA_ARGS
+	-DNO_EXAMPLES=ON
+	-DNO_REGRESSION=ON
+	-DNO_PYTHON=ON
+	-DNO_MAYA=ON
+	-DNO_PTEX=ON
+	-DNO_DOC=ON
+	-DNO_CLEW=OFF
+	-DNO_OPENCL=OFF
+	-DNO_TUTORIALS=ON
+	-DGLEW_INCLUDE_DIR=${LIBDIR}/glew/include
+	-DGLEW_LIBRARY=${LIBDIR}/glew/lib/libGLEW${LIBEXT}
+	-DGLFW_INCLUDE_DIR=${LIBDIR}/glfw/include
+	-DGLFW_LIBRARIES=${LIBDIR}/glfw/lib/glfw3${LIBEXT}
+)
+
+if(WIN32)
+	#no cuda support for vc15 yet
+	if(msvc15)
+		set(OPENSUBDIV_CUDA ON)
+	else()
+		set(OPENSUBDIV_CUDA ON)
+	endif()
+
+	set(OPENSUBDIV_EXTRA_ARGS
+		${OPENSUBDIV_EXTRA_ARGS}
+		-DNO_CUDA=${OPENSUBDIV_CUDA}
+		-DCLEW_INCLUDE_DIR=${LIBDIR}/clew/include/cl
+		-DCLEW_LIBRARY=${LIBDIR}/clew/lib/clew${LIBEXT}
+		-DCUEW_INCLUDE_DIR=${LIBDIR}/cuew/include
+		-DCUEW_LIBRARY=${LIBDIR}/cuew/lib/cuew${LIBEXT}
+		-DCMAKE_EXE_LINKER_FLAGS_RELEASE=libcmt.lib
+	)
+else()
+	set(OPENSUBDIV_EXTRA_ARGS
+		${OPENSUBDIV_EXTRA_ARGS}
+		-DNO_CUDA=ON
+		-DCUEW_INCLUDE_DIR=${LIBDIR}/cuew/include
+		-DCLEW_LIBRARY=${LIBDIR}/clew/lib/static/${LIBPREFIX}clew${LIBEXT}
+	)
+endif()
+
+ExternalProject_Add(external_opensubdiv
+	URL ${OPENSUBDIV_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${OPENSUBDIV_Hash}
+	PREFIX ${BUILD_DIR}/opensubdiv
+	PATCH_COMMAND ${PATCH_CMD} --verbose -p 1 -N -d ${BUILD_DIR}/opensubdiv/src/external_opensubdiv < ${PATCH_DIR}/opensubdiv.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/opensubdiv -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${OPENSUBDIV_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/opensubdiv
+)
+
+add_dependencies(external_opensubdiv external_glew external_glfw external_clew external_cuew)
diff --git a/build_files/build_environment/cmake/openvdb.cmake b/build_files/build_environment/cmake/openvdb.cmake
new file mode 100644
index 00000000000..a71598c1a3b
--- /dev/null
+++ b/build_files/build_environment/cmake/openvdb.cmake
@@ -0,0 +1,71 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(BUILD_MODE STREQUAL Debug)
+	set(BLOSC_POST _d)
+endif()
+
+set(OPENVDB_EXTRA_ARGS
+	-DILMBASE_HOME=${LIBDIR}/ilmbase/
+	-DILMBASE_CUSTOM=ON
+	-DILMBASE_CUSTOM_LIBRARIES=Half;Imath-2_2;IlmThread-2_2;Iex-2_2
+	-DILMBASE_INCLUDE_DIR=${LIBDIR}/ilmbase/include/
+	-DILMBASE_HALF_LIBRARIES=${LIBDIR}/ilmbase/lib/Half${LIBEXT}
+	-DILMBASE_IMATH_LIBRARIES=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Imath-2_2${LIBEXT}
+	-DILMBASE_ILMTHREAD_LIBRARIES=${LIBDIR}/ilmbase/lib/${LIBPREFIX}IlmThread-2_2${LIBEXT}
+	-DILMBASE_IEX_LIBRARIES=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Iex-2_2${LIBEXT}
+	-DOPENEXR_HOME=${LIBDIR}/openexr/
+	-DOPENEXR_USE_STATIC_LIBS=ON
+	-DOPENEXR_CUSTOM=ON
+	-DOPENEXR_CUSTOM_LIBRARY=IlmImf-2_2
+	-DOPENEXR_INCLUDE_DIR=${LIBDIR}/openexr/include/
+	-DOPENEXR_ILMIMF_LIBRARIES=${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf-2_2${LIBEXT}
+	-DTBB_ROOT_DIR=${LIBDIR}/tbb/
+	-DTBB_INCLUDE_DIRS=${LIBDIR}/tbb/include
+	-DTBB_LIBRARY=${LIBDIR}/tbb/lib/tbb_static${LIBEXT}
+	-DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
+	-DBoost_USE_MULTITHREADED=ON
+	-DBoost_USE_STATIC_LIBS=ON
+	-DBoost_USE_STATIC_RUNTIME=ON
+	-DBOOST_ROOT=${LIBDIR}/boost
+	-DBoost_NO_SYSTEM_PATHS=ON
+	-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+	-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+	-DWITH_BLOSC=ON
+	-DBLOSC_INCLUDE_DIR=${LIBDIR}/blosc/include/
+	-DBLOSC_LIBRARY=${LIBDIR}/blosc/lib/libblosc${BLOSC_POST}${LIBEXT}
+)
+
+set(OPENVDB_EXTRA_ARGS ${OPENVDB_EXTRA_ARGS})
+
+# CMake script for OpenVDB based on https://raw.githubusercontent.com/diekev/openvdb-cmake/master/CMakeLists.txt
+# can't be in external_openvdb because of how the includes are setup.
+
+ExternalProject_Add(openvdb
+	URL ${OPENVDB_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${OPENVDB_HASH}
+	PREFIX ${BUILD_DIR}/openvdb
+	PATCH_COMMAND COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_openvdb.txt  ${BUILD_DIR}/openvdb/src/openvdb/CMakeLists.txt &&
+						${CMAKE_COMMAND} -E copy_directory ${PATCH_DIR}/cmake/  ${BUILD_DIR}/openvdb/src/openvdb/cmake/ &&
+						${PATCH_CMD} --verbose -p 0 -N -d ${BUILD_DIR}/openvdb/src/openvdb < ${PATCH_DIR}/openvdb_vc2013.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openvdb ${DEFAULT_CMAKE_FLAGS} ${OPENVDB_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/openvdb
+)
+
+add_dependencies(openvdb external_tbb external_boost external_ilmbase external_openexr external_zlib external_blosc)
diff --git a/build_files/build_environment/cmake/options.cmake b/build_files/build_environment/cmake/options.cmake
new file mode 100644
index 00000000000..9979a682614
--- /dev/null
+++ b/build_files/build_environment/cmake/options.cmake
@@ -0,0 +1,210 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(WIN32)
+	option(ENABLE_MINGW64 "Enable building of ffmpeg/iconv/libsndfile/lapack/fftw3 by installing mingw64" ON)
+endif()
+option(WITH_WEBP "Enable building of oiio with webp support" OFF)
+set(MAKE_THREADS 1 CACHE STRING "Number of threads to run make with")
+
+if(NOT BUILD_MODE)
+	set(BUILD_MODE "Release")
+	message(STATUS "Build type not specified: defaulting to a release build.")
+endif()
+Message("BuildMode = ${BUILD_MODE}")
+
+if(BUILD_MODE STREQUAL "Debug")
+	set(LIBDIR ${CMAKE_CURRENT_BINARY_DIR}/Debug)
+ELSE(BUILD_MODE STREQUAL "Debug")
+	set(LIBDIR ${CMAKE_CURRENT_BINARY_DIR}/Release)
+ENDIF(BUILD_MODE STREQUAL "Debug")
+
+option(DOWNLOAD_DIR "Path for downloaded files" ${CMAKE_CURRENT_SOURCE_DIR}/downloads)
+file(TO_CMAKE_PATH ${DOWNLOAD_DIR} DOWNLOAD_DIR)
+set(PATCH_DIR ${CMAKE_CURRENT_SOURCE_DIR}/patches)
+set(BUILD_DIR ${CMAKE_CURRENT_BINARY_DIR}/build)
+
+message("LIBDIR = ${LIBDIR}")
+message("DOWNLOAD_DIR = ${DOWNLOAD_DIR}")
+message("PATCH_DIR = ${PATCH_DIR}")
+message("BUILD_DIR = ${BUILD_DIR}")
+
+if(WIN32)
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+		set(PATCH_CMD ${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/patch.exe)
+	else()
+		set(PATCH_CMD ${DOWNLOAD_DIR}/mingw/mingw32/msys/1.0/bin/patch.exe)
+	endif()
+	set(LIBEXT ".lib")
+	set(LIBPREFIX "")
+
+	# For OIIO and OSL
+	set(COMMON_DEFINES /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS)
+
+	# TODO FIXME highly MSVC specific
+	if(WITH_OPTIMIZED_DEBUG)
+		set(BLENDER_CMAKE_C_FLAGS_DEBUG "/MTd /O2 /Ob2 /DNDEBUG /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	else()
+		set(BLENDER_CMAKE_C_FLAGS_DEBUG "/MTd /Zi /Ob0 /Od /RTC1 /D_DEBUG /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	endif()
+	set(BLENDER_CMAKE_C_FLAGS_MINSIZEREL "/MT /O1 /Ob1 /D NDEBUG /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	set(BLENDER_CMAKE_C_FLAGS_RELEASE "/MT /O2 /Ob2 /DNDEBUG /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	set(BLENDER_CMAKE_C_FLAGS_RELWITHDEBINFO "/MT /Zi /O2 /Ob1 /D NDEBUG /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+
+	if(WITH_OPTIMIZED_DEBUG)
+		set(BLENDER_CMAKE_CXX_FLAGS_DEBUG "/MTd /O2 /Ob2 /D NDEBUG /D PLATFORM_WINDOWS /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	else()
+		set(BLENDER_CMAKE_CXX_FLAGS_DEBUG "/D_DEBUG /D PLATFORM_WINDOWS /MTd /Zi /Ob0 /Od /RTC1 /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	endif()
+	set(BLENDER_CMAKE_CXX_FLAGS_MINSIZEREL "/MT /O1 /Ob1 /D NDEBUG  /D PLATFORM_WINDOWS /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	set(BLENDER_CMAKE_CXX_FLAGS_RELEASE "/MT /O2 /Ob2 /D NDEBUG /D PLATFORM_WINDOWS /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+	set(BLENDER_CMAKE_CXX_FLAGS_RELWITHDEBINFO "/MT /Zi /O2 /Ob1 /D NDEBUG /D PLATFORM_WINDOWS /DPSAPI_VERSION=1 /DOIIO_STATIC_BUILD /DTINYFORMAT_ALLOW_WCHAR_STRINGS")
+
+	set(PLATFORM_FLAGS)
+	set(PLATFORM_CXX_FLAGS)
+	set(PLATFORM_CMAKE_FLAGS)
+
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+		set(MINGW_PATH ${DOWNLOAD_DIR}/mingw/mingw64)
+		set(MINGW_SHELL ming64sh.cmd)
+		set(PERL_SHELL ${DOWNLOAD_DIR}/perl/portableshell.bat)
+		set(MINGW_HOST x86_64-w64-mingw32)
+	else()
+		set(MINGW_PATH ${DOWNLOAD_DIR}/mingw/mingw32)
+		set(MINGW_SHELL ming32sh.cmd)
+		set(PERL_SHELL ${DOWNLOAD_DIR}/perl32/portableshell.bat)
+		set(MINGW_HOST i686-w64-mingw32)
+	endif()
+
+	set(CONFIGURE_ENV
+		cd ${MINGW_PATH} &&
+		call ${MINGW_SHELL} &&
+		call ${PERL_SHELL} &&
+		set path &&
+		set CFLAGS=-g &&
+		set LDFLAGS=-Wl,--as-needed -static-libgcc
+	)
+
+	set(CONFIGURE_ENV_NO_PERL
+		cd ${MINGW_PATH} &&
+		call ${MINGW_SHELL} &&
+		set path &&
+		set CFLAGS=-g &&
+		set LDFLAGS=-Wl,--as-needed -static-libgcc
+	)
+
+	set(CONFIGURE_COMMAND sh ./configure)
+	set(CONFIGURE_COMMAND_NO_TARGET ${CONFIGURE_COMMAND})
+else()
+	set(PATCH_CMD patch)
+	set(LIBEXT ".a")
+	set(LIBPREFIX "lib")
+
+	if(APPLE)
+# Let's get the current Xcode dir, to support xcode-select
+  	    	execute_process(
+			COMMAND xcode-select --print-path
+			OUTPUT_VARIABLE XCODE_DEV_PATH OUTPUT_STRIP_TRAILING_WHITESPACE)
+		set(OSX_ARCHITECTURES x86_64)
+		set(OSX_DEPLOYMENT_TARGET 10.9)
+		set(OSX_SDK_VERSION 10.12)
+		set(OSX_SYSROOT ${XCODE_DEV_PATH}/Platforms/MacOSX.platform/Developer/SDKs/MacOSX${OSX_SDK_VERSION}.sdk)
+
+		set(PLATFORM_CFLAGS "-isysroot ${OSX_SYSROOT} -mmacosx-version-min=${OSX_DEPLOYMENT_TARGET}")
+		set(PLATFORM_CXXFLAGS "-isysroot ${OSX_SYSROOT} -mmacosx-version-min=${OSX_DEPLOYMENT_TARGET} -std=c++11 -stdlib=libc++")
+		set(PLATFORM_LDFLAGS "-isysroot ${OSX_SYSROOT} -mmacosx-version-min=${OSX_DEPLOYMENT_TARGET}")
+		set(PLATFORM_BUILD_TARGET --build=x86_64-apple-darwin13.0.0) # OS X 10.9
+		set(PLATFORM_CMAKE_FLAGS
+			 -DCMAKE_OSX_ARCHITECTURES:STRING=${OSX_ARCHITECTURES}
+			 -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=${OSX_DEPLOYMENT_TARGET}
+			 -DCMAKE_OSX_SYSROOT:PATH=${OSX_SYSROOT}
+		)
+	else()
+		set(PLATFORM_CFLAGS "-fPIC")
+		set(PLATFORM_CXXFLAGS "-std=c++11 -fPIC")
+		set(PLATFORM_LDFLAGS)
+		set(PLATFORM_BUILD_TARGET)
+		set(PLATFORM_CMAKE_FLAGS)
+	endif()
+
+	if(WITH_OPTIMIZED_DEBUG)
+		set(BLENDER_CMAKE_C_FLAGS_DEBUG "-O2 -DNDEBUG")
+	else()
+		set(BLENDER_CMAKE_C_FLAGS_DEBUG "-g")
+	endif()
+	set(BLENDER_CMAKE_C_FLAGS_MINSIZEREL "-Os -DNDEBUG")
+	set(BLENDER_CMAKE_C_FLAGS_RELEASE "-O2 -DNDEBUG")
+	set(BLENDER_CMAKE_C_FLAGS_RELWITHDEBINFO "-O2 -g -DNDEBUG")
+
+	if(WITH_OPTIMIZED_DEBUG)
+		set(BLENDER_CMAKE_CXX_FLAGS_DEBUG "-O2 -DNDEBUG ${PLATFORM_CXXFLAGS}")
+	else()
+		set(BLENDER_CMAKE_CXX_FLAGS_DEBUG "-g ${PLATFORM_CXXFLAGS}")
+	endif()
+
+	set(BLENDER_CMAKE_CXX_FLAGS_MINSIZEREL "-Os -DNDEBUG ${PLATFORM_CXXFLAGS}")
+	set(BLENDER_CMAKE_CXX_FLAGS_RELEASE "-O2 -DNDEBUG ${PLATFORM_CXXFLAGS}")
+	set(BLENDER_CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -g -DNDEBUG ${PLATFORM_CXXFLAGS}")
+
+	set(CONFIGURE_ENV
+		export MACOSX_DEPLOYMENT_TARGET=${OSX_DEPLOYMENT_TARGET} &&
+		export CFLAGS=${PLATFORM_CFLAGS} &&
+		export CXXFLAGS=${PLATFORM_CXXFLAGS} &&
+		export LDFLAGS=${PLATFORM_LDFLAGS}
+	)
+	set(CONFIGURE_ENV_NO_PERL ${CONFIGURE_ENV})
+	set(CONFIGURE_COMMAND ./configure ${PLATFORM_BUILD_TARGET})
+	set(CONFIGURE_COMMAND_NO_TARGET ./configure)
+endif()
+
+set(DEFAULT_CMAKE_FLAGS
+	-DCMAKE_BUILD_TYPE=${BUILD_MODE}
+	-DCMAKE_C_FLAGS_DEBUG=${BLENDER_CMAKE_C_FLAGS_DEBUG}
+	-DCMAKE_C_FLAGS_MINSIZEREL=${BLENDER_CMAKE_C_FLAGS_MINSIZEREL}
+	-DCMAKE_C_FLAGS_RELEASE=${BLENDER_CMAKE_C_FLAGS_RELEASE}
+	-DCMAKE_C_FLAGS_RELWITHDEBINFO=${BLENDER_CMAKE_C_FLAGS_RELWITHDEBINFO}
+	-DCMAKE_CXX_FLAGS_DEBUG=${BLENDER_CMAKE_CXX_FLAGS_DEBUG}
+	-DCMAKE_CXX_FLAGS_MINSIZEREL=${BLENDER_CMAKE_CXX_FLAGS_MINSIZEREL}
+	-DCMAKE_CXX_FLAGS_RELEASE=${BLENDER_CMAKE_CXX_FLAGS_RELEASE}
+	-DCMAKE_CXX_FLAGS_RELWITHDEBINFO=${CMAKE_CXX_FLAGS_RELWITHDEBINFO}
+	${PLATFORM_CMAKE_FLAGS}
+)
+
+if(WIN32)
+	#we need both flavors to build the thumbnail dlls
+	if(MSVC12)
+		set(GENERATOR_32 "Visual Studio 12 2013")
+		set(GENERATOR_64 "Visual Studio 12 2013 Win64")
+	elseif(MSVC14)
+		set(GENERATOR_32 "Visual Studio 14 2015")
+		set(GENERATOR_64 "Visual Studio 14 2015 Win64")
+	endif()
+endif()
+
+
+if(WIN32)
+	set(ZLIB_LIBRARY zlibstatic${LIBEXT})
+else()
+	set(ZLIB_LIBRARY libz${LIBEXT})
+endif()
+
+if(MSVC)
+	set_property(GLOBAL PROPERTY USE_FOLDERS ON)
+endif()
+
+set(CMAKE_INSTALL_MESSAGE LAZY)
diff --git a/build_files/build_environment/cmake/orc.cmake b/build_files/build_environment/cmake/orc.cmake
new file mode 100644
index 00000000000..aac7884f49e
--- /dev/null
+++ b/build_files/build_environment/cmake/orc.cmake
@@ -0,0 +1,32 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+ExternalProject_Add(external_orc
+	URL ${ORC_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${ORC_HASH}
+	PREFIX ${BUILD_DIR}/orc
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/orc/src/external_orc/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/orc --disable-shared --enable-static
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/orc/src/external_orc/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/orc/src/external_orc/ && make install
+	INSTALL_DIR ${LIBDIR}/orc
+)
+
+if(MSVC)
+	set_target_properties(external_orc PROPERTIES FOLDER Mingw)
+endif()
diff --git a/build_files/build_environment/cmake/osl.cmake b/build_files/build_environment/cmake/osl.cmake
new file mode 100644
index 00000000000..5ddb981c604
--- /dev/null
+++ b/build_files/build_environment/cmake/osl.cmake
@@ -0,0 +1,87 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(WIN32)
+	set(OSL_CMAKE_CXX_STANDARD_LIBRARIES "kernel32${LIBEXT} user32${LIBEXT} gdi32${LIBEXT} winspool${LIBEXT} shell32${LIBEXT} ole32${LIBEXT} oleaut32${LIBEXT} uuid${LIBEXT} comdlg32${LIBEXT} advapi32${LIBEXT} psapi${LIBEXT}")
+	set(OSL_FLEX_BISON -DFLEX_EXECUTABLE=${LIBDIR}/flexbison/win_flex.exe -DFLEX_EXTRA_OPTIONS="--wincompat" -DBISON_EXECUTABLE=${LIBDIR}/flexbison/win_bison.exe)
+	set(OSL_OPENIMAGEIO_LIBRARY "${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO${LIBEXT};${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO_Util${LIBEXT};${LIBDIR}/png/lib/libpng16${LIBEXT};${LIBDIR}/jpg/lib/${LIBPREFIX}jpeg${LIBEXT};${LIBDIR}/tiff/lib/${LIBPREFIX}tiff${LIBEXT};${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf-2_2${LIBEXT}")
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "4")
+		set(OSL_SIMD_FLAGS -DOIIO_NOSIMD=1 -DOIIO_SIMD=0)
+	else()
+		set(OSL_SIMD_FLAGS -DOIIO_NOSIMD=1 -DOIIO_SIMD=sse2)
+	endif()
+else()
+	set(OSL_CMAKE_CXX_STANDARD_LIBRARIES)
+	set(OSL_FLEX_BISON)
+	set(OSL_OPENIMAGEIO_LIBRARY "${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO${LIBEXT};${LIBDIR}/openimageio/lib/${LIBPREFIX}OpenImageIO_Util${LIBEXT};${LIBDIR}/png/lib/${LIBPREFIX}png16${LIBEXT};${LIBDIR}/jpg/lib/${LIBPREFIX}jpeg${LIBEXT};${LIBDIR}/tiff/lib/${LIBPREFIX}tiff${LIBEXT};${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf-2_2${LIBEXT}")
+endif()
+
+set(OSL_ILMBASE_CUSTOM_LIBRARIES "${LIBDIR}/ilmbase/lib/Imath-2_2.lib^^${LIBDIR}/ilmbase/lib/Half.lib^^${LIBDIR}/ilmbase/lib/IlmThread-2_2.lib^^${LIBDIR}/ilmbase/lib/Iex-2_2.lib")
+set(OSL_LLVM_LIBRARY "${LIBDIR}/llvm/lib/LLVMAnalysis${LIBEXT};${LIBDIR}/llvm/lib/LLVMAsmParser${LIBEXT};${LIBDIR}/llvm/lib/LLVMAsmPrinter${LIBEXT};${LIBDIR}/llvm/lib/LLVMBitReader${LIBEXT};${LIBDIR}/llvm/lib/LLVMBitWriter${LIBEXT};${LIBDIR}/llvm/lib/LLVMCodeGen${LIBEXT};${LIBDIR}/llvm/lib/LLVMCore${LIBEXT};${LIBDIR}/llvm/lib/LLVMDebugInfo${LIBEXT};${LIBDIR}/llvm/lib/LLVMExecutionEngine${LIBEXT};${LIBDIR}/llvm/lib/LLVMInstCombine${LIBEXT};${LIBDIR}/llvm/lib/LLVMInstrumentation${LIBEXT};${LIBDIR}/llvm/lib/LLVMInterpreter${LIBEXT};${LIBDIR}/llvm/lib/LLVMJIT${LIBEXT};${LIBDIR}/llvm/lib/LLVMLinker${LIBEXT};${LIBDIR}/llvm/lib/LLVMMC${LIBEXT};${LIBDIR}/llvm/lib/LLVMMCDisassembler${LIBEXT};${LIBDIR}/llvm/lib/LLVMMCJIT${LIBEXT};${LIBDIR}/llvm/lib/LLVMMCParser${LIBEXT};${LIBDIR}/llvm/lib/LLVMObject${LIBEXT};${LIBDIR}/llvm/lib/LLVMRuntimeDyld${LIBEXT};${LIBDIR}/llvm/lib/LLVMScalarOpts${LIBEXT};${LIBDIR}/llvm/lib/LLVMSelectionDAG${LIBEXT};${LIBDIR}/llvm/lib/LLVMSupport${LIBEXT};${LIBDIR}/llvm/lib/LLVMTableGen${LIBEXT};${LIBDIR}/llvm/lib/LLVMTarget${LIBEXT};${LIBDIR}/llvm/lib/LLVMTransformUtils${LIBEXT};${LIBDIR}/llvm/lib/LLVMVectorize${LIBEXT};${LIBDIR}/llvm/lib/LLVMX86AsmParser${LIBEXT};${LIBDIR}/llvm/lib/LLVMX86AsmPrinter${LIBEXT};${LIBDIR}/llvm/lib/LLVMX86CodeGen${LIBEXT};${LIBDIR}/llvm/lib/LLVMX86Desc${LIBEXT};${LIBDIR}/llvm/lib/LLVMX86Disassembler${LIBEXT};${LIBDIR}/llvm/lib/LLVMX86Info${LIBEXT};${LIBDIR}/llvm/lib/LLVMX86Utils${LIBEXT};${LIBDIR}/llvm/lib/LLVMipa${LIBEXT};${LIBDIR}/llvm/lib/LLVMipo${LIBEXT}")
+
+set(OSL_EXTRA_ARGS
+	-DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
+	-DBoost_USE_MULTITHREADED=ON
+	-DBoost_USE_STATIC_LIBS=ON
+	-DBoost_USE_STATIC_RUNTIME=ON
+	-DBOOST_ROOT=${LIBDIR}/boost
+	-DBOOST_LIBRARYDIR=${LIBDIR}/boost/lib/
+	-DBoost_NO_SYSTEM_PATHS=ON
+	-DLLVM_DIRECTORY=${LIBDIR}/llvm
+	-DLLVM_INCLUDES=${LIBDIR}/llvm/include
+	-DLLVM_LIB_DIR=${LIBDIR}/llvm/lib
+	-DLLVM_VERSION=3.4
+	-DLLVM_LIBRARY=${OSL_LLVM_LIBRARY}
+	-DOPENEXR_HOME=${LIBDIR}/openexr/
+	-DILMBASE_HOME=${LIBDIR}/ilmbase/
+	-DILMBASE_INCLUDE_DIR=${LIBDIR}/ilmbase/include/
+	-DOPENEXR_IMATH_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Imath-2_2${LIBEXT}
+	-DOPENEXR_ILMTHREAD_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}IlmThread-2_2${LIBEXT}
+	-DOPENEXR_IEX_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Iex-2_2${LIBEXT}
+	-DOPENEXR_INCLUDE_DIR=${LIBDIR}/openexr/include/
+	-DOPENEXR_ILMIMF_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf-2_2${LIBEXT}
+	-DOSL_BUILD_TESTS=OFF
+	-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+	-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+	-DOPENIMAGEIOHOME=${LIBDIR}/openimageio/
+	-DOPENIMAGEIO_LIBRARY=${OSL_OPENIMAGEIO_LIBRARY}
+	-DOPENIMAGEIO_INCLUDES=${LIBDIR}/openimageio/include
+	${OSL_FLEX_BISON}
+	-DCMAKE_CXX_STANDARD_LIBRARIES=${OSL_CMAKE_CXX_STANDARD_LIBRARIES}
+	-DBUILDSTATIC=ON
+	-DLINKSTATIC=ON
+	-DOSL_BUILD_PLUGINS=Off
+	-DSTOP_ON_WARNING=OFF
+	-DOSL_BUILD_CPP11=ON
+	-DUSE_LLVM_BITCODE=OFF
+	${OSL_SIMD_FLAGS}
+)
+
+ExternalProject_Add(external_osl
+	URL ${OSL_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	LIST_SEPARATOR ^^
+	URL_HASH MD5=${OSL_HASH}
+	PREFIX ${BUILD_DIR}/osl
+	PATCH_COMMAND ${PATCH_CMD} -p 3 -d ${BUILD_DIR}/osl/src/external_osl < ${PATCH_DIR}/osl.diff &&
+				${PATCH_CMD} -p 0 -d ${BUILD_DIR}/osl/src/external_osl < ${PATCH_DIR}/osl_simd_oiio.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/osl -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} ${DEFAULT_CMAKE_FLAGS} ${OSL_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/osl
+)
+
+add_dependencies(external_osl external_boost ll external_clang external_ilmbase external_openexr external_zlib external_flexbison external_openimageio)
diff --git a/build_files/build_environment/cmake/png.cmake b/build_files/build_environment/cmake/png.cmake
new file mode 100644
index 00000000000..8d6fee871f9
--- /dev/null
+++ b/build_files/build_environment/cmake/png.cmake
@@ -0,0 +1,41 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(PNG_EXTRA_ARGS
+	-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+	-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+	-DPNG_STATIC=ON
+)
+
+ExternalProject_Add(external_png
+	URL ${PNG_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${PNG_HASH}
+	PREFIX ${BUILD_DIR}/png
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/png ${DEFAULT_CMAKE_FLAGS} ${PNG_EXTRA_ARGS}
+	INSTALL_DIR	${LIBDIR}/png
+)
+
+add_dependencies(external_png external_zlib)
+
+if(BUILD_MODE STREQUAL Debug)
+	ExternalProject_Add_Step(external_png after_install
+		COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/png/lib/libpng16_staticd${LIBEXT} ${LIBDIR}/png/lib/libpng16${LIBEXT}
+		DEPENDEES install
+	)
+endif()
diff --git a/build_files/build_environment/cmake/pthreads.cmake b/build_files/build_environment/cmake/pthreads.cmake
new file mode 100644
index 00000000000..f4301b95f3a
--- /dev/null
+++ b/build_files/build_environment/cmake/pthreads.cmake
@@ -0,0 +1,45 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(WIN32)
+		set(PTHREAD_XCFLAGS /MD)
+
+		if(MSVC14) # vs2015 has timespec
+			set(PTHREAD_CPPFLAGS "/I. /DHAVE_PTW32_CONFIG_H /D_TIMESPEC_DEFINED ")
+		else() # everything before doesn't
+			set(PTHREAD_CPPFLAGS "/I. /DHAVE_PTW32_CONFIG_H ")
+		endif()
+
+		set(PTHREADS_BUILD cd ${BUILD_DIR}/pthreads/src/external_pthreads/ && cd && nmake VC /e CPPFLAGS=${PTHREAD_CPPFLAGS} /e XCFLAGS=${PTHREAD_XCFLAGS} /e XLIBS=/NODEFAULTLIB:msvcr)
+
+		ExternalProject_Add(external_pthreads
+			URL ${PTHREADS_URI}
+			DOWNLOAD_DIR ${DOWNLOAD_DIR}
+			URL_HASH SHA512=${PTHREADS_SHA512}
+			PREFIX ${BUILD_DIR}/pthreads
+			CONFIGURE_COMMAND echo .
+			PATCH_COMMAND ${PATCH_CMD} --verbose -p 0 -N -d ${BUILD_DIR}/pthreads/src/external_pthreads < ${PATCH_DIR}/pthreads.diff
+			BUILD_COMMAND ${PTHREADS_BUILD}
+			INSTALL_COMMAND COMMAND ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/pthreads/src/external_pthreads/pthreadVC2.dll ${LIBDIR}/pthreads/lib/pthreadVC2.dll &&
+															${CMAKE_COMMAND} -E copy ${BUILD_DIR}/pthreads/src/external_pthreads/pthreadVC2${LIBEXT} ${LIBDIR}/pthreads/lib/pthreadVC2${LIBEXT} &&
+															${CMAKE_COMMAND} -E copy ${BUILD_DIR}/pthreads/src/external_pthreads/pthread.h ${LIBDIR}/pthreads/inc/pthread.h &&
+															${CMAKE_COMMAND} -E copy ${BUILD_DIR}/pthreads/src/external_pthreads/sched.h ${LIBDIR}/pthreads/inc/sched.h &&
+															${CMAKE_COMMAND} -E copy ${BUILD_DIR}/pthreads/src/external_pthreads/semaphore.h ${LIBDIR}/pthreads/inc/semaphore.h
+			INSTALL_DIR ${LIBDIR}/pthreads
+		)
+endif()
diff --git a/build_files/build_environment/cmake/python.cmake b/build_files/build_environment/cmake/python.cmake
new file mode 100644
index 00000000000..98d9d4ae63e
--- /dev/null
+++ b/build_files/build_environment/cmake/python.cmake
@@ -0,0 +1,138 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(PYTHON_POSTFIX)
+if(BUILD_MODE STREQUAL Debug)
+	set(PYTHON_POSTFIX _d)
+endif()
+
+if(WIN32)
+	set(PYTHON_BINARY ${BUILD_DIR}/python/src/external_python/run/python${PYTHON_POSTFIX}.exe)
+
+	macro(cmake_to_dos_path MsysPath ResultingPath)
+		string(REPLACE "/" "\\" ${ResultingPath} "${MsysPath}")
+	endmacro()
+
+	set(PYTHON_EXTERNALS_FOLDER ${BUILD_DIR}/python/src/external_python/externals)
+	set(DOWNLOADS_EXTERNALS_FOLDER ${DOWNLOAD_DIR}/externals)
+
+	cmake_to_dos_path(${PYTHON_EXTERNALS_FOLDER} PYTHON_EXTERNALS_FOLDER_DOS)
+	cmake_to_dos_path(${DOWNLOADS_EXTERNALS_FOLDER} DOWNLOADS_EXTERNALS_FOLDER_DOS)
+
+	message("Python externals = ${PYTHON_EXTERNALS_FOLDER}")
+	message("Python externals_dos = ${PYTHON_EXTERNALS_FOLDER_DOS}")
+	message("Python DOWNLOADS_EXTERNALS_FOLDER = ${DOWNLOADS_EXTERNALS_FOLDER}")
+	message("Python DOWNLOADS_EXTERNALS_FOLDER_DOS = ${DOWNLOADS_EXTERNALS_FOLDER_DOS}")
+
+	ExternalProject_Add(external_python
+		URL ${PYTHON_URI}
+		DOWNLOAD_DIR ${DOWNLOAD_DIR}
+		URL_HASH MD5=${PYTHON_HASH}
+		PREFIX ${BUILD_DIR}/python
+		PATCH_COMMAND echo mklink /D "${PYTHON_EXTERNALS_FOLDER_DOS}" "${DOWNLOADS_EXTERNALS_FOLDER_DOS}" &&
+						 mklink /D "${PYTHON_EXTERNALS_FOLDER_DOS}" "${DOWNLOADS_EXTERNALS_FOLDER_DOS}" &&
+						 ${PATCH_CMD} --verbose -p 0 -d ${BUILD_DIR}/python/src/external_python < ${PATCH_DIR}/python.diff &&
+						 ${PATCH_CMD} --verbose -p 0 -d ${BUILD_DIR}/python/src/external_python/pc < ${PATCH_DIR}/pyshell.diff
+		CONFIGURE_COMMAND ""
+		BUILD_COMMAND cd ${BUILD_DIR}/python/src/external_python/pcbuild/ && set IncludeTkinter=false && call build.bat -e -p ${PYTHON_ARCH} -c ${BUILD_MODE} -k ${PYTHON_COMPILER_STRING}
+		INSTALL_COMMAND COMMAND ${CMAKE_COMMAND} -E copy ${PYTHON_OUTPUTDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.dll ${LIBDIR}/python/lib/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.dll &&
+								${CMAKE_COMMAND} -E copy ${PYTHON_OUTPUTDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.lib ${LIBDIR}/python/lib/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.lib &&
+								${CMAKE_COMMAND} -E copy ${PYTHON_OUTPUTDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.exp ${LIBDIR}/python/lib/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.exp &&
+								${CMAKE_COMMAND} -E copy_directory ${BUILD_DIR}/python/src/external_python/include ${LIBDIR}/python/include/Python${PYTHON_SHORT_VERSION} &&
+								${CMAKE_COMMAND} -E copy "${BUILD_DIR}/python/src/external_python/PC/pyconfig.h" ${LIBDIR}/python/include/Python${PYTHON_SHORT_VERSION}/pyconfig.h
+	)
+	Message("PythinRedist = ${BUILD_DIR}/python/src/external_python/redist")
+	Message("POutput = ${PYTHON_OUTPUTDIR}")
+else()
+	if(APPLE)
+		# we need to manually add homebrew headers to get ssl module building
+		set(PYTHON_CFLAGS "-I/usr/local/opt/openssl/include -I${OSX_SYSROOT}/usr/include ${PLATFORM_CFLAGS}")
+		set(PYTHON_LDFLAGS "-L/usr/local/opt/openssl/lib ${PLATFORM_LDFLAGS}")
+		set(PYTHON_CONFIGURE_ENV ${CONFIGURE_ENV} && export CFLAGS=${PYTHON_CFLAGS} && export LDFLAGS=${PYTHON_LDFLAGS})
+		set(PYTHON_BINARY ${BUILD_DIR}/python/src/external_python/python.exe)
+		set(PYTHON_PATCH ${PATCH_CMD} --verbose -p 0 -d ${BUILD_DIR}/python/src/external_python < ${PATCH_DIR}/python_apple.diff)
+	else()
+		set(PYTHON_CONFIGURE_ENV ${CONFIGURE_ENV})
+		set(PYTHON_BINARY ${BUILD_DIR}/python/src/external_python/python)
+	endif()
+
+	ExternalProject_Add(external_python
+		URL ${PYTHON_URI}
+		DOWNLOAD_DIR ${DOWNLOAD_DIR}
+		URL_HASH MD5=${PYTHON_HASH}
+		PREFIX ${BUILD_DIR}/python
+		PATCH_COMMAND ${PYTHON_PATCH}
+		CONFIGURE_COMMAND ${PYTHON_CONFIGURE_ENV} && cd ${BUILD_DIR}/python/src/external_python/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/python
+		BUILD_COMMAND ${PYTHON_CONFIGURE_ENV} && cd ${BUILD_DIR}/python/src/external_python/ && make -j${MAKE_THREADS}
+		INSTALL_COMMAND ${PYTHON_CONFIGURE_ENV} && cd ${BUILD_DIR}/python/src/external_python/ && make install
+		INSTALL_DIR ${LIBDIR}/python)
+
+	add_custom_target(Make_Python_Environment ALL DEPENDS external_python)
+endif()
+
+if(MSVC)
+	add_custom_command(
+		OUTPUT ${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.tar.gz
+		OUTPUT ${BUILD_DIR}/python/src/external_python/redist/bin/python${PYTHON_POSTFIX}.exe
+		COMMAND ${CMAKE_COMMAND} -E copy_directory ${BUILD_DIR}/python/src/external_python/lib ${BUILD_DIR}/python/src/external_python/redist/lib
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/python${PYTHON_POSTFIX}.exe" ${BUILD_DIR}/python/src/external_python/redist/bin/python${PYTHON_POSTFIX}.exe
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_bz2${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_bz2${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_hashlib${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_hashlib${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_lzma${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_lzma${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_sqlite3${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_sqlite3${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_ssl${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_ssl${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/pyexpat${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/pyexpat${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/select${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/select${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/unicodedata${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/unicodedata${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/winsound${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/winsound${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_ctypes${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_ctypes${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_ctypes_test${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_ctypes_test${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_decimal${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_decimal${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_elementtree${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_elementtree${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_msi${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_msi${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_multiprocessing${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_multiprocessing${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_overlapped${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_overlapped${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_socket${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_socket${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_testbuffer${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_testbuffer${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_testcapi${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_testcapi${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_testimportmultiple${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_testimportmultiple${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/_testmultiphase${PYTHON_POSTFIX}.pyd" ${BUILD_DIR}/python/src/external_python/redist/lib/_testmultiphase${PYTHON_POSTFIX}.pyd
+		COMMAND ${CMAKE_COMMAND} -E chdir "${BUILD_DIR}/python/src/external_python/redist" ${CMAKE_COMMAND} -E tar "cfvz" "${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.tar.gz" "."
+	)
+
+	add_custom_target(Package_Python ALL DEPENDS external_python ${LIBDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.tar.gz ${BUILD_DIR}/python/src/external_python/redist/bin/python${PYTHON_POSTFIX}.exe)
+
+	if(MSVC12)
+		set(PYTHON_DISTUTIL_PATCH ${PATCH_CMD} --verbose -p 0 -d ${BUILD_DIR}/python/src/external_python/run/lib/distutils < ${PATCH_DIR}/python_runtime_vc2013.diff)
+	else()
+		set(PYTHON_DISTUTIL_PATCH echo "No patch needed")
+	endif()
+
+	add_custom_command(OUTPUT ${BUILD_DIR}/python/src/external_python/run/python${PYTHON_POSTFIX}.exe
+		COMMAND	${CMAKE_COMMAND} -E copy_directory ${BUILD_DIR}/python/src/external_python/redist ${BUILD_DIR}/python/src/external_python/run
+		COMMAND	${CMAKE_COMMAND} -E copy_directory ${BUILD_DIR}/python/src/external_python/include ${BUILD_DIR}/python/src/external_python/run/include
+		COMMAND	${CMAKE_COMMAND} -E copy "${BUILD_DIR}/python/src/external_python/PC/pyconfig.h" ${BUILD_DIR}/python/src/external_python/run/include/pyconfig.h
+		COMMAND	${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.dll" ${BUILD_DIR}/python/src/external_python/run/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.dll
+		COMMAND	${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.lib" ${BUILD_DIR}/python/src/external_python/run/libs/python${PYTHON_SHORT_VERSION_NO_DOTS}.lib  #missing postfix on purpose, distutils is not expecting it
+		COMMAND	${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.lib" ${BUILD_DIR}/python/src/external_python/run/libs/python${PYTHON_SHORT_VERSION_NO_DOTS}${PYTHON_POSTFIX}.lib  #other things like numpy still want it though.
+		COMMAND	${CMAKE_COMMAND} -E copy "${PYTHON_OUTPUTDIR}/python${PYTHON_POSTFIX}.exe" ${BUILD_DIR}/python/src/external_python/run/python${PYTHON_POSTFIX}.exe
+		COMMAND	${BUILD_DIR}/python/src/external_python/run/python${PYTHON_POSTFIX}.exe -m ensurepip --upgrade
+		COMMAND	${PYTHON_DISTUTIL_PATCH}
+	)
+	add_custom_target(Make_Python_Environment ALL DEPENDS ${BUILD_DIR}/python/src/external_python/run/python${PYTHON_POSTFIX}.exe Package_Python)
+endif(MSVC)
diff --git a/build_files/build_environment/cmake/python_site_packages.cmake b/build_files/build_environment/cmake/python_site_packages.cmake
new file mode 100644
index 00000000000..530bae4c958
--- /dev/null
+++ b/build_files/build_environment/cmake/python_site_packages.cmake
@@ -0,0 +1,38 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+if(WIN32)
+	set(HARVEST_CMD cmd /C FOR /d /r ${BUILD_DIR}/python/src/external_python/run/lib/site-packages %d IN (__pycache__) DO @IF EXIST "%d" rd /s /q "%d" &&
+					${CMAKE_COMMAND} -E copy_directory  ${BUILD_DIR}/python/src/external_python/run/lib/site-packages/idna ${HARVEST_TARGET}/Release/site-packages/idna &&
+					${CMAKE_COMMAND} -E copy_directory  ${BUILD_DIR}/python/src/external_python/run/lib/site-packages/chardet ${HARVEST_TARGET}/Release/site-packages/chardet &&
+					${CMAKE_COMMAND} -E copy_directory  ${BUILD_DIR}/python/src/external_python/run/lib/site-packages/urllib3 ${HARVEST_TARGET}/Release/site-packages/urllib3 &&
+					${CMAKE_COMMAND} -E copy_directory  ${BUILD_DIR}/python/src/external_python/run/lib/site-packages/certifi ${HARVEST_TARGET}/Release/site-packages/certifi &&
+					${CMAKE_COMMAND} -E copy_directory  ${BUILD_DIR}/python/src/external_python/run/lib/site-packages/requests ${HARVEST_TARGET}/Release/site-packages/requests 
+		)
+else()
+	set(HARVEST_CMD echo .) 
+endif()
+
+ExternalProject_Add(external_python_site_packages
+	DOWNLOAD_COMMAND ""
+	CONFIGURE_COMMAND ""
+	BUILD_COMMAND ""
+	PREFIX ${BUILD_DIR}/site_packages
+	INSTALL_COMMAND ${PYTHON_BINARY} -m pip install idna==${IDNA_VERSION} chardet==${CHARDET_VERSION} urllib3==${URLLIB3_VERSION} certifi==${CERTIFI_VERSION} requests==${REQUESTS_VERSION} --no-binary :all: && ${HARVEST_CMD}
+)
+
+add_dependencies(external_python_site_packages Make_Python_Environment)
diff --git a/build_files/build_environment/cmake/schroedinger.cmake b/build_files/build_environment/cmake/schroedinger.cmake
new file mode 100644
index 00000000000..54a20db5b5e
--- /dev/null
+++ b/build_files/build_environment/cmake/schroedinger.cmake
@@ -0,0 +1,45 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(WIN32)
+	set(SCHROEDINGER_EXTRA_FLAGS "CFLAGS=-g -I./ -I${LIBDIR}/orc/include/orc-0.4" "LDFLAGS=-Wl,--as-needed -static-libgcc -L${LIBDIR}/orc/lib" ORC_CFLAGS=-I${LIBDIR}/orc/include/orc-0.4 ORC_LDFLAGS=-L${LIBDIR}/orc/lib ORC_LIBS=${LIBDIR}/orc/lib/liborc-0.4.a ORCC=${LIBDIR}/orc/bin/orcc.exe)
+else()
+	set(SCHROEDINGER_CFLAGS "${PLATFORM_CFLAGS} -I./ -I${LIBDIR}/orc/include/orc-0.4")
+	set(SCHROEDINGER_LDFLAGS "${PLATFORM_LDFLAGS} -L${LIBDIR}/orc/lib")
+	set(SCHROEDINGER_EXTRA_FLAGS CFLAGS=${SCHROEDINGER_CFLAGS} LDFLAGS=${SCHROEDINGER_LDFLAGS} ORC_CFLAGS=-I${LIBDIR}/orc/include/orc-0.4 ORC_LDFLAGS=-L${LIBDIR}/orc/lib ORCC=${LIBDIR}/orc/bin/orcc) # ORC_LIBS=${LIBDIR}/orc/lib/liborc-0.4.a
+endif()
+
+ExternalProject_Add(external_schroedinger
+	URL ${SCHROEDINGER_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${SCHROEDINGER_HASH}
+	PREFIX ${BUILD_DIR}/schroedinger
+	PATCH_COMMAND ${PATCH_CMD} --verbose -p 0 -N -d ${BUILD_DIR}/schroedinger/src/external_schroedinger < ${PATCH_DIR}/schroedinger.diff
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} &&
+		cd ${BUILD_DIR}/schroedinger/src/external_schroedinger/ &&
+		${CONFIGURE_COMMAND} --prefix=${LIBDIR}/schroedinger --disable-shared --enable-static ${SCHROEDINGER_EXTRA_FLAGS}
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/schroedinger/src/external_schroedinger/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/schroedinger/src/external_schroedinger/ && make install
+	INSTALL_DIR ${LIBDIR}/schroedinger
+)
+
+add_dependencies(external_schroedinger external_orc)
+
+if(MSVC)
+	set_target_properties(external_schroedinger PROPERTIES FOLDER Mingw)
+endif()
diff --git a/build_files/build_environment/cmake/sdl.cmake b/build_files/build_environment/cmake/sdl.cmake
new file mode 100644
index 00000000000..0fbfa078eb1
--- /dev/null
+++ b/build_files/build_environment/cmake/sdl.cmake
@@ -0,0 +1,39 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(WIN32)
+	set(SDL_EXTRA_ARGS
+		-DSDL_STATIC=Off
+	)
+else()
+	set(SDL_EXTRA_ARGS
+		-DSDL_STATIC=ON
+		-DSDL_SHARED=OFF
+		-DSDL_VIDEO=OFF
+	)
+endif()
+
+ExternalProject_Add(external_sdl
+	URL ${SDL_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${SDL_HASH}
+	PREFIX ${BUILD_DIR}/sdl
+	PATCH_COMMAND ${PATCH_CMD} -p 0 -N -d ${BUILD_DIR}/sdl/src/external_sdl < ${PATCH_DIR}/sdl.diff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/sdl ${DEFAULT_CMAKE_FLAGS} ${SDL_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/sdl
+)
diff --git a/build_files/build_environment/cmake/setup_mingw32.cmake b/build_files/build_environment/cmake/setup_mingw32.cmake
new file mode 100644
index 00000000000..f0d99356da0
--- /dev/null
+++ b/build_files/build_environment/cmake/setup_mingw32.cmake
@@ -0,0 +1,219 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+####################################################################################################################
+# Mingw32 Builds
+####################################################################################################################
+# This installs mingw32+msys to compile ffmpeg/iconv/libsndfile/lapack/fftw3
+####################################################################################################################
+
+message("LIBDIR = ${LIBDIR}")
+macro(cmake_to_msys_path MsysPath ResultingPath)
+	string(REPLACE ":" "" TmpPath "${MsysPath}")
+	string(SUBSTRING ${TmpPath} 0 1 Drive)
+	string(SUBSTRING ${TmpPath} 1 255 PathPart)
+	string(TOLOWER ${Drive} LowerDrive)
+	string(CONCAT ${ResultingPath} "/" ${LowerDrive} ${PathPart})
+endmacro()
+cmake_to_msys_path(${LIBDIR} mingw_LIBDIR)
+message("mingw_LIBDIR = ${mingw_LIBDIR}")
+
+message("Checking for mingw32")
+# download mingw32
+if(NOT EXISTS "${DOWNLOAD_DIR}/i686-w64-mingw32-gcc-4.8.0-win32_rubenvb.7z")
+	message("Downloading mingw32")
+	file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/mingw-w64/Toolchains%20targetting%20Win32/Personal%20Builds/rubenvb/gcc-4.8-release/i686-w64-mingw32-gcc-4.8.0-win32_rubenvb.7z" "${DOWNLOAD_DIR}/i686-w64-mingw32-gcc-4.8.0-win32_rubenvb.7z")
+endif()
+
+# make mingw root directory
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E make_directory ${DOWNLOAD_DIR}/mingw
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}
+	)
+endif()
+
+# extract mingw32
+if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/mingw32env.cmd") AND (EXISTS "${DOWNLOAD_DIR}/i686-w64-mingw32-gcc-4.8.0-win32_rubenvb.7z"))
+	message("Extracting mingw32")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf ${DOWNLOAD_DIR}/i686-w64-mingw32-gcc-4.8.0-win32_rubenvb.7z
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/mingw
+	)
+endif()
+
+message("Checking for pkg-config")
+if(NOT EXISTS "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip")
+	message("Downloading pkg-config")
+	file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/pkgconfiglite/0.28-1/pkg-config-lite-0.28-1_bin-win32.zip" "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip")
+endif()
+
+# extract pkgconfig
+if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/pkg-config.exe") AND (EXISTS "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip"))
+	message("Extracting pkg-config")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/
+	)
+
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1/bin/pkg-config.exe" "${DOWNLOAD_DIR}/mingw/mingw32/bin/pkg-config.exe"
+	)
+
+endif()
+
+message("Checking for nasm")
+if(NOT EXISTS "${DOWNLOAD_DIR}/nasm-2.12.01-win32.zip")
+	message("Downloading nasm")
+	file(DOWNLOAD "http://www.nasm.us/pub/nasm/releasebuilds/2.12.01/win32/nasm-2.12.01-win32.zip" "${DOWNLOAD_DIR}/nasm-2.12.01-win32.zip")
+endif()
+
+# extract nasm
+if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/nasm.exe") AND (EXISTS "${DOWNLOAD_DIR}/nasm-2.12.01-win32.zip"))
+	message("Extracting nasm")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf "${DOWNLOAD_DIR}/nasm-2.12.01-win32.zip"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/
+	)
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/nasm-2.12.01/nasm.exe" "${DOWNLOAD_DIR}/mingw/mingw32/bin/nasm.exe"
+	)
+
+endif()
+
+message("Checking for mingwGet")
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip")
+	message("Downloading mingw-get")
+	file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/mingw/Installer/mingw-get/mingw-get-0.6.2-beta-20131004-1/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip" "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip")
+endif()
+
+# extract mingw_get
+if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/mingw-get.exe") AND (EXISTS "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip"))
+	message("Extracting mingw-get")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/mingw/mingw32/
+	)
+endif()
+
+if((EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/mingw-get.exe") AND (NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/msys/1.0/bin/make.exe"))
+	message("Installing MSYS")
+	execute_process(
+		COMMAND ${DOWNLOAD_DIR}/mingw/mingw32/bin/mingw-get install msys msys-patch
+		WORKING_DIRECTORY  ${DOWNLOAD_DIR}/mingw/mingw32/bin/
+	)
+endif()
+
+message("Checking for CoreUtils")
+# download old core_utils for pr.exe (ffmpeg needs it to build)
+if(NOT EXISTS "${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2")
+	message("Downloading CoreUtils 5.97")
+	file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/mingw/MSYS/Base/msys-core/_obsolete/coreutils-5.97-MSYS-1.0.11-2/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2" "${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2")
+endif()
+
+if((EXISTS "${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2") AND (NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/msys/1.0/bin/pr.exe"))
+	message("Installing pr from CoreUtils 5.97")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E make_directory ${DOWNLOAD_DIR}/tmp_coreutils
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}
+	)
+
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf ${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/tmp_coreutils/
+	)
+
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy ${DOWNLOAD_DIR}/tmp_coreutils/coreutils-5.97/bin/pr.exe "${DOWNLOAD_DIR}/mingw/mingw32/msys/1.0/bin/pr.exe"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/tmp_coreutils/
+	)
+endif()
+
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/ming32sh.cmd")
+	message("Installing ming32sh.cmd")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/ming32sh.cmd  ${DOWNLOAD_DIR}/mingw/mingw32/ming32sh.cmd
+	)
+endif()
+
+message("Checking for perl")
+# download perl for libvpx
+if(NOT EXISTS "${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-32bit-portable.zip")
+	message("Downloading perl")
+	file(DOWNLOAD "http://strawberryperl.com/download/5.22.1.3/strawberry-perl-5.22.1.3-32bit-portable.zip" "${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-32bit-portable.zip")
+endif()
+
+# make perl root directory
+if(NOT EXISTS "${DOWNLOAD_DIR}/perl32")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E make_directory ${DOWNLOAD_DIR}/perl32
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}
+	)
+endif()
+
+# extract perl
+if((NOT EXISTS "${DOWNLOAD_DIR}/perl32/portable.perl") AND (EXISTS "${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-32bit-portable.zip"))
+	message("Extracting perl")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf ${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-32bit-portable.zip
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/perl32
+	)
+endif()
+
+# get yasm for vpx
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/yasm.exe")
+	message("Downloading yasm")
+	file(DOWNLOAD "http://www.tortall.net/projects/yasm/releases/yasm-1.3.0-win32.exe" "${DOWNLOAD_DIR}/mingw/mingw32/bin/yasm.exe")
+endif()
+
+message("checking i686-w64-mingw32-strings")
+# copy strings.exe to i686-w64-mingw32-strings for x264
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-strings.exe")
+	message("fixing i686-w64-mingw32-strings.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw32/bin/strings.exe" "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-strings.exe"
+	)
+endif()
+
+message("checking i686-w64-mingw32-ar.exe")
+# copy ar.exe to i686-w64-mingw32-ar.exe for x264
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-ar.exe")
+	message("fixing i686-w64-mingw32-ar.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw32/bin/ar.exe" "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-ar.exe"
+	)
+endif()
+
+message("checking i686-w64-mingw32-strip.exe")
+# copy strip.exe to i686-w64-mingw32-strip.exe for x264
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-strip.exe")
+	message("fixing i686-w64-mingw32-strip.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw32/bin/strip.exe" "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-strip.exe"
+	)
+endif()
+
+message("checking i686-w64-mingw32-ranlib.exe")
+# copy ranlib.exe to i686-w64-mingw32-ranlib.exe for x264
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-ranlib.exe")
+	message("fixing i686-w64-mingw32-ranlib.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw32/bin/ranlib.exe" "${DOWNLOAD_DIR}/mingw/mingw32/bin/i686-w64-mingw32-ranlib.exe"
+	)
+endif()
+
diff --git a/build_files/build_environment/cmake/setup_mingw64.cmake b/build_files/build_environment/cmake/setup_mingw64.cmake
new file mode 100644
index 00000000000..14f75d410b4
--- /dev/null
+++ b/build_files/build_environment/cmake/setup_mingw64.cmake
@@ -0,0 +1,219 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+####################################################################################################################
+# Mingw64 Builds
+####################################################################################################################
+# This installs mingw64+msys to compile ffmpeg/iconv/libsndfile/lapack/fftw3
+####################################################################################################################
+
+message("LIBDIR = ${LIBDIR}")
+macro(cmake_to_msys_path MsysPath ResultingPath)
+	string(REPLACE ":" "" TmpPath "${MsysPath}")
+	string(SUBSTRING ${TmpPath} 0 1 Drive)
+	string(SUBSTRING ${TmpPath} 1 255 PathPart)
+	string(TOLOWER ${Drive} LowerDrive)
+	string(CONCAT ${ResultingPath} "/" ${LowerDrive} ${PathPart})
+endmacro()
+cmake_to_msys_path(${LIBDIR} mingw_LIBDIR)
+message("mingw_LIBDIR = ${mingw_LIBDIR}")
+
+message("Checking for mingw64")
+# download ming64
+if(NOT EXISTS "${DOWNLOAD_DIR}/x86_64-w64-mingw32-gcc-4.8.0-win64_rubenvb.7z")
+	message("Downloading mingw64")
+	file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/mingw-w64/Toolchains%20targetting%20Win64/Personal%20Builds/rubenvb/gcc-4.8-release/x86_64-w64-mingw32-gcc-4.8.0-win64_rubenvb.7z" "${DOWNLOAD_DIR}/x86_64-w64-mingw32-gcc-4.8.0-win64_rubenvb.7z")
+endif()
+
+# make mingw root directory
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E make_directory ${DOWNLOAD_DIR}/mingw
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}
+	)
+endif()
+
+# extract mingw64
+if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/mingw64env.cmd") AND (EXISTS "${DOWNLOAD_DIR}/x86_64-w64-mingw32-gcc-4.8.0-win64_rubenvb.7z"))
+	message("Extracting mingw64")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf ${DOWNLOAD_DIR}/x86_64-w64-mingw32-gcc-4.8.0-win64_rubenvb.7z
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/mingw
+	)
+endif()
+
+message("Checking for pkg-config")
+if(NOT EXISTS "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip")
+	message("Downloading pkg-config")
+	file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/pkgconfiglite/0.28-1/pkg-config-lite-0.28-1_bin-win32.zip" "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip")
+endif()
+
+# extract pkgconfig
+if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/pkg-config.exe") AND (EXISTS "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip"))
+	message("Extracting pkg-config")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1_bin-win32.zip"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/
+	)
+
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/pkg-config-lite-0.28-1/bin/pkg-config.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/pkg-config.exe"
+	)
+
+endif()
+
+message("Checking for nasm")
+if(NOT EXISTS "${DOWNLOAD_DIR}/nasm-2.12.01-win64.zip")
+	message("Downloading nasm")
+	file(DOWNLOAD "http://www.nasm.us/pub/nasm/releasebuilds/2.12.01/win64/nasm-2.12.01-win64.zip" "${DOWNLOAD_DIR}/nasm-2.12.01-win64.zip")
+endif()
+
+# extract nasm
+if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/nasm.exe") AND (EXISTS "${DOWNLOAD_DIR}/nasm-2.12.01-win64.zip"))
+	message("Extracting nasm")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf "${DOWNLOAD_DIR}/nasm-2.12.01-win64.zip"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/
+	)
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/nasm-2.12.01/nasm.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/nasm.exe"
+	)
+
+endif()
+
+message("Checking for mingwGet")
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip")
+	message("Downloading mingw-get")
+	file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/mingw/Installer/mingw-get/mingw-get-0.6.2-beta-20131004-1/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip" "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip")
+endif()
+
+# extract mingw_get
+if((NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/mingw-get.exe") AND (EXISTS "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip"))
+	message("Extracting mingw-get")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf "${DOWNLOAD_DIR}/mingw-get-0.6.2-mingw32-beta-20131004-1-bin.zip"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/mingw/mingw64/
+	)
+endif()
+
+if((EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/mingw-get.exe") AND (NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/make.exe"))
+	message("Installing MSYS")
+	execute_process(
+		COMMAND ${DOWNLOAD_DIR}/mingw/mingw64/bin/mingw-get install msys msys-patch
+		WORKING_DIRECTORY  ${DOWNLOAD_DIR}/mingw/mingw64/bin/
+	)
+endif()
+
+message("Checking for CoreUtils")
+# download old core_utils for pr.exe (ffmpeg needs it to build)
+if(NOT EXISTS "${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2")
+	message("Downloading CoreUtils 5.97")
+	file(DOWNLOAD "https://nchc.dl.sourceforge.net/project/mingw/MSYS/Base/msys-core/_obsolete/coreutils-5.97-MSYS-1.0.11-2/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2" "${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2")
+endif()
+
+if((EXISTS "${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2") AND (NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/pr.exe"))
+	message("Installing pr from CoreUtils 5.97")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E make_directory ${DOWNLOAD_DIR}/tmp_coreutils
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}
+	)
+
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf ${DOWNLOAD_DIR}/coreutils-5.97-MSYS-1.0.11-snapshot.tar.bz2
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/tmp_coreutils/
+	)
+
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy ${DOWNLOAD_DIR}/tmp_coreutils/coreutils-5.97/bin/pr.exe "${DOWNLOAD_DIR}/mingw/mingw64/msys/1.0/bin/pr.exe"
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/tmp_coreutils/
+	)
+endif()
+
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/ming64sh.cmd")
+	message("Installing ming64sh.cmd")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/ming64sh.cmd  ${DOWNLOAD_DIR}/mingw/mingw64/ming64sh.cmd
+	)
+endif()
+
+message("Checking for perl")
+# download perl for libvpx
+if(NOT EXISTS "${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-64bit-portable.zip")
+	message("Downloading perl")
+	file(DOWNLOAD "http://strawberryperl.com/download/5.22.1.3/strawberry-perl-5.22.1.3-64bit-portable.zip" "${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-64bit-portable.zip")
+endif()
+
+# make perl root directory
+if(NOT EXISTS "${DOWNLOAD_DIR}/perl")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E make_directory ${DOWNLOAD_DIR}/perl
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}
+	)
+endif()
+
+# extract perl
+if((NOT EXISTS "${DOWNLOAD_DIR}/perl/portable.perl") AND (EXISTS "${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-64bit-portable.zip"))
+	message("Extracting perl")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E tar jxf ${DOWNLOAD_DIR}/strawberry-perl-5.22.1.3-64bit-portable.zip
+		WORKING_DIRECTORY ${DOWNLOAD_DIR}/perl
+	)
+endif()
+
+# get yasm for vpx
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/yasm.exe")
+	message("Downloading yasm")
+	file(DOWNLOAD "http://www.tortall.net/projects/yasm/releases/yasm-1.3.0-win64.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/yasm.exe")
+endif()
+
+message("checking x86_64-w64-mingw32-strings.exe")
+# copy strings.exe to x86_64-w64-mingw32-strings.exe for x264
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-strings.exe")
+	message("fixing x86_64-w64-mingw32-strings.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw64/bin/strings.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-strings.exe"
+	)
+endif()
+
+message("checking x86_64-w64-mingw32-ar.exe")
+# copy ar.exe to x86_64-w64-mingw32-ar.exe for x264
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-ar.exe")
+	message("fixing x86_64-w64-mingw32-ar.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw64/bin/ar.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-ar.exe"
+	)
+endif()
+
+message("checking x86_64-w64-mingw32-strip.exe")
+# copy strip.exe to x86_64-w64-mingw32-strip.exe for x264
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-strip.exe")
+	message("fixing x86_64-w64-mingw32-strip.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw64/bin/strip.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-strip.exe"
+	)
+endif()
+
+message("checking x86_64-w64-mingw32-ranlib.exe")
+# copy ranlib.exe to x86_64-w64-mingw32-ranlib.exe for x264
+if(NOT EXISTS "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-ranlib.exe")
+	message("fixing x86_64-w64-mingw32-ranlib.exe")
+	execute_process(
+		COMMAND ${CMAKE_COMMAND} -E copy "${DOWNLOAD_DIR}/mingw/mingw64/bin/ranlib.exe" "${DOWNLOAD_DIR}/mingw/mingw64/bin/x86_64-w64-mingw32-ranlib.exe"
+	)
+endif()
+
diff --git a/build_files/build_environment/cmake/sndfile.cmake b/build_files/build_environment/cmake/sndfile.cmake
new file mode 100644
index 00000000000..ce10f07c133
--- /dev/null
+++ b/build_files/build_environment/cmake/sndfile.cmake
@@ -0,0 +1,55 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(SNDFILE_EXTRA_ARGS)
+set(SNDFILE_ENV PKG_CONFIG_PATH=${mingw_LIBDIR}/ogg/lib/pkgconfig:${mingw_LIBDIR}/vorbis/lib/pkgconfig:${mingw_LIBDIR}/flac/lib/pkgconfig:${mingw_LIBDIR})
+
+if(WIN32)
+	set(SNDFILE_ENV set ${SNDFILE_ENV} &&)
+	#shared for windows because static libs will drag in a libgcc dependency.
+	set(SNDFILE_OPTIONS --disable-static --enable-shared )
+else()
+	set(SNDFILE_OPTIONS --enable-static --disable-shared )
+endif()
+
+if(APPLE)
+	set(SNDFILE_PATCH_CMD ${PATCH_CMD} --verbose -p 0 -d ${BUILD_DIR}/sndfile/src/external_sndfile < ${PATCH_DIR}/sndfile.diff)
+else()
+	set(SNDFILE_PATCH_CMD)
+endif()
+
+ExternalProject_Add(external_sndfile
+	URL ${SNDFILE_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${SNDFILE_HASH}
+	PREFIX ${BUILD_DIR}/sndfile
+	PATCH_COMMAND ${SNDFILE_PATCH_CMD}
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/sndfile/src/external_sndfile/ && ${SNDFILE_ENV} ${CONFIGURE_COMMAND} ${SNDFILE_OPTIONS} --prefix=${mingw_LIBDIR}/sndfile
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/sndfile/src/external_sndfile/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/sndfile/src/external_sndfile/ && make install
+	INSTALL_DIR ${LIBDIR}/sndfile
+)
+
+if(MSVC)
+	set_target_properties(external_sndfile PROPERTIES FOLDER Mingw)
+endif()
+
+add_dependencies(external_sndfile external_ogg external_vorbis)
+if(UNIX)
+	add_dependencies(external_sndfile external_flac)
+endif()
diff --git a/build_files/build_environment/cmake/spnav.cmake b/build_files/build_environment/cmake/spnav.cmake
new file mode 100644
index 00000000000..0dec9799715
--- /dev/null
+++ b/build_files/build_environment/cmake/spnav.cmake
@@ -0,0 +1,28 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+ExternalProject_Add(external_spnav
+	URL ${SPNAV_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${SPNAV_HASH}
+	PREFIX ${BUILD_DIR}/spnav
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/spnav/src/external_spnav/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/spnav --disable-shared --enable-static --with-pic
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/spnav/src/external_spnav/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/spnav/src/external_spnav/ && make install
+	INSTALL_DIR ${LIBDIR}/spnav
+)
diff --git a/build_files/build_environment/cmake/tbb.cmake b/build_files/build_environment/cmake/tbb.cmake
new file mode 100644
index 00000000000..c4055d55648
--- /dev/null
+++ b/build_files/build_environment/cmake/tbb.cmake
@@ -0,0 +1,36 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(TBB_EXTRA_ARGS
+	-DTBB_BUILD_SHARED=Off
+	-DTBB_BUILD_TBBMALLOC=Off
+	-DTBB_BUILD_TBBMALLOC_PROXY=Off
+	-DTBB_BUILD_STATIC=On
+)
+
+# CMake script for TBB from https://github.com/wjakob/tbb/blob/master/CMakeLists.txt
+ExternalProject_Add(external_tbb
+	URL ${TBB_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${TBB_HASH}
+	PREFIX ${BUILD_DIR}/tbb
+	PATCH_COMMAND COMMAND ${CMAKE_COMMAND} -E copy ${PATCH_DIR}/cmakelists_tbb.txt ${BUILD_DIR}/tbb/src/external_tbb/CMakeLists.txt &&
+		${CMAKE_COMMAND} -E copy ${BUILD_DIR}/tbb/src/external_tbb/build/vs2010/version_string.ver ${BUILD_DIR}/tbb/src/external_tbb/src/tbb/version_string.ver
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/tbb ${DEFAULT_CMAKE_FLAGS} ${TBB_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/tbb
+)
diff --git a/build_files/build_environment/cmake/theora.cmake b/build_files/build_environment/cmake/theora.cmake
new file mode 100644
index 00000000000..03aad42f2db
--- /dev/null
+++ b/build_files/build_environment/cmake/theora.cmake
@@ -0,0 +1,40 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+ExternalProject_Add(external_theora
+	URL ${THEORA_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${THEORA_HASH}
+	PREFIX ${BUILD_DIR}/theora
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/theora/src/external_theora/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/theora
+		--disable-shared
+		--enable-static
+		--with-pic
+		--with-ogg=${LIBDIR}/ogg
+		--with-vorbis=${LIBDIR}/vorbis
+		--disable-examples
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/theora/src/external_theora/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/theora/src/external_theora/ && make install
+	INSTALL_DIR ${LIBDIR}/theora
+)
+
+add_dependencies(external_theora external_vorbis external_ogg)
+
+if(MSVC)
+	set_target_properties(external_theora PROPERTIES FOLDER Mingw)
+endif()
diff --git a/build_files/build_environment/cmake/tiff.cmake b/build_files/build_environment/cmake/tiff.cmake
new file mode 100644
index 00000000000..2c01341eb21
--- /dev/null
+++ b/build_files/build_environment/cmake/tiff.cmake
@@ -0,0 +1,44 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(TIFF_EXTRA_ARGS
+	-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+	-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include
+	-DPNG_STATIC=ON
+	-DBUILD_SHARED_LIBS=OFF
+	-Dlzma=OFF
+	-Djbig=OFF
+)
+
+ExternalProject_Add(external_tiff
+	URL ${TIFF_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${TIFF_HASH}
+	PREFIX ${BUILD_DIR}/tiff
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/tiff ${DEFAULT_CMAKE_FLAGS} ${TIFF_EXTRA_ARGS}
+	INSTALL_DIR ${LIBDIR}/tiff
+)
+
+add_dependencies(external_tiff external_zlib)
+
+if(BUILD_MODE STREQUAL Debug)
+	ExternalProject_Add_Step(external_tiff after_install
+		COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/tiff/lib/tiffd${LIBEXT} ${LIBDIR}/tiff/lib/tiff${LIBEXT}
+		DEPENDEES install
+	)
+endif()
diff --git a/build_files/build_environment/cmake/versions.cmake b/build_files/build_environment/cmake/versions.cmake
new file mode 100644
index 00000000000..e53beeddf4a
--- /dev/null
+++ b/build_files/build_environment/cmake/versions.cmake
@@ -0,0 +1,250 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(ZLIB_VERSION 1.2.8)
+set(ZLIB_URI https://netcologne.dl.sourceforge.net/project/libpng/zlib/${ZLIB_VERSION}/zlib-${ZLIB_VERSION}.tar.gz)
+set(ZLIB_HASH 44d667c142d7cda120332623eab69f40)
+
+set(OPENAL_VERSION 1.17.2)
+set(OPENAL_URI http://kcat.strangesoft.net/openal-releases/openal-soft-${OPENAL_VERSION}.tar.bz2)
+set(OPENAL_HASH 1764e0d8fec499589b47ebc724e0913d)
+
+set(PNG_VERSION 1.6.21)
+set(PNG_URI http://prdownloads.sourceforge.net/libpng/libpng-${PNG_VERSION}.tar.gz)
+set(PNG_HASH aca36ec8e0a3b406a5912243bc243717)
+
+set(JPEG_VERSION 1.4.2)
+set(JPEG_URI https://github.com/libjpeg-turbo/libjpeg-turbo/archive/${JPEG_VERSION}.tar.gz)
+set(JPEG_HASH f9804884c1c41eb7f4febb9353a2cb27)
+
+set(BOOST_VERSION 1.60.0)
+set(BOOST_VERSION_NODOTS 1_60_0)
+set(BOOST_URI http://sourceforge.net/projects/boost/files/boost/${BOOST_VERSION}/boost_${BOOST_VERSION_NODOTS}.tar.bz2/download)
+set(BOOST_MD5 65a840e1a0b13a558ff19eeb2c4f0cbe)
+
+set(BLOSC_VERSION 1.7.1)
+set(BLOSC_URI https://github.com/Blosc/c-blosc/archive/v${BLOSC_VERSION}.zip)
+set(BLOSC_HASH ff5cc729a5a25934ef714217218eed26)
+
+set(PTHREADS_VERSION 2-9-1)
+set(PTHREADS_URI ftp://sourceware.org/pub/pthreads-win32/pthreads-w32-${PTHREADS_VERSION}-release.tar.gz)
+set(PTHREADS_SHA512 9c06e85310766834370c3dceb83faafd397da18a32411ca7645c8eb6b9495fea54ca2872f4a3e8d83cb5fdc5dea7f3f0464be5bb9af3222a6534574a184bd551)
+
+set(ILMBASE_VERSION 2.2.0)
+set(ILMBASE_URI http://download.savannah.nongnu.org/releases/openexr/ilmbase-${ILMBASE_VERSION}.tar.gz)
+set(ILMBASE_HASH b540db502c5fa42078249f43d18a4652)
+
+set(OPENEXR_VERSION 2.2.0)
+set(OPENEXR_URI http://download.savannah.nongnu.org/releases/openexr/openexr-2.2.0.tar.gz)
+set(OPENEXR_HASH b64e931c82aa3790329c21418373db4e)
+
+set(FREETYPE_VERSION 263)
+set(FREETYPE_URI http://download.savannah.gnu.org/releases/freetype/ft${FREETYPE_VERSION}.zip)
+set(FREETYPE_HASH 0db2a43301572e5c2b4a0864f237aeeb)
+
+set(GLEW_VERSION 1.13.0)
+set(GLEW_URI http://prdownloads.sourceforge.net/glew/glew/${GLEW_VERSION}/glew-${GLEW_VERSION}.tgz)
+set(GLEW_HASH 7cbada3166d2aadfc4169c4283701066)
+
+set(FREEGLUT_VERSION 3.0.0)
+set(FREEGLUT_URI http://pilotfiber.dl.sourceforge.net/project/freeglut/freeglut/${FREEGLUT_VERSION}/freeglut-${FREEGLUT_VERSION}.tar.gz)
+set(FREEGLUT_HASH 90c3ca4dd9d51cf32276bc5344ec9754)
+
+set(HDF5_VERSION 1.8.17)
+set(HDF5_URI https://support.hdfgroup.org/ftp/HDF5/releases/hdf5-1.8/hdf5-${HDF5_VERSION}/src/hdf5-${HDF5_VERSION}.tar.gz)
+set(HDF5_HASH 7d572f8f3b798a628b8245af0391a0ca)
+
+set(ALEMBIC_VERSION 1.7.1)
+set(ALEMBIC_URI https://github.com/alembic/alembic/archive/${ALEMBIC_VERSION}.zip)
+set(ALEMBIC_MD5 cf7705055501d5ea0cb8256866496f79)
+
+## hash is for 3.1.2
+set(GLFW_GIT_UID 30306e54705c3adae9fe082c816a3be71963485c)
+set(GLFW_URI https://github.com/glfw/glfw/archive/${GLFW_GIT_UID}.zip)
+set(GLFW_HASH 20cacb1613da7eeb092f3ac4f6b2b3d0)
+
+#latest uid in git as of 2016-04-01
+set(CLEW_GIT_UID 277db43f6cafe8b27c6f1055f69dc67da4aeb299)
+set(CLEW_URI https://github.com/OpenCLWrangler/clew/archive/${CLEW_GIT_UID}.zip)
+set(CLEW_HASH 2c699d10ed78362e71f56fae2a4c5f98)
+
+#latest uid in git as of 2016-04-01
+set(CUEW_GIT_UID 1744972026de9cf27c8a7dc39cf39cd83d5f922f)
+set(CUEW_URI https://github.com/CudaWrangler/cuew/archive/${CUEW_GIT_UID}.zip)
+set(CUEW_HASH 86760d62978ebfd96cd93f5aa1abaf4a)
+
+set(OPENSUBDIV_VERSION v3_1_1)
+set(OPENSUBDIV_Hash 25a9a6a94136b0eb85ce69e9c8cb6ab3)
+set(OPENSUBDIV_URI https://github.com/PixarAnimationStudios/OpenSubdiv/archive/${OPENSUBDIV_VERSION}.zip)
+
+set(SDL_VERSION 2.0.4)
+set(SDL_URI https://www.libsdl.org/release/SDL2-${SDL_VERSION}.tar.gz)
+set(SDL_HASH 44fc4a023349933e7f5d7a582f7b886e)
+
+set(OPENCOLLADA_VERSION v1.6.51)
+set(OPENCOLLADA_URI https://github.com/KhronosGroup/OpenCOLLADA/archive/${OPENCOLLADA_VERSION}.tar.gz)
+set(OPENCOLLADA_HASH 23db5087faed4bc4cc1dfe456c0d4701)
+
+set(OPENCOLORIO_URI https://github.com/imageworks/OpenColorIO/archive/6de971097c7f552300f669ed69ca0b6cf5a70843.zip)
+set(OPENCOLORIO_HASH c9de0fd98f26ce6f2e08d617ca68b8e4)
+
+set(LLVM_VERSION 3.4.2)
+set(LLVM_URI http://llvm.org/releases/${LLVM_VERSION}/llvm-${LLVM_VERSION}.src.tar.gz)
+set(LLVM_HASH a20669f75967440de949ac3b1bad439c)
+
+set(CLANG_URI http://llvm.org/releases/${LLVM_VERSION}/cfe-${LLVM_VERSION}.src.tar.gz)
+set(CLANG_HASH 87945973b7c73038871c5f849a818588)
+
+set(OPENIMAGEIO_VERSION 1.7.15)
+set(OPENIMAGEIO_URI https://github.com/OpenImageIO/oiio/archive/Release-${OPENIMAGEIO_VERSION}.zip)
+set(OPENIMAGEIO_HASH_178 e156e3669af0e1373142ab5e8f13de66)
+set(OPENIMAGEIO_HASH_179 4121cb0e0433bda6a7ef32c8628a149f)
+set(OPENIMAGEIO_HASH_1713 42a662775b834161ba88c6abdb299360)
+set(OPENIMAGEIO_HASH_1715 e2ece0f62c013d64c478f82265988b0b)
+set(OPENIMAGEIO_HASH ${OPENIMAGEIO_HASH_1715})
+
+
+set(TIFF_VERSION 4.0.6)
+set(TIFF_URI http://download.osgeo.org/libtiff/tiff-${TIFF_VERSION}.tar.gz)
+set(TIFF_HASH d1d2e940dea0b5ad435f21f03d96dd72)
+
+set(FLEXBISON_VERSION 2.5.5)
+set(FLEXBISON_URI http://prdownloads.sourceforge.net/winflexbison//win_flex_bison-2.5.5.zip)
+set(FLEXBISON_HASH d87a3938194520d904013abef3df10ce)
+
+set(OSL_VERSION 1.7.5)
+set(OSL_URI https://github.com/imageworks/OpenShadingLanguage/archive/Release-${OSL_VERSION}.zip)
+set(OSL_HASH 6924dd5d453159e7b6eb106a08c358cf)
+
+set(PYTHON_VERSION 3.6.2)
+set(PYTHON_SHORT_VERSION 3.6)
+set(PYTHON_SHORT_VERSION_NO_DOTS 36)
+set(PYTHON_URI https://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tar.xz)
+set(PYTHON_HASH 2c68846471994897278364fc18730dd9)
+
+set(TBB_VERSION 44_20160128)
+set(TBB_URI https://www.threadingbuildingblocks.org/sites/default/files/software_releases/source/tbb${TBB_VERSION}oss_src_0.tgz)
+set(TBB_HASH 9d8a4cdf43496f1b3f7c473a5248e5cc)
+
+set(OPENVDB_VERSION 3.1.0)
+set(OPENVDB_URI https://github.com/dreamworksanimation/openvdb/archive/v${OPENVDB_VERSION}.tar.gz)
+set(OPENVDB_HASH 30a7e9571a03ab7bcf1a39fb62aa436f)
+
+set(IDNA_VERSION 2.6)
+set(CHARDET_VERSION 3.0.2)
+set(URLLIB3_VERSION 1.22)
+set(CERTIFI_VERSION 2017.7.27.1)
+set(REQUESTS_VERSION 2.18.4)
+
+set(NUMPY_VERSION v1.13.1)
+set(NUMPY_SHORT_VERSION 1.13)
+set(NUMPY_URI https://pypi.python.org/packages/c0/3a/40967d9f5675fbb097ffec170f59c2ba19fc96373e73ad47c2cae9a30aed/numpy-1.13.1.zip)
+set(NUMPY_HASH 2c3c0f4edf720c3a7b525dacc825b9ae)
+
+set(LAME_VERSION 3.99.5)
+set(LAME_URI http://downloads.sourceforge.net/project/lame/lame/3.99/lame-${LAME_VERSION}.tar.gz)
+set(LAME_HASH 84835b313d4a8b68f5349816d33e07ce)
+
+set(OGG_VERSION 1.3.2)
+set(OGG_URI http://downloads.xiph.org/releases/ogg/libogg-${OGG_VERSION}.tar.gz)
+set(OGG_HASH e19ee34711d7af328cb26287f4137e70630e7261b17cbe3cd41011d73a654692)
+
+set(VORBIS_VERSION 1.3.5)
+set(VORBIS_URI http://downloads.xiph.org/releases/vorbis/libvorbis-${VORBIS_VERSION}.tar.gz)
+set(VORBIS_HASH 6efbcecdd3e5dfbf090341b485da9d176eb250d893e3eb378c428a2db38301ce)
+
+set(THEORA_VERSION 1.1.1)
+set(THEORA_URI http://downloads.xiph.org/releases/theora/libtheora-${THEORA_VERSION}.tar.bz2)
+set(THEORA_HASH b6ae1ee2fa3d42ac489287d3ec34c5885730b1296f0801ae577a35193d3affbc)
+
+set(FLAC_VERSION 1.3.1)
+set(FLAC_URI http://downloads.xiph.org/releases/flac/flac-${FLAC_VERSION}.tar.xz)
+set(FLAC_HASH 4773c0099dba767d963fd92143263be338c48702172e8754b9bc5103efe1c56c)
+
+set(VPX_VERSION 1.5.0)
+set(VPX_URI http://storage.googleapis.com/downloads.webmproject.org/releases/webm/libvpx-${VPX_VERSION}.tar.bz2)
+set(VPX_HASH 306d67908625675f8e188d37a81fbfafdf5068b09d9aa52702b6fbe601c76797)
+
+set(ORC_VERSION 0.4.25)
+set(ORC_URI https://gstreamer.freedesktop.org/src/orc/orc-${ORC_VERSION}.tar.xz)
+set(ORC_HASH c1b1d54a58f26d483f0b3881538984789fe5d5460ab8fab74a1cacbd3d1c53d1)
+
+set(SCHROEDINGER_VERSION 1.0.11)
+set(SCHROEDINGER_URI https://download.videolan.org/contrib/schroedinger/schroedinger-${SCHROEDINGER_VERSION}.tar.gz)
+set(SCHROEDINGER_HASH 1e572a0735b92aca5746c4528f9bebd35aa0ccf8619b22fa2756137a8cc9f912)
+
+set(X264_URI http://download.videolan.org/pub/videolan/x264/snapshots/x264-snapshot-20160401-2245-stable.tar.bz2)
+set(X264_HASH 1e9a7b835e80313aade53a9b6ff353e099de3856bf5f30a4d8dfc91281f786f5)
+
+set(XVIDCORE_VERSION 1.3.4)
+set(XVIDCORE_URI http://downloads.xvid.org/downloads/xvidcore-${XVIDCORE_VERSION}.tar.gz)
+set(XVIDCORE_HASH 4e9fd62728885855bc5007fe1be58df42e5e274497591fec37249e1052ae316f)
+
+#this has to be in sync with the version in blenders /extern folder
+set(OPENJPEG_VERSION 1.5.2)
+set(OPENJPEG_SHORT_VERSION 1.5)
+set(OPENJPEG_URI https://github.com/uclouvain/openjpeg/archive/version.${OPENJPEG_VERSION}.tar.gz)
+set(OPENJPEG_HASH 3734e95edd0bef6e056815591755efd822228dc3cd866894e00a2c929026b16d)
+
+set(FAAD_VERSION 2-2.7)
+set(FAAD_URI http://downloads.sourceforge.net/faac/faad${FAAD_VERSION}.tar.bz2)
+set(FAAD_HASH 4c332fa23febc0e4648064685a3d4332)
+
+set(FFMPEG_VERSION 3.2.1)
+set(FFMPEG_URI http://ffmpeg.org/releases/ffmpeg-${FFMPEG_VERSION}.tar.bz2)
+set(FFMPEG_HASH cede174178e61f882844f5870c35ce72)
+
+set(FFTW_VERSION 3.3.4)
+set(FFTW_URI http://www.fftw.org/fftw-${FFTW_VERSION}.tar.gz)
+set(FFTW_HASH 2edab8c06b24feeb3b82bbb3ebf3e7b3)
+
+set(ICONV_VERSION 1.14)
+set(ICONV_URI http://ftp.gnu.org/pub/gnu/libiconv/libiconv-${ICONV_VERSION}.tar.gz)
+set(ICONV_HASH e34509b1623cec449dfeb73d7ce9c6c6)
+
+set(LAPACK_VERSION 3.6.0)
+set(LAPACK_URI http://www.netlib.org/lapack/lapack-${LAPACK_VERSION}.tgz)
+set(LAPACK_HASH f2f6c67134e851fe189bb3ca1fbb5101)
+
+set(SNDFILE_VERSION 1.0.28)
+set(SNDFILE_URI http://www.mega-nerd.com/libsndfile/files/libsndfile-${SNDFILE_VERSION}.tar.gz)
+set(SNDFILE_HASH 646b5f98ce89ac60cdb060fcd398247c)
+
+#set(HIDAPI_VERSION 0.8.0-rc1)
+#set(HIDAPI_URI https://github.com/signal11/hidapi/archive/hidapi-${HIDAPI_VERSION}.tar.gz)
+#set(HIDAPI_HASH 069f9dd746edc37b6b6d0e3656f47199)
+
+set(HIDAPI_UID 89a6c75dc6f45ecabd4ddfbd2bf5ba6ad8ba38b5)
+set(HIDAPI_URI https://github.com/TheOnlyJoey/hidapi/archive/${HIDAPI_UID}.zip)
+set(HIDAPI_HASH b6e22f6b514f8bcf594989f20ffc46fb)
+
+set(WEBP_VERSION 0.5.1)
+set(WEBP_URI https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-${WEBP_VERSION}.tar.gz)
+set(WEBP_HASH 3d7db92ebba5b4f679413d25c6040881)
+
+set(SPNAV_VERSION 0.2.3)
+set(SPNAV_URI http://downloads.sourceforge.net/project/spacenav/spacenav%20library%20%28SDK%29/libspnav%20${SPNAV_VERSION}/libspnav-${SPNAV_VERSION}.tar.gz)
+set(SPNAV_HASH 44d840540d53326d4a119c0f1aa7bf0a)
+
+set(JEMALLOC_VERSION 5.0.1)
+set(JEMALLOC_URI https://github.com/jemalloc/jemalloc/releases/download/${JEMALLOC_VERSION}/jemalloc-${JEMALLOC_VERSION}.tar.bz2)
+set(JEMALLOC_HASH 507f7b6b882d868730d644510491d18f)
+
+set(XML2_VERSION 2.9.4)
+set(XML2_URI ftp://xmlsoft.org/libxml2/libxml2-${XML2_VERSION}.tar.gz)
+set(XML2_HASH ae249165c173b1ff386ee8ad676815f5)
diff --git a/build_files/build_environment/cmake/vorbis.cmake b/build_files/build_environment/cmake/vorbis.cmake
new file mode 100644
index 00000000000..d16c7c6a1bc
--- /dev/null
+++ b/build_files/build_environment/cmake/vorbis.cmake
@@ -0,0 +1,38 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+ExternalProject_Add(external_vorbis
+	URL ${VORBIS_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${VORBIS_HASH}
+	PREFIX ${BUILD_DIR}/vorbis
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/vorbis/src/external_vorbis/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/vorbis
+		--disable-shared
+		--enable-static
+		--with-pic
+		--with-ogg=${LIBDIR}/ogg
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/vorbis/src/external_vorbis/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/vorbis/src/external_vorbis/ && make install
+	INSTALL_DIR ${LIBDIR}/vorbis
+)
+
+add_dependencies(external_vorbis external_ogg)
+
+if(MSVC)
+	set_target_properties(external_vorbis PROPERTIES FOLDER Mingw)
+endif()
diff --git a/build_files/build_environment/cmake/vpx.cmake b/build_files/build_environment/cmake/vpx.cmake
new file mode 100644
index 00000000000..9d155be1c6c
--- /dev/null
+++ b/build_files/build_environment/cmake/vpx.cmake
@@ -0,0 +1,60 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(WIN32)
+	if("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
+		set(VPX_EXTRA_FLAGS --target=x86_64-win64-gcc)
+	else()
+		set(VPX_EXTRA_FLAGS --target=x86-win32-gcc)
+	endif()
+else()
+	if(APPLE)
+		set(VPX_EXTRA_FLAGS --target=x86_64-darwin13-gcc)
+	else()
+		set(VPX_EXTRA_FLAGS --target=generic-gnu)
+	endif()
+endif()
+
+ExternalProject_Add(external_vpx
+	URL ${VPX_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${VPX_HASH}
+	PREFIX ${BUILD_DIR}/vpx
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} &&
+		cd ${BUILD_DIR}/vpx/src/external_vpx/ &&
+		${CONFIGURE_COMMAND_NO_TARGET} --prefix=${LIBDIR}/vpx
+			--disable-shared
+			--enable-static
+			--disable-install-bins
+			--disable-install-srcs
+			--disable-sse4_1
+			--disable-sse3
+			--disable-ssse3
+			--disable-avx
+			--disable-avx2
+			--disable-unit-tests
+			--disable-examples
+			${VPX_EXTRA_FLAGS}
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/vpx/src/external_vpx/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/vpx/src/external_vpx/ && make install
+	INSTALL_DIR ${LIBDIR}/vpx
+)
+
+if(MSVC)
+	set_target_properties(external_vpx PROPERTIES FOLDER Mingw)
+endif()
diff --git a/build_files/build_environment/cmake/webp.cmake b/build_files/build_environment/cmake/webp.cmake
new file mode 100644
index 00000000000..0504988a088
--- /dev/null
+++ b/build_files/build_environment/cmake/webp.cmake
@@ -0,0 +1,50 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+# Note the utility apps may use png/tiff/gif system libraries, but the
+# library itself does not depend on them, so should give no problems.
+
+set(WEBP_EXTRA_ARGS
+	-DWEBP_HAVE_SSE2=ON
+	-DWEBP_HAVE_SSE41=OFF
+	-DWEBP_HAVE_AVX2=OFF
+)
+
+if(WIN32)
+	set(WEBP_BUILD_DIR ${BUILD_MODE}/)
+else()
+	set(WEBP_BUILD_DIR)
+endif()
+
+ExternalProject_Add(external_webp
+	URL ${WEBP_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${WEBP_HASH}
+	PREFIX ${BUILD_DIR}/webp
+	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/webp -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${WEBP_EXTRA_ARGS}
+	INSTALL_COMMAND COMMAND ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/webp/src/external_webp-build/${WEBP_BUILD_DIR}${LIBPREFIX}webp${LIBEXT} ${LIBDIR}/webp/lib/${LIBPREFIX}webp${LIBEXT} &&
+		${CMAKE_COMMAND} -E copy ${BUILD_DIR}/webp/src/external_webp/src/webp/decode.h ${LIBDIR}/webp/include/webp/decode.h &&
+		${CMAKE_COMMAND} -E copy ${BUILD_DIR}/webp/src/external_webp/src/webp/encode.h ${LIBDIR}/webp/include/webp/encode.h &&
+		${CMAKE_COMMAND} -E copy ${BUILD_DIR}/webp/src/external_webp/src/webp/demux.h ${LIBDIR}/webp/include/webp/demux.h &&
+		${CMAKE_COMMAND} -E copy ${BUILD_DIR}/webp/src/external_webp/src/webp/extras.h ${LIBDIR}/webp/include/webp/extras.h &&
+		${CMAKE_COMMAND} -E copy ${BUILD_DIR}/webp/src/external_webp/src/webp/format_constants.h ${LIBDIR}/webp/include/webp/format_constants.h &&
+		${CMAKE_COMMAND} -E copy ${BUILD_DIR}/webp/src/external_webp/src/webp/mux.h ${LIBDIR}/webp/include/webp/mux.h &&
+		${CMAKE_COMMAND} -E copy ${BUILD_DIR}/webp/src/external_webp/src/webp/mux_types.h ${LIBDIR}/webp/include/webp/mux_types.h &&
+		${CMAKE_COMMAND} -E copy ${BUILD_DIR}/webp/src/external_webp/src/webp/types.h ${LIBDIR}/webp/include/webp/types.h
+	INSTALL_DIR ${LIBDIR}/webp
+)
diff --git a/build_files/build_environment/cmake/x264.cmake b/build_files/build_environment/cmake/x264.cmake
new file mode 100644
index 00000000000..64029ca1b5e
--- /dev/null
+++ b/build_files/build_environment/cmake/x264.cmake
@@ -0,0 +1,40 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(WIN32)
+	set(X264_EXTRA_ARGS --enable-win32thread --cross-prefix=${MINGW_HOST}- --host=${MINGW_HOST})
+endif()
+
+ExternalProject_Add(external_x264
+	URL ${X264_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${X264_HASH}
+	PREFIX ${BUILD_DIR}/x264
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/x264/src/external_x264/ && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/x264 
+		--enable-static
+		--enable-pic
+		--disable-lavf
+		${X264_EXTRA_ARGS}
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/x264/src/external_x264/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/x264/src/external_x264/ && make install
+	INSTALL_DIR ${LIBDIR}/x264
+)
+
+if(MSVC)
+	set_target_properties(external_x264 PROPERTIES FOLDER Mingw)
+endif()
diff --git a/build_files/build_environment/cmake/xml2.cmake b/build_files/build_environment/cmake/xml2.cmake
new file mode 100644
index 00000000000..a8f87a67ad4
--- /dev/null
+++ b/build_files/build_environment/cmake/xml2.cmake
@@ -0,0 +1,36 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+ExternalProject_Add(external_xml2
+	URL ${XML2_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH MD5=${XML2_HASH}
+	PREFIX ${BUILD_DIR}/xml2
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/xml2/src/external_xml2/ && ${CONFIGURE_COMMAND}
+		--prefix=${LIBDIR}/xml2
+		--disable-shared
+		--enable-static
+		--with-pic
+		--with-python=no
+		--with-lzma=no
+		--with-zlib=no
+		--with-iconv=no
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/xml2/src/external_xml2/ && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/xml2/src/external_xml2/ && make install
+	INSTALL_DIR ${LIBDIR}/xml2
+)
diff --git a/build_files/build_environment/cmake/xvidcore.cmake b/build_files/build_environment/cmake/xvidcore.cmake
new file mode 100644
index 00000000000..a341275ea47
--- /dev/null
+++ b/build_files/build_environment/cmake/xvidcore.cmake
@@ -0,0 +1,44 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+if(WIN32)
+	set(XVIDCORE_EXTRA_ARGS --host=${MINGW_HOST})
+endif()
+
+ExternalProject_Add(external_xvidcore
+	URL ${XVIDCORE_URI}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	URL_HASH SHA256=${XVIDCORE_HASH}
+	PREFIX ${BUILD_DIR}/xvidcore
+	CONFIGURE_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/xvidcore/src/external_xvidcore/build/generic && ${CONFIGURE_COMMAND} --prefix=${LIBDIR}/xvidcore ${XVIDCORE_EXTRA_ARGS}
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/xvidcore/src/external_xvidcore/build/generic && make -j${MAKE_THREADS}
+	INSTALL_COMMAND ${CONFIGURE_ENV} &&
+	${CMAKE_COMMAND} -E remove ${LIBDIR}/xvidcore/lib/* && # clean because re-installing fails otherwise
+	cd ${BUILD_DIR}/xvidcore/src/external_xvidcore/build/generic && make install
+	INSTALL_DIR ${LIBDIR}/xvidcore
+)
+
+ExternalProject_Add_Step(external_xvidcore after_install
+	COMMAND ${CMAKE_COMMAND} -E rename ${LIBDIR}/xvidcore/lib/xvidcore.a ${LIBDIR}/xvidcore/lib/libxvidcore.a || true
+	COMMAND ${CMAKE_COMMAND} -E remove ${LIBDIR}/xvidcore/lib/xvidcore.dll.a
+	DEPENDEES install
+)
+
+if(MSVC)
+	set_target_properties(external_xvidcore PROPERTIES FOLDER Mingw)
+endif()
diff --git a/build_files/build_environment/cmake/zlib.cmake b/build_files/build_environment/cmake/zlib.cmake
new file mode 100644
index 00000000000..3307cb1f167
--- /dev/null
+++ b/build_files/build_environment/cmake/zlib.cmake
@@ -0,0 +1,33 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+ExternalProject_Add(external_zlib
+	URL ${ZLIB_URI}
+	URL_HASH MD5=${ZLIB_HASH}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	PREFIX ${BUILD_DIR}/zlib
+	CMAKE_ARGS -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_INSTALL_PREFIX=${LIBDIR}/zlib ${DEFAULT_CMAKE_FLAGS}
+	INSTALL_DIR ${LIBDIR}/zlib
+)
+
+if(BUILD_MODE STREQUAL Debug)
+	ExternalProject_Add_Step(external_zlib after_install
+		COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/zlib/lib/zlibstaticd${LIBEXT} ${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+		DEPENDEES install
+	)
+endif()
diff --git a/build_files/build_environment/cmake/zlib_mingw.cmake b/build_files/build_environment/cmake/zlib_mingw.cmake
new file mode 100644
index 00000000000..13345f29ffa
--- /dev/null
+++ b/build_files/build_environment/cmake/zlib_mingw.cmake
@@ -0,0 +1,40 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+ExternalProject_Add(external_zlib_mingw
+	URL ${ZLIB_URI}
+	URL_HASH MD5=${ZLIB_HASH}
+	DOWNLOAD_DIR ${DOWNLOAD_DIR}
+	PREFIX ${BUILD_DIR}/zlib_mingw
+	CONFIGURE_COMMAND echo .
+	BUILD_COMMAND ${CONFIGURE_ENV} && cd ${BUILD_DIR}/zlib_mingw/src/external_zlib_mingw/ && make -f win32/makefile.gcc -j${MAKE_THREADS}
+	INSTALL_COMMAND echo .
+	INSTALL_DIR ${LIBDIR}/zlib_mingw
+)
+
+if(BUILD_MODE STREQUAL Release)
+	ExternalProject_Add_Step(external_zlib_mingw after_install
+		COMMAND ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/zlib_mingw/src/external_zlib_mingw/libz.a ${LIBDIR}/zlib/lib/z.lib
+		DEPENDEES install
+	)
+endif()
+
+if(MSVC)
+	set_target_properties(external_zlib_mingw PROPERTIES FOLDER Mingw)
+endif()
+
diff --git a/build_files/build_environment/install_deps.sh b/build_files/build_environment/install_deps.sh
index 3852b4fe705..6e2910731bb 100755
--- a/build_files/build_environment/install_deps.sh
+++ b/build_files/build_environment/install_deps.sh
@@ -292,13 +292,13 @@ NO_BUILD=false
 NO_CONFIRM=false
 USE_CXX11=false
 
-PYTHON_VERSION="3.5.3"
-PYTHON_VERSION_MIN="3.5"
+PYTHON_VERSION="3.6.2"
+PYTHON_VERSION_MIN="3.6"
 PYTHON_FORCE_BUILD=false
 PYTHON_FORCE_REBUILD=false
 PYTHON_SKIP=false
 
-NUMPY_VERSION="1.10.1"
+NUMPY_VERSION="1.13.1"
 NUMPY_VERSION_MIN="1.8"
 NUMPY_FORCE_BUILD=false
 NUMPY_FORCE_REBUILD=false
@@ -739,7 +739,7 @@ PRINT ""
 
 # This has to be done here, because user might force some versions...
 PYTHON_SOURCE=( "https://www.python.org/ftp/python/$PYTHON_VERSION/Python-$PYTHON_VERSION.tgz" )
-NUMPY_SOURCE=( "http://sourceforge.net/projects/numpy/files/NumPy/$NUMPY_VERSION/numpy-$NUMPY_VERSION.tar.gz" )
+NUMPY_SOURCE=( "https://github.com/numpy/numpy/releases/download/v$NUMPY_VERSION/numpy-$NUMPY_VERSION.tar.gz" )
 
 _boost_version_nodots=`echo "$BOOST_VERSION" | sed -r 's/\./_/g'`
 BOOST_SOURCE=( "http://sourceforge.net/projects/boost/files/boost/$BOOST_VERSION/boost_$_boost_version_nodots.tar.bz2/download" )
@@ -1599,7 +1599,7 @@ compile_OIIO() {
   fi
 
   # To be changed each time we make edits that would modify the compiled result!
-  oiio_magic=16
+  oiio_magic=17
   _init_oiio
 
   # Clean install if needed!
@@ -1663,6 +1663,9 @@ compile_OIIO() {
       INFO "ILMBASE_HOME=$INST/openexr"
     fi
 
+    # ptex is only needed when nicholas bishop is ready
+    cmake_d="$cmake_d -D USE_PTEX=OFF"
+
     # Optional tests and cmd tools
     cmake_d="$cmake_d -D USE_QT=OFF"
     cmake_d="$cmake_d -D USE_PYTHON=OFF"
@@ -1774,7 +1777,7 @@ compile_LLVM() {
       cd $_src
 
       # XXX Ugly patching hack!
-      patch -p1 -i "$SCRIPT_DIR/install_deps_patches/llvm.patch"
+      patch -p1 -i "$SCRIPT_DIR/patches/install_deps_llvm.diff"
 
       cd $CWD
 
@@ -1880,7 +1883,7 @@ compile_OSL() {
       git reset --hard
 
       # XXX Ugly patching hack!
-      patch -p1 -i "$SCRIPT_DIR/install_deps_patches/osl.patch"
+      patch -p1 -i "$SCRIPT_DIR/patches/install_deps_osl.diff"
     fi
 
     # Always refresh the whole build!
diff --git a/build_files/build_environment/patches/alembic.diff b/build_files/build_environment/patches/alembic.diff
new file mode 100644
index 00000000000..f869858efb2
--- /dev/null
+++ b/build_files/build_environment/patches/alembic.diff
@@ -0,0 +1,35 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 3e09c57..26565ae 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -116,7 +116,7 @@ IF (NOT ${ALEMBIC_LIB_USES_TR1} AND NOT ${ALEMBIC_LIB_USES_BOOST})
+     INCLUDE(CheckCXXCompilerFlag)
+     CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
+     CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPILER_SUPPORTS_CXX0X)
+-    IF (COMPILER_SUPPORTS_CXX1X)
++    IF (COMPILER_SUPPORTS_CXX11)
+         SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+     ELSEIF (COMPILER_SUPPORTS_CXX0X)
+         SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
+--- a/lib/Alembic/AbcCoreOgawa/StreamManager.cpp
++++ b/lib/Alembic/AbcCoreOgawa/StreamManager.cpp
+@@ -47,7 +47,18 @@
+ #define COMPARE_EXCHANGE( V, COMP, EXCH ) V.compare_exchange_weak( COMP, EXCH, std::memory_order_seq_cst, std::memory_order_seq_cst )
+ // Windows
+ #elif defined( _MSC_VER )
+-#define COMPARE_EXCHANGE( V, COMP, EXCH ) InterlockedCompareExhange64( &V, EXCH, COMP ) == COMP
++#define COMPARE_EXCHANGE( V, COMP, EXCH ) InterlockedCompareExchange64( &V, EXCH, COMP ) == COMP
++int ffsll(long	long value)
++{
++	if (!value)
++		return 0;
++
++	for (int bit = 0; bit < 63; bit++)
++	{
++		if (value & (1 << bit))
++			return bit + 1;
++	}
++}
+ // gcc 4.8 and above not using C++11
+ #elif defined(__GNUC__) && __GNUC__ >= 4 && __GNUC_MINOR__ >= 8
+ #define COMPARE_EXCHANGE( V, COMP, EXCH ) __atomic_compare_exchange_n( &V, &COMP, EXCH, false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST )
diff --git a/build_files/build_environment/patches/blosc.diff b/build_files/build_environment/patches/blosc.diff
new file mode 100644
index 00000000000..3bd6ef28144
--- /dev/null
+++ b/build_files/build_environment/patches/blosc.diff
@@ -0,0 +1,33 @@
+diff -Naur src/blosc/CMakeLists.txt external_blosc/blosc/CMakeLists.txt
+--- src/blosc/CMakeLists.txt	2016-02-03 10:26:28 -0700
++++ external_blosc/blosc/CMakeLists.txt	2017-03-03 09:03:31 -0700
+@@ -61,6 +61,8 @@
+         set(SOURCES ${SOURCES} win32/pthread.c)
+     else(NOT Threads_FOUND)
+         set(LIBS ${LIBS} ${CMAKE_THREAD_LIBS_INIT})
++        set(LIBS ${LIBS} ${PTHREAD_LIBS})
++        include_directories( ${PTHREAD_INCLUDE_DIR} )
+     endif(NOT Threads_FOUND)
+ else(WIN32)
+     find_package(Threads REQUIRED)
+diff -Naur src/blosc/blosc.c external_blosc/blosc/blosc.c
+--- src/blosc/blosc.c	2016-02-03 10:26:28 -0700
++++ external_blosc/blosc/blosc.c	2017-03-03 09:01:50 -0700
+@@ -49,12 +49,12 @@
+   #include <inttypes.h>
+ #endif  /* _WIN32 */
+ 
+-#if defined(_WIN32) && !defined(__GNUC__)
+-  #include "win32/pthread.h"
+-  #include "win32/pthread.c"
+-#else
++//#if defined(_WIN32) && !defined(__GNUC__)
++//  #include "win32/pthread.h"
++  //#include "win32/pthread.c"
++//#else
+   #include <pthread.h>
+-#endif
++//#endif
+ 
+ /* If C11 is supported, use it's built-in aligned allocation. */
+ #if __STDC_VERSION__ >= 201112L
diff --git a/build_files/build_environment/patches/clang.diff b/build_files/build_environment/patches/clang.diff
new file mode 100644
index 00000000000..724e92f8163
--- /dev/null
+++ b/build_files/build_environment/patches/clang.diff
@@ -0,0 +1,127 @@
+--- cfe/trunk/lib/Serialization/ASTWriter.cpp
++++ cfe/trunk/lib/Serialization/ASTWriter.cpp
+@@ -56,14 +56,14 @@
+ using namespace clang::serialization;
+ 
+ template <typename T, typename Allocator>
+-static StringRef bytes(const std::vector<T, Allocator> &v) {
++static StringRef data(const std::vector<T, Allocator> &v) {
+   if (v.empty()) return StringRef();
+   return StringRef(reinterpret_cast<const char*>(&v[0]),
+                          sizeof(T) * v.size());
+ }
+ 
+ template <typename T>
+-static StringRef bytes(const SmallVectorImpl<T> &v) {
++static StringRef data(const SmallVectorImpl<T> &v) {
+   return StringRef(reinterpret_cast<const char*>(v.data()),
+                          sizeof(T) * v.size());
+ }
+@@ -1385,7 +1385,7 @@
+   Record.push_back(INPUT_FILE_OFFSETS);
+   Record.push_back(InputFileOffsets.size());
+   Record.push_back(UserFilesNum);
+-  Stream.EmitRecordWithBlob(OffsetsAbbrevCode, Record, bytes(InputFileOffsets));
++  Stream.EmitRecordWithBlob(OffsetsAbbrevCode, Record, data(InputFileOffsets));
+ }
+ 
+ //===----------------------------------------------------------------------===//
+@@ -1771,7 +1771,7 @@
+   Record.push_back(SOURCE_LOCATION_OFFSETS);
+   Record.push_back(SLocEntryOffsets.size());
+   Record.push_back(SourceMgr.getNextLocalOffset() - 1); // skip dummy
+-  Stream.EmitRecordWithBlob(SLocOffsetsAbbrev, Record, bytes(SLocEntryOffsets));
++  Stream.EmitRecordWithBlob(SLocOffsetsAbbrev, Record, data(SLocEntryOffsets));
+ 
+   // Write the source location entry preloads array, telling the AST
+   // reader which source locations entries it should load eagerly.
+@@ -2087,7 +2087,7 @@
+   Record.push_back(MacroOffsets.size());
+   Record.push_back(FirstMacroID - NUM_PREDEF_MACRO_IDS);
+   Stream.EmitRecordWithBlob(MacroOffsetAbbrev, Record,
+-                            bytes(MacroOffsets));
++                            data(MacroOffsets));
+ }
+ 
+ void ASTWriter::WritePreprocessorDetail(PreprocessingRecord &PPRec) {
+@@ -2185,7 +2185,7 @@
+     Record.push_back(PPD_ENTITIES_OFFSETS);
+     Record.push_back(FirstPreprocessorEntityID - NUM_PREDEF_PP_ENTITY_IDS);
+     Stream.EmitRecordWithBlob(PPEOffsetAbbrev, Record,
+-                              bytes(PreprocessedEntityOffsets));
++                              data(PreprocessedEntityOffsets));
+   }
+ }
+ 
+@@ -2548,7 +2548,7 @@
+   Record.push_back(CXX_BASE_SPECIFIER_OFFSETS);
+   Record.push_back(CXXBaseSpecifiersOffsets.size());
+   Stream.EmitRecordWithBlob(BaseSpecifierOffsetAbbrev, Record,
+-                            bytes(CXXBaseSpecifiersOffsets));
++                            data(CXXBaseSpecifiersOffsets));
+ }
+ 
+ //===----------------------------------------------------------------------===//
+@@ -2623,7 +2623,7 @@
+     Decls.push_back(std::make_pair((*D)->getKind(), GetDeclRef(*D)));
+ 
+   ++NumLexicalDeclContexts;
+-  Stream.EmitRecordWithBlob(DeclContextLexicalAbbrev, Record, bytes(Decls));
++  Stream.EmitRecordWithBlob(DeclContextLexicalAbbrev, Record, data(Decls));
+   return Offset;
+ }
+ 
+@@ -2642,7 +2642,7 @@
+   Record.push_back(TYPE_OFFSET);
+   Record.push_back(TypeOffsets.size());
+   Record.push_back(FirstTypeID - NUM_PREDEF_TYPE_IDS);
+-  Stream.EmitRecordWithBlob(TypeOffsetAbbrev, Record, bytes(TypeOffsets));
++  Stream.EmitRecordWithBlob(TypeOffsetAbbrev, Record, data(TypeOffsets));
+ 
+   // Write the declaration offsets array
+   Abbrev = new BitCodeAbbrev();
+@@ -2655,7 +2655,7 @@
+   Record.push_back(DECL_OFFSET);
+   Record.push_back(DeclOffsets.size());
+   Record.push_back(FirstDeclID - NUM_PREDEF_DECL_IDS);
+-  Stream.EmitRecordWithBlob(DeclOffsetAbbrev, Record, bytes(DeclOffsets));
++  Stream.EmitRecordWithBlob(DeclOffsetAbbrev, Record, data(DeclOffsets));
+ }
+ 
+ void ASTWriter::WriteFileDeclIDsMap() {
+@@ -2680,7 +2680,7 @@
+   unsigned AbbrevCode = Stream.EmitAbbrev(Abbrev);
+   Record.push_back(FILE_SORTED_DECLS);
+   Record.push_back(FileSortedIDs.size());
+-  Stream.EmitRecordWithBlob(AbbrevCode, Record, bytes(FileSortedIDs));
++  Stream.EmitRecordWithBlob(AbbrevCode, Record, data(FileSortedIDs));
+ }
+ 
+ void ASTWriter::WriteComments() {
+@@ -2893,7 +2893,7 @@
+     Record.push_back(SelectorOffsets.size());
+     Record.push_back(FirstSelectorID - NUM_PREDEF_SELECTOR_IDS);
+     Stream.EmitRecordWithBlob(SelectorOffsetAbbrev, Record,
+-                              bytes(SelectorOffsets));
++                              data(SelectorOffsets));
+   }
+ }
+ 
+@@ -3253,7 +3253,7 @@
+   Record.push_back(IdentifierOffsets.size());
+   Record.push_back(FirstIdentID - NUM_PREDEF_IDENT_IDS);
+   Stream.EmitRecordWithBlob(IdentifierOffsetAbbrev, Record,
+-                            bytes(IdentifierOffsets));
++                            data(IdentifierOffsets));
+ }
+ 
+ //===----------------------------------------------------------------------===//
+@@ -4046,7 +4046,7 @@
+   Record.clear();
+   Record.push_back(TU_UPDATE_LEXICAL);
+   Stream.EmitRecordWithBlob(TuUpdateLexicalAbbrev, Record,
+-                            bytes(NewGlobalDecls));
++                            data(NewGlobalDecls));
+   
+   // And a visible updates block for the translation unit.
+   Abv = new llvm::BitCodeAbbrev();
diff --git a/build_files/build_environment/patches/cmake/modules/FindBlosc.cmake b/build_files/build_environment/patches/cmake/modules/FindBlosc.cmake
new file mode 100644
index 00000000000..d490b7a2ff3
--- /dev/null
+++ b/build_files/build_environment/patches/cmake/modules/FindBlosc.cmake
@@ -0,0 +1,73 @@
+# - Find BLOSC library
+# Find the native BLOSC includes and library
+# This module defines
+#  BLOSC_INCLUDE_DIRS, where to find blosc.h, Set when
+#                    BLOSC is found.
+#  BLOSC_LIBRARIES, libraries to link against to use BLOSC.
+#  BLOSC_ROOT_DIR, The base directory to search for BLOSC.
+#                This can also be an environment variable.
+#  BLOSC_FOUND, If false, do not try to use BLOSC.
+#
+# also defined, but not for general use are
+#  BLOSC_LIBRARY, where to find the BLOSC library.
+
+#=============================================================================
+# Copyright 2016 Blender Foundation.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+
+# If BLOSC_ROOT_DIR was defined in the environment, use it.
+IF(NOT BLOSC_ROOT_DIR AND NOT $ENV{BLOSC_ROOT_DIR} STREQUAL "")
+  SET(BLOSC_ROOT_DIR $ENV{BLOSC_ROOT_DIR})
+ENDIF()
+
+SET(_blosc_SEARCH_DIRS
+  ${BLOSC_ROOT_DIR}
+  /usr/local
+  /sw # Fink
+  /opt/local # DarwinPorts
+  /opt/csw # Blastwave
+  /opt/lib/blosc
+)
+
+FIND_PATH(BLOSC_INCLUDE_DIR
+  NAMES
+    blosc.h
+  HINTS
+    ${_blosc_SEARCH_DIRS}
+  PATH_SUFFIXES
+    include
+)
+
+FIND_LIBRARY(BLOSC_LIBRARY
+  NAMES
+    blosc
+  HINTS
+    ${_blosc_SEARCH_DIRS}
+  PATH_SUFFIXES
+    lib64 lib
+)
+
+# handle the QUIETLY and REQUIRED arguments and set BLOSC_FOUND to TRUE if
+# all listed variables are TRUE
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(BLOSC DEFAULT_MSG
+    BLOSC_LIBRARY BLOSC_INCLUDE_DIR)
+
+IF(BLOSC_FOUND)
+  SET(BLOSC_LIBRARIES ${BLOSC_LIBRARY})
+  SET(BLOSC_INCLUDE_DIRS ${BLOSC_INCLUDE_DIR})
+ELSE()
+  SET(BLOSC_FOUND FALSE)
+ENDIF()
+
+MARK_AS_ADVANCED(
+  BLOSC_INCLUDE_DIR
+  BLOSC_LIBRARY
+)
diff --git a/build_files/build_environment/patches/cmake/modules/FindCppUnit.cmake b/build_files/build_environment/patches/cmake/modules/FindCppUnit.cmake
new file mode 100644
index 00000000000..3dd480356af
--- /dev/null
+++ b/build_files/build_environment/patches/cmake/modules/FindCppUnit.cmake
@@ -0,0 +1,73 @@
+# - Find CPPUNIT library
+# Find the native CPPUNIT includes and library
+# This module defines
+#  CPPUNIT_INCLUDE_DIRS, where to find cppunit.h, Set when
+#                    CPPUNIT is found.
+#  CPPUNIT_LIBRARIES, libraries to link against to use CPPUNIT.
+#  CPPUNIT_ROOT_DIR, The base directory to search for CPPUNIT.
+#                This can also be an environment variable.
+#  CPPUNIT_FOUND, If false, do not try to use CPPUNIT.
+#
+# also defined, but not for general use are
+#  CPPUNIT_LIBRARY, where to find the CPPUNIT library.
+
+#=============================================================================
+# Copyright 2016 Blender Foundation.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+
+# If CPPUNIT_ROOT_DIR was defined in the environment, use it.
+IF(NOT CPPUNIT_ROOT_DIR AND NOT $ENV{CPPUNIT_ROOT_DIR} STREQUAL "")
+  SET(CPPUNIT_ROOT_DIR $ENV{CPPUNIT_ROOT_DIR})
+ENDIF()
+
+SET(_cppunit_SEARCH_DIRS
+  ${CPPUNIT_ROOT_DIR}
+  /usr/local
+  /sw # Fink
+  /opt/local # DarwinPorts
+  /opt/csw # Blastwave
+  /opt/lib/cppunit
+)
+
+FIND_PATH(CPPUNIT_INCLUDE_DIR
+  NAMES
+    cppunit/Test.h
+  HINTS
+    ${_cppunit_SEARCH_DIRS}
+  PATH_SUFFIXES
+    include
+)
+
+FIND_LIBRARY(CPPUNIT_LIBRARY
+  NAMES
+    cppunit
+  HINTS
+    ${_cppunit_SEARCH_DIRS}
+  PATH_SUFFIXES
+    lib64 lib
+)
+
+# handle the QUIETLY and REQUIRED arguments and set CPPUNIT_FOUND to TRUE if
+# all listed variables are TRUE
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(CPPUNIT DEFAULT_MSG
+    CPPUNIT_LIBRARY CPPUNIT_INCLUDE_DIR)
+
+IF(CPPUNIT_FOUND)
+  SET(CPPUNIT_LIBRARIES ${CPPUNIT_LIBRARY})
+  SET(CPPUNIT_INCLUDE_DIRS ${CPPUNIT_INCLUDE_DIR})
+ELSE()
+  SET(CPPUNIT_FOUND FALSE)
+ENDIF()
+
+MARK_AS_ADVANCED(
+  CPPUNIT_INCLUDE_DIR
+  CPPUNIT_LIBRARY
+)
diff --git a/build_files/build_environment/patches/cmake/modules/FindIlmBase.cmake b/build_files/build_environment/patches/cmake/modules/FindIlmBase.cmake
new file mode 100644
index 00000000000..f1a45228128
--- /dev/null
+++ b/build_files/build_environment/patches/cmake/modules/FindIlmBase.cmake
@@ -0,0 +1,260 @@
+# Module to find IlmBase
+#
+# This module will first look into the directories defined by the variables:
+#   - ILMBASE_HOME, ILMBASE_VERSION, ILMBASE_LIB_AREA
+#
+# It also supports non-standard names for the library components.
+#
+# To use a custom IlmBase:
+#   - Set the variable ILMBASE_CUSTOM to True
+#   - Set the variable ILMBASE_CUSTOM_LIBRARIES to a list of the libraries to
+#     use, e.g. "SpiImath SpiHalf SpiIlmThread SpiIex"
+#   - Optionally set the variable ILMBASE_CUSTOM_INCLUDE_DIR to any
+#     particularly weird place that the OpenEXR/*.h files may be found
+#   - Optionally set the variable ILMBASE_CUSTOM_LIB_DIR to any
+#     particularly weird place that the libraries files may be found
+#
+# This module defines the following variables:
+#
+# ILMBASE_INCLUDE_DIR - where to find half.h, IlmBaseConfig.h, etc.
+# ILMBASE_LIBRARIES   - list of libraries to link against when using IlmBase.
+# ILMBASE_FOUND       - True if IlmBase was found.
+
+# Other standarnd issue macros
+include (FindPackageHandleStandardArgs)
+include (FindPackageMessage)
+include (SelectLibraryConfigurations)
+
+
+if( ILMBASE_USE_STATIC_LIBS )
+  set( _ilmbase_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
+  if(WIN32)
+    set(CMAKE_FIND_LIBRARY_SUFFIXES .lib .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
+  else()
+    set(CMAKE_FIND_LIBRARY_SUFFIXES .a )
+  endif()
+endif()
+
+# Macro to assemble a helper state variable
+macro (SET_STATE_VAR varname)
+  set (tmp_ilmbaselibs ${ILMBASE_CUSTOM_LIBRARIES})
+  separate_arguments (tmp_ilmbaselibs)
+  set (tmp_lst
+    ${ILMBASE_CUSTOM} | ${tmp_ilmbaselibs} |
+    ${ILMBASE_HOME} | ${ILMBASE_VERSION} | ${ILMBASE_LIB_AREA}
+  )
+  set (${varname} "${tmp_lst}")
+  unset (tmp_ilmbaselibs)
+  unset (tmp_lst)
+endmacro ()
+
+# To enforce that find_* functions do not use inadvertently existing versions
+if (ILMBASE_CUSTOM)
+  set (ILMBASE_FIND_OPTIONS "NO_DEFAULT_PATH")
+endif ()
+
+# Macro to search for an include directory
+macro (PREFIX_FIND_INCLUDE_DIR prefix includefile libpath_var)
+  string (TOUPPER ${prefix}_INCLUDE_DIR tmp_varname)
+  find_path(${tmp_varname} ${includefile}
+    HINTS ${${libpath_var}}
+    PATH_SUFFIXES include
+    ${ILMBASE_FIND_OPTIONS}
+  )
+  if (${tmp_varname})
+    mark_as_advanced (${tmp_varname})
+  endif ()
+  unset (tmp_varname)
+endmacro ()
+
+
+# Macro to search for the given library and adds the cached
+# variable names to the specified list
+macro (PREFIX_FIND_LIB prefix libname libpath_var liblist_var cachelist_var)
+  string (TOUPPER ${prefix}_${libname} tmp_prefix)
+  # Handle new library names for OpenEXR 2.1 build via cmake
+  string(REPLACE "." "_" _ILMBASE_VERSION ${ILMBASE_VERSION})
+  string(SUBSTRING ${_ILMBASE_VERSION} 0 3 _ILMBASE_VERSION )
+  
+  find_library(${tmp_prefix}_LIBRARY_RELEASE
+    NAMES ${libname} ${libname}-${_ILMBASE_VERSION}
+    HINTS ${${libpath_var}}
+    PATH_SUFFIXES lib
+    ${ILMBASE_FIND_OPTIONS}
+  )
+  find_library(${tmp_prefix}_LIBRARY_DEBUG
+    NAMES ${libname}d ${libname}_d ${libname}debug ${libname}_debug
+    HINTS ${${libpath_var}}
+    PATH_SUFFIXES lib
+    ${ILMBASE_FIND_OPTIONS}
+  )
+  # Properly define ${tmp_prefix}_LIBRARY (cached) and ${tmp_prefix}_LIBRARIES
+  select_library_configurations (${tmp_prefix})
+  list (APPEND ${liblist_var} ${tmp_prefix}_LIBRARIES)
+
+  # Add to the list of variables which should be reset
+  list (APPEND ${cachelist_var}
+    ${tmp_prefix}_LIBRARY
+    ${tmp_prefix}_LIBRARY_RELEASE
+    ${tmp_prefix}_LIBRARY_DEBUG)
+  mark_as_advanced (
+    ${tmp_prefix}_LIBRARY
+    ${tmp_prefix}_LIBRARY_RELEASE
+    ${tmp_prefix}_LIBRARY_DEBUG)
+  unset (tmp_prefix)
+endmacro ()
+
+
+# Encode the current state of the external variables into a string
+SET_STATE_VAR (ILMBASE_CURRENT_STATE)
+
+# If the state has changed, clear the cached variables
+if (ILMBASE_CACHED_STATE AND
+    NOT ILMBASE_CACHED_STATE STREQUAL ILMBASE_CURRENT_STATE)
+
+  foreach (libvar ${ILMBASE_CACHED_VARS})
+    unset (${libvar} CACHE)
+  endforeach ()
+endif ()
+
+
+# Generic search paths
+set (IlmBase_generic_include_paths
+  ${ILMBASE_CUSTOM_INCLUDE_DIR}
+  /usr/include
+  /usr/include/${CMAKE_LIBRARY_ARCHITECTURE}
+  /usr/local/include
+  /sw/include
+  /opt/local/include)
+set (IlmBase_generic_library_paths
+  ${ILMBASE_CUSTOM_LIB_DIR}
+  /usr/lib
+  /usr/lib/${CMAKE_LIBRARY_ARCHITECTURE}
+  /usr/local/lib
+  /usr/local/lib/${CMAKE_LIBRARY_ARCHITECTURE}
+  /sw/lib
+  /opt/local/lib)
+
+# Search paths for the IlmBase files
+if (ILMBASE_HOME)
+  if (ILMBASE_VERSION)
+    set (IlmBase_include_paths
+      ${ILMBASE_HOME}/ilmbase-${ILMBASE_VERSION}/include
+      ${ILMBASE_HOME}/include/ilmbase-${ILMBASE_VERSION})
+    set (IlmBase_library_paths
+      ${ILMBASE_HOME}/ilmbase-${ILMBASE_VERSION}/lib
+      ${ILMBASE_HOME}/lib/ilmbase-${ILMBASE_VERSION})
+  endif()
+  list (APPEND IlmBase_include_paths ${ILMBASE_HOME}/include)
+  set (IlmBase_library_paths
+    ${ILMBASE_HOME}/lib
+    ${ILMBASE_HOME}/lib64
+    ${ILMBASE_LIB_AREA}
+    ${IlmBase_library_paths})
+endif ()
+list (APPEND IlmBase_include_paths ${IlmBase_generic_include_paths})
+list (APPEND IlmBase_library_paths ${IlmBase_generic_library_paths})
+
+# Locate the header files
+PREFIX_FIND_INCLUDE_DIR (IlmBase
+  OpenEXR/IlmBaseConfig.h IlmBase_include_paths)
+
+if (ILMBASE_INCLUDE_DIR)
+  # Get the version from config file, if not already set.
+  if (NOT ILMBASE_VERSION)
+    FILE(STRINGS "${ILMBASE_INCLUDE_DIR}/OpenEXR/IlmBaseConfig.h" ILMBASE_BUILD_SPECIFICATION
+         REGEX "^[ \t]*#define[ \t]+ILMBASE_VERSION_STRING[ \t]+\"[.0-9]+\".*$")
+
+    if(ILMBASE_BUILD_SPECIFICATION)
+      if (NOT IlmBase_FIND_QUIETLY)
+        message(STATUS "${ILMBASE_BUILD_SPECIFICATION}")
+      endif ()
+      string(REGEX REPLACE ".*#define[ \t]+ILMBASE_VERSION_STRING[ \t]+\"([.0-9]+)\".*"
+             "\\1" XYZ ${ILMBASE_BUILD_SPECIFICATION})
+      set("ILMBASE_VERSION" ${XYZ} CACHE STRING "Version of ILMBase lib")
+    else()
+      # Old versions (before 2.0?) do not have any version string, just assuming 2.0 should be fine though. 
+      message(WARNING "Could not determine ILMBase library version, assuming 2.0.")
+      set("ILMBASE_VERSION" "2.0" CACHE STRING "Version of ILMBase lib")
+    endif()
+  endif()
+endif ()
+
+
+if (ILMBASE_CUSTOM)
+  if (NOT ILMBASE_CUSTOM_LIBRARIES)
+    message (FATAL_ERROR "Custom IlmBase libraries requested but ILMBASE_CUSTOM_LIBRARIES is not set.")
+  endif()
+  set (IlmBase_Libraries ${ILMBASE_CUSTOM_LIBRARIES})
+  separate_arguments(IlmBase_Libraries)
+else ()
+#elseif (${ILMBASE_VERSION} VERSION_LESS "2.1")
+  set (IlmBase_Libraries Half Iex Imath IlmThread)
+#else ()
+#  string(REGEX REPLACE "([0-9]+)[.]([0-9]+).*" "\\1_\\2" _ilmbase_libs_ver ${ILMBASE_VERSION})
+#  set (IlmBase_Libraries Half Iex-${_ilmbase_libs_ver} Imath-${_ilmbase_libs_ver} IlmThread-${_ilmbase_libs_ver})
+endif ()
+
+
+# Locate the IlmBase libraries
+set (IlmBase_libvars "")
+set (IlmBase_cachevars "")
+foreach (ilmbase_lib ${IlmBase_Libraries})
+  PREFIX_FIND_LIB (IlmBase ${ilmbase_lib}
+    IlmBase_library_paths IlmBase_libvars IlmBase_cachevars)
+endforeach ()
+# Create the list of variables that might need to be cleared
+set (ILMBASE_CACHED_VARS
+  ILMBASE_INCLUDE_DIR ${IlmBase_cachevars}
+  CACHE INTERNAL "Variables set by FindIlmBase.cmake" FORCE)
+
+# Store the current state so that variables might be cleared if required
+set (ILMBASE_CACHED_STATE ${ILMBASE_CURRENT_STATE}
+  CACHE INTERNAL "State last seen by FindIlmBase.cmake" FORCE)
+
+# Link with pthreads if required
+if (NOT WIN32 AND EXISTS ${ILMBASE_INCLUDE_DIR}/OpenEXR/IlmBaseConfig.h)
+  file (STRINGS ${ILMBASE_INCLUDE_DIR}/OpenEXR/IlmBaseConfig.h
+    ILMBASE_HAVE_PTHREAD
+    REGEX "^[ \\t]*#define[ \\t]+HAVE_PTHREAD[ \\t]1[ \\t]*\$"
+  )
+  if (ILMBASE_HAVE_PTHREAD)
+    find_package (Threads)
+    if (CMAKE_USE_PTHREADS_INIT)
+      set (ILMBASE_PTHREADS ${CMAKE_THREAD_LIBS_INIT})
+    endif ()
+  endif ()
+endif ()
+
+# Use the standard function to handle ILMBASE_FOUND
+FIND_PACKAGE_HANDLE_STANDARD_ARGS (IlmBase DEFAULT_MSG
+  ILMBASE_INCLUDE_DIR ${IlmBase_libvars})
+
+if (ILMBASE_FOUND)
+  set (ILMBASE_LIBRARIES "")
+  foreach (tmplib ${IlmBase_libvars})
+    list (APPEND ILMBASE_LIBRARIES ${${tmplib}})
+  endforeach ()
+  list (APPEND ILMBASE_LIBRARIES ${ILMBASE_PTHREADS})
+  if (NOT IlmBase_FIND_QUIETLY)
+    FIND_PACKAGE_MESSAGE (ILMBASE
+      "Found IlmBase: ${ILMBASE_LIBRARIES}"
+      "[${ILMBASE_INCLUDE_DIR}][${ILMBASE_LIBRARIES}][${ILMBASE_CURRENT_STATE}]"
+      )
+  endif ()
+endif ()
+
+# Restore the original find library ordering
+if( ILMBASE_USE_STATIC_LIBS )
+  set(CMAKE_FIND_LIBRARY_SUFFIXES ${_ilmbase_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
+endif()
+
+# Unset the helper variables to avoid pollution
+unset (ILMBASE_CURRENT_STATE)
+unset (IlmBase_include_paths)
+unset (IlmBase_library_paths)
+unset (IlmBase_generic_include_paths)
+unset (IlmBase_generic_library_paths)
+unset (IlmBase_libvars)
+unset (IlmBase_cachevars)
+unset (ILMBASE_PTHREADS)
diff --git a/build_files/build_environment/patches/cmake/modules/FindLogC4Plus.cmake b/build_files/build_environment/patches/cmake/modules/FindLogC4Plus.cmake
new file mode 100644
index 00000000000..2002419cc75
--- /dev/null
+++ b/build_files/build_environment/patches/cmake/modules/FindLogC4Plus.cmake
@@ -0,0 +1,73 @@
+# - Find LOGC4PLUS library
+# Find the native LOGC4PLUS includes and library
+# This module defines
+#  LOGC4PLUS_INCLUDE_DIRS, where to find logc4plus.h, Set when
+#                    LOGC4PLUS is found.
+#  LOGC4PLUS_LIBRARIES, libraries to link against to use LOGC4PLUS.
+#  LOGC4PLUS_ROOT_DIR, The base directory to search for LOGC4PLUS.
+#                This can also be an environment variable.
+#  LOGC4PLUS_FOUND, If false, do not try to use LOGC4PLUS.
+#
+# also defined, but not for general use are
+#  LOGC4PLUS_LIBRARY, where to find the LOGC4PLUS library.
+
+#=============================================================================
+# Copyright 2016 Blender Foundation.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+
+# If LOGC4PLUS_ROOT_DIR was defined in the environment, use it.
+IF(NOT LOGC4PLUS_ROOT_DIR AND NOT $ENV{LOGC4PLUS_ROOT_DIR} STREQUAL "")
+  SET(LOGC4PLUS_ROOT_DIR $ENV{LOGC4PLUS_ROOT_DIR})
+ENDIF()
+
+SET(_logc4plus_SEARCH_DIRS
+  ${LOGC4PLUS_ROOT_DIR}
+  /usr/local
+  /sw # Fink
+  /opt/local # DarwinPorts
+  /opt/csw # Blastwave
+  /opt/lib/logc4plus
+)
+
+FIND_PATH(LOGC4PLUS_INCLUDE_DIR
+  NAMES
+    logc4plus.h
+  HINTS
+    ${_logc4plus_SEARCH_DIRS}
+  PATH_SUFFIXES
+    include
+)
+
+FIND_LIBRARY(LOGC4PLUS_LIBRARY
+  NAMES
+    logc4plus
+  HINTS
+    ${_logc4plus_SEARCH_DIRS}
+  PATH_SUFFIXES
+    lib64 lib
+  )
+
+# handle the QUIETLY and REQUIRED arguments and set LOGC4PLUS_FOUND to TRUE if
+# all listed variables are TRUE
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(LOGC4PLUS DEFAULT_MSG
+    LOGC4PLUS_LIBRARY LOGC4PLUS_INCLUDE_DIR)
+
+IF(LOGC4PLUS_FOUND)
+  SET(LOGC4PLUS_LIBRARIES ${LOGC4PLUS_LIBRARY})
+  SET(LOGC4PLUS_INCLUDE_DIRS ${LOGC4PLUS_INCLUDE_DIR})
+ELSE()
+  SET(LOGC4PLUS_LOGC4PLUS_FOUND FALSE)
+ENDIF()
+
+MARK_AS_ADVANCED(
+  LOGC4PLUS_INCLUDE_DIR
+  LOGC4PLUS_LIBRARY
+)
diff --git a/build_files/build_environment/patches/cmake/modules/FindOpenEXR.cmake b/build_files/build_environment/patches/cmake/modules/FindOpenEXR.cmake
new file mode 100644
index 00000000000..08d872445d7
--- /dev/null
+++ b/build_files/build_environment/patches/cmake/modules/FindOpenEXR.cmake
@@ -0,0 +1,244 @@
+# Module to find OpenEXR.
+#
+# This module will first look into the directories defined by the variables:
+#   - OPENEXR_HOME, OPENEXR_VERSION, OPENEXR_LIB_AREA
+#
+# It also supports non-standard names for the library components.
+#
+# To use a custom OpenEXR
+#   - Set the variable OPENEXR_CUSTOM to True
+#   - Set the variable OPENEXR_CUSTOM_LIBRARY to the name of the library to
+#     use, e.g. "SpiIlmImf"
+#   - Optionally set the variable OPENEXR_CUSTOM_INCLUDE_DIR to any
+#     particularly weird place that the OpenEXR/*.h files may be found
+#   - Optionally set the variable OPENEXR_CUSTOM_LIB_DIR to any
+#     particularly weird place that the libraries files may be found
+#
+# This module defines the following variables:
+#
+# OPENEXR_INCLUDE_DIR - where to find ImfRgbaFile.h, OpenEXRConfig, etc.
+# OPENEXR_LIBRARIES   - list of libraries to link against when using OpenEXR.
+#                       This list does NOT include the IlmBase libraries.
+#                       These are defined by the FindIlmBase module.
+# OPENEXR_FOUND       - True if OpenEXR was found.
+
+# Other standarnd issue macros
+include (SelectLibraryConfigurations)
+include (FindPackageHandleStandardArgs)
+include (FindPackageMessage)
+
+if( OPENEXR_USE_STATIC_LIBS )
+  set( _openexr_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
+  if(WIN32)
+    set(CMAKE_FIND_LIBRARY_SUFFIXES .lib .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
+  else()
+    set(CMAKE_FIND_LIBRARY_SUFFIXES .a )
+  endif()
+endif()
+
+# Macro to assemble a helper state variable
+macro (SET_STATE_VAR varname)
+  set (tmp_lst
+    ${OPENEXR_CUSTOM} | ${OPENEXR_CUSTOM_LIBRARY} |
+    ${OPENEXR_HOME} | ${OPENEXR_VERSION} | ${OPENEXR_LIB_AREA}
+  )
+  set (${varname} "${tmp_lst}")
+  unset (tmp_lst)
+endmacro ()
+
+# To enforce that find_* functions do not use inadvertently existing versions
+if (OPENEXR_CUSTOM)
+  set (OPENEXR_FIND_OPTIONS "NO_DEFAULT_PATH")
+endif ()
+
+# Macro to search for an include directory
+macro (PREFIX_FIND_INCLUDE_DIR prefix includefile libpath_var)
+  string (TOUPPER ${prefix}_INCLUDE_DIR tmp_varname)
+  find_path(${tmp_varname} ${includefile}
+    HINTS ${${libpath_var}}
+    PATH_SUFFIXES include
+    ${OPENEXR_FIND_OPTIONS}
+  )
+  if (${tmp_varname})
+    mark_as_advanced (${tmp_varname})
+  endif ()
+  unset (tmp_varname)
+endmacro ()
+
+
+# Macro to search for the given library and adds the cached
+# variable names to the specified list
+macro (PREFIX_FIND_LIB prefix libname libpath_var liblist_var cachelist_var)
+  string (TOUPPER ${prefix}_${libname} tmp_prefix)
+  # Handle new library names for OpenEXR 2.1 build via cmake
+  string(REPLACE "." "_" _ILMBASE_VERSION ${ILMBASE_VERSION})
+  string(SUBSTRING ${_ILMBASE_VERSION} 0 3 _ILMBASE_VERSION )
+  find_library(${tmp_prefix}_LIBRARY_RELEASE
+    NAMES ${libname} ${libname}-${_ILMBASE_VERSION}
+    HINTS ${${libpath_var}}
+    PATH_SUFFIXES lib
+    ${OPENEXR_FIND_OPTIONS}
+  )
+  find_library(${tmp_prefix}_LIBRARY_DEBUG
+    NAMES ${libname}d ${libname}_d ${libname}debug ${libname}_debug
+    HINTS ${${libpath_var}}
+    PATH_SUFFIXES lib
+    ${OPENEXR_FIND_OPTIONS}
+  )
+  # Properly define ${tmp_prefix}_LIBRARY (cached) and ${tmp_prefix}_LIBRARIES
+  select_library_configurations (${tmp_prefix})
+  list (APPEND ${liblist_var} ${tmp_prefix}_LIBRARIES)
+
+  # Add to the list of variables which should be reset
+  list (APPEND ${cachelist_var}
+    ${tmp_prefix}_LIBRARY
+    ${tmp_prefix}_LIBRARY_RELEASE
+    ${tmp_prefix}_LIBRARY_DEBUG)
+  mark_as_advanced (
+    ${tmp_prefix}_LIBRARY
+    ${tmp_prefix}_LIBRARY_RELEASE
+    ${tmp_prefix}_LIBRARY_DEBUG)
+  unset (tmp_prefix)
+endmacro ()
+
+
+# Encode the current state of the external variables into a string
+SET_STATE_VAR (OPENEXR_CURRENT_STATE)
+
+# If the state has changed, clear the cached variables
+if (OPENEXR_CACHED_STATE AND
+    NOT OPENEXR_CACHED_STATE STREQUAL OPENEXR_CURRENT_STATE)
+  foreach (libvar ${OPENEXR_CACHED_VARS})
+    unset (${libvar} CACHE)
+  endforeach ()
+endif ()
+
+# Generic search paths
+set (OpenEXR_generic_include_paths
+  ${OPENEXR_CUSTOM_INCLUDE_DIR}
+  /usr/include
+  /usr/include/${CMAKE_LIBRARY_ARCHITECTURE}
+  /usr/local/include
+  /sw/include
+  /opt/local/include)
+set (OpenEXR_generic_library_paths
+  ${OPENEXR_CUSTOM_LIB_DIR}
+  /usr/lib
+  /usr/lib/${CMAKE_LIBRARY_ARCHITECTURE}
+  /usr/local/lib
+  /usr/local/lib/${CMAKE_LIBRARY_ARCHITECTURE}
+  /sw/lib
+  /opt/local/lib)
+
+# Search paths for the OpenEXR files
+if (OPENEXR_HOME)
+  set (OpenEXR_library_paths
+    ${OPENEXR_HOME}/lib
+    ${OPENEXR_HOME}/lib64)
+  if (OPENEXR_VERSION)
+    set (OpenEXR_include_paths
+      ${OPENEXR_HOME}/openexr-${OPENEXR_VERSION}/include
+      ${OPENEXR_HOME}/include/openexr-${OPENEXR_VERSION})
+    list (APPEND OpenEXR_library_paths
+      ${OPENEXR_HOME}/openexr-${OPENEXR_VERSION}/lib
+      ${OPENEXR_HOME}/lib/openexr-${OPENEXR_VERSION})
+  endif()
+  list (APPEND OpenEXR_include_paths ${OPENEXR_HOME}/include)
+  if (OPENEXR_LIB_AREA)
+    list (INSERT OpenEXR_library_paths 2 ${OPENEXR_LIB_AREA})
+  endif ()
+endif ()
+if (ILMBASE_HOME AND OPENEXR_VERSION)
+  list (APPEND OpenEXR_include_paths
+    ${ILMBASE_HOME}/include/openexr-${OPENEXR_VERSION})
+endif()
+list (APPEND OpenEXR_include_paths ${OpenEXR_generic_include_paths})
+list (APPEND OpenEXR_library_paths ${OpenEXR_generic_library_paths})
+
+# Locate the header files
+PREFIX_FIND_INCLUDE_DIR (OpenEXR
+  OpenEXR/ImfArray.h OpenEXR_include_paths)
+
+if (OPENEXR_INCLUDE_DIR)
+  # Get the version from config file, if not already set.
+  if (NOT OPENEXR_VERSION)
+    FILE(STRINGS "${OPENEXR_INCLUDE_DIR}/OpenEXR/OpenEXRConfig.h" OPENEXR_BUILD_SPECIFICATION
+         REGEX "^[ \t]*#define[ \t]+OPENEXR_VERSION_STRING[ \t]+\"[.0-9]+\".*$")
+
+    if(OPENEXR_BUILD_SPECIFICATION)
+      if (NOT OpenEXR_FIND_QUIETLY)
+        message(STATUS "${OPENEXR_BUILD_SPECIFICATION}")
+      endif ()
+      string(REGEX REPLACE ".*#define[ \t]+OPENEXR_VERSION_STRING[ \t]+\"([.0-9]+)\".*"
+             "\\1" XYZ ${OPENEXR_BUILD_SPECIFICATION})
+      set("OPENEXR_VERSION" ${XYZ} CACHE STRING "Version of OpenEXR lib")
+    else()
+      # Old versions (before 2.0?) do not have any version string, just assuming 2.0 should be fine though. 
+      message(WARNING "Could not determine ILMBase library version, assuming 2.0.")
+      set("OPENEXR_VERSION" "2.0" CACHE STRING "Version of OpenEXR lib")
+    endif()
+  endif()
+endif ()
+
+if (OPENEXR_CUSTOM)
+  if (NOT OPENEXR_CUSTOM_LIBRARY)
+    message (FATAL_ERROR "Custom OpenEXR library requested but OPENEXR_CUSTOM_LIBRARY is not set.")
+  endif()
+  set (OpenEXR_Library ${OPENEXR_CUSTOM_LIBRARY})
+else ()
+#elseif (${OPENEXR_VERSION} VERSION_LESS "2.1")
+  set (OpenEXR_Library IlmImf)
+#else ()
+#  string(REGEX REPLACE "([0-9]+)[.]([0-9]+).*" "\\1_\\2" _openexr_libs_ver ${OPENEXR_VERSION})
+#  set (OpenEXR_Library IlmImf-${_openexr_libs_ver})
+endif ()
+
+# Locate the OpenEXR library
+set (OpenEXR_libvars "")
+set (OpenEXR_cachevars "")
+PREFIX_FIND_LIB (OpenEXR ${OpenEXR_Library}
+  OpenEXR_library_paths OpenEXR_libvars OpenEXR_cachevars)
+
+# Create the list of variables that might need to be cleared
+set (OPENEXR_CACHED_VARS
+  OPENEXR_INCLUDE_DIR ${OpenEXR_cachevars}
+  CACHE INTERNAL "Variables set by FindOpenEXR.cmake" FORCE)
+
+# Store the current state so that variables might be cleared if required
+set (OPENEXR_CACHED_STATE ${OPENEXR_CURRENT_STATE}
+  CACHE INTERNAL "State last seen by FindOpenEXR.cmake" FORCE)
+
+# Always link explicitly with zlib
+set (OPENEXR_ZLIB ${ZLIB_LIBRARIES})
+
+# Use the standard function to handle OPENEXR_FOUND
+FIND_PACKAGE_HANDLE_STANDARD_ARGS (OpenEXR DEFAULT_MSG
+  OPENEXR_INCLUDE_DIR ${OpenEXR_libvars})
+
+if (OPENEXR_FOUND)
+  set (OPENEXR_LIBRARIES "")
+  foreach (tmplib ${OpenEXR_libvars})
+    list (APPEND OPENEXR_LIBRARIES ${${tmplib}})
+  endforeach ()
+  list (APPEND OPENEXR_LIBRARIES ${ZLIB_LIBRARIES})
+  if (NOT OpenEXR_FIND_QUIETLY)
+    FIND_PACKAGE_MESSAGE (OPENEXR
+      "Found OpenEXR: ${OPENEXR_LIBRARIES}"
+      "[${OPENEXR_INCLUDE_DIR}][${OPENEXR_LIBRARIES}][${OPENEXR_CURRENT_STATE}]"
+      )
+  endif ()
+endif ()
+
+# Restore the original find library ordering
+if( OPENEXR_USE_STATIC_LIBS )
+  set(CMAKE_FIND_LIBRARY_SUFFIXES ${_openexr_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
+endif()
+
+# Unset the helper variables to avoid pollution
+unset (OPENEXR_CURRENT_STATE)
+unset (OpenEXR_include_paths)
+unset (OpenEXR_library_paths)
+unset (OpenEXR_generic_include_paths)
+unset (OpenEXR_generic_library_paths)
+unset (OpenEXR_libvars)
+unset (OpenEXR_cachevars)
diff --git a/build_files/build_environment/patches/cmake/modules/FindTBB.cmake b/build_files/build_environment/patches/cmake/modules/FindTBB.cmake
new file mode 100644
index 00000000000..8a821f8092e
--- /dev/null
+++ b/build_files/build_environment/patches/cmake/modules/FindTBB.cmake
@@ -0,0 +1,73 @@
+# - Find TBB library
+# Find the native TBB includes and library
+# This module defines
+#  TBB_INCLUDE_DIRS, where to find tbb.h, Set when
+#                    TBB is found.
+#  TBB_LIBRARIES, libraries to link against to use TBB.
+#  TBB_ROOT_DIR, The base directory to search for TBB.
+#                This can also be an environment variable.
+#  TBB_FOUND, If false, do not try to use TBB.
+#
+# also defined, but not for general use are
+#  TBB_LIBRARY, where to find the TBB library.
+
+#=============================================================================
+# Copyright 2016 Blender Foundation.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+
+# If TBB_ROOT_DIR was defined in the environment, use it.
+IF(NOT TBB_ROOT_DIR AND NOT $ENV{TBB_ROOT_DIR} STREQUAL "")
+  SET(TBB_ROOT_DIR $ENV{TBB_ROOT_DIR})
+ENDIF()
+
+SET(_tbb_SEARCH_DIRS
+  ${TBB_ROOT_DIR}
+  /usr/local
+  /sw # Fink
+  /opt/local # DarwinPorts
+  /opt/csw # Blastwave
+  /opt/lib/tbb
+)
+
+FIND_PATH(TBB_INCLUDE_DIR
+  NAMES
+    tbb/tbb.h
+  HINTS
+    ${_tbb_SEARCH_DIRS}
+  PATH_SUFFIXES
+    include
+)
+
+FIND_LIBRARY(TBB_LIBRARY
+  NAMES
+    tbb
+  HINTS
+    ${_tbb_SEARCH_DIRS}
+  PATH_SUFFIXES
+    lib64 lib
+  )
+
+# handle the QUIETLY and REQUIRED arguments and set TBB_FOUND to TRUE if
+# all listed variables are TRUE
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(TBB DEFAULT_MSG
+    TBB_LIBRARY TBB_INCLUDE_DIR)
+
+IF(TBB_FOUND)
+  SET(TBB_LIBRARIES ${TBB_LIBRARY})
+  SET(TBB_INCLUDE_DIRS ${TBB_INCLUDE_DIR})
+ELSE()
+  SET(TBB_TBB_FOUND FALSE)
+ENDIF()
+
+MARK_AS_ADVANCED(
+  TBB_INCLUDE_DIR
+  TBB_LIBRARY
+)
diff --git a/build_files/build_environment/patches/cmake/modules/SelectLibraryConfigurations.cmake b/build_files/build_environment/patches/cmake/modules/SelectLibraryConfigurations.cmake
new file mode 100644
index 00000000000..51b4dda0653
--- /dev/null
+++ b/build_files/build_environment/patches/cmake/modules/SelectLibraryConfigurations.cmake
@@ -0,0 +1,82 @@
+# select_library_configurations( basename )
+#
+# This macro takes a library base name as an argument, and will choose good
+# values for basename_LIBRARY, basename_LIBRARIES, basename_LIBRARY_DEBUG, and
+# basename_LIBRARY_RELEASE depending on what has been found and set.  If only
+# basename_LIBRARY_RELEASE is defined, basename_LIBRARY, basename_LIBRARY_DEBUG,
+# and basename_LIBRARY_RELEASE will be set to the release value.  If only
+# basename_LIBRARY_DEBUG is defined, then basename_LIBRARY,
+# basename_LIBRARY_DEBUG and basename_LIBRARY_RELEASE will take the debug value.  
+#
+# If the generator supports configuration types, then basename_LIBRARY and
+# basename_LIBRARIES will be set with debug and optimized flags specifying the
+# library to be used for the given configuration.  If no build type has been set
+# or the generator in use does not support configuration types, then
+# basename_LIBRARY and basename_LIBRARIES will take only the release values.
+
+#=============================================================================
+# Copyright 2009 Kitware, Inc.
+# Copyright 2009 Will Dicharry <wdicharry@stellarscience.com>
+# Copyright 2005-2009 Kitware, Inc.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+# This macro was adapted from the FindQt4 CMake module and is maintained by Will
+# Dicharry <wdicharry@stellarscience.com>.
+
+# Utility macro to check if one variable exists while another doesn't, and set
+# one that doesn't exist to the one that exists.
+macro( _set_library_name basename GOOD BAD )
+    if( ${basename}_LIBRARY_${GOOD} AND NOT ${basename}_LIBRARY_${BAD} )
+        set( ${basename}_LIBRARY_${BAD} ${${basename}_LIBRARY_${GOOD}} )
+        set( ${basename}_LIBRARY ${${basename}_LIBRARY_${GOOD}} )
+        set( ${basename}_LIBRARIES ${${basename}_LIBRARY_${GOOD}} )
+    endif( ${basename}_LIBRARY_${GOOD} AND NOT ${basename}_LIBRARY_${BAD} )
+endmacro( _set_library_name )
+
+macro( select_library_configurations basename )
+    # if only the release version was found, set the debug to be the release
+    # version.
+    _set_library_name( ${basename} RELEASE DEBUG )
+    # if only the debug version was found, set the release value to be the
+    # debug value.
+    _set_library_name( ${basename} DEBUG RELEASE )
+    if (${basename}_LIBRARY_DEBUG AND ${basename}_LIBRARY_RELEASE )
+        # if the generator supports configuration types or CMAKE_BUILD_TYPE
+        # is set, then set optimized and debug options.
+        if( CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE )
+            set( ${basename}_LIBRARY 
+                optimized ${${basename}_LIBRARY_RELEASE}
+                debug ${${basename}_LIBRARY_DEBUG} )
+            set( ${basename}_LIBRARIES 
+                optimized ${${basename}_LIBRARY_RELEASE}
+                debug ${${basename}_LIBRARY_DEBUG} )
+        else( CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE )
+            # If there are no configuration types or build type, just use
+            # the release version
+            set( ${basename}_LIBRARY ${${basename}_LIBRARY_RELEASE} )
+            set( ${basename}_LIBRARIES ${${basename}_LIBRARY_RELEASE} )
+        endif( CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE )
+    endif( ${basename}_LIBRARY_DEBUG AND ${basename}_LIBRARY_RELEASE )
+
+    set( ${basename}_LIBRARY ${${basename}_LIBRARY} CACHE FILEPATH 
+        "The ${basename} library" )
+
+    if( ${basename}_LIBRARY )
+        set( ${basename}_FOUND TRUE )
+    endif( ${basename}_LIBRARY )
+
+    mark_as_advanced( ${basename}_LIBRARY 
+        ${basename}_LIBRARY_RELEASE
+        ${basename}_LIBRARY_DEBUG
+    )
+endmacro( select_library_configurations )
+
diff --git a/build_files/build_environment/patches/cmakelists_glew.txt b/build_files/build_environment/patches/cmakelists_glew.txt
new file mode 100644
index 00000000000..ec36d4bde63
--- /dev/null
+++ b/build_files/build_environment/patches/cmakelists_glew.txt
@@ -0,0 +1,2 @@
+cmake_minimum_required (VERSION 2.4)
+add_subdirectory(build/cmake)
\ No newline at end of file
diff --git a/build_files/build_environment/patches/cmakelists_hidapi.txt b/build_files/build_environment/patches/cmakelists_hidapi.txt
new file mode 100644
index 00000000000..239b9d88b16
--- /dev/null
+++ b/build_files/build_environment/patches/cmakelists_hidapi.txt
@@ -0,0 +1,20 @@
+cmake_minimum_required(VERSION 2.8)
+project(hidapi)
+
+set(SRC_FILES
+	windows/hid.c
+)
+
+set(HEADER_FILES
+	hidapi/hidapi.h
+)
+include_directories(hidapi)
+add_definitions(-DHID_API_STATIC)
+add_library(hidapi STATIC ${SRC_FILES} ${HEADER_FILES})
+
+install(TARGETS hidapi DESTINATION lib)
+
+INSTALL(FILES hidapi/hidapi.h
+        DESTINATION "include"
+        )
+
diff --git a/build_files/build_environment/patches/cmakelists_openvdb.txt b/build_files/build_environment/patches/cmakelists_openvdb.txt
new file mode 100644
index 00000000000..dd3e9c1a887
--- /dev/null
+++ b/build_files/build_environment/patches/cmakelists_openvdb.txt
@@ -0,0 +1,398 @@
+# --------------------------------------------------------------------------------
+
+cmake_minimum_required(VERSION 2.8)
+
+# --------------------------------------------------------------------------------
+
+project(OpenVDB)
+
+# --------------------------------------------------------------------------------
+
+set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules")
+
+# --------------------------------------------------------------------------------
+
+set(CMAKE_BUILD_TYPE_INIT "Release")
+
+# --------------------------------------------------------------------------------
+# Options
+
+option(WITH_BLOSC             "Enable Blosc support for compression" OFF)
+option(WITH_LOGC4PLUS         "Enable logging" OFF)
+option(WITH_OPENVDB_2_ABI     "Enable building the library to be compability with the OpenVDB 2 ABI" OFF)
+option(WITH_PRINTER           "Enable building the OpenVDB print executable" OFF)
+option(WITH_PYTHON            "Enable building the OpenVDB python API" OFF)
+option(WITH_RENDERER          "Enable building the OpenVDB render executable" OFF)
+option(WITH_UNITTEST          "Enable building the unit tests" OFF)
+option(WITH_VIEWER            "Enable building the OpenVDB viewer executable" OFF)
+
+# --------------------------------------------------------------------------------
+# Find packages
+#set(BOOST_LIBRARIES boost_iostreams boost_system boost_thread)
+
+find_package(IlmBase)
+find_package(OpenEXR)
+find_package(TBB)
+find_package(Boost)
+
+if(WITH_BLOSC)
+	find_package(Blosc)
+
+	if(NOT BLOSC_FOUND)
+		set(WITH_BLOSC OFF)
+	endif()
+endif()
+
+# todo
+if(WITH_VIEWER)
+	set(GLFW_INCLUDE_DIRS ${GLFW_INCLUDE_PATH})
+	set(GLFW_LIBRARY_DIRS ${GLFW_LIBRARY_PATH})
+endif()
+
+if(WITH_LOGC4PLUS)
+	find_package(LogC4Plus)
+
+	if(NOT LOGC4PLUS_FOUND)
+		set(WITH_LOGC4PLUS OFF)
+	endif()
+endif()
+
+# todo
+if(WITH_PYTHON)
+	set(PYTHON_INCLUDE_DIRS ${PYTHON_INCLUDE_PATH})
+	set(PYTHON_LIBRARY_DIRS ${PYTHON_LIBRARY_PATH})
+endif()
+
+if(WITH_UNITTEST)
+	find_package(CppUnit)
+
+	if(NOT CPPUNIT_FOUND)
+		set(WITH_UNITTEST OFF)
+	endif()
+endif()
+
+# --------------------------------------------------------------------------------
+
+message (STATUS "BOOST_ROOT ${BOOST_ROOT}")
+message (STATUS "Boost found ${Boost_FOUND} ")
+message (STATUS "Boost version      ${Boost_VERSION}")
+message (STATUS "Boost include dirs ${Boost_INCLUDE_DIRS}")
+message (STATUS "Boost library dirs ${Boost_LIBRARY_DIRS}")
+message (STATUS "Boost libraries    ${Boost_LIBRARIES}") 
+
+message (STATUS "ILMBase found ${ILMBASE_FOUND} ")
+message (STATUS "ILMBase include dir ${ILMBASE_INCLUDE_DIR}")
+message (STATUS "ILMBase libraries    ${ILMBASE_LIBRARIES}") 
+
+message (STATUS "TBB found ${TBB_FOUND} ")
+message (STATUS "TBB include dir ${TBB_INCLUDE_DIR}")
+message (STATUS "TBB libraries    ${TBB_LIBRARIES}") 
+
+if(MSVC)
+    set ( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /bigobj" )
+    set ( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /bigobj" )
+endif()
+
+set(OPENVDB_LIBRARIES ${BLOSC_LIBRARIES} ${BOOST_LIBRARIES} ${OPENEXR_LIBRARIES} ${ILMBASE_LIBRARIES}  ${TBB_LIBRARIES} ${ZLIB_LIBRARY} )
+
+include_directories(. ${CMAKE_CURRENT_SOURCE_DIR}/../ ${Boost_INCLUDE_DIRS} ${ILMBASE_INCLUDE_DIR} ${OPENEXR_INCLUDE_DIR} ${TBB_INCLUDE_DIRS} ${ZLIB_INCLUDE_DIR})
+link_directories(${Boost_LIBRARY_DIRS} ${OPENEXR_LIBRARY_DIRS} ${TBB_INCLUDE_DIRS})
+add_definitions(-DNOMINMAX -D__TBB_NO_IMPLICIT_LINKAGE -DOPENVDB_STATICLIB -DOPENVDB_OPENEXR_STATICLIB)
+
+if(WITH_BLOSC)
+	add_definitions(-DOPENVDB_USE_BLOSC)
+	include_directories(${BLOSC_INCLUDE_DIRS})
+	link_directories(${BLOSC_LIBRARY_DIRS})
+endif()
+
+if(WITH_LOGC4PLUS)
+	add_definitions(-DOPENVDB_USE_LOG4CPLUS)
+	include_directories(${LOG4CPLUS_INCLUDE_DIRS})
+	link_directories(${LOG4CPLUS_LIBRARY_DIRS})
+endif()
+
+if(WITH_OPENVDB_2_ABI)
+	add_definitions(-DOPENVDB_2_ABI_COMPATIBLE)
+endif()
+
+# todo
+if(WITH_OPENVDB_USE_GLFW_3)
+	add_definitions(-DOPENVDB_USE_GLFW_3)
+endif()
+
+if(WITH_UNITTEST)
+	include_directories(${CPPUNIT_INCLUDE_DIRS})
+	link_directories(${CPPUNIT_LIBRARY_DIRS})
+endif()
+
+# --------------------------------------------------------------------------------
+
+set(SRC_FILES
+	openvdb/openvdb.cc
+	openvdb/io/Compression.cc
+	openvdb/io/File.cc
+	openvdb/io/Queue.cc
+	openvdb/io/Stream.cc
+	openvdb/io/TempFile.cc
+	openvdb/io/GridDescriptor.cc
+	openvdb/io/Archive.cc
+	openvdb/metadata/MetaMap.cc
+	openvdb/metadata/Metadata.cc
+	openvdb/math/Maps.cc
+	openvdb/math/Transform.cc
+	openvdb/math/QuantizedUnitVec.cc
+	openvdb/math/Proximity.cc
+	openvdb/Grid.cc
+	openvdb/util/Formats.cc
+	openvdb/util/Util.cc
+)
+
+set(HEADER_FILES
+	openvdb/openvdb.h
+	openvdb/version.h
+	openvdb/PlatformConfig.h
+	openvdb/Metadata.h
+	openvdb/Exceptions.h
+	openvdb/Grid.h
+	openvdb/Types.h
+	openvdb/Platform.h
+	openvdb/tree/ValueAccessor.h
+	openvdb/tree/NodeUnion.h
+	openvdb/tree/Tree.h
+	openvdb/tree/Iterator.h
+	openvdb/tree/LeafNodeBool.h
+	openvdb/tree/TreeIterator.h
+	openvdb/tree/LeafNode.h
+	openvdb/tree/NodeManager.h
+	openvdb/tree/LeafManager.h
+	openvdb/tree/InternalNode.h
+	openvdb/tree/RootNode.h
+	openvdb/tools/PointScatter.h
+	openvdb/tools/VolumeAdvect.h
+	openvdb/tools/LevelSetTracker.h
+	openvdb/tools/Composite.h
+	openvdb/tools/Morphology.h
+	openvdb/tools/ValueTransformer.h
+	openvdb/tools/ChangeBackground.h
+	openvdb/tools/GridTransformer.h
+	openvdb/tools/Prune.h
+	openvdb/tools/LevelSetUtil.h
+	openvdb/tools/VolumeToSpheres.h
+	openvdb/tools/LevelSetAdvect.h
+	openvdb/tools/Statistics.h
+	openvdb/tools/LevelSetMeasure.h
+	openvdb/tools/VectorTransformer.h
+	openvdb/tools/RayIntersector.h
+	openvdb/tools/PointPartitioner.h
+	openvdb/tools/Interpolation.h
+	openvdb/tools/VelocityFields.h
+	openvdb/tools/PointIndexGrid.h
+	openvdb/tools/LevelSetRebuild.h
+	openvdb/tools/Clip.h
+	openvdb/tools/SignedFloodFill.h
+	openvdb/tools/MeshToVolume.h
+	openvdb/tools/Dense.h
+	openvdb/tools/Filter.h
+	openvdb/tools/RayTracer.h
+	openvdb/tools/Diagnostics.h
+	openvdb/tools/VolumeToMesh.h
+	openvdb/tools/PoissonSolver.h
+	openvdb/tools/LevelSetFracture.h
+	openvdb/tools/GridOperators.h
+	openvdb/tools/DenseSparseTools.h
+	openvdb/tools/ParticlesToLevelSet.h
+	openvdb/tools/LevelSetSphere.h
+	openvdb/tools/LevelSetMorph.h
+	openvdb/tools/LevelSetFilter.h
+	openvdb/tools/PointAdvect.h
+	openvdb/io/Queue.h
+	openvdb/io/TempFile.h
+	openvdb/io/Stream.h
+	openvdb/io/GridDescriptor.h
+	openvdb/io/Archive.h
+	openvdb/io/io.h
+	openvdb/io/Compression.h
+	openvdb/io/File.h
+	openvdb/metadata/StringMetadata.h
+	openvdb/metadata/MetaMap.h
+	openvdb/metadata/Metadata.h
+	openvdb/math/DDA.h
+	openvdb/math/Vec2.h
+	openvdb/math/FiniteDifference.h
+	openvdb/math/Stencils.h
+	openvdb/math/BBox.h
+	openvdb/math/Mat3.h
+	openvdb/math/Mat.h
+	openvdb/math/Proximity.h
+	openvdb/math/Ray.h
+	openvdb/math/ConjGradient.h
+	openvdb/math/Quat.h
+	openvdb/math/Vec3.h
+	openvdb/math/Vec4.h
+	openvdb/math/QuantizedUnitVec.h
+	openvdb/math/Coord.h
+	openvdb/math/Operators.h
+	openvdb/math/Stats.h
+	openvdb/math/Math.h
+	openvdb/math/Tuple.h
+	openvdb/math/LegacyFrustum.h
+	openvdb/math/Mat4.h
+	openvdb/math/Maps.h
+	openvdb/math/Transform.h
+	openvdb/util/PagedArray.h
+	openvdb/util/CpuTimer.h
+	openvdb/util/Formats.h
+	openvdb/util/NullInterrupter.h
+	openvdb/util/Util.h
+	openvdb/util/Name.h
+	openvdb/util/MapsUtil.h
+	openvdb/util/NodeMasks.h
+	openvdb/util/logging.h
+)
+
+add_library(openvdb STATIC ${SRC_FILES} ${HEADER_FILES})
+
+# --------------------------------------------------------------------------------
+
+target_link_libraries(openvdb ${OPENVDB_LIBRARIES})
+
+set(OPENVDB_VERSION_MAJOR 3)
+set(OPENVDB_VERSION_MINOR 1)
+set(OPENVDB_VERSION_PATCH 0)
+set(OPENVDB_VERSION_STRING ${OPENVDB_VERSION_MAJOR}.${OPENVDB_VERSION_MINOR}.${OPENVDB_VERSION_PATCH})
+
+set_target_properties(openvdb PROPERTIES VERSION ${OPENVDB_VERSION_STRING} SOVERSION ${OPENVDB_VERSION_MAJOR})
+
+install(TARGETS openvdb DESTINATION lib)
+
+install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} DESTINATION include COMPONENT Development FILES_MATCHING PATTERN "*.h"
+        PATTERN ".git" EXCLUDE PATTERN "build" EXCLUDE PATTERN "cmake" EXCLUDE)
+
+# --------------------------------------------------------------------------------
+
+if(WITH_PRINTER)
+	set(PRINT_SRC
+		openvdb/cmd/openvdb_print/main.cc
+	)
+
+	add_executable(vdb_print ${PRINT_SRC})
+	target_link_libraries(vdb_print openvdb)
+	install(TARGETS vdb_print RUNTIME DESTINATION bin)
+endif()
+
+if(WITH_RENDER)
+	set(RENDER_SRC
+		openvdb/cmd/openvdb_render/main.cc
+	)
+
+	add_executable(vdb_render ${RENDER_SRC})
+	target_link_libraries(vdb_render openvdb)
+	install(TARGETS vdb_render RUNTIME DESTINATION bin)
+endif()
+
+# todo
+if(WITH_VIEWER)
+	set(VIEWER_SRC
+		openvdb/viewer/Camera.cc
+		openvdb/viewer/ClipBox.cc
+		openvdb/viewer/Font.cc
+		openvdb/viewer/RenderModules.cc
+		openvdb/viewer/Viewer.cc
+
+		openvdb/viewer/Camera.h
+		openvdb/viewer/ClipBox.h
+		openvdb/viewer/Font.h
+		openvdb/viewer/RenderModules.h
+		openvdb/viewer/Viewer.h
+		openvdb/cmd/openvdb_viewer/main.cc
+	)
+
+	include_directories(${GLFW_INCLUDE_DIRS})
+	link_directories(${GLFW_LIBRARY_DIRS})
+
+	add_executable(vdb_viewer ${VIEWER_SRC})
+	target_link_libraries(vdb_viewer openvdb)
+	install(TARGETS vdb_viewer RUNTIME DESTINATION bin)
+endif()
+
+# todo
+if(WITH_PYTHON)
+#	add_library(pyopenvdb SHARED )
+endif()
+
+set(UNITTEST_SRC
+	openvdb/unittest/main.cc
+	openvdb/unittest/TestBBox.cc
+	openvdb/unittest/TestConjGradient.cc
+	openvdb/unittest/TestCoord.cc
+	openvdb/unittest/TestCpt.cc
+	openvdb/unittest/TestCurl.cc
+	openvdb/unittest/TestDense.cc
+	openvdb/unittest/TestDenseSparseTools.cc
+	openvdb/unittest/TestDiagnostics.cc
+	openvdb/unittest/TestDivergence.cc
+	openvdb/unittest/TestDoubleMetadata.cc
+	openvdb/unittest/TestExceptions.cc
+	openvdb/unittest/TestFile.cc
+	openvdb/unittest/TestFloatMetadata.cc
+	openvdb/unittest/TestGradient.cc
+	openvdb/unittest/TestGrid.cc
+	openvdb/unittest/TestGridBbox.cc
+	openvdb/unittest/TestGridDescriptor.cc
+	openvdb/unittest/TestGridIO.cc
+	openvdb/unittest/TestGridTransformer.cc
+	openvdb/unittest/TestInit.cc
+	openvdb/unittest/TestInt32Metadata.cc
+	openvdb/unittest/TestInt64Metadata.cc
+	openvdb/unittest/TestInternalOrigin.cc
+	openvdb/unittest/TestLaplacian.cc
+	openvdb/unittest/TestLeaf.cc
+	openvdb/unittest/TestLeafBool.cc
+	openvdb/unittest/TestLeafIO.cc
+	openvdb/unittest/TestLeafOrigin.cc
+	openvdb/unittest/TestLevelSetRayIntersector.cc
+	openvdb/unittest/TestLevelSetUtil.cc
+	openvdb/unittest/TestLinearInterp.cc
+	openvdb/unittest/TestMaps.cc
+	openvdb/unittest/TestMat4Metadata.cc
+	openvdb/unittest/TestMath.cc
+	openvdb/unittest/TestMeanCurvature.cc
+	openvdb/unittest/TestMeshToVolume.cc
+	openvdb/unittest/TestMetadata.cc
+	openvdb/unittest/TestMetadataIO.cc
+	openvdb/unittest/TestMetaMap.cc
+	openvdb/unittest/TestName.cc
+	openvdb/unittest/TestNodeIterator.cc
+	openvdb/unittest/TestNodeMask.cc
+	openvdb/unittest/TestParticlesToLevelSet.cc
+	openvdb/unittest/TestPointIndexGrid.cc
+	openvdb/unittest/TestPointPartitioner.cc
+	openvdb/unittest/TestPoissonSolver.cc
+	openvdb/unittest/TestPrePostAPI.cc
+	openvdb/unittest/TestQuadraticInterp.cc
+	openvdb/unittest/TestQuantizedUnitVec.cc
+	openvdb/unittest/TestQuat.cc
+	openvdb/unittest/TestRay.cc
+	openvdb/unittest/TestStats.cc
+	openvdb/unittest/TestStream.cc
+	openvdb/unittest/TestStringMetadata.cc
+	openvdb/unittest/TestTools.cc
+	openvdb/unittest/TestTransform.cc
+	openvdb/unittest/TestTree.cc
+	openvdb/unittest/TestTreeCombine.cc
+	openvdb/unittest/TestTreeGetSetValues.cc
+	openvdb/unittest/TestTreeIterators.cc
+	openvdb/unittest/TestTreeVisitor.cc
+	openvdb/unittest/TestUtil.cc
+	openvdb/unittest/TestValueAccessor.cc
+	openvdb/unittest/TestVec2Metadata.cc
+	openvdb/unittest/TestVec3Metadata.cc
+	openvdb/unittest/TestVolumeRayIntersector.cc
+	openvdb/unittest/TestVolumeToMesh.cc
+)
+
+# todo
+if(WITH_UNITTEST)
+	add_executable(test ${UNITTEST_SRC} ${HEADER_FILES})
+	target_link_libraries(test openvdb ${CPPUNIT_LIBRARIES})
+endif()
diff --git a/build_files/build_environment/patches/cmakelists_tbb.txt b/build_files/build_environment/patches/cmakelists_tbb.txt
new file mode 100644
index 00000000000..1be9ca25f6a
--- /dev/null
+++ b/build_files/build_environment/patches/cmakelists_tbb.txt
@@ -0,0 +1,196 @@
+cmake_minimum_required (VERSION 2.8)
+project(tbb CXX)
+
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  message(STATUS "Setting build type to 'Release' as none was specified.")
+  set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build." FORCE)
+  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release"
+    "MinSizeRel" "RelWithDebInfo")
+endif()
+
+include_directories(include src src/rml/include )
+
+option(TBB_BUILD_SHARED          "Build TBB shared library" ON)
+option(TBB_BUILD_STATIC          "Build TBB static library" ON)
+option(TBB_BUILD_TBBMALLOC       "Build TBB malloc library" ON)
+option(TBB_BUILD_TBBMALLOC_PROXY "Build TBB malloc proxy library" ON)
+
+if(APPLE)
+  set(CMAKE_MACOSX_RPATH ON)
+endif()
+
+file(GLOB tbb_src "${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/*.cpp" "${CMAKE_CURRENT_SOURCE_DIR}/src/old/*.cpp")
+list(APPEND tbb_src ${CMAKE_CURRENT_SOURCE_DIR}/src/rml/client/rml_tbb.cpp)
+file(GLOB to_remove "${CMAKE_CURRENT_SOURCE_DIR}/src/old/test*.cpp")
+list(REMOVE_ITEM tbb_src ${to_remove})
+
+set(tbbmalloc_static_src
+  src/tbbmalloc/backend.cpp
+  src/tbbmalloc/large_objects.cpp
+  src/tbbmalloc/backref.cpp
+  src/tbbmalloc/tbbmalloc.cpp
+  src/tbbmalloc/frontend.cpp
+  src/tbb/itt_notify.cpp)
+
+set(tbbmalloc_src ${tbbmalloc_static_src})
+
+set(tbbmalloc_proxy_src
+  src/tbbmalloc/proxy.cpp
+  src/tbbmalloc/tbb_function_replacement.cpp)
+
+if (NOT APPLE)
+  add_definitions(-DDO_ITT_NOTIFY)
+else()
+  # Disable annoying "has no symbols" warnings
+ set(CMAKE_C_ARCHIVE_CREATE   "<CMAKE_AR> Scr <TARGET> <LINK_FLAGS> <OBJECTS>")
+ set(CMAKE_CXX_ARCHIVE_CREATE "<CMAKE_AR> Scr <TARGET> <LINK_FLAGS> <OBJECTS>")
+ set(CMAKE_C_ARCHIVE_FINISH   "<CMAKE_RANLIB> -no_warning_for_no_symbols -c <TARGET>")
+ set(CMAKE_CXX_ARCHIVE_FINISH "<CMAKE_RANLIB> -no_warning_for_no_symbols -c <TARGET>")
+endif()
+
+if (UNIX)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -DUSE_PTHREAD")
+  if(NOT CMAKE_CXX_FLAGS MATCHES "-mno-rtm")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mrtm")
+  endif()
+  if (APPLE)
+    set(ARCH_PREFIX "mac")
+  else()
+    set(ARCH_PREFIX "lin")
+  endif()
+  if (CMAKE_SIZEOF_VOID_P EQUAL 8)
+    set(ARCH_PREFIX "${ARCH_PREFIX}64")
+  else()
+    set(ARCH_PREFIX "${ARCH_PREFIX}32")
+  endif()
+  set(ENABLE_RTTI "-frtti -fexceptions ")
+  set(DISABLE_RTTI "-fno-rtti -fno-exceptions ")
+elseif(WIN32)
+  cmake_minimum_required (VERSION 3.1)
+  enable_language(ASM_MASM)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /GS- /Zc:wchar_t /Zc:forScope /DUSE_WINTHREAD")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /D_CRT_SECURE_NO_DEPRECATE /D_WIN32_WINNT=0x0600 /volatile:iso")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4267 /wd4800 /wd4146 /wd4244 /wd4018")
+
+  if (CMAKE_SIZEOF_VOID_P EQUAL 8)
+    list(APPEND tbb_src src/tbb/intel64-masm/atomic_support.asm
+      src/tbb/intel64-masm/itsx.asm src/tbb/intel64-masm/intel64_misc.asm)
+    list(APPEND tbbmalloc_src src/tbb/intel64-masm/atomic_support.asm)
+    set(CMAKE_ASM_MASM_FLAGS "/DEM64T=1")
+    set(ARCH_PREFIX "win64")
+  else()
+    list(APPEND tbb_src src/tbb/ia32-masm/atomic_support.asm
+      src/tbb/ia32-masm/itsx.asm src/tbb/ia32-masm/lock_byte.asm)
+    list(APPEND tbbmalloc_src src/tbb/ia32-masm/atomic_support.asm)
+    set(ARCH_PREFIX "win32")
+  endif()
+  set(ENABLE_RTTI "/EHsc /GR ")
+  set(DISABLE_RTTI "/EHs- /GR- ")
+endif()
+
+# Linker export definitions
+if (WIN32)
+  add_custom_command(OUTPUT tbb.def
+    COMMAND ${CMAKE_CXX_COMPILER} /TC /EP ${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/${ARCH_PREFIX}-tbb-export.def  -I ${CMAKE_CURRENT_SOURCE_DIR}/include > tbb.def
+    MAIN_DEPENDENCY ${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/${ARCH_PREFIX}-tbb-export.def
+    COMMENT "Preprocessing tbb.def"
+  )
+
+  add_custom_command(OUTPUT tbbmalloc.def
+    COMMAND ${CMAKE_CXX_COMPILER} /TC /EP ${CMAKE_CURRENT_SOURCE_DIR}/src/tbbmalloc/${ARCH_PREFIX}-tbbmalloc-export.def  -I ${CMAKE_CURRENT_SOURCE_DIR}/include >   tbbmalloc.def
+    MAIN_DEPENDENCY ${CMAKE_CURRENT_SOURCE_DIR}/src/tbbmalloc/${ARCH_PREFIX}-tbbmalloc-export.def
+    COMMENT "Preprocessing tbbmalloc.def"
+  )
+else()
+  add_custom_command(OUTPUT tbb.def
+    COMMAND ${CMAKE_CXX_COMPILER} -xc++ -E ${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/${ARCH_PREFIX}-tbb-export.def  -I ${CMAKE_CURRENT_SOURCE_DIR}/include -o tbb.def
+    MAIN_DEPENDENCY ${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/${ARCH_PREFIX}-tbb-export.def
+    COMMENT "Preprocessing tbb.def"
+  )
+
+  add_custom_command(OUTPUT tbbmalloc.def
+    COMMAND ${CMAKE_CXX_COMPILER} -xc++ -E ${CMAKE_CURRENT_SOURCE_DIR}/src/tbbmalloc/${ARCH_PREFIX}-tbbmalloc-export.def  -I ${CMAKE_CURRENT_SOURCE_DIR}/include -o   tbbmalloc.def
+    MAIN_DEPENDENCY ${CMAKE_CURRENT_SOURCE_DIR}/src/tbbmalloc/${ARCH_PREFIX}-tbbmalloc-export.def
+    COMMENT "Preprocessing tbbmalloc.def"
+  )
+endif()
+
+add_custom_target(tbb_def_files DEPENDS tbb.def tbbmalloc.def)
+
+# TBB library
+if (TBB_BUILD_STATIC)
+  add_library(tbb_static STATIC ${tbb_src})
+  set_property(TARGET tbb_static APPEND PROPERTY COMPILE_DEFINITIONS "__TBB_BUILD=1")
+  set_property(TARGET tbb_static APPEND PROPERTY COMPILE_DEFINITIONS "__TBB_SOURCE_DIRECTLY_INCLUDED=1")
+  set_property(TARGET tbb_static APPEND_STRING PROPERTY COMPILE_FLAGS ${ENABLE_RTTI})
+  install(TARGETS tbb_static ARCHIVE DESTINATION lib)
+endif()
+
+if (TBB_BUILD_SHARED)
+  add_library(tbb SHARED ${tbb_src})
+  set_property(TARGET tbb APPEND PROPERTY COMPILE_DEFINITIONS "__TBB_BUILD=1")
+  set_property(TARGET tbb APPEND_STRING PROPERTY COMPILE_FLAGS ${ENABLE_RTTI})
+  add_dependencies(tbb tbb_def_files)
+  if (APPLE)
+    set_property(TARGET tbb APPEND PROPERTY LINK_FLAGS "-Wl,-exported_symbols_list,${CMAKE_CURRENT_BINARY_DIR}/tbb.def")
+  elseif(UNIX)
+    set_property(TARGET tbb APPEND PROPERTY LINK_FLAGS "-Wl,-version-script,${CMAKE_CURRENT_BINARY_DIR}/tbb.def")
+  elseif(WIN32)
+    set_property(TARGET tbb APPEND PROPERTY LINK_FLAGS "/DEF:${CMAKE_CURRENT_BINARY_DIR}/tbb.def")
+  endif()
+  install(TARGETS tbb DESTINATION lib)
+endif()
+
+if(CMAKE_COMPILER_IS_GNUCC)
+  # Quench a warning on GCC
+  set_source_files_properties(${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/governor.cpp COMPILE_FLAGS "-Wno-missing-field-initializers ")
+elseif(MSVC)
+  # Quench a warning on MSVC
+  set_source_files_properties(${CMAKE_CURRENT_SOURCE_DIR}/src/tbb/scheduler.cpp COMPILE_FLAGS "/wd4458 ")
+endif()
+
+if(TBB_BUILD_TBBMALLOC)
+  # TBB malloc library
+  if (TBB_BUILD_STATIC)
+    add_library(tbbmalloc_static STATIC ${tbbmalloc_static_src})
+    set_property(TARGET tbbmalloc_static APPEND PROPERTY COMPILE_DEFINITIONS "__TBBMALLOC_BUILD=1")
+    set_property(TARGET tbbmalloc_static APPEND_STRING PROPERTY COMPILE_FLAGS ${DISABLE_RTTI})
+    install(TARGETS tbbmalloc_static ARCHIVE DESTINATION lib)
+  endif()
+
+  if (TBB_BUILD_SHARED)
+    add_library(tbbmalloc SHARED ${tbbmalloc_src})
+    set_property(TARGET tbbmalloc APPEND PROPERTY COMPILE_DEFINITIONS "__TBBMALLOC_BUILD=1")
+    set_property(TARGET tbbmalloc APPEND_STRING PROPERTY COMPILE_FLAGS ${DISABLE_RTTI})
+    add_dependencies(tbbmalloc tbb_def_files)
+    if (APPLE)
+      set_property(TARGET tbbmalloc APPEND PROPERTY LINK_FLAGS "-Wl,-exported_symbols_list,${CMAKE_CURRENT_BINARY_DIR}/tbbmalloc.def")
+    elseif(UNIX)
+      set_property(TARGET tbbmalloc APPEND PROPERTY LINK_FLAGS "-Wl,-version-script,${CMAKE_CURRENT_BINARY_DIR}/tbbmalloc.def")
+    elseif(WIN32)
+      set_property(TARGET tbbmalloc APPEND PROPERTY LINK_FLAGS "/DEF:${CMAKE_CURRENT_BINARY_DIR}/tbbmalloc.def")
+    endif()
+    install(TARGETS tbbmalloc DESTINATION lib)
+  endif()
+endif()
+
+if(TBB_BUILD_TBBMALLOC_PROXY)
+  # TBB malloc proxy library
+  if (TBB_BUILD_STATIC)
+    add_library(tbbmalloc_proxy_static STATIC ${tbbmalloc_proxy_src})
+    set_property(TARGET tbbmalloc_proxy_static APPEND PROPERTY COMPILE_DEFINITIONS "__TBBMALLOC_BUILD=1")
+    set_property(TARGET tbbmalloc_proxy_static APPEND_STRING PROPERTY COMPILE_FLAGS ${DISABLE_RTTI})
+    link_libraries(tbbmalloc_proxy_static tbbmalloc)
+    install(TARGETS tbbmalloc_proxy_static ARCHIVE DESTINATION lib)
+  endif()
+
+  if (TBB_BUILD_SHARED)
+    add_library(tbbmalloc_proxy SHARED ${tbbmalloc_proxy_src})
+    set_property(TARGET tbbmalloc_proxy APPEND PROPERTY COMPILE_DEFINITIONS "__TBBMALLOC_BUILD=1")
+    set_property(TARGET tbbmalloc_proxy APPEND_STRING PROPERTY COMPILE_FLAGS ${DISABLE_RTTI})
+    link_libraries(tbbmalloc_proxy tbbmalloc)
+    install(TARGETS tbbmalloc_proxy DESTINATION lib)
+  endif()
+endif()
+
+install(DIRECTORY include/tbb DESTINATION include)
diff --git a/build_files/build_environment/patches/cuew.diff b/build_files/build_environment/patches/cuew.diff
new file mode 100644
index 00000000000..0363034cd93
--- /dev/null
+++ b/build_files/build_environment/patches/cuew.diff
@@ -0,0 +1,26 @@
+--- CmakeLists.txt.orig	2015-12-31 03:46:41 -0700
++++ CMakeLists.txt	2016-04-01 13:28:33 -0600
+@@ -22,3 +22,10 @@
+ 
+ add_executable(testcuew cuewTest/cuewTest.c include/cuew.h)
+ target_link_libraries(testcuew cuew ${CMAKE_DL_LIBS})
++
++install(TARGETS cuew
++  LIBRARY DESTINATION lib COMPONENT libraries
++  ARCHIVE DESTINATION lib/static COMPONENT libraries)
++
++INSTALL(FILES ${CMAKE_CURRENT_SOURCE_DIR}/include/cuew.h
++  DESTINATION include/) 
+\ No newline at end of file
+--- src/cuew.c	2016-04-01 13:41:43 -0600
++++ src/cuew.c	2016-04-01 13:41:11 -0600
+@@ -15,7 +15,9 @@
+  */
+ 
+ #ifdef _MSC_VER
++#if _MSC_VER < 1900
+ #  define snprintf _snprintf
++#endif 
+ #  define popen _popen
+ #  define pclose _pclose
+ #  define _CRT_SECURE_NO_WARNINGS
diff --git a/build_files/build_environment/patches/distutildebugflags.diff b/build_files/build_environment/patches/distutildebugflags.diff
new file mode 100644
index 00000000000..3d6b688bc53
--- /dev/null
+++ b/build_files/build_environment/patches/distutildebugflags.diff
@@ -0,0 +1,11 @@
+--- _msvccompiler.py.orig	2017-01-17 00:57:48 -0700
++++ _msvccompiler.py	2017-05-20 09:47:26 -0600
+@@ -237,7 +237,7 @@
+             ldflags.extend(('/nodefaultlib:libucrt.lib', 'ucrt.lib'))
+ 
+         ldflags_debug = [
+-            '/nologo', '/INCREMENTAL:NO', '/LTCG', '/DEBUG:FULL'
++            '/nologo', '/INCREMENTAL:NO', '/LTCG'
+         ]
+ 
+         self.ldflags_exe = [*ldflags, '/MANIFEST:EMBED,ID=1']
diff --git a/build_files/build_environment/patches/ffmpeg.diff b/build_files/build_environment/patches/ffmpeg.diff
new file mode 100644
index 00000000000..75fc6490031
--- /dev/null
+++ b/build_files/build_environment/patches/ffmpeg.diff
@@ -0,0 +1,32 @@
+--- libavutil/common.h	2016-02-14 19:29:42 -0700
++++ libavutil/common.h	2016-03-30 09:50:29 -0600
+@@ -99,6 +99,11 @@
+ #define FFSWAP(type,a,b) do{type SWAP_tmp= b; b= a; a= SWAP_tmp;}while(0)
+ #define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0]))
+ 
++//msvc helper
++#ifdef _MSC_VER
++#define inline __inline
++#endif
++
+ /* misc math functions */
+ 
+ #ifdef HAVE_AV_CONFIG_H
+--- configure	2016-11-26 03:12:05.000000000 +0100
++++ configure	2017-04-05 03:24:35.000000000 +0200
+@@ -1899,7 +1899,6 @@
+     access
+     aligned_malloc
+     arc4random
+-    clock_gettime
+     closesocket
+     CommandLineToArgvW
+     CoTaskMemFree
+@@ -5494,7 +5493,6 @@
+ 
+ check_func  access
+ check_func_headers stdlib.h arc4random
+-check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
+ check_func  fcntl
+ check_func  fork
+ check_func  gethrtime
diff --git a/build_files/build_environment/patches/fftw3.diff b/build_files/build_environment/patches/fftw3.diff
new file mode 100644
index 00000000000..48d88414045
--- /dev/null
+++ b/build_files/build_environment/patches/fftw3.diff
@@ -0,0 +1,25 @@
+--- config.h.in	2014-03-04 11:44:58 -0700
++++ config.h.in	2016-03-30 11:42:49 -0600
+@@ -142,9 +142,6 @@
+ /* Define to 1 if you have the `gethrtime' function. */
+ #undef HAVE_GETHRTIME
+ 
+-/* Define to 1 if you have the `gettimeofday' function. */
+-#undef HAVE_GETTIMEOFDAY
+-
+ /* Define to 1 if hrtime_t is defined in <sys/time.h> */
+ #undef HAVE_HRTIME_T
+ 
+--- kernel/assert.c	2014-03-04 11:41:03 -0700
++++ kernel/assert.c	2016-04-01 09:41:05 -0600
+@@ -24,8 +24,10 @@
+ 
+ void X(assertion_failed)(const char *s, int line, const char *file)
+ {
++#if 0
+      fflush(stdout);
+      fprintf(stderr, "fftw: %s:%d: assertion failed: %s\n", file, line, s);
++#endif 
+ #ifdef HAVE_ABORT
+      abort();
+ #else
diff --git a/build_files/build_environment/patches/hdf5.diff b/build_files/build_environment/patches/hdf5.diff
new file mode 100644
index 00000000000..cb84625810d
--- /dev/null
+++ b/build_files/build_environment/patches/hdf5.diff
@@ -0,0 +1,11 @@
+--- UserMacros.cmake
++++ UserMacros.cmake
+@@ -16,6 +16,8 @@
+ if (BUILD_USER_DEFINED_LIBS)
+   MACRO_USER_DEFINED_LIBS ()
+ endif (BUILD_USER_DEFINED_LIBS)
++
++include(Config/cmake/usermacros/windows_mt.cmake)
+ #-----------------------------------------------------------------------------
+ #------------------- E X A M P L E   E N D -----------------------------------
+ #-----------------------------------------------------------------------------
diff --git a/build_files/build_environment/patches/hidapi.diff b/build_files/build_environment/patches/hidapi.diff
new file mode 100644
index 00000000000..720a8ae5ae9
--- /dev/null
+++ b/build_files/build_environment/patches/hidapi.diff
@@ -0,0 +1,15 @@
+--- hidapi/hidapi.h	2011-10-25 20:58:16 -0600
++++ hidapi/hidapi.h	2016-11-01 12:05:58 -0600
+@@ -30,7 +30,11 @@
+ #include <wchar.h>
+ 
+ #ifdef _WIN32
+-      #define HID_API_EXPORT __declspec(dllexport)
++      #ifdef HID_API_STATIC
++        #define HID_API_EXPORT 
++      #else
++        #define HID_API_EXPORT __declspec(dllexport)
++      #endif
+       #define HID_API_CALL
+ #else
+       #define HID_API_EXPORT /**< API export macro */
diff --git a/build_files/build_environment/install_deps_patches/llvm.patch b/build_files/build_environment/patches/install_deps_llvm.diff
index 968f011e57c..968f011e57c 100644
--- a/build_files/build_environment/install_deps_patches/llvm.patch
+++ b/build_files/build_environment/patches/install_deps_llvm.diff
diff --git a/build_files/build_environment/install_deps_patches/osl.patch b/build_files/build_environment/patches/install_deps_osl.diff
index 3b52403f740..3b52403f740 100644
--- a/build_files/build_environment/install_deps_patches/osl.patch
+++ b/build_files/build_environment/patches/install_deps_osl.diff
diff --git a/build_files/build_environment/patches/libfaad.diff b/build_files/build_environment/patches/libfaad.diff
new file mode 100644
index 00000000000..37605b29cd9
--- /dev/null
+++ b/build_files/build_environment/patches/libfaad.diff
@@ -0,0 +1,10 @@
+--- frontend/main.c	2008-09-22 11:55:09 -0600
++++ frontend/main.c	2016-04-06 15:20:36 -0600
+@@ -31,7 +31,6 @@
+ #ifdef _WIN32
+ #define WIN32_LEAN_AND_MEAN
+ #include <windows.h>
+-#define off_t __int64
+ #else
+ #include <time.h>
+ #endif
diff --git a/build_files/build_environment/patches/llvm-alloca-fix.diff b/build_files/build_environment/patches/llvm-alloca-fix.diff
new file mode 100644
index 00000000000..5394a472167
--- /dev/null
+++ b/build_files/build_environment/patches/llvm-alloca-fix.diff
@@ -0,0 +1,111 @@
+Index: lib/Target/X86/X86ISelLowering.cpp
+===================================================================
+--- lib/Target/X86/X86ISelLowering.cpp	2014-04-11 23:04:44.000000000 +0200
++++ lib/Target/X86/X86ISelLowering.cpp (working copy)
+@@ -15493,12 +15493,36 @@
+   // non-trivial part is impdef of ESP.
+ 
+   if (Subtarget->isTargetWin64()) {
++    const char *StackProbeSymbol = 
++      Subtarget->isTargetCygMing() ? "___chkstk" : "__chkstk";
++      
++    MachineInstrBuilder MIB;
++    
++    if (getTargetMachine().getCodeModel() == CodeModel::Large) {
++      // For large code model we need to do indirect call to __chkstk.
++    
++      // R11 will be used to contain the address of __chkstk.
++      // R11 is a volotiale register and assumed to be destoyed by the callee, 
++      // so there is no need to save and restore it.
++      BuildMI(*BB, MI, DL, TII->get(X86::MOV64ri), X86::R11)
++        .addExternalSymbol(StackProbeSymbol);
++      // Create a call to __chkstk function which address contained in R11.
++      MIB = BuildMI(*BB, MI, DL, TII->get(X86::CALL64r))
++                    .addReg(X86::R11, RegState::Kill);
++                  
++    } else {
++      
++      // For non-large code model we can do direct call to __chkstk.
++      
++      MIB = BuildMI(*BB, MI, DL, TII->get(X86::W64ALLOCA))
++              .addExternalSymbol(StackProbeSymbol);
++    }
++  
+     if (Subtarget->isTargetCygMing()) {
+       // ___chkstk(Mingw64):
+       // Clobbers R10, R11, RAX and EFLAGS.
+       // Updates RSP.
+-      BuildMI(*BB, MI, DL, TII->get(X86::W64ALLOCA))
+-        .addExternalSymbol("___chkstk")
++      MIB
+         .addReg(X86::RAX, RegState::Implicit)
+         .addReg(X86::RSP, RegState::Implicit)
+         .addReg(X86::RAX, RegState::Define | RegState::Implicit)
+@@ -15507,8 +15531,7 @@
+     } else {
+       // __chkstk(MSVCRT): does not update stack pointer.
+       // Clobbers R10, R11 and EFLAGS.
+-      BuildMI(*BB, MI, DL, TII->get(X86::W64ALLOCA))
+-        .addExternalSymbol("__chkstk")
++      MIB
+         .addReg(X86::RAX, RegState::Implicit)
+         .addReg(X86::EFLAGS, RegState::Define | RegState::Implicit);
+       // RAX has the offset to be subtracted from RSP.
+Index: lib/Target/X86/X86FrameLowering.cpp
+===================================================================
+--- lib/Target/X86/X86FrameLowering.cpp	2013-10-24 01:37:01.000000000 +0200
++++ lib/Target/X86/X86FrameLowering.cpp (working copy)
+@@ -635,25 +635,49 @@
+         .addReg(X86::EAX, RegState::Kill)
+         .setMIFlag(MachineInstr::FrameSetup);
+     }
++    
++    MachineInstrBuilder MIB;
+ 
+     if (Is64Bit) {
++           
+       // Handle the 64-bit Windows ABI case where we need to call __chkstk.
+       // Function prologue is responsible for adjusting the stack pointer.
+       BuildMI(MBB, MBBI, DL, TII.get(X86::MOV64ri), X86::RAX)
+         .addImm(NumBytes)
+         .setMIFlag(MachineInstr::FrameSetup);
++        
++      if (TM.getCodeModel() == CodeModel::Large) {
++        // For large code model we need to do indirect call to __chkstk.
++      
++          
++        // R11 will be used to contain the address of __chkstk.
++        // R11 is a volotiale register and assumed to be destoyed by the callee, 
++        // so there is no need to save and restore it.
++        BuildMI(MBB, MBBI, DL, TII.get(X86::MOV64ri), X86::R11)
++          .addExternalSymbol(StackProbeSymbol);
++        // Create a call to __chkstk function which address contained in R11.
++        MIB = BuildMI(MBB, MBBI, DL, TII.get(X86::CALL64r))
++                .addReg(X86::R11, RegState::Kill);
++      } else {
++      
++        // For non-large code model we can do direct call to __chkstk.
++              
++        MIB = BuildMI(MBB, MBBI, DL, TII.get(X86::W64ALLOCA))
++                .addExternalSymbol(StackProbeSymbol);
++      }
+     } else {
+       // Allocate NumBytes-4 bytes on stack in case of isEAXAlive.
+       // We'll also use 4 already allocated bytes for EAX.
+       BuildMI(MBB, MBBI, DL, TII.get(X86::MOV32ri), X86::EAX)
+         .addImm(isEAXAlive ? NumBytes - 4 : NumBytes)
+         .setMIFlag(MachineInstr::FrameSetup);
++        
++      MIB = BuildMI(MBB, MBBI, DL, TII.get(X86::CALLpcrel32))
++              .addExternalSymbol(StackProbeSymbol);
+     }
+ 
+-    BuildMI(MBB, MBBI, DL,
+-            TII.get(Is64Bit ? X86::W64ALLOCA : X86::CALLpcrel32))
+-      .addExternalSymbol(StackProbeSymbol)
+-      .addReg(StackPtr,    RegState::Define | RegState::Implicit)
++    
++    MIB.addReg(StackPtr,    RegState::Define | RegState::Implicit)
+       .addReg(X86::EFLAGS, RegState::Define | RegState::Implicit)
+       .setMIFlag(MachineInstr::FrameSetup);
+  
diff --git a/build_files/build_environment/patches/ming32sh.cmd b/build_files/build_environment/patches/ming32sh.cmd
new file mode 100644
index 00000000000..3259d9d3714
--- /dev/null
+++ b/build_files/build_environment/patches/ming32sh.cmd
@@ -0,0 +1,7 @@
+@title MinGW-w64 32-bit GCC build environment
+
+@echo Setting up environment for MinGW-w64 GCC 32-bit...
+
+@set PATH=%CD%\bin;%CD%\msys\1.0\bin;%cd%\..\..\perl32\site\bin;%cd%\..\..\perl32\bin;%cd%\..\..\c\bin;%PATH%
+
+
diff --git a/build_files/build_environment/patches/ming64sh.cmd b/build_files/build_environment/patches/ming64sh.cmd
new file mode 100644
index 00000000000..18fea3829f3
--- /dev/null
+++ b/build_files/build_environment/patches/ming64sh.cmd
@@ -0,0 +1,7 @@
+@title MinGW-w64 64-bit GCC build environment
+
+@echo Setting up environment for MinGW-w64 GCC 64-bit...
+
+@set PATH=%CD%\bin;%CD%\msys\1.0\bin;%cd%\..\..\perl\site\bin;%cd%\..\..\perl\bin;%cd%\..\..\c\bin;%PATH%
+
+
diff --git a/build_files/build_environment/patches/numpy.diff b/build_files/build_environment/patches/numpy.diff
new file mode 100644
index 00000000000..c4c57222838
--- /dev/null
+++ b/build_files/build_environment/patches/numpy.diff
@@ -0,0 +1,23 @@
+diff -Naur numpy-1.11.1/numpy/distutils/ccompiler.py numpy-1.11.1/numpy/distutils/ccompiler.py
+--- numpy-1.11.1/numpy/distutils/ccompiler.py	2016-06-25 08:38:34 -0600
++++ numpy-1.11.1/numpy/distutils/ccompiler.py	2016-08-04 12:33:43 -0600
+@@ -29,6 +29,7 @@
+ 
+ # Using customized CCompiler.spawn.
+ def CCompiler_spawn(self, cmd, display=None):
++    cmd = quote_args(cmd)
+     """
+     Execute a command in a sub-process.
+ 
+diff -Naur numpy-1.11.1/numpy/distutils/misc_util.py numpy-1.11.1/numpy/distutils/misc_util.py
+--- numpy-1.11.1/numpy/distutils/misc_util.py	2016-06-25 08:38:34 -0600
++++ numpy-1.11.1/numpy/distutils/misc_util.py	2016-08-04 12:34:56 -0600
+@@ -116,7 +116,7 @@
+     args = list(args)
+     for i in range(len(args)):
+         a = args[i]
+-        if ' ' in a and a[0] not in '"\'':
++        if ' ' in a and a[0] not in '"\'' and a[len(a)-1] not in '"\'':
+             args[i] = '"%s"' % (a)
+     return args
+ 
diff --git a/build_files/build_environment/patches/opencollada.diff b/build_files/build_environment/patches/opencollada.diff
new file mode 100644
index 00000000000..0c91b4151fe
--- /dev/null
+++ b/build_files/build_environment/patches/opencollada.diff
@@ -0,0 +1,32 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 3fc9be5..5112ce6 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -254,11 +254,11 @@
+ endif()

+ 

+ #adding PCRE

+-find_package(PCRE)

++#find_package(PCRE)

+ if (PCRE_FOUND)

+ 	message(STATUS "SUCCESSFUL: PCRE found")

+ else ()  # if pcre not found building its local copy from ./Externals

+-	if (WIN32 OR APPLE)

++	if (1)

+ 		message("WARNING: Native PCRE not found, taking PCRE from ./Externals")

+ 		add_definitions(-DPCRE_STATIC)

+ 		add_subdirectory(${EXTERNAL_LIBRARIES}/pcre)

+diff --git a/DAEValidator/library/include/no_warning_begin.orig b/DAEValidator/library/include/no_warning_begin
+index 3fc9be5..5112ce6 100644
+--- a/DAEValidator/library/include/no_warning_begin.orig	2017-05-31 16:56:39 -0600
++++ b/DAEValidator/library/include/no_warning_begin	2017-06-07 10:18:45 -0600
+@@ -2,6 +2,9 @@
+ #if defined(_WIN32)
+ #	pragma warning(push)
+ #	pragma warning(disable:4668)
++#	if _MSC_VER >=1900
++#		pragma warning(disable:5031)
++#	endif
+ #	if defined(_MSC_VER) && defined(_DEBUG)
+ #		pragma warning(disable:4548)
+ #	endif
diff --git a/build_files/build_environment/patches/opencolorio.diff b/build_files/build_environment/patches/opencolorio.diff
new file mode 100644
index 00000000000..4e947d89097
--- /dev/null
+++ b/build_files/build_environment/patches/opencolorio.diff
@@ -0,0 +1,21 @@
+diff -ru ./CMakeLists.txt ./CMakeLists.txt
+--- ./CMakeLists.txt	2014-09-11 21:08:18.000000000 +0200
++++ ./CMakeLists.txt	2016-05-15 17:17:01.000000000 +0200
+@@ -186,7 +186,7 @@
+         PATCH_COMMAND patch -f -p1 < ${CMAKE_SOURCE_DIR}/ext/tinyxml_${TINYXML_VERSION}.patch
+         BINARY_DIR ext/build/tinyxml
+         INSTALL_DIR ext/dist
+-        CMAKE_ARGS ${TINYXML_CMAKE_ARGS}
++        CMAKE_ARGS ${TINYXML_CMAKE_ARGS} -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DCMAKE_OSX_ARCHITECTURES=${CMAKE_OSX_ARCHITECTURES} -DCMAKE_OSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET} -DCMAKE_OSX_SYSROOT=${CMAKE_OSX_SYSROOT} -DCMAKE_C_FLAGS_DEBUG=${CMAKE_C_FLAGS_DEBUG} -DCMAKE_C_FLAGS_RELEASE=${CMAKE_C_FLAGS_RELEASE} -DCMAKE_CXX_FLAGS_DEBUG=${CMAKE_CXX_FLAGS_DEBUG} -DCMAKE_CXX_FLAGS_RELEASE=${CMAKE_CXX_FLAGS_RELEASE} -DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}
+     )
+     if(WIN32)
+         set(TINYXML_STATIC_LIBRARIES ${PROJECT_BINARY_DIR}/ext/dist/lib/tinyxml.lib)
+@@ -254,7 +254,7 @@
+         BINARY_DIR ext/build/yaml-cpp
+         PATCH_COMMAND patch -p1 < ${CMAKE_SOURCE_DIR}/ext/yaml-cpp-${YAML_CPP_VERSION}.patch
+         INSTALL_DIR ext/dist
+-        CMAKE_ARGS ${YAML_CPP_CMAKE_ARGS}
++        CMAKE_ARGS ${YAML_CPP_CMAKE_ARGS} -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DCMAKE_OSX_ARCHITECTURES=${CMAKE_OSX_ARCHITECTURES} -DCMAKE_OSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET} -DCMAKE_OSX_SYSROOT=${CMAKE_OSX_SYSROOT} -DCMAKE_C_FLAGS_DEBUG=${CMAKE_C_FLAGS_DEBUG} -DCMAKE_C_FLAGS_RELEASE=${CMAKE_C_FLAGS_RELEASE} -DCMAKE_CXX_FLAGS_DEBUG=${CMAKE_CXX_FLAGS_DEBUG} -DCMAKE_CXX_FLAGS_RELEASE=${CMAKE_CXX_FLAGS_RELEASE} -DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}
+     )
+     set(YAML_CPP_INCLUDE_DIRS ${PROJECT_BINARY_DIR}/ext/dist/include)
+     set(YAML_CPP_LIBRARY_DIRS ${PROJECT_BINARY_DIR}/ext/dist/lib)
diff --git a/build_files/build_environment/patches/openexr.diff b/build_files/build_environment/patches/openexr.diff
new file mode 100644
index 00000000000..ec18751fe74
--- /dev/null
+++ b/build_files/build_environment/patches/openexr.diff
@@ -0,0 +1,33 @@
+--- IlmImf/CMakeLists.txt 2014-08-10 06:23:56.000000000 +0200
++++ IlmImf/CMakeLists.txt 2017-01-08 04:06:04.931723800 +0100
+@@ -8,8 +8,8 @@
+ 
+ TARGET_LINK_LIBRARIES ( b44ExpLogTable
+   Half
+-  Iex${ILMBASE_LIBSUFFIX}
+   IlmThread${ILMBASE_LIBSUFFIX}
++  Iex${ILMBASE_LIBSUFFIX}
+   ${PTHREAD_LIB}
+ )
+ 
+@@ -25,8 +25,8 @@
+ 
+ TARGET_LINK_LIBRARIES ( dwaLookups
+   Half
+-  Iex${ILMBASE_LIBSUFFIX}
+   IlmThread${ILMBASE_LIBSUFFIX}
++  Iex${ILMBASE_LIBSUFFIX}
+   ${PTHREAD_LIB}
+ )
+ 
+@@ -138,9 +138,9 @@
+ 
+ TARGET_LINK_LIBRARIES ( IlmImf 
+   Half 
+-  Iex${ILMBASE_LIBSUFFIX}
+   Imath${ILMBASE_LIBSUFFIX}
+   IlmThread${ILMBASE_LIBSUFFIX}
++  Iex${ILMBASE_LIBSUFFIX}
+   ${PTHREAD_LIB} ${ZLIB_LIBRARIES}
+ )
+ 
diff --git a/build_files/build_environment/patches/openimageio_gdi.diff b/build_files/build_environment/patches/openimageio_gdi.diff
new file mode 100644
index 00000000000..af0c90638de
--- /dev/null
+++ b/build_files/build_environment/patches/openimageio_gdi.diff
@@ -0,0 +1,26 @@
+Index: OpenImageIO/osdep.h
+===================================================================
+--- OpenImageIO/osdep.h	(revision 61595)
++++ OpenImageIO/osdep.h	(working copy)
+@@ -34,6 +34,7 @@
+ # define WIN32_LEAN_AND_MEAN
+ # define VC_EXTRALEAN
+ # define NOMINMAX
++# define NOGDI
+ # include <windows.h>
+ #endif
+ 
+Index: OpenImageIO/platform.h
+===================================================================
+--- OpenImageIO/platform.h	(revision 61595)
++++ OpenImageIO/platform.h	(working copy)
+@@ -77,6 +77,9 @@
+ # ifndef NOMINMAX
+ #   define NOMINMAX
+ # endif
++# ifndef NOGDI
++#   define NOGDI
++# endif
+ # include <windows.h>
+ #endif
+ 
diff --git a/build_files/build_environment/patches/openimageio_idiff.diff b/build_files/build_environment/patches/openimageio_idiff.diff
new file mode 100644
index 00000000000..ae1884f76b5
--- /dev/null
+++ b/build_files/build_environment/patches/openimageio_idiff.diff
@@ -0,0 +1,13 @@
+--- idiff.cpp	2016-11-18 11:42:01 -0700
++++ idiff.cpp	2016-11-18 11:41:25 -0700
+@@ -308,8 +308,10 @@
+ // printed with three digit exponent. We change this behaviour to fit
+ // Linux way
+ #ifdef _MSC_VER
++#if _MSC_VER < 1900
+                 _set_output_format(_TWO_DIGIT_EXPONENT);
+ #endif
++#endif
+                 std::streamsize precis = std::cout.precision();
+                 std::cout << "  " << cr.nwarn << " pixels (" 
+                           << std::setprecision(3) << (100.0*cr.nwarn / npels) 
diff --git a/build_files/build_environment/patches/openimageio_staticexr.diff b/build_files/build_environment/patches/openimageio_staticexr.diff
new file mode 100644
index 00000000000..e1f0f473057
--- /dev/null
+++ b/build_files/build_environment/patches/openimageio_staticexr.diff
@@ -0,0 +1,11 @@
+--- CMakeLists.txt	2016-11-01 01:03:44 -0600
++++ CMakeLists.txt	2016-12-01 09:20:12 -0700
+@@ -454,7 +454,7 @@
+     add_definitions (-D_CRT_NONSTDC_NO_WARNINGS)
+     add_definitions (-D_SCL_SECURE_NO_WARNINGS)
+     add_definitions (-DJAS_WIN_MSVC_BUILD)
+-    add_definitions (-DOPENEXR_DLL)
++    add_definitions (-DOPJ_STATIC)
+     if (LINKSTATIC)
+         add_definitions (-DBoost_USE_STATIC_LIBS=1)
+     else ()
diff --git a/build_files/build_environment/patches/opensubdiv.diff b/build_files/build_environment/patches/opensubdiv.diff
new file mode 100644
index 00000000000..9e9cf7ad554
--- /dev/null
+++ b/build_files/build_environment/patches/opensubdiv.diff
@@ -0,0 +1,16 @@
+ opensubdiv/osd/d3d11VertexBuffer.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/opensubdiv/osd/d3d11VertexBuffer.cpp b/opensubdiv/osd/d3d11VertexBuffer.cpp
+index 603cbf4..07e7e0a 100644
+--- a/opensubdiv/osd/d3d11VertexBuffer.cpp
++++ b/opensubdiv/osd/d3d11VertexBuffer.cpp
+@@ -81,7 +81,7 @@ D3D11VertexBuffer::UpdateData(const float *src, int startVertex, int numVertices
+ 
+     deviceContext->Unmap(_uploadBuffer, 0);
+ 
+-    D3D11_BOX srcBox = { 0, 0, 0, size, 1, 1 };
++    D3D11_BOX srcBox = { 0, 0, 0, (UINT) size, 1, 1 };
+     deviceContext->CopySubresourceRegion(_buffer, 0, 0, 0, 0,
+                                          _uploadBuffer, 0, &srcBox);
+ }
diff --git a/build_files/build_environment/patches/openvdb.diff b/build_files/build_environment/patches/openvdb.diff
new file mode 100644
index 00000000000..f3afa13ea17
--- /dev/null
+++ b/build_files/build_environment/patches/openvdb.diff
@@ -0,0 +1,11 @@
+diff -Naur k:\BlenderDev\lib\win64_vc12_Harvest\openVDB\/include/openvdb/math/Coord.h .\openVDB/include/openvdb/math/Coord.h
+--- k:\BlenderDev\lib\win64_vc12_Harvest\openVDB\/include/openvdb/math/Coord.h	2016-03-30 15:09:49 -0600
++++ .\openVDB/include/openvdb/math/Coord.h	2016-04-01 06:53:47 -0600
+@@ -34,6 +34,7 @@
+ #include <openvdb/Platform.h>
+ #include "Math.h"
+ #include "Vec3.h"
++#define NOMINMAX
+ 
+ namespace tbb { class split; } // forward declaration
+ 
diff --git a/build_files/build_environment/patches/openvdb_vc2013.diff b/build_files/build_environment/patches/openvdb_vc2013.diff
new file mode 100644
index 00000000000..7dc3e476297
--- /dev/null
+++ b/build_files/build_environment/patches/openvdb_vc2013.diff
@@ -0,0 +1,35 @@
+--- openvdb/tree/LeafNode.h	2015-10-01 15:55:33 -0600
++++ openvdb/tree/LeafNode.h	2016-03-26 13:12:22 -0600
+@@ -70,13 +70,14 @@
+     typedef boost::shared_ptr<LeafNode>  Ptr;
+     typedef util::NodeMask<Log2Dim>      NodeMaskType;
+ 
+-    static const Index
+-        LOG2DIM     = Log2Dim,      // needed by parent nodes
+-        TOTAL       = Log2Dim,      // needed by parent nodes
+-        DIM         = 1 << TOTAL,   // dimension along one coordinate direction
+-        NUM_VALUES  = 1 << 3 * Log2Dim,
+-        NUM_VOXELS  = NUM_VALUES,   // total number of voxels represented by this node
+-        SIZE        = NUM_VALUES,
++	static const Index
++		LOG2DIM = Log2Dim,      // needed by parent nodes
++		TOTAL = Log2Dim,      // needed by parent nodes
++		DIM = 1 << TOTAL,   // dimension along one coordinate direction
++		NUM_VALUES = 1 << 3 * Log2Dim,
++		NUM_VOXELS = NUM_VALUES;   // total number of voxels represented by this node
++	static const Index
++		SIZE        = NUM_VALUES,
+         LEVEL       = 0;            // level 0 = leaf
+ 
+     /// @brief ValueConverter<T>::Type is the type of a LeafNode having the same
+--- openvdb/PlatformConfig.h	2016-03-30 15:09:49 -0600
++++ openvdb/PlatformConfig.h	2016-04-01 07:00:38 -0600
+@@ -47,7 +47,7 @@
+     #if !defined(OPENVDB_OPENEXR_STATICLIB) && !defined(OPENEXR_DLL)
+         #define OPENEXR_DLL
+     #endif
+-
++    #define NOMINMAX
+ #endif // _WIN32
+ 
+ #endif // OPENVDB_PLATFORMCONFIG_HAS_BEEN_INCLUDED
diff --git a/build_files/build_environment/patches/osl.diff b/build_files/build_environment/patches/osl.diff
new file mode 100644
index 00000000000..fcb5ec4165f
--- /dev/null
+++ b/build_files/build_environment/patches/osl.diff
@@ -0,0 +1,12 @@
+diff -Naur osl/src/external_osl/src/cmake/flexbison.cmake osl_bak/src/external_osl/src/cmake/flexbison.cmake
+--- osl/src/external_osl//src/cmake/flexbison.cmake	2016-01-29 11:15:22 -0700
++++ osl_bak/src/external_osl/src/cmake/flexbison.cmake	2016-02-29 21:26:26 -0700
+@@ -77,7 +77,7 @@
+           DEPENDS ${${compiler_headers}}
+           WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} )
+         ADD_CUSTOM_COMMAND ( OUTPUT ${flexoutputcxx} 
+-          COMMAND ${FLEX_EXECUTABLE} -o ${flexoutputcxx} "${CMAKE_CURRENT_SOURCE_DIR}/${flexsrc}"
++          COMMAND ${FLEX_EXECUTABLE} ${FLEX_EXTRA_OPTIONS} -o ${flexoutputcxx} "${CMAKE_CURRENT_SOURCE_DIR}/${flexsrc}"
+           MAIN_DEPENDENCY ${flexsrc}
+           DEPENDS ${${compiler_headers}}
+           WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} )
diff --git a/build_files/build_environment/patches/osl_simd_oiio.diff b/build_files/build_environment/patches/osl_simd_oiio.diff
new file mode 100644
index 00000000000..5062a597167
--- /dev/null
+++ b/build_files/build_environment/patches/osl_simd_oiio.diff
@@ -0,0 +1,14 @@
+--- CMakeLists.txt	2016-10-31 16:48:19 -0600
++++ CMakeLists.txt	2017-04-10 10:38:48 -0600
+@@ -269,6 +269,11 @@
+     add_definitions ("-DOIIO_STATIC_BUILD=1")
+ endif ()
+ 
++set (OIIO_NOSIMD OFF CACHE BOOL "Disable simd support in oiio")
++if (OIIO_NOSIMD)
++    add_definitions ("-DOIIO_NO_SSE=1")
++endif ()
++
+ if (OSL_NO_DEFAULT_TEXTURESYSTEM)
+     add_definitions ("-DOSL_NO_DEFAULT_TEXTURESYSTEM=1")
+ endif ()
diff --git a/build_files/build_environment/patches/pthreads.diff b/build_files/build_environment/patches/pthreads.diff
new file mode 100644
index 00000000000..bbabfdc8925
--- /dev/null
+++ b/build_files/build_environment/patches/pthreads.diff
@@ -0,0 +1,13 @@
+--- pthread.h.orig	2012-05-26 22:16:45 -0600
++++ pthread.h	2016-04-01 09:20:36 -0600
+@@ -109,6 +109,10 @@
+ /* Include everything */
+ #endif
+ 
++#if _MSC_VER >= 1900
++#   define HAVE_STRUCT_TIMESPEC 1
++#endif
++
+ #if defined(_UWIN)
+ #   define HAVE_STRUCT_TIMESPEC 1
+ #   define HAVE_SIGNAL_H        1
diff --git a/build_files/build_environment/patches/pyshell.diff b/build_files/build_environment/patches/pyshell.diff
new file mode 100644
index 00000000000..7ccffe4c040
--- /dev/null
+++ b/build_files/build_environment/patches/pyshell.diff
@@ -0,0 +1,12 @@
+--- pyshellext.cpp.orig	2017-01-17 00:57:53 -0700
++++ pyshellext.cpp	2017-05-20 15:21:51 -0600
+@@ -13,6 +13,9 @@
+ #include <strsafe.h>
+ 
+ #include "pyshellext_h.h"
++#if _MSC_VER < 1900
++#include "pyshellext_i.c"
++#endif 
+ 
+ #define DDWM_UPDATEWINDOW (WM_USER+3)
+ 
diff --git a/build_files/build_environment/patches/python.diff b/build_files/build_environment/patches/python.diff
new file mode 100644
index 00000000000..9e7eccfafff
--- /dev/null
+++ b/build_files/build_environment/patches/python.diff
@@ -0,0 +1,82 @@
+--- Include/Python.h	2017-07-07 21:33:27 -0600
++++ Include/Python.h	2017-09-19 10:36:10 -0600
+@@ -2,6 +2,10 @@
+ #define Py_PYTHON_H
+ /* Since this is a "meta-include" file, no #ifdef __cplusplus / extern "C" { */
+ 
++#if _MSC_VER < 1900
++#define inline __inline
++#endif
++
+ /* Include nearly all Python header files */
+ 
+ #include "patchlevel.h"
+--- Include/pydtrace.h	2017-07-07 21:33:27 -0600
++++ Include/pydtrace.h	2017-09-19 10:32:31 -0600
+@@ -2,6 +2,11 @@
+ 
+ #ifndef Py_DTRACE_H
+ #define Py_DTRACE_H
++
++#if _MSC_VER < 1900
++#define inline __inline
++#endif
++
+ #ifdef __cplusplus
+ extern "C" {
+ #endif
+
+--- Modules/_blake2/impl/blake2.h	2017-07-07 21:33:27 -0600
++++ Modules/_blake2/impl/blake2.h	2017-09-19 10:22:41 -0600
+@@ -19,6 +19,10 @@
+ #include <stddef.h>
+ #include <stdint.h>
+ 
++#if _MSC_VER < 1900
++#define inline __inline 
++#endif
++
+ #ifdef BLAKE2_NO_INLINE
+ #define BLAKE2_LOCAL_INLINE(type) static type
+ #endif
+
+--- pcbuild/build.bat   2016-05-21 09:53:55 -0600
++++ pcbuild/build.bat   2016-05-21 09:56:16 -0600
+@@ -59,6 +59,7 @@
+ if "%~1"=="-h" goto Usage
+ if "%~1"=="-c" (set conf=%2) & shift & shift & goto CheckOpts
+ if "%~1"=="-p" (set platf=%2) & shift & shift & goto CheckOpts
++if "%~1"=="-k" (set vs_toolset=%2) & shift & shift & goto CheckOpts
+ if "%~1"=="-r" (set target=Rebuild) & shift & goto CheckOpts
+ if "%~1"=="-t" (set target=%2) & shift & shift & goto CheckOpts
+ if "%~1"=="-d" (set conf=Debug) & shift & goto CheckOpts
+@@ -120,7 +120,7 @@
+
+ :Kill
+ echo on
+-%MSBUILD% "%dir%\pythoncore.vcxproj" /t:KillPython %verbose%^
++%MSBUILD% "%dir%\pythoncore.vcxproj" /t:KillPython %verbose% /p:PlatformToolset=%vs_toolset%^
+  /p:Configuration=%conf% /p:Platform=%platf%^
+  /p:KillPython=true
+
+@@ -130,7 +130,7 @@
+ rem batch is, shall we say, "lackluster"
+ echo on
+ %MSBUILD% "%dir%pcbuild.proj" /t:%target% %parallel% %verbose%^
+- /p:Configuration=%conf% /p:Platform=%platf%^
++ /p:Configuration=%conf% /p:Platform=%platf% /p:PlatformToolset=%vs_toolset%^
+  /p:IncludeExternals=%IncludeExternals%^
+  /p:IncludeSSL=%IncludeSSL% /p:IncludeTkinter=%IncludeTkinter%^
+  /p:UseTestMarker=%UseTestMarker%^
+
+--- pcbuild/sqlite3.vcxproj	2015-12-06 18:39:10 -0700
++++ pcbuild/sqlite3.vcxproj	2016-11-02 09:25:56 -0600
+@@ -43,7 +43,7 @@
+   <Import Project="python.props" />
+   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+   <PropertyGroup Label="Configuration">
+-    <ConfigurationType>DynamicLibrary</ConfigurationType>
++    <ConfigurationType>StaticLibrary</ConfigurationType>
+     <CharacterSet>NotSet</CharacterSet>
+   </PropertyGroup>
+   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
diff --git a/build_files/build_environment/patches/python_apple.diff b/build_files/build_environment/patches/python_apple.diff
new file mode 100644
index 00000000000..34a7906ed6c
--- /dev/null
+++ b/build_files/build_environment/patches/python_apple.diff
@@ -0,0 +1,25 @@
+--- pyconfig.h.in	2017-09-19 14:41:01.000000000 +0300
++++ pyconfig.h.in	2017-09-19 14:43:18.000000000 +0300
+@@ -119,12 +119,6 @@
+ /* Define to 1 if you have the `clock' function. */
+ #undef HAVE_CLOCK
+ 
+-/* Define to 1 if you have the `clock_getres' function. */
+-#undef HAVE_CLOCK_GETRES
+-
+-/* Define to 1 if you have the `clock_gettime' function. */
+-#undef HAVE_CLOCK_GETTIME
+-
+ /* Define to 1 if you have the `clock_settime' function. */
+ #undef HAVE_CLOCK_SETTIME
+ 
+@@ -369,9 +363,6 @@
+ /* Define this if you have flockfile(), getc_unlocked(), and funlockfile() */
+ #undef HAVE_GETC_UNLOCKED
+ 
+-/* Define to 1 if you have the `getentropy' function. */
+-#undef HAVE_GETENTROPY
+-
+ /* Define to 1 if you have the `getgrouplist' function. */
+ #undef HAVE_GETGROUPLIST
+ 
diff --git a/build_files/build_environment/patches/python_runtime_vc2013.diff b/build_files/build_environment/patches/python_runtime_vc2013.diff
new file mode 100644
index 00000000000..186d2b36c07
--- /dev/null
+++ b/build_files/build_environment/patches/python_runtime_vc2013.diff
@@ -0,0 +1,29 @@
+--- _msvccompiler.py.orig	2017-05-20 19:31:45 -0600
++++ _msvccompiler.py	2017-06-10 10:05:38 -0600
+@@ -222,9 +222,9 @@
+         # use /MT[d] to build statically, then switch from libucrt[d].lib to ucrt[d].lib
+         # later to dynamically link to ucrtbase but not vcruntime.
+         self.compile_options = [
+-            '/nologo', '/Ox', '/W3', '/GL', '/DNDEBUG'
++            '/nologo', '/Ox', '/W3', '/GL', '/DNDEBUG' , '/MD'
+         ]
+-        self.compile_options.append('/MD' if self._vcruntime_redist else '/MT')
++        #self.compile_options.append('/MD' if self._vcruntime_redist else '/MT')
+ 
+         self.compile_options_debug = [
+             '/nologo', '/Od', '/MDd', '/Zi', '/W3', '/D_DEBUG'
+@@ -233,11 +233,11 @@
+         ldflags = [
+             '/nologo', '/INCREMENTAL:NO', '/LTCG'
+         ]
+-        if not self._vcruntime_redist:
+-            ldflags.extend(('/nodefaultlib:libucrt.lib', 'ucrt.lib'))
++        #if not self._vcruntime_redist:
++        #    ldflags.extend(('/nodefaultlib:libucrt.lib', 'ucrt.lib'))
+ 
+         ldflags_debug = [
+-            '/nologo', '/INCREMENTAL:NO', '/LTCG', '/DEBUG:FULL'
++            '/nologo', '/INCREMENTAL:NO', '/LTCG'
+         ]
+ 
+         self.ldflags_exe = [*ldflags, '/MANIFEST:EMBED,ID=1']
diff --git a/build_files/build_environment/patches/schroedinger.diff b/build_files/build_environment/patches/schroedinger.diff
new file mode 100644
index 00000000000..6acb35f2a7b
--- /dev/null
+++ b/build_files/build_environment/patches/schroedinger.diff
@@ -0,0 +1,54 @@
+--- configure.orig	2012-01-22 19:06:43 -0700
++++ configure	2016-04-06 20:00:50 -0600
+@@ -16492,10 +16492,10 @@
+ 	HAVE_ORC=yes
+ fi
+ if test "x${HAVE_ORC}" != xyes ; then
+-  as_fn_error $? "orc-0.4 >= $ORC_VER is required" "$LINENO" 5
++  $as_echo "orc-0.4 >= $ORC_VER is required" 
+ fi
+ SCHRO_PKG_DEPS="$SCHRO_PKG_DEPS orc-0.4 >= $ORC_VER"
+-ORCC=`$PKG_CONFIG --variable=orcc orc-0.4`
++#ORCC=`$PKG_CONFIG --variable=orcc orc-0.4`
+ 
+  if test "x$cross_compiling" != xyes; then
+   HAVE_ORCC_TRUE=
+--- Makefile.in	2012-01-22 18:06:42 -0700
++++ Makefile.in	2016-04-06 20:30:09 -0600
+@@ -291,7 +291,7 @@
+ top_builddir = @top_builddir@
+ top_srcdir = @top_srcdir@
+ AUTOMAKE_OPTIONS = foreign
+-SUBDIRS = schroedinger doc tools testsuite
++SUBDIRS = schroedinger doc tools 
+ DISTCHECK_CONFIGURE_FLAGS = --enable-gtk-doc
+ DIST_SUBDIRS = schroedinger doc tools testsuite
+ EXTRA_DIST = COPYING COPYING.GPL COPYING.LGPL COPYING.MIT COPYING.MPL \
+
+--- schroedinger.pc.in  2011-03-21 17:08:39 -0600
++++ schroedinger.pc.in  2016-04-08 13:30:42 -0600
+@@ -7,9 +7,9 @@
+
+ Name: schroedinger-@SCHRO_MAJORMINOR@
+ Description: Dirac codec library
+-Requires.private: @SCHRO_PKG_DEPS@
++Requires: @SCHRO_PKG_DEPS@
+ Version: @VERSION@
+-Libs: -L${libdir} -lschroedinger-@SCHRO_MAJORMINOR@
++Libs: -L${libdir} -lschroedinger-@SCHRO_MAJORMINOR@ -lorc-0.4
+ Libs.private: @PTHREAD_LIBS@ @LIBM@
+ Cflags: -I${includedir}
+ 
+--- ./schroedinger/schrodecoder.c	2012-01-23 00:38:57.000000000 +0100
++++ ./schroedinger/schrodecoder.c	2016-05-15 06:07:24.000000000 +0200
+@@ -70,8 +70,8 @@
+ };
+ 
+ 
+-int _schro_decode_prediction_only;
+-int _schro_telemetry;
++int _schro_decode_prediction_only = 0;
++int _schro_telemetry = 0;
+ 
+ static void schro_decoder_x_decode_motion (SchroAsyncStage * stage);
+ static void schro_decoder_x_render_motion (SchroAsyncStage * stage);
diff --git a/build_files/build_environment/patches/sdl.diff b/build_files/build_environment/patches/sdl.diff
new file mode 100644
index 00000000000..b309d0230f3
--- /dev/null
+++ b/build_files/build_environment/patches/sdl.diff
@@ -0,0 +1,50 @@
+diff -ru /Users/brecht/dev/lib/deps/Downloads/SDL2-2.0.4/src/video/SDL_video.c ./src/video/SDL_video.c
+--- /Users/brecht/dev/lib/deps/Downloads/SDL2-2.0.4/src/video/SDL_video.c	2016-01-02 20:56:31.000000000 +0100
++++ ./src/video/SDL_video.c	2016-05-15 02:58:27.000000000 +0200
+@@ -137,7 +137,7 @@
+ 
+ #define FULLSCREEN_MASK (SDL_WINDOW_FULLSCREEN_DESKTOP | SDL_WINDOW_FULLSCREEN)
+ 
+-#ifdef __MACOSX__
++#if SDL_VIDEO_DRIVER_COCOA
+ /* Support for Mac OS X fullscreen spaces */
+ extern SDL_bool Cocoa_IsWindowInFullscreenSpace(SDL_Window * window);
+ extern SDL_bool Cocoa_SetWindowFullscreenSpace(SDL_Window * window, SDL_bool state);
+@@ -1141,7 +1141,7 @@
+     if ( window->is_hiding && fullscreen )
+         return 0;
+ 
+-#ifdef __MACOSX__
++#if SDL_VIDEO_DRIVER_COCOA
+     /* if the window is going away and no resolution change is necessary,
+      do nothing, or else we may trigger an ugly double-transition
+      */
+@@ -2365,7 +2365,7 @@
+         return SDL_FALSE;
+     }
+ 
+-#ifdef __MACOSX__
++#if SDL_VIDEO_DRIVER_COCOA
+     if (Cocoa_IsWindowInFullscreenSpace(window)) {
+         return SDL_FALSE;
+     }
+--- CMakeLists.txt.old	2016-01-02 12:56:31 -0700
++++ CMakeLists.txt	2016-10-03 11:24:24 -0600
+@@ -609,7 +609,7 @@
+       list(APPEND EXTRA_LIBS m)
+     endif()
+
+-    check_library_exists(iconv iconv_open "" HAVE_LIBICONV)
++    #check_library_exists(iconv iconv_open "" HAVE_LIBICONV)
+     if(HAVE_LIBICONV)
+       list(APPEND EXTRA_LIBS iconv)
+       set(HAVE_ICONV 1)
+@@ -1455,7 +1455,7 @@
+ set(_INSTALL_LIBS "SDL2main")
+ 
+ if(SDL_SHARED)
+-  add_library(SDL2 SHARED ${SOURCE_FILES})
++  add_library(SDL2 SHARED ${SOURCE_FILES} ${VERSION_SOURCES})
+   if(UNIX)
+     set_target_properties(SDL2 PROPERTIES
+       VERSION ${LT_VERSION}
diff --git a/build_files/build_environment/patches/semi.txt b/build_files/build_environment/patches/semi.txt
new file mode 100644
index 00000000000..092bc2b0412
--- /dev/null
+++ b/build_files/build_environment/patches/semi.txt
@@ -0,0 +1 @@
+;
diff --git a/build_files/build_environment/patches/sndfile.diff b/build_files/build_environment/patches/sndfile.diff
new file mode 100644
index 00000000000..ab43baa78df
--- /dev/null
+++ b/build_files/build_environment/patches/sndfile.diff
@@ -0,0 +1,42 @@
+--- src/Makefile.in	2017-09-26 01:28:47.000000000 +0300
++++ src/Makefile.in	2017-09-26 01:19:06.000000000 +0300
+@@ -513,7 +513,7 @@
+ libcommon_la_SOURCES = common.c file_io.c command.c pcm.c ulaw.c alaw.c \
+ 		float32.c double64.c ima_adpcm.c ms_adpcm.c gsm610.c dwvw.c vox_adpcm.c \
+ 		interleave.c strings.c dither.c cart.c broadcast.c audio_detect.c \
+- 		ima_oki_adpcm.c ima_oki_adpcm.h alac.c chunk.c ogg.c chanmap.c \
++		ima_oki_adpcm.c ima_oki_adpcm.h alac.c chunk.c ogg.c chanmap.c \
+ 		windows.c id3.c $(WIN_VERSION_FILE)
+ 
+ 
+@@ -719,10 +719,10 @@
+ 	$(AM_V_CCLD)$(LINK)  $(GSM610_libgsm_la_OBJECTS) $(GSM610_libgsm_la_LIBADD) $(LIBS)
+ 
+ libcommon.la: $(libcommon_la_OBJECTS) $(libcommon_la_DEPENDENCIES) $(EXTRA_libcommon_la_DEPENDENCIES) 
+-	$(AM_V_CCLD)$(LINK)  $(libcommon_la_OBJECTS) $(libcommon_la_LIBADD) $(LIBS)
++	$(AM_V_CCLD)$(LINK)  $(libcommon_la_OBJECTS) $(libcommon_la_LIBADD) $(LIBS) $(EXTERNAL_XIPH_LIBS)
+ 
+ libsndfile.la: $(libsndfile_la_OBJECTS) $(libsndfile_la_DEPENDENCIES) $(EXTRA_libsndfile_la_DEPENDENCIES) 
+-	$(AM_V_CCLD)$(libsndfile_la_LINK) -rpath $(libdir) $(libsndfile_la_OBJECTS) $(libsndfile_la_LIBADD) $(LIBS)
++	$(AM_V_CCLD)$(libsndfile_la_LINK) -rpath $(libdir) $(libsndfile_la_OBJECTS) $(libsndfile_la_LIBADD) $(LIBS) $(EXTERNAL_XIPH_LIBS)
+ 
+ clean-checkPROGRAMS:
+ 	@list='$(check_PROGRAMS)'; test -n "$$list" || exit 0; \
+@@ -924,7 +924,7 @@
+ @am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libsndfile_la_CPPFLAGS) $(CPPFLAGS) $(libsndfile_la_CFLAGS) $(CFLAGS) -c -o libsndfile_la-dwd.lo `test -f 'dwd.c' || echo '$(srcdir)/'`dwd.c
+ 
+ libsndfile_la-flac.lo: flac.c
+-@am__fastdepCC_TRUE@	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libsndfile_la_CPPFLAGS) $(CPPFLAGS) $(libsndfile_la_CFLAGS) $(CFLAGS) -MT libsndfile_la-flac.lo -MD -MP -MF $(DEPDIR)/libsndfile_la-flac.Tpo -c -o libsndfile_la-flac.lo `test -f 'flac.c' || echo '$(srcdir)/'`flac.c
++@am__fastdepCC_TRUE@	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libsndfile_la_CPPFLAGS) $(CPPFLAGS) $(libsndfile_la_CFLAGS) $(CFLAGS) $(EXTERNAL_XIPH_CFLAGS) -MT libsndfile_la-flac.lo -MD -MP -MF $(DEPDIR)/libsndfile_la-flac.Tpo -c -o libsndfile_la-flac.lo `test -f 'flac.c' || echo '$(srcdir)/'`flac.c
+ @am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/libsndfile_la-flac.Tpo $(DEPDIR)/libsndfile_la-flac.Plo
+ @AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='flac.c' object='libsndfile_la-flac.lo' libtool=yes @AMDEPBACKSLASH@
+ @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@@ -1092,7 +1092,7 @@
+ @am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libsndfile_la_CPPFLAGS) $(CPPFLAGS) $(libsndfile_la_CFLAGS) $(CFLAGS) -c -o libsndfile_la-rf64.lo `test -f 'rf64.c' || echo '$(srcdir)/'`rf64.c
+ 
+ libsndfile_la-ogg_vorbis.lo: ogg_vorbis.c
+-@am__fastdepCC_TRUE@	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libsndfile_la_CPPFLAGS) $(CPPFLAGS) $(libsndfile_la_CFLAGS) $(CFLAGS) -MT libsndfile_la-ogg_vorbis.lo -MD -MP -MF $(DEPDIR)/libsndfile_la-ogg_vorbis.Tpo -c -o libsndfile_la-ogg_vorbis.lo `test -f 'ogg_vorbis.c' || echo '$(srcdir)/'`ogg_vorbis.c
++@am__fastdepCC_TRUE@	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libsndfile_la_CPPFLAGS) $(CPPFLAGS) $(libsndfile_la_CFLAGS) $(CFLAGS) $(EXTERNAL_XIPH_CFLAGS) -MT libsndfile_la-ogg_vorbis.lo -MD -MP -MF $(DEPDIR)/libsndfile_la-ogg_vorbis.Tpo -c -o libsndfile_la-ogg_vorbis.lo `test -f 'ogg_vorbis.c' || echo '$(srcdir)/'`ogg_vorbis.c
+ @am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/libsndfile_la-ogg_vorbis.Tpo $(DEPDIR)/libsndfile_la-ogg_vorbis.Plo
+ @AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='ogg_vorbis.c' object='libsndfile_la-ogg_vorbis.lo' libtool=yes @AMDEPBACKSLASH@
+ @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
diff --git a/build_files/build_environment/windows/build_deps.cmd b/build_files/build_environment/windows/build_deps.cmd
new file mode 100644
index 00000000000..96280014df2
--- /dev/null
+++ b/build_files/build_environment/windows/build_deps.cmd
@@ -0,0 +1,122 @@
+@echo off
+if NOT "%1" == "" (
+	if "%1" == "2013" (
+    echo "Building for VS2013"
+    set VSVER=12.0
+    set VSVER_SHORT=12
+    set BuildDir=VS12
+    goto par2
+  )
+	if "%1" == "2015" (
+    echo "Building for VS2015"
+    set VSVER=14.0
+    set VSVER_SHORT=14
+    set BuildDir=VS14
+    goto par2
+  )
+)
+:usage
+
+Echo Usage build_deps 2013/2015 x64/x86
+goto exit
+:par2
+if NOT "%2" == "" (
+	if "%2" == "x86" (
+    echo "Building for x86"
+    set HARVESTROOT=Windows_vc
+    set ARCH=86
+		if "%1" == "2013" (
+			set CMAKE_BUILDER=Visual Studio 12 2013
+		)
+		if "%1" == "2015" (
+			set CMAKE_BUILDER=Visual Studio 14 2015
+		)
+    goto start
+  )
+	if "%2" == "x64" (
+    echo "Building for x64"
+    set HARVESTROOT=Win64_vc
+    set ARCH=64
+		if "%1" == "2013" (
+			set CMAKE_BUILDER=Visual Studio 12 2013 Win64
+		)
+		if "%1" == "2015" (
+			set CMAKE_BUILDER=Visual Studio 14 2015 Win64
+		)
+    goto start
+  )
+)
+goto usage
+
+:start
+setlocal ENABLEEXTENSIONS
+set CMAKE_DEBUG_OPTIONS=-DWITH_OPTIMIZED_DEBUG=On
+if "%3" == "debug" set CMAKE_DEBUG_OPTIONS=-DWITH_OPTIMIZED_DEBUG=Off
+
+set SOURCE_DIR=%~dp0\..
+set BUILD_DIR=%cd%\build
+set HARVEST_DIR=%BUILD_DIR%\output
+set STAGING=%BUILD_DIR%\S
+
+rem for python module build
+set MSSdk=1 
+set DISTUTILS_USE_SDK=1  
+rem for python externals source to be shared between the various archs and compilers
+mkdir %BUILD_DIR%\downloads\externals
+
+REM Detect MSVC Installation
+if DEFINED VisualStudioVersion goto msvc_detect_finally
+set VALUE_NAME=ProductDir
+REM Check 64 bits
+set KEY_NAME="HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\%VSVER%\Setup\VC"
+for /F "usebackq skip=2 tokens=1-2*" %%A IN (`REG QUERY %KEY_NAME% /v %VALUE_NAME% 2^>nul`) DO set MSVC_VC_DIR=%%C
+if DEFINED MSVC_VC_DIR goto msvc_detect_finally
+REM Check 32 bits
+set KEY_NAME="HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\VisualStudio\%VSVER%\Setup\VC"
+for /F "usebackq skip=2 tokens=1-2*" %%A IN (`REG QUERY %KEY_NAME% /v %VALUE_NAME% 2^>nul`) DO set MSVC_VC_DIR=%%C
+if DEFINED MSVC_VC_DIR goto msvc_detect_finally
+:msvc_detect_finally
+if DEFINED MSVC_VC_DIR call "%MSVC_VC_DIR%\vcvarsall.bat"
+echo on
+
+REM Sanity Checks
+where /Q msbuild
+if %ERRORLEVEL% NEQ 0 (
+	echo Error: "MSBuild" command not in the PATH.
+	echo You must have MSVC installed and run this from the "Developer Command Prompt"
+	echo ^(available from Visual Studio's Start menu entry^), aborting!
+	goto EOF
+)
+where /Q cmake
+if %ERRORLEVEL% NEQ 0 (
+	echo Error: "CMake" command not in the PATH.
+	echo You must have CMake installed and added to your PATH, aborting!
+	goto EOF
+)
+
+set StatusFile=%BUILD_DIR%\%1_%2.log
+set path=%BUILD_DIR%\downloads\mingw\mingw64\msys\1.0\bin\;%BUILD_DIR%\downloads\nasm-2.12.01\;%path%
+mkdir %STAGING%\%BuildDir%%ARCH%R
+cd %Staging%\%BuildDir%%ARCH%R
+echo %DATE% %TIME% : Start > %StatusFile%
+cmake -G "%CMAKE_BUILDER%" %SOURCE_DIR% -DDOWNLOAD_DIR=%BUILD_DIR%/downloads -DBUILD_MODE=Release -DHARVEST_TARGET=%HARVEST_DIR%/%HARVESTROOT%%VSVER_SHORT%/
+echo %DATE% %TIME% : Release Configuration done >> %StatusFile%
+msbuild /m "ll.vcxproj" /p:Configuration=Release /fl /flp:logfile=BlenderDeps_llvm.log;Verbosity=normal
+msbuild /m "BlenderDependencies.sln" /p:Configuration=Release /fl /flp:logfile=BlenderDeps.log;Verbosity=minimal  /verbosity:minimal
+echo %DATE% %TIME% : Release Build done >> %StatusFile%
+cmake --build . --target Harvest_Release_Results  > Harvest_Release.txt
+echo %DATE% %TIME% : Release Harvest done >> %StatusFile%
+cd %BUILD_DIR%
+mkdir %STAGING%\%BuildDir%%ARCH%D
+cd %Staging%\%BuildDir%%ARCH%D
+cmake -G "%CMAKE_BUILDER%" %SOURCE_DIR% -DDOWNLOAD_DIR=%BUILD_DIR%/downloads -DCMAKE_BUILD_TYPE=Debug -DBUILD_MODE=Debug -DHARVEST_TARGET=%HARVEST_DIR%/%HARVESTROOT%%VSVER_SHORT%/  %CMAKE_DEBUG_OPTIONS%
+echo %DATE% %TIME% : Debug Configuration done >> %StatusFile%
+msbuild /m "ll.vcxproj" /p:Configuration=Debug /fl /flp:logfile=BlenderDeps_llvm.log;;Verbosity=normal 
+msbuild /m "BlenderDependencies.sln" /p:Configuration=Debug /verbosity:n /fl /flp:logfile=BlenderDeps.log;;Verbosity=normal
+echo %DATE% %TIME% : Debug Build done >> %StatusFile%
+cmake --build . --target Harvest_Debug_Results> Harvest_Debug.txt
+echo %DATE% %TIME% : Debug Harvest done >> %StatusFile%
+cd %BUILD_DIR%
+
+:exit
+Echo .
diff --git a/build_files/build_environment/windows/buildall.cmd b/build_files/build_environment/windows/buildall.cmd
new file mode 100644
index 00000000000..480be8cde44
--- /dev/null
+++ b/build_files/build_environment/windows/buildall.cmd
@@ -0,0 +1,10 @@
+title building 1_4 - x86_2013
+call build_deps 2013 x86
+title building 2_4 - x86_2015
+call build_deps 2015 x86
+title building 3_4 - x64_2013
+call build_deps 2013 x64
+title building 4_4 - x64_2015
+call build_deps 2015 x64
+title done!
+echo done!
\ No newline at end of file
diff --git a/build_files/build_environment/windows/nuke.cmd b/build_files/build_environment/windows/nuke.cmd
new file mode 100644
index 00000000000..68dbc8d1487
--- /dev/null
+++ b/build_files/build_environment/windows/nuke.cmd
@@ -0,0 +1,52 @@
+@echo off
+if "%1"=="" goto EOF:
+set ROOT=%~dp0\..\..\..\..\build_windows\deps
+
+set CurPath=%ROOT%\s\vs1264D\debug\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\s\vs1264D\build\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\s\vs1264R\release\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\s\vs1264R\build\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\output\win64_vc12\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+
+set CurPath=%ROOT%\s\vs1464D\debug\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\s\vs1464D\build\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\s\vs1464R\release\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\s\vs1464R\build\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\output\win64_vc14\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+
+set CurPath=%ROOT%\s\vs1286D\debug\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\s\vs1286D\build\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\s\vs1286R\release\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\s\vs1286R\build\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\output\windows_vc12\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+
+set CurPath=%ROOT%\s\vs1486D\debug\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\s\vs1486D\build\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\s\vs1486R\release\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\s\vs1486R\build\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+set CurPath=%ROOT%\output\windows_vc14\%1\
+if EXIST %CurPath%\nul ( echo removing "%CurPath%" && rd /s /q "%CurPath%" ) 
+
+
+:EOF
+
+
diff --git a/build_files/buildbot/config/blender_linux.cmake b/build_files/buildbot/config/blender_linux.cmake
index 56f18967300..95265754d74 100644
--- a/build_files/buildbot/config/blender_linux.cmake
+++ b/build_files/buildbot/config/blender_linux.cmake
@@ -70,7 +70,7 @@ set(FFMPEG_LIBRARIES
 )
 
 # SndFile libraries
-set(SNDFILE_LIBRARY          "/usr/lib/libsndfile.a;/usr/lib/libFLAC.a" CACHE STRING "" FORCE)
+set(SNDFILE_LIBRARY          "/usr/lib${MULTILIB}/libsndfile.a;/usr/lib${MULTILIB}/libFLAC.a" CACHE STRING "" FORCE)
 
 # OpenAL libraries
 set(OPENAL_ROOT_DIR           "/opt/lib/openal" CACHE STRING "" FORCE)
diff --git a/build_files/buildbot/master.cfg b/build_files/buildbot/master.cfg
index c650cb8c302..c721d5a4ba9 100644
--- a/build_files/buildbot/master.cfg
+++ b/build_files/buildbot/master.cfg
@@ -246,8 +246,6 @@ def git_submodules_update():
 
 def lib_svn_step(dir):
     name = "lib svn"
-    if dir == "darwin":
-        name = "C++11 lib svn"
     return SVN(name=name,
                baseURL='https://svn.blender.org/svnroot/bf-blender/%%BRANCH%%/lib/' + dir,
                codebase='lib svn',
@@ -277,9 +275,6 @@ def generic_builder(id, libdir='', branch='', rsync=False):
     f = BuildFactory()
     if libdir != '':
         f.addStep(lib_svn_step(libdir))
-        # Special trick to make sure we always have all the libs.
-        if libdir.startswith("darwin"):
-            f.addStep(lib_svn_step("darwin"))
 
     for submodule in ('blender-translations',
                       'blender-addons',
@@ -312,15 +307,13 @@ def generic_builder(id, libdir='', branch='', rsync=False):
 
 # Builders
 
-add_builder(c, 'mac_x86_64_10_6_cmake', 'darwin-9.x.universal', generic_builder, hour=5)
-# add_builder(c, 'linux_glibc211_i686_cmake', '', generic_builder, hour=1)
-# add_builder(c, 'linux_glibc211_x86_64_cmake', '', generic_builder, hour=2)
-add_builder(c, 'linux_glibc219_i686_cmake', '', generic_builder, hour=3)
-add_builder(c, 'linux_glibc219_x86_64_cmake', '', generic_builder, hour=4)
-add_builder(c, 'win32_cmake_vc2013', 'windows_vc12', generic_builder, hour=3)
-add_builder(c, 'win64_cmake_vc2013', 'win64_vc12', generic_builder, hour=4)
-add_builder(c, 'win32_cmake_vc2015', 'windows_vc14', generic_builder, hour=5)
-add_builder(c, 'win64_cmake_vc2015', 'win64_vc14', generic_builder, hour=6)
+add_builder(c, 'mac_x86_64_10_6_cmake', 'darwin', generic_builder, hour=1)
+add_builder(c, 'linux_glibc219_i686_cmake', '', generic_builder, hour=2)
+add_builder(c, 'linux_glibc219_x86_64_cmake', '', generic_builder, hour=1)
+add_builder(c, 'win32_cmake_vc2013', 'windows_vc12', generic_builder, hour=1)
+add_builder(c, 'win64_cmake_vc2013', 'win64_vc12', generic_builder, hour=2)
+add_builder(c, 'win32_cmake_vc2015', 'windows_vc14', generic_builder, hour=3)
+add_builder(c, 'win64_cmake_vc2015', 'win64_vc14', generic_builder, hour=4)
 
 # STATUS TARGETS
 #
diff --git a/build_files/buildbot/slave_compile.py b/build_files/buildbot/slave_compile.py
index 0e264a752d5..84f924b2dd9 100644
--- a/build_files/buildbot/slave_compile.py
+++ b/build_files/buildbot/slave_compile.py
@@ -72,7 +72,6 @@ if 'cmake' in builder:
         # Set up OSX architecture
         if builder.endswith('x86_64_10_6_cmake'):
             cmake_extra_options.append('-DCMAKE_OSX_ARCHITECTURES:STRING=x86_64')
-        cmake_extra_options.append('-DWITH_CODEC_QUICKTIME=OFF')
         cmake_extra_options.append('-DCMAKE_OSX_DEPLOYMENT_TARGET=10.6')
         cmake_extra_options.append('-DCUDA_HOST_COMPILER=/usr/local/cuda-hack/clang')
         cmake_extra_options.append('-DCUDA_NVCC_EXECUTABLE=/usr/local/cuda-hack/nvcc')
@@ -112,8 +111,8 @@ if 'cmake' in builder:
             chroot_name = 'buildbot_' + deb_name + '_i686'
             cuda_chroot_name = 'buildbot_' + deb_name + '_x86_64'
             targets = ['player', 'blender', 'cuda']
-        cmake_extra_options.extend(["-DCMAKE_C_COMPILER=/usr/bin/gcc-6",
-                                    "-DCMAKE_CXX_COMPILER=/usr/bin/g++-6"])
+        cmake_extra_options.extend(["-DCMAKE_C_COMPILER=/usr/bin/gcc-7",
+                                    "-DCMAKE_CXX_COMPILER=/usr/bin/g++-7"])
 
     cmake_options.append("-C" + os.path.join(blender_dir, cmake_config_file))
 
diff --git a/build_files/cmake/cmake_consistency_check.py b/build_files/cmake/cmake_consistency_check.py
index 3d06790758a..443657532de 100755
--- a/build_files/cmake/cmake_consistency_check.py
+++ b/build_files/cmake/cmake_consistency_check.py
@@ -61,10 +61,8 @@ def replace_line(f, i, text, keep_indent=True):
 
 def source_list(path, filename_check=None):
     for dirpath, dirnames, filenames in os.walk(path):
-
         # skip '.git'
-        if dirpath.startswith("."):
-            continue
+        dirnames[:] = [d for d in dirnames if not d.startswith(".")]
 
         for filename in filenames:
             if filename_check is None or filename_check(filename):
diff --git a/build_files/cmake/config/blender_full.cmake b/build_files/cmake/config/blender_full.cmake
index 62e2ce1636d..35eba1e6a41 100644
--- a/build_files/cmake/config/blender_full.cmake
+++ b/build_files/cmake/config/blender_full.cmake
@@ -66,9 +66,7 @@ elseif(WIN32)
 	set(WITH_OPENSUBDIV          ON  CACHE BOOL "" FORCE)
 elseif(APPLE)
 	set(WITH_JACK                ON  CACHE BOOL "" FORCE)
-	set(WITH_CODEC_QUICKTIME     OFF CACHE BOOL "" FORCE)
 	set(WITH_OPENSUBDIV          OFF CACHE BOOL "" FORCE)
 
 #	include("${CMAKE_CURRENT_SOURCE_DIR}/../platform/platform_apple_xcode.cmake")
-#	apple_check_quicktime()
 endif()
diff --git a/build_files/cmake/config/blender_lite.cmake b/build_files/cmake/config/blender_lite.cmake
index 537134eb357..98818d4ab50 100644
--- a/build_files/cmake/config/blender_lite.cmake
+++ b/build_files/cmake/config/blender_lite.cmake
@@ -56,7 +56,3 @@ set(WITH_SDL                 OFF CACHE BOOL "" FORCE)
 set(WITH_X11_XINPUT          OFF CACHE BOOL "" FORCE)
 set(WITH_X11_XF86VMODE       OFF CACHE BOOL "" FORCE)
 
-if(APPLE)
-	set(WITH_CODEC_QUICKTIME     OFF CACHE BOOL "" FORCE)
-endif()
-
diff --git a/build_files/cmake/config/blender_release.cmake b/build_files/cmake/config/blender_release.cmake
index 3e2e26e6a44..3cdbfdfcf3b 100644
--- a/build_files/cmake/config/blender_release.cmake
+++ b/build_files/cmake/config/blender_release.cmake
@@ -67,9 +67,7 @@ elseif(WIN32)
 	set(WITH_OPENSUBDIV          ON  CACHE BOOL "" FORCE)
 elseif(APPLE)
 	set(WITH_JACK                ON  CACHE BOOL "" FORCE)
-	set(WITH_CODEC_QUICKTIME     OFF CACHE BOOL "" FORCE)
 	set(WITH_OPENSUBDIV          OFF CACHE BOOL "" FORCE)
 
 #	include("${CMAKE_CURRENT_SOURCE_DIR}/../platform/platform_apple_xcode.cmake")
-#	apple_check_quicktime()
 endif()
diff --git a/build_files/cmake/macros.cmake b/build_files/cmake/macros.cmake
index 6303119773d..06f47b9402b 100644
--- a/build_files/cmake/macros.cmake
+++ b/build_files/cmake/macros.cmake
@@ -403,9 +403,6 @@ function(setup_liblinks
 	if(WITH_SDL AND NOT WITH_SDL_DYNLOAD)
 		target_link_libraries(${target} ${SDL_LIBRARY})
 	endif()
-	if(WITH_CODEC_QUICKTIME)
-		target_link_libraries(${target} ${QUICKTIME_LIBRARIES})
-	endif()
 	if(WITH_IMAGE_TIFF)
 		target_link_libraries(${target} ${TIFF_LIBRARY})
 	endif()
@@ -715,10 +712,6 @@ function(SETUP_BLENDER_SORTED_LIBS)
 		list(APPEND BLENDER_SORTED_LIBS bf_intern_itasc)
 	endif()
 
-	if(WITH_CODEC_QUICKTIME)
-		list(APPEND BLENDER_SORTED_LIBS bf_quicktime)
-	endif()
-
 	if(WITH_MOD_BOOLEAN)
 		list(APPEND BLENDER_SORTED_LIBS extern_carve)
 	endif()
diff --git a/build_files/cmake/platform/platform_apple.cmake b/build_files/cmake/platform/platform_apple.cmake
index 6105f2e04de..a08f94e5ec0 100644
--- a/build_files/cmake/platform/platform_apple.cmake
+++ b/build_files/cmake/platform/platform_apple.cmake
@@ -28,11 +28,7 @@ macro(find_package_wrapper)
 endmacro()
 
 if(NOT DEFINED LIBDIR)
-	if(WITH_CXX11)
-		set(LIBDIR ${CMAKE_SOURCE_DIR}/../lib/darwin)
-	else()
-		set(LIBDIR ${CMAKE_SOURCE_DIR}/../lib/darwin-9.x.universal)
-	endif()
+	set(LIBDIR ${CMAKE_SOURCE_DIR}/../lib/darwin)
 else()
 	message(STATUS "Using pre-compiled LIBDIR: ${LIBDIR}")
 endif()
@@ -88,12 +84,12 @@ endif()
 
 if(WITH_PYTHON)
 	# we use precompiled libraries for py 3.5 and up by default
-	set(PYTHON_VERSION 3.5)
+	set(PYTHON_VERSION 3.6)
 	if(NOT WITH_PYTHON_MODULE AND NOT WITH_PYTHON_FRAMEWORK)
 		# normally cached but not since we include them with blender
 		set(PYTHON_INCLUDE_DIR "${LIBDIR}/python/include/python${PYTHON_VERSION}m")
 		set(PYTHON_EXECUTABLE "${LIBDIR}/python/bin/python${PYTHON_VERSION}m")
-		set(PYTHON_LIBRARY python${PYTHON_VERSION}m)
+		set(PYTHON_LIBRARY ${LIBDIR}/python/lib/libpython${PYTHON_VERSION}m.a)
 		set(PYTHON_LIBPATH "${LIBDIR}/python/lib/python${PYTHON_VERSION}")
 		# set(PYTHON_LINKFLAGS "-u _PyMac_Error")  # won't  build with this enabled
 	else()
@@ -113,6 +109,9 @@ if(WITH_PYTHON)
 	set(PYTHON_INCLUDE_DIRS "${PYTHON_INCLUDE_DIR}")
 	set(PYTHON_LIBRARIES  "${PYTHON_LIBRARY}")
 
+	# needed for Audaspace, numpy is installed into python site-packages
+	set(NUMPY_INCLUDE_DIRS "${PYTHON_LIBPATH}/site-packages/numpy/core/include")
+
 	if(NOT EXISTS "${PYTHON_EXECUTABLE}")
 		message(FATAL_ERROR "Python executable missing: ${PYTHON_EXECUTABLE}")
 	endif()
@@ -141,11 +140,7 @@ if(WITH_IMAGE_OPENEXR)
 	set(OPENEXR ${LIBDIR}/openexr)
 	set(OPENEXR_INCLUDE_DIR ${OPENEXR}/include)
 	set(OPENEXR_INCLUDE_DIRS ${OPENEXR_INCLUDE_DIR} ${OPENEXR}/include/OpenEXR)
-	if(WITH_CXX11)
-		set(OPENEXR_POSTFIX -2_2)
-	else()
-		set(OPENEXR_POSTFIX)
-	endif()
+	set(OPENEXR_POSTFIX -2_2)
 	set(OPENEXR_LIBRARIES
 		Iex${OPENEXR_POSTFIX}
 		Half
@@ -162,20 +157,16 @@ if(WITH_CODEC_FFMPEG)
 		avcodec avdevice avformat avutil
 		mp3lame swscale x264 xvidcore theora theoradec theoraenc vorbis vorbisenc vorbisfile ogg
 	)
-	if(WITH_CXX11)
-		set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} schroedinger orc vpx webp swresample)
-	endif()
+	set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} schroedinger orc vpx webp swresample)
 	set(FFMPEG_LIBPATH ${FFMPEG}/lib)
 endif()
 
 if(WITH_OPENJPEG OR WITH_CODEC_FFMPEG)
 	# use openjpeg from libdir that is linked into ffmpeg
-	if(WITH_CXX11)
-		set(OPENJPEG ${LIBDIR}/openjpeg)
-		set(WITH_SYSTEM_OPENJPEG ON)
-		set(OPENJPEG_INCLUDE_DIRS ${OPENJPEG}/include)
-		set(OPENJPEG_LIBRARIES ${OPENJPEG}/lib/libopenjpeg.a)
-	endif()
+	set(OPENJPEG ${LIBDIR}/openjpeg)
+	set(WITH_SYSTEM_OPENJPEG ON)
+	set(OPENJPEG_INCLUDE_DIRS ${OPENJPEG}/include)
+	set(OPENJPEG_LIBRARIES ${OPENJPEG}/lib/libopenjpeg.a)
 endif()
 
 find_library(SYSTEMSTUBS_LIBRARY
@@ -192,19 +183,8 @@ set(PLATFORM_CFLAGS "-pipe -funsigned-char")
 set(PLATFORM_LINKFLAGS
 	"-fexceptions -framework CoreServices -framework Foundation -framework IOKit -framework AppKit -framework Cocoa -framework Carbon -framework AudioUnit -framework AudioToolbox -framework CoreAudio"
 )
-if(WITH_CODEC_QUICKTIME)
-	set(PLATFORM_LINKFLAGS "${PLATFORM_LINKFLAGS} -framework QTKit")
-	if(CMAKE_OSX_ARCHITECTURES MATCHES i386)
-		set(PLATFORM_LINKFLAGS "${PLATFORM_LINKFLAGS} -framework QuickTime")
-		# libSDL still needs 32bit carbon quicktime
-	endif()
-endif()
 
-if(WITH_CXX11)
-	list(APPEND PLATFORM_LINKLIBS c++)
-else()
-	list(APPEND PLATFORM_LINKLIBS stdc++)
-endif()
+list(APPEND PLATFORM_LINKLIBS c++)
 
 if(WITH_JACK)
 	set(PLATFORM_LINKFLAGS "${PLATFORM_LINKFLAGS} -F/Library/Frameworks -weak_framework jackmp")
@@ -255,11 +235,7 @@ if(WITH_SDL)
 	set(SDL_INCLUDE_DIR ${SDL}/include)
 	set(SDL_LIBRARY SDL2)
 	set(SDL_LIBPATH ${SDL}/lib)
-	if(WITH_CXX11)
-		set(PLATFORM_LINKFLAGS "${PLATFORM_LINKFLAGS} -framework ForceFeedback")
-	else()
-		set(PLATFORM_LINKFLAGS "${PLATFORM_LINKFLAGS} -lazy_framework ForceFeedback")
-	endif()
+	set(PLATFORM_LINKFLAGS "${PLATFORM_LINKFLAGS} -framework ForceFeedback")
 endif()
 
 set(PNG "${LIBDIR}/png")
@@ -280,11 +256,7 @@ endif()
 if(WITH_BOOST)
 	set(BOOST ${LIBDIR}/boost)
 	set(BOOST_INCLUDE_DIR ${BOOST}/include)
-	if(WITH_CXX11)
-		set(BOOST_POSTFIX)
-	else()
-		set(BOOST_POSTFIX -mt)
-	endif()
+	set(BOOST_POSTFIX)
 	set(BOOST_LIBRARIES
 		boost_date_time${BOOST_POSTFIX}
 		boost_filesystem${BOOST_POSTFIX}
@@ -321,9 +293,7 @@ if(WITH_OPENIMAGEIO)
 		${OPENEXR_LIBRARIES}
 		${ZLIB_LIBRARIES}
 	)
-	if(WITH_CXX11)
-		set(OPENIMAGEIO_LIBRARIES ${OPENIMAGEIO_LIBRARIES} ${LIBDIR}/ffmpeg/lib/libwebp.a)
-	endif()
+	set(OPENIMAGEIO_LIBRARIES ${OPENIMAGEIO_LIBRARIES} ${LIBDIR}/ffmpeg/lib/libwebp.a)
 	set(OPENIMAGEIO_LIBPATH
 		${OPENIMAGEIO}/lib
 		${JPEG_LIBPATH}
@@ -461,10 +431,8 @@ set(PLATFORM_LINKFLAGS
 	"${PLATFORM_LINKFLAGS} -Xlinker -unexported_symbols_list -Xlinker ${CMAKE_SOURCE_DIR}/source/creator/osx_locals.map"
 )
 
-if(WITH_CXX11)
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
-	set(PLATFORM_LINKFLAGS "${PLATFORM_LINKFLAGS} -stdlib=libc++")
-endif()
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
+set(PLATFORM_LINKFLAGS "${PLATFORM_LINKFLAGS} -stdlib=libc++")
 
 # Suppress ranlib "has no symbols" warnings (workaround for T48250)
 set(CMAKE_C_ARCHIVE_CREATE   "<CMAKE_AR> Scr <TARGET> <LINK_FLAGS> <OBJECTS>")
diff --git a/build_files/cmake/platform/platform_apple_xcode.cmake b/build_files/cmake/platform/platform_apple_xcode.cmake
index e76a7783939..8bb08b5a29f 100644
--- a/build_files/cmake/platform/platform_apple_xcode.cmake
+++ b/build_files/cmake/platform/platform_apple_xcode.cmake
@@ -101,21 +101,14 @@ if(OSX_SYSTEM MATCHES 10.9)
 	set(CMAKE_FIND_ROOT_PATH ${CMAKE_OSX_SYSROOT})
 endif()
 
-if(WITH_CXX11)
-	# 10.9 is our min. target, if you use higher sdk, weak linking happens
-	if(CMAKE_OSX_DEPLOYMENT_TARGET)
-		if(${CMAKE_OSX_DEPLOYMENT_TARGET} VERSION_LESS 10.9)
-			message(STATUS "Setting deployment target to 10.9, lower versions are incompatible with WITH_CXX11")
-			set(CMAKE_OSX_DEPLOYMENT_TARGET "10.9" CACHE STRING "" FORCE)
-		endif()
-	else()
+# 10.9 is our min. target, if you use higher sdk, weak linking happens
+if(CMAKE_OSX_DEPLOYMENT_TARGET)
+	if(${CMAKE_OSX_DEPLOYMENT_TARGET} VERSION_LESS 10.9)
+		message(STATUS "Setting deployment target to 10.9, lower versions are incompatible with WITH_CXX11")
 		set(CMAKE_OSX_DEPLOYMENT_TARGET "10.9" CACHE STRING "" FORCE)
 	endif()
 else()
-	if(NOT CMAKE_OSX_DEPLOYMENT_TARGET)
-		# 10.6 is our min. target, if you use higher sdk, weak linking happens
-		set(CMAKE_OSX_DEPLOYMENT_TARGET "10.6" CACHE STRING "" FORCE)
-	endif()
+	set(CMAKE_OSX_DEPLOYMENT_TARGET "10.9" CACHE STRING "" FORCE)
 endif()
 
 if(NOT ${CMAKE_GENERATOR} MATCHES "Xcode")
@@ -124,12 +117,3 @@ if(NOT ${CMAKE_GENERATOR} MATCHES "Xcode")
 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=${CMAKE_OSX_DEPLOYMENT_TARGET}")
 	add_definitions("-DMACOSX_DEPLOYMENT_TARGET=${CMAKE_OSX_DEPLOYMENT_TARGET}")
 endif()
-
-macro(apple_check_quicktime)
-	# QuickTime framework is no longer available in SDK 10.12+
-	if(WITH_CODEC_QUICKTIME AND ${OSX_SYSTEM} VERSION_GREATER 10.11)
-		set(WITH_CODEC_QUICKTIME OFF CACHE BOOL "" FORCE)
-		message(STATUS "QuickTime not supported by SDK ${OSX_SYSTEM}, disabling WITH_CODEC_QUICKTIME")
-	endif()
-endmacro()
-
diff --git a/build_files/cmake/platform/platform_unix.cmake b/build_files/cmake/platform/platform_unix.cmake
index 62e0caa7c43..5eefc40e8f4 100644
--- a/build_files/cmake/platform/platform_unix.cmake
+++ b/build_files/cmake/platform/platform_unix.cmake
@@ -400,10 +400,6 @@ if(CMAKE_COMPILER_IS_GNUCC)
 # CLang is the same as GCC for now.
 elseif(CMAKE_C_COMPILER_ID MATCHES "Clang")
 	set(PLATFORM_CFLAGS "-pipe -fPIC -funsigned-char -fno-strict-aliasing")
-# Solaris CC
-elseif(CMAKE_C_COMPILER_ID MATCHES "SunPro")
-	set(PLATFORM_CFLAGS "-pipe -features=extensions -fPIC -D__FUNCTION__=__func__")
-
 # Intel C++ Compiler
 elseif(CMAKE_C_COMPILER_ID MATCHES "Intel")
 	# think these next two are broken
diff --git a/build_files/cmake/platform/platform_win32_msvc.cmake b/build_files/cmake/platform/platform_win32_msvc.cmake
index 3b417f79cbe..47dd0edc8ba 100644
--- a/build_files/cmake/platform/platform_win32_msvc.cmake
+++ b/build_files/cmake/platform/platform_win32_msvc.cmake
@@ -134,7 +134,10 @@ if(NOT DEFINED LIBDIR)
 		message(STATUS "32 bit compiler detected.")
 		set(LIBDIR_BASE "windows")
 	endif()
-	if(MSVC_VERSION EQUAL 1910)
+	if(MSVC_VERSION EQUAL 1911)
+		message(STATUS "Visual Studio 2017 detected.")
+		set(LIBDIR ${CMAKE_SOURCE_DIR}/../lib/${LIBDIR_BASE}_vc14)
+	elseif(MSVC_VERSION EQUAL 1910)
 		message(STATUS "Visual Studio 2017 detected.")
 		set(LIBDIR ${CMAKE_SOURCE_DIR}/../lib/${LIBDIR_BASE}_vc14)
 	elseif(MSVC_VERSION EQUAL 1900)
@@ -299,7 +302,7 @@ if(WITH_JACK)
 endif()
 
 if(WITH_PYTHON)
-	set(PYTHON_VERSION 3.5) # CACHE STRING)
+	set(PYTHON_VERSION 3.6) # CACHE STRING)
 
 	string(REPLACE "." "" _PYTHON_VERSION_NO_DOTS ${PYTHON_VERSION})
 	# Use shared libs for vc2008 and vc2010 until we actually have vc2010 libs
diff --git a/build_files/cmake/project_info.py b/build_files/cmake/project_info.py
index 3ac4c4c9480..9b0905da030 100755
--- a/build_files/cmake/project_info.py
+++ b/build_files/cmake/project_info.py
@@ -84,10 +84,8 @@ def init(cmake_path):
 
 def source_list(path, filename_check=None):
     for dirpath, dirnames, filenames in os.walk(path):
-
-        # skip '.svn'
-        if dirpath.startswith("."):
-            continue
+        # skip '.git'
+        dirnames[:] = [d for d in dirnames if not d.startswith(".")]
 
         for filename in filenames:
             filepath = join(dirpath, filename)
diff --git a/build_files/utils/build_tgz.sh b/build_files/utils/build_tgz.sh
index 865df277605..c568d17db1c 100755
--- a/build_files/utils/build_tgz.sh
+++ b/build_files/utils/build_tgz.sh
@@ -53,7 +53,11 @@ echo "OK"
 # Create the tarball
 cd "$blender_srcdir"
 echo -n "Creating archive:            \"$BASE_DIR/$TARBALL\" ..."
-GZIP=-9 tar --transform "s,^,blender-$VERSION/,g" -zcf "$BASE_DIR/$TARBALL" -T "$BASE_DIR/$MANIFEST"
+tar --transform "s,^,blender-$VERSION/,g" \
+	--use-compress-program="gzip --best" \
+	--create \
+	--file="$BASE_DIR/$TARBALL" \
+	--files-from="$BASE_DIR/$MANIFEST"
 echo "OK"
 
 
diff --git a/doc/doxygen/Doxyfile b/doc/doxygen/Doxyfile
index 8b3a97816ba..a3ccf9227d3 100644
--- a/doc/doxygen/Doxyfile
+++ b/doc/doxygen/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = Blender
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = "V2.8x"
+PROJECT_NUMBER         = "V2.79"
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/doc/doxygen/doxygen.source.h b/doc/doxygen/doxygen.source.h
index 3ef20466664..67e231212c7 100644
--- a/doc/doxygen/doxygen.source.h
+++ b/doc/doxygen/doxygen.source.h
@@ -160,9 +160,6 @@
  *   merged in docs.
  */
 
-/** \defgroup quicktime QuickTime
- *  \ingroup blender
-
 /** \defgroup gui GUI */
 
 /** \defgroup wm Window Manager
diff --git a/doc/python_api/rst/bge_types/bge.types.BL_ShapeActionActuator.rst b/doc/python_api/rst/bge_types/bge.types.BL_ShapeActionActuator.rst
index d08a761ed95..4bb3d273cb9 100644
--- a/doc/python_api/rst/bge_types/bge.types.BL_ShapeActionActuator.rst
+++ b/doc/python_api/rst/bge_types/bge.types.BL_ShapeActionActuator.rst
@@ -59,7 +59,7 @@ base class --- :class:`SCA_IActuator`
 
    .. attribute:: mode
 
-      The operation mode of the actuator. Can be one of :ref:`these constants<shape-action-actuator>`.
+      The operation mode of the actuator. Can be one of :ref:`these constants<action-actuator>`.
 
       :type: integer
 
@@ -68,5 +68,3 @@ base class --- :class:`SCA_IActuator`
       The name of the property that is set to the current frame number.
 
       :type: string
-
-
diff --git a/doc/python_api/rst/change_log.rst b/doc/python_api/rst/change_log.rst
index 5a3bf2a6d8d..21c7cf96135 100644
--- a/doc/python_api/rst/change_log.rst
+++ b/doc/python_api/rst/change_log.rst
@@ -1,3 +1,5 @@
+:tocdepth: 2
+
 Blender API Change Log
 **********************
 
@@ -5648,3 +5650,5652 @@ Added
 
 * :class:`bpy.types.SceneRenderLayer.freestyle_settings`
 * :class:`bpy.types.SceneRenderLayer.use_freestyle`
+
+2.67 to 2.68
+============
+
+bpy.types.BlendDataTexts
+------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataTexts.load` (filepath, internal), *was (filepath)*
+
+bpy.types.DopeSheet
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.DopeSheet.show_modifiers`
+
+bpy.types.Armature
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Armature.is_editmode`
+
+bpy.types.Curve
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Curve.is_editmode`
+
+bpy.types.Lattice
+-----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Lattice.is_editmode`
+
+bpy.types.Mesh
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Mesh.calc_smooth_groups`
+* :class:`bpy.types.Mesh.is_editmode`
+
+bpy.types.MetaBall
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MetaBall.is_editmode`
+
+bpy.types.ParticleSettings
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ParticleSettings.use_modifier_stack`
+
+bpy.types.WindowManager
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.WindowManager.popup_menu`
+* :class:`bpy.types.WindowManager.pupmenu_begin__internal`
+* :class:`bpy.types.WindowManager.pupmenu_end__internal`
+
+bpy.types.World
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.World.cycles_visibility`
+
+bpy.types.MaskSpline
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MaskSpline.points`
+
+bpy.types.MaskSplines
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MaskSplines.new`
+* :class:`bpy.types.MaskSplines.remove`
+
+Removed
+^^^^^^^
+
+* **add**
+
+bpy.types.MeshPolygon
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MeshPolygon.center`
+
+bpy.types.DecimateModifier
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.DecimateModifier.delimit`
+
+bpy.types.MovieTrackingSettings
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MovieTrackingSettings.use_keyframe_selection`
+
+bpy.types.Node
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Node.dimensions`
+
+bpy.types.NodeSocket
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.NodeSocket.hide_value`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.NodeSocket.draw` (context, layout, node, text), *was (context, layout, node)*
+
+bpy.types.NodeSocketStandard
+----------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.NodeSocketStandard.draw` (context, layout, node, text), *was (context, layout, node)*
+
+bpy.types.NodeSocketInterfaceStandard
+-------------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.NodeSocketInterfaceStandard.type`
+
+bpy.types.NodeTreeInputs
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.NodeTreeInputs.move`
+
+bpy.types.NodeTreeOutputs
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.NodeTreeOutputs.move`
+
+bpy.types.CyclesMaterialSettings
+--------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesMaterialSettings.use_transparent_shadow`
+
+bpy.types.CyclesRenderSettings
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesRenderSettings.sampling_pattern`
+
+bpy.types.RenderEngine
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderEngine.bl_use_exclude_layers`
+* :class:`bpy.types.RenderEngine.bl_use_save_buffers`
+
+bpy.types.SmokeDomainSettings
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SmokeDomainSettings.highres_sampling`
+
+Removed
+^^^^^^^
+
+* **use_smooth_emitter**
+
+bpy.types.SmokeFlowSettings
+---------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SmokeFlowSettings.particle_size`
+* :class:`bpy.types.SmokeFlowSettings.subframes`
+* :class:`bpy.types.SmokeFlowSettings.use_particle_size`
+
+bpy.types.SpaceProperties
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceProperties.use_limited_texture_context`
+
+bpy.types.SpaceView3D
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceView3D.transform_manipulators`
+
+Removed
+^^^^^^^
+
+* **use_manipulator_rotate**
+* **use_manipulator_scale**
+* **use_manipulator_translate**
+
+bpy.types.ThemeFontStyle
+------------------------
+
+Renamed
+^^^^^^^
+
+* **shadowalpha** -> :class:`bpy.types.ThemeFontStyle.shadow_alpha`
+* **shadowcolor** -> :class:`bpy.types.ThemeFontStyle.shadow_value`
+
+bpy.types.ThemeView3D
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeView3D.wire_edit`
+
+bpy.types.ToolSettings
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ToolSettings.vertex_group_subset`
+
+bpy.types.UserPreferences
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferences.autoexec_paths`
+
+2.68 to 2.69
+============
+
+bpy.types.ActionActuator
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ActionActuator.blend_mode`
+
+bpy.types.ColorManagedViewSettings
+----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ColorManagedViewSettings.look`
+
+bpy.types.ShrinkwrapConstraint
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShrinkwrapConstraint.project_axis`
+* :class:`bpy.types.ShrinkwrapConstraint.project_axis_space`
+* :class:`bpy.types.ShrinkwrapConstraint.project_limit`
+
+Removed
+^^^^^^^
+
+* **use_x**
+* **use_y**
+* **use_z**
+
+bpy.types.CurveMapping
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CurveMapping.initialize`
+
+bpy.types.DynamicPaintSurface
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.DynamicPaintSurface.wave_smoothness`
+
+bpy.types.Mesh
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Mesh.calc_normals_split`
+* :class:`bpy.types.Mesh.free_normals_split`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.Mesh.calc_smooth_groups` (use_bitflags), *was ()*
+
+bpy.types.Scene
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Scene.frame_current_final`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.Scene.collada_export` (filepath, apply_modifiers, export_mesh_type, selected, include_children, include_armatures, include_shapekeys, deform_bones_only, active_uv_only, include_uv_textures, include_material_textures, use_texture_copies, use_ngons, use_object_instantiation, sort_by_name, open_sim, export_transformation_type), *was (filepath, apply_modifiers, export_mesh_type, selected, include_children, include_armatures, include_shapekeys, deform_bones_only, active_uv_only, include_uv_textures, include_material_textures, use_texture_copies, use_ngons, use_object_instantiation, sort_by_name, second_life, export_transformation_type)*
+
+bpy.types.Text
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Text.current_line_index`
+
+bpy.types.IDMaterials
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.IDMaterials.clear`
+
+bpy.types.KeyMaps
+-----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.KeyMaps.remove`
+
+bpy.types.MaskParent
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MaskParent.type`
+
+bpy.types.MeshLoop
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MeshLoop.normal`
+
+bpy.types.SimpleDeformModifier
+------------------------------
+
+Removed
+^^^^^^^
+
+* **use_relative**
+
+bpy.types.MovieTracking
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MovieTracking.plane_tracks`
+
+bpy.types.MovieTrackingObject
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MovieTrackingObject.plane_tracks`
+
+bpy.types.ShaderNodeMapping
+---------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShaderNodeMapping.vector_type`
+
+bpy.types.ShaderNodeSubsurfaceScattering
+----------------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShaderNodeSubsurfaceScattering.falloff`
+
+bpy.types.ShaderNodeTexSky
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShaderNodeTexSky.ground_albedo`
+* :class:`bpy.types.ShaderNodeTexSky.sky_type`
+
+bpy.types.ParticleSystem
+------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.ParticleSystem.co_hair` (object, particle_no, step), *was (object, modifier, particle_no, step)*
+
+bpy.types.Property
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Property.is_argument_optional`
+
+bpy.types.CyclesCurveRenderSettings
+-----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesCurveRenderSettings.cull_backfacing`
+* :class:`bpy.types.CyclesCurveRenderSettings.shape`
+
+Removed
+^^^^^^^
+
+* **encasing_ratio**
+* **interpolation**
+* **line_method**
+* **normalmix**
+* **preset**
+* **segments**
+* **triangle_method**
+* **use_backfacing**
+* **use_encasing**
+* **use_joined**
+* **use_parents**
+* **use_smooth**
+* **use_tangent_normal**
+* **use_tangent_normal_correction**
+* **use_tangent_normal_geometry**
+
+bpy.types.CyclesRenderSettings
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesRenderSettings.use_square_samples`
+
+bpy.types.RenderEngine
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderEngine.bind_display_space_shader`
+* :class:`bpy.types.RenderEngine.support_display_space_shader`
+* :class:`bpy.types.RenderEngine.unbind_display_space_shader`
+
+bpy.types.RenderLayer
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderLayer.use_pass_subsurface_color`
+* :class:`bpy.types.RenderLayer.use_pass_subsurface_direct`
+* :class:`bpy.types.RenderLayer.use_pass_subsurface_indirect`
+
+bpy.types.SceneGameData
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SceneGameData.vsync`
+
+bpy.types.SceneRenderLayer
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SceneRenderLayer.use_pass_subsurface_color`
+* :class:`bpy.types.SceneRenderLayer.use_pass_subsurface_direct`
+* :class:`bpy.types.SceneRenderLayer.use_pass_subsurface_indirect`
+
+bpy.types.SpaceNodeEditor
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceNodeEditor.cursor_location_from_region`
+
+bpy.types.SpaceTextEditor
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceTextEditor.top`
+* :class:`bpy.types.SpaceTextEditor.visible_lines`
+
+bpy.types.SpaceView3D
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceView3D.show_occlude_wire`
+
+bpy.types.TexMapping
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.TexMapping.vector_type`
+
+bpy.types.ThemeImageEditor
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeImageEditor.uv_others`
+* :class:`bpy.types.ThemeImageEditor.uv_shadow`
+
+bpy.types.UILayout
+------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.UILayout.template_list` (listtype_name, list_id, dataptr, propname, active_dataptr, active_propname, rows, maxrows, type, columns), *was (listtype_name, list_id, dataptr, propname, active_dataptr, active_propname, rows, maxrows, type)*
+
+bpy.types.UIList
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UIList.bitflag_filter_item`
+* :class:`bpy.types.UIList.draw_filter`
+* :class:`bpy.types.UIList.filter_items`
+* :class:`bpy.types.UIList.filter_name`
+* :class:`bpy.types.UIList.use_filter_invert`
+* :class:`bpy.types.UIList.use_filter_show`
+* :class:`bpy.types.UIList.use_filter_sort_alpha`
+* :class:`bpy.types.UIList.use_filter_sort_reverse`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.UIList.draw_item` (context, layout, data, item, icon, active_data, active_property, index, flt_flag), *was (context, layout, data, item, icon, active_data, active_property, index)*
+
+bpy.types.UI_UL_list
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UI_UL_list.filter_items_by_name`
+* :class:`bpy.types.UI_UL_list.sort_items_by_name`
+* :class:`bpy.types.UI_UL_list.sort_items_helper`
+
+bpy.types.Window
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Window.cursor_modal_restore`
+* :class:`bpy.types.Window.cursor_modal_set`
+* :class:`bpy.types.Window.cursor_set`
+* :class:`bpy.types.Window.cursor_warp`
+
+2.69 to 2.70
+============
+
+bpy.types.BlendData
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BlendData.use_autopack`
+
+bpy.types.ClothSettings
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ClothSettings.sewing_force_max`
+* :class:`bpy.types.ClothSettings.shrink_max`
+* :class:`bpy.types.ClothSettings.shrink_min`
+* :class:`bpy.types.ClothSettings.use_sewing_springs`
+* :class:`bpy.types.ClothSettings.vertex_group_shrink`
+
+bpy.types.DupliObject
+---------------------
+
+Removed
+^^^^^^^
+
+* **matrix_original**
+
+bpy.types.FCurve
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FCurve.update_autoflags`
+
+bpy.types.FModifierNoise
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FModifierNoise.offset`
+
+bpy.types.FreestyleSettings
+---------------------------
+
+Removed
+^^^^^^^
+
+* **raycasting_algorithm**
+
+bpy.types.GameObjectSettings
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GameObjectSettings.use_record_animation`
+
+bpy.types.Armature
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Armature.transform`
+
+bpy.types.Brush
+---------------
+
+Renamed
+^^^^^^^
+
+* **use_restore_mesh** -> :class:`bpy.types.Brush.use_drag_dot`
+
+bpy.types.Curve
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Curve.transform`
+
+Removed
+^^^^^^^
+
+* **use_time_offset**
+
+bpy.types.Image
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Image.filepath_from_user`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.Image.gl_load` (frame, filter, mag), *was (filter, mag)*
+* :class:`bpy.types.Image.gl_touch` (frame, filter, mag), *was (filter, mag)*
+
+bpy.types.Lattice
+-----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Lattice.transform`
+
+bpy.types.Mesh
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Mesh.calc_tangents`
+* :class:`bpy.types.Mesh.free_tangents`
+
+bpy.types.Object
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Object.image_user`
+* :class:`bpy.types.Object.lod_levels`
+
+bpy.types.ParticleSettings
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ParticleSettings.material_slot`
+
+bpy.types.Scene
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Scene.lock_frame_selection_to_range`
+
+bpy.types.Texture
+-----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Texture.use_clamp`
+
+bpy.types.World
+---------------
+
+Removed
+^^^^^^^
+
+* **star_settings**
+
+bpy.types.MaskLayer
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MaskLayer.use_fill_holes`
+* :class:`bpy.types.MaskLayer.use_fill_overlap`
+
+bpy.types.Menu
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Menu.draw_collapsible`
+
+bpy.types.MeshLoop
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MeshLoop.bitangent`
+* :class:`bpy.types.MeshLoop.bitangent_sign`
+* :class:`bpy.types.MeshLoop.tangent`
+
+bpy.types.BevelModifier
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BevelModifier.offset_type`
+* :class:`bpy.types.BevelModifier.profile`
+
+bpy.types.BuildModifier
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BuildModifier.use_reverse`
+
+bpy.types.ScrewModifier
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ScrewModifier.use_stretch_u`
+* :class:`bpy.types.ScrewModifier.use_stretch_v`
+
+bpy.types.TriangulateModifier
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.TriangulateModifier.ngon_method`
+* :class:`bpy.types.TriangulateModifier.quad_method`
+
+Removed
+^^^^^^^
+
+* **use_beauty**
+
+bpy.types.MovieTrackingMarker
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MovieTrackingMarker.is_keyed`
+
+bpy.types.MovieTrackingPlaneTrack
+---------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MovieTrackingPlaneTrack.image`
+* :class:`bpy.types.MovieTrackingPlaneTrack.image_opacity`
+
+bpy.types.MovieTrackingSettings
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MovieTrackingSettings.default_weight`
+* :class:`bpy.types.MovieTrackingSettings.show_extra_expanded`
+
+Removed
+^^^^^^^
+
+* **reconstruction_success_threshold**
+* **use_fallback_reconstruction**
+
+bpy.types.MovieTrackingTrack
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MovieTrackingTrack.offset`
+* :class:`bpy.types.MovieTrackingTrack.weight`
+
+bpy.types.Node
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Node.draw_label`
+
+bpy.types.CompositorNodeDefocus
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CompositorNodeDefocus.scene`
+
+bpy.types.CompositorNodeDespeckle
+---------------------------------
+
+Renamed
+^^^^^^^
+
+* **threshold_neighbour** -> :class:`bpy.types.CompositorNodeDespeckle.threshold_neighbor`
+
+bpy.types.ShaderNodeOutput
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShaderNodeOutput.is_active_output`
+
+bpy.types.ShaderNodeOutputLamp
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShaderNodeOutputLamp.is_active_output`
+
+bpy.types.ShaderNodeOutputMaterial
+----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShaderNodeOutputMaterial.is_active_output`
+
+bpy.types.ShaderNodeOutputWorld
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShaderNodeOutputWorld.is_active_output`
+
+bpy.types.NodeSocket
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.NodeSocket.is_output`
+
+Removed
+^^^^^^^
+
+* **in_out**
+
+bpy.types.NodeSocketInterface
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.NodeSocketInterface.is_output`
+
+Removed
+^^^^^^^
+
+* **in_out**
+
+bpy.types.Paint
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Paint.use_symmetry_feather`
+* :class:`bpy.types.Paint.use_symmetry_x`
+* :class:`bpy.types.Paint.use_symmetry_y`
+* :class:`bpy.types.Paint.use_symmetry_z`
+
+bpy.types.Sculpt
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Sculpt.detail_refine_method`
+* :class:`bpy.types.Sculpt.gravity`
+* :class:`bpy.types.Sculpt.gravity_object`
+
+Removed
+^^^^^^^
+
+* **use_edge_collapse**
+* **use_symmetry_feather**
+* **use_symmetry_x**
+* **use_symmetry_y**
+* **use_symmetry_z**
+
+bpy.types.VertexPaint
+---------------------
+
+Removed
+^^^^^^^
+
+* **use_all_faces**
+
+bpy.types.Panel
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Panel.bl_category`
+* :class:`bpy.types.Panel.use_pin`
+
+bpy.types.CyclesRenderSettings
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesRenderSettings.sample_clamp_direct`
+* :class:`bpy.types.CyclesRenderSettings.sample_clamp_indirect`
+* :class:`bpy.types.CyclesRenderSettings.volume_bounces`
+* :class:`bpy.types.CyclesRenderSettings.volume_homogeneous_sampling`
+* :class:`bpy.types.CyclesRenderSettings.volume_max_steps`
+* :class:`bpy.types.CyclesRenderSettings.volume_samples`
+* :class:`bpy.types.CyclesRenderSettings.volume_step_size`
+
+Removed
+^^^^^^^
+
+* **sample_clamp**
+
+bpy.types.CyclesWorldSettings
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesWorldSettings.homogeneous_volume`
+
+bpy.types.RenderEngine
+----------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.RenderEngine.end_result` (result, cancel, do_merge_results), *was (result, cancel)*
+
+bpy.types.RenderSettings
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderSettings.bake_user_scale`
+* :class:`bpy.types.RenderSettings.use_bake_user_scale`
+* :class:`bpy.types.RenderSettings.use_lock_interface`
+
+bpy.types.RigidBodyObject
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RigidBodyObject.mesh_source`
+* :class:`bpy.types.RigidBodyObject.use_deform`
+
+bpy.types.SceneRenderLayer
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SceneRenderLayer.pass_alpha_threshold`
+
+bpy.types.SculptToolCapabilities
+--------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SculptToolCapabilities.has_gravity`
+
+bpy.types.SpaceClipEditor
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceClipEditor.mask_overlay_mode`
+* :class:`bpy.types.SpaceClipEditor.show_graph_tracks_error`
+* :class:`bpy.types.SpaceClipEditor.show_mask_overlay`
+
+Renamed
+^^^^^^^
+
+* **show_graph_tracks** -> :class:`bpy.types.SpaceClipEditor.show_graph_tracks_motion`
+
+bpy.types.SpaceGraphEditor
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceGraphEditor.use_auto_normalization`
+* :class:`bpy.types.SpaceGraphEditor.use_normalization`
+
+bpy.types.SpaceImageEditor
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceImageEditor.mask_overlay_mode`
+* :class:`bpy.types.SpaceImageEditor.show_mask_overlay`
+
+bpy.types.SpaceNodeEditor
+-------------------------
+
+Removed
+^^^^^^^
+
+* **use_hidden_preview**
+
+bpy.types.SpaceView3D
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceView3D.show_textured_shadeless`
+
+bpy.types.TextCharacterFormat
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.TextCharacterFormat.material_index`
+
+bpy.types.ThemeDopeSheet
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeDopeSheet.keyframe`
+* :class:`bpy.types.ThemeDopeSheet.keyframe_border`
+* :class:`bpy.types.ThemeDopeSheet.keyframe_border_selected`
+* :class:`bpy.types.ThemeDopeSheet.keyframe_breakdown`
+* :class:`bpy.types.ThemeDopeSheet.keyframe_breakdown_selected`
+* :class:`bpy.types.ThemeDopeSheet.keyframe_extreme`
+* :class:`bpy.types.ThemeDopeSheet.keyframe_extreme_selected`
+* :class:`bpy.types.ThemeDopeSheet.keyframe_jitter`
+* :class:`bpy.types.ThemeDopeSheet.keyframe_jitter_selected`
+* :class:`bpy.types.ThemeDopeSheet.keyframe_selected`
+
+bpy.types.ThemeImageEditor
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeImageEditor.edge_select`
+* :class:`bpy.types.ThemeImageEditor.wire_edit`
+
+bpy.types.ThemeInfo
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeInfo.info_debug`
+* :class:`bpy.types.ThemeInfo.info_debug_text`
+* :class:`bpy.types.ThemeInfo.info_error`
+* :class:`bpy.types.ThemeInfo.info_error_text`
+* :class:`bpy.types.ThemeInfo.info_info`
+* :class:`bpy.types.ThemeInfo.info_info_text`
+* :class:`bpy.types.ThemeInfo.info_selected`
+* :class:`bpy.types.ThemeInfo.info_selected_text`
+* :class:`bpy.types.ThemeInfo.info_warning`
+* :class:`bpy.types.ThemeInfo.info_warning_text`
+
+bpy.types.ThemeNLAEditor
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeNLAEditor.keyframe_border`
+* :class:`bpy.types.ThemeNLAEditor.keyframe_border_selected`
+
+bpy.types.ThemeNodeEditor
+-------------------------
+
+Removed
+^^^^^^^
+
+* **in_out_node**
+
+Renamed
+^^^^^^^
+
+* **operator_node** -> :class:`bpy.types.ThemeNodeEditor.color_node`
+* **operator_node** -> :class:`bpy.types.ThemeNodeEditor.filter_node`
+* **operator_node** -> :class:`bpy.types.ThemeNodeEditor.input_node`
+* **operator_node** -> :class:`bpy.types.ThemeNodeEditor.layout_node`
+* **operator_node** -> :class:`bpy.types.ThemeNodeEditor.output_node`
+* **operator_node** -> :class:`bpy.types.ThemeNodeEditor.pattern_node`
+* **operator_node** -> :class:`bpy.types.ThemeNodeEditor.script_node`
+* **operator_node** -> :class:`bpy.types.ThemeNodeEditor.shader_node`
+* **operator_node** -> :class:`bpy.types.ThemeNodeEditor.texture_node`
+* **operator_node** -> :class:`bpy.types.ThemeNodeEditor.vector_node`
+
+bpy.types.ThemeSpaceGeneric
+---------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeSpaceGeneric.tab_active`
+* :class:`bpy.types.ThemeSpaceGeneric.tab_back`
+* :class:`bpy.types.ThemeSpaceGeneric.tab_inactive`
+* :class:`bpy.types.ThemeSpaceGeneric.tab_outline`
+
+bpy.types.ThemeSpaceGradient
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeSpaceGradient.tab_active`
+* :class:`bpy.types.ThemeSpaceGradient.tab_back`
+* :class:`bpy.types.ThemeSpaceGradient.tab_inactive`
+* :class:`bpy.types.ThemeSpaceGradient.tab_outline`
+
+bpy.types.TimelineMarkers
+-------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.TimelineMarkers.new` (name, frame), *was (name)*
+
+bpy.types.UILayout
+------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.UILayout.prop` (data, property, text, text_ctxt, translate, icon, expand, slider, toggle, icon_only, event, full_event, emboss, index, icon_value), *was (data, property, text, text_ctxt, translate, icon, expand, slider, toggle, icon_only, event, full_event, emboss, index)*
+* :class:`bpy.types.UILayout.template_header` (), *was (menus)*
+
+bpy.types.UserPreferencesEdit
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesEdit.grease_pencil_default_color`
+
+bpy.types.UserPreferencesInput
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesInput.navigation_mode`
+* :class:`bpy.types.UserPreferencesInput.ndof_pan_yz_swap_axis`
+* :class:`bpy.types.UserPreferencesInput.ndof_rotx_invert_axis`
+* :class:`bpy.types.UserPreferencesInput.ndof_roty_invert_axis`
+* :class:`bpy.types.UserPreferencesInput.ndof_rotz_invert_axis`
+* :class:`bpy.types.UserPreferencesInput.ndof_view_navigate_method`
+* :class:`bpy.types.UserPreferencesInput.walk_navigation`
+
+Removed
+^^^^^^^
+
+* **ndof_roll_invert_axis**
+* **ndof_rotate_invert_axis**
+* **ndof_tilt_invert_axis**
+* **ndof_zoom_updown**
+
+2.70 to 2.71
+============
+
+bpy.types.Actuator
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Actuator.active`
+
+bpy.types.BlendDataLineStyles
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BlendDataLineStyles.is_updated`
+
+bpy.types.TransformConstraint
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.TransformConstraint.from_max_x_rot`
+* :class:`bpy.types.TransformConstraint.from_max_x_scale`
+* :class:`bpy.types.TransformConstraint.from_max_y_rot`
+* :class:`bpy.types.TransformConstraint.from_max_y_scale`
+* :class:`bpy.types.TransformConstraint.from_max_z_rot`
+* :class:`bpy.types.TransformConstraint.from_max_z_scale`
+* :class:`bpy.types.TransformConstraint.from_min_x_rot`
+* :class:`bpy.types.TransformConstraint.from_min_x_scale`
+* :class:`bpy.types.TransformConstraint.from_min_y_rot`
+* :class:`bpy.types.TransformConstraint.from_min_y_scale`
+* :class:`bpy.types.TransformConstraint.from_min_z_rot`
+* :class:`bpy.types.TransformConstraint.from_min_z_scale`
+* :class:`bpy.types.TransformConstraint.to_max_x_rot`
+* :class:`bpy.types.TransformConstraint.to_max_x_scale`
+* :class:`bpy.types.TransformConstraint.to_max_y_rot`
+* :class:`bpy.types.TransformConstraint.to_max_y_scale`
+* :class:`bpy.types.TransformConstraint.to_max_z_rot`
+* :class:`bpy.types.TransformConstraint.to_max_z_scale`
+* :class:`bpy.types.TransformConstraint.to_min_x_rot`
+* :class:`bpy.types.TransformConstraint.to_min_x_scale`
+* :class:`bpy.types.TransformConstraint.to_min_y_rot`
+* :class:`bpy.types.TransformConstraint.to_min_y_scale`
+* :class:`bpy.types.TransformConstraint.to_min_z_rot`
+* :class:`bpy.types.TransformConstraint.to_min_z_scale`
+
+bpy.types.Controller
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Controller.active`
+
+bpy.types.FCurve
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FCurve.update`
+
+bpy.types.Brush
+---------------
+
+Removed
+^^^^^^^
+
+* **sculpt_stroke_method**
+
+bpy.types.Curve
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Curve.bevel_factor_mapping_end`
+* :class:`bpy.types.Curve.bevel_factor_mapping_start`
+
+bpy.types.FreestyleLineStyle
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FreestyleLineStyle.active_texture`
+* :class:`bpy.types.FreestyleLineStyle.active_texture_index`
+* :class:`bpy.types.FreestyleLineStyle.integration_type`
+* :class:`bpy.types.FreestyleLineStyle.node_tree`
+* :class:`bpy.types.FreestyleLineStyle.sort_key`
+* :class:`bpy.types.FreestyleLineStyle.sort_order`
+* :class:`bpy.types.FreestyleLineStyle.texture_slots`
+* :class:`bpy.types.FreestyleLineStyle.texture_spacing`
+* :class:`bpy.types.FreestyleLineStyle.use_nodes`
+* :class:`bpy.types.FreestyleLineStyle.use_sorting`
+* :class:`bpy.types.FreestyleLineStyle.use_texture`
+
+bpy.types.Material
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Material.use_cast_shadows`
+
+bpy.types.Mesh
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Mesh.show_normal_loop`
+
+bpy.types.Object
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Object.cycles`
+
+bpy.types.Scene
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Scene.show_keys_from_selected_only`
+
+bpy.types.Speaker
+-----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Speaker.relative`
+
+bpy.types.Keyframe
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Keyframe.amplitude`
+* :class:`bpy.types.Keyframe.back`
+* :class:`bpy.types.Keyframe.easing`
+* :class:`bpy.types.Keyframe.period`
+
+bpy.types.Linesets
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Linesets.new`
+* :class:`bpy.types.Linesets.remove`
+
+bpy.types.MaskSplinePoint
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MaskSplinePoint.handle_left_type`
+* :class:`bpy.types.MaskSplinePoint.handle_right_type`
+* :class:`bpy.types.MaskSplinePoint.weight`
+
+bpy.types.MeshEdge
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MeshEdge.use_freestyle_mark`
+
+bpy.types.MeshPolygon
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MeshPolygon.use_freestyle_mark`
+
+bpy.types.MeshTessFace
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MeshTessFace.split_normals`
+
+bpy.types.MovieTrackingCamera
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MovieTrackingCamera.distortion_model`
+* :class:`bpy.types.MovieTrackingCamera.division_k1`
+* :class:`bpy.types.MovieTrackingCamera.division_k2`
+
+bpy.types.ShaderNodeTexImage
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShaderNodeTexImage.interpolation`
+
+bpy.types.PackedFile
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.PackedFile.data`
+
+bpy.types.Sculpt
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Sculpt.constant_detail`
+* :class:`bpy.types.Sculpt.detail_type_method`
+
+bpy.types.CyclesRenderSettings
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesRenderSettings.bake_type`
+* :class:`bpy.types.CyclesRenderSettings.sample_all_lights_direct`
+* :class:`bpy.types.CyclesRenderSettings.sample_all_lights_indirect`
+
+bpy.types.RenderEngine
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderEngine.bake`
+* :class:`bpy.types.RenderEngine.frame_set`
+
+bpy.types.CYCLES
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CYCLES.bake`
+
+bpy.types.RenderSettings
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderSettings.bake`
+
+bpy.types.Sensor
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Sensor.active`
+
+bpy.types.SequenceElements
+--------------------------
+
+Renamed
+^^^^^^^
+
+* **push** -> :class:`bpy.types.SequenceElements.append`
+
+bpy.types.SmokeDomainSettings
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SmokeDomainSettings.color_grid`
+* :class:`bpy.types.SmokeDomainSettings.density_grid`
+* :class:`bpy.types.SmokeDomainSettings.flame_grid`
+
+Removed
+^^^^^^^
+
+* **density**
+
+bpy.types.Space
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Space.show_locked_time`
+
+bpy.types.SpaceTimeline
+-----------------------
+
+Removed
+^^^^^^^
+
+* **show_only_selected**
+
+bpy.types.SpaceView3D
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceView3D.region_quadviews`
+
+Removed
+^^^^^^^
+
+* **region_quadview**
+
+bpy.types.SpaceNodeEditorPath
+-----------------------------
+
+Renamed
+^^^^^^^
+
+* **push** -> :class:`bpy.types.SpaceNodeEditorPath.append`
+
+bpy.types.ThemeClipEditor
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeClipEditor.handle_align`
+* :class:`bpy.types.ThemeClipEditor.handle_auto`
+* :class:`bpy.types.ThemeClipEditor.handle_auto_clamped`
+* :class:`bpy.types.ThemeClipEditor.handle_free`
+* :class:`bpy.types.ThemeClipEditor.handle_sel_align`
+* :class:`bpy.types.ThemeClipEditor.handle_sel_auto`
+* :class:`bpy.types.ThemeClipEditor.handle_sel_auto_clamped`
+* :class:`bpy.types.ThemeClipEditor.handle_sel_free`
+
+bpy.types.ThemeImageEditor
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeImageEditor.frame_current`
+* :class:`bpy.types.ThemeImageEditor.handle_align`
+* :class:`bpy.types.ThemeImageEditor.handle_auto`
+* :class:`bpy.types.ThemeImageEditor.handle_auto_clamped`
+* :class:`bpy.types.ThemeImageEditor.handle_free`
+* :class:`bpy.types.ThemeImageEditor.handle_sel_align`
+* :class:`bpy.types.ThemeImageEditor.handle_sel_auto`
+* :class:`bpy.types.ThemeImageEditor.handle_sel_auto_clamped`
+* :class:`bpy.types.ThemeImageEditor.handle_sel_free`
+
+bpy.types.ThemeView3D
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeView3D.view_overlay`
+
+bpy.types.UILayout
+------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.UILayout.template_preview` (id, show_buttons, parent, slot, preview_id), *was (id, show_buttons, parent, slot)*
+
+2.71 to 2.72
+============
+
+bpy.types.EditObjectActuator
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.EditObjectActuator.track_axis`
+* :class:`bpy.types.EditObjectActuator.up_axis`
+
+bpy.types.BlendData
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BlendData.version`
+
+bpy.types.BoneGroups
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BoneGroups.new`
+* :class:`bpy.types.BoneGroups.remove`
+
+bpy.types.BrushCapabilities
+---------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BrushCapabilities.has_smooth_stroke`
+
+bpy.types.ColorRamp
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ColorRamp.color_mode`
+* :class:`bpy.types.ColorRamp.hue_interpolation`
+
+bpy.types.ColorRampElement
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ColorRampElement.alpha`
+
+bpy.types.FollowTrackConstraint
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FollowTrackConstraint.use_undistorted_position`
+
+bpy.types.Event
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Event.is_tablet`
+* :class:`bpy.types.Event.pressure`
+* :class:`bpy.types.Event.tilt`
+
+bpy.types.Brush
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Brush.blur_kernel_radius`
+* :class:`bpy.types.Brush.blur_mode`
+* :class:`bpy.types.Brush.fill_threshold`
+* :class:`bpy.types.Brush.grad_spacing`
+* :class:`bpy.types.Brush.gradient`
+* :class:`bpy.types.Brush.gradient_fill_mode`
+* :class:`bpy.types.Brush.gradient_stroke_mode`
+* :class:`bpy.types.Brush.image_paint_capabilities`
+* :class:`bpy.types.Brush.paint_curve`
+* :class:`bpy.types.Brush.secondary_color`
+* :class:`bpy.types.Brush.sharp_threshold`
+* :class:`bpy.types.Brush.use_curve`
+* :class:`bpy.types.Brush.use_gradient`
+* :class:`bpy.types.Brush.use_line`
+* :class:`bpy.types.Brush.use_pressure_masking`
+
+Renamed
+^^^^^^^
+
+* **use_drag_dot** -> :class:`bpy.types.Brush.use_restore_mesh`
+
+bpy.types.Curve
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Curve.validate_material_indices`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.Curve.transform` (matrix, shape_keys), *was (matrix)*
+
+bpy.types.Lattice
+-----------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.Lattice.transform` (matrix, shape_keys), *was (matrix)*
+
+bpy.types.Library
+-----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Library.packed_file`
+
+bpy.types.Material
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Material.line_color`
+* :class:`bpy.types.Material.line_priority`
+* :class:`bpy.types.Material.paint_active_slot`
+* :class:`bpy.types.Material.paint_clone_slot`
+* :class:`bpy.types.Material.texture_paint_images`
+* :class:`bpy.types.Material.texture_paint_slots`
+
+bpy.types.Mesh
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Mesh.validate_material_indices`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.Mesh.transform` (matrix, shape_keys), *was (matrix)*
+
+bpy.types.WindowManager
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.WindowManager.piemenu_begin__internal`
+* :class:`bpy.types.WindowManager.piemenu_end__internal`
+* :class:`bpy.types.WindowManager.popup_menu_pie`
+
+bpy.types.BevelModifier
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BevelModifier.material`
+
+bpy.types.HookModifier
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.HookModifier.center`
+
+bpy.types.SolidifyModifier
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SolidifyModifier.use_rim_only`
+
+bpy.types.ShaderNodeBsdfAnisotropic
+-----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShaderNodeBsdfAnisotropic.distribution`
+
+bpy.types.Paint
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Paint.palette`
+
+bpy.types.ImagePaint
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ImagePaint.canvas`
+* :class:`bpy.types.ImagePaint.clone_image`
+* :class:`bpy.types.ImagePaint.detect_data`
+* :class:`bpy.types.ImagePaint.missing_materials`
+* :class:`bpy.types.ImagePaint.missing_stencil`
+* :class:`bpy.types.ImagePaint.missing_texture`
+* :class:`bpy.types.ImagePaint.missing_uvs`
+* :class:`bpy.types.ImagePaint.mode`
+* :class:`bpy.types.ImagePaint.stencil_color`
+* :class:`bpy.types.ImagePaint.stencil_image`
+
+bpy.types.IMAGE_UV_sculpt
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.IMAGE_UV_sculpt.prop_unified_color`
+* :class:`bpy.types.IMAGE_UV_sculpt.prop_unified_color_picker`
+
+bpy.types.CyclesCameraSettings
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesCameraSettings.aperture_ratio`
+
+bpy.types.CyclesMaterialSettings
+--------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesMaterialSettings.volume_sampling`
+
+bpy.types.CyclesRenderSettings
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesRenderSettings.caustics_reflective`
+* :class:`bpy.types.CyclesRenderSettings.caustics_refractive`
+
+Removed
+^^^^^^^
+
+* **no_caustics**
+* **volume_homogeneous_sampling**
+
+bpy.types.CyclesVisibilitySettings
+----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesVisibilitySettings.scatter`
+
+bpy.types.CyclesWorldSettings
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesWorldSettings.volume_sampling`
+
+bpy.types.OperatorStrokeElement
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.OperatorStrokeElement.size`
+
+bpy.types.RenderEngine
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderEngine.bl_use_texture_preview`
+* :class:`bpy.types.RenderEngine.layer_override`
+
+bpy.types.RenderSettings
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderSettings.preview_start_resolution`
+* :class:`bpy.types.RenderSettings.use_render_cache`
+
+bpy.types.MouseSensor
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MouseSensor.material`
+* :class:`bpy.types.MouseSensor.property`
+* :class:`bpy.types.MouseSensor.use_material`
+* :class:`bpy.types.MouseSensor.use_x_ray`
+
+bpy.types.SpaceUVEditor
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceUVEditor.show_texpaint`
+
+bpy.types.ThemeImageEditor
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeImageEditor.handle_vertex`
+* :class:`bpy.types.ThemeImageEditor.handle_vertex_select`
+* :class:`bpy.types.ThemeImageEditor.handle_vertex_size`
+* :class:`bpy.types.ThemeImageEditor.paint_curve_handle`
+* :class:`bpy.types.ThemeImageEditor.paint_curve_pivot`
+
+bpy.types.ThemeUserInterface
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeUserInterface.wcol_pie_menu`
+
+bpy.types.ThemeView3D
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeView3D.paint_curve_handle`
+* :class:`bpy.types.ThemeView3D.paint_curve_pivot`
+* :class:`bpy.types.ThemeView3D.split_normal`
+
+bpy.types.UILayout
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UILayout.menu_pie`
+* :class:`bpy.types.UILayout.template_palette`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.UILayout.template_curve_mapping` (data, property, type, levels, brush, use_negative_slope), *was (data, property, type, levels, brush)*
+
+bpy.types.UnifiedPaintSettings
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UnifiedPaintSettings.color`
+* :class:`bpy.types.UnifiedPaintSettings.secondary_color`
+* :class:`bpy.types.UnifiedPaintSettings.use_unified_color`
+
+bpy.types.UserPreferencesFilePaths
+----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesFilePaths.render_cache_directory`
+
+bpy.types.UserPreferencesSystem
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesSystem.font_path_ui`
+* :class:`bpy.types.UserPreferencesSystem.is_occlusion_query_supported`
+* :class:`bpy.types.UserPreferencesSystem.select_method`
+
+bpy.types.UserPreferencesView
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesView.pie_animation_timeout`
+* :class:`bpy.types.UserPreferencesView.pie_initial_timeout`
+* :class:`bpy.types.UserPreferencesView.pie_menu_radius`
+* :class:`bpy.types.UserPreferencesView.pie_menu_threshold`
+
+2.72 to 2.73
+============
+
+bpy.types.ActionGroup
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ActionGroup.is_custom_color_set`
+
+bpy.types.BoneGroup
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BoneGroup.is_custom_color_set`
+
+bpy.types.StretchToConstraint
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.StretchToConstraint.bulge_max`
+* :class:`bpy.types.StretchToConstraint.bulge_min`
+* :class:`bpy.types.StretchToConstraint.bulge_smooth`
+* :class:`bpy.types.StretchToConstraint.use_bulge_max`
+* :class:`bpy.types.StretchToConstraint.use_bulge_min`
+
+bpy.types.DopeSheet
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.DopeSheet.show_gpencil`
+
+bpy.types.FreestyleSettings
+---------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FreestyleSettings.use_view_map_cache`
+
+bpy.types.GPencilLayer
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPencilLayer.after_color`
+* :class:`bpy.types.GPencilLayer.before_color`
+* :class:`bpy.types.GPencilLayer.fill_alpha`
+* :class:`bpy.types.GPencilLayer.fill_color`
+* :class:`bpy.types.GPencilLayer.ghost_after_range`
+* :class:`bpy.types.GPencilLayer.ghost_before_range`
+* :class:`bpy.types.GPencilLayer.use_ghost_custom_colors`
+* :class:`bpy.types.GPencilLayer.use_volumetric_strokes`
+
+Removed
+^^^^^^^
+
+* **ghost_range_max**
+
+bpy.types.GPencilStroke
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPencilStroke.select`
+
+bpy.types.GPencilStrokePoint
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPencilStrokePoint.select`
+
+bpy.types.GreasePencilLayers
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GreasePencilLayers.active_index`
+
+bpy.types.FreestyleLineStyle
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FreestyleLineStyle.chain_count`
+* :class:`bpy.types.FreestyleLineStyle.use_chain_count`
+
+bpy.types.GreasePencil
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GreasePencil.animation_data`
+* :class:`bpy.types.GreasePencil.use_stroke_edit_mode`
+
+bpy.types.Image
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Image.generated_color`
+* :class:`bpy.types.Image.render_slots`
+
+Removed
+^^^^^^^
+
+* **render_slot**
+
+bpy.types.Scene
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Scene.uvedit_aspect`
+
+bpy.types.CyclesLampSettings
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesLampSettings.max_bounces`
+
+bpy.types.CyclesMaterialSettings
+--------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesMaterialSettings.volume_interpolation`
+
+bpy.types.CyclesWorldSettings
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesWorldSettings.volume_interpolation`
+
+bpy.types.RenderEngine
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderEngine.error_set`
+
+bpy.types.RenderPass
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderPass.debug_type`
+
+bpy.types.SculptToolCapabilities
+--------------------------------
+
+Renamed
+^^^^^^^
+
+* **has_strength** -> :class:`bpy.types.SculptToolCapabilities.has_strength_pressure`
+
+bpy.types.SceneSequence
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SceneSequence.use_grease_pencil`
+
+bpy.types.SpaceSequenceEditor
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceSequenceEditor.show_backdrop`
+* :class:`bpy.types.SpaceSequenceEditor.show_strip_offset`
+* :class:`bpy.types.SpaceSequenceEditor.waveform_draw_type`
+
+bpy.types.SpaceView3D
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceView3D.show_world`
+
+bpy.types.ThemeClipEditor
+-------------------------
+
+Removed
+^^^^^^^
+
+* **grid**
+
+bpy.types.ThemeNodeEditor
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeNodeEditor.wire_inner`
+
+bpy.types.ThemeUserInterface
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeUserInterface.widget_emboss`
+
+bpy.types.ToolSettings
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ToolSettings.grease_pencil_source`
+
+bpy.types.UILayout
+------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.UILayout.operator` (operator, text, text_ctxt, translate, icon, emboss, icon_value), *was (operator, text, text_ctxt, translate, icon, emboss)*
+
+bpy.types.UserPreferencesSystem
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesSystem.virtual_pixel_mode`
+
+bpy.types.UserPreferencesView
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesView.pie_menu_confirm`
+
+2.73 to 2.74
+============
+
+bpy.types.SteeringActuator
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SteeringActuator.lock_z_velocity`
+
+bpy.types.BackgroundImage
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BackgroundImage.rotation`
+* :class:`bpy.types.BackgroundImage.use_flip_x`
+* :class:`bpy.types.BackgroundImage.use_flip_y`
+
+bpy.types.BrushCapabilities
+---------------------------
+
+Removed
+^^^^^^^
+
+* **has_texture_angle**
+* **has_texture_angle_source**
+
+bpy.types.ClothCollisionSettings
+--------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ClothCollisionSettings.damping`
+
+bpy.types.ClothSettings
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ClothSettings.bending_damping`
+* :class:`bpy.types.ClothSettings.density_strength`
+* :class:`bpy.types.ClothSettings.density_target`
+* :class:`bpy.types.ClothSettings.voxel_cell_size`
+
+Removed
+^^^^^^^
+
+* **pre_roll**
+
+bpy.types.SplineIKConstraint
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SplineIKConstraint.bulge`
+* :class:`bpy.types.SplineIKConstraint.bulge_max`
+* :class:`bpy.types.SplineIKConstraint.bulge_min`
+* :class:`bpy.types.SplineIKConstraint.bulge_smooth`
+* :class:`bpy.types.SplineIKConstraint.use_bulge_max`
+* :class:`bpy.types.SplineIKConstraint.use_bulge_min`
+
+bpy.types.FCurve
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FCurve.convert_to_keyframes`
+* :class:`bpy.types.FCurve.convert_to_samples`
+
+bpy.types.FileSelectParams
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FileSelectParams.filter_search`
+
+bpy.types.GPencilLayer
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPencilLayer.is_fill_visible`
+* :class:`bpy.types.GPencilLayer.is_stroke_visible`
+
+bpy.types.Brush
+---------------
+
+Removed
+^^^^^^^
+
+* **texture_angle_source_no_random**
+* **texture_angle_source_random**
+* **use_rake**
+* **use_random_rotation**
+
+bpy.types.Camera
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Camera.gpu_dof`
+* :class:`bpy.types.Camera.show_safe_center`
+
+Renamed
+^^^^^^^
+
+* **show_title_safe** -> :class:`bpy.types.Camera.show_safe_areas`
+
+bpy.types.Image
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Image.use_deinterlace`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.Image.pack` (as_png, data, data_len), *was (as_png)*
+
+bpy.types.Key
+-------------
+
+Removed
+^^^^^^^
+
+* **slurph**
+
+bpy.types.Mesh
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Mesh.create_normals_split`
+* :class:`bpy.types.Mesh.has_custom_normals`
+* :class:`bpy.types.Mesh.normals_split_custom_set`
+* :class:`bpy.types.Mesh.normals_split_custom_set_from_vertices`
+* :class:`bpy.types.Mesh.vertex_layers_float`
+* :class:`bpy.types.Mesh.vertex_layers_int`
+* :class:`bpy.types.Mesh.vertex_layers_string`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.Mesh.calc_normals_split` (), *was (split_angle)*
+* :class:`bpy.types.Mesh.validate` (verbose, clean_customdata), *was (verbose)*
+
+bpy.types.Object
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Object.calc_matrix_camera`
+* :class:`bpy.types.Object.camera_fit_coords`
+
+bpy.types.ParticleSettings
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ParticleSettings.bending_random`
+* :class:`bpy.types.ParticleSettings.clump_curve`
+* :class:`bpy.types.ParticleSettings.clump_noise_size`
+* :class:`bpy.types.ParticleSettings.kink_amplitude_random`
+* :class:`bpy.types.ParticleSettings.kink_axis_random`
+* :class:`bpy.types.ParticleSettings.kink_extra_steps`
+* :class:`bpy.types.ParticleSettings.roughness_curve`
+* :class:`bpy.types.ParticleSettings.show_guide_hairs`
+* :class:`bpy.types.ParticleSettings.show_hair_grid`
+* :class:`bpy.types.ParticleSettings.use_clump_curve`
+* :class:`bpy.types.ParticleSettings.use_clump_noise`
+* :class:`bpy.types.ParticleSettings.use_roughness_curve`
+
+bpy.types.Scene
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Scene.safe_areas`
+
+bpy.types.Screen
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Screen.use_follow`
+
+bpy.types.Sound
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Sound.pack`
+* :class:`bpy.types.Sound.unpack`
+
+bpy.types.VectorFont
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.VectorFont.pack`
+* :class:`bpy.types.VectorFont.unpack`
+
+bpy.types.KeyingSet
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.KeyingSet.use_insertkey_needed`
+* :class:`bpy.types.KeyingSet.use_insertkey_override_needed`
+* :class:`bpy.types.KeyingSet.use_insertkey_override_visual`
+* :class:`bpy.types.KeyingSet.use_insertkey_override_xyz_to_rgb`
+* :class:`bpy.types.KeyingSet.use_insertkey_visual`
+* :class:`bpy.types.KeyingSet.use_insertkey_xyz_to_rgb`
+
+Removed
+^^^^^^^
+
+* **bl_options**
+
+bpy.types.KeyingSetPath
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.KeyingSetPath.use_insertkey_needed`
+* :class:`bpy.types.KeyingSetPath.use_insertkey_override_needed`
+* :class:`bpy.types.KeyingSetPath.use_insertkey_override_visual`
+* :class:`bpy.types.KeyingSetPath.use_insertkey_override_xyz_to_rgb`
+* :class:`bpy.types.KeyingSetPath.use_insertkey_visual`
+* :class:`bpy.types.KeyingSetPath.use_insertkey_xyz_to_rgb`
+
+Removed
+^^^^^^^
+
+* **bl_options**
+
+bpy.types.ClothModifier
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ClothModifier.hair_grid_max`
+* :class:`bpy.types.ClothModifier.hair_grid_min`
+* :class:`bpy.types.ClothModifier.hair_grid_resolution`
+* :class:`bpy.types.ClothModifier.solver_result`
+
+bpy.types.HookModifier
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.HookModifier.falloff_curve`
+* :class:`bpy.types.HookModifier.falloff_type`
+* :class:`bpy.types.HookModifier.use_falloff_uniform`
+
+Renamed
+^^^^^^^
+
+* **falloff** -> :class:`bpy.types.HookModifier.falloff_radius`
+* **force** -> :class:`bpy.types.HookModifier.strength`
+
+bpy.types.Node
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Node.shading_compatibility`
+
+bpy.types.CompositorNodePlaneTrackDeform
+----------------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CompositorNodePlaneTrackDeform.motion_blur_samples`
+* :class:`bpy.types.CompositorNodePlaneTrackDeform.motion_blur_shutter`
+* :class:`bpy.types.CompositorNodePlaneTrackDeform.use_motion_blur`
+
+bpy.types.NodeFrame
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.NodeFrame.text`
+
+bpy.types.ShaderNodeTexCoord
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShaderNodeTexCoord.object`
+
+bpy.types.Paint
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Paint.cavity_curve`
+* :class:`bpy.types.Paint.use_cavity`
+
+bpy.types.ImagePaint
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ImagePaint.dither`
+
+bpy.types.ParticleEdit
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ParticleEdit.shape_object`
+
+bpy.types.CyclesCameraSettings
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesCameraSettings.latitude_max`
+* :class:`bpy.types.CyclesCameraSettings.latitude_min`
+* :class:`bpy.types.CyclesCameraSettings.longitude_max`
+* :class:`bpy.types.CyclesCameraSettings.longitude_min`
+
+bpy.types.RegionView3D
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RegionView3D.window_matrix`
+
+bpy.types.SequenceProxy
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SequenceProxy.use_overwrite`
+
+bpy.types.SpaceFileBrowser
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceFileBrowser.bookmarks`
+* :class:`bpy.types.SpaceFileBrowser.bookmarks_active`
+* :class:`bpy.types.SpaceFileBrowser.recent_folders`
+* :class:`bpy.types.SpaceFileBrowser.recent_folders_active`
+* :class:`bpy.types.SpaceFileBrowser.system_bookmarks`
+* :class:`bpy.types.SpaceFileBrowser.system_bookmarks_active`
+* :class:`bpy.types.SpaceFileBrowser.system_folders`
+* :class:`bpy.types.SpaceFileBrowser.system_folders_active`
+
+bpy.types.SpaceOutliner
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceOutliner.use_sort_alpha`
+
+bpy.types.SpaceSequenceEditor
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceSequenceEditor.show_safe_areas`
+* :class:`bpy.types.SpaceSequenceEditor.show_safe_center`
+
+Removed
+^^^^^^^
+
+* **show_safe_margin**
+
+bpy.types.SpaceTextEditor
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceTextEditor.region_location_from_cursor`
+
+bpy.types.SpaceView3D
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceView3D.fx_settings`
+
+bpy.types.BrushTextureSlot
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BrushTextureSlot.has_random_texture_angle`
+* :class:`bpy.types.BrushTextureSlot.has_texture_angle`
+* :class:`bpy.types.BrushTextureSlot.has_texture_angle_source`
+* :class:`bpy.types.BrushTextureSlot.random_angle`
+* :class:`bpy.types.BrushTextureSlot.use_rake`
+* :class:`bpy.types.BrushTextureSlot.use_random`
+
+bpy.types.ParticleSettingsTextureSlot
+-------------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ParticleSettingsTextureSlot.kink_amp_factor`
+* :class:`bpy.types.ParticleSettingsTextureSlot.kink_freq_factor`
+* :class:`bpy.types.ParticleSettingsTextureSlot.use_map_kink_amp`
+* :class:`bpy.types.ParticleSettingsTextureSlot.use_map_kink_freq`
+
+Removed
+^^^^^^^
+
+* **kink_factor**
+* **use_map_kink**
+
+bpy.types.ThemeClipEditor
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeClipEditor.gp_vertex`
+* :class:`bpy.types.ThemeClipEditor.gp_vertex_select`
+* :class:`bpy.types.ThemeClipEditor.gp_vertex_size`
+
+bpy.types.ThemeImageEditor
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeImageEditor.gp_vertex`
+* :class:`bpy.types.ThemeImageEditor.gp_vertex_select`
+* :class:`bpy.types.ThemeImageEditor.gp_vertex_size`
+
+bpy.types.ThemeNodeEditor
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeNodeEditor.gp_vertex`
+* :class:`bpy.types.ThemeNodeEditor.gp_vertex_select`
+* :class:`bpy.types.ThemeNodeEditor.gp_vertex_size`
+
+bpy.types.ThemeSequenceEditor
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeSequenceEditor.gp_vertex`
+* :class:`bpy.types.ThemeSequenceEditor.gp_vertex_select`
+* :class:`bpy.types.ThemeSequenceEditor.gp_vertex_size`
+
+bpy.types.ThemeTimeline
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeTimeline.time_grease_pencil`
+* :class:`bpy.types.ThemeTimeline.time_keyframe`
+
+bpy.types.ThemeView3D
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeView3D.clipping_border_3d`
+* :class:`bpy.types.ThemeView3D.gp_vertex`
+* :class:`bpy.types.ThemeView3D.gp_vertex_select`
+* :class:`bpy.types.ThemeView3D.gp_vertex_size`
+
+bpy.types.UILayout
+------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.UILayout.template_list` (listtype_name, list_id, dataptr, propname, active_dataptr, active_propname, item_dyntip_propname, rows, maxrows, type, columns), *was (listtype_name, list_id, dataptr, propname, active_dataptr, active_propname, rows, maxrows, type, columns)*
+
+bpy.types.UserPreferencesSystem
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesSystem.pixel_size`
+
+bpy.types.UserPreferencesView
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesView.use_gl_warn_support`
+
+bpy.types.VoxelData
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.VoxelData.hair_data_type`
+
+2.74 to 2.75
+============
+
+bpy.types.BakePixel
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BakePixel.object_id`
+
+bpy.types.BlendData
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BlendData.palettes`
+
+bpy.types.BlendDataImages
+-------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataImages.new` (name, width, height, alpha, float_buffer, stereo3d), *was (name, width, height, alpha, float_buffer)*
+
+bpy.types.BlendDataSounds
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BlendDataSounds.load`
+* :class:`bpy.types.BlendDataSounds.remove`
+
+bpy.types.DopeSheet
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.DopeSheet.filter_text`
+* :class:`bpy.types.DopeSheet.use_filter_text`
+
+bpy.types.FileSelectParams
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FileSelectParams.thumbnail_size`
+
+bpy.types.GPUDOFSettings
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPUDOFSettings.blades`
+* :class:`bpy.types.GPUDOFSettings.is_hq_supported`
+* :class:`bpy.types.GPUDOFSettings.use_high_quality`
+
+bpy.types.Camera
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Camera.stereo`
+
+bpy.types.Image
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Image.buffers_free`
+* :class:`bpy.types.Image.is_multiview`
+* :class:`bpy.types.Image.is_stereo_3d`
+* :class:`bpy.types.Image.packed_files`
+* :class:`bpy.types.Image.stereo_3d_format`
+* :class:`bpy.types.Image.use_multiview`
+* :class:`bpy.types.Image.views_format`
+
+bpy.types.SunLamp
+-----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SunLamp.show_shadow_box`
+
+bpy.types.Mesh
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Mesh.vertex_paint_masks`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.Mesh.calc_tessface` (free_mpoly), *was ()*
+
+bpy.types.Object
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Object.cache_release`
+* :class:`bpy.types.Object.shape_key_remove`
+
+bpy.types.Scene
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Scene.depsgraph`
+
+bpy.types.ImageFormatSettings
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ImageFormatSettings.stereo_3d_format`
+* :class:`bpy.types.ImageFormatSettings.views_format`
+
+bpy.types.ImageUser
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ImageUser.multilayer_view`
+
+Removed
+^^^^^^^
+
+* **multilayer_pass**
+
+bpy.types.LodLevel
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.LodLevel.object_hysteresis_percentage`
+* :class:`bpy.types.LodLevel.use_object_hysteresis`
+
+bpy.types.DecimateModifier
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.DecimateModifier.vertex_group_factor`
+
+bpy.types.CompositorNodeImage
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CompositorNodeImage.has_layers`
+* :class:`bpy.types.CompositorNodeImage.has_views`
+* :class:`bpy.types.CompositorNodeImage.view`
+
+bpy.types.TextureNodeImage
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.TextureNodeImage.image_user`
+
+bpy.types.Operator
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Operator.macros`
+* :class:`bpy.types.Operator.options`
+
+bpy.types.Sculpt
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Sculpt.detail_percent`
+
+bpy.types.PointCache
+--------------------
+
+Renamed
+^^^^^^^
+
+* **frames_skipped** -> :class:`bpy.types.PointCache.is_frame_skip`
+
+bpy.types.CyclesLampSettings
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesLampSettings.is_portal`
+
+bpy.types.CyclesRenderSettings
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesRenderSettings.use_animated_seed`
+
+bpy.types.Region
+----------------
+
+Removed
+^^^^^^^
+
+* **callback_add**
+
+bpy.types.RenderEngine
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderEngine.active_view_set`
+* :class:`bpy.types.RenderEngine.bl_use_shading_nodes_custom`
+* :class:`bpy.types.RenderEngine.camera_model_matrix`
+* :class:`bpy.types.RenderEngine.camera_shift_x`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.RenderEngine.bake` (scene, object, pass_type, object_id, pixel_array, num_pixels, depth, result), *was (scene, object, pass_type, pixel_array, num_pixels, depth, result)*
+* :class:`bpy.types.RenderEngine.begin_result` (x, y, w, h, layer, view), *was (x, y, w, h, layer)*
+
+bpy.types.CYCLES
+----------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.CYCLES.bake` (self, scene, obj, pass_type, object_id, pixel_array, num_pixels, depth, result), *was (self, scene, obj, pass_type, pixel_array, num_pixels, depth, result)*
+
+bpy.types.RenderLayer
+---------------------
+
+Removed
+^^^^^^^
+
+* **rect**
+
+bpy.types.RenderPass
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderPass.view_id`
+
+bpy.types.RenderResult
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderResult.views`
+
+bpy.types.RenderSettings
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderSettings.simplify_child_particles_render`
+* :class:`bpy.types.RenderSettings.simplify_subdivision_render`
+* :class:`bpy.types.RenderSettings.stereo_views`
+* :class:`bpy.types.RenderSettings.use_multiview`
+* :class:`bpy.types.RenderSettings.views`
+* :class:`bpy.types.RenderSettings.views_format`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.RenderSettings.frame_path` (frame, preview, view), *was (frame)*
+
+bpy.types.SceneGameData
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SceneGameData.scene_hysteresis_percentage`
+* :class:`bpy.types.SceneGameData.use_scene_hysteresis`
+
+bpy.types.Sensor
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Sensor.tick_skip`
+
+Removed
+^^^^^^^
+
+* **frequency**
+
+bpy.types.EffectSequence
+------------------------
+
+Removed
+^^^^^^^
+
+* **use_proxy_custom_directory**
+* **use_proxy_custom_file**
+
+bpy.types.ImageSequence
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ImageSequence.stereo_3d_format`
+* :class:`bpy.types.ImageSequence.use_multiview`
+* :class:`bpy.types.ImageSequence.views_format`
+
+Removed
+^^^^^^^
+
+* **use_proxy_custom_directory**
+* **use_proxy_custom_file**
+
+bpy.types.MetaSequence
+----------------------
+
+Removed
+^^^^^^^
+
+* **use_proxy_custom_directory**
+* **use_proxy_custom_file**
+
+bpy.types.MovieSequence
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MovieSequence.stereo_3d_format`
+* :class:`bpy.types.MovieSequence.use_multiview`
+* :class:`bpy.types.MovieSequence.views_format`
+
+Removed
+^^^^^^^
+
+* **use_proxy_custom_directory**
+* **use_proxy_custom_file**
+
+bpy.types.SceneSequence
+-----------------------
+
+Removed
+^^^^^^^
+
+* **use_proxy_custom_directory**
+* **use_proxy_custom_file**
+
+bpy.types.SequenceEditor
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SequenceEditor.proxy_dir`
+* :class:`bpy.types.SequenceEditor.proxy_storage`
+
+bpy.types.SequenceProxy
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SequenceProxy.use_proxy_custom_directory`
+* :class:`bpy.types.SequenceProxy.use_proxy_custom_file`
+
+bpy.types.SpaceImageEditor
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceImageEditor.show_stereo_3d`
+
+bpy.types.SpaceSequenceEditor
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceSequenceEditor.show_metadata`
+
+bpy.types.SpaceView3D
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceView3D.show_stereo_3d_cameras`
+* :class:`bpy.types.SpaceView3D.show_stereo_3d_convergence_plane`
+* :class:`bpy.types.SpaceView3D.show_stereo_3d_volume`
+* :class:`bpy.types.SpaceView3D.stereo_3d_camera`
+* :class:`bpy.types.SpaceView3D.stereo_3d_convergence_plane_alpha`
+* :class:`bpy.types.SpaceView3D.stereo_3d_eye`
+* :class:`bpy.types.SpaceView3D.stereo_3d_volume_alpha`
+
+bpy.types.SpaceUVEditor
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceUVEditor.show_metadata`
+
+bpy.types.ThemeImageEditor
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeImageEditor.metadatabg`
+* :class:`bpy.types.ThemeImageEditor.metadatatext`
+
+bpy.types.ThemeSequenceEditor
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeSequenceEditor.metadatabg`
+* :class:`bpy.types.ThemeSequenceEditor.metadatatext`
+
+bpy.types.ToolSettings
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ToolSettings.lock_markers`
+* :class:`bpy.types.ToolSettings.use_proportional_action`
+* :class:`bpy.types.ToolSettings.use_proportional_fcurve`
+
+bpy.types.UILayout
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UILayout.template_image_stereo_3d`
+* :class:`bpy.types.UILayout.template_image_views`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.UILayout.menu` (menu, text, text_ctxt, translate, icon, icon_value), *was (menu, text, text_ctxt, translate, icon)*
+* :class:`bpy.types.UILayout.template_icon_view` (data, property, show_labels), *was (data, property)*
+* :class:`bpy.types.UILayout.template_image` (data, property, image_user, compact, multiview), *was (data, property, image_user, compact)*
+
+bpy.types.UserPreferencesView
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesView.view_frame_keyframes`
+* :class:`bpy.types.UserPreferencesView.view_frame_seconds`
+* :class:`bpy.types.UserPreferencesView.view_frame_type`
+
+bpy.types.Window
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Window.stereo_3d_display`
+
+2.75 to 2.76
+============
+
+bpy.types.ActionFCurves
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ActionFCurves.find`
+
+bpy.types.BlendDataBrushes
+--------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataBrushes.new` (name, mode), *was (name)*
+
+bpy.types.FileSelectParams
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FileSelectParams.filter_id`
+* :class:`bpy.types.FileSelectParams.filter_id_category`
+* :class:`bpy.types.FileSelectParams.recursion_level`
+* :class:`bpy.types.FileSelectParams.use_filter_blendid`
+* :class:`bpy.types.FileSelectParams.use_library_browsing`
+
+bpy.types.GameObjectSettings
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GameObjectSettings.angular_velocity_max`
+* :class:`bpy.types.GameObjectSettings.angular_velocity_min`
+
+bpy.types.ID
+------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ID.preview`
+
+bpy.types.Brush
+---------------
+
+Removed
+^^^^^^^
+
+* **use_wrap**
+
+bpy.types.ImagePreview
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ImagePreview.icon_pixels_float`
+* :class:`bpy.types.ImagePreview.image_pixels_float`
+
+bpy.types.ImageUser
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ImageUser.multilayer_pass`
+
+bpy.types.BevelModifier
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BevelModifier.loop_slide`
+
+bpy.types.SubsurfModifier
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SubsurfModifier.use_opensubdiv`
+
+bpy.types.ShaderNodeTexImage
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShaderNodeTexImage.extension`
+
+bpy.types.Paint
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Paint.tile_offset`
+* :class:`bpy.types.Paint.tile_x`
+* :class:`bpy.types.Paint.tile_y`
+* :class:`bpy.types.Paint.tile_z`
+
+bpy.types.CyclesObjectBlurSettings
+----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesObjectBlurSettings.use_camera_cull`
+
+bpy.types.CyclesRenderSettings
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesRenderSettings.camera_cull_margin`
+* :class:`bpy.types.CyclesRenderSettings.use_camera_cull`
+
+bpy.types.CyclesWorldSettings
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesWorldSettings.max_bounces`
+
+bpy.types.RenderSettings
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderSettings.use_stamp_strip_meta`
+
+bpy.types.SmokeDomainSettings
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SmokeDomainSettings.velocity_grid`
+
+bpy.types.SpaceClipEditor
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceClipEditor.show_metadata`
+
+bpy.types.SpaceNodeEditor
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceNodeEditor.insert_offset_direction`
+* :class:`bpy.types.SpaceNodeEditor.use_insert_offset`
+
+bpy.types.ToolSettings
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ToolSettings.use_snap_grid_absolute`
+
+bpy.types.UILayout
+------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.UILayout.template_icon_view` (data, property, show_labels, scale), *was (data, property, show_labels)*
+
+bpy.types.UserPreferencesEdit
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesEdit.node_margin`
+
+bpy.types.UserPreferencesInput
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesInput.ndof_deadzone`
+
+bpy.types.UserPreferencesSystem
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesSystem.opensubdiv_compute_type`
+
+2.76 to 2.77
+============
+
+bpy.types.AnimDataDrivers
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.AnimDataDrivers.find`
+
+bpy.types.BakeSettings
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BakeSettings.pass_filter`
+* :class:`bpy.types.BakeSettings.use_pass_ambient_occlusion`
+* :class:`bpy.types.BakeSettings.use_pass_color`
+* :class:`bpy.types.BakeSettings.use_pass_diffuse`
+* :class:`bpy.types.BakeSettings.use_pass_direct`
+* :class:`bpy.types.BakeSettings.use_pass_emit`
+* :class:`bpy.types.BakeSettings.use_pass_glossy`
+* :class:`bpy.types.BakeSettings.use_pass_indirect`
+* :class:`bpy.types.BakeSettings.use_pass_subsurface`
+* :class:`bpy.types.BakeSettings.use_pass_transmission`
+
+bpy.types.BlendData
+-------------------
+
+Removed
+^^^^^^^
+
+* **scripts**
+
+bpy.types.BlendDataFonts
+------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataFonts.load` (filepath, check_existing), *was (filepath)*
+
+bpy.types.BlendDataImages
+-------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataImages.load` (filepath, check_existing), *was (filepath)*
+
+bpy.types.BlendDataMasks
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BlendDataMasks.is_updated`
+
+bpy.types.BlendDataMovieClips
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BlendDataMovieClips.is_updated`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataMovieClips.load` (filepath, check_existing), *was (filepath)*
+
+bpy.types.BlendDataSounds
+-------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataSounds.load` (filepath, check_existing), *was (filepath)*
+
+bpy.types.DopeSheet
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.DopeSheet.show_gpencil_3d_only`
+
+bpy.types.FileSelectParams
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FileSelectParams.display_size`
+
+Removed
+^^^^^^^
+
+* **thumbnail_size**
+
+bpy.types.GameObjectSettings
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GameObjectSettings.jump_max`
+
+bpy.types.ID
+------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ID.user_of_id`
+
+bpy.types.Brush
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Brush.rake_factor`
+
+bpy.types.FreestyleLineStyle
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FreestyleLineStyle.animation_data`
+
+bpy.types.GreasePencil
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GreasePencil.use_onion_skinning`
+
+Removed
+^^^^^^^
+
+* **draw_mode**
+* **use_stroke_endpoints**
+
+bpy.types.Object
+----------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.Object.closest_point_on_mesh` (origin, distance), *was (point, max_dist)*
+* :class:`bpy.types.Object.ray_cast` (origin, direction, distance), *was (start, end)*
+
+bpy.types.Scene
+---------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.Scene.ray_cast` (origin, direction, distance), *was (start, end)*
+
+bpy.types.ImageFormatSettings
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ImageFormatSettings.tiff_codec`
+
+bpy.types.ImagePackedFile
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ImagePackedFile.save`
+
+bpy.types.DataTransferModifier
+------------------------------
+
+Removed
+^^^^^^^
+
+* **data_types_loops_uv**
+* **data_types_loops_vcol**
+* **data_types_verts_vgroup**
+
+bpy.types.DecimateModifier
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.DecimateModifier.symmetry_axis`
+* :class:`bpy.types.DecimateModifier.use_symmetry`
+
+bpy.types.Node
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Node.insert_link`
+
+bpy.types.CompositorNodeBlur
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CompositorNodeBlur.use_extended_bounds`
+
+bpy.types.CompositorNodeBokehBlur
+---------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CompositorNodeBokehBlur.use_extended_bounds`
+
+bpy.types.CompositorNodeStabilize
+---------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CompositorNodeStabilize.invert`
+
+bpy.types.ShaderNodeTexEnvironment
+----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShaderNodeTexEnvironment.interpolation`
+
+bpy.types.ShaderNodeTexPointDensity
+-----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShaderNodeTexPointDensity.cache_point_density`
+* :class:`bpy.types.ShaderNodeTexPointDensity.calc_point_density_minmax`
+
+bpy.types.ShaderNodeTexWave
+---------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShaderNodeTexWave.wave_profile`
+
+bpy.types.PoseBone
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.PoseBone.custom_shape_scale`
+* :class:`bpy.types.PoseBone.use_custom_shape_bone_size`
+
+bpy.types.EnumProperty
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.EnumProperty.enum_items_static`
+
+bpy.types.CyclesRenderSettings
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesRenderSettings.debug_opencl_device_type`
+* :class:`bpy.types.CyclesRenderSettings.debug_opencl_kernel_type`
+* :class:`bpy.types.CyclesRenderSettings.debug_use_cpu_avx`
+* :class:`bpy.types.CyclesRenderSettings.debug_use_cpu_avx2`
+* :class:`bpy.types.CyclesRenderSettings.debug_use_cpu_sse2`
+* :class:`bpy.types.CyclesRenderSettings.debug_use_cpu_sse3`
+* :class:`bpy.types.CyclesRenderSettings.debug_use_cpu_sse41`
+* :class:`bpy.types.CyclesRenderSettings.debug_use_opencl_debug`
+* :class:`bpy.types.CyclesRenderSettings.debug_use_qbvh`
+* :class:`bpy.types.CyclesRenderSettings.motion_blur_position`
+* :class:`bpy.types.CyclesRenderSettings.pixel_filter_type`
+* :class:`bpy.types.CyclesRenderSettings.rolling_shutter_duration`
+* :class:`bpy.types.CyclesRenderSettings.rolling_shutter_type`
+
+Removed
+^^^^^^^
+
+* **use_cache**
+
+bpy.types.RenderEngine
+----------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.RenderEngine.bake` (scene, object, pass_type, pass_filter, object_id, pixel_array, num_pixels, depth, result), *was (scene, object, pass_type, object_id, pixel_array, num_pixels, depth, result)*
+
+bpy.types.CYCLES
+----------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.CYCLES.bake` (self, scene, obj, pass_type, pass_filter, object_id, pixel_array, num_pixels, depth, result), *was (self, scene, obj, pass_type, object_id, pixel_array, num_pixels, depth, result)*
+
+bpy.types.RenderLayer
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderLayer.use_ao`
+
+bpy.types.RenderSettings
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderSettings.motion_blur_shutter_curve`
+
+Removed
+^^^^^^^
+
+* **use_free_unused_nodes**
+
+bpy.types.SceneRenderLayer
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SceneRenderLayer.use_ao`
+
+bpy.types.SculptToolCapabilities
+--------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SculptToolCapabilities.has_rake_factor`
+
+bpy.types.TextSequence
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.TextSequence.align_y`
+* :class:`bpy.types.TextSequence.wrap_width`
+
+Renamed
+^^^^^^^
+
+* **align** -> :class:`bpy.types.TextSequence.align_x`
+
+bpy.types.WipeSequence
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.WipeSequence.input_2`
+
+bpy.types.SceneSequence
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SceneSequence.use_sequence`
+
+bpy.types.SoundSequence
+-----------------------
+
+Removed
+^^^^^^^
+
+* **filepath**
+
+bpy.types.SequenceModifier
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SequenceModifier.mask_time`
+
+bpy.types.ShapeKey
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShapeKey.normals_polygon_get`
+* :class:`bpy.types.ShapeKey.normals_split_get`
+* :class:`bpy.types.ShapeKey.normals_vertex_get`
+
+bpy.types.SmokeDomainSettings
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SmokeDomainSettings.cache_file_format`
+* :class:`bpy.types.SmokeDomainSettings.data_depth`
+* :class:`bpy.types.SmokeDomainSettings.openvdb_cache_compress_type`
+
+bpy.types.SpaceGraphEditor
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceGraphEditor.cursor_position_x`
+
+bpy.types.ThemeSequenceEditor
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeSequenceEditor.text_strip`
+
+bpy.types.ThemeView3D
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeView3D.text_grease_pencil`
+* :class:`bpy.types.ThemeView3D.text_keyframe`
+
+bpy.types.ToolSettings
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ToolSettings.gpencil_sculpt`
+* :class:`bpy.types.ToolSettings.gpencil_stroke_placement_image_editor`
+* :class:`bpy.types.ToolSettings.gpencil_stroke_placement_sequencer_preview`
+* :class:`bpy.types.ToolSettings.gpencil_stroke_placement_view2d`
+* :class:`bpy.types.ToolSettings.gpencil_stroke_placement_view3d`
+* :class:`bpy.types.ToolSettings.use_gpencil_additive_drawing`
+* :class:`bpy.types.ToolSettings.use_gpencil_stroke_endpoints`
+
+Renamed
+^^^^^^^
+
+* **use_grease_pencil_sessions** -> :class:`bpy.types.ToolSettings.use_gpencil_continuous_drawing`
+
+bpy.types.UserPreferencesSystem
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesSystem.font_path_ui_mono`
+
+Removed
+^^^^^^^
+
+* **is_occlusion_query_supported**
+* **use_vertex_buffer_objects**
+
+bpy.types.UserPreferencesView
+-----------------------------
+
+Removed
+^^^^^^^
+
+* **use_gl_warn_support**
+
+2.77 to 2.78
+============
+
+bpy.types.AnimData
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.AnimData.use_tweak_mode`
+
+bpy.types.BlendData
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BlendData.cache_files`
+* :class:`bpy.types.BlendData.paint_curves`
+
+bpy.types.BlendDataActions
+--------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataActions.remove` (action, do_unlink), *was (action)*
+
+bpy.types.BlendDataArmatures
+----------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataArmatures.remove` (armature, do_unlink), *was (armature)*
+
+bpy.types.BlendDataBrushes
+--------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataBrushes.remove` (brush, do_unlink), *was (brush)*
+
+bpy.types.BlendDataCameras
+--------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataCameras.remove` (camera, do_unlink), *was (camera)*
+
+bpy.types.BlendDataCurves
+-------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataCurves.remove` (curve, do_unlink), *was (curve)*
+
+bpy.types.BlendDataFonts
+------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataFonts.remove` (vfont, do_unlink), *was (vfont)*
+
+bpy.types.BlendDataGreasePencils
+--------------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataGreasePencils.remove` (grease_pencil, do_unlink), *was (grease_pencil)*
+
+bpy.types.BlendDataGroups
+-------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataGroups.remove` (group, do_unlink), *was (group)*
+
+bpy.types.BlendDataImages
+-------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataImages.remove` (image, do_unlink), *was (image)*
+
+bpy.types.BlendDataLamps
+------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataLamps.remove` (lamp, do_unlink), *was (lamp)*
+
+bpy.types.BlendDataLattices
+---------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataLattices.remove` (lattice, do_unlink), *was (lattice)*
+
+bpy.types.BlendDataLineStyles
+-----------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataLineStyles.remove` (linestyle, do_unlink), *was (linestyle)*
+
+bpy.types.BlendDataMasks
+------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataMasks.remove` (mask, do_unlink), *was (mask)*
+
+bpy.types.BlendDataMaterials
+----------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataMaterials.remove` (material, do_unlink), *was (material)*
+
+bpy.types.BlendDataMeshes
+-------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataMeshes.remove` (mesh, do_unlink), *was (mesh)*
+
+bpy.types.BlendDataMetaBalls
+----------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataMetaBalls.remove` (metaball, do_unlink), *was (metaball)*
+
+bpy.types.BlendDataMovieClips
+-----------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataMovieClips.remove` (clip, do_unlink), *was (clip)*
+
+bpy.types.BlendDataNodeTrees
+----------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataNodeTrees.remove` (tree, do_unlink), *was (tree)*
+
+bpy.types.BlendDataObjects
+--------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataObjects.remove` (object, do_unlink), *was (object)*
+
+bpy.types.BlendDataPalettes
+---------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataPalettes.remove` (palette, do_unlink), *was (palette)*
+
+bpy.types.BlendDataParticles
+----------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataParticles.remove` (particle, do_unlink), *was (particle)*
+
+bpy.types.BlendDataScenes
+-------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataScenes.remove` (scene, do_unlink), *was (scene)*
+
+bpy.types.BlendDataSounds
+-------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataSounds.remove` (sound, do_unlink), *was (sound)*
+
+bpy.types.BlendDataSpeakers
+---------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataSpeakers.remove` (speaker, do_unlink), *was (speaker)*
+
+bpy.types.BlendDataTexts
+------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataTexts.remove` (text, do_unlink), *was (text)*
+
+bpy.types.BlendDataTextures
+---------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataTextures.remove` (texture, do_unlink), *was (texture)*
+
+bpy.types.BlendDataWorlds
+-------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.BlendDataWorlds.remove` (world, do_unlink), *was (world)*
+
+bpy.types.Bone
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Bone.bbone_curveinx`
+* :class:`bpy.types.Bone.bbone_curveiny`
+* :class:`bpy.types.Bone.bbone_curveoutx`
+* :class:`bpy.types.Bone.bbone_curveouty`
+* :class:`bpy.types.Bone.bbone_rollin`
+* :class:`bpy.types.Bone.bbone_rollout`
+* :class:`bpy.types.Bone.bbone_scalein`
+* :class:`bpy.types.Bone.bbone_scaleout`
+* :class:`bpy.types.Bone.use_endroll_as_inroll`
+
+bpy.types.CameraStereoData
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CameraStereoData.pole_merge_angle_from`
+* :class:`bpy.types.CameraStereoData.pole_merge_angle_to`
+* :class:`bpy.types.CameraStereoData.use_pole_merge`
+* :class:`bpy.types.CameraStereoData.use_spherical_stereo`
+
+bpy.types.ClothSettings
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ClothSettings.time_scale`
+* :class:`bpy.types.ClothSettings.use_dynamic_mesh`
+
+bpy.types.CopyLocationConstraint
+--------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CopyLocationConstraint.use_bbone_shape`
+
+bpy.types.CopyTransformsConstraint
+----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CopyTransformsConstraint.use_bbone_shape`
+
+bpy.types.DampedTrackConstraint
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.DampedTrackConstraint.use_bbone_shape`
+
+bpy.types.LimitDistanceConstraint
+---------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.LimitDistanceConstraint.use_bbone_shape`
+
+bpy.types.LockedTrackConstraint
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.LockedTrackConstraint.use_bbone_shape`
+
+bpy.types.PivotConstraint
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.PivotConstraint.use_bbone_shape`
+
+bpy.types.StretchToConstraint
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.StretchToConstraint.use_bbone_shape`
+
+bpy.types.TrackToConstraint
+---------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.TrackToConstraint.use_bbone_shape`
+
+bpy.types.DopeSheet
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.DopeSheet.use_datablock_sort`
+* :class:`bpy.types.DopeSheet.use_multi_word_filter`
+
+bpy.types.Driver
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Driver.use_self`
+
+bpy.types.DriverVariable
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.DriverVariable.is_name_valid`
+
+bpy.types.EditBone
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.EditBone.bbone_curveinx`
+* :class:`bpy.types.EditBone.bbone_curveiny`
+* :class:`bpy.types.EditBone.bbone_curveoutx`
+* :class:`bpy.types.EditBone.bbone_curveouty`
+* :class:`bpy.types.EditBone.bbone_rollin`
+* :class:`bpy.types.EditBone.bbone_rollout`
+* :class:`bpy.types.EditBone.bbone_scalein`
+* :class:`bpy.types.EditBone.bbone_scaleout`
+* :class:`bpy.types.EditBone.use_endroll_as_inroll`
+
+bpy.types.FCurveKeyframePoints
+------------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.FCurveKeyframePoints.insert` (frame, value, options, keyframe_type), *was (frame, value, options)*
+
+bpy.types.GPencilLayer
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPencilLayer.is_parented`
+* :class:`bpy.types.GPencilLayer.matrix_inverse`
+* :class:`bpy.types.GPencilLayer.parent`
+* :class:`bpy.types.GPencilLayer.parent_bone`
+* :class:`bpy.types.GPencilLayer.parent_type`
+* :class:`bpy.types.GPencilLayer.tint_color`
+* :class:`bpy.types.GPencilLayer.tint_factor`
+* :class:`bpy.types.GPencilLayer.unlock_color`
+
+Removed
+^^^^^^^
+
+* **color**
+* **fill_alpha**
+* **fill_color**
+* **is_fill_visible**
+* **is_stroke_visible**
+
+Renamed
+^^^^^^^
+
+* **alpha** -> :class:`bpy.types.GPencilLayer.opacity`
+* **line_width** -> :class:`bpy.types.GPencilLayer.line_change`
+
+bpy.types.GPencilSculptSettings
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPencilSculptSettings.affect_position`
+* :class:`bpy.types.GPencilSculptSettings.affect_strength`
+* :class:`bpy.types.GPencilSculptSettings.affect_thickness`
+* :class:`bpy.types.GPencilSculptSettings.selection_alpha`
+
+bpy.types.GPencilStroke
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPencilStroke.color`
+* :class:`bpy.types.GPencilStroke.colorname`
+* :class:`bpy.types.GPencilStroke.draw_cyclic`
+* :class:`bpy.types.GPencilStroke.line_width`
+* :class:`bpy.types.GPencilStroke.triangles`
+
+bpy.types.GPencilStrokePoint
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPencilStrokePoint.strength`
+
+bpy.types.GPencilStrokePoints
+-----------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.GPencilStrokePoints.add` (count, pressure, strength), *was (count)*
+
+bpy.types.GPencilStrokes
+------------------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.GPencilStrokes.new` (colorname), *was ()*
+
+bpy.types.ID
+------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ID.user_remap`
+
+bpy.types.TextCurve
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.TextCurve.align_x`
+* :class:`bpy.types.TextCurve.align_y`
+
+Removed
+^^^^^^^
+
+* **align**
+
+bpy.types.GreasePencil
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GreasePencil.palettes`
+* :class:`bpy.types.GreasePencil.show_stroke_direction`
+
+bpy.types.PointLamp
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.PointLamp.constant_coefficient`
+* :class:`bpy.types.PointLamp.linear_coefficient`
+* :class:`bpy.types.PointLamp.quadratic_coefficient`
+
+bpy.types.SpotLamp
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpotLamp.constant_coefficient`
+* :class:`bpy.types.SpotLamp.linear_coefficient`
+* :class:`bpy.types.SpotLamp.quadratic_coefficient`
+
+bpy.types.Library
+-----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Library.reload`
+
+bpy.types.Mesh
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Mesh.flip_normals`
+* :class:`bpy.types.Mesh.split_faces`
+
+bpy.types.MovieClip
+-------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MovieClip.animation_data`
+
+bpy.types.ParticleSettings
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ParticleSettings.collision_group`
+
+bpy.types.Scene
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Scene.alembic_export`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.Scene.collada_export` (filepath, apply_modifiers, export_mesh_type, selected, include_children, include_armatures, include_shapekeys, deform_bones_only, active_uv_only, include_uv_textures, include_material_textures, use_texture_copies, use_ngons, use_object_instantiation, use_blender_profile, sort_by_name, open_sim, export_transformation_type), *was (filepath, apply_modifiers, export_mesh_type, selected, include_children, include_armatures, include_shapekeys, deform_bones_only, active_uv_only, include_uv_textures, include_material_textures, use_texture_copies, use_ngons, use_object_instantiation, sort_by_name, open_sim, export_transformation_type)*
+
+bpy.types.WholeCharacter
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.WholeCharacter.doBBone`
+
+bpy.types.MeshPolygon
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MeshPolygon.flip`
+
+bpy.types.BooleanModifier
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BooleanModifier.double_threshold`
+* :class:`bpy.types.BooleanModifier.solver`
+
+bpy.types.HookModifier
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.HookModifier.matrix_inverse`
+
+bpy.types.NormalEditModifier
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.NormalEditModifier.mix_limit`
+
+bpy.types.ShrinkwrapModifier
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShrinkwrapModifier.invert_vertex_group`
+
+bpy.types.SimpleDeformModifier
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SimpleDeformModifier.invert_vertex_group`
+
+bpy.types.MovieTrackingStabilization
+------------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MovieTrackingStabilization.active_rotation_track_index`
+* :class:`bpy.types.MovieTrackingStabilization.anchor_frame`
+* :class:`bpy.types.MovieTrackingStabilization.rotation_tracks`
+* :class:`bpy.types.MovieTrackingStabilization.show_tracks_expanded`
+* :class:`bpy.types.MovieTrackingStabilization.target_position`
+* :class:`bpy.types.MovieTrackingStabilization.target_rotation`
+* :class:`bpy.types.MovieTrackingStabilization.target_scale`
+* :class:`bpy.types.MovieTrackingStabilization.use_stabilize_scale`
+
+Removed
+^^^^^^^
+
+* **rotation_track**
+
+bpy.types.MovieTrackingTrack
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MovieTrackingTrack.weight_stab`
+
+bpy.types.CompositorNodeColorBalance
+------------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CompositorNodeColorBalance.offset_basis`
+
+bpy.types.ShaderNodeTexPointDensity
+-----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ShaderNodeTexPointDensity.vertex_attribute_name`
+
+Renamed
+^^^^^^^
+
+* **color_source** -> :class:`bpy.types.ShaderNodeTexPointDensity.particle_color_source`
+* **color_source** -> :class:`bpy.types.ShaderNodeTexPointDensity.vertex_color_source`
+
+bpy.types.PointDensity
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.PointDensity.vertex_attribute_name`
+
+Renamed
+^^^^^^^
+
+* **color_source** -> :class:`bpy.types.PointDensity.particle_color_source`
+* **color_source** -> :class:`bpy.types.PointDensity.vertex_color_source`
+
+bpy.types.PoseBone
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.PoseBone.bbone_curveinx`
+* :class:`bpy.types.PoseBone.bbone_curveiny`
+* :class:`bpy.types.PoseBone.bbone_curveoutx`
+* :class:`bpy.types.PoseBone.bbone_curveouty`
+* :class:`bpy.types.PoseBone.bbone_custom_handle_end`
+* :class:`bpy.types.PoseBone.bbone_custom_handle_start`
+* :class:`bpy.types.PoseBone.bbone_rollin`
+* :class:`bpy.types.PoseBone.bbone_rollout`
+* :class:`bpy.types.PoseBone.bbone_scalein`
+* :class:`bpy.types.PoseBone.bbone_scaleout`
+* :class:`bpy.types.PoseBone.use_bbone_custom_handles`
+* :class:`bpy.types.PoseBone.use_bbone_relative_end_handle`
+* :class:`bpy.types.PoseBone.use_bbone_relative_start_handle`
+
+bpy.types.BoolProperty
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.BoolProperty.is_array`
+
+bpy.types.FloatProperty
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FloatProperty.is_array`
+
+bpy.types.IntProperty
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.IntProperty.is_array`
+
+bpy.types.CyclesMaterialSettings
+--------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesMaterialSettings.displacement_method`
+
+bpy.types.CyclesMeshSettings
+----------------------------
+
+Removed
+^^^^^^^
+
+* **dicing_rate**
+* **displacement_method**
+* **use_subdivision**
+
+bpy.types.CyclesRenderSettings
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesRenderSettings.debug_bvh_time_steps`
+* :class:`bpy.types.CyclesRenderSettings.debug_use_cuda_adaptive_compile`
+* :class:`bpy.types.CyclesRenderSettings.debug_use_hair_bvh`
+* :class:`bpy.types.CyclesRenderSettings.dicing_rate`
+* :class:`bpy.types.CyclesRenderSettings.distance_cull_margin`
+* :class:`bpy.types.CyclesRenderSettings.light_sampling_threshold`
+* :class:`bpy.types.CyclesRenderSettings.max_subdivisions`
+* :class:`bpy.types.CyclesRenderSettings.preview_dicing_rate`
+* :class:`bpy.types.CyclesRenderSettings.texture_limit`
+* :class:`bpy.types.CyclesRenderSettings.texture_limit_render`
+* :class:`bpy.types.CyclesRenderSettings.use_distance_cull`
+
+bpy.types.RenderEngine
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderEngine.active_view_get`
+* :class:`bpy.types.RenderEngine.bl_use_spherical_stereo`
+* :class:`bpy.types.RenderEngine.use_spherical_stereo`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.RenderEngine.camera_model_matrix` (camera, use_spherical_stereo, r_model_matrix), *was (camera, r_model_matrix)*
+* :class:`bpy.types.RenderEngine.camera_shift_x` (camera, use_spherical_stereo), *was (camera)*
+
+bpy.types.RenderSettings
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderSettings.use_spherical_stereo`
+* :class:`bpy.types.RenderSettings.use_stamp_labels`
+* :class:`bpy.types.RenderSettings.use_stamp_memory`
+* :class:`bpy.types.RenderSettings.use_world_space_shading`
+
+bpy.types.SceneGameData
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SceneGameData.use_glsl_environment_lighting`
+
+bpy.types.SceneGameRecastData
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SceneGameRecastData.partitioning`
+
+bpy.types.TextSequence
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.TextSequence.color`
+* :class:`bpy.types.TextSequence.shadow_color`
+
+bpy.types.SmokeDomainSettings
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SmokeDomainSettings.heat_grid`
+
+bpy.types.SoftBodySettings
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SoftBodySettings.collision_group`
+
+bpy.types.SpaceNLA
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceNLA.show_local_markers`
+
+bpy.types.ThemeDopeSheet
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeDopeSheet.keyframe_scale_factor`
+
+bpy.types.ThemeFileBrowser
+--------------------------
+
+Removed
+^^^^^^^
+
+* **active_file**
+* **active_file_text**
+* **scroll_handle**
+* **scrollbar**
+* **space_list**
+
+bpy.types.ToolSettings
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ToolSettings.curve_paint_settings`
+* :class:`bpy.types.ToolSettings.gpencil_brushes`
+* :class:`bpy.types.ToolSettings.keyframe_type`
+* :class:`bpy.types.ToolSettings.use_gpencil_draw_onback`
+
+bpy.types.UILayout
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UILayout.template_cache_file`
+
+bpy.types.UserPreferences
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferences.version`
+
+bpy.types.UserPreferencesEdit
+-----------------------------
+
+Removed
+^^^^^^^
+
+* **use_grease_pencil_smooth_stroke**
+
+bpy.types.UserPreferencesInput
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesInput.use_ndof`
+
+bpy.types.UserPreferencesSystem
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesSystem.legacy_compute_device_type`
+
+Removed
+^^^^^^^
+
+* **compute_device**
+* **compute_device_type**
+
+2.78 to 2.79
+============
+
+bpy.types.DupliObject
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.DupliObject.random_id`
+
+bpy.types.FFmpegSettings
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FFmpegSettings.constant_rate_factor`
+* :class:`bpy.types.FFmpegSettings.ffmpeg_preset`
+* :class:`bpy.types.FFmpegSettings.max_b_frames`
+* :class:`bpy.types.FFmpegSettings.use_max_b_frames`
+
+bpy.types.FieldSettings
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FieldSettings.use_gravity_falloff`
+
+bpy.types.GPencilLayer
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPencilLayer.use_ghosts_always`
+
+bpy.types.GPencilSculptSettings
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPencilSculptSettings.lockaxis`
+
+bpy.types.Header
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Header.is_extended`
+
+bpy.types.ID
+------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ID.make_local`
+
+bpy.types.Mesh
+--------------
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.Mesh.split_faces` (free_loop_normals), *was ()*
+
+bpy.types.Scene
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Scene.frame_float`
+* :class:`bpy.types.Scene.show_subframe`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.Scene.alembic_export` (filepath, frame_start, frame_end, xform_samples, geom_samples, shutter_open, shutter_close, selected_only, uvs, normals, vcolors, apply_subdiv, flatten, visible_layers_only, renderable_only, face_sets, subdiv_schema, export_hair, export_particles, compression_type, packuv, scale, triangulate, quad_method, ngon_method), *was (filepath, frame_start, frame_end, xform_samples, geom_samples, shutter_open, shutter_close, selected_only, uvs, normals, vcolors, apply_subdiv, flatten, visible_layers_only, renderable_only, face_sets, subdiv_schema, compression_type, packuv, scale)*
+* :class:`bpy.types.Scene.collada_export` (filepath, apply_modifiers, export_mesh_type, selected, include_children, include_armatures, include_shapekeys, deform_bones_only, active_uv_only, export_texture_type, use_texture_copies, triangulate, use_object_instantiation, use_blender_profile, sort_by_name, export_transformation_type, open_sim, limit_precision, keep_bind_info), *was (filepath, apply_modifiers, export_mesh_type, selected, include_children, include_armatures, include_shapekeys, deform_bones_only, active_uv_only, include_uv_textures, include_material_textures, use_texture_copies, use_ngons, use_object_instantiation, use_blender_profile, sort_by_name, open_sim, export_transformation_type)*
+
+bpy.types.Macro
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Macro.bl_undo_group`
+
+bpy.types.Menu
+--------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Menu.is_extended`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.Menu.path_menu` (self, searchpaths, operator), *was (self, searchpaths, operator, props_default, filter_ext)*
+
+bpy.types.GPENCIL_PIE_sculpt
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPENCIL_PIE_sculpt.is_extended`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.GPENCIL_PIE_sculpt.path_menu` (self, searchpaths, operator), *was (self, searchpaths, operator, props_default, filter_ext)*
+
+bpy.types.GPENCIL_PIE_settings_palette
+--------------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPENCIL_PIE_settings_palette.is_extended`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.GPENCIL_PIE_settings_palette.path_menu` (self, searchpaths, operator), *was (self, searchpaths, operator, props_default, filter_ext)*
+
+bpy.types.GPENCIL_PIE_tool_palette
+----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPENCIL_PIE_tool_palette.is_extended`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.GPENCIL_PIE_tool_palette.path_menu` (self, searchpaths, operator), *was (self, searchpaths, operator, props_default, filter_ext)*
+
+bpy.types.GPENCIL_PIE_tools_more
+--------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPENCIL_PIE_tools_more.is_extended`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.GPENCIL_PIE_tools_more.path_menu` (self, searchpaths, operator), *was (self, searchpaths, operator, props_default, filter_ext)*
+
+bpy.types.DisplaceModifier
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.DisplaceModifier.space`
+
+bpy.types.MirrorModifier
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MirrorModifier.mirror_offset_u`
+* :class:`bpy.types.MirrorModifier.mirror_offset_v`
+
+bpy.types.ScrewModifier
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ScrewModifier.merge_threshold`
+* :class:`bpy.types.ScrewModifier.use_merge_vertices`
+
+bpy.types.MotionPath
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MotionPath.color`
+* :class:`bpy.types.MotionPath.line_thickness`
+* :class:`bpy.types.MotionPath.lines`
+* :class:`bpy.types.MotionPath.use_custom_color`
+
+bpy.types.CompositorNodeBrightContrast
+--------------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CompositorNodeBrightContrast.use_premultiply`
+
+bpy.types.CompositorNodeHueSat
+------------------------------
+
+Removed
+^^^^^^^
+
+* **color_hue**
+* **color_saturation**
+* **color_value**
+
+bpy.types.CompositorNodeSwitchView
+----------------------------------
+
+Removed
+^^^^^^^
+
+* **check**
+
+bpy.types.Operator
+------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Operator.bl_undo_group`
+* :class:`bpy.types.Operator.is_repeat`
+
+bpy.types.Sculpt
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Sculpt.constant_detail_resolution`
+
+Removed
+^^^^^^^
+
+* **constant_detail**
+
+bpy.types.Panel
+---------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.Panel.is_extended`
+
+bpy.types.IMAGE_UV_sculpt
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.IMAGE_UV_sculpt.is_extended`
+
+bpy.types.IMAGE_UV_sculpt_curve
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.IMAGE_UV_sculpt_curve.is_extended`
+
+bpy.types.CyclesObjectSettings
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesObjectSettings.is_shadow_catcher`
+
+bpy.types.CyclesRenderSettings
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CyclesRenderSettings.ao_bounces`
+* :class:`bpy.types.CyclesRenderSettings.ao_bounces_render`
+* :class:`bpy.types.CyclesRenderSettings.debug_opencl_kernel_single_program`
+* :class:`bpy.types.CyclesRenderSettings.debug_opencl_mem_limit`
+* :class:`bpy.types.CyclesRenderSettings.debug_use_cpu_split_kernel`
+* :class:`bpy.types.CyclesRenderSettings.debug_use_cuda_split_kernel`
+
+bpy.types.PropertyGroupItem
+---------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.PropertyGroupItem.id`
+
+bpy.types.RenderEngine
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderEngine.add_pass`
+* :class:`bpy.types.RenderEngine.register_pass`
+* :class:`bpy.types.RenderEngine.update_render_passes`
+
+Function Arguments
+^^^^^^^^^^^^^^^^^^
+
+* :class:`bpy.types.RenderEngine.end_result` (result, cancel, highlight, do_merge_results), *was (result, cancel, do_merge_results)*
+
+bpy.types.CYCLES
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CYCLES.update_render_passes`
+
+bpy.types.RenderPass
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderPass.fullname`
+
+Removed
+^^^^^^^
+
+* **debug_type**
+* **type**
+
+bpy.types.RenderPasses
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RenderPasses.find_by_name`
+
+bpy.types.RenderSettings
+------------------------
+
+Removed
+^^^^^^^
+
+* **sequencer_gl_render**
+* **use_sequencer_gl_preview**
+
+bpy.types.RigidBodyConstraint
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RigidBodyConstraint.spring_damping_ang_x`
+* :class:`bpy.types.RigidBodyConstraint.spring_damping_ang_y`
+* :class:`bpy.types.RigidBodyConstraint.spring_damping_ang_z`
+* :class:`bpy.types.RigidBodyConstraint.spring_stiffness_ang_x`
+* :class:`bpy.types.RigidBodyConstraint.spring_stiffness_ang_y`
+* :class:`bpy.types.RigidBodyConstraint.spring_stiffness_ang_z`
+* :class:`bpy.types.RigidBodyConstraint.use_spring_ang_x`
+* :class:`bpy.types.RigidBodyConstraint.use_spring_ang_y`
+* :class:`bpy.types.RigidBodyConstraint.use_spring_ang_z`
+
+bpy.types.SceneRenderLayer
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SceneRenderLayer.cycles`
+* :class:`bpy.types.SceneRenderLayer.update_render_passes`
+
+bpy.types.SmokeDomainSettings
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SmokeDomainSettings.axis_slice_method`
+* :class:`bpy.types.SmokeDomainSettings.coba_field`
+* :class:`bpy.types.SmokeDomainSettings.color_ramp`
+* :class:`bpy.types.SmokeDomainSettings.display_thickness`
+* :class:`bpy.types.SmokeDomainSettings.draw_velocity`
+* :class:`bpy.types.SmokeDomainSettings.slice_axis`
+* :class:`bpy.types.SmokeDomainSettings.slice_depth`
+* :class:`bpy.types.SmokeDomainSettings.slice_method`
+* :class:`bpy.types.SmokeDomainSettings.slice_per_voxel`
+* :class:`bpy.types.SmokeDomainSettings.use_color_ramp`
+* :class:`bpy.types.SmokeDomainSettings.vector_draw_type`
+* :class:`bpy.types.SmokeDomainSettings.vector_scale`
+
+bpy.types.SpaceNodeEditor
+-------------------------
+
+Removed
+^^^^^^^
+
+* **show_highlight**
+
+bpy.types.SpaceView3D
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceView3D.active_layer`
+
+bpy.types.SpaceUVEditor
+-----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SpaceUVEditor.other_uv_filter`
+
+bpy.types.ThemeGraphEditor
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeGraphEditor.vertex_bevel`
+
+bpy.types.ThemeImageEditor
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeImageEditor.vertex_bevel`
+
+bpy.types.ThemeView3D
+---------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ThemeView3D.edge_bevel`
+* :class:`bpy.types.ThemeView3D.vertex_bevel`
+
+bpy.types.ToolSettings
+----------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.ToolSettings.gpencil_interpolate`
+
+bpy.types.UIList
+----------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UIList.is_extended`
+
+bpy.types.CLIP_UL_tracking_objects
+----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.CLIP_UL_tracking_objects.is_extended`
+
+bpy.types.FILEBROWSER_UL_dir
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.FILEBROWSER_UL_dir.is_extended`
+
+bpy.types.GPENCIL_UL_brush
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPENCIL_UL_brush.is_extended`
+
+bpy.types.GPENCIL_UL_layer
+--------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPENCIL_UL_layer.is_extended`
+
+bpy.types.GPENCIL_UL_palettecolor
+---------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.GPENCIL_UL_palettecolor.is_extended`
+
+bpy.types.MASK_UL_layers
+------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MASK_UL_layers.is_extended`
+
+bpy.types.MATERIAL_UL_matslots
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MATERIAL_UL_matslots.is_extended`
+
+bpy.types.MESH_UL_shape_keys
+----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MESH_UL_shape_keys.is_extended`
+
+bpy.types.MESH_UL_uvmaps_vcols
+------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MESH_UL_uvmaps_vcols.is_extended`
+
+bpy.types.MESH_UL_vgroups
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.MESH_UL_vgroups.is_extended`
+
+bpy.types.NODE_UL_interface_sockets
+-----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.NODE_UL_interface_sockets.is_extended`
+
+bpy.types.PARTICLE_UL_particle_systems
+--------------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.PARTICLE_UL_particle_systems.is_extended`
+
+bpy.types.PHYSICS_UL_dynapaint_surfaces
+---------------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.PHYSICS_UL_dynapaint_surfaces.is_extended`
+
+bpy.types.RENDERLAYER_UL_linesets
+---------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RENDERLAYER_UL_linesets.is_extended`
+
+bpy.types.RENDERLAYER_UL_renderlayers
+-------------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RENDERLAYER_UL_renderlayers.is_extended`
+
+bpy.types.RENDERLAYER_UL_renderviews
+------------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.RENDERLAYER_UL_renderviews.is_extended`
+
+bpy.types.SCENE_UL_keying_set_paths
+-----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.SCENE_UL_keying_set_paths.is_extended`
+
+bpy.types.TEXTURE_UL_texpaintslots
+----------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.TEXTURE_UL_texpaintslots.is_extended`
+
+bpy.types.TEXTURE_UL_texslots
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.TEXTURE_UL_texslots.is_extended`
+
+bpy.types.UI_UL_list
+--------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UI_UL_list.is_extended`
+
+bpy.types.UserPreferences
+-------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferences.app_template`
+
+bpy.types.UserPreferencesSystem
+-------------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesSystem.use_select_pick_depth`
+
+Removed
+^^^^^^^
+
+* **use_textured_fonts**
+* **virtual_pixel_mode**
+
+bpy.types.UserPreferencesView
+-----------------------------
+
+Added
+^^^^^
+
+* :class:`bpy.types.UserPreferencesView.ui_line_width`
+* :class:`bpy.types.UserPreferencesView.ui_scale`
+* :class:`bpy.types.UserPreferencesView.use_cursor_lock_adjust`
diff --git a/doc/python_api/sphinx_doc_gen.py b/doc/python_api/sphinx_doc_gen.py
index 3b0e8f52c83..08c3e729ed9 100644
--- a/doc/python_api/sphinx_doc_gen.py
+++ b/doc/python_api/sphinx_doc_gen.py
@@ -1010,9 +1010,9 @@ def pymodule2sphinx(basepath, module_name, module, title):
 context_type_map = {
     "active_base": ("ObjectBase", False),
     "active_bone": ("EditBone", False),
+    "active_gpencil_brush": ("GPencilSculptBrush", False),
     "active_gpencil_frame": ("GreasePencilLayer", True),
     "active_gpencil_layer": ("GPencilLayer", True),
-    "active_gpencil_brush": ("GPencilSculptBrush", False),
     "active_gpencil_palette": ("GPencilPalette", True),
     "active_gpencil_palettecolor": ("GPencilPaletteColor", True),
     "active_node": ("Node", False),
@@ -1063,6 +1063,7 @@ context_type_map = {
     "selected_bones": ("EditBone", True),
     "selected_editable_bases": ("ObjectBase", True),
     "selected_editable_bones": ("EditBone", True),
+    "selected_editable_fcurves": ("FCurce", True),
     "selected_editable_objects": ("Object", True),
     "selected_editable_sequences": ("Sequence", True),
     "selected_nodes": ("Node", True),
@@ -1639,6 +1640,11 @@ def write_sphinx_conf_py(basepath):
     fw("version = '%s - API'\n" % BLENDER_VERSION_DOTS)
     fw("release = '%s - API'\n" % BLENDER_VERSION_DOTS)
 
+    # Quiet file not in table-of-contents warnings.
+    fw("exclude_patterns = [\n")
+    fw("    'include__bmesh.rst',\n")
+    fw("]\n\n")
+
     if ARGS.sphinx_theme != 'default':
         fw("html_theme = '%s'\n" % ARGS.sphinx_theme)
 
@@ -1659,6 +1665,24 @@ def write_sphinx_conf_py(basepath):
     fw("}\n\n")
 
     fw("latex_documents = [ ('contents', 'contents.tex', 'Blender Index', 'Blender Foundation', 'manual'), ]\n")
+
+    # Workaround for useless links leading to compile errors
+    # See https://github.com/sphinx-doc/sphinx/issues/3866
+    fw(r"""
+from sphinx.domains.python import PythonDomain
+
+class PatchedPythonDomain(PythonDomain):
+    def resolve_xref(self, env, fromdocname, builder, typ, target, node, contnode):
+        if 'refspecific' in node:
+            del node['refspecific']
+        return super(PatchedPythonDomain, self).resolve_xref(
+            env, fromdocname, builder, typ, target, node, contnode)
+
+def setup(sphinx):
+    sphinx.override_domain(PatchedPythonDomain)
+""")
+    # end workaround
+
     file.close()
 
 
@@ -1697,9 +1721,6 @@ def write_rst_contents(basepath):
         for info, info_desc in INFO_DOCS:
             fw("   %s <%s>\n\n" % (info_desc, info))
         fw("\n")
-        fw("- :ref:`Blender/Python Add-on Tutorial: a step by step guide on")
-        fw(" how to write an add-on from scratch <blender_manual:advanced_scripting_addon_tutorial>`\n")
-        fw("\n")
 
     fw(title_string("Application Modules", "=", double=True))
     fw(".. toctree::\n")
diff --git a/extern/carve/carve-capi.cc b/extern/carve/carve-capi.cc
index 5648977ad27..d6666a52c10 100644
--- a/extern/carve/carve-capi.cc
+++ b/extern/carve/carve-capi.cc
@@ -568,6 +568,22 @@ void cleanupFaceEdgeAttrsCallback(const MeshSet<3> *left,
 	                     &descr->orig_face_edge_mapping);
 }
 
+void copyVertexAttrsCallback(const carve::mesh::MeshSet<3>::vertex_t *orig_vert,
+                             const carve::mesh::MeshSet<3>::vertex_t *new_vert,
+                             void *descr_v)
+{
+	CarveMeshDescr *descr = (CarveMeshDescr *) descr_v;
+	if (!descr->orig_vert_mapping.hasAttribute(orig_vert)) {
+		return;
+	}
+	if (descr->orig_vert_mapping.hasAttribute(new_vert)) {
+		return;
+	}
+	OrigIndex attr = descr->orig_vert_mapping.getAttribute(orig_vert);
+	descr->orig_vert_mapping.setAttribute(new_vert, attr);
+	descr->orig_vert_mapping.removeAttribute(orig_vert);
+}
+
 }  // namespace
 
 CarveMeshDescr *carve_addMesh(struct ImportMeshData *import_data,
@@ -751,6 +767,7 @@ bool carve_performBooleanOperation(CarveMeshDescr *left_mesh,
 		// done properly. The only way to make such situations working is to
 		// union intersecting meshes of the same operand.
 		carve_unionIntersections(&csg, &left, &right,
+		                         copyVertexAttrsCallback,
 		                         cleanupFaceEdgeAttrsCallback,
 		                         (void *) output_descr);
 
diff --git a/extern/carve/carve-util.cc b/extern/carve/carve-util.cc
index 0dff1deb750..78997c72e71 100644
--- a/extern/carve/carve-util.cc
+++ b/extern/carve/carve-util.cc
@@ -141,6 +141,11 @@ void carve_getRescaleMinMax(const MeshSet<3> *left,
 
 namespace {
 
+struct UnionIntersectionContext {
+	VertexAttrsCallback vertex_attr_callback;
+	void *user_data;
+};
+
 void copyMeshes(const std::vector<MeshSet<3>::mesh_t*> &meshes,
                 std::vector<MeshSet<3>::mesh_t*> *new_meshes)
 {
@@ -154,24 +159,73 @@ void copyMeshes(const std::vector<MeshSet<3>::mesh_t*> &meshes,
 	}
 }
 
-MeshSet<3> *meshSetFromMeshes(const std::vector<MeshSet<3>::mesh_t*> &meshes)
+struct NewMeshMapping {
+	std::map<const MeshSet<3>::edge_t*, MeshSet<3>::vertex_t*> orig_edge_vert;
+};
+
+void prepareNewMeshMapping(const std::vector<MeshSet<3>::mesh_t*> &meshes,
+                           NewMeshMapping *mapping)
 {
-	std::vector<MeshSet<3>::mesh_t*> new_meshes;
+	for (size_t m = 0; m < meshes.size(); ++m) {
+		MeshSet<3>::mesh_t *mesh = meshes[m];
+		for (size_t f = 0; f < mesh->faces.size(); ++f) {
+			MeshSet<3>::face_t *face = mesh->faces[f];
+			MeshSet<3>::edge_t *edge = face->edge;
+			do {
+				mapping->orig_edge_vert[edge] = edge->vert;
+				edge = edge->next;
+			} while (edge != face->edge);
+		}
+	}
+}
 
-	copyMeshes(meshes, &new_meshes);
+void runNewMeshSetHooks(UnionIntersectionContext *ctx,
+                        NewMeshMapping *mapping,
+                        MeshSet<3> *mesh_set)
+{
+	for (size_t m = 0; m < mesh_set->meshes.size(); ++m) {
+		MeshSet<3>::mesh_t *mesh = mesh_set->meshes[m];
+		for (size_t f = 0; f < mesh->faces.size(); ++f) {
+			MeshSet<3>::face_t *face = mesh->faces[f];
+			MeshSet<3>::edge_t *edge = face->edge;
+			do {
+				const MeshSet<3>::vertex_t *orig_vert = mapping->orig_edge_vert[edge];
+				const MeshSet<3>::vertex_t *new_vert = edge->vert;
+				ctx->vertex_attr_callback(orig_vert, new_vert, ctx->user_data);
+				edge = edge->next;
+			} while (edge != face->edge);
+		}
+	}
+}
 
-	return new MeshSet<3>(new_meshes);
+MeshSet<3> *newMeshSetFromMeshesWithAttrs(
+    UnionIntersectionContext *ctx,
+    std::vector<MeshSet<3>::mesh_t*> &meshes)
+{
+	NewMeshMapping mapping;
+	prepareNewMeshMapping(meshes, &mapping);
+	MeshSet<3> *mesh_set = new MeshSet<3>(meshes);
+	runNewMeshSetHooks(ctx, &mapping, mesh_set);
+	return mesh_set;
 }
 
-MeshSet<3> *meshSetFromTwoMeshes(const std::vector<MeshSet<3>::mesh_t*> &left_meshes,
-                                 const std::vector<MeshSet<3>::mesh_t*> &right_meshes)
+
+MeshSet<3> *meshSetFromMeshes(UnionIntersectionContext *ctx,
+                              const std::vector<MeshSet<3>::mesh_t*> &meshes)
 {
 	std::vector<MeshSet<3>::mesh_t*> new_meshes;
+	copyMeshes(meshes, &new_meshes);
+	return newMeshSetFromMeshesWithAttrs(ctx, new_meshes);
+}
 
+MeshSet<3> *meshSetFromTwoMeshes(UnionIntersectionContext *ctx,
+                                 const std::vector<MeshSet<3>::mesh_t*> &left_meshes,
+                                 const std::vector<MeshSet<3>::mesh_t*> &right_meshes)
+{
+	std::vector<MeshSet<3>::mesh_t*> new_meshes;
 	copyMeshes(left_meshes, &new_meshes);
 	copyMeshes(right_meshes, &new_meshes);
-
-	return new MeshSet<3>(new_meshes);
+	return newMeshSetFromMeshesWithAttrs(ctx, new_meshes);
 }
 
 bool checkEdgeFaceIntersections_do(Intersections &intersections,
@@ -349,7 +403,8 @@ void getIntersectedOperandMeshes(std::vector<MeshSet<3>::mesh_t*> *meshes,
 	}
 }
 
-MeshSet<3> *getIntersectedOperand(std::vector<MeshSet<3>::mesh_t*> *meshes,
+MeshSet<3> *getIntersectedOperand(UnionIntersectionContext *ctx,
+                                  std::vector<MeshSet<3>::mesh_t*> *meshes,
                                   const MeshSet<3>::aabb_t &otherAABB,
                                   RTreeCache *rtree_cache,
                                   IntersectCache *intersect_cache)
@@ -360,13 +415,14 @@ MeshSet<3> *getIntersectedOperand(std::vector<MeshSet<3>::mesh_t*> *meshes,
 	if (operandMeshes.size() == 0)
 		return NULL;
 
-	return meshSetFromMeshes(operandMeshes);
+	return meshSetFromMeshes(ctx, operandMeshes);
 }
 
 MeshSet<3> *unionIntersectingMeshes(carve::csg::CSG *csg,
                                     MeshSet<3> *poly,
                                     const MeshSet<3> *other_poly,
                                     const MeshSet<3>::aabb_t &otherAABB,
+                                    VertexAttrsCallback vertex_attr_callback,
                                     UnionIntersectionsCallback callback,
                                     void *user_data)
 {
@@ -380,7 +436,12 @@ MeshSet<3> *unionIntersectingMeshes(carve::csg::CSG *csg,
 	RTreeCache rtree_cache;
 	IntersectCache intersect_cache;
 
-	MeshSet<3> *left = getIntersectedOperand(&orig_meshes,
+	UnionIntersectionContext ctx;
+	ctx.vertex_attr_callback = vertex_attr_callback;
+	ctx.user_data = user_data;
+
+	MeshSet<3> *left = getIntersectedOperand(&ctx,
+	                                         &orig_meshes,
 	                                         otherAABB,
 	                                         &rtree_cache,
 	                                         &intersect_cache);
@@ -391,7 +452,8 @@ MeshSet<3> *unionIntersectingMeshes(carve::csg::CSG *csg,
 	}
 
 	while (orig_meshes.size()) {
-		MeshSet<3> *right = getIntersectedOperand(&orig_meshes,
+		MeshSet<3> *right = getIntersectedOperand(&ctx,
+		                                          &orig_meshes,
 		                                          otherAABB,
 		                                          &rtree_cache,
 		                                          &intersect_cache);
@@ -422,7 +484,9 @@ MeshSet<3> *unionIntersectingMeshes(carve::csg::CSG *csg,
 		catch (carve::exception e) {
 			std::cerr << "CSG failed, exception " << e.str() << std::endl;
 
-			MeshSet<3> *result = meshSetFromTwoMeshes(left->meshes, right->meshes);
+			MeshSet<3> *result = meshSetFromTwoMeshes(&ctx,
+			                                          left->meshes,
+			                                          right->meshes);
 
 			callback(result, other_poly, user_data);
 
@@ -448,7 +512,9 @@ MeshSet<3> *unionIntersectingMeshes(carve::csg::CSG *csg,
 
 	// Append all meshes which doesn't have intersection with another operand as-is.
 	if (orig_meshes.size()) {
-		MeshSet<3> *result = meshSetFromTwoMeshes(left->meshes, orig_meshes);
+		MeshSet<3> *result = meshSetFromTwoMeshes(&ctx,
+		                                          left->meshes,
+		                                          orig_meshes);
 
 		delete left;
 		left = result;
@@ -464,6 +530,7 @@ MeshSet<3> *unionIntersectingMeshes(carve::csg::CSG *csg,
 void carve_unionIntersections(carve::csg::CSG *csg,
                               MeshSet<3> **left_r,
                               MeshSet<3> **right_r,
+                              VertexAttrsCallback vertex_attr_callback,
                               UnionIntersectionsCallback callback,
                               void *user_data)
 {
@@ -477,9 +544,9 @@ void carve_unionIntersections(carve::csg::CSG *csg,
 	MeshSet<3>::aabb_t rightAABB = right->getAABB();;
 
 	left = unionIntersectingMeshes(csg, left, right, rightAABB,
-	                               callback, user_data);
+	                               vertex_attr_callback, callback, user_data);
 	right = unionIntersectingMeshes(csg, right, left, leftAABB,
-	                                callback, user_data);
+	                                vertex_attr_callback, callback, user_data);
 
 	if (left != *left_r) {
 		delete *left_r;
diff --git a/extern/carve/carve-util.h b/extern/carve/carve-util.h
index 3edf1bb1c02..e8f62cd2751 100644
--- a/extern/carve/carve-util.h
+++ b/extern/carve/carve-util.h
@@ -70,6 +70,10 @@ void carve_getRescaleMinMax(const carve::mesh::MeshSet<3> *left,
                             carve::geom3d::Vector *min,
                             carve::geom3d::Vector *max);
 
+typedef void (*VertexAttrsCallback) (const carve::mesh::MeshSet<3>::vertex_t *orig_vert,
+                                     const carve::mesh::MeshSet<3>::vertex_t *new_vert,
+                                     void *userdata);
+
 typedef void (*UnionIntersectionsCallback) (const carve::mesh::MeshSet<3> *left,
                                             const carve::mesh::MeshSet<3> *right,
                                             void *userdata);
@@ -77,6 +81,7 @@ typedef void (*UnionIntersectionsCallback) (const carve::mesh::MeshSet<3> *left,
 void carve_unionIntersections(carve::csg::CSG *csg,
                               carve::mesh::MeshSet<3> **left_r,
                               carve::mesh::MeshSet<3> **right_r,
+                              VertexAttrsCallback vertex_attr_callback,
                               UnionIntersectionsCallback callback,
                               void *user_data);
 
@@ -148,6 +153,13 @@ namespace carve {
 			void setAttribute(const meshset_t::vertex_t *v, const attr_t &attr) {
 				attrs[v] = attr;
 			}
+
+			void removeAttribute(const meshset_t::vertex_t *v) {
+				typename attrmap_t::iterator it = attrs.find(v);
+				if (it != attrs.end()) {
+					attrs.erase(it);
+				}
+			}
 		};
 
 		template<typename attr_t>
diff --git a/extern/cuew/README.blender b/extern/cuew/README.blender
index 7b77935d750..a53a927c25f 100644
--- a/extern/cuew/README.blender
+++ b/extern/cuew/README.blender
@@ -1,5 +1,5 @@
 Project: Cuda Wrangler
 URL: https://github.com/CudaWrangler/cuew
 License: Apache 2.0
-Upstream version: 63d2a0f
+Upstream version: cbf465b
 Local modifications: None
diff --git a/extern/cuew/include/cuew.h b/extern/cuew/include/cuew.h
index 4cce29d38ab..0eace96bc3f 100644
--- a/extern/cuew/include/cuew.h
+++ b/extern/cuew/include/cuew.h
@@ -27,7 +27,7 @@ extern "C" {
 #define CUEW_VERSION_MAJOR 1
 #define CUEW_VERSION_MINOR 2
 
-#define CUDA_VERSION 7050
+#define CUDA_VERSION 8000
 #define CU_IPC_HANDLE_SIZE 64
 #define CU_STREAM_LEGACY ((CUstream)0x1)
 #define CU_STREAM_PER_THREAD ((CUstream)0x2)
@@ -51,6 +51,8 @@ extern "C" {
 #define CU_LAUNCH_PARAM_BUFFER_POINTER ((void*)0x01)
 #define CU_LAUNCH_PARAM_BUFFER_SIZE ((void*)0x02)
 #define CU_PARAM_TR_DEFAULT -1
+#define CU_DEVICE_CPU ((CUdevice)-1)
+#define CU_DEVICE_INVALID ((CUdevice)-2)
 
 /* Functions which changed 3.1 -> 3.2 for 64 bit stuff,
  * the cuda library has both the old ones for compatibility and new
@@ -114,12 +116,30 @@ extern "C" {
 #define cuGLGetDevices cuGLGetDevices_v2
 
 /* Types. */
+#ifdef _MSC_VER
+typedef unsigned __int32 cuuint32_t;
+typedef unsigned __int64 cuuint64_t;
+#else
+#include <stdint.h>
+typedef uint32_t cuuint32_t;
+typedef uint64_t cuuint64_t;
+#endif
+
 #if defined(__x86_64) || defined(AMD64) || defined(_M_AMD64) || defined (__aarch64__)
 typedef unsigned long long CUdeviceptr;
 #else
 typedef unsigned int CUdeviceptr;
 #endif
 
+
+#ifdef _WIN32
+#  define CUDAAPI __stdcall
+#  define CUDA_CB __stdcall
+#else
+#  define CUDAAPI
+#  define CUDA_CB
+#endif
+
 typedef int CUdevice;
 typedef struct CUctx_st* CUcontext;
 typedef struct CUmod_st* CUmodule;
@@ -180,6 +200,53 @@ typedef enum CUevent_flags_enum {
   CU_EVENT_INTERPROCESS = 0x4,
 } CUevent_flags;
 
+typedef enum CUstreamWaitValue_flags_enum {
+  CU_STREAM_WAIT_VALUE_GEQ = 0x0,
+  CU_STREAM_WAIT_VALUE_EQ = 0x1,
+  CU_STREAM_WAIT_VALUE_AND = 0x2,
+  CU_STREAM_WAIT_VALUE_FLUSH = (1 << 30),
+} CUstreamWaitValue_flags;
+
+typedef enum CUstreamWriteValue_flags_enum {
+  CU_STREAM_WRITE_VALUE_DEFAULT = 0x0,
+  CU_STREAM_WRITE_VALUE_NO_MEMORY_BARRIER = 0x1,
+} CUstreamWriteValue_flags;
+
+typedef enum CUstreamBatchMemOpType_enum {
+  CU_STREAM_MEM_OP_WAIT_VALUE_32 = 1,
+  CU_STREAM_MEM_OP_WRITE_VALUE_32 = 2,
+  CU_STREAM_MEM_OP_FLUSH_REMOTE_WRITES = 3,
+} CUstreamBatchMemOpType;
+
+typedef union CUstreamBatchMemOpParams_union {
+  CUstreamBatchMemOpType operation;
+  struct CUstreamMemOpWaitValueParams_st {
+    CUstreamBatchMemOpType operation;
+    CUdeviceptr address;
+    union {
+      cuuint32_t value;
+      cuuint64_t pad;
+    };
+    unsigned int flags;
+    CUdeviceptr alias;
+  } waitValue;
+  struct CUstreamMemOpWriteValueParams_st {
+    CUstreamBatchMemOpType operation;
+    CUdeviceptr address;
+    union {
+      cuuint32_t value;
+      cuuint64_t pad;
+    };
+    unsigned int flags;
+    CUdeviceptr alias;
+  } writeValue;
+  struct CUstreamMemOpFlushRemoteWritesParams_st {
+    CUstreamBatchMemOpType operation;
+    unsigned int flags;
+  } flushRemoteWrites;
+  cuuint64_t pad[6];
+} CUstreamBatchMemOpParams;
+
 typedef enum CUoccupancy_flags_enum {
   CU_OCCUPANCY_DEFAULT = 0x0,
   CU_OCCUPANCY_DISABLE_CACHING_OVERRIDE = 0x1,
@@ -299,6 +366,12 @@ typedef enum CUdevice_attribute_enum {
   CU_DEVICE_ATTRIBUTE_MANAGED_MEMORY = 83,
   CU_DEVICE_ATTRIBUTE_MULTI_GPU_BOARD = 84,
   CU_DEVICE_ATTRIBUTE_MULTI_GPU_BOARD_GROUP_ID = 85,
+  CU_DEVICE_ATTRIBUTE_HOST_NATIVE_ATOMIC_SUPPORTED = 86,
+  CU_DEVICE_ATTRIBUTE_SINGLE_TO_DOUBLE_PRECISION_PERF_RATIO = 87,
+  CU_DEVICE_ATTRIBUTE_PAGEABLE_MEMORY_ACCESS = 88,
+  CU_DEVICE_ATTRIBUTE_CONCURRENT_MANAGED_ACCESS = 89,
+  CU_DEVICE_ATTRIBUTE_COMPUTE_PREEMPTION_SUPPORTED = 90,
+  CU_DEVICE_ATTRIBUTE_CAN_USE_HOST_POINTER_FOR_REGISTERED_MEM = 91,
   CU_DEVICE_ATTRIBUTE_MAX,
 } CUdevice_attribute;
 
@@ -360,11 +433,26 @@ typedef enum CUmemorytype_enum {
 
 typedef enum CUcomputemode_enum {
   CU_COMPUTEMODE_DEFAULT = 0,
-  CU_COMPUTEMODE_EXCLUSIVE = 1,
   CU_COMPUTEMODE_PROHIBITED = 2,
   CU_COMPUTEMODE_EXCLUSIVE_PROCESS = 3,
 } CUcomputemode;
 
+typedef enum CUmem_advise_enum {
+  CU_MEM_ADVISE_SET_READ_MOSTLY = 1,
+  CU_MEM_ADVISE_UNSET_READ_MOSTLY = 2,
+  CU_MEM_ADVISE_SET_PREFERRED_LOCATION = 3,
+  CU_MEM_ADVISE_UNSET_PREFERRED_LOCATION = 4,
+  CU_MEM_ADVISE_SET_ACCESSED_BY = 5,
+  CU_MEM_ADVISE_UNSET_ACCESSED_BY = 6,
+} CUmem_advise;
+
+typedef enum CUmem_range_attribute_enum {
+  CU_MEM_RANGE_ATTRIBUTE_READ_MOSTLY = 1,
+  CU_MEM_RANGE_ATTRIBUTE_PREFERRED_LOCATION = 2,
+  CU_MEM_RANGE_ATTRIBUTE_ACCESSED_BY = 3,
+  CU_MEM_RANGE_ATTRIBUTE_LAST_PREFETCH_LOCATION = 4,
+} CUmem_range_attribute;
+
 typedef enum CUjit_option_enum {
   CU_JIT_MAX_REGISTERS = 0,
   CU_JIT_THREADS_PER_BLOCK,
@@ -381,6 +469,8 @@ typedef enum CUjit_option_enum {
   CU_JIT_LOG_VERBOSE,
   CU_JIT_GENERATE_LINE_INFO,
   CU_JIT_CACHE_MODE,
+  CU_JIT_NEW_SM3X_OPT,
+  CU_JIT_FAST_COMPILE,
   CU_JIT_NUM_OPTIONS,
 } CUjit_option;
 
@@ -397,6 +487,10 @@ typedef enum CUjit_target_enum {
   CU_TARGET_COMPUTE_37 = 37,
   CU_TARGET_COMPUTE_50 = 50,
   CU_TARGET_COMPUTE_52 = 52,
+  CU_TARGET_COMPUTE_53 = 53,
+  CU_TARGET_COMPUTE_60 = 60,
+  CU_TARGET_COMPUTE_61 = 61,
+  CU_TARGET_COMPUTE_62 = 62,
 } CUjit_target;
 
 typedef enum CUjit_fallback_enum {
@@ -490,6 +584,7 @@ typedef enum cudaError_enum {
   CUDA_ERROR_PEER_ACCESS_UNSUPPORTED = 217,
   CUDA_ERROR_INVALID_PTX = 218,
   CUDA_ERROR_INVALID_GRAPHICS_CONTEXT = 219,
+  CUDA_ERROR_NVLINK_UNCORRECTABLE = 220,
   CUDA_ERROR_INVALID_SOURCE = 300,
   CUDA_ERROR_FILE_NOT_FOUND = 301,
   CUDA_ERROR_SHARED_OBJECT_SYMBOL_NOT_FOUND = 302,
@@ -521,8 +616,14 @@ typedef enum cudaError_enum {
   CUDA_ERROR_UNKNOWN = 999,
 } CUresult;
 
-typedef void* CUstreamCallback;
-typedef size_t* CUoccupancyB2DSize;
+typedef enum CUdevice_P2PAttribute_enum {
+  CU_DEVICE_P2P_ATTRIBUTE_PERFORMANCE_RANK = 0x01,
+  CU_DEVICE_P2P_ATTRIBUTE_ACCESS_SUPPORTED = 0x02,
+  CU_DEVICE_P2P_ATTRIBUTE_NATIVE_ATOMIC_SUPPORTED = 0x03,
+} CUdevice_P2PAttribute;
+
+typedef void (CUDA_CB *CUstreamCallback)(CUstream hStream, CUresult status, void* userData);
+typedef size_t (CUDA_CB *CUoccupancyB2DSize)(int blockSize);
 
 typedef struct CUDA_MEMCPY2D_st {
   size_t srcXInBytes;
@@ -654,7 +755,8 @@ typedef struct CUDA_TEXTURE_DESC_st {
   float mipmapLevelBias;
   float minMipmapLevelClamp;
   float maxMipmapLevelClamp;
-  int reserved[16];
+  float borderColor[4];
+  int reserved[12];
 } CUDA_TEXTURE_DESC;
 
 typedef enum CUresourceViewFormat_enum {
@@ -736,21 +838,16 @@ typedef enum  {
   NVRTC_ERROR_INVALID_OPTION = 5,
   NVRTC_ERROR_COMPILATION = 6,
   NVRTC_ERROR_BUILTIN_OPERATION_FAILURE = 7,
+  NVRTC_ERROR_NO_NAME_EXPRESSIONS_AFTER_COMPILATION = 8,
+  NVRTC_ERROR_NO_LOWERED_NAMES_BEFORE_COMPILATION = 9,
+  NVRTC_ERROR_NAME_EXPRESSION_NOT_VALID = 10,
+  NVRTC_ERROR_INTERNAL_ERROR = 11,
 } nvrtcResult;
 
 typedef struct _nvrtcProgram* nvrtcProgram;
-
-#ifdef _WIN32
-#  define CUDAAPI __stdcall
-#  define CUDA_CB __stdcall
-#else
-#  define CUDAAPI
-#  define CUDA_CB
-#endif
-
 /* Function types. */
-typedef CUresult CUDAAPI tcuGetErrorString(CUresult error, const char* pStr);
-typedef CUresult CUDAAPI tcuGetErrorName(CUresult error, const char* pStr);
+typedef CUresult CUDAAPI tcuGetErrorString(CUresult error, const char** pStr);
+typedef CUresult CUDAAPI tcuGetErrorName(CUresult error, const char** pStr);
 typedef CUresult CUDAAPI tcuInit(unsigned int Flags);
 typedef CUresult CUDAAPI tcuDriverGetVersion(int* driverVersion);
 typedef CUresult CUDAAPI tcuDeviceGet(CUdevice* device, int ordinal);
@@ -786,26 +883,26 @@ typedef CUresult CUDAAPI tcuCtxAttach(CUcontext* pctx, unsigned int flags);
 typedef CUresult CUDAAPI tcuCtxDetach(CUcontext ctx);
 typedef CUresult CUDAAPI tcuModuleLoad(CUmodule* module, const char* fname);
 typedef CUresult CUDAAPI tcuModuleLoadData(CUmodule* module, const void* image);
-typedef CUresult CUDAAPI tcuModuleLoadDataEx(CUmodule* module, const void* image, unsigned int numOptions, CUjit_option* options, void* optionValues);
+typedef CUresult CUDAAPI tcuModuleLoadDataEx(CUmodule* module, const void* image, unsigned int numOptions, CUjit_option* options, void** optionValues);
 typedef CUresult CUDAAPI tcuModuleLoadFatBinary(CUmodule* module, const void* fatCubin);
 typedef CUresult CUDAAPI tcuModuleUnload(CUmodule hmod);
 typedef CUresult CUDAAPI tcuModuleGetFunction(CUfunction* hfunc, CUmodule hmod, const char* name);
 typedef CUresult CUDAAPI tcuModuleGetGlobal_v2(CUdeviceptr* dptr, size_t* bytes, CUmodule hmod, const char* name);
 typedef CUresult CUDAAPI tcuModuleGetTexRef(CUtexref* pTexRef, CUmodule hmod, const char* name);
 typedef CUresult CUDAAPI tcuModuleGetSurfRef(CUsurfref* pSurfRef, CUmodule hmod, const char* name);
-typedef CUresult CUDAAPI tcuLinkCreate_v2(unsigned int numOptions, CUjit_option* options, void* optionValues, CUlinkState* stateOut);
-typedef CUresult CUDAAPI tcuLinkAddData_v2(CUlinkState state, CUjitInputType type, void* data, size_t size, const char* name, unsigned int numOptions, CUjit_option* options, void* optionValues);
-typedef CUresult CUDAAPI tcuLinkAddFile_v2(CUlinkState state, CUjitInputType type, const char* path, unsigned int numOptions, CUjit_option* options, void* optionValues);
-typedef CUresult CUDAAPI tcuLinkComplete(CUlinkState state, void* cubinOut, size_t* sizeOut);
+typedef CUresult CUDAAPI tcuLinkCreate_v2(unsigned int numOptions, CUjit_option* options, void** optionValues, CUlinkState* stateOut);
+typedef CUresult CUDAAPI tcuLinkAddData_v2(CUlinkState state, CUjitInputType type, void* data, size_t size, const char* name, unsigned int numOptions, CUjit_option* options, void** optionValues);
+typedef CUresult CUDAAPI tcuLinkAddFile_v2(CUlinkState state, CUjitInputType type, const char* path, unsigned int numOptions, CUjit_option* options, void** optionValues);
+typedef CUresult CUDAAPI tcuLinkComplete(CUlinkState state, void** cubinOut, size_t* sizeOut);
 typedef CUresult CUDAAPI tcuLinkDestroy(CUlinkState state);
 typedef CUresult CUDAAPI tcuMemGetInfo_v2(size_t* free, size_t* total);
 typedef CUresult CUDAAPI tcuMemAlloc_v2(CUdeviceptr* dptr, size_t bytesize);
 typedef CUresult CUDAAPI tcuMemAllocPitch_v2(CUdeviceptr* dptr, size_t* pPitch, size_t WidthInBytes, size_t Height, unsigned int ElementSizeBytes);
 typedef CUresult CUDAAPI tcuMemFree_v2(CUdeviceptr dptr);
 typedef CUresult CUDAAPI tcuMemGetAddressRange_v2(CUdeviceptr* pbase, size_t* psize, CUdeviceptr dptr);
-typedef CUresult CUDAAPI tcuMemAllocHost_v2(void* pp, size_t bytesize);
+typedef CUresult CUDAAPI tcuMemAllocHost_v2(void** pp, size_t bytesize);
 typedef CUresult CUDAAPI tcuMemFreeHost(void* p);
-typedef CUresult CUDAAPI tcuMemHostAlloc(void* pp, size_t bytesize, unsigned int Flags);
+typedef CUresult CUDAAPI tcuMemHostAlloc(void** pp, size_t bytesize, unsigned int Flags);
 typedef CUresult CUDAAPI tcuMemHostGetDevicePointer_v2(CUdeviceptr* pdptr, void* p, unsigned int Flags);
 typedef CUresult CUDAAPI tcuMemHostGetFlags(unsigned int* pFlags, void* p);
 typedef CUresult CUDAAPI tcuMemAllocManaged(CUdeviceptr* dptr, size_t bytesize, unsigned int flags);
@@ -863,8 +960,12 @@ typedef CUresult CUDAAPI tcuMipmappedArrayCreate(CUmipmappedArray* pHandle, cons
 typedef CUresult CUDAAPI tcuMipmappedArrayGetLevel(CUarray* pLevelArray, CUmipmappedArray hMipmappedArray, unsigned int level);
 typedef CUresult CUDAAPI tcuMipmappedArrayDestroy(CUmipmappedArray hMipmappedArray);
 typedef CUresult CUDAAPI tcuPointerGetAttribute(void* data, CUpointer_attribute attribute, CUdeviceptr ptr);
+typedef CUresult CUDAAPI tcuMemPrefetchAsync(CUdeviceptr devPtr, size_t count, CUdevice dstDevice, CUstream hStream);
+typedef CUresult CUDAAPI tcuMemAdvise(CUdeviceptr devPtr, size_t count, CUmem_advise advice, CUdevice device);
+typedef CUresult CUDAAPI tcuMemRangeGetAttribute(void* data, size_t dataSize, CUmem_range_attribute attribute, CUdeviceptr devPtr, size_t count);
+typedef CUresult CUDAAPI tcuMemRangeGetAttributes(void** data, size_t* dataSizes, CUmem_range_attribute* attributes, size_t numAttributes, CUdeviceptr devPtr, size_t count);
 typedef CUresult CUDAAPI tcuPointerSetAttribute(const void* value, CUpointer_attribute attribute, CUdeviceptr ptr);
-typedef CUresult CUDAAPI tcuPointerGetAttributes(unsigned int numAttributes, CUpointer_attribute* attributes, void* data, CUdeviceptr ptr);
+typedef CUresult CUDAAPI tcuPointerGetAttributes(unsigned int numAttributes, CUpointer_attribute* attributes, void** data, CUdeviceptr ptr);
 typedef CUresult CUDAAPI tcuStreamCreate(CUstream* phStream, unsigned int Flags);
 typedef CUresult CUDAAPI tcuStreamCreateWithPriority(CUstream* phStream, unsigned int flags, int priority);
 typedef CUresult CUDAAPI tcuStreamGetPriority(CUstream hStream, int* priority);
@@ -881,10 +982,13 @@ typedef CUresult CUDAAPI tcuEventQuery(CUevent hEvent);
 typedef CUresult CUDAAPI tcuEventSynchronize(CUevent hEvent);
 typedef CUresult CUDAAPI tcuEventDestroy_v2(CUevent hEvent);
 typedef CUresult CUDAAPI tcuEventElapsedTime(float* pMilliseconds, CUevent hStart, CUevent hEnd);
+typedef CUresult CUDAAPI tcuStreamWaitValue32(CUstream stream, CUdeviceptr addr, cuuint32_t value, unsigned int flags);
+typedef CUresult CUDAAPI tcuStreamWriteValue32(CUstream stream, CUdeviceptr addr, cuuint32_t value, unsigned int flags);
+typedef CUresult CUDAAPI tcuStreamBatchMemOp(CUstream stream, unsigned int count, CUstreamBatchMemOpParams* paramArray, unsigned int flags);
 typedef CUresult CUDAAPI tcuFuncGetAttribute(int* pi, CUfunction_attribute attrib, CUfunction hfunc);
 typedef CUresult CUDAAPI tcuFuncSetCacheConfig(CUfunction hfunc, CUfunc_cache config);
 typedef CUresult CUDAAPI tcuFuncSetSharedMemConfig(CUfunction hfunc, CUsharedconfig config);
-typedef CUresult CUDAAPI tcuLaunchKernel(CUfunction f, unsigned int gridDimX, unsigned int gridDimY, unsigned int gridDimZ, unsigned int blockDimX, unsigned int blockDimY, unsigned int blockDimZ, unsigned int sharedMemBytes, CUstream hStream, void* kernelParams, void* extra);
+typedef CUresult CUDAAPI tcuLaunchKernel(CUfunction f, unsigned int gridDimX, unsigned int gridDimY, unsigned int gridDimZ, unsigned int blockDimX, unsigned int blockDimY, unsigned int blockDimZ, unsigned int sharedMemBytes, CUstream hStream, void** kernelParams, void** extra);
 typedef CUresult CUDAAPI tcuFuncSetBlockShape(CUfunction hfunc, int x, int y, int z);
 typedef CUresult CUDAAPI tcuFuncSetSharedSize(CUfunction hfunc, unsigned int bytes);
 typedef CUresult CUDAAPI tcuParamSetSize(CUfunction hfunc, unsigned int numbytes);
@@ -910,6 +1014,7 @@ typedef CUresult CUDAAPI tcuTexRefSetMipmapFilterMode(CUtexref hTexRef, CUfilter
 typedef CUresult CUDAAPI tcuTexRefSetMipmapLevelBias(CUtexref hTexRef, float bias);
 typedef CUresult CUDAAPI tcuTexRefSetMipmapLevelClamp(CUtexref hTexRef, float minMipmapLevelClamp, float maxMipmapLevelClamp);
 typedef CUresult CUDAAPI tcuTexRefSetMaxAnisotropy(CUtexref hTexRef, unsigned int maxAniso);
+typedef CUresult CUDAAPI tcuTexRefSetBorderColor(CUtexref hTexRef, float* pBorderColor);
 typedef CUresult CUDAAPI tcuTexRefSetFlags(CUtexref hTexRef, unsigned int Flags);
 typedef CUresult CUDAAPI tcuTexRefGetAddress_v2(CUdeviceptr* pdptr, CUtexref hTexRef);
 typedef CUresult CUDAAPI tcuTexRefGetArray(CUarray* phArray, CUtexref hTexRef);
@@ -921,6 +1026,7 @@ typedef CUresult CUDAAPI tcuTexRefGetMipmapFilterMode(CUfilter_mode* pfm, CUtexr
 typedef CUresult CUDAAPI tcuTexRefGetMipmapLevelBias(float* pbias, CUtexref hTexRef);
 typedef CUresult CUDAAPI tcuTexRefGetMipmapLevelClamp(float* pminMipmapLevelClamp, float* pmaxMipmapLevelClamp, CUtexref hTexRef);
 typedef CUresult CUDAAPI tcuTexRefGetMaxAnisotropy(int* pmaxAniso, CUtexref hTexRef);
+typedef CUresult CUDAAPI tcuTexRefGetBorderColor(float* pBorderColor, CUtexref hTexRef);
 typedef CUresult CUDAAPI tcuTexRefGetFlags(unsigned int* pFlags, CUtexref hTexRef);
 typedef CUresult CUDAAPI tcuTexRefCreate(CUtexref* pTexRef);
 typedef CUresult CUDAAPI tcuTexRefDestroy(CUtexref hTexRef);
@@ -935,6 +1041,7 @@ typedef CUresult CUDAAPI tcuSurfObjectCreate(CUsurfObject* pSurfObject, const CU
 typedef CUresult CUDAAPI tcuSurfObjectDestroy(CUsurfObject surfObject);
 typedef CUresult CUDAAPI tcuSurfObjectGetResourceDesc(CUDA_RESOURCE_DESC* pResDesc, CUsurfObject surfObject);
 typedef CUresult CUDAAPI tcuDeviceCanAccessPeer(int* canAccessPeer, CUdevice dev, CUdevice peerDev);
+typedef CUresult CUDAAPI tcuDeviceGetP2PAttribute(int* value, CUdevice_P2PAttribute attrib, CUdevice srcDevice, CUdevice dstDevice);
 typedef CUresult CUDAAPI tcuCtxEnablePeerAccess(CUcontext peerContext, unsigned int Flags);
 typedef CUresult CUDAAPI tcuCtxDisablePeerAccess(CUcontext peerContext);
 typedef CUresult CUDAAPI tcuGraphicsUnregisterResource(CUgraphicsResource resource);
@@ -944,7 +1051,7 @@ typedef CUresult CUDAAPI tcuGraphicsResourceGetMappedPointer_v2(CUdeviceptr* pDe
 typedef CUresult CUDAAPI tcuGraphicsResourceSetMapFlags_v2(CUgraphicsResource resource, unsigned int flags);
 typedef CUresult CUDAAPI tcuGraphicsMapResources(unsigned int count, CUgraphicsResource* resources, CUstream hStream);
 typedef CUresult CUDAAPI tcuGraphicsUnmapResources(unsigned int count, CUgraphicsResource* resources, CUstream hStream);
-typedef CUresult CUDAAPI tcuGetExportTable(const void* ppExportTable, const CUuuid* pExportTableId);
+typedef CUresult CUDAAPI tcuGetExportTable(const void** ppExportTable, const CUuuid* pExportTableId);
 
 typedef CUresult CUDAAPI tcuGraphicsGLRegisterBuffer(CUgraphicsResource* pCudaResource, GLuint buffer, unsigned int Flags);
 typedef CUresult CUDAAPI tcuGraphicsGLRegisterImage(CUgraphicsResource* pCudaResource, GLuint image, GLenum target, unsigned int Flags);
@@ -961,13 +1068,15 @@ typedef CUresult CUDAAPI tcuGLUnmapBufferObjectAsync(GLuint buffer, CUstream hSt
 
 typedef const char* CUDAAPI tnvrtcGetErrorString(nvrtcResult result);
 typedef nvrtcResult CUDAAPI tnvrtcVersion(int* major, int* minor);
-typedef nvrtcResult CUDAAPI tnvrtcCreateProgram(nvrtcProgram* prog, const char* src, const char* name, int numHeaders, const char* headers, const char* includeNames);
+typedef nvrtcResult CUDAAPI tnvrtcCreateProgram(nvrtcProgram* prog, const char* src, const char* name, int numHeaders, const char** headers, const char** includeNames);
 typedef nvrtcResult CUDAAPI tnvrtcDestroyProgram(nvrtcProgram* prog);
-typedef nvrtcResult CUDAAPI tnvrtcCompileProgram(nvrtcProgram prog, int numOptions, const char* options);
+typedef nvrtcResult CUDAAPI tnvrtcCompileProgram(nvrtcProgram prog, int numOptions, const char** options);
 typedef nvrtcResult CUDAAPI tnvrtcGetPTXSize(nvrtcProgram prog, size_t* ptxSizeRet);
 typedef nvrtcResult CUDAAPI tnvrtcGetPTX(nvrtcProgram prog, char* ptx);
 typedef nvrtcResult CUDAAPI tnvrtcGetProgramLogSize(nvrtcProgram prog, size_t* logSizeRet);
 typedef nvrtcResult CUDAAPI tnvrtcGetProgramLog(nvrtcProgram prog, char* log);
+typedef nvrtcResult CUDAAPI tnvrtcAddNameExpression(nvrtcProgram prog, const char* name_expression);
+typedef nvrtcResult CUDAAPI tnvrtcGetLoweredName(nvrtcProgram prog, const char* name_expression, const char** lowered_name);
 
 
 /* Function declarations. */
@@ -1085,6 +1194,10 @@ extern tcuMipmappedArrayCreate *cuMipmappedArrayCreate;
 extern tcuMipmappedArrayGetLevel *cuMipmappedArrayGetLevel;
 extern tcuMipmappedArrayDestroy *cuMipmappedArrayDestroy;
 extern tcuPointerGetAttribute *cuPointerGetAttribute;
+extern tcuMemPrefetchAsync *cuMemPrefetchAsync;
+extern tcuMemAdvise *cuMemAdvise;
+extern tcuMemRangeGetAttribute *cuMemRangeGetAttribute;
+extern tcuMemRangeGetAttributes *cuMemRangeGetAttributes;
 extern tcuPointerSetAttribute *cuPointerSetAttribute;
 extern tcuPointerGetAttributes *cuPointerGetAttributes;
 extern tcuStreamCreate *cuStreamCreate;
@@ -1103,6 +1216,9 @@ extern tcuEventQuery *cuEventQuery;
 extern tcuEventSynchronize *cuEventSynchronize;
 extern tcuEventDestroy_v2 *cuEventDestroy_v2;
 extern tcuEventElapsedTime *cuEventElapsedTime;
+extern tcuStreamWaitValue32 *cuStreamWaitValue32;
+extern tcuStreamWriteValue32 *cuStreamWriteValue32;
+extern tcuStreamBatchMemOp *cuStreamBatchMemOp;
 extern tcuFuncGetAttribute *cuFuncGetAttribute;
 extern tcuFuncSetCacheConfig *cuFuncSetCacheConfig;
 extern tcuFuncSetSharedMemConfig *cuFuncSetSharedMemConfig;
@@ -1132,6 +1248,7 @@ extern tcuTexRefSetMipmapFilterMode *cuTexRefSetMipmapFilterMode;
 extern tcuTexRefSetMipmapLevelBias *cuTexRefSetMipmapLevelBias;
 extern tcuTexRefSetMipmapLevelClamp *cuTexRefSetMipmapLevelClamp;
 extern tcuTexRefSetMaxAnisotropy *cuTexRefSetMaxAnisotropy;
+extern tcuTexRefSetBorderColor *cuTexRefSetBorderColor;
 extern tcuTexRefSetFlags *cuTexRefSetFlags;
 extern tcuTexRefGetAddress_v2 *cuTexRefGetAddress_v2;
 extern tcuTexRefGetArray *cuTexRefGetArray;
@@ -1143,6 +1260,7 @@ extern tcuTexRefGetMipmapFilterMode *cuTexRefGetMipmapFilterMode;
 extern tcuTexRefGetMipmapLevelBias *cuTexRefGetMipmapLevelBias;
 extern tcuTexRefGetMipmapLevelClamp *cuTexRefGetMipmapLevelClamp;
 extern tcuTexRefGetMaxAnisotropy *cuTexRefGetMaxAnisotropy;
+extern tcuTexRefGetBorderColor *cuTexRefGetBorderColor;
 extern tcuTexRefGetFlags *cuTexRefGetFlags;
 extern tcuTexRefCreate *cuTexRefCreate;
 extern tcuTexRefDestroy *cuTexRefDestroy;
@@ -1157,6 +1275,7 @@ extern tcuSurfObjectCreate *cuSurfObjectCreate;
 extern tcuSurfObjectDestroy *cuSurfObjectDestroy;
 extern tcuSurfObjectGetResourceDesc *cuSurfObjectGetResourceDesc;
 extern tcuDeviceCanAccessPeer *cuDeviceCanAccessPeer;
+extern tcuDeviceGetP2PAttribute *cuDeviceGetP2PAttribute;
 extern tcuCtxEnablePeerAccess *cuCtxEnablePeerAccess;
 extern tcuCtxDisablePeerAccess *cuCtxDisablePeerAccess;
 extern tcuGraphicsUnregisterResource *cuGraphicsUnregisterResource;
@@ -1190,6 +1309,8 @@ extern tnvrtcGetPTXSize *nvrtcGetPTXSize;
 extern tnvrtcGetPTX *nvrtcGetPTX;
 extern tnvrtcGetProgramLogSize *nvrtcGetProgramLogSize;
 extern tnvrtcGetProgramLog *nvrtcGetProgramLog;
+extern tnvrtcAddNameExpression *nvrtcAddNameExpression;
+extern tnvrtcGetLoweredName *nvrtcGetLoweredName;
 
 
 enum {
diff --git a/extern/cuew/src/cuew.c b/extern/cuew/src/cuew.c
index c96ea2c1959..962059bfcce 100644
--- a/extern/cuew/src/cuew.c
+++ b/extern/cuew/src/cuew.c
@@ -184,6 +184,10 @@ tcuMipmappedArrayCreate *cuMipmappedArrayCreate;
 tcuMipmappedArrayGetLevel *cuMipmappedArrayGetLevel;
 tcuMipmappedArrayDestroy *cuMipmappedArrayDestroy;
 tcuPointerGetAttribute *cuPointerGetAttribute;
+tcuMemPrefetchAsync *cuMemPrefetchAsync;
+tcuMemAdvise *cuMemAdvise;
+tcuMemRangeGetAttribute *cuMemRangeGetAttribute;
+tcuMemRangeGetAttributes *cuMemRangeGetAttributes;
 tcuPointerSetAttribute *cuPointerSetAttribute;
 tcuPointerGetAttributes *cuPointerGetAttributes;
 tcuStreamCreate *cuStreamCreate;
@@ -202,6 +206,9 @@ tcuEventQuery *cuEventQuery;
 tcuEventSynchronize *cuEventSynchronize;
 tcuEventDestroy_v2 *cuEventDestroy_v2;
 tcuEventElapsedTime *cuEventElapsedTime;
+tcuStreamWaitValue32 *cuStreamWaitValue32;
+tcuStreamWriteValue32 *cuStreamWriteValue32;
+tcuStreamBatchMemOp *cuStreamBatchMemOp;
 tcuFuncGetAttribute *cuFuncGetAttribute;
 tcuFuncSetCacheConfig *cuFuncSetCacheConfig;
 tcuFuncSetSharedMemConfig *cuFuncSetSharedMemConfig;
@@ -231,6 +238,7 @@ tcuTexRefSetMipmapFilterMode *cuTexRefSetMipmapFilterMode;
 tcuTexRefSetMipmapLevelBias *cuTexRefSetMipmapLevelBias;
 tcuTexRefSetMipmapLevelClamp *cuTexRefSetMipmapLevelClamp;
 tcuTexRefSetMaxAnisotropy *cuTexRefSetMaxAnisotropy;
+tcuTexRefSetBorderColor *cuTexRefSetBorderColor;
 tcuTexRefSetFlags *cuTexRefSetFlags;
 tcuTexRefGetAddress_v2 *cuTexRefGetAddress_v2;
 tcuTexRefGetArray *cuTexRefGetArray;
@@ -242,6 +250,7 @@ tcuTexRefGetMipmapFilterMode *cuTexRefGetMipmapFilterMode;
 tcuTexRefGetMipmapLevelBias *cuTexRefGetMipmapLevelBias;
 tcuTexRefGetMipmapLevelClamp *cuTexRefGetMipmapLevelClamp;
 tcuTexRefGetMaxAnisotropy *cuTexRefGetMaxAnisotropy;
+tcuTexRefGetBorderColor *cuTexRefGetBorderColor;
 tcuTexRefGetFlags *cuTexRefGetFlags;
 tcuTexRefCreate *cuTexRefCreate;
 tcuTexRefDestroy *cuTexRefDestroy;
@@ -256,6 +265,7 @@ tcuSurfObjectCreate *cuSurfObjectCreate;
 tcuSurfObjectDestroy *cuSurfObjectDestroy;
 tcuSurfObjectGetResourceDesc *cuSurfObjectGetResourceDesc;
 tcuDeviceCanAccessPeer *cuDeviceCanAccessPeer;
+tcuDeviceGetP2PAttribute *cuDeviceGetP2PAttribute;
 tcuCtxEnablePeerAccess *cuCtxEnablePeerAccess;
 tcuCtxDisablePeerAccess *cuCtxDisablePeerAccess;
 tcuGraphicsUnregisterResource *cuGraphicsUnregisterResource;
@@ -289,6 +299,8 @@ tnvrtcGetPTXSize *nvrtcGetPTXSize;
 tnvrtcGetPTX *nvrtcGetPTX;
 tnvrtcGetProgramLogSize *nvrtcGetProgramLogSize;
 tnvrtcGetProgramLog *nvrtcGetProgramLog;
+tnvrtcAddNameExpression *nvrtcAddNameExpression;
+tnvrtcGetLoweredName *nvrtcGetLoweredName;
 
 
 static DynamicLibrary dynamic_library_open_find(const char **paths) {
@@ -486,6 +498,10 @@ int cuewInit(void) {
   CUDA_LIBRARY_FIND(cuMipmappedArrayGetLevel);
   CUDA_LIBRARY_FIND(cuMipmappedArrayDestroy);
   CUDA_LIBRARY_FIND(cuPointerGetAttribute);
+  CUDA_LIBRARY_FIND(cuMemPrefetchAsync);
+  CUDA_LIBRARY_FIND(cuMemAdvise);
+  CUDA_LIBRARY_FIND(cuMemRangeGetAttribute);
+  CUDA_LIBRARY_FIND(cuMemRangeGetAttributes);
   CUDA_LIBRARY_FIND(cuPointerSetAttribute);
   CUDA_LIBRARY_FIND(cuPointerGetAttributes);
   CUDA_LIBRARY_FIND(cuStreamCreate);
@@ -504,6 +520,9 @@ int cuewInit(void) {
   CUDA_LIBRARY_FIND(cuEventSynchronize);
   CUDA_LIBRARY_FIND(cuEventDestroy_v2);
   CUDA_LIBRARY_FIND(cuEventElapsedTime);
+  CUDA_LIBRARY_FIND(cuStreamWaitValue32);
+  CUDA_LIBRARY_FIND(cuStreamWriteValue32);
+  CUDA_LIBRARY_FIND(cuStreamBatchMemOp);
   CUDA_LIBRARY_FIND(cuFuncGetAttribute);
   CUDA_LIBRARY_FIND(cuFuncSetCacheConfig);
   CUDA_LIBRARY_FIND(cuFuncSetSharedMemConfig);
@@ -533,6 +552,7 @@ int cuewInit(void) {
   CUDA_LIBRARY_FIND(cuTexRefSetMipmapLevelBias);
   CUDA_LIBRARY_FIND(cuTexRefSetMipmapLevelClamp);
   CUDA_LIBRARY_FIND(cuTexRefSetMaxAnisotropy);
+  CUDA_LIBRARY_FIND(cuTexRefSetBorderColor);
   CUDA_LIBRARY_FIND(cuTexRefSetFlags);
   CUDA_LIBRARY_FIND(cuTexRefGetAddress_v2);
   CUDA_LIBRARY_FIND(cuTexRefGetArray);
@@ -544,6 +564,7 @@ int cuewInit(void) {
   CUDA_LIBRARY_FIND(cuTexRefGetMipmapLevelBias);
   CUDA_LIBRARY_FIND(cuTexRefGetMipmapLevelClamp);
   CUDA_LIBRARY_FIND(cuTexRefGetMaxAnisotropy);
+  CUDA_LIBRARY_FIND(cuTexRefGetBorderColor);
   CUDA_LIBRARY_FIND(cuTexRefGetFlags);
   CUDA_LIBRARY_FIND(cuTexRefCreate);
   CUDA_LIBRARY_FIND(cuTexRefDestroy);
@@ -558,6 +579,7 @@ int cuewInit(void) {
   CUDA_LIBRARY_FIND(cuSurfObjectDestroy);
   CUDA_LIBRARY_FIND(cuSurfObjectGetResourceDesc);
   CUDA_LIBRARY_FIND(cuDeviceCanAccessPeer);
+  CUDA_LIBRARY_FIND(cuDeviceGetP2PAttribute);
   CUDA_LIBRARY_FIND(cuCtxEnablePeerAccess);
   CUDA_LIBRARY_FIND(cuCtxDisablePeerAccess);
   CUDA_LIBRARY_FIND(cuGraphicsUnregisterResource);
@@ -593,6 +615,8 @@ int cuewInit(void) {
     NVRTC_LIBRARY_FIND(nvrtcGetPTX);
     NVRTC_LIBRARY_FIND(nvrtcGetProgramLogSize);
     NVRTC_LIBRARY_FIND(nvrtcGetProgramLog);
+    NVRTC_LIBRARY_FIND(nvrtcAddNameExpression);
+    NVRTC_LIBRARY_FIND(nvrtcGetLoweredName);
   }
 
   result = CUEW_SUCCESS;
@@ -630,6 +654,7 @@ const char *cuewErrorString(CUresult result) {
     case CUDA_ERROR_PEER_ACCESS_UNSUPPORTED: return "Peer access unsupported";
     case CUDA_ERROR_INVALID_PTX: return "Invalid ptx";
     case CUDA_ERROR_INVALID_GRAPHICS_CONTEXT: return "Invalid graphics context";
+    case CUDA_ERROR_NVLINK_UNCORRECTABLE: return "Nvlink uncorrectable";
     case CUDA_ERROR_INVALID_SOURCE: return "Invalid source";
     case CUDA_ERROR_FILE_NOT_FOUND: return "File not found";
     case CUDA_ERROR_SHARED_OBJECT_SYMBOL_NOT_FOUND: return "Link to a shared object failed to resolve";
diff --git a/extern/curve_fit_nd/intern/curve_fit_cubic_refit.c b/extern/curve_fit_nd/intern/curve_fit_cubic_refit.c
index 96ec9a33270..b5340efdcb2 100644
--- a/extern/curve_fit_nd/intern/curve_fit_cubic_refit.c
+++ b/extern/curve_fit_nd/intern/curve_fit_cubic_refit.c
@@ -137,7 +137,7 @@ struct Knot {
 
 	/* Initially point to contiguous memory, however we may re-assign */
 	double *tan[2];
-} Knot;
+};
 
 
 struct KnotRemoveState {
@@ -1102,7 +1102,7 @@ int curve_fit_cubic_to_points_refit_db(
         uint   **r_corner_index_array, uint *r_corner_index_len)
 {
 	const uint knots_len = points_len;
-	struct Knot *knots = malloc(sizeof(Knot) * knots_len);
+	struct Knot *knots = malloc(sizeof(struct Knot) * knots_len);
 
 #ifndef USE_CORNER_DETECT
 	(void)r_corner_index_array;
diff --git a/intern/atomic/atomic_ops.h b/intern/atomic/atomic_ops.h
index 1e9528f9ed9..38670be56fd 100644
--- a/intern/atomic/atomic_ops.h
+++ b/intern/atomic/atomic_ops.h
@@ -100,6 +100,7 @@ ATOMIC_INLINE size_t atomic_sub_and_fetch_z(size_t *p, size_t x);
 ATOMIC_INLINE size_t atomic_fetch_and_add_z(size_t *p, size_t x);
 ATOMIC_INLINE size_t atomic_fetch_and_sub_z(size_t *p, size_t x);
 ATOMIC_INLINE size_t atomic_cas_z(size_t *v, size_t old, size_t _new);
+ATOMIC_INLINE size_t atomic_fetch_and_update_max_z(size_t *p, size_t x); /* Uses CAS loop, see warning below. */
 
 ATOMIC_INLINE unsigned int atomic_add_and_fetch_u(unsigned int *p, unsigned int x);
 ATOMIC_INLINE unsigned int atomic_sub_and_fetch_u(unsigned int *p, unsigned int x);
@@ -107,6 +108,8 @@ ATOMIC_INLINE unsigned int atomic_fetch_and_add_u(unsigned int *p, unsigned int
 ATOMIC_INLINE unsigned int atomic_fetch_and_sub_u(unsigned int *p, unsigned int x);
 ATOMIC_INLINE unsigned int atomic_cas_u(unsigned int *v, unsigned int old, unsigned int _new);
 
+ATOMIC_INLINE void *atomic_cas_ptr(void **v, void *old, void *_new);
+
 /* WARNING! Float 'atomics' are really faked ones, those are actually closer to some kind of spinlock-sync'ed operation,
  *          which means they are only efficient if collisions are highly unlikely (i.e. if probability of two threads
  *          working on the same pointer at the same time is very low). */
diff --git a/intern/atomic/intern/atomic_ops_ext.h b/intern/atomic/intern/atomic_ops_ext.h
index b72c94563fc..34158a0b45e 100644
--- a/intern/atomic/intern/atomic_ops_ext.h
+++ b/intern/atomic/intern/atomic_ops_ext.h
@@ -111,6 +111,17 @@ ATOMIC_INLINE size_t atomic_cas_z(size_t *v, size_t old, size_t _new)
 #endif
 }
 
+ATOMIC_INLINE size_t atomic_fetch_and_update_max_z(size_t *p, size_t x)
+{
+	size_t prev_value;
+	while((prev_value = *p) < x) {
+		if(atomic_cas_z(p, prev_value, x) == prev_value) {
+			break;
+		}
+	}
+	return prev_value;
+}
+
 /******************************************************************************/
 /* unsigned operations. */
 ATOMIC_INLINE unsigned int atomic_add_and_fetch_u(unsigned int *p, unsigned int x)
@@ -169,6 +180,18 @@ ATOMIC_INLINE unsigned int atomic_cas_u(unsigned int *v, unsigned int old, unsig
 }
 
 /******************************************************************************/
+/* Pointer operations. */
+
+ATOMIC_INLINE void *atomic_cas_ptr(void **v, void *old, void *_new)
+{
+#if (LG_SIZEOF_PTR == 8)
+	return (void *)atomic_cas_uint64((uint64_t *)v, *(uint64_t *)&old, *(uint64_t *)&_new);
+#elif (LG_SIZEOF_PTR == 4)
+	return (void *)atomic_cas_uint32((uint32_t *)v, *(uint32_t *)&old, *(uint32_t *)&_new);
+#endif
+}
+
+/******************************************************************************/
 /* float operations. */
 
 ATOMIC_INLINE float atomic_add_and_fetch_fl(float *p, const float x)
diff --git a/intern/atomic/intern/atomic_ops_utils.h b/intern/atomic/intern/atomic_ops_utils.h
index bfec9918c16..c190b655e0a 100644
--- a/intern/atomic/intern/atomic_ops_utils.h
+++ b/intern/atomic/intern/atomic_ops_utils.h
@@ -52,8 +52,8 @@
 #ifndef __ATOMIC_OPS_UTILS_H__
 #define __ATOMIC_OPS_UTILS_H__
 
-/* needed for int types */
-#include "../../../source/blender/blenlib/BLI_sys_types.h"
+#include <stdint.h>
+#include <stddef.h>
 #include <stdlib.h>
 #include <limits.h>
 
@@ -63,12 +63,7 @@
 #if defined(_MSC_VER)
 #  define ATOMIC_INLINE static __forceinline
 #else
-#  if (defined(__APPLE__) && defined(__ppc__))
-/* static inline __attribute__ here breaks osx ppc gcc42 build */
-#    define ATOMIC_INLINE static __attribute__((always_inline))
-#  else
-#    define ATOMIC_INLINE static inline __attribute__((always_inline))
-#  endif
+#  define ATOMIC_INLINE static inline __attribute__((always_inline))
 #endif
 
 #ifndef LIKELY
diff --git a/intern/audaspace/intern/AUD_SoftwareDevice.cpp b/intern/audaspace/intern/AUD_SoftwareDevice.cpp
index f9d65aa2363..10e42a82b76 100644
--- a/intern/audaspace/intern/AUD_SoftwareDevice.cpp
+++ b/intern/audaspace/intern/AUD_SoftwareDevice.cpp
@@ -89,7 +89,7 @@ bool AUD_SoftwareDevice::AUD_SoftwareHandle::pause(bool keep)
 }
 
 AUD_SoftwareDevice::AUD_SoftwareHandle::AUD_SoftwareHandle(AUD_SoftwareDevice* device, boost::shared_ptr<AUD_IReader> reader, boost::shared_ptr<AUD_PitchReader> pitch, boost::shared_ptr<AUD_ResampleReader> resampler, boost::shared_ptr<AUD_ChannelMapperReader> mapper, bool keep) :
-	m_reader(reader), m_pitch(pitch), m_resampler(resampler), m_mapper(mapper), m_keep(keep), m_user_pitch(1.0f), m_user_volume(1.0f), m_user_pan(0.0f), m_volume(1.0f), m_old_volume(1.0f), m_loopcount(0),
+	m_reader(reader), m_pitch(pitch), m_resampler(resampler), m_mapper(mapper), m_keep(keep), m_user_pitch(1.0f), m_user_volume(1.0f), m_user_pan(0.0f), m_volume(0.0f), m_old_volume(0.0f), m_loopcount(0),
 	m_relative(true), m_volume_max(1.0f), m_volume_min(0), m_distance_max(std::numeric_limits<float>::max()),
 	m_distance_reference(1.0f), m_attenuation(1.0f), m_cone_angle_outer(M_PI), m_cone_angle_inner(M_PI), m_cone_volume_outer(0),
 	m_flags(AUD_RENDER_CONE), m_stop(NULL), m_stop_data(NULL), m_status(AUD_STATUS_PLAYING), m_device(device)
diff --git a/intern/cycles/CMakeLists.txt b/intern/cycles/CMakeLists.txt
index c53a9f91cc0..5844c2480d6 100644
--- a/intern/cycles/CMakeLists.txt
+++ b/intern/cycles/CMakeLists.txt
@@ -41,61 +41,65 @@ elseif(WIN32 AND MSVC)
 		set(CYCLES_AVX2_ARCH_FLAGS "/arch:SSE2")
 	endif()
 
+	# Unlike GCC/clang we still use fast math, because there is no fine
+	# grained control and the speedup we get here is too big to ignore.
+	set(CYCLES_KERNEL_FLAGS "/fp:fast -D_CRT_SECURE_NO_WARNINGS /GS-")
+
 	# there is no /arch:SSE3, but intrinsics are available anyway
 	if(CMAKE_CL_64)
-		set(CYCLES_SSE2_KERNEL_FLAGS "/fp:fast -D_CRT_SECURE_NO_WARNINGS /GS-")
-		set(CYCLES_SSE3_KERNEL_FLAGS "/fp:fast -D_CRT_SECURE_NO_WARNINGS /GS-")
-		set(CYCLES_SSE41_KERNEL_FLAGS "/fp:fast -D_CRT_SECURE_NO_WARNINGS /GS-")
-		set(CYCLES_AVX_KERNEL_FLAGS "${CYCLES_AVX_ARCH_FLAGS} /fp:fast -D_CRT_SECURE_NO_WARNINGS /GS-")
-		set(CYCLES_AVX2_KERNEL_FLAGS "${CYCLES_AVX2_ARCH_FLAGS} /fp:fast -D_CRT_SECURE_NO_WARNINGS /GS-")
+		set(CYCLES_SSE2_KERNEL_FLAGS "${CYCLES_KERNEL_FLAGS}")
+		set(CYCLES_SSE3_KERNEL_FLAGS "${CYCLES_KERNEL_FLAGS}")
+		set(CYCLES_SSE41_KERNEL_FLAGS "${CYCLES_KERNEL_FLAGS}")
+		set(CYCLES_AVX_KERNEL_FLAGS "${CYCLES_AVX_ARCH_FLAGS} ${CYCLES_KERNEL_FLAGS}")
+		set(CYCLES_AVX2_KERNEL_FLAGS "${CYCLES_AVX2_ARCH_FLAGS} ${CYCLES_KERNEL_FLAGS}")
 	else()
-		set(CYCLES_SSE2_KERNEL_FLAGS "/arch:SSE2 /fp:fast -D_CRT_SECURE_NO_WARNINGS /GS-")
-		set(CYCLES_SSE3_KERNEL_FLAGS "/arch:SSE2 /fp:fast -D_CRT_SECURE_NO_WARNINGS /GS-")
-		set(CYCLES_SSE41_KERNEL_FLAGS "/arch:SSE2 /fp:fast -D_CRT_SECURE_NO_WARNINGS /GS-")
-		set(CYCLES_AVX_KERNEL_FLAGS "${CYCLES_AVX_ARCH_FLAGS} /fp:fast -D_CRT_SECURE_NO_WARNINGS /GS-")
-		set(CYCLES_AVX2_KERNEL_FLAGS "${CYCLES_AVX2_ARCH_FLAGS} /fp:fast -D_CRT_SECURE_NO_WARNINGS /GS-")
+		set(CYCLES_SSE2_KERNEL_FLAGS "/arch:SSE2 ${CYCLES_KERNEL_FLAGS}")
+		set(CYCLES_SSE3_KERNEL_FLAGS "/arch:SSE2 ${CYCLES_KERNEL_FLAGS}")
+		set(CYCLES_SSE41_KERNEL_FLAGS "/arch:SSE2 ${CYCLES_KERNEL_FLAGS}")
+		set(CYCLES_AVX_KERNEL_FLAGS "${CYCLES_AVX_ARCH_FLAGS} ${CYCLES_KERNEL_FLAGS}")
+		set(CYCLES_AVX2_KERNEL_FLAGS "${CYCLES_AVX2_ARCH_FLAGS} ${CYCLES_KERNEL_FLAGS}")
 	endif()
 
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /fp:fast -D_CRT_SECURE_NO_WARNINGS /GS-")
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CYCLES_KERNEL_FLAGS}")
 	set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /Ox")
 	set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} /Ox")
 	set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} /Ox")
-
-	set(CYCLES_KERNEL_FLAGS "/fp:fast -D_CRT_SECURE_NO_WARNINGS /GS-")
-elseif(CMAKE_COMPILER_IS_GNUCC)
+elseif(CMAKE_COMPILER_IS_GNUCC OR (CMAKE_CXX_COMPILER_ID MATCHES "Clang"))
 	check_cxx_compiler_flag(-msse CXX_HAS_SSE)
 	check_cxx_compiler_flag(-mavx CXX_HAS_AVX)
 	check_cxx_compiler_flag(-mavx2 CXX_HAS_AVX2)
-	set(CYCLES_KERNEL_FLAGS "-ffast-math")
-	if(CXX_HAS_SSE)
-		set(CYCLES_SSE2_KERNEL_FLAGS "-ffast-math -msse -msse2 -mfpmath=sse")
-		set(CYCLES_SSE3_KERNEL_FLAGS "-ffast-math -msse -msse2 -msse3 -mssse3 -mfpmath=sse")
-		set(CYCLES_SSE41_KERNEL_FLAGS "-ffast-math -msse -msse2 -msse3 -mssse3 -msse4.1 -mfpmath=sse")
-	endif()
-	if(CXX_HAS_AVX)
-		set(CYCLES_AVX_KERNEL_FLAGS "-ffast-math -msse -msse2 -msse3 -mssse3 -msse4.1 -mavx -mfpmath=sse")
-	endif()
-	if(CXX_HAS_AVX2)
-		set(CYCLES_AVX2_KERNEL_FLAGS "-ffast-math -msse -msse2 -msse3 -mssse3 -msse4.1 -mavx -mavx2 -mfma -mlzcnt -mbmi -mbmi2 -mf16c -mfpmath=sse")
+
+	# Assume no signal trapping for better code generation.
+	set(CYCLES_KERNEL_FLAGS "-fno-trapping-math")
+	# Avoid overhead of setting errno for NaNs.
+	set(CYCLES_KERNEL_FLAGS "${CYCLES_KERNEL_FLAGS} -fno-math-errno")
+	# Let compiler optimize 0.0 - x without worrying about signed zeros.
+	set(CYCLES_KERNEL_FLAGS "${CYCLES_KERNEL_FLAGS} -fno-signed-zeros")
+
+	if(CMAKE_COMPILER_IS_GNUCC)
+		# Assume no signal trapping for better code generation.
+		set(CYCLES_KERNEL_FLAGS "${CYCLES_KERNEL_FLAGS} -fno-signaling-nans")
+		# Assume a fixed rounding mode for better constant folding.
+		set(CYCLES_KERNEL_FLAGS "${CYCLES_KERNEL_FLAGS} -fno-rounding-math")
 	endif()
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ffast-math -fno-finite-math-only")
-elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-	check_cxx_compiler_flag(-msse CXX_HAS_SSE)
-	check_cxx_compiler_flag(-mavx CXX_HAS_AVX)
-	check_cxx_compiler_flag(-mavx2 CXX_HAS_AVX2)
-	set(CYCLES_KERNEL_FLAGS "-ffast-math")
+
 	if(CXX_HAS_SSE)
-		set(CYCLES_SSE2_KERNEL_FLAGS "-ffast-math -msse -msse2")
-		set(CYCLES_SSE3_KERNEL_FLAGS "-ffast-math -msse -msse2 -msse3 -mssse3")
-		set(CYCLES_SSE41_KERNEL_FLAGS "-ffast-math -msse -msse2 -msse3 -mssse3 -msse4.1")
-	endif()
-	if(CXX_HAS_AVX)
-		set(CYCLES_AVX_KERNEL_FLAGS "-ffast-math -msse -msse2 -msse3 -mssse3 -msse4.1 -mavx")
-	endif()
-	if(CXX_HAS_AVX2)
-		set(CYCLES_AVX2_KERNEL_FLAGS "-ffast-math -msse -msse2 -msse3 -mssse3 -msse4.1 -mavx -mavx2 -mfma -mlzcnt -mbmi -mbmi2 -mf16c")
+		if(CMAKE_COMPILER_IS_GNUCC)
+			set(CYCLES_KERNEL_FLAGS "${CYCLES_KERNEL_FLAGS} -mfpmath=sse")
+		endif()
+
+		set(CYCLES_SSE2_KERNEL_FLAGS "${CYCLES_KERNEL_FLAGS} -msse -msse2")
+		set(CYCLES_SSE3_KERNEL_FLAGS "${CYCLES_SSE2_KERNEL_FLAGS} -msse3 -mssse3")
+		set(CYCLES_SSE41_KERNEL_FLAGS "${CYCLES_SSE3_KERNEL_FLAGS} -msse4.1")
+		if(CXX_HAS_AVX)
+			set(CYCLES_AVX_KERNEL_FLAGS "${CYCLES_SSE41_KERNEL_FLAGS} -mavx")
+		endif()
+		if(CXX_HAS_AVX2)
+			set(CYCLES_AVX2_KERNEL_FLAGS "${CYCLES_SSE41_KERNEL_FLAGS} -mavx -mavx2 -mfma -mlzcnt -mbmi -mbmi2 -mf16c")
+		endif()
 	endif()
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ffast-math -fno-finite-math-only")
+
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CYCLES_KERNEL_FLAGS}")
 endif()
 
 if(CXX_HAS_SSE)
diff --git a/intern/cycles/blender/addon/presets.py b/intern/cycles/blender/addon/presets.py
index 82c4ffc6e50..17efb00abdb 100644
--- a/intern/cycles/blender/addon/presets.py
+++ b/intern/cycles/blender/addon/presets.py
@@ -32,14 +32,11 @@ class AddPresetIntegrator(AddPresetBase, Operator):
 
     preset_values = [
         "cycles.max_bounces",
-        "cycles.min_bounces",
         "cycles.diffuse_bounces",
         "cycles.glossy_bounces",
         "cycles.transmission_bounces",
         "cycles.volume_bounces",
-        "cycles.transparent_min_bounces",
         "cycles.transparent_max_bounces",
-        "cycles.use_transparent_shadows",
         "cycles.caustics_reflective",
         "cycles.caustics_refractive",
         "cycles.blur_glossy"
diff --git a/intern/cycles/blender/addon/properties.py b/intern/cycles/blender/addon/properties.py
index 68474529ed3..7b16ef1d543 100644
--- a/intern/cycles/blender/addon/properties.py
+++ b/intern/cycles/blender/addon/properties.py
@@ -205,13 +205,13 @@ class CyclesRenderSettings(bpy.types.PropertyGroup):
                 name="AA Samples",
                 description="Number of antialiasing samples to render for each pixel",
                 min=1, max=2097151,
-                default=4,
+                default=128,
                 )
         cls.preview_aa_samples = IntProperty(
                 name="AA Samples",
                 description="Number of antialiasing samples to render in the viewport, unlimited if 0",
                 min=0, max=2097151,
-                default=4,
+                default=32,
                 )
         cls.diffuse_samples = IntProperty(
                 name="Diffuse Samples",
@@ -308,17 +308,9 @@ class CyclesRenderSettings(bpy.types.PropertyGroup):
                 description="Adaptively blur glossy shaders after blurry bounces, "
                             "to reduce noise at the cost of accuracy",
                 min=0.0, max=10.0,
-                default=0.0,
+                default=1.0,
                 )
 
-        cls.min_bounces = IntProperty(
-                name="Min Bounces",
-                description="Minimum number of bounces, setting this lower "
-                            "than the maximum enables probabilistic path "
-                            "termination (faster but noisier)",
-                min=0, max=1024,
-                default=3,
-                )
         cls.max_bounces = IntProperty(
                 name="Max Bounces",
                 description="Total maximum number of bounces",
@@ -351,26 +343,12 @@ class CyclesRenderSettings(bpy.types.PropertyGroup):
                 default=0,
                 )
 
-        cls.transparent_min_bounces = IntProperty(
-                name="Transparent Min Bounces",
-                description="Minimum number of transparent bounces, setting "
-                            "this lower than the maximum enables "
-                            "probabilistic path termination (faster but "
-                            "noisier)",
-                min=0, max=1024,
-                default=8,
-                )
         cls.transparent_max_bounces = IntProperty(
                 name="Transparent Max Bounces",
                 description="Maximum number of transparent bounces",
                 min=0, max=1024,
                 default=8,
                 )
-        cls.use_transparent_shadows = BoolProperty(
-                name="Transparent Shadows",
-                description="Use transparency of surfaces for rendering shadows",
-                default=True,
-                )
 
         cls.volume_step_size = FloatProperty(
                 name="Step Size",
@@ -475,7 +453,7 @@ class CyclesRenderSettings(bpy.types.PropertyGroup):
                             "higher values will be scaled down to avoid too "
                             "much noise and slow convergence at the cost of accuracy",
                 min=0.0, max=1e8,
-                default=0.0,
+                default=10.0,
                 )
 
         cls.debug_tile_size = IntProperty(
diff --git a/intern/cycles/blender/addon/ui.py b/intern/cycles/blender/addon/ui.py
index 49beebe5ab4..7ab47455c49 100644
--- a/intern/cycles/blender/addon/ui.py
+++ b/intern/cycles/blender/addon/ui.py
@@ -139,7 +139,7 @@ def draw_samples_info(layout, context):
                       (ao * aa, ml * aa, sss * aa, vol * aa))
 
 
-class CyclesRender_PT_sampling(CyclesButtonsPanel, Panel):
+class CYCLES_RENDER_PT_sampling(CyclesButtonsPanel, Panel):
     bl_label = "Sampling"
     bl_options = {'DEFAULT_CLOSED'}
 
@@ -214,7 +214,7 @@ class CyclesRender_PT_sampling(CyclesButtonsPanel, Panel):
         draw_samples_info(layout, context)
 
 
-class CyclesRender_PT_geometry(CyclesButtonsPanel, Panel):
+class CYCLES_RENDER_PT_geometry(CyclesButtonsPanel, Panel):
     bl_label = "Geometry"
     bl_options = {'DEFAULT_CLOSED'}
 
@@ -270,7 +270,7 @@ class CyclesRender_PT_geometry(CyclesButtonsPanel, Panel):
         row.prop(ccscene, "maximum_width", text="Max Extension")
 
 
-class CyclesRender_PT_light_paths(CyclesButtonsPanel, Panel):
+class CYCLES_RENDER_PT_light_paths(CyclesButtonsPanel, Panel):
     bl_label = "Light Paths"
     bl_options = {'DEFAULT_CLOSED'}
 
@@ -292,8 +292,6 @@ class CyclesRender_PT_light_paths(CyclesButtonsPanel, Panel):
         sub = col.column(align=True)
         sub.label("Transparency:")
         sub.prop(cscene, "transparent_max_bounces", text="Max")
-        sub.prop(cscene, "transparent_min_bounces", text="Min")
-        sub.prop(cscene, "use_transparent_shadows", text="Shadows")
 
         col.separator()
 
@@ -306,7 +304,6 @@ class CyclesRender_PT_light_paths(CyclesButtonsPanel, Panel):
         sub = col.column(align=True)
         sub.label(text="Bounces:")
         sub.prop(cscene, "max_bounces", text="Max")
-        sub.prop(cscene, "min_bounces", text="Min")
 
         sub = col.column(align=True)
         sub.prop(cscene, "diffuse_bounces", text="Diffuse")
@@ -315,7 +312,7 @@ class CyclesRender_PT_light_paths(CyclesButtonsPanel, Panel):
         sub.prop(cscene, "volume_bounces", text="Volume")
 
 
-class CyclesRender_PT_motion_blur(CyclesButtonsPanel, Panel):
+class CYCLES_RENDER_PT_motion_blur(CyclesButtonsPanel, Panel):
     bl_label = "Motion Blur"
     bl_options = {'DEFAULT_CLOSED'}
 
@@ -356,7 +353,7 @@ class CyclesRender_PT_motion_blur(CyclesButtonsPanel, Panel):
         row.prop(cscene, "rolling_shutter_duration")
 
 
-class CyclesRender_PT_film(CyclesButtonsPanel, Panel):
+class CYCLES_RENDER_PT_film(CyclesButtonsPanel, Panel):
     bl_label = "Film"
 
     def draw(self, context):
@@ -378,7 +375,7 @@ class CyclesRender_PT_film(CyclesButtonsPanel, Panel):
             sub.prop(cscene, "filter_width", text="Width")
 
 
-class CyclesRender_PT_performance(CyclesButtonsPanel, Panel):
+class CYCLES_RENDER_PT_performance(CyclesButtonsPanel, Panel):
     bl_label = "Performance"
     bl_options = {'DEFAULT_CLOSED'}
 
@@ -399,6 +396,8 @@ class CyclesRender_PT_performance(CyclesButtonsPanel, Panel):
         sub.enabled = rd.threads_mode == 'FIXED'
         sub.prop(rd, "threads")
 
+        col.separator()
+
         sub = col.column(align=True)
         sub.label(text="Tiles:")
         sub.prop(cscene, "tile_order", text="")
@@ -408,19 +407,10 @@ class CyclesRender_PT_performance(CyclesButtonsPanel, Panel):
 
         sub.prop(cscene, "use_progressive_refine")
 
-        subsub = sub.column(align=True)
-        subsub.prop(rd, "use_save_buffers")
-
-        col = split.column(align=True)
-
-        col.label(text="Viewport:")
-        col.prop(cscene, "debug_bvh_type", text="")
-        col.separator()
-        col.prop(cscene, "preview_start_resolution")
-
-        col.separator()
+        col = split.column()
 
         col.label(text="Final Render:")
+        col.prop(rd, "use_save_buffers")
         col.prop(rd, "use_persistent_data", text="Persistent Images")
 
         col.separator()
@@ -433,8 +423,14 @@ class CyclesRender_PT_performance(CyclesButtonsPanel, Panel):
         row.active = not cscene.debug_use_spatial_splits
         row.prop(cscene, "debug_bvh_time_steps")
 
+        col = layout.column()
+        col.label(text="Viewport Resolution:")
+        split = col.split()
+        split.prop(rd, "preview_pixel_size", text="")
+        split.prop(cscene, "preview_start_resolution")
+
 
-class CyclesRender_PT_layer_options(CyclesButtonsPanel, Panel):
+class CYCLES_RENDER_PT_layer_options(CyclesButtonsPanel, Panel):
     bl_label = "Layer"
     bl_context = "render_layer"
 
@@ -470,7 +466,7 @@ class CyclesRender_PT_layer_options(CyclesButtonsPanel, Panel):
         col.prop(rl, "use_strand", "Use Hair")
 
 
-class CyclesRender_PT_layer_passes(CyclesButtonsPanel, Panel):
+class CYCLES_RENDER_PT_layer_passes(CyclesButtonsPanel, Panel):
     bl_label = "Passes"
     bl_context = "render_layer"
     bl_options = {'DEFAULT_CLOSED'}
@@ -544,7 +540,7 @@ class CyclesRender_PT_layer_passes(CyclesButtonsPanel, Panel):
             col.prop(crl, "pass_debug_ray_bounces")
 
 
-class CyclesRender_PT_views(CyclesButtonsPanel, Panel):
+class CYCLES_RENDER_PT_views(CyclesButtonsPanel, Panel):
     bl_label = "Views"
     bl_context = "render_layer"
     bl_options = {'DEFAULT_CLOSED'}
@@ -587,7 +583,7 @@ class CyclesRender_PT_views(CyclesButtonsPanel, Panel):
             row.prop(rv, "camera_suffix", text="")
 
 
-class CyclesRender_PT_denoising(CyclesButtonsPanel, Panel):
+class CYCLES_RENDER_PT_denoising(CyclesButtonsPanel, Panel):
     bl_label = "Denoising"
     bl_context = "render_layer"
     bl_options = {'DEFAULT_CLOSED'}
@@ -652,7 +648,7 @@ class CyclesRender_PT_denoising(CyclesButtonsPanel, Panel):
         sub.prop(crl, "denoising_subsurface_indirect", text="Indirect", toggle=True)
 
 
-class Cycles_PT_post_processing(CyclesButtonsPanel, Panel):
+class CYCLES_PT_post_processing(CyclesButtonsPanel, Panel):
     bl_label = "Post Processing"
     bl_options = {'DEFAULT_CLOSED'}
 
@@ -671,7 +667,7 @@ class Cycles_PT_post_processing(CyclesButtonsPanel, Panel):
         col.prop(rd, "dither_intensity", text="Dither", slider=True)
 
 
-class CyclesCamera_PT_dof(CyclesButtonsPanel, Panel):
+class CYCLES_CAMERA_PT_dof(CyclesButtonsPanel, Panel):
     bl_label = "Depth of Field"
     bl_context = "data"
 
@@ -722,7 +718,7 @@ class CyclesCamera_PT_dof(CyclesButtonsPanel, Panel):
         sub.prop(ccam, "aperture_ratio", text="Ratio")
 
 
-class Cycles_PT_context_material(CyclesButtonsPanel, Panel):
+class CYCLES_PT_context_material(CyclesButtonsPanel, Panel):
     bl_label = ""
     bl_context = "material"
     bl_options = {'HIDE_HEADER'}
@@ -782,7 +778,7 @@ class Cycles_PT_context_material(CyclesButtonsPanel, Panel):
             split.separator()
 
 
-class CyclesObject_PT_motion_blur(CyclesButtonsPanel, Panel):
+class CYCLES_OBJECT_PT_motion_blur(CyclesButtonsPanel, Panel):
     bl_label = "Motion Blur"
     bl_context = "object"
     bl_options = {'DEFAULT_CLOSED'}
@@ -830,7 +826,7 @@ class CyclesObject_PT_motion_blur(CyclesButtonsPanel, Panel):
         sub.prop(cob, "motion_steps", text="Steps")
 
 
-class CyclesObject_PT_cycles_settings(CyclesButtonsPanel, Panel):
+class CYCLES_OBJECT_PT_cycles_settings(CyclesButtonsPanel, Panel):
     bl_label = "Cycles Settings"
     bl_context = "object"
     bl_options = {'DEFAULT_CLOSED'}
@@ -939,7 +935,7 @@ def panel_node_draw(layout, id_data, output_type, input_name):
     return True
 
 
-class CyclesLamp_PT_preview(CyclesButtonsPanel, Panel):
+class CYCLES_LAMP_PT_preview(CyclesButtonsPanel, Panel):
     bl_label = "Preview"
     bl_context = "data"
     bl_options = {'DEFAULT_CLOSED'}
@@ -955,7 +951,7 @@ class CyclesLamp_PT_preview(CyclesButtonsPanel, Panel):
         self.layout.template_preview(context.lamp)
 
 
-class CyclesLamp_PT_lamp(CyclesButtonsPanel, Panel):
+class CYCLES_LAMP_PT_lamp(CyclesButtonsPanel, Panel):
     bl_label = "Lamp"
     bl_context = "data"
 
@@ -1009,7 +1005,7 @@ class CyclesLamp_PT_lamp(CyclesButtonsPanel, Panel):
             layout.label(text="Not supported, interpreted as sun lamp")
 
 
-class CyclesLamp_PT_nodes(CyclesButtonsPanel, Panel):
+class CYCLES_LAMP_PT_nodes(CyclesButtonsPanel, Panel):
     bl_label = "Nodes"
     bl_context = "data"
 
@@ -1027,7 +1023,7 @@ class CyclesLamp_PT_nodes(CyclesButtonsPanel, Panel):
             layout.prop(lamp, "color")
 
 
-class CyclesLamp_PT_spot(CyclesButtonsPanel, Panel):
+class CYCLES_LAMP_PT_spot(CyclesButtonsPanel, Panel):
     bl_label = "Spot Shape"
     bl_context = "data"
 
@@ -1052,7 +1048,7 @@ class CyclesLamp_PT_spot(CyclesButtonsPanel, Panel):
         col.prop(lamp, "show_cone")
 
 
-class CyclesWorld_PT_preview(CyclesButtonsPanel, Panel):
+class CYCLES_WORLD_PT_preview(CyclesButtonsPanel, Panel):
     bl_label = "Preview"
     bl_context = "world"
     bl_options = {'DEFAULT_CLOSED'}
@@ -1065,7 +1061,7 @@ class CyclesWorld_PT_preview(CyclesButtonsPanel, Panel):
         self.layout.template_preview(context.world)
 
 
-class CyclesWorld_PT_surface(CyclesButtonsPanel, Panel):
+class CYCLES_WORLD_PT_surface(CyclesButtonsPanel, Panel):
     bl_label = "Surface"
     bl_context = "world"
 
@@ -1082,7 +1078,7 @@ class CyclesWorld_PT_surface(CyclesButtonsPanel, Panel):
             layout.prop(world, "horizon_color", text="Color")
 
 
-class CyclesWorld_PT_volume(CyclesButtonsPanel, Panel):
+class CYCLES_WORLD_PT_volume(CyclesButtonsPanel, Panel):
     bl_label = "Volume"
     bl_context = "world"
     bl_options = {'DEFAULT_CLOSED'}
@@ -1099,7 +1095,7 @@ class CyclesWorld_PT_volume(CyclesButtonsPanel, Panel):
         panel_node_draw(layout, world, 'OUTPUT_WORLD', 'Volume')
 
 
-class CyclesWorld_PT_ambient_occlusion(CyclesButtonsPanel, Panel):
+class CYCLES_WORLD_PT_ambient_occlusion(CyclesButtonsPanel, Panel):
     bl_label = "Ambient Occlusion"
     bl_context = "world"
 
@@ -1124,7 +1120,7 @@ class CyclesWorld_PT_ambient_occlusion(CyclesButtonsPanel, Panel):
         row.prop(light, "distance", text="Distance")
 
 
-class CyclesWorld_PT_mist(CyclesButtonsPanel, Panel):
+class CYCLES_WORLD_PT_mist(CyclesButtonsPanel, Panel):
     bl_label = "Mist Pass"
     bl_context = "world"
     bl_options = {'DEFAULT_CLOSED'}
@@ -1151,7 +1147,7 @@ class CyclesWorld_PT_mist(CyclesButtonsPanel, Panel):
         layout.prop(world.mist_settings, "falloff")
 
 
-class CyclesWorld_PT_ray_visibility(CyclesButtonsPanel, Panel):
+class CYCLES_WORLD_PT_ray_visibility(CyclesButtonsPanel, Panel):
     bl_label = "Ray Visibility"
     bl_context = "world"
     bl_options = {'DEFAULT_CLOSED'}
@@ -1175,7 +1171,7 @@ class CyclesWorld_PT_ray_visibility(CyclesButtonsPanel, Panel):
         flow.prop(visibility, "scatter")
 
 
-class CyclesWorld_PT_settings(CyclesButtonsPanel, Panel):
+class CYCLES_WORLD_PT_settings(CyclesButtonsPanel, Panel):
     bl_label = "Settings"
     bl_context = "world"
     bl_options = {'DEFAULT_CLOSED'}
@@ -1216,7 +1212,7 @@ class CyclesWorld_PT_settings(CyclesButtonsPanel, Panel):
         col.prop(cworld, "homogeneous_volume", text="Homogeneous")
 
 
-class CyclesMaterial_PT_preview(CyclesButtonsPanel, Panel):
+class CYCLES_MATERIAL_PT_preview(CyclesButtonsPanel, Panel):
     bl_label = "Preview"
     bl_context = "material"
     bl_options = {'DEFAULT_CLOSED'}
@@ -1229,7 +1225,7 @@ class CyclesMaterial_PT_preview(CyclesButtonsPanel, Panel):
         self.layout.template_preview(context.material)
 
 
-class CyclesMaterial_PT_surface(CyclesButtonsPanel, Panel):
+class CYCLES_MATERIAL_PT_surface(CyclesButtonsPanel, Panel):
     bl_label = "Surface"
     bl_context = "material"
 
@@ -1245,7 +1241,7 @@ class CyclesMaterial_PT_surface(CyclesButtonsPanel, Panel):
             layout.prop(mat, "diffuse_color")
 
 
-class CyclesMaterial_PT_volume(CyclesButtonsPanel, Panel):
+class CYCLES_MATERIAL_PT_volume(CyclesButtonsPanel, Panel):
     bl_label = "Volume"
     bl_context = "material"
     bl_options = {'DEFAULT_CLOSED'}
@@ -1264,7 +1260,7 @@ class CyclesMaterial_PT_volume(CyclesButtonsPanel, Panel):
         panel_node_draw(layout, mat, 'OUTPUT_MATERIAL', 'Volume')
 
 
-class CyclesMaterial_PT_displacement(CyclesButtonsPanel, Panel):
+class CYCLES_MATERIAL_PT_displacement(CyclesButtonsPanel, Panel):
     bl_label = "Displacement"
     bl_context = "material"
 
@@ -1280,7 +1276,7 @@ class CyclesMaterial_PT_displacement(CyclesButtonsPanel, Panel):
         panel_node_draw(layout, mat, 'OUTPUT_MATERIAL', 'Displacement')
 
 
-class CyclesMaterial_PT_settings(CyclesButtonsPanel, Panel):
+class CYCLES_MATERIAL_PT_settings(CyclesButtonsPanel, Panel):
     bl_label = "Settings"
     bl_context = "material"
     bl_options = {'DEFAULT_CLOSED'}
@@ -1335,7 +1331,7 @@ class CyclesMaterial_PT_settings(CyclesButtonsPanel, Panel):
         col.prop(mat, "pass_index")
 
 
-class CyclesTexture_PT_context(CyclesButtonsPanel, Panel):
+class CYCLES_TEXTURE_PT_context(CyclesButtonsPanel, Panel):
     bl_label = ""
     bl_context = "texture"
     bl_options = {'HIDE_HEADER'}
@@ -1376,7 +1372,7 @@ class CyclesTexture_PT_context(CyclesButtonsPanel, Panel):
                 split.prop(tex, "type", text="")
 
 
-class CyclesTexture_PT_node(CyclesButtonsPanel, Panel):
+class CYCLES_TEXTURE_PT_node(CyclesButtonsPanel, Panel):
     bl_label = "Node"
     bl_context = "texture"
 
@@ -1393,7 +1389,7 @@ class CyclesTexture_PT_node(CyclesButtonsPanel, Panel):
         layout.template_node_view(ntree, node, None)
 
 
-class CyclesTexture_PT_mapping(CyclesButtonsPanel, Panel):
+class CYCLES_TEXTURE_PT_mapping(CyclesButtonsPanel, Panel):
     bl_label = "Mapping"
     bl_context = "texture"
 
@@ -1426,7 +1422,7 @@ class CyclesTexture_PT_mapping(CyclesButtonsPanel, Panel):
         row.prop(mapping, "mapping_z", text="")
 
 
-class CyclesTexture_PT_colors(CyclesButtonsPanel, Panel):
+class CYCLES_TEXTURE_PT_colors(CyclesButtonsPanel, Panel):
     bl_label = "Color"
     bl_context = "texture"
     bl_options = {'DEFAULT_CLOSED'}
@@ -1465,7 +1461,7 @@ class CyclesTexture_PT_colors(CyclesButtonsPanel, Panel):
             layout.template_color_ramp(mapping, "color_ramp", expand=True)
 
 
-class CyclesParticle_PT_textures(CyclesButtonsPanel, Panel):
+class CYCLES_PARTICLE_PT_textures(CyclesButtonsPanel, Panel):
     bl_label = "Textures"
     bl_context = "particle"
     bl_options = {'DEFAULT_CLOSED'}
@@ -1496,7 +1492,7 @@ class CyclesParticle_PT_textures(CyclesButtonsPanel, Panel):
             layout.template_ID(slot, "texture", new="texture.new")
 
 
-class CyclesRender_PT_bake(CyclesButtonsPanel, Panel):
+class CYCLES_RENDER_PT_bake(CyclesButtonsPanel, Panel):
     bl_label = "Bake"
     bl_context = "render"
     bl_options = {'DEFAULT_CLOSED'}
@@ -1569,7 +1565,7 @@ class CyclesRender_PT_bake(CyclesButtonsPanel, Panel):
             sub.prop(cbk, "cage_extrusion", text="Ray Distance")
 
 
-class CyclesRender_PT_debug(CyclesButtonsPanel, Panel):
+class CYCLES_RENDER_PT_debug(CyclesButtonsPanel, Panel):
     bl_label = "Debug"
     bl_context = "render"
     bl_options = {'DEFAULT_CLOSED'}
@@ -1597,11 +1593,15 @@ class CyclesRender_PT_debug(CyclesButtonsPanel, Panel):
         col.prop(cscene, "debug_use_qbvh")
         col.prop(cscene, "debug_use_cpu_split_kernel")
 
+        col.separator()
+
         col = layout.column()
         col.label('CUDA Flags:')
         col.prop(cscene, "debug_use_cuda_adaptive_compile")
         col.prop(cscene, "debug_use_cuda_split_kernel")
 
+        col.separator()
+
         col = layout.column()
         col.label('OpenCL Flags:')
         col.prop(cscene, "debug_opencl_kernel_type", text="Kernel")
@@ -1610,8 +1610,13 @@ class CyclesRender_PT_debug(CyclesButtonsPanel, Panel):
         col.prop(cscene, "debug_use_opencl_debug", text="Debug")
         col.prop(cscene, "debug_opencl_mem_limit")
 
+        col.separator()
+
+        col = layout.column()
+        col.prop(cscene, "debug_bvh_type")
+
 
-class CyclesParticle_PT_CurveSettings(CyclesButtonsPanel, Panel):
+class CYCLES_PARTICLE_PT_curve_settings(CyclesButtonsPanel, Panel):
     bl_label = "Cycles Hair Settings"
     bl_context = "particle"
 
@@ -1642,7 +1647,7 @@ class CyclesParticle_PT_CurveSettings(CyclesButtonsPanel, Panel):
         row.prop(cpsys, "use_closetip", text="Close tip")
 
 
-class CyclesScene_PT_simplify(CyclesButtonsPanel, Panel):
+class CYCLES_SCENE_PT_simplify(CyclesButtonsPanel, Panel):
     bl_label = "Simplify"
     bl_context = "scene"
     COMPAT_ENGINES = {'CYCLES'}
@@ -1797,47 +1802,47 @@ def get_panels():
 classes = (
     CYCLES_MT_sampling_presets,
     CYCLES_MT_integrator_presets,
-    CyclesRender_PT_sampling,
-    CyclesRender_PT_geometry,
-    CyclesRender_PT_light_paths,
-    CyclesRender_PT_motion_blur,
-    CyclesRender_PT_film,
-    CyclesRender_PT_performance,
-    CyclesRender_PT_layer_options,
-    CyclesRender_PT_layer_passes,
-    CyclesRender_PT_views,
-    CyclesRender_PT_denoising,
-    Cycles_PT_post_processing,
-    CyclesCamera_PT_dof,
-    Cycles_PT_context_material,
-    CyclesObject_PT_motion_blur,
-    CyclesObject_PT_cycles_settings,
+    CYCLES_RENDER_PT_sampling,
+    CYCLES_RENDER_PT_geometry,
+    CYCLES_RENDER_PT_light_paths,
+    CYCLES_RENDER_PT_motion_blur,
+    CYCLES_RENDER_PT_film,
+    CYCLES_RENDER_PT_performance,
+    CYCLES_RENDER_PT_layer_options,
+    CYCLES_RENDER_PT_layer_passes,
+    CYCLES_RENDER_PT_views,
+    CYCLES_RENDER_PT_denoising,
+    CYCLES_PT_post_processing,
+    CYCLES_CAMERA_PT_dof,
+    CYCLES_PT_context_material,
+    CYCLES_OBJECT_PT_motion_blur,
+    CYCLES_OBJECT_PT_cycles_settings,
     CYCLES_OT_use_shading_nodes,
-    CyclesLamp_PT_preview,
-    CyclesLamp_PT_lamp,
-    CyclesLamp_PT_nodes,
-    CyclesLamp_PT_spot,
-    CyclesWorld_PT_preview,
-    CyclesWorld_PT_surface,
-    CyclesWorld_PT_volume,
-    CyclesWorld_PT_ambient_occlusion,
-    CyclesWorld_PT_mist,
-    CyclesWorld_PT_ray_visibility,
-    CyclesWorld_PT_settings,
-    CyclesMaterial_PT_preview,
-    CyclesMaterial_PT_surface,
-    CyclesMaterial_PT_volume,
-    CyclesMaterial_PT_displacement,
-    CyclesMaterial_PT_settings,
-    CyclesTexture_PT_context,
-    CyclesTexture_PT_node,
-    CyclesTexture_PT_mapping,
-    CyclesTexture_PT_colors,
-    CyclesParticle_PT_textures,
-    CyclesRender_PT_bake,
-    CyclesRender_PT_debug,
-    CyclesParticle_PT_CurveSettings,
-    CyclesScene_PT_simplify,
+    CYCLES_LAMP_PT_preview,
+    CYCLES_LAMP_PT_lamp,
+    CYCLES_LAMP_PT_nodes,
+    CYCLES_LAMP_PT_spot,
+    CYCLES_WORLD_PT_preview,
+    CYCLES_WORLD_PT_surface,
+    CYCLES_WORLD_PT_volume,
+    CYCLES_WORLD_PT_ambient_occlusion,
+    CYCLES_WORLD_PT_mist,
+    CYCLES_WORLD_PT_ray_visibility,
+    CYCLES_WORLD_PT_settings,
+    CYCLES_MATERIAL_PT_preview,
+    CYCLES_MATERIAL_PT_surface,
+    CYCLES_MATERIAL_PT_volume,
+    CYCLES_MATERIAL_PT_displacement,
+    CYCLES_MATERIAL_PT_settings,
+    CYCLES_TEXTURE_PT_context,
+    CYCLES_TEXTURE_PT_node,
+    CYCLES_TEXTURE_PT_mapping,
+    CYCLES_TEXTURE_PT_colors,
+    CYCLES_PARTICLE_PT_textures,
+    CYCLES_RENDER_PT_bake,
+    CYCLES_RENDER_PT_debug,
+    CYCLES_PARTICLE_PT_curve_settings,
+    CYCLES_SCENE_PT_simplify,
 )
 
 
diff --git a/intern/cycles/blender/addon/version_update.py b/intern/cycles/blender/addon/version_update.py
index b2a745500a1..efd794461d6 100644
--- a/intern/cycles/blender/addon/version_update.py
+++ b/intern/cycles/blender/addon/version_update.py
@@ -302,3 +302,16 @@ def do_versions(self):
             cscene = scene.cycles
             if not cscene.is_property_set("light_sampling_threshold"):
                 cscene.light_sampling_threshold = 0.0
+
+    if bpy.data.version <= (2, 79, 0):
+        for scene in bpy.data.scenes:
+            cscene = scene.cycles
+            # Default changes
+            if not cscene.is_property_set("aa_samples"):
+                cscene.aa_samples = 4
+            if not cscene.is_property_set("preview_aa_samples"):
+                cscene.preview_aa_samples = 4
+            if not cscene.is_property_set("blur_glossy"):
+                cscene.blur_glossy = 0.0
+            if not cscene.is_property_set("sample_clamp_indirect"):
+                cscene.sample_clamp_indirect = 0.0
diff --git a/intern/cycles/blender/blender_camera.cpp b/intern/cycles/blender/blender_camera.cpp
index 40d6b25f2b7..b29711d30d3 100644
--- a/intern/cycles/blender/blender_camera.cpp
+++ b/intern/cycles/blender/blender_camera.cpp
@@ -544,7 +544,11 @@ void BlenderSync::sync_camera_motion(BL::RenderSettings& b_render,
 
 	if(tfm != cam->matrix) {
 		VLOG(1) << "Camera " << b_ob.name() << " motion detected.";
-		if(motion_time == -1.0f) {
+		if(motion_time == 0.0f) {
+			/* When motion blur is not centered in frame, cam->matrix gets reset. */
+			cam->matrix = tfm;
+		}
+		else if(motion_time == -1.0f) {
 			cam->motion.pre = tfm;
 			cam->use_motion = true;
 		}
@@ -573,7 +577,10 @@ void BlenderSync::sync_camera_motion(BL::RenderSettings& b_render,
 		float fov = 2.0f * atanf((0.5f * sensor_size) / bcam.lens / aspectratio);
 		if(fov != cam->fov) {
 			VLOG(1) << "Camera " << b_ob.name() << " FOV change detected.";
-			if(motion_time == -1.0f) {
+			if(motion_time == 0.0f) {
+				cam->fov = fov;
+			}
+			else if(motion_time == -1.0f) {
 				cam->fov_pre = fov;
 				cam->use_perspective_motion = true;
 			}
diff --git a/intern/cycles/blender/blender_mesh.cpp b/intern/cycles/blender/blender_mesh.cpp
index 3ebe2d8cf34..4091c44d379 100644
--- a/intern/cycles/blender/blender_mesh.cpp
+++ b/intern/cycles/blender/blender_mesh.cpp
@@ -50,8 +50,7 @@ enum {
  * Two triangles has vertex indices in the original Blender-side face.
  * If face is already a quad tri_b will not be initialized.
  */
-inline void face_split_tri_indices(const int num_verts,
-                                   const int face_flag,
+inline void face_split_tri_indices(const int face_flag,
                                    int tri_a[3],
                                    int tri_b[3])
 {
@@ -59,36 +58,37 @@ inline void face_split_tri_indices(const int num_verts,
 		tri_a[0] = 0;
 		tri_a[1] = 1;
 		tri_a[2] = 3;
-		if(num_verts == 4) {
-			tri_b[0] = 2;
-			tri_b[1] = 3;
-			tri_b[2] = 1;
-		}
+
+		tri_b[0] = 2;
+		tri_b[1] = 3;
+		tri_b[2] = 1;
 	}
-	else /*if(face_flag & FACE_FLAG_DIVIDE_13)*/ {
+	else {
+		/* Quad with FACE_FLAG_DIVIDE_13 or single triangle. */
 		tri_a[0] = 0;
 		tri_a[1] = 1;
 		tri_a[2] = 2;
-		if(num_verts == 4) {
-			tri_b[0] = 0;
-			tri_b[1] = 2;
-			tri_b[2] = 3;
-		}
+
+		tri_b[0] = 0;
+		tri_b[1] = 2;
+		tri_b[2] = 3;
 	}
 }
 
 /* Tangent Space */
 
 struct MikkUserData {
-	MikkUserData(const BL::Mesh& mesh_,
-	             BL::MeshTextureFaceLayer *layer_,
-	             int num_faces_)
-	: mesh(mesh_), layer(layer_), num_faces(num_faces_)
+	MikkUserData(const BL::Mesh& b_mesh,
+	             BL::MeshTextureFaceLayer *layer,
+	             int num_faces)
+	        : b_mesh(b_mesh),
+	          layer(layer),
+	          num_faces(num_faces)
 	{
 		tangent.resize(num_faces*4);
 	}
 
-	BL::Mesh mesh;
+	BL::Mesh b_mesh;
 	BL::MeshTextureFaceLayer *layer;
 	int num_faces;
 	vector<float4> tangent;
@@ -103,7 +103,7 @@ static int mikk_get_num_faces(const SMikkTSpaceContext *context)
 static int mikk_get_num_verts_of_face(const SMikkTSpaceContext *context, const int face_num)
 {
 	MikkUserData *userdata = (MikkUserData*)context->m_pUserData;
-	BL::MeshTessFace f = userdata->mesh.tessfaces[face_num];
+	BL::MeshTessFace f = userdata->b_mesh.tessfaces[face_num];
 	int4 vi = get_int4(f.vertices_raw());
 
 	return (vi[3] == 0)? 3: 4;
@@ -112,9 +112,9 @@ static int mikk_get_num_verts_of_face(const SMikkTSpaceContext *context, const i
 static void mikk_get_position(const SMikkTSpaceContext *context, float P[3], const int face_num, const int vert_num)
 {
 	MikkUserData *userdata = (MikkUserData*)context->m_pUserData;
-	BL::MeshTessFace f = userdata->mesh.tessfaces[face_num];
+	BL::MeshTessFace f = userdata->b_mesh.tessfaces[face_num];
 	int4 vi = get_int4(f.vertices_raw());
-	BL::MeshVertex v = userdata->mesh.vertices[vi[vert_num]];
+	BL::MeshVertex v = userdata->b_mesh.vertices[vi[vert_num]];
 	float3 vP = get_float3(v.co());
 
 	P[0] = vP.x;
@@ -148,9 +148,9 @@ static void mikk_get_texture_coordinate(const SMikkTSpaceContext *context, float
 		uv[1] = tfuv.y;
 	}
 	else {
-		int vert_idx = userdata->mesh.tessfaces[face_num].vertices()[vert_num];
+		int vert_idx = userdata->b_mesh.tessfaces[face_num].vertices()[vert_num];
 		float3 orco =
-			get_float3(userdata->mesh.vertices[vert_idx].undeformed_co());
+			get_float3(userdata->b_mesh.vertices[vert_idx].undeformed_co());
 		float2 tmp = map_to_sphere(make_float3(orco[0], orco[1], orco[2]));
 		uv[0] = tmp.x;
 		uv[1] = tmp.y;
@@ -160,12 +160,12 @@ static void mikk_get_texture_coordinate(const SMikkTSpaceContext *context, float
 static void mikk_get_normal(const SMikkTSpaceContext *context, float N[3], const int face_num, const int vert_num)
 {
 	MikkUserData *userdata = (MikkUserData*)context->m_pUserData;
-	BL::MeshTessFace f = userdata->mesh.tessfaces[face_num];
+	BL::MeshTessFace f = userdata->b_mesh.tessfaces[face_num];
 	float3 vN;
 
 	if(f.use_smooth()) {
 		int4 vi = get_int4(f.vertices_raw());
-		BL::MeshVertex v = userdata->mesh.vertices[vi[vert_num]];
+		BL::MeshVertex v = userdata->b_mesh.vertices[vi[vert_num]];
 		vN = get_float3(v.normal());
 	}
 	else {
@@ -250,7 +250,7 @@ static void mikk_compute_tangents(BL::Mesh& b_mesh,
 
 	for(int i = 0; i < nverts.size(); i++) {
 		int tri_a[3], tri_b[3];
-		face_split_tri_indices(nverts[i], face_flags[i], tri_a, tri_b);
+		face_split_tri_indices(face_flags[i], tri_a, tri_b);
 
 		tangent[0] = float4_to_float3(userdata.tangent[i*4 + tri_a[0]]);
 		tangent[1] = float4_to_float3(userdata.tangent[i*4 + tri_a[1]]);
@@ -376,7 +376,7 @@ static void attr_create_vertex_color(Scene *scene,
 
 			for(l->data.begin(c); c != l->data.end(); ++c, ++i) {
 				int tri_a[3], tri_b[3];
-				face_split_tri_indices(nverts[i], face_flags[i], tri_a, tri_b);
+				face_split_tri_indices(face_flags[i], tri_a, tri_b);
 
 				uchar4 colors[4];
 				colors[0] = color_float_to_byte(color_srgb_to_scene_linear_v3(get_float3(c->color1())));
@@ -469,7 +469,7 @@ static void attr_create_uv_map(Scene *scene,
 
 				for(l->data.begin(t); t != l->data.end(); ++t, ++i) {
 					int tri_a[3], tri_b[3];
-					face_split_tri_indices(nverts[i], face_flags[i], tri_a, tri_b);
+					face_split_tri_indices(face_flags[i], tri_a, tri_b);
 
 					float3 uvs[4];
 					uvs[0] = get_float3(t->uv1());
@@ -719,6 +719,11 @@ static void create_mesh(Scene *scene,
 	int numngons = 0;
 	bool use_loop_normals = b_mesh.use_auto_smooth() && (mesh->subdivision_type != Mesh::SUBDIVISION_CATMULL_CLARK);
 
+	/* If no faces, create empty mesh. */
+	if(numfaces == 0) {
+		return;
+	}
+
 	BL::Mesh::vertices_iterator v;
 	BL::Mesh::tessfaces_iterator f;
 	BL::Mesh::polygons_iterator p;
@@ -1079,7 +1084,7 @@ Mesh *BlenderSync::sync_mesh(BL::Object& b_ob,
 			}
 
 			/* free derived mesh */
-			b_data.meshes.remove(b_mesh, false);
+			b_data.meshes.remove(b_mesh, false, true, false);
 		}
 	}
 	mesh->geometry_flags = requested_geometry_flags;
@@ -1299,7 +1304,7 @@ void BlenderSync::sync_mesh_motion(BL::Object& b_ob,
 		sync_curves(mesh, b_mesh, b_ob, true, time_index);
 
 	/* free derived mesh */
-	b_data.meshes.remove(b_mesh, false);
+	b_data.meshes.remove(b_mesh, false, true, false);
 }
 
 CCL_NAMESPACE_END
diff --git a/intern/cycles/blender/blender_object.cpp b/intern/cycles/blender/blender_object.cpp
index a930c439370..63138c060fb 100644
--- a/intern/cycles/blender/blender_object.cpp
+++ b/intern/cycles/blender/blender_object.cpp
@@ -63,8 +63,25 @@ bool BlenderSync::object_is_mesh(BL::Object& b_ob)
 {
 	BL::ID b_ob_data = b_ob.data();
 
-	return (b_ob_data && (b_ob_data.is_a(&RNA_Mesh) ||
-		b_ob_data.is_a(&RNA_Curve) || b_ob_data.is_a(&RNA_MetaBall)));
+	if(!b_ob_data) {
+		return false;
+	}
+
+	if(b_ob.type() == BL::Object::type_CURVE) {
+		/* Skip exporting curves without faces, overhead can be
+		 * significant if there are many for path animation. */
+		BL::Curve b_curve(b_ob.data());
+
+		return (b_curve.bevel_object() ||
+		        b_curve.extrude() != 0.0f ||
+		        b_curve.bevel_depth() != 0.0f ||
+		        b_ob.modifiers.length());
+	}
+	else {
+		return (b_ob_data.is_a(&RNA_Mesh) ||
+		        b_ob_data.is_a(&RNA_Curve) ||
+		        b_ob_data.is_a(&RNA_MetaBall));
+	}
 }
 
 bool BlenderSync::object_is_light(BL::Object& b_ob)
@@ -268,6 +285,29 @@ Object *BlenderSync::sync_object(BL::Object& b_parent,
 		return NULL;
 	}
 
+	/* Visibility flags for both parent and child. */
+	bool use_holdout = (layer_flag & render_layer.holdout_layer) != 0;
+	uint visibility = object_ray_visibility(b_ob) & PATH_RAY_ALL_VISIBILITY;
+
+	if(b_parent.ptr.data != b_ob.ptr.data) {
+		visibility &= object_ray_visibility(b_parent);
+	}
+
+	/* Make holdout objects on excluded layer invisible for non-camera rays. */
+	if(use_holdout && (layer_flag & render_layer.exclude_layer)) {
+		visibility &= ~(PATH_RAY_ALL_VISIBILITY - PATH_RAY_CAMERA);
+	}
+
+	/* Hide objects not on render layer from camera rays. */
+	if(!(layer_flag & render_layer.layer)) {
+		visibility &= ~PATH_RAY_CAMERA;
+	}
+
+	/* Don't export completely invisible objects. */
+	if(visibility == 0) {
+		return NULL;
+	}
+
 	/* key to lookup object */
 	ObjectKey key(b_parent, persistent_id, b_ob);
 	Object *object;
@@ -308,8 +348,6 @@ Object *BlenderSync::sync_object(BL::Object& b_parent,
 	if(object_map.sync(&object, b_ob, b_parent, key))
 		object_updated = true;
 	
-	bool use_holdout = (layer_flag & render_layer.holdout_layer) != 0;
-	
 	/* mesh sync */
 	object->mesh = sync_mesh(b_ob, object_updated, hide_tris);
 
@@ -322,22 +360,6 @@ Object *BlenderSync::sync_object(BL::Object& b_parent,
 		object_updated = true;
 	}
 
-	/* visibility flags for both parent and child */
-	uint visibility = object_ray_visibility(b_ob) & PATH_RAY_ALL_VISIBILITY;
-	if(b_parent.ptr.data != b_ob.ptr.data) {
-		visibility &= object_ray_visibility(b_parent);
-	}
-
-	/* make holdout objects on excluded layer invisible for non-camera rays */
-	if(use_holdout && (layer_flag & render_layer.exclude_layer)) {
-		visibility &= ~(PATH_RAY_ALL_VISIBILITY - PATH_RAY_CAMERA);
-	}
-
-	/* hide objects not on render layer from camera rays */
-	if(!(layer_flag & render_layer.layer)) {
-		visibility &= ~PATH_RAY_CAMERA;
-	}
-
 	if(visibility != object->visibility) {
 		object->visibility = visibility;
 		object_updated = true;
diff --git a/intern/cycles/blender/blender_python.cpp b/intern/cycles/blender/blender_python.cpp
index 54973fd1b7f..e268c9a0d35 100644
--- a/intern/cycles/blender/blender_python.cpp
+++ b/intern/cycles/blender/blender_python.cpp
@@ -60,6 +60,8 @@ bool debug_flags_sync_from_scene(BL::Scene b_scene)
 	/* Backup some settings for comparison. */
 	DebugFlags::OpenCL::DeviceType opencl_device_type = flags.opencl.device_type;
 	DebugFlags::OpenCL::KernelType opencl_kernel_type = flags.opencl.kernel_type;
+	/* Synchronize shared flags. */
+	flags.viewport_static_bvh = get_enum(cscene, "debug_bvh_type");
 	/* Synchronize CPU flags. */
 	flags.cpu.avx2 = get_boolean(cscene, "debug_use_cpu_avx2");
 	flags.cpu.avx = get_boolean(cscene, "debug_use_cpu_avx");
diff --git a/intern/cycles/blender/blender_session.cpp b/intern/cycles/blender/blender_session.cpp
index 2b5dd5eadea..12de3da063f 100644
--- a/intern/cycles/blender/blender_session.cpp
+++ b/intern/cycles/blender/blender_session.cpp
@@ -129,9 +129,9 @@ void BlenderSession::create_session()
 	scene = new Scene(scene_params, session_params.device);
 
 	/* setup callbacks for builtin image support */
-	scene->image_manager->builtin_image_info_cb = function_bind(&BlenderSession::builtin_image_info, this, _1, _2, _3, _4, _5, _6, _7);
-	scene->image_manager->builtin_image_pixels_cb = function_bind(&BlenderSession::builtin_image_pixels, this, _1, _2, _3, _4);
-	scene->image_manager->builtin_image_float_pixels_cb = function_bind(&BlenderSession::builtin_image_float_pixels, this, _1, _2, _3, _4);
+	scene->image_manager->builtin_image_info_cb = function_bind(&BlenderSession::builtin_image_info, this, _1, _2, _3, _4, _5, _6, _7, _8);
+	scene->image_manager->builtin_image_pixels_cb = function_bind(&BlenderSession::builtin_image_pixels, this, _1, _2, _3, _4, _5);
+	scene->image_manager->builtin_image_float_pixels_cb = function_bind(&BlenderSession::builtin_image_float_pixels, this, _1, _2, _3, _4, _5);
 
 	/* create session */
 	session = new Session(session_params);
@@ -1013,7 +1013,8 @@ void BlenderSession::builtin_image_info(const string &builtin_name,
                                         int &width,
                                         int &height,
                                         int &depth,
-                                        int &channels)
+                                        int &channels,
+                                        bool& free_cache)
 {
 	/* empty image */
 	is_float = false;
@@ -1021,6 +1022,7 @@ void BlenderSession::builtin_image_info(const string &builtin_name,
 	height = 1;
 	depth = 0;
 	channels = 0;
+	free_cache = false;
 
 	if(!builtin_data)
 		return;
@@ -1034,6 +1036,7 @@ void BlenderSession::builtin_image_info(const string &builtin_name,
 		/* image data */
 		BL::Image b_image(b_id);
 
+		free_cache = !b_image.has_data();
 		is_float = b_image.is_float();
 		width = b_image.size()[0];
 		height = b_image.size()[1];
@@ -1094,7 +1097,8 @@ void BlenderSession::builtin_image_info(const string &builtin_name,
 bool BlenderSession::builtin_image_pixels(const string &builtin_name,
                                           void *builtin_data,
                                           unsigned char *pixels,
-                                          const size_t pixels_size)
+                                          const size_t pixels_size,
+                                          const bool free_cache)
 {
 	if(!builtin_data) {
 		return false;
@@ -1115,7 +1119,6 @@ bool BlenderSession::builtin_image_pixels(const string &builtin_name,
 
 	if(image_pixels && num_pixels * channels == pixels_size) {
 		memcpy(pixels, image_pixels, pixels_size * sizeof(unsigned char));
-		MEM_freeN(image_pixels);
 	}
 	else {
 		if(channels == 1) {
@@ -1134,6 +1137,16 @@ bool BlenderSession::builtin_image_pixels(const string &builtin_name,
 			}
 		}
 	}
+
+	if(image_pixels) {
+		MEM_freeN(image_pixels);
+	}
+
+	/* Free image buffers to save memory during render. */
+	if(free_cache) {
+		b_image.buffers_free();
+	}
+
 	/* Premultiply, byte images are always straight for Blender. */
 	unsigned char *cp = pixels;
 	for(size_t i = 0; i < num_pixels; i++, cp += channels) {
@@ -1147,7 +1160,8 @@ bool BlenderSession::builtin_image_pixels(const string &builtin_name,
 bool BlenderSession::builtin_image_float_pixels(const string &builtin_name,
                                                 void *builtin_data,
                                                 float *pixels,
-                                                const size_t pixels_size)
+                                                const size_t pixels_size,
+                                                const bool free_cache)
 {
 	if(!builtin_data) {
 		return false;
@@ -1172,7 +1186,6 @@ bool BlenderSession::builtin_image_float_pixels(const string &builtin_name,
 
 		if(image_pixels && num_pixels * channels == pixels_size) {
 			memcpy(pixels, image_pixels, pixels_size * sizeof(float));
-			MEM_freeN(image_pixels);
 		}
 		else {
 			if(channels == 1) {
@@ -1192,6 +1205,15 @@ bool BlenderSession::builtin_image_float_pixels(const string &builtin_name,
 			}
 		}
 
+		if(image_pixels) {
+			MEM_freeN(image_pixels);
+		}
+
+		/* Free image buffers to save memory during render. */
+		if(free_cache) {
+			b_image.buffers_free();
+		}
+
 		return true;
 	}
 	else if(b_id.is_a(&RNA_Object)) {
diff --git a/intern/cycles/blender/blender_session.h b/intern/cycles/blender/blender_session.h
index 536808c5b18..cbd2303d282 100644
--- a/intern/cycles/blender/blender_session.h
+++ b/intern/cycles/blender/blender_session.h
@@ -156,15 +156,18 @@ protected:
 	                        int &width,
 	                        int &height,
 	                        int &depth,
-	                        int &channels);
+	                        int &channels,
+	                        bool &free_cache);
 	bool builtin_image_pixels(const string &builtin_name,
 	                          void *builtin_data,
 	                          unsigned char *pixels,
-	                          const size_t pixels_size);
+	                          const size_t pixels_size,
+	                          const bool free_cache);
 	bool builtin_image_float_pixels(const string &builtin_name,
 	                                void *builtin_data,
 	                                float *pixels,
-	                                const size_t pixels_size);
+	                                const size_t pixels_size,
+	                                const bool free_cache);
 
 	/* Update tile manager to reflect resumable render settings. */
 	void update_resumable_tile_manager(int num_samples);
diff --git a/intern/cycles/blender/blender_sync.cpp b/intern/cycles/blender/blender_sync.cpp
index 3a00384458a..42e3721883f 100644
--- a/intern/cycles/blender/blender_sync.cpp
+++ b/intern/cycles/blender/blender_sync.cpp
@@ -234,7 +234,6 @@ void BlenderSync::sync_integrator()
 	Integrator *integrator = scene->integrator;
 	Integrator previntegrator = *integrator;
 
-	integrator->min_bounce = get_int(cscene, "min_bounces");
 	integrator->max_bounce = get_int(cscene, "max_bounces");
 
 	integrator->max_diffuse_bounce = get_int(cscene, "diffuse_bounces");
@@ -243,8 +242,6 @@ void BlenderSync::sync_integrator()
 	integrator->max_volume_bounce = get_int(cscene, "volume_bounces");
 
 	integrator->transparent_max_bounce = get_int(cscene, "transparent_max_bounces");
-	integrator->transparent_min_bounce = get_int(cscene, "transparent_min_bounces");
-	integrator->transparent_shadows = get_boolean(cscene, "use_transparent_shadows");
 
 	integrator->volume_max_steps = get_int(cscene, "volume_max_steps");
 	integrator->volume_step_size = get_float(cscene, "volume_step_size");
@@ -629,14 +626,10 @@ SceneParams BlenderSync::get_scene_params(BL::Scene& b_scene,
 	else if(shadingsystem == 1)
 		params.shadingsystem = SHADINGSYSTEM_OSL;
 	
-	if(background)
+	if(background || DebugFlags().viewport_static_bvh)
 		params.bvh_type = SceneParams::BVH_STATIC;
 	else
-		params.bvh_type = (SceneParams::BVHType)get_enum(
-		        cscene,
-		        "debug_bvh_type",
-		        SceneParams::BVH_NUM_TYPES,
-		        SceneParams::BVH_STATIC);
+		params.bvh_type = SceneParams::BVH_DYNAMIC;
 
 	params.use_bvh_spatial_split = RNA_boolean_get(&cscene, "debug_use_spatial_splits");
 	params.use_bvh_unaligned_nodes = RNA_boolean_get(&cscene, "debug_use_hair_bvh");
@@ -810,6 +803,7 @@ SessionParams BlenderSync::get_session_params(BL::RenderEngine& b_engine,
 	}
 
 	params.start_resolution = get_int(cscene, "preview_start_resolution");
+	params.pixel_size = b_engine.get_preview_pixel_size(b_scene);
 
 	/* other parameters */
 	if(b_scene.render().threads_mode() == BL::RenderSettings::threads_mode_FIXED)
@@ -830,6 +824,7 @@ SessionParams BlenderSync::get_session_params(BL::RenderEngine& b_engine,
 			params.progressive = false;
 
 		params.start_resolution = INT_MAX;
+		params.pixel_size = 1;
 	}
 	else
 		params.progressive = true;
diff --git a/intern/cycles/blender/blender_util.h b/intern/cycles/blender/blender_util.h
index ebbf325f95b..363e19f7a20 100644
--- a/intern/cycles/blender/blender_util.h
+++ b/intern/cycles/blender/blender_util.h
@@ -51,8 +51,8 @@ static inline BL::Mesh object_to_mesh(BL::BlendData& data,
                                       bool calc_undeformed,
                                       Mesh::SubdivisionType subdivision_type)
 {
-	bool subsurf_mod_show_render;
-	bool subsurf_mod_show_viewport;
+	bool subsurf_mod_show_render = false;
+	bool subsurf_mod_show_viewport = false;
 
 	if(subdivision_type != Mesh::SUBDIVISION_NONE) {
 		BL::Modifier subsurf_mod = object.modifiers[object.modifiers.length()-1];
diff --git a/intern/cycles/bvh/bvh.cpp b/intern/cycles/bvh/bvh.cpp
index 33143e2d8aa..0ad3c8a7429 100644
--- a/intern/cycles/bvh/bvh.cpp
+++ b/intern/cycles/bvh/bvh.cpp
@@ -153,7 +153,6 @@ void BVH::pack_primitives()
 		if(pack.prim_index[i] != -1) {
 			int tob = pack.prim_object[i];
 			Object *ob = objects[tob];
-
 			if((pack.prim_type[i] & PRIMITIVE_ALL_TRIANGLE) != 0) {
 				pack_triangle(i, (float4*)&pack.prim_tri_verts[3 * prim_triangle_index]);
 				pack.prim_tri_index[i] = 3 * prim_triangle_index;
@@ -162,11 +161,10 @@ void BVH::pack_primitives()
 			else {
 				pack.prim_tri_index[i] = -1;
 			}
-
-			pack.prim_visibility[i] = ob->visibility;
-
-			if(pack.prim_type[i] & PRIMITIVE_ALL_CURVE)
+			pack.prim_visibility[i] = ob->visibility_for_tracing();
+			if(pack.prim_type[i] & PRIMITIVE_ALL_CURVE) {
 				pack.prim_visibility[i] |= PATH_RAY_CURVE;
+			}
 		}
 		else {
 			pack.prim_tri_index[i] = -1;
diff --git a/intern/cycles/bvh/bvh2.cpp b/intern/cycles/bvh/bvh2.cpp
index 340ba7dcf53..9aa8e71dfd0 100644
--- a/intern/cycles/bvh/bvh2.cpp
+++ b/intern/cycles/bvh/bvh2.cpp
@@ -312,10 +312,8 @@ void BVH2::refit_node(int idx, bool leaf, BoundBox& bbox, uint& visibility)
 					}
 				}
 			}
-
-			visibility |= ob->visibility;
+			visibility |= ob->visibility_for_tracing();
 		}
-
 		/* TODO(sergey): De-duplicate with pack_leaf(). */
 		float4 leaf_data[BVH_NODE_LEAF_SIZE];
 		leaf_data[0].x = __int_as_float(c0);
diff --git a/intern/cycles/bvh/bvh4.cpp b/intern/cycles/bvh/bvh4.cpp
index 5034ab811d5..777de20423b 100644
--- a/intern/cycles/bvh/bvh4.cpp
+++ b/intern/cycles/bvh/bvh4.cpp
@@ -242,21 +242,21 @@ void BVH4::pack_unaligned_node(int idx,
 		 * so kernel might safely assume there are always 4 child nodes.
 		 */
 
-		data[1][i] = 1.0f;
-		data[2][i] = 0.0f;
-		data[3][i] = 0.0f;
+		data[1][i] = NAN;
+		data[2][i] = NAN;
+		data[3][i] = NAN;
 
-		data[4][i] = 0.0f;
-		data[5][i] = 0.0f;
-		data[6][i] = 0.0f;
+		data[4][i] = NAN;
+		data[5][i] = NAN;
+		data[6][i] = NAN;
 
-		data[7][i] = 0.0f;
-		data[8][i] = 0.0f;
-		data[9][i] = 0.0f;
+		data[7][i] = NAN;
+		data[8][i] = NAN;
+		data[9][i] = NAN;
 
-		data[10][i] = -FLT_MAX;
-		data[11][i] = -FLT_MAX;
-		data[12][i] = -FLT_MAX;
+		data[10][i] = NAN;
+		data[11][i] = NAN;
+		data[12][i] = NAN;
 
 		data[13][i] = __int_as_float(0);
 	}
@@ -438,10 +438,8 @@ void BVH4::refit_node(int idx, bool leaf, BoundBox& bbox, uint& visibility)
 					}
 				}
 			}
-
-			visibility |= ob->visibility;
+			visibility |= ob->visibility_for_tracing();
 		}
-
 		/* TODO(sergey): This is actually a copy of pack_leaf(),
 		 * but this chunk of code only knows actual data and has
 		 * no idea about BVHNode.
diff --git a/intern/cycles/bvh/bvh_build.cpp b/intern/cycles/bvh/bvh_build.cpp
index 1880964355c..649ce52da05 100644
--- a/intern/cycles/bvh/bvh_build.cpp
+++ b/intern/cycles/bvh/bvh_build.cpp
@@ -529,7 +529,9 @@ BVHNode* BVHBuild::run()
 			        << "  Allocation slop factor: "
 			               << ((prim_type.capacity() != 0)
 			                       ? (float)prim_type.size() / prim_type.capacity()
-			                       : 1.0f) << "\n";
+			                       : 1.0f) << "\n"
+			        << "  Maximum depth: "
+			        << string_human_readable_number(rootnode->getSubtreeSize(BVH_STAT_DEPTH))  << "\n";
 		}
 	}
 
@@ -671,7 +673,7 @@ BVHNode* BVHBuild::build_node(const BVHObjectBinning& range, int level)
 				return create_leaf_node(range, references);
 			}
 		}
-		/* Check whether unaligned split is better than the regulat one. */
+		/* Check whether unaligned split is better than the regular one. */
 		if(unalignedSplitSAH < splitSAH) {
 			do_unalinged_split = true;
 		}
@@ -865,7 +867,7 @@ BVHNode *BVHBuild::create_object_leaf_nodes(const BVHReference *ref, int start,
 			prim_time[start] = make_float2(ref->time_from(), ref->time_to());
 		}
 
-		uint visibility = objects[ref->prim_object()]->visibility;
+		const uint visibility = objects[ref->prim_object()]->visibility_for_tracing();
 		BVHNode *leaf_node =  new LeafNode(ref->bounds(), visibility, start, start+1);
 		leaf_node->time_from = ref->time_from();
 		leaf_node->time_to = ref->time_to();
@@ -939,7 +941,7 @@ BVHNode* BVHBuild::create_leaf_node(const BVHRange& range,
 			                                         ref.time_to()));
 
 			bounds[type_index].grow(ref.bounds());
-			visibility[type_index] |= objects[ref.prim_object()]->visibility;
+			visibility[type_index] |= objects[ref.prim_object()]->visibility_for_tracing();
 			if(ref.prim_type() & PRIMITIVE_ALL_CURVE) {
 				visibility[type_index] |= PATH_RAY_CURVE;
 			}
@@ -1040,7 +1042,6 @@ BVHNode* BVHBuild::create_leaf_node(const BVHRange& range,
 		 */
 		start_index = spatial_free_index;
 		spatial_free_index += range.size();
-
 		/* Extend an array when needed. */
 		const size_t range_end = start_index + range.size();
 		if(prim_type.size() < range_end) {
@@ -1066,8 +1067,6 @@ BVHNode* BVHBuild::create_leaf_node(const BVHRange& range,
 				prim_time.resize(range_end);
 			}
 		}
-		spatial_spin_lock.unlock();
-
 		/* Perform actual data copy. */
 		if(new_leaf_data_size > 0) {
 			memcpy(&prim_type[start_index], &local_prim_type[0], new_leaf_data_size);
@@ -1077,6 +1076,7 @@ BVHNode* BVHBuild::create_leaf_node(const BVHRange& range,
 				memcpy(&prim_time[start_index], &local_prim_time[0], sizeof(float2)*num_new_leaf_data);
 			}
 		}
+		spatial_spin_lock.unlock();
 	}
 	else {
 		/* For the regular BVH builder we simply copy new data starting at the
diff --git a/intern/cycles/bvh/bvh_node.cpp b/intern/cycles/bvh/bvh_node.cpp
index 4237c62ab5b..ab6df4d265d 100644
--- a/intern/cycles/bvh/bvh_node.cpp
+++ b/intern/cycles/bvh/bvh_node.cpp
@@ -132,6 +132,17 @@ int BVHNode::getSubtreeSize(BVH_STAT stat) const
 		case BVH_STAT_UNALIGNED_LEAF_COUNT:
 			cnt = (is_leaf() && is_unaligned) ? 1 : 0;
 			break;
+		case BVH_STAT_DEPTH:
+			if(is_leaf()) {
+				cnt = 1;
+			}
+			else {
+				for(int i = 0; i < num_children(); i++) {
+					cnt = max(cnt, get_child(i)->getSubtreeSize(stat));
+				}
+				cnt += 1;
+			}
+			return cnt;
 		default:
 			assert(0); /* unknown mode */
 	}
diff --git a/intern/cycles/bvh/bvh_node.h b/intern/cycles/bvh/bvh_node.h
index 1c875f5a524..94cf5ab730c 100644
--- a/intern/cycles/bvh/bvh_node.h
+++ b/intern/cycles/bvh/bvh_node.h
@@ -38,6 +38,7 @@ enum BVH_STAT {
 	BVH_STAT_UNALIGNED_INNER_QNODE_COUNT,
 	BVH_STAT_ALIGNED_LEAF_COUNT,
 	BVH_STAT_UNALIGNED_LEAF_COUNT,
+	BVH_STAT_DEPTH,
 };
 
 class BVHParams;
diff --git a/intern/cycles/device/CMakeLists.txt b/intern/cycles/device/CMakeLists.txt
index 74ec57ddf74..3c632160fbd 100644
--- a/intern/cycles/device/CMakeLists.txt
+++ b/intern/cycles/device/CMakeLists.txt
@@ -34,11 +34,13 @@ set(SRC
 
 set(SRC_OPENCL
 	opencl/opencl.h
+	opencl/memory_manager.h
 
 	opencl/opencl_base.cpp
 	opencl/opencl_mega.cpp
 	opencl/opencl_split.cpp
 	opencl/opencl_util.cpp
+	opencl/memory_manager.cpp
 )
 
 if(WITH_CYCLES_NETWORK)
diff --git a/intern/cycles/device/device.cpp b/intern/cycles/device/device.cpp
index a54bb77f9f3..f64436aec7b 100644
--- a/intern/cycles/device/device.cpp
+++ b/intern/cycles/device/device.cpp
@@ -379,11 +379,9 @@ DeviceInfo Device::get_multi_device(vector<DeviceInfo> subdevices)
 	info.num = 0;
 
 	info.has_bindless_textures = true;
-	info.pack_images = false;
 	foreach(DeviceInfo &device, subdevices) {
 		assert(device.type == info.multi_devices[0].type);
 
-		info.pack_images |= device.pack_images;
 		info.has_bindless_textures &= device.has_bindless_textures;
 	}
 
diff --git a/intern/cycles/device/device.h b/intern/cycles/device/device.h
index b3b693c630c..26d6d380a10 100644
--- a/intern/cycles/device/device.h
+++ b/intern/cycles/device/device.h
@@ -53,7 +53,6 @@ public:
 	int num;
 	bool display_device;
 	bool advanced_shading;
-	bool pack_images;
 	bool has_bindless_textures; /* flag for GPU and Multi device */
 	bool use_split_kernel; /* Denotes if the device is going to run cycles using split-kernel */
 	vector<DeviceInfo> multi_devices;
@@ -65,7 +64,6 @@ public:
 		num = 0;
 		display_device = false;
 		advanced_shading = true;
-		pack_images = false;
 		has_bindless_textures = false;
 		use_split_kernel = false;
 	}
diff --git a/intern/cycles/device/device_cpu.cpp b/intern/cycles/device/device_cpu.cpp
index 18112437b45..6a1106328fb 100644
--- a/intern/cycles/device/device_cpu.cpp
+++ b/intern/cycles/device/device_cpu.cpp
@@ -48,6 +48,7 @@
 #include "util/util_logging.h"
 #include "util/util_map.h"
 #include "util/util_opengl.h"
+#include "util/util_optimization.h"
 #include "util/util_progress.h"
 #include "util/util_system.h"
 #include "util/util_thread.h"
@@ -119,7 +120,7 @@ public:
 		}
 #endif
 
-		if(strstr(architecture_name, logged_architecture) != 0) {
+		if(strcmp(architecture_name, logged_architecture) != 0) {
 			VLOG(1) << "Will be using " << architecture_name << " kernels.";
 			logged_architecture = architecture_name;
 		}
@@ -976,7 +977,6 @@ void device_cpu_info(vector<DeviceInfo>& devices)
 	info.id = "CPU";
 	info.num = 0;
 	info.advanced_shading = true;
-	info.pack_images = false;
 
 	devices.insert(devices.begin(), info);
 }
diff --git a/intern/cycles/device/device_cuda.cpp b/intern/cycles/device/device_cuda.cpp
index 3a29538aa13..29b5bd70789 100644
--- a/intern/cycles/device/device_cuda.cpp
+++ b/intern/cycles/device/device_cuda.cpp
@@ -111,6 +111,16 @@ public:
 	virtual int2 split_kernel_global_size(device_memory& kg, device_memory& data, DeviceTask *task);
 };
 
+/* Utility to push/pop CUDA context. */
+class CUDAContextScope {
+public:
+	CUDAContextScope(CUDADevice *device);
+	~CUDAContextScope();
+
+private:
+	CUDADevice *device;
+};
+
 class CUDADevice : public Device
 {
 public:
@@ -206,16 +216,6 @@ public:
 		cuda_error_documentation();
 	}
 
-	void cuda_push_context()
-	{
-		cuda_assert(cuCtxSetCurrent(cuContext));
-	}
-
-	void cuda_pop_context()
-	{
-		cuda_assert(cuCtxSetCurrent(NULL));
-	}
-
 	CUDADevice(DeviceInfo& info, Stats &stats, bool background_)
 	: Device(info, stats, background_)
 	{
@@ -263,7 +263,8 @@ public:
 		cuDeviceGetAttribute(&minor, CU_DEVICE_ATTRIBUTE_COMPUTE_CAPABILITY_MINOR, cuDevId);
 		cuDevArchitecture = major*100 + minor*10;
 
-		cuda_pop_context();
+		/* Pop context set by cuCtxCreate. */
+		cuCtxPopCurrent(NULL);
 	}
 
 	~CUDADevice()
@@ -519,7 +520,7 @@ public:
 			return false;
 
 		/* open module */
-		cuda_push_context();
+		CUDAContextScope scope(this);
 
 		string cubin_data;
 		CUresult result;
@@ -540,8 +541,6 @@ public:
 		if(cuda_error_(result, "cuModuleLoad"))
 			cuda_error_message(string_printf("Failed loading CUDA kernel %s.", filter_cubin.c_str()));
 
-		cuda_pop_context();
-
 		return (result == CUDA_SUCCESS);
 	}
 
@@ -556,36 +555,36 @@ public:
 
 	void mem_alloc(const char *name, device_memory& mem, MemoryType /*type*/)
 	{
+		CUDAContextScope scope(this);
+
 		if(name) {
 			VLOG(1) << "Buffer allocate: " << name << ", "
 			        << string_human_readable_number(mem.memory_size()) << " bytes. ("
 			        << string_human_readable_size(mem.memory_size()) << ")";
 		}
 
-		cuda_push_context();
 		CUdeviceptr device_pointer;
 		size_t size = mem.memory_size();
 		cuda_assert(cuMemAlloc(&device_pointer, size));
 		mem.device_pointer = (device_ptr)device_pointer;
 		mem.device_size = size;
 		stats.mem_alloc(size);
-		cuda_pop_context();
 	}
 
 	void mem_copy_to(device_memory& mem)
 	{
-		cuda_push_context();
+		CUDAContextScope scope(this);
+
 		if(mem.device_pointer)
 			cuda_assert(cuMemcpyHtoD(cuda_device_ptr(mem.device_pointer), (void*)mem.data_pointer, mem.memory_size()));
-		cuda_pop_context();
 	}
 
 	void mem_copy_from(device_memory& mem, int y, int w, int h, int elem)
 	{
+		CUDAContextScope scope(this);
 		size_t offset = elem*y*w;
 		size_t size = elem*w*h;
 
-		cuda_push_context();
 		if(mem.device_pointer) {
 			cuda_assert(cuMemcpyDtoH((uchar*)mem.data_pointer + offset,
 			                         (CUdeviceptr)(mem.device_pointer + offset), size));
@@ -593,7 +592,6 @@ public:
 		else {
 			memset((char*)mem.data_pointer + offset, 0, size);
 		}
-		cuda_pop_context();
 	}
 
 	void mem_zero(device_memory& mem)
@@ -602,18 +600,17 @@ public:
 			memset((void*)mem.data_pointer, 0, mem.memory_size());
 		}
 
-		cuda_push_context();
-		if(mem.device_pointer)
+		if(mem.device_pointer) {
+			CUDAContextScope scope(this);
 			cuda_assert(cuMemsetD8(cuda_device_ptr(mem.device_pointer), 0, mem.memory_size()));
-		cuda_pop_context();
+		}
 	}
 
 	void mem_free(device_memory& mem)
 	{
 		if(mem.device_pointer) {
-			cuda_push_context();
+			CUDAContextScope scope(this);
 			cuda_assert(cuMemFree(cuda_device_ptr(mem.device_pointer)));
-			cuda_pop_context();
 
 			mem.device_pointer = 0;
 
@@ -629,14 +626,13 @@ public:
 
 	void const_copy_to(const char *name, void *host, size_t size)
 	{
+		CUDAContextScope scope(this);
 		CUdeviceptr mem;
 		size_t bytes;
 
-		cuda_push_context();
 		cuda_assert(cuModuleGetGlobal(&mem, &bytes, cuModule, name));
 		//assert(bytes == size);
 		cuda_assert(cuMemcpyHtoD(mem, host, size));
-		cuda_pop_context();
 	}
 
 	void tex_alloc(const char *name,
@@ -644,6 +640,8 @@ public:
 	               InterpolationType interpolation,
 	               ExtensionType extension)
 	{
+		CUDAContextScope scope(this);
+
 		VLOG(1) << "Texture allocate: " << name << ", "
 		        << string_human_readable_number(mem.memory_size()) << " bytes. ("
 		        << string_human_readable_size(mem.memory_size()) << ")";
@@ -706,9 +704,7 @@ public:
 				                          tokens[3].c_str());
 			}
 
-			cuda_push_context();
 			cuda_assert(cuModuleGetTexRef(&texref, cuModule, bind_name.c_str()));
-			cuda_pop_context();
 
 			if(!texref) {
 				return;
@@ -721,8 +717,6 @@ public:
 				mem_alloc(NULL, mem, MEM_READ_ONLY);
 				mem_copy_to(mem);
 
-				cuda_push_context();
-
 				CUdeviceptr cumem;
 				size_t cubytes;
 
@@ -738,28 +732,20 @@ public:
 					uint32_t ptr = (uint32_t)mem.device_pointer;
 					cuda_assert(cuMemcpyHtoD(cumem, (void*)&ptr, cubytes));
 				}
-
-				cuda_pop_context();
 			}
 			else {
 				mem_alloc(NULL, mem, MEM_READ_ONLY);
 				mem_copy_to(mem);
 
-				cuda_push_context();
-
 				cuda_assert(cuTexRefSetAddress(NULL, texref, cuda_device_ptr(mem.device_pointer), size));
 				cuda_assert(cuTexRefSetFilterMode(texref, CU_TR_FILTER_MODE_POINT));
 				cuda_assert(cuTexRefSetFlags(texref, CU_TRSF_READ_AS_INTEGER));
-
-				cuda_pop_context();
 			}
 		}
 		/* Texture Storage */
 		else {
 			CUarray handle = NULL;
 
-			cuda_push_context();
-
 			if(mem.data_depth > 1) {
 				CUDA_ARRAY3D_DESCRIPTOR desc;
 
@@ -784,7 +770,6 @@ public:
 			}
 
 			if(!handle) {
-				cuda_pop_context();
 				return;
 			}
 
@@ -877,14 +862,10 @@ public:
 				cuda_assert(cuTexRefSetFilterMode(texref, filter_mode));
 				cuda_assert(cuTexRefSetFlags(texref, CU_TRSF_NORMALIZED_COORDINATES));
 			}
-
-			cuda_pop_context();
 		}
 
 		/* Fermi, Data and Image Textures */
 		if(!has_bindless_textures) {
-			cuda_push_context();
-
 			cuda_assert(cuTexRefSetAddressMode(texref, 0, address_mode));
 			cuda_assert(cuTexRefSetAddressMode(texref, 1, address_mode));
 			if(mem.data_depth > 1) {
@@ -892,8 +873,6 @@ public:
 			}
 
 			cuda_assert(cuTexRefSetFormat(texref, format, mem.data_elements));
-
-			cuda_pop_context();
 		}
 
 		/* Fermi and Kepler */
@@ -904,9 +883,8 @@ public:
 	{
 		if(mem.device_pointer) {
 			if(tex_interp_map[mem.device_pointer]) {
-				cuda_push_context();
+				CUDAContextScope scope(this);
 				cuArrayDestroy((CUarray)mem.device_pointer);
-				cuda_pop_context();
 
 				/* Free CUtexObject (Bindless Textures) */
 				if(info.has_bindless_textures && tex_bindless_map[mem.device_pointer]) {
@@ -960,7 +938,7 @@ public:
 		if(have_error())
 			return false;
 
-		cuda_push_context();
+		CUDAContextScope scope(this);
 
 		int4 rect = task->rect;
 		int w = align_up(rect.z-rect.x, 4);
@@ -1017,7 +995,6 @@ public:
 		CUDA_LAUNCH_KERNEL(cuNLMNormalize, normalize_args);
 		cuda_assert(cuCtxSynchronize());
 
-		cuda_pop_context();
 		return !have_error();
 	}
 
@@ -1026,7 +1003,7 @@ public:
 		if(have_error())
 			return false;
 
-		cuda_push_context();
+		CUDAContextScope scope(this);
 
 		CUfunction cuFilterConstructTransform;
 		cuda_assert(cuModuleGetFunction(&cuFilterConstructTransform, cuFilterModule, "kernel_cuda_filter_construct_transform"));
@@ -1046,7 +1023,6 @@ public:
 		CUDA_LAUNCH_KERNEL(cuFilterConstructTransform, args);
 		cuda_assert(cuCtxSynchronize());
 
-		cuda_pop_context();
 		return !have_error();
 	}
 
@@ -1058,11 +1034,11 @@ public:
 		if(have_error())
 			return false;
 
+		CUDAContextScope scope(this);
+
 		mem_zero(task->storage.XtWX);
 		mem_zero(task->storage.XtWY);
 
-		cuda_push_context();
-
 		CUfunction cuNLMCalcDifference, cuNLMBlur, cuNLMCalcWeight, cuNLMConstructGramian, cuFinalize;
 		cuda_assert(cuModuleGetFunction(&cuNLMCalcDifference,   cuFilterModule, "kernel_cuda_filter_nlm_calc_difference"));
 		cuda_assert(cuModuleGetFunction(&cuNLMBlur,             cuFilterModule, "kernel_cuda_filter_nlm_blur"));
@@ -1150,7 +1126,6 @@ public:
 		CUDA_LAUNCH_KERNEL(cuFinalize, finalize_args);
 		cuda_assert(cuCtxSynchronize());
 
-		cuda_pop_context();
 		return !have_error();
 	}
 
@@ -1161,7 +1136,7 @@ public:
 		if(have_error())
 			return false;
 
-		cuda_push_context();
+		CUDAContextScope scope(this);
 
 		CUfunction cuFilterCombineHalves;
 		cuda_assert(cuModuleGetFunction(&cuFilterCombineHalves, cuFilterModule, "kernel_cuda_filter_combine_halves"));
@@ -1179,7 +1154,6 @@ public:
 		CUDA_LAUNCH_KERNEL(cuFilterCombineHalves, args);
 		cuda_assert(cuCtxSynchronize());
 
-		cuda_pop_context();
 		return !have_error();
 	}
 
@@ -1190,7 +1164,7 @@ public:
 		if(have_error())
 			return false;
 
-		cuda_push_context();
+		CUDAContextScope scope(this);
 
 		CUfunction cuFilterDivideShadow;
 		cuda_assert(cuModuleGetFunction(&cuFilterDivideShadow, cuFilterModule, "kernel_cuda_filter_divide_shadow"));
@@ -1214,7 +1188,6 @@ public:
 		CUDA_LAUNCH_KERNEL(cuFilterDivideShadow, args);
 		cuda_assert(cuCtxSynchronize());
 
-		cuda_pop_context();
 		return !have_error();
 	}
 
@@ -1227,7 +1200,7 @@ public:
 		if(have_error())
 			return false;
 
-		cuda_push_context();
+		CUDAContextScope scope(this);
 
 		CUfunction cuFilterGetFeature;
 		cuda_assert(cuModuleGetFunction(&cuFilterGetFeature, cuFilterModule, "kernel_cuda_filter_get_feature"));
@@ -1250,7 +1223,6 @@ public:
 		CUDA_LAUNCH_KERNEL(cuFilterGetFeature, args);
 		cuda_assert(cuCtxSynchronize());
 
-		cuda_pop_context();
 		return !have_error();
 	}
 
@@ -1263,7 +1235,7 @@ public:
 		if(have_error())
 			return false;
 
-		cuda_push_context();
+		CUDAContextScope scope(this);
 
 		CUfunction cuFilterDetectOutliers;
 		cuda_assert(cuModuleGetFunction(&cuFilterDetectOutliers, cuFilterModule, "kernel_cuda_filter_detect_outliers"));
@@ -1282,7 +1254,6 @@ public:
 		CUDA_LAUNCH_KERNEL(cuFilterDetectOutliers, args);
 		cuda_assert(cuCtxSynchronize());
 
-		cuda_pop_context();
 		return !have_error();
 	}
 
@@ -1319,7 +1290,7 @@ public:
 		if(have_error())
 			return;
 
-		cuda_push_context();
+		CUDAContextScope scope(this);
 
 		CUfunction cuPathTrace;
 		CUdeviceptr d_buffer = cuda_device_ptr(rtile.buffer);
@@ -1333,8 +1304,9 @@ public:
 			cuda_assert(cuModuleGetFunction(&cuPathTrace, cuModule, "kernel_cuda_path_trace"));
 		}
 
-		if(have_error())
+		if(have_error()) {
 			return;
+		}
 
 		/* pass in parameters */
 		void *args[] = {&d_buffer,
@@ -1370,8 +1342,6 @@ public:
 		                           0, 0, args, 0));
 
 		cuda_assert(cuCtxSynchronize());
-
-		cuda_pop_context();
 	}
 
 	void film_convert(DeviceTask& task, device_ptr buffer, device_ptr rgba_byte, device_ptr rgba_half)
@@ -1379,7 +1349,7 @@ public:
 		if(have_error())
 			return;
 
-		cuda_push_context();
+		CUDAContextScope scope(this);
 
 		CUfunction cuFilmConvert;
 		CUdeviceptr d_rgba = map_pixels((rgba_byte)? rgba_byte: rgba_half);
@@ -1424,8 +1394,6 @@ public:
 		                           0, 0, args, 0));
 
 		unmap_pixels((rgba_byte)? rgba_byte: rgba_half);
-
-		cuda_pop_context();
 	}
 
 	void shader(DeviceTask& task)
@@ -1433,7 +1401,7 @@ public:
 		if(have_error())
 			return;
 
-		cuda_push_context();
+		CUDAContextScope scope(this);
 
 		CUfunction cuShader;
 		CUdeviceptr d_input = cuda_device_ptr(task.shader_input);
@@ -1498,8 +1466,6 @@ public:
 
 			task.update_progress(NULL);
 		}
-
-		cuda_pop_context();
 	}
 
 	CUdeviceptr map_pixels(device_ptr mem)
@@ -1535,7 +1501,7 @@ public:
 			pmem.w = mem.data_width;
 			pmem.h = mem.data_height;
 
-			cuda_push_context();
+			CUDAContextScope scope(this);
 
 			glGenBuffers(1, &pmem.cuPBO);
 			glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pmem.cuPBO);
@@ -1559,8 +1525,6 @@ public:
 			CUresult result = cuGraphicsGLRegisterBuffer(&pmem.cuPBOresource, pmem.cuPBO, CU_GRAPHICS_MAP_RESOURCE_FLAGS_NONE);
 
 			if(result == CUDA_SUCCESS) {
-				cuda_pop_context();
-
 				mem.device_pointer = pmem.cuTexId;
 				pixel_mem_map[mem.device_pointer] = pmem;
 
@@ -1574,8 +1538,6 @@ public:
 				glDeleteBuffers(1, &pmem.cuPBO);
 				glDeleteTextures(1, &pmem.cuTexId);
 
-				cuda_pop_context();
-
 				background = true;
 			}
 		}
@@ -1588,7 +1550,7 @@ public:
 		if(!background) {
 			PixelMem pmem = pixel_mem_map[mem.device_pointer];
 
-			cuda_push_context();
+			CUDAContextScope scope(this);
 
 			glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pmem.cuPBO);
 			uchar *pixels = (uchar*)glMapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_READ_ONLY);
@@ -1597,8 +1559,6 @@ public:
 			glUnmapBuffer(GL_PIXEL_UNPACK_BUFFER);
 			glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
 
-			cuda_pop_context();
-
 			return;
 		}
 
@@ -1611,14 +1571,12 @@ public:
 			if(!background) {
 				PixelMem pmem = pixel_mem_map[mem.device_pointer];
 
-				cuda_push_context();
+				CUDAContextScope scope(this);
 
 				cuda_assert(cuGraphicsUnregisterResource(pmem.cuPBOresource));
 				glDeleteBuffers(1, &pmem.cuPBO);
 				glDeleteTextures(1, &pmem.cuTexId);
 
-				cuda_pop_context();
-
 				pixel_mem_map.erase(pixel_mem_map.find(mem.device_pointer));
 				mem.device_pointer = 0;
 
@@ -1639,7 +1597,7 @@ public:
 			PixelMem pmem = pixel_mem_map[mem.device_pointer];
 			float *vpointer;
 
-			cuda_push_context();
+			CUDAContextScope scope(this);
 
 			/* for multi devices, this assumes the inefficient method that we allocate
 			 * all pixels on the device even though we only render to a subset */
@@ -1728,8 +1686,6 @@ public:
 			glBindTexture(GL_TEXTURE_2D, 0);
 			glDisable(GL_TEXTURE_2D);
 
-			cuda_pop_context();
-
 			return;
 		}
 
@@ -1738,6 +1694,8 @@ public:
 
 	void thread_run(DeviceTask *task)
 	{
+		CUDAContextScope scope(this);
+
 		if(task->type == DeviceTask::RENDER) {
 			RenderTile tile;
 
@@ -1805,9 +1763,7 @@ public:
 
 			shader(*task);
 
-			cuda_push_context();
 			cuda_assert(cuCtxSynchronize());
-			cuda_pop_context();
 		}
 	}
 
@@ -1828,12 +1784,11 @@ public:
 	void task_add(DeviceTask& task)
 	{
 		if(task.type == DeviceTask::FILM_CONVERT) {
+			CUDAContextScope scope(this);
+
 			/* must be done in main thread due to opengl access */
 			film_convert(task, task.buffer, task.rgba_byte, task.rgba_half);
-
-			cuda_push_context();
 			cuda_assert(cuCtxSynchronize());
-			cuda_pop_context();
 		}
 		else {
 			task_pool.push(new CUDADeviceTask(this, task));
@@ -1852,6 +1807,7 @@ public:
 
 	friend class CUDASplitKernelFunction;
 	friend class CUDASplitKernel;
+	friend class CUDAContextScope;
 };
 
 /* redefine the cuda_assert macro so it can be used outside of the CUDADevice class
@@ -1872,6 +1828,20 @@ public:
 		} \
 	} (void)0
 
+
+/* CUDA context scope. */
+
+CUDAContextScope::CUDAContextScope(CUDADevice *device)
+: device(device)
+{
+	cuda_assert(cuCtxPushCurrent(device->cuContext));
+}
+
+CUDAContextScope::~CUDAContextScope()
+{
+	cuda_assert(cuCtxPopCurrent(NULL));
+}
+
 /* split kernel */
 
 class CUDASplitKernelFunction : public SplitKernelFunction{
@@ -1889,30 +1859,24 @@ public:
 	/* enqueue the kernel, returns false if there is an error */
 	bool enqueue(const KernelDimensions &dim, void *args[])
 	{
-		device->cuda_push_context();
-
 		if(device->have_error())
 			return false;
 
+		CUDAContextScope scope(device);
+
 		/* we ignore dim.local_size for now, as this is faster */
 		int threads_per_block;
 		cuda_assert(cuFuncGetAttribute(&threads_per_block, CU_FUNC_ATTRIBUTE_MAX_THREADS_PER_BLOCK, func));
 
-		int xthreads = (int)sqrt(threads_per_block);
-		int ythreads = (int)sqrt(threads_per_block);
-
-		int xblocks = (dim.global_size[0] + xthreads - 1)/xthreads;
-		int yblocks = (dim.global_size[1] + ythreads - 1)/ythreads;
+		int xblocks = (dim.global_size[0]*dim.global_size[1] + threads_per_block - 1)/threads_per_block;
 
 		cuda_assert(cuFuncSetCacheConfig(func, CU_FUNC_CACHE_PREFER_L1));
 
 		cuda_assert(cuLaunchKernel(func,
-		                           xblocks , yblocks, 1, /* blocks */
-		                           xthreads, ythreads, 1, /* threads */
+		                           xblocks, 1, 1, /* blocks */
+		                           threads_per_block, 1, 1, /* threads */
 		                           0, 0, args, 0));
 
-		device->cuda_pop_context();
-
 		return !device->have_error();
 	}
 };
@@ -1923,12 +1887,12 @@ CUDASplitKernel::CUDASplitKernel(CUDADevice *device) : DeviceSplitKernel(device)
 
 uint64_t CUDASplitKernel::state_buffer_size(device_memory& /*kg*/, device_memory& /*data*/, size_t num_threads)
 {
+	CUDAContextScope scope(device);
+
 	device_vector<uint64_t> size_buffer;
 	size_buffer.resize(1);
 	device->mem_alloc(NULL, size_buffer, MEM_READ_WRITE);
 
-	device->cuda_push_context();
-
 	uint threads = num_threads;
 	CUdeviceptr d_size = device->cuda_device_ptr(size_buffer.device_pointer);
 
@@ -1950,8 +1914,6 @@ uint64_t CUDASplitKernel::state_buffer_size(device_memory& /*kg*/, device_memory
 	                           1, 1, 1,
 	                           0, 0, (void**)&args, 0));
 
-	device->cuda_pop_context();
-
 	device->mem_copy_from(size_buffer, 0, 1, 1, sizeof(uint64_t));
 	device->mem_free(size_buffer);
 
@@ -1969,7 +1931,7 @@ bool CUDASplitKernel::enqueue_split_kernel_data_init(const KernelDimensions& dim
                                     device_memory& use_queues_flag,
                                     device_memory& work_pool_wgs)
 {
-	device->cuda_push_context();
+	CUDAContextScope scope(device);
 
 	CUdeviceptr d_split_data = device->cuda_device_ptr(split_data.device_pointer);
 	CUdeviceptr d_ray_state = device->cuda_device_ptr(ray_state.device_pointer);
@@ -2033,26 +1995,21 @@ bool CUDASplitKernel::enqueue_split_kernel_data_init(const KernelDimensions& dim
 
 	CUDASplitKernelFunction(device, data_init).enqueue(dim, (void**)&args);
 
-	device->cuda_pop_context();
-
 	return !device->have_error();
 }
 
 SplitKernelFunction* CUDASplitKernel::get_split_kernel_function(const string& kernel_name,
                                                                 const DeviceRequestedFeatures&)
 {
+	CUDAContextScope scope(device);
 	CUfunction func;
 
-	device->cuda_push_context();
-
 	cuda_assert(cuModuleGetFunction(&func, device->cuModule, (string("kernel_cuda_") + kernel_name).data()));
 	if(device->have_error()) {
 		device->cuda_error_message(string_printf("kernel \"kernel_cuda_%s\" not found in module", kernel_name.data()));
 		return NULL;
 	}
 
-	device->cuda_pop_context();
-
 	return new CUDASplitKernelFunction(device, func);
 }
 
@@ -2063,12 +2020,11 @@ int2 CUDASplitKernel::split_kernel_local_size()
 
 int2 CUDASplitKernel::split_kernel_global_size(device_memory& kg, device_memory& data, DeviceTask * /*task*/)
 {
+	CUDAContextScope scope(device);
 	size_t free;
 	size_t total;
 
-	device->cuda_push_context();
 	cuda_assert(cuMemGetInfo(&free, &total));
-	device->cuda_pop_context();
 
 	VLOG(1) << "Maximum device allocation size: "
 	        << string_human_readable_number(free) << " bytes. ("
@@ -2127,18 +2083,34 @@ Device *device_cuda_create(DeviceInfo& info, Stats &stats, bool background)
 	return new CUDADevice(info, stats, background);
 }
 
-void device_cuda_info(vector<DeviceInfo>& devices)
+static CUresult device_cuda_safe_init()
 {
-	CUresult result;
-	int count = 0;
+#ifdef _WIN32
+	__try {
+		return cuInit(0);
+	}
+	__except(EXCEPTION_EXECUTE_HANDLER) {
+		/* Ignore crashes inside the CUDA driver and hope we can
+		 * survive even with corrupted CUDA installs. */
+		fprintf(stderr, "Cycles CUDA: driver crashed, continuing without CUDA.\n");
+	}
 
-	result = cuInit(0);
+	return CUDA_ERROR_NO_DEVICE;
+#else
+	return cuInit(0);
+#endif
+}
+
+void device_cuda_info(vector<DeviceInfo>& devices)
+{
+	CUresult result = device_cuda_safe_init();
 	if(result != CUDA_SUCCESS) {
 		if(result != CUDA_ERROR_NO_DEVICE)
 			fprintf(stderr, "CUDA cuInit: %s\n", cuewErrorString(result));
 		return;
 	}
 
+	int count = 0;
 	result = cuDeviceGetCount(&count);
 	if(result != CUDA_SUCCESS) {
 		fprintf(stderr, "CUDA cuDeviceGetCount: %s\n", cuewErrorString(result));
@@ -2168,7 +2140,6 @@ void device_cuda_info(vector<DeviceInfo>& devices)
 
 		info.advanced_shading = (major >= 2);
 		info.has_bindless_textures = (major >= 3);
-		info.pack_images = false;
 
 		int pci_location[3] = {0, 0, 0};
 		cuDeviceGetAttribute(&pci_location[0], CU_DEVICE_ATTRIBUTE_PCI_DOMAIN_ID, num);
@@ -2196,7 +2167,7 @@ void device_cuda_info(vector<DeviceInfo>& devices)
 
 string device_cuda_capabilities(void)
 {
-	CUresult result = cuInit(0);
+	CUresult result = device_cuda_safe_init();
 	if(result != CUDA_SUCCESS) {
 		if(result != CUDA_ERROR_NO_DEVICE) {
 			return string("Error initializing CUDA: ") + cuewErrorString(result);
diff --git a/intern/cycles/device/device_network.cpp b/intern/cycles/device/device_network.cpp
index 66758954f44..571ba9465ca 100644
--- a/intern/cycles/device/device_network.cpp
+++ b/intern/cycles/device/device_network.cpp
@@ -344,7 +344,6 @@ void device_network_info(vector<DeviceInfo>& devices)
 	info.id = "NETWORK";
 	info.num = 0;
 	info.advanced_shading = true; /* todo: get this info from device */
-	info.pack_images = false;
 
 	devices.push_back(info);
 }
diff --git a/intern/cycles/device/device_opencl.cpp b/intern/cycles/device/device_opencl.cpp
index 681b8214b03..9d89decaaaf 100644
--- a/intern/cycles/device/device_opencl.cpp
+++ b/intern/cycles/device/device_opencl.cpp
@@ -73,8 +73,34 @@ bool device_opencl_init(void)
 	return result;
 }
 
+
+static cl_int device_opencl_get_num_platforms_safe(cl_uint *num_platforms)
+{
+#ifdef _WIN32
+	__try {
+		return clGetPlatformIDs(0, NULL, num_platforms);
+	}
+	__except(EXCEPTION_EXECUTE_HANDLER) {
+		/* Ignore crashes inside the OpenCL driver and hope we can
+		 * survive even with corrupted OpenCL installs. */
+		fprintf(stderr, "Cycles OpenCL: driver crashed, continuing without OpenCL.\n");
+	}
+
+	*num_platforms = 0;
+	return CL_DEVICE_NOT_FOUND;
+#else
+	return clGetPlatformIDs(0, NULL, num_platforms);
+#endif
+}
+
 void device_opencl_info(vector<DeviceInfo>& devices)
 {
+	cl_uint num_platforms = 0;
+	device_opencl_get_num_platforms_safe(&num_platforms);
+	if(num_platforms == 0) {
+		return;
+	}
+
 	vector<OpenCLPlatformDevice> usable_devices;
 	OpenCLInfo::get_usable_devices(&usable_devices);
 	/* Devices are numbered consecutively across platforms. */
@@ -95,7 +121,6 @@ void device_opencl_info(vector<DeviceInfo>& devices)
 		/* We don't know if it's used for display, but assume it is. */
 		info.display_device = true;
 		info.advanced_shading = OpenCLInfo::kernel_use_advanced_shading(platform_name);
-		info.pack_images = true;
 		info.use_split_kernel = OpenCLInfo::kernel_use_split(platform_name,
 		                                                     device_type);
 		info.id = string("OPENCL_") + platform_name + "_" + device_name + "_" + hardware_id;
@@ -114,7 +139,7 @@ string device_opencl_capabilities(void)
 	                         * it could also be nicely reported to the console.
 	                         */
 	cl_uint num_platforms = 0;
-	opencl_assert(clGetPlatformIDs(0, NULL, &num_platforms));
+	opencl_assert(device_opencl_get_num_platforms_safe(&num_platforms));
 	if(num_platforms == 0) {
 		return "No OpenCL platforms found\n";
 	}
diff --git a/intern/cycles/device/opencl/memory_manager.cpp b/intern/cycles/device/opencl/memory_manager.cpp
new file mode 100644
index 00000000000..b67dfef88aa
--- /dev/null
+++ b/intern/cycles/device/opencl/memory_manager.cpp
@@ -0,0 +1,253 @@
+/*
+ * Copyright 2011-2017 Blender Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifdef WITH_OPENCL
+
+#include "util/util_foreach.h"
+
+#include "device/opencl/opencl.h"
+#include "device/opencl/memory_manager.h"
+
+CCL_NAMESPACE_BEGIN
+
+void MemoryManager::DeviceBuffer::add_allocation(Allocation& allocation)
+{
+	allocations.push_back(&allocation);
+}
+
+void MemoryManager::DeviceBuffer::update_device_memory(OpenCLDeviceBase *device)
+{
+	bool need_realloc = false;
+
+	/* Calculate total size and remove any freed. */
+	size_t total_size = 0;
+
+	for(int i = allocations.size()-1; i >= 0; i--) {
+		Allocation* allocation = allocations[i];
+
+		/* Remove allocations that have been freed. */
+		if(!allocation->mem || allocation->mem->memory_size() == 0) {
+			allocation->device_buffer = NULL;
+			allocation->size = 0;
+
+			allocations.erase(allocations.begin()+i);
+
+			need_realloc = true;
+
+			continue;
+		}
+
+		/* Get actual size for allocation. */
+		size_t alloc_size = align_up(allocation->mem->memory_size(), 16);
+
+		if(allocation->size != alloc_size) {
+			/* Allocation is either new or resized. */
+			allocation->size = alloc_size;
+			allocation->needs_copy_to_device = true;
+
+			need_realloc = true;
+		}
+
+		total_size += alloc_size;
+	}
+
+	if(need_realloc) {
+		cl_ulong max_buffer_size;
+		clGetDeviceInfo(device->cdDevice, CL_DEVICE_MAX_MEM_ALLOC_SIZE, sizeof(cl_ulong), &max_buffer_size, NULL);
+
+		if(total_size > max_buffer_size) {
+			device->set_error("Scene too complex to fit in available memory.");
+			return;
+		}
+
+		device_memory *new_buffer = new device_memory;
+
+		new_buffer->resize(total_size);
+		device->mem_alloc(string_printf("buffer_%p", this).data(), *new_buffer, MEM_READ_ONLY);
+
+		size_t offset = 0;
+
+		foreach(Allocation* allocation, allocations) {
+			if(allocation->needs_copy_to_device) {
+				/* Copy from host to device. */
+				opencl_device_assert(device, clEnqueueWriteBuffer(device->cqCommandQueue,
+					CL_MEM_PTR(new_buffer->device_pointer),
+					CL_FALSE,
+					offset,
+					allocation->mem->memory_size(),
+					(void*)allocation->mem->data_pointer,
+					0, NULL, NULL
+				));
+
+				allocation->needs_copy_to_device = false;
+			}
+			else {
+				/* Fast copy from memory already on device. */
+				opencl_device_assert(device, clEnqueueCopyBuffer(device->cqCommandQueue,
+					CL_MEM_PTR(buffer->device_pointer),
+					CL_MEM_PTR(new_buffer->device_pointer),
+					allocation->desc.offset,
+					offset,
+					allocation->mem->memory_size(),
+					0, NULL, NULL
+				));
+			}
+
+			allocation->desc.offset = offset;
+			offset += allocation->size;
+		}
+
+		device->mem_free(*buffer);
+		delete buffer;
+
+		buffer = new_buffer;
+	}
+	else {
+		assert(total_size == buffer->data_size);
+
+		size_t offset = 0;
+
+		foreach(Allocation* allocation, allocations) {
+			if(allocation->needs_copy_to_device) {
+				/* Copy from host to device. */
+				opencl_device_assert(device, clEnqueueWriteBuffer(device->cqCommandQueue,
+					CL_MEM_PTR(buffer->device_pointer),
+					CL_FALSE,
+					offset,
+					allocation->mem->memory_size(),
+					(void*)allocation->mem->data_pointer,
+					0, NULL, NULL
+				));
+
+				allocation->needs_copy_to_device = false;
+			}
+
+			offset += allocation->size;
+		}
+	}
+
+	/* Not really necessary, but seems to improve responsiveness for some reason. */
+	clFinish(device->cqCommandQueue);
+}
+
+void MemoryManager::DeviceBuffer::free(OpenCLDeviceBase *device)
+{
+	device->mem_free(*buffer);
+}
+
+MemoryManager::DeviceBuffer* MemoryManager::smallest_device_buffer()
+{
+	DeviceBuffer* smallest = device_buffers;
+
+	foreach(DeviceBuffer& device_buffer, device_buffers) {
+		if(device_buffer.size < smallest->size) {
+			smallest = &device_buffer;
+		}
+	}
+
+	return smallest;
+}
+
+MemoryManager::MemoryManager(OpenCLDeviceBase *device) : device(device), need_update(false)
+{
+}
+
+void MemoryManager::free()
+{
+	foreach(DeviceBuffer& device_buffer, device_buffers) {
+		device_buffer.free(device);
+	}
+}
+
+void MemoryManager::alloc(const char *name, device_memory& mem)
+{
+	Allocation& allocation = allocations[name];
+
+	allocation.mem = &mem;
+	allocation.needs_copy_to_device = true;
+
+	if(!allocation.device_buffer) {
+		DeviceBuffer* device_buffer = smallest_device_buffer();
+		allocation.device_buffer = device_buffer;
+
+		allocation.desc.device_buffer = device_buffer - device_buffers;
+
+		device_buffer->add_allocation(allocation);
+
+		device_buffer->size += mem.memory_size();
+	}
+
+	need_update = true;
+}
+
+bool MemoryManager::free(device_memory& mem)
+{
+	foreach(AllocationsMap::value_type& value, allocations) {
+		Allocation& allocation = value.second;
+		if(allocation.mem == &mem) {
+
+			allocation.device_buffer->size -= mem.memory_size();
+
+			allocation.mem = NULL;
+			allocation.needs_copy_to_device = false;
+
+			need_update = true;
+			return true;
+		}
+	}
+
+	return false;
+}
+
+MemoryManager::BufferDescriptor MemoryManager::get_descriptor(string name)
+{
+	update_device_memory();
+
+	Allocation& allocation = allocations[name];
+	return allocation.desc;
+}
+
+void MemoryManager::update_device_memory()
+{
+	if(!need_update) {
+		return;
+	}
+
+	need_update = false;
+
+	foreach(DeviceBuffer& device_buffer, device_buffers) {
+		device_buffer.update_device_memory(device);
+	}
+}
+
+void MemoryManager::set_kernel_arg_buffers(cl_kernel kernel, cl_uint *narg)
+{
+	update_device_memory();
+
+	foreach(DeviceBuffer& device_buffer, device_buffers) {
+		if(device_buffer.buffer->device_pointer) {
+			device->kernel_set_args(kernel, (*narg)++, *device_buffer.buffer);
+		}
+		else {
+			device->kernel_set_args(kernel, (*narg)++, device->null_mem);
+		}
+	}
+}
+
+CCL_NAMESPACE_END
+
+#endif  /* WITH_OPENCL */
+
diff --git a/intern/cycles/device/opencl/memory_manager.h b/intern/cycles/device/opencl/memory_manager.h
new file mode 100644
index 00000000000..3714405d026
--- /dev/null
+++ b/intern/cycles/device/opencl/memory_manager.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2011-2017 Blender Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "device/device.h"
+
+#include "util/util_map.h"
+#include "util/util_vector.h"
+#include "util/util_string.h"
+
+#include "clew.h"
+
+CCL_NAMESPACE_BEGIN
+
+class OpenCLDeviceBase;
+
+class MemoryManager {
+public:
+	static const int NUM_DEVICE_BUFFERS = 8;
+
+	struct BufferDescriptor {
+		uint device_buffer;
+		cl_ulong offset;
+	};
+
+private:
+	struct DeviceBuffer;
+
+	struct Allocation {
+		device_memory *mem;
+
+		DeviceBuffer *device_buffer;
+		size_t size; /* Size of actual allocation, may be larger than requested. */
+
+		BufferDescriptor desc;
+
+		bool needs_copy_to_device;
+
+		Allocation() : mem(NULL), device_buffer(NULL), size(0), needs_copy_to_device(false)
+		{
+		}
+	};
+
+	struct DeviceBuffer {
+		device_memory *buffer;
+		vector<Allocation*> allocations;
+		size_t size; /* Size of all allocations. */
+
+		DeviceBuffer() : buffer(new device_memory), size(0)
+		{
+		}
+
+		~DeviceBuffer() {
+			delete buffer;
+			buffer = NULL;
+		}
+
+		void add_allocation(Allocation& allocation);
+
+		void update_device_memory(OpenCLDeviceBase *device);
+
+		void free(OpenCLDeviceBase *device);
+	};
+
+	OpenCLDeviceBase *device;
+
+	DeviceBuffer device_buffers[NUM_DEVICE_BUFFERS];
+
+	typedef unordered_map<string, Allocation> AllocationsMap;
+	AllocationsMap allocations;
+
+	bool need_update;
+
+	DeviceBuffer* smallest_device_buffer();
+
+public:
+	MemoryManager(OpenCLDeviceBase *device);
+
+	void free(); /* Free all memory. */
+
+	void alloc(const char *name, device_memory& mem);
+	bool free(device_memory& mem);
+
+	BufferDescriptor get_descriptor(string name);
+
+	void update_device_memory();
+	void set_kernel_arg_buffers(cl_kernel kernel, cl_uint *narg);
+};
+
+CCL_NAMESPACE_END
+
diff --git a/intern/cycles/device/opencl/opencl.h b/intern/cycles/device/opencl/opencl.h
index 78ca377d933..26bf4a9af5b 100644
--- a/intern/cycles/device/opencl/opencl.h
+++ b/intern/cycles/device/opencl/opencl.h
@@ -25,6 +25,8 @@
 
 #include "clew.h"
 
+#include "device/opencl/memory_manager.h"
+
 CCL_NAMESPACE_BEGIN
 
 /* Disable workarounds, seems to be working fine on latest drivers. */
@@ -224,6 +226,18 @@ public:
 	static string get_kernel_md5();
 };
 
+#define opencl_device_assert(device, stmt) \
+	{ \
+		cl_int err = stmt; \
+		\
+		if(err != CL_SUCCESS) { \
+			string message = string_printf("OpenCL error: %s in %s (%s:%d)", clewErrorString(err), #stmt, __FILE__, __LINE__); \
+			if((device)->error_message() == "") \
+				(device)->set_error(message); \
+			fprintf(stderr, "%s\n", message.c_str()); \
+		} \
+	} (void)0
+
 #define opencl_assert(stmt) \
 	{ \
 		cl_int err = stmt; \
@@ -344,6 +358,7 @@ public:
 	size_t global_size_round_up(int group_size, int global_size);
 	void enqueue_kernel(cl_kernel kernel, size_t w, size_t h, size_t max_workgroup_size = -1);
 	void set_kernel_arg_mem(cl_kernel kernel, cl_uint *narg, const char *name);
+	void set_kernel_arg_buffers(cl_kernel kernel, cl_uint *narg);
 
 	void film_convert(DeviceTask& task, device_ptr buffer, device_ptr rgba_byte, device_ptr rgba_half);
 	void shader(DeviceTask& task);
@@ -525,6 +540,42 @@ protected:
 
 	virtual string build_options_for_base_program(
 	        const DeviceRequestedFeatures& /*requested_features*/);
+
+private:
+	MemoryManager memory_manager;
+	friend class MemoryManager;
+
+	struct tex_info_t {
+		uint buffer, padding;
+		cl_ulong offset;
+		uint width, height, depth, options;
+	};
+	static_assert_align(tex_info_t, 16);
+
+	vector<tex_info_t> texture_descriptors;
+	device_memory texture_descriptors_buffer;
+
+	struct Texture {
+		Texture() {}
+		Texture(device_memory* mem,
+		         InterpolationType interpolation,
+		         ExtensionType extension)
+		    : mem(mem),
+			  interpolation(interpolation),
+			  extension(extension) {
+		}
+		device_memory* mem;
+		InterpolationType interpolation;
+		ExtensionType extension;
+	};
+
+	typedef map<string, Texture> TexturesMap;
+	TexturesMap textures;
+
+	bool textures_need_update;
+
+protected:
+	void flush_texture_buffers();
 };
 
 Device *opencl_create_mega_device(DeviceInfo& info, Stats& stats, bool background);
diff --git a/intern/cycles/device/opencl/opencl_base.cpp b/intern/cycles/device/opencl/opencl_base.cpp
index 509da7a0a84..7bdf81462b8 100644
--- a/intern/cycles/device/opencl/opencl_base.cpp
+++ b/intern/cycles/device/opencl/opencl_base.cpp
@@ -29,6 +29,15 @@
 
 CCL_NAMESPACE_BEGIN
 
+struct texture_slot_t {
+	texture_slot_t(const string& name, int slot)
+		: name(name),
+		  slot(slot) {
+	}
+	string name;
+	int slot;
+};
+
 bool OpenCLDeviceBase::opencl_error(cl_int err)
 {
 	if(err != CL_SUCCESS) {
@@ -63,7 +72,7 @@ void OpenCLDeviceBase::opencl_assert_err(cl_int err, const char* where)
 }
 
 OpenCLDeviceBase::OpenCLDeviceBase(DeviceInfo& info, Stats &stats, bool background_)
-: Device(info, stats, background_)
+: Device(info, stats, background_), memory_manager(this)
 {
 	cpPlatform = NULL;
 	cdDevice = NULL;
@@ -71,6 +80,7 @@ OpenCLDeviceBase::OpenCLDeviceBase(DeviceInfo& info, Stats &stats, bool backgrou
 	cqCommandQueue = NULL;
 	null_mem = 0;
 	device_initialized = false;
+	textures_need_update = true;
 
 	vector<OpenCLPlatformDevice> usable_devices;
 	OpenCLInfo::get_usable_devices(&usable_devices);
@@ -126,6 +136,12 @@ OpenCLDeviceBase::OpenCLDeviceBase(DeviceInfo& info, Stats &stats, bool backgrou
 		return;
 	}
 
+	/* Allocate this right away so that texture_descriptors_buffer is placed at offset 0 in the device memory buffers */
+	texture_descriptors.resize(1);
+	texture_descriptors_buffer.resize(1);
+	texture_descriptors_buffer.data_pointer = (device_ptr)&texture_descriptors[0];
+	memory_manager.alloc("texture_descriptors", texture_descriptors_buffer);
+
 	fprintf(stderr, "Device init success\n");
 	device_initialized = true;
 }
@@ -134,6 +150,8 @@ OpenCLDeviceBase::~OpenCLDeviceBase()
 {
 	task_pool.stop();
 
+	memory_manager.free();
+
 	if(null_mem)
 		clReleaseMemObject(CL_MEM_PTR(null_mem));
 
@@ -493,29 +511,35 @@ void OpenCLDeviceBase::const_copy_to(const char *name, void *host, size_t size)
 
 void OpenCLDeviceBase::tex_alloc(const char *name,
                device_memory& mem,
-               InterpolationType /*interpolation*/,
-               ExtensionType /*extension*/)
+               InterpolationType interpolation,
+               ExtensionType extension)
 {
 	VLOG(1) << "Texture allocate: " << name << ", "
 	        << string_human_readable_number(mem.memory_size()) << " bytes. ("
 	        << string_human_readable_size(mem.memory_size()) << ")";
-	mem_alloc(NULL, mem, MEM_READ_ONLY);
-	mem_copy_to(mem);
-	assert(mem_map.find(name) == mem_map.end());
-	mem_map.insert(MemMap::value_type(name, mem.device_pointer));
+
+	memory_manager.alloc(name, mem);
+	/* Set the pointer to non-null to keep code that inspects its value from thinking its unallocated. */
+	mem.device_pointer = 1;
+	textures[name] = Texture(&mem, interpolation, extension);
+	textures_need_update = true;
 }
 
 void OpenCLDeviceBase::tex_free(device_memory& mem)
 {
 	if(mem.device_pointer) {
-		foreach(const MemMap::value_type& value, mem_map) {
-			if(value.second == mem.device_pointer) {
-				mem_map.erase(value.first);
+		mem.device_pointer = 0;
+
+		if(memory_manager.free(mem)) {
+			textures_need_update = true;
+		}
+
+		foreach(TexturesMap::value_type& value, textures) {
+			if(value.second.mem == &mem) {
+				textures.erase(value.first);
 				break;
 			}
 		}
-
-		mem_free(mem);
 	}
 }
 
@@ -581,6 +605,98 @@ void OpenCLDeviceBase::set_kernel_arg_mem(cl_kernel kernel, cl_uint *narg, const
 	opencl_assert(clSetKernelArg(kernel, (*narg)++, sizeof(ptr), (void*)&ptr));
 }
 
+void OpenCLDeviceBase::set_kernel_arg_buffers(cl_kernel kernel, cl_uint *narg)
+{
+	flush_texture_buffers();
+
+	memory_manager.set_kernel_arg_buffers(kernel, narg);
+}
+
+void OpenCLDeviceBase::flush_texture_buffers()
+{
+	if(!textures_need_update) {
+		return;
+	}
+	textures_need_update = false;
+
+	/* Setup slots for textures. */
+	int num_slots = 0;
+
+	vector<texture_slot_t> texture_slots;
+
+#define KERNEL_TEX(type, ttype, name) \
+	if(textures.find(#name) != textures.end()) { \
+		texture_slots.push_back(texture_slot_t(#name, num_slots)); \
+	} \
+	num_slots++;
+#include "kernel/kernel_textures.h"
+
+	int num_data_slots = num_slots;
+
+	foreach(TexturesMap::value_type& tex, textures) {
+		string name = tex.first;
+
+		if(string_startswith(name, "__tex_image")) {
+			int pos = name.rfind("_");
+			int id = atoi(name.data() + pos + 1);
+			texture_slots.push_back(texture_slot_t(name,
+				                                   num_data_slots + id));
+			num_slots = max(num_slots, num_data_slots + id + 1);
+		}
+	}
+
+	/* Realloc texture descriptors buffer. */
+	memory_manager.free(texture_descriptors_buffer);
+
+	texture_descriptors.resize(num_slots);
+	texture_descriptors_buffer.resize(num_slots * sizeof(tex_info_t));
+	texture_descriptors_buffer.data_pointer = (device_ptr)&texture_descriptors[0];
+
+	memory_manager.alloc("texture_descriptors", texture_descriptors_buffer);
+
+	/* Fill in descriptors */
+	foreach(texture_slot_t& slot, texture_slots) {
+		Texture& tex = textures[slot.name];
+
+		tex_info_t& info = texture_descriptors[slot.slot];
+
+		MemoryManager::BufferDescriptor desc = memory_manager.get_descriptor(slot.name);
+
+		info.offset = desc.offset;
+		info.buffer = desc.device_buffer;
+
+		if(string_startswith(slot.name, "__tex_image")) {
+			info.width = tex.mem->data_width;
+			info.height = tex.mem->data_height;
+			info.depth = tex.mem->data_depth;
+
+			info.options = 0;
+
+			if(tex.interpolation == INTERPOLATION_CLOSEST) {
+				info.options |= (1 << 0);
+			}
+
+			switch(tex.extension) {
+				case EXTENSION_REPEAT:
+					info.options |= (1 << 1);
+					break;
+				case EXTENSION_EXTEND:
+					info.options |= (1 << 2);
+					break;
+				case EXTENSION_CLIP:
+					info.options |= (1 << 3);
+					break;
+				default:
+					break;
+			}
+		}
+	}
+
+	/* Force write of descriptors. */
+	memory_manager.free(texture_descriptors_buffer);
+	memory_manager.alloc("texture_descriptors", texture_descriptors_buffer);
+}
+
 void OpenCLDeviceBase::film_convert(DeviceTask& task, device_ptr buffer, device_ptr rgba_byte, device_ptr rgba_half)
 {
 	/* cast arguments to cl types */
@@ -605,10 +721,7 @@ void OpenCLDeviceBase::film_convert(DeviceTask& task, device_ptr buffer, device_
 		                d_rgba,
 		                d_buffer);
 
-#define KERNEL_TEX(type, ttype, name) \
-set_kernel_arg_mem(ckFilmConvertKernel, &start_arg_index, #name);
-#include "kernel/kernel_textures.h"
-#undef KERNEL_TEX
+	set_kernel_arg_buffers(ckFilmConvertKernel, &start_arg_index);
 
 	start_arg_index += kernel_set_args(ckFilmConvertKernel,
 	                                   start_arg_index,
@@ -1030,10 +1143,7 @@ void OpenCLDeviceBase::shader(DeviceTask& task)
 		                                   d_output_luma);
 	}
 
-#define KERNEL_TEX(type, ttype, name) \
-	set_kernel_arg_mem(kernel, &start_arg_index, #name);
-#include "kernel/kernel_textures.h"
-#undef KERNEL_TEX
+	set_kernel_arg_buffers(kernel, &start_arg_index);
 
 	start_arg_index += kernel_set_args(kernel,
 	                                   start_arg_index,
diff --git a/intern/cycles/device/opencl/opencl_mega.cpp b/intern/cycles/device/opencl/opencl_mega.cpp
index 06c15bcf401..ec47fdafa3d 100644
--- a/intern/cycles/device/opencl/opencl_mega.cpp
+++ b/intern/cycles/device/opencl/opencl_mega.cpp
@@ -82,10 +82,7 @@ public:
 			                d_buffer,
 			                d_rng_state);
 
-#define KERNEL_TEX(type, ttype, name) \
-		set_kernel_arg_mem(ckPathTraceKernel, &start_arg_index, #name);
-#include "kernel/kernel_textures.h"
-#undef KERNEL_TEX
+		set_kernel_arg_buffers(ckPathTraceKernel, &start_arg_index);
 
 		start_arg_index += kernel_set_args(ckPathTraceKernel,
 		                                   start_arg_index,
diff --git a/intern/cycles/device/opencl/opencl_split.cpp b/intern/cycles/device/opencl/opencl_split.cpp
index 76d9983e9a2..16a96213100 100644
--- a/intern/cycles/device/opencl/opencl_split.cpp
+++ b/intern/cycles/device/opencl/opencl_split.cpp
@@ -99,6 +99,8 @@ public:
 
 	void thread_run(DeviceTask *task)
 	{
+		flush_texture_buffers();
+
 		if(task->type == DeviceTask::FILM_CONVERT) {
 			film_convert(*task, task->buffer, task->rgba_byte, task->rgba_half);
 		}
@@ -113,10 +115,19 @@ public:
 			 */
 			typedef struct KernelGlobals {
 				ccl_constant KernelData *data;
+				ccl_global char *buffers[8];
+
+				typedef struct _tex_info_t {
+					uint buffer, padding;
+					uint64_t offset;
+					uint width, height, depth, options;
+				} _tex_info_t;
+
 #define KERNEL_TEX(type, ttype, name) \
-				ccl_global type *name;
+				_tex_info_t name;
 #include "kernel/kernel_textures.h"
 #undef KERNEL_TEX
+
 				SplitData split_data;
 				SplitParams split_param_data;
 			} KernelGlobals;
@@ -217,11 +228,7 @@ public:
 					            *cached_memory.ray_state,
 					            *cached_memory.rng_state);
 
-/* TODO(sergey): Avoid map lookup here. */
-#define KERNEL_TEX(type, ttype, name) \
-				device->set_kernel_arg_mem(program(), &start_arg_index, #name);
-#include "kernel/kernel_textures.h"
-#undef KERNEL_TEX
+				device->set_kernel_arg_buffers(program(), &start_arg_index);
 
 			start_arg_index +=
 				device->kernel_set_args(program(),
@@ -352,11 +359,7 @@ public:
 			                ray_state,
 			                rtile.rng_state);
 
-/* TODO(sergey): Avoid map lookup here. */
-#define KERNEL_TEX(type, ttype, name) \
-	device->set_kernel_arg_mem(device->program_data_init(), &start_arg_index, #name);
-#include "kernel/kernel_textures.h"
-#undef KERNEL_TEX
+			device->set_kernel_arg_buffers(device->program_data_init(), &start_arg_index);
 
 		start_arg_index +=
 			device->kernel_set_args(device->program_data_init(),
diff --git a/intern/cycles/device/opencl/opencl_util.cpp b/intern/cycles/device/opencl/opencl_util.cpp
index 0d34af3e040..7d5173a5f1d 100644
--- a/intern/cycles/device/opencl/opencl_util.cpp
+++ b/intern/cycles/device/opencl/opencl_util.cpp
@@ -635,7 +635,7 @@ bool OpenCLInfo::device_supported(const string& platform_name,
 			"Tahiti", "Pitcairn", "Capeverde", "Oland",
 			NULL
 		};
-		for (int i = 0; blacklist[i] != NULL; i++) {
+		for(int i = 0; blacklist[i] != NULL; i++) {
 			if(device_name == blacklist[i]) {
 				VLOG(1) << "AMD device " << device_name << " not supported";
 				return false;
diff --git a/intern/cycles/kernel/CMakeLists.txt b/intern/cycles/kernel/CMakeLists.txt
index 23e9bd311c4..b4ca16bdb48 100644
--- a/intern/cycles/kernel/CMakeLists.txt
+++ b/intern/cycles/kernel/CMakeLists.txt
@@ -79,7 +79,6 @@ set(SRC_HEADERS
 	kernel_compat_cpu.h
 	kernel_compat_cuda.h
 	kernel_compat_opencl.h
-	kernel_debug.h
 	kernel_differential.h
 	kernel_emission.h
 	kernel_film.h
@@ -202,6 +201,7 @@ set(SRC_GEOM_HEADERS
 	geom/geom.h
 	geom/geom_attribute.h
 	geom/geom_curve.h
+	geom/geom_curve_intersect.h
 	geom/geom_motion_curve.h
 	geom/geom_motion_triangle.h
 	geom/geom_motion_triangle_intersect.h
@@ -233,6 +233,7 @@ set(SRC_FILTER_HEADERS
 set(SRC_UTIL_HEADERS
 	../util/util_atomic.h
 	../util/util_color.h
+	../util/util_defines.h
 	../util/util_half.h
 	../util/util_hash.h
 	../util/util_math.h
diff --git a/intern/cycles/kernel/bvh/bvh.h b/intern/cycles/kernel/bvh/bvh.h
index 85741016b25..cf0c8542d69 100644
--- a/intern/cycles/kernel/bvh/bvh.h
+++ b/intern/cycles/kernel/bvh/bvh.h
@@ -233,7 +233,7 @@ ccl_device_intersect void scene_intersect_subsurface(KernelGlobals *kg,
 ccl_device_intersect bool scene_intersect_shadow_all(KernelGlobals *kg,
                                                      const Ray *ray,
                                                      Intersection *isect,
-                                                     int skip_object,
+                                                     uint visibility,
                                                      uint max_hits,
                                                      uint *num_hits)
 {
@@ -244,7 +244,7 @@ ccl_device_intersect bool scene_intersect_shadow_all(KernelGlobals *kg,
 			return bvh_intersect_shadow_all_hair_motion(kg,
 			                                            ray,
 			                                            isect,
-			                                            skip_object,
+			                                            visibility,
 			                                            max_hits,
 			                                            num_hits);
 		}
@@ -253,7 +253,7 @@ ccl_device_intersect bool scene_intersect_shadow_all(KernelGlobals *kg,
 		return bvh_intersect_shadow_all_motion(kg,
 		                                       ray,
 		                                       isect,
-		                                       skip_object,
+		                                       visibility,
 		                                       max_hits,
 		                                       num_hits);
 	}
@@ -264,7 +264,7 @@ ccl_device_intersect bool scene_intersect_shadow_all(KernelGlobals *kg,
 		return bvh_intersect_shadow_all_hair(kg,
 		                                     ray,
 		                                     isect,
-		                                     skip_object,
+		                                     visibility,
 		                                     max_hits,
 		                                     num_hits);
 	}
@@ -275,7 +275,7 @@ ccl_device_intersect bool scene_intersect_shadow_all(KernelGlobals *kg,
 		return bvh_intersect_shadow_all_instancing(kg,
 		                                           ray,
 		                                           isect,
-		                                           skip_object,
+		                                           visibility,
 		                                           max_hits,
 		                                           num_hits);
 	}
@@ -284,7 +284,7 @@ ccl_device_intersect bool scene_intersect_shadow_all(KernelGlobals *kg,
 	return bvh_intersect_shadow_all(kg,
 	                                ray,
 	                                isect,
-	                                skip_object,
+	                                visibility,
 	                                max_hits,
 	                                num_hits);
 }
diff --git a/intern/cycles/kernel/bvh/bvh_nodes.h b/intern/cycles/kernel/bvh/bvh_nodes.h
index 74a9ebf14e4..6c33dad5426 100644
--- a/intern/cycles/kernel/bvh/bvh_nodes.h
+++ b/intern/cycles/kernel/bvh/bvh_nodes.h
@@ -52,8 +52,8 @@ ccl_device_forceinline int bvh_aligned_node_intersect(KernelGlobals *kg,
 	float c0hiy = (node1.z - P.y) * idir.y;
 	float c0loz = (node2.x - P.z) * idir.z;
 	float c0hiz = (node2.z - P.z) * idir.z;
-	float c0min = max4(min(c0lox, c0hix), min(c0loy, c0hiy), min(c0loz, c0hiz), 0.0f);
-	float c0max = min4(max(c0lox, c0hix), max(c0loy, c0hiy), max(c0loz, c0hiz), t);
+	float c0min = max4(0.0f, min(c0lox, c0hix), min(c0loy, c0hiy), min(c0loz, c0hiz));
+	float c0max = min4(t, max(c0lox, c0hix), max(c0loy, c0hiy), max(c0loz, c0hiz));
 
 	float c1lox = (node0.y - P.x) * idir.x;
 	float c1hix = (node0.w - P.x) * idir.x;
@@ -61,8 +61,8 @@ ccl_device_forceinline int bvh_aligned_node_intersect(KernelGlobals *kg,
 	float c1hiy = (node1.w - P.y) * idir.y;
 	float c1loz = (node2.y - P.z) * idir.z;
 	float c1hiz = (node2.w - P.z) * idir.z;
-	float c1min = max4(min(c1lox, c1hix), min(c1loy, c1hiy), min(c1loz, c1hiz), 0.0f);
-	float c1max = min4(max(c1lox, c1hix), max(c1loy, c1hiy), max(c1loz, c1hiz), t);
+	float c1min = max4(0.0f, min(c1lox, c1hix), min(c1loy, c1hiy), min(c1loz, c1hiz));
+	float c1max = min4(t, max(c1lox, c1hix), max(c1loy, c1hiy), max(c1loz, c1hiz));
 
 	dist[0] = c0min;
 	dist[1] = c1min;
@@ -101,8 +101,8 @@ ccl_device_forceinline int bvh_aligned_node_intersect_robust(KernelGlobals *kg,
 	float c0hiy = (node1.z - P.y) * idir.y;
 	float c0loz = (node2.x - P.z) * idir.z;
 	float c0hiz = (node2.z - P.z) * idir.z;
-	float c0min = max4(min(c0lox, c0hix), min(c0loy, c0hiy), min(c0loz, c0hiz), 0.0f);
-	float c0max = min4(max(c0lox, c0hix), max(c0loy, c0hiy), max(c0loz, c0hiz), t);
+	float c0min = max4(0.0f, min(c0lox, c0hix), min(c0loy, c0hiy), min(c0loz, c0hiz));
+	float c0max = min4(t, max(c0lox, c0hix), max(c0loy, c0hiy), max(c0loz, c0hiz));
 
 	float c1lox = (node0.y - P.x) * idir.x;
 	float c1hix = (node0.w - P.x) * idir.x;
@@ -110,8 +110,8 @@ ccl_device_forceinline int bvh_aligned_node_intersect_robust(KernelGlobals *kg,
 	float c1hiy = (node1.w - P.y) * idir.y;
 	float c1loz = (node2.y - P.z) * idir.z;
 	float c1hiz = (node2.w - P.z) * idir.z;
-	float c1min = max4(min(c1lox, c1hix), min(c1loy, c1hiy), min(c1loz, c1hiz), 0.0f);
-	float c1max = min4(max(c1lox, c1hix), max(c1loy, c1hiy), max(c1loz, c1hiz), t);
+	float c1min = max4(0.0f, min(c1lox, c1hix), min(c1loy, c1hiy), min(c1loz, c1hiz));
+	float c1max = min4(t, max(c1lox, c1hix), max(c1loy, c1hiy), max(c1loz, c1hiz));
 
 	if(difl != 0.0f) {
 		float hdiff = 1.0f + difl;
@@ -483,8 +483,8 @@ ccl_device_forceinline int bvh_unaligned_node_intersect(KernelGlobals *kg,
 	ssef tfar_y = max(lower_y, upper_y);
 	ssef tfar_z = max(lower_z, upper_z);
 
-	const ssef tnear = max4(tnear_x, tnear_y, tnear_z, isect_near);
-	const ssef tfar = min4(tfar_x, tfar_y, tfar_z, isect_far);
+	const ssef tnear = max4(isect_near, tnear_x, tnear_y, tnear_z);
+	const ssef tfar = min4(isect_far, tfar_x, tfar_y, tfar_z);
 	sseb vmask = tnear <= tfar;
 	dist[0] = tnear.f[0];
 	dist[1] = tnear.f[1];
@@ -545,8 +545,8 @@ ccl_device_forceinline int bvh_unaligned_node_intersect_robust(KernelGlobals *kg
 	ssef tfar_y = max(lower_y, upper_y);
 	ssef tfar_z = max(lower_z, upper_z);
 
-	const ssef tnear = max4(tnear_x, tnear_y, tnear_z, isect_near);
-	const ssef tfar = min4(tfar_x, tfar_y, tfar_z, isect_far);
+	const ssef tnear = max4(isect_near, tnear_x, tnear_y, tnear_z);
+	const ssef tfar = min4(isect_far, tfar_x, tfar_y, tfar_z);
 	sseb vmask;
 	if(difl != 0.0f) {
 		const float round_down = 1.0f - difl;
@@ -615,7 +615,7 @@ ccl_device_forceinline int bvh_node_intersect_robust(KernelGlobals *kg,
                                                      const float3& P,
                                                      const float3& dir,
                                                      const ssef& isect_near,
-                                                      const ssef& isect_far,
+                                                     const ssef& isect_far,
                                                      const ssef& tsplat,
                                                      const ssef Psplat[3],
                                                      const ssef idirsplat[3],
diff --git a/intern/cycles/kernel/bvh/bvh_shadow_all.h b/intern/cycles/kernel/bvh/bvh_shadow_all.h
index 267e098f912..a6a4353562c 100644
--- a/intern/cycles/kernel/bvh/bvh_shadow_all.h
+++ b/intern/cycles/kernel/bvh/bvh_shadow_all.h
@@ -45,7 +45,7 @@ ccl_device_inline
 bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals *kg,
                                  const Ray *ray,
                                  Intersection *isect_array,
-                                 const int skip_object,
+                                 const uint visibility,
                                  const uint max_hits,
                                  uint *num_hits)
 {
@@ -119,7 +119,7 @@ bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals *kg,
 				                               idir,
 				                               isect_t,
 				                               node_addr,
-				                               PATH_RAY_SHADOW,
+				                               visibility,
 				                               dist);
 #else // __KERNEL_SSE2__
 				traverse_mask = NODE_INTERSECT(kg,
@@ -134,7 +134,7 @@ bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals *kg,
 				                               idirsplat,
 				                               shufflexyz,
 				                               node_addr,
-				                               PATH_RAY_SHADOW,
+				                               visibility,
 				                               dist);
 #endif // __KERNEL_SSE2__
 
@@ -186,17 +186,6 @@ bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals *kg,
 					/* primitive intersection */
 					while(prim_addr < prim_addr2) {
 						kernel_assert((kernel_tex_fetch(__prim_type, prim_addr) & PRIMITIVE_ALL) == p_type);
-
-#ifdef __SHADOW_TRICKS__
-						uint tri_object = (object == OBJECT_NONE)
-						        ? kernel_tex_fetch(__prim_object, prim_addr)
-						        : object;
-						if(tri_object == skip_object) {
-							++prim_addr;
-							continue;
-						}
-#endif
-
 						bool hit;
 
 						/* todo: specialized intersect functions which don't fill in
@@ -209,7 +198,7 @@ bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals *kg,
 								                         isect_array,
 								                         P,
 								                         dir,
-								                         PATH_RAY_SHADOW,
+								                         visibility,
 								                         object,
 								                         prim_addr);
 								break;
@@ -221,7 +210,7 @@ bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals *kg,
 								                                P,
 								                                dir,
 								                                ray->time,
-								                                PATH_RAY_SHADOW,
+								                                visibility,
 								                                object,
 								                                prim_addr);
 								break;
@@ -232,30 +221,30 @@ bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals *kg,
 							case PRIMITIVE_MOTION_CURVE: {
 								const uint curve_type = kernel_tex_fetch(__prim_type, prim_addr);
 								if(kernel_data.curve.curveflags & CURVE_KN_INTERPOLATE) {
-									hit = bvh_cardinal_curve_intersect(kg,
-									                                   isect_array,
-									                                   P,
-									                                   dir,
-									                                   PATH_RAY_SHADOW,
-									                                   object,
-									                                   prim_addr,
-									                                   ray->time,
-									                                   curve_type,
-									                                   NULL,
-									                                   0, 0);
+									hit = cardinal_curve_intersect(kg,
+									                               isect_array,
+									                               P,
+									                               dir,
+									                               visibility,
+									                               object,
+									                               prim_addr,
+									                               ray->time,
+									                               curve_type,
+									                               NULL,
+									                               0, 0);
 								}
 								else {
-									hit = bvh_curve_intersect(kg,
-									                          isect_array,
-									                          P,
-									                          dir,
-									                          PATH_RAY_SHADOW,
-									                          object,
-									                          prim_addr,
-									                          ray->time,
-									                          curve_type,
-									                          NULL,
-									                          0, 0);
+									hit = curve_intersect(kg,
+									                      isect_array,
+									                      P,
+									                      dir,
+									                      visibility,
+									                      object,
+									                      prim_addr,
+									                      ray->time,
+									                      curve_type,
+									                      NULL,
+									                      0, 0);
 								}
 								break;
 							}
@@ -402,7 +391,7 @@ bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals *kg,
 ccl_device_inline bool BVH_FUNCTION_NAME(KernelGlobals *kg,
                                          const Ray *ray,
                                          Intersection *isect_array,
-                                         const int skip_object,
+                                         const uint visibility,
                                          const uint max_hits,
                                          uint *num_hits)
 {
@@ -411,7 +400,7 @@ ccl_device_inline bool BVH_FUNCTION_NAME(KernelGlobals *kg,
 		return BVH_FUNCTION_FULL_NAME(QBVH)(kg,
 		                                    ray,
 		                                    isect_array,
-		                                    skip_object,
+		                                    visibility,
 		                                    max_hits,
 		                                    num_hits);
 	}
@@ -422,7 +411,7 @@ ccl_device_inline bool BVH_FUNCTION_NAME(KernelGlobals *kg,
 		return BVH_FUNCTION_FULL_NAME(BVH)(kg,
 		                                   ray,
 		                                   isect_array,
-		                                   skip_object,
+		                                   visibility,
 		                                   max_hits,
 		                                   num_hits);
 	}
diff --git a/intern/cycles/kernel/bvh/bvh_traversal.h b/intern/cycles/kernel/bvh/bvh_traversal.h
index c58d3b0316c..ae8f54821f2 100644
--- a/intern/cycles/kernel/bvh/bvh_traversal.h
+++ b/intern/cycles/kernel/bvh/bvh_traversal.h
@@ -244,14 +244,14 @@ ccl_device_noinline bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals *kg,
 								{
 									/* shadow ray early termination */
 #if defined(__KERNEL_SSE2__)
-									if(visibility == PATH_RAY_SHADOW_OPAQUE)
+									if(visibility & PATH_RAY_SHADOW_OPAQUE)
 										return true;
 									tsplat = ssef(0.0f, 0.0f, -isect->t, -isect->t);
 #  if BVH_FEATURE(BVH_HAIR)
 									tfar = ssef(isect->t);
 #  endif
 #else
-									if(visibility == PATH_RAY_SHADOW_OPAQUE)
+									if(visibility & PATH_RAY_SHADOW_OPAQUE)
 										return true;
 #endif
 								}
@@ -274,14 +274,14 @@ ccl_device_noinline bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals *kg,
 								{
 									/* shadow ray early termination */
 #  if defined(__KERNEL_SSE2__)
-									if(visibility == PATH_RAY_SHADOW_OPAQUE)
+									if(visibility & PATH_RAY_SHADOW_OPAQUE)
 										return true;
 									tsplat = ssef(0.0f, 0.0f, -isect->t, -isect->t);
 #    if BVH_FEATURE(BVH_HAIR)
 									tfar = ssef(isect->t);
 #    endif
 #  else
-									if(visibility == PATH_RAY_SHADOW_OPAQUE)
+									if(visibility & PATH_RAY_SHADOW_OPAQUE)
 										return true;
 #  endif
 								}
@@ -298,44 +298,44 @@ ccl_device_noinline bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals *kg,
 								kernel_assert((curve_type & PRIMITIVE_ALL) == (type & PRIMITIVE_ALL));
 								bool hit;
 								if(kernel_data.curve.curveflags & CURVE_KN_INTERPOLATE) {
-									hit = bvh_cardinal_curve_intersect(kg,
-									                                   isect,
-									                                   P,
-									                                   dir,
-									                                   visibility,
-									                                   object,
-									                                   prim_addr,
-									                                   ray->time,
-									                                   curve_type,
-									                                   lcg_state,
-									                                   difl,
-									                                   extmax);
+									hit = cardinal_curve_intersect(kg,
+									                               isect,
+									                               P,
+									                               dir,
+									                               visibility,
+									                               object,
+									                               prim_addr,
+									                               ray->time,
+									                               curve_type,
+									                               lcg_state,
+									                               difl,
+									                               extmax);
 								}
 								else {
-									hit = bvh_curve_intersect(kg,
-									                          isect,
-									                          P,
-									                          dir,
-									                          visibility,
-									                          object,
-									                          prim_addr,
-									                          ray->time,
-									                          curve_type,
-									                          lcg_state,
-									                          difl,
-									                          extmax);
+									hit = curve_intersect(kg,
+									                      isect,
+									                      P,
+									                      dir,
+									                      visibility,
+									                      object,
+									                      prim_addr,
+									                      ray->time,
+									                      curve_type,
+									                      lcg_state,
+									                      difl,
+									                      extmax);
 								}
 								if(hit) {
 									/* shadow ray early termination */
 #  if defined(__KERNEL_SSE2__)
-									if(visibility == PATH_RAY_SHADOW_OPAQUE)
+									if(visibility & PATH_RAY_SHADOW_OPAQUE)
 										return true;
 									tsplat = ssef(0.0f, 0.0f, -isect->t, -isect->t);
 #    if BVH_FEATURE(BVH_HAIR)
 									tfar = ssef(isect->t);
 #    endif
 #  else
-									if(visibility == PATH_RAY_SHADOW_OPAQUE)
+									if(visibility & PATH_RAY_SHADOW_OPAQUE)
 										return true;
 #  endif
 								}
diff --git a/intern/cycles/kernel/bvh/qbvh_nodes.h b/intern/cycles/kernel/bvh/qbvh_nodes.h
index 6d22f0b0d6a..3036efd4198 100644
--- a/intern/cycles/kernel/bvh/qbvh_nodes.h
+++ b/intern/cycles/kernel/bvh/qbvh_nodes.h
@@ -126,8 +126,8 @@ ccl_device_inline int qbvh_aligned_node_intersect(KernelGlobals *ccl_restrict kg
 	const sseb vmask = cast(tnear) > cast(tfar);
 	int mask = (int)movemask(vmask)^0xf;
 #else
-	const ssef tnear = max4(tnear_x, tnear_y, tnear_z, isect_near);
-	const ssef tfar = min4(tfar_x, tfar_y, tfar_z, isect_far);
+	const ssef tnear = max4(isect_near, tnear_x, tnear_y, tnear_z);
+	const ssef tfar = min4(isect_far, tfar_x, tfar_y, tfar_z);
 	const sseb vmask = tnear <= tfar;
 	int mask = (int)movemask(vmask);
 #endif
@@ -174,8 +174,8 @@ ccl_device_inline int qbvh_aligned_node_intersect_robust(
 
 	const float round_down = 1.0f - difl;
 	const float round_up = 1.0f + difl;
-	const ssef tnear = max4(tnear_x, tnear_y, tnear_z, isect_near);
-	const ssef tfar = min4(tfar_x, tfar_y, tfar_z, isect_far);
+	const ssef tnear = max4(isect_near, tnear_x, tnear_y, tnear_z);
+	const ssef tfar = min4(isect_far, tfar_x, tfar_y, tfar_z);
 	const sseb vmask = round_down*tnear <= round_up*tfar;
 	*dist = tnear;
 	return (int)movemask(vmask);
diff --git a/intern/cycles/kernel/bvh/qbvh_shadow_all.h b/intern/cycles/kernel/bvh/qbvh_shadow_all.h
index ce474438f2c..522213f30ca 100644
--- a/intern/cycles/kernel/bvh/qbvh_shadow_all.h
+++ b/intern/cycles/kernel/bvh/qbvh_shadow_all.h
@@ -33,7 +33,7 @@
 ccl_device bool BVH_FUNCTION_FULL_NAME(QBVH)(KernelGlobals *kg,
                                              const Ray *ray,
                                              Intersection *isect_array,
-                                             const int skip_object,
+                                             const uint visibility,
                                              const uint max_hits,
                                              uint *num_hits)
 {
@@ -107,7 +107,7 @@ ccl_device bool BVH_FUNCTION_FULL_NAME(QBVH)(KernelGlobals *kg,
 
 				if(false
 #ifdef __VISIBILITY_FLAG__
-				   || ((__float_as_uint(inodes.x) & PATH_RAY_SHADOW) == 0)
+				   || ((__float_as_uint(inodes.x) & visibility) == 0)
 #endif
 #if BVH_FEATURE(BVH_MOTION)
 				   || UNLIKELY(ray->time < inodes.y)
@@ -244,7 +244,7 @@ ccl_device bool BVH_FUNCTION_FULL_NAME(QBVH)(KernelGlobals *kg,
 			if(node_addr < 0) {
 				float4 leaf = kernel_tex_fetch(__bvh_leaf_nodes, (-node_addr-1));
 #ifdef __VISIBILITY_FLAG__
-				if((__float_as_uint(leaf.z) & PATH_RAY_SHADOW) == 0) {
+				if((__float_as_uint(leaf.z) & visibility) == 0) {
 					/* Pop. */
 					node_addr = traversal_stack[stack_ptr].addr;
 					--stack_ptr;
@@ -268,17 +268,6 @@ ccl_device bool BVH_FUNCTION_FULL_NAME(QBVH)(KernelGlobals *kg,
 					/* Primitive intersection. */
 					while(prim_addr < prim_addr2) {
 						kernel_assert((kernel_tex_fetch(__prim_type, prim_addr) & PRIMITIVE_ALL) == p_type);
-
-#ifdef __SHADOW_TRICKS__
-						uint tri_object = (object == OBJECT_NONE)
-						        ? kernel_tex_fetch(__prim_object, prim_addr)
-						        : object;
-						if(tri_object == skip_object) {
-							++prim_addr;
-							continue;
-						}
-#endif
-
 						bool hit;
 
 						/* todo: specialized intersect functions which don't fill in
@@ -291,7 +280,7 @@ ccl_device bool BVH_FUNCTION_FULL_NAME(QBVH)(KernelGlobals *kg,
 								                         isect_array,
 								                         P,
 								                         dir,
-								                         PATH_RAY_SHADOW,
+								                         visibility,
 								                         object,
 								                         prim_addr);
 								break;
@@ -303,7 +292,7 @@ ccl_device bool BVH_FUNCTION_FULL_NAME(QBVH)(KernelGlobals *kg,
 								                                P,
 								                                dir,
 								                                ray->time,
-								                                PATH_RAY_SHADOW,
+								                                visibility,
 								                                object,
 								                                prim_addr);
 								break;
@@ -314,30 +303,30 @@ ccl_device bool BVH_FUNCTION_FULL_NAME(QBVH)(KernelGlobals *kg,
 							case PRIMITIVE_MOTION_CURVE: {
 								const uint curve_type = kernel_tex_fetch(__prim_type, prim_addr);
 								if(kernel_data.curve.curveflags & CURVE_KN_INTERPOLATE) {
-									hit = bvh_cardinal_curve_intersect(kg,
-									                                   isect_array,
-									                                   P,
-									                                   dir,
-									                                   PATH_RAY_SHADOW,
-									                                   object,
-									                                   prim_addr,
-									                                   ray->time,
-									                                   curve_type,
-									                                   NULL,
-									                                   0, 0);
+									hit = cardinal_curve_intersect(kg,
+									                               isect_array,
+									                               P,
+									                               dir,
+									                               visibility,
+									                               object,
+									                               prim_addr,
+									                               ray->time,
+									                               curve_type,
+									                               NULL,
+									                               0, 0);
 								}
 								else {
-									hit = bvh_curve_intersect(kg,
-									                          isect_array,
-									                          P,
-									                          dir,
-									                          PATH_RAY_SHADOW,
-									                          object,
-									                          prim_addr,
-									                          ray->time,
-									                          curve_type,
-									                          NULL,
-									                          0, 0);
+									hit = curve_intersect(kg,
+									                      isect_array,
+									                      P,
+									                      dir,
+									                      visibility,
+									                      object,
+									                      prim_addr,
+									                      ray->time,
+									                      curve_type,
+									                      NULL,
+									                      0, 0);
 								}
 								break;
 							}
diff --git a/intern/cycles/kernel/bvh/qbvh_traversal.h b/intern/cycles/kernel/bvh/qbvh_traversal.h
index fca75a1d416..335a4afd47a 100644
--- a/intern/cycles/kernel/bvh/qbvh_traversal.h
+++ b/intern/cycles/kernel/bvh/qbvh_traversal.h
@@ -340,7 +340,7 @@ ccl_device bool BVH_FUNCTION_FULL_NAME(QBVH)(KernelGlobals *kg,
 								                      prim_addr)) {
 									tfar = ssef(isect->t);
 									/* Shadow ray early termination. */
-									if(visibility == PATH_RAY_SHADOW_OPAQUE) {
+									if(visibility & PATH_RAY_SHADOW_OPAQUE) {
 										return true;
 									}
 								}
@@ -362,7 +362,7 @@ ccl_device bool BVH_FUNCTION_FULL_NAME(QBVH)(KernelGlobals *kg,
 								                             prim_addr)) {
 									tfar = ssef(isect->t);
 									/* Shadow ray early termination. */
-									if(visibility == PATH_RAY_SHADOW_OPAQUE) {
+									if(visibility & PATH_RAY_SHADOW_OPAQUE) {
 										return true;
 									}
 								}
@@ -379,37 +379,37 @@ ccl_device bool BVH_FUNCTION_FULL_NAME(QBVH)(KernelGlobals *kg,
 								kernel_assert((curve_type & PRIMITIVE_ALL) == (type & PRIMITIVE_ALL));
 								bool hit;
 								if(kernel_data.curve.curveflags & CURVE_KN_INTERPOLATE) {
-									hit = bvh_cardinal_curve_intersect(kg,
-									                                   isect,
-									                                   P,
-									                                   dir,
-									                                   visibility,
-									                                   object,
-									                                   prim_addr,
-									                                   ray->time,
-									                                   curve_type,
-									                                   lcg_state,
-									                                   difl,
-									                                   extmax);
+									hit = cardinal_curve_intersect(kg,
+									                               isect,
+									                               P,
+									                               dir,
+									                               visibility,
+									                               object,
+									                               prim_addr,
+									                               ray->time,
+									                               curve_type,
+									                               lcg_state,
+									                               difl,
+									                               extmax);
 								}
 								else {
-									hit = bvh_curve_intersect(kg,
-									                          isect,
-									                          P,
-									                          dir,
-									                          visibility,
-									                          object,
-									                          prim_addr,
-									                          ray->time,
-									                          curve_type,
-									                          lcg_state,
-									                          difl,
-									                          extmax);
+									hit = curve_intersect(kg,
+									                      isect,
+									                      P,
+									                      dir,
+									                      visibility,
+									                      object,
+									                      prim_addr,
+									                      ray->time,
+									                      curve_type,
+									                      lcg_state,
+									                      difl,
+									                      extmax);
 								}
 								if(hit) {
 									tfar = ssef(isect->t);
 									/* Shadow ray early termination. */
-									if(visibility == PATH_RAY_SHADOW_OPAQUE) {
+									if(visibility & PATH_RAY_SHADOW_OPAQUE) {
 										return true;
 									}
 								}
diff --git a/intern/cycles/kernel/closure/bsdf_microfacet_multi.h b/intern/cycles/kernel/closure/bsdf_microfacet_multi.h
index 22d0092093a..2f2c35d5d1f 100644
--- a/intern/cycles/kernel/closure/bsdf_microfacet_multi.h
+++ b/intern/cycles/kernel/closure/bsdf_microfacet_multi.h
@@ -40,20 +40,20 @@ ccl_device_forceinline float D_ggx_aniso(const float3 wm, const float2 alpha)
 }
 
 /* Sample slope distribution (based on page 14 of the supplemental implementation). */
-ccl_device_forceinline float2 mf_sampleP22_11(const float cosI, const float2 randU)
+ccl_device_forceinline float2 mf_sampleP22_11(const float cosI, const float randx, const float randy)
 {
 	if(cosI > 0.9999f || fabsf(cosI) < 1e-6f) {
-		const float r = sqrtf(randU.x / max(1.0f - randU.x, 1e-7f));
-		const float phi = M_2PI_F * randU.y;
+		const float r = sqrtf(randx / max(1.0f - randx, 1e-7f));
+		const float phi = M_2PI_F * randy;
 		return make_float2(r*cosf(phi), r*sinf(phi));
 	}
 
-	const float sinI = sqrtf(1.0f - cosI*cosI);
+	const float sinI = safe_sqrtf(1.0f - cosI*cosI);
 	const float tanI = sinI/cosI;
 	const float projA = 0.5f * (cosI + 1.0f);
 	if(projA < 0.0001f)
 		return make_float2(0.0f, 0.0f);
-	const float A = 2.0f*randU.x*projA / cosI - 1.0f;
+	const float A = 2.0f*randx*projA / cosI - 1.0f;
 	float tmp = A*A-1.0f;
 	if(fabsf(tmp) < 1e-7f)
 		return make_float2(0.0f, 0.0f);
@@ -64,24 +64,24 @@ ccl_device_forceinline float2 mf_sampleP22_11(const float cosI, const float2 ran
 	const float slopeX = (A < 0.0f || slopeX2 > 1.0f/tanI)? (tanI*tmp - D) : slopeX2;
 
 	float U2;
-	if(randU.y >= 0.5f)
-		U2 = 2.0f*(randU.y - 0.5f);
+	if(randy >= 0.5f)
+		U2 = 2.0f*(randy - 0.5f);
 	else
-		U2 = 2.0f*(0.5f - randU.y);
+		U2 = 2.0f*(0.5f - randy);
 	const float z = (U2*(U2*(U2*0.27385f-0.73369f)+0.46341f)) / (U2*(U2*(U2*0.093073f+0.309420f)-1.0f)+0.597999f);
 	const float slopeY = z * sqrtf(1.0f + slopeX*slopeX);
 
-	if(randU.y >= 0.5f)
+	if(randy >= 0.5f)
 		return make_float2(slopeX, slopeY);
 	else
 		return make_float2(slopeX, -slopeY);
 }
 
 /* Visible normal sampling for the GGX distribution (based on page 7 of the supplemental implementation). */
-ccl_device_forceinline float3 mf_sample_vndf(const float3 wi, const float2 alpha, const float2 randU)
+ccl_device_forceinline float3 mf_sample_vndf(const float3 wi, const float2 alpha, const float randx, const float randy)
 {
 	const float3 wi_11 = normalize(make_float3(alpha.x*wi.x, alpha.y*wi.y, wi.z));
-	const float2 slope_11 = mf_sampleP22_11(wi_11.z, randU);
+	const float2 slope_11 = mf_sampleP22_11(wi_11.z, randx, randy);
 
 	const float3 cossin_phi = safe_normalize(make_float3(wi_11.x, wi_11.y, 0.0f));
 	const float slope_x = alpha.x*(cossin_phi.x * slope_11.x - cossin_phi.y * slope_11.y);
@@ -474,6 +474,7 @@ ccl_device int bsdf_microfacet_multi_ggx_sample(KernelGlobals *kg, const ShaderC
 	*eval *= *pdf;
 
 	*omega_in = X*localO.x + Y*localO.y + Z*localO.z;
+
 #ifdef __RAY_DIFFERENTIALS__
 	*domega_in_dx = (2 * dot(Z, dIdx)) * Z - dIdx;
 	*domega_in_dy = (2 * dot(Z, dIdy)) * Z - dIdy;
diff --git a/intern/cycles/kernel/closure/bsdf_microfacet_multi_impl.h b/intern/cycles/kernel/closure/bsdf_microfacet_multi_impl.h
index 2eb2457c9e5..e73915dbda7 100644
--- a/intern/cycles/kernel/closure/bsdf_microfacet_multi_impl.h
+++ b/intern/cycles/kernel/closure/bsdf_microfacet_multi_impl.h
@@ -100,11 +100,14 @@ ccl_device_forceinline float3 MF_FUNCTION_FULL_NAME(mf_eval)(
 	bool outside = true;
 
 	for(int order = 0; order < 10; order++) {
-		/* Sample microfacet height and normal */
-		if(!mf_sample_height(wr, &hr, &C1_r, &G1_r, &lambda_r, lcg_step_float_addrspace(lcg_state)))
+		/* Sample microfacet height. */
+		float height_rand = lcg_step_float_addrspace(lcg_state);
+		if(!mf_sample_height(wr, &hr, &C1_r, &G1_r, &lambda_r, height_rand))
 			break;
-		float3 wm = mf_sample_vndf(-wr, alpha, make_float2(lcg_step_float_addrspace(lcg_state),
-		                                                   lcg_step_float_addrspace(lcg_state)));
+		/* Sample microfacet normal. */
+		float vndf_rand_y = lcg_step_float_addrspace(lcg_state);
+		float vndf_rand_x = lcg_step_float_addrspace(lcg_state);
+		float3 wm = mf_sample_vndf(-wr, alpha, vndf_rand_x, vndf_rand_y);
 
 #ifdef MF_MULTI_GLASS
 		if(order == 0 && use_fresnel) {
@@ -136,7 +139,8 @@ ccl_device_forceinline float3 MF_FUNCTION_FULL_NAME(mf_eval)(
 #ifdef MF_MULTI_GLASS
 			bool next_outside;
 			float3 wi_prev = -wr;
-			wr = mf_sample_phase_glass(-wr, outside? eta: 1.0f/eta, wm, lcg_step_float_addrspace(lcg_state), &next_outside);
+			float phase_rand = lcg_step_float_addrspace(lcg_state);
+			wr = mf_sample_phase_glass(-wr, outside? eta: 1.0f/eta, wm, phase_rand, &next_outside);
 			if(!next_outside) {
 				outside = !outside;
 				wr = -wr;
@@ -204,14 +208,16 @@ ccl_device_forceinline float3 MF_FUNCTION_FULL_NAME(mf_sample)(
 	int order;
 	for(order = 0; order < 10; order++) {
 		/* Sample microfacet height. */
-		if(!mf_sample_height(wr, &hr, &C1_r, &G1_r, &lambda_r, lcg_step_float_addrspace(lcg_state))) {
+		float height_rand = lcg_step_float_addrspace(lcg_state);
+		if(!mf_sample_height(wr, &hr, &C1_r, &G1_r, &lambda_r, height_rand)) {
 			/* The random walk has left the surface. */
 			*wo = outside? wr: -wr;
 			return throughput;
 		}
 		/* Sample microfacet normal. */
-		float3 wm = mf_sample_vndf(-wr, alpha, make_float2(lcg_step_float_addrspace(lcg_state),
-		                                                   lcg_step_float_addrspace(lcg_state)));
+		float vndf_rand_y = lcg_step_float_addrspace(lcg_state);
+		float vndf_rand_x = lcg_step_float_addrspace(lcg_state);
+		float3 wm = mf_sample_vndf(-wr, alpha, vndf_rand_x, vndf_rand_y);
 
 		/* First-bounce color is already accounted for in mix weight. */
 		if(!use_fresnel && order > 0)
@@ -221,7 +227,8 @@ ccl_device_forceinline float3 MF_FUNCTION_FULL_NAME(mf_sample)(
 #ifdef MF_MULTI_GLASS
 		bool next_outside;
 		float3 wi_prev = -wr;
-		wr = mf_sample_phase_glass(-wr, outside? eta: 1.0f/eta, wm, lcg_step_float_addrspace(lcg_state), &next_outside);
+		float phase_rand = lcg_step_float_addrspace(lcg_state);
+		wr = mf_sample_phase_glass(-wr, outside? eta: 1.0f/eta, wm, phase_rand, &next_outside);
 		if(!next_outside) {
 			hr = -hr;
 			wr = -wr;
diff --git a/intern/cycles/kernel/closure/bssrdf.h b/intern/cycles/kernel/closure/bssrdf.h
index f733ea4c517..267aeea6e86 100644
--- a/intern/cycles/kernel/closure/bssrdf.h
+++ b/intern/cycles/kernel/closure/bssrdf.h
@@ -348,8 +348,9 @@ ccl_device_inline Bssrdf *bssrdf_alloc(ShaderData *sd, float3 weight)
 {
 	Bssrdf *bssrdf = (Bssrdf*)closure_alloc(sd, sizeof(Bssrdf), CLOSURE_NONE_ID, weight);
 
-	if(!bssrdf)
+	if(bssrdf == NULL) {
 		return NULL;
+	}
 
 	float sample_weight = fabsf(average(weight));
 	bssrdf->sample_weight = sample_weight;
@@ -399,7 +400,7 @@ ccl_device int bssrdf_setup(Bssrdf *bssrdf, ClosureType type)
 			bssrdf_burley_setup(bssrdf);
 		}
 
-		return SD_BSDF|SD_BSDF_HAS_EVAL|SD_BSSRDF;
+		return SD_BSSRDF;
 	}
 }
 
diff --git a/intern/cycles/kernel/filter/filter_features_sse.h b/intern/cycles/kernel/filter/filter_features_sse.h
index 3185330994c..3ddd8712266 100644
--- a/intern/cycles/kernel/filter/filter_features_sse.h
+++ b/intern/cycles/kernel/filter/filter_features_sse.h
@@ -16,7 +16,7 @@
 
 CCL_NAMESPACE_BEGIN
 
-#define ccl_get_feature_sse(pass) _mm_loadu_ps(buffer + (pass)*pass_stride)
+#define ccl_get_feature_sse(pass) load_float4(buffer + (pass)*pass_stride)
 
 /* Loop over the pixels in the range [low.x, high.x) x [low.y, high.y), 4 at a time.
  * pixel_buffer always points to the first of the 4 current pixel in the first pass.
@@ -24,25 +24,25 @@ CCL_NAMESPACE_BEGIN
 
 #define FOR_PIXEL_WINDOW_SSE     pixel_buffer = buffer + (low.y - rect.y)*buffer_w + (low.x - rect.x); \
                                  for(pixel.y = low.y; pixel.y < high.y; pixel.y++) { \
-                                     __m128 y4 = _mm_set1_ps(pixel.y); \
+                                     float4 y4 = make_float4(pixel.y); \
                                      for(pixel.x = low.x; pixel.x < high.x; pixel.x += 4, pixel_buffer += 4) { \
-                                         __m128 x4 = _mm_add_ps(_mm_set1_ps(pixel.x), _mm_set_ps(3.0f, 2.0f, 1.0f, 0.0f)); \
-                                         __m128 active_pixels = _mm_cmplt_ps(x4, _mm_set1_ps(high.x));
+                                         float4 x4 = make_float4(pixel.x) + make_float4(0.0f, 1.0f, 2.0f, 3.0f); \
+                                         int4 active_pixels = x4 < make_float4(high.x);
 
 #define END_FOR_PIXEL_WINDOW_SSE     } \
                                      pixel_buffer += buffer_w - (pixel.x - low.x); \
                                  }
 
-ccl_device_inline void filter_get_features_sse(__m128 x, __m128 y,
-                                               __m128 active_pixels,
+ccl_device_inline void filter_get_features_sse(float4 x, float4 y,
+                                               int4 active_pixels,
                                                const float *ccl_restrict buffer,
-                                               __m128 *features,
-                                               const __m128 *ccl_restrict mean,
+                                               float4 *features,
+                                               const float4 *ccl_restrict mean,
                                                int pass_stride)
 {
 	features[0] = x;
 	features[1] = y;
-	features[2] = _mm_fabs_ps(ccl_get_feature_sse(0));
+	features[2] = fabs(ccl_get_feature_sse(0));
 	features[3] = ccl_get_feature_sse(1);
 	features[4] = ccl_get_feature_sse(2);
 	features[5] = ccl_get_feature_sse(3);
@@ -52,53 +52,41 @@ ccl_device_inline void filter_get_features_sse(__m128 x, __m128 y,
 	features[9] = ccl_get_feature_sse(7);
 	if(mean) {
 		for(int i = 0; i < DENOISE_FEATURES; i++)
-			features[i] = _mm_sub_ps(features[i], mean[i]);
+			features[i] = features[i] - mean[i];
 	}
 	for(int i = 0; i < DENOISE_FEATURES; i++)
-		features[i] = _mm_mask_ps(features[i], active_pixels);
+		features[i] = mask(active_pixels, features[i]);
 }
 
-ccl_device_inline void filter_get_feature_scales_sse(__m128 x, __m128 y,
-                                                     __m128 active_pixels,
+ccl_device_inline void filter_get_feature_scales_sse(float4 x, float4 y,
+                                                     int4 active_pixels,
                                                      const float *ccl_restrict buffer,
-                                                     __m128 *scales,
-                                                     const __m128 *ccl_restrict mean,
+                                                     float4 *scales,
+                                                     const float4 *ccl_restrict mean,
                                                      int pass_stride)
 {
-	scales[0] = _mm_mask_ps(_mm_fabs_ps(_mm_sub_ps(x, mean[0])), active_pixels);
-	scales[1] = _mm_mask_ps(_mm_fabs_ps(_mm_sub_ps(y, mean[1])), active_pixels);
-
-	scales[2] = _mm_mask_ps(_mm_fabs_ps(_mm_sub_ps(_mm_fabs_ps(ccl_get_feature_sse(0)), mean[2])), active_pixels);
-
-	__m128 diff, scale;
-	diff = _mm_sub_ps(ccl_get_feature_sse(1), mean[3]);
-	scale = _mm_mul_ps(diff, diff);
-	diff = _mm_sub_ps(ccl_get_feature_sse(2), mean[4]);
-	scale = _mm_add_ps(scale, _mm_mul_ps(diff, diff));
-	diff = _mm_sub_ps(ccl_get_feature_sse(3), mean[5]);
-	scale = _mm_add_ps(scale, _mm_mul_ps(diff, diff));
-	scales[3] = _mm_mask_ps(scale, active_pixels);
-
-	scales[4] = _mm_mask_ps(_mm_fabs_ps(_mm_sub_ps(ccl_get_feature_sse(4), mean[6])), active_pixels);
-
-	diff = _mm_sub_ps(ccl_get_feature_sse(5), mean[7]);
-	scale = _mm_mul_ps(diff, diff);
-	diff = _mm_sub_ps(ccl_get_feature_sse(6), mean[8]);
-	scale = _mm_add_ps(scale, _mm_mul_ps(diff, diff));
-	diff = _mm_sub_ps(ccl_get_feature_sse(7), mean[9]);
-	scale = _mm_add_ps(scale, _mm_mul_ps(diff, diff));
-	scales[5] = _mm_mask_ps(scale, active_pixels);
+	scales[0] = fabs(x - mean[0]);
+	scales[1] = fabs(y - mean[1]);
+	scales[2] = fabs(fabs(ccl_get_feature_sse(0)) - mean[2]);
+	scales[3] = sqr(ccl_get_feature_sse(1) - mean[3]) +
+	            sqr(ccl_get_feature_sse(2) - mean[4]) +
+	            sqr(ccl_get_feature_sse(3) - mean[5]);
+	scales[4] = fabs(ccl_get_feature_sse(4) - mean[6]);
+	scales[5] = sqr(ccl_get_feature_sse(5) - mean[7]) +
+	            sqr(ccl_get_feature_sse(6) - mean[8]) +
+	            sqr(ccl_get_feature_sse(7) - mean[9]);
+	for(int i = 0; i < 6; i++)
+		scales[i] = mask(active_pixels, scales[i]);
 }
 
-ccl_device_inline void filter_calculate_scale_sse(__m128 *scale)
+ccl_device_inline void filter_calculate_scale_sse(float4 *scale)
 {
-	scale[0] = _mm_rcp_ps(_mm_max_ps(_mm_hmax_ps(scale[0]), _mm_set1_ps(0.01f)));
-	scale[1] = _mm_rcp_ps(_mm_max_ps(_mm_hmax_ps(scale[1]), _mm_set1_ps(0.01f)));
-	scale[2] = _mm_rcp_ps(_mm_max_ps(_mm_hmax_ps(scale[2]), _mm_set1_ps(0.01f)));
-	scale[6] = _mm_rcp_ps(_mm_max_ps(_mm_hmax_ps(scale[4]), _mm_set1_ps(0.01f)));
-
-	scale[7] = scale[8] = scale[9] = _mm_rcp_ps(_mm_max_ps(_mm_hmax_ps(_mm_sqrt_ps(scale[5])), _mm_set1_ps(0.01f)));
-	scale[3] = scale[4] = scale[5] = _mm_rcp_ps(_mm_max_ps(_mm_hmax_ps(_mm_sqrt_ps(scale[3])), _mm_set1_ps(0.01f)));
+	scale[0] = rcp(max(reduce_max(scale[0]), make_float4(0.01f)));
+	scale[1] = rcp(max(reduce_max(scale[1]), make_float4(0.01f)));
+	scale[2] = rcp(max(reduce_max(scale[2]), make_float4(0.01f)));
+	scale[6] = rcp(max(reduce_max(scale[4]), make_float4(0.01f)));
+	scale[7] = scale[8] = scale[9] = rcp(max(reduce_max(sqrt(scale[5])), make_float4(0.01f)));
+	scale[3] = scale[4] = scale[5] = rcp(max(reduce_max(sqrt(scale[3])), make_float4(0.01f)));
 }
 
 
diff --git a/intern/cycles/kernel/filter/filter_nlm_cpu.h b/intern/cycles/kernel/filter/filter_nlm_cpu.h
index 3e752bce68f..5e989331bc2 100644
--- a/intern/cycles/kernel/filter/filter_nlm_cpu.h
+++ b/intern/cycles/kernel/filter/filter_nlm_cpu.h
@@ -50,10 +50,8 @@ ccl_device_inline void kernel_filter_nlm_blur(const float *ccl_restrict differen
                                               int w,
                                               int f)
 {
-#ifdef __KERNEL_SSE3__
-	int aligned_lowx = (rect.x & ~(3));
-	int aligned_highx = ((rect.z + 3) & ~(3));
-#endif
+	int aligned_lowx = rect.x / 4;
+	int aligned_highx = (rect.z + 3) / 4;
 	for(int y = rect.y; y < rect.w; y++) {
 		const int low = max(rect.y, y-f);
 		const int high = min(rect.w, y+f+1);
@@ -61,15 +59,11 @@ ccl_device_inline void kernel_filter_nlm_blur(const float *ccl_restrict differen
 			out_image[y*w+x] = 0.0f;
 		}
 		for(int y1 = low; y1 < high; y1++) {
-#ifdef __KERNEL_SSE3__
-			for(int x = aligned_lowx; x < aligned_highx; x+=4) {
-				_mm_store_ps(out_image + y*w+x, _mm_add_ps(_mm_load_ps(out_image + y*w+x), _mm_load_ps(difference_image + y1*w+x)));
+			float4* out_image4 = (float4*)(out_image + y*w);
+			float4* difference_image4 = (float4*)(difference_image + y1*w);
+			for(int x = aligned_lowx; x < aligned_highx; x++) {
+				out_image4[x] += difference_image4[x];
 			}
-#else
-			for(int x = rect.x; x < rect.z; x++) {
-				out_image[y*w+x] += difference_image[y1*w+x];
-			}
-#endif
 		}
 		for(int x = rect.x; x < rect.z; x++) {
 			out_image[y*w+x] *= 1.0f/(high - low);
diff --git a/intern/cycles/kernel/filter/filter_prefilter.h b/intern/cycles/kernel/filter/filter_prefilter.h
index d5ae1b73927..2aeb54a62be 100644
--- a/intern/cycles/kernel/filter/filter_prefilter.h
+++ b/intern/cycles/kernel/filter/filter_prefilter.h
@@ -61,8 +61,8 @@ ccl_device void kernel_filter_divide_shadow(int sample,
 		varA = max(0.0f, varA - unfilteredA[idx]*unfilteredA[idx]*odd_sample);
 		varB = max(0.0f, varB - unfilteredB[idx]*unfilteredB[idx]*even_sample);
 	}
-	varA /= (odd_sample - 1);
-	varB /= (even_sample - 1);
+	varA /= max(odd_sample - 1, 1);
+	varB /= max(even_sample - 1, 1);
 
 	sampleVariance[idx]  = 0.5f*(varA + varB) / sample;
 	sampleVarianceV[idx] = 0.5f * (varA - varB) * (varA - varB) / (sample*sample);
@@ -96,11 +96,17 @@ ccl_device void kernel_filter_get_feature(int sample,
 	int idx = (y-rect.y)*buffer_w + (x - rect.x);
 
 	mean[idx] = center_buffer[m_offset] / sample;
-	if(use_split_variance) {
-		variance[idx] = max(0.0f, (center_buffer[v_offset] - mean[idx]*mean[idx]*sample) / (sample * (sample-1)));
+	if(sample > 1) {
+		if(use_split_variance) {
+			variance[idx] = max(0.0f, (center_buffer[v_offset] - mean[idx]*mean[idx]*sample) / (sample * (sample-1)));
+		}
+		else {
+			variance[idx] = center_buffer[v_offset] / (sample * (sample-1));
+		}
 	}
 	else {
-		variance[idx] = center_buffer[v_offset] / (sample * (sample-1));
+		/* Can't compute variance with single sample, just set it very high. */
+		variance[idx] = 1e10f;
 	}
 }
 
@@ -114,49 +120,56 @@ ccl_device void kernel_filter_detect_outliers(int x, int y,
 {
 	int buffer_w = align_up(rect.z - rect.x, 4);
 
-	int n = 0;
-	float values[25];
-	for(int y1 = max(y-2, rect.y); y1 < min(y+3, rect.w); y1++) {
-		for(int x1 = max(x-2, rect.x); x1 < min(x+3, rect.z); x1++) {
-			int idx = (y1-rect.y)*buffer_w + (x1-rect.x);
-			float L = average(make_float3(image[idx], image[idx+pass_stride], image[idx+2*pass_stride]));
-
-			/* Find the position of L. */
-			int i;
-			for(i = 0; i < n; i++) {
-				if(values[i] > L) break;
-			}
-			/* Make space for L by shifting all following values to the right. */
-			for(int j = n; j > i; j--) {
-				values[j] = values[j-1];
-			}
-			/* Insert L. */
-			values[i] = L;
-			n++;
-		}
-	}
-
 	int idx = (y-rect.y)*buffer_w + (x-rect.x);
-	float L = average(make_float3(image[idx], image[idx+pass_stride], image[idx+2*pass_stride]));
+	float3 color = make_float3(image[idx], image[idx+pass_stride], image[idx+2*pass_stride]);
 
-	float ref = 2.0f*values[(int)(n*0.75f)];
 	float fac = 1.0f;
-	if(L > ref) {
-		/* The pixel appears to be an outlier.
-		 * However, it may just be a legitimate highlight. Therefore, it is checked how likely it is that the pixel
-		 * should actually be at the reference value:
-		 * If the reference is within the 3-sigma interval, the pixel is assumed to be a statistical outlier.
-		 * Otherwise, it is very unlikely that the pixel should be darker, which indicates a legitimate highlight.
-		 */
-		float stddev = sqrtf(average(make_float3(variance[idx], variance[idx+pass_stride], variance[idx+2*pass_stride])));
-		if(L - 3*stddev < ref) {
-			/* The pixel is an outlier, so negate the depth value to mark it as one.
-			 * Also, scale its brightness down to the outlier threshold to avoid trouble with the NLM weights. */
-			depth[idx] = -depth[idx];
-			fac = ref/L;
-			variance[idx              ] *= fac*fac;
-			variance[idx + pass_stride] *= fac*fac;
-			variance[idx+2*pass_stride] *= fac*fac;
+	if(color.x < 0.0f || color.y < 0.0f || color.z < 0.0f) {
+		depth[idx] = -depth[idx];
+		fac = 0.0f;
+	}
+	else {
+		float L = average(color);
+		int n = 0;
+		float values[25];
+		for(int y1 = max(y-2, rect.y); y1 < min(y+3, rect.w); y1++) {
+			for(int x1 = max(x-2, rect.x); x1 < min(x+3, rect.z); x1++) {
+				int idx = (y1-rect.y)*buffer_w + (x1-rect.x);
+				float L = average(make_float3(image[idx], image[idx+pass_stride], image[idx+2*pass_stride]));
+
+				/* Find the position of L. */
+				int i;
+				for(i = 0; i < n; i++) {
+					if(values[i] > L) break;
+				}
+				/* Make space for L by shifting all following values to the right. */
+				for(int j = n; j > i; j--) {
+					values[j] = values[j-1];
+				}
+				/* Insert L. */
+				values[i] = L;
+				n++;
+			}
+		}
+
+		float ref = 2.0f*values[(int)(n*0.75f)];
+		if(L > ref) {
+			/* The pixel appears to be an outlier.
+			 * However, it may just be a legitimate highlight. Therefore, it is checked how likely it is that the pixel
+			 * should actually be at the reference value:
+			 * If the reference is within the 3-sigma interval, the pixel is assumed to be a statistical outlier.
+			 * Otherwise, it is very unlikely that the pixel should be darker, which indicates a legitimate highlight.
+			 */
+			float stddev = sqrtf(average(make_float3(variance[idx], variance[idx+pass_stride], variance[idx+2*pass_stride])));
+			if(L - 3*stddev < ref) {
+				/* The pixel is an outlier, so negate the depth value to mark it as one.
+				 * Also, scale its brightness down to the outlier threshold to avoid trouble with the NLM weights. */
+				depth[idx] = -depth[idx];
+				fac = ref/L;
+				variance[idx              ] *= fac*fac;
+				variance[idx + pass_stride] *= fac*fac;
+				variance[idx+2*pass_stride] *= fac*fac;
+			}
 		}
 	}
 	out[idx              ] = fac*image[idx];
diff --git a/intern/cycles/kernel/filter/filter_transform_sse.h b/intern/cycles/kernel/filter/filter_transform_sse.h
index 30dc2969b11..9e65f61664b 100644
--- a/intern/cycles/kernel/filter/filter_transform_sse.h
+++ b/intern/cycles/kernel/filter/filter_transform_sse.h
@@ -24,7 +24,7 @@ ccl_device void kernel_filter_construct_transform(const float *ccl_restrict buff
 {
 	int buffer_w = align_up(rect.z - rect.x, 4);
 
-	__m128 features[DENOISE_FEATURES];
+	float4 features[DENOISE_FEATURES];
 	const float *ccl_restrict pixel_buffer;
 	int2 pixel;
 
@@ -34,19 +34,19 @@ ccl_device void kernel_filter_construct_transform(const float *ccl_restrict buff
 	                      min(rect.w, y + radius + 1));
 	int num_pixels = (high.y - low.y) * (high.x - low.x);
 
-	__m128 feature_means[DENOISE_FEATURES];
+	float4 feature_means[DENOISE_FEATURES];
 	math_vector_zero_sse(feature_means, DENOISE_FEATURES);
 	FOR_PIXEL_WINDOW_SSE {
 		filter_get_features_sse(x4, y4, active_pixels, pixel_buffer, features, NULL, pass_stride);
 		math_vector_add_sse(feature_means, DENOISE_FEATURES, features);
 	} END_FOR_PIXEL_WINDOW_SSE
 
-	__m128 pixel_scale = _mm_set1_ps(1.0f / num_pixels);
+	float4 pixel_scale = make_float4(1.0f / num_pixels);
 	for(int i = 0; i < DENOISE_FEATURES; i++) {
-		feature_means[i] = _mm_mul_ps(_mm_hsum_ps(feature_means[i]), pixel_scale);
+		feature_means[i] = reduce_add(feature_means[i]) * pixel_scale;
 	}
 
-	__m128 feature_scale[DENOISE_FEATURES];
+	float4 feature_scale[DENOISE_FEATURES];
 	math_vector_zero_sse(feature_scale, DENOISE_FEATURES);
 	FOR_PIXEL_WINDOW_SSE {
 		filter_get_feature_scales_sse(x4, y4, active_pixels, pixel_buffer, features, feature_means, pass_stride);
@@ -55,12 +55,12 @@ ccl_device void kernel_filter_construct_transform(const float *ccl_restrict buff
 
 	filter_calculate_scale_sse(feature_scale);
 
-	__m128 feature_matrix_sse[DENOISE_FEATURES*DENOISE_FEATURES];
+	float4 feature_matrix_sse[DENOISE_FEATURES*DENOISE_FEATURES];
 	math_matrix_zero_sse(feature_matrix_sse, DENOISE_FEATURES);
 	FOR_PIXEL_WINDOW_SSE {
 		filter_get_features_sse(x4, y4, active_pixels, pixel_buffer, features, feature_means, pass_stride);
 		math_vector_mul_sse(features, DENOISE_FEATURES, feature_scale);
-		math_matrix_add_gramian_sse(feature_matrix_sse, DENOISE_FEATURES, features, _mm_set1_ps(1.0f));
+		math_matrix_add_gramian_sse(feature_matrix_sse, DENOISE_FEATURES, features, make_float4(1.0f));
 	} END_FOR_PIXEL_WINDOW_SSE
 
 	float feature_matrix[DENOISE_FEATURES*DENOISE_FEATURES];
@@ -98,7 +98,7 @@ ccl_device void kernel_filter_construct_transform(const float *ccl_restrict buff
 
 	/* Bake the feature scaling into the transformation matrix. */
 	for(int i = 0; i < DENOISE_FEATURES; i++) {
-		math_vector_scale(transform + i*DENOISE_FEATURES, _mm_cvtss_f32(feature_scale[i]), *rank);
+		math_vector_scale(transform + i*DENOISE_FEATURES, feature_scale[i][0], *rank);
 	}
 }
 
diff --git a/intern/cycles/kernel/geom/geom.h b/intern/cycles/kernel/geom/geom.h
index c623e3490fd..f34b77ebc07 100644
--- a/intern/cycles/kernel/geom/geom.h
+++ b/intern/cycles/kernel/geom/geom.h
@@ -27,6 +27,7 @@
 #include "kernel/geom/geom_motion_triangle_shader.h"
 #include "kernel/geom/geom_motion_curve.h"
 #include "kernel/geom/geom_curve.h"
+#include "kernel/geom/geom_curve_intersect.h"
 #include "kernel/geom/geom_volume.h"
 #include "kernel/geom/geom_primitive.h"
 
diff --git a/intern/cycles/kernel/geom/geom_curve.h b/intern/cycles/kernel/geom/geom_curve.h
index 5c3b0ee3c15..e35267f02bf 100644
--- a/intern/cycles/kernel/geom/geom_curve.h
+++ b/intern/cycles/kernel/geom/geom_curve.h
@@ -16,18 +16,13 @@ CCL_NAMESPACE_BEGIN
 
 /* Curve Primitive
  *
- * Curve primitive for rendering hair and fur. These can be render as flat ribbons
- * or curves with actual thickness. The curve can also be rendered as line segments
- * rather than curves for better performance */
+ * Curve primitive for rendering hair and fur. These can be render as flat
+ * ribbons or curves with actual thickness. The curve can also be rendered as
+ * line segments rather than curves for better performance.
+ */
 
 #ifdef __HAIR__
 
-#if defined(__KERNEL_CUDA__) && (__CUDA_ARCH__ < 300)
-#  define ccl_device_curveintersect ccl_device
-#else
-#  define ccl_device_curveintersect ccl_device_forceinline
-#endif
-
 /* Reading attributes on various curve elements */
 
 ccl_device float curve_attribute_float(KernelGlobals *kg, const ShaderData *sd, const AttributeDescriptor desc, float *dx, float *dy)
@@ -151,7 +146,7 @@ ccl_device float3 curve_motion_center_location(KernelGlobals *kg, ShaderData *sd
 /* Curve tangent normal */
 
 ccl_device float3 curve_tangent_normal(KernelGlobals *kg, ShaderData *sd)
-{	
+{
 	float3 tgN = make_float3(0.0f,0.0f,0.0f);
 
 	if(sd->type & PRIMITIVE_ALL_CURVE) {
@@ -219,893 +214,6 @@ ccl_device_inline void curvebounds(float *lower, float *upper, float *extremta,
 	}
 }
 
-#ifdef __KERNEL_SSE2__
-ccl_device_inline ssef transform_point_T3(const ssef t[3], const ssef &a)
-{
-	return madd(shuffle<0>(a), t[0], madd(shuffle<1>(a), t[1], shuffle<2>(a) * t[2]));
-}
-#endif
-
-#ifdef __KERNEL_SSE2__
-/* Pass P and dir by reference to aligned vector */
-ccl_device_curveintersect bool bvh_cardinal_curve_intersect(KernelGlobals *kg, Intersection *isect,
-	const float3 &P, const float3 &dir, uint visibility, int object, int curveAddr, float time, int type, uint *lcg_state, float difl, float extmax)
-#else
-ccl_device_curveintersect bool bvh_cardinal_curve_intersect(KernelGlobals *kg, Intersection *isect,
-	float3 P, float3 dir, uint visibility, int object, int curveAddr, float time,int type, uint *lcg_state, float difl, float extmax)
-#endif
-{
-	const bool is_curve_primitive = (type & PRIMITIVE_CURVE);
-
-	if(!is_curve_primitive && kernel_data.bvh.use_bvh_steps) {
-		const float2 prim_time = kernel_tex_fetch(__prim_time, curveAddr);
-		if(time < prim_time.x || time > prim_time.y) {
-			return false;
-		}
-	}
-
-	int segment = PRIMITIVE_UNPACK_SEGMENT(type);
-	float epsilon = 0.0f;
-	float r_st, r_en;
-
-	int depth = kernel_data.curve.subdivisions;
-	int flags = kernel_data.curve.curveflags;
-	int prim = kernel_tex_fetch(__prim_index, curveAddr);
-
-#ifdef __KERNEL_SSE2__
-	ssef vdir = load4f(dir);
-	ssef vcurve_coef[4];
-	const float3 *curve_coef = (float3 *)vcurve_coef;
-	
-	{
-		ssef dtmp = vdir * vdir;
-		ssef d_ss = mm_sqrt(dtmp + shuffle<2>(dtmp));
-		ssef rd_ss = load1f_first(1.0f) / d_ss;
-
-		ssei v00vec = load4i((ssei *)&kg->__curves.data[prim]);
-		int2 &v00 = (int2 &)v00vec;
-
-		int k0 = v00.x + segment;
-		int k1 = k0 + 1;
-		int ka = max(k0 - 1, v00.x);
-		int kb = min(k1 + 1, v00.x + v00.y - 1);
-
-#if defined(__KERNEL_AVX2__) && defined(__KERNEL_SSE__) && (!defined(_MSC_VER) || _MSC_VER > 1800)
-		avxf P_curve_0_1, P_curve_2_3;
-		if(is_curve_primitive) {
-			P_curve_0_1 = _mm256_loadu2_m128(&kg->__curve_keys.data[k0].x, &kg->__curve_keys.data[ka].x);
-			P_curve_2_3 = _mm256_loadu2_m128(&kg->__curve_keys.data[kb].x, &kg->__curve_keys.data[k1].x);
-		}
-		else {
-			int fobject = (object == OBJECT_NONE) ? kernel_tex_fetch(__prim_object, curveAddr) : object;
-			motion_cardinal_curve_keys_avx(kg, fobject, prim, time, ka, k0, k1, kb, &P_curve_0_1,&P_curve_2_3);
-		}
-#else  /* __KERNEL_AVX2__ */
-		ssef P_curve[4];
-
-		if(is_curve_primitive) {
-			P_curve[0] = load4f(&kg->__curve_keys.data[ka].x);
-			P_curve[1] = load4f(&kg->__curve_keys.data[k0].x);
-			P_curve[2] = load4f(&kg->__curve_keys.data[k1].x);
-			P_curve[3] = load4f(&kg->__curve_keys.data[kb].x);
-		}
-		else {
-			int fobject = (object == OBJECT_NONE)? kernel_tex_fetch(__prim_object, curveAddr): object;
-			motion_cardinal_curve_keys(kg, fobject, prim, time, ka, k0, k1, kb, (float4*)&P_curve);
-		}
-#endif  /* __KERNEL_AVX2__ */
-
-		ssef rd_sgn = set_sign_bit<0, 1, 1, 1>(shuffle<0>(rd_ss));
-		ssef mul_zxxy = shuffle<2, 0, 0, 1>(vdir) * rd_sgn;
-		ssef mul_yz = shuffle<1, 2, 1, 2>(vdir) * mul_zxxy;
-		ssef mul_shuf = shuffle<0, 1, 2, 3>(mul_zxxy, mul_yz);
-		ssef vdir0 = vdir & cast(ssei(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0));
-
-		ssef htfm0 = shuffle<0, 2, 0, 3>(mul_shuf, vdir0);
-		ssef htfm1 = shuffle<1, 0, 1, 3>(load1f_first(extract<0>(d_ss)), vdir0);
-		ssef htfm2 = shuffle<1, 3, 2, 3>(mul_shuf, vdir0);
-
-#if defined(__KERNEL_AVX2__) && defined(__KERNEL_SSE__) && (!defined(_MSC_VER) || _MSC_VER > 1800)
-		const avxf vPP = _mm256_broadcast_ps(&P.m128);
-		const avxf htfm00 = avxf(htfm0.m128, htfm0.m128);
-		const avxf htfm11 = avxf(htfm1.m128, htfm1.m128);
-		const avxf htfm22 = avxf(htfm2.m128, htfm2.m128);
-
-		const avxf p01 = madd(shuffle<0>(P_curve_0_1 - vPP),
-		                      htfm00,
-		                      madd(shuffle<1>(P_curve_0_1 - vPP),
-		                           htfm11,
-		                           shuffle<2>(P_curve_0_1 - vPP) * htfm22));
-		const avxf p23 = madd(shuffle<0>(P_curve_2_3 - vPP),
-		                      htfm00,
-		                      madd(shuffle<1>(P_curve_2_3 - vPP),
-		                           htfm11,
-		                           shuffle<2>(P_curve_2_3 - vPP)*htfm22));
-
-		const ssef p0 = _mm256_castps256_ps128(p01);
-		const ssef p1 = _mm256_extractf128_ps(p01, 1);
-		const ssef p2 = _mm256_castps256_ps128(p23);
-		const ssef p3 = _mm256_extractf128_ps(p23, 1);
-
-		const ssef P_curve_1 = _mm256_extractf128_ps(P_curve_0_1, 1);
-		r_st = ((float4 &)P_curve_1).w;
-		const ssef P_curve_2 = _mm256_castps256_ps128(P_curve_2_3);
-		r_en = ((float4 &)P_curve_2).w;
-#else  /* __KERNEL_AVX2__ */
-		ssef htfm[] = { htfm0, htfm1, htfm2 };
-		ssef vP = load4f(P);
-		ssef p0 = transform_point_T3(htfm, P_curve[0] - vP);
-		ssef p1 = transform_point_T3(htfm, P_curve[1] - vP);
-		ssef p2 = transform_point_T3(htfm, P_curve[2] - vP);
-		ssef p3 = transform_point_T3(htfm, P_curve[3] - vP);
-
-		r_st = ((float4 &)P_curve[1]).w;
-		r_en = ((float4 &)P_curve[2]).w;
-#endif  /* __KERNEL_AVX2__ */
-
-		float fc = 0.71f;
-		ssef vfc = ssef(fc);
-		ssef vfcxp3 = vfc * p3;
-
-		vcurve_coef[0] = p1;
-		vcurve_coef[1] = vfc * (p2 - p0);
-		vcurve_coef[2] = madd(ssef(fc * 2.0f), p0, madd(ssef(fc - 3.0f), p1, msub(ssef(3.0f - 2.0f * fc), p2, vfcxp3)));
-		vcurve_coef[3] = msub(ssef(fc - 2.0f), p2 - p1, msub(vfc, p0, vfcxp3));
-
-	}
-#else
-	float3 curve_coef[4];
-
-	/* curve Intersection check */
-	/* obtain curve parameters */
-	{
-		/* ray transform created - this should be created at beginning of intersection loop */
-		Transform htfm;
-		float d = sqrtf(dir.x * dir.x + dir.z * dir.z);
-		htfm = make_transform(
-			dir.z / d, 0, -dir.x /d, 0,
-			-dir.x * dir.y /d, d, -dir.y * dir.z /d, 0,
-			dir.x, dir.y, dir.z, 0,
-			0, 0, 0, 1);
-
-		float4 v00 = kernel_tex_fetch(__curves, prim);
-
-		int k0 = __float_as_int(v00.x) + segment;
-		int k1 = k0 + 1;
-
-		int ka = max(k0 - 1,__float_as_int(v00.x));
-		int kb = min(k1 + 1,__float_as_int(v00.x) + __float_as_int(v00.y) - 1);
-
-		float4 P_curve[4];
-
-		if(is_curve_primitive) {
-			P_curve[0] = kernel_tex_fetch(__curve_keys, ka);
-			P_curve[1] = kernel_tex_fetch(__curve_keys, k0);
-			P_curve[2] = kernel_tex_fetch(__curve_keys, k1);
-			P_curve[3] = kernel_tex_fetch(__curve_keys, kb);
-		}
-		else {
-			int fobject = (object == OBJECT_NONE)? kernel_tex_fetch(__prim_object, curveAddr): object;
-			motion_cardinal_curve_keys(kg, fobject, prim, time, ka, k0, k1, kb, P_curve);
-		}
-
-		float3 p0 = transform_point(&htfm, float4_to_float3(P_curve[0]) - P);
-		float3 p1 = transform_point(&htfm, float4_to_float3(P_curve[1]) - P);
-		float3 p2 = transform_point(&htfm, float4_to_float3(P_curve[2]) - P);
-		float3 p3 = transform_point(&htfm, float4_to_float3(P_curve[3]) - P);
-
-		float fc = 0.71f;
-		curve_coef[0] = p1;
-		curve_coef[1] = -fc*p0 + fc*p2;
-		curve_coef[2] = 2.0f * fc * p0 + (fc - 3.0f) * p1 + (3.0f - 2.0f * fc) * p2 - fc * p3;
-		curve_coef[3] = -fc * p0 + (2.0f - fc) * p1 + (fc - 2.0f) * p2 + fc * p3;
-		r_st = P_curve[1].w;
-		r_en = P_curve[2].w;
-	}
-#endif
-
-	float r_curr = max(r_st, r_en);
-
-	if((flags & CURVE_KN_RIBBONS) || !(flags & CURVE_KN_BACKFACING))
-		epsilon = 2 * r_curr;
-
-	/* find bounds - this is slow for cubic curves */
-	float upper, lower;
-
-	float zextrem[4];
-	curvebounds(&lower, &upper, &zextrem[0], &zextrem[1], &zextrem[2], &zextrem[3], curve_coef[0].z, curve_coef[1].z, curve_coef[2].z, curve_coef[3].z);
-	if(lower - r_curr > isect->t || upper + r_curr < epsilon)
-		return false;
-
-	/* minimum width extension */
-	float mw_extension = min(difl * fabsf(upper), extmax);
-	float r_ext = mw_extension + r_curr;
-
-	float xextrem[4];
-	curvebounds(&lower, &upper, &xextrem[0], &xextrem[1], &xextrem[2], &xextrem[3], curve_coef[0].x, curve_coef[1].x, curve_coef[2].x, curve_coef[3].x);
-	if(lower > r_ext || upper < -r_ext)
-		return false;
-
-	float yextrem[4];
-	curvebounds(&lower, &upper, &yextrem[0], &yextrem[1], &yextrem[2], &yextrem[3], curve_coef[0].y, curve_coef[1].y, curve_coef[2].y, curve_coef[3].y);
-	if(lower > r_ext || upper < -r_ext)
-		return false;
-
-	/* setup recurrent loop */
-	int level = 1 << depth;
-	int tree = 0;
-	float resol = 1.0f / (float)level;
-	bool hit = false;
-
-	/* begin loop */
-	while(!(tree >> (depth))) {
-		const float i_st = tree * resol;
-		const float i_en = i_st + (level * resol);
-
-#ifdef __KERNEL_SSE2__
-		ssef vi_st = ssef(i_st), vi_en = ssef(i_en);
-		ssef vp_st = madd(madd(madd(vcurve_coef[3], vi_st, vcurve_coef[2]), vi_st, vcurve_coef[1]), vi_st, vcurve_coef[0]);
-		ssef vp_en = madd(madd(madd(vcurve_coef[3], vi_en, vcurve_coef[2]), vi_en, vcurve_coef[1]), vi_en, vcurve_coef[0]);
-
-		ssef vbmin = min(vp_st, vp_en);
-		ssef vbmax = max(vp_st, vp_en);
-
-		float3 &bmin = (float3 &)vbmin, &bmax = (float3 &)vbmax;
-		float &bminx = bmin.x, &bminy = bmin.y, &bminz = bmin.z;
-		float &bmaxx = bmax.x, &bmaxy = bmax.y, &bmaxz = bmax.z;
-		float3 &p_st = (float3 &)vp_st, &p_en = (float3 &)vp_en;
-#else
-		float3 p_st = ((curve_coef[3] * i_st + curve_coef[2]) * i_st + curve_coef[1]) * i_st + curve_coef[0];
-		float3 p_en = ((curve_coef[3] * i_en + curve_coef[2]) * i_en + curve_coef[1]) * i_en + curve_coef[0];
-		
-		float bminx = min(p_st.x, p_en.x);
-		float bmaxx = max(p_st.x, p_en.x);
-		float bminy = min(p_st.y, p_en.y);
-		float bmaxy = max(p_st.y, p_en.y);
-		float bminz = min(p_st.z, p_en.z);
-		float bmaxz = max(p_st.z, p_en.z);
-#endif
-
-		if(xextrem[0] >= i_st && xextrem[0] <= i_en) {
-			bminx = min(bminx,xextrem[1]);
-			bmaxx = max(bmaxx,xextrem[1]);
-		}
-		if(xextrem[2] >= i_st && xextrem[2] <= i_en) {
-			bminx = min(bminx,xextrem[3]);
-			bmaxx = max(bmaxx,xextrem[3]);
-		}
-		if(yextrem[0] >= i_st && yextrem[0] <= i_en) {
-			bminy = min(bminy,yextrem[1]);
-			bmaxy = max(bmaxy,yextrem[1]);
-		}
-		if(yextrem[2] >= i_st && yextrem[2] <= i_en) {
-			bminy = min(bminy,yextrem[3]);
-			bmaxy = max(bmaxy,yextrem[3]);
-		}
-		if(zextrem[0] >= i_st && zextrem[0] <= i_en) {
-			bminz = min(bminz,zextrem[1]);
-			bmaxz = max(bmaxz,zextrem[1]);
-		}
-		if(zextrem[2] >= i_st && zextrem[2] <= i_en) {
-			bminz = min(bminz,zextrem[3]);
-			bmaxz = max(bmaxz,zextrem[3]);
-		}
-
-		float r1 = r_st + (r_en - r_st) * i_st;
-		float r2 = r_st + (r_en - r_st) * i_en;
-		r_curr = max(r1, r2);
-
-		mw_extension = min(difl * fabsf(bmaxz), extmax);
-		float r_ext = mw_extension + r_curr;
-		float coverage = 1.0f;
-
-		if(bminz - r_curr > isect->t || bmaxz + r_curr < epsilon || bminx > r_ext|| bmaxx < -r_ext|| bminy > r_ext|| bmaxy < -r_ext) {
-			/* the bounding box does not overlap the square centered at O */
-			tree += level;
-			level = tree & -tree;
-		}
-		else if(level == 1) {
-
-			/* the maximum recursion depth is reached.
-			 * check if dP0.(Q-P0)>=0 and dPn.(Pn-Q)>=0.
-			 * dP* is reversed if necessary.*/
-			float t = isect->t;
-			float u = 0.0f;
-			float gd = 0.0f;
-
-			if(flags & CURVE_KN_RIBBONS) {
-				float3 tg = (p_en - p_st);
-#ifdef __KERNEL_SSE__
-				const float3 tg_sq = tg * tg;
-				float w = tg_sq.x + tg_sq.y;
-#else
-				float w = tg.x * tg.x + tg.y * tg.y;
-#endif
-				if(w == 0) {
-					tree++;
-					level = tree & -tree;
-					continue;
-				}
-#ifdef __KERNEL_SSE__
-				const float3 p_sttg = p_st * tg;
-				w = -(p_sttg.x + p_sttg.y) / w;
-#else
-				w = -(p_st.x * tg.x + p_st.y * tg.y) / w;
-#endif
-				w = saturate(w);
-
-				/* compute u on the curve segment */
-				u = i_st * (1 - w) + i_en * w;
-				r_curr = r_st + (r_en - r_st) * u;
-				/* compare x-y distances */
-				float3 p_curr = ((curve_coef[3] * u + curve_coef[2]) * u + curve_coef[1]) * u + curve_coef[0];
-
-				float3 dp_st = (3 * curve_coef[3] * i_st + 2 * curve_coef[2]) * i_st + curve_coef[1];
-				if(dot(tg, dp_st)< 0)
-					dp_st *= -1;
-				if(dot(dp_st, -p_st) + p_curr.z * dp_st.z < 0) {
-					tree++;
-					level = tree & -tree;
-					continue;
-				}
-				float3 dp_en = (3 * curve_coef[3] * i_en + 2 * curve_coef[2]) * i_en + curve_coef[1];
-				if(dot(tg, dp_en) < 0)
-					dp_en *= -1;
-				if(dot(dp_en, p_en) - p_curr.z * dp_en.z < 0) {
-					tree++;
-					level = tree & -tree;
-					continue;
-				}
-
-				/* compute coverage */
-				float r_ext = r_curr;
-				coverage = 1.0f;
-				if(difl != 0.0f) {
-					mw_extension = min(difl * fabsf(bmaxz), extmax);
-					r_ext = mw_extension + r_curr;
-#ifdef __KERNEL_SSE__
-					const float3 p_curr_sq = p_curr * p_curr;
-					const float3 dxxx(_mm_sqrt_ss(_mm_hadd_ps(p_curr_sq.m128, p_curr_sq.m128)));
-					float d = dxxx.x;
-#else
-					float d = sqrtf(p_curr.x * p_curr.x + p_curr.y * p_curr.y);
-#endif
-					float d0 = d - r_curr;
-					float d1 = d + r_curr;
-					float inv_mw_extension = 1.0f/mw_extension;
-					if(d0 >= 0)
-						coverage = (min(d1 * inv_mw_extension, 1.0f) - min(d0 * inv_mw_extension, 1.0f)) * 0.5f;
-					else // inside
-						coverage = (min(d1 * inv_mw_extension, 1.0f) + min(-d0 * inv_mw_extension, 1.0f)) * 0.5f;
-				}
-				
-				if(p_curr.x * p_curr.x + p_curr.y * p_curr.y >= r_ext * r_ext || p_curr.z <= epsilon || isect->t < p_curr.z) {
-					tree++;
-					level = tree & -tree;
-					continue;
-				}
-
-				t = p_curr.z;
-
-				/* stochastic fade from minimum width */
-				if(difl != 0.0f && lcg_state) {
-					if(coverage != 1.0f && (lcg_step_float(lcg_state) > coverage))
-						return hit;
-				}
-			}
-			else {
-				float l = len(p_en - p_st);
-				/* minimum width extension */
-				float or1 = r1;
-				float or2 = r2;
-
-				if(difl != 0.0f) {
-					mw_extension = min(len(p_st - P) * difl, extmax);
-					or1 = r1 < mw_extension ? mw_extension : r1;
-					mw_extension = min(len(p_en - P) * difl, extmax);
-					or2 = r2 < mw_extension ? mw_extension : r2;
-				}
-				/* --- */
-				float invl = 1.0f/l;
-				float3 tg = (p_en - p_st) * invl;
-				gd = (or2 - or1) * invl;
-				float difz = -dot(p_st,tg);
-				float cyla = 1.0f - (tg.z * tg.z * (1 + gd*gd));
-				float invcyla = 1.0f/cyla;
-				float halfb = (-p_st.z - tg.z*(difz + gd*(difz*gd + or1)));
-				float tcentre = -halfb*invcyla;
-				float zcentre = difz + (tg.z * tcentre);
-				float3 tdif = - p_st;
-				tdif.z += tcentre;
-				float tdifz = dot(tdif,tg);
-				float tb = 2*(tdif.z - tg.z*(tdifz + gd*(tdifz*gd + or1)));
-				float tc = dot(tdif,tdif) - tdifz * tdifz * (1 + gd*gd) - or1*or1 - 2*or1*tdifz*gd;
-				float td = tb*tb - 4*cyla*tc;
-				if(td < 0.0f) {
-					tree++;
-					level = tree & -tree;
-					continue;
-				}
-				
-				float rootd = sqrtf(td);
-				float correction = (-tb - rootd) * 0.5f * invcyla;
-				t = tcentre + correction;
-
-				float3 dp_st = (3 * curve_coef[3] * i_st + 2 * curve_coef[2]) * i_st + curve_coef[1];
-				if(dot(tg, dp_st)< 0)
-					dp_st *= -1;
-				float3 dp_en = (3 * curve_coef[3] * i_en + 2 * curve_coef[2]) * i_en + curve_coef[1];
-				if(dot(tg, dp_en) < 0)
-					dp_en *= -1;
-
-				if(flags & CURVE_KN_BACKFACING && (dot(dp_st, -p_st) + t * dp_st.z < 0 || dot(dp_en, p_en) - t * dp_en.z < 0 || isect->t < t || t <= 0.0f)) {
-					correction = (-tb + rootd) * 0.5f * invcyla;
-					t = tcentre + correction;
-				}			
-
-				if(dot(dp_st, -p_st) + t * dp_st.z < 0 || dot(dp_en, p_en) - t * dp_en.z < 0 || isect->t < t || t <= 0.0f) {
-					tree++;
-					level = tree & -tree;
-					continue;
-				}
-
-				float w = (zcentre + (tg.z * correction)) * invl;
-				w = saturate(w);
-				/* compute u on the curve segment */
-				u = i_st * (1 - w) + i_en * w;
-
-				/* stochastic fade from minimum width */
-				if(difl != 0.0f && lcg_state) {
-					r_curr = r1 + (r2 - r1) * w;
-					r_ext = or1 + (or2 - or1) * w;
-					coverage = r_curr/r_ext;
-
-					if(coverage != 1.0f && (lcg_step_float(lcg_state) > coverage))
-						return hit;
-				}
-			}
-			/* we found a new intersection */
-
-#ifdef __VISIBILITY_FLAG__
-			/* visibility flag test. we do it here under the assumption
-			 * that most triangles are culled by node flags */
-			if(kernel_tex_fetch(__prim_visibility, curveAddr) & visibility)
-#endif
-			{
-				/* record intersection */
-				isect->t = t;
-				isect->u = u;
-				isect->v = gd;
-				isect->prim = curveAddr;
-				isect->object = object;
-				isect->type = type;
-				hit = true;
-			}
-			
-			tree++;
-			level = tree & -tree;
-		}
-		else {
-			/* split the curve into two curves and process */
-			level = level >> 1;
-		}
-	}
-
-	return hit;
-}
-
-ccl_device_curveintersect bool bvh_curve_intersect(KernelGlobals *kg, Intersection *isect,
-	float3 P, float3 direction, uint visibility, int object, int curveAddr, float time, int type, uint *lcg_state, float difl, float extmax)
-{
-	/* define few macros to minimize code duplication for SSE */
-#ifndef __KERNEL_SSE2__
-#  define len3_squared(x) len_squared(x)
-#  define len3(x) len(x)
-#  define dot3(x, y) dot(x, y)
-#endif
-
-	const bool is_curve_primitive = (type & PRIMITIVE_CURVE);
-
-	if(!is_curve_primitive && kernel_data.bvh.use_bvh_steps) {
-		const float2 prim_time = kernel_tex_fetch(__prim_time, curveAddr);
-		if(time < prim_time.x || time > prim_time.y) {
-			return false;
-		}
-	}
-
-	int segment = PRIMITIVE_UNPACK_SEGMENT(type);
-	/* curve Intersection check */
-	int flags = kernel_data.curve.curveflags;
-
-	int prim = kernel_tex_fetch(__prim_index, curveAddr);
-	float4 v00 = kernel_tex_fetch(__curves, prim);
-
-	int cnum = __float_as_int(v00.x);
-	int k0 = cnum + segment;
-	int k1 = k0 + 1;
-
-#ifndef __KERNEL_SSE2__
-	float4 P_curve[2];
-
-	if(is_curve_primitive) {
-		P_curve[0] = kernel_tex_fetch(__curve_keys, k0);
-		P_curve[1] = kernel_tex_fetch(__curve_keys, k1);
-	}
-	else {
-		int fobject = (object == OBJECT_NONE)? kernel_tex_fetch(__prim_object, curveAddr): object;
-		motion_curve_keys(kg, fobject, prim, time, k0, k1, P_curve);
-	}
-
-	float or1 = P_curve[0].w;
-	float or2 = P_curve[1].w;
-	float3 p1 = float4_to_float3(P_curve[0]);
-	float3 p2 = float4_to_float3(P_curve[1]);
-
-	/* minimum width extension */
-	float r1 = or1;
-	float r2 = or2;
-	float3 dif = P - p1;
-	float3 dif_second = P - p2;
-	if(difl != 0.0f) {
-		float pixelsize = min(len3(dif) * difl, extmax);
-		r1 = or1 < pixelsize ? pixelsize : or1;
-		pixelsize = min(len3(dif_second) * difl, extmax);
-		r2 = or2 < pixelsize ? pixelsize : or2;
-	}
-	/* --- */
-
-	float3 p21_diff = p2 - p1;
-	float3 sphere_dif1 = (dif + dif_second) * 0.5f;
-	float3 dir = direction;
-	float sphere_b_tmp = dot3(dir, sphere_dif1);
-	float3 sphere_dif2 = sphere_dif1 - sphere_b_tmp * dir;
-#else
-	ssef P_curve[2];
-	
-	if(is_curve_primitive) {
-		P_curve[0] = load4f(&kg->__curve_keys.data[k0].x);
-		P_curve[1] = load4f(&kg->__curve_keys.data[k1].x);
-	}
-	else {
-		int fobject = (object == OBJECT_NONE)? kernel_tex_fetch(__prim_object, curveAddr): object;
-		motion_curve_keys(kg, fobject, prim, time, k0, k1, (float4*)&P_curve);
-	}
-
-	const ssef or12 = shuffle<3, 3, 3, 3>(P_curve[0], P_curve[1]);
-
-	ssef r12 = or12;
-	const ssef vP = load4f(P);
-	const ssef dif = vP - P_curve[0];
-	const ssef dif_second = vP - P_curve[1];
-	if(difl != 0.0f) {
-		const ssef len1_sq = len3_squared_splat(dif);
-		const ssef len2_sq = len3_squared_splat(dif_second);
-		const ssef len12 = mm_sqrt(shuffle<0, 0, 0, 0>(len1_sq, len2_sq));
-		const ssef pixelsize12 = min(len12 * difl, ssef(extmax));
-		r12 = max(or12, pixelsize12);
-	}
-	float or1 = extract<0>(or12), or2 = extract<0>(shuffle<2>(or12));
-	float r1 = extract<0>(r12), r2 = extract<0>(shuffle<2>(r12));
-
-	const ssef p21_diff = P_curve[1] - P_curve[0];
-	const ssef sphere_dif1 = (dif + dif_second) * 0.5f;
-	const ssef dir = load4f(direction);
-	const ssef sphere_b_tmp = dot3_splat(dir, sphere_dif1);
-	const ssef sphere_dif2 = nmadd(sphere_b_tmp, dir, sphere_dif1);
-#endif
-
-	float mr = max(r1, r2);
-	float l = len3(p21_diff);
-	float invl = 1.0f / l;
-	float sp_r = mr + 0.5f * l;
-
-	float sphere_b = dot3(dir, sphere_dif2);
-	float sdisc = sphere_b * sphere_b - len3_squared(sphere_dif2) + sp_r * sp_r;
-
-	if(sdisc < 0.0f)
-		return false;
-
-	/* obtain parameters and test midpoint distance for suitable modes */
-#ifndef __KERNEL_SSE2__
-	float3 tg = p21_diff * invl;
-#else
-	const ssef tg = p21_diff * invl;
-#endif
-	float gd = (r2 - r1) * invl;
-
-	float dirz = dot3(dir, tg);
-	float difz = dot3(dif, tg);
-
-	float a = 1.0f - (dirz*dirz*(1 + gd*gd));
-
-	float halfb = dot3(dir, dif) - dirz*(difz + gd*(difz*gd + r1));
-
-	float tcentre = -halfb/a;
-	float zcentre = difz + (dirz * tcentre);
-
-	if((tcentre > isect->t) && !(flags & CURVE_KN_ACCURATE))
-		return false;
-	if((zcentre < 0 || zcentre > l) && !(flags & CURVE_KN_ACCURATE) && !(flags & CURVE_KN_INTERSECTCORRECTION))
-		return false;
-
-	/* test minimum separation */
-#ifndef __KERNEL_SSE2__
-	float3 cprod = cross(tg, dir);
-	float cprod2sq = len3_squared(cross(tg, dif));
-#else
-	const ssef cprod = cross(tg, dir);
-	float cprod2sq = len3_squared(cross_zxy(tg, dif));
-#endif
-	float cprodsq = len3_squared(cprod);
-	float distscaled = dot3(cprod, dif);
-
-	if(cprodsq == 0)
-		distscaled = cprod2sq;
-	else
-		distscaled = (distscaled*distscaled)/cprodsq;
-
-	if(distscaled > mr*mr)
-		return false;
-
-	/* calculate true intersection */
-#ifndef __KERNEL_SSE2__
-	float3 tdif = dif + tcentre * dir;
-#else
-	const ssef tdif = madd(ssef(tcentre), dir, dif);
-#endif
-	float tdifz = dot3(tdif, tg);
-	float tdifma = tdifz*gd + r1;
-	float tb = 2*(dot3(dir, tdif) - dirz*(tdifz + gd*tdifma));
-	float tc = dot3(tdif, tdif) - tdifz*tdifz - tdifma*tdifma;
-	float td = tb*tb - 4*a*tc;
-
-	if(td < 0.0f)
-		return false;
-
-	float rootd = 0.0f;
-	float correction = 0.0f;
-	if(flags & CURVE_KN_ACCURATE) {
-		rootd = sqrtf(td);
-		correction = ((-tb - rootd)/(2*a));
-	}
-
-	float t = tcentre + correction;
-
-	if(t < isect->t) {
-
-		if(flags & CURVE_KN_INTERSECTCORRECTION) {
-			rootd = sqrtf(td);
-			correction = ((-tb - rootd)/(2*a));
-			t = tcentre + correction;
-		}
-
-		float z = zcentre + (dirz * correction);
-		// bool backface = false;
-
-		if(flags & CURVE_KN_BACKFACING && (t < 0.0f || z < 0 || z > l)) {
-			// backface = true;
-			correction = ((-tb + rootd)/(2*a));
-			t = tcentre + correction;
-			z = zcentre + (dirz * correction);
-		}
-
-		/* stochastic fade from minimum width */
-		float adjradius = or1 + z * (or2 - or1) * invl;
-		adjradius = adjradius / (r1 + z * gd);
-		if(lcg_state && adjradius != 1.0f) {
-			if(lcg_step_float(lcg_state) > adjradius)
-				return false;
-		}
-		/* --- */
-
-		if(t > 0.0f && t < isect->t && z >= 0 && z <= l) {
-
-			if(flags & CURVE_KN_ENCLOSEFILTER) {
-				float enc_ratio = 1.01f;
-				if((difz > -r1 * enc_ratio) && (dot3(dif_second, tg) < r2 * enc_ratio)) {
-					float a2 = 1.0f - (dirz*dirz*(1 + gd*gd*enc_ratio*enc_ratio));
-					float c2 = dot3(dif, dif) - difz * difz * (1 + gd*gd*enc_ratio*enc_ratio) - r1*r1*enc_ratio*enc_ratio - 2*r1*difz*gd*enc_ratio;
-					if(a2*c2 < 0.0f)
-						return false;
-				}
-			}
-
-#ifdef __VISIBILITY_FLAG__
-			/* visibility flag test. we do it here under the assumption
-			 * that most triangles are culled by node flags */
-			if(kernel_tex_fetch(__prim_visibility, curveAddr) & visibility)
-#endif
-			{
-				/* record intersection */
-				isect->t = t;
-				isect->u = z*invl;
-				isect->v = gd;
-				isect->prim = curveAddr;
-				isect->object = object;
-				isect->type = type;
-
-				return true;
-			}
-		}
-	}
-
-	return false;
-
-#ifndef __KERNEL_SSE2__
-#  undef len3_squared
-#  undef len3
-#  undef dot3
-#endif
-}
-
-ccl_device_inline float3 curvetangent(float t, float3 p0, float3 p1, float3 p2, float3 p3)
-{
-	float fc = 0.71f;
-	float data[4];
-	float t2 = t * t;
-	data[0] = -3.0f * fc          * t2  + 4.0f * fc * t                  - fc;
-	data[1] =  3.0f * (2.0f - fc) * t2  + 2.0f * (fc - 3.0f) * t;
-	data[2] =  3.0f * (fc - 2.0f) * t2  + 2.0f * (3.0f - 2.0f * fc) * t  + fc;
-	data[3] =  3.0f * fc          * t2  - 2.0f * fc * t;
-	return data[0] * p0 + data[1] * p1 + data[2] * p2 + data[3] * p3;
-}
-
-ccl_device_inline float3 curvepoint(float t, float3 p0, float3 p1, float3 p2, float3 p3)
-{
-	float data[4];
-	float fc = 0.71f;
-	float t2 = t * t;
-	float t3 = t2 * t;
-	data[0] = -fc          * t3  + 2.0f * fc          * t2 - fc * t;
-	data[1] =  (2.0f - fc) * t3  + (fc - 3.0f)        * t2 + 1.0f;
-	data[2] =  (fc - 2.0f) * t3  + (3.0f - 2.0f * fc) * t2 + fc * t;
-	data[3] =  fc          * t3  - fc * t2;
-	return data[0] * p0 + data[1] * p1 + data[2] * p2 + data[3] * p3;
-}
-
-ccl_device_inline float3 bvh_curve_refine(KernelGlobals *kg, ShaderData *sd, const Intersection *isect, const Ray *ray)
-{
-	int flag = kernel_data.curve.curveflags;
-	float t = isect->t;
-	float3 P = ray->P;
-	float3 D = ray->D;
-
-	if(isect->object != OBJECT_NONE) {
-#ifdef __OBJECT_MOTION__
-		Transform tfm = sd->ob_itfm;
-#else
-		Transform tfm = object_fetch_transform(kg, isect->object, OBJECT_INVERSE_TRANSFORM);
-#endif
-
-		P = transform_point(&tfm, P);
-		D = transform_direction(&tfm, D*t);
-		D = normalize_len(D, &t);
-	}
-
-	int prim = kernel_tex_fetch(__prim_index, isect->prim);
-	float4 v00 = kernel_tex_fetch(__curves, prim);
-
-	int k0 = __float_as_int(v00.x) + PRIMITIVE_UNPACK_SEGMENT(sd->type);
-	int k1 = k0 + 1;
-
-	float3 tg;
-
-	if(flag & CURVE_KN_INTERPOLATE) {
-		int ka = max(k0 - 1,__float_as_int(v00.x));
-		int kb = min(k1 + 1,__float_as_int(v00.x) + __float_as_int(v00.y) - 1);
-
-		float4 P_curve[4];
-
-		if(sd->type & PRIMITIVE_CURVE) {
-			P_curve[0] = kernel_tex_fetch(__curve_keys, ka);
-			P_curve[1] = kernel_tex_fetch(__curve_keys, k0);
-			P_curve[2] = kernel_tex_fetch(__curve_keys, k1);
-			P_curve[3] = kernel_tex_fetch(__curve_keys, kb);
-		}
-		else {
-			motion_cardinal_curve_keys(kg, sd->object, sd->prim, sd->time, ka, k0, k1, kb, P_curve);
-		}
-
-		float3 p[4];
-		p[0] = float4_to_float3(P_curve[0]);
-		p[1] = float4_to_float3(P_curve[1]);
-		p[2] = float4_to_float3(P_curve[2]);
-		p[3] = float4_to_float3(P_curve[3]);
-
-		P = P + D*t;
-
-#ifdef __UV__
-		sd->u = isect->u;
-		sd->v = 0.0f;
-#endif
-
-		tg = normalize(curvetangent(isect->u, p[0], p[1], p[2], p[3]));
-
-		if(kernel_data.curve.curveflags & CURVE_KN_RIBBONS) {
-			sd->Ng = normalize(-(D - tg * (dot(tg, D))));
-		}
-		else {
-			/* direction from inside to surface of curve */
-			float3 p_curr = curvepoint(isect->u, p[0], p[1], p[2], p[3]);	
-			sd->Ng = normalize(P - p_curr);
-
-			/* adjustment for changing radius */
-			float gd = isect->v;
-
-			if(gd != 0.0f) {
-				sd->Ng = sd->Ng - gd * tg;
-				sd->Ng = normalize(sd->Ng);
-			}
-		}
-
-		/* todo: sometimes the normal is still so that this is detected as
-		 * backfacing even if cull backfaces is enabled */
-
-		sd->N = sd->Ng;
-	}
-	else {
-		float4 P_curve[2];
-
-		if(sd->type & PRIMITIVE_CURVE) {
-			P_curve[0]= kernel_tex_fetch(__curve_keys, k0);
-			P_curve[1]= kernel_tex_fetch(__curve_keys, k1);
-		}
-		else {
-			motion_curve_keys(kg, sd->object, sd->prim, sd->time, k0, k1, P_curve);
-		}
-
-		float l = 1.0f;
-		tg = normalize_len(float4_to_float3(P_curve[1] - P_curve[0]), &l);
-		
-		P = P + D*t;
-
-		float3 dif = P - float4_to_float3(P_curve[0]);
-
-#ifdef __UV__
-		sd->u = dot(dif,tg)/l;
-		sd->v = 0.0f;
-#endif
-
-		if(flag & CURVE_KN_TRUETANGENTGNORMAL) {
-			sd->Ng = -(D - tg * dot(tg, D));
-			sd->Ng = normalize(sd->Ng);
-		}
-		else {
-			float gd = isect->v;
-
-			/* direction from inside to surface of curve */
-			sd->Ng = (dif - tg * sd->u * l) / (P_curve[0].w + sd->u * l * gd);
-
-			/* adjustment for changing radius */
-			if(gd != 0.0f) {
-				sd->Ng = sd->Ng - gd * tg;
-				sd->Ng = normalize(sd->Ng);
-			}
-		}
-
-		sd->N = sd->Ng;
-	}
-
-#ifdef __DPDU__
-	/* dPdu/dPdv */
-	sd->dPdu = tg;
-	sd->dPdv = cross(tg, sd->Ng);
-#endif
-
-	if(isect->object != OBJECT_NONE) {
-#ifdef __OBJECT_MOTION__
-		Transform tfm = sd->ob_tfm;
-#else
-		Transform tfm = object_fetch_transform(kg, isect->object, OBJECT_TRANSFORM);
-#endif
-
-		P = transform_point(&tfm, P);
-	}
-
-	return P;
-}
-
-#endif
+#endif  /* __HAIR__ */
 
 CCL_NAMESPACE_END
-
diff --git a/intern/cycles/kernel/geom/geom_curve_intersect.h b/intern/cycles/kernel/geom/geom_curve_intersect.h
new file mode 100644
index 00000000000..e9a149ea1ab
--- /dev/null
+++ b/intern/cycles/kernel/geom/geom_curve_intersect.h
@@ -0,0 +1,934 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+CCL_NAMESPACE_BEGIN
+
+/* Curve primitive intersection functions. */
+
+#ifdef __HAIR__
+
+#if defined(__KERNEL_CUDA__) && (__CUDA_ARCH__ < 300)
+#  define ccl_device_curveintersect ccl_device
+#else
+#  define ccl_device_curveintersect ccl_device_forceinline
+#endif
+
+#ifdef __KERNEL_SSE2__
+ccl_device_inline ssef transform_point_T3(const ssef t[3], const ssef &a)
+{
+	return madd(shuffle<0>(a), t[0], madd(shuffle<1>(a), t[1], shuffle<2>(a) * t[2]));
+}
+#endif
+
+/* On CPU pass P and dir by reference to aligned vector. */
+ccl_device_curveintersect bool cardinal_curve_intersect(
+        KernelGlobals *kg,
+        Intersection *isect,
+        const float3 ccl_ref P,
+        const float3 ccl_ref dir,
+        uint visibility,
+        int object,
+        int curveAddr,
+        float time,
+        int type,
+        uint *lcg_state,
+        float difl,
+        float extmax)
+{
+	const bool is_curve_primitive = (type & PRIMITIVE_CURVE);
+
+	if(!is_curve_primitive && kernel_data.bvh.use_bvh_steps) {
+		const float2 prim_time = kernel_tex_fetch(__prim_time, curveAddr);
+		if(time < prim_time.x || time > prim_time.y) {
+			return false;
+		}
+	}
+
+	int segment = PRIMITIVE_UNPACK_SEGMENT(type);
+	float epsilon = 0.0f;
+	float r_st, r_en;
+
+	int depth = kernel_data.curve.subdivisions;
+	int flags = kernel_data.curve.curveflags;
+	int prim = kernel_tex_fetch(__prim_index, curveAddr);
+
+#ifdef __KERNEL_SSE2__
+	ssef vdir = load4f(dir);
+	ssef vcurve_coef[4];
+	const float3 *curve_coef = (float3 *)vcurve_coef;
+
+	{
+		ssef dtmp = vdir * vdir;
+		ssef d_ss = mm_sqrt(dtmp + shuffle<2>(dtmp));
+		ssef rd_ss = load1f_first(1.0f) / d_ss;
+
+		ssei v00vec = load4i((ssei *)&kg->__curves.data[prim]);
+		int2 &v00 = (int2 &)v00vec;
+
+		int k0 = v00.x + segment;
+		int k1 = k0 + 1;
+		int ka = max(k0 - 1, v00.x);
+		int kb = min(k1 + 1, v00.x + v00.y - 1);
+
+#if defined(__KERNEL_AVX2__) && defined(__KERNEL_SSE__) && (!defined(_MSC_VER) || _MSC_VER > 1800)
+		avxf P_curve_0_1, P_curve_2_3;
+		if(is_curve_primitive) {
+			P_curve_0_1 = _mm256_loadu2_m128(&kg->__curve_keys.data[k0].x, &kg->__curve_keys.data[ka].x);
+			P_curve_2_3 = _mm256_loadu2_m128(&kg->__curve_keys.data[kb].x, &kg->__curve_keys.data[k1].x);
+		}
+		else {
+			int fobject = (object == OBJECT_NONE) ? kernel_tex_fetch(__prim_object, curveAddr) : object;
+			motion_cardinal_curve_keys_avx(kg, fobject, prim, time, ka, k0, k1, kb, &P_curve_0_1,&P_curve_2_3);
+		}
+#else  /* __KERNEL_AVX2__ */
+		ssef P_curve[4];
+
+		if(is_curve_primitive) {
+			P_curve[0] = load4f(&kg->__curve_keys.data[ka].x);
+			P_curve[1] = load4f(&kg->__curve_keys.data[k0].x);
+			P_curve[2] = load4f(&kg->__curve_keys.data[k1].x);
+			P_curve[3] = load4f(&kg->__curve_keys.data[kb].x);
+		}
+		else {
+			int fobject = (object == OBJECT_NONE)? kernel_tex_fetch(__prim_object, curveAddr): object;
+			motion_cardinal_curve_keys(kg, fobject, prim, time, ka, k0, k1, kb, (float4*)&P_curve);
+		}
+#endif  /* __KERNEL_AVX2__ */
+
+		ssef rd_sgn = set_sign_bit<0, 1, 1, 1>(shuffle<0>(rd_ss));
+		ssef mul_zxxy = shuffle<2, 0, 0, 1>(vdir) * rd_sgn;
+		ssef mul_yz = shuffle<1, 2, 1, 2>(vdir) * mul_zxxy;
+		ssef mul_shuf = shuffle<0, 1, 2, 3>(mul_zxxy, mul_yz);
+		ssef vdir0 = vdir & cast(ssei(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0));
+
+		ssef htfm0 = shuffle<0, 2, 0, 3>(mul_shuf, vdir0);
+		ssef htfm1 = shuffle<1, 0, 1, 3>(load1f_first(extract<0>(d_ss)), vdir0);
+		ssef htfm2 = shuffle<1, 3, 2, 3>(mul_shuf, vdir0);
+
+#if defined(__KERNEL_AVX2__) && defined(__KERNEL_SSE__) && (!defined(_MSC_VER) || _MSC_VER > 1800)
+		const avxf vPP = _mm256_broadcast_ps(&P.m128);
+		const avxf htfm00 = avxf(htfm0.m128, htfm0.m128);
+		const avxf htfm11 = avxf(htfm1.m128, htfm1.m128);
+		const avxf htfm22 = avxf(htfm2.m128, htfm2.m128);
+
+		const avxf p01 = madd(shuffle<0>(P_curve_0_1 - vPP),
+		                      htfm00,
+		                      madd(shuffle<1>(P_curve_0_1 - vPP),
+		                           htfm11,
+		                           shuffle<2>(P_curve_0_1 - vPP) * htfm22));
+		const avxf p23 = madd(shuffle<0>(P_curve_2_3 - vPP),
+		                      htfm00,
+		                      madd(shuffle<1>(P_curve_2_3 - vPP),
+		                           htfm11,
+		                           shuffle<2>(P_curve_2_3 - vPP)*htfm22));
+
+		const ssef p0 = _mm256_castps256_ps128(p01);
+		const ssef p1 = _mm256_extractf128_ps(p01, 1);
+		const ssef p2 = _mm256_castps256_ps128(p23);
+		const ssef p3 = _mm256_extractf128_ps(p23, 1);
+
+		const ssef P_curve_1 = _mm256_extractf128_ps(P_curve_0_1, 1);
+		r_st = ((float4 &)P_curve_1).w;
+		const ssef P_curve_2 = _mm256_castps256_ps128(P_curve_2_3);
+		r_en = ((float4 &)P_curve_2).w;
+#else  /* __KERNEL_AVX2__ */
+		ssef htfm[] = { htfm0, htfm1, htfm2 };
+		ssef vP = load4f(P);
+		ssef p0 = transform_point_T3(htfm, P_curve[0] - vP);
+		ssef p1 = transform_point_T3(htfm, P_curve[1] - vP);
+		ssef p2 = transform_point_T3(htfm, P_curve[2] - vP);
+		ssef p3 = transform_point_T3(htfm, P_curve[3] - vP);
+
+		r_st = ((float4 &)P_curve[1]).w;
+		r_en = ((float4 &)P_curve[2]).w;
+#endif  /* __KERNEL_AVX2__ */
+
+		float fc = 0.71f;
+		ssef vfc = ssef(fc);
+		ssef vfcxp3 = vfc * p3;
+
+		vcurve_coef[0] = p1;
+		vcurve_coef[1] = vfc * (p2 - p0);
+		vcurve_coef[2] = madd(ssef(fc * 2.0f), p0, madd(ssef(fc - 3.0f), p1, msub(ssef(3.0f - 2.0f * fc), p2, vfcxp3)));
+		vcurve_coef[3] = msub(ssef(fc - 2.0f), p2 - p1, msub(vfc, p0, vfcxp3));
+
+	}
+#else
+	float3 curve_coef[4];
+
+	/* curve Intersection check */
+	/* obtain curve parameters */
+	{
+		/* ray transform created - this should be created at beginning of intersection loop */
+		Transform htfm;
+		float d = sqrtf(dir.x * dir.x + dir.z * dir.z);
+		htfm = make_transform(
+			dir.z / d, 0, -dir.x /d, 0,
+			-dir.x * dir.y /d, d, -dir.y * dir.z /d, 0,
+			dir.x, dir.y, dir.z, 0,
+			0, 0, 0, 1);
+
+		float4 v00 = kernel_tex_fetch(__curves, prim);
+
+		int k0 = __float_as_int(v00.x) + segment;
+		int k1 = k0 + 1;
+
+		int ka = max(k0 - 1,__float_as_int(v00.x));
+		int kb = min(k1 + 1,__float_as_int(v00.x) + __float_as_int(v00.y) - 1);
+
+		float4 P_curve[4];
+
+		if(is_curve_primitive) {
+			P_curve[0] = kernel_tex_fetch(__curve_keys, ka);
+			P_curve[1] = kernel_tex_fetch(__curve_keys, k0);
+			P_curve[2] = kernel_tex_fetch(__curve_keys, k1);
+			P_curve[3] = kernel_tex_fetch(__curve_keys, kb);
+		}
+		else {
+			int fobject = (object == OBJECT_NONE)? kernel_tex_fetch(__prim_object, curveAddr): object;
+			motion_cardinal_curve_keys(kg, fobject, prim, time, ka, k0, k1, kb, P_curve);
+		}
+
+		float3 p0 = transform_point(&htfm, float4_to_float3(P_curve[0]) - P);
+		float3 p1 = transform_point(&htfm, float4_to_float3(P_curve[1]) - P);
+		float3 p2 = transform_point(&htfm, float4_to_float3(P_curve[2]) - P);
+		float3 p3 = transform_point(&htfm, float4_to_float3(P_curve[3]) - P);
+
+		float fc = 0.71f;
+		curve_coef[0] = p1;
+		curve_coef[1] = -fc*p0 + fc*p2;
+		curve_coef[2] = 2.0f * fc * p0 + (fc - 3.0f) * p1 + (3.0f - 2.0f * fc) * p2 - fc * p3;
+		curve_coef[3] = -fc * p0 + (2.0f - fc) * p1 + (fc - 2.0f) * p2 + fc * p3;
+		r_st = P_curve[1].w;
+		r_en = P_curve[2].w;
+	}
+#endif
+
+	float r_curr = max(r_st, r_en);
+
+	if((flags & CURVE_KN_RIBBONS) || !(flags & CURVE_KN_BACKFACING))
+		epsilon = 2 * r_curr;
+
+	/* find bounds - this is slow for cubic curves */
+	float upper, lower;
+
+	float zextrem[4];
+	curvebounds(&lower, &upper, &zextrem[0], &zextrem[1], &zextrem[2], &zextrem[3], curve_coef[0].z, curve_coef[1].z, curve_coef[2].z, curve_coef[3].z);
+	if(lower - r_curr > isect->t || upper + r_curr < epsilon)
+		return false;
+
+	/* minimum width extension */
+	float mw_extension = min(difl * fabsf(upper), extmax);
+	float r_ext = mw_extension + r_curr;
+
+	float xextrem[4];
+	curvebounds(&lower, &upper, &xextrem[0], &xextrem[1], &xextrem[2], &xextrem[3], curve_coef[0].x, curve_coef[1].x, curve_coef[2].x, curve_coef[3].x);
+	if(lower > r_ext || upper < -r_ext)
+		return false;
+
+	float yextrem[4];
+	curvebounds(&lower, &upper, &yextrem[0], &yextrem[1], &yextrem[2], &yextrem[3], curve_coef[0].y, curve_coef[1].y, curve_coef[2].y, curve_coef[3].y);
+	if(lower > r_ext || upper < -r_ext)
+		return false;
+
+	/* setup recurrent loop */
+	int level = 1 << depth;
+	int tree = 0;
+	float resol = 1.0f / (float)level;
+	bool hit = false;
+
+	/* begin loop */
+	while(!(tree >> (depth))) {
+		const float i_st = tree * resol;
+		const float i_en = i_st + (level * resol);
+
+#ifdef __KERNEL_SSE2__
+		ssef vi_st = ssef(i_st), vi_en = ssef(i_en);
+		ssef vp_st = madd(madd(madd(vcurve_coef[3], vi_st, vcurve_coef[2]), vi_st, vcurve_coef[1]), vi_st, vcurve_coef[0]);
+		ssef vp_en = madd(madd(madd(vcurve_coef[3], vi_en, vcurve_coef[2]), vi_en, vcurve_coef[1]), vi_en, vcurve_coef[0]);
+
+		ssef vbmin = min(vp_st, vp_en);
+		ssef vbmax = max(vp_st, vp_en);
+
+		float3 &bmin = (float3 &)vbmin, &bmax = (float3 &)vbmax;
+		float &bminx = bmin.x, &bminy = bmin.y, &bminz = bmin.z;
+		float &bmaxx = bmax.x, &bmaxy = bmax.y, &bmaxz = bmax.z;
+		float3 &p_st = (float3 &)vp_st, &p_en = (float3 &)vp_en;
+#else
+		float3 p_st = ((curve_coef[3] * i_st + curve_coef[2]) * i_st + curve_coef[1]) * i_st + curve_coef[0];
+		float3 p_en = ((curve_coef[3] * i_en + curve_coef[2]) * i_en + curve_coef[1]) * i_en + curve_coef[0];
+
+		float bminx = min(p_st.x, p_en.x);
+		float bmaxx = max(p_st.x, p_en.x);
+		float bminy = min(p_st.y, p_en.y);
+		float bmaxy = max(p_st.y, p_en.y);
+		float bminz = min(p_st.z, p_en.z);
+		float bmaxz = max(p_st.z, p_en.z);
+#endif
+
+		if(xextrem[0] >= i_st && xextrem[0] <= i_en) {
+			bminx = min(bminx,xextrem[1]);
+			bmaxx = max(bmaxx,xextrem[1]);
+		}
+		if(xextrem[2] >= i_st && xextrem[2] <= i_en) {
+			bminx = min(bminx,xextrem[3]);
+			bmaxx = max(bmaxx,xextrem[3]);
+		}
+		if(yextrem[0] >= i_st && yextrem[0] <= i_en) {
+			bminy = min(bminy,yextrem[1]);
+			bmaxy = max(bmaxy,yextrem[1]);
+		}
+		if(yextrem[2] >= i_st && yextrem[2] <= i_en) {
+			bminy = min(bminy,yextrem[3]);
+			bmaxy = max(bmaxy,yextrem[3]);
+		}
+		if(zextrem[0] >= i_st && zextrem[0] <= i_en) {
+			bminz = min(bminz,zextrem[1]);
+			bmaxz = max(bmaxz,zextrem[1]);
+		}
+		if(zextrem[2] >= i_st && zextrem[2] <= i_en) {
+			bminz = min(bminz,zextrem[3]);
+			bmaxz = max(bmaxz,zextrem[3]);
+		}
+
+		float r1 = r_st + (r_en - r_st) * i_st;
+		float r2 = r_st + (r_en - r_st) * i_en;
+		r_curr = max(r1, r2);
+
+		mw_extension = min(difl * fabsf(bmaxz), extmax);
+		float r_ext = mw_extension + r_curr;
+		float coverage = 1.0f;
+
+		if(bminz - r_curr > isect->t || bmaxz + r_curr < epsilon || bminx > r_ext|| bmaxx < -r_ext|| bminy > r_ext|| bmaxy < -r_ext) {
+			/* the bounding box does not overlap the square centered at O */
+			tree += level;
+			level = tree & -tree;
+		}
+		else if(level == 1) {
+
+			/* the maximum recursion depth is reached.
+			 * check if dP0.(Q-P0)>=0 and dPn.(Pn-Q)>=0.
+			 * dP* is reversed if necessary.*/
+			float t = isect->t;
+			float u = 0.0f;
+			float gd = 0.0f;
+
+			if(flags & CURVE_KN_RIBBONS) {
+				float3 tg = (p_en - p_st);
+#ifdef __KERNEL_SSE__
+				const float3 tg_sq = tg * tg;
+				float w = tg_sq.x + tg_sq.y;
+#else
+				float w = tg.x * tg.x + tg.y * tg.y;
+#endif
+				if(w == 0) {
+					tree++;
+					level = tree & -tree;
+					continue;
+				}
+#ifdef __KERNEL_SSE__
+				const float3 p_sttg = p_st * tg;
+				w = -(p_sttg.x + p_sttg.y) / w;
+#else
+				w = -(p_st.x * tg.x + p_st.y * tg.y) / w;
+#endif
+				w = saturate(w);
+
+				/* compute u on the curve segment */
+				u = i_st * (1 - w) + i_en * w;
+				r_curr = r_st + (r_en - r_st) * u;
+				/* compare x-y distances */
+				float3 p_curr = ((curve_coef[3] * u + curve_coef[2]) * u + curve_coef[1]) * u + curve_coef[0];
+
+				float3 dp_st = (3 * curve_coef[3] * i_st + 2 * curve_coef[2]) * i_st + curve_coef[1];
+				if(dot(tg, dp_st)< 0)
+					dp_st *= -1;
+				if(dot(dp_st, -p_st) + p_curr.z * dp_st.z < 0) {
+					tree++;
+					level = tree & -tree;
+					continue;
+				}
+				float3 dp_en = (3 * curve_coef[3] * i_en + 2 * curve_coef[2]) * i_en + curve_coef[1];
+				if(dot(tg, dp_en) < 0)
+					dp_en *= -1;
+				if(dot(dp_en, p_en) - p_curr.z * dp_en.z < 0) {
+					tree++;
+					level = tree & -tree;
+					continue;
+				}
+
+				/* compute coverage */
+				float r_ext = r_curr;
+				coverage = 1.0f;
+				if(difl != 0.0f) {
+					mw_extension = min(difl * fabsf(bmaxz), extmax);
+					r_ext = mw_extension + r_curr;
+#ifdef __KERNEL_SSE__
+					const float3 p_curr_sq = p_curr * p_curr;
+					const float3 dxxx(_mm_sqrt_ss(_mm_hadd_ps(p_curr_sq.m128, p_curr_sq.m128)));
+					float d = dxxx.x;
+#else
+					float d = sqrtf(p_curr.x * p_curr.x + p_curr.y * p_curr.y);
+#endif
+					float d0 = d - r_curr;
+					float d1 = d + r_curr;
+					float inv_mw_extension = 1.0f/mw_extension;
+					if(d0 >= 0)
+						coverage = (min(d1 * inv_mw_extension, 1.0f) - min(d0 * inv_mw_extension, 1.0f)) * 0.5f;
+					else // inside
+						coverage = (min(d1 * inv_mw_extension, 1.0f) + min(-d0 * inv_mw_extension, 1.0f)) * 0.5f;
+				}
+
+				if(p_curr.x * p_curr.x + p_curr.y * p_curr.y >= r_ext * r_ext || p_curr.z <= epsilon || isect->t < p_curr.z) {
+					tree++;
+					level = tree & -tree;
+					continue;
+				}
+
+				t = p_curr.z;
+
+				/* stochastic fade from minimum width */
+				if(difl != 0.0f && lcg_state) {
+					if(coverage != 1.0f && (lcg_step_float(lcg_state) > coverage))
+						return hit;
+				}
+			}
+			else {
+				float l = len(p_en - p_st);
+				/* minimum width extension */
+				float or1 = r1;
+				float or2 = r2;
+
+				if(difl != 0.0f) {
+					mw_extension = min(len(p_st - P) * difl, extmax);
+					or1 = r1 < mw_extension ? mw_extension : r1;
+					mw_extension = min(len(p_en - P) * difl, extmax);
+					or2 = r2 < mw_extension ? mw_extension : r2;
+				}
+				/* --- */
+				float invl = 1.0f/l;
+				float3 tg = (p_en - p_st) * invl;
+				gd = (or2 - or1) * invl;
+				float difz = -dot(p_st,tg);
+				float cyla = 1.0f - (tg.z * tg.z * (1 + gd*gd));
+				float invcyla = 1.0f/cyla;
+				float halfb = (-p_st.z - tg.z*(difz + gd*(difz*gd + or1)));
+				float tcentre = -halfb*invcyla;
+				float zcentre = difz + (tg.z * tcentre);
+				float3 tdif = - p_st;
+				tdif.z += tcentre;
+				float tdifz = dot(tdif,tg);
+				float tb = 2*(tdif.z - tg.z*(tdifz + gd*(tdifz*gd + or1)));
+				float tc = dot(tdif,tdif) - tdifz * tdifz * (1 + gd*gd) - or1*or1 - 2*or1*tdifz*gd;
+				float td = tb*tb - 4*cyla*tc;
+				if(td < 0.0f) {
+					tree++;
+					level = tree & -tree;
+					continue;
+				}
+
+				float rootd = sqrtf(td);
+				float correction = (-tb - rootd) * 0.5f * invcyla;
+				t = tcentre + correction;
+
+				float3 dp_st = (3 * curve_coef[3] * i_st + 2 * curve_coef[2]) * i_st + curve_coef[1];
+				if(dot(tg, dp_st)< 0)
+					dp_st *= -1;
+				float3 dp_en = (3 * curve_coef[3] * i_en + 2 * curve_coef[2]) * i_en + curve_coef[1];
+				if(dot(tg, dp_en) < 0)
+					dp_en *= -1;
+
+				if(flags & CURVE_KN_BACKFACING && (dot(dp_st, -p_st) + t * dp_st.z < 0 || dot(dp_en, p_en) - t * dp_en.z < 0 || isect->t < t || t <= 0.0f)) {
+					correction = (-tb + rootd) * 0.5f * invcyla;
+					t = tcentre + correction;
+				}
+
+				if(dot(dp_st, -p_st) + t * dp_st.z < 0 || dot(dp_en, p_en) - t * dp_en.z < 0 || isect->t < t || t <= 0.0f) {
+					tree++;
+					level = tree & -tree;
+					continue;
+				}
+
+				float w = (zcentre + (tg.z * correction)) * invl;
+				w = saturate(w);
+				/* compute u on the curve segment */
+				u = i_st * (1 - w) + i_en * w;
+
+				/* stochastic fade from minimum width */
+				if(difl != 0.0f && lcg_state) {
+					r_curr = r1 + (r2 - r1) * w;
+					r_ext = or1 + (or2 - or1) * w;
+					coverage = r_curr/r_ext;
+
+					if(coverage != 1.0f && (lcg_step_float(lcg_state) > coverage))
+						return hit;
+				}
+			}
+			/* we found a new intersection */
+
+#ifdef __VISIBILITY_FLAG__
+			/* visibility flag test. we do it here under the assumption
+			 * that most triangles are culled by node flags */
+			if(kernel_tex_fetch(__prim_visibility, curveAddr) & visibility)
+#endif
+			{
+				/* record intersection */
+				isect->t = t;
+				isect->u = u;
+				isect->v = gd;
+				isect->prim = curveAddr;
+				isect->object = object;
+				isect->type = type;
+				hit = true;
+			}
+
+			tree++;
+			level = tree & -tree;
+		}
+		else {
+			/* split the curve into two curves and process */
+			level = level >> 1;
+		}
+	}
+
+	return hit;
+}
+
+ccl_device_curveintersect bool curve_intersect(KernelGlobals *kg,
+                                               Intersection *isect,
+                                               float3 P,
+                                               float3 direction,
+                                               uint visibility,
+                                               int object,
+                                               int curveAddr,
+                                               float time,
+                                               int type,
+                                               uint *lcg_state,
+                                               float difl,
+                                               float extmax)
+{
+	/* define few macros to minimize code duplication for SSE */
+#ifndef __KERNEL_SSE2__
+#  define len3_squared(x) len_squared(x)
+#  define len3(x) len(x)
+#  define dot3(x, y) dot(x, y)
+#endif
+
+	const bool is_curve_primitive = (type & PRIMITIVE_CURVE);
+
+	if(!is_curve_primitive && kernel_data.bvh.use_bvh_steps) {
+		const float2 prim_time = kernel_tex_fetch(__prim_time, curveAddr);
+		if(time < prim_time.x || time > prim_time.y) {
+			return false;
+		}
+	}
+
+	int segment = PRIMITIVE_UNPACK_SEGMENT(type);
+	/* curve Intersection check */
+	int flags = kernel_data.curve.curveflags;
+
+	int prim = kernel_tex_fetch(__prim_index, curveAddr);
+	float4 v00 = kernel_tex_fetch(__curves, prim);
+
+	int cnum = __float_as_int(v00.x);
+	int k0 = cnum + segment;
+	int k1 = k0 + 1;
+
+#ifndef __KERNEL_SSE2__
+	float4 P_curve[2];
+
+	if(is_curve_primitive) {
+		P_curve[0] = kernel_tex_fetch(__curve_keys, k0);
+		P_curve[1] = kernel_tex_fetch(__curve_keys, k1);
+	}
+	else {
+		int fobject = (object == OBJECT_NONE)? kernel_tex_fetch(__prim_object, curveAddr): object;
+		motion_curve_keys(kg, fobject, prim, time, k0, k1, P_curve);
+	}
+
+	float or1 = P_curve[0].w;
+	float or2 = P_curve[1].w;
+	float3 p1 = float4_to_float3(P_curve[0]);
+	float3 p2 = float4_to_float3(P_curve[1]);
+
+	/* minimum width extension */
+	float r1 = or1;
+	float r2 = or2;
+	float3 dif = P - p1;
+	float3 dif_second = P - p2;
+	if(difl != 0.0f) {
+		float pixelsize = min(len3(dif) * difl, extmax);
+		r1 = or1 < pixelsize ? pixelsize : or1;
+		pixelsize = min(len3(dif_second) * difl, extmax);
+		r2 = or2 < pixelsize ? pixelsize : or2;
+	}
+	/* --- */
+
+	float3 p21_diff = p2 - p1;
+	float3 sphere_dif1 = (dif + dif_second) * 0.5f;
+	float3 dir = direction;
+	float sphere_b_tmp = dot3(dir, sphere_dif1);
+	float3 sphere_dif2 = sphere_dif1 - sphere_b_tmp * dir;
+#else
+	ssef P_curve[2];
+
+	if(is_curve_primitive) {
+		P_curve[0] = load4f(&kg->__curve_keys.data[k0].x);
+		P_curve[1] = load4f(&kg->__curve_keys.data[k1].x);
+	}
+	else {
+		int fobject = (object == OBJECT_NONE)? kernel_tex_fetch(__prim_object, curveAddr): object;
+		motion_curve_keys(kg, fobject, prim, time, k0, k1, (float4*)&P_curve);
+	}
+
+	const ssef or12 = shuffle<3, 3, 3, 3>(P_curve[0], P_curve[1]);
+
+	ssef r12 = or12;
+	const ssef vP = load4f(P);
+	const ssef dif = vP - P_curve[0];
+	const ssef dif_second = vP - P_curve[1];
+	if(difl != 0.0f) {
+		const ssef len1_sq = len3_squared_splat(dif);
+		const ssef len2_sq = len3_squared_splat(dif_second);
+		const ssef len12 = mm_sqrt(shuffle<0, 0, 0, 0>(len1_sq, len2_sq));
+		const ssef pixelsize12 = min(len12 * difl, ssef(extmax));
+		r12 = max(or12, pixelsize12);
+	}
+	float or1 = extract<0>(or12), or2 = extract<0>(shuffle<2>(or12));
+	float r1 = extract<0>(r12), r2 = extract<0>(shuffle<2>(r12));
+
+	const ssef p21_diff = P_curve[1] - P_curve[0];
+	const ssef sphere_dif1 = (dif + dif_second) * 0.5f;
+	const ssef dir = load4f(direction);
+	const ssef sphere_b_tmp = dot3_splat(dir, sphere_dif1);
+	const ssef sphere_dif2 = nmadd(sphere_b_tmp, dir, sphere_dif1);
+#endif
+
+	float mr = max(r1, r2);
+	float l = len3(p21_diff);
+	float invl = 1.0f / l;
+	float sp_r = mr + 0.5f * l;
+
+	float sphere_b = dot3(dir, sphere_dif2);
+	float sdisc = sphere_b * sphere_b - len3_squared(sphere_dif2) + sp_r * sp_r;
+
+	if(sdisc < 0.0f)
+		return false;
+
+	/* obtain parameters and test midpoint distance for suitable modes */
+#ifndef __KERNEL_SSE2__
+	float3 tg = p21_diff * invl;
+#else
+	const ssef tg = p21_diff * invl;
+#endif
+	float gd = (r2 - r1) * invl;
+
+	float dirz = dot3(dir, tg);
+	float difz = dot3(dif, tg);
+
+	float a = 1.0f - (dirz*dirz*(1 + gd*gd));
+
+	float halfb = dot3(dir, dif) - dirz*(difz + gd*(difz*gd + r1));
+
+	float tcentre = -halfb/a;
+	float zcentre = difz + (dirz * tcentre);
+
+	if((tcentre > isect->t) && !(flags & CURVE_KN_ACCURATE))
+		return false;
+	if((zcentre < 0 || zcentre > l) && !(flags & CURVE_KN_ACCURATE) && !(flags & CURVE_KN_INTERSECTCORRECTION))
+		return false;
+
+	/* test minimum separation */
+#ifndef __KERNEL_SSE2__
+	float3 cprod = cross(tg, dir);
+	float cprod2sq = len3_squared(cross(tg, dif));
+#else
+	const ssef cprod = cross(tg, dir);
+	float cprod2sq = len3_squared(cross_zxy(tg, dif));
+#endif
+	float cprodsq = len3_squared(cprod);
+	float distscaled = dot3(cprod, dif);
+
+	if(cprodsq == 0)
+		distscaled = cprod2sq;
+	else
+		distscaled = (distscaled*distscaled)/cprodsq;
+
+	if(distscaled > mr*mr)
+		return false;
+
+	/* calculate true intersection */
+#ifndef __KERNEL_SSE2__
+	float3 tdif = dif + tcentre * dir;
+#else
+	const ssef tdif = madd(ssef(tcentre), dir, dif);
+#endif
+	float tdifz = dot3(tdif, tg);
+	float tdifma = tdifz*gd + r1;
+	float tb = 2*(dot3(dir, tdif) - dirz*(tdifz + gd*tdifma));
+	float tc = dot3(tdif, tdif) - tdifz*tdifz - tdifma*tdifma;
+	float td = tb*tb - 4*a*tc;
+
+	if(td < 0.0f)
+		return false;
+
+	float rootd = 0.0f;
+	float correction = 0.0f;
+	if(flags & CURVE_KN_ACCURATE) {
+		rootd = sqrtf(td);
+		correction = ((-tb - rootd)/(2*a));
+	}
+
+	float t = tcentre + correction;
+
+	if(t < isect->t) {
+
+		if(flags & CURVE_KN_INTERSECTCORRECTION) {
+			rootd = sqrtf(td);
+			correction = ((-tb - rootd)/(2*a));
+			t = tcentre + correction;
+		}
+
+		float z = zcentre + (dirz * correction);
+		// bool backface = false;
+
+		if(flags & CURVE_KN_BACKFACING && (t < 0.0f || z < 0 || z > l)) {
+			// backface = true;
+			correction = ((-tb + rootd)/(2*a));
+			t = tcentre + correction;
+			z = zcentre + (dirz * correction);
+		}
+
+		/* stochastic fade from minimum width */
+		float adjradius = or1 + z * (or2 - or1) * invl;
+		adjradius = adjradius / (r1 + z * gd);
+		if(lcg_state && adjradius != 1.0f) {
+			if(lcg_step_float(lcg_state) > adjradius)
+				return false;
+		}
+		/* --- */
+
+		if(t > 0.0f && t < isect->t && z >= 0 && z <= l) {
+
+			if(flags & CURVE_KN_ENCLOSEFILTER) {
+				float enc_ratio = 1.01f;
+				if((difz > -r1 * enc_ratio) && (dot3(dif_second, tg) < r2 * enc_ratio)) {
+					float a2 = 1.0f - (dirz*dirz*(1 + gd*gd*enc_ratio*enc_ratio));
+					float c2 = dot3(dif, dif) - difz * difz * (1 + gd*gd*enc_ratio*enc_ratio) - r1*r1*enc_ratio*enc_ratio - 2*r1*difz*gd*enc_ratio;
+					if(a2*c2 < 0.0f)
+						return false;
+				}
+			}
+
+#ifdef __VISIBILITY_FLAG__
+			/* visibility flag test. we do it here under the assumption
+			 * that most triangles are culled by node flags */
+			if(kernel_tex_fetch(__prim_visibility, curveAddr) & visibility)
+#endif
+			{
+				/* record intersection */
+				isect->t = t;
+				isect->u = z*invl;
+				isect->v = gd;
+				isect->prim = curveAddr;
+				isect->object = object;
+				isect->type = type;
+
+				return true;
+			}
+		}
+	}
+
+	return false;
+
+#ifndef __KERNEL_SSE2__
+#  undef len3_squared
+#  undef len3
+#  undef dot3
+#endif
+}
+
+ccl_device_inline float3 curvetangent(float t, float3 p0, float3 p1, float3 p2, float3 p3)
+{
+	float fc = 0.71f;
+	float data[4];
+	float t2 = t * t;
+	data[0] = -3.0f * fc          * t2  + 4.0f * fc * t                  - fc;
+	data[1] =  3.0f * (2.0f - fc) * t2  + 2.0f * (fc - 3.0f) * t;
+	data[2] =  3.0f * (fc - 2.0f) * t2  + 2.0f * (3.0f - 2.0f * fc) * t  + fc;
+	data[3] =  3.0f * fc          * t2  - 2.0f * fc * t;
+	return data[0] * p0 + data[1] * p1 + data[2] * p2 + data[3] * p3;
+}
+
+ccl_device_inline float3 curvepoint(float t, float3 p0, float3 p1, float3 p2, float3 p3)
+{
+	float data[4];
+	float fc = 0.71f;
+	float t2 = t * t;
+	float t3 = t2 * t;
+	data[0] = -fc          * t3  + 2.0f * fc          * t2 - fc * t;
+	data[1] =  (2.0f - fc) * t3  + (fc - 3.0f)        * t2 + 1.0f;
+	data[2] =  (fc - 2.0f) * t3  + (3.0f - 2.0f * fc) * t2 + fc * t;
+	data[3] =  fc          * t3  - fc * t2;
+	return data[0] * p0 + data[1] * p1 + data[2] * p2 + data[3] * p3;
+}
+
+ccl_device_inline float3 curve_refine(KernelGlobals *kg,
+                                      ShaderData *sd,
+                                      const Intersection *isect,
+                                      const Ray *ray)
+{
+	int flag = kernel_data.curve.curveflags;
+	float t = isect->t;
+	float3 P = ray->P;
+	float3 D = ray->D;
+
+	if(isect->object != OBJECT_NONE) {
+#ifdef __OBJECT_MOTION__
+		Transform tfm = sd->ob_itfm;
+#else
+		Transform tfm = object_fetch_transform(kg, isect->object, OBJECT_INVERSE_TRANSFORM);
+#endif
+
+		P = transform_point(&tfm, P);
+		D = transform_direction(&tfm, D*t);
+		D = normalize_len(D, &t);
+	}
+
+	int prim = kernel_tex_fetch(__prim_index, isect->prim);
+	float4 v00 = kernel_tex_fetch(__curves, prim);
+
+	int k0 = __float_as_int(v00.x) + PRIMITIVE_UNPACK_SEGMENT(sd->type);
+	int k1 = k0 + 1;
+
+	float3 tg;
+
+	if(flag & CURVE_KN_INTERPOLATE) {
+		int ka = max(k0 - 1,__float_as_int(v00.x));
+		int kb = min(k1 + 1,__float_as_int(v00.x) + __float_as_int(v00.y) - 1);
+
+		float4 P_curve[4];
+
+		if(sd->type & PRIMITIVE_CURVE) {
+			P_curve[0] = kernel_tex_fetch(__curve_keys, ka);
+			P_curve[1] = kernel_tex_fetch(__curve_keys, k0);
+			P_curve[2] = kernel_tex_fetch(__curve_keys, k1);
+			P_curve[3] = kernel_tex_fetch(__curve_keys, kb);
+		}
+		else {
+			motion_cardinal_curve_keys(kg, sd->object, sd->prim, sd->time, ka, k0, k1, kb, P_curve);
+		}
+
+		float3 p[4];
+		p[0] = float4_to_float3(P_curve[0]);
+		p[1] = float4_to_float3(P_curve[1]);
+		p[2] = float4_to_float3(P_curve[2]);
+		p[3] = float4_to_float3(P_curve[3]);
+
+		P = P + D*t;
+
+#ifdef __UV__
+		sd->u = isect->u;
+		sd->v = 0.0f;
+#endif
+
+		tg = normalize(curvetangent(isect->u, p[0], p[1], p[2], p[3]));
+
+		if(kernel_data.curve.curveflags & CURVE_KN_RIBBONS) {
+			sd->Ng = normalize(-(D - tg * (dot(tg, D))));
+		}
+		else {
+			/* direction from inside to surface of curve */
+			float3 p_curr = curvepoint(isect->u, p[0], p[1], p[2], p[3]);
+			sd->Ng = normalize(P - p_curr);
+
+			/* adjustment for changing radius */
+			float gd = isect->v;
+
+			if(gd != 0.0f) {
+				sd->Ng = sd->Ng - gd * tg;
+				sd->Ng = normalize(sd->Ng);
+			}
+		}
+
+		/* todo: sometimes the normal is still so that this is detected as
+		 * backfacing even if cull backfaces is enabled */
+
+		sd->N = sd->Ng;
+	}
+	else {
+		float4 P_curve[2];
+
+		if(sd->type & PRIMITIVE_CURVE) {
+			P_curve[0]= kernel_tex_fetch(__curve_keys, k0);
+			P_curve[1]= kernel_tex_fetch(__curve_keys, k1);
+		}
+		else {
+			motion_curve_keys(kg, sd->object, sd->prim, sd->time, k0, k1, P_curve);
+		}
+
+		float l = 1.0f;
+		tg = normalize_len(float4_to_float3(P_curve[1] - P_curve[0]), &l);
+
+		P = P + D*t;
+
+		float3 dif = P - float4_to_float3(P_curve[0]);
+
+#ifdef __UV__
+		sd->u = dot(dif,tg)/l;
+		sd->v = 0.0f;
+#endif
+
+		if(flag & CURVE_KN_TRUETANGENTGNORMAL) {
+			sd->Ng = -(D - tg * dot(tg, D));
+			sd->Ng = normalize(sd->Ng);
+		}
+		else {
+			float gd = isect->v;
+
+			/* direction from inside to surface of curve */
+			sd->Ng = (dif - tg * sd->u * l) / (P_curve[0].w + sd->u * l * gd);
+
+			/* adjustment for changing radius */
+			if(gd != 0.0f) {
+				sd->Ng = sd->Ng - gd * tg;
+				sd->Ng = normalize(sd->Ng);
+			}
+		}
+
+		sd->N = sd->Ng;
+	}
+
+#ifdef __DPDU__
+	/* dPdu/dPdv */
+	sd->dPdu = tg;
+	sd->dPdv = cross(tg, sd->Ng);
+#endif
+
+	if(isect->object != OBJECT_NONE) {
+#ifdef __OBJECT_MOTION__
+		Transform tfm = sd->ob_tfm;
+#else
+		Transform tfm = object_fetch_transform(kg, isect->object, OBJECT_TRANSFORM);
+#endif
+
+		P = transform_point(&tfm, P);
+	}
+
+	return P;
+}
+
+#endif
+
+CCL_NAMESPACE_END
diff --git a/intern/cycles/kernel/geom/geom_object.h b/intern/cycles/kernel/geom/geom_object.h
index 6ecdfe0173a..1ffc143be34 100644
--- a/intern/cycles/kernel/geom/geom_object.h
+++ b/intern/cycles/kernel/geom/geom_object.h
@@ -415,12 +415,7 @@ ccl_device_inline float3 bvh_clamp_direction(float3 dir)
 
 ccl_device_inline float3 bvh_inverse_direction(float3 dir)
 {
-	/* TODO(sergey): Currently disabled, gives speedup but causes precision issues. */
-#if defined(__KERNEL_SSE__) && 0
 	return rcp(dir);
-#else
-	return 1.0f / dir;
-#endif
 }
 
 /* Transform ray into object space to enter static object in BVH */
diff --git a/intern/cycles/kernel/geom/geom_volume.h b/intern/cycles/kernel/geom/geom_volume.h
index 1e0ef5201c9..698cd6b03fd 100644
--- a/intern/cycles/kernel/geom/geom_volume.h
+++ b/intern/cycles/kernel/geom/geom_volume.h
@@ -35,10 +35,10 @@ ccl_device float4 volume_image_texture_3d(int id, float x, float y, float z)
 	float4 r;
 	switch(id) {
 		case 0: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_000, x, y, z); break;
-		case 1: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_001, x, y, z); break;
-		case 2: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_002, x, y, z); break;
-		case 3: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_003, x, y, z); break;
-		case 4: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_004, x, y, z); break;
+		case 8: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_008, x, y, z); break;
+		case 16: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_016, x, y, z); break;
+		case 24: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_024, x, y, z); break;
+		case 32: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_032, x, y, z); break;
 	}
 	return r;
 }
diff --git a/intern/cycles/kernel/kernel_accumulate.h b/intern/cycles/kernel/kernel_accumulate.h
index 175bd6b9737..ae5f6e5e070 100644
--- a/intern/cycles/kernel/kernel_accumulate.h
+++ b/intern/cycles/kernel/kernel_accumulate.h
@@ -21,6 +21,9 @@ CCL_NAMESPACE_BEGIN
  * BSDF evaluation result, split per BSDF type. This is used to accumulate
  * render passes separately. */
 
+ccl_device float3 shader_bsdf_transparency(KernelGlobals *kg,
+                                           const ShaderData *sd);
+
 ccl_device_inline void bsdf_eval_init(BsdfEval *eval, ClosureType type, float3 value, int use_light_pass)
 {
 #ifdef __PASSES__
@@ -178,7 +181,6 @@ ccl_device_inline void path_radiance_init(PathRadiance *L, int use_light_pass)
 
 	if(use_light_pass) {
 		L->indirect = make_float3(0.0f, 0.0f, 0.0f);
-		L->direct_throughput = make_float3(0.0f, 0.0f, 0.0f);
 		L->direct_emission = make_float3(0.0f, 0.0f, 0.0f);
 
 		L->color_diffuse = make_float3(0.0f, 0.0f, 0.0f);
@@ -199,57 +201,78 @@ ccl_device_inline void path_radiance_init(PathRadiance *L, int use_light_pass)
 		L->indirect_subsurface = make_float3(0.0f, 0.0f, 0.0f);
 		L->indirect_scatter = make_float3(0.0f, 0.0f, 0.0f);
 
-		L->path_diffuse = make_float3(0.0f, 0.0f, 0.0f);
-		L->path_glossy = make_float3(0.0f, 0.0f, 0.0f);
-		L->path_transmission = make_float3(0.0f, 0.0f, 0.0f);
-		L->path_subsurface = make_float3(0.0f, 0.0f, 0.0f);
-		L->path_scatter = make_float3(0.0f, 0.0f, 0.0f);
-
+		L->transparent = 0.0f;
 		L->emission = make_float3(0.0f, 0.0f, 0.0f);
 		L->background = make_float3(0.0f, 0.0f, 0.0f);
 		L->ao = make_float3(0.0f, 0.0f, 0.0f);
 		L->shadow = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
 		L->mist = 0.0f;
+
+		L->state.diffuse = make_float3(0.0f, 0.0f, 0.0f);
+		L->state.glossy = make_float3(0.0f, 0.0f, 0.0f);
+		L->state.transmission = make_float3(0.0f, 0.0f, 0.0f);
+		L->state.subsurface = make_float3(0.0f, 0.0f, 0.0f);
+		L->state.scatter = make_float3(0.0f, 0.0f, 0.0f);
+		L->state.direct = make_float3(0.0f, 0.0f, 0.0f);
 	}
 	else
 #endif
 	{
+		L->transparent = 0.0f;
 		L->emission = make_float3(0.0f, 0.0f, 0.0f);
 	}
 
 #ifdef __SHADOW_TRICKS__
 	L->path_total = make_float3(0.0f, 0.0f, 0.0f);
 	L->path_total_shaded = make_float3(0.0f, 0.0f, 0.0f);
-	L->shadow_color = make_float3(0.0f, 0.0f, 0.0f);
+	L->shadow_background_color = make_float3(0.0f, 0.0f, 0.0f);
+	L->shadow_throughput = 0.0f;
+	L->shadow_transparency = 1.0f;
+	L->has_shadow_catcher = 0;
 #endif
 
 #ifdef __DENOISING_FEATURES__
 	L->denoising_normal = make_float3(0.0f, 0.0f, 0.0f);
 	L->denoising_albedo = make_float3(0.0f, 0.0f, 0.0f);
 	L->denoising_depth = 0.0f;
-#endif  /* __DENOISING_FEATURES__ */
+#endif
+
+#ifdef __KERNEL_DEBUG__
+	L->debug_data.num_bvh_traversed_nodes = 0;
+	L->debug_data.num_bvh_traversed_instances = 0;
+	L->debug_data.num_bvh_intersections = 0;
+	L->debug_data.num_ray_bounces = 0;
+#endif
 }
 
-ccl_device_inline void path_radiance_bsdf_bounce(PathRadiance *L, ccl_addr_space float3 *throughput,
-	BsdfEval *bsdf_eval, float bsdf_pdf, int bounce, int bsdf_label)
+ccl_device_inline void path_radiance_bsdf_bounce(
+	KernelGlobals *kg,
+	PathRadianceState *L_state,
+	ccl_addr_space float3 *throughput,
+	BsdfEval *bsdf_eval,
+	float bsdf_pdf, int bounce, int bsdf_label)
 {
 	float inverse_pdf = 1.0f/bsdf_pdf;
 
 #ifdef __PASSES__
-	if(L->use_light_pass) {
+	if(kernel_data.film.use_light_pass) {
 		if(bounce == 0 && !(bsdf_label & LABEL_TRANSPARENT)) {
 			/* first on directly visible surface */
 			float3 value = *throughput*inverse_pdf;
 
-			L->path_diffuse = bsdf_eval->diffuse*value;
-			L->path_glossy = bsdf_eval->glossy*value;
-			L->path_transmission = bsdf_eval->transmission*value;
-			L->path_subsurface = bsdf_eval->subsurface*value;
-			L->path_scatter = bsdf_eval->scatter*value;
-
-			*throughput = L->path_diffuse + L->path_glossy + L->path_transmission + L->path_subsurface + L->path_scatter;
+			L_state->diffuse = bsdf_eval->diffuse*value;
+			L_state->glossy = bsdf_eval->glossy*value;
+			L_state->transmission = bsdf_eval->transmission*value;
+			L_state->subsurface = bsdf_eval->subsurface*value;
+			L_state->scatter = bsdf_eval->scatter*value;
+
+			*throughput = L_state->diffuse +
+			              L_state->glossy +
+			              L_state->transmission +
+			              L_state->subsurface +
+			              L_state->scatter;
 			
-			L->direct_throughput = *throughput;
+			L_state->direct = *throughput;
 		}
 		else {
 			/* transparent bounce before first hit, or indirectly visible through BSDF */
@@ -264,13 +287,22 @@ ccl_device_inline void path_radiance_bsdf_bounce(PathRadiance *L, ccl_addr_space
 	}
 }
 
-ccl_device_inline void path_radiance_accum_emission(PathRadiance *L, float3 throughput, float3 value, int bounce)
+ccl_device_inline void path_radiance_accum_emission(PathRadiance *L,
+                                                    ccl_addr_space PathState *state,
+                                                    float3 throughput,
+                                                    float3 value)
 {
+#ifdef __SHADOW_TRICKS__
+	if(state->flag & PATH_RAY_SHADOW_CATCHER) {
+		return;
+	}
+#endif
+
 #ifdef __PASSES__
 	if(L->use_light_pass) {
-		if(bounce == 0)
+		if(state->bounce == 0)
 			L->emission += throughput*value;
-		else if(bounce == 1)
+		else if(state->bounce == 1)
 			L->direct_emission += throughput*value;
 		else
 			L->indirect += throughput*value;
@@ -289,6 +321,18 @@ ccl_device_inline void path_radiance_accum_ao(PathRadiance *L,
                                               float3 bsdf,
                                               float3 ao)
 {
+#ifdef __SHADOW_TRICKS__
+	if(state->flag & PATH_RAY_STORE_SHADOW_INFO) {
+		float3 light = throughput * bsdf;
+		L->path_total += light;
+		L->path_total_shaded += ao * light;
+
+		if(state->flag & PATH_RAY_SHADOW_CATCHER) {
+			return;
+		}
+	}
+#endif
+
 #ifdef __PASSES__
 	if(L->use_light_pass) {
 		if(state->bounce == 0) {
@@ -306,14 +350,6 @@ ccl_device_inline void path_radiance_accum_ao(PathRadiance *L,
 	{
 		L->emission += throughput*bsdf*ao;
 	}
-
-#ifdef __SHADOW_TRICKS__
-	if(state->flag & PATH_RAY_STORE_SHADOW_INFO) {
-		float3 light = throughput * bsdf;
-		L->path_total += light;
-		L->path_total_shaded += ao * light;
-	}
-#endif
 }
 
 ccl_device_inline void path_radiance_accum_total_ao(
@@ -342,6 +378,18 @@ ccl_device_inline void path_radiance_accum_light(PathRadiance *L,
                                                  float shadow_fac,
                                                  bool is_lamp)
 {
+#ifdef __SHADOW_TRICKS__
+	if(state->flag & PATH_RAY_STORE_SHADOW_INFO) {
+		float3 light = throughput * bsdf_eval->sum_no_mis;
+		L->path_total += light;
+		L->path_total_shaded += shadow * light;
+
+		if(state->flag & PATH_RAY_SHADOW_CATCHER) {
+			return;
+		}
+	}
+#endif
+
 #ifdef __PASSES__
 	if(L->use_light_pass) {
 		if(state->bounce == 0) {
@@ -368,14 +416,6 @@ ccl_device_inline void path_radiance_accum_light(PathRadiance *L,
 	{
 		L->emission += throughput*bsdf_eval->diffuse*shadow;
 	}
-
-#ifdef __SHADOW_TRICKS__
-	if(state->flag & PATH_RAY_STORE_SHADOW_INFO) {
-		float3 light = throughput * bsdf_eval->sum_no_mis;
-		L->path_total += light;
-		L->path_total_shaded += shadow * light;
-	}
-#endif
 }
 
 ccl_device_inline void path_radiance_accum_total_light(
@@ -396,11 +436,24 @@ ccl_device_inline void path_radiance_accum_total_light(
 #endif
 }
 
-ccl_device_inline void path_radiance_accum_background(PathRadiance *L,
-                                                      ccl_addr_space PathState *state,
-                                                      float3 throughput,
-                                                      float3 value)
+ccl_device_inline void path_radiance_accum_background(
+        PathRadiance *L,
+        ccl_addr_space PathState *state,
+        float3 throughput,
+        float3 value)
 {
+
+#ifdef __SHADOW_TRICKS__
+	if(state->flag & PATH_RAY_STORE_SHADOW_INFO) {
+		L->path_total += throughput * value;
+		L->path_total_shaded += throughput * value * L->shadow_transparency;
+
+		if(state->flag & PATH_RAY_SHADOW_CATCHER) {
+			return;
+		}
+	}
+#endif
+
 #ifdef __PASSES__
 	if(L->use_light_pass) {
 		if(state->bounce == 0)
@@ -416,20 +469,31 @@ ccl_device_inline void path_radiance_accum_background(PathRadiance *L,
 		L->emission += throughput*value;
 	}
 
-#ifdef __SHADOW_TRICKS__
-	if(state->flag & PATH_RAY_STORE_SHADOW_INFO) {
-		L->path_total += throughput * value;
-		if(state->flag & PATH_RAY_SHADOW_CATCHER_ONLY) {
-			L->path_total_shaded += throughput * value;
-		}
-	}
-#endif
-
 #ifdef __DENOISING_FEATURES__
 	L->denoising_albedo += state->denoising_feature_weight * value;
 #endif  /* __DENOISING_FEATURES__ */
 }
 
+ccl_device_inline void path_radiance_accum_transparent(
+        PathRadiance *L,
+        ccl_addr_space PathState *state,
+        float3 throughput)
+{
+	L->transparent += average(throughput);
+}
+
+#ifdef __SHADOW_TRICKS__
+ccl_device_inline void path_radiance_accum_shadowcatcher(
+        PathRadiance *L,
+        float3 throughput,
+        float3 background)
+{
+	L->shadow_throughput += average(throughput);
+	L->shadow_background_color += throughput * background;
+	L->has_shadow_catcher = 1;
+}
+#endif
+
 ccl_device_inline void path_radiance_sum_indirect(PathRadiance *L)
 {
 #ifdef __PASSES__
@@ -437,19 +501,19 @@ ccl_device_inline void path_radiance_sum_indirect(PathRadiance *L)
 	 * only a single throughput further along the path, here we recover just
 	 * the indirect path that is not influenced by any particular BSDF type */
 	if(L->use_light_pass) {
-		L->direct_emission = safe_divide_color(L->direct_emission, L->direct_throughput);
-		L->direct_diffuse += L->path_diffuse*L->direct_emission;
-		L->direct_glossy += L->path_glossy*L->direct_emission;
-		L->direct_transmission += L->path_transmission*L->direct_emission;
-		L->direct_subsurface += L->path_subsurface*L->direct_emission;
-		L->direct_scatter += L->path_scatter*L->direct_emission;
-
-		L->indirect = safe_divide_color(L->indirect, L->direct_throughput);
-		L->indirect_diffuse += L->path_diffuse*L->indirect;
-		L->indirect_glossy += L->path_glossy*L->indirect;
-		L->indirect_transmission += L->path_transmission*L->indirect;
-		L->indirect_subsurface += L->path_subsurface*L->indirect;
-		L->indirect_scatter += L->path_scatter*L->indirect;
+		L->direct_emission = safe_divide_color(L->direct_emission, L->state.direct);
+		L->direct_diffuse += L->state.diffuse*L->direct_emission;
+		L->direct_glossy += L->state.glossy*L->direct_emission;
+		L->direct_transmission += L->state.transmission*L->direct_emission;
+		L->direct_subsurface += L->state.subsurface*L->direct_emission;
+		L->direct_scatter += L->state.scatter*L->direct_emission;
+
+		L->indirect = safe_divide_color(L->indirect, L->state.direct);
+		L->indirect_diffuse += L->state.diffuse*L->indirect;
+		L->indirect_glossy += L->state.glossy*L->indirect;
+		L->indirect_transmission += L->state.transmission*L->indirect;
+		L->indirect_subsurface += L->state.subsurface*L->indirect;
+		L->indirect_scatter += L->state.scatter*L->indirect;
 	}
 #endif
 }
@@ -458,11 +522,11 @@ ccl_device_inline void path_radiance_reset_indirect(PathRadiance *L)
 {
 #ifdef __PASSES__
 	if(L->use_light_pass) {
-		L->path_diffuse = make_float3(0.0f, 0.0f, 0.0f);
-		L->path_glossy = make_float3(0.0f, 0.0f, 0.0f);
-		L->path_transmission = make_float3(0.0f, 0.0f, 0.0f);
-		L->path_subsurface = make_float3(0.0f, 0.0f, 0.0f);
-		L->path_scatter = make_float3(0.0f, 0.0f, 0.0f);
+		L->state.diffuse = make_float3(0.0f, 0.0f, 0.0f);
+		L->state.glossy = make_float3(0.0f, 0.0f, 0.0f);
+		L->state.transmission = make_float3(0.0f, 0.0f, 0.0f);
+		L->state.subsurface = make_float3(0.0f, 0.0f, 0.0f);
+		L->state.scatter = make_float3(0.0f, 0.0f, 0.0f);
 
 		L->direct_emission = make_float3(0.0f, 0.0f, 0.0f);
 		L->indirect = make_float3(0.0f, 0.0f, 0.0f);
@@ -475,11 +539,7 @@ ccl_device_inline void path_radiance_copy_indirect(PathRadiance *L,
 {
 #ifdef __PASSES__
 	if(L->use_light_pass) {
-		L->path_diffuse = L_src->path_diffuse;
-		L->path_glossy = L_src->path_glossy;
-		L->path_transmission = L_src->path_transmission;
-		L->path_subsurface = L_src->path_subsurface;
-		L->path_scatter = L_src->path_scatter;
+		L->state = L_src->state;
 
 		L->direct_emission = L_src->direct_emission;
 		L->indirect = L_src->indirect;
@@ -487,7 +547,36 @@ ccl_device_inline void path_radiance_copy_indirect(PathRadiance *L,
 #endif
 }
 
-ccl_device_inline float3 path_radiance_clamp_and_sum(KernelGlobals *kg, PathRadiance *L)
+#ifdef __SHADOW_TRICKS__
+ccl_device_inline void path_radiance_sum_shadowcatcher(KernelGlobals *kg,
+                                                       PathRadiance *L,
+                                                       float3 *L_sum,
+                                                       float *alpha)
+{
+	/* Calculate current shadow of the path. */
+	float path_total = average(L->path_total);
+	float shadow;
+
+	if(path_total == 0.0f) {
+		shadow = L->shadow_transparency;
+	}
+	else {
+		float path_total_shaded = average(L->path_total_shaded);
+		shadow = path_total_shaded / path_total;
+	}
+
+	/* Calculate final light sum and transparency for shadow catcher object. */
+	if(kernel_data.background.transparent) {
+		*alpha -= L->shadow_throughput * shadow;
+	}
+	else {
+		L->shadow_background_color *= shadow;
+		*L_sum += L->shadow_background_color;
+	}
+}
+#endif
+
+ccl_device_inline float3 path_radiance_clamp_and_sum(KernelGlobals *kg, PathRadiance *L, float *alpha)
 {
 	float3 L_sum;
 	/* Light Passes are used */
@@ -564,8 +653,6 @@ ccl_device_inline float3 path_radiance_clamp_and_sum(KernelGlobals *kg, PathRadi
 			L_sum = L_direct + L_indirect;
 		}
 #endif
-
-		return L_sum;
 	}
 
 	/* No Light Passes */
@@ -573,14 +660,24 @@ ccl_device_inline float3 path_radiance_clamp_and_sum(KernelGlobals *kg, PathRadi
 #endif
 	{
 		L_sum = L->emission;
+
+		/* Reject invalid value */
+		float sum = fabsf((L_sum).x) + fabsf((L_sum).y) + fabsf((L_sum).z);
+		if(!isfinite_safe(sum)) {
+			kernel_assert(!"Non-finite final sum in path_radiance_clamp_and_sum!");
+			L_sum = make_float3(0.0f, 0.0f, 0.0f);
+		}
 	}
 
-	/* Reject invalid value */
-	float sum = fabsf((L_sum).x) + fabsf((L_sum).y) + fabsf((L_sum).z);
-	if(!isfinite_safe(sum)) {
-		kernel_assert(!"Non-finite final sum in path_radiance_clamp_and_sum!");
-		L_sum = make_float3(0.0f, 0.0f, 0.0f);
+	/* Compute alpha. */
+	*alpha = 1.0f - L->transparent;
+
+	/* Add shadow catcher contributions. */
+#ifdef __SHADOW_TRICKS__
+	if(L->has_shadow_catcher) {
+		path_radiance_sum_shadowcatcher(kg, L, &L_sum, alpha);
 	}
+#endif  /* __SHADOW_TRICKS__ */
 
 	return L_sum;
 }
@@ -613,14 +710,18 @@ ccl_device_inline void path_radiance_split_denoising(KernelGlobals *kg, PathRadi
 	*clean = make_float3(0.0f, 0.0f, 0.0f);
 #endif
 
+#ifdef __SHADOW_TRICKS__
+	if(L->has_shadow_catcher) {
+		*noisy += L->shadow_background_color;
+	}
+#endif
+
 	*noisy = ensure_finite3(*noisy);
 	*clean = ensure_finite3(*clean);
 }
 
-ccl_device_inline void path_radiance_accum_sample(PathRadiance *L, PathRadiance *L_sample, int num_samples)
+ccl_device_inline void path_radiance_accum_sample(PathRadiance *L, PathRadiance *L_sample)
 {
-	float fac = 1.0f/num_samples;
-
 #ifdef __SPLIT_KERNEL__
 #  define safe_float3_add(f, v) \
 	do { \
@@ -629,65 +730,35 @@ ccl_device_inline void path_radiance_accum_sample(PathRadiance *L, PathRadiance
 		atomic_add_and_fetch_float(p+1, (v).y); \
 		atomic_add_and_fetch_float(p+2, (v).z); \
 	} while(0)
+#  define safe_float_add(f, v) \
+		atomic_add_and_fetch_float(&(f), (v))
 #else
 #  define safe_float3_add(f, v) (f) += (v)
+#  define safe_float_add(f, v) (f) += (v)
 #endif  /* __SPLIT_KERNEL__ */
 
 #ifdef __PASSES__
-	safe_float3_add(L->direct_diffuse, L_sample->direct_diffuse*fac);
-	safe_float3_add(L->direct_glossy, L_sample->direct_glossy*fac);
-	safe_float3_add(L->direct_transmission, L_sample->direct_transmission*fac);
-	safe_float3_add(L->direct_subsurface, L_sample->direct_subsurface*fac);
-	safe_float3_add(L->direct_scatter, L_sample->direct_scatter*fac);
-
-	safe_float3_add(L->indirect_diffuse, L_sample->indirect_diffuse*fac);
-	safe_float3_add(L->indirect_glossy, L_sample->indirect_glossy*fac);
-	safe_float3_add(L->indirect_transmission, L_sample->indirect_transmission*fac);
-	safe_float3_add(L->indirect_subsurface, L_sample->indirect_subsurface*fac);
-	safe_float3_add(L->indirect_scatter, L_sample->indirect_scatter*fac);
-
-	safe_float3_add(L->background, L_sample->background*fac);
-	safe_float3_add(L->ao, L_sample->ao*fac);
-	safe_float3_add(L->shadow, L_sample->shadow*fac);
-#  ifdef __SPLIT_KERNEL__
-	atomic_add_and_fetch_float(&L->mist, L_sample->mist*fac);
-#  else
-	L->mist += L_sample->mist*fac;
-#  endif  /* __SPLIT_KERNEL__ */
+	safe_float3_add(L->direct_diffuse, L_sample->direct_diffuse);
+	safe_float3_add(L->direct_glossy, L_sample->direct_glossy);
+	safe_float3_add(L->direct_transmission, L_sample->direct_transmission);
+	safe_float3_add(L->direct_subsurface, L_sample->direct_subsurface);
+	safe_float3_add(L->direct_scatter, L_sample->direct_scatter);
+
+	safe_float3_add(L->indirect_diffuse, L_sample->indirect_diffuse);
+	safe_float3_add(L->indirect_glossy, L_sample->indirect_glossy);
+	safe_float3_add(L->indirect_transmission, L_sample->indirect_transmission);
+	safe_float3_add(L->indirect_subsurface, L_sample->indirect_subsurface);
+	safe_float3_add(L->indirect_scatter, L_sample->indirect_scatter);
+
+	safe_float3_add(L->background, L_sample->background);
+	safe_float3_add(L->ao, L_sample->ao);
+	safe_float3_add(L->shadow, L_sample->shadow);
+	safe_float_add(L->mist, L_sample->mist);
 #endif  /* __PASSES__ */
-	safe_float3_add(L->emission, L_sample->emission*fac);
+	safe_float3_add(L->emission, L_sample->emission);
 
+#undef safe_float_add
 #undef safe_float3_add
 }
 
-#ifdef __SHADOW_TRICKS__
-/* Calculate current shadow of the path. */
-ccl_device_inline float path_radiance_sum_shadow(const PathRadiance *L)
-{
-	float path_total = average(L->path_total);
-	float path_total_shaded = average(L->path_total_shaded);
-	if(path_total != 0.0f) {
-		return path_total_shaded / path_total;
-	}
-	return 1.0f;
-}
-
-/* Calculate final light sum and transparency for shadow catcher object. */
-ccl_device_inline float3 path_radiance_sum_shadowcatcher(KernelGlobals *kg,
-                                                         const PathRadiance *L,
-                                                         float* alpha)
-{
-	const float shadow = path_radiance_sum_shadow(L);
-	float3 L_sum;
-	if(kernel_data.background.transparent) {
-		*alpha = 1.0f-shadow;
-		L_sum = make_float3(0.0f, 0.0f, 0.0f);
-	}
-	else {
-		L_sum = L->shadow_color * shadow;
-	}
-	return L_sum;
-}
-#endif
-
 CCL_NAMESPACE_END
diff --git a/intern/cycles/kernel/kernel_bake.h b/intern/cycles/kernel/kernel_bake.h
index f18d145f7cf..4d89839c46c 100644
--- a/intern/cycles/kernel/kernel_bake.h
+++ b/intern/cycles/kernel/kernel_bake.h
@@ -21,7 +21,7 @@ CCL_NAMESPACE_BEGIN
 ccl_device_inline void compute_light_pass(KernelGlobals *kg,
                                           ShaderData *sd,
                                           PathRadiance *L,
-                                          RNG rng,
+                                          uint rng_hash,
                                           int pass_filter,
                                           int sample)
 {
@@ -48,11 +48,10 @@ ccl_device_inline void compute_light_pass(KernelGlobals *kg,
 	path_radiance_init(&L_sample, kernel_data.film.use_light_pass);
 
 	/* init path state */
-	path_state_init(kg, &emission_sd, &state, &rng, sample, NULL);
+	path_state_init(kg, &emission_sd, &state, rng_hash, sample, NULL);
 
 	/* evaluate surface shader */
-	float rbsdf = path_state_rng_1D(kg, &rng, &state, PRNG_BSDF);
-	shader_eval_surface(kg, sd, &rng, &state, rbsdf, state.flag, SHADER_CONTEXT_MAIN);
+	shader_eval_surface(kg, sd, &state, state.flag);
 
 	/* TODO, disable more closures we don't need besides transparent */
 	shader_bsdf_disable_transparency(kg, sd);
@@ -64,13 +63,13 @@ ccl_device_inline void compute_light_pass(KernelGlobals *kg,
 
 		/* sample ambient occlusion */
 		if(pass_filter & BAKE_FILTER_AO) {
-			kernel_path_ao(kg, sd, &emission_sd, &L_sample, &state, &rng, throughput, shader_bsdf_alpha(kg, sd));
+			kernel_path_ao(kg, sd, &emission_sd, &L_sample, &state, throughput, shader_bsdf_alpha(kg, sd));
 		}
 
 		/* sample emission */
 		if((pass_filter & BAKE_FILTER_EMISSION) && (sd->flag & SD_EMISSION)) {
 			float3 emission = indirect_primitive_emission(kg, sd, 0.0f, state.flag, state.ray_pdf);
-			path_radiance_accum_emission(&L_sample, throughput, emission, state.bounce);
+			path_radiance_accum_emission(&L_sample, &state, throughput, emission);
 		}
 
 		bool is_sss_sample = false;
@@ -86,7 +85,6 @@ ccl_device_inline void compute_light_pass(KernelGlobals *kg,
 			                                  &emission_sd,
 			                                  &L_sample,
 			                                  &state,
-			                                  &rng,
 			                                  &ray,
 			                                  &throughput,
 			                                  &ss_indirect))
@@ -101,13 +99,10 @@ ccl_device_inline void compute_light_pass(KernelGlobals *kg,
 					kernel_path_indirect(kg,
 					                     &indirect_sd,
 					                     &emission_sd,
-					                     &rng,
 					                     &ray,
 					                     throughput,
-					                     state.num_samples,
 					                     &state,
 					                     &L_sample);
-					kernel_path_subsurface_accum_indirect(&ss_indirect, &L_sample);
 				}
 				is_sss_sample = true;
 			}
@@ -116,14 +111,14 @@ ccl_device_inline void compute_light_pass(KernelGlobals *kg,
 
 		/* sample light and BSDF */
 		if(!is_sss_sample && (pass_filter & (BAKE_FILTER_DIRECT | BAKE_FILTER_INDIRECT))) {
-			kernel_path_surface_connect_light(kg, &rng, sd, &emission_sd, throughput, &state, &L_sample);
+			kernel_path_surface_connect_light(kg, sd, &emission_sd, throughput, &state, &L_sample);
 
-			if(kernel_path_surface_bounce(kg, &rng, sd, &throughput, &state, &L_sample, &ray)) {
+			if(kernel_path_surface_bounce(kg, sd, &throughput, &state, &L_sample.state, &ray)) {
 #ifdef __LAMP_MIS__
 				state.ray_t = 0.0f;
 #endif
 				/* compute indirect light */
-				kernel_path_indirect(kg, &indirect_sd, &emission_sd, &rng, &ray, throughput, 1, &state, &L_sample);
+				kernel_path_indirect(kg, &indirect_sd, &emission_sd, &ray, throughput, &state, &L_sample);
 
 				/* sum and reset indirect light pass variables for the next samples */
 				path_radiance_sum_indirect(&L_sample);
@@ -137,13 +132,13 @@ ccl_device_inline void compute_light_pass(KernelGlobals *kg,
 
 		/* sample ambient occlusion */
 		if(pass_filter & BAKE_FILTER_AO) {
-			kernel_branched_path_ao(kg, sd, &emission_sd, &L_sample, &state, &rng, throughput);
+			kernel_branched_path_ao(kg, sd, &emission_sd, &L_sample, &state, throughput);
 		}
 
 		/* sample emission */
 		if((pass_filter & BAKE_FILTER_EMISSION) && (sd->flag & SD_EMISSION)) {
 			float3 emission = indirect_primitive_emission(kg, sd, 0.0f, state.flag, state.ray_pdf);
-			path_radiance_accum_emission(&L_sample, throughput, emission, state.bounce);
+			path_radiance_accum_emission(&L_sample, &state, throughput, emission);
 		}
 
 #ifdef __SUBSURFACE__
@@ -151,7 +146,7 @@ ccl_device_inline void compute_light_pass(KernelGlobals *kg,
 		if((pass_filter & BAKE_FILTER_SUBSURFACE) && (sd->flag & SD_BSSRDF)) {
 			/* when mixing BSSRDF and BSDF closures we should skip BSDF lighting if scattering was successful */
 			kernel_branched_path_subsurface_scatter(kg, sd, &indirect_sd,
-				&emission_sd, &L_sample, &state, &rng, &ray, throughput);
+				&emission_sd, &L_sample, &state, &ray, throughput);
 		}
 #endif
 
@@ -161,20 +156,20 @@ ccl_device_inline void compute_light_pass(KernelGlobals *kg,
 			/* direct light */
 			if(kernel_data.integrator.use_direct_light) {
 				int all = kernel_data.integrator.sample_all_lights_direct;
-				kernel_branched_path_surface_connect_light(kg, &rng,
+				kernel_branched_path_surface_connect_light(kg,
 					sd, &emission_sd, &state, throughput, 1.0f, &L_sample, all);
 			}
 #endif
 
 			/* indirect light */
-			kernel_branched_path_surface_indirect_light(kg, &rng,
+			kernel_branched_path_surface_indirect_light(kg,
 				sd, &indirect_sd, &emission_sd, throughput, 1.0f, &state, &L_sample);
 		}
 	}
 #endif
 
 	/* accumulate into master L */
-	path_radiance_accum_sample(L, &L_sample, 1);
+	path_radiance_accum_sample(L, &L_sample);
 }
 
 ccl_device bool is_aa_pass(ShaderEvalType type)
@@ -225,7 +220,6 @@ ccl_device_inline float3 kernel_bake_shader_bsdf(KernelGlobals *kg,
 
 ccl_device float3 kernel_bake_evaluate_direct_indirect(KernelGlobals *kg,
                                                        ShaderData *sd,
-                                                       RNG *rng,
                                                        PathState *state,
                                                        float3 direct,
                                                        float3 indirect,
@@ -245,12 +239,12 @@ ccl_device float3 kernel_bake_evaluate_direct_indirect(KernelGlobals *kg,
 		}
 		else {
 			/* surface color of the pass only */
-			shader_eval_surface(kg, sd, rng, state, 0.0f, 0, SHADER_CONTEXT_MAIN);
+			shader_eval_surface(kg, sd, state, 0);
 			return kernel_bake_shader_bsdf(kg, sd, type);
 		}
 	}
 	else {
-		shader_eval_surface(kg, sd, rng, state, 0.0f, 0, SHADER_CONTEXT_MAIN);
+		shader_eval_surface(kg, sd, state, 0);
 		color = kernel_bake_shader_bsdf(kg, sd, type);
 	}
 
@@ -292,14 +286,14 @@ ccl_device void kernel_bake_evaluate(KernelGlobals *kg, ccl_global uint4 *input,
 	int num_samples = kernel_data.integrator.aa_samples;
 
 	/* random number generator */
-	RNG rng = cmj_hash(offset + i, kernel_data.integrator.seed);
+	uint rng_hash = cmj_hash(offset + i, kernel_data.integrator.seed);
 
 	float filter_x, filter_y;
 	if(sample == 0) {
 		filter_x = filter_y = 0.5f;
 	}
 	else {
-		path_rng_2D(kg, &rng, sample, num_samples, PRNG_FILTER_U, &filter_x, &filter_y);
+		path_rng_2D(kg, rng_hash, sample, num_samples, PRNG_FILTER_U, &filter_x, &filter_y);
 	}
 
 	/* subpixel u/v offset */
@@ -335,18 +329,18 @@ ccl_device void kernel_bake_evaluate(KernelGlobals *kg, ccl_global uint4 *input,
 
 	/* light passes if we need more than color */
 	if(pass_filter & ~BAKE_FILTER_COLOR)
-		compute_light_pass(kg, &sd, &L, rng, pass_filter, sample);
+		compute_light_pass(kg, &sd, &L, rng_hash, pass_filter, sample);
 
 	switch(type) {
 		/* data passes */
 		case SHADER_EVAL_NORMAL:
 		{
 			if((sd.flag & SD_HAS_BUMP)) {
-				shader_eval_surface(kg, &sd, &rng, &state, 0.f, 0, SHADER_CONTEXT_MAIN);
+				shader_eval_surface(kg, &sd, &state, 0);
 			}
 
-			/* compression: normal = (2 * color) - 1 */
-			out = sd.N * 0.5f + make_float3(0.5f, 0.5f, 0.5f);
+			/* encoding: normal = (2 * color) - 1 */
+			out = shader_bsdf_average_normal(kg, &sd) * 0.5f + make_float3(0.5f, 0.5f, 0.5f);
 			break;
 		}
 		case SHADER_EVAL_UV:
@@ -356,7 +350,7 @@ ccl_device void kernel_bake_evaluate(KernelGlobals *kg, ccl_global uint4 *input,
 		}
 		case SHADER_EVAL_EMISSION:
 		{
-			shader_eval_surface(kg, &sd, &rng, &state, 0.f, 0, SHADER_CONTEXT_EMISSION);
+			shader_eval_surface(kg, &sd, &state, 0);
 			out = shader_emissive_eval(kg, &sd);
 			break;
 		}
@@ -371,7 +365,8 @@ ccl_device void kernel_bake_evaluate(KernelGlobals *kg, ccl_global uint4 *input,
 		case SHADER_EVAL_COMBINED:
 		{
 			if((pass_filter & BAKE_FILTER_COMBINED) == BAKE_FILTER_COMBINED) {
-				out = path_radiance_clamp_and_sum(kg, &L);
+				float alpha;
+				out = path_radiance_clamp_and_sum(kg, &L, &alpha);
 				break;
 			}
 
@@ -409,7 +404,6 @@ ccl_device void kernel_bake_evaluate(KernelGlobals *kg, ccl_global uint4 *input,
 		{
 			out = kernel_bake_evaluate_direct_indirect(kg,
 			                                           &sd,
-			                                           &rng,
 			                                           &state,
 			                                           L.direct_diffuse,
 			                                           L.indirect_diffuse,
@@ -421,7 +415,6 @@ ccl_device void kernel_bake_evaluate(KernelGlobals *kg, ccl_global uint4 *input,
 		{
 			out = kernel_bake_evaluate_direct_indirect(kg,
 			                                           &sd,
-			                                           &rng,
 			                                           &state,
 			                                           L.direct_glossy,
 			                                           L.indirect_glossy,
@@ -433,7 +426,6 @@ ccl_device void kernel_bake_evaluate(KernelGlobals *kg, ccl_global uint4 *input,
 		{
 			out = kernel_bake_evaluate_direct_indirect(kg,
 			                                           &sd,
-			                                           &rng,
 			                                           &state,
 			                                           L.direct_transmission,
 			                                           L.indirect_transmission,
@@ -446,7 +438,6 @@ ccl_device void kernel_bake_evaluate(KernelGlobals *kg, ccl_global uint4 *input,
 #ifdef __SUBSURFACE__
 			out = kernel_bake_evaluate_direct_indirect(kg,
 			                                           &sd,
-			                                           &rng,
 			                                           &state,
 			                                           L.direct_subsurface,
 			                                           L.indirect_subsurface,
@@ -480,7 +471,7 @@ ccl_device void kernel_bake_evaluate(KernelGlobals *kg, ccl_global uint4 *input,
 
 			/* evaluate */
 			int flag = 0; /* we can't know which type of BSDF this is for */
-			out = shader_eval_background(kg, &sd, &state, flag, SHADER_CONTEXT_MAIN);
+			out = shader_eval_background(kg, &sd, &state, flag);
 			break;
 		}
 		default:
@@ -524,7 +515,7 @@ ccl_device void kernel_shader_evaluate(KernelGlobals *kg,
 
 		/* evaluate */
 		float3 P = sd.P;
-		shader_eval_displacement(kg, &sd, &state, SHADER_CONTEXT_MAIN);
+		shader_eval_displacement(kg, &sd, &state);
 		out = sd.P - P;
 
 		object_inverse_dir_transform(kg, &sd, &out);
@@ -552,7 +543,7 @@ ccl_device void kernel_shader_evaluate(KernelGlobals *kg,
 
 		/* evaluate */
 		int flag = 0; /* we can't know which type of BSDF this is for */
-		out = shader_eval_background(kg, &sd, &state, flag, SHADER_CONTEXT_MAIN);
+		out = shader_eval_background(kg, &sd, &state, flag);
 	}
 	
 	/* write output */
diff --git a/intern/cycles/kernel/kernel_compat_cuda.h b/intern/cycles/kernel/kernel_compat_cuda.h
index 38708f7ff0b..1e2af9de8b3 100644
--- a/intern/cycles/kernel/kernel_compat_cuda.h
+++ b/intern/cycles/kernel/kernel_compat_cuda.h
@@ -38,11 +38,15 @@
 /* Qualifier wrappers for different names on different devices */
 
 #define ccl_device  __device__ __inline__
+#if __CUDA_ARCH__ < 300
+#  define ccl_device_inline  __device__ __inline__
 #  define ccl_device_forceinline  __device__ __forceinline__
-#if __CUDA_ARCH__ < 500
+#elif __CUDA_ARCH__ < 500
 #  define ccl_device_inline  __device__ __forceinline__
+#  define ccl_device_forceinline  __device__ __forceinline__
 #else
 #  define ccl_device_inline  __device__ __inline__
+#  define ccl_device_forceinline  __device__ __forceinline__
 #endif
 #define ccl_device_noinline  __device__ __noinline__
 #define ccl_global
@@ -53,6 +57,10 @@
 #define ccl_may_alias
 #define ccl_addr_space
 #define ccl_restrict __restrict__
+/* TODO(sergey): In theory we might use references with CUDA, however
+ * performance impact yet to be investigated.
+ */
+#define ccl_ref
 #define ccl_align(n) __align__(n)
 
 #define ATTR_FALLTHROUGH
diff --git a/intern/cycles/kernel/kernel_compat_opencl.h b/intern/cycles/kernel/kernel_compat_opencl.h
index 4836c290312..36d6031d042 100644
--- a/intern/cycles/kernel/kernel_compat_opencl.h
+++ b/intern/cycles/kernel/kernel_compat_opencl.h
@@ -42,6 +42,7 @@
 #define ccl_local_param __local
 #define ccl_private __private
 #define ccl_restrict restrict
+#define ccl_ref
 #define ccl_align(n) __attribute__((aligned(n)))
 
 #ifdef __SPLIT_KERNEL__
@@ -129,6 +130,7 @@
 #  define expf(x) native_exp(((float)(x)))
 #  define sqrtf(x) native_sqrt(((float)(x)))
 #  define logf(x) native_log(((float)(x)))
+#  define rcp(x)  native_recip(x)
 #else
 #  define sinf(x) sin(((float)(x)))
 #  define cosf(x) cos(((float)(x)))
@@ -136,11 +138,12 @@
 #  define expf(x) exp(((float)(x)))
 #  define sqrtf(x) sqrt(((float)(x)))
 #  define logf(x) log(((float)(x)))
+#  define rcp(x)  recip(x))
 #endif
 
 /* data lookup defines */
 #define kernel_data (*kg->data)
-#define kernel_tex_fetch(t, index) kg->t[index]
+#define kernel_tex_fetch(tex, index) ((ccl_global tex##_t*)(kg->buffers[kg->tex.buffer] + kg->tex.offset))[(index)]
 
 /* define NULL */
 #define NULL 0
diff --git a/intern/cycles/kernel/kernel_debug.h b/intern/cycles/kernel/kernel_debug.h
deleted file mode 100644
index 5647bbae5b5..00000000000
--- a/intern/cycles/kernel/kernel_debug.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright 2011-2014 Blender Foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-CCL_NAMESPACE_BEGIN
-
-ccl_device_inline void debug_data_init(DebugData *debug_data)
-{
-	debug_data->num_bvh_traversed_nodes = 0;
-	debug_data->num_bvh_traversed_instances = 0;
-	debug_data->num_bvh_intersections = 0;
-	debug_data->num_ray_bounces = 0;
-}
-
-ccl_device_inline void kernel_write_debug_passes(KernelGlobals *kg,
-                                                 ccl_global float *buffer,
-                                                 ccl_addr_space PathState *state,
-                                                 DebugData *debug_data,
-                                                 int sample)
-{
-	int flag = kernel_data.film.pass_flag;
-	if(flag & PASS_BVH_TRAVERSED_NODES) {
-		kernel_write_pass_float(buffer + kernel_data.film.pass_bvh_traversed_nodes,
-		                        sample,
-		                        debug_data->num_bvh_traversed_nodes);
-	}
-	if(flag & PASS_BVH_TRAVERSED_INSTANCES) {
-		kernel_write_pass_float(buffer + kernel_data.film.pass_bvh_traversed_instances,
-		                        sample,
-		                        debug_data->num_bvh_traversed_instances);
-	}
-	if(flag & PASS_BVH_INTERSECTIONS) {
-		kernel_write_pass_float(buffer + kernel_data.film.pass_bvh_intersections,
-		                        sample,
-		                        debug_data->num_bvh_intersections);
-	}
-	if(flag & PASS_RAY_BOUNCES) {
-		kernel_write_pass_float(buffer + kernel_data.film.pass_ray_bounces,
-		                        sample,
-		                        debug_data->num_ray_bounces);
-	}
-}
-
-CCL_NAMESPACE_END
diff --git a/intern/cycles/kernel/kernel_emission.h b/intern/cycles/kernel/kernel_emission.h
index 9e7d51f23f5..45b8c6311e1 100644
--- a/intern/cycles/kernel/kernel_emission.h
+++ b/intern/cycles/kernel/kernel_emission.h
@@ -37,16 +37,14 @@ ccl_device_noinline float3 direct_emissive_eval(KernelGlobals *kg,
 		ray.D = ls->D;
 		ray.P = ls->P;
 		ray.t = 1.0f;
-#  ifdef __OBJECT_MOTION__
 		ray.time = time;
-#  endif
 		ray.dP = differential3_zero();
 		ray.dD = dI;
 
 		shader_setup_from_background(kg, emission_sd, &ray);
 
 		path_state_modify_bounce(state, true);
-		eval = shader_eval_background(kg, emission_sd, state, 0, SHADER_CONTEXT_EMISSION);
+		eval = shader_eval_background(kg, emission_sd, state, 0);
 		path_state_modify_bounce(state, false);
 	}
 	else
@@ -72,7 +70,7 @@ ccl_device_noinline float3 direct_emissive_eval(KernelGlobals *kg,
 		/* no path flag, we're evaluating this for all closures. that's weak but
 		 * we'd have to do multiple evaluations otherwise */
 		path_state_modify_bounce(state, true);
-		shader_eval_surface(kg, emission_sd, NULL, state, 0.0f, 0, SHADER_CONTEXT_EMISSION);
+		shader_eval_surface(kg, emission_sd, state, 0);
 		path_state_modify_bounce(state, false);
 
 		/* evaluate emissive closure */
@@ -216,7 +214,7 @@ ccl_device_noinline float3 indirect_primitive_emission(KernelGlobals *kg, Shader
 	{
 		/* multiple importance sampling, get triangle light pdf,
 		 * and compute weight with respect to BSDF pdf */
-		float pdf = triangle_light_pdf(kg, sd->Ng, sd->I, t);
+		float pdf = triangle_light_pdf(kg, sd, t);
 		float mis_weight = power_heuristic(bsdf_pdf, pdf);
 
 		return L*mis_weight;
@@ -319,7 +317,7 @@ ccl_device_noinline float3 indirect_background(KernelGlobals *kg,
 #  endif
 
 	path_state_modify_bounce(state, true);
-	float3 L = shader_eval_background(kg, emission_sd, state, state->flag, SHADER_CONTEXT_EMISSION);
+	float3 L = shader_eval_background(kg, emission_sd, state, state->flag);
 	path_state_modify_bounce(state, false);
 
 #ifdef __BACKGROUND_MIS__
diff --git a/intern/cycles/kernel/kernel_globals.h b/intern/cycles/kernel/kernel_globals.h
index f95f0d98c52..9d55183d94b 100644
--- a/intern/cycles/kernel/kernel_globals.h
+++ b/intern/cycles/kernel/kernel_globals.h
@@ -23,6 +23,10 @@
 #  include "util/util_vector.h"
 #endif
 
+#ifdef __KERNEL_OPENCL__
+#  include "util/util_atomic.h"
+#endif
+
 CCL_NAMESPACE_BEGIN
 
 /* On the CPU, we pass along the struct KernelGlobals to nearly everywhere in
@@ -109,11 +113,22 @@ typedef struct KernelGlobals {
 
 #ifdef __KERNEL_OPENCL__
 
+#  define KERNEL_TEX(type, ttype, name) \
+typedef type name##_t;
+#  include "kernel/kernel_textures.h"
+
+typedef struct tex_info_t {
+	uint buffer, padding;
+	uint64_t offset;
+	uint width, height, depth, options;
+} tex_info_t;
+
 typedef ccl_addr_space struct KernelGlobals {
 	ccl_constant KernelData *data;
+	ccl_global char *buffers[8];
 
 #  define KERNEL_TEX(type, ttype, name) \
-	ccl_global type *name;
+	tex_info_t name;
 #  include "kernel/kernel_textures.h"
 
 #  ifdef __SPLIT_KERNEL__
@@ -122,6 +137,57 @@ typedef ccl_addr_space struct KernelGlobals {
 #  endif
 } KernelGlobals;
 
+#define KERNEL_BUFFER_PARAMS \
+	ccl_global char *buffer0, \
+	ccl_global char *buffer1, \
+	ccl_global char *buffer2, \
+	ccl_global char *buffer3, \
+	ccl_global char *buffer4, \
+	ccl_global char *buffer5, \
+	ccl_global char *buffer6, \
+	ccl_global char *buffer7
+
+#define KERNEL_BUFFER_ARGS buffer0, buffer1, buffer2, buffer3, buffer4, buffer5, buffer6, buffer7
+
+ccl_device_inline void kernel_set_buffer_pointers(KernelGlobals *kg, KERNEL_BUFFER_PARAMS)
+{
+#ifdef __SPLIT_KERNEL__
+	if(ccl_local_id(0) + ccl_local_id(1) == 0)
+#endif
+	{
+		kg->buffers[0] = buffer0;
+		kg->buffers[1] = buffer1;
+		kg->buffers[2] = buffer2;
+		kg->buffers[3] = buffer3;
+		kg->buffers[4] = buffer4;
+		kg->buffers[5] = buffer5;
+		kg->buffers[6] = buffer6;
+		kg->buffers[7] = buffer7;
+	}
+
+#  ifdef __SPLIT_KERNEL__
+	ccl_barrier(CCL_LOCAL_MEM_FENCE);
+#  endif
+}
+
+ccl_device_inline void kernel_set_buffer_info(KernelGlobals *kg)
+{
+#  ifdef __SPLIT_KERNEL__
+	if(ccl_local_id(0) + ccl_local_id(1) == 0)
+#  endif
+	{
+		ccl_global tex_info_t *info = (ccl_global tex_info_t*)kg->buffers[0];
+
+#  define KERNEL_TEX(type, ttype, name) \
+		kg->name = *(info++);
+#  include "kernel/kernel_textures.h"
+	}
+
+#  ifdef __SPLIT_KERNEL__
+	ccl_barrier(CCL_LOCAL_MEM_FENCE);
+#  endif
+}
+
 #endif  /* __KERNEL_OPENCL__ */
 
 /* Interpolated lookup table access */
diff --git a/intern/cycles/kernel/kernel_image_opencl.h b/intern/cycles/kernel/kernel_image_opencl.h
index 90747e09357..9e3373432ec 100644
--- a/intern/cycles/kernel/kernel_image_opencl.h
+++ b/intern/cycles/kernel/kernel_image_opencl.h
@@ -15,30 +15,42 @@
  */
 
 
-/* For OpenCL all images are packed in a single array, and we do manual lookup
- * and interpolation. */
+/* For OpenCL we do manual lookup and interpolation. */
+
+ccl_device_inline ccl_global tex_info_t* kernel_tex_info(KernelGlobals *kg, uint id) {
+	const uint tex_offset = id
+#define KERNEL_TEX(type, ttype, name) + 1
+#include "kernel/kernel_textures.h"
+	;
+
+	return &((ccl_global tex_info_t*)kg->buffers[0])[tex_offset];
+}
+
+#define tex_fetch(type, info, index) ((ccl_global type*)(kg->buffers[info->buffer] + info->offset))[(index)]
 
 ccl_device_inline float4 svm_image_texture_read(KernelGlobals *kg, int id, int offset)
 {
+	const ccl_global tex_info_t *info = kernel_tex_info(kg, id);
 	const int texture_type = kernel_tex_type(id);
+
 	/* Float4 */
 	if(texture_type == IMAGE_DATA_TYPE_FLOAT4) {
-		return kernel_tex_fetch(__tex_image_float4_packed, offset);
+		return tex_fetch(float4, info, offset);
 	}
 	/* Byte4 */
 	else if(texture_type == IMAGE_DATA_TYPE_BYTE4) {
-		uchar4 r = kernel_tex_fetch(__tex_image_byte4_packed, offset);
+		uchar4 r = tex_fetch(uchar4, info, offset);
 		float f = 1.0f/255.0f;
 		return make_float4(r.x*f, r.y*f, r.z*f, r.w*f);
 	}
 	/* Float */
 	else if(texture_type == IMAGE_DATA_TYPE_FLOAT) {
-		float f = kernel_tex_fetch(__tex_image_float_packed, offset);
+		float f = tex_fetch(float, info, offset);
 		return make_float4(f, f, f, 1.0f);
 	}
 	/* Byte */
 	else {
-		uchar r = kernel_tex_fetch(__tex_image_byte_packed, offset);
+		uchar r = tex_fetch(uchar, info, offset);
 		float f = r * (1.0f/255.0f);
 		return make_float4(f, f, f, 1.0f);
 	}
@@ -64,17 +76,17 @@ ccl_device_inline float svm_image_texture_frac(float x, int *ix)
 	return x - (float)i;
 }
 
-ccl_device_inline uint kernel_decode_image_interpolation(uint4 info)
+ccl_device_inline uint kernel_decode_image_interpolation(uint info)
 {
-	return (info.w & (1 << 0)) ? INTERPOLATION_CLOSEST : INTERPOLATION_LINEAR;
+	return (info & (1 << 0)) ? INTERPOLATION_CLOSEST : INTERPOLATION_LINEAR;
 }
 
-ccl_device_inline uint kernel_decode_image_extension(uint4 info)
+ccl_device_inline uint kernel_decode_image_extension(uint info)
 {
-	if(info.w & (1 << 1)) {
+	if(info & (1 << 1)) {
 		return EXTENSION_REPEAT;
 	}
-	else if(info.w & (1 << 2)) {
+	else if(info & (1 << 2)) {
 		return EXTENSION_EXTEND;
 	}
 	else {
@@ -84,13 +96,16 @@ ccl_device_inline uint kernel_decode_image_extension(uint4 info)
 
 ccl_device float4 kernel_tex_image_interp(KernelGlobals *kg, int id, float x, float y)
 {
-	uint4 info = kernel_tex_fetch(__tex_image_packed_info, id*2);
-	uint width = info.x;
-	uint height = info.y;
-	uint offset = info.z;
+	const ccl_global tex_info_t *info = kernel_tex_info(kg, id);
+
+	uint width = info->width;
+	uint height = info->height;
+	uint offset = 0;
+
 	/* Decode image options. */
-	uint interpolation = kernel_decode_image_interpolation(info);
-	uint extension = kernel_decode_image_extension(info);
+	uint interpolation = kernel_decode_image_interpolation(info->options);
+	uint extension = kernel_decode_image_extension(info->options);
+
 	/* Actual sampling. */
 	float4 r;
 	int ix, iy, nix, niy;
@@ -150,14 +165,17 @@ ccl_device float4 kernel_tex_image_interp(KernelGlobals *kg, int id, float x, fl
 
 ccl_device float4 kernel_tex_image_interp_3d(KernelGlobals *kg, int id, float x, float y, float z)
 {
-	uint4 info = kernel_tex_fetch(__tex_image_packed_info, id*2);
-	uint width = info.x;
-	uint height = info.y;
-	uint offset = info.z;
-	uint depth = kernel_tex_fetch(__tex_image_packed_info, id*2+1).x;
+	const ccl_global tex_info_t *info = kernel_tex_info(kg, id);
+
+	uint width = info->width;
+	uint height = info->height;
+	uint offset = 0;
+	uint depth = info->depth;
+
 	/* Decode image options. */
-	uint interpolation = kernel_decode_image_interpolation(info);
-	uint extension = kernel_decode_image_extension(info);
+	uint interpolation = kernel_decode_image_interpolation(info->options);
+	uint extension = kernel_decode_image_extension(info->options);
+
 	/* Actual sampling. */
 	float4 r;
 	int ix, iy, iz, nix, niy, niz;
diff --git a/intern/cycles/kernel/kernel_light.h b/intern/cycles/kernel/kernel_light.h
index 9baa9d54957..c806deee8e7 100644
--- a/intern/cycles/kernel/kernel_light.h
+++ b/intern/cycles/kernel/kernel_light.h
@@ -396,11 +396,13 @@ ccl_device_inline float3 background_light_sample(KernelGlobals *kg,
 					     + (1.0f - portal_sampling_pdf) * cdf_pdf);
 				}
 				return D;
-			} else {
+			}
+			else {
 				/* Sample map, but with nonzero portal_sampling_pdf for MIS. */
 				randu = (randu - portal_sampling_pdf) / (1.0f - portal_sampling_pdf);
 			}
-		} else {
+		}
+		else {
 			/* We can't sample a portal.
 			 * Check if we can sample the map instead.
 			 */
@@ -763,78 +765,280 @@ ccl_device bool lamp_light_eval(KernelGlobals *kg, int lamp, float3 P, float3 D,
 
 /* Triangle Light */
 
-ccl_device void object_transform_light_sample(KernelGlobals *kg, LightSample *ls, int object, float time)
+/* returns true if the triangle is has motion blur or an instancing transform applied */
+ccl_device_inline bool triangle_world_space_vertices(KernelGlobals *kg, int object, int prim, float time, float3 V[3])
 {
+	bool has_motion = false;
+	const int object_flag = kernel_tex_fetch(__object_flag, object);
+
+	if(object_flag & SD_OBJECT_HAS_VERTEX_MOTION && time >= 0.0f) {
+		motion_triangle_vertices(kg, object, prim, time, V);
+		has_motion = true;
+	}
+	else {
+		triangle_vertices(kg, prim, V);
+	}
+
 #ifdef __INSTANCING__
-	/* instance transform */
-	if(!(kernel_tex_fetch(__object_flag, object) & SD_OBJECT_TRANSFORM_APPLIED)) {
+	if(!(object_flag & SD_OBJECT_TRANSFORM_APPLIED)) {
 #  ifdef __OBJECT_MOTION__
-		Transform itfm;
-		Transform tfm = object_fetch_transform_motion_test(kg, object, time, &itfm);
+		Transform tfm = object_fetch_transform_motion_test(kg, object, time, NULL);
 #  else
 		Transform tfm = object_fetch_transform(kg, object, OBJECT_TRANSFORM);
 #  endif
-
-		ls->P = transform_point(&tfm, ls->P);
-		ls->Ng = normalize(transform_direction(&tfm, ls->Ng));
+		V[0] = transform_point(&tfm, V[0]);
+		V[1] = transform_point(&tfm, V[1]);
+		V[2] = transform_point(&tfm, V[2]);
+		has_motion = true;
 	}
 #endif
+	return has_motion;
 }
 
-ccl_device void triangle_light_sample(KernelGlobals *kg, int prim, int object,
-	float randu, float randv, float time, LightSample *ls)
+ccl_device_inline float triangle_light_pdf_area(KernelGlobals *kg, const float3 Ng, const float3 I, float t)
 {
-	float u, v;
+	float pdf = kernel_data.integrator.pdf_triangles;
+	float cos_pi = fabsf(dot(Ng, I));
 
-	/* compute random point in triangle */
-	randu = sqrtf(randu);
+	if(cos_pi == 0.0f)
+		return 0.0f;
+
+	return t*t*pdf/cos_pi;
+}
 
-	u = 1.0f - randu;
-	v = randv*randu;
+ccl_device_forceinline float triangle_light_pdf(KernelGlobals *kg, ShaderData *sd, float t)
+{
+	/* A naive heuristic to decide between costly solid angle sampling
+	 * and simple area sampling, comparing the distance to the triangle plane
+	 * to the length of the edges of the triangle. */
+
+	float3 V[3];
+	bool has_motion = triangle_world_space_vertices(kg, sd->object, sd->prim, sd->time, V);
+
+	const float3 e0 = V[1] - V[0];
+	const float3 e1 = V[2] - V[0];
+	const float3 e2 = V[2] - V[1];
+	const float longest_edge_squared = max(len_squared(e0), max(len_squared(e1), len_squared(e2)));
+	const float3 N = cross(e0, e1);
+	const float distance_to_plane = fabsf(dot(N, sd->I * t))/dot(N, N);
+
+	if(longest_edge_squared > distance_to_plane*distance_to_plane) {
+		/* sd contains the point on the light source
+		 * calculate Px, the point that we're shading */
+		const float3 Px = sd->P + sd->I * t;
+		const float3 v0_p = V[0] - Px;
+		const float3 v1_p = V[1] - Px;
+		const float3 v2_p = V[2] - Px;
+
+		const float3 u01 = safe_normalize(cross(v0_p, v1_p));
+		const float3 u02 = safe_normalize(cross(v0_p, v2_p));
+		const float3 u12 = safe_normalize(cross(v1_p, v2_p));
+
+		const float alpha = fast_acosf(dot(u02, u01));
+		const float beta = fast_acosf(-dot(u01, u12));
+		const float gamma = fast_acosf(dot(u02, u12));
+		const float solid_angle =  alpha + beta + gamma - M_PI_F;
+
+		/* pdf_triangles is calculated over triangle area, but we're not sampling over its area */
+		if(UNLIKELY(solid_angle == 0.0f)) {
+			return 0.0f;
+		}
+		else {
+			float area = 1.0f;
+			if(has_motion) {
+				/* get the center frame vertices, this is what the PDF was calculated from */
+				triangle_world_space_vertices(kg, sd->object, sd->prim, -1.0f, V);
+				area = triangle_area(V[0], V[1], V[2]);
+			}
+			else {
+				area = 0.5f * len(N);
+			}
+			const float pdf = area * kernel_data.integrator.pdf_triangles;
+			return pdf / solid_angle;
+		}
+	}
+	else {
+		float pdf = triangle_light_pdf_area(kg, sd->Ng, sd->I, t);
+		if(has_motion) {
+			const float	area = 0.5f * len(N);
+			if(UNLIKELY(area == 0.0f)) {
+				return 0.0f;
+			}
+			/* scale the PDF.
+			 * area = the area the sample was taken from
+			 * area_pre = the are from which pdf_triangles was calculated from */
+			triangle_world_space_vertices(kg, sd->object, sd->prim, -1.0f, V);
+			const float area_pre = triangle_area(V[0], V[1], V[2]);
+			pdf = pdf * area_pre / area;
+		}
+		return pdf;
+	}
+}
 
-	/* triangle, so get position, normal, shader */
-	triangle_point_normal(kg, object, prim, u, v, &ls->P, &ls->Ng, &ls->shader);
+ccl_device_forceinline void triangle_light_sample(KernelGlobals *kg, int prim, int object,
+	float randu, float randv, float time, LightSample *ls, const float3 P)
+{
+	/* A naive heuristic to decide between costly solid angle sampling
+	 * and simple area sampling, comparing the distance to the triangle plane
+	 * to the length of the edges of the triangle. */
+
+	float3 V[3];
+	bool has_motion = triangle_world_space_vertices(kg, object, prim, time, V);
+
+	const float3 e0 = V[1] - V[0];
+	const float3 e1 = V[2] - V[0];
+	const float3 e2 = V[2] - V[1];
+	const float longest_edge_squared = max(len_squared(e0), max(len_squared(e1), len_squared(e2)));
+	const float3 N0 = cross(e0, e1);
+	float Nl = 0.0f;
+	ls->Ng = safe_normalize_len(N0, &Nl);
+	float area = 0.5f * Nl;
+
+	/* flip normal if necessary */
+	const int object_flag = kernel_tex_fetch(__object_flag, object);
+	if(object_flag & SD_OBJECT_NEGATIVE_SCALE_APPLIED) {
+		ls->Ng = -ls->Ng;
+	}
+	ls->eval_fac = 1.0f;
+	ls->shader = kernel_tex_fetch(__tri_shader, prim);
 	ls->object = object;
 	ls->prim = prim;
 	ls->lamp = LAMP_NONE;
 	ls->shader |= SHADER_USE_MIS;
-	ls->t = 0.0f;
-	ls->u = u;
-	ls->v = v;
 	ls->type = LIGHT_TRIANGLE;
-	ls->eval_fac = 1.0f;
 
-	object_transform_light_sample(kg, ls, object, time);
-}
+	float distance_to_plane = fabsf(dot(N0, V[0] - P)/dot(N0, N0));
+
+	if(longest_edge_squared > distance_to_plane*distance_to_plane) {
+		/* see James Arvo, "Stratified Sampling of Spherical Triangles"
+		 * http://www.graphics.cornell.edu/pubs/1995/Arv95c.pdf */
+
+		/* project the triangle to the unit sphere
+		 * and calculate its edges and angles */
+		const float3 v0_p = V[0] - P;
+		const float3 v1_p = V[1] - P;
+		const float3 v2_p = V[2] - P;
+
+		const float3 u01 = safe_normalize(cross(v0_p, v1_p));
+		const float3 u02 = safe_normalize(cross(v0_p, v2_p));
+		const float3 u12 = safe_normalize(cross(v1_p, v2_p));
+
+		const float3 A = safe_normalize(v0_p);
+		const float3 B = safe_normalize(v1_p);
+		const float3 C = safe_normalize(v2_p);
+
+		const float cos_alpha = dot(u02, u01);
+		const float cos_beta = -dot(u01, u12);
+		const float cos_gamma = dot(u02, u12);
+
+		/* calculate dihedral angles */
+		const float alpha = fast_acosf(cos_alpha);
+		const float beta = fast_acosf(cos_beta);
+		const float gamma = fast_acosf(cos_gamma);
+		/* the area of the unit spherical triangle = solid angle */
+		const float solid_angle =  alpha + beta + gamma - M_PI_F;
+
+		/* precompute a few things
+		 * these could be re-used to take several samples
+		 * as they are independent of randu/randv */
+		const float cos_c = dot(A, B);
+		const float sin_alpha = fast_sinf(alpha);
+		const float product = sin_alpha * cos_c;
+
+		/* Select a random sub-area of the spherical triangle
+		 * and calculate the third vertex C_ of that new triangle */
+		const float phi = randu * solid_angle - alpha;
+		float s, t;
+		fast_sincosf(phi, &s, &t);
+		const float u = t - cos_alpha;
+		const float v = s + product;
+
+		const float3 U = safe_normalize(C - dot(C, A) * A);
+
+		float q = 1.0f;
+		const float det = ((v * s + u * t) * sin_alpha);
+		if(det != 0.0f) {
+			q = ((v * t - u * s) * cos_alpha - v) / det;
+		}
+		const float temp = max(1.0f - q*q, 0.0f);
 
-ccl_device float triangle_light_pdf(KernelGlobals *kg,
-	const float3 Ng, const float3 I, float t)
-{
-	float pdf = kernel_data.integrator.pdf_triangles;
-	float cos_pi = fabsf(dot(Ng, I));
+		const float3 C_ = safe_normalize(q * A + sqrtf(temp) * U);
 
-	if(cos_pi == 0.0f)
-		return 0.0f;
-	
-	return t*t*pdf/cos_pi;
+		/* Finally, select a random point along the edge of the new triangle
+		 * That point on the spherical triangle is the sampled ray direction */
+		const float z = 1.0f - randv * (1.0f - dot(C_, B));
+		ls->D = z * B + safe_sqrtf(1.0f - z*z) * safe_normalize(C_ - dot(C_, B) * B);
+
+		/* calculate intersection with the planar triangle */
+		if(!ray_triangle_intersect(P, ls->D, FLT_MAX,
+#if defined(__KERNEL_SSE2__) && defined(__KERNEL_SSE__)
+		                           (ssef*)V,
+#else
+		                           V[0], V[1], V[2],
+#endif
+		                           &ls->u, &ls->v, &ls->t)) {
+			ls->pdf = 0.0f;
+			return;
+		}
+
+		ls->P = P + ls->D * ls->t;
+
+		/* pdf_triangles is calculated over triangle area, but we're sampling over solid angle */
+		if(UNLIKELY(solid_angle == 0.0f)) {
+			ls->pdf = 0.0f;
+			return;
+		}
+		else {
+			if(has_motion) {
+				/* get the center frame vertices, this is what the PDF was calculated from */
+				triangle_world_space_vertices(kg, object, prim, -1.0f, V);
+				area = triangle_area(V[0], V[1], V[2]);
+			}
+			const float pdf = area * kernel_data.integrator.pdf_triangles;
+			ls->pdf = pdf / solid_angle;
+		}
+	}
+	else {
+		/* compute random point in triangle */
+		randu = sqrtf(randu);
+
+		const float u = 1.0f - randu;
+		const float v = randv*randu;
+		const float t = 1.0f - u - v;
+		ls->P = u * V[0] + v * V[1] + t * V[2];
+		/* compute incoming direction, distance and pdf */
+		ls->D = normalize_len(ls->P - P, &ls->t);
+		ls->pdf = triangle_light_pdf_area(kg, ls->Ng, -ls->D, ls->t);
+		if(has_motion && area != 0.0f) {
+			/* scale the PDF.
+			 * area = the area the sample was taken from
+			 * area_pre = the are from which pdf_triangles was calculated from */
+			triangle_world_space_vertices(kg, object, prim, -1.0f, V);
+			const float area_pre = triangle_area(V[0], V[1], V[2]);
+			ls->pdf = ls->pdf * area_pre / area;
+		}
+		ls->u = u;
+		ls->v = v;
+	}
 }
 
 /* Light Distribution */
 
-ccl_device int light_distribution_sample(KernelGlobals *kg, float randt)
+ccl_device int light_distribution_sample(KernelGlobals *kg, float *randu)
 {
-	/* this is basically std::upper_bound as used by pbrt, to find a point light or
+	/* This is basically std::upper_bound as used by pbrt, to find a point light or
 	 * triangle to emit from, proportional to area. a good improvement would be to
 	 * also sample proportional to power, though it's not so well defined with
-	 * OSL shaders. */
+	 * arbitrary shaders. */
 	int first = 0;
 	int len = kernel_data.integrator.num_distribution + 1;
+	float r = *randu;
 
 	while(len > 0) {
 		int half_len = len >> 1;
 		int middle = first + half_len;
 
-		if(randt < kernel_tex_fetch(__light_distribution, middle).x) {
+		if(r < kernel_tex_fetch(__light_distribution, middle).x) {
 			len = half_len;
 		}
 		else {
@@ -843,9 +1047,17 @@ ccl_device int light_distribution_sample(KernelGlobals *kg, float randt)
 		}
 	}
 
-	/* clamping should not be needed but float rounding errors seem to
-	 * make this fail on rare occasions */
-	return clamp(first-1, 0, kernel_data.integrator.num_distribution-1);
+	/* Clamping should not be needed but float rounding errors seem to
+	 * make this fail on rare occasions. */
+	int index = clamp(first-1, 0, kernel_data.integrator.num_distribution-1);
+
+	/* Rescale to reuse random number. this helps the 2D samples within
+	 * each area light be stratified as well. */
+	float distr_min = kernel_tex_fetch(__light_distribution, index).x;
+	float distr_max = kernel_tex_fetch(__light_distribution, index+1).x;
+	*randu = (r - distr_min)/(distr_max - distr_min);
+
+	return index;
 }
 
 /* Generic Light */
@@ -857,7 +1069,6 @@ ccl_device bool light_select_reached_max_bounces(KernelGlobals *kg, int index, i
 }
 
 ccl_device_noinline bool light_sample(KernelGlobals *kg,
-                                      float randt,
                                       float randu,
                                       float randv,
                                       float time,
@@ -866,7 +1077,7 @@ ccl_device_noinline bool light_sample(KernelGlobals *kg,
                                       LightSample *ls)
 {
 	/* sample index */
-	int index = light_distribution_sample(kg, randt);
+	int index = light_distribution_sample(kg, &randu);
 
 	/* fetch light data */
 	float4 l = kernel_tex_fetch(__light_distribution, index);
@@ -876,10 +1087,7 @@ ccl_device_noinline bool light_sample(KernelGlobals *kg,
 		int object = __float_as_int(l.w);
 		int shader_flag = __float_as_int(l.z);
 
-		triangle_light_sample(kg, prim, object, randu, randv, time, ls);
-		/* compute incoming direction, distance and pdf */
-		ls->D = normalize_len(ls->P - P, &ls->t);
-		ls->pdf = triangle_light_pdf(kg, ls->Ng, -ls->D, ls->t);
+		triangle_light_sample(kg, prim, object, randu, randv, time, ls, P);
 		ls->shader |= shader_flag;
 		return (ls->pdf > 0.0f);
 	}
diff --git a/intern/cycles/kernel/kernel_passes.h b/intern/cycles/kernel/kernel_passes.h
index 9cd7ffb181d..fff7f4cfdb7 100644
--- a/intern/cycles/kernel/kernel_passes.h
+++ b/intern/cycles/kernel/kernel_passes.h
@@ -194,8 +194,38 @@ ccl_device_inline void kernel_update_denoising_features(KernelGlobals *kg,
 #endif  /* __DENOISING_FEATURES__ */
 }
 
+#ifdef __KERNEL_DEBUG__
+ccl_device_inline void kernel_write_debug_passes(KernelGlobals *kg,
+                                                 ccl_global float *buffer,
+                                                 PathRadiance *L,
+                                                 int sample)
+{
+	int flag = kernel_data.film.pass_flag;
+	if(flag & PASS_BVH_TRAVERSED_NODES) {
+		kernel_write_pass_float(buffer + kernel_data.film.pass_bvh_traversed_nodes,
+		                        sample,
+		                        L->debug_data.num_bvh_traversed_nodes);
+	}
+	if(flag & PASS_BVH_TRAVERSED_INSTANCES) {
+		kernel_write_pass_float(buffer + kernel_data.film.pass_bvh_traversed_instances,
+		                        sample,
+		                        L->debug_data.num_bvh_traversed_instances);
+	}
+	if(flag & PASS_BVH_INTERSECTIONS) {
+		kernel_write_pass_float(buffer + kernel_data.film.pass_bvh_intersections,
+		                        sample,
+		                        L->debug_data.num_bvh_intersections);
+	}
+	if(flag & PASS_RAY_BOUNCES) {
+		kernel_write_pass_float(buffer + kernel_data.film.pass_ray_bounces,
+		                        sample,
+		                        L->debug_data.num_ray_bounces);
+	}
+}
+#endif /* __KERNEL_DEBUG__ */
+
 ccl_device_inline void kernel_write_data_passes(KernelGlobals *kg, ccl_global float *buffer, PathRadiance *L,
-	ShaderData *sd, int sample, ccl_addr_space PathState *state, float3 throughput)
+	ShaderData *sd, ccl_addr_space PathState *state, float3 throughput)
 {
 #ifdef __PASSES__
 	int path_flag = state->flag;
@@ -213,6 +243,7 @@ ccl_device_inline void kernel_write_data_passes(KernelGlobals *kg, ccl_global fl
 		   kernel_data.film.pass_alpha_threshold == 0.0f ||
 		   average(shader_bsdf_alpha(kg, sd)) >= kernel_data.film.pass_alpha_threshold)
 		{
+			int sample = state->sample;
 
 			if(sample == 0) {
 				if(flag & PASS_DEPTH) {
@@ -230,7 +261,7 @@ ccl_device_inline void kernel_write_data_passes(KernelGlobals *kg, ccl_global fl
 			}
 
 			if(flag & PASS_NORMAL) {
-				float3 normal = sd->N;
+				float3 normal = shader_bsdf_average_normal(kg, sd);
 				kernel_write_pass_float3(buffer + kernel_data.film.pass_normal, sample, normal);
 			}
 			if(flag & PASS_UV) {
@@ -334,19 +365,11 @@ ccl_device_inline void kernel_write_light_passes(KernelGlobals *kg, ccl_global f
 }
 
 ccl_device_inline void kernel_write_result(KernelGlobals *kg, ccl_global float *buffer,
-	int sample, PathRadiance *L, float alpha, bool is_shadow_catcher)
+	int sample, PathRadiance *L)
 {
 	if(L) {
-		float3 L_sum;
-#ifdef __SHADOW_TRICKS__
-		if(is_shadow_catcher) {
-			L_sum = path_radiance_sum_shadowcatcher(kg, L, &alpha);
-		}
-		else
-#endif  /* __SHADOW_TRICKS__ */
-		{
-			L_sum = path_radiance_clamp_and_sum(kg, L);
-		}
+		float alpha;
+		float3 L_sum = path_radiance_clamp_and_sum(kg, L, &alpha);
 
 		kernel_write_pass_float4(buffer, sample, make_float4(L_sum.x, L_sum.y, L_sum.z, alpha));
 
@@ -361,16 +384,7 @@ ccl_device_inline void kernel_write_result(KernelGlobals *kg, ccl_global float *
 #  endif
 			if(kernel_data.film.pass_denoising_clean) {
 				float3 noisy, clean;
-#ifdef __SHADOW_TRICKS__
-				if(is_shadow_catcher) {
-					noisy = L_sum;
-					clean = make_float3(0.0f, 0.0f, 0.0f);
-				}
-				else
-#endif  /* __SHADOW_TRICKS__ */
-				{
-					path_radiance_split_denoising(kg, L, &noisy, &clean);
-				}
+				path_radiance_split_denoising(kg, L, &noisy, &clean);
 				kernel_write_pass_float3_variance(buffer + kernel_data.film.pass_denoising_data + DENOISING_PASS_COLOR,
 				                                  sample, noisy);
 				kernel_write_pass_float3_unaligned(buffer + kernel_data.film.pass_denoising_clean,
@@ -389,6 +403,11 @@ ccl_device_inline void kernel_write_result(KernelGlobals *kg, ccl_global float *
 			                                 sample, L->denoising_depth);
 		}
 #endif  /* __DENOISING_FEATURES__ */
+
+
+#ifdef __KERNEL_DEBUG__
+		kernel_write_debug_passes(kg, buffer, L, sample);
+#endif
 	}
 	else {
 		kernel_write_pass_float4(buffer, sample, make_float4(0.0f, 0.0f, 0.0f, 0.0f));
diff --git a/intern/cycles/kernel/kernel_path.h b/intern/cycles/kernel/kernel_path.h
index fc093ad8319..793fede0deb 100644
--- a/intern/cycles/kernel/kernel_path.h
+++ b/intern/cycles/kernel/kernel_path.h
@@ -48,25 +48,308 @@
 #include "kernel/kernel_path_volume.h"
 #include "kernel/kernel_path_subsurface.h"
 
+CCL_NAMESPACE_BEGIN
+
+ccl_device_forceinline bool kernel_path_scene_intersect(
+	KernelGlobals *kg,
+	ccl_addr_space PathState *state,
+	Ray *ray,
+	Intersection *isect,
+	PathRadiance *L)
+{
+	uint visibility = path_state_ray_visibility(kg, state);
+
+#ifdef __HAIR__
+	float difl = 0.0f, extmax = 0.0f;
+	uint lcg_state = 0;
+
+	if(kernel_data.bvh.have_curves) {
+		if((kernel_data.cam.resolution == 1) && (state->flag & PATH_RAY_CAMERA)) {
+			float3 pixdiff = ray->dD.dx + ray->dD.dy;
+			/*pixdiff = pixdiff - dot(pixdiff, ray.D)*ray.D;*/
+			difl = kernel_data.curve.minimum_width * len(pixdiff) * 0.5f;
+		}
+
+		extmax = kernel_data.curve.maximum_width;
+		lcg_state = lcg_state_init_addrspace(state, 0x51633e2d);
+	}
+
+	if(path_state_ao_bounce(kg, state)) {
+		visibility = PATH_RAY_SHADOW;
+		ray->t = kernel_data.background.ao_distance;
+	}
+
+	bool hit = scene_intersect(kg, *ray, visibility, isect, &lcg_state, difl, extmax);
+#else
+	bool hit = scene_intersect(kg, *ray, visibility, isect, NULL, 0.0f, 0.0f);
+#endif  /* __HAIR__ */
+
 #ifdef __KERNEL_DEBUG__
-#  include "kernel/kernel_debug.h"
-#endif
+	if(state->flag & PATH_RAY_CAMERA) {
+		L->debug_data.num_bvh_traversed_nodes += isect->num_traversed_nodes;
+		L->debug_data.num_bvh_traversed_instances += isect->num_traversed_instances;
+		L->debug_data.num_bvh_intersections += isect->num_intersections;
+	}
+	L->debug_data.num_ray_bounces++;
+#endif  /* __KERNEL_DEBUG__ */
 
-CCL_NAMESPACE_BEGIN
+	return hit;
+}
+
+ccl_device_forceinline void kernel_path_lamp_emission(
+	KernelGlobals *kg,
+	ccl_addr_space PathState *state,
+	Ray *ray,
+	float3 throughput,
+	ccl_addr_space Intersection *isect,
+	ShaderData *emission_sd,
+	PathRadiance *L)
+{
+#ifdef __LAMP_MIS__
+	if(kernel_data.integrator.use_lamp_mis && !(state->flag & PATH_RAY_CAMERA)) {
+		/* ray starting from previous non-transparent bounce */
+		Ray light_ray;
+
+		light_ray.P = ray->P - state->ray_t*ray->D;
+		state->ray_t += isect->t;
+		light_ray.D = ray->D;
+		light_ray.t = state->ray_t;
+		light_ray.time = ray->time;
+		light_ray.dD = ray->dD;
+		light_ray.dP = ray->dP;
+
+		/* intersect with lamp */
+		float3 emission;
+
+		if(indirect_lamp_emission(kg, emission_sd, state, &light_ray, &emission))
+			path_radiance_accum_emission(L, state, throughput, emission);
+	}
+#endif  /* __LAMP_MIS__ */
+}
+
+ccl_device_forceinline void kernel_path_background(
+	KernelGlobals *kg,
+	ccl_addr_space PathState *state,
+	ccl_addr_space Ray *ray,
+	float3 throughput,
+	ShaderData *emission_sd,
+	PathRadiance *L)
+{
+	/* eval background shader if nothing hit */
+	if(kernel_data.background.transparent && (state->flag & PATH_RAY_CAMERA)) {
+		L->transparent += average(throughput);
+
+#ifdef __PASSES__
+		if(!(kernel_data.film.pass_flag & PASS_BACKGROUND))
+#endif  /* __PASSES__ */
+			return;
+	}
+
+#ifdef __BACKGROUND__
+	/* sample background shader */
+	float3 L_background = indirect_background(kg, emission_sd, state, ray);
+	path_radiance_accum_background(L, state, throughput, L_background);
+#endif  /* __BACKGROUND__ */
+}
+
+#ifndef __SPLIT_KERNEL__
+
+#ifdef __VOLUME__
+ccl_device_forceinline VolumeIntegrateResult kernel_path_volume(
+	KernelGlobals *kg,
+	ShaderData *sd,
+	PathState *state,
+	Ray *ray,
+	float3 *throughput,
+	ccl_addr_space Intersection *isect,
+	bool hit,
+	ShaderData *emission_sd,
+	PathRadiance *L)
+{
+	/* Sanitize volume stack. */
+	if(!hit) {
+		kernel_volume_clean_stack(kg, state->volume_stack);
+	}
+	/* volume attenuation, emission, scatter */
+	if(state->volume_stack[0].shader != SHADER_NONE) {
+		Ray volume_ray = *ray;
+		volume_ray.t = (hit)? isect->t: FLT_MAX;
+
+		bool heterogeneous = volume_stack_is_heterogeneous(kg, state->volume_stack);
+
+#  ifdef __VOLUME_DECOUPLED__
+		int sampling_method = volume_stack_sampling_method(kg, state->volume_stack);
+		bool direct = (state->flag & PATH_RAY_CAMERA) != 0;
+		bool decoupled = kernel_volume_use_decoupled(kg, heterogeneous, direct, sampling_method);
+
+		if(decoupled) {
+			/* cache steps along volume for repeated sampling */
+			VolumeSegment volume_segment;
+
+			shader_setup_from_volume(kg, sd, &volume_ray);
+			kernel_volume_decoupled_record(kg, state,
+				&volume_ray, sd, &volume_segment, heterogeneous);
+
+			volume_segment.sampling_method = sampling_method;
+
+			/* emission */
+			if(volume_segment.closure_flag & SD_EMISSION)
+				path_radiance_accum_emission(L, state, *throughput, volume_segment.accum_emission);
+
+			/* scattering */
+			VolumeIntegrateResult result = VOLUME_PATH_ATTENUATED;
+
+			if(volume_segment.closure_flag & SD_SCATTER) {
+				int all = kernel_data.integrator.sample_all_lights_indirect;
+
+				/* direct light sampling */
+				kernel_branched_path_volume_connect_light(kg, sd,
+					emission_sd, *throughput, state, L, all,
+					&volume_ray, &volume_segment);
+
+				/* indirect sample. if we use distance sampling and take just
+				 * one sample for direct and indirect light, we could share
+				 * this computation, but makes code a bit complex */
+				float rphase = path_state_rng_1D(kg, state, PRNG_PHASE_CHANNEL);
+				float rscatter = path_state_rng_1D(kg, state, PRNG_SCATTER_DISTANCE);
+
+				result = kernel_volume_decoupled_scatter(kg,
+					state, &volume_ray, sd, throughput,
+					rphase, rscatter, &volume_segment, NULL, true);
+			}
+
+			/* free cached steps */
+			kernel_volume_decoupled_free(kg, &volume_segment);
+
+			if(result == VOLUME_PATH_SCATTERED) {
+				if(kernel_path_volume_bounce(kg, sd, throughput, state, &L->state, ray))
+					return VOLUME_PATH_SCATTERED;
+				else
+					return VOLUME_PATH_MISSED;
+			}
+			else {
+				*throughput *= volume_segment.accum_transmittance;
+			}
+		}
+		else
+#  endif  /* __VOLUME_DECOUPLED__ */
+		{
+			/* integrate along volume segment with distance sampling */
+			VolumeIntegrateResult result = kernel_volume_integrate(
+				kg, state, sd, &volume_ray, L, throughput, heterogeneous);
+
+#  ifdef __VOLUME_SCATTER__
+			if(result == VOLUME_PATH_SCATTERED) {
+				/* direct lighting */
+				kernel_path_volume_connect_light(kg, sd, emission_sd, *throughput, state, L);
+
+				/* indirect light bounce */
+				if(kernel_path_volume_bounce(kg, sd, throughput, state, &L->state, ray))
+					return VOLUME_PATH_SCATTERED;
+				else
+					return VOLUME_PATH_MISSED;
+			}
+#  endif  /* __VOLUME_SCATTER__ */
+		}
+	}
+
+	return VOLUME_PATH_ATTENUATED;
+}
+#endif  /* __VOLUME__ */
+
+#endif /* __SPLIT_KERNEL__ */
+
+ccl_device_forceinline bool kernel_path_shader_apply(
+	KernelGlobals *kg,
+	ShaderData *sd,
+	ccl_addr_space PathState *state,
+	ccl_addr_space Ray *ray,
+	float3 throughput,
+	ShaderData *emission_sd,
+	PathRadiance *L,
+	ccl_global float *buffer)
+{
+#ifdef __SHADOW_TRICKS__
+	if((sd->object_flag & SD_OBJECT_SHADOW_CATCHER)) {
+		if(state->flag & PATH_RAY_CAMERA) {
+			state->flag |= (PATH_RAY_SHADOW_CATCHER |
+						   PATH_RAY_STORE_SHADOW_INFO);
+
+			float3 bg = make_float3(0.0f, 0.0f, 0.0f);
+			if(!kernel_data.background.transparent) {
+				bg = indirect_background(kg, emission_sd, state, ray);
+			}
+			path_radiance_accum_shadowcatcher(L, throughput, bg);
+		}
+	}
+	else if(state->flag & PATH_RAY_SHADOW_CATCHER) {
+		/* Only update transparency after shadow catcher bounce. */
+		L->shadow_transparency *=
+				average(shader_bsdf_transparency(kg, sd));
+	}
+#endif  /* __SHADOW_TRICKS__ */
+
+	/* holdout */
+#ifdef __HOLDOUT__
+	if(((sd->flag & SD_HOLDOUT) ||
+		(sd->object_flag & SD_OBJECT_HOLDOUT_MASK)) &&
+	   (state->flag & PATH_RAY_CAMERA))
+	{
+		if(kernel_data.background.transparent) {
+			float3 holdout_weight;
+			if(sd->object_flag & SD_OBJECT_HOLDOUT_MASK) {
+				holdout_weight = make_float3(1.0f, 1.0f, 1.0f);
+			}
+			else {
+				holdout_weight = shader_holdout_eval(kg, sd);
+			}
+			/* any throughput is ok, should all be identical here */
+			L->transparent += average(holdout_weight*throughput);
+		}
+
+		if(sd->object_flag & SD_OBJECT_HOLDOUT_MASK) {
+			return false;
+		}
+	}
+#endif  /* __HOLDOUT__ */
+
+	/* holdout mask objects do not write data passes */
+	kernel_write_data_passes(kg, buffer, L, sd, state, throughput);
+
+	/* blurring of bsdf after bounces, for rays that have a small likelihood
+	 * of following this particular path (diffuse, rough glossy) */
+	if(kernel_data.integrator.filter_glossy != FLT_MAX) {
+		float blur_pdf = kernel_data.integrator.filter_glossy*state->min_ray_pdf;
+
+		if(blur_pdf < 1.0f) {
+			float blur_roughness = sqrtf(1.0f - blur_pdf)*0.5f;
+			shader_bsdf_blur(kg, sd, blur_roughness);
+		}
+	}
+
+#ifdef __EMISSION__
+	/* emission */
+	if(sd->flag & SD_EMISSION) {
+		float3 emission = indirect_primitive_emission(kg, sd, sd->ray_length, state->flag, state->ray_pdf);
+		path_radiance_accum_emission(L, state, throughput, emission);
+	}
+#endif  /* __EMISSION__ */
+
+	return true;
+}
 
 ccl_device_noinline void kernel_path_ao(KernelGlobals *kg,
                                         ShaderData *sd,
                                         ShaderData *emission_sd,
                                         PathRadiance *L,
                                         ccl_addr_space PathState *state,
-                                        RNG *rng,
                                         float3 throughput,
                                         float3 ao_alpha)
 {
 	/* todo: solve correlation */
 	float bsdf_u, bsdf_v;
 
-	path_state_rng_2D(kg, rng, state, PRNG_BSDF_U, &bsdf_u, &bsdf_v);
+	path_state_rng_2D(kg, state, PRNG_BSDF_U, &bsdf_u, &bsdf_v);
 
 	float ao_factor = kernel_data.background.ao_factor;
 	float3 ao_N;
@@ -83,13 +366,11 @@ ccl_device_noinline void kernel_path_ao(KernelGlobals *kg,
 		light_ray.P = ray_offset(sd->P, sd->Ng);
 		light_ray.D = ao_D;
 		light_ray.t = kernel_data.background.ao_distance;
-#ifdef __OBJECT_MOTION__
 		light_ray.time = sd->time;
-#endif  /* __OBJECT_MOTION__ */
 		light_ray.dP = sd->dP;
 		light_ray.dD = differential3_zero();
 
-		if(!shadow_blocked(kg, emission_sd, state, &light_ray, &ao_shadow)) {
+		if(!shadow_blocked(kg, sd, emission_sd, state, &light_ray, &ao_shadow)) {
 			path_radiance_accum_ao(L, state, throughput, ao_alpha, ao_bsdf, ao_shadow);
 		}
 		else {
@@ -100,265 +381,85 @@ ccl_device_noinline void kernel_path_ao(KernelGlobals *kg,
 
 #ifndef __SPLIT_KERNEL__
 
+#if defined(__BRANCHED_PATH__) || defined(__BAKING__)
+
 ccl_device void kernel_path_indirect(KernelGlobals *kg,
                                      ShaderData *sd,
                                      ShaderData *emission_sd,
-                                     RNG *rng,
                                      Ray *ray,
                                      float3 throughput,
-                                     int num_samples,
                                      PathState *state,
                                      PathRadiance *L)
 {
 	/* path iteration */
 	for(;;) {
-		/* intersect scene */
+		/* Find intersection with objects in scene. */
 		Intersection isect;
-		uint visibility = path_state_ray_visibility(kg, state);
-		if(state->bounce > kernel_data.integrator.ao_bounces) {
-			visibility = PATH_RAY_SHADOW;
-			ray->t = kernel_data.background.ao_distance;
-		}
-		bool hit = scene_intersect(kg,
-		                           *ray,
-		                           visibility,
-		                           &isect,
-		                           NULL,
-		                           0.0f, 0.0f);
+		bool hit = kernel_path_scene_intersect(kg, state, ray, &isect, L);
 
-#ifdef __LAMP_MIS__
-		if(kernel_data.integrator.use_lamp_mis && !(state->flag & PATH_RAY_CAMERA)) {
-			/* ray starting from previous non-transparent bounce */
-			Ray light_ray;
-
-			light_ray.P = ray->P - state->ray_t*ray->D;
-			state->ray_t += isect.t;
-			light_ray.D = ray->D;
-			light_ray.t = state->ray_t;
-			light_ray.time = ray->time;
-			light_ray.dD = ray->dD;
-			light_ray.dP = ray->dP;
-
-			/* intersect with lamp */
-			float3 emission;
-			if(indirect_lamp_emission(kg, emission_sd, state, &light_ray, &emission)) {
-				path_radiance_accum_emission(L,
-				                             throughput,
-				                             emission,
-				                             state->bounce);
-			}
-		}
-#endif  /* __LAMP_MIS__ */
+		/* Find intersection with lamps and compute emission for MIS. */
+		kernel_path_lamp_emission(kg, state, ray, throughput, &isect, emission_sd, L);
 
 #ifdef __VOLUME__
-		/* Sanitize volume stack. */
-		if(!hit) {
-			kernel_volume_clean_stack(kg, state->volume_stack);
-		}
-		/* volume attenuation, emission, scatter */
-		if(state->volume_stack[0].shader != SHADER_NONE) {
-			Ray volume_ray = *ray;
-			volume_ray.t = (hit)? isect.t: FLT_MAX;
-
-			bool heterogeneous =
-			        volume_stack_is_heterogeneous(kg,
-			                                      state->volume_stack);
-
-#  ifdef __VOLUME_DECOUPLED__
-			int sampling_method =
-			        volume_stack_sampling_method(kg,
-			                                     state->volume_stack);
-			bool decoupled = kernel_volume_use_decoupled(kg, heterogeneous, false, sampling_method);
-
-			if(decoupled) {
-				/* cache steps along volume for repeated sampling */
-				VolumeSegment volume_segment;
-
-				shader_setup_from_volume(kg,
-				                         sd,
-				                         &volume_ray);
-				kernel_volume_decoupled_record(kg,
-				                               state,
-				                               &volume_ray,
-				                               sd,
-				                               &volume_segment,
-				                               heterogeneous);
-
-				volume_segment.sampling_method = sampling_method;
-
-				/* emission */
-				if(volume_segment.closure_flag & SD_EMISSION) {
-					path_radiance_accum_emission(L,
-					                             throughput,
-					                             volume_segment.accum_emission,
-					                             state->bounce);
-				}
-
-				/* scattering */
-				VolumeIntegrateResult result = VOLUME_PATH_ATTENUATED;
-
-				if(volume_segment.closure_flag & SD_SCATTER) {
-					int all = kernel_data.integrator.sample_all_lights_indirect;
-
-					/* direct light sampling */
-					kernel_branched_path_volume_connect_light(kg,
-					                                          rng,
-					                                          sd,
-					                                          emission_sd,
-					                                          throughput,
-					                                          state,
-					                                          L,
-					                                          all,
-					                                          &volume_ray,
-					                                          &volume_segment);
-
-					/* indirect sample. if we use distance sampling and take just
-					 * one sample for direct and indirect light, we could share
-					 * this computation, but makes code a bit complex */
-					float rphase = path_state_rng_1D_for_decision(kg, rng, state, PRNG_PHASE);
-					float rscatter = path_state_rng_1D_for_decision(kg, rng, state, PRNG_SCATTER_DISTANCE);
-
-					result = kernel_volume_decoupled_scatter(kg,
-					                                         state,
-					                                         &volume_ray,
-					                                         sd,
-					                                         &throughput,
-					                                         rphase,
-					                                         rscatter,
-					                                         &volume_segment,
-					                                         NULL,
-					                                         true);
-				}
-
-				/* free cached steps */
-				kernel_volume_decoupled_free(kg, &volume_segment);
-
-				if(result == VOLUME_PATH_SCATTERED) {
-					if(kernel_path_volume_bounce(kg,
-					                             rng,
-					                             sd,
-					                             &throughput,
-					                             state,
-					                             L,
-					                             ray))
-					{
-						continue;
-					}
-					else {
-						break;
-					}
-				}
-				else {
-					throughput *= volume_segment.accum_transmittance;
-				}
-			}
-			else
-#  endif  /* __VOLUME_DECOUPLED__ */
-			{
-				/* integrate along volume segment with distance sampling */
-				VolumeIntegrateResult result = kernel_volume_integrate(
-					kg, state, sd, &volume_ray, L, &throughput, rng, heterogeneous);
-
-#  ifdef __VOLUME_SCATTER__
-				if(result == VOLUME_PATH_SCATTERED) {
-					/* direct lighting */
-					kernel_path_volume_connect_light(kg,
-					                                 rng,
-					                                 sd,
-					                                 emission_sd,
-					                                 throughput,
-					                                 state,
-					                                 L);
-
-					/* indirect light bounce */
-					if(kernel_path_volume_bounce(kg,
-					                             rng,
-					                             sd,
-					                             &throughput,
-					                             state,
-					                             L,
-					                             ray))
-					{
-						continue;
-					}
-					else {
-						break;
-					}
-				}
-#  endif  /* __VOLUME_SCATTER__ */
-			}
+		/* Volume integration. */
+		VolumeIntegrateResult result = kernel_path_volume(kg,
+		                                                   sd,
+		                                                   state,
+		                                                   ray,
+		                                                   &throughput,
+		                                                   &isect,
+		                                                   hit,
+		                                                   emission_sd,
+		                                                   L);
+
+		if(result == VOLUME_PATH_SCATTERED) {
+			continue;
+		}
+		else if(result == VOLUME_PATH_MISSED) {
+			break;
 		}
-#endif  /* __VOLUME__ */
+#endif /* __VOLUME__*/
 
+		/* Shade background. */
 		if(!hit) {
-#ifdef __BACKGROUND__
-			/* sample background shader */
-			float3 L_background = indirect_background(kg, emission_sd, state, ray);
-			path_radiance_accum_background(L,
-			                               state,
-			                               throughput,
-			                               L_background);
-#endif  /* __BACKGROUND__ */
-
+			kernel_path_background(kg, state, ray, throughput, emission_sd, L);
 			break;
 		}
-		else if(state->bounce > kernel_data.integrator.ao_bounces) {
+		else if(path_state_ao_bounce(kg, state)) {
 			break;
 		}
 
-		/* setup shading */
+		/* Setup and evaluate shader. */
 		shader_setup_from_ray(kg,
 		                      sd,
 		                      &isect,
 		                      ray);
-		float rbsdf = path_state_rng_1D_for_decision(kg, rng, state, PRNG_BSDF);
-		shader_eval_surface(kg, sd, rng, state, rbsdf, state->flag, SHADER_CONTEXT_INDIRECT);
-#ifdef __BRANCHED_PATH__
-		shader_merge_closures(sd);
-#endif  /* __BRANCHED_PATH__ */
-
-#ifdef __SHADOW_TRICKS__
-		if(!(sd->object_flag & SD_OBJECT_SHADOW_CATCHER)) {
-			state->flag &= ~PATH_RAY_SHADOW_CATCHER_ONLY;
-		}
-#endif  /* __SHADOW_TRICKS__ */
-
-		/* blurring of bsdf after bounces, for rays that have a small likelihood
-		 * of following this particular path (diffuse, rough glossy) */
-		if(kernel_data.integrator.filter_glossy != FLT_MAX) {
-			float blur_pdf = kernel_data.integrator.filter_glossy*state->min_ray_pdf;
-
-			if(blur_pdf < 1.0f) {
-				float blur_roughness = sqrtf(1.0f - blur_pdf)*0.5f;
-				shader_bsdf_blur(kg, sd, blur_roughness);
-			}
-		}
-
-#ifdef __EMISSION__
-		/* emission */
-		if(sd->flag & SD_EMISSION) {
-			float3 emission = indirect_primitive_emission(kg,
-			                                              sd,
-			                                              isect.t,
-			                                              state->flag,
-			                                              state->ray_pdf);
-			path_radiance_accum_emission(L, throughput, emission, state->bounce);
+		shader_eval_surface(kg, sd, state, state->flag);
+		shader_prepare_closures(sd, state);
+
+		/* Apply shadow catcher, holdout, emission. */
+		if(!kernel_path_shader_apply(kg,
+		                             sd,
+		                             state,
+		                             ray,
+		                             throughput,
+		                             emission_sd,
+		                             L,
+		                             NULL))
+		{
+			break;
 		}
-#endif  /* __EMISSION__ */
 
 		/* path termination. this is a strange place to put the termination, it's
 		 * mainly due to the mixed in MIS that we use. gives too many unneeded
 		 * shader evaluations, only need emission if we are going to terminate */
-		float probability =
-		        path_state_terminate_probability(kg,
-		                                         state,
-		                                         throughput*num_samples);
+		float probability = path_state_continuation_probability(kg, state, throughput);
 
 		if(probability == 0.0f) {
 			break;
 		}
 		else if(probability != 1.0f) {
-			float terminate = path_state_rng_1D_for_decision(kg, rng, state, PRNG_TERMINATE);
+			float terminate = path_state_rng_1D(kg, state, PRNG_TERMINATE);
 
 			if(terminate >= probability)
 				break;
@@ -371,7 +472,7 @@ ccl_device void kernel_path_indirect(KernelGlobals *kg,
 #ifdef __AO__
 		/* ambient occlusion */
 		if(kernel_data.integrator.use_ambient_occlusion || (sd->flag & SD_AO)) {
-			kernel_path_ao(kg, sd, emission_sd, L, state, rng, throughput, make_float3(0.0f, 0.0f, 0.0f));
+			kernel_path_ao(kg, sd, emission_sd, L, state, throughput, make_float3(0.0f, 0.0f, 0.0f));
 		}
 #endif  /* __AO__ */
 
@@ -379,22 +480,18 @@ ccl_device void kernel_path_indirect(KernelGlobals *kg,
 		/* bssrdf scatter to a different location on the same object, replacing
 		 * the closures with a diffuse BSDF */
 		if(sd->flag & SD_BSSRDF) {
-			float bssrdf_probability;
-			ShaderClosure *sc = subsurface_scatter_pick_closure(kg, sd, &bssrdf_probability);
+			float bssrdf_u, bssrdf_v;
+			path_state_rng_2D(kg,
+			                  state,
+			                  PRNG_BSDF_U,
+			                  &bssrdf_u, &bssrdf_v);
 
-			/* modify throughput for picking bssrdf or bsdf */
-			throughput *= bssrdf_probability;
+			const ShaderClosure *sc = shader_bssrdf_pick(sd, &throughput, &bssrdf_u);
 
 			/* do bssrdf scatter step if we picked a bssrdf closure */
 			if(sc) {
-				uint lcg_state = lcg_state_init(rng, state->rng_offset, state->sample, 0x68bc21eb);
-
-				float bssrdf_u, bssrdf_v;
-				path_state_rng_2D(kg,
-				                  rng,
-				                  state,
-				                  PRNG_BSDF_U,
-				                  &bssrdf_u, &bssrdf_v);
+				uint lcg_state = lcg_state_init(state, 0x68bc21eb);
+
 				subsurface_scatter_step(kg,
 				                        sd,
 				                        state,
@@ -412,7 +509,6 @@ ccl_device void kernel_path_indirect(KernelGlobals *kg,
 			int all = (kernel_data.integrator.sample_all_lights_indirect) ||
 			          (state->flag & PATH_RAY_SHADOW_CATCHER);
 			kernel_branched_path_surface_connect_light(kg,
-			                                           rng,
 			                                           sd,
 			                                           emission_sd,
 			                                           state,
@@ -423,38 +519,24 @@ ccl_device void kernel_path_indirect(KernelGlobals *kg,
 		}
 #endif  /* defined(__EMISSION__) */
 
-		if(!kernel_path_surface_bounce(kg, rng, sd, &throughput, state, L, ray))
+		if(!kernel_path_surface_bounce(kg, sd, &throughput, state, &L->state, ray))
 			break;
 	}
 }
 
+#endif /* defined(__BRANCHED_PATH__) || defined(__BAKING__) */
 
-ccl_device_inline float kernel_path_integrate(KernelGlobals *kg,
-                                              RNG *rng,
-                                              int sample,
-                                              Ray ray,
-                                              ccl_global float *buffer,
-                                              PathRadiance *L,
-                                              bool *is_shadow_catcher)
+ccl_device_forceinline void kernel_path_integrate(
+	KernelGlobals *kg,
+	PathState *state,
+	float3 throughput,
+	Ray *ray,
+	PathRadiance *L,
+	ccl_global float *buffer,
+	ShaderData *emission_sd)
 {
-	/* initialize */
-	float3 throughput = make_float3(1.0f, 1.0f, 1.0f);
-	float L_transparent = 0.0f;
-
-	path_radiance_init(L, kernel_data.film.use_light_pass);
-
-	/* shader data memory used for both volumes and surfaces, saves stack space */
+	/* Shader data memory used for both volumes and surfaces, saves stack space. */
 	ShaderData sd;
-	/* shader data used by emission, shadows, volume stacks */
-	ShaderData emission_sd;
-
-	PathState state;
-	path_state_init(kg, &emission_sd, &state, rng, sample, &ray);
-
-#ifdef __KERNEL_DEBUG__
-	DebugData debug_data;
-	debug_data_init(&debug_data);
-#endif  /* __KERNEL_DEBUG__ */
 
 #ifdef __SUBSURFACE__
 	SubsurfaceIndirectRays ss_indirect;
@@ -465,265 +547,82 @@ ccl_device_inline float kernel_path_integrate(KernelGlobals *kg,
 
 	/* path iteration */
 	for(;;) {
-		/* intersect scene */
+		/* Find intersection with objects in scene. */
 		Intersection isect;
-		uint visibility = path_state_ray_visibility(kg, &state);
-
-#ifdef __HAIR__
-		float difl = 0.0f, extmax = 0.0f;
-		uint lcg_state = 0;
-
-		if(kernel_data.bvh.have_curves) {
-			if((kernel_data.cam.resolution == 1) && (state.flag & PATH_RAY_CAMERA)) {	
-				float3 pixdiff = ray.dD.dx + ray.dD.dy;
-				/*pixdiff = pixdiff - dot(pixdiff, ray.D)*ray.D;*/
-				difl = kernel_data.curve.minimum_width * len(pixdiff) * 0.5f;
-			}
-
-			extmax = kernel_data.curve.maximum_width;
-			lcg_state = lcg_state_init(rng, state.rng_offset, state.sample, 0x51633e2d);
-		}
-
-		if(state.bounce > kernel_data.integrator.ao_bounces) {
-			visibility = PATH_RAY_SHADOW;
-			ray.t = kernel_data.background.ao_distance;
-		}
-
-		bool hit = scene_intersect(kg, ray, visibility, &isect, &lcg_state, difl, extmax);
-#else
-		bool hit = scene_intersect(kg, ray, visibility, &isect, NULL, 0.0f, 0.0f);
-#endif  /* __HAIR__ */
+		bool hit = kernel_path_scene_intersect(kg, state, ray, &isect, L);
 
-#ifdef __KERNEL_DEBUG__
-		if(state.flag & PATH_RAY_CAMERA) {
-			debug_data.num_bvh_traversed_nodes += isect.num_traversed_nodes;
-			debug_data.num_bvh_traversed_instances += isect.num_traversed_instances;
-			debug_data.num_bvh_intersections += isect.num_intersections;
-		}
-		debug_data.num_ray_bounces++;
-#endif  /* __KERNEL_DEBUG__ */
-
-#ifdef __LAMP_MIS__
-		if(kernel_data.integrator.use_lamp_mis && !(state.flag & PATH_RAY_CAMERA)) {
-			/* ray starting from previous non-transparent bounce */
-			Ray light_ray;
-
-			light_ray.P = ray.P - state.ray_t*ray.D;
-			state.ray_t += isect.t;
-			light_ray.D = ray.D;
-			light_ray.t = state.ray_t;
-			light_ray.time = ray.time;
-			light_ray.dD = ray.dD;
-			light_ray.dP = ray.dP;
-
-			/* intersect with lamp */
-			float3 emission;
-
-			if(indirect_lamp_emission(kg, &emission_sd, &state, &light_ray, &emission))
-				path_radiance_accum_emission(L, throughput, emission, state.bounce);
-		}
-#endif  /* __LAMP_MIS__ */
+		/* Find intersection with lamps and compute emission for MIS. */
+		kernel_path_lamp_emission(kg, state, ray, throughput, &isect, emission_sd, L);
 
 #ifdef __VOLUME__
-		/* Sanitize volume stack. */
-		if(!hit) {
-			kernel_volume_clean_stack(kg, state.volume_stack);
-		}
-		/* volume attenuation, emission, scatter */
-		if(state.volume_stack[0].shader != SHADER_NONE) {
-			Ray volume_ray = ray;
-			volume_ray.t = (hit)? isect.t: FLT_MAX;
-
-			bool heterogeneous = volume_stack_is_heterogeneous(kg, state.volume_stack);
-
-#  ifdef __VOLUME_DECOUPLED__
-			int sampling_method = volume_stack_sampling_method(kg, state.volume_stack);
-			bool decoupled = kernel_volume_use_decoupled(kg, heterogeneous, true, sampling_method);
-
-			if(decoupled) {
-				/* cache steps along volume for repeated sampling */
-				VolumeSegment volume_segment;
-
-				shader_setup_from_volume(kg, &sd, &volume_ray);
-				kernel_volume_decoupled_record(kg, &state,
-					&volume_ray, &sd, &volume_segment, heterogeneous);
-
-				volume_segment.sampling_method = sampling_method;
-
-				/* emission */
-				if(volume_segment.closure_flag & SD_EMISSION)
-					path_radiance_accum_emission(L, throughput, volume_segment.accum_emission, state.bounce);
-
-				/* scattering */
-				VolumeIntegrateResult result = VOLUME_PATH_ATTENUATED;
-
-				if(volume_segment.closure_flag & SD_SCATTER) {
-					int all = false;
-
-					/* direct light sampling */
-					kernel_branched_path_volume_connect_light(kg, rng, &sd,
-						&emission_sd, throughput, &state, L, all,
-						&volume_ray, &volume_segment);
-
-					/* indirect sample. if we use distance sampling and take just
-					 * one sample for direct and indirect light, we could share
-					 * this computation, but makes code a bit complex */
-					float rphase = path_state_rng_1D_for_decision(kg, rng, &state, PRNG_PHASE);
-					float rscatter = path_state_rng_1D_for_decision(kg, rng, &state, PRNG_SCATTER_DISTANCE);
-
-					result = kernel_volume_decoupled_scatter(kg,
-						&state, &volume_ray, &sd, &throughput,
-						rphase, rscatter, &volume_segment, NULL, true);
-				}
-
-				/* free cached steps */
-				kernel_volume_decoupled_free(kg, &volume_segment);
-
-				if(result == VOLUME_PATH_SCATTERED) {
-					if(kernel_path_volume_bounce(kg, rng, &sd, &throughput, &state, L, &ray))
-						continue;
-					else
-						break;
-				}
-				else {
-					throughput *= volume_segment.accum_transmittance;
-				}
-			}
-			else
-#  endif  /* __VOLUME_DECOUPLED__ */
-			{
-				/* integrate along volume segment with distance sampling */
-				VolumeIntegrateResult result = kernel_volume_integrate(
-					kg, &state, &sd, &volume_ray, L, &throughput, rng, heterogeneous);
-
-#  ifdef __VOLUME_SCATTER__
-				if(result == VOLUME_PATH_SCATTERED) {
-					/* direct lighting */
-					kernel_path_volume_connect_light(kg, rng, &sd, &emission_sd, throughput, &state, L);
-
-					/* indirect light bounce */
-					if(kernel_path_volume_bounce(kg, rng, &sd, &throughput, &state, L, &ray))
-						continue;
-					else
-						break;
-				}
-#  endif  /* __VOLUME_SCATTER__ */
-			}
+		/* Volume integration. */
+		VolumeIntegrateResult result = kernel_path_volume(kg,
+		                                                   &sd,
+		                                                   state,
+		                                                   ray,
+		                                                   &throughput,
+		                                                   &isect,
+		                                                   hit,
+		                                                   emission_sd,
+		                                                   L);
+
+		if(result == VOLUME_PATH_SCATTERED) {
+			continue;
+		}
+		else if(result == VOLUME_PATH_MISSED) {
+			break;
 		}
-#endif  /* __VOLUME__ */
+#endif /* __VOLUME__*/
 
+		/* Shade background. */
 		if(!hit) {
-			/* eval background shader if nothing hit */
-			if(kernel_data.background.transparent && (state.flag & PATH_RAY_CAMERA)) {
-				L_transparent += average(throughput);
-
-#ifdef __PASSES__
-				if(!(kernel_data.film.pass_flag & PASS_BACKGROUND))
-#endif  /* __PASSES__ */
-					break;
-			}
-
-#ifdef __BACKGROUND__
-			/* sample background shader */
-			float3 L_background = indirect_background(kg, &emission_sd, &state, &ray);
-			path_radiance_accum_background(L, &state, throughput, L_background);
-#endif  /* __BACKGROUND__ */
-
+			kernel_path_background(kg, state, ray, throughput, emission_sd, L);
 			break;
 		}
-		else if(state.bounce > kernel_data.integrator.ao_bounces) {
+		else if(path_state_ao_bounce(kg, state)) {
 			break;
 		}
 
-		/* setup shading */
-		shader_setup_from_ray(kg, &sd, &isect, &ray);
-		float rbsdf = path_state_rng_1D_for_decision(kg, rng, &state, PRNG_BSDF);
-		shader_eval_surface(kg, &sd, rng, &state, rbsdf, state.flag, SHADER_CONTEXT_MAIN);
-
-#ifdef __SHADOW_TRICKS__
-		if((sd.object_flag & SD_OBJECT_SHADOW_CATCHER)) {
-			if(state.flag & PATH_RAY_CAMERA) {
-				state.flag |= (PATH_RAY_SHADOW_CATCHER | PATH_RAY_SHADOW_CATCHER_ONLY | PATH_RAY_STORE_SHADOW_INFO);
-				state.catcher_object = sd.object;
-				if(!kernel_data.background.transparent) {
-					L->shadow_color = indirect_background(kg, &emission_sd, &state, &ray);
-				}
-			}
-		}
-		else {
-			state.flag &= ~PATH_RAY_SHADOW_CATCHER_ONLY;
-		}
-#endif  /* __SHADOW_TRICKS__ */
-
-		/* holdout */
-#ifdef __HOLDOUT__
-		if(((sd.flag & SD_HOLDOUT) ||
-		    (sd.object_flag & SD_OBJECT_HOLDOUT_MASK)) &&
-		   (state.flag & PATH_RAY_CAMERA))
+		/* Setup and evaluate shader. */
+		shader_setup_from_ray(kg, &sd, &isect, ray);
+		shader_eval_surface(kg, &sd, state, state->flag);
+		shader_prepare_closures(&sd, state);
+
+		/* Apply shadow catcher, holdout, emission. */
+		if(!kernel_path_shader_apply(kg,
+		                             &sd,
+		                             state,
+		                             ray,
+		                             throughput,
+		                             emission_sd,
+		                             L,
+		                             buffer))
 		{
-			if(kernel_data.background.transparent) {
-				float3 holdout_weight;
-				if(sd.object_flag & SD_OBJECT_HOLDOUT_MASK) {
-					holdout_weight = make_float3(1.0f, 1.0f, 1.0f);
-				}
-				else {
-					holdout_weight = shader_holdout_eval(kg, &sd);
-				}
-				/* any throughput is ok, should all be identical here */
-				L_transparent += average(holdout_weight*throughput);
-			}
-
-			if(sd.object_flag & SD_OBJECT_HOLDOUT_MASK) {
-				break;
-			}
-		}
-#endif  /* __HOLDOUT__ */
-
-		/* holdout mask objects do not write data passes */
-		kernel_write_data_passes(kg, buffer, L, &sd, sample, &state, throughput);
-
-		/* blurring of bsdf after bounces, for rays that have a small likelihood
-		 * of following this particular path (diffuse, rough glossy) */
-		if(kernel_data.integrator.filter_glossy != FLT_MAX) {
-			float blur_pdf = kernel_data.integrator.filter_glossy*state.min_ray_pdf;
-
-			if(blur_pdf < 1.0f) {
-				float blur_roughness = sqrtf(1.0f - blur_pdf)*0.5f;
-				shader_bsdf_blur(kg, &sd, blur_roughness);
-			}
-		}
-
-#ifdef __EMISSION__
-		/* emission */
-		if(sd.flag & SD_EMISSION) {
-			/* todo: is isect.t wrong here for transparent surfaces? */
-			float3 emission = indirect_primitive_emission(kg, &sd, isect.t, state.flag, state.ray_pdf);
-			path_radiance_accum_emission(L, throughput, emission, state.bounce);
+			break;
 		}
-#endif  /* __EMISSION__ */
 
 		/* path termination. this is a strange place to put the termination, it's
 		 * mainly due to the mixed in MIS that we use. gives too many unneeded
 		 * shader evaluations, only need emission if we are going to terminate */
-		float probability = path_state_terminate_probability(kg, &state, throughput);
+		float probability = path_state_continuation_probability(kg, state, throughput);
 
 		if(probability == 0.0f) {
 			break;
 		}
 		else if(probability != 1.0f) {
-			float terminate = path_state_rng_1D_for_decision(kg, rng, &state, PRNG_TERMINATE);
+			float terminate = path_state_rng_1D(kg, state, PRNG_TERMINATE);
 			if(terminate >= probability)
 				break;
 
 			throughput /= probability;
 		}
 
-		kernel_update_denoising_features(kg, &sd, &state, L);
+		kernel_update_denoising_features(kg, &sd, state, L);
 
 #ifdef __AO__
 		/* ambient occlusion */
 		if(kernel_data.integrator.use_ambient_occlusion || (sd.flag & SD_AO)) {
-			kernel_path_ao(kg, &sd, &emission_sd, L, &state, rng, throughput, shader_bsdf_alpha(kg, &sd));
+			kernel_path_ao(kg, &sd, emission_sd, L, state, throughput, shader_bsdf_alpha(kg, &sd));
 		}
 #endif  /* __AO__ */
 
@@ -733,11 +632,10 @@ ccl_device_inline float kernel_path_integrate(KernelGlobals *kg,
 		if(sd.flag & SD_BSSRDF) {
 			if(kernel_path_subsurface_scatter(kg,
 			                                  &sd,
-			                                  &emission_sd,
+			                                  emission_sd,
 			                                  L,
-			                                  &state,
-			                                  rng,
-			                                  &ray,
+			                                  state,
+			                                  ray,
 			                                  &throughput,
 			                                  &ss_indirect))
 			{
@@ -747,24 +645,22 @@ ccl_device_inline float kernel_path_integrate(KernelGlobals *kg,
 #endif  /* __SUBSURFACE__ */
 
 		/* direct lighting */
-		kernel_path_surface_connect_light(kg, rng, &sd, &emission_sd, throughput, &state, L);
+		kernel_path_surface_connect_light(kg, &sd, emission_sd, throughput, state, L);
 
 		/* compute direct lighting and next bounce */
-		if(!kernel_path_surface_bounce(kg, rng, &sd, &throughput, &state, L, &ray))
+		if(!kernel_path_surface_bounce(kg, &sd, &throughput, state, &L->state, ray))
 			break;
 	}
 
 #ifdef __SUBSURFACE__
-		kernel_path_subsurface_accum_indirect(&ss_indirect, L);
-
 		/* Trace indirect subsurface rays by restarting the loop. this uses less
 		 * stack memory than invoking kernel_path_indirect.
 		 */
 		if(ss_indirect.num_rays) {
 			kernel_path_subsurface_setup_indirect(kg,
 			                                      &ss_indirect,
-			                                      &state,
-			                                      &ray,
+			                                      state,
+			                                      ray,
 			                                      L,
 			                                      &throughput);
 		}
@@ -773,16 +669,6 @@ ccl_device_inline float kernel_path_integrate(KernelGlobals *kg,
 		}
 	}
 #endif  /* __SUBSURFACE__ */
-
-#ifdef __SHADOW_TRICKS__
-	*is_shadow_catcher = (state.flag & PATH_RAY_SHADOW_CATCHER);
-#endif  /* __SHADOW_TRICKS__ */
-
-#ifdef __KERNEL_DEBUG__
-	kernel_write_debug_passes(kg, buffer, &state, &debug_data, sample);
-#endif  /* __KERNEL_DEBUG__ */
-
-	return 1.0f - L_transparent;
 }
 
 ccl_device void kernel_path_trace(KernelGlobals *kg,
@@ -796,25 +682,37 @@ ccl_device void kernel_path_trace(KernelGlobals *kg,
 	rng_state += index;
 	buffer += index*pass_stride;
 
-	/* initialize random numbers and ray */
-	RNG rng;
+	/* Initialize random numbers and sample ray. */
+	uint rng_hash;
 	Ray ray;
 
-	kernel_path_trace_setup(kg, rng_state, sample, x, y, &rng, &ray);
-
-	/* integrate */
-	PathRadiance L;
-	bool is_shadow_catcher;
+	kernel_path_trace_setup(kg, rng_state, sample, x, y, &rng_hash, &ray);
 
-	if(ray.t != 0.0f) {
-		float alpha = kernel_path_integrate(kg, &rng, sample, ray, buffer, &L, &is_shadow_catcher);
-		kernel_write_result(kg, buffer, sample, &L, alpha, is_shadow_catcher);
-	}
-	else {
-		kernel_write_result(kg, buffer, sample, NULL, 0.0f, false);
+	if(ray.t == 0.0f) {
+		kernel_write_result(kg, buffer, sample, NULL);
+		return;
 	}
 
-	path_rng_end(kg, rng_state, rng);
+	/* Initialize state. */
+	float3 throughput = make_float3(1.0f, 1.0f, 1.0f);
+
+	PathRadiance L;
+	path_radiance_init(&L, kernel_data.film.use_light_pass);
+
+	ShaderData emission_sd;
+	PathState state;
+	path_state_init(kg, &emission_sd, &state, rng_hash, sample, &ray);
+
+	/* Integrate. */
+	kernel_path_integrate(kg,
+	                      &state,
+	                      throughput,
+	                      &ray,
+	                      &L,
+	                      buffer,
+	                      &emission_sd);
+
+	kernel_write_result(kg, buffer, sample, &L);
 }
 
 #endif  /* __SPLIT_KERNEL__ */
diff --git a/intern/cycles/kernel/kernel_path_branched.h b/intern/cycles/kernel/kernel_path_branched.h
index 10816d3e5d1..6e0ec22d581 100644
--- a/intern/cycles/kernel/kernel_path_branched.h
+++ b/intern/cycles/kernel/kernel_path_branched.h
@@ -23,7 +23,6 @@ ccl_device_inline void kernel_branched_path_ao(KernelGlobals *kg,
                                                ShaderData *emission_sd,
                                                PathRadiance *L,
                                                ccl_addr_space PathState *state,
-                                               RNG *rng,
                                                float3 throughput)
 {
 	int num_samples = kernel_data.integrator.ao_samples;
@@ -35,7 +34,7 @@ ccl_device_inline void kernel_branched_path_ao(KernelGlobals *kg,
 
 	for(int j = 0; j < num_samples; j++) {
 		float bsdf_u, bsdf_v;
-		path_branched_rng_2D(kg, rng, state, j, num_samples, PRNG_BSDF_U, &bsdf_u, &bsdf_v);
+		path_branched_rng_2D(kg, state->rng_hash, state, j, num_samples, PRNG_BSDF_U, &bsdf_u, &bsdf_v);
 
 		float3 ao_D;
 		float ao_pdf;
@@ -49,13 +48,11 @@ ccl_device_inline void kernel_branched_path_ao(KernelGlobals *kg,
 			light_ray.P = ray_offset(sd->P, sd->Ng);
 			light_ray.D = ao_D;
 			light_ray.t = kernel_data.background.ao_distance;
-#ifdef __OBJECT_MOTION__
 			light_ray.time = sd->time;
-#endif  /* __OBJECT_MOTION__ */
 			light_ray.dP = sd->dP;
 			light_ray.dD = differential3_zero();
 
-			if(!shadow_blocked(kg, emission_sd, state, &light_ray, &ao_shadow)) {
+			if(!shadow_blocked(kg, sd, emission_sd, state, &light_ray, &ao_shadow)) {
 				path_radiance_accum_ao(L, state, throughput*num_samples_inv, ao_alpha, ao_bsdf, ao_shadow);
 			}
 			else {
@@ -69,7 +66,7 @@ ccl_device_inline void kernel_branched_path_ao(KernelGlobals *kg,
 
 /* bounce off surface and integrate indirect light */
 ccl_device_noinline void kernel_branched_path_surface_indirect_light(KernelGlobals *kg,
-	RNG *rng, ShaderData *sd, ShaderData *indirect_sd, ShaderData *emission_sd,
+	ShaderData *sd, ShaderData *indirect_sd, ShaderData *emission_sd,
 	float3 throughput, float num_samples_adjust, PathState *state, PathRadiance *L)
 {
 	float sum_sample_weight = 0.0f;
@@ -113,35 +110,38 @@ ccl_device_noinline void kernel_branched_path_surface_indirect_light(KernelGloba
 		num_samples = ceil_to_int(num_samples_adjust*num_samples);
 
 		float num_samples_inv = num_samples_adjust/num_samples;
-		RNG bsdf_rng = cmj_hash(*rng, i);
 
 		for(int j = 0; j < num_samples; j++) {
 			PathState ps = *state;
 			float3 tp = throughput;
 			Ray bsdf_ray;
+#ifdef __SHADOW_TRICKS__
+			float shadow_transparency = L->shadow_transparency;
+#endif
+
+			ps.rng_hash = cmj_hash(state->rng_hash, i);
 
 			if(!kernel_branched_path_surface_bounce(kg,
-			                                        &bsdf_rng,
 			                                        sd,
 			                                        sc,
 			                                        j,
 			                                        num_samples,
 			                                        &tp,
 			                                        &ps,
-			                                        L,
+			                                        &L->state,
 			                                        &bsdf_ray,
 			                                        sum_sample_weight))
 			{
 				continue;
 			}
 
+			ps.rng_hash = state->rng_hash;
+
 			kernel_path_indirect(kg,
 			                     indirect_sd,
 			                     emission_sd,
-			                     rng,
 			                     &bsdf_ray,
 			                     tp*num_samples_inv,
-			                     num_samples,
 			                     &ps,
 			                     L);
 
@@ -149,6 +149,10 @@ ccl_device_noinline void kernel_branched_path_surface_indirect_light(KernelGloba
 			 * for the next samples */
 			path_radiance_sum_indirect(L);
 			path_radiance_reset_indirect(L);
+
+#ifdef __SHADOW_TRICKS__
+			L->shadow_transparency = shadow_transparency;
+#endif
 		}
 	}
 }
@@ -160,7 +164,6 @@ ccl_device void kernel_branched_path_subsurface_scatter(KernelGlobals *kg,
                                                         ShaderData *emission_sd,
                                                         PathRadiance *L,
                                                         PathState *state,
-                                                        RNG *rng,
                                                         Ray *ray,
                                                         float3 throughput)
 {
@@ -171,17 +174,17 @@ ccl_device void kernel_branched_path_subsurface_scatter(KernelGlobals *kg,
 			continue;
 
 		/* set up random number generator */
-		uint lcg_state = lcg_state_init(rng, state->rng_offset, state->sample, 0x68bc21eb);
+		uint lcg_state = lcg_state_init(state, 0x68bc21eb);
 		int num_samples = kernel_data.integrator.subsurface_samples;
 		float num_samples_inv = 1.0f/num_samples;
-		RNG bssrdf_rng = cmj_hash(*rng, i);
+		uint bssrdf_rng_hash = cmj_hash(state->rng_hash, i);
 
 		/* do subsurface scatter step with copy of shader data, this will
 		 * replace the BSSRDF with a diffuse BSDF closure */
 		for(int j = 0; j < num_samples; j++) {
 			SubsurfaceIntersection ss_isect;
 			float bssrdf_u, bssrdf_v;
-			path_branched_rng_2D(kg, &bssrdf_rng, state, j, num_samples, PRNG_BSDF_U, &bssrdf_u, &bssrdf_v);
+			path_branched_rng_2D(kg, bssrdf_rng_hash, state, j, num_samples, PRNG_BSDF_U, &bssrdf_u, &bssrdf_v);
 			int num_hits = subsurface_scatter_multi_intersect(kg,
 			                                                  &ss_isect,
 			                                                  sd,
@@ -234,7 +237,6 @@ ccl_device void kernel_branched_path_subsurface_scatter(KernelGlobals *kg,
 					          (state->flag & PATH_RAY_SHADOW_CATCHER);
 					kernel_branched_path_surface_connect_light(
 					        kg,
-					        rng,
 					        &bssrdf_sd,
 					        emission_sd,
 					        &hit_state,
@@ -248,7 +250,6 @@ ccl_device void kernel_branched_path_subsurface_scatter(KernelGlobals *kg,
 				/* indirect light */
 				kernel_branched_path_surface_indirect_light(
 				        kg,
-				        rng,
 				        &bssrdf_sd,
 				        indirect_sd,
 				        emission_sd,
@@ -262,17 +263,15 @@ ccl_device void kernel_branched_path_subsurface_scatter(KernelGlobals *kg,
 }
 #endif  /* __SUBSURFACE__ */
 
-ccl_device float kernel_branched_path_integrate(KernelGlobals *kg,
-                                                RNG *rng,
-                                                int sample,
-                                                Ray ray,
-                                                ccl_global float *buffer,
-                                                PathRadiance *L,
-                                                bool *is_shadow_catcher)
+ccl_device void kernel_branched_path_integrate(KernelGlobals *kg,
+                                               uint rng_hash,
+                                               int sample,
+                                               Ray ray,
+                                               ccl_global float *buffer,
+                                               PathRadiance *L)
 {
 	/* initialize */
 	float3 throughput = make_float3(1.0f, 1.0f, 1.0f);
-	float L_transparent = 0.0f;
 
 	path_radiance_init(L, kernel_data.film.use_light_pass);
 
@@ -282,48 +281,16 @@ ccl_device float kernel_branched_path_integrate(KernelGlobals *kg,
 	ShaderData emission_sd, indirect_sd;
 
 	PathState state;
-	path_state_init(kg, &emission_sd, &state, rng, sample, &ray);
-
-#ifdef __KERNEL_DEBUG__
-	DebugData debug_data;
-	debug_data_init(&debug_data);
-#endif  /* __KERNEL_DEBUG__ */
+	path_state_init(kg, &emission_sd, &state, rng_hash, sample, &ray);
 
 	/* Main Loop
 	 * Here we only handle transparency intersections from the camera ray.
 	 * Indirect bounces are handled in kernel_branched_path_surface_indirect_light().
 	 */
 	for(;;) {
-		/* intersect scene */
+		/* Find intersection with objects in scene. */
 		Intersection isect;
-		uint visibility = path_state_ray_visibility(kg, &state);
-
-#ifdef __HAIR__
-		float difl = 0.0f, extmax = 0.0f;
-		uint lcg_state = 0;
-
-		if(kernel_data.bvh.have_curves) {
-			if(kernel_data.cam.resolution == 1) {
-				float3 pixdiff = ray.dD.dx + ray.dD.dy;
-				/*pixdiff = pixdiff - dot(pixdiff, ray.D)*ray.D;*/
-				difl = kernel_data.curve.minimum_width * len(pixdiff) * 0.5f;
-			}
-
-			extmax = kernel_data.curve.maximum_width;
-			lcg_state = lcg_state_init(rng, state.rng_offset, state.sample, 0x51633e2d);
-		}
-
-		bool hit = scene_intersect(kg, ray, visibility, &isect, &lcg_state, difl, extmax);
-#else
-		bool hit = scene_intersect(kg, ray, visibility, &isect, NULL, 0.0f, 0.0f);
-#endif  /* __HAIR__ */
-
-#ifdef __KERNEL_DEBUG__
-		debug_data.num_bvh_traversed_nodes += isect.num_traversed_nodes;
-		debug_data.num_bvh_traversed_instances += isect.num_traversed_instances;
-		debug_data.num_bvh_intersections += isect.num_intersections;
-		debug_data.num_ray_bounces++;
-#endif  /* __KERNEL_DEBUG__ */
+		bool hit = kernel_path_scene_intersect(kg, &state, &ray, &isect, L);
 
 #ifdef __VOLUME__
 		/* Sanitize volume stack. */
@@ -353,7 +320,7 @@ ccl_device float kernel_branched_path_integrate(KernelGlobals *kg,
 
 				int all = kernel_data.integrator.sample_all_lights_direct;
 
-				kernel_branched_path_volume_connect_light(kg, rng, &sd,
+				kernel_branched_path_volume_connect_light(kg, &sd,
 					&emission_sd, throughput, &state, L, all,
 					&volume_ray, &volume_segment);
 
@@ -372,30 +339,25 @@ ccl_device float kernel_branched_path_integrate(KernelGlobals *kg,
 					/* scatter sample. if we use distance sampling and take just one
 					 * sample for direct and indirect light, we could share this
 					 * computation, but makes code a bit complex */
-					float rphase = path_state_rng_1D_for_decision(kg, rng, &ps, PRNG_PHASE);
-					float rscatter = path_state_rng_1D_for_decision(kg, rng, &ps, PRNG_SCATTER_DISTANCE);
+					float rphase = path_state_rng_1D(kg, &ps, PRNG_PHASE_CHANNEL);
+					float rscatter = path_state_rng_1D(kg, &ps, PRNG_SCATTER_DISTANCE);
 
 					VolumeIntegrateResult result = kernel_volume_decoupled_scatter(kg,
 						&ps, &pray, &sd, &tp, rphase, rscatter, &volume_segment, NULL, false);
 
-					(void)result;
-					kernel_assert(result == VOLUME_PATH_SCATTERED);
-
-					if(kernel_path_volume_bounce(kg,
-					                             rng,
+					if(result == VOLUME_PATH_SCATTERED &&
+					   kernel_path_volume_bounce(kg,
 					                             &sd,
 					                             &tp,
 					                             &ps,
-					                             L,
+					                             &L->state,
 					                             &pray))
 					{
 						kernel_path_indirect(kg,
 						                     &indirect_sd,
 						                     &emission_sd,
-						                     rng,
 						                     &pray,
 						                     tp*num_samples_inv,
-						                     num_samples,
 						                     &ps,
 						                     L);
 
@@ -409,7 +371,7 @@ ccl_device float kernel_branched_path_integrate(KernelGlobals *kg,
 
 			/* emission and transmittance */
 			if(volume_segment.closure_flag & SD_EMISSION)
-				path_radiance_accum_emission(L, throughput, volume_segment.accum_emission, state.bounce);
+				path_radiance_accum_emission(L, &state, throughput, volume_segment.accum_emission);
 			throughput *= volume_segment.accum_transmittance;
 
 			/* free cached steps */
@@ -431,29 +393,26 @@ ccl_device float kernel_branched_path_integrate(KernelGlobals *kg,
 				path_state_branch(&ps, j, num_samples);
 
 				VolumeIntegrateResult result = kernel_volume_integrate(
-					kg, &ps, &sd, &volume_ray, L, &tp, rng, heterogeneous);
+					kg, &ps, &sd, &volume_ray, L, &tp, heterogeneous);
 
 #ifdef __VOLUME_SCATTER__
 				if(result == VOLUME_PATH_SCATTERED) {
 					/* todo: support equiangular, MIS and all light sampling.
 					 * alternatively get decoupled ray marching working on the GPU */
-					kernel_path_volume_connect_light(kg, rng, &sd, &emission_sd, tp, &state, L);
+					kernel_path_volume_connect_light(kg, &sd, &emission_sd, tp, &state, L);
 
 					if(kernel_path_volume_bounce(kg,
-					                             rng,
 					                             &sd,
 					                             &tp,
 					                             &ps,
-					                             L,
+					                             &L->state,
 					                             &pray))
 					{
 						kernel_path_indirect(kg,
 						                     &indirect_sd,
 						                     &emission_sd,
-						                     rng,
 						                     &pray,
 						                     tp,
-						                     num_samples,
 						                     &ps,
 						                     L);
 
@@ -472,89 +431,42 @@ ccl_device float kernel_branched_path_integrate(KernelGlobals *kg,
 		}
 #endif  /* __VOLUME__ */
 
+		/* Shade background. */
 		if(!hit) {
-			/* eval background shader if nothing hit */
-			if(kernel_data.background.transparent) {
-				L_transparent += average(throughput);
-
-#ifdef __PASSES__
-				if(!(kernel_data.film.pass_flag & PASS_BACKGROUND))
-#endif  /* __PASSES__ */
-					break;
-			}
-
-#ifdef __BACKGROUND__
-			/* sample background shader */
-			float3 L_background = indirect_background(kg, &emission_sd, &state, &ray);
-			path_radiance_accum_background(L, &state, throughput, L_background);
-#endif  /* __BACKGROUND__ */
-
+			kernel_path_background(kg, &state, &ray, throughput, &emission_sd, L);
 			break;
 		}
 
-		/* setup shading */
+		/* Setup and evaluate shader. */
 		shader_setup_from_ray(kg, &sd, &isect, &ray);
-		shader_eval_surface(kg, &sd, rng, &state, 0.0f, state.flag, SHADER_CONTEXT_MAIN);
+		shader_eval_surface(kg, &sd, &state, state.flag);
 		shader_merge_closures(&sd);
 
-#ifdef __SHADOW_TRICKS__
-		if((sd.object_flag & SD_OBJECT_SHADOW_CATCHER)) {
-			if(state.flag & PATH_RAY_CAMERA) {
-				state.flag |= (PATH_RAY_SHADOW_CATCHER | PATH_RAY_SHADOW_CATCHER_ONLY | PATH_RAY_STORE_SHADOW_INFO);
-				state.catcher_object = sd.object;
-				if(!kernel_data.background.transparent) {
-					L->shadow_color = indirect_background(kg, &emission_sd, &state, &ray);
-				}
-			}
-		}
-		else {
-			state.flag &= ~PATH_RAY_SHADOW_CATCHER_ONLY;
-		}
-#endif  /* __SHADOW_TRICKS__ */
-
-		/* holdout */
-#ifdef __HOLDOUT__
-		if((sd.flag & SD_HOLDOUT) || (sd.object_flag & SD_OBJECT_HOLDOUT_MASK)) {
-			if(kernel_data.background.transparent) {
-				float3 holdout_weight;
-				if(sd.object_flag & SD_OBJECT_HOLDOUT_MASK) {
-					holdout_weight = make_float3(1.0f, 1.0f, 1.0f);
-				}
-				else {
-					holdout_weight = shader_holdout_eval(kg, &sd);
-				}
-				/* any throughput is ok, should all be identical here */
-				L_transparent += average(holdout_weight*throughput);
-			}
-			if(sd.object_flag & SD_OBJECT_HOLDOUT_MASK) {
-				break;
-			}
-		}
-#endif  /* __HOLDOUT__ */
-
-		/* holdout mask objects do not write data passes */
-		kernel_write_data_passes(kg, buffer, L, &sd, sample, &state, throughput);
-
-#ifdef __EMISSION__
-		/* emission */
-		if(sd.flag & SD_EMISSION) {
-			float3 emission = indirect_primitive_emission(kg, &sd, isect.t, state.flag, state.ray_pdf);
-			path_radiance_accum_emission(L, throughput, emission, state.bounce);
+		/* Apply shadow catcher, holdout, emission. */
+		if(!kernel_path_shader_apply(kg,
+		                             &sd,
+		                             &state,
+		                             &ray,
+		                             throughput,
+		                             &emission_sd,
+		                             L,
+		                             buffer))
+		{
+			break;
 		}
-#endif  /* __EMISSION__ */
 
 		/* transparency termination */
 		if(state.flag & PATH_RAY_TRANSPARENT) {
 			/* path termination. this is a strange place to put the termination, it's
 			 * mainly due to the mixed in MIS that we use. gives too many unneeded
 			 * shader evaluations, only need emission if we are going to terminate */
-			float probability = path_state_terminate_probability(kg, &state, throughput);
+			float probability = path_state_continuation_probability(kg, &state, throughput);
 
 			if(probability == 0.0f) {
 				break;
 			}
 			else if(probability != 1.0f) {
-				float terminate = path_state_rng_1D_for_decision(kg, rng, &state, PRNG_TERMINATE);
+				float terminate = path_state_rng_1D(kg, &state, PRNG_TERMINATE);
 
 				if(terminate >= probability)
 					break;
@@ -568,7 +480,7 @@ ccl_device float kernel_branched_path_integrate(KernelGlobals *kg,
 #ifdef __AO__
 		/* ambient occlusion */
 		if(kernel_data.integrator.use_ambient_occlusion || (sd.flag & SD_AO)) {
-			kernel_branched_path_ao(kg, &sd, &emission_sd, L, &state, rng, throughput);
+			kernel_branched_path_ao(kg, &sd, &emission_sd, L, &state, throughput);
 		}
 #endif  /* __AO__ */
 
@@ -576,7 +488,7 @@ ccl_device float kernel_branched_path_integrate(KernelGlobals *kg,
 		/* bssrdf scatter to a different location on the same object */
 		if(sd.flag & SD_BSSRDF) {
 			kernel_branched_path_subsurface_scatter(kg, &sd, &indirect_sd, &emission_sd,
-			                                        L, &state, rng, &ray, throughput);
+			                                        L, &state, &ray, throughput);
 		}
 #endif  /* __SUBSURFACE__ */
 
@@ -588,13 +500,13 @@ ccl_device float kernel_branched_path_integrate(KernelGlobals *kg,
 			if(kernel_data.integrator.use_direct_light) {
 				int all = (kernel_data.integrator.sample_all_lights_direct) ||
 				          (state.flag & PATH_RAY_SHADOW_CATCHER);
-				kernel_branched_path_surface_connect_light(kg, rng,
+				kernel_branched_path_surface_connect_light(kg,
 					&sd, &emission_sd, &hit_state, throughput, 1.0f, L, all);
 			}
 #endif  /* __EMISSION__ */
 
 			/* indirect light */
-			kernel_branched_path_surface_indirect_light(kg, rng,
+			kernel_branched_path_surface_indirect_light(kg,
 				&sd, &indirect_sd, &emission_sd, throughput, 1.0f, &hit_state, L);
 
 			/* continue in case of transparency */
@@ -623,16 +535,6 @@ ccl_device float kernel_branched_path_integrate(KernelGlobals *kg,
 		kernel_volume_stack_enter_exit(kg, &sd, state.volume_stack);
 #endif  /* __VOLUME__ */
 	}
-
-#ifdef __SHADOW_TRICKS__
-	*is_shadow_catcher = (state.flag & PATH_RAY_SHADOW_CATCHER);
-#endif  /* __SHADOW_TRICKS__ */
-
-#ifdef __KERNEL_DEBUG__
-	kernel_write_debug_passes(kg, buffer, &state, &debug_data, sample);
-#endif  /* __KERNEL_DEBUG__ */
-
-	return 1.0f - L_transparent;
 }
 
 ccl_device void kernel_branched_path_trace(KernelGlobals *kg,
@@ -647,24 +549,21 @@ ccl_device void kernel_branched_path_trace(KernelGlobals *kg,
 	buffer += index*pass_stride;
 
 	/* initialize random numbers and ray */
-	RNG rng;
+	uint rng_hash;
 	Ray ray;
 
-	kernel_path_trace_setup(kg, rng_state, sample, x, y, &rng, &ray);
+	kernel_path_trace_setup(kg, rng_state, sample, x, y, &rng_hash, &ray);
 
 	/* integrate */
 	PathRadiance L;
-	bool is_shadow_catcher;
 
 	if(ray.t != 0.0f) {
-		float alpha = kernel_branched_path_integrate(kg, &rng, sample, ray, buffer, &L, &is_shadow_catcher);
-		kernel_write_result(kg, buffer, sample, &L, alpha, is_shadow_catcher);
+		kernel_branched_path_integrate(kg, rng_hash, sample, ray, buffer, &L);
+		kernel_write_result(kg, buffer, sample, &L);
 	}
 	else {
-		kernel_write_result(kg, buffer, sample, NULL, 0.0f, false);
+		kernel_write_result(kg, buffer, sample, NULL);
 	}
-
-	path_rng_end(kg, rng_state, rng);
 }
 
 #endif  /* __SPLIT_KERNEL__ */
diff --git a/intern/cycles/kernel/kernel_path_common.h b/intern/cycles/kernel/kernel_path_common.h
index 82f83deb595..54dd278a185 100644
--- a/intern/cycles/kernel/kernel_path_common.h
+++ b/intern/cycles/kernel/kernel_path_common.h
@@ -22,7 +22,7 @@ ccl_device_inline void kernel_path_trace_setup(KernelGlobals *kg,
                                                ccl_global uint *rng_state,
                                                int sample,
                                                int x, int y,
-                                               RNG *rng,
+                                               uint *rng_hash,
                                                ccl_addr_space Ray *ray)
 {
 	float filter_u;
@@ -34,20 +34,20 @@ ccl_device_inline void kernel_path_trace_setup(KernelGlobals *kg,
 		*rng_state = hash_int_2d(x, y);
 	}
 
-	path_rng_init(kg, rng_state, sample, num_samples, rng, x, y, &filter_u, &filter_v);
+	path_rng_init(kg, rng_state, sample, num_samples, rng_hash, x, y, &filter_u, &filter_v);
 
 	/* sample camera ray */
 
 	float lens_u = 0.0f, lens_v = 0.0f;
 
 	if(kernel_data.cam.aperturesize > 0.0f)
-		path_rng_2D(kg, rng, sample, num_samples, PRNG_LENS_U, &lens_u, &lens_v);
+		path_rng_2D(kg, *rng_hash, sample, num_samples, PRNG_LENS_U, &lens_u, &lens_v);
 
 	float time = 0.0f;
 
 #ifdef __CAMERA_MOTION__
 	if(kernel_data.cam.shuttertime != -1.0f)
-		time = path_rng_1D(kg, rng, sample, num_samples, PRNG_TIME);
+		time = path_rng_1D(kg, *rng_hash, sample, num_samples, PRNG_TIME);
 #endif
 
 	camera_sample(kg, x, y, filter_u, filter_v, lens_u, lens_v, time, ray);
diff --git a/intern/cycles/kernel/kernel_path_state.h b/intern/cycles/kernel/kernel_path_state.h
index 5d92fd12201..eccee54c0e3 100644
--- a/intern/cycles/kernel/kernel_path_state.h
+++ b/intern/cycles/kernel/kernel_path_state.h
@@ -19,15 +19,17 @@ CCL_NAMESPACE_BEGIN
 ccl_device_inline void path_state_init(KernelGlobals *kg,
                                        ShaderData *stack_sd,
                                        ccl_addr_space PathState *state,
-                                       RNG *rng,
+                                       uint rng_hash,
                                        int sample,
                                        ccl_addr_space Ray *ray)
 {
 	state->flag = PATH_RAY_CAMERA|PATH_RAY_MIS_SKIP;
 
+	state->rng_hash = rng_hash;
 	state->rng_offset = PRNG_BASE_NUM;
 	state->sample = sample;
 	state->num_samples = kernel_data.integrator.aa_samples;
+	state->branch_factor = 1.0f;
 
 	state->bounce = 0;
 	state->diffuse_bounce = 0;
@@ -58,16 +60,12 @@ ccl_device_inline void path_state_init(KernelGlobals *kg,
 		/* Initialize volume stack with volume we are inside of. */
 		kernel_volume_stack_init(kg, stack_sd, state, ray, state->volume_stack);
 		/* Seed RNG for cases where we can't use stratified samples .*/
-		state->rng_congruential = lcg_init(*rng + sample*0x51633e2d);
+		state->rng_congruential = lcg_init(rng_hash + sample*0x51633e2d);
 	}
 	else {
 		state->volume_stack[0].shader = SHADER_NONE;
 	}
 #endif
-
-#ifdef __SHADOW_TRICKS__
-	state->catcher_object = OBJECT_NONE;
-#endif
 }
 
 ccl_device_inline void path_state_next(KernelGlobals *kg, ccl_addr_space PathState *state, int label)
@@ -78,12 +76,12 @@ ccl_device_inline void path_state_next(KernelGlobals *kg, ccl_addr_space PathSta
 		state->flag |= PATH_RAY_TRANSPARENT;
 		state->transparent_bounce++;
 
-		/* don't increase random number generator offset here, to avoid some
-		 * unwanted patterns, see path_state_rng_1D_for_decision */
-
 		if(!kernel_data.integrator.transparent_shadows)
 			state->flag |= PATH_RAY_MIS_SKIP;
 
+		/* random number generator next bounce */
+		state->rng_offset += PRNG_BOUNCE_NUM;
+
 		return;
 	}
 
@@ -146,7 +144,7 @@ ccl_device_inline void path_state_next(KernelGlobals *kg, ccl_addr_space PathSta
 #endif
 }
 
-ccl_device_inline uint path_state_ray_visibility(KernelGlobals *kg, PathState *state)
+ccl_device_inline uint path_state_ray_visibility(KernelGlobals *kg, ccl_addr_space PathState *state)
 {
 	uint flag = state->flag & PATH_RAY_ALL_VISIBILITY;
 
@@ -160,17 +158,28 @@ ccl_device_inline uint path_state_ray_visibility(KernelGlobals *kg, PathState *s
 	return flag;
 }
 
-ccl_device_inline float path_state_terminate_probability(KernelGlobals *kg, ccl_addr_space PathState *state, const float3 throughput)
+ccl_device_inline float path_state_continuation_probability(KernelGlobals *kg,
+                                                            ccl_addr_space PathState *state,
+                                                            const float3 throughput)
 {
 	if(state->flag & PATH_RAY_TRANSPARENT) {
-		/* transparent rays treated separately */
-		if(state->transparent_bounce >= kernel_data.integrator.transparent_max_bounce)
+		/* Transparent rays are treated separately with own max bounces. */
+		if(state->transparent_bounce >= kernel_data.integrator.transparent_max_bounce) {
 			return 0.0f;
-		else if(state->transparent_bounce <= kernel_data.integrator.transparent_min_bounce)
+		}
+		/* Do at least one bounce without RR. */
+		else if(state->transparent_bounce <= 1) {
 			return 1.0f;
+		}
+#ifdef __SHADOW_TRICKS__
+		/* Exception for shadow catcher not working correctly with RR. */
+		else if((state->flag & PATH_RAY_SHADOW_CATCHER) && (state->transparent_bounce <= 8)) {
+			return 1.0f;
+		}
+#endif
 	}
 	else {
-		/* other rays */
+		/* Test max bounces for various ray types. */
 		if((state->bounce >= kernel_data.integrator.max_bounce) ||
 		   (state->diffuse_bounce >= kernel_data.integrator.max_diffuse_bounce) ||
 		   (state->glossy_bounce >= kernel_data.integrator.max_glossy_bounce) ||
@@ -181,13 +190,21 @@ ccl_device_inline float path_state_terminate_probability(KernelGlobals *kg, ccl_
 		{
 			return 0.0f;
 		}
-		else if(state->bounce <= kernel_data.integrator.min_bounce) {
+		/* Do at least one bounce without RR. */
+		else if(state->bounce <= 1) {
 			return 1.0f;
 		}
+#ifdef __SHADOW_TRICKS__
+		/* Exception for shadow catcher not working correctly with RR. */
+		else if((state->flag & PATH_RAY_SHADOW_CATCHER) && (state->bounce <= 3)) {
+			return 1.0f;
+		}
+#endif
 	}
 
-	/* probalistic termination */
-	return average(throughput); /* todo: try using max here */
+	/* Probalistic termination: use sqrt() to roughly match typical view
+	 * transform and do path termination a bit later on average. */
+	return min(sqrtf(max3(fabs(throughput)) * state->branch_factor), 1.0f);
 }
 
 /* TODO(DingTo): Find more meaningful name for this */
@@ -200,5 +217,30 @@ ccl_device_inline void path_state_modify_bounce(ccl_addr_space PathState *state,
 		state->bounce -= 1;
 }
 
+ccl_device_inline bool path_state_ao_bounce(KernelGlobals *kg, ccl_addr_space PathState *state)
+{
+    if(state->bounce <= kernel_data.integrator.ao_bounces) {
+        return false;
+    }
+
+    int bounce = state->bounce - state->transmission_bounce - (state->glossy_bounce > 0);
+    return (bounce > kernel_data.integrator.ao_bounces);
+}
+
+ccl_device_inline void path_state_branch(ccl_addr_space PathState *state,
+                                         int branch,
+                                         int num_branches)
+{
+	state->rng_offset += PRNG_BOUNCE_NUM;
+
+	if(num_branches > 1) {
+		/* Path is splitting into a branch, adjust so that each branch
+		 * still gets a unique sample from the same sequence. */
+		state->sample = state->sample*num_branches + branch;
+		state->num_samples = state->num_samples*num_branches;
+		state->branch_factor *= num_branches;
+	}
+}
+
 CCL_NAMESPACE_END
 
diff --git a/intern/cycles/kernel/kernel_path_subsurface.h b/intern/cycles/kernel/kernel_path_subsurface.h
index 10b568ac3dd..1436e8e5a5b 100644
--- a/intern/cycles/kernel/kernel_path_subsurface.h
+++ b/intern/cycles/kernel/kernel_path_subsurface.h
@@ -28,16 +28,14 @@ bool kernel_path_subsurface_scatter(
         ShaderData *emission_sd,
         PathRadiance *L,
         ccl_addr_space PathState *state,
-        RNG *rng,
         ccl_addr_space Ray *ray,
         ccl_addr_space float3 *throughput,
         ccl_addr_space SubsurfaceIndirectRays *ss_indirect)
 {
-	float bssrdf_probability;
-	ShaderClosure *sc = subsurface_scatter_pick_closure(kg, sd, &bssrdf_probability);
+	float bssrdf_u, bssrdf_v;
+	path_state_rng_2D(kg, state, PRNG_BSDF_U, &bssrdf_u, &bssrdf_v);
 
-	/* modify throughput for picking bssrdf or bsdf */
-	*throughput *= bssrdf_probability;
+	const ShaderClosure *sc = shader_bssrdf_pick(sd, throughput, &bssrdf_u);
 
 	/* do bssrdf scatter step if we picked a bssrdf closure */
 	if(sc) {
@@ -45,13 +43,11 @@ bool kernel_path_subsurface_scatter(
 		 * the second one should be converted to a diffuse BSDF to
 		 * avoid this.
 		 */
-		kernel_assert(!ss_indirect->tracing);
+		kernel_assert(!(state->flag & PATH_RAY_DIFFUSE_ANCESTOR));
 
-		uint lcg_state = lcg_state_init(rng, state->rng_offset, state->sample, 0x68bc21eb);
+		uint lcg_state = lcg_state_init_addrspace(state, 0x68bc21eb);
 
 		SubsurfaceIntersection ss_isect;
-		float bssrdf_u, bssrdf_v;
-		path_state_rng_2D(kg, rng, state, PRNG_BSDF_U, &bssrdf_u, &bssrdf_v);
 		int num_hits = subsurface_scatter_multi_intersect(kg,
 		                                                  &ss_isect,
 		                                                  sd,
@@ -60,7 +56,7 @@ bool kernel_path_subsurface_scatter(
 		                                                  bssrdf_u, bssrdf_v,
 		                                                  false);
 #  ifdef __VOLUME__
-		ss_indirect->need_update_volume_stack =
+		bool need_update_volume_stack =
 		        kernel_data.integrator.use_volumes &&
 		        sd->object_flag & SD_OBJECT_INTERSECTS_VOLUME;
 #  endif  /* __VOLUME__ */
@@ -79,29 +75,25 @@ bool kernel_path_subsurface_scatter(
 			                               sc,
 			                               false);
 
+			kernel_path_surface_connect_light(kg, sd, emission_sd, *throughput, state, L);
+
 			ccl_addr_space PathState *hit_state = &ss_indirect->state[ss_indirect->num_rays];
 			ccl_addr_space Ray *hit_ray = &ss_indirect->rays[ss_indirect->num_rays];
 			ccl_addr_space float3 *hit_tp = &ss_indirect->throughputs[ss_indirect->num_rays];
-			PathRadiance *hit_L = &ss_indirect->L[ss_indirect->num_rays];
+			PathRadianceState *hit_L_state = &ss_indirect->L_state[ss_indirect->num_rays];
 
 			*hit_state = *state;
 			*hit_ray = *ray;
 			*hit_tp = *throughput;
+			*hit_L_state = L->state;
 
 			hit_state->rng_offset += PRNG_BOUNCE_NUM;
 
-			path_radiance_init(hit_L, kernel_data.film.use_light_pass);
-			hit_L->direct_throughput = L->direct_throughput;
-			path_radiance_copy_indirect(hit_L, L);
-
-			kernel_path_surface_connect_light(kg, rng, sd, emission_sd, *hit_tp, state, hit_L);
-
 			if(kernel_path_surface_bounce(kg,
-			                              rng,
 			                              sd,
 			                              hit_tp,
 			                              hit_state,
-			                              hit_L,
+			                              hit_L_state,
 			                              hit_ray))
 			{
 #  ifdef __LAMP_MIS__
@@ -109,7 +101,7 @@ bool kernel_path_subsurface_scatter(
 #  endif  /* __LAMP_MIS__ */
 
 #  ifdef __VOLUME__
-				if(ss_indirect->need_update_volume_stack) {
+				if(need_update_volume_stack) {
 					Ray volume_ray = *ray;
 					/* Setup ray from previous surface point to the new one. */
 					volume_ray.D = normalize_len(hit_ray->P - volume_ray.P,
@@ -122,12 +114,8 @@ bool kernel_path_subsurface_scatter(
 					    hit_state->volume_stack);
 				}
 #  endif  /* __VOLUME__ */
-				path_radiance_reset_indirect(L);
 				ss_indirect->num_rays++;
 			}
-			else {
-				path_radiance_accum_sample(L, hit_L, 1);
-			}
 		}
 		return true;
 	}
@@ -137,23 +125,9 @@ bool kernel_path_subsurface_scatter(
 ccl_device_inline void kernel_path_subsurface_init_indirect(
         ccl_addr_space SubsurfaceIndirectRays *ss_indirect)
 {
-	ss_indirect->tracing = false;
 	ss_indirect->num_rays = 0;
 }
 
-ccl_device void kernel_path_subsurface_accum_indirect(
-        ccl_addr_space SubsurfaceIndirectRays *ss_indirect,
-        PathRadiance *L)
-{
-	if(ss_indirect->tracing) {
-		path_radiance_sum_indirect(L);
-		path_radiance_accum_sample(&ss_indirect->direct_L, L, 1);
-		if(ss_indirect->num_rays == 0) {
-			*L = ss_indirect->direct_L;
-		}
-	}
-}
-
 ccl_device void kernel_path_subsurface_setup_indirect(
         KernelGlobals *kg,
         ccl_addr_space SubsurfaceIndirectRays *ss_indirect,
@@ -162,20 +136,15 @@ ccl_device void kernel_path_subsurface_setup_indirect(
         PathRadiance *L,
         ccl_addr_space float3 *throughput)
 {
-	if(!ss_indirect->tracing) {
-		ss_indirect->direct_L = *L;
-	}
-	ss_indirect->tracing = true;
-
 	/* Setup state, ray and throughput for indirect SSS rays. */
 	ss_indirect->num_rays--;
 
-	ccl_addr_space Ray *indirect_ray = &ss_indirect->rays[ss_indirect->num_rays];
-	PathRadiance *indirect_L = &ss_indirect->L[ss_indirect->num_rays];
+	path_radiance_sum_indirect(L);
+	path_radiance_reset_indirect(L);
 
 	*state = ss_indirect->state[ss_indirect->num_rays];
-	*ray = *indirect_ray;
-	*L = *indirect_L;
+	*ray = ss_indirect->rays[ss_indirect->num_rays];
+	L->state = ss_indirect->L_state[ss_indirect->num_rays];
 	*throughput = ss_indirect->throughputs[ss_indirect->num_rays];
 
 	state->rng_offset += ss_indirect->num_rays * PRNG_BOUNCE_NUM;
diff --git a/intern/cycles/kernel/kernel_path_surface.h b/intern/cycles/kernel/kernel_path_surface.h
index dcb577e176f..7b566b01b04 100644
--- a/intern/cycles/kernel/kernel_path_surface.h
+++ b/intern/cycles/kernel/kernel_path_surface.h
@@ -20,7 +20,6 @@ CCL_NAMESPACE_BEGIN
 /* branched path tracing: connect path directly to position on one or more lights and add it to L */
 ccl_device_noinline void kernel_branched_path_surface_connect_light(
         KernelGlobals *kg,
-        RNG *rng,
         ShaderData *sd,
         ShaderData *emission_sd,
         ccl_addr_space PathState *state,
@@ -50,12 +49,12 @@ ccl_device_noinline void kernel_branched_path_surface_connect_light(
 
 			int num_samples = ceil_to_int(num_samples_adjust*light_select_num_samples(kg, i));
 			float num_samples_inv = num_samples_adjust/(num_samples*kernel_data.integrator.num_all_lights);
-			RNG lamp_rng = cmj_hash(*rng, i);
+			uint lamp_rng_hash = cmj_hash(state->rng_hash, i);
 
 			for(int j = 0; j < num_samples; j++) {
 				float light_u, light_v;
-				path_branched_rng_2D(kg, &lamp_rng, state, j, num_samples, PRNG_LIGHT_U, &light_u, &light_v);
-				float terminate = path_branched_rng_light_termination(kg, &lamp_rng, state, j, num_samples);
+				path_branched_rng_2D(kg, lamp_rng_hash, state, j, num_samples, PRNG_LIGHT_U, &light_u, &light_v);
+				float terminate = path_branched_rng_light_termination(kg, lamp_rng_hash, state, j, num_samples);
 
 				LightSample ls;
 				if(lamp_light_sample(kg, i, light_u, light_v, sd->P, &ls)) {
@@ -68,7 +67,7 @@ ccl_device_noinline void kernel_branched_path_surface_connect_light(
 						/* trace shadow ray */
 						float3 shadow;
 
-						if(!shadow_blocked(kg, emission_sd, state, &light_ray, &shadow)) {
+						if(!shadow_blocked(kg, sd, emission_sd, state, &light_ray, &shadow)) {
 							/* accumulate */
 							path_radiance_accum_light(L, state, throughput*num_samples_inv, &L_light, shadow, num_samples_inv, is_lamp);
 						}
@@ -86,17 +85,16 @@ ccl_device_noinline void kernel_branched_path_surface_connect_light(
 			float num_samples_inv = num_samples_adjust/num_samples;
 
 			for(int j = 0; j < num_samples; j++) {
-				float light_t = path_branched_rng_1D(kg, rng, state, j, num_samples, PRNG_LIGHT);
 				float light_u, light_v;
-				path_branched_rng_2D(kg, rng, state, j, num_samples, PRNG_LIGHT_U, &light_u, &light_v);
-				float terminate = path_branched_rng_light_termination(kg, rng, state, j, num_samples);
+				path_branched_rng_2D(kg, state->rng_hash, state, j, num_samples, PRNG_LIGHT_U, &light_u, &light_v);
+				float terminate = path_branched_rng_light_termination(kg, state->rng_hash, state, j, num_samples);
 
 				/* only sample triangle lights */
 				if(kernel_data.integrator.num_all_lights)
-					light_t = 0.5f*light_t;
+					light_u = 0.5f*light_u;
 
 				LightSample ls;
-				if(light_sample(kg, light_t, light_u, light_v, sd->time, sd->P, state->bounce, &ls)) {
+				if(light_sample(kg, light_u, light_v, sd->time, sd->P, state->bounce, &ls)) {
 					/* Same as above, probability needs to be corrected since the sampling was forced to select a mesh light. */
 					if(kernel_data.integrator.num_all_lights)
 						ls.pdf *= 2.0f;
@@ -105,7 +103,7 @@ ccl_device_noinline void kernel_branched_path_surface_connect_light(
 						/* trace shadow ray */
 						float3 shadow;
 
-						if(!shadow_blocked(kg, emission_sd, state, &light_ray, &shadow)) {
+						if(!shadow_blocked(kg, sd, emission_sd, state, &light_ray, &shadow)) {
 							/* accumulate */
 							path_radiance_accum_light(L, state, throughput*num_samples_inv, &L_light, shadow, num_samples_inv, is_lamp);
 						}
@@ -119,19 +117,18 @@ ccl_device_noinline void kernel_branched_path_surface_connect_light(
 	}
 	else {
 		/* sample one light at random */
-		float light_t = path_state_rng_1D(kg, rng, state, PRNG_LIGHT);
 		float light_u, light_v;
-		path_state_rng_2D(kg, rng, state, PRNG_LIGHT_U, &light_u, &light_v);
-		float terminate = path_state_rng_light_termination(kg, rng, state);
+		path_state_rng_2D(kg, state, PRNG_LIGHT_U, &light_u, &light_v);
+		float terminate = path_state_rng_light_termination(kg, state);
 
 		LightSample ls;
-		if(light_sample(kg, light_t, light_u, light_v, sd->time, sd->P, state->bounce, &ls)) {
+		if(light_sample(kg, light_u, light_v, sd->time, sd->P, state->bounce, &ls)) {
 			/* sample random light */
 			if(direct_emission(kg, sd, emission_sd, &ls, state, &light_ray, &L_light, &is_lamp, terminate)) {
 				/* trace shadow ray */
 				float3 shadow;
 
-				if(!shadow_blocked(kg, emission_sd, state, &light_ray, &shadow)) {
+				if(!shadow_blocked(kg, sd, emission_sd, state, &light_ray, &shadow)) {
 					/* accumulate */
 					path_radiance_accum_light(L, state, throughput*num_samples_adjust, &L_light, shadow, num_samples_adjust, is_lamp);
 				}
@@ -147,14 +144,13 @@ ccl_device_noinline void kernel_branched_path_surface_connect_light(
 /* branched path tracing: bounce off or through surface to with new direction stored in ray */
 ccl_device bool kernel_branched_path_surface_bounce(
         KernelGlobals *kg,
-        RNG *rng,
         ShaderData *sd,
         const ShaderClosure *sc,
         int sample,
         int num_samples,
         ccl_addr_space float3 *throughput,
         ccl_addr_space PathState *state,
-        PathRadiance *L,
+        PathRadianceState *L_state,
         ccl_addr_space Ray *ray,
         float sum_sample_weight)
 {
@@ -164,7 +160,7 @@ ccl_device bool kernel_branched_path_surface_bounce(
 	float3 bsdf_omega_in;
 	differential3 bsdf_domega_in;
 	float bsdf_u, bsdf_v;
-	path_branched_rng_2D(kg, rng, state, sample, num_samples, PRNG_BSDF_U, &bsdf_u, &bsdf_v);
+	path_branched_rng_2D(kg, state->rng_hash, state, sample, num_samples, PRNG_BSDF_U, &bsdf_u, &bsdf_v);
 	int label;
 
 	label = shader_bsdf_sample_closure(kg, sd, sc, bsdf_u, bsdf_v, &bsdf_eval,
@@ -174,7 +170,7 @@ ccl_device bool kernel_branched_path_surface_bounce(
 		return false;
 
 	/* modify throughput */
-	path_radiance_bsdf_bounce(L, throughput, &bsdf_eval, bsdf_pdf, state->bounce, label);
+	path_radiance_bsdf_bounce(kg, L_state, throughput, &bsdf_eval, bsdf_pdf, state->bounce, label);
 
 #ifdef __DENOISING_FEATURES__
 	state->denoising_feature_weight *= sc->sample_weight / (sum_sample_weight * num_samples);
@@ -217,7 +213,7 @@ ccl_device bool kernel_branched_path_surface_bounce(
 #endif
 
 /* path tracing: connect path directly to position on a light and add it to L */
-ccl_device_inline void kernel_path_surface_connect_light(KernelGlobals *kg, RNG *rng,
+ccl_device_inline void kernel_path_surface_connect_light(KernelGlobals *kg,
 	ShaderData *sd, ShaderData *emission_sd, float3 throughput, ccl_addr_space PathState *state,
 	PathRadiance *L)
 {
@@ -228,7 +224,6 @@ ccl_device_inline void kernel_path_surface_connect_light(KernelGlobals *kg, RNG
 #ifdef __SHADOW_TRICKS__
 	if(state->flag & PATH_RAY_SHADOW_CATCHER) {
 		kernel_branched_path_surface_connect_light(kg,
-		                                           rng,
 		                                           sd,
 		                                           emission_sd,
 		                                           state,
@@ -241,9 +236,8 @@ ccl_device_inline void kernel_path_surface_connect_light(KernelGlobals *kg, RNG
 #endif
 
 	/* sample illumination from lights to find path contribution */
-	float light_t = path_state_rng_1D(kg, rng, state, PRNG_LIGHT);
 	float light_u, light_v;
-	path_state_rng_2D(kg, rng, state, PRNG_LIGHT_U, &light_u, &light_v);
+	path_state_rng_2D(kg, state, PRNG_LIGHT_U, &light_u, &light_v);
 
 	Ray light_ray;
 	BsdfEval L_light;
@@ -254,13 +248,13 @@ ccl_device_inline void kernel_path_surface_connect_light(KernelGlobals *kg, RNG
 #endif
 
 	LightSample ls;
-	if(light_sample(kg, light_t, light_u, light_v, sd->time, sd->P, state->bounce, &ls)) {
-		float terminate = path_state_rng_light_termination(kg, rng, state);
+	if(light_sample(kg, light_u, light_v, sd->time, sd->P, state->bounce, &ls)) {
+		float terminate = path_state_rng_light_termination(kg, state);
 		if(direct_emission(kg, sd, emission_sd, &ls, state, &light_ray, &L_light, &is_lamp, terminate)) {
 			/* trace shadow ray */
 			float3 shadow;
 
-			if(!shadow_blocked(kg, emission_sd, state, &light_ray, &shadow)) {
+			if(!shadow_blocked(kg, sd, emission_sd, state, &light_ray, &shadow)) {
 				/* accumulate */
 				path_radiance_accum_light(L, state, throughput, &L_light, shadow, 1.0f, is_lamp);
 			}
@@ -274,11 +268,10 @@ ccl_device_inline void kernel_path_surface_connect_light(KernelGlobals *kg, RNG
 
 /* path tracing: bounce off or through surface to with new direction stored in ray */
 ccl_device bool kernel_path_surface_bounce(KernelGlobals *kg,
-                                           RNG *rng,
                                            ShaderData *sd,
                                            ccl_addr_space float3 *throughput,
                                            ccl_addr_space PathState *state,
-                                           PathRadiance *L,
+                                           PathRadianceState *L_state,
                                            ccl_addr_space Ray *ray)
 {
 	/* no BSDF? we can stop here */
@@ -289,7 +282,7 @@ ccl_device bool kernel_path_surface_bounce(KernelGlobals *kg,
 		float3 bsdf_omega_in;
 		differential3 bsdf_domega_in;
 		float bsdf_u, bsdf_v;
-		path_state_rng_2D(kg, rng, state, PRNG_BSDF_U, &bsdf_u, &bsdf_v);
+		path_state_rng_2D(kg, state, PRNG_BSDF_U, &bsdf_u, &bsdf_v);
 		int label;
 
 		label = shader_bsdf_sample(kg, sd, bsdf_u, bsdf_v, &bsdf_eval,
@@ -299,7 +292,7 @@ ccl_device bool kernel_path_surface_bounce(KernelGlobals *kg,
 			return false;
 
 		/* modify throughput */
-		path_radiance_bsdf_bounce(L, throughput, &bsdf_eval, bsdf_pdf, state->bounce, label);
+		path_radiance_bsdf_bounce(kg, L_state, throughput, &bsdf_eval, bsdf_pdf, state->bounce, label);
 
 		/* set labels */
 		if(!(label & LABEL_TRANSPARENT)) {
diff --git a/intern/cycles/kernel/kernel_path_volume.h b/intern/cycles/kernel/kernel_path_volume.h
index dcedf51e479..b6a856baf24 100644
--- a/intern/cycles/kernel/kernel_path_volume.h
+++ b/intern/cycles/kernel/kernel_path_volume.h
@@ -20,7 +20,6 @@ CCL_NAMESPACE_BEGIN
 
 ccl_device_inline void kernel_path_volume_connect_light(
         KernelGlobals *kg,
-        RNG *rng,
         ShaderData *sd,
         ShaderData *emission_sd,
         float3 throughput,
@@ -32,9 +31,8 @@ ccl_device_inline void kernel_path_volume_connect_light(
 		return;
 
 	/* sample illumination from lights to find path contribution */
-	float light_t = path_state_rng_1D(kg, rng, state, PRNG_LIGHT);
 	float light_u, light_v;
-	path_state_rng_2D(kg, rng, state, PRNG_LIGHT_U, &light_u, &light_v);
+	path_state_rng_2D(kg, state, PRNG_LIGHT_U, &light_u, &light_v);
 
 	Ray light_ray;
 	BsdfEval L_light;
@@ -42,18 +40,16 @@ ccl_device_inline void kernel_path_volume_connect_light(
 	bool is_lamp;
 
 	/* connect to light from given point where shader has been evaluated */
-#  ifdef __OBJECT_MOTION__
 	light_ray.time = sd->time;
-#  endif
 
-	if(light_sample(kg, light_t, light_u, light_v, sd->time, sd->P, state->bounce, &ls))
+	if(light_sample(kg, light_u, light_v, sd->time, sd->P, state->bounce, &ls))
 	{
-		float terminate = path_state_rng_light_termination(kg, rng, state);
+		float terminate = path_state_rng_light_termination(kg, state);
 		if(direct_emission(kg, sd, emission_sd, &ls, state, &light_ray, &L_light, &is_lamp, terminate)) {
 			/* trace shadow ray */
 			float3 shadow;
 
-			if(!shadow_blocked(kg, emission_sd, state, &light_ray, &shadow)) {
+			if(!shadow_blocked(kg, sd, emission_sd, state, &light_ray, &shadow)) {
 				/* accumulate */
 				path_radiance_accum_light(L, state, throughput, &L_light, shadow, 1.0f, is_lamp);
 			}
@@ -69,11 +65,10 @@ ccl_device
 #endif
 bool kernel_path_volume_bounce(
     KernelGlobals *kg,
-    RNG *rng,
     ShaderData *sd,
     ccl_addr_space float3 *throughput,
     ccl_addr_space PathState *state,
-    PathRadiance *L,
+    PathRadianceState *L_state,
     ccl_addr_space Ray *ray)
 {
 	/* sample phase function */
@@ -82,7 +77,7 @@ bool kernel_path_volume_bounce(
 	float3 phase_omega_in;
 	differential3 phase_domega_in;
 	float phase_u, phase_v;
-	path_state_rng_2D(kg, rng, state, PRNG_PHASE_U, &phase_u, &phase_v);
+	path_state_rng_2D(kg, state, PRNG_BSDF_U, &phase_u, &phase_v);
 	int label;
 
 	label = shader_volume_phase_sample(kg, sd, phase_u, phase_v, &phase_eval,
@@ -92,7 +87,7 @@ bool kernel_path_volume_bounce(
 		return false;
 	
 	/* modify throughput */
-	path_radiance_bsdf_bounce(L, throughput, &phase_eval, phase_pdf, state->bounce, label);
+	path_radiance_bsdf_bounce(kg, L_state, throughput, &phase_eval, phase_pdf, state->bounce, label);
 
 	/* set labels */
 	state->ray_pdf = phase_pdf;
@@ -120,7 +115,6 @@ bool kernel_path_volume_bounce(
 #ifndef __SPLIT_KERNEL__
 ccl_device void kernel_branched_path_volume_connect_light(
         KernelGlobals *kg,
-        RNG *rng,
         ShaderData *sd,
         ShaderData *emission_sd,
         float3 throughput,
@@ -138,9 +132,7 @@ ccl_device void kernel_branched_path_volume_connect_light(
 	BsdfEval L_light;
 	bool is_lamp;
 
-#  ifdef __OBJECT_MOTION__
 	light_ray.time = sd->time;
-#  endif
 
 	if(sample_all_lights) {
 		/* lamp sampling */
@@ -150,12 +142,12 @@ ccl_device void kernel_branched_path_volume_connect_light(
 
 			int num_samples = light_select_num_samples(kg, i);
 			float num_samples_inv = 1.0f/(num_samples*kernel_data.integrator.num_all_lights);
-			RNG lamp_rng = cmj_hash(*rng, i);
+			uint lamp_rng_hash = cmj_hash(state->rng_hash, i);
 
 			for(int j = 0; j < num_samples; j++) {
 				/* sample random position on given light */
 				float light_u, light_v;
-				path_branched_rng_2D(kg, &lamp_rng, state, j, num_samples, PRNG_LIGHT_U, &light_u, &light_v);
+				path_branched_rng_2D(kg, lamp_rng_hash, state, j, num_samples, PRNG_LIGHT_U, &light_u, &light_v);
 
 				LightSample ls;
 				lamp_light_sample(kg, i, light_u, light_v, ray->P, &ls);
@@ -163,26 +155,24 @@ ccl_device void kernel_branched_path_volume_connect_light(
 				float3 tp = throughput;
 
 				/* sample position on volume segment */
-				float rphase = path_branched_rng_1D_for_decision(kg, rng, state, j, num_samples, PRNG_PHASE);
-				float rscatter = path_branched_rng_1D_for_decision(kg, rng, state, j, num_samples, PRNG_SCATTER_DISTANCE);
+				float rphase = path_branched_rng_1D(kg, state->rng_hash, state, j, num_samples, PRNG_PHASE_CHANNEL);
+				float rscatter = path_branched_rng_1D(kg, state->rng_hash, state, j, num_samples, PRNG_SCATTER_DISTANCE);
 
 				VolumeIntegrateResult result = kernel_volume_decoupled_scatter(kg,
 					state, ray, sd, &tp, rphase, rscatter, segment, (ls.t != FLT_MAX)? &ls.P: NULL, false);
 
-				(void)result;
-				kernel_assert(result == VOLUME_PATH_SCATTERED);
-
 				/* todo: split up light_sample so we don't have to call it again with new position */
-				if(lamp_light_sample(kg, i, light_u, light_v, sd->P, &ls)) {
+				if(result == VOLUME_PATH_SCATTERED &&
+				   lamp_light_sample(kg, i, light_u, light_v, sd->P, &ls)) {
 					if(kernel_data.integrator.pdf_triangles != 0.0f)
 						ls.pdf *= 2.0f;
 
-					float terminate = path_branched_rng_light_termination(kg, rng, state, j, num_samples);
+					float terminate = path_branched_rng_light_termination(kg, state->rng_hash, state, j, num_samples);
 					if(direct_emission(kg, sd, emission_sd, &ls, state, &light_ray, &L_light, &is_lamp, terminate)) {
 						/* trace shadow ray */
 						float3 shadow;
 
-						if(!shadow_blocked(kg, emission_sd, state, &light_ray, &shadow)) {
+						if(!shadow_blocked(kg, sd, emission_sd, state, &light_ray, &shadow)) {
 							/* accumulate */
 							path_radiance_accum_light(L, state, tp*num_samples_inv, &L_light, shadow, num_samples_inv, is_lamp);
 						}
@@ -198,40 +188,37 @@ ccl_device void kernel_branched_path_volume_connect_light(
 
 			for(int j = 0; j < num_samples; j++) {
 				/* sample random position on random triangle */
-				float light_t = path_branched_rng_1D_for_decision(kg, rng, state, j, num_samples, PRNG_LIGHT);
 				float light_u, light_v;
-				path_branched_rng_2D(kg, rng, state, j, num_samples, PRNG_LIGHT_U, &light_u, &light_v);
+				path_branched_rng_2D(kg, state->rng_hash, state, j, num_samples, PRNG_LIGHT_U, &light_u, &light_v);
 
 				/* only sample triangle lights */
 				if(kernel_data.integrator.num_all_lights)
-					light_t = 0.5f*light_t;
+					light_u = 0.5f*light_u;
 
 				LightSample ls;
-				light_sample(kg, light_t, light_u, light_v, sd->time, ray->P, state->bounce, &ls);
+				light_sample(kg, light_u, light_v, sd->time, ray->P, state->bounce, &ls);
 
 				float3 tp = throughput;
 
 				/* sample position on volume segment */
-				float rphase = path_branched_rng_1D_for_decision(kg, rng, state, j, num_samples, PRNG_PHASE);
-				float rscatter = path_branched_rng_1D_for_decision(kg, rng, state, j, num_samples, PRNG_SCATTER_DISTANCE);
+				float rphase = path_branched_rng_1D(kg, state->rng_hash, state, j, num_samples, PRNG_PHASE_CHANNEL);
+				float rscatter = path_branched_rng_1D(kg, state->rng_hash, state, j, num_samples, PRNG_SCATTER_DISTANCE);
 
 				VolumeIntegrateResult result = kernel_volume_decoupled_scatter(kg,
 					state, ray, sd, &tp, rphase, rscatter, segment, (ls.t != FLT_MAX)? &ls.P: NULL, false);
 					
-				(void)result;
-				kernel_assert(result == VOLUME_PATH_SCATTERED);
-
 				/* todo: split up light_sample so we don't have to call it again with new position */
-				if(light_sample(kg, light_t, light_u, light_v, sd->time, sd->P, state->bounce, &ls)) {
+				if(result == VOLUME_PATH_SCATTERED &&
+				   light_sample(kg, light_u, light_v, sd->time, sd->P, state->bounce, &ls)) {
 					if(kernel_data.integrator.num_all_lights)
 						ls.pdf *= 2.0f;
 
-					float terminate = path_branched_rng_light_termination(kg, rng, state, j, num_samples);
+					float terminate = path_branched_rng_light_termination(kg, state->rng_hash, state, j, num_samples);
 					if(direct_emission(kg, sd, emission_sd, &ls, state, &light_ray, &L_light, &is_lamp, terminate)) {
 						/* trace shadow ray */
 						float3 shadow;
 
-						if(!shadow_blocked(kg, emission_sd, state, &light_ray, &shadow)) {
+						if(!shadow_blocked(kg, sd, emission_sd, state, &light_ray, &shadow)) {
 							/* accumulate */
 							path_radiance_accum_light(L, state, tp*num_samples_inv, &L_light, shadow, num_samples_inv, is_lamp);
 						}
@@ -242,34 +229,31 @@ ccl_device void kernel_branched_path_volume_connect_light(
 	}
 	else {
 		/* sample random position on random light */
-		float light_t = path_state_rng_1D(kg, rng, state, PRNG_LIGHT);
 		float light_u, light_v;
-		path_state_rng_2D(kg, rng, state, PRNG_LIGHT_U, &light_u, &light_v);
+		path_state_rng_2D(kg, state, PRNG_LIGHT_U, &light_u, &light_v);
 
 		LightSample ls;
-		light_sample(kg, light_t, light_u, light_v, sd->time, ray->P, state->bounce, &ls);
+		light_sample(kg, light_u, light_v, sd->time, ray->P, state->bounce, &ls);
 
 		float3 tp = throughput;
 
 		/* sample position on volume segment */
-		float rphase = path_state_rng_1D_for_decision(kg, rng, state, PRNG_PHASE);
-		float rscatter = path_state_rng_1D_for_decision(kg, rng, state, PRNG_SCATTER_DISTANCE);
+		float rphase = path_state_rng_1D(kg, state, PRNG_PHASE_CHANNEL);
+		float rscatter = path_state_rng_1D(kg, state, PRNG_SCATTER_DISTANCE);
 
 		VolumeIntegrateResult result = kernel_volume_decoupled_scatter(kg,
 			state, ray, sd, &tp, rphase, rscatter, segment, (ls.t != FLT_MAX)? &ls.P: NULL, false);
 			
-		(void)result;
-		kernel_assert(result == VOLUME_PATH_SCATTERED);
-
 		/* todo: split up light_sample so we don't have to call it again with new position */
-		if(light_sample(kg, light_t, light_u, light_v, sd->time, sd->P, state->bounce, &ls)) {
+		if(result == VOLUME_PATH_SCATTERED &&
+		   light_sample(kg, light_u, light_v, sd->time, sd->P, state->bounce, &ls)) {
 			/* sample random light */
-			float terminate = path_state_rng_light_termination(kg, rng, state);
+			float terminate = path_state_rng_light_termination(kg, state);
 			if(direct_emission(kg, sd, emission_sd, &ls, state, &light_ray, &L_light, &is_lamp, terminate)) {
 				/* trace shadow ray */
 				float3 shadow;
 
-				if(!shadow_blocked(kg, emission_sd, state, &light_ray, &shadow)) {
+				if(!shadow_blocked(kg, sd, emission_sd, state, &light_ray, &shadow)) {
 					/* accumulate */
 					path_radiance_accum_light(L, state, tp, &L_light, shadow, 1.0f, is_lamp);
 				}
diff --git a/intern/cycles/kernel/kernel_random.h b/intern/cycles/kernel/kernel_random.h
index e8a912ccc0b..11798d87cb5 100644
--- a/intern/cycles/kernel/kernel_random.h
+++ b/intern/cycles/kernel/kernel_random.h
@@ -18,55 +18,18 @@
 
 CCL_NAMESPACE_BEGIN
 
-#ifdef __SOBOL__
-
-/* Skip initial numbers that are not as well distributed, especially the
- * first sequence is just 0 everywhere, which can be problematic for e.g.
- * path termination.
- */
-#define SOBOL_SKIP 64
+/* Pseudo random numbers, uncomment this for debugging correlations. Only run
+ * this single threaded on a CPU for repeatable resutls. */
+//#define __DEBUG_CORRELATION__
 
-/* High Dimensional Sobol. */
 
-/* Van der Corput radical inverse. */
-ccl_device uint van_der_corput(uint bits)
-{
-	bits = (bits << 16) | (bits >> 16);
-	bits = ((bits & 0x00ff00ff) << 8) | ((bits & 0xff00ff00) >> 8);
-	bits = ((bits & 0x0f0f0f0f) << 4) | ((bits & 0xf0f0f0f0) >> 4);
-	bits = ((bits & 0x33333333) << 2) | ((bits & 0xcccccccc) >> 2);
-	bits = ((bits & 0x55555555) << 1) | ((bits & 0xaaaaaaaa) >> 1);
-	return bits;
-}
-
-/* Sobol radical inverse. */
-ccl_device uint sobol(uint i)
-{
-	uint r = 0;
-	for(uint v = 1U << 31; i; i >>= 1, v ^= v >> 1) {
-		if(i & 1) {
-			r ^= v;
-		}
-	}
-	return r;
-}
+/* High Dimensional Sobol.
+ *
+ * Multidimensional sobol with generator matrices. Dimension 0 and 1 are equal
+ * to classic Van der Corput and Sobol sequences. */
 
-/* Inverse of sobol radical inverse. */
-ccl_device uint sobol_inverse(uint i)
-{
-	const uint msb = 1U << 31;
-	uint r = 0;
-	for(uint v = 1; i; i <<= 1, v ^= v << 1) {
-		if(i & msb) {
-			r ^= v;
-		}
-	}
-	return r;
-}
+#ifdef __SOBOL__
 
-/* Multidimensional sobol with generator matrices
- * dimension 0 and 1 are equal to van_der_corput() and sobol() respectively.
- */
 ccl_device uint sobol_dimension(KernelGlobals *kg, int index, int dimension)
 {
 	uint result = 0;
@@ -79,51 +42,32 @@ ccl_device uint sobol_dimension(KernelGlobals *kg, int index, int dimension)
 	return result;
 }
 
-/* Lookup index and x/y coordinate, assumes m is a power of two. */
-ccl_device uint sobol_lookup(const uint m,
-                             const uint frame,
-                             const uint ex,
-                             const uint ey,
-                             uint *x, uint *y)
-{
-	/* Shift is constant per frame. */
-	const uint shift = frame << (m << 1);
-	const uint sobol_shift = sobol(shift);
-	/* Van der Corput is its own inverse. */
-	const uint lower = van_der_corput(ex << (32 - m));
-	/* Need to compensate for ey difference and shift. */
-	const uint sobol_lower = sobol(lower);
-	const uint mask = ~-(1 << m) << (32 - m);  /* Only m upper bits. */
-	const uint delta = ((ey << (32 - m)) ^ sobol_lower ^ sobol_shift) & mask;
-	/* Only use m upper bits for the index (m is a power of two). */
-	const uint sobol_result = delta | (delta >> m);
-	const uint upper = sobol_inverse(sobol_result);
-	const uint index = shift | upper | lower;
-	*x = van_der_corput(index);
-	*y = sobol_shift ^ sobol_result ^ sobol_lower;
-	return index;
-}
+#endif /* __SOBOL__ */
+
 
 ccl_device_forceinline float path_rng_1D(KernelGlobals *kg,
-                                         RNG *rng,
+                                         uint rng_hash,
                                          int sample, int num_samples,
                                          int dimension)
 {
+#ifdef __DEBUG_CORRELATION__
+	return (float)drand48();
+#endif
+
 #ifdef __CMJ__
-	if(kernel_data.integrator.sampling_pattern == SAMPLING_PATTERN_CMJ) {
+#  ifdef __SOBOL__
+	if(kernel_data.integrator.sampling_pattern == SAMPLING_PATTERN_CMJ)
+#  endif
+	{
 		/* Correlated multi-jitter. */
-		int p = *rng + dimension;
+		int p = rng_hash + dimension;
 		return cmj_sample_1D(sample, num_samples, p);
 	}
 #endif
 
-#ifdef __SOBOL_FULL_SCREEN__
-	uint result = sobol_dimension(kg, *rng, dimension);
-	float r = (float)result * (1.0f/(float)0xFFFFFFFF);
-	return r;
-#else
-	/* Compute sobol sequence value using direction vectors. */
-	uint result = sobol_dimension(kg, sample + SOBOL_SKIP, dimension);
+#ifdef __SOBOL__
+	/* Sobol sequence value using direction vectors. */
+	uint result = sobol_dimension(kg, sample, dimension);
 	float r = (float)result * (1.0f/(float)0xFFFFFFFF);
 
 	/* Cranly-Patterson rotation using rng seed */
@@ -132,7 +76,7 @@ ccl_device_forceinline float path_rng_1D(KernelGlobals *kg,
 	/* Hash rng with dimension to solve correlation issues.
 	 * See T38710, T50116.
 	 */
-	RNG tmp_rng = cmj_hash_simple(dimension, *rng);
+	uint tmp_rng = cmj_hash_simple(dimension, rng_hash);
 	shift = tmp_rng * (1.0f/(float)0xFFFFFFFF);
 
 	return r + shift - floorf(r + shift);
@@ -140,128 +84,60 @@ ccl_device_forceinline float path_rng_1D(KernelGlobals *kg,
 }
 
 ccl_device_forceinline void path_rng_2D(KernelGlobals *kg,
-                                        RNG *rng,
+                                        uint rng_hash,
                                         int sample, int num_samples,
                                         int dimension,
                                         float *fx, float *fy)
 {
+#ifdef __DEBUG_CORRELATION__
+	*fx = (float)drand48();
+	*fy = (float)drand48();
+	return;
+#endif
+
 #ifdef __CMJ__
-	if(kernel_data.integrator.sampling_pattern == SAMPLING_PATTERN_CMJ) {
+#  ifdef __SOBOL__
+	if(kernel_data.integrator.sampling_pattern == SAMPLING_PATTERN_CMJ)
+#  endif
+	{
 		/* Correlated multi-jitter. */
-		int p = *rng + dimension;
+		int p = rng_hash + dimension;
 		cmj_sample_2D(sample, num_samples, p, fx, fy);
+		return;
 	}
-	else
 #endif
-	{
-		/* Sobol. */
-		*fx = path_rng_1D(kg, rng, sample, num_samples, dimension);
-		*fy = path_rng_1D(kg, rng, sample, num_samples, dimension + 1);
-	}
+
+#ifdef __SOBOL__
+	/* Sobol. */
+	*fx = path_rng_1D(kg, rng_hash, sample, num_samples, dimension);
+	*fy = path_rng_1D(kg, rng_hash, sample, num_samples, dimension + 1);
+#endif
 }
 
 ccl_device_inline void path_rng_init(KernelGlobals *kg,
                                      ccl_global uint *rng_state,
                                      int sample, int num_samples,
-                                     RNG *rng,
+                                     uint *rng_hash,
                                      int x, int y,
                                      float *fx, float *fy)
 {
-#ifdef __SOBOL_FULL_SCREEN__
-	uint px, py;
-	uint bits = 16; /* limits us to 65536x65536 and 65536 samples */
-	uint size = 1 << bits;
-	uint frame = sample;
-
-	*rng = sobol_lookup(bits, frame, x, y, &px, &py);
-
-	*rng ^= kernel_data.integrator.seed;
-
-	if(sample == 0) {
-		*fx = 0.5f;
-		*fy = 0.5f;
-	}
-	else {
-		*fx = size * (float)px * (1.0f/(float)0xFFFFFFFF) - x;
-		*fy = size * (float)py * (1.0f/(float)0xFFFFFFFF) - y;
-	}
-#else
-	*rng = *rng_state;
-
-	*rng ^= kernel_data.integrator.seed;
-
-	if(sample == 0) {
-		*fx = 0.5f;
-		*fy = 0.5f;
-	}
-	else {
-		path_rng_2D(kg, rng, sample, num_samples, PRNG_FILTER_U, fx, fy);
-	}
-#endif
-}
-
-ccl_device void path_rng_end(KernelGlobals *kg,
-                             ccl_global uint *rng_state,
-                             RNG rng)
-{
-	/* nothing to do */
-}
-
-#else  /* __SOBOL__ */
-
-/* Linear Congruential Generator */
-
-ccl_device_forceinline float path_rng_1D(KernelGlobals *kg,
-                                         RNG *rng,
-                                         int sample, int num_samples,
-                                         int dimension)
-{
-	/* implicit mod 2^32 */
-	*rng = (1103515245*(*rng) + 12345);
-	return (float)*rng * (1.0f/(float)0xFFFFFFFF);
-}
-
-ccl_device_inline void path_rng_2D(KernelGlobals *kg,
-                                   RNG *rng,
-                                   int sample, int num_samples,
-                                   int dimension,
-                                   float *fx, float *fy)
-{
-	*fx = path_rng_1D(kg, rng, sample, num_samples, dimension);
-	*fy = path_rng_1D(kg, rng, sample, num_samples, dimension + 1);
-}
-
-ccl_device void path_rng_init(KernelGlobals *kg,
-                              ccl_global uint *rng_state,
-                              int sample, int num_samples,
-                              RNG *rng,
-                              int x, int y,
-                              float *fx, float *fy)
-{
 	/* load state */
-	*rng = *rng_state;
+	*rng_hash = *rng_state;
+	*rng_hash ^= kernel_data.integrator.seed;
 
-	*rng ^= kernel_data.integrator.seed;
+#ifdef __DEBUG_CORRELATION__
+	srand48(*rng_hash + sample);
+#endif
 
 	if(sample == 0) {
 		*fx = 0.5f;
 		*fy = 0.5f;
 	}
 	else {
-		path_rng_2D(kg, rng, sample, num_samples, PRNG_FILTER_U, fx, fy);
+		path_rng_2D(kg, *rng_hash, sample, num_samples, PRNG_FILTER_U, fx, fy);
 	}
 }
 
-ccl_device void path_rng_end(KernelGlobals *kg,
-                             ccl_global uint *rng_state,
-                             RNG rng)
-{
-	/* store state for next sample */
-	*rng_state = rng;
-}
-
-#endif  /* __SOBOL__ */
-
 /* Linear Congruential Generator */
 
 ccl_device uint lcg_step_uint(uint *rng)
@@ -295,44 +171,22 @@ ccl_device uint lcg_init(uint seed)
  */
 
 ccl_device_inline float path_state_rng_1D(KernelGlobals *kg,
-                                          RNG *rng,
                                           const ccl_addr_space PathState *state,
                                           int dimension)
 {
 	return path_rng_1D(kg,
-	                   rng,
+	                   state->rng_hash,
 	                   state->sample, state->num_samples,
 	                   state->rng_offset + dimension);
 }
 
-ccl_device_inline float path_state_rng_1D_for_decision(
-        KernelGlobals *kg,
-        RNG *rng,
-        const ccl_addr_space PathState *state,
-        int dimension)
-{
-	/* The rng_offset is not increased for transparent bounces. if we do then
-	 * fully transparent objects can become subtly visible by the different
-	 * sampling patterns used where the transparent object is.
-	 *
-	 * however for some random numbers that will determine if we next bounce
-	 * is transparent we do need to increase the offset to avoid always making
-	 * the same decision. */
-	const int rng_offset = state->rng_offset + state->transparent_bounce * PRNG_BOUNCE_NUM;
-	return path_rng_1D(kg,
-	                   rng,
-	                   state->sample, state->num_samples,
-	                   rng_offset + dimension);
-}
-
 ccl_device_inline void path_state_rng_2D(KernelGlobals *kg,
-                                         RNG *rng,
                                          const ccl_addr_space PathState *state,
                                          int dimension,
                                          float *fx, float *fy)
 {
 	path_rng_2D(kg,
-	            rng,
+	            state->rng_hash,
 	            state->sample, state->num_samples,
 	            state->rng_offset + dimension,
 	            fx, fy);
@@ -340,38 +194,22 @@ ccl_device_inline void path_state_rng_2D(KernelGlobals *kg,
 
 ccl_device_inline float path_branched_rng_1D(
         KernelGlobals *kg,
-        RNG *rng,
+        uint rng_hash,
         const ccl_addr_space PathState *state,
         int branch,
         int num_branches,
         int dimension)
 {
 	return path_rng_1D(kg,
-	                   rng,
+	                   rng_hash,
 	                   state->sample * num_branches + branch,
 	                   state->num_samples * num_branches,
 	                   state->rng_offset + dimension);
 }
 
-ccl_device_inline float path_branched_rng_1D_for_decision(
-        KernelGlobals *kg,
-        RNG *rng,
-        const ccl_addr_space PathState *state,
-        int branch,
-        int num_branches,
-        int dimension)
-{
-	const int rng_offset = state->rng_offset + state->transparent_bounce * PRNG_BOUNCE_NUM;
-	return path_rng_1D(kg,
-	                   rng,
-	                   state->sample * num_branches + branch,
-	                   state->num_samples * num_branches,
-	                   rng_offset + dimension);
-}
-
 ccl_device_inline void path_branched_rng_2D(
         KernelGlobals *kg,
-        RNG *rng,
+        uint rng_hash,
         const ccl_addr_space PathState *state,
         int branch,
         int num_branches,
@@ -379,7 +217,7 @@ ccl_device_inline void path_branched_rng_2D(
         float *fx, float *fy)
 {
 	path_rng_2D(kg,
-	            rng,
+	            rng_hash,
 	            state->sample * num_branches + branch,
 	            state->num_samples * num_branches,
 	            state->rng_offset + dimension,
@@ -391,52 +229,45 @@ ccl_device_inline void path_branched_rng_2D(
  */
 ccl_device_inline float path_state_rng_light_termination(
         KernelGlobals *kg,
-        RNG *rng,
         const ccl_addr_space PathState *state)
 {
 	if(kernel_data.integrator.light_inv_rr_threshold > 0.0f) {
-		return path_state_rng_1D_for_decision(kg, rng, state, PRNG_LIGHT_TERMINATE);
+		return path_state_rng_1D(kg, state, PRNG_LIGHT_TERMINATE);
 	}
 	return 0.0f;
 }
 
 ccl_device_inline float path_branched_rng_light_termination(
         KernelGlobals *kg,
-        RNG *rng,
+        uint rng_hash,
         const ccl_addr_space PathState *state,
         int branch,
         int num_branches)
 {
 	if(kernel_data.integrator.light_inv_rr_threshold > 0.0f) {
-		return path_branched_rng_1D_for_decision(kg,
-		                                         rng,
-		                                         state,
-		                                         branch,
-		                                         num_branches,
-		                                         PRNG_LIGHT_TERMINATE);
+		return path_branched_rng_1D(kg,
+		                            rng_hash,
+		                            state,
+		                            branch,
+		                            num_branches,
+		                            PRNG_LIGHT_TERMINATE);
 	}
 	return 0.0f;
 }
 
-ccl_device_inline void path_state_branch(ccl_addr_space PathState *state,
-                                         int branch,
-                                         int num_branches)
+ccl_device_inline uint lcg_state_init(PathState *state,
+                                      uint scramble)
 {
-	/* path is splitting into a branch, adjust so that each branch
-	 * still gets a unique sample from the same sequence */
-	state->rng_offset += PRNG_BOUNCE_NUM;
-	state->sample = state->sample*num_branches + branch;
-	state->num_samples = state->num_samples*num_branches;
+	return lcg_init(state->rng_hash + state->rng_offset + state->sample*scramble);
 }
 
-ccl_device_inline uint lcg_state_init(RNG *rng,
-                                      int rng_offset,
-                                      int sample,
-                                      uint scramble)
+ccl_device_inline uint lcg_state_init_addrspace(ccl_addr_space PathState *state,
+                                                uint scramble)
 {
-	return lcg_init(*rng + rng_offset + sample*scramble);
+	return lcg_init(state->rng_hash + state->rng_offset + state->sample*scramble);
 }
 
+
 ccl_device float lcg_step_float_addrspace(ccl_addr_space uint *rng)
 {
 	/* Implicit mod 2^32 */
diff --git a/intern/cycles/kernel/kernel_shader.h b/intern/cycles/kernel/kernel_shader.h
index c66f52255f0..eeb4eb0097f 100644
--- a/intern/cycles/kernel/kernel_shader.h
+++ b/intern/cycles/kernel/kernel_shader.h
@@ -66,8 +66,8 @@ ccl_device_noinline void shader_setup_from_ray(KernelGlobals *kg,
 	/* matrices and time */
 #ifdef __OBJECT_MOTION__
 	shader_setup_object_transforms(kg, sd, ray->time);
-	sd->time = ray->time;
 #endif
+	sd->time = ray->time;
 
 	sd->prim = kernel_tex_fetch(__prim_index, isect->prim);
 	sd->ray_length = isect->t;
@@ -83,7 +83,7 @@ ccl_device_noinline void shader_setup_from_ray(KernelGlobals *kg,
 		float4 curvedata = kernel_tex_fetch(__curves, sd->prim);
 
 		sd->shader = __float_as_int(curvedata.z);
-		sd->P = bvh_curve_refine(kg, sd, isect, ray);
+		sd->P = curve_refine(kg, sd, isect, ray);
 	}
 	else
 #endif
@@ -271,17 +271,17 @@ ccl_device_inline void shader_setup_from_sample(KernelGlobals *kg,
 	sd->u = u;
 	sd->v = v;
 #endif
+	sd->time = time;
 	sd->ray_length = t;
 
 	sd->flag = kernel_tex_fetch(__shader_flag, (sd->shader & SHADER_MASK)*SHADER_SIZE);
 	sd->object_flag = 0;
 	if(sd->object != OBJECT_NONE) {
 		sd->object_flag |= kernel_tex_fetch(__object_flag,
-		                                               sd->object);
+		                                    sd->object);
 
 #ifdef __OBJECT_MOTION__
 		shader_setup_object_transforms(kg, sd, time);
-		sd->time = time;
 	}
 	else if(lamp != LAMP_NONE) {
 		sd->ob_tfm  = lamp_fetch_transform(kg, lamp, false);
@@ -385,9 +385,7 @@ ccl_device_inline void shader_setup_from_background(KernelGlobals *kg, ShaderDat
 	sd->shader = kernel_data.background.surface_shader;
 	sd->flag = kernel_tex_fetch(__shader_flag, (sd->shader & SHADER_MASK)*SHADER_SIZE);
 	sd->object_flag = 0;
-#ifdef __OBJECT_MOTION__
 	sd->time = ray->time;
-#endif
 	sd->ray_length = 0.0f;
 
 #ifdef __INSTANCING__
@@ -427,9 +425,7 @@ ccl_device_inline void shader_setup_from_volume(KernelGlobals *kg, ShaderData *s
 	sd->shader = SHADER_NONE;
 	sd->flag = 0;
 	sd->object_flag = 0;
-#ifdef __OBJECT_MOTION__
 	sd->time = ray->time;
-#endif
 	sd->ray_length = 0.0f; /* todo: can we set this to some useful value? */
 
 #ifdef __INSTANCING__
@@ -498,20 +494,45 @@ ccl_device_inline void shader_merge_closures(ShaderData *sd)
 }
 #endif
 
+/* Defensive sampling. */
+
+ccl_device_inline void shader_prepare_closures(ShaderData *sd,
+                                               ccl_addr_space PathState *state)
+{
+	/* We can likely also do defensive sampling at deeper bounces, particularly
+	 * for cases like a perfect mirror but possibly also others. This will need
+	 * a good heuristic. */
+	if(state->bounce + state->transparent_bounce == 0 && sd->num_closure > 1) {
+		float sum = 0.0f;
+
+		for(int i = 0; i < sd->num_closure; i++) {
+			ShaderClosure *sc = &sd->closure[i];
+			if(CLOSURE_IS_BSDF_OR_BSSRDF(sc->type)) {
+				sum += sc->sample_weight;
+			}
+		}
+
+		for(int i = 0; i < sd->num_closure; i++) {
+			ShaderClosure *sc = &sd->closure[i];
+			if(CLOSURE_IS_BSDF_OR_BSSRDF(sc->type)) {
+				sc->sample_weight = max(sc->sample_weight, 0.125f * sum);
+			}
+		}
+	}
+}
+
+
 /* BSDF */
 
 ccl_device_inline void _shader_bsdf_multi_eval(KernelGlobals *kg, ShaderData *sd, const float3 omega_in, float *pdf,
-	int skip_bsdf, BsdfEval *result_eval, float sum_pdf, float sum_sample_weight)
+	const ShaderClosure *skip_sc, BsdfEval *result_eval, float sum_pdf, float sum_sample_weight)
 {
 	/* this is the veach one-sample model with balance heuristic, some pdf
 	 * factors drop out when using balance heuristic weighting */
 	for(int i = 0; i < sd->num_closure; i++) {
-		if(i == skip_bsdf)
-			continue;
-
 		const ShaderClosure *sc = &sd->closure[i];
 
-		if(CLOSURE_IS_BSDF(sc->type)) {
+		if(sc != skip_sc && CLOSURE_IS_BSDF(sc->type)) {
 			float bsdf_pdf = 0.0f;
 			float3 eval = bsdf_eval(kg, sd, sc, omega_in, &bsdf_pdf);
 
@@ -574,7 +595,7 @@ void shader_bsdf_eval(KernelGlobals *kg,
 #endif
 	{
 		float pdf;
-		_shader_bsdf_multi_eval(kg, sd, omega_in, &pdf, -1, eval, 0.0f, 0.0f);
+		_shader_bsdf_multi_eval(kg, sd, omega_in, &pdf, NULL, eval, 0.0f, 0.0f);
 		if(use_mis) {
 			float weight = power_heuristic(light_pdf, pdf);
 			bsdf_eval_mis(eval, weight);
@@ -582,48 +603,120 @@ void shader_bsdf_eval(KernelGlobals *kg,
 	}
 }
 
-ccl_device_inline int shader_bsdf_sample(KernelGlobals *kg,
-                                         ShaderData *sd,
-                                         float randu, float randv,
-                                         BsdfEval *bsdf_eval,
-                                         float3 *omega_in,
-                                         differential3 *domega_in,
-                                         float *pdf)
+ccl_device_inline const ShaderClosure *shader_bsdf_pick(ShaderData *sd,
+                                                        float *randu)
 {
 	int sampled = 0;
 
 	if(sd->num_closure > 1) {
-		/* pick a BSDF closure based on sample weights */
+		/* Pick a BSDF or based on sample weights. */
 		float sum = 0.0f;
 
-		for(sampled = 0; sampled < sd->num_closure; sampled++) {
-			const ShaderClosure *sc = &sd->closure[sampled];
-			
-			if(CLOSURE_IS_BSDF(sc->type))
+		for(int i = 0; i < sd->num_closure; i++) {
+			const ShaderClosure *sc = &sd->closure[i];
+
+			if(CLOSURE_IS_BSDF(sc->type)) {
 				sum += sc->sample_weight;
+			}
 		}
 
-		float r = sd->randb_closure*sum;
-		sum = 0.0f;
+		float r = (*randu)*sum;
+		float partial_sum = 0.0f;
+
+		for(int i = 0; i < sd->num_closure; i++) {
+			const ShaderClosure *sc = &sd->closure[i];
 
-		for(sampled = 0; sampled < sd->num_closure; sampled++) {
-			const ShaderClosure *sc = &sd->closure[sampled];
-			
 			if(CLOSURE_IS_BSDF(sc->type)) {
-				sum += sc->sample_weight;
+				float next_sum = partial_sum + sc->sample_weight;
+
+				if(r < next_sum) {
+					sampled = i;
 
-				if(r <= sum)
+					/* Rescale to reuse for direction sample, to better
+					 * preserve stratifaction. */
+					*randu = (r - partial_sum) / sc->sample_weight;
 					break;
+				}
+
+				partial_sum = next_sum;
 			}
 		}
+	}
 
-		if(sampled == sd->num_closure) {
-			*pdf = 0.0f;
-			return LABEL_NONE;
+	return &sd->closure[sampled];
+}
+
+ccl_device_inline const ShaderClosure *shader_bssrdf_pick(ShaderData *sd,
+                                                          ccl_addr_space float3 *throughput,
+                                                          float *randu)
+{
+	int sampled = 0;
+
+	if(sd->num_closure > 1) {
+		/* Pick a BSDF or BSSRDF or based on sample weights. */
+		float sum_bsdf = 0.0f;
+		float sum_bssrdf = 0.0f;
+
+		for(int i = 0; i < sd->num_closure; i++) {
+			const ShaderClosure *sc = &sd->closure[i];
+
+			if(CLOSURE_IS_BSDF(sc->type)) {
+				sum_bsdf += sc->sample_weight;
+			}
+			else if(CLOSURE_IS_BSSRDF(sc->type)) {
+				sum_bssrdf += sc->sample_weight;
+			}
+		}
+
+		float r = (*randu)*(sum_bsdf + sum_bssrdf);
+		float partial_sum = 0.0f;
+
+		for(int i = 0; i < sd->num_closure; i++) {
+			const ShaderClosure *sc = &sd->closure[i];
+
+			if(CLOSURE_IS_BSDF_OR_BSSRDF(sc->type)) {
+				float next_sum = partial_sum + sc->sample_weight;
+
+				if(r < next_sum) {
+					if(CLOSURE_IS_BSDF(sc->type)) {
+						*throughput *= (sum_bsdf + sum_bssrdf) / sum_bsdf;
+						return NULL;
+					}
+					else {
+						*throughput *= (sum_bsdf + sum_bssrdf) / sum_bssrdf;
+						sampled = i;
+
+						/* Rescale to reuse for direction sample, to better
+						 * preserve stratifaction. */
+						*randu = (r - partial_sum) / sc->sample_weight;
+						break;
+					}
+				}
+
+				partial_sum = next_sum;
+			}
 		}
 	}
 
-	const ShaderClosure *sc = &sd->closure[sampled];
+	return &sd->closure[sampled];
+}
+
+ccl_device_inline int shader_bsdf_sample(KernelGlobals *kg,
+                                         ShaderData *sd,
+                                         float randu, float randv,
+                                         BsdfEval *bsdf_eval,
+                                         float3 *omega_in,
+                                         differential3 *domega_in,
+                                         float *pdf)
+{
+	const ShaderClosure *sc = shader_bsdf_pick(sd, &randu);
+	if(sc == NULL) {
+		*pdf = 0.0f;
+		return LABEL_NONE;
+	}
+
+	/* BSSRDF should already have been handled elsewhere. */
+	kernel_assert(CLOSURE_IS_BSDF(sc->type));
 
 	int label;
 	float3 eval;
@@ -636,7 +729,7 @@ ccl_device_inline int shader_bsdf_sample(KernelGlobals *kg,
 
 		if(sd->num_closure > 1) {
 			float sweight = sc->sample_weight;
-			_shader_bsdf_multi_eval(kg, sd, *omega_in, pdf, sampled, bsdf_eval, *pdf*sweight, sweight);
+			_shader_bsdf_multi_eval(kg, sd, *omega_in, pdf, sc, bsdf_eval, *pdf*sweight, sweight);
 		}
 	}
 
@@ -669,7 +762,7 @@ ccl_device void shader_bsdf_blur(KernelGlobals *kg, ShaderData *sd, float roughn
 	}
 }
 
-ccl_device float3 shader_bsdf_transparency(KernelGlobals *kg, ShaderData *sd)
+ccl_device float3 shader_bsdf_transparency(KernelGlobals *kg, const ShaderData *sd)
 {
 	if(sd->flag & SD_HAS_ONLY_VOLUME)
 		return make_float3(1.0f, 1.0f, 1.0f);
@@ -677,7 +770,7 @@ ccl_device float3 shader_bsdf_transparency(KernelGlobals *kg, ShaderData *sd)
 	float3 eval = make_float3(0.0f, 0.0f, 0.0f);
 
 	for(int i = 0; i < sd->num_closure; i++) {
-		ShaderClosure *sc = &sd->closure[i];
+		const ShaderClosure *sc = &sd->closure[i];
 
 		if(sc->type == CLOSURE_BSDF_TRANSPARENT_ID) // todo: make this work for osl
 			eval += sc->weight;
@@ -764,6 +857,19 @@ ccl_device float3 shader_bsdf_subsurface(KernelGlobals *kg, ShaderData *sd)
 	return eval;
 }
 
+ccl_device float3 shader_bsdf_average_normal(KernelGlobals *kg, ShaderData *sd)
+{
+	float3 N = make_float3(0.0f, 0.0f, 0.0f);
+
+	for(int i = 0; i < sd->num_closure; i++) {
+		ShaderClosure *sc = &sd->closure[i];
+		if(CLOSURE_IS_BSDF_OR_BSSRDF(sc->type))
+			N += sc->N*average(sc->weight);
+	}
+
+	return (is_zero(N))? sd->N : normalize(N);
+}
+
 ccl_device float3 shader_bsdf_ao(KernelGlobals *kg, ShaderData *sd, float ao_factor, float3 *N_)
 {
 	float3 eval = make_float3(0.0f, 0.0f, 0.0f);
@@ -783,12 +889,7 @@ ccl_device float3 shader_bsdf_ao(KernelGlobals *kg, ShaderData *sd, float ao_fac
 		}
 	}
 
-	if(is_zero(N))
-		N = sd->N;
-	else
-		N = normalize(N);
-
-	*N_ = N;
+	*N_ = (is_zero(N))? sd->N : normalize(N);
 	return eval;
 }
 
@@ -863,16 +964,15 @@ ccl_device float3 shader_holdout_eval(KernelGlobals *kg, ShaderData *sd)
 
 /* Surface Evaluation */
 
-ccl_device void shader_eval_surface(KernelGlobals *kg, ShaderData *sd, RNG *rng,
-	ccl_addr_space PathState *state, float randb, int path_flag, ShaderContext ctx)
+ccl_device void shader_eval_surface(KernelGlobals *kg, ShaderData *sd,
+	ccl_addr_space PathState *state, int path_flag)
 {
 	sd->num_closure = 0;
 	sd->num_closure_extra = 0;
-	sd->randb_closure = randb;
 
 #ifdef __OSL__
 	if(kg->osl)
-		OSLShader::eval_surface(kg, sd, state, path_flag, ctx);
+		OSLShader::eval_surface(kg, sd, state, path_flag);
 	else
 #endif
 	{
@@ -887,24 +987,23 @@ ccl_device void shader_eval_surface(KernelGlobals *kg, ShaderData *sd, RNG *rng,
 #endif
 	}
 
-	if(rng && (sd->flag & SD_BSDF_NEEDS_LCG)) {
-		sd->lcg_state = lcg_state_init(rng, state->rng_offset, state->sample, 0xb4bc3953);
+	if(sd->flag & SD_BSDF_NEEDS_LCG) {
+		sd->lcg_state = lcg_state_init_addrspace(state, 0xb4bc3953);
 	}
 }
 
 /* Background Evaluation */
 
 ccl_device float3 shader_eval_background(KernelGlobals *kg, ShaderData *sd,
-	ccl_addr_space PathState *state, int path_flag, ShaderContext ctx)
+	ccl_addr_space PathState *state, int path_flag)
 {
 	sd->num_closure = 0;
 	sd->num_closure_extra = 0;
-	sd->randb_closure = 0.0f;
 
 #ifdef __SVM__
 #ifdef __OSL__
 	if(kg->osl) {
-		OSLShader::eval_background(kg, sd, state, path_flag, ctx);
+		OSLShader::eval_background(kg, sd, state, path_flag);
 	}
 	else
 #endif
@@ -981,17 +1080,22 @@ ccl_device int shader_volume_phase_sample(KernelGlobals *kg, const ShaderData *s
 				sum += sc->sample_weight;
 		}
 
-		float r = sd->randb_closure*sum;
-		sum = 0.0f;
+		float r = randu*sum;
+		float partial_sum = 0.0f;
 
 		for(sampled = 0; sampled < sd->num_closure; sampled++) {
 			const ShaderClosure *sc = &sd->closure[sampled];
 			
 			if(CLOSURE_IS_PHASE(sc->type)) {
-				sum += sc->sample_weight;
+				float next_sum = partial_sum + sc->sample_weight;
 
-				if(r <= sum)
+				if(r <= next_sum) {
+					/* Rescale to reuse for BSDF direction sample. */
+					randu = (r - partial_sum) / sc->sample_weight;
 					break;
+				}
+
+				partial_sum = next_sum;
 			}
 		}
 
@@ -1039,8 +1143,7 @@ ccl_device_inline void shader_eval_volume(KernelGlobals *kg,
                                           ShaderData *sd,
                                           ccl_addr_space PathState *state,
                                           ccl_addr_space VolumeStack *stack,
-                                          int path_flag,
-                                          ShaderContext ctx)
+                                          int path_flag)
 {
 	/* reset closures once at the start, we will be accumulating the closures
 	 * for all volumes in the stack into a single array of closures */
@@ -1073,7 +1176,7 @@ ccl_device_inline void shader_eval_volume(KernelGlobals *kg,
 #ifdef __SVM__
 #  ifdef __OSL__
 		if(kg->osl) {
-			OSLShader::eval_volume(kg, sd, state, path_flag, ctx);
+			OSLShader::eval_volume(kg, sd, state, path_flag);
 		}
 		else
 #  endif
@@ -1092,17 +1195,16 @@ ccl_device_inline void shader_eval_volume(KernelGlobals *kg,
 
 /* Displacement Evaluation */
 
-ccl_device void shader_eval_displacement(KernelGlobals *kg, ShaderData *sd, ccl_addr_space PathState *state, ShaderContext ctx)
+ccl_device void shader_eval_displacement(KernelGlobals *kg, ShaderData *sd, ccl_addr_space PathState *state)
 {
 	sd->num_closure = 0;
 	sd->num_closure_extra = 0;
-	sd->randb_closure = 0.0f;
 
 	/* this will modify sd->P */
 #ifdef __SVM__
 #  ifdef __OSL__
 	if(kg->osl)
-		OSLShader::eval_displacement(kg, sd, ctx);
+		OSLShader::eval_displacement(kg, sd);
 	else
 #  endif
 	{
diff --git a/intern/cycles/kernel/kernel_shadow.h b/intern/cycles/kernel/kernel_shadow.h
index fab5946970d..8a0da6c3b13 100644
--- a/intern/cycles/kernel/kernel_shadow.h
+++ b/intern/cycles/kernel/kernel_shadow.h
@@ -16,6 +16,42 @@
 
 CCL_NAMESPACE_BEGIN
 
+#ifdef __VOLUME__
+typedef struct VolumeState {
+#  ifdef __SPLIT_KERNEL__
+#  else
+	PathState ps;
+#  endif
+} VolumeState;
+
+/* Get PathState ready for use for volume stack evaluation. */
+#  ifdef __SPLIT_KERNEL__
+ccl_addr_space
+#  endif
+ccl_device_inline PathState *shadow_blocked_volume_path_state(
+        KernelGlobals *kg,
+        VolumeState *volume_state,
+        ccl_addr_space PathState *state,
+        ShaderData *sd,
+        Ray *ray)
+{
+#  ifdef __SPLIT_KERNEL__
+	ccl_addr_space PathState *ps =
+	        &kernel_split_state.state_shadow[ccl_global_id(1) * ccl_global_size(0) + ccl_global_id(0)];
+#  else
+	PathState *ps = &volume_state->ps;
+#  endif
+	*ps = *state;
+	/* We are checking for shadow on the "other" side of the surface, so need
+	 * to discard volume we are currently at.
+	 */
+	if(dot(sd->Ng, ray->D) < 0.0f) {
+		kernel_volume_stack_enter_exit(kg, sd, ps->volume_stack);
+	}
+	return ps;
+}
+#endif  /* __VOLUME__ */
+
 /* Attenuate throughput accordingly to the given intersection event.
  * Returns true if the throughput is zero and traversal can be aborted.
  */
@@ -49,11 +85,8 @@ ccl_device_forceinline bool shadow_handle_transparent_isect(
 		path_state_modify_bounce(state, true);
 		shader_eval_surface(kg,
 		                    shadow_sd,
-		                    NULL,
 		                    state,
-		                    0.0f,
-		                    PATH_RAY_SHADOW,
-		                    SHADER_CONTEXT_SHADOW);
+		                    PATH_RAY_SHADOW);
 		path_state_modify_bounce(state, false);
 		*throughput *= shader_bsdf_transparency(kg, shadow_sd);
 	}
@@ -72,13 +105,14 @@ ccl_device_forceinline bool shadow_handle_transparent_isect(
 ccl_device bool shadow_blocked_opaque(KernelGlobals *kg,
                                       ShaderData *shadow_sd,
                                       ccl_addr_space PathState *state,
+                                      const uint visibility,
                                       Ray *ray,
                                       Intersection *isect,
                                       float3 *shadow)
 {
 	const bool blocked = scene_intersect(kg,
 	                                     *ray,
-	                                     PATH_RAY_SHADOW_OPAQUE,
+	                                     visibility & PATH_RAY_SHADOW_OPAQUE,
 	                                     isect,
 	                                     NULL,
 	                                     0.0f, 0.0f);
@@ -126,9 +160,10 @@ ccl_device bool shadow_blocked_opaque(KernelGlobals *kg,
  * Note that hits array should be as big as max_hits+1.
  */
 ccl_device bool shadow_blocked_transparent_all_loop(KernelGlobals *kg,
+                                                    ShaderData *sd,
                                                     ShaderData *shadow_sd,
                                                     ccl_addr_space PathState *state,
-                                                    const int skip_object,
+                                                    const uint visibility,
                                                     Ray *ray,
                                                     Intersection *hits,
                                                     uint max_hits,
@@ -141,9 +176,12 @@ ccl_device bool shadow_blocked_transparent_all_loop(KernelGlobals *kg,
 	const bool blocked = scene_intersect_shadow_all(kg,
 	                                                ray,
 	                                                hits,
-	                                                skip_object,
+	                                                visibility,
 	                                                max_hits,
 	                                                &num_hits);
+#    ifdef __VOLUME__
+	VolumeState volume_state;
+#    endif
 	/* If no opaque surface found but we did find transparent hits,
 	 * shade them.
 	 */
@@ -155,12 +193,13 @@ ccl_device bool shadow_blocked_transparent_all_loop(KernelGlobals *kg,
 		Intersection *isect = hits;
 #    ifdef __VOLUME__
 #      ifdef __SPLIT_KERNEL__
-		ccl_addr_space PathState *ps = &kernel_split_state.state_shadow[ccl_global_id(1) * ccl_global_size(0) + ccl_global_id(0)];
-#      else
-		PathState ps_object;
-		PathState *ps = &ps_object;
+		ccl_addr_space
 #      endif
-		*ps = *state;
+		PathState *ps = shadow_blocked_volume_path_state(kg,
+		                                                 &volume_state,
+		                                                 state,
+		                                                 sd,
+		                                                 ray);
 #    endif
 		sort_intersections(hits, num_hits);
 		for(int hit = 0; hit < num_hits; hit++, isect++) {
@@ -205,8 +244,16 @@ ccl_device bool shadow_blocked_transparent_all_loop(KernelGlobals *kg,
 	}
 #    ifdef __VOLUME__
 	if(!blocked && state->volume_stack[0].shader != SHADER_NONE) {
-		/* Apply attenuation from current volume shader/ */
-		kernel_volume_shadow(kg, shadow_sd, state, ray, shadow);
+		/* Apply attenuation from current volume shader. */
+#      ifdef __SPLIT_KERNEL__
+		ccl_addr_space
+#      endif
+		PathState *ps = shadow_blocked_volume_path_state(kg,
+		                                                 &volume_state,
+		                                                 state,
+		                                                 sd,
+		                                                 ray);
+		kernel_volume_shadow(kg, shadow_sd, ps, ray, shadow);
 	}
 #    endif
 	return blocked;
@@ -216,9 +263,10 @@ ccl_device bool shadow_blocked_transparent_all_loop(KernelGlobals *kg,
  * loop to help readability of the actual logic.
  */
 ccl_device bool shadow_blocked_transparent_all(KernelGlobals *kg,
+                                               ShaderData *sd,
                                                ShaderData *shadow_sd,
                                                ccl_addr_space PathState *state,
-                                               const int skip_object,
+                                               const uint visibility,
                                                Ray *ray,
                                                uint max_hits,
                                                float3 *shadow)
@@ -251,9 +299,10 @@ ccl_device bool shadow_blocked_transparent_all(KernelGlobals *kg,
 #    endif  /* __KERNEL_GPU__ */
 	/* Invoke actual traversal. */
 	return shadow_blocked_transparent_all_loop(kg,
+	                                           sd,
 	                                           shadow_sd,
 	                                           state,
-	                                           skip_object,
+	                                           visibility,
 	                                           ray,
 	                                           hits,
 	                                           max_hits,
@@ -276,27 +325,32 @@ ccl_device bool shadow_blocked_transparent_all(KernelGlobals *kg,
  */
 ccl_device bool shadow_blocked_transparent_stepped_loop(
         KernelGlobals *kg,
+        ShaderData *sd,
         ShaderData *shadow_sd,
         ccl_addr_space PathState *state,
-        const int skip_object,
+        const uint visibility,
         Ray *ray,
         Intersection *isect,
         const bool blocked,
         const bool is_transparent_isect,
         float3 *shadow)
 {
-	if((blocked && is_transparent_isect) || skip_object != OBJECT_NONE) {
+#    ifdef __VOLUME__
+	VolumeState volume_state;
+#    endif
+	if(blocked && is_transparent_isect) {
 		float3 throughput = make_float3(1.0f, 1.0f, 1.0f);
 		float3 Pend = ray->P + ray->D*ray->t;
 		int bounce = state->transparent_bounce;
 #    ifdef __VOLUME__
 #      ifdef __SPLIT_KERNEL__
-		ccl_addr_space PathState *ps = &kernel_split_state.state_shadow[ccl_global_id(1) * ccl_global_size(0) + ccl_global_id(0)];
-#      else
-		PathState ps_object;
-		PathState *ps = &ps_object;
+		ccl_addr_space
 #      endif
-		*ps = *state;
+		PathState *ps = shadow_blocked_volume_path_state(kg,
+		                                                 &volume_state,
+		                                                 state,
+		                                                 sd,
+		                                                 ray);
 #    endif
 		for(;;) {
 			if(bounce >= kernel_data.integrator.transparent_max_bounce) {
@@ -304,30 +358,13 @@ ccl_device bool shadow_blocked_transparent_stepped_loop(
 			}
 			if(!scene_intersect(kg,
 			                    *ray,
-			                    PATH_RAY_SHADOW_TRANSPARENT,
+			                    visibility & PATH_RAY_SHADOW_TRANSPARENT,
 			                    isect,
 			                    NULL,
 			                    0.0f, 0.0f))
 			{
 				break;
 			}
-#ifdef __SHADOW_TRICKS__
-			if(skip_object != OBJECT_NONE) {
-				const int isect_object = (isect->object == PRIM_NONE)
-				        ? kernel_tex_fetch(__prim_object, isect->prim)
-				        : isect->object;
-				if(isect_object == skip_object) {
-					shader_setup_from_ray(kg, shadow_sd, isect, ray);
-					/* Move ray forward. */
-					ray->P = ray_offset(shadow_sd->P, -shadow_sd->Ng);
-					if(ray->t != FLT_MAX) {
-						ray->D = normalize_len(Pend - ray->P, &ray->t);
-					}
-					bounce++;
-					continue;
-				}
-			}
-#endif
 			if(!shader_transparent_shadow(kg, isect)) {
 				return true;
 			}
@@ -363,7 +400,15 @@ ccl_device bool shadow_blocked_transparent_stepped_loop(
 #    ifdef __VOLUME__
 	if(!blocked && state->volume_stack[0].shader != SHADER_NONE) {
 		/* Apply attenuation from current volume shader. */
-		kernel_volume_shadow(kg, shadow_sd, state, ray, shadow);
+#      ifdef __SPLIT_KERNEL__
+		ccl_addr_space
+#      endif
+		PathState *ps = shadow_blocked_volume_path_state(kg,
+		                                                 &volume_state,
+		                                                 state,
+		                                                 sd,
+		                                                 ray);
+		kernel_volume_shadow(kg, shadow_sd, ps, ray, shadow);
 	}
 #    endif
 	return blocked;
@@ -371,33 +416,28 @@ ccl_device bool shadow_blocked_transparent_stepped_loop(
 
 ccl_device bool shadow_blocked_transparent_stepped(
         KernelGlobals *kg,
+        ShaderData *sd,
         ShaderData *shadow_sd,
         ccl_addr_space PathState *state,
-        const int skip_object,
+        const uint visibility,
         Ray *ray,
         Intersection *isect,
         float3 *shadow)
 {
-	bool blocked, is_transparent_isect;
-	if(skip_object == OBJECT_NONE) {
-		blocked = scene_intersect(kg,
-		                          *ray,
-		                          PATH_RAY_SHADOW_OPAQUE,
-		                          isect,
-		                          NULL,
-		                          0.0f, 0.0f);
-		is_transparent_isect = blocked
-			        ? shader_transparent_shadow(kg, isect)
-			        : false;
-	}
-	else {
-		blocked = false;
-		is_transparent_isect = false;
-	}
+	bool blocked = scene_intersect(kg,
+	                               *ray,
+	                               visibility & PATH_RAY_SHADOW_OPAQUE,
+	                               isect,
+	                               NULL,
+	                               0.0f, 0.0f);
+	bool is_transparent_isect = blocked
+		? shader_transparent_shadow(kg, isect)
+		: false;
 	return shadow_blocked_transparent_stepped_loop(kg,
+	                                               sd,
 	                                               shadow_sd,
 	                                               state,
-	                                               skip_object,
+	                                               visibility,
 	                                               ray,
 	                                               isect,
 	                                               blocked,
@@ -409,6 +449,7 @@ ccl_device bool shadow_blocked_transparent_stepped(
 #endif /* __TRANSPARENT_SHADOWS__ */
 
 ccl_device_inline bool shadow_blocked(KernelGlobals *kg,
+                                      ShaderData *sd,
                                       ShaderData *shadow_sd,
                                       ccl_addr_space PathState *state,
                                       Ray *ray_input,
@@ -422,25 +463,24 @@ ccl_device_inline bool shadow_blocked(KernelGlobals *kg,
 		return false;
 	}
 #ifdef __SHADOW_TRICKS__
-	const int skip_object = state->catcher_object;
+	const uint visibility = (state->flag & PATH_RAY_SHADOW_CATCHER)
+		? PATH_RAY_SHADOW_NON_CATCHER
+		: PATH_RAY_SHADOW;
 #else
-	const int skip_object = OBJECT_NONE;
+	const uint visibility = PATH_RAY_SHADOW;
 #endif
 	/* Do actual shadow shading. */
 	/* First of all, we check if integrator requires transparent shadows.
 	 * if not, we use simplest and fastest ever way to calculate occlusion.
-	 *
-	 * NOTE: We can't do quick opaque test here if we are on shadow-catcher
-	 * path because we don't want catcher object to be casting shadow here.
 	 */
 #ifdef __TRANSPARENT_SHADOWS__
-	if(!kernel_data.integrator.transparent_shadows &&
-	   skip_object == OBJECT_NONE)
+	if(!kernel_data.integrator.transparent_shadows)
 #endif
 	{
 		return shadow_blocked_opaque(kg,
 		                             shadow_sd,
 		                             state,
+		                             visibility,
 		                             ray,
 		                             &isect,
 		                             shadow);
@@ -467,7 +507,7 @@ ccl_device_inline bool shadow_blocked(KernelGlobals *kg,
 	 */
 	const bool blocked = scene_intersect(kg,
 	                                     *ray,
-	                                     PATH_RAY_SHADOW_OPAQUE,
+	                                     visibility & PATH_RAY_SHADOW_OPAQUE,
 	                                     &isect,
 	                                     NULL,
 	                                     0.0f, 0.0f);
@@ -478,9 +518,10 @@ ccl_device_inline bool shadow_blocked(KernelGlobals *kg,
 	   max_hits + 1 >= SHADOW_STACK_MAX_HITS)
 	{
 		return shadow_blocked_transparent_stepped_loop(kg,
+		                                               sd,
 		                                               shadow_sd,
 		                                               state,
-		                                               skip_object,
+		                                               visibility,
 		                                               ray,
 		                                               &isect,
 		                                               blocked,
@@ -489,18 +530,20 @@ ccl_device_inline bool shadow_blocked(KernelGlobals *kg,
 	}
 #    endif  /* __KERNEL_GPU__ */
 	return shadow_blocked_transparent_all(kg,
+	                                      sd,
 	                                      shadow_sd,
 	                                      state,
-	                                      skip_object,
+	                                      visibility,
 	                                      ray,
 	                                      max_hits,
 	                                      shadow);
 #  else  /* __SHADOW_RECORD_ALL__ */
 	/* Fallback to a slowest version which works on all devices. */
 	return shadow_blocked_transparent_stepped(kg,
+	                                          sd,
 	                                          shadow_sd,
 	                                          state,
-	                                          skip_object,
+	                                          visibility,
 	                                          ray,
 	                                          &isect,
 	                                          shadow);
diff --git a/intern/cycles/kernel/kernel_subsurface.h b/intern/cycles/kernel/kernel_subsurface.h
index 6475d4b66fd..23a09e5e2ca 100644
--- a/intern/cycles/kernel/kernel_subsurface.h
+++ b/intern/cycles/kernel/kernel_subsurface.h
@@ -28,87 +28,31 @@ CCL_NAMESPACE_BEGIN
  * - try to reduce one sample model variance
  */
 
-#define BSSRDF_MULTI_EVAL
-
-ccl_device ShaderClosure *subsurface_scatter_pick_closure(KernelGlobals *kg, ShaderData *sd, float *probability)
-{
-	/* sum sample weights of bssrdf and bsdf */
-	float bsdf_sum = 0.0f;
-	float bssrdf_sum = 0.0f;
-
-	for(int i = 0; i < sd->num_closure; i++) {
-		ShaderClosure *sc = &sd->closure[i];
-		
-		if(CLOSURE_IS_BSDF(sc->type))
-			bsdf_sum += sc->sample_weight;
-		else if(CLOSURE_IS_BSSRDF(sc->type))
-			bssrdf_sum += sc->sample_weight;
-	}
-
-	/* use bsdf or bssrdf? */
-	float r = sd->randb_closure*(bsdf_sum + bssrdf_sum);
-
-	if(r < bsdf_sum) {
-		/* use bsdf, and adjust randb so we can reuse it for picking a bsdf */
-		sd->randb_closure = r/bsdf_sum;
-		*probability = (bsdf_sum > 0.0f)? (bsdf_sum + bssrdf_sum)/bsdf_sum: 1.0f;
-		return NULL;
-	}
-
-	/* use bssrdf */
-	r -= bsdf_sum;
-
-	float sum = 0.0f;
-
-	for(int i = 0; i < sd->num_closure; i++) {
-		ShaderClosure *sc = &sd->closure[i];
-		
-		if(CLOSURE_IS_BSSRDF(sc->type)) {
-			sum += sc->sample_weight;
-
-			if(r <= sum) {
-				sd->randb_closure = (r - (sum - sc->sample_weight))/sc->sample_weight;
-
-#ifdef BSSRDF_MULTI_EVAL
-				*probability = (bssrdf_sum > 0.0f)? (bsdf_sum + bssrdf_sum)/bssrdf_sum: 1.0f;
-#else
-				*probability = (bssrdf_sum > 0.0f)? (bsdf_sum + bssrdf_sum)/sc->sample_weight: 1.0f;
-#endif
-				return sc;
-			}
-		}
-	}
-
-	/* should never happen */
-	sd->randb_closure = 0.0f;
-	*probability = 1.0f;
-	return NULL;
-}
-
 ccl_device_inline float3 subsurface_scatter_eval(ShaderData *sd,
-                                                 ShaderClosure *sc,
+                                                 const ShaderClosure *sc,
                                                  float disk_r,
                                                  float r,
                                                  bool all)
 {
-#ifdef BSSRDF_MULTI_EVAL
 	/* this is the veach one-sample model with balance heuristic, some pdf
 	 * factors drop out when using balance heuristic weighting */
 	float3 eval_sum = make_float3(0.0f, 0.0f, 0.0f);
 	float pdf_sum = 0.0f;
-	float sample_weight_sum = 0.0f;
-	int num_bssrdf = 0;
+	float sample_weight_inv = 0.0f;
 
-	for(int i = 0; i < sd->num_closure; i++) {
-		sc = &sd->closure[i];
-		
-		if(CLOSURE_IS_BSSRDF(sc->type)) {
-			float sample_weight = (all)? 1.0f: sc->sample_weight;
-			sample_weight_sum += sample_weight;
+	if(!all) {
+		float sample_weight_sum = 0.0f;
+
+		for(int i = 0; i < sd->num_closure; i++) {
+			sc = &sd->closure[i];
+
+			if(CLOSURE_IS_BSSRDF(sc->type)) {
+				sample_weight_sum += sc->sample_weight;
+			}
 		}
-	}
 
-	float sample_weight_inv = 1.0f/sample_weight_sum;
+		sample_weight_inv = 1.0f/sample_weight_sum;
+	}
 
 	for(int i = 0; i < sd->num_closure; i++) {
 		sc = &sd->closure[i];
@@ -125,25 +69,16 @@ ccl_device_inline float3 subsurface_scatter_eval(ShaderData *sd,
 			/* TODO power heuristic is not working correct here */
 			eval_sum += sc->weight*pdf; //*sample_weight*disk_pdf;
 			pdf_sum += sample_weight*disk_pdf; //*sample_weight*disk_pdf;
-
-			num_bssrdf++;
 		}
 	}
 
 	return (pdf_sum > 0.0f)? eval_sum / pdf_sum : make_float3(0.0f, 0.0f, 0.0f);
-#else
-	float pdf = bssrdf_pdf(pick_sc, r);
-	float disk_pdf = bssrdf_pdf(pick_sc, disk_r);
-
-	return pick_sc->weight * pdf / disk_pdf;
-#endif
 }
 
 /* replace closures with a single diffuse bsdf closure after scatter step */
-ccl_device void subsurface_scatter_setup_diffuse_bsdf(ShaderData *sd, ShaderClosure *sc, float3 weight, bool hit, float3 N)
+ccl_device void subsurface_scatter_setup_diffuse_bsdf(ShaderData *sd, const ShaderClosure *sc, float3 weight, bool hit, float3 N)
 {
 	sd->flag &= ~SD_CLOSURE_FLAGS;
-	sd->randb_closure = 0.0f;
 	sd->num_closure = 0;
 	sd->num_closure_extra = 0;
 
@@ -219,7 +154,7 @@ ccl_device void subsurface_color_bump_blur(KernelGlobals *kg,
 
 	if(bump || texture_blur > 0.0f) {
 		/* average color and normal at incoming point */
-		shader_eval_surface(kg, sd, NULL, state, 0.0f, state_flag, SHADER_CONTEXT_SSS);
+		shader_eval_surface(kg, sd, state, state_flag);
 		float3 in_color = shader_bssrdf_sum(sd, (bump)? N: NULL, NULL);
 
 		/* we simply divide out the average color and multiply with the average
@@ -242,8 +177,8 @@ ccl_device_inline int subsurface_scatter_multi_intersect(
         KernelGlobals *kg,
         SubsurfaceIntersection *ss_isect,
         ShaderData *sd,
-        ShaderClosure *sc,
-        RNG *lcg_state,
+        const ShaderClosure *sc,
+        uint *lcg_state,
         float disk_u,
         float disk_v,
         bool all)
@@ -255,26 +190,20 @@ ccl_device_inline int subsurface_scatter_multi_intersect(
 	disk_N = sd->Ng;
 	make_orthonormals(disk_N, &disk_T, &disk_B);
 
-	/* reusing variable for picking the closure gives a bit nicer stratification
-	 * for path tracer, for branched we do all closures so it doesn't help */
-	float axisu = (all)? disk_u: sd->randb_closure;
-
-	if(axisu < 0.5f) {
+	if(disk_u < 0.5f) {
 		pick_pdf_N = 0.5f;
 		pick_pdf_T = 0.25f;
 		pick_pdf_B = 0.25f;
-		if(all)
-			disk_u *= 2.0f;
+		disk_u *= 2.0f;
 	}
-	else if(axisu < 0.75f) {
+	else if(disk_u < 0.75f) {
 		float3 tmp = disk_N;
 		disk_N = disk_T;
 		disk_T = tmp;
 		pick_pdf_N = 0.25f;
 		pick_pdf_T = 0.5f;
 		pick_pdf_B = 0.25f;
-		if(all)
-			disk_u = (disk_u - 0.5f)*4.0f;
+		disk_u = (disk_u - 0.5f)*4.0f;
 	}
 	else {
 		float3 tmp = disk_N;
@@ -283,8 +212,7 @@ ccl_device_inline int subsurface_scatter_multi_intersect(
 		pick_pdf_N = 0.25f;
 		pick_pdf_T = 0.25f;
 		pick_pdf_B = 0.5f;
-		if(all)
-			disk_u = (disk_u - 0.75f)*4.0f;
+		disk_u = (disk_u - 0.75f)*4.0f;
 	}
 
 	/* sample point on disk */
@@ -390,7 +318,7 @@ ccl_device_noinline void subsurface_scatter_multi_setup(
         ShaderData *sd,
         ccl_addr_space PathState *state,
         int state_flag,
-        ShaderClosure *sc,
+        const ShaderClosure *sc,
         bool all)
 {
 #ifdef __SPLIT_KERNEL__
@@ -419,7 +347,7 @@ ccl_device_noinline void subsurface_scatter_multi_setup(
 
 /* subsurface scattering step, from a point on the surface to another nearby point on the same object */
 ccl_device void subsurface_scatter_step(KernelGlobals *kg, ShaderData *sd, ccl_addr_space PathState *state,
-	int state_flag, ShaderClosure *sc, uint *lcg_state, float disk_u, float disk_v, bool all)
+	int state_flag, const ShaderClosure *sc, uint *lcg_state, float disk_u, float disk_v, bool all)
 {
 	float3 eval = make_float3(0.0f, 0.0f, 0.0f);
 
@@ -430,18 +358,20 @@ ccl_device void subsurface_scatter_step(KernelGlobals *kg, ShaderData *sd, ccl_a
 	disk_N = sd->Ng;
 	make_orthonormals(disk_N, &disk_T, &disk_B);
 
-	if(sd->randb_closure < 0.5f) {
+	if(disk_u < 0.5f) {
 		pick_pdf_N = 0.5f;
 		pick_pdf_T = 0.25f;
 		pick_pdf_B = 0.25f;
+		disk_u *= 2.0f;
 	}
-	else if(sd->randb_closure < 0.75f) {
+	else if(disk_u < 0.75f) {
 		float3 tmp = disk_N;
 		disk_N = disk_T;
 		disk_T = tmp;
 		pick_pdf_N = 0.25f;
 		pick_pdf_T = 0.5f;
 		pick_pdf_B = 0.25f;
+		disk_u = (disk_u - 0.5f)*4.0f;
 	}
 	else {
 		float3 tmp = disk_N;
@@ -450,6 +380,7 @@ ccl_device void subsurface_scatter_step(KernelGlobals *kg, ShaderData *sd, ccl_a
 		pick_pdf_N = 0.25f;
 		pick_pdf_T = 0.25f;
 		pick_pdf_B = 0.5f;
+		disk_u = (disk_u - 0.75f)*4.0f;
 	}
 
 	/* sample point on disk */
diff --git a/intern/cycles/kernel/kernel_textures.h b/intern/cycles/kernel/kernel_textures.h
index cb1a3f40dee..5eab28a2953 100644
--- a/intern/cycles/kernel/kernel_textures.h
+++ b/intern/cycles/kernel/kernel_textures.h
@@ -82,115 +82,110 @@ KERNEL_TEX(uint, texture_uint, __sobol_directions)
 #  if __CUDA_ARCH__ < 300
 /* full-float image */
 KERNEL_IMAGE_TEX(float4, texture_image_float4, __tex_image_float4_000)
-KERNEL_IMAGE_TEX(float4, texture_image_float4, __tex_image_float4_001)
-KERNEL_IMAGE_TEX(float4, texture_image_float4, __tex_image_float4_002)
-KERNEL_IMAGE_TEX(float4, texture_image_float4, __tex_image_float4_003)
-KERNEL_IMAGE_TEX(float4, texture_image_float4, __tex_image_float4_004)
+KERNEL_IMAGE_TEX(float4, texture_image_float4, __tex_image_float4_008)
+KERNEL_IMAGE_TEX(float4, texture_image_float4, __tex_image_float4_016)
+KERNEL_IMAGE_TEX(float4, texture_image_float4, __tex_image_float4_024)
+KERNEL_IMAGE_TEX(float4, texture_image_float4, __tex_image_float4_032)
 
 KERNEL_IMAGE_TEX(float4, texture_image3d_float4, __tex_image_float4_3d_000)
-KERNEL_IMAGE_TEX(float4, texture_image3d_float4, __tex_image_float4_3d_001)
-KERNEL_IMAGE_TEX(float4, texture_image3d_float4, __tex_image_float4_3d_002)
-KERNEL_IMAGE_TEX(float4, texture_image3d_float4, __tex_image_float4_3d_003)
-KERNEL_IMAGE_TEX(float4, texture_image3d_float4, __tex_image_float4_3d_004)
-
-/* image */
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_005)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_006)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_007)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_008)
+KERNEL_IMAGE_TEX(float4, texture_image3d_float4, __tex_image_float4_3d_008)
+KERNEL_IMAGE_TEX(float4, texture_image3d_float4, __tex_image_float4_3d_016)
+KERNEL_IMAGE_TEX(float4, texture_image3d_float4, __tex_image_float4_3d_024)
+KERNEL_IMAGE_TEX(float4, texture_image3d_float4, __tex_image_float4_3d_032)
+
+/* image
+ * These texture names are encoded to their flattened slots as
+ * ImageManager::type_index_to_flattened_slot() returns them. */
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_001)
 KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_009)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_010)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_011)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_012)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_013)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_014)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_015)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_016)
 KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_017)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_018)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_019)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_020)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_021)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_022)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_023)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_024)
 KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_025)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_026)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_027)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_028)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_029)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_030)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_031)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_032)
 KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_033)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_034)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_035)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_036)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_037)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_038)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_039)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_040)
 KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_041)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_042)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_043)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_044)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_045)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_046)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_047)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_048)
 KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_049)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_050)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_051)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_052)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_053)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_054)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_055)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_056)
 KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_057)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_058)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_059)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_060)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_061)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_062)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_063)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_064)
 KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_065)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_066)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_067)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_068)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_069)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_070)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_071)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_072)
 KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_073)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_074)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_075)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_076)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_077)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_078)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_079)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_080)
 KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_081)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_082)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_083)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_084)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_085)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_086)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_087)
-KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_088)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_089)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_097)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_105)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_113)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_121)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_129)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_137)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_145)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_153)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_161)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_169)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_177)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_185)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_193)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_201)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_209)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_217)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_225)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_233)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_241)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_249)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_257)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_265)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_273)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_281)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_289)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_297)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_305)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_313)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_321)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_329)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_337)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_345)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_353)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_361)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_369)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_377)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_385)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_393)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_401)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_409)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_417)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_425)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_433)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_441)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_449)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_457)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_465)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_473)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_481)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_489)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_497)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_505)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_513)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_521)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_529)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_537)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_545)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_553)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_561)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_569)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_577)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_585)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_593)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_601)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_609)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_617)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_625)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_633)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_641)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_649)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_657)
+KERNEL_IMAGE_TEX(uchar4, texture_image_uchar4, __tex_image_byte4_665)
 
 #  else
 /* bindless textures */
 KERNEL_TEX(uint, texture_uint, __bindless_mapping)
-#  endif
-#endif
-
-/* packed image (opencl) */
-KERNEL_TEX(uchar4, texture_uchar4, __tex_image_byte4_packed)
-KERNEL_TEX(float4, texture_float4, __tex_image_float4_packed)
-KERNEL_TEX(uchar, texture_uchar, __tex_image_byte_packed)
-KERNEL_TEX(float, texture_float, __tex_image_float_packed)
-KERNEL_TEX(uint4, texture_uint4, __tex_image_packed_info)
+#  endif  /* __CUDA_ARCH__ */
+#endif  /* __KERNEL_CUDA__ */
 
 #undef KERNEL_TEX
 #undef KERNEL_IMAGE_TEX
diff --git a/intern/cycles/kernel/kernel_types.h b/intern/cycles/kernel/kernel_types.h
index 34affab1b9d..6c5b6ca3b2d 100644
--- a/intern/cycles/kernel/kernel_types.h
+++ b/intern/cycles/kernel/kernel_types.h
@@ -130,6 +130,7 @@ CCL_NAMESPACE_BEGIN
 #  ifdef __KERNEL_OPENCL_APPLE__
 #    define __KERNEL_SHADING__
 #    define __KERNEL_ADV_SHADING__
+#    define __PRINCIPLED__
 #    define __CMJ__
 /* TODO(sergey): Currently experimental section is ignored here,
  * this is because megakernel in device_opencl does not support
@@ -154,6 +155,7 @@ CCL_NAMESPACE_BEGIN
 #    define __CL_USE_NATIVE__
 #    define __KERNEL_SHADING__
 #    define __KERNEL_ADV_SHADING__
+#    define __PRINCIPLED__
 #    define __CMJ__
 #  endif  /* __KERNEL_OPENCL_INTEL_CPU__ */
 
@@ -240,10 +242,6 @@ CCL_NAMESPACE_BEGIN
 #  undef __DENOISING_FEATURES__
 #endif
 
-/* Random Numbers */
-
-typedef uint RNG;
-
 /* Shader Evaluation */
 
 typedef enum ShaderEvalType {
@@ -283,31 +281,21 @@ enum PathTraceDimension {
 	PRNG_FILTER_V = 1,
 	PRNG_LENS_U = 2,
 	PRNG_LENS_V = 3,
-#ifdef __CAMERA_MOTION__
 	PRNG_TIME = 4,
 	PRNG_UNUSED_0 = 5,
 	PRNG_UNUSED_1 = 6,	/* for some reason (6, 7) is a bad sobol pattern */
 	PRNG_UNUSED_2 = 7,  /* with a low number of samples (< 64) */
-#endif
-	PRNG_BASE_NUM = 8,
+	PRNG_BASE_NUM = 10,
 
 	PRNG_BSDF_U = 0,
 	PRNG_BSDF_V = 1,
-	PRNG_BSDF = 2,
-	PRNG_LIGHT = 3,
-	PRNG_LIGHT_U = 4,
-	PRNG_LIGHT_V = 5,
-	PRNG_LIGHT_TERMINATE = 6,
-	PRNG_TERMINATE = 7,
-
-#ifdef __VOLUME__
-	PRNG_PHASE_U = 8,
-	PRNG_PHASE_V = 9,
-	PRNG_PHASE = 10,
-	PRNG_SCATTER_DISTANCE = 11,
-#endif
-
-	PRNG_BOUNCE_NUM = 12,
+	PRNG_LIGHT_U = 2,
+	PRNG_LIGHT_V = 3,
+	PRNG_LIGHT_TERMINATE = 4,
+	PRNG_TERMINATE = 5,
+	PRNG_PHASE_CHANNEL = 6,
+	PRNG_SCATTER_DISTANCE = 7,
+	PRNG_BOUNCE_NUM = 8,
 };
 
 enum SamplingPattern {
@@ -328,24 +316,28 @@ enum PathRayFlag {
 	PATH_RAY_SINGULAR            = (1 << 5),
 	PATH_RAY_TRANSPARENT         = (1 << 6),
 
-	PATH_RAY_SHADOW_OPAQUE       = (1 << 7),
-	PATH_RAY_SHADOW_TRANSPARENT  = (1 << 8),
-	PATH_RAY_SHADOW = (PATH_RAY_SHADOW_OPAQUE|PATH_RAY_SHADOW_TRANSPARENT),
+	PATH_RAY_SHADOW_OPAQUE_NON_CATCHER       = (1 << 7),
+	PATH_RAY_SHADOW_OPAQUE_CATCHER           = (1 << 8),
+	PATH_RAY_SHADOW_OPAQUE                   = (PATH_RAY_SHADOW_OPAQUE_NON_CATCHER|PATH_RAY_SHADOW_OPAQUE_CATCHER),
+	PATH_RAY_SHADOW_TRANSPARENT_NON_CATCHER  = (1 << 9),
+	PATH_RAY_SHADOW_TRANSPARENT_CATCHER      = (1 << 10),
+	PATH_RAY_SHADOW_TRANSPARENT              = (PATH_RAY_SHADOW_TRANSPARENT_NON_CATCHER|PATH_RAY_SHADOW_TRANSPARENT_CATCHER),
+	PATH_RAY_SHADOW_NON_CATCHER              = (PATH_RAY_SHADOW_OPAQUE_NON_CATCHER|PATH_RAY_SHADOW_TRANSPARENT_NON_CATCHER),
+	PATH_RAY_SHADOW                          = (PATH_RAY_SHADOW_OPAQUE|PATH_RAY_SHADOW_TRANSPARENT),
 
-	PATH_RAY_CURVE               = (1 << 9), /* visibility flag to define curve segments */
-	PATH_RAY_VOLUME_SCATTER      = (1 << 10), /* volume scattering */
+	PATH_RAY_CURVE               = (1 << 11), /* visibility flag to define curve segments */
+	PATH_RAY_VOLUME_SCATTER      = (1 << 12), /* volume scattering */
 
 	/* Special flag to tag unaligned BVH nodes. */
-	PATH_RAY_NODE_UNALIGNED = (1 << 11),
+	PATH_RAY_NODE_UNALIGNED = (1 << 13),
 
-	PATH_RAY_ALL_VISIBILITY = ((1 << 12)-1),
+	PATH_RAY_ALL_VISIBILITY = ((1 << 14)-1),
 
-	PATH_RAY_MIS_SKIP            = (1 << 12),
-	PATH_RAY_DIFFUSE_ANCESTOR    = (1 << 13),
-	PATH_RAY_SINGLE_PASS_DONE    = (1 << 14),
-	PATH_RAY_SHADOW_CATCHER      = (1 << 15),
-	PATH_RAY_SHADOW_CATCHER_ONLY = (1 << 16),
-	PATH_RAY_STORE_SHADOW_INFO   = (1 << 17),
+	PATH_RAY_MIS_SKIP            = (1 << 15),
+	PATH_RAY_DIFFUSE_ANCESTOR    = (1 << 16),
+	PATH_RAY_SINGLE_PASS_DONE    = (1 << 17),
+	PATH_RAY_SHADOW_CATCHER      = (1 << 18),
+	PATH_RAY_STORE_SHADOW_INFO   = (1 << 19),
 };
 
 /* Closure Label */
@@ -462,18 +454,42 @@ typedef enum DenoiseFlag {
 	DENOISING_CLEAN_ALL_PASSES       = (1 << 8)-1,
 } DenoiseFlag;
 
+#ifdef __KERNEL_DEBUG__
+/* NOTE: This is a runtime-only struct, alignment is not
+ * really important here.
+ */
+typedef struct DebugData {
+	int num_bvh_traversed_nodes;
+	int num_bvh_traversed_instances;
+	int num_bvh_intersections;
+	int num_ray_bounces;
+} DebugData;
+#endif
+
+typedef ccl_addr_space struct PathRadianceState {
+#ifdef __PASSES__
+	float3 diffuse;
+	float3 glossy;
+	float3 transmission;
+	float3 subsurface;
+	float3 scatter;
+
+	float3 direct;
+#endif
+} PathRadianceState;
+
 typedef ccl_addr_space struct PathRadiance {
 #ifdef __PASSES__
 	int use_light_pass;
 #endif
 
+	float transparent;
 	float3 emission;
 #ifdef __PASSES__
 	float3 background;
 	float3 ao;
 
 	float3 indirect;
-	float3 direct_throughput;
 	float3 direct_emission;
 
 	float3 color_diffuse;
@@ -494,16 +510,12 @@ typedef ccl_addr_space struct PathRadiance {
 	float3 indirect_subsurface;
 	float3 indirect_scatter;
 
-	float3 path_diffuse;
-	float3 path_glossy;
-	float3 path_transmission;
-	float3 path_subsurface;
-	float3 path_scatter;
-
 	float4 shadow;
 	float mist;
 #endif
 
+	struct PathRadianceState state;
+
 #ifdef __SHADOW_TRICKS__
 	/* Total light reachable across the path, ignoring shadow blocked queries. */
 	float3 path_total;
@@ -515,7 +527,18 @@ typedef ccl_addr_space struct PathRadiance {
 	float3 path_total_shaded;
 
 	/* Color of the background on which shadow is alpha-overed. */
-	float3 shadow_color;
+	float3 shadow_background_color;
+
+	/* Path radiance sum and throughput at the moment when ray hits shadow
+	 * catcher object.
+	 */
+	float shadow_throughput;
+
+	/* Accumulated transparency along the path after shadow catcher bounce. */
+	float shadow_transparency;
+
+	/* Indicate if any shadow catcher data is set. */
+	int has_shadow_catcher;
 #endif
 
 #ifdef __DENOISING_FEATURES__
@@ -523,6 +546,10 @@ typedef ccl_addr_space struct PathRadiance {
 	float3 denoising_albedo;
 	float denoising_depth;
 #endif  /* __DENOISING_FEATURES__ */
+
+#ifdef __KERNEL_DEBUG__
+	DebugData debug_data;
+#endif /* __KERNEL_DEBUG__ */
 } PathRadiance;
 
 typedef struct BsdfEval {
@@ -774,20 +801,6 @@ typedef ccl_addr_space struct ccl_align(16) ShaderClosure {
 	float data[10]; /* pad to 80 bytes */
 } ShaderClosure;
 
-/* Shader Context
- *
- * For OSL we recycle a fixed number of contexts for speed */
-
-typedef enum ShaderContext {
-	SHADER_CONTEXT_MAIN = 0,
-	SHADER_CONTEXT_INDIRECT = 1,
-	SHADER_CONTEXT_EMISSION = 2,
-	SHADER_CONTEXT_SHADOW = 3,
-	SHADER_CONTEXT_SSS = 4,
-	SHADER_CONTEXT_VOLUME = 5,
-	SHADER_CONTEXT_NUM = 6
-} ShaderContext;
-
 /* Shader Data
  *
  * Main shader state at a point on the surface or in a volume. All coordinates
@@ -850,7 +863,7 @@ enum ShaderDataFlag {
 	SD_VOLUME_MIS             = (1 << 23),
 	/* Use cubic interpolation for voxels. */
 	SD_VOLUME_CUBIC           = (1 << 24),
-	/* Has data connected to the displacement input. */
+	/* Has data connected to the displacement input or uses bump map. */
 	SD_HAS_BUMP               = (1 << 25),
 	/* Has true displacement. */
 	SD_HAS_DISPLACEMENT       = (1 << 26),
@@ -991,9 +1004,11 @@ typedef struct PathState {
 	int flag;
 
 	/* random number generator state */
-	int rng_offset;    		/* dimension offset */
-	int sample;        		/* path sample number */
-	int num_samples;		/* total number of times this path will be sampled */
+	uint rng_hash;          /* per pixel hash */
+	int rng_offset;         /* dimension offset */
+	int sample;             /* path sample number */
+	int num_samples;        /* total number of times this path will be sampled */
+	float branch_factor;    /* number of branches in indirect paths */
 
 	/* bounce counting */
 	int bounce;
@@ -1016,20 +1031,15 @@ typedef struct PathState {
 	/* volume rendering */
 #ifdef __VOLUME__
 	int volume_bounce;
-	RNG rng_congruential;
+	uint rng_congruential;
 	VolumeStack volume_stack[VOLUME_STACK_SIZE];
 #endif
-
-#ifdef __SHADOW_TRICKS__
-	int catcher_object;
-#endif
 } PathState;
 
 /* Subsurface */
 
 /* Struct to gather multiple SSS hits. */
-typedef struct SubsurfaceIntersection
-{
+typedef struct SubsurfaceIntersection {
 	Ray ray;
 	float3 weight[BSSRDF_MAX_HITS];
 
@@ -1039,17 +1049,14 @@ typedef struct SubsurfaceIntersection
 } SubsurfaceIntersection;
 
 /* Struct to gather SSS indirect rays and delay tracing them. */
-typedef struct SubsurfaceIndirectRays
-{
-	bool need_update_volume_stack;
-	bool tracing;
+typedef struct SubsurfaceIndirectRays {
 	PathState state[BSSRDF_MAX_HITS];
-	struct PathRadiance direct_L;
 
 	int num_rays;
+
 	struct Ray rays[BSSRDF_MAX_HITS];
 	float3 throughputs[BSSRDF_MAX_HITS];
-	struct PathRadiance L[BSSRDF_MAX_HITS];
+	struct PathRadianceState L_state[BSSRDF_MAX_HITS];
 } SubsurfaceIndirectRays;
 
 /* Constant Kernel Data
@@ -1228,7 +1235,6 @@ typedef struct KernelIntegrator {
 	int portal_offset;
 
 	/* bounces */
-	int min_bounce;
 	int max_bounce;
 
 	int max_diffuse_bounce;
@@ -1239,7 +1245,6 @@ typedef struct KernelIntegrator {
 	int ao_bounces;
 
 	/* transparent */
-	int transparent_min_bounce;
 	int transparent_max_bounce;
 	int transparent_shadows;
 
@@ -1282,7 +1287,7 @@ typedef struct KernelIntegrator {
 	float light_inv_rr_threshold;
 
 	int start_sample;
-	int pad1, pad2, pad3;
+	int pad1;
 } KernelIntegrator;
 static_assert_align(KernelIntegrator, 16);
 
@@ -1336,18 +1341,6 @@ typedef struct KernelData {
 } KernelData;
 static_assert_align(KernelData, 16);
 
-#ifdef __KERNEL_DEBUG__
-/* NOTE: This is a runtime-only struct, alignment is not
- * really important here.
- */
-typedef ccl_addr_space struct DebugData {
-	int num_bvh_traversed_nodes;
-	int num_bvh_traversed_instances;
-	int num_bvh_intersections;
-	int num_ray_bounces;
-} DebugData;
-#endif
-
 /* Declarations required for split kernel */
 
 /* Macro for queues */
diff --git a/intern/cycles/kernel/kernel_volume.h b/intern/cycles/kernel/kernel_volume.h
index 1e472aaf51a..d9c310a893e 100644
--- a/intern/cycles/kernel/kernel_volume.h
+++ b/intern/cycles/kernel/kernel_volume.h
@@ -43,7 +43,7 @@ ccl_device_inline bool volume_shader_extinction_sample(KernelGlobals *kg,
                                                        float3 *extinction)
 {
 	sd->P = P;
-	shader_eval_volume(kg, sd, state, state->volume_stack, PATH_RAY_SHADOW, SHADER_CONTEXT_SHADOW);
+	shader_eval_volume(kg, sd, state, state->volume_stack, PATH_RAY_SHADOW);
 
 	if(!(sd->flag & (SD_ABSORPTION|SD_SCATTER)))
 		return false;
@@ -69,7 +69,7 @@ ccl_device_inline bool volume_shader_sample(KernelGlobals *kg,
                                             VolumeShaderCoefficients *coeff)
 {
 	sd->P = P;
-	shader_eval_volume(kg, sd, state, state->volume_stack, state->flag, SHADER_CONTEXT_VOLUME);
+	shader_eval_volume(kg, sd, state, state->volume_stack, state->flag);
 
 	if(!(sd->flag & (SD_ABSORPTION|SD_SCATTER|SD_EMISSION)))
 		return false;
@@ -360,7 +360,6 @@ ccl_device VolumeIntegrateResult kernel_volume_integrate_homogeneous(
     ShaderData *sd,
     PathRadiance *L,
     ccl_addr_space float3 *throughput,
-    RNG *rng,
     bool probalistic_scatter)
 {
 	VolumeShaderCoefficients coeff;
@@ -380,13 +379,12 @@ ccl_device VolumeIntegrateResult kernel_volume_integrate_homogeneous(
 
 		/* pick random color channel, we use the Veach one-sample
 		 * model with balance heuristic for the channels */
-		float rphase = path_state_rng_1D_for_decision(kg, rng, state, PRNG_PHASE);
+		float rphase = path_state_rng_1D(kg, state, PRNG_PHASE_CHANNEL);
 		int channel = (int)(rphase*3.0f);
-		sd->randb_closure = rphase*3.0f - channel;
 
 		/* decide if we will hit or miss */
 		bool scatter = true;
-		float xi = path_state_rng_1D_for_decision(kg, rng, state, PRNG_SCATTER_DISTANCE);
+		float xi = path_state_rng_1D(kg, state, PRNG_SCATTER_DISTANCE);
 
 		if(probalistic_scatter) {
 			float sample_sigma_t = kernel_volume_channel_get(sigma_t, channel);
@@ -439,7 +437,7 @@ ccl_device VolumeIntegrateResult kernel_volume_integrate_homogeneous(
 		float3 sigma_t = coeff.sigma_a + coeff.sigma_s;
 		float3 transmittance = volume_color_transmittance(sigma_t, ray->t);
 		float3 emission = kernel_volume_emission_integrate(&coeff, closure_flag, transmittance, ray->t);
-		path_radiance_accum_emission(L, *throughput, emission, state->bounce);
+		path_radiance_accum_emission(L, state, *throughput, emission);
 	}
 
 	/* modify throughput */
@@ -468,8 +466,7 @@ ccl_device VolumeIntegrateResult kernel_volume_integrate_heterogeneous_distance(
     Ray *ray,
     ShaderData *sd,
     PathRadiance *L,
-    ccl_addr_space float3 *throughput,
-    RNG *rng)
+    ccl_addr_space float3 *throughput)
 {
 	float3 tp = *throughput;
 	const float tp_eps = 1e-6f; /* todo: this is likely not the right value */
@@ -485,10 +482,9 @@ ccl_device VolumeIntegrateResult kernel_volume_integrate_heterogeneous_distance(
 
 	/* pick random color channel, we use the Veach one-sample
 	 * model with balance heuristic for the channels */
-	float xi = path_state_rng_1D_for_decision(kg, rng, state, PRNG_SCATTER_DISTANCE);
-	float rphase = path_state_rng_1D_for_decision(kg, rng, state, PRNG_PHASE);
+	float xi = path_state_rng_1D(kg, state, PRNG_SCATTER_DISTANCE);
+	float rphase = path_state_rng_1D(kg, state, PRNG_PHASE_CHANNEL);
 	int channel = (int)(rphase*3.0f);
-	sd->randb_closure = rphase*3.0f - channel;
 	bool has_scatter = false;
 
 	for(int i = 0; i < max_steps; i++) {
@@ -560,7 +556,7 @@ ccl_device VolumeIntegrateResult kernel_volume_integrate_heterogeneous_distance(
 			/* integrate emission attenuated by absorption */
 			if(L && (closure_flag & SD_EMISSION)) {
 				float3 emission = kernel_volume_emission_integrate(&coeff, closure_flag, transmittance, dt);
-				path_radiance_accum_emission(L, tp, emission, state->bounce);
+				path_radiance_accum_emission(L, state, tp, emission);
 			}
 
 			/* modify throughput */
@@ -610,15 +606,14 @@ ccl_device_noinline VolumeIntegrateResult kernel_volume_integrate(
     Ray *ray,
     PathRadiance *L,
     ccl_addr_space float3 *throughput,
-    RNG *rng,
     bool heterogeneous)
 {
 	shader_setup_from_volume(kg, sd, ray);
 
 	if(heterogeneous)
-		return kernel_volume_integrate_heterogeneous_distance(kg, state, ray, sd, L, throughput, rng);
+		return kernel_volume_integrate_heterogeneous_distance(kg, state, ray, sd, L, throughput);
 	else
-		return kernel_volume_integrate_homogeneous(kg, state, ray, sd, L, throughput, rng, true);
+		return kernel_volume_integrate_homogeneous(kg, state, ray, sd, L, throughput, true);
 }
 
 #ifndef __SPLIT_KERNEL__
@@ -846,7 +841,6 @@ ccl_device VolumeIntegrateResult kernel_volume_decoupled_scatter(
 	/* pick random color channel, we use the Veach one-sample
 	 * model with balance heuristic for the channels */
 	int channel = (int)(rphase*3.0f);
-	sd->randb_closure = rphase*3.0f - channel;
 	float xi = rscatter;
 
 	/* probabilistic scattering decision based on transmittance */
@@ -1000,8 +994,8 @@ ccl_device VolumeIntegrateResult kernel_volume_decoupled_scatter(
 			mis_weight = 2.0f*power_heuristic(pdf, distance_pdf);
 		}
 	}
-	if(sample_t < 1e-6f || pdf == 0.0f) {
-		return VOLUME_PATH_SCATTERED;
+	if(sample_t < 0.0f || pdf == 0.0f) {
+		return VOLUME_PATH_MISSED;
 	}
 
 	/* compute transmittance up to this step */
diff --git a/intern/cycles/kernel/kernel_work_stealing.h b/intern/cycles/kernel/kernel_work_stealing.h
index 28fc5ce1c30..0c11158e8da 100644
--- a/intern/cycles/kernel/kernel_work_stealing.h
+++ b/intern/cycles/kernel/kernel_work_stealing.h
@@ -27,90 +27,54 @@ CCL_NAMESPACE_BEGIN
 #  pragma OPENCL EXTENSION cl_khr_global_int32_base_atomics : enable
 #endif
 
-ccl_device_inline uint kernel_total_work_size(KernelGlobals *kg)
-{
-	return kernel_split_params.w * kernel_split_params.h * kernel_split_params.num_samples;
-}
-
-ccl_device_inline uint kernel_num_work_pools(KernelGlobals *kg)
-{
-	return ccl_global_size(0) * ccl_global_size(1) / WORK_POOL_SIZE;
-}
-
-ccl_device_inline uint work_pool_from_ray_index(KernelGlobals *kg, uint ray_index)
-{
-	return ray_index / WORK_POOL_SIZE;
-}
-
-ccl_device_inline uint work_pool_work_size(KernelGlobals *kg, uint work_pool)
-{
-	uint total_work_size = kernel_total_work_size(kg);
-	uint num_pools = kernel_num_work_pools(kg);
-
-	if(work_pool >= num_pools || work_pool * WORK_POOL_SIZE >= total_work_size) {
-		return 0;
-	}
-
-	uint work_size = (total_work_size / (num_pools * WORK_POOL_SIZE)) * WORK_POOL_SIZE;
-
-	uint remainder = (total_work_size % (num_pools * WORK_POOL_SIZE));
-	if(work_pool < remainder / WORK_POOL_SIZE) {
-		work_size += WORK_POOL_SIZE;
-	}
-	else if(work_pool == remainder / WORK_POOL_SIZE) {
-		work_size += remainder % WORK_POOL_SIZE;
-	}
-
-	return work_size;
-}
-
-ccl_device_inline uint get_global_work_index(KernelGlobals *kg, uint work_index, uint ray_index)
-{
-	uint num_pools = kernel_num_work_pools(kg);
-	uint pool = work_pool_from_ray_index(kg, ray_index);
-
-	return (work_index / WORK_POOL_SIZE) * (num_pools * WORK_POOL_SIZE)
-	       + (pool * WORK_POOL_SIZE)
-	       + (work_index % WORK_POOL_SIZE);
-}
-
 /* Returns true if there is work */
-ccl_device bool get_next_work(KernelGlobals *kg, ccl_private uint *work_index, uint ray_index)
+ccl_device bool get_next_work(KernelGlobals *kg,
+                              uint thread_index,
+                              ccl_private uint *global_work_index)
 {
-	uint work_pool = work_pool_from_ray_index(kg, ray_index);
-	uint pool_size = work_pool_work_size(kg, work_pool);
+	uint total_work_size = kernel_split_params.w
+	                     * kernel_split_params.h
+	                     * kernel_split_params.num_samples;
 
-	if(pool_size == 0) {
+	/* With a small amount of work there may be more threads than work due to
+	 * rounding up of global size, stop such threads immediately. */
+	if(thread_index >= total_work_size) {
 		return false;
 	}
 
-	*work_index = atomic_fetch_and_inc_uint32(&kernel_split_params.work_pools[work_pool]);
-	return (*work_index < pool_size);
-}
+	/* Increase atomic work index counter in pool. */
+	uint pool = thread_index / WORK_POOL_SIZE;
+	uint work_index = atomic_fetch_and_inc_uint32(&kernel_split_params.work_pools[pool]);
 
-/* This function assumes that the passed `work` is valid. */
-/* Decode sample number w.r.t. assigned `work`. */
-ccl_device uint get_work_sample(KernelGlobals *kg, uint work_index, uint ray_index)
-{
-	return get_global_work_index(kg, work_index, ray_index) / (kernel_split_params.w * kernel_split_params.h);
-}
+	/* Map per-pool work index to a global work index. */
+	uint global_size = ccl_global_size(0) * ccl_global_size(1);
+	kernel_assert(global_size % WORK_POOL_SIZE == 0);
+	kernel_assert(thread_index < global_size);
 
-/* Decode pixel and tile position w.r.t. assigned `work`. */
-ccl_device void get_work_pixel_tile_position(KernelGlobals *kg,
-                             ccl_private uint *pixel_x,
-                             ccl_private uint *pixel_y,
-                             ccl_private uint *tile_x,
-                             ccl_private uint *tile_y,
-                             uint work_index,
-                             uint ray_index)
-{
-	uint pixel_index = get_global_work_index(kg, work_index, ray_index) % (kernel_split_params.w*kernel_split_params.h);
+	*global_work_index = (work_index / WORK_POOL_SIZE) * global_size
+	                   + (pool * WORK_POOL_SIZE)
+	                   + (work_index % WORK_POOL_SIZE);
 
-	*tile_x = pixel_index % kernel_split_params.w;
-	*tile_y = pixel_index / kernel_split_params.w;
+	/* Test if all work for this pool is done. */
+	return (*global_work_index < total_work_size);
+}
 
-	*pixel_x = *tile_x + kernel_split_params.x;
-	*pixel_y = *tile_y + kernel_split_params.y;
+/* Map global work index to pixel X/Y and sample. */
+ccl_device_inline void get_work_pixel(KernelGlobals *kg,
+                                      uint global_work_index,
+                                      ccl_private uint *x,
+                                      ccl_private uint *y,
+                                      ccl_private uint *sample)
+{
+	uint tile_pixels = kernel_split_params.w * kernel_split_params.h;
+	uint sample_offset = global_work_index / tile_pixels;
+	uint pixel_offset = global_work_index - sample_offset * tile_pixels;
+	uint y_offset = pixel_offset / kernel_split_params.w;
+	uint x_offset = pixel_offset - y_offset * kernel_split_params.w;
+
+	*x = kernel_split_params.x + x_offset;
+	*y = kernel_split_params.y + y_offset;
+	*sample = kernel_split_params.start_sample + sample_offset;
 }
 
 CCL_NAMESPACE_END
diff --git a/intern/cycles/kernel/kernels/cpu/filter_sse41.cpp b/intern/cycles/kernel/kernels/cpu/filter_sse41.cpp
index 1a7b2040da1..254025be4e2 100644
--- a/intern/cycles/kernel/kernels/cpu/filter_sse41.cpp
+++ b/intern/cycles/kernel/kernels/cpu/filter_sse41.cpp
@@ -25,6 +25,7 @@
 #else
 /* SSE optimization disabled for now on 32 bit, see bug #36316 */
 #  if !(defined(__GNUC__) && (defined(i386) || defined(_M_IX86)))
+#    define __KERNEL_SSE__
 #    define __KERNEL_SSE2__
 #    define __KERNEL_SSE3__
 #    define __KERNEL_SSSE3__
diff --git a/intern/cycles/kernel/kernels/cuda/kernel_config.h b/intern/cycles/kernel/kernels/cuda/kernel_config.h
index 9fa39dc9ebb..7ae205b7e14 100644
--- a/intern/cycles/kernel/kernels/cuda/kernel_config.h
+++ b/intern/cycles/kernel/kernels/cuda/kernel_config.h
@@ -81,8 +81,13 @@
 #  error "Unknown or unsupported CUDA architecture, can't determine launch bounds"
 #endif
 
-/* compute number of threads per block and minimum blocks per multiprocessor
- * given the maximum number of registers per thread */
+/* For split kernel using all registers seems fastest for now, but this
+ * is unlikely to be optimal once we resolve other bottlenecks. */
+
+#define CUDA_KERNEL_SPLIT_MAX_REGISTERS CUDA_THREAD_MAX_REGISTERS
+
+/* Compute number of threads per block and minimum blocks per multiprocessor
+ * given the maximum number of registers per thread. */
 
 #define CUDA_LAUNCH_BOUNDS(threads_block_width, thread_num_registers) \
 	__launch_bounds__( \
diff --git a/intern/cycles/kernel/kernels/cuda/kernel_split.cu b/intern/cycles/kernel/kernels/cuda/kernel_split.cu
index 628891b1458..e97e87285a5 100644
--- a/intern/cycles/kernel/kernels/cuda/kernel_split.cu
+++ b/intern/cycles/kernel/kernels/cuda/kernel_split.cu
@@ -90,7 +90,7 @@ kernel_cuda_path_trace_data_init(
 
 #define DEFINE_SPLIT_KERNEL_FUNCTION(name) \
 	extern "C" __global__ void \
-	CUDA_LAUNCH_BOUNDS(CUDA_THREADS_BLOCK_WIDTH, CUDA_KERNEL_MAX_REGISTERS) \
+	CUDA_LAUNCH_BOUNDS(CUDA_THREADS_BLOCK_WIDTH, CUDA_KERNEL_SPLIT_MAX_REGISTERS) \
 	kernel_cuda_##name() \
 	{ \
 		kernel_##name(NULL); \
@@ -98,7 +98,7 @@ kernel_cuda_path_trace_data_init(
 
 #define DEFINE_SPLIT_KERNEL_FUNCTION_LOCALS(name, type) \
 	extern "C" __global__ void \
-	CUDA_LAUNCH_BOUNDS(CUDA_THREADS_BLOCK_WIDTH, CUDA_KERNEL_MAX_REGISTERS) \
+	CUDA_LAUNCH_BOUNDS(CUDA_THREADS_BLOCK_WIDTH, CUDA_KERNEL_SPLIT_MAX_REGISTERS) \
 	kernel_cuda_##name() \
 	{ \
 		ccl_local type locals; \
diff --git a/intern/cycles/kernel/kernels/opencl/filter.cl b/intern/cycles/kernel/kernels/opencl/filter.cl
index ba53ba4b26f..f015ac47d8a 100644
--- a/intern/cycles/kernel/kernels/opencl/filter.cl
+++ b/intern/cycles/kernel/kernels/opencl/filter.cl
@@ -235,7 +235,7 @@ __kernel void kernel_ocl_filter_nlm_construct_gramian(int dx,
 }
 
 __kernel void kernel_ocl_filter_finalize(int w,
-	                                     int h,
+                                         int h,
                                          ccl_global float *buffer,
                                          ccl_global int *rank,
                                          ccl_global float *XtWX,
diff --git a/intern/cycles/kernel/kernels/opencl/kernel.cl b/intern/cycles/kernel/kernels/opencl/kernel.cl
index 078acc1631e..b7108f3d0f8 100644
--- a/intern/cycles/kernel/kernels/opencl/kernel.cl
+++ b/intern/cycles/kernel/kernels/opencl/kernel.cl
@@ -52,9 +52,7 @@ __kernel void kernel_ocl_path_trace(
 	ccl_global float *buffer,
 	ccl_global uint *rng_state,
 
-#define KERNEL_TEX(type, ttype, name) \
-	ccl_global type *name,
-#include "kernel/kernel_textures.h"
+	KERNEL_BUFFER_PARAMS,
 
 	int sample,
 	int sx, int sy, int sw, int sh, int offset, int stride)
@@ -63,9 +61,8 @@ __kernel void kernel_ocl_path_trace(
 
 	kg->data = data;
 
-#define KERNEL_TEX(type, ttype, name) \
-	kg->name = name;
-#include "kernel/kernel_textures.h"
+	kernel_set_buffer_pointers(kg, KERNEL_BUFFER_ARGS);
+	kernel_set_buffer_info(kg);
 
 	int x = sx + ccl_global_id(0);
 	int y = sy + ccl_global_id(1);
@@ -82,9 +79,7 @@ __kernel void kernel_ocl_shader(
 	ccl_global float4 *output,
 	ccl_global float *output_luma,
 
-#define KERNEL_TEX(type, ttype, name) \
-	ccl_global type *name,
-#include "kernel/kernel_textures.h"
+	KERNEL_BUFFER_PARAMS,
 
 	int type, int sx, int sw, int offset, int sample)
 {
@@ -92,9 +87,8 @@ __kernel void kernel_ocl_shader(
 
 	kg->data = data;
 
-#define KERNEL_TEX(type, ttype, name) \
-	kg->name = name;
-#include "kernel/kernel_textures.h"
+	kernel_set_buffer_pointers(kg, KERNEL_BUFFER_ARGS);
+	kernel_set_buffer_info(kg);
 
 	int x = sx + ccl_global_id(0);
 
@@ -114,9 +108,7 @@ __kernel void kernel_ocl_bake(
 	ccl_global uint4 *input,
 	ccl_global float4 *output,
 
-#define KERNEL_TEX(type, ttype, name) \
-	ccl_global type *name,
-#include "kernel/kernel_textures.h"
+	KERNEL_BUFFER_PARAMS,
 
 	int type, int filter, int sx, int sw, int offset, int sample)
 {
@@ -124,9 +116,8 @@ __kernel void kernel_ocl_bake(
 
 	kg->data = data;
 
-#define KERNEL_TEX(type, ttype, name) \
-	kg->name = name;
-#include "kernel/kernel_textures.h"
+	kernel_set_buffer_pointers(kg, KERNEL_BUFFER_ARGS);
+	kernel_set_buffer_info(kg);
 
 	int x = sx + ccl_global_id(0);
 
@@ -144,9 +135,7 @@ __kernel void kernel_ocl_convert_to_byte(
 	ccl_global uchar4 *rgba,
 	ccl_global float *buffer,
 
-#define KERNEL_TEX(type, ttype, name) \
-	ccl_global type *name,
-#include "kernel/kernel_textures.h"
+	KERNEL_BUFFER_PARAMS,
 
 	float sample_scale,
 	int sx, int sy, int sw, int sh, int offset, int stride)
@@ -155,9 +144,8 @@ __kernel void kernel_ocl_convert_to_byte(
 
 	kg->data = data;
 
-#define KERNEL_TEX(type, ttype, name) \
-	kg->name = name;
-#include "kernel/kernel_textures.h"
+	kernel_set_buffer_pointers(kg, KERNEL_BUFFER_ARGS);
+	kernel_set_buffer_info(kg);
 
 	int x = sx + ccl_global_id(0);
 	int y = sy + ccl_global_id(1);
@@ -171,9 +159,7 @@ __kernel void kernel_ocl_convert_to_half_float(
 	ccl_global uchar4 *rgba,
 	ccl_global float *buffer,
 
-#define KERNEL_TEX(type, ttype, name) \
-	ccl_global type *name,
-#include "kernel/kernel_textures.h"
+	KERNEL_BUFFER_PARAMS,
 
 	float sample_scale,
 	int sx, int sy, int sw, int sh, int offset, int stride)
@@ -182,9 +168,8 @@ __kernel void kernel_ocl_convert_to_half_float(
 
 	kg->data = data;
 
-#define KERNEL_TEX(type, ttype, name) \
-	kg->name = name;
-#include "kernel/kernel_textures.h"
+	kernel_set_buffer_pointers(kg, KERNEL_BUFFER_ARGS);
+	kernel_set_buffer_info(kg);
 
 	int x = sx + ccl_global_id(0);
 	int y = sy + ccl_global_id(1);
@@ -193,7 +178,7 @@ __kernel void kernel_ocl_convert_to_half_float(
 		kernel_film_convert_to_half_float(kg, rgba, buffer, sample_scale, x, y, offset, stride);
 }
 
-__kernel void kernel_ocl_zero_buffer(ccl_global float4 *buffer, ulong size, ulong offset)
+__kernel void kernel_ocl_zero_buffer(ccl_global float4 *buffer, uint64_t size, uint64_t offset)
 {
 	size_t i = ccl_global_id(0) + ccl_global_id(1) * ccl_global_size(0);
 
diff --git a/intern/cycles/kernel/kernels/opencl/kernel_data_init.cl b/intern/cycles/kernel/kernels/opencl/kernel_data_init.cl
index 8b85d362f8a..95b35e40a45 100644
--- a/intern/cycles/kernel/kernels/opencl/kernel_data_init.cl
+++ b/intern/cycles/kernel/kernels/opencl/kernel_data_init.cl
@@ -25,11 +25,7 @@ __kernel void kernel_ocl_path_trace_data_init(
         int num_elements,
         ccl_global char *ray_state,
         ccl_global uint *rng_state,
-
-#define KERNEL_TEX(type, ttype, name)                                   \
-        ccl_global type *name,
-#include "kernel/kernel_textures.h"
-
+		KERNEL_BUFFER_PARAMS,
         int start_sample,
         int end_sample,
         int sx, int sy, int sw, int sh, int offset, int stride,
@@ -46,10 +42,7 @@ __kernel void kernel_ocl_path_trace_data_init(
 	                 num_elements,
 	                 ray_state,
 	                 rng_state,
-
-#define KERNEL_TEX(type, ttype, name) name,
-#include "kernel/kernel_textures.h"
-
+	                 KERNEL_BUFFER_ARGS,
 	                 start_sample,
 	                 end_sample,
 	                 sx, sy, sw, sh, offset, stride,
diff --git a/intern/cycles/kernel/kernels/opencl/kernel_split.cl b/intern/cycles/kernel/kernels/opencl/kernel_split.cl
index 651addb02f4..4cbda1bc2e7 100644
--- a/intern/cycles/kernel/kernels/opencl/kernel_split.cl
+++ b/intern/cycles/kernel/kernels/opencl/kernel_split.cl
@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 
+#include "kernel/kernel_compat_opencl.h"  // PRECOMPILED
+#include "kernel/split/kernel_split_common.h"  // PRECOMPILED
+
 #include "kernel/kernels/opencl/kernel_state_buffer_size.cl"
 #include "kernel/kernels/opencl/kernel_data_init.cl"
 #include "kernel/kernels/opencl/kernel_path_init.cl"
diff --git a/intern/cycles/kernel/kernels/opencl/kernel_split_function.h b/intern/cycles/kernel/kernels/opencl/kernel_split_function.h
index f1e914a70d4..591c3846ef2 100644
--- a/intern/cycles/kernel/kernels/opencl/kernel_split_function.h
+++ b/intern/cycles/kernel/kernels/opencl/kernel_split_function.h
@@ -25,9 +25,7 @@ __kernel void KERNEL_NAME_EVAL(kernel_ocl_path_trace, KERNEL_NAME)(
 		ccl_global char *ray_state,
 		ccl_global uint *rng_state,
 
-#define KERNEL_TEX(type, ttype, name) \
-		ccl_global type *name,
-#include "kernel/kernel_textures.h"
+		KERNEL_BUFFER_PARAMS,
 
 		ccl_global int *queue_index,
 		ccl_global char *use_queues_flag,
@@ -52,12 +50,9 @@ __kernel void KERNEL_NAME_EVAL(kernel_ocl_path_trace, KERNEL_NAME)(
 
 		split_data_init(kg, &kernel_split_state, ccl_global_size(0)*ccl_global_size(1), split_data_buffer, ray_state);
 
-#define KERNEL_TEX(type, ttype, name) \
-		kg->name = name;
-#include "kernel/kernel_textures.h"
 	}
 
-	ccl_barrier(CCL_LOCAL_MEM_FENCE);
+	kernel_set_buffer_pointers(kg, KERNEL_BUFFER_ARGS);
 
 	KERNEL_NAME_EVAL(kernel, KERNEL_NAME)(
 			kg
diff --git a/intern/cycles/kernel/osl/osl_globals.h b/intern/cycles/kernel/osl/osl_globals.h
index 02c083a83f8..9585d9f4825 100644
--- a/intern/cycles/kernel/osl/osl_globals.h
+++ b/intern/cycles/kernel/osl/osl_globals.h
@@ -86,7 +86,7 @@ struct OSLThreadData {
 	OSL::ShaderGlobals globals;
 	OSL::PerThreadInfo *osl_thread_info;
 	OSLTraceData tracedata;
-	OSL::ShadingContext *context[SHADER_CONTEXT_NUM];
+	OSL::ShadingContext *context;
 	OIIO::TextureSystem::Perthread *oiio_thread_info;
 };
 
diff --git a/intern/cycles/kernel/osl/osl_services.cpp b/intern/cycles/kernel/osl/osl_services.cpp
index 1535496c73d..8ad2e12b067 100644
--- a/intern/cycles/kernel/osl/osl_services.cpp
+++ b/intern/cycles/kernel/osl/osl_services.cpp
@@ -1197,8 +1197,9 @@ bool OSLRenderServices::trace(TraceOpt &options, OSL::ShaderGlobals *sg,
 	tracedata->init = true;
 	tracedata->sd.osl_globals = sd->osl_globals;
 
-	/* raytrace */
-	return scene_intersect(sd->osl_globals, ray, PATH_RAY_ALL_VISIBILITY, &tracedata->isect, NULL, 0.0f, 0.0f);
+	/* Raytrace, leaving out shadow opaque to avoid early exit. */
+	uint visibility = PATH_RAY_ALL_VISIBILITY - PATH_RAY_SHADOW_OPAQUE;
+	return scene_intersect(sd->osl_globals, ray, visibility, &tracedata->isect, NULL, 0.0f, 0.0f);
 }
 
 
diff --git a/intern/cycles/kernel/osl/osl_shader.cpp b/intern/cycles/kernel/osl/osl_shader.cpp
index 13b19d86eca..9a37e0987aa 100644
--- a/intern/cycles/kernel/osl/osl_shader.cpp
+++ b/intern/cycles/kernel/osl/osl_shader.cpp
@@ -57,9 +57,7 @@ void OSLShader::thread_init(KernelGlobals *kg, KernelGlobals *kernel_globals, OS
 	tdata->globals.tracedata = &tdata->tracedata;
 	tdata->globals.flipHandedness = false;
 	tdata->osl_thread_info = ss->create_thread_info();
-
-	for(int i = 0; i < SHADER_CONTEXT_NUM; i++)
-		tdata->context[i] = ss->get_context(tdata->osl_thread_info);
+	tdata->context = ss->get_context(tdata->osl_thread_info);
 
 	tdata->oiio_thread_info = osl_globals->ts->get_perthread_info();
 
@@ -74,9 +72,7 @@ void OSLShader::thread_free(KernelGlobals *kg)
 
 	OSL::ShadingSystem *ss = (OSL::ShadingSystem*)kg->osl_ss;
 	OSLThreadData *tdata = kg->osl_tdata;
-
-	for(int i = 0; i < SHADER_CONTEXT_NUM; i++)
-		ss->release_context(tdata->context[i]);
+	ss->release_context(tdata->context);
 
 	ss->destroy_thread_info(tdata->osl_thread_info);
 
@@ -173,7 +169,7 @@ static void flatten_surface_closure_tree(ShaderData *sd,
 	}
 }
 
-void OSLShader::eval_surface(KernelGlobals *kg, ShaderData *sd, PathState *state, int path_flag, ShaderContext ctx)
+void OSLShader::eval_surface(KernelGlobals *kg, ShaderData *sd, PathState *state, int path_flag)
 {
 	/* setup shader globals from shader data */
 	OSLThreadData *tdata = kg->osl_tdata;
@@ -182,7 +178,7 @@ void OSLShader::eval_surface(KernelGlobals *kg, ShaderData *sd, PathState *state
 	/* execute shader for this point */
 	OSL::ShadingSystem *ss = (OSL::ShadingSystem*)kg->osl_ss;
 	OSL::ShaderGlobals *globals = &tdata->globals;
-	OSL::ShadingContext *octx = tdata->context[(int)ctx];
+	OSL::ShadingContext *octx = tdata->context;
 	int shader = sd->shader & SHADER_MASK;
 
 	/* automatic bump shader */
@@ -274,7 +270,7 @@ static void flatten_background_closure_tree(ShaderData *sd,
 	}
 }
 
-void OSLShader::eval_background(KernelGlobals *kg, ShaderData *sd, PathState *state, int path_flag, ShaderContext ctx)
+void OSLShader::eval_background(KernelGlobals *kg, ShaderData *sd, PathState *state, int path_flag)
 {
 	/* setup shader globals from shader data */
 	OSLThreadData *tdata = kg->osl_tdata;
@@ -283,7 +279,7 @@ void OSLShader::eval_background(KernelGlobals *kg, ShaderData *sd, PathState *st
 	/* execute shader for this point */
 	OSL::ShadingSystem *ss = (OSL::ShadingSystem*)kg->osl_ss;
 	OSL::ShaderGlobals *globals = &tdata->globals;
-	OSL::ShadingContext *octx = tdata->context[(int)ctx];
+	OSL::ShadingContext *octx = tdata->context;
 
 	if(kg->osl->background_state) {
 		ss->execute(octx, *(kg->osl->background_state), *globals);
@@ -329,7 +325,7 @@ static void flatten_volume_closure_tree(ShaderData *sd,
 	}
 }
 
-void OSLShader::eval_volume(KernelGlobals *kg, ShaderData *sd, PathState *state, int path_flag, ShaderContext ctx)
+void OSLShader::eval_volume(KernelGlobals *kg, ShaderData *sd, PathState *state, int path_flag)
 {
 	/* setup shader globals from shader data */
 	OSLThreadData *tdata = kg->osl_tdata;
@@ -338,7 +334,7 @@ void OSLShader::eval_volume(KernelGlobals *kg, ShaderData *sd, PathState *state,
 	/* execute shader */
 	OSL::ShadingSystem *ss = (OSL::ShadingSystem*)kg->osl_ss;
 	OSL::ShaderGlobals *globals = &tdata->globals;
-	OSL::ShadingContext *octx = tdata->context[(int)ctx];
+	OSL::ShadingContext *octx = tdata->context;
 	int shader = sd->shader & SHADER_MASK;
 
 	if(kg->osl->volume_state[shader]) {
@@ -352,7 +348,7 @@ void OSLShader::eval_volume(KernelGlobals *kg, ShaderData *sd, PathState *state,
 
 /* Displacement */
 
-void OSLShader::eval_displacement(KernelGlobals *kg, ShaderData *sd, ShaderContext ctx)
+void OSLShader::eval_displacement(KernelGlobals *kg, ShaderData *sd)
 {
 	/* setup shader globals from shader data */
 	OSLThreadData *tdata = kg->osl_tdata;
@@ -364,7 +360,7 @@ void OSLShader::eval_displacement(KernelGlobals *kg, ShaderData *sd, ShaderConte
 	/* execute shader */
 	OSL::ShadingSystem *ss = (OSL::ShadingSystem*)kg->osl_ss;
 	OSL::ShaderGlobals *globals = &tdata->globals;
-	OSL::ShadingContext *octx = tdata->context[(int)ctx];
+	OSL::ShadingContext *octx = tdata->context;
 	int shader = sd->shader & SHADER_MASK;
 
 	if(kg->osl->displacement_state[shader]) {
diff --git a/intern/cycles/kernel/osl/osl_shader.h b/intern/cycles/kernel/osl/osl_shader.h
index 32121e940b4..f7020d1223d 100644
--- a/intern/cycles/kernel/osl/osl_shader.h
+++ b/intern/cycles/kernel/osl/osl_shader.h
@@ -53,10 +53,10 @@ public:
 	static void thread_free(KernelGlobals *kg);
 
 	/* eval */
-	static void eval_surface(KernelGlobals *kg, ShaderData *sd, PathState *state, int path_flag, ShaderContext ctx);
-	static void eval_background(KernelGlobals *kg, ShaderData *sd, PathState *state, int path_flag, ShaderContext ctx);
-	static void eval_volume(KernelGlobals *kg, ShaderData *sd, PathState *state, int path_flag, ShaderContext ctx);
-	static void eval_displacement(KernelGlobals *kg, ShaderData *sd, ShaderContext ctx);
+	static void eval_surface(KernelGlobals *kg, ShaderData *sd, PathState *state, int path_flag);
+	static void eval_background(KernelGlobals *kg, ShaderData *sd, PathState *state, int path_flag);
+	static void eval_volume(KernelGlobals *kg, ShaderData *sd, PathState *state, int path_flag);
+	static void eval_displacement(KernelGlobals *kg, ShaderData *sd);
 
 	/* attributes */
 	static int find_attribute(KernelGlobals *kg, const ShaderData *sd, uint id, AttributeDescriptor *desc);
diff --git a/intern/cycles/kernel/shaders/node_principled_bsdf.osl b/intern/cycles/kernel/shaders/node_principled_bsdf.osl
index 2bb981c3918..6870d479af3 100644
--- a/intern/cycles/kernel/shaders/node_principled_bsdf.osl
+++ b/intern/cycles/kernel/shaders/node_principled_bsdf.osl
@@ -76,8 +76,8 @@ shader node_principled_bsdf(
 		float aspect = sqrt(1.0 - Anisotropic * 0.9);
 		float r2 = Roughness * Roughness;
 
-		float alpha_x = max(0.001, r2 / aspect);
-		float alpha_y = max(0.001, r2 * aspect);
+		float alpha_x = r2 / aspect;
+		float alpha_y = r2 * aspect;
 
 		color tmp_col = color(1.0, 1.0, 1.0) * (1.0 - SpecularTint) + m_ctint * SpecularTint;
 
diff --git a/intern/cycles/kernel/split/kernel_branched.h b/intern/cycles/kernel/split/kernel_branched.h
index e2762a85fc8..2313feac089 100644
--- a/intern/cycles/kernel/split/kernel_branched.h
+++ b/intern/cycles/kernel/split/kernel_branched.h
@@ -87,7 +87,6 @@ ccl_device_inline bool kernel_split_branched_indirect_start_shared(KernelGlobals
 	PathRadiance *inactive_L = &kernel_split_state.path_radiance[inactive_ray];
 
 	path_radiance_init(inactive_L, kernel_data.film.use_light_pass);
-	inactive_L->direct_throughput = L->direct_throughput;
 	path_radiance_copy_indirect(inactive_L, L);
 
 	ray_state[inactive_ray] = RAY_REGENERATED;
@@ -110,7 +109,6 @@ ccl_device_noinline bool kernel_split_branched_path_surface_indirect_light_iter(
 	SplitBranchedState *branched_state = &kernel_split_state.branched_state[ray_index];
 
 	ShaderData *sd = saved_sd;
-	RNG rng = kernel_split_state.rng[ray_index];
 	PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
 	float3 throughput = branched_state->throughput;
 	ccl_global PathState *ps = &kernel_split_state.path_state[ray_index];
@@ -157,37 +155,38 @@ ccl_device_noinline bool kernel_split_branched_path_surface_indirect_light_iter(
 		num_samples = ceil_to_int(num_samples_adjust*num_samples);
 
 		float num_samples_inv = num_samples_adjust/num_samples;
-		RNG bsdf_rng = cmj_hash(rng, i);
 
 		for(int j = branched_state->next_sample; j < num_samples; j++) {
 			if(reset_path_state) {
 				*ps = branched_state->path_state;
 			}
 
+			ps->rng_hash = cmj_hash(branched_state->path_state.rng_hash, i);
+
 			ccl_global float3 *tp = &kernel_split_state.throughput[ray_index];
 			*tp = throughput;
 
 			ccl_global Ray *bsdf_ray = &kernel_split_state.ray[ray_index];
 
 			if(!kernel_branched_path_surface_bounce(kg,
-			                                        &bsdf_rng,
 			                                        sd,
 			                                        sc,
 			                                        j,
 			                                        num_samples,
 			                                        tp,
 			                                        ps,
-			                                        L,
+			                                        &L->state,
 			                                        bsdf_ray,
 			                                        sum_sample_weight))
 			{
 				continue;
 			}
 
+			ps->rng_hash = branched_state->path_state.rng_hash;
+
 			/* update state for next iteration */
 			branched_state->next_closure = i;
 			branched_state->next_sample = j+1;
-			branched_state->num_samples = num_samples;
 
 			/* start the indirect path */
 			*tp *= num_samples_inv;
diff --git a/intern/cycles/kernel/split/kernel_buffer_update.h b/intern/cycles/kernel/split/kernel_buffer_update.h
index 4c1fdd2d69c..c9e7deddafa 100644
--- a/intern/cycles/kernel/split/kernel_buffer_update.h
+++ b/intern/cycles/kernel/split/kernel_buffer_update.h
@@ -75,92 +75,59 @@ ccl_device void kernel_buffer_update(KernelGlobals *kg,
 	if(ray_index != QUEUE_EMPTY_SLOT) {
 #endif
 
-	ccl_global uint *rng_state = kernel_split_params.rng_state;
 	int stride = kernel_split_params.stride;
 
 	ccl_global char *ray_state = kernel_split_state.ray_state;
-#ifdef __KERNEL_DEBUG__
-	DebugData *debug_data = &kernel_split_state.debug_data[ray_index];
-#endif
 	ccl_global PathState *state = &kernel_split_state.path_state[ray_index];
 	PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
 	ccl_global Ray *ray = &kernel_split_state.ray[ray_index];
 	ccl_global float3 *throughput = &kernel_split_state.throughput[ray_index];
-	ccl_global float *L_transparent = &kernel_split_state.L_transparent[ray_index];
-	RNG rng = kernel_split_state.rng[ray_index];
-	ccl_global float *buffer = kernel_split_params.buffer;
-
-	unsigned int work_index;
-	ccl_global uint *initial_rng;
-
-	unsigned int sample;
-	unsigned int tile_x;
-	unsigned int tile_y;
-	unsigned int pixel_x;
-	unsigned int pixel_y;
-
-	work_index = kernel_split_state.work_array[ray_index];
-	sample = get_work_sample(kg, work_index, ray_index) + kernel_split_params.start_sample;
-	get_work_pixel_tile_position(kg, &pixel_x, &pixel_y,
-	                        &tile_x, &tile_y,
-	                        work_index,
-	                        ray_index);
-	initial_rng = rng_state;
-
-	rng_state += kernel_split_params.offset + pixel_x + pixel_y*stride;
-	buffer += (kernel_split_params.offset + pixel_x + pixel_y*stride) * kernel_data.film.pass_stride;
 
 	if(IS_STATE(ray_state, ray_index, RAY_UPDATE_BUFFER)) {
-#ifdef __KERNEL_DEBUG__
-		kernel_write_debug_passes(kg, buffer, state, debug_data, sample);
-#endif
+		uint sample = state->sample;
+		uint buffer_offset = kernel_split_state.buffer_offset[ray_index];
+		ccl_global float *buffer = kernel_split_params.buffer + buffer_offset;
 
 		/* accumulate result in output buffer */
-		bool is_shadow_catcher = (state->flag & PATH_RAY_SHADOW_CATCHER);
-		kernel_write_result(kg, buffer, sample, L, 1.0f - (*L_transparent), is_shadow_catcher);
-
-		path_rng_end(kg, rng_state, rng);
+		kernel_write_result(kg, buffer, sample, L);
 
 		ASSIGN_RAY_STATE(ray_state, ray_index, RAY_TO_REGENERATE);
 	}
 
 	if(IS_STATE(ray_state, ray_index, RAY_TO_REGENERATE)) {
 		/* We have completed current work; So get next work */
-		int valid_work = get_next_work(kg, &work_index, ray_index);
-		if(!valid_work) {
+		uint work_index;
+		if(!get_next_work(kg, ray_index, &work_index)) {
 			/* If work is invalid, this means no more work is available and the thread may exit */
 			ASSIGN_RAY_STATE(ray_state, ray_index, RAY_INACTIVE);
 		}
 
 		if(IS_STATE(ray_state, ray_index, RAY_TO_REGENERATE)) {
-			kernel_split_state.work_array[ray_index] = work_index;
-			/* Get the sample associated with the current work */
-			sample = get_work_sample(kg, work_index, ray_index) + kernel_split_params.start_sample;
-			/* Get pixel and tile position associated with current work */
-			get_work_pixel_tile_position(kg, &pixel_x, &pixel_y, &tile_x, &tile_y, work_index, ray_index);
+			uint x, y, sample;
+			get_work_pixel(kg, work_index, &x, &y, &sample);
 
-			/* Remap rng_state according to the current work */
-			rng_state = initial_rng + kernel_split_params.offset + pixel_x + pixel_y*stride;
-			/* Remap buffer according to the current work */
-			buffer += (kernel_split_params.offset + pixel_x + pixel_y*stride) * kernel_data.film.pass_stride;
+			/* Remap rng_state to current pixel. */
+			ccl_global uint *rng_state = kernel_split_params.rng_state;
+			rng_state += kernel_split_params.offset + x + y*stride;
+
+			/* Store buffer offset for writing to passes. */
+			uint buffer_offset = (kernel_split_params.offset + x + y*stride) * kernel_data.film.pass_stride;
+			kernel_split_state.buffer_offset[ray_index] = buffer_offset;
 
 			/* Initialize random numbers and ray. */
-			kernel_path_trace_setup(kg, rng_state, sample, pixel_x, pixel_y, &rng, ray);
+			uint rng_hash;
+			kernel_path_trace_setup(kg, rng_state, sample, x, y, &rng_hash, ray);
 
 			if(ray->t != 0.0f) {
-				/* Initialize throughput, L_transparent, Ray, PathState;
+				/* Initialize throughput, path radiance, Ray, PathState;
 				 * These rays proceed with path-iteration.
 				 */
 				*throughput = make_float3(1.0f, 1.0f, 1.0f);
-				*L_transparent = 0.0f;
 				path_radiance_init(L, kernel_data.film.use_light_pass);
-				path_state_init(kg, &kernel_split_state.sd_DL_shadow[ray_index], state, &rng, sample, ray);
+				path_state_init(kg, &kernel_split_state.sd_DL_shadow[ray_index], state, rng_hash, sample, ray);
 #ifdef __SUBSURFACE__
 				kernel_path_subsurface_init_indirect(&kernel_split_state.ss_rays[ray_index]);
 #endif
-#ifdef __KERNEL_DEBUG__
-				debug_data_init(debug_data);
-#endif
 				ASSIGN_RAY_STATE(ray_state, ray_index, RAY_REGENERATED);
 				enqueue_flag = 1;
 			}
@@ -168,14 +135,13 @@ ccl_device void kernel_buffer_update(KernelGlobals *kg,
 				/* These rays do not participate in path-iteration. */
 				float4 L_rad = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
 				/* Accumulate result in output buffer. */
+				ccl_global float *buffer = kernel_split_params.buffer + buffer_offset;
 				kernel_write_pass_float4(buffer, sample, L_rad);
-				path_rng_end(kg, rng_state, rng);
 
 				ASSIGN_RAY_STATE(ray_state, ray_index, RAY_TO_REGENERATE);
 			}
 		}
 	}
-	kernel_split_state.rng[ray_index] = rng;
 
 #ifndef __COMPUTE_DEVICE_GPU__
 	}
diff --git a/intern/cycles/kernel/split/kernel_data_init.h b/intern/cycles/kernel/split/kernel_data_init.h
index e4545d66eff..2c042dfde6f 100644
--- a/intern/cycles/kernel/split/kernel_data_init.h
+++ b/intern/cycles/kernel/split/kernel_data_init.h
@@ -52,9 +52,7 @@ void KERNEL_FUNCTION_FULL_NAME(data_init)(
         ccl_global uint *rng_state,
 
 #ifdef __KERNEL_OPENCL__
-#define KERNEL_TEX(type, ttype, name)                                   \
-        ccl_global type *name,
-#include "kernel/kernel_textures.h"
+		KERNEL_BUFFER_PARAMS,
 #endif
 
         int start_sample,
@@ -100,9 +98,8 @@ void KERNEL_FUNCTION_FULL_NAME(data_init)(
 	split_data_init(kg, &kernel_split_state, num_elements, split_data_buffer, ray_state);
 
 #ifdef __KERNEL_OPENCL__
-#define KERNEL_TEX(type, ttype, name) \
-	kg->name = name;
-#include "kernel/kernel_textures.h"
+	kernel_set_buffer_pointers(kg, KERNEL_BUFFER_ARGS);
+	kernel_set_buffer_info(kg);
 #endif
 
 	int thread_index = ccl_global_id(1) * ccl_global_size(0) + ccl_global_id(0);
@@ -127,14 +124,25 @@ void KERNEL_FUNCTION_FULL_NAME(data_init)(
 
 	/* zero the tiles pixels and initialize rng_state if this is the first sample */
 	if(start_sample == 0) {
-		parallel_for(kg, i, sw * sh * kernel_data.film.pass_stride) {
-			int pixel = i / kernel_data.film.pass_stride;
-			int pass = i % kernel_data.film.pass_stride;
+		int pass_stride = kernel_data.film.pass_stride;
+
+#ifdef __KERNEL_CPU__
+		for(int y = sy; y < sy + sh; y++) {
+			int index = offset + y * stride;
+			memset(buffer + (sx + index) * pass_stride, 0, sizeof(float) * pass_stride * sw);
+			for(int x = sx; x < sx + sw; x++) {
+				rng_state[index + x] = hash_int_2d(x, y);
+			}
+		}
+#else
+		parallel_for(kg, i, sw * sh * pass_stride) {
+			int pixel = i / pass_stride;
+			int pass = i % pass_stride;
 
 			int x = sx + pixel % sw;
 			int y = sy + pixel / sw;
 
-			int index = (offset + x + y*stride) * kernel_data.film.pass_stride + pass;
+			int index = (offset + x + y*stride) * pass_stride + pass;
 
 			*(buffer + index) = 0.0f;
 		}
@@ -146,6 +154,7 @@ void KERNEL_FUNCTION_FULL_NAME(data_init)(
 			int index = (offset + x + y*stride);
 			*(rng_state + index) = hash_int_2d(x, y);
 		}
+#endif
 	}
 
 #endif  /* KERENL_STUB */
diff --git a/intern/cycles/kernel/split/kernel_direct_lighting.h b/intern/cycles/kernel/split/kernel_direct_lighting.h
index 3336c968a44..2aac66ecb84 100644
--- a/intern/cycles/kernel/split/kernel_direct_lighting.h
+++ b/intern/cycles/kernel/split/kernel_direct_lighting.h
@@ -62,8 +62,6 @@ ccl_device void kernel_direct_lighting(KernelGlobals *kg,
 
 		/* direct lighting */
 #ifdef __EMISSION__
-		RNG rng = kernel_split_state.rng[ray_index];
-
 		bool flag = (kernel_data.integrator.use_direct_light &&
 		             (sd->flag & SD_BSDF_HAS_EVAL));
 
@@ -83,23 +81,20 @@ ccl_device void kernel_direct_lighting(KernelGlobals *kg,
 
 		if(flag) {
 			/* Sample illumination from lights to find path contribution. */
-			float light_t = path_state_rng_1D(kg, &rng, state, PRNG_LIGHT);
 			float light_u, light_v;
-			path_state_rng_2D(kg, &rng, state, PRNG_LIGHT_U, &light_u, &light_v);
-			float terminate = path_state_rng_light_termination(kg, &rng, state);
+			path_state_rng_2D(kg, state, PRNG_LIGHT_U, &light_u, &light_v);
+			float terminate = path_state_rng_light_termination(kg, state);
 
 			LightSample ls;
 			if(light_sample(kg,
-			                light_t, light_u, light_v,
+			                light_u, light_v,
 			                sd->time,
 			                sd->P,
 			                state->bounce,
 			                &ls)) {
 
 				Ray light_ray;
-#  ifdef __OBJECT_MOTION__
 				light_ray.time = sd->time;
-#  endif
 
 				BsdfEval L_light;
 				bool is_lamp;
@@ -115,7 +110,6 @@ ccl_device void kernel_direct_lighting(KernelGlobals *kg,
 				}
 			}
 		}
-		kernel_split_state.rng[ray_index] = rng;
 #endif  /* __EMISSION__ */
 	}
 
diff --git a/intern/cycles/kernel/split/kernel_do_volume.h b/intern/cycles/kernel/split/kernel_do_volume.h
index 9f8dd2392d9..491487f1230 100644
--- a/intern/cycles/kernel/split/kernel_do_volume.h
+++ b/intern/cycles/kernel/split/kernel_do_volume.h
@@ -30,7 +30,6 @@ ccl_device_noinline bool kernel_split_branched_path_volume_indirect_light_iter(K
 	SplitBranchedState *branched_state = &kernel_split_state.branched_state[ray_index];
 
 	ShaderData *sd = &kernel_split_state.sd[ray_index];
-	RNG rng = kernel_split_state.rng[ray_index];
 	PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
 	ShaderData *emission_sd = &kernel_split_state.sd_DL_shadow[ray_index];
 
@@ -58,22 +57,21 @@ ccl_device_noinline bool kernel_split_branched_path_volume_indirect_light_iter(K
 
 		/* integrate along volume segment with distance sampling */
 		VolumeIntegrateResult result = kernel_volume_integrate(
-			kg, ps, sd, &volume_ray, L, tp, &rng, heterogeneous);
+			kg, ps, sd, &volume_ray, L, tp, heterogeneous);
 
 #  ifdef __VOLUME_SCATTER__
 		if(result == VOLUME_PATH_SCATTERED) {
 			/* direct lighting */
-			kernel_path_volume_connect_light(kg, &rng, sd, emission_sd, *tp, &branched_state->path_state, L);
+			kernel_path_volume_connect_light(kg, sd, emission_sd, *tp, &branched_state->path_state, L);
 
 			/* indirect light bounce */
-			if(!kernel_path_volume_bounce(kg, &rng, sd, tp, ps, L, pray)) {
+			if(!kernel_path_volume_bounce(kg, sd, tp, ps, &L->state, pray)) {
 				continue;
 			}
 
 			/* start the indirect path */
 			branched_state->next_closure = 0;
 			branched_state->next_sample = j+1;
-			branched_state->num_samples = num_samples;
 
 			/* Attempting to share too many samples is slow for volumes as it causes us to
 			 * loop here more and have many calls to kernel_volume_integrate which evaluates
@@ -141,7 +139,6 @@ ccl_device void kernel_do_volume(KernelGlobals *kg)
 	   IS_STATE(ray_state, ray_index, RAY_HIT_BACKGROUND)) {
 		ccl_global float3 *throughput = &kernel_split_state.throughput[ray_index];
 		ccl_global Ray *ray = &kernel_split_state.ray[ray_index];
-		RNG rng = kernel_split_state.rng[ray_index];
 		ccl_global Intersection *isect = &kernel_split_state.isect[ray_index];
 		ShaderData *sd = &kernel_split_state.sd[ray_index];
 		ShaderData *emission_sd = &kernel_split_state.sd_DL_shadow[ray_index];
@@ -165,15 +162,15 @@ ccl_device void kernel_do_volume(KernelGlobals *kg)
 				{
 					/* integrate along volume segment with distance sampling */
 					VolumeIntegrateResult result = kernel_volume_integrate(
-						kg, state, sd, &volume_ray, L, throughput, &rng, heterogeneous);
+						kg, state, sd, &volume_ray, L, throughput, heterogeneous);
 
 #  ifdef __VOLUME_SCATTER__
 					if(result == VOLUME_PATH_SCATTERED) {
 						/* direct lighting */
-						kernel_path_volume_connect_light(kg, &rng, sd, emission_sd, *throughput, state, L);
+						kernel_path_volume_connect_light(kg, sd, emission_sd, *throughput, state, L);
 
 						/* indirect light bounce */
-						if(kernel_path_volume_bounce(kg, &rng, sd, throughput, state, L, ray)) {
+						if(kernel_path_volume_bounce(kg, sd, throughput, state, &L->state, ray)) {
 							ASSIGN_RAY_STATE(ray_state, ray_index, RAY_REGENERATED);
 						}
 						else {
@@ -194,8 +191,6 @@ ccl_device void kernel_do_volume(KernelGlobals *kg)
 			}
 #  endif  /* __BRANCHED_PATH__ */
 		}
-
-		kernel_split_state.rng[ray_index] = rng;
 	}
 
 #  ifdef __BRANCHED_PATH__
diff --git a/intern/cycles/kernel/split/kernel_holdout_emission_blurring_pathtermination_ao.h b/intern/cycles/kernel/split/kernel_holdout_emission_blurring_pathtermination_ao.h
index 670a557f084..dffd291012d 100644
--- a/intern/cycles/kernel/split/kernel_holdout_emission_blurring_pathtermination_ao.h
+++ b/intern/cycles/kernel/split/kernel_holdout_emission_blurring_pathtermination_ao.h
@@ -90,163 +90,58 @@ ccl_device void kernel_holdout_emission_blurring_pathtermination_ao(
 	if(ray_index != QUEUE_EMPTY_SLOT) {
 #endif
 
-	int stride = kernel_split_params.stride;
-
-	unsigned int work_index;
-	unsigned int pixel_x;
-	unsigned int pixel_y;
-
-	unsigned int tile_x;
-	unsigned int tile_y;
-	unsigned int sample;
-
-	RNG rng = kernel_split_state.rng[ray_index];
 	ccl_global PathState *state = 0x0;
 	float3 throughput;
 
 	ccl_global char *ray_state = kernel_split_state.ray_state;
 	ShaderData *sd = &kernel_split_state.sd[ray_index];
-	ccl_global float *buffer = kernel_split_params.buffer;
 
 	if(IS_STATE(ray_state, ray_index, RAY_ACTIVE)) {
+		uint buffer_offset = kernel_split_state.buffer_offset[ray_index];
+		ccl_global float *buffer = kernel_split_params.buffer + buffer_offset;
+
+		ccl_global Ray *ray = &kernel_split_state.ray[ray_index];
+		ShaderData *emission_sd = &kernel_split_state.sd_DL_shadow[ray_index];
+		PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
 
 		throughput = kernel_split_state.throughput[ray_index];
 		state = &kernel_split_state.path_state[ray_index];
 
-		work_index = kernel_split_state.work_array[ray_index];
-		sample = get_work_sample(kg, work_index, ray_index) + kernel_split_params.start_sample;
-		get_work_pixel_tile_position(kg, &pixel_x, &pixel_y,
-		                        &tile_x, &tile_y,
-		                        work_index,
-		                        ray_index);
-
-		buffer += (kernel_split_params.offset + pixel_x + pixel_y * stride) * kernel_data.film.pass_stride;
-
-#ifdef __SHADOW_TRICKS__
-		if((sd->object_flag & SD_OBJECT_SHADOW_CATCHER)) {
-			if(state->flag & PATH_RAY_CAMERA) {
-				state->flag |= (PATH_RAY_SHADOW_CATCHER | PATH_RAY_SHADOW_CATCHER_ONLY | PATH_RAY_STORE_SHADOW_INFO);
-				state->catcher_object = sd->object;
-				if(!kernel_data.background.transparent) {
-					PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
-					ccl_global Ray *ray = &kernel_split_state.ray[ray_index];
-					L->shadow_color = indirect_background(kg, &kernel_split_state.sd_DL_shadow[ray_index], state, ray);
-				}
-			}
-		}
-		else {
-			state->flag &= ~PATH_RAY_SHADOW_CATCHER_ONLY;
-		}
-#endif  /* __SHADOW_TRICKS__ */
-
-		/* holdout */
-#ifdef __HOLDOUT__
-		if(((sd->flag & SD_HOLDOUT) ||
-		    (sd->object_flag & SD_OBJECT_HOLDOUT_MASK)) &&
-		   (state->flag & PATH_RAY_CAMERA))
+		if(!kernel_path_shader_apply(kg,
+		                             sd,
+		                             state,
+		                             ray,
+		                             throughput,
+		                             emission_sd,
+		                             L,
+		                             buffer))
 		{
-			if(kernel_data.background.transparent) {
-				float3 holdout_weight;
-				if(sd->object_flag & SD_OBJECT_HOLDOUT_MASK) {
-					holdout_weight = make_float3(1.0f, 1.0f, 1.0f);
-				}
-				else {
-					holdout_weight = shader_holdout_eval(kg, sd);
-				}
-				/* any throughput is ok, should all be identical here */
-				kernel_split_state.L_transparent[ray_index] += average(holdout_weight*throughput);
-			}
-			if(sd->object_flag & SD_OBJECT_HOLDOUT_MASK) {
-				kernel_split_path_end(kg, ray_index);
-			}
+			kernel_split_path_end(kg, ray_index);
 		}
-#endif  /* __HOLDOUT__ */
 	}
 
 	if(IS_STATE(ray_state, ray_index, RAY_ACTIVE)) {
-		PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
-
-#ifdef __BRANCHED_PATH__
-		if(!IS_FLAG(ray_state, ray_index, RAY_BRANCHED_INDIRECT))
-#endif  /* __BRANCHED_PATH__ */
-		{
-			/* Holdout mask objects do not write data passes. */
-			kernel_write_data_passes(kg,
-				                     buffer,
-				                     L,
-				                     sd,
-				                     sample,
-				                     state,
-				                     throughput);
-		}
-
-		/* Blurring of bsdf after bounces, for rays that have a small likelihood
-		 * of following this particular path (diffuse, rough glossy.
-		 */
-#ifndef __BRANCHED_PATH__
-		if(kernel_data.integrator.filter_glossy != FLT_MAX)
-#else
-		if(kernel_data.integrator.filter_glossy != FLT_MAX &&
-		   (!kernel_data.integrator.branched || IS_FLAG(ray_state, ray_index, RAY_BRANCHED_INDIRECT)))
-#endif  /* __BRANCHED_PATH__ */
-		{
-			float blur_pdf = kernel_data.integrator.filter_glossy*state->min_ray_pdf;
-			if(blur_pdf < 1.0f) {
-				float blur_roughness = sqrtf(1.0f - blur_pdf)*0.5f;
-				shader_bsdf_blur(kg, sd, blur_roughness);
-			}
-		}
-
-#ifdef __EMISSION__
-		/* emission */
-		if(sd->flag & SD_EMISSION) {
-			/* TODO(sergey): is isect.t wrong here for transparent surfaces? */
-			float3 emission = indirect_primitive_emission(
-			        kg,
-			        sd,
-			        kernel_split_state.isect[ray_index].t,
-			        state->flag,
-			        state->ray_pdf);
-			path_radiance_accum_emission(L, throughput, emission, state->bounce);
-		}
-#endif  /* __EMISSION__ */
-
 		/* Path termination. this is a strange place to put the termination, it's
 		 * mainly due to the mixed in MIS that we use. gives too many unneeded
 		 * shader evaluations, only need emission if we are going to terminate.
 		 */
-#ifndef __BRANCHED_PATH__
-		float probability = path_state_terminate_probability(kg, state, throughput);
-#else
-		float probability = 1.0f;
-
-		if(!kernel_data.integrator.branched) {
-			probability = path_state_terminate_probability(kg, state, throughput);
-		}
-		else if(IS_FLAG(ray_state, ray_index, RAY_BRANCHED_INDIRECT)) {
-			int num_samples = kernel_split_state.branched_state[ray_index].num_samples;
-			probability = path_state_terminate_probability(kg, state, throughput*num_samples);
-		}
-		else if(state->flag & PATH_RAY_TRANSPARENT) {
-			probability = path_state_terminate_probability(kg, state, throughput);
-		}
-#endif
+		float probability = path_state_continuation_probability(kg, state, throughput);
 
 		if(probability == 0.0f) {
 			kernel_split_path_end(kg, ray_index);
 		}
-
-		if(IS_STATE(ray_state, ray_index, RAY_ACTIVE)) {
-			if(probability != 1.0f) {
-				float terminate = path_state_rng_1D_for_decision(kg, &rng, state, PRNG_TERMINATE);
-				if(terminate >= probability) {
-					kernel_split_path_end(kg, ray_index);
-				}
-				else {
-					kernel_split_state.throughput[ray_index] = throughput/probability;
-				}
+		else if(probability < 1.0f) {
+			float terminate = path_state_rng_1D(kg, state, PRNG_TERMINATE);
+			if(terminate >= probability) {
+				kernel_split_path_end(kg, ray_index);
 			}
+			else {
+				kernel_split_state.throughput[ray_index] = throughput/probability;
+			}
+		}
 
+		if(IS_STATE(ray_state, ray_index, RAY_ACTIVE)) {
+			PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
 			kernel_update_denoising_features(kg, sd, state, L);
 		}
 	}
@@ -260,8 +155,6 @@ ccl_device void kernel_holdout_emission_blurring_pathtermination_ao(
 	}
 #endif  /* __AO__ */
 
-	kernel_split_state.rng[ray_index] = rng;
-
 #ifndef __COMPUTE_DEVICE_GPU__
 	}
 #endif
diff --git a/intern/cycles/kernel/split/kernel_indirect_background.h b/intern/cycles/kernel/split/kernel_indirect_background.h
index f0ebb90f60a..437043a5971 100644
--- a/intern/cycles/kernel/split/kernel_indirect_background.h
+++ b/intern/cycles/kernel/split/kernel_indirect_background.h
@@ -33,7 +33,7 @@ ccl_device void kernel_indirect_background(KernelGlobals *kg)
 		if(ray_index != QUEUE_EMPTY_SLOT) {
 			if(IS_STATE(ray_state, ray_index, RAY_ACTIVE)) {
 				ccl_global PathState *state = &kernel_split_state.path_state[ray_index];
-				if(state->bounce > kernel_data.integrator.ao_bounces) {
+				if(path_state_ao_bounce(kg, state)) {
 					kernel_split_path_end(kg, ray_index);
 				}
 			}
@@ -50,33 +50,16 @@ ccl_device void kernel_indirect_background(KernelGlobals *kg)
 		return;
 	}
 
-	ccl_global PathState *state = &kernel_split_state.path_state[ray_index];
-	PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
-	ccl_global Ray *ray = &kernel_split_state.ray[ray_index];
-	ccl_global float3 *throughput = &kernel_split_state.throughput[ray_index];
-	ccl_global float *L_transparent = &kernel_split_state.L_transparent[ray_index];
-
 	if(IS_STATE(ray_state, ray_index, RAY_HIT_BACKGROUND)) {
-		/* eval background shader if nothing hit */
-		if(kernel_data.background.transparent && (state->flag & PATH_RAY_CAMERA)) {
-			*L_transparent = (*L_transparent) + average((*throughput));
-#ifdef __PASSES__
-			if(!(kernel_data.film.pass_flag & PASS_BACKGROUND))
-#endif
-				kernel_split_path_end(kg, ray_index);
-		}
+		ccl_global PathState *state = &kernel_split_state.path_state[ray_index];
+		PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
+		ccl_global Ray *ray = &kernel_split_state.ray[ray_index];
+		float3 throughput = kernel_split_state.throughput[ray_index];
+		ShaderData *emission_sd = &kernel_split_state.sd_DL_shadow[ray_index];
 
-		if(IS_STATE(ray_state, ray_index, RAY_HIT_BACKGROUND)) {
-#ifdef __BACKGROUND__
-			/* sample background shader */
-			float3 L_background = indirect_background(kg, &kernel_split_state.sd_DL_shadow[ray_index], state, ray);
-			path_radiance_accum_background(L, state, (*throughput), L_background);
-#endif
-			kernel_split_path_end(kg, ray_index);
-		}
+		kernel_path_background(kg, state, ray, throughput, emission_sd, L);
+		kernel_split_path_end(kg, ray_index);
 	}
-
-
 }
 
 CCL_NAMESPACE_END
diff --git a/intern/cycles/kernel/split/kernel_indirect_subsurface.h b/intern/cycles/kernel/split/kernel_indirect_subsurface.h
index 82bc2f01fd7..e9fe5552e8c 100644
--- a/intern/cycles/kernel/split/kernel_indirect_subsurface.h
+++ b/intern/cycles/kernel/split/kernel_indirect_subsurface.h
@@ -54,7 +54,6 @@ ccl_device void kernel_indirect_subsurface(KernelGlobals *kg)
 #endif
 		if(IS_STATE(ray_state, ray_index, RAY_UPDATE_BUFFER)) {
 			ccl_addr_space SubsurfaceIndirectRays *ss_indirect = &kernel_split_state.ss_rays[ray_index];
-			kernel_path_subsurface_accum_indirect(ss_indirect, L);
 
 			/* Trace indirect subsurface rays by restarting the loop. this uses less
 			 * stack memory than invoking kernel_path_indirect.
diff --git a/intern/cycles/kernel/split/kernel_lamp_emission.h b/intern/cycles/kernel/split/kernel_lamp_emission.h
index c669d79ddcd..448456d167d 100644
--- a/intern/cycles/kernel/split/kernel_lamp_emission.h
+++ b/intern/cycles/kernel/split/kernel_lamp_emission.h
@@ -57,27 +57,10 @@ ccl_device void kernel_lamp_emission(KernelGlobals *kg)
 
 		float3 throughput = kernel_split_state.throughput[ray_index];
 		Ray ray = kernel_split_state.ray[ray_index];
+		ccl_global Intersection *isect = &kernel_split_state.isect[ray_index];
+		ShaderData *emission_sd = &kernel_split_state.sd_DL_shadow[ray_index];
 
-#ifdef __LAMP_MIS__
-		if(kernel_data.integrator.use_lamp_mis && !(state->flag & PATH_RAY_CAMERA)) {
-			/* ray starting from previous non-transparent bounce */
-			Ray light_ray;
-
-			light_ray.P = ray.P - state->ray_t*ray.D;
-			state->ray_t += kernel_split_state.isect[ray_index].t;
-			light_ray.D = ray.D;
-			light_ray.t = state->ray_t;
-			light_ray.time = ray.time;
-			light_ray.dD = ray.dD;
-			light_ray.dP = ray.dP;
-			/* intersect with lamp */
-			float3 emission;
-
-			if(indirect_lamp_emission(kg, &kernel_split_state.sd_DL_shadow[ray_index], state, &light_ray, &emission)) {
-				path_radiance_accum_emission(L, throughput, emission, state->bounce);
-			}
-		}
-#endif  /* __LAMP_MIS__ */
+		kernel_path_lamp_emission(kg, state, &ray, throughput, isect, emission_sd, L);
 	}
 }
 
diff --git a/intern/cycles/kernel/split/kernel_next_iteration_setup.h b/intern/cycles/kernel/split/kernel_next_iteration_setup.h
index 7758e35fd32..c3373174582 100644
--- a/intern/cycles/kernel/split/kernel_next_iteration_setup.h
+++ b/intern/cycles/kernel/split/kernel_next_iteration_setup.h
@@ -126,7 +126,6 @@ ccl_device void kernel_next_iteration_setup(KernelGlobals *kg,
 	if(active) {
 		ccl_global float3 *throughput = &kernel_split_state.throughput[ray_index];
 		ccl_global Ray *ray = &kernel_split_state.ray[ray_index];
-		RNG rng = kernel_split_state.rng[ray_index];
 		ShaderData *sd = &kernel_split_state.sd[ray_index];
 		ccl_global PathState *state = &kernel_split_state.path_state[ray_index];
 		PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
@@ -135,7 +134,7 @@ ccl_device void kernel_next_iteration_setup(KernelGlobals *kg,
 		if(!kernel_data.integrator.branched || IS_FLAG(ray_state, ray_index, RAY_BRANCHED_INDIRECT)) {
 #endif
 			/* Compute direct lighting and next bounce. */
-			if(!kernel_path_surface_bounce(kg, &rng, sd, throughput, state, L, ray)) {
+			if(!kernel_path_surface_bounce(kg, sd, throughput, state, &L->state, ray)) {
 				kernel_split_path_end(kg, ray_index);
 			}
 #ifdef __BRANCHED_PATH__
@@ -157,8 +156,6 @@ ccl_device void kernel_next_iteration_setup(KernelGlobals *kg,
 			}
 		}
 #endif  /* __BRANCHED_PATH__ */
-
-		kernel_split_state.rng[ray_index] = rng;
 	}
 
 	/* Enqueue RAY_UPDATE_BUFFER rays. */
diff --git a/intern/cycles/kernel/split/kernel_path_init.h b/intern/cycles/kernel/split/kernel_path_init.h
index a7ecde7c80d..0ab2289348b 100644
--- a/intern/cycles/kernel/split/kernel_path_init.h
+++ b/intern/cycles/kernel/split/kernel_path_init.h
@@ -29,77 +29,59 @@ ccl_device void kernel_path_init(KernelGlobals *kg) {
 	 */
 	kernel_split_state.ray_state[ray_index] = RAY_ACTIVE;
 
-	unsigned int my_sample;
-	unsigned int pixel_x;
-	unsigned int pixel_y;
-	unsigned int tile_x;
-	unsigned int tile_y;
-
-	unsigned int work_index = 0;
 	/* Get work. */
-	if(!get_next_work(kg, &work_index, ray_index)) {
+	uint work_index;
+	if(!get_next_work(kg, ray_index, &work_index)) {
 		/* No more work, mark ray as inactive */
 		kernel_split_state.ray_state[ray_index] = RAY_INACTIVE;
 
 		return;
 	}
 
-	/* Get the sample associated with the work. */
-	my_sample = get_work_sample(kg, work_index, ray_index) + kernel_split_params.start_sample;
-
-	/* Get pixel and tile position associated with the work. */
-	get_work_pixel_tile_position(kg, &pixel_x, &pixel_y,
-	                             &tile_x, &tile_y,
-	                             work_index,
-	                             ray_index);
-	kernel_split_state.work_array[ray_index] = work_index;
+	uint x, y, sample;
+	get_work_pixel(kg, work_index, &x, &y, &sample);
 
+	/* Remap rng_state and buffer to current pixel. */
 	ccl_global uint *rng_state = kernel_split_params.rng_state;
-	rng_state += kernel_split_params.offset + pixel_x + pixel_y*kernel_split_params.stride;
-
-	ccl_global float *buffer = kernel_split_params.buffer;
-	buffer += (kernel_split_params.offset + pixel_x + pixel_y * kernel_split_params.stride) * kernel_data.film.pass_stride;
+	rng_state += kernel_split_params.offset + x + y*kernel_split_params.stride;
 
-	RNG rng = kernel_split_state.rng[ray_index];
+	/* Store buffer offset for writing to passes. */
+	uint buffer_offset = (kernel_split_params.offset + x + y*kernel_split_params.stride) * kernel_data.film.pass_stride;
+	kernel_split_state.buffer_offset[ray_index] = buffer_offset;
 
 	/* Initialize random numbers and ray. */
+	uint rng_hash;
 	kernel_path_trace_setup(kg,
 	                        rng_state,
-	                        my_sample,
-	                        pixel_x, pixel_y,
-	                        &rng,
+	                        sample,
+	                        x, y,
+	                        &rng_hash,
 	                        &kernel_split_state.ray[ray_index]);
 
 	if(kernel_split_state.ray[ray_index].t != 0.0f) {
-		/* Initialize throughput, L_transparent, Ray, PathState;
+		/* Initialize throughput, path radiance, Ray, PathState;
 		 * These rays proceed with path-iteration.
 		 */
 		kernel_split_state.throughput[ray_index] = make_float3(1.0f, 1.0f, 1.0f);
-		kernel_split_state.L_transparent[ray_index] = 0.0f;
 		path_radiance_init(&kernel_split_state.path_radiance[ray_index], kernel_data.film.use_light_pass);
 		path_state_init(kg,
 		                &kernel_split_state.sd_DL_shadow[ray_index],
 		                &kernel_split_state.path_state[ray_index],
-		                &rng,
-		                my_sample,
+		                rng_hash,
+		                sample,
 		                &kernel_split_state.ray[ray_index]);
 #ifdef __SUBSURFACE__
 		kernel_path_subsurface_init_indirect(&kernel_split_state.ss_rays[ray_index]);
 #endif
-
-#ifdef __KERNEL_DEBUG__
-		debug_data_init(&kernel_split_state.debug_data[ray_index]);
-#endif
 	}
 	else {
 		/* These rays do not participate in path-iteration. */
 		float4 L_rad = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
 		/* Accumulate result in output buffer. */
-		kernel_write_pass_float4(buffer, my_sample, L_rad);
-		path_rng_end(kg, rng_state, kernel_split_state.rng[ray_index]);
+		ccl_global float *buffer = kernel_split_params.buffer + buffer_offset;
+		kernel_write_pass_float4(buffer, sample, L_rad);
 		ASSIGN_RAY_STATE(kernel_split_state.ray_state, ray_index, RAY_TO_REGENERATE);
 	}
-	kernel_split_state.rng[ray_index] = rng;
 }
 
 CCL_NAMESPACE_END
diff --git a/intern/cycles/kernel/split/kernel_scene_intersect.h b/intern/cycles/kernel/split/kernel_scene_intersect.h
index 45984ca509b..f5378bc172b 100644
--- a/intern/cycles/kernel/split/kernel_scene_intersect.h
+++ b/intern/cycles/kernel/split/kernel_scene_intersect.h
@@ -59,52 +59,14 @@ ccl_device void kernel_scene_intersect(KernelGlobals *kg)
 		return;
 	}
 
-#ifdef __KERNEL_DEBUG__
-	DebugData *debug_data = &kernel_split_state.debug_data[ray_index];
-#endif
-	Intersection isect;
-	PathState state = kernel_split_state.path_state[ray_index];
+	ccl_global PathState *state = &kernel_split_state.path_state[ray_index];
 	Ray ray = kernel_split_state.ray[ray_index];
+	PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
 
-	/* intersect scene */
-	uint visibility = path_state_ray_visibility(kg, &state);
-
-	if(state.bounce > kernel_data.integrator.ao_bounces) {
-		visibility = PATH_RAY_SHADOW;
-		ray.t = kernel_data.background.ao_distance;
-	}
-
-#ifdef __HAIR__
-	float difl = 0.0f, extmax = 0.0f;
-	uint lcg_state = 0;
-	RNG rng = kernel_split_state.rng[ray_index];
-
-	if(kernel_data.bvh.have_curves) {
-		if((kernel_data.cam.resolution == 1) && (state.flag & PATH_RAY_CAMERA)) {
-			float3 pixdiff = ray.dD.dx + ray.dD.dy;
-			/*pixdiff = pixdiff - dot(pixdiff, ray.D)*ray.D;*/
-			difl = kernel_data.curve.minimum_width * len(pixdiff) * 0.5f;
-		}
-
-		extmax = kernel_data.curve.maximum_width;
-		lcg_state = lcg_state_init(&rng, state.rng_offset, state.sample, 0x51633e2d);
-	}
-
-	bool hit = scene_intersect(kg, ray, visibility, &isect, &lcg_state, difl, extmax);
-#else
-	bool hit = scene_intersect(kg, ray, visibility, &isect, NULL, 0.0f, 0.0f);
-#endif
+	Intersection isect;
+	bool hit = kernel_path_scene_intersect(kg, state, &ray, &isect, L);
 	kernel_split_state.isect[ray_index] = isect;
 
-#ifdef __KERNEL_DEBUG__
-	if(state.flag & PATH_RAY_CAMERA) {
-		debug_data->num_bvh_traversed_nodes += isect.num_traversed_nodes;
-		debug_data->num_bvh_traversed_instances += isect.num_traversed_instances;
-		debug_data->num_bvh_intersections += isect.num_intersections;
-	}
-	debug_data->num_ray_bounces++;
-#endif
-
 	if(!hit) {
 		/* Change the state of rays that hit the background;
 		 * These rays undergo special processing in the
diff --git a/intern/cycles/kernel/split/kernel_shader_eval.h b/intern/cycles/kernel/split/kernel_shader_eval.h
index 2801b32f285..7032461b04a 100644
--- a/intern/cycles/kernel/split/kernel_shader_eval.h
+++ b/intern/cycles/kernel/split/kernel_shader_eval.h
@@ -48,30 +48,18 @@ ccl_device void kernel_shader_eval(KernelGlobals *kg)
 
 	ccl_global char *ray_state = kernel_split_state.ray_state;
 	if(IS_STATE(ray_state, ray_index, RAY_ACTIVE)) {
-		RNG rng = kernel_split_state.rng[ray_index];
 		ccl_global PathState *state = &kernel_split_state.path_state[ray_index];
 
-#ifndef __BRANCHED_PATH__
-		float rbsdf = path_state_rng_1D_for_decision(kg, &rng, state, PRNG_BSDF);
-		shader_eval_surface(kg, &kernel_split_state.sd[ray_index], &rng, state, rbsdf, state->flag, SHADER_CONTEXT_MAIN);
-#else
-		ShaderContext ctx = SHADER_CONTEXT_MAIN;
-		float rbsdf = 0.0f;
-
-		if(!kernel_data.integrator.branched || IS_FLAG(ray_state, ray_index, RAY_BRANCHED_INDIRECT)) {
-			rbsdf = path_state_rng_1D_for_decision(kg, &rng, state, PRNG_BSDF);
-
+		shader_eval_surface(kg, &kernel_split_state.sd[ray_index], state, state->flag);
+#ifdef __BRANCHED_PATH__
+		if(kernel_data.integrator.branched) {
+			shader_merge_closures(&kernel_split_state.sd[ray_index]);
 		}
-
-		if(IS_FLAG(ray_state, ray_index, RAY_BRANCHED_INDIRECT)) {
-			ctx = SHADER_CONTEXT_INDIRECT;
+		else
+#endif
+		{
+			shader_prepare_closures(&kernel_split_state.sd[ray_index], state);
 		}
-
-		shader_eval_surface(kg, &kernel_split_state.sd[ray_index], &rng, state, rbsdf, state->flag, ctx);
-		shader_merge_closures(&kernel_split_state.sd[ray_index]);
-#endif  /* __BRANCHED_PATH__ */
-
-		kernel_split_state.rng[ray_index] = rng;
 	}
 }
 
diff --git a/intern/cycles/kernel/split/kernel_shader_sort.h b/intern/cycles/kernel/split/kernel_shader_sort.h
index 297decb0bc2..5a55b680695 100644
--- a/intern/cycles/kernel/split/kernel_shader_sort.h
+++ b/intern/cycles/kernel/split/kernel_shader_sort.h
@@ -39,7 +39,7 @@ ccl_device void kernel_shader_sort(KernelGlobals *kg,
 	ccl_local ushort *local_index = &locals->local_index[0];
 
 	/* copy to local memory */
-	for (uint i = 0; i < SHADER_SORT_BLOCK_SIZE; i += SHADER_SORT_LOCAL_SIZE) {
+	for(uint i = 0; i < SHADER_SORT_BLOCK_SIZE; i += SHADER_SORT_LOCAL_SIZE) {
 		uint idx = offset + i + lid;
 		uint add = input + idx;
 		uint value = (~0);
@@ -59,9 +59,9 @@ ccl_device void kernel_shader_sort(KernelGlobals *kg,
 #  ifdef __KERNEL_OPENCL__
 
 	/* bitonic sort */
-	for (uint length = 1; length < SHADER_SORT_BLOCK_SIZE; length <<= 1) {
-		for (uint inc = length; inc > 0; inc >>= 1) {
-			for (uint ii = 0; ii < SHADER_SORT_BLOCK_SIZE; ii += SHADER_SORT_LOCAL_SIZE) {
+	for(uint length = 1; length < SHADER_SORT_BLOCK_SIZE; length <<= 1) {
+		for(uint inc = length; inc > 0; inc >>= 1) {
+			for(uint ii = 0; ii < SHADER_SORT_BLOCK_SIZE; ii += SHADER_SORT_LOCAL_SIZE) {
 				uint i = lid + ii;
 				bool direction = ((i & (length << 1)) != 0);
 				uint j = i ^ inc;
@@ -81,7 +81,7 @@ ccl_device void kernel_shader_sort(KernelGlobals *kg,
 #  endif /* __KERNEL_OPENCL__ */
 
 	/* copy to destination */
-	for (uint i = 0; i < SHADER_SORT_BLOCK_SIZE; i += SHADER_SORT_LOCAL_SIZE) {
+	for(uint i = 0; i < SHADER_SORT_BLOCK_SIZE; i += SHADER_SORT_LOCAL_SIZE) {
 		uint idx = offset + i + lid;
 		uint lidx = local_index[i + lid];
 		uint outi = output + idx;
diff --git a/intern/cycles/kernel/split/kernel_shadow_blocked_ao.h b/intern/cycles/kernel/split/kernel_shadow_blocked_ao.h
index 474286285a9..79aa2c9435b 100644
--- a/intern/cycles/kernel/split/kernel_shadow_blocked_ao.h
+++ b/intern/cycles/kernel/split/kernel_shadow_blocked_ao.h
@@ -37,21 +37,18 @@ ccl_device void kernel_shadow_blocked_ao(KernelGlobals *kg)
 	ShaderData *emission_sd = &kernel_split_state.sd_DL_shadow[ray_index];
 	PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
 	ccl_global PathState *state = &kernel_split_state.path_state[ray_index];
-	RNG rng = kernel_split_state.rng[ray_index];
 	float3 throughput = kernel_split_state.throughput[ray_index];
 
 #ifdef __BRANCHED_PATH__
 	if(!kernel_data.integrator.branched || IS_FLAG(kernel_split_state.ray_state, ray_index, RAY_BRANCHED_INDIRECT)) {
 #endif
-		kernel_path_ao(kg, sd, emission_sd, L, state, &rng, throughput, shader_bsdf_alpha(kg, sd));
+		kernel_path_ao(kg, sd, emission_sd, L, state, throughput, shader_bsdf_alpha(kg, sd));
 #ifdef __BRANCHED_PATH__
 	}
 	else {
-		kernel_branched_path_ao(kg, sd, emission_sd, L, state, &rng, throughput);
+		kernel_branched_path_ao(kg, sd, emission_sd, L, state, throughput);
 	}
 #endif
-
-	kernel_split_state.rng[ray_index] = rng;
 }
 
 CCL_NAMESPACE_END
diff --git a/intern/cycles/kernel/split/kernel_shadow_blocked_dl.h b/intern/cycles/kernel/split/kernel_shadow_blocked_dl.h
index 78e61709b01..b52f9a5eb81 100644
--- a/intern/cycles/kernel/split/kernel_shadow_blocked_dl.h
+++ b/intern/cycles/kernel/split/kernel_shadow_blocked_dl.h
@@ -45,7 +45,6 @@ ccl_device void kernel_shadow_blocked_dl(KernelGlobals *kg)
 	PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
 	ShaderData *sd = &kernel_split_state.sd[ray_index];
 	float3 throughput = kernel_split_state.throughput[ray_index];
-	RNG rng = kernel_split_state.rng[ray_index];
 
 	BsdfEval L_light = kernel_split_state.bsdf_eval[ray_index];
 	ShaderData *emission_sd = &kernel_split_state.sd_DL_shadow[ray_index];
@@ -75,7 +74,6 @@ ccl_device void kernel_shadow_blocked_dl(KernelGlobals *kg)
 
 	if(use_branched) {
 		kernel_branched_path_surface_connect_light(kg,
-		                                           &rng,
 		                                           sd,
 		                                           emission_sd,
 		                                           state,
@@ -91,10 +89,11 @@ ccl_device void kernel_shadow_blocked_dl(KernelGlobals *kg)
 		float3 shadow;
 
 		if(!shadow_blocked(kg,
-			               emission_sd,
-			               state,
-			               &ray,
-			               &shadow))
+		                   sd,
+		                   emission_sd,
+		                   state,
+		                   &ray,
+		                   &shadow))
 		{
 			/* accumulate */
 			path_radiance_accum_light(L, state, throughput, &L_light, shadow, 1.0f, is_lamp);
@@ -103,8 +102,6 @@ ccl_device void kernel_shadow_blocked_dl(KernelGlobals *kg)
 			path_radiance_accum_total_light(L, state, throughput, &L_light);
 		}
 	}
-
-	kernel_split_state.rng[ray_index] = rng;
 }
 
 CCL_NAMESPACE_END
diff --git a/intern/cycles/kernel/split/kernel_split_common.h b/intern/cycles/kernel/split/kernel_split_common.h
index 08f0124b529..558d327bc76 100644
--- a/intern/cycles/kernel/split/kernel_split_common.h
+++ b/intern/cycles/kernel/split/kernel_split_common.h
@@ -63,7 +63,7 @@ ccl_device_inline void kernel_split_path_end(KernelGlobals *kg, int ray_index)
 		PathRadiance *orig_ray_L = &kernel_split_state.path_radiance[orig_ray];
 
 		path_radiance_sum_indirect(L);
-		path_radiance_accum_sample(orig_ray_L, L, 1);
+		path_radiance_accum_sample(orig_ray_L, L);
 
 		atomic_fetch_and_dec_uint32((ccl_global uint*)&kernel_split_state.branched_state[orig_ray].shared_sample_count);
 
diff --git a/intern/cycles/kernel/split/kernel_split_data_types.h b/intern/cycles/kernel/split/kernel_split_data_types.h
index 4bb2f0d3d80..c58c8463f5c 100644
--- a/intern/cycles/kernel/split/kernel_split_data_types.h
+++ b/intern/cycles/kernel/split/kernel_split_data_types.h
@@ -56,14 +56,6 @@ typedef struct SplitParams {
 
 /* SPLIT_DATA_ENTRY(type, name, num) */
 
-#if defined(WITH_CYCLES_DEBUG) || defined(__KERNEL_DEBUG__)
-/* DebugData memory */
-#  define SPLIT_DATA_DEBUG_ENTRIES \
-	SPLIT_DATA_ENTRY(DebugData, debug_data, 1)
-#else
-#  define SPLIT_DATA_DEBUG_ENTRIES
-#endif  /* DEBUG */
-
 #ifdef __BRANCHED_PATH__
 
 typedef ccl_global struct SplitBranchedState {
@@ -80,7 +72,6 @@ typedef ccl_global struct SplitBranchedState {
 	/* indirect loop state */
 	int next_closure;
 	int next_sample;
-	int num_samples;
 
 #ifdef __SUBSURFACE__
 	int ss_next_closure;
@@ -122,9 +113,7 @@ typedef ccl_global struct SplitBranchedState {
 #endif /* __VOLUME__ */
 
 #define SPLIT_DATA_ENTRIES \
-	SPLIT_DATA_ENTRY(ccl_global RNG, rng, 1) \
 	SPLIT_DATA_ENTRY(ccl_global float3, throughput, 1) \
-	SPLIT_DATA_ENTRY(ccl_global float, L_transparent, 1) \
 	SPLIT_DATA_ENTRY(PathRadiance, path_radiance, 1) \
 	SPLIT_DATA_ENTRY(ccl_global Ray, ray, 1) \
 	SPLIT_DATA_ENTRY(ccl_global PathState, path_state, 1) \
@@ -133,19 +122,16 @@ typedef ccl_global struct SplitBranchedState {
 	SPLIT_DATA_ENTRY(ccl_global int, is_lamp, 1) \
 	SPLIT_DATA_ENTRY(ccl_global Ray, light_ray, 1) \
 	SPLIT_DATA_ENTRY(ccl_global int, queue_data, (NUM_QUEUES*2)) /* TODO(mai): this is too large? */ \
-	SPLIT_DATA_ENTRY(ccl_global uint, work_array, 1) \
+	SPLIT_DATA_ENTRY(ccl_global uint, buffer_offset, 1) \
 	SPLIT_DATA_ENTRY(ShaderData, sd, 1) \
 	SPLIT_DATA_ENTRY(ShaderData, sd_DL_shadow, 1) \
 	SPLIT_DATA_SUBSURFACE_ENTRIES \
 	SPLIT_DATA_VOLUME_ENTRIES \
 	SPLIT_DATA_BRANCHED_ENTRIES \
-	SPLIT_DATA_DEBUG_ENTRIES \
 
 /* entries to be copied to inactive rays when sharing branched samples (TODO: which are actually needed?) */
 #define SPLIT_DATA_ENTRIES_BRANCHED_SHARED \
-	SPLIT_DATA_ENTRY(ccl_global RNG, rng, 1) \
 	SPLIT_DATA_ENTRY(ccl_global float3, throughput, 1) \
-	SPLIT_DATA_ENTRY(ccl_global float, L_transparent, 1) \
 	SPLIT_DATA_ENTRY(PathRadiance, path_radiance, 1) \
 	SPLIT_DATA_ENTRY(ccl_global Ray, ray, 1) \
 	SPLIT_DATA_ENTRY(ccl_global PathState, path_state, 1) \
@@ -158,7 +144,6 @@ typedef ccl_global struct SplitBranchedState {
 	SPLIT_DATA_SUBSURFACE_ENTRIES \
 	SPLIT_DATA_VOLUME_ENTRIES \
 	SPLIT_DATA_BRANCHED_ENTRIES \
-	SPLIT_DATA_DEBUG_ENTRIES \
 
 /* struct that holds pointers to data in the shared state buffer */
 typedef struct SplitData {
diff --git a/intern/cycles/kernel/split/kernel_subsurface_scatter.h b/intern/cycles/kernel/split/kernel_subsurface_scatter.h
index d5083b23f80..3b957856aea 100644
--- a/intern/cycles/kernel/split/kernel_subsurface_scatter.h
+++ b/intern/cycles/kernel/split/kernel_subsurface_scatter.h
@@ -38,7 +38,6 @@ ccl_device_noinline bool kernel_split_branched_path_subsurface_indirect_light_it
 	SplitBranchedState *branched_state = &kernel_split_state.branched_state[ray_index];
 
 	ShaderData *sd = &branched_state->sd;
-	RNG rng = kernel_split_state.rng[ray_index];
 	PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
 	ShaderData *emission_sd = &kernel_split_state.sd_DL_shadow[ray_index];
 
@@ -52,14 +51,12 @@ ccl_device_noinline bool kernel_split_branched_path_subsurface_indirect_light_it
 		if(branched_state->ss_next_sample == 0 && branched_state->next_hit == 0 &&
 		   branched_state->next_closure == 0 && branched_state->next_sample == 0)
 		{
-			branched_state->lcg_state = lcg_state_init(&rng,
-			                                           branched_state->path_state.rng_offset,
-			                                           branched_state->path_state.sample,
-			                                           0x68bc21eb);
+			branched_state->lcg_state = lcg_state_init_addrspace(&branched_state->path_state,
+			                                                     0x68bc21eb);
 		}
 		int num_samples = kernel_data.integrator.subsurface_samples;
 		float num_samples_inv = 1.0f/num_samples;
-		RNG bssrdf_rng = cmj_hash(rng, i);
+		uint bssrdf_rng_hash = cmj_hash(branched_state->path_state.rng_hash, i);
 
 		/* do subsurface scatter step with copy of shader data, this will
 		 * replace the BSSRDF with a diffuse BSDF closure */
@@ -67,7 +64,7 @@ ccl_device_noinline bool kernel_split_branched_path_subsurface_indirect_light_it
 			ccl_global SubsurfaceIntersection *ss_isect = &branched_state->ss_isect;
 			float bssrdf_u, bssrdf_v;
 			path_branched_rng_2D(kg,
-			                     &bssrdf_rng,
+			                     bssrdf_rng_hash,
 			                     &branched_state->path_state,
 			                     j,
 			                     num_samples,
@@ -77,7 +74,7 @@ ccl_device_noinline bool kernel_split_branched_path_subsurface_indirect_light_it
 
 			/* intersection is expensive so avoid doing multiple times for the same input */
 			if(branched_state->next_hit == 0 && branched_state->next_closure == 0 && branched_state->next_sample == 0) {
-				RNG lcg_state = branched_state->lcg_state;
+				uint lcg_state = branched_state->lcg_state;
 				SubsurfaceIntersection ss_isect_private;
 
 				branched_state->num_hits = subsurface_scatter_multi_intersect(kg,
@@ -152,7 +149,6 @@ ccl_device_noinline bool kernel_split_branched_path_subsurface_indirect_light_it
 						int all = (kernel_data.integrator.sample_all_lights_direct) ||
 							      (branched_state->path_state.flag & PATH_RAY_SHADOW_CATCHER);
 						kernel_branched_path_surface_connect_light(kg,
-						                                           &rng,
 						                                           bssrdf_sd,
 						                                           emission_sd,
 						                                           hit_state,
@@ -229,7 +225,6 @@ ccl_device void kernel_subsurface_scatter(KernelGlobals *kg)
 	if(IS_STATE(ray_state, ray_index, RAY_ACTIVE)) {
 		ccl_global PathState *state = &kernel_split_state.path_state[ray_index];
 		PathRadiance *L = &kernel_split_state.path_radiance[ray_index];
-		RNG rng = kernel_split_state.rng[ray_index];
 		ccl_global Ray *ray = &kernel_split_state.ray[ray_index];
 		ccl_global float3 *throughput = &kernel_split_state.throughput[ray_index];
 		ccl_global SubsurfaceIndirectRays *ss_indirect = &kernel_split_state.ss_rays[ray_index];
@@ -246,7 +241,6 @@ ccl_device void kernel_subsurface_scatter(KernelGlobals *kg)
 				                                  emission_sd,
 				                                  L,
 				                                  state,
-				                                  &rng,
 				                                  ray,
 				                                  throughput,
 				                                  ss_indirect))
@@ -256,21 +250,17 @@ ccl_device void kernel_subsurface_scatter(KernelGlobals *kg)
 #ifdef __BRANCHED_PATH__
 			}
 			else if(IS_FLAG(ray_state, ray_index, RAY_BRANCHED_INDIRECT)) {
-				float bssrdf_probability;
-				ShaderClosure *sc = subsurface_scatter_pick_closure(kg, sd, &bssrdf_probability);
+				float bssrdf_u, bssrdf_v;
+				path_state_rng_2D(kg,
+				                  state,
+				                  PRNG_BSDF_U,
+				                  &bssrdf_u, &bssrdf_v);
 
-				/* modify throughput for picking bssrdf or bsdf */
-				*throughput *= bssrdf_probability;
+				const ShaderClosure *sc = shader_bssrdf_pick(sd, throughput, &bssrdf_u);
 
 				/* do bssrdf scatter step if we picked a bssrdf closure */
 				if(sc) {
-					uint lcg_state = lcg_state_init(&rng, state->rng_offset, state->sample, 0x68bc21eb);
-					float bssrdf_u, bssrdf_v;
-					path_state_rng_2D(kg,
-					                  &rng,
-					                  state,
-					                  PRNG_BSDF_U,
-					                  &bssrdf_u, &bssrdf_v);
+					uint lcg_state = lcg_state_init_addrspace(state, 0x68bc21eb);
 					subsurface_scatter_step(kg,
 					                        sd,
 					                        state,
@@ -290,7 +280,6 @@ ccl_device void kernel_subsurface_scatter(KernelGlobals *kg)
 			}
 #endif
 		}
-		kernel_split_state.rng[ray_index] = rng;
 	}
 
 #  ifdef __BRANCHED_PATH__
diff --git a/intern/cycles/kernel/svm/svm_closure.h b/intern/cycles/kernel/svm/svm_closure.h
index 7704aa545c8..4268813b263 100644
--- a/intern/cycles/kernel/svm/svm_closure.h
+++ b/intern/cycles/kernel/svm/svm_closure.h
@@ -280,8 +280,8 @@ ccl_device void svm_node_closure_bsdf(KernelGlobals *kg, ShaderData *sd, float *
 						float aspect = safe_sqrtf(1.0f - anisotropic * 0.9f);
 						float r2 = roughness * roughness;
 
-						bsdf->alpha_x = fmaxf(0.001f, r2 / aspect);
-						bsdf->alpha_y = fmaxf(0.001f, r2 * aspect);
+						bsdf->alpha_x = r2 / aspect;
+						bsdf->alpha_y = r2 * aspect;
 
 						float m_cdlum = 0.3f * base_color.x + 0.6f * base_color.y + 0.1f * base_color.z; // luminance approx.
 						float3 m_ctint = m_cdlum > 0.0f ? base_color / m_cdlum : make_float3(0.0f, 0.0f, 0.0f); // normalize lum. to isolate hue+sat
diff --git a/intern/cycles/kernel/svm/svm_image.h b/intern/cycles/kernel/svm/svm_image.h
index 8e45dbfa5ff..6d6e92e73f6 100644
--- a/intern/cycles/kernel/svm/svm_image.h
+++ b/intern/cycles/kernel/svm/svm_image.h
@@ -16,19 +16,6 @@
 
 CCL_NAMESPACE_BEGIN
 
-/* Float4 textures on various devices. */
-#if defined(__KERNEL_CPU__)
-#  define TEX_NUM_FLOAT4_IMAGES		TEX_NUM_FLOAT4_CPU
-#elif defined(__KERNEL_CUDA__)
-#  if __CUDA_ARCH__ < 300
-#    define TEX_NUM_FLOAT4_IMAGES	TEX_NUM_FLOAT4_CUDA
-#  else
-#    define TEX_NUM_FLOAT4_IMAGES	TEX_NUM_FLOAT4_CUDA_KEPLER
-#  endif
-#else
-#  define TEX_NUM_FLOAT4_IMAGES	TEX_NUM_FLOAT4_OPENCL
-#endif
-
 ccl_device float4 svm_image_texture(KernelGlobals *kg, int id, float x, float y, uint srgb, uint use_alpha)
 {
 #ifdef __KERNEL_CPU__
@@ -50,94 +37,94 @@ ccl_device float4 svm_image_texture(KernelGlobals *kg, int id, float x, float y,
 
 	switch(id) {
 		case 0: r = kernel_tex_image_interp(__tex_image_float4_000, x, y); break;
-		case 1: r = kernel_tex_image_interp(__tex_image_float4_001, x, y); break;
-		case 2: r = kernel_tex_image_interp(__tex_image_float4_002, x, y); break;
-		case 3: r = kernel_tex_image_interp(__tex_image_float4_003, x, y); break;
-		case 4: r = kernel_tex_image_interp(__tex_image_float4_004, x, y); break;
-		case 5: r = kernel_tex_image_interp(__tex_image_byte4_005, x, y); break;
-		case 6: r = kernel_tex_image_interp(__tex_image_byte4_006, x, y); break;
-		case 7: r = kernel_tex_image_interp(__tex_image_byte4_007, x, y); break;
-		case 8: r = kernel_tex_image_interp(__tex_image_byte4_008, x, y); break;
+		case 8: r = kernel_tex_image_interp(__tex_image_float4_008, x, y); break;
+		case 16: r = kernel_tex_image_interp(__tex_image_float4_016, x, y); break;
+		case 24: r = kernel_tex_image_interp(__tex_image_float4_024, x, y); break;
+		case 32: r = kernel_tex_image_interp(__tex_image_float4_032, x, y); break;
+		case 1: r = kernel_tex_image_interp(__tex_image_byte4_001, x, y); break;
 		case 9: r = kernel_tex_image_interp(__tex_image_byte4_009, x, y); break;
-		case 10: r = kernel_tex_image_interp(__tex_image_byte4_010, x, y); break;
-		case 11: r = kernel_tex_image_interp(__tex_image_byte4_011, x, y); break;
-		case 12: r = kernel_tex_image_interp(__tex_image_byte4_012, x, y); break;
-		case 13: r = kernel_tex_image_interp(__tex_image_byte4_013, x, y); break;
-		case 14: r = kernel_tex_image_interp(__tex_image_byte4_014, x, y); break;
-		case 15: r = kernel_tex_image_interp(__tex_image_byte4_015, x, y); break;
-		case 16: r = kernel_tex_image_interp(__tex_image_byte4_016, x, y); break;
 		case 17: r = kernel_tex_image_interp(__tex_image_byte4_017, x, y); break;
-		case 18: r = kernel_tex_image_interp(__tex_image_byte4_018, x, y); break;
-		case 19: r = kernel_tex_image_interp(__tex_image_byte4_019, x, y); break;
-		case 20: r = kernel_tex_image_interp(__tex_image_byte4_020, x, y); break;
-		case 21: r = kernel_tex_image_interp(__tex_image_byte4_021, x, y); break;
-		case 22: r = kernel_tex_image_interp(__tex_image_byte4_022, x, y); break;
-		case 23: r = kernel_tex_image_interp(__tex_image_byte4_023, x, y); break;
-		case 24: r = kernel_tex_image_interp(__tex_image_byte4_024, x, y); break;
 		case 25: r = kernel_tex_image_interp(__tex_image_byte4_025, x, y); break;
-		case 26: r = kernel_tex_image_interp(__tex_image_byte4_026, x, y); break;
-		case 27: r = kernel_tex_image_interp(__tex_image_byte4_027, x, y); break;
-		case 28: r = kernel_tex_image_interp(__tex_image_byte4_028, x, y); break;
-		case 29: r = kernel_tex_image_interp(__tex_image_byte4_029, x, y); break;
-		case 30: r = kernel_tex_image_interp(__tex_image_byte4_030, x, y); break;
-		case 31: r = kernel_tex_image_interp(__tex_image_byte4_031, x, y); break;
-		case 32: r = kernel_tex_image_interp(__tex_image_byte4_032, x, y); break;
 		case 33: r = kernel_tex_image_interp(__tex_image_byte4_033, x, y); break;
-		case 34: r = kernel_tex_image_interp(__tex_image_byte4_034, x, y); break;
-		case 35: r = kernel_tex_image_interp(__tex_image_byte4_035, x, y); break;
-		case 36: r = kernel_tex_image_interp(__tex_image_byte4_036, x, y); break;
-		case 37: r = kernel_tex_image_interp(__tex_image_byte4_037, x, y); break;
-		case 38: r = kernel_tex_image_interp(__tex_image_byte4_038, x, y); break;
-		case 39: r = kernel_tex_image_interp(__tex_image_byte4_039, x, y); break;
-		case 40: r = kernel_tex_image_interp(__tex_image_byte4_040, x, y); break;
 		case 41: r = kernel_tex_image_interp(__tex_image_byte4_041, x, y); break;
-		case 42: r = kernel_tex_image_interp(__tex_image_byte4_042, x, y); break;
-		case 43: r = kernel_tex_image_interp(__tex_image_byte4_043, x, y); break;
-		case 44: r = kernel_tex_image_interp(__tex_image_byte4_044, x, y); break;
-		case 45: r = kernel_tex_image_interp(__tex_image_byte4_045, x, y); break;
-		case 46: r = kernel_tex_image_interp(__tex_image_byte4_046, x, y); break;
-		case 47: r = kernel_tex_image_interp(__tex_image_byte4_047, x, y); break;
-		case 48: r = kernel_tex_image_interp(__tex_image_byte4_048, x, y); break;
 		case 49: r = kernel_tex_image_interp(__tex_image_byte4_049, x, y); break;
-		case 50: r = kernel_tex_image_interp(__tex_image_byte4_050, x, y); break;
-		case 51: r = kernel_tex_image_interp(__tex_image_byte4_051, x, y); break;
-		case 52: r = kernel_tex_image_interp(__tex_image_byte4_052, x, y); break;
-		case 53: r = kernel_tex_image_interp(__tex_image_byte4_053, x, y); break;
-		case 54: r = kernel_tex_image_interp(__tex_image_byte4_054, x, y); break;
-		case 55: r = kernel_tex_image_interp(__tex_image_byte4_055, x, y); break;
-		case 56: r = kernel_tex_image_interp(__tex_image_byte4_056, x, y); break;
 		case 57: r = kernel_tex_image_interp(__tex_image_byte4_057, x, y); break;
-		case 58: r = kernel_tex_image_interp(__tex_image_byte4_058, x, y); break;
-		case 59: r = kernel_tex_image_interp(__tex_image_byte4_059, x, y); break;
-		case 60: r = kernel_tex_image_interp(__tex_image_byte4_060, x, y); break;
-		case 61: r = kernel_tex_image_interp(__tex_image_byte4_061, x, y); break;
-		case 62: r = kernel_tex_image_interp(__tex_image_byte4_062, x, y); break;
-		case 63: r = kernel_tex_image_interp(__tex_image_byte4_063, x, y); break;
-		case 64: r = kernel_tex_image_interp(__tex_image_byte4_064, x, y); break;
 		case 65: r = kernel_tex_image_interp(__tex_image_byte4_065, x, y); break;
-		case 66: r = kernel_tex_image_interp(__tex_image_byte4_066, x, y); break;
-		case 67: r = kernel_tex_image_interp(__tex_image_byte4_067, x, y); break;
-		case 68: r = kernel_tex_image_interp(__tex_image_byte4_068, x, y); break;
-		case 69: r = kernel_tex_image_interp(__tex_image_byte4_069, x, y); break;
-		case 70: r = kernel_tex_image_interp(__tex_image_byte4_070, x, y); break;
-		case 71: r = kernel_tex_image_interp(__tex_image_byte4_071, x, y); break;
-		case 72: r = kernel_tex_image_interp(__tex_image_byte4_072, x, y); break;
 		case 73: r = kernel_tex_image_interp(__tex_image_byte4_073, x, y); break;
-		case 74: r = kernel_tex_image_interp(__tex_image_byte4_074, x, y); break;
-		case 75: r = kernel_tex_image_interp(__tex_image_byte4_075, x, y); break;
-		case 76: r = kernel_tex_image_interp(__tex_image_byte4_076, x, y); break;
-		case 77: r = kernel_tex_image_interp(__tex_image_byte4_077, x, y); break;
-		case 78: r = kernel_tex_image_interp(__tex_image_byte4_078, x, y); break;
-		case 79: r = kernel_tex_image_interp(__tex_image_byte4_079, x, y); break;
-		case 80: r = kernel_tex_image_interp(__tex_image_byte4_080, x, y); break;
 		case 81: r = kernel_tex_image_interp(__tex_image_byte4_081, x, y); break;
-		case 82: r = kernel_tex_image_interp(__tex_image_byte4_082, x, y); break;
-		case 83: r = kernel_tex_image_interp(__tex_image_byte4_083, x, y); break;
-		case 84: r = kernel_tex_image_interp(__tex_image_byte4_084, x, y); break;
-		case 85: r = kernel_tex_image_interp(__tex_image_byte4_085, x, y); break;
-		case 86: r = kernel_tex_image_interp(__tex_image_byte4_086, x, y); break;
-		case 87: r = kernel_tex_image_interp(__tex_image_byte4_087, x, y); break;
-		case 88: r = kernel_tex_image_interp(__tex_image_byte4_088, x, y); break;
+		case 89: r = kernel_tex_image_interp(__tex_image_byte4_089, x, y); break;
+		case 97: r = kernel_tex_image_interp(__tex_image_byte4_097, x, y); break;
+		case 105: r = kernel_tex_image_interp(__tex_image_byte4_105, x, y); break;
+		case 113: r = kernel_tex_image_interp(__tex_image_byte4_113, x, y); break;
+		case 121: r = kernel_tex_image_interp(__tex_image_byte4_121, x, y); break;
+		case 129: r = kernel_tex_image_interp(__tex_image_byte4_129, x, y); break;
+		case 137: r = kernel_tex_image_interp(__tex_image_byte4_137, x, y); break;
+		case 145: r = kernel_tex_image_interp(__tex_image_byte4_145, x, y); break;
+		case 153: r = kernel_tex_image_interp(__tex_image_byte4_153, x, y); break;
+		case 161: r = kernel_tex_image_interp(__tex_image_byte4_161, x, y); break;
+		case 169: r = kernel_tex_image_interp(__tex_image_byte4_169, x, y); break;
+		case 177: r = kernel_tex_image_interp(__tex_image_byte4_177, x, y); break;
+		case 185: r = kernel_tex_image_interp(__tex_image_byte4_185, x, y); break;
+		case 193: r = kernel_tex_image_interp(__tex_image_byte4_193, x, y); break;
+		case 201: r = kernel_tex_image_interp(__tex_image_byte4_201, x, y); break;
+		case 209: r = kernel_tex_image_interp(__tex_image_byte4_209, x, y); break;
+		case 217: r = kernel_tex_image_interp(__tex_image_byte4_217, x, y); break;
+		case 225: r = kernel_tex_image_interp(__tex_image_byte4_225, x, y); break;
+		case 233: r = kernel_tex_image_interp(__tex_image_byte4_233, x, y); break;
+		case 241: r = kernel_tex_image_interp(__tex_image_byte4_241, x, y); break;
+		case 249: r = kernel_tex_image_interp(__tex_image_byte4_249, x, y); break;
+		case 257: r = kernel_tex_image_interp(__tex_image_byte4_257, x, y); break;
+		case 265: r = kernel_tex_image_interp(__tex_image_byte4_265, x, y); break;
+		case 273: r = kernel_tex_image_interp(__tex_image_byte4_273, x, y); break;
+		case 281: r = kernel_tex_image_interp(__tex_image_byte4_281, x, y); break;
+		case 289: r = kernel_tex_image_interp(__tex_image_byte4_289, x, y); break;
+		case 297: r = kernel_tex_image_interp(__tex_image_byte4_297, x, y); break;
+		case 305: r = kernel_tex_image_interp(__tex_image_byte4_305, x, y); break;
+		case 313: r = kernel_tex_image_interp(__tex_image_byte4_313, x, y); break;
+		case 321: r = kernel_tex_image_interp(__tex_image_byte4_321, x, y); break;
+		case 329: r = kernel_tex_image_interp(__tex_image_byte4_329, x, y); break;
+		case 337: r = kernel_tex_image_interp(__tex_image_byte4_337, x, y); break;
+		case 345: r = kernel_tex_image_interp(__tex_image_byte4_345, x, y); break;
+		case 353: r = kernel_tex_image_interp(__tex_image_byte4_353, x, y); break;
+		case 361: r = kernel_tex_image_interp(__tex_image_byte4_361, x, y); break;
+		case 369: r = kernel_tex_image_interp(__tex_image_byte4_369, x, y); break;
+		case 377: r = kernel_tex_image_interp(__tex_image_byte4_377, x, y); break;
+		case 385: r = kernel_tex_image_interp(__tex_image_byte4_385, x, y); break;
+		case 393: r = kernel_tex_image_interp(__tex_image_byte4_393, x, y); break;
+		case 401: r = kernel_tex_image_interp(__tex_image_byte4_401, x, y); break;
+		case 409: r = kernel_tex_image_interp(__tex_image_byte4_409, x, y); break;
+		case 417: r = kernel_tex_image_interp(__tex_image_byte4_417, x, y); break;
+		case 425: r = kernel_tex_image_interp(__tex_image_byte4_425, x, y); break;
+		case 433: r = kernel_tex_image_interp(__tex_image_byte4_433, x, y); break;
+		case 441: r = kernel_tex_image_interp(__tex_image_byte4_441, x, y); break;
+		case 449: r = kernel_tex_image_interp(__tex_image_byte4_449, x, y); break;
+		case 457: r = kernel_tex_image_interp(__tex_image_byte4_457, x, y); break;
+		case 465: r = kernel_tex_image_interp(__tex_image_byte4_465, x, y); break;
+		case 473: r = kernel_tex_image_interp(__tex_image_byte4_473, x, y); break;
+		case 481: r = kernel_tex_image_interp(__tex_image_byte4_481, x, y); break;
+		case 489: r = kernel_tex_image_interp(__tex_image_byte4_489, x, y); break;
+		case 497: r = kernel_tex_image_interp(__tex_image_byte4_497, x, y); break;
+		case 505: r = kernel_tex_image_interp(__tex_image_byte4_505, x, y); break;
+		case 513: r = kernel_tex_image_interp(__tex_image_byte4_513, x, y); break;
+		case 521: r = kernel_tex_image_interp(__tex_image_byte4_521, x, y); break;
+		case 529: r = kernel_tex_image_interp(__tex_image_byte4_529, x, y); break;
+		case 537: r = kernel_tex_image_interp(__tex_image_byte4_537, x, y); break;
+		case 545: r = kernel_tex_image_interp(__tex_image_byte4_545, x, y); break;
+		case 553: r = kernel_tex_image_interp(__tex_image_byte4_553, x, y); break;
+		case 561: r = kernel_tex_image_interp(__tex_image_byte4_561, x, y); break;
+		case 569: r = kernel_tex_image_interp(__tex_image_byte4_569, x, y); break;
+		case 577: r = kernel_tex_image_interp(__tex_image_byte4_577, x, y); break;
+		case 585: r = kernel_tex_image_interp(__tex_image_byte4_585, x, y); break;
+		case 593: r = kernel_tex_image_interp(__tex_image_byte4_593, x, y); break;
+		case 601: r = kernel_tex_image_interp(__tex_image_byte4_601, x, y); break;
+		case 609: r = kernel_tex_image_interp(__tex_image_byte4_609, x, y); break;
+		case 617: r = kernel_tex_image_interp(__tex_image_byte4_617, x, y); break;
+		case 625: r = kernel_tex_image_interp(__tex_image_byte4_625, x, y); break;
+		case 633: r = kernel_tex_image_interp(__tex_image_byte4_633, x, y); break;
+		case 641: r = kernel_tex_image_interp(__tex_image_byte4_641, x, y); break;
+		case 649: r = kernel_tex_image_interp(__tex_image_byte4_649, x, y); break;
+		case 657: r = kernel_tex_image_interp(__tex_image_byte4_657, x, y); break;
+		case 665: r = kernel_tex_image_interp(__tex_image_byte4_665, x, y); break;
 		default:
 			kernel_assert(0);
 			return make_float4(0.0f, 0.0f, 0.0f, 0.0f);
@@ -224,6 +211,8 @@ ccl_device void svm_node_tex_image_box(KernelGlobals *kg, ShaderData *sd, float
 	object_inverse_normal_transform(kg, sd, &N);
 
 	/* project from direction vector to barycentric coordinates in triangles */
+	float3 signed_N = N;
+
 	N.x = fabsf(N.x);
 	N.y = fabsf(N.y);
 	N.z = fabsf(N.z);
@@ -293,12 +282,19 @@ ccl_device void svm_node_tex_image_box(KernelGlobals *kg, ShaderData *sd, float
 	float4 f = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
 	uint use_alpha = stack_valid(alpha_offset);
 
-	if(weight.x > 0.0f)
-		f += weight.x*svm_image_texture(kg, id, co.y, co.z, srgb, use_alpha);
-	if(weight.y > 0.0f)
-		f += weight.y*svm_image_texture(kg, id, co.x, co.z, srgb, use_alpha);
-	if(weight.z > 0.0f)
-		f += weight.z*svm_image_texture(kg, id, co.y, co.x, srgb, use_alpha);
+	/* Map so that no textures are flipped, rotation is somewhat arbitrary. */
+	if(weight.x > 0.0f) {
+		float2 uv = make_float2((signed_N.x < 0.0f)? 1.0f - co.y: co.y, co.z);
+		f += weight.x*svm_image_texture(kg, id, uv.x, uv.y, srgb, use_alpha);
+	}
+	if(weight.y > 0.0f) {
+		float2 uv = make_float2((signed_N.y > 0.0f)? 1.0f - co.x: co.x, co.z);
+		f += weight.y*svm_image_texture(kg, id, uv.x, uv.y, srgb, use_alpha);
+	}
+	if(weight.z > 0.0f) {
+		float2 uv = make_float2((signed_N.z > 0.0f)? 1.0f - co.y: co.y, co.x);
+		f += weight.z*svm_image_texture(kg, id, uv.x, uv.y, srgb, use_alpha);
+	}
 
 	if(stack_valid(out_offset))
 		stack_store_float3(stack, out_offset, make_float3(f.x, f.y, f.z));
diff --git a/intern/cycles/render/graph.cpp b/intern/cycles/render/graph.cpp
index 2d810ff664f..08203163d1a 100644
--- a/intern/cycles/render/graph.cpp
+++ b/intern/cycles/render/graph.cpp
@@ -221,28 +221,6 @@ OutputNode *ShaderGraph::output()
 	return (OutputNode*)nodes.front();
 }
 
-ShaderGraph *ShaderGraph::copy()
-{
-	ShaderGraph *newgraph = new ShaderGraph();
-
-	/* copy nodes */
-	ShaderNodeSet nodes_all;
-	foreach(ShaderNode *node, nodes)
-		nodes_all.insert(node);
-
-	ShaderNodeMap nodes_copy;
-	copy_nodes(nodes_all, nodes_copy);
-
-	/* add nodes (in same order, so output is still first) */
-	newgraph->clear_nodes();
-	foreach(ShaderNode *node, nodes)
-		newgraph->add(nodes_copy[node]);
-
-	newgraph->simplified = simplified;
-
-	return newgraph;
-}
-
 void ShaderGraph::connect(ShaderOutput *from, ShaderInput *to)
 {
 	assert(!finalized);
@@ -1040,6 +1018,9 @@ int ShaderGraph::get_num_closures()
 		else if(CLOSURE_IS_PRINCIPLED(closure_type)) {
 			num_closures += 8;
 		}
+		else if(CLOSURE_IS_VOLUME(closure_type)) {
+			num_closures += VOLUME_STACK_SIZE;
+		}
 		else {
 			++num_closures;
 		}
diff --git a/intern/cycles/render/graph.h b/intern/cycles/render/graph.h
index 72e391991a7..f0fd789c6bd 100644
--- a/intern/cycles/render/graph.h
+++ b/intern/cycles/render/graph.h
@@ -151,6 +151,7 @@ public:
 	virtual bool has_surface_emission() { return false; }
 	virtual bool has_surface_transparent() { return false; }
 	virtual bool has_surface_bssrdf() { return false; }
+	virtual bool has_bump() { return false; }
 	virtual bool has_bssrdf_bump() { return false; }
 	virtual bool has_spatial_varying() { return false; }
 	virtual bool has_object_dependency() { return false; }
@@ -245,8 +246,6 @@ public:
 	ShaderGraph();
 	~ShaderGraph();
 
-	ShaderGraph *copy();
-
 	ShaderNode *add(ShaderNode *node);
 	OutputNode *output();
 
diff --git a/intern/cycles/render/image.cpp b/intern/cycles/render/image.cpp
index f4482e0bb25..bb94b9bb82a 100644
--- a/intern/cycles/render/image.cpp
+++ b/intern/cycles/render/image.cpp
@@ -43,7 +43,6 @@ static bool isfinite(half /*value*/)
 ImageManager::ImageManager(const DeviceInfo& info)
 {
 	need_update = true;
-	pack_images = false;
 	osl_texture_system = NULL;
 	animation_frame = 0;
 
@@ -87,11 +86,6 @@ ImageManager::~ImageManager()
 	}
 }
 
-void ImageManager::set_pack_images(bool pack_images_)
-{
-	pack_images = pack_images_;
-}
-
 void ImageManager::set_osl_texture_system(void *texture_system)
 {
 	osl_texture_system = texture_system;
@@ -115,16 +109,18 @@ bool ImageManager::set_animation_frame_update(int frame)
 
 ImageDataType ImageManager::get_image_metadata(const string& filename,
                                                void *builtin_data,
-                                               bool& is_linear)
+                                               bool& is_linear,
+                                               bool& builtin_free_cache)
 {
 	bool is_float = false, is_half = false;
 	is_linear = false;
+	builtin_free_cache = false;
 	int channels = 4;
 
 	if(builtin_data) {
 		if(builtin_image_info_cb) {
 			int width, height, depth;
-			builtin_image_info_cb(filename, builtin_data, is_float, width, height, depth, channels);
+			builtin_image_info_cb(filename, builtin_data, is_float, width, height, depth, channels, builtin_free_cache);
 		}
 
 		if(is_float) {
@@ -218,37 +214,14 @@ int ImageManager::max_flattened_slot(ImageDataType type)
 /* The lower three bits of a device texture slot number indicate its type.
  * These functions convert the slot ids from ImageManager "images" ones
  * to device ones and vice verse.
- *
- * There are special cases for CUDA Fermi, since there we have only 90 image texture
- * slots available and should keep the flattended numbers in the 0-89 range.
  */
 int ImageManager::type_index_to_flattened_slot(int slot, ImageDataType type)
 {
-	if(cuda_fermi_limits) {
-		if(type == IMAGE_DATA_TYPE_BYTE4) {
-			return slot + TEX_START_BYTE4_CUDA;
-		}
-		else {
-			return slot;
-		}
-	}
-
 	return (slot << IMAGE_DATA_TYPE_SHIFT) | (type);
 }
 
 int ImageManager::flattened_slot_to_type_index(int flat_slot, ImageDataType *type)
 {
-	if(cuda_fermi_limits) {
-		if(flat_slot >= 4) {
-			*type = IMAGE_DATA_TYPE_BYTE4;
-			return flat_slot - TEX_START_BYTE4_CUDA;
-		}
-		else {
-			*type = IMAGE_DATA_TYPE_FLOAT4;
-			return flat_slot;
-		}
-	}
-
 	*type = (ImageDataType)(flat_slot & IMAGE_DATA_TYPE_MASK);
 	return flat_slot >> IMAGE_DATA_TYPE_SHIFT;
 }
@@ -295,8 +268,9 @@ int ImageManager::add_image(const string& filename,
 {
 	Image *img;
 	size_t slot;
+	bool builtin_free_cache;
 
-	ImageDataType type = get_image_metadata(filename, builtin_data, is_linear);
+	ImageDataType type = get_image_metadata(filename, builtin_data, is_linear, builtin_free_cache);
 
 	thread_scoped_lock device_lock(device_mutex);
 
@@ -364,7 +338,7 @@ int ImageManager::add_image(const string& filename,
 	else {
 		/* Very unlikely, since max_num_images is insanely big. But better safe than sorry. */
 		int tex_count = 0;
-		for (int type = 0; type < IMAGE_DATA_NUM_TYPES; type++) {
+		for(int type = 0; type < IMAGE_DATA_NUM_TYPES; type++) {
 			tex_count += tex_num_images[type];
 		}
 		if(tex_count > max_num_images) {
@@ -382,6 +356,7 @@ int ImageManager::add_image(const string& filename,
 	img = new Image();
 	img->filename = filename;
 	img->builtin_data = builtin_data;
+	img->builtin_free_cache = builtin_free_cache;
 	img->need_load = true;
 	img->animated = animated;
 	img->frame = frame;
@@ -467,7 +442,12 @@ void ImageManager::tag_reload_image(const string& filename,
 	}
 }
 
-bool ImageManager::file_load_image_generic(Image *img, ImageInput **in, int &width, int &height, int &depth, int &components)
+bool ImageManager::file_load_image_generic(Image *img,
+                                           ImageInput **in,
+                                           int &width,
+                                           int &height,
+                                           int &depth,
+                                           int &components)
 {
 	if(img->filename == "")
 		return false;
@@ -506,8 +486,8 @@ bool ImageManager::file_load_image_generic(Image *img, ImageInput **in, int &wid
 		if(!builtin_image_info_cb || !builtin_image_pixels_cb)
 			return false;
 
-		bool is_float;
-		builtin_image_info_cb(img->filename, img->builtin_data, is_float, width, height, depth, components);
+		bool is_float, free_cache;
+		builtin_image_info_cb(img->filename, img->builtin_data, is_float, width, height, depth, components, free_cache);
 	}
 
 	/* we only handle certain number of components */
@@ -542,6 +522,10 @@ bool ImageManager::file_load_image(Image *img,
 	vector<StorageType> pixels_storage;
 	StorageType *pixels;
 	const size_t max_size = max(max(width, height), depth);
+	if(max_size == 0) {
+		/* Don't bother with invalid images. */
+		return false;
+	}
 	if(texture_limit > 0 && max_size > texture_limit) {
 		pixels_storage.resize(((size_t)width)*height*depth*4);
 		pixels = &pixels_storage[0];
@@ -549,6 +533,10 @@ bool ImageManager::file_load_image(Image *img,
 	else {
 		pixels = (StorageType*)tex_img.resize(width, height, depth);
 	}
+	if(pixels == NULL) {
+		/* Could be that we've run out of memory. */
+		return false;
+	}
 	bool cmyk = false;
 	const size_t num_pixels = ((size_t)width) * height * depth;
 	if(in) {
@@ -588,13 +576,15 @@ bool ImageManager::file_load_image(Image *img,
 			builtin_image_float_pixels_cb(img->filename,
 			                              img->builtin_data,
 			                              (float*)&pixels[0],
-			                              num_pixels * components);
+			                              num_pixels * components,
+			                              img->builtin_free_cache);
 		}
 		else if(FileFormat == TypeDesc::UINT8) {
 			builtin_image_pixels_cb(img->filename,
 			                        img->builtin_data,
 			                        (uchar*)&pixels[0],
-			                        num_pixels * components);
+			                        num_pixels * components,
+			                        img->builtin_free_cache);
 		}
 		else {
 			/* TODO(dingto): Support half for ImBuf. */
@@ -754,7 +744,7 @@ void ImageManager::device_load_image(Device *device,
 			pixels[3] = TEX_IMAGE_MISSING_A;
 		}
 
-		if(!pack_images) {
+		{
 			thread_scoped_lock device_lock(device_mutex);
 			device->tex_alloc(name.c_str(),
 			                  tex_img,
@@ -783,7 +773,7 @@ void ImageManager::device_load_image(Device *device,
 			pixels[0] = TEX_IMAGE_MISSING_R;
 		}
 
-		if(!pack_images) {
+		{
 			thread_scoped_lock device_lock(device_mutex);
 			device->tex_alloc(name.c_str(),
 			                  tex_img,
@@ -815,7 +805,7 @@ void ImageManager::device_load_image(Device *device,
 			pixels[3] = (TEX_IMAGE_MISSING_A * 255);
 		}
 
-		if(!pack_images) {
+		{
 			thread_scoped_lock device_lock(device_mutex);
 			device->tex_alloc(name.c_str(),
 			                  tex_img,
@@ -843,7 +833,7 @@ void ImageManager::device_load_image(Device *device,
 			pixels[0] = (TEX_IMAGE_MISSING_R * 255);
 		}
 
-		if(!pack_images) {
+		{
 			thread_scoped_lock device_lock(device_mutex);
 			device->tex_alloc(name.c_str(),
 			                  tex_img,
@@ -874,7 +864,7 @@ void ImageManager::device_load_image(Device *device,
 			pixels[3] = TEX_IMAGE_MISSING_A;
 		}
 
-		if(!pack_images) {
+		{
 			thread_scoped_lock device_lock(device_mutex);
 			device->tex_alloc(name.c_str(),
 			                  tex_img,
@@ -902,7 +892,7 @@ void ImageManager::device_load_image(Device *device,
 			pixels[0] = TEX_IMAGE_MISSING_R;
 		}
 
-		if(!pack_images) {
+		{
 			thread_scoped_lock device_lock(device_mutex);
 			device->tex_alloc(name.c_str(),
 			                  tex_img,
@@ -1059,9 +1049,6 @@ void ImageManager::device_update(Device *device,
 
 	pool.wait_work();
 
-	if(pack_images)
-		device_pack_images(device, dscene, progress);
-
 	need_update = false;
 }
 
@@ -1091,141 +1078,6 @@ void ImageManager::device_update_slot(Device *device,
 	}
 }
 
-uint8_t ImageManager::pack_image_options(ImageDataType type, size_t slot)
-{
-	uint8_t options = 0;
-	/* Image Options are packed into one uint:
-	 * bit 0 -> Interpolation
-	 * bit 1 + 2 + 3 -> Extension
-	 */
-	if(images[type][slot]->interpolation == INTERPOLATION_CLOSEST) {
-		options |= (1 << 0);
-	}
-	if(images[type][slot]->extension == EXTENSION_REPEAT) {
-		options |= (1 << 1);
-	}
-	else if(images[type][slot]->extension == EXTENSION_EXTEND) {
-		options |= (1 << 2);
-	}
-	else /* EXTENSION_CLIP */ {
-		options |= (1 << 3);
-	}
-	return options;
-}
-
-template<typename T>
-void ImageManager::device_pack_images_type(
-        ImageDataType type,
-        const vector<device_vector<T>*>& cpu_textures,
-        device_vector<T> *device_image,
-        uint4 *info)
-{
-	size_t size = 0, offset = 0;
-	/* First step is to calculate size of the texture we need. */
-	for(size_t slot = 0; slot < images[type].size(); slot++) {
-		if(images[type][slot] == NULL) {
-			continue;
-		}
-		device_vector<T>& tex_img = *cpu_textures[slot];
-		size += tex_img.size();
-	}
-	/* Now we know how much memory we need, so we can allocate and fill. */
-	T *pixels = device_image->resize(size);
-	for(size_t slot = 0; slot < images[type].size(); slot++) {
-		if(images[type][slot] == NULL) {
-			continue;
-		}
-		device_vector<T>& tex_img = *cpu_textures[slot];
-		uint8_t options = pack_image_options(type, slot);
-		const int index = type_index_to_flattened_slot(slot, type) * 2;
-		info[index] = make_uint4(tex_img.data_width,
-		                         tex_img.data_height,
-		                         offset,
-		                         options);
-		info[index+1] = make_uint4(tex_img.data_depth, 0, 0, 0);
-		memcpy(pixels + offset,
-		       (void*)tex_img.data_pointer,
-		       tex_img.memory_size());
-		offset += tex_img.size();
-	}
-}
-
-void ImageManager::device_pack_images(Device *device,
-                                      DeviceScene *dscene,
-                                      Progress& /*progess*/)
-{
-	/* For OpenCL, we pack all image textures into a single large texture, and
-	 * do our own interpolation in the kernel.
-	 */
-
-	/* TODO(sergey): This will over-allocate a bit, but this is constant memory
-	 * so should be fine for a short term.
-	 */
-	const size_t info_size = max4(max_flattened_slot(IMAGE_DATA_TYPE_FLOAT4),
-	                              max_flattened_slot(IMAGE_DATA_TYPE_BYTE4),
-	                              max_flattened_slot(IMAGE_DATA_TYPE_FLOAT),
-	                              max_flattened_slot(IMAGE_DATA_TYPE_BYTE));
-	uint4 *info = dscene->tex_image_packed_info.resize(info_size*2);
-
-	/* Pack byte4 textures. */
-	device_pack_images_type(IMAGE_DATA_TYPE_BYTE4,
-	                        dscene->tex_byte4_image,
-	                        &dscene->tex_image_byte4_packed,
-	                        info);
-	/* Pack float4 textures. */
-	device_pack_images_type(IMAGE_DATA_TYPE_FLOAT4,
-	                        dscene->tex_float4_image,
-	                        &dscene->tex_image_float4_packed,
-	                        info);
-	/* Pack byte textures. */
-	device_pack_images_type(IMAGE_DATA_TYPE_BYTE,
-	                        dscene->tex_byte_image,
-	                        &dscene->tex_image_byte_packed,
-	                        info);
-	/* Pack float textures. */
-	device_pack_images_type(IMAGE_DATA_TYPE_FLOAT,
-	                        dscene->tex_float_image,
-	                        &dscene->tex_image_float_packed,
-	                        info);
-
-	/* Push textures to the device. */
-	if(dscene->tex_image_byte4_packed.size()) {
-		if(dscene->tex_image_byte4_packed.device_pointer) {
-			thread_scoped_lock device_lock(device_mutex);
-			device->tex_free(dscene->tex_image_byte4_packed);
-		}
-		device->tex_alloc("__tex_image_byte4_packed", dscene->tex_image_byte4_packed);
-	}
-	if(dscene->tex_image_float4_packed.size()) {
-		if(dscene->tex_image_float4_packed.device_pointer) {
-			thread_scoped_lock device_lock(device_mutex);
-			device->tex_free(dscene->tex_image_float4_packed);
-		}
-		device->tex_alloc("__tex_image_float4_packed", dscene->tex_image_float4_packed);
-	}
-	if(dscene->tex_image_byte_packed.size()) {
-		if(dscene->tex_image_byte_packed.device_pointer) {
-			thread_scoped_lock device_lock(device_mutex);
-			device->tex_free(dscene->tex_image_byte_packed);
-		}
-		device->tex_alloc("__tex_image_byte_packed", dscene->tex_image_byte_packed);
-	}
-	if(dscene->tex_image_float_packed.size()) {
-		if(dscene->tex_image_float_packed.device_pointer) {
-			thread_scoped_lock device_lock(device_mutex);
-			device->tex_free(dscene->tex_image_float_packed);
-		}
-		device->tex_alloc("__tex_image_float_packed", dscene->tex_image_float_packed);
-	}
-	if(dscene->tex_image_packed_info.size()) {
-		if(dscene->tex_image_packed_info.device_pointer) {
-			thread_scoped_lock device_lock(device_mutex);
-			device->tex_free(dscene->tex_image_packed_info);
-		}
-		device->tex_alloc("__tex_image_packed_info", dscene->tex_image_packed_info);
-	}
-}
-
 void ImageManager::device_free_builtin(Device *device, DeviceScene *dscene)
 {
 	for(int type = 0; type < IMAGE_DATA_NUM_TYPES; type++) {
@@ -1251,18 +1103,6 @@ void ImageManager::device_free(Device *device, DeviceScene *dscene)
 	dscene->tex_float_image.clear();
 	dscene->tex_byte_image.clear();
 	dscene->tex_half_image.clear();
-
-	device->tex_free(dscene->tex_image_float4_packed);
-	device->tex_free(dscene->tex_image_byte4_packed);
-	device->tex_free(dscene->tex_image_float_packed);
-	device->tex_free(dscene->tex_image_byte_packed);
-	device->tex_free(dscene->tex_image_packed_info);
-
-	dscene->tex_image_float4_packed.clear();
-	dscene->tex_image_byte4_packed.clear();
-	dscene->tex_image_float_packed.clear();
-	dscene->tex_image_byte_packed.clear();
-	dscene->tex_image_packed_info.clear();
 }
 
 CCL_NAMESPACE_END
diff --git a/intern/cycles/render/image.h b/intern/cycles/render/image.h
index 77214bf25bc..c86d1cbedbf 100644
--- a/intern/cycles/render/image.h
+++ b/intern/cycles/render/image.h
@@ -57,7 +57,10 @@ public:
 	                      InterpolationType interpolation,
 	                      ExtensionType extension,
 	                      bool use_alpha);
-	ImageDataType get_image_metadata(const string& filename, void *builtin_data, bool& is_linear);
+	ImageDataType get_image_metadata(const string& filename,
+	                                 void *builtin_data,
+	                                 bool& is_linear,
+	                                 bool& builtin_free_cache);
 
 	void device_prepare_update(DeviceScene *dscene);
 	void device_update(Device *device,
@@ -73,7 +76,6 @@ public:
 	void device_free_builtin(Device *device, DeviceScene *dscene);
 
 	void set_osl_texture_system(void *texture_system);
-	void set_pack_images(bool pack_images_);
 	bool set_animation_frame_update(int frame);
 
 	bool need_update;
@@ -88,19 +90,23 @@ public:
 	              int &width,
 	              int &height,
 	              int &depth,
-	              int &channels)> builtin_image_info_cb;
+	              int &channels,
+	              bool &free_cache)> builtin_image_info_cb;
 	function<bool(const string &filename,
 	              void *data,
 	              unsigned char *pixels,
-	              const size_t pixels_size)> builtin_image_pixels_cb;
+	              const size_t pixels_size,
+	              const bool free_cache)> builtin_image_pixels_cb;
 	function<bool(const string &filename,
 	              void *data,
 	              float *pixels,
-	              const size_t pixels_size)> builtin_image_float_pixels_cb;
+	              const size_t pixels_size,
+	              const bool free_cache)> builtin_image_float_pixels_cb;
 
 	struct Image {
 		string filename;
 		void *builtin_data;
+		bool builtin_free_cache;
 
 		bool use_alpha;
 		bool need_load;
@@ -123,9 +129,13 @@ private:
 
 	vector<Image*> images[IMAGE_DATA_NUM_TYPES];
 	void *osl_texture_system;
-	bool pack_images;
 
-	bool file_load_image_generic(Image *img, ImageInput **in, int &width, int &height, int &depth, int &components);
+	bool file_load_image_generic(Image *img,
+	                             ImageInput **in,
+	                             int &width,
+	                             int &height,
+	                             int &depth,
+	                             int &components);
 
 	template<TypeDesc::BASETYPE FileFormat,
 	         typename StorageType,
@@ -140,8 +150,6 @@ private:
 	int flattened_slot_to_type_index(int flat_slot, ImageDataType *type);
 	string name_from_type(int type);
 
-	uint8_t pack_image_options(ImageDataType type, size_t slot);
-
 	void device_load_image(Device *device,
 	                       DeviceScene *dscene,
 	                       Scene *scene,
@@ -152,17 +160,6 @@ private:
 	                       DeviceScene *dscene,
 	                       ImageDataType type,
 	                       int slot);
-
-	template<typename T>
-	void device_pack_images_type(
-	        ImageDataType type,
-	        const vector<device_vector<T>*>& cpu_textures,
-	        device_vector<T> *device_image,
-	        uint4 *info);
-
-	void device_pack_images(Device *device,
-	                        DeviceScene *dscene,
-	                        Progress& progess);
 };
 
 CCL_NAMESPACE_END
diff --git a/intern/cycles/render/integrator.cpp b/intern/cycles/render/integrator.cpp
index a004bb5b856..15b728d6e02 100644
--- a/intern/cycles/render/integrator.cpp
+++ b/intern/cycles/render/integrator.cpp
@@ -31,7 +31,6 @@ NODE_DEFINE(Integrator)
 {
 	NodeType *type = NodeType::add("integrator", create);
 
-	SOCKET_INT(min_bounce, "Min Bounce", 2);
 	SOCKET_INT(max_bounce, "Max Bounce", 7);
 
 	SOCKET_INT(max_diffuse_bounce, "Max Diffuse Bounce", 7);
@@ -39,9 +38,7 @@ NODE_DEFINE(Integrator)
 	SOCKET_INT(max_transmission_bounce, "Max Transmission Bounce", 7);
 	SOCKET_INT(max_volume_bounce, "Max Volume Bounce", 7);
 
-	SOCKET_INT(transparent_min_bounce, "Transparent Min Bounce", 2);
 	SOCKET_INT(transparent_max_bounce, "Transparent Max Bounce", 7);
-	SOCKET_BOOLEAN(transparent_shadows, "Transparent Shadows", false);
 
 	SOCKET_INT(ao_bounces, "AO Bounces", 0);
 
@@ -104,7 +101,6 @@ void Integrator::device_update(Device *device, DeviceScene *dscene, Scene *scene
 
 	/* integrator parameters */
 	kintegrator->max_bounce = max_bounce + 1;
-	kintegrator->min_bounce = min_bounce + 1;
 
 	kintegrator->max_diffuse_bounce = max_diffuse_bounce + 1;
 	kintegrator->max_glossy_bounce = max_glossy_bounce + 1;
@@ -112,7 +108,6 @@ void Integrator::device_update(Device *device, DeviceScene *dscene, Scene *scene
 	kintegrator->max_volume_bounce = max_volume_bounce + 1;
 
 	kintegrator->transparent_max_bounce = transparent_max_bounce + 1;
-	kintegrator->transparent_min_bounce = transparent_min_bounce + 1;
 
 	if(ao_bounces == 0) {
 		kintegrator->ao_bounces = INT_MAX;
@@ -125,19 +120,14 @@ void Integrator::device_update(Device *device, DeviceScene *dscene, Scene *scene
 	 * We only need to enable transparent shadows, if we actually have 
 	 * transparent shaders in the scene. Otherwise we can disable it
 	 * to improve performance a bit. */
-	if(transparent_shadows) {
-		kintegrator->transparent_shadows = false;
-		foreach(Shader *shader, scene->shaders) {
-			/* keep this in sync with SD_HAS_TRANSPARENT_SHADOW in shader.cpp */
-			if((shader->has_surface_transparent && shader->use_transparent_shadow) || shader->has_volume) {
-				kintegrator->transparent_shadows = true;
-				break;
-			}
+	kintegrator->transparent_shadows = false;
+	foreach(Shader *shader, scene->shaders) {
+		/* keep this in sync with SD_HAS_TRANSPARENT_SHADOW in shader.cpp */
+		if((shader->has_surface_transparent && shader->use_transparent_shadow) || shader->has_volume) {
+			kintegrator->transparent_shadows = true;
+			break;
 		}
 	}
-	else {
-		kintegrator->transparent_shadows = false;
-	}
 
 	kintegrator->volume_max_steps = volume_max_steps;
 	kintegrator->volume_step_size = volume_step_size;
diff --git a/intern/cycles/render/integrator.h b/intern/cycles/render/integrator.h
index 9501d7f8416..3cb430d72b4 100644
--- a/intern/cycles/render/integrator.h
+++ b/intern/cycles/render/integrator.h
@@ -31,7 +31,6 @@ class Integrator : public Node {
 public:
 	NODE_DECLARE
 
-	int min_bounce;
 	int max_bounce;
 
 	int max_diffuse_bounce;
@@ -39,9 +38,7 @@ public:
 	int max_transmission_bounce;
 	int max_volume_bounce;
 
-	int transparent_min_bounce;
 	int transparent_max_bounce;
-	bool transparent_shadows;
 
 	int ao_bounces;
 
diff --git a/intern/cycles/render/light.cpp b/intern/cycles/render/light.cpp
index 93d88c5642c..4adc00bc839 100644
--- a/intern/cycles/render/light.cpp
+++ b/intern/cycles/render/light.cpp
@@ -225,17 +225,13 @@ void LightManager::disable_ineffective_light(Device *device, Scene *scene)
 bool LightManager::object_usable_as_light(Object *object) {
 	Mesh *mesh = object->mesh;
 	/* Skip objects with NaNs */
-	if (!object->bounds.valid()) {
+	if(!object->bounds.valid()) {
 		return false;
 	}
 	/* Skip if we are not visible for BSDFs. */
 	if(!(object->visibility & (PATH_RAY_DIFFUSE|PATH_RAY_GLOSSY|PATH_RAY_TRANSMIT))) {
 		return false;
 	}
-	/* Skip motion blurred deforming meshes, not supported yet. */
-	if(mesh->has_motion_blur()) {
-		return false;
-	}
 	/* Skip if we have no emission shaders. */
 	/* TODO(sergey): Ideally we want to avoid such duplicated loop, since it'll
 	 * iterate all mesh shaders twice (when counting and when calculating
diff --git a/intern/cycles/render/mesh.cpp b/intern/cycles/render/mesh.cpp
index 03825f780e0..84537bf5993 100644
--- a/intern/cycles/render/mesh.cpp
+++ b/intern/cycles/render/mesh.cpp
@@ -1925,16 +1925,7 @@ void MeshManager::device_update_displacement_images(Device *device,
 					if(node->special_type != SHADER_SPECIAL_TYPE_IMAGE_SLOT) {
 						continue;
 					}
-					if(device->info.pack_images) {
-						/* If device requires packed images we need to update all
-						 * images now, even if they're not used for displacement.
-						 */
-						image_manager->device_update(device,
-						                             dscene,
-						                             scene,
-						                             progress);
-						return;
-					}
+
 					ImageSlotTextureNode *image_node = static_cast<ImageSlotTextureNode*>(node);
 					int slot = image_node->slot;
 					if(slot != -1) {
diff --git a/intern/cycles/render/nodes.cpp b/intern/cycles/render/nodes.cpp
index 86e25df1da3..2b682756c6a 100644
--- a/intern/cycles/render/nodes.cpp
+++ b/intern/cycles/render/nodes.cpp
@@ -365,7 +365,8 @@ void ImageTextureNode::compile(OSLCompiler& compiler)
 	if(is_float == -1) {
 		if(builtin_data == NULL) {
 			ImageDataType type;
-			type = image_manager->get_image_metadata(filename.string(), NULL, is_linear);
+			bool builtin_free_cache;
+			type = image_manager->get_image_metadata(filename.string(), NULL, is_linear, builtin_free_cache);
 			if(type == IMAGE_DATA_TYPE_FLOAT || type == IMAGE_DATA_TYPE_FLOAT4)
 				is_float = 1;
 		}
@@ -554,7 +555,8 @@ void EnvironmentTextureNode::compile(OSLCompiler& compiler)
 	if(is_float == -1) {
 		if(builtin_data == NULL) {
 			ImageDataType type;
-			type = image_manager->get_image_metadata(filename.string(), NULL, is_linear);
+			bool builtin_free_cache;
+			type = image_manager->get_image_metadata(filename.string(), NULL, is_linear, builtin_free_cache);
 			if(type == IMAGE_DATA_TYPE_FLOAT || type == IMAGE_DATA_TYPE_FLOAT4)
 				is_float = 1;
 		}
@@ -1799,6 +1801,14 @@ BsdfBaseNode::BsdfBaseNode(const NodeType *node_type)
 	special_type = SHADER_SPECIAL_TYPE_CLOSURE;
 }
 
+bool BsdfBaseNode::has_bump()
+{
+	/* detect if anything is plugged into the normal input besides the default */
+	ShaderInput *normal_in = input("Normal");
+	return (normal_in && normal_in->link &&
+	        normal_in->link->parent->special_type != SHADER_SPECIAL_TYPE_GEOMETRY);
+}
+
 /* BSDF Closure */
 
 BsdfNode::BsdfNode(const NodeType *node_type)
@@ -2437,9 +2447,7 @@ void PrincipledBsdfNode::compile(OSLCompiler& compiler)
 
 bool PrincipledBsdfNode::has_bssrdf_bump()
 {
-	/* detect if anything is plugged into the normal input besides the default */
-	ShaderInput *normal_in = input("Normal");
-	return (normal_in->link && normal_in->link->parent->special_type != SHADER_SPECIAL_TYPE_GEOMETRY);
+	return has_surface_bssrdf() && has_bump();
 }
 
 /* Translucent BSDF Closure */
diff --git a/intern/cycles/render/nodes.h b/intern/cycles/render/nodes.h
index c0271a3c8eb..ec4c7c7c50d 100644
--- a/intern/cycles/render/nodes.h
+++ b/intern/cycles/render/nodes.h
@@ -326,6 +326,16 @@ class BsdfBaseNode : public ShaderNode {
 public:
 	BsdfBaseNode(const NodeType *node_type);
 
+	bool has_spatial_varying() { return true; }
+	virtual ClosureType get_closure_type() { return closure; }
+	virtual bool has_bump();
+
+	virtual bool equals(const ShaderNode& /*other*/)
+	{
+		/* TODO(sergey): With some care BSDF nodes can be de-duplicated. */
+		return false;
+	}
+
 	ClosureType closure;
 };
 
@@ -334,19 +344,11 @@ public:
 	explicit BsdfNode(const NodeType *node_type);
 	SHADER_NODE_BASE_CLASS(BsdfNode)
 
-	bool has_spatial_varying() { return true; }
 	void compile(SVMCompiler& compiler, ShaderInput *param1, ShaderInput *param2, ShaderInput *param3 = NULL, ShaderInput *param4 = NULL);
-	virtual ClosureType get_closure_type() { return closure; }
 
 	float3 color;
 	float3 normal;
 	float surface_mix_weight;
-
-	virtual bool equals(const ShaderNode& /*other*/)
-	{
-		/* TODO(sergey): With some care BSDF nodes can be de-duplicated. */
-		return false;
-	}
 };
 
 class AnisotropicBsdfNode : public BsdfNode {
@@ -373,7 +375,6 @@ class PrincipledBsdfNode : public BsdfBaseNode {
 public:
 	SHADER_NODE_CLASS(PrincipledBsdfNode)
 
-	bool has_spatial_varying() { return true; }
 	bool has_surface_bssrdf();
 	bool has_bssrdf_bump();
 	void compile(SVMCompiler& compiler, ShaderInput *metallic, ShaderInput *subsurface, ShaderInput *subsurface_radius,
@@ -390,13 +391,6 @@ public:
 	float surface_mix_weight;
 	ClosureType distribution, distribution_orig;
 
-	virtual bool equals(const ShaderNode * /*other*/)
-	{
-		/* TODO(sergey): With some care BSDF nodes can be de-duplicated. */
-		return false;
-	}
-
-	ClosureType get_closure_type() { return closure; }
 	bool has_integrator_dependency();
 	void attributes(Shader *shader, AttributeRequestSet *attributes);
 };
diff --git a/intern/cycles/render/object.cpp b/intern/cycles/render/object.cpp
index 375abfeb27a..12690090066 100644
--- a/intern/cycles/render/object.cpp
+++ b/intern/cycles/render/object.cpp
@@ -262,6 +262,17 @@ bool Object::is_traceable()
 	return true;
 }
 
+uint Object::visibility_for_tracing() const {
+	uint trace_visibility = visibility;
+	if (is_shadow_catcher) {
+		trace_visibility &= ~PATH_RAY_SHADOW_NON_CATCHER;
+	}
+	else {
+		trace_visibility &= ~PATH_RAY_SHADOW_CATCHER;
+	}
+	return trace_visibility;
+}
+
 /* Object Manager */
 
 ObjectManager::ObjectManager()
@@ -356,6 +367,13 @@ void ObjectManager::device_update_object_transform(UpdateObejctTransformState *s
 	/* OBJECT_PROPERTIES */
 	objects[offset+8] = make_float4(surface_area, pass_id, random_number, __int_as_float(particle_index));
 
+	if(mesh->use_motion_blur) {
+		state->have_motion = true;
+	}
+	if(mesh->attributes.find(ATTR_STD_MOTION_VERTEX_POSITION)) {
+		flag |= SD_OBJECT_HAS_VERTEX_MOTION;
+	}
+
 	if(state->need_motion == Scene::MOTION_PASS) {
 		/* Motion transformations, is world/object space depending if mesh
 		 * comes with deformed position in object space, or if we transform
@@ -376,9 +394,6 @@ void ObjectManager::device_update_object_transform(UpdateObejctTransformState *s
 			mtfm.pre = mtfm.pre * itfm;
 			mtfm.post = mtfm.post * itfm;
 		}
-		else {
-			flag |= SD_OBJECT_HAS_VERTEX_MOTION;
-		}
 
 		memcpy(&objects_vector[object_index*OBJECT_VECTOR_SIZE+0], &mtfm.pre, sizeof(float4)*3);
 		memcpy(&objects_vector[object_index*OBJECT_VECTOR_SIZE+3], &mtfm.post, sizeof(float4)*3);
@@ -397,10 +412,6 @@ void ObjectManager::device_update_object_transform(UpdateObejctTransformState *s
 	}
 #endif
 
-	if(mesh->use_motion_blur) {
-		state->have_motion = true;
-	}
-
 	/* Dupli object coords and motion info. */
 	int totalsteps = mesh->motion_steps;
 	int numsteps = (totalsteps - 1)/2;
diff --git a/intern/cycles/render/object.h b/intern/cycles/render/object.h
index 12d7b2c81cf..6927bbfe4c7 100644
--- a/intern/cycles/render/object.h
+++ b/intern/cycles/render/object.h
@@ -60,7 +60,7 @@ public:
 
 	ParticleSystem *particle_system;
 	int particle_index;
-	
+
 	Object();
 	~Object();
 
@@ -75,6 +75,11 @@ public:
 	 * kernel scene.
 	 */
 	bool is_traceable();
+
+	/* Combine object's visibility with all possible internal run-time
+	 * determined flags which denotes trace-time visibility.
+	 */
+	uint visibility_for_tracing() const;
 };
 
 /* Object Manager */
diff --git a/intern/cycles/render/osl.cpp b/intern/cycles/render/osl.cpp
index a794f233718..5c5ac6e2be9 100644
--- a/intern/cycles/render/osl.cpp
+++ b/intern/cycles/render/osl.cpp
@@ -233,8 +233,10 @@ void OSLShaderManager::shading_system_init()
 			"glossy",			/* PATH_RAY_GLOSSY */
 			"singular",			/* PATH_RAY_SINGULAR */
 			"transparent",		/* PATH_RAY_TRANSPARENT */
-			"shadow",			/* PATH_RAY_SHADOW_OPAQUE */
-			"shadow",			/* PATH_RAY_SHADOW_TRANSPARENT */
+			"shadow",			/* PATH_RAY_SHADOW_OPAQUE_NON_CATCHER */
+			"shadow",			/* PATH_RAY_SHADOW_OPAQUE_CATCHER */
+			"shadow",			/* PATH_RAY_SHADOW_TRANSPARENT_NON_CATCHER */
+			"shadow",			/* PATH_RAY_SHADOW_TRANSPARENT_CATCHER */
 
 			"__unused__",
 			"__unused__",
@@ -719,6 +721,7 @@ void OSLCompiler::add(ShaderNode *node, const char *name, bool isfilepath)
 				current_shader->has_surface_bssrdf = true;
 				current_shader->has_bssrdf_bump = true; /* can't detect yet */
 			}
+			current_shader->has_bump = true; /* can't detect yet */
 		}
 
 		if(node->has_spatial_varying()) {
@@ -1027,6 +1030,9 @@ void OSLCompiler::generate_nodes(const ShaderNodeSet& nodes)
 							if(node->has_bssrdf_bump())
 								current_shader->has_bssrdf_bump = true;
 						}
+						if(node->has_bump()) {
+							current_shader->has_bump = true;
+						}
 					}
 					else if(current_type == SHADER_TYPE_VOLUME) {
 						if(node->has_spatial_varying())
@@ -1089,21 +1095,14 @@ void OSLCompiler::compile(Scene *scene, OSLGlobals *og, Shader *shader)
 		ShaderGraph *graph = shader->graph;
 		ShaderNode *output = (graph)? graph->output(): NULL;
 
-		/* copy graph for shader with bump mapping */
-		if(output->input("Surface")->link && output->input("Displacement")->link)
-			if(!shader->graph_bump)
-				shader->graph_bump = shader->graph->copy();
+		bool has_bump = (shader->displacement_method != DISPLACE_TRUE) &&
+		                output->input("Surface")->link && output->input("Displacement")->link;
 
 		/* finalize */
 		shader->graph->finalize(scene,
-		                        false,
-		                        shader->has_integrator_dependency);
-		if(shader->graph_bump) {
-			shader->graph_bump->finalize(scene,
-			                             true,
-			                             shader->has_integrator_dependency,
-			                             shader->displacement_method == DISPLACE_BOTH);
-		}
+		                        has_bump,
+		                        shader->has_integrator_dependency,
+		                        shader->displacement_method == DISPLACE_BOTH);
 
 		current_shader = shader;
 
@@ -1111,7 +1110,8 @@ void OSLCompiler::compile(Scene *scene, OSLGlobals *og, Shader *shader)
 		shader->has_surface_emission = false;
 		shader->has_surface_transparent = false;
 		shader->has_surface_bssrdf = false;
-		shader->has_bssrdf_bump = false;
+		shader->has_bump = has_bump;
+		shader->has_bssrdf_bump = has_bump;
 		shader->has_volume = false;
 		shader->has_displacement = false;
 		shader->has_surface_spatial_varying = false;
@@ -1123,8 +1123,8 @@ void OSLCompiler::compile(Scene *scene, OSLGlobals *og, Shader *shader)
 		if(shader->used && graph && output->input("Surface")->link) {
 			shader->osl_surface_ref = compile_type(shader, shader->graph, SHADER_TYPE_SURFACE);
 
-			if(shader->graph_bump && shader->displacement_method != DISPLACE_TRUE)
-				shader->osl_surface_bump_ref = compile_type(shader, shader->graph_bump, SHADER_TYPE_BUMP);
+			if(has_bump)
+				shader->osl_surface_bump_ref = compile_type(shader, shader->graph, SHADER_TYPE_BUMP);
 			else
 				shader->osl_surface_bump_ref = OSL::ShaderGroupRef();
 
diff --git a/intern/cycles/render/scene.cpp b/intern/cycles/render/scene.cpp
index 4db20338744..c59a5d97df5 100644
--- a/intern/cycles/render/scene.cpp
+++ b/intern/cycles/render/scene.cpp
@@ -148,8 +148,6 @@ void Scene::device_update(Device *device_, Progress& progress)
 	 * - Film needs light manager to run for use_light_visibility
 	 * - Lookup tables are done a second time to handle film tables
 	 */
-	
-	image_manager->set_pack_images(device->info.pack_images);
 
 	progress.set_status("Updating Shaders");
 	shader_manager->device_update(device, &dscene, this, progress);
diff --git a/intern/cycles/render/scene.h b/intern/cycles/render/scene.h
index 4c2c4f5fcc3..0194327f567 100644
--- a/intern/cycles/render/scene.h
+++ b/intern/cycles/render/scene.h
@@ -121,13 +121,6 @@ public:
 	vector<device_vector<uchar>* > tex_byte_image;
 	vector<device_vector<half>* > tex_half_image;
 
-	/* opencl images */
-	device_vector<float4> tex_image_float4_packed;
-	device_vector<uchar4> tex_image_byte4_packed;
-	device_vector<float> tex_image_float_packed;
-	device_vector<uchar> tex_image_byte_packed;
-	device_vector<uint4> tex_image_packed_info;
-
 	KernelData data;
 };
 
diff --git a/intern/cycles/render/session.cpp b/intern/cycles/render/session.cpp
index ae462a1084a..f68efe38add 100644
--- a/intern/cycles/render/session.cpp
+++ b/intern/cycles/render/session.cpp
@@ -46,7 +46,7 @@ Session::Session(const SessionParams& params_)
 : params(params_),
   tile_manager(params.progressive, params.samples, params.tile_size, params.start_resolution,
        params.background == false || params.progressive_refine, params.background, params.tile_order,
-       max(params.device.multi_devices.size(), 1)),
+       max(params.device.multi_devices.size(), 1), params.pixel_size),
   stats()
 {
 	device_use_gl = ((params.device.type != DEVICE_CPU) && !params.background);
@@ -721,7 +721,6 @@ DeviceRequestedFeatures Session::get_requested_device_features()
 	BakeManager *bake_manager = scene->bake_manager;
 	requested_features.use_baking = bake_manager->get_baking();
 	requested_features.use_integrator_branched = (scene->integrator->method == Integrator::BRANCHED_PATH);
-	requested_features.use_transparent &= scene->integrator->transparent_shadows;
 	requested_features.use_denoising = params.use_denoising;
 
 	return requested_features;
@@ -931,7 +930,7 @@ void Session::update_status_time(bool show_pause, bool show_done)
 		const bool rendering_finished = (tile == num_tiles);
 		const bool is_last_tile = (tile + 1) == num_tiles;
 
-		substatus = string_printf("Path Tracing Tile %d/%d", tile, num_tiles);
+		substatus = string_printf("Rendered %d/%d Tiles", tile, num_tiles);
 
 		if(!rendering_finished && (device->show_samples() || (is_cpu && is_last_tile))) {
 			/* Some devices automatically support showing the sample number:
@@ -961,6 +960,7 @@ void Session::update_status_time(bool show_pause, bool show_done)
 	}
 	else if(show_done) {
 		status = "Done";
+		progress.set_end_time(); /* Save end time so that further calls to get_time are accurate. */
 	}
 	else {
 		status = substatus;
diff --git a/intern/cycles/render/session.h b/intern/cycles/render/session.h
index 9f8bb8c42fa..980eda0876d 100644
--- a/intern/cycles/render/session.h
+++ b/intern/cycles/render/session.h
@@ -53,6 +53,7 @@ public:
 	int2 tile_size;
 	TileOrder tile_order;
 	int start_resolution;
+	int pixel_size;
 	int threads;
 
 	bool display_buffer_linear;
@@ -81,6 +82,7 @@ public:
 		samples = INT_MAX;
 		tile_size = make_int2(64, 64);
 		start_resolution = INT_MAX;
+		pixel_size = 1;
 		threads = 0;
 
 		use_denoising = false;
@@ -110,6 +112,7 @@ public:
 		&& experimental == params.experimental
 		&& tile_size == params.tile_size
 		&& start_resolution == params.start_resolution
+		&& pixel_size == params.pixel_size
 		&& threads == params.threads
 		&& display_buffer_linear == params.display_buffer_linear
 		&& cancel_timeout == params.cancel_timeout
diff --git a/intern/cycles/render/shader.cpp b/intern/cycles/render/shader.cpp
index 50400edd5ca..86378dfb495 100644
--- a/intern/cycles/render/shader.cpp
+++ b/intern/cycles/render/shader.cpp
@@ -177,7 +177,6 @@ Shader::Shader()
 	pass_id = 0;
 
 	graph = NULL;
-	graph_bump = NULL;
 
 	has_surface = false;
 	has_surface_transparent = false;
@@ -185,11 +184,13 @@ Shader::Shader()
 	has_surface_bssrdf = false;
 	has_volume = false;
 	has_displacement = false;
+	has_bump = false;
 	has_bssrdf_bump = false;
 	has_surface_spatial_varying = false;
 	has_volume_spatial_varying = false;
 	has_object_dependency = false;
 	has_integrator_dependency = false;
+	has_volume_connected = false;
 
 	displacement_method = DISPLACE_BUMP;
 
@@ -203,7 +204,6 @@ Shader::Shader()
 Shader::~Shader()
 {
 	delete graph;
-	delete graph_bump;
 }
 
 bool Shader::is_constant_emission(float3 *emission)
@@ -238,9 +238,7 @@ void Shader::set_graph(ShaderGraph *graph_)
 
 	/* assign graph */
 	delete graph;
-	delete graph_bump;
 	graph = graph_;
-	graph_bump = NULL;
 
 	/* Store info here before graph optimization to make sure that
 	 * nodes that get optimized away still count. */
@@ -457,15 +455,11 @@ void ShaderManager::device_update_common(Device *device,
 			flag |= SD_VOLUME_MIS;
 		if(shader->volume_interpolation_method == VOLUME_INTERPOLATION_CUBIC)
 			flag |= SD_VOLUME_CUBIC;
-		if(shader->graph_bump)
+		if(shader->has_bump)
 			flag |= SD_HAS_BUMP;
 		if(shader->displacement_method != DISPLACE_BUMP)
 			flag |= SD_HAS_DISPLACEMENT;
 
-		/* shader with bump mapping */
-		if(shader->displacement_method != DISPLACE_TRUE && shader->graph_bump)
-			flag |= SD_HAS_BSSRDF_BUMP;
-
 		/* constant emission check */
 		float3 constant_emission = make_float3(0.0f, 0.0f, 0.0f);
 		if(shader->is_constant_emission(&constant_emission))
@@ -502,9 +496,7 @@ void ShaderManager::device_update_common(Device *device,
 	KernelIntegrator *kintegrator = &dscene->data.integrator;
 	kintegrator->use_volumes = has_volumes;
 	/* TODO(sergey): De-duplicate with flags set in integrator.cpp. */
-	if(scene->integrator->transparent_shadows) {
-		kintegrator->transparent_shadows = has_transparent_shadow;
-	}
+	kintegrator->transparent_shadows = has_transparent_shadow;
 }
 
 void ShaderManager::device_free_common(Device *device, DeviceScene *dscene, Scene *scene)
@@ -609,11 +601,6 @@ void ShaderManager::get_requested_features(Scene *scene,
 		Shader *shader = scene->shaders[i];
 		/* Gather requested features from all the nodes from the graph nodes. */
 		get_requested_graph_features(shader->graph, requested_features);
-		/* Gather requested features from the graph itself. */
-		if(shader->graph_bump) {
-			get_requested_graph_features(shader->graph_bump,
-			                             requested_features);
-		}
 		ShaderNode *output_node = shader->graph->output();
 		if(output_node->input("Displacement")->link != NULL) {
 			requested_features->nodes_features |= NODE_FEATURE_BUMP;
diff --git a/intern/cycles/render/shader.h b/intern/cycles/render/shader.h
index b6714b13247..79a67d6756a 100644
--- a/intern/cycles/render/shader.h
+++ b/intern/cycles/render/shader.h
@@ -89,11 +89,6 @@ public:
 	/* shader graph */
 	ShaderGraph *graph;
 
-	/* shader graph with auto bump mapping included, we compile two shaders,
-	 * with and without bump,  because the displacement method is a mesh
-	 * level setting, so we need to handle both */
-	ShaderGraph *graph_bump;
-
 	/* sampling */
 	bool use_mis;
 	bool use_transparent_shadow;
@@ -121,6 +116,7 @@ public:
 	bool has_volume;
 	bool has_displacement;
 	bool has_surface_bssrdf;
+	bool has_bump;
 	bool has_bssrdf_bump;
 	bool has_surface_spatial_varying;
 	bool has_volume_spatial_varying;
diff --git a/intern/cycles/render/svm.cpp b/intern/cycles/render/svm.cpp
index 48287d872d4..32f89897970 100644
--- a/intern/cycles/render/svm.cpp
+++ b/intern/cycles/render/svm.cpp
@@ -521,6 +521,9 @@ void SVMCompiler::generate_closure_node(ShaderNode *node,
 			if(node->has_bssrdf_bump())
 				current_shader->has_bssrdf_bump = true;
 		}
+		if(node->has_bump()) {
+			current_shader->has_bump = true;
+		}
 	}
 }
 
@@ -799,29 +802,21 @@ void SVMCompiler::compile(Scene *scene,
                           Summary *summary)
 {
 	/* copy graph for shader with bump mapping */
-	ShaderNode *node = shader->graph->output();
+	ShaderNode *output = shader->graph->output();
 	int start_num_svm_nodes = svm_nodes.size();
 
 	const double time_start = time_dt();
 
-	if(node->input("Surface")->link && node->input("Displacement")->link)
-		if(!shader->graph_bump)
-			shader->graph_bump = shader->graph->copy();
+	bool has_bump = (shader->displacement_method != DISPLACE_TRUE) &&
+	                output->input("Surface")->link && output->input("Displacement")->link;
 
 	/* finalize */
 	{
 		scoped_timer timer((summary != NULL)? &summary->time_finalize: NULL);
 		shader->graph->finalize(scene,
-		                        false,
-		                        shader->has_integrator_dependency);
-	}
-
-	if(shader->graph_bump) {
-		scoped_timer timer((summary != NULL)? &summary->time_finalize_bump: NULL);
-		shader->graph_bump->finalize(scene,
-		                             true,
-		                             shader->has_integrator_dependency,
-		                             shader->displacement_method == DISPLACE_BOTH);
+		                        has_bump,
+		                        shader->has_integrator_dependency,
+		                        shader->displacement_method == DISPLACE_BOTH);
 	}
 
 	current_shader = shader;
@@ -830,7 +825,8 @@ void SVMCompiler::compile(Scene *scene,
 	shader->has_surface_emission = false;
 	shader->has_surface_transparent = false;
 	shader->has_surface_bssrdf = false;
-	shader->has_bssrdf_bump = false;
+	shader->has_bump = has_bump;
+	shader->has_bssrdf_bump = has_bump;
 	shader->has_volume = false;
 	shader->has_displacement = false;
 	shader->has_surface_spatial_varying = false;
@@ -839,9 +835,9 @@ void SVMCompiler::compile(Scene *scene,
 	shader->has_integrator_dependency = false;
 
 	/* generate bump shader */
-	if(shader->displacement_method != DISPLACE_TRUE && shader->graph_bump) {
+	if(has_bump) {
 		scoped_timer timer((summary != NULL)? &summary->time_generate_bump: NULL);
-		compile_type(shader, shader->graph_bump, SHADER_TYPE_BUMP);
+		compile_type(shader, shader->graph, SHADER_TYPE_BUMP);
 		svm_nodes[index].y = svm_nodes.size();
 		svm_nodes.insert(svm_nodes.end(),
 		                 current_svm_nodes.begin(),
@@ -853,7 +849,7 @@ void SVMCompiler::compile(Scene *scene,
 		scoped_timer timer((summary != NULL)? &summary->time_generate_surface: NULL);
 		compile_type(shader, shader->graph, SHADER_TYPE_SURFACE);
 		/* only set jump offset if there's no bump shader, as the bump shader will fall thru to this one if it exists */
-		if(shader->displacement_method == DISPLACE_TRUE || !shader->graph_bump) {
+		if(!has_bump) {
 			svm_nodes[index].y = svm_nodes.size();
 		}
 		svm_nodes.insert(svm_nodes.end(),
@@ -895,7 +891,6 @@ SVMCompiler::Summary::Summary()
 	: num_svm_nodes(0),
 	  peak_stack_usage(0),
 	  time_finalize(0.0),
-	  time_finalize_bump(0.0),
 	  time_generate_surface(0.0),
 	  time_generate_bump(0.0),
 	  time_generate_volume(0.0),
@@ -911,10 +906,7 @@ string SVMCompiler::Summary::full_report() const
 	report += string_printf("Peak stack usage:    %d\n", peak_stack_usage);
 
 	report += string_printf("Time (in seconds):\n");
-	report += string_printf("  Finalize:          %f\n", time_finalize);
-	report += string_printf("  Bump finalize:     %f\n", time_finalize_bump);
-	report += string_printf("Finalize:            %f\n", time_finalize +
-	                                                     time_finalize_bump);
+	report += string_printf("Finalize:            %f\n", time_finalize);
 	report += string_printf("  Surface:           %f\n", time_generate_surface);
 	report += string_printf("  Bump:              %f\n", time_generate_bump);
 	report += string_printf("  Volume:            %f\n", time_generate_volume);
diff --git a/intern/cycles/render/svm.h b/intern/cycles/render/svm.h
index abbd9e50610..98ef5fa05d8 100644
--- a/intern/cycles/render/svm.h
+++ b/intern/cycles/render/svm.h
@@ -74,9 +74,6 @@ public:
 		/* Time spent on surface graph finalization. */
 		double time_finalize;
 
-		/* Time spent on bump graph finalization. */
-		double time_finalize_bump;
-
 		/* Time spent on generating SVM nodes for surface shader. */
 		double time_generate_surface;
 
diff --git a/intern/cycles/render/tile.cpp b/intern/cycles/render/tile.cpp
index 176a1f4f0f3..a9620f79fa0 100644
--- a/intern/cycles/render/tile.cpp
+++ b/intern/cycles/render/tile.cpp
@@ -88,12 +88,14 @@ enum SpiralDirection {
 }  /* namespace */
 
 TileManager::TileManager(bool progressive_, int num_samples_, int2 tile_size_, int start_resolution_,
-                         bool preserve_tile_device_, bool background_, TileOrder tile_order_, int num_devices_)
+                         bool preserve_tile_device_, bool background_, TileOrder tile_order_,
+                         int num_devices_, int pixel_size_)
 {
 	progressive = progressive_;
 	tile_size = tile_size_;
 	tile_order = tile_order_;
 	start_resolution = start_resolution_;
+	pixel_size = pixel_size_;
 	num_samples = num_samples_;
 	num_devices = num_devices_;
 	preserve_tile_device = preserve_tile_device_;
@@ -163,15 +165,17 @@ void TileManager::set_samples(int num_samples_)
 		uint64_t pixel_samples = 0;
 		/* While rendering in the viewport, the initial preview resolution is increased to the native resolution
 		 * before the actual rendering begins. Therefore, additional pixel samples will be rendered. */
-		int divider = get_divider(params.width, params.height, start_resolution) / 2;
-		while(divider > 1) {
+		int divider = max(get_divider(params.width, params.height, start_resolution) / 2, pixel_size);
+		while(divider > pixel_size) {
 			int image_w = max(1, params.width/divider);
 			int image_h = max(1, params.height/divider);
 			pixel_samples += image_w * image_h;
 			divider >>= 1;
 		}
 
-		state.total_pixel_samples = pixel_samples + (uint64_t)get_num_effective_samples() * params.width*params.height;
+		int image_w = max(1, params.width/divider);
+		int image_h = max(1, params.height/divider);
+		state.total_pixel_samples = pixel_samples + (uint64_t)get_num_effective_samples() * image_w*image_h;
 		if(schedule_denoising) {
 			state.total_pixel_samples += params.width*params.height;
 		}
@@ -471,7 +475,7 @@ bool TileManager::done()
 	int end_sample = (range_num_samples == -1)
 	                     ? num_samples
 	                     : range_start_sample + range_num_samples;
-	return (state.resolution_divider == 1) &&
+	return (state.resolution_divider == pixel_size) &&
 	       (state.sample+state.num_samples >= end_sample);
 }
 
@@ -480,9 +484,9 @@ bool TileManager::next()
 	if(done())
 		return false;
 
-	if(progressive && state.resolution_divider > 1) {
+	if(progressive && state.resolution_divider > pixel_size) {
 		state.sample = 0;
-		state.resolution_divider /= 2;
+		state.resolution_divider = max(state.resolution_divider/2, pixel_size);
 		state.num_samples = 1;
 		set_tiles();
 	}
@@ -496,7 +500,7 @@ bool TileManager::next()
 		else
 			state.num_samples = range_num_samples;
 
-		state.resolution_divider = 1;
+		state.resolution_divider = pixel_size;
 		set_tiles();
 	}
 
diff --git a/intern/cycles/render/tile.h b/intern/cycles/render/tile.h
index e39a8f0627a..4cd57b7b30c 100644
--- a/intern/cycles/render/tile.h
+++ b/intern/cycles/render/tile.h
@@ -88,7 +88,7 @@ public:
 	int num_samples;
 
 	TileManager(bool progressive, int num_samples, int2 tile_size, int start_resolution,
-	            bool preserve_tile_device, bool background, TileOrder tile_order, int num_devices = 1);
+	            bool preserve_tile_device, bool background, TileOrder tile_order, int num_devices = 1, int pixel_size = 1);
 	~TileManager();
 
 	void free_device();
@@ -122,6 +122,7 @@ protected:
 	int2 tile_size;
 	TileOrder tile_order;
 	int start_resolution;
+	int pixel_size;
 	int num_devices;
 
 	/* in some cases it is important that the same tile will be returned for the same
diff --git a/intern/cycles/util/CMakeLists.txt b/intern/cycles/util/CMakeLists.txt
index 43f9a57d099..7f3747a0f58 100644
--- a/intern/cycles/util/CMakeLists.txt
+++ b/intern/cycles/util/CMakeLists.txt
@@ -38,6 +38,7 @@ set(SRC_HEADERS
 	util_atomic.h
 	util_boundbox.h
 	util_debug.h
+	util_defines.h
 	util_guarded_allocator.cpp
 	util_foreach.h
 	util_function.h
diff --git a/intern/cycles/util/util_atomic.h b/intern/cycles/util/util_atomic.h
index 643af87a65f..f3c7ae546a0 100644
--- a/intern/cycles/util/util_atomic.h
+++ b/intern/cycles/util/util_atomic.h
@@ -22,16 +22,6 @@
 /* Using atomic ops header from Blender. */
 #include "atomic_ops.h"
 
-ATOMIC_INLINE void atomic_update_max_z(size_t *maximum_value, size_t value)
-{
-	size_t prev_value = *maximum_value;
-	while(prev_value < value) {
-		if(atomic_cas_z(maximum_value, prev_value, value) != prev_value) {
-			break;
-		}
-	}
-}
-
 #define atomic_add_and_fetch_float(p, x) atomic_add_and_fetch_fl((p), (x))
 
 #define atomic_fetch_and_inc_uint32(p) atomic_fetch_and_add_uint32((p), 1)
diff --git a/intern/cycles/util/util_debug.cpp b/intern/cycles/util/util_debug.cpp
index 10895f2e918..eb078d69252 100644
--- a/intern/cycles/util/util_debug.cpp
+++ b/intern/cycles/util/util_debug.cpp
@@ -122,13 +122,16 @@ void DebugFlags::OpenCL::reset()
 }
 
 DebugFlags::DebugFlags()
+: viewport_static_bvh(false)
 {
 	/* Nothing for now. */
 }
 
 void DebugFlags::reset()
 {
+	viewport_static_bvh = false;
 	cpu.reset();
+	cuda.reset();
 	opencl.reset();
 }
 
diff --git a/intern/cycles/util/util_debug.h b/intern/cycles/util/util_debug.h
index 450cd900a9f..9255279c5ab 100644
--- a/intern/cycles/util/util_debug.h
+++ b/intern/cycles/util/util_debug.h
@@ -30,6 +30,9 @@ CCL_NAMESPACE_BEGIN
  */
 class DebugFlags {
 public:
+	/* Use static BVH in viewport, to match final render exactly. */
+	bool viewport_static_bvh;
+
 	/* Descriptor of CPU feature-set to be used. */
 	struct CPU {
 		CPU();
diff --git a/intern/cycles/util/util_defines.h b/intern/cycles/util/util_defines.h
new file mode 100644
index 00000000000..ae654092c87
--- /dev/null
+++ b/intern/cycles/util/util_defines.h
@@ -0,0 +1,135 @@
+
+/*
+ * Copyright 2011-2017 Blender Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __UTIL_DEFINES_H__
+#define __UTIL_DEFINES_H__
+
+/* Bitness */
+
+#if defined(__ppc64__) || defined(__PPC64__) || defined(__x86_64__) || defined(__ia64__) || defined(_M_X64)
+#  define __KERNEL_64_BIT__
+#endif
+
+/* Qualifiers for kernel code shared by CPU and GPU */
+
+#ifndef __KERNEL_GPU__
+#  define ccl_device static inline
+#  define ccl_device_noinline static
+#  define ccl_global
+#  define ccl_constant
+#  define ccl_local
+#  define ccl_local_param
+#  define ccl_private
+#  define ccl_restrict __restrict
+#  define ccl_ref &
+#  define __KERNEL_WITH_SSE_ALIGN__
+
+#  if defined(_WIN32) && !defined(FREE_WINDOWS)
+#    define ccl_device_inline static __forceinline
+#    define ccl_device_forceinline static __forceinline
+#    define ccl_align(...) __declspec(align(__VA_ARGS__))
+#    ifdef __KERNEL_64_BIT__
+#      define ccl_try_align(...) __declspec(align(__VA_ARGS__))
+#    else  /* __KERNEL_64_BIT__ */
+#      undef __KERNEL_WITH_SSE_ALIGN__
+/* No support for function arguments (error C2719). */
+#      define ccl_try_align(...)
+#    endif  /* __KERNEL_64_BIT__ */
+#    define ccl_may_alias
+#    define ccl_always_inline __forceinline
+#    define ccl_never_inline __declspec(noinline)
+#    define ccl_maybe_unused
+#  else  /* _WIN32 && !FREE_WINDOWS */
+#    define ccl_device_inline static inline __attribute__((always_inline))
+#    define ccl_device_forceinline static inline __attribute__((always_inline))
+#    define ccl_align(...) __attribute__((aligned(__VA_ARGS__)))
+#    ifndef FREE_WINDOWS64
+#      define __forceinline inline __attribute__((always_inline))
+#    endif
+#    define ccl_try_align(...) __attribute__((aligned(__VA_ARGS__)))
+#    define ccl_may_alias __attribute__((__may_alias__))
+#    define ccl_always_inline __attribute__((always_inline))
+#    define ccl_never_inline __attribute__((noinline))
+#    define ccl_maybe_unused __attribute__((used))
+#  endif  /* _WIN32 && !FREE_WINDOWS */
+
+/* Use to suppress '-Wimplicit-fallthrough' (in place of 'break'). */
+#  if defined(__GNUC__) && (__GNUC__ >= 7)  /* gcc7.0+ only */
+#    define ATTR_FALLTHROUGH __attribute__((fallthrough))
+#  else
+#    define ATTR_FALLTHROUGH ((void)0)
+#  endif
+#endif  /* __KERNEL_GPU__ */
+
+/* macros */
+
+/* hints for branch prediction, only use in code that runs a _lot_ */
+#if defined(__GNUC__) && defined(__KERNEL_CPU__)
+#  define LIKELY(x)       __builtin_expect(!!(x), 1)
+#  define UNLIKELY(x)     __builtin_expect(!!(x), 0)
+#else
+#  define LIKELY(x)       (x)
+#  define UNLIKELY(x)     (x)
+#endif
+
+#if defined(__cplusplus) && ((__cplusplus >= 201103L) || (defined(_MSC_VER) && _MSC_VER >= 1800))
+#  define HAS_CPP11_FEATURES
+#endif
+
+#if defined(__GNUC__) || defined(__clang__)
+#  if defined(HAS_CPP11_FEATURES)
+/* Some magic to be sure we don't have reference in the type. */
+template<typename T> static inline T decltype_helper(T x) { return x; }
+#    define TYPEOF(x) decltype(decltype_helper(x))
+#  else
+#    define TYPEOF(x) typeof(x)
+#  endif
+#endif
+
+/* Causes warning:
+ * incompatible types when assigning to type 'Foo' from type 'Bar'
+ * ... the compiler optimizes away the temp var */
+#ifdef __GNUC__
+#define CHECK_TYPE(var, type)  {  \
+	TYPEOF(var) *__tmp;           \
+	__tmp = (type *)NULL;         \
+	(void)__tmp;                  \
+} (void)0
+
+#define CHECK_TYPE_PAIR(var_a, var_b)  {  \
+	TYPEOF(var_a) *__tmp;                 \
+	__tmp = (typeof(var_b) *)NULL;        \
+	(void)__tmp;                          \
+} (void)0
+#else
+#  define CHECK_TYPE(var, type)
+#  define CHECK_TYPE_PAIR(var_a, var_b)
+#endif
+
+/* can be used in simple macros */
+#define CHECK_TYPE_INLINE(val, type) \
+	((void)(((type)0) != (val)))
+
+#ifndef __KERNEL_GPU__
+#  include <cassert>
+#  define util_assert(statement)  assert(statement)
+#else
+#  define util_assert(statement)
+#endif
+
+#endif /* __UTIL_DEFINES_H__ */
+
diff --git a/intern/cycles/util/util_math.h b/intern/cycles/util/util_math.h
index b719640b19c..fb04d49bcd9 100644
--- a/intern/cycles/util/util_math.h
+++ b/intern/cycles/util/util_math.h
@@ -94,6 +94,7 @@ ccl_device_inline float fminf(float a, float b)
 #ifndef __KERNEL_GPU__
 using std::isfinite;
 using std::isnan;
+using std::sqrt;
 
 ccl_device_inline int abs(int x)
 {
@@ -223,7 +224,7 @@ ccl_device_inline bool isfinite_safe(float f)
 {
 	/* By IEEE 754 rule, 2*Inf equals Inf */
 	unsigned int x = __float_as_uint(f);
-	return (f == f) && (x == 0 || (f != 2.0f*f)) && !((x << 1) > 0xff000000u);
+	return (f == f) && (x == 0 || x == (1u << 31) || (f != 2.0f*f)) && !((x << 1) > 0xff000000u);
 }
 
 ccl_device_inline float ensure_finite(float v)
@@ -329,15 +330,22 @@ template<class A, class B> A lerp(const A& a, const A& b, const B& t)
 	return (A)(a * ((B)1 - t) + b * t);
 }
 
+#endif  /* __KERNEL_OPENCL__ */
+
 /* Triangle */
 
+#ifndef __KERNEL_OPENCL__
 ccl_device_inline float triangle_area(const float3& v1,
                                       const float3& v2,
                                       const float3& v3)
+#else
+ccl_device_inline float triangle_area(const float3 v1,
+                                      const float3 v2,
+                                      const float3 v3)
+#endif
 {
 	return len(cross(v3 - v2, v1 - v2))*0.5f;
 }
-#endif  /* __KERNEL_OPENCL__ */
 
 /* Orthonormal vectors */
 
diff --git a/intern/cycles/util/util_math_float3.h b/intern/cycles/util/util_math_float3.h
index bb04c4aa2d9..e73e5bc17a2 100644
--- a/intern/cycles/util/util_math_float3.h
+++ b/intern/cycles/util/util_math_float3.h
@@ -108,8 +108,7 @@ ccl_device_inline float3 operator*(const float3& a, const float f)
 
 ccl_device_inline float3 operator*(const float f, const float3& a)
 {
-	/* TODO(sergey): Currently disabled, gives speedup but causes precision issues. */
-#if defined(__KERNEL_SSE__) && 0
+#if defined(__KERNEL_SSE__)
 	return float3(_mm_mul_ps(_mm_set1_ps(f), a.m128));
 #else
 	return make_float3(a.x*f, a.y*f, a.z*f);
@@ -118,10 +117,8 @@ ccl_device_inline float3 operator*(const float f, const float3& a)
 
 ccl_device_inline float3 operator/(const float f, const float3& a)
 {
-	/* TODO(sergey): Currently disabled, gives speedup but causes precision issues. */
-#if defined(__KERNEL_SSE__) && 0
-	__m128 rc = _mm_rcp_ps(a.m128);
-	return float3(_mm_mul_ps(_mm_set1_ps(f),rc));
+#if defined(__KERNEL_SSE__)
+	return float3(_mm_div_ps(_mm_set1_ps(f), a.m128));
 #else
 	return make_float3(f / a.x, f / a.y, f / a.z);
 #endif
@@ -135,10 +132,8 @@ ccl_device_inline float3 operator/(const float3& a, const float f)
 
 ccl_device_inline float3 operator/(const float3& a, const float3& b)
 {
-	/* TODO(sergey): Currently disabled, gives speedup but causes precision issues. */
-#if defined(__KERNEL_SSE__) && 0
-	__m128 rc = _mm_rcp_ps(b.m128);
-	return float3(_mm_mul_ps(a, rc));
+#if defined(__KERNEL_SSE__)
+	return float3(_mm_div_ps(a.m128, b.m128));
 #else
 	return make_float3(a.x / b.x, a.y / b.y, a.z / b.z);
 #endif
@@ -282,9 +277,8 @@ ccl_device_inline float3 mix(const float3& a, const float3& b, float t)
 ccl_device_inline float3 rcp(const float3& a)
 {
 #ifdef __KERNEL_SSE__
-	const float4 r(_mm_rcp_ps(a.m128));
-	return float3(_mm_sub_ps(_mm_add_ps(r, r),
-	                         _mm_mul_ps(_mm_mul_ps(r, r), a)));
+	/* Don't use _mm_rcp_ps due to poor precision. */
+	return float3(_mm_div_ps(_mm_set_ps1(1.0f), a.m128));
 #else
 	return make_float3(1.0f/a.x, 1.0f/a.y, 1.0f/a.z);
 #endif
diff --git a/intern/cycles/util/util_math_float4.h b/intern/cycles/util/util_math_float4.h
index d89121b3a1d..aa7e56fefe9 100644
--- a/intern/cycles/util/util_math_float4.h
+++ b/intern/cycles/util/util_math_float4.h
@@ -48,23 +48,30 @@ ccl_device_inline bool operator==(const float4& a, const float4& b);
 ccl_device_inline float dot(const float4& a, const float4& b);
 ccl_device_inline float len_squared(const float4& a);
 ccl_device_inline float4 rcp(const float4& a);
+ccl_device_inline float4 sqrt(const float4& a);
+ccl_device_inline float4 sqr(const float4& a);
 ccl_device_inline float4 cross(const float4& a, const float4& b);
 ccl_device_inline bool is_zero(const float4& a);
-ccl_device_inline float reduce_add(const float4& a);
 ccl_device_inline float average(const float4& a);
 ccl_device_inline float len(const float4& a);
 ccl_device_inline float4 normalize(const float4& a);
 ccl_device_inline float4 safe_normalize(const float4& a);
 ccl_device_inline float4 min(const float4& a, const float4& b);
 ccl_device_inline float4 max(const float4& a, const float4& b);
+ccl_device_inline float4 fabs(const float4& a);
 #endif  /* !__KERNEL_OPENCL__*/
 
 #ifdef __KERNEL_SSE__
 template<size_t index_0, size_t index_1, size_t index_2, size_t index_3>
 __forceinline const float4 shuffle(const float4& b);
+template<size_t index_0, size_t index_1, size_t index_2, size_t index_3>
+__forceinline const float4 shuffle(const float4& a, const float4& b);
 
 template<> __forceinline const float4 shuffle<0, 1, 0, 1>(const float4& b);
 
+template<> __forceinline const float4 shuffle<0, 1, 0, 1>(const float4& a, const float4& b);
+template<> __forceinline const float4 shuffle<2, 3, 2, 3>(const float4& a, const float4& b);
+
 #  ifdef __KERNEL_SSE3__
 template<> __forceinline const float4 shuffle<0, 0, 2, 2>(const float4& b);
 template<> __forceinline const float4 shuffle<1, 1, 3, 3>(const float4& b);
@@ -77,9 +84,7 @@ ccl_device_inline float4 select(const int4& mask,
                                 const float4& b);
 ccl_device_inline float4 reduce_min(const float4& a);
 ccl_device_inline float4 reduce_max(const float4& a);
-#  if 0
 ccl_device_inline float4 reduce_add(const float4& a);
-#  endif
 #endif  /* !__KERNEL_GPU__ */
 
 /*******************************************************************************
@@ -128,7 +133,7 @@ ccl_device_inline float4 operator/(const float4& a, float f)
 ccl_device_inline float4 operator/(const float4& a, const float4& b)
 {
 #ifdef __KERNEL_SSE__
-	return a * rcp(b);
+	return float4(_mm_div_ps(a.m128, b.m128));
 #else
 	return make_float4(a.x/b.x, a.y/b.y, a.z/b.z, a.w/b.w);
 #endif
@@ -171,8 +176,7 @@ ccl_device_inline float4 operator/=(float4& a, float f)
 ccl_device_inline int4 operator<(const float4& a, const float4& b)
 {
 #ifdef __KERNEL_SSE__
-	/* TODO(sergey): avoid cvt. */
-	return int4(_mm_cvtps_epi32(_mm_cmplt_ps(a.m128, b.m128)));
+	return int4(_mm_castps_si128(_mm_cmplt_ps(a.m128, b.m128)));
 #else
 	return make_int4(a.x < b.x, a.y < b.y, a.z < b.z, a.w < b.w);
 #endif
@@ -181,8 +185,7 @@ ccl_device_inline int4 operator<(const float4& a, const float4& b)
 ccl_device_inline int4 operator>=(const float4& a, const float4& b)
 {
 #ifdef __KERNEL_SSE__
-	/* TODO(sergey): avoid cvt. */
-	return int4(_mm_cvtps_epi32(_mm_cmpge_ps(a.m128, b.m128)));
+	return int4(_mm_castps_si128(_mm_cmpge_ps(a.m128, b.m128)));
 #else
 	return make_int4(a.x >= b.x, a.y >= b.y, a.z >= b.z, a.w >= b.w);
 #endif
@@ -191,8 +194,7 @@ ccl_device_inline int4 operator>=(const float4& a, const float4& b)
 ccl_device_inline int4 operator<=(const float4& a, const float4& b)
 {
 #ifdef __KERNEL_SSE__
-	/* TODO(sergey): avoid cvt. */
-	return int4(_mm_cvtps_epi32(_mm_cmple_ps(a.m128, b.m128)));
+	return int4(_mm_castps_si128(_mm_cmple_ps(a.m128, b.m128)));
 #else
 	return make_int4(a.x <= b.x, a.y <= b.y, a.z <= b.z, a.w <= b.w);
 #endif
@@ -224,14 +226,30 @@ ccl_device_inline float len_squared(const float4& a)
 ccl_device_inline float4 rcp(const float4& a)
 {
 #ifdef __KERNEL_SSE__
-	float4 r(_mm_rcp_ps(a.m128));
-	return float4(_mm_sub_ps(_mm_add_ps(r, r),
-	                         _mm_mul_ps(_mm_mul_ps(r, r), a)));
+	/* Don't use _mm_rcp_ps due to poor precision. */
+	return float4(_mm_div_ps(_mm_set_ps1(1.0f), a.m128));
 #else
 	return make_float4(1.0f/a.x, 1.0f/a.y, 1.0f/a.z, 1.0f/a.w);
 #endif
 }
 
+ccl_device_inline float4 sqrt(const float4& a)
+{
+#ifdef __KERNEL_SSE__
+	return float4(_mm_sqrt_ps(a.m128));
+#else
+	return make_float4(sqrtf(a.x),
+	                   sqrtf(a.y),
+	                   sqrtf(a.z),
+	                   sqrtf(a.w));
+#endif
+}
+
+ccl_device_inline float4 sqr(const float4& a)
+{
+	return a * a;
+}
+
 ccl_device_inline float4 cross(const float4& a, const float4& b)
 {
 #ifdef __KERNEL_SSE__
@@ -254,20 +272,25 @@ ccl_device_inline bool is_zero(const float4& a)
 #endif
 }
 
-ccl_device_inline float reduce_add(const float4& a)
+ccl_device_inline float4 reduce_add(const float4& a)
 {
 #ifdef __KERNEL_SSE__
+#  ifdef __KERNEL_SSE3__
+    float4 h(_mm_hadd_ps(a.m128, a.m128));
+    return float4( _mm_hadd_ps(h.m128, h.m128));
+#  else
 	float4 h(shuffle<1,0,3,2>(a) + a);
-	/* TODO(sergey): Investigate efficiency. */
-	return _mm_cvtss_f32(shuffle<2,3,0,1>(h) + h);
+	return  shuffle<2,3,0,1>(h) + h;
+#  endif
 #else
-	return ((a.x + a.y) + (a.z + a.w));
+	float sum = (a.x + a.y) + (a.z + a.w);
+	return make_float4(sum, sum, sum, sum);
 #endif
 }
 
 ccl_device_inline float average(const float4& a)
 {
-	return reduce_add(a) * 0.25f;
+	return reduce_add(a).x * 0.25f;
 }
 
 ccl_device_inline float len(const float4& a)
@@ -309,6 +332,18 @@ ccl_device_inline float4 max(const float4& a, const float4& b)
 	                   max(a.w, b.w));
 #endif
 }
+
+ccl_device_inline float4 fabs(const float4& a)
+{
+#ifdef __KERNEL_SSE__
+	return float4(_mm_and_ps(a.m128, _mm_castsi128_ps(_mm_set1_epi32(0x7fffffff))));
+#else
+	return make_float4(fabsf(a.x),
+	                   fabsf(a.y),
+	                   fabsf(a.z),
+	                   fabsf(a.w));
+#endif
+}
 #endif  /* !__KERNEL_OPENCL__*/
 
 #ifdef __KERNEL_SSE__
@@ -320,11 +355,28 @@ __forceinline const float4 shuffle(const float4& b)
 	                          _MM_SHUFFLE(index_3, index_2, index_1, index_0))));
 }
 
+template<size_t index_0, size_t index_1, size_t index_2, size_t index_3>
+__forceinline const float4 shuffle(const float4& a, const float4& b)
+{
+	return float4(_mm_shuffle_ps(a.m128, b.m128,
+	                             _MM_SHUFFLE(index_3, index_2, index_1, index_0)));
+}
+
 template<> __forceinline const float4 shuffle<0, 1, 0, 1>(const float4& b)
 {
 	return float4(_mm_castpd_ps(_mm_movedup_pd(_mm_castps_pd(b))));
 }
 
+template<> __forceinline const float4 shuffle<0, 1, 0, 1>(const float4& a, const float4& b)
+{
+	return float4(_mm_movelh_ps(a.m128, b.m128));
+}
+
+template<> __forceinline const float4 shuffle<2, 3, 2, 3>(const float4& a, const float4& b)
+{
+	return float4(_mm_movehl_ps(b.m128, a.m128));
+}
+
 #  ifdef __KERNEL_SSE3__
 template<> __forceinline const float4 shuffle<0, 0, 2, 2>(const float4& b)
 {
@@ -344,9 +396,7 @@ ccl_device_inline float4 select(const int4& mask,
                                 const float4& b)
 {
 #ifdef __KERNEL_SSE__
-	/* TODO(sergey): avoid cvt. */
-	return float4(_mm_or_ps(_mm_and_ps(_mm_cvtepi32_ps(mask), a),
-	                        _mm_andnot_ps(_mm_cvtepi32_ps(mask), b)));
+	return float4(_mm_blendv_ps(b.m128, a.m128, _mm_castsi128_ps(mask.m128)));
 #else
 	return make_float4((mask.x)? a.x: b.x,
 	                   (mask.y)? a.y: b.y,
@@ -355,6 +405,13 @@ ccl_device_inline float4 select(const int4& mask,
 #endif
 }
 
+ccl_device_inline float4 mask(const int4& mask,
+                              const float4& a)
+{
+	/* Replace elements of x with zero where mask isn't set. */
+	return select(mask, a, make_float4(0.0f));
+}
+
 ccl_device_inline float4 reduce_min(const float4& a)
 {
 #ifdef __KERNEL_SSE__
@@ -375,17 +432,15 @@ ccl_device_inline float4 reduce_max(const float4& a)
 #endif
 }
 
-#if 0
-ccl_device_inline float4 reduce_add(const float4& a)
+ccl_device_inline float4 load_float4(const float *v)
 {
 #ifdef __KERNEL_SSE__
-	float4 h = shuffle<1,0,3,2>(a) + a;
-	return shuffle<2,3,0,1>(h) + h;
+	return float4(_mm_loadu_ps(v));
 #else
-	return make_float4((a.x + a.y) + (a.z + a.w));
+	return make_float4(v[0], v[1], v[2], v[3]);
 #endif
 }
-#endif
+
 #endif  /* !__KERNEL_GPU__ */
 
 CCL_NAMESPACE_END
diff --git a/intern/cycles/util/util_math_matrix.h b/intern/cycles/util/util_math_matrix.h
index c7511f8306e..b31dbe4fc67 100644
--- a/intern/cycles/util/util_math_matrix.h
+++ b/intern/cycles/util/util_math_matrix.h
@@ -223,20 +223,20 @@ ccl_device void math_matrix_jacobi_eigendecomposition(float *A, ccl_global float
 {
 	const float singular_epsilon = 1e-9f;
 
-	for (int row = 0; row < n; row++) {
-		for (int col = 0; col < n; col++) {
+	for(int row = 0; row < n; row++) {
+		for(int col = 0; col < n; col++) {
 			MATS(V, n, row, col, v_stride) = (col == row) ? 1.0f : 0.0f;
 		}
 	}
 
-	for (int sweep = 0; sweep < 8; sweep++) {
+	for(int sweep = 0; sweep < 8; sweep++) {
 		float off_diagonal = 0.0f;
-		for (int row = 1; row < n; row++) {
-			for (int col = 0; col < row; col++) {
+		for(int row = 1; row < n; row++) {
+			for(int col = 0; col < row; col++) {
 				off_diagonal += fabsf(MAT(A, n, row, col));
 			}
 		}
-		if (off_diagonal < 1e-7f) {
+		if(off_diagonal < 1e-7f) {
 			/* The matrix has nearly reached diagonal form.
 			 * Since the eigenvalues are only used to determine truncation, their exact values aren't required - a relative error of a few ULPs won't matter at all. */
 			break;
@@ -253,7 +253,7 @@ ccl_device void math_matrix_jacobi_eigendecomposition(float *A, ccl_global float
 				float abs_element = fabsf(element);
 
 				/* If we're in a later sweep and the element already is very small, just set it to zero and skip the rotation. */
-				if (sweep > 3 && abs_element <= singular_epsilon*fabsf(MAT(A, n, row, row)) && abs_element <= singular_epsilon*fabsf(MAT(A, n, col, col))) {
+				if(sweep > 3 && abs_element <= singular_epsilon*fabsf(MAT(A, n, row, row)) && abs_element <= singular_epsilon*fabsf(MAT(A, n, col, col))) {
 					MAT(A, n, row, col) = 0.0f;
 					continue;
 				}
@@ -272,10 +272,10 @@ ccl_device void math_matrix_jacobi_eigendecomposition(float *A, ccl_global float
 				 * Then, we compute sin(phi) and cos(phi) themselves. */
 				float singular_diff = MAT(A, n, row, row) - MAT(A, n, col, col);
 				float ratio;
-				if (abs_element > singular_epsilon*fabsf(singular_diff)) {
+				if(abs_element > singular_epsilon*fabsf(singular_diff)) {
 					float cot_2phi = 0.5f*singular_diff / element;
 					ratio = 1.0f / (fabsf(cot_2phi) + sqrtf(1.0f + cot_2phi*cot_2phi));
-					if (cot_2phi < 0.0f) ratio = -ratio; /* Copy sign. */
+					if(cot_2phi < 0.0f) ratio = -ratio; /* Copy sign. */
 				}
 				else {
 					ratio = element / singular_diff;
@@ -315,21 +315,21 @@ ccl_device void math_matrix_jacobi_eigendecomposition(float *A, ccl_global float
 	}
 
 	/* Sort eigenvalues and the associated eigenvectors. */
-	for (int i = 0; i < n - 1; i++) {
+	for(int i = 0; i < n - 1; i++) {
 		float v = MAT(A, n, i, i);
 		int k = i;
-		for (int j = i; j < n; j++) {
-			if (MAT(A, n, j, j) >= v) {
+		for(int j = i; j < n; j++) {
+			if(MAT(A, n, j, j) >= v) {
 				v = MAT(A, n, j, j);
 				k = j;
 			}
 		}
-		if (k != i) {
+		if(k != i) {
 			/* Swap eigenvalues. */
 			MAT(A, n, k, k) = MAT(A, n, i, i);
 			MAT(A, n, i, i) = v;
 			/* Swap eigenvectors. */
-			for (int j = 0; j < n; j++) {
+			for(int j = 0; j < n; j++) {
 				float v = MATS(V, n, i, j, v_stride);
 				MATS(V, n, i, j, v_stride) = MATS(V, n, k, j, v_stride);
 				MATS(V, n, k, j, v_stride) = v;
@@ -339,59 +339,59 @@ ccl_device void math_matrix_jacobi_eigendecomposition(float *A, ccl_global float
 }
 
 #ifdef __KERNEL_SSE3__
-ccl_device_inline void math_vector_zero_sse(__m128 *A, int n)
+ccl_device_inline void math_vector_zero_sse(float4 *A, int n)
 {
 	for(int i = 0; i < n; i++) {
-		A[i] = _mm_setzero_ps();
+		A[i] = make_float4(0.0f);
 	}
 }
 
-ccl_device_inline void math_matrix_zero_sse(__m128 *A, int n)
+ccl_device_inline void math_matrix_zero_sse(float4 *A, int n)
 {
 	for(int row = 0; row < n; row++) {
 		for(int col = 0; col <= row; col++) {
-			MAT(A, n, row, col) = _mm_setzero_ps();
+			MAT(A, n, row, col) = make_float4(0.0f);
 		}
 	}
 }
 
 /* Add Gramian matrix of v to A.
  * The Gramian matrix of v is v^T*v, so element (i,j) is v[i]*v[j]. */
-ccl_device_inline void math_matrix_add_gramian_sse(__m128 *A, int n, const __m128 *ccl_restrict v, __m128 weight)
+ccl_device_inline void math_matrix_add_gramian_sse(float4 *A, int n, const float4 *ccl_restrict v, float4 weight)
 {
 	for(int row = 0; row < n; row++) {
 		for(int col = 0; col <= row; col++) {
-			MAT(A, n, row, col) = _mm_add_ps(MAT(A, n, row, col), _mm_mul_ps(_mm_mul_ps(v[row], v[col]), weight));
+			MAT(A, n, row, col) = MAT(A, n, row, col) + v[row] * v[col] * weight;
 		}
 	}
 }
 
-ccl_device_inline void math_vector_add_sse(__m128 *V, int n, const __m128 *ccl_restrict a)
+ccl_device_inline void math_vector_add_sse(float4 *V, int n, const float4 *ccl_restrict a)
 {
 	for(int i = 0; i < n; i++) {
-		V[i] = _mm_add_ps(V[i], a[i]);
+		V[i] += a[i];
 	}
 }
 
-ccl_device_inline void math_vector_mul_sse(__m128 *V, int n, const __m128 *ccl_restrict a)
+ccl_device_inline void math_vector_mul_sse(float4 *V, int n, const float4 *ccl_restrict a)
 {
 	for(int i = 0; i < n; i++) {
-		V[i] = _mm_mul_ps(V[i], a[i]);
+		V[i] *= a[i];
 	}
 }
 
-ccl_device_inline void math_vector_max_sse(__m128 *a, const __m128 *ccl_restrict b, int n)
+ccl_device_inline void math_vector_max_sse(float4 *a, const float4 *ccl_restrict b, int n)
 {
 	for(int i = 0; i < n; i++) {
-		a[i] = _mm_max_ps(a[i], b[i]);
+		a[i] = max(a[i], b[i]);
 	}
 }
 
-ccl_device_inline void math_matrix_hsum(float *A, int n, const __m128 *ccl_restrict B)
+ccl_device_inline void math_matrix_hsum(float *A, int n, const float4 *ccl_restrict B)
 {
 	for(int row = 0; row < n; row++) {
 		for(int col = 0; col <= row; col++) {
-			MAT(A, n, row, col) = _mm_hsum_ss(MAT(B, n, row, col));
+			MAT(A, n, row, col) = reduce_add(MAT(B, n, row, col))[0];
 		}
 	}
 }
diff --git a/intern/cycles/util/util_optimization.h b/intern/cycles/util/util_optimization.h
index 6f70a474fe7..3c5785c4807 100644
--- a/intern/cycles/util/util_optimization.h
+++ b/intern/cycles/util/util_optimization.h
@@ -19,22 +19,15 @@
 
 #ifndef __KERNEL_GPU__
 
-/* quiet unused define warnings */
-#if defined(__KERNEL_SSE2__)  || \
-	defined(__KERNEL_SSE3__)  || \
-	defined(__KERNEL_SSSE3__) || \
-	defined(__KERNEL_SSE41__) || \
-	defined(__KERNEL_AVX__)   || \
-	defined(__KERNEL_AVX2__)
-	/* do nothing */
-#endif
-
 /* x86
  *
  * Compile a regular, SSE2 and SSE3 kernel. */
 
 #if defined(i386) || defined(_M_IX86)
 
+/* We require minimum SSE2 support on x86, so auto enable. */
+#  define __KERNEL_SSE2__
+
 #  ifdef WITH_KERNEL_SSE2
 #    define WITH_CYCLES_OPTIMIZED_KERNEL_SSE2
 #  endif
@@ -73,48 +66,6 @@
 
 #endif  /* defined(__x86_64__) || defined(_M_X64) */
 
-/* SSE Experiment
- *
- * This is disabled code for an experiment to use SSE types globally for types
- * such as float3 and float4. Currently this gives an overall slowdown. */
-
-#if 0
-#  define __KERNEL_SSE__
-#  ifndef __KERNEL_SSE2__
-#    define __KERNEL_SSE2__
-#  endif
-#  ifndef __KERNEL_SSE3__
-#    define __KERNEL_SSE3__
-#  endif
-#  ifndef __KERNEL_SSSE3__
-#    define __KERNEL_SSSE3__
-#  endif
-#  ifndef __KERNEL_SSE4__
-#    define __KERNEL_SSE4__
-#  endif
-#endif
-
-/* SSE Intrinsics includes
- *
- * We assume __KERNEL_SSEX__ flags to have been defined at this point */
-
-/* SSE intrinsics headers */
-#ifndef FREE_WINDOWS64
-
-#ifdef _MSC_VER
-#  include <intrin.h>
-#elif (defined(__x86_64__) || defined(__i386__))
-#  include <x86intrin.h>
-#endif
-
-#else
-
-/* MinGW64 has conflicting declarations for these SSE headers in <windows.h>.
- * Since we can't avoid including <windows.h>, better only include that */
-#include "util/util_windows.h"
-
-#endif
-
 #endif
 
 #endif /* __UTIL_OPTIMIZATION_H__ */
diff --git a/intern/cycles/util/util_path.cpp b/intern/cycles/util/util_path.cpp
index f9c3b4bb139..bae5d5bd6d1 100644
--- a/intern/cycles/util/util_path.cpp
+++ b/intern/cycles/util/util_path.cpp
@@ -45,6 +45,7 @@ OIIO_NAMESPACE_USING
 #  include <shlwapi.h>
 #endif
 
+#include "util/util_map.h"
 #include "util/util_windows.h"
 
 CCL_NAMESPACE_BEGIN
@@ -768,68 +769,180 @@ bool path_remove(const string& path)
 	return remove(path.c_str()) == 0;
 }
 
-static string line_directive(const string& base, const string& path, int line)
+struct SourceReplaceState {
+	typedef map<string, string> ProcessedMapping;
+	/* Base director for all relative include headers. */
+	string base;
+	/* Result of processed files. */
+	ProcessedMapping processed_files;
+	/* Set of files which are considered "precompiled" and which are replaced
+	 * with and empty string on a subsequent occurrence in include statement.
+	 */
+	set<string> precompiled_headers;
+};
+
+static string path_source_replace_includes_recursive(
+        const string& source,
+        const string& source_filepath,
+        SourceReplaceState *state);
+
+static string line_directive(const SourceReplaceState& state,
+                             const string& path,
+                             const int line)
 {
-	string escaped_path = path;
+	string unescaped_path = path;
 	/* First we make path relative. */
-	if(string_startswith(escaped_path, base.c_str())) {
-		const string base_file = path_filename(base);
-		const size_t base_len = base.length();
-		escaped_path = base_file + escaped_path.substr(base_len,
-		                                               escaped_path.length() - base_len);
+	if(string_startswith(unescaped_path, state.base.c_str())) {
+		const string base_file = path_filename(state.base);
+		const size_t base_len = state.base.length();
+		unescaped_path = base_file +
+		        unescaped_path.substr(base_len,
+		                            unescaped_path.length() - base_len);
 	}
 	/* Second, we replace all unsafe characters. */
-	string_replace(escaped_path, "\"", "\\\"");
-	string_replace(escaped_path, "\'", "\\\'");
-	string_replace(escaped_path, "\?", "\\\?");
-	string_replace(escaped_path, "\\", "\\\\");
+	const size_t length = unescaped_path.length();
+	string escaped_path = "";
+	for(size_t i = 0; i < length; ++i) {
+		const char ch = unescaped_path[i];
+		if(strchr("\"\'\?\\", ch) != NULL) {
+			escaped_path += "\\";
+		}
+		escaped_path += ch;
+	}
+	/* TODO(sergey): Check whether using std::to_string combined with several
+	 * concatenation operations is any faster.
+	 */
 	return string_printf("#line %d \"%s\"", line, escaped_path.c_str());
 }
 
+static string path_source_handle_preprocessor(
+        const string& preprocessor_line,
+        const string& source_filepath,
+        const size_t line_number,
+        SourceReplaceState *state)
+{
+	string result = preprocessor_line;
+	string token = string_strip(
+	        preprocessor_line.substr(1, preprocessor_line.size() - 1));
+	if(string_startswith(token, "include")) {
+		token = string_strip(token.substr(7, token.size() - 7));
+		if(token[0] == '"') {
+			const size_t n_start = 1;
+			const size_t n_end = token.find("\"", n_start);
+			const string filename = token.substr(n_start, n_end - n_start);
+			const bool is_precompiled = string_endswith(token, "// PRECOMPILED");
+			string filepath = path_join(state->base, filename);
+			if(!path_exists(filepath)) {
+				filepath = path_join(path_dirname(source_filepath),
+				                     filename);
+			}
+			if(is_precompiled) {
+				state->precompiled_headers.insert(filepath);
+			}
+			string text;
+			if(path_read_text(filepath, text)) {
+				text = path_source_replace_includes_recursive(
+				        text, filepath, state);
+				/* Use line directives for better error messages. */
+				result = line_directive(*state, filepath, 1) + "\n"
+				     + text + "\n"
+				     + line_directive(*state, source_filepath, line_number + 1);
+			}
+		}
+	}
+	return result;
+}
+
+/* Our own little c preprocessor that replaces #includes with the file
+ * contents, to work around issue of OpenCL drivers not supporting
+ * include paths with spaces in them.
+ */
 static string path_source_replace_includes_recursive(
-        const string& base,
         const string& source,
-        const string& source_filepath)
+        const string& source_filepath,
+        SourceReplaceState *state)
 {
-	/* Our own little c preprocessor that replaces #includes with the file
-	 * contents, to work around issue of OpenCL drivers not supporting
-	 * include paths with spaces in them.
+	/* Try to re-use processed file without spending time on replacing all
+	 * include directives again.
 	 */
-
+	SourceReplaceState::ProcessedMapping::iterator replaced_file =
+	        state->processed_files.find(source_filepath);
+	if(replaced_file != state->processed_files.end()) {
+		if(state->precompiled_headers.find(source_filepath) !=
+		        state->precompiled_headers.end()) {
+			return "";
+		}
+		return replaced_file->second;
+	}
+	/* Perform full file processing. */
 	string result = "";
-	vector<string> lines;
-	string_split(lines, source, "\n", false);
-
-	for(size_t i = 0; i < lines.size(); ++i) {
-		string line = lines[i];
-		if(line[0] == '#') {
-			string token = string_strip(line.substr(1, line.size() - 1));
-			if(string_startswith(token, "include")) {
-				token = string_strip(token.substr(7, token.size() - 7));
-				if(token[0] == '"') {
-					const size_t n_start = 1;
-					const size_t n_end = token.find("\"", n_start);
-					const string filename = token.substr(n_start, n_end - n_start);
-					string filepath = path_join(base, filename);
-					if(!path_exists(filepath)) {
-						filepath = path_join(path_dirname(source_filepath),
-						                     filename);
-					}
-					string text;
-					if(path_read_text(filepath, text)) {
-						text = path_source_replace_includes_recursive(
-						        base, text, filepath);
-						/* Use line directives for better error messages. */
-						line = line_directive(base, filepath, 1)
-						     + token.replace(0, n_end + 1, "\n" + text + "\n")
-						     + line_directive(base, source_filepath, i + 1);
-					}
-				}
+	const size_t source_length = source.length();
+	size_t index = 0;
+	/* Information about where we are in the source. */
+	size_t line_number = 0, column_number = 1;
+	/* Currently gathered non-preprocessor token.
+	 * Store as start/length rather than token itself to avoid overhead of
+	 * memory re-allocations on each character concatenation.
+	 */
+	size_t token_start = 0, token_length = 0;
+	/* Denotes whether we're inside of preprocessor line, together with
+	 * preprocessor line itself.
+	 *
+	 * TODO(sergey): Investigate whether using token start/end position
+	 * gives measurable speedup.
+	 */
+	bool inside_preprocessor = false;
+	string preprocessor_line = "";
+	/* Actual loop over the whole source. */
+	while(index < source_length) {
+		const char ch = source[index];
+		if(ch == '\n') {
+			if(inside_preprocessor) {
+				result += path_source_handle_preprocessor(preprocessor_line,
+				                                          source_filepath,
+				                                          line_number,
+				                                          state);
+				/* Start gathering net part of the token. */
+				token_start = index;
+				token_length = 0;
+			}
+			inside_preprocessor = false;
+			preprocessor_line = "";
+			column_number = 0;
+			++line_number;
+		}
+		else if(ch == '#' && column_number == 1 && !inside_preprocessor) {
+			/* Append all possible non-preprocessor token to the result. */
+			if(token_length != 0) {
+				result.append(source, token_start, token_length);
+				token_start = index;
+				token_length = 0;
 			}
+			inside_preprocessor = true;
+		}
+		if(inside_preprocessor) {
+			preprocessor_line += ch;
+		}
+		else {
+			++token_length;
 		}
-		result += line + "\n";
+		++index;
+		++column_number;
 	}
-
+	/* Append possible tokens which happened before special events handled
+	 * above.
+	 */
+	if(token_length != 0) {
+		result.append(source, token_start, token_length);
+	}
+	if(inside_preprocessor) {
+		result += path_source_handle_preprocessor(preprocessor_line,
+		                                          source_filepath,
+		                                          line_number,
+		                                          state);
+	}
+	/* Store result for further reuse. */
+	state->processed_files[source_filepath] = result;
 	return result;
 }
 
@@ -837,10 +950,12 @@ string path_source_replace_includes(const string& source,
                                     const string& path,
                                     const string& source_filename)
 {
+	SourceReplaceState state;
+	state.base = path;
 	return path_source_replace_includes_recursive(
-	        path,
 	        source,
-	        path_join(path, source_filename));
+	        path_join(path, source_filename),
+	        &state);
 }
 
 FILE *path_fopen(const string& path, const string& mode)
diff --git a/intern/cycles/util/util_progress.h b/intern/cycles/util/util_progress.h
index cd4fe52fdc9..134383e88db 100644
--- a/intern/cycles/util/util_progress.h
+++ b/intern/cycles/util/util_progress.h
@@ -41,6 +41,7 @@ public:
 		denoised_tiles = 0;
 		start_time = time_dt();
 		render_start_time = time_dt();
+		end_time = 0.0;
 		status = "Initializing";
 		substatus = "";
 		sync_status = "";
@@ -80,6 +81,7 @@ public:
 		denoised_tiles = 0;
 		start_time = time_dt();
 		render_start_time = time_dt();
+		end_time = 0.0;
 		status = "Initializing";
 		substatus = "";
 		sync_status = "";
@@ -146,6 +148,7 @@ public:
 		thread_scoped_lock lock(progress_mutex);
 
 		start_time = time_dt();
+		end_time = 0.0;
 	}
 
 	void set_render_start_time()
@@ -169,8 +172,15 @@ public:
 	{
 		thread_scoped_lock lock(progress_mutex);
 
-		total_time_ = time_dt() - start_time;
-		render_time_ = time_dt() - render_start_time;
+		double time = (end_time > 0) ? end_time : time_dt();
+
+		total_time_ = time - start_time;
+		render_time_ = time - render_start_time;
+	}
+
+	void set_end_time()
+	{
+		end_time = time_dt();
 	}
 
 	void reset_sample()
@@ -337,6 +347,8 @@ protected:
 	int rendered_tiles, denoised_tiles;
 
 	double start_time, render_start_time;
+	/* End time written when render is done, so it doesn't keep increasing on redraws. */
+	double end_time;
 
 	string status;
 	string substatus;
diff --git a/intern/cycles/util/util_simd.h b/intern/cycles/util/util_simd.h
index 587febe3e52..58b3d267266 100644
--- a/intern/cycles/util/util_simd.h
+++ b/intern/cycles/util/util_simd.h
@@ -18,19 +18,38 @@
 #ifndef __UTIL_SIMD_TYPES_H__
 #define __UTIL_SIMD_TYPES_H__
 
+#ifndef __KERNEL_GPU__
+
 #include <limits>
 
 #include "util/util_debug.h"
-#include "util/util_types.h"
+#include "util/util_defines.h"
+
+/* SSE Intrinsics includes
+ *
+ * We assume __KERNEL_SSEX__ flags to have been defined at this point */
+
+/* SSE intrinsics headers */
+#ifndef FREE_WINDOWS64
+
+#ifdef _MSC_VER
+#  include <intrin.h>
+#elif (defined(__x86_64__) || defined(__i386__))
+#  include <x86intrin.h>
+#endif
+
+#else
+
+/* MinGW64 has conflicting declarations for these SSE headers in <windows.h>.
+ * Since we can't avoid including <windows.h>, better only include that */
+#include "util/util_windows.h"
+
+#endif
 
 CCL_NAMESPACE_BEGIN
 
 #ifdef __KERNEL_SSE2__
 
-struct sseb;
-struct ssei;
-struct ssef;
-
 extern const __m128 _mm_lookupmask_ps[16];
 
 /* Special Types */
@@ -328,12 +347,12 @@ __forceinline size_t __bscf(size_t& v)
 
 #endif /* _WIN32 */
 
-static const unsigned int BITSCAN_NO_BIT_SET_32 = 32;
-static const size_t       BITSCAN_NO_BIT_SET_64 = 64;
+/* Test __KERNEL_SSE41__ for MSVC which does not define __SSE4_1__, and test
+ * __SSE4_1__ to avoid OpenImageIO conflicts with our emulation macros on other
+ * platforms when compiling code outside the kernel. */
+#if !(defined(__KERNEL_SSE41__) || defined(__SSE4_1__) || defined(__SSE4_2__))
 
-#ifdef __KERNEL_SSE3__
-/* Emulation of SSE4 functions with SSE3 */
-#  ifndef __KERNEL_SSE41__
+/* Emulation of SSE4 functions with SSE2 */
 
 #define _MM_FROUND_TO_NEAREST_INT    0x00
 #define _MM_FROUND_TO_NEG_INF        0x01
@@ -342,50 +361,50 @@ static const size_t       BITSCAN_NO_BIT_SET_64 = 64;
 #define _MM_FROUND_CUR_DIRECTION     0x04
 
 #undef _mm_blendv_ps
-#define _mm_blendv_ps __emu_mm_blendv_ps
-__forceinline __m128 _mm_blendv_ps( __m128 value, __m128 input, __m128 mask ) { 
-    return _mm_or_ps(_mm_and_ps(mask, input), _mm_andnot_ps(mask, value)); 
+#define _mm_blendv_ps _mm_blendv_ps_emu
+__forceinline __m128 _mm_blendv_ps_emu( __m128 value, __m128 input, __m128 mask)
+{
+    __m128i isignmask = _mm_set1_epi32(0x80000000);
+    __m128 signmask = _mm_castsi128_ps(isignmask);
+    __m128i iandsign = _mm_castps_si128(_mm_and_ps(mask, signmask));
+    __m128i icmpmask = _mm_cmpeq_epi32(iandsign, isignmask);
+    __m128 cmpmask = _mm_castsi128_ps(icmpmask);
+    return _mm_or_ps(_mm_and_ps(cmpmask, input), _mm_andnot_ps(cmpmask, value));
 }
 
 #undef _mm_blend_ps
-#define _mm_blend_ps __emu_mm_blend_ps
-__forceinline __m128 _mm_blend_ps( __m128 value, __m128 input, const int mask ) { 
+#define _mm_blend_ps _mm_blend_ps_emu
+__forceinline __m128 _mm_blend_ps_emu( __m128 value, __m128 input, const int mask)
+{
     assert(mask < 0x10); return _mm_blendv_ps(value, input, _mm_lookupmask_ps[mask]); 
 }
 
 #undef _mm_blendv_epi8
-#define _mm_blendv_epi8 __emu_mm_blendv_epi8
-__forceinline __m128i _mm_blendv_epi8( __m128i value, __m128i input, __m128i mask ) { 
+#define _mm_blendv_epi8 _mm_blendv_epi8_emu
+__forceinline __m128i _mm_blendv_epi8_emu( __m128i value, __m128i input, __m128i mask)
+{
     return _mm_or_si128(_mm_and_si128(mask, input), _mm_andnot_si128(mask, value)); 
 }
 
-#undef _mm_mullo_epi32
-#define _mm_mullo_epi32 __emu_mm_mullo_epi32
-__forceinline __m128i _mm_mullo_epi32( __m128i value, __m128i input ) {
-  __m128i rvalue;
-  char* _r = (char*)(&rvalue + 1);
-  char* _v = (char*)(& value + 1);
-  char* _i = (char*)(& input + 1);
-  for( ssize_t i = -16 ; i != 0 ; i += 4 ) *((int32_t*)(_r + i)) = *((int32_t*)(_v + i))*  *((int32_t*)(_i + i));
-  return rvalue;
-}
-
 #undef _mm_min_epi32
-#define _mm_min_epi32 __emu_mm_min_epi32
-__forceinline __m128i _mm_min_epi32( __m128i value, __m128i input ) { 
+#define _mm_min_epi32 _mm_min_epi32_emu
+__forceinline __m128i _mm_min_epi32_emu( __m128i value, __m128i input)
+{
     return _mm_blendv_epi8(input, value, _mm_cmplt_epi32(value, input)); 
 }
 
 #undef _mm_max_epi32
-#define _mm_max_epi32 __emu_mm_max_epi32
-__forceinline __m128i _mm_max_epi32( __m128i value, __m128i input ) { 
+#define _mm_max_epi32 _mm_max_epi32_emu
+__forceinline __m128i _mm_max_epi32_emu( __m128i value, __m128i input)
+{
     return _mm_blendv_epi8(value, input, _mm_cmplt_epi32(value, input)); 
 }
 
 #undef _mm_extract_epi32
-#define _mm_extract_epi32 __emu_mm_extract_epi32
-__forceinline int _mm_extract_epi32( __m128i input, const int index ) {
-  switch ( index ) {
+#define _mm_extract_epi32 _mm_extract_epi32_emu
+__forceinline int _mm_extract_epi32_emu( __m128i input, const int index)
+{
+  switch(index) {
   case 0: return _mm_cvtsi128_si32(input);
   case 1: return _mm_cvtsi128_si32(_mm_shuffle_epi32(input, _MM_SHUFFLE(1, 1, 1, 1)));
   case 2: return _mm_cvtsi128_si32(_mm_shuffle_epi32(input, _MM_SHUFFLE(2, 2, 2, 2)));
@@ -395,27 +414,26 @@ __forceinline int _mm_extract_epi32( __m128i input, const int index ) {
 }
 
 #undef _mm_insert_epi32
-#define _mm_insert_epi32 __emu_mm_insert_epi32
-__forceinline __m128i _mm_insert_epi32( __m128i value, int input, const int index ) { 
+#define _mm_insert_epi32 _mm_insert_epi32_emu
+__forceinline __m128i _mm_insert_epi32_emu( __m128i value, int input, const int index)
+{
     assert(index >= 0 && index < 4); ((int*)&value)[index] = input; return value; 
 }
 
-#undef _mm_extract_ps
-#define _mm_extract_ps __emu_mm_extract_ps
-__forceinline int _mm_extract_ps( __m128 input, const int index ) {
-  int32_t* ptr = (int32_t*)&input; return ptr[index];
-}
-
 #undef _mm_insert_ps
-#define _mm_insert_ps __emu_mm_insert_ps
-__forceinline __m128 _mm_insert_ps( __m128 value, __m128 input, const int index )
-{ assert(index < 0x100); ((float*)&value)[(index >> 4)&0x3] = ((float*)&input)[index >> 6]; return _mm_andnot_ps(_mm_lookupmask_ps[index&0xf], value); }
+#define _mm_insert_ps _mm_insert_ps_emu
+__forceinline __m128 _mm_insert_ps_emu( __m128 value, __m128 input, const int index)
+{
+	assert(index < 0x100);
+	((float*)&value)[(index >> 4)&0x3] = ((float*)&input)[index >> 6];
+	return _mm_andnot_ps(_mm_lookupmask_ps[index&0xf], value);
+}
 
 #undef _mm_round_ps
-#define _mm_round_ps __emu_mm_round_ps
-__forceinline __m128 _mm_round_ps( __m128 value, const int flags )
+#define _mm_round_ps _mm_round_ps_emu
+__forceinline __m128 _mm_round_ps_emu( __m128 value, const int flags)
 {
-  switch ( flags )
+  switch(flags)
   {
   case _MM_FROUND_TO_NEAREST_INT: return _mm_cvtepi32_ps(_mm_cvtps_epi32(value));
   case _MM_FROUND_TO_NEG_INF    : return _mm_cvtepi32_ps(_mm_cvtps_epi32(_mm_add_ps(value, _mm_set1_ps(-0.5f))));
@@ -425,57 +443,7 @@ __forceinline __m128 _mm_round_ps( __m128 value, const int flags )
   return value;
 }
 
-#    ifdef _M_X64
-#undef _mm_insert_epi64
-#define _mm_insert_epi64 __emu_mm_insert_epi64
-__forceinline __m128i _mm_insert_epi64( __m128i value, __int64 input, const int index ) { 
-    assert(size_t(index) < 4); ((__int64*)&value)[index] = input; return value; 
-}
-
-#undef _mm_extract_epi64
-#define _mm_extract_epi64 __emu_mm_extract_epi64
-__forceinline __int64 _mm_extract_epi64( __m128i input, const int index ) { 
-    assert(size_t(index) < 2); 
-    return index == 0 ? _mm_cvtsi128_si64x(input) : _mm_cvtsi128_si64x(_mm_unpackhi_epi64(input, input)); 
-}
-#    endif
-
-#  endif
-
-#undef _mm_fabs_ps
-#define _mm_fabs_ps(x) _mm_and_ps(x, _mm_castsi128_ps(_mm_set1_epi32(0x7fffffff)))
-
-/* Return a __m128 with every element set to the largest element of v. */
-ccl_device_inline __m128 _mm_hmax_ps(__m128 v)
-{
-  /* v[0, 1, 2, 3] => [0, 1, 0, 1] and [2, 3, 2, 3] => v[max(0, 2), max(1, 3), max(0, 2), max(1, 3)] */
-  v = _mm_max_ps(_mm_movehl_ps(v, v), _mm_movelh_ps(v, v));
-  /* v[max(0, 2), max(1, 3), max(0, 2), max(1, 3)] => [4 times max(1, 3)] and [4 times max(0, 2)] => v[4 times max(0, 1, 2, 3)] */
-  v = _mm_max_ps(_mm_movehdup_ps(v), _mm_moveldup_ps(v));
-  return v;
-}
-
-/* Return the sum of the four elements of x. */
-ccl_device_inline float _mm_hsum_ss(__m128 x)
-{
-    __m128 a = _mm_movehdup_ps(x);
-    __m128 b = _mm_add_ps(x, a);
-    return _mm_cvtss_f32(_mm_add_ss(_mm_movehl_ps(a, b), b));
-}
-
-/* Return a __m128 with every element set to the sum of the four elements of x. */
-ccl_device_inline __m128 _mm_hsum_ps(__m128 x)
-{
-    x = _mm_hadd_ps(x, x);
-    x = _mm_hadd_ps(x, x);
-    return x;
-}
-
-/* Replace elements of x with zero where mask isn't set. */
-#undef _mm_mask_ps
-#define _mm_mask_ps(x, mask) _mm_blendv_ps(_mm_setzero_ps(), x, mask)
-
-#endif
+#endif /* !(defined(__KERNEL_SSE41__) || defined(__SSE4_1__) || defined(__SSE4_2__)) */
 
 #else  /* __KERNEL_SSE2__ */
 
@@ -496,13 +464,19 @@ ccl_device_inline int bitscan(int value)
 
 #endif /* __KERNEL_SSE2__ */
 
+/* quiet unused define warnings */
+#if defined(__KERNEL_SSE2__)  || \
+	defined(__KERNEL_SSE3__)  || \
+	defined(__KERNEL_SSSE3__) || \
+	defined(__KERNEL_SSE41__) || \
+	defined(__KERNEL_AVX__)   || \
+	defined(__KERNEL_AVX2__)
+	/* do nothing */
+#endif
+
 CCL_NAMESPACE_END
 
-#include "util/util_math.h"
-#include "util/util_sseb.h"
-#include "util/util_ssei.h"
-#include "util/util_ssef.h"
-#include "util/util_avxf.h"
+#endif /* __KERNEL_GPU__ */
 
 #endif /* __UTIL_SIMD_TYPES_H__ */
 
diff --git a/intern/cycles/util/util_sseb.h b/intern/cycles/util/util_sseb.h
index 6e669701f3b..93c22aafdcd 100644
--- a/intern/cycles/util/util_sseb.h
+++ b/intern/cycles/util/util_sseb.h
@@ -22,6 +22,9 @@ CCL_NAMESPACE_BEGIN
 
 #ifdef __KERNEL_SSE2__
 
+struct ssei;
+struct ssef;
+
 /*! 4-wide SSE bool type. */
 struct sseb
 {
diff --git a/intern/cycles/util/util_ssef.h b/intern/cycles/util/util_ssef.h
index cf99a08efae..bb007ff84a9 100644
--- a/intern/cycles/util/util_ssef.h
+++ b/intern/cycles/util/util_ssef.h
@@ -22,6 +22,9 @@ CCL_NAMESPACE_BEGIN
 
 #ifdef __KERNEL_SSE2__
 
+struct sseb;
+struct ssef;
+
 /*! 4-wide SSE float type. */
 struct ssef
 {
diff --git a/intern/cycles/util/util_ssei.h b/intern/cycles/util/util_ssei.h
index 5f62569268c..ef2a9e68b7d 100644
--- a/intern/cycles/util/util_ssei.h
+++ b/intern/cycles/util/util_ssei.h
@@ -22,6 +22,9 @@ CCL_NAMESPACE_BEGIN
 
 #ifdef __KERNEL_SSE2__
 
+struct sseb;
+struct ssef;
+
 /*! 4-wide SSE integer type. */
 struct ssei
 {
@@ -234,8 +237,10 @@ __forceinline size_t select_max(const sseb& valid, const ssei& v) { const ssei a
 
 #else
 
-__forceinline int reduce_min(const ssei& v) { return min(min(v[0],v[1]),min(v[2],v[3])); }
-__forceinline int reduce_max(const ssei& v) { return max(max(v[0],v[1]),max(v[2],v[3])); }
+__forceinline int ssei_min(int a, int b) { return (a < b)? a: b; }
+__forceinline int ssei_max(int a, int b) { return (a > b)? a: b; }
+__forceinline int reduce_min(const ssei& v) { return ssei_min(ssei_min(v[0],v[1]),ssei_min(v[2],v[3])); }
+__forceinline int reduce_max(const ssei& v) { return ssei_max(ssei_max(v[0],v[1]),ssei_max(v[2],v[3])); }
 __forceinline int reduce_add(const ssei& v) { return v[0]+v[1]+v[2]+v[3]; }
 
 #endif
diff --git a/intern/cycles/util/util_stats.h b/intern/cycles/util/util_stats.h
index baba549753d..7667f58eb7d 100644
--- a/intern/cycles/util/util_stats.h
+++ b/intern/cycles/util/util_stats.h
@@ -30,7 +30,7 @@ public:
 
 	void mem_alloc(size_t size) {
 		atomic_add_and_fetch_z(&mem_used, size);
-		atomic_update_max_z(&mem_peak, mem_used);
+		atomic_fetch_and_update_max_z(&mem_peak, mem_used);
 	}
 
 	void mem_free(size_t size) {
diff --git a/intern/cycles/util/util_task.cpp b/intern/cycles/util/util_task.cpp
index fb0c34e1dc4..6ed97b0e0a6 100644
--- a/intern/cycles/util/util_task.cpp
+++ b/intern/cycles/util/util_task.cpp
@@ -206,9 +206,9 @@ void TaskScheduler::init(int num_threads)
 		threads.resize(num_threads);
 
 		const int num_groups = system_cpu_group_count();
-		unsigned short num_process_groups;
+		unsigned short num_process_groups = 0;
 		vector<unsigned short> process_groups;
-		int current_group_threads;
+		int current_group_threads = 0;
 		if(num_groups > 1) {
 			process_groups.resize(num_groups);
 			num_process_groups = system_cpu_process_groups(num_groups, 
diff --git a/intern/cycles/util/util_time.h b/intern/cycles/util/util_time.h
index 65798244111..f03aa590e9b 100644
--- a/intern/cycles/util/util_time.h
+++ b/intern/cycles/util/util_time.h
@@ -37,7 +37,7 @@ public:
 	~scoped_timer()
 	{
 		if(value_ != NULL) {
-			*value_ = time_dt() - time_start_;
+			*value_ = get_time();
 		}
 	}
 
@@ -46,6 +46,11 @@ public:
 		return time_start_;
 	}
 
+	double get_time() const
+	{
+		return time_dt() - time_start_;
+	}
+
 protected:
 	double *value_;
 	double time_start_;
diff --git a/intern/cycles/util/util_types.h b/intern/cycles/util/util_types.h
index a5d1d7152d5..aabca6c81fc 100644
--- a/intern/cycles/util/util_types.h
+++ b/intern/cycles/util/util_types.h
@@ -21,72 +21,18 @@
 #  include <stdlib.h>
 #endif
 
-/* Bitness */
+/* Standard Integer Types */
 
-#if defined(__ppc64__) || defined(__PPC64__) || defined(__x86_64__) || defined(__ia64__) || defined(_M_X64)
-#  define __KERNEL_64_BIT__
+#if !defined(__KERNEL_GPU__) && !defined(_WIN32)
+#  include <stdint.h>
 #endif
 
-/* Qualifiers for kernel code shared by CPU and GPU */
-
-#ifndef __KERNEL_GPU__
-#  define ccl_device static inline
-#  define ccl_device_noinline static
-#  define ccl_global
-#  define ccl_constant
-#  define ccl_local
-#  define ccl_local_param
-#  define ccl_private
-#  define ccl_restrict __restrict
-#  define __KERNEL_WITH_SSE_ALIGN__
-
-#  if defined(_WIN32) && !defined(FREE_WINDOWS)
-#    define ccl_device_inline static __forceinline
-#    define ccl_device_forceinline static __forceinline
-#    define ccl_align(...) __declspec(align(__VA_ARGS__))
-#    ifdef __KERNEL_64_BIT__
-#      define ccl_try_align(...) __declspec(align(__VA_ARGS__))
-#    else  /* __KERNEL_64_BIT__ */
-#      undef __KERNEL_WITH_SSE_ALIGN__
-/* No support for function arguments (error C2719). */
-#      define ccl_try_align(...)
-#    endif  /* __KERNEL_64_BIT__ */
-#    define ccl_may_alias
-#    define ccl_always_inline __forceinline
-#    define ccl_never_inline __declspec(noinline)
-#    define ccl_maybe_unused
-#  else  /* _WIN32 && !FREE_WINDOWS */
-#    define ccl_device_inline static inline __attribute__((always_inline))
-#    define ccl_device_forceinline static inline __attribute__((always_inline))
-#    define ccl_align(...) __attribute__((aligned(__VA_ARGS__)))
-#    ifndef FREE_WINDOWS64
-#      define __forceinline inline __attribute__((always_inline))
-#    endif
-#    define ccl_try_align(...) __attribute__((aligned(__VA_ARGS__)))
-#    define ccl_may_alias __attribute__((__may_alias__))
-#    define ccl_always_inline __attribute__((always_inline))
-#    define ccl_never_inline __attribute__((noinline))
-#    define ccl_maybe_unused __attribute__((used))
-#  endif  /* _WIN32 && !FREE_WINDOWS */
-
-/* Use to suppress '-Wimplicit-fallthrough' (in place of 'break'). */
-#  if defined(__GNUC__) && (__GNUC__ >= 7)  /* gcc7.0+ only */
-#    define ATTR_FALLTHROUGH __attribute__((fallthrough))
-#  else
-#    define ATTR_FALLTHROUGH ((void)0)
-#  endif
-#endif  /* __KERNEL_GPU__ */
-
-/* Standard Integer Types */
+#include "util/util_defines.h"
 
 #ifndef __KERNEL_GPU__
-/* int8_t, uint16_t, and friends */
-#  ifndef _WIN32
-#    include <stdint.h>
-#  endif
-/* SIMD Types */
 #  include "util/util_optimization.h"
-#endif  /* __KERNEL_GPU__ */
+#  include "util/util_simd.h"
+#endif
 
 CCL_NAMESPACE_BEGIN
 
@@ -201,65 +147,8 @@ enum ExtensionType {
 	EXTENSION_NUM_TYPES,
 };
 
-/* macros */
-
-/* hints for branch prediction, only use in code that runs a _lot_ */
-#if defined(__GNUC__) && defined(__KERNEL_CPU__)
-#  define LIKELY(x)       __builtin_expect(!!(x), 1)
-#  define UNLIKELY(x)     __builtin_expect(!!(x), 0)
-#else
-#  define LIKELY(x)       (x)
-#  define UNLIKELY(x)     (x)
-#endif
-
-#if defined(__cplusplus) && ((__cplusplus >= 201103L) || (defined(_MSC_VER) && _MSC_VER >= 1800))
-#  define HAS_CPP11_FEATURES
-#endif
-
-#if defined(__GNUC__) || defined(__clang__)
-#  if defined(HAS_CPP11_FEATURES)
-/* Some magic to be sure we don't have reference in the type. */
-template<typename T> static inline T decltype_helper(T x) { return x; }
-#    define TYPEOF(x) decltype(decltype_helper(x))
-#  else
-#    define TYPEOF(x) typeof(x)
-#  endif
-#endif
-
-/* Causes warning:
- * incompatible types when assigning to type 'Foo' from type 'Bar'
- * ... the compiler optimizes away the temp var */
-#ifdef __GNUC__
-#define CHECK_TYPE(var, type)  {  \
-	TYPEOF(var) *__tmp;           \
-	__tmp = (type *)NULL;         \
-	(void)__tmp;                  \
-} (void)0
-
-#define CHECK_TYPE_PAIR(var_a, var_b)  {  \
-	TYPEOF(var_a) *__tmp;                 \
-	__tmp = (typeof(var_b) *)NULL;        \
-	(void)__tmp;                          \
-} (void)0
-#else
-#  define CHECK_TYPE(var, type)
-#  define CHECK_TYPE_PAIR(var_a, var_b)
-#endif
-
-/* can be used in simple macros */
-#define CHECK_TYPE_INLINE(val, type) \
-	((void)(((type)0) != (val)))
-
-
 CCL_NAMESPACE_END
 
-#ifndef __KERNEL_GPU__
-#  include <cassert>
-#  define util_assert(statement)  assert(statement)
-#else
-#  define util_assert(statement)
-#endif
-
 /* Vectorized types declaration. */
 #include "util/util_types_uchar2.h"
 #include "util/util_types_uchar3.h"
@@ -298,5 +187,13 @@ CCL_NAMESPACE_END
 
 #include "util/util_types_vector3_impl.h"
 
+/* SSE types. */
+#ifndef __KERNEL_GPU__
+#  include "util/util_sseb.h"
+#  include "util/util_ssei.h"
+#  include "util/util_ssef.h"
+#  include "util/util_avxf.h"
+#endif
+
 #endif /* __UTIL_TYPES_H__ */
 
diff --git a/intern/ghost/CMakeLists.txt b/intern/ghost/CMakeLists.txt
index e549a48d4b9..31e92c94eed 100644
--- a/intern/ghost/CMakeLists.txt
+++ b/intern/ghost/CMakeLists.txt
@@ -168,10 +168,6 @@ elseif(APPLE AND NOT WITH_X11)
 		)
 	endif()
 
-	if(WITH_CODEC_QUICKTIME)
-		add_definitions(-DWITH_QUICKTIME)
-	endif()
-
 elseif(WITH_X11)
 	list(APPEND INC_SYS
 		${X11_X11_INCLUDE_PATH}
diff --git a/intern/ghost/intern/GHOST_EventPrinter.cpp b/intern/ghost/intern/GHOST_EventPrinter.cpp
index f25f6637cb1..a6adba12152 100644
--- a/intern/ghost/intern/GHOST_EventPrinter.cpp
+++ b/intern/ghost/intern/GHOST_EventPrinter.cpp
@@ -193,16 +193,6 @@ void GHOST_EventPrinter::getKeyString(GHOST_TKey key, char str[32]) const
 	}
 	else if ((key >= GHOST_kKeyNumpad0) && (key <= GHOST_kKeyNumpad9)) {
 		sprintf(str, "Numpad %d", (key - GHOST_kKeyNumpad0));
-#if defined(__sun__) || defined(__sun)
-	}
-	else if (key == 268828432) {   /* solaris keyboards are messed up */
-		/* This should really test XK_F11 but that doesn't work */
-		strcpy(str, "F11");
-	}
-	else if (key == 268828433) {   /* solaris keyboards are messed up */
-		/* This should really test XK_F12 but that doesn't work */
-		strcpy(str, "F12");
-#endif
 	}
 	else if ((key >= GHOST_kKeyF1) && (key <= GHOST_kKeyF24)) {
 		sprintf(str, "F%d", key - GHOST_kKeyF1 + 1);
diff --git a/intern/ghost/intern/GHOST_SystemCocoa.h b/intern/ghost/intern/GHOST_SystemCocoa.h
index b142c2f7194..6802ad42c7b 100644
--- a/intern/ghost/intern/GHOST_SystemCocoa.h
+++ b/intern/ghost/intern/GHOST_SystemCocoa.h
@@ -292,11 +292,6 @@ protected:
 	/** Ignores window size messages (when window is dragged). */
 	bool m_ignoreWindowSizedMessages;
 	
-	/** Stores the mouse cursor delta due to setting a new cursor position
-	 * Needed because cocoa event delta cursor move takes setCursorPosition changes too.
-	 */
-	GHOST_TInt32 m_cursorDelta_x, m_cursorDelta_y;
-	
 	/** Temporarily ignore momentum scroll events */
 	bool m_ignoreMomentumScroll;
 	/** Is the scroll wheel event generated by a multitouch trackpad or mouse? */
diff --git a/intern/ghost/intern/GHOST_SystemCocoa.mm b/intern/ghost/intern/GHOST_SystemCocoa.mm
index 173f59c9c8f..42ccfb06fd9 100644
--- a/intern/ghost/intern/GHOST_SystemCocoa.mm
+++ b/intern/ghost/intern/GHOST_SystemCocoa.mm
@@ -366,8 +366,6 @@ GHOST_SystemCocoa::GHOST_SystemCocoa()
 	char *rstring = NULL;
 
 	m_modifierMask =0;
-	m_cursorDelta_x=0;
-	m_cursorDelta_y=0;
 	m_outsideLoopEventProcessed = false;
 	m_needDelayedApplicationBecomeActiveEventProcessing = false;
 	m_displayManager = new GHOST_DisplayManagerCocoa ();
@@ -644,6 +642,13 @@ GHOST_TSuccess GHOST_SystemCocoa::setMouseCursorPosition(GHOST_TInt32 x, GHOST_T
 
 	CGDisplayMoveCursorToPoint((CGDirectDisplayID)[[[windowScreen deviceDescription] objectForKey:@"NSScreenNumber"] unsignedIntValue], CGPointMake(xf, yf));
 
+	// See https://stackoverflow.com/a/17559012. By default, hardware events
+	// will be suppressed for 500ms after a synthetic mouse event. For unknown
+	// reasons CGEventSourceSetLocalEventsSuppressionInterval does not work,
+	// however calling CGAssociateMouseAndMouseCursorPosition also removes the
+	// delay, even if this is undocumented.
+	CGAssociateMouseAndMouseCursorPosition(true);
+
 	[pool drain];
 	return GHOST_kSuccess;
 }
@@ -1249,27 +1254,6 @@ bool GHOST_SystemCocoa::handleTabletEvent(void *eventPtr)
 	}
 }
 
-#if MAC_OS_X_VERSION_MAX_ALLOWED < 1070
-enum {
-	NSEventPhaseNone = 0,
-	NSEventPhaseBegan = 0x1 << 0,
-	NSEventPhaseStationary = 0x1 << 1,
-	NSEventPhaseChanged = 0x1 << 2,
-	NSEventPhaseEnded = 0x1 << 3,
-	NSEventPhaseCancelled = 0x1 << 4,
-};
-typedef NSUInteger NSEventPhase;
-
-@interface NSEvent (AvailableOn1070AndLater)
-- (BOOL)hasPreciseScrollingDeltas;
-- (CGFloat)scrollingDeltaX;
-- (CGFloat)scrollingDeltaY;
-- (NSEventPhase)momentumPhase;
-- (BOOL)isDirectionInvertedFromDevice;
-- (NSEventPhase)phase;
-@end
-#endif
-
 GHOST_TSuccess GHOST_SystemCocoa::handleMouseEvent(void *eventPtr)
 {
 	NSEvent *event = (NSEvent *)eventPtr;
@@ -1354,9 +1338,8 @@ GHOST_TSuccess GHOST_SystemCocoa::handleMouseEvent(void *eventPtr)
 					case GHOST_kGrabWrap: //Wrap cursor at area/window boundaries
 					{
 						NSPoint mousePos = [cocoawindow mouseLocationOutsideOfEventStream];
-						GHOST_TInt32 x_mouse= mousePos.x;
-						GHOST_TInt32 y_mouse= mousePos.y;
-						GHOST_TInt32 x_accum, y_accum, x_cur, y_cur, x, y;
+						GHOST_TInt32 x_mouse = mousePos.x;
+						GHOST_TInt32 y_mouse = mousePos.y;
 						GHOST_Rect bounds, windowBounds, correctedBounds;
 
 						/* fallback to window bounds */
@@ -1370,29 +1353,26 @@ GHOST_TSuccess GHOST_SystemCocoa::handleMouseEvent(void *eventPtr)
 						correctedBounds.m_b = (windowBounds.m_b - windowBounds.m_t) - correctedBounds.m_b;
 						correctedBounds.m_t = (windowBounds.m_b - windowBounds.m_t) - correctedBounds.m_t;
 
-						//Update accumulation counts
+						//Get accumulation from previous mouse warps
+						GHOST_TInt32 x_accum, y_accum;
 						window->getCursorGrabAccum(x_accum, y_accum);
-						x_accum += [event deltaX]-m_cursorDelta_x;
-						y_accum += -[event deltaY]-m_cursorDelta_y; //Strange Apple implementation (inverted coordinates for the deltaY) ...
-						window->setCursorGrabAccum(x_accum, y_accum);
 
 						//Warp mouse cursor if needed
-						x_mouse += [event deltaX]-m_cursorDelta_x;
-						y_mouse += -[event deltaY]-m_cursorDelta_y;
-						correctedBounds.wrapPoint(x_mouse, y_mouse, 2);
-
-						//Compensate for mouse moved event taking cursor position set into account
-						m_cursorDelta_x = x_mouse-mousePos.x;
-						m_cursorDelta_y = y_mouse-mousePos.y;
+						GHOST_TInt32 warped_x_mouse = x_mouse;
+						GHOST_TInt32 warped_y_mouse = y_mouse;
+						correctedBounds.wrapPoint(warped_x_mouse, warped_y_mouse, 4);
 
 						//Set new cursor position
-						window->clientToScreenIntern(x_mouse, y_mouse, x_cur, y_cur);
-						setMouseCursorPosition(x_cur, y_cur); /* wrap */
+						if (x_mouse != warped_x_mouse || y_mouse != warped_y_mouse) {
+							GHOST_TInt32 warped_x, warped_y;
+							window->clientToScreenIntern(warped_x_mouse, warped_y_mouse, warped_x, warped_y);
+							setMouseCursorPosition(warped_x, warped_y); /* wrap */
+							window->setCursorGrabAccum(x_accum + (x_mouse - warped_x_mouse), y_accum + (y_mouse - warped_y_mouse));
+						}
 
-						//Post event
-						window->getCursorGrabInitPos(x_cur, y_cur);
-						window->screenToClientIntern(x_cur, y_cur, x_cur, y_cur);
-						window->clientToScreenIntern(x_cur + x_accum, y_cur + y_accum, x, y);
+						//Generate event
+						GHOST_TInt32 x, y;
+						window->clientToScreenIntern(x_mouse + x_accum, y_mouse + y_accum, x, y);
 						pushEvent(new GHOST_EventCursor([event timestamp] * 1000, GHOST_kEventCursorMove, window, x, y));
 						break;
 					}
@@ -1404,9 +1384,6 @@ GHOST_TSuccess GHOST_SystemCocoa::handleMouseEvent(void *eventPtr)
 
 						window->clientToScreenIntern(mousePos.x, mousePos.y, x, y);
 						pushEvent(new GHOST_EventCursor([event timestamp] * 1000, GHOST_kEventCursorMove, window, x, y));
-
-						m_cursorDelta_x=0;
-						m_cursorDelta_y=0; //Mouse motion occurred between two cursor warps, so we can reset the delta counter
 						break;
 					}
 				}
@@ -1461,7 +1438,6 @@ GHOST_TSuccess GHOST_SystemCocoa::handleMouseEvent(void *eventPtr)
 					double dx;
 					double dy;
 
-#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
 					/* with 10.7 nice scrolling deltas are supported */
 					dx = [event scrollingDeltaX];
 					dy = [event scrollingDeltaY];
@@ -1471,29 +1447,6 @@ GHOST_TSuccess GHOST_SystemCocoa::handleMouseEvent(void *eventPtr)
 						dx = [event deltaX];
 						dy = [event deltaY];
 					}
-#else
-					/* trying to pretend you have nice scrolls... */
-					dx = [event deltaX];
-					dy = -[event deltaY];
-					const double deltaMax = 50.0;
-
-					if ((dx == 0) && (dy == 0)) break;
-
-					/* Quadratic acceleration */
-					dx = dx*(fabs(dx) + 0.5);
-					if (dx < 0.0) dx -= 0.5;
-					else          dx += 0.5;
-					if      (dx < -deltaMax) dx = -deltaMax;
-					else if (dx >  deltaMax) dx =  deltaMax;
-
-					dy = dy*(fabs(dy) + 0.5);
-					if (dy < 0.0) dy -= 0.5;
-					else          dy += 0.5;
-					if      (dy < -deltaMax) dy= -deltaMax;
-					else if (dy >  deltaMax) dy=  deltaMax;
-
-					dy = -dy;
-#endif
 					window->clientToScreenIntern(mousePos.x, mousePos.y, x, y);
 
 					pushEvent(new GHOST_EventTrackpad([event timestamp] * 1000, window, GHOST_kTrackpadEventScroll, x, y, dx, dy));
diff --git a/intern/ghost/intern/GHOST_SystemX11.cpp b/intern/ghost/intern/GHOST_SystemX11.cpp
index 30cfac08153..8fff565338f 100644
--- a/intern/ghost/intern/GHOST_SystemX11.cpp
+++ b/intern/ghost/intern/GHOST_SystemX11.cpp
@@ -1601,26 +1601,6 @@ convertXKey(KeySym key)
 	}
 	else if ((key >= XK_F1) && (key <= XK_F24)) {
 		type = GHOST_TKey(key - XK_F1 + int(GHOST_kKeyF1));
-#if defined(__sun) || defined(__sun__) 
-		/* This is a bit of a hack, but it looks like sun
-		 * Used F11 and friends for its special keys Stop,again etc..
-		 * So this little patch enables F11 and F12 to work as expected
-		 * following link has documentation on it:
-		 * http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4734408
-		 * also from /usr/include/X11/Sunkeysym.h
-		 * #define SunXK_F36               0x1005FF10      // Labeled F11
-		 * #define SunXK_F37               0x1005FF11      // Labeled F12
-		 *
-		 *      mein@cs.umn.edu
-		 */
-		
-	}
-	else if (key == 268828432) {
-		type = GHOST_kKeyF11;
-	}
-	else if (key == 268828433) {
-		type = GHOST_kKeyF12;
-#endif
 	}
 	else {
 		switch (key) {
@@ -1714,19 +1694,6 @@ convertXKey(KeySym key)
 			GXMAP(type, XF86XK_AudioForward, GHOST_kKeyMediaLast);
 #endif
 #endif
-
-			/* some extra sun cruft (NICE KEYBOARD!) */
-#ifdef __sun__
-			GXMAP(type, 0xffde,          GHOST_kKeyNumpad1);
-			GXMAP(type, 0xffe0,          GHOST_kKeyNumpad3);
-			GXMAP(type, 0xffdc,          GHOST_kKeyNumpad5);
-			GXMAP(type, 0xffd8,          GHOST_kKeyNumpad7);
-			GXMAP(type, 0xffda,          GHOST_kKeyNumpad9);
-
-			GXMAP(type, 0xffd6,          GHOST_kKeyNumpadSlash);
-			GXMAP(type, 0xffd7,          GHOST_kKeyNumpadAsterisk);
-#endif
-
 			default:
 				type = GHOST_kKeyUnknown;
 				break;
diff --git a/intern/ghost/intern/GHOST_WindowCocoa.h b/intern/ghost/intern/GHOST_WindowCocoa.h
index 5168c48ca2f..9dbc85d91e2 100644
--- a/intern/ghost/intern/GHOST_WindowCocoa.h
+++ b/intern/ghost/intern/GHOST_WindowCocoa.h
@@ -303,8 +303,6 @@ protected:
 
 	GHOST_TabletData m_tablet;
 
-	bool m_lionStyleFullScreen;
-
 	bool m_immediateDraw;
 	bool m_debug_context; // for debug messages during context setup
 };
diff --git a/intern/ghost/intern/GHOST_WindowCocoa.mm b/intern/ghost/intern/GHOST_WindowCocoa.mm
index 97615dcea96..20060ac1267 100644
--- a/intern/ghost/intern/GHOST_WindowCocoa.mm
+++ b/intern/ghost/intern/GHOST_WindowCocoa.mm
@@ -43,14 +43,6 @@
 
 #include <sys/sysctl.h>
 
-#if MAC_OS_X_VERSION_MAX_ALLOWED < 1070
-/* Lion style fullscreen support when building with the 10.6 SDK */
-enum {
-	NSWindowCollectionBehaviorFullScreenPrimary = 1 << 7,
-	NSFullScreenWindowMask = 1 << 14
-};
-#endif
-
 #pragma mark Cocoa window delegate object
 
 @interface CocoaWindowDelegate : NSObject
@@ -511,14 +503,6 @@ enum {
 
 #pragma mark initialization / finalization
 
-#if MAC_OS_X_VERSION_MAX_ALLOWED < 1070
-@interface NSView (NSOpenGLSurfaceResolution)
-- (BOOL)wantsBestResolutionOpenGLSurface;
-- (void)setWantsBestResolutionOpenGLSurface:(BOOL)flag;
-- (NSRect)convertRectToBacking:(NSRect)bounds;
-@end
-#endif
-
 GHOST_WindowCocoa::GHOST_WindowCocoa(
 	GHOST_SystemCocoa *systemCocoa,
 	const STR_String& title,
@@ -537,7 +521,6 @@ GHOST_WindowCocoa::GHOST_WindowCocoa(
 	m_systemCocoa = systemCocoa;
 	m_fullScreen = false;
 	m_immediateDraw = false;
-	m_lionStyleFullScreen = false;
 
 	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
 	
@@ -613,16 +596,6 @@ GHOST_WindowCocoa::GHOST_WindowCocoa(
 	if (state == GHOST_kWindowStateFullScreen)
 		setState(GHOST_kWindowStateFullScreen);
 
-	// Starting with 10.9 (darwin 13.x.x), we can use Lion fullscreen,
-	// since it now has better multi-monitor support
-	// if the screens are spawned, additional screens get useless,
-	// so we only use lionStyleFullScreen when screens have separate spaces
-	
-	if ([NSScreen respondsToSelector:@selector(screensHaveSeparateSpaces)] && [NSScreen screensHaveSeparateSpaces]) {
-		// implies we are on >= OSX 10.9
-		m_lionStyleFullScreen = true;
-	}
-	
 	[pool drain];
 }
 
@@ -760,28 +733,18 @@ void GHOST_WindowCocoa::getClientBounds(GHOST_Rect& bounds) const
 	
 	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
 	
-	if (!m_fullScreen) {
-		NSRect screenSize = [[m_window screen] visibleFrame];
+	NSRect screenSize = [[m_window screen] visibleFrame];
 
-		//Max window contents as screen size (excluding title bar...)
-		NSRect contentRect = [CocoaWindow contentRectForFrameRect:screenSize
-		                      styleMask:(NSTitledWindowMask | NSClosableWindowMask | NSMiniaturizableWindowMask | NSResizableWindowMask)];
+	//Max window contents as screen size (excluding title bar...)
+	NSRect contentRect = [CocoaWindow contentRectForFrameRect:screenSize
+						  styleMask:(NSTitledWindowMask | NSClosableWindowMask | NSMiniaturizableWindowMask | NSResizableWindowMask)];
 
-		rect = [m_window contentRectForFrameRect:[m_window frame]];
-		
-		bounds.m_b = contentRect.size.height - (rect.origin.y -contentRect.origin.y);
-		bounds.m_l = rect.origin.x -contentRect.origin.x;
-		bounds.m_r = rect.origin.x-contentRect.origin.x + rect.size.width;
-		bounds.m_t = contentRect.size.height - (rect.origin.y + rect.size.height -contentRect.origin.y);
-	}
-	else {
-		NSRect screenSize = [[m_window screen] frame];
-		
-		bounds.m_b = screenSize.origin.y + screenSize.size.height;
-		bounds.m_l = screenSize.origin.x;
-		bounds.m_r = screenSize.origin.x + screenSize.size.width;
-		bounds.m_t = screenSize.origin.y;
-	}
+	rect = [m_window contentRectForFrameRect:[m_window frame]];
+	
+	bounds.m_b = contentRect.size.height - (rect.origin.y -contentRect.origin.y);
+	bounds.m_l = rect.origin.x -contentRect.origin.x;
+	bounds.m_r = rect.origin.x-contentRect.origin.x + rect.size.width;
+	bounds.m_t = contentRect.size.height - (rect.origin.y + rect.size.height -contentRect.origin.y);
 	[pool drain];
 }
 
@@ -856,9 +819,6 @@ GHOST_TWindowState GHOST_WindowCocoa::getState() const
 			state = GHOST_kWindowStateNormal;
 		}
 	}
-	else if (m_fullScreen) {
-		state = GHOST_kWindowStateFullScreen;
-	} 
 	else if ([m_window isMiniaturized]) {
 		state = GHOST_kWindowStateMinimized;
 	}
@@ -940,15 +900,12 @@ NSScreen* GHOST_WindowCocoa::getScreen()
 /* called for event, when window leaves monitor to another */
 void GHOST_WindowCocoa::setNativePixelSize(void)
 {
-	/* make sure 10.6 keeps running */
-	if ([m_openGLView respondsToSelector:@selector(setWantsBestResolutionOpenGLSurface:)]) {
-		NSRect backingBounds = [m_openGLView convertRectToBacking:[m_openGLView bounds]];
-		
-		GHOST_Rect rect;
-		getClientBounds(rect);
+	NSRect backingBounds = [m_openGLView convertRectToBacking:[m_openGLView bounds]];
+	
+	GHOST_Rect rect;
+	getClientBounds(rect);
 
-		m_nativePixelSize = (float)backingBounds.size.width / (float)rect.getWidth();
-	}
+	m_nativePixelSize = (float)backingBounds.size.width / (float)rect.getWidth();
 }
 
 /**
@@ -973,35 +930,8 @@ GHOST_TSuccess GHOST_WindowCocoa::setState(GHOST_TWindowState state)
 		{
 			NSUInteger masks = [m_window styleMask];
 
-			if (!m_fullScreen && !(masks & NSFullScreenWindowMask)) {
-				if (m_lionStyleFullScreen) {
-					[m_window toggleFullScreen:nil];
-					break;
-				}
-				NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
-			
-				/* This status change needs to be done before Cocoa call to enter fullscreen mode
-				 * to give window delegate hint not to forward its deactivation to ghost wm that
-				 * doesn't know view/window difference. */
-				m_fullScreen = true;
-
-				/* Disable toggle for Lion style fullscreen */
-				[m_window setCollectionBehavior:NSWindowCollectionBehaviorDefault];
-
-				//10.6 provides Cocoa functions to autoshow menu bar, and to change a window style
-				//Hide menu & dock if on primary screen. else only menu
-				if ([[m_window screen] isEqual:[[NSScreen screens] objectAtIndex:0]]) {
-					[NSApp setPresentationOptions:(NSApplicationPresentationAutoHideDock | NSApplicationPresentationAutoHideMenuBar)];
-				}
-				//Make window borderless and enlarge it
-				[m_window setStyleMask:NSBorderlessWindowMask];
-				[m_window setFrame:[[m_window screen] frame] display:YES];
-				[m_window makeFirstResponder:m_openGLView];
-			
-				//Tell WM of view new size
-				m_systemCocoa->handleWindowEvent(GHOST_kEventWindowSize, this);
-				
-				[pool drain];
+			if (!(masks & NSFullScreenWindowMask)) {
+				[m_window toggleFullScreen:nil];
 			}
 			break;
 		}
@@ -1014,26 +944,6 @@ GHOST_TSuccess GHOST_WindowCocoa::setState(GHOST_TWindowState state)
 				// Lion style fullscreen
 				[m_window toggleFullScreen:nil];
 			}
-			else if (m_fullScreen) {
-				m_fullScreen = false;
-
-				/* Enable toggle for into Lion style fullscreen */
-				[m_window setCollectionBehavior:NSWindowCollectionBehaviorFullScreenPrimary];
-
-				//Exit fullscreen
-				//Show again menu & dock if needed
-				if ([[m_window screen] isEqual:[NSScreen mainScreen]]) {
-					[NSApp setPresentationOptions:NSApplicationPresentationDefault];
-				}
-				//Make window normal and resize it
-				[m_window setStyleMask:(NSTitledWindowMask | NSClosableWindowMask | NSMiniaturizableWindowMask | NSResizableWindowMask)];
-				[m_window setFrame:[[m_window screen] visibleFrame] display:YES];
-				//TODO for 10.6 only : window title is forgotten after the style change
-				[m_window makeFirstResponder:m_openGLView];
-			
-				//Tell WM of view new size
-				m_systemCocoa->handleWindowEvent(GHOST_kEventWindowSize, this);
-			}
 			else if ([m_window isMiniaturized])
 				[m_window deminiaturize:nil];
 			else if ([m_window isZoomed])
@@ -1223,7 +1133,6 @@ GHOST_TSuccess GHOST_WindowCocoa::setProgressBar(float progress)
 	return GHOST_kSuccess;
 }
 
-#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1080
 static void postNotification()
 {
 	NSUserNotification *notification = [[NSUserNotification alloc] init];
@@ -1233,7 +1142,6 @@ static void postNotification()
 	[[NSUserNotificationCenter defaultUserNotificationCenter] deliverNotification:notification];
 	[notification release];
 }
-#endif
 
 GHOST_TSuccess GHOST_WindowCocoa::endProgressBar()
 {
@@ -1248,15 +1156,13 @@ GHOST_TSuccess GHOST_WindowCocoa::endProgressBar()
 	[dockIcon unlockFocus];
 	[NSApp setApplicationIconImage:dockIcon];
 	
-	
-	// With OSX 10.8 and later, we can use notifications to inform the user when the progress reached 100%
-	// Atm. just fire this when the progressbar ends, the behavior is controlled in the NotificationCenter
-	// If Blender is not frontmost window, a message pops up with sound, in any case an entry in notifications
-#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1080
+	// We use notifications to inform the user when the progress reached 100%
+	// Atm. just fire this when the progressbar ends, the behavior is controlled
+	// in the NotificationCenter If Blender is not frontmost window, a message
+	// pops up with sound, in any case an entry in notifications
 	if ([NSUserNotificationCenter respondsToSelector:@selector(defaultUserNotificationCenter)]) {
 		postNotification();
 	}
-#endif
 
 	[dockIcon release];
 	
@@ -1370,9 +1276,6 @@ GHOST_TSuccess GHOST_WindowCocoa::setWindowCursorGrab(GHOST_TGrabCursorMode mode
 			//Make window key if it wasn't to get the mouse move events
 			[m_window makeKeyWindow];
 			
-			//Dissociate cursor position even for warp mode, to allow mouse acceleration to work even when warping the cursor
-			err = CGAssociateMouseAndMouseCursorPosition(false) == kCGErrorSuccess ? GHOST_kSuccess : GHOST_kFailure;
-			
 			[pool drain];
 		}
 	}
@@ -1382,7 +1285,6 @@ GHOST_TSuccess GHOST_WindowCocoa::setWindowCursorGrab(GHOST_TGrabCursorMode mode
 			setWindowCursorVisibility(true);
 		}
 		
-		err = CGAssociateMouseAndMouseCursorPosition(true) == kCGErrorSuccess ? GHOST_kSuccess : GHOST_kFailure;
 		/* Almost works without but important otherwise the mouse GHOST location can be incorrect on exit */
 		setCursorGrabAccum(0, 0);
 		m_cursorGrabBounds.m_l= m_cursorGrabBounds.m_r= -1; /* disable */
diff --git a/intern/ghost/intern/GHOST_WindowWin32.cpp b/intern/ghost/intern/GHOST_WindowWin32.cpp
index fc46164c135..7ac54e5c915 100644
--- a/intern/ghost/intern/GHOST_WindowWin32.cpp
+++ b/intern/ghost/intern/GHOST_WindowWin32.cpp
@@ -890,19 +890,14 @@ void GHOST_WindowWin32::processWin32TabletEvent(WPARAM wParam, LPARAM lParam)
 		if (fpWTPacket) {
 			if (fpWTPacket((HCTX)lParam, wParam, &pkt)) {
 				if (m_tabletData) {
-					switch (pkt.pkCursor) {
-						case 0: /* first device */
-						case 3: /* second device */
+					switch (pkt.pkCursor % 3) { /* % 3 for multiple devices ("DualTrack") */
+						case 0:
 							m_tabletData->Active = GHOST_kTabletModeNone; /* puck - not yet supported */
 							break;
 						case 1:
-						case 4:
-						case 7:
 							m_tabletData->Active = GHOST_kTabletModeStylus; /* stylus */
 							break;
 						case 2:
-						case 5:
-						case 8:
 							m_tabletData->Active = GHOST_kTabletModeEraser; /* eraser */
 							break;
 					}
diff --git a/intern/ghost/intern/GHOST_WindowX11.cpp b/intern/ghost/intern/GHOST_WindowX11.cpp
index 2019f58251f..9e019b233f6 100644
--- a/intern/ghost/intern/GHOST_WindowX11.cpp
+++ b/intern/ghost/intern/GHOST_WindowX11.cpp
@@ -59,10 +59,6 @@
 //For DPI value
 #include <X11/Xresource.h>
 
-#if defined(__sun__) || defined(__sun) || defined(__sparc) || defined(__sparc__) || defined(_AIX)
-#  include <strings.h>
-#endif
-
 #include <cstring>
 #include <cstdio>
 
diff --git a/intern/guardedalloc/MEM_guardedalloc.h b/intern/guardedalloc/MEM_guardedalloc.h
index 05a98c1a4e5..f6048a04cf3 100644
--- a/intern/guardedalloc/MEM_guardedalloc.h
+++ b/intern/guardedalloc/MEM_guardedalloc.h
@@ -225,7 +225,7 @@ public:                                                                       \
 			MEM_freeN(mem);                                                   \
 	}                                                                         \
 
-#if defined __GNUC__ || defined __sun
+#if defined __GNUC__
 #  define OBJECT_GUARDED_NEW(type, args ...) \
 	new(MEM_mallocN(sizeof(type), __func__)) type(args)
 #else
diff --git a/intern/guardedalloc/intern/mallocn_lockfree_impl.c b/intern/guardedalloc/intern/mallocn_lockfree_impl.c
index b4838cdca18..66573b91ace 100644
--- a/intern/guardedalloc/intern/mallocn_lockfree_impl.c
+++ b/intern/guardedalloc/intern/mallocn_lockfree_impl.c
@@ -76,12 +76,7 @@ enum {
 MEM_INLINE void update_maximum(size_t *maximum_value, size_t value)
 {
 #ifdef USE_ATOMIC_MAX
-	size_t prev_value = *maximum_value;
-	while (prev_value < value) {
-		if (atomic_cas_z(maximum_value, prev_value, value) != prev_value) {
-			break;
-		}
-	}
+	atomic_fetch_and_update_max_z(maximum_value, value);
 #else
 	*maximum_value = value > *maximum_value ? value : *maximum_value;
 #endif
diff --git a/intern/itasc/kdl/tree.hpp b/intern/itasc/kdl/tree.hpp
index c8a253fc901..bd35f82d185 100644
--- a/intern/itasc/kdl/tree.hpp
+++ b/intern/itasc/kdl/tree.hpp
@@ -34,7 +34,7 @@ namespace KDL
     //Forward declaration
     class TreeElement;
     // Eigen allocator is needed for alignment of Eigen data types
-    typedef std::map<std::string,TreeElement, std::less<std::string>, Eigen::aligned_allocator<std::pair<std::string, TreeElement> > > SegmentMap;
+    typedef std::map<std::string,TreeElement, std::less<std::string>, Eigen::aligned_allocator<std::pair<const std::string, TreeElement> > > SegmentMap;
 
     class TreeElement
     {
diff --git a/intern/mikktspace/mikktspace.c b/intern/mikktspace/mikktspace.c
index 0342ae0146f..f832b356ffe 100644
--- a/intern/mikktspace/mikktspace.c
+++ b/intern/mikktspace/mikktspace.c
@@ -39,17 +39,23 @@
 
 #define INTERNAL_RND_SORT_SEED		39871946
 
+#ifdef _MSC_VER
+#  define MIKK_INLINE static __forceinline
+#else
+#  define MIKK_INLINE static inline __attribute__((always_inline)) __attribute__((unused))
+#endif
+
 // internal structure
 typedef struct {
 	float x, y, z;
 } SVec3;
 
-static tbool			veq( const SVec3 v1, const SVec3 v2 )
+MIKK_INLINE tbool			veq( const SVec3 v1, const SVec3 v2 )
 {
 	return (v1.x == v2.x) && (v1.y == v2.y) && (v1.z == v2.z);
 }
 
-static SVec3		vadd( const SVec3 v1, const SVec3 v2 )
+MIKK_INLINE SVec3		vadd( const SVec3 v1, const SVec3 v2 )
 {
 	SVec3 vRes;
 
@@ -61,7 +67,7 @@ static SVec3		vadd( const SVec3 v1, const SVec3 v2 )
 }
 
 
-static SVec3		vsub( const SVec3 v1, const SVec3 v2 )
+MIKK_INLINE SVec3		vsub( const SVec3 v1, const SVec3 v2 )
 {
 	SVec3 vRes;
 
@@ -72,7 +78,7 @@ static SVec3		vsub( const SVec3 v1, const SVec3 v2 )
 	return vRes;
 }
 
-static SVec3		vscale(const float fS, const SVec3 v)
+MIKK_INLINE SVec3		vscale(const float fS, const SVec3 v)
 {
 	SVec3 vRes;
 
@@ -83,39 +89,54 @@ static SVec3		vscale(const float fS, const SVec3 v)
 	return vRes;
 }
 
-static float			LengthSquared( const SVec3 v )
+MIKK_INLINE float			LengthSquared( const SVec3 v )
 {
 	return v.x*v.x + v.y*v.y + v.z*v.z;
 }
 
-static float			Length( const SVec3 v )
+MIKK_INLINE float			Length( const SVec3 v )
 {
 	return sqrtf(LengthSquared(v));
 }
 
-static SVec3		Normalize( const SVec3 v )
+#if 0  // UNUSED
+MIKK_INLINE SVec3		Normalize( const SVec3 v )
+{
+	return vscale(1.0f / Length(v), v);
+}
+#endif
+
+MIKK_INLINE SVec3		NormalizeSafe( const SVec3 v )
 {
-	return vscale(1 / Length(v), v);
+	const float len = Length(v);
+	if (len != 0.0f) {
+		return vscale(1.0f / len, v);
+	}
+	else
+	{
+		return v;
+	}
 }
 
-static float		vdot( const SVec3 v1, const SVec3 v2)
+MIKK_INLINE float		vdot( const SVec3 v1, const SVec3 v2)
 {
 	return v1.x*v2.x + v1.y*v2.y + v1.z*v2.z;
 }
 
 
-static tbool NotZero(const float fX)
+MIKK_INLINE tbool NotZero(const float fX)
 {
 	// could possibly use FLT_EPSILON instead
 	return fabsf(fX) > FLT_MIN;
 }
 
-static tbool VNotZero(const SVec3 v)
+#if 0  // UNUSED
+MIKK_INLINE tbool VNotZero(const SVec3 v)
 {
 	// might change this to an epsilon based test
 	return NotZero(v.x) || NotZero(v.y) || NotZero(v.z);
 }
-
+#endif
 
 
 typedef struct {
@@ -169,13 +190,13 @@ static tbool GenerateTSpaces(STSpace psTspace[], const STriInfo pTriInfos[], con
                              const int iNrActiveGroups, const int piTriListIn[], const float fThresCos,
                              const SMikkTSpaceContext * pContext);
 
-static int MakeIndex(const int iFace, const int iVert)
+MIKK_INLINE int MakeIndex(const int iFace, const int iVert)
 {
 	assert(iVert>=0 && iVert<4 && iFace>=0);
 	return (iFace<<2) | (iVert&0x3);
 }
 
-static void IndexToData(int * piFace, int * piVert, const int iIndexIn)
+MIKK_INLINE void IndexToData(int * piFace, int * piVert, const int iIndexIn)
 {
 	piVert[0] = iIndexIn&0x3;
 	piFace[0] = iIndexIn>>2;
@@ -202,8 +223,8 @@ static STSpace AvgTSpace(const STSpace * pTS0, const STSpace * pTS1)
 		ts_res.fMagT = 0.5f*(pTS0->fMagT+pTS1->fMagT);
 		ts_res.vOs = vadd(pTS0->vOs,pTS1->vOs);
 		ts_res.vOt = vadd(pTS0->vOt,pTS1->vOt);
-		if ( VNotZero(ts_res.vOs) ) ts_res.vOs = Normalize(ts_res.vOs);
-		if ( VNotZero(ts_res.vOt) ) ts_res.vOt = Normalize(ts_res.vOt);
+		ts_res.vOs = NormalizeSafe(ts_res.vOs);
+		ts_res.vOt = NormalizeSafe(ts_res.vOt);
 	}
 
 	return ts_res;
@@ -211,9 +232,9 @@ static STSpace AvgTSpace(const STSpace * pTS0, const STSpace * pTS1)
 
 
 
-static SVec3 GetPosition(const SMikkTSpaceContext * pContext, const int index);
-static SVec3 GetNormal(const SMikkTSpaceContext * pContext, const int index);
-static SVec3 GetTexCoord(const SMikkTSpaceContext * pContext, const int index);
+MIKK_INLINE SVec3 GetPosition(const SMikkTSpaceContext * pContext, const int index);
+MIKK_INLINE SVec3 GetNormal(const SMikkTSpaceContext * pContext, const int index);
+MIKK_INLINE SVec3 GetTexCoord(const SMikkTSpaceContext * pContext, const int index);
 
 
 // degen triangles
@@ -238,7 +259,7 @@ tbool genTangSpace(const SMikkTSpaceContext * pContext, const float fAngularThre
 	int iNrActiveGroups = 0, index = 0;
 	const int iNrFaces = pContext->m_pInterface->m_getNumFaces(pContext);
 	tbool bRes = TFALSE;
-	const float fThresCos = (float) cos((fAngularThreshold*(float)M_PI)/180.0f);
+	const float fThresCos = cosf((fAngularThreshold*(float)M_PI)/180.0f);
 
 	// verify all call-backs have been set
 	if ( pContext->m_pInterface->m_getNumFaces==NULL ||
@@ -258,7 +279,7 @@ tbool genTangSpace(const SMikkTSpaceContext * pContext, const float fAngularThre
 	if (iNrTrianglesIn<=0) return TFALSE;
 
 	// allocate memory for an index list
-	piTriListIn = (int *) malloc(sizeof(int)*3*iNrTrianglesIn);
+	piTriListIn = (int *) malloc(sizeof(int[3])*iNrTrianglesIn);
 	pTriInfos = (STriInfo *) malloc(sizeof(STriInfo)*iNrTrianglesIn);
 	if (piTriListIn==NULL || pTriInfos==NULL)
 	{
@@ -311,7 +332,7 @@ tbool genTangSpace(const SMikkTSpaceContext * pContext, const float fAngularThre
 	// based on the 4 rules, identify groups based on connectivity
 	iNrMaxGroups = iNrTrianglesIn*3;
 	pGroups = (SGroup *) malloc(sizeof(SGroup)*iNrMaxGroups);
-	piGroupTrianglesBuffer = (int *) malloc(sizeof(int)*iNrTrianglesIn*3);
+	piGroupTrianglesBuffer = (int *) malloc(sizeof(int[3])*iNrTrianglesIn);
 	if (pGroups==NULL || piGroupTrianglesBuffer==NULL)
 	{
 		if (pGroups!=NULL) free(pGroups);
@@ -427,6 +448,7 @@ typedef struct {
 } STmpVert;
 
 static const int g_iCells = 2048;
+static const float g_iCells_fl = 2048.0f;
 
 #ifdef _MSC_VER
 #  define NOINLINE __declspec(noinline)
@@ -439,7 +461,7 @@ static const int g_iCells = 2048;
 // results for the same effective input value fVal.
 static NOINLINE int FindGridCell(const float fMin, const float fMax, const float fVal)
 {
-	const float fIndex = g_iCells * ((fVal-fMin)/(fMax-fMin));
+	const float fIndex = g_iCells_fl * ((fVal-fMin)/(fMax-fMin));
 	const int iIndex = (int)fIndex;
 	return iIndex < g_iCells ? (iIndex >= 0 ? iIndex : 0) : (g_iCells - 1);
 }
@@ -488,7 +510,7 @@ static void GenerateSharedVerticesIndexList(int piTriList_in_and_out[], const SM
 	}
 
 	// make allocations
-	piHashTable = (int *) malloc(sizeof(int)*iNrTrianglesIn*3);
+	piHashTable = (int *) malloc(sizeof(int[3])*iNrTrianglesIn);
 	piHashCount = (int *) malloc(sizeof(int)*g_iCells);
 	piHashOffsets = (int *) malloc(sizeof(int)*g_iCells);
 	piHashCount2 = (int *) malloc(sizeof(int)*g_iCells);
@@ -544,7 +566,7 @@ static void GenerateSharedVerticesIndexList(int piTriList_in_and_out[], const SM
 		if (iMaxCount<piHashCount[k])
 			iMaxCount=piHashCount[k];
 	pTmpVert = (STmpVert *) malloc(sizeof(STmpVert)*iMaxCount);
-	
+
 
 	// complete the merge
 	for (k=0; k<g_iCells; k++)
@@ -880,7 +902,7 @@ static int GenerateInitialVerticesIndexList(STriInfo pTriInfos[], int piTriList_
 	return iTSpacesOffs;
 }
 
-static SVec3 GetPosition(const SMikkTSpaceContext * pContext, const int index)
+MIKK_INLINE SVec3 GetPosition(const SMikkTSpaceContext * pContext, const int index)
 {
 	int iF, iI;
 	SVec3 res; float pos[3];
@@ -890,7 +912,7 @@ static SVec3 GetPosition(const SMikkTSpaceContext * pContext, const int index)
 	return res;
 }
 
-static SVec3 GetNormal(const SMikkTSpaceContext * pContext, const int index)
+MIKK_INLINE SVec3 GetNormal(const SMikkTSpaceContext * pContext, const int index)
 {
 	int iF, iI;
 	SVec3 res; float norm[3];
@@ -900,7 +922,7 @@ static SVec3 GetNormal(const SMikkTSpaceContext * pContext, const int index)
 	return res;
 }
 
-static SVec3 GetTexCoord(const SMikkTSpaceContext * pContext, const int index)
+MIKK_INLINE SVec3 GetTexCoord(const SMikkTSpaceContext * pContext, const int index)
 {
 	int iF, iI;
 	SVec3 res; float texc[2];
@@ -1048,7 +1070,7 @@ static void InitTriInfo(STriInfo pTriInfos[], const int piTriListIn[], const SMi
 	
 	// match up edge pairs
 	{
-		SEdge * pEdges = (SEdge *) malloc(sizeof(SEdge)*iNrTrianglesIn*3);
+		SEdge * pEdges = (SEdge *) malloc(sizeof(SEdge[3])*iNrTrianglesIn);
 		if (pEdges==NULL)
 			BuildNeighborsSlow(pTriInfos, piTriListIn, iNrTrianglesIn);
 		else
@@ -1064,7 +1086,7 @@ static void InitTriInfo(STriInfo pTriInfos[], const int piTriListIn[], const SMi
 /////////////////////////////////////////////////////////////////////////////////////////////////////
 
 static tbool AssignRecur(const int piTriListIn[], STriInfo psTriInfos[], const int iMyTriIndex, SGroup * pGroup);
-static void AddTriToGroup(SGroup * pGroup, const int iTriIndex);
+MIKK_INLINE void AddTriToGroup(SGroup * pGroup, const int iTriIndex);
 
 static int Build4RuleGroups(STriInfo pTriInfos[], SGroup pGroups[], int piGroupTrianglesBuffer[], const int piTriListIn[], const int iNrTrianglesIn)
 {
@@ -1130,7 +1152,7 @@ static int Build4RuleGroups(STriInfo pTriInfos[], SGroup pGroups[], int piGroupT
 	return iNrActiveGroups;
 }
 
-static void AddTriToGroup(SGroup * pGroup, const int iTriIndex)
+MIKK_INLINE void AddTriToGroup(SGroup * pGroup, const int iTriIndex)
 {
 	pGroup->pFaceIndices[pGroup->iNrFaces] = iTriIndex;
 	++pGroup->iNrFaces;
@@ -1247,10 +1269,8 @@ static tbool GenerateTSpaces(STSpace psTspace[], const STriInfo pTriInfos[], con
 			n = GetNormal(pContext, iVertIndex);
 			
 			// project
-			vOs = vsub(pTriInfos[f].vOs, vscale(vdot(n,pTriInfos[f].vOs), n));
-			vOt = vsub(pTriInfos[f].vOt, vscale(vdot(n,pTriInfos[f].vOt), n));
-			if ( VNotZero(vOs) ) vOs = Normalize(vOs);
-			if ( VNotZero(vOt) ) vOt = Normalize(vOt);
+			vOs = NormalizeSafe(vsub(pTriInfos[f].vOs, vscale(vdot(n,pTriInfos[f].vOs), n)));
+			vOt = NormalizeSafe(vsub(pTriInfos[f].vOt, vscale(vdot(n,pTriInfos[f].vOt), n)));
 
 			// original face number
 			iOF_1 = pTriInfos[f].iOrgFaceNumber;
@@ -1262,10 +1282,8 @@ static tbool GenerateTSpaces(STSpace psTspace[], const STriInfo pTriInfos[], con
 				const int iOF_2 = pTriInfos[t].iOrgFaceNumber;
 
 				// project
-				SVec3 vOs2 = vsub(pTriInfos[t].vOs, vscale(vdot(n,pTriInfos[t].vOs), n));
-				SVec3 vOt2 = vsub(pTriInfos[t].vOt, vscale(vdot(n,pTriInfos[t].vOt), n));
-				if ( VNotZero(vOs2) ) vOs2 = Normalize(vOs2);
-				if ( VNotZero(vOt2) ) vOt2 = Normalize(vOt2);
+				SVec3 vOs2 = NormalizeSafe(vsub(pTriInfos[t].vOs, vscale(vdot(n,pTriInfos[t].vOs), n)));
+				SVec3 vOt2 = NormalizeSafe(vsub(pTriInfos[t].vOt, vscale(vdot(n,pTriInfos[t].vOt), n)));
 
 				{
 					const tbool bAny = ( (pTriInfos[f].iFlag | pTriInfos[t].iFlag) & GROUP_WITH_ANY )!=0 ? TTRUE : TFALSE;
@@ -1321,7 +1339,7 @@ static tbool GenerateTSpaces(STSpace psTspace[], const STriInfo pTriInfos[], con
 				}
 				pUniSubGroups[iUniqueSubGroups].iNrFaces = iMembers;
 				pUniSubGroups[iUniqueSubGroups].pTriMembers = pIndices;
-				memcpy(pIndices, tmp_group.pTriMembers, iMembers*sizeof(int));
+				memcpy(pIndices, tmp_group.pTriMembers, sizeof(int)*iMembers);
 				pSubGroupTspace[iUniqueSubGroups] =
 					EvalTspace(tmp_group.pTriMembers, iMembers, piTriListIn, pTriInfos, pContext, pGroup->iVertexRepresentitive);
 				++iUniqueSubGroups;
@@ -1392,10 +1410,8 @@ static STSpace EvalTspace(int face_indices[], const int iFaces, const int piTriL
 			// project
 			index = piTriListIn[3*f+i];
 			n = GetNormal(pContext, index);
-			vOs = vsub(pTriInfos[f].vOs, vscale(vdot(n,pTriInfos[f].vOs), n));
-			vOt = vsub(pTriInfos[f].vOt, vscale(vdot(n,pTriInfos[f].vOt), n));
-			if ( VNotZero(vOs) ) vOs = Normalize(vOs);
-			if ( VNotZero(vOt) ) vOt = Normalize(vOt);
+			vOs = NormalizeSafe(vsub(pTriInfos[f].vOs, vscale(vdot(n,pTriInfos[f].vOs), n)));
+			vOt = NormalizeSafe(vsub(pTriInfos[f].vOt, vscale(vdot(n,pTriInfos[f].vOt), n)));
 
 			i2 = piTriListIn[3*f + (i<2?(i+1):0)];
 			i1 = piTriListIn[3*f + i];
@@ -1408,8 +1424,8 @@ static STSpace EvalTspace(int face_indices[], const int iFaces, const int piTriL
 			v2 = vsub(p2,p1);
 
 			// project
-			v1 = vsub(v1, vscale(vdot(n,v1),n)); if ( VNotZero(v1) ) v1 = Normalize(v1);
-			v2 = vsub(v2, vscale(vdot(n,v2),n)); if ( VNotZero(v2) ) v2 = Normalize(v2);
+			v1 = NormalizeSafe(vsub(v1, vscale(vdot(n,v1),n)));
+			v2 = NormalizeSafe(vsub(v2, vscale(vdot(n,v2),n)));
 
 			// weight contribution by the angle
 			// between the two edge vectors
@@ -1427,8 +1443,8 @@ static STSpace EvalTspace(int face_indices[], const int iFaces, const int piTriL
 	}
 
 	// normalize
-	if ( VNotZero(res.vOs) ) res.vOs = Normalize(res.vOs);
-	if ( VNotZero(res.vOt) ) res.vOt = Normalize(res.vOt);
+	res.vOs = NormalizeSafe(res.vOs);
+	res.vOt = NormalizeSafe(res.vOt);
 	if (fAngleSum>0)
 	{
 		res.fMagS /= fAngleSum;
@@ -1464,7 +1480,7 @@ static void QuickSort(int* pSortBuffer, int iLeft, int iRight, unsigned int uSee
 	iL=iLeft; iR=iRight;
 	n = (iR-iL)+1;
 	assert(n>=0);
-	index = (int) (uSeed%n);
+	index = (int) (uSeed%(unsigned int)n);
 
 	iMid=pSortBuffer[index + iL];
 
@@ -1661,6 +1677,20 @@ static void QuickSortEdges(SEdge * pSortBuffer, int iLeft, int iRight, const int
 		}
 		return;
 	}
+	else if(iElems < 16) {
+		int i, j;
+		for (i = 0; i < iElems - 1; i++) {
+			for (j = 0; j < iElems - i - 1; j++) {
+				int index = iLeft + j;
+				if (pSortBuffer[index].array[channel] > pSortBuffer[index + 1].array[channel]) {
+					sTmp = pSortBuffer[index];
+					pSortBuffer[index] = pSortBuffer[index + 1];
+					pSortBuffer[index + 1] = sTmp;
+				}
+			}
+		}
+		return;
+	}
 
 	// Random
 	t=uSeed&31;
@@ -1672,7 +1702,7 @@ static void QuickSortEdges(SEdge * pSortBuffer, int iLeft, int iRight, const int
 	iR = iRight;
 	n = (iR-iL)+1;
 	assert(n>=0);
-	index = (int) (uSeed%n);
+	index = (int) (uSeed%(unsigned int)n);
 
 	iMid=pSortBuffer[index + iL].array[channel];
 
@@ -1817,47 +1847,134 @@ static void DegenPrologue(STriInfo pTriInfos[], int piTriList_out[], const int i
 	assert(iNrTrianglesIn == t);
 }
 
-static void DegenEpilogue(STSpace psTspace[], STriInfo pTriInfos[], int piTriListIn[], const SMikkTSpaceContext * pContext, const int iNrTrianglesIn, const int iTotTris)
+typedef struct VertReverseLookupContext {
+	tbool bIsInitialized;
+	int * pLookup;
+	int iMaxVertIndex;
+} VertReverseLookupContext;
+
+static void GenerateReverseLookup(
+        const int piTriListIn[],
+        const int iNrTrianglesIn,
+        VertReverseLookupContext *pLookupCtx)
+{
+	int t;
+	// Figure out what size of lookup array we need.
+	pLookupCtx->iMaxVertIndex = -1;
+	for (t=0; t<3*iNrTrianglesIn; t++)
+	{
+		int iVertIndex = piTriListIn[t];
+		if (iVertIndex > pLookupCtx->iMaxVertIndex) {
+			pLookupCtx->iMaxVertIndex = iVertIndex;
+		}
+	}
+	// Allocate memory.
+	if (pLookupCtx->iMaxVertIndex < 1)
+	{
+		// Nothing to allocate, all triangles are degenerate.
+		return;
+	}
+	pLookupCtx->pLookup = malloc(sizeof(int) * (pLookupCtx->iMaxVertIndex + 1));
+	if (pLookupCtx->pLookup == NULL)
+	{
+		// Most likely run out of memory.
+		return;
+	}
+	// Fill in lookup.
+	for (t=0; t<=pLookupCtx->iMaxVertIndex; t++) {
+		pLookupCtx->pLookup[t] = -1;
+	}
+	for (t=0; t<3*iNrTrianglesIn; t++)
+	{
+		int iVertIndex = piTriListIn[t];
+		if (pLookupCtx->pLookup[iVertIndex] != -1)
+		{
+			continue;
+		}
+		pLookupCtx->pLookup[iVertIndex] = t;
+	}
+}
+
+static int LookupVertexIndexFromGoodTriangle(
+        VertReverseLookupContext *pLookupCtx,
+        int piTriListIn[],
+        const int iNrTrianglesIn,
+        const int iVertexIndex)
+{
+	// Allocate lookup on demand.
+	if (!pLookupCtx->bIsInitialized)
+	{
+		GenerateReverseLookup(piTriListIn,
+		                      iNrTrianglesIn,
+		                      pLookupCtx);
+		pLookupCtx->bIsInitialized = TTRUE;
+	}
+	// Make sure vertex index is in the mapping.
+	if (iVertexIndex > pLookupCtx->iMaxVertIndex)
+	{
+		return -1;
+	}
+	if (pLookupCtx->pLookup == NULL) {
+		return -1;
+	}
+	// Perform actual lookup.
+	return pLookupCtx->pLookup[iVertexIndex];
+}
+
+static void FreeReverseLookup(VertReverseLookupContext *pLookupCtx)
+{
+	if (!pLookupCtx->bIsInitialized) {
+		return;
+	}
+	if (pLookupCtx->pLookup != NULL) {
+		free(pLookupCtx->pLookup);
+	}
+}
+
+static void DegenEpilogue(STSpace psTspace[],
+                          STriInfo pTriInfos[],
+                          int piTriListIn[],
+                          const SMikkTSpaceContext * pContext,
+                          const int iNrTrianglesIn,
+                          const int iTotTris)
 {
 	int t=0, i=0;
+	VertReverseLookupContext lookupCtx = { TFALSE };
 	// deal with degenerate triangles
-	// punishment for degenerate triangles is O(N^2)
+	// punishment for degenerate triangles is O(iNrTrianglesIn) extra memory.
 	for (t=iNrTrianglesIn; t<iTotTris; t++)
 	{
 		// degenerate triangles on a quad with one good triangle are skipped
 		// here but processed in the next loop
 		const tbool bSkip = (pTriInfos[t].iFlag&QUAD_ONE_DEGEN_TRI)!=0 ? TTRUE : TFALSE;
+		if (bSkip) {
+			continue;
+		}
 
-		if (!bSkip)
+		for (i=0; i<3; i++)
 		{
-			for (i=0; i<3; i++)
+			const int index1 = piTriListIn[t*3+i];
+			int j = LookupVertexIndexFromGoodTriangle(&lookupCtx,
+			                                          piTriListIn,
+			                                          iNrTrianglesIn,
+			                                          index1);
+			if (j < 0)
 			{
-				const int index1 = piTriListIn[t*3+i];
-				// search through the good triangles
-				tbool bNotFound = TTRUE;
-				int j=0;
-				while (bNotFound && j<(3*iNrTrianglesIn))
-				{
-					const int index2 = piTriListIn[j];
-					if (index1==index2) bNotFound=TFALSE;
-					else ++j;
-				}
-
-				if (!bNotFound)
-				{
-					const int iTri = j/3;
-					const int iVert = j%3;
-					const int iSrcVert=pTriInfos[iTri].vert_num[iVert];
-					const int iSrcOffs=pTriInfos[iTri].iTSpacesOffs;
-					const int iDstVert=pTriInfos[t].vert_num[i];
-					const int iDstOffs=pTriInfos[t].iTSpacesOffs;
-					
-					// copy tspace
-					psTspace[iDstOffs+iDstVert] = psTspace[iSrcOffs+iSrcVert];
-				}
+				// Matching vertex from good triangle is not found.
+				continue;
 			}
+
+			const int iTri = j/3;
+			const int iVert = j%3;
+			const int iSrcVert=pTriInfos[iTri].vert_num[iVert];
+			const int iSrcOffs=pTriInfos[iTri].iTSpacesOffs;
+			const int iDstVert=pTriInfos[t].vert_num[i];
+			const int iDstOffs=pTriInfos[t].iTSpacesOffs;
+			// copy tspace
+			psTspace[iDstOffs+iDstVert] = psTspace[iSrcOffs+iSrcVert];
 		}
 	}
+	FreeReverseLookup(&lookupCtx);
 
 	// deal with degenerate quads with one good triangle
 	for (t=0; t<iNrTrianglesIn; t++)
diff --git a/intern/openvdb/intern/openvdb_writer.cc b/intern/openvdb/intern/openvdb_writer.cc
index 923752909d9..e886c5a76a8 100644
--- a/intern/openvdb/intern/openvdb_writer.cc
+++ b/intern/openvdb/intern/openvdb_writer.cc
@@ -45,7 +45,11 @@ void OpenVDBWriter::insert(const openvdb::GridBase::Ptr &grid)
 
 void OpenVDBWriter::insert(const openvdb::GridBase &grid)
 {
+#if (OPENVDB_LIBRARY_MAJOR_VERSION_NUMBER == 3)
 	m_grids->push_back(grid.copyGrid());
+#else
+	m_grids->push_back(grid.copyGridWithNewTree());
+#endif
 }
 
 void OpenVDBWriter::insertFloatMeta(const openvdb::Name &name, const float value)
diff --git a/intern/string/intern/STR_String.cpp b/intern/string/intern/STR_String.cpp
index 4612c91b6a6..3ec65ddc725 100644
--- a/intern/string/intern/STR_String.cpp
+++ b/intern/string/intern/STR_String.cpp
@@ -37,9 +37,6 @@
 #include <stdlib.h>
 #include <ctype.h>
 #include <string.h>
-#if defined(__sun__) || defined(__sun) || defined(__sparc) || defined(__sparc__) || defined(_AIX)
-#  include <strings.h>
-#endif
 #include "STR_String.h"
 
 /*-------------------------------------------------------------------------------------------------
diff --git a/make.bat b/make.bat
index 988cb5f4c68..febe15f2ced 100644
--- a/make.bat
+++ b/make.bat
@@ -5,6 +5,7 @@ setlocal EnableDelayedExpansion
 setlocal ENABLEEXTENSIONS
 set BLENDER_DIR=%~dp0
 set BLENDER_DIR_NOSPACES=%BLENDER_DIR: =%
+for %%X in (svn.exe) do (set HAS_SVN=%%~$PATH:X)
 if not "%BLENDER_DIR%"=="%BLENDER_DIR_NOSPACES%" (
 	echo There are spaces detected in the build path "%BLENDER_DIR%", this is currently not supported, exiting....
 	goto EOF
@@ -17,6 +18,9 @@ set BUILD_CMAKE_ARGS=
 set BUILD_ARCH=
 set BUILD_VS_VER=
 set BUILD_VS_YEAR=
+set BUILD_VS_LIBDIRPOST=
+set BUILD_VS_LIBDIR=
+set BUILD_VS_SVNDIR=
 set BUILD_NGE=
 set KEY_NAME=
 set MSBUILD_PLATFORM=
@@ -67,25 +71,28 @@ if NOT "%1" == "" (
 		    -C"%BLENDER_DIR%\build_files\cmake\config\bpy_module.cmake"
 	) else if "%1" == "release" (
 		set TARGET=Release
-	)	else if "%1" == "x86" (
+	) else if "%1" == "x86" (
 		set BUILD_ARCH=x86
-	)	else if "%1" == "x64" (
+	) else if "%1" == "x64" (
 		set BUILD_ARCH=x64
-	)	else if "%1" == "2017" (
+	) else if "%1" == "2017" (
 	set BUILD_VS_VER=15
 	set BUILD_VS_YEAR=2017
-	)	else if "%1" == "2015" (
+	set BUILD_VS_LIBDIRPOST=vc14
+	) else if "%1" == "2015" (
 	set BUILD_VS_VER=14
 	set BUILD_VS_YEAR=2015
-	)	else if "%1" == "2013" (
+	set BUILD_VS_LIBDIRPOST=vc14
+	) else if "%1" == "2013" (
 	set BUILD_VS_VER=12
 	set BUILD_VS_YEAR=2013
-	)	else if "%1" == "packagename" (
+	set BUILD_VS_LIBDIRPOST=vc12
+	) else if "%1" == "packagename" (
 	set BUILD_CMAKE_ARGS=%BUILD_CMAKE_ARGS% -DCPACK_OVERRIDE_PACKAGENAME="%2"
 	shift /1
-	)	else if "%1" == "nobuild" (
+	) else if "%1" == "nobuild" (
 	set NOBUILD=1
-	)	else if "%1" == "showhash" (
+	) else if "%1" == "showhash" (
 		for /f "delims=" %%i in ('git rev-parse HEAD') do echo Branch_hash=%%i
 		cd release/datafiles/locale
 		for /f "delims=" %%i in ('git rev-parse HEAD') do echo Locale_hash=%%i
@@ -122,31 +129,32 @@ if "%BUILD_ARCH%"=="" (
 		set BUILD_ARCH=x86
 	)
 ) else if "%BUILD_ARCH%"=="x64" (
-		set WINDOWS_ARCH= Win64
-	) else if "%BUILD_ARCH%"=="x86" (
-		set WINDOWS_ARCH=
-	)
+	set WINDOWS_ARCH= Win64
+) else if "%BUILD_ARCH%"=="x86" (
+	set WINDOWS_ARCH=
+)
 
 if "%BUILD_VS_VER%"=="" (
 	set BUILD_VS_VER=12
 	set BUILD_VS_YEAR=2013
+	set BUILD_VS_LIBDIRPOST=vc12
 )
 
 if "%BUILD_ARCH%"=="x64" (
 	set MSBUILD_PLATFORM=x64
-	) else if "%BUILD_ARCH%"=="x86" (
-		set MSBUILD_PLATFORM=win32
+) else if "%BUILD_ARCH%"=="x86" (
+	set MSBUILD_PLATFORM=win32
 )
 
 
 if "%target%"=="Release" (
-		rem for vc12 check for both cuda 7.5 and 8
-		if "%CUDA_PATH%"=="" (
-			echo Cuda Not found, aborting!
-			goto EOF
-		)
-		set BUILD_CMAKE_ARGS=%BUILD_CMAKE_ARGS% ^
-		-C"%BLENDER_DIR%\build_files\cmake\config\blender_release.cmake"
+	rem for vc12 check for both cuda 7.5 and 8
+	if "%CUDA_PATH%"=="" (
+		echo Cuda Not found, aborting!
+		goto EOF
+	)
+	set BUILD_CMAKE_ARGS=%BUILD_CMAKE_ARGS% ^
+	-C"%BLENDER_DIR%\build_files\cmake\config\blender_release.cmake"
 )
 
 :DetectMSVC
@@ -183,8 +191,9 @@ if %ERRORLEVEL% NEQ 0 (
 		echo Visual Studio 2013 not found, trying Visual Studio 2015.
 		set BUILD_VS_VER=14
 		set BUILD_VS_YEAR=2015
+		set BUILD_VS_LIBDIRPOST=vc14
 		goto DetectMSVC
-	)	else	(
+	) else (
 		echo Error: "MSBuild" command not in the PATH.
 		echo You must have MSVC installed and run this from the "Developer Command Prompt"
 		echo ^(available from Visual Studio's Start menu entry^), aborting!
@@ -204,11 +213,36 @@ if %ERRORLEVEL% NEQ 0 (
 	echo You must have CMake installed and added to your PATH, aborting!
 	goto EOF
 )
-if NOT EXIST %BLENDER_DIR%..\lib\nul (
-	echo Error: Path to libraries not found "%BLENDER_DIR%..\lib\"
+
+if "%BUILD_ARCH%"=="x64" (
+	set BUILD_VS_SVNDIR=win64_%BUILD_VS_LIBDIRPOST%
+) else if "%BUILD_ARCH%"=="x86" (
+	set BUILD_VS_SVNDIR=windows_%BUILD_VS_LIBDIRPOST%
+)
+set BUILD_VS_LIBDIR="%BLENDER_DIR%..\lib\%BUILD_VS_SVNDIR%"
+
+if NOT EXIST %BUILD_VS_LIBDIR% (
+	rem libs not found, but svn is on the system
+	if not "%HAS_SVN%"=="" (
+		echo.
+		echo The required external libraries in %BUILD_VS_LIBDIR% are missing
+		echo.
+		set /p GetLibs= "Would you like to download them? (y/n)"
+		if /I "!GetLibs!"=="Y" (
+			echo.
+			echo Downloading %BUILD_VS_SVNDIR% libraries, please wait.
+			echo. 
+			svn checkout https://svn.blender.org/svnroot/bf-blender/trunk/lib/%BUILD_VS_SVNDIR% %BUILD_VS_LIBDIR%
+		)
+	)
+)
+
+if NOT EXIST %BUILD_VS_LIBDIR% (
+	echo Error: Path to libraries not found "%BUILD_VS_LIBDIR%"
 	echo This is needed for building, aborting!
 	goto EOF
 )
+
 if "%TARGET%"=="" (
 	echo Error: Convenience target not set
 	echo This is required for building, aborting!
@@ -297,31 +331,32 @@ echo Blender successfully built, run from: "%BUILD_DIR%\bin\%BUILD_TYPE%\blender
 echo.
 goto EOF
 :HELP
-		echo.
-		echo Convenience targets
-		echo - release ^(identical to the official blender.org builds^)
-		echo - full ^(same as release minus the cuda kernels^)
-		echo - lite
-		echo - headless
-		echo - cycles
-		echo - bpy
-		echo.
-		echo Utilities ^(not associated with building^)
-		echo - clean ^(Target must be set^)
-		echo - update
-		echo - nobuild ^(only generate project files^)
-		echo - showhash ^(Show git hashes of source tree^)
-		echo.
-		echo Configuration options
-		echo - with_tests ^(enable building unit tests^)
-		echo - noge ^(disable building game enginge and player^)
-		echo - debug ^(Build an unoptimized debuggable build^)
-		echo - packagename [newname] ^(override default cpack package name^)
-		echo - buildir [newdir] ^(override default build folder^)
-		echo - x86 ^(override host auto-detect and build 32 bit code^)
-		echo - x64 ^(override host auto-detect and build 64 bit code^)
-		echo - 2013 ^(build with visual studio 2013^)
-		echo - 2015 ^(build with visual studio 2015^) [EXPERIMENTAL]
-		echo.
+	echo.
+	echo Convenience targets
+	echo - release ^(identical to the official blender.org builds^)
+	echo - full ^(same as release minus the cuda kernels^)
+	echo - lite
+	echo - headless
+	echo - cycles
+	echo - bpy
+	echo.
+	echo Utilities ^(not associated with building^)
+	echo - clean ^(Target must be set^)
+	echo - update
+	echo - nobuild ^(only generate project files^)
+	echo - showhash ^(Show git hashes of source tree^)
+	echo.
+	echo Configuration options
+	echo - with_tests ^(enable building unit tests^)
+	echo - noge ^(disable building game enginge and player^)
+	echo - debug ^(Build an unoptimized debuggable build^)
+	echo - packagename [newname] ^(override default cpack package name^)
+	echo - buildir [newdir] ^(override default build folder^)
+	echo - x86 ^(override host auto-detect and build 32 bit code^)
+	echo - x64 ^(override host auto-detect and build 64 bit code^)
+	echo - 2013 ^(build with visual studio 2013^)
+	echo - 2015 ^(build with visual studio 2015^) [EXPERIMENTAL]
+	echo - 2017 ^(build with visual studio 2017^) [EXPERIMENTAL]
+	echo.
 
 :EOF
diff --git a/release/datafiles/splash.png b/release/datafiles/splash.png
index 60956db2576..1cd817a8e8c 100644
--- a/release/datafiles/splash.png
+++ b/release/datafiles/splash.png
diff --git a/release/datafiles/splash_2x.png b/release/datafiles/splash_2x.png
index 3a5000c6bbc..2ba54b92cff 100644
--- a/release/datafiles/splash_2x.png
+++ b/release/datafiles/splash_2x.png
diff --git a/release/scripts/freestyle/styles/apriori_and_causal_density.py b/release/scripts/freestyle/styles/apriori_and_causal_density.py
index 2ba768af835..42fc3370488 100644
--- a/release/scripts/freestyle/styles/apriori_and_causal_density.py
+++ b/release/scripts/freestyle/styles/apriori_and_causal_density.py
@@ -19,8 +19,8 @@
 #  Filename : apriori_and_causal_density.py
 #  Author   : Stephane Grabli
 #  Date     : 04/08/2005
-#  Purpose  : Selects the lines with high a priori density and 
-#             subjects them to the causal density so as to avoid 
+#  Purpose  : Selects the lines with high a priori density and
+#             subjects them to the causal density so as to avoid
 #             cluttering
 
 from freestyle.chainingiterators import ChainPredicateIterator
diff --git a/release/scripts/freestyle/styles/cartoon.py b/release/scripts/freestyle/styles/cartoon.py
index e630127db1a..87518bb832e 100644
--- a/release/scripts/freestyle/styles/cartoon.py
+++ b/release/scripts/freestyle/styles/cartoon.py
@@ -19,7 +19,7 @@
 #  Filename : cartoon.py
 #  Author   : Stephane Grabli
 #  Date     : 04/08/2005
-#  Purpose  : Draws colored lines. The color is automatically 
+#  Purpose  : Draws colored lines. The color is automatically
 #             inferred from each object's material in a cartoon-like
 #             fashion.
 
diff --git a/release/scripts/freestyle/styles/external_contour_sketchy.py b/release/scripts/freestyle/styles/external_contour_sketchy.py
index 44dbda4709f..6bccf23ac8d 100644
--- a/release/scripts/freestyle/styles/external_contour_sketchy.py
+++ b/release/scripts/freestyle/styles/external_contour_sketchy.py
@@ -19,8 +19,8 @@
 #  Filename : external_contour_sketchy.py
 #  Author   : Stephane Grabli
 #  Date     : 04/08/2005
-#  Purpose  : Draws the external contour of the scene using a sketchy 
-#             chaining iterator (in particular each ViewEdge can be drawn 
+#  Purpose  : Draws the external contour of the scene using a sketchy
+#             chaining iterator (in particular each ViewEdge can be drawn
 #             several times
 
 from freestyle.chainingiterators import pySketchyChainingIterator
@@ -41,7 +41,7 @@ from freestyle.shaders import (
 from freestyle.types import Operators
 
 
-upred = AndUP1D(QuantitativeInvisibilityUP1D(0), ExternalContourUP1D()) 
+upred = AndUP1D(QuantitativeInvisibilityUP1D(0), ExternalContourUP1D())
 Operators.select(upred)
 Operators.bidirectional_chain(pySketchyChainingIterator(), NotUP1D(upred))
 shaders_list = [
diff --git a/release/scripts/freestyle/styles/haloing.py b/release/scripts/freestyle/styles/haloing.py
index 6cd37779a42..34e4f65cf91 100644
--- a/release/scripts/freestyle/styles/haloing.py
+++ b/release/scripts/freestyle/styles/haloing.py
@@ -19,8 +19,8 @@
 #  Filename : haloing.py
 #  Author   : Stephane Grabli
 #  Date     : 04/08/2005
-#  Purpose  : This style module selects the lines that 
-#             are connected (in the image) to a specific 
+#  Purpose  : This style module selects the lines that
+#             are connected (in the image) to a specific
 #             object and trims them in order to produce
 #             a haloing effect around the target shape
 
@@ -42,14 +42,14 @@ from freestyle.shaders import (
 from freestyle.types import Id, Operators
 
 
-# id corresponds to the id of the target object 
+# id corresponds to the id of the target object
 # (accessed by SHIFT+click)
 id = Id(3,0)
 upred = AndUP1D(QuantitativeInvisibilityUP1D(0), pyIsOccludedByUP1D(id))
 Operators.select(upred)
 Operators.bidirectional_chain(ChainSilhouetteIterator(), NotUP1D(upred))
 shaders_list = [
-    IncreasingThicknessShader(3, 5), 
+    IncreasingThicknessShader(3, 5),
     IncreasingColorShader(1,0,0, 1,0,1,0,1),
     SamplingShader(1.0),
     pyTVertexRemoverShader(),
diff --git a/release/scripts/freestyle/styles/invisible_lines.py b/release/scripts/freestyle/styles/invisible_lines.py
index 461429b6437..5506f4ef11f 100644
--- a/release/scripts/freestyle/styles/invisible_lines.py
+++ b/release/scripts/freestyle/styles/invisible_lines.py
@@ -19,7 +19,7 @@
 #  Filename : invisible_lines.py
 #  Author   : Stephane Grabli
 #  Date     : 04/08/2005
-#  Purpose  : Draws all lines whose Quantitative Invisibility 
+#  Purpose  : Draws all lines whose Quantitative Invisibility
 #             is different from 0
 
 from freestyle.chainingiterators import ChainSilhouetteIterator
diff --git a/release/scripts/freestyle/styles/long_anisotropically_dense.py b/release/scripts/freestyle/styles/long_anisotropically_dense.py
index 50bec4f1a79..bfd5910cefe 100644
--- a/release/scripts/freestyle/styles/long_anisotropically_dense.py
+++ b/release/scripts/freestyle/styles/long_anisotropically_dense.py
@@ -19,13 +19,13 @@
 #  Filename : long_anisotropically_dense.py
 #  Author   : Stephane Grabli
 #  Date     : 04/08/2005
-#  Purpose  : Selects the lines that are long and have a high anisotropic 
-#             a priori density and uses causal density 
+#  Purpose  : Selects the lines that are long and have a high anisotropic
+#             a priori density and uses causal density
 #             to draw without cluttering. Ideally, half of the
 #             selected lines are culled using the causal density.
 #
 #             ********************* WARNING *************************************
-#             ******** The Directional a priori density maps must          ****** 
+#             ******** The Directional a priori density maps must          ******
 #             ******** have been computed prior to using this style module ******
 
 from freestyle.chainingiterators import ChainSilhouetteIterator
@@ -75,7 +75,7 @@ Operators.sort(pyLengthBP1D())
 shaders_list = [
     SamplingShader(2.0),
     ConstantThicknessShader(2),
-    ConstantColorShader(0.2,0.2,0.25,1), 
+    ConstantColorShader(0.2,0.2,0.25,1),
     ]
 ## uniform culling
 Operators.create(pyDensityUP1D(3.0,2.0e-2, IntegrationType.MEAN, 0.1), shaders_list)
diff --git a/release/scripts/freestyle/styles/multiple_parameterization.py b/release/scripts/freestyle/styles/multiple_parameterization.py
index 0e224c74bbf..c03a61c9a81 100644
--- a/release/scripts/freestyle/styles/multiple_parameterization.py
+++ b/release/scripts/freestyle/styles/multiple_parameterization.py
@@ -19,7 +19,7 @@
 #  Filename : multiple_parameterization.py
 #  Author   : Stephane Grabli
 #  Date     : 04/08/2005
-#  Purpose  : The thickness and the color of the strokes vary continuously 
+#  Purpose  : The thickness and the color of the strokes vary continuously
 #             independently from occlusions although only
 #             visible lines are actually drawn. This is equivalent
 #             to assigning the thickness using a parameterization covering
diff --git a/release/scripts/freestyle/styles/nature.py b/release/scripts/freestyle/styles/nature.py
index 74a42e6b2e5..1061f22017a 100644
--- a/release/scripts/freestyle/styles/nature.py
+++ b/release/scripts/freestyle/styles/nature.py
@@ -22,7 +22,7 @@
 #  Purpose  : Uses the NatureUP1D predicate to select the lines
 #             of a given type (among Nature.SILHOUETTE, Nature.CREASE, Nature.SUGGESTIVE_CONTOURS,
 #             Nature.BORDERS).
-#             The suggestive contours must have been enabled in the 
+#             The suggestive contours must have been enabled in the
 #             options dialog to appear in the View Map.
 
 from freestyle.chainingiterators import ChainSilhouetteIterator
diff --git a/release/scripts/freestyle/styles/near_lines.py b/release/scripts/freestyle/styles/near_lines.py
index 5e260a22382..14c8d2f9e01 100644
--- a/release/scripts/freestyle/styles/near_lines.py
+++ b/release/scripts/freestyle/styles/near_lines.py
@@ -19,7 +19,7 @@
 #  Filename : near_lines.py
 #  Author   : Stephane Grabli
 #  Date     : 04/08/2005
-#  Purpose  : Draws the lines that are "closer" than a threshold 
+#  Purpose  : Draws the lines that are "closer" than a threshold
 #             (between 0 and 1)
 
 from freestyle.chainingiterators import ChainSilhouetteIterator
diff --git a/release/scripts/freestyle/styles/qi1.py b/release/scripts/freestyle/styles/qi1.py
index d70e56d401a..4d87055eafb 100644
--- a/release/scripts/freestyle/styles/qi1.py
+++ b/release/scripts/freestyle/styles/qi1.py
@@ -20,7 +20,7 @@
 #  Author   : Stephane Grabli
 #  Date     : 04/08/2005
 #  Purpose  : Draws lines hidden by one surface.
-#             *** Quantitative Invisibility must have been 
+#             *** Quantitative Invisibility must have been
 #             enabled in the options dialog to use this style module ****
 
 from freestyle.chainingiterators import ChainSilhouetteIterator
diff --git a/release/scripts/freestyle/styles/qi2.py b/release/scripts/freestyle/styles/qi2.py
index 6ac933ecc05..937b5db590a 100644
--- a/release/scripts/freestyle/styles/qi2.py
+++ b/release/scripts/freestyle/styles/qi2.py
@@ -20,7 +20,7 @@
 #  Author   : Stephane Grabli
 #  Date     : 04/08/2005
 #  Purpose  : Draws lines hidden by two surfaces.
-#             *** Quantitative Invisibility must have been 
+#             *** Quantitative Invisibility must have been
 #             enabled in the options dialog to use this style module ****
 
 from freestyle.chainingiterators import ChainSilhouetteIterator
diff --git a/release/scripts/freestyle/styles/sequentialsplit_sketchy.py b/release/scripts/freestyle/styles/sequentialsplit_sketchy.py
index b980fdc87d7..5755fd3b845 100644
--- a/release/scripts/freestyle/styles/sequentialsplit_sketchy.py
+++ b/release/scripts/freestyle/styles/sequentialsplit_sketchy.py
@@ -21,7 +21,7 @@
 #  Date     : 04/08/2005
 #  Purpose  : Use the sequential split with two different
 #             predicates to specify respectively the starting and
-#             the stopping extremities for strokes 
+#             the stopping extremities for strokes
 
 from freestyle.chainingiterators import ChainSilhouetteIterator
 from freestyle.predicates import (
diff --git a/release/scripts/freestyle/styles/sketchy_multiple_parameterization.py b/release/scripts/freestyle/styles/sketchy_multiple_parameterization.py
index a3ce6112165..8302ec8e4c3 100644
--- a/release/scripts/freestyle/styles/sketchy_multiple_parameterization.py
+++ b/release/scripts/freestyle/styles/sketchy_multiple_parameterization.py
@@ -19,7 +19,7 @@
 #  Filename : sketchy_multiple_parameterization.py
 #  Author   : Stephane Grabli
 #  Date     : 04/08/2005
-#  Purpose  : Builds sketchy strokes whose topology relies on a 
+#  Purpose  : Builds sketchy strokes whose topology relies on a
 #             parameterization that covers the complete lines (visible+invisible)
 #             whereas only the visible portions are actually drawn
 
diff --git a/release/scripts/freestyle/styles/uniformpruning_zsort.py b/release/scripts/freestyle/styles/uniformpruning_zsort.py
index 814e140ee49..64e808d9f8a 100644
--- a/release/scripts/freestyle/styles/uniformpruning_zsort.py
+++ b/release/scripts/freestyle/styles/uniformpruning_zsort.py
@@ -17,7 +17,7 @@
 # ##### END GPL LICENSE BLOCK #####
 
 #  Filename : uniformpruning_zsort.py
-#  Authors  : Fredo Durand, Stephane Grabli, Francois Sillion, Emmanuel Turquin 
+#  Authors  : Fredo Durand, Stephane Grabli, Francois Sillion, Emmanuel Turquin
 #  Date     : 08/04/2005
 
 from freestyle.chainingiterators import ChainSilhouetteIterator
diff --git a/release/scripts/modules/bl_i18n_utils/utils_spell_check.py b/release/scripts/modules/bl_i18n_utils/utils_spell_check.py
index 285e2ebe477..b33588c903b 100644
--- a/release/scripts/modules/bl_i18n_utils/utils_spell_check.py
+++ b/release/scripts/modules/bl_i18n_utils/utils_spell_check.py
@@ -128,7 +128,7 @@ class SpellChecker:
         "multisampling",
         "multiscatter",
         "multitexture",
-        "multithreaded", 
+        "multithreaded",
         "multiuser",
         "multiview",
         "namespace",
diff --git a/release/scripts/modules/bpy/utils/__init__.py b/release/scripts/modules/bpy/utils/__init__.py
index 1d555ae7123..c3175f93f4e 100644
--- a/release/scripts/modules/bpy/utils/__init__.py
+++ b/release/scripts/modules/bpy/utils/__init__.py
@@ -37,6 +37,8 @@ __all__ = (
     "register_module",
     "register_manual_map",
     "unregister_manual_map",
+    "register_classes_factory",
+    "register_submodule_factory",
     "make_rna_paths",
     "manual_map",
     "previews",
@@ -71,6 +73,7 @@ import addon_utils as _addon_utils
 
 _user_preferences = _bpy.context.user_preferences
 _script_module_dirs = "startup", "modules"
+_is_factory_startup = _bpy.app.factory_startup
 
 
 def _test_import(module_name, loaded_modules):
@@ -144,6 +147,7 @@ def load_scripts(reload_scripts=False, refresh_scripts=False):
     :type refresh_scripts: bool
     """
     use_time = use_class_register_check = _bpy.app.debug_python
+    use_user = not _is_factory_startup
 
     if use_time:
         import time
@@ -234,7 +238,7 @@ def load_scripts(reload_scripts=False, refresh_scripts=False):
     from bpy_restrict_state import RestrictBlend
 
     with RestrictBlend():
-        for base_path in script_paths():
+        for base_path in script_paths(use_user=use_user):
             for path_subdir in _script_module_dirs:
                 path = _os.path.join(base_path, path_subdir)
                 if _os.path.isdir(path):
@@ -306,7 +310,7 @@ def script_path_pref():
     return _os.path.normpath(path) if path else None
 
 
-def script_paths(subdir=None, user_pref=True, check_all=False):
+def script_paths(subdir=None, user_pref=True, check_all=False, use_user=True):
     """
     Returns a list of valid script paths.
 
@@ -328,15 +332,30 @@ def script_paths(subdir=None, user_pref=True, check_all=False):
     # so the 'BLENDER_SYSTEM_SCRIPTS' environment variable will be used.
     base_paths = _bpy_script_paths()
 
+    # Defined to be (system, user) so we can skip the second if needed.
+    if not use_user:
+        base_paths = base_paths[:1]
+
     if check_all:
         # All possible paths, no duplicates, keep order.
+        if use_user:
+            test_paths = ('LOCAL', 'USER', 'SYSTEM')
+        else:
+            test_paths = ('LOCAL', 'SYSTEM')
+
         base_paths = (
-            *(path for path in (_os.path.join(resource_path(res), "scripts")
-              for res in ('LOCAL', 'USER', 'SYSTEM')) if path not in base_paths),
+            *(path for path in (
+                _os.path.join(resource_path(res), "scripts")
+                for res in test_paths) if path not in base_paths),
             *base_paths,
-            )
+        )
 
-    for path in (*base_paths, script_path_user(), script_path_pref()):
+    if use_user:
+        test_paths = (*base_paths, script_path_user(), script_path_pref())
+    else:
+        test_paths = (*base_paths, script_path_pref())
+
+    for path in test_paths:
         if path:
             path = _os.path.normpath(path)
             if path not in scripts and _os.path.isdir(path):
@@ -381,27 +400,26 @@ def app_template_paths(subdir=None):
     :return: app template paths.
     :rtype: generator
     """
+    # Note: keep in sync with: Blender's BKE_appdir_app_template_any
 
-    # note: LOCAL, USER, SYSTEM order matches script resolution order.
     subdir_tuple = (subdir,) if subdir is not None else ()
 
-    path = _os.path.join(*(
-        resource_path('LOCAL'), "scripts", "startup",
-        "bl_app_templates_user", *subdir_tuple))
-    if _os.path.isdir(path):
-        yield path
-    else:
-        path = _os.path.join(*(
-            resource_path('USER'), "scripts", "startup",
-            "bl_app_templates_user", *subdir_tuple))
-        if _os.path.isdir(path):
-            yield path
-
-    path = _os.path.join(*(
-        resource_path('SYSTEM'), "scripts", "startup",
-        "bl_app_templates_system", *subdir_tuple))
-    if _os.path.isdir(path):
-        yield path
+    # Avoid adding 'bl_app_templates_system' twice.
+    # Either we have a portable build or an installed system build.
+    for resource_type, module_name in (
+            ('USER', "bl_app_templates_user"),
+            ('LOCAL', "bl_app_templates_system"),
+            ('SYSTEM', "bl_app_templates_system"),
+    ):
+        path = resource_path(resource_type)
+        if path:
+            path = _os.path.join(
+                *(path, "scripts", "startup", module_name, *subdir_tuple))
+            if _os.path.isdir(path):
+                yield path
+                # Only load LOCAL or SYSTEM (never both).
+                if resource_type == 'LOCAL':
+                    break
 
 
 def preset_paths(subdir):
@@ -684,6 +702,65 @@ def unregister_module(module, verbose=False):
         print("done.\n")
 
 
+def register_classes_factory(classes):
+    """
+    Utility function to create register and unregister functions
+    which simply registers and unregisters a sequence of classes.
+    """
+    def register():
+        from bpy.utils import register_class
+        for cls in classes:
+            register_class(cls)
+
+    def unregister():
+        from bpy.utils import unregister_class
+        for cls in reversed(classes):
+            unregister_class(cls)
+
+    return register, unregister
+
+
+def register_submodule_factory(module_name, submodule_names):
+    """
+    Utility function to create register and unregister functions
+    which simply load submodules,
+    calling their register & unregister functions.
+
+    .. note::
+
+       Modules are registered in the order given,
+       unregistered in reverse order.
+
+    :arg module_name: The module name, typically ``__name__``.
+    :type module_name: string
+    :arg submodule_names: List of submodule names to load and unload.
+    :type submodule_names: list of strings
+    :return: register and unregister functions.
+    :rtype: tuple pair of functions
+    """
+
+    module = None
+    submodules = []
+
+    def register():
+        nonlocal module
+        module = __import__(name=module_name, fromlist=submodule_names)
+        submodules[:] = [getattr(module, name) for name in submodule_names]
+        for mod in submodules:
+            mod.register()
+
+    def unregister():
+        from sys import modules
+        for mod in reversed(submodules):
+            mod.unregister()
+            name = mod.__name__
+            delattr(module, name.partition(".")[2])
+            del modules[name]
+        submodules.clear()
+
+    return register, unregister
+
+
 # -----------------------------------------------------------------------------
 # Manual lookups, each function has to return a basepath and a sequence
 # of...
diff --git a/release/scripts/modules/bpy_extras/anim_utils.py b/release/scripts/modules/bpy_extras/anim_utils.py
index 5e21260e5e4..ea0bd77c0f0 100644
--- a/release/scripts/modules/bpy_extras/anim_utils.py
+++ b/release/scripts/modules/bpy_extras/anim_utils.py
@@ -20,35 +20,118 @@
 
 __all__ = (
     "bake_action",
-    )
+    "bake_action_objects",
+
+    "bake_action_iter",
+    "bake_action_objects_iter",
+)
 
 import bpy
 
 
-# XXX visual keying is actually always considered as True in this code...
-def bake_action(frame_start,
-                frame_end,
-                frame_step=1,
-                only_selected=False,
-                do_pose=True,
-                do_object=True,
-                do_visual_keying=True,
-                do_constraint_clear=False,
-                do_parents_clear=False,
-                do_clean=False,
-                action=None,
-                ):
+def bake_action(
+        obj,
+        *,
+        action, frames,
+        **kwargs
+):
+    """
+    :arg obj: Object to bake.
+    :type obj: :class:`bpy.types.Object`
+    :arg action: An action to bake the data into, or None for a new action
+       to be created.
+    :type action: :class:`bpy.types.Action` or None
+    :arg frames: Frames to bake.
+    :type frames: iterable of int
 
+    :return: an action or None
+    :rtype: :class:`bpy.types.Action`
     """
-    Return an image from the file path with options to search multiple paths
-    and return a placeholder if its not found.
-
-    :arg frame_start: First frame to bake.
-    :type frame_start: int
-    :arg frame_end: Last frame to bake.
-    :type frame_end: int
-    :arg frame_step: Frame step.
-    :type frame_step: int
+    if not (do_pose or do_object):
+        return None
+
+    action, = bake_action_objects(
+        [(obj, action)],
+        frames,
+        **kwargs,
+    )
+    return action
+
+
+def bake_action_objects(
+        object_action_pairs,
+        *,
+        frames,
+        **kwargs
+):
+    """
+    A version of :func:`bake_action_objects_iter` that takes frames and returns the output.
+
+    :arg frames: Frames to bake.
+    :type frames: iterable of int
+
+    :return: A sequence of Action or None types (aligned with `object_action_pairs`)
+    :rtype: sequence of :class:`bpy.types.Action`
+    """
+    iter = bake_action_objects_iter(object_action_pairs, **kwargs)
+    iter.send(None)
+    for frame in frames:
+        iter.send(frame)
+    return iter.send(None)
+
+
+def bake_action_objects_iter(
+        object_action_pairs,
+        **kwargs
+):
+    """
+    An coroutine that bakes actions for multiple objects.
+
+    :arg object_action_pairs: Sequence of object action tuples,
+       action is the destination for the baked data. When None a new action will be created.
+    :type object_action_pairs: Sequence of (:class:`bpy.types.Object`, :class:`bpy.types.Action`)
+    """
+    scene = bpy.context.scene
+    frame_back = scene.frame_current
+    iter_all = tuple(
+        bake_action_iter(obj, action=action, **kwargs)
+        for (obj, action) in object_action_pairs
+    )
+    for iter in iter_all:
+        iter.send(None)
+    while True:
+        frame = yield None
+        if frame is None:
+            break
+        scene.frame_set(frame)
+        scene.update()
+        for iter in iter_all:
+            iter.send(frame)
+    scene.frame_set(frame_back)
+    yield tuple(iter.send(None) for iter in iter_all)
+
+
+# XXX visual keying is actually always considered as True in this code...
+def bake_action_iter(
+        obj,
+        *,
+        action,
+        only_selected=False,
+        do_pose=True,
+        do_object=True,
+        do_visual_keying=True,
+        do_constraint_clear=False,
+        do_parents_clear=False,
+        do_clean=False
+):
+    """
+    An coroutine that bakes action for a single object.
+
+    :arg obj: Object to bake.
+    :type obj: :class:`bpy.types.Object`
+    :arg action: An action to bake the data into, or None for a new action
+       to be created.
+    :type action: :class:`bpy.types.Action` or None
     :arg only_selected: Only bake selected bones.
     :type only_selected: bool
     :arg do_pose: Bake pose channels.
@@ -63,14 +146,10 @@ def bake_action(frame_start,
     :type do_parents_clear: bool
     :arg do_clean: Remove redundant keyframes after baking.
     :type do_clean: bool
-    :arg action: An action to bake the data into, or None for a new action
-       to be created.
-    :type action: :class:`bpy.types.Action` or None
 
     :return: an action or None
     :rtype: :class:`bpy.types.Action`
     """
-
     # -------------------------------------------------------------------------
     # Helper Functions and vars
 
@@ -112,34 +191,32 @@ def bake_action(frame_start,
     # -------------------------------------------------------------------------
     # Setup the Context
 
-    # TODO, pass data rather then grabbing from the context!
-    scene = bpy.context.scene
-    obj = bpy.context.object
-    frame_back = scene.frame_current
-
     if obj.pose is None:
         do_pose = False
 
     if not (do_pose or do_object):
-        return None
+        raise Exception("Pose and object baking is disabled, no action needed")
 
     pose_info = []
     obj_info = []
 
     options = {'INSERTKEY_NEEDED'}
 
-    frame_range = range(frame_start, frame_end + 1, frame_step)
-
     # -------------------------------------------------------------------------
     # Collect transformations
 
-    for f in frame_range:
-        scene.frame_set(f)
-        scene.update()
+    while True:
+        # Caller is responsible for setting the frame and updating the scene.
+        frame = yield None
+
+        # Signal we're done!
+        if frame is None:
+            break
+
         if do_pose:
-            pose_info.append(pose_frame_info(obj))
+            pose_info.append((frame, pose_frame_info(obj)))
         if do_object:
-            obj_info.append(obj_frame_info(obj))
+            obj_info.append((frame, obj_frame_info(obj)))
 
     # -------------------------------------------------------------------------
     # Clean (store initial data)
@@ -178,7 +255,7 @@ def bake_action(frame_start,
             # create compatible eulers
             euler_prev = None
 
-            for (f, matrix) in zip(frame_range, pose_info):
+            for (f, matrix) in pose_info:
                 pbone.matrix_basis = matrix[name].copy()
 
                 pbone.keyframe_insert("location", -1, f, name, options)
@@ -210,7 +287,7 @@ def bake_action(frame_start,
         # create compatible eulers
         euler_prev = None
 
-        for (f, matrix) in zip(frame_range, obj_info):
+        for (f, matrix) in obj_info:
             name = "Action Bake"  # XXX: placeholder
             obj.matrix_basis = matrix
 
@@ -261,6 +338,4 @@ def bake_action(frame_start,
                 else:
                     i += 1
 
-    scene.frame_set(frame_back)
-
-    return action
+    yield action
diff --git a/release/scripts/modules/keyingsets_utils.py b/release/scripts/modules/keyingsets_utils.py
index 8cef64c3590..7ce5f3e029b 100644
--- a/release/scripts/modules/keyingsets_utils.py
+++ b/release/scripts/modules/keyingsets_utils.py
@@ -232,7 +232,7 @@ bbone_property_ids = (
     "bbone_scalein",
     "bbone_scaleout",
 
-    # NOTE: These are in the nested bone struct 
+    # NOTE: These are in the nested bone struct
     # Do it this way to force them to be included
     # in whatever actions are being keyed here
     "bone.bbone_in",
diff --git a/release/scripts/modules/nodeitems_utils.py b/release/scripts/modules/nodeitems_utils.py
index 904062c36cd..117e35dd028 100644
--- a/release/scripts/modules/nodeitems_utils.py
+++ b/release/scripts/modules/nodeitems_utils.py
@@ -59,7 +59,11 @@ class NodeItem:
             return self._label
         else:
             # if no custom label is defined, fall back to the node type UI name
-            return getattr(bpy.types, self.nodetype).bl_rna.name
+            bl_rna = bpy.types.Node.bl_rna_get_subclass(self.nodetype)
+            if bl_rna is not None:
+                return bl_rna.name
+            else:
+                return "Unknown"
 
     @property
     def translation_context(self):
@@ -67,7 +71,11 @@ class NodeItem:
             return bpy.app.translations.contexts.default
         else:
             # if no custom label is defined, fall back to the node type UI name
-            return getattr(bpy.types, self.nodetype).bl_rna.translation_context
+            bl_rna = bpy.types.Node.bl_rna_get_subclass(self.nodetype)
+            if bl_rna is not None:
+                return bl_rna.translation_context
+            else:
+                return bpy.app.translations.contexts.default
 
     # NB: is a staticmethod because called with an explicit self argument
     # NodeItemCustom sets this as a variable attribute in __init__
diff --git a/release/scripts/modules/rna_info.py b/release/scripts/modules/rna_info.py
index 94f5e9e17bb..1a3d0698871 100644
--- a/release/scripts/modules/rna_info.py
+++ b/release/scripts/modules/rna_info.py
@@ -82,6 +82,32 @@ def float_as_string(f):
     return val_str
 
 
+def get_py_class_from_rna(rna_type):
+    """ Get's the Python type for a class which isn't necessarily added to ``bpy.types``.
+    """
+    identifier = rna_type.identifier
+    py_class = getattr(bpy.types, identifier, None)
+    if py_class is not None:
+        return py_class
+
+    def subclasses_recurse(cls):
+        for c in cls.__subclasses__():
+            # is_registered
+            if "bl_rna" in cls.__dict__:
+                yield c
+            yield from subclasses_recurse(c)
+
+    while py_class is None:
+        base = rna_type.base
+        if base is None:
+            raise Exception("can't find type")
+        py_class_base = getattr(bpy.types, base.identifier, None)
+        if py_class_base is not None:
+            for cls in subclasses_recurse(py_class_base):
+                if cls.bl_rna.identifier == identifier:
+                    return cls
+
+
 class InfoStructRNA:
     __slots__ = (
         "bl_rna",
@@ -146,7 +172,8 @@ class InfoStructRNA:
 
     def _get_py_visible_attrs(self):
         attrs = []
-        py_class = getattr(bpy.types, self.identifier)
+        py_class = get_py_class_from_rna(self.bl_rna)
+
         for attr_str in dir(py_class):
             if attr_str.startswith("_"):
                 continue
@@ -210,6 +237,7 @@ class InfoPropertyRNA:
         "min",
         "max",
         "array_length",
+        "array_dimensions",
         "collection_type",
         "type",
         "fixed_type",
@@ -235,6 +263,7 @@ class InfoPropertyRNA:
         self.min = getattr(rna_prop, "hard_min", -1)
         self.max = getattr(rna_prop, "hard_max", -1)
         self.array_length = getattr(rna_prop, "array_length", 0)
+        self.array_dimensions = getattr(rna_prop, "array_dimensions", ())[:]
         self.collection_type = GetInfoStructRNA(rna_prop.srna)
         self.is_required = rna_prop.is_required
         self.is_readonly = rna_prop.is_readonly
@@ -254,13 +283,21 @@ class InfoPropertyRNA:
         else:
             self.is_enum_flag = False
 
+        self.default_str = ""  # fallback
+
         if self.array_length:
             self.default = tuple(getattr(rna_prop, "default_array", ()))
+            if self.array_dimensions[1] != 0:  # Multi-dimensional array, convert default flat one accordingly.
+                self.default_str = tuple(float_as_string(v) if self.type == "float" else str(v) for v in self.default)
+                for dim in self.array_dimensions[::-1]:
+                    if dim != 0:
+                        self.default = tuple(zip(*((iter(self.default),) * dim)))
+                        self.default_str = tuple("(%s)" % ", ".join(s for s in b) for b in zip(*((iter(self.default_str),) * dim)))
+                self.default_str = self.default_str[0]
         elif self.type == "enum" and self.is_enum_flag:
             self.default = getattr(rna_prop, "default_flag", set())
         else:
             self.default = getattr(rna_prop, "default", None)
-        self.default_str = ""  # fallback
 
         if self.type == "pointer":
             # pointer has no default, just set as None
@@ -275,13 +312,12 @@ class InfoPropertyRNA:
             else:
                 self.default_str = "'%s'" % self.default
         elif self.array_length:
-            self.default_str = ''
-            # special case for floats
-            if len(self.default) > 0:
-                if self.type == "float":
+            if self.array_dimensions[1] == 0:  # single dimension array, we already took care of multi-dimensions ones.
+                # special case for floats
+                if self.type == "float" and len(self.default) > 0:
                     self.default_str = "(%s)" % ", ".join(float_as_string(f) for f in self.default)
-            if not self.default_str:
-                self.default_str = str(self.default)
+                else:
+                    self.default_str = str(self.default)
         else:
             if self.type == "float":
                 self.default_str = float_as_string(self.default)
@@ -301,7 +337,10 @@ class InfoPropertyRNA:
         if self.fixed_type is None:
             type_str += self.type
             if self.array_length:
-                type_str += " array of %d items" % (self.array_length)
+                if self.array_dimensions[1] != 0:
+                    type_str += " multi-dimensional array of %s items" % (" * ".join(str(d) for d in self.array_dimensions if d != 0))
+                else:
+                    type_str += " array of %d items" % (self.array_length)
 
             if self.type in {"float", "int"}:
                 type_str += " in [%s, %s]" % (range_str(self.min), range_str(self.max))
@@ -437,7 +476,11 @@ class InfoOperatorRNA:
             self.args.append(prop)
 
     def get_location(self):
-        op_class = getattr(bpy.types, self.identifier)
+        try:
+            op_class = getattr(bpy.types, self.identifier)
+        except AttributeError:
+            # defined in C.
+            return None, None
         op_func = getattr(op_class, "execute", None)
         if op_func is None:
             op_func = getattr(op_class, "invoke", None)
@@ -601,7 +644,7 @@ def BuildRNAInfo():
 
             for rna_prop_ptr in (getattr(rna_prop, "fixed_type", None), getattr(rna_prop, "srna", None)):
                 # Does this property point to me?
-                if rna_prop_ptr:
+                if rna_prop_ptr and rna_prop_ptr.identifier in rna_references_dict:
                     rna_references_dict[rna_prop_ptr.identifier].append(
                         "%s.%s" % (rna_struct_path, rna_prop_identifier))
 
@@ -614,7 +657,7 @@ def BuildRNAInfo():
                 rna_prop_ptr = getattr(rna_prop, "fixed_type", None)
 
                 # Does this property point to me?
-                if rna_prop_ptr:
+                if rna_prop_ptr and rna_prop_ptr.identifier in rna_references_dict:
                     rna_references_dict[rna_prop_ptr.identifier].append(
                         "%s.%s" % (rna_struct_path, rna_func.identifier))
 
@@ -649,16 +692,22 @@ def BuildRNAInfo():
     for rna_info_prop in InfoFunctionRNA.global_lookup.values():
         rna_info_prop.build()
 
-    for rna_info in InfoStructRNA.global_lookup.values():
-        rna_info.build()
-        for prop in rna_info.properties:
-            prop.build()
-        for func in rna_info.functions:
-            func.build()
-            for prop in func.args:
-                prop.build()
-            for prop in func.return_values:
+    done_keys = set()
+    new_keys = set(InfoStructRNA.global_lookup.keys())
+    while new_keys:
+        for rna_key in new_keys:
+            rna_info = InfoStructRNA.global_lookup[rna_key]
+            rna_info.build()
+            for prop in rna_info.properties:
                 prop.build()
+            for func in rna_info.functions:
+                func.build()
+                for prop in func.args:
+                    prop.build()
+                for prop in func.return_values:
+                    prop.build()
+        done_keys |= new_keys
+        new_keys = set(InfoStructRNA.global_lookup.keys()) - done_keys
 
     # there are too many invalid defaults, unless we intend to fix, leave this off
     if 0:
diff --git a/release/scripts/modules/rna_keymap_ui.py b/release/scripts/modules/rna_keymap_ui.py
index a1a4e5b8763..aa1aa4925a3 100644
--- a/release/scripts/modules/rna_keymap_ui.py
+++ b/release/scripts/modules/rna_keymap_ui.py
@@ -230,6 +230,7 @@ def draw_filtered(display_keymaps, filter_type, filter_text, layout):
                 "`": 'ACCENT_GRAVE',
                 "*": 'NUMPAD_ASTERIX',
                 "/": 'NUMPAD_SLASH',
+                '+': 'NUMPAD_PLUS',
                 "RMB": 'RIGHTMOUSE',
                 "LMB": 'LEFTMOUSE',
                 "MMB": 'MIDDLEMOUSE',
diff --git a/release/scripts/presets/cycles/integrator/direct_light.py b/release/scripts/presets/cycles/integrator/direct_light.py
index 12b332cb431..701aa10d556 100644
--- a/release/scripts/presets/cycles/integrator/direct_light.py
+++ b/release/scripts/presets/cycles/integrator/direct_light.py
@@ -2,12 +2,10 @@ import bpy
 cycles = bpy.context.scene.cycles
 
 cycles.max_bounces = 8
-cycles.min_bounces = 8
 cycles.caustics_reflective = False
 cycles.caustics_refractive = False
 cycles.diffuse_bounces = 0
 cycles.glossy_bounces = 1
 cycles.transmission_bounces = 2
 cycles.volume_bounces = 0
-cycles.transparent_min_bounces = 8
 cycles.transparent_max_bounces = 8
diff --git a/release/scripts/presets/cycles/integrator/full_global_illumination.py b/release/scripts/presets/cycles/integrator/full_global_illumination.py
index 69fa6e735bd..a03c6c8bd64 100644
--- a/release/scripts/presets/cycles/integrator/full_global_illumination.py
+++ b/release/scripts/presets/cycles/integrator/full_global_illumination.py
@@ -2,12 +2,10 @@ import bpy
 cycles = bpy.context.scene.cycles
 
 cycles.max_bounces = 128
-cycles.min_bounces = 3
 cycles.caustics_reflective = True
 cycles.caustics_refractive = True
 cycles.diffuse_bounces = 128
 cycles.glossy_bounces = 128
 cycles.transmission_bounces = 128
 cycles.volume_bounces = 128
-cycles.transparent_min_bounces = 8
 cycles.transparent_max_bounces = 128
diff --git a/release/scripts/presets/cycles/integrator/limited_global_illumination.py b/release/scripts/presets/cycles/integrator/limited_global_illumination.py
index 22a8478d23b..d37bf46c705 100644
--- a/release/scripts/presets/cycles/integrator/limited_global_illumination.py
+++ b/release/scripts/presets/cycles/integrator/limited_global_illumination.py
@@ -2,12 +2,10 @@ import bpy
 cycles = bpy.context.scene.cycles
 
 cycles.max_bounces = 8
-cycles.min_bounces = 3
 cycles.caustics_reflective = False
 cycles.caustics_refractive = False
 cycles.diffuse_bounces = 1
 cycles.glossy_bounces = 4
 cycles.transmission_bounces = 8
 cycles.volume_bounces = 2
-cycles.transparent_min_bounces = 8
 cycles.transparent_max_bounces = 8
diff --git a/release/scripts/presets/cycles/sampling/final.py b/release/scripts/presets/cycles/sampling/final.py
index d03423b6c2e..f1222d927c1 100644
--- a/release/scripts/presets/cycles/sampling/final.py
+++ b/release/scripts/presets/cycles/sampling/final.py
@@ -1,20 +1,18 @@
 import bpy
 cycles = bpy.context.scene.cycles
 
-cycles.use_square_samples = True
-
 # Path Trace
-cycles.samples = 24
-cycles.preview_samples = 12
+cycles.samples = 512
+cycles.preview_samples = 128
 
 # Branched Path Trace
-cycles.aa_samples = 8
-cycles.preview_aa_samples = 4
+cycles.aa_samples = 128
+cycles.preview_aa_samples = 32
 
-cycles.diffuse_samples = 3
-cycles.glossy_samples = 2
-cycles.transmission_samples = 2
+cycles.diffuse_samples = 4
+cycles.glossy_samples = 4
+cycles.transmission_samples = 4
 cycles.ao_samples = 1
-cycles.mesh_light_samples = 2
-cycles.subsurface_samples = 2
-cycles.volume_samples = 2
+cycles.mesh_light_samples = 4
+cycles.subsurface_samples = 4
+cycles.volume_samples = 4
diff --git a/release/scripts/presets/cycles/sampling/preview.py b/release/scripts/presets/cycles/sampling/preview.py
index 5f071c7474d..c16449e2c8f 100644
--- a/release/scripts/presets/cycles/sampling/preview.py
+++ b/release/scripts/presets/cycles/sampling/preview.py
@@ -1,20 +1,18 @@
 import bpy
 cycles = bpy.context.scene.cycles
 
-cycles.use_square_samples = True
-
 # Path Trace
-cycles.samples = 12
-cycles.preview_samples = 6
+cycles.samples = 128
+cycles.preview_samples = 32
 
 # Branched Path Trace
-cycles.aa_samples = 4
-cycles.preview_aa_samples = 2
+cycles.aa_samples = 32
+cycles.preview_aa_samples = 4
 
-cycles.diffuse_samples = 3
-cycles.glossy_samples = 2
-cycles.transmission_samples = 2
+cycles.diffuse_samples = 4
+cycles.glossy_samples = 4
+cycles.transmission_samples = 4
 cycles.ao_samples = 1
-cycles.mesh_light_samples = 2
-cycles.subsurface_samples = 2
-cycles.volume_samples = 2
+cycles.mesh_light_samples = 4
+cycles.subsurface_samples = 4
+cycles.volume_samples = 4
diff --git a/release/scripts/presets/ffmpeg/DVD (note_colon_ this changes render resolution).py b/release/scripts/presets/ffmpeg/DVD_(note_colon__this_changes_render_resolution).py
index d858bd70836..d858bd70836 100644
--- a/release/scripts/presets/ffmpeg/DVD (note_colon_ this changes render resolution).py
+++ b/release/scripts/presets/ffmpeg/DVD_(note_colon__this_changes_render_resolution).py
diff --git a/release/scripts/presets/ffmpeg/h264 in MP4.py b/release/scripts/presets/ffmpeg/h264_in_MP4.py
index 0e9c32c4878..0e9c32c4878 100644
--- a/release/scripts/presets/ffmpeg/h264 in MP4.py
+++ b/release/scripts/presets/ffmpeg/h264_in_MP4.py
diff --git a/release/scripts/presets/ffmpeg/h264 in Matroska.py b/release/scripts/presets/ffmpeg/h264_in_Matroska.py
index 1fe066dc4bf..1fe066dc4bf 100644
--- a/release/scripts/presets/ffmpeg/h264 in Matroska.py
+++ b/release/scripts/presets/ffmpeg/h264_in_Matroska.py
diff --git a/release/scripts/presets/ffmpeg/h264 in Matroska for scrubbing.py b/release/scripts/presets/ffmpeg/h264_in_Matroska_for_scrubbing.py
index eb1889d272f..eb1889d272f 100644
--- a/release/scripts/presets/ffmpeg/h264 in Matroska for scrubbing.py
+++ b/release/scripts/presets/ffmpeg/h264_in_Matroska_for_scrubbing.py
diff --git a/release/scripts/presets/interface_theme/dark_blue_gradient.xml b/release/scripts/presets/interface_theme/dark_blue_gradient.xml
index d3d0f5bb522..d226f8531b2 100644
--- a/release/scripts/presets/interface_theme/dark_blue_gradient.xml
+++ b/release/scripts/presets/interface_theme/dark_blue_gradient.xml
@@ -110,7 +110,7 @@
                              inner="#39424bcc"
                              inner_sel="#667686bf"
                              item="#191919ff"
-                             text="#000000"
+                             text="#b8b8b8"
                              text_sel="#ffffff"
                              show_shaded="TRUE"
                              shadetop="25"
diff --git a/release/scripts/presets/interface_theme/elsyiun.xml b/release/scripts/presets/interface_theme/elsyiun.xml
index 7a3d5146636..b9292856fe9 100644
--- a/release/scripts/presets/interface_theme/elsyiun.xml
+++ b/release/scripts/presets/interface_theme/elsyiun.xml
@@ -110,7 +110,7 @@
                              inner="#4b4b4bff"
                              inner_sel="#646464ff"
                              item="#191919ff"
-                             text="#000000"
+                             text="#b8b8b8"
                              text_sel="#ffffff"
                              show_shaded="TRUE"
                              shadetop="0"
diff --git a/release/scripts/presets/interface_theme/science_lab.xml b/release/scripts/presets/interface_theme/science_lab.xml
index 9341e945375..2fe4cf99e41 100644
--- a/release/scripts/presets/interface_theme/science_lab.xml
+++ b/release/scripts/presets/interface_theme/science_lab.xml
@@ -110,7 +110,7 @@
                              inner="#303030ff"
                              inner_sel="#678db2ff"
                              item="#191919ff"
-                             text="#272727"
+                             text="#e6f1ff"
                              text_sel="#ffffff"
                              show_shaded="FALSE"
                              shadetop="0"
diff --git a/release/scripts/startup/bl_operators/anim.py b/release/scripts/startup/bl_operators/anim.py
index 02fb05e29eb..0632f9bc3ca 100644
--- a/release/scripts/startup/bl_operators/anim.py
+++ b/release/scripts/startup/bl_operators/anim.py
@@ -137,6 +137,9 @@ class ANIM_OT_keying_set_export(Operator):
                         break
                 else:
                     self.report({'WARN'}, "Could not find scene using Compositor Node Tree - %s" % (ksp.id))
+            elif ksp.id.bl_rna.name == "Key":
+                # "keys" conflicts with a Python keyword, hence the simple solution won't work
+                id_bpy_path = "bpy.data.shape_keys[\"%s\"]" % (ksp.id.name)
             else:
                 idtype_list = ksp.id.bl_rna.name.lower() + "s"
                 id_bpy_path = "bpy.data.%s[\"%s\"]" % (idtype_list, ksp.id.name)
@@ -195,7 +198,7 @@ class ANIM_OT_keying_set_export(Operator):
 
 
 class BakeAction(Operator):
-    """Bake object/pose loc/scale/rotation animation to a new action"""
+    """Bake all selected objects loc/scale/rotation animation to an action"""
     bl_idname = "nla.bake"
     bl_label = "Bake Action"
     bl_options = {'REGISTER', 'UNDO'}
@@ -219,7 +222,7 @@ class BakeAction(Operator):
             default=1,
             )
     only_selected = BoolProperty(
-            name="Only Selected",
+            name="Only Selected Bones",
             description="Only key selected bones (Pose baking only)",
             default=True,
             )
@@ -255,29 +258,27 @@ class BakeAction(Operator):
             )
 
     def execute(self, context):
-
         from bpy_extras import anim_utils
-
-        action = None
-        if self.use_current_action:
-            obj = context.object
-            if obj.animation_data:
-                action = obj.animation_data.action
-
-        action = anim_utils.bake_action(self.frame_start,
-                                        self.frame_end,
-                                        frame_step=self.step,
-                                        only_selected=self.only_selected,
-                                        do_pose='POSE' in self.bake_types,
-                                        do_object='OBJECT' in self.bake_types,
-                                        do_visual_keying=self.visual_keying,
-                                        do_constraint_clear=self.clear_constraints,
-                                        do_parents_clear=self.clear_parents,
-                                        do_clean=True,
-                                        action=action,
-                                        )
-
-        if action is None:
+        objects = context.selected_editable_objects
+        object_action_pairs = (
+            [(obj, getattr(obj.animation_data, "action", None)) for obj in objects]
+            if self.use_current_action else
+            [(obj, None) for obj in objects]
+        )
+
+        actions = anim_utils.bake_action_objects(
+            object_action_pairs,
+            frames=range(self.frame_start, self.frame_end + 1, self.step),
+            only_selected=self.only_selected,
+            do_pose='POSE' in self.bake_types,
+            do_object='OBJECT' in self.bake_types,
+            do_visual_keying=self.visual_keying,
+            do_constraint_clear=self.clear_constraints,
+            do_parents_clear=self.clear_parents,
+            do_clean=True,
+        )
+
+        if not any(actions):
             self.report({'INFO'}, "Nothing to bake")
             return {'CANCELLED'}
 
diff --git a/release/scripts/startup/bl_operators/clip.py b/release/scripts/startup/bl_operators/clip.py
index d8ef9e1f3ef..f63b0495d02 100644
--- a/release/scripts/startup/bl_operators/clip.py
+++ b/release/scripts/startup/bl_operators/clip.py
@@ -210,7 +210,7 @@ class CLIP_OT_set_active_clip(bpy.types.Operator):
     @classmethod
     def poll(cls, context):
         space = context.space_data
-        return space.type == 'CLIP_EDITOR'
+        return space.type == 'CLIP_EDITOR' and space.clip
 
     def execute(self, context):
         clip = context.space_data.clip
@@ -254,6 +254,11 @@ class CLIP_OT_track_to_empty(Operator):
         constraint.object = tracking_object.name
         constraint.camera = CLIP_camera_for_clip(context, clip)
 
+    @classmethod
+    def poll(cls, context):
+        space = context.space_data
+        return space.type == 'CLIP_EDITOR' and space.clip
+
     def execute(self, context):
         sc = context.space_data
         clip = sc.clip
diff --git a/release/scripts/startup/bl_operators/object_align.py b/release/scripts/startup/bl_operators/object_align.py
index 1539ffb3545..b7d3866989d 100644
--- a/release/scripts/startup/bl_operators/object_align.py
+++ b/release/scripts/startup/bl_operators/object_align.py
@@ -131,6 +131,11 @@ def align_objects(context,
 
     cursor = (space if space and space.type == 'VIEW_3D' else scene).cursor_location
 
+    # We are accessing runtime data such as evaluated bounding box, so we need to
+    # be sure it is properly updated and valid (bounding box might be lost on operator
+    # redo).
+    scene.update()
+
     Left_Front_Up_SEL = [0.0, 0.0, 0.0]
     Right_Back_Down_SEL = [0.0, 0.0, 0.0]
 
diff --git a/release/scripts/startup/bl_operators/uvcalc_smart_project.py b/release/scripts/startup/bl_operators/uvcalc_smart_project.py
index d9a4afea5cc..0ae600c8046 100644
--- a/release/scripts/startup/bl_operators/uvcalc_smart_project.py
+++ b/release/scripts/startup/bl_operators/uvcalc_smart_project.py
@@ -723,7 +723,7 @@ def main(context,
     global USER_FILL_HOLES_QUALITY
     global USER_STRETCH_ASPECT
     global USER_ISLAND_MARGIN
-    
+
     from math import cos
     import time
 
@@ -747,7 +747,7 @@ def main(context,
     USER_FILL_HOLES = 0
     USER_FILL_HOLES_QUALITY = 50 # Only for hole filling.
     USER_VIEW_INIT = 0 # Only for hole filling.
-    
+
     is_editmode = (context.active_object.mode == 'EDIT')
     if is_editmode:
         bpy.ops.uv.reveal()
diff --git a/release/scripts/startup/bl_ui/properties_animviz.py b/release/scripts/startup/bl_ui/properties_animviz.py
index 43c01822b58..9782d5a072c 100644
--- a/release/scripts/startup/bl_ui/properties_animviz.py
+++ b/release/scripts/startup/bl_ui/properties_animviz.py
@@ -87,11 +87,11 @@ class MotionPathButtonsPanel:
         col.label(text="Show:")
         col.prop(mps, "show_frame_numbers", text="Frame Numbers")
         if mpath is not None:
-            col.prop(mpath, "lines", text='Lines')
-            col.prop(mpath, "line_thickness", text='Thickness')
+            col.prop(mpath, "lines", text="Lines")
+            col.prop(mpath, "line_thickness", text="Thickness")
 
         col = split.column()
-        col.label('')
+        col.label("")
         col.prop(mps, "show_keyframe_highlight", text="Keyframes")
         sub = col.column()
         sub.enabled = mps.show_keyframe_highlight
@@ -102,10 +102,10 @@ class MotionPathButtonsPanel:
         # Customize path
         if mpath is not None:
             row = layout.row(align=True)
-            row.prop(mpath, "use_custom_color", text='', toggle=True, icon='COLOR')
+            row.prop(mpath, "use_custom_color", text="", toggle=True, icon='COLOR')
             sub = row.row(align=True)
             sub.enabled = mpath.use_custom_color
-            sub.prop(mpath, "color", text='')
+            sub.prop(mpath, "color", text="")
 
 
 # FIXME: this panel still needs to be ported so that it will work correctly with animviz
diff --git a/release/scripts/startup/bl_ui/properties_constraint.py b/release/scripts/startup/bl_ui/properties_constraint.py
index 00892d5f85b..9b61101778f 100644
--- a/release/scripts/startup/bl_ui/properties_constraint.py
+++ b/release/scripts/startup/bl_ui/properties_constraint.py
@@ -886,10 +886,10 @@ class ConstraintButtonsPanel:
         box.template_cache_file(con, "cache_file")
 
         cache_file = con.cache_file
-        
+
         layout.label(text="Constraint Properties:")
         box = layout.box()
-        
+
         if cache_file is not None:
             box.prop_search(con, "object_path", cache_file, "object_paths")
 
diff --git a/release/scripts/startup/bl_ui/properties_data_armature.py b/release/scripts/startup/bl_ui/properties_data_armature.py
index 20038e1354a..6a13e2ddd44 100644
--- a/release/scripts/startup/bl_ui/properties_data_armature.py
+++ b/release/scripts/startup/bl_ui/properties_data_armature.py
@@ -96,7 +96,7 @@ class DATA_PT_display(ArmatureButtonsPanel, Panel):
         col.prop(arm, "use_deform_delay", text="Delay Refresh")
 
 
-class DATA_PT_bone_group_specials(Menu):
+class DATA_MT_bone_group_specials(Menu):
     bl_label = "Bone Group Specials"
 
     def draw(self, context):
@@ -130,7 +130,7 @@ class DATA_PT_bone_groups(ArmatureButtonsPanel, Panel):
         col.active = (ob.proxy is None)
         col.operator("pose.group_add", icon='ZOOMIN', text="")
         col.operator("pose.group_remove", icon='ZOOMOUT', text="")
-        col.menu("DATA_PT_bone_group_specials", icon='DOWNARROW_HLT', text="")
+        col.menu("DATA_MT_bone_group_specials", icon='DOWNARROW_HLT', text="")
         if group:
             col.separator()
             col.operator("pose.group_move", icon='TRIA_UP', text="").direction = 'UP'
@@ -180,7 +180,7 @@ class DATA_PT_pose_library(ArmatureButtonsPanel, Panel):
         if poselib:
             # warning about poselib being in an invalid state
             if len(poselib.fcurves) > 0 and len(poselib.pose_markers) == 0:
-                layout.label(icon='ERROR', text="Error: Potentially corrupt library, run 'Sanitize' operator to fix") 
+                layout.label(icon='ERROR', text="Error: Potentially corrupt library, run 'Sanitize' operator to fix")
 
             # list of poses in pose library
             row = layout.row()
@@ -337,7 +337,7 @@ classes = (
     DATA_PT_context_arm,
     DATA_PT_skeleton,
     DATA_PT_display,
-    DATA_PT_bone_group_specials,
+    DATA_MT_bone_group_specials,
     DATA_PT_bone_groups,
     DATA_PT_pose_library,
     DATA_PT_ghost,
diff --git a/release/scripts/startup/bl_ui/properties_data_lamp.py b/release/scripts/startup/bl_ui/properties_data_lamp.py
index 98aa31ac915..f9394139b42 100644
--- a/release/scripts/startup/bl_ui/properties_data_lamp.py
+++ b/release/scripts/startup/bl_ui/properties_data_lamp.py
@@ -216,7 +216,7 @@ class DATA_PT_shadow(DataButtonsPanel, Panel):
             split = layout.split()
 
             col = split.column()
-            col.label(text="Form factor sampling:")
+            col.label(text="Form Factor Sampling:")
 
             sub = col.row(align=True)
 
diff --git a/release/scripts/startup/bl_ui/properties_data_modifier.py b/release/scripts/startup/bl_ui/properties_data_modifier.py
index d72855fab6b..8f6e5f2df39 100644
--- a/release/scripts/startup/bl_ui/properties_data_modifier.py
+++ b/release/scripts/startup/bl_ui/properties_data_modifier.py
@@ -146,9 +146,10 @@ class DATA_PT_modifiers(ModifierButtonsPanel, Panel):
         layout.row().prop(md, "offset_type", expand=True)
 
     def BOOLEAN(self, layout, ob, md):
+        solver = md.solver
         if not bpy.app.build_options.mod_boolean:
-            layout.label("Built without Boolean modifier")
-            return
+            if solver == 'CARVE':
+                layout.label("Built without Carve solver")
 
         split = layout.split()
 
@@ -164,9 +165,13 @@ class DATA_PT_modifiers(ModifierButtonsPanel, Panel):
         split.column().label(text="Solver:")
         split.column().prop(md, "solver", text="")
 
-        if md.solver == 'BMESH':
+        if solver == 'BMESH':
             layout.prop(md, "double_threshold")
 
+            if bpy.app.debug:
+                layout.prop(md, "debug_options")
+
+
     def BUILD(self, layout, ob, md):
         split = layout.split()
 
@@ -381,7 +386,7 @@ class DATA_PT_modifiers(ModifierButtonsPanel, Panel):
         split = layout.split()
 
         col = split.column()
-        col.label(text="Vertex group:")
+        col.label(text="Vertex Group:")
         col.prop_search(md, "vertex_group", ob, "vertex_groups", text="")
         sub = col.column()
         sub.active = bool(md.vertex_group)
@@ -566,8 +571,8 @@ class DATA_PT_modifiers(ModifierButtonsPanel, Panel):
 
         col = split.column()
         col.label(text="Textures:")
-        col.prop(md, "use_mirror_u", text="U")
-        col.prop(md, "use_mirror_v", text="V")
+        col.prop(md, "use_mirror_u", text="Flip U")
+        col.prop(md, "use_mirror_v", text="Flip V")
 
         col = layout.column(align=True)
 
@@ -577,6 +582,10 @@ class DATA_PT_modifiers(ModifierButtonsPanel, Panel):
         if md.use_mirror_v:
             col.prop(md, "mirror_offset_v")
 
+        col = layout.column(align=True)
+        col.prop(md, "offset_u")
+        col.prop(md, "offset_v")
+
         col = layout.column()
 
         if md.use_mirror_merge is True:
@@ -747,6 +756,10 @@ class DATA_PT_modifiers(ModifierButtonsPanel, Panel):
         col.prop(md, "steps")
         col.prop(md, "render_steps")
         col.prop(md, "use_smooth_shade")
+        col.prop(md, "use_merge_vertices")
+        sub = col.column()
+        sub.active = md.use_merge_vertices
+        sub.prop(md, "merge_threshold")
 
         col = split.column()
         row = col.row()
@@ -917,9 +930,10 @@ class DATA_PT_modifiers(ModifierButtonsPanel, Panel):
 
         scene = bpy.context.scene
         engine = scene.render.engine
-        show_adaptive_options = (engine == "CYCLES" and md == ob.modifiers[-1] and
-                                 scene.cycles.feature_set == "EXPERIMENTAL")
-
+        show_adaptive_options = (
+            engine == 'CYCLES' and md == ob.modifiers[-1] and
+            scene.cycles.feature_set == 'EXPERIMENTAL'
+        )
         if show_adaptive_options:
             col.label(text="View:")
             col.prop(md, "levels", text="Levels")
diff --git a/release/scripts/startup/bl_ui/properties_freestyle.py b/release/scripts/startup/bl_ui/properties_freestyle.py
index 9c5be7624e0..3d105934bf8 100644
--- a/release/scripts/startup/bl_ui/properties_freestyle.py
+++ b/release/scripts/startup/bl_ui/properties_freestyle.py
@@ -123,7 +123,7 @@ class RENDERLAYER_PT_freestyle(RenderLayerFreestyleButtonsPanel, Panel):
         layout.active = rl.use_freestyle
 
         row = layout.row()
-        layout.prop(freestyle, "mode", text="Control mode")
+        layout.prop(freestyle, "mode", text="Control Mode")
         layout.prop(freestyle, "use_view_map_cache", text="View Map Cache")
         layout.label(text="Edge Detection Options:")
 
@@ -285,7 +285,7 @@ class RENDERLAYER_PT_freestyle_linestyle(RenderLayerFreestyleEditorButtonsPanel,
 
     def draw_modifier_box_error(self, box, modifier, message):
         row = box.row()
-        row.label(text=message, icon="ERROR")
+        row.label(text=message, icon='ERROR')
 
     def draw_modifier_common(self, box, modifier):
         row = box.row()
diff --git a/release/scripts/startup/bl_ui/properties_game.py b/release/scripts/startup/bl_ui/properties_game.py
index 636a9707ab9..277b0842b3d 100644
--- a/release/scripts/startup/bl_ui/properties_game.py
+++ b/release/scripts/startup/bl_ui/properties_game.py
@@ -90,11 +90,11 @@ class PHYSICS_PT_game_physics(PhysicsButtonsPanel, Panel):
             split = layout.split()
 
             col = split.column()
-            col.label(text="Linear velocity:")
+            col.label(text="Linear Velocity:")
             sub = col.column(align=True)
             sub.prop(game, "velocity_min", text="Minimum")
             sub.prop(game, "velocity_max", text="Maximum")
-            col.label(text="Angular velocity:")
+            col.label(text="Angular Velocity:")
             sub = col.column(align=True)
             sub.prop(game, "angular_velocity_min", text="Minimum")
             sub.prop(game, "angular_velocity_max", text="Maximum")
diff --git a/release/scripts/startup/bl_ui/properties_grease_pencil_common.py b/release/scripts/startup/bl_ui/properties_grease_pencil_common.py
index 52835a00796..2aa978a51d8 100644
--- a/release/scripts/startup/bl_ui/properties_grease_pencil_common.py
+++ b/release/scripts/startup/bl_ui/properties_grease_pencil_common.py
@@ -75,16 +75,16 @@ def gpencil_active_brush_settings_simple(context, layout):
 
     col.prop(brush, "line_width", slider=True)
     row = col.row(align=True)
-    row.prop(brush, "use_random_pressure", text='', icon='RNDCURVE')
+    row.prop(brush, "use_random_pressure", text="", icon='RNDCURVE')
     row.prop(brush, "pen_sensitivity_factor", slider=True)
-    row.prop(brush, "use_pressure", text='', icon='STYLUS_PRESSURE')
+    row.prop(brush, "use_pressure", text="", icon='STYLUS_PRESSURE')
     row = col.row(align=True)
-    row.prop(brush, "use_random_strength", text='', icon='RNDCURVE')
+    row.prop(brush, "use_random_strength", text="", icon='RNDCURVE')
     row.prop(brush, "strength", slider=True)
-    row.prop(brush, "use_strength_pressure", text='', icon='STYLUS_PRESSURE')
+    row.prop(brush, "use_strength_pressure", text="", icon='STYLUS_PRESSURE')
     row = col.row(align=True)
     row.prop(brush, "jitter", slider=True)
-    row.prop(brush, "use_jitter_pressure", text='', icon='STYLUS_PRESSURE')
+    row.prop(brush, "use_jitter_pressure", text="", icon='STYLUS_PRESSURE')
     row = col.row()
     row.prop(brush, "angle", slider=True)
     row.prop(brush, "angle_factor", text="Factor", slider=True)
@@ -340,19 +340,19 @@ class GreasePencilBrushPanel:
             row = layout.row()
             row.prop(brush, "line_width")
             row = layout.row(align=True)
-            row.prop(brush, "use_random_pressure", text='', icon='RNDCURVE')
+            row.prop(brush, "use_random_pressure", text="", icon='RNDCURVE')
             row.prop(brush, "pen_sensitivity_factor", slider=True)
-            row.prop(brush, "use_pressure", text='', icon='STYLUS_PRESSURE')
+            row.prop(brush, "use_pressure", text="", icon='STYLUS_PRESSURE')
             row = layout.row(align=True)
-            row.prop(brush, "use_random_strength", text='', icon='RNDCURVE')
+            row.prop(brush, "use_random_strength", text="", icon='RNDCURVE')
             row.prop(brush, "strength", slider=True)
-            row.prop(brush, "use_strength_pressure", text='', icon='STYLUS_PRESSURE')
+            row.prop(brush, "use_strength_pressure", text="", icon='STYLUS_PRESSURE')
             row = layout.row(align=True)
             row.prop(brush, "random_press", slider=True)
 
             row = layout.row(align=True)
             row.prop(brush, "jitter", slider=True)
-            row.prop(brush, "use_jitter_pressure", text='', icon='STYLUS_PRESSURE')
+            row.prop(brush, "use_jitter_pressure", text="", icon='STYLUS_PRESSURE')
             row = layout.row()
             row.prop(brush, "angle", slider=True)
             row.prop(brush, "angle_factor", text="Factor", slider=True)
@@ -365,7 +365,7 @@ class GreasePencilBrushPanel:
             col.separator()
             row = col.row(align=False)
             row.prop(brush, "pen_subdivision_steps")
-            row.prop(brush, "random_subdiv", text='Randomness', slider=True)
+            row.prop(brush, "random_subdiv", text="Randomness", slider=True)
 
 
 class GreasePencilStrokeSculptPanel:
@@ -463,7 +463,7 @@ class GreasePencilBrushCurvesPanel:
 
 ###############################
 
-class GPENCIL_PIE_tool_palette(Menu):
+class GPENCIL_MT_pie_tool_palette(Menu):
     """A pie menu for quick access to Grease Pencil tools"""
     bl_label = "Grease Pencil Tools"
 
@@ -487,7 +487,7 @@ class GPENCIL_PIE_tool_palette(Menu):
         # E - "Settings" Palette is included here too, since it needs to be in a stable position...
         if gpd and gpd.layers.active:
             col.separator()
-            col.operator("wm.call_menu_pie", text="Settings...", icon='SCRIPTWIN').name = "GPENCIL_PIE_settings_palette"
+            col.operator("wm.call_menu_pie", text="Settings...", icon='SCRIPTWIN').name = "GPENCIL_MT_pie_settings_palette"
 
         # Editing tools
         if gpd:
@@ -525,13 +525,13 @@ class GPENCIL_PIE_tool_palette(Menu):
                 col.operator("gpencil.delete", icon='X', text="Delete...")
 
                 # SE - More Tools
-                pie.operator("wm.call_menu_pie", text="More...").name = "GPENCIL_PIE_tools_more"
+                pie.operator("wm.call_menu_pie", text="More...").name = "GPENCIL_MT_pie_tools_more"
             else:
                 # Toggle Edit Mode
                 pie.operator("gpencil.editmode_toggle", text="Enable Stroke Editing", icon='EDIT')
 
 
-class GPENCIL_PIE_settings_palette(Menu):
+class GPENCIL_MT_pie_settings_palette(Menu):
     """A pie menu for quick access to Grease Pencil settings"""
     bl_label = "Grease Pencil Settings"
 
@@ -609,12 +609,12 @@ class GPENCIL_PIE_settings_palette(Menu):
             row = col.row()
             row.operator("gpencil.stroke_join", text="Join").type = 'JOIN'
             row.operator("gpencil.stroke_join", text="Join & Copy").type = 'JOINCOPY'
-            col.operator("gpencil.stroke_flip", text="Flip direction")
+            col.operator("gpencil.stroke_flip", text="Flip Direction")
 
-            col.prop(gpd, "show_stroke_direction", text="Show drawing direction")
+            col.prop(gpd, "show_stroke_direction", text="Show Drawing Direction")
 
 
-class GPENCIL_PIE_tools_more(Menu):
+class GPENCIL_MT_pie_tools_more(Menu):
     """A pie menu for accessing more Grease Pencil tools"""
     bl_label = "More Grease Pencil Tools"
 
@@ -643,10 +643,10 @@ class GPENCIL_PIE_tools_more(Menu):
         pie.operator("transform.tosphere", icon='MOD_MULTIRES')
 
         pie.operator("gpencil.convert", icon='OUTLINER_OB_CURVE', text="Convert...")
-        pie.operator("wm.call_menu_pie", text="Back to Main Palette...").name = "GPENCIL_PIE_tool_palette"
+        pie.operator("wm.call_menu_pie", text="Back to Main Palette...").name = "GPENCIL_MT_pie_tool_palette"
 
 
-class GPENCIL_PIE_sculpt(Menu):
+class GPENCIL_MT_pie_sculpt(Menu):
     """A pie menu for accessing Grease Pencil stroke sculpting settings"""
     bl_label = "Grease Pencil Sculpt"
 
@@ -839,8 +839,8 @@ class GPENCIL_MT_brush_specials(Menu):
 
     def draw(self, context):
         layout = self.layout
-        layout.operator("gpencil.brush_copy", icon='PASTEDOWN', text="Copy current drawing brush")
-        layout.operator("gpencil.brush_presets_create", icon='HELP', text="Create a set of predefined brushes")
+        layout.operator("gpencil.brush_copy", icon='PASTEDOWN', text="Copy Current Drawing Brush")
+        layout.operator("gpencil.brush_presets_create", icon='HELP', text="Create a Set of Predefined Brushes")
 
 
 class GPENCIL_MT_palettecolor_specials(Menu):
@@ -1158,10 +1158,10 @@ class GreasePencilToolsPanel:
 
 
 classes = (
-    GPENCIL_PIE_tool_palette,
-    GPENCIL_PIE_settings_palette,
-    GPENCIL_PIE_tools_more,
-    GPENCIL_PIE_sculpt,
+    GPENCIL_MT_pie_tool_palette,
+    GPENCIL_MT_pie_settings_palette,
+    GPENCIL_MT_pie_tools_more,
+    GPENCIL_MT_pie_sculpt,
     GPENCIL_MT_snap,
     GPENCIL_MT_gpencil_edit_specials,
     GPENCIL_UL_brush,
diff --git a/release/scripts/startup/bl_ui/properties_paint_common.py b/release/scripts/startup/bl_ui/properties_paint_common.py
index dfd20d90ec4..b79f8263e39 100644
--- a/release/scripts/startup/bl_ui/properties_paint_common.py
+++ b/release/scripts/startup/bl_ui/properties_paint_common.py
@@ -157,9 +157,9 @@ def brush_texpaint_common(panel, context, layout, brush, settings, projpaint=Fal
         col.separator()
         if projpaint:
             if settings.mode == 'MATERIAL':
-                col.prop(settings, "use_clone_layer", text="Clone from paint slot")
+                col.prop(settings, "use_clone_layer", text="Clone from Paint Slot")
             elif settings.mode == 'IMAGE':
-                col.prop(settings, "use_clone_layer", text="Clone from image/UV map")
+                col.prop(settings, "use_clone_layer", text="Clone from Image/UV Map")
 
             if settings.use_clone_layer:
                 ob = context.active_object
diff --git a/release/scripts/startup/bl_ui/properties_particle.py b/release/scripts/startup/bl_ui/properties_particle.py
index 23e7c0a6787..aa4cb0ba1e9 100644
--- a/release/scripts/startup/bl_ui/properties_particle.py
+++ b/release/scripts/startup/bl_ui/properties_particle.py
@@ -628,7 +628,7 @@ class PARTICLE_PT_physics(ParticleButtonsPanel, Panel):
                 split = layout.split()
 
                 col = split.column()
-                col.label(text="Fluid properties:")
+                col.label(text="Fluid Properties:")
                 col.prop(fluid, "stiffness", text="Stiffness")
                 col.prop(fluid, "linear_viscosity", text="Viscosity")
                 col.prop(fluid, "buoyancy", text="Buoyancy", slider=True)
@@ -749,7 +749,7 @@ class PARTICLE_PT_physics(ParticleButtonsPanel, Panel):
             if part.physics_type == 'BOIDS':
                 layout.label(text="Relations:")
             elif part.physics_type == 'FLUID':
-                layout.label(text="Fluid interaction:")
+                layout.label(text="Fluid Interaction:")
 
             row = layout.row()
             row.template_list("UI_UL_list", "particle_targets", psys, "targets",
@@ -1081,7 +1081,7 @@ class PARTICLE_PT_render(ParticleButtonsPanel, Panel):
             col = row.column()
             col.prop(part, "trail_count")
             if part.trail_count > 1:
-                col.prop(part, "use_absolute_path_time", text="Length in frames")
+                col.prop(part, "use_absolute_path_time", text="Length in Frames")
                 col = row.column()
                 col.prop(part, "path_end", text="Length", slider=not part.use_absolute_path_time)
                 col.prop(part, "length_random", text="Random", slider=True)
diff --git a/release/scripts/startup/bl_ui/properties_physics_common.py b/release/scripts/startup/bl_ui/properties_physics_common.py
index 0b98d8738dc..73d3d5fc755 100644
--- a/release/scripts/startup/bl_ui/properties_physics_common.py
+++ b/release/scripts/startup/bl_ui/properties_physics_common.py
@@ -79,7 +79,7 @@ class PHYSICS_PT_add(PhysicButtonsPanel, Panel):
 
         col = split.column()
 
-        if obj.type in {'MESH', 'LATTICE', 'CURVE'}:
+        if obj.type in {'MESH', 'LATTICE', 'CURVE', 'SURFACE', 'FONT'}:
             physics_add(self, col, context.soft_body, "Soft Body", 'SOFT_BODY', 'MOD_SOFT', True)
 
         if obj.type == 'MESH':
diff --git a/release/scripts/startup/bl_ui/properties_physics_dynamicpaint.py b/release/scripts/startup/bl_ui/properties_physics_dynamicpaint.py
index cf1d4f38038..ec7287ef363 100644
--- a/release/scripts/startup/bl_ui/properties_physics_dynamicpaint.py
+++ b/release/scripts/startup/bl_ui/properties_physics_dynamicpaint.py
@@ -245,7 +245,7 @@ class PHYSICS_PT_dp_canvas_output(PhysicButtonsPanel, Panel):
 
                 # paint-map output
                 row = layout.row()
-                row.prop_search(surface, "output_name_a", ob.data, "vertex_colors", text="Paintmap layer")
+                row.prop_search(surface, "output_name_a", ob.data, "vertex_colors", text="Paintmap Layer")
                 if surface.output_exists(object=ob, index=0):
                     ic = 'ZOOMOUT'
                 else:
@@ -255,7 +255,7 @@ class PHYSICS_PT_dp_canvas_output(PhysicButtonsPanel, Panel):
 
                 # wet-map output
                 row = layout.row()
-                row.prop_search(surface, "output_name_b", ob.data, "vertex_colors", text="Wetmap layer")
+                row.prop_search(surface, "output_name_b", ob.data, "vertex_colors", text="Wetmap Layer")
                 if surface.output_exists(object=ob, index=1):
                     ic = 'ZOOMOUT'
                 else:
@@ -282,7 +282,7 @@ class PHYSICS_PT_dp_canvas_output(PhysicButtonsPanel, Panel):
             layout.prop(surface, "image_output_path", text="")
             row = layout.row()
             row.prop(surface, "image_fileformat", text="")
-            row.prop(surface, "use_premultiply", text="Premultiply alpha")
+            row.prop(surface, "use_premultiply", text="Premultiply Alpha")
 
             if surface_type == 'PAINT':
                 split = layout.split(percentage=0.4)
@@ -439,12 +439,12 @@ class PHYSICS_PT_dp_brush_source(PhysicButtonsPanel, Panel):
         if brush.paint_source == 'PARTICLE_SYSTEM':
             col.prop_search(brush, "particle_system", ob, "particle_systems", text="")
             if brush.particle_system:
-                col.label(text="Particle effect:")
+                col.label(text="Particle Effect:")
                 sub = col.column()
                 sub.active = not brush.use_particle_radius
                 sub.prop(brush, "solid_radius", text="Solid Radius")
                 col.prop(brush, "use_particle_radius", text="Use Particle's Radius")
-                col.prop(brush, "smooth_radius", text="Smooth radius")
+                col.prop(brush, "smooth_radius", text="Smooth Radius")
 
         if brush.paint_source in {'DISTANCE', 'VOLUME_DISTANCE', 'POINT'}:
             col.prop(brush, "paint_distance", text="Paint Distance")
diff --git a/release/scripts/startup/bl_ui/properties_physics_softbody.py b/release/scripts/startup/bl_ui/properties_physics_softbody.py
index 5ce4302891d..5efe105e7d8 100644
--- a/release/scripts/startup/bl_ui/properties_physics_softbody.py
+++ b/release/scripts/startup/bl_ui/properties_physics_softbody.py
@@ -26,6 +26,9 @@ from bl_ui.properties_physics_common import (
         )
 
 
+COMPAT_OB_TYPES = {'MESH', 'LATTICE', 'CURVE', 'SURFACE', 'FONT'}
+
+
 def softbody_panel_enabled(md):
     return (md.point_cache.is_baked is False)
 
@@ -39,7 +42,7 @@ class PhysicButtonsPanel:
     def poll(cls, context):
         ob = context.object
         rd = context.scene.render
-        return (ob and (ob.type == 'MESH' or ob.type == 'LATTICE'or ob.type == 'CURVE')) and (rd.engine in cls.COMPAT_ENGINES) and (context.soft_body)
+        return ob and ob.type in COMPAT_OB_TYPES and rd.engine in cls.COMPAT_ENGINES and context.soft_body
 
 
 class PHYSICS_PT_softbody(PhysicButtonsPanel, Panel):
diff --git a/release/scripts/startup/bl_ui/properties_render.py b/release/scripts/startup/bl_ui/properties_render.py
index a7e8d9273ad..2f3adf546b8 100644
--- a/release/scripts/startup/bl_ui/properties_render.py
+++ b/release/scripts/startup/bl_ui/properties_render.py
@@ -275,6 +275,7 @@ class RENDER_PT_performance(RenderButtonsPanel, Panel):
 
         col.separator()
         col.prop(rd, "preview_start_resolution")
+        col.prop(rd, "preview_pixel_size", text="")
 
         col = split.column()
         col.label(text="Memory:")
@@ -286,7 +287,7 @@ class RENDER_PT_performance(RenderButtonsPanel, Panel):
         sub.prop(rd, "use_free_image_textures")
         sub = col.column()
         sub.active = rd.use_raytrace
-        sub.label(text="Acceleration structure:")
+        sub.label(text="Acceleration Structure:")
         sub.prop(rd, "raytrace_method", text="")
         if rd.raytrace_method == 'OCTREE':
             sub.prop(rd, "octree_resolution", text="Resolution")
@@ -347,7 +348,7 @@ class RENDER_PT_stamp(RenderButtonsPanel, Panel):
         col.active = rd.use_stamp
         row = col.row()
         row.prop(rd, "stamp_font_size", text="Font Size")
-        row.prop(rd, "use_stamp_labels", text="Draw labels")
+        row.prop(rd, "use_stamp_labels", text="Draw Labels")
 
         row = col.row()
         row.column().prop(rd, "stamp_foreground", slider=True)
@@ -409,37 +410,6 @@ class RENDER_PT_output(RenderButtonsPanel, Panel):
         if rd.use_multiview:
             layout.template_image_views(image_settings)
 
-        if file_format == 'QUICKTIME':
-            quicktime = rd.quicktime
-
-            split = layout.split()
-            col = split.column()
-            col.prop(quicktime, "codec_type", text="Video Codec")
-            col.prop(quicktime, "codec_spatial_quality", text="Quality")
-
-            # Audio
-            col.prop(quicktime, "audiocodec_type", text="Audio Codec")
-            if quicktime.audiocodec_type != 'No audio':
-                split = layout.split()
-                if quicktime.audiocodec_type == 'LPCM':
-                    split.prop(quicktime, "audio_bitdepth", text="")
-
-                split.prop(quicktime, "audio_samplerate", text="")
-
-                split = layout.split()
-                col = split.column()
-                if quicktime.audiocodec_type == 'AAC':
-                    col.prop(quicktime, "audio_bitrate")
-
-                subsplit = split.split()
-                col = subsplit.column()
-
-                if quicktime.audiocodec_type == 'AAC':
-                    col.prop(quicktime, "audio_codec_isvbr")
-
-                col = subsplit.column()
-                col.prop(quicktime, "audio_resampling_hq")
-
 
 class RENDER_PT_encoding(RenderButtonsPanel, Panel):
     bl_label = "Encoding"
@@ -482,9 +452,9 @@ class RENDER_PT_encoding(RenderButtonsPanel, Panel):
         layout.prop(ffmpeg, "gopsize")
         # B-Frames
         row = layout.row()
-        row.prop(ffmpeg, "use_max_b_frames", text='Max B-frames')
+        row.prop(ffmpeg, "use_max_b_frames", text="Max B-frames")
         pbox = row.split()
-        pbox.prop(ffmpeg, "max_b_frames", text='')
+        pbox.prop(ffmpeg, "max_b_frames", text="")
         pbox.enabled = ffmpeg.use_max_b_frames
 
         split = layout.split()
diff --git a/release/scripts/startup/bl_ui/space_clip.py b/release/scripts/startup/bl_ui/space_clip.py
index 43679727992..57195d22340 100644
--- a/release/scripts/startup/bl_ui/space_clip.py
+++ b/release/scripts/startup/bl_ui/space_clip.py
@@ -1033,11 +1033,11 @@ class CLIP_PT_proxy(CLIP_PT_clip_view_panel, Panel):
         if clip.source == 'MOVIE':
             col2 = col.column()
 
-            col2.label(text="Use timecode index:")
+            col2.label(text="Use Timecode Index:")
             col2.prop(clip.proxy, "timecode", text="")
 
         col2 = col.column()
-        col2.label(text="Proxy render size:")
+        col2.label(text="Proxy Render Size:")
 
         col.prop(sc.clip_user, "proxy_render_size", text="")
 
@@ -1418,7 +1418,7 @@ class CLIP_MT_tracking_specials(Menu):
                         text="Enable Markers").action = 'ENABLE'
 
         layout.operator("clip.disable_markers",
-                        text="Disable markers").action = 'DISABLE'
+                        text="Disable Markers").action = 'DISABLE'
 
         layout.separator()
         layout.operator("clip.set_origin")
diff --git a/release/scripts/startup/bl_ui/space_image.py b/release/scripts/startup/bl_ui/space_image.py
index afb5f6277a1..9868186e39c 100644
--- a/release/scripts/startup/bl_ui/space_image.py
+++ b/release/scripts/startup/bl_ui/space_image.py
@@ -1110,7 +1110,7 @@ class IMAGE_PT_tools_paint_options(BrushButtonsPanel, Panel):
         col.prop(ups, "use_unified_color", text="Color")
 
 
-class IMAGE_UV_sculpt_curve(Panel):
+class IMAGE_PT_uv_sculpt_curve(Panel):
     bl_space_type = 'IMAGE_EDITOR'
     bl_region_type = 'TOOLS'
     bl_label = "UV Sculpt Curve"
@@ -1141,7 +1141,7 @@ class IMAGE_UV_sculpt_curve(Panel):
         row.operator("brush.curve_preset", icon='NOCURVE', text="").shape = 'MAX'
 
 
-class IMAGE_UV_sculpt(Panel, ImagePaintPanel):
+class IMAGE_PT_uv_sculpt(Panel, ImagePaintPanel):
     bl_space_type = 'IMAGE_EDITOR'
     bl_region_type = 'TOOLS'
     bl_category = "Tools"
@@ -1394,8 +1394,8 @@ classes = (
     IMAGE_PT_tools_imagepaint_symmetry,
     IMAGE_PT_tools_brush_appearance,
     IMAGE_PT_tools_paint_options,
-    IMAGE_UV_sculpt,
-    IMAGE_UV_sculpt_curve,
+    IMAGE_PT_uv_sculpt,
+    IMAGE_PT_uv_sculpt_curve,
     IMAGE_PT_view_histogram,
     IMAGE_PT_view_waveform,
     IMAGE_PT_view_vectorscope,
diff --git a/release/scripts/startup/bl_ui/space_node.py b/release/scripts/startup/bl_ui/space_node.py
index b37b3c5705a..e2056905d93 100644
--- a/release/scripts/startup/bl_ui/space_node.py
+++ b/release/scripts/startup/bl_ui/space_node.py
@@ -187,10 +187,10 @@ class NODE_MT_view(Menu):
         if context.space_data.show_backdrop:
             layout.separator()
 
-            layout.operator("node.backimage_move", text="Backdrop move")
-            layout.operator("node.backimage_zoom", text="Backdrop zoom in").factor = 1.2
-            layout.operator("node.backimage_zoom", text="Backdrop zoom out").factor = 0.83333
-            layout.operator("node.backimage_fit", text="Fit backdrop to available space")
+            layout.operator("node.backimage_move", text="Backdrop Move")
+            layout.operator("node.backimage_zoom", text="Backdrop Zoom In").factor = 1.2
+            layout.operator("node.backimage_zoom", text="Backdrop Zoom Out").factor = 0.83333
+            layout.operator("node.backimage_fit", text="Fit Backdrop to Available Space")
 
         layout.separator()
 
@@ -243,7 +243,7 @@ class NODE_MT_node(Menu):
 
         layout.separator()
 
-        layout.operator("node.join", text="Join in new Frame")
+        layout.operator("node.join", text="Join in New Frame")
         layout.operator("node.detach", text="Remove from Frame")
 
         layout.separator()
diff --git a/release/scripts/startup/bl_ui/space_outliner.py b/release/scripts/startup/bl_ui/space_outliner.py
index 4eb550bbb35..731ab3d4b14 100644
--- a/release/scripts/startup/bl_ui/space_outliner.py
+++ b/release/scripts/startup/bl_ui/space_outliner.py
@@ -56,7 +56,7 @@ class OUTLINER_HT_header(Header):
                 row.operator("anim.keyframe_delete", text="", icon='KEY_DEHLT')
             else:
                 row = layout.row()
-                row.label(text="No Keying Set active")
+                row.label(text="No Keying Set Active")
         elif space.display_mode == 'ORPHAN_DATA':
             layout.operator("outliner.orphans_purge")
 
diff --git a/release/scripts/startup/bl_ui/space_sequencer.py b/release/scripts/startup/bl_ui/space_sequencer.py
index 79bb10cefeb..06dd90685b7 100644
--- a/release/scripts/startup/bl_ui/space_sequencer.py
+++ b/release/scripts/startup/bl_ui/space_sequencer.py
@@ -43,7 +43,7 @@ def draw_color_balance(layout, color_balance):
     col.separator()
     col.separator()
     col.prop(color_balance, "lift", text="")
-    col.prop(color_balance, "invert_lift", text="Invert", icon="ARROW_LEFTRIGHT")
+    col.prop(color_balance, "invert_lift", text="Invert", icon='ARROW_LEFTRIGHT')
     split.template_color_picker(color_balance, "lift", value_slider=True,  cubic=True)
 
     box = layout.box()
@@ -53,7 +53,7 @@ def draw_color_balance(layout, color_balance):
     col.separator()
     col.separator()
     col.prop(color_balance, "gamma", text="")
-    col.prop(color_balance, "invert_gamma", text="Invert", icon="ARROW_LEFTRIGHT")
+    col.prop(color_balance, "invert_gamma", text="Invert", icon='ARROW_LEFTRIGHT')
     split.template_color_picker(color_balance, "gamma", value_slider=True, lock_luminosity=True, cubic=True)
 
     box = layout.box()
@@ -63,7 +63,7 @@ def draw_color_balance(layout, color_balance):
     col.separator()
     col.separator()
     col.prop(color_balance, "gain", text="")
-    col.prop(color_balance, "invert_gain", text="Invert", icon="ARROW_LEFTRIGHT")
+    col.prop(color_balance, "invert_gain", text="Invert", icon='ARROW_LEFTRIGHT')
     split.template_color_picker(color_balance, "gain", value_slider=True, lock_luminosity=True, cubic=True)
 
 
@@ -197,7 +197,7 @@ class SEQUENCER_MT_view(Menu):
             layout.operator_context = 'INVOKE_DEFAULT'
         if is_preview:
             layout.operator_context = 'INVOKE_REGION_PREVIEW'
-            layout.operator("sequencer.view_all_preview", text="Fit preview in window")
+            layout.operator("sequencer.view_all_preview", text="Fit Preview in Window")
 
             layout.separator()
 
@@ -246,10 +246,10 @@ class SEQUENCER_MT_select(Menu):
 
         layout.operator("sequencer.select_active_side", text="Strips to the Left").side = 'LEFT'
         layout.operator("sequencer.select_active_side", text="Strips to the Right").side = 'RIGHT'
-        props = layout.operator("sequencer.select", text="All strips to the Left")
+        props = layout.operator("sequencer.select", text="All Strips to the Left")
         props.left_right = 'LEFT'
         props.linked_time = True
-        props = layout.operator("sequencer.select", text="All strips to the Right")
+        props = layout.operator("sequencer.select", text="All Strips to the Right")
         props.left_right = 'RIGHT'
         props.linked_time = True
 
@@ -397,15 +397,15 @@ class SEQUENCER_MT_strip(Menu):
         layout.operator_context = 'INVOKE_REGION_WIN'
 
         layout.operator("transform.transform", text="Grab/Move").mode = 'TRANSLATION'
-        layout.operator("transform.transform", text="Grab/Extend from frame").mode = 'TIME_EXTEND'
+        layout.operator("transform.transform", text="Grab/Extend from Frame").mode = 'TIME_EXTEND'
         layout.operator("sequencer.gap_remove").all = False
         layout.operator("sequencer.gap_insert")
 
         #  uiItemO(layout, NULL, 0, "sequencer.strip_snap"); // TODO - add this operator
         layout.separator()
 
-        layout.operator("sequencer.cut", text="Cut (hard) at frame").type = 'HARD'
-        layout.operator("sequencer.cut", text="Cut (soft) at frame").type = 'SOFT'
+        layout.operator("sequencer.cut", text="Cut (Hard) at Frame").type = 'HARD'
+        layout.operator("sequencer.cut", text="Cut (Soft) at Frame").type = 'SOFT'
         layout.operator("sequencer.slip", text="Slip Strip Contents")
         layout.operator("sequencer.images_separate")
         layout.operator("sequencer.offset_clear")
@@ -631,7 +631,7 @@ class SEQUENCER_PT_effect(SequencerButtonsPanel, Panel):
                 if strip.use_as_speed:
                     layout.prop(strip, "speed_factor")
                 else:
-                    layout.prop(strip, "speed_factor", text="Frame number")
+                    layout.prop(strip, "speed_factor", text="Frame Number")
                     layout.prop(strip, "scale_to_length")
 
         elif strip.type == 'TRANSFORM':
@@ -698,7 +698,7 @@ class SEQUENCER_PT_effect(SequencerButtonsPanel, Panel):
                         row.label("")
             else:
                 col.separator()
-                col.label(text="Two or more channels are needed below this strip", icon="INFO")
+                col.label(text="Two or more channels are needed below this strip", icon='INFO')
 
 
         elif strip.type == 'TEXT':
@@ -728,7 +728,7 @@ class SEQUENCER_PT_effect(SequencerButtonsPanel, Panel):
         elif strip.type in {'CROSS', 'GAMMA_CROSS', 'WIPE', 'ALPHA_OVER', 'ALPHA_UNDER', 'OVER_DROP'}:
             col.prop(strip, "use_default_fade", "Default fade")
             if not strip.use_default_fade:
-                col.prop(strip, "effect_fader", text="Effect fader")
+                col.prop(strip, "effect_fader", text="Effect Fader")
         elif strip.type == 'GAUSSIAN_BLUR':
             row = col.row(align=True)
             row.prop(strip, "size_x")
@@ -784,7 +784,7 @@ class SEQUENCER_PT_input(SequencerButtonsPanel, Panel):
             split.label(text="Alpha:")
             split.prop(strip, "alpha_mode", text="")
 
-            layout.operator("sequencer.change_path", icon="FILESEL").filter_image = True
+            layout.operator("sequencer.change_path", icon='FILESEL').filter_image = True
 
         elif seq_type == 'MOVIE':
             split = layout.split(percentage=0.2)
@@ -1056,9 +1056,9 @@ class SEQUENCER_PT_proxy(SequencerButtonsPanel, Panel):
             proxy = strip.proxy
 
             flow = layout.column_flow()
-            flow.prop(sequencer, "proxy_storage", text='Storage')
+            flow.prop(sequencer, "proxy_storage", text="Storage")
             if sequencer.proxy_storage == 'PROJECT':
-                flow.prop(sequencer, "proxy_dir", text='Directory')
+                flow.prop(sequencer, "proxy_dir", text="Directory")
             else:
                 flow.prop(proxy, "use_proxy_custom_directory")
                 flow.prop(proxy, "use_proxy_custom_file")
@@ -1077,7 +1077,7 @@ class SEQUENCER_PT_proxy(SequencerButtonsPanel, Panel):
             layout.prop(proxy, "use_overwrite")
 
             col = layout.column()
-            col.prop(proxy, "quality", text="Build JPEG quality")
+            col.prop(proxy, "quality", text="Build JPEG Quality")
 
             if strip.type == 'MOVIE':
                 col = layout.column()
@@ -1101,9 +1101,6 @@ class SEQUENCER_PT_preview(SequencerButtonsPanel_Output, Panel):
         render = context.scene.render
 
         col = layout.column()
-        col.prop(render, "use_sequencer_gl_preview", text="OpenGL Preview")
-        col = layout.column()
-        #col.active = render.use_sequencer_gl_preview
         col.prop(render, "sequencer_gl_preview", text="")
 
         row = col.row()
diff --git a/release/scripts/startup/bl_ui/space_userpref.py b/release/scripts/startup/bl_ui/space_userpref.py
index 03a40085172..5ba1f0b8dcb 100644
--- a/release/scripts/startup/bl_ui/space_userpref.py
+++ b/release/scripts/startup/bl_ui/space_userpref.py
@@ -218,6 +218,7 @@ class USERPREF_PT_interface(Panel):
         col = row.column()
         col.label(text="Display:")
         col.prop(view, "ui_scale", text="Scale")
+        col.prop(view, "ui_line_width", text="Line Width")
         col.prop(view, "show_tooltips")
         col.prop(view, "show_tooltips_python")
         col.prop(view, "show_object_info", text="Object Info")
@@ -249,6 +250,7 @@ class USERPREF_PT_interface(Panel):
         col = row.column()
         col.label(text="View Manipulation:")
         col.prop(view, "use_mouse_depth_cursor")
+        col.prop(view, "use_cursor_lock_adjust")
         col.prop(view, "use_mouse_depth_navigate")
         col.prop(view, "use_zoom_to_mouse")
         col.prop(view, "use_rotate_around_active")
@@ -477,7 +479,7 @@ class USERPREF_PT_system(Panel):
         col.label(text="Sound:")
         col.row().prop(system, "audio_device", expand=False)
         sub = col.column()
-        sub.active = system.audio_device != 'NONE' and system.audio_device != 'Null'
+        sub.active = system.audio_device not in {'NONE', 'Null'}
         #sub.prop(system, "use_preview_images")
         sub.prop(system, "audio_channels", text="Channels")
         sub.prop(system, "audio_mixing_buffer", text="Mixing Buffer")
@@ -1105,29 +1107,29 @@ class USERPREF_MT_ndof_settings(Menu):
             layout.prop(input_prefs, "ndof_show_guide")
 
             layout.separator()
-            layout.label(text="Orbit style")
+            layout.label(text="Orbit Style")
             layout.row().prop(input_prefs, "ndof_view_navigate_method", text="")
             layout.row().prop(input_prefs, "ndof_view_rotate_method", text="")
             layout.separator()
-            layout.label(text="Orbit options")
+            layout.label(text="Orbit Options")
             layout.prop(input_prefs, "ndof_rotx_invert_axis")
             layout.prop(input_prefs, "ndof_roty_invert_axis")
             layout.prop(input_prefs, "ndof_rotz_invert_axis")
 
         # view2d use pan/zoom
         layout.separator()
-        layout.label(text="Pan options")
+        layout.label(text="Pan Options")
         layout.prop(input_prefs, "ndof_panx_invert_axis")
         layout.prop(input_prefs, "ndof_pany_invert_axis")
         layout.prop(input_prefs, "ndof_panz_invert_axis")
         layout.prop(input_prefs, "ndof_pan_yz_swap_axis")
 
-        layout.label(text="Zoom options")
+        layout.label(text="Zoom Options")
         layout.prop(input_prefs, "ndof_zoom_invert")
 
         if is_view3d:
             layout.separator()
-            layout.label(text="Fly/Walk options")
+            layout.label(text="Fly/Walk Options")
             layout.prop(input_prefs, "ndof_fly_helicopter", icon='NDOF_FLY')
             layout.prop(input_prefs, "ndof_lock_horizon", icon='NDOF_DOM')
 
@@ -1452,7 +1454,7 @@ class USERPREF_PT_addons(Panel):
 
                 sub = row.row()
                 sub.active = is_enabled
-                sub.label(text='%s: %s' % (info["category"], info["name"]))
+                sub.label(text="%s: %s" % (info["category"], info["name"]))
                 if info["warning"]:
                     sub.label(icon='ERROR')
 
@@ -1480,11 +1482,11 @@ class USERPREF_PT_addons(Panel):
                     if info["version"]:
                         split = colsub.row().split(percentage=0.15)
                         split.label(text="Version:")
-                        split.label(text='.'.join(str(x) for x in info["version"]), translate=False)
+                        split.label(text=".".join(str(x) for x in info["version"]), translate=False)
                     if info["warning"]:
                         split = colsub.row().split(percentage=0.15)
                         split.label(text="Warning:")
-                        split.label(text='  ' + info["warning"], icon='ERROR')
+                        split.label(text="  " + info["warning"], icon='ERROR')
 
                     user_addon = USERPREF_PT_addons.is_user_addon(mod, user_addon_paths)
                     tot_row = bool(info["wiki_url"]) + bool(user_addon)
diff --git a/release/scripts/startup/bl_ui/space_view3d.py b/release/scripts/startup/bl_ui/space_view3d.py
index 02c0f69ac82..1086f22b8da 100644
--- a/release/scripts/startup/bl_ui/space_view3d.py
+++ b/release/scripts/startup/bl_ui/space_view3d.py
@@ -55,7 +55,7 @@ class VIEW3D_HT_header(Header):
 
             # Occlude geometry
             if ((view.viewport_shade not in {'BOUNDBOX', 'WIREFRAME'} and (mode == 'PARTICLE_EDIT' or (mode == 'EDIT' and obj.type == 'MESH'))) or
-                    (mode == 'WEIGHT_PAINT')):
+                    (mode in {'WEIGHT_PAINT', 'VERTEX_PAINT'})):
                 row.prop(view, "use_occlude_geometry", text="")
 
             # Proportional editing
@@ -170,7 +170,7 @@ class VIEW3D_MT_editor_menus(Menu):
             mesh = obj.data
             if mesh.use_paint_mask:
                 layout.menu("VIEW3D_MT_select_paint_mask")
-            elif mesh.use_paint_mask_vertex and mode_string == 'PAINT_WEIGHT':
+            elif mesh.use_paint_mask_vertex and mode_string in {'PAINT_WEIGHT', 'PAINT_VERTEX'}:
                 layout.menu("VIEW3D_MT_select_paint_mask_vertex")
         elif mode_string != 'SCULPT':
             layout.menu("VIEW3D_MT_select_%s" % mode_string.lower())
@@ -294,7 +294,8 @@ class VIEW3D_MT_transform_object(VIEW3D_MT_transform_base):
         layout.operator("object.origin_set", text="Geometry to Origin").type = 'GEOMETRY_ORIGIN'
         layout.operator("object.origin_set", text="Origin to Geometry").type = 'ORIGIN_GEOMETRY'
         layout.operator("object.origin_set", text="Origin to 3D Cursor").type = 'ORIGIN_CURSOR'
-        layout.operator("object.origin_set", text="Origin to Center of Mass").type = 'ORIGIN_CENTER_OF_MASS'
+        layout.operator("object.origin_set", text="Origin to Center of Mass (Surface)").type = 'ORIGIN_CENTER_OF_MASS'
+        layout.operator("object.origin_set", text="Origin to Center of Mass (Volume)").type = 'ORIGIN_CENTER_OF_VOLUME'
         layout.separator()
 
         layout.operator("object.randomize_transform")
@@ -1710,7 +1711,7 @@ class VIEW3D_MT_brush(Menu):
 
         # skip if no active brush
         if not brush:
-            layout.label(text="No Brushes currently available", icon="INFO")
+            layout.label(text="No Brushes currently available", icon='INFO')
             return
 
         # brush paint modes
@@ -1779,6 +1780,7 @@ class VIEW3D_MT_paint_vertex(Menu):
         layout.operator("paint.vertex_color_set")
         layout.operator("paint.vertex_color_smooth")
         layout.operator("paint.vertex_color_dirt")
+        layout.operator("paint.vertex_color_from_weight")
 
         layout.separator()
 
@@ -2113,7 +2115,7 @@ class VIEW3D_MT_pose_transform(Menu):
 
         layout.separator()
 
-        layout.operator("pose.user_transforms_clear", text="Reset unkeyed")
+        layout.operator("pose.user_transforms_clear", text="Reset Unkeyed")
 
 
 class VIEW3D_MT_pose_slide(Menu):
diff --git a/release/scripts/startup/bl_ui/space_view3d_toolbar.py b/release/scripts/startup/bl_ui/space_view3d_toolbar.py
index 2e291d3d471..d260bfe3460 100644
--- a/release/scripts/startup/bl_ui/space_view3d_toolbar.py
+++ b/release/scripts/startup/bl_ui/space_view3d_toolbar.py
@@ -51,6 +51,19 @@ def draw_keyframing_tools(context, layout):
     row.operator("anim.keyframe_delete_v3d", text="Remove")
 
 
+# Used by vertex & weight paint
+def draw_vpaint_symmetry(layout, vpaint):
+    col = layout.column(align=True)
+    col.label(text="Mirror:")
+    row = col.row(align=True)
+
+    row.prop(vpaint, "use_symmetry_x", text="X", toggle=True)
+    row.prop(vpaint, "use_symmetry_y", text="Y", toggle=True)
+    row.prop(vpaint, "use_symmetry_z", text="Z", toggle=True)
+
+    col = layout.column()
+    col.prop(vpaint, "radial_symmetry", text="Radial")
+
 # ********** default tools for object-mode ****************
 
 
@@ -916,16 +929,18 @@ class VIEW3D_PT_imapaint_tools_missing(Panel, View3DPaintPanel):
                 col.separator()
                 col.label("Missing Canvas", icon='INFO')
                 col.label("Add or assign a canvas image below")
-                col.label("Canvas Image")
-                col.template_ID(toolsettings, "canvas")
+                col.label("Canvas Image:")
+                # todo this should be combinded into a single row
+                col.template_ID(toolsettings, "canvas", open="image.open")
                 col.operator("image.new", text="New").gen_context = 'PAINT_CANVAS'
 
         if toolsettings.missing_stencil:
             col.separator()
             col.label("Missing Stencil", icon='INFO')
             col.label("Add or assign a stencil image below")
-            col.label("Stencil Image")
-            col.template_ID(toolsettings, "stencil_image")
+            col.label("Stencil Image:")
+            # todo this should be combinded into a single row
+            col.template_ID(toolsettings, "stencil_image", open="image.open")
             col.operator("image.new", text="New").gen_context = 'PAINT_STENCIL'
 
 
@@ -1118,7 +1133,7 @@ class VIEW3D_PT_tools_brush(Panel, View3DPaintPanel):
 
             col.prop(brush, "vertex_tool", text="Blend")
 
-            if brush.vertex_tool == 'BLUR':
+            if brush.vertex_tool != 'SMEAR':
                 col.prop(brush, "use_accumulate")
                 col.separator()
 
@@ -1132,7 +1147,11 @@ class VIEW3D_PT_tools_brush(Panel, View3DPaintPanel):
             self.prop_unified_color_picker(col, context, brush, "color", value_slider=True)
             if settings.palette:
                 col.template_palette(settings, "palette", color=True)
-            self.prop_unified_color(col, context, brush, "color", text="")
+            row = col.row(align=True)
+            self.prop_unified_color(row, context, brush, "color", text="")
+            self.prop_unified_color(row, context, brush, "secondary_color", text="")
+            row.separator()
+            row.operator("paint.brush_colors_flip", icon='FILE_REFRESH', text="")
 
             col.separator()
             row = col.row(align=True)
@@ -1149,6 +1168,8 @@ class VIEW3D_PT_tools_brush(Panel, View3DPaintPanel):
             # row.prop(brush, "use_pressure_jitter", toggle=True, text="")
             col.separator()
             col.prop(brush, "vertex_tool", text="Blend")
+            col.prop(brush, "use_accumulate")
+            col.prop(brush, "use_alpha")
 
             col.separator()
             col.template_ID(settings, "palette", new="palette.new")
@@ -1200,20 +1221,20 @@ class VIEW3D_PT_slots_projectpaint(View3DPanel, Panel):
         ob = context.active_object
         col = layout.column()
 
-        col.label("Painting Mode")
+        col.label("Painting Mode:")
         col.prop(settings, "mode", text="")
         col.separator()
 
         if settings.mode == 'MATERIAL':
             if len(ob.material_slots) > 1:
-                col.label("Materials")
+                col.label("Materials:")
                 col.template_list("MATERIAL_UL_matslots", "layers",
                                   ob, "material_slots",
                                   ob, "active_material_index", rows=2)
 
             mat = ob.active_material
             if mat:
-                col.label("Available Paint Slots")
+                col.label("Available Paint Slots:")
                 col.template_list("TEXTURE_UL_texpaintslots", "",
                                   mat, "texture_paint_images",
                                   mat, "paint_active_slot", rows=2)
@@ -1233,16 +1254,17 @@ class VIEW3D_PT_slots_projectpaint(View3DPanel, Panel):
                         col.separator()
 
                 if slot and slot.index != -1:
-                    col.label("UV Map")
+                    col.label("UV Map:")
                     col.prop_search(slot, "uv_layer", ob.data, "uv_textures", text="")
 
         elif settings.mode == 'IMAGE':
             mesh = ob.data
             uv_text = mesh.uv_textures.active.name if mesh.uv_textures.active else ""
-            col.label("Canvas Image")
-            col.template_ID(settings, "canvas")
+            col.label("Canvas Image:")
+            # todo this should be combinded into a single row
+            col.template_ID(settings, "canvas", open="image.open")
             col.operator("image.new", text="New").gen_context = 'PAINT_CANVAS'
-            col.label("UV Map")
+            col.label("UV Map:")
             col.menu("VIEW3D_MT_tools_projectpaint_uvlayer", text=uv_text, translate=False)
 
         col.separator()
@@ -1276,14 +1298,15 @@ class VIEW3D_PT_stencil_projectpaint(View3DPanel, Panel):
         col.active = ipaint.use_stencil_layer
 
         stencil_text = mesh.uv_texture_stencil.name if mesh.uv_texture_stencil else ""
-        col.label("UV Map")
+        col.label("UV Map:")
         col.menu("VIEW3D_MT_tools_projectpaint_stencil", text=stencil_text, translate=False)
 
-        col.label("Stencil Image")
-        col.template_ID(ipaint, "stencil_image")
+        col.label("Stencil Image:")
+        # todo this should be combinded into a single row
+        col.template_ID(ipaint, "stencil_image", open="image.open")
         col.operator("image.new", text="New").gen_context = 'PAINT_STENCIL'
 
-        col.label("Visualization")
+        col.label("Visualization:")
         row = col.row(align=True)
         row.prop(ipaint, "stencil_color", text="")
         row.prop(ipaint, "invert_stencil", text="", icon='IMAGE_ALPHA')
@@ -1713,6 +1736,19 @@ class VIEW3D_PT_tools_weightpaint(View3DPanel, Panel):
         props.data_type = 'VGROUP_WEIGHTS'
 
 
+class VIEW3D_PT_tools_weightpaint_symmetry(Panel, View3DPaintPanel):
+    bl_category = "Tools"
+    bl_context = "weightpaint"
+    bl_options = {'DEFAULT_CLOSED'}
+    bl_label = "Symmetry"
+
+    def draw(self, context):
+        layout = self.layout
+        toolsettings = context.tool_settings
+        wpaint = toolsettings.weight_paint
+        draw_vpaint_symmetry(layout, wpaint)
+
+
 class VIEW3D_PT_tools_weightpaint_options(Panel, View3DPaintPanel):
     bl_category = "Options"
     bl_context = "weightpaint"
@@ -1775,6 +1811,20 @@ class VIEW3D_PT_tools_vertexpaint(Panel, View3DPaintPanel):
 #~         col.label(text="Multiply:")
 #~         col.prop(vpaint, "mul", text="")
 
+
+class VIEW3D_PT_tools_vertexpaint_symmetry(Panel, View3DPaintPanel):
+    bl_category = "Tools"
+    bl_context = "vertexpaint"
+    bl_options = {'DEFAULT_CLOSED'}
+    bl_label = "Symmetry"
+
+    def draw(self, context):
+        layout = self.layout
+        toolsettings = context.tool_settings
+        vpaint = toolsettings.vertex_paint
+        draw_vpaint_symmetry(layout, vpaint)
+
+
 # ********** default tools for texture-paint ****************
 
 
@@ -1921,7 +1971,7 @@ class VIEW3D_PT_tools_particlemode(View3DPanel, Panel):
         col = layout.column(align=True)
         if pe.is_hair:
             col.active = pe.is_editable
-            col.prop(pe, "use_emitter_deflect", text="Deflect emitter")
+            col.prop(pe, "use_emitter_deflect", text="Deflect Emitter")
             sub = col.row(align=True)
             sub.active = pe.use_emitter_deflect
             sub.prop(pe, "emitter_distance", text="Distance")
@@ -2054,8 +2104,10 @@ classes = (
     VIEW3D_PT_sculpt_symmetry,
     VIEW3D_PT_tools_brush_appearance,
     VIEW3D_PT_tools_weightpaint,
+    VIEW3D_PT_tools_weightpaint_symmetry,
     VIEW3D_PT_tools_weightpaint_options,
     VIEW3D_PT_tools_vertexpaint,
+    VIEW3D_PT_tools_vertexpaint_symmetry,
     VIEW3D_PT_tools_imagepaint_external,
     VIEW3D_PT_tools_imagepaint_symmetry,
     VIEW3D_PT_tools_projectpaint,
diff --git a/release/scripts/startup/keyingsets_builtins.py b/release/scripts/startup/keyingsets_builtins.py
index f62e3602bb9..390c043bb31 100644
--- a/release/scripts/startup/keyingsets_builtins.py
+++ b/release/scripts/startup/keyingsets_builtins.py
@@ -494,7 +494,7 @@ class BUILTIN_KSI_WholeCharacter(KeyingSetInfo):
     # bendy bone properties
     def doBBone(ksi, context, ks, pchan):
         bone = pchan.bone
-        
+
         # This check is crude, but is the best we can do for now
         # It simply adds all of these if the bbone has segments
         # (and the bone is a control bone). This may lead to some
diff --git a/release/scripts/templates_py/custom_nodes.py b/release/scripts/templates_py/custom_nodes.py
index 32c61abace7..8ca748c1d66 100644
--- a/release/scripts/templates_py/custom_nodes.py
+++ b/release/scripts/templates_py/custom_nodes.py
@@ -11,7 +11,7 @@ class MyCustomTree(NodeTree):
     # Optional identifier string. If not explicitly defined, the python class name is used.
     bl_idname = 'CustomTreeType'
     # Label for nice name display
-    bl_label = 'Custom Node Tree'
+    bl_label = "Custom Node Tree"
     # Icon identifier
     bl_icon = 'NODETREE'
 
@@ -23,24 +23,24 @@ class MyCustomSocket(NodeSocket):
     # Optional identifier string. If not explicitly defined, the python class name is used.
     bl_idname = 'CustomSocketType'
     # Label for nice name display
-    bl_label = 'Custom Node Socket'
+    bl_label = "Custom Node Socket"
 
     # Enum items list
-    my_items = [
-        ("DOWN", "Down", "Where your feet are"),
-        ("UP", "Up", "Where your head should be"),
-        ("LEFT", "Left", "Not right"),
-        ("RIGHT", "Right", "Not left")
-    ]
+    my_items = (
+        ('DOWN', "Down", "Where your feet are"),
+        ('UP', "Up", "Where your head should be"),
+        ('LEFT', "Left", "Not right"),
+        ('RIGHT', "Right", "Not left")
+    )
 
-    myEnumProperty = bpy.props.EnumProperty(name="Direction", description="Just an example", items=my_items, default='UP')
+    my_enum_prop = bpy.props.EnumProperty(name="Direction", description="Just an example", items=my_items, default='UP')
 
     # Optional function for drawing the socket input value
     def draw(self, context, layout, node, text):
         if self.is_output or self.is_linked:
             layout.label(text)
         else:
-            layout.prop(self, "myEnumProperty", text=text)
+            layout.prop(self, "my_enum_prop", text=text)
 
     # Socket color
     def draw_color(self, context, node):
@@ -63,7 +63,7 @@ class MyCustomNode(Node, MyCustomTreeNode):
     # Optional identifier string. If not explicitly defined, the python class name is used.
     bl_idname = 'CustomNodeType'
     # Label for nice name display
-    bl_label = 'Custom Node'
+    bl_label = "Custom Node"
     # Icon identifier
     bl_icon = 'SOUND'
 
@@ -71,8 +71,8 @@ class MyCustomNode(Node, MyCustomTreeNode):
     # These work just like custom properties in ID data blocks
     # Extensive information can be found under
     # http://wiki.blender.org/index.php/Doc:2.6/Manual/Extensions/Python/Properties
-    myStringProperty = bpy.props.StringProperty()
-    myFloatProperty = bpy.props.FloatProperty(default=3.1415926)
+    my_string_prop = bpy.props.StringProperty()
+    my_float_prop = bpy.props.FloatProperty(default=3.1415926)
 
     # === Optional Functions ===
     # Initialization function, called when a new node is created.
@@ -99,14 +99,14 @@ class MyCustomNode(Node, MyCustomTreeNode):
     # Additional buttons displayed on the node.
     def draw_buttons(self, context, layout):
         layout.label("Node settings")
-        layout.prop(self, "myFloatProperty")
+        layout.prop(self, "my_float_prop")
 
     # Detail buttons in the sidebar.
     # If this function is not defined, the draw_buttons function is used instead
     def draw_buttons_ext(self, context, layout):
-        layout.prop(self, "myFloatProperty")
-        # myStringProperty button will only be visible in the sidebar
-        layout.prop(self, "myStringProperty")
+        layout.prop(self, "my_float_prop")
+        # my_string_prop button will only be visible in the sidebar
+        layout.prop(self, "my_string_prop")
 
     # Optional: custom label
     # Explicit user label overrides this, but here we can define a label dynamically
@@ -122,7 +122,6 @@ class MyCustomNode(Node, MyCustomTreeNode):
 import nodeitems_utils
 from nodeitems_utils import NodeCategory, NodeItem
 
-
 # our own base class with an appropriate poll function,
 # so the categories only show up in our own tree type
 class MyNodeCategory(NodeCategory):
@@ -130,44 +129,50 @@ class MyNodeCategory(NodeCategory):
     def poll(cls, context):
         return context.space_data.tree_type == 'CustomTreeType'
 
+
 # all categories in a list
 node_categories = [
     # identifier, label, items list
-    MyNodeCategory("SOMENODES", "Some Nodes", items=[
+    MyNodeCategory('SOMENODES', "Some Nodes", items=[
         # our basic node
         NodeItem("CustomNodeType"),
-        ]),
-    MyNodeCategory("OTHERNODES", "Other Nodes", items=[
+    ]),
+    MyNodeCategory('OTHERNODES', "Other Nodes", items=[
         # the node item can have additional settings,
         # which are applied to new nodes
         # NB: settings values are stored as string expressions,
         # for this reason they should be converted to strings using repr()
         NodeItem("CustomNodeType", label="Node A", settings={
-            "myStringProperty": repr("Lorem ipsum dolor sit amet"),
-            "myFloatProperty": repr(1.0),
-            }),
+            "my_string_prop": repr("Lorem ipsum dolor sit amet"),
+            "my_float_prop": repr(1.0),
+        }),
         NodeItem("CustomNodeType", label="Node B", settings={
-            "myStringProperty": repr("consectetur adipisicing elit"),
-            "myFloatProperty": repr(2.0),
-            }),
-        ]),
-    ]
-
+            "my_string_prop": repr("consectetur adipisicing elit"),
+            "my_float_prop": repr(2.0),
+        }),
+    ]),
+]
+
+classes = (
+    MyCustomTree,
+    MyCustomSocket,
+    MyCustomNode,
+)
 
 def register():
-    bpy.utils.register_class(MyCustomTree)
-    bpy.utils.register_class(MyCustomSocket)
-    bpy.utils.register_class(MyCustomNode)
+    from bpy.utils import register_class
+    for cls in classes:
+        register_class(cls)
 
-    nodeitems_utils.register_node_categories("CUSTOM_NODES", node_categories)
+    nodeitems_utils.register_node_categories('CUSTOM_NODES', node_categories)
 
 
 def unregister():
-    nodeitems_utils.unregister_node_categories("CUSTOM_NODES")
+    nodeitems_utils.unregister_node_categories('CUSTOM_NODES')
 
-    bpy.utils.unregister_class(MyCustomTree)
-    bpy.utils.unregister_class(MyCustomSocket)
-    bpy.utils.unregister_class(MyCustomNode)
+    from bpy.utils import unregister_class
+    for cls in reversed(classes):
+        unregister_class(cls)
 
 
 if __name__ == "__main__":
diff --git a/release/scripts/templates_py/gamelogic.py b/release/scripts/templates_py/gamelogic.py
index 01ac27c56cd..e589ad43e63 100644
--- a/release/scripts/templates_py/gamelogic.py
+++ b/release/scripts/templates_py/gamelogic.py
@@ -62,7 +62,7 @@ def main():
     # adding to our objects "life" property
     """
     actu_collide = cont.sensors["collision_sens"]
-    for ob in actu_collide.objectHitList:
+    for ob in actu_collide.hitObjectList:
         # Check to see the object has this property
         if "life" in ob:
             own["life"] += ob["life"]
diff --git a/release/text/copyright.txt b/release/text/copyright.txt
index 207d6f54ea8..d0490b9ca91 100644
--- a/release/text/copyright.txt
+++ b/release/text/copyright.txt
@@ -21,7 +21,7 @@
   Subject to the provisions of the GNU GPL license, BF grants You a
   non-exclusive right to use the Software at any computer You own or use. 
   Artwork you create with the Software - whether it is images, movies, 
-  scripts, exported 3d files or the .blend files themselves - is your sole 
+  exported 3d files or the .blend files themselves - is your sole 
   property, and can be licensed or sold under any conditions you prefer. 
 
   2. Permitted copying and electronic distribution of Software
diff --git a/source/blender/quicktime/CMakeLists.txt b/release/windows/blendthumb/CMakeLists.txt
index f853c35457f..1e5f5131a36 100644
--- a/source/blender/quicktime/CMakeLists.txt
+++ b/release/windows/blendthumb/CMakeLists.txt
@@ -23,40 +23,20 @@
 #
 # ***** END GPL LICENSE BLOCK *****
 
-set(INC 
-	.
-	../avi
-	../blenkernel
-	../blenlib
-	../imbuf
-	../imbuf/intern
-	../makesdna
-	../makesrna
-	../render/extern/include
-	../windowmanager
-	../../../intern/guardedalloc
+#-----------------------------------------------------------------------------
+cmake_minimum_required(VERSION 2.8)
+project(BlendThumb)
+ 
+#Bring the headers, such as Student.h into the project
+include_directories(${ZLIB_INCLUDE})
+ 
+#Can manually add the sources using the set command as follows:
+set(SOURCES  src/BlenderThumb.cpp
+						 src/BlendThumb.def
+						 src/BlendThumb.rc
+						 src/Dll.cpp
 )
-
-set(INC_SYS
-	${QUICKTIME_INCLUDE_DIRS}
-)
-
-set(SRC
-	apple/qtkit_import.m
-	apple/qtkit_export.m
-
-	quicktime_export.h
-	quicktime_import.h
-)
-
-add_definitions(-DWITH_QUICKTIME)
-
-if(WITH_AUDASPACE)
-	add_definitions(${AUDASPACE_DEFINITIONS})
-
-	list(APPEND INC_SYS
-		${AUDASPACE_C_INCLUDE_DIRS}
-	)
-endif()
-
-blender_add_lib(bf_quicktime "${SRC}" "${INC}" "${INC_SYS}")
+ 
+add_library(BlendThumb SHARED ${SOURCES})
+target_link_libraries(BlendThumb ${ZLIB_LIBS})
+install (TARGETS BlendThumb DESTINATION bin)
diff --git a/release/windows/blendthumb/src/BlendThumb.def b/release/windows/blendthumb/src/BlendThumb.def
new file mode 100644
index 00000000000..71f9236735f
--- /dev/null
+++ b/release/windows/blendthumb/src/BlendThumb.def
@@ -0,0 +1,5 @@
+EXPORTS
+    DllGetClassObject       PRIVATE
+    DllCanUnloadNow         PRIVATE
+    DllRegisterServer       PRIVATE
+    DllUnregisterServer     PRIVATE
\ No newline at end of file
diff --git a/release/windows/blendthumb/src/BlendThumb.rc b/release/windows/blendthumb/src/BlendThumb.rc
new file mode 100644
index 00000000000..5dfd416b0c5
--- /dev/null
+++ b/release/windows/blendthumb/src/BlendThumb.rc
@@ -0,0 +1,26 @@
+#define IDR_VERSION1 1
+
+IDR_VERSION1 VERSIONINFO
+FILEVERSION 1,4,0,0
+PRODUCTVERSION 2,78,0,0
+FILEOS 0x00000004
+FILETYPE 0x00000002
+BEGIN
+  BLOCK "StringFileInfo"
+  BEGIN
+    BLOCK "FFFF04B0"
+    BEGIN
+      VALUE "FileVersion", "1.4\0"
+      VALUE "ProductVersion", "2.78\0"
+      VALUE "FileDescription", "Blender Thumbnail Handler\0"
+      VALUE "OriginalFilename", "BlendThumb.dll\0"
+      VALUE "ProductName", "Blender\0"
+      VALUE "LegalCopyright", "GPL2, 2016\0"
+    END
+  END
+  BLOCK "VarFileInfo"
+  BEGIN
+    VALUE "Translation", 0x0409, 0x04B0
+  END
+END
+
diff --git a/release/windows/blendthumb/src/BlenderThumb.cpp b/release/windows/blendthumb/src/BlenderThumb.cpp
new file mode 100644
index 00000000000..508b9f74852
--- /dev/null
+++ b/release/windows/blendthumb/src/BlenderThumb.cpp
@@ -0,0 +1,324 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#include <shlwapi.h>
+#include <thumbcache.h> // For IThumbnailProvider.
+#include <new>
+
+#pragma comment(lib, "shlwapi.lib")
+
+// this thumbnail provider implements IInitializeWithStream to enable being hosted
+// in an isolated process for robustness
+
+class CBlendThumb : public IInitializeWithStream, public IThumbnailProvider
+{
+public:
+	CBlendThumb() : _cRef(1), _pStream(NULL) {}
+
+	virtual ~CBlendThumb()
+	{
+		if (_pStream)
+		{
+			_pStream->Release();
+		}
+	}
+
+	// IUnknown
+	IFACEMETHODIMP QueryInterface(REFIID riid, void **ppv)
+	{
+		static const QITAB qit[] =
+		{
+			QITABENT(CBlendThumb, IInitializeWithStream),
+			QITABENT(CBlendThumb, IThumbnailProvider),
+			{ 0 },
+		};
+		return QISearch(this, qit, riid, ppv);
+	}
+
+	IFACEMETHODIMP_(ULONG) AddRef()
+	{
+		return InterlockedIncrement(&_cRef);
+	}
+
+	IFACEMETHODIMP_(ULONG) Release()
+	{
+		ULONG cRef = InterlockedDecrement(&_cRef);
+		if (!cRef)
+		{
+			delete this;
+		}
+		return cRef;
+	}
+
+	// IInitializeWithStream
+	IFACEMETHODIMP Initialize(IStream *pStream, DWORD grfMode);
+
+	// IThumbnailProvider
+	IFACEMETHODIMP GetThumbnail(UINT cx, HBITMAP *phbmp, WTS_ALPHATYPE *pdwAlpha);
+
+private:
+	long _cRef;
+	IStream *_pStream;	 // provided during initialization.
+};
+
+HRESULT CBlendThumb_CreateInstance(REFIID riid, void **ppv)
+{
+	CBlendThumb *pNew = new (std::nothrow) CBlendThumb();
+	HRESULT hr = pNew ? S_OK : E_OUTOFMEMORY;
+	if (SUCCEEDED(hr))
+	{
+		hr = pNew->QueryInterface(riid, ppv);
+		pNew->Release();
+	}
+	return hr;
+}
+
+// IInitializeWithStream
+IFACEMETHODIMP CBlendThumb::Initialize(IStream *pStream, DWORD)
+{
+	HRESULT hr = E_UNEXPECTED;  // can only be inited once
+	if (_pStream == NULL)
+	{
+		// take a reference to the stream if we have not been inited yet
+		hr = pStream->QueryInterface(&_pStream);
+	}
+	return hr;
+}
+
+#include <math.h>
+#include <zlib.h>
+#include "Wincodec.h"
+const unsigned char gzip_magic[3] = { 0x1f, 0x8b, 0x08 };
+
+// IThumbnailProvider
+IFACEMETHODIMP CBlendThumb::GetThumbnail(UINT cx, HBITMAP *phbmp, WTS_ALPHATYPE *pdwAlpha)
+{
+	ULONG BytesRead;
+	HRESULT hr = S_FALSE;
+	LARGE_INTEGER SeekPos;
+
+	// Compressed?	
+	unsigned char in_magic[3];
+	_pStream->Read(&in_magic,3,&BytesRead);
+	bool gzipped = true;
+	for ( int i=0; i < 3; i++ )
+		if ( in_magic[i] != gzip_magic[i] )
+		{
+			gzipped = false;
+			break;
+		}
+
+	if (gzipped)
+	{
+		// Zlib inflate
+		z_stream stream;
+		stream.zalloc = Z_NULL;
+		stream.zfree = Z_NULL;
+		stream.opaque = Z_NULL;
+
+		// Get compressed file length
+		SeekPos.QuadPart = 0;
+		_pStream->Seek(SeekPos,STREAM_SEEK_END,NULL);
+
+		// Get compressed and uncompressed size
+		uLong source_size;
+		uLongf dest_size;
+		//SeekPos.QuadPart = -4; // last 4 bytes define size of uncompressed file
+		//ULARGE_INTEGER Tell;
+		//_pStream->Seek(SeekPos,STREAM_SEEK_END,&Tell);
+		//source_size = (uLong)Tell.QuadPart + 4; // src
+		//_pStream->Read(&dest_size,4,&BytesRead); // dest
+		dest_size = 1024*70; // thumbnail is currently always inside the first 65KB...if it moves or enlargens this line will have to change or go!
+		source_size = (uLong)max(SeekPos.QuadPart,dest_size); // for safety, assume no compression
+		
+		// Input
+		Bytef* src = new Bytef[source_size];
+		stream.next_in = (Bytef*)src;
+		stream.avail_in = (uInt)source_size;
+		
+		// Output
+		Bytef* dest = new Bytef[dest_size];
+		stream.next_out = (Bytef*)dest;
+		stream.avail_out = dest_size; 
+
+		// IStream to src
+		SeekPos.QuadPart = 0;
+		_pStream->Seek(SeekPos,STREAM_SEEK_SET,NULL);
+		_pStream->Read(src,source_size,&BytesRead);
+		
+		// Do the inflation
+		int err;
+		err = inflateInit2(&stream,16); // 16 means "gzip"...nice!
+		err = inflate(&stream, Z_FINISH);		
+		err = inflateEnd(&stream);
+				
+		// Replace the IStream, which is read-only
+		_pStream->Release();
+		_pStream = SHCreateMemStream(dest,dest_size);
+		
+		delete[] src;
+		delete[] dest;
+	}
+
+	// Blender version, early out if sub 2.5
+	SeekPos.QuadPart = 9;
+	_pStream->Seek(SeekPos,STREAM_SEEK_SET,NULL);
+	char version[4];
+	version[3] = '\0';
+	_pStream->Read(&version,3,&BytesRead);
+	if ( BytesRead != 3)
+		return E_UNEXPECTED;
+	int iVersion = atoi(version);
+	if ( iVersion < 250 )
+		return S_FALSE;
+	
+	// 32 or 64 bit blend?
+	SeekPos.QuadPart = 7;
+	_pStream->Seek(SeekPos,STREAM_SEEK_SET,NULL);
+
+	char _PointerSize;
+	_pStream->Read(&_PointerSize,1,&BytesRead);
+
+	int PointerSize	= _PointerSize == '_' ? 4 : 8;
+	int HeaderSize	= 16 + PointerSize;
+
+	// Find and read thumbnail ("TEST") block
+	SeekPos.QuadPart = 12;
+	_pStream->Seek(SeekPos,STREAM_SEEK_SET,NULL);
+	int BlockOffset = 12;
+	while ( _pStream )
+	{
+		// Scan current block
+		char BlockName[5];
+		BlockName[4] = '\0';
+		int	BlockSize = 0;
+
+		if (_pStream->Read(BlockName,4,&BytesRead) == S_OK && _pStream->Read((void*)&BlockSize,4,&BytesRead) == S_OK)
+		{
+			if ( strcmp (BlockName,"TEST") != 0 )
+			{
+				SeekPos.QuadPart = BlockOffset += HeaderSize + BlockSize;
+				_pStream->Seek(SeekPos,STREAM_SEEK_SET,NULL);
+				continue;
+			}
+		}
+		else break; // eof
+
+		// Found the block
+		SeekPos.QuadPart = BlockOffset + HeaderSize;
+		_pStream->Seek(SeekPos,STREAM_SEEK_SET,NULL);
+
+		int width, height;
+		_pStream->Read((char*)&width,4,&BytesRead);
+		_pStream->Read((char*)&height,4,&BytesRead);
+		BlockSize -= 8;
+
+		// Isolate RGBA data
+		char* pRGBA = new char[BlockSize];
+		_pStream->Read(pRGBA,BlockSize,&BytesRead);
+
+		if (BytesRead != (ULONG)BlockSize)
+			return E_UNEXPECTED;
+
+		// Convert to BGRA for Windows
+		for (int i=0; i < BlockSize; i+=4 )
+		{
+			#define RED_BYTE pRGBA[i]
+			#define BLUE_BYTE pRGBA[i+2]
+
+			char red = RED_BYTE;
+			RED_BYTE = BLUE_BYTE;
+			BLUE_BYTE = red;
+		}
+		
+		// Flip vertically (Blender stores it upside-down)
+		unsigned int LineSize = width*4;
+		char* FlippedImage = new char[BlockSize];
+		for (int i=0; i<height; i++)
+		{
+			if ( 0 != memcpy_s(&FlippedImage[ (height - i - 1)*LineSize ],LineSize,&pRGBA[ i*LineSize ],LineSize))
+				return E_UNEXPECTED;
+		}
+		delete[] pRGBA;
+		pRGBA = FlippedImage;
+
+		// Create image
+		*phbmp = CreateBitmap(width,height,1,32,pRGBA);
+		if (!*phbmp)
+			return E_FAIL;
+		*pdwAlpha = WTSAT_ARGB; // it's actually BGRA, not sure why this works
+
+		// Scale down if required
+		if ( (unsigned)width > cx || (unsigned)height > cx )
+		{
+			float scale = 1.0f / (max(width,height) / (float)cx);
+			LONG NewWidth = (LONG)(width *scale);
+			LONG NewHeight = (LONG)(height *scale);
+
+#ifdef _DEBUG
+#if 1
+			MessageBox(0,L"Attach now",L"Debugging",MB_OK);
+#endif
+#endif
+			IWICImagingFactory *pImgFac;
+			hr = CoCreateInstance(CLSID_WICImagingFactory, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&pImgFac));
+			
+			IWICBitmap* WICBmp;
+			hr = pImgFac->CreateBitmapFromHBITMAP(*phbmp,0,WICBitmapUseAlpha,&WICBmp);
+			
+			BITMAPINFO bmi = {};
+			bmi.bmiHeader.biSize = sizeof(bmi.bmiHeader);
+			bmi.bmiHeader.biWidth = NewWidth;
+			bmi.bmiHeader.biHeight = -NewHeight;
+			bmi.bmiHeader.biPlanes = 1;
+			bmi.bmiHeader.biBitCount = 32;
+			bmi.bmiHeader.biCompression = BI_RGB;
+
+			BYTE *pBits;
+			HBITMAP ResizedHBmp = CreateDIBSection(NULL, &bmi, DIB_RGB_COLORS, (void**)&pBits, NULL, 0);
+			hr = ResizedHBmp ? S_OK : E_OUTOFMEMORY;
+			if (SUCCEEDED(hr))
+			{				
+				IWICBitmapScaler* pIScaler;
+				hr = pImgFac->CreateBitmapScaler(&pIScaler);
+				hr = pIScaler->Initialize(WICBmp,NewWidth,NewHeight,WICBitmapInterpolationModeFant);
+								
+				WICRect rect = {0, 0, NewWidth, NewHeight};
+				hr = pIScaler->CopyPixels(&rect, NewWidth * 4, NewWidth * NewHeight * 4, pBits);
+
+				if (SUCCEEDED(hr))
+				{
+					DeleteObject(*phbmp);
+					*phbmp = ResizedHBmp;
+				}
+				else
+					DeleteObject(ResizedHBmp);
+
+				pIScaler->Release();
+			}
+			WICBmp->Release();
+			pImgFac->Release();
+		}
+		else
+			hr = S_OK;
+		break;
+	}
+	return hr;
+}
diff --git a/release/windows/blendthumb/src/Dll.cpp b/release/windows/blendthumb/src/Dll.cpp
new file mode 100644
index 00000000000..09ccd34ff8e
--- /dev/null
+++ b/release/windows/blendthumb/src/Dll.cpp
@@ -0,0 +1,277 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#include <objbase.h>
+#include <shlwapi.h>
+#include <thumbcache.h> // For IThumbnailProvider.
+#include <shlobj.h>     // For SHChangeNotify
+#include <new>
+
+extern HRESULT CBlendThumb_CreateInstance(REFIID riid, void **ppv);
+
+#define SZ_CLSID_BLENDTHUMBHANDLER     L"{D45F043D-F17F-4e8a-8435-70971D9FA46D}"
+#define SZ_BLENDTHUMBHANDLER           L"Blender Thumbnail Handler"
+const CLSID CLSID_BlendThumbHandler	= { 0xd45f043d, 0xf17f, 0x4e8a, { 0x84, 0x35, 0x70, 0x97, 0x1d, 0x9f, 0xa4, 0x6d } };
+
+typedef HRESULT (*PFNCREATEINSTANCE)(REFIID riid, void **ppvObject);
+struct CLASS_OBJECT_INIT
+{
+    const CLSID *pClsid;
+    PFNCREATEINSTANCE pfnCreate;
+};
+
+// add classes supported by this module here
+const CLASS_OBJECT_INIT c_rgClassObjectInit[] =
+{
+    { &CLSID_BlendThumbHandler, CBlendThumb_CreateInstance }
+};
+
+
+long g_cRefModule = 0;
+
+// Handle the the DLL's module
+HINSTANCE g_hInst = NULL;
+
+// Standard DLL functions
+STDAPI_(BOOL) DllMain(HINSTANCE hInstance, DWORD dwReason, void *)
+{
+    if (dwReason == DLL_PROCESS_ATTACH)
+    {
+        g_hInst = hInstance;
+        DisableThreadLibraryCalls(hInstance);
+    }
+    return TRUE;
+}
+
+STDAPI DllCanUnloadNow()
+{
+    // Only allow the DLL to be unloaded after all outstanding references have been released
+    return (g_cRefModule == 0) ? S_OK : S_FALSE;
+}
+
+void DllAddRef()
+{
+    InterlockedIncrement(&g_cRefModule);
+}
+
+void DllRelease()
+{
+    InterlockedDecrement(&g_cRefModule);
+}
+
+class CClassFactory : public IClassFactory
+{
+public:
+    static HRESULT CreateInstance(REFCLSID clsid, const CLASS_OBJECT_INIT *pClassObjectInits, size_t cClassObjectInits, REFIID riid, void **ppv)
+    {
+        *ppv = NULL;
+        HRESULT hr = CLASS_E_CLASSNOTAVAILABLE;
+        for (size_t i = 0; i < cClassObjectInits; i++)
+        {
+            if (clsid == *pClassObjectInits[i].pClsid)
+            {
+                IClassFactory *pClassFactory = new (std::nothrow) CClassFactory(pClassObjectInits[i].pfnCreate);
+                hr = pClassFactory ? S_OK : E_OUTOFMEMORY;
+                if (SUCCEEDED(hr))
+                {
+                    hr = pClassFactory->QueryInterface(riid, ppv);
+                    pClassFactory->Release();
+                }
+                break; // match found
+            }
+        }
+        return hr;
+    }
+
+    CClassFactory(PFNCREATEINSTANCE pfnCreate) : _cRef(1), _pfnCreate(pfnCreate)
+    {
+        DllAddRef();
+    }
+
+    // IUnknown
+    IFACEMETHODIMP QueryInterface(REFIID riid, void ** ppv)
+    {
+        static const QITAB qit[] =
+        {
+            QITABENT(CClassFactory, IClassFactory),
+            { 0 }
+        };
+        return QISearch(this, qit, riid, ppv);
+    }
+
+    IFACEMETHODIMP_(ULONG) AddRef()
+    {
+        return InterlockedIncrement(&_cRef);
+    }
+
+    IFACEMETHODIMP_(ULONG) Release()
+    {
+        long cRef = InterlockedDecrement(&_cRef);
+        if (cRef == 0)
+        {
+            delete this;
+        }
+        return cRef;
+    }
+
+    // IClassFactory
+    IFACEMETHODIMP CreateInstance(IUnknown *punkOuter, REFIID riid, void **ppv)
+    {
+        return punkOuter ? CLASS_E_NOAGGREGATION : _pfnCreate(riid, ppv);
+    }
+
+    IFACEMETHODIMP LockServer(BOOL fLock)
+    {
+        if (fLock)
+        {
+            DllAddRef();
+        }
+        else
+        {
+            DllRelease();
+        }
+        return S_OK;
+    }
+
+private:
+    ~CClassFactory()
+    {
+        DllRelease();
+    }
+
+    long _cRef;
+    PFNCREATEINSTANCE _pfnCreate;
+};
+
+STDAPI DllGetClassObject(REFCLSID clsid, REFIID riid, void **ppv)
+{
+    return CClassFactory::CreateInstance(clsid, c_rgClassObjectInit, ARRAYSIZE(c_rgClassObjectInit), riid, ppv);
+}
+
+// A struct to hold the information required for a registry entry
+
+struct REGISTRY_ENTRY
+{
+    HKEY   hkeyRoot;
+    PCWSTR pszKeyName;
+    PCWSTR pszValueName;
+	DWORD  dwValueType;
+    PCWSTR pszData;
+};
+
+// Creates a registry key (if needed) and sets the default value of the key
+
+HRESULT CreateRegKeyAndSetValue(const REGISTRY_ENTRY *pRegistryEntry)
+{
+    HKEY hKey;
+    HRESULT hr = HRESULT_FROM_WIN32(RegCreateKeyExW(pRegistryEntry->hkeyRoot, pRegistryEntry->pszKeyName,
+                                0, NULL, REG_OPTION_NON_VOLATILE, KEY_SET_VALUE, NULL, &hKey, NULL));
+    if (SUCCEEDED(hr))
+    {
+		// All this just to support REG_DWORD...
+		DWORD size;
+		DWORD data;
+		BYTE* lpData = (LPBYTE) pRegistryEntry->pszData;
+		switch (pRegistryEntry->dwValueType)
+		{
+		case REG_SZ:
+			size = ((DWORD) wcslen(pRegistryEntry->pszData) + 1) * sizeof(WCHAR);
+			break;
+		case REG_DWORD:
+			size = sizeof(DWORD);
+			data = (DWORD)pRegistryEntry->pszData;
+			lpData = (BYTE*)&data;
+			break;
+		default:
+			return E_INVALIDARG;
+		}
+
+        hr = HRESULT_FROM_WIN32(RegSetValueExW(hKey, pRegistryEntry->pszValueName, 0, pRegistryEntry->dwValueType,
+                            lpData, size ));
+        RegCloseKey(hKey);
+    }
+    return hr;
+}
+
+//
+// Registers this COM server
+//
+STDAPI DllRegisterServer()
+{
+    HRESULT hr;
+
+    WCHAR szModuleName[MAX_PATH];
+
+    if (!GetModuleFileNameW(g_hInst, szModuleName, ARRAYSIZE(szModuleName)))
+    {
+        hr = HRESULT_FROM_WIN32(GetLastError());
+    }
+    else
+    {
+        const REGISTRY_ENTRY rgRegistryEntries[] =
+        {
+            // RootKey			KeyName																			ValueName			ValueType		Data
+            {HKEY_CURRENT_USER,	L"Software\\Classes\\CLSID\\" SZ_CLSID_BLENDTHUMBHANDLER,						NULL,				REG_SZ,			SZ_BLENDTHUMBHANDLER},
+            {HKEY_CURRENT_USER,	L"Software\\Classes\\CLSID\\" SZ_CLSID_BLENDTHUMBHANDLER L"\\InProcServer32",	NULL,				REG_SZ,			szModuleName},
+            {HKEY_CURRENT_USER,	L"Software\\Classes\\CLSID\\" SZ_CLSID_BLENDTHUMBHANDLER L"\\InProcServer32",	L"ThreadingModel",	REG_SZ,			L"Apartment"},
+            {HKEY_CURRENT_USER,	L"Software\\Classes\\.blend\\",													L"Treatment",		REG_DWORD,		0}, // doesn't appear to do anything...
+            {HKEY_CURRENT_USER,	L"Software\\Classes\\.blend\\ShellEx\\{e357fccd-a995-4576-b01f-234630154e96}",	NULL,				REG_SZ,			SZ_CLSID_BLENDTHUMBHANDLER},
+        };
+
+        hr = S_OK;
+        for (int i = 0; i < ARRAYSIZE(rgRegistryEntries) && SUCCEEDED(hr); i++)
+        {
+            hr = CreateRegKeyAndSetValue(&rgRegistryEntries[i]);
+        }
+    }
+    if (SUCCEEDED(hr))
+    {
+        // This tells the shell to invalidate the thumbnail cache.  This is important because any .blend files
+        // viewed before registering this handler would otherwise show cached blank thumbnails.
+        SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, NULL, NULL);
+    }
+    return hr;
+}
+
+//
+// Unregisters this COM server
+//
+STDAPI DllUnregisterServer()
+{
+    HRESULT hr = S_OK;
+
+    const PCWSTR rgpszKeys[] =
+    {
+        L"Software\\Classes\\CLSID\\" SZ_CLSID_BLENDTHUMBHANDLER,
+        L"Software\\Classes\\.blend\\ShellEx\\{e357fccd-a995-4576-b01f-234630154e96}"
+    };
+
+    // Delete the registry entries
+    for (int i = 0; i < ARRAYSIZE(rgpszKeys) && SUCCEEDED(hr); i++)
+    {
+        hr = HRESULT_FROM_WIN32(RegDeleteTreeW(HKEY_CURRENT_USER, rgpszKeys[i]));
+        if (hr == HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND))
+        {
+            // If the registry entry has already been deleted, say S_OK.
+            hr = S_OK;
+        }
+    }
+    return hr;
+}
diff --git a/source/blender/CMakeLists.txt b/source/blender/CMakeLists.txt
index 6f2b78e0845..818d4cd3d89 100644
--- a/source/blender/CMakeLists.txt
+++ b/source/blender/CMakeLists.txt
@@ -138,10 +138,6 @@ if(WITH_CODEC_AVI)
 	add_subdirectory(avi)
 endif()
 
-if(WITH_CODEC_QUICKTIME)
-	add_subdirectory(quicktime)
-endif()
-
 if(WITH_PYTHON)
 	add_subdirectory(python)
 endif()
diff --git a/source/blender/alembic/intern/abc_customdata.cc b/source/blender/alembic/intern/abc_customdata.cc
index 1d2bc689027..d6e7a80d174 100644
--- a/source/blender/alembic/intern/abc_customdata.cc
+++ b/source/blender/alembic/intern/abc_customdata.cc
@@ -252,7 +252,31 @@ static void read_uvs(const CDStreamConfig &config, void *data,
 	}
 }
 
-static void read_custom_data_mcols(const ICompoundProperty &arbGeomParams,
+static size_t mcols_out_of_bounds_check(
+        const size_t color_index,
+        const size_t array_size,
+        const std::string & iobject_full_name,
+        const PropertyHeader &prop_header,
+        bool &r_bounds_warning_given)
+{
+	if (color_index < array_size) {
+		return color_index;
+	}
+
+	if (!r_bounds_warning_given) {
+		std::cerr << "Alembic: color index out of bounds "
+		             "reading face colors for object "
+		          << iobject_full_name
+		          << ", property "
+		          << prop_header.getName() << std::endl;
+		r_bounds_warning_given = true;
+	}
+
+	return 0;
+}
+
+static void read_custom_data_mcols(const std::string & iobject_full_name,
+                                   const ICompoundProperty &arbGeomParams,
                                    const PropertyHeader &prop_header,
                                    const CDStreamConfig &config,
                                    const Alembic::Abc::ISampleSelector &iss)
@@ -303,6 +327,8 @@ static void read_custom_data_mcols(const ICompoundProperty &arbGeomParams,
 
 	size_t face_index = 0;
 	size_t color_index;
+	bool bounds_warning_given = false;
+
 	for (int i = 0; i < config.totpoly; ++i) {
 		MPoly *poly = &mpolys[i];
 		MCol *cface = &cfaces[poly->loopstart + poly->totloop];
@@ -311,9 +337,14 @@ static void read_custom_data_mcols(const ICompoundProperty &arbGeomParams,
 		for (int j = 0; j < poly->totloop; ++j, ++face_index) {
 			--cface;
 			--mloop;
-			color_index = is_facevarying ? face_index : mloop->v;
 
 			if (use_c3f_ptr) {
+				color_index = mcols_out_of_bounds_check(
+				                  is_facevarying ? face_index : mloop->v,
+				                  c3f_ptr->size(),
+				                  iobject_full_name, prop_header,
+				                  bounds_warning_given);
+
 				const Imath::C3f &color = (*c3f_ptr)[color_index];
 				cface->a = FTOCHAR(color[0]);
 				cface->r = FTOCHAR(color[1]);
@@ -321,6 +352,12 @@ static void read_custom_data_mcols(const ICompoundProperty &arbGeomParams,
 				cface->b = 255;
 			}
 			else {
+				color_index = mcols_out_of_bounds_check(
+				                  is_facevarying ? face_index : mloop->v,
+				                  c4f_ptr->size(),
+				                  iobject_full_name, prop_header,
+				                  bounds_warning_given);
+
 				const Imath::C4f &color = (*c4f_ptr)[color_index];
 				cface->a = FTOCHAR(color[0]);
 				cface->r = FTOCHAR(color[1]);
@@ -356,7 +393,10 @@ static void read_custom_data_uvs(const ICompoundProperty &prop,
 	read_uvs(config, cd_data, sample.getVals(), sample.getIndices());
 }
 
-void read_custom_data(const ICompoundProperty &prop, const CDStreamConfig &config, const Alembic::Abc::ISampleSelector &iss)
+void read_custom_data(const std::string & iobject_full_name,
+                      const ICompoundProperty &prop,
+                      const CDStreamConfig &config,
+                      const Alembic::Abc::ISampleSelector &iss)
 {
 	if (!prop.valid()) {
 		return;
@@ -386,7 +426,7 @@ void read_custom_data(const ICompoundProperty &prop, const CDStreamConfig &confi
 				continue;
 			}
 
-			read_custom_data_mcols(prop, prop_header, config, iss);
+			read_custom_data_mcols(iobject_full_name, prop, prop_header, config, iss);
 			continue;
 		}
 	}
diff --git a/source/blender/alembic/intern/abc_customdata.h b/source/blender/alembic/intern/abc_customdata.h
index 9e671fde386..b3072a2c9f7 100644
--- a/source/blender/alembic/intern/abc_customdata.h
+++ b/source/blender/alembic/intern/abc_customdata.h
@@ -96,7 +96,8 @@ void write_custom_data(const OCompoundProperty &prop,
                        CustomData *data,
                        int data_type);
 
-void read_custom_data(const ICompoundProperty &prop,
+void read_custom_data(const std::string & iobject_full_name,
+                      const ICompoundProperty &prop,
                       const CDStreamConfig &config,
                       const Alembic::Abc::ISampleSelector &iss);
 
diff --git a/source/blender/alembic/intern/abc_mesh.cc b/source/blender/alembic/intern/abc_mesh.cc
index 9a4ca6f99a8..6545ced8e4a 100644
--- a/source/blender/alembic/intern/abc_mesh.cc
+++ b/source/blender/alembic/intern/abc_mesh.cc
@@ -681,17 +681,17 @@ static void assign_materials(Main *bmain, Object *ob, const std::map<std::string
 			std::string mat_name = it->first;
 			mat_iter = mat_map.find(mat_name.c_str());
 
-			Material *assigned_name;
+			Material *assigned_mat;
 
 			if (mat_iter == mat_map.end()) {
-				assigned_name = BKE_material_add(bmain, mat_name.c_str());
-				mat_map[mat_name] = assigned_name;
+				assigned_mat = BKE_material_add(bmain, mat_name.c_str());
+				mat_map[mat_name] = assigned_mat;
 			}
 			else {
-				assigned_name = mat_iter->second;
+				assigned_mat = mat_iter->second;
 			}
 
-			assign_material(ob, assigned_name, it->second, BKE_MAT_ASSIGN_OBDATA);
+			assign_material(ob, assigned_mat, it->second, BKE_MAT_ASSIGN_OBDATA);
 		}
 	}
 }
@@ -943,7 +943,8 @@ static void get_weight_and_index(CDStreamConfig &config,
 	config.ceil_index = i1;
 }
 
-static void read_mesh_sample(ImportSettings *settings,
+static void read_mesh_sample(const std::string & iobject_full_name,
+                             ImportSettings *settings,
                              const IPolyMeshSchema &schema,
                              const ISampleSelector &selector,
                              CDStreamConfig &config,
@@ -981,10 +982,9 @@ static void read_mesh_sample(ImportSettings *settings,
 	}
 
 	if ((settings->read_flag & (MOD_MESHSEQ_READ_UV | MOD_MESHSEQ_READ_COLOR)) != 0) {
-		read_custom_data(schema.getArbGeomParams(), config, selector);
+		read_custom_data(iobject_full_name,
+		                 schema.getArbGeomParams(), config, selector);
 	}
-
-	/* TODO: face sets */
 }
 
 CDStreamConfig get_config(DerivedMesh *dm)
@@ -1112,7 +1112,8 @@ DerivedMesh *AbcMeshReader::read_derivedmesh(DerivedMesh *dm,
 	config.time = sample_sel.getRequestedTime();
 
 	bool do_normals = false;
-	read_mesh_sample(&settings, m_schema, sample_sel, config, do_normals);
+	read_mesh_sample(m_iobject.getFullName(),
+	                 &settings, m_schema, sample_sel, config, do_normals);
 
 	if (new_dm) {
 		/* Check if we had ME_SMOOTH flag set to restore it. */
@@ -1123,6 +1124,16 @@ DerivedMesh *AbcMeshReader::read_derivedmesh(DerivedMesh *dm,
 		CDDM_calc_normals(new_dm);
 		CDDM_calc_edges(new_dm);
 
+		/* Here we assume that the number of materials doesn't change, i.e. that
+		 * the material slots that were created when the object was loaded from
+		 * Alembic are still valid now. */
+		size_t num_polys = new_dm->getNumPolys(new_dm);
+		if (num_polys > 0) {
+			MPoly *dmpolies = new_dm->getPolyArray(new_dm);
+			std::map<std::string, int> mat_map;
+			assign_facesets_to_mpoly(sample_sel, 0, dmpolies, num_polys, mat_map);
+		}
+
 		return new_dm;
 	}
 
@@ -1133,8 +1144,11 @@ DerivedMesh *AbcMeshReader::read_derivedmesh(DerivedMesh *dm,
 	return dm;
 }
 
-void AbcMeshReader::readFaceSetsSample(Main *bmain, Mesh *mesh, size_t poly_start,
-                                       const ISampleSelector &sample_sel)
+void AbcMeshReader::assign_facesets_to_mpoly(
+        const ISampleSelector &sample_sel,
+        size_t poly_start,
+        MPoly *mpoly, int totpoly,
+        std::map<std::string, int> & r_mat_map)
 {
 	std::vector<std::string> face_sets;
 	m_schema.getFaceSetNames(face_sets);
@@ -1143,21 +1157,21 @@ void AbcMeshReader::readFaceSetsSample(Main *bmain, Mesh *mesh, size_t poly_star
 		return;
 	}
 
-	std::map<std::string, int> mat_map;
 	int current_mat = 0;
 
 	for (int i = 0; i < face_sets.size(); ++i) {
 		const std::string &grp_name = face_sets[i];
 
-		if (mat_map.find(grp_name) == mat_map.end()) {
-			mat_map[grp_name] = 1 + current_mat++;
+		if (r_mat_map.find(grp_name) == r_mat_map.end()) {
+			r_mat_map[grp_name] = 1 + current_mat++;
 		}
 
-		const int assigned_mat = mat_map[grp_name];
+		const int assigned_mat = r_mat_map[grp_name];
 
 		const IFaceSet faceset = m_schema.getFaceSet(grp_name);
 
 		if (!faceset.valid()) {
+			std::cerr << " Face set " << grp_name << " invalid for " << m_object_name << "\n";
 			continue;
 		}
 
@@ -1169,16 +1183,25 @@ void AbcMeshReader::readFaceSetsSample(Main *bmain, Mesh *mesh, size_t poly_star
 		for (size_t l = 0; l < num_group_faces; l++) {
 			size_t pos = (*group_faces)[l] + poly_start;
 
-			if (pos >= mesh->totpoly) {
+			if (pos >= totpoly) {
 				std::cerr << "Faceset overflow on " << faceset.getName() << '\n';
 				break;
 			}
 
-			MPoly &poly = mesh->mpoly[pos];
+			MPoly &poly = mpoly[pos];
 			poly.mat_nr = assigned_mat - 1;
 		}
 	}
 
+}
+
+void AbcMeshReader::readFaceSetsSample(Main *bmain, Mesh *mesh, size_t poly_start,
+                                       const ISampleSelector &sample_sel)
+{
+	std::map<std::string, int> mat_map;
+	assign_facesets_to_mpoly(sample_sel,
+	                         poly_start, mesh->mpoly, mesh->totpoly,
+	                         mat_map);
 	utils::assign_materials(bmain, m_object, mat_map);
 }
 
@@ -1197,7 +1220,8 @@ ABC_INLINE MEdge *find_edge(MEdge *edges, int totedge, int v1, int v2)
 	return NULL;
 }
 
-static void read_subd_sample(ImportSettings *settings,
+static void read_subd_sample(const std::string & iobject_full_name,
+                             ImportSettings *settings,
                              const ISubDSchema &schema,
                              const ISampleSelector &selector,
                              CDStreamConfig &config)
@@ -1232,10 +1256,9 @@ static void read_subd_sample(ImportSettings *settings,
 	}
 
 	if ((settings->read_flag & (MOD_MESHSEQ_READ_UV | MOD_MESHSEQ_READ_COLOR)) != 0) {
-		read_custom_data(schema.getArbGeomParams(), config, selector);
+		read_custom_data(iobject_full_name,
+		                 schema.getArbGeomParams(), config, selector);
 	}
-
-	/* TODO: face sets */
 }
 
 /* ************************************************************************** */
@@ -1364,7 +1387,8 @@ DerivedMesh *AbcSubDReader::read_derivedmesh(DerivedMesh *dm,
 	/* Only read point data when streaming meshes, unless we need to create new ones. */
 	CDStreamConfig config = get_config(new_dm ? new_dm : dm);
 	config.time = sample_sel.getRequestedTime();
-	read_subd_sample(&settings, m_schema, sample_sel, config);
+	read_subd_sample(m_iobject.getFullName(),
+	                 &settings, m_schema, sample_sel, config);
 
 	if (new_dm) {
 		/* Check if we had ME_SMOOTH flag set to restore it. */
diff --git a/source/blender/alembic/intern/abc_mesh.h b/source/blender/alembic/intern/abc_mesh.h
index 6bf1dde3d1d..5c1eb01d8e0 100644
--- a/source/blender/alembic/intern/abc_mesh.h
+++ b/source/blender/alembic/intern/abc_mesh.h
@@ -112,6 +112,11 @@ public:
 private:
 	void readFaceSetsSample(Main *bmain, Mesh *mesh, size_t poly_start,
 	                        const Alembic::AbcGeom::ISampleSelector &sample_sel);
+
+	void assign_facesets_to_mpoly(const Alembic::Abc::ISampleSelector &sample_sel,
+	                              size_t poly_start,
+	                              MPoly *mpoly, int totpoly,
+	                              std::map<std::string, int> & r_mat_map);
 };
 
 /* ************************************************************************** */
diff --git a/source/blender/alembic/intern/abc_util.cc b/source/blender/alembic/intern/abc_util.cc
index 26eb7620fb1..24a508e8292 100644
--- a/source/blender/alembic/intern/abc_util.cc
+++ b/source/blender/alembic/intern/abc_util.cc
@@ -370,10 +370,10 @@ AbcObjectReader *create_reader(const Alembic::AbcGeom::IObject &object, ImportSe
 		reader = new AbcCurveReader(object, settings);
 	}
 	else {
-		std::cerr << "Alembic: unknown how to handle objects of schema "
+		std::cerr << "Alembic: unknown how to handle objects of schema '"
 		          << md.get("schemaObjTitle")
-		          << ", skipping object "
-		          << object.getFullName() << std::endl;
+		          << "', skipping object '"
+		          << object.getFullName() << "'" << std::endl;
 	}
 
 	return reader;
diff --git a/source/blender/alembic/intern/alembic_capi.cc b/source/blender/alembic/intern/alembic_capi.cc
index bee8e92e969..5503dcb1527 100644
--- a/source/blender/alembic/intern/alembic_capi.cc
+++ b/source/blender/alembic/intern/alembic_capi.cc
@@ -990,6 +990,10 @@ CacheReader *CacheReader_open_alembic_object(AbcArchiveHandle *handle, CacheRead
 
 	ImportSettings settings;
 	AbcObjectReader *abc_reader = create_reader(iobject, settings);
+	if (abc_reader == NULL) {
+		/* This object is not supported */
+		return NULL;
+	}
 	abc_reader->object(object);
 	abc_reader->incref();
 
diff --git a/source/blender/blenkernel/BKE_DerivedMesh.h b/source/blender/blenkernel/BKE_DerivedMesh.h
index 63ff1149a68..700bfe568f1 100644
--- a/source/blender/blenkernel/BKE_DerivedMesh.h
+++ b/source/blender/blenkernel/BKE_DerivedMesh.h
@@ -193,7 +193,9 @@ struct DerivedMesh {
 	 * \warning Typical access is done via #getLoopTriArray, #getNumLoopTri.
 	 */
 	struct {
-		struct MLoopTri *array;
+		/* WARNING! swapping between array (ready-to-be-used data) and array_wip (where data is actually computed)
+		 *          shall always be protected by same lock as one used for looptris computing. */
+		struct MLoopTri *array, *array_wip;
 		int num;
 		int num_alloc;
 	} looptris;
@@ -220,7 +222,7 @@ struct DerivedMesh {
 	/** Recalculates mesh tessellation */
 	void (*recalcTessellation)(DerivedMesh *dm);
 
-	/** Loop tessellation cache */
+	/** Loop tessellation cache (WARNING! Only call inside threading-protected code!) */
 	void (*recalcLoopTri)(DerivedMesh *dm);
 	/** accessor functions */
 	const struct MLoopTri *(*getLoopTriArray)(DerivedMesh * dm);
@@ -625,7 +627,6 @@ void DM_ensure_normals(DerivedMesh *dm);
 void DM_ensure_tessface(DerivedMesh *dm);
 
 void DM_ensure_looptri_data(DerivedMesh *dm);
-void DM_ensure_looptri(DerivedMesh *dm);
 void DM_verttri_from_looptri(MVertTri *verttri, const MLoop *mloop, const MLoopTri *looptri, int looptri_num);
 
 void DM_update_tessface_data(DerivedMesh *dm);
@@ -832,11 +833,5 @@ struct MEdge *DM_get_edge_array(struct DerivedMesh *dm, bool *r_allocated);
 struct MLoop *DM_get_loop_array(struct DerivedMesh *dm, bool *r_allocated);
 struct MPoly *DM_get_poly_array(struct DerivedMesh *dm, bool *r_allocated);
 struct MFace *DM_get_tessface_array(struct DerivedMesh *dm, bool *r_allocated);
-const MLoopTri *DM_get_looptri_array(
-        DerivedMesh *dm,
-        const MVert *mvert,
-        const MPoly *mpoly, int mpoly_len,
-        const MLoop *mloop, int mloop_len,
-        bool *r_allocated);
 
 #endif  /* __BKE_DERIVEDMESH_H__ */
diff --git a/source/blender/blenkernel/BKE_action.h b/source/blender/blenkernel/BKE_action.h
index 5db0c3c9130..28be2b04c71 100644
--- a/source/blender/blenkernel/BKE_action.h
+++ b/source/blender/blenkernel/BKE_action.h
@@ -57,8 +57,9 @@ extern "C" {
 /* Allocate a new bAction with the given name */
 struct bAction *add_empty_action(struct Main *bmain, const char name[]);
 
-/* Allocate a copy of the given Action and all its data */	
-struct bAction *BKE_action_copy(struct Main *bmain, const struct bAction *src);
+void BKE_action_copy_data(struct Main *bmain, struct bAction *act_dst, const struct bAction *act_src, const int flag);
+/* Allocate a copy of the given Action and all its data */
+struct bAction *BKE_action_copy(struct Main *bmain, const struct bAction *act_src);
 
 /* Deallocate all of the Action's data, but not the Action itself */
 void BKE_action_free(struct bAction *act);
@@ -150,6 +151,7 @@ void                 BKE_pose_free_data_ex(struct bPose *pose, bool do_id_user);
 void                 BKE_pose_free_data(struct bPose *pose);
 void                 BKE_pose_free(struct bPose *pose);
 void                 BKE_pose_free_ex(struct bPose *pose, bool do_id_user);
+void                 BKE_pose_copy_data_ex(struct bPose **dst, const struct bPose *src, const int flag, const bool copy_constraints);
 void                 BKE_pose_copy_data(struct bPose **dst, const struct bPose *src, const bool copy_constraints);
 void                 BKE_pose_channel_copy_data(struct bPoseChannel *pchan, const struct bPoseChannel *pchan_from);
 struct bPoseChannel *BKE_pose_channel_find_name(const struct bPose *pose, const char *name);
diff --git a/source/blender/blenkernel/BKE_animsys.h b/source/blender/blenkernel/BKE_animsys.h
index 420ae4bb12d..534a57765f6 100644
--- a/source/blender/blenkernel/BKE_animsys.h
+++ b/source/blender/blenkernel/BKE_animsys.h
@@ -67,10 +67,10 @@ bool BKE_animdata_set_action(struct ReportList *reports, struct ID *id, struct b
 void BKE_animdata_free(struct ID *id, const bool do_id_user);
 
 /* Copy AnimData */
-struct AnimData *BKE_animdata_copy(struct AnimData *adt, const bool do_action);
+struct AnimData *BKE_animdata_copy(struct Main *bmain, struct AnimData *adt, const bool do_action);
 
 /* Copy AnimData */
-bool BKE_animdata_copy_id(struct ID *id_to, struct ID *id_from, const bool do_action);
+bool BKE_animdata_copy_id(struct Main *bmain, struct ID *id_to, struct ID *id_from, const bool do_action);
 
 /* Copy AnimData Actions */
 void BKE_animdata_copy_id_action(struct ID *id, const bool set_newid);
@@ -102,7 +102,7 @@ struct KS_Path *BKE_keyingset_add_path(struct KeyingSet *ks, struct ID *id, cons
 struct KS_Path *BKE_keyingset_find_path(struct KeyingSet *ks, struct ID *id, const char group_name[], const char rna_path[], int array_index, int group_mode);
 
 /* Copy all KeyingSets in the given list */
-void BKE_keyingsets_copy(struct ListBase *newlist, struct ListBase *list);
+void BKE_keyingsets_copy(struct ListBase *newlist, const struct ListBase *list);
 
 /* Free the given Keying Set path */
 void BKE_keyingset_free_path(struct KeyingSet *ks, struct KS_Path *ksp);
diff --git a/source/blender/blenkernel/BKE_armature.h b/source/blender/blenkernel/BKE_armature.h
index 6bfc8c918d6..60fb79d75d5 100644
--- a/source/blender/blenkernel/BKE_armature.h
+++ b/source/blender/blenkernel/BKE_armature.h
@@ -77,6 +77,7 @@ int  BKE_armature_bonelist_count(struct ListBase *lb);
 void BKE_armature_bonelist_free(struct ListBase *lb);
 void BKE_armature_free(struct bArmature *arm);
 void BKE_armature_make_local(struct Main *bmain, struct bArmature *arm, const bool lib_local);
+void BKE_armature_copy_data(struct Main *bmain, struct bArmature *arm_dst, const struct bArmature *arm_src, const int flag);
 struct bArmature *BKE_armature_copy(struct Main *bmain, const struct bArmature *arm);
 
 /* Bounding box. */
@@ -171,6 +172,11 @@ void BKE_pose_eval_init(struct EvaluationContext *eval_ctx,
                         struct Object *ob,
                         struct bPose *pose);
 
+void BKE_pose_eval_init_ik(struct EvaluationContext *eval_ctx,
+                           struct Scene *scene,
+                           struct Object *ob,
+                           struct bPose *pose);
+
 void BKE_pose_eval_bone(struct EvaluationContext *eval_ctx,
                         struct Scene *scene,
                         struct Object *ob,
diff --git a/source/blender/blenkernel/BKE_blender_version.h b/source/blender/blenkernel/BKE_blender_version.h
index 207631d36bd..f95b1963a91 100644
--- a/source/blender/blenkernel/BKE_blender_version.h
+++ b/source/blender/blenkernel/BKE_blender_version.h
@@ -27,8 +27,8 @@
 /* these lines are grep'd, watch out for our not-so-awesome regex
  * and keep comment above the defines.
  * Use STRINGIFY() rather than defining with quotes */
-#define BLENDER_VERSION         278
-#define BLENDER_SUBVERSION      5
+#define BLENDER_VERSION         279
+#define BLENDER_SUBVERSION      1
 /* Several breakages with 270, e.g. constraint deg vs rad */
 #define BLENDER_MINVERSION      270
 #define BLENDER_MINSUBVERSION   6
diff --git a/source/blender/blenkernel/BKE_brush.h b/source/blender/blenkernel/BKE_brush.h
index 42e4e73f2d5..dedb75a080a 100644
--- a/source/blender/blenkernel/BKE_brush.h
+++ b/source/blender/blenkernel/BKE_brush.h
@@ -44,6 +44,7 @@ void BKE_brush_system_exit(void);
 void BKE_brush_init(struct Brush *brush);
 struct Brush *BKE_brush_add(struct Main *bmain, const char *name, short ob_mode);
 struct Brush *BKE_brush_first_search(struct Main *bmain, short ob_mode);
+void BKE_brush_copy_data(struct Main *bmain, struct Brush *brush_dst, const struct Brush *brush_src, const int flag);
 struct Brush *BKE_brush_copy(struct Main *bmain, const struct Brush *brush);
 void BKE_brush_make_local(struct Main *bmain, struct Brush *brush, const bool lib_local);
 void BKE_brush_unlink(struct Main *bmain, struct Brush *brush);
diff --git a/source/blender/blenkernel/BKE_cachefile.h b/source/blender/blenkernel/BKE_cachefile.h
index f1e643c4a19..e9712681090 100644
--- a/source/blender/blenkernel/BKE_cachefile.h
+++ b/source/blender/blenkernel/BKE_cachefile.h
@@ -47,6 +47,8 @@ void BKE_cachefile_init(struct CacheFile *cache_file);
 
 void BKE_cachefile_free(struct CacheFile *cache_file);
 
+void BKE_cachefile_copy_data(
+        struct Main *bmain, struct CacheFile *cache_file_dst, const struct CacheFile *cache_file_src, const int flag);
 struct CacheFile *BKE_cachefile_copy(struct Main *bmain, const struct CacheFile *cache_file);
 
 void BKE_cachefile_make_local(struct Main *bmain, struct CacheFile *cache_file, const bool lib_local);
diff --git a/source/blender/blenkernel/BKE_camera.h b/source/blender/blenkernel/BKE_camera.h
index b2f22aacb28..04dee70faa6 100644
--- a/source/blender/blenkernel/BKE_camera.h
+++ b/source/blender/blenkernel/BKE_camera.h
@@ -52,6 +52,7 @@ struct GPUFXSettings;
 
 void BKE_camera_init(struct Camera *cam);
 void *BKE_camera_add(struct Main *bmain, const char *name);
+void BKE_camera_copy_data(struct Main *bmain, struct Camera *cam_dst, const struct Camera *cam_src, const int flag);
 struct Camera *BKE_camera_copy(struct Main *bmain, const struct Camera *cam);
 void BKE_camera_make_local(struct Main *bmain, struct Camera *cam, const bool lib_local);
 void BKE_camera_free(struct Camera *ca);
diff --git a/source/blender/blenkernel/BKE_constraint.h b/source/blender/blenkernel/BKE_constraint.h
index 047d1787f76..4e0eb5c65ac 100644
--- a/source/blender/blenkernel/BKE_constraint.h
+++ b/source/blender/blenkernel/BKE_constraint.h
@@ -120,6 +120,7 @@ void BKE_constraint_unique_name(struct bConstraint *con, struct ListBase *list);
 void BKE_constraints_free(struct ListBase *list);
 void BKE_constraints_free_ex(struct ListBase *list, bool do_id_user);
 void BKE_constraints_copy(struct ListBase *dst, const struct ListBase *src, bool do_extern);
+void BKE_constraints_copy_ex(struct ListBase *dst, const struct ListBase *src, const int flag, bool do_extern);
 void BKE_constraints_id_loop(struct ListBase *list, ConstraintIDFunc func, void *userdata);
 void BKE_constraint_free_data(struct bConstraint *con);
 void BKE_constraint_free_data_ex(struct bConstraint *con, bool do_id_user);
diff --git a/source/blender/blenkernel/BKE_curve.h b/source/blender/blenkernel/BKE_curve.h
index 635e999dd95..a900ba43443 100644
--- a/source/blender/blenkernel/BKE_curve.h
+++ b/source/blender/blenkernel/BKE_curve.h
@@ -78,6 +78,7 @@ void BKE_curve_free(struct Curve *cu);
 void BKE_curve_editfont_free(struct Curve *cu);
 void BKE_curve_init(struct Curve *cu);
 struct Curve *BKE_curve_add(struct Main *bmain, const char *name, int type);
+void BKE_curve_copy_data(struct Main *bmain, struct Curve *cu_dst, const struct Curve *cu_src, const int flag);
 struct Curve *BKE_curve_copy(struct Main *bmain, const struct Curve *cu);
 void BKE_curve_make_local(struct Main *bmain, struct Curve *cu, const bool lib_local);
 short BKE_curve_type_get(struct Curve *cu);
@@ -92,8 +93,8 @@ void BKE_curve_texspace_get(struct Curve *cu, float r_loc[3], float r_rot[3], fl
 bool BKE_curve_minmax(struct Curve *cu, bool use_radius, float min[3], float max[3]);
 bool BKE_curve_center_median(struct Curve *cu, float cent[3]);
 bool BKE_curve_center_bounds(struct Curve *cu, float cent[3]);
-void BKE_curve_transform_ex(struct Curve *cu, float mat[4][4], const bool do_keys, const float unit_scale);
-void BKE_curve_transform(struct Curve *cu, float mat[4][4], const bool do_keys);
+void BKE_curve_transform_ex(struct Curve *cu, float mat[4][4], const bool do_keys, const bool do_props, const float unit_scale);
+void BKE_curve_transform(struct Curve *cu, float mat[4][4], const bool do_keys, const bool do_props);
 void BKE_curve_translate(struct Curve *cu, float offset[3], const bool do_keys);
 void BKE_curve_material_index_remove(struct Curve *cu, int index);
 void BKE_curve_material_index_clear(struct Curve *cu);
@@ -217,7 +218,4 @@ struct EvaluationContext;
 void BKE_curve_eval_geometry(struct EvaluationContext *eval_ctx,
                              struct Curve *curve);
 
-void BKE_curve_eval_path(struct EvaluationContext *eval_ctx,
-                         struct Curve *curve);
-
 #endif  /* __BKE_CURVE_H__ */
diff --git a/source/blender/blenkernel/BKE_font.h b/source/blender/blenkernel/BKE_font.h
index e7ae0f606e7..60ad061bf77 100644
--- a/source/blender/blenkernel/BKE_font.h
+++ b/source/blender/blenkernel/BKE_font.h
@@ -78,6 +78,7 @@ void BKE_vfont_builtin_register(void *mem, int size);
 void BKE_vfont_free_data(struct VFont *vfont);
 void BKE_vfont_free(struct VFont *sc); 
 void BKE_vfont_init(struct VFont *vfont);
+void BKE_vfont_copy_data(struct Main *bmain, struct VFont *vfont_dst, const struct VFont *vfont_src, const int flag);
 struct VFont *BKE_vfont_builtin_get(void);
 struct VFont *BKE_vfont_load(struct Main *bmain, const char *filepath);
 struct VFont *BKE_vfont_load_exists_ex(struct Main *bmain, const char *filepath, bool *r_exists);
diff --git a/source/blender/blenkernel/BKE_freestyle.h b/source/blender/blenkernel/BKE_freestyle.h
index 50407f3bdfc..1045fde0039 100644
--- a/source/blender/blenkernel/BKE_freestyle.h
+++ b/source/blender/blenkernel/BKE_freestyle.h
@@ -50,7 +50,7 @@ typedef struct FreestyleModuleSettings FreestyleModuleSettings;
 /* FreestyleConfig */
 void BKE_freestyle_config_init(FreestyleConfig *config);
 void BKE_freestyle_config_free(FreestyleConfig *config);
-void BKE_freestyle_config_copy(FreestyleConfig *new_config, FreestyleConfig *config);
+void BKE_freestyle_config_copy(FreestyleConfig *new_config, FreestyleConfig *config, const int flag);
 
 /* FreestyleConfig.modules */
 FreestyleModuleConfig *BKE_freestyle_module_add(FreestyleConfig *config);
diff --git a/source/blender/blenkernel/BKE_global.h b/source/blender/blenkernel/BKE_global.h
index 830518906ab..790c8051ace 100644
--- a/source/blender/blenkernel/BKE_global.h
+++ b/source/blender/blenkernel/BKE_global.h
@@ -83,8 +83,6 @@ typedef struct Global {
 	/* debug flag, G_DEBUG, G_DEBUG_PYTHON & friends, set python or command line args */
 	int debug;
 
-	bool have_quicktime;
-
 	/* this variable is written to / read from FileGlobal->fileflags */
 	int fileflags;
 
diff --git a/source/blender/blenkernel/BKE_gpencil.h b/source/blender/blenkernel/BKE_gpencil.h
index bdd28baf137..b6de922c245 100644
--- a/source/blender/blenkernel/BKE_gpencil.h
+++ b/source/blender/blenkernel/BKE_gpencil.h
@@ -60,6 +60,7 @@ struct bGPdata   *BKE_gpencil_data_addnew(const char name[]);
 
 struct bGPDframe *BKE_gpencil_frame_duplicate(const struct bGPDframe *gpf_src);
 struct bGPDlayer *BKE_gpencil_layer_duplicate(const struct bGPDlayer *gpl_src);
+void BKE_gpencil_copy_data(struct Main *bmain, struct bGPdata *gpd_dst, const struct bGPdata *gpd_src, const int flag);
 struct bGPdata   *BKE_gpencil_data_duplicate(struct Main *bmain, const struct bGPdata *gpd, bool internal_copy);
 
 void BKE_gpencil_make_local(struct Main *bmain, struct bGPdata *gpd, const bool lib_local);
diff --git a/source/blender/blenkernel/BKE_group.h b/source/blender/blenkernel/BKE_group.h
index 684251c9561..404d1704c78 100644
--- a/source/blender/blenkernel/BKE_group.h
+++ b/source/blender/blenkernel/BKE_group.h
@@ -42,6 +42,7 @@ struct Scene;
 
 void          BKE_group_free(struct Group *group);
 struct Group *BKE_group_add(struct Main *bmain, const char *name);
+void          BKE_group_copy_data(struct Main *bmain, struct Group *group_dst, const struct Group *group_src, const int flag);
 struct Group *BKE_group_copy(struct Main *bmain, const struct Group *group);
 void          BKE_group_make_local(struct Main *bmain, struct Group *group, const bool lib_local);
 bool          BKE_group_object_add(struct Group *group, struct Object *ob, struct Scene *scene, struct Base *base);
diff --git a/source/blender/blenkernel/BKE_idprop.h b/source/blender/blenkernel/BKE_idprop.h
index ab8728faedb..5d8cd02756d 100644
--- a/source/blender/blenkernel/BKE_idprop.h
+++ b/source/blender/blenkernel/BKE_idprop.h
@@ -58,7 +58,7 @@ typedef union IDPropertyTemplate {
 /* ----------- Property Array Type ---------- */
 
 IDProperty *IDP_NewIDPArray(const char *name) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
-IDProperty *IDP_CopyIDPArray(const IDProperty *array) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
+IDProperty *IDP_CopyIDPArray(const IDProperty *array, const int flag) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
 
 /* shallow copies item */
 void IDP_SetIndexArray(struct IDProperty *prop, int index, struct IDProperty *item) ATTR_NONNULL();
@@ -103,6 +103,7 @@ IDProperty *IDP_GetPropertyTypeFromGroup(struct IDProperty *prop, const char *na
 /*-------- Main Functions --------*/
 struct IDProperty *IDP_GetProperties(struct ID *id, const bool create_if_needed) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
 struct IDProperty *IDP_CopyProperty(const struct IDProperty *prop) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
+struct IDProperty *IDP_CopyProperty_ex(const struct IDProperty *prop, const int flag) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
 
 bool IDP_EqualsProperties_ex(IDProperty *prop1, IDProperty *prop2, const bool is_strict) ATTR_WARN_UNUSED_RESULT;
 
diff --git a/source/blender/blenkernel/BKE_image.h b/source/blender/blenkernel/BKE_image.h
index e155b0719cc..3c716f39dd0 100644
--- a/source/blender/blenkernel/BKE_image.h
+++ b/source/blender/blenkernel/BKE_image.h
@@ -58,6 +58,7 @@ void   BKE_images_exit(void);
 void    BKE_image_free_packedfiles(struct Image *image);
 void    BKE_image_free_views(struct Image *image);
 void    BKE_image_free_buffers(struct Image *image);
+void    BKE_image_free_buffers_ex(struct Image *image, bool do_lock);
 /* call from library */
 void    BKE_image_free(struct Image *image);
 
@@ -250,6 +251,7 @@ void BKE_image_packfiles_from_mem(struct ReportList *reports, struct Image *ima,
 void BKE_image_print_memlist(void);
 
 /* empty image block, of similar type and filename */
+void BKE_image_copy_data(struct Main *bmain, struct Image *ima_dst, const struct Image *ima_src, const int flag);
 struct Image *BKE_image_copy(struct Main *bmain, const struct Image *ima);
 
 /* merge source into dest, and free source */
diff --git a/source/blender/blenkernel/BKE_key.h b/source/blender/blenkernel/BKE_key.h
index 94e8a24fbc5..5eef44ef896 100644
--- a/source/blender/blenkernel/BKE_key.h
+++ b/source/blender/blenkernel/BKE_key.h
@@ -51,6 +51,7 @@ extern "C" {
 void        BKE_key_free(struct Key *sc);
 void        BKE_key_free_nolib(struct Key *key);
 struct Key *BKE_key_add(struct ID *id);
+void BKE_key_copy_data(struct Main *bmain, struct Key *key_dst, const struct Key *key_src, const int flag);
 struct Key *BKE_key_copy(struct Main *bmain, const struct Key *key);
 struct Key *BKE_key_copy_nolib(struct Key *key);
 void        BKE_key_sort(struct Key *key);
diff --git a/source/blender/blenkernel/BKE_lamp.h b/source/blender/blenkernel/BKE_lamp.h
index 713ca80fb1a..b68da654520 100644
--- a/source/blender/blenkernel/BKE_lamp.h
+++ b/source/blender/blenkernel/BKE_lamp.h
@@ -44,6 +44,7 @@ struct Scene;
 
 void BKE_lamp_init(struct Lamp *la);
 struct Lamp *BKE_lamp_add(struct Main *bmain, const char *name) ATTR_WARN_UNUSED_RESULT;
+void BKE_lamp_copy_data(struct Main *bmain, struct Lamp *la_dst, const struct Lamp *la_src, const int flag);
 struct Lamp *BKE_lamp_copy(struct Main *bmain, const struct Lamp *la) ATTR_WARN_UNUSED_RESULT;
 struct Lamp *localize_lamp(struct Lamp *la) ATTR_WARN_UNUSED_RESULT;
 void BKE_lamp_make_local(struct Main *bmain, struct Lamp *la, const bool lib_local);
diff --git a/source/blender/blenkernel/BKE_lattice.h b/source/blender/blenkernel/BKE_lattice.h
index ec1cf79832d..f7d006785d2 100644
--- a/source/blender/blenkernel/BKE_lattice.h
+++ b/source/blender/blenkernel/BKE_lattice.h
@@ -47,6 +47,7 @@ struct MDeformVert;
 void BKE_lattice_resize(struct Lattice *lt, int u, int v, int w, struct Object *ltOb);
 void BKE_lattice_init(struct Lattice *lt);
 struct Lattice *BKE_lattice_add(struct Main *bmain, const char *name);
+void BKE_lattice_copy_data(struct Main *bmain, struct Lattice *lt_dst, const struct Lattice *lt_src, const int flag);
 struct Lattice *BKE_lattice_copy(struct Main *bmain, const struct Lattice *lt);
 void BKE_lattice_free(struct Lattice *lt);
 void BKE_lattice_make_local(struct Main *bmain, struct Lattice *lt, const bool lib_local);
diff --git a/source/blender/blenkernel/BKE_library.h b/source/blender/blenkernel/BKE_library.h
index 258dcc84449..b5104b35b3c 100644
--- a/source/blender/blenkernel/BKE_library.h
+++ b/source/blender/blenkernel/BKE_library.h
@@ -52,11 +52,38 @@ struct PropertyRNA;
 
 size_t BKE_libblock_get_alloc_info(short type, const char **name);
 void *BKE_libblock_alloc_notest(short type);
-void *BKE_libblock_alloc(struct Main *bmain, short type, const char *name) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
+void *BKE_libblock_alloc(struct Main *bmain, short type, const char *name, const int flag) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
 void  BKE_libblock_init_empty(struct ID *id);
+
+/**
+ * New ID creation/copying options.
+ */
+enum {
+	/* *** Generic options (should be handled by all ID types copying, ID creation, etc.). *** */
+	/* Create datablock outside of any main database - similar to 'localize' functions of materials etc. */
+	LIB_ID_CREATE_NO_MAIN            = 1 << 0,
+	/* Do not affect user refcount of datablocks used by new one (which also gets zero usercount then).
+	 * Implies LIB_ID_CREATE_NO_MAIN. */
+	LIB_ID_CREATE_NO_USER_REFCOUNT   = 1 << 1,
+	/* Assume given 'newid' already points to allocated memory for whole datablock (ID + data) - USE WITH CAUTION!
+	 * Implies LIB_ID_CREATE_NO_MAIN. */
+	LIB_ID_CREATE_NO_ALLOCATE        = 1 << 2,
+
+	LIB_ID_CREATE_NO_DEG_TAG         = 1 << 8,  /* Do not tag new ID for update in depsgraph. */
+
+	/* Specific options to some ID types or usages, may be ignored by unrelated ID copying functions. */
+	LIB_ID_COPY_NO_PROXY_CLEAR     = 1 << 16,  /* Object only, needed by make_local code. */
+	LIB_ID_COPY_NO_PREVIEW         = 1 << 17,  /* Do not copy preview data, when supported. */
+	LIB_ID_COPY_CACHES             = 1 << 18,  /* Copy runtime data caches. */
+	/* XXX TODO Do we want to keep that? would rather try to get rid of it... */
+	LIB_ID_COPY_ACTIONS            = 1 << 19,  /* EXCEPTION! Deep-copy actions used by animdata of copied ID. */
+};
+
+void BKE_libblock_copy_ex(struct Main *bmain, const struct ID *id, struct ID **r_newid, const int flag);
 void *BKE_libblock_copy(struct Main *bmain, const struct ID *id) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
+/* "Deprecated" old API. */
 void *BKE_libblock_copy_nolib(const struct ID *id, const bool do_action) ATTR_NONNULL();
-void  BKE_libblock_copy_data(struct ID *id, const struct ID *id_from, const bool do_action);
+
 void  BKE_libblock_rename(struct Main *bmain, struct ID *id, const char *name) ATTR_NONNULL();
 void  BLI_libblock_ensure_unique_name(struct Main *bmain, const char *name) ATTR_NONNULL();
 
@@ -64,13 +91,45 @@ struct ID *BKE_libblock_find_name_ex(struct Main *bmain, const short type, const
 struct ID *BKE_libblock_find_name(const short type, const char *name) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
 
 /* library_remap.c (keep here since they're general functions) */
-void  BKE_libblock_free(struct Main *bmain, void *idv) ATTR_NONNULL();
-void  BKE_libblock_free_datablock(struct ID *id) ATTR_NONNULL();
+/**
+ * New freeing logic options.
+ */
+enum {
+	/* *** Generic options (should be handled by all ID types freeing). *** */
+	/* Do not try to remove freed ID from given Main (passed Main may be NULL). */
+	LIB_ID_FREE_NO_MAIN            = 1 << 0,
+	/* Do not affect user refcount of datablocks used by freed one.
+	 * Implies LIB_ID_FREE_NO_MAIN. */
+	LIB_ID_FREE_NO_USER_REFCOUNT   = 1 << 1,
+	/* Assume freed ID datablock memory is managed elsewhere, do not free it
+	 * (still calls relevant ID type's freeing function though) - USE WITH CAUTION!
+	 * Implies LIB_ID_FREE_NO_MAIN. */
+	LIB_ID_FREE_NOT_ALLOCATED      = 1 << 2,
+
+	LIB_ID_FREE_NO_DEG_TAG         = 1 << 8,  /* Do not tag freed ID for update in depsgraph. */
+	LIB_ID_FREE_NO_UI_USER         = 1 << 9,  /* Do not attempt to remove freed ID from UI data/notifiers/... */
+};
+
+void BKE_id_free_ex(struct Main *bmain, void *idv, int flag, const bool use_flag_from_idtag);
+void BKE_id_free(struct Main *bmain, void *idv);
+/* Those three naming are bad actually, should be BKE_id_free... (since it goes beyond mere datablock). */
+/* "Deprecated" old API */
 void  BKE_libblock_free_ex(struct Main *bmain, void *idv, const bool do_id_user, const bool do_ui_user) ATTR_NONNULL();
+void  BKE_libblock_free(struct Main *bmain, void *idv) ATTR_NONNULL();
 void  BKE_libblock_free_us(struct Main *bmain, void *idv) ATTR_NONNULL();
-void  BKE_libblock_free_data(struct ID *id, const bool do_id_user) ATTR_NONNULL();
+
+void BKE_libblock_management_main_add(struct Main *bmain, void *idv);
+void BKE_libblock_management_main_remove(struct Main *bmain, void *idv);
+
+void BKE_libblock_management_usercounts_set(struct Main *bmain, void *idv);
+void BKE_libblock_management_usercounts_clear(struct Main *bmain, void *idv);
+
+/* TODO should be named "BKE_id_delete()". */
 void  BKE_libblock_delete(struct Main *bmain, void *idv) ATTR_NONNULL();
 
+void  BKE_libblock_free_datablock(struct ID *id, const int flag) ATTR_NONNULL();
+void  BKE_libblock_free_data(struct ID *id, const bool do_id_user) ATTR_NONNULL();
+
 void BKE_id_lib_local_paths(struct Main *bmain, struct Library *lib, struct ID *id);
 void id_lib_extern(struct ID *id);
 void BKE_library_filepath_set(struct Library *lib, const char *filepath);
@@ -87,6 +146,7 @@ void BKE_id_make_local_generic(struct Main *bmain, struct ID *id, const bool id_
 bool id_make_local(struct Main *bmain, struct ID *id, const bool test, const bool force_local);
 bool id_single_user(struct bContext *C, struct ID *id, struct PointerRNA *ptr, struct PropertyRNA *prop);
 bool id_copy(struct Main *bmain, const struct ID *id, struct ID **newid, bool test);
+bool BKE_id_copy_ex(struct Main *bmain, const struct ID *id, struct ID **r_newid, const int flag, const bool test);
 void id_sort_by_name(struct ListBase *lb, struct ID *id);
 void BKE_id_expand_local(struct Main *bmain, struct ID *id);
 void BKE_id_copy_ensure_local(struct Main *bmain, const struct ID *old_id, struct ID *new_id);
diff --git a/source/blender/blenkernel/BKE_linestyle.h b/source/blender/blenkernel/BKE_linestyle.h
index c7b323d0f6e..3ba4fbe0338 100644
--- a/source/blender/blenkernel/BKE_linestyle.h
+++ b/source/blender/blenkernel/BKE_linestyle.h
@@ -52,6 +52,9 @@ struct bContext;
 void BKE_linestyle_init(struct FreestyleLineStyle *linestyle);
 FreestyleLineStyle *BKE_linestyle_new(struct Main *bmain, const char *name);
 void                BKE_linestyle_free(FreestyleLineStyle *linestyle);
+void BKE_linestyle_copy_data(
+        struct Main *bmain, struct FreestyleLineStyle *linestyle_dst, const struct FreestyleLineStyle *linestyle_src,
+        const int flag);
 FreestyleLineStyle *BKE_linestyle_copy(struct Main *bmain, const FreestyleLineStyle *linestyle);
 
 void BKE_linestyle_make_local(struct Main *bmain, struct FreestyleLineStyle *linestyle, const bool lib_local);
@@ -63,10 +66,14 @@ LineStyleModifier *BKE_linestyle_alpha_modifier_add(FreestyleLineStyle *linestyl
 LineStyleModifier *BKE_linestyle_thickness_modifier_add(FreestyleLineStyle *linestyle, const char *name, int type);
 LineStyleModifier *BKE_linestyle_geometry_modifier_add(FreestyleLineStyle *linestyle, const char *name, int type);
 
-LineStyleModifier *BKE_linestyle_color_modifier_copy(FreestyleLineStyle *linestyle, const LineStyleModifier *m);
-LineStyleModifier *BKE_linestyle_alpha_modifier_copy(FreestyleLineStyle *linestyle, const LineStyleModifier *m);
-LineStyleModifier *BKE_linestyle_thickness_modifier_copy(FreestyleLineStyle *linestyle, const LineStyleModifier *m);
-LineStyleModifier *BKE_linestyle_geometry_modifier_copy(FreestyleLineStyle *linestyle, const LineStyleModifier *m);
+LineStyleModifier *BKE_linestyle_color_modifier_copy(
+        FreestyleLineStyle *linestyle, const LineStyleModifier *m, const int flag);
+LineStyleModifier *BKE_linestyle_alpha_modifier_copy(
+        FreestyleLineStyle *linestyle, const LineStyleModifier *m, const int flag);
+LineStyleModifier *BKE_linestyle_thickness_modifier_copy(
+        FreestyleLineStyle *linestyle, const LineStyleModifier *m, const int flag);
+LineStyleModifier *BKE_linestyle_geometry_modifier_copy(
+        FreestyleLineStyle *linestyle, const LineStyleModifier *m, const int flag);
 
 int BKE_linestyle_color_modifier_remove(FreestyleLineStyle *linestyle, LineStyleModifier *modifier);
 int BKE_linestyle_alpha_modifier_remove(FreestyleLineStyle *linestyle, LineStyleModifier *modifier);
diff --git a/source/blender/blenkernel/BKE_mask.h b/source/blender/blenkernel/BKE_mask.h
index 0735d2d97a1..5598f0dc473 100644
--- a/source/blender/blenkernel/BKE_mask.h
+++ b/source/blender/blenkernel/BKE_mask.h
@@ -32,6 +32,7 @@
  *  \ingroup bke
  */
 
+struct EvaluationContext;
 struct ImageUser;
 struct Image;
 struct ListBase;
@@ -122,6 +123,7 @@ void BKE_mask_point_select_set_handle(struct MaskSplinePoint *point, const eMask
 
 /* general */
 struct Mask *BKE_mask_new(struct Main *bmain, const char *name);
+void BKE_mask_copy_data(struct Main *bmain, struct Mask *mask_dst, const struct Mask *mask_src, const int flag);
 struct Mask *BKE_mask_copy_nolib(struct Mask *mask);
 struct Mask *BKE_mask_copy(struct Main *bmain, const struct Mask *mask);
 
@@ -232,6 +234,12 @@ float *BKE_mask_point_segment_feather_diff(struct MaskSpline *spline, struct Mas
                                            int width, int height,
                                            unsigned int *tot_feather_point);
 
+void BKE_mask_layer_evaluate_animation(struct MaskLayer *masklay, const float ctime);
+void BKE_mask_layer_evaluate_deform(struct MaskLayer *masklay, const float ctime);
+
+void BKE_mask_eval_animation(struct EvaluationContext *eval_ctx, struct Mask *mask);
+void BKE_mask_eval_update(struct EvaluationContext *eval_ctx, struct Mask *mask);
+
 /* mask_rasterize.c */
 struct MaskRasterHandle;
 typedef struct MaskRasterHandle MaskRasterHandle;
diff --git a/source/blender/blenkernel/BKE_material.h b/source/blender/blenkernel/BKE_material.h
index 7da962dd6d6..c6ebda2c399 100644
--- a/source/blender/blenkernel/BKE_material.h
+++ b/source/blender/blenkernel/BKE_material.h
@@ -54,6 +54,7 @@ void BKE_material_init(struct Material *ma);
 void BKE_material_remap_object(struct Object *ob, const unsigned int *remap);
 void BKE_material_remap_object_calc(struct  Object *ob_dst, struct Object *ob_src, short *remap_src_to_dst);
 struct Material *BKE_material_add(struct Main *bmain, const char *name);
+void BKE_material_copy_data(struct Main *bmain, struct Material *ma_dst, const struct Material *ma_src, const int flag);
 struct Material *BKE_material_copy(struct Main *bmain, const struct Material *ma);
 struct Material *localize_material(struct Material *ma);
 struct Material *give_node_material(struct Material *ma); /* returns node material or self */
diff --git a/source/blender/blenkernel/BKE_mball.h b/source/blender/blenkernel/BKE_mball.h
index c00a0743ebb..f02704ba903 100644
--- a/source/blender/blenkernel/BKE_mball.h
+++ b/source/blender/blenkernel/BKE_mball.h
@@ -41,6 +41,7 @@ struct MetaElem;
 void BKE_mball_free(struct MetaBall *mb);
 void BKE_mball_init(struct MetaBall *mb);
 struct MetaBall *BKE_mball_add(struct Main *bmain, const char *name);
+void BKE_mball_copy_data(struct Main *bmain, struct MetaBall *mb_dst, const struct MetaBall *mb_src, const int flag);
 struct MetaBall *BKE_mball_copy(struct Main *bmain, const struct MetaBall *mb);
 
 void BKE_mball_make_local(struct Main *bmain, struct MetaBall *mb, const bool lib_local);
@@ -59,7 +60,7 @@ bool BKE_mball_minmax_ex(struct MetaBall *mb, float min[3], float max[3],
                          float obmat[4][4], const short flag);
 bool BKE_mball_center_median(struct MetaBall *mb, float r_cent[3]);
 bool BKE_mball_center_bounds(struct MetaBall *mb, float r_cent[3]);
-void BKE_mball_transform(struct MetaBall *mb, float mat[4][4]);
+void BKE_mball_transform(struct MetaBall *mb, float mat[4][4], const bool do_props);
 void BKE_mball_translate(struct MetaBall *mb, const float offset[3]);
 
 struct MetaElem *BKE_mball_element_add(struct MetaBall *mb, const int type);
diff --git a/source/blender/blenkernel/BKE_mesh.h b/source/blender/blenkernel/BKE_mesh.h
index b55b8b2dd3c..f3b2b653e3d 100644
--- a/source/blender/blenkernel/BKE_mesh.h
+++ b/source/blender/blenkernel/BKE_mesh.h
@@ -87,6 +87,7 @@ int BKE_mesh_edge_other_vert(const struct MEdge *e, int v);
 void BKE_mesh_free(struct Mesh *me);
 void BKE_mesh_init(struct Mesh *me);
 struct Mesh *BKE_mesh_add(struct Main *bmain, const char *name);
+void BKE_mesh_copy_data(struct Main *bmain, struct Mesh *me_dst, const struct Mesh *me_src, const int flag);
 struct Mesh *BKE_mesh_copy(struct Main *bmain, const struct Mesh *me);
 void BKE_mesh_update_customdata_pointers(struct Mesh *me, const bool do_ensure_tess_cd);
 void BKE_mesh_ensure_skin_customdata(struct Mesh *me);
@@ -279,7 +280,8 @@ void BKE_mesh_poly_edgebitmap_insert(
 
 bool BKE_mesh_center_median(const struct Mesh *me, float r_cent[3]);
 bool BKE_mesh_center_bounds(const struct Mesh *me, float r_cent[3]);
-bool BKE_mesh_center_centroid(const struct Mesh *me, float r_cent[3]);
+bool BKE_mesh_center_of_surface(const struct Mesh *me, float r_cent[3]);
+bool BKE_mesh_center_of_volume(const struct Mesh *me, float r_cent[3]);
 
 void BKE_mesh_calc_volume(
         const struct MVert *mverts, const int mverts_num,
diff --git a/source/blender/blenkernel/BKE_modifier.h b/source/blender/blenkernel/BKE_modifier.h
index b241b5ca5b7..30c47a4b192 100644
--- a/source/blender/blenkernel/BKE_modifier.h
+++ b/source/blender/blenkernel/BKE_modifier.h
@@ -344,6 +344,7 @@ bool          modifier_unique_name(struct ListBase *modifiers, struct ModifierDa
 
 void          modifier_copyData_generic(const struct ModifierData *md, struct ModifierData *target);
 void          modifier_copyData(struct ModifierData *md, struct ModifierData *target);
+void          modifier_copyData_ex(struct ModifierData *md, struct ModifierData *target, const int flag);
 bool          modifier_dependsOnTime(struct ModifierData *md);
 bool          modifier_supportsMapping(struct ModifierData *md);
 bool          modifier_supportsCage(struct Scene *scene, struct ModifierData *md);
diff --git a/source/blender/blenkernel/BKE_movieclip.h b/source/blender/blenkernel/BKE_movieclip.h
index 69fdad5ef7b..3ddf75f204e 100644
--- a/source/blender/blenkernel/BKE_movieclip.h
+++ b/source/blender/blenkernel/BKE_movieclip.h
@@ -41,6 +41,7 @@ struct MovieDistortion;
 
 void BKE_movieclip_free(struct MovieClip *clip);
 
+void BKE_movieclip_copy_data(struct Main *bmain, struct MovieClip *clip_dst, const struct MovieClip *clip_src, const int flag);
 struct MovieClip *BKE_movieclip_copy(struct Main *bmain, const struct MovieClip *clip);
 void BKE_movieclip_make_local(struct Main *bmain, struct MovieClip *clip, const bool lib_local);
 
diff --git a/source/blender/blenkernel/BKE_node.h b/source/blender/blenkernel/BKE_node.h
index d5279c5b0ce..81de70ca8a4 100644
--- a/source/blender/blenkernel/BKE_node.h
+++ b/source/blender/blenkernel/BKE_node.h
@@ -335,6 +335,7 @@ struct bNodeTree *ntreeAddTree(struct Main *bmain, const char *name, const char
 
 /* copy/free funcs, need to manage ID users */
 void              ntreeFreeTree(struct bNodeTree *ntree);
+void BKE_node_tree_copy_data(struct Main *bmain, struct bNodeTree *ntree_dst, const struct bNodeTree *ntree_src, const int flag);
 struct bNodeTree *ntreeCopyTree_ex(const struct bNodeTree *ntree, struct Main *bmain, const bool do_id_user);
 struct bNodeTree *ntreeCopyTree(struct Main *bmain, const struct bNodeTree *ntree);
 /* node->id user count */
@@ -452,6 +453,7 @@ void            nodeUnlinkNode(struct bNodeTree *ntree, struct bNode *node);
 void            nodeUniqueName(struct bNodeTree *ntree, struct bNode *node);
 
 void            nodeFreeNode(struct bNodeTree *ntree, struct bNode *node);
+struct bNode    *BKE_node_copy_ex(struct bNodeTree *ntree, struct bNode *node_src, const int flag);
 struct bNode	*nodeCopyNode(struct bNodeTree *ntree, struct bNode *node);
 
 struct bNodeLink *nodeAddLink(struct bNodeTree *ntree, struct bNode *fromnode, struct bNodeSocket *fromsock, struct bNode *tonode, struct bNodeSocket *tosock);
diff --git a/source/blender/blenkernel/BKE_object.h b/source/blender/blenkernel/BKE_object.h
index 0a5035f9a9b..d1a4033957b 100644
--- a/source/blender/blenkernel/BKE_object.h
+++ b/source/blender/blenkernel/BKE_object.h
@@ -53,10 +53,10 @@ void BKE_object_workob_clear(struct Object *workob);
 void BKE_object_workob_calc_parent(struct Scene *scene, struct Object *ob, struct Object *workob);
 
 void BKE_object_transform_copy(struct Object *ob_tar, const struct Object *ob_src);
-struct SoftBody *copy_softbody(const struct SoftBody *sb, bool copy_caches);
-struct BulletSoftBody *copy_bulletsoftbody(const struct BulletSoftBody *sb);
-struct ParticleSystem *BKE_object_copy_particlesystem(struct ParticleSystem *psys);
-void BKE_object_copy_particlesystems(struct Object *ob_dst, const struct Object *ob_src);
+struct SoftBody *copy_softbody(const struct SoftBody *sb, const int flag);
+struct BulletSoftBody *copy_bulletsoftbody(const struct BulletSoftBody *sb, const int flag);
+struct ParticleSystem *BKE_object_copy_particlesystem(struct ParticleSystem *psys, const int flag);
+void BKE_object_copy_particlesystems(struct Object *ob_dst, const struct Object *ob_src, const int flag);
 void BKE_object_copy_softbody(struct Object *ob_dst, const struct Object *ob_src);
 void BKE_object_free_particlesystems(struct Object *ob);
 void BKE_object_free_softbody(struct Object *ob);
@@ -105,7 +105,7 @@ bool BKE_object_lod_is_usable(struct Object *ob, struct Scene *scene);
 struct Object *BKE_object_lod_meshob_get(struct Object *ob, struct Scene *scene);
 struct Object *BKE_object_lod_matob_get(struct Object *ob, struct Scene *scene);
 
-struct Object *BKE_object_copy_ex(struct Main *bmain, const struct Object *ob, bool copy_caches);
+void BKE_object_copy_data(struct Main *bmain, struct Object *ob_dst, const struct Object *ob_src, const int flag);
 struct Object *BKE_object_copy(struct Main *bmain, const struct Object *ob);
 void BKE_object_make_local(struct Main *bmain, struct Object *ob, const bool lib_local);
 void BKE_object_make_local_ex(struct Main *bmain, struct Object *ob, const bool lib_local, const bool clear_proxy);
diff --git a/source/blender/blenkernel/BKE_paint.h b/source/blender/blenkernel/BKE_paint.h
index 821dc211591..6cae8d28947 100644
--- a/source/blender/blenkernel/BKE_paint.h
+++ b/source/blender/blenkernel/BKE_paint.h
@@ -99,6 +99,8 @@ void BKE_paint_set_overlay_override(enum OverlayFlags flag);
 /* palettes */
 void                 BKE_palette_free(struct Palette *palette);
 struct Palette      *BKE_palette_add(struct Main *bmain, const char *name);
+void BKE_palette_copy_data(
+        struct Main *bmain, struct Palette *palette_dst, const struct Palette *palette_src, const int flag);
 struct Palette      *BKE_palette_copy(struct Main *bmain, const struct Palette *palette);
 void                 BKE_palette_make_local(struct Main *bmain, struct Palette *palette, const bool lib_local);
 struct PaletteColor *BKE_palette_color_add(struct Palette *palette);
@@ -109,12 +111,14 @@ void                 BKE_palette_clear(struct Palette *palette);
 /* paint curves */
 struct PaintCurve *BKE_paint_curve_add(struct Main *bmain, const char *name);
 void BKE_paint_curve_free(struct PaintCurve *pc);
+void BKE_paint_curve_copy_data(
+        struct Main *bmain, struct PaintCurve *pc_dst, const struct PaintCurve *pc_src, const int flag);
 struct PaintCurve *BKE_paint_curve_copy(struct Main *bmain, const struct PaintCurve *pc);
 void               BKE_paint_curve_make_local(struct Main *bmain, struct PaintCurve *pc, const bool lib_local);
 
 void BKE_paint_init(struct Scene *sce, PaintMode mode, const char col[3]);
 void BKE_paint_free(struct Paint *p);
-void BKE_paint_copy(struct Paint *src, struct Paint *tar);
+void BKE_paint_copy(struct Paint *src, struct Paint *tar, const int flag);
 
 void BKE_paint_cavity_curve_preset(struct Paint *p, int preset);
 
@@ -156,6 +160,14 @@ void paint_update_brush_rake_rotation(struct UnifiedPaintSettings *ups, struct B
 
 void BKE_paint_stroke_get_average(struct Scene *scene, struct Object *ob, float stroke[3]);
 
+/* Used for both vertex color and weight paint */
+struct SculptVertexPaintGeomMap {
+	int *vert_map_mem;
+	struct MeshElemMap *vert_to_loop;
+	int *poly_map_mem;
+	struct MeshElemMap *vert_to_poly;
+};
+
 /* Session data (mode-specific) */
 
 typedef struct SculptSession {
@@ -201,10 +213,39 @@ typedef struct SculptSession {
 
 	struct SculptStroke *stroke;
 	struct StrokeCache *cache;
+
+	union {
+		struct {
+			struct SculptVertexPaintGeomMap gmap;
+
+			/* For non-airbrush painting to re-apply from the original (MLoop aligned). */
+			unsigned int *previous_color;
+			float        *previous_accum;
+		} vpaint;
+
+		struct {
+			struct SculptVertexPaintGeomMap gmap;
+
+			/* Vertex aligned arrays of weights. */
+			float *previous_accum;
+			float *previous_weight;
+			/* Keep track of how much each vertex has been painted (non-airbrush only). */
+			float *alpha_weight;
+		} wpaint;
+
+		//struct {
+		//ToDo: identify sculpt-only fields
+		//} sculpt;
+	} mode;
+	int mode_type;
+
+	/* This flag prevents PBVH from being freed when creating the vp_handle for texture paint. */
+	bool building_vp_handle;
 } SculptSession;
 
 void BKE_sculptsession_free(struct Object *ob);
 void BKE_sculptsession_free_deformMats(struct SculptSession *ss);
+void BKE_sculptsession_free_vwpaint_data(struct SculptSession *ss);
 void BKE_sculptsession_bm_to_me(struct Object *ob, bool reorder);
 void BKE_sculptsession_bm_to_me_for_render(struct Object *object);
 void BKE_sculpt_update_mesh_elements(struct Scene *scene, struct Sculpt *sd, struct Object *ob,
diff --git a/source/blender/blenkernel/BKE_particle.h b/source/blender/blenkernel/BKE_particle.h
index f9948ba500a..ddb4f9c37bd 100644
--- a/source/blender/blenkernel/BKE_particle.h
+++ b/source/blender/blenkernel/BKE_particle.h
@@ -324,6 +324,9 @@ struct ParticleSystemModifierData *psys_get_modifier(struct Object *ob, struct P
 struct ModifierData *object_add_particle_system(struct Scene *scene, struct Object *ob, const char *name);
 void object_remove_particle_system(struct Scene *scene, struct Object *ob);
 struct ParticleSettings *psys_new_settings(const char *name, struct Main *main);
+void BKE_particlesettings_copy_data(
+        struct Main *bmain, struct ParticleSettings *part_dst, const struct ParticleSettings *part_src,
+        const int flag);
 struct ParticleSettings *BKE_particlesettings_copy(struct Main *bmain, const struct ParticleSettings *part);
 void BKE_particlesettings_make_local(struct Main *bmain, struct ParticleSettings *part, const bool lib_local);
 
@@ -473,9 +476,8 @@ typedef struct ParticleRenderData {
 
 struct EvaluationContext;
 
-void BKE_particle_system_eval(struct EvaluationContext *eval_ctx,
-                              struct Scene *scene,
-                              struct Object *ob,
-                              struct ParticleSystem *psys);
+void BKE_particle_system_eval_init(struct EvaluationContext *eval_ctx,
+                                   struct Scene *scene,
+                                   struct Object *ob);
 
 #endif
diff --git a/source/blender/blenkernel/BKE_pbvh.h b/source/blender/blenkernel/BKE_pbvh.h
index 927303f8b3c..cc84be6e2c1 100644
--- a/source/blender/blenkernel/BKE_pbvh.h
+++ b/source/blender/blenkernel/BKE_pbvh.h
@@ -32,6 +32,7 @@
 
 struct CCGElem;
 struct CCGKey;
+struct CCGDerivedMesh;
 struct CustomData;
 struct DMFlagMat;
 struct MPoly;
@@ -71,7 +72,7 @@ void BKE_pbvh_build_grids(PBVH *bvh, struct CCGElem **grid_elems,
                           struct CCGKey *key, void **gridfaces, struct DMFlagMat *flagmats,
                           unsigned int **grid_hidden);
 void BKE_pbvh_build_bmesh(PBVH *bvh, struct BMesh *bm, bool smooth_shading, struct BMLog *log, const int cd_vert_node_offset, const int cd_face_node_offset);
-
+void BKE_pbvh_set_ccgdm(PBVH *bvh, struct CCGDerivedMesh *ccgdm);
 void BKE_pbvh_free(PBVH *bvh);
 void BKE_pbvh_free_layer_disp(PBVH *bvh);
 
@@ -118,6 +119,7 @@ void BKE_pbvh_raycast_project_ray_root(
 void BKE_pbvh_node_draw(PBVHNode *node, void *data);
 void BKE_pbvh_draw(PBVH *bvh, float (*planes)[4], float (*face_nors)[3],
                    int (*setMaterial)(int matnr, void *attribs), bool wireframe, bool fast);
+void BKE_pbvh_draw_BB(PBVH *bvh);
 
 /* PBVH Access */
 typedef enum {
@@ -141,6 +143,7 @@ int BKE_pbvh_count_grid_quads(BLI_bitmap **grid_hidden,
 
 /* multires level, only valid for type == PBVH_GRIDS */
 void BKE_pbvh_get_grid_key(const PBVH *pbvh, struct CCGKey *key);
+struct CCGDerivedMesh *BKE_pbvh_get_ccgdm(const PBVH *bvh);
 
 /* Only valid for type == PBVH_BMESH */
 struct BMesh *BKE_pbvh_get_bmesh(PBVH *pbvh);
diff --git a/source/blender/blenkernel/BKE_pointcache.h b/source/blender/blenkernel/BKE_pointcache.h
index 02f6c435ee2..f0819c8d79d 100644
--- a/source/blender/blenkernel/BKE_pointcache.h
+++ b/source/blender/blenkernel/BKE_pointcache.h
@@ -314,7 +314,7 @@ struct PointCache *BKE_ptcache_add(struct ListBase *ptcaches);
 void BKE_ptcache_free_mem(struct ListBase *mem_cache);
 void BKE_ptcache_free(struct PointCache *cache);
 void BKE_ptcache_free_list(struct ListBase *ptcaches);
-struct PointCache *BKE_ptcache_copy_list(struct ListBase *ptcaches_new, const struct ListBase *ptcaches_old, bool copy_data);
+struct PointCache *BKE_ptcache_copy_list(struct ListBase *ptcaches_new, const struct ListBase *ptcaches_old, const int flag);
 
 /********************** Baking *********************/
 
diff --git a/source/blender/blenkernel/BKE_rigidbody.h b/source/blender/blenkernel/BKE_rigidbody.h
index c72f067a111..3c7274ca3c5 100644
--- a/source/blender/blenkernel/BKE_rigidbody.h
+++ b/source/blender/blenkernel/BKE_rigidbody.h
@@ -49,8 +49,8 @@ void BKE_rigidbody_free_constraint(struct Object *ob);
 
 /* ...... */
 
-struct RigidBodyOb *BKE_rigidbody_copy_object(const struct Object *ob);
-struct RigidBodyCon *BKE_rigidbody_copy_constraint(const struct Object *ob);
+struct RigidBodyOb *BKE_rigidbody_copy_object(const struct Object *ob, const int flag);
+struct RigidBodyCon *BKE_rigidbody_copy_constraint(const struct Object *ob, const int flag);
 
 /* Callback format for performing operations on ID-pointers for rigidbody world. */
 typedef void (*RigidbodyWorldIDFunc)(struct RigidBodyWorld *rbw, struct ID **idpoin, void *userdata, int cb_flag);
@@ -66,7 +66,7 @@ struct RigidBodyOb *BKE_rigidbody_create_object(struct Scene *scene, struct Obje
 struct RigidBodyCon *BKE_rigidbody_create_constraint(struct Scene *scene, struct Object *ob, short type);
 
 /* copy */
-struct RigidBodyWorld *BKE_rigidbody_world_copy(struct RigidBodyWorld *rbw);
+struct RigidBodyWorld *BKE_rigidbody_world_copy(struct RigidBodyWorld *rbw, const int flag);
 void BKE_rigidbody_world_groups_relink(struct RigidBodyWorld *rbw);
 
 /* 'validate' (i.e. make new or replace old) Physics-Engine objects */
diff --git a/source/blender/blenkernel/BKE_sca.h b/source/blender/blenkernel/BKE_sca.h
index 10cddd7b454..35bcd91a9b1 100644
--- a/source/blender/blenkernel/BKE_sca.h
+++ b/source/blender/blenkernel/BKE_sca.h
@@ -52,16 +52,16 @@ void free_actuators(struct ListBase *lb);
 
 void free_sensor(struct bSensor *sens);
 void free_sensors(struct ListBase *lb);
-struct bSensor *copy_sensor(struct bSensor *sens);
-void copy_sensors(struct ListBase *lbn, const struct ListBase *lbo);
+struct bSensor *copy_sensor(struct bSensor *sens, const int flag);
+void copy_sensors(struct ListBase *lbn, const struct ListBase *lbo, const int flag);
 void init_sensor(struct bSensor *sens);
 struct bSensor *new_sensor(int type);
-struct bController *copy_controller(struct bController *cont);
-void copy_controllers(struct ListBase *lbn, const struct ListBase *lbo);
+struct bController *copy_controller(struct bController *cont, const int flag);
+void copy_controllers(struct ListBase *lbn, const struct ListBase *lbo, const int flag);
 void init_controller(struct bController *cont);
 struct bController *new_controller(int type);
-struct bActuator *copy_actuator(struct bActuator *act);
-void copy_actuators(struct ListBase *lbn, const struct ListBase *lbo);
+struct bActuator *copy_actuator(struct bActuator *act, const int flag);
+void copy_actuators(struct ListBase *lbn, const struct ListBase *lbo, const int flag);
 void init_actuator(struct bActuator *act);
 struct bActuator *new_actuator(int type);
 void clear_sca_new_poins_ob(struct Object *ob);
@@ -70,7 +70,7 @@ void set_sca_new_poins_ob(struct Object *ob);
 void set_sca_new_poins(void);
 
 void BKE_sca_logic_links_remap(struct Main *bmain, struct Object *ob_old, struct Object *ob_new);
-void BKE_sca_logic_copy(struct Object *ob_new, const struct Object *ob);
+void BKE_sca_logic_copy(struct Object *ob_new, const struct Object *ob, const int flag);
 
 void sca_move_sensor(struct bSensor *sens_to_move, struct Object *ob, int move_up);
 void sca_move_controller(struct bController *cont_to_move, struct Object *ob, int move_up);
diff --git a/source/blender/blenkernel/BKE_scene.h b/source/blender/blenkernel/BKE_scene.h
index d2152950bff..481aff3cfa6 100644
--- a/source/blender/blenkernel/BKE_scene.h
+++ b/source/blender/blenkernel/BKE_scene.h
@@ -42,7 +42,6 @@ struct Base;
 struct EvaluationContext;
 struct Main;
 struct Object;
-struct QuicktimeCodecData;
 struct RenderData;
 struct SceneRenderLayer;
 struct Scene;
@@ -64,7 +63,6 @@ struct Main;
 struct Base *_setlooper_base_step(struct Scene **sce_iter, struct Base *base);
 
 void free_avicodecdata(struct AviCodecData *acd);
-void free_qtcodecdata(struct QuicktimeCodecData *acd);
 
 void BKE_scene_free(struct Scene *sce);
 void BKE_scene_init(struct Scene *sce);
@@ -98,6 +96,7 @@ void BKE_scene_base_flag_from_objects(struct Scene *scene);
 void BKE_scene_set_background(struct Main *bmain, struct Scene *sce);
 struct Scene *BKE_scene_set_name(struct Main *bmain, const char *name);
 
+void BKE_scene_copy_data(struct Main *bmain, struct Scene *sce_dst, const struct Scene *sce_src, const int flag);
 struct Scene *BKE_scene_copy(struct Main *bmain, struct Scene *sce, int type);
 void BKE_scene_groups_relink(struct Scene *sce);
 
@@ -151,6 +150,8 @@ bool BKE_scene_check_rigidbody_active(const struct Scene *scene);
 int BKE_scene_num_threads(const struct Scene *scene);
 int BKE_render_num_threads(const struct RenderData *r);
 
+int BKE_render_preview_pixel_size(const struct RenderData *r);
+
 double BKE_scene_unit_scale(const struct UnitSettings *unit, const int unit_type, double value);
 
 /* multiview */
@@ -175,4 +176,3 @@ int         BKE_scene_multiview_num_videos_get(const struct RenderData *rd);
 #endif
 
 #endif
-
diff --git a/source/blender/blenkernel/BKE_sequencer.h b/source/blender/blenkernel/BKE_sequencer.h
index 811e9136fc9..657e99f05d1 100644
--- a/source/blender/blenkernel/BKE_sequencer.h
+++ b/source/blender/blenkernel/BKE_sequencer.h
@@ -335,7 +335,8 @@ bool BKE_sequence_base_shuffle(
 bool BKE_sequence_base_shuffle_time(ListBase *seqbasep, struct Scene *evil_scene);
 bool BKE_sequence_base_isolated_sel_check(struct ListBase *seqbase);
 void BKE_sequencer_free_imbuf(struct Scene *scene, struct ListBase *seqbasep, bool for_render);
-struct Sequence *BKE_sequence_dupli_recursive(struct Scene *scene, struct Scene *scene_to, struct Sequence *seq, int dupe_flag);
+struct Sequence *BKE_sequence_dupli_recursive(
+        const struct Scene *scene_src, struct Scene *scene_dst, struct Sequence *seq, int dupe_flag);
 int BKE_sequence_swap(struct Sequence *seq_a, struct Sequence *seq_b, const char **error_str);
 
 bool BKE_sequence_check_depend(struct Sequence *seq, struct Sequence *cur);
@@ -352,8 +353,8 @@ void BKE_sequencer_refresh_sound_length(struct Scene *scene);
 
 void BKE_sequence_base_unique_name_recursive(ListBase *seqbasep, struct Sequence *seq);
 void BKE_sequence_base_dupli_recursive(
-        struct Scene *scene, struct Scene *scene_to, ListBase *nseqbase, ListBase *seqbase,
-        int dupe_flag);
+        const struct Scene *scene_src, struct Scene *scene_dst, struct ListBase *nseqbase, const struct ListBase *seqbase,
+        int dupe_flag, const int flag);
 bool BKE_sequence_is_valid_check(struct Sequence *seq);
 
 void BKE_sequencer_clear_scene_in_allseqs(struct Main *bmain, struct Scene *sce);
diff --git a/source/blender/blenkernel/BKE_sound.h b/source/blender/blenkernel/BKE_sound.h
index a5c626e74d7..6f8274fabc8 100644
--- a/source/blender/blenkernel/BKE_sound.h
+++ b/source/blender/blenkernel/BKE_sound.h
@@ -80,6 +80,8 @@ void BKE_sound_load(struct Main *main, struct bSound *sound);
 
 void BKE_sound_free(struct bSound *sound);
 
+void BKE_sound_copy_data(struct Main *bmain, struct bSound *sound_dst, const struct bSound *sound_src, const int flag);
+
 void BKE_sound_make_local(struct Main *bmain, struct bSound *sound, const bool lib_local);
 
 #if defined(__AUD_C_API_H__) || defined(WITH_SYSTEM_AUDASPACE)
diff --git a/source/blender/blenkernel/BKE_speaker.h b/source/blender/blenkernel/BKE_speaker.h
index 907558f9203..57f4c37f129 100644
--- a/source/blender/blenkernel/BKE_speaker.h
+++ b/source/blender/blenkernel/BKE_speaker.h
@@ -33,6 +33,7 @@ struct Speaker;
 
 void BKE_speaker_init(struct Speaker *spk);
 void *BKE_speaker_add(struct Main *bmain, const char *name);
+void BKE_speaker_copy_data(struct Main *bmain, struct Speaker *spk_dst, const struct Speaker *spk_src, const int flag);
 struct Speaker *BKE_speaker_copy(struct Main *bmain, const struct Speaker *spk);
 void BKE_speaker_make_local(struct Main *bmain, struct Speaker *spk, const bool lib_local);
 void BKE_speaker_free(struct Speaker *spk);
diff --git a/source/blender/blenkernel/BKE_text.h b/source/blender/blenkernel/BKE_text.h
index c8fb483cdf2..14d3318e059 100644
--- a/source/blender/blenkernel/BKE_text.h
+++ b/source/blender/blenkernel/BKE_text.h
@@ -52,6 +52,7 @@ bool            BKE_text_reload(struct Text *text);
 struct Text    *BKE_text_load_ex(struct Main *bmain, const char *file, const char *relpath,
                                  const bool is_internal);
 struct Text    *BKE_text_load	(struct Main *bmain, const char *file, const char *relpath);
+void            BKE_text_copy_data(struct Main *bmain, struct Text *ta_dst, const struct Text *ta_src, const int flag);
 struct Text    *BKE_text_copy		(struct Main *bmain, const struct Text *ta);
 void            BKE_text_make_local (struct Main *bmain, struct Text *text, const bool lib_local);
 void			BKE_text_clear      (struct Text *text);
diff --git a/source/blender/blenkernel/BKE_texture.h b/source/blender/blenkernel/BKE_texture.h
index 190fdeafaec..8a9171673ea 100644
--- a/source/blender/blenkernel/BKE_texture.h
+++ b/source/blender/blenkernel/BKE_texture.h
@@ -70,6 +70,7 @@ void colorband_update_sort(struct ColorBand *coba);
 
 void         BKE_texture_free(struct Tex *tex);
 void         BKE_texture_default(struct Tex *tex);
+void         BKE_texture_copy_data(struct Main *bmain, struct Tex *tex_dst, const struct Tex *tex_src, const int flag);
 struct Tex  *BKE_texture_copy(struct Main *bmain, const struct Tex *tex);
 struct Tex  *BKE_texture_add(struct Main *bmain, const char *name);
 struct Tex  *BKE_texture_localize(struct Tex *tex);
@@ -114,13 +115,13 @@ void                 BKE_texture_colormapping_default(struct ColorMapping *color
 void           BKE_texture_envmap_free_data(struct EnvMap *env);
 void           BKE_texture_envmap_free(struct EnvMap *env);
 struct EnvMap *BKE_texture_envmap_add(void);
-struct EnvMap *BKE_texture_envmap_copy(const struct EnvMap *env);
+struct EnvMap *BKE_texture_envmap_copy(const struct EnvMap *env, const int flag);
 
 void                 BKE_texture_pointdensity_init_data(struct PointDensity *pd);
 void                 BKE_texture_pointdensity_free_data(struct PointDensity *pd);
 void                 BKE_texture_pointdensity_free(struct PointDensity *pd);
 struct PointDensity *BKE_texture_pointdensity_add(void);
-struct PointDensity *BKE_texture_pointdensity_copy(const struct PointDensity *pd);
+struct PointDensity *BKE_texture_pointdensity_copy(const struct PointDensity *pd, const int flag);
 
 void              BKE_texture_voxeldata_free_data(struct VoxelData *vd);
 void              BKE_texture_voxeldata_free(struct VoxelData *vd);
@@ -129,7 +130,7 @@ struct VoxelData *BKE_texture_voxeldata_copy(struct VoxelData *vd);
 
 void             BKE_texture_ocean_free(struct OceanTex *ot);
 struct OceanTex *BKE_texture_ocean_add(void);
-struct OceanTex *BKE_texture_ocean_copy(const struct OceanTex *ot);
+struct OceanTex *BKE_texture_ocean_copy(const struct OceanTex *ot, const int flag);
 
 bool    BKE_texture_dependsOnTime(const struct Tex *texture);
 bool    BKE_texture_is_image_user(const struct Tex *tex);
diff --git a/source/blender/blenkernel/BKE_tracking.h b/source/blender/blenkernel/BKE_tracking.h
index b48be382073..d05ed1800fb 100644
--- a/source/blender/blenkernel/BKE_tracking.h
+++ b/source/blender/blenkernel/BKE_tracking.h
@@ -52,7 +52,7 @@ struct rcti;
 /* **** Common functions **** */
 
 void BKE_tracking_free(struct MovieTracking *tracking);
-void BKE_tracking_copy(struct MovieTracking *tracking_dst, const struct MovieTracking *tracking_src);
+void BKE_tracking_copy(struct MovieTracking *tracking_dst, const struct MovieTracking *tracking_src, const int flag);
 
 void BKE_tracking_settings_init(struct MovieTracking *tracking);
 
diff --git a/source/blender/blenkernel/BKE_world.h b/source/blender/blenkernel/BKE_world.h
index 18ae61f7653..2a811496bb9 100644
--- a/source/blender/blenkernel/BKE_world.h
+++ b/source/blender/blenkernel/BKE_world.h
@@ -39,6 +39,7 @@ struct World;
 void BKE_world_free(struct World *sc);
 void BKE_world_init(struct World *wrld);
 struct World *add_world(struct Main *bmian, const char *name);
+void BKE_world_copy_data(struct Main *bmain, struct World *wrld_dst, const struct World *wrld_src, const int flag);
 struct World *BKE_world_copy(struct Main *bmain, const struct World *wrld);
 struct World *localize_world(struct World *wrld);
 void BKE_world_make_local(struct Main *bmain, struct World *wrld, const bool lib_local);
diff --git a/source/blender/blenkernel/CMakeLists.txt b/source/blender/blenkernel/CMakeLists.txt
index 157c4408d6a..51598ede862 100644
--- a/source/blender/blenkernel/CMakeLists.txt
+++ b/source/blender/blenkernel/CMakeLists.txt
@@ -385,16 +385,6 @@ if(WITH_CODEC_AVI)
 	add_definitions(-DWITH_AVI)
 endif()
 
-if(WITH_CODEC_QUICKTIME)
-	list(APPEND INC
-		../quicktime
-	)
-	list(APPEND INC_SYS
-		${QUICKTIME_INCLUDE_DIRS}
-	)
-	add_definitions(-DWITH_QUICKTIME)
-endif()
-
 if(WITH_CODEC_FFMPEG)
 	list(APPEND SRC
 		intern/writeffmpeg.c
diff --git a/source/blender/blenkernel/intern/DerivedMesh.c b/source/blender/blenkernel/intern/DerivedMesh.c
index 7eea8224ba1..9dae4c5eae7 100644
--- a/source/blender/blenkernel/intern/DerivedMesh.c
+++ b/source/blender/blenkernel/intern/DerivedMesh.c
@@ -93,6 +93,10 @@ static DerivedMesh *navmesh_dm_createNavMeshForVisualization(DerivedMesh *dm);
 #  define ASSERT_IS_VALID_DM(dm)
 #endif
 
+
+static ThreadRWMutex loops_cache_lock = PTHREAD_RWLOCK_INITIALIZER;
+
+
 static void add_shapekey_layers(DerivedMesh *dm, Mesh *me, Object *ob);
 static void shapekey_layers_to_keyblocks(DerivedMesh *dm, Mesh *me, int actshape_uid);
 
@@ -235,6 +239,30 @@ static int dm_getNumLoopTri(DerivedMesh *dm)
 	return numlooptris;
 }
 
+static const MLoopTri *dm_getLoopTriArray(DerivedMesh *dm)
+{
+	MLoopTri *looptri;
+
+	BLI_rw_mutex_lock(&loops_cache_lock, THREAD_LOCK_READ);
+	looptri = dm->looptris.array;
+	BLI_rw_mutex_unlock(&loops_cache_lock);
+
+	if (looptri != NULL) {
+		BLI_assert(dm->getNumLoopTri(dm) == dm->looptris.num);
+	}
+	else {
+		BLI_rw_mutex_lock(&loops_cache_lock, THREAD_LOCK_WRITE);
+		/* We need to ensure array is still NULL inside mutex-protected code, some other thread might have already
+		 * recomputed those looptris. */
+		if (dm->looptris.array == NULL) {
+			dm->recalcLoopTri(dm);
+		}
+		looptri = dm->looptris.array;
+		BLI_rw_mutex_unlock(&loops_cache_lock);
+	}
+	return looptri;
+}
+
 static CustomData *dm_getVertCData(DerivedMesh *dm)
 {
 	return &dm->vertData;
@@ -278,6 +306,8 @@ void DM_init_funcs(DerivedMesh *dm)
 	dm->dupLoopArray = dm_dupLoopArray;
 	dm->dupPolyArray = dm_dupPolyArray;
 
+	dm->getLoopTriArray = dm_getLoopTriArray;
+
 	/* subtypes handle getting actual data */
 	dm->getNumLoopTri = dm_getNumLoopTri;
 
@@ -471,6 +501,8 @@ void DM_ensure_tessface(DerivedMesh *dm)
 
 /**
  * Ensure the array is large enough
+ *
+ * /note This function must always be thread-protected by caller. It should only be used by internal code.
  */
 void DM_ensure_looptri_data(DerivedMesh *dm)
 {
@@ -478,18 +510,22 @@ void DM_ensure_looptri_data(DerivedMesh *dm)
 	const unsigned int totloop = dm->numLoopData;
 	const int looptris_num = poly_to_tri_count(totpoly, totloop);
 
+	BLI_assert(dm->looptris.array_wip == NULL);
+
+	SWAP(MLoopTri *, dm->looptris.array, dm->looptris.array_wip);
+
 	if ((looptris_num > dm->looptris.num_alloc) ||
 	    (looptris_num < dm->looptris.num_alloc * 2) ||
 	    (totpoly == 0))
 	{
-		MEM_SAFE_FREE(dm->looptris.array);
+		MEM_SAFE_FREE(dm->looptris.array_wip);
 		dm->looptris.num_alloc = 0;
 		dm->looptris.num = 0;
 	}
 
 	if (totpoly) {
-		if (dm->looptris.array == NULL) {
-			dm->looptris.array = MEM_mallocN(sizeof(*dm->looptris.array) * looptris_num, __func__);
+		if (dm->looptris.array_wip == NULL) {
+			dm->looptris.array_wip = MEM_mallocN(sizeof(*dm->looptris.array_wip) * looptris_num, __func__);
 			dm->looptris.num_alloc = looptris_num;
 		}
 
@@ -497,19 +533,6 @@ void DM_ensure_looptri_data(DerivedMesh *dm)
 	}
 }
 
-/**
- * The purpose of this function is that we can call:
- * `dm->getLoopTriArray(dm)` and get the array returned.
- */
-void DM_ensure_looptri(DerivedMesh *dm)
-{
-	const int numPolys =  dm->getNumPolys(dm);
-
-	if ((dm->looptris.num == 0) && (numPolys != 0)) {
-		dm->recalcLoopTri(dm);
-	}
-}
-
 void DM_verttri_from_looptri(MVertTri *verttri, const MLoop *mloop, const MLoopTri *looptri, int looptri_num)
 {
 	int i;
@@ -2201,7 +2224,6 @@ static void mesh_calc_modifiers(
 		if (dataMask & CD_MASK_MFACE) {
 			DM_ensure_tessface(finaldm);
 		}
-		DM_ensure_looptri(finaldm);
 
 		/* without this, drawing ngon tri's faces will show ugly tessellated face
 		 * normals and will also have to calculate normals on the fly, try avoid
@@ -2641,7 +2663,7 @@ static void mesh_build_data(
 	ob->lastDataMask = dataMask;
 	ob->lastNeedMapping = need_mapping;
 
-	if ((ob->mode & OB_MODE_SCULPT) && ob->sculpt) {
+	if ((ob->mode & OB_MODE_ALL_SCULPT) && ob->sculpt) {
 		/* create PBVH immediately (would be created on the fly too,
 		 * but this avoids waiting on first stroke) */
 
@@ -4386,35 +4408,3 @@ MFace *DM_get_tessface_array(DerivedMesh *dm, bool *r_allocated)
 
 	return mface;
 }
-
-const MLoopTri *DM_get_looptri_array(
-        DerivedMesh *dm,
-        const MVert *mvert,
-        const MPoly *mpoly, int mpoly_len,
-        const MLoop *mloop, int mloop_len,
-        bool *r_allocated)
-{
-	const MLoopTri *looptri = dm->getLoopTriArray(dm);
-	*r_allocated = false;
-
-	if (looptri == NULL) {
-		if (mpoly_len > 0) {
-			const int looptris_num = poly_to_tri_count(mpoly_len, mloop_len);
-			MLoopTri *looptri_data;
-
-			looptri_data = MEM_mallocN(sizeof(MLoopTri) * looptris_num, __func__);
-
-			BKE_mesh_recalc_looptri(
-			        mloop, mpoly,
-			        mvert,
-			        mloop_len, mpoly_len,
-			        looptri_data);
-
-			looptri = looptri_data;
-
-			*r_allocated = true;
-		}
-	}
-
-	return looptri;
-}
diff --git a/source/blender/blenkernel/intern/action.c b/source/blender/blenkernel/intern/action.c
index 885ea36d404..5bd6085c8f5 100644
--- a/source/blender/blenkernel/intern/action.c
+++ b/source/blender/blenkernel/intern/action.c
@@ -88,7 +88,7 @@ bAction *add_empty_action(Main *bmain, const char name[])
 {
 	bAction *act;
 	
-	act = BKE_libblock_alloc(bmain, ID_AC, name);
+	act = BKE_libblock_alloc(bmain, ID_AC, name, 0);
 	
 	return act;
 }	
@@ -120,46 +120,56 @@ void BKE_action_free(bAction *act)
 
 /* .................................. */
 
-bAction *BKE_action_copy(Main *bmain, const bAction *src)
+/**
+ * Only copy internal data of Action ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_action_copy_data(Main *UNUSED(bmain), bAction *act_dst, const bAction *act_src, const int UNUSED(flag))
 {
-	bAction *dst = NULL;
-	bActionGroup *dgrp, *sgrp;
-	FCurve *dfcu, *sfcu;
-	
-	if (src == NULL) 
-		return NULL;
-	dst = BKE_libblock_copy(bmain, &src->id);
-	
+	bActionGroup *grp_dst, *grp_src;
+	FCurve *fcu_dst, *fcu_src;
+
 	/* duplicate the lists of groups and markers */
-	BLI_duplicatelist(&dst->groups, &src->groups);
-	BLI_duplicatelist(&dst->markers, &src->markers);
-	
+	BLI_duplicatelist(&act_dst->groups, &act_src->groups);
+	BLI_duplicatelist(&act_dst->markers, &act_src->markers);
+
 	/* copy F-Curves, fixing up the links as we go */
-	BLI_listbase_clear(&dst->curves);
-	
-	for (sfcu = src->curves.first; sfcu; sfcu = sfcu->next) {
+	BLI_listbase_clear(&act_dst->curves);
+
+	for (fcu_src = act_src->curves.first; fcu_src; fcu_src = fcu_src->next) {
 		/* duplicate F-Curve */
-		dfcu = copy_fcurve(sfcu);
-		BLI_addtail(&dst->curves, dfcu);
-		
+		fcu_dst = copy_fcurve(fcu_src);  /* XXX TODO pass subdata flag? But surprisingly does not seem to be doing any ID refcounting... */
+		BLI_addtail(&act_dst->curves, fcu_dst);
+
 		/* fix group links (kindof bad list-in-list search, but this is the most reliable way) */
-		for (dgrp = dst->groups.first, sgrp = src->groups.first; dgrp && sgrp; dgrp = dgrp->next, sgrp = sgrp->next) {
-			if (sfcu->grp == sgrp) {
-				dfcu->grp = dgrp;
-				
-				if (dgrp->channels.first == sfcu)
-					dgrp->channels.first = dfcu;
-				if (dgrp->channels.last == sfcu)
-					dgrp->channels.last = dfcu;
-					
+		for (grp_dst = act_dst->groups.first, grp_src = act_src->groups.first;
+		     grp_dst && grp_src;
+		     grp_dst = grp_dst->next, grp_src = grp_src->next)
+		{
+			if (fcu_src->grp == grp_src) {
+				fcu_dst->grp = grp_dst;
+
+				if (grp_dst->channels.first == fcu_src) {
+					grp_dst->channels.first = fcu_dst;
+				}
+				if (grp_dst->channels.last == fcu_src) {
+					grp_dst->channels.last = fcu_dst;
+				}
 				break;
 			}
 		}
 	}
-	
-	BKE_id_copy_ensure_local(bmain, &src->id, &dst->id);
+}
 
-	return dst;
+bAction *BKE_action_copy(Main *bmain, const bAction *act_src)
+{
+	bAction *act_copy;
+	BKE_id_copy_ex(bmain, &act_src->id, (ID **)&act_copy, 0, false);
+	return act_copy;
 }
 
 /* *************** Action Groups *************** */
@@ -523,7 +533,7 @@ const char *BKE_pose_ikparam_get_name(bPose *pose)
  *
  * \param dst  Should be freed already, makes entire duplicate.
  */
-void BKE_pose_copy_data(bPose **dst, const bPose *src, const bool copy_constraints)
+void BKE_pose_copy_data_ex(bPose **dst, const bPose *src, const int flag, const bool copy_constraints)
 {
 	bPose *outPose;
 	bPoseChannel *pchan;
@@ -553,9 +563,8 @@ void BKE_pose_copy_data(bPose **dst, const bPose *src, const bool copy_constrain
 	outPose->avs = src->avs;
 	
 	for (pchan = outPose->chanbase.first; pchan; pchan = pchan->next) {
-
-		if (pchan->custom) {
-			id_us_plus(&pchan->custom->id);
+		if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
+			id_us_plus((ID *)pchan->custom);
 		}
 
 		/* warning, O(n2) here, if done without the hash, but these are rarely used features. */
@@ -570,13 +579,13 @@ void BKE_pose_copy_data(bPose **dst, const bPose *src, const bool copy_constrain
 		}
 
 		if (copy_constraints) {
-			BKE_constraints_copy(&listb, &pchan->constraints, true);  // BKE_constraints_copy NULLs listb
+			BKE_constraints_copy_ex(&listb, &pchan->constraints, flag, true);  // BKE_constraints_copy NULLs listb
 			pchan->constraints = listb;
 			pchan->mpath = NULL; /* motion paths should not get copied yet... */
 		}
 		
 		if (pchan->prop) {
-			pchan->prop = IDP_CopyProperty(pchan->prop);
+			pchan->prop = IDP_CopyProperty_ex(pchan->prop, flag);
 		}
 	}
 
@@ -588,6 +597,11 @@ void BKE_pose_copy_data(bPose **dst, const bPose *src, const bool copy_constrain
 	*dst = outPose;
 }
 
+void BKE_pose_copy_data(bPose **dst, const bPose *src, const bool copy_constraints)
+{
+	BKE_pose_copy_data_ex(dst, src, 0, copy_constraints);
+}
+
 void BKE_pose_itasc_init(bItasc *itasc)
 {
 	if (itasc) {
@@ -1115,9 +1129,13 @@ void calc_action_range(const bAction *act, float *start, float *end, short incl_
 			if (fcu->totvert) {
 				float nmin, nmax;
 				
-				/* get extents for this curve */
-				/* TODO: allow enabling/disabling this? */
-				calc_fcurve_range(fcu, &nmin, &nmax, false, true);
+				/* get extents for this curve
+				 * - no "selected only", since this is often used in the backend
+				 * - no "minimum length" (we will apply this later), otherwise
+				 *   single-keyframe curves will increase the overall length by
+				 *   a phantom frame (T50354)
+				 */
+				calc_fcurve_range(fcu, &nmin, &nmax, false, false);
 				
 				/* compare to the running tally */
 				min = min_ff(min, nmin);
@@ -1170,7 +1188,9 @@ void calc_action_range(const bAction *act, float *start, float *end, short incl_
 	}
 	
 	if (foundvert || foundmod) {
+		/* ensure that action is at least 1 frame long (for NLA strips to have a valid length) */
 		if (min == max) max += 1.0f;
+		
 		*start = min;
 		*end = max;
 	}
diff --git a/source/blender/blenkernel/intern/anim_sys.c b/source/blender/blenkernel/intern/anim_sys.c
index 539901a59d5..64b33326aa9 100644
--- a/source/blender/blenkernel/intern/anim_sys.c
+++ b/source/blender/blenkernel/intern/anim_sys.c
@@ -259,7 +259,7 @@ void BKE_animdata_free(ID *id, const bool do_id_user)
 /* Copying -------------------------------------------- */
 
 /* Make a copy of the given AnimData - to be used when copying datablocks */
-AnimData *BKE_animdata_copy(AnimData *adt, const bool do_action)
+AnimData *BKE_animdata_copy(Main *bmain, AnimData *adt, const bool do_action)
 {
 	AnimData *dadt;
 	
@@ -270,8 +270,9 @@ AnimData *BKE_animdata_copy(AnimData *adt, const bool do_action)
 	
 	/* make a copy of action - at worst, user has to delete copies... */
 	if (do_action) {
-		dadt->action = BKE_action_copy(G.main, adt->action);
-		dadt->tmpact = BKE_action_copy(G.main, adt->tmpact);
+		BLI_assert(bmain != NULL);
+		BKE_id_copy_ex(bmain, (ID *)dadt->action, (ID **)&dadt->action, 0, false);
+		BKE_id_copy_ex(bmain, (ID *)dadt->tmpact, (ID **)&dadt->tmpact, 0, false);
 	}
 	else {
 		id_us_plus((ID *)dadt->action);
@@ -291,7 +292,7 @@ AnimData *BKE_animdata_copy(AnimData *adt, const bool do_action)
 	return dadt;
 }
 
-bool BKE_animdata_copy_id(ID *id_to, ID *id_from, const bool do_action)
+bool BKE_animdata_copy_id(Main *bmain, ID *id_to, ID *id_from, const bool do_action)
 {
 	AnimData *adt;
 
@@ -303,7 +304,7 @@ bool BKE_animdata_copy_id(ID *id_to, ID *id_from, const bool do_action)
 	adt = BKE_animdata_from_id(id_from);
 	if (adt) {
 		IdAdtTemplate *iat = (IdAdtTemplate *)id_to;
-		iat->adt = BKE_animdata_copy(adt, do_action);
+		iat->adt = BKE_animdata_copy(bmain, adt, do_action);
 	}
 
 	return true;
@@ -623,6 +624,8 @@ char *BKE_animdata_driver_path_hack(bContext *C, PointerRNA *ptr, PropertyRNA *p
 					}
 					break;
 				}
+				default:
+					break;
 			}
 
 			/* fix RNA pointer, as we've now changed the ID root by changing the paths */
@@ -1347,7 +1350,7 @@ void BKE_keyingset_free_path(KeyingSet *ks, KS_Path *ksp)
 }
 
 /* Copy all KeyingSets in the given list */
-void BKE_keyingsets_copy(ListBase *newlist, ListBase *list)
+void BKE_keyingsets_copy(ListBase *newlist, const ListBase *list)
 {
 	KeyingSet *ksn;
 	KS_Path *kspn;
diff --git a/source/blender/blenkernel/intern/appdir.c b/source/blender/blenkernel/intern/appdir.c
index 43fd47981b1..6dd852c7875 100644
--- a/source/blender/blenkernel/intern/appdir.c
+++ b/source/blender/blenkernel/intern/appdir.c
@@ -106,7 +106,8 @@ const char *BKE_appdir_folder_default(void)
 static char *blender_version_decimal(const int ver)
 {
 	static char version_str[5];
-	sprintf(version_str, "%d.%02d", ver / 100, ver % 100);
+	BLI_assert(ver < 1000);
+	BLI_snprintf(version_str, sizeof(version_str), "%d.%02d", ver / 100, ver % 100);
 	return version_str;
 }
 
@@ -212,8 +213,10 @@ static bool get_path_local(
 	/* try EXECUTABLE_DIR/2.5x/folder_name - new default directory for local blender installed files */
 #ifdef __APPLE__
 	/* due new codesign situation in OSX > 10.9.5 we must move the blender_version dir with contents to Resources */
-	static char osx_resourses[FILE_MAX];
-	sprintf(osx_resourses, "%s../Resources", bprogdir);
+	char osx_resourses[FILE_MAX];
+	BLI_snprintf(osx_resourses, sizeof(osx_resourses), "%s../Resources", bprogdir);
+	/* Remove the '/../' added above. */
+	BLI_cleanup_path(NULL, osx_resourses);
 	return test_path(targetpath, targetpath_len, osx_resourses, blender_version_decimal(ver), relfolder);
 #else
 	return test_path(targetpath, targetpath_len, bprogdir, blender_version_decimal(ver), relfolder);
@@ -326,10 +329,12 @@ static bool get_path_system(
 			return true;
 		}
 	}
-
 	/* try EXECUTABLE_DIR/release/folder_name */
-	if (test_path(targetpath, targetpath_len, bprogdir, "release", relfolder))
+	if (test_path(targetpath, targetpath_len, bprogdir, "release", relfolder)) {
 		return true;
+	}
+	/* never use if not existing. */
+	targetpath[0] = '\0';
 
 	/* end developer overrides */
 
@@ -591,6 +596,9 @@ static void where_am_i(char *fullname, const size_t maxlen, const char *name)
 		else {
 			BLI_path_program_search(fullname, maxlen, name);
 		}
+		/* Remove "/./" and "/../" so string comparisons can be used on the path. */
+		BLI_cleanup_path(NULL, fullname);
+
 #if defined(DEBUG)
 		if (!STREQ(name, fullname)) {
 			printf("guessing '%s' == '%s'\n", name, fullname);
@@ -683,13 +691,16 @@ bool BKE_appdir_program_python_search(
 	return is_found;
 }
 
+/** Keep in sync with `bpy.utils.app_template_paths()` */
 static const char *app_template_directory_search[2] = {
 	"startup" SEP_STR "bl_app_templates_user",
 	"startup" SEP_STR "bl_app_templates_system",
 };
 
 static const int app_template_directory_id[2] = {
+	/* Only 'USER' */
 	BLENDER_USER_SCRIPTS,
+	/* Covers 'LOCAL' & 'SYSTEM'. */
 	BLENDER_SYSTEM_SCRIPTS,
 };
 
diff --git a/source/blender/blenkernel/intern/armature.c b/source/blender/blenkernel/intern/armature.c
index 35b6fe113bd..669344e18d7 100644
--- a/source/blender/blenkernel/intern/armature.c
+++ b/source/blender/blenkernel/intern/armature.c
@@ -83,7 +83,7 @@ bArmature *BKE_armature_add(Main *bmain, const char *name)
 {
 	bArmature *arm;
 
-	arm = BKE_libblock_alloc(bmain, ID_AR, name);
+	arm = BKE_libblock_alloc(bmain, ID_AR, name, 0);
 	arm->deformflag = ARM_DEF_VGROUP | ARM_DEF_ENVELOPE;
 	arm->flag = ARM_COL_CUSTOM; /* custom bone-group colors */
 	arm->layer = 1;
@@ -150,54 +150,70 @@ void BKE_armature_make_local(Main *bmain, bArmature *arm, const bool lib_local)
 	BKE_id_make_local_generic(bmain, &arm->id, true, lib_local);
 }
 
-static void copy_bonechildren(Bone *newBone, const Bone *oldBone, const Bone *actBone, Bone **newActBone)
+static void copy_bonechildren(
+        Bone *bone_dst, const Bone *bone_src, const Bone *bone_src_act, Bone **r_bone_dst_act, const int flag)
 {
-	Bone *curBone, *newChildBone;
+	Bone *bone_src_child, *bone_dst_child;
 
-	if (oldBone == actBone)
-		*newActBone = newBone;
+	if (bone_src == bone_src_act) {
+		*r_bone_dst_act = bone_dst;
+	}
 
-	if (oldBone->prop)
-		newBone->prop = IDP_CopyProperty(oldBone->prop);
+	if (bone_src->prop) {
+		bone_dst->prop = IDP_CopyProperty_ex(bone_src->prop, flag);
+	}
 
 	/* Copy this bone's list */
-	BLI_duplicatelist(&newBone->childbase, &oldBone->childbase);
+	BLI_duplicatelist(&bone_dst->childbase, &bone_src->childbase);
 
 	/* For each child in the list, update it's children */
-	newChildBone = newBone->childbase.first;
-	for (curBone = oldBone->childbase.first; curBone; curBone = curBone->next) {
-		newChildBone->parent = newBone;
-		copy_bonechildren(newChildBone, curBone, actBone, newActBone);
-		newChildBone = newChildBone->next;
+	for (bone_src_child = bone_src->childbase.first, bone_dst_child = bone_dst->childbase.first;
+	     bone_src_child;
+	     bone_src_child = bone_src_child->next, bone_dst_child = bone_dst_child->next)
+	{
+		bone_dst_child->parent = bone_dst;
+		copy_bonechildren(bone_dst_child, bone_src_child, bone_src_act, r_bone_dst_act, flag);
 	}
 }
 
-bArmature *BKE_armature_copy(Main *bmain, const bArmature *arm)
+/**
+ * Only copy internal data of Armature ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_armature_copy_data(Main *UNUSED(bmain), bArmature *arm_dst, const bArmature *arm_src, const int flag)
 {
-	bArmature *newArm;
-	Bone *oldBone, *newBone;
-	Bone *newActBone = NULL;
+	Bone *bone_src, *bone_dst;
+	Bone *bone_dst_act = NULL;
+
+	/* We never handle usercount here for own data. */
+	const int flag_subdata = flag | LIB_ID_CREATE_NO_USER_REFCOUNT;
 
-	newArm = BKE_libblock_copy(bmain, &arm->id);
-	BLI_duplicatelist(&newArm->bonebase, &arm->bonebase);
+	BLI_duplicatelist(&arm_dst->bonebase, &arm_src->bonebase);
 
 	/* Duplicate the childrens' lists */
-	newBone = newArm->bonebase.first;
-	for (oldBone = arm->bonebase.first; oldBone; oldBone = oldBone->next) {
-		newBone->parent = NULL;
-		copy_bonechildren(newBone, oldBone, arm->act_bone, &newActBone);
-		newBone = newBone->next;
+	bone_dst = arm_dst->bonebase.first;
+	for (bone_src = arm_src->bonebase.first; bone_src; bone_src = bone_src->next) {
+		bone_dst->parent = NULL;
+		copy_bonechildren(bone_dst, bone_src, arm_src->act_bone, &bone_dst_act, flag_subdata);
+		bone_dst = bone_dst->next;
 	}
 
-	newArm->act_bone = newActBone;
-
-	newArm->edbo = NULL;
-	newArm->act_edbone = NULL;
-	newArm->sketch = NULL;
+	arm_dst->act_bone = bone_dst_act;
 
-	BKE_id_copy_ensure_local(bmain, &arm->id, &newArm->id);
+	arm_dst->edbo = NULL;
+	arm_dst->act_edbone = NULL;
+	arm_dst->sketch = NULL;
+}
 
-	return newArm;
+bArmature *BKE_armature_copy(Main *bmain, const bArmature *arm)
+{
+	bArmature *arm_copy;
+	BKE_id_copy_ex(bmain, &arm->id, (ID **)&arm_copy, 0, false);
+	return arm_copy;
 }
 
 static Bone *get_named_bone_bonechildren(ListBase *lb, const char *name)
diff --git a/source/blender/blenkernel/intern/armature_update.c b/source/blender/blenkernel/intern/armature_update.c
index a4714041edf..45d1d36aeca 100644
--- a/source/blender/blenkernel/intern/armature_update.c
+++ b/source/blender/blenkernel/intern/armature_update.c
@@ -559,11 +559,10 @@ void BKE_splineik_execute_tree(Scene *scene, Object *ob, bPoseChannel *pchan_roo
 /* *************** Depsgraph evaluation callbacks ************ */
 
 void BKE_pose_eval_init(EvaluationContext *UNUSED(eval_ctx),
-                        Scene *scene,
+                        Scene *UNUSED(scene),
                         Object *ob,
                         bPose *pose)
 {
-	float ctime = BKE_scene_frame_get(scene); /* not accurate... */
 	bPoseChannel *pchan;
 
 	DEBUG_PRINT("%s on %s\n", __func__, ob->id.name);
@@ -581,6 +580,16 @@ void BKE_pose_eval_init(EvaluationContext *UNUSED(eval_ctx),
 	for (pchan = pose->chanbase.first; pchan != NULL; pchan = pchan->next) {
 		pchan->flag &= ~(POSE_DONE | POSE_CHAIN | POSE_IKTREE | POSE_IKSPLINE);
 	}
+}
+
+void BKE_pose_eval_init_ik(EvaluationContext *UNUSED(eval_ctx),
+                           Scene *scene,
+                           Object *ob,
+                           bPose *UNUSED(pose))
+{
+	float ctime = BKE_scene_frame_get(scene); /* not accurate... */
+
+	DEBUG_PRINT("%s on %s\n", __func__, ob->id.name);
 
 	/* 2a. construct the IK tree (standard IK) */
 	BIK_initialize_tree(scene, ob, ctime);
diff --git a/source/blender/blenkernel/intern/blendfile.c b/source/blender/blenkernel/intern/blendfile.c
index 05ea7983b8e..980df05aca2 100644
--- a/source/blender/blenkernel/intern/blendfile.c
+++ b/source/blender/blenkernel/intern/blendfile.c
@@ -114,6 +114,7 @@ static void setup_app_data(
         const char *filepath, ReportList *reports)
 {
 	Scene *curscene = NULL;
+	const bool is_startup = (bfd->filename[0] == '\0');
 	const bool recover = (G.fileflags & G_FILE_RECOVER) != 0;
 	enum {
 		LOAD_UI = 1,
@@ -129,7 +130,7 @@ static void setup_app_data(
 	else if (BLI_listbase_is_empty(&bfd->main->screen)) {
 		mode = LOAD_UNDO;
 	}
-	else if (G.fileflags & G_FILE_NO_UI) {
+	else if ((G.fileflags & G_FILE_NO_UI) && (is_startup == false)) {
 		mode = LOAD_UI_OFF;
 	}
 	else {
@@ -250,7 +251,9 @@ static void setup_app_data(
 		CTX_data_scene_set(C, curscene);
 	}
 	else {
-		G.fileflags = bfd->fileflags;
+		/* Keep state from preferences. */
+		const int fileflags_skip = G_FILE_FLAGS_RUNTIME;
+		G.fileflags = (G.fileflags & fileflags_skip) | (bfd->fileflags & ~fileflags_skip);
 		CTX_wm_manager_set(C, G.main->wm.first);
 		CTX_wm_screen_set(C, bfd->curscreen);
 		CTX_data_scene_set(C, bfd->curscene);
diff --git a/source/blender/blenkernel/intern/brush.c b/source/blender/blenkernel/intern/brush.c
index aae323a5056..03b0710c8fc 100644
--- a/source/blender/blenkernel/intern/brush.c
+++ b/source/blender/blenkernel/intern/brush.c
@@ -152,7 +152,7 @@ Brush *BKE_brush_add(Main *bmain, const char *name, short ob_mode)
 {
 	Brush *brush;
 
-	brush = BKE_libblock_alloc(bmain, ID_BR, name);
+	brush = BKE_libblock_alloc(bmain, ID_BR, name, 0);
 
 	BKE_brush_init(brush);
 
@@ -172,34 +172,38 @@ struct Brush *BKE_brush_first_search(struct Main *bmain, short ob_mode)
 	return NULL;
 }
 
-Brush *BKE_brush_copy(Main *bmain, const Brush *brush)
+/**
+ * Only copy internal data of Brush ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_brush_copy_data(Main *UNUSED(bmain), Brush *brush_dst, const Brush *brush_src, const int flag)
 {
-	Brush *brushn;
-	
-	brushn = BKE_libblock_copy(bmain, &brush->id);
-
-	if (brush->mtex.tex)
-		id_us_plus((ID *)brush->mtex.tex);
-
-	if (brush->mask_mtex.tex)
-		id_us_plus((ID *)brush->mask_mtex.tex);
-
-	if (brush->paint_curve)
-		id_us_plus((ID *)brush->paint_curve);
-
-	if (brush->icon_imbuf)
-		brushn->icon_imbuf = IMB_dupImBuf(brush->icon_imbuf);
+	if (brush_src->icon_imbuf) {
+		brush_dst->icon_imbuf = IMB_dupImBuf(brush_src->icon_imbuf);
+	}
 
-	brushn->preview = NULL;
+	if ((flag & LIB_ID_COPY_NO_PREVIEW) == 0) {
+		BKE_previewimg_id_copy(&brush_dst->id, &brush_src->id);
+	}
+	else {
+		brush_dst->preview = NULL;
+	}
 
-	brushn->curve = curvemapping_copy(brush->curve);
+	brush_dst->curve = curvemapping_copy(brush_src->curve);
 
 	/* enable fake user by default */
-	id_fake_user_set(&brushn->id);
-
-	BKE_id_copy_ensure_local(bmain, &brush->id, &brushn->id);
+	id_fake_user_set(&brush_dst->id);
+}
 
-	return brushn;
+Brush *BKE_brush_copy(Main *bmain, const Brush *brush)
+{
+	Brush *brush_copy;
+	BKE_id_copy_ex(bmain, &brush->id, (ID **)&brush_copy, 0, false);
+	return brush_copy;
 }
 
 /** Free (or release) any data used by this brush (does not free the brush itself). */
diff --git a/source/blender/blenkernel/intern/bvhutils.c b/source/blender/blenkernel/intern/bvhutils.c
index c1fad4f80c8..775499304d4 100644
--- a/source/blender/blenkernel/intern/bvhutils.c
+++ b/source/blender/blenkernel/intern/bvhutils.c
@@ -1137,7 +1137,6 @@ BVHTree *bvhtree_from_mesh_looptri(
 	const MLoopTri *looptri = NULL;
 	bool vert_allocated = false;
 	bool loop_allocated = false;
-	bool looptri_allocated = false;
 
 	BLI_rw_mutex_lock(&cache_rwlock, THREAD_LOCK_READ);
 	tree = bvhcache_find(dm->bvhCache, BVHTREE_FROM_LOOPTRI);
@@ -1150,12 +1149,7 @@ BVHTree *bvhtree_from_mesh_looptri(
 	mpoly = DM_get_poly_array(dm, &poly_allocated);
 
 	mloop = DM_get_loop_array(dm, &loop_allocated);
-	looptri = DM_get_looptri_array(
-	        dm,
-	        mvert,
-	        mpoly, dm->getNumPolys(dm),
-	        mloop, dm->getNumLoops(dm),
-	        &looptri_allocated);
+	looptri = dm->getLoopTriArray(dm);
 
 	if (poly_allocated) {
 		MEM_freeN(mpoly);
@@ -1193,7 +1187,7 @@ BVHTree *bvhtree_from_mesh_looptri(
 		        data, tree, true, epsilon,
 		        mvert, vert_allocated,
 		        mloop, loop_allocated,
-		        looptri, looptri_allocated);
+		        looptri, false);
 	}
 	else {
 		if (vert_allocated) {
@@ -1202,9 +1196,6 @@ BVHTree *bvhtree_from_mesh_looptri(
 		if (loop_allocated) {
 			MEM_freeN(mloop);
 		}
-		if (looptri_allocated) {
-			MEM_freeN((void *)looptri);
-		}
 		memset(data, 0, sizeof(*data));
 	}
 
diff --git a/source/blender/blenkernel/intern/cachefile.c b/source/blender/blenkernel/intern/cachefile.c
index cf619a32783..1916531b066 100644
--- a/source/blender/blenkernel/intern/cachefile.c
+++ b/source/blender/blenkernel/intern/cachefile.c
@@ -66,7 +66,7 @@ void BKE_cachefiles_exit(void)
 
 void *BKE_cachefile_add(Main *bmain, const char *name)
 {
-	CacheFile *cache_file = BKE_libblock_alloc(bmain, ID_CF, name);
+	CacheFile *cache_file = BKE_libblock_alloc(bmain, ID_CF, name, 0);
 
 	BKE_cachefile_init(cache_file);
 
@@ -100,16 +100,26 @@ void BKE_cachefile_free(CacheFile *cache_file)
 	BLI_freelistN(&cache_file->object_paths);
 }
 
-CacheFile *BKE_cachefile_copy(Main *bmain, const CacheFile *cache_file)
+/**
+ * Only copy internal data of CacheFile ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_cachefile_copy_data(
+        Main *UNUSED(bmain), CacheFile *cache_file_dst, const CacheFile *UNUSED(cache_file_src), const int UNUSED(flag))
 {
-	CacheFile *new_cache_file = BKE_libblock_copy(bmain, &cache_file->id);
-	new_cache_file->handle = NULL;
-
-	BLI_listbase_clear(&new_cache_file->object_paths);
-
-	BKE_id_copy_ensure_local(bmain, &cache_file->id, &new_cache_file->id);
+	cache_file_dst->handle = NULL;
+	BLI_listbase_clear(&cache_file_dst->object_paths);
+}
 
-	return new_cache_file;
+CacheFile *BKE_cachefile_copy(Main *bmain, const CacheFile *cache_file)
+{
+	CacheFile *cache_file_copy;
+	BKE_id_copy_ex(bmain, &cache_file->id, (ID **)&cache_file_copy, 0, false);
+	return cache_file_copy;
 }
 
 void BKE_cachefile_make_local(Main *bmain, CacheFile *cache_file, const bool lib_local)
diff --git a/source/blender/blenkernel/intern/camera.c b/source/blender/blenkernel/intern/camera.c
index 915c08674a4..719125b3317 100644
--- a/source/blender/blenkernel/intern/camera.c
+++ b/source/blender/blenkernel/intern/camera.c
@@ -86,22 +86,31 @@ void *BKE_camera_add(Main *bmain, const char *name)
 {
 	Camera *cam;
 
-	cam =  BKE_libblock_alloc(bmain, ID_CA, name);
+	cam =  BKE_libblock_alloc(bmain, ID_CA, name, 0);
 
 	BKE_camera_init(cam);
 
 	return cam;
 }
 
-Camera *BKE_camera_copy(Main *bmain, const Camera *cam)
+/**
+ * Only copy internal data of Camera ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_camera_copy_data(Main *UNUSED(bmain), Camera *UNUSED(cam_dst), const Camera *UNUSED(cam_src), const int UNUSED(flag))
 {
-	Camera *camn;
-	
-	camn = BKE_libblock_copy(bmain, &cam->id);
-
-	BKE_id_copy_ensure_local(bmain, &cam->id, &camn->id);
+	/* Nothing to do! */
+}
 
-	return camn;
+Camera *BKE_camera_copy(Main *bmain, const Camera *cam)
+{
+	Camera *cam_copy;
+	BKE_id_copy_ex(bmain, &cam->id, (ID **)&cam_copy, 0, false);
+	return cam_copy;
 }
 
 void BKE_camera_make_local(Main *bmain, Camera *cam, const bool lib_local)
diff --git a/source/blender/blenkernel/intern/cdderivedmesh.c b/source/blender/blenkernel/intern/cdderivedmesh.c
index 46a067ea0bc..2ed5cc450a4 100644
--- a/source/blender/blenkernel/intern/cdderivedmesh.c
+++ b/source/blender/blenkernel/intern/cdderivedmesh.c
@@ -34,10 +34,12 @@
  *  \ingroup bke
  */
 
+#include "atomic_ops.h"
+
 #include "BLI_math.h"
 #include "BLI_edgehash.h"
 #include "BLI_utildefines.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 
 #include "BKE_pbvh.h"
 #include "BKE_cdderivedmesh.h"
@@ -660,6 +662,11 @@ static void cdDM_drawMappedFaces(
 
 	const int *index_mp_to_orig  = dm->getPolyDataArray(dm, CD_ORIGINDEX);
 
+	if (cddm->pbvh) {
+		if (G.debug_value == 14)
+			BKE_pbvh_draw_BB(cddm->pbvh);
+	}
+
 	/* fist, setup common buffers */
 	GPU_vertex_setup(dm);
 	GPU_triangle_setup(dm);
@@ -745,8 +752,18 @@ static void cdDM_drawMappedFaces(
 		/* avoid buffer problems in following code */
 	}
 	else if (setDrawOptions == NULL) {
+		const bool show_alpha = true;
+		if (show_alpha) {
+			glEnable(GL_BLEND);
+			glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+		}
+
 		/* just draw the entire face array */
 		GPU_buffer_draw_elements(dm->drawObject->triangles, GL_TRIANGLES, 0, tot_tri_elem);
+
+		if (show_alpha) {
+			glDisable(GL_BLEND);
+		}
 	}
 	else {
 		for (mat_index = 0; mat_index < dm->drawObject->totmaterial; mat_index++) {
@@ -1518,8 +1535,8 @@ static void cdDM_buffer_copy_mcol(
 
 	for (i = 0; i < totpoly; i++, mpoly++) {
 		for (j = 0; j < mpoly->totloop; j++) {
-			copy_v3_v3_uchar(&varray[start], &mloopcol[mpoly->loopstart + j].r);
-			start += 3;
+			copy_v4_v4_uchar(&varray[start], &mloopcol[mpoly->loopstart + j].r);
+			start += 4;
 		}
 	}
 }
@@ -1919,25 +1936,17 @@ void CDDM_recalc_looptri(DerivedMesh *dm)
 	const unsigned int totloop = dm->numLoopData;
 
 	DM_ensure_looptri_data(dm);
+	BLI_assert(totpoly == 0 || cddm->dm.looptris.array_wip != NULL);
 
 	BKE_mesh_recalc_looptri(
 	        cddm->mloop, cddm->mpoly,
 	        cddm->mvert,
 	        totloop, totpoly,
-	        cddm->dm.looptris.array);
-}
-
-static const MLoopTri *cdDM_getLoopTriArray(DerivedMesh *dm)
-{
-	if (dm->looptris.array) {
-		BLI_assert(poly_to_tri_count(dm->numPolyData, dm->numLoopData) == dm->looptris.num);
-	}
-	else {
-		dm->recalcLoopTri(dm);
+	        cddm->dm.looptris.array_wip);
 
-		/* ccdm is an exception here, that recalcLoopTri will fill in the array too  */
-	}
-	return dm->looptris.array;
+	BLI_assert(cddm->dm.looptris.array == NULL);
+	atomic_cas_ptr((void **)&cddm->dm.looptris.array, cddm->dm.looptris.array, cddm->dm.looptris.array_wip);
+	cddm->dm.looptris.array_wip = NULL;
 }
 
 static void cdDM_free_internal(CDDerivedMesh *cddm)
@@ -1990,8 +1999,6 @@ static CDDerivedMesh *cdDM_create(const char *desc)
 	dm->getEdgeDataArray = DM_get_edge_data_layer;
 	dm->getTessFaceDataArray = DM_get_tessface_data_layer;
 
-	dm->getLoopTriArray = cdDM_getLoopTriArray;
-
 	dm->calcNormals = CDDM_calc_normals;
 	dm->calcLoopNormals = CDDM_calc_loop_normals;
 	dm->calcLoopNormalsSpaceArray = CDDM_calc_loop_normals_spacearr;
@@ -3184,7 +3191,7 @@ DerivedMesh *CDDM_merge_verts(DerivedMesh *dm, const int *vtargetmap, const int
 						MPoly *target_poly = cddm->mpoly + *(cddm->pmap[v_target].indices + i_poly);
 
 						if (cddm_poly_compare(cddm->mloop, mp, target_poly, vtargetmap, +1) ||
-							cddm_poly_compare(cddm->mloop, mp, target_poly, vtargetmap, -1))
+						    cddm_poly_compare(cddm->mloop, mp, target_poly, vtargetmap, -1))
 						{
 							found = true;
 							break;
diff --git a/source/blender/blenkernel/intern/cloth.c b/source/blender/blenkernel/intern/cloth.c
index ee0fde1ea61..dd93606a67c 100644
--- a/source/blender/blenkernel/intern/cloth.c
+++ b/source/blender/blenkernel/intern/cloth.c
@@ -807,7 +807,6 @@ static int cloth_from_object(Object *ob, ClothModifierData *clmd, DerivedMesh *d
 	if ( !dm )
 		return 0;
 
-	DM_ensure_looptri(dm);
 	cloth_from_mesh ( clmd, dm );
 
 	// create springs
diff --git a/source/blender/blenkernel/intern/constraint.c b/source/blender/blenkernel/intern/constraint.c
index 07a6b304dff..7ad2ed91e87 100644
--- a/source/blender/blenkernel/intern/constraint.c
+++ b/source/blender/blenkernel/intern/constraint.c
@@ -1019,7 +1019,7 @@ static void vectomat(const float vec[3], const float target_up[3], short axis, s
 	}
 
 	/* project the up vector onto the plane specified by n */
-	project_v3_v3v3(proj, u, n); /* first u onto n... */
+	project_v3_v3v3_normalized(proj, u, n); /* first u onto n... */
 	sub_v3_v3v3(proj, u, proj); /* then onto the plane */
 	/* proj specifies the transformation of the up axis */
 
@@ -1930,7 +1930,7 @@ static void samevolume_evaluate(bConstraint *con, bConstraintOb *cob, ListBase *
 	
 	/* calculate normalizing scale factor for non-essential values */
 	if (obsize[data->flag] != 0) 
-		fac = sqrtf(volume / obsize[data->flag]) / obsize[data->flag];
+		fac = sqrtf(volume / obsize[data->flag]);
 	
 	/* apply scaling factor to the channels not being kept */
 	switch (data->flag) {
@@ -4737,29 +4737,30 @@ static void con_fix_copied_refs_cb(bConstraint *UNUSED(con), ID **idpoin, bool i
 }
 
 /* duplicate all of the constraints in a constraint stack */
-void BKE_constraints_copy(ListBase *dst, const ListBase *src, bool do_extern)
+void BKE_constraints_copy_ex(ListBase *dst, const ListBase *src, const int flag, bool do_extern)
 {
 	bConstraint *con, *srccon;
-	
+
 	BLI_listbase_clear(dst);
 	BLI_duplicatelist(dst, src);
-	
+
 	for (con = dst->first, srccon = src->first; con && srccon; srccon = srccon->next, con = con->next) {
 		const bConstraintTypeInfo *cti = BKE_constraint_typeinfo_get(con);
-		
+
 		/* make a new copy of the constraint's data */
 		con->data = MEM_dupallocN(con->data);
-		
+
 		/* only do specific constraints if required */
 		if (cti) {
 			/* perform custom copying operations if needed */
 			if (cti->copy_data)
 				cti->copy_data(con, srccon);
-				
-			/* fix usercounts for all referenced data in referenced data */
-			if (cti->id_looper)
+
+			/* Fix usercounts for all referenced data that need it. */
+			if (cti->id_looper && (flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
 				cti->id_looper(con, con_fix_copied_refs_cb, NULL);
-			
+			}
+
 			/* for proxies we don't want to make extern */
 			if (do_extern) {
 				/* go over used ID-links for this constraint to ensure that they are valid for proxies */
@@ -4770,6 +4771,11 @@ void BKE_constraints_copy(ListBase *dst, const ListBase *src, bool do_extern)
 	}
 }
 
+void BKE_constraints_copy(ListBase *dst, const ListBase *src, bool do_extern)
+{
+	BKE_constraints_copy_ex(dst, src, 0, do_extern);
+}
+
 /* ......... */
 
 bConstraint *BKE_constraints_find_name(ListBase *list, const char *name)
diff --git a/source/blender/blenkernel/intern/curve.c b/source/blender/blenkernel/intern/curve.c
index 7c22a34c7d1..9c7473f24d1 100644
--- a/source/blender/blenkernel/intern/curve.c
+++ b/source/blender/blenkernel/intern/curve.c
@@ -179,7 +179,7 @@ Curve *BKE_curve_add(Main *bmain, const char *name, int type)
 {
 	Curve *cu;
 
-	cu = BKE_libblock_alloc(bmain, ID_CU, name);
+	cu = BKE_libblock_alloc(bmain, ID_CU, name, 0);
 	cu->type = type;
 
 	BKE_curve_init(cu);
@@ -187,42 +187,39 @@ Curve *BKE_curve_add(Main *bmain, const char *name, int type)
 	return cu;
 }
 
-Curve *BKE_curve_copy(Main *bmain, const Curve *cu)
+/**
+ * Only copy internal data of Curve ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_curve_copy_data(Main *bmain, Curve *cu_dst, const Curve *cu_src, const int flag)
 {
-	Curve *cun;
-	int a;
+	BLI_listbase_clear(&cu_dst->nurb);
+	BKE_nurbList_duplicate(&(cu_dst->nurb), &(cu_src->nurb));
 
-	cun = BKE_libblock_copy(bmain, &cu->id);
+	cu_dst->mat = MEM_dupallocN(cu_src->mat);
 
-	BLI_listbase_clear(&cun->nurb);
-	BKE_nurbList_duplicate(&(cun->nurb), &(cu->nurb));
+	cu_dst->str = MEM_dupallocN(cu_src->str);
+	cu_dst->strinfo = MEM_dupallocN(cu_src->strinfo);
+	cu_dst->tb = MEM_dupallocN(cu_src->tb);
+	cu_dst->bb = MEM_dupallocN(cu_src->bb);
 
-	cun->mat = MEM_dupallocN(cu->mat);
-	for (a = 0; a < cun->totcol; a++) {
-		id_us_plus((ID *)cun->mat[a]);
+	if (cu_src->key) {
+		BKE_id_copy_ex(bmain, &cu_src->key->id, (ID **)&cu_dst->key, flag, false);
 	}
 
-	cun->str = MEM_dupallocN(cu->str);
-	cun->strinfo = MEM_dupallocN(cu->strinfo);
-	cun->tb = MEM_dupallocN(cu->tb);
-	cun->bb = MEM_dupallocN(cu->bb);
-
-	if (cu->key) {
-		cun->key = BKE_key_copy(bmain, cu->key);
-		cun->key->from = (ID *)cun;
-	}
-
-	cun->editnurb = NULL;
-	cun->editfont = NULL;
-
-	id_us_plus((ID *)cun->vfont);
-	id_us_plus((ID *)cun->vfontb);
-	id_us_plus((ID *)cun->vfonti);
-	id_us_plus((ID *)cun->vfontbi);
-
-	BKE_id_copy_ensure_local(bmain, &cu->id, &cun->id);
+	cu_dst->editnurb = NULL;
+	cu_dst->editfont = NULL;
+}
 
-	return cun;
+Curve *BKE_curve_copy(Main *bmain, const Curve *cu)
+{
+	Curve *cu_copy;
+	BKE_id_copy_ex(bmain, &cu->id, (ID **)&cu_copy, 0, false);
+	return cu_copy;
 }
 
 void BKE_curve_make_local(Main *bmain, Curve *cu, const bool lib_local)
@@ -4042,7 +4039,7 @@ bool BKE_nurb_check_valid_u(struct Nurb *nu)
 		return true;           /* not a nurb, lets assume its valid */
 
 	if (nu->pntsu < nu->orderu) return false;
-	if (((nu->flag & CU_NURB_CYCLIC) == 0) && (nu->flagu & CU_NURB_BEZIER)) { /* Bezier U Endpoints */
+	if (((nu->flagu & CU_NURB_CYCLIC) == 0) && (nu->flagu & CU_NURB_BEZIER)) { /* Bezier U Endpoints */
 		if (nu->orderu == 4) {
 			if (nu->pntsu < 5)
 				return false;  /* bezier with 4 orderu needs 5 points */
@@ -4063,7 +4060,7 @@ bool BKE_nurb_check_valid_v(struct Nurb *nu)
 
 	if (nu->pntsv < nu->orderv)
 		return false;
-	if (((nu->flag & CU_NURB_CYCLIC) == 0) && (nu->flagv & CU_NURB_BEZIER)) { /* Bezier V Endpoints */
+	if (((nu->flagv & CU_NURB_CYCLIC) == 0) && (nu->flagv & CU_NURB_BEZIER)) { /* Bezier V Endpoints */
 		if (nu->orderv == 4) {
 			if (nu->pntsv < 5)
 				return false;  /* bezier with 4 orderu needs 5 points */
@@ -4445,7 +4442,9 @@ bool BKE_curve_center_bounds(Curve *cu, float cent[3])
 }
 
 
-void BKE_curve_transform_ex(Curve *cu, float mat[4][4], const bool do_keys, const float unit_scale)
+void BKE_curve_transform_ex(
+        Curve *cu, float mat[4][4],
+        const bool do_keys, const bool do_props, const float unit_scale)
 {
 	Nurb *nu;
 	BPoint *bp;
@@ -4459,7 +4458,9 @@ void BKE_curve_transform_ex(Curve *cu, float mat[4][4], const bool do_keys, cons
 				mul_m4_v3(mat, bezt->vec[0]);
 				mul_m4_v3(mat, bezt->vec[1]);
 				mul_m4_v3(mat, bezt->vec[2]);
-				bezt->radius *= unit_scale;
+				if (do_props) {
+					bezt->radius *= unit_scale;
+				}
 			}
 			BKE_nurb_handles_calc(nu);
 		}
@@ -4467,7 +4468,9 @@ void BKE_curve_transform_ex(Curve *cu, float mat[4][4], const bool do_keys, cons
 			i = nu->pntsu * nu->pntsv;
 			for (bp = nu->bp; i--; bp++) {
 				mul_m4_v3(mat, bp->vec);
-				bp->radius *= unit_scale;
+				if (do_props) {
+					bp->radius *= unit_scale;
+				}
 			}
 		}
 	}
@@ -4483,10 +4486,12 @@ void BKE_curve_transform_ex(Curve *cu, float mat[4][4], const bool do_keys, cons
 	}
 }
 
-void BKE_curve_transform(Curve *cu, float mat[4][4], const bool do_keys)
+void BKE_curve_transform(
+        Curve *cu, float mat[4][4],
+        const bool do_keys, const bool do_props)
 {
 	float unit_scale = mat4_to_scale(mat);
-	BKE_curve_transform_ex(cu, mat, do_keys, unit_scale);
+	BKE_curve_transform_ex(cu, mat, do_keys, do_props, unit_scale);
 }
 
 void BKE_curve_translate(Curve *cu, float offset[3], const bool do_keys)
@@ -4675,14 +4680,3 @@ void BKE_curve_eval_geometry(EvaluationContext *UNUSED(eval_ctx),
 		BKE_curve_texspace_calc(curve);
 	}
 }
-
-void BKE_curve_eval_path(EvaluationContext *UNUSED(eval_ctx),
-                         Curve *curve)
-{
-	/* TODO(sergey): This will probably need to be a part of
-	 * the modifier stack still.
-	 */
-	if (G.debug & G_DEBUG_DEPSGRAPH) {
-		printf("%s on %s\n", __func__, curve->id.name);
-	}
-}
diff --git a/source/blender/blenkernel/intern/customdata.c b/source/blender/blenkernel/intern/customdata.c
index 0939d35ed8d..68acb60f21a 100644
--- a/source/blender/blenkernel/intern/customdata.c
+++ b/source/blender/blenkernel/intern/customdata.c
@@ -828,10 +828,10 @@ static void layerInterp_mloopcol(
 	 * although weights should also not cause this situation */
 
 	/* also delay writing to the destination incase dest is in sources */
-	mc->r = CLAMPIS(iroundf(col.r), 0, 255);
-	mc->g = CLAMPIS(iroundf(col.g), 0, 255);
-	mc->b = CLAMPIS(iroundf(col.b), 0, 255);
-	mc->a = CLAMPIS(iroundf(col.a), 0, 255);
+	mc->r = round_fl_to_uchar_clamp(col.r);
+	mc->g = round_fl_to_uchar_clamp(col.g);
+	mc->b = round_fl_to_uchar_clamp(col.b);
+	mc->a = round_fl_to_uchar_clamp(col.a);
 }
 
 static int layerMaxNum_mloopcol(void)
@@ -1054,10 +1054,10 @@ static void layerInterp_mcol(
 		
 		/* Subdivide smooth or fractal can cause problems without clamping
 		 * although weights should also not cause this situation */
-		mc[j].a = CLAMPIS(iroundf(col[j].a), 0, 255);
-		mc[j].r = CLAMPIS(iroundf(col[j].r), 0, 255);
-		mc[j].g = CLAMPIS(iroundf(col[j].g), 0, 255);
-		mc[j].b = CLAMPIS(iroundf(col[j].b), 0, 255);
+		mc[j].a = round_fl_to_uchar_clamp(col[j].a);
+		mc[j].r = round_fl_to_uchar_clamp(col[j].r);
+		mc[j].g = round_fl_to_uchar_clamp(col[j].g);
+		mc[j].b = round_fl_to_uchar_clamp(col[j].b);
 	}
 }
 
diff --git a/source/blender/blenkernel/intern/deform.c b/source/blender/blenkernel/intern/deform.c
index 69baaf5e58a..eec8d2478da 100644
--- a/source/blender/blenkernel/intern/deform.c
+++ b/source/blender/blenkernel/intern/deform.c
@@ -621,8 +621,17 @@ float defvert_find_weight(const struct MDeformVert *dvert, const int defgroup)
  */
 float defvert_array_find_weight_safe(const struct MDeformVert *dvert, const int index, const int defgroup)
 {
-	if (defgroup == -1 || dvert == NULL)
+	/* Invalid defgroup index means the vgroup selected is invalid, does not exist, in that case it is OK to return 1.0
+	 * (i.e. maximum weight, as if no vgroup was selected).
+	 * But in case of valid defgroup and NULL dvert data pointer, it means that vgroup **is** valid,
+	 * and just totally empty, so we shall return '0.0' value then!
+	*/
+	if (defgroup == -1) {
 		return 1.0f;
+	}
+	else if (dvert == NULL) {
+		return 0.0f;
+	}
 
 	return defvert_find_weight(dvert + index, defgroup);
 }
diff --git a/source/blender/blenkernel/intern/depsgraph.c b/source/blender/blenkernel/intern/depsgraph.c
index 019e0df1623..3ddf0f43d30 100644
--- a/source/blender/blenkernel/intern/depsgraph.c
+++ b/source/blender/blenkernel/intern/depsgraph.c
@@ -2018,6 +2018,7 @@ void DAG_scene_flush_update(Main *bmain, Scene *sce, unsigned int lay, const sho
 	int lasttime;
 
 	if (!DEG_depsgraph_use_legacy()) {
+		DEG_scene_flush_update(bmain, sce);
 		return;
 	}
 
diff --git a/source/blender/blenkernel/intern/dynamicpaint.c b/source/blender/blenkernel/intern/dynamicpaint.c
index 1db69d23607..ae896176b6d 100644
--- a/source/blender/blenkernel/intern/dynamicpaint.c
+++ b/source/blender/blenkernel/intern/dynamicpaint.c
@@ -2060,9 +2060,6 @@ DerivedMesh *dynamicPaint_Modifier_do(DynamicPaintModifierData *pmd, Scene *scen
 	if (pmd->canvas) {
 		DerivedMesh *ret;
 
-		/* For now generate looptris in every case */
-		DM_ensure_looptri(dm);
-
 		/* Update canvas data for a new frame */
 		dynamicPaint_frameUpdate(pmd, scene, ob, dm);
 
@@ -2072,9 +2069,6 @@ DerivedMesh *dynamicPaint_Modifier_do(DynamicPaintModifierData *pmd, Scene *scen
 		return ret;
 	}
 	else {
-		/* For now generate looptris in every case */
-		DM_ensure_looptri(dm);
-
 		/* Update canvas data for a new frame */
 		dynamicPaint_frameUpdate(pmd, scene, ob, dm);
 
diff --git a/source/blender/blenkernel/intern/editderivedmesh.c b/source/blender/blenkernel/intern/editderivedmesh.c
index ab614b8f460..d810dac7365 100644
--- a/source/blender/blenkernel/intern/editderivedmesh.c
+++ b/source/blender/blenkernel/intern/editderivedmesh.c
@@ -41,6 +41,8 @@
  * is likely to be a little slow.
  */
 
+#include "atomic_ops.h"
+
 #include "BLI_math.h"
 #include "BLI_jitter.h"
 #include "BLI_bitmap.h"
@@ -641,8 +643,9 @@ static void emDM_recalcLoopTri(DerivedMesh *dm)
 	int i;
 
 	DM_ensure_looptri_data(dm);
-	mlooptri = dm->looptris.array;
+	mlooptri = dm->looptris.array_wip;
 
+	BLI_assert(tottri == 0 || mlooptri != NULL);
 	BLI_assert(poly_to_tri_count(dm->numPolyData, dm->numLoopData) == dm->looptris.num);
 	BLI_assert(tottri == dm->looptris.num);
 
@@ -659,18 +662,10 @@ static void emDM_recalcLoopTri(DerivedMesh *dm)
 		        BM_elem_index_get(ltri[2]));
 		lt->poly = BM_elem_index_get(ltri[0]->f);
 	}
-}
-
-static const MLoopTri *emDM_getLoopTriArray(DerivedMesh *dm)
-{
-	if (dm->looptris.array) {
-		BLI_assert(poly_to_tri_count(dm->numPolyData, dm->numLoopData) == dm->looptris.num);
-	}
-	else {
-		dm->recalcLoopTri(dm);
-	}
 
-	return dm->looptris.array;
+	BLI_assert(dm->looptris.array == NULL);
+	atomic_cas_ptr((void **)&dm->looptris.array, dm->looptris.array, dm->looptris.array_wip);
+	dm->looptris.array_wip = NULL;
 }
 
 static void emDM_foreachMappedVert(
@@ -2259,8 +2254,6 @@ DerivedMesh *getEditDerivedBMesh(
 	bmdm->dm.getNumLoops = emDM_getNumLoops;
 	bmdm->dm.getNumPolys = emDM_getNumPolys;
 
-	bmdm->dm.getLoopTriArray = emDM_getLoopTriArray;
-
 	bmdm->dm.getVert = emDM_getVert;
 	bmdm->dm.getVertCo = emDM_getVertCo;
 	bmdm->dm.getVertNo = emDM_getVertNo;
diff --git a/source/blender/blenkernel/intern/fluidsim.c b/source/blender/blenkernel/intern/fluidsim.c
index 8247336d915..8e98a9f672d 100644
--- a/source/blender/blenkernel/intern/fluidsim.c
+++ b/source/blender/blenkernel/intern/fluidsim.c
@@ -80,8 +80,6 @@ void initElbeemMesh(struct Scene *scene, struct Object *ob,
 
 	dm = mesh_create_derived_index_render(scene, ob, CD_MASK_BAREMESH, modifierIndex);
 
-	DM_ensure_looptri(dm);
-
 	mvert = dm->getVertArray(dm);
 	mloop = dm->getLoopArray(dm);
 	looptri = dm->getLoopTriArray(dm);
diff --git a/source/blender/blenkernel/intern/font.c b/source/blender/blenkernel/intern/font.c
index 401fed74c52..d6b28cfaf70 100644
--- a/source/blender/blenkernel/intern/font.c
+++ b/source/blender/blenkernel/intern/font.c
@@ -106,6 +106,23 @@ void BKE_vfont_free(struct VFont *vf)
 	}
 }
 
+void BKE_vfont_copy_data(Main *UNUSED(bmain), VFont *vfont_dst, const VFont *UNUSED(vfont_src), const int flag)
+{
+	/* We never handle usercount here for own data. */
+	const int flag_subdata = flag | LIB_ID_CREATE_NO_USER_REFCOUNT;
+
+	/* Just to be sure, should not have any value actually after reading time. */
+	vfont_dst->temp_pf = NULL;
+
+	if (vfont_dst->packedfile) {
+		vfont_dst->packedfile = dupPackedFile(vfont_dst->packedfile);
+	}
+
+	if (vfont_dst->data) {
+		vfont_dst->data = BLI_vfontdata_copy(vfont_dst->data, flag_subdata);
+	}
+}
+
 static void *builtin_font_data = NULL;
 static int builtin_font_size = 0;
 
@@ -249,7 +266,7 @@ VFont *BKE_vfont_load(Main *bmain, const char *filepath)
 
 		vfd = BLI_vfontdata_from_freetypefont(pf);
 		if (vfd) {
-			vfont = BKE_libblock_alloc(bmain, ID_VF, filename);
+			vfont = BKE_libblock_alloc(bmain, ID_VF, filename, 0);
 			vfont->data = vfd;
 
 			/* if there's a font name, use it for the ID name */
diff --git a/source/blender/blenkernel/intern/freestyle.c b/source/blender/blenkernel/intern/freestyle.c
index 0a0b023df82..e45a938a4fc 100644
--- a/source/blender/blenkernel/intern/freestyle.c
+++ b/source/blender/blenkernel/intern/freestyle.c
@@ -44,7 +44,7 @@
 
 // function declarations
 static FreestyleLineSet *alloc_lineset(void);
-static void copy_lineset(FreestyleLineSet *new_lineset, FreestyleLineSet *lineset);
+static void copy_lineset(FreestyleLineSet *new_lineset, FreestyleLineSet *lineset, const int flag);
 static FreestyleModuleConfig *alloc_module(void);
 static void copy_module(FreestyleModuleConfig *new_module, FreestyleModuleConfig *module);
 
@@ -79,7 +79,7 @@ void BKE_freestyle_config_free(FreestyleConfig *config)
 	BLI_freelistN(&config->modules);
 }
 
-void BKE_freestyle_config_copy(FreestyleConfig *new_config, FreestyleConfig *config)
+void BKE_freestyle_config_copy(FreestyleConfig *new_config, FreestyleConfig *config, const int flag)
 {
 	FreestyleLineSet *lineset, *new_lineset;
 	FreestyleModuleConfig *module, *new_module;
@@ -93,7 +93,7 @@ void BKE_freestyle_config_copy(FreestyleConfig *new_config, FreestyleConfig *con
 	BLI_listbase_clear(&new_config->linesets);
 	for (lineset = (FreestyleLineSet *)config->linesets.first; lineset; lineset = lineset->next) {
 		new_lineset = alloc_lineset();
-		copy_lineset(new_lineset, lineset);
+		copy_lineset(new_lineset, lineset, flag);
 		BLI_addtail(&new_config->linesets, (void *)new_lineset);
 	}
 
@@ -105,11 +105,9 @@ void BKE_freestyle_config_copy(FreestyleConfig *new_config, FreestyleConfig *con
 	}
 }
 
-static void copy_lineset(FreestyleLineSet *new_lineset, FreestyleLineSet *lineset)
+static void copy_lineset(FreestyleLineSet *new_lineset, FreestyleLineSet *lineset, const int flag)
 {
 	new_lineset->linestyle = lineset->linestyle;
-	if (new_lineset->linestyle)
-		id_us_plus(&new_lineset->linestyle->id);
 	new_lineset->flags = lineset->flags;
 	new_lineset->selection = lineset->selection;
 	new_lineset->qi = lineset->qi;
@@ -118,10 +116,12 @@ static void copy_lineset(FreestyleLineSet *new_lineset, FreestyleLineSet *linese
 	new_lineset->edge_types = lineset->edge_types;
 	new_lineset->exclude_edge_types = lineset->exclude_edge_types;
 	new_lineset->group = lineset->group;
-	if (new_lineset->group) {
-		id_us_plus(&new_lineset->group->id);
-	}
 	strcpy(new_lineset->name, lineset->name);
+
+	if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
+		id_us_plus((ID *)new_lineset->linestyle);
+		id_us_plus((ID *)new_lineset->group);
+	}
 }
 
 static FreestyleModuleConfig *alloc_module(void)
diff --git a/source/blender/blenkernel/intern/gpencil.c b/source/blender/blenkernel/intern/gpencil.c
index 758438bb051..ee0d0b41898 100644
--- a/source/blender/blenkernel/intern/gpencil.c
+++ b/source/blender/blenkernel/intern/gpencil.c
@@ -627,7 +627,7 @@ bGPdata *BKE_gpencil_data_addnew(const char name[])
 	bGPdata *gpd;
 	
 	/* allocate memory for a new block */
-	gpd = BKE_libblock_alloc(G.main, ID_GD, name);
+	gpd = BKE_libblock_alloc(G.main, ID_GD, name, 0);
 	
 	/* initial settings */
 	gpd->flag = (GP_DATA_DISPINFO | GP_DATA_EXPAND);
@@ -753,47 +753,62 @@ bGPDlayer *BKE_gpencil_layer_duplicate(const bGPDlayer *gpl_src)
 	return gpl_dst;
 }
 
-/* make a copy of a given gpencil datablock */
-bGPdata *BKE_gpencil_data_duplicate(Main *bmain, const bGPdata *gpd_src, bool internal_copy)
+/**
+ * Only copy internal data of GreasePencil ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_gpencil_copy_data(Main *UNUSED(bmain), bGPdata *gpd_dst, const bGPdata *gpd_src, const int UNUSED(flag))
 {
-	const bGPDlayer *gpl_src;
-	bGPDlayer *gpl_dst;
-	bGPdata *gpd_dst;
+	/* copy layers */
+	BLI_listbase_clear(&gpd_dst->layers);
+	for (const bGPDlayer *gpl_src = gpd_src->layers.first; gpl_src; gpl_src = gpl_src->next) {
+		/* make a copy of source layer and its data */
+		bGPDlayer *gpl_dst = BKE_gpencil_layer_duplicate(gpl_src);  /* TODO here too could add unused flags... */
+		BLI_addtail(&gpd_dst->layers, gpl_dst);
+	}
 
-	/* error checking */
-	if (gpd_src == NULL) {
-		return NULL;
+	/* copy palettes */
+	BLI_listbase_clear(&gpd_dst->palettes);
+	for (const bGPDpalette *palette_src = gpd_src->palettes.first; palette_src; palette_src = palette_src->next) {
+		bGPDpalette *palette_dst = BKE_gpencil_palette_duplicate(palette_src);  /* TODO here too could add unused flags... */
+		BLI_addtail(&gpd_dst->palettes, palette_dst);
 	}
-	
-	/* make a copy of the base-data */
+}
+
+/* make a copy of a given gpencil datablock */
+bGPdata *BKE_gpencil_data_duplicate(Main *bmain, const bGPdata *gpd_src, bool internal_copy)
+{
+	/* Yuck and super-uber-hyper yuck!!!
+	 * Should be replaceable with a no-main copy (LIB_ID_COPY_NO_MAIN etc.), but not sure about it,
+	 * so for now keep old code for that one. */
 	if (internal_copy) {
+		const bGPDlayer *gpl_src;
+		bGPDlayer *gpl_dst;
+		bGPdata *gpd_dst;
+
 		/* make a straight copy for undo buffers used during stroke drawing */
 		gpd_dst = MEM_dupallocN(gpd_src);
+
+		/* copy layers */
+		BLI_listbase_clear(&gpd_dst->layers);
+		for (gpl_src = gpd_src->layers.first; gpl_src; gpl_src = gpl_src->next) {
+			/* make a copy of source layer and its data */
+			gpl_dst = BKE_gpencil_layer_duplicate(gpl_src);
+			BLI_addtail(&gpd_dst->layers, gpl_dst);
+		}
+
+		/* return new */
+		return gpd_dst;
 	}
 	else {
-		/* make a copy when others use this */
-		gpd_dst = BKE_libblock_copy(bmain, &gpd_src->id);
-	}
-	
-	/* copy layers */
-	BLI_listbase_clear(&gpd_dst->layers);
-	for (gpl_src = gpd_src->layers.first; gpl_src; gpl_src = gpl_src->next) {
-		/* make a copy of source layer and its data */
-		gpl_dst = BKE_gpencil_layer_duplicate(gpl_src);
-		BLI_addtail(&gpd_dst->layers, gpl_dst);
-	}
-	if (!internal_copy) {
-		/* copy palettes */
-		bGPDpalette *palette_src, *palette_dst;
-		BLI_listbase_clear(&gpd_dst->palettes);
-		for (palette_src = gpd_src->palettes.first; palette_src; palette_src = palette_src->next) {
-			palette_dst = BKE_gpencil_palette_duplicate(palette_src);
-			BLI_addtail(&gpd_dst->palettes, palette_dst);
-		}
+		bGPdata *gpd_copy;
+		BKE_id_copy_ex(bmain, &gpd_src->id, (ID **)&gpd_copy, 0, false);
+		return gpd_copy;
 	}
-	
-	/* return new */
-	return gpd_dst;
 }
 
 void BKE_gpencil_make_local(Main *bmain, bGPdata *gpd, const bool lib_local)
diff --git a/source/blender/blenkernel/intern/group.c b/source/blender/blenkernel/intern/group.c
index 932f41ac4ba..fd6e9681e64 100644
--- a/source/blender/blenkernel/intern/group.c
+++ b/source/blender/blenkernel/intern/group.c
@@ -79,7 +79,7 @@ Group *BKE_group_add(Main *bmain, const char *name)
 {
 	Group *group;
 	
-	group = BKE_libblock_alloc(bmain, ID_GR, name);
+	group = BKE_libblock_alloc(bmain, ID_GR, name, 0);
 	id_us_min(&group->id);
 	id_us_ensure_real(&group->id);
 	group->layer = (1 << 20) - 1;
@@ -89,19 +89,32 @@ Group *BKE_group_add(Main *bmain, const char *name)
 	return group;
 }
 
-Group *BKE_group_copy(Main *bmain, const Group *group)
+/**
+ * Only copy internal data of Group ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_group_copy_data(Main *UNUSED(bmain), Group *group_dst, const Group *group_src, const int flag)
 {
-	Group *groupn;
-
-	groupn = BKE_libblock_copy(bmain, &group->id);
-	BLI_duplicatelist(&groupn->gobject, &group->gobject);
+	BLI_duplicatelist(&group_dst->gobject, &group_src->gobject);
 
 	/* Do not copy group's preview (same behavior as for objects). */
-	groupn->preview = NULL;
-
-	BKE_id_copy_ensure_local(bmain, &group->id, &groupn->id);
+	if ((flag & LIB_ID_COPY_NO_PREVIEW) == 0 && false) {  /* XXX TODO temp hack */
+		BKE_previewimg_id_copy(&group_dst->id, &group_src->id);
+	}
+	else {
+		group_dst->preview = NULL;
+	}
+}
 
-	return groupn;
+Group *BKE_group_copy(Main *bmain, const Group *group)
+{
+	Group *group_copy;
+	BKE_id_copy_ex(bmain, &group->id, (ID **)&group_copy, 0, false);
+	return group_copy;
 }
 
 void BKE_group_make_local(Main *bmain, Group *group, const bool lib_local)
diff --git a/source/blender/blenkernel/intern/icons.c b/source/blender/blenkernel/intern/icons.c
index bccf9307912..a98a1b13402 100644
--- a/source/blender/blenkernel/intern/icons.c
+++ b/source/blender/blenkernel/intern/icons.c
@@ -253,6 +253,8 @@ PreviewImage **BKE_previewimg_id_get_p(const ID *id)
 		ID_PRV_CASE(ID_GR, Group);
 		ID_PRV_CASE(ID_SCE, Scene);
 #undef ID_PRV_CASE
+		default:
+			break;
 	}
 
 	return NULL;
diff --git a/source/blender/blenkernel/intern/idprop.c b/source/blender/blenkernel/intern/idprop.c
index e98181be444..45b41fa01ed 100644
--- a/source/blender/blenkernel/intern/idprop.c
+++ b/source/blender/blenkernel/intern/idprop.c
@@ -90,7 +90,7 @@ IDProperty *IDP_NewIDPArray(const char *name)
 	return prop;
 }
 
-IDProperty *IDP_CopyIDPArray(const IDProperty *array)
+IDProperty *IDP_CopyIDPArray(const IDProperty *array, const int flag)
 {
 	/* don't use MEM_dupallocN because this may be part of an array */
 	IDProperty *narray, *tmp;
@@ -109,7 +109,7 @@ IDProperty *IDP_CopyIDPArray(const IDProperty *array)
 		 * then free it.  this makes for more maintainable
 		 * code than simply reimplementing the copy functions
 		 * in this loop.*/
-		tmp = IDP_CopyProperty(GETPROP(narray, i));
+		tmp = IDP_CopyProperty_ex(GETPROP(narray, i), flag);
 		memcpy(GETPROP(narray, i), tmp, sizeof(IDProperty));
 		MEM_freeN(tmp);
 	}
@@ -285,9 +285,9 @@ void IDP_FreeArray(IDProperty *prop)
 }
 
 
-static IDProperty *idp_generic_copy(const IDProperty *prop)
+static IDProperty *idp_generic_copy(const IDProperty *prop, const int UNUSED(flag))
 {
-	IDProperty *newp = MEM_callocN(sizeof(IDProperty), "IDProperty array dup");
+	IDProperty *newp = MEM_callocN(sizeof(IDProperty), __func__);
 
 	BLI_strncpy(newp->name, prop->name, MAX_IDPROP_NAME);
 	newp->type = prop->type;
@@ -298,9 +298,9 @@ static IDProperty *idp_generic_copy(const IDProperty *prop)
 	return newp;
 }
 
-static IDProperty *IDP_CopyArray(const IDProperty *prop)
+static IDProperty *IDP_CopyArray(const IDProperty *prop, const int flag)
 {
-	IDProperty *newp = idp_generic_copy(prop);
+	IDProperty *newp = idp_generic_copy(prop, flag);
 
 	if (prop->data.pointer) {
 		newp->data.pointer = MEM_dupallocN(prop->data.pointer);
@@ -310,7 +310,7 @@ static IDProperty *IDP_CopyArray(const IDProperty *prop)
 			int a;
 
 			for (a = 0; a < prop->len; a++)
-				array[a] = IDP_CopyProperty(array[a]);
+				array[a] = IDP_CopyProperty_ex(array[a], flag);
 		}
 	}
 	newp->len = prop->len;
@@ -363,12 +363,12 @@ IDProperty *IDP_NewString(const char *st, const char *name, int maxlen)
 	return prop;
 }
 
-static IDProperty *IDP_CopyString(const IDProperty *prop)
+static IDProperty *IDP_CopyString(const IDProperty *prop, const int flag)
 {
 	IDProperty *newp;
 
 	BLI_assert(prop->type == IDP_STRING);
-	newp = idp_generic_copy(prop);
+	newp = idp_generic_copy(prop, flag);
 
 	if (prop->data.pointer)
 		newp->data.pointer = MEM_dupallocN(prop->data.pointer);
@@ -442,15 +442,17 @@ void IDP_FreeString(IDProperty *prop)
 /** \name IDProperty ID API
  * \{ */
 
-static IDProperty *IDP_CopyID(const IDProperty *prop)
+static IDProperty *IDP_CopyID(const IDProperty *prop, const int flag)
 {
 	IDProperty *newp;
 
 	BLI_assert(prop->type == IDP_ID);
-	newp = idp_generic_copy(prop);
+	newp = idp_generic_copy(prop, flag);
 
 	newp->data.pointer = prop->data.pointer;
-	id_us_plus(IDP_Id(newp));
+	if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
+		id_us_plus(IDP_Id(newp));
+	}
 
 	return newp;
 }
@@ -467,16 +469,16 @@ static IDProperty *IDP_CopyID(const IDProperty *prop)
 /**
  * Checks if a property with the same name as prop exists, and if so replaces it.
  */
-static IDProperty *IDP_CopyGroup(const IDProperty *prop)
+static IDProperty *IDP_CopyGroup(const IDProperty *prop, const int flag)
 {
 	IDProperty *newp, *link;
 	
 	BLI_assert(prop->type == IDP_GROUP);
-	newp = idp_generic_copy(prop);
+	newp = idp_generic_copy(prop, flag);
 	newp->len = prop->len;
 
 	for (link = prop->data.group.first; link; link = link->next) {
-		BLI_addtail(&newp->data.group, IDP_CopyProperty(link));
+		BLI_addtail(&newp->data.group, IDP_CopyProperty_ex(link, flag));
 	}
 
 	return newp;
@@ -730,18 +732,23 @@ static void IDP_FreeGroup(IDProperty *prop, const bool do_id_user)
 
 /** \name IDProperty Main API
  * \{ */
-IDProperty *IDP_CopyProperty(const IDProperty *prop)
+IDProperty *IDP_CopyProperty_ex(const IDProperty *prop, const int flag)
 {
 	switch (prop->type) {
-		case IDP_GROUP: return IDP_CopyGroup(prop);
-		case IDP_STRING: return IDP_CopyString(prop);
-		case IDP_ID: return IDP_CopyID(prop);
-		case IDP_ARRAY: return IDP_CopyArray(prop);
-		case IDP_IDPARRAY: return IDP_CopyIDPArray(prop);
-		default: return idp_generic_copy(prop);
+		case IDP_GROUP: return IDP_CopyGroup(prop, flag);
+		case IDP_STRING: return IDP_CopyString(prop, flag);
+		case IDP_ID: return IDP_CopyID(prop, flag);
+		case IDP_ARRAY: return IDP_CopyArray(prop, flag);
+		case IDP_IDPARRAY: return IDP_CopyIDPArray(prop, flag);
+		default: return idp_generic_copy(prop, flag);
 	}
 }
 
+IDProperty *IDP_CopyProperty(const IDProperty *prop)
+{
+	return IDP_CopyProperty_ex(prop, 0);
+}
+
 /* Updates ID pointers after an object has been copied */
 /* TODO Nuke this once its only user has been correctly converted to use generic ID management from BKE_library! */
 void IDP_RelinkProperty(struct IDProperty *prop)
diff --git a/source/blender/blenkernel/intern/image.c b/source/blender/blenkernel/intern/image.c
index abe08def197..90f2fe3d547 100644
--- a/source/blender/blenkernel/intern/image.c
+++ b/source/blender/blenkernel/intern/image.c
@@ -303,8 +303,11 @@ static void image_free_anims(Image *ima)
  * Simply free the image data from memory,
  * on display the image can load again (except for render buffers).
  */
-void BKE_image_free_buffers(Image *ima)
+void BKE_image_free_buffers_ex(Image *ima, bool do_lock)
 {
+	if (do_lock) {
+		BLI_spin_lock(&image_spin);
+	}
 	image_free_cached_frames(ima);
 
 	image_free_anims(ima);
@@ -323,6 +326,15 @@ void BKE_image_free_buffers(Image *ima)
 	}
 
 	ima->ok = IMA_OK;
+
+	if (do_lock) {
+		BLI_spin_unlock(&image_spin);
+	}
+}
+
+void BKE_image_free_buffers(Image *ima)
+{
+	BKE_image_free_buffers_ex(ima, false);
 }
 
 /** Free (or release) any data used by this image (does not free the image itself). */
@@ -382,7 +394,7 @@ static Image *image_alloc(Main *bmain, const char *name, short source, short typ
 {
 	Image *ima;
 
-	ima = BKE_libblock_alloc(bmain, ID_IM, name);
+	ima = BKE_libblock_alloc(bmain, ID_IM, name, 0);
 	if (ima) {
 		image_init(ima, source, type);
 	}
@@ -433,39 +445,53 @@ static void copy_image_packedfiles(ListBase *lb_dst, const ListBase *lb_src)
 	}
 }
 
-/* empty image block, of similar type and filename */
-Image *BKE_image_copy(Main *bmain, const Image *ima)
+/**
+ * Only copy internal data of Image ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_image_copy_data(Main *UNUSED(bmain), Image *ima_dst, const Image *ima_src, const int flag)
 {
-	Image *nima = image_alloc(bmain, ima->id.name + 2, ima->source, ima->type);
-
-	BLI_strncpy(nima->name, ima->name, sizeof(ima->name));
-
-	nima->flag = ima->flag;
-	nima->tpageflag = ima->tpageflag;
-
-	nima->gen_x = ima->gen_x;
-	nima->gen_y = ima->gen_y;
-	nima->gen_type = ima->gen_type;
-	copy_v4_v4(nima->gen_color, ima->gen_color);
+	BKE_color_managed_colorspace_settings_copy(&ima_dst->colorspace_settings, &ima_src->colorspace_settings);
 
-	nima->animspeed = ima->animspeed;
+	copy_image_packedfiles(&ima_dst->packedfiles, &ima_src->packedfiles);
 
-	nima->aspx = ima->aspx;
-	nima->aspy = ima->aspy;
+	ima_dst->stereo3d_format = MEM_dupallocN(ima_src->stereo3d_format);
+	BLI_duplicatelist(&ima_dst->views, &ima_src->views);
 
-	BKE_color_managed_colorspace_settings_copy(&nima->colorspace_settings, &ima->colorspace_settings);
-
-	copy_image_packedfiles(&nima->packedfiles, &ima->packedfiles);
+	/* Cleanup stuff that cannot be copied. */
+	ima_dst->cache = NULL;
+	ima_dst->rr = NULL;
+	for (int i = 0; i < IMA_MAX_RENDER_SLOT; i++) {
+		ima_dst->renders[i] = NULL;
+	}
 
-	/* nima->stere3d_format is already allocated by image_alloc... */
-	*nima->stereo3d_format = *ima->stereo3d_format;
-	BLI_duplicatelist(&nima->views, &ima->views);
+	BLI_listbase_clear(&ima_dst->anims);
 
-	BKE_previewimg_id_copy(&nima->id, &ima->id);
+	ima_dst->totbind = 0;
+	for (int i = 0; i < TEXTARGET_COUNT; i++) {
+		ima_dst->bindcode[i] = 0;
+		ima_dst->gputexture[i] = NULL;
+	}
+	ima_dst->repbind = NULL;
 
-	BKE_id_copy_ensure_local(bmain, &ima->id, &nima->id);
+	if ((flag & LIB_ID_COPY_NO_PREVIEW) == 0) {
+		BKE_previewimg_id_copy(&ima_dst->id, &ima_src->id);
+	}
+	else {
+		ima_dst->preview = NULL;
+	}
+}
 
-	return nima;
+/* empty image block, of similar type and filename */
+Image *BKE_image_copy(Main *bmain, const Image *ima)
+{
+	Image *ima_copy;
+	BKE_id_copy_ex(bmain, &ima->id, (ID **)&ima_copy, 0, false);
+	return ima_copy;
 }
 
 void BKE_image_make_local(Main *bmain, Image *ima, const bool lib_local)
@@ -1177,7 +1203,6 @@ bool BKE_imtype_is_movie(const char imtype)
 	switch (imtype) {
 		case R_IMF_IMTYPE_AVIRAW:
 		case R_IMF_IMTYPE_AVIJPEG:
-		case R_IMF_IMTYPE_QUICKTIME:
 		case R_IMF_IMTYPE_FFMPEG:
 		case R_IMF_IMTYPE_H264:
 		case R_IMF_IMTYPE_THEORA:
@@ -1249,7 +1274,6 @@ char BKE_imtype_valid_channels(const char imtype, bool write_file)
 		case R_IMF_IMTYPE_MULTILAYER:
 		case R_IMF_IMTYPE_DDS:
 		case R_IMF_IMTYPE_JP2:
-		case R_IMF_IMTYPE_QUICKTIME:
 		case R_IMF_IMTYPE_DPX:
 			chan_flag |= IMA_CHAN_FLAG_ALPHA;
 			break;
@@ -1312,7 +1336,6 @@ char BKE_imtype_from_arg(const char *imtype_arg)
 	else if (STREQ(imtype_arg, "AVIRAW")) return R_IMF_IMTYPE_AVIRAW;
 	else if (STREQ(imtype_arg, "AVIJPEG")) return R_IMF_IMTYPE_AVIJPEG;
 	else if (STREQ(imtype_arg, "PNG")) return R_IMF_IMTYPE_PNG;
-	else if (STREQ(imtype_arg, "QUICKTIME")) return R_IMF_IMTYPE_QUICKTIME;
 	else if (STREQ(imtype_arg, "BMP")) return R_IMF_IMTYPE_BMP;
 #ifdef WITH_HDR
 	else if (STREQ(imtype_arg, "HDR")) return R_IMF_IMTYPE_RADHDR;
@@ -1423,7 +1446,7 @@ static bool do_add_image_extension(char *string, const char imtype, const ImageF
 		}
 	}
 #endif
-	else { //   R_IMF_IMTYPE_AVIRAW, R_IMF_IMTYPE_AVIJPEG, R_IMF_IMTYPE_JPEG90, R_IMF_IMTYPE_QUICKTIME etc
+	else { //   R_IMF_IMTYPE_AVIRAW, R_IMF_IMTYPE_AVIJPEG, R_IMF_IMTYPE_JPEG90 etc
 		if (!(BLI_testextensie_n(string, extension_test = ".jpg", ".jpeg", NULL)))
 			extension = extension_test;
 	}
@@ -1431,8 +1454,7 @@ static bool do_add_image_extension(char *string, const char imtype, const ImageF
 	if (extension) {
 		/* prefer this in many cases to avoid .png.tga, but in certain cases it breaks */
 		/* remove any other known image extension */
-		if (BLI_testextensie_array(string, imb_ext_image) ||
-		    (G.have_quicktime && BLI_testextensie_array(string, imb_ext_image_qt)))
+		if (BLI_testextensie_array(string, imb_ext_image))
 		{
 			return BLI_replace_extension(string, FILE_MAX, extension);
 		}
@@ -1709,7 +1731,7 @@ static void stampdata(Scene *scene, Object *camera, StampData *stamp_data, int d
 	}
 
 	{
-		Render *re = RE_GetRender(scene->id.name);
+		Render *re = RE_GetSceneRender(scene);
 		RenderStats *stats = re ? RE_GetStats(re) : NULL;
 
 		if (stats && (scene->r.stamp & R_STAMP_RENDERTIME)) {
@@ -2903,7 +2925,7 @@ RenderResult *BKE_image_acquire_renderresult(Scene *scene, Image *ima)
 	}
 	else if (ima->type == IMA_TYPE_R_RESULT) {
 		if (ima->render_slot == ima->last_render_slot)
-			rr = RE_AcquireResultRead(RE_GetRender(scene->id.name));
+			rr = RE_AcquireResultRead(RE_GetSceneRender(scene));
 		else
 			rr = ima->renders[ima->render_slot];
 
@@ -2921,7 +2943,7 @@ void BKE_image_release_renderresult(Scene *scene, Image *ima)
 	}
 	else if (ima->type == IMA_TYPE_R_RESULT) {
 		if (ima->render_slot == ima->last_render_slot)
-			RE_ReleaseResult(RE_GetRender(scene->id.name));
+			RE_ReleaseResult(RE_GetSceneRender(scene));
 	}
 }
 
@@ -2941,7 +2963,7 @@ void BKE_image_backup_render(Scene *scene, Image *ima, bool free_current_slot)
 {
 	/* called right before rendering, ima->renders contains render
 	 * result pointers for everything but the current render */
-	Render *re = RE_GetRender(scene->id.name);
+	Render *re = RE_GetSceneRender(scene);
 	int slot = ima->render_slot, last = ima->last_render_slot;
 
 	if (slot != last) {
@@ -3666,7 +3688,7 @@ static ImBuf *image_get_render_result(Image *ima, ImageUser *iuser, void **r_loc
 	if (!r_lock)
 		return NULL;
 
-	re = RE_GetRender(iuser->scene->id.name);
+	re = RE_GetSceneRender(iuser->scene);
 
 	channels = 4;
 	layer = iuser->layer;
diff --git a/source/blender/blenkernel/intern/image_gen.c b/source/blender/blenkernel/intern/image_gen.c
index 2c8399adece..1f1f4c9d341 100644
--- a/source/blender/blenkernel/intern/image_gen.c
+++ b/source/blender/blenkernel/intern/image_gen.c
@@ -132,7 +132,7 @@ static void image_buf_fill_checker_slice(unsigned char *rect,
 	float hsv[3] = {0.0f, 0.9f, 0.9f};
 	float rgb[3];
 
-	float dark_linear_color, bright_linear_color;
+	float dark_linear_color = 0.0f, bright_linear_color = 0.0f;
 	if (rect_float != NULL) {
 		dark_linear_color = srgb_to_linearrgb(0.25f);
 		bright_linear_color = srgb_to_linearrgb(0.58f);
diff --git a/source/blender/blenkernel/intern/key.c b/source/blender/blenkernel/intern/key.c
index 98b251294ae..fd42556067e 100644
--- a/source/blender/blenkernel/intern/key.c
+++ b/source/blender/blenkernel/intern/key.c
@@ -107,7 +107,7 @@ Key *BKE_key_add(ID *id)    /* common function */
 	Key *key;
 	char *el;
 	
-	key = BKE_libblock_alloc(G.main, ID_KE, "Key");
+	key = BKE_libblock_alloc(G.main, ID_KE, "Key", 0);
 	
 	key->type = KEY_NORMAL;
 	key->from = id;
@@ -146,36 +146,48 @@ Key *BKE_key_add(ID *id)    /* common function */
 			key->elemsize = 16;
 
 			break;
+
+		default:
+			break;
 	}
 	
 	return key;
 }
 
-Key *BKE_key_copy(Main *bmain, const Key *key)
+/**
+ * Only copy internal data of ShapeKey ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_key_copy_data(Main *UNUSED(bmain), Key *key_dst, const Key *key_src, const int UNUSED(flag))
 {
-	Key *keyn;
-	KeyBlock *kbn, *kb;
-	
-	keyn = BKE_libblock_copy(bmain, &key->id);
-	
-	BLI_duplicatelist(&keyn->block, &key->block);
-	
-	kb = key->block.first;
-	kbn = keyn->block.first;
-	while (kbn) {
-		
-		if (kbn->data) kbn->data = MEM_dupallocN(kbn->data);
-		if (kb == key->refkey) keyn->refkey = kbn;
-		
-		kbn = kbn->next;
-		kb = kb->next;
-	}
+	BLI_duplicatelist(&key_dst->block, &key_src->block);
 
-	BKE_id_copy_ensure_local(bmain, &key->id, &keyn->id);
+	KeyBlock *kb_dst, *kb_src;
+	for (kb_src = key_src->block.first, kb_dst = key_dst->block.first;
+	     kb_dst;
+	     kb_src = kb_src->next, kb_dst = kb_dst->next)
+	{
+		if (kb_dst->data) {
+			kb_dst->data = MEM_dupallocN(kb_dst->data);
+		}
+		if (kb_src == key_src->refkey) {
+			key_dst->refkey = kb_dst;
+		}
+	}
+}
 
-	return keyn;
+Key *BKE_key_copy(Main *bmain, const Key *key)
+{
+	Key *key_copy;
+	BKE_id_copy_ex(bmain, &key->id, (ID **)&key_copy, 0, false);
+	return key_copy;
 }
 
+/* XXX TODO get rid of this! */
 Key *BKE_key_copy_nolib(Key *key)
 {
 	Key *keyn;
@@ -1397,6 +1409,8 @@ Key **BKE_key_from_id_p(ID *id)
 			Lattice *lt = (Lattice *)id;
 			return &lt->key;
 		}
+		default:
+			break;
 	}
 
 	return NULL;
diff --git a/source/blender/blenkernel/intern/lamp.c b/source/blender/blenkernel/intern/lamp.c
index 2242ba379fb..e8ef346927e 100644
--- a/source/blender/blenkernel/intern/lamp.c
+++ b/source/blender/blenkernel/intern/lamp.c
@@ -109,42 +109,60 @@ Lamp *BKE_lamp_add(Main *bmain, const char *name)
 {
 	Lamp *la;
 
-	la =  BKE_libblock_alloc(bmain, ID_LA, name);
+	la =  BKE_libblock_alloc(bmain, ID_LA, name, 0);
 
 	BKE_lamp_init(la);
 
 	return la;
 }
 
-Lamp *BKE_lamp_copy(Main *bmain, const Lamp *la)
+/**
+ * Only copy internal data of Lamp ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_lamp_copy_data(Main *bmain, Lamp *la_dst, const Lamp *la_src, const int flag)
 {
-	Lamp *lan;
-	int a;
-	
-	lan = BKE_libblock_copy(bmain, &la->id);
-
-	for (a = 0; a < MAX_MTEX; a++) {
-		if (lan->mtex[a]) {
-			lan->mtex[a] = MEM_mallocN(sizeof(MTex), "copylamptex");
-			memcpy(lan->mtex[a], la->mtex[a], sizeof(MTex));
-			id_us_plus((ID *)lan->mtex[a]->tex);
+	for (int a = 0; a < MAX_MTEX; a++) {
+		if (la_dst->mtex[a]) {
+			la_dst->mtex[a] = MEM_mallocN(sizeof(*la_dst->mtex[a]), __func__);
+			*la_dst->mtex[a] = *la_src->mtex[a];
 		}
 	}
-	
-	lan->curfalloff = curvemapping_copy(la->curfalloff);
 
-	if (la->nodetree)
-		lan->nodetree = ntreeCopyTree(bmain, la->nodetree);
+	la_dst->curfalloff = curvemapping_copy(la_src->curfalloff);
 
-	BKE_previewimg_id_copy(&lan->id, &la->id);
+	if (la_src->nodetree) {
+		BKE_id_copy_ex(bmain, (ID *)la_src->nodetree, (ID **)&la_dst->nodetree, flag, false);
+	}
 
-	BKE_id_copy_ensure_local(bmain, &la->id, &lan->id);
+	if ((flag & LIB_ID_COPY_NO_PREVIEW) == 0) {
+		BKE_previewimg_id_copy(&la_dst->id, &la_src->id);
+	}
+	else {
+		la_dst->preview = NULL;
+	}
+}
 
-	return lan;
+Lamp *BKE_lamp_copy(Main *bmain, const Lamp *la)
+{
+	Lamp *la_copy;
+	BKE_id_copy_ex(bmain, &la->id, (ID **)&la_copy, 0, false);
+	return la_copy;
 }
 
 Lamp *localize_lamp(Lamp *la)
 {
+	/* TODO replace with something like
+	 * 	Lamp *la_copy;
+	 * 	BKE_id_copy_ex(bmain, &la->id, (ID **)&la_copy, LIB_ID_COPY_NO_MAIN | LIB_ID_COPY_NO_PREVIEW | LIB_ID_COPY_NO_USER_REFCOUNT, false);
+	 * 	return la_copy;
+	 *
+	 * ... Once f*** nodes are fully converted to that too :( */
+
 	Lamp *lan;
 	int a;
 	
diff --git a/source/blender/blenkernel/intern/lattice.c b/source/blender/blenkernel/intern/lattice.c
index c9d7dddf25a..ea4c3f380ff 100644
--- a/source/blender/blenkernel/intern/lattice.c
+++ b/source/blender/blenkernel/intern/lattice.c
@@ -270,39 +270,46 @@ Lattice *BKE_lattice_add(Main *bmain, const char *name)
 {
 	Lattice *lt;
 
-	lt = BKE_libblock_alloc(bmain, ID_LT, name);
+	lt = BKE_libblock_alloc(bmain, ID_LT, name, 0);
 
 	BKE_lattice_init(lt);
 
 	return lt;
 }
 
-Lattice *BKE_lattice_copy(Main *bmain, const Lattice *lt)
+/**
+ * Only copy internal data of Lattice ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_lattice_copy_data(Main *bmain, Lattice *lt_dst, const Lattice *lt_src, const int flag)
 {
-	Lattice *ltn;
-
-	ltn = BKE_libblock_copy(bmain, &lt->id);
-	ltn->def = MEM_dupallocN(lt->def);
+	lt_dst->def = MEM_dupallocN(lt_src->def);
 
-	if (lt->key) {
-		ltn->key = BKE_key_copy(bmain, ltn->key);
-		ltn->key->from = (ID *)ltn;
-	}
-	
-	if (lt->dvert) {
-		int tot = lt->pntsu * lt->pntsv * lt->pntsw;
-		ltn->dvert = MEM_mallocN(sizeof(MDeformVert) * tot, "Lattice MDeformVert");
-		BKE_defvert_array_copy(ltn->dvert, lt->dvert, tot);
+	if (lt_src->key) {
+		BKE_id_copy_ex(bmain, &lt_src->key->id, (ID **)&lt_dst->key, flag, false);
 	}
 
-	ltn->editlatt = NULL;
+	if (lt_src->dvert) {
+		int tot = lt_src->pntsu * lt_src->pntsv * lt_src->pntsw;
+		lt_dst->dvert = MEM_mallocN(sizeof(MDeformVert) * tot, "Lattice MDeformVert");
+		BKE_defvert_array_copy(lt_dst->dvert, lt_src->dvert, tot);
+	}
 
-	BKE_id_copy_ensure_local(bmain, &lt->id, &ltn->id);
+	lt_dst->editlatt = NULL;
+}
 
-	return ltn;
+Lattice *BKE_lattice_copy(Main *bmain, const Lattice *lt)
+{
+	Lattice *lt_copy;
+	BKE_id_copy_ex(bmain, &lt->id, (ID **)&lt_copy, 0, false);
+	return lt_copy;
 }
 
-/** Free (or release) any data used by this lattice (does not free the lattice itself). */
+	/** Free (or release) any data used by this lattice (does not free the lattice itself). */
 void BKE_lattice_free(Lattice *lt)
 {
 	BKE_animdata_free(&lt->id, false);
diff --git a/source/blender/blenkernel/intern/library.c b/source/blender/blenkernel/intern/library.c
index 2ea7342ff34..d5dfc63b317 100644
--- a/source/blender/blenkernel/intern/library.c
+++ b/source/blender/blenkernel/intern/library.c
@@ -383,7 +383,6 @@ bool id_make_local(Main *bmain, ID *id, const bool test, const bool lib_local)
 
 	switch ((ID_Type)GS(id->name)) {
 		case ID_SCE:
-			/* Partially implemented (has no copy...). */
 			if (!test) BKE_scene_make_local(bmain, (Scene *)id, lib_local);
 			return true;
 		case ID_OB:
@@ -423,14 +422,12 @@ bool id_make_local(Main *bmain, ID *id, const bool test, const bool lib_local)
 			if (!test) BKE_world_make_local(bmain, (World *)id, lib_local);
 			return true;
 		case ID_VF:
-			/* Partially implemented (has no copy...). */
 			if (!test) BKE_vfont_make_local(bmain, (VFont *)id, lib_local);
 			return true;
 		case ID_TXT:
 			if (!test) BKE_text_make_local(bmain, (Text *)id, lib_local);
 			return true;
 		case ID_SO:
-			/* Partially implemented (has no copy...). */
 			if (!test) BKE_sound_make_local(bmain, (bSound *)id, lib_local);
 			return true;
 		case ID_GR:
@@ -484,114 +481,189 @@ bool id_make_local(Main *bmain, ID *id, const bool test, const bool lib_local)
 	return false;
 }
 
+struct IDCopyLibManagementData {
+	const ID *id_src;
+	ID *id_dst;
+	int flag;
+};
+
+/* Increases usercount as required, and remap self ID pointers. */
+static int id_copy_libmanagement_cb(void *user_data, ID *UNUSED(id_self), ID **id_pointer, int cb_flag)
+{
+	struct IDCopyLibManagementData *data = user_data;
+	ID *id = *id_pointer;
+
+	/* Remap self-references to new copied ID. */
+	if (id == data->id_src) {
+		/* We cannot use id_self here, it is not *always* id_dst (thanks to $£!+@#&/? nodetrees). */
+		id = *id_pointer = data->id_dst;
+	}
+
+	/* Increase used IDs refcount if needed and required. */
+	if ((data->flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0 && (cb_flag & IDWALK_CB_USER)) {
+		id_us_plus(id);
+	}
+
+	return IDWALK_RET_NOP;
+}
+
 /**
- * Invokes the appropriate copy method for the block and returns the result in
- * newid, unless test. Returns true if the block can be copied.
+ * Generic entry point for copying a datablock (new API).
+ *
+ * \note Copy is only affecting given data-block (no ID used by copied one will be affected, besides usercount).
+ *       There is only one exception, if LIB_ID_COPY_ACTIONS is defined, actions used by animdata will be duplicated.
+ *
+ * \note Usercount of new copy is always set to 1.
+ *
+ * \param bmain Main database, may be NULL only if LIB_ID_COPY_NO_MAIN is specified.
+ * \param id Source datablock.
+ * \param r_newid Pointer to new (copied) ID pointer.
+ * \param flag Set of copy options, see DNA_ID.h enum for details (leave to zero for default, full copy).
+ * \param test If set, do not do any copy, just test whether copy is supported.
+ * \return False when copying that ID type is not supported, true otherwise.
  */
-bool id_copy(Main *bmain, const ID *id, ID **newid, bool test)
+/* XXX TODO remove test thing, *all* IDs should be copyable that way! */
+bool BKE_id_copy_ex(Main *bmain, const ID *id, ID **r_newid, const int flag, const bool test)
 {
-	if (!test) {
-		*newid = NULL;
+#define LIB_ID_TYPES_NOCOPY ID_LI, ID_SCR, ID_WM,  /* Not supported */ \
+                            ID_IP  /* Deprecated */
+
+	BLI_assert(test || (r_newid != NULL));
+	if (r_newid != NULL) {
+		*r_newid = NULL;
+	}
+	if (id == NULL) {
+		return false;
+	}
+
+	if (ELEM(GS(id->name), LIB_ID_TYPES_NOCOPY)) {
+		return false;
+	}
+	else if (test) {
+		return true;
 	}
 
-	/* conventions:
-	 * - make shallow copy, only this ID block
-	 * - id.us of the new ID is set to 1 */
+	BKE_libblock_copy_ex(bmain, id, r_newid, flag);
+
 	switch ((ID_Type)GS(id->name)) {
+		case ID_SCE:
+			BKE_scene_copy_data(bmain, (Scene *)*r_newid, (Scene *)id, flag);
+			break;
 		case ID_OB:
-			if (!test) *newid = (ID *)BKE_object_copy(bmain, (Object *)id);
-			return true;
+			BKE_object_copy_data(bmain, (Object *)*r_newid, (Object *)id, flag);
+			break;
 		case ID_ME:
-			if (!test) *newid = (ID *)BKE_mesh_copy(bmain, (Mesh *)id);
-			return true;
+			BKE_mesh_copy_data(bmain, (Mesh *)*r_newid, (Mesh *)id, flag);
+			break;
 		case ID_CU:
-			if (!test) *newid = (ID *)BKE_curve_copy(bmain, (Curve *)id);
-			return true;
+			BKE_curve_copy_data(bmain, (Curve *)*r_newid, (Curve *)id, flag);
+			break;
 		case ID_MB:
-			if (!test) *newid = (ID *)BKE_mball_copy(bmain, (MetaBall *)id);
-			return true;
+			BKE_mball_copy_data(bmain, (MetaBall *)*r_newid, (MetaBall *)id, flag);
+			break;
 		case ID_MA:
-			if (!test) *newid = (ID *)BKE_material_copy(bmain, (Material *)id);
-			return true;
+			BKE_material_copy_data(bmain, (Material *)*r_newid, (Material *)id, flag);
+			break;
 		case ID_TE:
-			if (!test) *newid = (ID *)BKE_texture_copy(bmain, (Tex *)id);
-			return true;
+			BKE_texture_copy_data(bmain, (Tex *)*r_newid, (Tex *)id, flag);
+			break;
 		case ID_IM:
-			if (!test) *newid = (ID *)BKE_image_copy(bmain, (Image *)id);
-			return true;
+			BKE_image_copy_data(bmain, (Image *)*r_newid, (Image *)id, flag);
+			break;
 		case ID_LT:
-			if (!test) *newid = (ID *)BKE_lattice_copy(bmain, (Lattice *)id);
-			return true;
+			BKE_lattice_copy_data(bmain, (Lattice *)*r_newid, (Lattice *)id, flag);
+			break;
 		case ID_LA:
-			if (!test) *newid = (ID *)BKE_lamp_copy(bmain, (Lamp *)id);
-			return true;
+			BKE_lamp_copy_data(bmain, (Lamp *)*r_newid, (Lamp *)id, flag);
+			break;
 		case ID_SPK:
-			if (!test) *newid = (ID *)BKE_speaker_copy(bmain, (Speaker *)id);
-			return true;
+			BKE_speaker_copy_data(bmain, (Speaker *)*r_newid, (Speaker *)id, flag);
+			break;
 		case ID_CA:
-			if (!test) *newid = (ID *)BKE_camera_copy(bmain, (Camera *)id);
-			return true;
+			BKE_camera_copy_data(bmain, (Camera *)*r_newid, (Camera *)id, flag);
+			break;
 		case ID_KE:
-			if (!test) *newid = (ID *)BKE_key_copy(bmain, (Key *)id);
-			return true;
+			BKE_key_copy_data(bmain, (Key *)*r_newid, (Key *)id, flag);
+			break;
 		case ID_WO:
-			if (!test) *newid = (ID *)BKE_world_copy(bmain, (World *)id);
-			return true;
+			BKE_world_copy_data(bmain, (World *)*r_newid, (World *)id, flag);
+			break;
 		case ID_TXT:
-			if (!test) *newid = (ID *)BKE_text_copy(bmain, (Text *)id);
-			return true;
+			BKE_text_copy_data(bmain, (Text *)*r_newid, (Text *)id, flag);
+			break;
 		case ID_GR:
-			if (!test) *newid = (ID *)BKE_group_copy(bmain, (Group *)id);
-			return true;
+			BKE_group_copy_data(bmain, (Group *)*r_newid, (Group *)id, flag);
+			break;
 		case ID_AR:
-			if (!test) *newid = (ID *)BKE_armature_copy(bmain, (bArmature *)id);
-			return true;
+			BKE_armature_copy_data(bmain, (bArmature *)*r_newid, (bArmature *)id, flag);
+			break;
 		case ID_AC:
-			if (!test) *newid = (ID *)BKE_action_copy(bmain, (bAction *)id);
-			return true;
+			BKE_action_copy_data(bmain, (bAction *)*r_newid, (bAction *)id, flag);
+			break;
 		case ID_NT:
-			if (!test) *newid = (ID *)ntreeCopyTree(bmain, (bNodeTree *)id);
-			return true;
+			BKE_node_tree_copy_data(bmain, (bNodeTree *)*r_newid, (bNodeTree *)id, flag);
+			break;
 		case ID_BR:
-			if (!test) *newid = (ID *)BKE_brush_copy(bmain, (Brush *)id);
-			return true;
+			BKE_brush_copy_data(bmain, (Brush *)*r_newid, (Brush *)id, flag);
+			break;
 		case ID_PA:
-			if (!test) *newid = (ID *)BKE_particlesettings_copy(bmain, (ParticleSettings *)id);
-			return true;
+			BKE_particlesettings_copy_data(bmain, (ParticleSettings *)*r_newid, (ParticleSettings *)id, flag);
+			break;
 		case ID_GD:
-			if (!test) *newid = (ID *)BKE_gpencil_data_duplicate(bmain, (bGPdata *)id, false);
-			return true;
+			BKE_gpencil_copy_data(bmain, (bGPdata *)*r_newid, (bGPdata *)id, flag);
+			break;
 		case ID_MC:
-			if (!test) *newid = (ID *)BKE_movieclip_copy(bmain, (MovieClip *)id);
-			return true;
+			BKE_movieclip_copy_data(bmain, (MovieClip *)*r_newid, (MovieClip *)id, flag);
+			break;
 		case ID_MSK:
-			if (!test) *newid = (ID *)BKE_mask_copy(bmain, (Mask *)id);
-			return true;
+			BKE_mask_copy_data(bmain, (Mask *)*r_newid, (Mask *)id, flag);
+			break;
 		case ID_LS:
-			if (!test) *newid = (ID *)BKE_linestyle_copy(bmain, (FreestyleLineStyle *)id);
-			return true;
+			BKE_linestyle_copy_data(bmain, (FreestyleLineStyle *)*r_newid, (FreestyleLineStyle *)id, flag);
+			break;
 		case ID_PAL:
-			if (!test) *newid = (ID *)BKE_palette_copy(bmain, (Palette *)id);
-			return true;
+			BKE_palette_copy_data(bmain, (Palette *)*r_newid, (Palette *)id, flag);
+			break;
 		case ID_PC:
-			if (!test) *newid = (ID *)BKE_paint_curve_copy(bmain, (PaintCurve *)id);
-			return true;
+			BKE_paint_curve_copy_data(bmain, (PaintCurve *)*r_newid, (PaintCurve *)id, flag);
+			break;
 		case ID_CF:
-			if (!test) *newid = (ID *)BKE_cachefile_copy(bmain, (CacheFile *)id);
-			return true;
-		case ID_SCE:
+			BKE_cachefile_copy_data(bmain, (CacheFile *)*r_newid, (CacheFile *)id, flag);
+			break;
+		case ID_SO:
+			BKE_sound_copy_data(bmain, (bSound *)*r_newid, (bSound *)id, flag);
+			break;
+		case ID_VF:
+			BKE_vfont_copy_data(bmain, (VFont *)*r_newid, (VFont *)id, flag);
+			break;
 		case ID_LI:
 		case ID_SCR:
 		case ID_WM:
-			return false;  /* can't be copied from here */
-		case ID_VF:
-		case ID_SO:
-			return false;  /* not implemented */
 		case ID_IP:
-			return false;  /* deprecated */
+			BLI_assert(0);  /* Should have been rejected at start of function! */
+			break;
 	}
-	
-	return false;
+
+	/* Update ID refcount, remap pointers to self in new ID. */
+	struct IDCopyLibManagementData data = {.id_src = id, .id_dst = *r_newid, .flag = flag};
+	BKE_library_foreach_ID_link(bmain, *r_newid, id_copy_libmanagement_cb, &data, IDWALK_NOP);
+
+	/* Do not make new copy local in case we are copying outside of main...
+	 * XXX TODO: is this behavior OK, or should we need own flag to control that? */
+	if ((flag & LIB_ID_CREATE_NO_MAIN) == 0) {
+		BKE_id_copy_ensure_local(bmain, id, *r_newid);
+	}
+
+	return true;
+}
+
+/**
+ * Invokes the appropriate copy method for the block and returns the result in
+ * newid, unless test. Returns true if the block can be copied.
+ */
+bool id_copy(Main *bmain, const ID *id, ID **newid, bool test)
+{
+	return BKE_id_copy_ex(bmain, id, newid, 0, test);
 }
 
 /** Does *not* set ID->newid pointer. */
@@ -623,6 +695,101 @@ bool id_single_user(bContext *C, ID *id, PointerRNA *ptr, PropertyRNA *prop)
 	return false;
 }
 
+static int libblock_management_us_plus(void *UNUSED(user_data), ID *UNUSED(id_self), ID **id_pointer, int cb_flag)
+{
+	if (cb_flag & IDWALK_CB_USER) {
+		id_us_plus(*id_pointer);
+	}
+	if (cb_flag & IDWALK_CB_USER_ONE) {
+		id_us_ensure_real(*id_pointer);
+	}
+
+	return IDWALK_RET_NOP;
+}
+
+static int libblock_management_us_min(void *UNUSED(user_data), ID *UNUSED(id_self), ID **id_pointer, int cb_flag)
+{
+	if (cb_flag & IDWALK_CB_USER) {
+		id_us_min(*id_pointer);
+	}
+	/* We can do nothing in IDWALK_CB_USER_ONE case! */
+
+	return IDWALK_RET_NOP;
+}
+
+/** Add a 'NO_MAIN' datablock to given main (also sets usercounts of its IDs if needed). */
+void BKE_libblock_management_main_add(Main *bmain, void *idv)
+{
+	ID *id = idv;
+
+	BLI_assert(bmain != NULL);
+	if ((id->tag & LIB_TAG_NO_MAIN) == 0) {
+		return;
+	}
+
+	if ((id->tag & LIB_TAG_NOT_ALLOCATED) != 0) {
+		/* We cannot add non-allocated ID to Main! */
+		return;
+	}
+
+	/* We cannot allow non-userrefcounting IDs in Main database! */
+	if ((id->tag & LIB_TAG_NO_USER_REFCOUNT) != 0) {
+		BKE_library_foreach_ID_link(bmain, id, libblock_management_us_plus, NULL, IDWALK_NOP);
+	}
+
+	ListBase *lb = which_libbase(bmain, GS(id->name));
+	BKE_main_lock(bmain);
+	BLI_addtail(lb, id);
+	new_id(lb, id, NULL);
+	/* alphabetic insertion: is in new_id */
+	id->tag &= ~(LIB_TAG_NO_MAIN | LIB_TAG_NO_USER_REFCOUNT);
+	BKE_main_unlock(bmain);
+}
+
+/** Remove a datablock from given main (set it to 'NO_MAIN' status). */
+void BKE_libblock_management_main_remove(Main *bmain, void *idv)
+{
+	ID *id = idv;
+
+	BLI_assert(bmain != NULL);
+	if ((id->tag & LIB_TAG_NO_MAIN) != 0) {
+		return;
+	}
+
+	/* For now, allow userrefcounting IDs to get out of Main - can be handy in some cases... */
+
+	ListBase *lb = which_libbase(bmain, GS(id->name));
+	BKE_main_lock(bmain);
+	BLI_remlink(lb, id);
+	id->tag |= LIB_TAG_NO_MAIN;
+	BKE_main_unlock(bmain);
+}
+
+void BKE_libblock_management_usercounts_set(Main *bmain, void *idv)
+{
+	ID *id = idv;
+
+	if ((id->tag & LIB_TAG_NO_USER_REFCOUNT) == 0) {
+		return;
+	}
+
+	BKE_library_foreach_ID_link(bmain, id, libblock_management_us_plus, NULL, IDWALK_NOP);
+	id->tag &= ~LIB_TAG_NO_USER_REFCOUNT;
+}
+
+void BKE_libblock_management_usercounts_clear(Main *bmain, void *idv)
+{
+	ID *id = idv;
+
+	/* We do not allow IDs in Main database to not be userrefcounting. */
+	if ((id->tag & LIB_TAG_NO_USER_REFCOUNT) != 0 || (id->tag & LIB_TAG_NO_MAIN) != 0) {
+		return;
+	}
+
+	BKE_library_foreach_ID_link(bmain, id, libblock_management_us_min, NULL, IDWALK_NOP);
+	id->tag |= LIB_TAG_NO_USER_REFCOUNT;
+}
+
 ListBase *which_libbase(Main *mainlib, short type)
 {
 	switch ((ID_Type)type) {
@@ -932,23 +1099,44 @@ void *BKE_libblock_alloc_notest(short type)
  * The user count is set to 1, all other content (apart from name and links) being
  * initialized to zero.
  */
-void *BKE_libblock_alloc(Main *bmain, short type, const char *name)
+void *BKE_libblock_alloc(Main *bmain, short type, const char *name, const int flag)
 {
-	ID *id = NULL;
-	ListBase *lb = which_libbase(bmain, type);
-	
-	id = BKE_libblock_alloc_notest(type);
+	BLI_assert((flag & LIB_ID_CREATE_NO_ALLOCATE) == 0);
+
+	ID *id = BKE_libblock_alloc_notest(type);
+
 	if (id) {
-		BKE_main_lock(bmain);
-		BLI_addtail(lb, id);
-		id->us = 1;
+		if ((flag & LIB_ID_CREATE_NO_MAIN) != 0) {
+			id->tag |= LIB_TAG_NO_MAIN;
+		}
+		if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) != 0) {
+			id->tag |= LIB_TAG_NO_USER_REFCOUNT;
+		}
+
 		id->icon_id = 0;
-		*( (short *)id->name) = type;
-		new_id(lb, id, name);
-		/* alphabetic insertion: is in new_id */
-		BKE_main_unlock(bmain);
+		*((short *)id->name) = type;
+		if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
+			id->us = 1;
+		}
+		if ((flag & LIB_ID_CREATE_NO_MAIN) == 0) {
+			ListBase *lb = which_libbase(bmain, type);
+
+			BKE_main_lock(bmain);
+			BLI_addtail(lb, id);
+			new_id(lb, id, name);
+			/* alphabetic insertion: is in new_id */
+			BKE_main_unlock(bmain);
+
+			/* TODO to be removed from here! */
+			if ((flag & LIB_ID_CREATE_NO_DEG_TAG) == 0) {
+				DAG_id_type_tag(bmain, type);
+			}
+		}
+		else {
+			BLI_strncpy(id->name + 2, name, sizeof(id->name) - 2);
+		}
 	}
-	DAG_id_type_tag(bmain, type);
+
 	return id;
 }
 
@@ -1071,70 +1259,80 @@ void BKE_libblock_init_empty(ID *id)
 
 /* by spec, animdata is first item after ID */
 /* and, trust that BKE_animdata_from_id() will only find AnimData for valid ID-types */
-static void id_copy_animdata(ID *id, const bool do_action)
+static void id_copy_animdata(Main *bmain, ID *id, const bool do_action)
 {
 	AnimData *adt = BKE_animdata_from_id(id);
 	
 	if (adt) {
 		IdAdtTemplate *iat = (IdAdtTemplate *)id;
-		iat->adt = BKE_animdata_copy(iat->adt, do_action); /* could be set to false, need to investigate */
+		iat->adt = BKE_animdata_copy(bmain, iat->adt, do_action); /* could be set to false, need to investigate */
 	}
 }
 
-/* material nodes use this since they are not treated as libdata */
-void BKE_libblock_copy_data(ID *id, const ID *id_from, const bool do_action)
+void BKE_libblock_copy_ex(Main *bmain, const ID *id, ID **r_newid, const int flag)
 {
-	if (id_from->properties)
-		id->properties = IDP_CopyProperty(id_from->properties);
+	ID *new_id = *r_newid;
+
+	/* Grrrrrrrrr... Not adding 'root' nodetrees to bmain.... grrrrrrrrrrrrrrrrrrrr! */
+	/* This is taken from original ntree copy code, might be weak actually? */
+	const bool use_nodetree_alloc_exception = ((GS(id->name) == ID_NT) && (bmain != NULL) &&
+	                                           (BLI_findindex(&bmain->nodetree, id) < 0));
+
+	BLI_assert((flag & LIB_ID_CREATE_NO_MAIN) != 0 || bmain != NULL);
+	BLI_assert((flag & LIB_ID_CREATE_NO_MAIN) != 0 || (flag & LIB_ID_CREATE_NO_ALLOCATE) == 0);
+	BLI_assert((flag & LIB_ID_CREATE_NO_MAIN) == 0 || (flag & LIB_ID_CREATE_NO_USER_REFCOUNT) != 0);
+
+	if ((flag & LIB_ID_CREATE_NO_ALLOCATE) != 0) {
+		/* r_newid already contains pointer to allocated memory. */
+		/* TODO do we want to memset(0) whole mem before filling it? */
+		BLI_strncpy(new_id->name, id->name, sizeof(new_id->name));
+		new_id->us = 0;
+		new_id->tag |= LIB_TAG_NOT_ALLOCATED | LIB_TAG_NO_MAIN | LIB_TAG_NO_USER_REFCOUNT;
+		/* TODO Do we want/need to copy more from ID struct itself? */
+	}
+	else {
+		new_id = BKE_libblock_alloc(bmain, GS(id->name), id->name + 2, flag | (use_nodetree_alloc_exception ? LIB_ID_CREATE_NO_MAIN : 0));
+	}
+	BLI_assert(new_id != NULL);
+
+	const size_t id_len = BKE_libblock_get_alloc_info(GS(new_id->name), NULL);
+	const size_t id_offset = sizeof(ID);
+	if ((int)id_len - (int)id_offset > 0) { /* signed to allow neg result */ /* XXX ????? */
+		const char *cp = (const char *)id;
+		char *cpn = (char *)new_id;
+
+		memcpy(cpn + id_offset, cp + id_offset, id_len - id_offset);
+	}
+
+	if (id->properties) {
+		new_id->properties = IDP_CopyProperty_ex(id->properties, flag);
+	}
 
 	/* the duplicate should get a copy of the animdata */
-	id_copy_animdata(id, do_action);
+	id_copy_animdata(bmain, new_id, (flag & LIB_ID_COPY_ACTIONS) != 0 && (flag & LIB_ID_CREATE_NO_MAIN) == 0);
+
+	if ((flag & LIB_ID_CREATE_NO_DEG_TAG) == 0 && (flag & LIB_ID_CREATE_NO_MAIN) == 0) {
+		DAG_id_type_tag(bmain, GS(new_id->name));
+	}
+
+	*r_newid = new_id;
 }
 
 /* used everywhere in blenkernel */
 void *BKE_libblock_copy(Main *bmain, const ID *id)
 {
 	ID *idn;
-	size_t idn_len;
-
-	idn = BKE_libblock_alloc(bmain, GS(id->name), id->name + 2);
 
-	assert(idn != NULL);
+	BKE_libblock_copy_ex(bmain, id, &idn, 0);
 
-	idn_len = MEM_allocN_len(idn);
-	if ((int)idn_len - (int)sizeof(ID) > 0) { /* signed to allow neg result */
-		const char *cp = (const char *)id;
-		char *cpn = (char *)idn;
-
-		memcpy(cpn + sizeof(ID), cp + sizeof(ID), idn_len - sizeof(ID));
-	}
-
-	BKE_libblock_copy_data(idn, id, false);
-	
 	return idn;
 }
 
 void *BKE_libblock_copy_nolib(const ID *id, const bool do_action)
 {
 	ID *idn;
-	size_t idn_len;
-
-	idn = BKE_libblock_alloc_notest(GS(id->name));
-	assert(idn != NULL);
-
-	BLI_strncpy(idn->name, id->name, sizeof(idn->name));
-
-	idn_len = MEM_allocN_len(idn);
-	if ((int)idn_len - (int)sizeof(ID) > 0) { /* signed to allow neg result */
-		const char *cp = (const char *)id;
-		char *cpn = (char *)idn;
-
-		memcpy(cpn + sizeof(ID), cp + sizeof(ID), idn_len - sizeof(ID));
-	}
-
-	idn->us = 1;
 
-	BKE_libblock_copy_data(idn, id, do_action);
+	BKE_libblock_copy_ex(NULL, id, &idn, LIB_ID_CREATE_NO_MAIN | LIB_ID_CREATE_NO_USER_REFCOUNT | (do_action ? LIB_ID_COPY_ACTIONS : 0));
 
 	return idn;
 }
diff --git a/source/blender/blenkernel/intern/library_remap.c b/source/blender/blenkernel/intern/library_remap.c
index 5e5ba44f039..f8c193fe108 100644
--- a/source/blender/blenkernel/intern/library_remap.c
+++ b/source/blender/blenkernel/intern/library_remap.c
@@ -186,8 +186,8 @@ static int foreach_libblock_remap_callback(void *user_data, ID *id_self, ID **id
 		const bool skip_never_null = (id_remap_data->flag & ID_REMAP_SKIP_NEVER_NULL_USAGE) != 0;
 
 #ifdef DEBUG_PRINT
-		printf("In %s: Remapping %s (%p) to %s (%p) (skip_indirect: %d)\n",
-		       id->name, old_id->name, old_id, new_id ? new_id->name : "<NONE>", new_id, skip_indirect);
+		printf("In %s: Remapping %s (%p) to %s (%p) (is_indirect: %d, skip_indirect: %d)\n",
+		       id->name, old_id->name, old_id, new_id ? new_id->name : "<NONE>", new_id, is_indirect, skip_indirect);
 #endif
 
 		if ((id_remap_data->flag & ID_REMAP_FLAG_NEVER_NULL_USAGE) && (cb_flag & IDWALK_CB_NEVER_NULL)) {
@@ -201,6 +201,14 @@ static int foreach_libblock_remap_callback(void *user_data, ID *id_self, ID **id
 		{
 			if (is_indirect) {
 				id_remap_data->skipped_indirect++;
+				if (is_obj) {
+					Object *ob = (Object *)id;
+					if (ob->data == *id_p && ob->proxy != NULL) {
+						/* And another 'Proudly brought to you by Proxy Hell' hack!
+						 * This will allow us to avoid clearing 'LIB_EXTERN' flag of obdata of proxies... */
+						id_remap_data->skipped_direct++;
+					}
+				}
 			}
 			else if (is_never_null || is_obj_editmode) {
 				id_remap_data->skipped_direct++;
@@ -241,7 +249,7 @@ static int foreach_libblock_remap_callback(void *user_data, ID *id_self, ID **id
 	return IDWALK_RET_NOP;
 }
 
-/* Some reamapping unfortunately require extra and/or specific handling, tackle those here. */
+/* Some remapping unfortunately require extra and/or specific handling, tackle those here. */
 static void libblock_remap_data_preprocess_scene_base_unlink(
         IDRemap *r_id_remap_data, Scene *sce, Base *base, const bool skip_indirect, const bool is_indirect)
 {
@@ -318,7 +326,7 @@ static void libblock_remap_data_preprocess(IDRemap *r_id_remap_data)
 	}
 }
 
-static void libblock_remap_data_postprocess_object_fromgroup_update(Main *bmain, Object *old_ob, Object *new_ob)
+static void libblock_remap_data_postprocess_object_update(Main *bmain, Object *old_ob, Object *new_ob)
 {
 	if (old_ob->flag & OB_FROMGROUP) {
 		/* Note that for Scene's BaseObject->flag, either we:
@@ -337,6 +345,13 @@ static void libblock_remap_data_postprocess_object_fromgroup_update(Main *bmain,
 			new_ob->flag |= OB_FROMGROUP;
 		}
 	}
+	if (old_ob->type == OB_MBALL) {
+		for (Object *ob = bmain->object.first; ob; ob = ob->id.next) {
+			if (ob->type == OB_MBALL && BKE_mball_is_basis_for(ob, old_ob)) {
+				DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
+			}
+		}
+	}
 }
 
 static void libblock_remap_data_postprocess_group_scene_unlink(Main *UNUSED(bmain), Scene *sce, ID *old_id)
@@ -547,7 +562,7 @@ void BKE_libblock_remap_locked(
 	 */
 	switch (GS(old_id->name)) {
 		case ID_OB:
-			libblock_remap_data_postprocess_object_fromgroup_update(bmain, (Object *)old_id, (Object *)new_id);
+			libblock_remap_data_postprocess_object_update(bmain, (Object *)old_id, (Object *)new_id);
 			break;
 		case ID_GR:
 			if (!new_id) {  /* Only affects us in case group was unlinked. */
@@ -657,8 +672,7 @@ void BKE_libblock_relink_ex(
 				switch (GS(old_id->name)) {
 					case ID_OB:
 					{
-						libblock_remap_data_postprocess_object_fromgroup_update(
-						            bmain, (Object *)old_id, (Object *)new_id);
+						libblock_remap_data_postprocess_object_update(bmain, (Object *)old_id, (Object *)new_id);
 						break;
 					}
 					case ID_GR:
@@ -673,7 +687,7 @@ void BKE_libblock_relink_ex(
 			else {
 				/* No choice but to check whole objects/groups. */
 				for (Object *ob = bmain->object.first; ob; ob = ob->id.next) {
-					libblock_remap_data_postprocess_object_fromgroup_update(bmain, ob, NULL);
+					libblock_remap_data_postprocess_object_update(bmain, ob, NULL);
 				}
 				for (Group *grp = bmain->group.first; grp; grp = grp->id.next) {
 					libblock_remap_data_postprocess_group_scene_unlink(bmain, sce, NULL);
@@ -730,9 +744,11 @@ void BKE_libblock_free_data(ID *id, const bool do_id_user)
 		IDP_FreeProperty_ex(id->properties, do_id_user);
 		MEM_freeN(id->properties);
 	}
+
+	/* XXX TODO remove animdata handling from each type's freeing func, and do it here, like for copy! */
 }
 
-void BKE_libblock_free_datablock(ID *id)
+void BKE_libblock_free_datablock(ID *id, const int UNUSED(flag))
 {
 	const short type = GS(id->name);
 	switch (type) {
@@ -842,6 +858,90 @@ void BKE_libblock_free_datablock(ID *id)
 	}
 }
 
+
+void BKE_id_free_ex(Main *bmain, void *idv, int flag, const bool use_flag_from_idtag)
+{
+	ID *id = idv;
+
+	if (use_flag_from_idtag) {
+		if ((id->tag & LIB_TAG_NO_MAIN) != 0) {
+			flag |= LIB_ID_FREE_NO_MAIN;
+		}
+		else {
+			flag &= ~LIB_ID_FREE_NO_MAIN;
+		}
+
+		if ((id->tag & LIB_TAG_NO_USER_REFCOUNT) != 0) {
+			flag |= LIB_ID_FREE_NO_USER_REFCOUNT;
+		}
+		else {
+			flag &= ~LIB_ID_FREE_NO_USER_REFCOUNT;
+		}
+
+		if ((id->tag & LIB_TAG_NOT_ALLOCATED) != 0) {
+			flag |= LIB_ID_FREE_NOT_ALLOCATED;
+		}
+		else {
+			flag &= ~LIB_ID_FREE_NOT_ALLOCATED;
+		}
+	}
+
+	BLI_assert((flag & LIB_ID_FREE_NO_MAIN) != 0 || bmain != NULL);
+	BLI_assert((flag & LIB_ID_FREE_NO_MAIN) != 0 || (flag & LIB_ID_FREE_NOT_ALLOCATED) == 0);
+	BLI_assert((flag & LIB_ID_FREE_NO_MAIN) != 0 || (flag & LIB_ID_FREE_NO_USER_REFCOUNT) == 0);
+
+	const short type = GS(id->name);
+
+	if (bmain && (flag & LIB_ID_FREE_NO_DEG_TAG) == 0) {
+		DAG_id_type_tag(bmain, type);
+	}
+
+#ifdef WITH_PYTHON
+	BPY_id_release(id);
+#endif
+
+	if ((flag & LIB_ID_FREE_NO_USER_REFCOUNT) == 0) {
+		BKE_libblock_relink_ex(bmain, id, NULL, NULL, true);
+	}
+
+	BKE_libblock_free_datablock(id, flag);
+
+	/* avoid notifying on removed data */
+	if (bmain) {
+		BKE_main_lock(bmain);
+	}
+
+	if ((flag & LIB_ID_FREE_NO_UI_USER) == 0) {
+		if (free_notifier_reference_cb) {
+			free_notifier_reference_cb(id);
+		}
+
+		if (remap_editor_id_reference_cb) {
+			remap_editor_id_reference_cb(id, NULL);
+		}
+	}
+
+	if ((flag & LIB_ID_FREE_NO_MAIN) == 0) {
+		ListBase *lb = which_libbase(bmain, type);
+		BLI_remlink(lb, id);
+	}
+
+	BKE_libblock_free_data(id, (flag & LIB_ID_FREE_NO_USER_REFCOUNT) == 0);
+
+	if (bmain) {
+		BKE_main_unlock(bmain);
+	}
+
+	if ((flag & LIB_ID_FREE_NOT_ALLOCATED) == 0) {
+		MEM_freeN(id);
+	}
+}
+
+void BKE_id_free(Main *bmain, void *idv)
+{
+	BKE_id_free_ex(bmain, idv, 0, true);
+}
+
 /**
  * used in headerbuttons.c image.c mesh.c screen.c sound.c and library.c
  *
@@ -866,7 +966,7 @@ void BKE_libblock_free_ex(Main *bmain, void *idv, const bool do_id_user, const b
 		BKE_libblock_relink_ex(bmain, id, NULL, NULL, true);
 	}
 
-	BKE_libblock_free_datablock(id);
+	BKE_libblock_free_datablock(id, 0);
 
 	/* avoid notifying on removed data */
 	BKE_main_lock(bmain);
diff --git a/source/blender/blenkernel/intern/linestyle.c b/source/blender/blenkernel/intern/linestyle.c
index 771e81ddc4f..1b1a12e702a 100644
--- a/source/blender/blenkernel/intern/linestyle.c
+++ b/source/blender/blenkernel/intern/linestyle.c
@@ -119,7 +119,7 @@ FreestyleLineStyle *BKE_linestyle_new(struct Main *bmain, const char *name)
 {
 	FreestyleLineStyle *linestyle;
 
-	linestyle = (FreestyleLineStyle *)BKE_libblock_alloc(bmain, ID_LS, name);
+	linestyle = (FreestyleLineStyle *)BKE_libblock_alloc(bmain, ID_LS, name, 0);
 
 	BKE_linestyle_init(linestyle);
 
@@ -155,73 +155,54 @@ void BKE_linestyle_free(FreestyleLineStyle *linestyle)
 		BKE_linestyle_geometry_modifier_remove(linestyle, m);
 }
 
-FreestyleLineStyle *BKE_linestyle_copy(struct Main *bmain, const FreestyleLineStyle *linestyle)
+/**
+ * Only copy internal data of Linestyle ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_linestyle_copy_data(
+        struct Main *bmain, FreestyleLineStyle *linestyle_dst, const FreestyleLineStyle *linestyle_src, const int flag)
 {
-	FreestyleLineStyle *new_linestyle;
-	LineStyleModifier *m;
-	int a;
+	/* We never handle usercount here for own data. */
+	const int flag_subdata = flag | LIB_ID_CREATE_NO_USER_REFCOUNT;
 
-	new_linestyle = BKE_linestyle_new(bmain, linestyle->id.name + 2);
-	BKE_linestyle_free(new_linestyle);
-
-	for (a = 0; a < MAX_MTEX; a++) {
-		if (linestyle->mtex[a]) {
-			new_linestyle->mtex[a] = MEM_mallocN(sizeof(MTex), "BKE_linestyle_copy");
-			memcpy(new_linestyle->mtex[a], linestyle->mtex[a], sizeof(MTex));
-			id_us_plus((ID *)new_linestyle->mtex[a]->tex);
+	for (int a = 0; a < MAX_MTEX; a++) {
+		if (linestyle_src->mtex[a]) {
+			linestyle_dst->mtex[a] = MEM_mallocN(sizeof(*linestyle_dst->mtex[a]), __func__);
+			*linestyle_dst->mtex[a] = *linestyle_src->mtex[a];
 		}
 	}
-	if (linestyle->nodetree) {
-		new_linestyle->nodetree = ntreeCopyTree(bmain, linestyle->nodetree);
+	if (linestyle_src->nodetree) {
+		BKE_id_copy_ex(bmain, (ID *)linestyle_src->nodetree, (ID **)&linestyle_dst->nodetree, flag, false);
 	}
 
-	new_linestyle->r = linestyle->r;
-	new_linestyle->g = linestyle->g;
-	new_linestyle->b = linestyle->b;
-	new_linestyle->alpha = linestyle->alpha;
-	new_linestyle->thickness = linestyle->thickness;
-	new_linestyle->thickness_position = linestyle->thickness_position;
-	new_linestyle->thickness_ratio = linestyle->thickness_ratio;
-	new_linestyle->flag = linestyle->flag;
-	new_linestyle->caps = linestyle->caps;
-	new_linestyle->chaining = linestyle->chaining;
-	new_linestyle->rounds = linestyle->rounds;
-	new_linestyle->split_length = linestyle->split_length;
-	new_linestyle->min_angle = linestyle->min_angle;
-	new_linestyle->max_angle = linestyle->max_angle;
-	new_linestyle->min_length = linestyle->min_length;
-	new_linestyle->max_length = linestyle->max_length;
-	new_linestyle->chain_count = linestyle->chain_count;
-	new_linestyle->split_dash1 = linestyle->split_dash1;
-	new_linestyle->split_gap1 = linestyle->split_gap1;
-	new_linestyle->split_dash2 = linestyle->split_dash2;
-	new_linestyle->split_gap2 = linestyle->split_gap2;
-	new_linestyle->split_dash3 = linestyle->split_dash3;
-	new_linestyle->split_gap3 = linestyle->split_gap3;
-	new_linestyle->dash1 = linestyle->dash1;
-	new_linestyle->gap1 = linestyle->gap1;
-	new_linestyle->dash2 = linestyle->dash2;
-	new_linestyle->gap2 = linestyle->gap2;
-	new_linestyle->dash3 = linestyle->dash3;
-	new_linestyle->gap3 = linestyle->gap3;
-	new_linestyle->panel = linestyle->panel;
-	new_linestyle->sort_key = linestyle->sort_key;
-	new_linestyle->integration_type = linestyle->integration_type;
-	new_linestyle->texstep = linestyle->texstep;
-	new_linestyle->pr_texture = linestyle->pr_texture;
-	new_linestyle->use_nodes = linestyle->use_nodes;
-	for (m = (LineStyleModifier *)linestyle->color_modifiers.first; m; m = m->next)
-		BKE_linestyle_color_modifier_copy(new_linestyle, m);
-	for (m = (LineStyleModifier *)linestyle->alpha_modifiers.first; m; m = m->next)
-		BKE_linestyle_alpha_modifier_copy(new_linestyle, m);
-	for (m = (LineStyleModifier *)linestyle->thickness_modifiers.first; m; m = m->next)
-		BKE_linestyle_thickness_modifier_copy(new_linestyle, m);
-	for (m = (LineStyleModifier *)linestyle->geometry_modifiers.first; m; m = m->next)
-		BKE_linestyle_geometry_modifier_copy(new_linestyle, m);
-
-	BKE_id_copy_ensure_local(bmain, &linestyle->id, &new_linestyle->id);
-
-	return new_linestyle;
+	LineStyleModifier *m;
+	BLI_listbase_clear(&linestyle_dst->color_modifiers);
+	for (m = (LineStyleModifier *)linestyle_src->color_modifiers.first; m; m = m->next) {
+		BKE_linestyle_color_modifier_copy(linestyle_dst, m, flag_subdata);
+	}
+	BLI_listbase_clear(&linestyle_dst->alpha_modifiers);
+	for (m = (LineStyleModifier *)linestyle_src->alpha_modifiers.first; m; m = m->next) {
+		BKE_linestyle_alpha_modifier_copy(linestyle_dst, m, flag_subdata);
+	}
+	BLI_listbase_clear(&linestyle_dst->thickness_modifiers);
+	for (m = (LineStyleModifier *)linestyle_src->thickness_modifiers.first; m; m = m->next) {
+		BKE_linestyle_thickness_modifier_copy(linestyle_dst, m, flag_subdata);
+	}
+	BLI_listbase_clear(&linestyle_dst->geometry_modifiers);
+	for (m = (LineStyleModifier *)linestyle_src->geometry_modifiers.first; m; m = m->next) {
+		BKE_linestyle_geometry_modifier_copy(linestyle_dst, m, flag_subdata);
+	}
+}
+
+FreestyleLineStyle *BKE_linestyle_copy(struct Main *bmain, const FreestyleLineStyle *linestyle)
+{
+	FreestyleLineStyle *linestyle_copy;
+	BKE_id_copy_ex(bmain, &linestyle->id, (ID **)&linestyle_copy, 0, false);
+	return linestyle_copy;
 }
 
 void BKE_linestyle_make_local(struct Main *bmain, FreestyleLineStyle *linestyle, const bool lib_local)
@@ -355,7 +336,8 @@ LineStyleModifier *BKE_linestyle_color_modifier_add(FreestyleLineStyle *linestyl
 	return m;
 }
 
-LineStyleModifier *BKE_linestyle_color_modifier_copy(FreestyleLineStyle *linestyle, const LineStyleModifier *m)
+LineStyleModifier *BKE_linestyle_color_modifier_copy(
+        FreestyleLineStyle *linestyle, const LineStyleModifier *m, const int flag)
 {
 	LineStyleModifier *new_m;
 
@@ -388,9 +370,10 @@ LineStyleModifier *BKE_linestyle_color_modifier_copy(FreestyleLineStyle *linesty
 		{
 			LineStyleColorModifier_DistanceFromObject *p = (LineStyleColorModifier_DistanceFromObject *)m;
 			LineStyleColorModifier_DistanceFromObject *q = (LineStyleColorModifier_DistanceFromObject *)new_m;
-			if (p->target)
-				id_us_plus(&p->target->id);
 			q->target = p->target;
+			if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
+				id_us_plus((ID *)q->target);
+			}
 			q->color_ramp = MEM_dupallocN(p->color_ramp);
 			q->range_min = p->range_min;
 			q->range_max = p->range_max;
@@ -594,7 +577,8 @@ LineStyleModifier *BKE_linestyle_alpha_modifier_add(FreestyleLineStyle *linestyl
 	return m;
 }
 
-LineStyleModifier *BKE_linestyle_alpha_modifier_copy(FreestyleLineStyle *linestyle, const LineStyleModifier *m)
+LineStyleModifier *BKE_linestyle_alpha_modifier_copy(
+        FreestyleLineStyle *linestyle, const LineStyleModifier *m, const int UNUSED(flag))
 {
 	LineStyleModifier *new_m;
 
@@ -863,7 +847,8 @@ LineStyleModifier *BKE_linestyle_thickness_modifier_add(FreestyleLineStyle *line
 	return m;
 }
 
-LineStyleModifier *BKE_linestyle_thickness_modifier_copy(FreestyleLineStyle *linestyle, const LineStyleModifier *m)
+LineStyleModifier *BKE_linestyle_thickness_modifier_copy(
+        FreestyleLineStyle *linestyle, const LineStyleModifier *m, const int flag)
 {
 	LineStyleModifier *new_m;
 
@@ -901,9 +886,10 @@ LineStyleModifier *BKE_linestyle_thickness_modifier_copy(FreestyleLineStyle *lin
 		{
 			LineStyleThicknessModifier_DistanceFromObject *p = (LineStyleThicknessModifier_DistanceFromObject *)m;
 			LineStyleThicknessModifier_DistanceFromObject *q = (LineStyleThicknessModifier_DistanceFromObject *)new_m;
-			if (p->target)
-				id_us_plus(&p->target->id);
 			q->target = p->target;
+			if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
+				id_us_plus((ID *)q->target);
+			}
 			q->curve = curvemapping_copy(p->curve);
 			q->flags = p->flags;
 			q->range_min = p->range_min;
@@ -1195,7 +1181,8 @@ LineStyleModifier *BKE_linestyle_geometry_modifier_add(FreestyleLineStyle *lines
 	return m;
 }
 
-LineStyleModifier *BKE_linestyle_geometry_modifier_copy(FreestyleLineStyle *linestyle, const LineStyleModifier *m)
+LineStyleModifier *BKE_linestyle_geometry_modifier_copy(
+        FreestyleLineStyle *linestyle, const LineStyleModifier *m, const int UNUSED(flag))
 {
 	LineStyleModifier *new_m;
 
diff --git a/source/blender/blenkernel/intern/mask.c b/source/blender/blenkernel/intern/mask.c
index ae27e9bcd34..8b8b48db279 100644
--- a/source/blender/blenkernel/intern/mask.c
+++ b/source/blender/blenkernel/intern/mask.c
@@ -51,6 +51,7 @@
 
 #include "BKE_animsys.h"
 #include "BKE_curve.h"
+#include "BKE_depsgraph.h"
 #include "BKE_global.h"
 #include "BKE_library.h"
 #include "BKE_main.h"
@@ -794,7 +795,7 @@ static Mask *mask_alloc(Main *bmain, const char *name)
 {
 	Mask *mask;
 
-	mask = BKE_libblock_alloc(bmain, ID_MSK, name);
+	mask = BKE_libblock_alloc(bmain, ID_MSK, name, 0);
 
 	id_fake_user_set(&mask->id);
 
@@ -817,10 +818,13 @@ Mask *BKE_mask_new(Main *bmain, const char *name)
 	mask->sfra = 1;
 	mask->efra = 100;
 
+	DAG_relations_tag_update(bmain);
+
 	return mask;
 }
 
 /* TODO(sergey): Use generic BKE_libblock_copy_nolib() instead. */
+/* TODO(bastien): Use new super cool & generic BKE_id_copy_ex() instead! */
 Mask *BKE_mask_copy_nolib(Mask *mask)
 {
 	Mask *mask_new;
@@ -840,22 +844,29 @@ Mask *BKE_mask_copy_nolib(Mask *mask)
 	return mask_new;
 }
 
-Mask *BKE_mask_copy(Main *bmain, const Mask *mask)
+/**
+ * Only copy internal data of Mask ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_mask_copy_data(Main *UNUSED(bmain), Mask *mask_dst, const Mask *mask_src, const int UNUSED(flag))
 {
-	Mask *mask_new;
+	BLI_listbase_clear(&mask_dst->masklayers);
 
-	mask_new = BKE_libblock_copy(bmain, &mask->id);
-
-	BLI_listbase_clear(&mask_new->masklayers);
-
-	BKE_mask_layer_copy_list(&mask_new->masklayers, &mask->masklayers);
+	BKE_mask_layer_copy_list(&mask_dst->masklayers, &mask_src->masklayers);  /* TODO add unused flag to those as well. */
 
 	/* enable fake user by default */
-	id_fake_user_set(&mask_new->id);
-
-	BKE_id_copy_ensure_local(bmain, &mask->id, &mask_new->id);
+	id_fake_user_set(&mask_dst->id);
+}
 
-	return mask_new;
+Mask *BKE_mask_copy(Main *bmain, const Mask *mask)
+{
+	Mask *mask_copy;
+	BKE_id_copy_ex(bmain, &mask->id, (ID **)&mask_copy, 0, false);
+	return mask_copy;
 }
 
 void BKE_mask_make_local(Main *bmain, Mask *mask, const bool lib_local)
@@ -1171,17 +1182,6 @@ void BKE_mask_point_parent_matrix_get(MaskSplinePoint *point, float ctime, float
 	}
 }
 
-static void mask_evaluate_apply_point_parent(MaskSplinePoint *point, float ctime)
-{
-	float parent_matrix[3][3];
-
-	BKE_mask_point_parent_matrix_get(point, ctime, parent_matrix);
-
-	mul_m3_v2(parent_matrix, point->bezt.vec[0]);
-	mul_m3_v2(parent_matrix, point->bezt.vec[1]);
-	mul_m3_v2(parent_matrix, point->bezt.vec[2]);
-}
-
 static void mask_calc_point_handle(MaskSplinePoint *point, MaskSplinePoint *point_prev, MaskSplinePoint *point_next)
 {
 	BezTriple *bezt = &point->bezt;
@@ -1397,80 +1397,12 @@ void BKE_mask_spline_ensure_deform(MaskSpline *spline)
 
 void BKE_mask_layer_evaluate(MaskLayer *masklay, const float ctime, const bool do_newframe)
 {
-	/* animation if available */
+	/* Animation if available. */
 	if (do_newframe) {
-		MaskLayerShape *masklay_shape_a;
-		MaskLayerShape *masklay_shape_b;
-		int found;
-
-		if ((found = BKE_mask_layer_shape_find_frame_range(masklay, ctime,
-		                                                   &masklay_shape_a, &masklay_shape_b)))
-		{
-			if (found == 1) {
-#if 0
-				printf("%s: exact %d %d (%d)\n", __func__, (int)ctime, BLI_listbase_count(&masklay->splines_shapes),
-				       masklay_shape_a->frame);
-#endif
-
-				BKE_mask_layer_shape_to_mask(masklay, masklay_shape_a);
-			}
-			else if (found == 2) {
-				float w = masklay_shape_b->frame - masklay_shape_a->frame;
-#if 0
-				printf("%s: tween %d %d (%d %d)\n", __func__, (int)ctime, BLI_listbase_count(&masklay->splines_shapes),
-				       masklay_shape_a->frame, masklay_shape_b->frame);
-#endif
-				BKE_mask_layer_shape_to_mask_interp(masklay, masklay_shape_a, masklay_shape_b,
-				                                    (ctime - masklay_shape_a->frame) / w);
-			}
-			else {
-				/* always fail, should never happen */
-				BLI_assert(found == 2);
-			}
-		}
-	}
-	/* animation done... */
-
-	BKE_mask_layer_calc_handles(masklay);
-
-	/* update deform */
-	{
-		MaskSpline *spline;
-
-		for (spline = masklay->splines.first; spline; spline = spline->next) {
-			int i;
-			bool need_handle_recalc = false;
-
-			BKE_mask_spline_ensure_deform(spline);
-
-			for (i = 0; i < spline->tot_point; i++) {
-				MaskSplinePoint *point = &spline->points[i];
-				MaskSplinePoint *point_deform = &spline->points_deform[i];
-
-				BKE_mask_point_free(point_deform);
-
-				*point_deform = *point;
-				point_deform->uw = point->uw ? MEM_dupallocN(point->uw) : NULL;
-
-				mask_evaluate_apply_point_parent(point_deform, ctime);
-
-				if (ELEM(point->bezt.h1, HD_AUTO, HD_VECT)) {
-					need_handle_recalc = true;
-				}
-			}
-
-			/* if the spline has auto or vector handles, these need to be recalculated after deformation */
-			if (need_handle_recalc) {
-				for (i = 0; i < spline->tot_point; i++) {
-					MaskSplinePoint *point_deform = &spline->points_deform[i];
-					if (ELEM(point_deform->bezt.h1, HD_AUTO, HD_VECT)) {
-						BKE_mask_calc_handle_point(spline, point_deform);
-					}
-				}
-			}
-			/* end extra calc handles loop */
-		}
+		BKE_mask_layer_evaluate_animation(masklay, ctime);
 	}
+	/* Update deform. */
+	BKE_mask_layer_evaluate_deform(masklay, ctime);
 }
 
 void BKE_mask_evaluate(Mask *mask, const float ctime, const bool do_newframe)
diff --git a/source/blender/blenkernel/intern/mask_evaluate.c b/source/blender/blenkernel/intern/mask_evaluate.c
index 1b275f455f4..0d71cc548c7 100644
--- a/source/blender/blenkernel/intern/mask_evaluate.c
+++ b/source/blender/blenkernel/intern/mask_evaluate.c
@@ -42,6 +42,8 @@
 #include "DNA_mask_types.h"
 
 #include "BKE_curve.h"
+#include "BKE_depsgraph.h"
+#include "BKE_global.h"
 #include "BKE_mask.h"
 
 
@@ -810,3 +812,111 @@ float *BKE_mask_point_segment_diff(MaskSpline *spline, MaskSplinePoint *point,
 
 	return diff_points;
 }
+
+static void mask_evaluate_apply_point_parent(MaskSplinePoint *point, float ctime)
+{
+	float parent_matrix[3][3];
+	BKE_mask_point_parent_matrix_get(point, ctime, parent_matrix);
+	mul_m3_v2(parent_matrix, point->bezt.vec[0]);
+	mul_m3_v2(parent_matrix, point->bezt.vec[1]);
+	mul_m3_v2(parent_matrix, point->bezt.vec[2]);
+}
+
+void BKE_mask_layer_evaluate_animation(MaskLayer *masklay, const float ctime)
+{
+	/* animation if available */
+	MaskLayerShape *masklay_shape_a;
+	MaskLayerShape *masklay_shape_b;
+	int found;
+	if ((found = BKE_mask_layer_shape_find_frame_range(
+	        masklay, ctime, &masklay_shape_a, &masklay_shape_b)))
+	{
+		if (found == 1) {
+#if 0
+			printf("%s: exact %d %d (%d)\n",
+			       __func__,
+			       (int)ctime,
+			       BLI_listbase_count(&masklay->splines_shapes),
+			       masklay_shape_a->frame);
+#endif
+			BKE_mask_layer_shape_to_mask(masklay, masklay_shape_a);
+		}
+		else if (found == 2) {
+			float w = masklay_shape_b->frame - masklay_shape_a->frame;
+#if 0
+			printf("%s: tween %d %d (%d %d)\n",
+			       __func__,
+			       (int)ctime,
+			       BLI_listbase_count(&masklay->splines_shapes),
+			       masklay_shape_a->frame, masklay_shape_b->frame);
+#endif
+			BKE_mask_layer_shape_to_mask_interp(
+			        masklay,
+			        masklay_shape_a, masklay_shape_b,
+			        (ctime - masklay_shape_a->frame) / w);
+		}
+		else {
+			/* always fail, should never happen */
+			BLI_assert(found == 2);
+		}
+	}
+}
+
+void BKE_mask_layer_evaluate_deform(MaskLayer *masklay, const float ctime)
+{
+	BKE_mask_layer_calc_handles(masklay);
+	for (MaskSpline *spline = masklay->splines.first;
+	     spline != NULL;
+	     spline = spline->next)
+	{
+		bool need_handle_recalc = false;
+		BKE_mask_spline_ensure_deform(spline);
+		for (int i = 0; i < spline->tot_point; i++) {
+			MaskSplinePoint *point = &spline->points[i];
+			MaskSplinePoint *point_deform = &spline->points_deform[i];
+			BKE_mask_point_free(point_deform);
+			*point_deform = *point;
+			point_deform->uw = point->uw ? MEM_dupallocN(point->uw) : NULL;
+			mask_evaluate_apply_point_parent(point_deform, ctime);
+			if (ELEM(point->bezt.h1, HD_AUTO, HD_VECT)) {
+				need_handle_recalc = true;
+			}
+		}
+		/* if the spline has auto or vector handles, these need to be
+		 * recalculated after deformation.
+		 */
+		if (need_handle_recalc) {
+			for (int i = 0; i < spline->tot_point; i++) {
+				MaskSplinePoint *point_deform = &spline->points_deform[i];
+				if (ELEM(point_deform->bezt.h1, HD_AUTO, HD_VECT)) {
+					BKE_mask_calc_handle_point(spline, point_deform);
+				}
+			}
+		}
+		/* end extra calc handles loop */
+	}
+}
+
+#define DEBUG_PRINT if (G.debug & G_DEBUG_DEPSGRAPH) printf
+
+void BKE_mask_eval_animation(struct EvaluationContext *eval_ctx, Mask *mask)
+{
+	DEBUG_PRINT("%s on %s (%p)\n", __func__, mask->id.name, mask);
+	for (MaskLayer *mask_layer = mask->masklayers.first;
+	     mask_layer != NULL;
+	     mask_layer = mask_layer->next)
+	{
+		BKE_mask_layer_evaluate_animation(mask_layer, eval_ctx->ctime);
+	}
+}
+
+void BKE_mask_eval_update(struct EvaluationContext *eval_ctx, Mask *mask)
+{
+	DEBUG_PRINT("%s on %s (%p)\n", __func__, mask->id.name, mask);
+	for (MaskLayer *mask_layer = mask->masklayers.first;
+	     mask_layer != NULL;
+	     mask_layer = mask_layer->next)
+	{
+		BKE_mask_layer_evaluate_deform(mask_layer, eval_ctx->ctime);
+	}
+}
diff --git a/source/blender/blenkernel/intern/material.c b/source/blender/blenkernel/intern/material.c
index f21efb71180..f5be72c6b4d 100644
--- a/source/blender/blenkernel/intern/material.c
+++ b/source/blender/blenkernel/intern/material.c
@@ -212,50 +212,68 @@ Material *BKE_material_add(Main *bmain, const char *name)
 {
 	Material *ma;
 
-	ma = BKE_libblock_alloc(bmain, ID_MA, name);
+	ma = BKE_libblock_alloc(bmain, ID_MA, name, 0);
 	
 	BKE_material_init(ma);
 	
 	return ma;
 }
 
-/* XXX keep synced with next function */
-Material *BKE_material_copy(Main *bmain, const Material *ma)
+/**
+ * Only copy internal data of Material ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_material_copy_data(Main *bmain, Material *ma_dst, const Material *ma_src, const int flag)
 {
-	Material *man;
-	int a;
-	
-	man = BKE_libblock_copy(bmain, &ma->id);
-	
-	id_lib_extern((ID *)man->group);
-	
-	for (a = 0; a < MAX_MTEX; a++) {
-		if (ma->mtex[a]) {
-			man->mtex[a] = MEM_mallocN(sizeof(MTex), "copymaterial");
-			memcpy(man->mtex[a], ma->mtex[a], sizeof(MTex));
-			id_us_plus((ID *)man->mtex[a]->tex);
+	for (int a = 0; a < MAX_MTEX; a++) {
+		if (ma_src->mtex[a]) {
+			ma_dst->mtex[a] = MEM_mallocN(sizeof(*ma_dst->mtex[a]), __func__);
+			*ma_dst->mtex[a] = *ma_src->mtex[a];
 		}
 	}
-	
-	if (ma->ramp_col) man->ramp_col = MEM_dupallocN(ma->ramp_col);
-	if (ma->ramp_spec) man->ramp_spec = MEM_dupallocN(ma->ramp_spec);
-	
-	if (ma->nodetree) {
-		man->nodetree = ntreeCopyTree(bmain, ma->nodetree);
+
+	if (ma_src->ramp_col) {
+		ma_dst->ramp_col = MEM_dupallocN(ma_src->ramp_col);
+	}
+	if (ma_src->ramp_spec) {
+		ma_dst->ramp_spec = MEM_dupallocN(ma_src->ramp_spec);
 	}
 
-	BKE_previewimg_id_copy(&man->id, &ma->id);
+	if (ma_src->nodetree) {
+		BKE_id_copy_ex(bmain, (ID *)ma_src->nodetree, (ID **)&ma_dst->nodetree, flag, false);
+	}
 
-	BLI_listbase_clear(&man->gpumaterial);
+	if ((flag & LIB_ID_COPY_NO_PREVIEW) == 0) {
+		BKE_previewimg_id_copy(&ma_dst->id, &ma_src->id);
+	}
+	else {
+		ma_dst->preview = NULL;
+	}
 
-	BKE_id_copy_ensure_local(bmain, &ma->id, &man->id);
+	BLI_listbase_clear(&ma_dst->gpumaterial);
+}
 
-	return man;
+Material *BKE_material_copy(Main *bmain, const Material *ma)
+{
+	Material *ma_copy;
+	BKE_id_copy_ex(bmain, &ma->id, (ID **)&ma_copy, 0, false);
+	return ma_copy;
 }
 
 /* XXX (see above) material copy without adding to main dbase */
 Material *localize_material(Material *ma)
 {
+	/* TODO replace with something like
+	 * 	Material *ma_copy;
+	 * 	BKE_id_copy_ex(bmain, &ma->id, (ID **)&ma_copy, LIB_ID_COPY_NO_MAIN | LIB_ID_COPY_NO_PREVIEW | LIB_ID_COPY_NO_USER_REFCOUNT, false);
+	 * 	return ma_copy;
+	 *
+	 * ... Once f*** nodes are fully converted to that too :( */
+
 	Material *man;
 	int a;
 	
@@ -343,6 +361,8 @@ Material ***give_matarar_id(ID *id)
 			return &(((Curve *)id)->mat);
 		case ID_MB:
 			return &(((MetaBall *)id)->mat);
+		default:
+			break;
 	}
 	return NULL;
 }
@@ -359,6 +379,8 @@ short *give_totcolp_id(ID *id)
 			return &(((Curve *)id)->totcol);
 		case ID_MB:
 			return &(((MetaBall *)id)->totcol);
+		default:
+			break;
 	}
 	return NULL;
 }
@@ -378,6 +400,8 @@ static void material_data_index_remove_id(ID *id, short index)
 		case ID_MB:
 			/* meta-elems don't have materials atm */
 			break;
+		default:
+			break;
 	}
 }
 
@@ -396,6 +420,8 @@ static void material_data_index_clear_id(ID *id)
 		case ID_MB:
 			/* meta-elems don't have materials atm */
 			break;
+		default:
+			break;
 	}
 }
 
diff --git a/source/blender/blenkernel/intern/mball.c b/source/blender/blenkernel/intern/mball.c
index b80579014d6..dfc49c996b1 100644
--- a/source/blender/blenkernel/intern/mball.c
+++ b/source/blender/blenkernel/intern/mball.c
@@ -96,33 +96,36 @@ MetaBall *BKE_mball_add(Main *bmain, const char *name)
 {
 	MetaBall *mb;
 
-	mb = BKE_libblock_alloc(bmain, ID_MB, name);
+	mb = BKE_libblock_alloc(bmain, ID_MB, name, 0);
 
 	BKE_mball_init(mb);
 
 	return mb;
 }
 
-MetaBall *BKE_mball_copy(Main *bmain, const MetaBall *mb)
+/**
+ * Only copy internal data of MetaBall ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_mball_copy_data(Main *UNUSED(bmain), MetaBall *mb_dst, const MetaBall *mb_src, const int UNUSED(flag))
 {
-	MetaBall *mbn;
-	int a;
-	
-	mbn = BKE_libblock_copy(bmain, &mb->id);
+	BLI_duplicatelist(&mb_dst->elems, &mb_src->elems);
 
-	BLI_duplicatelist(&mbn->elems, &mb->elems);
-	
-	mbn->mat = MEM_dupallocN(mb->mat);
-	for (a = 0; a < mbn->totcol; a++) {
-		id_us_plus((ID *)mbn->mat[a]);
-	}
+	mb_dst->mat = MEM_dupallocN(mb_src->mat);
 
-	mbn->editelems = NULL;
-	mbn->lastelem = NULL;
-	
-	BKE_id_copy_ensure_local(bmain, &mb->id, &mbn->id);
+	mb_dst->editelems = NULL;
+	mb_dst->lastelem = NULL;
+}
 
-	return mbn;
+MetaBall *BKE_mball_copy(Main *bmain, const MetaBall *mb)
+{
+	MetaBall *mb_copy;
+	BKE_id_copy_ex(bmain, &mb->id, (ID **)&mb_copy, 0, false);
+	return mb_copy;
 }
 
 void BKE_mball_make_local(Main *bmain, MetaBall *mb, const bool lib_local)
@@ -470,7 +473,7 @@ bool BKE_mball_center_bounds(MetaBall *mb, float r_cent[3])
 	return false;
 }
 
-void BKE_mball_transform(MetaBall *mb, float mat[4][4])
+void BKE_mball_transform(MetaBall *mb, float mat[4][4], const bool do_props)
 {
 	MetaElem *me;
 	float quat[4];
@@ -482,14 +485,17 @@ void BKE_mball_transform(MetaBall *mb, float mat[4][4])
 	for (me = mb->elems.first; me; me = me->next) {
 		mul_m4_v3(mat, &me->x);
 		mul_qt_qtqt(me->quat, quat, me->quat);
-		me->rad *= scale;
-		/* hrmf, probably elems shouldn't be
-		 * treating scale differently - campbell */
-		if (!MB_TYPE_SIZE_SQUARED(me->type)) {
-			mul_v3_fl(&me->expx, scale);
-		}
-		else {
-			mul_v3_fl(&me->expx, scale_sqrt);
+
+		if (do_props) {
+			me->rad *= scale;
+			/* hrmf, probably elems shouldn't be
+			 * treating scale differently - campbell */
+			if (!MB_TYPE_SIZE_SQUARED(me->type)) {
+				mul_v3_fl(&me->expx, scale);
+			}
+			else {
+				mul_v3_fl(&me->expx, scale_sqrt);
+			}
 		}
 	}
 }
diff --git a/source/blender/blenkernel/intern/mesh.c b/source/blender/blenkernel/intern/mesh.c
index 6233caa43fa..0d01fe77453 100644
--- a/source/blender/blenkernel/intern/mesh.c
+++ b/source/blender/blenkernel/intern/mesh.c
@@ -494,53 +494,56 @@ Mesh *BKE_mesh_add(Main *bmain, const char *name)
 {
 	Mesh *me;
 
-	me = BKE_libblock_alloc(bmain, ID_ME, name);
+	me = BKE_libblock_alloc(bmain, ID_ME, name, 0);
 
 	BKE_mesh_init(me);
 
 	return me;
 }
 
-Mesh *BKE_mesh_copy(Main *bmain, const Mesh *me)
+/**
+ * Only copy internal data of Mesh ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_mesh_copy_data(Main *bmain, Mesh *me_dst, const Mesh *me_src, const int flag)
 {
-	Mesh *men;
-	int a;
-	const int do_tessface = ((me->totface != 0) && (me->totpoly == 0)); /* only do tessface if we have no polys */
-	
-	men = BKE_libblock_copy(bmain, &me->id);
-	
-	men->mat = MEM_dupallocN(me->mat);
-	for (a = 0; a < men->totcol; a++) {
-		id_us_plus((ID *)men->mat[a]);
-	}
-	id_us_plus((ID *)men->texcomesh);
+	const bool do_tessface = ((me_src->totface != 0) && (me_src->totpoly == 0)); /* only do tessface if we have no polys */
+
+	me_dst->mat = MEM_dupallocN(me_src->mat);
 
-	CustomData_copy(&me->vdata, &men->vdata, CD_MASK_MESH, CD_DUPLICATE, men->totvert);
-	CustomData_copy(&me->edata, &men->edata, CD_MASK_MESH, CD_DUPLICATE, men->totedge);
-	CustomData_copy(&me->ldata, &men->ldata, CD_MASK_MESH, CD_DUPLICATE, men->totloop);
-	CustomData_copy(&me->pdata, &men->pdata, CD_MASK_MESH, CD_DUPLICATE, men->totpoly);
+	CustomData_copy(&me_src->vdata, &me_dst->vdata, CD_MASK_MESH, CD_DUPLICATE, me_dst->totvert);
+	CustomData_copy(&me_src->edata, &me_dst->edata, CD_MASK_MESH, CD_DUPLICATE, me_dst->totedge);
+	CustomData_copy(&me_src->ldata, &me_dst->ldata, CD_MASK_MESH, CD_DUPLICATE, me_dst->totloop);
+	CustomData_copy(&me_src->pdata, &me_dst->pdata, CD_MASK_MESH, CD_DUPLICATE, me_dst->totpoly);
 	if (do_tessface) {
-		CustomData_copy(&me->fdata, &men->fdata, CD_MASK_MESH, CD_DUPLICATE, men->totface);
+		CustomData_copy(&me_src->fdata, &me_dst->fdata, CD_MASK_MESH, CD_DUPLICATE, me_dst->totface);
 	}
 	else {
-		mesh_tessface_clear_intern(men, false);
+		mesh_tessface_clear_intern(me_dst, false);
 	}
 
-	BKE_mesh_update_customdata_pointers(men, do_tessface);
+	BKE_mesh_update_customdata_pointers(me_dst, do_tessface);
 
-	men->edit_btmesh = NULL;
+	me_dst->edit_btmesh = NULL;
 
-	men->mselect = MEM_dupallocN(men->mselect);
-	men->bb = MEM_dupallocN(men->bb);
+	me_dst->mselect = MEM_dupallocN(me_dst->mselect);
+	me_dst->bb = MEM_dupallocN(me_dst->bb);
 
-	if (me->key) {
-		men->key = BKE_key_copy(bmain, me->key);
-		men->key->from = (ID *)men;
+	/* TODO Do we want to add flag to prevent this? */
+	if (me_src->key) {
+		BKE_id_copy_ex(bmain, &me_src->key->id, (ID **)&me_dst->key, flag, false);
 	}
+}
 
-	BKE_id_copy_ensure_local(bmain, &me->id, &men->id);
-
-	return men;
+Mesh *BKE_mesh_copy(Main *bmain, const Mesh *me)
+{
+	Mesh *me_copy;
+	BKE_id_copy_ex(bmain, &me->id, (ID **)&me_copy, 0, false);
+	return me_copy;
 }
 
 BMesh *BKE_mesh_to_bmesh(
@@ -2056,6 +2059,12 @@ void BKE_mesh_mselect_active_set(Mesh *me, int index, int type)
 	           (me->mselect[me->totselect - 1].type  == type));
 }
 
+/**
+ * Compute 'split' (aka loop, or per face corner's) normals.
+ *
+ * \param r_lnors_spacearr Allows to get computed loop normal space array. That data, among other things,
+ *                         contains 'smooth fan' info, useful e.g. to split geometry along sharp edges...
+ */
 void BKE_mesh_calc_normals_split_ex(Mesh *mesh, MLoopNorSpaceArray *r_lnors_spacearr)
 {
 	float (*r_loopnors)[3];
@@ -2063,6 +2072,11 @@ void BKE_mesh_calc_normals_split_ex(Mesh *mesh, MLoopNorSpaceArray *r_lnors_spac
 	short (*clnors)[2] = NULL;
 	bool free_polynors = false;
 
+	/* Note that we enforce computing clnors when the clnor space array is requested by caller here.
+	 * However, we obviously only use the autosmooth angle threshold only in case autosmooth is enabled. */
+	const bool use_split_normals = (r_lnors_spacearr != NULL) || ((mesh->flag & ME_AUTOSMOOTH) != 0);
+	const float split_angle = (mesh->flag & ME_AUTOSMOOTH) != 0 ? mesh->smoothresh : (float)M_PI;
+
 	if (CustomData_has_layer(&mesh->ldata, CD_NORMAL)) {
 		r_loopnors = CustomData_get_layer(&mesh->ldata, CD_NORMAL);
 		memset(r_loopnors, 0, sizeof(float[3]) * mesh->totloop);
@@ -2091,7 +2105,7 @@ void BKE_mesh_calc_normals_split_ex(Mesh *mesh, MLoopNorSpaceArray *r_lnors_spac
 	BKE_mesh_normals_loop_split(
 	        mesh->mvert, mesh->totvert, mesh->medge, mesh->totedge,
 	        mesh->mloop, r_loopnors, mesh->totloop, mesh->mpoly, (const float (*)[3])polynors, mesh->totpoly,
-	        (mesh->flag & ME_AUTOSMOOTH) != 0, mesh->smoothresh, r_lnors_spacearr, clnors, NULL);
+	        use_split_normals, split_angle, r_lnors_spacearr, clnors, NULL);
 
 	if (free_polynors) {
 		MEM_freeN(polynors);
@@ -2123,118 +2137,70 @@ typedef struct SplitFaceNewEdge {
 /* Detect needed new vertices, and update accordingly loops' vertex indices.
  * WARNING! Leaves mesh in invalid state. */
 static int split_faces_prepare_new_verts(
-        const Mesh *mesh, MLoopNorSpaceArray *lnors_spacearr, SplitFaceNewVert **new_verts, MemArena *memarena,
-        bool *r_need_vnors_recalc)
+        const Mesh *mesh, MLoopNorSpaceArray *lnors_spacearr, SplitFaceNewVert **new_verts, MemArena *memarena)
 {
-	/* Note: if lnors_spacearr is NULL, ther is no autosmooth handling, and we only split out flat polys. */
+	/* This is now mandatory, trying to do the job in simple way without that data is doomed to fail, even when only
+	 * dealing with smooth/flat faces one can find cases that no simple algorithm can handle properly. */
+	BLI_assert(lnors_spacearr != NULL);
+
 	const int num_loops = mesh->totloop;
 	int num_verts = mesh->totvert;
 	MVert *mvert = mesh->mvert;
 	MLoop *mloop = mesh->mloop;
 
 	BLI_bitmap *verts_used = BLI_BITMAP_NEW(num_verts, __func__);
+	BLI_bitmap *done_loops = BLI_BITMAP_NEW(num_loops, __func__);
 
-	if (lnors_spacearr) {
-		BLI_bitmap *done_loops = BLI_BITMAP_NEW(num_loops, __func__);
-
-		MLoop *ml = mloop;
-		MLoopNorSpace **lnor_space = lnors_spacearr->lspacearr;
-		for (int loop_idx = 0; loop_idx < num_loops; loop_idx++, ml++, lnor_space++) {
-			if (!BLI_BITMAP_TEST(done_loops, loop_idx)) {
-				const int vert_idx = ml->v;
-				const bool vert_used = BLI_BITMAP_TEST_BOOL(verts_used, vert_idx);
-				/* If vert is already used by another smooth fan, we need a new vert for this one. */
-				const int new_vert_idx = vert_used ? num_verts++ : vert_idx;
-
-				BLI_assert(*lnor_space);
-
-				if ((*lnor_space)->loops) {
-					for (LinkNode *lnode = (*lnor_space)->loops; lnode; lnode = lnode->next) {
-						const int ml_fan_idx = GET_INT_FROM_POINTER(lnode->link);
-						BLI_BITMAP_ENABLE(done_loops, ml_fan_idx);
-						if (vert_used) {
-							mloop[ml_fan_idx].v = new_vert_idx;
-						}
-					}
-				}
-				else {
-					/* Single loop in this fan... */
-					BLI_BITMAP_ENABLE(done_loops, loop_idx);
+	MLoop *ml = mloop;
+	MLoopNorSpace **lnor_space = lnors_spacearr->lspacearr;
+
+	for (int loop_idx = 0; loop_idx < num_loops; loop_idx++, ml++, lnor_space++) {
+		if (!BLI_BITMAP_TEST(done_loops, loop_idx)) {
+			const int vert_idx = ml->v;
+			const bool vert_used = BLI_BITMAP_TEST_BOOL(verts_used, vert_idx);
+			/* If vert is already used by another smooth fan, we need a new vert for this one. */
+			const int new_vert_idx = vert_used ? num_verts++ : vert_idx;
+
+			BLI_assert(*lnor_space);
+
+			if ((*lnor_space)->loops) {
+				for (LinkNode *lnode = (*lnor_space)->loops; lnode; lnode = lnode->next) {
+					const int ml_fan_idx = GET_INT_FROM_POINTER(lnode->link);
+					BLI_BITMAP_ENABLE(done_loops, ml_fan_idx);
 					if (vert_used) {
-						ml->v = new_vert_idx;
+						mloop[ml_fan_idx].v = new_vert_idx;
 					}
 				}
-
-				if (!vert_used) {
-					BLI_BITMAP_ENABLE(verts_used, vert_idx);
-					/* We need to update that vertex's normal here, we won't go over it again. */
-					/* This is important! *DO NOT* set vnor to final computed lnor, vnor should always be defined to
-					 * 'automatic normal' value computed from its polys, not some custom normal.
-					 * Fortunately, that's the loop normal space's 'lnor' reference vector. ;) */
-					normal_float_to_short_v3(mvert[vert_idx].no, (*lnor_space)->vec_lnor);
-				}
-				else {
-					/* Add new vert to list. */
-					SplitFaceNewVert *new_vert = BLI_memarena_alloc(memarena, sizeof(*new_vert));
-					new_vert->orig_index = vert_idx;
-					new_vert->new_index = new_vert_idx;
-					new_vert->vnor = (*lnor_space)->vec_lnor;  /* See note above. */
-					new_vert->next = *new_verts;
-					*new_verts = new_vert;
-				}
 			}
-		}
-
-		MEM_freeN(done_loops);
-	}
-	else {
-		/* No loop normal spaces available, we only split out flat polys. */
-		const int num_polys = mesh->totpoly;
-		const MPoly *mpoly = mesh->mpoly;
-
-		/* We do that in two loops, to keep original edges/verts to smooth polys preferencially. */
-		const MPoly *mp = mpoly;
-		for (int i = 0; i < num_polys; i++, mp++) {
-			if (mp->flag & ME_SMOOTH) {
-				const MLoop *ml = &mloop[mp->loopstart];
-				for (int j = 0; j < mp->totloop; j++, ml++) {
-					/* Just mark the vertex as used/reserved, that way neighbor flat polys, if any,
-					 * will have to create their own. */
-					BLI_BITMAP_ENABLE(verts_used, ml->v);
+			else {
+				/* Single loop in this fan... */
+				BLI_BITMAP_ENABLE(done_loops, loop_idx);
+				if (vert_used) {
+					ml->v = new_vert_idx;
 				}
 			}
-		}
 
-		mp = mpoly;
-		for (int i = 0; i < num_polys; i++, mp++) {
-			if (!(mp->flag & ME_SMOOTH)) {
-				MLoop *ml = &mloop[mp->loopstart];
-				for (int j = 0; j < mp->totloop; j++, ml++) {
-					const int vert_idx = ml->v;
-
-					if (BLI_BITMAP_TEST(verts_used, vert_idx)) {
-						/* Add new vert to list. */
-						const int new_vert_idx = num_verts++;
-						ml->v = new_vert_idx;
-
-						SplitFaceNewVert *new_vert = BLI_memarena_alloc(memarena, sizeof(*new_vert));
-						new_vert->orig_index = vert_idx;
-						new_vert->new_index = new_vert_idx;
-						new_vert->vnor = NULL;  /* See note below about normals. */
-						new_vert->next = *new_verts;
-						*new_verts = new_vert;
-					}
-					else {
-						BLI_BITMAP_ENABLE(verts_used, vert_idx);
-					}
-				}
-				/* Note: there is no way to get new normals for smooth vertices here (and we don't have direct access
-				 * to poly normals either for flat ones), so we'll have to recompute all vnors at the end... */
-				*r_need_vnors_recalc = true;
+			if (!vert_used) {
+				BLI_BITMAP_ENABLE(verts_used, vert_idx);
+				/* We need to update that vertex's normal here, we won't go over it again. */
+				/* This is important! *DO NOT* set vnor to final computed lnor, vnor should always be defined to
+				 * 'automatic normal' value computed from its polys, not some custom normal.
+				 * Fortunately, that's the loop normal space's 'lnor' reference vector. ;) */
+				normal_float_to_short_v3(mvert[vert_idx].no, (*lnor_space)->vec_lnor);
+			}
+			else {
+				/* Add new vert to list. */
+				SplitFaceNewVert *new_vert = BLI_memarena_alloc(memarena, sizeof(*new_vert));
+				new_vert->orig_index = vert_idx;
+				new_vert->new_index = new_vert_idx;
+				new_vert->vnor = (*lnor_space)->vec_lnor;  /* See note above. */
+				new_vert->next = *new_verts;
+				*new_verts = new_vert;
 			}
 		}
 	}
 
+	MEM_freeN(done_loops);
 	MEM_freeN(verts_used);
 
 	return num_verts - mesh->totvert;
@@ -2353,27 +2319,17 @@ void BKE_mesh_split_faces(Mesh *mesh, bool free_loop_normals)
 	}
 	BKE_mesh_tessface_clear(mesh);
 
-	MLoopNorSpaceArray *lnors_spacearr = NULL;
-	MemArena *memarena;
-	bool need_vnors_recalc = false;
-
-	if (mesh->flag & ME_AUTOSMOOTH) {
-		lnors_spacearr = MEM_callocN(sizeof(*lnors_spacearr), __func__);
-		/* Compute loop normals and loop normal spaces (a.k.a. smooth fans of faces around vertices). */
-		BKE_mesh_calc_normals_split_ex(mesh, lnors_spacearr);
-		/* Stealing memarena from loop normals space array. */
-		memarena = lnors_spacearr->mem;
-	}
-	else {
-		/* We still have to split out flat faces... */
-		memarena = BLI_memarena_new(BLI_MEMARENA_STD_BUFSIZE, __func__);
-	}
+	MLoopNorSpaceArray lnors_spacearr = {NULL};
+	/* Compute loop normals and loop normal spaces (a.k.a. smooth fans of faces around vertices). */
+	BKE_mesh_calc_normals_split_ex(mesh, &lnors_spacearr);
+	/* Stealing memarena from loop normals space array. */
+	MemArena *memarena = lnors_spacearr.mem;
 
 	SplitFaceNewVert *new_verts = NULL;
 	SplitFaceNewEdge *new_edges = NULL;
 
 	/* Detect loop normal spaces (a.k.a. smooth fans) that will need a new vert. */
-	const int num_new_verts = split_faces_prepare_new_verts(mesh, lnors_spacearr, &new_verts, memarena, &need_vnors_recalc);
+	const int num_new_verts = split_faces_prepare_new_verts(mesh, &lnors_spacearr, &new_verts, memarena);
 
 	if (num_new_verts > 0) {
 		/* Reminder: beyond this point, there is no way out, mesh is in invalid state (due to early-reassignment of
@@ -2385,9 +2341,9 @@ void BKE_mesh_split_faces(Mesh *mesh, bool free_loop_normals)
 
 		/* Reallocate all vert and edge related data. */
 		mesh->totvert += num_new_verts;
-		mesh->totedge += num_new_edges;
 		CustomData_realloc(&mesh->vdata, mesh->totvert);
 		if (do_edges) {
+			mesh->totedge += num_new_edges;
 			CustomData_realloc(&mesh->edata, mesh->totedge);
 		}
 		/* Update pointers to a newly allocated memory. */
@@ -2407,18 +2363,9 @@ void BKE_mesh_split_faces(Mesh *mesh, bool free_loop_normals)
 		CustomData_free_layers(&mesh->ldata, CD_NORMAL, mesh->totloop);
 	}
 
-	if (lnors_spacearr) {
-		/* Also frees new_verts/edges temp data, since we used its memarena to allocate them. */
-		BKE_lnor_spacearr_free(lnors_spacearr);
-		MEM_freeN(lnors_spacearr);
-	}
-	else {
-		BLI_memarena_free(memarena);
-	}
+	/* Also frees new_verts/edges temp data, since we used its memarena to allocate them. */
+	BKE_lnor_spacearr_free(&lnors_spacearr);
 
-	if (need_vnors_recalc) {
-		BKE_mesh_calc_normals(mesh);
-	}
 #ifdef VALIDATE_MESH
 	BKE_mesh_validate(mesh, true, true);
 #endif
@@ -2447,7 +2394,9 @@ Mesh *BKE_mesh_new_from_object(
 			int uv_from_orco;
 
 			/* copies object and modifiers (but not the data) */
-			Object *tmpobj = BKE_object_copy_ex(bmain, ob, true);
+			Object *tmpobj;
+			/* TODO: make it temp copy outside bmain! */
+			BKE_id_copy_ex(bmain, &ob->id, (ID **)&tmpobj, LIB_ID_COPY_CACHES, false);
 			tmpcu = (Curve *)tmpobj->data;
 			id_us_min(&tmpcu->id);
 
diff --git a/source/blender/blenkernel/intern/mesh_evaluate.c b/source/blender/blenkernel/intern/mesh_evaluate.c
index 5dfcef9f9bf..643ca3ee536 100644
--- a/source/blender/blenkernel/intern/mesh_evaluate.c
+++ b/source/blender/blenkernel/intern/mesh_evaluate.c
@@ -2002,11 +2002,14 @@ float BKE_mesh_calc_poly_area(
  * - http://forums.cgsociety.org/archive/index.php?t-756235.html
  * - http://www.globalspec.com/reference/52702/203279/4-8-the-centroid-of-a-tetrahedron
  *
- * \note volume is 6x actual volume, and centroid is 4x actual volume-weighted centroid
- * (so division can be done once at the end)
- * \note results will have bias if polygon is non-planar.
+ * \note
+ * - Volume is 6x actual volume, and centroid is 4x actual volume-weighted centroid
+ *   (so division can be done once at the end).
+ * - Results will have bias if polygon is non-planar.
+ * - The resulting volume will only be correct if the mesh is manifold and has consistent face winding
+ *   (non-contiguous face normals or holes in the mesh surface).
  */
-static float mesh_calc_poly_volume_and_weighted_centroid(
+static float mesh_calc_poly_volume_centroid(
         const MPoly *mpoly, const MLoop *loopstart, const MVert *mvarray,
         float r_cent[3])
 {
@@ -2043,6 +2046,43 @@ static float mesh_calc_poly_volume_and_weighted_centroid(
 	return total_volume;
 }
 
+/**
+ * \note
+ * - Results won't be correct if polygon is non-planar.
+ * - This has the advantage over #mesh_calc_poly_volume_centroid
+ *   that it doesn't depend on solid geometry, instead it weights the surface by volume.
+ */
+static float mesh_calc_poly_area_centroid(
+        const MPoly *mpoly, const MLoop *loopstart, const MVert *mvarray,
+        float r_cent[3])
+{
+	int i;
+	float tri_area;
+	float total_area = 0.0f;
+	float v1[3], v2[3], v3[3], normal[3], tri_cent[3];
+
+	BKE_mesh_calc_poly_normal(mpoly, loopstart, mvarray, normal);
+	copy_v3_v3(v1, mvarray[loopstart[0].v].co);
+	copy_v3_v3(v2, mvarray[loopstart[1].v].co);
+	zero_v3(r_cent);
+
+	for (i = 2; i < mpoly->totloop; i++) {
+		copy_v3_v3(v3, mvarray[loopstart[i].v].co);
+
+		tri_area = area_tri_signed_v3(v1, v2, v3, normal);
+		total_area += tri_area;
+
+		mid_v3_v3v3v3(tri_cent, v1, v2, v3);
+		madd_v3_v3fl(r_cent, tri_cent, tri_area);
+
+		copy_v3_v3(v2, v3);
+	}
+
+	mul_v3_fl(r_cent, 1.0f / total_area);
+
+	return total_area;
+}
+
 #if 0 /* slow version of the function below */
 void BKE_mesh_calc_poly_angles(MPoly *mpoly, MLoop *loopstart,
                                MVert *mvarray, float angles[])
@@ -2157,7 +2197,40 @@ bool BKE_mesh_center_bounds(const Mesh *me, float r_cent[3])
 	return false;
 }
 
-bool BKE_mesh_center_centroid(const Mesh *me, float r_cent[3])
+bool BKE_mesh_center_of_surface(const Mesh *me, float r_cent[3])
+{
+	int i = me->totpoly;
+	MPoly *mpoly;
+	float poly_area;
+	float total_area = 0.0f;
+	float poly_cent[3];
+
+	zero_v3(r_cent);
+
+	/* calculate a weighted average of polygon centroids */
+	for (mpoly = me->mpoly; i--; mpoly++) {
+		poly_area = mesh_calc_poly_area_centroid(mpoly, me->mloop + mpoly->loopstart, me->mvert, poly_cent);
+
+		madd_v3_v3fl(r_cent, poly_cent, poly_area);
+		total_area += poly_area;
+	}
+	/* otherwise we get NAN for 0 polys */
+	if (me->totpoly) {
+		mul_v3_fl(r_cent, 1.0f / total_area);
+	}
+
+	/* zero area faces cause this, fallback to median */
+	if (UNLIKELY(!is_finite_v3(r_cent))) {
+		return BKE_mesh_center_median(me, r_cent);
+	}
+
+	return (me->totpoly != 0);
+}
+
+/**
+ * \note Mesh must be manifold with consistent face-winding, see #mesh_calc_poly_volume_centroid for details.
+ */
+bool BKE_mesh_center_of_volume(const Mesh *me, float r_cent[3])
 {
 	int i = me->totpoly;
 	MPoly *mpoly;
@@ -2169,7 +2242,7 @@ bool BKE_mesh_center_centroid(const Mesh *me, float r_cent[3])
 
 	/* calculate a weighted average of polyhedron centroids */
 	for (mpoly = me->mpoly; i--; mpoly++) {
-		poly_volume = mesh_calc_poly_volume_and_weighted_centroid(mpoly, me->mloop + mpoly->loopstart, me->mvert, poly_cent);
+		poly_volume = mesh_calc_poly_volume_centroid(mpoly, me->mloop + mpoly->loopstart, me->mvert, poly_cent);
 
 		/* poly_cent is already volume-weighted, so no need to multiply by the volume */
 		add_v3_v3(r_cent, poly_cent);
@@ -2189,6 +2262,7 @@ bool BKE_mesh_center_centroid(const Mesh *me, float r_cent[3])
 
 	return (me->totpoly != 0);
 }
+
 /** \} */
 
 
diff --git a/source/blender/blenkernel/intern/mesh_remap.c b/source/blender/blenkernel/intern/mesh_remap.c
index c5fa9b15896..d2fe8f27f4a 100644
--- a/source/blender/blenkernel/intern/mesh_remap.c
+++ b/source/blender/blenkernel/intern/mesh_remap.c
@@ -1184,7 +1184,6 @@ void BKE_mesh_remap_calc_loops_from_dm(
 		bool polys_allocated_src;
 		MPoly *polys_src = DM_get_poly_array(dm_src, &polys_allocated_src);
 		const int num_polys_src = dm_src->getNumPolys(dm_src);
-		bool looptri_allocated_src = false;
 		const MLoopTri *looptri_src = NULL;
 		int num_looptri_src = 0;
 
@@ -1374,17 +1373,11 @@ void BKE_mesh_remap_calc_loops_from_dm(
 				if (dirty_tess_flag) {
 					dm_src->dirty &= ~dirty_tess_flag;
 				}
-				DM_ensure_looptri(dm_src);
 				if (dirty_tess_flag) {
 					dm_src->dirty |= dirty_tess_flag;
 				}
 
-				looptri_src = DM_get_looptri_array(
-				        dm_src,
-				        verts_src,
-				        polys_src, num_polys_src,
-				        loops_src, num_loops_src,
-				        &looptri_allocated_src);
+				looptri_src = dm_src->getLoopTriArray(dm_src);
 				num_looptri_src = dm_src->getNumLoopTri(dm_src);
 				looptri_active = BLI_BITMAP_NEW((size_t)num_looptri_src, __func__);
 
@@ -1403,7 +1396,7 @@ void BKE_mesh_remap_calc_loops_from_dm(
 					        &treedata[tindex],
 					        verts_src, verts_allocated_src,
 					        loops_src, loops_allocated_src,
-					        looptri_src, num_looptri_src, looptri_allocated_src,
+					        looptri_src, num_looptri_src, false,
 					        looptri_active, num_looptri_active, bvh_epsilon, 2, 6);
 					if (verts_allocated_src) {
 						verts_allocated_src = false;  /* Only 'give' our verts once, to first tree! */
@@ -1411,9 +1404,6 @@ void BKE_mesh_remap_calc_loops_from_dm(
 					if (loops_allocated_src) {
 						loops_allocated_src = false;  /* Only 'give' our loops once, to first tree! */
 					}
-					if (looptri_allocated_src) {
-						looptri_allocated_src = false;  /* Only 'give' our looptri once, to first tree! */
-					}
 				}
 
 				MEM_freeN(looptri_active);
@@ -1928,9 +1918,6 @@ void BKE_mesh_remap_calc_loops_from_dm(
 		if (polys_allocated_src) {
 			MEM_freeN(polys_src);
 		}
-		if (looptri_allocated_src) {
-			MEM_freeN((void *)looptri_src);
-		}
 		if (vert_to_loop_map_src) {
 			MEM_freeN(vert_to_loop_map_src);
 		}
diff --git a/source/blender/blenkernel/intern/modifier.c b/source/blender/blenkernel/intern/modifier.c
index 2276d56b9c6..118bafa94d2 100644
--- a/source/blender/blenkernel/intern/modifier.c
+++ b/source/blender/blenkernel/intern/modifier.c
@@ -59,6 +59,8 @@
 
 #include "BKE_appdir.h"
 #include "BKE_key.h"
+#include "BKE_library.h"
+#include "BKE_library_query.h"
 #include "BKE_multires.h"
 #include "BKE_DerivedMesh.h"
 
@@ -269,14 +271,37 @@ void modifier_copyData_generic(const ModifierData *md_src, ModifierData *md_dst)
 	memcpy(md_dst_data, md_src_data, (size_t)mti->structSize - data_size);
 }
 
-void modifier_copyData(ModifierData *md, ModifierData *target)
+static void modifier_copy_data_id_us_cb(void *UNUSED(userData), Object *UNUSED(ob), ID **idpoin, int cb_flag)
+{
+	ID *id = *idpoin;
+	if (id != NULL && (cb_flag & IDWALK_CB_USER) != 0) {
+		id_us_plus(id);
+	}
+}
+
+void modifier_copyData_ex(ModifierData *md, ModifierData *target, const int flag)
 {
 	const ModifierTypeInfo *mti = modifierType_getInfo(md->type);
 
 	target->mode = md->mode;
 
-	if (mti->copyData)
+	if (mti->copyData) {
 		mti->copyData(md, target);
+	}
+
+	if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
+		if (mti->foreachIDLink) {
+			mti->foreachIDLink(target, NULL, modifier_copy_data_id_us_cb, NULL);
+		}
+		else if (mti->foreachObjectLink) {
+			mti->foreachObjectLink(target, NULL, (ObjectWalkFunc)modifier_copy_data_id_us_cb, NULL);
+		}
+	}
+}
+
+void modifier_copyData(ModifierData *md, ModifierData *target)
+{
+	modifier_copyData_ex(md, target, 0);
 }
 
 
diff --git a/source/blender/blenkernel/intern/movieclip.c b/source/blender/blenkernel/intern/movieclip.c
index dfa8742a295..16d597e25fa 100644
--- a/source/blender/blenkernel/intern/movieclip.c
+++ b/source/blender/blenkernel/intern/movieclip.c
@@ -588,7 +588,7 @@ static MovieClip *movieclip_alloc(Main *bmain, const char *name)
 {
 	MovieClip *clip;
 
-	clip = BKE_libblock_alloc(bmain, ID_MC, name);
+	clip = BKE_libblock_alloc(bmain, ID_MC, name, 0);
 
 	clip->aspx = clip->aspy = 1.0f;
 
@@ -1488,25 +1488,33 @@ void BKE_movieclip_free(MovieClip *clip)
 	BKE_animdata_free((ID *) clip, false);
 }
 
-MovieClip *BKE_movieclip_copy(Main *bmain, const MovieClip *clip)
+/**
+ * Only copy internal data of MovieClip ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_movieclip_copy_data(Main *UNUSED(bmain), MovieClip *clip_dst, const MovieClip *clip_src, const int flag)
 {
-	MovieClip *clip_new;
-
-	clip_new = BKE_libblock_copy(bmain, &clip->id);
+	/* We never handle usercount here for own data. */
+	const int flag_subdata = flag | LIB_ID_CREATE_NO_USER_REFCOUNT;
 
-	clip_new->anim = NULL;
-	clip_new->cache = NULL;
+	clip_dst->anim = NULL;
+	clip_dst->cache = NULL;
 
-	BKE_tracking_copy(&clip_new->tracking, &clip->tracking);
-	clip_new->tracking_context = NULL;
+	BKE_tracking_copy(&clip_dst->tracking, &clip_src->tracking, flag_subdata);
+	clip_dst->tracking_context = NULL;
 
-	id_us_plus((ID *)clip_new->gpd);
-
-	BKE_color_managed_colorspace_settings_copy(&clip_new->colorspace_settings, &clip->colorspace_settings);
-
-	BKE_id_copy_ensure_local(bmain, &clip->id, &clip_new->id);
+	BKE_color_managed_colorspace_settings_copy(&clip_dst->colorspace_settings, &clip_src->colorspace_settings);
+}
 
-	return clip_new;
+MovieClip *BKE_movieclip_copy(Main *bmain, const MovieClip *clip)
+{
+	MovieClip *clip_copy;
+	BKE_id_copy_ex(bmain, &clip->id, (ID **)&clip_copy, 0, false);
+	return clip_copy;
 }
 
 void BKE_movieclip_make_local(Main *bmain, MovieClip *clip, const bool lib_local)
diff --git a/source/blender/blenkernel/intern/node.c b/source/blender/blenkernel/intern/node.c
index 5acfe4a0aa4..54afe76ec07 100644
--- a/source/blender/blenkernel/intern/node.c
+++ b/source/blender/blenkernel/intern/node.c
@@ -902,80 +902,100 @@ bNode *nodeAddStaticNode(const struct bContext *C, bNodeTree *ntree, int type)
 	return nodeAddNode(C, ntree, idname);
 }
 
-static void node_socket_copy(bNodeSocket *dst, bNodeSocket *src)
+static void node_socket_copy(bNodeSocket *sock_dst, bNodeSocket *sock_src, const int flag)
 {
-	src->new_sock = dst;
-	
-	if (src->prop)
-		dst->prop = IDP_CopyProperty(src->prop);
-	
-	if (src->default_value)
-		dst->default_value = MEM_dupallocN(src->default_value);
-	
-	dst->stack_index = 0;
+	sock_src->new_sock = sock_dst;
+
+	if (sock_src->prop) {
+		sock_dst->prop = IDP_CopyProperty_ex(sock_src->prop, flag);
+	}
+
+	if (sock_src->default_value) {
+		sock_dst->default_value = MEM_dupallocN(sock_src->default_value);
+	}
+
+	sock_dst->stack_index = 0;
 	/* XXX some compositor node (e.g. image, render layers) still store
 	 * some persistent buffer data here, need to clear this to avoid dangling pointers.
 	 */
-	dst->cache = NULL;
+	sock_dst->cache = NULL;
 }
 
 /* keep socket listorder identical, for copying links */
 /* ntree is the target tree */
-bNode *nodeCopyNode(bNodeTree *ntree, bNode *node)
+bNode *BKE_node_copy_ex(bNodeTree *ntree, bNode *node_src, const int flag)
 {
-	bNode *nnode = MEM_callocN(sizeof(bNode), "dupli node");
-	bNodeSocket *sock, *oldsock;
-	bNodeLink *link, *oldlink;
+	bNode *node_dst = MEM_callocN(sizeof(bNode), "dupli node");
+	bNodeSocket *sock_dst, *sock_src;
+	bNodeLink *link_dst, *link_src;
 
-	*nnode = *node;
+	*node_dst = *node_src;
 	/* can be called for nodes outside a node tree (e.g. clipboard) */
 	if (ntree) {
-		nodeUniqueName(ntree, nnode);
+		nodeUniqueName(ntree, node_dst);
 
-		BLI_addtail(&ntree->nodes, nnode);
+		BLI_addtail(&ntree->nodes, node_dst);
 	}
 
-	BLI_duplicatelist(&nnode->inputs, &node->inputs);
-	oldsock = node->inputs.first;
-	for (sock = nnode->inputs.first; sock; sock = sock->next, oldsock = oldsock->next)
-		node_socket_copy(sock, oldsock);
-	
-	BLI_duplicatelist(&nnode->outputs, &node->outputs);
-	oldsock = node->outputs.first;
-	for (sock = nnode->outputs.first; sock; sock = sock->next, oldsock = oldsock->next)
-		node_socket_copy(sock, oldsock);
-	
-	if (node->prop)
-		nnode->prop = IDP_CopyProperty(node->prop);
-	
-	BLI_duplicatelist(&nnode->internal_links, &node->internal_links);
-	oldlink = node->internal_links.first;
-	for (link = nnode->internal_links.first; link; link = link->next, oldlink = oldlink->next) {
-		link->fromnode = nnode;
-		link->tonode = nnode;
-		link->fromsock = link->fromsock->new_sock;
-		link->tosock = link->tosock->new_sock;
+	BLI_duplicatelist(&node_dst->inputs, &node_src->inputs);
+	for (sock_dst = node_dst->inputs.first, sock_src = node_src->inputs.first;
+	     sock_dst != NULL;
+	     sock_dst = sock_dst->next, sock_src = sock_src->next)
+	{
+		node_socket_copy(sock_dst, sock_src, flag);
 	}
-	
-	/* don't increase node->id users, freenode doesn't decrement either */
-	
-	if (node->typeinfo->copyfunc)
-		node->typeinfo->copyfunc(ntree, nnode, node);
-	
-	node->new_node = nnode;
-	nnode->new_node = NULL;
-	
-	if (nnode->typeinfo->copyfunc_api) {
+
+	BLI_duplicatelist(&node_dst->outputs, &node_src->outputs);
+	for (sock_dst = node_dst->outputs.first, sock_src = node_src->outputs.first;
+	     sock_dst != NULL;
+	     sock_dst = sock_dst->next, sock_src = sock_src->next)
+	{
+		node_socket_copy(sock_dst, sock_src, flag);
+	}
+
+	if (node_src->prop) {
+		node_dst->prop = IDP_CopyProperty_ex(node_src->prop, flag);
+	}
+
+	BLI_duplicatelist(&node_dst->internal_links, &node_src->internal_links);
+	for (link_dst = node_dst->internal_links.first, link_src = node_src->internal_links.first;
+	     link_dst != NULL;
+	     link_dst = link_dst->next, link_src = link_src->next)
+	{
+		link_dst->fromnode = node_dst;
+		link_dst->tonode = node_dst;
+		link_dst->fromsock = link_dst->fromsock->new_sock;
+		link_dst->tosock = link_dst->tosock->new_sock;
+	}
+
+	if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
+		id_us_plus(node_dst->id);
+	}
+
+	if (node_src->typeinfo->copyfunc) {
+		node_src->typeinfo->copyfunc(ntree, node_dst, node_src);
+	}
+
+	node_src->new_node = node_dst;
+	node_dst->new_node = NULL;
+
+	if (node_dst->typeinfo->copyfunc_api) {
 		PointerRNA ptr;
-		RNA_pointer_create((ID *)ntree, &RNA_Node, nnode, &ptr);
-		
-		nnode->typeinfo->copyfunc_api(&ptr, node);
+		RNA_pointer_create((ID *)ntree, &RNA_Node, node_dst, &ptr);
+
+		node_dst->typeinfo->copyfunc_api(&ptr, node_src);
 	}
-	
-	if (ntree)
+
+	if (ntree) {
 		ntree->update |= NTREE_UPDATE_NODES;
-	
-	return nnode;
+	}
+
+	return node_dst;
+}
+
+bNode *nodeCopyNode(bNodeTree *ntree, bNode *node)
+{
+	return BKE_node_copy_ex(ntree, node, LIB_ID_CREATE_NO_USER_REFCOUNT);
 }
 
 /* also used via rna api, so we check for proper input output direction */
@@ -1172,7 +1192,7 @@ bNodeTree *ntreeAddTree(Main *bmain, const char *name, const char *idname)
 	 * node groups and other tree types are created as library data.
 	 */
 	if (bmain) {
-		ntree = BKE_libblock_alloc(bmain, ID_NT, name);
+		ntree = BKE_libblock_alloc(bmain, ID_NT, name, 0);
 	}
 	else {
 		ntree = MEM_callocN(sizeof(bNodeTree), "new node tree");
@@ -1191,119 +1211,96 @@ bNodeTree *ntreeAddTree(Main *bmain, const char *name, const char *idname)
 	return ntree;
 }
 
-/* Warning: this function gets called during some rather unexpected times
- *	- this gets called when executing compositing updates (for threaded previews)
- *	- when the nodetree datablock needs to be copied (i.e. when users get copied)
- *	- for scene duplication use ntreeSwapID() after so we don't have stale pointers.
+/**
+ * Only copy internal data of NodeTree ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
  *
- * do_make_extern: keep enabled for general use, only reason _not_ to enable is when
- * copying for internal use (threads for eg), where you wont want it to modify the
- * scene data.
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
  */
-static bNodeTree *ntreeCopyTree_internal(
-        const bNodeTree *ntree, Main *bmain,
-        bool skip_database, bool do_id_user, bool do_make_extern, bool copy_previews)
+void BKE_node_tree_copy_data(Main *UNUSED(bmain), bNodeTree *ntree_dst, const bNodeTree *ntree_src, const int flag)
 {
-	bNodeTree *newtree;
-	bNode *node /*, *nnode */ /* UNUSED */, *last;
-	bNodeSocket *sock, *oldsock;
-	bNodeLink *link;
-	
-	if (ntree == NULL) return NULL;
-	
-	/* is ntree part of library? */
-	if (bmain && !skip_database && BLI_findindex(&bmain->nodetree, ntree) >= 0) {
-		newtree = BKE_libblock_copy(bmain, &ntree->id);
-	}
-	else {
-		newtree = BKE_libblock_copy_nolib(&ntree->id, true);
-	}
+	bNodeSocket *sock_dst, *sock_src;
+	bNodeLink *link_dst;
 
-	id_us_plus((ID *)newtree->gpd);
+	/* We never handle usercount here for own data. */
+	const int flag_subdata = flag | LIB_ID_CREATE_NO_USER_REFCOUNT;
 
 	/* in case a running nodetree is copied */
-	newtree->execdata = NULL;
-
-	newtree->duplilock = NULL;
-	
-	BLI_listbase_clear(&newtree->nodes);
-	BLI_listbase_clear(&newtree->links);
-	
-	last = ntree->nodes.last;
-	for (node = ntree->nodes.first; node; node = node->next) {
+	ntree_dst->execdata = NULL;
 
-		/* ntreeUserDecrefID inline */
-		if (do_id_user) {
-			id_us_plus(node->id);
-		}
+	ntree_dst->duplilock = NULL;
 
-		if (do_make_extern) {
-			id_lib_extern(node->id);
-		}
+	BLI_listbase_clear(&ntree_dst->nodes);
+	BLI_listbase_clear(&ntree_dst->links);
 
-		node->new_node = NULL;
-		/* nnode = */ nodeCopyNode(newtree, node);   /* sets node->new */
-		
-		/* make sure we don't copy new nodes again! */
-		if (node == last)
-			break;
+	for (bNode *node_src = ntree_src->nodes.first; node_src; node_src = node_src->next) {
+		BKE_node_copy_ex(ntree_dst, node_src, flag_subdata);
 	}
-	
+
 	/* copy links */
-	BLI_duplicatelist(&newtree->links, &ntree->links);
-	for (link = newtree->links.first; link; link = link->next) {
-		link->fromnode = (link->fromnode ? link->fromnode->new_node : NULL);
-		link->fromsock = (link->fromsock ? link->fromsock->new_sock : NULL);
-		link->tonode = (link->tonode ? link->tonode->new_node : NULL);
-		link->tosock = (link->tosock ? link->tosock->new_sock : NULL);
+	BLI_duplicatelist(&ntree_dst->links, &ntree_src->links);
+	for (link_dst = ntree_dst->links.first; link_dst; link_dst = link_dst->next) {
+		link_dst->fromnode = (link_dst->fromnode ? link_dst->fromnode->new_node : NULL);
+		link_dst->fromsock = (link_dst->fromsock ? link_dst->fromsock->new_sock : NULL);
+		link_dst->tonode = (link_dst->tonode ? link_dst->tonode->new_node : NULL);
+		link_dst->tosock = (link_dst->tosock ? link_dst->tosock->new_sock : NULL);
 		/* update the link socket's pointer */
-		if (link->tosock)
-			link->tosock->link = link;
+		if (link_dst->tosock) {
+			link_dst->tosock->link = link_dst;
+		}
 	}
-	
+
 	/* copy interface sockets */
-	BLI_duplicatelist(&newtree->inputs, &ntree->inputs);
-	oldsock = ntree->inputs.first;
-	for (sock = newtree->inputs.first; sock; sock = sock->next, oldsock = oldsock->next)
-		node_socket_copy(sock, oldsock);
-	
-	BLI_duplicatelist(&newtree->outputs, &ntree->outputs);
-	oldsock = ntree->outputs.first;
-	for (sock = newtree->outputs.first; sock; sock = sock->next, oldsock = oldsock->next)
-		node_socket_copy(sock, oldsock);
-	
+	BLI_duplicatelist(&ntree_dst->inputs, &ntree_src->inputs);
+	for (sock_dst = ntree_dst->inputs.first, sock_src = ntree_src->inputs.first;
+	     sock_dst != NULL;
+	     sock_dst = sock_dst->next, sock_src = sock_src->next)
+	{
+		node_socket_copy(sock_dst, sock_src, flag_subdata);
+	}
+
+	BLI_duplicatelist(&ntree_dst->outputs, &ntree_src->outputs);
+	for (sock_dst = ntree_dst->outputs.first, sock_src = ntree_src->outputs.first;
+	     sock_dst != NULL;
+	     sock_dst = sock_dst->next, sock_src = sock_src->next)
+	{
+		node_socket_copy(sock_dst, sock_src, flag_subdata);
+	}
+
 	/* copy preview hash */
-	if (ntree->previews && copy_previews) {
+	if (ntree_src->previews && (flag & LIB_ID_COPY_NO_PREVIEW) == 0) {
 		bNodeInstanceHashIterator iter;
-		
-		newtree->previews = BKE_node_instance_hash_new("node previews");
-		
-		NODE_INSTANCE_HASH_ITER(iter, ntree->previews) {
+
+		ntree_dst->previews = BKE_node_instance_hash_new("node previews");
+
+		NODE_INSTANCE_HASH_ITER(iter, ntree_src->previews) {
 			bNodeInstanceKey key = BKE_node_instance_hash_iterator_get_key(&iter);
 			bNodePreview *preview = BKE_node_instance_hash_iterator_get_value(&iter);
-			BKE_node_instance_hash_insert(newtree->previews, key, BKE_node_preview_copy(preview));
+			BKE_node_instance_hash_insert(ntree_dst->previews, key, BKE_node_preview_copy(preview));
 		}
 	}
-	else
-		newtree->previews = NULL;
-	
+	else {
+		ntree_dst->previews = NULL;
+	}
+
 	/* update node->parent pointers */
-	for (node = newtree->nodes.first; node; node = node->next) {
-		if (node->parent)
-			node->parent = node->parent->new_node;
+	for (bNode *node_dst = ntree_dst->nodes.first, *node_src = ntree_src->nodes.first; node_dst; node_dst = node_dst->next, node_src = node_src->next) {
+		if (node_dst->parent) {
+			node_dst->parent = node_dst->parent->new_node;
+		}
 	}
-	
-	/* node tree will generate its own interface type */
-	newtree->interface_type = NULL;
-	
-	BKE_id_copy_ensure_local(bmain, &ntree->id, &newtree->id);
 
-	return newtree;
+	/* node tree will generate its own interface type */
+	ntree_dst->interface_type = NULL;
 }
 
 bNodeTree *ntreeCopyTree_ex(const bNodeTree *ntree, Main *bmain, const bool do_id_user)
 {
-	return ntreeCopyTree_internal(ntree, bmain, false, do_id_user, true, true);
+	bNodeTree *ntree_copy;
+	BKE_id_copy_ex(bmain, (ID *)ntree, (ID **)&ntree_copy, do_id_user ? 0 : LIB_ID_CREATE_NO_USER_REFCOUNT, false);
+	return ntree_copy;
 }
 bNodeTree *ntreeCopyTree(Main *bmain, const bNodeTree *ntree)
 {
@@ -1994,10 +1991,11 @@ bNodeTree *ntreeLocalize(bNodeTree *ntree)
 			adt->tmpact = NULL;
 		}
 
-		/* Make full copy.
+		/* Make full copy outside of Main database.
 		 * Note: previews are not copied here.
 		 */
-		ltree = ntreeCopyTree_internal(ntree, G.main, true, false, false, false);
+		BKE_id_copy_ex(G.main, (ID *)ntree, (ID **)&ltree,
+		               LIB_ID_CREATE_NO_MAIN | LIB_ID_CREATE_NO_USER_REFCOUNT | LIB_ID_COPY_NO_PREVIEW, false);
 		ltree->flag |= NTREE_IS_LOCALIZED;
 
 		for (node = ltree->nodes.first; node; node = node->next) {
@@ -2237,7 +2235,7 @@ static void ntree_interface_type_create(bNodeTree *ntree)
 	/* register a subtype of PropertyGroup */
 	srna = RNA_def_struct_ptr(&BLENDER_RNA, identifier, &RNA_PropertyGroup);
 	RNA_def_struct_ui_text(srna, name, description);
-	RNA_def_struct_duplicate_pointers(srna);
+	RNA_def_struct_duplicate_pointers(&BLENDER_RNA, srna);
 	
 	/* associate the RNA type with the node tree */
 	ntree->interface_type = srna;
@@ -2276,10 +2274,10 @@ StructRNA *ntreeInterfaceTypeGet(bNodeTree *ntree, int create)
 			ntree_interface_identifier(ntree, base, identifier, sizeof(identifier), name, description);
 			
 			/* rename the RNA type */
-			RNA_def_struct_free_pointers(srna);
-			RNA_def_struct_identifier(srna, identifier);
+			RNA_def_struct_free_pointers(&BLENDER_RNA, srna);
+			RNA_def_struct_identifier(&BLENDER_RNA, srna, identifier);
 			RNA_def_struct_ui_text(srna, name, description);
-			RNA_def_struct_duplicate_pointers(srna);
+			RNA_def_struct_duplicate_pointers(&BLENDER_RNA, srna);
 		}
 	}
 	else if (create) {
diff --git a/source/blender/blenkernel/intern/object.c b/source/blender/blenkernel/intern/object.c
index f3086396c3a..44058c989ff 100644
--- a/source/blender/blenkernel/intern/object.c
+++ b/source/blender/blenkernel/intern/object.c
@@ -312,7 +312,7 @@ void BKE_object_link_modifiers(struct Object *ob_dst, const struct Object *ob_sr
 		modifier_unique_name(&ob_dst->modifiers, nmd);
 	}
 
-	BKE_object_copy_particlesystems(ob_dst, ob_src);
+	BKE_object_copy_particlesystems(ob_dst, ob_src, 0);
 
 	/* TODO: smoke?, cloth? */
 }
@@ -330,14 +330,14 @@ void BKE_object_free_derived_caches(Object *ob)
 		Mesh *me = ob->data;
 
 		if (me && me->bb) {
-			atomic_fetch_and_or_uint32((uint*)&me->bb->flag, BOUNDBOX_DIRTY);
+			atomic_fetch_and_or_uint32((uint *)&me->bb->flag, BOUNDBOX_DIRTY);
 		}
 	}
 	else if (ELEM(ob->type, OB_SURF, OB_CURVE, OB_FONT)) {
 		Curve *cu = ob->data;
 
 		if (cu && cu->bb) {
-			atomic_fetch_and_or_uint32((uint*)&cu->bb->flag, BOUNDBOX_DIRTY);
+			atomic_fetch_and_or_uint32((uint *)&cu->bb->flag, BOUNDBOX_DIRTY);
 		}
 	}
 
@@ -670,7 +670,7 @@ Object *BKE_object_add_only_object(Main *bmain, int type, const char *name)
 	if (!name)
 		name = get_obdata_defname(type);
 
-	ob = BKE_libblock_alloc(bmain, ID_OB, name);
+	ob = BKE_libblock_alloc(bmain, ID_OB, name, 0);
 
 	/* default object vars */
 	ob->type = type;
@@ -837,7 +837,7 @@ struct Object *BKE_object_lod_matob_get(Object *ob, Scene *scene)
 #endif  /* WITH_GAMEENGINE */
 
 
-SoftBody *copy_softbody(const SoftBody *sb, bool copy_caches)
+SoftBody *copy_softbody(const SoftBody *sb, const int flag)
 {
 	SoftBody *sbn;
 	
@@ -845,7 +845,7 @@ SoftBody *copy_softbody(const SoftBody *sb, bool copy_caches)
 	
 	sbn = MEM_dupallocN(sb);
 
-	if (copy_caches == false) {
+	if ((flag & LIB_ID_COPY_CACHES) == 0) {
 		sbn->totspring = sbn->totpoint = 0;
 		sbn->bpoint = NULL;
 		sbn->bspring = NULL;
@@ -874,7 +874,7 @@ SoftBody *copy_softbody(const SoftBody *sb, bool copy_caches)
 	
 	sbn->scratch = NULL;
 
-	sbn->pointcache = BKE_ptcache_copy_list(&sbn->ptcaches, &sb->ptcaches, copy_caches);
+	sbn->pointcache = BKE_ptcache_copy_list(&sbn->ptcaches, &sb->ptcaches, flag);
 
 	if (sb->effector_weights)
 		sbn->effector_weights = MEM_dupallocN(sb->effector_weights);
@@ -882,7 +882,7 @@ SoftBody *copy_softbody(const SoftBody *sb, bool copy_caches)
 	return sbn;
 }
 
-BulletSoftBody *copy_bulletsoftbody(const BulletSoftBody *bsb)
+BulletSoftBody *copy_bulletsoftbody(const BulletSoftBody *bsb, const int UNUSED(flag))
 {
 	BulletSoftBody *bsbn;
 
@@ -893,7 +893,7 @@ BulletSoftBody *copy_bulletsoftbody(const BulletSoftBody *bsb)
 	return bsbn;
 }
 
-ParticleSystem *BKE_object_copy_particlesystem(ParticleSystem *psys)
+ParticleSystem *BKE_object_copy_particlesystem(ParticleSystem *psys, const int flag)
 {
 	ParticleSystem *psysn;
 	ParticleData *pa;
@@ -930,7 +930,7 @@ ParticleSystem *BKE_object_copy_particlesystem(ParticleSystem *psys)
 
 	if (psys->clmd) {
 		psysn->clmd = (ClothModifierData *)modifier_new(eModifierType_Cloth);
-		modifier_copyData((ModifierData *)psys->clmd, (ModifierData *)psysn->clmd);
+		modifier_copyData_ex((ModifierData *)psys->clmd, (ModifierData *)psysn->clmd, flag);
 		psys->hair_in_dm = psys->hair_out_dm = NULL;
 	}
 
@@ -948,7 +948,8 @@ ParticleSystem *BKE_object_copy_particlesystem(ParticleSystem *psys)
 	BLI_listbase_clear(&psysn->childcachebufs);
 	psysn->renderdata = NULL;
 	
-	psysn->pointcache = BKE_ptcache_copy_list(&psysn->ptcaches, &psys->ptcaches, false);
+	/* XXX Never copy caches here? */
+	psysn->pointcache = BKE_ptcache_copy_list(&psysn->ptcaches, &psys->ptcaches, flag & ~LIB_ID_COPY_CACHES);
 
 	/* XXX - from reading existing code this seems correct but intended usage of
 	 * pointcache should /w cloth should be added in 'ParticleSystem' - campbell */
@@ -956,12 +957,14 @@ ParticleSystem *BKE_object_copy_particlesystem(ParticleSystem *psys)
 		psysn->clmd->point_cache = psysn->pointcache;
 	}
 
-	id_us_plus((ID *)psysn->part);
+	if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
+		id_us_plus((ID *)psysn->part);
+	}
 
 	return psysn;
 }
 
-void BKE_object_copy_particlesystems(Object *ob_dst, const Object *ob_src)
+void BKE_object_copy_particlesystems(Object *ob_dst, const Object *ob_src, const int flag)
 {
 	ParticleSystem *psys, *npsys;
 	ModifierData *md;
@@ -973,7 +976,7 @@ void BKE_object_copy_particlesystems(Object *ob_dst, const Object *ob_src)
 
 	BLI_listbase_clear(&ob_dst->particlesystem);
 	for (psys = ob_src->particlesystem.first; psys; psys = psys->next) {
-		npsys = BKE_object_copy_particlesystem(psys);
+		npsys = BKE_object_copy_particlesystem(psys, flag);
 
 		BLI_addtail(&ob_dst->particlesystem, npsys);
 
@@ -1010,23 +1013,25 @@ void BKE_object_copy_softbody(Object *ob_dst, const Object *ob_src)
 {
 	if (ob_src->soft) {
 		ob_dst->softflag = ob_src->softflag;
-		ob_dst->soft = copy_softbody(ob_src->soft, false);
+		ob_dst->soft = copy_softbody(ob_src->soft, 0);
 	}
 }
 
-static void copy_object_pose(Object *obn, const Object *ob)
+static void copy_object_pose(Object *obn, const Object *ob, const int flag)
 {
 	bPoseChannel *chan;
 	
 	/* note: need to clear obn->pose pointer first, so that BKE_pose_copy_data works (otherwise there's a crash) */
 	obn->pose = NULL;
-	BKE_pose_copy_data(&obn->pose, ob->pose, 1);    /* 1 = copy constraints */
+	BKE_pose_copy_data_ex(&obn->pose, ob->pose, flag, true);  /* true = copy constraints */
 
 	for (chan = obn->pose->chanbase.first; chan; chan = chan->next) {
 		bConstraint *con;
 		
 		chan->flag &= ~(POSE_LOC | POSE_ROT | POSE_SIZE);
 		
+		/* XXX Remapping object pointing onto itself should be handled by generic BKE_library_remap stuff, but...
+		 *     the flush_constraint_targets callback am not sure about, so will delay that for now. */
 		for (con = chan->constraints.first; con; con = con->next) {
 			const bConstraintTypeInfo *cti = BKE_constraint_typeinfo_get(con);
 			ListBase targets = {NULL, NULL};
@@ -1047,13 +1052,10 @@ static void copy_object_pose(Object *obn, const Object *ob)
 	}
 }
 
-static void copy_object_lod(Object *obn, const Object *ob)
+static void copy_object_lod(Object *obn, const Object *ob, const int UNUSED(flag))
 {
 	BLI_duplicatelist(&obn->lodlevels, &ob->lodlevels);
 
-	if (obn->lodlevels.first)
-		((LodLevel *)obn->lodlevels.first)->source = obn;
-
 	obn->currentlod = (LodLevel *)obn->lodlevels.first;
 }
 
@@ -1098,98 +1100,99 @@ void BKE_object_transform_copy(Object *ob_tar, const Object *ob_src)
 	copy_v3_v3(ob_tar->size, ob_src->size);
 }
 
-Object *BKE_object_copy_ex(Main *bmain, const Object *ob, bool copy_caches)
+/**
+ * Only copy internal data of Object ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_object_copy_data(Main *UNUSED(bmain), Object *ob_dst, const Object *ob_src, const int flag)
 {
-	Object *obn;
 	ModifierData *md;
-	int a;
 
-	obn = BKE_libblock_copy(bmain, &ob->id);
-	
-	if (ob->totcol) {
-		obn->mat = MEM_dupallocN(ob->mat);
-		obn->matbits = MEM_dupallocN(ob->matbits);
-		obn->totcol = ob->totcol;
+	/* We never handle usercount here for own data. */
+	const int flag_subdata = flag | LIB_ID_CREATE_NO_USER_REFCOUNT;
+
+	if (ob_src->totcol) {
+		ob_dst->mat = MEM_dupallocN(ob_src->mat);
+		ob_dst->matbits = MEM_dupallocN(ob_src->matbits);
+		ob_dst->totcol = ob_src->totcol;
 	}
 
-	if (ob->iuser) obn->iuser = MEM_dupallocN(ob->iuser);
+	if (ob_src->iuser) ob_dst->iuser = MEM_dupallocN(ob_src->iuser);
 	
-	if (ob->bb) obn->bb = MEM_dupallocN(ob->bb);
-	obn->flag &= ~OB_FROMGROUP;
+	if (ob_src->bb) ob_dst->bb = MEM_dupallocN(ob_src->bb);
+	ob_dst->flag &= ~OB_FROMGROUP;
 	
-	BLI_listbase_clear(&obn->modifiers);
+	BLI_listbase_clear(&ob_dst->modifiers);
 	
-	for (md = ob->modifiers.first; md; md = md->next) {
+	for (md = ob_src->modifiers.first; md; md = md->next) {
 		ModifierData *nmd = modifier_new(md->type);
 		BLI_strncpy(nmd->name, md->name, sizeof(nmd->name));
-		modifier_copyData(md, nmd);
-		BLI_addtail(&obn->modifiers, nmd);
+		modifier_copyData_ex(md, nmd, flag_subdata);
+		BLI_addtail(&ob_dst->modifiers, nmd);
 	}
 
-	BLI_listbase_clear(&obn->prop);
-	BKE_bproperty_copy_list(&obn->prop, &ob->prop);
+	BLI_listbase_clear(&ob_dst->prop);
+	BKE_bproperty_copy_list(&ob_dst->prop, &ob_src->prop);
 
-	BKE_sca_logic_copy(obn, ob);
+	BKE_sca_logic_copy(ob_dst, ob_src, flag_subdata);
 
-	if (ob->pose) {
-		copy_object_pose(obn, ob);
+	if (ob_src->pose) {
+		copy_object_pose(ob_dst, ob_src, flag_subdata);
 		/* backwards compat... non-armatures can get poses in older files? */
-		if (ob->type == OB_ARMATURE)
-			BKE_pose_rebuild(obn, obn->data);
+		if (ob_src->type == OB_ARMATURE)
+			BKE_pose_rebuild(ob_dst, ob_dst->data);
 	}
-	defgroup_copy_list(&obn->defbase, &ob->defbase);
-	BKE_constraints_copy(&obn->constraints, &ob->constraints, true);
-
-	obn->mode = OB_MODE_OBJECT;
-	obn->sculpt = NULL;
+	defgroup_copy_list(&ob_dst->defbase, &ob_src->defbase);
+	BKE_constraints_copy_ex(&ob_dst->constraints, &ob_src->constraints, flag_subdata, true);
 
-	/* increase user numbers */
-	id_us_plus((ID *)obn->data);
-	id_us_plus((ID *)obn->poselib);
-	id_us_plus((ID *)obn->gpd);
-	id_us_plus((ID *)obn->dup_group);
+	ob_dst->mode = OB_MODE_OBJECT;
+	ob_dst->sculpt = NULL;
 
-	for (a = 0; a < obn->totcol; a++) id_us_plus((ID *)obn->mat[a]);
-	
-	if (ob->pd) {
-		obn->pd = MEM_dupallocN(ob->pd);
-		if (obn->pd->tex)
-			id_us_plus(&(obn->pd->tex->id));
-		if (obn->pd->rng)
-			obn->pd->rng = MEM_dupallocN(ob->pd->rng);
+	if (ob_src->pd) {
+		ob_dst->pd = MEM_dupallocN(ob_src->pd);
+		if (ob_dst->pd->rng) {
+			ob_dst->pd->rng = MEM_dupallocN(ob_src->pd->rng);
+		}
 	}
-	obn->soft = copy_softbody(ob->soft, copy_caches);
-	obn->bsoft = copy_bulletsoftbody(ob->bsoft);
-	obn->rigidbody_object = BKE_rigidbody_copy_object(ob);
-	obn->rigidbody_constraint = BKE_rigidbody_copy_constraint(ob);
+	ob_dst->soft = copy_softbody(ob_src->soft, flag_subdata);
+	ob_dst->bsoft = copy_bulletsoftbody(ob_src->bsoft, flag_subdata);
+	ob_dst->rigidbody_object = BKE_rigidbody_copy_object(ob_src, flag_subdata);
+	ob_dst->rigidbody_constraint = BKE_rigidbody_copy_constraint(ob_src, flag_subdata);
 
-	BKE_object_copy_particlesystems(obn, ob);
+	BKE_object_copy_particlesystems(ob_dst, ob_src, flag_subdata);
 	
-	obn->derivedDeform = NULL;
-	obn->derivedFinal = NULL;
+	ob_dst->derivedDeform = NULL;
+	ob_dst->derivedFinal = NULL;
 
-	BLI_listbase_clear(&obn->gpulamp);
-	BLI_listbase_clear(&obn->pc_ids);
+	BLI_listbase_clear(&ob_dst->gpulamp);
+	BLI_listbase_clear(&ob_dst->pc_ids);
 
-	obn->mpath = NULL;
+	ob_dst->mpath = NULL;
 
-	copy_object_lod(obn, ob);
+	copy_object_lod(ob_dst, ob_src, flag_subdata);
 	
-	/* Copy runtime surve data. */
-	obn->curve_cache = NULL;
-
-	BKE_id_copy_ensure_local(bmain, &ob->id, &obn->id);
+	/* Do not copy runtime curve data. */
+	ob_dst->curve_cache = NULL;
 
 	/* Do not copy object's preview (mostly due to the fact renderers create temp copy of objects). */
-	obn->preview = NULL;
-
-	return obn;
+	if ((flag & LIB_ID_COPY_NO_PREVIEW) == 0 && false) {  /* XXX TODO temp hack */
+		BKE_previewimg_id_copy(&ob_dst->id, &ob_src->id);
+	}
+	else {
+		ob_dst->preview = NULL;
+	}
 }
 
 /* copy objects, will re-initialize cached simulation data */
 Object *BKE_object_copy(Main *bmain, const Object *ob)
 {
-	return BKE_object_copy_ex(bmain, ob, false);
+	Object *ob_copy;
+	BKE_id_copy_ex(bmain, &ob->id, (ID **)&ob_copy, 0, false);
+	return ob_copy;
 }
 
 void BKE_object_make_local_ex(Main *bmain, Object *ob, const bool lib_local, const bool clear_proxy)
@@ -1387,7 +1390,7 @@ void BKE_object_make_proxy(Object *ob, Object *target, Object *gob)
 	
 	/* type conversions */
 	if (target->type == OB_ARMATURE) {
-		copy_object_pose(ob, target);   /* data copy, object pointers in constraints */
+		copy_object_pose(ob, target, 0);   /* data copy, object pointers in constraints */
 		BKE_pose_rest(ob->pose);            /* clear all transforms in channels */
 		BKE_pose_rebuild(ob, ob->data); /* set all internal links */
 		
@@ -2679,7 +2682,7 @@ void BKE_object_sculpt_modifiers_changed(Object *ob)
 {
 	SculptSession *ss = ob->sculpt;
 
-	if (ss) {
+	if (ss && ss->building_vp_handle == false) {
 		if (!ss->cache) {
 			/* we free pbvh on changes, except during sculpt since it can't deal with
 			 * changing PVBH node organization, we hope topology does not change in
@@ -2690,6 +2693,9 @@ void BKE_object_sculpt_modifiers_changed(Object *ob)
 			}
 
 			BKE_sculptsession_free_deformMats(ob->sculpt);
+
+			/* In vertex/weight paint, force maps to be rebuilt. */
+			BKE_sculptsession_free_vwpaint_data(ob->sculpt);
 		}
 		else {
 			PBVHNode **nodes;
diff --git a/source/blender/blenkernel/intern/object_deform.c b/source/blender/blenkernel/intern/object_deform.c
index ccf2aec5c7a..d387e30050c 100644
--- a/source/blender/blenkernel/intern/object_deform.c
+++ b/source/blender/blenkernel/intern/object_deform.c
@@ -481,6 +481,8 @@ bool BKE_object_defgroup_array_get(ID *id, MDeformVert **dvert_arr, int *dvert_t
 				*dvert_tot = lt->pntsu * lt->pntsv * lt->pntsw;
 				return true;
 			}
+			default:
+				break;
 		}
 	}
 
diff --git a/source/blender/blenkernel/intern/object_dupli.c b/source/blender/blenkernel/intern/object_dupli.c
index 076bef71875..b49e481b068 100644
--- a/source/blender/blenkernel/intern/object_dupli.c
+++ b/source/blender/blenkernel/intern/object_dupli.c
@@ -343,7 +343,7 @@ static void make_duplis_group(const DupliContext *ctx)
 	}
 }
 
-const DupliGenerator gen_dupli_group = {
+static const DupliGenerator gen_dupli_group = {
     OB_DUPLIGROUP,                  /* type */
     make_duplis_group               /* make_duplis */
 };
@@ -421,7 +421,7 @@ static void make_duplis_frames(const DupliContext *ctx)
 	*ob = copyob;
 }
 
-const DupliGenerator gen_dupli_frames = {
+static const DupliGenerator gen_dupli_frames = {
     OB_DUPLIFRAMES,                 /* type */
     make_duplis_frames              /* make_duplis */
 };
@@ -571,7 +571,7 @@ static void make_duplis_verts(const DupliContext *ctx)
 	vdd.dm->release(vdd.dm);
 }
 
-const DupliGenerator gen_dupli_verts = {
+static const DupliGenerator gen_dupli_verts = {
     OB_DUPLIVERTS,                  /* type */
     make_duplis_verts               /* make_duplis */
 };
@@ -684,7 +684,7 @@ static void make_duplis_font(const DupliContext *ctx)
 	MEM_freeN(chartransdata);
 }
 
-const DupliGenerator gen_dupli_verts_font = {
+static const DupliGenerator gen_dupli_verts_font = {
     OB_DUPLIVERTS,                  /* type */
     make_duplis_font                /* make_duplis */
 };
@@ -847,7 +847,7 @@ static void make_duplis_faces(const DupliContext *ctx)
 	fdd.dm->release(fdd.dm);
 }
 
-const DupliGenerator gen_dupli_faces = {
+static const DupliGenerator gen_dupli_faces = {
     OB_DUPLIFACES,                  /* type */
     make_duplis_faces               /* make_duplis */
 };
@@ -1168,7 +1168,7 @@ static void make_duplis_particles(const DupliContext *ctx)
 	}
 }
 
-const DupliGenerator gen_dupli_particles = {
+static const DupliGenerator gen_dupli_particles = {
     OB_DUPLIPARTS,                  /* type */
     make_duplis_particles           /* make_duplis */
 };
diff --git a/source/blender/blenkernel/intern/packedFile.c b/source/blender/blenkernel/intern/packedFile.c
index 64f90ef5c52..89f25136caf 100644
--- a/source/blender/blenkernel/intern/packedFile.c
+++ b/source/blender/blenkernel/intern/packedFile.c
@@ -522,6 +522,8 @@ static void unpack_generate_paths(
 		case ID_IM:
 			BLI_snprintf(r_relpath, relpathlen, "//textures/%s", tempname);
 			break;
+		default:
+			break;
 	}
 
 	{
@@ -712,6 +714,8 @@ bool BKE_pack_check(ID *id)
 			Library *li = (Library *)id;
 			return li->packedfile != NULL;
 		}
+		default:
+			break;
 	}
 	return false;
 }
@@ -750,5 +754,7 @@ void BKE_unpack_id(Main *bmain, ID *id, ReportList *reports, int how)
 			BKE_reportf(reports, RPT_ERROR, "Cannot unpack individual Library file, '%s'", li->name);
 			break;
 		}
+		default:
+			break;
 	}
 }
diff --git a/source/blender/blenkernel/intern/paint.c b/source/blender/blenkernel/intern/paint.c
index c7cfe55f659..849fb5c6b5a 100644
--- a/source/blender/blenkernel/intern/paint.c
+++ b/source/blender/blenkernel/intern/paint.c
@@ -309,24 +309,31 @@ PaintCurve *BKE_paint_curve_add(Main *bmain, const char *name)
 {
 	PaintCurve *pc;
 
-	pc = BKE_libblock_alloc(bmain, ID_PC, name);
+	pc = BKE_libblock_alloc(bmain, ID_PC, name, 0);
 
 	return pc;
 }
 
-PaintCurve *BKE_paint_curve_copy(Main *bmain, const PaintCurve *pc)
+/**
+ * Only copy internal data of PaintCurve ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_paint_curve_copy_data(Main *UNUSED(bmain), PaintCurve *pc_dst, const PaintCurve *pc_src, const int UNUSED(flag))
 {
-	PaintCurve *pc_new;
-
-	pc_new = BKE_libblock_copy(bmain, &pc->id);
-
-	if (pc->tot_points != 0) {
-		pc_new->points = MEM_dupallocN(pc->points);
+	if (pc_src->tot_points != 0) {
+		pc_dst->points = MEM_dupallocN(pc_src->points);
 	}
+}
 
-	BKE_id_copy_ensure_local(bmain, &pc->id, &pc_new->id);
-
-	return pc_new;
+PaintCurve *BKE_paint_curve_copy(Main *bmain, const PaintCurve *pc)
+{
+	PaintCurve *pc_copy;
+	BKE_id_copy_ex(bmain, &pc->id, (ID **)&pc_copy, 0, false);
+	return pc_copy;
 }
 
 void BKE_paint_curve_make_local(Main *bmain, PaintCurve *pc, const bool lib_local)
@@ -388,7 +395,7 @@ Palette *BKE_palette_add(Main *bmain, const char *name)
 {
 	Palette *palette;
 
-	palette = BKE_libblock_alloc(bmain, ID_PAL, name);
+	palette = BKE_libblock_alloc(bmain, ID_PAL, name, 0);
 
 	/* enable fake user by default */
 	id_fake_user_set(&palette->id);
@@ -396,17 +403,24 @@ Palette *BKE_palette_add(Main *bmain, const char *name)
 	return palette;
 }
 
-Palette *BKE_palette_copy(Main *bmain, const Palette *palette)
+/**
+ * Only copy internal data of Palette ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_palette_copy_data(Main *UNUSED(bmain), Palette *palette_dst, const Palette *palette_src, const int UNUSED(flag))
 {
-	Palette *palette_new;
-
-	palette_new = BKE_libblock_copy(bmain, &palette->id);
-
-	BLI_duplicatelist(&palette_new->colors, &palette->colors);
-
-	BKE_id_copy_ensure_local(bmain, &palette->id, &palette_new->id);
+	BLI_duplicatelist(&palette_dst->colors, &palette_src->colors);
+}
 
-	return palette_new;
+Palette *BKE_palette_copy(Main *bmain, const Palette *palette)
+{
+	Palette *palette_copy;
+	BKE_id_copy_ex(bmain, &palette->id, (ID **)&palette_copy, 0, false);
+	return palette_copy;
 }
 
 void BKE_palette_make_local(Main *bmain, Palette *palette, const bool lib_local)
@@ -452,7 +466,7 @@ bool BKE_paint_select_vert_test(Object *ob)
 	         (ob->type == OB_MESH) &&
 	         (ob->data != NULL) &&
 	         (((Mesh *)ob->data)->editflag & ME_EDIT_PAINT_VERT_SEL) &&
-	         (ob->mode & OB_MODE_WEIGHT_PAINT)
+	         (ob->mode & OB_MODE_WEIGHT_PAINT || ob->mode & OB_MODE_VERTEX_PAINT)
 	         );
 }
 
@@ -537,12 +551,15 @@ void BKE_paint_free(Paint *paint)
  * still do a id_us_plus(), rather then if we were copying between 2 existing
  * scenes where a matching value should decrease the existing user count as
  * with paint_brush_set() */
-void BKE_paint_copy(Paint *src, Paint *tar)
+void BKE_paint_copy(Paint *src, Paint *tar, const int flag)
 {
 	tar->brush = src->brush;
-	id_us_plus((ID *)tar->brush);
-	id_us_plus((ID *)tar->palette);
 	tar->cavity_curve = curvemapping_copy(src->cavity_curve);
+
+	if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
+		id_us_plus((ID *)tar->brush);
+		id_us_plus((ID *)tar->palette);
+	}
 }
 
 void BKE_paint_stroke_get_average(Scene *scene, Object *ob, float stroke[3])
@@ -656,6 +673,31 @@ void BKE_sculptsession_free_deformMats(SculptSession *ss)
 	MEM_SAFE_FREE(ss->deform_imats);
 }
 
+void BKE_sculptsession_free_vwpaint_data(struct SculptSession *ss)
+{
+	struct SculptVertexPaintGeomMap *gmap = NULL;
+	if (ss->mode_type == OB_MODE_VERTEX_PAINT) {
+		gmap = &ss->mode.vpaint.gmap;
+
+		MEM_SAFE_FREE(ss->mode.vpaint.previous_color);
+		MEM_SAFE_FREE(ss->mode.vpaint.previous_accum);
+	}
+	else if (ss->mode_type == OB_MODE_WEIGHT_PAINT) {
+		gmap = &ss->mode.wpaint.gmap;
+
+		MEM_SAFE_FREE(ss->mode.wpaint.alpha_weight);
+		MEM_SAFE_FREE(ss->mode.wpaint.previous_weight);
+		MEM_SAFE_FREE(ss->mode.wpaint.previous_accum);
+	}
+	else {
+		return;
+	}
+	MEM_SAFE_FREE(gmap->vert_to_loop);
+	MEM_SAFE_FREE(gmap->vert_map_mem);
+	MEM_SAFE_FREE(gmap->vert_to_poly);
+	MEM_SAFE_FREE(gmap->poly_map_mem);
+}
+
 /* Write out the sculpt dynamic-topology BMesh to the Mesh */
 static void sculptsession_bm_to_me_update_data_only(Object *ob, bool reorder)
 {
@@ -747,6 +789,8 @@ void BKE_sculptsession_free(Object *ob)
 		if (ss->deform_imats)
 			MEM_freeN(ss->deform_imats);
 
+		BKE_sculptsession_free_vwpaint_data(ob->sculpt);
+
 		MEM_freeN(ss);
 
 		ob->sculpt = NULL;
@@ -831,6 +875,8 @@ void BKE_sculpt_update_mesh_elements(Scene *scene, Sculpt *sd, Object *ob,
 	ss->modifiers_active = sculpt_modifiers_active(scene, sd, ob);
 	ss->show_diffuse_color = (sd->flags & SCULPT_SHOW_DIFFUSE) != 0;
 
+	ss->building_vp_handle = false;
+
 	if (need_mask) {
 		if (mmd == NULL) {
 			if (!CustomData_has_layer(&me->vdata, CD_PAINT_MASK)) {
@@ -859,7 +905,8 @@ void BKE_sculpt_update_mesh_elements(Scene *scene, Sculpt *sd, Object *ob,
 
 	dm = mesh_get_derived_final(scene, ob, CD_MASK_BAREMESH);
 
-	if (mmd) {
+	/* VWPaint require mesh info for loop lookup, so require sculpt mode here */
+	if (mmd && ob->mode & OB_MODE_SCULPT) {
 		ss->multires = mmd;
 		ss->totvert = dm->getNumVerts(dm);
 		ss->totpoly = dm->getNumPolys(dm);
diff --git a/source/blender/blenkernel/intern/particle.c b/source/blender/blenkernel/intern/particle.c
index 416d63cfefb..8c94cdfe784 100644
--- a/source/blender/blenkernel/intern/particle.c
+++ b/source/blender/blenkernel/intern/particle.c
@@ -3300,7 +3300,7 @@ ParticleSettings *psys_new_settings(const char *name, Main *main)
 	if (main == NULL)
 		main = G.main;
 
-	part = BKE_libblock_alloc(main, ID_PA, name);
+	part = BKE_libblock_alloc(main, ID_PA, name, 0);
 	
 	default_particle_settings(part);
 
@@ -3331,38 +3331,45 @@ void BKE_particlesettings_rough_curve_init(ParticleSettings *part)
 	part->roughcurve = cumap;
 }
 
-ParticleSettings *BKE_particlesettings_copy(Main *bmain, const ParticleSettings *part)
+/**
+ * Only copy internal data of ParticleSettings ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_particlesettings_copy_data(
+        Main *UNUSED(bmain), ParticleSettings *part_dst, const ParticleSettings *part_src, const int UNUSED(flag))
 {
-	ParticleSettings *partn;
-	int a;
+	part_dst->pd = MEM_dupallocN(part_src->pd);
+	part_dst->pd2 = MEM_dupallocN(part_src->pd2);
+	part_dst->effector_weights = MEM_dupallocN(part_src->effector_weights);
+	part_dst->fluid = MEM_dupallocN(part_src->fluid);
 
-	partn = BKE_libblock_copy(bmain, &part->id);
+	if (part_src->clumpcurve) {
+		part_dst->clumpcurve = curvemapping_copy(part_src->clumpcurve);
+	}
+	if (part_src->roughcurve) {
+		part_dst->roughcurve = curvemapping_copy(part_src->roughcurve);
+	}
 
-	partn->pd = MEM_dupallocN(part->pd);
-	partn->pd2 = MEM_dupallocN(part->pd2);
-	partn->effector_weights = MEM_dupallocN(part->effector_weights);
-	partn->fluid = MEM_dupallocN(part->fluid);
+	part_dst->boids = boid_copy_settings(part_src->boids);
 
-	if (part->clumpcurve)
-		partn->clumpcurve = curvemapping_copy(part->clumpcurve);
-	if (part->roughcurve)
-		partn->roughcurve = curvemapping_copy(part->roughcurve);
-	
-	partn->boids = boid_copy_settings(part->boids);
-
-	for (a = 0; a < MAX_MTEX; a++) {
-		if (part->mtex[a]) {
-			partn->mtex[a] = MEM_mallocN(sizeof(MTex), "psys_copy_tex");
-			memcpy(partn->mtex[a], part->mtex[a], sizeof(MTex));
-			id_us_plus((ID *)partn->mtex[a]->tex);
+	for (int a = 0; a < MAX_MTEX; a++) {
+		if (part_src->mtex[a]) {
+			part_dst->mtex[a] = MEM_dupallocN(part_src->mtex[a]);
 		}
 	}
 
-	BLI_duplicatelist(&partn->dupliweights, &part->dupliweights);
-	
-	BKE_id_copy_ensure_local(bmain, &part->id, &partn->id);
+	BLI_duplicatelist(&part_dst->dupliweights, &part_src->dupliweights);
+}
 
-	return partn;
+ParticleSettings *BKE_particlesettings_copy(Main *bmain, const ParticleSettings *part)
+{
+	ParticleSettings *part_copy;
+	BKE_id_copy_ex(bmain, &part->id, (ID **)&part_copy, 0, false);
+	return part_copy;
 }
 
 void BKE_particlesettings_make_local(Main *bmain, ParticleSettings *part, const bool lib_local)
diff --git a/source/blender/blenkernel/intern/particle_distribute.c b/source/blender/blenkernel/intern/particle_distribute.c
index 4f758bde7f9..9a7980827ad 100644
--- a/source/blender/blenkernel/intern/particle_distribute.c
+++ b/source/blender/blenkernel/intern/particle_distribute.c
@@ -39,6 +39,7 @@
 #include "BLI_jitter.h"
 #include "BLI_kdtree.h"
 #include "BLI_math.h"
+#include "BLI_math_geom.h"
 #include "BLI_rand.h"
 #include "BLI_sort.h"
 #include "BLI_task.h"
@@ -213,14 +214,22 @@ static void distribute_grid(DerivedMesh *dm, ParticleSystem *psys)
 					copy_v3_v3(co2, co1);
 					co2[a] += delta[a] + 0.001f*d;
 					co1[a] -= 0.001f*d;
-					
+
+					struct IsectRayPrecalc isect_precalc;
+					float ray_direction[3];
+					sub_v3_v3v3(ray_direction, co2, co1);
+					isect_ray_tri_watertight_v3_precalc(&isect_precalc, ray_direction);
+
 					/* lets intersect the faces */
 					for (i=0; i<totface; i++,mface++) {
 						copy_v3_v3(v1, mvert[mface->v1].co);
 						copy_v3_v3(v2, mvert[mface->v2].co);
 						copy_v3_v3(v3, mvert[mface->v3].co);
 
-						bool intersects_tri = isect_axial_line_segment_tri_v3(a, co1, co2, v2, v3, v1, &lambda);
+						bool intersects_tri = isect_ray_tri_watertight_v3(co1,
+						                                                  &isect_precalc,
+						                                                  v1, v2, v3,
+						                                                  &lambda, NULL);
 						if (intersects_tri) {
 							if (from==PART_FROM_FACE)
 								(pa+(int)(lambda*size[a])*a0mul)->flag &= ~PARS_UNEXIST;
@@ -231,7 +240,10 @@ static void distribute_grid(DerivedMesh *dm, ParticleSystem *psys)
 						if (mface->v4 && (!intersects_tri || from==PART_FROM_VOLUME)) {
 							copy_v3_v3(v4, mvert[mface->v4].co);
 
-							if (isect_axial_line_segment_tri_v3(a, co1, co2, v4, v1, v3, &lambda)) {
+							if (isect_ray_tri_watertight_v3(co1,
+							                                &isect_precalc,
+							                                v1, v3, v4,
+							                                &lambda, NULL)) {
 								if (from==PART_FROM_FACE)
 									(pa+(int)(lambda*size[a])*a0mul)->flag &= ~PARS_UNEXIST;
 								else
@@ -429,7 +441,6 @@ static void distribute_from_verts_exec(ParticleTask *thread, ParticleData *pa, i
 	ParticleThreadContext *ctx= thread->ctx;
 	MFace *mface;
 
-	DM_ensure_tessface(ctx->dm);
 	mface = ctx->dm->getTessFaceDataArray(ctx->dm, CD_MFACE);
 
 	int rng_skip_tot = PSYS_RND_DIST_SKIP; /* count how many rng_* calls wont need skipping */
@@ -899,10 +910,7 @@ static int psys_thread_context_init_distribute(ParticleThreadContext *ctx, Parti
 		else
 			dm= CDDM_from_mesh((Mesh*)ob->data);
 
-		/* BMESH ONLY, for verts we don't care about tessfaces */
-		if (from != PART_FROM_VERT) {
-			DM_ensure_tessface(dm);
-		}
+		DM_ensure_tessface(dm);
 
 		/* we need orco for consistent distributions */
 		if (!CustomData_has_layer(&dm->vertData, CD_ORCO))
@@ -1096,13 +1104,10 @@ static int psys_thread_context_init_distribute(ParticleThreadContext *ctx, Parti
 		/* This is to address tricky issues with vertex-emitting when user tries (and expects) exact 1-1 vert/part
 		 * distribution (see T47983 and its two example files). It allows us to consider pos as
 		 * 'midpoint between v and v+1' (or 'p and p+1', depending whether we have more vertices than particles or not),
-		 * and avoid stumbling over float imprecisions in element_sum. */
-		if (from == PART_FROM_VERT) {
-			pos = (totpart < totmapped) ? 0.5 / (double)totmapped : step * 0.5;  /* We choose the smaller step. */
-		}
-		else {
-			pos = 0.0;
-		}
+		 * and avoid stumbling over float imprecisions in element_sum.
+		 * Note: moved face and volume distribution to this as well (instead of starting at zero),
+		 * for the same reasons, see T52682. */
+		pos = (totpart < totmapped) ? 0.5 / (double)totmapped : step * 0.5;  /* We choose the smaller step. */
 
 		for (i = 0, p = 0; p < totpart; p++, pos += step) {
 			for ( ; (i < totmapped - 1) && (pos > (double)element_sum[i]); i++);
@@ -1141,7 +1146,7 @@ static int psys_thread_context_init_distribute(ParticleThreadContext *ctx, Parti
 		
 		if (jitlevel == 0) {
 			jitlevel= totpart/totelem;
-			if (part->flag & PART_EDISTR) jitlevel*= 2;	/* looks better in general, not very scietific */
+			if (part->flag & PART_EDISTR) jitlevel*= 2;	/* looks better in general, not very scientific */
 			if (jitlevel<3) jitlevel= 3;
 		}
 		
diff --git a/source/blender/blenkernel/intern/particle_system.c b/source/blender/blenkernel/intern/particle_system.c
index 3f9a92a5577..38eb861599a 100644
--- a/source/blender/blenkernel/intern/particle_system.c
+++ b/source/blender/blenkernel/intern/particle_system.c
@@ -2319,21 +2319,21 @@ static void collision_point_on_surface(float p[3], ParticleCollisionElement *pce
 		}
 		case 3:
 		{
-				float p0[3], e1[3], e2[3], nor[3];
+			float p0[3], e1[3], e2[3], nor[3];
 
-				sub_v3_v3v3(e1, pce->x1, pce->x0);
-				sub_v3_v3v3(e2, pce->x2, pce->x0);
-				sub_v3_v3v3(p0, p, pce->x0);
+			sub_v3_v3v3(e1, pce->x1, pce->x0);
+			sub_v3_v3v3(e2, pce->x2, pce->x0);
+			sub_v3_v3v3(p0, p, pce->x0);
 
-				cross_v3_v3v3(nor, e1, e2);
-				normalize_v3(nor);
+			cross_v3_v3v3(nor, e1, e2);
+			normalize_v3(nor);
 
-				if (pce->inv_nor == 1)
-					negate_v3(nor);
+			if (pce->inv_nor == 1)
+				negate_v3(nor);
 
-				madd_v3_v3v3fl(co, pce->x0, nor, col->radius);
-				madd_v3_v3fl(co, e1, pce->uv[0]);
-				madd_v3_v3fl(co, e2, pce->uv[1]);
+			madd_v3_v3v3fl(co, pce->x0, nor, col->radius);
+			madd_v3_v3fl(co, e1, pce->uv[0]);
+			madd_v3_v3fl(co, e2, pce->uv[1]);
 			break;
 		}
 	}
@@ -3042,10 +3042,12 @@ static void hair_create_input_dm(ParticleSimulationData *sim, int totpoint, int
 	/* calculate maximum segment length */
 	max_length = 0.0f;
 	LOOP_PARTICLES {
-		for (k=1, key=pa->hair+1; k<pa->totkey; k++,key++) {
-			float length = len_v3v3(key->co, (key-1)->co);
-			if (max_length < length)
-				max_length = length;
+		if (!(pa->flag & PARS_UNEXIST)) {
+			for (k=1, key=pa->hair+1; k<pa->totkey; k++,key++) {
+				float length = len_v3v3(key->co, (key-1)->co);
+				if (max_length < length)
+					max_length = length;
+			}
 		}
 	}
 	
@@ -3057,76 +3059,78 @@ static void hair_create_input_dm(ParticleSimulationData *sim, int totpoint, int
 	/* make vgroup for pin roots etc.. */
 	hair_index = 1;
 	LOOP_PARTICLES {
-		float root_mat[4][4];
-		float bending_stiffness;
-		bool use_hair;
-		
-		pa->hair_index = hair_index;
-		use_hair = psys_hair_use_simulation(pa, max_length);
-		
-		psys_mat_hair_to_object(sim->ob, sim->psmd->dm_final, psys->part->from, pa, hairmat);
-		mul_m4_m4m4(root_mat, sim->ob->obmat, hairmat);
-		normalize_m4(root_mat);
-		
-		bending_stiffness = CLAMPIS(1.0f - part->bending_random * psys_frand(psys, p + 666), 0.0f, 1.0f);
-		
-		for (k=0, key=pa->hair; k<pa->totkey; k++,key++) {
-			ClothHairData *hair;
-			float *co, *co_next;
-			
-			co = key->co;
-			co_next = (key+1)->co;
-			
-			/* create fake root before actual root to resist bending */
-			if (k==0) {
-				hair = &psys->clmd->hairdata[pa->hair_index - 1];
+		if (!(pa->flag & PARS_UNEXIST)) {
+			float root_mat[4][4];
+			float bending_stiffness;
+			bool use_hair;
+
+			pa->hair_index = hair_index;
+			use_hair = psys_hair_use_simulation(pa, max_length);
+
+			psys_mat_hair_to_object(sim->ob, sim->psmd->dm_final, psys->part->from, pa, hairmat);
+			mul_m4_m4m4(root_mat, sim->ob->obmat, hairmat);
+			normalize_m4(root_mat);
+
+			bending_stiffness = CLAMPIS(1.0f - part->bending_random * psys_frand(psys, p + 666), 0.0f, 1.0f);
+
+			for (k=0, key=pa->hair; k<pa->totkey; k++,key++) {
+				ClothHairData *hair;
+				float *co, *co_next;
+
+				co = key->co;
+				co_next = (key+1)->co;
+
+				/* create fake root before actual root to resist bending */
+				if (k==0) {
+					hair = &psys->clmd->hairdata[pa->hair_index - 1];
+					copy_v3_v3(hair->loc, root_mat[3]);
+					copy_m3_m4(hair->rot, root_mat);
+
+					hair->radius = hair_radius;
+					hair->bending_stiffness = bending_stiffness;
+
+					add_v3_v3v3(mvert->co, co, co);
+					sub_v3_v3(mvert->co, co_next);
+					mul_m4_v3(hairmat, mvert->co);
+
+					medge->v1 = pa->hair_index - 1;
+					medge->v2 = pa->hair_index;
+
+					dvert = hair_set_pinning(dvert, 1.0f);
+
+					mvert++;
+					medge++;
+				}
+
+				/* store root transform in cloth data */
+				hair = &psys->clmd->hairdata[pa->hair_index + k];
 				copy_v3_v3(hair->loc, root_mat[3]);
 				copy_m3_m4(hair->rot, root_mat);
-				
+
 				hair->radius = hair_radius;
 				hair->bending_stiffness = bending_stiffness;
-				
-				add_v3_v3v3(mvert->co, co, co);
-				sub_v3_v3(mvert->co, co_next);
+
+				copy_v3_v3(mvert->co, co);
 				mul_m4_v3(hairmat, mvert->co);
-				
-				medge->v1 = pa->hair_index - 1;
-				medge->v2 = pa->hair_index;
-				
-				dvert = hair_set_pinning(dvert, 1.0f);
-				
+
+				if (k) {
+					medge->v1 = pa->hair_index + k - 1;
+					medge->v2 = pa->hair_index + k;
+				}
+
+				/* roots and disabled hairs should be 1.0, the rest can be anything from 0.0 to 1.0 */
+				if (use_hair)
+					dvert = hair_set_pinning(dvert, key->weight);
+				else
+					dvert = hair_set_pinning(dvert, 1.0f);
+
 				mvert++;
-				medge++;
+				if (k)
+					medge++;
 			}
-			
-			/* store root transform in cloth data */
-			hair = &psys->clmd->hairdata[pa->hair_index + k];
-			copy_v3_v3(hair->loc, root_mat[3]);
-			copy_m3_m4(hair->rot, root_mat);
-			
-			hair->radius = hair_radius;
-			hair->bending_stiffness = bending_stiffness;
-			
-			copy_v3_v3(mvert->co, co);
-			mul_m4_v3(hairmat, mvert->co);
-			
-			if (k) {
-				medge->v1 = pa->hair_index + k - 1;
-				medge->v2 = pa->hair_index + k;
-			}
-			
-			/* roots and disabled hairs should be 1.0, the rest can be anything from 0.0 to 1.0 */
-			if (use_hair)
-				dvert = hair_set_pinning(dvert, key->weight);
-			else
-				dvert = hair_set_pinning(dvert, 1.0f);
-			
-			mvert++;
-			if (k)
-				medge++;
+
+			hair_index += pa->totkey + 1;
 		}
-		
-		hair_index += pa->totkey + 1;
 	}
 }
 
@@ -3152,9 +3156,11 @@ static void do_hair_dynamics(ParticleSimulationData *sim)
 	totpoint = 0;
 	totedge = 0;
 	LOOP_PARTICLES {
-		/* "out" dm contains all hairs */
-		totedge += pa->totkey;
-		totpoint += pa->totkey + 1; /* +1 for virtual root point */
+		if (!(pa->flag & PARS_UNEXIST)) {
+			/* "out" dm contains all hairs */
+			totedge += pa->totkey;
+			totpoint += pa->totkey + 1; /* +1 for virtual root point */
+		}
 	}
 	
 	realloc_roots = false; /* whether hair root info array has to be reallocated */
@@ -4350,13 +4356,12 @@ void BKE_particlesystem_id_loop(ParticleSystem *psys, ParticleSystemIDFunc func,
 
 /* **** Depsgraph evaluation **** */
 
-void BKE_particle_system_eval(EvaluationContext *UNUSED(eval_ctx),
-                              Scene *scene,
-                              Object *ob,
-                              ParticleSystem *psys)
+void BKE_particle_system_eval_init(EvaluationContext *UNUSED(eval_ctx),
+                                   Scene *scene,
+                                   Object *ob)
 {
 	if (G.debug & G_DEBUG_DEPSGRAPH) {
-		printf("%s on %s:%s\n", __func__, ob->id.name, psys->name);
+		printf("%s on %s\n", __func__, ob->id.name);
 	}
 	BKE_ptcache_object_reset(scene, ob, PTCACHE_RESET_DEPSGRAPH);
 }
diff --git a/source/blender/blenkernel/intern/pbvh.c b/source/blender/blenkernel/intern/pbvh.c
index 53dfffe2b97..4b154d3301c 100644
--- a/source/blender/blenkernel/intern/pbvh.c
+++ b/source/blender/blenkernel/intern/pbvh.c
@@ -34,6 +34,7 @@
 
 #include "BKE_pbvh.h"
 #include "BKE_ccg.h"
+#include "BKE_subsurf.h"
 #include "BKE_DerivedMesh.h"
 #include "BKE_global.h"
 #include "BKE_mesh.h" /* for BKE_mesh_calc_normals */
@@ -606,6 +607,10 @@ void BKE_pbvh_build_grids(PBVH *bvh, CCGElem **grids,
 	MEM_freeN(prim_bbc);
 }
 
+void BKE_pbvh_set_ccgdm(PBVH *bvh, CCGDerivedMesh *ccgdm) {
+	bvh->ccgdm = ccgdm;
+}
+
 PBVH *BKE_pbvh_new(void)
 {
 	PBVH *bvh = MEM_callocN(sizeof(PBVH), "pbvh");
@@ -1156,7 +1161,7 @@ static void pbvh_update_draw_buffers(PBVH *bvh, PBVHNode **nodes, int totnode)
 	}
 }
 
-static void pbvh_draw_BB(PBVH *bvh)
+void BKE_pbvh_draw_BB(PBVH *bvh)
 {
 	GPU_pbvh_BB_draw_init();
 
@@ -1329,6 +1334,11 @@ void BKE_pbvh_get_grid_key(const PBVH *bvh, CCGKey *key)
 	*key = bvh->gridkey;
 }
 
+CCGDerivedMesh *BKE_pbvh_get_ccgdm(const PBVH *bvh) {
+	return bvh->ccgdm;
+}
+
+
 BMesh *BKE_pbvh_get_bmesh(PBVH *bvh)
 {
 	BLI_assert(bvh->type == PBVH_BMESH);
@@ -1860,7 +1870,7 @@ void BKE_pbvh_draw(PBVH *bvh, float (*planes)[4], float (*fnors)[3],
 	}
 
 	if (G.debug_value == 14)
-		pbvh_draw_BB(bvh);
+		BKE_pbvh_draw_BB(bvh);
 }
 
 void BKE_pbvh_grids_update(PBVH *bvh, CCGElem **grids, void **gridfaces,
diff --git a/source/blender/blenkernel/intern/pbvh_intern.h b/source/blender/blenkernel/intern/pbvh_intern.h
index 19d3b31bd31..01057318568 100644
--- a/source/blender/blenkernel/intern/pbvh_intern.h
+++ b/source/blender/blenkernel/intern/pbvh_intern.h
@@ -149,6 +149,8 @@ struct PBVH {
 	 * objects in sculpt mode with different sizes at the same time, so now storing that common gpu buffer
 	 * in an opaque pointer per pbvh. See T47637. */
 	struct GridCommonGPUBuffer *grid_common_gpu_buffer;
+	/* The ccgdm is required for CD_ORIGINDEX lookup in vertex paint + multires */
+	struct CCGDerivedMesh *ccgdm;
 
 	/* Only used during BVH build and update,
 	 * don't need to remain valid after */
diff --git a/source/blender/blenkernel/intern/pointcache.c b/source/blender/blenkernel/intern/pointcache.c
index a7e00a8103a..7a1b378b3c4 100644
--- a/source/blender/blenkernel/intern/pointcache.c
+++ b/source/blender/blenkernel/intern/pointcache.c
@@ -3449,7 +3449,7 @@ void BKE_ptcache_free_list(ListBase *ptcaches)
 	}
 }
 
-static PointCache *ptcache_copy(PointCache *cache, bool copy_data)
+static PointCache *ptcache_copy(PointCache *cache, const bool copy_data)
 {
 	PointCache *ncache;
 
@@ -3492,14 +3492,15 @@ static PointCache *ptcache_copy(PointCache *cache, bool copy_data)
 }
 
 /* returns first point cache */
-PointCache *BKE_ptcache_copy_list(ListBase *ptcaches_new, const ListBase *ptcaches_old, bool copy_data)
+PointCache *BKE_ptcache_copy_list(ListBase *ptcaches_new, const ListBase *ptcaches_old, const int flag)
 {
 	PointCache *cache = ptcaches_old->first;
 
 	BLI_listbase_clear(ptcaches_new);
 
-	for (; cache; cache=cache->next)
-		BLI_addtail(ptcaches_new, ptcache_copy(cache, copy_data));
+	for (; cache; cache=cache->next) {
+		BLI_addtail(ptcaches_new, ptcache_copy(cache, (flag & LIB_ID_COPY_CACHES) != 0));
+	}
 
 	return ptcaches_new->first;
 }
@@ -3618,7 +3619,13 @@ void BKE_ptcache_bake(PTCacheBaker *baker)
 						psys_get_pointcache_start_end(scene, pid->calldata, &cache->startframe, &cache->endframe);
 					}
 
-					if (((cache->flag & PTCACHE_BAKED) == 0) && (render || bake)) {
+					// XXX workaround for regression inroduced in ee3fadd, needs looking into
+					if (pid->type == PTCACHE_TYPE_RIGIDBODY) {
+						if ((cache->flag & PTCACHE_REDO_NEEDED || (cache->flag & PTCACHE_SIMULATION_VALID)==0) && (render || bake)) {
+							BKE_ptcache_id_clear(pid, PTCACHE_CLEAR_ALL, 0);
+						}
+					}
+					else if (((cache->flag & PTCACHE_BAKED) == 0) && (render || bake)) {
 						BKE_ptcache_id_clear(pid, PTCACHE_CLEAR_ALL, 0);
 					}
 
diff --git a/source/blender/blenkernel/intern/rigidbody.c b/source/blender/blenkernel/intern/rigidbody.c
index e8c0cf53d0b..03eb83376e7 100644
--- a/source/blender/blenkernel/intern/rigidbody.c
+++ b/source/blender/blenkernel/intern/rigidbody.c
@@ -184,7 +184,7 @@ void BKE_rigidbody_free_constraint(Object *ob)
  * be added to relevant groups later...
  */
 
-RigidBodyOb *BKE_rigidbody_copy_object(const Object *ob)
+RigidBodyOb *BKE_rigidbody_copy_object(const Object *ob, const int UNUSED(flag))
 {
 	RigidBodyOb *rboN = NULL;
 
@@ -204,7 +204,7 @@ RigidBodyOb *BKE_rigidbody_copy_object(const Object *ob)
 	return rboN;
 }
 
-RigidBodyCon *BKE_rigidbody_copy_constraint(const Object *ob)
+RigidBodyCon *BKE_rigidbody_copy_constraint(const Object *ob, const int UNUSED(flag))
 {
 	RigidBodyCon *rbcN = NULL;
 
@@ -291,8 +291,6 @@ static rbCollisionShape *rigidbody_get_shape_trimesh_from_mesh(Object *ob)
 		if (dm == NULL)
 			return NULL;
 
-		DM_ensure_looptri(dm);
-
 		mvert   = dm->getVertArray(dm);
 		totvert = dm->getNumVerts(dm);
 		looptri = dm->getLoopTriArray(dm);
@@ -524,8 +522,6 @@ void BKE_rigidbody_calc_volume(Object *ob, float *r_vol)
 				if (dm == NULL)
 					return;
 			
-				DM_ensure_looptri(dm);
-			
 				mvert   = dm->getVertArray(dm);
 				totvert = dm->getNumVerts(dm);
 				lt = dm->getLoopTriArray(dm);
@@ -609,8 +605,6 @@ void BKE_rigidbody_calc_center_of_mass(Object *ob, float r_center[3])
 				if (dm == NULL)
 					return;
 			
-				DM_ensure_looptri(dm);
-			
 				mvert   = dm->getVertArray(dm);
 				totvert = dm->getNumVerts(dm);
 				looptri = dm->getLoopTriArray(dm);
@@ -945,24 +939,26 @@ RigidBodyWorld *BKE_rigidbody_create_world(Scene *scene)
 	return rbw;
 }
 
-RigidBodyWorld *BKE_rigidbody_world_copy(RigidBodyWorld *rbw)
+RigidBodyWorld *BKE_rigidbody_world_copy(RigidBodyWorld *rbw, const int flag)
 {
-	RigidBodyWorld *rbwn = MEM_dupallocN(rbw);
+	RigidBodyWorld *rbw_copy = MEM_dupallocN(rbw);
 
-	if (rbw->effector_weights)
-		rbwn->effector_weights = MEM_dupallocN(rbw->effector_weights);
-	if (rbwn->group)
-		id_us_plus(&rbwn->group->id);
-	if (rbwn->constraints)
-		id_us_plus(&rbwn->constraints->id);
+	if (rbw->effector_weights) {
+		rbw_copy->effector_weights = MEM_dupallocN(rbw->effector_weights);
+	}
+	if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
+		id_us_plus((ID *)rbw_copy->group);
+		id_us_plus((ID *)rbw_copy->constraints);
+	}
 
-	rbwn->pointcache = BKE_ptcache_copy_list(&rbwn->ptcaches, &rbw->ptcaches, false);
+	/* XXX Never copy caches here? */
+	rbw_copy->pointcache = BKE_ptcache_copy_list(&rbw_copy->ptcaches, &rbw->ptcaches, flag & ~LIB_ID_COPY_CACHES);
 
-	rbwn->objects = NULL;
-	rbwn->physics_world = NULL;
-	rbwn->numbodies = 0;
+	rbw_copy->objects = NULL;
+	rbw_copy->physics_world = NULL;
+	rbw_copy->numbodies = 0;
 
-	return rbwn;
+	return rbw_copy;
 }
 
 void BKE_rigidbody_world_groups_relink(RigidBodyWorld *rbw)
@@ -1600,8 +1596,12 @@ void BKE_rigidbody_do_simulation(Scene *scene, float ctime)
 	BKE_ptcache_id_time(&pid, scene, ctime, &startframe, &endframe, NULL);
 	cache = rbw->pointcache;
 
+	if (ctime <= startframe) {
+		rbw->ltime = startframe;
+		return;
+	}
 	/* make sure we don't go out of cache frame range */
-	if (ctime > endframe) {
+	else if (ctime > endframe) {
 		ctime = endframe;
 	}
 
@@ -1615,12 +1615,9 @@ void BKE_rigidbody_do_simulation(Scene *scene, float ctime)
 	// RB_TODO deal with interpolated, old and baked results
 	bool can_simulate = (ctime == rbw->ltime + 1) && !(cache->flag & PTCACHE_BAKED);
 
-	if (cache->flag & PTCACHE_OUTDATED || cache->last_exact == 0) {
-		rbw->ltime = cache->startframe;
-	}
-
-	if (BKE_ptcache_read(&pid, ctime, can_simulate)) {
+	if (BKE_ptcache_read(&pid, ctime, can_simulate) == PTCACHE_READ_EXACT) {
 		BKE_ptcache_validate(cache, (int)ctime);
+		rbw->ltime = ctime;
 		return;
 	}
 
@@ -1658,13 +1655,13 @@ void BKE_rigidbody_do_simulation(Scene *scene, float ctime)
 #  pragma GCC diagnostic ignored "-Wunused-parameter"
 #endif
 
-struct RigidBodyOb *BKE_rigidbody_copy_object(const Object *ob) { return NULL; }
-struct RigidBodyCon *BKE_rigidbody_copy_constraint(const Object *ob) { return NULL; }
+struct RigidBodyOb *BKE_rigidbody_copy_object(const Object *ob, const int flag) { return NULL; }
+struct RigidBodyCon *BKE_rigidbody_copy_constraint(const Object *ob, const int flag) { return NULL; }
 void BKE_rigidbody_validate_sim_world(Scene *scene, RigidBodyWorld *rbw, bool rebuild) {}
 void BKE_rigidbody_calc_volume(Object *ob, float *r_vol) { if (r_vol) *r_vol = 0.0f; }
 void BKE_rigidbody_calc_center_of_mass(Object *ob, float r_center[3]) { zero_v3(r_center); }
 struct RigidBodyWorld *BKE_rigidbody_create_world(Scene *scene) { return NULL; }
-struct RigidBodyWorld *BKE_rigidbody_world_copy(RigidBodyWorld *rbw) { return NULL; }
+struct RigidBodyWorld *BKE_rigidbody_world_copy(RigidBodyWorld *rbw, const int flag) { return NULL; }
 void BKE_rigidbody_world_groups_relink(struct RigidBodyWorld *rbw) {}
 void BKE_rigidbody_world_id_loop(struct RigidBodyWorld *rbw, RigidbodyWorldIDFunc func, void *userdata) {}
 struct RigidBodyOb *BKE_rigidbody_create_object(Scene *scene, Object *ob, short type) { return NULL; }
diff --git a/source/blender/blenkernel/intern/sca.c b/source/blender/blenkernel/intern/sca.c
index 19d646daf9f..fb81ed4d47f 100644
--- a/source/blender/blenkernel/intern/sca.c
+++ b/source/blender/blenkernel/intern/sca.c
@@ -72,7 +72,7 @@ void free_sensors(ListBase *lb)
 	}
 }
 
-bSensor *copy_sensor(bSensor *sens)
+bSensor *copy_sensor(bSensor *sens, const int UNUSED(flag))
 {
 	bSensor *sensn;
 	
@@ -87,14 +87,14 @@ bSensor *copy_sensor(bSensor *sens)
 	return sensn;
 }
 
-void copy_sensors(ListBase *lbn, const ListBase *lbo)
+void copy_sensors(ListBase *lbn, const ListBase *lbo, const int flag)
 {
 	bSensor *sens, *sensn;
 	
 	lbn->first= lbn->last= NULL;
 	sens= lbo->first;
 	while (sens) {
-		sensn= copy_sensor(sens);
+		sensn= copy_sensor(sens, flag);
 		BLI_addtail(lbn, sensn);
 		sens= sens->next;
 	}
@@ -234,7 +234,7 @@ void free_controllers(ListBase *lb)
 	}
 }
 
-bController *copy_controller(bController *cont)
+bController *copy_controller(bController *cont, const int UNUSED(flag))
 {
 	bController *contn;
 	
@@ -251,14 +251,14 @@ bController *copy_controller(bController *cont)
 	return contn;
 }
 
-void copy_controllers(ListBase *lbn, const ListBase *lbo)
+void copy_controllers(ListBase *lbn, const ListBase *lbo, const int flag)
 {
 	bController *cont, *contn;
 	
 	lbn->first= lbn->last= NULL;
 	cont= lbo->first;
 	while (cont) {
-		contn= copy_controller(cont);
+		contn= copy_controller(cont, flag);
 		BLI_addtail(lbn, contn);
 		cont= cont->next;
 	}
@@ -359,7 +359,7 @@ void free_actuators(ListBase *lb)
 	}
 }
 
-bActuator *copy_actuator(bActuator *act)
+bActuator *copy_actuator(bActuator *act, const int flag)
 {
 	bActuator *actn;
 	
@@ -374,29 +374,31 @@ bActuator *copy_actuator(bActuator *act)
 		case ACT_SHAPEACTION:
 		{
 			bActionActuator *aa = (bActionActuator *)act->data;
-			if (aa->act)
+			if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
 				id_us_plus((ID *)aa->act);
+			}
 			break;
 		}
 		case ACT_SOUND:
 		{
 			bSoundActuator *sa = (bSoundActuator *)act->data;
-			if (sa->sound)
+			if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
 				id_us_plus((ID *)sa->sound);
+			}
 			break;
 		}
 	}
 	return actn;
 }
 
-void copy_actuators(ListBase *lbn, const ListBase *lbo)
+void copy_actuators(ListBase *lbn, const ListBase *lbo, const int flag)
 {
 	bActuator *act, *actn;
 	
 	lbn->first= lbn->last= NULL;
 	act= lbo->first;
 	while (act) {
-		actn= copy_actuator(act);
+		actn= copy_actuator(act, flag);
 		BLI_addtail(lbn, actn);
 		act= act->next;
 	}
@@ -783,11 +785,11 @@ void BKE_sca_logic_links_remap(Main *bmain, Object *ob_old, Object *ob_new)
  * Handle the copying of logic data into a new object, including internal logic links update.
  * External links (links between logic bricks of different objects) must be handled separately.
  */
-void BKE_sca_logic_copy(Object *ob_new, const Object *ob)
+void BKE_sca_logic_copy(Object *ob_new, const Object *ob, const int flag)
 {
-	copy_sensors(&ob_new->sensors, &ob->sensors);
-	copy_controllers(&ob_new->controllers, &ob->controllers);
-	copy_actuators(&ob_new->actuators, &ob->actuators);
+	copy_sensors(&ob_new->sensors, &ob->sensors, flag);
+	copy_controllers(&ob_new->controllers, &ob->controllers, flag);
+	copy_actuators(&ob_new->actuators, &ob->actuators, flag);
 
 	for (bSensor *sens = ob_new->sensors.first; sens; sens = sens->next) {
 		if (sens->flag & SENS_NEW) {
diff --git a/source/blender/blenkernel/intern/scene.c b/source/blender/blenkernel/intern/scene.c
index a15f270a3ee..c0dcac33656 100644
--- a/source/blender/blenkernel/intern/scene.c
+++ b/source/blender/blenkernel/intern/scene.c
@@ -125,17 +125,6 @@ void free_avicodecdata(AviCodecData *acd)
 	}
 }
 
-void free_qtcodecdata(QuicktimeCodecData *qcd)
-{
-	if (qcd) {
-		if (qcd->cdParms) {
-			MEM_freeN(qcd->cdParms);
-			qcd->cdParms = NULL;
-			qcd->cdSize = 0;
-		}
-	}
-}
-
 static void remove_sequencer_fcurves(Scene *sce)
 {
 	AnimData *adt = BKE_animdata_from_id(&sce->id);
@@ -154,223 +143,292 @@ static void remove_sequencer_fcurves(Scene *sce)
 	}
 }
 
-Scene *BKE_scene_copy(Main *bmain, Scene *sce, int type)
-{
-	Scene *scen;
-	SceneRenderLayer *srl, *new_srl;
-	FreestyleLineSet *lineset;
-	ToolSettings *ts;
-	Base *base, *obase;
-	
-	if (type == SCE_COPY_EMPTY) {
-		ListBase rl, rv;
-		scen = BKE_scene_add(bmain, sce->id.name + 2);
-		
-		rl = scen->r.layers;
-		rv = scen->r.views;
-		curvemapping_free_data(&scen->r.mblur_shutter_curve);
-		scen->r = sce->r;
-		scen->r.layers = rl;
-		scen->r.actlay = 0;
-		scen->r.views = rv;
-		scen->unit = sce->unit;
-		scen->physics_settings = sce->physics_settings;
-		scen->gm = sce->gm;
-		scen->audio = sce->audio;
-
-		if (sce->id.properties)
-			scen->id.properties = IDP_CopyProperty(sce->id.properties);
-
-		MEM_freeN(scen->toolsettings);
-		BKE_sound_destroy_scene(scen);
-	}
-	else {
-		scen = BKE_libblock_copy(bmain, &sce->id);
-		BLI_duplicatelist(&(scen->base), &(sce->base));
-		
-		if (type != SCE_COPY_FULL) {
-			id_us_plus((ID *)scen->world);
-		}
-		id_us_plus((ID *)scen->set);
-		/* id_us_plus((ID *)scen->gm.dome.warptext); */  /* XXX Not refcounted? see readfile.c */
-
-		scen->ed = NULL;
-		scen->theDag = NULL;
-		scen->depsgraph = NULL;
-		scen->obedit = NULL;
-		scen->stats = NULL;
-		scen->fps_info = NULL;
-
-		if (sce->rigidbody_world)
-			scen->rigidbody_world = BKE_rigidbody_world_copy(sce->rigidbody_world);
-
-		BLI_duplicatelist(&(scen->markers), &(sce->markers));
-		BLI_duplicatelist(&(scen->transform_spaces), &(sce->transform_spaces));
-		BLI_duplicatelist(&(scen->r.layers), &(sce->r.layers));
-		BLI_duplicatelist(&(scen->r.views), &(sce->r.views));
-		BKE_keyingsets_copy(&(scen->keyingsets), &(sce->keyingsets));
-
-		if (sce->nodetree) {
-			/* ID's are managed on both copy and switch */
-			scen->nodetree = ntreeCopyTree(bmain, sce->nodetree);
-			BKE_libblock_relink_ex(bmain, scen->nodetree, &sce->id, &scen->id, false);
+/**
+ * Only copy internal data of Scene ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_scene_copy_data(Main *bmain, Scene *sce_dst, const Scene *sce_src, const int flag)
+{
+	/* We never handle usercount here for own data. */
+	const int flag_subdata = flag | LIB_ID_CREATE_NO_USER_REFCOUNT;
+
+	sce_dst->ed = NULL;
+	sce_dst->theDag = NULL;
+	sce_dst->depsgraph = NULL;
+	sce_dst->obedit = NULL;
+	sce_dst->stats = NULL;
+	sce_dst->fps_info = NULL;
+
+	BLI_duplicatelist(&(sce_dst->base), &(sce_src->base));
+	for (Base *base_dst = sce_dst->base.first, *base_src = sce_src->base.first;
+	     base_dst;
+	     base_dst = base_dst->next, base_src = base_src->next)
+	{
+		if (base_src == sce_src->basact) {
+			sce_dst->basact = base_dst;
 		}
+	}
 
-		obase = sce->base.first;
-		base = scen->base.first;
-		while (base) {
-			id_us_plus(&base->object->id);
-			if (obase == sce->basact) scen->basact = base;
-	
-			obase = obase->next;
-			base = base->next;
-		}
+	BLI_duplicatelist(&(sce_dst->markers), &(sce_src->markers));
+	BLI_duplicatelist(&(sce_dst->transform_spaces), &(sce_src->transform_spaces));
+	BLI_duplicatelist(&(sce_dst->r.layers), &(sce_src->r.layers));
+	BLI_duplicatelist(&(sce_dst->r.views), &(sce_src->r.views));
+	BKE_keyingsets_copy(&(sce_dst->keyingsets), &(sce_src->keyingsets));
 
-		/* copy action and remove animation used by sequencer */
-		BKE_animdata_copy_id_action(&scen->id, false);
+	if (sce_src->nodetree) {
+		BKE_id_copy_ex(bmain, (ID *)sce_src->nodetree, (ID **)&sce_dst->nodetree, flag, false);
+		BKE_libblock_relink_ex(bmain, sce_dst->nodetree, (void *)(&sce_src->id), &sce_dst->id, false);
+	}
 
-		if (type != SCE_COPY_FULL)
-			remove_sequencer_fcurves(scen);
+	if (sce_src->rigidbody_world) {
+		sce_dst->rigidbody_world = BKE_rigidbody_world_copy(sce_src->rigidbody_world, flag_subdata);
+	}
 
-		/* copy Freestyle settings */
-		new_srl = scen->r.layers.first;
-		for (srl = sce->r.layers.first; srl; srl = srl->next) {
-			if (new_srl->prop != NULL) {
-				new_srl->prop = IDP_CopyProperty(new_srl->prop);
-			}
-			BKE_freestyle_config_copy(&new_srl->freestyleConfig, &srl->freestyleConfig);
-			if (type == SCE_COPY_FULL) {
-				for (lineset = new_srl->freestyleConfig.linesets.first; lineset; lineset = lineset->next) {
-					if (lineset->linestyle) {
-						/* Has been incremented by BKE_freestyle_config_copy(). */
-						id_us_min(&lineset->linestyle->id);
-						lineset->linestyle = BKE_linestyle_copy(bmain, lineset->linestyle);
-					}
-				}
-			}
-			new_srl = new_srl->next;
+	/* copy Freestyle settings */
+	for (SceneRenderLayer *srl_dst = sce_dst->r.layers.first, *srl_src = sce_src->r.layers.first;
+	     srl_src;
+	     srl_dst = srl_dst->next, srl_src = srl_src->next)
+	{
+		if (srl_dst->prop != NULL) {
+			srl_dst->prop = IDP_CopyProperty_ex(srl_dst->prop, flag_subdata);
 		}
+		BKE_freestyle_config_copy(&srl_dst->freestyleConfig, &srl_src->freestyleConfig, flag_subdata);
 	}
 
 	/* copy color management settings */
-	BKE_color_managed_display_settings_copy(&scen->display_settings, &sce->display_settings);
-	BKE_color_managed_view_settings_copy(&scen->view_settings, &sce->view_settings);
-	BKE_color_managed_colorspace_settings_copy(&scen->sequencer_colorspace_settings, &sce->sequencer_colorspace_settings);
+	BKE_color_managed_display_settings_copy(&sce_dst->display_settings, &sce_src->display_settings);
+	BKE_color_managed_view_settings_copy(&sce_dst->view_settings, &sce_src->view_settings);
+	BKE_color_managed_colorspace_settings_copy(&sce_dst->sequencer_colorspace_settings, &sce_src->sequencer_colorspace_settings);
 
-	BKE_color_managed_display_settings_copy(&scen->r.im_format.display_settings, &sce->r.im_format.display_settings);
-	BKE_color_managed_view_settings_copy(&scen->r.im_format.view_settings, &sce->r.im_format.view_settings);
+	BKE_color_managed_display_settings_copy(&sce_dst->r.im_format.display_settings, &sce_src->r.im_format.display_settings);
+	BKE_color_managed_view_settings_copy(&sce_dst->r.im_format.view_settings, &sce_src->r.im_format.view_settings);
 
-	BKE_color_managed_display_settings_copy(&scen->r.bake.im_format.display_settings, &sce->r.bake.im_format.display_settings);
-	BKE_color_managed_view_settings_copy(&scen->r.bake.im_format.view_settings, &sce->r.bake.im_format.view_settings);
+	BKE_color_managed_display_settings_copy(&sce_dst->r.bake.im_format.display_settings, &sce_src->r.bake.im_format.display_settings);
+	BKE_color_managed_view_settings_copy(&sce_dst->r.bake.im_format.view_settings, &sce_src->r.bake.im_format.view_settings);
 
-	curvemapping_copy_data(&scen->r.mblur_shutter_curve, &sce->r.mblur_shutter_curve);
+	curvemapping_copy_data(&sce_dst->r.mblur_shutter_curve, &sce_src->r.mblur_shutter_curve);
 
 	/* tool settings */
-	scen->toolsettings = MEM_dupallocN(sce->toolsettings);
-
-	ts = scen->toolsettings;
-	if (ts) {
+	if (sce_dst->toolsettings != NULL) {
+		ToolSettings *ts = sce_dst->toolsettings = MEM_dupallocN(sce_dst->toolsettings);
 		if (ts->vpaint) {
 			ts->vpaint = MEM_dupallocN(ts->vpaint);
-			ts->vpaint->paintcursor = NULL;
-			ts->vpaint->vpaint_prev = NULL;
-			ts->vpaint->wpaint_prev = NULL;
-			BKE_paint_copy(&ts->vpaint->paint, &ts->vpaint->paint);
+			BKE_paint_copy(&ts->vpaint->paint, &ts->vpaint->paint, flag_subdata);
 		}
 		if (ts->wpaint) {
 			ts->wpaint = MEM_dupallocN(ts->wpaint);
-			ts->wpaint->paintcursor = NULL;
-			ts->wpaint->vpaint_prev = NULL;
-			ts->wpaint->wpaint_prev = NULL;
-			BKE_paint_copy(&ts->wpaint->paint, &ts->wpaint->paint);
+			BKE_paint_copy(&ts->wpaint->paint, &ts->wpaint->paint, flag_subdata);
 		}
 		if (ts->sculpt) {
 			ts->sculpt = MEM_dupallocN(ts->sculpt);
-			BKE_paint_copy(&ts->sculpt->paint, &ts->sculpt->paint);
+			BKE_paint_copy(&ts->sculpt->paint, &ts->sculpt->paint, flag_subdata);
 		}
 		if (ts->uvsculpt) {
 			ts->uvsculpt = MEM_dupallocN(ts->uvsculpt);
-			BKE_paint_copy(&ts->uvsculpt->paint, &ts->uvsculpt->paint);
+			BKE_paint_copy(&ts->uvsculpt->paint, &ts->uvsculpt->paint, flag_subdata);
 		}
 
-		BKE_paint_copy(&ts->imapaint.paint, &ts->imapaint.paint);
+		BKE_paint_copy(&ts->imapaint.paint, &ts->imapaint.paint, flag_subdata);
 		ts->imapaint.paintcursor = NULL;
-		id_us_plus((ID *)ts->imapaint.stencil);
-		id_us_plus((ID *)ts->imapaint.clone);
-		id_us_plus((ID *)ts->imapaint.canvas);
 		ts->particle.paintcursor = NULL;
 		ts->particle.scene = NULL;
 		ts->particle.object = NULL;
-		
+
 		/* duplicate Grease Pencil Drawing Brushes */
 		BLI_listbase_clear(&ts->gp_brushes);
-		for (bGPDbrush *brush = sce->toolsettings->gp_brushes.first; brush; brush = brush->next) {
+		for (bGPDbrush *brush = sce_src->toolsettings->gp_brushes.first; brush; brush = brush->next) {
 			bGPDbrush *newbrush = BKE_gpencil_brush_duplicate(brush);
 			BLI_addtail(&ts->gp_brushes, newbrush);
 		}
-		
+
 		/* duplicate Grease Pencil interpolation curve */
 		ts->gp_interpolate.custom_ipo = curvemapping_copy(ts->gp_interpolate.custom_ipo);
 	}
-	
+
 	/* make a private copy of the avicodecdata */
-	if (sce->r.avicodecdata) {
-		scen->r.avicodecdata = MEM_dupallocN(sce->r.avicodecdata);
-		scen->r.avicodecdata->lpFormat = MEM_dupallocN(scen->r.avicodecdata->lpFormat);
-		scen->r.avicodecdata->lpParms = MEM_dupallocN(scen->r.avicodecdata->lpParms);
-	}
-	
-	/* make a private copy of the qtcodecdata */
-	if (sce->r.qtcodecdata) {
-		scen->r.qtcodecdata = MEM_dupallocN(sce->r.qtcodecdata);
-		scen->r.qtcodecdata->cdParms = MEM_dupallocN(scen->r.qtcodecdata->cdParms);
+	if (sce_src->r.avicodecdata) {
+		sce_dst->r.avicodecdata = MEM_dupallocN(sce_src->r.avicodecdata);
+		sce_dst->r.avicodecdata->lpFormat = MEM_dupallocN(sce_dst->r.avicodecdata->lpFormat);
+		sce_dst->r.avicodecdata->lpParms = MEM_dupallocN(sce_dst->r.avicodecdata->lpParms);
 	}
-	
-	if (sce->r.ffcodecdata.properties) { /* intentionally check scen not sce. */
-		scen->r.ffcodecdata.properties = IDP_CopyProperty(sce->r.ffcodecdata.properties);
+
+	if (sce_src->r.ffcodecdata.properties) { /* intentionally check sce_dst not sce_src. */  /* XXX ??? comment outdated... */
+		sce_dst->r.ffcodecdata.properties = IDP_CopyProperty_ex(sce_src->r.ffcodecdata.properties, flag_subdata);
 	}
 
-	/* NOTE: part of SCE_COPY_LINK_DATA and SCE_COPY_FULL operations
-	 * are done outside of blenkernel with ED_objects_single_users! */
+	/* before scene copy */
+	BKE_sound_create_scene(sce_dst);
 
-	/*  camera */
-	if (type == SCE_COPY_LINK_DATA || type == SCE_COPY_FULL) {
-		ID_NEW_REMAP(scen->camera);
+	/* Copy sequencer, this is local data! */
+	if (sce_src->ed) {
+		sce_dst->ed = MEM_callocN(sizeof(*sce_dst->ed), __func__);
+		sce_dst->ed->seqbasep = &sce_dst->ed->seqbase;
+		BKE_sequence_base_dupli_recursive(
+		            sce_src, sce_dst, &sce_dst->ed->seqbase, &sce_src->ed->seqbase, SEQ_DUPE_ALL, flag_subdata);
 	}
-	
-	/* before scene copy */
-	BKE_sound_create_scene(scen);
 
-	/* world */
-	if (type == SCE_COPY_FULL) {
-		if (scen->world) {
-			scen->world = BKE_world_copy(bmain, scen->world);
-			BKE_animdata_copy_id_action((ID *)scen->world, false);
+	if ((flag & LIB_ID_COPY_NO_PREVIEW) == 0) {
+		BKE_previewimg_id_copy(&sce_dst->id, &sce_src->id);
+	}
+	else {
+		sce_dst->preview = NULL;
+	}
+}
+
+Scene *BKE_scene_copy(Main *bmain, Scene *sce, int type)
+{
+	Scene *sce_copy;
+
+	/* TODO this should/could most likely be replaced by call to more generic code at some point...
+	 * But for now, let's keep it well isolated here. */
+	if (type == SCE_COPY_EMPTY) {
+		ToolSettings *ts;
+		ListBase rl, rv;
+
+		sce_copy = BKE_scene_add(bmain, sce->id.name + 2);
+		
+		rl = sce_copy->r.layers;
+		rv = sce_copy->r.views;
+		curvemapping_free_data(&sce_copy->r.mblur_shutter_curve);
+		sce_copy->r = sce->r;
+		sce_copy->r.layers = rl;
+		sce_copy->r.actlay = 0;
+		sce_copy->r.views = rv;
+		sce_copy->unit = sce->unit;
+		sce_copy->physics_settings = sce->physics_settings;
+		sce_copy->gm = sce->gm;
+		sce_copy->audio = sce->audio;
+
+		if (sce->id.properties)
+			sce_copy->id.properties = IDP_CopyProperty(sce->id.properties);
+
+		MEM_freeN(sce_copy->toolsettings);
+		BKE_sound_destroy_scene(sce_copy);
+
+		/* copy color management settings */
+		BKE_color_managed_display_settings_copy(&sce_copy->display_settings, &sce->display_settings);
+		BKE_color_managed_view_settings_copy(&sce_copy->view_settings, &sce->view_settings);
+		BKE_color_managed_colorspace_settings_copy(&sce_copy->sequencer_colorspace_settings, &sce->sequencer_colorspace_settings);
+
+		BKE_color_managed_display_settings_copy(&sce_copy->r.im_format.display_settings, &sce->r.im_format.display_settings);
+		BKE_color_managed_view_settings_copy(&sce_copy->r.im_format.view_settings, &sce->r.im_format.view_settings);
+
+		BKE_color_managed_display_settings_copy(&sce_copy->r.bake.im_format.display_settings, &sce->r.bake.im_format.display_settings);
+		BKE_color_managed_view_settings_copy(&sce_copy->r.bake.im_format.view_settings, &sce->r.bake.im_format.view_settings);
+
+		curvemapping_copy_data(&sce_copy->r.mblur_shutter_curve, &sce->r.mblur_shutter_curve);
+
+		/* tool settings */
+		sce_copy->toolsettings = MEM_dupallocN(sce->toolsettings);
+
+		ts = sce_copy->toolsettings;
+		if (ts) {
+			if (ts->vpaint) {
+				ts->vpaint = MEM_dupallocN(ts->vpaint);
+				BKE_paint_copy(&ts->vpaint->paint, &ts->vpaint->paint, 0);
+			}
+			if (ts->wpaint) {
+				ts->wpaint = MEM_dupallocN(ts->wpaint);
+				BKE_paint_copy(&ts->wpaint->paint, &ts->wpaint->paint, 0);
+			}
+			if (ts->sculpt) {
+				ts->sculpt = MEM_dupallocN(ts->sculpt);
+				BKE_paint_copy(&ts->sculpt->paint, &ts->sculpt->paint, 0);
+			}
+			if (ts->uvsculpt) {
+				ts->uvsculpt = MEM_dupallocN(ts->uvsculpt);
+				BKE_paint_copy(&ts->uvsculpt->paint, &ts->uvsculpt->paint, 0);
+			}
+
+			BKE_paint_copy(&ts->imapaint.paint, &ts->imapaint.paint, 0);
+			ts->imapaint.paintcursor = NULL;
+			id_us_plus((ID *)ts->imapaint.stencil);
+			id_us_plus((ID *)ts->imapaint.clone);
+			id_us_plus((ID *)ts->imapaint.canvas);
+			ts->particle.paintcursor = NULL;
+			ts->particle.scene = NULL;
+			ts->particle.object = NULL;
+
+			/* duplicate Grease Pencil Drawing Brushes */
+			BLI_listbase_clear(&ts->gp_brushes);
+			for (bGPDbrush *brush = sce->toolsettings->gp_brushes.first; brush; brush = brush->next) {
+				bGPDbrush *newbrush = BKE_gpencil_brush_duplicate(brush);
+				BLI_addtail(&ts->gp_brushes, newbrush);
+			}
+
+			/* duplicate Grease Pencil interpolation curve */
+			ts->gp_interpolate.custom_ipo = curvemapping_copy(ts->gp_interpolate.custom_ipo);
+		}
+
+		/* make a private copy of the avicodecdata */
+		if (sce->r.avicodecdata) {
+			sce_copy->r.avicodecdata = MEM_dupallocN(sce->r.avicodecdata);
+			sce_copy->r.avicodecdata->lpFormat = MEM_dupallocN(sce_copy->r.avicodecdata->lpFormat);
+			sce_copy->r.avicodecdata->lpParms = MEM_dupallocN(sce_copy->r.avicodecdata->lpParms);
 		}
 
-		if (sce->ed) {
-			scen->ed = MEM_callocN(sizeof(Editing), "addseq");
-			scen->ed->seqbasep = &scen->ed->seqbase;
-			BKE_sequence_base_dupli_recursive(sce, scen, &scen->ed->seqbase, &sce->ed->seqbase, SEQ_DUPE_ALL);
+		if (sce->r.ffcodecdata.properties) { /* intentionally check scen not sce. */
+			sce_copy->r.ffcodecdata.properties = IDP_CopyProperty(sce->r.ffcodecdata.properties);
 		}
+
+		/* before scene copy */
+		BKE_sound_create_scene(sce_copy);
+
+		/* grease pencil */
+		sce_copy->gpd = NULL;
+
+		sce_copy->preview = NULL;
+
+		return sce_copy;
 	}
-	
-	/* grease pencil */
-	if (scen->gpd) {
+	else {
+		BKE_id_copy_ex(bmain, (ID *)sce, (ID **)&sce_copy, LIB_ID_COPY_ACTIONS, false);
+
+		/* Extra actions, most notably SCE_FULL_COPY also duplicates several 'children' datablocks... */
+
 		if (type == SCE_COPY_FULL) {
-			scen->gpd = BKE_gpencil_data_duplicate(bmain, scen->gpd, false);
-		}
-		else if (type == SCE_COPY_EMPTY) {
-			scen->gpd = NULL;
+			/* Copy Freestyle LineStyle datablocks. */
+			for (SceneRenderLayer *srl_dst = sce_copy->r.layers.first; srl_dst; srl_dst = srl_dst->next) {
+				for (FreestyleLineSet *lineset = srl_dst->freestyleConfig.linesets.first; lineset; lineset = lineset->next) {
+					if (lineset->linestyle) {
+						/* XXX Not copying anim/actions here? */
+						BKE_id_copy_ex(bmain, (ID *)lineset->linestyle, (ID **)&lineset->linestyle, 0, false);
+					}
+				}
+			}
+
+			/* Full copy of world (included animations) */
+			if (sce_copy->world) {
+				BKE_id_copy_ex(bmain, (ID *)sce_copy->world, (ID **)&sce_copy->world, LIB_ID_COPY_ACTIONS, false);
+			}
+
+			/* Full copy of GreasePencil. */
+			/* XXX Not copying anim/actions here? */
+			if (sce_copy->gpd) {
+				BKE_id_copy_ex(bmain, (ID *)sce_copy->gpd, (ID **)&sce_copy->gpd, 0, false);
+			}
 		}
 		else {
-			id_us_plus((ID *)scen->gpd);
+			/* Remove sequencer if not full copy */
+			/* XXX Why in Hell? :/ */
+			remove_sequencer_fcurves(sce_copy);
+			BKE_sequencer_editing_free(sce_copy);
 		}
-	}
 
-	BKE_previewimg_id_copy(&scen->id, &sce->id);
+		/* NOTE: part of SCE_COPY_LINK_DATA and SCE_COPY_FULL operations
+		 * are done outside of blenkernel with ED_objects_single_users! */
+
+		/*  camera */
+		if (ELEM(type, SCE_COPY_LINK_DATA, SCE_COPY_FULL)) {
+			ID_NEW_REMAP(sce_copy->camera);
+		}
 
-	return scen;
+		return sce_copy;
+	}
 }
 
 void BKE_scene_groups_relink(Scene *sce)
@@ -419,11 +477,6 @@ void BKE_scene_free(Scene *sce)
 		MEM_freeN(sce->r.avicodecdata);
 		sce->r.avicodecdata = NULL;
 	}
-	if (sce->r.qtcodecdata) {
-		free_qtcodecdata(sce->r.qtcodecdata);
-		MEM_freeN(sce->r.qtcodecdata);
-		sce->r.qtcodecdata = NULL;
-	}
 	if (sce->r.ffcodecdata.properties) {
 		IDP_FreeProperty(sce->r.ffcodecdata.properties);
 		MEM_freeN(sce->r.ffcodecdata.properties);
@@ -583,7 +636,7 @@ void BKE_scene_init(Scene *sce)
 
 	sce->r.seq_prev_type = OB_SOLID;
 	sce->r.seq_rend_type = OB_SOLID;
-	sce->r.seq_flag = R_SEQ_GL_PREV;
+	sce->r.seq_flag = 0;
 
 	sce->r.threads = 1;
 
@@ -843,7 +896,7 @@ Scene *BKE_scene_add(Main *bmain, const char *name)
 {
 	Scene *sce;
 
-	sce = BKE_libblock_alloc(bmain, ID_SCE, name);
+	sce = BKE_libblock_alloc(bmain, ID_SCE, name, 0);
 	id_us_min(&sce->id);
 	id_us_ensure_real(&sce->id);
 
@@ -1847,8 +1900,6 @@ void BKE_scene_update_tagged(EvaluationContext *eval_ctx, Main *bmain, Scene *sc
 #endif
 	{
 		DEG_evaluate_on_refresh(eval_ctx, scene->depsgraph, scene);
-		/* TODO(sergey): This is to beocme a node in new depsgraph. */
-		BKE_mask_update_scene(bmain, scene);
 	}
 
 	/* update sound system animation (TODO, move to depsgraph) */
@@ -1965,11 +2016,10 @@ void BKE_scene_update_for_newframe_ex(EvaluationContext *eval_ctx, Main *bmain,
 		/* Following 2 functions are recursive
 		 * so don't call within 'scene_update_tagged_recursive' */
 		DAG_scene_update_flags(bmain, sce, lay, true, do_invisible_flush);   // only stuff that moves or needs display still
+		BKE_mask_evaluate_all_masks(bmain, ctime, true);
 	}
 #endif
 
-	BKE_mask_evaluate_all_masks(bmain, ctime, true);
-
 	/* Update animated cache files for modifiers. */
 	BKE_cachefile_update_frame(bmain, sce, ctime, (((double)sce->r.frs_sec) / (double)sce->r.frs_sec_base));
 
@@ -2318,6 +2368,14 @@ int BKE_scene_num_threads(const Scene *scene)
 	return BKE_render_num_threads(&scene->r);
 }
 
+int BKE_render_preview_pixel_size(const RenderData *r)
+{
+	if (r->preview_pixel_size == 0) {
+		return (U.pixelsize > 1.5f)? 2 : 1;
+	}
+	return r->preview_pixel_size;
+}
+
 /* Apply the needed correction factor to value, based on unit_type (only length-related are affected currently)
  * and unit->scale_length.
  */
diff --git a/source/blender/blenkernel/intern/screen.c b/source/blender/blenkernel/intern/screen.c
index 857bd5447c8..df47b89fadc 100644
--- a/source/blender/blenkernel/intern/screen.c
+++ b/source/blender/blenkernel/intern/screen.c
@@ -181,6 +181,7 @@ ARegion *BKE_area_region_copy(SpaceType *st, ARegion *ar)
 	BLI_listbase_clear(&newar->ui_lists);
 	newar->swinid = 0;
 	newar->regiontimer = NULL;
+	newar->headerstr = NULL;
 	
 	/* use optional regiondata callback */
 	if (ar->regiondata) {
diff --git a/source/blender/blenkernel/intern/sequencer.c b/source/blender/blenkernel/intern/sequencer.c
index 669f76cf90b..9b0db300e6d 100644
--- a/source/blender/blenkernel/intern/sequencer.c
+++ b/source/blender/blenkernel/intern/sequencer.c
@@ -377,6 +377,8 @@ static void seqclipboard_ptr_restore(Main *bmain, ID **id_pt)
 					}
 					break;
 				}
+				default:
+					break;
 			}
 		}
 
@@ -480,9 +482,12 @@ void BKE_sequencer_editing_free(Scene *scene)
 
 static void sequencer_imbuf_assign_spaces(Scene *scene, ImBuf *ibuf)
 {
+#if 0
+	/* Bute buffer is supposed to be in sequencer working space already. */
 	if (ibuf->rect != NULL) {
 		IMB_colormanagement_assign_rect_colorspace(ibuf, scene->sequencer_colorspace_settings.name);
 	}
+#endif
 	if (ibuf->rect_float != NULL) {
 		IMB_colormanagement_assign_float_colorspace(ibuf, scene->sequencer_colorspace_settings.name);
 	}
@@ -3233,7 +3238,7 @@ static ImBuf *seq_render_scene_strip(const SeqRenderData *context, Sequence *seq
 	const bool is_background = G.background;
 	const bool do_seq_gl = is_rendering ?
 	        0 /* (context->scene->r.seq_flag & R_SEQ_GL_REND) */ :
-	        (context->scene->r.seq_flag & R_SEQ_GL_PREV) != 0;
+	        (context->scene->r.seq_prev_type) != OB_RENDER;
 	// bool have_seq = false;  /* UNUSED */
 	bool have_comp = false;
 	bool use_gpencil = true;
@@ -3315,7 +3320,7 @@ static ImBuf *seq_render_scene_strip(const SeqRenderData *context, Sequence *seq
 		}
 	}
 	else {
-		Render *re = RE_GetRender(scene->id.name);
+		Render *re = RE_GetSceneRender(scene);
 		const int totviews = BKE_scene_multiview_num_views_get(&scene->r);
 		int i;
 		ImBuf **ibufs_arr;
@@ -3332,7 +3337,7 @@ static ImBuf *seq_render_scene_strip(const SeqRenderData *context, Sequence *seq
 		 */
 		if (!is_thread_main || is_rendering == false || is_background || context->eval_ctx->mode == DAG_EVAL_RENDER) {
 			if (re == NULL)
-				re = RE_NewRender(scene->id.name);
+				re = RE_NewSceneRender(scene);
 
 			BKE_scene_update_for_newframe(context->eval_ctx, context->bmain, scene, scene->lay);
 			RE_BlenderFrame(re, context->bmain, scene, NULL, camera, scene->lay, frame, false);
@@ -5371,9 +5376,8 @@ Sequence *BKE_sequencer_add_movie_strip(bContext *C, ListBase *seqbasep, SeqLoad
 	return seq;
 }
 
-static Sequence *seq_dupli(Scene *scene, Scene *scene_to, Sequence *seq, int dupe_flag)
+static Sequence *seq_dupli(const Scene *scene_src, Scene *scene_dst, Sequence *seq, int dupe_flag, const int flag)
 {
-	Scene *sce_audio = scene_to ? scene_to : scene;
 	Sequence *seqn = MEM_dupallocN(seq);
 
 	seq->tmp = seqn;
@@ -5397,7 +5401,7 @@ static Sequence *seq_dupli(Scene *scene, Scene *scene_to, Sequence *seq, int dup
 	}
 
 	if (seq->prop) {
-		seqn->prop = IDP_CopyProperty(seq->prop);
+		seqn->prop = IDP_CopyProperty_ex(seq->prop, flag);
 	}
 
 	if (seqn->modifiers.first) {
@@ -5416,7 +5420,7 @@ static Sequence *seq_dupli(Scene *scene, Scene *scene_to, Sequence *seq, int dup
 	else if (seq->type == SEQ_TYPE_SCENE) {
 		seqn->strip->stripdata = NULL;
 		if (seq->scene_sound)
-			seqn->scene_sound = BKE_sound_scene_add_scene_sound_defaults(sce_audio, seqn);
+			seqn->scene_sound = BKE_sound_scene_add_scene_sound_defaults(scene_dst, seqn);
 	}
 	else if (seq->type == SEQ_TYPE_MOVIECLIP) {
 		/* avoid assert */
@@ -5433,9 +5437,11 @@ static Sequence *seq_dupli(Scene *scene, Scene *scene_to, Sequence *seq, int dup
 		seqn->strip->stripdata =
 		        MEM_dupallocN(seq->strip->stripdata);
 		if (seq->scene_sound)
-			seqn->scene_sound = BKE_sound_add_scene_sound_defaults(sce_audio, seqn);
+			seqn->scene_sound = BKE_sound_add_scene_sound_defaults(scene_dst, seqn);
 
-		id_us_plus((ID *)seqn->sound);
+		if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
+			id_us_plus((ID *)seqn->sound);
+		}
 	}
 	else if (seq->type == SEQ_TYPE_IMAGE) {
 		seqn->strip->stripdata =
@@ -5455,11 +5461,15 @@ static Sequence *seq_dupli(Scene *scene, Scene *scene_to, Sequence *seq, int dup
 		BLI_assert(0);
 	}
 
-	if (dupe_flag & SEQ_DUPE_UNIQUE_NAME)
-		BKE_sequence_base_unique_name_recursive(&scene->ed->seqbase, seqn);
+	if (scene_src == scene_dst) {
+		if (dupe_flag & SEQ_DUPE_UNIQUE_NAME) {
+			BKE_sequence_base_unique_name_recursive(&scene_dst->ed->seqbase, seqn);
+		}
 
-	if (dupe_flag & SEQ_DUPE_ANIM)
-		BKE_sequencer_dupe_animdata(scene, seq->name + 2, seqn->name + 2);
+		if (dupe_flag & SEQ_DUPE_ANIM) {
+			BKE_sequencer_dupe_animdata(scene_dst, seq->name + 2, seqn->name + 2);
+		}
+	}
 
 	return seqn;
 }
@@ -5486,16 +5496,16 @@ static void seq_new_fix_links_recursive(Sequence *seq)
 	}
 }
 
-Sequence *BKE_sequence_dupli_recursive(Scene *scene, Scene *scene_to, Sequence *seq, int dupe_flag)
+Sequence *BKE_sequence_dupli_recursive(const Scene *scene_src, Scene *scene_dst, Sequence *seq, int dupe_flag)
 {
 	Sequence *seqn;
 
 	seq->tmp = NULL;
-	seqn = seq_dupli(scene, scene_to, seq, dupe_flag);
+	seqn = seq_dupli(scene_src, scene_dst, seq, dupe_flag, 0);
 	if (seq->type == SEQ_TYPE_META) {
 		Sequence *s;
 		for (s = seq->seqbase.first; s; s = s->next) {
-			Sequence *n = BKE_sequence_dupli_recursive(scene, scene_to, s, dupe_flag);
+			Sequence *n = BKE_sequence_dupli_recursive(scene_src, scene_dst, s, dupe_flag);
 			if (n) {
 				BLI_addtail(&seqn->seqbase, n);
 			}
@@ -5508,19 +5518,19 @@ Sequence *BKE_sequence_dupli_recursive(Scene *scene, Scene *scene_to, Sequence *
 }
 
 void BKE_sequence_base_dupli_recursive(
-        Scene *scene, Scene *scene_to, ListBase *nseqbase, ListBase *seqbase,
-        int dupe_flag)
+        const Scene *scene_src, Scene *scene_dst, ListBase *nseqbase, const ListBase *seqbase,
+        int dupe_flag, const int flag)
 {
 	Sequence *seq;
 	Sequence *seqn = NULL;
-	Sequence *last_seq = BKE_sequencer_active_get(scene);
+	Sequence *last_seq = BKE_sequencer_active_get((Scene *)scene_src);
 	/* always include meta's strips */
 	int dupe_flag_recursive = dupe_flag | SEQ_DUPE_ALL;
 
 	for (seq = seqbase->first; seq; seq = seq->next) {
 		seq->tmp = NULL;
 		if ((seq->flag & SELECT) || (dupe_flag & SEQ_DUPE_ALL)) {
-			seqn = seq_dupli(scene, scene_to, seq, dupe_flag);
+			seqn = seq_dupli(scene_src, scene_dst, seq, dupe_flag, flag);
 			if (seqn) { /*should never fail */
 				if (dupe_flag & SEQ_DUPE_CONTEXT) {
 					seq->flag &= ~SEQ_ALLSEL;
@@ -5530,13 +5540,13 @@ void BKE_sequence_base_dupli_recursive(
 				BLI_addtail(nseqbase, seqn);
 				if (seq->type == SEQ_TYPE_META) {
 					BKE_sequence_base_dupli_recursive(
-					        scene, scene_to, &seqn->seqbase, &seq->seqbase,
-					        dupe_flag_recursive);
+					        scene_src, scene_dst, &seqn->seqbase, &seq->seqbase,
+					        dupe_flag_recursive, flag);
 				}
 
 				if (dupe_flag & SEQ_DUPE_CONTEXT) {
 					if (seq == last_seq) {
-						BKE_sequencer_active_set(scene, seqn);
+						BKE_sequencer_active_set(scene_dst, seqn);
 					}
 				}
 			}
diff --git a/source/blender/blenkernel/intern/shrinkwrap.c b/source/blender/blenkernel/intern/shrinkwrap.c
index 7094d5a3547..f9d1793d7cb 100644
--- a/source/blender/blenkernel/intern/shrinkwrap.c
+++ b/source/blender/blenkernel/intern/shrinkwrap.c
@@ -152,6 +152,9 @@ static void shrinkwrap_calc_nearest_vertex(ShrinkwrapCalcData *calc)
 	BVHTreeFromMesh treeData = NULL_BVHTreeFromMesh;
 	BVHTreeNearest nearest  = NULL_BVHTreeNearest;
 
+	if (calc->target != NULL && calc->target->getNumVerts(calc->target) == 0) {
+		return;
+	}
 
 	TIMEIT_BENCH(bvhtree_from_mesh_verts(&treeData, calc->target, 0.0, 2, 6), bvhtree_verts);
 	if (treeData.tree == NULL) {
@@ -376,6 +379,9 @@ static void shrinkwrap_calc_normal_projection(ShrinkwrapCalcData *calc, bool for
 	if ((calc->smd->shrinkOpts & (MOD_SHRINKWRAP_PROJECT_ALLOW_POS_DIR | MOD_SHRINKWRAP_PROJECT_ALLOW_NEG_DIR)) == 0)
 		return;
 
+	if (calc->target != NULL && calc->target->getNumPolys(calc->target) == 0) {
+		return;
+	}
 
 	/* Prepare data to retrieve the direction in which we should project each vertex */
 	if (calc->smd->projAxis == MOD_SHRINKWRAP_PROJECT_OVER_NORMAL) {
@@ -432,7 +438,7 @@ static void shrinkwrap_calc_normal_projection(ShrinkwrapCalcData *calc, bool for
 	if (targ_tree) {
 		BVHTree *aux_tree = NULL;
 		void *aux_callback = NULL;
-		if (auxMesh != NULL) {
+		if (auxMesh != NULL && auxMesh->getNumPolys(auxMesh) != 0) {
 			/* use editmesh to avoid array allocation */
 			if (calc->smd->auxTarget && auxMesh->type == DM_TYPE_EDITBMESH) {
 				emaux = BKE_editmesh_from_object(calc->smd->auxTarget);
@@ -560,6 +566,10 @@ static void shrinkwrap_calc_nearest_surface_point(ShrinkwrapCalcData *calc)
 	BVHTreeFromMesh treeData = NULL_BVHTreeFromMesh;
 	BVHTreeNearest nearest  = NULL_BVHTreeNearest;
 
+	if (calc->target->getNumPolys(calc->target) == 0) {
+		return;
+	}
+
 	/* Create a bvh-tree of the given target */
 	bvhtree_from_mesh_looptri(&treeData, calc->target, 0.0, 2, 6);
 	if (treeData.tree == NULL) {
diff --git a/source/blender/blenkernel/intern/smoke.c b/source/blender/blenkernel/intern/smoke.c
index d0ef5cfc092..adecea7080c 100644
--- a/source/blender/blenkernel/intern/smoke.c
+++ b/source/blender/blenkernel/intern/smoke.c
@@ -2692,7 +2692,6 @@ static void smokeModifier_process(SmokeModifierData *smd, Scene *scene, Object *
 
 		if (smd->flow->dm) smd->flow->dm->release(smd->flow->dm);
 		smd->flow->dm = CDDM_copy(dm);
-		DM_ensure_looptri(smd->flow->dm);
 
 		if (scene->r.cfra > smd->time)
 		{
@@ -2715,7 +2714,6 @@ static void smokeModifier_process(SmokeModifierData *smd, Scene *scene, Object *
 				smd->coll->dm->release(smd->coll->dm);
 
 			smd->coll->dm = CDDM_copy(dm);
-			DM_ensure_looptri(smd->coll->dm);
 		}
 
 		smd->time = scene->r.cfra;
diff --git a/source/blender/blenkernel/intern/sound.c b/source/blender/blenkernel/intern/sound.c
index 8469351c54a..45d1f969d64 100644
--- a/source/blender/blenkernel/intern/sound.c
+++ b/source/blender/blenkernel/intern/sound.c
@@ -83,7 +83,7 @@ bSound *BKE_sound_new_file(struct Main *bmain, const char *filepath)
 
 	BLI_path_abs(str, path);
 
-	sound = BKE_libblock_alloc(bmain, ID_SO, BLI_path_basename(filepath));
+	sound = BKE_libblock_alloc(bmain, ID_SO, BLI_path_basename(filepath), 0);
 	BLI_strncpy(sound->name, filepath, FILE_MAX);
 	/* sound->type = SOUND_TYPE_FILE; */ /* XXX unused currently */
 
@@ -155,6 +155,34 @@ void BKE_sound_free(bSound *sound)
 	}
 }
 
+/**
+ * Only copy internal data of Sound ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_sound_copy_data(Main *bmain, bSound *sound_dst, const bSound *UNUSED(sound_src), const int UNUSED(flag))
+{
+	sound_dst->handle = NULL;
+	sound_dst->cache = NULL;
+	sound_dst->waveform = NULL;
+	sound_dst->playback_handle = NULL;
+	sound_dst->spinlock = NULL;  /* Think this is OK? Otherwise, easy to create new spinlock here... */
+
+	/* Just to be sure, should not have any value actually after reading time. */
+	sound_dst->ipo = NULL;
+	sound_dst->newpackedfile = NULL;
+
+	if (sound_dst->packedfile) {
+		sound_dst->packedfile = dupPackedFile(sound_dst->packedfile);
+	}
+
+	/* Initialize whole runtime (audaspace) stuff. */
+	BKE_sound_load(bmain, sound_dst);
+}
+
 void BKE_sound_make_local(Main *bmain, bSound *sound, const bool lib_local)
 {
 	BKE_id_make_local_generic(bmain, &sound->id, true, lib_local);
diff --git a/source/blender/blenkernel/intern/speaker.c b/source/blender/blenkernel/intern/speaker.c
index d00e4b1a0d2..9d604a9382a 100644
--- a/source/blender/blenkernel/intern/speaker.c
+++ b/source/blender/blenkernel/intern/speaker.c
@@ -61,25 +61,31 @@ void *BKE_speaker_add(Main *bmain, const char *name)
 {
 	Speaker *spk;
 
-	spk =  BKE_libblock_alloc(bmain, ID_SPK, name);
+	spk =  BKE_libblock_alloc(bmain, ID_SPK, name, 0);
 
 	BKE_speaker_init(spk);
 
 	return spk;
 }
 
-Speaker *BKE_speaker_copy(Main *bmain, const Speaker *spk)
+/**
+ * Only copy internal data of Speaker ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_speaker_copy_data(Main *UNUSED(bmain), Speaker *UNUSED(spk_dst), const Speaker *UNUSED(spk_src), const int UNUSED(flag))
 {
-	Speaker *spkn;
-
-	spkn = BKE_libblock_copy(bmain, &spk->id);
-
-	if (spkn->sound)
-		id_us_plus(&spkn->sound->id);
-
-	BKE_id_copy_ensure_local(bmain, &spk->id, &spkn->id);
+	/* Nothing to do! */
+}
 
-	return spkn;
+Speaker *BKE_speaker_copy(Main *bmain, const Speaker *spk)
+{
+	Speaker *spk_copy;
+	BKE_id_copy_ex(bmain, &spk->id, (ID **)&spk_copy, 0, false);
+	return spk_copy;
 }
 
 void BKE_speaker_make_local(Main *bmain, Speaker *spk, const bool lib_local)
diff --git a/source/blender/blenkernel/intern/subsurf_ccg.c b/source/blender/blenkernel/intern/subsurf_ccg.c
index c4665c40ec4..7c5ee42b7bc 100644
--- a/source/blender/blenkernel/intern/subsurf_ccg.c
+++ b/source/blender/blenkernel/intern/subsurf_ccg.c
@@ -42,6 +42,8 @@
 #include <math.h>
 #include <float.h>
 
+#include "atomic_ops.h"
+
 #include "MEM_guardedalloc.h"
 
 #include "DNA_mesh_types.h"
@@ -3681,6 +3683,11 @@ static void ccgDM_drawMappedFaces(DerivedMesh *dm,
 	int gridFaces = gridSize - 1, totface;
 	int prev_mat_nr = -1;
 
+	if (ccgdm->pbvh) {
+		if (G.debug_value == 14)
+			BKE_pbvh_draw_BB(ccgdm->pbvh);
+	}
+
 #ifdef WITH_OPENSUBDIV
 	if (ccgdm->useGpuBackend) {
 		int new_matnr;
@@ -4414,7 +4421,8 @@ static struct PBVH *ccgDM_getPBVH(Object *ob, DerivedMesh *dm)
 	if (!ob->sculpt)
 		return NULL;
 
-	grid_pbvh = ccgDM_use_grid_pbvh(ccgdm);
+	/* In vwpaint, we always use a grid_pbvh for multires/subsurf */
+	grid_pbvh = (!(ob->mode & OB_MODE_SCULPT) || ccgDM_use_grid_pbvh(ccgdm));
 
 	if (ob->sculpt->pbvh) {
 		if (grid_pbvh) {
@@ -4430,12 +4438,18 @@ static struct PBVH *ccgDM_getPBVH(Object *ob, DerivedMesh *dm)
 		ccgdm->pbvh = ob->sculpt->pbvh;
 	}
 
-	if (ccgdm->pbvh)
+	if (ccgdm->pbvh) {
+		/* For vertex paint, keep track of ccgdm */
+		if (!(ob->mode & OB_MODE_SCULPT)) {
+			BKE_pbvh_set_ccgdm(ccgdm->pbvh, ccgdm);
+		}
 		return ccgdm->pbvh;
+	}
 
 	/* no pbvh exists yet, we need to create one. only in case of multires
 	 * we build a pbvh over the modified mesh, in other cases the base mesh
 	 * is being sculpted, so we build a pbvh from that. */
+	/* Note: vwpaint always builds a pbvh over the modified mesh. */
 	if (grid_pbvh) {
 		ccgdm_create_grids(dm);
 
@@ -4466,6 +4480,10 @@ static struct PBVH *ccgDM_getPBVH(Object *ob, DerivedMesh *dm)
 	if (ccgdm->pbvh)
 		pbvh_show_diffuse_color_set(ccgdm->pbvh, ob->sculpt->show_diffuse_color);
 
+	/* For vertex paint, keep track of ccgdm */
+	if (!(ob->mode & OB_MODE_SCULPT) && ccgdm->pbvh) {
+		BKE_pbvh_set_ccgdm(ccgdm->pbvh, ccgdm);
+	}
 	return ccgdm->pbvh;
 }
 
@@ -4474,16 +4492,17 @@ static void ccgDM_recalcTessellation(DerivedMesh *UNUSED(dm))
 	/* Nothing to do: CCG handles creating its own tessfaces */
 }
 
+/* WARNING! *MUST* be called in an 'loops_cache_rwlock' protected thread context! */
 static void ccgDM_recalcLoopTri(DerivedMesh *dm)
 {
-	BLI_rw_mutex_lock(&loops_cache_rwlock, THREAD_LOCK_WRITE);
-	MLoopTri *mlooptri;
+	MLoopTri *mlooptri = dm->looptris.array;
 	const int tottri = dm->numPolyData * 2;
 	int i, poly_index;
 
 	DM_ensure_looptri_data(dm);
-	mlooptri = dm->looptris.array;
+	mlooptri = dm->looptris.array_wip;
 
+	BLI_assert(tottri == 0 || mlooptri != NULL);
 	BLI_assert(poly_to_tri_count(dm->numPolyData, dm->numLoopData) == dm->looptris.num);
 	BLI_assert(tottri == dm->looptris.num);
 
@@ -4502,19 +4521,10 @@ static void ccgDM_recalcLoopTri(DerivedMesh *dm)
 		lt->tri[2] = (poly_index * 4) + 2;
 		lt->poly = poly_index;
 	}
-	BLI_rw_mutex_unlock(&loops_cache_rwlock);
-}
 
-static const MLoopTri *ccgDM_getLoopTriArray(DerivedMesh *dm)
-{
-	if (dm->looptris.array) {
-		BLI_assert(poly_to_tri_count(dm->numPolyData, dm->numLoopData) == dm->looptris.num);
-	}
-	else {
-		dm->recalcLoopTri(dm);
-	}
-
-	return dm->looptris.array;
+	BLI_assert(dm->looptris.array == NULL);
+	atomic_cas_ptr((void **)&dm->looptris.array, dm->looptris.array, dm->looptris.array_wip);
+	dm->looptris.array_wip = NULL;
 }
 
 static void ccgDM_calcNormals(DerivedMesh *dm)
@@ -4533,8 +4543,6 @@ static void set_default_ccgdm_callbacks(CCGDerivedMesh *ccgdm)
 	ccgdm->dm.getNumPolys = ccgDM_getNumPolys;
 	ccgdm->dm.getNumTessFaces = ccgDM_getNumTessFaces;
 
-	ccgdm->dm.getLoopTriArray = ccgDM_getLoopTriArray;
-
 	ccgdm->dm.getVert = ccgDM_getFinalVert;
 	ccgdm->dm.getEdge = ccgDM_getFinalEdge;
 	ccgdm->dm.getTessFace = ccgDM_getFinalFace;
diff --git a/source/blender/blenkernel/intern/text.c b/source/blender/blenkernel/intern/text.c
index 466bef7ff36..7c4aa81ee46 100644
--- a/source/blender/blenkernel/intern/text.c
+++ b/source/blender/blenkernel/intern/text.c
@@ -224,7 +224,7 @@ Text *BKE_text_add(Main *bmain, const char *name)
 {
 	Text *ta;
 
-	ta = BKE_libblock_alloc(bmain, ID_TXT, name);
+	ta = BKE_libblock_alloc(bmain, ID_TXT, name, 0);
 
 	BKE_text_init(ta);
 
@@ -410,7 +410,7 @@ Text *BKE_text_load_ex(Main *bmain, const char *file, const char *relpath, const
 		return false;
 	}
 
-	ta = BKE_libblock_alloc(bmain, ID_TXT, BLI_path_basename(filepath_abs));
+	ta = BKE_libblock_alloc(bmain, ID_TXT, BLI_path_basename(filepath_abs), 0);
 	ta->id.us = 0;
 
 	BLI_listbase_clear(&ta->lines);
@@ -449,53 +449,49 @@ Text *BKE_text_load(Main *bmain, const char *file, const char *relpath)
 	return BKE_text_load_ex(bmain, file, relpath, false);
 }
 
-Text *BKE_text_copy(Main *bmain, const Text *ta)
+/**
+ * Only copy internal data of Text ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_text_copy_data(Main *UNUSED(bmain), Text *ta_dst, const Text *ta_src, const int UNUSED(flag))
 {
-	Text *tan;
-	TextLine *line, *tmp;
-	
-	tan = BKE_libblock_copy(bmain, &ta->id);
-	
 	/* file name can be NULL */
-	if (ta->name) {
-		tan->name = BLI_strdup(ta->name);
-	}
-	else {
-		tan->name = NULL;
+	if (ta_src->name) {
+		ta_dst->name = BLI_strdup(ta_src->name);
 	}
 
-	tan->flags = ta->flags | TXT_ISDIRTY;
-	
-	BLI_listbase_clear(&tan->lines);
-	tan->curl = tan->sell = NULL;
-	tan->compiled = NULL;
-	
-	tan->nlines = ta->nlines;
+	ta_dst->flags |= TXT_ISDIRTY;
+
+	BLI_listbase_clear(&ta_dst->lines);
+	ta_dst->curl = ta_dst->sell = NULL;
+	ta_dst->compiled = NULL;
 
-	line = ta->lines.first;
 	/* Walk down, reconstructing */
-	while (line) {
-		tmp = (TextLine *) MEM_mallocN(sizeof(TextLine), "textline");
-		tmp->line = MEM_mallocN(line->len + 1, "textline_string");
-		tmp->format = NULL;
-		
-		strcpy(tmp->line, line->line);
+	for (TextLine *line_src = ta_src->lines.first; line_src; line_src = line_src->next) {
+		TextLine *line_dst = MEM_mallocN(sizeof(*line_dst), __func__);
 
-		tmp->len = line->len;
-		
-		BLI_addtail(&tan->lines, tmp);
-		
-		line = line->next;
-	}
+		line_dst->line = BLI_strdup(line_src->line);
+		line_dst->format = NULL;
+		line_dst->len = line_src->len;
 
-	tan->curl = tan->sell = tan->lines.first;
-	tan->curc = tan->selc = 0;
+		BLI_addtail(&ta_dst->lines, line_dst);
+	}
 
-	init_undo_text(tan);
+	ta_dst->curl = ta_dst->sell = ta_dst->lines.first;
+	ta_dst->curc = ta_dst->selc = 0;
 
-	BKE_id_copy_ensure_local(bmain, &ta->id, &tan->id);
+	init_undo_text(ta_dst);
+}
 
-	return tan;
+Text *BKE_text_copy(Main *bmain, const Text *ta)
+{
+	Text *ta_copy;
+	BKE_id_copy_ex(bmain, &ta->id, (ID **)&ta_copy, 0, false);
+	return ta_copy;
 }
 
 void BKE_text_make_local(Main *bmain, Text *text, const bool lib_local)
diff --git a/source/blender/blenkernel/intern/texture.c b/source/blender/blenkernel/intern/texture.c
index 1e0659d3d67..8f0334a4752 100644
--- a/source/blender/blenkernel/intern/texture.c
+++ b/source/blender/blenkernel/intern/texture.c
@@ -707,7 +707,7 @@ Tex *BKE_texture_add(Main *bmain, const char *name)
 {
 	Tex *tex;
 
-	tex = BKE_libblock_alloc(bmain, ID_TE, name);
+	tex = BKE_libblock_alloc(bmain, ID_TE, name, 0);
 	
 	BKE_texture_default(tex);
 	
@@ -846,41 +846,71 @@ MTex *BKE_texture_mtex_add_id(ID *id, int slot)
 
 /* ------------------------------------------------------------------------- */
 
-Tex *BKE_texture_copy(Main *bmain, const Tex *tex)
+/**
+ * Only copy internal data of Texture ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_texture_copy_data(Main *bmain, Tex *tex_dst, const Tex *tex_src, const int flag)
 {
-	Tex *texn;
-	
-	texn = BKE_libblock_copy(bmain, &tex->id);
-	if (BKE_texture_is_image_user(tex)) {
-		id_us_plus((ID *)texn->ima);
+	/* We never handle usercount here for own data. */
+	const int flag_subdata = flag | LIB_ID_CREATE_NO_USER_REFCOUNT;
+
+	if (!BKE_texture_is_image_user(tex_src)) {
+		tex_dst->ima = NULL;
 	}
-	else {
-		texn->ima = NULL;
+
+	if (tex_dst->coba) {
+		tex_dst->coba = MEM_dupallocN(tex_dst->coba);
+	}
+	if (tex_dst->env) {
+		tex_dst->env = BKE_texture_envmap_copy(tex_dst->env, flag_subdata);
+	}
+	if (tex_dst->pd) {
+		tex_dst->pd = BKE_texture_pointdensity_copy(tex_dst->pd, flag_subdata);
+	}
+	if (tex_dst->vd) {
+		tex_dst->vd = MEM_dupallocN(tex_dst->vd);
+	}
+	if (tex_dst->ot) {
+		tex_dst->ot = BKE_texture_ocean_copy(tex_dst->ot, flag_subdata);
 	}
-	
-	if (texn->coba) texn->coba = MEM_dupallocN(texn->coba);
-	if (texn->env) texn->env = BKE_texture_envmap_copy(texn->env);
-	if (texn->pd) texn->pd = BKE_texture_pointdensity_copy(texn->pd);
-	if (texn->vd) texn->vd = MEM_dupallocN(texn->vd);
-	if (texn->ot) texn->ot = BKE_texture_ocean_copy(texn->ot);
 
-	if (tex->nodetree) {
-		if (tex->nodetree->execdata) {
-			ntreeTexEndExecTree(tex->nodetree->execdata);
+	if (tex_src->nodetree) {
+		if (tex_src->nodetree->execdata) {
+			ntreeTexEndExecTree(tex_src->nodetree->execdata);
 		}
-		texn->nodetree = ntreeCopyTree(bmain, tex->nodetree);
+		BKE_id_copy_ex(bmain, (ID *)tex_src->nodetree, (ID **)&tex_dst->nodetree, flag, false);
 	}
 
-	BKE_previewimg_id_copy(&texn->id, &tex->id);
-
-	BKE_id_copy_ensure_local(bmain, &tex->id, &texn->id);
+	if ((flag & LIB_ID_COPY_NO_PREVIEW) == 0) {
+		BKE_previewimg_id_copy(&tex_dst->id, &tex_src->id);
+	}
+	else {
+		tex_dst->preview = NULL;
+	}
+}
 
-	return texn;
+Tex *BKE_texture_copy(Main *bmain, const Tex *tex)
+{
+	Tex *tex_copy;
+	BKE_id_copy_ex(bmain, &tex->id, (ID **)&tex_copy, 0, false);
+	return tex_copy;
 }
 
 /* texture copy without adding to main dbase */
 Tex *BKE_texture_localize(Tex *tex)
 {
+	/* TODO replace with something like
+	 * 	Tex *tex_copy;
+	 * 	BKE_id_copy_ex(bmain, &tex->id, (ID **)&tex_copy, LIB_ID_COPY_NO_MAIN | LIB_ID_COPY_NO_PREVIEW | LIB_ID_COPY_NO_USER_REFCOUNT, false);
+	 * 	return tex_copy;
+	 *
+	 * ... Once f*** nodes are fully converted to that too :( */
+
 	Tex *texn;
 	
 	texn = BKE_libblock_copy_nolib(&tex->id, false);
@@ -889,17 +919,17 @@ Tex *BKE_texture_localize(Tex *tex)
 	
 	if (texn->coba) texn->coba = MEM_dupallocN(texn->coba);
 	if (texn->env) {
-		texn->env = BKE_texture_envmap_copy(texn->env);
+		texn->env = BKE_texture_envmap_copy(texn->env, LIB_ID_CREATE_NO_USER_REFCOUNT);
 		id_us_min(&texn->env->ima->id);
 	}
-	if (texn->pd) texn->pd = BKE_texture_pointdensity_copy(texn->pd);
+	if (texn->pd) texn->pd = BKE_texture_pointdensity_copy(texn->pd, LIB_ID_CREATE_NO_USER_REFCOUNT);
 	if (texn->vd) {
 		texn->vd = MEM_dupallocN(texn->vd);
 		if (texn->vd->dataset)
 			texn->vd->dataset = MEM_dupallocN(texn->vd->dataset);
 	}
 	if (texn->ot) {
-		texn->ot = BKE_texture_ocean_copy(tex->ot);
+		texn->ot = BKE_texture_ocean_copy(tex->ot, LIB_ID_CREATE_NO_USER_REFCOUNT);
 	}
 	
 	texn->preview = NULL;
@@ -1099,6 +1129,8 @@ void set_active_mtex(ID *id, short act)
 		case ID_PA:
 			((ParticleSettings *)id)->texact = act;
 			break;
+		default:
+			break;
 	}
 }
 
@@ -1263,16 +1295,20 @@ EnvMap *BKE_texture_envmap_add(void)
 
 /* ------------------------------------------------------------------------- */
 
-EnvMap *BKE_texture_envmap_copy(const EnvMap *env)
+EnvMap *BKE_texture_envmap_copy(const EnvMap *env, const int flag)
 {
 	EnvMap *envn;
 	int a;
 	
 	envn = MEM_dupallocN(env);
 	envn->ok = 0;
-	for (a = 0; a < 6; a++) envn->cube[a] = NULL;
-	if (envn->ima) id_us_plus((ID *)envn->ima);
-	
+	for (a = 0; a < 6; a++) {
+		envn->cube[a] = NULL;
+	}
+	if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
+		id_us_plus((ID *)envn->ima);
+	}
+
 	return envn;
 }
 
@@ -1336,14 +1372,16 @@ PointDensity *BKE_texture_pointdensity_add(void)
 	return pd;
 } 
 
-PointDensity *BKE_texture_pointdensity_copy(const PointDensity *pd)
+PointDensity *BKE_texture_pointdensity_copy(const PointDensity *pd, const int UNUSED(flag))
 {
 	PointDensity *pdn;
 
 	pdn = MEM_dupallocN(pd);
 	pdn->point_tree = NULL;
 	pdn->point_data = NULL;
-	if (pdn->coba) pdn->coba = MEM_dupallocN(pdn->coba);
+	if (pdn->coba) {
+		pdn->coba = MEM_dupallocN(pdn->coba);
+	}
 	pdn->falloff_curve = curvemapping_copy(pdn->falloff_curve); /* can be NULL */
 	return pdn;
 }
@@ -1430,7 +1468,7 @@ OceanTex *BKE_texture_ocean_add(void)
 	return ot;
 }
 
-OceanTex *BKE_texture_ocean_copy(const OceanTex *ot)
+OceanTex *BKE_texture_ocean_copy(const OceanTex *ot, const int UNUSED(flag))
 {
 	OceanTex *otn = MEM_dupallocN(ot);
 	
diff --git a/source/blender/blenkernel/intern/tracking.c b/source/blender/blenkernel/intern/tracking.c
index 9120d384a16..b4ef381534f 100644
--- a/source/blender/blenkernel/intern/tracking.c
+++ b/source/blender/blenkernel/intern/tracking.c
@@ -190,7 +190,7 @@ void BKE_tracking_free(MovieTracking *tracking)
 }
 
 /* Copy the whole list of tracks. */
-static void tracking_tracks_copy(ListBase *tracks_dst, const ListBase *tracks_src, GHash *tracks_mapping)
+static void tracking_tracks_copy(ListBase *tracks_dst, const ListBase *tracks_src, GHash *tracks_mapping, const int flag)
 {
 	MovieTrackingTrack *track_dst, *track_src;
 
@@ -202,7 +202,9 @@ static void tracking_tracks_copy(ListBase *tracks_dst, const ListBase *tracks_sr
 		if (track_src->markers) {
 			track_dst->markers = MEM_dupallocN(track_src->markers);
 		}
-		id_us_plus(&track_dst->gpd->id);
+		if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
+			id_us_plus(&track_dst->gpd->id);
+		}
 		BLI_addtail(tracks_dst, track_dst);
 		BLI_ghash_insert(tracks_mapping, track_src, track_dst);
 	}
@@ -210,7 +212,8 @@ static void tracking_tracks_copy(ListBase *tracks_dst, const ListBase *tracks_sr
 
 /* copy the whole list of plane tracks (need whole MovieTracking structures due to embedded pointers to tracks).
  * WARNING: implies tracking_[dst/src] and their tracks have already been copied. */
-static void tracking_plane_tracks_copy(ListBase *plane_tracks_dst, const ListBase *plane_tracks_src, GHash *tracks_mapping)
+static void tracking_plane_tracks_copy(
+        ListBase *plane_tracks_dst, const ListBase *plane_tracks_src, GHash *tracks_mapping, const int flag)
 {
 	MovieTrackingPlaneTrack *plane_track_dst, *plane_track_src;
 
@@ -225,14 +228,17 @@ static void tracking_plane_tracks_copy(ListBase *plane_tracks_dst, const ListBas
 		for (int i = 0; i < plane_track_dst->point_tracksnr; i++) {
 			plane_track_dst->point_tracks[i] = BLI_ghash_lookup(tracks_mapping, plane_track_src->point_tracks[i]);
 		}
-		id_us_plus(&plane_track_dst->image->id);
+		if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
+			id_us_plus(&plane_track_dst->image->id);
+		}
 		BLI_addtail(plane_tracks_dst, plane_track_dst);
 	}
 }
 
 /* Copy reconstruction structure. */
 static void tracking_reconstruction_copy(
-        MovieTrackingReconstruction *reconstruction_dst, const MovieTrackingReconstruction *reconstruction_src)
+        MovieTrackingReconstruction *reconstruction_dst, const MovieTrackingReconstruction *reconstruction_src,
+        const int UNUSED(flag))
 {
 	*reconstruction_dst = *reconstruction_src;
 	if (reconstruction_src->cameras) {
@@ -242,23 +248,25 @@ static void tracking_reconstruction_copy(
 
 /* Copy stabilization structure. */
 static void tracking_stabilization_copy(
-        MovieTrackingStabilization *stabilization_dst, const MovieTrackingStabilization *stabilization_src)
+        MovieTrackingStabilization *stabilization_dst, const MovieTrackingStabilization *stabilization_src,
+        const int UNUSED(flag))
 {
 	*stabilization_dst = *stabilization_src;
 }
 
 /* Copy tracking object. */
 static void tracking_object_copy(
-        MovieTrackingObject *object_dst, const MovieTrackingObject *object_src, GHash *tracks_mapping)
+        MovieTrackingObject *object_dst, const MovieTrackingObject *object_src, GHash *tracks_mapping, const int flag)
 {
 	*object_dst = *object_src;
-	tracking_tracks_copy(&object_dst->tracks, &object_src->tracks, tracks_mapping);
-	tracking_plane_tracks_copy(&object_dst->plane_tracks, &object_src->plane_tracks, tracks_mapping);
-	tracking_reconstruction_copy(&object_dst->reconstruction, &object_src->reconstruction);
+	tracking_tracks_copy(&object_dst->tracks, &object_src->tracks, tracks_mapping, flag);
+	tracking_plane_tracks_copy(&object_dst->plane_tracks, &object_src->plane_tracks, tracks_mapping, flag);
+	tracking_reconstruction_copy(&object_dst->reconstruction, &object_src->reconstruction, flag);
 }
 
 /* Copy list of tracking objects. */
-static void tracking_objects_copy(ListBase *objects_dst, const ListBase *objects_src, GHash *tracks_mapping)
+static void tracking_objects_copy(
+        ListBase *objects_dst, const ListBase *objects_src, GHash *tracks_mapping, const int flag)
 {
 	MovieTrackingObject *object_dst, *object_src;
 
@@ -266,22 +274,22 @@ static void tracking_objects_copy(ListBase *objects_dst, const ListBase *objects
 
 	for (object_src = objects_src->first; object_src != NULL; object_src = object_src->next) {
 		object_dst = MEM_mallocN(sizeof(*object_dst), __func__);
-		tracking_object_copy(object_dst, object_src, tracks_mapping);
+		tracking_object_copy(object_dst, object_src, tracks_mapping, flag);
 		BLI_addtail(objects_dst, object_dst);
 	}
 }
 
 /* Copy tracking structure content. */
-void BKE_tracking_copy(MovieTracking *tracking_dst, const MovieTracking *tracking_src)
+void BKE_tracking_copy(MovieTracking *tracking_dst, const MovieTracking *tracking_src, const int flag)
 {
 	GHash *tracks_mapping = BLI_ghash_ptr_new(__func__);
 
 	*tracking_dst = *tracking_src;
 
-	tracking_tracks_copy(&tracking_dst->tracks, &tracking_src->tracks, tracks_mapping);
-	tracking_plane_tracks_copy(&tracking_dst->plane_tracks, &tracking_src->plane_tracks, tracks_mapping);
-	tracking_reconstruction_copy(&tracking_dst->reconstruction, &tracking_src->reconstruction);
-	tracking_stabilization_copy(&tracking_dst->stabilization, &tracking_src->stabilization);
+	tracking_tracks_copy(&tracking_dst->tracks, &tracking_src->tracks, tracks_mapping, flag);
+	tracking_plane_tracks_copy(&tracking_dst->plane_tracks, &tracking_src->plane_tracks, tracks_mapping, flag);
+	tracking_reconstruction_copy(&tracking_dst->reconstruction, &tracking_src->reconstruction, flag);
+	tracking_stabilization_copy(&tracking_dst->stabilization, &tracking_src->stabilization, flag);
 	if (tracking_src->act_track) {
 		tracking_dst->act_track = BLI_ghash_lookup(tracks_mapping, tracking_src->act_track);
 	}
@@ -299,7 +307,7 @@ void BKE_tracking_copy(MovieTracking *tracking_dst, const MovieTracking *trackin
 	}
 
 	/* Warning! Will override tracks_mapping. */
-	tracking_objects_copy(&tracking_dst->objects, &tracking_src->objects, tracks_mapping);
+	tracking_objects_copy(&tracking_dst->objects, &tracking_src->objects, tracks_mapping, flag);
 
 	/* Those remaining are runtime data, they will be reconstructed as needed, do not bother copying them. */
 	tracking_dst->dopesheet.ok = false;
diff --git a/source/blender/blenkernel/intern/tracking_auto.c b/source/blender/blenkernel/intern/tracking_auto.c
index 9475925cdda..30981ed8f23 100644
--- a/source/blender/blenkernel/intern/tracking_auto.c
+++ b/source/blender/blenkernel/intern/tracking_auto.c
@@ -312,7 +312,7 @@ AutoTrackContext *BKE_autotrack_context_new(MovieClip *clip,
 
 	int num_total_tracks = BLI_listbase_count(tracksbase);
 	context->tracks =
-		MEM_callocN(sizeof(MovieTrackingTrack*) * num_total_tracks,
+		MEM_callocN(sizeof(MovieTrackingTrack *) * num_total_tracks,
 		            "auto track pointers");
 
 	context->image_accessor =
@@ -381,7 +381,7 @@ AutoTrackContext *BKE_autotrack_context_new(MovieClip *clip,
 
 bool BKE_autotrack_context_step(AutoTrackContext *context)
 {
-	int frame_delta = context->backwards ? -1 : 1;
+	const int frame_delta = context->backwards ? -1 : 1;
 	bool ok = false;
 	int track;
 
@@ -395,67 +395,64 @@ bool BKE_autotrack_context_step(AutoTrackContext *context)
 		             libmv_reference_marker,
 		             libmv_tracked_marker;
 		libmv_TrackRegionResult libmv_result;
-		int frame = BKE_movieclip_remap_scene_to_clip_frame(
-			context->clips[options->clip_index],
-			context->user.framenr);
-		bool has_marker;
-
+		const int frame = BKE_movieclip_remap_scene_to_clip_frame(
+		        context->clips[options->clip_index],
+		        context->user.framenr);
 		BLI_spin_lock(&context->spin_lock);
-		has_marker = libmv_autoTrackGetMarker(context->autotrack,
-		                                      options->clip_index,
-		                                      frame,
-		                                      options->track_index,
-		                                      &libmv_current_marker);
+		const bool has_marker = libmv_autoTrackGetMarker(context->autotrack,
+		                                                 options->clip_index,
+		                                                 frame,
+		                                                 options->track_index,
+		                                                 &libmv_current_marker);
 		BLI_spin_unlock(&context->spin_lock);
-
-		if (has_marker) {
-			if (!tracking_check_marker_margin(&libmv_current_marker,
-			                                  options->track->margin,
-			                                  context->frame_width,
-			                                  context->frame_height))
-			{
-				continue;
-			}
-
-			libmv_tracked_marker = libmv_current_marker;
-			libmv_tracked_marker.frame = frame + frame_delta;
-
-			if (options->use_keyframe_match) {
-				libmv_tracked_marker.reference_frame =
-					libmv_current_marker.reference_frame;
-				libmv_autoTrackGetMarker(context->autotrack,
-			                             options->clip_index,
-			                             libmv_tracked_marker.reference_frame,
-			                             options->track_index,
-			                             &libmv_reference_marker);
-			}
-			else {
-				libmv_tracked_marker.reference_frame = frame;
-				libmv_reference_marker = libmv_current_marker;
-			}
-
-			if (libmv_autoTrackMarker(context->autotrack,
-			                          &options->track_region_options,
-			                          &libmv_tracked_marker,
-			                          &libmv_result))
-			{
-				BLI_spin_lock(&context->spin_lock);
-				libmv_autoTrackAddMarker(context->autotrack,
-				                         &libmv_tracked_marker);
-				BLI_spin_unlock(&context->spin_lock);
-			}
-			else {
-				options->is_failed = true;
-				options->failed_frame = frame + frame_delta;
-			}
-			ok = true;
+		/* Check whether we've got marker to sync with. */
+		if (!has_marker) {
+			continue;
+		}
+		/* Check whether marker is going outside of allowed frame margin. */
+		if (!tracking_check_marker_margin(&libmv_current_marker,
+		                                  options->track->margin,
+		                                  context->frame_width,
+		                                  context->frame_height))
+		{
+			continue;
+		}
+		libmv_tracked_marker = libmv_current_marker;
+		libmv_tracked_marker.frame = frame + frame_delta;
+		/* Update reference frame. */
+		if (options->use_keyframe_match) {
+			libmv_tracked_marker.reference_frame =
+			        libmv_current_marker.reference_frame;
+			libmv_autoTrackGetMarker(context->autotrack,
+		                             options->clip_index,
+		                             libmv_tracked_marker.reference_frame,
+		                             options->track_index,
+		                             &libmv_reference_marker);
 		}
+		else {
+			libmv_tracked_marker.reference_frame = frame;
+			libmv_reference_marker = libmv_current_marker;
+		}
+		/* Perform actual tracking. */
+		if (libmv_autoTrackMarker(context->autotrack,
+		                          &options->track_region_options,
+		                          &libmv_tracked_marker,
+		                          &libmv_result))
+		{
+			BLI_spin_lock(&context->spin_lock);
+			libmv_autoTrackAddMarker(context->autotrack, &libmv_tracked_marker);
+			BLI_spin_unlock(&context->spin_lock);
+		}
+		else {
+			options->is_failed = true;
+			options->failed_frame = frame + frame_delta;
+		}
+		ok = true;
 	}
-
+	/* Advance the frame. */
 	BLI_spin_lock(&context->spin_lock);
 	context->user.framenr += frame_delta;
 	BLI_spin_unlock(&context->spin_lock);
-
 	return ok;
 }
 
diff --git a/source/blender/blenkernel/intern/tracking_util.c b/source/blender/blenkernel/intern/tracking_util.c
index a95399562d5..d8e98291117 100644
--- a/source/blender/blenkernel/intern/tracking_util.c
+++ b/source/blender/blenkernel/intern/tracking_util.c
@@ -58,6 +58,15 @@
 
 #include "libmv-capi.h"
 
+/* Uncomment this to have caching-specific debug prints. */
+// #define DEBUG_CACHE
+
+#ifdef DEBUG_CACHE
+#  define CACHE_PRINTF(...) printf(__VA_ARGS__)
+#else
+#  define CACHE_PRINTF(...)
+#endif
+
 /*********************** Tracks map *************************/
 
 TracksMap *tracks_map_new(const char *object_name, bool is_camera, int num_tracks, int customdata_size)
@@ -523,6 +532,8 @@ typedef struct AccessCacheKey {
 	int frame;
 	int downscale;
 	libmv_InputMode input_mode;
+	bool has_region;
+	float region_min[2], region_max[2];
 	int64_t transform_key;
 } AccessCacheKey;
 
@@ -537,23 +548,44 @@ static bool accesscache_hashcmp(const void *a_v, const void *b_v)
 {
 	const AccessCacheKey *a = (const AccessCacheKey *) a_v;
 	const AccessCacheKey *b = (const AccessCacheKey *) b_v;
-
-#define COMPARE_FIELD(field)
-	{ \
-		if (a->clip_index != b->clip_index) { \
-			return false; \
-		} \
-	} (void) 0
-
-	COMPARE_FIELD(clip_index);
-	COMPARE_FIELD(frame);
-	COMPARE_FIELD(downscale);
-	COMPARE_FIELD(input_mode);
-	COMPARE_FIELD(transform_key);
-
-#undef COMPARE_FIELD
-
-	return true;
+	if (a->clip_index != b->clip_index ||
+	    a->frame != b->frame ||
+	    a->downscale != b->downscale ||
+	    a->input_mode != b->input_mode ||
+	    a->has_region != b->has_region ||
+	    a->transform_key != b->transform_key)
+	{
+		return true;
+	}
+	/* If there is region applied, compare it. */
+	if (a->has_region) {
+		if (!equals_v2v2(a->region_min, b->region_min) ||
+		    !equals_v2v2(a->region_max, b->region_max))
+		{
+			return true;
+		}
+	}
+	return false;
+}
+
+static void accesscache_construct_key(AccessCacheKey *key,
+                                      int clip_index,
+                                      int frame,
+                                      libmv_InputMode input_mode,
+                                      int downscale,
+                                      const libmv_Region *region,
+                                      int64_t transform_key)
+{
+	key->clip_index = clip_index;
+	key->frame = frame;
+	key->input_mode = input_mode;
+	key->downscale = downscale;
+	key->has_region = (region != NULL);
+	if (key->has_region) {
+		copy_v2_v2(key->region_min, region->min);
+		copy_v2_v2(key->region_max, region->max);
+	}
+	key->transform_key = transform_key;
 }
 
 static void accesscache_put(TrackingImageAccessor *accessor,
@@ -561,15 +593,13 @@ static void accesscache_put(TrackingImageAccessor *accessor,
                             int frame,
                             libmv_InputMode input_mode,
                             int downscale,
+                            const libmv_Region *region,
                             int64_t transform_key,
                             ImBuf *ibuf)
 {
 	AccessCacheKey key;
-	key.clip_index = clip_index;
-	key.frame = frame;
-	key.input_mode = input_mode;
-	key.downscale = downscale;
-	key.transform_key = transform_key;
+	accesscache_construct_key(&key, clip_index, frame, input_mode, downscale,
+	                          region, transform_key);
 	IMB_moviecache_put(accessor->cache, &key, ibuf);
 }
 
@@ -578,14 +608,12 @@ static ImBuf *accesscache_get(TrackingImageAccessor *accessor,
                               int frame,
                               libmv_InputMode input_mode,
                               int downscale,
+                              const libmv_Region *region,
                               int64_t transform_key)
 {
 	AccessCacheKey key;
-	key.clip_index = clip_index;
-	key.frame = frame;
-	key.input_mode = input_mode;
-	key.downscale = downscale;
-	key.transform_key = transform_key;
+	accesscache_construct_key(&key, clip_index, frame, input_mode, downscale,
+	                          region, transform_key);
 	return IMB_moviecache_get(accessor->cache, &key);
 }
 
@@ -674,29 +702,37 @@ static ImBuf *accessor_get_ibuf(TrackingImageAccessor *accessor,
 {
 	ImBuf *ibuf, *orig_ibuf, *final_ibuf;
 	int64_t transform_key = 0;
-
 	if (transform != NULL) {
 		transform_key = libmv_frameAccessorgetTransformKey(transform);
 	}
-
 	/* First try to get fully processed image from the cache. */
+	BLI_spin_lock(&accessor->cache_lock);
 	ibuf = accesscache_get(accessor,
 	                       clip_index,
 	                       frame,
 	                       input_mode,
 	                       downscale,
+	                       region,
 	                       transform_key);
+	BLI_spin_unlock(&accessor->cache_lock);
 	if (ibuf != NULL) {
+		CACHE_PRINTF("Used cached buffer for frame %d\n", frame);
+		/* This is a little heuristic here: if we re-used image once, this is
+		 * a high probability of the image to be related to a keyframe matched
+		 * reference image. Those images we don't want to be thrown away because
+		 * if we toss them out we'll be re-calculating them at the next
+		 * iteration.
+		 */
+		ibuf->userflags |= IB_PERSISTENT;
 		return ibuf;
 	}
-
+	CACHE_PRINTF("Calculate new buffer for frame %d\n", frame);
 	/* And now we do postprocessing of the original frame. */
 	orig_ibuf = accessor_get_preprocessed_ibuf(accessor, clip_index, frame);
-
 	if (orig_ibuf == NULL) {
 		return NULL;
 	}
-
+	/* Cut a region if requested. */
 	if (region != NULL) {
 		int width = region->max[0] - region->min[0],
 		    height = region->max[1] - region->min[1];
@@ -756,7 +792,7 @@ static ImBuf *accessor_get_ibuf(TrackingImageAccessor *accessor,
 		BLI_unlock_thread(LOCK_MOVIECLIP);
 		final_ibuf = orig_ibuf;
 	}
-
+	/* Downscale if needed. */
 	if (downscale > 0) {
 		if (final_ibuf == orig_ibuf) {
 			final_ibuf = IMB_dupImBuf(orig_ibuf);
@@ -765,7 +801,7 @@ static ImBuf *accessor_get_ibuf(TrackingImageAccessor *accessor,
 		               orig_ibuf->x / (1 << downscale),
 		               orig_ibuf->y / (1 << downscale));
 	}
-
+	/* Apply possible transformation. */
 	if (transform != NULL) {
 		libmv_FloatImage input_image, output_image;
 		ibuf_to_float_image(final_ibuf, &input_image);
@@ -778,12 +814,13 @@ static ImBuf *accessor_get_ibuf(TrackingImageAccessor *accessor,
 		final_ibuf = float_image_to_ibuf(&output_image);
 		libmv_floatImageDestroy(&output_image);
 	}
-
+	/* Transform number of channels. */
 	if (input_mode == LIBMV_IMAGE_MODE_RGBA) {
 		BLI_assert(orig_ibuf->channels == 3 || orig_ibuf->channels == 4);
 		/* pass */
 	}
 	else /* if (input_mode == LIBMV_IMAGE_MODE_MONO) */ {
+		BLI_assert(input_mode == LIBMV_IMAGE_MODE_MONO);
 		if (final_ibuf->channels != 1) {
 			ImBuf *grayscale_ibuf = make_grayscale_ibuf_copy(final_ibuf);
 			if (final_ibuf != orig_ibuf) {
@@ -793,37 +830,25 @@ static ImBuf *accessor_get_ibuf(TrackingImageAccessor *accessor,
 			final_ibuf = grayscale_ibuf;
 		}
 	}
-
-	/* it's possible processing still didn't happen at this point,
+	/* It's possible processing still didn't happen at this point,
 	 * but we really need a copy of the buffer to be transformed
 	 * and to be put to the cache.
 	 */
 	if (final_ibuf == orig_ibuf) {
 		final_ibuf = IMB_dupImBuf(orig_ibuf);
 	}
-
 	IMB_freeImBuf(orig_ibuf);
-
-	/* We put postprocessed frame to the cache always for now,
-	 * not the smartest thing in the world, but who cares at this point.
-	 */
-
-	/* TODO(sergey): Disable cache for now, because we don't store region
-	 * in the cache key and can't check whether cached version is usable for
-	 * us or not.
-	 *
-	 * Need to think better about what to cache and when.
-	 */
-	if (false) {
-		accesscache_put(accessor,
-		                clip_index,
-		                frame,
-		                input_mode,
-		                downscale,
-		                transform_key,
-		                final_ibuf);
-	}
-
+	BLI_spin_lock(&accessor->cache_lock);
+	/* Put final buffer to cache. */
+	accesscache_put(accessor,
+	                clip_index,
+	                frame,
+	                input_mode,
+	                downscale,
+	                region,
+	                transform_key,
+	                final_ibuf);
+	BLI_spin_unlock(&accessor->cache_lock);
 	return final_ibuf;
 }
 
@@ -876,7 +901,7 @@ static void accessor_release_image_callback(libmv_CacheKey cache_key)
 }
 
 static libmv_CacheKey accessor_get_mask_for_track_callback(
-        libmv_FrameAccessorUserData* user_data,
+        libmv_FrameAccessorUserData *user_data,
         int clip_index,
         int frame,
         int track_index,
@@ -958,6 +983,8 @@ TrackingImageAccessor *tracking_image_accessor_new(MovieClip *clips[MAX_ACCESSOR
 		                       accessor_get_mask_for_track_callback,
 		                       accessor_release_mask_callback);
 
+	BLI_spin_init(&accessor->cache_lock);
+
 	return accessor;
 }
 
@@ -965,5 +992,6 @@ void tracking_image_accessor_destroy(TrackingImageAccessor *accessor)
 {
 	IMB_moviecache_free(accessor->cache);
 	libmv_FrameAccessorDestroy(accessor->libmv_accessor);
+	BLI_spin_end(&accessor->cache_lock);
 	MEM_freeN(accessor);
 }
diff --git a/source/blender/blenkernel/intern/unit.c b/source/blender/blenkernel/intern/unit.c
index c0a373395dc..8606da0743b 100644
--- a/source/blender/blenkernel/intern/unit.c
+++ b/source/blender/blenkernel/intern/unit.c
@@ -372,6 +372,12 @@ static size_t unit_as_string(char *str, int len_max, double value, int prec, con
 
 	value_conv = value / unit->scalar;
 
+	/* Adjust precision to expected number of significant digits.
+	 * Note that here, we shall not have to worry about very big/small numbers, units are expected to replace
+	 * 'scientific notation' in those cases. */
+	prec -= integer_digits_d(value_conv);
+	CLAMP(prec, 0, 6);
+
 	/* Convert to a string */
 	len = BLI_snprintf_rlen(str, len_max, "%.*f", prec, value_conv);
 
@@ -442,12 +448,15 @@ size_t bUnit_AsString(char *str, int len_max, double value, int prec, int system
 			size_t i;
 			i = unit_as_string(str, len_max, value_a, prec, usys, unit_a, '\0');
 
+			prec -= integer_digits_d(value_a / unit_b->scalar) - integer_digits_d(value_b / unit_b->scalar);
+			prec = max_ii(prec, 0);
+
 			/* is there enough space for at least 1 char of the next unit? */
 			if (i + 2 < len_max) {
 				str[i++] = ' ';
 
 				/* use low precision since this is a smaller unit */
-				i += unit_as_string(str + i, len_max - i, value_b, prec ? 1 : 0, usys, unit_b, '\0');
+				i += unit_as_string(str + i, len_max - i, value_b, prec, usys, unit_b, '\0');
 			}
 			return i;
 		}
diff --git a/source/blender/blenkernel/intern/world.c b/source/blender/blenkernel/intern/world.c
index 363c36e644d..e79b06a44fe 100644
--- a/source/blender/blenkernel/intern/world.c
+++ b/source/blender/blenkernel/intern/world.c
@@ -112,43 +112,59 @@ World *add_world(Main *bmain, const char *name)
 {
 	World *wrld;
 
-	wrld = BKE_libblock_alloc(bmain, ID_WO, name);
+	wrld = BKE_libblock_alloc(bmain, ID_WO, name, 0);
 
 	BKE_world_init(wrld);
 
 	return wrld;
 }
 
-World *BKE_world_copy(Main *bmain, const World *wrld)
+/**
+ * Only copy internal data of World ID from source to already allocated/initialized destination.
+ * You probably nerver want to use that directly, use id_copy or BKE_id_copy_ex for typical needs.
+ *
+ * WARNING! This function will not handle ID user count!
+ *
+ * \param flag  Copying options (see BKE_library.h's LIB_ID_COPY_... flags for more).
+ */
+void BKE_world_copy_data(Main *bmain, World *wrld_dst, const World *wrld_src, const int flag)
 {
-	World *wrldn;
-	int a;
-	
-	wrldn = BKE_libblock_copy(bmain, &wrld->id);
-	
-	for (a = 0; a < MAX_MTEX; a++) {
-		if (wrld->mtex[a]) {
-			wrldn->mtex[a] = MEM_mallocN(sizeof(MTex), "BKE_world_copy");
-			memcpy(wrldn->mtex[a], wrld->mtex[a], sizeof(MTex));
-			id_us_plus((ID *)wrldn->mtex[a]->tex);
+	for (int a = 0; a < MAX_MTEX; a++) {
+		if (wrld_src->mtex[a]) {
+			wrld_dst->mtex[a] = MEM_dupallocN(wrld_src->mtex[a]);
 		}
 	}
 
-	if (wrld->nodetree) {
-		wrldn->nodetree = ntreeCopyTree(bmain, wrld->nodetree);
+	if (wrld_src->nodetree) {
+		BKE_id_copy_ex(bmain, (ID *)wrld_src->nodetree, (ID **)&wrld_dst->nodetree, flag, false);
 	}
-	
-	BKE_previewimg_id_copy(&wrldn->id, &wrld->id);
 
-	BLI_listbase_clear(&wrldn->gpumaterial);
+	BLI_listbase_clear(&wrld_dst->gpumaterial);
 
-	BKE_id_copy_ensure_local(bmain, &wrld->id, &wrldn->id);
+	if ((flag & LIB_ID_COPY_NO_PREVIEW) == 0) {
+		BKE_previewimg_id_copy(&wrld_dst->id, &wrld_src->id);
+	}
+	else {
+		wrld_dst->preview = NULL;
+	}
+}
 
-	return wrldn;
+World *BKE_world_copy(Main *bmain, const World *wrld)
+{
+	World *wrld_copy;
+	BKE_id_copy_ex(bmain, &wrld->id, (ID **)&wrld_copy, 0, false);
+	return wrld_copy;
 }
 
 World *localize_world(World *wrld)
 {
+	/* TODO replace with something like
+	 * 	World *wrld_copy;
+	 * 	BKE_id_copy_ex(bmain, &wrld->id, (ID **)&wrld_copy, LIB_ID_COPY_NO_MAIN | LIB_ID_COPY_NO_PREVIEW | LIB_ID_COPY_NO_USER_REFCOUNT, false);
+	 * 	return wrld_copy;
+	 *
+	 * ... Once f*** nodes are fully converted to that too :( */
+
 	World *wrldn;
 	int a;
 	
diff --git a/source/blender/blenkernel/intern/writeavi.c b/source/blender/blenkernel/intern/writeavi.c
index 89b2caa5ac7..2fb4ed03603 100644
--- a/source/blender/blenkernel/intern/writeavi.c
+++ b/source/blender/blenkernel/intern/writeavi.c
@@ -80,10 +80,6 @@ static void *context_create_avi(void);
 static void context_free_avi(void *context_v);
 #endif  /* WITH_AVI */
 
-#ifdef WITH_QUICKTIME
-#  include "quicktime_export.h"
-#endif
-
 #ifdef WITH_FFMPEG
 #  include "BKE_writeffmpeg.h"
 #endif
@@ -115,16 +111,6 @@ bMovieHandle *BKE_movie_handle_get(const char imtype)
 #endif
 
 	/* do the platform specific handles */
-#ifdef WITH_QUICKTIME
-	if (imtype == R_IMF_IMTYPE_QUICKTIME) {
-		mh.start_movie = start_qt;
-		mh.append_movie = append_qt;
-		mh.end_movie = end_qt;
-		mh.get_movie_path = filepath_qt;
-		mh.context_create = context_create_qt;
-		mh.context_free = context_free_qt;
-	}
-#endif
 #ifdef WITH_FFMPEG
 	if (ELEM(imtype, R_IMF_IMTYPE_FFMPEG, R_IMF_IMTYPE_H264, R_IMF_IMTYPE_XVID, R_IMF_IMTYPE_THEORA)) {
 		mh.start_movie = BKE_ffmpeg_start;
diff --git a/source/blender/blenkernel/intern/writeffmpeg.c b/source/blender/blenkernel/intern/writeffmpeg.c
index 156b74f5c3d..a19e4142894 100644
--- a/source/blender/blenkernel/intern/writeffmpeg.c
+++ b/source/blender/blenkernel/intern/writeffmpeg.c
@@ -681,6 +681,7 @@ static AVStream *alloc_video_stream(FFMpegContext *context, RenderData *rd, int
 	/* xasp & yasp got float lately... */
 
 	st->sample_aspect_ratio = c->sample_aspect_ratio = av_d2q(((double) rd->xasp / (double) rd->yasp), 255);
+	st->avg_frame_rate = av_inv_q(c->time_base);
 
 	set_ffmpeg_properties(rd, c, "video", &opts);
 
diff --git a/source/blender/blenkernel/tracking_private.h b/source/blender/blenkernel/tracking_private.h
index 1a68a1cac6a..07236fb2096 100644
--- a/source/blender/blenkernel/tracking_private.h
+++ b/source/blender/blenkernel/tracking_private.h
@@ -125,6 +125,7 @@ typedef struct TrackingImageAccessor {
 	int num_tracks;
 	int start_frame;
 	struct libmv_FrameAccessor *libmv_accessor;
+	SpinLock cache_lock;
 } TrackingImageAccessor;
 
 TrackingImageAccessor *tracking_image_accessor_new(MovieClip *clips[MAX_ACCESSOR_CLIP],
diff --git a/source/blender/blenlib/BLI_array.h b/source/blender/blenlib/BLI_array.h
index 74f24c808ff..3ffca818c0d 100644
--- a/source/blender/blenlib/BLI_array.h
+++ b/source/blender/blenlib/BLI_array.h
@@ -135,11 +135,12 @@ void _bli_array_grow_func(void **arr_p, const void *arr_static,
 #define BLI_array_append_ret(arr) \
 	(BLI_array_reserve(arr, 1), &arr[(_##arr##_count++)])
 
-#define BLI_array_free(arr)                                                   \
+#define BLI_array_free(arr) {                                                 \
 	if (arr && (char *)arr != _##arr##_static) {                              \
 		BLI_array_fake_user(arr);                                             \
 		MEM_freeN(arr);                                                       \
-	} (void)0
+	} \
+} ((void)0)
 
 #define BLI_array_pop(arr)  (                                                 \
 	(arr && _##arr##_count) ?                                                 \
diff --git a/source/blender/blenlib/BLI_compiler_compat.h b/source/blender/blenlib/BLI_compiler_compat.h
index 01fc9d70207..0726e3bb343 100644
--- a/source/blender/blenlib/BLI_compiler_compat.h
+++ b/source/blender/blenlib/BLI_compiler_compat.h
@@ -48,12 +48,7 @@ extern "C++" {
 #if defined(_MSC_VER)
 #  define BLI_INLINE static __forceinline
 #else
-#  if (defined(__APPLE__) && defined(__ppc__))
-/* static inline __attribute__ here breaks osx ppc gcc42 build */
-#    define BLI_INLINE static __attribute__((always_inline)) __attribute__((__unused__))
-#  else
-#    define BLI_INLINE static inline __attribute__((always_inline)) __attribute__((__unused__))
-#  endif
+#  define BLI_INLINE static inline __attribute__((always_inline)) __attribute__((__unused__))
 #endif
 
 #endif  /* __BLI_COMPILER_COMPAT_H__ */
diff --git a/source/blender/blenlib/BLI_dial.h b/source/blender/blenlib/BLI_dial.h
index ad7680fe03e..71ab57bb61a 100644
--- a/source/blender/blenlib/BLI_dial.h
+++ b/source/blender/blenlib/BLI_dial.h
@@ -52,8 +52,8 @@
 
 typedef struct Dial Dial;
 
-Dial *BLI_dial_initialize(float start_position[2], float threshold);
+Dial *BLI_dial_initialize(const float start_position[2], float threshold);
 
-float BLI_dial_angle(Dial *dial, float current_position[2]);
+float BLI_dial_angle(Dial *dial, const float current_position[2]);
 
 #endif /* __BLI_DIAL_H__ */
diff --git a/source/blender/blenlib/BLI_fnmatch.h b/source/blender/blenlib/BLI_fnmatch.h
index f69f5b39869..06fa5048622 100644
--- a/source/blender/blenlib/BLI_fnmatch.h
+++ b/source/blender/blenlib/BLI_fnmatch.h
@@ -28,7 +28,7 @@
 extern "C" {
 #endif
 
-#if defined WIN32 && !defined _LIBC  || defined __sun
+#if defined WIN32 && !defined _LIBC
 
 #if defined(__cplusplus) || (defined(__STDC__) && __STDC__)
 #undef  __P
@@ -53,7 +53,7 @@ extern "C" {
 #define FNM_NOESCAPE    (1 << 1) /* Backslashes don't quote special chars.  */
 #define FNM_PERIOD      (1 << 2) /* Leading `.' is matched only explicitly.  */
 
-#if !defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE < 2 || defined(_GNU_SOURCE) || defined(__SUNPRO_C)
+#if !defined(_POSIX_C_SOURCE) || _POSIX_C_SOURCE < 2 || defined(_GNU_SOURCE)
 #define FNM_FILE_NAME   FNM_PATHNAME /* Preferred GNU name.  */
 #define FNM_LEADING_DIR (1 << 3) /* Ignore `/...' after a match.  */
 #define FNM_CASEFOLD    (1 << 4) /* Compare without regard to case.  */
@@ -72,7 +72,7 @@ extern int fnmatch __P((const char *__pattern, const char *__string,
 #    define _GNU_SOURCE
 #  endif
 #  include <fnmatch.h>
-#endif /* defined WIN32 && !defined _LIBC  || defined __sun */
+#endif /* defined WIN32 && !defined _LIBC */
 
 #ifdef  __cplusplus
 }
diff --git a/source/blender/blenlib/BLI_ghash.h b/source/blender/blenlib/BLI_ghash.h
index 7cf3e97bdc9..b42a36a3567 100644
--- a/source/blender/blenlib/BLI_ghash.h
+++ b/source/blender/blenlib/BLI_ghash.h
@@ -43,7 +43,7 @@ extern "C" {
 #ifndef GHASH_INTERNAL_API
 #  ifdef __GNUC__
 #    undef  _GHASH_INTERNAL_ATTR
-#    define _GHASH_INTERNAL_ATTR __attribute__ ((deprecated))
+#    define _GHASH_INTERNAL_ATTR __attribute__ ((deprecated))  /* not deprecated, just private. */
 #  endif
 #endif
 
@@ -90,6 +90,7 @@ void   BLI_ghash_free(GHash *gh, GHashKeyFreeFP keyfreefp, GHashValFreeFP valfre
 void   BLI_ghash_reserve(GHash *gh, const unsigned int nentries_reserve);
 void   BLI_ghash_insert(GHash *gh, void *key, void *val);
 bool   BLI_ghash_reinsert(GHash *gh, void *key, void *val, GHashKeyFreeFP keyfreefp, GHashValFreeFP valfreefp);
+void  *BLI_ghash_replace_key(GHash *gh, void *key);
 void  *BLI_ghash_lookup(GHash *gh, const void *key) ATTR_WARN_UNUSED_RESULT;
 void  *BLI_ghash_lookup_default(GHash *gh, const void *key, void *val_default) ATTR_WARN_UNUSED_RESULT;
 void **BLI_ghash_lookup_p(GHash *gh, const void *key) ATTR_WARN_UNUSED_RESULT;
@@ -248,6 +249,7 @@ void   BLI_gset_insert(GSet *gh, void *key);
 bool   BLI_gset_add(GSet *gs, void *key);
 bool   BLI_gset_ensure_p_ex(GSet *gs, const void *key, void ***r_key);
 bool   BLI_gset_reinsert(GSet *gh, void *key, GSetKeyFreeFP keyfreefp);
+void  *BLI_gset_replace_key(GSet *gs, void *key);
 bool   BLI_gset_haskey(GSet *gs, const void *key) ATTR_WARN_UNUSED_RESULT;
 bool   BLI_gset_pop(GSet *gs, GSetIterState *state, void **r_key) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
 bool   BLI_gset_remove(GSet *gs, const void *key, GSetKeyFreeFP keyfreefp);
diff --git a/source/blender/blenlib/BLI_kdtree.h b/source/blender/blenlib/BLI_kdtree.h
index aa54e1c823c..18908f8c551 100644
--- a/source/blender/blenlib/BLI_kdtree.h
+++ b/source/blender/blenlib/BLI_kdtree.h
@@ -66,6 +66,10 @@ void BLI_kdtree_range_search_cb(
         const KDTree *tree, const float co[3], float range,
         bool (*search_cb)(void *user_data, int index, const float co[3], float dist_sq), void *user_data);
 
+int BLI_kdtree_calc_duplicates_fast(
+        const KDTree *tree, const float range, bool use_index_order,
+        int *doubles);
+
 /* Normal use is deprecated */
 /* remove __normal functions when last users drop */
 int BLI_kdtree_find_nearest_n__normal(
diff --git a/source/blender/blenlib/BLI_math_base.h b/source/blender/blenlib/BLI_math_base.h
index 0126e30d900..e6a72298ae7 100644
--- a/source/blender/blenlib/BLI_math_base.h
+++ b/source/blender/blenlib/BLI_math_base.h
@@ -138,6 +138,9 @@ MINLINE int signum_i(float a);
 
 MINLINE float power_of_2(float f);
 
+MINLINE int integer_digits_f(const float f);
+MINLINE int integer_digits_d(const double d);
+
 /* these don't really fit anywhere but were being copied about a lot */
 MINLINE int is_power_of_2_i(int n);
 MINLINE int power_of_2_max_i(int n);
@@ -146,10 +149,37 @@ MINLINE int power_of_2_min_i(int n);
 MINLINE unsigned int power_of_2_max_u(unsigned int x);
 MINLINE unsigned int power_of_2_min_u(unsigned int x);
 
-MINLINE int iroundf(float a);
 MINLINE int divide_round_i(int a, int b);
 MINLINE int mod_i(int i, int n);
 
+MINLINE signed char    round_fl_to_char(float a);
+MINLINE unsigned char  round_fl_to_uchar(float a);
+MINLINE short          round_fl_to_short(float a);
+MINLINE unsigned short round_fl_to_ushort(float a);
+MINLINE int            round_fl_to_int(float a);
+MINLINE unsigned int   round_fl_to_uint(float a);
+
+MINLINE signed char    round_db_to_char(double a);
+MINLINE unsigned char  round_db_to_uchar(double a);
+MINLINE short          round_db_to_short(double a);
+MINLINE unsigned short round_db_to_ushort(double a);
+MINLINE int            round_db_to_int(double a);
+MINLINE unsigned int   round_db_to_uint(double a);
+
+MINLINE signed char    round_fl_to_char_clamp(float a);
+MINLINE unsigned char  round_fl_to_uchar_clamp(float a);
+MINLINE short          round_fl_to_short_clamp(float a);
+MINLINE unsigned short round_fl_to_ushort_clamp(float a);
+MINLINE int            round_fl_to_int_clamp(float a);
+MINLINE unsigned int   round_fl_to_uint_clamp(float a);
+
+MINLINE signed char    round_db_to_char_clamp(double a);
+MINLINE unsigned char  round_db_to_uchar_clamp(double a);
+MINLINE short          round_db_to_short_clamp(double a);
+MINLINE unsigned short round_db_to_ushort_clamp(double a);
+MINLINE int            round_db_to_int_clamp(double a);
+MINLINE unsigned int   round_db_to_uint_clamp(double a);
+
 int pow_i(int base, int exp);
 double double_round(double x, int ndigits);
 
diff --git a/source/blender/blenlib/BLI_math_geom.h b/source/blender/blenlib/BLI_math_geom.h
index 18bba33cdfa..2893da9bce8 100644
--- a/source/blender/blenlib/BLI_math_geom.h
+++ b/source/blender/blenlib/BLI_math_geom.h
@@ -166,8 +166,14 @@ void limit_dist_v3(float v1[3], float v2[3], const float dist);
 
 int  isect_seg_seg_v2(const float a1[2], const float a2[2], const float b1[2], const float b2[2]);
 int  isect_seg_seg_v2_int(const int a1[2], const int a2[2], const int b1[2], const int b2[2]);
-int  isect_seg_seg_v2_point(const float v0[2], const float v1[2], const float v2[2], const float v3[2], float vi[2]);
-bool isect_seg_seg_v2_simple(const float v1[2], const float v2[2], const float v3[2], const float v4[2]);
+int  isect_seg_seg_v2_point_ex(
+        const float v0[2], const float v1[2], const float v2[2], const float v3[2], const float endpoint_bias,
+        float vi[2]);
+int  isect_seg_seg_v2_point(
+        const float v0[2], const float v1[2], const float v2[2], const float v3[2],
+        float vi[2]);
+bool isect_seg_seg_v2_simple(
+        const float v1[2], const float v2[2], const float v3[2], const float v4[2]);
 
 int isect_line_sphere_v3(const float l1[3], const float l2[3], const float sp[3], const float r, float r_p1[3], float r_p2[3]);
 int isect_line_sphere_v2(const float l1[2], const float l2[2], const float sp[2], const float r, float r_p1[2], float r_p2[2]);
diff --git a/source/blender/blenlib/BLI_math_inline.h b/source/blender/blenlib/BLI_math_inline.h
index 840cf24f8cf..383abda5b2f 100644
--- a/source/blender/blenlib/BLI_math_inline.h
+++ b/source/blender/blenlib/BLI_math_inline.h
@@ -44,12 +44,7 @@ extern "C" {
 #    define MALWAYS_INLINE MINLINE
 #  else
 #    define MINLINE static inline
-#    if (defined(__APPLE__) && defined(__ppc__))
-       /* static inline __attribute__ here breaks osx ppc gcc42 build */
-#      define MALWAYS_INLINE static __attribute__((always_inline)) __attribute__((unused))
-#    else
-#      define MALWAYS_INLINE static inline __attribute__((always_inline)) __attribute__((unused))
-#    endif
+#    define MALWAYS_INLINE static inline __attribute__((always_inline)) __attribute__((unused))
 #  endif
 #else
 #  define MINLINE
diff --git a/source/blender/blenlib/BLI_math_vector.h b/source/blender/blenlib/BLI_math_vector.h
index 43f414f376a..4fdb33926a2 100644
--- a/source/blender/blenlib/BLI_math_vector.h
+++ b/source/blender/blenlib/BLI_math_vector.h
@@ -299,6 +299,8 @@ void angle_poly_v3(float *angles, const float *verts[3], int len);
 
 void project_v2_v2v2(float out[2], const float p[2], const float v_proj[2]);
 void project_v3_v3v3(float out[3], const float p[3], const float v_proj[3]);
+void project_v2_v2v2_normalized(float out[2], const float p[2], const float v_proj[2]);
+void project_v3_v3v3_normalized(float out[3], const float p[3], const float v_proj[3]);
 void project_plane_v3_v3v3(float out[3], const float p[3], const float v_plane[3]);
 void project_plane_v2_v2v2(float out[2], const float p[2], const float v_plane[2]);
 void project_plane_normalized_v3_v3v3(float out[3], const float p[3], const float v_plane[3]);
diff --git a/source/blender/blenlib/BLI_polyfill2d_beautify.h b/source/blender/blenlib/BLI_polyfill2d_beautify.h
index 20e53b080fe..29a900200bb 100644
--- a/source/blender/blenlib/BLI_polyfill2d_beautify.h
+++ b/source/blender/blenlib/BLI_polyfill2d_beautify.h
@@ -33,8 +33,12 @@ void BLI_polyfill_beautify(
         /* structs for reuse */
         struct MemArena *arena, struct Heap *eheap, struct EdgeHash *eh);
 
-float BLI_polyfill_beautify_quad_rotate_calc(
-        const float v1[2], const float v2[2], const float v3[2], const float v4[2]);
+float BLI_polyfill_beautify_quad_rotate_calc_ex(
+        const float v1[2], const float v2[2], const float v3[2], const float v4[2],
+        const bool lock_degenerate);
+#define BLI_polyfill_beautify_quad_rotate_calc(v1, v2, v3, v4) \
+	BLI_polyfill_beautify_quad_rotate_calc_ex(v1, v2, v3, v4, false)
+
 
 /* avoid realloc's when creating new structures for polyfill ngons */
 #define BLI_POLYFILL_ALLOC_NGON_RESERVE 64
diff --git a/source/blender/blenlib/BLI_rect.h b/source/blender/blenlib/BLI_rect.h
index 21b9c75ac35..471d875c9af 100644
--- a/source/blender/blenlib/BLI_rect.h
+++ b/source/blender/blenlib/BLI_rect.h
@@ -55,6 +55,8 @@ void BLI_rcti_do_minmax_v(struct rcti *rect, const int xy[2]);
 void BLI_rctf_do_minmax_v(struct rctf *rect, const float xy[2]);
 
 void BLI_rctf_transform_pt_v(const rctf *dst, const rctf *src, float xy_dst[2], const float xy_src[2]);
+void BLI_rctf_transform_calc_m4_pivot_min_ex(const rctf *dst, const rctf *src, float matrix[4][4], uint x, uint y);
+void BLI_rctf_transform_calc_m4_pivot_min(const rctf *dst, const rctf *src, float matrix[4][4]);
 
 void BLI_rctf_translate(struct rctf *rect, float x, float y);
 void BLI_rcti_translate(struct rcti *rect, int x, int y);
diff --git a/source/blender/blenlib/BLI_string_utils.h b/source/blender/blenlib/BLI_string_utils.h
index bb19ed574bb..5701bce51ea 100644
--- a/source/blender/blenlib/BLI_string_utils.h
+++ b/source/blender/blenlib/BLI_string_utils.h
@@ -39,6 +39,7 @@ extern "C" {
 #endif
 
 #include "BLI_compiler_attrs.h"
+#include "BLI_utildefines_variadic.h"
 
 struct ListBase;
 
@@ -49,6 +50,24 @@ size_t BLI_split_name_num(char *left, int *nr, const char *name, const char deli
 void BLI_string_split_suffix(const char *string, char *r_body, char *r_suf, const size_t str_len);
 void BLI_string_split_prefix(const char *string, char *r_pre, char *r_body, const size_t str_len);
 
+/* Join strings, return newly allocated string. */
+char *BLI_string_join_arrayN(
+        const char *strings[], uint strings_len) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
+char *BLI_string_join_array_by_sep_charN(
+        char sep, const char *strings[], uint strings_len) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
+char *BLI_string_join_array_by_sep_char_with_tableN(
+        char sep, char *table[], const char *strings[], uint strings_len) ATTR_NONNULL();
+/* Take multiple arguments, pass as (array, length). */
+#define BLI_string_joinN(...) \
+	BLI_string_join_arrayN( \
+	((const char *[]){__VA_ARGS__}), VA_NARGS_COUNT(__VA_ARGS__))
+#define BLI_string_join_by_sep_charN(sep, ...) \
+	BLI_string_join_array_by_sep_charN( \
+	sep, ((const char *[]){__VA_ARGS__}), VA_NARGS_COUNT(__VA_ARGS__))
+#define BLI_string_join_by_sep_char_with_tableN(sep, table, ...) \
+	BLI_string_join_array_by_sep_char_with_tableN( \
+	sep, table, ((const char *[]){__VA_ARGS__}), VA_NARGS_COUNT(__VA_ARGS__))
+
 void BLI_string_flip_side_name(char *r_name, const char *from_name, const bool strip_number, const size_t name_len);
 
 bool BLI_uniquename_cb(
diff --git a/source/blender/blenlib/BLI_utildefines.h b/source/blender/blenlib/BLI_utildefines.h
index 746eb922c65..66c7f247f61 100644
--- a/source/blender/blenlib/BLI_utildefines.h
+++ b/source/blender/blenlib/BLI_utildefines.h
@@ -39,35 +39,12 @@ extern "C" {
 /* avoid many includes for now */
 #include "BLI_sys_types.h"
 #include "BLI_compiler_compat.h"
+#include "BLI_utildefines_variadic.h"
 
 #ifndef NDEBUG /* for BLI_assert */
 #include <stdio.h>
 #endif
 
-
-/* varargs macros (keep first so others can use) */
-/* --- internal helpers --- */
-#define _VA_NARGS_GLUE(x, y) x y
-#define _VA_NARGS_RETURN_COUNT(\
-	_1_, _2_, _3_, _4_, _5_, _6_, _7_, _8_, _9_, _10_, _11_, _12_, _13_, _14_, _15_, _16_, \
-	_17_, _18_, _19_, _20_, _21_, _22_, _23_, _24_, _25_, _26_, _27_, _28_, _29_, _30_, _31_, _32_, \
-	_33_, _34_, _35_, _36_, _37_, _38_, _39_, _40_, _41_, _42_, _43_, _44_, _45_, _46_, _47_, _48_, \
-	_49_, _50_, _51_, _52_, _53_, _54_, _55_, _56_, _57_, _58_, _59_, _60_, _61_, _62_, _63_, _64_, \
-	count, ...) count
-#define _VA_NARGS_EXPAND(args) _VA_NARGS_RETURN_COUNT args
-/* 64 args max */
-#define _VA_NARGS_COUNT(...) _VA_NARGS_EXPAND((__VA_ARGS__, \
-	64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, \
-	48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, \
-	32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, \
-	16, 15, 14, 13, 12, 11, 10,  9,  8,  7,  6,  5,  4,  3,  2, 1, 0))
-#define _VA_NARGS_OVERLOAD_MACRO2(name, count) name##count
-#define _VA_NARGS_OVERLOAD_MACRO1(name, count) _VA_NARGS_OVERLOAD_MACRO2(name, count)
-#define _VA_NARGS_OVERLOAD_MACRO(name,  count) _VA_NARGS_OVERLOAD_MACRO1(name, count)
-/* --- expose for re-use --- */
-#define VA_NARGS_CALL_OVERLOAD(name, ...) \
-	_VA_NARGS_GLUE(_VA_NARGS_OVERLOAD_MACRO(name, _VA_NARGS_COUNT(__VA_ARGS__)), (__VA_ARGS__))
-
 /* useful for finding bad use of min/max */
 #if 0
 /* gcc only */
diff --git a/source/blender/blenlib/BLI_utildefines_iter.h b/source/blender/blenlib/BLI_utildefines_iter.h
new file mode 100644
index 00000000000..094c1a4b3dc
--- /dev/null
+++ b/source/blender/blenlib/BLI_utildefines_iter.h
@@ -0,0 +1,52 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef __BLI_UTILDEFINES_ITER_H__
+#define __BLI_UTILDEFINES_ITER_H__
+
+/** \file BLI_utildefines_iter.h
+ *  \ingroup bli
+ *
+ * General looping helpers, use `BLI_FOREACH` prefix.
+ */
+
+/**
+ * Even value distribution.
+ *
+ * \a src must be larger than \a dst,
+ * \a dst defines the number of iterations, their values are evenly spaced.
+ *
+ * The following pairs represent (src, dst) arguments and the values they loop over.
+ * <pre>
+ * (19, 4) ->    [2, 7, 11. 16]
+ * (100, 5) ->   [9, 29, 49, 69, 89]
+ * (100, 3) ->   [16, 49, 83]
+ * (100, 100) -> [0..99]
+ * </pre>
+ * \note this is mainly useful for numbers that might not divide evenly into eachother.
+ */
+#define BLI_FOREACH_SPARSE_RANGE(src, dst, i) \
+for (int _src = (src), _src2 = _src * 2, _dst2 = (dst) * 2, _error = _dst2 - _src, i = 0, _delta; \
+     ((void)(_delta = divide_floor_i(_error, _dst2)), \
+      (void)(i -= _delta), \
+      (i < _src)); \
+     _error -= (_delta * _dst2) + _src2)
+
+#endif  /* __BLI_UTILDEFINES_ITER_H__ */
diff --git a/source/blender/blenlib/BLI_stackdefines.h b/source/blender/blenlib/BLI_utildefines_stack.h
index 42b11eb9a2b..15b0029e727 100644
--- a/source/blender/blenlib/BLI_stackdefines.h
+++ b/source/blender/blenlib/BLI_utildefines_stack.h
@@ -18,10 +18,10 @@
  * ***** END GPL LICENSE BLOCK *****
  */
 
-#ifndef __BLI_STACKDEFINES_H__
-#define __BLI_STACKDEFINES_H__
+#ifndef __BLI_UTILDEFINES_STACK_H__
+#define __BLI_UTILDEFINES_STACK_H__
 
-/** \file BLI_stackdefines.h
+/** \file BLI_utildefines_stack.h
  *  \ingroup bli
  *
  * Macro's for a simple array based stack
@@ -86,4 +86,4 @@
 	} ((void)0)
 #endif
 
-#endif  /* __BLI_STACKDEFINES_H__ */
+#endif  /* __BLI_UTILDEFINES_STACK_H__ */
diff --git a/source/blender/blenlib/BLI_utildefines_variadic.h b/source/blender/blenlib/BLI_utildefines_variadic.h
new file mode 100644
index 00000000000..7c15754fd83
--- /dev/null
+++ b/source/blender/blenlib/BLI_utildefines_variadic.h
@@ -0,0 +1,50 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef __BLI_UTILDEFINES_VARIADIC_H__
+#define __BLI_UTILDEFINES_VARIADIC_H__
+
+/** \file BLI_utildefines_variadic.h
+ *  \ingroup bli
+ */
+
+/* --- internal helpers --- */
+#define _VA_NARGS_GLUE(x, y) x y
+#define _VA_NARGS_RETURN_COUNT(\
+	_1_, _2_, _3_, _4_, _5_, _6_, _7_, _8_, _9_, _10_, _11_, _12_, _13_, _14_, _15_, _16_, \
+	_17_, _18_, _19_, _20_, _21_, _22_, _23_, _24_, _25_, _26_, _27_, _28_, _29_, _30_, _31_, _32_, \
+	_33_, _34_, _35_, _36_, _37_, _38_, _39_, _40_, _41_, _42_, _43_, _44_, _45_, _46_, _47_, _48_, \
+	_49_, _50_, _51_, _52_, _53_, _54_, _55_, _56_, _57_, _58_, _59_, _60_, _61_, _62_, _63_, _64_, \
+	count, ...) count
+#define _VA_NARGS_EXPAND(args) _VA_NARGS_RETURN_COUNT args
+#define _VA_NARGS_OVERLOAD_MACRO2(name, count) name##count
+#define _VA_NARGS_OVERLOAD_MACRO1(name, count) _VA_NARGS_OVERLOAD_MACRO2(name, count)
+#define _VA_NARGS_OVERLOAD_MACRO(name,  count) _VA_NARGS_OVERLOAD_MACRO1(name, count)
+/* --- expose for re-use --- */
+/* 64 args max */
+#define VA_NARGS_COUNT(...) _VA_NARGS_EXPAND((__VA_ARGS__, \
+	64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, \
+	48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, \
+	32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, \
+	16, 15, 14, 13, 12, 11, 10,  9,  8,  7,  6,  5,  4,  3,  2, 1, 0))
+#define VA_NARGS_CALL_OVERLOAD(name, ...) \
+	_VA_NARGS_GLUE(_VA_NARGS_OVERLOAD_MACRO(name, VA_NARGS_COUNT(__VA_ARGS__)), (__VA_ARGS__))
+
+#endif  /* __BLI_UTILDEFINES_VARIADIC_H__ */
diff --git a/source/blender/blenlib/BLI_vfontdata.h b/source/blender/blenlib/BLI_vfontdata.h
index 8a7079b6c5f..0cd50319a33 100644
--- a/source/blender/blenlib/BLI_vfontdata.h
+++ b/source/blender/blenlib/BLI_vfontdata.h
@@ -52,8 +52,10 @@ typedef struct VChar {
 } VChar;
 
 VFontData *BLI_vfontdata_from_freetypefont(struct PackedFile *pf);
+VFontData *BLI_vfontdata_copy(const VFontData *vfont_src, const int flag);
 
 VChar *BLI_vfontchar_from_freetypefont(struct VFont *vfont, unsigned long character);
+VChar *BLI_vfontchar_copy(const VChar *vchar_src, const int flag);
 
 #endif
 
diff --git a/source/blender/blenlib/CMakeLists.txt b/source/blender/blenlib/CMakeLists.txt
index fcb02a86a84..61a1241cd8f 100644
--- a/source/blender/blenlib/CMakeLists.txt
+++ b/source/blender/blenlib/CMakeLists.txt
@@ -192,7 +192,6 @@ set(SRC
 	BLI_sort.h
 	BLI_sort_utils.h
 	BLI_stack.h
-	BLI_stackdefines.h
 	BLI_strict_flags.h
 	BLI_string.h
 	BLI_string_cursor_utf8.h
@@ -204,6 +203,9 @@ set(SRC
 	BLI_threads.h
 	BLI_timecode.h
 	BLI_utildefines.h
+	BLI_utildefines_iter.h
+	BLI_utildefines_stack.h
+	BLI_utildefines_variadic.h
 	BLI_uvproject.h
 	BLI_vfontdata.h
 	BLI_voronoi.h
diff --git a/source/blender/blenlib/intern/BLI_dial.c b/source/blender/blenlib/intern/BLI_dial.c
index cfbb52847fd..89f18fa10b4 100644
--- a/source/blender/blenlib/intern/BLI_dial.c
+++ b/source/blender/blenlib/intern/BLI_dial.c
@@ -46,7 +46,7 @@ struct Dial {
 };
 
 
-Dial *BLI_dial_initialize(float start_position[2], float threshold)
+Dial *BLI_dial_initialize(const float start_position[2], float threshold)
 {
 	Dial *dial = MEM_callocN(sizeof(Dial), "dial");
 	
@@ -56,7 +56,7 @@ Dial *BLI_dial_initialize(float start_position[2], float threshold)
 	return dial;
 }
 
-float BLI_dial_angle(Dial *dial, float current_position[2])
+float BLI_dial_angle(Dial *dial, const float current_position[2])
 {
 	float current_direction[2];
 	
diff --git a/source/blender/blenlib/intern/BLI_ghash.c b/source/blender/blenlib/intern/BLI_ghash.c
index 69dee12c713..1b2a27e33d8 100644
--- a/source/blender/blenlib/intern/BLI_ghash.c
+++ b/source/blender/blenlib/intern/BLI_ghash.c
@@ -763,6 +763,28 @@ bool BLI_ghash_reinsert(GHash *gh, void *key, void *val, GHashKeyFreeFP keyfreef
 }
 
 /**
+ * Replaces the key of an item in the \a gh.
+ *
+ * Use when a key is re-allocated or it's memory location is changed.
+ *
+ * \returns The previous key or NULL if not found, the caller may free if it's needed.
+ */
+void *BLI_ghash_replace_key(GHash *gh, void *key)
+{
+	const unsigned int hash = ghash_keyhash(gh, key);
+	const unsigned int bucket_index = ghash_bucket_index(gh, hash);
+	GHashEntry *e = (GHashEntry *)ghash_lookup_entry_ex(gh, key, bucket_index);
+	if (e != NULL) {
+		void *key_prev = e->e.key;
+		e->e.key = key;
+		return key_prev;
+	}
+	else {
+		return NULL;
+	}
+}
+
+/**
  * Lookup the value of \a key in \a gh.
  *
  * \param key  The key to lookup.
@@ -1434,6 +1456,18 @@ bool BLI_gset_reinsert(GSet *gs, void *key, GSetKeyFreeFP keyfreefp)
 	return ghash_insert_safe_keyonly((GHash *)gs, key, true, keyfreefp);
 }
 
+/**
+ * Replaces the key to the set if it's found.
+ * Matching #BLI_ghash_replace_key
+ *
+ * \returns The old key or NULL if not found.
+ */
+void *BLI_gset_replace_key(GSet *gs, void *key)
+{
+	return BLI_ghash_replace_key((GHash *)gs, key);
+}
+
+
 bool BLI_gset_remove(GSet *gs, const void *key, GSetKeyFreeFP keyfreefp)
 {
 	return BLI_ghash_remove((GHash *)gs, key, keyfreefp, NULL);
diff --git a/source/blender/blenlib/intern/BLI_kdtree.c b/source/blender/blenlib/intern/BLI_kdtree.c
index a81f9b28b83..84ac339cc4d 100644
--- a/source/blender/blenlib/intern/BLI_kdtree.c
+++ b/source/blender/blenlib/intern/BLI_kdtree.c
@@ -674,3 +674,123 @@ finally:
 	if (stack != defaultstack)
 		MEM_freeN(stack);
 }
+
+/**
+ * Use when we want to loop over nodes ordered by index.
+ * Requires indices to be aligned with nodes.
+ */
+static uint *kdtree_order(const KDTree *tree)
+{
+	const KDTreeNode *nodes = tree->nodes;
+	uint *order = MEM_mallocN(sizeof(uint) * tree->totnode, __func__);
+	for (uint i = 0; i < tree->totnode; i++) {
+		order[nodes[i].index] = i;
+	}
+	return order;
+}
+
+/* -------------------------------------------------------------------- */
+/** \name BLI_kdtree_calc_duplicates_fast
+ * \{ */
+
+struct DeDuplicateParams {
+	/* Static */
+	const KDTreeNode *nodes;
+	float range;
+	float range_sq;
+	int *duplicates;
+	int *duplicates_found;
+
+	/* Per Search */
+	float search_co[3];
+	int search;
+};
+
+static void deduplicate_recursive(const struct DeDuplicateParams *p, uint i)
+{
+	const KDTreeNode *node = &p->nodes[i];
+	if (p->search_co[node->d] + p->range <= node->co[node->d]) {
+		if (node->left != KD_NODE_UNSET) {
+			deduplicate_recursive(p, node->left);
+		}
+	}
+	else if (p->search_co[node->d] - p->range >= node->co[node->d]) {
+		if (node->right != KD_NODE_UNSET) {
+			deduplicate_recursive(p, node->right);
+		}
+	}
+	else {
+		if ((p->search != node->index) && (p->duplicates[node->index] == -1)) {
+			if (compare_len_squared_v3v3(node->co, p->search_co, p->range_sq)) {
+				p->duplicates[node->index] = (int)p->search;
+				*p->duplicates_found += 1;
+			}
+		}
+		if (node->left != KD_NODE_UNSET) {
+			deduplicate_recursive(p, node->left);
+		}
+		if (node->right != KD_NODE_UNSET) {
+			deduplicate_recursive(p, node->right);
+		}
+	}
+}
+
+/**
+ * Find duplicate points in \a range.
+ * Favors speed over quality since it doesn't find the best target vertex for merging.
+ * Nodes are looped over, duplicates are added when found.
+ * Nevertheless results are predictable.
+ *
+ * \param range: Coordinates in this range are candidates to be merged.
+ * \param use_index_order: Loop over the coordinates ordered by #KDTreeNode.index
+ * At the expense of some performance, this ensures the layout of the tree doesn't influence
+ * the iteration order.
+ * \param duplicates: An array of int's the length of #KDTree.totnode
+ * Values initialized to -1 are candidates to me merged.
+ * Setting the index to it's own position in the array prevents it from being touched,
+ * although it can still be used as a target.
+ * \returns The numebr of merges found (includes any merges already in the \a duplicates array).
+ *
+ * \note Merging is always a single step (target indices wont be marked for merging). 
+ */
+int BLI_kdtree_calc_duplicates_fast(
+        const KDTree *tree, const float range, bool use_index_order,
+        int *duplicates)
+{
+	int found = 0;
+	struct DeDuplicateParams p = {
+		.nodes = tree->nodes,
+		.range = range,
+		.range_sq = range * range,
+		.duplicates = duplicates,
+		.duplicates_found = &found,
+	};
+
+	if (use_index_order) {
+		uint *order = kdtree_order(tree);
+		for (uint i = 0; i < tree->totnode; i++) {
+			const uint node_index = order[i];
+			const int index = (int)i;
+			if (ELEM(duplicates[index], -1, index)) {
+				p.search = index;
+				copy_v3_v3(p.search_co, tree->nodes[node_index].co);
+				deduplicate_recursive(&p, tree->root);
+			}
+		}
+		MEM_freeN(order);
+	}
+	else {
+		for (uint i = 0; i < tree->totnode; i++) {
+			const uint node_index = i;
+			const int index = p.nodes[node_index].index;
+			if (ELEM(duplicates[index], -1, index)) {
+				p.search = index;
+				copy_v3_v3(p.search_co, tree->nodes[node_index].co);
+				deduplicate_recursive(&p, tree->root);
+			}
+		}
+	}
+	return found;
+}
+
+/** \} */
diff --git a/source/blender/blenlib/intern/freetypefont.c b/source/blender/blenlib/intern/freetypefont.c
index 8719c92a2a6..e990f0b663c 100644
--- a/source/blender/blenlib/intern/freetypefont.c
+++ b/source/blender/blenlib/intern/freetypefont.c
@@ -481,6 +481,22 @@ VFontData *BLI_vfontdata_from_freetypefont(PackedFile *pf)
 	return vfd;
 }
 
+static void *vfontdata_copy_characters_value_cb(const void *src)
+{
+	return BLI_vfontchar_copy(src, 0);
+}
+
+VFontData *BLI_vfontdata_copy(const VFontData *vfont_src, const int UNUSED(flag))
+{
+	VFontData *vfont_dst = MEM_dupallocN(vfont_src);
+
+	if (vfont_src->characters != NULL) {
+		vfont_dst->characters = BLI_ghash_copy(vfont_src->characters, NULL, vfontdata_copy_characters_value_cb);
+	}
+
+	return vfont_dst;
+}
+
 VChar *BLI_vfontchar_from_freetypefont(VFont *vfont, unsigned long character)
 {
 	VChar *che = NULL;
@@ -503,6 +519,20 @@ VChar *BLI_vfontchar_from_freetypefont(VFont *vfont, unsigned long character)
 	return che;
 }
 
+/* Yeah, this is very bad... But why is this in BLI in the first place, since it uses Nurb data?
+ * Anyway, do not feel like duplicating whole Nurb copy code here, so unless someone has a better idea... */
+#include "../../blenkernel/BKE_curve.h"
+
+VChar *BLI_vfontchar_copy(const VChar *vchar_src, const int UNUSED(flag))
+{
+	VChar *vchar_dst = MEM_dupallocN(vchar_src);
+
+	BLI_listbase_clear(&vchar_dst->nurbsbase);
+	BKE_nurbList_duplicate(&vchar_dst->nurbsbase, &vchar_src->nurbsbase);
+
+	return vchar_dst;
+}
+
 #if 0
 
 /* Freetype2 Outline struct */
diff --git a/source/blender/blenlib/intern/math_base_inline.c b/source/blender/blenlib/intern/math_base_inline.c
index 8d2d80c2a35..749c18fc0ce 100644
--- a/source/blender/blenlib/intern/math_base_inline.c
+++ b/source/blender/blenlib/intern/math_base_inline.c
@@ -33,6 +33,7 @@
 #include <float.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <limits.h>
 
 #ifdef __SSE2__
 #  include <emmintrin.h>
@@ -181,11 +182,59 @@ MINLINE unsigned power_of_2_min_u(unsigned x)
 	return x - (x >> 1);
 }
 
-MINLINE int iroundf(float a)
-{
-	return (int)floorf(a + 0.5f);
+/* rounding and clamping */
+
+#define _round_clamp_fl_impl(arg, ty, min, max) { \
+	float r = floorf(arg + 0.5f); \
+	if      (UNLIKELY(r <= (float)min)) return (ty)min; \
+	else if (UNLIKELY(r >= (float)max)) return (ty)max; \
+	else return (ty)r; \
+}
+
+#define _round_clamp_db_impl(arg, ty, min, max) { \
+	double r = floor(arg + 0.5); \
+	if      (UNLIKELY(r <= (double)min)) return (ty)min; \
+	else if (UNLIKELY(r >= (double)max)) return (ty)max; \
+	else return (ty)r; \
 }
 
+#define _round_fl_impl(arg, ty) { return (ty)floorf(arg + 0.5f); }
+#define _round_db_impl(arg, ty) { return (ty)floor(arg + 0.5); }
+
+MINLINE signed char    round_fl_to_char(float a) { _round_fl_impl(a, signed char) }
+MINLINE unsigned char  round_fl_to_uchar(float a) { _round_fl_impl(a, unsigned char) }
+MINLINE short          round_fl_to_short(float a) { _round_fl_impl(a, short) }
+MINLINE unsigned short round_fl_to_ushort(float a) { _round_fl_impl(a, unsigned short) }
+MINLINE int            round_fl_to_int(float a) { _round_fl_impl(a, int) }
+MINLINE unsigned int   round_fl_to_uint(float a) { _round_fl_impl(a, unsigned int) }
+
+MINLINE signed char    round_db_to_char(double a) { _round_db_impl(a, signed char) }
+MINLINE unsigned char  round_db_to_uchar(double a) { _round_db_impl(a, unsigned char) }
+MINLINE short          round_db_to_short(double a) { _round_db_impl(a, short) }
+MINLINE unsigned short round_db_to_ushort(double a) { _round_db_impl(a, unsigned short) }
+MINLINE int            round_db_to_int(double a) { _round_db_impl(a, int) }
+MINLINE unsigned int   round_db_to_uint(double a) { _round_db_impl(a, unsigned int) }
+
+#undef _round_fl_impl
+#undef _round_db_impl
+
+MINLINE signed char    round_fl_to_char_clamp(float a) { _round_clamp_fl_impl(a, signed char, SCHAR_MIN, SCHAR_MAX) }
+MINLINE unsigned char  round_fl_to_uchar_clamp(float a) { _round_clamp_fl_impl(a, unsigned char, 0, UCHAR_MAX) }
+MINLINE short          round_fl_to_short_clamp(float a) { _round_clamp_fl_impl(a, short, SHRT_MIN, SHRT_MAX) }
+MINLINE unsigned short round_fl_to_ushort_clamp(float a) { _round_clamp_fl_impl(a, unsigned short, 0, USHRT_MAX) }
+MINLINE int            round_fl_to_int_clamp(float a) { _round_clamp_fl_impl(a, int, INT_MIN, INT_MAX) }
+MINLINE unsigned int   round_fl_to_uint_clamp(float a) { _round_clamp_fl_impl(a, unsigned int, 0, UINT_MAX) }
+
+MINLINE signed char    round_db_to_char_clamp(double a) { _round_clamp_db_impl(a, signed char, SCHAR_MIN, SCHAR_MAX) }
+MINLINE unsigned char  round_db_to_uchar_clamp(double a) { _round_clamp_db_impl(a, unsigned char, 0, UCHAR_MAX) }
+MINLINE short          round_db_to_short_clamp(double a) { _round_clamp_db_impl(a, short, SHRT_MIN, SHRT_MAX) }
+MINLINE unsigned short round_db_to_ushort_clamp(double a) { _round_clamp_db_impl(a, unsigned short, 0, USHRT_MAX) }
+MINLINE int            round_db_to_int_clamp(double a) { _round_clamp_db_impl(a, int, INT_MIN, INT_MAX) }
+MINLINE unsigned int   round_db_to_uint_clamp(double a) { _round_clamp_db_impl(a, unsigned int, 0, UINT_MAX) }
+
+#undef _round_clamp_fl_impl
+#undef _round_clamp_db_impl
+
 /* integer division that rounds 0.5 up, particularly useful for color blending
  * with integers, to avoid gradual darkening when rounding down */
 MINLINE int divide_round_i(int a, int b)
@@ -194,6 +243,17 @@ MINLINE int divide_round_i(int a, int b)
 }
 
 /**
+ * Integer division that floors negative result.
+ * \note This works like Python's int division.
+ */
+MINLINE int divide_floor_i(int a, int b)
+{
+	int d = a / b;
+	int r = a % b;  /* Optimizes into a single division. */
+	return r ? d - ((a < 0) ^ (b < 0)) : d;
+}
+
+/**
  * modulo that handles negative numbers, works the same as Python's.
  */
 MINLINE int mod_i(int i, int n)
@@ -314,6 +374,21 @@ MINLINE int signum_i(float a)
 	else          return  0;
 }
 
+/** Returns number of (base ten) *significant* digits of integer part of given float
+ * (negative in case of decimal-only floats, 0.01 returns -1 e.g.). */
+MINLINE int integer_digits_f(const float f)
+{
+	return (f == 0.0f) ? 0 : (int)floor(log10(fabs(f))) + 1;
+}
+
+/** Returns number of (base ten) *significant* digits of integer part of given double
+ * (negative in case of decimal-only floats, 0.01 returns -1 e.g.). */
+MINLINE int integer_digits_d(const double d)
+{
+	return (d == 0.0) ? 0 : (int)floor(log10(fabs(d))) + 1;
+}
+
+
 /* Internal helpers for SSE2 implementation.
  *
  * NOTE: Are to be called ONLY from inside `#ifdef __SSE2__` !!!
diff --git a/source/blender/blenlib/intern/math_geom.c b/source/blender/blenlib/intern/math_geom.c
index 630eaed05db..30164ff9f6a 100644
--- a/source/blender/blenlib/intern/math_geom.c
+++ b/source/blender/blenlib/intern/math_geom.c
@@ -765,18 +765,29 @@ int isect_seg_seg_v2(const float v1[2], const float v2[2], const float v3[2], co
 	return ISECT_LINE_LINE_NONE;
 }
 
-/* get intersection point of two 2D segments and return intersection type:
- *  -1: collinear
- *   1: intersection
+/**
+ * Get intersection point of two 2D segments.
+ *
+ * \param endpoint_bias: Bias to use when testing for end-point overlap.
+ * A positive value considers intersections that extend past the endpoints,
+ * negative values contract the endpoints.
+ * Note the bias is applied to a 0-1 factor, not scaled to the length of segments.
+ *
+ * \returns intersection type:
+ * - -1: collinear.
+ * -  1: intersection.
+ * -  0: no intersection.
  */
-int isect_seg_seg_v2_point(
+int isect_seg_seg_v2_point_ex(
         const float v0[2], const float v1[2],
         const float v2[2], const float v3[2],
+        const float endpoint_bias,
         float r_vi[2])
 {
 	float s10[2], s32[2], s30[2], d;
 	const float eps = 1e-6f;
-	const float eps_sq = eps * eps;
+	const float endpoint_min = -endpoint_bias;
+	const float endpoint_max =  endpoint_bias + 1.0f;
 
 	sub_v2_v2v2(s10, v1, v0);
 	sub_v2_v2v2(s32, v3, v2);
@@ -790,8 +801,8 @@ int isect_seg_seg_v2_point(
 		u = cross_v2v2(s30, s32) / d;
 		v = cross_v2v2(s10, s30) / d;
 
-		if ((u >= -eps && u <= 1.0f + eps) &&
-		    (v >= -eps && v <= 1.0f + eps))
+		if ((u >= endpoint_min && u <= endpoint_max) &&
+		    (v >= endpoint_min && v <= endpoint_max))
 		{
 			/* intersection */
 			float vi_test[2];
@@ -810,7 +821,7 @@ int isect_seg_seg_v2_point(
 			sub_v2_v2v2(s_vi_v2, vi_test, v2);
 			v = (dot_v2v2(s32, s_vi_v2) / dot_v2v2(s32, s32));
 #endif
-			if (v >= -eps && v <= 1.0f + eps) {
+			if (v >= endpoint_min && v <= endpoint_max) {
 				copy_v2_v2(r_vi, vi_test);
 				return 1;
 			}
@@ -828,7 +839,7 @@ int isect_seg_seg_v2_point(
 			float u_a, u_b;
 
 			if (equals_v2v2(v0, v1)) {
-				if (len_squared_v2v2(v2, v3) > eps_sq) {
+				if (len_squared_v2v2(v2, v3) > SQUARE(eps)) {
 					/* use non-point segment as basis */
 					SWAP(const float *, v0, v2);
 					SWAP(const float *, v1, v3);
@@ -855,7 +866,7 @@ int isect_seg_seg_v2_point(
 			if (u_a > u_b)
 				SWAP(float, u_a, u_b);
 
-			if (u_a > 1.0f + eps || u_b < -eps) {
+			if (u_a > endpoint_max || u_b < endpoint_min) {
 				/* non-overlapping segments */
 				return -1;
 			}
@@ -871,6 +882,15 @@ int isect_seg_seg_v2_point(
 	}
 }
 
+int isect_seg_seg_v2_point(
+        const float v0[2], const float v1[2],
+        const float v2[2], const float v3[2],
+        float r_vi[2])
+{
+	const float endpoint_bias = 1e-6f;
+	return isect_seg_seg_v2_point_ex(v0, v1, v2, v3, endpoint_bias, r_vi);
+}
+
 bool isect_seg_seg_v2_simple(const float v1[2], const float v2[2], const float v3[2], const float v4[2])
 {
 #define CCW(A, B, C) \
diff --git a/source/blender/blenlib/intern/math_matrix.c b/source/blender/blenlib/intern/math_matrix.c
index f47f9ad76e6..d1a219c196a 100644
--- a/source/blender/blenlib/intern/math_matrix.c
+++ b/source/blender/blenlib/intern/math_matrix.c
@@ -1663,6 +1663,9 @@ void rotate_m4(float mat[4][4], const char axis, const float angle)
 				mat[0][col] =  temp;
 			}
 			break;
+		default:
+			BLI_assert(0);
+			break;
 	}
 }
 
diff --git a/source/blender/blenlib/intern/math_vector.c b/source/blender/blenlib/intern/math_vector.c
index c6e9b8229ba..5f44c93e169 100644
--- a/source/blender/blenlib/intern/math_vector.c
+++ b/source/blender/blenlib/intern/math_vector.c
@@ -652,6 +652,31 @@ void project_v3_v3v3(float out[3], const float p[3], const float v_proj[3])
 }
 
 /**
+ * Project \a p onto a unit length \a v_proj
+ */
+void project_v2_v2v2_normalized(float out[2], const float p[2], const float v_proj[2])
+{
+	BLI_ASSERT_UNIT_V2(v_proj);
+	const float mul = dot_v2v2(p, v_proj);
+
+	out[0] = mul * v_proj[0];
+	out[1] = mul * v_proj[1];
+}
+
+/**
+ * Project \a p onto a unit length \a v_proj
+ */
+void project_v3_v3v3_normalized(float out[3], const float p[3], const float v_proj[3])
+{
+	BLI_ASSERT_UNIT_V3(v_proj);
+	const float mul = dot_v3v3(p, v_proj);
+
+	out[0] = mul * v_proj[0];
+	out[1] = mul * v_proj[1];
+	out[2] = mul * v_proj[2];
+}
+
+/**
  * In this case plane is a 3D vector only (no 4th component).
  *
  * Projecting will make \a c a copy of \a v orthogonal to \a v_plane.
diff --git a/source/blender/blenlib/intern/noise.c b/source/blender/blenlib/intern/noise.c
index 347640aae0d..86c24307ae2 100644
--- a/source/blender/blenlib/intern/noise.c
+++ b/source/blender/blenlib/intern/noise.c
@@ -1395,9 +1395,9 @@ static float voronoi_CrS(float x, float y, float z)
 static float cellNoiseU(float x, float y, float z)
 {
 	/* avoid precision issues on unit coordinates */
-	x = (x + 0.000001f)*0.999999f;
-	y = (y + 0.000001f)*0.999999f;
-	z = (z + 0.000001f)*0.999999f;
+	x = (x + 0.000001f)*1.00001f;
+	y = (y + 0.000001f)*1.00001f;
+	z = (z + 0.000001f)*1.00001f;
 
 	int xi = (int)(floor(x));
 	int yi = (int)(floor(y));
@@ -1417,9 +1417,9 @@ float cellNoise(float x, float y, float z)
 void cellNoiseV(float x, float y, float z, float ca[3])
 {
 	/* avoid precision issues on unit coordinates */
-	x = (x + 0.000001f)*0.999999f;
-	y = (y + 0.000001f)*0.999999f;
-	z = (z + 0.000001f)*0.999999f;
+	x = (x + 0.000001f)*1.00001f;
+	y = (y + 0.000001f)*1.00001f;
+	z = (z + 0.000001f)*1.00001f;
 
 	int xi = (int)(floor(x));
 	int yi = (int)(floor(y));
diff --git a/source/blender/blenlib/intern/polyfill2d.c b/source/blender/blenlib/intern/polyfill2d.c
index 5f9b92198a5..018e2f9be5a 100644
--- a/source/blender/blenlib/intern/polyfill2d.c
+++ b/source/blender/blenlib/intern/polyfill2d.c
@@ -411,11 +411,11 @@ static bool kdtree2d_isect_tri_recursive(
 	}
 
 #define KDTREE2D_ISECT_TRI_RECURSE_NEG \
-	(((node->neg != KDNODE_UNSET) && (co[node->axis] > bounds[node->axis].min)) &&   \
+	(((node->neg != KDNODE_UNSET) && (co[node->axis] >= bounds[node->axis].min)) &&  \
 	  (kdtree2d_isect_tri_recursive(tree, tri_index, tri_coords, tri_center, bounds, \
 	                                &tree->nodes[node->neg])))
 #define KDTREE2D_ISECT_TRI_RECURSE_POS \
-	(((node->pos != KDNODE_UNSET) && (co[node->axis] < bounds[node->axis].max)) &&   \
+	(((node->pos != KDNODE_UNSET) && (co[node->axis] <= bounds[node->axis].max)) &&  \
 	  (kdtree2d_isect_tri_recursive(tree, tri_index, tri_coords, tri_center, bounds, \
 	                                &tree->nodes[node->pos])))
 
@@ -698,12 +698,12 @@ static bool pf_ear_tip_check(PolyFill *pf, PolyIndex *pi_ear_tip)
 	/* check if counting is wrong */
 	{
 		uint coords_tot_concave_test = 0;
-		uint i = pf->coords_tot;
-		while (i--) {
-			if (coords_sign[indices[i]] != CONVEX) {
+		PolyIndex *pi_iter = pi_ear_tip;
+		do {
+			if (pi_iter->sign != CONVEX) {
 				coords_tot_concave_test += 1;
 			}
-		}
+		} while ((pi_iter = pi_iter->next) != pi_ear_tip);
 		BLI_assert(coords_tot_concave_test == pf->coords_tot_concave);
 	}
 #endif
diff --git a/source/blender/blenlib/intern/polyfill2d_beautify.c b/source/blender/blenlib/intern/polyfill2d_beautify.c
index 896177f436c..5f6fb8e6cd4 100644
--- a/source/blender/blenlib/intern/polyfill2d_beautify.c
+++ b/source/blender/blenlib/intern/polyfill2d_beautify.c
@@ -121,45 +121,53 @@ BLI_INLINE bool is_boundary_edge(unsigned int i_a, unsigned int i_b, const unsig
  * Assuming we have 2 triangles sharing an edge (2 - 4),
  * check if the edge running from (1 - 3) gives better results.
  *
+ * \param lock_degenerate: Use to avoid rotating out of a degenerate state.
+ * - When true, an existing zero area face on either side of the (2 - 4) split will return a positive value.
+ * - When false, the check must be non-biased towards either split direction.
+ *
  * \return (negative number means the edge can be rotated, lager == better).
  */
-float BLI_polyfill_beautify_quad_rotate_calc(
-        const float v1[2], const float v2[2], const float v3[2], const float v4[2])
+float BLI_polyfill_beautify_quad_rotate_calc_ex(
+        const float v1[2], const float v2[2], const float v3[2], const float v4[2],
+        const bool lock_degenerate)
 {
 	/* not a loop (only to be able to break out) */
 	do {
-		bool is_zero_a, is_zero_b;
-
+		/* Allow very small faces to be considered non-zero. */
+		const float eps_zero_area = 1e-12f;
 		const float area_2x_234 = cross_tri_v2(v2, v3, v4);
 		const float area_2x_241 = cross_tri_v2(v2, v4, v1);
 
 		const float area_2x_123 = cross_tri_v2(v1, v2, v3);
 		const float area_2x_134 = cross_tri_v2(v1, v3, v4);
 
-		{
-			BLI_assert((ELEM(v1, v2, v3, v4) == false) &&
-			           (ELEM(v2, v1, v3, v4) == false) &&
-			           (ELEM(v3, v1, v2, v4) == false) &&
-			           (ELEM(v4, v1, v2, v3) == false));
-
-			is_zero_a = (fabsf(area_2x_234) <= FLT_EPSILON);
-			is_zero_b = (fabsf(area_2x_241) <= FLT_EPSILON);
-
-			if (is_zero_a && is_zero_b) {
-				break;
-			}
+		BLI_assert((ELEM(v1, v2, v3, v4) == false) &&
+		           (ELEM(v2, v1, v3, v4) == false) &&
+		           (ELEM(v3, v1, v2, v4) == false) &&
+		           (ELEM(v4, v1, v2, v3) == false));
+		/*
+		 * Test for unusable (1-3) state.
+		 * - Area sign flipping to check faces aren't going to point in opposite directions.
+		 * - Area epsilon check that the one of the faces won't be zero area.
+		 */
+		if ((area_2x_123 >= 0.0f) != (area_2x_134 >= 0.0f)) {
+			break;
 		}
-
-		/* one of the tri's was degenerate, check we're not rotating
-		 * into a different degenerate shape or flipping the face */
-		if ((fabsf(area_2x_123) <= FLT_EPSILON) || (fabsf(area_2x_134) <= FLT_EPSILON)) {
-			/* one of the new rotations is degenerate */
+		else if ((fabsf(area_2x_123) <= eps_zero_area) || (fabsf(area_2x_134) <= eps_zero_area)) {
 			break;
 		}
 
-		if ((area_2x_123 >= 0.0f) != (area_2x_134 >= 0.0f)) {
-			/* rotation would cause flipping */
-			break;
+		/* Test for unusable (2-4) state (same as above). */
+		if ((area_2x_234 >= 0.0f) != (area_2x_241 >= 0.0f)) {
+			if (lock_degenerate) {
+				break;
+			}
+			else {
+				return -FLT_MAX;  /* always rotate */
+			}
+		}
+		else if ((fabsf(area_2x_234) <= eps_zero_area) || (fabsf(area_2x_241) <= eps_zero_area)) {
+			return -FLT_MAX;  /* always rotate */
 		}
 
 		{
diff --git a/source/blender/blenlib/intern/rct.c b/source/blender/blenlib/intern/rct.c
index e0c4cbe9990..3adc6b30f6e 100644
--- a/source/blender/blenlib/intern/rct.c
+++ b/source/blender/blenlib/intern/rct.c
@@ -32,6 +32,7 @@
  * A minimalist lib for functions doing stuff with rectangle structs.
  */
 
+#include <stdlib.h>
 #include <stdio.h>
 #include <math.h>
 
@@ -41,6 +42,9 @@
 #include "DNA_vec_types.h"
 #include "BLI_rect.h"
 
+/* avoid including BLI_math */
+static void unit_m4(float m[4][4]);
+
 /**
  * Determine if a rect is empty. An empty
  * rect is one with a zero (or negative)
@@ -405,6 +409,31 @@ void BLI_rctf_transform_pt_v(const rctf *dst, const rctf *src, float xy_dst[2],
 	xy_dst[1] =               dst->ymin + ((dst->ymax - dst->ymin) * xy_dst[1]);
 }
 
+/**
+ * Calculate a 4x4 matrix representing the transformation between two rectangles.
+ *
+ * \note Multiplying a vector by this matrix does *not* give the same value as #BLI_rctf_transform_pt_v.
+ */
+void BLI_rctf_transform_calc_m4_pivot_min_ex(
+        const rctf *dst, const rctf *src, float matrix[4][4],
+        uint x, uint y)
+{
+	BLI_assert(x < 3 && y < 3);
+
+	unit_m4(matrix);
+
+	matrix[x][x] = BLI_rctf_size_x(src) / BLI_rctf_size_x(dst);
+	matrix[y][y] = BLI_rctf_size_y(src) / BLI_rctf_size_y(dst);
+	matrix[3][x] = (src->xmin - dst->xmin) * matrix[x][x];
+	matrix[3][y] = (src->ymin - dst->ymin) * matrix[y][y];
+}
+
+void BLI_rctf_transform_calc_m4_pivot_min(
+        const rctf *dst, const rctf *src, float matrix[4][4])
+{
+	BLI_rctf_transform_calc_m4_pivot_min_ex(dst, src, matrix, 0, 1);
+}
+
 void BLI_rcti_translate(rcti *rect, int x, int y)
 {
 	rect->xmin += x;
@@ -763,3 +792,12 @@ void BLI_rctf_rotate_expand(rctf *dst, const rctf *src, const float angle)
 #undef ROTATE_SINCOS
 
 /** \} */
+
+static void unit_m4(float m[4][4])
+{
+	m[0][0] = m[1][1] = m[2][2] = m[3][3] = 1.0f;
+	m[0][1] = m[0][2] = m[0][3] = 0.0f;
+	m[1][0] = m[1][2] = m[1][3] = 0.0f;
+	m[2][0] = m[2][1] = m[2][3] = 0.0f;
+	m[3][0] = m[3][1] = m[3][2] = 0.0f;
+}
diff --git a/source/blender/blenlib/intern/storage.c b/source/blender/blenlib/intern/storage.c
index b819c513fbd..a48c8b074dd 100644
--- a/source/blender/blenlib/intern/storage.c
+++ b/source/blender/blenlib/intern/storage.c
@@ -37,14 +37,10 @@
 
 #include <sys/stat.h>
 
-#if defined(__NetBSD__) || defined(__DragonFly__) || defined(__sun__) || defined(__sun)
+#if defined(__NetBSD__) || defined(__DragonFly__)
    /* Other modern unix os's should probably use this also */
 #  include <sys/statvfs.h>
 #  define USE_STATFS_STATVFS
-#elif (defined(__sparc) || defined(__sparc__)) && !defined(__FreeBSD__) && !defined(__linux__)
-#  include <sys/statfs.h>
-   /* 4 argument version (not common) */
-#  define USE_STATFS_4ARGS
 #endif
 
 #if defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__)
diff --git a/source/blender/blenlib/intern/string_utils.c b/source/blender/blenlib/intern/string_utils.c
index 8d91a55a5ad..a693463a302 100644
--- a/source/blender/blenlib/intern/string_utils.c
+++ b/source/blender/blenlib/intern/string_utils.c
@@ -383,3 +383,91 @@ bool BLI_uniquename(ListBase *list, void *vlink, const char *defname, char delim
 
 	return BLI_uniquename_cb(uniquename_unique_check, &data, defname, delim, GIVE_STRADDR(vlink, name_offs), name_len);
 }
+
+/* ------------------------------------------------------------------------- */
+/** \name Join Strings
+ *
+ * For non array versions of these functions, use the macros:
+ * - #BLI_string_joinN
+ * - #BLI_string_join_by_sep_charN
+ * - #BLI_string_join_by_sep_char_with_tableN
+ *
+ * \{ */
+
+/**
+ * Join an array of strings into a newly allocated, null terminated string.
+ */
+char *BLI_string_join_arrayN(
+        const char *strings[], uint strings_len)
+{
+	uint total_len = 1;
+	for (uint i = 0; i < strings_len; i++) {
+		total_len += strlen(strings[i]);
+	}
+	char *result = MEM_mallocN(sizeof(char) * total_len, __func__); 
+	char *c = result;
+	for (uint i = 0; i < strings_len; i++) {
+		c += BLI_strcpy_rlen(c, strings[i]);
+	}
+	return result;
+}
+
+/**
+ * A version of #BLI_string_joinN that takes a separator which can be any character including '\0'.
+ */
+char *BLI_string_join_array_by_sep_charN(
+        char sep, const char *strings[], uint strings_len)
+{
+	uint total_len = 0;
+	for (uint i = 0; i < strings_len; i++) {
+		total_len += strlen(strings[i]) + 1;
+	}
+	if (total_len == 0) {
+		total_len = 1;
+	}
+
+	char *result = MEM_mallocN(sizeof(char) * total_len, __func__); 
+	char *c = result;
+	if (strings_len != 0) {
+		for (uint i = 0; i < strings_len; i++) {
+			c += BLI_strcpy_rlen(c, strings[i]);
+			*c = sep;
+			c++;
+		}
+		c--;
+	}
+	*c = '\0';
+	return result;
+}
+
+/**
+ * A version of #BLI_string_join_array_by_sep_charN that takes a table array.
+ * The new location of each string is written into this array.
+ */
+char *BLI_string_join_array_by_sep_char_with_tableN(
+        char sep, char *table[], const char *strings[], uint strings_len)
+{
+	uint total_len = 0;
+	for (uint i = 0; i < strings_len; i++) {
+		total_len += strlen(strings[i]) + 1;
+	}
+	if (total_len == 0) {
+		total_len = 1;
+	}
+
+	char *result = MEM_mallocN(sizeof(char) * total_len, __func__); 
+	char *c = result;
+	if (strings_len != 0) {
+		for (uint i = 0; i < strings_len; i++) {
+			table[i] = c;  /* <-- only difference to BLI_string_join_array_by_sep_charN. */
+			c += BLI_strcpy_rlen(c, strings[i]);
+			*c = sep;
+			c++;
+		}
+		c--;
+	}
+	*c = '\0';
+	return result;
+}
+
+/** \} */
diff --git a/source/blender/blenlib/intern/timecode.c b/source/blender/blenlib/intern/timecode.c
index e755a7ae52c..7856bad4d99 100644
--- a/source/blender/blenlib/intern/timecode.c
+++ b/source/blender/blenlib/intern/timecode.c
@@ -94,11 +94,11 @@ size_t BLI_timecode_string_from_time(
 		 * to cope with 'half' frames, etc., which should be fine in most cases
 		 */
 		seconds = (int)time;
-		frames = iroundf((float)(((double)time - (double)seconds) * fps));
+		frames = round_fl_to_int((float)(((double)time - (double)seconds) * fps));
 	}
 	else {
 		/* seconds (with pixel offset rounding) */
-		seconds = iroundf(time);
+		seconds = round_fl_to_int(time);
 	}
 
 	switch (timecode_style) {
@@ -169,7 +169,7 @@ size_t BLI_timecode_string_from_time(
 
 			/* precision of decimal part */
 			const int ms_dp = (power <= 0) ? (1 - power) : 1;
-			const int ms = iroundf((time - (float)seconds) * 1000.0f);
+			const int ms = round_fl_to_int((time - (float)seconds) * 1000.0f);
 
 			rlen = BLI_snprintf_rlen(
 			           str, maxncpy, "%s%02d:%02d:%02d,%0*d", neg, hours, minutes, seconds, ms_dp, ms);
@@ -183,7 +183,7 @@ size_t BLI_timecode_string_from_time(
 				rlen = BLI_snprintf_rlen(str, maxncpy, "%.*f", 1 - power, time_seconds);
 			}
 			else {
-				rlen = BLI_snprintf_rlen(str, maxncpy, "%d", iroundf(time_seconds));
+				rlen = BLI_snprintf_rlen(str, maxncpy, "%d", round_fl_to_int(time_seconds));
 			}
 			break;
 		}
@@ -250,7 +250,7 @@ size_t BLI_timecode_string_from_time_seconds(
 		rlen = BLI_snprintf_rlen(str, maxncpy, "%.*f", 1 - power, time_seconds);
 	}
 	else {
-		rlen = BLI_snprintf_rlen(str, maxncpy, "%d", iroundf(time_seconds));
+		rlen = BLI_snprintf_rlen(str, maxncpy, "%d", round_fl_to_int(time_seconds));
 	}
 
 	return rlen;
diff --git a/source/blender/blenloader/intern/readfile.c b/source/blender/blenloader/intern/readfile.c
index f224f0b5633..3b7662be2b2 100644
--- a/source/blender/blenloader/intern/readfile.c
+++ b/source/blender/blenloader/intern/readfile.c
@@ -638,7 +638,7 @@ static Main *blo_find_main(FileData *fd, const char *filepath, const char *relab
 	
 	/* Add library datablock itself to 'main' Main, since libraries are **never** linked data.
 	 * Fixes bug where you could end with all ID_LI datablocks having the same name... */
-	lib = BKE_libblock_alloc(mainlist->first, ID_LI, "Lib");
+	lib = BKE_libblock_alloc(mainlist->first, ID_LI, "Lib", 0);
 	lib->id.us = ID_FAKE_USERS(lib);  /* Important, consistency with main ID reading code from read_libblock(). */
 	BLI_strncpy(lib->name, filepath, sizeof(lib->name));
 	BLI_strncpy(lib->filepath, name1, sizeof(lib->filepath));
@@ -6003,16 +6003,6 @@ static void direct_link_scene(FileData *fd, Scene *sce)
 		sce->toolsettings->particle.scene = NULL;
 		sce->toolsettings->particle.object = NULL;
 		sce->toolsettings->gp_sculpt.paintcursor = NULL;
-
-		/* in rare cases this is needed, see [#33806] */
-		if (sce->toolsettings->vpaint) {
-			sce->toolsettings->vpaint->vpaint_prev = NULL;
-			sce->toolsettings->vpaint->tot = 0;
-		}
-		if (sce->toolsettings->wpaint) {
-			sce->toolsettings->wpaint->wpaint_prev = NULL;
-			sce->toolsettings->wpaint->tot = 0;
-		}
 		
 		/* relink grease pencil drawing brushes */
 		link_list(fd, &sce->toolsettings->gp_brushes);
@@ -6162,11 +6152,6 @@ static void direct_link_scene(FileData *fd, Scene *sce)
 		sce->r.avicodecdata->lpFormat = newdataadr(fd, sce->r.avicodecdata->lpFormat);
 		sce->r.avicodecdata->lpParms = newdataadr(fd, sce->r.avicodecdata->lpParms);
 	}
-	
-	sce->r.qtcodecdata = newdataadr(fd, sce->r.qtcodecdata);
-	if (sce->r.qtcodecdata) {
-		sce->r.qtcodecdata->cdParms = newdataadr(fd, sce->r.qtcodecdata->cdParms);
-	}
 	if (sce->r.ffcodecdata.properties) {
 		sce->r.ffcodecdata.properties = newdataadr(fd, sce->r.ffcodecdata.properties);
 		IDP_DirectLinkGroup_OrFree(&sce->r.ffcodecdata.properties, (fd->flags & FD_FLAGS_SWITCH_ENDIAN), fd);
@@ -9912,6 +9897,8 @@ void BLO_expand_main(void *fdhandle, Main *mainvar)
 					case ID_CF:
 						expand_cachefile(fd, mainvar, (CacheFile *)id);
 						break;
+					default:
+						break;
 					}
 					
 					do_it = true;
diff --git a/source/blender/blenloader/intern/versioning_270.c b/source/blender/blenloader/intern/versioning_270.c
index 94d335870ca..8459e080f99 100644
--- a/source/blender/blenloader/intern/versioning_270.c
+++ b/source/blender/blenloader/intern/versioning_270.c
@@ -60,6 +60,7 @@
 #include "DNA_genfile.h"
 
 #include "BKE_animsys.h"
+#include "BKE_brush.h"
 #include "BKE_colortools.h"
 #include "BKE_library.h"
 #include "BKE_main.h"
@@ -1652,6 +1653,23 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *main)
 			}
 		}
 
+		{
+			Brush *br;
+			br = (Brush *)BKE_libblock_find_name_ex(main, ID_BR, "Average");
+			if (!br) {
+				br = BKE_brush_add(main, "Average", OB_MODE_VERTEX_PAINT | OB_MODE_WEIGHT_PAINT);
+				br->vertexpaint_tool = PAINT_BLEND_AVERAGE;
+				br->ob_mode = OB_MODE_VERTEX_PAINT | OB_MODE_WEIGHT_PAINT;
+			}
+
+			br = (Brush *)BKE_libblock_find_name_ex(main, ID_BR, "Smear");
+			if (!br) {
+				br = BKE_brush_add(main, "Smear", OB_MODE_VERTEX_PAINT | OB_MODE_WEIGHT_PAINT);
+				br->vertexpaint_tool = PAINT_BLEND_SMEAR;
+				br->ob_mode = OB_MODE_VERTEX_PAINT | OB_MODE_WEIGHT_PAINT;
+			}
+		}
+
 		FOREACH_NODETREE(main, ntree, id) {
 			if (ntree->type == NTREE_COMPOSIT) {
 				do_versions_compositor_render_passes(ntree);
@@ -1659,7 +1677,7 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *main)
 		} FOREACH_NODETREE_END
 	}
 
-	{
+	if (!MAIN_VERSION_ATLEAST(main, 279, 0)) {
 		for (Scene *scene = main->scene.first; scene; scene = scene->id.next) {
 			if (scene->r.im_format.exr_codec == R_IMF_EXR_CODEC_DWAB) {
 				scene->r.im_format.exr_codec = R_IMF_EXR_CODEC_DWAA;
@@ -1671,12 +1689,23 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *main)
 			CustomData_set_layer_name(&me->vdata, CD_MDEFORMVERT, 0, "");
 		}
 	}
+
+	{
+		/* Fix for invalid state of screen due to bug in older versions. */
+		for (bScreen *sc = main->screen.first; sc; sc = sc->id.next) {
+			for (ScrArea *sa = sc->areabase.first; sa; sa = sa->next) {
+				if(sa->full && sc->state == SCREENNORMAL) {
+					sa->full = NULL;
+				}
+			}
+		}
+	}
 }
 
 void do_versions_after_linking_270(Main *main)
 {
 	/* To be added to next subversion bump! */
-	{
+	if (!MAIN_VERSION_ATLEAST(main, 279, 0)) {
 		FOREACH_NODETREE(main, ntree, id) {
 			if (ntree->type == NTREE_COMPOSIT) {
 				ntreeSetTypes(NULL, ntree);
diff --git a/source/blender/blenloader/intern/versioning_defaults.c b/source/blender/blenloader/intern/versioning_defaults.c
index e7e0054e7a1..3d3e73eb470 100644
--- a/source/blender/blenloader/intern/versioning_defaults.c
+++ b/source/blender/blenloader/intern/versioning_defaults.c
@@ -58,6 +58,9 @@ void BLO_update_defaults_userpref_blend(void)
 	U.uiflag |= USER_QUIT_PROMPT;
 	U.uiflag |= USER_CONTINUOUS_MOUSE;
 
+	/* See T45301 */
+	U.uiflag |= USER_LOCK_CURSOR_ADJUST;
+
 	U.versions = 1;
 	U.savetime = 2;
 
@@ -106,6 +109,16 @@ void BLO_update_defaults_startup_blend(Main *bmain)
 				sculpt->detail_size = 12;
 			}
 			
+			if (ts->vpaint) {
+				VPaint *vp = ts->vpaint;
+				vp->radial_symm[0] = vp->radial_symm[1] = vp->radial_symm[2] = 1;
+			}
+
+			if (ts->wpaint) {
+				VPaint *wp = ts->wpaint;
+				wp->radial_symm[0] = wp->radial_symm[1] = wp->radial_symm[2] = 1;
+			}
+
 			if (ts->gp_sculpt.brush[0].size == 0) {
 				GP_BrushEdit_Settings *gset = &ts->gp_sculpt;
 				GP_EditBrush_Data *brush;
@@ -233,6 +246,20 @@ void BLO_update_defaults_startup_blend(Main *bmain)
 			br->ob_mode = OB_MODE_TEXTURE_PAINT;
 		}
 
+		/* Vertex/Weight Paint */
+		br = (Brush *)BKE_libblock_find_name_ex(bmain, ID_BR, "Average");
+		if (!br) {
+			br = BKE_brush_add(bmain, "Average", OB_MODE_VERTEX_PAINT | OB_MODE_WEIGHT_PAINT);
+			br->vertexpaint_tool = PAINT_BLEND_AVERAGE;
+			br->ob_mode = OB_MODE_VERTEX_PAINT | OB_MODE_WEIGHT_PAINT;
+		}
+		br = (Brush *)BKE_libblock_find_name_ex(bmain, ID_BR, "Smear");
+		if (!br) {
+			br = BKE_brush_add(bmain, "Smear", OB_MODE_VERTEX_PAINT | OB_MODE_WEIGHT_PAINT);
+			br->vertexpaint_tool = PAINT_BLEND_SMEAR;
+			br->ob_mode = OB_MODE_VERTEX_PAINT | OB_MODE_WEIGHT_PAINT;
+		}
+
 		br = (Brush *)BKE_libblock_find_name_ex(bmain, ID_BR, "Mask");
 		if (br) {
 			br->imagepaint_tool = PAINT_TOOL_MASK;
diff --git a/source/blender/blenloader/intern/versioning_legacy.c b/source/blender/blenloader/intern/versioning_legacy.c
index c29ffbb76f2..ad37679800b 100644
--- a/source/blender/blenloader/intern/versioning_legacy.c
+++ b/source/blender/blenloader/intern/versioning_legacy.c
@@ -2911,12 +2911,12 @@ void blo_do_versions_pre250(FileData *fd, Library *lib, Main *main)
 		Scene *sce;
 		for (sce = main->scene.first; sce; sce = sce->id.next) {
 			if (sce->toolsettings->skgen_subdivisions[0] == sce->toolsettings->skgen_subdivisions[1] ||
-				sce->toolsettings->skgen_subdivisions[0] == sce->toolsettings->skgen_subdivisions[2] ||
-				sce->toolsettings->skgen_subdivisions[1] == sce->toolsettings->skgen_subdivisions[2])
+			    sce->toolsettings->skgen_subdivisions[0] == sce->toolsettings->skgen_subdivisions[2] ||
+			    sce->toolsettings->skgen_subdivisions[1] == sce->toolsettings->skgen_subdivisions[2])
 			{
-					sce->toolsettings->skgen_subdivisions[0] = SKGEN_SUB_CORRELATION;
-					sce->toolsettings->skgen_subdivisions[1] = SKGEN_SUB_LENGTH;
-					sce->toolsettings->skgen_subdivisions[2] = SKGEN_SUB_ANGLE;
+				sce->toolsettings->skgen_subdivisions[0] = SKGEN_SUB_CORRELATION;
+				sce->toolsettings->skgen_subdivisions[1] = SKGEN_SUB_LENGTH;
+				sce->toolsettings->skgen_subdivisions[2] = SKGEN_SUB_ANGLE;
 			}
 		}
 	}
diff --git a/source/blender/blenloader/intern/writefile.c b/source/blender/blenloader/intern/writefile.c
index ee9665dc834..2648ebdc395 100644
--- a/source/blender/blenloader/intern/writefile.c
+++ b/source/blender/blenloader/intern/writefile.c
@@ -2688,13 +2688,6 @@ static void write_scene(WriteData *wd, Scene *sce)
 			writedata(wd, DATA, sce->r.avicodecdata->cbParms, sce->r.avicodecdata->lpParms);
 		}
 	}
-
-	if (sce->r.qtcodecdata) {
-		writestruct(wd, DATA, QuicktimeCodecData, 1, sce->r.qtcodecdata);
-		if (sce->r.qtcodecdata->cdParms) {
-			writedata(wd, DATA, sce->r.qtcodecdata->cdSize, sce->r.qtcodecdata->cdParms);
-		}
-	}
 	if (sce->r.ffcodecdata.properties) {
 		IDP_WriteProperty(sce->r.ffcodecdata.properties, wd);
 	}
@@ -3841,6 +3834,9 @@ static bool write_file_handle(
 		}
 
 		for (; id; id = id->next) {
+			/* We should never attempt to write non-regular IDs (i.e. all kind of temp/runtime ones). */
+			BLI_assert((id->tag & (LIB_TAG_NO_MAIN | LIB_TAG_NO_USER_REFCOUNT | LIB_TAG_NOT_ALLOCATED)) == 0);
+
 			switch ((ID_Type)GS(id->name)) {
 				case ID_WM:
 					write_windowmanager(wd, (wmWindowManager *)id);
diff --git a/source/blender/blentranslation/CMakeLists.txt b/source/blender/blentranslation/CMakeLists.txt
index c0dce5b4f0d..320a784ea25 100644
--- a/source/blender/blentranslation/CMakeLists.txt
+++ b/source/blender/blentranslation/CMakeLists.txt
@@ -61,4 +61,6 @@ endif()
 
 blender_add_lib(bf_blentranslation "${SRC}" "${INC}" "${INC_SYS}")
 
-add_subdirectory(msgfmt)
+if(WITH_INTERNATIONAL)
+	add_subdirectory(msgfmt)
+endif()
diff --git a/source/blender/blentranslation/msgfmt/msgfmt.c b/source/blender/blentranslation/msgfmt/msgfmt.c
index 487d9fee7b4..3abce7b1d3f 100644
--- a/source/blender/blentranslation/msgfmt/msgfmt.c
+++ b/source/blender/blentranslation/msgfmt/msgfmt.c
@@ -160,7 +160,8 @@ static char **get_keys_sorted(GHash *messages, const uint32_t num_keys)
 	return keys;
 }
 
-BLI_INLINE size_t uint32_to_bytes(const int value, char *bytes) {
+BLI_INLINE size_t uint32_to_bytes(const int value, char *bytes)
+{
 	size_t i;
 	for (i = 0; i < sizeof(value); i++) {
 		bytes[i] = (char) ((value >> ((int)i * 8)) & 0xff);
@@ -168,7 +169,8 @@ BLI_INLINE size_t uint32_to_bytes(const int value, char *bytes) {
 	return i;
 }
 
-BLI_INLINE size_t msg_to_bytes(char *msg, char *bytes, uint32_t size) {
+BLI_INLINE size_t msg_to_bytes(char *msg, char *bytes, uint32_t size)
+{
 	/* Note that we also perform replacing of our NULLSEP placeholder by real NULL char... */
 	size_t i;
 	for (i = 0; i < size; i++, msg++, bytes++) {
@@ -452,7 +454,8 @@ static int make(const char *input_file_name, const char *output_file_name)
 	return EXIT_SUCCESS;
 }
 
-int main(int argc, char **argv) {
+int main(int argc, char **argv)
+{
 	if (argc != 3) {
 		printf("Usage: %s <input.po> <output.mo>\n", argv[0]);
 		return EXIT_FAILURE;
diff --git a/source/blender/bmesh/intern/bmesh_core.c b/source/blender/bmesh/intern/bmesh_core.c
index 4fe14fdf5c9..c7ff93cf504 100644
--- a/source/blender/bmesh/intern/bmesh_core.c
+++ b/source/blender/bmesh/intern/bmesh_core.c
@@ -32,7 +32,7 @@
 #include "BLI_array.h"
 #include "BLI_alloca.h"
 #include "BLI_linklist_stack.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 
 #include "BLT_translation.h"
 
@@ -2415,7 +2415,8 @@ static void bmesh_kernel_vert_separate__cleanup(BMesh *bm, LinkNode *edges_separ
 					/* don't visit again */
 					n_prev->next = n_step->next;
 				}
-			} while ((n_prev = n_step),
+			} while ((void)
+			         (n_prev = n_step),
 			         (n_step = n_step->next));
 
 		} while ((n_orig = n_orig->next) && n_orig->next);
diff --git a/source/blender/bmesh/intern/bmesh_edgeloop.c b/source/blender/bmesh/intern/bmesh_edgeloop.c
index 5780dc57d78..b3b23933d2f 100644
--- a/source/blender/bmesh/intern/bmesh_edgeloop.c
+++ b/source/blender/bmesh/intern/bmesh_edgeloop.c
@@ -32,6 +32,7 @@
 #include "BLI_math_vector.h"
 #include "BLI_listbase.h"
 #include "BLI_mempool.h"
+#include "BLI_utildefines_iter.h"
 
 #include "bmesh.h"
 
@@ -708,21 +709,16 @@ void BM_edgeloop_expand(
 	}
 
 	if (el_store->len < el_store_len) {
-		const int step = max_ii(1, el_store->len / (el_store->len % el_store_len));
-		LinkData *node_first = el_store->verts.first;
-		LinkData *node_curr = node_first;
+		LinkData *node_curr = el_store->verts.first;
 
-		do {
-			LinkData *node_curr_init = node_curr;
-			LinkData *node_curr_copy;
-			int i = 0;
-			BLI_LISTBASE_CIRCULAR_FORWARD_BEGIN (&el_store->verts, node_curr, node_curr_init) {
-				if (i++ < step) {
-					break;
-				}
+		int iter_prev = 0;
+		BLI_FOREACH_SPARSE_RANGE(el_store->len, (el_store_len - el_store->len), iter) {
+			while (iter_prev < iter) {
+				node_curr = node_curr->next;
+				iter_prev += 1;
 			}
-			BLI_LISTBASE_CIRCULAR_FORWARD_END (&el_store->verts, node_curr, node_curr_init);
 
+			LinkData *node_curr_copy;
 			node_curr_copy = MEM_dupallocN(node_curr);
 			if (split == false) {
 				BLI_insertlinkafter(&el_store->verts, node_curr, node_curr_copy);
@@ -730,7 +726,8 @@ void BM_edgeloop_expand(
 			}
 			else {
 				if (node_curr->next || (el_store->flag & BM_EDGELOOP_IS_CLOSED)) {
-					EDGE_SPLIT(node_curr_copy, node_curr->next ? node_curr->next : (LinkData *)el_store->verts.first);
+					EDGE_SPLIT(node_curr_copy,
+					           node_curr->next ? node_curr->next : (LinkData *)el_store->verts.first);
 					BLI_insertlinkafter(&el_store->verts, node_curr, node_curr_copy);
 					node_curr = node_curr_copy->next;
 				}
@@ -742,9 +739,11 @@ void BM_edgeloop_expand(
 				split_swap = !split_swap;
 			}
 			el_store->len++;
-		} while (el_store->len < el_store_len);
+			iter_prev += 1;
+		}
 	}
 
+#undef BKE_FOREACH_SUBSET_OF_RANGE
 #undef EDGE_SPLIT
 
 	BLI_assert(el_store->len == el_store_len);
diff --git a/source/blender/bmesh/intern/bmesh_mesh_conv.c b/source/blender/bmesh/intern/bmesh_mesh_conv.c
index 59ce91a3e70..7787d704b59 100644
--- a/source/blender/bmesh/intern/bmesh_mesh_conv.c
+++ b/source/blender/bmesh/intern/bmesh_mesh_conv.c
@@ -219,6 +219,11 @@ static BMFace *bm_face_create_from_mpoly(
 
 /**
  * \brief Mesh -> BMesh
+ * \param bm: The mesh to write into, while this is typically a newly created BMesh,
+ * merging into existing data is supported.
+ * Note the custom-data layout isn't used.
+ * If more comprehensive merging is needed we should move this into a separate function
+ * since this should be kept fast for edit-mode switching and storing undo steps.
  *
  * \warning This function doesn't calculate face normals.
  */
@@ -226,6 +231,9 @@ void BM_mesh_bm_from_me(
         BMesh *bm, Mesh *me,
         const struct BMeshFromMeshParams *params)
 {
+	const bool is_new =
+	        !(bm->totvert ||
+	          (bm->vdata.totlayer || bm->edata.totlayer || bm->pdata.totlayer || bm->ldata.totlayer));
 	MVert *mvert;
 	MEdge *medge;
 	MLoop *mloop;
@@ -233,19 +241,12 @@ void BM_mesh_bm_from_me(
 	KeyBlock *actkey, *block;
 	BMVert *v, **vtable = NULL;
 	BMEdge *e, **etable = NULL;
-	BMFace *f;
+	BMFace *f, **ftable = NULL;
 	float (*keyco)[3] = NULL;
-	int totuv, totloops, i, j;
-
-	/* free custom data */
-	/* this isnt needed in most cases but do just incase */
-	CustomData_free(&bm->vdata, bm->totvert);
-	CustomData_free(&bm->edata, bm->totedge);
-	CustomData_free(&bm->ldata, bm->totloop);
-	CustomData_free(&bm->pdata, bm->totface);
+	int totuv, totloops, i;
 
 	if (!me || !me->totvert) {
-		if (me) { /*no verts? still copy customdata layout*/
+		if (me && is_new) { /*no verts? still copy customdata layout*/
 			CustomData_copy(&me->vdata, &bm->vdata, CD_MASK_BMESH, CD_ASSIGN, 0);
 			CustomData_copy(&me->edata, &bm->edata, CD_MASK_BMESH, CD_ASSIGN, 0);
 			CustomData_copy(&me->ldata, &bm->ldata, CD_MASK_BMESH, CD_ASSIGN, 0);
@@ -259,19 +260,27 @@ void BM_mesh_bm_from_me(
 		return; /* sanity check */
 	}
 
-	vtable = MEM_mallocN(sizeof(void **) * me->totvert, "mesh to bmesh vtable");
+	if (is_new) {
+		CustomData_copy(&me->vdata, &bm->vdata, CD_MASK_BMESH, CD_CALLOC, 0);
+		CustomData_copy(&me->edata, &bm->edata, CD_MASK_BMESH, CD_CALLOC, 0);
+		CustomData_copy(&me->ldata, &bm->ldata, CD_MASK_BMESH, CD_CALLOC, 0);
+		CustomData_copy(&me->pdata, &bm->pdata, CD_MASK_BMESH, CD_CALLOC, 0);
 
-	CustomData_copy(&me->vdata, &bm->vdata, CD_MASK_BMESH, CD_CALLOC, 0);
-	CustomData_copy(&me->edata, &bm->edata, CD_MASK_BMESH, CD_CALLOC, 0);
-	CustomData_copy(&me->ldata, &bm->ldata, CD_MASK_BMESH, CD_CALLOC, 0);
-	CustomData_copy(&me->pdata, &bm->pdata, CD_MASK_BMESH, CD_CALLOC, 0);
+		/* make sure uv layer names are consisten */
+		totuv = CustomData_number_of_layers(&bm->pdata, CD_MTEXPOLY);
+		for (i = 0; i < totuv; i++) {
+			int li = CustomData_get_layer_index_n(&bm->pdata, CD_MTEXPOLY, i);
+			CustomData_set_layer_name(&bm->ldata, CD_MLOOPUV, i, bm->pdata.layers[li].name);
+		}
+	}
 
-	/* make sure uv layer names are consisten */
-	totuv = CustomData_number_of_layers(&bm->pdata, CD_MTEXPOLY);
-	for (i = 0; i < totuv; i++) {
-		int li = CustomData_get_layer_index_n(&bm->pdata, CD_MTEXPOLY, i);
-		CustomData_set_layer_name(&bm->ldata, CD_MLOOPUV, i, bm->pdata.layers[li].name);
+	/* -------------------------------------------------------------------- */
+	/* Shape Key */
+	int tot_shape_keys = me->key ? BLI_listbase_count(&me->key->block) : 0;
+	if (is_new == false) {
+		tot_shape_keys = min_ii(tot_shape_keys, CustomData_number_of_layers(&bm->vdata, CD_SHAPEKEY));
 	}
+	const float (**shape_key_table)[3] = tot_shape_keys ? BLI_array_alloca(shape_key_table, tot_shape_keys) : NULL;
 
 	if ((params->active_shapekey != 0) && (me->key != NULL)) {
 		actkey = BLI_findlink(&me->key->block, params->active_shapekey - 1);
@@ -280,63 +289,68 @@ void BM_mesh_bm_from_me(
 		actkey = NULL;
 	}
 
-	const int tot_shape_keys = me->key ? BLI_listbase_count(&me->key->block) : 0;
-	const float (**shape_key_table)[3] = tot_shape_keys ? BLI_array_alloca(shape_key_table, tot_shape_keys) : NULL;
-
-	if (tot_shape_keys || params->add_key_index) {
-		CustomData_add_layer(&bm->vdata, CD_SHAPE_KEYINDEX, CD_ASSIGN, NULL, 0);
+	if (is_new) {
+		if (tot_shape_keys || params->add_key_index) {
+			CustomData_add_layer(&bm->vdata, CD_SHAPE_KEYINDEX, CD_ASSIGN, NULL, 0);
+		}
 	}
 
 	if (tot_shape_keys) {
-		/* check if we need to generate unique ids for the shapekeys.
-		 * this also exists in the file reading code, but is here for
-		 * a sanity check */
-		if (!me->key->uidgen) {
-			fprintf(stderr,
-			        "%s had to generate shape key uid's in a situation we shouldn't need to! "
-			        "(bmesh internal error)\n",
-			        __func__);
-
-			me->key->uidgen = 1;
-			for (block = me->key->block.first; block; block = block->next) {
-				block->uid = me->key->uidgen++;
+		if (is_new) {
+			/* check if we need to generate unique ids for the shapekeys.
+			 * this also exists in the file reading code, but is here for
+			 * a sanity check */
+			if (!me->key->uidgen) {
+				fprintf(stderr,
+				        "%s had to generate shape key uid's in a situation we shouldn't need to! "
+				        "(bmesh internal error)\n",
+				        __func__);
+
+				me->key->uidgen = 1;
+				for (block = me->key->block.first; block; block = block->next) {
+					block->uid = me->key->uidgen++;
+				}
 			}
 		}
 
 		if (actkey && actkey->totelem == me->totvert) {
-			keyco = actkey->data;
-			bm->shapenr = params->active_shapekey;
+			keyco = params->use_shapekey ? actkey->data : NULL;
+			if (is_new) {
+				bm->shapenr = params->active_shapekey;
+			}
 		}
 
-		for (i = 0, block = me->key->block.first; block; block = block->next, i++) {
-			CustomData_add_layer_named(&bm->vdata, CD_SHAPEKEY,
-			                           CD_ASSIGN, NULL, 0, block->name);
-
-			j = CustomData_get_layer_index_n(&bm->vdata, CD_SHAPEKEY, i);
-			bm->vdata.layers[j].uid = block->uid;
-
+		for (i = 0, block = me->key->block.first; i < tot_shape_keys; block = block->next, i++) {
+			if (is_new) {
+				CustomData_add_layer_named(&bm->vdata, CD_SHAPEKEY,
+				                           CD_ASSIGN, NULL, 0, block->name);
+				int j = CustomData_get_layer_index_n(&bm->vdata, CD_SHAPEKEY, i);
+				bm->vdata.layers[j].uid = block->uid;
+			}
 			shape_key_table[i] = (const float (*)[3])block->data;
 		}
 	}
 
-	CustomData_bmesh_init_pool(&bm->vdata, me->totvert, BM_VERT);
-	CustomData_bmesh_init_pool(&bm->edata, me->totedge, BM_EDGE);
-	CustomData_bmesh_init_pool(&bm->ldata, me->totloop, BM_LOOP);
-	CustomData_bmesh_init_pool(&bm->pdata, me->totpoly, BM_FACE);
+	if (is_new) {
+		CustomData_bmesh_init_pool(&bm->vdata, me->totvert, BM_VERT);
+		CustomData_bmesh_init_pool(&bm->edata, me->totedge, BM_EDGE);
+		CustomData_bmesh_init_pool(&bm->ldata, me->totloop, BM_LOOP);
+		CustomData_bmesh_init_pool(&bm->pdata, me->totpoly, BM_FACE);
 
-	BM_mesh_cd_flag_apply(bm, me->cd_flag);
+		BM_mesh_cd_flag_apply(bm, me->cd_flag);
+	}
 
 	const int cd_vert_bweight_offset = CustomData_get_offset(&bm->vdata, CD_BWEIGHT);
 	const int cd_edge_bweight_offset = CustomData_get_offset(&bm->edata, CD_BWEIGHT);
 	const int cd_edge_crease_offset  = CustomData_get_offset(&bm->edata, CD_CREASE);
 	const int cd_shape_key_offset = me->key ? CustomData_get_offset(&bm->vdata, CD_SHAPEKEY) : -1;
-	const int cd_shape_keyindex_offset = (tot_shape_keys || params->add_key_index) ?
+	const int cd_shape_keyindex_offset = is_new && (tot_shape_keys || params->add_key_index) ?
 	          CustomData_get_offset(&bm->vdata, CD_SHAPE_KEYINDEX) : -1;
 
+	vtable = MEM_mallocN(sizeof(BMVert **) * me->totvert, __func__);
+
 	for (i = 0, mvert = me->mvert; i < me->totvert; i++, mvert++) {
-		v = vtable[i] = BM_vert_create(
-		        bm, keyco && params->use_shapekey ? keyco[i] : mvert->co, NULL,
-		        BM_CREATE_SKIP_CD);
+		v = vtable[i] = BM_vert_create(bm, keyco ? keyco[i] : mvert->co, NULL, BM_CREATE_SKIP_CD);
 		BM_elem_index_set(v, i); /* set_ok */
 
 		/* transfer flag */
@@ -360,20 +374,16 @@ void BM_mesh_bm_from_me(
 		/* set shapekey data */
 		if (tot_shape_keys) {
 			float (*co_dst)[3] = BM_ELEM_CD_GET_VOID_P(v, cd_shape_key_offset);
-			for (j = 0; j < tot_shape_keys; j++, co_dst++) {
+			for (int j = 0; j < tot_shape_keys; j++, co_dst++) {
 				copy_v3_v3(*co_dst, shape_key_table[j][i]);
 			}
 		}
 	}
-
-	bm->elem_index_dirty &= ~BM_VERT; /* added in order, clear dirty flag */
-
-	if (!me->totedge) {
-		MEM_freeN(vtable);
-		return;
+	if (is_new) {
+		bm->elem_index_dirty &= ~BM_VERT; /* added in order, clear dirty flag */
 	}
 
-	etable = MEM_mallocN(sizeof(void **) * me->totedge, "mesh to bmesh etable");
+	etable = MEM_mallocN(sizeof(BMEdge **) * me->totedge, __func__);
 
 	medge = me->medge;
 	for (i = 0; i < me->totedge; i++, medge++) {
@@ -395,8 +405,14 @@ void BM_mesh_bm_from_me(
 		if (cd_edge_crease_offset  != -1) BM_ELEM_CD_SET_FLOAT(e, cd_edge_crease_offset,  (float)medge->crease  / 255.0f);
 
 	}
+	if (is_new) {
+		bm->elem_index_dirty &= ~BM_EDGE; /* added in order, clear dirty flag */
+	}
 
-	bm->elem_index_dirty &= ~BM_EDGE; /* added in order, clear dirty flag */
+	/* only needed for selection. */
+	if (me->mselect && me->totselect != 0) {
+		ftable = MEM_mallocN(sizeof(BMFace **) * me->totpoly, __func__);
+	}
 
 	mloop = me->mloop;
 	mp = me->mpoly;
@@ -406,6 +422,9 @@ void BM_mesh_bm_from_me(
 
 		f = bm_face_create_from_mpoly(mp, mloop + mp->loopstart,
 		                              bm, vtable, etable);
+		if (ftable != NULL) {
+			ftable[i] = f;
+		}
 
 		if (UNLIKELY(f == NULL)) {
 			printf("%s: Warning! Bad face in mesh"
@@ -428,7 +447,7 @@ void BM_mesh_bm_from_me(
 		f->mat_nr = mp->mat_nr;
 		if (i == me->act_face) bm->act_face = f;
 
-		j = mp->loopstart;
+		int j = mp->loopstart;
 		l_iter = l_first = BM_FACE_FIRST_LOOP(f);
 		do {
 			/* don't use 'j' since we may have skipped some faces, hence some loops. */
@@ -445,54 +464,49 @@ void BM_mesh_bm_from_me(
 			BM_face_normal_update(f);
 		}
 	}
+	if (is_new) {
+		bm->elem_index_dirty &= ~(BM_FACE | BM_LOOP); /* added in order, clear dirty flag */
+	}
 
-	bm->elem_index_dirty &= ~(BM_FACE | BM_LOOP); /* added in order, clear dirty flag */
+	/* -------------------------------------------------------------------- */
+	/* MSelect clears the array elements (avoid adding multiple times).
+	 *
+	 * Take care to keep this last and not use (v/e/ftable) after this.
+	 */
 
 	if (me->mselect && me->totselect != 0) {
-
-		BMVert **vert_array = MEM_mallocN(sizeof(BMVert *) * bm->totvert, "VSelConv");
-		BMEdge **edge_array = MEM_mallocN(sizeof(BMEdge *) * bm->totedge, "ESelConv");
-		BMFace **face_array = MEM_mallocN(sizeof(BMFace *) * bm->totface, "FSelConv");
 		MSelect *msel;
-
-#pragma omp parallel sections if (bm->totvert + bm->totedge + bm->totface >= BM_OMP_LIMIT)
-		{
-#pragma omp section
-			{ BM_iter_as_array(bm, BM_VERTS_OF_MESH, NULL, (void **)vert_array, bm->totvert); }
-#pragma omp section
-			{ BM_iter_as_array(bm, BM_EDGES_OF_MESH, NULL, (void **)edge_array, bm->totedge); }
-#pragma omp section
-			{ BM_iter_as_array(bm, BM_FACES_OF_MESH, NULL, (void **)face_array, bm->totface); }
-		}
-
 		for (i = 0, msel = me->mselect; i < me->totselect; i++, msel++) {
+			BMElem **ele_p;
 			switch (msel->type) {
 				case ME_VSEL:
-					BM_select_history_store(bm, (BMElem *)vert_array[msel->index]);
+					ele_p = (BMElem **)&vtable[msel->index];
 					break;
 				case ME_ESEL:
-					BM_select_history_store(bm, (BMElem *)edge_array[msel->index]);
+					ele_p = (BMElem **)&etable[msel->index];
 					break;
 				case ME_FSEL:
-					BM_select_history_store(bm, (BMElem *)face_array[msel->index]);
+					ele_p = (BMElem **)&ftable[msel->index];
 					break;
+				default:
+					continue;
 			}
-		}
 
-		MEM_freeN(vert_array);
-		MEM_freeN(edge_array);
-		MEM_freeN(face_array);
+			if (*ele_p != NULL) {
+				BM_select_history_store_notest(bm, *ele_p);
+				*ele_p = NULL;
+			}
+		}
 	}
 	else {
-		me->totselect = 0;
-		if (me->mselect) {
-			MEM_freeN(me->mselect);
-			me->mselect = NULL;
-		}
+		BM_select_history_clear(bm);
 	}
 
 	MEM_freeN(vtable);
 	MEM_freeN(etable);
+	if (ftable) {
+		MEM_freeN(ftable);
+	}
 }
 
 
diff --git a/source/blender/bmesh/intern/bmesh_mesh_validate.c b/source/blender/bmesh/intern/bmesh_mesh_validate.c
index 7c9ebc800a3..3a6a3543bc8 100644
--- a/source/blender/bmesh/intern/bmesh_mesh_validate.c
+++ b/source/blender/bmesh/intern/bmesh_mesh_validate.c
@@ -41,7 +41,7 @@
 
 
 /* macro which inserts the function name */
-#if defined __GNUC__ || defined __sun
+#if defined __GNUC__
 #  define ERRMSG(format, args...) { fprintf(stderr, "%s: " format ", " AT "\n", __func__, ##args); errtot++; } (void)0
 #else
 #  define ERRMSG(format, ...) { fprintf(stderr, "%s: " format ", " AT "\n", __func__, __VA_ARGS__); errtot++; } (void)0
diff --git a/source/blender/bmesh/intern/bmesh_polygon.c b/source/blender/bmesh/intern/bmesh_polygon.c
index a4621b45fe6..7b9d17b27b5 100644
--- a/source/blender/bmesh/intern/bmesh_polygon.c
+++ b/source/blender/bmesh/intern/bmesh_polygon.c
@@ -39,6 +39,8 @@
 #include "BLI_polyfill2d.h"
 #include "BLI_polyfill2d_beautify.h"
 #include "BLI_linklist.h"
+#include "BLI_edgehash.h"
+#include "BLI_heap.h"
 
 #include "bmesh.h"
 #include "bmesh_tools.h"
@@ -1474,3 +1476,147 @@ void BM_mesh_calc_tessellation(BMesh *bm, BMLoop *(*looptris)[3], int *r_looptri
 #undef USE_TESSFACE_SPEEDUP
 
 }
+
+
+/**
+ * A version of #BM_mesh_calc_tessellation that avoids degenerate triangles.
+ */
+void BM_mesh_calc_tessellation_beauty(BMesh *bm, BMLoop *(*looptris)[3], int *r_looptris_tot)
+{
+	/* this assumes all faces can be scan-filled, which isn't always true,
+	 * worst case we over alloc a little which is acceptable */
+#ifndef NDEBUG
+	const int looptris_tot = poly_to_tri_count(bm->totface, bm->totloop);
+#endif
+
+	BMIter iter;
+	BMFace *efa;
+	int i = 0;
+
+	MemArena *pf_arena = NULL;
+
+	/* use_beauty */
+	Heap *pf_heap = NULL;
+	EdgeHash *pf_ehash = NULL;
+
+	BM_ITER_MESH (efa, &iter, bm, BM_FACES_OF_MESH) {
+		/* don't consider two-edged faces */
+		if (UNLIKELY(efa->len < 3)) {
+			/* do nothing */
+		}
+		else if (efa->len == 3) {
+			BMLoop *l;
+			BMLoop **l_ptr = looptris[i++];
+			l_ptr[0] = l = BM_FACE_FIRST_LOOP(efa);
+			l_ptr[1] = l = l->next;
+			l_ptr[2] = l->next;
+		}
+		else if (efa->len == 4) {
+			BMLoop *l_v1 = BM_FACE_FIRST_LOOP(efa);
+			BMLoop *l_v2 = l_v1->next;
+			BMLoop *l_v3 = l_v2->next;
+			BMLoop *l_v4 = l_v1->prev;
+
+			/* #BM_verts_calc_rotate_beauty performs excessive checks we don't need!
+			 * It's meant for rotating edges, it also calculates a new normal.
+			 *
+			 * Use #BLI_polyfill_beautify_quad_rotate_calc since we have the normal.
+			 */
+#if 0
+			const bool split_13 = (BM_verts_calc_rotate_beauty(
+			        l_v1->v, l_v2->v, l_v3->v, l_v4->v, 0, 0) < 0.0f);
+#else
+			float axis_mat[3][3], v_quad[4][2];
+			axis_dominant_v3_to_m3(axis_mat, efa->no);
+			mul_v2_m3v3(v_quad[0], axis_mat, l_v1->v->co);
+			mul_v2_m3v3(v_quad[1], axis_mat, l_v2->v->co);
+			mul_v2_m3v3(v_quad[2], axis_mat, l_v3->v->co);
+			mul_v2_m3v3(v_quad[3], axis_mat, l_v4->v->co);
+
+			const bool split_13 = BLI_polyfill_beautify_quad_rotate_calc(
+			        v_quad[0], v_quad[1], v_quad[2], v_quad[3]) < 0.0f;
+#endif
+
+			BMLoop **l_ptr_a = looptris[i++];
+			BMLoop **l_ptr_b = looptris[i++];
+			if (split_13) {
+				l_ptr_a[0] = l_v1;
+				l_ptr_a[1] = l_v2;
+				l_ptr_a[2] = l_v3;
+
+				l_ptr_b[0] = l_v1;
+				l_ptr_b[1] = l_v3;
+				l_ptr_b[2] = l_v4;
+			}
+			else {
+				l_ptr_a[0] = l_v1;
+				l_ptr_a[1] = l_v2;
+				l_ptr_a[2] = l_v4;
+
+				l_ptr_b[0] = l_v2;
+				l_ptr_b[1] = l_v3;
+				l_ptr_b[2] = l_v4;
+			}
+		}
+		else {
+			int j;
+
+			BMLoop *l_iter;
+			BMLoop *l_first;
+			BMLoop **l_arr;
+
+			float axis_mat[3][3];
+			float (*projverts)[2];
+			unsigned int (*tris)[3];
+
+			const int totfilltri = efa->len - 2;
+
+			if (UNLIKELY(pf_arena == NULL)) {
+				pf_arena = BLI_memarena_new(BLI_MEMARENA_STD_BUFSIZE, __func__);
+				pf_heap = BLI_heap_new_ex(BLI_POLYFILL_ALLOC_NGON_RESERVE);
+				pf_ehash = BLI_edgehash_new_ex(__func__, BLI_POLYFILL_ALLOC_NGON_RESERVE);
+			}
+
+			tris = BLI_memarena_alloc(pf_arena, sizeof(*tris) * totfilltri);
+			l_arr = BLI_memarena_alloc(pf_arena, sizeof(*l_arr) * efa->len);
+			projverts = BLI_memarena_alloc(pf_arena, sizeof(*projverts) * efa->len);
+
+			axis_dominant_v3_to_m3_negate(axis_mat, efa->no);
+
+			j = 0;
+			l_iter = l_first = BM_FACE_FIRST_LOOP(efa);
+			do {
+				l_arr[j] = l_iter;
+				mul_v2_m3v3(projverts[j], axis_mat, l_iter->v->co);
+				j++;
+			} while ((l_iter = l_iter->next) != l_first);
+
+			BLI_polyfill_calc_arena((const float (*)[2])projverts, efa->len, 1, tris, pf_arena);
+
+			BLI_polyfill_beautify((const float (*)[2])projverts, efa->len, tris, pf_arena, pf_heap, pf_ehash);
+
+			for (j = 0; j < totfilltri; j++) {
+				BMLoop **l_ptr = looptris[i++];
+				unsigned int *tri = tris[j];
+
+				l_ptr[0] = l_arr[tri[0]];
+				l_ptr[1] = l_arr[tri[1]];
+				l_ptr[2] = l_arr[tri[2]];
+			}
+
+			BLI_memarena_clear(pf_arena);
+		}
+	}
+
+	if (pf_arena) {
+		BLI_memarena_free(pf_arena);
+
+		BLI_heap_free(pf_heap, NULL);
+		BLI_edgehash_free(pf_ehash, NULL);
+	}
+
+	*r_looptris_tot = i;
+
+	BLI_assert(i <= looptris_tot);
+
+}
diff --git a/source/blender/bmesh/intern/bmesh_polygon.h b/source/blender/bmesh/intern/bmesh_polygon.h
index d944f3a8bc5..313caac1243 100644
--- a/source/blender/bmesh/intern/bmesh_polygon.h
+++ b/source/blender/bmesh/intern/bmesh_polygon.h
@@ -33,6 +33,7 @@ struct Heap;
 #include "BLI_compiler_attrs.h"
 
 void  BM_mesh_calc_tessellation(BMesh *bm, BMLoop *(*looptris)[3], int *r_looptris_tot);
+void  BM_mesh_calc_tessellation_beauty(BMesh *bm, BMLoop *(*looptris)[3], int *r_looptris_tot);
 
 void  BM_face_calc_tessellation(
         const BMFace *f, const bool use_fixed_quad,
diff --git a/source/blender/bmesh/intern/bmesh_polygon_edgenet.c b/source/blender/bmesh/intern/bmesh_polygon_edgenet.c
index e515f9af63f..8a3cb329610 100644
--- a/source/blender/bmesh/intern/bmesh_polygon_edgenet.c
+++ b/source/blender/bmesh/intern/bmesh_polygon_edgenet.c
@@ -32,7 +32,7 @@
 #include "BLI_memarena.h"
 #include "BLI_array.h"
 #include "BLI_alloca.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 #include "BLI_linklist_stack.h"
 #include "BLI_sort.h"
 #include "BLI_sort_utils.h"
@@ -725,10 +725,30 @@ BLI_INLINE bool edge_isect_verts_point_2d(
         const BMEdge *e, const BMVert *v_a, const BMVert *v_b,
         float r_isect[2])
 {
-	return ((isect_seg_seg_v2_point(v_a->co, v_b->co, e->v1->co, e->v2->co, r_isect) == 1) &&
+	/* This bias seems like it could be too large,
+	 * mostly its not needed, see T52329 for example where it is. */
+	const float endpoint_bias = 1e-4f;
+	return ((isect_seg_seg_v2_point_ex(v_a->co, v_b->co, e->v1->co, e->v2->co, endpoint_bias, r_isect) == 1) &&
 	        ((e->v1 != v_a) && (e->v2 != v_a) && (e->v1 != v_b)  && (e->v2 != v_b)));
 }
 
+BLI_INLINE int axis_pt_cmp(const float pt_a[2], const float pt_b[2])
+{
+	if (pt_a[0] < pt_b[0]) {
+		return -1;
+	}
+	if (pt_a[0] > pt_b[0]) {
+		return 1;
+	}
+	if (pt_a[1] < pt_b[1]) {
+		return -1;
+	}
+	if (pt_a[1] > pt_b[1]) {
+		return 1;
+	}
+	return 0;
+}
+
 /**
  * Represents isolated edge-links,
  * each island owns contiguous slices of the vert array.
@@ -749,7 +769,8 @@ struct EdgeGroupIsland {
 	struct {
 		BMVert *min, *max;
 		/* used for sorting only */
-		float min_axis;
+		float min_axis[2];
+		float max_axis[2];
 	} vert_span;
 };
 
@@ -758,12 +779,11 @@ static int group_min_cmp_fn(const void *p1, const void *p2)
 	const struct EdgeGroupIsland *g1 = *(struct EdgeGroupIsland **)p1;
 	const struct EdgeGroupIsland *g2 = *(struct EdgeGroupIsland **)p2;
 	/* min->co[SORT_AXIS] hasn't been applied yet */
-	const float f1 = g1->vert_span.min_axis;
-	const float f2 = g2->vert_span.min_axis;
-
-	if (f1 < f2) return -1;
-	if (f1 > f2) return  1;
-	else         return  0;
+	int test = axis_pt_cmp(g1->vert_span.min_axis, g2->vert_span.min_axis);
+	if (UNLIKELY(test == 0)) {
+		test = axis_pt_cmp(g1->vert_span.max_axis, g2->vert_span.max_axis);
+	}
+	return test;
 }
 
 struct Edges_VertVert_BVHTreeTest {
@@ -993,8 +1013,8 @@ static int bm_face_split_edgenet_find_connection(
 			for (int j = 0; j < 2; j++) {
 				BMVert *v_iter = v_pair[j];
 				if (BM_elem_flag_test(v_iter, VERT_IS_VALID)) {
-					if (direction_sign ? (v_iter->co[SORT_AXIS] >= v_origin->co[SORT_AXIS]) :
-					                     (v_iter->co[SORT_AXIS] <= v_origin->co[SORT_AXIS]))
+					if (direction_sign ? (v_iter->co[SORT_AXIS] > v_origin->co[SORT_AXIS]) :
+					                     (v_iter->co[SORT_AXIS] < v_origin->co[SORT_AXIS]))
 					{
 						BLI_SMALLSTACK_PUSH(vert_search, v_iter);
 						BLI_SMALLSTACK_PUSH(vert_blacklist, v_iter);
@@ -1360,8 +1380,8 @@ bool BM_face_split_edgenet_connect_islands(
 			/* init with *any* different verts */
 			g->vert_span.min = ((BMEdge *)edge_links->link)->v1;
 			g->vert_span.max = ((BMEdge *)edge_links->link)->v2;
-			float min_axis =  FLT_MAX;
-			float max_axis = -FLT_MAX;
+			float min_axis[2] =  {FLT_MAX, FLT_MAX};
+			float max_axis[2] = {-FLT_MAX, -FLT_MAX};
 
 			do {
 				BMEdge *e = edge_links->link;
@@ -1372,24 +1392,29 @@ bool BM_face_split_edgenet_connect_islands(
 					BLI_assert(v_iter->head.htype == BM_VERT);
 					/* ideally we could use 'v_iter->co[SORT_AXIS]' here,
 					 * but we need to sort the groups before setting the vertex array order */
+					const float axis_value[2] = {
 #if SORT_AXIS == 0
-					const float axis_value = dot_m3_v3_row_x(axis_mat, v_iter->co);
+					    dot_m3_v3_row_x(axis_mat, v_iter->co),
+					    dot_m3_v3_row_y(axis_mat, v_iter->co),
 #else
-					const float axis_value = dot_m3_v3_row_y(axis_mat, v_iter->co);
+					    dot_m3_v3_row_y(axis_mat, v_iter->co),
+					    dot_m3_v3_row_x(axis_mat, v_iter->co),
 #endif
+					};
 
-					if (axis_value < min_axis) {
+					if (axis_pt_cmp(axis_value, min_axis) == -1) {
 						g->vert_span.min = v_iter;
-						min_axis = axis_value;
+						copy_v2_v2(min_axis, axis_value);
 					}
-					if (axis_value > max_axis ) {
+					if (axis_pt_cmp(axis_value, max_axis) == 1) {
 						g->vert_span.max = v_iter;
-						max_axis  = axis_value;
+						copy_v2_v2(max_axis, axis_value);
 					}
 				}
 			} while ((edge_links = edge_links->next));
 
-			g->vert_span.min_axis = min_axis;
+			copy_v2_v2(g->vert_span.min_axis, min_axis);
+			copy_v2_v2(g->vert_span.max_axis, max_axis);
 
 			g->has_prev_edge = false;
 
@@ -1449,8 +1474,10 @@ bool BM_face_split_edgenet_connect_islands(
 
 	bm->elem_index_dirty |= BM_VERT;
 
-	/* Now create bvh tree*/
-	BVHTree *bvhtree = BLI_bvhtree_new(edge_arr_len, 0.0f, 8, 8);
+	/* Now create bvh tree
+	 *
+	 * Note that a large epsilon is used because meshes with dimensions of around 100+ need it. see T52329. */
+	BVHTree *bvhtree = BLI_bvhtree_new(edge_arr_len, 1e-4f, 8, 8);
 	for (uint i = 0; i < edge_arr_len; i++) {
 		const float e_cos[2][3] = {
 		    {UNPACK2(edge_arr[i]->v1->co), 0.0f},
diff --git a/source/blender/bmesh/intern/bmesh_private.h b/source/blender/bmesh/intern/bmesh_private.h
index 4161fbe90fb..4dcf97e3f35 100644
--- a/source/blender/bmesh/intern/bmesh_private.h
+++ b/source/blender/bmesh/intern/bmesh_private.h
@@ -44,13 +44,14 @@
 #  define BM_CHECK_ELEMENT(el)  (void)(el)
 #else
 int bmesh_elem_check(void *element, const char htype);
-#  define BM_CHECK_ELEMENT(el)                                                \
+#  define BM_CHECK_ELEMENT(el) {                                              \
 	if (bmesh_elem_check(el, ((BMHeader *)el)->htype)) {                      \
 	    printf("check_element failure, with code %i on line %i in file\n"     \
 	    "    \"%s\"\n\n",                                                     \
 	    bmesh_elem_check(el, ((BMHeader *)el)->htype),                        \
 	    __LINE__, __FILE__);                                                  \
-	} (void)0
+	} \
+} ((void)0)
 #endif
 
 int bmesh_radial_length(const BMLoop *l);
diff --git a/source/blender/bmesh/intern/bmesh_queries.c b/source/blender/bmesh/intern/bmesh_queries.c
index 668fb998254..5bdc3927e16 100644
--- a/source/blender/bmesh/intern/bmesh_queries.c
+++ b/source/blender/bmesh/intern/bmesh_queries.c
@@ -36,7 +36,7 @@
 #include "BLI_math.h"
 #include "BLI_alloca.h"
 #include "BLI_linklist.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 
 #include "BKE_customdata.h"
 
@@ -754,6 +754,22 @@ bool BM_vert_is_edge_pair(const BMVert *v)
 }
 
 /**
+ * Fast alternative to ``(BM_vert_edge_count(v) == 2)``
+ * that checks both edges connect to the same faces.
+ */
+bool BM_vert_is_edge_pair_manifold(const BMVert *v)
+{
+	const BMEdge *e = v->e;
+	if (e) {
+		BMEdge *e_other = BM_DISK_EDGE_NEXT(e, v);
+		if (((e_other != e) && (BM_DISK_EDGE_NEXT(e_other, v) == e))) {
+			return BM_edge_is_manifold(e) && BM_edge_is_manifold(e_other);
+		}
+	}
+	return false;
+}
+
+/**
  * Access a verts 2 connected edges.
  *
  * \return true when only 2 verts are found.
diff --git a/source/blender/bmesh/intern/bmesh_queries.h b/source/blender/bmesh/intern/bmesh_queries.h
index 83977fa8be0..c9fce96c798 100644
--- a/source/blender/bmesh/intern/bmesh_queries.h
+++ b/source/blender/bmesh/intern/bmesh_queries.h
@@ -85,6 +85,7 @@ int     BM_vert_face_count(const BMVert *v) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL
 BMEdge *BM_vert_other_disk_edge(BMVert *v, BMEdge *e) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
 
 bool    BM_vert_is_edge_pair(const BMVert *v) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
+bool    BM_vert_is_edge_pair_manifold(const BMVert *v) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
 bool    BM_vert_edge_pair(BMVert *v, BMEdge **r_e_a, BMEdge **r_e_b);
 bool    BM_vert_face_check(const BMVert *v) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
 bool    BM_vert_is_wire(const BMVert *v) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
diff --git a/source/blender/bmesh/operators/bmo_bisect_plane.c b/source/blender/bmesh/operators/bmo_bisect_plane.c
index 2c80ff651b8..ed232e81b82 100644
--- a/source/blender/bmesh/operators/bmo_bisect_plane.c
+++ b/source/blender/bmesh/operators/bmo_bisect_plane.c
@@ -29,7 +29,7 @@
 #include "MEM_guardedalloc.h"
 
 #include "BLI_utildefines.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 #include "BLI_math.h"
 
 #include "bmesh.h"
diff --git a/source/blender/bmesh/operators/bmo_connect.c b/source/blender/bmesh/operators/bmo_connect.c
index c5c4ac959a9..0b5f1bb9ca1 100644
--- a/source/blender/bmesh/operators/bmo_connect.c
+++ b/source/blender/bmesh/operators/bmo_connect.c
@@ -27,7 +27,7 @@
  */
 
 #include "BLI_utildefines.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 #include "BLI_alloca.h"
 #include "BLI_linklist_stack.h"
 
diff --git a/source/blender/bmesh/operators/bmo_offset_edgeloops.c b/source/blender/bmesh/operators/bmo_offset_edgeloops.c
index a9840a72fc9..269f933f27f 100644
--- a/source/blender/bmesh/operators/bmo_offset_edgeloops.c
+++ b/source/blender/bmesh/operators/bmo_offset_edgeloops.c
@@ -33,7 +33,7 @@
 
 #include "BLI_math.h"
 #include "BLI_alloca.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 
 #include "BKE_customdata.h"
 
diff --git a/source/blender/bmesh/operators/bmo_primitive.c b/source/blender/bmesh/operators/bmo_primitive.c
index cca0f7387cd..d8f83d786b4 100644
--- a/source/blender/bmesh/operators/bmo_primitive.c
+++ b/source/blender/bmesh/operators/bmo_primitive.c
@@ -839,7 +839,7 @@ void BM_mesh_calc_uvs_grid(
 	const float dx = 1.0f / (float)(x_segments - 1);
 	const float dy = 1.0f / (float)(y_segments - 1);
 	float x = 0.0f;
-	float y = 0.0f;
+	float y = dy;
 
 	int loop_index;
 
@@ -854,16 +854,16 @@ void BM_mesh_calc_uvs_grid(
 
 			switch (loop_index) {
 				case 0:
-					x += dx;
+					y -= dy;
 					break;
 				case 1:
-					y += dy;
+					x += dx;
 					break;
 				case 2:
-					x -= dx;
+					y += dy;
 					break;
 				case 3:
-					y -= dy;
+					x -= dx;
 					break;
 				default:
 					break;
diff --git a/source/blender/bmesh/operators/bmo_removedoubles.c b/source/blender/bmesh/operators/bmo_removedoubles.c
index 7d19d90807a..e85751531ae 100644
--- a/source/blender/bmesh/operators/bmo_removedoubles.c
+++ b/source/blender/bmesh/operators/bmo_removedoubles.c
@@ -30,7 +30,8 @@
 
 #include "BLI_math.h"
 #include "BLI_alloca.h"
-#include "BLI_stackdefines.h"
+#include "BLI_kdtree.h"
+#include "BLI_utildefines_stack.h"
 #include "BLI_stack.h"
 
 #include "BKE_customdata.h"
@@ -277,22 +278,7 @@ void bmo_weld_verts_exec(BMesh *bm, BMOperator *op)
 	BMO_mesh_delete_oflag_context(bm, ELE_DEL, DEL_ONLYTAGGED);
 }
 
-static int vergaverco(const void *e1, const void *e2)
-{
-	const BMVert *v1 = *(const void **)e1, *v2 = *(const void **)e2;
-	float x1 = v1->co[0] + v1->co[1] + v1->co[2];
-	float x2 = v2->co[0] + v2->co[1] + v2->co[2];
-
-	if      (x1 > x2) return  1;
-	else if (x1 < x2) return -1;
-	else return 0;
-}
-
-// #define VERT_TESTED	1 // UNUSED
-#define VERT_DOUBLE	2
-#define VERT_TARGET	4
 #define VERT_KEEP	8
-// #define VERT_MARK	16 // UNUSED
 #define VERT_IN		32
 
 #define EDGE_MARK	1
@@ -584,77 +570,62 @@ static void bmesh_find_doubles_common(
         BMesh *bm, BMOperator *op,
         BMOperator *optarget, BMOpSlot *optarget_slot)
 {
-	BMVert  **verts;
-	int       verts_len;
+	const BMOpSlot *slot_verts = BMO_slot_get(op->slots_in, "verts");
+	BMVert * const *verts = (BMVert **)slot_verts->data.buf;
+	const int       verts_len = slot_verts->len;
 
-	int i, j, keepvert = 0;
+	bool has_keep_vert = false;
+	bool found_duplicates = false;
 
 	const float dist  = BMO_slot_float_get(op->slots_in, "dist");
-	const float dist_sq = dist * dist;
-	const float dist3 = ((float)M_SQRT3 + 0.00005f) * dist;   /* Just above sqrt(3) */
 
 	/* Test whether keep_verts arg exists and is non-empty */
 	if (BMO_slot_exists(op->slots_in, "keep_verts")) {
 		BMOIter oiter;
-		keepvert = BMO_iter_new(&oiter, op->slots_in, "keep_verts", BM_VERT) != NULL;
+		has_keep_vert = BMO_iter_new(&oiter, op->slots_in, "keep_verts", BM_VERT) != NULL;
 	}
 
-	/* get the verts as an array we can sort */
-	verts = BMO_slot_as_arrayN(op->slots_in, "verts", &verts_len);
-
-	/* sort by vertex coordinates added together */
-	qsort(verts, verts_len, sizeof(BMVert *), vergaverco);
-
 	/* Flag keep_verts */
-	if (keepvert) {
+	if (has_keep_vert) {
 		BMO_slot_buffer_flag_enable(bm, op->slots_in, "keep_verts", BM_VERT, VERT_KEEP);
 	}
 
-	for (i = 0; i < verts_len; i++) {
-		BMVert *v_check = verts[i];
-
-		if (BMO_vert_flag_test(bm, v_check, VERT_DOUBLE | VERT_TARGET)) {
-			continue;
+	int *duplicates = MEM_mallocN(sizeof(int) * verts_len, __func__);
+	{
+		KDTree *tree = BLI_kdtree_new(verts_len);
+		for (int i = 0; i < verts_len; i++) {
+			BLI_kdtree_insert(tree, i, verts[i]->co);
+			if (has_keep_vert && BMO_vert_flag_test(bm, verts[i], VERT_KEEP)) {
+				duplicates[i] = i;
+			}
+			else {
+				duplicates[i] = -1;
+			}
 		}
 
-		for (j = i + 1; j < verts_len; j++) {
-			BMVert *v_other = verts[j];
-
-			/* a match has already been found, (we could check which is best, for now don't) */
-			if (BMO_vert_flag_test(bm, v_other, VERT_DOUBLE | VERT_TARGET)) {
-				continue;
-			}
+		BLI_kdtree_balance(tree);
+		found_duplicates = BLI_kdtree_calc_duplicates_fast(tree, dist, false, duplicates) != 0;
+		BLI_kdtree_free(tree);
+	}
 
-			/* Compare sort values of the verts using 3x tolerance (allowing for the tolerance
-			 * on each of the three axes). This avoids the more expensive length comparison
-			 * for most vertex pairs. */
-			if ((v_other->co[0] + v_other->co[1] + v_other->co[2]) -
-			    (v_check->co[0] + v_check->co[1] + v_check->co[2]) > dist3)
-			{
-				break;
+	if (found_duplicates) {
+		for (int i = 0; i < verts_len; i++) {
+			BMVert *v_check = verts[i];
+			if (duplicates[i] == -1) {
+				/* nop (others can use as target) */
 			}
-
-			if (keepvert) {
-				if (BMO_vert_flag_test(bm, v_other, VERT_KEEP) == BMO_vert_flag_test(bm, v_check, VERT_KEEP))
-					continue;
+			else if (duplicates[i] == i) {
+				/* keep (others can use as target) */
 			}
-
-			if (compare_len_squared_v3v3(v_check->co, v_other->co, dist_sq)) {
-
-				/* If one vert is marked as keep, make sure it will be the target */
-				if (BMO_vert_flag_test(bm, v_other, VERT_KEEP)) {
-					SWAP(BMVert *, v_check, v_other);
-				}
-
-				BMO_vert_flag_enable(bm, v_other, VERT_DOUBLE);
-				BMO_vert_flag_enable(bm, v_check, VERT_TARGET);
-
-				BMO_slot_map_elem_insert(optarget, optarget_slot, v_other, v_check);
+			else {
+				BMVert *v_other = verts[duplicates[i]];
+				BLI_assert(ELEM(duplicates[duplicates[i]], -1, duplicates[i]));
+				BMO_slot_map_elem_insert(optarget, optarget_slot, v_check, v_other);
 			}
 		}
 	}
 
-	MEM_freeN(verts);
+	MEM_freeN(duplicates);
 }
 
 void bmo_remove_doubles_exec(BMesh *bm, BMOperator *op)
diff --git a/source/blender/bmesh/operators/bmo_subdivide_edgering.c b/source/blender/bmesh/operators/bmo_subdivide_edgering.c
index 94b60a51f68..adcc0c71629 100644
--- a/source/blender/bmesh/operators/bmo_subdivide_edgering.c
+++ b/source/blender/bmesh/operators/bmo_subdivide_edgering.c
@@ -40,7 +40,7 @@
 #include "MEM_guardedalloc.h"
 
 #include "BLI_utildefines.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 #include "BLI_alloca.h"
 #include "BLI_math.h"
 #include "BLI_listbase.h"
diff --git a/source/blender/bmesh/tools/bmesh_beautify.c b/source/blender/bmesh/tools/bmesh_beautify.c
index f08f21a2c88..6e6242fc9f9 100644
--- a/source/blender/bmesh/tools/bmesh_beautify.c
+++ b/source/blender/bmesh/tools/bmesh_beautify.c
@@ -150,7 +150,7 @@ static float bm_edge_calc_rotate_beauty__area(
 			           (ELEM(v4, v1, v2, v3) == false));
 
 			add_v3_v3v3(no, no_a, no_b);
-			if (UNLIKELY((no_scale = normalize_v3(no)) <= FLT_EPSILON)) {
+			if (UNLIKELY((no_scale = normalize_v3(no)) == 0.0f)) {
 				break;
 			}
 
@@ -182,7 +182,12 @@ static float bm_edge_calc_rotate_beauty__area(
 			}
 		}
 
-		return BLI_polyfill_beautify_quad_rotate_calc(v1_xy, v2_xy, v3_xy, v4_xy);
+		/**
+		 * Important to lock degenerate here,
+		 * since the triangle pars will be projected into different 2D spaces.
+		 * Allowing to rotate out of a degenerate state can flip the faces (when performed iteratively).
+		 */
+		return BLI_polyfill_beautify_quad_rotate_calc_ex(v1_xy, v2_xy, v3_xy, v4_xy, true);
 	} while (false);
 
 	return FLT_MAX;
diff --git a/source/blender/bmesh/tools/bmesh_bevel.c b/source/blender/bmesh/tools/bmesh_bevel.c
index 6673c5d25cf..51a0fa4b2cc 100644
--- a/source/blender/bmesh/tools/bmesh_bevel.c
+++ b/source/blender/bmesh/tools/bmesh_bevel.c
@@ -234,7 +234,7 @@ static bool nearly_parallel(const float d1[3], const float d2[3])
 	float ang;
 
 	ang = angle_v3v3(d1, d2);
-	return (fabsf(ang) < BEVEL_EPSILON_ANG) || (fabsf(ang - M_PI) < BEVEL_EPSILON_ANG);
+	return (fabsf(ang) < BEVEL_EPSILON_ANG) || (fabsf(ang - (float)M_PI) < BEVEL_EPSILON_ANG);
 }
 
 /* Make a new BoundVert of the given kind, insert it at the end of the circular linked
@@ -4531,53 +4531,198 @@ static void set_profile_spacing(BevelParams *bp)
 }
 
 /*
- * Calculate and return an offset that is the lesser of the current
+ * Assume we have a situation like:
+ *
+ * a                 d
+ *  \               /
+ * A \             / C
+ *    \ th1    th2/
+ *     b---------c
+ *          B
+ *
+ * where edges are A, B, and C,
+ * following a face around vertices a, b, c, d;
+ * th1 is angle abc and th2 is angle bcd;
+ * and the argument EdgeHalf eb is B, going from b to c.
+ * In general case, edge offset specs for A, B, C have
+ * the form ka*t, kb*t, kc*t where ka, kb, kc are some factors
+ * (may be 0) and t is the current bp->offset.
+ * We want to calculate t at which the clone of B parallel
+ * to it collapses. This can be calculated using trig.
+ * Another case of geometry collision that can happen is
+ * When B slides along A because A is unbeveled.
+ * Then it might collide with a.  Similarly for B sliding along C.
+ */
+static float geometry_collide_offset(BevelParams *bp, EdgeHalf *eb)
+{
+	EdgeHalf *ea, *ec, *ebother;
+	BevVert *bvc;
+	BMLoop *lb;
+	BMVert *va, *vb, *vc, *vd;
+	float ka, kb, kc, g, h, t, den, no_collide_offset, th1, th2, sin1, sin2, tan1, tan2, limit;
+
+	limit = no_collide_offset = bp->offset + 1e6;
+	if (bp->offset == 0.0f)
+		return no_collide_offset;
+	kb = eb->offset_l_spec;
+	ea = eb->next;  /* note: this is in direction b --> a */
+	ka = ea->offset_r_spec;
+	if (eb->is_rev) {
+		vc = eb->e->v1;
+		vb = eb->e->v2;
+	}
+	else {
+		vb = eb->e->v1;
+		vc = eb->e->v2;
+	}
+	va = ea->is_rev ? ea->e->v1 : ea->e->v2;
+	bvc = NULL;
+	ebother = find_other_end_edge_half(bp, eb, &bvc);
+	if (ebother != NULL) {
+		ec = ebother->prev;  /* note: this is in direction c --> d*/
+		vc = bvc->v;
+		kc = ec->offset_l_spec;
+		vd = ec->is_rev ? ec->e->v1 : ec->e->v2;
+	}
+	else {
+		/* No bevvert for w, so C can't be beveled */
+		kc = 0.0f;
+		ec = NULL;
+		/* Find an edge from c that has same face */
+		lb = BM_face_edge_share_loop(eb->fnext, eb->e);
+		if (!lb) {
+			return no_collide_offset;
+		}
+		if (lb->next->v == vc)
+			vd = lb->next->next->v;
+		else if (lb->v == vc)
+			vd = lb->prev->v;
+		else {
+			return no_collide_offset;
+		}
+	}
+	if (ea->e == eb->e || (ec && ec->e == eb->e))
+		return no_collide_offset;
+	ka = ka / bp->offset;
+	kb = kb / bp->offset;
+	kc = kc / bp->offset;
+	th1 = angle_v3v3v3(va->co, vb->co, vc->co);
+	th2 = angle_v3v3v3(vb->co, vc->co, vd->co);
+	
+	/* First calculate offset at which edge B collapses, which happens
+	 * when advancing clones of A, B, C all meet at a point.
+	 * This only happens if at least two of those three edges have non-zero k's */
+	sin1 = sinf(th1);
+	sin2 = sinf(th2);
+	if ((ka > 0.0f) + (kb > 0.0f) + (kc > 0.0f) >= 2) {
+		tan1 = tanf(th1);
+		tan2 = tanf(th2);
+		g = tan1 * tan2;
+		h = sin1 * sin2;
+		den = g * (ka * sin2 + kc * sin1) + kb * h * (tan1 + tan2);
+		if (den != 0.0f) {
+			t = BM_edge_calc_length(eb->e);
+			t *= g * h / den;
+			if (t >= 0.0f)
+				limit = t;
+		}
+	}
+
+	/* Now check edge slide cases */
+	if (kb > 0.0f && ka == 0.0f /*&& bvb->selcount == 1 && bvb->edgecount > 2*/) {
+		t = BM_edge_calc_length(ea->e);
+		t *= sin1 / kb;
+		if (t >= 0.0f && t < limit)
+			limit = t;
+	}
+	if (kb > 0.0f && kc == 0.0f /* && bvc && ec && bvc->selcount == 1 && bvc->edgecount > 2 */) {
+		t = BM_edge_calc_length(ec->e);
+		t *= sin2 / kb;
+		if (t >= 0.0f && t < limit)
+			limit = t;
+	}
+	return limit;
+}
+
+/*
+ * We have an edge A between vertices a and b,
+ * where EdgeHalf ea is the half of A that starts at a.
+ * For vertex-only bevels, the new vertices slide from a at a rate ka*t
+ * and from b at a rate kb*t.
+ * We want to calculate the t at which the two meet.
+ */
+static float vertex_collide_offset(BevelParams *bp, EdgeHalf *ea)
+{
+	float limit, ka, kb, no_collide_offset, la, kab;
+	EdgeHalf *eb;
+
+	limit = no_collide_offset = bp->offset + 1e6;
+	if (bp->offset == 0.0f)
+		return no_collide_offset;
+	ka = ea->offset_l_spec / bp->offset;
+	eb = find_other_end_edge_half(bp, ea, NULL);
+	kb = eb ? eb->offset_l_spec / bp->offset : 0.0f;
+	kab = ka + kb;
+	la = BM_edge_calc_length(ea->e);
+	if (kab <= 0.0f)
+		return no_collide_offset;
+	limit = la / kab;
+	return limit;
+}
+
+/*
+ * Calculate an offset that is the lesser of the current
  * bp.offset and the maximum possible offset before geometry
  * collisions happen.
- * Currently this is a quick and dirty estimate of the max
- * possible: half the minimum edge length of any vertex involved
- * in a bevel. This is usually conservative.
- * The correct calculation is quite complicated.
- * TODO: implement this correctly.
+ * If the offset changes as a result of this, adjust the
+ * current edge offset specs to reflect this clamping,
+ * and store the new offset in bp.offset.
  */
-static float bevel_limit_offset(BMesh *bm, BevelParams *bp)
+static void bevel_limit_offset(BevelParams *bp)
 {
-	BMVert *v;
-	BMEdge *e;
-	BMIter v_iter, e_iter;
-	float limited_offset, half_elen;
-	bool vbeveled;
+	BevVert *bv;
+	EdgeHalf *eh;
+	GHashIterator giter;
+	float limited_offset, offset_factor, collision_offset;
+	int i;
 
 	limited_offset = bp->offset;
-	if (bp->offset_type == BEVEL_AMT_PERCENT) {
-		if (limited_offset > 50.0f)
-			limited_offset = 50.0f;
-		return limited_offset;
-	}
-	BM_ITER_MESH (v, &v_iter, bm, BM_VERTS_OF_MESH) {
-		if (BM_elem_flag_test(v, BM_ELEM_TAG)) {
+	GHASH_ITER(giter, bp->vert_hash) {
+		bv = BLI_ghashIterator_getValue(&giter);
+		for (i = 0; i < bv->edgecount; i++) {
+			eh = &bv->edges[i];
 			if (bp->vertex_only) {
-				vbeveled = true;
+				collision_offset = vertex_collide_offset(bp, eh);
+				if (collision_offset < limited_offset)
+					limited_offset = collision_offset;
 			}
 			else {
-				vbeveled = false;
-				BM_ITER_ELEM (e, &e_iter, v, BM_EDGES_OF_VERT) {
-					if (BM_elem_flag_test(BM_edge_other_vert(e, v), BM_ELEM_TAG)) {
-						vbeveled = true;
-						break;
-					}
-				}
+				collision_offset = geometry_collide_offset(bp, eh);
+				if (collision_offset < limited_offset)
+					limited_offset = collision_offset;
 			}
-			if (vbeveled) {
-				BM_ITER_ELEM (e, &e_iter, v, BM_EDGES_OF_VERT) {
-					half_elen = 0.5f * BM_edge_calc_length(e);
-					if (half_elen < limited_offset)
-						limited_offset = half_elen;
-				}
+		}
+	}
+
+	if (limited_offset < bp->offset) {
+		/* All current offset specs have some number times bp->offset,
+		 * so we can just multiply them all by the reduction factor
+		 * of the offset to have the effect of recalculating the specs
+		 * with the new limited_offset.
+		*/
+		offset_factor = limited_offset / bp->offset;
+		GHASH_ITER(giter, bp->vert_hash) {
+			bv = BLI_ghashIterator_getValue(&giter);
+			for (i = 0; i < bv->edgecount; i++) {
+				eh = &bv->edges[i];
+				eh->offset_l_spec *= offset_factor;
+				eh->offset_r_spec *= offset_factor;
+				eh->offset_l *= offset_factor;
+				eh->offset_r *= offset_factor;
 			}
 		}
+		bp->offset = limited_offset;
 	}
-	return limited_offset;
 }
 
 /**
@@ -4604,6 +4749,7 @@ void BM_mesh_bevel(
 	BMEdge *e;
 	BevVert *bv;
 	BevelParams bp = {NULL};
+	GHashIterator giter;
 
 	bp.offset = offset;
 	bp.offset_type = offset_type;
@@ -4627,24 +4773,33 @@ void BM_mesh_bevel(
 		BLI_memarena_use_calloc(bp.mem_arena);
 		set_profile_spacing(&bp);
 
-		if (limit_offset)
-			bp.offset = bevel_limit_offset(bm, &bp);
-
 		/* Analyze input vertices, sorting edges and assigning initial new vertex positions */
 		BM_ITER_MESH (v, &iter, bm, BM_VERTS_OF_MESH) {
 			if (BM_elem_flag_test(v, BM_ELEM_TAG)) {
 				bv = bevel_vert_construct(bm, &bp, v);
-				if (bv)
+				if (!limit_offset && bv)
 					build_boundary(&bp, bv, true);
 			}
 		}
 
+		/* Perhaps clamp offset to avoid geometry colliisions */
+		if (limit_offset) {
+			bevel_limit_offset(&bp);
+
+			/* Assign initial new vertex positions */
+			GHASH_ITER(giter, bp.vert_hash) {
+				bv = BLI_ghashIterator_getValue(&giter);
+				build_boundary(&bp, bv, true);
+			}
+		}
+
 		/* Perhaps do a pass to try to even out widths */
 		if (!bp.vertex_only) {
 			adjust_offsets(&bp);
 		}
 
 		/* Build the meshes around vertices, now that positions are final */
+		/* Note: could use GHASH_ITER over bp.vert_hash when backward compatibility no longer matters */
 		BM_ITER_MESH (v, &iter, bm, BM_VERTS_OF_MESH) {
 			if (BM_elem_flag_test(v, BM_ELEM_TAG)) {
 				bv = find_bevvert(&bp, v);
diff --git a/source/blender/bmesh/tools/bmesh_bisect_plane.c b/source/blender/bmesh/tools/bmesh_bisect_plane.c
index 676a8de94c8..f3927a3ff67 100644
--- a/source/blender/bmesh/tools/bmesh_bisect_plane.c
+++ b/source/blender/bmesh/tools/bmesh_bisect_plane.c
@@ -38,7 +38,7 @@
 #include "MEM_guardedalloc.h"
 
 #include "BLI_utildefines.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 #include "BLI_alloca.h"
 #include "BLI_linklist.h"
 #include "BLI_linklist_stack.h"
diff --git a/source/blender/bmesh/tools/bmesh_decimate_collapse.c b/source/blender/bmesh/tools/bmesh_decimate_collapse.c
index c417131d588..36ae7231f94 100644
--- a/source/blender/bmesh/tools/bmesh_decimate_collapse.c
+++ b/source/blender/bmesh/tools/bmesh_decimate_collapse.c
@@ -40,7 +40,7 @@
 #include "BLI_edgehash.h"
 #include "BLI_polyfill2d.h"
 #include "BLI_polyfill2d_beautify.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 
 
 #include "BKE_customdata.h"
diff --git a/source/blender/bmesh/tools/bmesh_intersect.c b/source/blender/bmesh/tools/bmesh_intersect.c
index b9408492cc1..9d1b20cb4d2 100644
--- a/source/blender/bmesh/tools/bmesh_intersect.c
+++ b/source/blender/bmesh/tools/bmesh_intersect.c
@@ -44,7 +44,7 @@
 #include "BLI_sort_utils.h"
 
 #include "BLI_linklist_stack.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 #ifndef NDEBUG
 #  include "BLI_array_utils.h"
 #endif
diff --git a/source/blender/bmesh/tools/bmesh_path.c b/source/blender/bmesh/tools/bmesh_path.c
index 30b083cacda..85c591b6684 100644
--- a/source/blender/bmesh/tools/bmesh_path.c
+++ b/source/blender/bmesh/tools/bmesh_path.c
@@ -38,24 +38,34 @@
 /* -------------------------------------------------------------------- */
 /* Generic Helpers */
 
-static float step_cost_3_v3(const float v1[3], const float v2[3], const float v3[3])
+/**
+ * Use skip options when we want to start measuring from a boundary.
+ */
+static float step_cost_3_v3_ex(
+        const float v1[3], const float v2[3], const float v3[3],
+        bool skip_12, bool skip_23)
 {
-	float cost, d1[3], d2[3];
-
+	float d1[3], d2[3];
 
 	/* The cost is based on the simple sum of the length of the two edgees... */
 	sub_v3_v3v3(d1, v2, v1);
 	sub_v3_v3v3(d2, v3, v2);
-	cost = normalize_v3(d1) + normalize_v3(d2);
+	const float cost_12 = normalize_v3(d1);
+	const float cost_23 = normalize_v3(d2);
+	const float cost = ((skip_12 ? 0.0f : cost_12) +
+	                    (skip_23 ? 0.0f : cost_23));
 
 	/* but is biased to give higher values to sharp turns, so that it will take
 	 * paths with fewer "turns" when selecting between equal-weighted paths between
 	 * the two edges */
-	cost = cost * (1.0f + 0.5f * (2.0f - sqrtf(fabsf(dot_v3v3(d1, d2)))));
-
-	return cost;
+	return cost * (1.0f + 0.5f * (2.0f - sqrtf(fabsf(dot_v3v3(d1, d2)))));
 }
 
+static float step_cost_3_v3(
+        const float v1[3], const float v2[3], const float v3[3])
+{
+	return step_cost_3_v3_ex(v1, v2, v3, false, false);
+}
 
 
 /* -------------------------------------------------------------------- */
@@ -364,7 +374,7 @@ LinkNode *BM_mesh_calc_path_edge(
 /* -------------------------------------------------------------------- */
 /* BM_mesh_calc_path_face */
 
-static float facetag_cut_cost_edge(BMFace *f_a, BMFace *f_b, BMEdge *e)
+static float facetag_cut_cost_edge(BMFace *f_a, BMFace *f_b, BMEdge *e, const void * const f_endpoints[2])
 {
 	float f_a_cent[3];
 	float f_b_cent[3];
@@ -392,10 +402,12 @@ static float facetag_cut_cost_edge(BMFace *f_a, BMFace *f_b, BMEdge *e)
 	}
 #endif
 
-	return step_cost_3_v3(f_a_cent, e_cent, f_b_cent);
+	return step_cost_3_v3_ex(
+	        f_a_cent, e_cent, f_b_cent,
+	        (f_a == f_endpoints[0]), (f_b == f_endpoints[1]));
 }
 
-static float facetag_cut_cost_vert(BMFace *f_a, BMFace *f_b, BMVert *v)
+static float facetag_cut_cost_vert(BMFace *f_a, BMFace *f_b, BMVert *v, const void * const f_endpoints[2])
 {
 	float f_a_cent[3];
 	float f_b_cent[3];
@@ -403,12 +415,14 @@ static float facetag_cut_cost_vert(BMFace *f_a, BMFace *f_b, BMVert *v)
 	BM_face_calc_center_mean_weighted(f_a, f_a_cent);
 	BM_face_calc_center_mean_weighted(f_b, f_b_cent);
 
-	return step_cost_3_v3(f_a_cent, v->co, f_b_cent);
+	return step_cost_3_v3_ex(
+	        f_a_cent, v->co, f_b_cent,
+	        (f_a == f_endpoints[0]), (f_b == f_endpoints[1]));
 }
 
 static void facetag_add_adjacent(
         Heap *heap, BMFace *f_a, BMFace **faces_prev, float *cost,
-        const struct BMCalcPathParams *params)
+        const void * const f_endpoints[2], const struct BMCalcPathParams *params)
 {
 	const int f_a_index = BM_elem_index_get(f_a);
 
@@ -427,7 +441,7 @@ static void facetag_add_adjacent(
 					/* we know 'f_b' is not visited, check it out! */
 					const int f_b_index = BM_elem_index_get(f_b);
 					const float cost_cut = params->use_topology_distance ?
-					        1.0f : facetag_cut_cost_edge(f_a, f_b, l_iter->e);
+					        1.0f : facetag_cut_cost_edge(f_a, f_b, l_iter->e, f_endpoints);
 					const float cost_new = cost[f_a_index] + cost_cut;
 
 					if (cost[f_b_index] > cost_new) {
@@ -454,7 +468,7 @@ static void facetag_add_adjacent(
 						/* we know 'f_b' is not visited, check it out! */
 						const int f_b_index = BM_elem_index_get(f_b);
 						const float cost_cut = params->use_topology_distance ?
-						        1.0f : facetag_cut_cost_vert(f_a, f_b, l_a->v);
+						        1.0f : facetag_cut_cost_vert(f_a, f_b, l_a->v, f_endpoints);
 						const float cost_new = cost[f_a_index] + cost_cut;
 
 						if (cost[f_b_index] > cost_new) {
@@ -482,6 +496,9 @@ LinkNode *BM_mesh_calc_path_face(
 	BMFace **faces_prev;
 	int i, totface;
 
+	/* Start measuring face path at the face edges, ignoring their centers. */
+	const void * const f_endpoints[2] = {f_src, f_dst};
+
 	/* note, would pass BM_EDGE except we are looping over all faces anyway */
 	// BM_mesh_elem_index_ensure(bm, BM_VERT /* | BM_EDGE */); // NOT NEEDED FOR FACETAG
 
@@ -522,7 +539,7 @@ LinkNode *BM_mesh_calc_path_face(
 
 		if (!BM_elem_flag_test(f, BM_ELEM_TAG)) {
 			BM_elem_flag_enable(f, BM_ELEM_TAG);
-			facetag_add_adjacent(heap, f, faces_prev, cost, params);
+			facetag_add_adjacent(heap, f, faces_prev, cost, f_endpoints, params);
 		}
 	}
 
diff --git a/source/blender/bmesh/tools/bmesh_path_region.c b/source/blender/bmesh/tools/bmesh_path_region.c
index aad1f9c5a49..d23ea537d82 100644
--- a/source/blender/bmesh/tools/bmesh_path_region.c
+++ b/source/blender/bmesh/tools/bmesh_path_region.c
@@ -29,22 +29,32 @@
 
 #include "BLI_math.h"
 #include "BLI_linklist.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 #include "BLI_alloca.h"
 
 #include "bmesh.h"
 #include "bmesh_path_region.h"  /* own include */
 
 
-/* Special handling of vertices with 2 edges
- * (act as if the edge-chain is a single edge). */
+/**
+ * Special handling of vertices with 2 edges
+ * (act as if the edge-chain is a single edge).
+ *
+ * \note Regarding manifold edge stepping: #BM_vert_is_edge_pair_manifold usage.
+ * Logic to skip a chain of vertices is not applied at boundaries because it gives
+ * strange behavior from a user perspective especially with boundary quads, see: T52701
+ *
+ * Restrict walking over a vertex chain to cases where the edges share the same faces.
+ * This is more typical of what a user would consider a vertex chain.
+ */
 #define USE_EDGE_CHAIN
 
 
 #ifdef USE_EDGE_CHAIN
 /**
- * Takes a vertex with 2 edge users and fills in the vertices at each end-point,
- * or nothing if if the edges loop back to its self.
+ * Takes a vertex with 2 edge users and assigns the vertices at each end-point,
+ *
+ * \return Success when \a v_end_pair values are set or false if the edges loop back on themselves.
  */
 static bool bm_vert_pair_ends(BMVert *v_pivot, BMVert *v_end_pair[2])
 {
@@ -53,7 +63,7 @@ static bool bm_vert_pair_ends(BMVert *v_pivot, BMVert *v_end_pair[2])
 	do {
 		BMEdge *e_chain = e;
 		BMVert *v_other = BM_edge_other_vert(e_chain, v_pivot);
-		while (BM_vert_is_edge_pair(v_other)) {
+		while (BM_vert_is_edge_pair_manifold(v_other)) {
 			BMEdge *e_chain_next = BM_DISK_EDGE_NEXT(e_chain, v_other);
 			BLI_assert(BM_DISK_EDGE_NEXT(e_chain_next, v_other) == e_chain);
 			v_other = BM_edge_other_vert(e_chain_next, v_other);
@@ -88,7 +98,7 @@ static bool bm_vert_region_test_chain(BMVert *v, int * const depths[2], const in
 	if (bm_vert_region_test(v, depths, pass)) {
 		return true;
 	}
-	else if (BM_vert_is_edge_pair(v) &&
+	else if (BM_vert_is_edge_pair_manifold(v) &&
 	         bm_vert_pair_ends(v, v_end_pair) &&
 	         bm_vert_region_test(v_end_pair[0], depths, pass) &&
 	         bm_vert_region_test(v_end_pair[1], depths, pass))
@@ -206,7 +216,7 @@ static LinkNode *mesh_calc_path_region_elem(
 			for (int i = 0; i < ele_verts_len[side]; i++) {
 				BMVert *v = ele_verts[side][i];
 				BMVert *v_end_pair[2];
-				if (BM_vert_is_edge_pair(v) && bm_vert_pair_ends(v, v_end_pair)) {
+				if (BM_vert_is_edge_pair_manifold(v) && bm_vert_pair_ends(v, v_end_pair)) {
 					for (int j = 0; j < 2; j++) {
 						const int v_end_index = BM_elem_index_get(v_end_pair[j]);
 						if (depths[side][v_end_index] == -1) {
@@ -239,7 +249,7 @@ static LinkNode *mesh_calc_path_region_elem(
 						/* Walk along the chain, fill in values until we reach a vertex with 3+ edges. */
 						{
 							BMEdge *e_chain = e;
-							while (BM_vert_is_edge_pair(v_b) &&
+							while (BM_vert_is_edge_pair_manifold(v_b) &&
 							       ((depths[side][v_b_index] == -1)))
 							{
 								depths[side][v_b_index] = pass;
@@ -256,7 +266,7 @@ static LinkNode *mesh_calc_path_region_elem(
 						/* Add the other vertex to the stack, to be traversed in the next pass. */
 						if (depths[side][v_b_index] == -1) {
 #ifdef USE_EDGE_CHAIN
-							BLI_assert(!BM_vert_is_edge_pair(v_b));
+							BLI_assert(!BM_vert_is_edge_pair_manifold(v_b));
 #endif
 							BLI_assert(pass == depths[side][BM_elem_index_get(v_a)] + 1);
 							depths[side][v_b_index] = pass;
diff --git a/source/blender/collada/AnimationExporter.cpp b/source/blender/collada/AnimationExporter.cpp
index 3bff20e846b..d4f434d56fd 100644
--- a/source/blender/collada/AnimationExporter.cpp
+++ b/source/blender/collada/AnimationExporter.cpp
@@ -312,12 +312,12 @@ void AnimationExporter::dae_animation(Object *ob, FCurve *fcu, char *transformNa
 	if (ob->type == OB_ARMATURE) {
 		ob_name =  getObjectBoneName(ob, fcu);
 		BLI_snprintf(
-				anim_id,
-				sizeof(anim_id),
-				"%s_%s.%s",
-				(char *)translate_id(ob_name).c_str(),
-				(char *)translate_id(transformName).c_str(),
-				axis_name);
+		        anim_id,
+		        sizeof(anim_id),
+		        "%s_%s.%s",
+		        (char *)translate_id(ob_name).c_str(),
+		        (char *)translate_id(transformName).c_str(),
+		        axis_name);
 	}
 	else {
 		if (ma)
@@ -326,12 +326,12 @@ void AnimationExporter::dae_animation(Object *ob, FCurve *fcu, char *transformNa
 			ob_name = id_name(ob);
 
 		BLI_snprintf(
-				anim_id,
-				sizeof(anim_id),
-				"%s_%s_%s",
-				(char *)translate_id(ob_name).c_str(),
-				(char *)getAnimationPathId(fcu).c_str(),
-				axis_name);
+		        anim_id,
+		        sizeof(anim_id),
+		        "%s_%s_%s",
+		        (char *)translate_id(ob_name).c_str(),
+		        (char *)getAnimationPathId(fcu).c_str(),
+		        axis_name);
 	}
 
 	openAnimation(anim_id, COLLADABU::Utils::EMPTY_STRING);
@@ -530,7 +530,7 @@ void AnimationExporter::dae_baked_animation(std::vector<float> &fra, Object *ob_
 
 	addSampler(sampler);
 
-	std::string target = translate_id(bone_name) + "/transform";
+	std::string target = get_joint_id(bone, ob_arm) + "/transform";
 	addChannel(COLLADABU::URI(empty, sampler_id), target);
 
 	closeAnimation();
diff --git a/source/blender/collada/DocumentExporter.cpp b/source/blender/collada/DocumentExporter.cpp
index 634071bc90f..dcfd062470c 100644
--- a/source/blender/collada/DocumentExporter.cpp
+++ b/source/blender/collada/DocumentExporter.cpp
@@ -305,7 +305,10 @@ int DocumentExporter::exportCurrentScene(Scene *sce)
 	// <library_visual_scenes>
 
 	SceneExporter se(writer, &arm_exporter, this->export_settings);
-
+#if 0
+	/* The following code seems to be an obsolete workaround
+	   Comment out until it proofs correct that we no longer need it.
+	*/
 	if (has_animations && this->export_settings->export_transformation_type == BC_TRANSFORMATION_TYPE_MATRIX) {
 		// channels adressing <matrix> objects is not (yet) supported
 		// So we force usage of <location>, <translation> and <scale>
@@ -317,7 +320,9 @@ int DocumentExporter::exportCurrentScene(Scene *sce)
 	else {
 		se.setExportTransformationType(this->export_settings->export_transformation_type);
 	}
-
+#else
+	se.setExportTransformationType(this->export_settings->export_transformation_type);
+#endif
 	se.exportScene(sce);
 	
 	// <scene>
diff --git a/source/blender/collada/DocumentImporter.cpp b/source/blender/collada/DocumentImporter.cpp
index 435eaa0208a..f7fdfb06a40 100644
--- a/source/blender/collada/DocumentImporter.cpp
+++ b/source/blender/collada/DocumentImporter.cpp
@@ -508,9 +508,9 @@ std::vector<Object *> *DocumentImporter::write_node(COLLADAFW::Node *node, COLLA
 	std::vector<Object *> *root_objects = new std::vector<Object *>();
 
 	fprintf(stderr,
-			"Writing node id='%s', name='%s'\n",
-			id.c_str(),
-			name.c_str());
+	        "Writing node id='%s', name='%s'\n",
+	        id.c_str(),
+	        name.c_str());
 
 	if (is_joint) {
 		if (parent_node == NULL && !is_library_node) {
diff --git a/source/blender/collada/GeometryExporter.cpp b/source/blender/collada/GeometryExporter.cpp
index b8b1ff7fd95..8a9ccbbed51 100644
--- a/source/blender/collada/GeometryExporter.cpp
+++ b/source/blender/collada/GeometryExporter.cpp
@@ -396,7 +396,7 @@ void GeometryExporter::createPolylist(short material_index,
 		ostr << translate_id(material_id);
 		facelist->setMaterial(ostr.str());
 	}
-			
+
 	COLLADASW::InputList &til = facelist->getInputList();
 		
 	// creates <input> in <polylist> for vertices 
@@ -718,12 +718,13 @@ void GeometryExporter::createVertexColorSource(std::string geom_id, Mesh *me)
 
 		source.setArrayId(layer_id + ARRAY_ID_SUFFIX);
 		source.setAccessorCount(me->totloop);
-		source.setAccessorStride(3);
+		source.setAccessorStride(4);
 
 		COLLADASW::SourceBase::ParameterNameList &param = source.getParameterNameList();
 		param.push_back("R");
 		param.push_back("G");
 		param.push_back("B");
+		param.push_back("A");
 
 		source.prepareToAppendValues();
 
@@ -735,7 +736,8 @@ void GeometryExporter::createVertexColorSource(std::string geom_id, Mesh *me)
 				source.appendValues(
 						mlc->r / 255.0f,
 						mlc->g / 255.0f,
-						mlc->b / 255.0f
+						mlc->b / 255.0f,
+						mlc->a / 255.0f
 				);
 			}
 		}
diff --git a/source/blender/compositor/intern/COM_compositor.cpp b/source/blender/compositor/intern/COM_compositor.cpp
index e3dfd69d8ec..40db5efda27 100644
--- a/source/blender/compositor/intern/COM_compositor.cpp
+++ b/source/blender/compositor/intern/COM_compositor.cpp
@@ -64,9 +64,21 @@ void COM_execute(RenderData *rd, Scene *scene, bNodeTree *editingtree, int rende
 	/* Make sure node tree has previews.
 	 * Don't create previews in advance, this is done when adding preview operations.
 	 * Reserved preview size is determined by render output for now.
+	 *
+	 * We fit the aspect into COM_PREVIEW_SIZE x COM_PREVIEW_SIZE image to avoid
+	 * insane preview resolution, which might even overflow preview dimensions.
 	 */
-	float aspect = rd->xsch > 0 ? (float)rd->ysch / (float)rd->xsch : 1.0f;
-	BKE_node_preview_init_tree(editingtree, COM_PREVIEW_SIZE, (int)(COM_PREVIEW_SIZE * aspect), false);
+	const float aspect = rd->xsch > 0 ? (float)rd->ysch / (float)rd->xsch : 1.0f;
+	int preview_width, preview_height;
+	if (aspect < 1.0f) {
+		preview_width = COM_PREVIEW_SIZE;
+		preview_height = (int)(COM_PREVIEW_SIZE * aspect);
+	}
+	else {
+		preview_width = (int)(COM_PREVIEW_SIZE / aspect);
+		preview_height = COM_PREVIEW_SIZE;
+	}
+	BKE_node_preview_init_tree(editingtree, preview_width, preview_height, false);
 
 	/* initialize workscheduler, will check if already done. TODO deinitialize somewhere */
 	bool use_opencl = (editingtree->flag & NTREE_COM_OPENCL) != 0;
diff --git a/source/blender/compositor/nodes/COM_CompositorNode.cpp b/source/blender/compositor/nodes/COM_CompositorNode.cpp
index 9e8b40d8af4..4754f23a167 100644
--- a/source/blender/compositor/nodes/COM_CompositorNode.cpp
+++ b/source/blender/compositor/nodes/COM_CompositorNode.cpp
@@ -41,6 +41,7 @@ void CompositorNode::convertToOperations(NodeConverter &converter, const Composi
 	NodeInput *depthSocket = this->getInputSocket(2);
 
 	CompositorOperation *compositorOperation = new CompositorOperation();
+	compositorOperation->setScene(context.getScene());
 	compositorOperation->setSceneName(context.getScene()->id.name);
 	compositorOperation->setRenderData(context.getRenderData());
 	compositorOperation->setViewName(context.getViewName());
diff --git a/source/blender/compositor/nodes/COM_RenderLayersNode.cpp b/source/blender/compositor/nodes/COM_RenderLayersNode.cpp
index 75128de2d84..2286db81860 100644
--- a/source/blender/compositor/nodes/COM_RenderLayersNode.cpp
+++ b/source/blender/compositor/nodes/COM_RenderLayersNode.cpp
@@ -15,8 +15,8 @@
  * along with this program; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  *
- * Contributor: 
- *		Jeroen Bakker 
+ * Contributor:
+ *		Jeroen Bakker
  *		Monique Dewanchand
  */
 
@@ -25,16 +25,22 @@
 #include "COM_TranslateOperation.h"
 #include "COM_RotateOperation.h"
 #include "COM_ScaleOperation.h"
+#include "COM_SetColorOperation.h"
 #include "COM_SetValueOperation.h"
+#include "COM_SetVectorOperation.h"
 
 RenderLayersNode::RenderLayersNode(bNode *editorNode) : Node(editorNode)
 {
 	/* pass */
 }
 
-void RenderLayersNode::testSocketLink(NodeConverter &converter, const CompositorContext &context,
-                                      NodeOutput *output, RenderLayersProg *operation,
-                                      Scene *scene, int layerId, bool is_preview) const
+void RenderLayersNode::testSocketLink(NodeConverter &converter,
+                                      const CompositorContext &context,
+                                      NodeOutput *output,
+                                      RenderLayersProg *operation,
+                                      Scene *scene,
+                                      int layerId,
+                                      bool is_preview) const
 {
 	operation->setScene(scene);
 	operation->setLayerId(layerId);
@@ -43,45 +49,140 @@ void RenderLayersNode::testSocketLink(NodeConverter &converter, const Compositor
 
 	converter.mapOutputSocket(output, operation->getOutputSocket());
 	converter.addOperation(operation);
-	
+
 	if (is_preview) /* only for image socket */
 		converter.addPreview(operation->getOutputSocket());
 }
 
-void RenderLayersNode::convertToOperations(NodeConverter &converter, const CompositorContext &context) const
+void RenderLayersNode::testRenderLink(NodeConverter &converter,
+                                      const CompositorContext &context,
+                                      Render *re) const
 {
 	Scene *scene = (Scene *)this->getbNode()->id;
-	short layerId = this->getbNode()->custom1;
-	Render *re = (scene) ? RE_GetRender(scene->id.name) : NULL;
-	int numberOfOutputs = this->getNumberOfOutputSockets();
-	
-	if (re) {
-		RenderResult *rr = RE_AcquireResultRead(re);
-		if (rr) {
-			SceneRenderLayer *srl = (SceneRenderLayer *)BLI_findlink(&scene->r.layers, layerId);
-			if (srl) {
-				RenderLayer *rl = RE_GetRenderLayer(rr, srl->name);
-				if (rl) {
-					for (int i = 0; i < numberOfOutputs; i++) {
-						NodeOutput *output = this->getOutputSocket(i);
-						NodeImageLayer *storage = (NodeImageLayer*) output->getbNodeSocket()->storage;
-						RenderPass *rpass = (RenderPass*) BLI_findstring(&rl->passes, storage->pass_name, offsetof(RenderPass, name));
-						if (rpass) {
-							if (STREQ(rpass->name, RE_PASSNAME_COMBINED) && STREQ(output->getbNodeSocket()->name, "Alpha")) {
-								testSocketLink(converter, context, output, new RenderLayersAlphaProg(rpass->name, COM_DT_VALUE, rpass->channels), scene, layerId, false);
-							}
-							else if (STREQ(rpass->name, RE_PASSNAME_Z)) {
-								testSocketLink(converter, context, output, new RenderLayersDepthProg(rpass->name, COM_DT_VALUE, rpass->channels), scene, layerId, false);
-							}
-							else {
-								DataType type = ((rpass->channels == 4)? COM_DT_COLOR : ((rpass->channels == 3)? COM_DT_VECTOR : COM_DT_VALUE));
-								testSocketLink(converter, context, output, new RenderLayersProg(rpass->name, type, rpass->channels), scene, layerId, STREQ(output->getbNodeSocket()->name, "Image"));
-							}
-						}
-					}
-				}
+	const short layerId = this->getbNode()->custom1;
+	RenderResult *rr = RE_AcquireResultRead(re);
+	if (rr == NULL) {
+		missingRenderLink(converter);
+		return;
+	}
+	SceneRenderLayer *srl = (SceneRenderLayer *)BLI_findlink(&scene->r.layers, layerId);
+	if (srl == NULL) {
+		missingRenderLink(converter);
+		return;
+	}
+	RenderLayer *rl = RE_GetRenderLayer(rr, srl->name);
+	if (rl == NULL) {
+		missingRenderLink(converter);
+		return;
+	}
+	const int num_outputs = this->getNumberOfOutputSockets();
+	for (int i = 0; i < num_outputs; i++) {
+		NodeOutput *output = this->getOutputSocket(i);
+		NodeImageLayer *storage = (NodeImageLayer*) output->getbNodeSocket()->storage;
+		RenderPass *rpass = (RenderPass*) BLI_findstring(
+		        &rl->passes,
+		        storage->pass_name,
+		        offsetof(RenderPass, name));
+		if (rpass == NULL) {
+			missingSocketLink(converter, output);
+			continue;
+		}
+		RenderLayersProg *operation;
+		bool is_preview;
+		if (STREQ(rpass->name, RE_PASSNAME_COMBINED) &&
+		    STREQ(output->getbNodeSocket()->name, "Alpha"))
+		{
+			operation = new RenderLayersAlphaProg(rpass->name,
+			                                      COM_DT_VALUE,
+			                                      rpass->channels);
+			is_preview = false;
+		}
+		else if (STREQ(rpass->name, RE_PASSNAME_Z)) {
+			operation = new RenderLayersDepthProg(rpass->name,
+			                                      COM_DT_VALUE,
+			                                      rpass->channels);
+			is_preview = false;
+		}
+		else {
+			DataType type;
+			switch (rpass->channels) {
+				case 4: type = COM_DT_COLOR; break;
+				case 3: type = COM_DT_VECTOR; break;
+				case 1: type = COM_DT_VALUE; break;
+				default:
+					BLI_assert(!"Unexpected number of channels for pass");
+					type = COM_DT_VALUE;
+					break;
 			}
+			operation = new RenderLayersProg(rpass->name,
+			                                 type,
+			                                 rpass->channels);
+			is_preview = STREQ(output->getbNodeSocket()->name, "Image");
+		}
+		testSocketLink(converter,
+		               context,
+		               output,
+		               operation,
+		               scene,
+		               layerId,
+		               is_preview);
+	}
+}
+
+void RenderLayersNode::missingSocketLink(NodeConverter &converter,
+                                         NodeOutput *output) const
+{
+	NodeOperation *operation;
+	switch (output->getDataType()) {
+		case COM_DT_COLOR:
+		{
+			const float color[4] = {0.0f, 0.0f, 0.0f, 0.0f};
+			SetColorOperation *color_operation = new SetColorOperation();
+			color_operation->setChannels(color);
+			operation = color_operation;
+			break;
+		}
+		case COM_DT_VECTOR:
+		{
+			const float vector[3] = {0.0f, 0.0f, 0.0f};
+			SetVectorOperation *vector_operation = new SetVectorOperation();
+			vector_operation->setVector(vector);
+			operation = vector_operation;
+			break;
+		}
+		case COM_DT_VALUE:
+		{
+			SetValueOperation *value_operation = new SetValueOperation();
+			value_operation->setValue(0.0f);
+			operation = value_operation;
+			break;
 		}
+	}
+
+	converter.mapOutputSocket(output, operation->getOutputSocket());
+	converter.addOperation(operation);
+}
+
+void RenderLayersNode::missingRenderLink(NodeConverter &converter) const
+{
+	const int num_outputs = this->getNumberOfOutputSockets();
+	for (int i = 0; i < num_outputs; i++) {
+		NodeOutput *output = this->getOutputSocket(i);
+		missingSocketLink(converter, output);
+	}
+}
+
+void RenderLayersNode::convertToOperations(NodeConverter &converter,
+                                           const CompositorContext &context) const
+{
+	Scene *scene = (Scene *)this->getbNode()->id;
+	Render *re = (scene) ? RE_GetSceneRender(scene) : NULL;
+
+	if (re != NULL) {
+		testRenderLink(converter, context, re);
 		RE_ReleaseResult(re);
 	}
+	else {
+		missingRenderLink(converter);
+	}
 }
diff --git a/source/blender/compositor/nodes/COM_RenderLayersNode.h b/source/blender/compositor/nodes/COM_RenderLayersNode.h
index 1f733a9f4bb..5c6c5e17d1f 100644
--- a/source/blender/compositor/nodes/COM_RenderLayersNode.h
+++ b/source/blender/compositor/nodes/COM_RenderLayersNode.h
@@ -24,6 +24,8 @@
 #include "DNA_node_types.h"
 #include "COM_RenderLayersProg.h"
 
+struct Render;
+
 /**
  * @brief RenderLayersNode
  * @ingroup Node
@@ -31,7 +33,8 @@
 class RenderLayersNode : public Node {
 public:
 	RenderLayersNode(bNode *editorNode);
-	void convertToOperations(NodeConverter &converter, const CompositorContext &context) const;
+	void convertToOperations(NodeConverter &converter,
+	                         const CompositorContext &context) const;
 private:
 	void testSocketLink(NodeConverter &converter,
 	                    const CompositorContext &context,
@@ -40,4 +43,11 @@ private:
 	                    Scene *scene,
 	                    int layerId,
 	                    bool is_preview) const;
+	void testRenderLink(NodeConverter &converter,
+	                    const CompositorContext &context,
+	                    Render *re) const;
+
+	void missingSocketLink(NodeConverter &converter,
+	                       NodeOutput *output) const;
+	void missingRenderLink(NodeConverter &converter) const;
 };
diff --git a/source/blender/compositor/operations/COM_CompositorOperation.cpp b/source/blender/compositor/operations/COM_CompositorOperation.cpp
index 76f74c144f6..15ffff2fc90 100644
--- a/source/blender/compositor/operations/COM_CompositorOperation.cpp
+++ b/source/blender/compositor/operations/COM_CompositorOperation.cpp
@@ -51,6 +51,7 @@ CompositorOperation::CompositorOperation() : NodeOperation()
 	this->m_useAlphaInput = false;
 	this->m_active = false;
 
+	this->m_scene = NULL;
 	this->m_sceneName[0] = '\0';
 	this->m_viewName = NULL;
 }
@@ -78,7 +79,7 @@ void CompositorOperation::deinitExecution()
 		return;
 
 	if (!isBreaked()) {
-		Render *re = RE_GetRender(this->m_sceneName);
+		Render *re = RE_GetSceneRender(this->m_scene);
 		RenderResult *rr = RE_AcquireResultWrite(re);
 
 		if (rr) {
@@ -217,7 +218,7 @@ void CompositorOperation::determineResolution(unsigned int resolution[2], unsign
 
 	// check actual render resolution with cropping it may differ with cropped border.rendering
 	// FIX for: [31777] Border Crop gives black (easy)
-	Render *re = RE_GetRender(this->m_sceneName);
+	Render *re = RE_GetSceneRender(this->m_scene);
 	if (re) {
 		RenderResult *rr = RE_AcquireResultRead(re);
 		if (rr) {
diff --git a/source/blender/compositor/operations/COM_CompositorOperation.h b/source/blender/compositor/operations/COM_CompositorOperation.h
index e81ba520695..269a065a793 100644
--- a/source/blender/compositor/operations/COM_CompositorOperation.h
+++ b/source/blender/compositor/operations/COM_CompositorOperation.h
@@ -26,11 +26,14 @@
 #include "BLI_rect.h"
 #include "BLI_string.h"
 
+struct Scene;
+
 /**
  * @brief Compositor output operation
  */
 class CompositorOperation : public NodeOperation {
 private:
+	const struct Scene *m_scene;
 	/**
 	 * @brief Scene name, used for getting the render output, includes 'SC' prefix.
 	 */
@@ -84,6 +87,7 @@ public:
 	CompositorOperation();
 	const bool isActiveCompositorOutput() const { return this->m_active; }
 	void executeRegion(rcti *rect, unsigned int tileNumber);
+	void setScene(const struct Scene *scene) { m_scene = scene; }
 	void setSceneName(const char *sceneName) { BLI_strncpy(this->m_sceneName, sceneName, sizeof(this->m_sceneName)); }
 	void setViewName(const char *viewName) { this->m_viewName = viewName; }
 	void setRenderData(const RenderData *rd) { this->m_rd = rd; }
diff --git a/source/blender/compositor/operations/COM_GlareSimpleStarOperation.cpp b/source/blender/compositor/operations/COM_GlareSimpleStarOperation.cpp
index 57aa3a1bac2..94f407dad86 100644
--- a/source/blender/compositor/operations/COM_GlareSimpleStarOperation.cpp
+++ b/source/blender/compositor/operations/COM_GlareSimpleStarOperation.cpp
@@ -65,10 +65,10 @@ void GlareSimpleStarOperation::generateGlare(float *data, MemoryBuffer *inputTil
 			}
 		}
 //		// B
-		for (y = tbuf1->getHeight() - 1 && (!breaked); y >= 0; y--) {
+		for (y = this->getHeight() - 1; y >= 0 && (!breaked); y--) {
 			ym = y - i;
 			yp = y + i;
-			for (x = tbuf1->getWidth() - 1; x >= 0; x--) {
+			for (x = this->getWidth() - 1; x >= 0; x--) {
 				xm = x - i;
 				xp = x + i;
 				tbuf1->read(c, x, y);
diff --git a/source/blender/compositor/operations/COM_MovieClipAttributeOperation.cpp b/source/blender/compositor/operations/COM_MovieClipAttributeOperation.cpp
index 41f7da7c49f..0c2da8415f8 100644
--- a/source/blender/compositor/operations/COM_MovieClipAttributeOperation.cpp
+++ b/source/blender/compositor/operations/COM_MovieClipAttributeOperation.cpp
@@ -28,55 +28,58 @@ extern "C" {
 MovieClipAttributeOperation::MovieClipAttributeOperation() : NodeOperation()
 {
 	this->addOutputSocket(COM_DT_VALUE);
-	this->m_valueSet = false;
 	this->m_framenumber = 0;
 	this->m_attribute = MCA_X;
 	this->m_invert = false;
 }
 
-void MovieClipAttributeOperation::executePixelSampled(float output[4],
-                                                      float /*x*/, float /*y*/,
-                                                      PixelSampler /*sampler*/)
+void MovieClipAttributeOperation::initExecution()
 {
-	/* TODO(sergey): This code isn't really thread-safe. */
-	if (!this->m_valueSet) {
-		float loc[2], scale, angle;
-		loc[0] = 0.0f;
-		loc[1] = 0.0f;
-		scale = 1.0f;
-		angle = 0.0f;
-		if (this->m_clip) {
-			int clip_framenr = BKE_movieclip_remap_scene_to_clip_frame(this->m_clip, this->m_framenumber);
-			BKE_tracking_stabilization_data_get(this->m_clip, clip_framenr, getWidth(), getHeight(), loc, &scale, &angle);
-		}
-		switch (this->m_attribute) {
-			case MCA_SCALE:
-				this->m_value = scale;
-				break;
-			case MCA_ANGLE:
-				this->m_value = angle;
-				break;
-			case MCA_X:
-				this->m_value = loc[0];
-				break;
-			case MCA_Y:
-				this->m_value = loc[1];
-				break;
+	float loc[2], scale, angle;
+	loc[0] = 0.0f;
+	loc[1] = 0.0f;
+	scale = 1.0f;
+	angle = 0.0f;
+	int clip_framenr = BKE_movieclip_remap_scene_to_clip_frame(
+	        this->m_clip, this->m_framenumber);
+	BKE_tracking_stabilization_data_get(this->m_clip,
+	                                    clip_framenr,
+	                                    getWidth(), getHeight(),
+	                                    loc, &scale, &angle);
+	switch (this->m_attribute) {
+		case MCA_SCALE:
+			this->m_value = scale;
+			break;
+		case MCA_ANGLE:
+			this->m_value = angle;
+			break;
+		case MCA_X:
+			this->m_value = loc[0];
+			break;
+		case MCA_Y:
+			this->m_value = loc[1];
+			break;
+	}
+	if (this->m_invert) {
+		if (this->m_attribute != MCA_SCALE) {
+			this->m_value = -this->m_value;
 		}
-		if (this->m_invert) {
-			if (this->m_attribute != MCA_SCALE) {
-				this->m_value = -this->m_value;
-			}
-			else {
-				this->m_value = 1.0f / this->m_value;
-			}
+		else {
+			this->m_value = 1.0f / this->m_value;
 		}
-		this->m_valueSet = true;
 	}
+}
+
+void MovieClipAttributeOperation::executePixelSampled(float output[4],
+                                                      float /*x*/, float /*y*/,
+                                                      PixelSampler /*sampler*/)
+{
 	output[0] = this->m_value;
 }
 
-void MovieClipAttributeOperation::determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2])
+void MovieClipAttributeOperation::determineResolution(
+        unsigned int resolution[2],
+        unsigned int preferredResolution[2])
 {
 	resolution[0] = preferredResolution[0];
 	resolution[1] = preferredResolution[1];
diff --git a/source/blender/compositor/operations/COM_MovieClipAttributeOperation.h b/source/blender/compositor/operations/COM_MovieClipAttributeOperation.h
index 731b9debaf0..659f54c1ca2 100644
--- a/source/blender/compositor/operations/COM_MovieClipAttributeOperation.h
+++ b/source/blender/compositor/operations/COM_MovieClipAttributeOperation.h
@@ -39,16 +39,18 @@ class MovieClipAttributeOperation : public NodeOperation {
 private:
 	MovieClip *m_clip;
 	float m_value;
-	bool m_valueSet;
 	int m_framenumber;
 	bool m_invert;
 	MovieClipAttribute m_attribute;
+
 public:
 	/**
 	 * Default constructor
 	 */
 	MovieClipAttributeOperation();
-	
+
+	void initExecution();
+
 	/**
 	 * the inner loop of this program
 	 */
diff --git a/source/blender/compositor/operations/COM_RenderLayersProg.cpp b/source/blender/compositor/operations/COM_RenderLayersProg.cpp
index f2f1b211a97..d1c654ddb6c 100644
--- a/source/blender/compositor/operations/COM_RenderLayersProg.cpp
+++ b/source/blender/compositor/operations/COM_RenderLayersProg.cpp
@@ -48,7 +48,7 @@ RenderLayersProg::RenderLayersProg(const char *passName, DataType type, int elem
 void RenderLayersProg::initExecution()
 {
 	Scene *scene = this->getScene();
-	Render *re = (scene) ? RE_GetRender(scene->id.name) : NULL;
+	Render *re = (scene) ? RE_GetSceneRender(scene) : NULL;
 	RenderResult *rr = NULL;
 	
 	if (re)
@@ -179,7 +179,7 @@ void RenderLayersProg::deinitExecution()
 void RenderLayersProg::determineResolution(unsigned int resolution[2], unsigned int /*preferredResolution*/[2])
 {
 	Scene *sce = this->getScene();
-	Render *re = (sce) ? RE_GetRender(sce->id.name) : NULL;
+	Render *re = (sce) ? RE_GetSceneRender(sce) : NULL;
 	RenderResult *rr = NULL;
 	
 	resolution[0] = 0;
@@ -246,4 +246,4 @@ void RenderLayersDepthProg::executePixelSampled(float output[4], float x, float
 		unsigned int offset = (iy * this->getWidth() + ix);
 		output[0] = inputBuffer[offset];
 	}
-}
\ No newline at end of file
+}
diff --git a/source/blender/compositor/operations/COM_ScaleOperation.cpp b/source/blender/compositor/operations/COM_ScaleOperation.cpp
index 117ae743ee7..46e155e43b5 100644
--- a/source/blender/compositor/operations/COM_ScaleOperation.cpp
+++ b/source/blender/compositor/operations/COM_ScaleOperation.cpp
@@ -271,9 +271,9 @@ bool ScaleFixedSizeOperation::determineDependingAreaOfInterest(rcti *input, Read
 {
 	rcti newInput;
 
-	newInput.xmax = (input->xmax - m_offsetX) * this->m_relX;
+	newInput.xmax = (input->xmax - m_offsetX) * this->m_relX + 1;
 	newInput.xmin = (input->xmin - m_offsetX) * this->m_relX;
-	newInput.ymax = (input->ymax - m_offsetY) * this->m_relY;
+	newInput.ymax = (input->ymax - m_offsetY) * this->m_relY + 1;
 	newInput.ymin = (input->ymin - m_offsetY) * this->m_relY;
 
 	return BaseScaleOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
diff --git a/source/blender/datatoc/datatoc.c b/source/blender/datatoc/datatoc.c
index 4e49a9a7694..ffccca98f99 100644
--- a/source/blender/datatoc/datatoc.c
+++ b/source/blender/datatoc/datatoc.c
@@ -91,6 +91,11 @@ int main(int argc, char **argv)
 	}
 
 	fprintf(fpout, "/* DataToC output of file <%s> */\n\n", argv[1]);
+
+	/* Quiet 'missing-variable-declarations' warning. */
+	fprintf(fpout, "extern int datatoc_%s_size;\n", argv[1]);
+	fprintf(fpout, "extern char datatoc_%s[];\n\n", argv[1]);
+
 	fprintf(fpout, "int datatoc_%s_size = %d;\n", argv[1], (int)size);
 	fprintf(fpout, "char datatoc_%s[] = {\n", argv[1]);
 	while (size--) {
diff --git a/source/blender/depsgraph/DEG_depsgraph.h b/source/blender/depsgraph/DEG_depsgraph.h
index 945a4785b9c..59b10b95d49 100644
--- a/source/blender/depsgraph/DEG_depsgraph.h
+++ b/source/blender/depsgraph/DEG_depsgraph.h
@@ -134,6 +134,9 @@ void DEG_ids_clear_recalc(struct Main *bmain);
 /* Flush updates for all IDs */
 void DEG_ids_flush_tagged(struct Main *bmain);
 
+/* Flush updates for IDs in a single scene. */
+void DEG_scene_flush_update(struct Main *bmain, struct Scene *scene);
+
 /* Check if something was changed in the database and inform
  * editors about this.
  */
diff --git a/source/blender/depsgraph/intern/builder/deg_builder.cc b/source/blender/depsgraph/intern/builder/deg_builder.cc
index 086fd0c1144..e3494e4756e 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder.cc
@@ -69,7 +69,7 @@ static bool check_object_needs_evaluation(Object *object)
 
 void deg_graph_build_flush_layers(Depsgraph *graph)
 {
-	BLI_Stack *stack = BLI_stack_new(sizeof(OperationDepsNode*),
+	BLI_Stack *stack = BLI_stack_new(sizeof(OperationDepsNode *),
 	                                 "DEG flush layers stack");
 	foreach (OperationDepsNode *node, graph->operations) {
 		IDDepsNode *id_node = node->owner->owner;
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc b/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
index 55f1f93be6a..17f0c030bd0 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
@@ -81,6 +81,7 @@ extern "C" {
 #include "BKE_lattice.h"
 #include "BKE_library.h"
 #include "BKE_main.h"
+#include "BKE_mask.h"
 #include "BKE_material.h"
 #include "BKE_mesh.h"
 #include "BKE_mball.h"
@@ -320,8 +321,11 @@ void DepsgraphNodeBuilder::build_object(Scene *scene, Base *base, Object *ob)
 	if (base != NULL) {
 		id_node->layers |= base->lay;
 	}
-	if (ob == scene->camera) {
-		/* Camera should always be updated, it used directly by viewport. */
+	if (ob->type == OB_CAMERA) {
+		/* Camera should always be updated, it used directly by viewport.
+		 *
+		 * TODO(sergey): Make it only for active scene camera.
+		 */
 		id_node->layers |= (unsigned int)(-1);
 	}
 	/* Skip rest of components if the ID node was already there. */
@@ -671,6 +675,13 @@ void DepsgraphNodeBuilder::build_particles(Scene *scene, Object *ob)
 	ComponentDepsNode *psys_comp =
 	        add_component_node(&ob->id, DEG_NODE_TYPE_EVAL_PARTICLES);
 
+	add_operation_node(psys_comp,
+	                   function_bind(BKE_particle_system_eval_init,
+	                                 _1,
+	                                 scene,
+	                                 ob),
+	                   DEG_OPCODE_PSYS_EVAL_INIT);
+
 	/* particle systems */
 	LINKLIST_FOREACH (ParticleSystem *, psys, &ob->particlesystem) {
 		ParticleSettings *part = psys->part;
@@ -682,11 +693,7 @@ void DepsgraphNodeBuilder::build_particles(Scene *scene, Object *ob)
 		/* this particle system */
 		// TODO: for now, this will just be a placeholder "ubereval" node
 		add_operation_node(psys_comp,
-		                   function_bind(BKE_particle_system_eval,
-		                                 _1,
-		                                 scene,
-		                                 ob,
-		                                 psys),
+		                   NULL,
 		                   DEG_OPCODE_PSYS_EVAL,
 		                   psys->name);
 	}
@@ -845,17 +852,6 @@ void DepsgraphNodeBuilder::build_obdata_geom(Scene *scene, Object *ob)
 			                                           "Geometry Eval");
 			op_node->set_as_entry();
 
-			/* Calculate curve path - this is used by constraints, etc. */
-			if (ELEM(ob->type, OB_CURVE, OB_FONT)) {
-				add_operation_node(obdata,
-				                   DEG_NODE_TYPE_GEOMETRY,
-				                   function_bind(BKE_curve_eval_path,
-				                                 _1,
-				                                 (Curve *)obdata),
-				                   DEG_OPCODE_GEOMETRY_PATH,
-				                   "Path");
-			}
-
 			/* Make sure objects used for bevel.taper are in the graph.
 			 * NOTE: This objects might be not linked to the scene.
 			 */
@@ -965,7 +961,7 @@ void DepsgraphNodeBuilder::build_nodetree(bNodeTree *ntree)
 	LINKLIST_FOREACH (bNode *, bnode, &ntree->nodes) {
 		ID *id = bnode->id;
 		if (id != NULL) {
-			short id_type = GS(id->name);
+			ID_Type id_type = GS(id->name);
 			if (id_type == ID_MA) {
 				build_material((Material *)id);
 			}
@@ -1102,7 +1098,18 @@ void DepsgraphNodeBuilder::build_mask(Mask *mask)
 {
 	ID *mask_id = &mask->id;
 	add_id_node(mask_id);
+	/* F-Curve based animation/ */
 	build_animdata(mask_id);
+	/* Animation based on mask's shapes. */
+	add_operation_node(mask_id,
+	                   DEG_NODE_TYPE_ANIMATION,
+	                   function_bind(BKE_mask_eval_animation, _1, mask),
+	                   DEG_OPCODE_MASK_ANIMATION);
+	/* Final mask evaluation. */
+	add_operation_node(mask_id,
+	                   DEG_NODE_TYPE_PARAMETERS,
+	                   function_bind(BKE_mask_eval_update, _1, mask),
+	                   DEG_OPCODE_MASK_EVAL);
 }
 
 void DepsgraphNodeBuilder::build_movieclip(MovieClip *clip) {
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_nodes_rig.cc b/source/blender/depsgraph/intern/builder/deg_builder_nodes_rig.cc
index fe7ccaa7fc0..ceb2fd25f94 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_nodes_rig.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_nodes_rig.cc
@@ -182,6 +182,11 @@ void DepsgraphNodeBuilder::build_rig(Scene *scene, Object *ob)
 
 	op_node = add_operation_node(&ob->id,
 	                             DEG_NODE_TYPE_EVAL_POSE,
+	                             function_bind(BKE_pose_eval_init_ik, _1, scene, ob, ob->pose),
+	                             DEG_OPCODE_POSE_INIT_IK);
+
+	op_node = add_operation_node(&ob->id,
+	                             DEG_NODE_TYPE_EVAL_POSE,
 	                             function_bind(BKE_pose_eval_flush, _1, scene, ob, ob->pose),
 	                             DEG_OPCODE_POSE_DONE);
 	op_node->set_as_exit();
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_nodes_scene.cc b/source/blender/depsgraph/intern/builder/deg_builder_nodes_scene.cc
index 3249867e416..521276bc608 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_nodes_scene.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_nodes_scene.cc
@@ -126,6 +126,13 @@ void DepsgraphNodeBuilder::build_scene(Main *bmain, Scene *scene)
 	LINKLIST_FOREACH (MovieClip *, clip, &bmain->movieclip) {
 		build_movieclip(clip);
 	}
+
+	/* Parameters evaluation for scene relations mainly. */
+	add_operation_node(&scene->id,
+	                   DEG_NODE_TYPE_PARAMETERS,
+	                   NULL,
+	                   DEG_OPCODE_PLACEHOLDER,
+	                   "Scene Eval");
 }
 
 }  // namespace DEG
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
index 62a7d6c6ab7..d42c4047691 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
@@ -661,58 +661,74 @@ void DepsgraphRelationBuilder::build_object_parent(Object *ob)
 	}
 }
 
-void DepsgraphRelationBuilder::build_constraints(Scene *scene, ID *id, eDepsNode_Type component_type, const char *component_subdata,
-                                                 ListBase *constraints, RootPChanMap *root_map)
+void DepsgraphRelationBuilder::build_constraints(Scene *scene, ID *id,
+                                                 eDepsNode_Type component_type,
+                                                 const char *component_subdata,
+                                                 ListBase *constraints,
+                                                 RootPChanMap *root_map)
 {
-	OperationKey constraint_op_key(id, component_type, component_subdata,
-	                               (component_type == DEG_NODE_TYPE_BONE) ? DEG_OPCODE_BONE_CONSTRAINTS : DEG_OPCODE_TRANSFORM_CONSTRAINTS);
-
-	/* add dependencies for each constraint in turn */
+	OperationKey constraint_op_key(
+	        id,
+	        component_type,
+	        component_subdata,
+	        (component_type == DEG_NODE_TYPE_BONE)
+	                ? DEG_OPCODE_BONE_CONSTRAINTS
+	                : DEG_OPCODE_TRANSFORM_CONSTRAINTS);
+	/* Add dependencies for each constraint in turn. */
 	for (bConstraint *con = (bConstraint *)constraints->first; con; con = con->next) {
 		const bConstraintTypeInfo *cti = BKE_constraint_typeinfo_get(con);
-
-		/* invalid constraint type... */
-		if (cti == NULL)
+		/* Invalid constraint type. */
+		if (cti == NULL) {
 			continue;
-
-		/* special case for camera tracking -- it doesn't use targets to define relations */
-		// TODO: we can now represent dependencies in a much richer manner, so review how this is done...
-		if (ELEM(cti->type, CONSTRAINT_TYPE_FOLLOWTRACK, CONSTRAINT_TYPE_CAMERASOLVER, CONSTRAINT_TYPE_OBJECTSOLVER)) {
+		}
+		/* Special case for camera tracking -- it doesn't use targets to
+		 * define relations.
+		 */
+		/* TODO: we can now represent dependencies in a much richer manner,
+		 * so review how this is done.
+		 */
+		if (ELEM(cti->type,
+		         CONSTRAINT_TYPE_FOLLOWTRACK,
+		         CONSTRAINT_TYPE_CAMERASOLVER,
+		         CONSTRAINT_TYPE_OBJECTSOLVER))
+		{
 			bool depends_on_camera = false;
-
 			if (cti->type == CONSTRAINT_TYPE_FOLLOWTRACK) {
 				bFollowTrackConstraint *data = (bFollowTrackConstraint *)con->data;
-
-				if (((data->clip) || (data->flag & FOLLOWTRACK_ACTIVECLIP)) && data->track[0])
+				if (((data->clip) ||
+				     (data->flag & FOLLOWTRACK_ACTIVECLIP)) && data->track[0])
+				{
 					depends_on_camera = true;
-
+				}
 				if (data->depth_ob) {
-					// DAG_RL_DATA_OB | DAG_RL_OB_OB
-					ComponentKey depth_key(&data->depth_ob->id, DEG_NODE_TYPE_TRANSFORM);
-					add_relation(depth_key, constraint_op_key, cti->name);
+					ComponentKey depth_transform_key(&data->depth_ob->id,
+					                                 DEG_NODE_TYPE_TRANSFORM);
+					ComponentKey depth_geometry_key(&data->depth_ob->id,
+					                                DEG_NODE_TYPE_GEOMETRY);
+					add_relation(depth_transform_key, constraint_op_key, cti->name);
+					add_relation(depth_geometry_key, constraint_op_key, cti->name);
 				}
 			}
 			else if (cti->type == CONSTRAINT_TYPE_OBJECTSOLVER) {
 				depends_on_camera = true;
 			}
-
 			if (depends_on_camera && scene->camera) {
-				// DAG_RL_DATA_OB | DAG_RL_OB_OB
 				ComponentKey camera_key(&scene->camera->id, DEG_NODE_TYPE_TRANSFORM);
 				add_relation(camera_key, constraint_op_key, cti->name);
 			}
-
-			/* TODO(sergey): This is more a TimeSource -> MovieClip -> Constraint dependency chain. */
+			/* TODO(sergey): This is more a TimeSource -> MovieClip ->
+			 * Constraint dependency chain.
+			 */
 			TimeSourceKey time_src_key;
 			add_relation(time_src_key, constraint_op_key, "[TimeSrc -> Animation]");
 		}
 		else if (cti->type == CONSTRAINT_TYPE_TRANSFORM_CACHE) {
-			/* TODO(kevin): This is more a TimeSource -> CacheFile -> Constraint dependency chain. */
+			/* TODO(kevin): This is more a TimeSource -> CacheFile -> Constraint
+			 * dependency chain.
+			 */
 			TimeSourceKey time_src_key;
 			add_relation(time_src_key, constraint_op_key, "[TimeSrc -> Animation]");
-
 			bTransformCacheConstraint *data = (bTransformCacheConstraint *)con->data;
-
 			if (data->cache_file) {
 				ComponentKey cache_key(&data->cache_file->id, DEG_NODE_TYPE_CACHE);
 				add_relation(cache_key, constraint_op_key, cti->name);
@@ -721,52 +737,73 @@ void DepsgraphRelationBuilder::build_constraints(Scene *scene, ID *id, eDepsNode
 		else if (cti->get_constraint_targets) {
 			ListBase targets = {NULL, NULL};
 			cti->get_constraint_targets(con, &targets);
-
 			LINKLIST_FOREACH (bConstraintTarget *, ct, &targets) {
 				if (ct->tar == NULL) {
 					continue;
 				}
-
-				if (ELEM(con->type, CONSTRAINT_TYPE_KINEMATIC, CONSTRAINT_TYPE_SPLINEIK)) {
-					/* ignore IK constraints - these are handled separately (on pose level) */
+				if (ELEM(con->type,
+				         CONSTRAINT_TYPE_KINEMATIC,
+				         CONSTRAINT_TYPE_SPLINEIK))
+				{
+					/* Ignore IK constraints - these are handled separately
+					 * (on pose level).
+					 */
 				}
-				else if (ELEM(con->type, CONSTRAINT_TYPE_FOLLOWPATH, CONSTRAINT_TYPE_CLAMPTO)) {
-					/* these constraints require path geometry data... */
+				else if (ELEM(con->type,
+				              CONSTRAINT_TYPE_FOLLOWPATH,
+				              CONSTRAINT_TYPE_CLAMPTO))
+				{
+					/* These constraints require path geometry data. */
 					ComponentKey target_key(&ct->tar->id, DEG_NODE_TYPE_GEOMETRY);
-					add_relation(target_key, constraint_op_key, cti->name); // XXX: type = geom_transform
-					// TODO: path dependency
+					add_relation(target_key, constraint_op_key, cti->name);
+					ComponentKey target_transform_key(&ct->tar->id,
+					                                  DEG_NODE_TYPE_TRANSFORM);
+					add_relation(target_transform_key, constraint_op_key, cti->name);
 				}
 				else if ((ct->tar->type == OB_ARMATURE) && (ct->subtarget[0])) {
 					/* bone */
 					if (&ct->tar->id == id) {
 						/* same armature  */
 						eDepsOperation_Code target_key_opcode;
-
-						/* Using "done" here breaks in-chain deps, while using "ready" here breaks most production rigs instead...
-						 * So, we do a compromise here, and only do this when an IK chain conflict may occur
+						/* Using "done" here breaks in-chain deps, while using
+						 * "ready" here breaks most production rigs instead.
+						 * So, we do a compromise here, and only do this when an
+						 * IK chain conflict may occur.
 						 */
-						if (root_map->has_common_root(component_subdata, ct->subtarget)) {
+						if (root_map->has_common_root(component_subdata,
+						                              ct->subtarget))
+						{
 							target_key_opcode = DEG_OPCODE_BONE_READY;
 						}
 						else {
 							target_key_opcode = DEG_OPCODE_BONE_DONE;
 						}
-
-						OperationKey target_key(&ct->tar->id, DEG_NODE_TYPE_BONE, ct->subtarget, target_key_opcode);
+						OperationKey target_key(&ct->tar->id,
+						                        DEG_NODE_TYPE_BONE,
+						                        ct->subtarget,
+						                        target_key_opcode);
 						add_relation(target_key, constraint_op_key, cti->name);
 					}
 					else {
-						/* different armature - we can safely use the result of that */
-						OperationKey target_key(&ct->tar->id, DEG_NODE_TYPE_BONE, ct->subtarget, DEG_OPCODE_BONE_DONE);
+						/* Different armature - we can safely use the result
+						 * of that.
+						 */
+						OperationKey target_key(&ct->tar->id,
+						                        DEG_NODE_TYPE_BONE,
+						                        ct->subtarget,
+						                        DEG_OPCODE_BONE_DONE);
 						add_relation(target_key, constraint_op_key, cti->name);
 					}
 				}
-				else if (ELEM(ct->tar->type, OB_MESH, OB_LATTICE) && (ct->subtarget[0])) {
-					/* vertex group */
-					/* NOTE: for now, we don't need to represent vertex groups separately... */
+				else if (ELEM(ct->tar->type, OB_MESH, OB_LATTICE) &&
+				         (ct->subtarget[0]))
+				{
+					/* Vertex group. */
+					/* NOTE: for now, we don't need to represent vertex groups
+					 * separately.
+					 */
 					ComponentKey target_key(&ct->tar->id, DEG_NODE_TYPE_GEOMETRY);
 					add_relation(target_key, constraint_op_key, cti->name);
-
 					if (ct->tar->type == OB_MESH) {
 						OperationDepsNode *node2 = find_operation_node(target_key);
 						if (node2 != NULL) {
@@ -778,37 +815,48 @@ void DepsgraphRelationBuilder::build_constraints(Scene *scene, ID *id, eDepsNode
 					/* Constraints which requires the target object surface. */
 					ComponentKey target_key(&ct->tar->id, DEG_NODE_TYPE_GEOMETRY);
 					add_relation(target_key, constraint_op_key, cti->name);
-
-					/* NOTE: obdata eval now doesn't necessarily depend on the object's transform... */
-					ComponentKey target_transform_key(&ct->tar->id, DEG_NODE_TYPE_TRANSFORM);
+					/* NOTE: obdata eval now doesn't necessarily depend on the
+					 * object's transform.
+					 */
+					ComponentKey target_transform_key(&ct->tar->id,
+					                                  DEG_NODE_TYPE_TRANSFORM);
 					add_relation(target_transform_key, constraint_op_key, cti->name);
 				}
 				else {
-					/* standard object relation */
+					/* Standard object relation. */
 					// TODO: loc vs rot vs scale?
 					if (&ct->tar->id == id) {
 						/* Constraint targetting own object:
-						 * - This case is fine IFF we're dealing with a bone constraint pointing to
-						 *   its own armature. In that case, it's just transform -> bone.
-						 * - If however it is a real self targetting case, just make it depend on the
-						 *   previous constraint (or the pre-constraint state)...
+						 * - This case is fine IFF we're dealing with a bone
+						 *   constraint pointing to its own armature. In that
+						 *   case, it's just transform -> bone.
+						 * - If however it is a real self targetting case, just
+						 *   make it depend on the previous constraint (or the
+						 *   pre-constraint state).
 						 */
-						if ((ct->tar->type == OB_ARMATURE) && (component_type == DEG_NODE_TYPE_BONE)) {
-							OperationKey target_key(&ct->tar->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_TRANSFORM_FINAL);
+						if ((ct->tar->type == OB_ARMATURE) &&
+						    (component_type == DEG_NODE_TYPE_BONE))
+						{
+							OperationKey target_key(&ct->tar->id,
+							                        DEG_NODE_TYPE_TRANSFORM,
+							                        DEG_OPCODE_TRANSFORM_FINAL);
 							add_relation(target_key, constraint_op_key, cti->name);
 						}
 						else {
-							OperationKey target_key(&ct->tar->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_TRANSFORM_LOCAL);
+							OperationKey target_key(&ct->tar->id,
+							                        DEG_NODE_TYPE_TRANSFORM,
+							                        DEG_OPCODE_TRANSFORM_LOCAL);
 							add_relation(target_key, constraint_op_key, cti->name);
 						}
 					}
 					else {
-						/* normal object dependency */
-						OperationKey target_key(&ct->tar->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_TRANSFORM_FINAL);
+						/* Normal object dependency. */
+						OperationKey target_key(&ct->tar->id,
+						                        DEG_NODE_TYPE_TRANSFORM,
+						                        DEG_OPCODE_TRANSFORM_FINAL);
 						add_relation(target_key, constraint_op_key, cti->name);
 					}
 				}
-
 				/* Constraints which needs world's matrix for transform.
 				 * TODO(sergey): More constraints here?
 				 */
@@ -819,14 +867,14 @@ void DepsgraphRelationBuilder::build_constraints(Scene *scene, ID *id, eDepsNode
 				         CONSTRAINT_TYPE_TRANSLIKE))
 				{
 					/* TODO(sergey): Add used space check. */
-					ComponentKey target_transform_key(&ct->tar->id, DEG_NODE_TYPE_TRANSFORM);
+					ComponentKey target_transform_key(&ct->tar->id,
+					                                  DEG_NODE_TYPE_TRANSFORM);
 					add_relation(target_transform_key, constraint_op_key, cti->name);
 				}
-
 			}
-
-			if (cti->flush_constraint_targets)
+			if (cti->flush_constraint_targets) {
 				cti->flush_constraint_targets(con, &targets, 1);
+			}
 		}
 	}
 }
@@ -927,16 +975,20 @@ void DepsgraphRelationBuilder::build_driver(ID *id, FCurve *fcu)
 
 	const char *rna_path = fcu->rna_path ? fcu->rna_path : "";
 
-	/* create dependency between driver and data affected by it */
+	/* Create dependency between driver and data affected by it. */
 	/* - direct property relationship... */
 	//RNAPathKey affected_key(id, fcu->rna_path);
 	//add_relation(driver_key, affected_key, "[Driver -> Data] DepsRel");
 
-	/* driver -> data components (for interleaved evaluation - bones/constraints/modifiers) */
-	// XXX: this probably should probably be moved out into a separate function
+	/* Driver -> data components (for interleaved evaluation
+	 * bones/constraints/modifiers).
+	 */
+	// XXX: this probably should probably be moved out into a separate function.
 	if (strstr(rna_path, "pose.bones[") != NULL) {
 		/* interleaved drivers during bone eval */
-		// TODO: ideally, if this is for a constraint, it goes to said constraint
+		/* TODO: ideally, if this is for a constraint, it goes to said
+		 * constraint.
+		 */
 		Object *ob = (Object *)id;
 		char *bone_name;
 
@@ -949,7 +1001,10 @@ void DepsgraphRelationBuilder::build_driver(ID *id, FCurve *fcu)
 		}
 
 		if (pchan) {
-			OperationKey bone_key(id, DEG_NODE_TYPE_BONE, pchan->name, DEG_OPCODE_BONE_LOCAL);
+			OperationKey bone_key(id,
+			                      DEG_NODE_TYPE_BONE,
+			                      pchan->name,
+			                      DEG_OPCODE_BONE_LOCAL);
 			add_relation(driver_key, bone_key, "[Driver -> Bone]");
 		}
 		else {
@@ -959,30 +1014,36 @@ void DepsgraphRelationBuilder::build_driver(ID *id, FCurve *fcu)
 		}
 	}
 	else if (GS(id->name) == ID_AR && strstr(rna_path, "bones[")) {
-		/* drivers on armature-level bone settings (i.e. bbone stuff),
-		 * which will affect the evaluation of corresponding pose bones
+		/* Drivers on armature-level bone settings (i.e. bbone stuff),
+		 * which will affect the evaluation of corresponding pose bones.
 		 */
 		IDDepsNode *arm_node = m_graph->find_id_node(id);
 		char *bone_name = BLI_str_quoted_substrN(rna_path, "bones[");
 
 		if (arm_node && bone_name) {
-			/* find objects which use this, and make their eval callbacks depend on this */
+			/* Find objects which use this, and make their eval callbacks
+			 * depend on this.
+			 */
 			foreach (DepsRelation *rel, arm_node->outlinks) {
 				IDDepsNode *to_node = (IDDepsNode *)rel->to;
-
-				/* we only care about objects with pose data which use this... */
+				/* We only care about objects with pose data which use this. */
 				if (GS(to_node->id->name) == ID_OB) {
 					Object *ob = (Object *)to_node->id;
-					bPoseChannel *pchan = BKE_pose_channel_find_name(ob->pose, bone_name); // NOTE: ob->pose may be NULL
-
-					if (pchan) {
-						OperationKey bone_key(&ob->id, DEG_NODE_TYPE_BONE, pchan->name, DEG_OPCODE_BONE_LOCAL);
-						add_relation(driver_key, bone_key, "[Arm Bone -> Driver -> Bone]");
+					/* NOTE: ob->pose may be NULL. */
+					bPoseChannel *pchan = BKE_pose_channel_find_name(
+					        ob->pose, bone_name);
+					if (pchan != NULL) {
+						OperationKey bone_key(&ob->id,
+						                      DEG_NODE_TYPE_BONE,
+						                      pchan->name,
+						                      DEG_OPCODE_BONE_LOCAL);
+						add_relation(driver_key,
+						             bone_key,
+						             "[Arm Bone -> Driver -> Bone]");
 					}
 				}
 			}
-
-			/* free temp data */
+			/* Free temp data. */
 			MEM_freeN(bone_name);
 			bone_name = NULL;
 		}
@@ -993,7 +1054,9 @@ void DepsgraphRelationBuilder::build_driver(ID *id, FCurve *fcu)
 		}
 	}
 	else if (GS(id->name) == ID_OB && strstr(rna_path, "modifiers[")) {
-		OperationKey modifier_key(id, DEG_NODE_TYPE_GEOMETRY, DEG_OPCODE_GEOMETRY_UBEREVAL);
+		OperationKey modifier_key(id,
+		                          DEG_NODE_TYPE_GEOMETRY,
+		                          DEG_OPCODE_GEOMETRY_UBEREVAL);
 		if (has_node(modifier_key)) {
 			add_relation(driver_key, modifier_key, "[Driver -> Modifier]");
 		}
@@ -1002,7 +1065,7 @@ void DepsgraphRelationBuilder::build_driver(ID *id, FCurve *fcu)
 		}
 	}
 	else if (GS(id->name) == ID_KE && strstr(rna_path, "key_blocks[")) {
-		/* shape key driver - hook into the base geometry operation */
+		/* Shape key driver - hook into the base geometry operation. */
 		// XXX: double check where this points
 		Key *shape_key = (Key *)id;
 
@@ -1016,33 +1079,44 @@ void DepsgraphRelationBuilder::build_driver(ID *id, FCurve *fcu)
 	else {
 		if (GS(id->name) == ID_OB) {
 			/* assume that driver affects a transform... */
-			OperationKey local_transform_key(id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_TRANSFORM_LOCAL);
-			add_relation(driver_key, local_transform_key, "[Driver -> Transform]");
+			OperationKey local_transform_key(id,
+			                                 DEG_NODE_TYPE_TRANSFORM,
+			                                 DEG_OPCODE_TRANSFORM_LOCAL);
+			add_relation(driver_key,
+			             local_transform_key,
+			             "[Driver -> Transform]");
 		}
 		else if (GS(id->name) == ID_KE) {
 			ComponentKey geometry_key(id, DEG_NODE_TYPE_GEOMETRY);
-			add_relation(driver_key, geometry_key, "[Driver -> Shapekey Geometry]");
+			add_relation(driver_key,
+			             geometry_key,
+			             "[Driver -> Shapekey Geometry]");
 		}
 	}
-
-	/* ensure that affected prop's update callbacks will be triggered once done */
-	// TODO: implement this once the functionality to add these links exists in RNA
-	// XXX: the data itself could also set this, if it were to be truly initialised later?
-
-	/* loop over variables to get the target relationships */
+	/* Ensure that affected prop's update callbacks will be triggered once
+	 * done.
+	 */
+	/* TODO: Implement this once the functionality to add these links exists
+	 * RNA.
+	 */
+	/* XXX: the data itself could also set this, if it were to be truly
+	 * initialised later?
+	 */
+	/* Loop over variables to get the target relationships. */
 	LINKLIST_FOREACH (DriverVar *, dvar, &driver->variables) {
-		/* only used targets */
+		/* Only used targets. */
 		DRIVER_TARGETS_USED_LOOPER(dvar)
 		{
-			if (dtar->id == NULL)
+			if (dtar->id == NULL) {
 				continue;
-
-			/* special handling for directly-named bones */
+			}
+			/* Special handling for directly-named bones. */
 			if ((dtar->flag & DTAR_FLAG_STRUCT_REF) && (dtar->pchan_name[0])) {
 				Object *ob = (Object *)dtar->id;
-				bPoseChannel *target_pchan = BKE_pose_channel_find_name(ob->pose, dtar->pchan_name);
+				bPoseChannel *target_pchan =
+				        BKE_pose_channel_find_name(ob->pose, dtar->pchan_name);
 				if (target_pchan != NULL) {
-					/* get node associated with bone */
+					/* Get node associated with bone. */
 					// XXX: watch the space!
 					/* Some cases can't use final bone transform, for example:
 					 * - Driving the bone with itself (addressed here)
@@ -1054,55 +1128,75 @@ void DepsgraphRelationBuilder::build_driver(ID *id, FCurve *fcu)
 					{
 						continue;
 					}
-					OperationKey target_key(dtar->id, DEG_NODE_TYPE_BONE, target_pchan->name, DEG_OPCODE_BONE_DONE);
-					add_relation(target_key, driver_key, "[Bone Target -> Driver]");
+					OperationKey target_key(dtar->id,
+					                        DEG_NODE_TYPE_BONE,
+					                        target_pchan->name,
+					                        DEG_OPCODE_BONE_DONE);
+					add_relation(target_key,
+					             driver_key,
+					             "[Bone Target -> Driver]");
 				}
 			}
 			else if (dtar->flag & DTAR_FLAG_STRUCT_REF) {
-				/* get node associated with the object's transforms */
-				OperationKey target_key(dtar->id, DEG_NODE_TYPE_TRANSFORM, DEG_OPCODE_TRANSFORM_FINAL);
+				/* Get node associated with the object's transforms. */
+				if (dtar->id == id) {
+					/* Ignore input dependency if we're driving properties of
+					 * the same ID, otherwise we'll be ending up in a cyclic
+					 * dependency here.
+					 */
+					continue;
+				}
+				OperationKey target_key(dtar->id,
+				                        DEG_NODE_TYPE_TRANSFORM,
+				                        DEG_OPCODE_TRANSFORM_FINAL);
 				add_relation(target_key, driver_key, "[Target -> Driver]");
 			}
 			else if (dtar->rna_path && strstr(dtar->rna_path, "pose.bones[")) {
-				/* workaround for ensuring that local bone transforms don't end up
-				 * having to wait for pose eval to finish (to prevent cycles)
+				/* Workaround for ensuring that local bone transforms don't end
+				 * up having to wait for pose eval to finish (to prevent cycles).
 				 */
 				Object *ob = (Object *)dtar->id;
-				char *bone_name = BLI_str_quoted_substrN(dtar->rna_path, "pose.bones[");
-				bPoseChannel *target_pchan = BKE_pose_channel_find_name(ob->pose, bone_name);
-				if (bone_name) {
+				char *bone_name = BLI_str_quoted_substrN(dtar->rna_path,
+				                                         "pose.bones[");
+				bPoseChannel *target_pchan =
+				        BKE_pose_channel_find_name(ob->pose, bone_name);
+				if (bone_name != NULL) {
 					MEM_freeN(bone_name);
 					bone_name = NULL;
 				}
-				if (target_pchan) {
+				if (target_pchan != NULL) {
 					if (dtar->id == id &&
 					    pchan != NULL &&
 					    STREQ(pchan->name, target_pchan->name))
 					{
 						continue;
 					}
-					OperationKey bone_key(dtar->id, DEG_NODE_TYPE_BONE, target_pchan->name, DEG_OPCODE_BONE_LOCAL);
+					OperationKey bone_key(dtar->id,
+					                      DEG_NODE_TYPE_BONE,
+					                      target_pchan->name,
+					                      DEG_OPCODE_BONE_LOCAL);
 					add_relation(bone_key, driver_key, "[RNA Bone -> Driver]");
 				}
 			}
 			else {
 				if (dtar->id == id) {
-					/* Ignore input dependency if we're driving properties of the same ID,
-					 * otherwise we'll be ending up in a cyclic dependency here.
+					/* Ignore input dependency if we're driving properties of
+					 * the same ID, otherwise we'll be ending up in a cyclic
+					 * dependency here.
 					 */
 					continue;
 				}
-				/* resolve path to get node */
-				RNAPathKey target_key(dtar->id, dtar->rna_path ? dtar->rna_path : "");
+				/* Resolve path to get node. */
+				RNAPathKey target_key(dtar->id,
+				                      dtar->rna_path ? dtar->rna_path : "");
 				add_relation(target_key, driver_key, "[RNA Target -> Driver]");
 			}
 		}
 		DRIVER_TARGETS_LOOPER_END
 	}
-
-	/* It's quite tricky to detect if the driver actually depends on time or not,
-	 * so for now we'll be quite conservative here about optimization and consider
-	 * all python drivers to be depending on time.
+	/* It's quite tricky to detect if the driver actually depends on time or
+	 * not, so for now we'll be quite conservative here about optimization and
+	 * consider all python drivers to be depending on time.
 	 */
 	if ((driver->type == DRIVER_TYPE_PYTHON) &&
 	    python_driver_depends_on_time(driver))
@@ -1239,6 +1333,13 @@ void DepsgraphRelationBuilder::build_particles(Scene *scene, Object *ob)
 	OperationKey obdata_ubereval_key(&ob->id,
 	                                 DEG_NODE_TYPE_GEOMETRY,
 	                                 DEG_OPCODE_GEOMETRY_UBEREVAL);
+	OperationKey eval_init_key(&ob->id,
+	                           DEG_NODE_TYPE_EVAL_PARTICLES,
+	                           DEG_OPCODE_PSYS_EVAL_INIT);
+	/* TODO(sergey): Are all particle systems depends on time?
+	 * Hair without dynamics i.e.
+	 */
+	add_relation(time_src_key, eval_init_key, "TimeSrc -> PSys");
 
 	/* particle systems */
 	LINKLIST_FOREACH (ParticleSystem *, psys, &ob->particlesystem) {
@@ -1254,10 +1355,7 @@ void DepsgraphRelationBuilder::build_particles(Scene *scene, Object *ob)
 		if (!psys_check_enabled(ob, psys, G.is_rendering))
 			continue;
 
-		/* TODO(sergey): Are all particle systems depends on time?
-		 * Hair without dynamics i.e.
-		 */
-		add_relation(time_src_key, psys_key, "TimeSrc -> PSys");
+		add_relation(eval_init_key, psys_key, "Init -> PSys");
 
 		/* TODO(sergey): Currently particle update is just a placeholder,
 		 * hook it to the ubereval node so particle system is getting updated
@@ -1737,8 +1835,18 @@ void DepsgraphRelationBuilder::build_cachefile(CacheFile *cache_file) {
 
 void DepsgraphRelationBuilder::build_mask(Mask *mask)
 {
-	/* Animation. */
-	build_animdata(&mask->id);
+	ID *mask_id = &mask->id;
+	/* F-Curve animation. */
+	build_animdata(mask_id);
+	/* Own mask animation. */
+	OperationKey mask_animation_key(mask_id,
+	                                DEG_NODE_TYPE_ANIMATION,
+	                                DEG_OPCODE_MASK_ANIMATION);
+	TimeSourceKey time_src_key;
+	add_relation(time_src_key, mask_animation_key, "TimeSrc -> Mask Animation");
+	/* Final mask evaluation. */
+	ComponentKey parameters_key(mask_id, DEG_NODE_TYPE_PARAMETERS);
+	add_relation(mask_animation_key, parameters_key, "Mask Animation -> Mask Eval");
 }
 
 void DepsgraphRelationBuilder::build_movieclip(MovieClip *clip)
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_relations_rig.cc b/source/blender/depsgraph/intern/builder/deg_builder_relations_rig.cc
index be666165a0b..ca548ed33d0 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_relations_rig.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_relations_rig.cc
@@ -83,7 +83,15 @@ void DepsgraphRelationBuilder::build_ik_pose(Object *ob,
 	 * - see notes on direction of rel below...
 	 */
 	bPoseChannel *rootchan = BKE_armature_ik_solver_find_root(pchan, data);
-	OperationKey solver_key(&ob->id, DEG_NODE_TYPE_EVAL_POSE, rootchan->name, DEG_OPCODE_POSE_IK_SOLVER);
+	OperationKey pchan_local_key(&ob->id, DEG_NODE_TYPE_BONE,
+	                             pchan->name, DEG_OPCODE_BONE_LOCAL);
+	OperationKey init_ik_key(&ob->id, DEG_NODE_TYPE_EVAL_POSE, DEG_OPCODE_POSE_INIT_IK);
+	OperationKey solver_key(&ob->id, DEG_NODE_TYPE_EVAL_POSE,
+	                        rootchan->name,
+	                        DEG_OPCODE_POSE_IK_SOLVER);
+
+	add_relation(pchan_local_key, init_ik_key, "IK Constraint -> Init IK Tree");
+	add_relation(init_ik_key, solver_key, "Init IK -> IK Solver");
 
 	/* IK target */
 	// XXX: this should get handled as part of the constraint code
@@ -300,9 +308,11 @@ void DepsgraphRelationBuilder::build_rig(Scene *scene, Object *ob)
 
 	/* attach links between pose operations */
 	OperationKey init_key(&ob->id, DEG_NODE_TYPE_EVAL_POSE, DEG_OPCODE_POSE_INIT);
+	OperationKey init_ik_key(&ob->id, DEG_NODE_TYPE_EVAL_POSE, DEG_OPCODE_POSE_INIT_IK);
 	OperationKey flush_key(&ob->id, DEG_NODE_TYPE_EVAL_POSE, DEG_OPCODE_POSE_DONE);
 
-	add_relation(init_key, flush_key, "[Pose Init -> Pose Cleanup]");
+	add_relation(init_key, init_ik_key, "Pose Init -> Pose Init IK");
+	add_relation(init_ik_key, flush_key, "Pose Init IK -> Pose Cleanup");
 
 	/* Make sure pose is up-to-date with armature updates. */
 	OperationKey armature_key(&arm->id,
diff --git a/source/blender/depsgraph/intern/depsgraph_tag.cc b/source/blender/depsgraph/intern/depsgraph_tag.cc
index 31b4bbc7950..5adcb3a11b3 100644
--- a/source/blender/depsgraph/intern/depsgraph_tag.cc
+++ b/source/blender/depsgraph/intern/depsgraph_tag.cc
@@ -109,7 +109,7 @@ void lib_id_recalc_tag_flag(Main *bmain, ID *id, int flag)
 		 * nodes for update after relations update and after layer
 		 * visibility changes.
 		 */
-		short idtype = GS(id->name);
+		ID_Type idtype = GS(id->name);
 		if (idtype == ID_OB) {
 			Object *object = (Object *)id;
 			object->recalc |= (flag & OB_RECALC_ALL);
@@ -277,15 +277,20 @@ void DEG_ids_flush_tagged(Main *bmain)
 	     scene != NULL;
 	     scene = (Scene *)scene->id.next)
 	{
-		/* TODO(sergey): Only visible scenes? */
-		if (scene->depsgraph != NULL) {
-			DEG::deg_graph_flush_updates(
-			        bmain,
-			        reinterpret_cast<DEG::Depsgraph *>(scene->depsgraph));
-		}
+		DEG_scene_flush_update(bmain, scene);
 	}
 }
 
+void DEG_scene_flush_update(Main *bmain, Scene *scene)
+{
+	if (scene->depsgraph == NULL) {
+		return;
+	}
+	DEG::deg_graph_flush_updates(
+	        bmain,
+	        reinterpret_cast<DEG::Depsgraph *>(scene->depsgraph));
+}
+
 /* Update dependency graph when visible scenes/layers changes. */
 void DEG_graph_on_visible_update(Main *bmain, Scene *scene)
 {
@@ -347,6 +352,12 @@ void DEG_graph_on_visible_update(Main *bmain, Scene *scene)
 		GHASH_FOREACH_END();
 	}
 	scene->lay_updated |= graph->layers;
+	/* If graph is tagged for update, we don't need to bother with updates here,
+	 * nodes will be re-created.
+	 */
+	if (graph->need_update) {
+		return;
+	}
 	/* Special trick to get local view to work.  */
 	LINKLIST_FOREACH (Base *, base, &scene->base) {
 		Object *object = base->object;
diff --git a/source/blender/depsgraph/intern/depsgraph_type_defines.cc b/source/blender/depsgraph/intern/depsgraph_type_defines.cc
index 77454cd85ec..e177c8c8ec0 100644
--- a/source/blender/depsgraph/intern/depsgraph_type_defines.cc
+++ b/source/blender/depsgraph/intern/depsgraph_type_defines.cc
@@ -108,8 +108,8 @@ static const char *stringify_opcode(eDepsOperation_Code opcode)
 		STRINGIFY_OPCODE(TRANSFORM_FINAL);
 		STRINGIFY_OPCODE(OBJECT_UBEREVAL);
 		STRINGIFY_OPCODE(GEOMETRY_UBEREVAL);
-		STRINGIFY_OPCODE(GEOMETRY_PATH);
 		STRINGIFY_OPCODE(POSE_INIT);
+		STRINGIFY_OPCODE(POSE_INIT_IK);
 		STRINGIFY_OPCODE(POSE_DONE);
 		STRINGIFY_OPCODE(POSE_IK_SOLVER);
 		STRINGIFY_OPCODE(POSE_SPLINE_IK_SOLVER);
@@ -119,6 +119,9 @@ static const char *stringify_opcode(eDepsOperation_Code opcode)
 		STRINGIFY_OPCODE(BONE_READY);
 		STRINGIFY_OPCODE(BONE_DONE);
 		STRINGIFY_OPCODE(PSYS_EVAL);
+		STRINGIFY_OPCODE(PSYS_EVAL_INIT);
+		STRINGIFY_OPCODE(MASK_ANIMATION);
+		STRINGIFY_OPCODE(MASK_EVAL);
 
 		case DEG_NUM_OPCODES: return "SpecialCase";
 #undef STRINGIFY_OPCODE
diff --git a/source/blender/depsgraph/intern/depsgraph_types.h b/source/blender/depsgraph/intern/depsgraph_types.h
index c1a42941a7d..ef7b32a8d83 100644
--- a/source/blender/depsgraph/intern/depsgraph_types.h
+++ b/source/blender/depsgraph/intern/depsgraph_types.h
@@ -176,14 +176,14 @@ typedef enum eDepsOperation_Code {
 	/* XXX: Placeholder - UberEval */
 	DEG_OPCODE_GEOMETRY_UBEREVAL,
 
-	/* Curve Objects - Path Calculation (used for path-following tools, */
-	DEG_OPCODE_GEOMETRY_PATH,
-
 	/* Pose -------------------------------------------- */
 
-	/* Init IK Trees, etc. */
+	/* Init pose, clear flags, etc. */
 	DEG_OPCODE_POSE_INIT,
 
+	/* Initialize IK solver related pose stuff. */
+	DEG_OPCODE_POSE_INIT_IK,
+
 	/* Free IK Trees + Compute Deform Matrices */
 	DEG_OPCODE_POSE_DONE,
 
@@ -219,8 +219,13 @@ typedef enum eDepsOperation_Code {
 	/* Particles --------------------------------------- */
 
 	/* XXX: placeholder - Particle System eval */
+	DEG_OPCODE_PSYS_EVAL_INIT,
 	DEG_OPCODE_PSYS_EVAL,
 
+	/* Masks ------------------------------------------- */
+	DEG_OPCODE_MASK_ANIMATION,
+	DEG_OPCODE_MASK_EVAL,
+
 	DEG_NUM_OPCODES,
 } eDepsOperation_Code;
 
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_flush.cc b/source/blender/depsgraph/intern/eval/deg_eval_flush.cc
index c230ab4c8fd..0adbadeebba 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_flush.cc
+++ b/source/blender/depsgraph/intern/eval/deg_eval_flush.cc
@@ -54,6 +54,12 @@ extern "C" {
 
 namespace DEG {
 
+enum {
+	COMPONENT_STATE_NONE      = 0,
+	COMPONENT_STATE_SCHEDULED = 1,
+	COMPONENT_STATE_DONE      = 2,
+};
+
 namespace {
 
 // TODO(sergey): De-duplicate with depsgraph_tag,cc
@@ -83,7 +89,7 @@ static void flush_init_func(void *data_v, int i)
 	ComponentDepsNode *comp_node = node->owner;
 	IDDepsNode *id_node = comp_node->owner;
 	id_node->done = 0;
-	comp_node->done = 0;
+	comp_node->done = COMPONENT_STATE_NONE;
 	node->scheduled = false;
 }
 
@@ -146,7 +152,7 @@ void deg_graph_flush_updates(Main *bmain, Depsgraph *graph)
 				lib_id_recalc_data_tag(bmain, id);
 			}
 
-			if (comp_node->done == 0) {
+			if (comp_node->done != COMPONENT_STATE_DONE) {
 				Object *object = NULL;
 				if (GS(id->name) == ID_OB) {
 					object = (Object *)id;
@@ -190,10 +196,22 @@ void deg_graph_flush_updates(Main *bmain, Depsgraph *graph)
 							break;
 					}
 				}
+				/* When some target changes bone, we might need to re-run the
+				 * whole IK solver, otherwise result might be unpredictable.
+				 */
+				if (comp_node->type == DEG_NODE_TYPE_BONE) {
+					ComponentDepsNode *pose_comp =
+					        id_node->find_component(DEG_NODE_TYPE_EVAL_POSE);
+					BLI_assert(pose_comp != NULL);
+					if (pose_comp->done == COMPONENT_STATE_NONE) {
+						queue.push_front(pose_comp->get_entry_operation());
+						pose_comp->done = COMPONENT_STATE_SCHEDULED;
+					}
+				}
 			}
 
 			id_node->done = 1;
-			comp_node->done = 1;
+			comp_node->done = COMPONENT_STATE_DONE;
 
 			/* Flush to nodes along links... */
 			/* TODO(sergey): This is mainly giving speedup due ot less queue pushes, which
diff --git a/source/blender/editors/animation/anim_channels_defines.c b/source/blender/editors/animation/anim_channels_defines.c
index 5852ee72b19..dba060bfb29 100644
--- a/source/blender/editors/animation/anim_channels_defines.c
+++ b/source/blender/editors/animation/anim_channels_defines.c
@@ -4458,8 +4458,8 @@ void ANIM_channel_draw_widgets(const bContext *C, bAnimContext *ac, bAnimListEle
 		 *       a callback available (e.g. broken F-Curve rename)
 		 */
 		if (acf->name_prop(ale, &ptr, &prop)) {
-			const short margin_x = 3 * iroundf(UI_DPI_FAC);
-			const short channel_height = iroundf(ymaxc - yminc);
+			const short margin_x = 3 * round_fl_to_int(UI_DPI_FAC);
+			const short channel_height = round_fl_to_int(ymaxc - yminc);
 			const short width = ac->ar->winx - offset - (margin_x * 2);
 			uiBut *but;
 			
diff --git a/source/blender/editors/animation/anim_filter.c b/source/blender/editors/animation/anim_filter.c
index 2f73eb6b71c..e18560b95af 100644
--- a/source/blender/editors/animation/anim_filter.c
+++ b/source/blender/editors/animation/anim_filter.c
@@ -2247,6 +2247,8 @@ static void animfilter_modifier_idpoin_cb(void *afm_ptr, Object *ob, ID **idpoin
 		}
 		
 		/* TODO: images? */
+		default:
+			break;
 	}
 }
 
diff --git a/source/blender/editors/animation/anim_markers.c b/source/blender/editors/animation/anim_markers.c
index aafd7ebb1f9..efcc3e9477c 100644
--- a/source/blender/editors/animation/anim_markers.c
+++ b/source/blender/editors/animation/anim_markers.c
@@ -149,7 +149,7 @@ int ED_markers_post_apply_transform(ListBase *markers, Scene *scene, int mode, f
 					    (side == 'L' && marker->frame < cfra) ||
 					    (side == 'R' && marker->frame >= cfra))
 					{
-						marker->frame += iroundf(value);
+						marker->frame += round_fl_to_int(value);
 						changed_tot++;
 					}
 					break;
@@ -157,7 +157,7 @@ int ED_markers_post_apply_transform(ListBase *markers, Scene *scene, int mode, f
 				case TFM_TIME_SCALE:
 				{
 					/* rescale the distance between the marker and the current frame */
-					marker->frame = cfra + iroundf((float)(marker->frame - cfra) * value);
+					marker->frame = cfra + round_fl_to_int((float)(marker->frame - cfra) * value);
 					changed_tot++;
 					break;
 				}
@@ -195,7 +195,7 @@ TimeMarker *ED_markers_find_nearest_marker(ListBase *markers, float x)
 int ED_markers_find_nearest_marker_time(ListBase *markers, float x)
 {
 	TimeMarker *nearest = ED_markers_find_nearest_marker(markers, x);
-	return (nearest) ? (nearest->frame) : iroundf(x);
+	return (nearest) ? (nearest->frame) : round_fl_to_int(x);
 }
 
 
@@ -895,7 +895,7 @@ static int ed_marker_move_modal(bContext *C, wmOperator *op, const wmEvent *even
 			case PADENTER:
 			case LEFTMOUSE:
 			case MIDDLEMOUSE:
-				if (WM_modal_tweak_exit(event, mm->event_type)) {
+				if (WM_event_is_modal_tweak_exit(event, mm->event_type)) {
 					ed_marker_move_exit(C, op);
 					WM_event_add_notifier(C, NC_SCENE | ND_MARKERS, NULL);
 					WM_event_add_notifier(C, NC_ANIMATION | ND_MARKERS, NULL);
diff --git a/source/blender/editors/animation/anim_ops.c b/source/blender/editors/animation/anim_ops.c
index 0eb6508f7b2..fcdd45d4ac3 100644
--- a/source/blender/editors/animation/anim_ops.c
+++ b/source/blender/editors/animation/anim_ops.c
@@ -108,7 +108,7 @@ static void change_frame_apply(bContext *C, wmOperator *op)
 		SUBFRA = frame - (int)frame;
 	}
 	else {
-		CFRA = iroundf(frame);
+		CFRA = round_fl_to_int(frame);
 		SUBFRA = 0.0f;
 	}
 	FRAMENUMBER_MIN_CLAMP(CFRA);
@@ -301,8 +301,8 @@ static int previewrange_define_exec(bContext *C, wmOperator *op)
 	if (efra < sfra) efra = sfra;
 	
 	scene->r.flag |= SCER_PRV_RANGE;
-	scene->r.psfra = iroundf(sfra);
-	scene->r.pefra = iroundf(efra);
+	scene->r.psfra = round_fl_to_int(sfra);
+	scene->r.pefra = round_fl_to_int(efra);
 	
 	/* send notifiers */
 	WM_event_add_notifier(C, NC_SCENE | ND_FRAME, scene);
diff --git a/source/blender/editors/animation/drivers.c b/source/blender/editors/animation/drivers.c
index 21c25f829b1..52b93edae15 100644
--- a/source/blender/editors/animation/drivers.c
+++ b/source/blender/editors/animation/drivers.c
@@ -40,6 +40,7 @@
 #include "BLI_string.h"
 
 #include "DNA_anim_types.h"
+#include "DNA_object_types.h"
 #include "DNA_texture_types.h"
 
 #include "BKE_animsys.h"
@@ -1029,6 +1030,11 @@ static int paste_driver_button_exec(bContext *C, wmOperator *op)
 			
 			UI_context_update_anim_flag(C);
 			
+			DAG_relations_tag_update(CTX_data_main(C));
+			DAG_id_tag_update(ptr.id.data, OB_RECALC_OB | OB_RECALC_DATA);
+			
+			WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME_PROP, NULL);  // XXX
+			
 			MEM_freeN(path);
 		}
 	}
diff --git a/source/blender/editors/animation/keyframes_general.c b/source/blender/editors/animation/keyframes_general.c
index c1e82583521..071c5fab9d7 100644
--- a/source/blender/editors/animation/keyframes_general.c
+++ b/source/blender/editors/animation/keyframes_general.c
@@ -52,6 +52,7 @@
 #include "BKE_deform.h"
 
 #include "RNA_access.h"
+#include "RNA_enum_types.h"
 
 #include "ED_anim_api.h"
 #include "ED_keyframing.h"
diff --git a/source/blender/editors/animation/keyframing.c b/source/blender/editors/animation/keyframing.c
index f2a35bb1553..540886196fe 100644
--- a/source/blender/editors/animation/keyframing.c
+++ b/source/blender/editors/animation/keyframing.c
@@ -1073,10 +1073,11 @@ short insert_keyframe(ReportList *reports, ID *id, bAction *act, const char grou
 				/* for Loc/Rot/Scale and also Color F-Curves, the color of the F-Curve in the Graph Editor,
 				 * is determined by the array index for the F-Curve
 				 */
-				if (ELEM(RNA_property_subtype(prop), PROP_TRANSLATION, PROP_XYZ, PROP_EULER, PROP_COLOR, PROP_COORDS)) {
+				PropertySubType prop_subtype = RNA_property_subtype(prop);
+				if (ELEM(prop_subtype, PROP_TRANSLATION, PROP_XYZ, PROP_EULER, PROP_COLOR, PROP_COORDS)) {
 					fcu->color_mode = FCURVE_COLOR_AUTO_RGB;
 				}
-				else if (RNA_property_subtype(prop), PROP_QUATERNION) {
+				else if (ELEM(prop_subtype, PROP_QUATERNION)) {
 					fcu->color_mode = FCURVE_COLOR_AUTO_YRGB;
 				}
 			}
@@ -1785,7 +1786,9 @@ static int insert_key_button_exec(bContext *C, wmOperator *op)
 			NlaStrip *strip = (NlaStrip *)ptr.data;
 			FCurve *fcu = list_find_fcurve(&strip->fcurves, RNA_property_identifier(prop), index);
 			
-			success = insert_keyframe_direct(op->reports, ptr, prop, fcu, cfra, ts->keyframe_type, 0);
+			if (fcu) {
+				success = insert_keyframe_direct(op->reports, ptr, prop, fcu, cfra, ts->keyframe_type, 0);
+			}
 		}
 		else if (UI_but_flag_is_set(but, UI_BUT_DRIVEN)) {
 			/* Driven property - Find driver */
@@ -1890,27 +1893,27 @@ static int delete_key_button_exec(bContext *C, wmOperator *op)
 			NlaStrip *strip = (NlaStrip *)ptr.data;
 			FCurve *fcu = list_find_fcurve(&strip->fcurves, RNA_property_identifier(prop), 0);
 			
-			BLI_assert(fcu != NULL); /* NOTE: This should be true, or else we wouldn't be able to get here */
-			
-			if (BKE_fcurve_is_protected(fcu)) {
-				BKE_reportf(op->reports, RPT_WARNING,
-				            "Not deleting keyframe for locked F-Curve for NLA Strip influence on %s - %s '%s'",
-				            strip->name, BKE_idcode_to_name(GS(id->name)), id->name + 2);
-			}
-			else {
-				/* remove the keyframe directly
-				 * NOTE: cannot use delete_keyframe_fcurve(), as that will free the curve,
-				 *       and delete_keyframe() expects the FCurve to be part of an action
-				 */
-				bool found = false;
-				int i;
-				
-				/* try to find index of beztriple to get rid of */
-				i = binarysearch_bezt_index(fcu->bezt, cfra, fcu->totvert, &found);
-				if (found) {
-					/* delete the key at the index (will sanity check + do recalc afterwards) */
-					delete_fcurve_key(fcu, i, 1);
-					success = true;
+			if (fcu) {
+				if (BKE_fcurve_is_protected(fcu)) {
+					BKE_reportf(op->reports, RPT_WARNING,
+					            "Not deleting keyframe for locked F-Curve for NLA Strip influence on %s - %s '%s'",
+					            strip->name, BKE_idcode_to_name(GS(id->name)), id->name + 2);
+				}
+				else {
+					/* remove the keyframe directly
+					 * NOTE: cannot use delete_keyframe_fcurve(), as that will free the curve,
+					 *       and delete_keyframe() expects the FCurve to be part of an action
+					 */
+					bool found = false;
+					int i;
+					
+					/* try to find index of beztriple to get rid of */
+					i = binarysearch_bezt_index(fcu->bezt, cfra, fcu->totvert, &found);
+					if (found) {
+						/* delete the key at the index (will sanity check + do recalc afterwards) */
+						delete_fcurve_key(fcu, i, 1);
+						success = true;
+					}
 				}
 			}
 		}
diff --git a/source/blender/editors/animation/keyingsets.c b/source/blender/editors/animation/keyingsets.c
index 4408ec26b3f..0a27fe14de7 100644
--- a/source/blender/editors/animation/keyingsets.c
+++ b/source/blender/editors/animation/keyingsets.c
@@ -1052,6 +1052,8 @@ int ANIM_apply_keyingset(bContext *C, ListBase *dsources, bAction *act, KeyingSe
 				DAG_id_tag_update(&ob->id, OB_RECALC_OB | OB_RECALC_DATA | OB_RECALC_TIME);
 				break;
 			}
+			default:
+				break;
 		}
 		
 		/* send notifiers for updates (this doesn't require context to work!) */
diff --git a/source/blender/editors/armature/armature_edit.c b/source/blender/editors/armature/armature_edit.c
index 47e73f9b777..51b76563c72 100644
--- a/source/blender/editors/armature/armature_edit.c
+++ b/source/blender/editors/armature/armature_edit.c
@@ -66,7 +66,7 @@
 /* ************************** Object Tools Exports ******************************* */
 /* NOTE: these functions are exported to the Object module to be called from the tools there */
 
-void ED_armature_apply_transform(Object *ob, float mat[4][4])
+void ED_armature_apply_transform(Object *ob, float mat[4][4], const bool do_props)
 {
 	bArmature *arm = ob->data;
 
@@ -74,14 +74,14 @@ void ED_armature_apply_transform(Object *ob, float mat[4][4])
 	ED_armature_to_edit(arm);
 
 	/* Transform the bones */
-	ED_armature_transform_bones(arm, mat);
+	ED_armature_transform_bones(arm, mat, do_props);
 
 	/* Turn the list into an armature */
 	ED_armature_from_edit(arm);
 	ED_armature_edit_free(arm);
 }
 
-void ED_armature_transform_bones(struct bArmature *arm, float mat[4][4])
+void ED_armature_transform_bones(struct bArmature *arm, float mat[4][4], const bool do_props)
 {
 	EditBone *ebone;
 	float scale = mat4_to_scale(mat);   /* store the scale of the matrix here to use on envelopes */
@@ -106,27 +106,29 @@ void ED_armature_transform_bones(struct bArmature *arm, float mat[4][4])
 		/* apply the transformed roll back */
 		mat3_to_vec_roll(tmat, NULL, &ebone->roll);
 		
-		ebone->rad_head *= scale;
-		ebone->rad_tail *= scale;
-		ebone->dist     *= scale;
-		
-		/* we could be smarter and scale by the matrix along the x & z axis */
-		ebone->xwidth   *= scale;
-		ebone->zwidth   *= scale;
+		if (do_props) {
+			ebone->rad_head *= scale;
+			ebone->rad_tail *= scale;
+			ebone->dist     *= scale;
+
+			/* we could be smarter and scale by the matrix along the x & z axis */
+			ebone->xwidth   *= scale;
+			ebone->zwidth   *= scale;
+		}
 	}
 }
 
-void ED_armature_transform(struct bArmature *arm, float mat[4][4])
+void ED_armature_transform(struct bArmature *arm, float mat[4][4], const bool do_props)
 {
 	if (arm->edbo) {
-		ED_armature_transform_bones(arm, mat);
+		ED_armature_transform_bones(arm, mat, do_props);
 	}
 	else {
 		/* Put the armature into editmode */
 		ED_armature_to_edit(arm);
 
 		/* Transform the bones */
-		ED_armature_transform_bones(arm, mat);
+		ED_armature_transform_bones(arm, mat, do_props);
 
 		/* Go back to object mode*/
 		ED_armature_from_edit(arm);
@@ -220,7 +222,7 @@ float ED_rollBoneToVector(EditBone *bone, const float align_axis[3], const bool
 	vec_roll_to_mat3_normalized(nor, 0.0f, mat);
 
 	/* project the new_up_axis along the normal */
-	project_v3_v3v3(vec, align_axis, nor);
+	project_v3_v3v3_normalized(vec, align_axis, nor);
 	sub_v3_v3v3(align_axis_proj, align_axis, vec);
 
 	if (axis_only) {
diff --git a/source/blender/editors/armature/armature_relations.c b/source/blender/editors/armature/armature_relations.c
index 1c342657eec..417d7c8ba3b 100644
--- a/source/blender/editors/armature/armature_relations.c
+++ b/source/blender/editors/armature/armature_relations.c
@@ -380,7 +380,7 @@ int join_armature_exec(bContext *C, wmOperator *op)
 			if (base->object->adt) {
 				if (ob->adt == NULL) {
 					/* no animdata, so just use a copy of the whole thing */
-					ob->adt = BKE_animdata_copy(base->object->adt, false);
+					ob->adt = BKE_animdata_copy(bmain, base->object->adt, false);
 				}
 				else {
 					/* merge in data - we'll fix the drivers manually */
@@ -391,7 +391,7 @@ int join_armature_exec(bContext *C, wmOperator *op)
 			if (curarm->adt) {
 				if (arm->adt == NULL) {
 					/* no animdata, so just use a copy of the whole thing */
-					arm->adt = BKE_animdata_copy(curarm->adt, false);
+					arm->adt = BKE_animdata_copy(bmain, curarm->adt, false);
 				}
 				else {
 					/* merge in data - we'll fix the drivers manually */
diff --git a/source/blender/editors/armature/pose_slide.c b/source/blender/editors/armature/pose_slide.c
index 8dfcd5acab8..f62073d56ef 100644
--- a/source/blender/editors/armature/pose_slide.c
+++ b/source/blender/editors/armature/pose_slide.c
@@ -39,6 +39,7 @@
 #include "DNA_scene_types.h"
 
 #include "BKE_fcurve.h"
+#include "BKE_nla.h"
 
 #include "BKE_context.h"
 #include "BKE_object.h"
@@ -94,9 +95,13 @@ typedef struct tPoseSlideOp {
 	ListBase pfLinks;   /* links between posechannels and f-curves  */
 	DLRBT_Tree keys;    /* binary tree for quicker searching for keyframes (when applicable) */
 
-	int cframe;         /* current frame number */
-	int prevFrame;      /* frame before current frame (blend-from) */
-	int nextFrame;      /* frame after current frame (blend-to) */
+	int cframe;         /* current frame number - global time */
+	
+	int prevFrame;      /* frame before current frame (blend-from) - global time */
+	int nextFrame;      /* frame after current frame (blend-to)    - global time */
+	
+	float prevFrameF;   /* prevFrame, but in local action time (for F-Curve lookups to work) */
+	float nextFrameF;   /* nextFrame, but in local action time (for F-Curve lookups to work) */
 	
 	short mode;         /* sliding mode (ePoseSlide_Modes) */
 	short flag;         /* unused for now, but can later get used for storing runtime settings.... */
@@ -189,11 +194,15 @@ static int pose_slide_init(bContext *C, wmOperator *op, short mode)
 	pso->channels = RNA_enum_get(op->ptr, "channels");
 	pso->axislock = RNA_enum_get(op->ptr, "axis_lock");
 	
-	/* check the settings from the context */
+	/* ensure validity of the settings from the context */
 	if (ELEM(NULL, pso->ob, pso->arm, pso->ob->adt, pso->ob->adt->action))
 		return 0;
-	else
-		act = pso->ob->adt->action;
+	
+	act = pso->ob->adt->action;
+	
+	/* apply NLA mapping corrections so the frame lookups work */
+	pso->prevFrameF = BKE_nla_tweakedit_remap(pso->ob->adt, pso->prevFrame, NLATIME_CONVERT_UNMAP);
+	pso->nextFrameF = BKE_nla_tweakedit_remap(pso->ob->adt, pso->nextFrame, NLATIME_CONVERT_UNMAP);
 	
 	/* for each Pose-Channel which gets affected, get the F-Curves for that channel 
 	 * and set the relevant transform flags...
@@ -259,9 +268,9 @@ static void pose_slide_apply_val(tPoseSlideOp *pso, FCurve *fcu, float *val)
 	
 	/* get keyframe values for endpoint poses to blend with */
 	/* previous/start */
-	sVal = evaluate_fcurve(fcu, (float)pso->prevFrame);
+	sVal = evaluate_fcurve(fcu, pso->prevFrameF);
 	/* next/end */
-	eVal = evaluate_fcurve(fcu, (float)pso->nextFrame);
+	eVal = evaluate_fcurve(fcu, pso->nextFrameF);
 	
 	/* if both values are equal, don't do anything */
 	if (IS_EQF(sVal, eVal)) {
@@ -483,15 +492,15 @@ static void pose_slide_apply_quat(tPoseSlideOp *pso, tPChanFCurveLink *pfl)
 		float quat_prev[4], quat_next[4];
 		
 		/* get 2 quats */
-		quat_prev[0] = evaluate_fcurve(fcu_w, pso->prevFrame);
-		quat_prev[1] = evaluate_fcurve(fcu_x, pso->prevFrame);
-		quat_prev[2] = evaluate_fcurve(fcu_y, pso->prevFrame);
-		quat_prev[3] = evaluate_fcurve(fcu_z, pso->prevFrame);
+		quat_prev[0] = evaluate_fcurve(fcu_w, pso->prevFrameF);
+		quat_prev[1] = evaluate_fcurve(fcu_x, pso->prevFrameF);
+		quat_prev[2] = evaluate_fcurve(fcu_y, pso->prevFrameF);
+		quat_prev[3] = evaluate_fcurve(fcu_z, pso->prevFrameF);
 		
-		quat_next[0] = evaluate_fcurve(fcu_w, pso->nextFrame);
-		quat_next[1] = evaluate_fcurve(fcu_x, pso->nextFrame);
-		quat_next[2] = evaluate_fcurve(fcu_y, pso->nextFrame);
-		quat_next[3] = evaluate_fcurve(fcu_z, pso->nextFrame);
+		quat_next[0] = evaluate_fcurve(fcu_w, pso->nextFrameF);
+		quat_next[1] = evaluate_fcurve(fcu_x, pso->nextFrameF);
+		quat_next[2] = evaluate_fcurve(fcu_y, pso->nextFrameF);
+		quat_next[3] = evaluate_fcurve(fcu_z, pso->nextFrameF);
 		
 		/* perform blending */
 		if (pso->mode == POSESLIDE_BREAKDOWN) {
@@ -543,6 +552,10 @@ static void pose_slide_apply(bContext *C, tPoseSlideOp *pso)
 		/* move out one step either side */
 		pso->prevFrame--;
 		pso->nextFrame++;
+		
+		/* apply NLA mapping corrections so the frame lookups work */
+		pso->prevFrameF = BKE_nla_tweakedit_remap(pso->ob->adt, pso->prevFrame, NLATIME_CONVERT_UNMAP);
+		pso->nextFrameF = BKE_nla_tweakedit_remap(pso->ob->adt, pso->nextFrame, NLATIME_CONVERT_UNMAP);
 	}
 	
 	/* for each link, handle each set of transforms */
@@ -746,6 +759,10 @@ static int pose_slide_invoke_common(bContext *C, wmOperator *op, tPoseSlideOp *p
 			pso->nextFrame = (ak->next) ? (ak->next->cfra) : (pso->cframe + 1);
 			RNA_int_set(op->ptr, "next_frame", pso->nextFrame);
 		}
+		
+		/* apply NLA mapping corrections so the frame lookups work */
+		pso->prevFrameF = BKE_nla_tweakedit_remap(pso->ob->adt, pso->prevFrame, NLATIME_CONVERT_UNMAP);
+		pso->nextFrameF = BKE_nla_tweakedit_remap(pso->ob->adt, pso->nextFrame, NLATIME_CONVERT_UNMAP);
 	}
 	else {
 		BKE_report(op->reports, RPT_ERROR, "No keyframes to slide between");
@@ -1464,7 +1481,7 @@ static void pose_propagate_fcurve(wmOperator *op, Object *ob, FCurve *fcu,
 			
 			/* stop on matching marker if there is one */
 			for (ce = modeData.sel_markers.first; ce; ce = ce->next) {
-				if (ce->cfra == iroundf(bezt->vec[1][0]))
+				if (ce->cfra == round_fl_to_int(bezt->vec[1][0]))
 					break;
 			}
 			
diff --git a/source/blender/editors/curve/curve_intern.h b/source/blender/editors/curve/curve_intern.h
index 856573ffab0..02c76a840f1 100644
--- a/source/blender/editors/curve/curve_intern.h
+++ b/source/blender/editors/curve/curve_intern.h
@@ -40,7 +40,7 @@ struct wmOperatorType;
 struct ViewContext;
 
 /* editfont.c */
-enum { DEL_ALL, DEL_NEXT_CHAR, DEL_PREV_CHAR, DEL_SELECTION, DEL_NEXT_SEL, DEL_PREV_SEL };
+enum { DEL_NEXT_CHAR, DEL_PREV_CHAR, DEL_NEXT_WORD, DEL_PREV_WORD, DEL_SELECTION, DEL_NEXT_SEL, DEL_PREV_SEL };
 enum { CASE_LOWER, CASE_UPPER };
 enum { LINE_BEGIN, LINE_END, PREV_CHAR, NEXT_CHAR, PREV_WORD, NEXT_WORD,
        PREV_LINE, NEXT_LINE, PREV_PAGE, NEXT_PAGE };
diff --git a/source/blender/editors/curve/curve_ops.c b/source/blender/editors/curve/curve_ops.c
index fce6425b9be..5d637b113d8 100644
--- a/source/blender/editors/curve/curve_ops.c
+++ b/source/blender/editors/curve/curve_ops.c
@@ -178,9 +178,10 @@ void ED_keymap_curve(wmKeyConfig *keyconf)
 	RNA_enum_set(WM_keymap_add_item(keymap, "FONT_OT_style_toggle", PKEY, KM_PRESS, KM_CTRL, 0)->ptr, "style", CU_CHINFO_SMALLCAPS);
 
 	RNA_enum_set(WM_keymap_add_item(keymap, "FONT_OT_delete", DELKEY, KM_PRESS, 0, 0)->ptr, "type", DEL_NEXT_SEL);
+	RNA_enum_set(WM_keymap_add_item(keymap, "FONT_OT_delete", DELKEY, KM_PRESS, KM_CTRL, 0)->ptr, "type", DEL_NEXT_WORD);
 	RNA_enum_set(WM_keymap_add_item(keymap, "FONT_OT_delete", BACKSPACEKEY, KM_PRESS, 0, 0)->ptr, "type", DEL_PREV_SEL);
 	RNA_enum_set(WM_keymap_add_item(keymap, "FONT_OT_delete", BACKSPACEKEY, KM_PRESS, KM_SHIFT, 0)->ptr, "type", DEL_PREV_SEL); /* same as above [#26623] */
-	RNA_enum_set(WM_keymap_add_item(keymap, "FONT_OT_delete", BACKSPACEKEY, KM_PRESS, KM_CTRL, 0)->ptr, "type", DEL_ALL);
+	RNA_enum_set(WM_keymap_add_item(keymap, "FONT_OT_delete", BACKSPACEKEY, KM_PRESS, KM_CTRL, 0)->ptr, "type", DEL_PREV_WORD);
 
 	RNA_enum_set(WM_keymap_add_item(keymap, "FONT_OT_move", HOMEKEY, KM_PRESS, 0, 0)->ptr, "type", LINE_BEGIN);
 	RNA_enum_set(WM_keymap_add_item(keymap, "FONT_OT_move", ENDKEY, KM_PRESS, 0, 0)->ptr, "type", LINE_END);
diff --git a/source/blender/editors/curve/editcurve_paint.c b/source/blender/editors/curve/editcurve_paint.c
index 34e026a3ef4..5c3a694929e 100644
--- a/source/blender/editors/curve/editcurve_paint.c
+++ b/source/blender/editors/curve/editcurve_paint.c
@@ -70,102 +70,6 @@
 /* Distance between start/end points to consider cyclic */
 #define STROKE_CYCLIC_DIST_PX     8
 
-
-/* -------------------------------------------------------------------- */
-
-/** \name Depth Utilities
- * \{ */
-
-
-static float depth_read_zbuf(const ViewContext *vc, int x, int y)
-{
-	ViewDepths *vd = vc->rv3d->depths;
-
-	if (vd && vd->depths && x > 0 && y > 0 && x < vd->w && y < vd->h)
-		return vd->depths[y * vd->w + x];
-	else
-		return -1.0f;
-}
-
-static bool depth_unproject(
-        const ARegion *ar, const bglMats *mats,
-        const int mval[2], const double depth,
-        float r_location_world[3])
-{
-	double p[3];
-	if (gluUnProject(
-	        (double)ar->winrct.xmin + mval[0] + 0.5,
-	        (double)ar->winrct.ymin + mval[1] + 0.5,
-	        depth, mats->modelview, mats->projection, (const GLint *)mats->viewport,
-	        &p[0], &p[1], &p[2]))
-	{
-		copy_v3fl_v3db(r_location_world, p);
-		return true;
-	}
-	return false;
-}
-
-static bool depth_read_normal(
-        const ViewContext *vc, const bglMats *mats, const int mval[2],
-        float r_normal[3])
-{
-	/* pixels surrounding */
-	bool  depths_valid[9] = {false};
-	float coords[9][3] = {{0}};
-
-	ARegion *ar = vc->ar;
-	const ViewDepths *depths = vc->rv3d->depths;
-
-	for (int x = 0, i = 0; x < 2; x++) {
-		for (int y = 0; y < 2; y++) {
-			const int mval_ofs[2] = {mval[0] + (x - 1), mval[1] + (y - 1)};
-
-			const double depth = (double)depth_read_zbuf(vc, mval_ofs[0], mval_ofs[1]);
-			if ((depth > depths->depth_range[0]) && (depth < depths->depth_range[1])) {
-				if (depth_unproject(ar, mats, mval_ofs, depth, coords[i])) {
-					depths_valid[i] = true;
-				}
-			}
-			i++;
-		}
-	}
-
-	const int edges[2][6][2] = {
-	    /* x edges */
-	    {{0, 1}, {1, 2},
-	     {3, 4}, {4, 5},
-	     {6, 7}, {7, 8}},
-	    /* y edges */
-	    {{0, 3}, {3, 6},
-	     {1, 4}, {4, 7},
-	     {2, 5}, {5, 8}},
-	};
-
-	float cross[2][3] = {{0.0f}};
-
-	for (int i = 0; i < 6; i++) {
-		for (int axis = 0; axis < 2; axis++) {
-			if (depths_valid[edges[axis][i][0]] && depths_valid[edges[axis][i][1]]) {
-				float delta[3];
-				sub_v3_v3v3(delta, coords[edges[axis][i][0]], coords[edges[axis][i][1]]);
-				add_v3_v3(cross[axis], delta);
-			}
-		}
-	}
-
-	cross_v3_v3v3(r_normal, cross[0], cross[1]);
-
-	if (normalize_v3(r_normal) != 0.0f) {
-		return true;
-	}
-	else {
-		return false;
-	}
-}
-
-/** \} */
-
-
 /* -------------------------------------------------------------------- */
 
 /** \name StrokeElem / #RNA_OperatorStrokeElement Conversion Functions
@@ -308,9 +212,9 @@ static bool stroke_elem_project(
 		    ((unsigned int)mval_i[0] < depths->w) &&
 		    ((unsigned int)mval_i[1] < depths->h))
 		{
-			const double depth = (double)depth_read_zbuf(&cdd->vc, mval_i[0], mval_i[1]);
+			const double depth = (double)ED_view3d_depth_read_cached(&cdd->vc, mval_i);
 			if ((depth > depths->depth_range[0]) && (depth < depths->depth_range[1])) {
-				if (depth_unproject(ar, &cdd->mats, mval_i, depth, r_location_world)) {
+				if (ED_view3d_depth_unproject(ar, &cdd->mats, mval_i, depth, r_location_world)) {
 					is_location_world_set = true;
 					if (r_normal_world) {
 						zero_v3(r_normal_world);
@@ -319,7 +223,7 @@ static bool stroke_elem_project(
 					if (surface_offset != 0.0f) {
 						const float offset = cdd->project.use_surface_offset_absolute ? 1.0f : radius;
 						float normal[3];
-						if (depth_read_normal(&cdd->vc, &cdd->mats, mval_i, normal)) {
+						if (ED_view3d_depth_read_cached_normal(&cdd->vc, &cdd->mats, mval_i, normal)) {
 							madd_v3_v3fl(r_location_world, normal, offset * surface_offset);
 							if (r_normal_world) {
 								copy_v3_v3(r_normal_world, normal);
@@ -627,7 +531,7 @@ static void curve_draw_event_add_first(wmOperator *op, const wmEvent *event)
 		         CURVE_PAINT_SURFACE_PLANE_NORMAL_VIEW,
 		         CURVE_PAINT_SURFACE_PLANE_NORMAL_SURFACE))
 		{
-			if (depth_read_normal(&cdd->vc, &cdd->mats, event->mval, normal)) {
+			if (ED_view3d_depth_read_cached_normal(&cdd->vc, &cdd->mats, event->mval, normal)) {
 				if (cps->surface_plane == CURVE_PAINT_SURFACE_PLANE_NORMAL_VIEW) {
 					float cross_a[3], cross_b[3];
 					cross_v3_v3v3(cross_a, rv3d->viewinv[2], normal);
diff --git a/source/blender/editors/curve/editfont.c b/source/blender/editors/curve/editfont.c
index 57e731874b4..535e5d7bd28 100644
--- a/source/blender/editors/curve/editfont.c
+++ b/source/blender/editors/curve/editfont.c
@@ -1170,9 +1170,10 @@ void FONT_OT_line_break(wmOperatorType *ot)
 /******************* delete operator **********************/
 
 static EnumPropertyItem delete_type_items[] = {
-	{DEL_ALL, "ALL", 0, "All", ""},
 	{DEL_NEXT_CHAR, "NEXT_CHARACTER", 0, "Next Character", ""},
 	{DEL_PREV_CHAR, "PREVIOUS_CHARACTER", 0, "Previous Character", ""},
+	{DEL_NEXT_WORD, "NEXT_WORD", 0, "Next Word", ""},
+	{DEL_PREV_WORD, "PREVIOUS_WORD", 0, "Previous Word", ""},
 	{DEL_SELECTION, "SELECTION", 0, "Selection", ""},
 	{DEL_NEXT_SEL, "NEXT_OR_SELECTION", 0, "Next or Selection", ""},
 	{DEL_PREV_SEL, "PREVIOUS_OR_SELECTION", 0, "Previous or Selection", ""},
@@ -1183,7 +1184,9 @@ static int delete_exec(bContext *C, wmOperator *op)
 	Object *obedit = CTX_data_edit_object(C);
 	Curve *cu = obedit->data;
 	EditFont *ef = cu->editfont;
-	int x, selstart, selend, type = RNA_enum_get(op->ptr, "type");
+	int selstart, selend, type = RNA_enum_get(op->ptr, "type");
+	int range[2] = {0, 0};
+	bool has_select = false;
 
 	if (ef->len == 0)
 		return OPERATOR_CANCELLED;
@@ -1191,6 +1194,7 @@ static int delete_exec(bContext *C, wmOperator *op)
 	if (BKE_vfont_select_get(obedit, &selstart, &selend)) {
 		if (type == DEL_NEXT_SEL) type = DEL_SELECTION;
 		else if (type == DEL_PREV_SEL) type = DEL_SELECTION;
+		has_select = true;
 	}
 	else {
 		if (type == DEL_NEXT_SEL) type = DEL_NEXT_CHAR;
@@ -1198,10 +1202,6 @@ static int delete_exec(bContext *C, wmOperator *op)
 	}
 
 	switch (type) {
-		case DEL_ALL:
-			ef->len = ef->pos = 0;
-			ef->textbuf[0] = 0;
-			break;
 		case DEL_SELECTION:
 			if (!kill_selection(obedit, 0))
 				return OPERATOR_CANCELLED;
@@ -1210,29 +1210,69 @@ static int delete_exec(bContext *C, wmOperator *op)
 			if (ef->pos <= 0)
 				return OPERATOR_CANCELLED;
 
-			for (x = ef->pos; x <= ef->len; x++)
-				ef->textbuf[x - 1] = ef->textbuf[x];
-			for (x = ef->pos; x <= ef->len; x++)
-				ef->textbufinfo[x - 1] = ef->textbufinfo[x];
+			range[0] = ef->pos - 1;
+			range[1] = ef->pos;
 
 			ef->pos--;
-			ef->textbuf[--ef->len] = '\0';
 			break;
 		case DEL_NEXT_CHAR:
 			if (ef->pos >= ef->len)
 				return OPERATOR_CANCELLED;
 
-			for (x = ef->pos; x < ef->len; x++)
-				ef->textbuf[x] = ef->textbuf[x + 1];
-			for (x = ef->pos; x < ef->len; x++)
-				ef->textbufinfo[x] = ef->textbufinfo[x + 1];
+			range[0] = ef->pos;
+			range[1] = ef->pos + 1;
+			break;
+		case DEL_NEXT_WORD:
+		{
+			int pos = ef->pos;
+			BLI_str_cursor_step_wchar(ef->textbuf, ef->len, &pos, STRCUR_DIR_NEXT, STRCUR_JUMP_DELIM, true);
+			range[0] = ef->pos;
+			range[1] = pos;
+			break;
+		}
 
-			ef->textbuf[--ef->len] = '\0';
+		case DEL_PREV_WORD:
+		{
+			int pos = ef->pos;
+			BLI_str_cursor_step_wchar(ef->textbuf, ef->len, &pos, STRCUR_DIR_PREV, STRCUR_JUMP_DELIM, true);
+			range[0] = pos;
+			range[1] = ef->pos;
+			ef->pos = pos;
 			break;
+		}
 		default:
 			return OPERATOR_CANCELLED;
 	}
 
+	if (range[0] != range[1]) {
+		BLI_assert(range[0] < range[1]);
+		int len_remove = range[1] - range[0];
+		int len_tail = ef->len - range[1];
+		if (has_select) {
+			for (int i = 0; i < 2; i++) {
+				int *sel = i ? &ef->selend : &ef->selstart;
+				if (*sel <= range[0]) {
+					/* pass */
+				}
+				else if (*sel >= range[1]) {
+					*sel -= len_remove;
+				}
+				else if (*sel < range[1]) {
+					/* pass */
+					*sel = range[0];
+				}
+			}
+		}
+
+		memmove(&ef->textbuf[range[0]], &ef->textbuf[range[1]], sizeof(*ef->textbuf) * len_tail);
+		memmove(&ef->textbufinfo[range[0]], &ef->textbufinfo[range[1]], sizeof(*ef->textbufinfo) * len_tail);
+
+		ef->len -= len_remove;
+		ef->textbuf[ef->len] = '\0';
+
+		BKE_vfont_select_clamp(obedit);
+	}
+
 	text_update_edited(C, obedit, FO_EDIT);
 
 	return OPERATOR_FINISHED;
@@ -1253,7 +1293,7 @@ void FONT_OT_delete(wmOperatorType *ot)
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 
 	/* properties */
-	RNA_def_enum(ot->srna, "type", delete_type_items, DEL_ALL, "Type", "Which part of the text to delete");
+	RNA_def_enum(ot->srna, "type", delete_type_items, DEL_PREV_CHAR, "Type", "Which part of the text to delete");
 }
 
 /*********************** insert text operator *************************/
diff --git a/source/blender/editors/gpencil/drawgpencil.c b/source/blender/editors/gpencil/drawgpencil.c
index ecab37c729f..c08ed0db400 100644
--- a/source/blender/editors/gpencil/drawgpencil.c
+++ b/source/blender/editors/gpencil/drawgpencil.c
@@ -1732,10 +1732,10 @@ void ED_gpencil_draw_view3d(wmWindowManager *wm, Scene *scene, View3D *v3d, AReg
 		rctf rectf;
 		ED_view3d_calc_camera_border(scene, ar, v3d, rv3d, &rectf, true); /* no shift */
 		
-		offsx = iroundf(rectf.xmin);
-		offsy = iroundf(rectf.ymin);
-		winx  = iroundf(rectf.xmax - rectf.xmin);
-		winy  = iroundf(rectf.ymax - rectf.ymin);
+		offsx = round_fl_to_int(rectf.xmin);
+		offsy = round_fl_to_int(rectf.ymin);
+		winx  = round_fl_to_int(rectf.xmax - rectf.xmin);
+		winy  = round_fl_to_int(rectf.ymax - rectf.ymin);
 	}
 	else {
 		offsx = 0;
diff --git a/source/blender/editors/gpencil/editaction_gpencil.c b/source/blender/editors/gpencil/editaction_gpencil.c
index bd4856f1b93..90d44503013 100644
--- a/source/blender/editors/gpencil/editaction_gpencil.c
+++ b/source/blender/editors/gpencil/editaction_gpencil.c
@@ -252,8 +252,10 @@ bool ED_gplayer_frames_delete(bGPDlayer *gpl)
 	for (gpf = gpl->frames.first; gpf; gpf = gpfn) {
 		gpfn = gpf->next;
 		
-		if (gpf->flag & GP_FRAME_SELECT)
-			changed |= BKE_gpencil_layer_delframe(gpl, gpf);
+		if (gpf->flag & GP_FRAME_SELECT) {
+			BKE_gpencil_layer_delframe(gpl, gpf);
+			changed = true;
+		}
 	}
 	
 	return changed;
@@ -314,7 +316,7 @@ void ED_gplayer_frames_keytype_set(bGPDlayer *gpl, short type)
  */
 
 /* globals for copy/paste data (like for other copy/paste buffers) */
-ListBase gp_anim_copybuf = {NULL, NULL};
+static ListBase gp_anim_copybuf = {NULL, NULL};
 static int gp_anim_copy_firstframe =  999999999;
 static int gp_anim_copy_lastframe  = -999999999;
 static int gp_anim_copy_cfra       =  0;
diff --git a/source/blender/editors/gpencil/gpencil_brush.c b/source/blender/editors/gpencil/gpencil_brush.c
index 5332bec0c64..e5fb162a96c 100644
--- a/source/blender/editors/gpencil/gpencil_brush.c
+++ b/source/blender/editors/gpencil/gpencil_brush.c
@@ -710,7 +710,7 @@ static bool gp_brush_randomize_apply(tGP_BrushEditData *gso, bGPDstroke *gps, in
 			}
 			else {
 				/* ERROR */
-				BLI_assert("3D stroke being sculpted in non-3D view");
+				BLI_assert(!"3D stroke being sculpted in non-3D view");
 			}
 		}
 		else {
diff --git a/source/blender/editors/gpencil/gpencil_edit.c b/source/blender/editors/gpencil/gpencil_edit.c
index fc6df49cf6c..55a3fc09f2e 100644
--- a/source/blender/editors/gpencil/gpencil_edit.c
+++ b/source/blender/editors/gpencil/gpencil_edit.c
@@ -343,7 +343,7 @@ ListBase gp_strokes_copypastebuf = {NULL, NULL};
  * This is needed to prevent dangling and unsafe pointers when pasting across datablocks,
  * or after a color used by a stroke in the buffer gets deleted (via user action or undo).
  */
-GHash *gp_strokes_copypastebuf_colors = NULL;
+static GHash *gp_strokes_copypastebuf_colors = NULL;
 
 /* Free copy/paste buffer data */
 void ED_gpencil_strokes_copybuf_free(void)
diff --git a/source/blender/editors/gpencil/gpencil_interpolate.c b/source/blender/editors/gpencil/gpencil_interpolate.c
index 59b5b41f114..83e2a85db49 100644
--- a/source/blender/editors/gpencil/gpencil_interpolate.c
+++ b/source/blender/editors/gpencil/gpencil_interpolate.c
@@ -117,8 +117,8 @@ static void gp_interpolate_update_points(bGPDstroke *gps_from, bGPDstroke *gps_t
 		
 		/* Interpolate all values */
 		interp_v3_v3v3(&pt->x, &prev->x, &next->x, factor);
-		pt->pressure = interpf(prev->pressure, next->pressure, factor);
-		pt->strength = interpf(prev->strength, next->strength, factor);
+		pt->pressure = interpf(prev->pressure, next->pressure, 1.0f - factor);
+		pt->strength = interpf(prev->strength, next->strength, 1.0f - factor);
 		CLAMP(pt->strength, GPENCIL_STRENGTH_MIN, 1.0f);
 	}
 }
@@ -284,7 +284,9 @@ static void gp_interpolate_set_points(bContext *C, tGPDinterpolate *tgpi)
 			new_stroke = MEM_dupallocN(gps_from);
 			new_stroke->points = MEM_dupallocN(gps_from->points);
 			new_stroke->triangles = MEM_dupallocN(gps_from->triangles);
-			
+			new_stroke->tot_triangles = 0;
+			new_stroke->flag |= GP_STROKE_RECALC_CACHES;
+
 			if (valid) {
 				/* if destination stroke is smaller, resize new_stroke to size of gps_to stroke */
 				if (gps_from->totpoints > gps_to->totpoints) {
@@ -302,6 +304,7 @@ static void gp_interpolate_set_points(bContext *C, tGPDinterpolate *tgpi)
 				new_stroke->points = MEM_recallocN(new_stroke->points, sizeof(*new_stroke->points));
 				new_stroke->tot_triangles = 0;
 				new_stroke->triangles = MEM_recallocN(new_stroke->triangles, sizeof(*new_stroke->triangles));
+				new_stroke->flag |= GP_STROKE_RECALC_CACHES;
 			}
 			
 			/* add to strokes */
@@ -986,7 +989,9 @@ static int gpencil_interpolate_seq_exec(bContext *C, wmOperator *op)
 				new_stroke = MEM_dupallocN(gps_from);
 				new_stroke->points = MEM_dupallocN(gps_from->points);
 				new_stroke->triangles = MEM_dupallocN(gps_from->triangles);
-				
+				new_stroke->tot_triangles = 0;
+				new_stroke->flag |= GP_STROKE_RECALC_CACHES;
+
 				/* if destination stroke is smaller, resize new_stroke to size of gps_to stroke */
 				if (gps_from->totpoints > gps_to->totpoints) {
 					new_stroke->points = MEM_recallocN(new_stroke->points, sizeof(*new_stroke->points) * gps_to->totpoints);
diff --git a/source/blender/editors/gpencil/gpencil_ops.c b/source/blender/editors/gpencil/gpencil_ops.c
index 78e1a0dda36..3a2169798e5 100644
--- a/source/blender/editors/gpencil/gpencil_ops.c
+++ b/source/blender/editors/gpencil/gpencil_ops.c
@@ -99,8 +99,8 @@ static void ed_keymap_gpencil_general(wmKeyConfig *keyconf)
 	WM_keymap_add_item(keymap, "GPENCIL_OT_editmode_toggle", TABKEY, KM_PRESS, 0, DKEY);
 	
 	/* Pie Menu - For standard tools */
-	WM_keymap_add_menu_pie(keymap, "GPENCIL_PIE_tool_palette", QKEY, KM_PRESS, 0, DKEY);
-	WM_keymap_add_menu_pie(keymap, "GPENCIL_PIE_settings_palette", WKEY, KM_PRESS, 0, DKEY);
+	WM_keymap_add_menu_pie(keymap, "GPENCIL_MT_pie_tool_palette", QKEY, KM_PRESS, 0, DKEY);
+	WM_keymap_add_menu_pie(keymap, "GPENCIL_MT_pie_settings_palette", WKEY, KM_PRESS, 0, DKEY);
 	
 	/* Add Blank Frame */
 	/* XXX: BKEY or NKEY? BKEY is easier to reach from DKEY, so we'll use that for now */
@@ -135,7 +135,7 @@ static void ed_keymap_gpencil_editing(wmKeyConfig *keyconf)
 	WM_keymap_add_item(keymap, "GPENCIL_OT_editmode_toggle", TABKEY, KM_PRESS, 0, 0);
 	
 	/* Pie Menu - For settings/tools easy access */
-	WM_keymap_add_menu_pie(keymap, "GPENCIL_PIE_sculpt", EKEY, KM_PRESS, 0, DKEY);
+	WM_keymap_add_menu_pie(keymap, "GPENCIL_MT_pie_sculpt", EKEY, KM_PRESS, 0, DKEY);
 	
 	/* Brush Settings */
 	/* NOTE: We cannot expose these in the standard keymap, as they will interfere with regular hotkeys
diff --git a/source/blender/editors/include/ED_anim_api.h b/source/blender/editors/include/ED_anim_api.h
index 4a4ab832b28..68a5dd8a94e 100644
--- a/source/blender/editors/include/ED_anim_api.h
+++ b/source/blender/editors/include/ED_anim_api.h
@@ -124,6 +124,15 @@ typedef struct bAnimListElem {
 	void   *key_data;       /* motion data - mostly F-Curves, but can be other types too */
 	
 	
+	/* NOTE: id here is the "IdAdtTemplate"-style datablock (e.g. Object, Material, Texture, NodeTree)
+	 *       from which evaluation of the RNA-paths takes place. It's used to figure out how deep
+	 *       channels should be nested (e.g. for Textures/NodeTrees) in the tree, and allows property
+	 *       lookups (e.g. for sliders and for inserting keyframes) to work. If we had instead used
+	 *       bAction or something similar, none of this would be possible: although it's trivial
+	 *       to use an IdAdtTemplate type to find the source action a channel (e.g. F-Curve) comes from
+	 *       (i.e. in the AnimEditors, it *must* be the active action, as only that can be edited),
+	 *       it's impossible to go the other way (i.e. one action may be used in multiple places).
+	 */
 	struct ID *id;          /* ID block that channel is attached to */
 	struct AnimData *adt;   /* source of the animation data attached to ID block (for convenience) */
 	
@@ -256,7 +265,7 @@ typedef enum eAnimFilter_Flags {
 	ANIMFILTER_TMP_PEEK       = (1 << 30),
 
 	/* ignore ONLYSEL flag from filterflag, (internal use only!) */
-	ANIMFILTER_TMP_IGNORE_ONLYSEL = (1 << 31)
+	ANIMFILTER_TMP_IGNORE_ONLYSEL = (1u << 31)
 } eAnimFilter_Flags;
 
 /* ---------- Flag Checking Macros ------------ */
diff --git a/source/blender/editors/include/ED_armature.h b/source/blender/editors/include/ED_armature.h
index 6b8943421bd..9130336228d 100644
--- a/source/blender/editors/include/ED_armature.h
+++ b/source/blender/editors/include/ED_armature.h
@@ -158,9 +158,9 @@ void ED_armature_ebone_from_mat4(EditBone *ebone, float mat[4][4]);
 void transform_armature_mirror_update(struct Object *obedit);
 void ED_armature_origin_set(struct Scene *scene, struct Object *ob, float cursor[3], int centermode, int around);
 
-void ED_armature_transform_bones(struct bArmature *arm, float mat[4][4]);
-void ED_armature_apply_transform(struct Object *ob, float mat[4][4]);
-void ED_armature_transform(struct bArmature *arm, float mat[4][4]);
+void ED_armature_transform_bones(struct bArmature *arm, float mat[4][4], const bool do_props);
+void ED_armature_apply_transform(struct Object *ob, float mat[4][4], const bool do_props);
+void ED_armature_transform(struct bArmature *arm, float mat[4][4], const bool do_props);
 
 #define ARM_GROUPS_NAME     1
 #define ARM_GROUPS_ENVELOPE 2
diff --git a/source/blender/editors/include/ED_mesh.h b/source/blender/editors/include/ED_mesh.h
index 6b1e3051d2b..b5e54a56996 100644
--- a/source/blender/editors/include/ED_mesh.h
+++ b/source/blender/editors/include/ED_mesh.h
@@ -285,6 +285,7 @@ bool ED_mesh_uv_texture_remove_active(struct Mesh *me);
 bool ED_mesh_uv_texture_remove_named(struct Mesh *me, const char *name);
 void ED_mesh_uv_loop_reset(struct bContext *C, struct Mesh *me);
 void ED_mesh_uv_loop_reset_ex(struct Mesh *me, const int layernum);
+bool ED_mesh_color_ensure(struct Mesh *me, const char *name);
 int  ED_mesh_color_add(struct Mesh *me, const char *name, const bool active_set);
 bool ED_mesh_color_remove_index(struct Mesh *me, const int n);
 bool ED_mesh_color_remove_active(struct Mesh *me);
diff --git a/source/blender/editors/include/ED_transform.h b/source/blender/editors/include/ED_transform.h
index ebd2a3dcb7a..9a0a7f8f1bb 100644
--- a/source/blender/editors/include/ED_transform.h
+++ b/source/blender/editors/include/ED_transform.h
@@ -148,7 +148,8 @@ int BIF_countTransformOrientation(const struct bContext *C);
 #define P_CORRECT_UV    (1 << 8)
 #define P_NO_DEFAULTS   (1 << 10)
 #define P_NO_TEXSPACE   (1 << 11)
-#define P_GPENCIL_EDIT  (1 << 12)
+#define P_CENTER        (1 << 12)
+#define P_GPENCIL_EDIT  (1 << 13)
 
 void Transform_Properties(struct wmOperatorType *ot, int flags);
 
@@ -159,12 +160,6 @@ void BIF_draw_manipulator(const struct bContext *C);
 
 /* Snapping */
 
-typedef enum SnapSelect {
-	SNAP_ALL = 0,
-	SNAP_NOT_SELECTED = 1,
-	SNAP_NOT_ACTIVE = 2,
-} SnapSelect;
-
 #define SNAP_MIN_DISTANCE 30
 
 bool peelObjectsTransform(
@@ -187,11 +182,7 @@ bool snapObjectsTransform(
         /* return args */
         float r_loc[3], float r_no[3]);
 bool snapNodesTransform(
-        struct TransInfo *t, const int mval[2], SnapSelect snap_select,
-        /* return args */
-        float r_loc[2], float *r_dist_px, char *r_node_border);
-bool snapNodesContext(
-        struct bContext *C, const int mval[2], SnapSelect snap_select,
+        struct TransInfo *t, const int mval[2],
         /* return args */
         float r_loc[2], float *r_dist_px, char *r_node_border);
 
diff --git a/source/blender/editors/include/ED_transform_snap_object_context.h b/source/blender/editors/include/ED_transform_snap_object_context.h
index 8066adf55ce..e440e8c8389 100644
--- a/source/blender/editors/include/ED_transform_snap_object_context.h
+++ b/source/blender/editors/include/ED_transform_snap_object_context.h
@@ -40,6 +40,12 @@ struct View3D;
 
 /* ED_transform_snap_object_*** API */
 
+typedef enum SnapSelect {
+	SNAP_ALL = 0,
+	SNAP_NOT_SELECTED = 1,
+	SNAP_NOT_ACTIVE = 2,
+} SnapSelect;
+
 /** used for storing multiple hits */
 struct SnapObjectHitDepth {
 	struct SnapObjectHitDepth *next, *prev;
diff --git a/source/blender/editors/include/ED_view3d.h b/source/blender/editors/include/ED_view3d.h
index d5c301d98d6..85fb0ee4447 100644
--- a/source/blender/editors/include/ED_view3d.h
+++ b/source/blender/editors/include/ED_view3d.h
@@ -106,7 +106,14 @@ void ED_view3d_lastview_store(struct RegionView3D *rv3d);
 
 /* Depth buffer */
 void  ED_view3d_depth_update(struct ARegion *ar);
-float ED_view3d_depth_read_cached(const struct ViewContext *vc, int x, int y);
+float ED_view3d_depth_read_cached(const struct ViewContext *vc, const int mval[2]);
+bool  ED_view3d_depth_read_cached_normal(
+        const ViewContext *vc, const struct bglMats *mats, const int mval[2],
+        float r_normal[3]);
+bool ED_view3d_depth_unproject(
+        const struct ARegion *ar, const struct bglMats *mats,
+        const int mval[2], const double depth,
+        float r_location_world[3]);
 void  ED_view3d_depth_tag_update(struct RegionView3D *rv3d);
 
 /* Projection */
diff --git a/source/blender/editors/include/UI_interface.h b/source/blender/editors/include/UI_interface.h
index 252c199d46c..e14a3a3ff0a 100644
--- a/source/blender/editors/include/UI_interface.h
+++ b/source/blender/editors/include/UI_interface.h
@@ -212,6 +212,8 @@ enum {
 	UI_BUT_ALIGN_STITCH_TOP  = (1 << 18),
 	UI_BUT_ALIGN_STITCH_LEFT = (1 << 19),
 	UI_BUT_ALIGN_ALL         = (UI_BUT_ALIGN | UI_BUT_ALIGN_STITCH_TOP | UI_BUT_ALIGN_STITCH_LEFT),
+
+	UI_BUT_BOX_ITEM          = (1 << 20), /* This but is "inside" a box item (currently used to change theme colors). */
 };
 
 /* scale fixed button widths by this to account for DPI */
@@ -994,7 +996,7 @@ void uiItemsFullEnumO(
         struct IDProperty *properties, int context, int flag);
 void uiItemsFullEnumO_items(
         uiLayout *layout, struct wmOperatorType *ot, PointerRNA ptr, PropertyRNA *prop,
-        IDProperty *properties, int context, int flag,
+        struct IDProperty *properties, int context, int flag,
         const EnumPropertyItem *item_array, int totitem);
 
 void uiItemL(uiLayout *layout, const char *name, int icon); /* label */
@@ -1082,7 +1084,7 @@ void UI_butstore_unregister(uiButStore *bs_handle, uiBut **but_p);
 
 
 /* Float precision helpers */
-#define UI_PRECISION_FLOAT_MAX 7
+#define UI_PRECISION_FLOAT_MAX 6
 /* For float buttons the 'step' (or a1), is scaled */
 #define UI_PRECISION_FLOAT_SCALE 0.01f
 
diff --git a/source/blender/editors/include/UI_resources.h b/source/blender/editors/include/UI_resources.h
index f8a5f30a596..a0efd586af5 100644
--- a/source/blender/editors/include/UI_resources.h
+++ b/source/blender/editors/include/UI_resources.h
@@ -303,7 +303,6 @@ enum {
 	TH_EDGE_BEVEL,
 	TH_VERTEX_BEVEL
 };
-/* XXX WARNING: previous is saved in file, so do not change order! */
 
 /* specific defines per space should have higher define values */
 
diff --git a/source/blender/editors/include/UI_view2d.h b/source/blender/editors/include/UI_view2d.h
index 4caacb65f5f..4c0493a881c 100644
--- a/source/blender/editors/include/UI_view2d.h
+++ b/source/blender/editors/include/UI_view2d.h
@@ -203,6 +203,7 @@ bool  UI_view2d_view_to_region_clip(struct View2D *v2d, float x, float y, int *r
 
 void  UI_view2d_view_to_region(struct View2D *v2d, float x, float y, int *r_region_x, int *r_region_y) ATTR_NONNULL();
 void  UI_view2d_view_to_region_fl(struct View2D *v2d, float x, float y, float *r_region_x, float *r_region_y) ATTR_NONNULL();
+void  UI_view2d_view_to_region_m4(struct View2D *v2d, float matrix[4][4]) ATTR_NONNULL();
 void  UI_view2d_view_to_region_rcti(struct View2D *v2d, const struct rctf *rect_src, struct rcti *rect_dst) ATTR_NONNULL();
 bool  UI_view2d_view_to_region_rcti_clip(struct View2D *v2d, const struct rctf *rect_src, struct rcti *rect_dst) ATTR_NONNULL();
 
diff --git a/source/blender/editors/interface/interface.c b/source/blender/editors/interface/interface.c
index bcb1e3e648a..5c05fc8c530 100644
--- a/source/blender/editors/interface/interface.c
+++ b/source/blender/editors/interface/interface.c
@@ -488,6 +488,9 @@ static int ui_but_calc_float_precision(uiBut *but, double value)
 	else if (prec == -1) {
 		prec = (but->hardmax < 10.001f) ? 3 : 2;
 	}
+	else {
+		CLAMP(prec, 0, UI_PRECISION_FLOAT_MAX);
+	}
 
 	return UI_calc_float_precision(prec, value);
 }
@@ -684,7 +687,7 @@ static bool ui_but_update_from_old_block(const bContext *C, uiBlock *block, uiBu
 
 	if (oldbut->active) {
 		/* flags from the buttons we want to refresh, may want to add more here... */
-		const int flag_copy = UI_BUT_REDALERT;
+		const int flag_copy = UI_BUT_REDALERT | UI_HAS_ICON;
 
 		found_active = true;
 
@@ -1165,6 +1168,8 @@ static void ui_menu_block_set_keymaps(const bContext *C, uiBlock *block)
 	uiBut *but;
 	char buf[128];
 
+	BLI_assert(block->flag & UI_BLOCK_LOOP);
+
 	/* only do it before bounding */
 	if (block->rect.xmin != block->rect.xmax)
 		return;
@@ -1179,6 +1184,9 @@ static void ui_menu_block_set_keymaps(const bContext *C, uiBlock *block)
 	}
 	else {
 		for (but = block->buttons.first; but; but = but->next) {
+			if (but->dt != UI_EMBOSS_PULLDOWN) {
+				continue;
+			}
 
 			if (ui_but_event_operator_string(C, but, buf, sizeof(buf))) {
 				ui_but_add_shortcut(but, buf, false);
@@ -1932,13 +1940,14 @@ void ui_but_value_set(uiBut *but, double value)
 	else {
 		/* first do rounding */
 		if (but->pointype == UI_BUT_POIN_CHAR) {
-			value = (char)floor(value + 0.5);
+			value = round_db_to_uchar_clamp(value);
 		}
 		else if (but->pointype == UI_BUT_POIN_SHORT) {
-			value = (short)floor(value + 0.5);
+			value = round_db_to_short_clamp(value);
+		}
+		else if (but->pointype == UI_BUT_POIN_INT) {
+			value = round_db_to_int_clamp(value);
 		}
-		else if (but->pointype == UI_BUT_POIN_INT)
-			value = (int)floor(value + 0.5);
 		else if (but->pointype == UI_BUT_POIN_FLOAT) {
 			float fval = (float)value;
 			if (fval >= -0.00001f && fval <= 0.00001f) fval = 0.0f;  /* prevent negative zero */
@@ -2146,9 +2155,14 @@ static float ui_get_but_step_unit(uiBut *but, float step_default)
 
 /**
  * \param float_precision  For number buttons the precision to use or -1 to fallback to the button default.
+ * \param use_exp_float  Use exponent representation of floats when out of reasonable range (outside of 1e3/1e-3).
  */
-void ui_but_string_get_ex(uiBut *but, char *str, const size_t maxlen, const int float_precision)
+void ui_but_string_get_ex(uiBut *but, char *str, const size_t maxlen, const int float_precision, const bool use_exp_float, bool *r_use_exp_float)
 {
+	if (r_use_exp_float) {
+		*r_use_exp_float = false;
+	}
+
 	if (but->rnaprop && ELEM(but->type, UI_BTYPE_TEXT, UI_BTYPE_SEARCH_MENU)) {
 		PropertyType type;
 		const char *buf = NULL;
@@ -2216,17 +2230,38 @@ void ui_but_string_get_ex(uiBut *but, char *str, const size_t maxlen, const int
 				ui_get_but_string_unit(but, str, maxlen, value, false, float_precision);
 			}
 			else {
-				const int prec = (float_precision == -1) ? ui_but_calc_float_precision(but, value) : float_precision;
-				BLI_snprintf(str, maxlen, "%.*f", prec, value);
+				int prec = (float_precision == -1) ? ui_but_calc_float_precision(but, value) : float_precision;
+				if (use_exp_float) {
+					const int int_digits_num = integer_digits_f(value);
+					if (int_digits_num < -6 || int_digits_num > 12) {
+						BLI_snprintf(str, maxlen, "%.*g", prec, value);
+						if (r_use_exp_float) {
+							*r_use_exp_float = true;
+						}
+					}
+					else {
+						prec -= int_digits_num;
+						CLAMP(prec, 0, UI_PRECISION_FLOAT_MAX);
+						BLI_snprintf(str, maxlen, "%.*f", prec, value);
+					}
+				}
+				else {
+#if 0				/* TODO, but will likely break some stuff, so better after 2.79 release. */
+					prec -= int_digits_num;
+					CLAMP(prec, 0, UI_PRECISION_FLOAT_MAX);
+#endif
+					BLI_snprintf(str, maxlen, "%.*f", prec, value);
+				}
 			}
 		}
-		else
+		else {
 			BLI_snprintf(str, maxlen, "%d", (int)value);
+		}
 	}
 }
 void ui_but_string_get(uiBut *but, char *str, const size_t maxlen)
 {
-	ui_but_string_get_ex(but, str, maxlen, -1);
+	ui_but_string_get_ex(but, str, maxlen, -1, false, NULL);
 }
 
 /**
@@ -2448,7 +2483,9 @@ bool ui_but_string_set(bContext *C, uiBut *but, const char *str)
 			return false;
 		}
 
-		if (!ui_but_is_float(but)) value = (int)floor(value + 0.5);
+		if (!ui_but_is_float(but)) {
+			value = floor(value + 0.5);
+		}
 
 		/* not that we use hard limits here */
 		if (value < (double)but->hardmin) value = but->hardmin;
diff --git a/source/blender/editors/interface/interface_handlers.c b/source/blender/editors/interface/interface_handlers.c
index a3f0e29065d..5349744af6c 100644
--- a/source/blender/editors/interface/interface_handlers.c
+++ b/source/blender/editors/interface/interface_handlers.c
@@ -1440,87 +1440,82 @@ static bool ui_selectcontext_begin(
 		const bool is_array = RNA_property_array_check(prop);
 		const int rna_type = RNA_property_type(prop);
 
-		if (!UI_context_copy_to_selected_list(C, &ptr, prop, &lb, &use_path_from_id, &path)) {
-			goto finally;
-		}
-
-		selctx_data->elems_len = BLI_listbase_count(&lb);
-		if (selctx_data->elems_len == 0) {
-			goto finally;
-		}
-
-		selctx_data->elems = MEM_mallocN(sizeof(uiSelectContextElem) * selctx_data->elems_len, __func__);
+		if (UI_context_copy_to_selected_list(C, &ptr, prop, &lb, &use_path_from_id, &path) &&
+		    !BLI_listbase_is_empty(&lb))
+		{
+			selctx_data->elems_len = BLI_listbase_count(&lb);
+			selctx_data->elems = MEM_mallocN(sizeof(uiSelectContextElem) * selctx_data->elems_len, __func__);
 
-		for (i = 0, link = lb.first; i < selctx_data->elems_len; i++, link = link->next) {
-			uiSelectContextElem *other = &selctx_data->elems[i];
-			/* TODO,. de-duplicate copy_to_selected_button */
-			if (link->ptr.data != ptr.data) {
-				if (use_path_from_id) {
-					/* Path relative to ID. */
-					lprop = NULL;
-					RNA_id_pointer_create(link->ptr.id.data, &idptr);
-					RNA_path_resolve_property(&idptr, path, &lptr, &lprop);
-				}
-				else if (path) {
-					/* Path relative to elements from list. */
-					lprop = NULL;
-					RNA_path_resolve_property(&link->ptr, path, &lptr, &lprop);
-				}
-				else {
-					lptr = link->ptr;
-					lprop = prop;
-				}
+			for (i = 0, link = lb.first; i < selctx_data->elems_len; i++, link = link->next) {
+				uiSelectContextElem *other = &selctx_data->elems[i];
+				/* TODO,. de-duplicate copy_to_selected_button */
+				if (link->ptr.data != ptr.data) {
+					if (use_path_from_id) {
+						/* Path relative to ID. */
+						lprop = NULL;
+						RNA_id_pointer_create(link->ptr.id.data, &idptr);
+						RNA_path_resolve_property(&idptr, path, &lptr, &lprop);
+					}
+					else if (path) {
+						/* Path relative to elements from list. */
+						lprop = NULL;
+						RNA_path_resolve_property(&link->ptr, path, &lptr, &lprop);
+					}
+					else {
+						lptr = link->ptr;
+						lprop = prop;
+					}
 
-				/* lptr might not be the same as link->ptr! */
-				if ((lptr.data != ptr.data) &&
-				    (lprop == prop) &&
-				    RNA_property_editable(&lptr, lprop))
-				{
-					other->ptr = lptr;
-					if (is_array) {
-						if (rna_type == PROP_FLOAT) {
-							other->val_f = RNA_property_float_get_index(&lptr, lprop, index);
-						}
-						else if (rna_type == PROP_INT) {
-							other->val_i = RNA_property_int_get_index(&lptr, lprop, index);
-						}
-						/* ignored for now */
+					/* lptr might not be the same as link->ptr! */
+					if ((lptr.data != ptr.data) &&
+					    (lprop == prop) &&
+					    RNA_property_editable(&lptr, lprop))
+					{
+						other->ptr = lptr;
+						if (is_array) {
+							if (rna_type == PROP_FLOAT) {
+								other->val_f = RNA_property_float_get_index(&lptr, lprop, index);
+							}
+							else if (rna_type == PROP_INT) {
+								other->val_i = RNA_property_int_get_index(&lptr, lprop, index);
+							}
+							/* ignored for now */
 #if 0
-						else if (rna_type == PROP_BOOLEAN) {
-							other->val_b = RNA_property_boolean_get_index(&lptr, lprop, index);
-						}
+							else if (rna_type == PROP_BOOLEAN) {
+								other->val_b = RNA_property_boolean_get_index(&lptr, lprop, index);
+							}
 #endif
-					}
-					else {
-						if (rna_type == PROP_FLOAT) {
-							other->val_f = RNA_property_float_get(&lptr, lprop);
 						}
-						else if (rna_type == PROP_INT) {
-							other->val_i = RNA_property_int_get(&lptr, lprop);
-						}
-						/* ignored for now */
+						else {
+							if (rna_type == PROP_FLOAT) {
+								other->val_f = RNA_property_float_get(&lptr, lprop);
+							}
+							else if (rna_type == PROP_INT) {
+								other->val_i = RNA_property_int_get(&lptr, lprop);
+							}
+							/* ignored for now */
 #if 0
-						else if (rna_type == PROP_BOOLEAN) {
-							other->val_b = RNA_property_boolean_get(&lptr, lprop);
-						}
-						else if (rna_type == PROP_ENUM) {
-							other->val_i = RNA_property_enum_get(&lptr, lprop);
-						}
+							else if (rna_type == PROP_BOOLEAN) {
+								other->val_b = RNA_property_boolean_get(&lptr, lprop);
+							}
+							else if (rna_type == PROP_ENUM) {
+								other->val_i = RNA_property_enum_get(&lptr, lprop);
+							}
 #endif
-					}
+						}
 
-					continue;
+						continue;
+					}
 				}
+
+				selctx_data->elems_len -= 1;
+				i -= 1;
 			}
 
-			selctx_data->elems_len -= 1;
-			i -= 1;
+			success = (selctx_data->elems_len != 0);
 		}
 	}
 
-	success = (selctx_data->elems_len != 0);
-
-finally:
 	if (selctx_data->elems_len == 0) {
 		MEM_SAFE_FREE(selctx_data->elems);
 	}
@@ -2319,7 +2314,7 @@ static void ui_but_copy_paste(bContext *C, uiBut *but, uiHandleButtonData *data,
 			/* Get many decimal places, then strip trailing zeros.
 			 * note: too high values start to give strange results */
 			char buf_copy[UI_MAX_DRAW_STR];
-			ui_but_string_get_ex(but, buf_copy, sizeof(buf_copy), UI_PRECISION_FLOAT_MAX);
+			ui_but_string_get_ex(but, buf_copy, sizeof(buf_copy), UI_PRECISION_FLOAT_MAX, false, NULL);
 			BLI_str_rstrip_float_zero(buf_copy, '\0');
 
 			WM_clipboard_text_set(buf_copy, 0);
@@ -3060,6 +3055,7 @@ static void ui_textedit_begin(bContext *C, uiBut *but, uiHandleButtonData *data)
 	wmWindow *win = CTX_wm_window(C);
 	int len;
 	const bool is_num_but = ELEM(but->type, UI_BTYPE_NUM, UI_BTYPE_NUM_SLIDER);
+	bool no_zero_strip = false;
 
 	if (data->str) {
 		MEM_freeN(data->str);
@@ -3092,14 +3088,16 @@ static void ui_textedit_begin(bContext *C, uiBut *but, uiHandleButtonData *data)
 	data->maxlen = ui_but_string_get_max_length(but);
 	if (data->maxlen != 0) {
 		data->str = MEM_callocN(sizeof(char) * data->maxlen, "textedit str");
-		ui_but_string_get(but, data->str, data->maxlen);
+		/* We do not want to truncate precision to default here, it's nice to show value,
+		 * not to edit it - way too much precision is lost then. */
+		ui_but_string_get_ex(but, data->str, data->maxlen, UI_PRECISION_FLOAT_MAX, true, &no_zero_strip);
 	}
 	else {
 		data->is_str_dynamic = true;
 		data->str = ui_but_string_get_dynamic(but, &data->maxlen);
 	}
 
-	if (ui_but_is_float(but) && !ui_but_is_unit(but) && !ui_but_anim_expression_get(but, NULL, 0)) {
+	if (ui_but_is_float(but) && !ui_but_is_unit(but) && !ui_but_anim_expression_get(but, NULL, 0) && !no_zero_strip) {
 		BLI_str_rstrip_float_zero(data->str, '\0');
 	}
 
@@ -4297,7 +4295,7 @@ static bool ui_numedit_but_NUM(
 
 
 		if (!is_float) {
-			temp = iroundf(tempf);
+			temp = round_fl_to_int(tempf);
 
 			temp = ui_numedit_apply_snap(temp, softmin, softmax, snap);
 
@@ -4582,7 +4580,7 @@ static bool ui_numedit_but_SLI(
 
 
 	tempf = softmin + f * softrange;
-	temp = iroundf(tempf);
+	temp = round_fl_to_int(tempf);
 
 	if (snap) {
 		if (tempf == softmin || tempf == softmax) {
@@ -6792,8 +6790,8 @@ static bool ui_but_menu(bContext *C, uiBut *but)
 		/* set the prop and pointer data for python access to the hovered ui element; TODO, index could be supported as well*/
 		PointerRNA temp_ptr;
 		RNA_pointer_create(NULL, &RNA_Property, but->rnaprop, &temp_ptr);
-		uiLayoutSetContextPointer(layout,"button_prop", &temp_ptr);
-		uiLayoutSetContextPointer(layout,"button_pointer", ptr);
+		uiLayoutSetContextPointer(layout, "button_prop", &temp_ptr);
+		uiLayoutSetContextPointer(layout, "button_pointer", ptr);
 
 		/* second slower test, saved people finding keyframe items in menus when its not possible */
 		if (is_anim)
@@ -7012,8 +7010,9 @@ static bool ui_but_menu(bContext *C, uiBut *but)
 		}
 
 		/* Set the operator pointer for python access */
-		if (but->opptr)
-			uiLayoutSetContextPointer(layout,"button_operator", but->opptr);
+		if (but->opptr) {
+			uiLayoutSetContextPointer(layout, "button_operator", but->opptr);
+		}
 
 		uiItemS(layout);
 	}
@@ -7061,7 +7060,7 @@ static bool ui_but_menu(bContext *C, uiBut *but)
 	}
 	uiItemFullO(layout, "UI_OT_edittranslation_init", NULL, ICON_NONE, NULL, WM_OP_INVOKE_DEFAULT, 0);
 
-	mt = WM_menutype_find("WM_MT_button_context", false);
+	mt = WM_menutype_find("WM_MT_button_context", true);
 	if (mt) {
 		Menu menu = {NULL};
 		menu.layout = uiLayoutColumn(layout, false);
diff --git a/source/blender/editors/interface/interface_intern.h b/source/blender/editors/interface/interface_intern.h
index 067279777ba..ab760c40451 100644
--- a/source/blender/editors/interface/interface_intern.h
+++ b/source/blender/editors/interface/interface_intern.h
@@ -473,7 +473,9 @@ extern void ui_hsvcircle_pos_from_vals(struct uiBut *but, const rcti *rect, floa
 extern void ui_hsvcube_pos_from_vals(struct uiBut *but, const rcti *rect, float *hsv, float *xp, float *yp);
 bool ui_but_is_colorpicker_display_space(struct uiBut *but);
 
-extern void ui_but_string_get_ex(uiBut *but, char *str, const size_t maxlen, const int float_precision) ATTR_NONNULL();
+extern void ui_but_string_get_ex(
+        uiBut *but, char *str, const size_t maxlen,
+        const int float_precision, const bool use_exp_float, bool *r_use_exp_float) ATTR_NONNULL(1, 2);
 extern void ui_but_string_get(uiBut *but, char *str, const size_t maxlen) ATTR_NONNULL();
 extern char *ui_but_string_get_dynamic(uiBut *but, int *r_str_size);
 extern void ui_but_convert_to_unit_alt_name(uiBut *but, char *str, size_t maxlen) ATTR_NONNULL();
diff --git a/source/blender/editors/interface/interface_layout.c b/source/blender/editors/interface/interface_layout.c
index da43a58bc74..c21a76918e8 100644
--- a/source/blender/editors/interface/interface_layout.c
+++ b/source/blender/editors/interface/interface_layout.c
@@ -128,6 +128,8 @@ typedef struct uiItem {
 enum {
 	UI_ITEM_FIXED     = 1 << 0,
 	UI_ITEM_MIN       = 1 << 1,
+
+	UI_ITEM_BOX_ITEM  = 1 << 2, /* The item is "inside" a box item */
 };
 
 typedef struct uiButtonItem {
@@ -192,8 +194,9 @@ static const char *ui_item_name_add_colon(const char *name, char namestr[UI_MAX_
 static int ui_item_fit(int item, int pos, int all, int available, bool is_last, int alignment, float *extra_pixel)
 {
 	/* available == 0 is unlimited */
-	if (available == 0)
+	if (ELEM(0, available, all)) {
 		return item;
+	}
 
 	if (all > available) {
 		/* contents is bigger than available space */
@@ -216,8 +219,9 @@ static int ui_item_fit(int item, int pos, int all, int available, bool is_last,
 				return (int)width;
 			}
 		}
-		else
+		else {
 			return item;
+		}
 	}
 }
 
@@ -243,7 +247,9 @@ static int ui_text_icon_width(uiLayout *layout, const char *name, int icon, bool
 	variable = (ui_layout_vary_direction(layout) == UI_ITEM_VARY_X);
 
 	if (variable) {
-		layout->item.flag |= UI_ITEM_MIN;
+		if (layout->alignment != UI_LAYOUT_ALIGN_EXPAND) {
+			layout->item.flag |= UI_ITEM_MIN;
+		}
 		const uiFontStyle *fstyle = UI_FSTYLE_WIDGET;
 		/* it may seem odd that the icon only adds (UI_UNIT_X / 4)
 		 * but taking margins into account its fine */
@@ -700,7 +706,7 @@ static uiBut *ui_item_with_label(uiLayout *layout, uiBlock *block, const char *n
 		              WM_OP_INVOKE_DEFAULT, ICON_FILESEL, x, y, UI_UNIT_X, h, NULL);
 	}
 	else if (flag & UI_ITEM_R_EVENT) {
-		uiDefButR_prop(block, UI_BTYPE_KEY_EVENT, 0, name, x, y, w, h, ptr, prop, index, 0, 0, -1, -1, NULL);
+		but = uiDefButR_prop(block, UI_BTYPE_KEY_EVENT, 0, name, x, y, w, h, ptr, prop, index, 0, 0, -1, -1, NULL);
 	}
 	else if (flag & UI_ITEM_R_FULL_EVENT) {
 		if (RNA_struct_is_a(ptr->type, &RNA_KeyMapItem)) {
@@ -1720,6 +1726,10 @@ void ui_but_add_search(uiBut *but, PointerRNA *ptr, PropertyRNA *prop, PointerRN
 
 		UI_but_func_search_set(but, ui_searchbox_create_generic, rna_search_cb, but, NULL, NULL);
 	}
+	else if (but->type == UI_BTYPE_SEARCH_MENU) {
+		/* In case we fail to find proper searchprop, so other code might have already set but->type to search menu... */
+		but->type = UI_BTYPE_LABEL;
+	}
 }
 
 void uiItemPointerR(uiLayout *layout, struct PointerRNA *ptr, const char *propname, struct PointerRNA *searchptr, const char *searchpropname, const char *name, int icon)
@@ -2306,6 +2316,10 @@ static void ui_litem_layout_column(uiLayout *litem, bool is_box)
 
 		if (item->next && (!is_box || item != litem->items.first))
 			y -= litem->space;
+
+		if (is_box) {
+			item->flag |= UI_ITEM_BOX_ITEM;
+		}
 	}
 
 	litem->h = litem->y - y;
@@ -2457,7 +2471,6 @@ static void ui_litem_estimate_box(uiLayout *litem)
 	uiStyle *style = litem->root->style;
 
 	ui_litem_estimate_column(litem, true);
-	litem->item.flag &= ~UI_ITEM_MIN;
 	litem->w += 2 * style->boxspace;
 	litem->h += 2 * style->boxspace;
 }
@@ -3129,8 +3142,11 @@ static void ui_item_estimate(uiItem *item)
 		for (subitem = litem->items.first; subitem; subitem = subitem->next)
 			ui_item_estimate(subitem);
 
-		if (BLI_listbase_is_empty(&litem->items))
+		if (BLI_listbase_is_empty(&litem->items)) {
+			litem->w = 0;
+			litem->h = 0;
 			return;
+		}
 
 		if (litem->scale[0] != 0.0f || litem->scale[1] != 0.0f)
 			ui_item_scale(litem, litem->scale);
@@ -3266,8 +3282,18 @@ static void ui_item_layout(uiItem *item)
 				break;
 		}
 
-		for (subitem = litem->items.first; subitem; subitem = subitem->next)
+		for (subitem = litem->items.first; subitem; subitem = subitem->next) {
+			if (item->flag & UI_ITEM_BOX_ITEM) {
+				subitem->flag |= UI_ITEM_BOX_ITEM;
+			}
 			ui_item_layout(subitem);
+		}
+	}
+	else {
+		if (item->flag & UI_ITEM_BOX_ITEM) {
+			uiButtonItem *bitem = (uiButtonItem *)item;
+			bitem->but->drawflag |= UI_BUT_BOX_ITEM;
+		}
 	}
 }
 
@@ -3384,8 +3410,9 @@ void ui_layout_add_but(uiLayout *layout, uiBut *but)
 	ui_item_size((uiItem *)bitem, &w, &h);
 	/* XXX uiBut hasn't scaled yet
 	 * we can flag the button as not expandable, depending on its size */
-	if (w <= 2 * UI_UNIT_X)
+	if (w <= 2 * UI_UNIT_X && (!but->str || but->str[0] == '\0')) {
 		bitem->item.flag |= UI_ITEM_MIN;
+	}
 
 	BLI_addtail(&layout->items, bitem);
 
diff --git a/source/blender/editors/interface/interface_ops.c b/source/blender/editors/interface/interface_ops.c
index fb95cdf389b..d0c110d1db5 100644
--- a/source/blender/editors/interface/interface_ops.c
+++ b/source/blender/editors/interface/interface_ops.c
@@ -360,6 +360,9 @@ bool UI_context_copy_to_selected_list(
 	else if (RNA_struct_is_a(ptr->type, &RNA_Sequence)) {
 		*r_lb = CTX_data_collection_get(C, "selected_editable_sequences");
 	}
+	else if (RNA_struct_is_a(ptr->type, &RNA_FCurve)) {
+		*r_lb = CTX_data_collection_get(C, "selected_editable_fcurves");
+	}
 	else if (RNA_struct_is_a(ptr->type, &RNA_Node) ||
 	         RNA_struct_is_a(ptr->type, &RNA_NodeSocket))
 	{
@@ -494,51 +497,51 @@ static bool copy_to_selected_button(bContext *C, bool all, bool poll)
 		char *path = NULL;
 		bool use_path_from_id;
 		CollectionPointerLink *link;
-		ListBase lb;
-
-		if (!UI_context_copy_to_selected_list(C, &ptr, prop, &lb, &use_path_from_id, &path))
-			return success;
+		ListBase lb = {NULL};
 
-		for (link = lb.first; link; link = link->next) {
-			if (link->ptr.data != ptr.data) {
-				if (use_path_from_id) {
-					/* Path relative to ID. */
-					lprop = NULL;
-					RNA_id_pointer_create(link->ptr.id.data, &idptr);
-					RNA_path_resolve_property(&idptr, path, &lptr, &lprop);
-				}
-				else if (path) {
-					/* Path relative to elements from list. */
-					lprop = NULL;
-					RNA_path_resolve_property(&link->ptr, path, &lptr, &lprop);
-				}
-				else {
-					lptr = link->ptr;
-					lprop = prop;
-				}
+		if (UI_context_copy_to_selected_list(C, &ptr, prop, &lb, &use_path_from_id, &path) &&
+		    !BLI_listbase_is_empty(&lb))
+		{
+			for (link = lb.first; link; link = link->next) {
+				if (link->ptr.data != ptr.data) {
+					if (use_path_from_id) {
+						/* Path relative to ID. */
+						lprop = NULL;
+						RNA_id_pointer_create(link->ptr.id.data, &idptr);
+						RNA_path_resolve_property(&idptr, path, &lptr, &lprop);
+					}
+					else if (path) {
+						/* Path relative to elements from list. */
+						lprop = NULL;
+						RNA_path_resolve_property(&link->ptr, path, &lptr, &lprop);
+					}
+					else {
+						lptr = link->ptr;
+						lprop = prop;
+					}
 
-				if (lptr.data == ptr.data) {
-					/* lptr might not be the same as link->ptr! */
-					continue;
-				}
+					if (lptr.data == ptr.data) {
+						/* lptr might not be the same as link->ptr! */
+						continue;
+					}
 
-				if (lprop == prop) {
-					if (RNA_property_editable(&lptr, lprop)) {
-						if (poll) {
-							success = true;
-							break;
-						}
-						else {
-							if (RNA_property_copy(&lptr, &ptr, prop, (all) ? -1 : index)) {
-								RNA_property_update(C, &lptr, prop);
+					if (lprop == prop) {
+						if (RNA_property_editable(&lptr, lprop)) {
+							if (poll) {
 								success = true;
+								break;
+							}
+							else {
+								if (RNA_property_copy(&lptr, &ptr, prop, (all) ? -1 : index)) {
+									RNA_property_update(C, &lptr, prop);
+									success = true;
+								}
 							}
 						}
 					}
 				}
 			}
 		}
-
 		MEM_SAFE_FREE(path);
 		BLI_freelistN(&lb);
 	}
diff --git a/source/blender/editors/interface/interface_panel.c b/source/blender/editors/interface/interface_panel.c
index c131bcb8e14..d53cdddb26f 100644
--- a/source/blender/editors/interface/interface_panel.c
+++ b/source/blender/editors/interface/interface_panel.c
@@ -496,14 +496,14 @@ static void ui_draw_panel_dragwidget(const rctf *rect)
 	const int col_tint = 84;
 
 	const int px = (int)U.pixelsize;
-	const int px_zoom = max_ii(iroundf(BLI_rctf_size_y(rect) / 22.0f), 1);
+	const int px_zoom = max_ii(round_fl_to_int(BLI_rctf_size_y(rect) / 22.0f), 1);
 
-	const int box_margin = max_ii(iroundf((float)(px_zoom * 2.0f)), px);
-	const int box_size = max_ii(iroundf((BLI_rctf_size_y(rect) / 8.0f) - px), px);
+	const int box_margin = max_ii(round_fl_to_int((float)(px_zoom * 2.0f)), px);
+	const int box_size = max_ii(round_fl_to_int((BLI_rctf_size_y(rect) / 8.0f) - px), px);
 
 	const int x_min = rect->xmin;
 	const int y_min = rect->ymin;
-	const int y_ofs = max_ii(iroundf(BLI_rctf_size_y(rect) / 3.0f), px);
+	const int y_ofs = max_ii(round_fl_to_int(BLI_rctf_size_y(rect) / 3.0f), px);
 	const int x_ofs = y_ofs;
 	int i_x, i_y;
 
@@ -877,8 +877,8 @@ static bool uiAlignPanelStep(ScrArea *sa, ARegion *ar, const float fac, const bo
 	for (a = 0; a < tot; a++, ps++) {
 		if ((ps->pa->flag & PNL_SELECT) == 0) {
 			if ((ps->orig->ofsx != ps->pa->ofsx) || (ps->orig->ofsy != ps->pa->ofsy)) {
-				ps->orig->ofsx = iroundf(fac * (float)ps->pa->ofsx + (1.0f - fac) * (float)ps->orig->ofsx);
-				ps->orig->ofsy = iroundf(fac * (float)ps->pa->ofsy + (1.0f - fac) * (float)ps->orig->ofsy);
+				ps->orig->ofsx = round_fl_to_int(fac * (float)ps->pa->ofsx + (1.0f - fac) * (float)ps->orig->ofsx);
+				ps->orig->ofsy = round_fl_to_int(fac * (float)ps->pa->ofsy + (1.0f - fac) * (float)ps->orig->ofsy);
 				done = true;
 			}
 		}
@@ -1615,11 +1615,11 @@ void UI_panel_category_draw_all(ARegion *ar, const char *category_id_active)
 	PanelCategoryDyn *pc_dyn;
 	const float aspect = ((uiBlock *)ar->uiblocks.first)->aspect;
 	const float zoom = 1.0f / aspect;
-	const int px = max_ii(1, iroundf(U.pixelsize));
-	const int category_tabs_width = iroundf(UI_PANEL_CATEGORY_MARGIN_WIDTH * zoom);
+	const int px = max_ii(1, round_fl_to_int(U.pixelsize));
+	const int category_tabs_width = round_fl_to_int(UI_PANEL_CATEGORY_MARGIN_WIDTH * zoom);
 	const float dpi_fac = UI_DPI_FAC;
-	const int tab_v_pad_text = iroundf((2 + ((px * 3) * dpi_fac)) * zoom);  /* pading of tabs around text */
-	const int tab_v_pad = iroundf((4 + (2 * px * dpi_fac)) * zoom);  /* padding between tabs */
+	const int tab_v_pad_text = round_fl_to_int((2 + ((px * 3) * dpi_fac)) * zoom);  /* pading of tabs around text */
+	const int tab_v_pad = round_fl_to_int((4 + (2 * px * dpi_fac)) * zoom);  /* padding between tabs */
 	const float tab_curve_radius = ((px * 3) * dpi_fac) * zoom;
 	const int roundboxtype = UI_CNR_TOP_LEFT | UI_CNR_BOTTOM_LEFT;
 	bool is_alpha;
diff --git a/source/blender/editors/interface/interface_regions.c b/source/blender/editors/interface/interface_regions.c
index 5ed94474726..1dffce43a39 100644
--- a/source/blender/editors/interface/interface_regions.c
+++ b/source/blender/editors/interface/interface_regions.c
@@ -342,11 +342,13 @@ static uiTooltipData *ui_tooltip_data_from_button(bContext *C, uiBut *but)
 
 	/* Tip */
 	if (but_tip.strinfo) {
-		BLI_strncpy(data->header, but_tip.strinfo, sizeof(data->lines[0]));
 		if (enum_label.strinfo) {
 			BLI_snprintf(data->header, sizeof(data->header), "%s:  ", but_tip.strinfo);
 			BLI_strncpy(data->active_info, enum_label.strinfo, sizeof(data->lines[0]));
 		}
+		else {
+			BLI_snprintf(data->header, sizeof(data->header), "%s.", but_tip.strinfo);
+		}
 		data->format[data->totline].style = UI_TIP_STYLE_HEADER;
 		data->totline++;
 
@@ -2440,7 +2442,7 @@ static void ui_block_colorpicker(uiBlock *block, float rgba[4], PointerRNA *ptr,
 	BLI_snprintf(hexcol, sizeof(hexcol), "%02X%02X%02X", UNPACK3_EX((unsigned int), rgb_gamma_uchar, ));
 
 	yco = -3.0f * UI_UNIT_Y;
-	bt = uiDefBut(block, UI_BTYPE_TEXT, 0, IFACE_("Hex: "), 0, yco, butwidth, UI_UNIT_Y, hexcol, 0, 7, 0, 0, TIP_("Hex triplet for color (#RRGGBB)"));
+	bt = uiDefBut(block, UI_BTYPE_TEXT, 0, IFACE_("Hex: "), 0, yco, butwidth, UI_UNIT_Y, hexcol, 0, 8, 0, 0, TIP_("Hex triplet for color (#RRGGBB)"));
 	UI_but_func_set(bt, ui_colorpicker_hex_rna_cb, bt, hexcol);
 	bt->custom_data = cpicker;
 	uiDefBut(block, UI_BTYPE_LABEL, 0, IFACE_("(Gamma Corrected)"), 0, yco - UI_UNIT_Y, butwidth, UI_UNIT_Y, NULL, 0.0, 0.0, 0, 0, "");
@@ -2952,8 +2954,8 @@ uiPieMenu *UI_pie_menu_begin(struct bContext *C, const char *title, int icon, co
 	pie->block_radial->puphash = ui_popup_menu_hash(title);
 	pie->block_radial->flag |= UI_BLOCK_RADIAL;
 
-	/* if pie is spawned by a left click, it is always assumed to be click style */
-	if (event->type == LEFTMOUSE) {
+	/* if pie is spawned by a left click, release or click event, it is always assumed to be click style */
+	if (event->type == LEFTMOUSE || ELEM(event->val, KM_RELEASE, KM_CLICK)) {
 		pie->block_radial->pie_data.flags |= UI_PIE_CLICK_STYLE;
 		pie->block_radial->pie_data.event = EVENT_NONE;
 		win->lock_pie_event = EVENT_NONE;
diff --git a/source/blender/editors/interface/interface_templates.c b/source/blender/editors/interface/interface_templates.c
index 131584dd405..3cc16f37736 100644
--- a/source/blender/editors/interface/interface_templates.c
+++ b/source/blender/editors/interface/interface_templates.c
@@ -2841,7 +2841,7 @@ static void uilist_resize_update_cb(bContext *C, void *arg1, void *UNUSED(arg2))
 	uiListDyn *dyn_data = ui_list->dyn_data;
 
 	/* This way we get diff in number of additional items to show (positive) or hide (negative). */
-	const int diff = iroundf((float)(dyn_data->resize - dyn_data->resize_prev) / (float)UI_UNIT_Y);
+	const int diff = round_fl_to_int((float)(dyn_data->resize - dyn_data->resize_prev) / (float)UI_UNIT_Y);
 
 	if (diff != 0) {
 		ui_list->list_grip += diff;
diff --git a/source/blender/editors/interface/interface_utils.c b/source/blender/editors/interface/interface_utils.c
index cf16cc9f50d..1927d7280f3 100644
--- a/source/blender/editors/interface/interface_utils.c
+++ b/source/blender/editors/interface/interface_utils.c
@@ -265,7 +265,7 @@ int UI_icon_from_report_type(int type)
  */
 int UI_calc_float_precision(int prec, double value)
 {
-	static const double pow10_neg[UI_PRECISION_FLOAT_MAX + 1] = {1e0, 1e-1, 1e-2, 1e-3, 1e-4, 1e-5, 1e-6, 1e-7};
+	static const double pow10_neg[UI_PRECISION_FLOAT_MAX + 1] = {1e0, 1e-1, 1e-2, 1e-3, 1e-4, 1e-5, 1e-6};
 	static const double max_pow = 10000000.0;  /* pow(10, UI_PRECISION_FLOAT_MAX) */
 
 	BLI_assert(prec <= UI_PRECISION_FLOAT_MAX);
diff --git a/source/blender/editors/interface/interface_widgets.c b/source/blender/editors/interface/interface_widgets.c
index f7f2b422724..51bf09125ba 100644
--- a/source/blender/editors/interface/interface_widgets.c
+++ b/source/blender/editors/interface/interface_widgets.c
@@ -3655,11 +3655,15 @@ void ui_draw_but(const bContext *C, ARegion *ar, uiStyle *style, uiBut *but, rct
 
 		switch (but->type) {
 			case UI_BTYPE_LABEL:
-				if (but->block->flag & UI_BLOCK_LOOP)
-					widget_draw_text_icon(&style->widgetlabel, &tui->wcol_menu_back, but, rect);
-				else {
-					wt = widget_type(UI_WTYPE_LABEL);
-					fstyle = &style->widgetlabel;
+				wt = widget_type(UI_WTYPE_LABEL);
+				fstyle = &style->widgetlabel;
+				if (but->drawflag & UI_BUT_BOX_ITEM) {
+					wt->wcol_theme = &tui->wcol_box;
+					wt->state = widget_state;
+				}
+				else if (but->block->flag & UI_BLOCK_LOOP) {
+					wt->wcol_theme = &tui->wcol_menu_back;
+					wt->state = widget_state;
 				}
 				break;
 
diff --git a/source/blender/editors/interface/resources.c b/source/blender/editors/interface/resources.c
index 539284030c2..4b47d0da13e 100644
--- a/source/blender/editors/interface/resources.c
+++ b/source/blender/editors/interface/resources.c
@@ -2758,6 +2758,24 @@ void init_userdef_do_versions(void)
 		}
 	}
 
+	if (!USER_VERSION_ATLEAST(278, 6)) {
+		/* Clear preference flags for re-use. */
+		U.flag &= ~(
+		    USER_FLAG_DEPRECATED_1 | USER_FLAG_DEPRECATED_2 | USER_FLAG_DEPRECATED_3 |
+		    USER_FLAG_DEPRECATED_6 | USER_FLAG_DEPRECATED_7 |
+		    USER_FLAG_DEPRECATED_9 | USER_FLAG_DEPRECATED_10);
+		U.uiflag &= ~(
+		    USER_UIFLAG_DEPRECATED_7);
+		U.transopts &= ~(
+		    USER_TR_DEPRECATED_2 | USER_TR_DEPRECATED_3 | USER_TR_DEPRECATED_4 |
+		    USER_TR_DEPRECATED_6 | USER_TR_DEPRECATED_7);
+		U.gameflags &= ~(
+		    USER_GL_RENDER_DEPRECATED_0 | USER_GL_RENDER_DEPRECATED_1 |
+		    USER_GL_RENDER_DEPRECATED_3 | USER_GL_RENDER_DEPRECATED_4);
+
+		U.uiflag |= USER_LOCK_CURSOR_ADJUST;
+	}
+
 	/**
 	 * Include next version bump.
 	 *
diff --git a/source/blender/editors/interface/view2d.c b/source/blender/editors/interface/view2d.c
index c78d97ef86f..c704c4ae126 100644
--- a/source/blender/editors/interface/view2d.c
+++ b/source/blender/editors/interface/view2d.c
@@ -2138,6 +2138,14 @@ void UI_view2d_view_to_region_rcti(View2D *v2d, const rctf *rect_src, rcti *rect
 	clamp_rctf_to_rcti(rect_dst, &rect_tmp);
 }
 
+void UI_view2d_view_to_region_m4(View2D *v2d, float matrix[4][4])
+{
+	rctf mask;
+	unit_m4(matrix);
+	BLI_rctf_rcti_copy(&mask, &v2d->mask);
+	BLI_rctf_transform_calc_m4_pivot_min(&v2d->cur, &mask, matrix);
+}
+
 bool UI_view2d_view_to_region_rcti_clip(View2D *v2d, const rctf *rect_src, rcti *rect_dst)
 {
 	const float cur_size[2]  = {BLI_rctf_size_x(&v2d->cur),  BLI_rctf_size_y(&v2d->cur)};
diff --git a/source/blender/editors/io/io_cache.c b/source/blender/editors/io/io_cache.c
index a5e90ebbe7a..975bbddd893 100644
--- a/source/blender/editors/io/io_cache.c
+++ b/source/blender/editors/io/io_cache.c
@@ -93,7 +93,7 @@ static int cachefile_open_exec(bContext *C, wmOperator *op)
 
 	Main *bmain = CTX_data_main(C);
 
-	CacheFile *cache_file = BKE_libblock_alloc(bmain, ID_CF, BLI_path_basename(filename));
+	CacheFile *cache_file = BKE_libblock_alloc(bmain, ID_CF, BLI_path_basename(filename), 0);
 	BLI_strncpy(cache_file->filepath, filename, FILE_MAX);
 	BKE_cachefile_reload(bmain, cache_file);
 
diff --git a/source/blender/editors/mask/mask_ops.c b/source/blender/editors/mask/mask_ops.c
index 35de390274c..196285cf02a 100644
--- a/source/blender/editors/mask/mask_ops.c
+++ b/source/blender/editors/mask/mask_ops.c
@@ -999,7 +999,7 @@ static int slide_point_modal(bContext *C, wmOperator *op, const wmEvent *event)
 
 				if (weight) {
 					sub_v2_v2v2(c, offco, p);
-					project_v2_v2v2(vec, c, no);
+					project_v2_v2v2_normalized(vec, c, no);
 
 					w = len_v2(vec);
 
diff --git a/source/blender/editors/mesh/editface.c b/source/blender/editors/mesh/editface.c
index a478526dee0..6c6c106b19a 100644
--- a/source/blender/editors/mesh/editface.c
+++ b/source/blender/editors/mesh/editface.c
@@ -797,25 +797,47 @@ void ED_mesh_mirrtopo_init(Mesh *me, DerivedMesh *dm, const int ob_mode, MirrTop
 
 	qsort(topo_pairs, totvert, sizeof(MirrTopoVert_t), mirrtopo_vert_sort);
 
-	/* Since the loop starts at 2, we must define the last index where the hash's differ */
-	last = ((totvert >= 2) && (topo_pairs[0].hash == topo_pairs[1].hash)) ? 0 : 1;
+	last = 0;
 
 	/* Get the pairs out of the sorted hashes, note, totvert+1 means we can use the previous 2,
 	 * but you cant ever access the last 'a' index of MirrTopoPairs */
-	for (a = 2; a <= totvert; a++) {
-		/* printf("I %d %ld %d\n", (a-last), MirrTopoPairs[a  ].hash, MirrTopoPairs[a  ].v_index ); */
-		if ((a == totvert) || (topo_pairs[a - 1].hash != topo_pairs[a].hash)) {
-			if (a - last == 2) {
-				if (em) {
-					index_lookup[topo_pairs[a - 1].v_index] = (intptr_t)BM_vert_at_index(em->bm, topo_pairs[a - 2].v_index);
-					index_lookup[topo_pairs[a - 2].v_index] = (intptr_t)BM_vert_at_index(em->bm, topo_pairs[a - 1].v_index);
+	if (em) {
+		BMVert **vtable = em->bm->vtable;
+		for (a = 1; a <= totvert; a++) {
+			/* printf("I %d %ld %d\n", (a - last), MirrTopoPairs[a].hash, MirrTopoPairs[a].v_indexs); */
+			if ((a == totvert) || (topo_pairs[a - 1].hash != topo_pairs[a].hash)) {
+				const int match_count = a - last;
+				if (match_count == 2) {
+					const int j = topo_pairs[a - 1].v_index, k = topo_pairs[a - 2].v_index;
+					index_lookup[j] = (intptr_t)vtable[k];
+					index_lookup[k] = (intptr_t)vtable[j];
+				}
+				else if (match_count == 1) {
+					/* Center vertex. */
+					const int j = topo_pairs[a - 1].v_index;
+					index_lookup[j] = (intptr_t)vtable[j];
+				}
+				last = a;
+			}
+		}
+	}
+	else {
+		/* same as above, for mesh */
+		for (a = 1; a <= totvert; a++) {
+			if ((a == totvert) || (topo_pairs[a - 1].hash != topo_pairs[a].hash)) {
+				const int match_count = a - last;
+				if (match_count == 2) {
+					const int j = topo_pairs[a - 1].v_index, k = topo_pairs[a - 2].v_index;
+					index_lookup[j] = k;
+					index_lookup[k] = j;
 				}
-				else {
-					index_lookup[topo_pairs[a - 1].v_index] = topo_pairs[a - 2].v_index;
-					index_lookup[topo_pairs[a - 2].v_index] = topo_pairs[a - 1].v_index;
+				else if (match_count == 1) {
+					/* Center vertex. */
+					const int j = topo_pairs[a - 1].v_index;
+					index_lookup[j] = j;
 				}
+				last = a;
 			}
-			last = a;
 		}
 	}
 
diff --git a/source/blender/editors/mesh/editmesh_bevel.c b/source/blender/editors/mesh/editmesh_bevel.c
index a81add7a86e..6b4f3516338 100644
--- a/source/blender/editors/mesh/editmesh_bevel.c
+++ b/source/blender/editors/mesh/editmesh_bevel.c
@@ -150,6 +150,7 @@ static bool edbm_bevel_init(bContext *C, wmOperator *op, const bool is_modal)
 
 	for (i = 0; i < NUM_VALUE_KINDS; i++) {
 		opdata->shift_value[i] = -1.0f;
+		opdata->initial_length[i] = -1.0f;
 		/* note: scale for OFFSET_VALUE will get overwritten in edbm_bevel_invoke */
 		opdata->scale[i] = value_scale_per_inch[i] / pixels_per_inch; 
 
@@ -300,7 +301,7 @@ static void edbm_bevel_calc_initial_length(wmOperator *op, const wmEvent *event,
 	mlen[1] = opdata->mcenter[1] - event->mval[1];
 	len = len_v2(mlen);
 	vmode = opdata->value_mode;
-	if (mode_changed) {
+	if (mode_changed || opdata->initial_length[vmode] == -1.0f) {
 		/* If current value is not default start value, adjust len so that 
 		 * the scaling and offset in edbm_bevel_mouse_set_value will
 		 * start at current value */
@@ -506,6 +507,8 @@ static int edbm_bevel_modal(bContext *C, wmOperator *op, const wmEvent *event)
 					else if (opdata->value_mode == OFFSET_VALUE_PERCENT && type != BEVEL_AMT_PERCENT)
 						opdata->value_mode = OFFSET_VALUE;
 					RNA_property_enum_set(op->ptr, prop, type);
+					if (opdata->initial_length[opdata->value_mode] == -1.0f)
+						edbm_bevel_calc_initial_length(op, event, true);
 				}
 				/* Update offset accordingly to new offset_type. */
 				if (!has_numinput &&
diff --git a/source/blender/editors/mesh/editmesh_knife.c b/source/blender/editors/mesh/editmesh_knife.c
index 5e44509e10a..69e8fa03d72 100644
--- a/source/blender/editors/mesh/editmesh_knife.c
+++ b/source/blender/editors/mesh/editmesh_knife.c
@@ -1206,6 +1206,7 @@ static bool knife_ray_intersect_face(
 
 	for (; tri_i < tottri; tri_i++) {
 		const float *lv1, *lv2, *lv3;
+		float ray_tri_uv[2];
 
 		tri = kcd->em->looptris[tri_i];
 		if (tri[0]->f != f)
@@ -1217,7 +1218,7 @@ static bool knife_ray_intersect_face(
 		 * tesselation edge and might not hit either tesselation tri with
 		 * an exact test;
 		 * we will exclude hits near real edges by a later test */
-		if (isect_ray_tri_epsilon_v3(v1, raydir, lv1, lv2, lv3, &lambda, NULL, KNIFE_FLT_EPS)) {
+		if (isect_ray_tri_epsilon_v3(v1, raydir, lv1, lv2, lv3, &lambda, ray_tri_uv, KNIFE_FLT_EPS)) {
 			/* check if line coplanar with tri */
 			normal_tri_v3(tri_norm, lv1, lv2, lv3);
 			plane_from_point_normal_v3(tri_plane, lv1, tri_norm);
@@ -1226,8 +1227,7 @@ static bool knife_ray_intersect_face(
 			{
 				return false;
 			}
-			copy_v3_v3(hit_cageco, v1);
-			madd_v3_v3fl(hit_cageco, raydir, lambda);
+			interp_v3_v3v3v3_uv(hit_cageco, lv1, lv2, lv3, ray_tri_uv);
 			/* Now check that far enough away from verts and edges */
 			lst = knife_get_face_kedges(kcd, f);
 			for (ref = lst->first; ref; ref = ref->next) {
@@ -1239,11 +1239,7 @@ static bool knife_ray_intersect_face(
 					return false;
 				}
 			}
-
-			transform_point_by_tri_v3(
-			        hit_co, hit_cageco,
-			        tri[0]->v->co, tri[1]->v->co, tri[2]->v->co,
-			        lv1, lv2, lv3);
+			interp_v3_v3v3v3_uv(hit_co, tri[0]->v->co, tri[1]->v->co, tri[2]->v->co, ray_tri_uv);
 			return true;
 		}
 	}
diff --git a/source/blender/editors/mesh/editmesh_tools.c b/source/blender/editors/mesh/editmesh_tools.c
index 1f90b60a1f5..c513c49aa8e 100644
--- a/source/blender/editors/mesh/editmesh_tools.c
+++ b/source/blender/editors/mesh/editmesh_tools.c
@@ -169,7 +169,7 @@ struct EdgeRingOpSubdProps {
 };
 
 
-static void mesh_operator_edgering_props(wmOperatorType *ot, const int cuts_default)
+static void mesh_operator_edgering_props(wmOperatorType *ot, const int cuts_min, const int cuts_default)
 {
 	/* Note, these values must match delete_mesh() event values */
 	static EnumPropertyItem prop_subd_edgering_types[] = {
@@ -181,7 +181,7 @@ static void mesh_operator_edgering_props(wmOperatorType *ot, const int cuts_defa
 
 	PropertyRNA *prop;
 
-	prop = RNA_def_int(ot->srna, "number_cuts", cuts_default, 0, 1000, "Number of Cuts", "", 0, 64);
+	prop = RNA_def_int(ot->srna, "number_cuts", cuts_default, 0, 1000, "Number of Cuts", "", cuts_min, 64);
 	RNA_def_property_flag(prop, PROP_SKIP_SAVE);
 
 	RNA_def_enum(ot->srna, "interpolation", prop_subd_edgering_types, SUBD_RING_INTERP_PATH,
@@ -248,7 +248,7 @@ void MESH_OT_subdivide_edgering(wmOperatorType *ot)
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 
 	/* properties */
-	mesh_operator_edgering_props(ot, 10);
+	mesh_operator_edgering_props(ot, 1, 10);
 }
 
 
@@ -5447,7 +5447,7 @@ void MESH_OT_bridge_edge_loops(wmOperatorType *ot)
 	RNA_def_float(ot->srna, "merge_factor", 0.5f, 0.0f, 1.0f, "Merge Factor", "", 0.0f, 1.0f);
 	RNA_def_int(ot->srna, "twist_offset", 0, -1000, 1000, "Twist", "Twist offset for closed loops", -1000, 1000);
 
-	mesh_operator_edgering_props(ot, 0);
+	mesh_operator_edgering_props(ot, 0, 0);
 }
 
 static int edbm_wireframe_exec(bContext *C, wmOperator *op)
diff --git a/source/blender/editors/mesh/mesh_data.c b/source/blender/editors/mesh/mesh_data.c
index 772bb1bd308..737c8ac665d 100644
--- a/source/blender/editors/mesh/mesh_data.c
+++ b/source/blender/editors/mesh/mesh_data.c
@@ -252,7 +252,7 @@ void ED_mesh_uv_loop_reset(struct bContext *C, struct Mesh *me)
 {
 	/* could be ldata or pdata */
 	CustomData *pdata = GET_CD_DATA(me, pdata);
-	const int layernum = CustomData_get_active_layer_index(pdata, CD_MTEXPOLY);
+	const int layernum = CustomData_get_active_layer(pdata, CD_MTEXPOLY);
 	ED_mesh_uv_loop_reset_ex(me, layernum);
 	
 	WM_event_add_notifier(C, NC_GEOM | ND_DATA, me);
@@ -464,6 +464,20 @@ int ED_mesh_color_add(Mesh *me, const char *name, const bool active_set)
 	return layernum;
 }
 
+bool ED_mesh_color_ensure(struct Mesh *me, const char *name)
+{
+	BLI_assert(me->edit_btmesh == NULL);
+
+	if (!me->mloopcol && me->totloop) {
+		CustomData_add_layer_named(&me->ldata, CD_MLOOPCOL, CD_DEFAULT, NULL, me->totloop, name);
+		BKE_mesh_update_customdata_pointers(me, true);
+	}
+
+	DAG_id_tag_update(&me->id, 0);
+
+	return (me->mloopcol != NULL);
+}
+
 bool ED_mesh_color_remove_index(Mesh *me, const int n)
 {
 	CustomData *ldata = GET_CD_DATA(me, ldata);
diff --git a/source/blender/editors/object/object_add.c b/source/blender/editors/object/object_add.c
index b5a9c4e9e5b..74da6817185 100644
--- a/source/blender/editors/object/object_add.c
+++ b/source/blender/editors/object/object_add.c
@@ -1344,89 +1344,87 @@ static void make_object_duplilist_real(bContext *C, Scene *scene, Base *base,
                                        const bool use_hierarchy)
 {
 	Main *bmain = CTX_data_main(C);
-	ListBase *lb;
+	ListBase *lb_duplis;
 	DupliObject *dob;
-	GHash *dupli_gh = NULL, *parent_gh = NULL;
-	Object *object;
+	GHash *dupli_gh, *parent_gh = NULL;
 
-	if (!(base->object->transflag & OB_DUPLI))
+	if (!(base->object->transflag & OB_DUPLI)) {
 		return;
+	}
 
-	lb = object_duplilist(bmain->eval_ctx, scene, base->object);
+	lb_duplis = object_duplilist(bmain->eval_ctx, scene, base->object);
 
-	if (use_hierarchy || use_base_parent) {
-		dupli_gh = BLI_ghash_ptr_new(__func__);
-		if (use_hierarchy) {
-			if (base->object->transflag & OB_DUPLIGROUP) {
-				parent_gh = BLI_ghash_new(dupliobject_group_hash, dupliobject_group_cmp, __func__);
-			}
-			else {
-				parent_gh = BLI_ghash_new(dupliobject_hash, dupliobject_cmp, __func__);
-			}
+	dupli_gh = BLI_ghash_ptr_new(__func__);
+	if (use_hierarchy) {
+		if (base->object->transflag & OB_DUPLIGROUP) {
+			parent_gh = BLI_ghash_new(dupliobject_group_hash, dupliobject_group_cmp, __func__);
+		}
+		else {
+			parent_gh = BLI_ghash_new(dupliobject_hash, dupliobject_cmp, __func__);
 		}
 	}
 
-	for (dob = lb->first; dob; dob = dob->next) {
-		Base *basen;
-		Object *ob = ID_NEW_SET(dob->ob, BKE_object_copy(bmain, dob->ob));
+	for (dob = lb_duplis->first; dob; dob = dob->next) {
+		Object *ob_src = dob->ob;
+		Object *ob_dst = ID_NEW_SET(dob->ob, BKE_object_copy(bmain, ob_src));
+		Base *base_dst;
 
 		/* font duplis can have a totcol without material, we get them from parent
 		 * should be implemented better...
 		 */
-		if (ob->mat == NULL) ob->totcol = 0;
+		if (ob_dst->mat == NULL) {
+			ob_dst->totcol = 0;
+		}
 
-		basen = MEM_dupallocN(base);
-		basen->flag &= ~(OB_FROMDUPLI | OB_FROMGROUP);
-		ob->flag = basen->flag;
-		basen->lay = base->lay;
-		BLI_addhead(&scene->base, basen);   /* addhead: othwise eternal loop */
-		basen->object = ob;
+		base_dst = MEM_dupallocN(base);
+		base_dst->flag &= ~(OB_FROMDUPLI | OB_FROMGROUP);
+		ob_dst->flag = base_dst->flag;
+		base_dst->lay = base->lay;
+		BLI_addhead(&scene->base, base_dst);   /* addhead: othwise eternal loop */
+		base_dst->object = ob_dst;
 
 		/* make sure apply works */
-		BKE_animdata_free(&ob->id, true);
-		ob->adt = NULL;
+		BKE_animdata_free(&ob_dst->id, true);
+		ob_dst->adt = NULL;
 
 		/* Proxies are not to be copied. */
-		ob->proxy_from = NULL;
-		ob->proxy_group = NULL;
-		ob->proxy = NULL;
+		ob_dst->proxy_from = NULL;
+		ob_dst->proxy_group = NULL;
+		ob_dst->proxy = NULL;
 
-		ob->parent = NULL;
-		BKE_constraints_free(&ob->constraints);
-		ob->curve_cache = NULL;
-		ob->transflag &= ~OB_DUPLI;
-		ob->lay = base->lay;
+		ob_dst->parent = NULL;
+		BKE_constraints_free(&ob_dst->constraints);
+		ob_dst->curve_cache = NULL;
+		ob_dst->transflag &= ~OB_DUPLI;
+		ob_dst->lay = base->lay;
 
-		copy_m4_m4(ob->obmat, dob->mat);
-		BKE_object_apply_mat4(ob, ob->obmat, false, false);
+		copy_m4_m4(ob_dst->obmat, dob->mat);
+		BKE_object_apply_mat4(ob_dst, ob_dst->obmat, false, false);
 
-		if (dupli_gh) {
-			BLI_ghash_insert(dupli_gh, dob, ob);
-		}
+		BLI_ghash_insert(dupli_gh, dob, ob_dst);
 		if (parent_gh) {
 			void **val;
 			/* Due to nature of hash/comparison of this ghash, a lot of duplis may be considered as 'the same',
 			 * this avoids trying to insert same key several time and raise asserts in debug builds... */
 			if (!BLI_ghash_ensure_p(parent_gh, dob, &val)) {
-				*val = ob;
+				*val = ob_dst;
 			}
 		}
+	}
+
+	for (dob = lb_duplis->first; dob; dob = dob->next) {
+		Object *ob_src = dob->ob;
+		Object *ob_dst = BLI_ghash_lookup(dupli_gh, dob);
 
 		/* Remap new object to itself, and clear again newid pointer of orig object. */
-		BKE_libblock_relink_to_newid(&ob->id);
-		set_sca_new_poins_ob(ob);
-		BKE_id_clear_newpoin(&dob->ob->id);
+		BKE_libblock_relink_to_newid(&ob_dst->id);
+		set_sca_new_poins_ob(ob_dst);
 
-		DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
-	}
+		DAG_id_tag_update(&ob_dst->id, OB_RECALC_DATA);
 
-	if (use_hierarchy) {
-		for (dob = lb->first; dob; dob = dob->next) {
+		if (use_hierarchy) {
 			/* original parents */
-			Object *ob_src =     dob->ob;
 			Object *ob_src_par = ob_src->parent;
-
-			Object *ob_dst =     BLI_ghash_lookup(dupli_gh, dob);
 			Object *ob_dst_par = NULL;
 
 			/* find parent that was also made real */
@@ -1437,8 +1435,8 @@ static void make_object_duplilist_real(bContext *C, Scene *scene, Base *base,
 				dob_key.ob = ob_src_par;
 				if (base->object->transflag & OB_DUPLIGROUP) {
 					memcpy(&dob_key.persistent_id[1],
-						   &dob->persistent_id[1],
-						   sizeof(dob->persistent_id[1]) * (MAX_DUPLI_RECUR - 1));
+					       &dob->persistent_id[1],
+					       sizeof(dob->persistent_id[1]) * (MAX_DUPLI_RECUR - 1));
 				}
 				else {
 					dob_key.persistent_id[0] = dob->persistent_id[0];
@@ -1462,49 +1460,42 @@ static void make_object_duplilist_real(bContext *C, Scene *scene, Base *base,
 				ob_dst->parent = base->object;
 				ob_dst->partype = PAROBJECT;
 			}
-
-			if (ob_dst->parent) {
-				/* note, this may be the parent of other objects, but it should
-				 * still work out ok */
-				BKE_object_apply_mat4(ob_dst, dob->mat, false, true);
-
-				/* to set ob_dst->orig and in case theres any other discrepicies */
-				DAG_id_tag_update(&ob_dst->id, OB_RECALC_OB);
-			}
 		}
-	}
-	else if (use_base_parent) {
-		/* since we are ignoring the internal hierarchy - parent all to the
-		 * base object */
-		for (dob = lb->first; dob; dob = dob->next) {
-			/* original parents */
-			Object *ob_dst = BLI_ghash_lookup(dupli_gh, dob);
-
+		else if (use_base_parent) {
+			/* since we are ignoring the internal hierarchy - parent all to the
+			 * base object */
 			ob_dst->parent = base->object;
 			ob_dst->partype = PAROBJECT;
+		}
 
-			/* similer to the code above, see comments */
+		if (ob_dst->parent) {
+			/* note, this may be the parent of other objects, but it should
+			 * still work out ok */
 			BKE_object_apply_mat4(ob_dst, dob->mat, false, true);
+
+			/* to set ob_dst->orig and in case theres any other discrepicies */
 			DAG_id_tag_update(&ob_dst->id, OB_RECALC_OB);
 		}
 	}
 
 	if (base->object->transflag & OB_DUPLIGROUP && base->object->dup_group) {
-		for (object = bmain->object.first; object; object = object->id.next) {
-			if (object->proxy_group == base->object) {
-				object->proxy = NULL;
-				object->proxy_from = NULL;
-				DAG_id_tag_update(&object->id, OB_RECALC_OB);
+		for (Object *ob = bmain->object.first; ob; ob = ob->id.next) {
+			if (ob->proxy_group == base->object) {
+				ob->proxy = NULL;
+				ob->proxy_from = NULL;
+				DAG_id_tag_update(&ob->id, OB_RECALC_OB);
 			}
 		}
 	}
 
-	if (dupli_gh)
-		BLI_ghash_free(dupli_gh, NULL, NULL);
-	if (parent_gh)
+	BLI_ghash_free(dupli_gh, NULL, NULL);
+	if (parent_gh) {
 		BLI_ghash_free(parent_gh, NULL, NULL);
+	}
 
-	free_object_duplilist(lb);
+	free_object_duplilist(lb_duplis);
+
+	BKE_main_id_clear_newpoins(bmain);
 
 	base->object->transflag &= ~OB_DUPLI;
 }
@@ -1682,7 +1673,7 @@ static int convert_exec(bContext *C, wmOperator *op)
 			 * However, changing this is more design than bugfix, not to mention convoluted code below,
 			 * so that will be for later.
 			 * But at the very least, do not do that with linked IDs! */
-			if ((ID_IS_LINKED_DATABLOCK(ob) || ID_IS_LINKED_DATABLOCK(ob->data)) && !keep_original) {
+			if ((ID_IS_LINKED_DATABLOCK(ob) || (ob->data && ID_IS_LINKED_DATABLOCK(ob->data))) && !keep_original) {
 				keep_original = true;
 				BKE_reportf(op->reports, RPT_INFO,
 				            "Converting some linked object/object data, enforcing 'Keep Original' option to True");
@@ -2198,6 +2189,11 @@ static Base *object_add_duplicate_internal(Main *bmain, Scene *scene, Base *base
 		if (didit) {
 			Key *key = BKE_key_from_object(obn);
 
+			Key *oldkey = BKE_key_from_object(ob);
+			if (oldkey != NULL) {
+				ID_NEW_SET(oldkey, key);
+			}
+
 			if (dupflag & USER_DUP_ACT) {
 				bActuator *act;
 
diff --git a/source/blender/editors/object/object_bake_api.c b/source/blender/editors/object/object_bake_api.c
index ad43c48f0b9..122330f7ede 100644
--- a/source/blender/editors/object/object_bake_api.c
+++ b/source/blender/editors/object/object_bake_api.c
@@ -625,7 +625,9 @@ static Mesh *bake_mesh_new_from_object(Main *bmain, Scene *scene, Object *ob)
 		ED_object_editmode_load(ob);
 
 	Mesh *me = BKE_mesh_new_from_object(bmain, scene, ob, 1, 2, 0, 0);
-	BKE_mesh_split_faces(me, true);
+	if (me->flag & ME_AUTOSMOOTH) {
+		BKE_mesh_split_faces(me, true);
+	}
 
 	return me;
 }
@@ -1029,7 +1031,7 @@ cage_cleanup:
 						}
 						else {
 							/* if everything else fails, use the material index */
-							char tmp[4];
+							char tmp[5];
 							sprintf(tmp, "%d", i % 1000);
 							BLI_path_suffix(name, FILE_MAX, tmp, "_");
 						}
@@ -1159,7 +1161,7 @@ static void bake_init_api_data(wmOperator *op, bContext *C, BakeAPIRender *bkr)
 
 	bkr->result = OPERATOR_CANCELLED;
 
-	bkr->render = RE_NewRender(bkr->scene->id.name);
+	bkr->render = RE_NewSceneRender(bkr->scene);
 
 	/* XXX hack to force saving to always be internal. Whether (and how) to support
 	 * external saving will be addressed later */
diff --git a/source/blender/editors/object/object_edit.c b/source/blender/editors/object/object_edit.c
index edd7b5dd1be..4a96a2e2200 100644
--- a/source/blender/editors/object/object_edit.c
+++ b/source/blender/editors/object/object_edit.c
@@ -773,9 +773,9 @@ static void copymenu_logicbricks(Scene *scene, View3D *v3d, Object *ob)
 				
 				/* now copy it, this also works without logicbricks! */
 				clear_sca_new_poins_ob(ob);
-				copy_sensors(&base->object->sensors, &ob->sensors);
-				copy_controllers(&base->object->controllers, &ob->controllers);
-				copy_actuators(&base->object->actuators, &ob->actuators);
+				copy_sensors(&base->object->sensors, &ob->sensors, 0);
+				copy_controllers(&base->object->controllers, &ob->controllers, 0);
+				copy_actuators(&base->object->actuators, &ob->actuators, 0);
 				set_sca_new_poins_ob(base->object);
 				
 				/* some menu settings */
@@ -934,7 +934,7 @@ static void copy_attr(Main *bmain, Scene *scene, View3D *v3d, short event)
 						base->object->collision_boundtype = ob->collision_boundtype;
 					}
 					base->object->margin = ob->margin;
-					base->object->bsoft = copy_bulletsoftbody(ob->bsoft);
+					base->object->bsoft = copy_bulletsoftbody(ob->bsoft, 0);
 
 				}
 				else if (event == 17) {   /* tex space */
@@ -1042,7 +1042,7 @@ static void copy_attr(Main *bmain, Scene *scene, View3D *v3d, short event)
 					base->object->softflag = ob->softflag;
 					if (base->object->soft) sbFree(base->object->soft);
 					
-					base->object->soft = copy_softbody(ob->soft, false);
+					base->object->soft = copy_softbody(ob->soft, 0);
 
 					if (!modifiers_findByType(base->object, eModifierType_Softbody)) {
 						BLI_addhead(&base->object->modifiers, modifier_new(eModifierType_Softbody));
@@ -1158,13 +1158,16 @@ void ED_object_check_force_modifiers(Main *bmain, Scene *scene, Object *object)
 
 	/* add/remove modifier as needed */
 	if (!md) {
-		if (pd && (pd->shape == PFIELD_SHAPE_SURFACE) && ELEM(pd->forcefield, PFIELD_GUIDE, PFIELD_TEXTURE) == 0)
-			if (ELEM(object->type, OB_MESH, OB_SURF, OB_FONT, OB_CURVE))
+		if (pd && (pd->shape == PFIELD_SHAPE_SURFACE) && !ELEM(pd->forcefield, 0, PFIELD_GUIDE, PFIELD_TEXTURE)) {
+			if (ELEM(object->type, OB_MESH, OB_SURF, OB_FONT, OB_CURVE)) {
 				ED_object_modifier_add(NULL, bmain, scene, object, NULL, eModifierType_Surface);
+			}
+		}
 	}
 	else {
-		if (!pd || pd->shape != PFIELD_SHAPE_SURFACE || pd->forcefield != PFIELD_FORCE)
+		if (!pd || (pd->shape != PFIELD_SHAPE_SURFACE) || ELEM(pd->forcefield, 0, PFIELD_GUIDE, PFIELD_TEXTURE)) {
 			ED_object_modifier_remove(NULL, bmain, object, md);
+		}
 	}
 }
 
@@ -2106,9 +2109,9 @@ static int logicbricks_copy_exec(bContext *C, wmOperator *UNUSED(op))
 		
 			/* now copy it, this also works without logicbricks! */
 			clear_sca_new_poins_ob(ob);
-			copy_sensors(&ob_iter->sensors, &ob->sensors);
-			copy_controllers(&ob_iter->controllers, &ob->controllers);
-			copy_actuators(&ob_iter->actuators, &ob->actuators);
+			copy_sensors(&ob_iter->sensors, &ob->sensors, 0);
+			copy_controllers(&ob_iter->controllers, &ob->controllers, 0);
+			copy_actuators(&ob_iter->actuators, &ob->actuators, 0);
 			set_sca_new_poins_ob(ob_iter);
 		
 			/* some menu settings */
@@ -2169,7 +2172,7 @@ static int game_physics_copy_exec(bContext *C, wmOperator *UNUSED(op))
 			copy_v3_v3(ob_iter->anisotropicFriction, ob->anisotropicFriction);
 			ob_iter->collision_boundtype = ob->collision_boundtype;
 			ob_iter->margin = ob->margin;
-			ob_iter->bsoft = copy_bulletsoftbody(ob->bsoft);
+			ob_iter->bsoft = copy_bulletsoftbody(ob->bsoft, 0);
 			if (ob->restrictflag & OB_RESTRICT_RENDER) 
 				ob_iter->restrictflag |= OB_RESTRICT_RENDER;
 			else
diff --git a/source/blender/editors/object/object_relations.c b/source/blender/editors/object/object_relations.c
index 3284af2df69..d5b516257a1 100644
--- a/source/blender/editors/object/object_relations.c
+++ b/source/blender/editors/object/object_relations.c
@@ -1581,13 +1581,13 @@ static int make_links_data_exec(bContext *C, wmOperator *op)
 						DAG_id_tag_update(&ob_dst->id, OB_RECALC_DATA);
 						break;
 					case MAKE_LINKS_ANIMDATA:
-						BKE_animdata_copy_id((ID *)ob_dst, (ID *)ob_src, false);
+						BKE_animdata_copy_id(bmain, (ID *)ob_dst, (ID *)ob_src, false);
 						if (ob_dst->data && ob_src->data) {
 							if (ID_IS_LINKED_DATABLOCK(obdata_id)) {
 								is_lib = true;
 								break;
 							}
-							BKE_animdata_copy_id((ID *)ob_dst->data, (ID *)ob_src->data, false);
+							BKE_animdata_copy_id(bmain, (ID *)ob_dst->data, (ID *)ob_src->data, false);
 						}
 						DAG_id_tag_update(&ob_dst->id, OB_RECALC_OB | OB_RECALC_DATA | OB_RECALC_TIME);
 						break;
@@ -2137,7 +2137,9 @@ void ED_object_single_users(Main *bmain, Scene *scene, const bool full, const bo
 			IDP_RelinkProperty(scene->gpd->id.properties);
 		}
 
-		IDP_RelinkProperty(scene->world->id.properties);
+		if (scene->world) {
+			IDP_RelinkProperty(scene->world->id.properties);
+		}
 
 		if (scene->clip) {
 			IDP_RelinkProperty(scene->clip->id.properties);
diff --git a/source/blender/editors/object/object_transform.c b/source/blender/editors/object/object_transform.c
index 4d7d7df0d2f..6491da4c23c 100644
--- a/source/blender/editors/object/object_transform.c
+++ b/source/blender/editors/object/object_transform.c
@@ -414,7 +414,10 @@ static void ignore_parent_tx(Main *bmain, Scene *scene, Object *ob)
 	}
 }
 
-static int apply_objects_internal(bContext *C, ReportList *reports, bool apply_loc, bool apply_rot, bool apply_scale)
+static int apply_objects_internal(
+        bContext *C, ReportList *reports,
+        bool apply_loc, bool apply_rot, bool apply_scale,
+        bool do_props)
 {
 	Main *bmain = CTX_data_main(C);
 	Scene *scene = CTX_data_scene(C);
@@ -531,7 +534,7 @@ static int apply_objects_internal(bContext *C, ReportList *reports, bool apply_l
 			BKE_mesh_calc_normals(me);
 		}
 		else if (ob->type == OB_ARMATURE) {
-			ED_armature_apply_transform(ob, mat);
+			ED_armature_apply_transform(ob, mat, do_props);
 		}
 		else if (ob->type == OB_LATTICE) {
 			Lattice *lt = ob->data;
@@ -540,12 +543,12 @@ static int apply_objects_internal(bContext *C, ReportList *reports, bool apply_l
 		}
 		else if (ob->type == OB_MBALL) {
 			MetaBall *mb = ob->data;
-			BKE_mball_transform(mb, mat);
+			BKE_mball_transform(mb, mat, do_props);
 		}
 		else if (ELEM(ob->type, OB_CURVE, OB_SURF)) {
 			Curve *cu = ob->data;
 			scale = mat3_to_scale(rsmat);
-			BKE_curve_transform_ex(cu, mat, true, scale);
+			BKE_curve_transform_ex(cu, mat, true, do_props, scale);
 		}
 		else if (ob->type == OB_FONT) {
 			Curve *cu = ob->data;
@@ -561,7 +564,9 @@ static int apply_objects_internal(bContext *C, ReportList *reports, bool apply_l
 				tb->h *= scale;
 			}
 
-			cu->fsize *= scale;
+			if (do_props) {
+				cu->fsize *= scale;
+			}
 		}
 		else if (ob->type == OB_CAMERA) {
 			MovieClip *clip = BKE_object_movieclip_get(scene, ob, false);
@@ -677,9 +682,10 @@ static int object_transform_apply_exec(bContext *C, wmOperator *op)
 	const bool loc = RNA_boolean_get(op->ptr, "location");
 	const bool rot = RNA_boolean_get(op->ptr, "rotation");
 	const bool sca = RNA_boolean_get(op->ptr, "scale");
+	const bool do_props = RNA_boolean_get(op->ptr, "properties");
 
 	if (loc || rot || sca) {
-		return apply_objects_internal(C, op->reports, loc, rot, sca);
+		return apply_objects_internal(C, op->reports, loc, rot, sca, do_props);
 	}
 	else {
 		/* allow for redo */
@@ -704,6 +710,8 @@ void OBJECT_OT_transform_apply(wmOperatorType *ot)
 	RNA_def_boolean(ot->srna, "location", 0, "Location", "");
 	RNA_def_boolean(ot->srna, "rotation", 0, "Rotation", "");
 	RNA_def_boolean(ot->srna, "scale", 0, "Scale", "");
+	RNA_def_boolean(ot->srna, "properties", true, "Apply Properties",
+	                "Modify properties such as curve vertex radius, font size and bone envelope");
 }
 
 /********************* Set Object Center ************************/
@@ -712,7 +720,8 @@ enum {
 	GEOMETRY_TO_ORIGIN = 0,
 	ORIGIN_TO_GEOMETRY,
 	ORIGIN_TO_CURSOR,
-	ORIGIN_TO_CENTER_OF_MASS
+	ORIGIN_TO_CENTER_OF_MASS_SURFACE,
+	ORIGIN_TO_CENTER_OF_MASS_VOLUME,
 };
 
 static int object_origin_set_exec(bContext *C, wmOperator *op)
@@ -866,10 +875,21 @@ static int object_origin_set_exec(bContext *C, wmOperator *op)
 			if (obedit == NULL && ob->type == OB_MESH) {
 				Mesh *me = ob->data;
 
-				if (centermode == ORIGIN_TO_CURSOR) { /* done */ }
-				else if (centermode == ORIGIN_TO_CENTER_OF_MASS)    { BKE_mesh_center_centroid(me, cent); }
-				else if (around == V3D_AROUND_CENTER_MEAN)          { BKE_mesh_center_median(me, cent); }
-				else                                                { BKE_mesh_center_bounds(me, cent); }
+				if (centermode == ORIGIN_TO_CURSOR) {
+					/* done */
+				}
+				else if (centermode == ORIGIN_TO_CENTER_OF_MASS_SURFACE) {
+					BKE_mesh_center_of_surface(me, cent);
+				}
+				else if (centermode == ORIGIN_TO_CENTER_OF_MASS_VOLUME) {
+					BKE_mesh_center_of_volume(me, cent);
+				}
+				else if (around == V3D_AROUND_CENTER_MEAN) {
+					BKE_mesh_center_median(me, cent);
+				}
+				else {
+					BKE_mesh_center_bounds(me, cent);
+				}
 
 				negate_v3_v3(cent_neg, cent);
 				BKE_mesh_translate(me, cent_neg, 1);
@@ -923,8 +943,8 @@ static int object_origin_set_exec(bContext *C, wmOperator *op)
 
 					cent[2] = 0.0f;
 
-					cu->xof = cu->xof - (cent[0] / cu->fsize);
-					cu->yof = cu->yof - (cent[1] / cu->fsize);
+					cu->xof = cu->xof - cent[0];
+					cu->yof = cu->yof - cent[1];
 
 					tot_change++;
 					cu->id.tag |= LIB_TAG_DOIT;
@@ -1077,11 +1097,14 @@ void OBJECT_OT_origin_set(wmOperatorType *ot)
 	static EnumPropertyItem prop_set_center_types[] = {
 		{GEOMETRY_TO_ORIGIN, "GEOMETRY_ORIGIN", 0, "Geometry to Origin", "Move object geometry to object origin"},
 		{ORIGIN_TO_GEOMETRY, "ORIGIN_GEOMETRY", 0, "Origin to Geometry",
-		                     "Move object origin to center of object geometry"},
+		 "Calculate the center of geometry based on the current pivot point (median, otherwise bounding-box)"},
 		{ORIGIN_TO_CURSOR, "ORIGIN_CURSOR", 0, "Origin to 3D Cursor",
-		                   "Move object origin to position of the 3D cursor"},
-		{ORIGIN_TO_CENTER_OF_MASS, "ORIGIN_CENTER_OF_MASS", 0, "Origin to Center of Mass",
-		                           "Move object origin to the object center of mass (assuming uniform density)"},
+		 "Move object origin to position of the 3D cursor"},
+		/* Intentional naming mismatch since some scripts refer to this. */
+		{ORIGIN_TO_CENTER_OF_MASS_SURFACE, "ORIGIN_CENTER_OF_MASS", 0, "Origin to Center of Mass (Surface)",
+		 "Calculate the center of mass from the surface area"},
+		{ORIGIN_TO_CENTER_OF_MASS_VOLUME, "ORIGIN_CENTER_OF_VOLUME", 0, "Origin to Center of Mass (Volume)",
+		 "Calculate the center of mass from the volume (must be manifold geometry with consistent normals)"},
 		{0, NULL, 0, NULL, NULL}
 	};
 	
diff --git a/source/blender/editors/object/object_vgroup.c b/source/blender/editors/object/object_vgroup.c
index 3c406764157..584176e4b5d 100644
--- a/source/blender/editors/object/object_vgroup.c
+++ b/source/blender/editors/object/object_vgroup.c
@@ -50,7 +50,7 @@
 #include "BLI_blenlib.h"
 #include "BLI_utildefines.h"
 #include "BLI_linklist_stack.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 
 
 #include "BKE_context.h"
@@ -238,6 +238,9 @@ bool ED_vgroup_parray_alloc(ID *id, MDeformVert ***dvert_arr, int *dvert_tot, co
 				}
 				return false;
 			}
+
+			default:
+				break;
 		}
 	}
 
@@ -1712,17 +1715,11 @@ static void vgroup_invert_subset(Object *ob,
 	}
 }
 
-enum {
-	WEIGHT_SMOOTH_ALL = -1,
-	WEIGHT_SMOOTH_DESELECT = false,
-	WEIGHT_SMOOTH_SELECT = true,
-};
-
 static void vgroup_smooth_subset(
         Object *ob, const bool *vgroup_validmap, const int vgroup_tot,
         const int subset_count,
         const float fac, const int repeat,
-        const float fac_expand, const int source)
+        const float fac_expand)
 {
 	const float ifac = 1.0f - fac;
 	MDeformVert **dvert_array = NULL;
@@ -1730,6 +1727,8 @@ static void vgroup_smooth_subset(
 	int *vgroup_subset_map = BLI_array_alloca(vgroup_subset_map, subset_count);
 	float *vgroup_subset_weights = BLI_array_alloca(vgroup_subset_weights, subset_count);
 	const bool use_mirror = (ob->type == OB_MESH) ? (((Mesh *)ob->data)->editflag & ME_EDIT_MIRROR_X) != 0 : false;
+	const bool use_select = vertex_group_use_vert_sel(ob);
+	const bool use_hide = use_select;
 
 	const int    expand_sign = signum_i(fac_expand);
 	const float  expand = fabsf(fac_expand);
@@ -1773,19 +1772,26 @@ static void vgroup_smooth_subset(
 	verts_used = MEM_mallocN(sizeof(*verts_used) * dvert_tot, __func__);
 	STACK_INIT(verts_used, dvert_tot);
 
+#define IS_BM_VERT_READ(v) \
+	(use_hide ? (BM_elem_flag_test(v, BM_ELEM_HIDDEN) == 0) : true)
+#define IS_BM_VERT_WRITE(v) \
+	(use_select ? (BM_elem_flag_test(v, BM_ELEM_SELECT) != 0) : true)
+
+#define IS_ME_VERT_READ(v) \
+	(use_hide ? (((v)->flag & ME_HIDE) == 0) : true)
+#define IS_ME_VERT_WRITE(v) \
+	(use_select ? (((v)->flag & SELECT) != 0) : true)
 
 	/* initialize used verts */
 	if (bm) {
 		for (int i = 0; i < dvert_tot; i++) {
 			BMVert *v = BM_vert_at_index(bm, i);
-			if (BM_elem_flag_test(v, BM_ELEM_SELECT)) {
+			if (IS_BM_VERT_WRITE(v)) {
 				BMIter eiter;
 				BMEdge *e;
 				BM_ITER_ELEM (e, &eiter, v, BM_EDGES_OF_VERT) {
 					BMVert *v_other = BM_edge_other_vert(e, v);
-					if ((source == WEIGHT_SMOOTH_ALL) ||
-					    (source == (BM_elem_flag_test(v_other, BM_ELEM_SELECT) != 0)))
-					{
+					if (IS_BM_VERT_READ(v_other)) {
 						STACK_PUSH(verts_used, i);
 						break;
 					}
@@ -1795,13 +1801,12 @@ static void vgroup_smooth_subset(
 	}
 	else {
 		for (int i = 0; i < dvert_tot; i++) {
-			MVert *v = &me->mvert[i];
-			if (v->flag & SELECT) {
+			const MVert *v = &me->mvert[i];
+			if (IS_ME_VERT_WRITE(v)) {
 				for (int j = 0; j < emap[i].count; j++) {
-					MVert *v_other = &me->mvert[emap[i].indices[j]];
-					if ((source == WEIGHT_SMOOTH_ALL) ||
-					    (source == ((v_other->flag & SELECT) != 0)))
-					{
+					const MEdge *e = &me->medge[emap[i].indices[j]];
+					const MVert *v_other = &me->mvert[(e->v1 == i) ? e->v2 : e->v1];
+					if (IS_ME_VERT_READ(v_other)) {
 						STACK_PUSH(verts_used, i);
 						break;
 					}
@@ -1854,13 +1859,11 @@ static void vgroup_smooth_subset(
 					BMEdge *e;
 
 					/* checked already */
-					BLI_assert(BM_elem_flag_test(v, BM_ELEM_SELECT));
+					BLI_assert(IS_BM_VERT_WRITE(v));
 
 					BM_ITER_ELEM (e, &eiter, v, BM_EDGES_OF_VERT) {
 						BMVert *v_other = BM_edge_other_vert(e, v);
-						if ((source == WEIGHT_SMOOTH_ALL) ||
-						    (source == (BM_elem_flag_test(v_other, BM_ELEM_SELECT) != 0)))
-						{
+						if (IS_BM_VERT_READ(v_other)) {
 							const int i_other = BM_elem_index_get(v_other);
 
 							WEIGHT_ACCUMULATE;
@@ -1871,16 +1874,14 @@ static void vgroup_smooth_subset(
 					int j;
 
 					/* checked already */
-					BLI_assert(me->mvert[i].flag & SELECT);
+					BLI_assert(IS_ME_VERT_WRITE(&me->mvert[i]));
 
 					for (j = 0; j < emap[i].count; j++) {
 						MEdge *e = &me->medge[emap[i].indices[j]];
 						const int i_other = (e->v1 == i ? e->v2 : e->v1);
 						MVert *v_other = &me->mvert[i_other];
 
-						if ((source == WEIGHT_SMOOTH_ALL) ||
-						    (source == ((v_other->flag & SELECT) != 0)))
-						{
+						if (IS_ME_VERT_READ(v_other)) {
 							WEIGHT_ACCUMULATE;
 						}
 					}
@@ -1904,6 +1905,11 @@ static void vgroup_smooth_subset(
 		ED_vgroup_parray_from_weight_array(dvert_array, dvert_tot, weight_accum_prev, def_nr, true);
 	}
 
+#undef IS_BM_VERT_READ
+#undef IS_BM_VERT_WRITE
+#undef IS_ME_VERT_READ
+#undef IS_ME_VERT_WRITE
+
 	MEM_freeN(weight_accum_curr);
 	MEM_freeN(weight_accum_prev);
 	MEM_freeN(verts_used);
@@ -2497,7 +2503,7 @@ static int UNUSED_FUNCTION(vertex_group_poll_edit) (bContext *C)
 }
 
 /* editmode _or_ weight paint vertex sel */
-static int vertex_group_vert_select_poll_ex(bContext *C, const short ob_type_flag)
+static int vertex_group_vert_poll_ex(bContext *C, const bool needs_select, const short ob_type_flag)
 {
 	Object *ob = ED_object_context(C);
 	ID *data = (ob) ? ob->data : NULL;
@@ -2513,12 +2519,17 @@ static int vertex_group_vert_select_poll_ex(bContext *C, const short ob_type_fla
 		return true;
 	}
 	else if (ob->mode & OB_MODE_WEIGHT_PAINT) {
-		if (BKE_object_is_in_wpaint_select_vert(ob)) {
-			return true;
+		if (needs_select) {
+			if (BKE_object_is_in_wpaint_select_vert(ob)) {
+				return true;
+			}
+			else {
+				CTX_wm_operator_poll_msg_set(C, "Vertex select needs to be enabled in weight paint mode");
+				return false;
+			}
 		}
 		else {
-			CTX_wm_operator_poll_msg_set(C, "Vertex select needs to be enabled in weight paint mode");
-			return false;
+			return true;
 		}
 	}
 	else {
@@ -2526,15 +2537,31 @@ static int vertex_group_vert_select_poll_ex(bContext *C, const short ob_type_fla
 	}
 }
 
+#if 0
+static int vertex_group_vert_poll(bContext *C)
+{
+	return vertex_group_vert_poll_ex(C, false, 0);
+}
+#endif
+
+
+static int vertex_group_mesh_vert_poll(bContext *C)
+{
+	return vertex_group_vert_poll_ex(C, false, (1 << OB_MESH));
+}
+
 static int vertex_group_vert_select_poll(bContext *C)
 {
-	return vertex_group_vert_select_poll_ex(C, 0);
+	return vertex_group_vert_poll_ex(C, true, 0);
 }
 
+#if 0
 static int vertex_group_mesh_vert_select_poll(bContext *C)
 {
-	return vertex_group_vert_select_poll_ex(C, (1 << OB_MESH));
+	return vertex_group_vert_poll_ex(C, true, (1 << OB_MESH));
 }
+#endif
+
 
 /* editmode _or_ weight paint vertex sel and active group unlocked */
 static int vertex_group_vert_select_unlocked_poll(bContext *C)
@@ -3081,13 +3108,12 @@ static int vertex_group_smooth_exec(bContext *C, wmOperator *op)
 	const float fac = RNA_float_get(op->ptr, "factor");
 	const int repeat = RNA_int_get(op->ptr, "repeat");
 	eVGroupSelect subset_type  = RNA_enum_get(op->ptr, "group_select_mode");
-	const int source = RNA_enum_get(op->ptr, "source");
 	const float fac_expand = RNA_float_get(op->ptr, "expand");
 
 	int subset_count, vgroup_tot;
 
 	const bool *vgroup_validmap = BKE_object_defgroup_subset_from_select_type(ob, subset_type, &vgroup_tot, &subset_count);
-	vgroup_smooth_subset(ob, vgroup_validmap, vgroup_tot, subset_count, fac, repeat, fac_expand, source);
+	vgroup_smooth_subset(ob, vgroup_validmap, vgroup_tot, subset_count, fac, repeat, fac_expand);
 	MEM_freeN((void *)vgroup_validmap);
 
 	DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
@@ -3099,20 +3125,13 @@ static int vertex_group_smooth_exec(bContext *C, wmOperator *op)
 
 void OBJECT_OT_vertex_group_smooth(wmOperatorType *ot)
 {
-	static EnumPropertyItem smooth_source_item[] = {
-		{WEIGHT_SMOOTH_ALL, "ALL", 0, "All", ""},
-		{WEIGHT_SMOOTH_SELECT, "SELECT", 0, "Only Selected", ""},
-		{WEIGHT_SMOOTH_DESELECT, "DESELECT", 0, "Only Deselected", ""},
-		{0, NULL, 0, NULL, NULL}
-	};
-
 	/* identifiers */
 	ot->name = "Smooth Vertex Weights";
 	ot->idname = "OBJECT_OT_vertex_group_smooth";
 	ot->description = "Smooth weights for selected vertices";
 
 	/* api callbacks */
-	ot->poll = vertex_group_mesh_vert_select_poll;
+	ot->poll = vertex_group_mesh_vert_poll;
 	ot->exec = vertex_group_smooth_exec;
 
 	/* flags */
@@ -3123,7 +3142,6 @@ void OBJECT_OT_vertex_group_smooth(wmOperatorType *ot)
 	RNA_def_int(ot->srna, "repeat", 1, 1, 10000, "Iterations", "", 1, 200);
 
 	RNA_def_float(ot->srna, "expand", 0.0f, -1.0f, 1.0, "Expand/Contract", "Expand/contract weights", -1.0f, 1.0f);
-	RNA_def_enum(ot->srna, "source", smooth_source_item, -1, "Source", "Vertices to mix with");
 }
 
 static int vertex_group_clean_exec(bContext *C, wmOperator *op)
diff --git a/source/blender/editors/physics/particle_edit.c b/source/blender/editors/physics/particle_edit.c
index 2541aaa4b11..72c5a74aee9 100644
--- a/source/blender/editors/physics/particle_edit.c
+++ b/source/blender/editors/physics/particle_edit.c
@@ -424,7 +424,6 @@ static bool PE_create_shape_tree(PEData *data, Object *shapeob)
 		return false;
 	}
 	
-	DM_ensure_looptri(dm);
 	return (bvhtree_from_mesh_looptri(&data->shape_bvh, dm, 0.0f, 4, 8) != NULL);
 }
 
diff --git a/source/blender/editors/physics/particle_object.c b/source/blender/editors/physics/particle_object.c
index 4a4474868a2..29b652e1326 100644
--- a/source/blender/editors/physics/particle_object.c
+++ b/source/blender/editors/physics/particle_object.c
@@ -1035,7 +1035,7 @@ static bool copy_particle_systems_to_object(Main *bmain,
 	     psys_from;
 	     psys_from = PSYS_FROM_NEXT(psys_from), ++i) {
 		
-		psys = BKE_object_copy_particlesystem(psys_from);
+		psys = BKE_object_copy_particlesystem(psys_from, 0);
 		tmp_psys[i] = psys;
 		
 		if (psys_start == NULL)
diff --git a/source/blender/editors/render/CMakeLists.txt b/source/blender/editors/render/CMakeLists.txt
index 971ab9f3458..ec8bf3e955d 100644
--- a/source/blender/editors/render/CMakeLists.txt
+++ b/source/blender/editors/render/CMakeLists.txt
@@ -51,16 +51,6 @@ set(SRC
 	render_intern.h
 )
 
-if(WITH_CODEC_QUICKTIME)
-	list(APPEND INC
-		../../quicktime
-	)
-	list(APPEND INC_SYS
-		${QUICKTIME_INCLUDE_DIRS}
-	)
-	add_definitions(-DWITH_QUICKTIME)
-endif()
-
 if(WITH_HEADLESS)
 	add_definitions(-DWITH_HEADLESS)
 endif()
diff --git a/source/blender/editors/render/render_internal.c b/source/blender/editors/render/render_internal.c
index 43b1d033d23..26c863d8514 100644
--- a/source/blender/editors/render/render_internal.c
+++ b/source/blender/editors/render/render_internal.c
@@ -305,7 +305,7 @@ static int screen_render_exec(bContext *C, wmOperator *op)
 		return OPERATOR_CANCELLED;
 	}
 
-	re = RE_NewRender(scene->id.name);
+	re = RE_NewSceneRender(scene);
 	lay_override = (v3d && v3d->lay != scene->lay) ? v3d->lay : 0;
 
 	G.is_break = false;
@@ -964,7 +964,7 @@ static int screen_render_invoke(bContext *C, wmOperator *op, const wmEvent *even
 	rj->image = ima;
 
 	/* setup new render */
-	re = RE_NewRender(scene->id.name);
+	re = RE_NewSceneRender(scene);
 	RE_test_break_cb(re, rj, render_breakjob);
 	RE_draw_lock_cb(re, rj, render_drawlock);
 	RE_display_update_cb(re, rj, image_rect_update);
@@ -1171,7 +1171,7 @@ static void render_update_resolution(Render *re, const RenderPreview *rp,
 	}
 
 	if (rp->has_freestyle) {
-		if (rp->resolution_divider == 1) {
+		if (rp->resolution_divider == BKE_render_preview_pixel_size(&rp->scene->r)) {
 			RE_ChangeModeFlag(re, R_EDGE_FRS, false);
 		}
 		else {
@@ -1237,7 +1237,7 @@ static void render_view3d_startjob(void *customdata, short *stop, short *do_upda
 	use_border = render_view3d_disprect(rp->scene, rp->ar, rp->v3d,
 	                                    rp->rv3d, &cliprct);
 
-	if ((update_flag & (PR_UPDATE_RENDERSIZE | PR_UPDATE_DATABASE)) || rstats->convertdone == 0) {
+	if ((update_flag & (PR_UPDATE_RENDERSIZE | PR_UPDATE_DATABASE | PR_UPDATE_VIEW)) || rstats->convertdone == 0) {
 		RenderData rdata;
 
 		/* no osa, blur, seq, layers, savebuffer etc for preview render */
@@ -1312,11 +1312,12 @@ static void render_view3d_startjob(void *customdata, short *stop, short *do_upda
 		RE_updateRenderInstances(re, ob_inst_update_flag);
 
 		for (;;) {
+			int pixel_size = BKE_render_preview_pixel_size(&rp->scene->r);
 			if (first_time == false) {
 				if (restore)
 					RE_DataBase_IncrementalView(re, rp->viewmat, 1);
 
-				rp->resolution_divider /= 2;
+				rp->resolution_divider = MAX2(rp->resolution_divider/2, pixel_size);
 				*do_update = 1;
 
 				render_update_resolution(re, rp, use_border, &cliprct);
@@ -1333,7 +1334,7 @@ static void render_view3d_startjob(void *customdata, short *stop, short *do_upda
 
 			first_time = false;
 
-			if (*stop || rp->resolution_divider == 1) {
+			if (*stop || rp->resolution_divider == pixel_size) {
 				break;
 			}
 		}
@@ -1435,7 +1436,7 @@ static void render_view3d_do(RenderEngine *engine, const bContext *C)
 	Scene *scene = CTX_data_scene(C);
 	ARegion *ar = CTX_wm_region(C);
 	int width = ar->winx, height = ar->winy;
-	int divider = 1;
+	int divider = BKE_render_preview_pixel_size(&scene->r);
 	int resolution_threshold = scene->r.preview_start_resolution *
 	                           scene->r.preview_start_resolution;
 
diff --git a/source/blender/editors/render/render_opengl.c b/source/blender/editors/render/render_opengl.c
index 01050eda70b..a27026878e1 100644
--- a/source/blender/editors/render/render_opengl.c
+++ b/source/blender/editors/render/render_opengl.c
@@ -681,7 +681,7 @@ static bool screen_opengl_render_init(bContext *C, wmOperator *op)
 	}
 
 	/* create render */
-	oglrender->re = RE_NewRender(scene->id.name);
+	oglrender->re = RE_NewSceneRender(scene);
 
 	/* create image and image user */
 	oglrender->ima = BKE_image_verify_viewer(IMA_TYPE_R_RESULT, "Render Result");
diff --git a/source/blender/editors/render/render_shading.c b/source/blender/editors/render/render_shading.c
index 0878636d0fa..d252d764b42 100644
--- a/source/blender/editors/render/render_shading.c
+++ b/source/blender/editors/render/render_shading.c
@@ -1298,16 +1298,16 @@ static int freestyle_modifier_copy_exec(bContext *C, wmOperator *op)
 
 	switch (freestyle_get_modifier_type(&ptr)) {
 		case LS_MODIFIER_TYPE_COLOR:
-			BKE_linestyle_color_modifier_copy(lineset->linestyle, modifier);
+			BKE_linestyle_color_modifier_copy(lineset->linestyle, modifier, 0);
 			break;
 		case LS_MODIFIER_TYPE_ALPHA:
-			BKE_linestyle_alpha_modifier_copy(lineset->linestyle, modifier);
+			BKE_linestyle_alpha_modifier_copy(lineset->linestyle, modifier, 0);
 			break;
 		case LS_MODIFIER_TYPE_THICKNESS:
-			BKE_linestyle_thickness_modifier_copy(lineset->linestyle, modifier);
+			BKE_linestyle_thickness_modifier_copy(lineset->linestyle, modifier, 0);
 			break;
 		case LS_MODIFIER_TYPE_GEOMETRY:
-			BKE_linestyle_geometry_modifier_copy(lineset->linestyle, modifier);
+			BKE_linestyle_geometry_modifier_copy(lineset->linestyle, modifier, 0);
 			break;
 		default:
 			BKE_report(op->reports, RPT_ERROR, "The object the data pointer refers to is not a valid modifier");
@@ -1781,6 +1781,8 @@ static void copy_mtex_copybuf(ID *id)
 		case ID_LS:
 			mtex = &(((FreestyleLineStyle *)id)->mtex[(int)((FreestyleLineStyle *)id)->texact]);
 			break;
+		default:
+			break;
 	}
 	
 	if (mtex && *mtex) {
@@ -1818,7 +1820,7 @@ static void paste_mtex_copybuf(ID *id)
 			mtex = &(((FreestyleLineStyle *)id)->mtex[(int)((FreestyleLineStyle *)id)->texact]);
 			break;
 		default:
-			BLI_assert("invalid id type");
+			BLI_assert(!"invalid id type");
 			return;
 	}
 	
diff --git a/source/blender/editors/screen/screen_context.c b/source/blender/editors/screen/screen_context.c
index c165bbfd301..293e507c2b3 100644
--- a/source/blender/editors/screen/screen_context.c
+++ b/source/blender/editors/screen/screen_context.c
@@ -54,6 +54,7 @@
 
 #include "ED_armature.h"
 #include "ED_gpencil.h"
+#include "ED_anim_api.h"
 
 #include "WM_api.h"
 #include "UI_interface.h"
@@ -87,7 +88,7 @@ const char *screen_context_dir[] = {
 	"visible_gpencil_layers", "editable_gpencil_layers", "editable_gpencil_strokes",
 	"active_gpencil_layer", "active_gpencil_frame", "active_gpencil_palette", 
 	"active_gpencil_palettecolor", "active_gpencil_brush",
-	"active_operator",
+	"active_operator", "selected_editable_fcurves",
 	NULL};
 
 int ed_screen_context(const bContext *C, const char *member, bContextDataResult *result)
@@ -608,6 +609,30 @@ int ed_screen_context(const bContext *C, const char *member, bContextDataResult
 			return 1;
 		}
 	}
+	else if (CTX_data_equals(member, "selected_editable_fcurves"))
+	{
+		bAnimContext ac;
+
+		if (ANIM_animdata_get_context(C, &ac) && ELEM(ac.spacetype, SPACE_ACTION, SPACE_IPO)) {
+			bAnimListElem *ale;
+			ListBase anim_data = {NULL, NULL};
+
+			int filter = (ANIMFILTER_DATA_VISIBLE | ANIMFILTER_FOREDIT | ANIMFILTER_NODUPLIS | ANIMFILTER_SEL) |
+			             (ac.spacetype == SPACE_IPO ? ANIMFILTER_CURVE_VISIBLE : ANIMFILTER_LIST_VISIBLE);
+
+			ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
+
+			for (ale = anim_data.first; ale; ale = ale->next) {
+				if (ale->type == ANIMTYPE_FCURVE)
+					CTX_data_list_add(result, ale->id, &RNA_FCurve, ale->data);
+			}
+
+			ANIM_animdata_freelist(&anim_data);
+
+			CTX_data_type_set(result, CTX_DATA_TYPE_COLLECTION);
+			return 1;
+		}
+	}
 	else {
 		return 0; /* not found */
 	}
diff --git a/source/blender/editors/screen/screen_edit.c b/source/blender/editors/screen/screen_edit.c
index f469686b0b2..71b00a0a7c6 100644
--- a/source/blender/editors/screen/screen_edit.c
+++ b/source/blender/editors/screen/screen_edit.c
@@ -467,7 +467,7 @@ bScreen *ED_screen_add(wmWindow *win, Scene *scene, const char *name)
 	bScreen *sc;
 	ScrVert *sv1, *sv2, *sv3, *sv4;
 	
-	sc = BKE_libblock_alloc(G.main, ID_SCR, name);
+	sc = BKE_libblock_alloc(G.main, ID_SCR, name, 0);
 	sc->scene = scene;
 	sc->do_refresh = true;
 	sc->redraws_flag = TIME_ALL_3D_WIN | TIME_ALL_ANIM_WIN;
@@ -1894,17 +1894,28 @@ ScrArea *ED_screen_state_toggle(bContext *C, wmWindow *win, ScrArea *sa, const s
 
 	if (sa && sa->full) {
 		/* restoring back to SCREENNORMAL */
-		ScrArea *old;
-
 		sc = sa->full;       /* the old screen to restore */
 		oldscreen = win->screen; /* the one disappearing */
 
 		sc->state = SCREENNORMAL;
 
-		/* find old area */
-		for (old = sc->areabase.first; old; old = old->next)
-			if (old->full) break;
-		if (old == NULL) {
+		/* find old area to restore from */
+		ScrArea *fullsa = NULL;
+		for (ScrArea *old = sc->areabase.first; old; old = old->next) {
+			/* area to restore from is always first */
+			if (old->full && !fullsa) {
+				fullsa = old;
+			}
+
+			/* clear full screen state */
+			old->full = NULL;
+			old->flag &= ~AREA_TEMP_INFO;
+		}
+
+		sa->flag &= ~AREA_TEMP_INFO;
+		sa->full = NULL;
+
+		if (fullsa == NULL) {
 			if (G.debug & G_DEBUG)
 				printf("%s: something wrong in areafullscreen\n", __func__);
 			return NULL;
@@ -1917,9 +1928,7 @@ ScrArea *ED_screen_state_toggle(bContext *C, wmWindow *win, ScrArea *sa, const s
 			}
 		}
 
-		ED_area_data_swap(old, sa);
-		if (sa->flag & AREA_TEMP_INFO) sa->flag &= ~AREA_TEMP_INFO;
-		old->full = NULL;
+		ED_area_data_swap(fullsa, sa);
 
 		/* animtimer back */
 		sc->animtimer = oldscreen->animtimer;
diff --git a/source/blender/editors/screen/screen_ops.c b/source/blender/editors/screen/screen_ops.c
index c99d9add432..27e19ca1fc3 100644
--- a/source/blender/editors/screen/screen_ops.c
+++ b/source/blender/editors/screen/screen_ops.c
@@ -2260,25 +2260,28 @@ static int keyframe_jump_exec(bContext *C, wmOperator *op)
 	BLI_dlrbTree_linkedlist_sync(&keys);
 	
 	/* find matching keyframe in the right direction */
-	do {
-		if (next)
-			ak = (ActKeyColumn *)BLI_dlrbTree_search_next(&keys, compare_ak_cfraPtr, &cfra);
-		else
-			ak = (ActKeyColumn *)BLI_dlrbTree_search_prev(&keys, compare_ak_cfraPtr, &cfra);
-		
-		if (ak) {
-			if (CFRA != (int)ak->cfra) {
-				/* this changes the frame, so set the frame and we're done */
-				CFRA = (int)ak->cfra;
-				done = true;
+	if (next)
+		ak = (ActKeyColumn *)BLI_dlrbTree_search_next(&keys, compare_ak_cfraPtr, &cfra);
+	else
+		ak = (ActKeyColumn *)BLI_dlrbTree_search_prev(&keys, compare_ak_cfraPtr, &cfra);
+	
+	while ((ak != NULL) && (done == false)) {
+		if (CFRA != (int)ak->cfra) {
+			/* this changes the frame, so set the frame and we're done */
+			CFRA = (int)ak->cfra;
+			done = true;
+		}
+		else {
+			/* take another step... */
+			if (next) {
+				ak = ak->next;
 			}
 			else {
-				/* make this the new starting point for the search */
-				cfra = ak->cfra;
+				ak = ak->prev;
 			}
 		}
-	} while ((ak != NULL) && (done == false));
-
+	}
+	
 	/* free temp stuff */
 	BLI_dlrbTree_free(&keys);
 
diff --git a/source/blender/editors/sculpt_paint/CMakeLists.txt b/source/blender/editors/sculpt_paint/CMakeLists.txt
index 46753df4e13..69f14c950bb 100644
--- a/source/blender/editors/sculpt_paint/CMakeLists.txt
+++ b/source/blender/editors/sculpt_paint/CMakeLists.txt
@@ -52,6 +52,10 @@ set(SRC
 	paint_undo.c
 	paint_utils.c
 	paint_vertex.c
+	paint_vertex_color_ops.c
+	paint_vertex_color_utils.c
+	paint_vertex_weight_ops.c
+	paint_vertex_weight_utils.c
 	paint_vertex_proj.c
 	sculpt.c
 	sculpt_undo.c
diff --git a/source/blender/editors/sculpt_paint/paint_image.c b/source/blender/editors/sculpt_paint/paint_image.c
index bf344e1f721..79ce440251d 100644
--- a/source/blender/editors/sculpt_paint/paint_image.c
+++ b/source/blender/editors/sculpt_paint/paint_image.c
@@ -1448,7 +1448,20 @@ void PAINT_OT_texture_paint_toggle(wmOperatorType *ot)
 static int brush_colors_flip_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	UnifiedPaintSettings *ups = &CTX_data_tool_settings(C)->unified_paint_settings;
-	Brush *br = image_paint_brush(C);
+
+	Brush *br;
+	Object *ob = CTX_data_active_object(C);
+	if (!(ob && (ob->mode & OB_MODE_VERTEX_PAINT))) {
+		br = image_paint_brush(C);
+	}
+	else {
+		/* At the moment, wpaint does not support the color flipper. 
+		 * So for now we're only handling vpaint */
+		ToolSettings *ts = CTX_data_tool_settings(C);
+		VPaint *vp = ts->vpaint;
+		br = BKE_paint_brush(&vp->paint);
+	}
+
 	if (ups->flag & UNIFIED_PAINT_COLOR) {
 		swap_v3_v3(ups->rgb, ups->secondary_rgb);
 	}
@@ -1467,7 +1480,12 @@ static int brush_colors_flip_poll(bContext *C)
 		if (br->imagepaint_tool == PAINT_TOOL_DRAW)
 			return 1;
 	}
-
+	else {
+		Object *ob = CTX_data_active_object(C);
+		if (ob && (ob->mode & OB_MODE_VERTEX_PAINT)) {
+			return 1;
+		}
+	}
 	return 0;
 }
 
diff --git a/source/blender/editors/sculpt_paint/paint_image_2d.c b/source/blender/editors/sculpt_paint/paint_image_2d.c
index 4f93c12385d..09b0847b306 100644
--- a/source/blender/editors/sculpt_paint/paint_image_2d.c
+++ b/source/blender/editors/sculpt_paint/paint_image_2d.c
@@ -797,6 +797,7 @@ static void paint_2d_ibuf_rgb_set(ImBuf *ibuf, int x, int y, const bool is_torus
 		float map_alpha = (rgb[3] == 0.0f) ? rrgbf[3] : rrgbf[3] / rgb[3];
 
 		mul_v3_v3fl(rrgbf, rgb, map_alpha);
+		rrgbf[3] = rgb[3];
 	}
 	else {
 		unsigned char straight[4];
@@ -806,6 +807,7 @@ static void paint_2d_ibuf_rgb_set(ImBuf *ibuf, int x, int y, const bool is_torus
 		rrgb[0] = straight[0];
 		rrgb[1] = straight[1];
 		rrgb[2] = straight[2];
+		rrgb[3] = straight[3];
 	}
 }
 
@@ -995,7 +997,7 @@ static void paint_2d_lift_smear(ImBuf *ibuf, ImBuf *ibufb, int *pos, short tile)
 		IMB_rectblend(ibufb, ibufb, ibuf, NULL, NULL, NULL, 0, region[a].destx, region[a].desty,
 		              region[a].destx, region[a].desty,
 		              region[a].srcx, region[a].srcy,
-		              region[a].width, region[a].height, IMB_BLEND_COPY_RGB, false);
+		              region[a].width, region[a].height, IMB_BLEND_COPY, false);
 }
 
 static ImBuf *paint_2d_lift_clone(ImBuf *ibuf, ImBuf *ibufb, int *pos)
@@ -1096,6 +1098,7 @@ static int paint_2d_op(void *state, ImBuf *ibufb, unsigned short *curveb, unsign
 	/* lift from canvas */
 	if (s->tool == PAINT_TOOL_SOFTEN) {
 		paint_2d_lift_soften(s, s->canvas, ibufb, bpos, tile);
+		blend = IMB_BLEND_INTERPOLATE;
 	}
 	else if (s->tool == PAINT_TOOL_SMEAR) {
 		if (lastpos[0] == pos[0] && lastpos[1] == pos[1])
@@ -1103,6 +1106,7 @@ static int paint_2d_op(void *state, ImBuf *ibufb, unsigned short *curveb, unsign
 
 		paint_2d_convert_brushco(ibufb, lastpos, blastpos);
 		paint_2d_lift_smear(s->canvas, ibufb, blastpos, tile);
+		blend = IMB_BLEND_INTERPOLATE;
 	}
 	else if (s->tool == PAINT_TOOL_CLONE && s->clonecanvas) {
 		liftpos[0] = pos[0] - offset[0] * s->canvas->x;
diff --git a/source/blender/editors/sculpt_paint/paint_image_proj.c b/source/blender/editors/sculpt_paint/paint_image_proj.c
index b43581170d0..8586eb42bec 100644
--- a/source/blender/editors/sculpt_paint/paint_image_proj.c
+++ b/source/blender/editors/sculpt_paint/paint_image_proj.c
@@ -4295,7 +4295,7 @@ static void do_projectpaint_soften_f(ProjPaintState *ps, ProjPixel *projPixel, f
 				return;
 		}
 		else {
-			blend_color_interpolate_float(rgba, rgba, projPixel->pixel.f_pt, mask);
+			blend_color_interpolate_float(rgba, projPixel->pixel.f_pt, rgba, mask);
 		}
 
 		BLI_linklist_prepend_arena(softenPixels, (void *)projPixel, softenArena);
@@ -4754,6 +4754,9 @@ static void *do_projectpaint_thread(void *ph_v)
 							copy_v3_v3(texrgb, texrgba);
 							mask *= texrgba[3];
 						}
+						else {
+							zero_v3(texrgb);
+						}
 
 						/* extra mask for normal, layer stencil, .. */
 						mask *= ((float)projPixel->mask) * (1.0f / 65535.0f);
diff --git a/source/blender/editors/sculpt_paint/paint_intern.h b/source/blender/editors/sculpt_paint/paint_intern.h
index 7e05ab929ae..bd35218bb64 100644
--- a/source/blender/editors/sculpt_paint/paint_intern.h
+++ b/source/blender/editors/sculpt_paint/paint_intern.h
@@ -96,21 +96,11 @@ int weight_paint_mode_poll(struct bContext *C);
 int vertex_paint_poll(struct bContext *C);
 int vertex_paint_mode_poll(struct bContext *C);
 
-bool ED_vpaint_fill(struct Object *ob, unsigned int paintcol);
-bool ED_wpaint_fill(struct VPaint *wp, struct Object *ob, float paintweight);
-
-bool ED_vpaint_smooth(struct Object *ob);
-
 typedef void (*VPaintTransform_Callback)(const float col[3], const void *user_data, float r_col[3]);
 
-bool ED_vpaint_color_transform(struct Object *ob, VPaintTransform_Callback vpaint_tx_fn, const void *user_data);
-
 void PAINT_OT_weight_paint_toggle(struct wmOperatorType *ot);
 void PAINT_OT_weight_paint(struct wmOperatorType *ot);
 void PAINT_OT_weight_set(struct wmOperatorType *ot);
-void PAINT_OT_weight_from_bones(struct wmOperatorType *ot);
-void PAINT_OT_weight_sample(struct wmOperatorType *ot);
-void PAINT_OT_weight_sample_group(struct wmOperatorType *ot);
 
 enum {
 	WPAINT_GRADIENT_TYPE_LINEAR,
@@ -123,6 +113,44 @@ void PAINT_OT_vertex_paint(struct wmOperatorType *ot);
 
 unsigned int vpaint_get_current_col(struct Scene *scene, struct VPaint *vp);
 
+/* paint_vertex_color_utils.c */
+unsigned int ED_vpaint_blend_tool(
+        const int tool, const uint col,
+        const uint paintcol, const int alpha_i);
+bool ED_vpaint_color_transform(
+        struct Object *ob, VPaintTransform_Callback vpaint_tx_fn, const void *user_data);
+
+/* paint_vertex_weight_utils.c */
+float ED_wpaint_blend_tool(
+        const int tool,
+        const float weight,
+        const float paintval, const float alpha);
+/* Utility for tools to ensure vertex groups exist before they begin. */
+enum eWPaintFlag {
+	WPAINT_ENSURE_MIRROR = (1 << 0),
+};
+struct WPaintVGroupIndex {
+	int active;
+	int mirror;
+};
+bool ED_wpaint_ensure_data(
+        struct bContext *C, struct ReportList *reports,
+        enum eWPaintFlag flag, struct WPaintVGroupIndex *vgroup_index);
+int ED_wpaint_mirror_vgroup_ensure(struct Object *ob, const int vgroup_active);
+
+/* paint_vertex_color_ops.c */
+void PAINT_OT_vertex_color_set(struct wmOperatorType *ot);
+void PAINT_OT_vertex_color_from_weight(struct wmOperatorType *ot);
+void PAINT_OT_vertex_color_smooth(struct wmOperatorType *ot);
+void PAINT_OT_vertex_color_brightness_contrast(struct wmOperatorType *ot);
+void PAINT_OT_vertex_color_hsv(struct wmOperatorType *ot);
+void PAINT_OT_vertex_color_invert(struct wmOperatorType *ot);
+void PAINT_OT_vertex_color_levels(struct wmOperatorType *ot);
+
+/* paint_vertex_weight_ops.c */
+void PAINT_OT_weight_from_bones(struct wmOperatorType *ot);
+void PAINT_OT_weight_sample(struct wmOperatorType *ot);
+void PAINT_OT_weight_sample_group(struct wmOperatorType *ot);
 
 /* paint_vertex_proj.c */
 struct VertProjHandle;
@@ -160,7 +188,7 @@ void set_imapaintpartial(struct ImagePaintPartialRedraw *ippr);
 void imapaint_region_tiles(struct ImBuf *ibuf, int x, int y, int w, int h, int *tx, int *ty, int *tw, int *th);
 int get_imapaint_zoom(struct bContext *C, float *zoomx, float *zoomy);
 void *paint_2d_new_stroke(struct bContext *, struct wmOperator *, int mode);
-void paint_2d_redraw(const bContext *C, void *ps, bool final);
+void paint_2d_redraw(const struct bContext *C, void *ps, bool final);
 void paint_2d_stroke_done(void *ps);
 void paint_2d_stroke(void *ps, const float prev_mval[2], const float mval[2], const bool eraser, float pressure, float distance, float size);
 void paint_2d_bucket_fill(const struct bContext *C, const float color[3], struct Brush *br, const float mouse_init[2], void *ps);
@@ -217,7 +245,7 @@ float paint_calc_object_space_radius(struct ViewContext *vc, const float center[
 float paint_get_tex_pixel(struct MTex *mtex, float u, float v, struct ImagePool *pool, int thread);
 void paint_get_tex_pixel_col(struct MTex *mtex, float u, float v, float rgba[4], struct ImagePool *pool, int thread, bool convert, struct ColorSpace *colorspace);
 
-void paint_sample_color(bContext *C, struct ARegion *ar, int x, int y, bool texpaint_proj, bool palette);
+void paint_sample_color(struct bContext *C, struct ARegion *ar, int x, int y, bool texpaint_proj, bool palette);
 
 void paint_stroke_operator_properties(struct wmOperatorType *ot);
 
diff --git a/source/blender/editors/sculpt_paint/paint_ops.c b/source/blender/editors/sculpt_paint/paint_ops.c
index f88b64129e7..4f6b3d100c5 100644
--- a/source/blender/editors/sculpt_paint/paint_ops.c
+++ b/source/blender/editors/sculpt_paint/paint_ops.c
@@ -256,300 +256,6 @@ static void PALETTE_OT_color_delete(wmOperatorType *ot)
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
 
-
-
-static int vertex_color_set_exec(bContext *C, wmOperator *UNUSED(op))
-{
-	Scene *scene = CTX_data_scene(C);
-	Object *obact = CTX_data_active_object(C);
-	unsigned int paintcol = vpaint_get_current_col(scene, scene->toolsettings->vpaint);
-
-	if (ED_vpaint_fill(obact, paintcol)) {
-		ED_region_tag_redraw(CTX_wm_region(C)); // XXX - should redraw all 3D views
-		return OPERATOR_FINISHED;
-	}
-	else {
-		return OPERATOR_CANCELLED;
-	}
-}
-
-static void PAINT_OT_vertex_color_set(wmOperatorType *ot)
-{
-	/* identifiers */
-	ot->name = "Set Vertex Colors";
-	ot->idname = "PAINT_OT_vertex_color_set";
-	ot->description = "Fill the active vertex color layer with the current paint color";
-	
-	/* api callbacks */
-	ot->exec = vertex_color_set_exec;
-	ot->poll = vertex_paint_mode_poll;
-	
-	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-}
-
-static int vertex_color_smooth_exec(bContext *C, wmOperator *UNUSED(op))
-{
-	Object *obact = CTX_data_active_object(C);
-	if (ED_vpaint_smooth(obact)) {
-		ED_region_tag_redraw(CTX_wm_region(C)); // XXX - should redraw all 3D views
-		return OPERATOR_FINISHED;
-	}
-	else {
-		return OPERATOR_CANCELLED;
-	}
-}
-
-static void PAINT_OT_vertex_color_smooth(wmOperatorType *ot)
-{
-	/* identifiers */
-	ot->name = "Smooth Vertex Colors";
-	ot->idname = "PAINT_OT_vertex_color_smooth";
-	ot->description = "Smooth colors across vertices";
-
-	/* api callbacks */
-	ot->exec = vertex_color_smooth_exec;
-	ot->poll = vertex_paint_mode_poll;
-
-	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-}
-
-
-/** \name Vertex Color Transformations
- * \{ */
-
-struct VPaintTx_BrightContrastData {
-	/* pre-calculated */
-	float gain;
-	float offset;
-};
-
-static void vpaint_tx_brightness_contrast(const float col[3], const void *user_data, float r_col[3])
-{
-	const struct VPaintTx_BrightContrastData *data = user_data;
-
-	for (int i = 0; i < 3; i++) {
-		r_col[i] = data->gain * col[i] + data->offset;
-	}
-}
-
-static int vertex_color_brightness_contrast_exec(bContext *C, wmOperator *op)
-{
-	Object *obact = CTX_data_active_object(C);
-
-	float gain, offset;
-	{
-		float brightness = RNA_float_get(op->ptr, "brightness");
-		float contrast = RNA_float_get(op->ptr, "contrast");
-		brightness /= 100.0f;
-		float delta = contrast / 200.0f;
-		gain = 1.0f - delta * 2.0f;
-		/*
-		 * The algorithm is by Werner D. Streidt
-		 * (http://visca.com/ffactory/archives/5-99/msg00021.html)
-		 * Extracted of OpenCV demhist.c
-		 */
-		if (contrast > 0) {
-			gain = 1.0f / ((gain != 0.0f) ? gain : FLT_EPSILON);
-			offset = gain * (brightness - delta);
-		}
-		else {
-			delta *= -1;
-			offset = gain * (brightness + delta);
-		}
-	}
-
-	const struct VPaintTx_BrightContrastData user_data = {
-		.gain = gain,
-		.offset = offset,
-	};
-
-	if (ED_vpaint_color_transform(obact, vpaint_tx_brightness_contrast, &user_data)) {
-		ED_region_tag_redraw(CTX_wm_region(C));
-		return OPERATOR_FINISHED;
-	}
-	else {
-		return OPERATOR_CANCELLED;
-	}
-}
-
-static void PAINT_OT_vertex_color_brightness_contrast(wmOperatorType *ot)
-{
-	PropertyRNA *prop;
-
-	/* identifiers */
-	ot->name = "Vertex Paint Bright/Contrast";
-	ot->idname = "PAINT_OT_vertex_color_brightness_contrast";
-	ot->description = "Adjust vertex color brightness/contrast";
-
-	/* api callbacks */
-	ot->exec = vertex_color_brightness_contrast_exec;
-	ot->poll = vertex_paint_mode_poll;
-
-	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-
-	/* params */
-	const float min = -100, max = +100;
-	prop = RNA_def_float(ot->srna, "brightness", 0.0f, min, max, "Brightness", "", min, max);
-	prop = RNA_def_float(ot->srna, "contrast", 0.0f, min, max, "Contrast", "", min, max);
-	RNA_def_property_ui_range(prop, min, max, 1, 1);
-}
-
-struct VPaintTx_HueSatData {
-	float hue;
-	float sat;
-	float val;
-};
-
-static void vpaint_tx_hsv(const float col[3], const void *user_data, float r_col[3])
-{
-	const struct VPaintTx_HueSatData *data = user_data;
-	float hsv[3];
-	rgb_to_hsv_v(col, hsv);
-
-	hsv[0] += (data->hue - 0.5f);
-	if (hsv[0] > 1.0f) {
-		hsv[0] -= 1.0f;
-	}
-	else if (hsv[0] < 0.0f) {
-		hsv[0] += 1.0f;
-	}
-	hsv[1] *= data->sat;
-	hsv[2] *= data->val;
-
-	hsv_to_rgb_v(hsv, r_col);
-}
-
-static int vertex_color_hsv_exec(bContext *C, wmOperator *op)
-{
-	Object *obact = CTX_data_active_object(C);
-
-	const struct VPaintTx_HueSatData user_data = {
-		.hue = RNA_float_get(op->ptr, "h"),
-		.sat = RNA_float_get(op->ptr, "s"),
-		.val = RNA_float_get(op->ptr, "v"),
-	};
-
-	if (ED_vpaint_color_transform(obact, vpaint_tx_hsv, &user_data)) {
-		ED_region_tag_redraw(CTX_wm_region(C));
-		return OPERATOR_FINISHED;
-	}
-	else {
-		return OPERATOR_CANCELLED;
-	}
-}
-
-static void PAINT_OT_vertex_color_hsv(wmOperatorType *ot)
-{
-	/* identifiers */
-	ot->name = "Vertex Paint Hue Saturation Value";
-	ot->idname = "PAINT_OT_vertex_color_hsv";
-	ot->description = "Adjust vertex color HSV values";
-
-	/* api callbacks */
-	ot->exec = vertex_color_hsv_exec;
-	ot->poll = vertex_paint_mode_poll;
-
-	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-
-	/* params */
-	RNA_def_float(ot->srna, "h", 0.5f, 0.0f, 1.0f, "Hue", "", 0.0f, 1.0f);
-	RNA_def_float(ot->srna, "s", 1.0f, 0.0f, 2.0f, "Saturation", "", 0.0f, 2.0f);
-	RNA_def_float(ot->srna, "v", 1.0f, 0.0f, 2.0f, "Value", "", 0.0f, 2.0f);
-}
-
-static void vpaint_tx_invert(const float col[3], const void *UNUSED(user_data), float r_col[3])
-{
-	for (int i = 0; i < 3; i++) {
-		r_col[i] = 1.0f - col[i];
-	}
-}
-
-static int vertex_color_invert_exec(bContext *C, wmOperator *UNUSED(op))
-{
-	Object *obact = CTX_data_active_object(C);
-
-	if (ED_vpaint_color_transform(obact, vpaint_tx_invert, NULL)) {
-		ED_region_tag_redraw(CTX_wm_region(C));
-		return OPERATOR_FINISHED;
-	}
-	else {
-		return OPERATOR_CANCELLED;
-	}
-}
-
-static void PAINT_OT_vertex_color_invert(wmOperatorType *ot)
-{
-	/* identifiers */
-	ot->name = "Vertex Paint Invert";
-	ot->idname = "PAINT_OT_vertex_color_invert";
-	ot->description = "Invert RGB values";
-
-	/* api callbacks */
-	ot->exec = vertex_color_invert_exec;
-	ot->poll = vertex_paint_mode_poll;
-
-	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-}
-
-
-struct VPaintTx_LevelsData {
-	float gain;
-	float offset;
-};
-
-static void vpaint_tx_levels(const float col[3], const void *user_data, float r_col[3])
-{
-	const struct VPaintTx_LevelsData *data = user_data;
-	for (int i = 0; i < 3; i++) {
-		r_col[i] = data->gain * (col[i] + data->offset);
-	}
-}
-
-static int vertex_color_levels_exec(bContext *C, wmOperator *op)
-{
-	Object *obact = CTX_data_active_object(C);
-
-	const struct VPaintTx_LevelsData user_data = {
-		.gain = RNA_float_get(op->ptr, "gain"),
-		.offset = RNA_float_get(op->ptr, "offset"),
-	};
-
-	if (ED_vpaint_color_transform(obact, vpaint_tx_levels, &user_data)) {
-		ED_region_tag_redraw(CTX_wm_region(C));
-		return OPERATOR_FINISHED;
-	}
-	else {
-		return OPERATOR_CANCELLED;
-	}
-}
-
-static void PAINT_OT_vertex_color_levels(wmOperatorType *ot)
-{
-	/* identifiers */
-	ot->name = "Vertex Paint Levels";
-	ot->idname = "PAINT_OT_vertex_color_levels";
-	ot->description = "Adjust levels of vertex colors";
-
-	/* api callbacks */
-	ot->exec = vertex_color_levels_exec;
-	ot->poll = vertex_paint_mode_poll;
-
-	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-
-	/* params */
-	RNA_def_float(ot->srna, "offset", 0.0f, -1.0f, 1.0f, "Offset", "Value to add to colors", -1.0f, 1.0f);
-	RNA_def_float(ot->srna, "gain", 1.0f, 0.0f, FLT_MAX, "Gain", "Value to multiply colors by", 0.0f, 10.0f);
-}
-
-/** \} */
-
-
 static int brush_reset_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	Paint *paint = BKE_paint_get_active_from_context(C);
@@ -821,8 +527,6 @@ static int brush_uv_sculpt_tool_set_exec(bContext *C, wmOperator *op)
 
 static void BRUSH_OT_uv_sculpt_tool_set(wmOperatorType *ot)
 {
-	/* from rna_scene.c */
-	extern EnumPropertyItem uv_sculpt_tool_items[];
 	/* identifiers */
 	ot->name = "UV Sculpt Tool Set";
 	ot->description = "Set the UV sculpt tool";
@@ -836,7 +540,7 @@ static void BRUSH_OT_uv_sculpt_tool_set(wmOperatorType *ot)
 	ot->flag = 0;
 
 	/* props */
-	ot->prop = RNA_def_enum(ot->srna, "tool", uv_sculpt_tool_items, 0, "Tool", "");
+	ot->prop = RNA_def_enum(ot->srna, "tool", rna_enum_uv_sculpt_tool_items, 0, "Tool", "");
 }
 
 /***** Stencil Control *****/
@@ -1351,6 +1055,7 @@ void ED_operatortypes_paint(void)
 	WM_operatortype_append(PAINT_OT_vertex_color_hsv);
 	WM_operatortype_append(PAINT_OT_vertex_color_invert);
 	WM_operatortype_append(PAINT_OT_vertex_color_levels);
+	WM_operatortype_append(PAINT_OT_vertex_color_from_weight);
 
 	/* face-select */
 	WM_operatortype_append(PAINT_OT_face_select_linked);
@@ -1615,6 +1320,7 @@ void ED_keymap_paint(wmKeyConfig *keyconf)
 	keymap->poll = vertex_paint_mode_poll;
 
 	WM_keymap_verify_item(keymap, "PAINT_OT_vertex_paint", LEFTMOUSE, KM_PRESS, 0, 0);
+	WM_keymap_add_item(keymap, "PAINT_OT_brush_colors_flip", XKEY, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "PAINT_OT_sample_color", SKEY, KM_PRESS, 0, 0);
 
 	WM_keymap_add_item(keymap,
diff --git a/source/blender/editors/sculpt_paint/paint_stroke.c b/source/blender/editors/sculpt_paint/paint_stroke.c
index 05270dbfa09..bb2cd52a41e 100644
--- a/source/blender/editors/sculpt_paint/paint_stroke.c
+++ b/source/blender/editors/sculpt_paint/paint_stroke.c
@@ -580,7 +580,10 @@ static float paint_stroke_integrate_overlap(Brush *br, float factor)
 			max = overlap;
 	}
 
-	return 1.0f / max;
+	if (max == 0.0f)
+		return 1.0f;
+	else
+		return 1.0f / max;
 }
 
 static float paint_space_stroke_spacing_variable(const Scene *scene, PaintStroke *stroke, float pressure, float dpressure, float length)
diff --git a/source/blender/editors/sculpt_paint/paint_utils.c b/source/blender/editors/sculpt_paint/paint_utils.c
index 31c471c3517..10628d8cccb 100644
--- a/source/blender/editors/sculpt_paint/paint_utils.c
+++ b/source/blender/editors/sculpt_paint/paint_utils.c
@@ -426,7 +426,7 @@ void paint_sample_color(bContext *C, ARegion *ar, int x, int y, bool texpaint_pr
 	Scene *scene = CTX_data_scene(C);
 	Paint *paint = BKE_paint_get_active_from_context(C);
 	Palette *palette = BKE_paint_palette(paint);
-	PaletteColor *color;
+	PaletteColor *color = NULL;
 	Brush *br = BKE_paint_brush(BKE_paint_get_active_from_context(C));
 	unsigned int col;
 	const unsigned char *cp;
diff --git a/source/blender/editors/sculpt_paint/paint_vertex.c b/source/blender/editors/sculpt_paint/paint_vertex.c
index 729dd9dc57b..4d6222a4301 100644
--- a/source/blender/editors/sculpt_paint/paint_vertex.c
+++ b/source/blender/editors/sculpt_paint/paint_vertex.c
@@ -27,20 +27,20 @@
 
 /** \file blender/editors/sculpt_paint/paint_vertex.c
  *  \ingroup edsculpt
+ *
+ * Used for vertex color & weight paint and mode switching.
+ *
+ * \note This file is already big,
+ * use `paint_vertex_color_ops.c` & `paint_vertex_weight_ops.c` for general purpose operators.
  */
 
 #include "MEM_guardedalloc.h"
 
-#include "BLI_blenlib.h"
+#include "BLI_listbase.h"
+#include "BLI_rect.h"
 #include "BLI_math.h"
 #include "BLI_array_utils.h"
-#include "BLI_bitmap.h"
-#include "BLI_stack.h"
-#include "BLI_string_utils.h"
-
-#include "IMB_imbuf.h"
-#include "IMB_imbuf_types.h"
-#include "IMB_colormanagement.h"
+#include "BLI_task.h"
 
 #include "DNA_armature_types.h"
 #include "DNA_mesh_types.h"
@@ -51,39 +51,50 @@
 
 #include "RNA_access.h"
 #include "RNA_define.h"
-#include "RNA_enum_types.h"
 
-#include "BKE_DerivedMesh.h"
-#include "BKE_action.h"
 #include "BKE_brush.h"
 #include "BKE_context.h"
 #include "BKE_depsgraph.h"
 #include "BKE_deform.h"
 #include "BKE_mesh.h"
 #include "BKE_mesh_mapping.h"
-#include "BKE_modifier.h"
 #include "BKE_object_deform.h"
 #include "BKE_paint.h"
 #include "BKE_report.h"
-#include "BKE_colortools.h"
+#include "BKE_subsurf.h"
 
 #include "WM_api.h"
 #include "WM_types.h"
 
-#include "ED_armature.h"
 #include "ED_object.h"
 #include "ED_mesh.h"
 #include "ED_screen.h"
 #include "ED_view3d.h"
 
+#include "bmesh.h"
+#include "BKE_ccg.h"
+
+#include "sculpt_intern.h"
 #include "paint_intern.h"  /* own include */
 
-/* small structure to defer applying weight-paint results */
-struct WPaintDefer {
-	int index;
-	float alpha, weight;
+/* Use for 'blur' brush, align with PBVH nodes, created and freed on each update. */
+struct VPaintAverageAccum {
+	uint len;
+	uint value[3];
+};
+
+struct WPaintAverageAccum {
+	uint len;
+	double value;
 };
 
+static void defweight_prev_init(const MDeformWeight *dw, float *weight_prev)
+{
+	if (UNLIKELY(*weight_prev == -1.0f)) {
+		*weight_prev = dw ? dw->weight : 0.0f;
+	}
+}
+
 /* check if we can do partial updates and have them draw realtime
  * (without rebuilding the 'derivedFinal') */
 static bool vertex_paint_use_fast_update_check(Object *ob)
@@ -174,629 +185,38 @@ static VPaint *new_vpaint(int wpaint)
 	return vp;
 }
 
-static int *get_indexarray(Mesh *me)
-{
-	return MEM_mallocN(sizeof(int) * (me->totpoly + 1), "vertexpaint");
-}
-
-unsigned int vpaint_get_current_col(Scene *scene, VPaint *vp)
+uint vpaint_get_current_col(Scene *scene, VPaint *vp)
 {
 	Brush *brush = BKE_paint_brush(&vp->paint);
-	unsigned char col[4];
+	uchar col[4];
 	rgb_float_to_uchar(col, BKE_brush_color_get(scene, brush));
 	col[3] = 255; /* alpha isn't used, could even be removed to speedup paint a little */
-	return *(unsigned int *)col;
-}
-
-static void do_shared_vertexcol(Mesh *me, bool *mlooptag)
-{
-	const bool use_face_sel = (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
-	MPoly *mp;
-	int (*scol)[4];
-	int i, j;
-	bool has_shared = false;
-
-	/* if no mloopcol: do not do */
-	/* if mtexpoly: only the involved faces, otherwise all */
-
-	if (me->mloopcol == NULL || me->totvert == 0 || me->totpoly == 0) return;
-
-	scol = MEM_callocN(sizeof(int) * me->totvert * 5, "scol");
-
-	for (i = 0, mp = me->mpoly; i < me->totpoly; i++, mp++) {
-		if ((use_face_sel == false) || (mp->flag & ME_FACE_SEL)) {
-			MLoop *ml = me->mloop + mp->loopstart;
-			MLoopCol *lcol = me->mloopcol + mp->loopstart;
-			for (j = 0; j < mp->totloop; j++, ml++, lcol++) {
-				scol[ml->v][0] += lcol->r;
-				scol[ml->v][1] += lcol->g;
-				scol[ml->v][2] += lcol->b;
-				scol[ml->v][3] += 1;
-				has_shared = 1;
-			}
-		}
-	}
-
-	if (has_shared) {
-		for (i = 0; i < me->totvert; i++) {
-			if (scol[i][3] != 0) {
-				scol[i][0] = divide_round_i(scol[i][0], scol[i][3]);
-				scol[i][1] = divide_round_i(scol[i][1], scol[i][3]);
-				scol[i][2] = divide_round_i(scol[i][2], scol[i][3]);
-			}
-		}
-
-		for (i = 0, mp = me->mpoly; i < me->totpoly; i++, mp++) {
-			if ((use_face_sel == false) || (mp->flag & ME_FACE_SEL)) {
-				MLoop *ml = me->mloop + mp->loopstart;
-				MLoopCol *lcol = me->mloopcol + mp->loopstart;
-				for (j = 0; j < mp->totloop; j++, ml++, lcol++) {
-					if (mlooptag[mp->loopstart + j]) {
-						lcol->r = scol[ml->v][0];
-						lcol->g = scol[ml->v][1];
-						lcol->b = scol[ml->v][2];
-					}
-				}
-			}
-		}
-	}
-
-	MEM_freeN(scol);
-}
-
-static bool make_vertexcol(Object *ob)  /* single ob */
-{
-	Mesh *me;
-
-	if (ID_IS_LINKED_DATABLOCK(ob) ||
-	    ((me = BKE_mesh_from_object(ob)) == NULL) ||
-	    (me->totpoly == 0) ||
-	    (me->edit_btmesh))
-	{
-		return false;
-	}
-
-	/* copies from shadedisplist to mcol */
-	if (!me->mloopcol && me->totloop) {
-		CustomData_add_layer(&me->ldata, CD_MLOOPCOL, CD_DEFAULT, NULL, me->totloop);
-		BKE_mesh_update_customdata_pointers(me, true);
-	}
-
-	DAG_id_tag_update(&me->id, 0);
-	
-	return (me->mloopcol != NULL);
-}
-
-/* mirror_vgroup is set to -1 when invalid */
-static int wpaint_mirror_vgroup_ensure(Object *ob, const int vgroup_active)
-{
-	bDeformGroup *defgroup = BLI_findlink(&ob->defbase, vgroup_active);
-
-	if (defgroup) {
-		int mirrdef;
-		char name_flip[MAXBONENAME];
-
-		BLI_string_flip_side_name(name_flip, defgroup->name, false, sizeof(name_flip));
-		mirrdef = defgroup_name_index(ob, name_flip);
-		if (mirrdef == -1) {
-			if (BKE_defgroup_new(ob, name_flip)) {
-				mirrdef = BLI_listbase_count(&ob->defbase) - 1;
-			}
-		}
-
-		/* curdef should never be NULL unless this is
-		 * a  lamp and BKE_object_defgroup_add_name fails */
-		return mirrdef;
-	}
-
-	return -1;
-}
-
-static void free_vpaint_prev(VPaint *vp)
-{
-	if (vp->vpaint_prev) {
-		MEM_freeN(vp->vpaint_prev);
-		vp->vpaint_prev = NULL;
-		vp->tot = 0;
-	}
-}
-
-static void free_wpaint_prev(VPaint *vp)
-{
-	if (vp->wpaint_prev) {
-		BKE_defvert_array_free(vp->wpaint_prev, vp->tot);
-		vp->wpaint_prev = NULL;
-		vp->tot = 0;
-	}
-}
-
-static void copy_vpaint_prev(VPaint *vp, unsigned int *lcol, int tot)
-{
-	free_vpaint_prev(vp);
-
-	vp->tot = tot;
-	
-	if (lcol == NULL || tot == 0) return;
-	
-	vp->vpaint_prev = MEM_mallocN(sizeof(int) * tot, "vpaint_prev");
-	memcpy(vp->vpaint_prev, lcol, sizeof(int) * tot);
-	
-}
-
-static void copy_wpaint_prev(VPaint *wp, MDeformVert *dverts, int dcount)
-{
-	free_wpaint_prev(wp);
-	
-	if (dverts && dcount) {
-		
-		wp->wpaint_prev = MEM_mallocN(sizeof(MDeformVert) * dcount, "wpaint prev");
-		wp->tot = dcount;
-		BKE_defvert_array_copy(wp->wpaint_prev, dverts, dcount);
-	}
-}
-
-bool ED_vpaint_fill(Object *ob, unsigned int paintcol)
-{
-	Mesh *me;
-	MPoly *mp;
-	int i, j;
-	bool selected;
-
-	if (((me = BKE_mesh_from_object(ob)) == NULL) ||
-	    (me->mloopcol == NULL && (make_vertexcol(ob) == false)))
-	{
-		return false;
-	}
-
-	selected = (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
-
-	mp = me->mpoly;
-	for (i = 0; i < me->totpoly; i++, mp++) {
-		MLoopCol *lcol = me->mloopcol + mp->loopstart;
-
-		if (selected && !(mp->flag & ME_FACE_SEL))
-			continue;
-
-		for (j = 0; j < mp->totloop; j++, lcol++) {
-			*(int *)lcol = paintcol;
-		}
-	}
-	
-	/* remove stale me->mcol, will be added later */
-	BKE_mesh_tessface_clear(me);
-
-	DAG_id_tag_update(&me->id, 0);
-
-	return true;
-}
-
-
-/* fills in the selected faces with the current weight and vertex group */
-bool ED_wpaint_fill(VPaint *wp, Object *ob, float paintweight)
-{
-	Mesh *me = ob->data;
-	MPoly *mp;
-	MDeformWeight *dw, *dw_prev;
-	int vgroup_active, vgroup_mirror = -1;
-	unsigned int index;
-	const bool topology = (me->editflag & ME_EDIT_MIRROR_TOPO) != 0;
-
-	/* mutually exclusive, could be made into a */
-	const short paint_selmode = ME_EDIT_PAINT_SEL_MODE(me);
-
-	if (me->totpoly == 0 || me->dvert == NULL || !me->mpoly) {
-		return false;
-	}
-	
-	vgroup_active = ob->actdef - 1;
-
-	/* if mirror painting, find the other group */
-	if (me->editflag & ME_EDIT_MIRROR_X) {
-		vgroup_mirror = wpaint_mirror_vgroup_ensure(ob, vgroup_active);
-	}
-	
-	copy_wpaint_prev(wp, me->dvert, me->totvert);
-	
-	for (index = 0, mp = me->mpoly; index < me->totpoly; index++, mp++) {
-		unsigned int fidx = mp->totloop - 1;
-
-		if ((paint_selmode == SCE_SELECT_FACE) && !(mp->flag & ME_FACE_SEL)) {
-			continue;
-		}
-
-		do {
-			unsigned int vidx = me->mloop[mp->loopstart + fidx].v;
-
-			if (!me->dvert[vidx].flag) {
-				if ((paint_selmode == SCE_SELECT_VERTEX) && !(me->mvert[vidx].flag & SELECT)) {
-					continue;
-				}
-
-				dw = defvert_verify_index(&me->dvert[vidx], vgroup_active);
-				if (dw) {
-					dw_prev = defvert_verify_index(wp->wpaint_prev + vidx, vgroup_active);
-					dw_prev->weight = dw->weight; /* set the undo weight */
-					dw->weight = paintweight;
-
-					if (me->editflag & ME_EDIT_MIRROR_X) {  /* x mirror painting */
-						int j = mesh_get_x_mirror_vert(ob, NULL, vidx, topology);
-						if (j >= 0) {
-							/* copy, not paint again */
-							if (vgroup_mirror != -1) {
-								dw = defvert_verify_index(me->dvert + j, vgroup_mirror);
-								dw_prev = defvert_verify_index(wp->wpaint_prev + j, vgroup_mirror);
-							}
-							else {
-								dw = defvert_verify_index(me->dvert + j, vgroup_active);
-								dw_prev = defvert_verify_index(wp->wpaint_prev + j, vgroup_active);
-							}
-							dw_prev->weight = dw->weight; /* set the undo weight */
-							dw->weight = paintweight;
-						}
-					}
-				}
-				me->dvert[vidx].flag = 1;
-			}
-
-		} while (fidx--);
-	}
-
-	{
-		MDeformVert *dv = me->dvert;
-		for (index = me->totvert; index != 0; index--, dv++) {
-			dv->flag = 0;
-		}
-	}
-
-	copy_wpaint_prev(wp, NULL, 0);
-
-	DAG_id_tag_update(&me->id, 0);
-
-	return true;
-}
-
-bool ED_vpaint_smooth(Object *ob)
-{
-	Mesh *me;
-	MPoly *mp;
-
-	int i, j;
-
-	bool *mlooptag;
-	bool selected;
-
-	if (((me = BKE_mesh_from_object(ob)) == NULL) ||
-	    (me->mloopcol == NULL && (make_vertexcol(ob) == false)))
-	{
-		return false;
-	}
-
-	selected = (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
-
-	mlooptag = MEM_callocN(sizeof(bool) * me->totloop, "VPaintData mlooptag");
-
-	/* simply tag loops of selected faces */
-	mp = me->mpoly;
-	for (i = 0; i < me->totpoly; i++, mp++) {
-		MLoop *ml = me->mloop + mp->loopstart;
-		int ml_index = mp->loopstart;
-
-		if (selected && !(mp->flag & ME_FACE_SEL))
-			continue;
-
-		for (j = 0; j < mp->totloop; j++, ml_index++, ml++) {
-			mlooptag[ml_index] = true;
-		}
-	}
-
-	/* remove stale me->mcol, will be added later */
-	BKE_mesh_tessface_clear(me);
-
-	do_shared_vertexcol(me, mlooptag);
-
-	MEM_freeN(mlooptag);
-
-	DAG_id_tag_update(&me->id, 0);
-
-	return true;
-}
-
-/**
- * Apply callback to each vertex of the active vertex color layer.
- */
-bool ED_vpaint_color_transform(
-        struct Object *ob,
-        VPaintTransform_Callback vpaint_tx_fn,
-        const void *user_data)
-{
-	Mesh *me;
-	const MPoly *mp;
-
-	if (((me = BKE_mesh_from_object(ob)) == NULL) ||
-	    (me->mloopcol == NULL && (make_vertexcol(ob) == false)))
-	{
-		return false;
-	}
-
-	const bool do_face_sel = (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
-	mp = me->mpoly;
-
-	for (int i = 0; i < me->totpoly; i++, mp++) {
-		MLoopCol *lcol = &me->mloopcol[mp->loopstart];
-
-		if (do_face_sel && !(mp->flag & ME_FACE_SEL)) {
-			continue;
-		}
-
-		for (int j = 0; j < mp->totloop; j++, lcol++) {
-			float col[3];
-			rgb_uchar_to_float(col, &lcol->r);
-
-			vpaint_tx_fn(col, user_data, col);
-
-			rgb_float_to_uchar(&lcol->r, col);
-		}
-	}
-
-	/* remove stale me->mcol, will be added later */
-	BKE_mesh_tessface_clear(me);
-
-	DAG_id_tag_update(&me->id, 0);
-
-	return true;
-}
-
-/* XXX: should be re-implemented as a vertex/weight paint 'color correct' operator */
-#if 0
-void vpaint_dogamma(Scene *scene)
-{
-	VPaint *vp = scene->toolsettings->vpaint;
-	Mesh *me;
-	Object *ob;
-	float igam, fac;
-	int a, temp;
-	unsigned char *cp, gamtab[256];
-
-	ob = OBACT;
-	me = BKE_mesh_from_object(ob);
-
-	if (!(ob->mode & OB_MODE_VERTEX_PAINT)) return;
-	if (me == 0 || me->mcol == 0 || me->totface == 0) return;
-
-	igam = 1.0 / vp->gamma;
-	for (a = 0; a < 256; a++) {
-
-		fac = ((float)a) / 255.0;
-		fac = vp->mul * pow(fac, igam);
-
-		temp = 255.9 * fac;
-
-		if (temp <= 0) gamtab[a] = 0;
-		else if (temp >= 255) gamtab[a] = 255;
-		else gamtab[a] = temp;
-	}
-
-	a = 4 * me->totface;
-	cp = (unsigned char *)me->mcol;
-	while (a--) {
-
-		cp[1] = gamtab[cp[1]];
-		cp[2] = gamtab[cp[2]];
-		cp[3] = gamtab[cp[3]];
-
-		cp += 4;
-	}
-}
-#endif
-
-BLI_INLINE unsigned int mcol_blend(unsigned int col1, unsigned int col2, int fac)
-{
-	unsigned char *cp1, *cp2, *cp;
-	int mfac;
-	unsigned int col = 0;
-
-	if (fac == 0) {
-		return col1;
-	}
-
-	if (fac >= 255) {
-		return col2;
-	}
-
-	mfac = 255 - fac;
-
-	cp1 = (unsigned char *)&col1;
-	cp2 = (unsigned char *)&col2;
-	cp  = (unsigned char *)&col;
-
-	cp[0] = divide_round_i((mfac * cp1[0] + fac * cp2[0]), 255);
-	cp[1] = divide_round_i((mfac * cp1[1] + fac * cp2[1]), 255);
-	cp[2] = divide_round_i((mfac * cp1[2] + fac * cp2[2]), 255);
-	cp[3] = 255;
-
-	return col;
-}
-
-BLI_INLINE unsigned int mcol_add(unsigned int col1, unsigned int col2, int fac)
-{
-	unsigned char *cp1, *cp2, *cp;
-	int temp;
-	unsigned int col = 0;
-
-	if (fac == 0) {
-		return col1;
-	}
-
-	cp1 = (unsigned char *)&col1;
-	cp2 = (unsigned char *)&col2;
-	cp  = (unsigned char *)&col;
-
-	temp = cp1[0] + divide_round_i((fac * cp2[0]), 255);
-	cp[0] = (temp > 254) ? 255 : temp;
-	temp = cp1[1] + divide_round_i((fac * cp2[1]), 255);
-	cp[1] = (temp > 254) ? 255 : temp;
-	temp = cp1[2] + divide_round_i((fac * cp2[2]), 255);
-	cp[2] = (temp > 254) ? 255 : temp;
-	cp[3] = 255;
-	
-	return col;
-}
-
-BLI_INLINE unsigned int mcol_sub(unsigned int col1, unsigned int col2, int fac)
-{
-	unsigned char *cp1, *cp2, *cp;
-	int temp;
-	unsigned int col = 0;
-
-	if (fac == 0) {
-		return col1;
-	}
-
-	cp1 = (unsigned char *)&col1;
-	cp2 = (unsigned char *)&col2;
-	cp  = (unsigned char *)&col;
-
-	temp = cp1[0] - divide_round_i((fac * cp2[0]), 255);
-	cp[0] = (temp < 0) ? 0 : temp;
-	temp = cp1[1] - divide_round_i((fac * cp2[1]), 255);
-	cp[1] = (temp < 0) ? 0 : temp;
-	temp = cp1[2] - divide_round_i((fac * cp2[2]), 255);
-	cp[2] = (temp < 0) ? 0 : temp;
-	cp[3] = 255;
-
-	return col;
-}
-
-BLI_INLINE unsigned int mcol_mul(unsigned int col1, unsigned int col2, int fac)
-{
-	unsigned char *cp1, *cp2, *cp;
-	int mfac;
-	unsigned int col = 0;
-
-	if (fac == 0) {
-		return col1;
-	}
-
-	mfac = 255 - fac;
-
-	cp1 = (unsigned char *)&col1;
-	cp2 = (unsigned char *)&col2;
-	cp  = (unsigned char *)&col;
-
-	/* first mul, then blend the fac */
-	cp[0] = divide_round_i(mfac * cp1[0] * 255 + fac * cp2[0] * cp1[0], 255 * 255);
-	cp[1] = divide_round_i(mfac * cp1[1] * 255 + fac * cp2[1] * cp1[1], 255 * 255);
-	cp[2] = divide_round_i(mfac * cp1[2] * 255 + fac * cp2[2] * cp1[2], 255 * 255);
-	cp[3] = 255;
-
-	return col;
-}
-
-BLI_INLINE unsigned int mcol_lighten(unsigned int col1, unsigned int col2, int fac)
-{
-	unsigned char *cp1, *cp2, *cp;
-	int mfac;
-	unsigned int col = 0;
-
-	if (fac == 0) {
-		return col1;
-	}
-	else if (fac >= 255) {
-		return col2;
-	}
-
-	mfac = 255 - fac;
-
-	cp1 = (unsigned char *)&col1;
-	cp2 = (unsigned char *)&col2;
-	cp  = (unsigned char *)&col;
-
-	/* See if are lighter, if so mix, else don't do anything.
-	 * if the paint col is darker then the original, then ignore */
-	if (IMB_colormanagement_get_luminance_byte(cp1) > IMB_colormanagement_get_luminance_byte(cp2)) {
-		return col1;
-	}
-
-	cp[0] = divide_round_i(mfac * cp1[0] + fac * cp2[0], 255);
-	cp[1] = divide_round_i(mfac * cp1[1] + fac * cp2[1], 255);
-	cp[2] = divide_round_i(mfac * cp1[2] + fac * cp2[2], 255);
-	cp[3] = 255;
-
-	return col;
-}
-
-BLI_INLINE unsigned int mcol_darken(unsigned int col1, unsigned int col2, int fac)
-{
-	unsigned char *cp1, *cp2, *cp;
-	int mfac;
-	unsigned int col = 0;
-
-	if (fac == 0) {
-		return col1;
-	}
-	else if (fac >= 255) {
-		return col2;
-	}
-
-	mfac = 255 - fac;
-
-	cp1 = (unsigned char *)&col1;
-	cp2 = (unsigned char *)&col2;
-	cp  = (unsigned char *)&col;
-
-	/* See if were darker, if so mix, else don't do anything.
-	 * if the paint col is brighter then the original, then ignore */
-	if (IMB_colormanagement_get_luminance_byte(cp1) < IMB_colormanagement_get_luminance_byte(cp2)) {
-		return col1;
-	}
-
-	cp[0] = divide_round_i((mfac * cp1[0] + fac * cp2[0]), 255);
-	cp[1] = divide_round_i((mfac * cp1[1] + fac * cp2[1]), 255);
-	cp[2] = divide_round_i((mfac * cp1[2] + fac * cp2[2]), 255);
-	cp[3] = 255;
-	return col;
-}
-
-/* wpaint has 'wpaint_blend_tool' */
-static unsigned int vpaint_blend_tool(const int tool, const unsigned int col,
-                                      const unsigned int paintcol, const int alpha_i)
-{
-	switch (tool) {
-		case PAINT_BLEND_MIX:
-		case PAINT_BLEND_BLUR:     return mcol_blend(col, paintcol, alpha_i);
-		case PAINT_BLEND_ADD:      return mcol_add(col, paintcol, alpha_i);
-		case PAINT_BLEND_SUB:      return mcol_sub(col, paintcol, alpha_i);
-		case PAINT_BLEND_MUL:      return mcol_mul(col, paintcol, alpha_i);
-		case PAINT_BLEND_LIGHTEN:  return mcol_lighten(col, paintcol, alpha_i);
-		case PAINT_BLEND_DARKEN:   return mcol_darken(col, paintcol, alpha_i);
-		default:
-			BLI_assert(0);
-			return 0;
-	}
+	return *(uint *)col;
 }
 
 /* wpaint has 'wpaint_blend' */
-static unsigned int vpaint_blend(VPaint *vp, unsigned int col, unsigned int colorig, const
-                                 unsigned int paintcol, const int alpha_i,
-                                 /* pre scaled from [0-1] --> [0-255] */
-                                 const int brush_alpha_value_i)
+static uint vpaint_blend(
+        VPaint *vp, uint color_curr, uint color_orig,
+        uint color_paint, const int alpha_i,
+        /* pre scaled from [0-1] --> [0-255] */
+        const int brush_alpha_value_i)
 {
 	Brush *brush = BKE_paint_brush(&vp->paint);
 	const int tool = brush->vertexpaint_tool;
 
-	col = vpaint_blend_tool(tool, col, paintcol, alpha_i);
+	uint color_blend = ED_vpaint_blend_tool(tool, color_curr, color_paint, alpha_i);
 
 	/* if no spray, clip color adding with colorig & orig alpha */
 	if ((vp->flag & VP_SPRAY) == 0) {
-		unsigned int testcol, a;
+		uint color_test, a;
 		char *cp, *ct, *co;
-		
-		testcol = vpaint_blend_tool(tool, colorig, paintcol, brush_alpha_value_i);
-		
-		cp = (char *)&col;
-		ct = (char *)&testcol;
-		co = (char *)&colorig;
-		
+
+		color_test = ED_vpaint_blend_tool(tool, color_orig, color_paint, brush_alpha_value_i);
+
+		cp = (char *)&color_blend;
+		ct = (char *)&color_test;
+		co = (char *)&color_orig;
+
 		for (a = 0; a < 4; a++) {
 			if (ct[a] < co[a]) {
 				if (cp[a] < ct[a]) cp[a] = ct[a];
@@ -809,53 +229,23 @@ static unsigned int vpaint_blend(VPaint *vp, unsigned int col, unsigned int colo
 		}
 	}
 
-	return col;
-}
-
-
-static int sample_backbuf_area(ViewContext *vc, int *indexar, int totpoly, int x, int y, float size)
-{
-	struct ImBuf *ibuf;
-	int a, tot = 0, index;
-	
-	/* brecht: disabled this because it obviously fails for
-	 * brushes with size > 64, why is this here? */
-	/*if (size > 64.0) size = 64.0;*/
-	
-	ibuf = ED_view3d_backbuf_read(vc, x - size, y - size, x + size, y + size);
-	if (ibuf) {
-		unsigned int *rt = ibuf->rect;
-
-		memset(indexar, 0, sizeof(int) * (totpoly + 1));
-		
-		size = ibuf->x * ibuf->y;
-		while (size--) {
-				
-			if (*rt) {
-				index = *rt;
-				if (index > 0 && index <= totpoly) {
-					indexar[index] = 1;
-				}
-			}
-		
-			rt++;
-		}
-		
-		for (a = 1; a <= totpoly; a++) {
-			if (indexar[a]) {
-				indexar[tot++] = a;
-			}
-		}
-
-		IMB_freeImBuf(ibuf);
+	if ((brush->flag & BRUSH_LOCK_ALPHA) &&
+	    !ELEM(tool, PAINT_BLEND_ALPHA_SUB, PAINT_BLEND_ALPHA_ADD))
+	{
+		char *cp, *cc;
+		cp = (char *)&color_blend;
+		cc = (char *)&color_curr;
+		cp[3] = cc[3];
 	}
-	
-	return tot;
+
+	return color_blend;
 }
 
+
 /* whats _dl mean? */
-static float calc_vp_strength_col_dl(VPaint *vp, ViewContext *vc, const float co[3],
-                                 const float mval[2], const float brush_size_pressure, float rgba[4])
+static float calc_vp_strength_col_dl(
+        VPaint *vp, const ViewContext *vc, const float co[3],
+        const float mval[2], const float brush_size_pressure, float rgba[4])
 {
 	float co_ss[2];  /* screenspace */
 
@@ -891,10 +281,11 @@ static float calc_vp_strength_col_dl(VPaint *vp, ViewContext *vc, const float co
 	return 0.0f;
 }
 
-static float calc_vp_alpha_col_dl(VPaint *vp, ViewContext *vc,
-                              float vpimat[3][3], const DMCoNo *v_co_no,
-                              const float mval[2],
-                              const float brush_size_pressure, const float brush_alpha_pressure, float rgba[4])
+static float calc_vp_alpha_col_dl(
+        VPaint *vp, const ViewContext *vc,
+        float vpimat[3][3], const DMCoNo *v_co_no,
+        const float mval[2],
+        const float brush_size_pressure, const float brush_alpha_pressure, float rgba[4])
 {
 	float strength = calc_vp_strength_col_dl(vp, vc, v_co_no->co, mval, brush_size_pressure, rgba);
 
@@ -923,59 +314,10 @@ static float calc_vp_alpha_col_dl(VPaint *vp, ViewContext *vc,
 	return 0.0f;
 }
 
-
-BLI_INLINE float wval_blend(const float weight, const float paintval, const float alpha)
-{
-	const float talpha = min_ff(alpha, 1.0f);  /* blending with values over 1 doesn't make sense */
-	return (paintval * talpha) + (weight * (1.0f - talpha));
-}
-BLI_INLINE float wval_add(const float weight, const float paintval, const float alpha)
-{
-	return weight + (paintval * alpha);
-}
-BLI_INLINE float wval_sub(const float weight, const float paintval, const float alpha)
-{
-	return weight - (paintval * alpha);
-}
-BLI_INLINE float wval_mul(const float weight, const float paintval, const float alpha)
-{   /* first mul, then blend the fac */
-	return ((1.0f - alpha) + (alpha * paintval)) * weight;
-}
-BLI_INLINE float wval_lighten(const float weight, const float paintval, const float alpha)
-{
-	return (weight < paintval) ? wval_blend(weight, paintval, alpha) : weight;
-}
-BLI_INLINE float wval_darken(const float weight, const float paintval, const float alpha)
-{
-	return (weight > paintval) ? wval_blend(weight, paintval, alpha) : weight;
-}
-
-
-/* vpaint has 'vpaint_blend_tool' */
-/* result is not clamped from [0-1] */
-static float wpaint_blend_tool(const int tool,
-                               /* dw->weight */
-                               const float weight,
-                               const float paintval, const float alpha)
-{
-	switch (tool) {
-		case PAINT_BLEND_MIX:
-		case PAINT_BLEND_BLUR:     return wval_blend(weight, paintval, alpha);
-		case PAINT_BLEND_ADD:      return wval_add(weight, paintval, alpha);
-		case PAINT_BLEND_SUB:      return wval_sub(weight, paintval, alpha);
-		case PAINT_BLEND_MUL:      return wval_mul(weight, paintval, alpha);
-		case PAINT_BLEND_LIGHTEN:  return wval_lighten(weight, paintval, alpha);
-		case PAINT_BLEND_DARKEN:   return wval_darken(weight, paintval, alpha);
-		default:
-			BLI_assert(0);
-			return 0.0f;
-	}
-}
-
 /* vpaint has 'vpaint_blend' */
-static float wpaint_blend(VPaint *wp, float weight, float weight_prev,
+static float wpaint_blend(VPaint *wp, float weight,
                           const float alpha, float paintval,
-                          const float brush_alpha_value,
+                          const float UNUSED(brush_alpha_value),
                           const short do_flip)
 {
 	Brush *brush = BKE_paint_brush(&wp->paint);
@@ -996,256 +338,19 @@ static float wpaint_blend(VPaint *wp, float weight, float weight_prev,
 		}
 	}
 	
-	weight = wpaint_blend_tool(tool, weight, paintval, alpha);
+	weight = ED_wpaint_blend_tool(tool, weight, paintval, alpha);
 
 	CLAMP(weight, 0.0f, 1.0f);
 	
-	/* if no spray, clip result with orig weight & orig alpha */
-	if ((wp->flag & VP_SPRAY) == 0) {
-		float testw = wpaint_blend_tool(tool, weight_prev, paintval, brush_alpha_value);
-
-		CLAMP(testw, 0.0f, 1.0f);
-		if (testw < weight_prev) {
-			if (weight < testw) weight = testw;
-			else if (weight > weight_prev) weight = weight_prev;
-		}
-		else {
-			if (weight > testw) weight = testw;
-			else if (weight < weight_prev) weight = weight_prev;
-		}
-	}
-
 	return weight;
 }
 
 /* ----------------------------------------------------- */
 
-
-/* sets wp->weight to the closest weight value to vertex */
-/* note: we cant sample frontbuf, weight colors are interpolated too unpredictable */
-static int weight_sample_invoke(bContext *C, wmOperator *op, const wmEvent *event)
-{
-	ViewContext vc;
-	Mesh *me;
-	bool changed = false;
-
-	view3d_set_viewcontext(C, &vc);
-	me = BKE_mesh_from_object(vc.obact);
-
-	if (me && me->dvert && vc.v3d && vc.rv3d && (vc.obact->actdef != 0)) {
-		const bool use_vert_sel = (me->editflag & ME_EDIT_PAINT_VERT_SEL) != 0;
-		int v_idx_best = -1;
-		unsigned int index;
-
-		view3d_operator_needs_opengl(C);
-		ED_view3d_init_mats_rv3d(vc.obact, vc.rv3d);
-
-		if (use_vert_sel) {
-			if (ED_mesh_pick_vert(C, vc.obact, event->mval, &index, ED_MESH_PICK_DEFAULT_VERT_SIZE, true)) {
-				v_idx_best = index;
-			}
-		}
-		else {
-			if (ED_mesh_pick_face_vert(C, vc.obact, event->mval, &index, ED_MESH_PICK_DEFAULT_FACE_SIZE)) {
-				v_idx_best = index;
-			}
-			else if (ED_mesh_pick_face(C, vc.obact, event->mval, &index, ED_MESH_PICK_DEFAULT_FACE_SIZE)) {
-				/* this relies on knowning the internal worksings of ED_mesh_pick_face_vert() */
-				BKE_report(op->reports, RPT_WARNING, "The modifier used does not support deformed locations");
-			}
-		}
-
-		if (v_idx_best != -1) { /* should always be valid */
-			ToolSettings *ts = vc.scene->toolsettings;
-			Brush *brush = BKE_paint_brush(&ts->wpaint->paint);
-			const int vgroup_active = vc.obact->actdef - 1;
-			float vgroup_weight = defvert_find_weight(&me->dvert[v_idx_best], vgroup_active);
-
-			/* use combined weight in multipaint mode, since that's what is displayed to the user in the colors */
-			if (ts->multipaint) {
-				int defbase_tot_sel;
-				const int defbase_tot = BLI_listbase_count(&vc.obact->defbase);
-				bool *defbase_sel = BKE_object_defgroup_selected_get(vc.obact, defbase_tot, &defbase_tot_sel);
-
-				if (defbase_tot_sel > 1) {
-					if (me->editflag & ME_EDIT_MIRROR_X) {
-						BKE_object_defgroup_mirror_selection(
-						        vc.obact, defbase_tot, defbase_sel, defbase_sel, &defbase_tot_sel);
-					}
-
-					vgroup_weight = BKE_defvert_multipaint_collective_weight(
-					        &me->dvert[v_idx_best], defbase_tot, defbase_sel, defbase_tot_sel, ts->auto_normalize);
-
-					/* if autonormalize is enabled, but weights are not normalized, the value can exceed 1 */
-					CLAMP(vgroup_weight, 0.0f, 1.0f);
-				}
-
-				MEM_freeN(defbase_sel);
-			}
-
-			BKE_brush_weight_set(vc.scene, brush, vgroup_weight);
-			changed = true;
-		}
-	}
-
-	if (changed) {
-		/* not really correct since the brush didnt change, but redraws the toolbar */
-		WM_main_add_notifier(NC_BRUSH | NA_EDITED, NULL); /* ts->wpaint->paint.brush */
-
-		return OPERATOR_FINISHED;
-	}
-	else {
-		return OPERATOR_CANCELLED;
-	}
-}
-
-void PAINT_OT_weight_sample(wmOperatorType *ot)
-{
-	/* identifiers */
-	ot->name = "Weight Paint Sample Weight";
-	ot->idname = "PAINT_OT_weight_sample";
-	ot->description = "Use the mouse to sample a weight in the 3D view";
-
-	/* api callbacks */
-	ot->invoke = weight_sample_invoke;
-	ot->poll = weight_paint_mode_poll;
-
-	/* flags */
-	ot->flag = OPTYPE_UNDO;
-}
-
-/* samples cursor location, and gives menu with vertex groups to activate */
-static bool weight_paint_sample_enum_itemf__helper(const MDeformVert *dvert, const int defbase_tot, int *groups)
-{
-	/* this func fills in used vgroup's */
-	bool found = false;
-	int i = dvert->totweight;
-	MDeformWeight *dw;
-	for (dw = dvert->dw; i > 0; dw++, i--) {
-		if (dw->def_nr < defbase_tot) {
-			groups[dw->def_nr] = true;
-			found = true;
-		}
-	}
-	return found;
-}
-static EnumPropertyItem *weight_paint_sample_enum_itemf(
-        bContext *C, PointerRNA *UNUSED(ptr), PropertyRNA *UNUSED(prop), bool *r_free)
-{
-	if (C) {
-		wmWindow *win = CTX_wm_window(C);
-		if (win && win->eventstate) {
-			ViewContext vc;
-			Mesh *me;
-
-			view3d_set_viewcontext(C, &vc);
-			me = BKE_mesh_from_object(vc.obact);
-
-			if (me && me->dvert && vc.v3d && vc.rv3d && vc.obact->defbase.first) {
-				const int defbase_tot = BLI_listbase_count(&vc.obact->defbase);
-				const bool use_vert_sel = (me->editflag & ME_EDIT_PAINT_VERT_SEL) != 0;
-				int *groups = MEM_callocN(defbase_tot * sizeof(int), "groups");
-				bool found = false;
-				unsigned int index;
-
-				const int mval[2] = {
-				    win->eventstate->x - vc.ar->winrct.xmin,
-				    win->eventstate->y - vc.ar->winrct.ymin,
-				};
-
-				view3d_operator_needs_opengl(C);
-				ED_view3d_init_mats_rv3d(vc.obact, vc.rv3d);
-
-				if (use_vert_sel) {
-					if (ED_mesh_pick_vert(C, vc.obact, mval, &index, ED_MESH_PICK_DEFAULT_VERT_SIZE, true)) {
-						MDeformVert *dvert = &me->dvert[index];
-						found |= weight_paint_sample_enum_itemf__helper(dvert, defbase_tot, groups);
-					}
-				}
-				else {
-					if (ED_mesh_pick_face(C, vc.obact, mval, &index, ED_MESH_PICK_DEFAULT_FACE_SIZE)) {
-						MPoly *mp = &me->mpoly[index];
-						unsigned int fidx = mp->totloop - 1;
-
-						do {
-							MDeformVert *dvert = &me->dvert[me->mloop[mp->loopstart + fidx].v];
-							found |= weight_paint_sample_enum_itemf__helper(dvert, defbase_tot, groups);
-						} while (fidx--);
-					}
-				}
-
-				if (found == false) {
-					MEM_freeN(groups);
-				}
-				else {
-					EnumPropertyItem *item = NULL, item_tmp = {0};
-					int totitem = 0;
-					int i = 0;
-					bDeformGroup *dg;
-					for (dg = vc.obact->defbase.first; dg && i < defbase_tot; i++, dg = dg->next) {
-						if (groups[i]) {
-							item_tmp.identifier = item_tmp.name = dg->name;
-							item_tmp.value = i;
-							RNA_enum_item_add(&item, &totitem, &item_tmp);
-						}
-					}
-
-					RNA_enum_item_end(&item, &totitem);
-					*r_free = true;
-
-					MEM_freeN(groups);
-					return item;
-				}
-			}
-		}
-	}
-
-	return DummyRNA_NULL_items;
-}
-
-static int weight_sample_group_exec(bContext *C, wmOperator *op)
-{
-	int type = RNA_enum_get(op->ptr, "group");
-	ViewContext vc;
-	view3d_set_viewcontext(C, &vc);
-
-	BLI_assert(type + 1 >= 0);
-	vc.obact->actdef = type + 1;
-
-	DAG_id_tag_update(&vc.obact->id, OB_RECALC_DATA);
-	WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, vc.obact);
-	return OPERATOR_FINISHED;
-}
-
-/* TODO, we could make this a menu into OBJECT_OT_vertex_group_set_active rather than its own operator */
-void PAINT_OT_weight_sample_group(wmOperatorType *ot)
-{
-	PropertyRNA *prop = NULL;
-
-	/* identifiers */
-	ot->name = "Weight Paint Sample Group";
-	ot->idname = "PAINT_OT_weight_sample_group";
-	ot->description = "Select one of the vertex groups available under current mouse position";
-
-	/* api callbacks */
-	ot->exec = weight_sample_group_exec;
-	ot->invoke = WM_menu_invoke;
-	ot->poll = weight_paint_mode_poll;
-
-	/* flags */
-	ot->flag = OPTYPE_UNDO;
-
-	/* keyingset to use (dynamic enum) */
-	prop = RNA_def_enum(ot->srna, "group", DummyRNA_DEFAULT_items, 0, "Keying Set", "The Keying Set to use");
-	RNA_def_enum_funcs(prop, weight_paint_sample_enum_itemf);
-	RNA_def_property_flag(prop, PROP_ENUM_NO_TRANSLATE);
-	ot->prop = prop;
-}
-
 static void do_weight_paint_normalize_all(MDeformVert *dvert, const int defbase_tot, const bool *vgroup_validmap)
 {
 	float sum = 0.0f, fac;
-	unsigned int i, tot = 0;
+	uint i, tot = 0;
 	MDeformWeight *dw;
 
 	for (i = dvert->totweight, dw = dvert->dw; i != 0; i--, dw++) {
@@ -1291,7 +396,7 @@ static bool do_weight_paint_normalize_all_locked(
 	float sum = 0.0f, fac;
 	float sum_unlock = 0.0f;
 	float lock_weight = 0.0f;
-	unsigned int i, tot = 0;
+	uint i, tot = 0;
 	MDeformWeight *dw;
 
 	if (lock_flags == NULL) {
@@ -1476,7 +581,7 @@ static void multipaint_apply_change(MDeformVert *dvert, const int defbase_tot, f
  * Variables stored both for 'active' and 'mirror' sides.
  */
 struct WeightPaintGroupData {
-	/** index of active group or its mirror 
+	/** index of active group or its mirror
 	 *
 	 * - 'active' is always `ob->actdef`.
 	 * - 'mirror' is -1 when 'ME_EDIT_MIRROR_X' flag id disabled,
@@ -1524,14 +629,14 @@ static void do_weight_paint_vertex_single(
         /* vars which remain the same for every vert */
         VPaint *wp, Object *ob, const WeightPaintInfo *wpi,
         /* vars which change on each stroke */
-        const unsigned int index, float alpha, float paintweight
+        const uint index, float alpha, float paintweight
         )
 {
 	Mesh *me = ob->data;
 	MDeformVert *dv = &me->dvert[index];
 	bool topology = (me->editflag & ME_EDIT_MIRROR_TOPO) != 0;
-	
-	MDeformWeight *dw, *dw_prev;
+
+	MDeformWeight *dw;
 
 	/* mirror vars */
 	int index_mirr;
@@ -1542,14 +647,12 @@ static void do_weight_paint_vertex_single(
 
 	if (wp->flag & VP_ONLYVGROUP) {
 		dw = defvert_find_index(dv, wpi->active.index);
-		dw_prev = defvert_find_index(wp->wpaint_prev + index, wpi->active.index);
 	}
 	else {
 		dw = defvert_verify_index(dv, wpi->active.index);
-		dw_prev = defvert_verify_index(wp->wpaint_prev + index, wpi->active.index);
 	}
 
-	if (dw == NULL || dw_prev == NULL) {
+	if (dw == NULL) {
 		return;
 	}
 
@@ -1607,7 +710,7 @@ static void do_weight_paint_vertex_single(
 	 * then there is no need to run the more complicated checks */
 
 	{
-		dw->weight = wpaint_blend(wp, dw->weight, dw_prev->weight, alpha, paintweight,
+		dw->weight = wpaint_blend(wp, dw->weight, alpha, paintweight,
 		                          wpi->brush_alpha_value, wpi->do_flip);
 
 		/* WATCH IT: take care of the ordering of applying mirror -> normalize,
@@ -1669,11 +772,10 @@ static void do_weight_paint_vertex_multi(
         /* vars which remain the same for every vert */
         VPaint *wp, Object *ob, const WeightPaintInfo *wpi,
         /* vars which change on each stroke */
-        const unsigned int index, float alpha, float paintweight)
+        const uint index, float alpha, float paintweight)
 {
 	Mesh *me = ob->data;
 	MDeformVert *dv = &me->dvert[index];
-	MDeformVert *dv_prev = &wp->wpaint_prev[index];
 	bool topology = (me->editflag & ME_EDIT_MIRROR_TOPO) != 0;
 
 	/* mirror vars */
@@ -1681,7 +783,7 @@ static void do_weight_paint_vertex_multi(
 	MDeformVert *dv_mirr = NULL;
 
 	/* weights */
-	float oldw, curw, neww, change, curw_mirr, change_mirr;
+	float curw, neww, change, curw_mirr, change_mirr;
 
 	/* from now on we can check if mirrors enabled if this var is -1 and not bother with the flag */
 	if (me->editflag & ME_EDIT_MIRROR_X) {
@@ -1693,8 +795,6 @@ static void do_weight_paint_vertex_multi(
 	}
 
 	/* compute weight change by applying the brush to average or sum of group weights */
-	oldw = BKE_defvert_multipaint_collective_weight(
-	        dv_prev, wpi->defbase_tot, wpi->defbase_sel, wpi->defbase_tot_sel, wpi->do_auto_normalize);
 	curw = BKE_defvert_multipaint_collective_weight(
 	        dv, wpi->defbase_tot, wpi->defbase_sel, wpi->defbase_tot_sel, wpi->do_auto_normalize);
 
@@ -1703,7 +803,7 @@ static void do_weight_paint_vertex_multi(
 		return;
 	}
 
-	neww = wpaint_blend(wp, curw, oldw, alpha, paintweight, wpi->brush_alpha_value, wpi->do_flip);
+	neww = wpaint_blend(wp, curw, alpha, paintweight, wpi->brush_alpha_value, wpi->do_flip);
 
 	change = neww / curw;
 
@@ -1759,7 +859,7 @@ static void do_weight_paint_vertex(
         /* vars which remain the same for every vert */
         VPaint *wp, Object *ob, const WeightPaintInfo *wpi,
         /* vars which change on each stroke */
-        const unsigned int index, float alpha, float paintweight)
+        const uint index, float alpha, float paintweight)
 {
 	if (wpi->do_multipaint) {
 		do_weight_paint_vertex_multi(wp, ob, wpi, index, alpha, paintweight);
@@ -1769,6 +869,103 @@ static void do_weight_paint_vertex(
 	}
 }
 
+
+/* Toggle operator for turning vertex paint mode on or off (copied from sculpt.c) */
+static void vertex_paint_init_session(Scene *scene, Object *ob)
+{
+	if (ob->sculpt == NULL) {
+		ob->sculpt = MEM_callocN(sizeof(SculptSession), "sculpt session");
+		BKE_sculpt_update_mesh_elements(scene, scene->toolsettings->sculpt, ob, 0, false);
+	}
+}
+
+static void vertex_paint_init_session_data(const ToolSettings *ts, Object *ob)
+{
+	/* Create maps */
+	struct SculptVertexPaintGeomMap *gmap = NULL;
+	const Brush *brush = NULL;
+	if (ob->mode == OB_MODE_VERTEX_PAINT) {
+		gmap = &ob->sculpt->mode.vpaint.gmap;
+		brush = BKE_paint_brush(&ts->vpaint->paint);
+		ob->sculpt->mode_type = OB_MODE_VERTEX_PAINT;
+	}
+	else if (ob->mode == OB_MODE_WEIGHT_PAINT) {
+		gmap = &ob->sculpt->mode.wpaint.gmap;
+		brush = BKE_paint_brush(&ts->wpaint->paint);
+		ob->sculpt->mode_type = OB_MODE_WEIGHT_PAINT;
+	}
+	else {
+		ob->sculpt->mode_type = 0;
+		BLI_assert(0);
+		return;
+	}
+
+	Mesh *me = ob->data;
+
+	if (gmap->vert_to_loop == NULL) {
+		gmap->vert_map_mem = NULL;
+		gmap->vert_to_loop = NULL;
+		gmap->poly_map_mem = NULL;
+		gmap->vert_to_poly = NULL;
+		BKE_mesh_vert_loop_map_create(
+		        &gmap->vert_to_loop,
+		        &gmap->vert_map_mem,
+		        me->mpoly, me->mloop, me->totvert, me->totpoly, me->totloop);
+		BKE_mesh_vert_poly_map_create(
+		        &gmap->vert_to_poly,
+		        &gmap->poly_map_mem,
+		        me->mpoly, me->mloop, me->totvert, me->totpoly, me->totloop);
+	}
+
+	/* Create average brush arrays */
+	if (ob->mode == OB_MODE_VERTEX_PAINT) {
+		if ((ts->vpaint->flag & VP_SPRAY) == 0) {
+			if (ob->sculpt->mode.vpaint.previous_color == NULL) {
+				ob->sculpt->mode.vpaint.previous_color =
+				        MEM_callocN(me->totloop * sizeof(uint), __func__);
+			}
+		}
+		else {
+			MEM_SAFE_FREE(ob->sculpt->mode.vpaint.previous_color);
+		}
+
+		if (brush && brush->flag & BRUSH_ACCUMULATE) {
+			if (ob->sculpt->mode.vpaint.previous_accum == NULL) {
+				ob->sculpt->mode.vpaint.previous_accum =
+				        MEM_callocN(me->totloop * sizeof(float), __func__);
+			}
+		}
+		else {
+			MEM_SAFE_FREE(ob->sculpt->mode.vpaint.previous_accum);
+		}
+	}
+	else if (ob->mode == OB_MODE_WEIGHT_PAINT) {
+		if ((ts->wpaint->flag & VP_SPRAY) == 0) {
+			if (ob->sculpt->mode.wpaint.alpha_weight == NULL) {
+				ob->sculpt->mode.wpaint.alpha_weight =
+				        MEM_callocN(me->totvert * sizeof(float), __func__);
+			}
+			if (ob->sculpt->mode.wpaint.previous_weight == NULL) {
+				ob->sculpt->mode.wpaint.previous_weight =
+				        MEM_mallocN(me->totvert * sizeof(float), __func__);
+			}
+		}
+		else {
+			MEM_SAFE_FREE(ob->sculpt->mode.wpaint.alpha_weight);
+		}
+		if (brush && brush->flag & BRUSH_ACCUMULATE) {
+			if (ob->sculpt->mode.wpaint.previous_accum == NULL) {
+				ob->sculpt->mode.wpaint.previous_accum =
+				        MEM_callocN(me->totvert * sizeof(float), __func__);
+			}
+		}
+		else {
+			MEM_SAFE_FREE(ob->sculpt->mode.wpaint.previous_accum);
+		}
+	}
+
+}
+
 /* *************** set wpaint operator ****************** */
 
 /**
@@ -1805,6 +1002,14 @@ static int wpaint_mode_toggle_exec(bContext *C, wmOperator *op)
 		ED_mesh_mirror_spatial_table(NULL, NULL, NULL, NULL, 'e');
 		ED_mesh_mirror_topo_table(NULL, NULL, 'e');
 
+		/* If the cache is not released by a cancel or a done, free it now. */
+		if (ob->sculpt->cache) {
+			sculpt_cache_free(ob->sculpt->cache);
+			ob->sculpt->cache = NULL;
+		}
+
+		BKE_sculptsession_free(ob);
+
 		paint_cursor_delete_textures();
 	}
 	else {
@@ -1820,6 +1025,12 @@ static int wpaint_mode_toggle_exec(bContext *C, wmOperator *op)
 		/* weight paint specific */
 		ED_mesh_mirror_spatial_table(ob, NULL, NULL, NULL, 's');
 		ED_vgroup_sync_from_pose(ob);
+
+		/* Create vertex/weight paint mode session data */
+		if (ob->sculpt) {
+			BKE_sculptsession_free(ob);
+		}
+		vertex_paint_init_session(scene, ob);
 	}
 	
 	/* Weightpaint works by overriding colors in mesh,
@@ -1866,18 +1077,8 @@ void PAINT_OT_weight_paint_toggle(wmOperatorType *ot)
 
 /* ************ weight paint operator ********** */
 
-enum eWPaintFlag {
-	WPAINT_ENSURE_MIRROR = (1 << 0),
-};
-
-struct WPaintVGroupIndex {
-	int active;
-	int mirror;
-};
-
 struct WPaintData {
 	ViewContext vc;
-	int *indexar;
 
 	struct WeightPaintGroupData active, mirror;
 
@@ -1895,110 +1096,136 @@ struct WPaintData {
 	int defbase_tot_sel;          /* number of selected groups */
 	bool do_multipaint;           /* true if multipaint enabled and multiple groups selected */
 
-	/* variables for blur */
-	struct {
-		MeshElemMap *vmap;
-		int *vmap_mem;
-	} blur_data;
-
-	BLI_Stack *accumulate_stack;  /* for reuse (WPaintDefer) */
-
 	int defbase_tot;
 };
 
-/* ensure we have data on wpaint start, add if needed */
-static bool wpaint_ensure_data(
-        bContext *C, wmOperator *op,
-        enum eWPaintFlag flag, struct WPaintVGroupIndex *vgroup_index)
+/* Initialize the stroke cache invariants from operator properties */
+static void vwpaint_update_cache_invariants(
+        bContext *C, VPaint *vd, SculptSession *ss, wmOperator *op, const float mouse[2])
 {
+	StrokeCache *cache;
 	Scene *scene = CTX_data_scene(C);
+	UnifiedPaintSettings *ups = &CTX_data_tool_settings(C)->unified_paint_settings;
+	Brush *brush = BKE_paint_brush(&vd->paint);
+	ViewContext *vc = paint_stroke_view_context(op->customdata);
 	Object *ob = CTX_data_active_object(C);
-	Mesh *me = BKE_mesh_from_object(ob);
+	float mat[3][3];
+	float view_dir[3] = {0.0f, 0.0f, 1.0f};
+	int mode;
 
-	if (vgroup_index) {
-		vgroup_index->active = -1;
-		vgroup_index->mirror = -1;
+	/* VW paint needs to allocate stroke cache before update is called. */
+	if (!ss->cache) {
+		cache = MEM_callocN(sizeof(StrokeCache), "stroke cache");
+		ss->cache = cache;
 	}
-
-	if (scene->obedit) {
-		return false;
+	else {
+		cache = ss->cache;
 	}
 
-	if (me == NULL || me->totpoly == 0) {
-		return false;
-	}
+	/* Initial mouse location */
+	if (mouse)
+		copy_v2_v2(cache->initial_mouse, mouse);
+	else
+		zero_v2(cache->initial_mouse);
 
-	/* if nothing was added yet, we make dverts and a vertex deform group */
-	if (!me->dvert) {
-		BKE_object_defgroup_data_create(&me->id);
-		WM_event_add_notifier(C, NC_GEOM | ND_DATA, me);
-	}
+	mode = RNA_enum_get(op->ptr, "mode");
+	cache->invert = mode == BRUSH_STROKE_INVERT;
+	cache->alt_smooth = mode == BRUSH_STROKE_SMOOTH;
+	/* not very nice, but with current events system implementation
+	* we can't handle brush appearance inversion hotkey separately (sergey) */
+	if (cache->invert) ups->draw_inverted = true;
+	else ups->draw_inverted = false;
 
-	/* this happens on a Bone select, when no vgroup existed yet */
-	if (ob->actdef <= 0) {
-		Object *modob;
-		if ((modob = modifiers_isDeformedByArmature(ob))) {
-			Bone *actbone = ((bArmature *)modob->data)->act_bone;
-			if (actbone) {
-				bPoseChannel *pchan = BKE_pose_channel_find_name(modob->pose, actbone->name);
+	copy_v2_v2(cache->mouse, cache->initial_mouse);
+	/* Truly temporary data that isn't stored in properties */
+	cache->vc = vc;
+	cache->brush = brush;
+	cache->first_time = 1;
 
-				if (pchan) {
-					bDeformGroup *dg = defgroup_find_name(ob, pchan->name);
-					if (dg == NULL) {
-						dg = BKE_object_defgroup_add_name(ob, pchan->name);  /* sets actdef */
-					}
-					else {
-						int actdef = 1 + BLI_findindex(&ob->defbase, dg);
-						BLI_assert(actdef >= 0);
-						ob->actdef = actdef;
-					}
-				}
-			}
-		}
-	}
-	if (BLI_listbase_is_empty(&ob->defbase)) {
-		BKE_object_defgroup_add(ob);
-	}
+	/* cache projection matrix */
+	ED_view3d_ob_project_mat_get(cache->vc->rv3d, ob, cache->projection_mat);
 
-	/* ensure we don't try paint onto an invalid group */
-	if (ob->actdef <= 0) {
-		BKE_report(op->reports, RPT_WARNING, "No active vertex group for painting, aborting");
-		return false;
+	invert_m4_m4(ob->imat, ob->obmat);
+	copy_m3_m4(mat, cache->vc->rv3d->viewinv);
+	mul_m3_v3(mat, view_dir);
+	copy_m3_m4(mat, ob->imat);
+	mul_m3_v3(mat, view_dir);
+	normalize_v3_v3(cache->true_view_normal, view_dir);
+
+	copy_v3_v3(cache->view_normal, cache->true_view_normal);
+	cache->bstrength = BKE_brush_alpha_get(scene, brush);
+	cache->is_last_valid = false;
+}
+
+/* Initialize the stroke cache variants from operator properties */
+static void vwpaint_update_cache_variants(bContext *C, VPaint *vd, Object *ob, PointerRNA *ptr)
+{
+	Scene *scene = CTX_data_scene(C);
+	SculptSession *ss = ob->sculpt;
+	StrokeCache *cache = ss->cache;
+	Brush *brush = BKE_paint_brush(&vd->paint);
+
+	/* This effects the actual brush radius, so things farther away
+	 * are compared with a larger radius and vise versa. */
+	if (cache->first_time) {
+		RNA_float_get_array(ptr, "location", cache->true_location);
 	}
 
-	if (vgroup_index) {
-		vgroup_index->active = ob->actdef - 1;
+	RNA_float_get_array(ptr, "mouse", cache->mouse);
+
+	/* XXX: Use pressure value from first brush step for brushes which don't
+	 * support strokes (grab, thumb). They depends on initial state and
+	 * brush coord/pressure/etc.
+	 * It's more an events design issue, which doesn't split coordinate/pressure/angle
+	 * changing events. We should avoid this after events system re-design */
+	if (paint_supports_dynamic_size(brush, ePaintSculpt) || cache->first_time) {
+		cache->pressure = RNA_float_get(ptr, "pressure");
 	}
 
-	if (flag & WPAINT_ENSURE_MIRROR) {
-		if (me->editflag & ME_EDIT_MIRROR_X) {
-			int mirror = wpaint_mirror_vgroup_ensure(ob, ob->actdef - 1);
-			if (vgroup_index) {
-				vgroup_index->mirror = mirror;
-			}
+	/* Truly temporary data that isn't stored in properties */
+	if (cache->first_time) {
+		if (!BKE_brush_use_locked_size(scene, brush)) {
+			cache->initial_radius = paint_calc_object_space_radius(
+			        cache->vc, cache->true_location, BKE_brush_size_get(scene, brush));
+			BKE_brush_unprojected_radius_set(scene, brush, cache->initial_radius);
+		}
+		else {
+			cache->initial_radius = BKE_brush_unprojected_radius_get(scene, brush);
 		}
 	}
 
-	return true;
+	if (BKE_brush_use_size_pressure(scene, brush) && paint_supports_dynamic_size(brush, ePaintSculpt)) {
+		cache->radius = cache->initial_radius * cache->pressure;
+	}
+	else {
+		cache->radius = cache->initial_radius;
+	}
+
+	cache->radius_squared = cache->radius * cache->radius;
+
+	if (ss->pbvh) {
+		BKE_pbvh_update(ss->pbvh, PBVH_UpdateRedraw, NULL);
+		BKE_pbvh_update(ss->pbvh, PBVH_UpdateBB, NULL);
+	}
 }
 
-static bool wpaint_stroke_test_start(bContext *C, wmOperator *op, const float UNUSED(mouse[2]))
+static bool wpaint_stroke_test_start(bContext *C, wmOperator *op, const float mouse[2])
 {
 	Scene *scene = CTX_data_scene(C);
 	struct PaintStroke *stroke = op->customdata;
 	ToolSettings *ts = scene->toolsettings;
-	VPaint *wp = ts->wpaint;
 	Object *ob = CTX_data_active_object(C);
 	Mesh *me = BKE_mesh_from_object(ob);
 	struct WPaintData *wpd;
 	struct WPaintVGroupIndex vgroup_index;
 	int defbase_tot, defbase_tot_sel;
 	bool *defbase_sel;
-	const Brush *brush = BKE_paint_brush(&wp->paint);
+	SculptSession *ss = ob->sculpt;
+	VPaint *vd = CTX_data_tool_settings(C)->wpaint;
 
 	float mat[4][4], imat[4][4];
 
-	if (wpaint_ensure_data(C, op, WPAINT_ENSURE_MIRROR, &vgroup_index) == false) {
+	if (ED_wpaint_ensure_data(C, op->reports, WPAINT_ENSURE_MIRROR, &vgroup_index) == false) {
 		return false;
 	}
 
@@ -2094,62 +1321,483 @@ static bool wpaint_stroke_test_start(bContext *C, wmOperator *op, const float UN
 	}
 
 	/* painting on subsurfs should give correct points too, this returns me->totvert amount */
+	ob->sculpt->building_vp_handle = true;
 	wpd->vp_handle = ED_vpaint_proj_handle_create(scene, ob, &wpd->vertexcosnos);
-
-	wpd->indexar = get_indexarray(me);
-	copy_wpaint_prev(wp, me->dvert, me->totvert);
-
-	if (brush->vertexpaint_tool == PAINT_BLEND_BLUR) {
-		BKE_mesh_vert_edge_vert_map_create(
-		        &wpd->blur_data.vmap, &wpd->blur_data.vmap_mem,
-		        me->medge, me->totvert, me->totedge);
-	}
-
-	if ((brush->vertexpaint_tool == PAINT_BLEND_BLUR) &&
-	    (brush->flag & BRUSH_ACCUMULATE))
-	{
-		wpd->accumulate_stack = BLI_stack_new(sizeof(struct WPaintDefer), __func__);
-	}
+	ob->sculpt->building_vp_handle = false;
 
 	/* imat for normals */
 	mul_m4_m4m4(mat, wpd->vc.rv3d->viewmat, ob->obmat);
 	invert_m4_m4(imat, mat);
 	copy_m3_m4(wpd->wpimat, imat);
 
+	/* If not previously created, create vertex/weight paint mode session data */
+	vertex_paint_init_session(scene, ob);
+	vwpaint_update_cache_invariants(C, vd, ss, op, mouse);
+	vertex_paint_init_session_data(ts, ob);
+
+	if (ss->mode.wpaint.previous_weight != NULL) {
+		copy_vn_fl(ss->mode.wpaint.previous_weight, me->totvert, -1.0f);
+	}
+
 	return true;
 }
 
-static float wpaint_blur_weight_single(const MDeformVert *dv, const WeightPaintInfo *wpi)
+static float dot_vf3vs3(const float brushNormal[3], const short vertexNormal[3])
 {
-	return defvert_find_weight(dv, wpi->active.index);
+	float normal[3];
+	normal_short_to_float_v3(normal, vertexNormal);
+	return dot_v3v3(brushNormal, normal);
 }
 
-static float wpaint_blur_weight_multi(const MDeformVert *dv, const WeightPaintInfo *wpi)
+static void get_brush_alpha_data(
+        Scene *scene, SculptSession *ss, Brush *brush,
+        float *r_brush_size_pressure, float *r_brush_alpha_value, float *r_brush_alpha_pressure)
 {
-	float weight = BKE_defvert_multipaint_collective_weight(
-	        dv, wpi->defbase_tot, wpi->defbase_sel, wpi->defbase_tot_sel, wpi->do_auto_normalize);
-	CLAMP(weight, 0.0f, 1.0f);
-	return weight;
+	*r_brush_size_pressure =
+	        BKE_brush_size_get(scene, brush) *
+	        (BKE_brush_use_size_pressure(scene, brush) ? ss->cache->pressure : 1.0f);
+	*r_brush_alpha_value =
+	        BKE_brush_alpha_get(scene, brush);
+	*r_brush_alpha_pressure =
+	        (BKE_brush_use_alpha_pressure(scene, brush) ? ss->cache->pressure : 1.0f);
 }
 
-static float wpaint_blur_weight_calc_from_connected(
-        const MDeformVert *dvert, WeightPaintInfo *wpi, struct WPaintData *wpd, const unsigned int vidx,
-        float (*blur_weight_func)(const MDeformVert *, const WeightPaintInfo *))
+static void do_wpaint_brush_blur_task_cb_ex(
+        void *userdata, void *UNUSED(userdata_chunk), const int n, const int UNUSED(thread_id))
 {
-	const MeshElemMap *map = &wpd->blur_data.vmap[vidx];
-	float paintweight;
-	if (map->count != 0) {
-		paintweight = 0.0f;
-		for (int j = 0; j < map->count; j++) {
-			paintweight += blur_weight_func(&dvert[map->indices[j]], wpi);
+	SculptThreadedTaskData *data = userdata;
+	SculptSession *ss = data->ob->sculpt;
+	CCGDerivedMesh *ccgdm = BKE_pbvh_get_ccgdm(ss->pbvh);
+	const struct SculptVertexPaintGeomMap *gmap = &ss->mode.wpaint.gmap;
+
+	Brush *brush = data->brush;
+	StrokeCache *cache = ss->cache;
+	Scene *scene = CTX_data_scene(data->C);
+
+	const float brush_strength = cache->bstrength;
+	float brush_size_pressure, brush_alpha_value, brush_alpha_pressure;
+	get_brush_alpha_data(scene, ss, brush, &brush_size_pressure, &brush_alpha_value, &brush_alpha_pressure);
+	const bool use_face_sel = (data->me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
+	const bool use_vert_sel = (data->me->editflag & ME_EDIT_PAINT_VERT_SEL) != 0;
+
+	SculptBrushTest test;
+	sculpt_brush_test_init(ss, &test);
+
+	/* For each vertex */
+	PBVHVertexIter vd;
+	BKE_pbvh_vertex_iter_begin(ss->pbvh, data->nodes[n], vd, PBVH_ITER_UNIQUE)
+	{
+		/* Test to see if the vertex coordinates are within the spherical brush region. */
+		if (sculpt_brush_test_sq(&test, vd.co)) {
+			/* For grid based pbvh, take the vert whose loop coopresponds to the current grid.
+			 * Otherwise, take the current vert. */
+			const int v_index = ccgdm ? data->me->mloop[vd.grid_indices[vd.g]].v : vd.vert_indices[vd.i];
+			const float grid_alpha = ccgdm ? 1.0f / vd.gridsize : 1.0f;
+			const char v_flag = data->me->mvert[v_index].flag;
+			/* If the vertex is selected */
+			if (!(use_face_sel || use_vert_sel) || v_flag & SELECT) {
+				/* Get the average poly weight */
+				int total_hit_loops = 0;
+				float weight_final = 0.0f;
+				for (int j = 0; j < gmap->vert_to_poly[v_index].count; j++) {
+					const int p_index = gmap->vert_to_poly[v_index].indices[j];
+					const MPoly *mp = &data->me->mpoly[p_index];
+
+					total_hit_loops += mp->totloop;
+					for (int k = 0; k < mp->totloop; k++) {
+						const int l_index = mp->loopstart + k;
+						const MLoop *ml = &data->me->mloop[l_index];
+						const MDeformVert *dv = &data->me->dvert[ml->v];
+						weight_final += defvert_find_weight(dv, data->wpi->active.index);
+					}
+				}
+
+				/* Apply the weight to the vertex. */
+				if (total_hit_loops != 0) {
+					const float view_dot = (vd.no) ? dot_vf3vs3(cache->sculpt_normal_symm, vd.no) : 1.0;
+					if (view_dot > 0.0f) {
+						const float brush_fade = BKE_brush_curve_strength(brush, sqrtf(test.dist), cache->radius);
+						float final_alpha =
+						        view_dot * brush_fade * brush_strength *
+						        grid_alpha * brush_alpha_pressure;
+
+						if (brush->flag & BRUSH_ACCUMULATE) {
+							float mask_accum = ss->mode.wpaint.previous_accum[v_index];
+							final_alpha = min_ff(final_alpha + mask_accum, brush_strength);
+							ss->mode.wpaint.previous_accum[v_index] = final_alpha;
+						}
+
+						weight_final /= total_hit_loops;
+						/* Only paint visable verts */
+						do_weight_paint_vertex(
+						        data->vp, data->ob, data->wpi,
+						        v_index, final_alpha, weight_final);
+					}
+				}
+			}
 		}
-		paintweight /= map->count;
 	}
-	else {
-		paintweight = blur_weight_func(&dvert[vidx], wpi);
+	BKE_pbvh_vertex_iter_end;
+}
+
+static void do_wpaint_brush_smear_task_cb_ex(
+        void *userdata, void *UNUSED(userdata_chunk), const int n, const int UNUSED(thread_id))
+{
+	SculptThreadedTaskData *data = userdata;
+	SculptSession *ss = data->ob->sculpt;
+	CCGDerivedMesh *ccgdm = BKE_pbvh_get_ccgdm(ss->pbvh);
+	const struct SculptVertexPaintGeomMap *gmap = &ss->mode.wpaint.gmap;
+
+	Brush *brush = data->brush;
+	Scene *scene = CTX_data_scene(data->C);
+	StrokeCache *cache = ss->cache;
+	const float brush_strength = cache->bstrength;
+	float brush_size_pressure, brush_alpha_value, brush_alpha_pressure;
+	get_brush_alpha_data(scene, ss, brush, &brush_size_pressure, &brush_alpha_value, &brush_alpha_pressure);
+	const bool use_face_sel = (data->me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
+	const bool use_vert_sel = (data->me->editflag & ME_EDIT_PAINT_VERT_SEL) != 0;
+	float brush_dir[3];
+
+	sub_v3_v3v3(brush_dir, cache->location, cache->last_location);
+	project_plane_v3_v3v3(brush_dir, brush_dir, cache->view_normal);
+
+	if (normalize_v3(brush_dir) != 0.0f) {
+
+		SculptBrushTest test;
+		sculpt_brush_test_init(ss, &test);
+
+		/* For each vertex */
+		PBVHVertexIter vd;
+		BKE_pbvh_vertex_iter_begin(ss->pbvh, data->nodes[n], vd, PBVH_ITER_UNIQUE)
+		{
+			/* Test to see if the vertex coordinates are within the spherical brush region. */
+			if (sculpt_brush_test_fast(&test, vd.co)) {
+				const float view_dot = (vd.no) ? dot_vf3vs3(cache->sculpt_normal_symm, vd.no) : 1.0;
+				if (view_dot > 0.0f) {
+					bool do_color = false;
+
+					/* For grid based pbvh, take the vert whose loop cooresponds to the current grid.
+					 * Otherwise, take the current vert. */
+					const int v_index = ccgdm ? data->me->mloop[vd.grid_indices[vd.g]].v : vd.vert_indices[vd.i];
+					const float grid_alpha = ccgdm ? 1.0f / vd.gridsize : 1.0f;
+					const MVert *mv_curr = &data->me->mvert[v_index];
+
+					/* If the vertex is selected */
+					if (!(use_face_sel || use_vert_sel) || mv_curr->flag & SELECT) {
+						/* Minimum dot product between brush direction and current
+						 * to neighbor direction is 0.0, meaning orthogonal. */
+						float stroke_dot_max = 0.0f;
+
+						/* Get the color of the loop in the opposite direction of the brush movement
+						 * (this callback is specifically for smear.) */
+						float weight_final = 0.0;
+						for (int j = 0; j < gmap->vert_to_poly[v_index].count; j++) {
+							const int p_index = gmap->vert_to_poly[v_index].indices[j];
+							const MPoly *mp = &data->me->mpoly[p_index];
+							const MLoop *ml_other = &data->me->mloop[mp->loopstart];
+							for (int k = 0; k < mp->totloop; k++, ml_other++) {
+								const uint v_other_index = ml_other->v;
+								if (v_other_index != v_index) {
+									const MVert *mv_other = &data->me->mvert[v_other_index];
+
+									/* Get the direction from the selected vert to the neighbor. */
+									float other_dir[3];
+									sub_v3_v3v3(other_dir, mv_curr->co, mv_other->co);
+									project_plane_v3_v3v3(other_dir, other_dir, cache->view_normal);
+
+									normalize_v3(other_dir);
+
+									const float stroke_dot = dot_v3v3(other_dir, brush_dir);
+
+									if (stroke_dot > stroke_dot_max) {
+										stroke_dot_max = stroke_dot;
+										MDeformVert *dv = &data->me->dvert[v_other_index];
+										weight_final = defvert_find_weight(dv, data->wpi->active.index);
+										do_color = true;
+									}
+								}
+							}
+						}
+						/* Apply weight to vertex */
+						if (do_color) {
+							const float brush_fade = BKE_brush_curve_strength(brush, test.dist, cache->radius);
+							const float final_alpha =
+							        view_dot * brush_fade * brush_strength *
+							        grid_alpha * brush_alpha_pressure;
+							do_weight_paint_vertex(
+							        data->vp, data->ob, data->wpi,
+							        v_index, final_alpha, (float)weight_final);
+						}
+					}
+				}
+			}
+		}
+		BKE_pbvh_vertex_iter_end;
+	}
+}
+
+static void do_wpaint_brush_draw_task_cb_ex(
+        void *userdata, void *UNUSED(userdata_chunk), const int n, const int UNUSED(thread_id))
+{
+	SculptThreadedTaskData *data = userdata;
+	SculptSession *ss = data->ob->sculpt;
+	CCGDerivedMesh *ccgdm = BKE_pbvh_get_ccgdm(ss->pbvh);
+	Scene *scene = CTX_data_scene(data->C);
+
+	Brush *brush = data->brush;
+	StrokeCache *cache = ss->cache;
+	const float brush_strength = cache->bstrength;
+	const float paintweight = BKE_brush_weight_get(scene, brush);
+	float brush_size_pressure, brush_alpha_value, brush_alpha_pressure;
+	get_brush_alpha_data(scene, ss, brush, &brush_size_pressure, &brush_alpha_value, &brush_alpha_pressure);
+	const bool use_face_sel = (data->me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
+	const bool use_vert_sel = (data->me->editflag & ME_EDIT_PAINT_VERT_SEL) != 0;
+
+	SculptBrushTest test;
+	sculpt_brush_test_init(ss, &test);
+
+	/* For each vertex */
+	PBVHVertexIter vd;
+	BKE_pbvh_vertex_iter_begin(ss->pbvh, data->nodes[n], vd, PBVH_ITER_UNIQUE)
+	{
+		/* Test to see if the vertex coordinates are within the spherical brush region. */
+		if (sculpt_brush_test_sq(&test, vd.co)) {
+			/* Note: grids are 1:1 with corners (aka loops).
+			 * For multires, take the vert whose loop cooresponds to the current grid.
+			 * Otherwise, take the current vert. */
+			const int v_index = ccgdm ? data->me->mloop[vd.grid_indices[vd.g]].v : vd.vert_indices[vd.i];
+			const float grid_alpha = ccgdm ? 1.0f / vd.gridsize : 1.0f;
+
+			const char v_flag = data->me->mvert[v_index].flag;
+			/* If the vertex is selected */
+			if (!(use_face_sel || use_vert_sel) || v_flag & SELECT) {
+				const float view_dot = (vd.no) ? dot_vf3vs3(cache->sculpt_normal_symm, vd.no) : 1.0;
+				if (view_dot > 0.0f) {
+					const float brush_fade = BKE_brush_curve_strength(brush, sqrtf(test.dist), cache->radius);
+					float final_alpha = view_dot * brush_fade * brush_strength * grid_alpha * brush_alpha_pressure;
+
+					if (brush->flag & BRUSH_ACCUMULATE) {
+						float mask_accum = ss->mode.wpaint.previous_accum[v_index];
+						final_alpha = min_ff(final_alpha + mask_accum, brush_strength);
+						ss->mode.wpaint.previous_accum[v_index] = final_alpha;
+					}
+
+					/* Non-spray logic. */
+					if ((data->vp->flag & VP_SPRAY) == 0) {
+						/* Only paint if we have greater alpha. */
+						if (ss->mode.wpaint.alpha_weight[v_index] < final_alpha) {
+							ss->mode.wpaint.alpha_weight[v_index] = final_alpha;
+						}
+						else {
+							continue;
+						}
+
+						MDeformVert *dv = &data->me->dvert[v_index];
+						MDeformWeight *dw = defvert_find_index(dv, data->wpi->active.index);
+						float *weight_prev = &ss->mode.wpaint.previous_weight[v_index];
+						defweight_prev_init(dw, weight_prev);
+						if (dw) {
+							dw->weight = *weight_prev;
+						}
+					}
+
+					do_weight_paint_vertex(
+					        data->vp, data->ob, data->wpi,
+					        v_index, final_alpha, paintweight);
+				}
+			}
+		}
+	}
+	BKE_pbvh_vertex_iter_end;
+}
+
+static void do_wpaint_brush_calc_average_weight_cb_ex(
+        void *userdata, void *UNUSED(userdata_chunk), const int n, const int UNUSED(thread_id))
+{
+	SculptThreadedTaskData *data = userdata;
+	SculptSession *ss = data->ob->sculpt;
+	StrokeCache *cache = ss->cache;
+	CCGDerivedMesh *ccgdm = BKE_pbvh_get_ccgdm(ss->pbvh);
+
+	const bool use_face_sel = (data->me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
+	const bool use_vert_sel = (data->me->editflag & ME_EDIT_PAINT_VERT_SEL) != 0;
+
+	struct WPaintAverageAccum *accum = (struct WPaintAverageAccum *)data->custom_data + n;
+	accum->len = 0;
+	accum->value = 0.0;
+
+	SculptBrushTest test;
+	sculpt_brush_test_init(ss, &test);
+
+	/* For each vertex */
+	PBVHVertexIter vd;
+	BKE_pbvh_vertex_iter_begin(ss->pbvh, data->nodes[n], vd, PBVH_ITER_UNIQUE)
+	{
+		/* Test to see if the vertex coordinates are within the spherical brush region. */
+		if (sculpt_brush_test_sq(&test, vd.co)) {
+			const float view_dot = (vd.no) ? dot_vf3vs3(cache->sculpt_normal_symm, vd.no) : 1.0;
+			if (view_dot > 0.0 && BKE_brush_curve_strength(data->brush, sqrtf(test.dist), cache->radius) > 0.0) {
+				const int v_index = ccgdm ? data->me->mloop[vd.grid_indices[vd.g]].v : vd.vert_indices[vd.i];
+				// const float grid_alpha = ccgdm ? 1.0f / vd.gridsize : 1.0f;
+				const char v_flag = data->me->mvert[v_index].flag;
+
+				/* If the vertex is selected. */
+				if (!(use_face_sel || use_vert_sel) || v_flag & SELECT) {
+					const MDeformVert *dv = &data->me->dvert[v_index];
+					accum->len += 1;
+					accum->value += defvert_find_weight(dv, data->wpi->active.index);
+				}
+			}
+		}
+	}
+	BKE_pbvh_vertex_iter_end;
+}
+
+static void calculate_average_weight(SculptThreadedTaskData *data, PBVHNode **UNUSED(nodes), int totnode)
+{
+	Scene *scene = CTX_data_scene(data->C);
+	UnifiedPaintSettings *ups = &scene->toolsettings->unified_paint_settings;
+
+	struct WPaintAverageAccum *accum = MEM_mallocN(sizeof(*accum) * totnode, __func__);
+	data->custom_data = accum;
+
+	BLI_task_parallel_range_ex(
+	        0, totnode, data, NULL, 0, do_wpaint_brush_calc_average_weight_cb_ex,
+	        ((data->sd->flags & SCULPT_USE_OPENMP) && totnode > SCULPT_THREADED_LIMIT), false);
+
+	uint accum_len = 0;
+	double accum_weight = 0.0;
+	for (int i = 0; i < totnode; i++) {
+		accum_len += accum[i].len;
+		accum_weight += accum[i].value;
+	}
+	if (accum_len != 0) {
+		accum_weight /= accum_len;
+		if (ups->flag & UNIFIED_PAINT_WEIGHT)
+			ups->weight = (float)accum_weight;
+		else
+			data->brush->weight = (float)accum_weight;
 	}
 
-	return paintweight;
+	MEM_SAFE_FREE(data->custom_data);  /* 'accum' */
+}
+
+
+static void wpaint_paint_leaves(
+        bContext *C, Object *ob, Sculpt *sd, VPaint *vp, struct WPaintData *wpd, WeightPaintInfo *wpi,
+        Mesh *me, PBVHNode **nodes, int totnode)
+{
+	Brush *brush = ob->sculpt->cache->brush;
+
+	/* threaded loop over nodes */
+	SculptThreadedTaskData data = {
+		.sd = sd, .ob = ob, .brush = brush, .nodes = nodes, .vp = vp, .wpd = wpd, .wpi = wpi, .me = me, .C = C,
+	};
+
+	switch (brush->vertexpaint_tool) {
+		case PAINT_BLEND_AVERAGE:
+			calculate_average_weight(&data, nodes, totnode);
+			BLI_task_parallel_range_ex(
+			        0, totnode, &data, NULL, 0,
+			        do_wpaint_brush_draw_task_cb_ex, true, false);
+			break;
+		case PAINT_BLEND_SMEAR:
+			BLI_task_parallel_range_ex(
+			        0, totnode, &data, NULL, 0,
+			        do_wpaint_brush_smear_task_cb_ex, true, false);
+			break;
+		case PAINT_BLEND_BLUR:
+			BLI_task_parallel_range_ex(
+			        0, totnode, &data, NULL, 0,
+			        do_wpaint_brush_blur_task_cb_ex, true, false);
+			break;
+		default:
+			BLI_task_parallel_range_ex(
+			        0, totnode, &data, NULL, 0,
+			        do_wpaint_brush_draw_task_cb_ex, true, false);
+			break;
+	}
+}
+
+static void wpaint_do_paint(
+        bContext *C, Object *ob, VPaint *wp, Sculpt *sd, struct WPaintData *wpd, WeightPaintInfo *wpi,
+        Mesh *me, Brush *brush, const char symm, const int axis, const int i, const float angle)
+{
+	SculptSession *ss = ob->sculpt;
+	ss->cache->radial_symmetry_pass = i;
+	sculpt_cache_calc_brushdata_symm(ss->cache, symm, axis, angle);
+
+	SculptSearchSphereData data;
+	PBVHNode **nodes = NULL;
+	int totnode;
+
+
+	/* Build a list of all nodes that are potentially within the brush's area of influence */
+	data.ss = ss;
+	data.sd = sd;
+	data.radius_squared = ss->cache->radius_squared;
+	data.original = true;
+	BKE_pbvh_search_gather(ss->pbvh, sculpt_search_sphere_cb, &data, &nodes, &totnode);
+
+	sculpt_pbvh_calc_area_normal(brush, ob, nodes, totnode, true, ss->cache->sculpt_normal_symm);
+	wpaint_paint_leaves(C, ob, sd, wp, wpd, wpi, me, nodes, totnode);
+
+	if (nodes)
+		MEM_freeN(nodes);
+}
+
+static void wpaint_do_radial_symmetry(
+        bContext *C, Object *ob, VPaint *wp, Sculpt *sd, struct WPaintData *wpd, WeightPaintInfo *wpi,
+        Mesh *me, Brush *brush, const char symm, const int axis)
+{
+	for (int i = 1; i < wp->radial_symm[axis - 'X']; i++) {
+		const float angle = (2.0 * M_PI) * i / wp->radial_symm[axis - 'X'];
+		wpaint_do_paint(C, ob, wp, sd, wpd, wpi, me, brush, symm, axis, i, angle);
+	}
+}
+
+/* near duplicate of: sculpt.c's, 'do_symmetrical_brush_actions' and 'vpaint_do_symmetrical_brush_actions'. */
+static void wpaint_do_symmetrical_brush_actions(
+        bContext *C, Object *ob, VPaint *wp, Sculpt *sd, struct WPaintData *wpd, WeightPaintInfo *wpi)
+{
+	Brush *brush = BKE_paint_brush(&wp->paint);
+	Mesh *me = ob->data;
+	SculptSession *ss = ob->sculpt;
+	StrokeCache *cache = ss->cache;
+	const char symm = wp->paint.symmetry_flags & PAINT_SYMM_AXIS_ALL;
+	int i = 0;
+
+	/* initial stroke */
+	wpaint_do_paint(C, ob, wp, sd, wpd, wpi, me, brush, 0, 'X', 0, 0);
+	wpaint_do_radial_symmetry(C, ob, wp, sd, wpd, wpi, me, brush, 0, 'X');
+	wpaint_do_radial_symmetry(C, ob, wp, sd, wpd, wpi, me, brush, 0, 'Y');
+	wpaint_do_radial_symmetry(C, ob, wp, sd, wpd, wpi, me, brush, 0, 'Z');
+
+	cache->symmetry = symm;
+
+	/* symm is a bit combination of XYZ - 1 is mirror X; 2 is Y; 3 is XY; 4 is Z; 5 is XZ; 6 is YZ; 7 is XYZ */
+	for (i = 1; i <= symm; i++) {
+		if ((symm & i && (symm != 5 || i != 3) && (symm != 6 || (i != 3 && i != 5)))) {
+			cache->mirror_symmetry_pass = i;
+			cache->radial_symmetry_pass = 0;
+			sculpt_cache_calc_brushdata_symm(cache, i, 0, 0);
+
+			if (i & (1 << 0)) {
+				wpaint_do_paint(C, ob, wp, sd, wpd, wpi, me, brush, i, 'X', 0, 0);
+				wpaint_do_radial_symmetry(C, ob, wp, sd, wpd, wpi, me, brush, i, 'X');
+			}
+			if (i & (1 << 1)) {
+				wpaint_do_paint(C, ob, wp, sd, wpd, wpi, me, brush, i, 'Y', 0, 0);
+				wpaint_do_radial_symmetry(C, ob, wp, sd, wpd, wpi, me, brush, i, 'Y');
+			}
+			if (i & (1 << 2)) {
+				wpaint_do_paint(C, ob, wp, sd, wpd, wpi, me, brush, i, 'Z', 0, 0);
+				wpaint_do_radial_symmetry(C, ob, wp, sd, wpd, wpi, me, brush, i, 'Z');
+			}
+		}
+	}
+	copy_v3_v3(cache->true_last_location, cache->true_location);
+	cache->is_last_valid = true;
 }
 
 static void wpaint_stroke_update_step(bContext *C, struct PaintStroke *stroke, PointerRNA *itemptr)
@@ -2160,24 +1808,17 @@ static void wpaint_stroke_update_step(bContext *C, struct PaintStroke *stroke, P
 	Brush *brush = BKE_paint_brush(&wp->paint);
 	struct WPaintData *wpd = paint_stroke_mode_data(stroke);
 	ViewContext *vc;
-	Object *ob;
-	Mesh *me;
+	Object *ob = CTX_data_active_object(C);
+
+	SculptSession *ss = ob->sculpt;
+	Sculpt *sd = CTX_data_tool_settings(C)->sculpt;
+
+	vwpaint_update_cache_variants(C, wp, ob, itemptr);
+
 	float mat[4][4];
-	float paintweight;
-	int *indexar;
-	unsigned int index, totindex;
 	float mval[2];
-	const bool use_blur = (brush->vertexpaint_tool == PAINT_BLEND_BLUR);
-	bool use_vert_sel;
-	bool use_face_sel;
-	bool use_depth;
-
-	const float pressure = RNA_float_get(itemptr, "pressure");
-	const float brush_size_pressure =
-	        BKE_brush_size_get(scene, brush) * (BKE_brush_use_size_pressure(scene, brush) ? pressure : 1.0f);
+
 	const float brush_alpha_value = BKE_brush_alpha_get(scene, brush);
-	const float brush_alpha_pressure =
-	        brush_alpha_value * (BKE_brush_use_alpha_pressure(scene, brush) ? pressure : 1.0f);
 
 	/* intentionally don't initialize as NULL, make sure we initialize all members below */
 	WeightPaintInfo wpi;
@@ -2190,13 +1831,8 @@ static void wpaint_stroke_update_step(bContext *C, struct PaintStroke *stroke, P
 		return;
 	}
 
-	float (*blur_weight_func)(const MDeformVert *, const WeightPaintInfo *) =
-	        wpd->do_multipaint ? wpaint_blur_weight_multi : wpaint_blur_weight_single;
-
 	vc = &wpd->vc;
 	ob = vc->obact;
-	me = ob->data;
-	indexar = wpd->indexar;
 	
 	view3d_operator_needs_opengl(C);
 	ED_view3d_init_mats_rv3d(ob, vc->rv3d);
@@ -2204,7 +1840,6 @@ static void wpaint_stroke_update_step(bContext *C, struct PaintStroke *stroke, P
 	/* load projection matrix */
 	mul_m4_m4m4(mat, vc->rv3d->persmat, ob->obmat);
 
-	RNA_float_get_array(itemptr, "mouse", mval);
 
 	/* *** setup WeightPaintInfo - pass onto do_weight_paint_vertex *** */
 	wpi.defbase_tot =        wpd->defbase_tot;
@@ -2222,180 +1857,49 @@ static void wpaint_stroke_update_step(bContext *C, struct PaintStroke *stroke, P
 	wpi.brush_alpha_value =  brush_alpha_value;
 	/* *** done setting up WeightPaintInfo *** */
 
+	wpaint_do_symmetrical_brush_actions(C, ob, wp, sd, wpd, &wpi);
 
+	swap_m4m4(vc->rv3d->persmat, mat);
 
-	swap_m4m4(wpd->vc.rv3d->persmat, mat);
-
-	use_vert_sel = (me->editflag & ME_EDIT_PAINT_VERT_SEL) != 0;
-	use_face_sel = (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
-	use_depth = (vc->v3d->flag & V3D_ZBUF_SELECT) != 0;
-
-	/* which faces are involved */
-	if (use_depth) {
-		char editflag_prev = me->editflag;
-
-		/* Ugly hack, to avoid drawing vertex index when getting the face index buffer - campbell */
-		me->editflag &= ~ME_EDIT_PAINT_VERT_SEL;
-		if (use_vert_sel) {
-			/* Ugly x2, we need this so hidden faces don't draw */
-			me->editflag |= ME_EDIT_PAINT_FACE_SEL;
-		}
-		totindex = sample_backbuf_area(vc, indexar, me->totpoly, mval[0], mval[1], brush_size_pressure);
-		me->editflag = editflag_prev;
-
-		if (use_face_sel && me->totpoly) {
-			MPoly *mpoly = me->mpoly;
-			for (index = 0; index < totindex; index++) {
-				if (indexar[index] && indexar[index] <= me->totpoly) {
-					MPoly *mp = &mpoly[indexar[index] - 1];
-
-					if ((mp->flag & ME_FACE_SEL) == 0) {
-						indexar[index] = 0;
-					}
-				}
-			}
-		}
-	}
-	else {
-		indexar = NULL;
-	}
-
-	/* incase we have modifiers */
-	ED_vpaint_proj_handle_update(wpd->vp_handle, vc->ar, mval);
-
-	/* make sure each vertex gets treated only once */
-	/* and calculate filter weight */
-	paintweight = BKE_brush_weight_get(scene, brush);
+	/* calculate pivot for rotation around seletion if needed */
+	/* also needed for "View Selected" on last stroke */
+	paint_last_stroke_update(scene, vc->ar, mval);
 
-	if (use_depth) {
-		for (index = 0; index < totindex; index++) {
-			if (indexar[index] && indexar[index] <= me->totpoly) {
-				MPoly *mpoly = me->mpoly + (indexar[index] - 1);
-				MLoop *ml = me->mloop + mpoly->loopstart;
-				int i;
+	DAG_id_tag_update(ob->data, 0);
+	WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
+	swap_m4m4(wpd->vc.rv3d->persmat, mat);
 
-				if (use_vert_sel) {
-					for (i = 0; i < mpoly->totloop; i++, ml++) {
-						me->dvert[ml->v].flag = (me->mvert[ml->v].flag & SELECT);
-					}
-				}
-				else {
-					for (i = 0; i < mpoly->totloop; i++, ml++) {
-						me->dvert[ml->v].flag = 1;
-					}
-				}
-			}
+	rcti r;
+	if (sculpt_get_redraw_rect(vc->ar, CTX_wm_region_view3d(C), ob, &r)) {
+		if (ss->cache) {
+			ss->cache->current_r = r;
 		}
-	}
-	else {
-		const unsigned int totvert = me->totvert;
-		unsigned int       i;
 
-		/* in the case of face selection we need to flush */
-		if (use_vert_sel || use_face_sel) {
-			for (i = 0; i < totvert; i++) {
-				me->dvert[i].flag = me->mvert[i].flag & SELECT;
-			}
-		}
-		else {
-			for (i = 0; i < totvert; i++) {
-				me->dvert[i].flag = SELECT;
-			}
+		/* previous is not set in the current cache else
+		 * the partial rect will always grow */
+		if (ss->cache) {
+			if (!BLI_rcti_is_empty(&ss->cache->previous_r))
+				BLI_rcti_union(&r, &ss->cache->previous_r);
 		}
-	}
 
-	/* accumulate means we refer to the previous,
-	 * which is either the last update, or when we started painting */
-	BLI_Stack *accumulate_stack = wpd->accumulate_stack;
-	const bool use_accumulate = (accumulate_stack != NULL);
-	BLI_assert(accumulate_stack == NULL || BLI_stack_is_empty(accumulate_stack));
-
-	const MDeformVert *dvert_prev = use_accumulate ? me->dvert : wp->wpaint_prev;
-
-#define WP_PAINT(v_idx_var)  \
-	{ \
-		unsigned int vidx = v_idx_var; \
-		if (me->dvert[vidx].flag) { \
-			const float alpha = calc_vp_alpha_col_dl( \
-			        wp, vc, wpd->wpimat, &wpd->vertexcosnos[vidx], \
-			        mval, brush_size_pressure, brush_alpha_pressure, NULL); \
-			if (alpha) { \
-				if (use_blur) { \
-					paintweight = wpaint_blur_weight_calc_from_connected( \
-					        dvert_prev, &wpi, wpd, vidx, blur_weight_func); \
-				} \
-				if (use_accumulate) { \
-					struct WPaintDefer *dweight = BLI_stack_push_r(accumulate_stack); \
-					dweight->index = vidx; \
-					dweight->alpha = alpha; \
-					dweight->weight = paintweight; \
-				} \
-				else { \
-					do_weight_paint_vertex(wp, ob, &wpi, vidx, alpha, paintweight); \
-				} \
-			} \
-			me->dvert[vidx].flag = 0; \
-		} \
-	} (void)0
-
-	if (use_depth) {
-		for (index = 0; index < totindex; index++) {
-
-			if (indexar[index] && indexar[index] <= me->totpoly) {
-				MPoly *mpoly = me->mpoly + (indexar[index] - 1);
-				MLoop *ml = me->mloop + mpoly->loopstart;
-				int i;
-
-				for (i = 0; i < mpoly->totloop; i++, ml++) {
-					WP_PAINT(ml->v);
-				}
-			}
-		}
-	}
-	else {
-		const unsigned int totvert = me->totvert;
-		unsigned int       i;
-
-		for (i = 0; i < totvert; i++) {
-			WP_PAINT(i);
-		}
-	}
-#undef WP_PAINT
+		r.xmin += vc->ar->winrct.xmin - 2;
+		r.xmax += vc->ar->winrct.xmin + 2;
+		r.ymin += vc->ar->winrct.ymin - 2;
+		r.ymax += vc->ar->winrct.ymin + 2;
 
-	if (use_accumulate) {
-		unsigned int defer_count = BLI_stack_count(accumulate_stack);
-		while (defer_count--) {
-			struct WPaintDefer *dweight = BLI_stack_peek(accumulate_stack);
-			do_weight_paint_vertex(wp, ob, &wpi, dweight->index, dweight->alpha, dweight->weight);
-			BLI_stack_discard(accumulate_stack);
-		}
+		ss->partial_redraw = 1;
 	}
-
-
-	/* *** free wpi members */
-	/* *** done freeing wpi members */
-
-
-	swap_m4m4(vc->rv3d->persmat, mat);
-
-	/* calculate pivot for rotation around seletion if needed */
-	/* also needed for "View Selected" on last stroke */
-	paint_last_stroke_update(scene, vc->ar, mval);
-
-	DAG_id_tag_update(ob->data, 0);
-	ED_region_tag_redraw(vc->ar);
+	ED_region_tag_redraw_partial(vc->ar, &r);
 }
 
 static void wpaint_stroke_done(const bContext *C, struct PaintStroke *stroke)
 {
-	ToolSettings *ts = CTX_data_tool_settings(C);
 	Object *ob = CTX_data_active_object(C);
 	struct WPaintData *wpd = paint_stroke_mode_data(stroke);
 	
 	if (wpd) {
 		ED_vpaint_proj_handle_free(wpd->vp_handle);
-		MEM_freeN(wpd->indexar);
-		
+
 		if (wpd->defbase_sel)
 			MEM_freeN((void *)wpd->defbase_sel);
 		if (wpd->vgroup_validmap)
@@ -2407,23 +1911,9 @@ static void wpaint_stroke_done(const bContext *C, struct PaintStroke *stroke)
 		if (wpd->mirror.lock)
 			MEM_freeN((void *)wpd->mirror.lock);
 
-		if (wpd->blur_data.vmap) {
-			MEM_freeN(wpd->blur_data.vmap);
-		}
-		if (wpd->blur_data.vmap_mem) {
-			MEM_freeN(wpd->blur_data.vmap_mem);
-		}
-
-		if (wpd->accumulate_stack) {
-			BLI_stack_free(wpd->accumulate_stack);
-		}
-
 		MEM_freeN(wpd);
 	}
 	
-	/* frees prev buffer */
-	copy_wpaint_prev(ts->wpaint, NULL, 0);
-	
 	/* and particles too */
 	if (ob->particlesystem.first) {
 		ParticleSystem *psys;
@@ -2442,6 +1932,9 @@ static void wpaint_stroke_done(const bContext *C, struct PaintStroke *stroke)
 	DAG_id_tag_update(ob->data, 0);
 
 	WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
+
+	sculpt_cache_free(ob->sculpt->cache);
+	ob->sculpt->cache = NULL;
 }
 
 
@@ -2449,9 +1942,10 @@ static int wpaint_invoke(bContext *C, wmOperator *op, const wmEvent *event)
 {
 	int retval;
 
-	op->customdata = paint_stroke_new(C, op, NULL, wpaint_stroke_test_start,
-	                                  wpaint_stroke_update_step, NULL,
-	                                  wpaint_stroke_done, event->type);
+	op->customdata = paint_stroke_new(
+	        C, op, sculpt_stroke_get_location, wpaint_stroke_test_start,
+	        wpaint_stroke_update_step, NULL,
+	        wpaint_stroke_done, event->type);
 	
 	if ((retval = op->type->modal(C, op, event)) == OPERATOR_FINISHED) {
 		paint_stroke_data_free(op);
@@ -2468,9 +1962,10 @@ static int wpaint_invoke(bContext *C, wmOperator *op, const wmEvent *event)
 
 static int wpaint_exec(bContext *C, wmOperator *op)
 {
-	op->customdata = paint_stroke_new(C, op, NULL, wpaint_stroke_test_start,
-	                                  wpaint_stroke_update_step, NULL,
-	                                  wpaint_stroke_done, 0);
+	op->customdata = paint_stroke_new(
+	        C, op, sculpt_stroke_get_location, wpaint_stroke_test_start,
+	        wpaint_stroke_update_step, NULL,
+	        wpaint_stroke_done, 0);
 
 	/* frees op->customdata */
 	paint_stroke_exec(C, op);
@@ -2480,6 +1975,12 @@ static int wpaint_exec(bContext *C, wmOperator *op)
 
 static void wpaint_cancel(bContext *C, wmOperator *op)
 {
+	Object *ob = CTX_data_active_object(C);
+	if (ob->sculpt->cache) {
+		sculpt_cache_free(ob->sculpt->cache);
+		ob->sculpt->cache = NULL;
+	}
+
 	paint_stroke_cancel(C, op);
 }
 
@@ -2504,42 +2005,6 @@ void PAINT_OT_weight_paint(wmOperatorType *ot)
 	paint_stroke_operator_properties(ot);
 }
 
-static int weight_paint_set_exec(bContext *C, wmOperator *op)
-{
-	struct Scene *scene = CTX_data_scene(C);
-	Object *obact = CTX_data_active_object(C);
-	ToolSettings *ts = CTX_data_tool_settings(C);
-	Brush *brush = BKE_paint_brush(&ts->wpaint->paint);
-	float vgroup_weight = BKE_brush_weight_get(scene, brush);
-
-	if (wpaint_ensure_data(C, op, WPAINT_ENSURE_MIRROR, NULL) == false) {
-		return OPERATOR_CANCELLED;
-	}
-
-	if (ED_wpaint_fill(scene->toolsettings->wpaint, obact, vgroup_weight)) {
-		ED_region_tag_redraw(CTX_wm_region(C)); /* XXX - should redraw all 3D views */
-		return OPERATOR_FINISHED;
-	}
-	else {
-		return OPERATOR_CANCELLED;
-	}
-}
-
-void PAINT_OT_weight_set(wmOperatorType *ot)
-{
-	/* identifiers */
-	ot->name = "Set Weight";
-	ot->idname = "PAINT_OT_weight_set";
-	ot->description = "Fill the active vertex group with the current paint weight";
-
-	/* api callbacks */
-	ot->exec = weight_paint_set_exec;
-	ot->poll = mask_paint_poll;
-
-	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-}
-
 /* ************ set / clear vertex paint mode ********** */
 
 /**
@@ -2569,15 +2034,24 @@ static int vpaint_mode_toggle_exec(bContext *C, wmOperator *op)
 		if (me->editflag & ME_EDIT_PAINT_FACE_SEL) {
 			BKE_mesh_flush_select_from_polys(me);
 		}
+		else if (me->editflag & ME_EDIT_PAINT_VERT_SEL) {
+			BKE_mesh_flush_select_from_verts(me);
+		}
+
+		/* If the cache is not released by a cancel or a done, free it now. */
+		if (ob->sculpt->cache) {
+			sculpt_cache_free(ob->sculpt->cache);
+			ob->sculpt->cache = NULL;
+		}
+
+		BKE_sculptsession_free(ob);
 
 		paint_cursor_delete_textures();
 	}
 	else {
 		ob->mode |= mode_flag;
 
-		if (me->mloopcol == NULL) {
-			make_vertexcol(ob);
-		}
+		ED_mesh_color_ensure(me, NULL);
 
 		if (vp == NULL)
 			vp = scene->toolsettings->vpaint = new_vpaint(0);
@@ -2585,6 +2059,16 @@ static int vpaint_mode_toggle_exec(bContext *C, wmOperator *op)
 		paint_cursor_start(C, vertex_paint_poll);
 
 		BKE_paint_init(scene, ePaintVertex, PAINT_CURSOR_VERTEX_PAINT);
+
+		/* Create vertex/weight paint mode session data */
+		if (ob->sculpt) {
+			if (ob->sculpt->cache) {
+				sculpt_cache_free(ob->sculpt->cache);
+				ob->sculpt->cache = NULL;
+			}
+			BKE_sculptsession_free(ob);
+		}
+		vertex_paint_init_session(scene, ob);
 	}
 	
 	/* update modifier stack for mapping requirements */
@@ -2638,13 +2122,12 @@ typedef struct PolyFaceMap {
 	int facenr;
 } PolyFaceMap;
 
-typedef struct VPaintData {
+struct VPaintData {
 	ViewContext vc;
-	unsigned int paintcol;
-	int *indexar;
+	uint paintcol;
 
 	struct VertProjHandle *vp_handle;
-	DMCoNo *vertexcosnos;
+	struct DMCoNo *vertexcosnos;
 
 	float vpimat[3][3];
 
@@ -2657,9 +2140,9 @@ typedef struct VPaintData {
 	bool *mlooptag;
 
 	bool is_texbrush;
-} VPaintData;
+};
 
-static bool vpaint_stroke_test_start(bContext *C, struct wmOperator *op, const float UNUSED(mouse[2]))
+static bool vpaint_stroke_test_start(bContext *C, struct wmOperator *op, const float mouse[2])
 {
 	Scene *scene = CTX_data_scene(C);
 	ToolSettings *ts = scene->toolsettings;
@@ -2670,25 +2153,22 @@ static bool vpaint_stroke_test_start(bContext *C, struct wmOperator *op, const f
 	Object *ob = CTX_data_active_object(C);
 	Mesh *me;
 	float mat[4][4], imat[4][4];
+	SculptSession *ss = ob->sculpt;
 
 	/* context checks could be a poll() */
 	me = BKE_mesh_from_object(ob);
 	if (me == NULL || me->totpoly == 0)
 		return false;
 	
-	if (me->mloopcol == NULL)
-		make_vertexcol(ob);
+	ED_mesh_color_ensure(me, NULL);
 	if (me->mloopcol == NULL)
 		return false;
 
 	/* make mode data storage */
-	vpd = MEM_callocN(sizeof(struct VPaintData), "VPaintData");
+	vpd = MEM_callocN(sizeof(*vpd), "VPaintData");
 	paint_stroke_set_mode_data(stroke, vpd);
 	view3d_set_viewcontext(C, &vpd->vc);
 	
-	vpd->vp_handle = ED_vpaint_proj_handle_create(vpd->vc.scene, ob, &vpd->vertexcosnos);
-
-	vpd->indexar = get_indexarray(me);
 	vpd->paintcol = vpaint_get_current_col(scene, vp);
 
 	vpd->is_texbrush = !(brush->vertexpaint_tool == PAINT_BLEND_BLUR) &&
@@ -2710,84 +2190,551 @@ static bool vpaint_stroke_test_start(bContext *C, struct wmOperator *op, const f
 		vpd->mlooptag = MEM_mallocN(sizeof(bool) * me->totloop, "VPaintData mlooptag");
 	}
 
-	/* for filtering */
-	copy_vpaint_prev(vp, (unsigned int *)me->mloopcol, me->totloop);
-	
+	/* Create projection handle */
+	if (vpd->is_texbrush) {
+		ob->sculpt->building_vp_handle = true;
+		vpd->vp_handle = ED_vpaint_proj_handle_create(scene, ob, &vpd->vertexcosnos);
+		ob->sculpt->building_vp_handle = false;
+	}
+
 	/* some old cruft to sort out later */
 	mul_m4_m4m4(mat, vpd->vc.rv3d->viewmat, ob->obmat);
 	invert_m4_m4(imat, mat);
 	copy_m3_m4(vpd->vpimat, imat);
 
+	/* If not previously created, create vertex/weight paint mode session data */
+	vertex_paint_init_session(scene, ob);
+	vwpaint_update_cache_invariants(C, vp, ss, op, mouse);
+	vertex_paint_init_session_data(ts, ob);
+
+	if (ob->sculpt->mode.vpaint.previous_color != NULL) {
+		memset(ob->sculpt->mode.vpaint.previous_color, 0, sizeof(uint) * me->totloop);
+	}
+
 	return 1;
 }
 
-static void vpaint_paint_poly(VPaint *vp, VPaintData *vpd, Mesh *me,
-                              const unsigned int index, const float mval[2],
-                              const float brush_size_pressure, const float brush_alpha_pressure)
+static void do_vpaint_brush_calc_average_color_cb_ex(
+        void *userdata, void *UNUSED(userdata_chunk), const int n, const int UNUSED(thread_id))
 {
-	ViewContext *vc = &vpd->vc;
-	Brush *brush = BKE_paint_brush(&vp->paint);
-	MPoly *mpoly = &me->mpoly[index];
-	MLoop *ml;
-	unsigned int *lcol = ((unsigned int *)me->mloopcol) + mpoly->loopstart;
-	unsigned int *lcolorig = ((unsigned int *)vp->vpaint_prev) + mpoly->loopstart;
-	bool *mlooptag = (vpd->mlooptag) ? vpd->mlooptag + mpoly->loopstart : NULL;
-	float alpha;
-	int i, j;
-	int totloop = mpoly->totloop;
+	SculptThreadedTaskData *data = userdata;
+	SculptSession *ss = data->ob->sculpt;
+	CCGDerivedMesh *ccgdm = BKE_pbvh_get_ccgdm(ss->pbvh);
+	const struct SculptVertexPaintGeomMap *gmap = &ss->mode.vpaint.gmap;
 
-	int brush_alpha_pressure_i = (int)(brush_alpha_pressure * 255.0f);
+	StrokeCache *cache = ss->cache;
+	uint *lcol = data->lcol;
+	char *col;
+	const bool use_vert_sel = (data->me->editflag & (ME_EDIT_PAINT_FACE_SEL | ME_EDIT_PAINT_VERT_SEL)) != 0;
 
-	if (brush->vertexpaint_tool == PAINT_BLEND_BLUR) {
-		unsigned int blend[4] = {0};
-		unsigned int tcol;
-		char *col;
-
-		for (j = 0; j < totloop; j++) {
-			col = (char *)(lcol + j);
-			blend[0] += col[0];
-			blend[1] += col[1];
-			blend[2] += col[2];
-			blend[3] += col[3];
-		}
-
-		blend[0] = divide_round_i(blend[0], totloop);
-		blend[1] = divide_round_i(blend[1], totloop);
-		blend[2] = divide_round_i(blend[2], totloop);
-		blend[3] = divide_round_i(blend[3], totloop);
-		col = (char *)&tcol;
-		col[0] = blend[0];
-		col[1] = blend[1];
-		col[2] = blend[2];
-		col[3] = blend[3];
-
-		vpd->paintcol = *((unsigned int *)col);
-	}
-
-	ml = me->mloop + mpoly->loopstart;
-	for (i = 0; i < totloop; i++, ml++) {
-		float rgba[4];
-		unsigned int paintcol;
-		alpha = calc_vp_alpha_col_dl(vp, vc, vpd->vpimat,
-		                         &vpd->vertexcosnos[ml->v], mval,
-		                         brush_size_pressure, brush_alpha_pressure, rgba);
-
-		if (vpd->is_texbrush) {
-			float rgba_br[3];
-			rgb_uchar_to_float(rgba_br, (const unsigned char *)&vpd->paintcol);
-			mul_v3_v3(rgba_br, rgba);
-			rgb_float_to_uchar((unsigned char *)&paintcol, rgba_br);
+	struct VPaintAverageAccum *accum = (struct VPaintAverageAccum *)data->custom_data + n;
+	accum->len = 0;
+	memset(accum->value, 0, sizeof(accum->value));
+
+	SculptBrushTest test;
+	sculpt_brush_test_init(ss, &test);
+
+	/* For each vertex */
+	PBVHVertexIter vd;
+	BKE_pbvh_vertex_iter_begin(ss->pbvh, data->nodes[n], vd, PBVH_ITER_UNIQUE)
+	{
+		/* Test to see if the vertex coordinates are within the spherical brush region. */
+		if (sculpt_brush_test_fast(&test, vd.co)) {
+			const int v_index = ccgdm ? data->me->mloop[vd.grid_indices[vd.g]].v : vd.vert_indices[vd.i];
+			if (BKE_brush_curve_strength(data->brush, test.dist, cache->radius) > 0.0) {
+				/* If the vertex is selected for painting. */
+				const MVert *mv = &data->me->mvert[v_index];
+				if (!use_vert_sel || mv->flag & SELECT) {
+					accum->len += gmap->vert_to_loop[v_index].count;
+					/* if a vertex is within the brush region, then add it's color to the blend. */
+					for (int j = 0; j < gmap->vert_to_loop[v_index].count; j++) {
+						const int l_index = gmap->vert_to_loop[v_index].indices[j];
+						col = (char *)(&lcol[l_index]);
+						/* Color is squared to compensate the sqrt color encoding. */
+						accum->value[0] += col[0] * col[0];
+						accum->value[1] += col[1] * col[1];
+						accum->value[2] += col[2] * col[2];
+					}
+				}
+			}
 		}
-		else
-			paintcol = vpd->paintcol;
+	}
+	BKE_pbvh_vertex_iter_end;
+}
+
+static void handle_texture_brush(
+        SculptThreadedTaskData *data, PBVHVertexIter vd, float size_pressure, float alpha_pressure,
+        float *r_alpha, uint *r_color)
+{
+	SculptSession *ss = data->ob->sculpt;
+	CCGDerivedMesh *ccgdm = BKE_pbvh_get_ccgdm(ss->pbvh);
+	const int v_index = ccgdm ? data->me->mloop[vd.grid_indices[vd.g]].v : vd.vert_indices[vd.i];
+
+	float rgba[4];
+	float rgba_br[3];
+
+	*r_alpha = calc_vp_alpha_col_dl(
+	        data->vp, &data->vpd->vc, data->vpd->vpimat,
+	        &data->vpd->vertexcosnos[v_index], ss->cache->mouse, size_pressure, alpha_pressure, rgba);
+	rgb_uchar_to_float(rgba_br, (const uchar *)&data->vpd->paintcol);
+	mul_v3_v3(rgba_br, rgba);
+	rgb_float_to_uchar((uchar *)r_color, rgba_br);
+}
+
+static void do_vpaint_brush_draw_task_cb_ex(
+        void *userdata, void *UNUSED(userdata_chunk), const int n, const int UNUSED(thread_id))
+{
+	SculptThreadedTaskData *data = userdata;
+	SculptSession *ss = data->ob->sculpt;
+	CCGDerivedMesh *ccgdm = BKE_pbvh_get_ccgdm(ss->pbvh);
+	const struct SculptVertexPaintGeomMap *gmap = &ss->mode.vpaint.gmap;
+
+	Brush *brush = data->brush;
+	StrokeCache *cache = ss->cache;
+	const float brush_strength = cache->bstrength;
+	uint *lcol = data->lcol;
+	Scene *scene = CTX_data_scene(data->C);
+	float brush_size_pressure, brush_alpha_value, brush_alpha_pressure;
+	get_brush_alpha_data(scene, ss, brush, &brush_size_pressure, &brush_alpha_value, &brush_alpha_pressure);
+	const bool use_vert_sel = (data->me->editflag & (ME_EDIT_PAINT_FACE_SEL | ME_EDIT_PAINT_VERT_SEL)) != 0;
+	const bool use_face_sel = (data->me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
 
-		if (alpha > 0.0f) {
-			const int alpha_i = (int)(alpha * 255.0f);
-			lcol[i] = vpaint_blend(vp, lcol[i], lcolorig[i], paintcol, alpha_i, brush_alpha_pressure_i);
+	SculptBrushTest test;
+	sculpt_brush_test_init(ss, &test);
 
-			if (mlooptag) mlooptag[i] = 1;
+	/* For each vertex */
+	PBVHVertexIter vd;
+	BKE_pbvh_vertex_iter_begin(ss->pbvh, data->nodes[n], vd, PBVH_ITER_UNIQUE)
+	{
+		/* Test to see if the vertex coordinates are within the spherical brush region. */
+		if (sculpt_brush_test(&test, vd.co)) {
+			/* Note: Grids are 1:1 with corners (aka loops).
+			 * For grid based pbvh, take the vert whose loop cooresponds to the current grid.
+			 * Otherwise, take the current vert. */
+			const int v_index = ccgdm ? data->me->mloop[vd.grid_indices[vd.g]].v : vd.vert_indices[vd.i];
+			const float grid_alpha = ccgdm ? 1.0f / vd.gridsize : 1.0f;
+			const MVert *mv = &data->me->mvert[v_index];
+
+			/* If the vertex is selected for painting. */
+			if (!use_vert_sel || mv->flag & SELECT) {
+				/* Calc the dot prod. between ray norm on surf and current vert
+				 * (ie splash prevention factor), and only paint front facing verts. */
+				const float view_dot = (vd.no) ? dot_vf3vs3(cache->sculpt_normal_symm, vd.no) : 1.0;
+				if (view_dot > 0.0f) {
+					const float brush_fade = BKE_brush_curve_strength(brush, test.dist, cache->radius);
+					uint color_final = data->vpd->paintcol;
+
+					/* If we're painting with a texture, sample the texture color and alpha. */
+					float tex_alpha = 1.0;
+					if (data->vpd->is_texbrush) {
+						handle_texture_brush(
+						        data, vd, brush_size_pressure, brush_alpha_pressure,
+						        &tex_alpha, &color_final);
+					}
+					/* For each poly owning this vert, paint each loop belonging to this vert. */
+					for (int j = 0; j < gmap->vert_to_poly[v_index].count; j++) {
+						const int p_index = gmap->vert_to_poly[v_index].indices[j];
+						const int l_index = gmap->vert_to_loop[v_index].indices[j];
+						BLI_assert(data->me->mloop[l_index].v == v_index);
+						const MPoly *mp = &data->me->mpoly[p_index];
+						if (!use_face_sel || mp->flag & ME_FACE_SEL) {
+							uint color_orig = 0;  /* unused when array is NULL */
+							if (ss->mode.vpaint.previous_color != NULL) {
+								/* Get the previous loop color */
+								if (ss->mode.vpaint.previous_color[l_index] == 0) {
+									ss->mode.vpaint.previous_color[l_index] = lcol[l_index];
+								}
+								color_orig = ss->mode.vpaint.previous_color[l_index];
+							}
+							float final_alpha =
+							        255 * brush_fade * brush_strength * view_dot *
+							        tex_alpha * brush_alpha_pressure * grid_alpha;
+
+							if (brush->flag & BRUSH_ACCUMULATE) {
+								float mask_accum = ss->mode.vpaint.previous_accum[l_index];
+								final_alpha = min_ff(final_alpha + mask_accum, 255.0f * brush_strength);
+								ss->mode.vpaint.previous_accum[l_index] = final_alpha;
+							}
+
+							/* Mix the new color with the original based on final_alpha. */
+							lcol[l_index] = vpaint_blend(
+							        data->vp, lcol[l_index], color_orig, color_final,
+							        final_alpha, 255 * brush_strength);
+						}
+					}
+				}
+			}
+		}
+	}
+	BKE_pbvh_vertex_iter_end;
+}
+
+static void do_vpaint_brush_blur_task_cb_ex(
+        void *userdata, void *UNUSED(userdata_chunk), const int n, const int UNUSED(thread_id))
+{
+	SculptThreadedTaskData *data = userdata;
+	SculptSession *ss = data->ob->sculpt;
+	CCGDerivedMesh *ccgdm = BKE_pbvh_get_ccgdm(ss->pbvh);
+
+	Scene *scene = CTX_data_scene(data->C);
+	const struct SculptVertexPaintGeomMap *gmap = &ss->mode.vpaint.gmap;
+	Brush *brush = data->brush;
+	StrokeCache *cache = ss->cache;
+	const float brush_strength = cache->bstrength;
+	uint *lcol = data->lcol;
+	float brush_size_pressure, brush_alpha_value, brush_alpha_pressure;
+	get_brush_alpha_data(scene, ss, brush, &brush_size_pressure, &brush_alpha_value, &brush_alpha_pressure);
+	const bool use_vert_sel = (data->me->editflag & (ME_EDIT_PAINT_FACE_SEL | ME_EDIT_PAINT_VERT_SEL)) != 0;
+	const bool use_face_sel = (data->me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
+
+	SculptBrushTest test;
+	sculpt_brush_test_init(ss, &test);
+
+	/* For each vertex */
+	PBVHVertexIter vd;
+	BKE_pbvh_vertex_iter_begin(ss->pbvh, data->nodes[n], vd, PBVH_ITER_UNIQUE)
+	{
+		/* Test to see if the vertex coordinates are within the spherical brush region. */
+		if (sculpt_brush_test(&test, vd.co)) {
+			/* For grid based pbvh, take the vert whose loop cooresponds to the current grid. 
+			 * Otherwise, take the current vert. */
+			const int v_index = ccgdm ? data->me->mloop[vd.grid_indices[vd.g]].v : vd.vert_indices[vd.i];
+			const float grid_alpha = ccgdm ? 1.0f / vd.gridsize : 1.0f;
+			const MVert *mv = &data->me->mvert[v_index];
+
+			const float view_dot = (vd.no) ? dot_vf3vs3(cache->sculpt_normal_symm, vd.no) : 1.0;
+			if (view_dot > 0.0f) {
+				const float brush_fade = BKE_brush_curve_strength(brush, test.dist, cache->radius);
+
+				/* If the vertex is selected for painting. */
+				if (!use_vert_sel || mv->flag & SELECT) {
+					/* Get the average poly color */
+					uint color_final = 0;
+					int total_hit_loops = 0;
+					uint blend[4] = {0};
+					for (int j = 0; j < gmap->vert_to_poly[v_index].count; j++) {
+						int p_index = gmap->vert_to_poly[v_index].indices[j];
+						const MPoly *mp = &data->me->mpoly[p_index];
+						if (!use_face_sel || mp->flag & ME_FACE_SEL) {
+							total_hit_loops += mp->totloop;
+							for (int k = 0; k < mp->totloop; k++) {
+								const uint l_index = mp->loopstart + k;
+								const char *col = (const char *)(&lcol[l_index]);
+								/* Color is squared to compensate the sqrt color encoding. */
+								blend[0] += (uint)col[0] * (uint)col[0];
+								blend[1] += (uint)col[1] * (uint)col[1];
+								blend[2] += (uint)col[2] * (uint)col[2];
+								blend[3] += (uint)col[3] * (uint)col[3];
+							}
+						}
+					}
+					if (total_hit_loops != 0) {
+						/* Use rgb^2 color averaging. */
+						char *col = (char *)(&color_final);
+						col[0] = round_fl_to_uchar(sqrtf(divide_round_i(blend[0], total_hit_loops)));
+						col[1] = round_fl_to_uchar(sqrtf(divide_round_i(blend[1], total_hit_loops)));
+						col[2] = round_fl_to_uchar(sqrtf(divide_round_i(blend[2], total_hit_loops)));
+						col[3] = round_fl_to_uchar(sqrtf(divide_round_i(blend[3], total_hit_loops)));
+
+						/* For each poly owning this vert, paint each loop belonging to this vert. */
+						for (int j = 0; j < gmap->vert_to_poly[v_index].count; j++) {
+							const int p_index = gmap->vert_to_poly[v_index].indices[j];
+							const int l_index = gmap->vert_to_loop[v_index].indices[j];
+							BLI_assert(data->me->mloop[l_index].v == v_index);
+							const MPoly *mp = &data->me->mpoly[p_index];
+							if (!use_face_sel || mp->flag & ME_FACE_SEL) {
+								uint color_orig = 0;  /* unused when array is NULL */
+								if (ss->mode.vpaint.previous_color != NULL) {
+									/* Get the previous loop color */
+									if (ss->mode.vpaint.previous_color[l_index] == 0) {
+										ss->mode.vpaint.previous_color[l_index] = lcol[l_index];
+									}
+									color_orig = ss->mode.vpaint.previous_color[l_index];
+								}
+								const float final_alpha =
+								        255 * brush_fade * brush_strength * view_dot *
+								        brush_alpha_pressure * grid_alpha;
+								/* Mix the new color with the original
+								 * based on the brush strength and the curve. */
+								lcol[l_index] = vpaint_blend(
+								        data->vp, lcol[l_index], color_orig, *((uint *)col),
+								        final_alpha, 255 * brush_strength);
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+	BKE_pbvh_vertex_iter_end;
+}
+
+static void do_vpaint_brush_smear_task_cb_ex(
+        void *userdata, void *UNUSED(userdata_chunk), const int n, const int UNUSED(thread_id))
+{
+	SculptThreadedTaskData *data = userdata;
+	SculptSession *ss = data->ob->sculpt;
+	CCGDerivedMesh *ccgdm = BKE_pbvh_get_ccgdm(ss->pbvh);
+
+	Scene *scene = CTX_data_scene(data->C);
+	const struct SculptVertexPaintGeomMap *gmap = &ss->mode.vpaint.gmap;
+	Brush *brush = data->brush;
+	StrokeCache *cache = ss->cache;
+	const float brush_strength = cache->bstrength;
+	uint *lcol = data->lcol;
+	float brush_size_pressure, brush_alpha_value, brush_alpha_pressure;
+	get_brush_alpha_data(scene, ss, brush, &brush_size_pressure, &brush_alpha_value, &brush_alpha_pressure);
+	float brush_dir[3];
+	const bool use_vert_sel = (data->me->editflag & (ME_EDIT_PAINT_FACE_SEL | ME_EDIT_PAINT_VERT_SEL)) != 0;
+	const bool use_face_sel = (data->me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
+
+	sub_v3_v3v3(brush_dir, cache->location, cache->last_location);
+	project_plane_v3_v3v3(brush_dir, brush_dir, cache->view_normal);
+
+	if (normalize_v3(brush_dir) != 0.0f) {
+
+		SculptBrushTest test;
+		sculpt_brush_test_init(ss, &test);
+
+		/* For each vertex */
+		PBVHVertexIter vd;
+		BKE_pbvh_vertex_iter_begin(ss->pbvh, data->nodes[n], vd, PBVH_ITER_UNIQUE)
+		{
+			/* Test to see if the vertex coordinates are within the spherical brush region. */
+			if (sculpt_brush_test(&test, vd.co)) {
+				/* For grid based pbvh, take the vert whose loop cooresponds to the current grid.
+				 * Otherwise, take the current vert. */
+				const int v_index = ccgdm ? data->me->mloop[vd.grid_indices[vd.g]].v : vd.vert_indices[vd.i];
+				const float grid_alpha = ccgdm ? 1.0f / vd.gridsize : 1.0f;
+				const MVert *mv_curr = &data->me->mvert[v_index];
+
+				/* if the vertex is selected for painting. */
+				if (!use_vert_sel || mv_curr->flag & SELECT) {
+					/* Calc the dot prod. between ray norm on surf and current vert
+					 * (ie splash prevention factor), and only paint front facing verts. */
+					const float view_dot = (vd.no) ? dot_vf3vs3(cache->sculpt_normal_symm, vd.no) : 1.0;
+					if (view_dot > 0.0f) {
+						const float brush_fade = BKE_brush_curve_strength(brush, test.dist, cache->radius);
+
+						bool do_color = false;
+						/* Minimum dot product between brush direction and current
+						 * to neighbor direction is 0.0, meaning orthogonal. */
+						float stroke_dot_max = 0.0f;
+
+						/* Get the color of the loop in the opposite direction of the brush movement */
+						uint color_final = 0;
+						for (int j = 0; j < gmap->vert_to_poly[v_index].count; j++) {
+							const int p_index = gmap->vert_to_poly[v_index].indices[j];
+							const int l_index = gmap->vert_to_loop[v_index].indices[j];
+							BLI_assert(data->me->mloop[l_index].v == v_index);
+							const MPoly *mp = &data->me->mpoly[p_index];
+							if (!use_face_sel || mp->flag & ME_FACE_SEL) {
+								const MLoop *ml_other = &data->me->mloop[mp->loopstart];
+								for (int k = 0; k < mp->totloop; k++, ml_other++) {
+									const uint v_other_index = ml_other->v;
+									if (v_other_index != v_index) {
+										const MVert *mv_other = &data->me->mvert[v_other_index];
+
+										/* Get the direction from the selected vert to the neighbor. */
+										float other_dir[3];
+										sub_v3_v3v3(other_dir, mv_curr->co, mv_other->co);
+										project_plane_v3_v3v3(other_dir, other_dir, cache->view_normal);
+
+										normalize_v3(other_dir);
+
+										const float stroke_dot = dot_v3v3(other_dir, brush_dir);
+
+										if (stroke_dot > stroke_dot_max) {
+											stroke_dot_max = stroke_dot;
+											color_final = lcol[mp->loopstart + k];
+											do_color = true;
+										}
+									}
+								}
+							}
+						}
+
+						if (do_color) {
+							/* For each poly owning this vert, paint each loop belonging to this vert. */
+							for (int j = 0; j < gmap->vert_to_poly[v_index].count; j++) {
+								const int p_index = gmap->vert_to_poly[v_index].indices[j];
+								const int l_index = gmap->vert_to_loop[v_index].indices[j];
+								BLI_assert(data->me->mloop[l_index].v == v_index);
+								const MPoly *mp = &data->me->mpoly[p_index];
+								if (!use_face_sel || mp->flag & ME_FACE_SEL) {
+									/* Get the previous loop color */
+									uint color_orig = 0;  /* unused when array is NULL */
+									if (ss->mode.vpaint.previous_color != NULL) {
+										/* Get the previous loop color */
+										if (ss->mode.vpaint.previous_color[l_index] == 0) {
+											ss->mode.vpaint.previous_color[l_index] = lcol[l_index];
+										}
+										color_orig = ss->mode.vpaint.previous_color[l_index];
+									}
+									const float final_alpha =
+									        255 * brush_fade * brush_strength *
+									        view_dot * brush_alpha_pressure * grid_alpha;
+									/* Mix the new color with the original
+									 * based on the brush strength and the curve. */
+									lcol[l_index] = vpaint_blend(
+									        data->vp, lcol[l_index], color_orig, color_final,
+									        final_alpha, 255 * brush_strength);
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+		BKE_pbvh_vertex_iter_end;
+	}
+}
+
+static void calculate_average_color(SculptThreadedTaskData *data, PBVHNode **UNUSED(nodes), int totnode)
+{
+	struct VPaintAverageAccum *accum = MEM_mallocN(sizeof(*accum) * totnode, __func__);
+	data->custom_data = accum;
+
+	BLI_task_parallel_range_ex(
+	        0, totnode, data, NULL, 0, do_vpaint_brush_calc_average_color_cb_ex,
+	        true, false);
+
+	uint accum_len = 0;
+	uint accum_value[3] = {0};
+	uchar blend[4] = {0};
+	for (int i = 0; i < totnode; i++) {
+		accum_len += accum[i].len;
+		accum_value[0] += accum[i].value[0];
+		accum_value[1] += accum[i].value[1];
+		accum_value[2] += accum[i].value[2];
+	}
+	if (accum_len != 0) {
+		blend[0] = round_fl_to_uchar(sqrtf(divide_round_i(accum_value[0], accum_len)));
+		blend[1] = round_fl_to_uchar(sqrtf(divide_round_i(accum_value[1], accum_len)));
+		blend[2] = round_fl_to_uchar(sqrtf(divide_round_i(accum_value[2], accum_len)));
+		blend[3] = 255;
+		data->vpd->paintcol = *((uint *)blend);
+	}
+
+	MEM_SAFE_FREE(data->custom_data);  /* 'accum' */
+}
+
+static void vpaint_paint_leaves(
+        bContext *C, Sculpt *sd, VPaint *vp, struct VPaintData *vpd,
+        Object *ob, Mesh *me, PBVHNode **nodes, int totnode)
+{
+	Brush *brush = ob->sculpt->cache->brush;
+
+	SculptThreadedTaskData data = {
+		.sd = sd, .ob = ob, .brush = brush, .nodes = nodes, .vp = vp, .vpd = vpd,
+		.lcol = (uint *)me->mloopcol, .me = me, .C = C,
+	};
+	switch (brush->vertexpaint_tool) {
+		case PAINT_BLEND_AVERAGE:
+			calculate_average_color(&data, nodes, totnode);
+			BLI_task_parallel_range_ex(
+			    0, totnode, &data, NULL, 0,
+			    do_vpaint_brush_draw_task_cb_ex, true, false);
+			break;
+		case PAINT_BLEND_BLUR:
+			BLI_task_parallel_range_ex(
+			    0, totnode, &data, NULL, 0,
+			    do_vpaint_brush_blur_task_cb_ex, true, false);
+			break;
+		case PAINT_BLEND_SMEAR:
+			BLI_task_parallel_range_ex(
+			    0, totnode, &data, NULL, 0,
+			    do_vpaint_brush_smear_task_cb_ex, true, false);
+			break;
+		default:
+			BLI_task_parallel_range_ex(
+			    0, totnode, &data, NULL, 0,
+			    do_vpaint_brush_draw_task_cb_ex, true, false);
+			break;
+	}
+}
+
+static void vpaint_do_paint(
+        bContext *C, Sculpt *sd, VPaint *vd, struct VPaintData *vpd,
+        Object *ob, Mesh *me, Brush *brush, const char symm, const int axis, const int i, const float angle)
+{
+	SculptSession *ss = ob->sculpt;
+	ss->cache->radial_symmetry_pass = i;
+	sculpt_cache_calc_brushdata_symm(ss->cache, symm, axis, angle);
+	SculptSearchSphereData data;
+	PBVHNode **nodes = NULL;
+	int totnode;
+
+	/* Build a list of all nodes that are potentially within the brush's area of influence */
+	data.ss = ss;
+	data.sd = sd;
+	data.radius_squared = ss->cache->radius_squared;
+	data.original = true;
+	BKE_pbvh_search_gather(ss->pbvh, sculpt_search_sphere_cb, &data, &nodes, &totnode);
+
+	sculpt_pbvh_calc_area_normal(brush, ob, nodes, totnode, true, ss->cache->sculpt_normal_symm);
+
+	/* Paint those leaves. */
+	vpaint_paint_leaves(C, sd, vd, vpd, ob, me, nodes, totnode);
+
+	if (nodes) {
+		MEM_freeN(nodes);
+	}
+}
+
+static void vpaint_do_radial_symmetry(
+        bContext *C, Sculpt *sd, VPaint *vd, struct VPaintData *vpd, Object *ob, Mesh *me,
+        Brush *brush, const char symm, const int axis)
+{
+	for (int i = 1; i < vd->radial_symm[axis - 'X']; i++) {
+		const float angle = (2.0 * M_PI) * i / vd->radial_symm[axis - 'X'];
+		vpaint_do_paint(C, sd, vd, vpd, ob, me, brush, symm, axis, i, angle);
+	}
+}
+
+/* near duplicate of: sculpt.c's, 'do_symmetrical_brush_actions' and 'wpaint_do_symmetrical_brush_actions'. */
+static void vpaint_do_symmetrical_brush_actions(
+        bContext *C, Sculpt *sd, VPaint *vd, struct VPaintData *vpd, Object *ob)
+{
+	Brush *brush = BKE_paint_brush(&vd->paint);
+	Mesh *me = ob->data;
+	SculptSession *ss = ob->sculpt;
+	StrokeCache *cache = ss->cache;
+	const char symm = vd->paint.symmetry_flags & PAINT_SYMM_AXIS_ALL;
+	int i = 0;
+
+	/* initial stroke */
+	vpaint_do_paint(C, sd, vd, vpd, ob, me, brush, i, 'X', 0, 0);
+	vpaint_do_radial_symmetry(C, sd, vd, vpd, ob, me, brush, i, 'X');
+	vpaint_do_radial_symmetry(C, sd, vd, vpd, ob, me, brush, i, 'Y');
+	vpaint_do_radial_symmetry(C, sd, vd, vpd, ob, me, brush, i, 'Z');
+
+	cache->symmetry = symm;
+
+	/* symm is a bit combination of XYZ - 1 is mirror X; 2 is Y; 3 is XY; 4 is Z; 5 is XZ; 6 is YZ; 7 is XYZ */
+	for (i = 1; i <= symm; i++) {
+		if (symm & i && (symm != 5 || i != 3) && (symm != 6 || (i != 3 && i != 5))) {
+			cache->mirror_symmetry_pass = i;
+			cache->radial_symmetry_pass = 0;
+			sculpt_cache_calc_brushdata_symm(cache, i, 0, 0);
+
+			if (i & (1 << 0)) {
+				vpaint_do_paint(C, sd, vd, vpd, ob, me, brush, i, 'X', 0, 0);
+				vpaint_do_radial_symmetry(C, sd, vd, vpd, ob, me, brush, i, 'X');
+			}
+			if (i & (1 << 1)) {
+				vpaint_do_paint(C, sd, vd, vpd, ob, me, brush, i, 'Y', 0, 0);
+				vpaint_do_radial_symmetry(C, sd, vd, vpd, ob, me, brush, i, 'Y');
+			}
+			if (i & (1 << 2)) {
+				vpaint_do_paint(C, sd, vd, vpd, ob, me, brush, i, 'Z', 0, 0);
+				vpaint_do_radial_symmetry(C, sd, vd, vpd, ob, me, brush, i, 'Z');
+			}
 		}
 	}
+
+	copy_v3_v3(cache->true_last_location, cache->true_location);
+	cache->is_last_valid = true;
 }
 
 static void vpaint_stroke_update_step(bContext *C, struct PaintStroke *stroke, PointerRNA *itemptr)
@@ -2796,65 +2743,26 @@ static void vpaint_stroke_update_step(bContext *C, struct PaintStroke *stroke, P
 	ToolSettings *ts = CTX_data_tool_settings(C);
 	struct VPaintData *vpd = paint_stroke_mode_data(stroke);
 	VPaint *vp = ts->vpaint;
-	Brush *brush = BKE_paint_brush(&vp->paint);
 	ViewContext *vc = &vpd->vc;
 	Object *ob = vc->obact;
-	Mesh *me = ob->data;
-	float mat[4][4];
-	int *indexar = vpd->indexar;
-	int totindex, index;
-	float mval[2];
+	Sculpt *sd = CTX_data_tool_settings(C)->sculpt;
 
-	const float pressure = RNA_float_get(itemptr, "pressure");
-	const float brush_size_pressure =
-	        BKE_brush_size_get(scene, brush) * (BKE_brush_use_size_pressure(scene, brush) ? pressure : 1.0f);
-	const float brush_alpha_pressure =
-	        BKE_brush_alpha_get(scene, brush) * (BKE_brush_use_alpha_pressure(scene, brush) ? pressure : 1.0f);
+	vwpaint_update_cache_variants(C, vp, ob, itemptr);
 
-	RNA_float_get_array(itemptr, "mouse", mval);
+	float mat[4][4];
+	float mval[2];
 
-	view3d_operator_needs_opengl(C);
 	ED_view3d_init_mats_rv3d(ob, vc->rv3d);
 
 	/* load projection matrix */
 	mul_m4_m4m4(mat, vc->rv3d->persmat, ob->obmat);
 
-	/* which faces are involved */
-	totindex = sample_backbuf_area(vc, indexar, me->totpoly, mval[0], mval[1], brush_size_pressure);
-
-	if ((me->editflag & ME_EDIT_PAINT_FACE_SEL) && me->mpoly) {
-		for (index = 0; index < totindex; index++) {
-			if (indexar[index] && indexar[index] <= me->totpoly) {
-				const MPoly *mpoly = &me->mpoly[indexar[index] - 1];
-
-				if ((mpoly->flag & ME_FACE_SEL) == 0)
-					indexar[index] = 0;
-			}
-		}
-	}
-	
 	swap_m4m4(vc->rv3d->persmat, mat);
 
-	/* incase we have modifiers */
-	ED_vpaint_proj_handle_update(vpd->vp_handle, vc->ar, mval);
-
-	/* clear modified tag for blur tool */
-	if (vpd->mlooptag)
-		memset(vpd->mlooptag, 0, sizeof(bool) * me->totloop);
+	vpaint_do_symmetrical_brush_actions(C, sd, vp, vpd, ob);
 
-	for (index = 0; index < totindex; index++) {
-		if (indexar[index] && indexar[index] <= me->totpoly) {
-			vpaint_paint_poly(vp, vpd, me, indexar[index] - 1, mval, brush_size_pressure, brush_alpha_pressure);
-		}
-	}
-		
 	swap_m4m4(vc->rv3d->persmat, mat);
 
-	/* was disabled because it is slow, but necessary for blur */
-	if (brush->vertexpaint_tool == PAINT_BLEND_BLUR) {
-		do_shared_vertexcol(me, vpd->mlooptag);
-	}
-
 	/* calculate pivot for rotation around seletion if needed */
 	/* also needed for "View Selected" on last stroke */
 	paint_last_stroke_update(scene, vc->ar, mval);
@@ -2874,32 +2782,26 @@ static void vpaint_stroke_update_step(bContext *C, struct PaintStroke *stroke, P
 
 static void vpaint_stroke_done(const bContext *C, struct PaintStroke *stroke)
 {
-	ToolSettings *ts = CTX_data_tool_settings(C);
 	struct VPaintData *vpd = paint_stroke_mode_data(stroke);
 	ViewContext *vc = &vpd->vc;
 	Object *ob = vc->obact;
-	Mesh *me = ob->data;
-
-	ED_vpaint_proj_handle_free(vpd->vp_handle);
-	MEM_freeN(vpd->indexar);
-	
-	/* frees prev buffer */
-	copy_vpaint_prev(ts->vpaint, NULL, 0);
 
 	if (vpd->mlooptag)
 		MEM_freeN(vpd->mlooptag);
 
 	WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
-	DAG_id_tag_update(&me->id, 0);
 
 	MEM_freeN(vpd);
+
+	sculpt_cache_free(ob->sculpt->cache);
+	ob->sculpt->cache = NULL;
 }
 
 static int vpaint_invoke(bContext *C, wmOperator *op, const wmEvent *event)
 {
 	int retval;
 
-	op->customdata = paint_stroke_new(C, op, NULL, vpaint_stroke_test_start,
+	op->customdata = paint_stroke_new(C, op, sculpt_stroke_get_location, vpaint_stroke_test_start,
 	                                  vpaint_stroke_update_step, NULL,
 	                                  vpaint_stroke_done, event->type);
 	
@@ -2919,7 +2821,7 @@ static int vpaint_invoke(bContext *C, wmOperator *op, const wmEvent *event)
 
 static int vpaint_exec(bContext *C, wmOperator *op)
 {
-	op->customdata = paint_stroke_new(C, op, NULL, vpaint_stroke_test_start,
+	op->customdata = paint_stroke_new(C, op, sculpt_stroke_get_location, vpaint_stroke_test_start,
 	                                  vpaint_stroke_update_step, NULL,
 	                                  vpaint_stroke_done, 0);
 
@@ -2931,6 +2833,12 @@ static int vpaint_exec(bContext *C, wmOperator *op)
 
 static void vpaint_cancel(bContext *C, wmOperator *op)
 {
+	Object *ob = CTX_data_active_object(C);
+	if (ob->sculpt->cache) {
+		sculpt_cache_free(ob->sculpt->cache);
+		ob->sculpt->cache = NULL;
+	}
+
 	paint_stroke_cancel(C, op);
 }
 
@@ -2953,369 +2861,3 @@ void PAINT_OT_vertex_paint(wmOperatorType *ot)
 
 	paint_stroke_operator_properties(ot);
 }
-
-/* ********************** weight from bones operator ******************* */
-
-static int weight_from_bones_poll(bContext *C)
-{
-	Object *ob = CTX_data_active_object(C);
-
-	return (ob && (ob->mode & OB_MODE_WEIGHT_PAINT) && modifiers_isDeformedByArmature(ob));
-}
-
-static int weight_from_bones_exec(bContext *C, wmOperator *op)
-{
-	Scene *scene = CTX_data_scene(C);
-	Object *ob = CTX_data_active_object(C);
-	Object *armob = modifiers_isDeformedByArmature(ob);
-	Mesh *me = ob->data;
-	int type = RNA_enum_get(op->ptr, "type");
-
-	create_vgroups_from_armature(op->reports, scene, ob, armob, type, (me->editflag & ME_EDIT_MIRROR_X));
-
-	DAG_id_tag_update(&me->id, 0);
-	WM_event_add_notifier(C, NC_GEOM | ND_DATA, me);
-
-	return OPERATOR_FINISHED;
-}
-
-void PAINT_OT_weight_from_bones(wmOperatorType *ot)
-{
-	static EnumPropertyItem type_items[] = {
-		{ARM_GROUPS_AUTO, "AUTOMATIC", 0, "Automatic", "Automatic weights from bones"},
-		{ARM_GROUPS_ENVELOPE, "ENVELOPES", 0, "From Envelopes", "Weights from envelopes with user defined radius"},
-		{0, NULL, 0, NULL, NULL}};
-
-	/* identifiers */
-	ot->name = "Weight from Bones";
-	ot->idname = "PAINT_OT_weight_from_bones";
-	ot->description = "Set the weights of the groups matching the attached armature's selected bones, "
-	                  "using the distance between the vertices and the bones";
-	
-	/* api callbacks */
-	ot->exec = weight_from_bones_exec;
-	ot->invoke = WM_menu_invoke;
-	ot->poll = weight_from_bones_poll;
-	
-	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-
-	/* properties */
-	ot->prop = RNA_def_enum(ot->srna, "type", type_items, 0, "Type", "Method to use for assigning weights");
-}
-
-/* *** VGroups Gradient *** */
-typedef struct DMGradient_vertStore {
-	float sco[2];
-	float weight_orig;
-	enum {
-		VGRAD_STORE_NOP      = 0,
-		VGRAD_STORE_DW_EXIST = (1 << 0)
-	} flag;
-} DMGradient_vertStore;
-
-typedef struct DMGradient_userData {
-	struct ARegion *ar;
-	Scene *scene;
-	Mesh *me;
-	Brush *brush;
-	const float *sco_start;     /* [2] */
-	const float *sco_end;       /* [2] */
-	float        sco_line_div;  /* store (1.0f / len_v2v2(sco_start, sco_end)) */
-	int def_nr;
-	bool is_init;
-	DMGradient_vertStore *vert_cache;
-	/* only for init */
-	BLI_bitmap *vert_visit;
-
-	/* options */
-	short use_select;
-	short type;
-	float weightpaint;
-} DMGradient_userData;
-
-static void gradientVert_update(DMGradient_userData *grad_data, int index)
-{
-	Mesh *me = grad_data->me;
-	DMGradient_vertStore *vs = &grad_data->vert_cache[index];
-	float alpha;
-
-	if (grad_data->type == WPAINT_GRADIENT_TYPE_LINEAR) {
-		alpha = line_point_factor_v2(vs->sco, grad_data->sco_start, grad_data->sco_end);
-	}
-	else {
-		BLI_assert(grad_data->type == WPAINT_GRADIENT_TYPE_RADIAL);
-		alpha = len_v2v2(grad_data->sco_start, vs->sco) * grad_data->sco_line_div;
-	}
-	/* no need to clamp 'alpha' yet */
-
-	/* adjust weight */
-	alpha = BKE_brush_curve_strength_clamped(grad_data->brush, alpha, 1.0f);
-
-	if (alpha != 0.0f) {
-		MDeformVert *dv = &me->dvert[index];
-		MDeformWeight *dw = defvert_verify_index(dv, grad_data->def_nr);
-		// dw->weight = alpha; // testing
-		int tool = grad_data->brush->vertexpaint_tool;
-		float testw;
-
-		/* init if we just added */
-		testw = wpaint_blend_tool(tool, vs->weight_orig, grad_data->weightpaint, alpha * grad_data->brush->alpha);
-		CLAMP(testw, 0.0f, 1.0f);
-		dw->weight = testw;
-	}
-	else {
-		MDeformVert *dv = &me->dvert[index];
-		if (vs->flag & VGRAD_STORE_DW_EXIST) {
-			/* normally we NULL check, but in this case we know it exists */
-			MDeformWeight *dw = defvert_find_index(dv, grad_data->def_nr);
-			dw->weight = vs->weight_orig;
-		}
-		else {
-			/* wasn't originally existing, remove */
-			MDeformWeight *dw = defvert_find_index(dv, grad_data->def_nr);
-			if (dw) {
-				defvert_remove_group(dv, dw);
-			}
-		}
-	}
-}
-
-static void gradientVertUpdate__mapFunc(
-        void *userData, int index, const float UNUSED(co[3]),
-        const float UNUSED(no_f[3]), const short UNUSED(no_s[3]))
-{
-	DMGradient_userData *grad_data = userData;
-	Mesh *me = grad_data->me;
-	if ((grad_data->use_select == false) || (me->mvert[index].flag & SELECT)) {
-		DMGradient_vertStore *vs = &grad_data->vert_cache[index];
-		if (vs->sco[0] != FLT_MAX) {
-			gradientVert_update(grad_data, index);
-		}
-	}
-}
-
-static void gradientVertInit__mapFunc(
-        void *userData, int index, const float co[3],
-        const float UNUSED(no_f[3]), const short UNUSED(no_s[3]))
-{
-	DMGradient_userData *grad_data = userData;
-	Mesh *me = grad_data->me;
-
-	if ((grad_data->use_select == false) || (me->mvert[index].flag & SELECT)) {
-		/* run first pass only,
-		 * the screen coords of the verts need to be cached because
-		 * updating the mesh may move them about (entering feedback loop) */
-
-		if (BLI_BITMAP_TEST(grad_data->vert_visit, index) == 0) {
-			DMGradient_vertStore *vs = &grad_data->vert_cache[index];
-			if (ED_view3d_project_float_object(grad_data->ar,
-			                                   co, vs->sco,
-			                                   V3D_PROJ_TEST_CLIP_BB | V3D_PROJ_TEST_CLIP_NEAR) == V3D_PROJ_RET_OK)
-			{
-				/* ok */
-				MDeformVert *dv = &me->dvert[index];
-				MDeformWeight *dw;
-				dw = defvert_find_index(dv, grad_data->def_nr);
-				if (dw) {
-					vs->weight_orig = dw->weight;
-					vs->flag = VGRAD_STORE_DW_EXIST;
-				}
-				else {
-					vs->weight_orig = 0.0f;
-					vs->flag = VGRAD_STORE_NOP;
-				}
-
-				BLI_BITMAP_ENABLE(grad_data->vert_visit, index);
-
-				gradientVert_update(grad_data, index);
-			}
-			else {
-				/* no go */
-				copy_v2_fl(vs->sco, FLT_MAX);
-			}
-		}
-	}
-}
-
-static int paint_weight_gradient_modal(bContext *C, wmOperator *op, const wmEvent *event)
-{
-	int ret = WM_gesture_straightline_modal(C, op, event);
-
-	if (ret & OPERATOR_RUNNING_MODAL) {
-		if (event->type == LEFTMOUSE && event->val == KM_RELEASE) {  /* XXX, hardcoded */
-			/* generally crap! redo! */
-			WM_gesture_straightline_cancel(C, op);
-			ret &= ~OPERATOR_RUNNING_MODAL;
-			ret |= OPERATOR_FINISHED;
-		}
-	}
-
-	if (ret & OPERATOR_CANCELLED) {
-		ToolSettings *ts = CTX_data_tool_settings(C);
-		VPaint *wp = ts->wpaint;
-		Object *ob = CTX_data_active_object(C);
-		Mesh *me = ob->data;
-		if (wp->wpaint_prev) {
-			BKE_defvert_array_free_elems(me->dvert, me->totvert);
-			BKE_defvert_array_copy(me->dvert, wp->wpaint_prev, me->totvert);
-			free_wpaint_prev(wp);
-		}
-
-		DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
-		WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
-	}
-	else if (ret & OPERATOR_FINISHED) {
-		ToolSettings *ts = CTX_data_tool_settings(C);
-		VPaint *wp = ts->wpaint;
-		free_wpaint_prev(wp);
-	}
-
-	return ret;
-}
-
-static int paint_weight_gradient_exec(bContext *C, wmOperator *op)
-{
-	wmGesture *gesture = op->customdata;
-	DMGradient_vertStore *vert_cache;
-	struct ARegion *ar = CTX_wm_region(C);
-	Scene *scene = CTX_data_scene(C);
-	Object *ob = CTX_data_active_object(C);
-	Mesh *me = ob->data;
-	int x_start = RNA_int_get(op->ptr, "xstart");
-	int y_start = RNA_int_get(op->ptr, "ystart");
-	int x_end = RNA_int_get(op->ptr, "xend");
-	int y_end = RNA_int_get(op->ptr, "yend");
-	float sco_start[2] = {x_start, y_start};
-	float sco_end[2] = {x_end, y_end};
-	const bool is_interactive = (gesture != NULL);
-	DerivedMesh *dm = mesh_get_derived_final(scene, ob, scene->customdata_mask);
-
-	DMGradient_userData data = {NULL};
-
-	if (is_interactive) {
-		if (gesture->userdata == NULL) {
-			VPaint *wp = scene->toolsettings->wpaint;
-
-			gesture->userdata = MEM_mallocN(sizeof(DMGradient_vertStore) * me->totvert, __func__);
-			data.is_init = true;
-
-			copy_wpaint_prev(wp, me->dvert, me->totvert);
-
-			/* on init only, convert face -> vert sel  */
-			if (me->editflag & ME_EDIT_PAINT_FACE_SEL) {
-				BKE_mesh_flush_select_from_polys(me);
-			}
-		}
-
-		vert_cache = gesture->userdata;
-	}
-	else {
-		if (wpaint_ensure_data(C, op, 0, NULL) == false) {
-			return OPERATOR_CANCELLED;
-		}
-
-		data.is_init = true;
-		vert_cache = MEM_mallocN(sizeof(DMGradient_vertStore) * me->totvert, __func__);
-	}
-
-	data.ar = ar;
-	data.scene = scene;
-	data.me = ob->data;
-	data.sco_start = sco_start;
-	data.sco_end   = sco_end;
-	data.sco_line_div = 1.0f / len_v2v2(sco_start, sco_end);
-	data.def_nr = ob->actdef - 1;
-	data.use_select = (me->editflag & (ME_EDIT_PAINT_FACE_SEL | ME_EDIT_PAINT_VERT_SEL));
-	data.vert_cache = vert_cache;
-	data.vert_visit = NULL;
-	data.type = RNA_enum_get(op->ptr, "type");
-
-	{
-		ToolSettings *ts = CTX_data_tool_settings(C);
-		VPaint *wp = ts->wpaint;
-		struct Brush *brush = BKE_paint_brush(&wp->paint);
-
-		curvemapping_initialize(brush->curve);
-
-		data.brush = brush;
-		data.weightpaint = BKE_brush_weight_get(scene, brush);
-	}
-
-	ED_view3d_init_mats_rv3d(ob, ar->regiondata);
-
-	if (data.is_init) {
-		data.vert_visit = BLI_BITMAP_NEW(me->totvert, __func__);
-
-		dm->foreachMappedVert(dm, gradientVertInit__mapFunc, &data, DM_FOREACH_NOP);
-
-		MEM_freeN(data.vert_visit);
-		data.vert_visit = NULL;
-	}
-	else {
-		dm->foreachMappedVert(dm, gradientVertUpdate__mapFunc, &data, DM_FOREACH_NOP);
-	}
-
-	DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
-	WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
-
-	if (is_interactive == false) {
-		MEM_freeN(vert_cache);
-	}
-
-	return OPERATOR_FINISHED;
-}
-
-static int paint_weight_gradient_invoke(bContext *C, wmOperator *op, const wmEvent *event)
-{
-	int ret;
-
-	if (wpaint_ensure_data(C, op, 0, NULL) == false) {
-		return OPERATOR_CANCELLED;
-	}
-
-	ret = WM_gesture_straightline_invoke(C, op, event);
-	if (ret & OPERATOR_RUNNING_MODAL) {
-		struct ARegion *ar = CTX_wm_region(C);
-		if (ar->regiontype == RGN_TYPE_WINDOW) {
-			/* TODO, hardcoded, extend WM_gesture_straightline_ */
-			if (event->type == LEFTMOUSE && event->val == KM_PRESS) {
-				wmGesture *gesture = op->customdata;
-				gesture->mode = 1;
-			}
-		}
-	}
-	return ret;
-}
-
-void PAINT_OT_weight_gradient(wmOperatorType *ot)
-{
-	/* defined in DNA_space_types.h */
-	static EnumPropertyItem gradient_types[] = {
-		{WPAINT_GRADIENT_TYPE_LINEAR, "LINEAR", 0, "Linear", ""},
-		{WPAINT_GRADIENT_TYPE_RADIAL, "RADIAL", 0, "Radial", ""},
-		{0, NULL, 0, NULL, NULL}
-	};
-
-	PropertyRNA *prop;
-
-	/* identifiers */
-	ot->name = "Weight Gradient";
-	ot->idname = "PAINT_OT_weight_gradient";
-	ot->description = "Draw a line to apply a weight gradient to selected vertices";
-
-	/* api callbacks */
-	ot->invoke = paint_weight_gradient_invoke;
-	ot->modal = paint_weight_gradient_modal;
-	ot->exec = paint_weight_gradient_exec;
-	ot->poll = weight_paint_poll;
-	ot->cancel = WM_gesture_straightline_cancel;
-
-	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-
-	prop = RNA_def_enum(ot->srna, "type", gradient_types, 0, "Type", "");
-	RNA_def_property_flag(prop, PROP_SKIP_SAVE);
-
-	WM_operator_properties_gesture_straightline(ot, CURSOR_EDIT);
-}
diff --git a/source/blender/editors/sculpt_paint/paint_vertex_color_ops.c b/source/blender/editors/sculpt_paint/paint_vertex_color_ops.c
new file mode 100644
index 00000000000..4acd4ddbd8d
--- /dev/null
+++ b/source/blender/editors/sculpt_paint/paint_vertex_color_ops.c
@@ -0,0 +1,574 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/editors/sculpt_paint/paint_vertex_color_ops.c
+ *  \ingroup edsculpt
+ */
+
+#include "MEM_guardedalloc.h"
+
+#include "DNA_mesh_types.h"
+#include "DNA_meshdata_types.h"
+#include "DNA_object_types.h"
+#include "DNA_scene_types.h"
+
+#include "BLI_math_base.h"
+#include "BLI_math_color.h"
+
+#include "BKE_context.h"
+#include "BKE_depsgraph.h"
+#include "BKE_mesh.h"
+#include "BKE_deform.h"
+
+#include "RNA_access.h"
+#include "RNA_define.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "ED_mesh.h"
+
+#include "paint_intern.h"  /* own include */
+
+
+static int vertex_weight_paint_mode_poll(bContext *C)
+{
+	Object *ob = CTX_data_active_object(C);
+	Mesh *me = BKE_mesh_from_object(ob);
+	return (ob && (ob->mode == OB_MODE_VERTEX_PAINT || ob->mode == OB_MODE_WEIGHT_PAINT)) &&
+	       (me && me->totpoly && me->dvert);
+}
+
+/* -------------------------------------------------------------------- */
+/** \name Set Vertex Colors Operator
+ * \{ */
+
+static bool vertex_color_set(Object *ob, uint paintcol)
+{
+	Mesh *me;
+	const MPoly *mp;
+	int i, j;
+
+	if (((me = BKE_mesh_from_object(ob)) == NULL) ||
+	    (ED_mesh_color_ensure(me, NULL) == false))
+	{
+		return false;
+	}
+
+	const bool use_face_sel = (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
+	const bool use_vert_sel = (me->editflag & ME_EDIT_PAINT_VERT_SEL) != 0;
+
+	mp = me->mpoly;
+	for (i = 0; i < me->totpoly; i++, mp++) {
+		MLoopCol *lcol = me->mloopcol + mp->loopstart;
+
+		if (use_face_sel && !(mp->flag & ME_FACE_SEL))
+			continue;
+
+		j = 0;
+		do {
+			uint vidx = me->mloop[mp->loopstart + j].v;
+			if (!(use_vert_sel && !(me->mvert[vidx].flag & SELECT))) {
+				*(int *)lcol = paintcol;
+			}
+			lcol++;
+			j++;
+		} while (j < mp->totloop);
+
+	}
+
+	/* remove stale me->mcol, will be added later */
+	BKE_mesh_tessface_clear(me);
+
+	DAG_id_tag_update(&me->id, 0);
+
+	return true;
+}
+
+static int vertex_color_set_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	Scene *scene = CTX_data_scene(C);
+	Object *obact = CTX_data_active_object(C);
+	unsigned int paintcol = vpaint_get_current_col(scene, scene->toolsettings->vpaint);
+
+	if (vertex_color_set(obact, paintcol)) {
+		WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, obact);
+		return OPERATOR_FINISHED;
+	}
+	else {
+		return OPERATOR_CANCELLED;
+	}
+}
+
+void PAINT_OT_vertex_color_set(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Set Vertex Colors";
+	ot->idname = "PAINT_OT_vertex_color_set";
+	ot->description = "Fill the active vertex color layer with the current paint color";
+
+	/* api callbacks */
+	ot->exec = vertex_color_set_exec;
+	ot->poll = vertex_paint_mode_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Vertex Color from Weight Operator
+ * \{ */
+
+static bool vertex_paint_from_weight(Object *ob)
+{
+	Mesh *me;
+	const MPoly *mp;
+	int vgroup_active;
+
+	if (((me = BKE_mesh_from_object(ob)) == NULL ||
+	    (ED_mesh_color_ensure(me, NULL)) == false))
+	{
+		return false;
+	}
+
+	/* TODO: respect selection. */
+	mp = me->mpoly;
+	vgroup_active = ob->actdef - 1;
+	for (int i = 0; i < me->totpoly; i++, mp++) {
+		MLoopCol *lcol = &me->mloopcol[mp->loopstart];
+		uint j = 0;
+		do {
+			uint vidx = me->mloop[mp->loopstart + j].v;
+			const float weight = defvert_find_weight(&me->dvert[vidx], vgroup_active);
+			const uchar grayscale = weight * 255;
+			lcol->r = grayscale;
+			lcol->b = grayscale;
+			lcol->g = grayscale;
+			lcol++;
+			j++;
+		} while (j < mp->totloop);
+	}
+
+	DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
+
+	return true;
+}
+
+static int vertex_paint_from_weight_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	Object *obact = CTX_data_active_object(C);
+	if (vertex_paint_from_weight(obact)) {
+		WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, obact);
+		return OPERATOR_FINISHED;
+	}
+	else {
+		return OPERATOR_CANCELLED;
+	}
+}
+
+void PAINT_OT_vertex_color_from_weight(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Vertex Color from Weight";
+	ot->idname = "PAINT_OT_vertex_color_from_weight";
+	ot->description = "Converts active weight into greyscale vertex colors";
+
+	/* api callback */
+	ot->exec = vertex_paint_from_weight_exec;
+	ot->poll = vertex_weight_paint_mode_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* TODO: invert, alpha */
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Smooth Vertex Colors Operator
+ * \{ */
+
+static void vertex_color_smooth_looptag(Mesh *me, bool *mlooptag)
+{
+	const bool use_face_sel = (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
+	const MPoly *mp;
+	int (*scol)[4];
+	int i, j;
+	bool has_shared = false;
+
+	/* if no mloopcol: do not do */
+	/* if mtexpoly: only the involved faces, otherwise all */
+
+	if (me->mloopcol == NULL || me->totvert == 0 || me->totpoly == 0) return;
+
+	scol = MEM_callocN(sizeof(int) * me->totvert * 5, "scol");
+
+	for (i = 0, mp = me->mpoly; i < me->totpoly; i++, mp++) {
+		if ((use_face_sel == false) || (mp->flag & ME_FACE_SEL)) {
+			const MLoop *ml = me->mloop + mp->loopstart;
+			MLoopCol *lcol = me->mloopcol + mp->loopstart;
+			for (j = 0; j < mp->totloop; j++, ml++, lcol++) {
+				scol[ml->v][0] += lcol->r;
+				scol[ml->v][1] += lcol->g;
+				scol[ml->v][2] += lcol->b;
+				scol[ml->v][3] += 1;
+				has_shared = 1;
+			}
+		}
+	}
+
+	if (has_shared) {
+		for (i = 0; i < me->totvert; i++) {
+			if (scol[i][3] != 0) {
+				scol[i][0] = divide_round_i(scol[i][0], scol[i][3]);
+				scol[i][1] = divide_round_i(scol[i][1], scol[i][3]);
+				scol[i][2] = divide_round_i(scol[i][2], scol[i][3]);
+			}
+		}
+
+		for (i = 0, mp = me->mpoly; i < me->totpoly; i++, mp++) {
+			if ((use_face_sel == false) || (mp->flag & ME_FACE_SEL)) {
+				const MLoop *ml = me->mloop + mp->loopstart;
+				MLoopCol *lcol = me->mloopcol + mp->loopstart;
+				for (j = 0; j < mp->totloop; j++, ml++, lcol++) {
+					if (mlooptag[mp->loopstart + j]) {
+						lcol->r = scol[ml->v][0];
+						lcol->g = scol[ml->v][1];
+						lcol->b = scol[ml->v][2];
+					}
+				}
+			}
+		}
+	}
+
+	MEM_freeN(scol);
+}
+
+static bool vertex_color_smooth(Object *ob)
+{
+	Mesh *me;
+	const MPoly *mp;
+
+	int i, j;
+
+	bool *mlooptag;
+
+	if (((me = BKE_mesh_from_object(ob)) == NULL) ||
+	    (ED_mesh_color_ensure(me, NULL) == false))
+	{
+		return false;
+	}
+
+	const bool use_face_sel = (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
+
+	mlooptag = MEM_callocN(sizeof(bool) * me->totloop, "VPaintData mlooptag");
+
+	/* simply tag loops of selected faces */
+	mp = me->mpoly;
+	for (i = 0; i < me->totpoly; i++, mp++) {
+		const MLoop *ml = me->mloop + mp->loopstart;
+		int ml_index = mp->loopstart;
+
+		if (use_face_sel && !(mp->flag & ME_FACE_SEL))
+			continue;
+
+		for (j = 0; j < mp->totloop; j++, ml_index++, ml++) {
+			mlooptag[ml_index] = true;
+		}
+	}
+
+	/* remove stale me->mcol, will be added later */
+	BKE_mesh_tessface_clear(me);
+
+	vertex_color_smooth_looptag(me, mlooptag);
+
+	MEM_freeN(mlooptag);
+
+	DAG_id_tag_update(&me->id, 0);
+
+	return true;
+}
+
+
+static int vertex_color_smooth_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	Object *obact = CTX_data_active_object(C);
+	if (vertex_color_smooth(obact)) {
+		WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, obact);
+		return OPERATOR_FINISHED;
+	}
+	else {
+		return OPERATOR_CANCELLED;
+	}
+}
+
+void PAINT_OT_vertex_color_smooth(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Smooth Vertex Colors";
+	ot->idname = "PAINT_OT_vertex_color_smooth";
+	ot->description = "Smooth colors across vertices";
+
+	/* api callbacks */
+	ot->exec = vertex_color_smooth_exec;
+	ot->poll = vertex_paint_mode_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Vertex Color Transformation Operators
+ * \{ */
+
+struct VPaintTx_BrightContrastData {
+	/* pre-calculated */
+	float gain;
+	float offset;
+};
+
+static void vpaint_tx_brightness_contrast(const float col[3], const void *user_data, float r_col[3])
+{
+	const struct VPaintTx_BrightContrastData *data = user_data;
+
+	for (int i = 0; i < 3; i++) {
+		r_col[i] = data->gain * col[i] + data->offset;
+	}
+}
+
+static int vertex_color_brightness_contrast_exec(bContext *C, wmOperator *op)
+{
+	Object *obact = CTX_data_active_object(C);
+
+	float gain, offset;
+	{
+		float brightness = RNA_float_get(op->ptr, "brightness");
+		float contrast = RNA_float_get(op->ptr, "contrast");
+		brightness /= 100.0f;
+		float delta = contrast / 200.0f;
+		gain = 1.0f - delta * 2.0f;
+		/*
+		 * The algorithm is by Werner D. Streidt
+		 * (http://visca.com/ffactory/archives/5-99/msg00021.html)
+		 * Extracted of OpenCV demhist.c
+		 */
+		if (contrast > 0) {
+			gain = 1.0f / ((gain != 0.0f) ? gain : FLT_EPSILON);
+			offset = gain * (brightness - delta);
+		}
+		else {
+			delta *= -1;
+			offset = gain * (brightness + delta);
+		}
+	}
+
+	const struct VPaintTx_BrightContrastData user_data = {
+		.gain = gain,
+		.offset = offset,
+	};
+
+	if (ED_vpaint_color_transform(obact, vpaint_tx_brightness_contrast, &user_data)) {
+		WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, obact);
+		return OPERATOR_FINISHED;
+	}
+	else {
+		return OPERATOR_CANCELLED;
+	}
+}
+
+void PAINT_OT_vertex_color_brightness_contrast(wmOperatorType *ot)
+{
+	PropertyRNA *prop;
+
+	/* identifiers */
+	ot->name = "Vertex Paint Bright/Contrast";
+	ot->idname = "PAINT_OT_vertex_color_brightness_contrast";
+	ot->description = "Adjust vertex color brightness/contrast";
+
+	/* api callbacks */
+	ot->exec = vertex_color_brightness_contrast_exec;
+	ot->poll = vertex_paint_mode_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* params */
+	const float min = -100, max = +100;
+	prop = RNA_def_float(ot->srna, "brightness", 0.0f, min, max, "Brightness", "", min, max);
+	prop = RNA_def_float(ot->srna, "contrast", 0.0f, min, max, "Contrast", "", min, max);
+	RNA_def_property_ui_range(prop, min, max, 1, 1);
+}
+
+struct VPaintTx_HueSatData {
+	float hue;
+	float sat;
+	float val;
+};
+
+static void vpaint_tx_hsv(const float col[3], const void *user_data, float r_col[3])
+{
+	const struct VPaintTx_HueSatData *data = user_data;
+	float hsv[3];
+	rgb_to_hsv_v(col, hsv);
+
+	hsv[0] += (data->hue - 0.5f);
+	if (hsv[0] > 1.0f) {
+		hsv[0] -= 1.0f;
+	}
+	else if (hsv[0] < 0.0f) {
+		hsv[0] += 1.0f;
+	}
+	hsv[1] *= data->sat;
+	hsv[2] *= data->val;
+
+	hsv_to_rgb_v(hsv, r_col);
+}
+
+static int vertex_color_hsv_exec(bContext *C, wmOperator *op)
+{
+	Object *obact = CTX_data_active_object(C);
+
+	const struct VPaintTx_HueSatData user_data = {
+		.hue = RNA_float_get(op->ptr, "h"),
+		.sat = RNA_float_get(op->ptr, "s"),
+		.val = RNA_float_get(op->ptr, "v"),
+	};
+
+	if (ED_vpaint_color_transform(obact, vpaint_tx_hsv, &user_data)) {
+		WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, obact);
+		return OPERATOR_FINISHED;
+	}
+	else {
+		return OPERATOR_CANCELLED;
+	}
+}
+
+void PAINT_OT_vertex_color_hsv(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Vertex Paint Hue Saturation Value";
+	ot->idname = "PAINT_OT_vertex_color_hsv";
+	ot->description = "Adjust vertex color HSV values";
+
+	/* api callbacks */
+	ot->exec = vertex_color_hsv_exec;
+	ot->poll = vertex_paint_mode_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* params */
+	RNA_def_float(ot->srna, "h", 0.5f, 0.0f, 1.0f, "Hue", "", 0.0f, 1.0f);
+	RNA_def_float(ot->srna, "s", 1.0f, 0.0f, 2.0f, "Saturation", "", 0.0f, 2.0f);
+	RNA_def_float(ot->srna, "v", 1.0f, 0.0f, 2.0f, "Value", "", 0.0f, 2.0f);
+}
+
+static void vpaint_tx_invert(const float col[3], const void *UNUSED(user_data), float r_col[3])
+{
+	for (int i = 0; i < 3; i++) {
+		r_col[i] = 1.0f - col[i];
+	}
+}
+
+static int vertex_color_invert_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	Object *obact = CTX_data_active_object(C);
+
+	if (ED_vpaint_color_transform(obact, vpaint_tx_invert, NULL)) {
+		WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, obact);
+		return OPERATOR_FINISHED;
+	}
+	else {
+		return OPERATOR_CANCELLED;
+	}
+}
+
+void PAINT_OT_vertex_color_invert(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Vertex Paint Invert";
+	ot->idname = "PAINT_OT_vertex_color_invert";
+	ot->description = "Invert RGB values";
+
+	/* api callbacks */
+	ot->exec = vertex_color_invert_exec;
+	ot->poll = vertex_paint_mode_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
+
+
+struct VPaintTx_LevelsData {
+	float gain;
+	float offset;
+};
+
+static void vpaint_tx_levels(const float col[3], const void *user_data, float r_col[3])
+{
+	const struct VPaintTx_LevelsData *data = user_data;
+	for (int i = 0; i < 3; i++) {
+		r_col[i] = data->gain * (col[i] + data->offset);
+	}
+}
+
+static int vertex_color_levels_exec(bContext *C, wmOperator *op)
+{
+	Object *obact = CTX_data_active_object(C);
+
+	const struct VPaintTx_LevelsData user_data = {
+		.gain = RNA_float_get(op->ptr, "gain"),
+		.offset = RNA_float_get(op->ptr, "offset"),
+	};
+
+	if (ED_vpaint_color_transform(obact, vpaint_tx_levels, &user_data)) {
+		WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, obact);
+		return OPERATOR_FINISHED;
+	}
+	else {
+		return OPERATOR_CANCELLED;
+	}
+}
+
+void PAINT_OT_vertex_color_levels(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Vertex Paint Levels";
+	ot->idname = "PAINT_OT_vertex_color_levels";
+	ot->description = "Adjust levels of vertex colors";
+
+	/* api callbacks */
+	ot->exec = vertex_color_levels_exec;
+	ot->poll = vertex_paint_mode_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* params */
+	RNA_def_float(ot->srna, "offset", 0.0f, -1.0f, 1.0f, "Offset", "Value to add to colors", -1.0f, 1.0f);
+	RNA_def_float(ot->srna, "gain", 1.0f, 0.0f, FLT_MAX, "Gain", "Value to multiply colors by", 0.0f, 10.0f);
+}
+
+/** \} */
\ No newline at end of file
diff --git a/source/blender/editors/sculpt_paint/paint_vertex_color_utils.c b/source/blender/editors/sculpt_paint/paint_vertex_color_utils.c
new file mode 100644
index 00000000000..a2ba8818c1f
--- /dev/null
+++ b/source/blender/editors/sculpt_paint/paint_vertex_color_utils.c
@@ -0,0 +1,648 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/editors/sculpt_paint/paint_vertex_color_utils.c
+ *  \ingroup edsculpt
+ *
+ * Intended for use by `paint_vertex.c` & `paint_vertex_color_ops.c`.
+ */
+
+#include "MEM_guardedalloc.h"
+
+#include "DNA_brush_types.h"
+#include "DNA_mesh_types.h"
+#include "DNA_meshdata_types.h"
+#include "DNA_object_types.h"
+#include "DNA_scene_types.h"
+
+#include "BLI_math_base.h"
+#include "BLI_math_color.h"
+
+#include "IMB_colormanagement.h"
+
+#include "BKE_context.h"
+#include "BKE_depsgraph.h"
+#include "BKE_mesh.h"
+
+#include "ED_mesh.h"
+
+#include "paint_intern.h"  /* own include */
+
+#define EPS_SATURATION 0.0005f
+
+/**
+ * Apply callback to each vertex of the active vertex color layer.
+ */
+bool ED_vpaint_color_transform(
+        struct Object *ob,
+        VPaintTransform_Callback vpaint_tx_fn,
+        const void *user_data)
+{
+	Mesh *me;
+	const MPoly *mp;
+
+	if (((me = BKE_mesh_from_object(ob)) == NULL) ||
+	    (ED_mesh_color_ensure(me, NULL) == false))
+	{
+		return false;
+	}
+
+	const bool use_face_sel = (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
+	mp = me->mpoly;
+
+	for (int i = 0; i < me->totpoly; i++, mp++) {
+		MLoopCol *lcol = &me->mloopcol[mp->loopstart];
+
+		if (use_face_sel && !(mp->flag & ME_FACE_SEL)) {
+			continue;
+		}
+
+		for (int j = 0; j < mp->totloop; j++, lcol++) {
+			float col[3];
+			rgb_uchar_to_float(col, &lcol->r);
+
+			vpaint_tx_fn(col, user_data, col);
+
+			rgb_float_to_uchar(&lcol->r, col);
+		}
+	}
+
+	/* remove stale me->mcol, will be added later */
+	BKE_mesh_tessface_clear(me);
+
+	DAG_id_tag_update(&me->id, 0);
+
+	return true;
+}
+
+/* -------------------------------------------------------------------- */
+/** \name Color Blending Modes
+ * \{ */
+
+BLI_INLINE uint mcol_blend(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int mfac;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	if (fac >= 255) {
+		return col2;
+	}
+
+	mfac = 255 - fac;
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp  = (uchar *)&col;
+
+	/* Updated to use the rgb squared color model which blends nicer. */
+	int r1 = cp1[0] * cp1[0];
+	int g1 = cp1[1] * cp1[1];
+	int b1 = cp1[2] * cp1[2];
+	int a1 = cp1[3] * cp1[3];
+
+	int r2 = cp2[0] * cp2[0];
+	int g2 = cp2[1] * cp2[1];
+	int b2 = cp2[2] * cp2[2];
+	int a2 = cp2[3] * cp2[3];
+
+	cp[0] = round_fl_to_uchar(sqrtf(divide_round_i((mfac * r1 + fac * r2), 255)));
+	cp[1] = round_fl_to_uchar(sqrtf(divide_round_i((mfac * g1 + fac * g2), 255)));
+	cp[2] = round_fl_to_uchar(sqrtf(divide_round_i((mfac * b1 + fac * b2), 255)));
+	cp[3] = round_fl_to_uchar(sqrtf(divide_round_i((mfac * a1 + fac * a2), 255)));
+
+	return col;
+}
+
+BLI_INLINE uint mcol_add(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int temp;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp  = (uchar *)&col;
+
+	temp = cp1[0] + divide_round_i((fac * cp2[0]), 255);
+	cp[0] = (temp > 254) ? 255 : temp;
+	temp = cp1[1] + divide_round_i((fac * cp2[1]), 255);
+	cp[1] = (temp > 254) ? 255 : temp;
+	temp = cp1[2] + divide_round_i((fac * cp2[2]), 255);
+	cp[2] = (temp > 254) ? 255 : temp;
+	temp = cp1[3] + divide_round_i((fac * cp2[3]), 255);
+	cp[3] = (temp > 254) ? 255 : temp;
+
+	return col;
+}
+
+BLI_INLINE uint mcol_sub(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int temp;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp  = (uchar *)&col;
+
+	temp = cp1[0] - divide_round_i((fac * cp2[0]), 255);
+	cp[0] = (temp < 0) ? 0 : temp;
+	temp = cp1[1] - divide_round_i((fac * cp2[1]), 255);
+	cp[1] = (temp < 0) ? 0 : temp;
+	temp = cp1[2] - divide_round_i((fac * cp2[2]), 255);
+	cp[2] = (temp < 0) ? 0 : temp;
+	temp = cp1[3] - divide_round_i((fac * cp2[3]), 255);
+	cp[3] = (temp < 0) ? 0 : temp;
+
+	return col;
+}
+
+BLI_INLINE uint mcol_mul(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int mfac;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	mfac = 255 - fac;
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp  = (uchar *)&col;
+
+	/* first mul, then blend the fac */
+	cp[0] = divide_round_i(mfac * cp1[0] * 255 + fac * cp2[0] * cp1[0], 255 * 255);
+	cp[1] = divide_round_i(mfac * cp1[1] * 255 + fac * cp2[1] * cp1[1], 255 * 255);
+	cp[2] = divide_round_i(mfac * cp1[2] * 255 + fac * cp2[2] * cp1[2], 255 * 255);
+	cp[3] = divide_round_i(mfac * cp1[3] * 255 + fac * cp2[3] * cp1[3], 255 * 255);
+
+	return col;
+}
+
+BLI_INLINE uint mcol_lighten(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int mfac;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+	else if (fac >= 255) {
+		return col2;
+	}
+
+	mfac = 255 - fac;
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp  = (uchar *)&col;
+
+	/* See if are lighter, if so mix, else don't do anything.
+	 * if the paint col is darker then the original, then ignore */
+	if (IMB_colormanagement_get_luminance_byte(cp1) > IMB_colormanagement_get_luminance_byte(cp2)) {
+		return col1;
+	}
+
+	cp[0] = divide_round_i(mfac * cp1[0] + fac * cp2[0], 255);
+	cp[1] = divide_round_i(mfac * cp1[1] + fac * cp2[1], 255);
+	cp[2] = divide_round_i(mfac * cp1[2] + fac * cp2[2], 255);
+	cp[3] = divide_round_i(mfac * cp1[3] + fac * cp2[3], 255);
+
+	return col;
+}
+
+BLI_INLINE uint mcol_darken(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int mfac;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+	else if (fac >= 255) {
+		return col2;
+	}
+
+	mfac = 255 - fac;
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp  = (uchar *)&col;
+
+	/* See if were darker, if so mix, else don't do anything.
+	 * if the paint col is brighter then the original, then ignore */
+	if (IMB_colormanagement_get_luminance_byte(cp1) < IMB_colormanagement_get_luminance_byte(cp2)) {
+		return col1;
+	}
+
+	cp[0] = divide_round_i((mfac * cp1[0] + fac * cp2[0]), 255);
+	cp[1] = divide_round_i((mfac * cp1[1] + fac * cp2[1]), 255);
+	cp[2] = divide_round_i((mfac * cp1[2] + fac * cp2[2]), 255);
+	cp[3] = divide_round_i((mfac * cp1[3] + fac * cp2[3]), 255);
+	return col;
+}
+
+BLI_INLINE uint mcol_colordodge(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int mfac,temp;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	mfac = 255 - fac;
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp = (uchar *)&col;
+
+	temp = (cp2[0] == 255) ? 255 : min_ii((cp1[0] * 225) / (255 - cp2[0]), 255);
+	cp[0] = (mfac * cp1[0] + temp * fac) / 255;
+	temp = (cp2[1] == 255) ? 255 : min_ii((cp1[1] * 225) / (255 - cp2[1]), 255);
+	cp[1] = (mfac * cp1[1] + temp * fac) / 255;
+	temp = (cp2[2] == 255) ? 255 : min_ii((cp1[2] * 225 )/ (255 - cp2[2]), 255);
+	cp[2] = (mfac * cp1[2] + temp * fac) / 255;
+	temp = (cp2[3] == 255) ? 255 : min_ii((cp1[3] * 225) / (255 - cp2[3]), 255);
+	cp[3] = (mfac * cp1[3] + temp * fac) / 255;
+	return col;
+}
+
+BLI_INLINE uint mcol_difference(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int mfac, temp;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	mfac = 255 - fac;
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp = (uchar *)&col;
+
+	temp = abs(cp1[0] - cp2[0]);
+	cp[0] = (mfac * cp1[0] + temp * fac) / 255;
+	temp = abs(cp1[1] - cp2[1]);
+	cp[1] = (mfac * cp1[1] + temp * fac) / 255;
+	temp = abs(cp1[2] - cp2[2]);
+	cp[2] = (mfac * cp1[2] + temp * fac) / 255;
+	temp = abs(cp1[3] - cp2[3]);
+	cp[3] = (mfac * cp1[3] + temp * fac) / 255;
+	return col;
+}
+
+BLI_INLINE uint mcol_screen(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int mfac, temp;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	mfac = 255 - fac;
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp = (uchar *)&col;
+
+	temp = max_ii(255 - (((255 - cp1[0]) * (255 - cp2[0])) / 255), 0);
+	cp[0] = (mfac * cp1[0] + temp * fac) / 255;
+	temp = max_ii(255 - (((255 - cp1[1]) * (255 - cp2[1])) / 255), 0);
+	cp[1] = (mfac * cp1[1] + temp * fac) / 255;
+	temp = max_ii(255 - (((255 - cp1[2]) * (255 - cp2[2])) / 255), 0);
+	cp[2] = (mfac * cp1[2] + temp * fac) / 255;
+	temp = max_ii(255 - (((255 - cp1[3]) * (255 - cp2[3])) / 255), 0);
+	cp[3] = (mfac * cp1[3] + temp * fac) / 255;
+	return col;
+}
+
+BLI_INLINE uint mcol_hardlight(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int mfac, temp;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	mfac = 255 - fac;
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp = (uchar *)&col;
+
+	int i = 0;
+
+	for (i = 0; i < 4; i++) {
+		if (cp2[i] > 127) {
+			temp = 255 - ((255 - 2 * (cp2[i] - 127)) * (255 - cp1[i]) / 255);
+		}
+		else {
+			temp = (2 * cp2[i] * cp1[i]) >> 8;
+		}
+		cp[i] = min_ii((mfac * cp1[i] + temp * fac) / 255, 255);
+	}
+	return col;
+}
+
+BLI_INLINE uint mcol_overlay(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int mfac, temp;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	mfac = 255 - fac;
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp = (uchar *)&col;
+
+	int i = 0;
+
+	for (i = 0; i < 4; i++) {
+		if (cp1[i] > 127) {
+			temp = 255 - ((255 - 2 * (cp1[i] - 127)) * (255 - cp2[i]) / 255);
+		}
+		else {
+			temp = (2 * cp2[i] * cp1[i]) >> 8;
+		}
+		cp[i] = min_ii((mfac * cp1[i] + temp * fac) / 255, 255);
+	}
+	return col;
+}
+
+BLI_INLINE uint mcol_softlight(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int mfac, temp;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	mfac = 255 - fac;
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp = (uchar *)&col;
+
+	int i = 0;
+
+	for (i = 0; i < 4; i++) {
+		if (cp1[i] < 127) {
+			temp = ((2 * ((cp2[i] / 2) + 64)) * cp1[i]) / 255;
+		}
+		else {
+			temp = 255 - (2 * (255 - ((cp2[i] / 2) + 64)) * (255 - cp1[i]) / 255);
+		}
+		cp[i] = (temp * fac + cp1[i] * mfac) / 255;
+	}
+	return col;
+}
+
+BLI_INLINE uint mcol_exclusion(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int mfac, temp;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	mfac = 255 - fac;
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp = (uchar *)&col;
+
+	int i = 0;
+
+	for (i = 0; i < 4; i++) {
+		temp = 127 - ((2 * (cp1[i] - 127) * (cp2[i] - 127)) / 255);
+		cp[i] = (temp * fac + cp1[i] * mfac) / 255;
+	}
+	return col;
+}
+
+BLI_INLINE uint mcol_luminosity(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int mfac;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	mfac = 255 - fac;
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp = (uchar *)&col;
+
+	float h1, s1, v1;
+	float h2, s2, v2;
+	float r, g, b;
+	rgb_to_hsv(cp1[0] / 255.0f, cp1[1] / 255.0f, cp1[2] / 255.0f, &h1, &s1, &v1);
+	rgb_to_hsv(cp2[0] / 255.0f, cp2[1] / 255.0f, cp2[2] / 255.0f, &h2, &s2, &v2);
+
+	v1 = v2;
+
+	hsv_to_rgb(h1, s1, v1, &r, &g, &b);
+
+	cp[0] = ((int)(r * 255.0f) * fac + mfac * cp1[0]) / 255;
+	cp[1] = ((int)(g * 255.0f) * fac + mfac * cp1[1]) / 255;
+	cp[2] = ((int)(b * 255.0f) * fac + mfac * cp1[2]) / 255;
+	cp[3] = ((int)(cp2[3])     * fac + mfac * cp1[3]) / 255;
+	return col;
+}
+
+BLI_INLINE uint mcol_saturation(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int mfac;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	mfac = 255 - fac;
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp = (uchar *)&col;
+
+	float h1, s1, v1;
+	float h2, s2, v2;
+	float r, g, b;
+	rgb_to_hsv(cp1[0] / 255.0f, cp1[1] / 255.0f, cp1[2] / 255.0f, &h1, &s1, &v1);
+	rgb_to_hsv(cp2[0] / 255.0f, cp2[1] / 255.0f, cp2[2] / 255.0f, &h2, &s2, &v2);
+
+	if (s1 > EPS_SATURATION) {
+		s1 = s2;
+	}
+
+	hsv_to_rgb(h1, s1, v1, &r, &g, &b);
+
+	cp[0] = ((int)(r * 255.0f) * fac + mfac * cp1[0]) / 255;
+	cp[1] = ((int)(g * 255.0f) * fac + mfac * cp1[1]) / 255;
+	cp[2] = ((int)(b * 255.0f) * fac + mfac * cp1[2]) / 255;
+	return col;
+}
+
+BLI_INLINE uint mcol_hue(uint col1, uint col2, int fac)
+{
+	uchar *cp1, *cp2, *cp;
+	int mfac;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	mfac = 255 - fac;
+
+	cp1 = (uchar *)&col1;
+	cp2 = (uchar *)&col2;
+	cp = (uchar *)&col;
+
+	float h1, s1, v1;
+	float h2, s2, v2;
+	float r, g, b;
+	rgb_to_hsv(cp1[0] / 255.0f, cp1[1] / 255.0f, cp1[2] / 255.0f, &h1, &s1, &v1);
+	rgb_to_hsv(cp2[0] / 255.0f, cp2[1] / 255.0f, cp2[2] / 255.0f, &h2, &s2, &v2);
+
+	h1 = h2;
+
+	hsv_to_rgb(h1, s1, v1, &r, &g, &b);
+
+	cp[0] = ((int)(r * 255.0f) * fac + mfac * cp1[0]) / 255;
+	cp[1] = ((int)(g * 255.0f) * fac + mfac * cp1[1]) / 255;
+	cp[2] = ((int)(b * 255.0f) * fac + mfac * cp1[2]) / 255;
+	cp[3] = ((int)(cp2[3])     * fac + mfac * cp1[3]) / 255;
+	return col;
+}
+
+BLI_INLINE uint mcol_alpha_add(uint col1, int fac)
+{
+	uchar *cp1, *cp;
+	int temp;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	cp1 = (uchar *)&col1;
+	cp  = (uchar *)&col;
+
+	temp = cp1[3] + fac;
+	cp[3] = (temp > 254) ? 255 : temp;
+
+	return col;
+}
+
+BLI_INLINE uint mcol_alpha_sub(uint col1, int fac)
+{
+	uchar *cp1, *cp;
+	int temp;
+	uint col = 0;
+
+	if (fac == 0) {
+		return col1;
+	}
+
+	cp1 = (uchar *)&col1;
+	cp  = (uchar *)&col;
+
+	temp = cp1[3] - fac;
+	cp[3] = temp < 0 ? 0 : temp;
+
+	return col;
+}
+
+/* wpaint has 'ED_wpaint_blend_tool' */
+uint ED_vpaint_blend_tool(
+        const int tool, const uint col,
+        const uint paintcol, const int alpha_i)
+{
+	switch (tool) {
+		case PAINT_BLEND_MIX:
+		case PAINT_BLEND_BLUR:       return mcol_blend(col, paintcol, alpha_i);
+		case PAINT_BLEND_AVERAGE:    return mcol_blend(col, paintcol, alpha_i);
+		case PAINT_BLEND_SMEAR:      return mcol_blend(col, paintcol, alpha_i);
+		case PAINT_BLEND_ADD:        return mcol_add(col, paintcol, alpha_i);
+		case PAINT_BLEND_SUB:        return mcol_sub(col, paintcol, alpha_i);
+		case PAINT_BLEND_MUL:        return mcol_mul(col, paintcol, alpha_i);
+		case PAINT_BLEND_LIGHTEN:    return mcol_lighten(col, paintcol, alpha_i);
+		case PAINT_BLEND_DARKEN:     return mcol_darken(col, paintcol, alpha_i);
+		case PAINT_BLEND_COLORDODGE: return mcol_colordodge(col, paintcol, alpha_i);
+		case PAINT_BLEND_DIFFERENCE: return mcol_difference(col, paintcol, alpha_i);
+		case PAINT_BLEND_SCREEN:     return mcol_screen(col, paintcol, alpha_i);
+		case PAINT_BLEND_HARDLIGHT:  return mcol_hardlight(col, paintcol, alpha_i);
+		case PAINT_BLEND_OVERLAY:    return mcol_overlay(col, paintcol, alpha_i);
+		case PAINT_BLEND_SOFTLIGHT:  return mcol_softlight(col, paintcol, alpha_i);
+		case PAINT_BLEND_EXCLUSION:  return mcol_exclusion(col, paintcol, alpha_i);
+		case PAINT_BLEND_LUMINOCITY: return mcol_luminosity(col, paintcol, alpha_i);
+		case PAINT_BLEND_SATURATION: return mcol_saturation(col, paintcol, alpha_i);
+		case PAINT_BLEND_HUE:        return mcol_hue(col, paintcol, alpha_i);
+		/* non-color */
+		case PAINT_BLEND_ALPHA_SUB:  return mcol_alpha_sub(col, alpha_i);
+		case PAINT_BLEND_ALPHA_ADD:  return mcol_alpha_add(col, alpha_i);
+		default:
+			BLI_assert(0);
+			return 0;
+	}
+}
+
+/** \} */
diff --git a/source/blender/editors/sculpt_paint/paint_vertex_weight_ops.c b/source/blender/editors/sculpt_paint/paint_vertex_weight_ops.c
new file mode 100644
index 00000000000..4e807ccb4ef
--- /dev/null
+++ b/source/blender/editors/sculpt_paint/paint_vertex_weight_ops.c
@@ -0,0 +1,861 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/editors/sculpt_paint/paint_vertex_weight_ops.c
+ *  \ingroup edsculpt
+ */
+
+#include "MEM_guardedalloc.h"
+
+#include "BLI_blenlib.h"
+#include "BLI_math.h"
+#include "BLI_array_utils.h"
+#include "BLI_bitmap.h"
+#include "BLI_task.h"
+#include "BLI_string_utils.h"
+
+#include "IMB_imbuf.h"
+#include "IMB_imbuf_types.h"
+#include "IMB_colormanagement.h"
+
+//#include "DNA_armature_types.h"
+#include "DNA_mesh_types.h"
+#include "DNA_particle_types.h"
+#include "DNA_brush_types.h"
+#include "DNA_object_types.h"
+#include "DNA_scene_types.h"
+
+#include "RNA_access.h"
+#include "RNA_define.h"
+#include "RNA_enum_types.h"
+
+#include "BKE_DerivedMesh.h"
+#include "BKE_brush.h"
+#include "BKE_context.h"
+#include "BKE_depsgraph.h"
+#include "BKE_deform.h"
+#include "BKE_mesh.h"
+#include "BKE_mesh_mapping.h"
+#include "BKE_modifier.h"
+#include "BKE_object_deform.h"
+#include "BKE_paint.h"
+#include "BKE_report.h"
+#include "BKE_colortools.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "ED_armature.h"
+#include "ED_mesh.h"
+#include "ED_screen.h"
+#include "ED_view3d.h"
+
+#include "paint_intern.h"  /* own include */
+
+/* -------------------------------------------------------------------- */
+/** \name Store Previous Weights
+ *
+ * Use to avoid feedback loop w/ mirrored edits.
+ * \{ */
+
+struct WPaintPrev {
+	/* previous vertex weights */
+	struct MDeformVert *wpaint_prev;
+	/* allocation size of prev buffers */
+	int tot;
+};
+
+
+static void wpaint_prev_init(struct WPaintPrev *wpp)
+{
+	wpp->wpaint_prev = NULL;
+	wpp->tot = 0;
+}
+
+static void wpaint_prev_create(struct WPaintPrev *wpp, MDeformVert *dverts, int dcount)
+{
+	wpaint_prev_init(wpp);
+
+	if (dverts && dcount) {
+		wpp->wpaint_prev = MEM_mallocN(sizeof(MDeformVert) * dcount, "wpaint prev");
+		wpp->tot = dcount;
+		BKE_defvert_array_copy(wpp->wpaint_prev, dverts, dcount);
+	}
+}
+
+static void wpaint_prev_destroy(struct WPaintPrev *wpp)
+{
+	if (wpp->wpaint_prev) {
+		BKE_defvert_array_free(wpp->wpaint_prev, wpp->tot);
+	}
+	wpp->wpaint_prev = NULL;
+	wpp->tot = 0;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Weight from Bones Operator
+ * \{ */
+
+static int weight_from_bones_poll(bContext *C)
+{
+	Object *ob = CTX_data_active_object(C);
+
+	return (ob && (ob->mode & OB_MODE_WEIGHT_PAINT) && modifiers_isDeformedByArmature(ob));
+}
+
+static int weight_from_bones_exec(bContext *C, wmOperator *op)
+{
+	Scene *scene = CTX_data_scene(C);
+	Object *ob = CTX_data_active_object(C);
+	Object *armob = modifiers_isDeformedByArmature(ob);
+	Mesh *me = ob->data;
+	int type = RNA_enum_get(op->ptr, "type");
+
+	create_vgroups_from_armature(op->reports, scene, ob, armob, type, (me->editflag & ME_EDIT_MIRROR_X));
+
+	DAG_id_tag_update(&me->id, 0);
+	WM_event_add_notifier(C, NC_GEOM | ND_DATA, me);
+
+	return OPERATOR_FINISHED;
+}
+
+void PAINT_OT_weight_from_bones(wmOperatorType *ot)
+{
+	static EnumPropertyItem type_items[] = {
+		{ARM_GROUPS_AUTO, "AUTOMATIC", 0, "Automatic", "Automatic weights from bones"},
+		{ARM_GROUPS_ENVELOPE, "ENVELOPES", 0, "From Envelopes", "Weights from envelopes with user defined radius"},
+		{0, NULL, 0, NULL, NULL}};
+
+	/* identifiers */
+	ot->name = "Weight from Bones";
+	ot->idname = "PAINT_OT_weight_from_bones";
+	ot->description = "Set the weights of the groups matching the attached armature's selected bones, "
+	                  "using the distance between the vertices and the bones";
+
+	/* api callbacks */
+	ot->exec = weight_from_bones_exec;
+	ot->invoke = WM_menu_invoke;
+	ot->poll = weight_from_bones_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* properties */
+	ot->prop = RNA_def_enum(ot->srna, "type", type_items, 0, "Type", "Method to use for assigning weights");
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Sample Weight Operator
+ * \{ */
+
+/* sets wp->weight to the closest weight value to vertex */
+/* note: we cant sample frontbuf, weight colors are interpolated too unpredictable */
+static int weight_sample_invoke(bContext *C, wmOperator *op, const wmEvent *event)
+{
+	ViewContext vc;
+	Mesh *me;
+	bool changed = false;
+
+	view3d_set_viewcontext(C, &vc);
+	me = BKE_mesh_from_object(vc.obact);
+
+	if (me && me->dvert && vc.v3d && vc.rv3d && (vc.obact->actdef != 0)) {
+		const bool use_vert_sel = (me->editflag & ME_EDIT_PAINT_VERT_SEL) != 0;
+		int v_idx_best = -1;
+		uint index;
+
+		view3d_operator_needs_opengl(C);
+		ED_view3d_init_mats_rv3d(vc.obact, vc.rv3d);
+
+		if (use_vert_sel) {
+			if (ED_mesh_pick_vert(C, vc.obact, event->mval, &index, ED_MESH_PICK_DEFAULT_VERT_SIZE, true)) {
+				v_idx_best = index;
+			}
+		}
+		else {
+			if (ED_mesh_pick_face_vert(C, vc.obact, event->mval, &index, ED_MESH_PICK_DEFAULT_FACE_SIZE)) {
+				v_idx_best = index;
+			}
+			else if (ED_mesh_pick_face(C, vc.obact, event->mval, &index, ED_MESH_PICK_DEFAULT_FACE_SIZE)) {
+				/* this relies on knowning the internal worksings of ED_mesh_pick_face_vert() */
+				BKE_report(op->reports, RPT_WARNING, "The modifier used does not support deformed locations");
+			}
+		}
+
+		if (v_idx_best != -1) { /* should always be valid */
+			ToolSettings *ts = vc.scene->toolsettings;
+			Brush *brush = BKE_paint_brush(&ts->wpaint->paint);
+			const int vgroup_active = vc.obact->actdef - 1;
+			float vgroup_weight = defvert_find_weight(&me->dvert[v_idx_best], vgroup_active);
+
+			/* use combined weight in multipaint mode, since that's what is displayed to the user in the colors */
+			if (ts->multipaint) {
+				int defbase_tot_sel;
+				const int defbase_tot = BLI_listbase_count(&vc.obact->defbase);
+				bool *defbase_sel = BKE_object_defgroup_selected_get(vc.obact, defbase_tot, &defbase_tot_sel);
+
+				if (defbase_tot_sel > 1) {
+					if (me->editflag & ME_EDIT_MIRROR_X) {
+						BKE_object_defgroup_mirror_selection(
+						        vc.obact, defbase_tot, defbase_sel, defbase_sel, &defbase_tot_sel);
+					}
+
+					vgroup_weight = BKE_defvert_multipaint_collective_weight(
+					        &me->dvert[v_idx_best], defbase_tot, defbase_sel, defbase_tot_sel, ts->auto_normalize);
+
+					/* if autonormalize is enabled, but weights are not normalized, the value can exceed 1 */
+					CLAMP(vgroup_weight, 0.0f, 1.0f);
+				}
+
+				MEM_freeN(defbase_sel);
+			}
+
+			BKE_brush_weight_set(vc.scene, brush, vgroup_weight);
+			changed = true;
+		}
+	}
+
+	if (changed) {
+		/* not really correct since the brush didnt change, but redraws the toolbar */
+		WM_main_add_notifier(NC_BRUSH | NA_EDITED, NULL); /* ts->wpaint->paint.brush */
+
+		return OPERATOR_FINISHED;
+	}
+	else {
+		return OPERATOR_CANCELLED;
+	}
+}
+
+void PAINT_OT_weight_sample(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Weight Paint Sample Weight";
+	ot->idname = "PAINT_OT_weight_sample";
+	ot->description = "Use the mouse to sample a weight in the 3D view";
+
+	/* api callbacks */
+	ot->invoke = weight_sample_invoke;
+	ot->poll = weight_paint_mode_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_UNDO;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Weight Paint Sample Group Operator
+ * \{ */
+
+/* samples cursor location, and gives menu with vertex groups to activate */
+static bool weight_paint_sample_enum_itemf__helper(const MDeformVert *dvert, const int defbase_tot, int *groups)
+{
+	/* this func fills in used vgroup's */
+	bool found = false;
+	int i = dvert->totweight;
+	MDeformWeight *dw;
+	for (dw = dvert->dw; i > 0; dw++, i--) {
+		if (dw->def_nr < defbase_tot) {
+			groups[dw->def_nr] = true;
+			found = true;
+		}
+	}
+	return found;
+}
+static EnumPropertyItem *weight_paint_sample_enum_itemf(
+        bContext *C, PointerRNA *UNUSED(ptr), PropertyRNA *UNUSED(prop), bool *r_free)
+{
+	if (C) {
+		wmWindow *win = CTX_wm_window(C);
+		if (win && win->eventstate) {
+			ViewContext vc;
+			Mesh *me;
+
+			view3d_set_viewcontext(C, &vc);
+			me = BKE_mesh_from_object(vc.obact);
+
+			if (me && me->dvert && vc.v3d && vc.rv3d && vc.obact->defbase.first) {
+				const int defbase_tot = BLI_listbase_count(&vc.obact->defbase);
+				const bool use_vert_sel = (me->editflag & ME_EDIT_PAINT_VERT_SEL) != 0;
+				int *groups = MEM_callocN(defbase_tot * sizeof(int), "groups");
+				bool found = false;
+				uint index;
+
+				const int mval[2] = {
+				    win->eventstate->x - vc.ar->winrct.xmin,
+				    win->eventstate->y - vc.ar->winrct.ymin,
+				};
+
+				view3d_operator_needs_opengl(C);
+				ED_view3d_init_mats_rv3d(vc.obact, vc.rv3d);
+
+				if (use_vert_sel) {
+					if (ED_mesh_pick_vert(C, vc.obact, mval, &index, ED_MESH_PICK_DEFAULT_VERT_SIZE, true)) {
+						MDeformVert *dvert = &me->dvert[index];
+						found |= weight_paint_sample_enum_itemf__helper(dvert, defbase_tot, groups);
+					}
+				}
+				else {
+					if (ED_mesh_pick_face(C, vc.obact, mval, &index, ED_MESH_PICK_DEFAULT_FACE_SIZE)) {
+						const MPoly *mp = &me->mpoly[index];
+						uint fidx = mp->totloop - 1;
+
+						do {
+							MDeformVert *dvert = &me->dvert[me->mloop[mp->loopstart + fidx].v];
+							found |= weight_paint_sample_enum_itemf__helper(dvert, defbase_tot, groups);
+						} while (fidx--);
+					}
+				}
+
+				if (found == false) {
+					MEM_freeN(groups);
+				}
+				else {
+					EnumPropertyItem *item = NULL, item_tmp = {0};
+					int totitem = 0;
+					int i = 0;
+					bDeformGroup *dg;
+					for (dg = vc.obact->defbase.first; dg && i < defbase_tot; i++, dg = dg->next) {
+						if (groups[i]) {
+							item_tmp.identifier = item_tmp.name = dg->name;
+							item_tmp.value = i;
+							RNA_enum_item_add(&item, &totitem, &item_tmp);
+						}
+					}
+
+					RNA_enum_item_end(&item, &totitem);
+					*r_free = true;
+
+					MEM_freeN(groups);
+					return item;
+				}
+			}
+		}
+	}
+
+	return DummyRNA_NULL_items;
+}
+
+static int weight_sample_group_exec(bContext *C, wmOperator *op)
+{
+	int type = RNA_enum_get(op->ptr, "group");
+	ViewContext vc;
+	view3d_set_viewcontext(C, &vc);
+
+	BLI_assert(type + 1 >= 0);
+	vc.obact->actdef = type + 1;
+
+	DAG_id_tag_update(&vc.obact->id, OB_RECALC_DATA);
+	WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, vc.obact);
+	return OPERATOR_FINISHED;
+}
+
+/* TODO, we could make this a menu into OBJECT_OT_vertex_group_set_active rather than its own operator */
+void PAINT_OT_weight_sample_group(wmOperatorType *ot)
+{
+	PropertyRNA *prop = NULL;
+
+	/* identifiers */
+	ot->name = "Weight Paint Sample Group";
+	ot->idname = "PAINT_OT_weight_sample_group";
+	ot->description = "Select one of the vertex groups available under current mouse position";
+
+	/* api callbacks */
+	ot->exec = weight_sample_group_exec;
+	ot->invoke = WM_menu_invoke;
+	ot->poll = weight_paint_mode_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_UNDO;
+
+	/* keyingset to use (dynamic enum) */
+	prop = RNA_def_enum(ot->srna, "group", DummyRNA_DEFAULT_items, 0, "Keying Set", "The Keying Set to use");
+	RNA_def_enum_funcs(prop, weight_paint_sample_enum_itemf);
+	RNA_def_property_flag(prop, PROP_ENUM_NO_TRANSLATE);
+	ot->prop = prop;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Weight Set Operator
+ * \{ */
+
+/* fills in the selected faces with the current weight and vertex group */
+static bool weight_paint_set(Object *ob, float paintweight)
+{
+	Mesh *me = ob->data;
+	const MPoly *mp;
+	MDeformWeight *dw, *dw_prev;
+	int vgroup_active, vgroup_mirror = -1;
+	uint index;
+	const bool topology = (me->editflag & ME_EDIT_MIRROR_TOPO) != 0;
+
+	/* mutually exclusive, could be made into a */
+	const short paint_selmode = ME_EDIT_PAINT_SEL_MODE(me);
+
+	if (me->totpoly == 0 || me->dvert == NULL || !me->mpoly) {
+		return false;
+	}
+
+	vgroup_active = ob->actdef - 1;
+
+	/* if mirror painting, find the other group */
+	if (me->editflag & ME_EDIT_MIRROR_X) {
+		vgroup_mirror = ED_wpaint_mirror_vgroup_ensure(ob, vgroup_active);
+	}
+
+	struct WPaintPrev wpp;
+	wpaint_prev_create(&wpp, me->dvert, me->totvert);
+
+	for (index = 0, mp = me->mpoly; index < me->totpoly; index++, mp++) {
+		uint fidx = mp->totloop - 1;
+
+		if ((paint_selmode == SCE_SELECT_FACE) && !(mp->flag & ME_FACE_SEL)) {
+			continue;
+		}
+
+		do {
+			uint vidx = me->mloop[mp->loopstart + fidx].v;
+
+			if (!me->dvert[vidx].flag) {
+				if ((paint_selmode == SCE_SELECT_VERTEX) && !(me->mvert[vidx].flag & SELECT)) {
+					continue;
+				}
+
+				dw = defvert_verify_index(&me->dvert[vidx], vgroup_active);
+				if (dw) {
+					dw_prev = defvert_verify_index(wpp.wpaint_prev + vidx, vgroup_active);
+					dw_prev->weight = dw->weight; /* set the undo weight */
+					dw->weight = paintweight;
+
+					if (me->editflag & ME_EDIT_MIRROR_X) {  /* x mirror painting */
+						int j = mesh_get_x_mirror_vert(ob, NULL, vidx, topology);
+						if (j >= 0) {
+							/* copy, not paint again */
+							if (vgroup_mirror != -1) {
+								dw = defvert_verify_index(me->dvert + j, vgroup_mirror);
+								dw_prev = defvert_verify_index(wpp.wpaint_prev + j, vgroup_mirror);
+							}
+							else {
+								dw = defvert_verify_index(me->dvert + j, vgroup_active);
+								dw_prev = defvert_verify_index(wpp.wpaint_prev + j, vgroup_active);
+							}
+							dw_prev->weight = dw->weight; /* set the undo weight */
+							dw->weight = paintweight;
+						}
+					}
+				}
+				me->dvert[vidx].flag = 1;
+			}
+
+		} while (fidx--);
+	}
+
+	{
+		MDeformVert *dv = me->dvert;
+		for (index = me->totvert; index != 0; index--, dv++) {
+			dv->flag = 0;
+		}
+	}
+
+	wpaint_prev_destroy(&wpp);
+
+	DAG_id_tag_update(&me->id, 0);
+
+	return true;
+}
+
+
+static int weight_paint_set_exec(bContext *C, wmOperator *op)
+{
+	struct Scene *scene = CTX_data_scene(C);
+	Object *obact = CTX_data_active_object(C);
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	Brush *brush = BKE_paint_brush(&ts->wpaint->paint);
+	float vgroup_weight = BKE_brush_weight_get(scene, brush);
+
+	if (ED_wpaint_ensure_data(C, op->reports, WPAINT_ENSURE_MIRROR, NULL) == false) {
+		return OPERATOR_CANCELLED;
+	}
+
+	if (weight_paint_set(obact, vgroup_weight)) {
+		ED_region_tag_redraw(CTX_wm_region(C)); /* XXX - should redraw all 3D views */
+		return OPERATOR_FINISHED;
+	}
+	else {
+		return OPERATOR_CANCELLED;
+	}
+}
+
+void PAINT_OT_weight_set(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Set Weight";
+	ot->idname = "PAINT_OT_weight_set";
+	ot->description = "Fill the active vertex group with the current paint weight";
+
+	/* api callbacks */
+	ot->exec = weight_paint_set_exec;
+	ot->poll = mask_paint_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Interactive Weight Gradient Operator
+ * \{ */
+
+/* *** VGroups Gradient *** */
+typedef struct DMGradient_vertStore {
+	float sco[2];
+	float weight_orig;
+	enum {
+		VGRAD_STORE_NOP      = 0,
+		VGRAD_STORE_DW_EXIST = (1 << 0)
+	} flag;
+} DMGradient_vertStore;
+
+typedef struct DMGradient_vertStoreBase {
+	struct WPaintPrev wpp;
+	DMGradient_vertStore elem[0];
+} DMGradient_vertStoreBase;
+
+typedef struct DMGradient_userData {
+	struct ARegion *ar;
+	Scene *scene;
+	Mesh *me;
+	Brush *brush;
+	const float *sco_start;     /* [2] */
+	const float *sco_end;       /* [2] */
+	float        sco_line_div;  /* store (1.0f / len_v2v2(sco_start, sco_end)) */
+	int def_nr;
+	bool is_init;
+	DMGradient_vertStoreBase *vert_cache;
+	/* only for init */
+	BLI_bitmap *vert_visit;
+
+	/* options */
+	short use_select;
+	short type;
+	float weightpaint;
+} DMGradient_userData;
+
+static void gradientVert_update(DMGradient_userData *grad_data, int index)
+{
+	Mesh *me = grad_data->me;
+	DMGradient_vertStore *vs = &grad_data->vert_cache->elem[index];
+	float alpha;
+
+	if (grad_data->type == WPAINT_GRADIENT_TYPE_LINEAR) {
+		alpha = line_point_factor_v2(vs->sco, grad_data->sco_start, grad_data->sco_end);
+	}
+	else {
+		BLI_assert(grad_data->type == WPAINT_GRADIENT_TYPE_RADIAL);
+		alpha = len_v2v2(grad_data->sco_start, vs->sco) * grad_data->sco_line_div;
+	}
+	/* no need to clamp 'alpha' yet */
+
+	/* adjust weight */
+	alpha = BKE_brush_curve_strength_clamped(grad_data->brush, alpha, 1.0f);
+
+	if (alpha != 0.0f) {
+		MDeformVert *dv = &me->dvert[index];
+		MDeformWeight *dw = defvert_verify_index(dv, grad_data->def_nr);
+		// dw->weight = alpha; // testing
+		int tool = grad_data->brush->vertexpaint_tool;
+		float testw;
+
+		/* init if we just added */
+		testw = ED_wpaint_blend_tool(tool, vs->weight_orig, grad_data->weightpaint, alpha * grad_data->brush->alpha);
+		CLAMP(testw, 0.0f, 1.0f);
+		dw->weight = testw;
+	}
+	else {
+		MDeformVert *dv = &me->dvert[index];
+		if (vs->flag & VGRAD_STORE_DW_EXIST) {
+			/* normally we NULL check, but in this case we know it exists */
+			MDeformWeight *dw = defvert_find_index(dv, grad_data->def_nr);
+			dw->weight = vs->weight_orig;
+		}
+		else {
+			/* wasn't originally existing, remove */
+			MDeformWeight *dw = defvert_find_index(dv, grad_data->def_nr);
+			if (dw) {
+				defvert_remove_group(dv, dw);
+			}
+		}
+	}
+}
+
+static void gradientVertUpdate__mapFunc(
+        void *userData, int index, const float UNUSED(co[3]),
+        const float UNUSED(no_f[3]), const short UNUSED(no_s[3]))
+{
+	DMGradient_userData *grad_data = userData;
+	Mesh *me = grad_data->me;
+	if ((grad_data->use_select == false) || (me->mvert[index].flag & SELECT)) {
+		DMGradient_vertStore *vs = &grad_data->vert_cache->elem[index];
+		if (vs->sco[0] != FLT_MAX) {
+			gradientVert_update(grad_data, index);
+		}
+	}
+}
+
+static void gradientVertInit__mapFunc(
+        void *userData, int index, const float co[3],
+        const float UNUSED(no_f[3]), const short UNUSED(no_s[3]))
+{
+	DMGradient_userData *grad_data = userData;
+	Mesh *me = grad_data->me;
+
+	if ((grad_data->use_select == false) || (me->mvert[index].flag & SELECT)) {
+		/* run first pass only,
+		 * the screen coords of the verts need to be cached because
+		 * updating the mesh may move them about (entering feedback loop) */
+
+		if (BLI_BITMAP_TEST(grad_data->vert_visit, index) == 0) {
+			DMGradient_vertStore *vs = &grad_data->vert_cache->elem[index];
+			if (ED_view3d_project_float_object(grad_data->ar,
+			                                   co, vs->sco,
+			                                   V3D_PROJ_TEST_CLIP_BB | V3D_PROJ_TEST_CLIP_NEAR) == V3D_PROJ_RET_OK)
+			{
+				/* ok */
+				MDeformVert *dv = &me->dvert[index];
+				const MDeformWeight *dw;
+				dw = defvert_find_index(dv, grad_data->def_nr);
+				if (dw) {
+					vs->weight_orig = dw->weight;
+					vs->flag = VGRAD_STORE_DW_EXIST;
+				}
+				else {
+					vs->weight_orig = 0.0f;
+					vs->flag = VGRAD_STORE_NOP;
+				}
+
+				BLI_BITMAP_ENABLE(grad_data->vert_visit, index);
+
+				gradientVert_update(grad_data, index);
+			}
+			else {
+				/* no go */
+				copy_v2_fl(vs->sco, FLT_MAX);
+			}
+		}
+	}
+}
+
+static int paint_weight_gradient_modal(bContext *C, wmOperator *op, const wmEvent *event)
+{
+	int ret = WM_gesture_straightline_modal(C, op, event);
+	wmGesture *gesture = op->customdata;
+	DMGradient_vertStoreBase *vert_cache = gesture->userdata;
+	bool do_gesture_free = false;
+
+	if (ret & OPERATOR_RUNNING_MODAL) {
+		if (event->type == LEFTMOUSE && event->val == KM_RELEASE) {  /* XXX, hardcoded */
+			/* generally crap! redo! */
+			do_gesture_free = true;
+			ret &= ~OPERATOR_RUNNING_MODAL;
+			ret |= OPERATOR_FINISHED;
+		}
+	}
+
+	if (ret & OPERATOR_CANCELLED) {
+		Object *ob = CTX_data_active_object(C);
+		Mesh *me = ob->data;
+		if (vert_cache->wpp.wpaint_prev) {
+			BKE_defvert_array_free_elems(me->dvert, me->totvert);
+			BKE_defvert_array_copy(me->dvert, vert_cache->wpp.wpaint_prev, me->totvert);
+			wpaint_prev_destroy(&vert_cache->wpp);
+		}
+
+		DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
+		WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
+	}
+	else if (ret & OPERATOR_FINISHED) {
+		wpaint_prev_destroy(&vert_cache->wpp);
+	}
+
+	if (do_gesture_free) {
+		WM_gesture_straightline_cancel(C, op);
+	}
+
+	return ret;
+}
+
+static int paint_weight_gradient_exec(bContext *C, wmOperator *op)
+{
+	wmGesture *gesture = op->customdata;
+	DMGradient_vertStoreBase *vert_cache;
+	struct ARegion *ar = CTX_wm_region(C);
+	Scene *scene = CTX_data_scene(C);
+	Object *ob = CTX_data_active_object(C);
+	Mesh *me = ob->data;
+	int x_start = RNA_int_get(op->ptr, "xstart");
+	int y_start = RNA_int_get(op->ptr, "ystart");
+	int x_end = RNA_int_get(op->ptr, "xend");
+	int y_end = RNA_int_get(op->ptr, "yend");
+	float sco_start[2] = {x_start, y_start};
+	float sco_end[2] = {x_end, y_end};
+	const bool is_interactive = (gesture != NULL);
+	DerivedMesh *dm = mesh_get_derived_final(scene, ob, scene->customdata_mask);
+
+	DMGradient_userData data = {NULL};
+
+	if (is_interactive) {
+		if (gesture->userdata == NULL) {
+			gesture->userdata = MEM_mallocN(
+			        sizeof(DMGradient_vertStoreBase) +
+			        (sizeof(DMGradient_vertStore) * me->totvert),
+			        __func__);
+			data.is_init = true;
+
+			wpaint_prev_create(&((DMGradient_vertStoreBase *)gesture->userdata)->wpp, me->dvert, me->totvert);
+
+			/* on init only, convert face -> vert sel  */
+			if (me->editflag & ME_EDIT_PAINT_FACE_SEL) {
+				BKE_mesh_flush_select_from_polys(me);
+			}
+		}
+
+		vert_cache = gesture->userdata;
+	}
+	else {
+		if (ED_wpaint_ensure_data(C, op->reports, 0, NULL) == false) {
+			return OPERATOR_CANCELLED;
+		}
+
+		data.is_init = true;
+		vert_cache = MEM_mallocN(
+		        sizeof(DMGradient_vertStoreBase) +
+		        (sizeof(DMGradient_vertStore) * me->totvert),
+		        __func__);
+	}
+
+	data.ar = ar;
+	data.scene = scene;
+	data.me = ob->data;
+	data.sco_start = sco_start;
+	data.sco_end   = sco_end;
+	data.sco_line_div = 1.0f / len_v2v2(sco_start, sco_end);
+	data.def_nr = ob->actdef - 1;
+	data.use_select = (me->editflag & (ME_EDIT_PAINT_FACE_SEL | ME_EDIT_PAINT_VERT_SEL));
+	data.vert_cache = vert_cache;
+	data.vert_visit = NULL;
+	data.type = RNA_enum_get(op->ptr, "type");
+
+	{
+		ToolSettings *ts = CTX_data_tool_settings(C);
+		VPaint *wp = ts->wpaint;
+		struct Brush *brush = BKE_paint_brush(&wp->paint);
+
+		curvemapping_initialize(brush->curve);
+
+		data.brush = brush;
+		data.weightpaint = BKE_brush_weight_get(scene, brush);
+	}
+
+	ED_view3d_init_mats_rv3d(ob, ar->regiondata);
+
+	if (data.is_init) {
+		data.vert_visit = BLI_BITMAP_NEW(me->totvert, __func__);
+
+		dm->foreachMappedVert(dm, gradientVertInit__mapFunc, &data, DM_FOREACH_NOP);
+
+		MEM_freeN(data.vert_visit);
+		data.vert_visit = NULL;
+	}
+	else {
+		dm->foreachMappedVert(dm, gradientVertUpdate__mapFunc, &data, DM_FOREACH_NOP);
+	}
+
+	DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
+	WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, ob);
+
+	if (is_interactive == false) {
+		MEM_freeN(vert_cache);
+	}
+
+	return OPERATOR_FINISHED;
+}
+
+static int paint_weight_gradient_invoke(bContext *C, wmOperator *op, const wmEvent *event)
+{
+	int ret;
+
+	if (ED_wpaint_ensure_data(C, op->reports, 0, NULL) == false) {
+		return OPERATOR_CANCELLED;
+	}
+
+	ret = WM_gesture_straightline_invoke(C, op, event);
+	if (ret & OPERATOR_RUNNING_MODAL) {
+		struct ARegion *ar = CTX_wm_region(C);
+		if (ar->regiontype == RGN_TYPE_WINDOW) {
+			/* TODO, hardcoded, extend WM_gesture_straightline_ */
+			if (event->type == LEFTMOUSE && event->val == KM_PRESS) {
+				wmGesture *gesture = op->customdata;
+				gesture->mode = 1;
+			}
+		}
+	}
+	return ret;
+}
+
+void PAINT_OT_weight_gradient(wmOperatorType *ot)
+{
+	/* defined in DNA_space_types.h */
+	static EnumPropertyItem gradient_types[] = {
+		{WPAINT_GRADIENT_TYPE_LINEAR, "LINEAR", 0, "Linear", ""},
+		{WPAINT_GRADIENT_TYPE_RADIAL, "RADIAL", 0, "Radial", ""},
+		{0, NULL, 0, NULL, NULL}
+	};
+
+	PropertyRNA *prop;
+
+	/* identifiers */
+	ot->name = "Weight Gradient";
+	ot->idname = "PAINT_OT_weight_gradient";
+	ot->description = "Draw a line to apply a weight gradient to selected vertices";
+
+	/* api callbacks */
+	ot->invoke = paint_weight_gradient_invoke;
+	ot->modal = paint_weight_gradient_modal;
+	ot->exec = paint_weight_gradient_exec;
+	ot->poll = weight_paint_poll;
+	ot->cancel = WM_gesture_straightline_cancel;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	prop = RNA_def_enum(ot->srna, "type", gradient_types, 0, "Type", "");
+	RNA_def_property_flag(prop, PROP_SKIP_SAVE);
+
+	WM_operator_properties_gesture_straightline(ot, CURSOR_EDIT);
+}
+
+/** \} */
diff --git a/source/blender/editors/sculpt_paint/paint_vertex_weight_utils.c b/source/blender/editors/sculpt_paint/paint_vertex_weight_utils.c
new file mode 100644
index 00000000000..c05b0ba89cf
--- /dev/null
+++ b/source/blender/editors/sculpt_paint/paint_vertex_weight_utils.c
@@ -0,0 +1,212 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/editors/sculpt_paint/paint_vertex_weight_utils.c
+ *  \ingroup edsculpt
+ *
+ * Intended for use by `paint_vertex.c` & `paint_vertex_weight_ops.c`.
+ */
+
+#include "MEM_guardedalloc.h"
+
+#include "BLI_listbase.h"
+#include "BLI_math.h"
+#include "BLI_string_utils.h"
+
+#include "DNA_armature_types.h"
+#include "DNA_mesh_types.h"
+#include "DNA_scene_types.h"
+#include "DNA_brush_types.h"
+#include "DNA_object_types.h"
+
+#include "BKE_action.h"
+#include "BKE_context.h"
+#include "BKE_deform.h"
+#include "BKE_mesh.h"
+#include "BKE_modifier.h"
+#include "BKE_object_deform.h"
+#include "BKE_report.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "paint_intern.h"  /* own include */
+
+/* -------------------------------------------------------------------- */
+/** \name Weight Paint Sanity Checks
+ * \{ */
+
+/* ensure we have data on wpaint start, add if needed */
+bool ED_wpaint_ensure_data(
+        bContext *C, struct ReportList *reports,
+        enum eWPaintFlag flag, struct WPaintVGroupIndex *vgroup_index)
+{
+	Scene *scene = CTX_data_scene(C);
+	Object *ob = CTX_data_active_object(C);
+	Mesh *me = BKE_mesh_from_object(ob);
+
+	if (vgroup_index) {
+		vgroup_index->active = -1;
+		vgroup_index->mirror = -1;
+	}
+
+	if (scene->obedit) {
+		return false;
+	}
+
+	if (me == NULL || me->totpoly == 0) {
+		return false;
+	}
+
+	/* if nothing was added yet, we make dverts and a vertex deform group */
+	if (!me->dvert) {
+		BKE_object_defgroup_data_create(&me->id);
+		WM_event_add_notifier(C, NC_GEOM | ND_DATA, me);
+	}
+
+	/* this happens on a Bone select, when no vgroup existed yet */
+	if (ob->actdef <= 0) {
+		Object *modob;
+		if ((modob = modifiers_isDeformedByArmature(ob))) {
+			Bone *actbone = ((bArmature *)modob->data)->act_bone;
+			if (actbone) {
+				bPoseChannel *pchan = BKE_pose_channel_find_name(modob->pose, actbone->name);
+
+				if (pchan) {
+					bDeformGroup *dg = defgroup_find_name(ob, pchan->name);
+					if (dg == NULL) {
+						dg = BKE_object_defgroup_add_name(ob, pchan->name);  /* sets actdef */
+					}
+					else {
+						int actdef = 1 + BLI_findindex(&ob->defbase, dg);
+						BLI_assert(actdef >= 0);
+						ob->actdef = actdef;
+					}
+				}
+			}
+		}
+	}
+	if (BLI_listbase_is_empty(&ob->defbase)) {
+		BKE_object_defgroup_add(ob);
+	}
+
+	/* ensure we don't try paint onto an invalid group */
+	if (ob->actdef <= 0) {
+		BKE_report(reports, RPT_WARNING, "No active vertex group for painting, aborting");
+		return false;
+	}
+
+	if (vgroup_index) {
+		vgroup_index->active = ob->actdef - 1;
+	}
+
+	if (flag & WPAINT_ENSURE_MIRROR) {
+		if (me->editflag & ME_EDIT_MIRROR_X) {
+			int mirror = ED_wpaint_mirror_vgroup_ensure(ob, ob->actdef - 1);
+			if (vgroup_index) {
+				vgroup_index->mirror = mirror;
+			}
+		}
+	}
+
+	return true;
+}
+/** \} */
+
+/* mirror_vgroup is set to -1 when invalid */
+int ED_wpaint_mirror_vgroup_ensure(Object *ob, const int vgroup_active)
+{
+	bDeformGroup *defgroup = BLI_findlink(&ob->defbase, vgroup_active);
+
+	if (defgroup) {
+		int mirrdef;
+		char name_flip[MAXBONENAME];
+
+		BLI_string_flip_side_name(name_flip, defgroup->name, false, sizeof(name_flip));
+		mirrdef = defgroup_name_index(ob, name_flip);
+		if (mirrdef == -1) {
+			if (BKE_defgroup_new(ob, name_flip)) {
+				mirrdef = BLI_listbase_count(&ob->defbase) - 1;
+			}
+		}
+
+		/* curdef should never be NULL unless this is
+		 * a  lamp and BKE_object_defgroup_add_name fails */
+		return mirrdef;
+	}
+
+	return -1;
+}
+
+/* -------------------------------------------------------------------- */
+/** \name Weight Blending Modes
+ * \{ */
+
+BLI_INLINE float wval_blend(const float weight, const float paintval, const float alpha)
+{
+	const float talpha = min_ff(alpha, 1.0f);  /* blending with values over 1 doesn't make sense */
+	return (paintval * talpha) + (weight * (1.0f - talpha));
+}
+BLI_INLINE float wval_add(const float weight, const float paintval, const float alpha)
+{
+	return weight + (paintval * alpha);
+}
+BLI_INLINE float wval_sub(const float weight, const float paintval, const float alpha)
+{
+	return weight - (paintval * alpha);
+}
+BLI_INLINE float wval_mul(const float weight, const float paintval, const float alpha)
+{   /* first mul, then blend the fac */
+	return ((1.0f - alpha) + (alpha * paintval)) * weight;
+}
+BLI_INLINE float wval_lighten(const float weight, const float paintval, const float alpha)
+{
+	return (weight < paintval) ? wval_blend(weight, paintval, alpha) : weight;
+}
+BLI_INLINE float wval_darken(const float weight, const float paintval, const float alpha)
+{
+	return (weight > paintval) ? wval_blend(weight, paintval, alpha) : weight;
+}
+
+/* vpaint has 'vpaint_blend_tool' */
+/* result is not clamped from [0-1] */
+float ED_wpaint_blend_tool(
+        const int tool,
+        /* dw->weight */
+        const float weight,
+        const float paintval, const float alpha)
+{
+	switch (tool) {
+		case PAINT_BLEND_MIX:
+		case PAINT_BLEND_AVERAGE:
+		case PAINT_BLEND_SMEAR:
+		case PAINT_BLEND_BLUR:     return wval_blend(weight, paintval, alpha);
+		case PAINT_BLEND_ADD:      return wval_add(weight, paintval, alpha);
+		case PAINT_BLEND_SUB:      return wval_sub(weight, paintval, alpha);
+		case PAINT_BLEND_MUL:      return wval_mul(weight, paintval, alpha);
+		case PAINT_BLEND_LIGHTEN:  return wval_lighten(weight, paintval, alpha);
+		case PAINT_BLEND_DARKEN:   return wval_darken(weight, paintval, alpha);
+		default:
+			BLI_assert(0);
+			return 0.0f;
+	}
+}
+
+/** \} */
\ No newline at end of file
diff --git a/source/blender/editors/sculpt_paint/sculpt.c b/source/blender/editors/sculpt_paint/sculpt.c
index 44cc2720a32..bef682868c3 100644
--- a/source/blender/editors/sculpt_paint/sculpt.c
+++ b/source/blender/editors/sculpt_paint/sculpt.c
@@ -39,7 +39,6 @@
 #include "BLI_blenlib.h"
 #include "BLI_dial.h"
 #include "BLI_task.h"
-#include "BLI_threads.h"
 #include "BLI_utildefines.h"
 #include "BLI_ghash.h"
 
@@ -165,111 +164,12 @@ static bool sculpt_brush_needs_rake_rotation(const Brush *brush)
 	return SCULPT_TOOL_HAS_RAKE(brush->sculpt_tool) && (brush->rake_factor != 0.0f);
 }
 
-/* Factor of brush to have rake point following behind
- * (could be configurable but this is reasonable default). */
-#define SCULPT_RAKE_BRUSH_FACTOR 0.25f
-
-struct SculptRakeData {
-	float follow_dist;
-	float follow_co[3];
-};
-
 typedef enum StrokeFlags {
 	CLIP_X = 1,
 	CLIP_Y = 2,
 	CLIP_Z = 4
 } StrokeFlags;
 
-/* Cache stroke properties. Used because
- * RNA property lookup isn't particularly fast.
- *
- * For descriptions of these settings, check the operator properties.
- */
-typedef struct StrokeCache {
-	/* Invariants */
-	float initial_radius;
-	float scale[3];
-	int flag;
-	float clip_tolerance[3];
-	float initial_mouse[2];
-
-	/* Variants */
-	float radius;
-	float radius_squared;
-	float true_location[3];
-	float location[3];
-
-	bool pen_flip;
-	bool invert;
-	float pressure;
-	float mouse[2];
-	float bstrength;
-	float normal_weight;  /* from brush (with optional override) */
-
-	/* The rest is temporary storage that isn't saved as a property */
-
-	bool first_time; /* Beginning of stroke may do some things special */
-
-	/* from ED_view3d_ob_project_mat_get() */
-	float projection_mat[4][4];
-
-	/* Clean this up! */
-	ViewContext *vc;
-	Brush *brush;
-
-	float special_rotation;
-	float grab_delta[3], grab_delta_symmetry[3];
-	float old_grab_location[3], orig_grab_location[3];
-
-	/* screen-space rotation defined by mouse motion */
-	float   rake_rotation[4], rake_rotation_symmetry[4];
-	bool is_rake_rotation_valid;
-	struct SculptRakeData rake_data;
-
-	int symmetry; /* Symmetry index between 0 and 7 bit combo 0 is Brush only;
-	               * 1 is X mirror; 2 is Y mirror; 3 is XY; 4 is Z; 5 is XZ; 6 is YZ; 7 is XYZ */
-	int mirror_symmetry_pass; /* the symmetry pass we are currently on between 0 and 7*/
-	float true_view_normal[3];
-	float view_normal[3];
-
-	/* sculpt_normal gets calculated by calc_sculpt_normal(), then the
-	 * sculpt_normal_symm gets updated quickly with the usual symmetry
-	 * transforms */
-	float sculpt_normal[3];
-	float sculpt_normal_symm[3];
-
-	/* Used for area texture mode, local_mat gets calculated by
-	 * calc_brush_local_mat() and used in tex_strength(). */
-	float brush_local_mat[4][4];
-	
-	float plane_offset[3]; /* used to shift the plane around when doing tiled strokes */
-	int tile_pass;
-
-	float last_center[3];
-	int radial_symmetry_pass;
-	float symm_rot_mat[4][4];
-	float symm_rot_mat_inv[4][4];
-	bool original;
-	float anchored_location[3];
-
-	float vertex_rotation; /* amount to rotate the vertices when using rotate brush */
-	Dial *dial;
-	
-	char saved_active_brush_name[MAX_ID_NAME];
-	char saved_mask_brush_tool;
-	int saved_smooth_size; /* smooth tool copies the size of the current tool */
-	bool alt_smooth;
-
-	float plane_trim_squared;
-
-	bool supports_gravity;
-	float true_gravity_direction[3];
-	float gravity_direction[3];
-
-	rcti previous_r; /* previous redraw rectangle */
-	rcti current_r; /* current redraw rectangle */
-} StrokeCache;
-
 /************** Access to original unmodified vertex data *************/
 
 typedef struct {
@@ -476,41 +376,6 @@ static bool sculpt_stroke_is_dynamic_topology(
 
 /*** paint mesh ***/
 
-/* Single struct used by all BLI_task threaded callbacks, let's avoid adding 10's of those... */
-typedef struct SculptThreadedTaskData {
-	Sculpt *sd;
-	Object *ob;
-	Brush *brush;
-	PBVHNode **nodes;
-	int totnode;
-
-	/* Data specific to some callbacks. */
-	/* Note: even if only one or two of those are used at a time, keeping them separated, names help figuring out
-	 *       what it is, and memory overhead is ridiculous anyway... */
-	float flippedbstrength;
-	float angle;
-	float strength;
-	bool smooth_mask;
-	bool has_bm_orco;
-
-	SculptProjectVector *spvc;
-	float *offset;
-	float *grab_delta;
-	float *cono;
-	float *area_no;
-	float *area_no_sp;
-	float *area_co;
-	float (*mat)[4];
-	float (*vertCos)[3];
-
-	/* 0=towards view, 1=flipped */
-	float (*area_cos)[3];
-	float (*area_nos)[3];
-	int *count;
-
-	ThreadMutex mutex;
-} SculptThreadedTaskData;
-
 static void paint_mesh_restore_co_task_cb(void *userdata, const int n)
 {
 	SculptThreadedTaskData *data = userdata;
@@ -600,7 +465,7 @@ static void sculpt_extend_redraw_rect_previous(Object *ob, rcti *rect)
 }
 
 /* Get a screen-space rectangle of the modified area */
-static bool sculpt_get_redraw_rect(ARegion *ar, RegionView3D *rv3d,
+bool sculpt_get_redraw_rect(ARegion *ar, RegionView3D *rv3d,
                                    Object *ob, rcti *rect)
 {
 	PBVH *pbvh = ob->sculpt->pbvh;
@@ -650,17 +515,7 @@ void ED_sculpt_redraw_planes_get(float planes[4][4], ARegion *ar,
 
 /************************ Brush Testing *******************/
 
-typedef struct SculptBrushTest {
-	float radius_squared;
-	float location[3];
-	float dist;
-	int mirror_symmetry_pass;
-
-	/* View3d clipping - only set rv3d for clipping */
-	RegionView3D *clip_rv3d;
-} SculptBrushTest;
-
-static void sculpt_brush_test_init(SculptSession *ss, SculptBrushTest *test)
+void sculpt_brush_test_init(SculptSession *ss, SculptBrushTest *test)
 {
 	RegionView3D *rv3d = ss->cache->vc->rv3d;
 
@@ -689,7 +544,7 @@ BLI_INLINE bool sculpt_brush_test_clipping(const SculptBrushTest *test, const fl
 	return ED_view3d_clipping_test(rv3d, symm_co, true);
 }
 
-static bool sculpt_brush_test(SculptBrushTest *test, const float co[3])
+bool sculpt_brush_test(SculptBrushTest *test, const float co[3])
 {
 	float distsq = len_squared_v3v3(co, test->location);
 
@@ -705,7 +560,7 @@ static bool sculpt_brush_test(SculptBrushTest *test, const float co[3])
 	}
 }
 
-static bool sculpt_brush_test_sq(SculptBrushTest *test, const float co[3])
+bool sculpt_brush_test_sq(SculptBrushTest *test, const float co[3])
 {
 	float distsq = len_squared_v3v3(co, test->location);
 
@@ -721,7 +576,7 @@ static bool sculpt_brush_test_sq(SculptBrushTest *test, const float co[3])
 	}
 }
 
-static bool sculpt_brush_test_fast(const SculptBrushTest *test, const float co[3])
+bool sculpt_brush_test_fast(const SculptBrushTest *test, const float co[3])
 {
 	if (sculpt_brush_test_clipping(test, co)) {
 		return 0;
@@ -729,7 +584,7 @@ static bool sculpt_brush_test_fast(const SculptBrushTest *test, const float co[3
 	return len_squared_v3v3(co, test->location) <= test->radius_squared;
 }
 
-static bool sculpt_brush_test_cube(SculptBrushTest *test, const float co[3], float local[4][4])
+bool sculpt_brush_test_cube(SculptBrushTest *test, const float co[3], float local[4][4])
 {
 	float side = M_SQRT1_2;
 	float local_co[3];
@@ -897,17 +752,19 @@ static void calc_area_normal_and_center_task_cb(void *userdata, const int n)
 
 	PBVHVertexIter vd;
 	SculptBrushTest test;
-	SculptUndoNode *unode;
+	SculptUndoNode *unode = NULL;
 
 	float private_co[2][3] = {{0.0f}};
 	float private_no[2][3] = {{0.0f}};
 	int   private_count[2] = {0};
-	bool use_original;
+	bool use_original = false;
 
-	unode = sculpt_undo_push_node(data->ob, data->nodes[n], SCULPT_UNDO_COORDS);
+	if (ss->cache->original) {
+		unode = sculpt_undo_push_node(data->ob, data->nodes[n], SCULPT_UNDO_COORDS);
+		use_original = (unode->co || unode->bm_entry);
+	}
 	sculpt_brush_test_init(ss, &test);
 
-	use_original = (ss->cache->original && (unode->co || unode->bm_entry));
 
 	/* when the mesh is edited we can't rely on original coords
 	 * (original mesh may not even have verts in brush radius) */
@@ -1029,8 +886,9 @@ static void calc_area_center(
 
 	int count[2] = {0};
 
+	/* Intentionally set 'sd' to NULL since we share logic with vertex paint. */
 	SculptThreadedTaskData data = {
-		.sd = sd, .ob = ob, .nodes = nodes, .totnode = totnode,
+		.sd = NULL, .ob = ob, .nodes = nodes, .totnode = totnode,
 		.has_bm_orco = has_bm_orco, .area_cos = area_cos, .area_nos = NULL, .count = count,
 	};
 	BLI_mutex_init(&data.mutex);
@@ -1053,42 +911,53 @@ static void calc_area_center(
 	}
 }
 
-
 static void calc_area_normal(
         Sculpt *sd, Object *ob,
         PBVHNode **nodes, int totnode,
         float r_area_no[3])
 {
 	const Brush *brush = BKE_paint_brush(&sd->paint);
+	bool use_threading = (sd->flags & SCULPT_USE_OPENMP) && totnode > SCULPT_THREADED_LIMIT;
+	sculpt_pbvh_calc_area_normal(brush, ob, nodes, totnode, use_threading, r_area_no);
+}
+
+/* expose 'calc_area_normal' externally. */
+void sculpt_pbvh_calc_area_normal(
+        const Brush *brush, Object *ob,
+        PBVHNode **nodes, int totnode,
+        bool use_threading,
+        float r_area_no[3])
+{
 	SculptSession *ss = ob->sculpt;
 	const bool has_bm_orco = ss->bm && sculpt_stroke_is_dynamic_topology(ss, brush);
-	int n;
 
 	/* 0=towards view, 1=flipped */
 	float area_nos[2][3] = {{0.0f}};
 
 	int count[2] = {0};
 
+	/* Intentionally set 'sd' to NULL since this is used for vertex paint too. */
 	SculptThreadedTaskData data = {
-		.sd = sd, .ob = ob, .nodes = nodes, .totnode = totnode,
+		.sd = NULL, .ob = ob, .nodes = nodes, .totnode = totnode,
 		.has_bm_orco = has_bm_orco, .area_cos = NULL, .area_nos = area_nos, .count = count,
 	};
 	BLI_mutex_init(&data.mutex);
 
 	BLI_task_parallel_range(
 	            0, totnode, &data, calc_area_normal_and_center_task_cb,
-	            ((sd->flags & SCULPT_USE_OPENMP) && totnode > SCULPT_THREADED_LIMIT));
+	            use_threading);
 
 	BLI_mutex_end(&data.mutex);
 
 	/* for area normal */
-	for (n = 0; n < ARRAY_SIZE(area_nos); n++) {
-		if (normalize_v3_v3(r_area_no, area_nos[n]) != 0.0f) {
+	for (int i = 0; i < ARRAY_SIZE(area_nos); i++) {
+		if (normalize_v3_v3(r_area_no, area_nos[i]) != 0.0f) {
 			break;
 		}
 	}
 }
 
+
 /* this calculates flatten center and area normal together,
  * amortizing the memory bandwidth and loop overhead to calculate both at the same time */
 static void calc_area_normal_and_center(
@@ -1107,8 +976,9 @@ static void calc_area_normal_and_center(
 
 	int count[2] = {0};
 
+	/* Intentionally set 'sd' to NULL since this is used for vertex paint too. */
 	SculptThreadedTaskData data = {
-		.sd = sd, .ob = ob, .nodes = nodes, .totnode = totnode,
+		.sd = NULL, .ob = ob, .nodes = nodes, .totnode = totnode,
 		.has_bm_orco = has_bm_orco, .area_cos = area_cos, .area_nos = area_nos, .count = count,
 	};
 	BLI_mutex_init(&data.mutex);
@@ -1237,13 +1107,13 @@ static float brush_strength(
 }
 
 /* Return a multiplier for brush strength on a particular vertex. */
-static float tex_strength(SculptSession *ss, Brush *br,
-                          const float brush_point[3],
-                          const float len,
-                          const short vno[3],
-                          const float fno[3],
-                          const float mask,
-                          const int thread_id)
+float tex_strength(SculptSession *ss, Brush *br,
+                   const float brush_point[3],
+                   const float len,
+                   const short vno[3],
+                   const float fno[3],
+                   const float mask,
+                   const int thread_id)
 {
 	StrokeCache *cache = ss->cache;
 	const Scene *scene = cache->vc->scene;
@@ -1316,15 +1186,8 @@ static float tex_strength(SculptSession *ss, Brush *br,
 	return avg;
 }
 
-typedef struct {
-	Sculpt *sd;
-	SculptSession *ss;
-	float radius_squared;
-	bool original;
-} SculptSearchSphereData;
-
 /* Test AABB against sphere */
-static bool sculpt_search_sphere_cb(PBVHNode *node, void *data_v)
+bool sculpt_search_sphere_cb(PBVHNode *node, void *data_v)
 {
 	SculptSearchSphereData *data = data_v;
 	float *center = data->ss->cache->location, nearest[3];
@@ -1632,6 +1495,22 @@ typedef struct SculptDoBrushSmoothGridDataChunk {
 	size_t tmpgrid_size;
 } SculptDoBrushSmoothGridDataChunk;
 
+typedef struct {
+	SculptSession *ss;
+	const float *ray_start, *ray_normal;
+	bool hit;
+	float dist;
+	bool original;
+	PBVHNode* node;
+} SculptRaycastData;
+
+typedef struct {
+	const float *ray_start, *ray_normal;
+	bool hit;
+	float dist;
+	float detail;
+} SculptDetailRaycastData;
+
 static void do_smooth_brush_mesh_task_cb_ex(
         void *userdata, void *UNUSED(userdata_chunk), const int n, const int thread_id)
 {
@@ -3688,12 +3567,10 @@ static void sculpt_flush_stroke_deform(Sculpt *sd, Object *ob)
 
 /* Flip all the editdata across the axis/axes specified by symm. Used to
  * calculate multiple modifications to the mesh when symmetry is enabled. */
-static void calc_brushdata_symm(Sculpt *sd, StrokeCache *cache, const char symm,
-                                const char axis, const float angle,
-                                const float UNUSED(feather))
+void sculpt_cache_calc_brushdata_symm(
+        StrokeCache *cache, const char symm,
+        const char axis, const float angle)
 {
-	(void)sd; /* unused */
-
 	flip_v3_v3(cache->location, cache->true_location, symm);
 	flip_v3_v3(cache->grab_delta_symmetry, cache->grab_delta, symm);
 	flip_v3_v3(cache->view_normal, cache->true_view_normal, symm);
@@ -3791,7 +3668,7 @@ static void do_tiled(Sculpt *sd, Object *ob, Brush *brush, UnifiedPaintSettings
 static void do_radial_symmetry(Sculpt *sd, Object *ob, Brush *brush, UnifiedPaintSettings *ups,
                                BrushActionFunc action,
                                const char symm, const int axis,
-                               const float feather)
+                               const float UNUSED(feather))
 {
 	SculptSession *ss = ob->sculpt;
 	int i;
@@ -3799,7 +3676,7 @@ static void do_radial_symmetry(Sculpt *sd, Object *ob, Brush *brush, UnifiedPain
 	for (i = 1; i < sd->radial_symm[axis - 'X']; ++i) {
 		const float angle = 2 * M_PI * i / sd->radial_symm[axis - 'X'];
 		ss->cache->radial_symmetry_pass = i;
-		calc_brushdata_symm(sd, ss->cache, symm, axis, angle, feather);
+		sculpt_cache_calc_brushdata_symm(ss->cache, symm, axis, angle);
 		do_tiled(sd, ob, brush, ups, action);
 	}
 }
@@ -3817,8 +3694,9 @@ static void sculpt_fix_noise_tear(Sculpt *sd, Object *ob)
 		multires_stitch_grids(ob);
 }
 
-static void do_symmetrical_brush_actions(Sculpt *sd, Object *ob,
-                                         BrushActionFunc action, UnifiedPaintSettings *ups)
+static void do_symmetrical_brush_actions(
+        Sculpt *sd, Object *ob,
+        BrushActionFunc action, UnifiedPaintSettings *ups)
 {
 	Brush *brush = BKE_paint_brush(&sd->paint);
 	SculptSession *ss = ob->sculpt;
@@ -3837,7 +3715,7 @@ static void do_symmetrical_brush_actions(Sculpt *sd, Object *ob,
 			cache->mirror_symmetry_pass = i;
 			cache->radial_symmetry_pass = 0;
 
-			calc_brushdata_symm(sd, cache, i, 0, 0, feather);
+			sculpt_cache_calc_brushdata_symm(cache, i, 0, 0);
 			do_tiled(sd, ob, brush, ups, action);
 
 			do_radial_symmetry(sd, ob, brush, ups, action, i, 'X', feather);
@@ -3948,7 +3826,7 @@ static const char *sculpt_tool_name(Sculpt *sd)
  * Operator for applying a stroke (various attributes including mouse path)
  * using the current brush. */
 
-static void sculpt_cache_free(StrokeCache *cache)
+void sculpt_cache_free(StrokeCache *cache)
 {
 	if (cache->dial)
 		MEM_freeN(cache->dial);
@@ -4398,21 +4276,6 @@ static void sculpt_stroke_modifiers_check(const bContext *C, Object *ob)
 	}
 }
 
-typedef struct {
-	SculptSession *ss;
-	const float *ray_start, *ray_normal;
-	bool hit;
-	float dist;
-	bool original;
-} SculptRaycastData;
-
-typedef struct {
-	const float *ray_start, *ray_normal;
-	bool hit;
-	float dist;
-	float detail;
-} SculptDetailRaycastData;
-
 static void sculpt_raycast_cb(PBVHNode *node, void *data_v, float *tmin)
 {
 	if (BKE_pbvh_node_get_tmin(node) < *tmin) {
@@ -4437,6 +4300,9 @@ static void sculpt_raycast_cb(PBVHNode *node, void *data_v, float *tmin)
 		{
 			srd->hit = 1;
 			*tmin = srd->dist;
+
+			//for vwpaint testing
+			srd->node = node;
 		}
 	}
 }
@@ -4521,12 +4387,17 @@ bool sculpt_stroke_get_location(bContext *C, float out[3], const float mouse[2])
 	srd.dist = dist;
 
 	BKE_pbvh_raycast(ss->pbvh, sculpt_raycast_cb, &srd,
-	                 ray_start, ray_normal, srd.original);
+			 ray_start, ray_normal, srd.original);
 
 	copy_v3_v3(out, ray_normal);
 	mul_v3_fl(out, srd.dist);
 	add_v3_v3(out, ray_start);
 
+	//used in vwpaint
+	if (cache && srd.hit){
+		copy_v3_v3(cache->true_location, out);
+	}
+
 	return srd.hit;
 }
 
@@ -4656,8 +4527,11 @@ static bool sculpt_stroke_test_start(bContext *C, struct wmOperator *op,
                                     const float mouse[2])
 {
 	/* Don't start the stroke until mouse goes over the mesh.
-	 * note: mouse will only be null when re-executing the saved stroke. */
-	if (!mouse || over_mesh(C, op, mouse[0], mouse[1])) {
+	 * note: mouse will only be null when re-executing the saved stroke.
+	 * We have exception for 'exec' strokes since they may not set 'mouse', only 'location', see: T52195. */
+	if (((op->flag & OP_IS_INVOKE) == 0) ||
+	    (mouse == NULL) || over_mesh(C, op, mouse[0], mouse[1]))
+	{
 		Object *ob = CTX_data_active_object(C);
 		SculptSession *ss = ob->sculpt;
 		Sculpt *sd = CTX_data_tool_settings(C)->sculpt;
@@ -5527,7 +5401,7 @@ static int sculpt_detail_flood_fill_exec(bContext *C, wmOperator *UNUSED(op))
 	Object *ob = CTX_data_active_object(C);
 	SculptSession *ss = ob->sculpt;
 	float size;
-	float bb_min[3], bb_max[3];
+	float bb_min[3], bb_max[3], center[3], dim[3];
 	int i, totnodes;
 	PBVHNode **nodes;
 
@@ -5539,11 +5413,12 @@ static int sculpt_detail_flood_fill_exec(bContext *C, wmOperator *UNUSED(op))
 	for (i = 0; i < totnodes; i++) {
 		BKE_pbvh_node_mark_topology_update(nodes[i]);
 	}
-	/* get the bounding box, store the size to bb_max and center (zero) to bb_min */
+	/* get the bounding box, it's center and size */
 	BKE_pbvh_bounding_box(ob->sculpt->pbvh, bb_min, bb_max);
-	sub_v3_v3(bb_max, bb_min);
-	zero_v3(bb_min);
-	size = max_fff(bb_max[0], bb_max[1], bb_max[2]);
+	add_v3_v3v3(center, bb_min, bb_max);
+	mul_v3_fl(center, 0.5f);
+	sub_v3_v3v3(dim, bb_max, bb_min);
+	size = max_fff(dim[0], dim[1], dim[2]);
 
 	/* update topology size */
 	BKE_pbvh_bmesh_detail_size_set(ss->pbvh, 1.0f / sd->constant_detail);
@@ -5553,7 +5428,7 @@ static int sculpt_detail_flood_fill_exec(bContext *C, wmOperator *UNUSED(op))
 
 	while (BKE_pbvh_bmesh_update_topology(
 	               ss->pbvh, PBVH_Collapse | PBVH_Subdivide,
-	               bb_min, NULL, size))
+	               center, NULL, size))
 	{
 		for (i = 0; i < totnodes; i++)
 			BKE_pbvh_node_mark_topology_update(nodes[i]);
diff --git a/source/blender/editors/sculpt_paint/sculpt_intern.h b/source/blender/editors/sculpt_paint/sculpt_intern.h
index 108fe3532e3..27d8fbaa340 100644
--- a/source/blender/editors/sculpt_paint/sculpt_intern.h
+++ b/source/blender/editors/sculpt_paint/sculpt_intern.h
@@ -38,12 +38,15 @@
 #include "DNA_key_types.h"
 
 #include "BLI_bitmap.h"
+#include "BLI_threads.h"
+
 #include "BKE_pbvh.h"
 
 struct bContext;
 struct KeyBlock;
 struct Object;
 struct SculptUndoNode;
+struct SculptOrigVertData;
 
 int sculpt_mode_poll(struct bContext *C);
 int sculpt_mode_poll_view3d(struct bContext *C);
@@ -52,12 +55,12 @@ int sculpt_poll(struct bContext *C);
 int sculpt_poll_view3d(struct bContext *C);
 
 /* Stroke */
-bool sculpt_stroke_get_location(bContext *C, float out[3], const float mouse[2]);
+bool sculpt_stroke_get_location(struct bContext *C, float out[3], const float mouse[2]);
 
 /* Dynamic topology */
 void sculpt_pbvh_clear(Object *ob);
 void sculpt_dyntopo_node_layers_add(struct SculptSession *ss);
-void sculpt_update_after_dynamic_topology_toggle(bContext *C);
+void sculpt_update_after_dynamic_topology_toggle(struct bContext *C);
 void sculpt_dynamic_topology_enable(struct bContext *C);
 void sculpt_dynamic_topology_disable(struct bContext *C,
                                      struct SculptUndoNode *unode);
@@ -115,6 +118,203 @@ typedef struct SculptUndoNode {
 	char shapeName[sizeof(((KeyBlock *)0))->name];
 } SculptUndoNode;
 
+/* Factor of brush to have rake point following behind
+* (could be configurable but this is reasonable default). */
+#define SCULPT_RAKE_BRUSH_FACTOR 0.25f
+
+struct SculptRakeData {
+	float follow_dist;
+	float follow_co[3];
+};
+
+/* Single struct used by all BLI_task threaded callbacks, let's avoid adding 10's of those... */
+typedef struct SculptThreadedTaskData {
+	struct bContext *C;
+	struct Sculpt *sd;
+	struct Object *ob;
+	struct Brush *brush;
+	struct PBVHNode **nodes;
+	int totnode;
+
+	struct VPaint *vp;
+	struct VPaintData *vpd;
+	struct WPaintData *wpd;
+	struct WeightPaintInfo *wpi;
+	unsigned int *lcol;
+	struct Mesh *me;
+	/* For passing generic params. */
+	void *custom_data;
+
+
+	/* Data specific to some callbacks. */
+	/* Note: even if only one or two of those are used at a time, keeping them separated, names help figuring out
+	*       what it is, and memory overhead is ridiculous anyway... */
+	float flippedbstrength;
+	float angle;
+	float strength;
+	bool smooth_mask;
+	bool has_bm_orco;
+
+	struct SculptProjectVector *spvc;
+	float *offset;
+	float *grab_delta;
+	float *cono;
+	float *area_no;
+	float *area_no_sp;
+	float *area_co;
+	float(*mat)[4];
+	float(*vertCos)[3];
+
+	/* 0=towards view, 1=flipped */
+	float(*area_cos)[3];
+	float(*area_nos)[3];
+	int *count;
+
+	ThreadMutex mutex;
+
+} SculptThreadedTaskData;
+
+/*************** Brush testing declarations ****************/
+typedef struct SculptBrushTest {
+	float radius_squared;
+	float location[3];
+	float dist;
+	int mirror_symmetry_pass;
+
+	/* View3d clipping - only set rv3d for clipping */
+	struct RegionView3D *clip_rv3d;
+} SculptBrushTest;
+
+typedef struct {
+	struct Sculpt *sd;
+	struct SculptSession *ss;
+	float radius_squared;
+	bool original;
+} SculptSearchSphereData;
+
+void sculpt_brush_test_init(struct SculptSession *ss, SculptBrushTest *test);
+bool sculpt_brush_test(SculptBrushTest *test, const float co[3]);
+bool sculpt_brush_test_sq(SculptBrushTest *test, const float co[3]);
+bool sculpt_brush_test_fast(const SculptBrushTest *test, const float co[3]);
+bool sculpt_brush_test_cube(SculptBrushTest *test, const float co[3], float local[4][4]);
+bool sculpt_search_sphere_cb(PBVHNode *node, void *data_v);
+float tex_strength(
+        struct SculptSession *ss, struct Brush *br,
+        const float point[3],
+        const float len,
+        const short vno[3],
+        const float fno[3],
+        const float mask,
+        const int thread_id);
+
+/* just for vertex paint. */
+void sculpt_pbvh_calc_area_normal(
+        const struct Brush *brush, Object *ob,
+        PBVHNode **nodes, int totnode,
+        bool use_threading,
+        float r_area_no[3]);
+
+/* Cache stroke properties. Used because
+* RNA property lookup isn't particularly fast.
+*
+* For descriptions of these settings, check the operator properties.
+*/
+
+typedef struct StrokeCache {
+	/* Invariants */
+	float initial_radius;
+	float scale[3];
+	int flag;
+	float clip_tolerance[3];
+	float initial_mouse[2];
+
+	/* Variants */
+	float radius;
+	float radius_squared;
+	float true_location[3];
+	float true_last_location[3];
+	float location[3];
+	float last_location[3];
+	bool is_last_valid;
+
+	bool pen_flip;
+	bool invert;
+	float pressure;
+	float mouse[2];
+	float bstrength;
+	float normal_weight;  /* from brush (with optional override) */
+
+	/* The rest is temporary storage that isn't saved as a property */
+
+	bool first_time; /* Beginning of stroke may do some things special */
+
+	/* from ED_view3d_ob_project_mat_get() */
+	float projection_mat[4][4];
+
+	/* Clean this up! */
+	struct ViewContext *vc;
+	struct Brush *brush;
+
+	float special_rotation;
+	float grab_delta[3], grab_delta_symmetry[3];
+	float old_grab_location[3], orig_grab_location[3];
+
+	/* screen-space rotation defined by mouse motion */
+	float   rake_rotation[4], rake_rotation_symmetry[4];
+	bool is_rake_rotation_valid;
+	struct SculptRakeData rake_data;
+
+	/* Symmetry index between 0 and 7 bit combo 0 is Brush only;
+	 * 1 is X mirror; 2 is Y mirror; 3 is XY; 4 is Z; 5 is XZ; 6 is YZ; 7 is XYZ */
+	int symmetry;
+	int mirror_symmetry_pass; /* the symmetry pass we are currently on between 0 and 7*/
+	float true_view_normal[3];
+	float view_normal[3];
+
+	/* sculpt_normal gets calculated by calc_sculpt_normal(), then the
+	* sculpt_normal_symm gets updated quickly with the usual symmetry
+	* transforms */
+	float sculpt_normal[3];
+	float sculpt_normal_symm[3];
+
+	/* Used for area texture mode, local_mat gets calculated by
+	* calc_brush_local_mat() and used in tex_strength(). */
+	float brush_local_mat[4][4];
+
+	float plane_offset[3]; /* used to shift the plane around when doing tiled strokes */
+	int tile_pass;
+
+	float last_center[3];
+	int radial_symmetry_pass;
+	float symm_rot_mat[4][4];
+	float symm_rot_mat_inv[4][4];
+	bool original;
+	float anchored_location[3];
+
+	float vertex_rotation; /* amount to rotate the vertices when using rotate brush */
+	struct Dial *dial;
+
+	char saved_active_brush_name[MAX_ID_NAME];
+	char saved_mask_brush_tool;
+	int saved_smooth_size; /* smooth tool copies the size of the current tool */
+	bool alt_smooth;
+
+	float plane_trim_squared;
+
+	bool supports_gravity;
+	float true_gravity_direction[3];
+	float gravity_direction[3];
+
+	rcti previous_r; /* previous redraw rectangle */
+	rcti current_r; /* current redraw rectangle */
+
+} StrokeCache;
+
+void sculpt_cache_calc_brushdata_symm(
+        StrokeCache *cache, const char symm,
+        const char axis, const float angle);
+void sculpt_cache_free(StrokeCache *cache);
+
 SculptUndoNode *sculpt_undo_push_node(Object *ob, PBVHNode *node, SculptUndoType type);
 SculptUndoNode *sculpt_undo_get_node(PBVHNode *node);
 void sculpt_undo_push_begin(const char *name);
@@ -124,6 +324,8 @@ void sculpt_vertcos_to_key(Object *ob, KeyBlock *kb, float (*vertCos)[3]);
 
 void sculpt_update_object_bounding_box(struct Object *ob);
 
+bool sculpt_get_redraw_rect(struct ARegion *ar, struct RegionView3D *rv3d, Object *ob, rcti *rect);
+
 #define SCULPT_THREADED_LIMIT 4
 
 #endif
diff --git a/source/blender/editors/space_action/action_edit.c b/source/blender/editors/space_action/action_edit.c
index f8db35e2311..a9920389980 100644
--- a/source/blender/editors/space_action/action_edit.c
+++ b/source/blender/editors/space_action/action_edit.c
@@ -1522,7 +1522,7 @@ static int actkeys_framejump_exec(bContext *C, wmOperator *UNUSED(op))
 	/* set the new current frame value, based on the average time */
 	if (ked.i1) {
 		Scene *scene = ac.scene;
-		CFRA = iroundf(ked.f1 / ked.i1);
+		CFRA = round_fl_to_int(ked.f1 / ked.i1);
 		SUBFRA = 0.f;
 	}
 	
diff --git a/source/blender/editors/space_action/action_select.c b/source/blender/editors/space_action/action_select.c
index 553be0ad290..17edbc6cc1d 100644
--- a/source/blender/editors/space_action/action_select.c
+++ b/source/blender/editors/space_action/action_select.c
@@ -262,6 +262,7 @@ static void borderselect_action(bAnimContext *ac, const rcti rect, short mode, s
 		{
 			/* loop over data selecting */
 			switch (ale->type) {
+#if 0 /* XXXX: Keyframes are not currently shown here */
 				case ANIMTYPE_GPDATABLOCK:
 				{
 					bGPdata *gpd = ale->data;
@@ -271,6 +272,7 @@ static void borderselect_action(bAnimContext *ac, const rcti rect, short mode, s
 					}
 					break;
 				}
+#endif
 				case ANIMTYPE_GPLAYER:
 					ED_gplayer_frames_select_border(ale->data, rectf.xmin, rectf.xmax, selectmode);
 					break;
diff --git a/source/blender/editors/space_action/space_action.c b/source/blender/editors/space_action/space_action.c
index 83655a2ba9e..5cde224b7dc 100644
--- a/source/blender/editors/space_action/space_action.c
+++ b/source/blender/editors/space_action/space_action.c
@@ -624,13 +624,17 @@ static void action_id_remap(ScrArea *UNUSED(sa), SpaceLink *slink, ID *old_id, I
 {
 	SpaceAction *sact = (SpaceAction *)slink;
 
-	if (!ELEM(GS(old_id->name), ID_GR)) {
-		return;
+	if ((ID *)sact->action == old_id) {
+		sact->action = (bAction *)new_id;
 	}
 
 	if ((ID *)sact->ads.filter_grp == old_id) {
 		sact->ads.filter_grp = (Group *)new_id;
 	}
+	if ((ID *)sact->ads.source == old_id) {
+		sact->ads.source = new_id;
+	}
+
 }
 
 /* only called once, from space/spacetypes.c */
diff --git a/source/blender/editors/space_clip/clip_draw.c b/source/blender/editors/space_clip/clip_draw.c
index 695d04d3850..a71b2baa96f 100644
--- a/source/blender/editors/space_clip/clip_draw.c
+++ b/source/blender/editors/space_clip/clip_draw.c
@@ -365,9 +365,11 @@ static void draw_stabilization_border(SpaceClip *sc, ARegion *ar, int width, int
 
 static void draw_track_path(SpaceClip *sc, MovieClip *UNUSED(clip), MovieTrackingTrack *track)
 {
+#define MAX_STATIC_PATH 64
 	int count = sc->path_length;
 	int i, a, b, curindex = -1;
-	float path[102][2];
+	float path_static[(MAX_STATIC_PATH + 1) * 2][2];
+	float (*path)[2];
 	int tiny = sc->flag & SC_SHOW_TINY_MARKER, framenr, start_frame;
 	MovieTrackingMarker *marker;
 
@@ -380,6 +382,13 @@ static void draw_track_path(SpaceClip *sc, MovieClip *UNUSED(clip), MovieTrackin
 	if (marker->framenr != framenr || marker->flag & MARKER_DISABLED)
 		return;
 
+	if (count < MAX_STATIC_PATH) {
+		path = path_static;
+	}
+	else {
+		path = MEM_mallocN(sizeof(*path) * (count + 1) * 2, "path");
+	}
+
 	a = count;
 	i = framenr - 1;
 	while (i >= framenr - count) {
@@ -470,6 +479,11 @@ static void draw_track_path(SpaceClip *sc, MovieClip *UNUSED(clip), MovieTrackin
 		glVertex2f(path[i][0], path[i][1]);
 	}
 	glEnd();
+
+	if (path != path_static) {
+		MEM_freeN(path);
+	}
+#undef MAX_STATIC_PATH
 }
 
 static void draw_marker_outline(SpaceClip *sc, MovieTrackingTrack *track, MovieTrackingMarker *marker,
diff --git a/source/blender/editors/space_clip/clip_ops.c b/source/blender/editors/space_clip/clip_ops.c
index 9430ee626ba..970eae0ad14 100644
--- a/source/blender/editors/space_clip/clip_ops.c
+++ b/source/blender/editors/space_clip/clip_ops.c
@@ -941,7 +941,7 @@ static int frame_from_event(bContext *C, const wmEvent *event)
 
 		UI_view2d_region_to_view(&ar->v2d, event->mval[0], event->mval[1], &viewx, &viewy);
 
-		framenr = iroundf(viewx);
+		framenr = round_fl_to_int(viewx);
 	}
 
 	return framenr;
diff --git a/source/blender/editors/space_clip/space_clip.c b/source/blender/editors/space_clip/space_clip.c
index 237082f948b..58930fa2cf2 100644
--- a/source/blender/editors/space_clip/space_clip.c
+++ b/source/blender/editors/space_clip/space_clip.c
@@ -821,6 +821,7 @@ static void clip_keymap(struct wmKeyConfig *keyconf)
 #endif
 }
 
+/* DO NOT make this static, this hides the symbol and breaks API generation script. */
 const char *clip_context_dir[] = {"edit_movieclip", "edit_mask", NULL};
 
 static int clip_context(const bContext *C, const char *member, bContextDataResult *result)
diff --git a/source/blender/editors/space_clip/tracking_ops_track.c b/source/blender/editors/space_clip/tracking_ops_track.c
index 368cbeaf955..0dd0ee8c7d4 100644
--- a/source/blender/editors/space_clip/tracking_ops_track.c
+++ b/source/blender/editors/space_clip/tracking_ops_track.c
@@ -165,7 +165,7 @@ static int track_markers_initjob(bContext *C,
 
 	track_init_markers(sc, clip, framenr, &frames_limit);
 
-	tmj->sfra = ED_space_clip_get_clip_frame_number(sc);
+	tmj->sfra = framenr;
 	tmj->clip = clip;
 	tmj->backwards = backwards;
 
@@ -176,6 +176,7 @@ static int track_markers_initjob(bContext *C,
 		else {
 			tmj->efra = EFRA;
 		}
+		tmj->efra = BKE_movieclip_remap_scene_to_clip_frame(clip, tmj->efra);
 	}
 	else {
 		if (backwards) {
@@ -196,8 +197,6 @@ static int track_markers_initjob(bContext *C,
 		}
 	}
 
-	tmj->efra = BKE_movieclip_remap_scene_to_clip_frame(clip, tmj->efra);
-
 	if (settings->speed != TRACKING_SPEED_FASTEST) {
 		tmj->delay = 1.0f / scene->r.frs_sec * 1000.0f;
 
@@ -212,7 +211,7 @@ static int track_markers_initjob(bContext *C,
 		}
 	}
 
-	tmj->context = BKE_autotrack_context_new(clip, &sc->user, backwards, 1);
+	tmj->context = BKE_autotrack_context_new(clip, &sc->user, backwards, true);
 
 	clip->tracking_context = tmj->context;
 
@@ -310,6 +309,7 @@ static void track_markers_endjob(void *tmv)
 static void track_markers_freejob(void *tmv)
 {
 	TrackMarkersJob *tmj = (TrackMarkersJob *)tmv;
+	tmj->clip->tracking_context = NULL;
 	BKE_autotrack_context_free(tmj->context);
 	MEM_freeN(tmj);
 }
diff --git a/source/blender/editors/space_console/console_intern.h b/source/blender/editors/space_console/console_intern.h
index 5b016b77e9f..f523cf0d476 100644
--- a/source/blender/editors/space_console/console_intern.h
+++ b/source/blender/editors/space_console/console_intern.h
@@ -70,6 +70,6 @@ void CONSOLE_OT_select_set(struct wmOperatorType *ot);
 void CONSOLE_OT_select_word(struct wmOperatorType *ot);
 
 enum { LINE_BEGIN, LINE_END, PREV_CHAR, NEXT_CHAR, PREV_WORD, NEXT_WORD };
-enum { DEL_ALL, DEL_NEXT_CHAR, DEL_PREV_CHAR, DEL_NEXT_WORD, DEL_PREV_WORD, DEL_SELECTION, DEL_NEXT_SEL, DEL_PREV_SEL };
+enum { DEL_NEXT_CHAR, DEL_PREV_CHAR, DEL_NEXT_WORD, DEL_PREV_WORD, DEL_SELECTION, DEL_NEXT_SEL, DEL_PREV_SEL };
 
 #endif /* __CONSOLE_INTERN_H__ */
diff --git a/source/blender/editors/space_file/filelist.c b/source/blender/editors/space_file/filelist.c
index 6c33091ff01..48f3dd4fde6 100644
--- a/source/blender/editors/space_file/filelist.c
+++ b/source/blender/editors/space_file/filelist.c
@@ -277,9 +277,10 @@ typedef struct FileListFilter {
 
 /* FileListFilter.flags */
 enum {
-	FLF_HIDE_DOT     = 1 << 0,
-	FLF_HIDE_PARENT  = 1 << 1,
-	FLF_HIDE_LIB_DIR = 1 << 2,
+	FLF_DO_FILTER    = 1 << 0,
+	FLF_HIDE_DOT     = 1 << 1,
+	FLF_HIDE_PARENT  = 1 << 2,
+	FLF_HIDE_LIB_DIR = 1 << 3,
 };
 
 typedef struct FileList {
@@ -594,24 +595,27 @@ static bool is_filtered_file(FileListInternEntry *file, const char *UNUSED(root)
 {
 	bool is_filtered = !is_hidden_file(file->relpath, filter);
 
-	if (is_filtered && filter->filter && !FILENAME_IS_CURRPAR(file->relpath)) {
-		if (file->typeflag & FILE_TYPE_DIR) {
-			if (file->typeflag & (FILE_TYPE_BLENDERLIB | FILE_TYPE_BLENDER | FILE_TYPE_BLENDER_BACKUP)) {
-				if (!(filter->filter & (FILE_TYPE_BLENDER | FILE_TYPE_BLENDER_BACKUP))) {
-					is_filtered = false;
+	if (is_filtered && (filter->flags & FLF_DO_FILTER) && !FILENAME_IS_CURRPAR(file->relpath)) {
+		/* We only check for types if some type are enabled in filtering. */
+		if (filter->filter) {
+			if (file->typeflag & FILE_TYPE_DIR) {
+				if (file->typeflag & (FILE_TYPE_BLENDERLIB | FILE_TYPE_BLENDER | FILE_TYPE_BLENDER_BACKUP)) {
+					if (!(filter->filter & (FILE_TYPE_BLENDER | FILE_TYPE_BLENDER_BACKUP))) {
+						is_filtered = false;
+					}
+				}
+				else {
+					if (!(filter->filter & FILE_TYPE_FOLDER)) {
+						is_filtered = false;
+					}
 				}
 			}
 			else {
-				if (!(filter->filter & FILE_TYPE_FOLDER)) {
+				if (!(file->typeflag & filter->filter)) {
 					is_filtered = false;
 				}
 			}
 		}
-		else {
-			if (!(file->typeflag & filter->filter)) {
-				is_filtered = false;
-			}
-		}
 		if (is_filtered && (filter->filter_search[0] != '\0')) {
 			if (fnmatch(filter->filter_search, file->relpath, FNM_CASEFOLD) != 0) {
 				is_filtered = false;
@@ -631,28 +635,31 @@ static bool is_filtered_lib(FileListInternEntry *file, const char *root, FileLis
 
 	if (BLO_library_path_explode(path, dir, &group, &name)) {
 		is_filtered = !is_hidden_file(file->relpath, filter);
-		if (is_filtered && filter->filter && !FILENAME_IS_CURRPAR(file->relpath)) {
-			if (file->typeflag & FILE_TYPE_DIR) {
-				if (file->typeflag & (FILE_TYPE_BLENDERLIB | FILE_TYPE_BLENDER | FILE_TYPE_BLENDER_BACKUP)) {
-					if (!(filter->filter & (FILE_TYPE_BLENDER | FILE_TYPE_BLENDER_BACKUP))) {
-						is_filtered = false;
+		if (is_filtered && (filter->flags & FLF_DO_FILTER) && !FILENAME_IS_CURRPAR(file->relpath)) {
+			/* We only check for types if some type are enabled in filtering. */
+			if (filter->filter || filter->filter_id) {
+				if (file->typeflag & FILE_TYPE_DIR) {
+					if (file->typeflag & (FILE_TYPE_BLENDERLIB | FILE_TYPE_BLENDER | FILE_TYPE_BLENDER_BACKUP)) {
+						if (!(filter->filter & (FILE_TYPE_BLENDER | FILE_TYPE_BLENDER_BACKUP))) {
+							is_filtered = false;
+						}
 					}
-				}
-				else {
-					if (!(filter->filter & FILE_TYPE_FOLDER)) {
-						is_filtered = false;
+					else {
+						if (!(filter->filter & FILE_TYPE_FOLDER)) {
+							is_filtered = false;
+						}
 					}
 				}
-			}
-			if (is_filtered && group) {
-				if (!name && (filter->flags & FLF_HIDE_LIB_DIR)) {
-					is_filtered = false;
-				}
-				else {
-					unsigned int filter_id = groupname_to_filter_id(group);
-					if (!(filter_id & filter->filter_id)) {
+				if (is_filtered && group) {
+					if (!name && (filter->flags & FLF_HIDE_LIB_DIR)) {
 						is_filtered = false;
 					}
+					else {
+						unsigned int filter_id = groupname_to_filter_id(group);
+						if (!(filter_id & filter->filter_id)) {
+							is_filtered = false;
+						}
+					}
 				}
 			}
 			if (is_filtered && (filter->filter_search[0] != '\0')) {
@@ -729,12 +736,17 @@ void filelist_filter(FileList *filelist)
 	MEM_freeN(filtered_tmp);
 }
 
-void filelist_setfilter_options(FileList *filelist, const bool hide_dot, const bool hide_parent,
+void filelist_setfilter_options(FileList *filelist, const bool do_filter,
+                                const bool hide_dot, const bool hide_parent,
                                 const unsigned int filter, const unsigned int filter_id,
                                 const char *filter_glob, const char *filter_search)
 {
 	bool update = false;
 
+	if (((filelist->filter_data.flags & FLF_DO_FILTER) != 0) != (do_filter != 0)) {
+		filelist->filter_data.flags ^= FLF_DO_FILTER;
+		update = true;
+	}
 	if (((filelist->filter_data.flags & FLF_HIDE_DOT) != 0) != (hide_dot != 0)) {
 		filelist->filter_data.flags ^= FLF_HIDE_DOT;
 		update = true;
@@ -1104,7 +1116,10 @@ static void filelist_cache_preview_runf(TaskPool *__restrict pool, void *taskdat
 	preview->img = IMB_thumb_manage(preview->path, THB_LARGE, source);
 	IMB_thumb_path_unlock(preview->path);
 
-	preview->flags = 0;  /* Used to tell free func to not free anything! */
+	/* Used to tell free func to not free anything.
+	 * Note that we do not care about cas result here,
+	 * we only want value attribution itself to be atomic (and memory barier).*/
+	atomic_cas_uint32(&preview->flags, preview->flags, 0);
 	BLI_thread_queue_push(cache->previews_done, preview);
 
 //	printf("%s: End (%d)...\n", __func__, threadid);
@@ -1979,8 +1994,7 @@ int ED_path_extension_type(const char *path)
 	else if (BLI_testextensie(path, ".abc")) {
 		return FILE_TYPE_ALEMBIC;
 	}
-	else if (BLI_testextensie_array(path, imb_ext_image) ||
-	         (G.have_quicktime && BLI_testextensie_array(path, imb_ext_image_qt)))
+	else if (BLI_testextensie_array(path, imb_ext_image))
 	{
 		return FILE_TYPE_IMAGE;
 	}
diff --git a/source/blender/editors/space_file/filelist.h b/source/blender/editors/space_file/filelist.h
index f4304681780..4e9c1e0dd1d 100644
--- a/source/blender/editors/space_file/filelist.h
+++ b/source/blender/editors/space_file/filelist.h
@@ -68,7 +68,8 @@ int                 folderlist_clear_next(struct SpaceFile *sfile);
 void                filelist_setsorting(struct FileList *filelist, const short sort);
 void                filelist_sort(struct FileList *filelist);
 
-void                filelist_setfilter_options(struct FileList *filelist, const bool hide_dot, const bool hide_parent,
+void                filelist_setfilter_options(struct FileList *filelist, const bool do_filter,
+                                               const bool hide_dot, const bool hide_parent,
                                                const unsigned int filter, const unsigned int filter_id,
                                                const char *filter_glob, const char *filter_search);
 void                filelist_filter(struct FileList *filelist);
diff --git a/source/blender/editors/space_file/space_file.c b/source/blender/editors/space_file/space_file.c
index 374db92297d..287b98fa589 100644
--- a/source/blender/editors/space_file/space_file.c
+++ b/source/blender/editors/space_file/space_file.c
@@ -223,9 +223,10 @@ static void file_refresh(const bContext *C, ScrArea *sa)
 	filelist_setdir(sfile->files, params->dir);
 	filelist_setrecursion(sfile->files, params->recursion_level);
 	filelist_setsorting(sfile->files, params->sort);
-	filelist_setfilter_options(sfile->files, (params->flag & FILE_HIDE_DOT) != 0,
+	filelist_setfilter_options(sfile->files, (params->flag & FILE_FILTER) != 0,
+	                                         (params->flag & FILE_HIDE_DOT) != 0,
 	                                         false, /* TODO hide_parent, should be controllable? */
-	                                         (params->flag & FILE_FILTER) ? params->filter : 0,
+	                                         params->filter,
 	                                         params->filter_id,
 	                                         params->filter_glob,
 	                                         params->filter_search);
diff --git a/source/blender/editors/space_graph/graph_edit.c b/source/blender/editors/space_graph/graph_edit.c
index f38d36853d7..861a38da2c7 100644
--- a/source/blender/editors/space_graph/graph_edit.c
+++ b/source/blender/editors/space_graph/graph_edit.c
@@ -195,8 +195,8 @@ static int graphkeys_previewrange_exec(bContext *C, wmOperator *UNUSED(op))
 	/* set the range directly */
 	get_graph_keyframe_extents(&ac, &min, &max, NULL, NULL, false, false);
 	scene->r.flag |= SCER_PRV_RANGE;
-	scene->r.psfra = iroundf(min);
-	scene->r.pefra = iroundf(max);
+	scene->r.psfra = round_fl_to_int(min);
+	scene->r.pefra = round_fl_to_int(max);
 	
 	/* set notifier that things have changed */
 	// XXX err... there's nothing for frame ranges yet, but this should do fine too
@@ -2036,7 +2036,7 @@ static int graphkeys_framejump_exec(bContext *C, wmOperator *UNUSED(op))
 		}
 		else {
 			/* Animation Mode - Affects current frame (int) */
-			CFRA = iroundf(ked.f1 / ked.i1);
+			CFRA = round_fl_to_int(ked.f1 / ked.i1);
 			SUBFRA = 0.f;
 			sipo->cursorVal = ked.f2 / (float)ked.i1;
 		}
diff --git a/source/blender/editors/space_graph/graph_ops.c b/source/blender/editors/space_graph/graph_ops.c
index 75f0da83e77..5c670a216d8 100644
--- a/source/blender/editors/space_graph/graph_ops.c
+++ b/source/blender/editors/space_graph/graph_ops.c
@@ -94,7 +94,7 @@ static void graphview_cursor_apply(bContext *C, wmOperator *op)
 		 * NOTE: sync this part of the code with ANIM_OT_change_frame
 		 */
 		/* 1) frame is rounded to the nearest int, since frames are ints */
-		CFRA = iroundf(frame);
+		CFRA = round_fl_to_int(frame);
 		
 		if (scene->r.flag & SCER_LOCK_FRAME_SELECTION) {
 			/* Clip to preview range
diff --git a/source/blender/editors/space_image/image_draw.c b/source/blender/editors/space_image/image_draw.c
index e810f4db7dd..8cb23c9e021 100644
--- a/source/blender/editors/space_image/image_draw.c
+++ b/source/blender/editors/space_image/image_draw.c
@@ -88,7 +88,7 @@ static void draw_render_info(const bContext *C,
                              float zoomy)
 {
 	RenderResult *rr;
-	Render *re = RE_GetRender(scene->id.name);
+	Render *re = RE_GetSceneRender(scene);
 	RenderData *rd = RE_engine_get_render_data(re);
 	Scene *stats_scene = ED_render_job_get_scene(C);
 	if (stats_scene == NULL) {
diff --git a/source/blender/editors/space_image/image_ops.c b/source/blender/editors/space_image/image_ops.c
index a0d67626940..55fcf9213d6 100644
--- a/source/blender/editors/space_image/image_ops.c
+++ b/source/blender/editors/space_image/image_ops.c
@@ -1169,6 +1169,7 @@ static int image_sequence_get_len(ListBase *frames, int *ofs)
 		}
 		return frame_curr - (*ofs);
 	}
+	*ofs = 0;
 	return 0;
 }
 
@@ -3525,7 +3526,7 @@ static int frame_from_event(bContext *C, const wmEvent *event)
 
 		UI_view2d_region_to_view(&ar->v2d, event->mval[0], event->mval[1], &viewx, &viewy);
 
-		framenr = iroundf(viewx);
+		framenr = round_fl_to_int(viewx);
 	}
 
 	return framenr;
@@ -3631,7 +3632,7 @@ static int render_border_exec(bContext *C, wmOperator *op)
 {
 	ARegion *ar = CTX_wm_region(C);
 	Scene *scene = CTX_data_scene(C);
-	Render *re = RE_GetRender(scene->id.name);
+	Render *re = RE_GetSceneRender(scene);
 	RenderData *rd;
 	rctf border;
 
diff --git a/source/blender/editors/space_nla/nla_edit.c b/source/blender/editors/space_nla/nla_edit.c
index 1f298373a80..f7f7c82171d 100644
--- a/source/blender/editors/space_nla/nla_edit.c
+++ b/source/blender/editors/space_nla/nla_edit.c
@@ -365,8 +365,8 @@ static int nlaedit_previewrange_exec(bContext *C, wmOperator *UNUSED(op))
 	/* set the range directly */
 	get_nlastrip_extents(&ac, &min, &max, true);
 	scene->r.flag |= SCER_PRV_RANGE;
-	scene->r.psfra = iroundf(min);
-	scene->r.pefra = iroundf(max);
+	scene->r.psfra = round_fl_to_int(min);
+	scene->r.pefra = round_fl_to_int(max);
 	
 	/* set notifier that things have changed */
 	// XXX err... there's nothing for frame ranges yet, but this should do fine too
diff --git a/source/blender/editors/space_node/drawnode.c b/source/blender/editors/space_node/drawnode.c
index f58b4050834..7ef34669ee2 100644
--- a/source/blender/editors/space_node/drawnode.c
+++ b/source/blender/editors/space_node/drawnode.c
@@ -638,7 +638,7 @@ static void node_draw_reroute(const bContext *C, ARegion *ar, SpaceNode *UNUSED(
 	 * highlight also if node itself is selected, since we don't display the node body separately!
 	 */
 	for (sock = node->inputs.first; sock; sock = sock->next) {
-		node_socket_circle_draw(C, ntree, node, sock, socket_size, (sock->flag & SELECT) || (node->flag & SELECT));
+		node_socket_draw(C, ntree, node, sock, socket_size, (sock->flag & SELECT) || (node->flag & SELECT));
 	}
 
 	UI_block_end(C, node->block);
@@ -2204,16 +2204,17 @@ static void node_composit_backdrop_viewer(SpaceNode *snode, ImBuf *backdrop, bNo
 	if (node->custom1 == 0) {
 		const float backdropWidth = backdrop->x;
 		const float backdropHeight = backdrop->y;
-		const float cx  = x + snode->zoom * backdropWidth * node->custom3;
+		const float cx = x + snode->zoom * backdropWidth  * node->custom3;
 		const float cy = y + snode->zoom * backdropHeight * node->custom4;
+		const float cross_size = 12 * U.pixelsize;
 
 		glColor3f(1.0, 1.0, 1.0);
 
 		glBegin(GL_LINES);
-		glVertex2f(cx - 25, cy - 25);
-		glVertex2f(cx + 25, cy + 25);
-		glVertex2f(cx + 25, cy - 25);
-		glVertex2f(cx - 25, cy + 25);
+		glVertex2f(cx - cross_size, cy - cross_size);
+		glVertex2f(cx + cross_size, cy + cross_size);
+		glVertex2f(cx + cross_size, cy - cross_size);
+		glVertex2f(cx - cross_size, cy + cross_size);
 		glEnd();
 	}
 }
diff --git a/source/blender/editors/space_node/node_draw.c b/source/blender/editors/space_node/node_draw.c
index 6e25c87d274..d7119302611 100644
--- a/source/blender/editors/space_node/node_draw.c
+++ b/source/blender/editors/space_node/node_draw.c
@@ -617,34 +617,22 @@ static void node_draw_mute_line(View2D *v2d, SpaceNode *snode, bNode *node)
 	glDisable(GL_LINE_SMOOTH);
 }
 
-/* this might have some more generic use */
-static void node_circle_draw(float x, float y, float size, const float col[4], int highlight)
+static void node_socket_shape_draw(
+        float x, float y, float size, const float col[4], bool highlight,
+        const float coords[][2], int coords_len)
 {
-	/* 16 values of sin function */
-	static const float si[16] = {
-		0.00000000f, 0.39435585f, 0.72479278f, 0.93775213f,
-		0.99871650f, 0.89780453f, 0.65137248f, 0.29936312f,
-		-0.10116832f, -0.48530196f, -0.79077573f, -0.96807711f,
-		-0.98846832f, -0.84864425f, -0.57126821f, -0.20129852f
-	};
-	/* 16 values of cos function */
-	static const float co[16] = {
-		1.00000000f, 0.91895781f, 0.68896691f, 0.34730525f,
-		-0.05064916f, -0.44039415f, -0.75875812f, -0.95413925f,
-		-0.99486932f, -0.87434661f, -0.61210598f, -0.25065253f,
-		0.15142777f, 0.52896401f, 0.82076344f, 0.97952994f,
-	};
 	int a;
-	
+
 	glColor4fv(col);
-	
+
 	glEnable(GL_BLEND);
 	glBegin(GL_POLYGON);
-	for (a = 0; a < 16; a++)
-		glVertex2f(x + size * si[a], y + size * co[a]);
+	for (a = 0; a < coords_len; a++) {
+		glVertex2f(x + size * coords[a][0], y + size * coords[a][1]);
+	}
 	glEnd();
 	glDisable(GL_BLEND);
-	
+
 	if (highlight) {
 		UI_ThemeColor(TH_TEXT_HI);
 		glLineWidth(1.5f);
@@ -655,14 +643,16 @@ static void node_circle_draw(float x, float y, float size, const float col[4], i
 	glEnable(GL_BLEND);
 	glEnable(GL_LINE_SMOOTH);
 	glBegin(GL_LINE_LOOP);
-	for (a = 0; a < 16; a++)
-		glVertex2f(x + size * si[a], y + size * co[a]);
+	for (a = 0; a < coords_len; a++) {
+		glVertex2f(x + size * coords[a][0], y + size * coords[a][1]);
+	}
 	glEnd();
 	glDisable(GL_LINE_SMOOTH);
 	glDisable(GL_BLEND);
 }
 
-void node_socket_circle_draw(const bContext *C, bNodeTree *ntree, bNode *node, bNodeSocket *sock, float size, int highlight)
+
+void node_socket_draw(const bContext *C, bNodeTree *ntree, bNode *node, bNodeSocket *sock, float size, bool highlight)
 {
 	PointerRNA ptr, node_ptr;
 	float color[4];
@@ -670,7 +660,60 @@ void node_socket_circle_draw(const bContext *C, bNodeTree *ntree, bNode *node, b
 	RNA_pointer_create((ID *)ntree, &RNA_NodeSocket, sock, &ptr);
 	RNA_pointer_create((ID *)ntree, &RNA_Node, node, &node_ptr);
 	sock->typeinfo->draw_color((bContext *)C, &ptr, &node_ptr, color);
-	node_circle_draw(sock->locx, sock->locy, size, color, highlight);
+
+	/* 16 values of {sin, cos} function */
+	const float shape_circle[16][2] = {
+		{0.00000000f, 1.00000000f},
+		{0.39435585f, 0.91895781f},
+		{0.72479278f, 0.68896691f},
+		{0.93775213f, 0.34730525f},
+		{0.99871650f, -0.05064916f},
+		{0.89780453f, -0.44039415f},
+		{0.65137248f, -0.75875812f},
+		{0.29936312f, -0.95413925f},
+		{-0.10116832f, -0.99486932f},
+		{-0.48530196f, -0.87434661f},
+		{-0.79077573f, -0.61210598f},
+		{-0.96807711f, -0.25065253f},
+		{-0.98846832f, 0.15142777f},
+		{-0.84864425f, 0.52896401f},
+		{-0.57126821f, 0.82076344f},
+		{-0.20129852f, 0.97952994f }
+	};
+
+	const float shape_diamond[4][2] = {
+		{0.0f, 1.2f},
+		{1.2f, 0.0f},
+		{0.0f, -1.2f},
+		{-1.2f, 0.0f},
+	};
+
+	const float shape_square[4][2] = {
+		{-0.9f, 0.9f},
+		{0.9f, 0.9f},
+		{0.9f, -0.9f},
+		{-0.9f, -0.9f},
+	};
+
+	const float (*shape)[2];
+	int shape_len;
+	switch (sock->draw_shape) {
+		default:
+		case SOCK_DRAW_SHAPE_CIRCLE:
+			shape = shape_circle;
+			shape_len = ARRAY_SIZE(shape_circle);
+			break;
+		case SOCK_DRAW_SHAPE_DIAMOND:
+			shape = shape_diamond;
+			shape_len = ARRAY_SIZE(shape_diamond);
+			break;
+		case SOCK_DRAW_SHAPE_SQUARE:
+			shape = shape_square;
+			shape_len = ARRAY_SIZE(shape_square);
+			break;
+	}
+
+	node_socket_shape_draw(sock->locx, sock->locy, size, color, highlight, shape, shape_len);
 }
 
 /* **************  Socket callbacks *********** */
@@ -935,7 +978,7 @@ static void node_draw_basis(const bContext *C, ARegion *ar, SpaceNode *snode, bN
 		if (nodeSocketIsHidden(sock))
 			continue;
 		
-		node_socket_circle_draw(C, ntree, node, sock, NODE_SOCKSIZE, sock->flag & SELECT);
+		node_socket_draw(C, ntree, node, sock, NODE_SOCKSIZE, sock->flag & SELECT);
 	}
 	
 	/* socket outputs */
@@ -943,7 +986,7 @@ static void node_draw_basis(const bContext *C, ARegion *ar, SpaceNode *snode, bN
 		if (nodeSocketIsHidden(sock))
 			continue;
 		
-		node_socket_circle_draw(C, ntree, node, sock, NODE_SOCKSIZE, sock->flag & SELECT);
+		node_socket_draw(C, ntree, node, sock, NODE_SOCKSIZE, sock->flag & SELECT);
 	}
 	
 	/* preview */
@@ -1048,7 +1091,7 @@ static void node_draw_hidden(const bContext *C, ARegion *ar, SpaceNode *snode, b
 		//	BLI_snprintf(showname, sizeof(showname), "[%s]", showname); /* XXX - don't print into self! */
 
 		uiDefBut(node->block, UI_BTYPE_LABEL, 0, showname,
-		         iroundf(rct->xmin + NODE_MARGIN_X), iroundf(centy - NODE_DY * 0.5f),
+		         round_fl_to_int(rct->xmin + NODE_MARGIN_X), round_fl_to_int(centy - NODE_DY * 0.5f),
 		         (short)(BLI_rctf_size_x(rct) - 18.0f - 12.0f), (short)NODE_DY,
 		         NULL, 0, 0, 0, 0, "");
 	}
@@ -1066,13 +1109,15 @@ static void node_draw_hidden(const bContext *C, ARegion *ar, SpaceNode *snode, b
 
 	/* sockets */
 	for (sock = node->inputs.first; sock; sock = sock->next) {
-		if (!nodeSocketIsHidden(sock))
-			node_socket_circle_draw(C, ntree, node, sock, socket_size, sock->flag & SELECT);
+		if (!nodeSocketIsHidden(sock)) {
+			node_socket_draw(C, ntree, node, sock, socket_size, sock->flag & SELECT);
+		}
 	}
 	
 	for (sock = node->outputs.first; sock; sock = sock->next) {
-		if (!nodeSocketIsHidden(sock))
-			node_socket_circle_draw(C, ntree, node, sock, socket_size, sock->flag & SELECT);
+		if (!nodeSocketIsHidden(sock)) {
+			node_socket_draw(C, ntree, node, sock, socket_size, sock->flag & SELECT);
+		}
 	}
 	
 	UI_block_end(C, node->block);
diff --git a/source/blender/editors/space_node/node_edit.c b/source/blender/editors/space_node/node_edit.c
index 5f8f839025f..e91fd1ee575 100644
--- a/source/blender/editors/space_node/node_edit.c
+++ b/source/blender/editors/space_node/node_edit.c
@@ -1321,7 +1321,7 @@ static int node_read_fullsamplelayers_exec(bContext *C, wmOperator *UNUSED(op))
 	Main *bmain = CTX_data_main(C);
 	SpaceNode *snode = CTX_wm_space_node(C);
 	Scene *curscene = CTX_data_scene(C);
-	Render *re = RE_NewRender(curscene->id.name);
+	Render *re = RE_NewSceneRender(curscene);
 
 	WM_cursor_wait(1);
 	RE_MergeFullSample(re, bmain, curscene, snode->nodetree);
diff --git a/source/blender/editors/space_node/node_group.c b/source/blender/editors/space_node/node_group.c
index 914f8ffbe10..9d750bfe348 100644
--- a/source/blender/editors/space_node/node_group.c
+++ b/source/blender/editors/space_node/node_group.c
@@ -37,6 +37,7 @@
 #include "DNA_anim_types.h"
 
 #include "BLI_listbase.h"
+#include "BLI_linklist.h"
 #include "BLI_math.h"
 
 #include "BLT_translation.h"
@@ -186,6 +187,7 @@ static int node_group_ungroup(bNodeTree *ntree, bNode *gnode)
 	bNode *node, *nextnode;
 	bNodeTree *ngroup, *wgroup;
 	ListBase anim_basepaths = {NULL, NULL};
+	LinkNode *nodes_delayed_free = NULL;
 	
 	ngroup = (bNodeTree *)gnode->id;
 	
@@ -208,8 +210,8 @@ static int node_group_ungroup(bNodeTree *ntree, bNode *gnode)
 		 * This also removes remaining links to and from interface nodes.
 		 */
 		if (ELEM(node->type, NODE_GROUP_INPUT, NODE_GROUP_OUTPUT)) {
-			nodeFreeNode(wgroup, node);
-			continue;
+			/* We must delay removal since sockets will reference this node. see: T52092 */
+			BLI_linklist_prepend(&nodes_delayed_free, node);
 		}
 		
 		/* keep track of this node's RNA "base" path (the part of the path identifying the node) 
@@ -336,6 +338,11 @@ static int node_group_ungroup(bNodeTree *ntree, bNode *gnode)
 		}
 	}
 	
+	while (nodes_delayed_free) {
+		node = BLI_linklist_pop(&nodes_delayed_free);
+		nodeFreeNode(ntree, node);
+	}
+
 	/* delete the group instance */
 	nodeFreeNode(ntree, gnode);
 	
diff --git a/source/blender/editors/space_node/node_intern.h b/source/blender/editors/space_node/node_intern.h
index 6b8fa0b88fe..352f9e51012 100644
--- a/source/blender/editors/space_node/node_intern.h
+++ b/source/blender/editors/space_node/node_intern.h
@@ -67,8 +67,9 @@ void snode_group_offset(struct SpaceNode *snode, float *x, float *y);	/* transfo
 
 /* node_draw.c */
 int node_get_colorid(struct bNode *node);
-void node_socket_circle_draw(const struct bContext *C, struct bNodeTree *ntree, struct bNode *node,
-                             struct bNodeSocket *sock, float size, int highlight);
+void node_socket_draw(
+        const struct bContext *C, struct bNodeTree *ntree, struct bNode *node,
+        struct bNodeSocket *sock, float size, bool highlight);
 int node_get_resize_cursor(int directions);
 void node_draw_shadow(struct SpaceNode *snode, struct bNode *node, float radius, float alpha);
 void node_draw_default(const struct bContext *C, struct ARegion *ar, struct SpaceNode *snode,
diff --git a/source/blender/editors/space_node/node_relationships.c b/source/blender/editors/space_node/node_relationships.c
index 5f592431558..3b03399a5e7 100644
--- a/source/blender/editors/space_node/node_relationships.c
+++ b/source/blender/editors/space_node/node_relationships.c
@@ -567,7 +567,13 @@ static void node_link_exit(bContext *C, wmOperator *op, bool apply_links)
 	ntree->is_updating = true;
 	for (linkdata = nldrag->links.first; linkdata; linkdata = linkdata->next) {
 		bNodeLink *link = linkdata->data;
-		
+
+		/* See note below, but basically TEST flag means that the link
+		 * was connected to output (or to a node which affects the
+		 * output).
+		 */
+		do_tag_update |= (link->flag & NODE_LINK_TEST) != 0;
+
 		if (apply_links && link->tosock && link->fromsock) {
 			/* before actually adding the link,
 			 * let nodes perform special link insertion handling
@@ -593,11 +599,6 @@ static void node_link_exit(bContext *C, wmOperator *op, bool apply_links)
 			}
 		}
 		else {
-			/* See note below, but basically TEST flag means that the link
-			 * was connected to output (or to a node which affects the
-			 * output).
-			 */
-			do_tag_update |= (link->flag & NODE_LINK_TEST) != 0;
 			nodeRemLink(ntree, link);
 		}
 	}
diff --git a/source/blender/editors/space_outliner/outliner_draw.c b/source/blender/editors/space_outliner/outliner_draw.c
index 121fe812016..af6fdf2ab86 100644
--- a/source/blender/editors/space_outliner/outliner_draw.c
+++ b/source/blender/editors/space_outliner/outliner_draw.c
@@ -1273,7 +1273,10 @@ static void tselem_draw_icon(uiBlock *block, int xmax, float x, float y, TreeSto
 			}
 		}
 		else {
-			switch (GS(tselem->id->name)) {
+			/* TODO(sergey): Casting to short here just to handle ID_NLA which is
+			 * NOT inside of IDType enum.
+			 */
+			switch ((short)GS(tselem->id->name)) {
 				case ID_SCE:
 					tselem_draw_icon_uibut(&arg, ICON_SCENE_DATA); break;
 				case ID_ME:
@@ -1343,6 +1346,8 @@ static void tselem_draw_icon(uiBlock *block, int xmax, float x, float y, TreeSto
 					tselem_draw_icon_uibut(&arg, ICON_LINE_DATA); break;
 				case ID_GD:
 					tselem_draw_icon_uibut(&arg, ICON_GREASEPENCIL); break;
+				default:
+					break;
 			}
 		}
 	}
diff --git a/source/blender/editors/space_outliner/outliner_edit.c b/source/blender/editors/space_outliner/outliner_edit.c
index 265a19b9e7e..f4089667b04 100644
--- a/source/blender/editors/space_outliner/outliner_edit.c
+++ b/source/blender/editors/space_outliner/outliner_edit.c
@@ -1092,7 +1092,7 @@ static int outliner_show_active_exec(bContext *C, wmOperator *UNUSED(op))
 
 	te = outliner_find_id(so, &so->tree, &obact->id);
 
-	if (obact->type == OB_ARMATURE) {
+	if (te != NULL && obact->type == OB_ARMATURE) {
 		/* traverse down the bone hierarchy in case of armature */
 		TreeElement *te_obact = te;
 
diff --git a/source/blender/editors/space_outliner/outliner_tree.c b/source/blender/editors/space_outliner/outliner_tree.c
index 09a49f201d4..4b0b0e2e0f0 100644
--- a/source/blender/editors/space_outliner/outliner_tree.c
+++ b/source/blender/editors/space_outliner/outliner_tree.c
@@ -882,6 +882,8 @@ static void outliner_add_id_contents(SpaceOops *soops, TreeElement *te, TreeStor
 			}
 			break;
 		}
+		default:
+			break;
 	}
 }
 
diff --git a/source/blender/editors/space_sequencer/sequencer_draw.c b/source/blender/editors/space_sequencer/sequencer_draw.c
index 70a6e6d83cb..97961501c6d 100644
--- a/source/blender/editors/space_sequencer/sequencer_draw.c
+++ b/source/blender/editors/space_sequencer/sequencer_draw.c
@@ -40,6 +40,7 @@
 
 #include "DNA_scene_types.h"
 #include "DNA_mask_types.h"
+#include "DNA_object_types.h"
 #include "DNA_screen_types.h"
 #include "DNA_space_types.h"
 #include "DNA_userdef_types.h"
@@ -1116,18 +1117,16 @@ void draw_image_seq(const bContext *C, Scene *scene, ARegion *ar, SpaceSeq *sseq
 	const char *names[2] = {STEREO_LEFT_NAME, STEREO_RIGHT_NAME};
 	bool draw_metadata = false;
 
-	if (G.is_rendering == false && (scene->r.seq_flag & R_SEQ_GL_PREV) == 0) {
+	if (G.is_rendering == false && (scene->r.seq_prev_type) == OB_RENDER) {
 		/* stop all running jobs, except screen one. currently previews frustrate Render
 		 * needed to make so sequencer's rendering doesn't conflict with compositor
 		 */
 		WM_jobs_kill_type(CTX_wm_manager(C), NULL, WM_JOB_TYPE_COMPOSITE);
 
-		if ((scene->r.seq_flag & R_SEQ_GL_PREV) == 0) {
-			/* in case of final rendering used for preview, kill all previews,
-			 * otherwise threading conflict will happen in rendering module
-			 */
-			WM_jobs_kill_type(CTX_wm_manager(C), NULL, WM_JOB_TYPE_RENDER_PREVIEW);
-		}
+		/* in case of final rendering used for preview, kill all previews,
+		 * otherwise threading conflict will happen in rendering module
+		 */
+		WM_jobs_kill_type(CTX_wm_manager(C), NULL, WM_JOB_TYPE_RENDER_PREVIEW);
 	}
 
 	if ((!draw_overlay || sseq->overlay_type == SEQ_DRAW_OVERLAY_REFERENCE) && !draw_backdrop) {
diff --git a/source/blender/editors/space_sequencer/sequencer_edit.c b/source/blender/editors/space_sequencer/sequencer_edit.c
index e63569ac386..b22a158e151 100644
--- a/source/blender/editors/space_sequencer/sequencer_edit.c
+++ b/source/blender/editors/space_sequencer/sequencer_edit.c
@@ -727,7 +727,7 @@ static Sequence *cut_seq_hard(Scene *scene, Sequence *seq, int cutframe)
 
 	if (!skip_dup) {
 		/* Duplicate AFTER the first change */
-		seqn = BKE_sequence_dupli_recursive(scene, NULL, seq, SEQ_DUPE_UNIQUE_NAME | SEQ_DUPE_ANIM);
+		seqn = BKE_sequence_dupli_recursive(scene, scene, seq, SEQ_DUPE_UNIQUE_NAME | SEQ_DUPE_ANIM);
 	}
 	
 	if (seqn) {
@@ -820,7 +820,7 @@ static Sequence *cut_seq_soft(Scene *scene, Sequence *seq, int cutframe)
 
 	if (!skip_dup) {
 		/* Duplicate AFTER the first change */
-		seqn = BKE_sequence_dupli_recursive(scene, NULL, seq, SEQ_DUPE_UNIQUE_NAME | SEQ_DUPE_ANIM);
+		seqn = BKE_sequence_dupli_recursive(scene, scene, seq, SEQ_DUPE_UNIQUE_NAME | SEQ_DUPE_ANIM);
 	}
 	
 	if (seqn) {
@@ -2162,7 +2162,7 @@ static int sequencer_add_duplicate_exec(bContext *C, wmOperator *UNUSED(op))
 	if (ed == NULL)
 		return OPERATOR_CANCELLED;
 
-	BKE_sequence_base_dupli_recursive(scene, NULL, &nseqbase, ed->seqbasep, SEQ_DUPE_CONTEXT);
+	BKE_sequence_base_dupli_recursive(scene, scene, &nseqbase, ed->seqbasep, SEQ_DUPE_CONTEXT, 0);
 
 	if (nseqbase.first) {
 		Sequence *seq = nseqbase.first;
@@ -3200,7 +3200,7 @@ static int sequencer_copy_exec(bContext *C, wmOperator *op)
 		return OPERATOR_CANCELLED;
 	}
 
-	BKE_sequence_base_dupli_recursive(scene, NULL, &nseqbase, ed->seqbasep, SEQ_DUPE_UNIQUE_NAME);
+	BKE_sequence_base_dupli_recursive(scene, scene, &nseqbase, ed->seqbasep, SEQ_DUPE_UNIQUE_NAME, 0);
 
 	/* To make sure the copied strips have unique names between each other add
 	 * them temporarily to the end of the original seqbase. (bug 25932)
@@ -3267,7 +3267,7 @@ static int sequencer_paste_exec(bContext *C, wmOperator *UNUSED(op))
 	ED_sequencer_deselect_all(scene);
 	ofs = scene->r.cfra - seqbase_clipboard_frame;
 
-	BKE_sequence_base_dupli_recursive(scene, NULL, &nseqbase, &seqbase_clipboard, SEQ_DUPE_UNIQUE_NAME);
+	BKE_sequence_base_dupli_recursive(scene, scene, &nseqbase, &seqbase_clipboard, SEQ_DUPE_UNIQUE_NAME, 0);
 
 	/* transform pasted strips before adding */
 	if (ofs) {
diff --git a/source/blender/editors/space_sequencer/space_sequencer.c b/source/blender/editors/space_sequencer/space_sequencer.c
index a2a80297041..f1d0f23f8af 100644
--- a/source/blender/editors/space_sequencer/space_sequencer.c
+++ b/source/blender/editors/space_sequencer/space_sequencer.c
@@ -435,6 +435,7 @@ static void sequencer_dropboxes(void)
 
 /* ************* end drop *********** */
 
+/* DO NOT make this static, this hides the symbol and breaks API generation script. */
 const char *sequencer_context_dir[] = {"edit_mask", NULL};
 
 static int sequencer_context(const bContext *C, const char *member, bContextDataResult *result)
diff --git a/source/blender/editors/space_text/text_format_pov.c b/source/blender/editors/space_text/text_format_pov.c
index 0d19c503798..1ef3322711c 100644
--- a/source/blender/editors/space_text/text_format_pov.c
+++ b/source/blender/editors/space_text/text_format_pov.c
@@ -49,36 +49,38 @@ static int txtfmt_pov_find_keyword(const char *string)
 {
 	int i, len;
 	/* Language Directives */
-	if      (STR_LITERAL_STARTSWITH(string, "append",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "break",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "case",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "debug",       len)) i = len;
+	if      (STR_LITERAL_STARTSWITH(string, "deprecated",  len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "persistent",  len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "statistics",  len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "version",     len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "warning",     len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "declare",     len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "default",     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "deprecated",  len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "include",     len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "append",      len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "elseif",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "debug",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "break",  	   len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "else",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "end",         len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "error",       len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "fclose",      len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "fopen",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "for",         len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "ifndef",      len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "ifdef",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "if",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "include",     len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "patch",       len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "local",       len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "macro",       len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "range",       len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "read",        len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "render",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "statistics",  len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "switch",      len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "undef",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "version",     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "warning",     len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "while",       len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "write",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "case",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "end",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "for",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "if",          len)) i = len;
 	else                                                         i = 0;
 
 	/* If next source char is an identifier (eg. 'i' in "definate") no match */
@@ -92,221 +94,275 @@ static int txtfmt_pov_find_reserved_keywords(const char *string)
 	 * list is from...
 	 * http://www.povray.org/documentation/view/3.7.0/212/
 	 */
+
+	/* Float Functions */
+	if 		(STR_LITERAL_STARTSWITH(string, "conserve_energy",    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "max_intersections",  len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "dimension_size",     len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "bitwise_and",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "bitwise_or",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "bitwise_xor",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "file_exists",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "precompute",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "dimensions",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "clipped_by",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "shadowless",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "turb_depth",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "reciprocal",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "quaternion",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "phong_size",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "tesselate",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "save_file",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "load_file",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "max_trace",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "transform",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "translate",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "direction",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "roughness",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "metallic",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "gts_load",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "gts_save",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "location",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "altitude",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "function",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "evaluate",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "inverse",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "collect",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "target",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "albedo",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "rotate",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "matrix",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "look_at",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "jitter",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "angle",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "right",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "scale",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "child",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "crand",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "blink",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "defined",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "degrees",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "inside",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "radians",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "vlength",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "select",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "floor",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "strcmp",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "strlen",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "tessel",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sturm",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "abs",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "acosh",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "prod",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "with",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "acos",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "asc",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "asinh",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "asin",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "atan2",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "atand",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "atanh",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "atan",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "ceil",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "warp",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "cosh",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "log",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "max",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "min",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "mod",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "pow",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "rand",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "seed",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "form",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sinh",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sqrt",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "tanh",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "vdot",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sin",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sqr",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sum",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "pwr",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "tan",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "val",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "cos",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "div",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "exp",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "int",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sky",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "up",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "ln",                 len)) i = len;
+	/* Color Identifiers */
+	else if (STR_LITERAL_STARTSWITH(string, "transmit",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "filter",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "srgbft",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "srgbf",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "srgbt",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "rgbft",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "gamma",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "green",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "blue",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "gray",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "srgb",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sRGB",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "SRGB",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "rgbf",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "rgbt",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "rgb",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "red",                 len)) i = len;
+	/* Color Spaces */
+	else if (STR_LITERAL_STARTSWITH(string, "pov",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "hsl",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "hsv",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "xyl",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "xyv",                 len)) i = len;
+	/* Vector Functions */
+	else if (STR_LITERAL_STARTSWITH(string, "vaxis_rotate",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "vturbulence",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "min_extent",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "vnormalize",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "max_extent",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "vrotate",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "vcross",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "trace",              len)) i = len;
+	/* String Functions */
+	else if (STR_LITERAL_STARTSWITH(string, "file_time",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "datetime",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "concat",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "strlwr",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "strupr",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "substr",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "vstr",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "chr",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "str",                len)) i = len;
+	else                                                                i = 0;
+
+	/* If next source char is an identifier (eg. 'i' in "definate") no match */
+	return (i == 0 || text_check_identifier(string[i])) ? -1 : i;
+}
+
+
+static int txtfmt_pov_find_reserved_builtins(const char *string)
+{
+	int i, len;
+
+	/* POV-Ray Built-in Variables
+	 * list is from...
+	 * http://www.povray.org/documentation/view/3.7.0/212/
+	 */
 	/* Language Keywords */
-	if      (STR_LITERAL_STARTSWITH(string, "aa_level",            len)) i = len;
+	if      (STR_LITERAL_STARTSWITH(string, "reflection_exponent", len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "area_illumination",   len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "all_intersections",   len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "cutaway_textures",    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "smooth_triangle",     len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "lommel_seeliger",     len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "falloff_angle",       len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "aa_threshold",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "hypercomplex",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "major_radius",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "max_distance",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "max_iteration",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "colour_space",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "color_space",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "iridescence",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "subsurface",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "scattering",          len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "absorption",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "accuracy",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "adc_bailout",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "albedo",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "all_intersections",   len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "translucency",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "all",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "alpha",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "altitude",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "always_sample",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "ambient_light",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "ambient",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "angle",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "aperture",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "water_level",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "reflection",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "max_extent",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "oren_nayar",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "refraction",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "hierarchy",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "radiosity",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "tolerance",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "interior",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "toroidal",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "emission",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "material",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "internal",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "photons",             len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "arc_angle",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "area_light",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "area_illumination",   len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "minnaert",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "texture",             len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "array",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "assumed_gamma",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "autostop",            len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "black_hole",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "blur_samples",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "brightness",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "brilliance",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "caustics",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "charset",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "collect",             len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "component",           len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "composite",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "confidence",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "conserve_energy",     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "contained_by",        len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "coords",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "count",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "crand",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "cube",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "cutaway_textures",    len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "diffuse",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "direction",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "dispersion_samples",  len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "dispersion",          len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "dist_exp",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "distance",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "eccentricity",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "emission",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "error_bound",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "evaluate",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "expand_thresholds",   len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "exponent",            len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "exterior",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "extinction",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "face_indices",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "falloff_angle",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "falloff",             len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "file_gamma",          len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "flatness",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "planet",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "screw",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "keep",                len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "flip",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "focal_point",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "fog_alt",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "fog_offset",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "fog_type",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "form",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "fresnel",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "function",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "gamma",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "gather",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "global_settings",     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "gray_threshold",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "hf_gray_16",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "hierarchy",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "hypercomplex",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "importance",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "inside_vector",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "internal",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "intervals",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "ior",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "irid_wavelength",     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "irid",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "load_file",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "location",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "move",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "roll",                len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "look_at",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "looks_like",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "low_error_factor",    len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "major_radius",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "max_distance",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "max_extent",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "max_gradient",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "max_intersections",   len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "max_iteration",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "max_sample",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "max_trace_level",     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "max_trace",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "maximum_reuse",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "metallic",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "method",              len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "metric",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "minimum_reuse",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "nearest_count",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "normal_indices",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "normal_vectors",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "now",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "number_of_waves",     len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "offset",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "open",                len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "orientation",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "pass_through",        len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "pattern",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "phong_size",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "phong",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "point_at",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "pot",                 len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "precision",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "precompute",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "pretrace_end",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "pretrace_start",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "prod",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "pwr",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "quaternion",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "radiosity",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "radius",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "ratio",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "reciprocal",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "recursion_limit",     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "reflection_exponent", len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "reflection",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "refraction",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "width",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "repeat",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "right",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "roughness",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "samples",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "save_file",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "scattering",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "bend",                len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "size",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sky",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "alpha",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "slice",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "smooth",              len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "solid",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "spacing",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "specular",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "split_union",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "spotlight",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "strength",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sturm",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sum",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "target",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "texture_list",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "thickness",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "threshold",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "tightness",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "tolerance",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "toroidal",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "ttf",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "turb_depth",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "all",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "now",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "pot",                 len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "type",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "u_steps",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "up",                  len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "use_alpha",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "uv_indices",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "uv_vectors",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "v_steps",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "variance",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "vertex_vectors",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "water_level",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "width",               len)) i = len;
-
-	else                                                                 i = 0;
-
-	/* If next source char is an identifier (eg. 'i' in "definate") no match */
-	return (i == 0 || text_check_identifier(string[i])) ? -1 : i;
-}
-
-
-static int txtfmt_pov_find_reserved_builtins(const char *string)
-{
-	int i, len;
-
-	/* POV-Ray Built-in Variables
-	 * list is from...
-	 * http://www.povray.org/documentation/view/3.7.0/212/
-	 */
-	if      (STR_LITERAL_STARTSWITH(string, "clock_delta",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "clock",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "clock_on",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "final_clock",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "final_frame",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "frame_number",        len)) i = len;
+	/* Animation Options */
+	else if (STR_LITERAL_STARTSWITH(string, "global_settings",     len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "input_file_name",     len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "initial_clock",       len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "initial_frame",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "frame_number",        len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "image_height",        len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "image_width",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "input_file_name",     len)) i = len;
-	/* Color Identifiers */
-	else if (STR_LITERAL_STARTSWITH(string, "blue",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "filter",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "gray",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "green",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "red",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "rgbft",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "rgbf",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "rgbt",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "rgb",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "srgb",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sRGB",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "SRGB",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "srgbft",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "srgbf",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "srgbt",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "transmit",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "final_clock",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "final_frame",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "clock_delta",     	   len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "clock_on",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "clock",               len)) i = len;
+	/* Spline Identifiers */
+	else if (STR_LITERAL_STARTSWITH(string, "extended_x_spline",   len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "general_x_spline",    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "quadratic_spline",    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "basic_x_spline",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "natural_spline",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "linear_spline",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "bezier_spline",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "akima_spline",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "cubic_spline",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sor_spline",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "tcb_spline",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "linear_sweep",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "conic_sweep",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "b_spline",            len)) i = len;
 	/* Patterns */
-	else if (STR_LITERAL_STARTSWITH(string, "agate",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "aoi",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "pigment_pattern",     len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "image_pattern",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "density_file",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "cylindrical",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "proportion",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "triangular",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "image_map",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "proximity",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "spherical",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "bump_map",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "wrinkles",            len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "average",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "voronoi",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "masonry",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "binary",              len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "boxed",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "bozo",                len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "brick",               len)) i = len;
@@ -315,14 +371,11 @@ static int txtfmt_pov_find_reserved_builtins(const char *string)
 	else if (STR_LITERAL_STARTSWITH(string, "checker",             len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "crackle",             len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "cubic",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "cylindrical",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "density_file",        len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "dents",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "facets",              len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "gradient",            len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "granite",             len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "hexagon",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "image_pattern",       len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "julia",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "leopard",             len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "magnet",              len)) i = len;
@@ -330,13 +383,11 @@ static int txtfmt_pov_find_reserved_builtins(const char *string)
 	else if (STR_LITERAL_STARTSWITH(string, "marble",              len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "onion",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "pavement",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "pigment_pattern",     len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "planar",              len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "quilted",             len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "radial",              len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "ripples",             len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "slope",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "spherical",           len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "spiral1",             len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "spiral2",             len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "spotted",             len)) i = len;
@@ -344,97 +395,68 @@ static int txtfmt_pov_find_reserved_builtins(const char *string)
 	else if (STR_LITERAL_STARTSWITH(string, "tile2",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "tiling",              len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "tiles",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "triangular",          len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "waves",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "wood",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "wrinkles",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "agate",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "aoi",                 len)) i = len;
 	/* Objects */
-	else if (STR_LITERAL_STARTSWITH(string, "background",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "superellipsoid",      len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "bicubic_patch",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "blob",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "box",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "camera",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "cone",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "cubic",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "julia_fractal",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "height_field",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "cubic_spline",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sphere_sweep",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "light_group",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "light_source",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "intersection",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "isosurface",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "background",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sky_sphere",          len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "cylinder",            len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "difference",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "brilliance",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "parametric",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "interunion",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "intermerge",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "polynomial",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "displace",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "specular",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "ambient",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "diffuse",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "polygon",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "quadric",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "quartic",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "rainbow",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sphere",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "spline",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "prism",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "camera",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "galley",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "cubic",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "phong",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "cone",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "blob",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "box",                 len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "disc",                len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "fog",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "height_field",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "intersection",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "isosurface",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "julia_fractal",       len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "lathe",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "light_group",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "light_source",        len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "merge",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "mesh2",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "mesh",                len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "object",              len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "ovus",                len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "lemon",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "parametric",          len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "plane",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "poly",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "polygon",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "polynomial",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "prism",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "quadric",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "quartic",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "rainbow",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sky_sphere",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "smooth_triangle",     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "cubic_spline",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sphere_sweep",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sphere",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "spline",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "superellipsoid",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "irid",                len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "sor",                 len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "text",                len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "torus",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "triangle",            len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "union",               len)) i = len;
-	/* Filetypes */
-	else if (STR_LITERAL_STARTSWITH(string, "df3",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "exr",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "gif",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "hdr",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "iff",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "jpeg",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "pgm",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "png",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "ppm",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sys",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "tga",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "tiff",                len)) i = len;
-	/* Spline Identifiers */
-	else if (STR_LITERAL_STARTSWITH(string, "b_spline",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "bezier_spline",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "conic_sweep",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "cubic_spline",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "linear_spline",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "linear_sweep",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "natural_spline",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "quadratic_spline",    len)) i = len;
-	/* Encodings */
-	else if (STR_LITERAL_STARTSWITH(string, "ascii",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "utf8",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "uint8",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "uint16be",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "uint16le",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sint8",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sint16be",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sint16le",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sint32be",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sint32le",            len)) i = len;
-	/* Camera Types */
-	else if (STR_LITERAL_STARTSWITH(string, "fisheye",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "mesh_camera",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "omnimax",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "orthographic",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "panoramic",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "perspective",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "ultra_wide_angle",    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "colour",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "color",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "media",               len)) i = len;
 	/* Built-in Vectors */
 	else if (STR_LITERAL_STARTSWITH(string, "t",                   len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "u",                   len)) i = len;
@@ -442,7 +464,6 @@ static int txtfmt_pov_find_reserved_builtins(const char *string)
 	else if (STR_LITERAL_STARTSWITH(string, "x",                   len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "y",                   len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "z",                   len)) i = len;
-
 	else                                                                 i = 0;
 
 	/* If next source char is an identifier (eg. 'i' in "definate") no match */
@@ -465,156 +486,201 @@ static int txtfmt_pov_find_specialvar(const char *string)
 {
 	int i, len;
 	/* Modifiers */
-	if      (STR_LITERAL_STARTSWITH(string, "interior_texture",   len)) i = len;
+	if 		(STR_LITERAL_STARTSWITH(string, "dispersion_samples", len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "projected_through",  len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "double_illuminate",  len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "expand_thresholds",  len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "media_interaction",  len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "media_attenuation",  len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "projected_through",  len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "low_error_factor",   len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "recursion_limit",    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "interior_texture",   len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "max_trace_level",    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "gray_threshold",     len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "pretrace_start",     len)) i = len;
+	else if	(STR_LITERAL_STARTSWITH(string, "normal_indices",     len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "normal_vectors",     len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "vertex_vectors",     len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "noise_generator",    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "irid_wavelength",    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "number_of_waves",    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "ambient_light",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "inside_vector",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "face_indices",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "texture_list",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "max_gradient",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "uv_indices",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "uv_vectors",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "fade_distance",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "global_lights",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "no_bump_scale",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "pretrace_end",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "no_radiosity",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "no_reflection",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "assumed_gamma",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "scallop_wave",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "triangle_wave",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "nearest_count",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "maximum_reuse",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "minimum_reuse",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "always_sample",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "translucency",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "eccentricity",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "contained_by",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "inside_point",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "adc_bailout",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "density_map",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "split_union",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "mm_per_unit",        len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "agate_turb",         len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "bounded_by",         len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "brick_size",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "bump_map",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "bump_size",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "circular",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "clipped_by",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "cubic",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "hf_gray_16",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "dispersion",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "extinction",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "thickness",          len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "color_map",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "color",              len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "colour_map",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "colour",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "control0",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "control1",           len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "cubic_wave",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "density_map",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "density",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "fade_color",         len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "fade_colour",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "fade_distance",      len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "fade_power",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "frequency",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "global_lights",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "hollow",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "image_map",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "adaptive",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "interior",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "interpolate",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "inverse",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "jitter",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "lambda",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "map_type",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "material_map",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "material",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "matrix",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "media",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "mm_per_unit",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "mortar",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "no_bump_scale",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "no_image",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "no_radiosity",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "no_reflection",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "no_shadow",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "fade_color",         len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "normal_map",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "normal",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "octaves",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "omega",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "once",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "orient",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "parallel",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "phase",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "photons",            len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "pigment_map",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "pigment",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "finish",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "poly_wave",          len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "quick_color",        len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "quick_colour",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "ramp_wave",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "rotate",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "scale",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "scallop_wave",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "shadowless",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sine_wave",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "slope_map",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "subsurface",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "material_map",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "pass_through",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "interpolate",        len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "texture_map",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "texture",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "transform",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "translate",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "triangle_wave",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "turbulence",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "error_bound",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "brightness",         len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "use_color",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "use_alpha",          len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "use_colour",         len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "use_index",          len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "uv_mapping",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "warp",               len)) i = len;
-
-	/* Vector Functions */
-	else if (STR_LITERAL_STARTSWITH(string, "max_extent",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "min_extent",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "trace",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "vaxis_rotate",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "vcross",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "vnormalize",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "vrotate",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "vturbulence",        len)) i = len;
-	/* String Functions */
-	else if (STR_LITERAL_STARTSWITH(string, "chr",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "concat",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "datetime",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "str",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "strlwr",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "strupr",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "substr",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "vstr",               len)) i = len;
-	/* Float Functions */
-	else if (STR_LITERAL_STARTSWITH(string, "abs",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "acosh",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "acos",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "asc",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "asinh",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "asin",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "atan2",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "atand",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "atanh",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "atan",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "bitwise_and",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "bitwise_or",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "bitwise_xor",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "ceil",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "cosh",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "cos",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "defined",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "degrees",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "dimension_size",     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "dimensions",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "div",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "exp",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "file_exists",        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "floor",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "inside",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "int",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "ln",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "log",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "max",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "min",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "mod",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "pow",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "radians",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "rand",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "seed",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "select",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sinh",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sin",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sqrt",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "sqr",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "strcmp",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "strlen",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "tanh",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "tan",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "val",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "vdot",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "vlength",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "importance",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "max_sample",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "intervals",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sine_wave",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "slope_map",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "poly_wave",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "no_shadow",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "ramp_wave",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "precision",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "original",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "accuracy",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "map_type",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "no_image",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "distance",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "autostop",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "caustics",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "octaves",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "aa_level", 		  len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "frequency",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "fog_offset",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "modulation",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "outbound",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "no_cache",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "pigment",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "charset",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "inbound",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "outside",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "inner",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "turbulence",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "threshold",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "accuracy",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "polarity",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "bump_size",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "circular",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "control0",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "control1",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "maximal",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "minimal",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "fog_type",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "fog_alt",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "samples",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "origin",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "amount",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "adaptive",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "exponent",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "strength",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "density",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "fresnel",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "albinos",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "finish",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "method",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "omega",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "fixed",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "spacing",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "u_steps",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "v_steps",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "offset",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "hollow",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "gather",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "lambda",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "mortar",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "cubic",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "count",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "once",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "orient",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "normal",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "phase",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "ratio",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "open",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "ior",                len)) i = len;
+	/* Light Types and options*/
+	else if (STR_LITERAL_STARTSWITH(string, "area_light",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "looks_like",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "fade_power",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "tightness",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "spotlight",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "parallel",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "point_at",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "falloff",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "radius",             len)) i = len;
+	/* Camera Types and options*/
+	else if (STR_LITERAL_STARTSWITH(string, "omni_directional_stereo",  len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "lambert_cylindrical",		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "miller_cylindrical", 		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "lambert_azimuthal",  		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "ultra_wide_angle",   		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "camera_direction",   		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "camera_location ",   		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "van_der_grinten",    		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "aitoff_hammer",   	  		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "smyth_craster",   	  		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "orthographic",       		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "camera_right",       		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "blur_samples",       		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "plate_carree",       		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "camera_type",        		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "perspective",        		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "mesh_camera",        		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "focal_point",        		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "balthasart",         		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "confidence",         		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "parallaxe",          		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "hobo_dyer",          		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "camera_up",          		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "panoramic",          		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "eckert_vi",   	  	  		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "eckert_iv",   	  	  		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "mollweide",   	  	  		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "aperture",           		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "behrmann",           		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "variance",           		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "stereo",             		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "icosa",           	  		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "tetra",           	  		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "octa",           	  		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "mercator",   		  		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "omnimax",            		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "fisheye",            		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "edwards",            		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "peters",             		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "gall",            	  		len)) i = len;
 	else                                                                i = 0;
 
 	/* If next source char is an identifier (eg. 'i' in "definate") no match */
@@ -625,15 +691,43 @@ static int txtfmt_pov_find_bool(const char *string)
 {
 	int i, len;
 	/*Built-in Constants*/
-	if      (STR_LITERAL_STARTSWITH(string, "false",   len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "no",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "off",     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "true",    len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "yes",     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "on",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "pi",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "tau",     len)) i = len;
-	else                                                     i = 0;
+	if      (STR_LITERAL_STARTSWITH(string, "unofficial",   len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "false",   		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "no",      		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "off",     		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "true",    		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "yes",     		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "on",      		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "pi",      		len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "tau",     		len)) i = len;
+	/* Encodings */
+	else if (STR_LITERAL_STARTSWITH(string, "sint16be",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sint16le",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sint32be",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sint32le",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "uint16be",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "uint16le",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "bt2020",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "bt709",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sint8",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "uint8",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "ascii",               len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "utf8",                len)) i = len;
+	/* Filetypes */
+	else if (STR_LITERAL_STARTSWITH(string, "tiff",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "df3",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "exr",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "gif",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "hdr",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "iff",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "jpeg",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "pgm",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "png",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "ppm",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "sys",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "tga",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "ttf",                 len)) i = len;
+	else                                                                 i = 0;
 
 	/* If next source char is an identifier (eg. 'i' in "Nonetheless") no match */
 	return (i == 0 || text_check_identifier(string[i])) ? -1 : i;
@@ -645,7 +739,7 @@ static char txtfmt_pov_format_identifier(const char *str)
 	if      ((txtfmt_pov_find_specialvar(str))        != -1) fmt = FMT_TYPE_SPECIAL;
 	else if ((txtfmt_pov_find_keyword(str))           != -1) fmt = FMT_TYPE_KEYWORD;
 	else if ((txtfmt_pov_find_reserved_keywords(str)) != -1) fmt = FMT_TYPE_RESERVED;
-	else if ((txtfmt_pov_find_reserved_builtins(str)) != -1) fmt = FMT_TYPE_RESERVED;
+	else if ((txtfmt_pov_find_reserved_builtins(str)) != -1) fmt = FMT_TYPE_DIRECTIVE;
 	else                                                     fmt = FMT_TYPE_DEFAULT;
 	return fmt;
 }
@@ -770,7 +864,7 @@ static void txtfmt_pov_format_line(SpaceText *st, TextLine *line, const bool do_
 				if      ((i = txtfmt_pov_find_specialvar(str))        != -1) prev = FMT_TYPE_SPECIAL;
 				else if ((i = txtfmt_pov_find_keyword(str))           != -1) prev = FMT_TYPE_KEYWORD;
 				else if ((i = txtfmt_pov_find_reserved_keywords(str)) != -1) prev = FMT_TYPE_RESERVED;
-				else if ((i = txtfmt_pov_find_reserved_builtins(str)) != -1) prev = FMT_TYPE_RESERVED;
+				else if ((i = txtfmt_pov_find_reserved_builtins(str)) != -1) prev = FMT_TYPE_DIRECTIVE;
 
 				if (i > 0) {
 					text_format_fill_ascii(&str, &fmt, prev, i);
diff --git a/source/blender/editors/space_text/text_format_pov_ini.c b/source/blender/editors/space_text/text_format_pov_ini.c
index 719f4e3c036..453dd1d748c 100644
--- a/source/blender/editors/space_text/text_format_pov_ini.c
+++ b/source/blender/editors/space_text/text_format_pov_ini.c
@@ -49,36 +49,36 @@ static int txtfmt_ini_find_keyword(const char *string)
 {
 	int i, len;
 	/* Language Directives */
-	if      (STR_LITERAL_STARTSWITH(string, "append",     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "break",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "case",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "debug",      len)) i = len;
+	if      (STR_LITERAL_STARTSWITH(string, "deprecated", len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "statistics", len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "declare",    len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "default",    len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "deprecated", len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "version",    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "warning",    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "include",    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "fclose",     len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "ifndef",     len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "append",     len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "elseif",     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "else",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "end",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "debug",      len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "error",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "fclose",     len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "fopen",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "for",        len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "ifdef",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "ifndef",     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "if",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "include",    len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "local",      len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "macro",      len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "range",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "read",       len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "render",     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "statistics", len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "break",      len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "switch",     len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "undef",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "version",    len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "warning",    len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "while",      len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "write",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "case",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "else",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "read",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "end",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "for",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "if",         len)) i = len;
 
 	else if (STR_LITERAL_STARTSWITH(string, "I",          len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "S",          len)) i = len;
@@ -104,29 +104,54 @@ static int txtfmt_ini_find_reserved(const char *string)
 	 * list is from...
 	 * http://www.povray.org/documentation/view/3.7.0/212/
 	 */
-	     if (STR_LITERAL_STARTSWITH(string, "Antialias_Threshold",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Bounding_Method",              len)) i = len;
+	     if (STR_LITERAL_STARTSWITH(string, "RenderCompleteSoundEnabled",   len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Create_Continue_Trace_Log",    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "ParseErrorSoundEnabled",       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "RenderErrorSoundEnabled",      len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "HideWhenMainMinimized",        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Antialias_Confidence",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "RenderCompleteSound",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "ParseErrorSound",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "RenderErrorSound",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "UseExtensions",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "ReadWriteSourceDir",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "NormalPositionLeft",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "NormalPositionTop",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "NormalPositionRight",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "NormalPositionBottom",         len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Pre_Scene_Command",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Pre_Frame_Command",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Post_Scene_Command",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Post_Frame_Command",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "User_Abort_Command",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Fatal_Error_Command",          len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "NormalPositionX",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "NormalPositionY",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Pre_Scene_Return",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Pre_Frame_Return",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Post_Scene_Return",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Post_Frame_Return",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "User_Abort_Return",            len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Fatal_Error_Return",           len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Antialias_Threshold",          len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Antialias_Gamma",              len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Antialias_Depth",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "clock_delta",                  len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "clock_on",                     len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "clock",                        len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "final_clock",                  len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "final_frame",                  len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "frame_number",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "initial_clock",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "initial_frame",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "image_height",                 len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "image_width",                  len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "input_file_name",              len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Subset_Start_Frame",           len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Subset_End_Frame",             len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "UseToolbar",                   len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "UseTooltips",                  len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Frame_Step",                   len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Cyclic_Animation",             len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Field_Render",                 len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Odd_Field",                    len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Height",                       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Width",                        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "final_clock",                  len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "final_frame",                  len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "frame_number",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "initial_clock",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "initial_frame",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "image_height",                 len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "image_width",                  len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Start_Column",                 len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Start_Row",                    len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "End_Column",                   len)) i = len;
@@ -134,7 +159,7 @@ static int txtfmt_ini_find_reserved(const char *string)
 	else if (STR_LITERAL_STARTSWITH(string, "Test_Abort_Count",             len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Test_Abort",                   len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Continue_Trace",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Create_Continue_Trace_Log",    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Bounding_Method",              len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Create_Ini",                   len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Display_Gamma",                len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Display",                      len)) i = len;
@@ -151,19 +176,6 @@ static int txtfmt_ini_find_reserved(const char *string)
 	else if (STR_LITERAL_STARTSWITH(string, "Bits_Per_Color",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Compression",                  len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Dither_Method",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Dither",                       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Pre_Scene_Command",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Pre_Frame_Command",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Post_Scene_Command",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Post_Frame_Command",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "User_Abort_Command",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Fatal_Error_Command",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Pre_Scene_Return",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Pre_Frame_Return",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Post_Scene_Return",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Post_Frame_Return",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "User_Abort_Return",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Fatal_Error_Return",           len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Include_Header",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Library_Path",                 len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Debug_Console",                len)) i = len;
@@ -187,7 +199,9 @@ static int txtfmt_ini_find_reserved(const char *string)
 	else if (STR_LITERAL_STARTSWITH(string, "Remove_Bounds",                len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Split_Unions",                 len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Antialias",                    len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Glare_Desaturation",           len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Sampling_Method",              len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Stochastic_Seed",              len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Jitter_Amount",                len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Jitter",                       len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Antialias_Depth",              len)) i = len;
@@ -221,25 +235,14 @@ static int txtfmt_ini_find_reserved(const char *string)
 	else if (STR_LITERAL_STARTSWITH(string, "Band3Width",                   len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Band4Width",                   len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "ShowCmd",                      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "NormalPositionLeft",           len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "NormalPositionTop",            len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "NormalPositionRight",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "NormalPositionBottom",         len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "UseToolbar",                   len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "UseTooltips",                  len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "NormalPositionX",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "NormalPositionY",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Flags",                        len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Transparency",                 len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Use8BitMode",                  len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "MakeActive",                   len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "KeepAboveMain",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "HideWhenMainMinimized",        len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "AutoClose",                    len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "PreserveBitmap",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "FontSize",                     len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "FontWeight",                   len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "Font",                         len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "KeepMessages",                 len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "AlertSound",                   len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Completion",                   len)) i = len;
@@ -250,14 +253,6 @@ static int txtfmt_ini_find_reserved(const char *string)
 	else if (STR_LITERAL_STARTSWITH(string, "PreventSleep",                 len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "NoShelloutWait",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "SystemNoActive",               len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "RenderCompleteSoundEnabled",   len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "ParseErrorSoundEnabled",       len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "RenderErrorSoundEnabled",      len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "RenderCompleteSound",          len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "ParseErrorSound",              len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "RenderErrorSound",             len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "UseExtensions",                len)) i = len;
-	else if (STR_LITERAL_STARTSWITH(string, "ReadWriteSourceDir",           len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "NoShellOuts",                  len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "VideoSource",                  len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "SceneFile",                    len)) i = len;
@@ -269,6 +264,14 @@ static int txtfmt_ini_find_reserved(const char *string)
 	else if (STR_LITERAL_STARTSWITH(string, "RenderwinClose",               len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Append_File",                  len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "Warning Level",                len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "clock_delta",                  len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "clock_on",                     len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "clock",                        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Height",                       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Width",                        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Dither",                       len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Flags",                        len)) i = len;
+	else if (STR_LITERAL_STARTSWITH(string, "Font",                         len)) i = len;
 	/* Filetypes */
 	else if (STR_LITERAL_STARTSWITH(string, "df3",                          len)) i = len;
 	else if (STR_LITERAL_STARTSWITH(string, "exr",                          len)) i = len;
diff --git a/source/blender/editors/space_time/space_time.c b/source/blender/editors/space_time/space_time.c
index 15eb154c757..f29d2b30ffe 100644
--- a/source/blender/editors/space_time/space_time.c
+++ b/source/blender/editors/space_time/space_time.c
@@ -329,6 +329,8 @@ static void time_draw_idblock_keyframes(View2D *v2d, ID *id, short onlysel)
 		case ID_CF:
 			cachefile_to_keylist(&ads, (CacheFile *)id, &keys, NULL);
 			break;
+		default:
+			break;
 	}
 		
 	/* build linked-list for searching */
diff --git a/source/blender/editors/space_view3d/drawobject.c b/source/blender/editors/space_view3d/drawobject.c
index 73fd77db477..5f01092f5b0 100644
--- a/source/blender/editors/space_view3d/drawobject.c
+++ b/source/blender/editors/space_view3d/drawobject.c
@@ -8457,8 +8457,8 @@ void draw_object_backbufsel(Scene *scene, View3D *v3d, RegionView3D *rv3d, Objec
 			else {
 				Mesh *me = ob->data;
 				if ((me->editflag & ME_EDIT_PAINT_VERT_SEL) &&
-				    /* currently vertex select only supports weight paint */
-				    (ob->mode & OB_MODE_WEIGHT_PAINT))
+				    /* currently vertex select supports weight paint and vertex paint*/
+				    ((ob->mode & OB_MODE_WEIGHT_PAINT) || (ob->mode & OB_MODE_VERTEX_PAINT)))
 				{
 					bbs_mesh_solid_verts(scene, ob);
 				}
diff --git a/source/blender/editors/space_view3d/space_view3d.c b/source/blender/editors/space_view3d/space_view3d.c
index b8228c63209..996506a9cf7 100644
--- a/source/blender/editors/space_view3d/space_view3d.c
+++ b/source/blender/editors/space_view3d/space_view3d.c
@@ -1412,33 +1412,31 @@ static void view3d_id_remap(ScrArea *sa, SpaceLink *slink, ID *old_id, ID *new_i
 				}
 			}
 		}
-		if ((ID *)v3d->ob_centre == old_id) {
-			v3d->ob_centre = (Object *)new_id;
-			if (new_id == NULL) {  /* Otherwise, bonename may remain valid... We could be smart and check this, too? */
-				v3d->ob_centre_bone[0] = '\0';
-			}
-		}
 
-		if ((ID *)v3d->defmaterial == old_id) {
-			v3d->defmaterial = (Material *)new_id;
-		}
-#if 0  /* XXX Deprecated? */
-		if ((ID *)v3d->gpd == old_id) {
-			v3d->gpd = (bGPData *)new_id;
-		}
-#endif
+		/* Values in local-view aren't used, see: T52663 */
+		if (is_local == false) {
+			/* Skip 'v3d->defmaterial', it's not library data.  */
 
-		if (ELEM(GS(old_id->name), ID_IM, ID_MC)) {
-			for (BGpic *bgpic = v3d->bgpicbase.first; bgpic; bgpic = bgpic->next) {
-				if ((ID *)bgpic->ima == old_id) {
-					bgpic->ima = (Image *)new_id;
-					id_us_min(old_id);
-					id_us_plus(new_id);
+			if ((ID *)v3d->ob_centre == old_id) {
+				v3d->ob_centre = (Object *)new_id;
+				/* Otherwise, bonename may remain valid... We could be smart and check this, too? */
+				if (new_id == NULL) {
+					v3d->ob_centre_bone[0] = '\0';
 				}
-				if ((ID *)bgpic->clip == old_id) {
-					bgpic->clip = (MovieClip *)new_id;
-					id_us_min(old_id);
-					id_us_plus(new_id);
+			}
+
+			if (ELEM(GS(old_id->name), ID_IM, ID_MC)) {
+				for (BGpic *bgpic = v3d->bgpicbase.first; bgpic; bgpic = bgpic->next) {
+					if ((ID *)bgpic->ima == old_id) {
+						bgpic->ima = (Image *)new_id;
+						id_us_min(old_id);
+						id_us_plus(new_id);
+					}
+					if ((ID *)bgpic->clip == old_id) {
+						bgpic->clip = (MovieClip *)new_id;
+						id_us_min(old_id);
+						id_us_plus(new_id);
+					}
 				}
 			}
 		}
diff --git a/source/blender/editors/space_view3d/view3d_draw.c b/source/blender/editors/space_view3d/view3d_draw.c
index 250e6559b8f..56508ea989a 100644
--- a/source/blender/editors/space_view3d/view3d_draw.c
+++ b/source/blender/editors/space_view3d/view3d_draw.c
@@ -2471,6 +2471,7 @@ static void view3d_draw_depth_loop(Scene *scene, ARegion *ar, View3D *v3d)
 
 void ED_view3d_draw_depth(Scene *scene, ARegion *ar, View3D *v3d, bool alphaoverride)
 {
+	struct bThemeState theme_state;
 	RegionView3D *rv3d = ar->regiondata;
 	short zbuf = v3d->zbuf;
 	short flag = v3d->flag;
@@ -2483,6 +2484,10 @@ void ED_view3d_draw_depth(Scene *scene, ARegion *ar, View3D *v3d, bool alphaover
 	U.glalphaclip = alphaoverride ? 0.5f : glalphaclip; /* not that nice but means we wont zoom into billboards */
 	U.obcenter_dia = 0;
 	
+	/* Tools may request depth outside of regular drawing code. */
+	UI_Theme_Store(&theme_state);
+	UI_SetTheme(SPACE_VIEW3D, RGN_TYPE_WINDOW);
+
 	/* Setup view matrix. */
 	ED_view3d_draw_setup_view(NULL, scene, ar, v3d, rv3d->viewmat, rv3d->winmat, NULL);
 	
@@ -2510,6 +2515,8 @@ void ED_view3d_draw_depth(Scene *scene, ARegion *ar, View3D *v3d, bool alphaover
 	U.glalphaclip = glalphaclip;
 	v3d->flag = flag;
 	U.obcenter_dia = obcenter_dia;
+
+	UI_Theme_Restore(&theme_state);
 }
 
 void ED_view3d_draw_select_loop(
@@ -2592,7 +2599,7 @@ static void gpu_render_lamp_update(Scene *scene, View3D *v3d,
 		if (layers &&
 		    GPU_lamp_has_shadow_buffer(lamp) &&
 		    /* keep last, may do string lookup */
-		    GPU_lamp_override_visible(lamp, srl, NULL))
+		    GPU_lamp_visible(lamp, srl, NULL))
 		{
 			shadow = MEM_callocN(sizeof(View3DShadow), "View3DShadow");
 			shadow->lamp = lamp;
diff --git a/source/blender/editors/space_view3d/view3d_edit.c b/source/blender/editors/space_view3d/view3d_edit.c
index 4e3f279e12e..97fcca11962 100644
--- a/source/blender/editors/space_view3d/view3d_edit.c
+++ b/source/blender/editors/space_view3d/view3d_edit.c
@@ -726,10 +726,15 @@ static enum eViewOpsOrbit viewops_orbit_mode(void)
 
 /**
  * Calculate the values for #ViewOpsData
+ *
+ * \param use_ensure_persp: When enabled run #view3d_ensure_persp this may switch out of
+ * camera view when orbiting or switch from ortho to perspective when auto-persp is enabled.
+ * Some operations don't require this (view zoom/pan or ndof where subtle rotation is common
+ * so we don't want it to trigger auto-perspective).
  */
 static void viewops_data_create_ex(
         bContext *C, wmOperator *op, const wmEvent *event,
-        bool switch_from_camera, enum eViewOpsOrbit orbit_mode)
+        bool use_ensure_persp, enum eViewOpsOrbit orbit_mode)
 {
 	ViewOpsData *vod = op->customdata;
 	RegionView3D *rv3d = vod->rv3d;
@@ -750,8 +755,7 @@ static void viewops_data_create_ex(
 		vod->use_dyn_ofs = false;
 	}
 
-	if (switch_from_camera) {
-		/* switch from camera view when: */
+	if (use_ensure_persp) {
 		if (view3d_ensure_persp(vod->v3d, vod->ar)) {
 			/* If we're switching from camera view to the perspective one,
 			 * need to tag viewport update, so camera vuew and borders
@@ -853,10 +857,10 @@ static void viewops_data_create_ex(
 	rv3d->rflag |= RV3D_NAVIGATING;
 }
 
-static void viewops_data_create(bContext *C, wmOperator *op, const wmEvent *event, bool switch_from_camera)
+static void viewops_data_create(bContext *C, wmOperator *op, const wmEvent *event, bool use_ensure_persp)
 {
 	enum eViewOpsOrbit orbit_mode = viewops_orbit_mode();
-	viewops_data_create_ex(C, op, event, switch_from_camera, orbit_mode);
+	viewops_data_create_ex(C, op, event, use_ensure_persp, orbit_mode);
 }
 
 static void viewops_data_free(bContext *C, wmOperator *op)
@@ -1673,7 +1677,7 @@ static int ndof_orbit_invoke(bContext *C, wmOperator *op, const wmEvent *event)
 		viewops_data_alloc(C, op);
 		viewops_data_create_ex(
 		        C, op, event,
-		        viewops_orbit_mode_ex((U.uiflag & USER_ORBIT_SELECTION) != 0, false), false);
+		        false, viewops_orbit_mode_ex((U.uiflag & USER_ORBIT_SELECTION) != 0, false));
 		vod = op->customdata;
 
 		ED_view3d_smooth_view_force_finish(C, vod->v3d, vod->ar);
@@ -1742,7 +1746,7 @@ static int ndof_orbit_zoom_invoke(bContext *C, wmOperator *op, const wmEvent *ev
 		viewops_data_alloc(C, op);
 		viewops_data_create_ex(
 		        C, op, event,
-		        viewops_orbit_mode_ex((U.uiflag & USER_ORBIT_SELECTION) != 0, false), false);
+		        false, viewops_orbit_mode_ex((U.uiflag & USER_ORBIT_SELECTION) != 0, false));
 
 		vod = op->customdata;
 
@@ -4753,13 +4757,20 @@ void ED_view3d_cursor3d_update(bContext *C, const int mval[2])
 		ARegion *ar = CTX_wm_region(C);
 		RegionView3D *rv3d = ar->regiondata;
 
-		float co_curr[2], co_prev[2];
+		if (U.uiflag & USER_LOCK_CURSOR_ADJUST) {
 
-		if ((ED_view3d_project_float_global(ar, fp_prev, co_prev, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK) &&
-		    (ED_view3d_project_float_global(ar, fp_curr, co_curr, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK))
-		{
-			rv3d->ofs_lock[0] += (co_curr[0] - co_prev[0]) / (ar->winx * 0.5f);
-			rv3d->ofs_lock[1] += (co_curr[1] - co_prev[1]) / (ar->winy * 0.5f);
+			float co_curr[2], co_prev[2];
+
+			if ((ED_view3d_project_float_global(ar, fp_prev, co_prev, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK) &&
+			    (ED_view3d_project_float_global(ar, fp_curr, co_curr, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK))
+			{
+				rv3d->ofs_lock[0] += (co_curr[0] - co_prev[0]) / (ar->winx * 0.5f);
+				rv3d->ofs_lock[1] += (co_curr[1] - co_prev[1]) / (ar->winy * 0.5f);
+			}
+		}
+		else {
+			/* Cursor may be outside of the view, prevent it getting 'lost', see: T40353 & T45301 */
+			zero_v2(rv3d->ofs_lock);
 		}
 	}
 
diff --git a/source/blender/editors/space_view3d/view3d_header.c b/source/blender/editors/space_view3d/view3d_header.c
index bf1bdf68619..70caee66b29 100644
--- a/source/blender/editors/space_view3d/view3d_header.c
+++ b/source/blender/editors/space_view3d/view3d_header.c
@@ -350,7 +350,7 @@ void uiTemplateHeader3D(uiLayout *layout, struct bContext *C)
 			PointerRNA meshptr;
 
 			RNA_pointer_create(ob->data, &RNA_Mesh, ob->data, &meshptr);
-			if (ob->mode & (OB_MODE_TEXTURE_PAINT | OB_MODE_VERTEX_PAINT)) {
+			if (ob->mode & (OB_MODE_TEXTURE_PAINT)) {
 				uiItemR(layout, &meshptr, "use_paint_mask", UI_ITEM_R_ICON_ONLY, "", ICON_NONE);
 			}
 			else {
diff --git a/source/blender/editors/space_view3d/view3d_ruler.c b/source/blender/editors/space_view3d/view3d_ruler.c
index aefe30bbe32..714db0db0ff 100644
--- a/source/blender/editors/space_view3d/view3d_ruler.c
+++ b/source/blender/editors/space_view3d/view3d_ruler.c
@@ -48,7 +48,6 @@
 
 #include "ED_screen.h"
 #include "ED_view3d.h"
-#include "ED_transform.h"
 #include "ED_transform_snap_object_context.h"
 #include "ED_space_api.h"
 
diff --git a/source/blender/editors/space_view3d/view3d_view.c b/source/blender/editors/space_view3d/view3d_view.c
index 5c13fd37dda..16b626a5be4 100644
--- a/source/blender/editors/space_view3d/view3d_view.c
+++ b/source/blender/editors/space_view3d/view3d_view.c
@@ -54,6 +54,8 @@
 #include "BIF_gl.h"
 #include "BIF_glutil.h"
 
+#include "UI_resources.h"
+
 #include "GPU_select.h"
 
 #include "WM_api.h"
@@ -812,19 +814,108 @@ bool ED_view3d_boundbox_clip(RegionView3D *rv3d, const BoundBox *bb)
 	return view3d_boundbox_clip_m4(bb, rv3d->persmatob);
 }
 
-float ED_view3d_depth_read_cached(const ViewContext *vc, int x, int y)
+/* -------------------------------------------------------------------- */
+
+/** \name Depth Utilities
+ * \{ */
+
+float ED_view3d_depth_read_cached(const ViewContext *vc, const int mval[2])
 {
 	ViewDepths *vd = vc->rv3d->depths;
 		
-	x -= vc->ar->winrct.xmin;
-	y -= vc->ar->winrct.ymin;
+	int x = mval[0];
+	int y = mval[1];
 
-	if (vd && vd->depths && x > 0 && y > 0 && x < vd->w && y < vd->h)
+	if (vd && vd->depths && x > 0 && y > 0 && x < vd->w && y < vd->h) {
 		return vd->depths[y * vd->w + x];
-	else
-		return 1;
+	}
+	else {
+		BLI_assert(1.0 <= vd->depth_range[1]);
+		return 1.0f;
+	}
+}
+
+bool ED_view3d_depth_read_cached_normal(
+        const ViewContext *vc, const bglMats *mats, const int mval[2],
+        float r_normal[3])
+{
+	/* Note: we could support passing in a radius.
+	 * For now just read 9 pixels. */
+
+	/* pixels surrounding */
+	bool  depths_valid[9] = {false};
+	float coords[9][3] = {{0}};
+
+	ARegion *ar = vc->ar;
+	const ViewDepths *depths = vc->rv3d->depths;
+
+	for (int x = 0, i = 0; x < 2; x++) {
+		for (int y = 0; y < 2; y++) {
+			const int mval_ofs[2] = {mval[0] + (x - 1), mval[1] + (y - 1)};
+
+			const double depth = (double)ED_view3d_depth_read_cached(vc, mval_ofs);
+			if ((depth > depths->depth_range[0]) && (depth < depths->depth_range[1])) {
+				if (ED_view3d_depth_unproject(ar, mats, mval_ofs, depth, coords[i])) {
+					depths_valid[i] = true;
+				}
+			}
+			i++;
+		}
+	}
+
+	const int edges[2][6][2] = {
+	    /* x edges */
+	    {{0, 1}, {1, 2},
+	     {3, 4}, {4, 5},
+	     {6, 7}, {7, 8}},
+	    /* y edges */
+	    {{0, 3}, {3, 6},
+	     {1, 4}, {4, 7},
+	     {2, 5}, {5, 8}},
+	};
+
+	float cross[2][3] = {{0.0f}};
+
+	for (int i = 0; i < 6; i++) {
+		for (int axis = 0; axis < 2; axis++) {
+			if (depths_valid[edges[axis][i][0]] && depths_valid[edges[axis][i][1]]) {
+				float delta[3];
+				sub_v3_v3v3(delta, coords[edges[axis][i][0]], coords[edges[axis][i][1]]);
+				add_v3_v3(cross[axis], delta);
+			}
+		}
+	}
+
+	cross_v3_v3v3(r_normal, cross[0], cross[1]);
+
+	if (normalize_v3(r_normal) != 0.0f) {
+		return true;
+	}
+	else {
+		return false;
+	}
 }
 
+bool ED_view3d_depth_unproject(
+        const ARegion *ar, const bglMats *mats,
+        const int mval[2], const double depth,
+        float r_location_world[3])
+{
+	double p[3];
+	if (gluUnProject(
+	        (double)ar->winrct.xmin + mval[0] + 0.5,
+	        (double)ar->winrct.ymin + mval[1] + 0.5,
+	        depth, mats->modelview, mats->projection, (const GLint *)mats->viewport,
+	        &p[0], &p[1], &p[2]))
+	{
+		copy_v3fl_v3db(r_location_world, p);
+		return true;
+	}
+	return false;
+}
+
+/** \} */
+
 void ED_view3d_depth_tag_update(RegionView3D *rv3d)
 {
 	if (rv3d->depths)
@@ -1117,6 +1208,7 @@ int view3d_opengl_select(
         ViewContext *vc, unsigned int *buffer, unsigned int bufsize, const rcti *input,
         eV3DSelectMode select_mode)
 {
+	struct bThemeState theme_state;
 	Scene *scene = vc->scene;
 	View3D *v3d = vc->v3d;
 	ARegion *ar = vc->ar;
@@ -1161,6 +1253,10 @@ int view3d_opengl_select(
 		}
 	}
 
+	/* Tools may request depth outside of regular drawing code. */
+	UI_Theme_Store(&theme_state);
+	UI_SetTheme(SPACE_VIEW3D, RGN_TYPE_WINDOW);
+
 	/* Re-use cache (rect must be smaller then the cached)
 	 * other context is assumed to be unchanged */
 	if (GPU_select_is_cached()) {
@@ -1213,6 +1309,8 @@ int view3d_opengl_select(
 finally:
 	if (hits < 0) printf("Too many objects in select buffer\n");  /* XXX make error message */
 
+	UI_Theme_Restore(&theme_state);
+
 	return hits;
 }
 
diff --git a/source/blender/editors/space_view3d/view3d_walk.c b/source/blender/editors/space_view3d/view3d_walk.c
index 542dc410bc3..5248a260617 100644
--- a/source/blender/editors/space_view3d/view3d_walk.c
+++ b/source/blender/editors/space_view3d/view3d_walk.c
@@ -49,7 +49,6 @@
 
 #include "ED_screen.h"
 #include "ED_space_api.h"
-#include "ED_transform.h"
 #include "ED_transform_snap_object_context.h"
 
 #include "PIL_time.h" /* smoothview */
@@ -674,16 +673,6 @@ static int walkEnd(bContext *C, WalkInfo *walk)
 	return OPERATOR_CANCELLED;
 }
 
-static bool wm_event_is_last_mousemove(const wmEvent *event)
-{
-	while ((event = event->next)) {
-		if (ELEM(event->type, MOUSEMOVE, INBETWEEN_MOUSEMOVE)) {
-			return false;
-		}
-	}
-	return true;
-}
-
 static void walkEvent(bContext *C, wmOperator *op, WalkInfo *walk, const wmEvent *event)
 {
 	if (event->type == TIMER && event->customdata == walk->timer) {
@@ -736,7 +725,7 @@ static void walkEvent(bContext *C, wmOperator *op, WalkInfo *walk, const wmEvent
 			}
 			else
 #endif
-			if (wm_event_is_last_mousemove(event)) {
+			if (WM_event_is_last_mousemove(event)) {
 				wmWindow *win = CTX_wm_window(C);
 
 #ifdef __APPLE__
diff --git a/source/blender/editors/transform/transform.c b/source/blender/editors/transform/transform.c
index ca6e2267218..c2f04005e83 100644
--- a/source/blender/editors/transform/transform.c
+++ b/source/blender/editors/transform/transform.c
@@ -51,7 +51,7 @@
 #include "BLI_listbase.h"
 #include "BLI_string.h"
 #include "BLI_ghash.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 #include "BLI_memarena.h"
 
 #include "BKE_nla.h"
@@ -2878,7 +2878,9 @@ static void initBend(TransInfo *t)
 	t->flag |= T_NO_CONSTRAINT;
 
 	//copy_v3_v3(t->center, ED_view3d_cursor3d_get(t->scene, t->view));
-	calculateCenterCursor(t, t->center);
+	if ((t->flag & T_OVERRIDE_CENTER) == 0) {
+		calculateCenterCursor(t, t->center);
+	}
 	calculateCenterGlobal(t, t->center, t->center_global);
 
 	t->val = 0.0f;
@@ -8360,8 +8362,15 @@ static void initTimeSlide(TransInfo *t)
 
 		TransData  *td = t->data;
 		for (i = 0; i < t->total; i++, td++) {
-			if (min > *(td->val)) min = *(td->val);
-			if (max < *(td->val)) max = *(td->val);
+			AnimData *adt = (t->spacetype != SPACE_NLA) ? td->extra : NULL;
+			float val = *(td->val);
+			
+			/* strip/action time to global (mapped) time */
+			if (adt)
+				val = BKE_nla_tweakedit_remap(adt, val, NLATIME_CONVERT_MAP);
+			
+			if (min > val) min = val;
+			if (max < val) max = val;
 		}
 
 		if (min == max) {
@@ -8436,25 +8445,38 @@ static void applyTimeSlideValue(TransInfo *t, float sval)
 		 */
 		AnimData *adt = (t->spacetype != SPACE_NLA) ? td->extra : NULL;
 		float cval = t->values[0];
-
-		/* apply NLA-mapping to necessary values */
-		if (adt)
-			cval = BKE_nla_tweakedit_remap(adt, cval, NLATIME_CONVERT_UNMAP);
-
+		
 		/* only apply to data if in range */
 		if ((sval > minx) && (sval < maxx)) {
 			float cvalc = CLAMPIS(cval, minx, maxx);
+			float ival = td->ival;
 			float timefac;
-
+			
+			/* NLA mapping magic here works as follows:
+			 * - "ival" goes from strip time to global time
+			 * - calculation is performed into td->val in global time
+			 *   (since sval and min/max are all in global time)
+			 * - "td->val" then gets put back into strip time
+			 */
+			if (adt) {
+				/* strip to global */
+				ival = BKE_nla_tweakedit_remap(adt, ival, NLATIME_CONVERT_MAP);
+			}
+			
 			/* left half? */
-			if (td->ival < sval) {
-				timefac = (sval - td->ival) / (sval - minx);
+			if (ival < sval) {
+				timefac = (sval - ival) / (sval - minx);
 				*(td->val) = cvalc - timefac * (cvalc - minx);
 			}
 			else {
-				timefac = (td->ival - sval) / (maxx - sval);
+				timefac = (ival - sval) / (maxx - sval);
 				*(td->val) = cvalc + timefac * (maxx - cvalc);
 			}
+			
+			if (adt) {
+				/* global to strip */
+				*(td->val) = BKE_nla_tweakedit_remap(adt, *(td->val), NLATIME_CONVERT_UNMAP);
+			}
 		}
 	}
 }
@@ -8513,9 +8535,11 @@ static void initTimeScale(TransInfo *t)
 
 	/* recalculate center2d to use CFRA and mouse Y, since that's
 	 * what is used in time scale */
-	t->center[0] = t->scene->r.cfra;
-	projectFloatView(t, t->center, center);
-	center[1] = t->mouse.imval[1];
+	if ((t->flag & T_OVERRIDE_CENTER) == 0) {
+		t->center[0] = t->scene->r.cfra;
+		projectFloatView(t, t->center, center);
+		center[1] = t->mouse.imval[1];
+	}
 
 	/* force a reinit with the center2d used here */
 	initMouseInput(t, &t->mouse, center, t->mouse.imval, false);
diff --git a/source/blender/editors/transform/transform.h b/source/blender/editors/transform/transform.h
index d60eb2f0778..06a60456cdb 100644
--- a/source/blender/editors/transform/transform.h
+++ b/source/blender/editors/transform/transform.h
@@ -533,6 +533,9 @@ typedef struct TransInfo {
 	/* alternative transformation. used to add offset to tracking markers */
 #define T_ALT_TRANSFORM		(1 << 24)
 
+	/** #TransInfo.center has been set, don't change it. */
+#define T_OVERRIDE_CENTER	(1 << 25)
+
 /* TransInfo->modifiers */
 #define	MOD_CONSTRAINT_SELECT	0x01
 #define	MOD_PRECISION			0x02
diff --git a/source/blender/editors/transform/transform_constraints.c b/source/blender/editors/transform/transform_constraints.c
index d7b670b6476..5621eede543 100644
--- a/source/blender/editors/transform/transform_constraints.c
+++ b/source/blender/editors/transform/transform_constraints.c
@@ -831,6 +831,13 @@ static void drawObjectConstraint(TransInfo *t)
 			}
 		}
 
+		if (t->options & CTX_GPENCIL_STROKES) {
+			/* only draw a constraint line for one point, otherwise we can't see anything */
+			if ((options & DRAWLIGHT) == 0) {
+				break;
+			}
+		}
+
 		if (t->flag & T_OBJECT) {
 			copy_v3_v3(co, td->ob->obmat[3]);
 			axismtx = td->axismtx;
diff --git a/source/blender/editors/transform/transform_conversions.c b/source/blender/editors/transform/transform_conversions.c
index 4429d19613a..9d63afeb85c 100644
--- a/source/blender/editors/transform/transform_conversions.c
+++ b/source/blender/editors/transform/transform_conversions.c
@@ -807,7 +807,6 @@ static bool pchan_autoik_adjust(bPoseChannel *pchan, short chainlen)
 /* change the chain-length of auto-ik */
 void transform_autoik_update(TransInfo *t, short mode)
 {
-	const short old_len = t->settings->autoik_chainlen;
 	short *chainlen = &t->settings->autoik_chainlen;
 	bPoseChannel *pchan;
 
@@ -818,12 +817,13 @@ void transform_autoik_update(TransInfo *t, short mode)
 	}
 	else if (mode == -1) {
 		/* mode==-1 is from WHEELMOUSEUP... decreases len */
-		if (*chainlen > 0) (*chainlen)--;
-	}
-
-	/* IK length did not change, skip any updates. */
-	if (old_len == *chainlen) {
-		return;
+		if (*chainlen > 0) {
+			(*chainlen)--;
+		}
+		else {
+			/* IK length did not change, skip updates. */
+			return;
+		}
 	}
 
 	/* sanity checks (don't assume t->poseobj is set, or that it is an armature) */
@@ -2801,7 +2801,7 @@ void flushTransSeq(TransInfo *t)
 		tdsq = (TransDataSeq *)td->extra;
 		seq = tdsq->seq;
 		old_start = seq->start;
-		new_frame = iroundf(td2d->loc[0]);
+		new_frame = round_fl_to_int(td2d->loc[0]);
 
 		switch (tdsq->sel_flag) {
 			case SELECT:
@@ -2813,7 +2813,7 @@ void flushTransSeq(TransInfo *t)
 					seq->start = new_frame - tdsq->start_offset;
 #endif
 				if (seq->depth == 0) {
-					seq->machine = iroundf(td2d->loc[1]);
+					seq->machine = round_fl_to_int(td2d->loc[1]);
 					CLAMP(seq->machine, 1, MAXSEQ);
 				}
 				break;
@@ -3761,7 +3761,7 @@ void flushTransIntFrameActionData(TransInfo *t)
 
 	/* flush data! */
 	for (i = 0; i < t->total; i++, tfd++) {
-		*(tfd->sdata) = iroundf(tfd->val);
+		*(tfd->sdata) = round_fl_to_int(tfd->val);
 	}
 }
 
@@ -4789,7 +4789,7 @@ void flushTransGraphData(TransInfo *t)
 		
 		/* if int-values only, truncate to integers */
 		if (td->flag & TD_INTVALUES)
-			td2d->loc2d[1] = floorf(td2d->loc[1] + 0.5f);
+			td2d->loc2d[1] = floorf(td2d->loc[1] * inv_unit_scale - tdg->offset + 0.5f);
 		else
 			td2d->loc2d[1] = td2d->loc[1] * inv_unit_scale - tdg->offset;
 		
@@ -5606,9 +5606,7 @@ static void set_trans_object_base_flags(TransInfo *t)
 	}
 
 	/* all recalc flags get flushed to all layers, so a layer flip later on works fine */
-#ifdef WITH_LEGACY_DEPSGRAPH
 	DAG_scene_flush_update(G.main, t->scene, -1, 0);
-#endif
 
 	/* and we store them temporal in base (only used for transform code) */
 	/* this because after doing updates, the object->recalc is cleared */
@@ -5687,9 +5685,7 @@ static int count_proportional_objects(TransInfo *t)
 
 	/* all recalc flags get flushed to all layers, so a layer flip later on works fine */
 	DAG_scene_relations_update(G.main, t->scene);
-#ifdef WITH_LEGACY_DEPSGRAPH
 	DAG_scene_flush_update(G.main, t->scene, -1, 0);
-#endif
 
 	/* and we store them temporal in base (only used for transform code) */
 	/* this because after doing updates, the object->recalc is cleared */
@@ -5976,27 +5972,23 @@ static void special_aftertrans_update__movieclip(bContext *C, TransInfo *t)
 {
 	SpaceClip *sc = t->sa->spacedata.first;
 	MovieClip *clip = ED_space_clip_get_clip(sc);
-	MovieTrackingPlaneTrack *plane_track;
 	ListBase *plane_tracks_base = BKE_tracking_get_active_plane_tracks(&clip->tracking);
-	int framenr = ED_space_clip_get_clip_frame_number(sc);
-
-	for (plane_track = plane_tracks_base->first;
+	const int framenr = ED_space_clip_get_clip_frame_number(sc);
+	/* Update coordinates of modified plane tracks. */
+	for (MovieTrackingPlaneTrack *plane_track = plane_tracks_base->first;
 	     plane_track;
 	     plane_track = plane_track->next)
 	{
 		bool do_update = false;
-
 		if (plane_track->flag & PLANE_TRACK_HIDDEN) {
 			continue;
 		}
-
 		do_update |= PLANE_TRACK_VIEW_SELECTED(plane_track) != 0;
 		if (do_update == false) {
 			if ((plane_track->flag & PLANE_TRACK_AUTOKEY) == 0) {
 				int i;
 				for (i = 0; i < plane_track->point_tracksnr; i++) {
 					MovieTrackingTrack *track = plane_track->point_tracks[i];
-
 					if (TRACK_VIEW_SELECTED(sc, track)) {
 						do_update = true;
 						break;
@@ -6004,15 +5996,14 @@ static void special_aftertrans_update__movieclip(bContext *C, TransInfo *t)
 				}
 			}
 		}
-
 		if (do_update) {
 			BKE_tracking_track_plane_from_existing_motion(plane_track, framenr);
 		}
 	}
-
-	if (t->scene->nodetree) {
-		/* tracks can be used for stabilization nodes,
-		 * flush update for such nodes */
+	if (t->scene->nodetree != NULL) {
+		/* Tracks can be used for stabilization nodes,
+		 * flush update for such nodes.
+		 */
 		nodeUpdateID(t->scene->nodetree, &clip->id);
 		WM_event_add_notifier(C, NC_SCENE | ND_NODES, NULL);
 	}
@@ -7840,7 +7831,7 @@ static void createTransGPencil(bContext *C, TransInfo *t)
 	float mtx[3][3], smtx[3][3];
 	
 	const Scene *scene = CTX_data_scene(C);
-	const int cfra = CFRA;
+	const int cfra_scene = CFRA;
 	
 	const bool is_prop_edit = (t->flag & T_PROP_EDIT) != 0;
 	const bool is_prop_edit_connected = (t->flag & T_PROP_CONNECTED) != 0;
@@ -7865,7 +7856,7 @@ static void createTransGPencil(bContext *C, TransInfo *t)
 		if (gpencil_layer_is_editable(gpl) && (gpl->actframe != NULL)) {
 			bGPDframe *gpf = gpl->actframe;
 			bGPDstroke *gps;
-			
+
 			for (gps = gpf->strokes.first; gps; gps = gps->next) {
 				/* skip strokes that are invalid for current view */
 				if (ED_gpencil_stroke_can_use(C, gps) == false) {
@@ -7921,6 +7912,7 @@ static void createTransGPencil(bContext *C, TransInfo *t)
 	for (gpl = gpd->layers.first; gpl; gpl = gpl->next) {
 		/* only editable and visible layers are considered */
 		if (gpencil_layer_is_editable(gpl) && (gpl->actframe != NULL)) {
+			const int cfra = (gpl->flag & GP_LAYER_FRAMELOCK) ? gpl->actframe->framenum : cfra_scene;
 			bGPDframe *gpf = gpl->actframe;
 			bGPDstroke *gps;
 			float diff_mat[4][4];
@@ -7937,7 +7929,6 @@ static void createTransGPencil(bContext *C, TransInfo *t)
 			 * - This is useful when animating as it saves that "uh-oh" moment when you realize you've
 			 *   spent too much time editing the wrong frame...
 			 */
-			// XXX: should this be allowed when framelock is enabled?
 			if (gpf->framenum != cfra) {
 				gpf = BKE_gpencil_frame_addcopy(gpl, cfra);
 				/* in some weird situations (framelock enabled) return NULL */
diff --git a/source/blender/editors/transform/transform_generics.c b/source/blender/editors/transform/transform_generics.c
index c23da19f830..179b68dd270 100644
--- a/source/blender/editors/transform/transform_generics.c
+++ b/source/blender/editors/transform/transform_generics.c
@@ -1331,7 +1331,7 @@ void initTransInfo(bContext *C, TransInfo *t, wmOperator *op, const wmEvent *eve
 			t->current_orientation = V3D_MANIP_GLOBAL;
 		}
 	}
-	
+
 	if (op && ((prop = RNA_struct_find_property(op->ptr, "release_confirm")) &&
 	           RNA_property_is_set(op->ptr, prop)))
 	{
@@ -1435,6 +1435,13 @@ void initTransInfo(bContext *C, TransInfo *t, wmOperator *op, const wmEvent *eve
 #endif
 
 	setTransformViewAspect(t, t->aspect);
+
+	if (op && (prop = RNA_struct_find_property(op->ptr, "center_override")) && RNA_property_is_set(op->ptr, prop)) {
+		RNA_property_float_get_array(op->ptr, prop, t->center);
+		mul_v3_v3(t->center, t->aspect);
+		t->flag |= T_OVERRIDE_CENTER;
+	}
+
 	setTransformViewMatrices(t);
 	initNumInput(&t->num);
 }
@@ -1835,7 +1842,9 @@ static void calculateCenter_FromAround(TransInfo *t, int around, float r_center[
 
 void calculateCenter(TransInfo *t)
 {
-	calculateCenter_FromAround(t, t->around, t->center);
+	if ((t->flag & T_OVERRIDE_CENTER) == 0) {
+		calculateCenter_FromAround(t, t->around, t->center);
+	}
 	calculateCenterGlobal(t, t->center, t->center_global);
 
 	/* avoid calculating again */
@@ -1849,7 +1858,7 @@ void calculateCenter(TransInfo *t)
 	calculateCenter2D(t);
 
 	/* for panning from cameraview */
-	if (t->flag & T_OBJECT) {
+	if ((t->flag & T_OBJECT) && (t->flag & T_OVERRIDE_CENTER) == 0) {
 		if (t->spacetype == SPACE_VIEW3D && t->ar && t->ar->regiontype == RGN_TYPE_WINDOW) {
 			
 			if (t->flag & T_CAMERA) {
diff --git a/source/blender/editors/transform/transform_manipulator.c b/source/blender/editors/transform/transform_manipulator.c
index ec066ba91a4..9a362ee609f 100644
--- a/source/blender/editors/transform/transform_manipulator.c
+++ b/source/blender/editors/transform/transform_manipulator.c
@@ -107,15 +107,16 @@
 #define TW_AXIS_DOT_MIN 0.02f
 #define TW_AXIS_DOT_MAX 0.1f
 
+struct TransformBounds {
+	float center[3];		/* Center for transform widget. */
+	float min[3], max[3];	/* Boundbox of selection for transform widget. */
+};
+
 /* transform widget center calc helper for below */
-static void calc_tw_center(Scene *scene, const float co[3])
+static void calc_tw_center(struct TransformBounds *tbounds, const float co[3])
 {
-	float *twcent = scene->twcent;
-	float *min = scene->twmin;
-	float *max = scene->twmax;
-
-	minmax_v3v3_v3(min, max, co);
-	add_v3_v3(twcent, co);
+	minmax_v3v3_v3(tbounds->min, tbounds->max, co);
+	add_v3_v3(tbounds->center, co);
 }
 
 static void protectflag_to_drawflags(short protectflag, short *drawflags)
@@ -260,7 +261,7 @@ bool gimbal_axis(Object *ob, float gmat[3][3])
 
 /* centroid, boundbox, of selection */
 /* returns total items selected */
-static int calc_manipulator_stats(const bContext *C)
+static int calc_manipulator_stats(const bContext *C, struct TransformBounds *tbounds)
 {
 	ScrArea *sa = CTX_wm_area(C);
 	ARegion *ar = CTX_wm_region(C);
@@ -280,9 +281,9 @@ static int calc_manipulator_stats(const bContext *C)
 	rv3d->twdrawflag = 0xFFFF;
 
 	/* transform widget centroid/center */
-	INIT_MINMAX(scene->twmin, scene->twmax);
-	zero_v3(scene->twcent);
-	
+	INIT_MINMAX(tbounds->min, tbounds->max);
+	zero_v3(tbounds->center);
+
 	if (is_gp_edit) {
 		float diff_mat[4][4];
 		float fpt[3];
@@ -311,12 +312,12 @@ static int calc_manipulator_stats(const bContext *C)
 						for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
 							if (pt->flag & GP_SPOINT_SELECT) {
 								if (gpl->parent == NULL) {
-									calc_tw_center(scene, &pt->x);
+									calc_tw_center(tbounds, &pt->x);
 									totsel++;
 								}
 								else {
 									mul_v3_m4v3(fpt, diff_mat, &pt->x);
-									calc_tw_center(scene, fpt);
+									calc_tw_center(tbounds, fpt);
 									totsel++;
 								}
 							}
@@ -329,7 +330,7 @@ static int calc_manipulator_stats(const bContext *C)
 
 		/* selection center */
 		if (totsel) {
-			mul_v3_fl(scene->twcent, 1.0f / (float)totsel);   /* centroid! */
+			mul_v3_fl(tbounds->center, 1.0f / (float)totsel);
 		}
 	}
 	else if (obedit) {
@@ -344,7 +345,7 @@ static int calc_manipulator_stats(const bContext *C)
 			/* USE LAST SELECTE WITH ACTIVE */
 			if ((v3d->around == V3D_AROUND_ACTIVE) && BM_select_history_active_get(em->bm, &ese)) {
 				BM_editselection_center(&ese, vec);
-				calc_tw_center(scene, vec);
+				calc_tw_center(tbounds, vec);
 				totsel = 1;
 			}
 			else {
@@ -357,7 +358,7 @@ static int calc_manipulator_stats(const bContext *C)
 					if (!BM_elem_flag_test(eve, BM_ELEM_HIDDEN)) {
 						if (BM_elem_flag_test(eve, BM_ELEM_SELECT)) {
 							totsel++;
-							calc_tw_center(scene, eve->co);
+							calc_tw_center(tbounds, eve->co);
 						}
 					}
 				}
@@ -370,13 +371,13 @@ static int calc_manipulator_stats(const bContext *C)
 			if ((v3d->around == V3D_AROUND_ACTIVE) && (ebo = arm->act_edbone)) {
 				/* doesn't check selection or visibility intentionally */
 				if (ebo->flag & BONE_TIPSEL) {
-					calc_tw_center(scene, ebo->tail);
+					calc_tw_center(tbounds, ebo->tail);
 					totsel++;
 				}
 				if ((ebo->flag & BONE_ROOTSEL) ||
 				    ((ebo->flag & BONE_TIPSEL) == false))  /* ensure we get at least one point */
 				{
-					calc_tw_center(scene, ebo->head);
+					calc_tw_center(tbounds, ebo->head);
 					totsel++;
 				}
 				protectflag_to_drawflags_ebone(rv3d, ebo);
@@ -385,7 +386,7 @@ static int calc_manipulator_stats(const bContext *C)
 				for (ebo = arm->edbo->first; ebo; ebo = ebo->next) {
 					if (EBONE_VISIBLE(arm, ebo)) {
 						if (ebo->flag & BONE_TIPSEL) {
-							calc_tw_center(scene, ebo->tail);
+							calc_tw_center(tbounds, ebo->tail);
 							totsel++;
 						}
 						if ((ebo->flag & BONE_ROOTSEL) &&
@@ -395,7 +396,7 @@ static int calc_manipulator_stats(const bContext *C)
 						     (ebo->parent->flag & BONE_TIPSEL) &&
 						     EBONE_VISIBLE(arm, ebo->parent)) == 0)
 						{
-							calc_tw_center(scene, ebo->head);
+							calc_tw_center(tbounds, ebo->head);
 							totsel++;
 						}
 						if (ebo->flag & BONE_SELECTED) {
@@ -410,7 +411,7 @@ static int calc_manipulator_stats(const bContext *C)
 			float center[3];
 
 			if (v3d->around == V3D_AROUND_ACTIVE && ED_curve_active_center(cu, center)) {
-				calc_tw_center(scene, center);
+				calc_tw_center(tbounds, center);
 				totsel++;
 			}
 			else {
@@ -431,21 +432,25 @@ static int calc_manipulator_stats(const bContext *C)
 							 */
 							if (cu->drawflag & CU_HIDE_HANDLES) {
 								if (bezt->f2 & SELECT) {
-									calc_tw_center(scene, bezt->vec[1]);
+									calc_tw_center(tbounds, bezt->vec[1]);
 									totsel++;
 								}
 							}
 							else if (bezt->f2 & SELECT) {
-								calc_tw_center(scene, bezt->vec[1]);
+								calc_tw_center(tbounds, bezt->vec[1]);
 								totsel++;
 							}
 							else {
 								if (bezt->f1 & SELECT) {
-									calc_tw_center(scene, bezt->vec[(v3d->around == V3D_AROUND_LOCAL_ORIGINS) ? 1 : 0]);
+									calc_tw_center(
+									        tbounds,
+									        bezt->vec[(v3d->around == V3D_AROUND_LOCAL_ORIGINS) ? 1 : 0]);
 									totsel++;
 								}
 								if (bezt->f3 & SELECT) {
-									calc_tw_center(scene, bezt->vec[(v3d->around == V3D_AROUND_LOCAL_ORIGINS) ? 1 : 2]);
+									calc_tw_center(
+									        tbounds,
+									        bezt->vec[(v3d->around == V3D_AROUND_LOCAL_ORIGINS) ? 1 : 2]);
 									totsel++;
 								}
 							}
@@ -457,7 +462,7 @@ static int calc_manipulator_stats(const bContext *C)
 						a = nu->pntsu * nu->pntsv;
 						while (a--) {
 							if (bp->f1 & SELECT) {
-								calc_tw_center(scene, bp->vec);
+								calc_tw_center(tbounds, bp->vec);
 								totsel++;
 							}
 							bp++;
@@ -472,13 +477,13 @@ static int calc_manipulator_stats(const bContext *C)
 			MetaElem *ml;
 
 			if ((v3d->around == V3D_AROUND_ACTIVE) && (ml = mb->lastelem)) {
-				calc_tw_center(scene, &ml->x);
+				calc_tw_center(tbounds, &ml->x);
 				totsel++;
 			}
 			else {
 				for (ml = mb->editelems->first; ml; ml = ml->next) {
 					if (ml->flag & SELECT) {
-						calc_tw_center(scene, &ml->x);
+						calc_tw_center(tbounds, &ml->x);
 						totsel++;
 					}
 				}
@@ -489,7 +494,7 @@ static int calc_manipulator_stats(const bContext *C)
 			BPoint *bp;
 
 			if ((v3d->around == V3D_AROUND_ACTIVE) && (bp = BKE_lattice_active_point_get(lt))) {
-				calc_tw_center(scene, bp->vec);
+				calc_tw_center(tbounds, bp->vec);
 				totsel++;
 			}
 			else {
@@ -497,7 +502,7 @@ static int calc_manipulator_stats(const bContext *C)
 				a = lt->pntsu * lt->pntsv * lt->pntsw;
 				while (a--) {
 					if (bp->f1 & SELECT) {
-						calc_tw_center(scene, bp->vec);
+						calc_tw_center(tbounds, bp->vec);
 						totsel++;
 					}
 					bp++;
@@ -507,10 +512,10 @@ static int calc_manipulator_stats(const bContext *C)
 
 		/* selection center */
 		if (totsel) {
-			mul_v3_fl(scene->twcent, 1.0f / (float)totsel);   // centroid!
-			mul_m4_v3(obedit->obmat, scene->twcent);
-			mul_m4_v3(obedit->obmat, scene->twmin);
-			mul_m4_v3(obedit->obmat, scene->twmax);
+			mul_v3_fl(tbounds->center, 1.0f / (float)totsel);
+			mul_m4_v3(obedit->obmat, tbounds->center);
+			mul_m4_v3(obedit->obmat, tbounds->min);
+			mul_m4_v3(obedit->obmat, tbounds->max);
 		}
 	}
 	else if (ob && (ob->mode & OB_MODE_POSE)) {
@@ -524,7 +529,7 @@ static int calc_manipulator_stats(const bContext *C)
 			/* doesn't check selection or visibility intentionally */
 			Bone *bone = pchan->bone;
 			if (bone) {
-				calc_tw_center(scene, pchan->pose_head);
+				calc_tw_center(tbounds, pchan->pose_head);
 				protectflag_to_drawflags_pchan(rv3d, pchan);
 				totsel = 1;
 				ok = true;
@@ -538,7 +543,7 @@ static int calc_manipulator_stats(const bContext *C)
 				for (pchan = ob->pose->chanbase.first; pchan; pchan = pchan->next) {
 					Bone *bone = pchan->bone;
 					if (bone && (bone->flag & BONE_TRANSFORM)) {
-						calc_tw_center(scene, pchan->pose_head);
+						calc_tw_center(tbounds, pchan->pose_head);
 						protectflag_to_drawflags_pchan(rv3d, pchan);
 					}
 				}
@@ -547,10 +552,10 @@ static int calc_manipulator_stats(const bContext *C)
 		}
 
 		if (ok) {
-			mul_v3_fl(scene->twcent, 1.0f / (float)totsel);   // centroid!
-			mul_m4_v3(ob->obmat, scene->twcent);
-			mul_m4_v3(ob->obmat, scene->twmin);
-			mul_m4_v3(ob->obmat, scene->twmax);
+			mul_v3_fl(tbounds->center, 1.0f / (float)totsel);
+			mul_m4_v3(ob->obmat, tbounds->center);
+			mul_m4_v3(ob->obmat, tbounds->min);
+			mul_m4_v3(ob->obmat, tbounds->max);
 		}
 	}
 	else if (ob && (ob->mode & OB_MODE_ALL_PAINT)) {
@@ -569,7 +574,7 @@ static int calc_manipulator_stats(const bContext *C)
 
 				for (k = 0, ek = point->keys; k < point->totkey; k++, ek++) {
 					if (ek->flag & PEK_SELECT) {
-						calc_tw_center(scene, (ek->flag & PEK_USE_WCO) ? ek->world_co : ek->co);
+						calc_tw_center(tbounds, (ek->flag & PEK_USE_WCO) ? ek->world_co : ek->co);
 						totsel++;
 					}
 				}
@@ -577,7 +582,7 @@ static int calc_manipulator_stats(const bContext *C)
 
 			/* selection center */
 			if (totsel)
-				mul_v3_fl(scene->twcent, 1.0f / (float)totsel);  // centroid!
+				mul_v3_fl(tbounds->center, 1.0f / (float)totsel);
 		}
 	}
 	else {
@@ -590,7 +595,7 @@ static int calc_manipulator_stats(const bContext *C)
 			if (TESTBASELIB(v3d, base)) {
 				if (ob == NULL)
 					ob = base->object;
-				calc_tw_center(scene, base->object->obmat[3]);
+				calc_tw_center(tbounds, base->object->obmat[3]);
 				protectflag_to_drawflags(base->object->protectflag, &rv3d->twdrawflag);
 				totsel++;
 			}
@@ -598,7 +603,7 @@ static int calc_manipulator_stats(const bContext *C)
 
 		/* selection center */
 		if (totsel) {
-			mul_v3_fl(scene->twcent, 1.0f / (float)totsel);   // centroid!
+			mul_v3_fl(tbounds->center, 1.0f / (float)totsel);
 		}
 	}
 
@@ -1643,9 +1648,10 @@ void BIF_draw_manipulator(const bContext *C)
 	if ((v3d->twtype & (V3D_MANIP_TRANSLATE | V3D_MANIP_ROTATE | V3D_MANIP_SCALE)) == 0) return;
 
 	{
+		struct TransformBounds tbounds;
 		v3d->twflag &= ~V3D_DRAW_MANIPULATOR;
 
-		totsel = calc_manipulator_stats(C);
+		totsel = calc_manipulator_stats(C, &tbounds);
 		if (totsel == 0) return;
 
 		v3d->twflag |= V3D_DRAW_MANIPULATOR;
@@ -1665,13 +1671,13 @@ void BIF_draw_manipulator(const bContext *C)
 					copy_v3_v3(rv3d->twmat[3], ob->obmat[3]);
 				}
 				else {
-					mid_v3_v3v3(rv3d->twmat[3], scene->twmin, scene->twmax);
+					mid_v3_v3v3(rv3d->twmat[3], tbounds.min, tbounds.max);
 				}
 				break;
 			}
 			case V3D_AROUND_LOCAL_ORIGINS:
 			case V3D_AROUND_CENTER_MEAN:
-				copy_v3_v3(rv3d->twmat[3], scene->twcent);
+				copy_v3_v3(rv3d->twmat[3], tbounds.center);
 				break;
 			case V3D_AROUND_CURSOR:
 				copy_v3_v3(rv3d->twmat[3], ED_view3d_cursor3d_get(scene, v3d));
diff --git a/source/blender/editors/transform/transform_ops.c b/source/blender/editors/transform/transform_ops.c
index 2a97384cf7d..1aa800f9fb1 100644
--- a/source/blender/editors/transform/transform_ops.c
+++ b/source/blender/editors/transform/transform_ops.c
@@ -565,6 +565,14 @@ void Transform_Properties(struct wmOperatorType *ot, int flags)
 		RNA_def_boolean(ot->srna, "correct_uv", 0, "Correct UVs", "Correct UV coordinates when transforming");
 	}
 
+	if (flags & P_CENTER) {
+		/* For manipulators that define their own center. */
+		prop = RNA_def_property(ot->srna, "center_override", PROP_FLOAT, PROP_XYZ);
+		RNA_def_property_array(prop, 3);
+		RNA_def_property_flag(prop, PROP_HIDDEN | PROP_SKIP_SAVE);
+		RNA_def_property_ui_text(prop, "Center Override", "Force using this center value (when set)");
+	}
+
 	if ((flags & P_NO_DEFAULTS) == 0) {
 		// Add confirm method all the time. At the end because it's not really that important and should be hidden only in log, not in keymap edit
 		/*prop =*/ RNA_def_boolean(ot->srna, "release_confirm", 0, "Confirm on Release", "Always confirm operation when releasing button");
@@ -612,7 +620,8 @@ static void TRANSFORM_OT_resize(struct wmOperatorType *ot)
 
 	RNA_def_float_vector(ot->srna, "value", 3, VecOne, -FLT_MAX, FLT_MAX, "Vector", "", -FLT_MAX, FLT_MAX);
 
-	Transform_Properties(ot, P_CONSTRAINT | P_PROPORTIONAL | P_MIRROR | P_GEO_SNAP | P_OPTIONS | P_GPENCIL_EDIT);
+	Transform_Properties(
+	        ot, P_CONSTRAINT | P_PROPORTIONAL | P_MIRROR | P_GEO_SNAP | P_OPTIONS | P_GPENCIL_EDIT | P_CENTER);
 }
 
 static int skin_resize_poll(bContext *C)
@@ -663,7 +672,7 @@ static void TRANSFORM_OT_trackball(struct wmOperatorType *ot)
 	/* Maybe we could use float_vector_xyz here too? */
 	RNA_def_float_rotation(ot->srna, "value", 2, NULL, -FLT_MAX, FLT_MAX, "Angle", "", -FLT_MAX, FLT_MAX);
 
-	Transform_Properties(ot, P_PROPORTIONAL | P_MIRROR | P_SNAP | P_GPENCIL_EDIT);
+	Transform_Properties(ot, P_PROPORTIONAL | P_MIRROR | P_SNAP | P_GPENCIL_EDIT | P_CENTER);
 }
 
 static void TRANSFORM_OT_rotate(struct wmOperatorType *ot)
@@ -683,7 +692,8 @@ static void TRANSFORM_OT_rotate(struct wmOperatorType *ot)
 
 	RNA_def_float_rotation(ot->srna, "value", 0, NULL, -FLT_MAX, FLT_MAX, "Angle", "", -M_PI * 2, M_PI * 2);
 
-	Transform_Properties(ot, P_AXIS | P_CONSTRAINT | P_PROPORTIONAL | P_MIRROR | P_GEO_SNAP | P_GPENCIL_EDIT);
+	Transform_Properties(
+	        ot, P_AXIS | P_CONSTRAINT | P_PROPORTIONAL | P_MIRROR | P_GEO_SNAP | P_GPENCIL_EDIT | P_CENTER);
 }
 
 static void TRANSFORM_OT_tilt(struct wmOperatorType *ot)
@@ -726,7 +736,7 @@ static void TRANSFORM_OT_bend(struct wmOperatorType *ot)
 
 	RNA_def_float_rotation(ot->srna, "value", 1, NULL, -FLT_MAX, FLT_MAX, "Angle", "", -M_PI * 2, M_PI * 2);
 
-	Transform_Properties(ot, P_PROPORTIONAL | P_MIRROR | P_SNAP | P_GPENCIL_EDIT);
+	Transform_Properties(ot, P_PROPORTIONAL | P_MIRROR | P_SNAP | P_GPENCIL_EDIT | P_CENTER);
 }
 
 static void TRANSFORM_OT_shear(struct wmOperatorType *ot)
@@ -767,7 +777,7 @@ static void TRANSFORM_OT_push_pull(struct wmOperatorType *ot)
 
 	RNA_def_float(ot->srna, "value", 0, -FLT_MAX, FLT_MAX, "Distance", "", -FLT_MAX, FLT_MAX);
 
-	Transform_Properties(ot, P_PROPORTIONAL | P_MIRROR | P_SNAP);
+	Transform_Properties(ot, P_PROPORTIONAL | P_MIRROR | P_SNAP | P_CENTER);
 }
 
 static void TRANSFORM_OT_shrink_fatten(struct wmOperatorType *ot)
@@ -810,7 +820,7 @@ static void TRANSFORM_OT_tosphere(struct wmOperatorType *ot)
 
 	RNA_def_float_factor(ot->srna, "value", 0, 0, 1, "Factor", "", 0, 1);
 
-	Transform_Properties(ot, P_PROPORTIONAL | P_MIRROR | P_SNAP | P_GPENCIL_EDIT);
+	Transform_Properties(ot, P_PROPORTIONAL | P_MIRROR | P_SNAP | P_GPENCIL_EDIT | P_CENTER);
 }
 
 static void TRANSFORM_OT_mirror(struct wmOperatorType *ot)
@@ -828,7 +838,7 @@ static void TRANSFORM_OT_mirror(struct wmOperatorType *ot)
 	ot->cancel = transform_cancel;
 	ot->poll   = ED_operator_screenactive;
 
-	Transform_Properties(ot, P_CONSTRAINT | P_PROPORTIONAL | P_GPENCIL_EDIT);
+	Transform_Properties(ot, P_CONSTRAINT | P_PROPORTIONAL | P_GPENCIL_EDIT | P_CENTER);
 }
 
 static void TRANSFORM_OT_edge_slide(struct wmOperatorType *ot)
@@ -991,7 +1001,8 @@ static void TRANSFORM_OT_transform(struct wmOperatorType *ot)
 
 	RNA_def_float_vector(ot->srna, "value", 4, NULL, -FLT_MAX, FLT_MAX, "Values", "", -FLT_MAX, FLT_MAX);
 
-	Transform_Properties(ot, P_AXIS | P_CONSTRAINT | P_PROPORTIONAL | P_MIRROR | P_ALIGN_SNAP | P_GPENCIL_EDIT);
+	Transform_Properties(
+	        ot, P_AXIS | P_CONSTRAINT | P_PROPORTIONAL | P_MIRROR | P_ALIGN_SNAP | P_GPENCIL_EDIT | P_CENTER);
 }
 
 void transform_operatortypes(void)
diff --git a/source/blender/editors/transform/transform_snap.c b/source/blender/editors/transform/transform_snap.c
index 318d2718969..4a7c2decf95 100644
--- a/source/blender/editors/transform/transform_snap.c
+++ b/source/blender/editors/transform/transform_snap.c
@@ -1017,7 +1017,7 @@ static void CalcSnapGeometry(TransInfo *t, float *UNUSED(vec))
 		float dist_px = SNAP_MIN_DISTANCE; // Use a user defined value here
 		char node_border;
 		
-		if (snapNodesTransform(t, t->mval, t->tsnap.modeSelect, loc, &dist_px, &node_border)) {
+		if (snapNodesTransform(t, t->mval, loc, &dist_px, &node_border)) {
 			copy_v2_v2(t->tsnap.snapPoint, loc);
 			t->tsnap.snapNodeBorder = node_border;
 			
@@ -1413,22 +1413,11 @@ static bool snapNodes(
 }
 
 bool snapNodesTransform(
-        TransInfo *t, const int mval[2], SnapSelect snap_select,
+        TransInfo *t, const int mval[2],
         float r_loc[2], float *r_dist_px, char *r_node_border)
 {
 	return snapNodes(
-	        t->settings, t->sa->spacedata.first, t->ar, mval, snap_select,
-	        r_loc, r_dist_px, r_node_border);
-}
-
-bool snapNodesContext(
-        bContext *C, const int mval[2], SnapSelect snap_select,
-        float r_loc[2], float *r_dist_px, char *r_node_border)
-{
-	Scene *scene = CTX_data_scene(C);
-	ARegion *ar = CTX_wm_region(C);
-	return snapNodes(
-	        scene->toolsettings, CTX_wm_space_node(C), ar, mval, snap_select,
+	        t->settings, t->sa->spacedata.first, t->ar, mval, t->tsnap.modeSelect,
 	        r_loc, r_dist_px, r_node_border);
 }
 
@@ -1478,7 +1467,7 @@ void snapSequenceBounds(TransInfo *t, const int mval[2])
 
 	/* convert to frame range */
 	UI_view2d_region_to_view(&t->ar->v2d, mval[0], mval[1], &xmouse, &ymouse);
-	mframe = iroundf(xmouse);
+	mframe = round_fl_to_int(xmouse);
 	/* now find the closest sequence */
 	frame = BKE_sequencer_find_next_prev_edit(t->scene, mframe, SEQ_SIDE_BOTH, true, false, true);
 
diff --git a/source/blender/editors/transform/transform_snap_object.c b/source/blender/editors/transform/transform_snap_object.c
index 85833f54da6..1fdf7c67cff 100644
--- a/source/blender/editors/transform/transform_snap_object.c
+++ b/source/blender/editors/transform/transform_snap_object.c
@@ -139,43 +139,55 @@ struct SnapObjectContext {
 * \{ */
 
 
-#define ITER_SNAP_OBJECTS(use_obedit, ob, obmat, sctx, snap_select, obedit, CODE) \
-	Base *base_act = sctx->scene->basact;\
-	/* Need an exception for particle edit because the base is flagged with BA_HAS_RECALC_DATA\
-	 * which makes the loop skip it, even the derived mesh will never change\
-	 *\
-	 * To solve that problem, we do it first as an exception.\
-	 * */\
-	if (base_act && base_act->object && base_act->object->mode & OB_MODE_PARTICLE_EDIT) {\
-		use_obedit = false;\
-		ob = base_act->object;\
-		obmat = ob->obmat;\
-		CODE\
-	}\
-	for (Base *base = sctx->scene->base.first; base != NULL; base = base->next) {\
-		if ((BASE_VISIBLE_BGMODE(sctx->v3d_data.v3d, sctx->scene, base)) &&\
-		    (base->flag & (BA_HAS_RECALC_OB | BA_HAS_RECALC_DATA)) == 0 &&\
-			!((snap_select == SNAP_NOT_SELECTED && (base->flag & (SELECT | BA_WAS_SEL))) ||\
-			  (snap_select == SNAP_NOT_ACTIVE && base == base_act)))\
-		{\
-			Object *obj = base->object;\
-			if (ob->transflag & OB_DUPLI) {\
-				DupliObject *dupli_ob;\
-				ListBase *lb = object_duplilist(sctx->bmain->eval_ctx, sctx->scene, obj);\
-				for (dupli_ob = lb->first; dupli_ob; dupli_ob = dupli_ob->next) {\
-					use_obedit = obedit && dupli_ob->ob->data == obedit->data;;\
-					ob = use_obedit ? obedit : dupli_ob->ob;\
-					obmat = dupli_ob->mat;\
-					CODE\
-				}\
-				free_object_duplilist(lb);\
-			}\
-			use_obedit = obedit && ob->data == obedit->data;\
-			ob = use_obedit ? obedit : obj;\
-			obmat = ob->obmat;\
-			CODE\
-		}\
-	}\
+typedef void(*IterSnapObjsCallback)(SnapObjectContext *sctx, bool is_obedit, Object *ob, float obmat[4][4], void *data);
+
+/**
+ * Walks through all objects in the scene to create the list of objets to snap.
+ *
+ * \param sctx: Snap context to store data.
+ * \param snap_select : from enum SnapSelect.
+ * \param obedit : Object Edited to use its coordinates of BMesh(if any) to do the snapping.
+ */
+static void iter_snap_objects(
+        SnapObjectContext *sctx,
+        const SnapSelect snap_select,
+        Object *obedit,
+        IterSnapObjsCallback sob_callback,
+        void *data)
+{
+	Base *base_act = sctx->scene->basact;
+	/* Need an exception for particle edit because the base is flagged with BA_HAS_RECALC_DATA
+	 * which makes the loop skip it, even the derived mesh will never change
+	 *
+	 * To solve that problem, we do it first as an exception.
+	 * */
+	if (base_act && base_act->object && base_act->object->mode & OB_MODE_PARTICLE_EDIT) {
+		sob_callback(sctx, false, base_act->object, base_act->object->obmat, data);
+	}
+
+	for (Base *base = sctx->scene->base.first; base != NULL; base = base->next) {
+		if ((BASE_VISIBLE_BGMODE(sctx->v3d_data.v3d, sctx->scene, base)) &&
+		    (base->flag & (BA_HAS_RECALC_OB | BA_HAS_RECALC_DATA)) == 0 &&
+		    !((snap_select == SNAP_NOT_SELECTED && (base->flag & (SELECT | BA_WAS_SEL))) ||
+		      (snap_select == SNAP_NOT_ACTIVE && base == base_act)))
+		{
+			bool use_obedit;
+			Object *obj = base->object;
+			if (obj->transflag & OB_DUPLI) {
+				DupliObject *dupli_ob;
+				ListBase *lb = object_duplilist(sctx->bmain->eval_ctx, sctx->scene, obj);
+				for (dupli_ob = lb->first; dupli_ob; dupli_ob = dupli_ob->next) {
+					use_obedit = obedit && dupli_ob->ob->data == obedit->data;
+					sob_callback(sctx, use_obedit, use_obedit ? obedit : dupli_ob->ob, dupli_ob->mat, data);
+				}
+				free_object_duplilist(lb);
+			}
+
+			use_obedit = obedit && obj->data == obedit->data;
+			sob_callback(sctx, use_obedit, use_obedit ? obedit : obj, obj->obmat, data);
+		}
+	}
+}
 
 
 /**
@@ -353,7 +365,7 @@ static void raycast_all_cb(void *userdata, int index, const BVHTreeRay *ray, BVH
 
 static bool raycastDerivedMesh(
         SnapObjectContext *sctx,
-        const float ray_orig[3], const float ray_start[3], const float ray_dir[3], const float depth_range[2],
+        const float ray_start[3], const float ray_dir[3],
         Object *ob, DerivedMesh *dm, float obmat[4][4], const unsigned int ob_index,
         /* read/write args */
         float *ray_depth,
@@ -393,7 +405,7 @@ static bool raycastDerivedMesh(
 	if (bb) {
 		/* was BKE_boundbox_ray_hit_check, see: cf6ca226fa58 */
 		if (!isect_ray_aabb_v3_simple(
-			    ray_start_local, ray_normal_local, bb->vec[0], bb->vec[6], &len_diff, NULL))
+		        ray_start_local, ray_normal_local, bb->vec[0], bb->vec[6], &len_diff, NULL))
 		{
 			return retval;
 		}
@@ -424,21 +436,18 @@ static bool raycastDerivedMesh(
 				free_bvhtree_from_mesh(treedata);
 			}
 			else {
-				if (!treedata->vert_allocated) {
+				if (treedata->vert == NULL) {
 					treedata->vert = DM_get_vert_array(dm, &treedata->vert_allocated);
 				}
-				if (!treedata->loop_allocated) {
+				if (treedata->loop == NULL) {
 					treedata->loop = DM_get_loop_array(dm, &treedata->loop_allocated);
 				}
-				if (!treedata->looptri_allocated) {
-					if (!sod->poly_allocated) {
+				if (treedata->looptri == NULL) {
+					if (sod->mpoly == NULL) {
 						sod->mpoly = DM_get_poly_array(dm, &sod->poly_allocated);
 					}
-					treedata->looptri = DM_get_looptri_array(
-					        dm, treedata->vert,
-					        sod->mpoly, dm->getNumPolys(dm),
-					        treedata->loop, dm->getNumLoops(dm),
-					        &treedata->looptri_allocated);
+					treedata->looptri = dm->getLoopTriArray(dm);
+					treedata->looptri_allocated = false;
 				}
 			}
 		}
@@ -462,8 +471,7 @@ static bool raycastDerivedMesh(
 	if (len_diff == 0.0f) {  /* do_ray_start_correction */
 		/* We *need* a reasonably valid len_diff in this case.
 		 * Get the distance to bvhtree root */
-		if (!isect_ray_bvhroot_v3(treedata->tree, ray_start_local, ray_normal_local, &len_diff))
-		{
+		if (!isect_ray_bvhroot_v3(treedata->tree, ray_start_local, ray_normal_local, &len_diff)) {
 			return retval;
 		}
 	}
@@ -471,18 +479,11 @@ static bool raycastDerivedMesh(
 	 * because even in the Orthografic view, in some cases,
 	 * the ray can start inside the object (see T50486) */
 	if (len_diff > 400.0f) {
-		float ray_org_local[3];
-
-		copy_v3_v3(ray_org_local, ray_orig);
-		mul_m4_v3(imat, ray_org_local);
-
 		/* We pass a temp ray_start, set from object's boundbox, to avoid precision issues with
 		 * very far away ray_start values (as returned in case of ortho view3d), see T38358.
 		 */
 		len_diff -= local_scale; /* make temp start point a bit away from bbox hit point. */
-		madd_v3_v3v3fl(
-		        ray_start_local, ray_org_local, ray_normal_local,
-		        len_diff + depth_range[0] * local_scale);
+		madd_v3_v3fl(ray_start_local, ray_normal_local, len_diff);
 		local_depth -= len_diff;
 	}
 	else {
@@ -512,8 +513,8 @@ static bool raycastDerivedMesh(
 		BVHTreeRayHit hit = {.index = -1, .dist = local_depth};
 
 		if (BLI_bvhtree_ray_cast(
-			    treedata->tree, ray_start_local, ray_normal_local, 0.0f,
-			    &hit, treedata->raycast_callback, treedata) != -1)
+		        treedata->tree, ray_start_local, ray_normal_local, 0.0f,
+		        &hit, treedata->raycast_callback, treedata) != -1)
 		{
 			hit.dist += len_diff;
 			hit.dist /= local_scale;
@@ -544,7 +545,7 @@ static bool raycastDerivedMesh(
 
 static bool raycastEditMesh(
         SnapObjectContext *sctx,
-        const float ray_orig[3], const float ray_start[3], const float ray_dir[3], const float depth_range[2],
+        const float ray_start[3], const float ray_dir[3],
         Object *ob, BMEditMesh *em, float obmat[4][4], const unsigned int ob_index,
         /* read/write args */
         float *ray_depth,
@@ -558,8 +559,7 @@ static bool raycastEditMesh(
 	}
 
 	SnapObjectData_EditMesh *sod = NULL;
-
-	BVHTreeFromEditMesh *treedata;
+	BVHTreeFromEditMesh *treedata = NULL;
 
 	void **sod_p;
 	if (BLI_ghash_ensure_p(sctx->cache.object_map, ob, &sod_p)) {
@@ -627,26 +627,18 @@ static bool raycastEditMesh(
 	if (sctx->use_v3d && !((RegionView3D *)sctx->v3d_data.ar->regiondata)->is_persp) {  /* do_ray_start_correction */
 		/* We *need* a reasonably valid len_diff in this case.
 		 * Get the distance to bvhtree root */
-		if (!isect_ray_bvhroot_v3(treedata->tree, ray_start_local, ray_normal_local, &len_diff))
-		{
+		if (!isect_ray_bvhroot_v3(treedata->tree, ray_start_local, ray_normal_local, &len_diff)) {
 			return retval;
 		}
 		/* You need to make sure that ray_start is really far away,
 		 * because even in the Orthografic view, in some cases,
 		 * the ray can start inside the object (see T50486) */
 		if (len_diff > 400.0f) {
-			float ray_org_local[3];
-
-			copy_v3_v3(ray_org_local, ray_orig);
-			mul_m4_v3(imat, ray_org_local);
-
 			/* We pass a temp ray_start, set from object's boundbox, to avoid precision issues with
 			 * very far away ray_start values (as returned in case of ortho view3d), see T38358.
 			 */
 			len_diff -= local_scale; /* make temp start point a bit away from bbox hit point. */
-			madd_v3_v3v3fl(
-			        ray_start_local, ray_org_local, ray_normal_local,
-			        len_diff + depth_range[0] * local_scale);
+			madd_v3_v3fl(ray_start_local, ray_normal_local, len_diff);
 			local_depth -= len_diff;
 		}
 		else len_diff = 0.0f;
@@ -713,7 +705,7 @@ static bool raycastEditMesh(
  */
 static bool raycastObj(
         SnapObjectContext *sctx,
-        const float ray_orig[3], const float ray_start[3], const float ray_dir[3], const float depth_range[2],
+        const float ray_start[3], const float ray_dir[3],
         Object *ob, float obmat[4][4], const unsigned int ob_index,
         bool use_obedit,
         /* read/write args */
@@ -732,7 +724,7 @@ static bool raycastObj(
 			em = BKE_editmesh_from_object(ob);
 			retval = raycastEditMesh(
 			        sctx,
-			        ray_orig, ray_start, ray_dir, depth_range,
+			        ray_start, ray_dir,
 			        ob, em, obmat, ob_index,
 			        ray_depth, r_loc, r_no, r_index, r_hit_list);
 		}
@@ -749,11 +741,9 @@ static bool raycastObj(
 			}
 			retval = raycastDerivedMesh(
 			        sctx,
-			        ray_orig, ray_start, ray_dir, depth_range,
+			        ray_start, ray_dir,
 			        ob, dm, obmat, ob_index,
 			        ray_depth, r_loc, r_no, r_index, r_hit_list);
-
-			dm->release(dm);
 		}
 	}
 
@@ -768,6 +758,35 @@ static bool raycastObj(
 }
 
 
+struct RaycastObjUserData {
+	const float *ray_start;
+	const float *ray_dir;
+	unsigned int ob_index;
+	/* read/write args */
+	float *ray_depth;
+	/* return args */
+	float *r_loc;
+	float *r_no;
+	int *r_index;
+	Object **r_ob;
+	float (*r_obmat)[4];
+	ListBase *r_hit_list;
+	bool ret;
+};
+
+static void raycast_obj_cb(SnapObjectContext *sctx, bool is_obedit, Object *ob, float obmat[4][4], void *data)
+{
+	struct RaycastObjUserData *dt = data;
+	dt->ret |= raycastObj(
+	        sctx,
+	        dt->ray_start, dt->ray_dir,
+	        ob, obmat, dt->ob_index++, is_obedit,
+	        dt->ray_depth,
+	        dt->r_loc, dt->r_no, dt->r_index,
+	        dt->r_ob, dt->r_obmat,
+	        dt->r_hit_list);
+}
+
 /**
  * Main RayCast Function
  * ======================
@@ -799,7 +818,7 @@ static bool raycastObj(
  */
 static bool raycastObjects(
         SnapObjectContext *sctx,
-        const float ray_orig[3], const float ray_start[3], const float ray_dir[3], const float depth_range[2],
+        const float ray_start[3], const float ray_dir[3],
         const SnapSelect snap_select, const bool use_object_edit_cage,
         /* read/write args */
         float *ray_depth,
@@ -808,24 +827,25 @@ static bool raycastObjects(
         Object **r_ob, float r_obmat[4][4],
         ListBase *r_hit_list)
 {
-	bool retval = false;
-	bool use_obedit;
-
-	unsigned int ob_index = 0;
-
-	Object *ob, *obedit;
-	float (*obmat)[4];
+	Object *obedit = use_object_edit_cage ? sctx->scene->obedit : NULL;
+
+	struct RaycastObjUserData data = {
+		.ray_start = ray_start,
+		.ray_dir = ray_dir,
+		.ob_index = 0,
+		.ray_depth = ray_depth,
+		.r_loc = r_loc,
+		.r_no = r_no,
+		.r_index = r_index,
+		.r_ob = r_ob,
+		.r_obmat = r_obmat,
+		.r_hit_list = r_hit_list,
+		.ret = false,
+	};
 
-	obedit = use_object_edit_cage ? sctx->scene->obedit : NULL;
-	ITER_SNAP_OBJECTS(use_obedit, ob, obmat, sctx, snap_select, obedit,
-		retval |= raycastObj(
-		        sctx,
-		        ray_orig, ray_start, ray_dir, depth_range,
-		        ob, obmat, ob_index++, use_obedit,
-		        ray_depth, r_loc, r_no, r_index, r_ob, r_obmat, r_hit_list);
-	)
+	iter_snap_objects(sctx, snap_select, obedit, raycast_obj_cb, &data);
 
-	return retval;
+	return data.ret;
 }
 
 
@@ -1045,36 +1065,20 @@ static float dist_squared_to_projected_aabb(
 		main_axis += 3;
 	}
 
-	/* if rtmin < rtmax, ray intersect `AABB` */
-	if (rtmin <= rtmax) {
 #define IGNORE_BEHIND_RAY
 #ifdef IGNORE_BEHIND_RAY
-		/* `if rtmax < depth_min`, the hit is behind us */
-		if (rtmax < data->ray_min_dist) {
-			/* Test if the entire AABB is behind us */
-			float depth = depth_get(
-			        local_bvmax, data->ray_origin_local, data->ray_direction_local);
-			if (depth < (data->ray_min_dist)) {
-				return FLT_MAX;
-			}
-		}
-#endif
-		const float proj = rtmin * data->ray_direction_local[main_axis];
-		r_axis_closest[main_axis] = (proj - va[main_axis]) < (vb[main_axis] - proj);
-		return 0.0f;
-	}
-#ifdef IGNORE_BEHIND_RAY
-	/* `if rtmin < depth_min`, the hit is behing us */
-	else if (rtmin < data->ray_min_dist) {
-		/* Test if the entire AABB is behind us */
-		float depth = depth_get(
-		        local_bvmax, data->ray_origin_local, data->ray_direction_local);
-		if (depth < (data->ray_min_dist)) {
-			return FLT_MAX;
-		}
+	float depth_max = depth_get(local_bvmax, data->ray_origin_local, data->ray_direction_local);
+	if (depth_max < data->ray_min_dist) {
+		return FLT_MAX;
 	}
 #endif
 #undef IGNORE_BEHIND_RAY
+
+	/* if rtmin <= rtmax, ray intersect `AABB` */
+	if (rtmin <= rtmax) {
+		return 0;
+	}
+
 	if (data->sign[main_axis]) {
 		va[main_axis] = local_bvmax[main_axis];
 		vb[main_axis] = local_bvmin[main_axis];
@@ -1684,10 +1688,10 @@ static bool snapDerivedMesh(
 				free_bvhtree_from_mesh(treedata);
 			}
 			else {
-				if (!treedata->vert_allocated) {
+				if (treedata->vert == NULL) {
 					treedata->vert = DM_get_vert_array(dm, &treedata->vert_allocated);
 				}
-				if ((tree_index == 1) && !treedata->edge_allocated) {
+				if ((tree_index == 1) && (treedata->edge == NULL)) {
 					treedata->edge = DM_get_edge_array(dm, &treedata->edge_allocated);
 				}
 			}
@@ -1794,8 +1798,7 @@ static bool snapEditMesh(
 	float local_scale = normalize_v3(ray_normal_local);
 
 	SnapObjectData_EditMesh *sod = NULL;
-
-	BVHTreeFromEditMesh *treedata;
+	BVHTreeFromEditMesh *treedata = NULL;
 
 	void **sod_p;
 	if (BLI_ghash_ensure_p(sctx->cache.object_map, ob, &sod_p)) {
@@ -1998,6 +2001,33 @@ static bool snapObject(
 }
 
 
+struct SnapObjUserData {
+	SnapData *snapdata;
+	/* read/write args */
+	float *ray_depth;
+	float *dist_px;
+	/* return args */
+	float *r_loc;
+	float *r_no;
+	Object **r_ob;
+	float (*r_obmat)[4];
+	bool ret;
+};
+
+static void sanp_obj_cb(SnapObjectContext *sctx, bool is_obedit, Object *ob, float obmat[4][4], void *data)
+{
+	struct SnapObjUserData *dt = data;
+	dt->ret |= snapObject(
+	        sctx, dt->snapdata,
+	        ob, obmat, is_obedit,
+	        /* read/write args */
+	        dt->ray_depth, dt->dist_px,
+	        /* return args */
+	        dt->r_loc, dt->r_no,
+	        dt->r_ob, dt->r_obmat);
+}
+
+
 /**
  * Main Snapping Function
  * ======================
@@ -2035,21 +2065,22 @@ static bool snapObjectsRay(
         float r_loc[3], float r_no[3],
         Object **r_ob, float r_obmat[4][4])
 {
-	bool retval = false;
-	bool use_obedit;
-
-	Object *ob, *obedit;
-	float (*obmat)[4];
+	Object *obedit = use_object_edit_cage ? sctx->scene->obedit : NULL;
+
+	struct SnapObjUserData data = {
+		.snapdata = snapdata,
+		.ray_depth = ray_depth,
+		.dist_px = dist_px,
+		.r_loc = r_loc,
+		.r_no = r_no,
+		.r_ob = r_ob,
+		.r_obmat = r_obmat,
+		.ret = false,
+	};
 
-	obedit = use_object_edit_cage ? sctx->scene->obedit : NULL;
-	ITER_SNAP_OBJECTS(use_obedit, ob, obmat, sctx, snap_select, obedit,
-		retval |= snapObject(
-		        sctx, snapdata, ob, obmat, use_obedit,
-		        ray_depth, dist_px,
-		        r_loc, r_no, r_ob, r_obmat);
-	)
+	iter_snap_objects(sctx, snap_select, obedit, sanp_obj_cb, &data);
 
-	return retval;
+	return data.ret;
 }
 
 /** \} */
@@ -2149,11 +2180,9 @@ bool ED_transform_snap_object_project_ray_ex(
         float r_loc[3], float r_no[3], int *r_index,
         Object **r_ob, float r_obmat[4][4])
 {
-	const float depth_range[2] = {0.0f, FLT_MAX};
-
 	return raycastObjects(
 	        sctx,
-	        ray_start, ray_start, ray_normal, depth_range,
+	        ray_start, ray_normal,
 	        params->snap_select, params->use_object_edit_cage,
 	        ray_depth, r_loc, r_no, r_index, r_ob, r_obmat, NULL);
 }
@@ -2172,7 +2201,6 @@ bool ED_transform_snap_object_project_ray_all(
         float ray_depth, bool sort,
         ListBase *r_hit_list)
 {
-	const float depth_range[2] = {0.0f, FLT_MAX};
 	if (ray_depth == -1.0f) {
 		ray_depth = BVH_RAYCAST_DIST_MAX;
 	}
@@ -2183,7 +2211,7 @@ bool ED_transform_snap_object_project_ray_all(
 
 	bool retval = raycastObjects(
 	        sctx,
-	        ray_start, ray_start, ray_normal, depth_range,
+	        ray_start, ray_normal,
 	        params->snap_select, params->use_object_edit_cage,
 	        &ray_depth, NULL, NULL, NULL, NULL, NULL,
 	        r_hit_list);
@@ -2366,7 +2394,7 @@ bool ED_transform_snap_object_project_view3d_ex(
 	if (snap_to == SCE_SNAP_MODE_FACE) {
 		return raycastObjects(
 		        sctx,
-		        ray_origin, ray_start, ray_normal, depth_range,
+		        ray_start, ray_normal,
 		        params->snap_select, params->use_object_edit_cage,
 		        ray_depth, r_loc, r_no, r_index, NULL, NULL, NULL);
 	}
diff --git a/source/blender/editors/uvedit/uvedit_ops.c b/source/blender/editors/uvedit/uvedit_ops.c
index 5125bb54dd4..9ae5145e53a 100644
--- a/source/blender/editors/uvedit/uvedit_ops.c
+++ b/source/blender/editors/uvedit/uvedit_ops.c
@@ -225,7 +225,7 @@ void ED_uvedit_assign_image(Main *UNUSED(bmain), Scene *scene, Object *obedit, I
 			BM_data_layer_add(em->bm, &em->bm->pdata, CD_MTEXPOLY);
 			BM_data_layer_add(em->bm, &em->bm->ldata, CD_MLOOPUV);
 			/* make UVs all nice 0-1 */
-			ED_mesh_uv_loop_reset_ex(obedit->data, CustomData_get_active_layer_index(&em->bm->pdata, CD_MTEXPOLY));
+			ED_mesh_uv_loop_reset_ex(obedit->data, CustomData_get_active_layer(&em->bm->pdata, CD_MTEXPOLY));
 			update = true;
 		}
 
diff --git a/source/blender/freestyle/intern/blender_interface/BlenderStrokeRenderer.cpp b/source/blender/freestyle/intern/blender_interface/BlenderStrokeRenderer.cpp
index 1dbac1848b7..9c478c203e7 100644
--- a/source/blender/freestyle/intern/blender_interface/BlenderStrokeRenderer.cpp
+++ b/source/blender/freestyle/intern/blender_interface/BlenderStrokeRenderer.cpp
@@ -957,7 +957,7 @@ Render *BlenderStrokeRenderer::RenderScene(Render * /*re*/, bool render)
 	}
 #endif
 
-	Render *freestyle_render = RE_NewRender(freestyle_scene->id.name);
+	Render *freestyle_render = RE_NewSceneRender(freestyle_scene);
 
 	RE_RenderFreestyleStrokes(freestyle_render, freestyle_bmain, freestyle_scene,
 	                          render && get_stroke_count() > 0);
diff --git a/source/blender/gpu/GPU_material.h b/source/blender/gpu/GPU_material.h
index 6db23686832..dbfcd4d1ea4 100644
--- a/source/blender/gpu/GPU_material.h
+++ b/source/blender/gpu/GPU_material.h
@@ -226,7 +226,7 @@ void GPU_material_free(struct ListBase *gpumaterial);
 
 void GPU_materials_free(void);
 
-bool GPU_lamp_override_visible(GPULamp *lamp, struct SceneRenderLayer *srl, struct Material *ma);
+bool GPU_lamp_visible(GPULamp *lamp, struct SceneRenderLayer *srl, struct Material *ma);
 void GPU_material_bind(
         GPUMaterial *material, int oblay, int viewlay, double time, int mipmap,
         float viewmat[4][4], float viewinv[4][4], float cameraborder[4], bool scenelock);
diff --git a/source/blender/gpu/intern/gpu_buffers.c b/source/blender/gpu/intern/gpu_buffers.c
index 9f1fe3a5a67..e288c74fee6 100644
--- a/source/blender/gpu/intern/gpu_buffers.c
+++ b/source/blender/gpu/intern/gpu_buffers.c
@@ -76,13 +76,13 @@ typedef struct {
 
 static size_t gpu_buffer_size_from_type(DerivedMesh *dm, GPUBufferType type);
 
-const GPUBufferTypeSettings gpu_buffer_type_settings[] = {
+static const GPUBufferTypeSettings gpu_buffer_type_settings[] = {
     /* vertex */
     {GL_ARRAY_BUFFER, 3},
     /* normal */
     {GL_ARRAY_BUFFER, 4}, /* we copy 3 shorts per normal but we add a fourth for alignment */
     /* mcol */
-    {GL_ARRAY_BUFFER, 3},
+    {GL_ARRAY_BUFFER, 4},
     /* uv */
     {GL_ARRAY_BUFFER, 2},
     /* uv for texpaint */
@@ -690,7 +690,7 @@ void GPU_color_setup(DerivedMesh *dm, int colType)
 
 	glEnableClientState(GL_COLOR_ARRAY);
 	glBindBuffer(GL_ARRAY_BUFFER, dm->drawObject->colors->id);
-	glColorPointer(3, GL_UNSIGNED_BYTE, 0, 0);
+	glColorPointer(4, GL_UNSIGNED_BYTE, 0, 0);
 
 	GLStates |= GPU_BUFFER_COLOR_STATE;
 }
diff --git a/source/blender/gpu/intern/gpu_draw.c b/source/blender/gpu/intern/gpu_draw.c
index 1583d16ca27..2d7fa760e49 100644
--- a/source/blender/gpu/intern/gpu_draw.c
+++ b/source/blender/gpu/intern/gpu_draw.c
@@ -682,10 +682,10 @@ int GPU_verify_image(
 				if (do_color_management) {
 					srgb_frect = MEM_mallocN(ibuf->x * ibuf->y * sizeof(float) * 4, "floar_buf_col_cor");
 					gpu_verify_high_bit_srgb_buffer(srgb_frect, ibuf);
-					frect = srgb_frect + texwinsy * ibuf->x + texwinsx;
+					frect = srgb_frect + (4 * (texwinsy * ibuf->x + texwinsx));
 				}
 				else {
-					frect = ibuf->rect_float + texwinsy * ibuf->x + texwinsx;
+					frect = ibuf->rect_float + (ibuf->channels * (texwinsy * ibuf->x + texwinsx));
 				}
 			}
 			else {
diff --git a/source/blender/gpu/intern/gpu_material.c b/source/blender/gpu/intern/gpu_material.c
index 1f3ae7f708a..f39cad20b9b 100644
--- a/source/blender/gpu/intern/gpu_material.c
+++ b/source/blender/gpu/intern/gpu_material.c
@@ -312,9 +312,11 @@ void GPU_material_free(ListBase *gpumaterial)
 	BLI_freelistN(gpumaterial);
 }
 
-bool GPU_lamp_override_visible(GPULamp *lamp, SceneRenderLayer *srl, Material *ma)
+bool GPU_lamp_visible(GPULamp *lamp, SceneRenderLayer *srl, Material *ma)
 {
-	if (srl && srl->light_override)
+	if (lamp->hide)
+		return false;
+	else if (srl && srl->light_override)
 		return BKE_group_object_exists(srl->light_override, lamp->ob);
 	else if (ma && ma->group)
 		return BKE_group_object_exists(ma->group, lamp->ob);
@@ -338,8 +340,8 @@ void GPU_material_bind(
 			for (LinkData *nlink = material->lamps.first; nlink; nlink = nlink->next) {
 				GPULamp *lamp = nlink->data;
 				
-				if (!lamp->hide && (lamp->lay & viewlay) && (!(lamp->mode & LA_LAYER) || (lamp->lay & oblay)) &&
-				    GPU_lamp_override_visible(lamp, srl, material->ma))
+				if ((lamp->lay & viewlay) && (!(lamp->mode & LA_LAYER) || (lamp->lay & oblay)) &&
+				    GPU_lamp_visible(lamp, srl, material->ma))
 				{
 					lamp->dynenergy = lamp->energy;
 					copy_v3_v3(lamp->dyncol, lamp->col);
diff --git a/source/blender/gpu/shaders/gpu_shader_material.glsl b/source/blender/gpu/shaders/gpu_shader_material.glsl
index f14db57a26a..3dbecc58a7e 100644
--- a/source/blender/gpu/shaders/gpu_shader_material.glsl
+++ b/source/blender/gpu/shaders/gpu_shader_material.glsl
@@ -3116,15 +3116,17 @@ void node_tex_image(vec3 co, sampler2D ima, out vec4 color, out float alpha)
 }
 
 void node_tex_image_box(vec3 texco,
-                        vec3 nob,
+                        vec3 N,
                         sampler2D ima,
                         float blend,
                         out vec4 color,
                         out float alpha)
 {
+	vec3 signed_N = N;
+
 	/* project from direction vector to barycentric coordinates in triangles */
-	nob = vec3(abs(nob.x), abs(nob.y), abs(nob.z));
-	nob /= (nob.x + nob.y + nob.z);
+	N = vec3(abs(N.x), abs(N.y), abs(N.z));
+	N /= (N.x + N.y + N.z);
 
 	/* basic idea is to think of this as a triangle, each corner representing
 	 * one of the 3 faces of the cube. in the corners we have single textures,
@@ -3140,37 +3142,37 @@ void node_tex_image_box(vec3 texco,
 	float limit = 0.5 * (1.0 + blend);
 
 	/* first test for corners with single texture */
-	if (nob.x > limit * (nob.x + nob.y) && nob.x > limit * (nob.x + nob.z)) {
+	if (N.x > limit * (N.x + N.y) && N.x > limit * (N.x + N.z)) {
 		weight.x = 1.0;
 	}
-	else if (nob.y > limit * (nob.x + nob.y) && nob.y > limit * (nob.y + nob.z)) {
+	else if (N.y > limit * (N.x + N.y) && N.y > limit * (N.y + N.z)) {
 		weight.y = 1.0;
 	}
-	else if (nob.z > limit * (nob.x + nob.z) && nob.z > limit * (nob.y + nob.z)) {
+	else if (N.z > limit * (N.x + N.z) && N.z > limit * (N.y + N.z)) {
 		weight.z = 1.0;
 	}
 	else if (blend > 0.0) {
 		/* in case of blending, test for mixes between two textures */
-		if (nob.z < (1.0 - limit) * (nob.y + nob.x)) {
-			weight.x = nob.x / (nob.x + nob.y);
+		if (N.z < (1.0 - limit) * (N.y + N.x)) {
+			weight.x = N.x / (N.x + N.y);
 			weight.x = clamp((weight.x - 0.5 * (1.0 - blend)) / blend, 0.0, 1.0);
 			weight.y = 1.0 - weight.x;
 		}
-		else if (nob.x < (1.0 - limit) * (nob.y + nob.z)) {
-			weight.y = nob.y / (nob.y + nob.z);
+		else if (N.x < (1.0 - limit) * (N.y + N.z)) {
+			weight.y = N.y / (N.y + N.z);
 			weight.y = clamp((weight.y - 0.5 * (1.0 - blend)) / blend, 0.0, 1.0);
 			weight.z = 1.0 - weight.y;
 		}
-		else if (nob.y < (1.0 - limit) * (nob.x + nob.z)) {
-			weight.x = nob.x / (nob.x + nob.z);
+		else if (N.y < (1.0 - limit) * (N.x + N.z)) {
+			weight.x = N.x / (N.x + N.z);
 			weight.x = clamp((weight.x - 0.5 * (1.0 - blend)) / blend, 0.0, 1.0);
 			weight.z = 1.0 - weight.x;
 		}
 		else {
 			/* last case, we have a mix between three */
-			weight.x = ((2.0 - limit) * nob.x + (limit - 1.0)) / (2.0 * limit - 1.0);
-			weight.y = ((2.0 - limit) * nob.y + (limit - 1.0)) / (2.0 * limit - 1.0);
-			weight.z = ((2.0 - limit) * nob.z + (limit - 1.0)) / (2.0 * limit - 1.0);
+			weight.x = ((2.0 - limit) * N.x + (limit - 1.0)) / (2.0 * limit - 1.0);
+			weight.y = ((2.0 - limit) * N.y + (limit - 1.0)) / (2.0 * limit - 1.0);
+			weight.z = ((2.0 - limit) * N.z + (limit - 1.0)) / (2.0 * limit - 1.0);
 		}
 	}
 	else {
@@ -3179,13 +3181,25 @@ void node_tex_image_box(vec3 texco,
 	}
 	color = vec4(0);
 	if (weight.x > 0.0) {
-		color += weight.x * texture2D(ima, texco.yz);
+		vec2 uv = texco.yz;
+		if(signed_N.x < 0.0) {
+			uv.x = 1.0 - uv.x;
+		}
+		color += weight.x * texture2D(ima, uv);
 	}
 	if (weight.y > 0.0) {
-		color += weight.y * texture2D(ima, texco.xz);
+		vec2 uv = texco.xz;
+		if(signed_N.y > 0.0) {
+			uv.x = 1.0 - uv.x;
+		}
+		color += weight.y * texture2D(ima, uv);
 	}
 	if (weight.z > 0.0) {
-		color += weight.z * texture2D(ima, texco.yx);
+		vec2 uv = texco.yx;
+		if(signed_N.z > 0.0) {
+			uv.x = 1.0 - uv.x;
+		}
+		color += weight.z * texture2D(ima, uv);
 	}
 
 	alpha = color.a;
diff --git a/source/blender/ikplugin/intern/iksolver_plugin.c b/source/blender/ikplugin/intern/iksolver_plugin.c
index 6ea311b2c7b..f837789914e 100644
--- a/source/blender/ikplugin/intern/iksolver_plugin.c
+++ b/source/blender/ikplugin/intern/iksolver_plugin.c
@@ -217,9 +217,27 @@ static void where_is_ik_bone(bPoseChannel *pchan, float ik_mat[3][3])   // nr =
 	copy_m4_m3(ikmat, ik_mat);
 
 	if (pchan->parent)
-		mul_m4_series(pchan->pose_mat, pchan->parent->pose_mat, pchan->chan_mat, ikmat);
+		mul_m4_m4m4(pchan->pose_mat, pchan->parent->pose_mat, pchan->chan_mat);
 	else
-		mul_m4_m4m4(pchan->pose_mat, pchan->chan_mat, ikmat);
+		copy_m4_m4(pchan->pose_mat, pchan->chan_mat);
+
+#ifdef USE_NONUNIFORM_SCALE
+	/* apply IK mat, but as if the bones have uniform scale since the IK solver
+	 * is not aware of non-uniform scale */
+	float scale[3];
+	mat4_to_size(scale, pchan->pose_mat);
+	normalize_v3_length(pchan->pose_mat[0], scale[1]);
+	normalize_v3_length(pchan->pose_mat[2], scale[1]);
+#endif
+
+	mul_m4_m4m4(pchan->pose_mat, pchan->pose_mat, ikmat);
+
+#ifdef USE_NONUNIFORM_SCALE
+	float ik_scale[3];
+	mat3_to_size(ik_scale, ik_mat);
+	normalize_v3_length(pchan->pose_mat[0], scale[0] * ik_scale[0]);
+	normalize_v3_length(pchan->pose_mat[2], scale[2] * ik_scale[2]);
+#endif
 
 	/* calculate head */
 	copy_v3_v3(pchan->pose_head, pchan->pose_mat[3]);
@@ -308,6 +326,10 @@ static void execute_posetree(struct Scene *scene, Object *ob, PoseTree *tree)
 		/* change length based on bone size */
 		length = bone->length * len_v3(R_bonemat[1]);
 
+		/* basis must be pure rotation */
+		normalize_m3(R_bonemat);
+		normalize_m3(R_parmat);
+
 		/* compute rest basis and its inverse */
 		copy_m3_m3(rest_basis, bone->bone_mat);
 		transpose_m3_m3(irest_basis, bone->bone_mat);
@@ -317,11 +339,7 @@ static void execute_posetree(struct Scene *scene, Object *ob, PoseTree *tree)
 		mul_m3_m3m3(full_basis, iR_parmat, R_bonemat);
 		mul_m3_m3m3(basis, irest_basis, full_basis);
 
-		/* basis must be pure rotation */
-		normalize_m3(basis);
-
 		/* transform offset into local bone space */
-		normalize_m3(iR_parmat);
 		mul_m3_v3(iR_parmat, start);
 
 		IK_SetTransform(seg, start, rest_basis, basis, length);
@@ -545,18 +563,6 @@ void iksolver_execute_tree(struct Scene *scene, Object *ob,  bPoseChannel *pchan
 			tree->pchan[a]->flag |= POSE_CHAIN;
 		}
 
-#ifdef USE_NONUNIFORM_SCALE
-		float (*pchan_scale_data)[3] = MEM_mallocN(sizeof(float[3]) * tree->totchannel, __func__);
-
-		for (a = 0; a < tree->totchannel; a++) {
-			mat4_to_size(pchan_scale_data[a], tree->pchan[a]->pose_mat);
-
-			/* make uniform at y scale since this controls the length */
-			normalize_v3_length(tree->pchan[a]->pose_mat[0], pchan_scale_data[a][1]);
-			normalize_v3_length(tree->pchan[a]->pose_mat[2], pchan_scale_data[a][1]);
-		}
-#endif
-
 		/* 5. execute the IK solver */
 		execute_posetree(scene, ob, tree);
 
@@ -571,14 +577,6 @@ void iksolver_execute_tree(struct Scene *scene, Object *ob,  bPoseChannel *pchan
 			where_is_ik_bone(tree->pchan[a], tree->basis_change[a]);
 		}
 
-#ifdef USE_NONUNIFORM_SCALE
-		for (a = 0; a < tree->totchannel; a++) {
-			normalize_v3_length(tree->pchan[a]->pose_mat[0], pchan_scale_data[a][0]);
-			normalize_v3_length(tree->pchan[a]->pose_mat[2], pchan_scale_data[a][2]);
-		}
-		MEM_freeN(pchan_scale_data);
-#endif
-
 		/* 7. and free */
 		BLI_remlink(&pchan_root->iktree, tree);
 		free_posetree(tree);
diff --git a/source/blender/imbuf/CMakeLists.txt b/source/blender/imbuf/CMakeLists.txt
index b32f8c54cd6..c3950d8eb83 100644
--- a/source/blender/imbuf/CMakeLists.txt
+++ b/source/blender/imbuf/CMakeLists.txt
@@ -130,16 +130,6 @@ if(WITH_CODEC_AVI)
 	add_definitions(-DWITH_AVI)
 endif()
 
-if(WITH_CODEC_QUICKTIME)
-	list(APPEND INC
-		../quicktime
-	)
-	list(APPEND INC_SYS
-		${QUICKTIME_INCLUDE_DIRS}
-	)
-	add_definitions(-DWITH_QUICKTIME)
-endif()
-
 if(WITH_CODEC_FFMPEG)
 	list(APPEND INC
 		../../../intern/ffmpeg
diff --git a/source/blender/imbuf/IMB_imbuf.h b/source/blender/imbuf/IMB_imbuf.h
index e7abfdc7d67..f1f36351e79 100644
--- a/source/blender/imbuf/IMB_imbuf.h
+++ b/source/blender/imbuf/IMB_imbuf.h
@@ -205,6 +205,7 @@ typedef enum IMB_BlendMode {
 	IMB_BLEND_SATURATION = 21,
 	IMB_BLEND_LUMINOSITY = 22,
 	IMB_BLEND_COLOR	= 23,
+	IMB_BLEND_INTERPOLATE = 24,
 
 	IMB_BLEND_COPY = 1000,
 	IMB_BLEND_COPY_RGB = 1001,
diff --git a/source/blender/imbuf/IMB_imbuf_types.h b/source/blender/imbuf/IMB_imbuf_types.h
index 1701c2ba307..ee51854d7ed 100644
--- a/source/blender/imbuf/IMB_imbuf_types.h
+++ b/source/blender/imbuf/IMB_imbuf_types.h
@@ -295,7 +295,6 @@ typedef struct ImBuf {
 
 #endif  /* DDS */
 extern const char *imb_ext_image[];
-extern const char *imb_ext_image_qt[];
 extern const char *imb_ext_movie[];
 extern const char *imb_ext_audio[];
 
diff --git a/source/blender/imbuf/intern/IMB_anim.h b/source/blender/imbuf/intern/IMB_anim.h
index 6d7ad7985f9..b10ae4f6fe9 100644
--- a/source/blender/imbuf/intern/IMB_anim.h
+++ b/source/blender/imbuf/intern/IMB_anim.h
@@ -63,12 +63,6 @@
 #  include "AVI_avi.h"
 #endif
 
-#ifdef WITH_QUICKTIME
-#  if defined(_WIN32) || defined(__APPLE__)
-#    include "quicktime_import.h"
-#  endif /* _WIN32 || __APPLE__ */
-#endif /* WITH_QUICKTIME */
-
 #include "IMB_imbuf_types.h"
 #include "IMB_imbuf.h"
 
@@ -137,11 +131,6 @@ struct anim {
 	PGETFRAME pgf;
 #endif
 
-#ifdef WITH_QUICKTIME
-	/* quicktime */
-	struct _QuicktimeMovie *qtime;
-#endif /* WITH_QUICKTIME */
-
 #ifdef WITH_FFMPEG
 	AVFormatContext *pFormatCtx;
 	AVCodecContext *pCodecCtx;
diff --git a/source/blender/imbuf/intern/anim_movie.c b/source/blender/imbuf/intern/anim_movie.c
index 9806ff006d7..25b0c0d7b1a 100644
--- a/source/blender/imbuf/intern/anim_movie.c
+++ b/source/blender/imbuf/intern/anim_movie.c
@@ -73,12 +73,6 @@
 #  include "AVI_avi.h"
 #endif
 
-#ifdef WITH_QUICKTIME
-#if defined(_WIN32) || defined(__APPLE__)
-#include "quicktime_import.h"
-#endif /* _WIN32 || __APPLE__ */
-#endif /* WITH_QUICKTIME */
-
 #include "IMB_imbuf_types.h"
 #include "IMB_imbuf.h"
 
@@ -221,9 +215,6 @@ void IMB_free_anim(struct anim *anim)
 	free_anim_avi(anim);
 #endif
 
-#ifdef WITH_QUICKTIME
-	free_anim_quicktime(anim);
-#endif
 #ifdef WITH_FFMPEG
 	free_anim_ffmpeg(anim);
 #endif
@@ -513,6 +504,11 @@ static int startffmpeg(struct anim *anim)
 		avformat_close_input(&pFormatCtx);
 		return -1;
 	}
+	if (pCodecCtx->pix_fmt == AV_PIX_FMT_NONE) {
+		avcodec_close(anim->pCodecCtx);
+		avformat_close_input(&pFormatCtx);
+		return -1;
+	}
 
 	frame_rate = av_get_r_frame_rate_compat(pFormatCtx->streams[videoStream]);
 	if (pFormatCtx->streams[videoStream]->nb_frames != 0) {
@@ -1214,9 +1210,6 @@ static ImBuf *anim_getnew(struct anim *anim)
 	free_anim_avi(anim);
 #endif
 
-#ifdef WITH_QUICKTIME
-	free_anim_quicktime(anim);
-#endif
 #ifdef WITH_FFMPEG
 	free_anim_ffmpeg(anim);
 #endif
@@ -1245,12 +1238,6 @@ static ImBuf *anim_getnew(struct anim *anim)
 			ibuf = IMB_allocImBuf(anim->x, anim->y, 24, 0);
 			break;
 #endif
-#ifdef WITH_QUICKTIME
-		case ANIM_QTIME:
-			if (startquicktime(anim)) return (0);
-			ibuf = IMB_allocImBuf(anim->x, anim->y, 24, 0);
-			break;
-#endif
 #ifdef WITH_FFMPEG
 		case ANIM_FFMPEG:
 			if (startffmpeg(anim)) return (0);
@@ -1340,21 +1327,6 @@ struct ImBuf *IMB_anim_absolute(struct anim *anim, int position,
 				anim->curposition = position;
 			break;
 #endif
-#ifdef WITH_QUICKTIME
-		case ANIM_QTIME:
-			ibuf = qtime_fetchibuf(anim, position);
-			if (ibuf) {
-				if (ibuf->rect) {
-					/* OCIO_TODO: should happen in quicktime module, but it currently doesn't have access
-					 *            to color management's internals
-					 */
-					ibuf->rect_colorspace = colormanage_colorspace_get_named(anim->colorspace);
-				}
-
-				anim->curposition = position;
-			}
-			break;
-#endif
 #ifdef WITH_FFMPEG
 		case ANIM_FFMPEG:
 			ibuf = ffmpeg_fetchibuf(anim, position, tc);
diff --git a/source/blender/imbuf/intern/colormanagement.c b/source/blender/imbuf/intern/colormanagement.c
index 03f71b5878c..863bce125c5 100644
--- a/source/blender/imbuf/intern/colormanagement.c
+++ b/source/blender/imbuf/intern/colormanagement.c
@@ -47,6 +47,7 @@
 #include "IMB_imbuf.h"
 #include "IMB_imbuf_types.h"
 #include "IMB_filetype.h"
+#include "IMB_filter.h"
 #include "IMB_moviecache.h"
 
 #include "MEM_guardedalloc.h"
@@ -1521,6 +1522,10 @@ static bool is_ibuf_rect_in_display_space(ImBuf *ibuf, const ColorManagedViewSet
 	{
 		const char *from_colorspace = ibuf->rect_colorspace->name;
 		const char *to_colorspace = IMB_colormanagement_get_display_colorspace_name(view_settings, display_settings);
+		ColorManagedLook *look_descr = colormanage_look_get_named(view_settings->look);
+		if (look_descr != NULL && !STREQ(look_descr->process_space, "")) {
+			return false;
+		}
 
 		if (to_colorspace && STREQ(from_colorspace, to_colorspace))
 			return true;
@@ -1635,12 +1640,13 @@ static void *do_processor_transform_thread(void *handle_v)
 	if (float_from_byte) {
 		IMB_buffer_float_from_byte(float_buffer, byte_buffer,
 		                           IB_PROFILE_SRGB, IB_PROFILE_SRGB,
-		                           true,
+		                           false,
 		                           width, height, width, width);
-			IMB_colormanagement_processor_apply(handle->cm_processor,
-			                                    float_buffer,
-			                                    width, height, channels,
-			                                    predivide);
+		IMB_colormanagement_processor_apply(handle->cm_processor,
+		                                    float_buffer,
+		                                    width, height, channels,
+		                                    predivide);
+		IMB_premultiply_rect_float(float_buffer, 4, width, height);
 	}
 	else {
 		if (byte_buffer != NULL) {
@@ -1776,14 +1782,15 @@ void IMB_colormanagement_transform_from_byte_threaded(float *float_buffer, unsig
 		 */
 		IMB_buffer_float_from_byte(float_buffer, byte_buffer,
 		                           IB_PROFILE_SRGB, IB_PROFILE_SRGB,
-		                           true,
+		                           false,
 		                           width, height, width, width);
+		IMB_premultiply_rect_float(float_buffer, 4, width, height);
 		return;
 	}
 	cm_processor = IMB_colormanagement_colorspace_processor_new(from_colorspace, to_colorspace);
 	processor_transform_apply_threaded(byte_buffer, float_buffer,
 	                                   width, height, channels,
-	                                   cm_processor, true, true);
+	                                   cm_processor, false, true);
 	IMB_colormanagement_processor_free(cm_processor);
 }
 
@@ -2565,6 +2572,14 @@ const char *IMB_colormanagement_colorspace_get_indexed_name(int index)
 
 void IMB_colormanagment_colorspace_from_ibuf_ftype(ColorManagedColorspaceSettings *colorspace_settings, ImBuf *ibuf)
 {
+	/* Don't modify non-color data space, it does not change with file type. */
+	ColorSpace *colorspace = colormanage_colorspace_get_named(colorspace_settings->name);
+
+	if (colorspace && colorspace->is_data) {
+		return;
+	}
+
+	/* Get color space from file type. */
 	const ImFileType *type;
 
 	for (type = IMB_FILE_TYPES; type < IMB_FILE_TYPES_LAST; type++) {
diff --git a/source/blender/imbuf/intern/filetype.c b/source/blender/imbuf/intern/filetype.c
index 3d3e8a0646a..7ed5c8ffbcb 100644
--- a/source/blender/imbuf/intern/filetype.c
+++ b/source/blender/imbuf/intern/filetype.c
@@ -47,10 +47,6 @@
 #include "dds/dds_api.h"
 #endif
 
-#ifdef WITH_QUICKTIME
-#include "quicktime_import.h"
-#endif
-
 static int imb_ftype_default(const ImFileType *type, ImBuf *ibuf)
 {
 	return (ibuf->ftype == type->filetype);
@@ -101,10 +97,6 @@ void imb_filetypes_init(void)
 	for (type = IMB_FILE_TYPES; type < IMB_FILE_TYPES_LAST; type++)
 		if (type->init)
 			type->init();
-
-#ifdef WITH_QUICKTIME
-	quicktime_init();
-#endif
 }
 
 void imb_filetypes_exit(void)
@@ -114,9 +106,5 @@ void imb_filetypes_exit(void)
 	for (type = IMB_FILE_TYPES; type < IMB_FILE_TYPES_LAST; type++)
 		if (type->exit)
 			type->exit();
-
-#ifdef WITH_QUICKTIME
-	quicktime_exit();
-#endif
 }
 
diff --git a/source/blender/imbuf/intern/iris.c b/source/blender/imbuf/intern/iris.c
index 7a9fa2b9768..6c0849358a5 100644
--- a/source/blender/imbuf/intern/iris.c
+++ b/source/blender/imbuf/intern/iris.c
@@ -48,36 +48,24 @@
 #define IMAGIC 0732
 
 typedef struct {
-	unsigned short  imagic;      /* stuff saved on disk . . */
-	unsigned short  type;
-	unsigned short  dim;
-	unsigned short  xsize;
-	unsigned short  ysize;
-	unsigned short  zsize;
-	unsigned int    min;
-	unsigned int    max;
-	unsigned int    wastebytes;
-	char name[80];
-	unsigned int    colormap;
-
-	int file;               /* stuff used in core only */
-	unsigned short  flags;
-	short           dorev;
-	short           x;
-	short           y;
-	short           z;
-	short           cnt;
-	unsigned short *ptr;
-	unsigned short *base;
-	unsigned short *tmpbuf;
-	unsigned int    offset;
-	unsigned int    rleend;        /* for rle images */
-	unsigned int   *rowstart;  /* for rle images */
-	const int            *rowsize;   /* for rle images */
+	ushort  imagic;      /* stuff saved on disk . . */
+	ushort  type;
+	ushort  dim;
+	ushort  xsize;
+	ushort  ysize;
+	ushort  zsize;
+	uint    min;
+	uint    max;
+	uchar   _pad1[4];
+	char    name[80];
+	uint    colormap;
+	uchar   _pad2[404];
 } IMAGE;
 
 #define HEADER_SIZE 512
 
+BLI_STATIC_ASSERT(sizeof(IMAGE) == HEADER_SIZE, "Invalid header size");
+
 #define RINTLUM (79)
 #define GINTLUM (156)
 #define BINTLUM (21)
@@ -106,68 +94,72 @@ typedef struct {
 /* local struct for mem access */
 typedef struct MFileOffset {
 	const uchar *_file_data;
-	unsigned int _file_offset;
+	uint _file_offset;
 } MFileOffset;
 
-#define MFILE_DATA(inf) ((void)0, (inf)->_file_data + (inf)->_file_offset)
+#define MFILE_DATA(inf) ((void)0, ((inf)->_file_data + (inf)->_file_offset))
 #define MFILE_STEP(inf, step) { (inf)->_file_offset += step; } ((void)0)
 #define MFILE_SEEK(inf, pos)  { (inf)->_file_offset  = pos;  } ((void)0)
 
+/* error flags */
+#define DIRTY_FLAG_EOF (1 << 0)
+#define DIRTY_FLAG_ENCODING (1 << 1)
+
 /* funcs */
 static void readheader(MFileOffset *inf, IMAGE *image);
 static int writeheader(FILE *outf, IMAGE *image);
 
-static unsigned short getshort(MFileOffset *inf);
-static unsigned int getlong(MFileOffset *inf);
-static void putshort(FILE *outf, unsigned short val);
-static int putlong(FILE *outf, unsigned int val);
-static int writetab(FILE *outf, unsigned int *tab, int len);
-static void readtab(MFileOffset *inf, unsigned int *tab, int len);
+static ushort getshort(MFileOffset *inf);
+static uint getlong(MFileOffset *inf);
+static void putshort(FILE *outf, ushort val);
+static int putlong(FILE *outf, uint val);
+static int writetab(FILE *outf, uint *tab, int len);
+static void readtab(MFileOffset *inf, uint *tab, int len);
 
-static void expandrow(unsigned char *optr, const unsigned char *iptr, int z);
-static void expandrow2(float *optr, const unsigned char *iptr, int z);
-static void interleaverow(unsigned char *lptr, const unsigned char *cptr, int z, int n);
-static void interleaverow2(float *lptr, const unsigned char *cptr, int z, int n);
-static int compressrow(unsigned char *lbuf, unsigned char *rlebuf, int z, int cnt);
-static void lumrow(unsigned char *rgbptr, unsigned char *lumptr, int n);
+static int expandrow(uchar *optr, const uchar *optr_end, const uchar *iptr, const uchar *iptr_end, int z);
+static int expandrow2(float *optr, const float *optr_end, const uchar *iptr, const uchar *iptr_end, int z);
+static void interleaverow(uchar *lptr, const uchar *cptr, int z, int n);
+static void interleaverow2(float *lptr, const uchar *cptr, int z, int n);
+static int compressrow(uchar *lbuf, uchar *rlebuf, int z, int cnt);
+static void lumrow(uchar *rgbptr, uchar *lumptr, int n);
 
 /*
  *	byte order independent read/write of shorts and ints.
  *
  */
 
-static unsigned short getshort(MFileOffset *inf)
+static ushort getshort(MFileOffset *inf)
 {
-	const unsigned char *buf;
+	const uchar *buf;
 
 	buf = MFILE_DATA(inf);
 	MFILE_STEP(inf, 2);
-	
-	return (buf[0] << 8) + (buf[1] << 0);
+
+	return ((ushort)buf[0] << 8) + ((ushort)buf[1] << 0);
 }
 
-static unsigned int getlong(MFileOffset *mofs)
+static uint getlong(MFileOffset *mofs)
 {
-	const unsigned char *buf;
+	const uchar *buf;
 	
 	buf = MFILE_DATA(mofs);
 	MFILE_STEP(mofs, 4);
-	
-	return (buf[0] << 24) + (buf[1] << 16) + (buf[2] << 8) + (buf[3] << 0);
+
+	return ((uint)buf[0] << 24) + ((uint)buf[1] << 16) + ((uint)buf[2] << 8) + ((uint)buf[3] << 0);
 }
 
-static void putshort(FILE *outf, unsigned short val)
+static void putshort(FILE *outf, ushort val)
 {
-	unsigned char buf[2];
+	uchar buf[2];
 
 	buf[0] = (val >> 8);
 	buf[1] = (val >> 0);
 	fwrite(buf, 2, 1, outf);
 }
 
-static int putlong(FILE *outf, unsigned int val)
+static int putlong(FILE *outf, uint val)
 {
-	unsigned char buf[4];
+	uchar buf[4];
 
 	buf[0] = (val >> 24);
 	buf[1] = (val >> 16);
@@ -205,7 +197,7 @@ static int writeheader(FILE *outf, IMAGE *image)
 	return fwrite("no name", 8, 1, outf);
 }
 
-static int writetab(FILE *outf, unsigned int *tab, int len)
+static int writetab(FILE *outf, uint *tab, int len)
 {
 	int r = 0;
 
@@ -216,7 +208,7 @@ static int writetab(FILE *outf, unsigned int *tab, int len)
 	return r;
 }
 
-static void readtab(MFileOffset *inf, unsigned int *tab, int len)
+static void readtab(MFileOffset *inf, uint *tab, int len)
 {
 	while (len) {
 		*tab++ = getlong(inf);
@@ -242,12 +234,12 @@ static void test_endian_zbuf(struct ImBuf *ibuf)
 }
 
 /* from misc_util: flip the bytes from x  */
-#define GS(x) (((unsigned char *)(x))[0] << 8 | ((unsigned char *)(x))[1])
+#define GS(x) (((uchar *)(x))[0] << 8 | ((uchar *)(x))[1])
 
 /* this one is only def-ed once, strangely... */
 #define GSS(x) (((uchar *)(x))[1] << 8 | ((uchar *)(x))[0])
 
-int imb_is_a_iris(const unsigned char *mem)
+int imb_is_a_iris(const uchar *mem)
 {
 	return ((GS(mem) == IMAGIC) || (GSS(mem) == IMAGIC));
 }
@@ -259,46 +251,52 @@ int imb_is_a_iris(const unsigned char *mem)
  *
  */
 
-struct ImBuf *imb_loadiris(const unsigned char *mem, size_t size, int flags, char colorspace[IM_MAX_SPACE])
+struct ImBuf *imb_loadiris(const uchar *mem, size_t size, int flags, char colorspace[IM_MAX_SPACE])
 {
-	unsigned int *base, *lptr = NULL;
+	uint *base, *lptr = NULL;
 	float *fbase, *fptr = NULL;
-	unsigned int *zbase, *zptr;
-	const unsigned char *rledat;
-	unsigned int *starttab, *lengthtab;
+	uint *zbase, *zptr;
+	const uchar *rledat;
+	const uchar *mem_end = mem + size;
 	MFileOffset _inf_data = {mem, 0}, *inf = &_inf_data;
 	IMAGE image;
 	int x, y, z, tablen;
-	int xsize, ysize, zsize;
 	int bpp, rle, cur, badorder;
 	ImBuf *ibuf;
+	uchar dirty_flag = 0;
 
-	(void)size; /* unused */
-	
-	if (!imb_is_a_iris(mem)) return NULL;
+	if (size < HEADER_SIZE) {
+		return NULL;
+	}
+
+	if (!imb_is_a_iris(mem)) {
+		return NULL;
+	}
 
 	/* OCIO_TODO: only tested with 1 byte per pixel, not sure how to test with other settings */
 	colorspace_set_default_role(colorspace, IM_MAX_SPACE, COLOR_ROLE_DEFAULT_BYTE);
 
-	/*printf("new iris\n");*/
-	
 	readheader(inf, &image);
 	if (image.imagic != IMAGIC) {
 		fprintf(stderr, "longimagedata: bad magic number in image file\n");
 		return(NULL);
 	}
-	
+
 	rle = ISRLE(image.type);
 	bpp = BPP(image.type);
 	if (bpp != 1 && bpp != 2) {
 		fprintf(stderr, "longimagedata: image must have 1 or 2 byte per pix chan\n");
 		return(NULL);
 	}
-	
-	xsize = image.xsize;
-	ysize = image.ysize;
-	zsize = image.zsize;
-	
+	if ((uint)image.zsize > 8) {
+		fprintf(stderr, "longimagedata: channels over 8 not supported\n");
+		return(NULL);
+	}
+
+	const int xsize = image.xsize;
+	const int ysize = image.ysize;
+	const int zsize = image.zsize;
+
 	if (flags & IB_test) {
 		ibuf = IMB_allocImBuf(image.xsize, image.ysize, 8 * image.zsize, 0);
 		if (ibuf) ibuf->ftype = IMB_FTYPE_IMAGIC;
@@ -306,12 +304,17 @@ struct ImBuf *imb_loadiris(const unsigned char *mem, size_t size, int flags, cha
 	}
 	
 	if (rle) {
-		
 		tablen = ysize * zsize * sizeof(int);
-		starttab = (unsigned int *)MEM_mallocN(tablen, "iris starttab");
-		lengthtab = (unsigned int *)MEM_mallocN(tablen, "iris endtab");
 		MFILE_SEEK(inf, HEADER_SIZE);
-		
+
+		uint *starttab = MEM_mallocN(tablen, "iris starttab");
+		uint *lengthtab = MEM_mallocN(tablen, "iris endtab");
+
+#define MFILE_CAPACITY_AT_PTR_OK_OR_FAIL(p) \
+		if (UNLIKELY((p) > mem_end)) { dirty_flag |= DIRTY_FLAG_EOF; goto fail_rle; } ((void)0)
+
+		MFILE_CAPACITY_AT_PTR_OK_OR_FAIL(MFILE_DATA(inf) + ((4 * 2) * tablen));
+
 		readtab(inf, starttab, tablen);
 		readtab(inf, lengthtab, tablen);
 	
@@ -335,7 +338,7 @@ struct ImBuf *imb_loadiris(const unsigned char *mem, size_t size, int flags, cha
 			ibuf = IMB_allocImBuf(xsize, ysize, 8 * zsize, IB_rect);
 			if (ibuf->planes > 32) ibuf->planes = 32;
 			base = ibuf->rect;
-			zbase = (unsigned int *)ibuf->zbuf;
+			zbase = (uint *)ibuf->zbuf;
 			
 			if (badorder) {
 				for (z = 0; z < zsize; z++) {
@@ -344,9 +347,11 @@ struct ImBuf *imb_loadiris(const unsigned char *mem, size_t size, int flags, cha
 						MFILE_SEEK(inf, starttab[y + z * ysize]);
 						rledat = MFILE_DATA(inf);
 						MFILE_STEP(inf, lengthtab[y + z * ysize]);
-						
-						expandrow((uchar *)lptr, rledat, 3 - z);
-						lptr += xsize;
+						const uchar *rledat_next = MFILE_DATA(inf);
+						uint *lptr_next = lptr + xsize;
+						MFILE_CAPACITY_AT_PTR_OK_OR_FAIL(rledat_next);
+						dirty_flag |= expandrow((uchar *)lptr, (uchar *)lptr_next, rledat, rledat_next, 3 - z);
+						lptr = lptr_next;
 					}
 				}
 			}
@@ -354,17 +359,25 @@ struct ImBuf *imb_loadiris(const unsigned char *mem, size_t size, int flags, cha
 				lptr = base;
 				zptr = zbase;
 				for (y = 0; y < ysize; y++) {
-				
+
+					uint *lptr_next = lptr + xsize;
+					uint *zptr_next = zptr + xsize;
+
 					for (z = 0; z < zsize; z++) {
 						MFILE_SEEK(inf, starttab[y + z * ysize]);
 						rledat = MFILE_DATA(inf);
 						MFILE_STEP(inf, lengthtab[y + z * ysize]);
-						
-						if (z < 4) expandrow((uchar *)lptr, rledat, 3 - z);
-						else if (z < 8) expandrow((uchar *)zptr, rledat, 7 - z);
+						const uchar *rledat_next = MFILE_DATA(inf);
+						MFILE_CAPACITY_AT_PTR_OK_OR_FAIL(rledat_next);
+						if (z < 4) {
+							dirty_flag |= expandrow((uchar *)lptr, (uchar *)lptr_next, rledat, rledat_next, 3 - z);
+						}
+						else if (z < 8) {
+							dirty_flag |= expandrow((uchar *)zptr, (uchar *)zptr_next, rledat, rledat_next, 7 - z);
+						}
 					}
-					lptr += xsize;
-					zptr += xsize;
+					lptr = lptr_next;
+					zptr = zptr_next;
 				}
 			}
 			
@@ -383,14 +396,17 @@ struct ImBuf *imb_loadiris(const unsigned char *mem, size_t size, int flags, cha
 						MFILE_SEEK(inf, starttab[y + z * ysize]);
 						rledat = MFILE_DATA(inf);
 						MFILE_STEP(inf, lengthtab[y + z * ysize]);
-						
-						expandrow2(fptr, rledat, 3 - z);
-						fptr += xsize * 4;
+						const uchar *rledat_next = MFILE_DATA(inf);
+						MFILE_CAPACITY_AT_PTR_OK_OR_FAIL(rledat_next);
+						float *fptr_next = fptr + (xsize * 4);
+						dirty_flag |= expandrow2(fptr, fptr_next, rledat, rledat_next, 3 - z);
+						fptr = fptr_next;
 					}
 				}
 			}
 			else {
 				fptr = fbase;
+				float *fptr_next = fptr + (xsize * 4);
 
 				for (y = 0; y < ysize; y++) {
 				
@@ -398,27 +414,31 @@ struct ImBuf *imb_loadiris(const unsigned char *mem, size_t size, int flags, cha
 						MFILE_SEEK(inf, starttab[y + z * ysize]);
 						rledat = MFILE_DATA(inf);
 						MFILE_STEP(inf, lengthtab[y + z * ysize]);
-						
-						expandrow2(fptr, rledat, 3 - z);
-						
+						const uchar *rledat_next = MFILE_DATA(inf);
+						MFILE_CAPACITY_AT_PTR_OK_OR_FAIL(rledat_next);
+						dirty_flag |= expandrow2(fptr, fptr_next, rledat, rledat_next, 3 - z);
 					}
-					fptr += xsize * 4;
+					fptr = fptr_next;
 				}
 			}
 		}
-		
+#undef MFILE_CAPACITY_AT_PTR_OK_OR_FAIL
+fail_rle:
 		MEM_freeN(starttab);
 		MEM_freeN(lengthtab);
-
 	}
 	else {
+
+#define MFILE_CAPACITY_AT_PTR_OK_OR_FAIL(p) \
+		if (UNLIKELY((p) > mem_end)) { dirty_flag |= DIRTY_FLAG_EOF; goto fail_uncompressed; } ((void)0)
+
 		if (bpp == 1) {
 			
 			ibuf = IMB_allocImBuf(xsize, ysize, 8 * zsize, IB_rect);
 			if (ibuf->planes > 32) ibuf->planes = 32;
 
 			base = ibuf->rect;
-			zbase = (unsigned int *)ibuf->zbuf;
+			zbase = (uint *)ibuf->zbuf;
 			
 			MFILE_SEEK(inf, HEADER_SIZE);
 			rledat = MFILE_DATA(inf);
@@ -427,12 +447,13 @@ struct ImBuf *imb_loadiris(const unsigned char *mem, size_t size, int flags, cha
 				
 				if (z < 4) lptr = base;
 				else if (z < 8) lptr = zbase;
-				
-				for (y = 0; y < ysize; y++) {
 
-					interleaverow((uchar *)lptr, rledat, 3 - z, xsize);
-					rledat += xsize;
-					
+				for (y = 0; y < ysize; y++) {
+					const uchar *rledat_next = rledat + xsize;
+					const int z_ofs = 3 - z;
+					MFILE_CAPACITY_AT_PTR_OK_OR_FAIL(rledat_next + z_ofs);
+					interleaverow((uchar *)lptr, rledat, z_ofs, xsize);
+					rledat = rledat_next;
 					lptr += xsize;
 				}
 			}
@@ -450,20 +471,23 @@ struct ImBuf *imb_loadiris(const unsigned char *mem, size_t size, int flags, cha
 			for (z = 0; z < zsize; z++) {
 				
 				fptr = fbase;
-				
-				for (y = 0; y < ysize; y++) {
 
-					interleaverow2(fptr, rledat, 3 - z, xsize);
-					rledat += xsize * 2;
-					
+				for (y = 0; y < ysize; y++) {
+					const uchar *rledat_next = rledat + xsize * 2;
+					const int z_ofs = 3 - z;
+					MFILE_CAPACITY_AT_PTR_OK_OR_FAIL(rledat_next + z_ofs);
+					interleaverow2(fptr, rledat, z_ofs, xsize);
+					rledat = rledat_next;
 					fptr += xsize * 4;
 				}
 			}
 			
 		}
+#undef MFILE_CAPACITY_AT_PTR_OK_OR_FAIL
+fail_uncompressed:
+		(void)0;
 	}
-	
-	
+
 	if (bpp == 1) {
 		uchar *rect;
 		
@@ -528,6 +552,9 @@ struct ImBuf *imb_loadiris(const unsigned char *mem, size_t size, int flags, cha
 		
 	}
 
+	if (dirty_flag) {
+		fprintf(stderr, "longimagedata: corrupt file content (%d)\n", dirty_flag);
+	}
 	ibuf->ftype = IMB_FTYPE_IMAGIC;
 
 	test_endian_zbuf(ibuf);
@@ -541,7 +568,7 @@ struct ImBuf *imb_loadiris(const unsigned char *mem, size_t size, int flags, cha
 
 /* static utility functions for longimagedata */
 
-static void interleaverow(unsigned char *lptr, const unsigned char *cptr, int z, int n)
+static void interleaverow(uchar *lptr, const uchar *cptr, int z, int n)
 {
 	lptr += z;
 	while (n--) {
@@ -550,7 +577,7 @@ static void interleaverow(unsigned char *lptr, const unsigned char *cptr, int z,
 	}
 }
 
-static void interleaverow2(float *lptr, const unsigned char *cptr, int z, int n)
+static void interleaverow2(float *lptr, const uchar *cptr, int z, int n)
 {
 	lptr += z;
 	while (n--) {
@@ -560,19 +587,34 @@ static void interleaverow2(float *lptr, const unsigned char *cptr, int z, int n)
 	}
 }
 
-static void expandrow2(float *optr, const unsigned char *iptr, int z)
+static int expandrow2(
+        float *optr, const float *optr_end,
+        const uchar *iptr, const uchar *iptr_end, int z)
 {
-	unsigned short pixel, count;
+	ushort pixel, count;
 	float pixel_f;
 
+#define EXPAND_CAPACITY_AT_INPUT_OK_OR_FAIL(iptr_next) \
+	if (UNLIKELY(iptr_next > iptr_end)) { goto fail; }
+
+#define EXPAND_CAPACITY_AT_OUTPUT_OK_OR_FAIL(optr_next) \
+	if (UNLIKELY(optr_next > optr_end)) { goto fail; }
+
 	optr += z;
+	optr_end += z;
 	while (1) {
+		const uchar *iptr_next = iptr + 2;
+		EXPAND_CAPACITY_AT_INPUT_OK_OR_FAIL(iptr_next);
 		pixel = (iptr[0] << 8) | (iptr[1] << 0);
-		iptr += 2;
-		
+		iptr = iptr_next;
+
 		if (!(count = (pixel & 0x7f)) )
-			return;
+			return false;
+		const float *optr_next = optr + count;
+		EXPAND_CAPACITY_AT_OUTPUT_OK_OR_FAIL(optr_next);
 		if (pixel & 0x80) {
+			iptr_next = iptr + (count * 2);
+			EXPAND_CAPACITY_AT_INPUT_OK_OR_FAIL(iptr_next);
 			while (count >= 8) {
 				optr[0 * 4] = ((iptr[0] << 8) | (iptr[1] << 0)) / (float)0xFFFF;
 				optr[1 * 4] = ((iptr[2] << 8) | (iptr[3] << 0)) / (float)0xFFFF;
@@ -591,10 +633,13 @@ static void expandrow2(float *optr, const unsigned char *iptr, int z)
 				iptr += 2;
 				optr += 4;
 			}
+			BLI_assert(iptr == iptr_next);
 		}
 		else {
+			iptr_next = iptr + 2;
+			EXPAND_CAPACITY_AT_INPUT_OK_OR_FAIL(iptr_next);
 			pixel_f = ((iptr[0] << 8) | (iptr[1] << 0)) / (float)0xFFFF;
-			iptr += 2;
+			iptr = iptr_next;
 
 			while (count >= 8) {
 				optr[0 * 4] = pixel_f;
@@ -612,20 +657,45 @@ static void expandrow2(float *optr, const unsigned char *iptr, int z)
 				*optr = pixel_f;
 				optr += 4;
 			}
+			BLI_assert(iptr == iptr_next);
 		}
+		BLI_assert(optr == optr_next);
 	}
+	return false;
+
+#undef EXPAND_CAPACITY_AT_INPUT_OK_OR_FAIL
+#undef EXPAND_CAPACITY_AT_OUTPUT_OK_OR_FAIL
+fail:
+	return DIRTY_FLAG_ENCODING;
 }
 
-static void expandrow(unsigned char *optr, const unsigned char *iptr, int z)
+static int expandrow(
+        uchar *optr, const uchar *optr_end,
+        const uchar *iptr, const uchar *iptr_end, int z)
 {
-	unsigned char pixel, count;
+	uchar pixel, count;
+
+#define EXPAND_CAPACITY_AT_INPUT_OK_OR_FAIL(iptr_next) \
+	if (UNLIKELY(iptr_next > iptr_end)) { goto fail; }
+
+#define EXPAND_CAPACITY_AT_OUTPUT_OK_OR_FAIL(optr_next) \
+	if (UNLIKELY(optr_next > optr_end)) { goto fail; }
 
 	optr += z;
+	optr_end += z;
 	while (1) {
-		pixel = *iptr++;
+		const uchar *iptr_next = iptr + 1;
+		EXPAND_CAPACITY_AT_INPUT_OK_OR_FAIL(iptr_next);
+		pixel = *iptr;
+		iptr = iptr_next;
 		if (!(count = (pixel & 0x7f)) )
-			return;
+			return false;
+		const uchar *optr_next = optr + ((int)count * 4);
+		EXPAND_CAPACITY_AT_OUTPUT_OK_OR_FAIL(optr_next);
+
 		if (pixel & 0x80) {
+			iptr_next = iptr + count;
+			EXPAND_CAPACITY_AT_INPUT_OK_OR_FAIL(iptr_next);
 			while (count >= 8) {
 				optr[0 * 4] = iptr[0];
 				optr[1 * 4] = iptr[1];
@@ -643,8 +713,11 @@ static void expandrow(unsigned char *optr, const unsigned char *iptr, int z)
 				*optr = *iptr++;
 				optr += 4;
 			}
+			BLI_assert(iptr == iptr_next);
 		}
 		else {
+			iptr_next = iptr + 1;
+			EXPAND_CAPACITY_AT_INPUT_OK_OR_FAIL(iptr_next);
 			pixel = *iptr++;
 			while (count >= 8) {
 				optr[0 * 4] = pixel;
@@ -662,8 +735,17 @@ static void expandrow(unsigned char *optr, const unsigned char *iptr, int z)
 				*optr = pixel;
 				optr += 4;
 			}
+			BLI_assert(iptr == iptr_next);
 		}
+		BLI_assert(optr == optr_next);
 	}
+
+	return false;
+
+#undef EXPAND_CAPACITY_AT_INPUT_OK_OR_FAIL
+#undef EXPAND_CAPACITY_AT_OUTPUT_OK_OR_FAIL
+fail:
+	return DIRTY_FLAG_ENCODING;
 }
 
 /*
@@ -679,14 +761,14 @@ static void expandrow(unsigned char *optr, const unsigned char *iptr, int z)
  *  Added: zbuf write
  */
 
-static int output_iris(unsigned int *lptr, int xsize, int ysize, int zsize, const char *name, int *zptr)
+static int output_iris(uint *lptr, int xsize, int ysize, int zsize, const char *name, int *zptr)
 {
 	FILE *outf;
 	IMAGE *image;
 	int tablen, y, z, pos, len = 0;
-	unsigned int *starttab, *lengthtab;
-	unsigned char *rlebuf;
-	unsigned int *lumbuf;
+	uint *starttab, *lengthtab;
+	uchar *rlebuf;
+	uint *lumbuf;
 	int rlebuflen, goodwrite;
 
 	goodwrite = 1;
@@ -696,14 +778,14 @@ static int output_iris(unsigned int *lptr, int xsize, int ysize, int zsize, cons
 	tablen = ysize * zsize * sizeof(int);
 
 	image = (IMAGE *)MEM_mallocN(sizeof(IMAGE), "iris image");
-	starttab = (unsigned int *)MEM_mallocN(tablen, "iris starttab");
-	lengthtab = (unsigned int *)MEM_mallocN(tablen, "iris lengthtab");
+	starttab = (uint *)MEM_mallocN(tablen, "iris starttab");
+	lengthtab = (uint *)MEM_mallocN(tablen, "iris lengthtab");
 	rlebuflen = 1.05 * xsize + 10;
-	rlebuf = (unsigned char *)MEM_mallocN(rlebuflen, "iris rlebuf");
-	lumbuf = (unsigned int *)MEM_mallocN(xsize * sizeof(int), "iris lumbuf");
+	rlebuf = (uchar *)MEM_mallocN(rlebuflen, "iris rlebuf");
+	lumbuf = (uint *)MEM_mallocN(xsize * sizeof(int), "iris lumbuf");
 
 	memset(image, 0, sizeof(IMAGE));
-	image->imagic = IMB_FTYPE_IMAGIC;
+	image->imagic = IMAGIC;
 	image->type = RLE(1);
 	if (zsize > 1)
 		image->dim = 3;
@@ -765,7 +847,7 @@ static int output_iris(unsigned int *lptr, int xsize, int ysize, int zsize, cons
 
 /* static utility functions for output_iris */
 
-static void lumrow(unsigned char *rgbptr, unsigned char *lumptr, int n)
+static void lumrow(uchar *rgbptr, uchar *lumptr, int n)
 {
 	lumptr += CHANOFFSET(0);
 	while (n--) {
@@ -775,9 +857,9 @@ static void lumrow(unsigned char *rgbptr, unsigned char *lumptr, int n)
 	}
 }
 
-static int compressrow(unsigned char *lbuf, unsigned char *rlebuf, int z, int cnt)
+static int compressrow(uchar *lbuf, uchar *rlebuf, int z, int cnt)
 {
-	unsigned char *iptr, *ibufend, *sptr, *optr;
+	uchar *iptr, *ibufend, *sptr, *optr;
 	short todo, cc;
 	int count;
 
@@ -830,7 +912,7 @@ static int compressrow(unsigned char *lbuf, unsigned char *rlebuf, int z, int cn
 		}
 	}
 	*optr++ = 0;
-	return optr - (unsigned char *)rlebuf;
+	return optr - (uchar *)rlebuf;
 }
 
 int imb_saveiris(struct ImBuf *ibuf, const char *name, int flags)
diff --git a/source/blender/imbuf/intern/jp2.c b/source/blender/imbuf/intern/jp2.c
index 390f2502ee7..388c2734fe9 100644
--- a/source/blender/imbuf/intern/jp2.c
+++ b/source/blender/imbuf/intern/jp2.c
@@ -588,7 +588,7 @@ static opj_image_t *ibuftoimage(ImBuf *ibuf, opj_cparameters_t *parameters)
 	img_fol_t img_fol; /* only needed for cinema presets */
 	memset(&img_fol, 0, sizeof(img_fol_t));
 	
-	if (ibuf->float_colorspace) {
+	if (ibuf->float_colorspace || (ibuf->colormanage_flag & IMB_COLORMANAGE_IS_DATA)) {
 		/* float buffer was managed already, no need in color space conversion */
 		chanel_colormanage_cb = channel_colormanage_noop;
 	}
diff --git a/source/blender/imbuf/intern/moviecache.c b/source/blender/imbuf/intern/moviecache.c
index 4b49076dcd6..89955711384 100644
--- a/source/blender/imbuf/intern/moviecache.c
+++ b/source/blender/imbuf/intern/moviecache.c
@@ -49,7 +49,7 @@
 #include "IMB_imbuf.h"
 
 #ifdef DEBUG_MESSAGES
-#  if defined __GNUC__ || defined __sun
+#  if defined __GNUC__
 #    define PRINT(format, args ...) printf(format, ##args)
 #  else
 #    define PRINT(format, ...) printf(__VA_ARGS__)
diff --git a/source/blender/imbuf/intern/openexr/openexr_api.cpp b/source/blender/imbuf/intern/openexr/openexr_api.cpp
index ec544e65355..1fa3b943524 100644
--- a/source/blender/imbuf/intern/openexr/openexr_api.cpp
+++ b/source/blender/imbuf/intern/openexr/openexr_api.cpp
@@ -1104,7 +1104,7 @@ void IMB_exr_write_channels(void *handle)
 
 	if (data->channels.first) {
 		const size_t num_pixels = ((size_t)data->width) * data->height;
-		half *rect_half = NULL, *current_rect_half;
+		half *rect_half = NULL, *current_rect_half = NULL;
 
 		/* We allocate teporary storage for half pixels for all the channels at once. */
 		if (data->num_half_channels != 0) {
diff --git a/source/blender/imbuf/intern/png.c b/source/blender/imbuf/intern/png.c
index 503e63a3fb1..dded0f7aecf 100644
--- a/source/blender/imbuf/intern/png.c
+++ b/source/blender/imbuf/intern/png.c
@@ -152,7 +152,7 @@ int imb_savepng(struct ImBuf *ibuf, const char *name, int flags)
 	compression = (int)(((float)(ibuf->foptions.quality) / 11.1111f));
 	compression = compression < 0 ? 0 : (compression > 9 ? 9 : compression);
 
-	if (ibuf->float_colorspace) {
+	if (ibuf->float_colorspace || (ibuf->colormanage_flag & IMB_COLORMANAGE_IS_DATA)) {
 		/* float buffer was managed already, no need in color space conversion */
 		chanel_colormanage_cb = channel_colormanage_noop;
 	}
diff --git a/source/blender/imbuf/intern/rectop.c b/source/blender/imbuf/intern/rectop.c
index 3360fd7548e..c4325caac91 100644
--- a/source/blender/imbuf/intern/rectop.c
+++ b/source/blender/imbuf/intern/rectop.c
@@ -301,8 +301,8 @@ void IMB_rectblend(ImBuf *dbuf, ImBuf *obuf, ImBuf *sbuf, unsigned short *dmask,
                    int destx,  int desty, int origx, int origy, int srcx, int srcy, int width, int height,
                    IMB_BlendMode mode, bool accumulate)
 {
-	unsigned int *drect = NULL, *orect, *srect = NULL, *dr, *or, *sr;
-	float *drectf = NULL, *orectf, *srectf = NULL, *drf, *orf, *srf;
+	unsigned int *drect = NULL, *orect = NULL, *srect = NULL, *dr, *or, *sr;
+	float *drectf = NULL, *orectf = NULL, *srectf = NULL, *drf, *orf, *srf;
 	unsigned short *cmaskrect = curvemask, *cmr;
 	unsigned short *dmaskrect = dmask, *dmr;
 	unsigned short *texmaskrect = texmask, *tmr;
@@ -424,6 +424,7 @@ void IMB_rectblend(ImBuf *dbuf, ImBuf *obuf, ImBuf *sbuf, unsigned short *dmask,
 	else {
 		switch (mode) {
 			case IMB_BLEND_MIX:
+			case IMB_BLEND_INTERPOLATE:
 				func = blend_color_mix_byte;
 				func_float = blend_color_mix_float;
 				break;
@@ -563,9 +564,15 @@ void IMB_rectblend(ImBuf *dbuf, ImBuf *obuf, ImBuf *sbuf, unsigned short *dmask,
 									mask_src[0] = src[0];
 									mask_src[1] = src[1];
 									mask_src[2] = src[2];
-									mask_src[3] = divide_round_i(src[3] * mask, 65535);
 
-									func((unsigned char *)dr, (unsigned char *)or, mask_src);
+									if (mode == IMB_BLEND_INTERPOLATE) {
+										mask_src[3] = src[3];
+										blend_color_interpolate_byte((unsigned char *)dr, (unsigned char *)or, mask_src, mask / 65535.0f);
+									}
+									else {
+										mask_src[3] = divide_round_i(src[3] * mask, 65535);
+										func((unsigned char *)dr, (unsigned char *)or, mask_src);
+									}
 								}
 							}
 						}
@@ -588,9 +595,15 @@ void IMB_rectblend(ImBuf *dbuf, ImBuf *obuf, ImBuf *sbuf, unsigned short *dmask,
 								mask_src[0] = src[0];
 								mask_src[1] = src[1];
 								mask_src[2] = src[2];
-								mask_src[3] = divide_round_i(src[3] * mask, 65535);
 
-								func((unsigned char *)dr, (unsigned char *)or, mask_src);
+								if (mode == IMB_BLEND_INTERPOLATE) {
+									mask_src[3] = src[3];
+									blend_color_interpolate_byte((unsigned char *)dr, (unsigned char *)or, mask_src, mask / 65535.0f);
+								}
+								else {
+									mask_src[3] = divide_round_i(src[3] * mask, 65535);
+									func((unsigned char *)dr, (unsigned char *)or, mask_src);
+								}
 							}
 						}
 					}
@@ -642,12 +655,16 @@ void IMB_rectblend(ImBuf *dbuf, ImBuf *obuf, ImBuf *sbuf, unsigned short *dmask,
 								mask = min_ff(mask, 65535.0);
 
 								if (mask > *dmr) {
-									float mask_srf[4];
-
 									*dmr = mask;
-									mul_v4_v4fl(mask_srf, srf, mask / 65535.0f);
 
-									func_float(drf, orf, mask_srf);
+									if (mode == IMB_BLEND_INTERPOLATE) {
+										blend_color_interpolate_float(drf, orf, srf, mask / 65535.0f);
+									}
+									else {
+										float mask_srf[4];
+										mul_v4_v4fl(mask_srf, srf, mask / 65535.0f);
+										func_float(drf, orf, mask_srf);
+									}
 								}
 							}
 						}
@@ -664,11 +681,15 @@ void IMB_rectblend(ImBuf *dbuf, ImBuf *obuf, ImBuf *sbuf, unsigned short *dmask,
 							mask = min_ff(mask, 65535.0);
 
 							if (srf[3] && (mask > 0.0f)) {
-								float mask_srf[4];
-
-								mul_v4_v4fl(mask_srf, srf, mask / 65535.0f);
+								if (mode == IMB_BLEND_INTERPOLATE) {
+									blend_color_interpolate_float(drf, orf, srf, mask / 65535.0f);
+								}
+								else {
+									float mask_srf[4];
+									mul_v4_v4fl(mask_srf, srf, mask / 65535.0f);
+									func_float(drf, orf, mask_srf);
+								}
 
-								func_float(drf, orf, mask_srf);
 							}
 						}
 					}
diff --git a/source/blender/imbuf/intern/tiff.c b/source/blender/imbuf/intern/tiff.c
index 4368a428186..8e5cf80e013 100644
--- a/source/blender/imbuf/intern/tiff.c
+++ b/source/blender/imbuf/intern/tiff.c
@@ -822,7 +822,7 @@ int imb_savetiff(ImBuf *ibuf, const char *name, int flags)
 				/* convert from float source */
 				float rgb[4];
 				
-				if (ibuf->float_colorspace) {
+				if (ibuf->float_colorspace || (ibuf->colormanage_flag & IMB_COLORMANAGE_IS_DATA)) {
 					/* float buffer was managed already, no need in color space conversion */
 					copy_v3_v3(rgb, &fromf[from_i]);
 				}
diff --git a/source/blender/imbuf/intern/util.c b/source/blender/imbuf/intern/util.c
index ba8480b636f..76a44aa81f7 100644
--- a/source/blender/imbuf/intern/util.c
+++ b/source/blender/imbuf/intern/util.c
@@ -52,10 +52,6 @@
 
 #include "IMB_anim.h"
 
-#ifdef WITH_QUICKTIME
-#include "quicktime_import.h"
-#endif
-
 #ifdef WITH_FFMPEG
 #include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
@@ -107,28 +103,6 @@ const char *imb_ext_image_filepath_only[] = {
 	NULL
 };
 
-const char *imb_ext_image_qt[] = {
-	".gif",
-	".psd",
-	".pct", ".pict",
-	".pntg",
-	".qtif",
-	NULL
-};
-
-#if 0  /* UNUSED */
-const char *imb_ext_movie_qt[] = {
-	".avi",   
-	".flc",   
-	".dv",    
-	".r3d",   
-	".mov",   
-	".movie", 
-	".mv",
-	NULL
-};
-#endif
-
 const char *imb_ext_movie[] = {
 	".avi",
 	".flc",
@@ -247,13 +221,6 @@ static int isavi(const char *name)
 #endif
 }
 
-#ifdef WITH_QUICKTIME
-static int isqtime(const char *name)
-{
-	return anim_is_quicktime(name);
-}
-#endif
-
 #ifdef WITH_FFMPEG
 
 /* BLI_vsnprintf in ffmpeg_log_callback() causes invalid warning */
@@ -383,9 +350,6 @@ int imb_get_anim_type(const char *name)
 	if (UTIL_DEBUG) printf("%s: %s\n", __func__, name);
 
 #ifndef _WIN32
-#   ifdef WITH_QUICKTIME
-	if (isqtime(name)) return (ANIM_QTIME);
-#   endif
 #   ifdef WITH_FFMPEG
 	/* stat test below fails on large files > 4GB */
 	if (isffmpeg(name)) return (ANIM_FFMPEG);
@@ -401,9 +365,6 @@ int imb_get_anim_type(const char *name)
 	if (((st.st_mode) & S_IFMT) != S_IFREG) return(0);
 
 	if (ismovie(name)) return (ANIM_MOVIE);
-#   ifdef WITH_QUICKTIME
-	if (isqtime(name)) return (ANIM_QTIME);
-#   endif
 #   ifdef WITH_FFMPEG
 	if (isffmpeg(name)) return (ANIM_FFMPEG);
 #   endif
diff --git a/source/blender/makesdna/DNA_ID.h b/source/blender/makesdna/DNA_ID.h
index da0f505c4f3..b2a3cb4f9bc 100644
--- a/source/blender/makesdna/DNA_ID.h
+++ b/source/blender/makesdna/DNA_ID.h
@@ -127,8 +127,7 @@ typedef struct ID {
 	/**
 	 * LIB_TAG_... tags (runtime only, cleared at read time).
 	 */
-	short tag;
-	short pad_s1;
+	int tag;
 	int us;
 	int icon_id;
 	IDProperty *properties;
@@ -288,7 +287,7 @@ typedef enum ID_Type {
 #ifdef GS
 #  undef GS
 #endif
-#define GS(a)	(CHECK_TYPE_ANY(a, char *, const char *, char [66], const char[66]), (*((const short *)(a))))
+#define GS(a)	(CHECK_TYPE_ANY(a, char *, const char *, char [66], const char[66]), (ID_Type)(*((const short *)(a))))
 
 #define ID_NEW_SET(_id, _idn) \
 	(((ID *)(_id))->newid = (ID *)(_idn), ((ID *)(_id))->newid->tag |= LIB_TAG_NEW, (void *)((ID *)(_id))->newid)
@@ -350,6 +349,13 @@ enum {
 	LIB_TAG_ID_RECALC_DATA  = 1 << 13,
 	LIB_TAG_ANIM_NO_RECALC  = 1 << 14,
 	LIB_TAG_ID_RECALC_ALL   = (LIB_TAG_ID_RECALC | LIB_TAG_ID_RECALC_DATA),
+
+	/* RESET_NEVER tag datablock for freeing etc. behavior (usually set when copying real one into temp/runtime one). */
+	LIB_TAG_NO_MAIN          = 1 << 16,  /* Datablock is not listed in Main database. */
+	LIB_TAG_NO_USER_REFCOUNT = 1 << 17,  /* Datablock does not refcount usages of other IDs. */
+	/* Datablock was not allocated by standard system (BKE_libblock_alloc), do not free its memory
+	 * (usual type-specific freeing is called though). */
+	LIB_TAG_NOT_ALLOCATED     = 1 << 18,
 };
 
 /* To filter ID types (filter_id) */
diff --git a/source/blender/makesdna/DNA_action_types.h b/source/blender/makesdna/DNA_action_types.h
index 1083400ece2..d49960771d0 100644
--- a/source/blender/makesdna/DNA_action_types.h
+++ b/source/blender/makesdna/DNA_action_types.h
@@ -514,7 +514,7 @@ typedef enum eActionGroup_Flag {
 	AGRP_MODIFIERS_OFF = (1 << 7),
 	
 	AGRP_TEMP       = (1 << 30),
-	AGRP_MOVED      = (1 << 31)
+	AGRP_MOVED      = (1u << 31)
 } eActionGroup_Flag;
 
 
@@ -757,7 +757,7 @@ typedef enum ACHAN_FLAG {
 	ACHAN_EXPANDED  = (1 << 4),
 	ACHAN_SHOWIPO   = (1 << 5),
 	ACHAN_SHOWCONS  = (1 << 6),
-	ACHAN_MOVED     = (1 << 31)
+	ACHAN_MOVED     = (1u << 31)
 } ACHAN_FLAG; 
 
 #endif  /* __DNA_ACTION_TYPES_H__ */
diff --git a/source/blender/makesdna/DNA_anim_types.h b/source/blender/makesdna/DNA_anim_types.h
index e50a2637fff..935a893f689 100644
--- a/source/blender/makesdna/DNA_anim_types.h
+++ b/source/blender/makesdna/DNA_anim_types.h
@@ -685,7 +685,7 @@ typedef enum eNlaStrip_Flag {
 	/* temporary editing flags */
 		/* NLA-Strip is really just a temporary meta used to facilitate easier transform code */
 	NLASTRIP_FLAG_TEMP_META     = (1<<30),
-	NLASTRIP_FLAG_EDIT_TOUCHED  = (1<<31)
+	NLASTRIP_FLAG_EDIT_TOUCHED  = (1u << 31)
 } eNlaStrip_Flag;
 
 /* NLA Strip Type */
diff --git a/source/blender/makesdna/DNA_brush_types.h b/source/blender/makesdna/DNA_brush_types.h
index f4a1677efc4..67a35d4e207 100644
--- a/source/blender/makesdna/DNA_brush_types.h
+++ b/source/blender/makesdna/DNA_brush_types.h
@@ -210,7 +210,7 @@ typedef enum BrushFlags {
 	BRUSH_CUSTOM_ICON = (1 << 28),
 	BRUSH_LINE = (1 << 29),
 	BRUSH_ABSOLUTE_JITTER = (1 << 30),
-	BRUSH_CURVE = (1 << 31)
+	BRUSH_CURVE = (1u << 31)
 } BrushFlags;
 
 typedef enum {
@@ -315,7 +315,21 @@ enum {
 	PAINT_BLEND_MUL = 3,
 	PAINT_BLEND_BLUR = 4,
 	PAINT_BLEND_LIGHTEN = 5,
-	PAINT_BLEND_DARKEN = 6
+	PAINT_BLEND_DARKEN = 6,
+	PAINT_BLEND_AVERAGE = 7,
+	PAINT_BLEND_SMEAR = 8,
+	PAINT_BLEND_COLORDODGE = 9,
+	PAINT_BLEND_DIFFERENCE = 10,
+	PAINT_BLEND_SCREEN = 11,
+	PAINT_BLEND_HARDLIGHT = 12,
+	PAINT_BLEND_OVERLAY = 13,
+	PAINT_BLEND_SOFTLIGHT = 14,
+	PAINT_BLEND_EXCLUSION = 15,
+	PAINT_BLEND_LUMINOCITY = 16,
+	PAINT_BLEND_SATURATION = 17,
+	PAINT_BLEND_HUE = 18,
+	PAINT_BLEND_ALPHA_SUB = 19,
+	PAINT_BLEND_ALPHA_ADD = 20,
 };
 
 typedef enum {
diff --git a/source/blender/makesdna/DNA_modifier_types.h b/source/blender/makesdna/DNA_modifier_types.h
index 823a7f0812f..64856b2eb76 100644
--- a/source/blender/makesdna/DNA_modifier_types.h
+++ b/source/blender/makesdna/DNA_modifier_types.h
@@ -98,7 +98,7 @@ typedef enum ModifierMode {
 	eModifierMode_Expanded          = (1 << 4),
 	eModifierMode_Virtual           = (1 << 5),
 	eModifierMode_ApplyOnSpline     = (1 << 6),
-	eModifierMode_DisableTemporary  = (1 << 31)
+	eModifierMode_DisableTemporary  = (1u << 31)
 } ModifierMode;
 
 typedef struct ModifierData {
@@ -278,6 +278,7 @@ typedef struct MirrorModifierData {
 	short flag;
 	float tolerance;
 	float uv_offset[2];
+	float uv_offset_copy[2];
 	struct Object *mirror_ob;
 } MirrorModifierData;
 
@@ -654,7 +655,8 @@ typedef struct BooleanModifierData {
 	struct Object *object;
 	char operation;
 	char solver;
-	char pad[2];
+	char pad;
+	char bm_flag;
 	float double_threshold;
 } BooleanModifierData;
 
@@ -669,6 +671,13 @@ typedef enum {
 	eBooleanModifierSolver_BMesh = 1,
 } BooleanSolver;
 
+/* bm_flag (only used when G_DEBUG) */
+enum {
+	eBooleanModifierBMeshFlag_BMesh_Separate            = (1 << 0),
+	eBooleanModifierBMeshFlag_BMesh_NoDissolve          = (1 << 1),
+	eBooleanModifierBMeshFlag_BMesh_NoConnectRegions    = (1 << 2),
+};
+
 typedef struct MDefInfluence {
 	int vertex;
 	float weight;
@@ -924,9 +933,10 @@ typedef struct ScrewModifierData {
 	unsigned int iter;
 	float screw_ofs;
 	float angle;
-	char axis;
-	char pad;
+	float merge_dist;
 	short flag;
+	char axis;
+	char pad[5];
 } ScrewModifierData;
 
 enum {
@@ -937,6 +947,7 @@ enum {
 	MOD_SCREW_SMOOTH_SHADING = (1 << 5),
 	MOD_SCREW_UV_STRETCH_U   = (1 << 6),
 	MOD_SCREW_UV_STRETCH_V   = (1 << 7),
+	MOD_SCREW_MERGE          = (1 << 8),
 };
 
 typedef struct OceanModifierData {
@@ -1515,7 +1526,7 @@ enum {
 	MOD_DATATRANSFER_USE_VERT         = 1 << 28,
 	MOD_DATATRANSFER_USE_EDGE         = 1 << 29,
 	MOD_DATATRANSFER_USE_LOOP         = 1 << 30,
-	MOD_DATATRANSFER_USE_POLY         = 1 << 31,
+	MOD_DATATRANSFER_USE_POLY         = 1u << 31,
 };
 
 /* Set Split Normals modifier */
diff --git a/source/blender/makesdna/DNA_node_types.h b/source/blender/makesdna/DNA_node_types.h
index b922ac072b0..e6bc315b728 100644
--- a/source/blender/makesdna/DNA_node_types.h
+++ b/source/blender/makesdna/DNA_node_types.h
@@ -111,7 +111,7 @@ typedef struct bNodeSocket {
 	short stack_index;			/* local stack index */
 	/* XXX deprecated, kept for forward compatibility */
 	short stack_type  DNA_DEPRECATED;
-	int pad;
+	char draw_shape, pad[3];
 	
 	void *cache;				/* cached data from execution */
 	
@@ -143,6 +143,13 @@ typedef enum eNodeSocketDatatype {
 	SOCK_STRING			= 7
 } eNodeSocketDatatype;
 
+/* socket shape */
+typedef enum eNodeSocketDrawShape {
+	SOCK_DRAW_SHAPE_CIRCLE = 0,
+	SOCK_DRAW_SHAPE_SQUARE = 1,
+	SOCK_DRAW_SHAPE_DIAMOND = 2
+} eNodeSocketDrawShape;
+
 /* socket side (input/output) */
 typedef enum eNodeSocketInOut {
 	SOCK_IN = 1,
diff --git a/source/blender/makesdna/DNA_object_types.h b/source/blender/makesdna/DNA_object_types.h
index 6d79e6d49f8..0f341aa4001 100644
--- a/source/blender/makesdna/DNA_object_types.h
+++ b/source/blender/makesdna/DNA_object_types.h
@@ -683,6 +683,9 @@ typedef enum ObjectMode {
 /* any mode where the brush system is used */
 #define OB_MODE_ALL_PAINT (OB_MODE_SCULPT | OB_MODE_VERTEX_PAINT | OB_MODE_WEIGHT_PAINT | OB_MODE_TEXTURE_PAINT)
 
+/* any mode that uses ob->sculpt */
+#define OB_MODE_ALL_SCULPT (OB_MODE_SCULPT | OB_MODE_VERTEX_PAINT | OB_MODE_WEIGHT_PAINT)
+
 #define MAX_DUPLI_RECUR 8
 
 #ifdef __cplusplus
diff --git a/source/blender/makesdna/DNA_scene_types.h b/source/blender/makesdna/DNA_scene_types.h
index 92c789f2feb..76cac158b5f 100644
--- a/source/blender/makesdna/DNA_scene_types.h
+++ b/source/blender/makesdna/DNA_scene_types.h
@@ -99,42 +99,6 @@ typedef struct AviCodecData {
 	char			avicodecname[128];
 } AviCodecData;
 
-typedef struct QuicktimeCodecData {
-	/*Old quicktime implementation compatibility fields, read only in 2.5 - deprecated*/
-	void			*cdParms;   /* codec/compressor options */
-	void			*pad;	    /* padding */
-
-	unsigned int	cdSize;		    /* size of cdParms buffer */
-	unsigned int	pad2;		    /* padding */
-
-	char			qtcodecname[128];
-} QuicktimeCodecData;
-	
-typedef struct QuicktimeCodecSettings {
-	/* Codec settings detailed for 2.5 implementation*/
-	int codecType; /* Types defined in quicktime_export.h */
-	int	codecSpatialQuality; /* in 0-100 scale, to be translated in 0-1024 for qt use */
-
-	/* Settings not available in current QTKit API */
-	int	codec;
-	int	codecFlags;
-	int	colorDepth;
-	int	codecTemporalQuality; /* in 0-100 scale, to be translated in 0-1024 for qt use */
-	int	minSpatialQuality; /* in 0-100 scale, to be translated in 0-1024 for qt use */
-	int	minTemporalQuality; /* in 0-100 scale, to be translated in 0-1024 for qt use */
-	int	keyFrameRate;
-	int	bitRate;	/* bitrate in bps */
-	
-	/* Audio Codec settings */
-	int audiocodecType;
-	int audioSampleRate;
-	short audioBitDepth;
-	short audioChannels;
-	int audioCodecFlags;
-	int audioBitRate;
-	int pad1;
-} QuicktimeCodecSettings;
-
 typedef enum FFMpegPreset {
 	FFM_PRESET_NONE,
 	FFM_PRESET_ULTRAFAST,
@@ -456,7 +420,7 @@ typedef struct ImageFormatData {
 #define R_IMF_IMTYPE_AVIJPEG        16
 #define R_IMF_IMTYPE_PNG            17
 /* #define R_IMF_IMTYPE_AVICODEC    18 */ /* avicodec is nomore */
-#define R_IMF_IMTYPE_QUICKTIME      19
+/* #define R_IMF_IMTYPE_QUICKTIME   19 */ /* quicktime is nomore */
 #define R_IMF_IMTYPE_BMP            20
 #define R_IMF_IMTYPE_RADHDR         21
 #define R_IMF_IMTYPE_TIFF           22
@@ -585,8 +549,6 @@ typedef struct RenderData {
 	struct ImageFormatData im_format;
 	
 	struct AviCodecData *avicodecdata;
-	struct QuicktimeCodecData *qtcodecdata;
-	struct QuicktimeCodecSettings qtcodecsettings;
 	struct FFMpegCodecData ffcodecdata;
 
 	int cfra, sfra, efra;	/* frames as in 'images' */
@@ -751,7 +713,7 @@ typedef struct RenderData {
 
 	/* sequencer options */
 	char seq_prev_type;
-	char seq_rend_type;
+	char seq_rend_type;  /* UNUSED! */
 	char seq_flag; /* flag use for sequence render/draw */
 	char pad5[5];
 
@@ -790,14 +752,13 @@ typedef struct RenderData {
 	struct BakeData bake;
 
 	int preview_start_resolution;
+	short preview_pixel_size;
 
 	/* Type of the debug pass to use.
 	 * Only used when built with debug passes support.
 	 */
 	short debug_pass_type;
 
-	short pad;
-
 	/* MultiView */
 	ListBase views;  /* SceneRenderView */
 	short actview;
@@ -1156,13 +1117,8 @@ typedef struct UvSculpt {
 /* Vertex Paint */
 typedef struct VPaint {
 	Paint paint;
-
 	short flag, pad;
-	int tot;							/* allocation size of prev buffers */
-	unsigned int *vpaint_prev;			/* previous mesh colors */
-	struct MDeformVert *wpaint_prev;	/* previous vertex weights */
-	
-	void *paintcursor;					/* wm handle */
+	int radial_symm[3]; /* For mirrored painting */
 } VPaint;
 
 /* VPaint.flag */
@@ -1668,8 +1624,7 @@ typedef struct Scene {
 	struct Object *obedit;		/* name replaces old G.obedit */
 	
 	float cursor[3];			/* 3d cursor location */
-	float twcent[3];			/* center for transform widget */
-	float twmin[3], twmax[3];	/* boundbox of selection for transform widget */
+	char _pad[4];
 	
 	unsigned int lay;			/* bitflags for layer visibility */
 	int layact;		/* active layer */
@@ -1730,6 +1685,8 @@ typedef struct Scene {
 	/* Movie Tracking */
 	struct MovieClip *clip;			/* active movie clip */
 
+	void *pad4;
+
 	uint64_t customdata_mask;	/* XXX. runtime flag for drawing, actually belongs in the window, only used by BKE_object_handle_update() */
 	uint64_t customdata_mask_modal; /* XXX. same as above but for temp operator use (gl renders) */
 
@@ -1750,8 +1707,7 @@ typedef struct Scene {
 	/* use preview range */
 #define SCER_PRV_RANGE	(1<<0)
 #define SCER_LOCK_FRAME_SELECTION	(1<<1)
-	/* timeline/keyframe jumping - only selected items (on by default) */
-#define SCE_KEYS_NO_SELONLY	(1<<2)
+	/* show/use subframes (for checking motion blur) */
 #define SCER_SHOW_SUBFRAME	(1<<3)
 
 /* mode (int now) */
@@ -1791,7 +1747,7 @@ typedef struct Scene {
 #define R_USE_WS_SHADING	0x8000000 /* use world space interpretation of lighting data */
 
 /* seq_flag */
-#define R_SEQ_GL_PREV 1
+// #define R_SEQ_GL_PREV 1  // UNUSED, we just use setting from seq_prev_type now.
 // #define R_SEQ_GL_REND 2  // UNUSED, opengl render has its own operator now.
 #define R_SEQ_SOLID_TEX 4
 
@@ -1936,16 +1892,18 @@ extern const char *RE_engine_id_CYCLES;
 /* **************** SCENE ********************* */
 
 /* note that much higher maxframes give imprecise sub-frames, see: T46859 */
+/* Current precision is 16 for the sub-frames closer to MAXFRAME. */
+
 /* for general use */
-#define MAXFRAME	500000
-#define MAXFRAMEF	500000.0f
+#define MAXFRAME	1048574
+#define MAXFRAMEF	1048574.0f
 
 #define MINFRAME	0
 #define MINFRAMEF	0.0f
 
 /* (minimum frame number for current-frame) */
-#define MINAFRAME	-500000
-#define MINAFRAMEF	-500000.0f
+#define MINAFRAME	-1048574
+#define MINAFRAMEF	-1048574.0f
 
 /* depricate this! */
 #define TESTBASE(v3d, base)  (                                                \
@@ -2085,6 +2043,7 @@ typedef enum eVGroupSelect {
 #define SCE_DS_COLLAPSED		(1<<1)
 #define SCE_NLA_EDIT_ON			(1<<2)
 #define SCE_FRAME_DROP			(1<<3)
+#define SCE_KEYS_NO_SELONLY	    (1<<4)
 
 
 	/* return flag BKE_scene_base_iter_next functions */
diff --git a/source/blender/makesdna/DNA_screen_types.h b/source/blender/makesdna/DNA_screen_types.h
index e208ef39719..fd63d7c471c 100644
--- a/source/blender/makesdna/DNA_screen_types.h
+++ b/source/blender/makesdna/DNA_screen_types.h
@@ -366,7 +366,7 @@ enum {
 /* uiList filter orderby type */
 enum {
 	UILST_FLT_SORT_ALPHA        = 1 << 0,
-	UILST_FLT_SORT_REVERSE      = 1 << 31  /* Special value, bitflag used to reverse order! */
+	UILST_FLT_SORT_REVERSE      = 1u << 31  /* Special value, bitflag used to reverse order! */
 };
 
 #define UILST_FLT_SORT_MASK (((unsigned int)UILST_FLT_SORT_REVERSE) - 1)
diff --git a/source/blender/makesdna/DNA_sequence_types.h b/source/blender/makesdna/DNA_sequence_types.h
index 1f4e4df4660..74a1a13c2eb 100644
--- a/source/blender/makesdna/DNA_sequence_types.h
+++ b/source/blender/makesdna/DNA_sequence_types.h
@@ -442,7 +442,7 @@ enum {
 	/* access scene strips directly (like a metastrip) */
 	SEQ_SCENE_STRIPS            = (1 << 30),
 
-	SEQ_INVALID_EFFECT          = (1 << 31),
+	SEQ_INVALID_EFFECT          = (1u << 31),
 };
 
 /* StripProxy->storage */
diff --git a/source/blender/makesdna/DNA_space_types.h b/source/blender/makesdna/DNA_space_types.h
index 0e5d9bd33e6..d6490d99016 100644
--- a/source/blender/makesdna/DNA_space_types.h
+++ b/source/blender/makesdna/DNA_space_types.h
@@ -741,7 +741,7 @@ typedef enum eFileSel_File_Types {
 	FILE_TYPE_ALEMBIC           = (1 << 16),
 
 	FILE_TYPE_DIR               = (1 << 30),  /* An FS directory (i.e. S_ISDIR on its path is true). */
-	FILE_TYPE_BLENDERLIB        = (1 << 31),
+	FILE_TYPE_BLENDERLIB        = (1u << 31),
 } eFileSel_File_Types;
 
 /* Selection Flags in filesel: struct direntry, unsigned char selflag */
diff --git a/source/blender/makesdna/DNA_userdef_types.h b/source/blender/makesdna/DNA_userdef_types.h
index 5e7e7366e35..cddb1e06b8c 100644
--- a/source/blender/makesdna/DNA_userdef_types.h
+++ b/source/blender/makesdna/DNA_userdef_types.h
@@ -48,7 +48,8 @@ struct ColorBand;
 
 #define MAX_STYLE_NAME	64
 
-/* default uifont_id offered by Blender */
+/* default offered by Blender.
+ * uiFont.uifont_id */
 typedef enum eUIFont_ID {
 	UIFONT_DEFAULT	= 0,
 /*	UIFONT_BITMAP	= 1 */ /* UNUSED */
@@ -64,7 +65,7 @@ typedef struct uiFont {
 	struct uiFont *next, *prev;
 	char filename[1024];/* 1024 = FILE_MAX */
 	short blf_id;		/* from blfont lib */
-	short uifont_id;	/* own id */
+	short uifont_id;	/* own id (eUIFont_ID) */
 	short r_to_l;		/* fonts that read from left to right */
 	short hinting;
 } uiFont;
@@ -84,7 +85,7 @@ typedef struct uiFontStyle {
 	float shadowcolor;		/* 1 value, typically white or black anyway */
 } uiFontStyle;
 
-/* uiFontStyle->align */
+/* uiFontStyle.align */
 typedef enum eFontStyle_Align {
 	UI_STYLE_TEXT_LEFT		= 0,
 	UI_STYLE_TEXT_CENTER	= 1,
@@ -354,11 +355,11 @@ typedef struct ThemeWireColor {
 	char	select[4];
 	char 	active[4];
 	
-	short 	flag;
+	short 	flag;  /* eWireColor_Flags */
 	short 	pad;
 } ThemeWireColor; 
 
-/* flags for ThemeWireColor */
+/* ThemeWireColor.flag */
 typedef enum eWireColor_Flags {
 	TH_WIRECOLOR_CONSTCOLS	= (1 << 0),
 	TH_WIRECOLOR_TEXTCOLS	= (1 << 1),
@@ -434,7 +435,8 @@ typedef struct UserDef {
 	/* UserDef has separate do-version handling, and can be read from other files */
 	int versionfile, subversionfile;
 	
-	int flag, dupflag;
+	int flag;  /* eUserPref_Flag */
+	int dupflag;  /* eDupli_ID_Flags */
 	int savetime;
 	char tempdir[768];	/* FILE_MAXDIR length */
 	char fontdir[768];
@@ -450,14 +452,15 @@ typedef struct UserDef {
 	int anim_player_preset;
 	
 	short v2d_min_gridsize;		/* minimum spacing between gridlines in View2D grids */
-	short timecode_style;		/* style of timecode display */
+	short timecode_style;		/* eTimecodeStyles, style of timecode display */
 	
 	short versions;
 	short dbl_click_time;
 	
 	short gameflags;
 	short wheellinescroll;
-	int uiflag, uiflag2;
+	int uiflag;   /* eUserpref_UI_Flag */
+	int uiflag2;  /* eUserpref_UI_Flag2 */
 	int language;
 	short userpref, viewzoom;
 	
@@ -470,10 +473,10 @@ typedef struct UserDef {
 	int scrollback;     /* console scrollback limit */
 	int dpi;            /* range 48-128? */
 	float ui_scale;     /* interface scale */
-	int pad1;
+	int ui_line_width;  /* interface line width */
 	char node_margin;   /* node insert offset (aka auto-offset) margin, but might be useful for later stuff as well */
 	char pad2;
-	short transopts;
+	short transopts;    /* eUserpref_Translation_Flags */
 	short menuthreshold1, menuthreshold2;
 
 	/* startup template */
@@ -491,12 +494,12 @@ typedef struct UserDef {
 	short undosteps;
 	short undomemory;
 	short gp_manhattendist, gp_euclideandist, gp_eraser;
-	short gp_settings;
+	short gp_settings;  /* eGP_UserdefSettings */
 	short tb_leftmouse, tb_rightmouse;
 	struct SolidLight light[3];
 	short tw_hotspot, tw_flag, tw_handlesize, tw_size;
 	short textimeout, texcollectrate;
-	short wmdrawmethod; /* removed wmpad */
+	short wmdrawmethod; /* eWM_DrawMethod */
 	short dragthreshold;
 	int memcachelimit;
 	int prefetchframes;
@@ -509,13 +512,13 @@ typedef struct UserDef {
 	short smooth_viewtx;	/* miliseconds to spend spinning the view */
 	short glreslimit;
 	short curssize;
-	short color_picker_type;
+	short color_picker_type;  /* eColorPicker_Types */
 	char  ipo_new;			/* interpolation mode for newly added F-Curves */
 	char  keyhandles_new;	/* handle types for newly added keyframes */
 	char  gpu_select_method;
 	char  gpu_select_pick_deph;
 	char  pad4;
-	char  view_frame_type;
+	char  view_frame_type;  /* eZoomFrame_Mode */
 
 	int view_frame_keyframes; /* number of keyframes to zoom around current frame */
 	float view_frame_seconds; /* seconds to zoom around current frame */
@@ -530,15 +533,16 @@ typedef struct UserDef {
 	float ndof_sensitivity;	/* overall sensitivity of 3D mouse */
 	float ndof_orbit_sensitivity;
 	float ndof_deadzone; /* deadzone of 3D mouse */
-	int ndof_flag;			/* flags for 3D mouse */
+	int ndof_flag;			/* eNdof_Flag, flags for 3D mouse */
 
-	short ogl_multisamples;	/* amount of samples for OpenGL FSA, if zero no FSA */
+	short ogl_multisamples;	/* eMultiSample_Type, amount of samples for OpenGL FSA, if zero no FSA */
 
-	short image_draw_method; /* Method to be used to draw the images (AUTO, GLSL, Textures or DrawPixels) */
+	/* eImageDrawMethod, Method to be used to draw the images (AUTO, GLSL, Textures or DrawPixels) */
+	short image_draw_method;
 	
 	float glalphaclip;
 	
-	short autokey_mode;		/* autokeying mode */
+	short autokey_mode;		/* eAutokey_Mode, autokeying mode */
 	short autokey_flag;		/* flags for autokeying */
 	
 	short text_render, pad9;		/* options for text rendering */
@@ -582,7 +586,7 @@ extern UserDef U; /* from blenkernel blender.c */
 
 /* ***************** USERDEF ****************** */
 
-/* userpref/section */
+/* UserDef.userpref (UI active_section) */
 typedef enum eUserPref_Section {
 	USER_SECTION_INTERFACE	= 0,
 	USER_SECTION_EDIT		= 1,
@@ -593,19 +597,19 @@ typedef enum eUserPref_Section {
 	USER_SECTION_ADDONS 	= 6,
 } eUserPref_Section;
 
-/* flag */
+/* UserDef.flag */
 typedef enum eUserPref_Flag {
 	USER_AUTOSAVE			= (1 << 0),
-/*	USER_AUTOGRABGRID		= (1 << 1),	deprecated */
-/*	USER_AUTOROTGRID		= (1 << 2),	deprecated */
-/*	USER_AUTOSIZEGRID		= (1 << 3),	deprecated */
+	USER_FLAG_DEPRECATED_1	= (1 << 1),  /* cleared */
+	USER_FLAG_DEPRECATED_2	= (1 << 2),  /* cleared */
+	USER_FLAG_DEPRECATED_3	= (1 << 3),  /* cleared */
 	USER_SCENEGLOBAL		= (1 << 4),
 	USER_TRACKBALL			= (1 << 5),
-/*	USER_DUPLILINK		= (1 << 6),	deprecated */
-/*	USER_FSCOLLUM			= (1 << 7),	deprecated */
+	USER_FLAG_DEPRECATED_6	= (1 << 6),  /* cleared */
+	USER_FLAG_DEPRECATED_7	= (1 << 7),  /* cleared */
 	USER_MAT_ON_OB			= (1 << 8),
-/*	USER_NO_CAPSLOCK		= (1 << 9), */  /* not used anywhere */
-/*	USER_VIEWMOVE			= (1 << 10), */ /* not used anywhere */
+	USER_FLAG_DEPRECATED_9	= (1 << 9),   /* cleared */
+	USER_FLAG_DEPRECATED_10	= (1 << 10),  /* cleared */
 	USER_TOOLTIPS			= (1 << 11),
 	USER_TWOBUTTONMOUSE		= (1 << 12),
 	USER_NONUMPAD			= (1 << 13),
@@ -624,7 +628,7 @@ typedef enum eUserPref_Flag {
 	USER_TOOLTIPS_PYTHON    = (1 << 26),
 } eUserPref_Flag;
 
-/* flag */
+/* bPathCompare.flag */
 typedef enum ePathCompare_Flag {
 	USER_PATHCMP_GLOB		= (1 << 0),
 } ePathCompare_Flag;
@@ -635,33 +639,34 @@ typedef enum ePathCompare_Flag {
 		cfra = 0;                                                             \
 	} (void)0
 
-/* viewzoom */
+/* UserDef.viewzoom */
 typedef enum eViewZoom_Style {
 	USER_ZOOM_CONT			= 0,
 	USER_ZOOM_SCALE			= 1,
 	USER_ZOOM_DOLLY			= 2
 } eViewZoom_Style;
 
-/* navigation_mode */
+/* UserDef.navigation_mode */
 typedef enum eViewNavigation_Method {
 	VIEW_NAVIGATION_WALK = 0,
 	VIEW_NAVIGATION_FLY  = 1,
 } eViewNavigation_Method;
 
-/* flag */
+/* UserDef.flag */
 typedef enum eWalkNavigation_Flag {
 	USER_WALK_GRAVITY			= (1 << 0),
 	USER_WALK_MOUSE_REVERSE		= (1 << 1),
 } eWalkNavigation_Flag;
 
-/* uiflag */
+/* UserDef.uiflag */
 typedef enum eUserpref_UI_Flag {
 	/* flags 0 and 1 were old flags (for autokeying) that aren't used anymore */
 	USER_WHEELZOOMDIR		= (1 << 2),
 	USER_FILTERFILEEXTS		= (1 << 3),
 	USER_DRAWVIEWINFO		= (1 << 4),
 	USER_PLAINMENUS			= (1 << 5),
-	/* flags 6 and 7 were old flags that are no-longer used */
+	USER_LOCK_CURSOR_ADJUST	= (1 << 6),
+	USER_UIFLAG_DEPRECATED_7	= (1 << 7),  /* cleared */
 	USER_ALLWINCODECS		= (1 << 8),
 	USER_MENUOPENAUTO		= (1 << 9),
 	USER_ZBUF_CURSOR		= (1 << 10),
@@ -685,17 +690,18 @@ typedef enum eUserpref_UI_Flag {
 	USER_HIDE_RECENT		= (1 << 28),
 	USER_SHOW_THUMBNAILS	= (1 << 29),
 	USER_QUIT_PROMPT		= (1 << 30),
-	USER_HIDE_SYSTEM_BOOKMARKS = (1 << 31)
+	USER_HIDE_SYSTEM_BOOKMARKS = (1u << 31)
 } eUserpref_UI_Flag;
 
-/* uiflag2 */
+/* UserDef.uiflag2 */
 typedef enum eUserpref_UI_Flag2 {
 	USER_KEEP_SESSION			= (1 << 0),
 	USER_REGION_OVERLAP			= (1 << 1),
 	USER_TRACKPAD_NATURAL		= (1 << 2),
 } eUserpref_UI_Flag2;
 	
-/* Auto-Keying mode */
+/* Auto-Keying mode.
+ * UserDef.autokey_mode */
 typedef enum eAutokey_Mode {
 	/* AUTOKEY_ON is a bitflag */
 	AUTOKEY_ON             = 1,
@@ -705,7 +711,8 @@ typedef enum eAutokey_Mode {
 	AUTOKEY_MODE_EDITKEYS  = 5
 } eAutokey_Mode;
 
-/* Zoom to frame mode */
+/* Zoom to frame mode.
+ * UserDef.view_frame_type */
 typedef enum eZoomFrame_Mode {
 	ZOOM_FRAME_MODE_KEEP_RANGE = 0,
 	ZOOM_FRAME_MODE_SECONDS = 1,
@@ -728,20 +735,20 @@ typedef enum eAutokey_Flag {
 	ANIMRECORD_FLAG_WITHNLA		= (1 << 10),
 } eAutokey_Flag;
 
-/* transopts */
+/* UserDef.transopts */
 typedef enum eUserpref_Translation_Flags {
 	USER_TR_TOOLTIPS		= (1 << 0),
 	USER_TR_IFACE			= (1 << 1),
-/*	USER_TR_MENUS			= (1 << 2),  deprecated */
-/*	USER_TR_FILESELECT		= (1 << 3),  deprecated */
-/*	USER_TR_TEXTEDIT		= (1 << 4),  deprecated */
+	USER_TR_DEPRECATED_2	= (1 << 2),  /* cleared */
+	USER_TR_DEPRECATED_3	= (1 << 3),  /* cleared */
+	USER_TR_DEPRECATED_4	= (1 << 4),  /* cleared */
 	USER_DOTRANSLATE		= (1 << 5),
-	USER_USETEXTUREFONT		= (1 << 6),
-/*	CONVERT_TO_UTF8			= (1 << 7),  deprecated */
+	USER_TR_DEPRECATED_6	= (1 << 6),  /* cleared */
+	USER_TR_DEPRECATED_7	= (1 << 7),  /* cleared */
 	USER_TR_NEWDATANAME		= (1 << 8),
 } eUserpref_Translation_Flags;
 
-/* dupflag */
+/* UserDef.dupflag */
 typedef enum eDupli_ID_Flags {
 	USER_DUP_MESH			= (1 << 0),
 	USER_DUP_CURVE			= (1 << 1),
@@ -757,14 +764,13 @@ typedef enum eDupli_ID_Flags {
 	USER_DUP_PSYS			= (1 << 11)
 } eDupli_ID_Flags;
 
-/* gameflags */
+/* UserDef.gameflags */
 typedef enum eOpenGL_RenderingOptions {
-	/* USER_DEPRECATED_FLAG	= (1 << 0), */
-	/* USER_DISABLE_SOUND		= (1 << 1), */ /* deprecated, don't use without checking for */
-	                                     /* backwards compatibilty in do_versions! */
-	USER_DISABLE_MIPMAP		= (1 << 2),
-	/* USER_DISABLE_VBO		= (1 << 3), */ /* DEPRECATED we always use vertex buffers now */
-	/* USER_DISABLE_AA			= (1 << 4), */ /* DEPRECATED */
+	USER_GL_RENDER_DEPRECATED_0			= (1 << 0),
+	USER_GL_RENDER_DEPRECATED_1			= (1 << 1),
+	USER_DISABLE_MIPMAP					= (1 << 2),
+	USER_GL_RENDER_DEPRECATED_3			= (1 << 3),
+	USER_GL_RENDER_DEPRECATED_4			= (1 << 4),
 } eOpenGL_RenderingOptions;
 
 /* selection method for opengl gpu_select_method */
@@ -774,7 +780,8 @@ typedef enum eOpenGL_SelectOptions {
 	USER_SELECT_USE_SELECT_RENDERMODE = 2
 } eOpenGL_SelectOptions;
 
-/* wm draw method */
+/* wm draw method.
+ * UserDef.wmdrawmethod */
 typedef enum eWM_DrawMethod {
 	USER_DRAW_TRIPLE		= 0,
 	USER_DRAW_OVERLAP		= 1,
@@ -783,20 +790,23 @@ typedef enum eWM_DrawMethod {
 	USER_DRAW_OVERLAP_FLIP	= 4,
 } eWM_DrawMethod;
 
-/* text draw options */
+/* text draw options
+ * UserDef.text_render */
 typedef enum eText_Draw_Options {
 	USER_TEXT_DISABLE_AA	= (1 << 0),
 } eText_Draw_Options;
 
 /* tw_flag (transform widget) */
 
-/* gp_settings (Grease Pencil Settings) */
+/* Grease Pencil Settings.
+ * UserDef.gp_settings */
 typedef enum eGP_UserdefSettings {
 	GP_PAINT_DOSMOOTH		= (1 << 0),
 	GP_PAINT_DOSIMPLIFY		= (1 << 1),
 } eGP_UserdefSettings;
 
-/* color picker types */
+/* Color Picker Types.
+ * UserDef.color_picker_type */
 typedef enum eColorPicker_Types {
 	USER_CP_CIRCLE_HSV	= 0,
 	USER_CP_SQUARE_SV	= 1,
@@ -805,7 +815,8 @@ typedef enum eColorPicker_Types {
 	USER_CP_CIRCLE_HSL	= 4,
 } eColorPicker_Types;
 
-/* timecode display styles */
+/* timecode display styles
+  * UserDef.timecode_style */
 typedef enum eTimecodeStyles {
 	/* as little info as is necessary to show relevant info
 	 * with '+' to denote the frames 
@@ -840,7 +851,7 @@ typedef enum eTheme_DrawTypes {
 	TH_SHADED   	= 4
 } eTheme_DrawTypes;
 
-/* ndof_flag (3D mouse options) */
+/* UserDef.ndof_flag (3D mouse options) */
 typedef enum eNdof_Flag {
 	NDOF_SHOW_GUIDE     = (1 << 0),
 	NDOF_FLY_HELICOPTER = (1 << 1),
@@ -873,6 +884,7 @@ typedef enum eNdof_Flag {
 
 #define NDOF_PIXELS_PER_SECOND 600.0f
 
+/* UserDef.ogl_multisamples */
 typedef enum eMultiSample_Type {
 	USER_MULTISAMPLE_NONE	= 0,
 	USER_MULTISAMPLE_2	= 2,
@@ -880,7 +892,8 @@ typedef enum eMultiSample_Type {
 	USER_MULTISAMPLE_8	= 8,
 	USER_MULTISAMPLE_16	= 16,
 } eMultiSample_Type;
-	
+
+/* UserDef.image_draw_method */
 typedef enum eImageDrawMethod {
 	/* IMAGE_DRAW_METHOD_AUTO = 0, */ /* Currently unused */
 	IMAGE_DRAW_METHOD_GLSL = 1,
@@ -888,6 +901,7 @@ typedef enum eImageDrawMethod {
 	IMAGE_DRAW_METHOD_DRAWPIXELS = 3,
 } eImageDrawMethod;
 
+/* UserDef.virtual_pixel */
 typedef enum eUserpref_VirtualPixel {
 	VIRTUAL_PIXEL_NATIVE = 0,
 	VIRTUAL_PIXEL_DOUBLE = 1,
diff --git a/source/blender/makesdna/DNA_view3d_types.h b/source/blender/makesdna/DNA_view3d_types.h
index 4c243507e82..b9894d46b5b 100644
--- a/source/blender/makesdna/DNA_view3d_types.h
+++ b/source/blender/makesdna/DNA_view3d_types.h
@@ -225,7 +225,8 @@ typedef struct View3D {
 	struct GPUFXSettings fx_settings;
 
 	void *properties_storage;		/* Nkey panel stores stuff here (runtime only!) */
-	struct Material *defmaterial;	/* used by matcap now */
+	/* Allocated per view, not library data (used by matcap). */
+	struct Material *defmaterial;
 
 	/* XXX deprecated? */
 	struct bGPdata *gpd  DNA_DEPRECATED;		/* Grease-Pencil Data (annotation layers) */
diff --git a/source/blender/makesrna/RNA_access.h b/source/blender/makesrna/RNA_access.h
index a1af3f98274..178d2d398e9 100644
--- a/source/blender/makesrna/RNA_access.h
+++ b/source/blender/makesrna/RNA_access.h
@@ -488,7 +488,6 @@ extern StructRNA RNA_PropertyGroupItem;
 extern StructRNA RNA_PropertySensor;
 extern StructRNA RNA_PythonConstraint;
 extern StructRNA RNA_PythonController;
-extern StructRNA RNA_QuickTimeSettings;
 extern StructRNA RNA_RadarSensor;
 extern StructRNA RNA_RandomSensor;
 extern StructRNA RNA_RaySensor;
@@ -783,6 +782,9 @@ const struct ListBase *RNA_struct_type_functions(StructRNA *srna);
 
 char *RNA_struct_name_get_alloc(PointerRNA *ptr, char *fixedbuf, int fixedlen, int *r_len);
 
+bool RNA_struct_available_or_report(struct ReportList *reports, const char *identifier);
+bool RNA_struct_bl_idname_ok_or_report(struct ReportList *reports, const char *identifier, const char *sep);
+
 /* Properties
  *
  * Access to struct properties. All this works with RNA pointers rather than
@@ -1197,7 +1199,7 @@ StructRNA *ID_code_to_RNA_type(short idcode);
 } (void)0
 
 /* macro which inserts the function name */
-#if defined __GNUC__ || defined __sun
+#if defined __GNUC__
 #  define RNA_warning(format, args ...) _RNA_warning("%s: " format "\n", __func__, ##args)
 #else
 #  define RNA_warning(format, ...) _RNA_warning("%s: " format "\n", __FUNCTION__, __VA_ARGS__)
diff --git a/source/blender/makesrna/RNA_define.h b/source/blender/makesrna/RNA_define.h
index 6e62313b00a..42ffe774720 100644
--- a/source/blender/makesrna/RNA_define.h
+++ b/source/blender/makesrna/RNA_define.h
@@ -62,7 +62,8 @@ void RNA_def_struct_refine_func(StructRNA *srna, const char *refine);
 void RNA_def_struct_idprops_func(StructRNA *srna, const char *refine);
 void RNA_def_struct_register_funcs(StructRNA *srna, const char *reg, const char *unreg, const char *instance);
 void RNA_def_struct_path_func(StructRNA *srna, const char *path);
-void RNA_def_struct_identifier(StructRNA *srna, const char *identifier);
+void RNA_def_struct_identifier_no_struct_map(StructRNA *srna, const char *identifier);
+void RNA_def_struct_identifier(BlenderRNA *brna, StructRNA *srna, const char *identifier);
 void RNA_def_struct_ui_text(StructRNA *srna, const char *name, const char *description);
 void RNA_def_struct_ui_icon(StructRNA *srna, int icon);
 void RNA_struct_free_extension(StructRNA *srna, ExtensionRNA *ext);
@@ -216,8 +217,8 @@ void RNA_enum_item_end(EnumPropertyItem **items, int *totitem);
 
 /* Memory management */
 
-void RNA_def_struct_duplicate_pointers(StructRNA *srna);
-void RNA_def_struct_free_pointers(StructRNA *srna);
+void RNA_def_struct_duplicate_pointers(BlenderRNA *brna, StructRNA *srna);
+void RNA_def_struct_free_pointers(BlenderRNA *brna, StructRNA *srna);
 void RNA_def_func_duplicate_pointers(FunctionRNA *func);
 void RNA_def_func_free_pointers(FunctionRNA *func);
 void RNA_def_property_duplicate_pointers(StructOrFunctionRNA *cont_, PropertyRNA *prop);
diff --git a/source/blender/makesrna/RNA_enum_types.h b/source/blender/makesrna/RNA_enum_types.h
index 1c9b3593d17..f8e240d57bf 100644
--- a/source/blender/makesrna/RNA_enum_types.h
+++ b/source/blender/makesrna/RNA_enum_types.h
@@ -114,6 +114,8 @@ extern EnumPropertyItem rna_enum_brush_image_tool_items[];
 
 extern EnumPropertyItem rna_enum_gpencil_sculpt_brush_items[];
 
+extern EnumPropertyItem rna_enum_uv_sculpt_tool_items[];
+
 extern EnumPropertyItem rna_enum_axis_xy_items[];
 extern EnumPropertyItem rna_enum_axis_xyz_items[];
 
diff --git a/source/blender/makesrna/RNA_types.h b/source/blender/makesrna/RNA_types.h
index cd04f9e8a6d..e119c49401e 100644
--- a/source/blender/makesrna/RNA_types.h
+++ b/source/blender/makesrna/RNA_types.h
@@ -178,7 +178,7 @@ typedef enum PropertyFlag {
 	 * after every typed char, instead of waiting final validation. Used e.g. for text searchbox.
 	 * It will also cause UI_BUT_VALUE_CLEAR to be set for text buttons. We could add an own flag
 	 * for search/filter properties, but this works just fine for now. */
-	PROP_TEXTEDIT_UPDATE         = (1 << 31),
+	PROP_TEXTEDIT_UPDATE         = (1u << 31),
 
 	/* icon */
 	PROP_ICONS_CONSECUTIVE       = (1 << 12),
@@ -436,6 +436,8 @@ typedef enum StructFlag {
 	STRUCT_NO_IDPROPERTIES = (1 << 6), /* Menus and Panels don't need properties */
 	STRUCT_NO_DATABLOCK_IDPROPERTIES = (1 << 7), /* e.g. for Operator */
 	STRUCT_CONTAINS_DATABLOCK_IDPROPERTIES = (1 << 8), /* for PropertyGroup which contains pointers to datablocks */
+	STRUCT_PUBLIC_NAMESPACE = (1 << 9), /* Added to type-map #BlenderRNA.structs_map */
+	STRUCT_PUBLIC_NAMESPACE_INHERIT = (1 << 10), /* All subtypes are added too. */
 } StructFlag;
 
 typedef int (*StructValidateFunc)(struct PointerRNA *ptr, void *data, int *have_function);
diff --git a/source/blender/makesrna/intern/CMakeLists.txt b/source/blender/makesrna/intern/CMakeLists.txt
index 6a08d762920..743d192f0c5 100644
--- a/source/blender/makesrna/intern/CMakeLists.txt
+++ b/source/blender/makesrna/intern/CMakeLists.txt
@@ -140,6 +140,9 @@ set(GENSRC_CFLAGS)
 if(CMAKE_COMPILER_IS_GNUCC OR (CMAKE_C_COMPILER_ID MATCHES "Clang"))
 	set(GENSRC_CFLAGS "-Wno-missing-prototypes")
 endif()
+if(CMAKE_C_COMPILER_ID MATCHES "Clang")
+	set(GENSRC_CFLAGS "${GENSRC_CFLAGS} -Wno-missing-variable-declarations")
+endif()
 
 if(GENSRC_CFLAGS)
 	set_source_files_properties(${GENSRC} PROPERTIES COMPILE_FLAGS "${GENSRC_CFLAGS}")
@@ -229,13 +232,6 @@ if(WITH_AUDASPACE)
 	)
 endif()
 
-if(WITH_CODEC_QUICKTIME)
-	list(APPEND INC
-		../../quicktime
-	)
-	add_definitions(-DWITH_QUICKTIME)
-endif()
-
 if(WITH_CODEC_FFMPEG)
 	list(APPEND INC
 		../../../../intern/ffmpeg
diff --git a/source/blender/makesrna/intern/makesrna.c b/source/blender/makesrna/intern/makesrna.c
index de436172bfd..9471d0e3fcf 100644
--- a/source/blender/makesrna/intern/makesrna.c
+++ b/source/blender/makesrna/intern/makesrna.c
@@ -2583,17 +2583,23 @@ static void rna_generate_blender(BlenderRNA *brna, FILE *f)
 {
 	StructRNA *srna;
 
-	fprintf(f, "BlenderRNA BLENDER_RNA = {");
-
+	fprintf(f,
+	        "BlenderRNA BLENDER_RNA = {\n"
+	        "\t.structs = {"
+	);
 	srna = brna->structs.first;
-	if (srna) fprintf(f, "{&RNA_%s, ", srna->identifier);
-	else fprintf(f, "{NULL, ");
+	if (srna) fprintf(f, "&RNA_%s, ", srna->identifier);
+	else      fprintf(f, "NULL, ");
 
 	srna = brna->structs.last;
-	if (srna) fprintf(f, "&RNA_%s}", srna->identifier);
-	else fprintf(f, "NULL}");
+	if (srna) fprintf(f, "&RNA_%s},\n", srna->identifier);
+	else      fprintf(f, "NULL},\n");
 
-	fprintf(f, "};\n\n");
+	fprintf(f,
+	        "\t.structs_map = NULL,\n"
+	        "\t.structs_len = 0,\n"
+	        "};\n\n"
+	);
 }
 
 static void rna_generate_property_prototypes(BlenderRNA *UNUSED(brna), StructRNA *srna, FILE *f)
diff --git a/source/blender/makesrna/intern/rna_ID.c b/source/blender/makesrna/intern/rna_ID.c
index a74758a4f71..bf767d47994 100644
--- a/source/blender/makesrna/intern/rna_ID.c
+++ b/source/blender/makesrna/intern/rna_ID.c
@@ -250,9 +250,10 @@ void rna_PropertyGroup_unregister(Main *UNUSED(bmain), StructRNA *type)
 	RNA_struct_free(&BLENDER_RNA, type);
 }
 
-StructRNA *rna_PropertyGroup_register(Main *UNUSED(bmain), ReportList *reports, void *data, const char *identifier,
-                                      StructValidateFunc validate, StructCallbackFunc UNUSED(call),
-                                      StructFreeFunc UNUSED(free))
+StructRNA *rna_PropertyGroup_register(
+        Main *UNUSED(bmain), ReportList *reports, void *data, const char *identifier,
+        StructValidateFunc validate, StructCallbackFunc UNUSED(call),
+        StructFreeFunc UNUSED(free))
 {
 	PointerRNA dummyptr;
 
diff --git a/source/blender/makesrna/intern/rna_access.c b/source/blender/makesrna/intern/rna_access.c
index 5a4db47d281..bfa1e7cef93 100644
--- a/source/blender/makesrna/intern/rna_access.c
+++ b/source/blender/makesrna/intern/rna_access.c
@@ -76,6 +76,9 @@ void RNA_init(void)
 	StructRNA *srna;
 	PropertyRNA *prop;
 
+	BLENDER_RNA.structs_map = BLI_ghash_str_new_ex(__func__, 2048);
+	BLENDER_RNA.structs_len = 0;
+
 	for (srna = BLENDER_RNA.structs.first; srna; srna = srna->cont.next) {
 		if (!srna->cont.prophash) {
 			srna->cont.prophash = BLI_ghash_str_new("RNA_init gh");
@@ -86,6 +89,9 @@ void RNA_init(void)
 				}
 			}
 		}
+		BLI_assert(srna->flag & STRUCT_PUBLIC_NAMESPACE);
+		BLI_ghash_insert(BLENDER_RNA.structs_map, (void *)srna->identifier, srna);
+		BLENDER_RNA.structs_len += 1;
 	}
 }
 
@@ -513,13 +519,7 @@ static const char *rna_ensure_property_name(const PropertyRNA *prop)
 
 StructRNA *RNA_struct_find(const char *identifier)
 {
-	StructRNA *type;
-	if (identifier) {
-		for (type = BLENDER_RNA.structs.first; type; type = type->cont.next)
-			if (STREQ(type->identifier, identifier))
-				return type;
-	}
-	return NULL;
+	return BLI_ghash_lookup(BLENDER_RNA.structs_map, identifier);
 }
 
 const char *RNA_struct_identifier(const StructRNA *type)
@@ -815,6 +815,89 @@ char *RNA_struct_name_get_alloc(PointerRNA *ptr, char *fixedbuf, int fixedlen, i
 	return NULL;
 }
 
+/**
+ * Use when registering structs with the #STRUCT_PUBLIC_NAMESPACE flag.
+ */
+bool RNA_struct_available_or_report(ReportList *reports, const char *identifier)
+{
+	const StructRNA *srna_exists = RNA_struct_find(identifier);
+	if (UNLIKELY(srna_exists != NULL)) {
+		/* Use comprehensive string construction since this is such a rare occurrence
+		 * and information here may cut down time troubleshooting. */
+		DynStr *dynstr = BLI_dynstr_new();
+		BLI_dynstr_appendf(dynstr, "Type identifier '%s' is already in use: '", identifier);
+		BLI_dynstr_append(dynstr, srna_exists->identifier);
+		int i = 0;
+		if (srna_exists->base) {
+			for (const StructRNA *base = srna_exists->base; base; base = base->base) {
+				BLI_dynstr_append(dynstr, "(");
+				BLI_dynstr_append(dynstr, base->identifier);
+				i += 1;
+			}
+			while (i--) {
+				BLI_dynstr_append(dynstr, ")");
+			}
+		}
+		BLI_dynstr_append(dynstr, "'.");
+		char *result = BLI_dynstr_get_cstring(dynstr);
+		BLI_dynstr_free(dynstr);
+		BKE_report(reports, RPT_ERROR, result);
+		MEM_freeN(result);
+		return false;
+	}
+	else {
+		return true;
+	}
+}
+
+bool RNA_struct_bl_idname_ok_or_report(ReportList *reports, const char *identifier, const char *sep)
+{
+	const int len_sep = strlen(sep);
+	const int len_id = strlen(identifier);
+	const char *p = strstr(identifier, sep);
+	/* TODO: make error, for now warning until add-ons update. */
+#if 1
+	const int report_level = RPT_WARNING;
+	const bool failure = true;
+#else
+	const int report_level = RPT_ERROR;
+	const bool failure = false;
+#endif
+	if (p == NULL || p == identifier || p + len_sep >= identifier + len_id) {
+		BKE_reportf(reports, report_level, "'%s' doesn't contain '%s' with prefix & suffix", identifier, sep);
+		return failure;
+	}
+
+	const char *c, *start, *end, *last;
+	start = identifier;
+	end = p;
+	last = end - 1;
+	for (c = start; c != end; c++) {
+		if (((*c >= 'A' && *c <= 'Z') ||
+		     ((c != start) && (*c >= '0' && *c <= '9')) ||
+		     ((c != start) && (c != last) && (*c == '_'))) == 0)
+		{
+			BKE_reportf(reports, report_level, "'%s' doesn't have upper case alpha-numeric prefix", identifier);
+			return failure;
+		}
+	}
+
+	start = p + len_sep;
+	end = identifier + len_id;
+	last = end - 1;
+	for (c = start; c != end; c++) {
+		if (((*c >= 'A' && *c <= 'Z') ||
+		     (*c >= 'a' && *c <= 'z') ||
+		     (*c >= '0' && *c <= '9') ||
+		     ((c != start) && (c != last) && (*c == '_'))) == 0)
+		{
+			BKE_reportf(reports, report_level, "'%s' doesn't have an alpha-numeric suffix", identifier);
+			return failure;
+		}
+	}
+	return true;
+}
+
 /* Property Information */
 
 const char *RNA_property_identifier(PropertyRNA *prop)
diff --git a/source/blender/makesrna/intern/rna_animation.c b/source/blender/makesrna/intern/rna_animation.c
index f271bccd326..47b2c84a67f 100644
--- a/source/blender/makesrna/intern/rna_animation.c
+++ b/source/blender/makesrna/intern/rna_animation.c
@@ -246,8 +246,9 @@ static void rna_KeyingSetInfo_unregister(Main *bmain, StructRNA *type)
 	ANIM_keyingset_info_unregister(bmain, ksi);
 }
 
-static StructRNA *rna_KeyingSetInfo_register(Main *bmain, ReportList *reports, void *data, const char *identifier,
-                                             StructValidateFunc validate, StructCallbackFunc call, StructFreeFunc free)
+static StructRNA *rna_KeyingSetInfo_register(
+        Main *bmain, ReportList *reports, void *data, const char *identifier,
+        StructValidateFunc validate, StructCallbackFunc call, StructFreeFunc free)
 {
 	KeyingSetInfo dummyksi = {NULL};
 	KeyingSetInfo *ksi;
@@ -270,9 +271,10 @@ static StructRNA *rna_KeyingSetInfo_register(Main *bmain, ReportList *reports, v
 	
 	/* check if we have registered this info before, and remove it */
 	ksi = ANIM_keyingset_info_find_name(dummyksi.idname);
-	if (ksi && ksi->ext.srna)
+	if (ksi && ksi->ext.srna) {
 		rna_KeyingSetInfo_unregister(bmain, ksi->ext.srna);
-	
+	}
+
 	/* create a new KeyingSetInfo type */
 	ksi = MEM_callocN(sizeof(KeyingSetInfo), "python keying set info");
 	memcpy(ksi, &dummyksi, sizeof(KeyingSetInfo));
diff --git a/source/blender/makesrna/intern/rna_armature.c b/source/blender/makesrna/intern/rna_armature.c
index 891f5c43ca6..ec700eb00de 100644
--- a/source/blender/makesrna/intern/rna_armature.c
+++ b/source/blender/makesrna/intern/rna_armature.c
@@ -480,7 +480,7 @@ static int rna_Armature_is_editmode_get(PointerRNA *ptr)
 
 static void rna_Armature_transform(struct bArmature *arm, float *mat)
 {
-	ED_armature_transform(arm, (float (*)[4])mat);
+	ED_armature_transform(arm, (float (*)[4])mat, true);
 }
 
 #else
diff --git a/source/blender/makesrna/intern/rna_brush.c b/source/blender/makesrna/intern/rna_brush.c
index ac348c1750c..fe8e1bb7e6e 100644
--- a/source/blender/makesrna/intern/rna_brush.c
+++ b/source/blender/makesrna/intern/rna_brush.c
@@ -94,6 +94,21 @@ EnumPropertyItem rna_enum_brush_vertex_tool_items[] = {
 	{PAINT_BLEND_BLUR, "BLUR", ICON_BRUSH_BLUR, "Blur", "Blur the color with surrounding values"},
 	{PAINT_BLEND_LIGHTEN, "LIGHTEN", ICON_BRUSH_LIGHTEN, "Lighten", "Use lighten blending mode while painting"},
 	{PAINT_BLEND_DARKEN, "DARKEN", ICON_BRUSH_DARKEN, "Darken", "Use darken blending mode while painting"},
+	{PAINT_BLEND_AVERAGE, "AVERAGE", ICON_BRUSH_BLUR, "Average", "Use average blending mode while painting"},
+	{PAINT_BLEND_SMEAR, "SMEAR", ICON_BRUSH_BLUR, "Smear", "Use smear blending mode while painting"},
+	{PAINT_BLEND_COLORDODGE, "COLORDODGE", ICON_BRUSH_BLUR, "Color Dodge", "Use color dodge blending mode while painting" },
+	{PAINT_BLEND_DIFFERENCE, "DIFFERENCE", ICON_BRUSH_BLUR, "Difference", "Use difference blending mode while painting"},
+	{PAINT_BLEND_SCREEN, "SCREEN", ICON_BRUSH_BLUR, "Screen", "Use screen blending mode while painting"},
+	{PAINT_BLEND_HARDLIGHT, "HARDLIGHT", ICON_BRUSH_BLUR, "Hardlight", "Use hardlight blending mode while painting"},
+	{PAINT_BLEND_OVERLAY, "OVERLAY", ICON_BRUSH_BLUR, "Overlay", "Use overlay blending mode while painting"},
+	{PAINT_BLEND_SOFTLIGHT, "SOFTLIGHT", ICON_BRUSH_BLUR, "Softlight", "Use softlight blending mode while painting"},
+	{PAINT_BLEND_EXCLUSION, "EXCLUSION", ICON_BRUSH_BLUR, "Exclusion", "Use exclusion blending mode while painting"},
+	{PAINT_BLEND_LUMINOCITY, "LUMINOCITY", ICON_BRUSH_BLUR, "Luminocity", "Use luminocity blending mode while painting"},
+	{PAINT_BLEND_SATURATION, "SATURATION", ICON_BRUSH_BLUR, "Saturation", "Use saturation blending mode while painting"},
+	{PAINT_BLEND_HUE, "HUE", ICON_BRUSH_BLUR, "Hue", "Use hue blending mode while painting"},
+	{PAINT_BLEND_ALPHA_SUB, "ERASE_ALPHA", 0, "Erase Alpha", "Erase alpha while painting"},
+	{PAINT_BLEND_ALPHA_ADD, "ADD_ALPHA", 0, "Add Alpha", "Add alpha while painting"},
+
 	{0, NULL, 0, NULL, NULL}
 };
 	
@@ -1248,7 +1263,7 @@ static void rna_def_brush(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Restore Mesh", "Allow a single dot to be carefully positioned");
 	RNA_def_property_update(prop, 0, "rna_Brush_update");
 
-	/* only for projection paint, TODO, other paint modes */
+	/* only for projection paint & vertex paint, TODO, other paint modes */
 	prop = RNA_def_property(srna, "use_alpha", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_negative_sdna(prop, NULL, "flag", BRUSH_LOCK_ALPHA);
 	RNA_def_property_ui_text(prop, "Alpha", "When this is disabled, lock alpha while painting");
diff --git a/source/blender/makesrna/intern/rna_curve_api.c b/source/blender/makesrna/intern/rna_curve_api.c
index b4b3aa84ec5..be6808567bb 100644
--- a/source/blender/makesrna/intern/rna_curve_api.c
+++ b/source/blender/makesrna/intern/rna_curve_api.c
@@ -45,7 +45,7 @@
 #ifdef RNA_RUNTIME
 static void rna_Curve_transform(Curve *cu, float *mat, int shape_keys)
 {
-	BKE_curve_transform(cu, (float (*)[4])mat, shape_keys);
+	BKE_curve_transform(cu, (float (*)[4])mat, shape_keys, true);
 
 	DAG_id_tag_update(&cu->id, 0);
 }
diff --git a/source/blender/makesrna/intern/rna_define.c b/source/blender/makesrna/intern/rna_define.c
index 42c0344f46e..118dd0b15de 100644
--- a/source/blender/makesrna/intern/rna_define.c
+++ b/source/blender/makesrna/intern/rna_define.c
@@ -44,6 +44,8 @@
 
 #include "BLT_translation.h"
 
+#include "UI_interface.h"  /* For things like UI_PRECISION_FLOAT_MAX... */
+
 #include "RNA_define.h"
 
 #include "rna_internal.h"
@@ -135,6 +137,38 @@ void rna_freelistN(ListBase *listbase)
 	listbase->first = listbase->last = NULL;
 }
 
+static void rna_brna_structs_add(BlenderRNA *brna, StructRNA *srna)
+{
+	rna_addtail(&brna->structs, srna);
+	brna->structs_len += 1;
+
+	/* This exception is only needed for pre-processing.
+	 * otherwise we don't allow empty names. */
+	if ((srna->flag & STRUCT_PUBLIC_NAMESPACE) &&
+	    (srna->identifier[0] != '\0'))
+	{
+		BLI_ghash_insert(brna->structs_map, (void *)srna->identifier, srna);
+	}
+}
+
+#ifdef RNA_RUNTIME
+static void rna_brna_structs_remove_and_free(BlenderRNA *brna, StructRNA *srna)
+{
+	if ((srna->flag & STRUCT_PUBLIC_NAMESPACE) && brna->structs_map) {
+		if (srna->identifier[0] != '\0') {
+			BLI_ghash_remove(brna->structs_map, (void *)srna->identifier, NULL, NULL);
+		}
+	}
+
+	RNA_def_struct_free_pointers(NULL, srna);
+
+	if (srna->flag & STRUCT_RUNTIME) {
+		rna_freelinkN(&brna->structs, srna);
+	}
+	brna->structs_len -= 1;
+}
+#endif
+
 StructDefRNA *rna_find_struct_def(StructRNA *srna)
 {
 	StructDefRNA *dsrna;
@@ -534,6 +568,8 @@ BlenderRNA *RNA_create(void)
 	const char *error_message = NULL;
 
 	BLI_listbase_clear(&DefRNA.structs);
+	brna->structs_map = BLI_ghash_str_new_ex(__func__, 2048);
+
 	DefRNA.error = 0;
 	DefRNA.preprocess = 1;
 
@@ -640,10 +676,8 @@ void RNA_struct_free(BlenderRNA *brna, StructRNA *srna)
 			rna_freelinkN(&srna->functions, func);
 	}
 
-	RNA_def_struct_free_pointers(srna);
 
-	if (srna->flag & STRUCT_RUNTIME)
-		rna_freelinkN(&brna->structs, srna);
+	rna_brna_structs_remove_and_free(brna, srna);
 #else
 	UNUSED_VARS(brna, srna);
 #endif
@@ -654,6 +688,9 @@ void RNA_free(BlenderRNA *brna)
 	StructRNA *srna, *nextsrna;
 	FunctionRNA *func;
 
+	BLI_ghash_free(brna->structs_map, NULL, NULL);
+	brna->structs_map = NULL;
+
 	if (DefRNA.preprocess) {
 		RNA_define_free(brna);
 
@@ -730,12 +767,19 @@ StructRNA *RNA_def_struct_ptr(BlenderRNA *brna, const char *identifier, StructRN
 		BLI_listbase_clear(&srna->functions);
 		srna->py_type = NULL;
 
+		srna->base = srnafrom;
+
 		if (DefRNA.preprocess) {
-			srna->base = srnafrom;
 			dsfrom = rna_find_def_struct(srnafrom);
 		}
-		else
-			srna->base = srnafrom;
+		else {
+			if (srnafrom->flag & STRUCT_PUBLIC_NAMESPACE_INHERIT) {
+				srna->flag |= STRUCT_PUBLIC_NAMESPACE | STRUCT_PUBLIC_NAMESPACE_INHERIT;
+			}
+			else {
+				srna->flag &= ~(STRUCT_PUBLIC_NAMESPACE | STRUCT_PUBLIC_NAMESPACE_INHERIT);
+			}
+		}
 	}
 
 	srna->identifier = identifier;
@@ -747,7 +791,11 @@ StructRNA *RNA_def_struct_ptr(BlenderRNA *brna, const char *identifier, StructRN
 	if (!srnafrom)
 		srna->icon = ICON_DOT;
 
-	rna_addtail(&brna->structs, srna);
+	if (DefRNA.preprocess) {
+		srna->flag |= STRUCT_PUBLIC_NAMESPACE;
+	}
+
+	rna_brna_structs_add(brna, srna);
 
 	if (DefRNA.preprocess) {
 		ds = MEM_callocN(sizeof(StructDefRNA), "StructDefRNA");
@@ -819,10 +867,8 @@ StructRNA *RNA_def_struct(BlenderRNA *brna, const char *identifier, const char *
 
 	if (from) {
 		/* find struct to derive from */
-		for (srnafrom = brna->structs.first; srnafrom; srnafrom = srnafrom->cont.next)
-			if (STREQ(srnafrom->identifier, from))
-				break;
-
+		/* Inline RNA_struct_find(...) because it wont link from here. */
+		srnafrom = BLI_ghash_lookup(brna->structs_map, from);
 		if (!srnafrom) {
 			fprintf(stderr, "%s: struct %s not found to define %s.\n", __func__, from, identifier);
 			DefRNA.error = 1;
@@ -901,10 +947,7 @@ void RNA_def_struct_nested(BlenderRNA *brna, StructRNA *srna, const char *struct
 	StructRNA *srnafrom;
 
 	/* find struct to derive from */
-	for (srnafrom = brna->structs.first; srnafrom; srnafrom = srnafrom->cont.next)
-		if (STREQ(srnafrom->identifier, structname))
-			break;
-
+	srnafrom = BLI_ghash_lookup(brna->structs_map, structname);
 	if (!srnafrom) {
 		fprintf(stderr, "%s: struct %s not found for %s.\n", __func__, structname, srna->identifier);
 		DefRNA.error = 1;
@@ -965,7 +1008,32 @@ void RNA_def_struct_path_func(StructRNA *srna, const char *path)
 	if (path) srna->path = (StructPathFunc)path;
 }
 
-void RNA_def_struct_identifier(StructRNA *srna, const char *identifier)
+void RNA_def_struct_identifier(BlenderRNA *brna, StructRNA *srna, const char *identifier)
+{
+	if (DefRNA.preprocess) {
+		fprintf(stderr, "%s: only at runtime.\n", __func__);
+		return;
+	}
+
+	/* Operator registration may set twice, see: operator_properties_init */
+	if (srna->flag & STRUCT_PUBLIC_NAMESPACE) {
+		if (identifier != srna->identifier) {
+			if (srna->identifier[0] != '\0') {
+				BLI_ghash_remove(brna->structs_map, (void *)srna->identifier, NULL, NULL);
+			}
+			if (identifier[0] != '\0') {
+				BLI_ghash_insert(brna->structs_map, (void *)identifier, srna);
+			}
+		}
+	}
+
+	srna->identifier = identifier;
+}
+
+/**
+ * Only used in one case when we name the struct for the purpose of useful error messages.
+ */
+void RNA_def_struct_identifier_no_struct_map(StructRNA *srna, const char *identifier)
 {
 	if (DefRNA.preprocess) {
 		fprintf(stderr, "%s: only at runtime.\n", __func__);
@@ -1339,13 +1407,13 @@ void RNA_def_property_ui_icon(PropertyRNA *prop, int icon, bool consecutive)
  * For ints, whole values are used.
  *
  * \param precision The number of zeros to show
- * (as a whole number - common range is 1 - 6), see PRECISION_FLOAT_MAX
+ * (as a whole number - common range is 1 - 6), see UI_PRECISION_FLOAT_MAX
  */
 void RNA_def_property_ui_range(PropertyRNA *prop, double min, double max, double step, int precision)
 {
 	StructRNA *srna = DefRNA.laststruct;
 
-#ifdef DEBUG
+#ifndef NDEBUG
 	if (min > max) {
 		fprintf(stderr, "%s: \"%s.%s\", min > max.\n",
 		        __func__, srna->identifier, prop->identifier);
@@ -1358,8 +1426,8 @@ void RNA_def_property_ui_range(PropertyRNA *prop, double min, double max, double
 		DefRNA.error = 1;
 	}
 
-	if (precision < -1 || precision > 10) {
-		fprintf(stderr, "%s: \"%s.%s\", step outside range.\n",
+	if (precision < -1 || precision > UI_PRECISION_FLOAT_MAX) {
+		fprintf(stderr, "%s: \"%s.%s\", precision outside range.\n",
 		        __func__, srna->identifier, prop->identifier);
 		DefRNA.error = 1;
 	}
@@ -1381,21 +1449,6 @@ void RNA_def_property_ui_range(PropertyRNA *prop, double min, double max, double
 			fprop->softmax = (float)max;
 			fprop->step = (float)step;
 			fprop->precision = (int)precision;
-#if 0 /* handy but annoying */
-			if (DefRNA.preprocess) {
-				/* check we're not over PRECISION_FLOAT_MAX */
-				if (fprop->precision > 6) {
-					fprintf(stderr, "%s: \"%s.%s\", precision value over maximum.\n",
-					        __func__, srna->identifier, prop->identifier);
-					DefRNA.error = 1;
-				}
-				else if (fprop->precision < 1) {
-					fprintf(stderr, "%s: \"%s.%s\", precision value under minimum.\n",
-					        __func__, srna->identifier, prop->identifier);
-					DefRNA.error = 1;
-				}
-			}
-#endif
 			break;
 		}
 		default:
@@ -3262,21 +3315,41 @@ void RNA_enum_item_end(EnumPropertyItem **items, int *totitem)
 /* Memory management */
 
 #ifdef RNA_RUNTIME
-void RNA_def_struct_duplicate_pointers(StructRNA *srna)
+void RNA_def_struct_duplicate_pointers(BlenderRNA *brna, StructRNA *srna)
 {
-	if (srna->identifier) srna->identifier = BLI_strdup(srna->identifier);
-	if (srna->name) srna->name = BLI_strdup(srna->name);
-	if (srna->description) srna->description = BLI_strdup(srna->description);
+	if (srna->identifier) {
+		srna->identifier = BLI_strdup(srna->identifier);
+		if (srna->flag & STRUCT_PUBLIC_NAMESPACE) {
+			BLI_ghash_replace_key(brna->structs_map, (void *)srna->identifier);
+		}
+	}
+	if (srna->name) {
+		srna->name = BLI_strdup(srna->name);
+	}
+	if (srna->description) {
+		srna->description = BLI_strdup(srna->description);
+	}
 
 	srna->flag |= STRUCT_FREE_POINTERS;
 }
 
-void RNA_def_struct_free_pointers(StructRNA *srna)
+void RNA_def_struct_free_pointers(BlenderRNA *brna, StructRNA *srna)
 {
 	if (srna->flag & STRUCT_FREE_POINTERS) {
-		if (srna->identifier) MEM_freeN((void *)srna->identifier);
-		if (srna->name) MEM_freeN((void *)srna->name);
-		if (srna->description) MEM_freeN((void *)srna->description);
+		if (srna->identifier) {
+			if (srna->flag & STRUCT_PUBLIC_NAMESPACE) {
+				if (brna != NULL) {
+					BLI_ghash_remove(brna->structs_map, (void *)srna->identifier, NULL, NULL);
+				}
+			}
+			MEM_freeN((void *)srna->identifier);
+		}
+		if (srna->name) {
+			MEM_freeN((void *)srna->name);
+		}
+		if (srna->description) {
+			MEM_freeN((void *)srna->description);
+		}
 	}
 }
 
diff --git a/source/blender/makesrna/intern/rna_gpencil.c b/source/blender/makesrna/intern/rna_gpencil.c
index 6e0d6ad2bcd..79e1e95b27a 100644
--- a/source/blender/makesrna/intern/rna_gpencil.c
+++ b/source/blender/makesrna/intern/rna_gpencil.c
@@ -74,7 +74,7 @@ static void rna_GPencil_editmode_update(Main *UNUSED(bmain), Scene *UNUSED(scene
 {
 	/* Notify all places where GPencil data lives that the editing state is different */
 	WM_main_add_notifier(NC_GPENCIL | NA_EDITED, NULL);
-	WM_main_add_notifier(NC_SCENE | ND_MODE, NULL);
+	WM_main_add_notifier(NC_SCENE | ND_MODE | NC_MOVIECLIP, NULL);
 }
 
 static void rna_GPencil_onion_skinning_update(Main *bmain, Scene *scene, PointerRNA *ptr)
diff --git a/source/blender/makesrna/intern/rna_image.c b/source/blender/makesrna/intern/rna_image.c
index b6e84cf8ac3..5ca7e624d88 100644
--- a/source/blender/makesrna/intern/rna_image.c
+++ b/source/blender/makesrna/intern/rna_image.c
@@ -192,6 +192,8 @@ static char *rna_ImageUser_path(PointerRNA *ptr)
 			{
 				return rna_Node_ImageUser_path(ptr);
 			}
+			default:
+				break;
 		}
 	}
 	
diff --git a/source/blender/makesrna/intern/rna_image_api.c b/source/blender/makesrna/intern/rna_image_api.c
index 344c1781b46..61f1edc0af5 100644
--- a/source/blender/makesrna/intern/rna_image_api.c
+++ b/source/blender/makesrna/intern/rna_image_api.c
@@ -67,7 +67,7 @@
 static void rna_ImagePackedFile_save(ImagePackedFile *imapf, ReportList *reports)
 {
 	if (writePackedFile(reports, imapf->filepath, imapf->packedfile, 0) != RET_OK) {
-		BKE_reportf(reports, RPT_ERROR, "Image could not save packed file to '%s'",
+		BKE_reportf(reports, RPT_ERROR, "Could not save packed file to disk as '%s'",
 		            imapf->filepath);
 	}
 }
@@ -291,7 +291,7 @@ static void rna_Image_filepath_from_user(Image *image, ImageUser *image_user, ch
 
 static void rna_Image_buffers_free(Image *image)
 {
-	BKE_image_free_buffers(image);
+	BKE_image_free_buffers_ex(image, true);
 }
 
 #else
diff --git a/source/blender/makesrna/intern/rna_internal_types.h b/source/blender/makesrna/intern/rna_internal_types.h
index df591659fdb..a470c807091 100644
--- a/source/blender/makesrna/intern/rna_internal_types.h
+++ b/source/blender/makesrna/intern/rna_internal_types.h
@@ -413,6 +413,11 @@ struct StructRNA {
 
 struct BlenderRNA {
 	ListBase structs;
+	/* A map of structs: {StructRNA.identifier -> StructRNA}
+	 * These are ensured to have unique names (with STRUCT_PUBLIC_NAMESPACE enabled). */
+	struct GHash *structs_map;
+	/* Needed because types with an empty identifier aren't included in 'structs_map'. */
+	unsigned int  structs_len;
 };
 
 #define CONTAINER_RNA_ID(cont) (*(const char **)(((ContainerRNA *)(cont))+1))
diff --git a/source/blender/makesrna/intern/rna_key.c b/source/blender/makesrna/intern/rna_key.c
index a5abc8a3be2..b960890457b 100644
--- a/source/blender/makesrna/intern/rna_key.c
+++ b/source/blender/makesrna/intern/rna_key.c
@@ -178,6 +178,8 @@ static Mesh *rna_KeyBlock_normals_get_mesh(PointerRNA *ptr, ID *id)
 					return ob->data;
 				}
 			}
+			default:
+				break;
 		}
 	}
 
diff --git a/source/blender/makesrna/intern/rna_main_api.c b/source/blender/makesrna/intern/rna_main_api.c
index c110dbff6c4..871f50e992e 100644
--- a/source/blender/makesrna/intern/rna_main_api.c
+++ b/source/blender/makesrna/intern/rna_main_api.c
@@ -123,7 +123,8 @@ static void rna_idname_validate(const char *name, char *r_name)
 }
 
 
-static void rna_Main_ID_remove(Main *bmain, ReportList *reports, PointerRNA *id_ptr, int do_unlink)
+static void rna_Main_ID_remove(Main *bmain, ReportList *reports, PointerRNA *id_ptr,
+                               int do_unlink, int do_id_user, int do_ui_user)
 {
 	ID *id = id_ptr->data;
 	if (do_unlink) {
@@ -131,7 +132,7 @@ static void rna_Main_ID_remove(Main *bmain, ReportList *reports, PointerRNA *id_
 		RNA_POINTER_INVALIDATE(id_ptr);
 	}
 	else if (ID_REAL_USERS(id) <= 0) {
-		BKE_libblock_free(bmain, id);
+		BKE_libblock_free_ex(bmain, id, do_id_user, do_ui_user);
 		RNA_POINTER_INVALIDATE(id_ptr);
 	}
 	else {
@@ -184,7 +185,7 @@ static void rna_Main_scenes_remove(Main *bmain, bContext *C, ReportList *reports
 
 			}
 		}
-		rna_Main_ID_remove(bmain, reports, scene_ptr, do_unlink);
+		rna_Main_ID_remove(bmain, reports, scene_ptr, do_unlink, true, true);
 	}
 	else {
 		BKE_reportf(reports, RPT_ERROR, "Scene '%s' is the last, cannot be removed", scene->id.name + 2);
@@ -661,6 +662,10 @@ void RNA_def_main_cameras(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_boolean(func, "do_unlink", true, "",
 	                "Unlink all usages of this camera before deleting it "
 	                "(WARNING: will also delete objects instancing that camera data)");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this camera");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this camera");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_cameras_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -739,6 +744,10 @@ void RNA_def_main_objects(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this object before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this object");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this object");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_objects_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -776,6 +785,10 @@ void RNA_def_main_materials(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this material before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this material");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this material");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_materials_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -820,6 +833,10 @@ void RNA_def_main_node_groups(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this node tree before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this node tree");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this node tree");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_node_groups_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -881,6 +898,10 @@ void RNA_def_main_meshes(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_boolean(func, "do_unlink", true, "",
 	                "Unlink all usages of this mesh before deleting it "
 	                "(WARNING: will also delete objects instancing that mesh data)");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this mesh data");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this mesh data");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_meshes_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -921,6 +942,10 @@ void RNA_def_main_lamps(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_boolean(func, "do_unlink", true, "",
 	                "Unlink all usages of this lamp before deleting it "
 	                "(WARNING: will also delete objects instancing that lamp data)");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this lamp data");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this lamp data");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_lamps_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1037,6 +1062,10 @@ void RNA_def_main_images(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this image before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this image");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this image");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_images_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1076,6 +1105,10 @@ void RNA_def_main_lattices(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_boolean(func, "do_unlink", true, "",
 	                "Unlink all usages of this lattice before deleting it "
 	                "(WARNING: will also delete objects instancing that lattice data)");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this lattice data");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this lattice data");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_lattices_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1116,6 +1149,10 @@ void RNA_def_main_curves(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_boolean(func, "do_unlink", true, "",
 	                "Unlink all usages of this curve before deleting it "
 	                "(WARNING: will also delete objects instancing that curve data)");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this curve data");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this curve data");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_curves_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1154,6 +1191,10 @@ void RNA_def_main_metaballs(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_boolean(func, "do_unlink", true, "",
 	                "Unlink all usages of this metaball before deleting it "
 	                "(WARNING: will also delete objects instancing that metaball data)");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this metaball data");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this metaball data");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_metaballs_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1192,6 +1233,10 @@ void RNA_def_main_fonts(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this font before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this font");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this font");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_fonts_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1230,6 +1275,10 @@ void RNA_def_main_textures(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this texture before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this texture");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this texture");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_textures_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1267,6 +1316,10 @@ void RNA_def_main_brushes(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this brush before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this brush");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this brush");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_brushes_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1304,6 +1357,10 @@ void RNA_def_main_worlds(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this world before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this world");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this world");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_worlds_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1341,6 +1398,10 @@ void RNA_def_main_groups(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this group before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this group");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this group");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_groups_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1380,6 +1441,10 @@ void RNA_def_main_speakers(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_boolean(func, "do_unlink", true, "",
 	                "Unlink all usages of this speaker before deleting it "
 	                "(WARNING: will also delete objects instancing that speaker data)");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this speaker data");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this speaker data");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_speakers_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1417,6 +1482,10 @@ void RNA_def_main_texts(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this text before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this text");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this text");
 
 	/* load func */
 	func = RNA_def_function(srna, "load", "rna_Main_texts_load");
@@ -1467,6 +1536,10 @@ void RNA_def_main_sounds(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this sound before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this sound");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this sound");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_sounds_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1506,6 +1579,10 @@ void RNA_def_main_armatures(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_boolean(func, "do_unlink", true, "",
 	                "Unlink all usages of this armature before deleting it "
 	                "(WARNING: will also delete objects instancing that armature data)");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this armature data");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this armature data");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_armatures_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1542,6 +1619,10 @@ void RNA_def_main_actions(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this action before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this action");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this action");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_actions_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1578,6 +1659,10 @@ void RNA_def_main_particles(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of those particle settings before deleting them");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this particle settings");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this particle settings");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_particles_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1614,6 +1699,10 @@ void RNA_def_main_palettes(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this palette before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this palette");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this palette");
 
 	func = RNA_def_function(srna, "tag", "rna_Main_palettes_tag");
 	parm = RNA_def_boolean(func, "value", 0, "Value", "");
@@ -1694,6 +1783,10 @@ void RNA_def_main_gpencil(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this grease pencil before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this grease pencil");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this grease pencil");
 
 	prop = RNA_def_property(srna, "is_updated", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
@@ -1723,6 +1816,10 @@ void RNA_def_main_movieclips(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this movie clip before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this movie clip");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this movie clip");
 
 	/* load func */
 	func = RNA_def_function(srna, "load", "rna_Main_movieclip_load");
@@ -1775,6 +1872,10 @@ void RNA_def_main_masks(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this mask before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this mask");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this mask");
 
 	prop = RNA_def_property(srna, "is_updated", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
@@ -1812,6 +1913,10 @@ void RNA_def_main_linestyles(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 	RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);
 	RNA_def_boolean(func, "do_unlink", true, "", "Unlink all usages of this line style before deleting it");
+	RNA_def_boolean(func, "do_id_user", true, "",
+	                "Decrement user counter of all datablocks used by this line style");
+	RNA_def_boolean(func, "do_ui_user", true, "",
+	                "Make sure interface does not reference this line style");
 
 	prop = RNA_def_property(srna, "is_updated", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
diff --git a/source/blender/makesrna/intern/rna_mesh.c b/source/blender/makesrna/intern/rna_mesh.c
index ad5f320625c..650caf20093 100644
--- a/source/blender/makesrna/intern/rna_mesh.c
+++ b/source/blender/makesrna/intern/rna_mesh.c
@@ -46,6 +46,7 @@
 #include "RNA_access.h"
 #include "RNA_define.h"
 #include "RNA_types.h"
+#include "RNA_enum_types.h"
 
 #include "rna_internal.h"
 
@@ -303,7 +304,7 @@ static float rna_MeshVertex_bevel_weight_get(PointerRNA *ptr)
 static void rna_MeshVertex_bevel_weight_set(PointerRNA *ptr, float value)
 {
 	MVert *mvert = (MVert *)ptr->data;
-	mvert->bweight = (char)(CLAMPIS(value * 255.0f, 0, 255));
+	mvert->bweight = round_fl_to_uchar_clamp(value * 255.0f);
 }
 
 static float rna_MEdge_bevel_weight_get(PointerRNA *ptr)
@@ -315,7 +316,7 @@ static float rna_MEdge_bevel_weight_get(PointerRNA *ptr)
 static void rna_MEdge_bevel_weight_set(PointerRNA *ptr, float value)
 {
 	MEdge *medge = (MEdge *)ptr->data;
-	medge->bweight = (char)(CLAMPIS(value * 255.0f, 0, 255));
+	medge->bweight = round_fl_to_uchar_clamp(value * 255.0f);
 }
 
 static float rna_MEdge_crease_get(PointerRNA *ptr)
@@ -327,7 +328,7 @@ static float rna_MEdge_crease_get(PointerRNA *ptr)
 static void rna_MEdge_crease_set(PointerRNA *ptr, float value)
 {
 	MEdge *medge = (MEdge *)ptr->data;
-	medge->crease = (char)(CLAMPIS(value * 255.0f, 0, 255));
+	medge->crease = round_fl_to_uchar_clamp(value * 255.0f);
 }
 
 static void rna_MeshLoop_normal_get(PointerRNA *ptr, float *values)
@@ -585,15 +586,17 @@ static void rna_MeshColor_color1_set(PointerRNA *ptr, const float *values)
 {
 	MCol *mcol = (MCol *)ptr->data;
 
-	(&mcol[0].r)[2] = (char)(CLAMPIS(values[0] * 255.0f, 0, 255));
-	(&mcol[0].r)[1] = (char)(CLAMPIS(values[1] * 255.0f, 0, 255));
-	(&mcol[0].r)[0] = (char)(CLAMPIS(values[2] * 255.0f, 0, 255));
+	(&mcol[0].r)[2] = round_fl_to_uchar_clamp(values[0] * 255.0f);
+	(&mcol[0].r)[1] = round_fl_to_uchar_clamp(values[1] * 255.0f);
+	(&mcol[0].r)[0] = round_fl_to_uchar_clamp(values[2] * 255.0f);
+	(&mcol[0].r)[3] = round_fl_to_uchar_clamp(values[3] * 255.0f);
 }
 
 static void rna_MeshColor_color2_get(PointerRNA *ptr, float *values)
 {
 	MCol *mcol = (MCol *)ptr->data;
 
+	values[3] = (&mcol[1].r)[3] / 255.0f;
 	values[2] = (&mcol[1].r)[0] / 255.0f;
 	values[1] = (&mcol[1].r)[1] / 255.0f;
 	values[0] = (&mcol[1].r)[2] / 255.0f;
@@ -603,15 +606,17 @@ static void rna_MeshColor_color2_set(PointerRNA *ptr, const float *values)
 {
 	MCol *mcol = (MCol *)ptr->data;
 
-	(&mcol[1].r)[2] = (char)(CLAMPIS(values[0] * 255.0f, 0, 255));
-	(&mcol[1].r)[1] = (char)(CLAMPIS(values[1] * 255.0f, 0, 255));
-	(&mcol[1].r)[0] = (char)(CLAMPIS(values[2] * 255.0f, 0, 255));
+	(&mcol[1].r)[2] = round_fl_to_uchar_clamp(values[0] * 255.0f);
+	(&mcol[1].r)[1] = round_fl_to_uchar_clamp(values[1] * 255.0f);
+	(&mcol[1].r)[0] = round_fl_to_uchar_clamp(values[2] * 255.0f);
+	(&mcol[1].r)[3] = round_fl_to_uchar_clamp(values[3] * 255.0f);
 }
 
 static void rna_MeshColor_color3_get(PointerRNA *ptr, float *values)
 {
 	MCol *mcol = (MCol *)ptr->data;
 
+	values[3] = (&mcol[2].r)[3] / 255.0f;
 	values[2] = (&mcol[2].r)[0] / 255.0f;
 	values[1] = (&mcol[2].r)[1] / 255.0f;
 	values[0] = (&mcol[2].r)[2] / 255.0f;
@@ -621,9 +626,10 @@ static void rna_MeshColor_color3_set(PointerRNA *ptr, const float *values)
 {
 	MCol *mcol = (MCol *)ptr->data;
 
-	(&mcol[2].r)[2] = (char)(CLAMPIS(values[0] * 255.0f, 0, 255));
-	(&mcol[2].r)[1] = (char)(CLAMPIS(values[1] * 255.0f, 0, 255));
-	(&mcol[2].r)[0] = (char)(CLAMPIS(values[2] * 255.0f, 0, 255));
+	(&mcol[2].r)[2] = round_fl_to_uchar_clamp(values[0] * 255.0f);
+	(&mcol[2].r)[1] = round_fl_to_uchar_clamp(values[1] * 255.0f);
+	(&mcol[2].r)[0] = round_fl_to_uchar_clamp(values[2] * 255.0f);
+	(&mcol[2].r)[3] = round_fl_to_uchar_clamp(values[3] * 255.0f);
 }
 
 static void rna_MeshColor_color4_get(PointerRNA *ptr, float *values)
@@ -633,15 +639,17 @@ static void rna_MeshColor_color4_get(PointerRNA *ptr, float *values)
 	values[2] = (&mcol[3].r)[0] / 255.0f;
 	values[1] = (&mcol[3].r)[1] / 255.0f;
 	values[0] = (&mcol[3].r)[2] / 255.0f;
+	values[3] = (&mcol[3].r)[3] / 255.0f;
 }
 
 static void rna_MeshColor_color4_set(PointerRNA *ptr, const float *values)
 {
 	MCol *mcol = (MCol *)ptr->data;
 
-	(&mcol[3].r)[2] = (char)(CLAMPIS(values[0] * 255.0f, 0, 255));
-	(&mcol[3].r)[1] = (char)(CLAMPIS(values[1] * 255.0f, 0, 255));
-	(&mcol[3].r)[0] = (char)(CLAMPIS(values[2] * 255.0f, 0, 255));
+	(&mcol[3].r)[2] = round_fl_to_uchar_clamp(values[0] * 255.0f);
+	(&mcol[3].r)[1] = round_fl_to_uchar_clamp(values[1] * 255.0f);
+	(&mcol[3].r)[0] = round_fl_to_uchar_clamp(values[2] * 255.0f);
+	(&mcol[3].r)[3] = round_fl_to_uchar_clamp(values[3] * 255.0f);
 }
 
 static void rna_MeshLoopColor_color_get(PointerRNA *ptr, float *values)
@@ -651,15 +659,17 @@ static void rna_MeshLoopColor_color_get(PointerRNA *ptr, float *values)
 	values[0] = (&mcol->r)[0] / 255.0f;
 	values[1] = (&mcol->r)[1] / 255.0f;
 	values[2] = (&mcol->r)[2] / 255.0f;
+	values[3] = (&mcol->r)[3] / 255.0f;
 }
 
 static void rna_MeshLoopColor_color_set(PointerRNA *ptr, const float *values)
 {
 	MLoopCol *mcol = (MLoopCol *)ptr->data;
 
-	(&mcol->r)[0] = (char)(CLAMPIS(values[0] * 255.0f, 0, 255));
-	(&mcol->r)[1] = (char)(CLAMPIS(values[1] * 255.0f, 0, 255));
-	(&mcol->r)[2] = (char)(CLAMPIS(values[2] * 255.0f, 0, 255));
+	(&mcol->r)[0] = round_fl_to_uchar_clamp(values[0] * 255.0f);
+	(&mcol->r)[1] = round_fl_to_uchar_clamp(values[1] * 255.0f);
+	(&mcol->r)[2] = round_fl_to_uchar_clamp(values[2] * 255.0f);
+	(&mcol->r)[3] = round_fl_to_uchar_clamp(values[3] * 255.0f);
 }
 
 static int rna_Mesh_texspace_editable(PointerRNA *ptr, const char **UNUSED(r_info))
@@ -2503,28 +2513,28 @@ static void rna_def_mcol(BlenderRNA *brna)
 	RNA_def_struct_path_func(srna, "rna_MeshColor_path");
 
 	prop = RNA_def_property(srna, "color1", PROP_FLOAT, PROP_COLOR);
-	RNA_def_property_array(prop, 3);
+	RNA_def_property_array(prop, 4);
 	RNA_def_property_range(prop, 0.0f, 1.0f);
 	RNA_def_property_float_funcs(prop, "rna_MeshColor_color1_get", "rna_MeshColor_color1_set", NULL);
 	RNA_def_property_ui_text(prop, "Color 1", "");
 	RNA_def_property_update(prop, 0, "rna_Mesh_update_data");
 
 	prop = RNA_def_property(srna, "color2", PROP_FLOAT, PROP_COLOR);
-	RNA_def_property_array(prop, 3);
+	RNA_def_property_array(prop, 4);
 	RNA_def_property_range(prop, 0.0f, 1.0f);
 	RNA_def_property_float_funcs(prop, "rna_MeshColor_color2_get", "rna_MeshColor_color2_set", NULL);
 	RNA_def_property_ui_text(prop, "Color 2", "");
 	RNA_def_property_update(prop, 0, "rna_Mesh_update_data");
 
 	prop = RNA_def_property(srna, "color3", PROP_FLOAT, PROP_COLOR);
-	RNA_def_property_array(prop, 3);
+	RNA_def_property_array(prop, 4);
 	RNA_def_property_range(prop, 0.0f, 1.0f);
 	RNA_def_property_float_funcs(prop, "rna_MeshColor_color3_get", "rna_MeshColor_color3_set", NULL);
 	RNA_def_property_ui_text(prop, "Color 3", "");
 	RNA_def_property_update(prop, 0, "rna_Mesh_update_data");
 
 	prop = RNA_def_property(srna, "color4", PROP_FLOAT, PROP_COLOR);
-	RNA_def_property_array(prop, 3);
+	RNA_def_property_array(prop, 4);
 	RNA_def_property_range(prop, 0.0f, 1.0f);
 	RNA_def_property_float_funcs(prop, "rna_MeshColor_color4_get", "rna_MeshColor_color4_set", NULL);
 	RNA_def_property_ui_text(prop, "Color 4", "");
@@ -2574,7 +2584,7 @@ static void rna_def_mloopcol(BlenderRNA *brna)
 	RNA_def_struct_path_func(srna, "rna_MeshColor_path");
 
 	prop = RNA_def_property(srna, "color", PROP_FLOAT, PROP_COLOR);
-	RNA_def_property_array(prop, 3);
+	RNA_def_property_array(prop, 4);
 	RNA_def_property_range(prop, 0.0f, 1.0f);
 	RNA_def_property_float_funcs(prop, "rna_MeshLoopColor_color_get", "rna_MeshLoopColor_color_set", NULL);
 	RNA_def_property_ui_text(prop, "Color", "");
diff --git a/source/blender/makesrna/intern/rna_meta_api.c b/source/blender/makesrna/intern/rna_meta_api.c
index 3d8f375fd88..4c3fa787b94 100644
--- a/source/blender/makesrna/intern/rna_meta_api.c
+++ b/source/blender/makesrna/intern/rna_meta_api.c
@@ -45,7 +45,7 @@
 #ifdef RNA_RUNTIME
 static void rna_Meta_transform(struct MetaBall *mb, float *mat)
 {
-	BKE_mball_transform(mb, (float (*)[4])mat);
+	BKE_mball_transform(mb, (float (*)[4])mat, true);
 
 	DAG_id_tag_update(&mb->id, 0);
 }
diff --git a/source/blender/makesrna/intern/rna_modifier.c b/source/blender/makesrna/intern/rna_modifier.c
index 1a8dd05a7b5..74aa3759d2d 100644
--- a/source/blender/makesrna/intern/rna_modifier.c
+++ b/source/blender/makesrna/intern/rna_modifier.c
@@ -1518,26 +1518,40 @@ static void rna_def_modifier_mirror(BlenderRNA *brna)
 
 	prop = RNA_def_property(srna, "use_mirror_u", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "flag", MOD_MIR_MIRROR_U);
-	RNA_def_property_ui_text(prop, "Mirror U", "Mirror the U texture coordinate around the 0.5 point");
+	RNA_def_property_ui_text(prop, "Mirror U", "Mirror the U texture coordinate around the flip offset point");
 	RNA_def_property_update(prop, 0, "rna_Modifier_update");
 
 	prop = RNA_def_property(srna, "use_mirror_v", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "flag", MOD_MIR_MIRROR_V);
-	RNA_def_property_ui_text(prop, "Mirror V", "Mirror the V texture coordinate around the 0.5 point");
+	RNA_def_property_ui_text(prop, "Mirror V", "Mirror the V texture coordinate around the flip offset point");
 	RNA_def_property_update(prop, 0, "rna_Modifier_update");
 
 	prop = RNA_def_property(srna, "mirror_offset_u", PROP_FLOAT, PROP_FACTOR);
 	RNA_def_property_float_sdna(prop, NULL, "uv_offset[0]");
 	RNA_def_property_range(prop, -1, 1);
 	RNA_def_property_ui_range(prop, -1, 1, 2, 4);
-	RNA_def_property_ui_text(prop, "U Offset", "Amount to offset mirrored UVs from the 0.5 point on the U axis");
+	RNA_def_property_ui_text(prop, "Flip U Offset", "Amount to offset mirrored UVs flipping point from the 0.5 on the U axis");
 	RNA_def_property_update(prop, 0, "rna_Modifier_update");
 
 	prop = RNA_def_property(srna, "mirror_offset_v", PROP_FLOAT, PROP_FACTOR);
 	RNA_def_property_float_sdna(prop, NULL, "uv_offset[1]");
 	RNA_def_property_range(prop, -1, 1);
 	RNA_def_property_ui_range(prop, -1, 1, 2, 4);
-	RNA_def_property_ui_text(prop, "V Offset", "Amount to offset mirrored UVs from the 0.5 point on the V axis");
+	RNA_def_property_ui_text(prop, "Flip V Offset", "Amount to offset mirrored UVs flipping point from the 0.5 point on the V axis");
+	RNA_def_property_update(prop, 0, "rna_Modifier_update");
+
+	prop = RNA_def_property(srna, "offset_u", PROP_FLOAT, PROP_FACTOR);
+	RNA_def_property_float_sdna(prop, NULL, "uv_offset_copy[0]");
+	RNA_def_property_range(prop, -10000.0f, 10000.0f);
+	RNA_def_property_ui_range(prop, -1, 1, 2, 4);
+	RNA_def_property_ui_text(prop, "U Offset", "Mirrored UV offset on the U axis");
+	RNA_def_property_update(prop, 0, "rna_Modifier_update");
+
+	prop = RNA_def_property(srna, "offset_v", PROP_FLOAT, PROP_FACTOR);
+	RNA_def_property_float_sdna(prop, NULL, "uv_offset_copy[1]");
+	RNA_def_property_range(prop, -10000.0f, 10000.0f);
+	RNA_def_property_ui_range(prop, -1, 1, 2, 4);
+	RNA_def_property_ui_text(prop, "V Offset", "Mirrored UV offset on the V axis");
 	RNA_def_property_update(prop, 0, "rna_Modifier_update");
 
 	prop = RNA_def_property(srna, "merge_threshold", PROP_FLOAT, PROP_DISTANCE);
@@ -1974,9 +1988,26 @@ static void rna_def_modifier_boolean(BlenderRNA *brna)
 	prop = RNA_def_property(srna, "double_threshold", PROP_FLOAT, PROP_DISTANCE);
 	RNA_def_property_float_sdna(prop, NULL, "double_threshold");
 	RNA_def_property_range(prop, 0, 1.0f);
-	RNA_def_property_ui_range(prop, 0, 1, 0.0001, 7);
+	RNA_def_property_ui_range(prop, 0, 1, 0.0001, 6);
 	RNA_def_property_ui_text(prop, "Overlap Threshold",  "Threshold for checking overlapping geometry");
 	RNA_def_property_update(prop, 0, "rna_Modifier_update");
+
+	/* BMesh debugging options, only used when G_DEBUG is set */
+
+	/* BMesh intersection options */
+	static EnumPropertyItem debug_items[] = {
+		{eBooleanModifierBMeshFlag_BMesh_Separate, "SEPARATE", 0, "Separate", ""},
+		{eBooleanModifierBMeshFlag_BMesh_NoDissolve, "NO_DISSOLVE", 0, "NoDissolve", ""},
+		{eBooleanModifierBMeshFlag_BMesh_NoConnectRegions, "NO_CONNECT_REGIONS", 0, "NoConnectRegions", ""},
+		{0, NULL, 0, NULL, NULL}
+	};
+
+	prop = RNA_def_property(srna, "debug_options", PROP_ENUM, PROP_NONE);
+	RNA_def_property_enum_items(prop, debug_items);
+	RNA_def_property_enum_sdna(prop, NULL, "bm_flag");
+	RNA_def_property_flag(prop, PROP_ENUM_FLAG);
+	RNA_def_property_ui_text(prop, "Debug", "Debugging options, only when started with '-d'");
+	RNA_def_property_update(prop, 0, "rna_Modifier_update");
 }
 
 static void rna_def_modifier_array(BlenderRNA *brna)
@@ -3413,6 +3444,13 @@ static void rna_def_modifier_screw(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Screw", "Offset the revolution along its axis");
 	RNA_def_property_update(prop, 0, "rna_Modifier_update");
 
+	prop = RNA_def_property(srna, "merge_threshold", PROP_FLOAT, PROP_DISTANCE);
+	RNA_def_property_float_sdna(prop, NULL, "merge_dist");
+	RNA_def_property_range(prop, 0, FLT_MAX);
+	RNA_def_property_ui_range(prop, 0, 1, 1, 4);
+	RNA_def_property_ui_text(prop, "Merge Distance", "Limit below which to merge vertices");
+	RNA_def_property_update(prop, 0, "rna_Modifier_update");
+
 	prop = RNA_def_property(srna, "use_normal_flip", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "flag", MOD_SCREW_NORMAL_FLIP);
 	RNA_def_property_ui_text(prop, "Flip", "Flip normals of lathed faces");
@@ -3428,6 +3466,12 @@ static void rna_def_modifier_screw(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Object Screw", "Use the distance between the objects to make a screw");
 	RNA_def_property_update(prop, 0, "rna_Modifier_update");
 
+	/* Vertex merging parameters */
+	prop = RNA_def_property(srna, "use_merge_vertices", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "flag", MOD_SCREW_MERGE);
+	RNA_def_property_ui_text(prop, "Merge Vertices", "Merge adjacent vertices (screw offset must be zero)");
+	RNA_def_property_update(prop, 0, "rna_Modifier_update");
+
 	prop = RNA_def_property(srna, "use_smooth_shade", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "flag", MOD_SCREW_SMOOTH_SHADING);
 	RNA_def_property_ui_text(prop, "Smooth Shading", "Output faces with smooth shading rather than flat shaded");
diff --git a/source/blender/makesrna/intern/rna_nodetree.c b/source/blender/makesrna/intern/rna_nodetree.c
index 10422c85579..ee4608b550f 100644
--- a/source/blender/makesrna/intern/rna_nodetree.c
+++ b/source/blender/makesrna/intern/rna_nodetree.c
@@ -73,6 +73,13 @@ EnumPropertyItem rna_enum_node_socket_in_out_items[] = {
 };
 
 #ifndef RNA_RUNTIME
+static EnumPropertyItem rna_enum_node_socket_draw_shape_items[] = {
+	{SOCK_DRAW_SHAPE_CIRCLE, "CIRCLE", 0, "Circle", ""},
+	{SOCK_DRAW_SHAPE_SQUARE, "SQUARE", 0, "Square", ""},
+	{SOCK_DRAW_SHAPE_DIAMOND, "DIAMOND", 0, "Diamond", ""},
+	{0, NULL, 0, NULL, NULL }
+};
+
 static EnumPropertyItem node_socket_type_items[] = {
 	{SOCK_CUSTOM,  "CUSTOM",    0,    "Custom",    ""},
 	{SOCK_FLOAT,   "VALUE",     0,    "Value",     ""},
@@ -238,10 +245,10 @@ bNodeTreeType *rna_node_tree_type_from_enum(int value)
 
 EnumPropertyItem *rna_node_tree_type_itemf(void *data, int (*poll)(void *data, bNodeTreeType *), bool *r_free)
 {
-	EnumPropertyItem tmp = {0, "", 0, "", ""};
+	EnumPropertyItem tmp = {0};
 	EnumPropertyItem *item = NULL;
 	int totitem = 0, i = 0;
-	
+
 	NODE_TREE_TYPES_BEGIN (nt)
 	{
 		if (poll && !poll(data, nt)) {
@@ -261,9 +268,14 @@ EnumPropertyItem *rna_node_tree_type_itemf(void *data, int (*poll)(void *data, b
 	}
 	NODE_TREE_TYPES_END;
 
+	if (totitem == 0) {
+		*r_free = false;
+		return DummyRNA_NULL_items;
+	}
+
 	RNA_enum_item_end(&item, &totitem);
 	*r_free = true;
-	
+
 	return item;
 }
 
@@ -310,9 +322,9 @@ bNodeType *rna_node_type_from_enum(int value)
 EnumPropertyItem *rna_node_type_itemf(void *data, int (*poll)(void *data, bNodeType *), bool *r_free)
 {
 	EnumPropertyItem *item = NULL;
-	EnumPropertyItem tmp = {0, "", 0, "", ""};
+	EnumPropertyItem tmp = {0};
 	int totitem = 0, i = 0;
-	
+
 	NODE_TYPES_BEGIN(ntype)
 		if (poll && !poll(data, ntype)) {
 			++i;
@@ -329,9 +341,15 @@ EnumPropertyItem *rna_node_type_itemf(void *data, int (*poll)(void *data, bNodeT
 		
 		++i;
 	NODE_TYPES_END
+
+	if (totitem == 0) {
+		*r_free = false;
+		return DummyRNA_NULL_items;
+	}
+
 	RNA_enum_item_end(&item, &totitem);
 	*r_free = true;
-	
+
 	return item;
 }
 
@@ -378,10 +396,10 @@ bNodeSocketType *rna_node_socket_type_from_enum(int value)
 EnumPropertyItem *rna_node_socket_type_itemf(void *data, int (*poll)(void *data, bNodeSocketType *), bool *r_free)
 {
 	EnumPropertyItem *item = NULL;
-	EnumPropertyItem tmp = {0, "", 0, "", ""};
+	EnumPropertyItem tmp = {0};
 	int totitem = 0, i = 0;
 	StructRNA *srna;
-	
+
 	NODE_SOCKET_TYPES_BEGIN(stype)
 		if (poll && !poll(data, stype)) {
 			++i;
@@ -399,9 +417,15 @@ EnumPropertyItem *rna_node_socket_type_itemf(void *data, int (*poll)(void *data,
 		
 		++i;
 	NODE_SOCKET_TYPES_END
+
+	if (totitem == 0) {
+		*r_free = false;
+		return DummyRNA_NULL_items;
+	}
+
 	RNA_enum_item_end(&item, &totitem);
 	*r_free = true;
-	
+
 	return item;
 }
 
@@ -410,25 +434,25 @@ static EnumPropertyItem *rna_node_static_type_itemf(bContext *UNUSED(C), Pointer
 	EnumPropertyItem *item = NULL;
 	EnumPropertyItem tmp;
 	int totitem = 0;
-	
+
 	/* hack, don't want to add include path to RNA just for this, since in the future RNA types
 	 * for nodes should be defined locally at runtime anyway ...
 	 */
-	
+
 	tmp.value = NODE_CUSTOM;
 	tmp.identifier = "CUSTOM";
 	tmp.name = "Custom";
 	tmp.description = "Custom Node";
 	tmp.icon = ICON_NONE;
 	RNA_enum_item_add(&item, &totitem, &tmp);
-	
+
 	tmp.value = NODE_UNDEFINED;
 	tmp.identifier = "UNDEFINED";
 	tmp.name = "UNDEFINED";
 	tmp.description = "";
 	tmp.icon = ICON_NONE;
 	RNA_enum_item_add(&item, &totitem, &tmp);
-	
+
 #define DefNode(Category, ID, DefFunc, EnumName, StructName, UIName, UIDesc) \
 	if (STREQ(#Category, "Node")) { \
 		tmp.value = ID; \
@@ -440,7 +464,7 @@ static EnumPropertyItem *rna_node_static_type_itemf(bContext *UNUSED(C), Pointer
 	}
 #include "../../nodes/NOD_static_types.h"
 #undef DefNode
-	
+
 	if (RNA_struct_is_a(ptr->type, &RNA_ShaderNode)) {
 #define DefNode(Category, ID, DefFunc, EnumName, StructName, UIName, UIDesc) \
 		if (STREQ(#Category, "ShaderNode")) { \
@@ -468,7 +492,7 @@ static EnumPropertyItem *rna_node_static_type_itemf(bContext *UNUSED(C), Pointer
 #include "../../nodes/NOD_static_types.h"
 #undef DefNode
 	}
-	
+
 	if (RNA_struct_is_a(ptr->type, &RNA_TextureNode)) {
 #define DefNode(Category, ID, DefFunc, EnumName, StructName, UIName, UIDesc) \
 		if (STREQ(#Category, "TextureNode")) { \
@@ -485,7 +509,7 @@ static EnumPropertyItem *rna_node_static_type_itemf(bContext *UNUSED(C), Pointer
 
 	RNA_enum_item_end(&item, &totitem);
 	*r_free = true;
-	
+
 	return item;
 }
 
@@ -578,11 +602,10 @@ static void rna_NodeTree_unregister(Main *UNUSED(bmain), StructRNA *type)
 		return;
 
 	RNA_struct_free_extension(type, &nt->ext);
+	RNA_struct_free(&BLENDER_RNA, type);
 
 	ntreeTypeFreeLink(nt);
 
-	RNA_struct_free(&BLENDER_RNA, type);
-
 	/* update while blender is running */
 	WM_main_add_notifier(NC_NODE | NA_EDITED, NULL);
 }
@@ -614,9 +637,10 @@ static StructRNA *rna_NodeTree_register(
 
 	/* check if we have registered this tree type before, and remove it */
 	nt = ntreeTypeFind(dummynt.idname);
-	if (nt)
+	if (nt) {
 		rna_NodeTree_unregister(bmain, nt->ext.srna);
-	
+	}
+
 	/* create a new node tree type */
 	nt = MEM_callocN(sizeof(bNodeTreeType), "node tree type");
 	memcpy(nt, &dummynt, sizeof(dummynt));
@@ -1331,11 +1355,11 @@ static void rna_Node_unregister(Main *UNUSED(bmain), StructRNA *type)
 		return;
 
 	RNA_struct_free_extension(type, &nt->ext);
+	RNA_struct_free(&BLENDER_RNA, type);
 
 	/* this also frees the allocated nt pointer, no MEM_free call needed! */
 	nodeUnregisterType(nt);
 
-	RNA_struct_free(&BLENDER_RNA, type);
 
 	/* update while blender is running */
 	WM_main_add_notifier(NC_NODE | NA_EDITED, NULL);
@@ -1376,8 +1400,9 @@ static bNodeType *rna_Node_register_base(Main *bmain, ReportList *reports, Struc
 
 	/* check if we have registered this node type before, and remove it */
 	nt = nodeTypeFind(dummynt.idname);
-	if (nt)
+	if (nt) {
 		rna_Node_unregister(bmain, nt->ext.srna);
+	}
 	
 	/* create a new node type */
 	nt = MEM_callocN(sizeof(bNodeType), "node type");
@@ -1793,10 +1818,10 @@ static void rna_NodeSocket_unregister(Main *UNUSED(bmain), StructRNA *type)
 		return;
 	
 	RNA_struct_free_extension(type, &st->ext_socket);
+	RNA_struct_free(&BLENDER_RNA, type);
 
 	nodeUnregisterSocketType(st);
 
-	RNA_struct_free(&BLENDER_RNA, type);
 
 	/* update while blender is running */
 	WM_main_add_notifier(NC_NODE | NA_EDITED, NULL);
@@ -2617,9 +2642,9 @@ static void rna_Node_image_layer_update(Main *bmain, Scene *scene, PointerRNA *p
 static EnumPropertyItem *renderresult_layers_add_enum(RenderLayer *rl)
 {
 	EnumPropertyItem *item = NULL;
-	EnumPropertyItem tmp = {0, "", 0, "", ""};
+	EnumPropertyItem tmp = {0};
 	int i = 0, totitem = 0;
-	
+
 	while (rl) {
 		tmp.identifier = rl->name;
 		/* little trick: using space char instead empty string makes the item selectable in the dropdown */
@@ -2631,7 +2656,7 @@ static EnumPropertyItem *renderresult_layers_add_enum(RenderLayer *rl)
 		RNA_enum_item_add(&item, &totitem, &tmp);
 		rl = rl->next;
 	}
-	
+
 	RNA_enum_item_end(&item, &totitem);
 
 	return item;
@@ -2644,18 +2669,17 @@ static EnumPropertyItem *rna_Node_image_layer_itemf(bContext *UNUSED(C), Pointer
 	Image *ima = (Image *)node->id;
 	EnumPropertyItem *item = NULL;
 	RenderLayer *rl;
-	
-	if (ima && ima->rr) {
-		rl = ima->rr->layers.first;
-		item = renderresult_layers_add_enum(rl);
-	}
-	else {
-		int totitem = 0;
-		RNA_enum_item_end(&item, &totitem);
+
+	if (ima == NULL || ima->rr == NULL) {
+		*r_free = false;
+		return DummyRNA_NULL_items;
 	}
-	
+
+	rl = ima->rr->layers.first;
+	item = renderresult_layers_add_enum(rl);
+
 	*r_free = true;
-	
+
 	return item;
 }
 
@@ -2706,19 +2730,22 @@ static EnumPropertyItem *renderresult_views_add_enum(RenderView *rv)
 }
 
 static EnumPropertyItem *rna_Node_image_view_itemf(bContext *UNUSED(C), PointerRNA *ptr,
-                                                   PropertyRNA *UNUSED(prop), bool *free)
+                                                   PropertyRNA *UNUSED(prop), bool *r_free)
 {
 	bNode *node = (bNode *)ptr->data;
 	Image *ima = (Image *)node->id;
 	EnumPropertyItem *item = NULL;
 	RenderView *rv;
 
-	if (!ima || !(ima->rr)) return NULL;
+	if (ima == NULL || ima->rr == NULL) {
+		*r_free = false;
+		return DummyRNA_NULL_items;
+	}
 
 	rv = ima->rr->views.first;
 	item = renderresult_views_add_enum(rv);
 
-	*free = true;
+	*r_free = true;
 
 	return item;
 }
@@ -2730,18 +2757,17 @@ static EnumPropertyItem *rna_Node_scene_layer_itemf(bContext *UNUSED(C), Pointer
 	Scene *sce = (Scene *)node->id;
 	EnumPropertyItem *item = NULL;
 	RenderLayer *rl;
-	
-	if (sce) {
-		rl = sce->r.layers.first;
-		item = renderresult_layers_add_enum(rl);
-	}
-	else {
-		int totitem = 0;
-		RNA_enum_item_end(&item, &totitem);
+
+	if (sce == NULL) {
+		*r_free = false;
+		return DummyRNA_NULL_items;
 	}
-	
+
+	rl = sce->r.layers.first;
+	item = renderresult_layers_add_enum(rl);
+
 	*r_free = true;
-	
+
 	return item;
 }
 
@@ -2758,7 +2784,7 @@ static EnumPropertyItem *rna_Node_channel_itemf(bContext *UNUSED(C), PointerRNA
 {
 	bNode *node = (bNode *)ptr->data;
 	EnumPropertyItem *item = NULL;
-	EnumPropertyItem tmp = {0, "", 0, "", ""};
+	EnumPropertyItem tmp = {0};
 	int totitem = 0;
 	
 	switch (node->custom1) {
@@ -2795,7 +2821,7 @@ static EnumPropertyItem *rna_Node_channel_itemf(bContext *UNUSED(C), PointerRNA
 			RNA_enum_item_add(&item, &totitem, &tmp);
 			break;
 		default:
-			break;
+			return DummyRNA_NULL_items;
 	}
 
 	RNA_enum_item_end(&item, &totitem);
@@ -3339,7 +3365,7 @@ static void def_frame(StructRNA *srna)
 	prop = RNA_def_property(srna, "text", PROP_POINTER, PROP_NONE);
 	RNA_def_property_pointer_sdna(prop, NULL, "id");
 	RNA_def_property_struct_type(prop, "Text");
-	RNA_def_property_flag(prop, PROP_EDITABLE);
+	RNA_def_property_flag(prop, PROP_EDITABLE | PROP_ID_REFCOUNT);
 	RNA_def_property_ui_text(prop, "Text", "");
 	RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_Node_update");
 
@@ -3609,7 +3635,7 @@ static void def_sh_lamp(StructRNA *srna)
 	prop = RNA_def_property(srna, "lamp_object", PROP_POINTER, PROP_NONE);
 	RNA_def_property_pointer_sdna(prop, NULL, "id");
 	RNA_def_property_struct_type(prop, "Object");
-	RNA_def_property_flag(prop, PROP_EDITABLE);
+	RNA_def_property_flag(prop, PROP_EDITABLE | PROP_ID_REFCOUNT);
 	RNA_def_property_pointer_funcs(prop, NULL, NULL, NULL, "rna_Lamp_object_poll");
 	RNA_def_property_ui_text(prop, "Lamp Object", "");
 	RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_Node_update");
@@ -3983,7 +4009,7 @@ static void def_sh_tex_coord(StructRNA *srna)
 	prop = RNA_def_property(srna, "object", PROP_POINTER, PROP_NONE);
 	RNA_def_property_pointer_sdna(prop, NULL, "id");
 	RNA_def_property_struct_type(prop, "Object");
-	RNA_def_property_flag(prop, PROP_EDITABLE);
+	RNA_def_property_flag(prop, PROP_EDITABLE | PROP_ID_REFCOUNT);
 	RNA_def_property_ui_text(prop, "Object", "Use coordinates from this object (for object texture coordinates output)");
 	RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_Node_update");
 
@@ -4099,7 +4125,7 @@ static void def_sh_tex_pointdensity(StructRNA *srna)
 	prop = RNA_def_property(srna, "object", PROP_POINTER, PROP_NONE);
 	RNA_def_property_pointer_sdna(prop, NULL, "id");
 	RNA_def_property_struct_type(prop, "Object");
-	RNA_def_property_flag(prop, PROP_EDITABLE);
+	RNA_def_property_flag(prop, PROP_EDITABLE | PROP_ID_REFCOUNT);
 	RNA_def_property_ui_text(prop, "Object", "Object to take point data from");
 	RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_Node_update");
 
@@ -4796,7 +4822,7 @@ static void def_cmp_render_layers(StructRNA *srna)
 	RNA_def_property_pointer_sdna(prop, NULL, "id");
 	RNA_def_property_pointer_funcs(prop, NULL, "rna_Node_scene_set", NULL, NULL);
 	RNA_def_property_struct_type(prop, "Scene");
-	RNA_def_property_flag(prop, PROP_EDITABLE);
+	RNA_def_property_flag(prop, PROP_EDITABLE | PROP_ID_REFCOUNT);
 	RNA_def_property_ui_text(prop, "Scene", "");
 	RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_Node_scene_layer_update");
 	
@@ -5453,7 +5479,7 @@ static void def_cmp_defocus(StructRNA *srna)
 	RNA_def_property_pointer_sdna(prop, NULL, "id");
 	RNA_def_property_pointer_funcs(prop, NULL, "rna_Node_scene_set", NULL, NULL);
 	RNA_def_property_struct_type(prop, "Scene");
-	RNA_def_property_flag(prop, PROP_EDITABLE);
+	RNA_def_property_flag(prop, PROP_EDITABLE | PROP_ID_REFCOUNT);
 	RNA_def_property_ui_text(prop, "Scene", "Scene from which to select the active camera (render scene if undefined)");
 	RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_Node_update");
 
@@ -6968,6 +6994,13 @@ static void rna_def_node_socket(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Type", "Data type");
 	RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_NodeSocket_update");
 
+	prop = RNA_def_property(srna, "draw_shape", PROP_ENUM, PROP_NONE);
+	RNA_def_property_enum_sdna(prop, NULL, "draw_shape");
+	RNA_def_property_enum_items(prop, rna_enum_node_socket_draw_shape_items);
+	RNA_def_property_enum_default(prop, SOCK_DRAW_SHAPE_CIRCLE);
+	RNA_def_property_ui_text(prop, "Shape", "Socket shape");
+	RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_NodeSocket_update");
+
 	/* registration */
 	prop = RNA_def_property(srna, "bl_idname", PROP_STRING, PROP_NONE);
 	RNA_def_property_string_sdna(prop, NULL, "typeinfo->idname");
diff --git a/source/blender/makesrna/intern/rna_object.c b/source/blender/makesrna/intern/rna_object.c
index a167ab03ba1..1f018a6ddfc 100644
--- a/source/blender/makesrna/intern/rna_object.c
+++ b/source/blender/makesrna/intern/rna_object.c
@@ -2392,7 +2392,7 @@ static void rna_def_object(BlenderRNA *brna)
 	/* only for the transform-panel and conflicts with animating scale */
 	RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
 	RNA_def_property_float_funcs(prop, "rna_Object_dimensions_get", "rna_Object_dimensions_set", NULL);
-	RNA_def_property_ui_range(prop, 0.0f, FLT_MAX, 1, 3);
+	RNA_def_property_ui_range(prop, 0.0f, FLT_MAX, 1, RNA_TRANSLATION_PREC_DEFAULT);
 	RNA_def_property_ui_text(prop, "Dimensions", "Absolute bounding box dimensions of the object");
 	RNA_def_property_update(prop, NC_OBJECT | ND_TRANSFORM, "rna_Object_internal_update");
 	
diff --git a/source/blender/makesrna/intern/rna_render.c b/source/blender/makesrna/intern/rna_render.c
index 44dcb72264a..034782cc818 100644
--- a/source/blender/makesrna/intern/rna_render.c
+++ b/source/blender/makesrna/intern/rna_render.c
@@ -33,6 +33,8 @@
 #include "BLI_utildefines.h"
 #include "BLI_path_util.h"
 
+#include "BKE_scene.h"
+
 #include "RNA_define.h"
 #include "RNA_enum_types.h"
 
@@ -41,6 +43,7 @@
 #include "RE_engine.h"
 #include "RE_pipeline.h"
 
+#include "ED_render.h"
 
 /* Deprecated, only provided for API compatibility. */
 EnumPropertyItem rna_enum_render_pass_type_items[] = {
@@ -123,6 +126,11 @@ static int engine_support_display_space_shader(RenderEngine *UNUSED(engine), Sce
 	return IMB_colormanagement_support_glsl_draw(&scene->view_settings);
 }
 
+static int engine_get_preview_pixel_size(RenderEngine *UNUSED(engine), Scene *scene)
+{
+	return BKE_render_preview_pixel_size(&scene->r);
+}
+
 static void engine_bind_display_space_shader(RenderEngine *UNUSED(engine), Scene *scene)
 {
 	IMB_colormanagement_setup_glsl_draw(&scene->view_settings,
@@ -271,7 +279,7 @@ static void engine_update_render_passes(RenderEngine *engine, struct Scene *scen
 
 /* RenderEngine registration */
 
-static void rna_RenderEngine_unregister(Main *UNUSED(bmain), StructRNA *type)
+static void rna_RenderEngine_unregister(Main *bmain, StructRNA *type)
 {
 	RenderEngineType *et = RNA_struct_blender_type_get(type);
 
@@ -279,12 +287,16 @@ static void rna_RenderEngine_unregister(Main *UNUSED(bmain), StructRNA *type)
 		return;
 	
 	RNA_struct_free_extension(type, &et->ext);
-	BLI_freelinkN(&R_engines, et);
 	RNA_struct_free(&BLENDER_RNA, type);
+	BLI_freelinkN(&R_engines, et);
+
+	/* Stop all renders in case we were using this one. */
+	ED_render_engine_changed(bmain);
 }
 
-static StructRNA *rna_RenderEngine_register(Main *bmain, ReportList *reports, void *data, const char *identifier,
-                                            StructValidateFunc validate, StructCallbackFunc call, StructFreeFunc free)
+static StructRNA *rna_RenderEngine_register(
+        Main *bmain, ReportList *reports, void *data, const char *identifier,
+        StructValidateFunc validate, StructCallbackFunc call, StructFreeFunc free)
 {
 	RenderEngineType *et, dummyet = {NULL};
 	RenderEngine dummyengine = {NULL};
@@ -647,6 +659,13 @@ static void rna_def_render_engine(BlenderRNA *brna)
 	parm = RNA_def_boolean(func, "supported", 0, "Supported", "");
 	RNA_def_function_return(func, parm);
 
+	func = RNA_def_function(srna, "get_preview_pixel_size", "engine_get_preview_pixel_size");
+	RNA_def_function_ui_description(func, "Get the pixel size that should be used for preview rendering");
+	parm = RNA_def_pointer(func, "scene", "Scene", "", "");
+	RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
+	parm = RNA_def_int(func, "pixel_size", 0, 1, 8, "Pixel Size", "", 1, 8);
+	RNA_def_function_return(func, parm);
+
 	RNA_define_verify_sdna(0);
 
 	prop = RNA_def_property(srna, "is_animation", PROP_BOOLEAN, PROP_NONE);
diff --git a/source/blender/makesrna/intern/rna_rna.c b/source/blender/makesrna/intern/rna_rna.c
index abded187b33..502a9c42363 100644
--- a/source/blender/makesrna/intern/rna_rna.c
+++ b/source/blender/makesrna/intern/rna_rna.c
@@ -610,6 +610,22 @@ static int rna_Property_array_length_get(PointerRNA *ptr)
 	return prop->totarraylength;
 }
 
+static void rna_Property_array_dimensions_get(PointerRNA *ptr, int dimensions[RNA_MAX_ARRAY_DIMENSION])
+{
+	PropertyRNA *prop = (PropertyRNA *)ptr->data;
+	rna_idproperty_check(&prop, ptr);
+
+	if (prop->arraydimension > 1) {
+		for (int i = RNA_MAX_ARRAY_DIMENSION; i--; ) {
+			dimensions[i] = (i >= prop->arraydimension) ? 0 : prop->arraylength[i];
+		}
+	}
+	else {
+		memset(dimensions, 0, sizeof(*dimensions) * RNA_MAX_ARRAY_DIMENSION);
+		dimensions[0] = prop->totarraylength;
+	}
+}
+
 static int rna_Property_is_registered_get(PointerRNA *ptr)
 {
 	PropertyRNA *prop = (PropertyRNA *)ptr->data;
@@ -983,21 +999,32 @@ static int rna_Function_use_self_type_get(PointerRNA *ptr)
 
 /* Blender RNA */
 
+static int rna_struct_is_publc(CollectionPropertyIterator *UNUSED(iter), void *data)
+{
+	StructRNA *srna = data;
+
+	return !(srna->flag & STRUCT_PUBLIC_NAMESPACE);
+}
+
+
 static void rna_BlenderRNA_structs_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
 {
-	rna_iterator_listbase_begin(iter, &((BlenderRNA *)ptr->data)->structs, NULL);
+	BlenderRNA *brna = ptr->data;
+	rna_iterator_listbase_begin(iter, &brna->structs, rna_struct_is_publc);
 }
 
 /* optional, for faster lookups */
 static int rna_BlenderRNA_structs_length(PointerRNA *ptr)
 {
-	return BLI_listbase_count(&((BlenderRNA *)ptr->data)->structs);
+	BlenderRNA *brna = ptr->data;
+	BLI_assert(brna->structs_len == BLI_listbase_count(&brna->structs));
+	return brna->structs_len;
 }
 static int rna_BlenderRNA_structs_lookup_int(PointerRNA *ptr, int index, PointerRNA *r_ptr)
 {
-	StructRNA *srna = BLI_findlink(&((BlenderRNA *)ptr->data)->structs, index);
-
-	if (srna) {
+	BlenderRNA *brna = ptr->data;
+	StructRNA *srna = index < brna->structs_len ? BLI_findlink(&brna->structs, index) : NULL;
+	if (srna != NULL) {
 		RNA_pointer_create(NULL, &RNA_Struct, srna, r_ptr);
 		return true;
 	}
@@ -1007,12 +1034,11 @@ static int rna_BlenderRNA_structs_lookup_int(PointerRNA *ptr, int index, Pointer
 }
 static int rna_BlenderRNA_structs_lookup_string(PointerRNA *ptr, const char *key, PointerRNA *r_ptr)
 {
-	StructRNA *srna = ((BlenderRNA *)ptr->data)->structs.first;
-	for (; srna; srna = srna->cont.next) {
-		if (key[0] == srna->identifier[0] && STREQ(key, srna->identifier)) {
-			RNA_pointer_create(NULL, &RNA_Struct, srna, r_ptr);
-			return true;
-		}
+	BlenderRNA *brna = ptr->data;
+	StructRNA *srna = BLI_ghash_lookup(brna->structs_map, (void *)key);
+	if (srna != NULL) {
+		RNA_pointer_create(NULL, &RNA_Struct, srna, r_ptr);
+		return true;
 	}
 
 	return false;
@@ -1344,6 +1370,12 @@ static void rna_def_number_property(StructRNA *srna, PropertyType type)
 	RNA_def_property_int_funcs(prop, "rna_Property_array_length_get", NULL, NULL);
 	RNA_def_property_ui_text(prop, "Array Length", "Maximum length of the array, 0 means unlimited");
 
+	prop = RNA_def_property(srna, "array_dimensions", PROP_INT, PROP_UNSIGNED);
+	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
+	RNA_def_property_array(prop, RNA_MAX_ARRAY_DIMENSION);
+	RNA_def_property_int_funcs(prop, "rna_Property_array_dimensions_get", NULL, NULL);
+	RNA_def_property_ui_text(prop, "Array Dimensions", "Length of each dimension of the array");
+
 	prop = RNA_def_property(srna, "is_array", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
 	RNA_def_property_boolean_funcs(prop, "rna_NumberProperty_is_array_get", NULL);
diff --git a/source/blender/makesrna/intern/rna_scene.c b/source/blender/makesrna/intern/rna_scene.c
index b9231574a24..cd0bcaf4cea 100644
--- a/source/blender/makesrna/intern/rna_scene.c
+++ b/source/blender/makesrna/intern/rna_scene.c
@@ -58,11 +58,6 @@
 #include "RE_engine.h"
 #include "RE_pipeline.h"
 
-#ifdef WITH_QUICKTIME
-#  include "quicktime_export.h"
-#  include AUD_TYPES_H
-#endif
-
 #ifdef WITH_FFMPEG
 #  include "BKE_writeffmpeg.h"
 #  include <libavcodec/avcodec.h>
@@ -94,13 +89,15 @@ EnumPropertyItem rna_enum_exr_codec_items[] = {
 };
 #endif
 
-EnumPropertyItem uv_sculpt_relaxation_items[] = {
+#ifndef RNA_RUNTIME
+static EnumPropertyItem uv_sculpt_relaxation_items[] = {
 	{UV_SCULPT_TOOL_RELAX_LAPLACIAN, "LAPLACIAN", 0, "Laplacian", "Use Laplacian method for relaxation"},
 	{UV_SCULPT_TOOL_RELAX_HC, "HC", 0, "HC", "Use HC method for relaxation"},
 	{0, NULL, 0, NULL, NULL}
 };
+#endif
 
-EnumPropertyItem uv_sculpt_tool_items[] = {
+EnumPropertyItem rna_enum_uv_sculpt_tool_items[] = {
 	{UV_SCULPT_TOOL_PINCH, "PINCH", 0, "Pinch", "Pinch UVs"},
 	{UV_SCULPT_TOOL_RELAX, "RELAX", 0, "Relax", "Relax UVs"},
 	{UV_SCULPT_TOOL_GRAB, "GRAB", 0, "Grab", "Grab UVs"},
@@ -175,11 +172,13 @@ EnumPropertyItem rna_enum_snap_node_element_items[] = {
 	{0, NULL, 0, NULL, NULL}
 };
 
-EnumPropertyItem snap_uv_element_items[] = {
+#ifndef RNA_RUNTIME
+static EnumPropertyItem snap_uv_element_items[] = {
 	{SCE_SNAP_MODE_INCREMENT, "INCREMENT", ICON_SNAP_INCREMENT, "Increment", "Snap to increments of grid"},
 	{SCE_SNAP_MODE_VERTEX, "VERTEX", ICON_SNAP_VERTEX, "Vertex", "Snap to vertices"},
 	{0, NULL, 0, NULL, NULL}
 };
+#endif
 
 EnumPropertyItem rna_enum_curve_fit_method_items[] = {
 	{CURVE_PAINT_FIT_METHOD_REFIT, "REFIT", 0, "Refit", "Incrementally re-fit the curve (high quality)"},
@@ -265,12 +264,14 @@ EnumPropertyItem rna_enum_curve_fit_method_items[] = {
 	R_IMF_ENUM_TIFF                                                           \
 
 
-EnumPropertyItem image_only_type_items[] = {
+#ifdef RNA_RUNTIME
+static EnumPropertyItem image_only_type_items[] = {
 
 	IMAGE_TYPE_ITEMS_IMAGE_ONLY
 
 	{0, NULL, 0, NULL, NULL}
 };
+#endif
 
 EnumPropertyItem rna_enum_image_type_items[] = {
 	{0, "", 0, N_("Image"), NULL},
@@ -286,9 +287,6 @@ EnumPropertyItem rna_enum_image_type_items[] = {
 #ifdef WITH_FFMPEG
 	{R_IMF_IMTYPE_FFMPEG, "FFMPEG", ICON_FILE_MOVIE, "FFmpeg video", "The most versatile way to output video files"},
 #endif
-#ifdef WITH_QUICKTIME
-	{R_IMF_IMTYPE_QUICKTIME, "QUICKTIME", ICON_FILE_MOVIE, "QuickTime", "Output video in Quicktime format"},
-#endif
 	{0, NULL, 0, NULL, NULL}
 };
 
@@ -408,7 +406,8 @@ EnumPropertyItem rna_enum_bake_pass_filter_type_items[] = {
 	{0, NULL, 0, NULL, NULL}
 };
 
-EnumPropertyItem rna_enum_gpencil_interpolation_mode_items[] = {
+#ifndef RNA_RUNTIME
+static EnumPropertyItem rna_enum_gpencil_interpolation_mode_items[] = {
 	/* interpolation */
 	{0, "", 0, N_("Interpolation"), "Standard transitions between keyframes"},
 	{GP_IPO_LINEAR,   "LINEAR", ICON_IPO_LINEAR, "Linear", "Straight-line interpolation between A and B (i.e. no ease in/out)"},
@@ -431,6 +430,7 @@ EnumPropertyItem rna_enum_gpencil_interpolation_mode_items[] = {
 	
 	{0, NULL, 0, NULL, NULL}
 };
+#endif
 
 #ifdef RNA_RUNTIME
 
@@ -1118,9 +1118,6 @@ static void rna_ImageFormatSettings_file_format_set(PointerRNA *ptr, int value)
 #ifdef WITH_FFMPEG
 		BKE_ffmpeg_image_type_verify(rd, imf);
 #endif
-#ifdef WITH_QUICKTIME
-		quicktime_verify_image_type(rd, imf);
-#endif
 		(void)rd;
 	}
 }
@@ -1309,84 +1306,6 @@ static void rna_SceneRender_file_ext_get(PointerRNA *ptr, char *str)
 	BKE_image_path_ensure_ext_from_imformat(str, &rd->im_format);
 }
 
-#ifdef WITH_QUICKTIME
-static int rna_RenderSettings_qtcodecsettings_codecType_get(PointerRNA *ptr)
-{
-	QuicktimeCodecSettings *settings = (QuicktimeCodecSettings *)ptr->data;
-	
-	return quicktime_rnatmpvalue_from_videocodectype(settings->codecType);
-}
-
-static void rna_RenderSettings_qtcodecsettings_codecType_set(PointerRNA *ptr, int value)
-{
-	QuicktimeCodecSettings *settings = (QuicktimeCodecSettings *)ptr->data;
-
-	settings->codecType = quicktime_videocodecType_from_rnatmpvalue(value);
-}
-
-static EnumPropertyItem *rna_RenderSettings_qtcodecsettings_codecType_itemf(
-        bContext *UNUSED(C), PointerRNA *UNUSED(ptr), PropertyRNA *UNUSED(prop), bool *r_free)
-{
-	EnumPropertyItem *item = NULL;
-	EnumPropertyItem tmp = {0, "", 0, "", ""};
-	QuicktimeCodecTypeDesc *codecTypeDesc;
-	int i = 1, totitem = 0;
-
-	for (i = 0; i < quicktime_get_num_videocodecs(); i++) {
-		codecTypeDesc = quicktime_get_videocodecType_desc(i);
-		if (!codecTypeDesc) break;
-
-		tmp.value = codecTypeDesc->rnatmpvalue;
-		tmp.identifier = codecTypeDesc->codecName;
-		tmp.name = codecTypeDesc->codecName;
-		RNA_enum_item_add(&item, &totitem, &tmp);
-	}
-	
-	RNA_enum_item_end(&item, &totitem);
-	*r_free = true;
-	
-	return item;
-}
-
-static int rna_RenderSettings_qtcodecsettings_audiocodecType_get(PointerRNA *ptr)
-{
-	QuicktimeCodecSettings *settings = (QuicktimeCodecSettings *)ptr->data;
-	
-	return quicktime_rnatmpvalue_from_audiocodectype(settings->audiocodecType);
-}
-
-static void rna_RenderSettings_qtcodecsettings_audiocodecType_set(PointerRNA *ptr, int value)
-{
-	QuicktimeCodecSettings *settings = (QuicktimeCodecSettings *)ptr->data;
-	
-	settings->audiocodecType = quicktime_audiocodecType_from_rnatmpvalue(value);
-}
-
-static EnumPropertyItem *rna_RenderSettings_qtcodecsettings_audiocodecType_itemf(
-        bContext *UNUSED(C), PointerRNA *UNUSED(ptr), PropertyRNA *UNUSED(prop), bool *r_free)
-{
-	EnumPropertyItem *item = NULL;
-	EnumPropertyItem tmp = {0, "", 0, "", ""};
-	QuicktimeCodecTypeDesc *codecTypeDesc;
-	int i = 1, totitem = 0;
-	
-	for (i = 0; i < quicktime_get_num_audiocodecs(); i++) {
-		codecTypeDesc = quicktime_get_audiocodecType_desc(i);
-		if (!codecTypeDesc) break;
-		
-		tmp.value = codecTypeDesc->rnatmpvalue;
-		tmp.identifier = codecTypeDesc->codecName;
-		tmp.name = codecTypeDesc->codecName;
-		RNA_enum_item_add(&item, &totitem, &tmp);
-	}
-	
-	RNA_enum_item_end(&item, &totitem);
-	*r_free = true;
-	
-	return item;
-}
-#endif
-
 #ifdef WITH_FFMPEG
 static void rna_FFmpegSettings_lossless_output_set(PointerRNA *ptr, int value)
 {
@@ -1838,6 +1757,13 @@ static void rna_Scene_simplify_update(Main *bmain, Scene *UNUSED(scene), Pointer
 		rna_Scene_use_simplify_update(bmain, sce, ptr);
 }
 
+static void rna_SceneRenderData_update(Main *UNUSED(bmain), Scene *UNUSED(scene), PointerRNA *ptr)
+{
+	Scene *sce = ptr->id.data;
+
+	DAG_id_tag_update(&sce->id, 0);
+}
+
 static void rna_Scene_use_persistent_data_update(Main *UNUSED(bmain), Scene *UNUSED(scene), PointerRNA *ptr)
 {
 	Scene *sce = ptr->id.data;
@@ -2665,7 +2591,7 @@ static void rna_def_tool_settings(BlenderRNA  *brna)
 
 	prop = RNA_def_property(srna, "uv_sculpt_tool", PROP_ENUM, PROP_NONE);
 	RNA_def_property_enum_sdna(prop, NULL, "uv_sculpt_tool");
-	RNA_def_property_enum_items(prop, uv_sculpt_tool_items);
+	RNA_def_property_enum_items(prop, rna_enum_uv_sculpt_tool_items);
 	RNA_def_property_ui_text(prop, "UV Sculpt Tools", "Select Tools for the UV sculpt brushes");
 
 	prop = RNA_def_property(srna, "uv_relax_method", PROP_ENUM, PROP_NONE);
@@ -5723,106 +5649,6 @@ static void rna_def_scene_ffmpeg_settings(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Audio Channels", "Audio channel count");
 }
 
-#ifdef WITH_QUICKTIME
-static void rna_def_scene_quicktime_settings(BlenderRNA *brna)
-{
-	StructRNA *srna;
-	PropertyRNA *prop;
-
-	static EnumPropertyItem quicktime_codec_type_items[] = {
-		{0, "codec", 0, "codec", ""},
-		{0, NULL, 0, NULL, NULL}
-	};
-
-	static EnumPropertyItem quicktime_audio_samplerate_items[] = {
-		{22050, "22050", 0, "22kHz", ""},
-		{44100, "44100", 0, "44.1kHz", ""},
-		{48000, "48000", 0, "48kHz", ""},
-		{88200, "88200", 0, "88.2kHz", ""},
-		{96000, "96000", 0, "96kHz", ""},
-		{192000, "192000", 0, "192kHz", ""},
-		{0, NULL, 0, NULL, NULL}
-	};
-
-	static EnumPropertyItem quicktime_audio_bitdepth_items[] = {
-		{AUD_FORMAT_U8, "8BIT", 0, "8bit", ""},
-		{AUD_FORMAT_S16, "16BIT", 0, "16bit", ""},
-		{AUD_FORMAT_S24, "24BIT", 0, "24bit", ""},
-		{AUD_FORMAT_S32, "32BIT", 0, "32bit", ""},
-		{AUD_FORMAT_FLOAT32, "FLOAT32", 0, "float32", ""},
-		{AUD_FORMAT_FLOAT64, "FLOAT64", 0, "float64", ""},
-		{0, NULL, 0, NULL, NULL}
-	};
-
-	static EnumPropertyItem quicktime_audio_bitrate_items[] = {
-		{64000, "64000", 0, "64kbps", ""},
-		{112000, "112000", 0, "112kpbs", ""},
-		{128000, "128000", 0, "128kbps", ""},
-		{192000, "192000", 0, "192kbps", ""},
-		{256000, "256000", 0, "256kbps", ""},
-		{320000, "320000", 0, "320kbps", ""},
-		{0, NULL, 0, NULL, NULL}
-	};
-
-	/* QuickTime */
-	srna = RNA_def_struct(brna, "QuickTimeSettings", NULL);
-	RNA_def_struct_sdna(srna, "QuicktimeCodecSettings");
-	RNA_def_struct_ui_text(srna, "QuickTime Settings", "QuickTime related settings for the scene");
-
-	prop = RNA_def_property(srna, "codec_type", PROP_ENUM, PROP_NONE);
-	RNA_def_property_enum_bitflag_sdna(prop, NULL, "codecType");
-	RNA_def_property_enum_items(prop, quicktime_codec_type_items);
-	RNA_def_property_enum_funcs(prop, "rna_RenderSettings_qtcodecsettings_codecType_get",
-	                            "rna_RenderSettings_qtcodecsettings_codecType_set",
-	                            "rna_RenderSettings_qtcodecsettings_codecType_itemf");
-	RNA_def_property_ui_text(prop, "Codec", "QuickTime codec type");
-	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, NULL);
-
-	prop = RNA_def_property(srna, "codec_spatial_quality", PROP_INT, PROP_PERCENTAGE);
-	RNA_def_property_int_sdna(prop, NULL, "codecSpatialQuality");
-	RNA_def_property_range(prop, 0, 100);
-	RNA_def_property_ui_text(prop, "Spatial quality", "Intra-frame spatial quality level");
-	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, NULL);
-
-	prop = RNA_def_property(srna, "audiocodec_type", PROP_ENUM, PROP_NONE);
-	RNA_def_property_enum_bitflag_sdna(prop, NULL, "audiocodecType");
-	RNA_def_property_enum_items(prop, quicktime_codec_type_items);
-	RNA_def_property_enum_funcs(prop, "rna_RenderSettings_qtcodecsettings_audiocodecType_get",
-	                            "rna_RenderSettings_qtcodecsettings_audiocodecType_set",
-	                            "rna_RenderSettings_qtcodecsettings_audiocodecType_itemf");
-	RNA_def_property_ui_text(prop, "Audio Codec", "QuickTime audio codec type");
-	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, NULL);
-
-	prop = RNA_def_property(srna, "audio_samplerate", PROP_ENUM, PROP_NONE);
-	RNA_def_property_enum_bitflag_sdna(prop, NULL, "audioSampleRate");
-	RNA_def_property_enum_items(prop, quicktime_audio_samplerate_items);
-	RNA_def_property_ui_text(prop, "Smp Rate", "Sample Rate");
-	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, NULL);
-
-	prop = RNA_def_property(srna, "audio_bitdepth", PROP_ENUM, PROP_NONE);
-	RNA_def_property_enum_bitflag_sdna(prop, NULL, "audioBitDepth");
-	RNA_def_property_enum_items(prop, quicktime_audio_bitdepth_items);
-	RNA_def_property_ui_text(prop, "Bit Depth", "Bit Depth");
-	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, NULL);
-
-	prop = RNA_def_property(srna, "audio_resampling_hq", PROP_BOOLEAN, PROP_NONE);
-	RNA_def_property_boolean_negative_sdna(prop, NULL, "audioCodecFlags", QTAUDIO_FLAG_RESAMPLE_NOHQ);
-	RNA_def_property_ui_text(prop, "HQ", "Use High Quality resampling algorithm");
-	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, NULL);
-
-	prop = RNA_def_property(srna, "audio_codec_isvbr", PROP_BOOLEAN, PROP_NONE);
-	RNA_def_property_boolean_negative_sdna(prop, NULL, "audioCodecFlags", QTAUDIO_FLAG_CODEC_ISCBR);
-	RNA_def_property_ui_text(prop, "VBR", "Use Variable Bit Rate compression (improves quality at same bitrate)");
-	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, NULL);
-
-	prop = RNA_def_property(srna, "audio_bitrate", PROP_ENUM, PROP_NONE);
-	RNA_def_property_enum_bitflag_sdna(prop, NULL, "audioBitRate");
-	RNA_def_property_enum_items(prop, quicktime_audio_bitrate_items);
-	RNA_def_property_ui_text(prop, "Bitrate", "Compressed audio bitrate");
-	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, NULL);
-}
-#endif
-
 static void rna_def_scene_render_data(BlenderRNA *brna)
 {
 	StructRNA *srna;
@@ -5887,6 +5713,15 @@ static void rna_def_scene_render_data(BlenderRNA *brna)
 		{0, NULL, 0, NULL, NULL}
 	};
 	
+	static EnumPropertyItem pixel_size_items[] = {
+		{0, "AUTO", 0, "Automatic", "Automatic pixel size, depends on the UI scale"},
+		{1, "1", 0, "1x", "Render at full resolution"},
+		{2, "2", 0, "2x", "Render at 50% resolution"},
+		{4, "4", 0, "4x", "Render at 25% resolution"},
+		{8, "8", 0, "8x", "Render at 12.5% resolution"},
+		{0, NULL, 0, NULL, NULL}
+	};
+
 	static EnumPropertyItem octree_resolution_items[] = {
 		{64, "64", 0, "64", ""},
 		{128, "128", 0, "128", ""},
@@ -5947,9 +5782,6 @@ static void rna_def_scene_render_data(BlenderRNA *brna)
 
 
 	rna_def_scene_ffmpeg_settings(brna);
-#ifdef WITH_QUICKTIME
-	rna_def_scene_quicktime_settings(brna);
-#endif
 
 	srna = RNA_def_struct(brna, "RenderSettings", NULL);
 	RNA_def_struct_sdna(srna, "RenderData");
@@ -6010,6 +5842,12 @@ static void rna_def_scene_render_data(BlenderRNA *brna)
 	                                                   "progressively increasing it to the full viewport size");
 	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, NULL);
 
+	prop = RNA_def_property(srna, "preview_pixel_size", PROP_ENUM, PROP_NONE);
+	RNA_def_property_enum_sdna(prop, NULL, "preview_pixel_size");
+	RNA_def_property_enum_items(prop, pixel_size_items);
+	RNA_def_property_ui_text(prop, "Pixel Size", "Pixel size for viewport rendering");
+	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, "rna_SceneRenderData_update");
+
 	prop = RNA_def_property(srna, "pixel_aspect_x", PROP_FLOAT, PROP_NONE);
 	RNA_def_property_float_sdna(prop, NULL, "xasp");
 	RNA_def_property_flag(prop, PROP_PROPORTIONAL);
@@ -6028,14 +5866,6 @@ static void rna_def_scene_render_data(BlenderRNA *brna)
 	                         "Vertical aspect ratio - for anamorphic or non-square pixel output");
 	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, "rna_SceneCamera_update");
 
-#ifdef WITH_QUICKTIME
-	prop = RNA_def_property(srna, "quicktime", PROP_POINTER, PROP_NONE);
-	RNA_def_property_struct_type(prop, "QuickTimeSettings");
-	RNA_def_property_pointer_sdna(prop, NULL, "qtcodecsettings");
-	RNA_def_property_flag(prop, PROP_NEVER_UNLINK);
-	RNA_def_property_ui_text(prop, "QuickTime Settings", "QuickTime related settings for the scene");
-#endif
-
 	prop = RNA_def_property(srna, "ffmpeg", PROP_POINTER, PROP_NONE);
 	RNA_def_property_struct_type(prop, "FFmpegSettings");
 	RNA_def_property_pointer_sdna(prop, NULL, "ffcodecdata");
@@ -6242,8 +6072,8 @@ static void rna_def_scene_render_data(BlenderRNA *brna)
 	prop = RNA_def_property(srna, "motion_blur_shutter", PROP_FLOAT, PROP_UNSIGNED);
 	RNA_def_property_float_sdna(prop, NULL, "blurfac");
 	RNA_def_property_ui_range(prop, 0.01f, 2.0f, 1, 2);
-	RNA_def_property_ui_text(prop, "Shutter", "Time taken in frames between shutter open and close");
-	RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
+	RNA_def_property_ui_text(prop, "Shutter", "Time taken in frames between shutter open and close "
+	                                          "(NOTE: Blender Internal does not support animated shutter)");
 	RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, "rna_Scene_glsl_update");
 
 	prop = RNA_def_property(srna, "motion_blur_shutter_curve", PROP_POINTER, PROP_NONE);
@@ -6605,11 +6435,6 @@ static void rna_def_scene_render_data(BlenderRNA *brna)
 
 	/* sequencer draw options */
 
-	prop = RNA_def_property(srna, "use_sequencer_gl_preview", PROP_BOOLEAN, PROP_NONE);
-	RNA_def_property_boolean_sdna(prop, NULL, "seq_flag", R_SEQ_GL_PREV);
-	RNA_def_property_ui_text(prop, "Sequencer OpenGL", "");
-	RNA_def_property_update(prop, NC_SCENE | ND_SEQUENCER, "rna_SceneSequencer_update");
-
 #if 0  /* see R_SEQ_GL_REND comment */
 	prop = RNA_def_property(srna, "use_sequencer_gl_render", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "seq_flag", R_SEQ_GL_REND);
@@ -6622,10 +6447,13 @@ static void rna_def_scene_render_data(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Sequencer Preview Shading", "Method to draw in the sequencer view");
 	RNA_def_property_update(prop, NC_SCENE | ND_SEQUENCER, "rna_SceneSequencer_update");
 
+#if 0  /* UNUSED, see R_SEQ_GL_REND comment */
 	prop = RNA_def_property(srna, "sequencer_gl_render", PROP_ENUM, PROP_NONE);
 	RNA_def_property_enum_sdna(prop, NULL, "seq_rend_type");
 	RNA_def_property_enum_items(prop, rna_enum_viewport_shade_items);
+	/* XXX Label and tooltips are obviously wrong! */
 	RNA_def_property_ui_text(prop, "Sequencer Preview Shading", "Method to draw in the sequencer view");
+#endif
 
 	prop = RNA_def_property(srna, "use_sequencer_gl_textured_solid", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "seq_flag", R_SEQ_SOLID_TEX);
diff --git a/source/blender/makesrna/intern/rna_scene_api.c b/source/blender/makesrna/intern/rna_scene_api.c
index ea7327cfa31..16d91a4964b 100644
--- a/source/blender/makesrna/intern/rna_scene_api.c
+++ b/source/blender/makesrna/intern/rna_scene_api.c
@@ -279,7 +279,7 @@ static void rna_Scene_collada_export(
         int include_shapekeys,
         int deform_bones_only,
         int active_uv_only,
-		int export_texture_type,
+        int export_texture_type,
         int use_texture_copies,
         int triangulate,
         int use_object_instantiation,
diff --git a/source/blender/makesrna/intern/rna_sculpt_paint.c b/source/blender/makesrna/intern/rna_sculpt_paint.c
index 40aea37d9d2..09da34d59d8 100644
--- a/source/blender/makesrna/intern/rna_sculpt_paint.c
+++ b/source/blender/makesrna/intern/rna_sculpt_paint.c
@@ -28,6 +28,7 @@
 #include <stdlib.h>
 
 #include "RNA_define.h"
+#include "RNA_enum_types.h"
 
 #include "rna_internal.h"
 
@@ -75,13 +76,15 @@ EnumPropertyItem rna_enum_gpencil_sculpt_brush_items[] = {
 	{ 0, NULL, 0, NULL, NULL }
 };
 
-EnumPropertyItem rna_enum_gpencil_lockaxis_items[] = {
+#ifndef RNA_RUNTIME
+static EnumPropertyItem rna_enum_gpencil_lockaxis_items[] = {
 	{ GP_LOCKAXIS_NONE, "GP_LOCKAXIS_NONE", 0, "None", "" },
 	{ GP_LOCKAXIS_X, "GP_LOCKAXIS_X", 0, "X", "Project strokes to plane locked to X" },
 	{ GP_LOCKAXIS_Y, "GP_LOCKAXIS_Y", 0, "Y", "Project strokes to plane locked to Y" },
 	{ GP_LOCKAXIS_Z, "GP_LOCKAXIS_Z", 0, "Z", "Project strokes to plane locked to Z" },
 	{ 0, NULL, 0, NULL, NULL }
 };
+#endif
 
 EnumPropertyItem rna_enum_symmetrize_direction_items[] = {
 	{BMO_SYMMETRIZE_NEGATIVE_X, "NEGATIVE_X", 0, "-X to +X", ""},
@@ -684,6 +687,15 @@ static void rna_def_vertex_paint(BlenderRNA *brna)
 	RNA_def_property_boolean_sdna(prop, NULL, "flag", VP_ONLYVGROUP);
 	RNA_def_property_ui_text(prop, "Restrict", "Restrict painting to vertices in the group");
 	RNA_def_property_update(prop, NC_SCENE | ND_TOOLSETTINGS, NULL);
+
+	/* Mirroring */
+	prop = RNA_def_property(srna, "radial_symmetry", PROP_INT, PROP_XYZ);
+	RNA_def_property_int_sdna(prop, NULL, "radial_symm");
+	RNA_def_property_int_default(prop, 1);
+	RNA_def_property_range(prop, 1, 64);
+	RNA_def_property_ui_range(prop, 1, 32, 1, 1);
+	RNA_def_property_ui_text(prop, "Radial Symmetry Count X Axis",
+	                         "Number of times to copy strokes across the surface");
 }
 
 static void rna_def_image_paint(BlenderRNA *brna)
diff --git a/source/blender/makesrna/intern/rna_sequencer.c b/source/blender/makesrna/intern/rna_sequencer.c
index f628c5f14d9..520a1c2f730 100644
--- a/source/blender/makesrna/intern/rna_sequencer.c
+++ b/source/blender/makesrna/intern/rna_sequencer.c
@@ -725,8 +725,9 @@ static void rna_Sequence_filepath_update(Main *bmain, Scene *UNUSED(scene), Poin
 static void rna_Sequence_sound_update(Main *bmain, Scene *scene, PointerRNA *ptr)
 {
 	Sequence *seq = (Sequence *) ptr->data;
-
-	BKE_sound_update_scene_sound(seq->scene_sound, seq->sound);
+	if (seq->sound != NULL) {
+		BKE_sound_update_scene_sound(seq->scene_sound, seq->sound);
+	}
 	rna_Sequence_update(bmain, scene, ptr);
 }
 
diff --git a/source/blender/makesrna/intern/rna_space.c b/source/blender/makesrna/intern/rna_space.c
index f2e856bf1ba..ed28b0d399b 100644
--- a/source/blender/makesrna/intern/rna_space.c
+++ b/source/blender/makesrna/intern/rna_space.c
@@ -1045,6 +1045,8 @@ static void rna_SpaceProperties_pin_id_update(Main *UNUSED(bmain), Scene *UNUSED
 		case ID_LA:
 			WM_main_add_notifier(NC_LAMP, NULL);
 			break;
+		default:
+			break;
 	}
 }
 
@@ -2836,6 +2838,16 @@ static void rna_def_space_view3d(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Is Perspective", "");
 	RNA_def_property_flag(prop, PROP_EDITABLE);
 
+	/* This isn't directly accessible from the UI, only an operator. */
+	prop = RNA_def_property(srna, "use_clip_planes", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "rflag", RV3D_CLIPPING);
+	RNA_def_property_ui_text(prop, "Use Clip Planes", "");
+
+	prop = RNA_def_property(srna, "clip_planes", PROP_FLOAT, PROP_NONE);
+	RNA_def_property_float_sdna(prop, NULL, "clip");
+	RNA_def_property_multi_array(prop, 2, (int[]){6, 4});
+	RNA_def_property_ui_text(prop, "Clipe Planes", "");
+
 	prop = RNA_def_property(srna, "view_location", PROP_FLOAT, PROP_TRANSLATION);
 #if 0
 	RNA_def_property_float_sdna(prop, NULL, "ofs"); /* cant use because its negated */
@@ -4605,7 +4617,7 @@ static void rna_def_space_clip(BlenderRNA *brna)
 	/* path length */
 	prop = RNA_def_property(srna, "path_length", PROP_INT, PROP_NONE);
 	RNA_def_property_int_sdna(prop, NULL, "path_length");
-	RNA_def_property_range(prop, 0, 50);
+	RNA_def_property_range(prop, 0, INT_MAX);
 	RNA_def_property_ui_text(prop, "Path Length", "Length of displaying path, in frames");
 	RNA_def_property_update(prop, NC_SPACE | ND_SPACE_CLIP, NULL);
 
diff --git a/source/blender/makesrna/intern/rna_texture.c b/source/blender/makesrna/intern/rna_texture.c
index 1e88585a286..4ad2832b953 100644
--- a/source/blender/makesrna/intern/rna_texture.c
+++ b/source/blender/makesrna/intern/rna_texture.c
@@ -267,6 +267,8 @@ void rna_TextureSlot_update(Main *UNUSED(bmain), Scene *scene, PointerRNA *ptr)
 			WM_main_add_notifier(NC_OBJECT | ND_PARTICLE | NA_EDITED, NULL);
 			break;
 		}
+		default:
+			break;
 	}
 }
 
diff --git a/source/blender/makesrna/intern/rna_ui.c b/source/blender/makesrna/intern/rna_ui.c
index 54b82fc89d6..08038b0b1ff 100644
--- a/source/blender/makesrna/intern/rna_ui.c
+++ b/source/blender/makesrna/intern/rna_ui.c
@@ -177,16 +177,17 @@ static void rna_Panel_unregister(Main *UNUSED(bmain), StructRNA *type)
 		return;
 	
 	RNA_struct_free_extension(type, &pt->ext);
+	RNA_struct_free(&BLENDER_RNA, type);
 
 	BLI_freelinkN(&art->paneltypes, pt);
-	RNA_struct_free(&BLENDER_RNA, type);
 
 	/* update while blender is running */
 	WM_main_add_notifier(NC_WINDOW, NULL);
 }
 
-static StructRNA *rna_Panel_register(Main *bmain, ReportList *reports, void *data, const char *identifier,
-                                     StructValidateFunc validate, StructCallbackFunc call, StructFreeFunc free)
+static StructRNA *rna_Panel_register(
+        Main *bmain, ReportList *reports, void *data, const char *identifier,
+        StructValidateFunc validate, StructCallbackFunc call, StructFreeFunc free)
 {
 	ARegionType *art;
 	PanelType *pt, dummypt = {NULL};
@@ -229,6 +230,12 @@ static StructRNA *rna_Panel_register(Main *bmain, ReportList *reports, void *dat
 			break;
 		}
 	}
+	if (!RNA_struct_available_or_report(reports, dummypt.idname)) {
+		return NULL;
+	}
+	if (!RNA_struct_bl_idname_ok_or_report(reports, dummypt.idname, "_PT_")) {
+		return NULL;
+	}
 	
 	/* create a new panel type */
 	pt = MEM_callocN(sizeof(PanelType), "python buttons panel");
@@ -455,17 +462,17 @@ static void rna_UIList_unregister(Main *UNUSED(bmain), StructRNA *type)
 		return;
 
 	RNA_struct_free_extension(type, &ult->ext);
+	RNA_struct_free(&BLENDER_RNA, type);
 
 	WM_uilisttype_freelink(ult);
 
-	RNA_struct_free(&BLENDER_RNA, type);
-
 	/* update while blender is running */
 	WM_main_add_notifier(NC_WINDOW, NULL);
 }
 
-static StructRNA *rna_UIList_register(Main *bmain, ReportList *reports, void *data, const char *identifier,
-                                      StructValidateFunc validate, StructCallbackFunc call, StructFreeFunc free)
+static StructRNA *rna_UIList_register(
+        Main *bmain, ReportList *reports, void *data, const char *identifier,
+        StructValidateFunc validate, StructCallbackFunc call, StructFreeFunc free)
 {
 	uiListType *ult, dummyult = {NULL};
 	uiList dummyuilist = {NULL};
@@ -489,8 +496,15 @@ static StructRNA *rna_UIList_register(Main *bmain, ReportList *reports, void *da
 
 	/* check if we have registered this uilist type before, and remove it */
 	ult = WM_uilisttype_find(dummyult.idname, true);
-	if (ult && ult->ext.srna)
+	if (ult && ult->ext.srna) {
 		rna_UIList_unregister(bmain, ult->ext.srna);
+	}
+	if (!RNA_struct_available_or_report(reports, dummyult.idname)) {
+		return NULL;
+	}
+	if (!RNA_struct_bl_idname_ok_or_report(reports, dummyult.idname, "_UL_")) {
+		return NULL;
+	}
 
 	/* create a new menu type */
 	ult = MEM_callocN(sizeof(uiListType) + over_alloc, "python uilist");
@@ -551,16 +565,17 @@ static void rna_Header_unregister(Main *UNUSED(bmain), StructRNA *type)
 		return;
 	
 	RNA_struct_free_extension(type, &ht->ext);
+	RNA_struct_free(&BLENDER_RNA, type);
 
 	BLI_freelinkN(&art->headertypes, ht);
-	RNA_struct_free(&BLENDER_RNA, type);
 
 	/* update while blender is running */
 	WM_main_add_notifier(NC_WINDOW, NULL);
 }
 
-static StructRNA *rna_Header_register(Main *bmain, ReportList *reports, void *data, const char *identifier,
-                                      StructValidateFunc validate, StructCallbackFunc call, StructFreeFunc free)
+static StructRNA *rna_Header_register(
+        Main *bmain, ReportList *reports, void *data, const char *identifier,
+        StructValidateFunc validate, StructCallbackFunc call, StructFreeFunc free)
 {
 	ARegionType *art;
 	HeaderType *ht, dummyht = {NULL};
@@ -593,6 +608,12 @@ static StructRNA *rna_Header_register(Main *bmain, ReportList *reports, void *da
 			break;
 		}
 	}
+	if (!RNA_struct_available_or_report(reports, dummyht.idname)) {
+		return NULL;
+	}
+	if (!RNA_struct_bl_idname_ok_or_report(reports, dummyht.idname, "_HT_")) {
+		return NULL;
+	}
 	
 	/* create a new header type */
 	ht = MEM_callocN(sizeof(HeaderType), "python buttons header");
@@ -673,17 +694,17 @@ static void rna_Menu_unregister(Main *UNUSED(bmain), StructRNA *type)
 		return;
 	
 	RNA_struct_free_extension(type, &mt->ext);
+	RNA_struct_free(&BLENDER_RNA, type);
 
 	WM_menutype_freelink(mt);
 
-	RNA_struct_free(&BLENDER_RNA, type);
-
 	/* update while blender is running */
 	WM_main_add_notifier(NC_WINDOW, NULL);
 }
 
-static StructRNA *rna_Menu_register(Main *bmain, ReportList *reports, void *data, const char *identifier,
-                                    StructValidateFunc validate, StructCallbackFunc call, StructFreeFunc free)
+static StructRNA *rna_Menu_register(
+        Main *bmain, ReportList *reports, void *data, const char *identifier,
+        StructValidateFunc validate, StructCallbackFunc call, StructFreeFunc free)
 {
 	MenuType *mt, dummymt = {NULL};
 	Menu dummymenu = {NULL};
@@ -714,8 +735,15 @@ static StructRNA *rna_Menu_register(Main *bmain, ReportList *reports, void *data
 
 	/* check if we have registered this menu type before, and remove it */
 	mt = WM_menutype_find(dummymt.idname, true);
-	if (mt && mt->ext.srna)
+	if (mt && mt->ext.srna) {
 		rna_Menu_unregister(bmain, mt->ext.srna);
+	}
+	if (!RNA_struct_available_or_report(reports, dummymt.idname)) {
+		return NULL;
+	}
+	if (!RNA_struct_bl_idname_ok_or_report(reports, dummymt.idname, "_MT_")) {
+		return NULL;
+	}
 	
 	/* create a new menu type */
 	if (_menu_descr[0]) {
@@ -937,6 +965,7 @@ static void rna_def_panel(BlenderRNA *brna)
 	RNA_def_struct_refine_func(srna, "rna_Panel_refine");
 	RNA_def_struct_register_funcs(srna, "rna_Panel_register", "rna_Panel_unregister", NULL);
 	RNA_def_struct_translation_context(srna, BLT_I18NCONTEXT_DEFAULT_BPYRNA);
+	RNA_def_struct_flag(srna, STRUCT_PUBLIC_NAMESPACE_INHERIT);
 
 	/* poll */
 	func = RNA_def_function(srna, "poll", NULL);
@@ -1039,7 +1068,7 @@ static void rna_def_uilist(BlenderRNA *brna)
 	RNA_def_struct_refine_func(srna, "rna_UIList_refine");
 	RNA_def_struct_register_funcs(srna, "rna_UIList_register", "rna_UIList_unregister", NULL);
 	RNA_def_struct_idprops_func(srna, "rna_UIList_idprops");
-	RNA_def_struct_flag(srna, STRUCT_NO_DATABLOCK_IDPROPERTIES);
+	RNA_def_struct_flag(srna, STRUCT_NO_DATABLOCK_IDPROPERTIES | STRUCT_PUBLIC_NAMESPACE_INHERIT);
 
 	/* Registration */
 	prop = RNA_def_property(srna, "bl_idname", PROP_STRING, PROP_NONE);
@@ -1161,6 +1190,7 @@ static void rna_def_header(BlenderRNA *brna)
 	RNA_def_struct_sdna(srna, "Header");
 	RNA_def_struct_refine_func(srna, "rna_Header_refine");
 	RNA_def_struct_register_funcs(srna, "rna_Header_register", "rna_Header_unregister", NULL);
+	RNA_def_struct_flag(srna, STRUCT_PUBLIC_NAMESPACE_INHERIT);
 
 	/* draw */
 	func = RNA_def_function(srna, "draw", NULL);
@@ -1208,6 +1238,7 @@ static void rna_def_menu(BlenderRNA *brna)
 	RNA_def_struct_refine_func(srna, "rna_Menu_refine");
 	RNA_def_struct_register_funcs(srna, "rna_Menu_register", "rna_Menu_unregister", NULL);
 	RNA_def_struct_translation_context(srna, BLT_I18NCONTEXT_DEFAULT_BPYRNA);
+	RNA_def_struct_flag(srna, STRUCT_PUBLIC_NAMESPACE_INHERIT);
 
 	/* poll */
 	func = RNA_def_function(srna, "poll", NULL);
diff --git a/source/blender/makesrna/intern/rna_userdef.c b/source/blender/makesrna/intern/rna_userdef.c
index c0f2dbd0706..b50cbee4885 100644
--- a/source/blender/makesrna/intern/rna_userdef.c
+++ b/source/blender/makesrna/intern/rna_userdef.c
@@ -606,16 +606,17 @@ static void rna_AddonPref_unregister(Main *UNUSED(bmain), StructRNA *type)
 		return;
 
 	RNA_struct_free_extension(type, &apt->ext);
+	RNA_struct_free(&BLENDER_RNA, type);
 
 	BKE_addon_pref_type_remove(apt);
-	RNA_struct_free(&BLENDER_RNA, type);
 
 	/* update while blender is running */
 	WM_main_add_notifier(NC_WINDOW, NULL);
 }
 
-static StructRNA *rna_AddonPref_register(Main *bmain, ReportList *reports, void *data, const char *identifier,
-                                         StructValidateFunc validate, StructCallbackFunc call, StructFreeFunc free)
+static StructRNA *rna_AddonPref_register(
+        Main *bmain, ReportList *reports, void *data, const char *identifier,
+        StructValidateFunc validate, StructCallbackFunc call, StructFreeFunc free)
 {
 	bAddonPrefType *apt, dummyapt = {{'\0'}};
 	bAddon dummyaddon = {NULL};
@@ -638,10 +639,8 @@ static StructRNA *rna_AddonPref_register(Main *bmain, ReportList *reports, void
 
 	/* check if we have registered this header type before, and remove it */
 	apt = BKE_addon_pref_type_find(dummyaddon.module, true);
-	if (apt) {
-		if (apt->ext.srna) {
-			rna_AddonPref_unregister(bmain, apt->ext.srna);
-		}
+	if (apt && apt->ext.srna) {
+		rna_AddonPref_unregister(bmain, apt->ext.srna);
 	}
 
 	/* create a new header type */
@@ -3304,6 +3303,13 @@ static void rna_def_userdef_view(BlenderRNA *brna)
 		{0, NULL, 0, NULL, NULL}
 	};
 
+	static EnumPropertyItem line_width[] = {
+		{-1, "THIN", 0, "Thin", "Thinner lines than the default"},
+		{ 0, "AUTO", 0, "Auto", "Automatic line width based on UI scale"},
+		{ 1, "THICK", 0, "Thick", "Thicker lines than the default"},
+		{0, NULL, 0, NULL, NULL}
+	};
+
 	PropertyRNA *prop;
 	StructRNA *srna;
 	
@@ -3321,6 +3327,12 @@ static void rna_def_userdef_view(BlenderRNA *brna)
 	RNA_def_property_float_default(prop, 1.0f);
 	RNA_def_property_update(prop, 0, "rna_userdef_dpi_update");
 
+	prop = RNA_def_property(srna, "ui_line_width", PROP_ENUM, PROP_NONE);
+	RNA_def_property_enum_items(prop, line_width);
+	RNA_def_property_ui_text(prop, "UI Line Width",
+	                         "Changes the thickness of lines and points in the interface");
+	RNA_def_property_update(prop, 0, "rna_userdef_dpi_update");
+
 	/* display */
 	prop = RNA_def_property(srna, "show_tooltips", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "flag", USER_TOOLTIPS);
@@ -3445,6 +3457,11 @@ static void rna_def_userdef_view(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Cursor Depth",
 	                         "Use the depth under the mouse when placing the cursor");
 
+	prop = RNA_def_property(srna, "use_cursor_lock_adjust", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "uiflag", USER_LOCK_CURSOR_ADJUST);
+	RNA_def_property_ui_text(prop, "Cursor Lock Adjust",
+	                         "Place the cursor without 'jumping' to the new location (when lock-to-cursor is used)");
+
 	prop = RNA_def_property(srna, "use_camera_lock_parent", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_negative_sdna(prop, NULL, "uiflag", USER_CAM_LOCK_NO_PARENT);
 	RNA_def_property_ui_text(prop, "Camera Parent Lock",
@@ -3926,12 +3943,18 @@ static void rna_def_userdef_system(BlenderRNA *brna)
 
 	prop = RNA_def_property(srna, "dpi", PROP_INT, PROP_NONE);
 	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
-	RNA_def_property_ui_text(prop, "DPI", "Font size and resolution for display");
+	RNA_def_property_ui_text(prop, "DPI",
+	                         "DPI for add-ons to use when drawing custom user interface elements, controlled by "
+	                         "operating system settings and Blender UI scale, with a reference value of 72 DPI "
+	                         "(note that since this value includes a user defined scale, it is not always the "
+	                         "actual monitor DPI)");
 
 	prop = RNA_def_property(srna, "pixel_size", PROP_FLOAT, PROP_NONE);
 	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
 	RNA_def_property_float_sdna(prop, NULL, "pixelsize");
-	RNA_def_property_ui_text(prop, "Pixel Size", "");
+	RNA_def_property_ui_text(prop, "Pixel Size",
+	                         "Suggested line thickness and point size in pixels, for add-ons drawing custom user "
+	                         "interface elements, controlled by operating system settings and Blender UI scale");
 
 	prop = RNA_def_property(srna, "font_path_ui", PROP_STRING, PROP_FILEPATH);
 	RNA_def_property_string_sdna(prop, NULL, "font_path_ui");
@@ -3979,11 +4002,6 @@ static void rna_def_userdef_system(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Translate New Names", "Translate new data names (when adding/creating some)");
 	RNA_def_property_update(prop, 0, "rna_userdef_update");
 
-	prop = RNA_def_property(srna, "use_textured_fonts", PROP_BOOLEAN, PROP_NONE);
-	RNA_def_property_boolean_sdna(prop, NULL, "transopts", USER_USETEXTUREFONT);
-	RNA_def_property_ui_text(prop, "Textured Fonts", "Use textures for drawing international fonts");
-	RNA_def_property_update(prop, 0, "rna_userdef_update");
-
 	/* System & OpenGL */
 
 	prop = RNA_def_property(srna, "solid_lights", PROP_COLLECTION, PROP_NONE);
diff --git a/source/blender/makesrna/intern/rna_wm.c b/source/blender/makesrna/intern/rna_wm.c
index b5ecaf739c7..df3eae4f221 100644
--- a/source/blender/makesrna/intern/rna_wm.c
+++ b/source/blender/makesrna/intern/rna_wm.c
@@ -32,6 +32,7 @@
 #include "DNA_windowmanager_types.h"
 
 #include "BLI_utildefines.h"
+#include "BLI_string_utils.h"
 
 #include "BLT_translation.h"
 
@@ -1124,8 +1125,8 @@ static StructRNA *rna_Operator_register(
 	struct {
 		char idname[OP_MAX_TYPENAME];
 		char name[OP_MAX_TYPENAME];
-		char descr[RNA_DYN_DESCR_MAX];
-		char ctxt[RNA_DYN_DESCR_MAX];
+		char description[RNA_DYN_DESCR_MAX];
+		char translation_context[RNA_DYN_DESCR_MAX];
 		char undo_group[OP_MAX_TYPENAME];
 	} temp_buffers;
 
@@ -1133,92 +1134,57 @@ static StructRNA *rna_Operator_register(
 	dummyop.type = &dummyot;
 	dummyot.idname = temp_buffers.idname; /* only assigne the pointer, string is NULL'd */
 	dummyot.name = temp_buffers.name; /* only assigne the pointer, string is NULL'd */
-	dummyot.description = temp_buffers.descr; /* only assigne the pointer, string is NULL'd */
-	dummyot.translation_context = temp_buffers.ctxt; /* only assigne the pointer, string is NULL'd */
+	dummyot.description = temp_buffers.description; /* only assigne the pointer, string is NULL'd */
+	dummyot.translation_context = temp_buffers.translation_context; /* only assigne the pointer, string is NULL'd */
 	dummyot.undo_group = temp_buffers.undo_group; /* only assigne the pointer, string is NULL'd */
 	RNA_pointer_create(NULL, &RNA_Operator, &dummyop, &dummyotr);
 
 	/* clear in case they are left unset */
-	temp_buffers.idname[0] = temp_buffers.name[0] = temp_buffers.descr[0] = temp_buffers.undo_group[0] = '\0';
+	temp_buffers.idname[0] = temp_buffers.name[0] = temp_buffers.description[0] = temp_buffers.undo_group[0] = '\0';
 	/* We have to set default op context! */
-	strcpy(temp_buffers.ctxt, BLT_I18NCONTEXT_OPERATOR_DEFAULT);
+	strcpy(temp_buffers.translation_context, BLT_I18NCONTEXT_OPERATOR_DEFAULT);
 
 	/* validate the python class */
 	if (validate(&dummyotr, data, have_function) != 0)
 		return NULL;
 
-	{   /* convert foo.bar to FOO_OT_bar
-		 * allocate the description and the idname in 1 go */
-
-		/* inconveniently long name sanity check */
-		{
-			char *ch = temp_buffers.idname;
-			int i;
-			int dot = 0;
-			for (i = 0; *ch; i++) {
-				if ((*ch >= 'a' && *ch <= 'z') || (*ch >= '0' && *ch <= '9') || *ch == '_') {
-					/* pass */
-				}
-				else if (*ch == '.') {
-					dot++;
-				}
-				else {
-					BKE_reportf(reports, RPT_ERROR,
-					            "Registering operator class: '%s', invalid bl_idname '%s', at position %d",
-					            identifier, temp_buffers.idname, i);
-					return NULL;
-				}
+	/* check if we have registered this operator type before, and remove it */
+	{
+		wmOperatorType *ot = WM_operatortype_find(dummyot.idname, true);
+		if (ot && ot->ext.srna)
+			rna_Operator_unregister(bmain, ot->ext.srna);
+	}
 
-				ch++;
-			}
+	if (!WM_operator_py_idname_ok_or_report(reports, identifier, dummyot.idname)) {
+		return NULL;
+	}
 
-			if (i > ((int)sizeof(dummyop.idname)) - 3) {
-				BKE_reportf(reports, RPT_ERROR, "Registering operator class: '%s', invalid bl_idname '%s', "
-				            "is too long, maximum length is %d", identifier, temp_buffers.idname,
-				            (int)sizeof(dummyop.idname) - 3);
-				return NULL;
-			}
+	char idname_conv[sizeof(dummyop.idname)];
+	WM_operator_bl_idname(idname_conv, dummyot.idname); /* convert the idname from python */
 
-			if (dot != 1) {
-				BKE_reportf(reports, RPT_ERROR,
-				            "Registering operator class: '%s', invalid bl_idname '%s', must contain 1 '.' character",
-				            identifier, temp_buffers.idname);
-				return NULL;
-			}
-		}
-		/* end sanity check */
-
-		{
-			const uint idname_len = strlen(temp_buffers.idname) + 4;
-			const uint name_len = strlen(temp_buffers.name) + 1;
-			const uint desc_len = strlen(temp_buffers.descr) + 1;
-			const uint ctxt_len = strlen(temp_buffers.ctxt) + 1;
-			const uint undo_group_len = strlen(temp_buffers.undo_group) + 1;
-			/* 2 terminators and 3 to convert a.b -> A_OT_b */
-			char *ch = MEM_mallocN(
-			        sizeof(char) * (idname_len + name_len + desc_len + ctxt_len + undo_group_len), __func__);
-			WM_operator_bl_idname(ch, temp_buffers.idname); /* convert the idname from python */
-			dummyot.idname = ch;
-			ch += idname_len;
-			memcpy(ch, temp_buffers.name, name_len);
-			dummyot.name = ch;
-			ch += name_len;
-			memcpy(ch, temp_buffers.descr, desc_len);
-			dummyot.description = ch;
-			ch += desc_len;
-			memcpy(ch, temp_buffers.ctxt, ctxt_len);
-			dummyot.translation_context = ch;
-			ch += ctxt_len;
-			memcpy(ch, temp_buffers.undo_group, undo_group_len);
-			dummyot.undo_group = ch;
-		}
+	if (!RNA_struct_available_or_report(reports, idname_conv)) {
+		return NULL;
 	}
 
-	/* check if we have registered this operator type before, and remove it */
+	/* Convert foo.bar to FOO_OT_bar
+	 * allocate all strings at once. */
 	{
-		wmOperatorType *ot = WM_operatortype_find(dummyot.idname, true);
-		if (ot && ot->ext.srna)
-			rna_Operator_unregister(bmain, ot->ext.srna);
+		const char *strings[] = {
+			idname_conv,
+			temp_buffers.name,
+			temp_buffers.description,
+			temp_buffers.translation_context,
+			temp_buffers.undo_group,
+		};
+		char *strings_table[ARRAY_SIZE(strings)];
+		BLI_string_join_array_by_sep_char_with_tableN('\0', strings_table, strings, ARRAY_SIZE(strings));
+
+		dummyot.idname = strings_table[0];  /* allocated string stored here */
+		dummyot.name = strings_table[1];
+		dummyot.description = strings_table[2];
+		dummyot.translation_context = strings_table[3];
+		dummyot.undo_group = strings_table[4];
+		BLI_assert(ARRAY_SIZE(strings) == 5);
 	}
 
 	/* XXX, this doubles up with the operator name [#29666]
@@ -1269,10 +1235,11 @@ static void rna_Operator_unregister(struct Main *bmain, StructRNA *type)
 
 	idname = ot->idname;
 	WM_operatortype_remove_ptr(ot);
-	MEM_freeN((void *)idname);
 
 	/* not to be confused with the RNA_struct_free that WM_operatortype_remove calls, they are 2 different srna's */
 	RNA_struct_free(&BLENDER_RNA, type);
+
+	MEM_freeN((void *)idname);
 }
 
 static void **rna_Operator_instance(PointerRNA *ptr)
@@ -1293,8 +1260,8 @@ static StructRNA *rna_MacroOperator_register(
 	struct {
 		char idname[OP_MAX_TYPENAME];
 		char name[OP_MAX_TYPENAME];
-		char descr[RNA_DYN_DESCR_MAX];
-		char ctxt[RNA_DYN_DESCR_MAX];
+		char description[RNA_DYN_DESCR_MAX];
+		char translation_context[RNA_DYN_DESCR_MAX];
 		char undo_group[OP_MAX_TYPENAME];
 	} temp_buffers;
 
@@ -1302,15 +1269,15 @@ static StructRNA *rna_MacroOperator_register(
 	dummyop.type = &dummyot;
 	dummyot.idname = temp_buffers.idname; /* only assigne the pointer, string is NULL'd */
 	dummyot.name = temp_buffers.name; /* only assigne the pointer, string is NULL'd */
-	dummyot.description = temp_buffers.descr; /* only assigne the pointer, string is NULL'd */
-	dummyot.translation_context = temp_buffers.ctxt; /* only assigne the pointer, string is NULL'd */
+	dummyot.description = temp_buffers.description; /* only assigne the pointer, string is NULL'd */
+	dummyot.translation_context = temp_buffers.translation_context; /* only assigne the pointer, string is NULL'd */
 	dummyot.undo_group = temp_buffers.undo_group; /* only assigne the pointer, string is NULL'd */
 	RNA_pointer_create(NULL, &RNA_Macro, &dummyop, &dummyotr);
 
 	/* clear in case they are left unset */
-	temp_buffers.idname[0] = temp_buffers.name[0] = temp_buffers.descr[0] = temp_buffers.undo_group[0] = '\0';
+	temp_buffers.idname[0] = temp_buffers.name[0] = temp_buffers.description[0] = temp_buffers.undo_group[0] = '\0';
 	/* We have to set default op context! */
-	strcpy(temp_buffers.ctxt, BLT_I18NCONTEXT_OPERATOR_DEFAULT);
+	strcpy(temp_buffers.translation_context, BLT_I18NCONTEXT_OPERATOR_DEFAULT);
 
 	/* validate the python class */
 	if (validate(&dummyotr, data, have_function) != 0)
@@ -1322,32 +1289,6 @@ static StructRNA *rna_MacroOperator_register(
 		return NULL;
 	}
 
-	{   /* convert foo.bar to FOO_OT_bar
-		 * allocate the description and the idname in 1 go */
-		const uint idname_len = strlen(temp_buffers.idname) + 4;
-		const uint name_len = strlen(temp_buffers.name) + 1;
-		const uint desc_len = strlen(temp_buffers.descr) + 1;
-		const uint ctxt_len = strlen(temp_buffers.ctxt) + 1;
-		const uint undo_group_len = strlen(temp_buffers.undo_group) + 1;
-		/* 2 terminators and 3 to convert a.b -> A_OT_b */
-		char *ch = MEM_mallocN(
-		        sizeof(char) * (idname_len + name_len + desc_len + ctxt_len + undo_group_len), __func__);
-		WM_operator_bl_idname(ch, temp_buffers.idname); /* convert the idname from python */
-		dummyot.idname = ch;
-		ch += idname_len;
-		memcpy(ch, temp_buffers.name, name_len);
-		dummyot.name = ch;
-		ch += name_len;
-		memcpy(ch, temp_buffers.descr, desc_len);
-		dummyot.description = ch;
-		ch += desc_len;
-		memcpy(ch, temp_buffers.ctxt, ctxt_len);
-		dummyot.translation_context = ch;
-		ch += ctxt_len;
-		memcpy(ch, temp_buffers.undo_group, undo_group_len);
-		dummyot.undo_group = ch;
-	}
-
 	/* check if we have registered this operator type before, and remove it */
 	{
 		wmOperatorType *ot = WM_operatortype_find(dummyot.idname, true);
@@ -1355,6 +1296,38 @@ static StructRNA *rna_MacroOperator_register(
 			rna_Operator_unregister(bmain, ot->ext.srna);
 	}
 
+	if (!WM_operator_py_idname_ok_or_report(reports, identifier, dummyot.idname)) {
+		return NULL;
+	}
+
+	char idname_conv[sizeof(dummyop.idname)];
+	WM_operator_bl_idname(idname_conv, dummyot.idname); /* convert the idname from python */
+
+	if (!RNA_struct_available_or_report(reports, idname_conv)) {
+		return NULL;
+	}
+
+	/* Convert foo.bar to FOO_OT_bar
+	 * allocate all strings at once. */
+	{
+		const char *strings[] = {
+			idname_conv,
+			temp_buffers.name,
+			temp_buffers.description,
+			temp_buffers.translation_context,
+			temp_buffers.undo_group,
+		};
+		char *strings_table[ARRAY_SIZE(strings)];
+		BLI_string_join_array_by_sep_char_with_tableN('\0', strings_table, strings, ARRAY_SIZE(strings));
+
+		dummyot.idname = strings_table[0];  /* allocated string stored here */
+		dummyot.name = strings_table[1];
+		dummyot.description = strings_table[2];
+		dummyot.translation_context = strings_table[3];
+		dummyot.undo_group = strings_table[4];
+		BLI_assert(ARRAY_SIZE(strings) == 5);
+	}
+
 	/* XXX, this doubles up with the operator name [#29666]
 	 * for now just remove from dir(bpy.types) */
 
@@ -1488,6 +1461,7 @@ static void rna_def_operator(BlenderRNA *brna)
 	RNA_def_struct_register_funcs(srna, "rna_Operator_register", "rna_Operator_unregister", "rna_Operator_instance");
 #endif
 	RNA_def_struct_translation_context(srna, BLT_I18NCONTEXT_OPERATOR_DEFAULT);
+	RNA_def_struct_flag(srna, STRUCT_PUBLIC_NAMESPACE_INHERIT);
 
 	prop = RNA_def_property(srna, "name", PROP_STRING, PROP_NONE);
 	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
@@ -1591,6 +1565,7 @@ static void rna_def_macro_operator(BlenderRNA *brna)
 	                              "rna_Operator_instance");
 #endif
 	RNA_def_struct_translation_context(srna, BLT_I18NCONTEXT_OPERATOR_DEFAULT);
+	RNA_def_struct_flag(srna, STRUCT_PUBLIC_NAMESPACE_INHERIT);
 
 	prop = RNA_def_property(srna, "name", PROP_STRING, PROP_NONE);
 	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
diff --git a/source/blender/modifiers/intern/MOD_armature.c b/source/blender/modifiers/intern/MOD_armature.c
index 2400dbcb898..f2f76f13883 100644
--- a/source/blender/modifiers/intern/MOD_armature.c
+++ b/source/blender/modifiers/intern/MOD_armature.c
@@ -64,13 +64,13 @@ static void initData(ModifierData *md)
 
 static void copyData(ModifierData *md, ModifierData *target)
 {
+#if 0
 	ArmatureModifierData *amd = (ArmatureModifierData *) md;
+#endif
 	ArmatureModifierData *tamd = (ArmatureModifierData *) target;
 
-	tamd->object = amd->object;
-	tamd->deformflag = amd->deformflag;
-	tamd->multi = amd->multi;
-	BLI_strncpy(tamd->defgrp_name, amd->defgrp_name, sizeof(tamd->defgrp_name));
+	modifier_copyData_generic(md, target);
+	tamd->prevCos = NULL;
 }
 
 static CustomDataMask requiredDataMask(Object *UNUSED(ob), ModifierData *UNUSED(md))
diff --git a/source/blender/modifiers/intern/MOD_bevel.c b/source/blender/modifiers/intern/MOD_bevel.c
index 5874029ae08..93dc0203f83 100644
--- a/source/blender/modifiers/intern/MOD_bevel.c
+++ b/source/blender/modifiers/intern/MOD_bevel.c
@@ -65,19 +65,11 @@ static void initData(ModifierData *md)
 
 static void copyData(ModifierData *md, ModifierData *target)
 {
+#if 0
 	BevelModifierData *bmd = (BevelModifierData *) md;
 	BevelModifierData *tbmd = (BevelModifierData *) target;
-
-	tbmd->value = bmd->value;
-	tbmd->res = bmd->res;
-	tbmd->flags = bmd->flags;
-	tbmd->val_flags = bmd->val_flags;
-	tbmd->lim_flags = bmd->lim_flags;
-	tbmd->e_flags = bmd->e_flags;
-	tbmd->mat = bmd->mat;
-	tbmd->profile = bmd->profile;
-	tbmd->bevel_angle = bmd->bevel_angle;
-	BLI_strncpy(tbmd->defgrp_name, bmd->defgrp_name, sizeof(tbmd->defgrp_name));
+#endif
+	modifier_copyData_generic(md, target);
 }
 
 static CustomDataMask requiredDataMask(Object *UNUSED(ob), ModifierData *md)
diff --git a/source/blender/modifiers/intern/MOD_boolean.c b/source/blender/modifiers/intern/MOD_boolean.c
index f86d8b99f3c..1140460161f 100644
--- a/source/blender/modifiers/intern/MOD_boolean.c
+++ b/source/blender/modifiers/intern/MOD_boolean.c
@@ -59,6 +59,7 @@
 #include "BLI_alloca.h"
 #include "BLI_math_geom.h"
 #include "BKE_material.h"
+#include "BKE_global.h"  /* only to check G.debug */
 #include "MEM_guardedalloc.h"
 
 #include "bmesh.h"
@@ -224,6 +225,8 @@ static DerivedMesh *applyModifier_bmesh(
 		result = get_quick_derivedMesh(ob, dm, bmd->object, dm_other, bmd->operation);
 
 		if (result == NULL) {
+			const bool is_flip = (is_negative_m4(ob->obmat) != is_negative_m4(bmd->object->obmat));
+
 			BMesh *bm;
 			const BMAllocTemplate allocsize = BMALLOC_TEMPLATE_FROM_DM(dm, dm_other);
 
@@ -235,6 +238,16 @@ static DerivedMesh *applyModifier_bmesh(
 			         &((struct BMeshCreateParams){.use_toolflags = false,}));
 
 			DM_to_bmesh_ex(dm_other, bm, true);
+
+			if (UNLIKELY(is_flip)) {
+				const int cd_loop_mdisp_offset = CustomData_get_offset(&bm->ldata, CD_MDISPS);
+				BMIter iter;
+				BMFace *efa;
+				BM_ITER_MESH (efa, &iter, bm, BM_FACES_OF_MESH) {
+					BM_face_normal_flip_ex(bm, efa, cd_loop_mdisp_offset, true);
+				}
+			}
+
 			DM_to_bmesh_ex(dm, bm, true);
 
 			/* main bmesh intersection setup */
@@ -246,7 +259,7 @@ static DerivedMesh *applyModifier_bmesh(
 
 				looptris = MEM_mallocN(sizeof(*looptris) * looptris_tot, __func__);
 
-				BM_mesh_calc_tessellation(bm, looptris, &tottri);
+				BM_mesh_calc_tessellation_beauty(bm, looptris, &tottri);
 
 				/* postpone this until after tessellating
 				 * so we can use the original normals before the vertex are moved */
@@ -262,7 +275,6 @@ static DerivedMesh *applyModifier_bmesh(
 					invert_m4_m4(imat, ob->obmat);
 					mul_m4_m4m4(omat, imat, bmd->object->obmat);
 
-
 					BMVert *eve;
 					i = 0;
 					BM_ITER_MESH (eve, &iter, bm, BM_VERTS_OF_MESH) {
@@ -275,8 +287,13 @@ static DerivedMesh *applyModifier_bmesh(
 					/* we need face normals because of 'BM_face_split_edgenet'
 					 * we could calculate on the fly too (before calling split). */
 					{
-						float nmat[4][4];
-						invert_m4_m4(nmat, omat);
+						float nmat[3][3];
+						copy_m3_m4(nmat, omat);
+						invert_m3(nmat);
+
+						if (UNLIKELY(is_flip)) {
+							negate_m3(nmat);
+						}
 
 						const short ob_src_totcol = bmd->object->totcol;
 						short *material_remap = BLI_array_alloca(material_remap, ob_src_totcol ? ob_src_totcol : 1);
@@ -286,7 +303,7 @@ static DerivedMesh *applyModifier_bmesh(
 						BMFace *efa;
 						i = 0;
 						BM_ITER_MESH (efa, &iter, bm, BM_FACES_OF_MESH) {
-							mul_transposed_mat3_m4_v3(nmat, efa->no);
+							mul_transposed_m3_v3(nmat, efa->no);
 							normalize_v3(efa->no);
 							BM_elem_flag_enable(efa, BM_FACE_TAG);  /* temp tag to test which side split faces are from */
 
@@ -306,11 +323,17 @@ static DerivedMesh *applyModifier_bmesh(
 				 * currently this is ok for 'BM_mesh_intersect' */
 				// BM_mesh_normals_update(bm);
 
-				/* change for testing */
 				bool use_separate = false;
 				bool use_dissolve = true;
 				bool use_island_connect = true;
 
+				/* change for testing */
+				if (G.debug & G_DEBUG) {
+					use_separate = (bmd->bm_flag & eBooleanModifierBMeshFlag_BMesh_Separate) != 0;
+					use_dissolve = (bmd->bm_flag & eBooleanModifierBMeshFlag_BMesh_NoDissolve) == 0;
+					use_island_connect = (bmd->bm_flag & eBooleanModifierBMeshFlag_BMesh_NoConnectRegions) == 0;
+				}
+
 				BM_mesh_intersect(
 				        bm,
 				        looptris, tottri,
diff --git a/source/blender/modifiers/intern/MOD_boolean_util.c b/source/blender/modifiers/intern/MOD_boolean_util.c
index 061b1198f7e..49010664aa8 100644
--- a/source/blender/modifiers/intern/MOD_boolean_util.c
+++ b/source/blender/modifiers/intern/MOD_boolean_util.c
@@ -390,6 +390,9 @@ static void exporter_InitGeomArrays(ExportMeshData *export_data,
 	 * the operand. Data for those layers will not be allocated or initialized.
 	 */
 
+	CustomData_merge(&dm_left->vertData, &dm->vertData, merge_mask, CD_DEFAULT, num_verts);
+	CustomData_merge(&dm_right->vertData, &dm->vertData, merge_mask, CD_DEFAULT, num_verts);
+
 	CustomData_merge(&dm_left->loopData, &dm->loopData, merge_mask, CD_DEFAULT, num_loops);
 	CustomData_merge(&dm_right->loopData, &dm->loopData, merge_mask, CD_DEFAULT, num_loops);
 
diff --git a/source/blender/modifiers/intern/MOD_build.c b/source/blender/modifiers/intern/MOD_build.c
index a364eef2974..56a274b9ac9 100644
--- a/source/blender/modifiers/intern/MOD_build.c
+++ b/source/blender/modifiers/intern/MOD_build.c
@@ -47,6 +47,8 @@
 #include "BKE_particle.h"
 #include "BKE_scene.h"
 
+
+
 #ifdef _OPENMP
 #  include "BKE_mesh.h"  /* BKE_MESH_OMP_LIMIT */
 #endif
diff --git a/source/blender/modifiers/intern/MOD_collision.c b/source/blender/modifiers/intern/MOD_collision.c
index e7ff0a90fbc..74e49dda074 100644
--- a/source/blender/modifiers/intern/MOD_collision.c
+++ b/source/blender/modifiers/intern/MOD_collision.c
@@ -40,7 +40,6 @@
 #include "BLI_math.h"
 #include "BLI_utildefines.h"
 
-
 #include "BKE_collision.h"
 #include "BKE_cdderivedmesh.h"
 #include "BKE_global.h"
@@ -48,6 +47,8 @@
 #include "BKE_pointcache.h"
 #include "BKE_scene.h"
 
+#include "MOD_modifiertypes.h"
+
 static void initData(ModifierData *md) 
 {
 	CollisionModifierData *collmd = (CollisionModifierData *) md;
@@ -152,8 +153,6 @@ static void deformVerts(ModifierData *md, Object *ob,
 				collmd->current_v = MEM_dupallocN(collmd->x); // inter-frame
 
 				collmd->mvert_num = mvert_num;
-				
-				DM_ensure_looptri(dm);
 
 				collmd->tri_num = dm->getNumLoopTri(dm);
 				{
diff --git a/source/blender/modifiers/intern/MOD_curve.c b/source/blender/modifiers/intern/MOD_curve.c
index 3c6ba7acc88..c9a910d769b 100644
--- a/source/blender/modifiers/intern/MOD_curve.c
+++ b/source/blender/modifiers/intern/MOD_curve.c
@@ -39,7 +39,6 @@
 
 #include "BLI_utildefines.h"
 
-
 #include "BKE_cdderivedmesh.h"
 #include "BKE_lattice.h"
 #include "BKE_library_query.h"
@@ -48,6 +47,7 @@
 #include "depsgraph_private.h"
 #include "DEG_depsgraph_build.h"
 
+#include "MOD_modifiertypes.h"
 
 static void initData(ModifierData *md)
 {
diff --git a/source/blender/modifiers/intern/MOD_displace.c b/source/blender/modifiers/intern/MOD_displace.c
index 3325f05025f..fb8c0dd05a5 100644
--- a/source/blender/modifiers/intern/MOD_displace.c
+++ b/source/blender/modifiers/intern/MOD_displace.c
@@ -75,14 +75,10 @@ static void copyData(ModifierData *md, ModifierData *target)
 {
 #if 0
 	DisplaceModifierData *dmd = (DisplaceModifierData *) md;
-#endif
 	DisplaceModifierData *tdmd = (DisplaceModifierData *) target;
+#endif
 
 	modifier_copyData_generic(md, target);
-
-	if (tdmd->texture) {
-		id_us_plus(&tdmd->texture->id);
-	}
 }
 
 static void freeData(ModifierData *md)
diff --git a/source/blender/modifiers/intern/MOD_dynamicpaint.c b/source/blender/modifiers/intern/MOD_dynamicpaint.c
index 83a42504180..eec97828091 100644
--- a/source/blender/modifiers/intern/MOD_dynamicpaint.c
+++ b/source/blender/modifiers/intern/MOD_dynamicpaint.c
@@ -43,6 +43,7 @@
 #include "depsgraph_private.h"
 #include "DEG_depsgraph_build.h"
 
+#include "MOD_modifiertypes.h"
 
 static void initData(ModifierData *md) 
 {
diff --git a/source/blender/modifiers/intern/MOD_edgesplit.c b/source/blender/modifiers/intern/MOD_edgesplit.c
index 4441edb299b..a17870f2bf4 100644
--- a/source/blender/modifiers/intern/MOD_edgesplit.c
+++ b/source/blender/modifiers/intern/MOD_edgesplit.c
@@ -48,6 +48,7 @@
 
 #include "DNA_object_types.h"
 
+#include "MOD_modifiertypes.h"
 
 static DerivedMesh *doEdgeSplit(DerivedMesh *dm, EdgeSplitModifierData *emd)
 {
diff --git a/source/blender/modifiers/intern/MOD_explode.c b/source/blender/modifiers/intern/MOD_explode.c
index ca7b3ce8039..72bc046b440 100644
--- a/source/blender/modifiers/intern/MOD_explode.c
+++ b/source/blender/modifiers/intern/MOD_explode.c
@@ -51,9 +51,9 @@
 #include "BKE_particle.h"
 #include "BKE_scene.h"
 
-
 #include "MEM_guardedalloc.h"
 
+#include "MOD_modifiertypes.h"
 
 static void initData(ModifierData *md)
 {
diff --git a/source/blender/modifiers/intern/MOD_fluidsim.c b/source/blender/modifiers/intern/MOD_fluidsim.c
index 1964e940cb2..53f955b15f0 100644
--- a/source/blender/modifiers/intern/MOD_fluidsim.c
+++ b/source/blender/modifiers/intern/MOD_fluidsim.c
@@ -47,6 +47,8 @@
 #include "DEG_depsgraph_build.h"
 
 #include "MOD_fluidsim_util.h"
+#include "MOD_modifiertypes.h"
+
 #include "MEM_guardedalloc.h"
 
 /* Fluidsim */
diff --git a/source/blender/modifiers/intern/MOD_laplaciandeform.c b/source/blender/modifiers/intern/MOD_laplaciandeform.c
index ce3fdc4bbe8..c2896e83a0b 100644
--- a/source/blender/modifiers/intern/MOD_laplaciandeform.c
+++ b/source/blender/modifiers/intern/MOD_laplaciandeform.c
@@ -29,7 +29,7 @@
  */
 
 #include "BLI_utildefines.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 #include "BLI_math.h"
 #include "BLI_string.h"
 
@@ -539,7 +539,7 @@ static void initSystem(LaplacianDeformModifierData *lmd, Object *ob, DerivedMesh
 				STACK_PUSH(index_anchors, i);
 			}
 		}
-		DM_ensure_looptri(dm);
+
 		total_anchors = STACK_SIZE(index_anchors);
 		lmd->cache_system = initLaplacianSystem(numVerts, dm->getNumEdges(dm), dm->getNumLoopTri(dm),
 		                                       total_anchors, lmd->anchor_grp_name, lmd->repeat);
diff --git a/source/blender/modifiers/intern/MOD_mask.c b/source/blender/modifiers/intern/MOD_mask.c
index dcc7fe4d4f1..18caf4a39f4 100644
--- a/source/blender/modifiers/intern/MOD_mask.c
+++ b/source/blender/modifiers/intern/MOD_mask.c
@@ -53,6 +53,8 @@
 #include "depsgraph_private.h"
 #include "DEG_depsgraph_build.h"
 
+#include "MOD_modifiertypes.h"
+
 #include "BLI_strict_flags.h"
 
 static void copyData(ModifierData *md, ModifierData *target)
diff --git a/source/blender/modifiers/intern/MOD_meshcache_pc2.c b/source/blender/modifiers/intern/MOD_meshcache_pc2.c
index 8360c8ffda7..4b2b3f17d18 100644
--- a/source/blender/modifiers/intern/MOD_meshcache_pc2.c
+++ b/source/blender/modifiers/intern/MOD_meshcache_pc2.c
@@ -146,7 +146,7 @@ bool MOD_meshcache_read_pc2_index(FILE *fp,
 		return false;
 	}
 
-	if (fseek(fp, sizeof(float) * 3 * index * pc2_head.verts_tot , SEEK_CUR) != 0) {
+	if (fseek(fp, sizeof(float) * 3 * index * pc2_head.verts_tot, SEEK_CUR) != 0) {
 		*err_str = "Failed to seek frame";
 		return false;
 	}
diff --git a/source/blender/modifiers/intern/MOD_meshcache_util.c b/source/blender/modifiers/intern/MOD_meshcache_util.c
index c263c4810e4..10861f5b02b 100644
--- a/source/blender/modifiers/intern/MOD_meshcache_util.c
+++ b/source/blender/modifiers/intern/MOD_meshcache_util.c
@@ -36,7 +36,7 @@ void MOD_meshcache_calc_range(const float frame, const char interp,
                               int r_index_range[2], float *r_factor)
 {
 	if (interp == MOD_MESHCACHE_INTERP_NONE) {
-		r_index_range[0] = r_index_range[1] = max_ii(0, min_ii(frame_tot - 1, iroundf(frame)));
+		r_index_range[0] = r_index_range[1] = max_ii(0, min_ii(frame_tot - 1, round_fl_to_int(frame)));
 		*r_factor = 1.0f; /* dummy */
 	}
 	else {
diff --git a/source/blender/modifiers/intern/MOD_meshsequencecache.c b/source/blender/modifiers/intern/MOD_meshsequencecache.c
index f0edcc31a10..5b059ef89d2 100644
--- a/source/blender/modifiers/intern/MOD_meshsequencecache.c
+++ b/source/blender/modifiers/intern/MOD_meshsequencecache.c
@@ -25,12 +25,14 @@
  */
 
 #include "DNA_cachefile_types.h"
+#include "DNA_mesh_types.h"
 #include "DNA_modifier_types.h"
 #include "DNA_object_types.h"
 #include "DNA_scene_types.h"
 
 #include "BKE_cachefile.h"
 #include "BKE_DerivedMesh.h"
+#include "BKE_cdderivedmesh.h"
 #include "BKE_global.h"
 #include "BKE_library.h"
 #include "BKE_library_query.h"
@@ -95,11 +97,15 @@ static bool isDisabled(ModifierData *md, int UNUSED(useRenderParams))
 
 static DerivedMesh *applyModifier(ModifierData *md, Object *ob,
                                   DerivedMesh *dm,
-                                  ModifierApplyFlag flag)
+                                  ModifierApplyFlag UNUSED(flag))
 {
 #ifdef WITH_ALEMBIC
 	MeshSeqCacheModifierData *mcmd = (MeshSeqCacheModifierData *) md;
 
+	/* Only used to check whether we are operating on org data or not... */
+	Mesh *me = (ob->type == OB_MESH) ? ob->data : NULL;
+	DerivedMesh *org_dm = dm;
+
 	Scene *scene = md->scene;
 	const float frame = BKE_scene_frame_get(scene);
 	const float time = BKE_cachefile_time_offset(mcmd->cache_file, frame, FPS);
@@ -121,6 +127,16 @@ static DerivedMesh *applyModifier(ModifierData *md, Object *ob,
 		}
 	}
 
+	if (me != NULL) {
+		MVert *mvert = dm->getVertArray(dm);
+		MEdge *medge = dm->getEdgeArray(dm);
+		MPoly *mpoly = dm->getPolyArray(dm);
+		if ((me->mvert == mvert) || (me->medge == medge) || (me->mpoly == mpoly)) {
+			/* We need to duplicate data here, otherwise we'll modify org mesh, see T51701. */
+			dm = CDDM_copy(dm);
+		}
+	}
+
 	DerivedMesh *result = ABC_read_mesh(mcmd->reader,
 	                                    ob,
 	                                    dm,
@@ -132,11 +148,15 @@ static DerivedMesh *applyModifier(ModifierData *md, Object *ob,
 		modifier_setError(md, "%s", err_str);
 	}
 
+	if (!ELEM(result, NULL, dm) && (dm != org_dm)) {
+		dm->release(dm);
+		dm = org_dm;
+	}
+
 	return result ? result : dm;
-	UNUSED_VARS(flag);
 #else
 	return dm;
-	UNUSED_VARS(md, ob, flag);
+	UNUSED_VARS(md, ob);
 #endif
 }
 
diff --git a/source/blender/modifiers/intern/MOD_mirror.c b/source/blender/modifiers/intern/MOD_mirror.c
index 9705edc580c..157f37e973c 100644
--- a/source/blender/modifiers/intern/MOD_mirror.c
+++ b/source/blender/modifiers/intern/MOD_mirror.c
@@ -48,6 +48,8 @@
 #include "depsgraph_private.h"
 #include "DEG_depsgraph_build.h"
 
+#include "MOD_modifiertypes.h"
+
 static void initData(ModifierData *md)
 {
 	MirrorModifierData *mmd = (MirrorModifierData *) md;
@@ -263,7 +265,7 @@ static DerivedMesh *doMirrorOnAxis(MirrorModifierData *mmd,
 
 	/* handle uvs,
 	 * let tessface recalc handle updating the MTFace data */
-	if (mmd->flag & (MOD_MIR_MIRROR_U | MOD_MIR_MIRROR_V)) {
+	if (mmd->flag & (MOD_MIR_MIRROR_U | MOD_MIR_MIRROR_V) || (is_zero_v2(mmd->uv_offset_copy) == false)) {
 		const bool do_mirr_u = (mmd->flag & MOD_MIR_MIRROR_U) != 0;
 		const bool do_mirr_v = (mmd->flag & MOD_MIR_MIRROR_V) != 0;
 
@@ -276,6 +278,8 @@ static DerivedMesh *doMirrorOnAxis(MirrorModifierData *mmd,
 			for (; j-- > 0; dmloopuv++) {
 				if (do_mirr_u) dmloopuv->uv[0] = 1.0f - dmloopuv->uv[0] + mmd->uv_offset[0];
 				if (do_mirr_v) dmloopuv->uv[1] = 1.0f - dmloopuv->uv[1] + mmd->uv_offset[1];
+				dmloopuv->uv[0] += mmd->uv_offset_copy[0];
+				dmloopuv->uv[1] += mmd->uv_offset_copy[1];
 			}
 		}
 	}
diff --git a/source/blender/modifiers/intern/MOD_multires.c b/source/blender/modifiers/intern/MOD_multires.c
index 90ad1bdfdc2..f9f17b88fa4 100644
--- a/source/blender/modifiers/intern/MOD_multires.c
+++ b/source/blender/modifiers/intern/MOD_multires.c
@@ -46,6 +46,8 @@
 #include "BKE_modifier.h"
 #include "BKE_subsurf.h"
 
+#include "MOD_modifiertypes.h"
+
 static void initData(ModifierData *md)
 {
 	MultiresModifierData *mmd = (MultiresModifierData *)md;
diff --git a/source/blender/modifiers/intern/MOD_ocean.c b/source/blender/modifiers/intern/MOD_ocean.c
index 2c0bfc86e7d..8d8565e7e62 100644
--- a/source/blender/modifiers/intern/MOD_ocean.c
+++ b/source/blender/modifiers/intern/MOD_ocean.c
@@ -44,6 +44,8 @@
 #include "BKE_modifier.h"
 #include "BKE_ocean.h"
 
+#include "MOD_modifiertypes.h"
+
 #ifdef WITH_OCEANSIM
 static void init_cache_data(Object *ob, struct OceanModifierData *omd)
 {
diff --git a/source/blender/modifiers/intern/MOD_particleinstance.c b/source/blender/modifiers/intern/MOD_particleinstance.c
index fbf5a958254..0c91cb08da7 100644
--- a/source/blender/modifiers/intern/MOD_particleinstance.c
+++ b/source/blender/modifiers/intern/MOD_particleinstance.c
@@ -54,6 +54,8 @@
 #include "depsgraph_private.h"
 #include "DEG_depsgraph_build.h"
 
+#include "MOD_modifiertypes.h"
+
 static void initData(ModifierData *md)
 {
 	ParticleInstanceModifierData *pimd = (ParticleInstanceModifierData *) md;
diff --git a/source/blender/modifiers/intern/MOD_screw.c b/source/blender/modifiers/intern/MOD_screw.c
index 87859cd240a..2c3d7f394bb 100644
--- a/source/blender/modifiers/intern/MOD_screw.c
+++ b/source/blender/modifiers/intern/MOD_screw.c
@@ -112,6 +112,56 @@ static void screwvert_iter_step(ScrewVertIter *iter)
 	}
 }
 
+static DerivedMesh *dm_remove_doubles_on_axis(
+        DerivedMesh *result, MVert *mvert_new, const uint totvert, const uint step_tot,
+        const float axis_vec[3], const float axis_offset[3], const float merge_threshold)
+{
+	const float merge_threshold_sq = SQUARE(merge_threshold);
+	const bool use_offset = axis_offset != NULL;
+	uint tot_doubles = 0;
+	for (uint i = 0; i < totvert; i += 1) {
+		float axis_co[3];
+		if (use_offset) {
+			float offset_co[3];
+			sub_v3_v3v3(offset_co, mvert_new[i].co, axis_offset);
+			project_v3_v3v3_normalized(axis_co, offset_co, axis_vec);
+			add_v3_v3(axis_co, axis_offset);
+		}
+		else {
+			project_v3_v3v3_normalized(axis_co, mvert_new[i].co, axis_vec);
+		}
+		const float dist_sq = len_squared_v3v3(axis_co, mvert_new[i].co);
+		if (dist_sq <= merge_threshold_sq) {
+			mvert_new[i].flag |= ME_VERT_TMP_TAG;
+			tot_doubles += 1;
+			copy_v3_v3(mvert_new[i].co, axis_co);
+		}
+	}
+
+	if (tot_doubles != 0) {
+		uint tot = totvert * step_tot;
+		int *full_doubles_map = MEM_mallocN(sizeof(int) * tot, __func__);
+		copy_vn_i(full_doubles_map, (int)tot, -1);
+
+		uint tot_doubles_left = tot_doubles;
+		for (uint i = 0; i < totvert; i += 1) {
+			if (mvert_new[i].flag & ME_VERT_TMP_TAG) {
+				int *doubles_map = &full_doubles_map[totvert + i] ;
+				for (uint step = 1; step < step_tot; step += 1) {
+					*doubles_map = (int)i;
+					doubles_map += totvert;
+				}
+				tot_doubles_left -= 1;
+				if (tot_doubles_left == 0) {
+					break;
+				}
+			}
+		}
+		result = CDDM_merge_verts(result, full_doubles_map, (int)(tot_doubles * (step_tot - 1)), CDDM_MERGE_VERTS_DUMP_IF_MAPPED);
+		MEM_freeN(full_doubles_map);
+	}
+	return result;
+}
 
 static void initData(ModifierData *md)
 {
@@ -123,6 +173,7 @@ static void initData(ModifierData *md)
 	ltmd->steps = 16;
 	ltmd->render_steps = 16;
 	ltmd->iter = 1;
+	ltmd->merge_dist = 0.01f;
 }
 
 static void copyData(ModifierData *md, ModifierData *target)
@@ -1050,6 +1101,16 @@ static DerivedMesh *applyModifier(ModifierData *md, Object *ob,
 		MEM_freeN(vert_loop_map);
 	}
 
+	if ((ltmd->flag & MOD_SCREW_MERGE) && (screw_ofs == 0.0f)) {
+		DerivedMesh *result_prev = result;
+		result = dm_remove_doubles_on_axis(
+		        result, mvert_new, totvert, step_tot,
+		        axis_vec, ltmd->ob_axis ? mtx_tx[3] : NULL, ltmd->merge_dist);
+		if (result != result_prev) {
+			result->dirty |= DM_DIRTY_NORMALS;
+		}
+	}
+
 	if ((ltmd->flag & MOD_SCREW_NORMAL_CALC) == 0) {
 		result->dirty |= DM_DIRTY_NORMALS;
 	}
diff --git a/source/blender/modifiers/intern/MOD_skin.c b/source/blender/modifiers/intern/MOD_skin.c
index 8ed623734be..ad1e4badd3e 100644
--- a/source/blender/modifiers/intern/MOD_skin.c
+++ b/source/blender/modifiers/intern/MOD_skin.c
@@ -77,6 +77,8 @@
 #include "BKE_mesh_mapping.h"
 #include "BKE_modifier.h"
 
+#include "MOD_modifiertypes.h"
+
 #include "bmesh.h"
 
 typedef struct {
diff --git a/source/blender/modifiers/intern/MOD_smoke.c b/source/blender/modifiers/intern/MOD_smoke.c
index c105a3ab3a7..7f2d9e42fe6 100644
--- a/source/blender/modifiers/intern/MOD_smoke.c
+++ b/source/blender/modifiers/intern/MOD_smoke.c
@@ -45,7 +45,6 @@
 
 #include "BLI_utildefines.h"
 
-
 #include "BKE_cdderivedmesh.h"
 #include "BKE_library.h"
 #include "BKE_library_query.h"
@@ -56,6 +55,8 @@
 #include "depsgraph_private.h"
 #include "DEG_depsgraph_build.h"
 
+#include "MOD_modifiertypes.h"
+
 static void initData(ModifierData *md) 
 {
 	SmokeModifierData *smd = (SmokeModifierData *) md;
diff --git a/source/blender/modifiers/intern/MOD_solidify.c b/source/blender/modifiers/intern/MOD_solidify.c
index 911b6997058..e96771e0665 100644
--- a/source/blender/modifiers/intern/MOD_solidify.c
+++ b/source/blender/modifiers/intern/MOD_solidify.c
@@ -36,7 +36,7 @@
 #include "MEM_guardedalloc.h"
 
 #include "BLI_utildefines.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 #include "BLI_bitmap.h"
 #include "BLI_math.h"
 
diff --git a/source/blender/modifiers/intern/MOD_triangulate.c b/source/blender/modifiers/intern/MOD_triangulate.c
index 6fad2756f82..b057d6d5a86 100644
--- a/source/blender/modifiers/intern/MOD_triangulate.c
+++ b/source/blender/modifiers/intern/MOD_triangulate.c
@@ -35,6 +35,8 @@
 #include "bmesh.h"
 #include "bmesh_tools.h"
 
+#include "MOD_modifiertypes.h"
+
 static DerivedMesh *triangulate_dm(DerivedMesh *dm, const int quad_method, const int ngon_method)
 {
 	DerivedMesh *result;
diff --git a/source/blender/modifiers/intern/MOD_wave.c b/source/blender/modifiers/intern/MOD_wave.c
index f0c4940816e..b4990c5250e 100644
--- a/source/blender/modifiers/intern/MOD_wave.c
+++ b/source/blender/modifiers/intern/MOD_wave.c
@@ -90,14 +90,10 @@ static void copyData(ModifierData *md, ModifierData *target)
 {
 #if 0
 	WaveModifierData *wmd = (WaveModifierData *) md;
-#endif
 	WaveModifierData *twmd = (WaveModifierData *) target;
+#endif
 
 	modifier_copyData_generic(md, target);
-
-	if (twmd->texture) {
-		id_us_plus(&twmd->texture->id);
-	}
 }
 
 static bool dependsOnTime(ModifierData *UNUSED(md))
diff --git a/source/blender/modifiers/intern/MOD_weightvgedit.c b/source/blender/modifiers/intern/MOD_weightvgedit.c
index cd30b54350c..13a97c1c13d 100644
--- a/source/blender/modifiers/intern/MOD_weightvgedit.c
+++ b/source/blender/modifiers/intern/MOD_weightvgedit.c
@@ -50,7 +50,9 @@
 #include "DEG_depsgraph_build.h"
 
 #include "MEM_guardedalloc.h"
+
 #include "MOD_weightvg_util.h"
+#include "MOD_modifiertypes.h"
 
 /**************************************
  * Modifiers functions.               *
@@ -91,10 +93,6 @@ static void copyData(ModifierData *md, ModifierData *target)
 	modifier_copyData_generic(md, target);
 
 	twmd->cmap_curve = curvemapping_copy(wmd->cmap_curve);
-
-	if (twmd->mask_texture) {
-		id_us_plus(&twmd->mask_texture->id);
-	}
 }
 
 static CustomDataMask requiredDataMask(Object *UNUSED(ob), ModifierData *md)
diff --git a/source/blender/modifiers/intern/MOD_weightvgmix.c b/source/blender/modifiers/intern/MOD_weightvgmix.c
index 1b3188c83b3..392f42040b0 100644
--- a/source/blender/modifiers/intern/MOD_weightvgmix.c
+++ b/source/blender/modifiers/intern/MOD_weightvgmix.c
@@ -47,7 +47,9 @@
 #include "DEG_depsgraph_build.h"
 
 #include "MEM_guardedalloc.h"
+
 #include "MOD_weightvg_util.h"
+#include "MOD_modifiertypes.h"
 
 
 /**
@@ -136,14 +138,10 @@ static void copyData(ModifierData *md, ModifierData *target)
 {
 #if 0
 	WeightVGMixModifierData *wmd  = (WeightVGMixModifierData *) md;
-#endif
 	WeightVGMixModifierData *twmd = (WeightVGMixModifierData *) target;
+#endif
 
 	modifier_copyData_generic(md, target);
-
-	if (twmd->mask_texture) {
-		id_us_plus(&twmd->mask_texture->id);
-	}
 }
 
 static CustomDataMask requiredDataMask(Object *UNUSED(ob), ModifierData *md)
diff --git a/source/blender/modifiers/intern/MOD_weightvgproximity.c b/source/blender/modifiers/intern/MOD_weightvgproximity.c
index 2c87838aeab..2ca380ba5c2 100644
--- a/source/blender/modifiers/intern/MOD_weightvgproximity.c
+++ b/source/blender/modifiers/intern/MOD_weightvgproximity.c
@@ -51,7 +51,9 @@
 #include "DEG_depsgraph_build.h"
 
 #include "MEM_guardedalloc.h"
+
 #include "MOD_weightvg_util.h"
+#include "MOD_modifiertypes.h"
 
 //#define USE_TIMEIT
 
@@ -286,14 +288,10 @@ static void copyData(ModifierData *md, ModifierData *target)
 {
 #if 0
 	WeightVGProximityModifierData *wmd  = (WeightVGProximityModifierData *) md;
-#endif
 	WeightVGProximityModifierData *twmd = (WeightVGProximityModifierData *) target;
+#endif
 
 	modifier_copyData_generic(md, target);
-
-	if (twmd->mask_texture) {
-		id_us_plus(&twmd->mask_texture->id);
-	}
 }
 
 static CustomDataMask requiredDataMask(Object *UNUSED(ob), ModifierData *md)
diff --git a/source/blender/nodes/composite/nodes/node_composite_image.c b/source/blender/nodes/composite/nodes/node_composite_image.c
index 8139e29bade..a95c3233132 100644
--- a/source/blender/nodes/composite/nodes/node_composite_image.c
+++ b/source/blender/nodes/composite/nodes/node_composite_image.c
@@ -178,6 +178,9 @@ static void cmp_node_image_create_outputs(bNodeTree *ntree, bNode *node, LinkNod
 	cmp_node_image_add_pass_output(ntree, node, "Alpha", RE_PASSNAME_COMBINED, -1, SOCK_FLOAT, false, available_sockets, &prev_index);
 
 	if (ima) {
+		if (!ima->rr) {
+			cmp_node_image_add_pass_output(ntree, node, RE_PASSNAME_Z, RE_PASSNAME_Z, -1, SOCK_FLOAT, false, available_sockets, &prev_index);
+		}
 		BKE_image_release_ibuf(ima, ibuf, NULL);
 	}
 }
diff --git a/source/blender/nodes/shader/nodes/node_shader_fresnel.c b/source/blender/nodes/shader/nodes/node_shader_fresnel.c
index 5a9e33a4053..8262b70fc44 100644
--- a/source/blender/nodes/shader/nodes/node_shader_fresnel.c
+++ b/source/blender/nodes/shader/nodes/node_shader_fresnel.c
@@ -51,14 +51,23 @@ static int node_shader_gpu_fresnel(GPUMaterial *mat, bNode *UNUSED(node), bNodeE
 	return GPU_stack_link(mat, "node_fresnel", in, out, GPU_builtin(GPU_VIEW_POSITION));
 }
 
-static void node_shader_exec_fresnel(void *data, int UNUSED(thread), bNode *UNUSED(node), bNodeExecData *UNUSED(execdata), bNodeStack **in, bNodeStack **out)
+static void node_shader_exec_fresnel(void *data, int UNUSED(thread), bNode *node, bNodeExecData *UNUSED(execdata), bNodeStack **in, bNodeStack **out)
 {
 	ShadeInput *shi = ((ShaderCallData *)data)->shi;
-	float eta = max_ff(in[0]->vec[0], 0.00001);
+
+	/* Compute IOR. */
+	float eta;
+	nodestack_get_vec(&eta, SOCK_FLOAT, in[0]);
+	eta = max_ff(eta, 0.00001);
+	eta = shi->flippednor ? 1 / eta : eta;
+
+	/* Get normal from socket, but only if linked. */
+	bNodeSocket *sock_normal = node->inputs.first;
+	sock_normal = sock_normal->next;
 
 	float n[3];
-	if (in[1]->hasinput) {
-		copy_v3_v3(n, in[1]->vec);
+	if (sock_normal->link) {
+		nodestack_get_vec(n, SOCK_VECTOR, in[1]);
 	}
 	else {
 		copy_v3_v3(n, shi->vn);
@@ -68,7 +77,7 @@ static void node_shader_exec_fresnel(void *data, int UNUSED(thread), bNode *UNUS
 		mul_mat3_m4_v3((float (*)[4])RE_render_current_get_matrix(RE_VIEW_MATRIX), n);
 	}
 
-	out[0]->vec[0] = RE_fresnel_dielectric(shi->view, n, shi->flippednor ? 1 / eta : eta);
+	out[0]->vec[0] = RE_fresnel_dielectric(shi->view, n, eta);
 }
 
 /* node type definition */
diff --git a/source/blender/nodes/shader/nodes/node_shader_layer_weight.c b/source/blender/nodes/shader/nodes/node_shader_layer_weight.c
index a0b2408a7bb..998e1a5687e 100644
--- a/source/blender/nodes/shader/nodes/node_shader_layer_weight.c
+++ b/source/blender/nodes/shader/nodes/node_shader_layer_weight.c
@@ -52,24 +52,33 @@ static int node_shader_gpu_layer_weight(GPUMaterial *mat, bNode *UNUSED(node), b
 	return GPU_stack_link(mat, "node_layer_weight", in, out, GPU_builtin(GPU_VIEW_POSITION));
 }
 
-static void node_shader_exec_layer_weight(void *data, int UNUSED(thread), bNode *UNUSED(node), bNodeExecData *UNUSED(execdata), bNodeStack **in, bNodeStack **out)
+static void node_shader_exec_layer_weight(void *data, int UNUSED(thread), bNode *node, bNodeExecData *UNUSED(execdata), bNodeStack **in, bNodeStack **out)
 {
 	ShadeInput *shi = ((ShaderCallData *)data)->shi;
-	float blend = in[0]->vec[0];
+
+	/* Compute IOR. */
+	float blend;
+	nodestack_get_vec(&blend, SOCK_FLOAT, in[0]);
 	float eta = max_ff(1 - blend, 0.00001);
+	eta = shi->flippednor ? eta : 1 / eta;
+
+	/* Get normal from socket, but only if linked. */
+	bNodeSocket *sock_normal = node->inputs.first;
+	sock_normal = sock_normal->next;
 
 	float n[3];
-	if (in[1]->hasinput) {
-		copy_v3_v3(n, in[1]->vec);
+	if (sock_normal->link) {
+		nodestack_get_vec(n, SOCK_VECTOR, in[1]);
 	}
 	else {
 		copy_v3_v3(n, shi->vn);
 	}
 
+
 	if (shi->use_world_space_shading)
 		mul_mat3_m4_v3((float (*)[4])RE_render_current_get_matrix(RE_VIEW_MATRIX), n);
 
-	out[0]->vec[0] = RE_fresnel_dielectric(shi->view, n, shi->flippednor ? eta : 1 / eta);
+	out[0]->vec[0] = RE_fresnel_dielectric(shi->view, n, eta);
 
 	float facing = fabs(dot_v3v3(shi->view, n));
 	if (blend != 0.5) {
diff --git a/source/blender/python/bmesh/bmesh_py_ops_call.c b/source/blender/python/bmesh/bmesh_py_ops_call.c
index 8f287918a4a..6598d402f72 100644
--- a/source/blender/python/bmesh/bmesh_py_ops_call.c
+++ b/source/blender/python/bmesh/bmesh_py_ops_call.c
@@ -44,6 +44,7 @@
 #include "bmesh_py_types.h"
 
 #include "../generic/python_utildefines.h"
+#include "../generic/py_capi_utils.h"
 
 static int bpy_bm_op_as_py_error(BMesh *bm)
 {
@@ -152,11 +153,9 @@ static int bpy_slot_from_py(
 	switch (slot->slot_type) {
 		case BMO_OP_SLOT_BOOL:
 		{
-			int param;
+			const int param = PyC_Long_AsBool(value);
 
-			param = PyLong_AsLong(value);
-
-			if (param < 0) {
+			if (param == -1) {
 				PyErr_Format(PyExc_TypeError,
 				             "%.200s: keyword \"%.200s\" expected True/False or 0/1, not %.200s",
 				             opname, slot_name, Py_TYPE(value)->tp_name);
@@ -170,23 +169,16 @@ static int bpy_slot_from_py(
 		}
 		case BMO_OP_SLOT_INT:
 		{
-			int overflow;
-			long param = PyLong_AsLongAndOverflow(value, &overflow);
-			if (overflow || (param > INT_MAX) || (param < INT_MIN)) {
-				PyErr_Format(PyExc_ValueError,
-				             "%.200s: keyword \"%.200s\" value not in 'int' range "
-				             "(" STRINGIFY(INT_MIN) ", " STRINGIFY(INT_MAX) ")",
-				             opname, slot_name, Py_TYPE(value)->tp_name);
-				return -1;
-			}
-			else if (param == -1 && PyErr_Occurred()) {
+			const int param = PyC_Long_AsI32(value);
+
+			if (param == -1 && PyErr_Occurred()) {
 				PyErr_Format(PyExc_TypeError,
 				             "%.200s: keyword \"%.200s\" expected an int, not %.200s",
 				             opname, slot_name, Py_TYPE(value)->tp_name);
 				return -1;
 			}
 			else {
-				BMO_SLOT_AS_INT(slot) = (int)param;
+				BMO_SLOT_AS_INT(slot) = param;
 			}
 			break;
 		}
@@ -208,26 +200,19 @@ static int bpy_slot_from_py(
 		{
 			/* XXX - BMesh operator design is crappy here, operator slot should define matrix size,
 			 * not the caller! */
-			unsigned short size;
-			if (!MatrixObject_Check(value)) {
-				PyErr_Format(PyExc_TypeError,
-				             "%.200s: keyword \"%.200s\" expected a Matrix, not %.200s",
-				             opname, slot_name, Py_TYPE(value)->tp_name);
+			MatrixObject *pymat;
+			if (!Matrix_ParseAny(value, &pymat)) {
 				return -1;
 			}
-			else if (BaseMath_ReadCallback((MatrixObject *)value) == -1) {
-				return -1;
-			}
-			else if (((size = ((MatrixObject *)value)->num_col) != ((MatrixObject *)value)->num_row) ||
-			         (ELEM(size, 3, 4) == false))
-			{
+			const ushort size = pymat->num_col;
+			if ((size != pymat->num_row) || (!ELEM(size, 3, 4))) {
 				PyErr_Format(PyExc_TypeError,
 				             "%.200s: keyword \"%.200s\" expected a 3x3 or 4x4 matrix Matrix",
 				             opname, slot_name);
 				return -1;
 			}
 
-			BMO_slot_mat_set(bmop, bmop->slots_in, slot_name, ((MatrixObject *)value)->matrix, size);
+			BMO_slot_mat_set(bmop, bmop->slots_in, slot_name, pymat->matrix, size);
 			break;
 		}
 		case BMO_OP_SLOT_VEC:
@@ -436,7 +421,7 @@ static int bpy_slot_from_py(
 								return -1;  /* error is set in bpy_slot_from_py_elem_check() */
 							}
 
-							value_i = PyLong_AsLong(arg_value);
+							value_i = PyC_Long_AsI32(arg_value);
 
 							if (value_i == -1 && PyErr_Occurred()) {
 								PyErr_Format(PyExc_TypeError,
@@ -466,7 +451,7 @@ static int bpy_slot_from_py(
 								return -1;  /* error is set in bpy_slot_from_py_elem_check() */
 							}
 
-							value_i = PyLong_AsLong(arg_value);
+							value_i = PyC_Long_AsI32(arg_value);
 
 							if (value_i == -1 && PyErr_Occurred()) {
 								PyErr_Format(PyExc_TypeError,
diff --git a/source/blender/python/bmesh/bmesh_py_types.c b/source/blender/python/bmesh/bmesh_py_types.c
index b20c03bee28..52ca475297d 100644
--- a/source/blender/python/bmesh/bmesh_py_types.c
+++ b/source/blender/python/bmesh/bmesh_py_types.c
@@ -124,25 +124,19 @@ static int bpy_bm_elem_hflag_set(BPy_BMElem *self, PyObject *value, void *flag)
 
 	BPY_BM_CHECK_INT(self);
 
-	param = PyLong_AsLong(value);
-
-	if ((unsigned int)param <= 1) {
-		if (hflag == BM_ELEM_SELECT)
-			BM_elem_select_set(self->bm, self->ele, param);
-		else
-			BM_elem_flag_set(self->ele, hflag, param);
+	if ((param = PyC_Long_AsBool(value)) == -1) {
+		return -1;
+	}
 
-		return 0;
+	if (hflag == BM_ELEM_SELECT) {
+		BM_elem_select_set(self->bm, self->ele, param);
 	}
 	else {
-		PyErr_Format(PyExc_TypeError,
-		             "expected True/False or 0/1, not %.200s",
-		             Py_TYPE(value)->tp_name);
-		return -1;
+		BM_elem_flag_set(self->ele, hflag, param);
 	}
+	return 0;
 }
 
-
 PyDoc_STRVAR(bpy_bm_elem_index_doc,
 "Index of this element.\n"
 "\n"
@@ -169,21 +163,17 @@ static int bpy_bm_elem_index_set(BPy_BMElem *self, PyObject *value, void *UNUSED
 
 	BPY_BM_CHECK_INT(self);
 
-	param = PyLong_AsLong(value);
-
-	if (param == -1 && PyErr_Occurred()) {
-		PyErr_SetString(PyExc_TypeError,
-		                "expected an int type");
+	if (((param = PyC_Long_AsI32(value)) == -1) && PyErr_Occurred()) {
+		/* error is set */
 		return -1;
 	}
-	else {
-		BM_elem_index_set(self->ele, param); /* set_dirty! */
 
-		/* when setting the index assume its set invalid */
-		self->bm->elem_index_dirty |= self->ele->head.htype;
+	BM_elem_index_set(self->ele, param); /* set_dirty! */
 
-		return 0;
-	}
+	/* when setting the index assume its set invalid */
+	self->bm->elem_index_dirty |= self->ele->head.htype;
+
+	return 0;
 }
 
 /* type specific get/sets
@@ -506,14 +496,12 @@ static int bpy_bmface_material_index_set(BPy_BMFace *self, PyObject *value)
 
 	BPY_BM_CHECK_INT(self);
 
-	param = PyLong_AsLong(value);
-
-	if (param == -1 && PyErr_Occurred()) {
-		PyErr_SetString(PyExc_TypeError,
-		                "expected an int type");
+	if (((param = PyC_Long_AsI32(value)) == -1) && PyErr_Occurred()) {
+		/* error is set */
 		return -1;
 	}
-	else if ((param < 0) || (param > MAXMAT)) {
+
+	if ((param < 0) || (param > MAXMAT)) {
 		/* normally we clamp but in this case raise an error */
 		PyErr_SetString(PyExc_ValueError,
 		                "material index outside of usable range (0 - 32766)");
@@ -1049,6 +1037,13 @@ PyDoc_STRVAR(bpy_bmesh_from_mesh_doc,
 "   :type use_shape_key: boolean\n"
 "   :arg shape_key_index: The shape key index to use.\n"
 "   :type shape_key_index: int\n"
+"\n"
+"   .. note::\n"
+"\n"
+"      Multiple calls can be used to join multiple meshes.\n"
+"\n"
+"      Custom-data layers are only copied from ``mesh`` on initialization.\n"
+"      Further calls will copy custom-data to matching layers, layers missing on the target mesh wont be added.\n"
 );
 static PyObject *bpy_bmesh_from_mesh(BPy_BMesh *self, PyObject *args, PyObject *kw)
 {
@@ -1113,15 +1108,16 @@ static PyObject *bpy_bmesh_select_flush(BPy_BMesh *self, PyObject *value)
 
 	BPY_BM_CHECK_OBJ(self);
 
-	param = PyLong_AsLong(value);
-	if (param != false && param != true) {
-		PyErr_SetString(PyExc_TypeError,
-		                "expected a boolean type 0/1");
+	if ((param = PyC_Long_AsBool(value)) == -1) {
 		return NULL;
 	}
 
-	if (param)  BM_mesh_select_flush(self->bm);
-	else        BM_mesh_deselect_flush(self->bm);
+	if (param) {
+		BM_mesh_select_flush(self->bm);
+	}
+	else {
+		BM_mesh_deselect_flush(self->bm);
+	}
 
 	Py_RETURN_NONE;
 }
@@ -1301,10 +1297,7 @@ static PyObject *bpy_bm_elem_select_set(BPy_BMElem *self, PyObject *value)
 
 	BPY_BM_CHECK_OBJ(self);
 
-	param = PyLong_AsLong(value);
-	if (param != false && param != true) {
-		PyErr_SetString(PyExc_TypeError,
-		                "expected a boolean type 0/1");
+	if ((param = PyC_Long_AsBool(value)) == -1) {
 		return NULL;
 	}
 
@@ -1329,10 +1322,7 @@ static PyObject *bpy_bm_elem_hide_set(BPy_BMElem *self, PyObject *value)
 
 	BPY_BM_CHECK_OBJ(self);
 
-	param = PyLong_AsLong(value);
-	if (param != false && param != true) {
-		PyErr_SetString(PyExc_TypeError,
-		                "expected a boolean type 0/1");
+	if ((param = PyC_Long_AsBool(value)) == -1) {
 		return NULL;
 	}
 
diff --git a/source/blender/python/bmesh/bmesh_py_types_customdata.c b/source/blender/python/bmesh/bmesh_py_types_customdata.c
index 908f6b5a734..cb95ded4f0d 100644
--- a/source/blender/python/bmesh/bmesh_py_types_customdata.c
+++ b/source/blender/python/bmesh/bmesh_py_types_customdata.c
@@ -43,6 +43,7 @@
 
 #include "../mathutils/mathutils.h"
 #include "../generic/python_utildefines.h"
+#include "../generic/py_capi_utils.h"
 
 #include "BKE_customdata.h"
 
@@ -1074,9 +1075,9 @@ int BPy_BMLayerItem_SetItem(BPy_BMElem *py_ele, BPy_BMLayerItem *py_layer, PyObj
 		}
 		case CD_PROP_INT:
 		{
-			int tmp_val = PyLong_AsLong(py_value);
+			int tmp_val = PyC_Long_AsI32(py_value);
 			if (UNLIKELY(tmp_val == -1 && PyErr_Occurred())) {
-				PyErr_Format(PyExc_TypeError, "expected an int, not a %.200s", Py_TYPE(py_value)->tp_name);
+				/* error is set */
 				ret = -1;
 			}
 			else {
diff --git a/source/blender/python/bmesh/bmesh_py_types_meshdata.c b/source/blender/python/bmesh/bmesh_py_types_meshdata.c
index 92c11a03433..b01d3f89d4e 100644
--- a/source/blender/python/bmesh/bmesh_py_types_meshdata.c
+++ b/source/blender/python/bmesh/bmesh_py_types_meshdata.c
@@ -45,6 +45,7 @@
 
 #include "bmesh_py_types_meshdata.h"
 
+#include "../generic/py_capi_utils.h"
 #include "../generic/python_utildefines.h"
 
 
@@ -188,7 +189,7 @@ static int bpy_bmloopuv_flag_set(BPy_BMLoopUV *self, PyObject *value, void *flag
 {
 	const int flag = GET_INT_FROM_POINTER(flag_p);
 
-	switch (PyLong_AsLong(value)) {
+	switch (PyC_Long_AsBool(value)) {
 		case true:
 			self->data->flag |= flag;
 			return 0;
@@ -196,8 +197,7 @@ static int bpy_bmloopuv_flag_set(BPy_BMLoopUV *self, PyObject *value, void *flag
 			self->data->flag &= ~flag;
 			return 0;
 		default:
-			PyErr_SetString(PyExc_TypeError,
-			                "expected a boolean type 0/1");
+			/* error is set */
 			return -1;
 	}
 }
@@ -297,7 +297,7 @@ static int bpy_bmvertskin_flag_set(BPy_BMVertSkin *self, PyObject *value, void *
 {
 	const int flag = GET_INT_FROM_POINTER(flag_p);
 
-	switch (PyLong_AsLong(value)) {
+	switch (PyC_Long_AsBool(value)) {
 		case true:
 			self->data->flag |= flag;
 			return 0;
@@ -305,8 +305,7 @@ static int bpy_bmvertskin_flag_set(BPy_BMVertSkin *self, PyObject *value, void *
 			self->data->flag &= ~flag;
 			return 0;
 		default:
-			PyErr_SetString(PyExc_TypeError,
-			                "expected a boolean type 0/1");
+			/* error is set */
 			return -1;
 	}
 }
diff --git a/source/blender/python/generic/bgl.c b/source/blender/python/generic/bgl.c
index 3ea10228ad4..9cf00192db5 100644
--- a/source/blender/python/generic/bgl.c
+++ b/source/blender/python/generic/bgl.c
@@ -472,6 +472,49 @@ int BGL_typeSize(int type)
 	return -1;
 }
 
+static int gl_buffer_type_from_py_format_char(char *typestr)
+{
+	if (ELEM(typestr[0], '<', '>', '|')) {
+		typestr += 1;
+	}
+	char format = typestr[0];
+	char byte_num = typestr[1];
+
+	switch (format) {
+		case 't':
+		case 'b':
+		case 'h':
+			if (!byte_num) return GL_BYTE;
+			ATTR_FALLTHROUGH;
+		case 'i':
+			if (!byte_num) return GL_SHORT;
+			ATTR_FALLTHROUGH;
+		case 'l':
+			if (!byte_num || byte_num == '4') return GL_INT;
+			if (byte_num == '1') return GL_BYTE;
+			if (byte_num == '2') return GL_SHORT;
+			break;
+		case 'f':
+			if (!byte_num) return GL_FLOAT;
+			ATTR_FALLTHROUGH;
+		case 'd':
+			if (!byte_num || byte_num == '8') return GL_DOUBLE;
+			if (byte_num == '4') return GL_FLOAT;
+			break;
+	}
+	return -1; /* UNKNOWN */
+}
+
+static bool compare_dimensions(int ndim, int *dim1, Py_ssize_t *dim2)
+{
+	for (int i = 0; i < ndim; i++) {
+		if (dim1[i] != dim2[i]) {
+			return false;
+		}
+	}
+	return true;
+}
+
 /** \} */
 
 
@@ -630,6 +673,22 @@ PyTypeObject BGL_bufferType = {
 	NULL                        /*tp_del*/
 };
 
+
+static Buffer *BGL_MakeBuffer_FromData(PyObject *parent, int type, int ndimensions, int *dimensions, void *buf)
+{
+	Buffer *buffer = (Buffer *)PyObject_NEW(Buffer, &BGL_bufferType);
+
+	Py_XINCREF(parent);
+	buffer->parent = parent;
+	buffer->ndimensions = ndimensions;
+	buffer->dimensions = MEM_mallocN(ndimensions * sizeof(int), "Buffer dimensions");
+	memcpy(buffer->dimensions, dimensions, ndimensions * sizeof(int));
+	buffer->type = type;
+	buffer->buf.asvoid = buf;
+
+	return buffer;
+}
+
 /**
  * Create a buffer object
  *
@@ -641,30 +700,21 @@ Buffer *BGL_MakeBuffer(int type, int ndimensions, int *dimensions, void *initbuf
 {
 	Buffer *buffer;
 	void *buf = NULL;
-	int i, size, length;
+	int i, size = BGL_typeSize(type);
 
-	length = 1;
 	for (i = 0; i < ndimensions; i++) {
-		length *= dimensions[i];
+		size *= dimensions[i];
 	}
 
-	size = BGL_typeSize(type);
+	buf = MEM_mallocN(size, "Buffer buffer");
 
-	buf = MEM_mallocN(length * size, "Buffer buffer");
-
-	buffer = (Buffer *)PyObject_NEW(Buffer, &BGL_bufferType);
-	buffer->parent = NULL;
-	buffer->ndimensions = ndimensions;
-	buffer->dimensions = MEM_mallocN(ndimensions * sizeof(int), "Buffer dimensions");
-	memcpy(buffer->dimensions, dimensions, ndimensions * sizeof(int));
-	buffer->type = type;
-	buffer->buf.asvoid = buf;
+	buffer = BGL_MakeBuffer_FromData(NULL, type, ndimensions, dimensions, buf);
 
 	if (initbuffer) {
-		memcpy(buffer->buf.asvoid, initbuffer, length * size);
+		memcpy(buffer->buf.asvoid, initbuffer, size);
 	}
 	else {
-		memset(buffer->buf.asvoid, 0, length * size);
+		memset(buffer->buf.asvoid, 0, size);
 	}
 	return buffer;
 }
@@ -674,7 +724,7 @@ Buffer *BGL_MakeBuffer(int type, int ndimensions, int *dimensions, void *initbuf
 static PyObject *Buffer_new(PyTypeObject *UNUSED(type), PyObject *args, PyObject *kwds)
 {
 	PyObject *length_ob = NULL, *init = NULL;
-	Buffer *buffer;
+	Buffer *buffer = NULL;
 	int dimensions[MAX_DIMENSIONS];
 
 	int type;
@@ -739,9 +789,32 @@ static PyObject *Buffer_new(PyTypeObject *UNUSED(type), PyObject *args, PyObject
 		return NULL;
 	}
 
-	buffer = BGL_MakeBuffer(type, ndimensions, dimensions, NULL);
-	if (init && ndimensions) {
-		if (Buffer_ass_slice(buffer, 0, dimensions[0], init)) {
+	if (init && PyObject_CheckBuffer(init)) {
+		Py_buffer pybuffer;
+
+		if (PyObject_GetBuffer(init, &pybuffer, PyBUF_ND | PyBUF_FORMAT) == -1) {
+			/* PyObject_GetBuffer raise a PyExc_BufferError */
+			return NULL;
+		}
+
+		if (type != gl_buffer_type_from_py_format_char(pybuffer.format)) {
+			PyErr_Format(PyExc_TypeError,
+			             "`GL_TYPE` and `typestr` of object with buffer interface do not match. '%s'", pybuffer.format);
+		}
+		else if (ndimensions != pybuffer.ndim ||
+		        !compare_dimensions(ndimensions, dimensions, pybuffer.shape))
+		{
+			PyErr_Format(PyExc_TypeError, "array size does not match");
+		}
+		else {
+			buffer = BGL_MakeBuffer_FromData(init, type, pybuffer.ndim, dimensions, pybuffer.buf);
+		}
+
+		PyBuffer_Release(&pybuffer);
+	}
+	else {
+		buffer = BGL_MakeBuffer(type, ndimensions, dimensions, NULL);
+		if (init && Buffer_ass_slice(buffer, 0, dimensions[0], init)) {
 			Py_DECREF(buffer);
 			return NULL;
 		}
@@ -774,27 +847,17 @@ static PyObject *Buffer_item(Buffer *self, int i)
 		}
 	}
 	else {
-		Buffer *newbuf;
-		int j, length, size;
+		int j, offset = i * BGL_typeSize(self->type);
 
-		length = 1;
 		for (j = 1; j < self->ndimensions; j++) {
-			length *= self->dimensions[j];
+			offset *= self->dimensions[j];
 		}
-		size = BGL_typeSize(self->type);
-
-		newbuf = (Buffer *)PyObject_NEW(Buffer, &BGL_bufferType);
-
-		Py_INCREF(self);
-		newbuf->parent = (PyObject *)self;
-
-		newbuf->ndimensions = self->ndimensions - 1;
-		newbuf->type = self->type;
-		newbuf->buf.asvoid = self->buf.asbyte + i * length * size;
-		newbuf->dimensions = MEM_mallocN(newbuf->ndimensions * sizeof(int), "Buffer dimensions");
-		memcpy(newbuf->dimensions, self->dimensions + 1, newbuf->ndimensions * sizeof(int));
 
-		return (PyObject *)newbuf;
+		return (PyObject *)BGL_MakeBuffer_FromData(
+		        (PyObject *)self, self->type,
+		        self->ndimensions - 1,
+		        self->dimensions + 1,
+		        self->buf.asbyte + offset);
 	}
 
 	return NULL;
diff --git a/source/blender/python/generic/bpy_internal_import.c b/source/blender/python/generic/bpy_internal_import.c
index ed2752d8372..7ab6447d21a 100644
--- a/source/blender/python/generic/bpy_internal_import.c
+++ b/source/blender/python/generic/bpy_internal_import.c
@@ -248,8 +248,17 @@ PyObject *bpy_text_reimport(PyObject *module, int *found)
 	if ((name = PyModule_GetName(module)) == NULL)
 		return NULL;
 
-	if ((filepath = (char *)PyModule_GetFilename(module)) == NULL)
-		return NULL;
+	{
+		PyObject *module_file = PyModule_GetFilenameObject(module);
+		if (module_file == NULL) {
+			return NULL;
+		}
+		filepath = (char *)_PyUnicode_AsString(module_file);
+		Py_DECREF(module_file);
+		if (filepath == NULL) {
+			return NULL;
+		}
+	}
 
 	/* look up the text object */
 	text = BLI_findstring(&maggie->text, BLI_path_basename(filepath), offsetof(ID, name) + 2);
diff --git a/source/blender/python/generic/idprop_py_api.c b/source/blender/python/generic/idprop_py_api.c
index 5d6a7c578a2..1153e0176df 100644
--- a/source/blender/python/generic/idprop_py_api.c
+++ b/source/blender/python/generic/idprop_py_api.c
@@ -386,7 +386,7 @@ static IDProperty *idp_from_PyFloat(const char *name, PyObject *ob)
 static IDProperty *idp_from_PyLong(const char *name, PyObject *ob)
 {
 	IDPropertyTemplate val = {0};
-	val.i = _PyLong_AsInt(ob);
+	val.i = PyC_Long_AsI32(ob);
 	if (val.i == -1 && PyErr_Occurred()) {
 		return NULL;
 	}
@@ -499,7 +499,7 @@ static IDProperty *idp_from_PySequence_Fast(const char *name, PyObject *ob)
 			prop_data = IDP_Array(prop);
 			for (i = 0; i < val.array.len; i++) {
 				item = ob_seq_fast_items[i];
-				if (((prop_data[i] = _PyLong_AsInt(item)) == -1) && PyErr_Occurred()) {
+				if (((prop_data[i] = PyC_Long_AsI32(item)) == -1) && PyErr_Occurred()) {
 					return NULL;
 				}
 			}
@@ -1337,7 +1337,7 @@ static int BPy_IDArray_SetItem(BPy_IDArray *self, int index, PyObject *value)
 		}
 		case IDP_INT:
 		{
-			const int i = _PyLong_AsInt(value);
+			const int i = PyC_Long_AsI32(value);
 			if (i == -1 && PyErr_Occurred()) {
 				return -1;
 			}
diff --git a/source/blender/python/generic/py_capi_utils.c b/source/blender/python/generic/py_capi_utils.c
index 2e789d6d4b3..d49f9514b8c 100644
--- a/source/blender/python/generic/py_capi_utils.c
+++ b/source/blender/python/generic/py_capi_utils.c
@@ -85,7 +85,7 @@ int PyC_AsArray_FAST(
 		/* could use is_double for 'long int' but no use now */
 		int *array_int = array;
 		for (i = 0; i < length; i++) {
-			array_int[i] = PyLong_AsLong(value_fast_items[i]);
+			array_int[i] = PyC_Long_AsI32(value_fast_items[i]);
 		}
 	}
 	else if (type == &PyBool_Type) {
@@ -127,54 +127,52 @@ int PyC_AsArray(
 	return ret;
 }
 
+/* -------------------------------------------------------------------- */
+/** \name Typed Tuple Packing
+ *
+ * \note See #PyC_Tuple_Pack_* macros that take multiple arguments.
+ *
+ * \{ */
+
 /* array utility function */
-PyObject *PyC_FromArray(const void *array, int length, const PyTypeObject *type,
-                        const bool is_double, const char *error_prefix)
+PyObject *PyC_Tuple_PackArray_F32(const float *array, uint len)
 {
-	PyObject *tuple;
-	int i;
-
-	tuple = PyTuple_New(length);
-
-	/* for each type */
-	if (type == &PyFloat_Type) {
-		if (is_double) {
-			const double *array_double = array;
-			for (i = 0; i < length; ++i) {
-				PyTuple_SET_ITEM(tuple, i, PyFloat_FromDouble(array_double[i]));
-			}
-		}
-		else {
-			const float *array_float = array;
-			for (i = 0; i < length; ++i) {
-				PyTuple_SET_ITEM(tuple, i, PyFloat_FromDouble(array_float[i]));
-			}
-		}
-	}
-	else if (type == &PyLong_Type) {
-		/* could use is_double for 'long int' but no use now */
-		const int *array_int = array;
-		for (i = 0; i < length; ++i) {
-			PyTuple_SET_ITEM(tuple, i, PyLong_FromLong(array_int[i]));
-		}
+	PyObject *tuple = PyTuple_New(len);
+	for (uint i = 0; i < len; i++) {
+		PyTuple_SET_ITEM(tuple, i, PyFloat_FromDouble(array[i]));
 	}
-	else if (type == &PyBool_Type) {
-		const int *array_bool = array;
-		for (i = 0; i < length; ++i) {
-			PyTuple_SET_ITEM(tuple, i, PyBool_FromLong(array_bool[i]));
-		}
+	return tuple;
+}
+
+PyObject *PyC_Tuple_PackArray_I32(const int *array, uint len)
+{
+	PyObject *tuple = PyTuple_New(len);
+	for (uint i = 0; i < len; i++) {
+		PyTuple_SET_ITEM(tuple, i, PyLong_FromLong(array[i]));
 	}
-	else {
-		Py_DECREF(tuple);
-		PyErr_Format(PyExc_TypeError,
-		             "%s: internal error %s is invalid",
-		             error_prefix, type->tp_name);
-		return NULL;
+	return tuple;
+}
+
+PyObject *PyC_Tuple_PackArray_I32FromBool(const int *array, uint len)
+{
+	PyObject *tuple = PyTuple_New(len);
+	for (uint i = 0; i < len; i++) {
+		PyTuple_SET_ITEM(tuple, i, PyBool_FromLong(array[i]));
 	}
+	return tuple;
+}
 
+PyObject *PyC_Tuple_PackArray_Bool(const bool *array, uint len)
+{
+	PyObject *tuple = PyTuple_New(len);
+	for (uint i = 0; i < len; i++) {
+		PyTuple_SET_ITEM(tuple, i, PyBool_FromLong(array[i]));
+	}
 	return tuple;
 }
 
+/** \} */
+
 /**
  * Caller needs to ensure tuple is uninitialized.
  * Handy for filling a tuple with None for eg.
@@ -203,6 +201,8 @@ void PyC_List_Fill(PyObject *list, PyObject *value)
 
 /**
  * Use with PyArg_ParseTuple's "O&" formatting.
+ *
+ * \see #PyC_Long_AsBool for a similar function to use outside of argument parsing.
  */
 int PyC_ParseBool(PyObject *o, void *p)
 {
@@ -300,7 +300,14 @@ void PyC_FileAndNum(const char **filename, int *lineno)
 		if (mod_name) {
 			PyObject *mod = PyDict_GetItem(PyImport_GetModuleDict(), mod_name);
 			if (mod) {
-				*filename = PyModule_GetFilename(mod);
+				PyObject *mod_file = PyModule_GetFilenameObject(mod);
+				if (mod_file) {
+					*filename = _PyUnicode_AsString(mod_name);
+					Py_DECREF(mod_file);
+				}
+				else {
+					PyErr_Clear();
+				}
 			}
 
 			/* unlikely, fallback */
@@ -1108,3 +1115,101 @@ bool PyC_RunString_AsString(const char *expr, const char *filename, char **r_val
 }
 
 #endif  /* #ifndef MATH_STANDALONE */
+
+/* -------------------------------------------------------------------- */
+
+/** \name Int Conversion
+ *
+ * \note Python doesn't provide overflow checks for specific bit-widths.
+ *
+ * \{ */
+
+/* Compiler optimizes out redundant checks. */
+#ifdef __GNUC__
+#  pragma warning(push)
+#  pragma GCC diagnostic ignored "-Wtype-limits"
+#endif
+
+/**
+ * Don't use `bool` return type, so -1 can be used as an error value.
+ */
+int PyC_Long_AsBool(PyObject *value)
+{
+	int test = _PyLong_AsInt(value);
+	if (UNLIKELY((uint)test > 1)) {
+		PyErr_SetString(PyExc_TypeError,
+		                "Python number not a bool (0/1)");
+		return -1;
+	}
+	return test;
+}
+
+int8_t PyC_Long_AsI8(PyObject *value)
+{
+	int test = _PyLong_AsInt(value);
+	if (UNLIKELY(test < INT8_MIN || test > INT8_MAX)) {
+		PyErr_SetString(PyExc_OverflowError,
+		                "Python int too large to convert to C int8");
+		return -1;
+	}
+	return (int8_t)test;
+}
+
+int16_t PyC_Long_AsI16(PyObject *value)
+{
+	int test = _PyLong_AsInt(value);
+	if (UNLIKELY(test < INT16_MIN || test > INT16_MAX)) {
+		PyErr_SetString(PyExc_OverflowError,
+		                "Python int too large to convert to C int16");
+		return -1;
+	}
+	return (int16_t)test;
+}
+
+/* Inlined in header:
+ * PyC_Long_AsI32
+ * PyC_Long_AsI64
+ */
+
+uint8_t PyC_Long_AsU8(PyObject *value)
+{
+	ulong test = PyLong_AsUnsignedLong(value);
+	if (UNLIKELY(test > UINT8_MAX)) {
+		PyErr_SetString(PyExc_OverflowError,
+		                "Python int too large to convert to C uint8");
+		return (uint8_t)-1;
+	}
+	return (uint8_t)test;
+}
+
+uint16_t PyC_Long_AsU16(PyObject *value)
+{
+	ulong test = PyLong_AsUnsignedLong(value);
+	if (UNLIKELY(test > UINT16_MAX)) {
+		PyErr_SetString(PyExc_OverflowError,
+		                "Python int too large to convert to C uint16");
+		return (uint16_t)-1;
+	}
+	return (uint16_t)test;
+}
+
+uint32_t PyC_Long_AsU32(PyObject *value)
+{
+	ulong test = PyLong_AsUnsignedLong(value);
+	if (UNLIKELY(test > UINT32_MAX)) {
+		PyErr_SetString(PyExc_OverflowError,
+		                "Python int too large to convert to C uint32");
+		return (uint32_t)-1;
+	}
+	return (uint32_t)test;
+}
+
+/* Inlined in header:
+ * PyC_Long_AsU64
+ */
+
+#ifdef __GNUC__
+#  pragma warning(pop)
+#endif
+
+/** \} */
diff --git a/source/blender/python/generic/py_capi_utils.h b/source/blender/python/generic/py_capi_utils.h
index 3f89e1d82a0..327d4e60954 100644
--- a/source/blender/python/generic/py_capi_utils.h
+++ b/source/blender/python/generic/py_capi_utils.h
@@ -24,10 +24,12 @@
  *  \ingroup pygen
  */
 
-
 #ifndef __PY_CAPI_UTILS_H__
 #define __PY_CAPI_UTILS_H__
 
+#include "BLI_sys_types.h"
+#include "BLI_utildefines_variadic.h"
+
 void			PyC_ObSpit(const char *name, PyObject *var);
 void			PyC_LineSpit(void);
 void			PyC_StackSpit(void);
@@ -44,8 +46,21 @@ int             PyC_AsArray_FAST(
 int             PyC_AsArray(
         void *array, PyObject *value, const Py_ssize_t length,
         const PyTypeObject *type, const bool is_double, const char *error_prefix);
-PyObject *      PyC_FromArray(const void *array, int length, const PyTypeObject *type,
-                              const bool is_double, const char *error_prefix);
+
+PyObject       *PyC_Tuple_PackArray_F32(const float *array, uint len);
+PyObject       *PyC_Tuple_PackArray_I32(const int *array, uint len);
+PyObject       *PyC_Tuple_PackArray_I32FromBool(const int *array, uint len);
+PyObject       *PyC_Tuple_PackArray_Bool(const bool *array, uint len);
+
+#define PyC_Tuple_Pack_F32(...) \
+	PyC_Tuple_PackArray_F32(((const float []){__VA_ARGS__}), VA_NARGS_COUNT(__VA_ARGS__))
+#define PyC_Tuple_Pack_I32(...) \
+	PyC_Tuple_PackArray_I32(((const int []){__VA_ARGS__}), VA_NARGS_COUNT(__VA_ARGS__))
+#define PyC_Tuple_Pack_I32FromBool(...) \
+	PyC_Tuple_PackArray_I32FromBool(((const int []){__VA_ARGS__}), VA_NARGS_COUNT(__VA_ARGS__))
+#define PyC_Tuple_Pack_Bool(...) \
+	PyC_Tuple_PackArray_Bool(((const bool []){__VA_ARGS__}), VA_NARGS_COUNT(__VA_ARGS__))
+
 void            PyC_Tuple_Fill(PyObject *tuple, PyObject *value);
 void            PyC_List_Fill(PyObject *list, PyObject *value);
 
@@ -85,4 +100,26 @@ bool PyC_RunString_AsString(const char *expr, const char *filename, char **r_val
 
 int PyC_ParseBool(PyObject *o, void *p);
 
+
+/* Integer parsing (with overflow checks), -1 on error. */
+int     PyC_Long_AsBool(PyObject *value);
+int8_t  PyC_Long_AsI8(PyObject *value);
+int16_t PyC_Long_AsI16(PyObject *value);
+#if 0 /* inline */
+int32_t PyC_Long_AsI32(PyObject *value);
+int64_t PyC_Long_AsI64(PyObject *value);
+#endif
+
+uint8_t  PyC_Long_AsU8(PyObject *value);
+uint16_t PyC_Long_AsU16(PyObject *value);
+uint32_t PyC_Long_AsU32(PyObject *value);
+#if 0 /* inline */
+uint64_t PyC_Long_AsU64(PyObject *value);
+#endif
+
+/* inline so type signatures match as expected */
+Py_LOCAL_INLINE(int32_t)  PyC_Long_AsI32(PyObject *value) { return (int32_t)_PyLong_AsInt(value); }
+Py_LOCAL_INLINE(int64_t)  PyC_Long_AsI64(PyObject *value) { return (int64_t)PyLong_AsLongLong(value); }
+Py_LOCAL_INLINE(uint64_t) PyC_Long_AsU64(PyObject *value) { return (uint64_t)PyLong_AsUnsignedLongLong(value); }
+
 #endif  /* __PY_CAPI_UTILS_H__ */
diff --git a/source/blender/python/generic/python_utildefines.h b/source/blender/python/generic/python_utildefines.h
index f7d3e7a8b4a..2d2d19c05f5 100644
--- a/source/blender/python/generic/python_utildefines.h
+++ b/source/blender/python/generic/python_utildefines.h
@@ -36,16 +36,16 @@ extern "C" {
 	PyTupleObject *op = (PyTupleObject *)op_arg; \
 	PyObject **ob_items = op->ob_item; \
 	CHECK_TYPE_ANY(op_arg, PyObject *, PyTupleObject *); \
-	BLI_assert(_VA_NARGS_COUNT(__VA_ARGS__) == PyTuple_GET_SIZE(op)); \
+	BLI_assert(VA_NARGS_COUNT(__VA_ARGS__) == PyTuple_GET_SIZE(op)); \
 	ARRAY_SET_ITEMS(ob_items, __VA_ARGS__); \
 } (void)0
 
 /* wrap Py_INCREF & return the result,
  * use sparingly to avoid comma operator or temp var assignment */
-BLI_INLINE PyObject *Py_INCREF_RET(PyObject *op) { Py_INCREF(op); return op; }
+Py_LOCAL_INLINE(PyObject *)Py_INCREF_RET(PyObject *op) { Py_INCREF(op); return op; }
 
 /* append & transfer ownership to the list, avoids inline Py_DECREF all over (which is quite a large macro) */
-BLI_INLINE int PyList_APPEND(PyObject *op, PyObject *v)
+Py_LOCAL_INLINE(int) PyList_APPEND(PyObject *op, PyObject *v)
 {
 	int ret = PyList_Append(op, v);
 	Py_DecRef(v);
diff --git a/source/blender/python/intern/CMakeLists.txt b/source/blender/python/intern/CMakeLists.txt
index be4db6477fe..dd84ce0ebe1 100644
--- a/source/blender/python/intern/CMakeLists.txt
+++ b/source/blender/python/intern/CMakeLists.txt
@@ -147,10 +147,6 @@ if(WITH_CODEC_FFMPEG)
 	add_definitions(-DWITH_FFMPEG)
 endif()
 
-if(WITH_CODEC_QUICKTIME)
-	add_definitions(-DWITH_QUICKTIME)
-endif()
-
 if(WITH_CODEC_SNDFILE)
 	add_definitions(-DWITH_SNDFILE)
 endif()
diff --git a/source/blender/python/intern/bpy_app.c b/source/blender/python/intern/bpy_app.c
index 8b3464173d2..f44401afd7d 100644
--- a/source/blender/python/intern/bpy_app.c
+++ b/source/blender/python/intern/bpy_app.c
@@ -89,6 +89,7 @@ static PyStructSequence_Field app_info_fields[] = {
 	{(char *)"version_cycle", (char *)"The release status of this build alpha/beta/rc/release"},
 	{(char *)"binary_path", (char *)"The location of blenders executable, useful for utilities that spawn new instances"},
 	{(char *)"background", (char *)"Boolean, True when blender is running without a user interface (started with -b)"},
+	{(char *)"factory_startup", (char *)"Boolean, True when blender is running with --factory-startup)"},
 
 	/* buildinfo */
 	{(char *)"build_date", (char *)"The date this blender instance was built"},
@@ -156,8 +157,7 @@ static PyObject *make_app_info(void)
 #define SetObjItem(obj) \
 	PyStructSequence_SET_ITEM(app_info, pos++, obj)
 
-	SetObjItem(Py_BuildValue("(iii)",
-	                         BLENDER_VERSION / 100, BLENDER_VERSION % 100, BLENDER_SUBVERSION));
+	SetObjItem(PyC_Tuple_Pack_I32(BLENDER_VERSION / 100, BLENDER_VERSION % 100, BLENDER_SUBVERSION));
 	SetObjItem(PyUnicode_FromFormat("%d.%02d (sub %d)",
 	                                BLENDER_VERSION / 100, BLENDER_VERSION % 100, BLENDER_SUBVERSION));
 
@@ -165,6 +165,7 @@ static PyObject *make_app_info(void)
 	SetStrItem(STRINGIFY(BLENDER_VERSION_CYCLE));
 	SetStrItem(BKE_appdir_program_path());
 	SetObjItem(PyBool_FromLong(G.background));
+	SetObjItem(PyBool_FromLong(G.factory_startup));
 
 	/* build info, use bytes since we can't assume _any_ encoding:
 	 * see patch [#30154] for issue */
@@ -290,7 +291,7 @@ static PyObject *bpy_app_debug_value_get(PyObject *UNUSED(self), void *UNUSED(cl
 
 static int bpy_app_debug_value_set(PyObject *UNUSED(self), PyObject *value, void *UNUSED(closure))
 {
-	int param = PyLong_AsLong(value);
+	int param = PyC_Long_AsI32(value);
 
 	if (param == -1 && PyErr_Occurred()) {
 		PyErr_SetString(PyExc_TypeError, "bpy.app.debug_value can only be set to a whole number");
diff --git a/source/blender/python/intern/bpy_app_alembic.c b/source/blender/python/intern/bpy_app_alembic.c
index 90e6a02b418..2a1a031a629 100644
--- a/source/blender/python/intern/bpy_app_alembic.c
+++ b/source/blender/python/intern/bpy_app_alembic.c
@@ -34,6 +34,8 @@
 
 #include "bpy_app_alembic.h"
 
+#include "../generic/py_capi_utils.h"
+
 #ifdef WITH_ALEMBIC
 #  include "ABC_alembic.h"
 #endif
@@ -79,11 +81,11 @@ static PyObject *make_alembic_info(void)
 	const int patch = curversion - ((curversion / 100 ) * 100);
 
 	SetObjItem(PyBool_FromLong(1));
-	SetObjItem(Py_BuildValue("(iii)", major, minor, patch));
+	SetObjItem(PyC_Tuple_Pack_I32(major, minor, patch));
 	SetObjItem(PyUnicode_FromFormat("%2d, %2d, %2d", major, minor, patch));
 #else
 	SetObjItem(PyBool_FromLong(0));
-	SetObjItem(Py_BuildValue("(iii)", 0, 0, 0));
+	SetObjItem(PyC_Tuple_Pack_I32(0, 0, 0));
 	SetStrItem("Unknown");
 #endif
 
diff --git a/source/blender/python/intern/bpy_app_build_options.c b/source/blender/python/intern/bpy_app_build_options.c
index a6b98567a9a..501e09dd6ad 100644
--- a/source/blender/python/intern/bpy_app_build_options.c
+++ b/source/blender/python/intern/bpy_app_build_options.c
@@ -37,7 +37,6 @@ static PyStructSequence_Field app_builtopts_info_fields[] = {
 	{(char *)"bullet", NULL},
 	{(char *)"codec_avi", NULL},
 	{(char *)"codec_ffmpeg", NULL},
-	{(char *)"codec_quicktime", NULL},
 	{(char *)"codec_sndfile", NULL},
 	{(char *)"compositor", NULL},
 	{(char *)"cycles", NULL},
@@ -112,12 +111,6 @@ static PyObject *make_builtopts_info(void)
 	SetObjIncref(Py_False);
 #endif
 
-#ifdef WITH_QUICKTIME
-	SetObjIncref(Py_True);
-#else
-	SetObjIncref(Py_False);
-#endif
-
 #ifdef WITH_SNDFILE
 	SetObjIncref(Py_True);
 #else
diff --git a/source/blender/python/intern/bpy_app_ffmpeg.c b/source/blender/python/intern/bpy_app_ffmpeg.c
index fd516e4547f..9f8355db72b 100644
--- a/source/blender/python/intern/bpy_app_ffmpeg.c
+++ b/source/blender/python/intern/bpy_app_ffmpeg.c
@@ -29,6 +29,8 @@
 
 #include "bpy_app_ffmpeg.h"
 
+#include "../generic/py_capi_utils.h"
+
 #ifdef WITH_FFMPEG
 #include <libavcodec/avcodec.h>
 #include <libavdevice/avdevice.h>
@@ -91,8 +93,7 @@ static PyObject *make_ffmpeg_info(void)
 #ifdef WITH_FFMPEG
 #  define FFMPEG_LIB_VERSION(lib) { \
 		curversion = lib ## _version(); \
-		SetObjItem(Py_BuildValue("(iii)", \
-		                         curversion >> 16, (curversion >> 8) % 256, curversion % 256)); \
+		SetObjItem(PyC_Tuple_Pack_I32(curversion >> 16, (curversion >> 8) % 256, curversion % 256)); \
 		SetObjItem(PyUnicode_FromFormat("%2d, %2d, %2d", \
 		                                curversion >> 16, (curversion >> 8) % 256, curversion % 256)); \
 } (void)0
diff --git a/source/blender/python/intern/bpy_app_handlers.c b/source/blender/python/intern/bpy_app_handlers.c
index fdc2371c259..90aa22de5bf 100644
--- a/source/blender/python/intern/bpy_app_handlers.c
+++ b/source/blender/python/intern/bpy_app_handlers.c
@@ -59,8 +59,12 @@ static PyStructSequence_Field app_cb_info_fields[] = {
 	{(char *)"load_post",         (char *)"on loading a new blend file (after)"},
 	{(char *)"save_pre",          (char *)"on saving a blend file (before)"},
 	{(char *)"save_post",         (char *)"on saving a blend file (after)"},
-	{(char *)"scene_update_pre",  (char *)"on updating the scenes data (before)"},
-	{(char *)"scene_update_post", (char *)"on updating the scenes data (after)"},
+	{(char *)"scene_update_pre",  (char *)"on every scene data update. Does not imply that anything changed in the "
+                                          "scene, just that the dependency graph is about to be reevaluated, and the "
+                                          "scene is about to be updated by Blender's animation system."},
+	{(char *)"scene_update_post",  (char *)"on every scene data update. Does not imply that anything changed in the "
+                                           "scene, just that the dependency graph was reevaluated, and the scene was "
+                                           "possibly updated by Blender's animation system."},
 	{(char *)"game_pre",          (char *)"on starting the game engine"},
 	{(char *)"game_post",         (char *)"on ending the game engine"},
 	{(char *)"version_update",    (char *)"on ending the versioning code"},
diff --git a/source/blender/python/intern/bpy_app_ocio.c b/source/blender/python/intern/bpy_app_ocio.c
index 02e4044219a..9997e6b87f1 100644
--- a/source/blender/python/intern/bpy_app_ocio.c
+++ b/source/blender/python/intern/bpy_app_ocio.c
@@ -29,6 +29,8 @@
 
 #include "bpy_app_ocio.h"
 
+#include "../generic/py_capi_utils.h"
+
 #ifdef WITH_OCIO
 #  include "ocio_capi.h"
 #endif
@@ -74,13 +76,12 @@ static PyObject *make_ocio_info(void)
 #ifdef WITH_OCIO
 	curversion = OCIO_getVersionHex();
 	SetObjItem(PyBool_FromLong(1));
-	SetObjItem(Py_BuildValue("(iii)",
-	                         curversion >> 24, (curversion >> 16) % 256, (curversion >> 8) % 256));
+	SetObjItem(PyC_Tuple_Pack_I32(curversion >> 24, (curversion >> 16) % 256, (curversion >> 8) % 256));
 	SetObjItem(PyUnicode_FromFormat("%2d, %2d, %2d",
 	                                curversion >> 24, (curversion >> 16) % 256, (curversion >> 8) % 256));
 #else
 	SetObjItem(PyBool_FromLong(0));
-	SetObjItem(Py_BuildValue("(iii)", 0, 0, 0));
+	SetObjItem(PyC_Tuple_Pack_I32(0, 0, 0));
 	SetStrItem("Unknown");
 #endif
 
diff --git a/source/blender/python/intern/bpy_app_oiio.c b/source/blender/python/intern/bpy_app_oiio.c
index 60daf3ddd8b..e14b48ff7cf 100644
--- a/source/blender/python/intern/bpy_app_oiio.c
+++ b/source/blender/python/intern/bpy_app_oiio.c
@@ -29,6 +29,8 @@
 
 #include "bpy_app_oiio.h"
 
+#include "../generic/py_capi_utils.h"
+
 #ifdef WITH_OPENIMAGEIO
 #  include "openimageio_api.h"
 #endif
@@ -74,13 +76,12 @@ static PyObject *make_oiio_info(void)
 #ifdef WITH_OPENIMAGEIO
 	curversion = OIIO_getVersionHex();
 	SetObjItem(PyBool_FromLong(1));
-	SetObjItem(Py_BuildValue("(iii)",
-	                         curversion / 10000, (curversion / 100) % 100, curversion % 100));
+	SetObjItem(PyC_Tuple_Pack_I32(curversion / 10000, (curversion / 100) % 100, curversion % 100));
 	SetObjItem(PyUnicode_FromFormat("%2d, %2d, %2d",
 	                                curversion / 10000, (curversion / 100) % 100, curversion % 100));
 #else
 	SetObjItem(PyBool_FromLong(0));
-	SetObjItem(Py_BuildValue("(iii)", 0, 0, 0));
+	SetObjItem(PyC_Tuple_Pack_I32(0, 0, 0));
 	SetStrItem("Unknown");
 #endif
 
diff --git a/source/blender/python/intern/bpy_app_opensubdiv.c b/source/blender/python/intern/bpy_app_opensubdiv.c
index 7f269baf2b0..096374794c9 100644
--- a/source/blender/python/intern/bpy_app_opensubdiv.c
+++ b/source/blender/python/intern/bpy_app_opensubdiv.c
@@ -29,6 +29,8 @@
 
 #include "bpy_app_opensubdiv.h"
 
+#include "../generic/py_capi_utils.h"
+
 #ifdef WITH_OPENSUBDIV
 #  include "opensubdiv_capi.h"
 #endif
@@ -70,13 +72,12 @@ static PyObject *make_opensubdiv_info(void)
 #ifdef WITH_OPENSUBDIV
 	int curversion = openSubdiv_getVersionHex();
 	SetObjItem(PyBool_FromLong(1));
-	SetObjItem(Py_BuildValue("(iii)",
-	                         curversion / 10000, (curversion / 100) % 100, curversion % 100));
+	SetObjItem(PyC_Tuple_Pack_I32(curversion / 10000, (curversion / 100) % 100, curversion % 100));
 	SetObjItem(PyUnicode_FromFormat("%2d, %2d, %2d",
 	                                curversion / 10000, (curversion / 100) % 100, curversion % 100));
 #else
 	SetObjItem(PyBool_FromLong(0));
-	SetObjItem(Py_BuildValue("(iii)", 0, 0, 0));
+	SetObjItem(PyC_Tuple_Pack_I32(0, 0, 0));
 	SetStrItem("Unknown");
 #endif
 
diff --git a/source/blender/python/intern/bpy_app_openvdb.c b/source/blender/python/intern/bpy_app_openvdb.c
index 8a24aaf0555..0b385206d7b 100644
--- a/source/blender/python/intern/bpy_app_openvdb.c
+++ b/source/blender/python/intern/bpy_app_openvdb.c
@@ -34,6 +34,8 @@
 
 #include "bpy_app_openvdb.h"
 
+#include "../generic/py_capi_utils.h"
+
 #ifdef WITH_OPENVDB
 #  include "openvdb_capi.h"
 #endif
@@ -79,13 +81,12 @@ static PyObject *make_openvdb_info(void)
 #ifdef WITH_OPENVDB
 	curversion = OpenVDB_getVersionHex();
 	SetObjItem(PyBool_FromLong(1));
-	SetObjItem(Py_BuildValue("(iii)",
-	                         curversion >> 24, (curversion >> 16) % 256, (curversion >> 8) % 256));
+	SetObjItem(PyC_Tuple_Pack_I32(curversion >> 24, (curversion >> 16) % 256, (curversion >> 8) % 256));
 	SetObjItem(PyUnicode_FromFormat("%2d, %2d, %2d",
 	                                curversion >> 24, (curversion >> 16) % 256, (curversion >> 8) % 256));
 #else
 	SetObjItem(PyBool_FromLong(0));
-	SetObjItem(Py_BuildValue("(iii)", 0, 0, 0));
+	SetObjItem(PyC_Tuple_Pack_I32(0, 0, 0));
 	SetStrItem("Unknown");
 #endif
 
diff --git a/source/blender/python/intern/bpy_app_sdl.c b/source/blender/python/intern/bpy_app_sdl.c
index 76dab775953..816ad2833cc 100644
--- a/source/blender/python/intern/bpy_app_sdl.c
+++ b/source/blender/python/intern/bpy_app_sdl.c
@@ -29,6 +29,8 @@
 
 #include "bpy_app_sdl.h"
 
+#include "../generic/py_capi_utils.h"
+
 #ifdef WITH_SDL
 /* SDL force defines __SSE__ and __SSE2__ flags, which generates warnings
  * because we pass those defines via command line as well. For until there's
@@ -103,7 +105,7 @@ static PyObject *make_sdl_info(void)
 #  endif
 # endif
 
-	SetObjItem(Py_BuildValue("(iii)", version.major, version.minor, version.patch));
+	SetObjItem(PyC_Tuple_Pack_I32(version.major, version.minor, version.patch));
 	if (sdl_available) {
 		SetObjItem(PyUnicode_FromFormat("%d.%d.%d", version.major, version.minor, version.patch));
 	}
@@ -114,7 +116,7 @@ static PyObject *make_sdl_info(void)
 
 #else // WITH_SDL=OFF
 	SetObjItem(PyBool_FromLong(0));
-	SetObjItem(Py_BuildValue("(iii)", 0, 0, 0));
+	SetObjItem(PyC_Tuple_Pack_I32(0, 0, 0));
 	SetStrItem("Unknown");
 	SetObjItem(PyBool_FromLong(0));
 #endif
diff --git a/source/blender/python/intern/bpy_interface.c b/source/blender/python/intern/bpy_interface.c
index 7b0daa91523..20cfd364a0c 100644
--- a/source/blender/python/intern/bpy_interface.c
+++ b/source/blender/python/intern/bpy_interface.c
@@ -869,6 +869,7 @@ static void bpy_module_delay_init(PyObject *bpy_proxy)
 
 	BLI_strncpy(filename_abs, filename_rel, sizeof(filename_abs));
 	BLI_path_cwd(filename_abs, sizeof(filename_abs));
+	Py_DECREF(filename_obj);
 
 	argv[0] = filename_abs;
 	argv[1] = NULL;
diff --git a/source/blender/python/intern/bpy_library_load.c b/source/blender/python/intern/bpy_library_load.c
index 15f3c665fcf..cb6a7147368 100644
--- a/source/blender/python/intern/bpy_library_load.c
+++ b/source/blender/python/intern/bpy_library_load.c
@@ -73,7 +73,7 @@ typedef struct {
 } BPy_Library;
 
 static PyObject *bpy_lib_load(PyObject *self, PyObject *args, PyObject *kwds);
-static PyObject *bpy_lib_enter(BPy_Library *self, PyObject *args);
+static PyObject *bpy_lib_enter(BPy_Library *self);
 static PyObject *bpy_lib_exit(BPy_Library *self, PyObject *args);
 static PyObject *bpy_lib_dir(BPy_Library *self);
 
@@ -237,7 +237,7 @@ static PyObject *_bpy_names(BPy_Library *self, int blocktype)
 	return list;
 }
 
-static PyObject *bpy_lib_enter(BPy_Library *self, PyObject *UNUSED(args))
+static PyObject *bpy_lib_enter(BPy_Library *self)
 {
 	PyObject *ret;
 	BPy_Library *self_from;
diff --git a/source/blender/python/intern/bpy_operator_wrap.c b/source/blender/python/intern/bpy_operator_wrap.c
index 90719905a79..9d57adca946 100644
--- a/source/blender/python/intern/bpy_operator_wrap.c
+++ b/source/blender/python/intern/bpy_operator_wrap.c
@@ -48,10 +48,12 @@ static void operator_properties_init(wmOperatorType *ot)
 	PyTypeObject *py_class = ot->ext.data;
 	RNA_struct_blender_type_set(ot->ext.srna, ot);
 
-	/* only call this so pyrna_deferred_register_class gives a useful error
-	 * WM_operatortype_append_ptr will call RNA_def_struct_identifier
-	 * later */
-	RNA_def_struct_identifier(ot->srna, ot->idname);
+	/* Only call this so pyrna_deferred_register_class gives a useful error
+	 * WM_operatortype_append_ptr will call RNA_def_struct_identifier later.
+	 *
+	 * Note the 'no_struct_map' function is used since the actual struct name is already used by the operator.
+	 */
+	RNA_def_struct_identifier_no_struct_map(ot->srna, ot->idname);
 
 	if (pyrna_deferred_register_class(ot->srna, py_class) != 0) {
 		PyErr_Print(); /* failed to register operator props */
diff --git a/source/blender/python/intern/bpy_props.c b/source/blender/python/intern/bpy_props.c
index c7787ba9682..9ef8f9aa046 100644
--- a/source/blender/python/intern/bpy_props.c
+++ b/source/blender/python/intern/bpy_props.c
@@ -320,7 +320,7 @@ static int bpy_prop_boolean_get_cb(struct PointerRNA *ptr, struct PropertyRNA *p
 		value = false;
 	}
 	else {
-		value = PyLong_AsLong(ret);
+		value = PyC_Long_AsI32(ret);
 
 		if (value == -1 && PyErr_Occurred()) {
 			printf_func_error(py_func);
@@ -530,12 +530,8 @@ static void bpy_prop_boolean_array_set_cb(struct PointerRNA *ptr, struct Propert
 	self = pyrna_struct_as_instance(ptr);
 	PyTuple_SET_ITEM(args, 0, self);
 
-	py_values = PyC_FromArray(values, len, &PyBool_Type, false, "BoolVectorProperty set");
-	if (!py_values) {
-		printf_func_error(py_func);
-	}
-	else
-		PyTuple_SET_ITEM(args, 1, py_values);
+	py_values = PyC_Tuple_PackArray_I32FromBool(values, len);
+	PyTuple_SET_ITEM(args, 1, py_values);
 
 	ret = PyObject_CallObject(py_func, args);
 
@@ -599,7 +595,7 @@ static int bpy_prop_int_get_cb(struct PointerRNA *ptr, struct PropertyRNA *prop)
 		value = 0.0f;
 	}
 	else {
-		value = PyLong_AsLong(ret);
+		value = PyC_Long_AsI32(ret);
 
 		if (value == -1 && PyErr_Occurred()) {
 			printf_func_error(py_func);
@@ -764,12 +760,8 @@ static void bpy_prop_int_array_set_cb(struct PointerRNA *ptr, struct PropertyRNA
 	self = pyrna_struct_as_instance(ptr);
 	PyTuple_SET_ITEM(args, 0, self);
 
-	py_values = PyC_FromArray(values, len, &PyLong_Type, false, "IntVectorProperty set");
-	if (!py_values) {
-		printf_func_error(py_func);
-	}
-	else
-		PyTuple_SET_ITEM(args, 1, py_values);
+	py_values = PyC_Tuple_PackArray_I32(values, len);
+	PyTuple_SET_ITEM(args, 1, py_values);
 
 	ret = PyObject_CallObject(py_func, args);
 
@@ -998,12 +990,8 @@ static void bpy_prop_float_array_set_cb(struct PointerRNA *ptr, struct PropertyR
 	self = pyrna_struct_as_instance(ptr);
 	PyTuple_SET_ITEM(args, 0, self);
 
-	py_values = PyC_FromArray(values, len, &PyFloat_Type, false, "FloatVectorProperty set");
-	if (!py_values) {
-		printf_func_error(py_func);
-	}
-	else
-		PyTuple_SET_ITEM(args, 1, py_values);
+	py_values = PyC_Tuple_PackArray_F32(values, len);
+	PyTuple_SET_ITEM(args, 1, py_values);
 
 	ret = PyObject_CallObject(py_func, args);
 
@@ -1249,7 +1237,7 @@ static int bpy_prop_enum_get_cb(struct PointerRNA *ptr, struct PropertyRNA *prop
 		value = RNA_property_enum_get_default(ptr, prop);
 	}
 	else {
-		value = PyLong_AsLong(ret);
+		value = PyC_Long_AsI32(ret);
 
 		if (value == -1 && PyErr_Occurred()) {
 			printf_func_error(py_func);
@@ -2697,7 +2685,8 @@ PyDoc_STRVAR(BPy_EnumProperty_doc,
 "      :icon: An icon string identifier or integer icon value\n"
 "         (e.g. returned by :class:`bpy.types.UILayout.icon`)\n"
 "      :number: Unique value used as the identifier for this item (stored in file data).\n"
-"         Use when the identifier may need to change.\n"
+"         Use when the identifier may need to change. If the *ENUM_FLAG* option is used,\n"
+"         the values are bitmasks and should be powers of two.\n"
 "\n"
 "      When an item only contains 4 items they define ``(identifier, name, description, number)``.\n"
 "\n"
@@ -2891,7 +2880,7 @@ PyObject *BPy_PointerProperty(PyObject *self, PyObject *args, PyObject *kw)
 		PyObject *update_cb = NULL, *poll_cb = NULL;
 
 		if (!PyArg_ParseTupleAndKeywords(args, kw,
-		                                 "s#O|ssO!OOO:PointerProperty",
+		                                 "s#O|ssO!OO:PointerProperty",
 		                                 (char **)kwlist, &id, &id_len,
 		                                 &type, &name, &description,
 		                                 &PySet_Type, &pyopts,
diff --git a/source/blender/python/intern/bpy_rna.c b/source/blender/python/intern/bpy_rna.c
index eda880d4dce..398d2631f6c 100644
--- a/source/blender/python/intern/bpy_rna.c
+++ b/source/blender/python/intern/bpy_rna.c
@@ -70,6 +70,8 @@
 #include "BKE_report.h"
 #include "BKE_idprop.h"
 
+/* only for types */
+#include "BKE_node.h"
 
 #include "../generic/idprop_py_api.h" /* for IDprop lookups */
 #include "../generic/py_capi_utils.h"
@@ -1395,7 +1397,7 @@ static PyObject *pyrna_enum_to_py(PointerRNA *ptr, PropertyRNA *prop, int val)
 		}
 		else {
 			EnumPropertyItem *enum_item;
-			bool free = false;
+			bool free;
 
 			/* don't throw error here, can't trust blender 100% to give the
 			 * right values, python code should not generate error for that */
@@ -1404,6 +1406,9 @@ static PyObject *pyrna_enum_to_py(PointerRNA *ptr, PropertyRNA *prop, int val)
 				ret = PyUnicode_FromString(enum_item->identifier);
 			}
 			else {
+				if (free) {
+					MEM_freeN(enum_item);
+				}
 				RNA_property_enum_items(NULL, ptr, prop, &enum_item, NULL, &free);
 
 				/* Do not print warning in case of DummyRNA_NULL_items, this one will never match any value... */
@@ -1640,7 +1645,7 @@ static int pyrna_py_to_prop(
 					param = PyObject_IsTrue(value);
 				}
 				else {
-					param = PyLong_AsLong(value);
+					param = PyC_Long_AsI32(value);
 
 					if (UNLIKELY(param & ~1)) {  /* only accept 0/1 */
 						param = -1;              /* error out below */
@@ -2076,10 +2081,10 @@ static int pyrna_py_to_prop_array_index(BPy_PropertyArrayRNA *self, int index, P
 		switch (RNA_property_type(prop)) {
 			case PROP_BOOLEAN:
 			{
-				int param = PyLong_AsLong(value);
+				int param = PyC_Long_AsBool(value);
 
-				if (param < 0 || param > 1) {
-					PyErr_SetString(PyExc_TypeError, "expected True/False or 0/1");
+				if (param == -1) {
+					/* error is set */
 					ret = -1;
 				}
 				else {
@@ -2089,7 +2094,7 @@ static int pyrna_py_to_prop_array_index(BPy_PropertyArrayRNA *self, int index, P
 			}
 			case PROP_INT:
 			{
-				int param = PyLong_AsLong(value);
+				int param = PyC_Long_AsI32(value);
 				if (param == -1 && PyErr_Occurred()) {
 					PyErr_SetString(PyExc_TypeError, "expected an int type");
 					ret = -1;
@@ -2709,7 +2714,7 @@ static PyObject *pyrna_prop_array_subscript(BPy_PropertyArrayRNA *self, PyObject
 		Py_ssize_t i = PyNumber_AsSsize_t(key, PyExc_IndexError);
 		if (i == -1 && PyErr_Occurred())
 			return NULL;
-		return pyrna_prop_array_subscript_int(self, PyLong_AsLong(key));
+		return pyrna_prop_array_subscript_int(self, i);
 	}
 	else if (PySlice_Check(key)) {
 		Py_ssize_t step = 1;
@@ -3704,6 +3709,110 @@ static PyObject *pyrna_struct_type_recast(BPy_StructRNA *self)
 	return pyrna_struct_CreatePyObject(&r_ptr);
 }
 
+/**
+ * \note Return value is borrowed, caller must incref.
+ */
+static PyObject *pyrna_struct_bl_rna_find_subclass_recursive(PyObject *cls, const char *id)
+{
+	PyObject *ret_test = NULL;
+	PyObject *subclasses = ((PyTypeObject *)cls)->tp_subclasses;
+	if (subclasses) {
+		/* Unfortunately we can't use the dict key because Python class names
+		 * don't match the bl_idname used internally. */
+		BLI_assert(PyDict_CheckExact(subclasses));
+		PyObject *key = NULL;
+		Py_ssize_t pos = 0;
+		PyObject *value = NULL;
+		while (PyDict_Next(subclasses, &pos, &key, &value)) {
+			BLI_assert(PyWeakref_CheckRef(value));
+			PyObject *subcls = PyWeakref_GET_OBJECT(value);
+			if (subcls != Py_None) {
+				BPy_StructRNA *py_srna = (BPy_StructRNA *)PyDict_GetItem(
+				        ((PyTypeObject *)subcls)->tp_dict, bpy_intern_str_bl_rna);
+				if (py_srna) {
+					StructRNA *srna = py_srna->ptr.data;
+					if (STREQ(id, RNA_struct_identifier(srna))) {
+						ret_test = subcls;
+						break;
+					}
+				}
+				ret_test = pyrna_struct_bl_rna_find_subclass_recursive(subcls, id);
+				if (ret_test) {
+					break;
+				}
+			}
+		}
+	}
+	return ret_test;
+}
+
+PyDoc_STRVAR(pyrna_struct_bl_rna_get_subclass_py_doc,
+".. classmethod:: bl_rna_get_subclass_py(id, default=None)\n"
+"\n"
+"   :arg id: The RNA type identifier.\n"
+"   :type id: string\n"
+"   :return: The class or default when not found.\n"
+"   :rtype: type\n"
+);
+static PyObject *pyrna_struct_bl_rna_get_subclass_py(PyObject *cls, PyObject *args)
+{
+	char *id;
+	PyObject *ret_default = Py_None;
+
+	if (!PyArg_ParseTuple(args, "s|O:bl_rna_get_subclass_py", &id, &ret_default)) {
+		return NULL;
+	}
+	PyObject *ret = pyrna_struct_bl_rna_find_subclass_recursive(cls, id);
+	if (ret == NULL) {
+		ret = ret_default;
+	}
+	return Py_INCREF_RET(ret);
+}
+
+PyDoc_STRVAR(pyrna_struct_bl_rna_get_subclass_doc,
+".. classmethod:: bl_rna_get_subclass(id, default=None)\n"
+"\n"
+"   :arg id: The RNA type identifier.\n"
+"   :type id: string\n"
+"   :return: The RNA type or default when not found.\n"
+"   :rtype: :class:`bpy.types.Struct` subclass\n"
+);
+static PyObject *pyrna_struct_bl_rna_get_subclass(PyObject *cls, PyObject *args)
+{
+	char *id;
+	PyObject *ret_default = Py_None;
+
+	if (!PyArg_ParseTuple(args, "s|O:bl_rna_get_subclass", &id, &ret_default)) {
+		return NULL;
+	}
+
+
+	const BPy_StructRNA *py_srna = (BPy_StructRNA *)PyDict_GetItem(((PyTypeObject *)cls)->tp_dict, bpy_intern_str_bl_rna);
+	if (py_srna == NULL) {
+		PyErr_SetString(PyExc_ValueError, "Not a registered class");
+		return NULL;
+
+	}
+	const StructRNA *srna_base = py_srna->ptr.data;
+
+	PointerRNA ptr;
+	if (srna_base == &RNA_Node) {
+		bNodeType *nt = nodeTypeFind(id);
+		if (nt) {
+			RNA_pointer_create(NULL, &RNA_Struct, nt->ext.srna, &ptr);
+			return pyrna_struct_CreatePyObject(&ptr);
+		}
+	}
+	else {
+		/* TODO, panels, menus etc. */
+		PyErr_Format(PyExc_ValueError, "Class type \"%.200s\" not supported",
+		             RNA_struct_identifier(srna_base));
+		return NULL;
+	}
+
+	return Py_INCREF_RET(ret_default);
+}
+
 static void pyrna_dir_members_py__add_keys(PyObject *list, PyObject *dict)
 {
 	PyObject *list_tmp;
@@ -5002,6 +5111,8 @@ static struct PyMethodDef pyrna_struct_methods[] = {
 	{"path_resolve", (PyCFunction)pyrna_struct_path_resolve, METH_VARARGS, pyrna_struct_path_resolve_doc},
 	{"path_from_id", (PyCFunction)pyrna_struct_path_from_id, METH_VARARGS, pyrna_struct_path_from_id_doc},
 	{"type_recast", (PyCFunction)pyrna_struct_type_recast, METH_NOARGS, pyrna_struct_type_recast_doc},
+	{"bl_rna_get_subclass_py", (PyCFunction) pyrna_struct_bl_rna_get_subclass_py, METH_VARARGS | METH_CLASS, pyrna_struct_bl_rna_get_subclass_py_doc},
+	{"bl_rna_get_subclass", (PyCFunction) pyrna_struct_bl_rna_get_subclass, METH_VARARGS | METH_CLASS, pyrna_struct_bl_rna_get_subclass_doc},
 	{"__dir__", (PyCFunction)pyrna_struct_dir, METH_NOARGS, NULL},
 
 	/* experimental */
@@ -6924,15 +7035,7 @@ static PyObject *pyrna_basetype_dir(BPy_BaseTypeRNA *self)
 	RNA_PROP_BEGIN (&self->ptr, itemptr, self->prop)
 	{
 		StructRNA *srna = itemptr.data;
-		StructRNA *srna_base = RNA_struct_base(itemptr.data);
-		/* skip own operators, these double up [#29666] */
-		if (srna_base == &RNA_Operator) {
-			/* do nothing */
-		}
-		else {
-			/* add to python list */
-			PyList_APPEND(ret, PyUnicode_FromString(RNA_struct_identifier(srna)));
-		}
+		PyList_APPEND(ret, PyUnicode_FromString(RNA_struct_identifier(srna)));
 	}
 	RNA_PROP_END;
 
diff --git a/source/blender/python/intern/bpy_rna_array.c b/source/blender/python/intern/bpy_rna_array.c
index 38931cd85de..3e147d29c90 100644
--- a/source/blender/python/intern/bpy_rna_array.c
+++ b/source/blender/python/intern/bpy_rna_array.c
@@ -38,6 +38,8 @@
 
 #include "RNA_access.h"
 
+#include "../generic/py_capi_utils.h"
+
 #define USE_MATHUTILS
 
 #ifdef USE_MATHUTILS
@@ -550,7 +552,7 @@ static void py_to_float(const struct ItemConvertArgData *arg, PyObject *py, char
 static void py_to_int(const struct ItemConvertArgData *arg, PyObject *py, char *data)
 {
 	const int *range = arg->int_data.range;
-	int value = (int)PyLong_AsLong(py);
+	int value = PyC_Long_AsI32(py);
 	CLAMP(value, range[0], range[1]);
 	*(int *)data = value;
 }
diff --git a/source/blender/python/intern/bpy_rna_driver.c b/source/blender/python/intern/bpy_rna_driver.c
index b4c0de51c04..1135ba121e3 100644
--- a/source/blender/python/intern/bpy_rna_driver.c
+++ b/source/blender/python/intern/bpy_rna_driver.c
@@ -63,7 +63,15 @@ PyObject *pyrna_driver_get_variable_value(
 			}
 			else {
 				/* object & property */
-				driver_arg = pyrna_prop_to_py(&ptr, prop);
+				PropertyType type = RNA_property_type(prop);
+				if (type == PROP_ENUM) {
+					/* Note that enum's are converted to strings by default,
+					 * we want to avoid that, see: T52213 */
+					driver_arg = PyLong_FromLong(RNA_property_enum_get(&ptr, prop));
+				}
+				else {
+					driver_arg = pyrna_prop_to_py(&ptr, prop);
+				}
 			}
 		}
 		else {
diff --git a/source/blender/python/intern/gpu_offscreen.c b/source/blender/python/intern/gpu_offscreen.c
index 7711ce18bd0..3c340d14e3f 100644
--- a/source/blender/python/intern/gpu_offscreen.c
+++ b/source/blender/python/intern/gpu_offscreen.c
@@ -144,36 +144,6 @@ static PyObject *pygpu_offscreen_unbind(BPy_GPUOffScreen *self, PyObject *args,
 	Py_RETURN_NONE;
 }
 
-/**
- * Use with PyArg_ParseTuple's "O&" formatting.
- */
-static int pygpu_offscreen_check_matrix(PyObject *o, void *p)
-{
-	MatrixObject **pymat_p = p;
-	MatrixObject  *pymat = (MatrixObject *)o;
-
-	if (!MatrixObject_Check(pymat)) {
-		PyErr_Format(PyExc_TypeError,
-		             "expected a mathutils.Matrix, not a %.200s",
-		             Py_TYPE(o)->tp_name);
-		return 0;
-	}
-
-	if (BaseMath_ReadCallback(pymat) == -1) {
-		return 0;
-	}
-
-	if ((pymat->num_col != 4) ||
-	    (pymat->num_row != 4))
-	{
-		PyErr_SetString(PyExc_ValueError, "matrix must be 4x4");
-		return 0;
-	}
-
-	*pymat_p = pymat;
-	return 1;
-}
-
 PyDoc_STRVAR(pygpu_offscreen_draw_view3d_doc,
 "draw_view3d(scene, view3d, region, modelview_matrix, projection_matrix)\n"
 "\n"
@@ -209,8 +179,8 @@ static PyObject *pygpu_offscreen_draw_view3d(BPy_GPUOffScreen *self, PyObject *a
 	if (!PyArg_ParseTupleAndKeywords(
 	        args, kwds, "OOOO&O&:draw_view3d", (char **)(kwlist),
 	        &py_scene, &py_view3d, &py_region,
-	        pygpu_offscreen_check_matrix, &py_mat_projection,
-	        pygpu_offscreen_check_matrix, &py_mat_modelview) ||
+	        Matrix_Parse4x4, &py_mat_projection,
+	        Matrix_Parse4x4, &py_mat_modelview) ||
 	    (!(scene    = PyC_RNA_AsPointer(py_scene, "Scene")) ||
 	     !(v3d      = PyC_RNA_AsPointer(py_view3d, "SpaceView3D")) ||
 	     !(ar       = PyC_RNA_AsPointer(py_region, "Region"))))
diff --git a/source/blender/python/mathutils/mathutils.c b/source/blender/python/mathutils/mathutils.c
index 1afb1d7be90..96ae0a9e50f 100644
--- a/source/blender/python/mathutils/mathutils.c
+++ b/source/blender/python/mathutils/mathutils.c
@@ -554,8 +554,8 @@ char BaseMathObject_freeze_doc[] =
 ;
 PyObject *BaseMathObject_freeze(BaseMathObject *self)
 {
-	if (self->flag & BASE_MATH_FLAG_IS_WRAP) {
-		PyErr_SetString(PyExc_TypeError, "Cannot freeze wrapped data");
+	if ((self->flag & BASE_MATH_FLAG_IS_WRAP) || (self->cb_user != NULL)) {
+		PyErr_SetString(PyExc_TypeError, "Cannot freeze wrapped/owned data");
 		return NULL;
 	}
 
diff --git a/source/blender/python/mathutils/mathutils.h b/source/blender/python/mathutils/mathutils.h
index 6ac75565c66..d1fb6dcdb82 100644
--- a/source/blender/python/mathutils/mathutils.h
+++ b/source/blender/python/mathutils/mathutils.h
@@ -41,9 +41,18 @@ extern char BaseMathObject_owner_doc[];
 	(struct_name *)((base_type ? (base_type)->tp_alloc(base_type, 0) : _PyObject_GC_New(&(root_type))));
 
 
-/* BaseMathObject.flag */
+/** BaseMathObject.flag */
 enum {
+	/**
+	 * Do not own the memory used in this vector,
+	 * \note This is error prone if the memory may be freed while this vector is in use.
+	 * Prefer using callbacks where possible, see: #Mathutils_RegisterCallback
+	 */
 	BASE_MATH_FLAG_IS_WRAP    = (1 << 0),
+	/**
+	 * Prevent changes to the vector so it can be used as a set or dictionary key for example.
+	 * (typical use cases for tuple).
+	 */
 	BASE_MATH_FLAG_IS_FROZEN  = (1 << 1),
 };
 #define BASE_MATH_FLAG_DEFAULT 0
diff --git a/source/blender/python/mathutils/mathutils_Matrix.c b/source/blender/python/mathutils/mathutils_Matrix.c
index e368e8871f3..2578b19d5ec 100644
--- a/source/blender/python/mathutils/mathutils_Matrix.c
+++ b/source/blender/python/mathutils/mathutils_Matrix.c
@@ -2914,6 +2914,73 @@ PyObject *Matrix_CreatePyObject_cb(PyObject *cb_user,
 	return (PyObject *) self;
 }
 
+/**
+ * Use with PyArg_ParseTuple's "O&" formatting.
+ */
+static bool Matrix_ParseCheck(MatrixObject *pymat)
+{
+	if (!MatrixObject_Check(pymat)) {
+		PyErr_Format(PyExc_TypeError,
+		             "expected a mathutils.Matrix, not a %.200s",
+		             Py_TYPE(pymat)->tp_name);
+		return 0;
+	}
+	/* sets error */
+	if (BaseMath_ReadCallback(pymat) == -1) {
+		return 0;
+	}
+	return 1;
+}
+
+int Matrix_ParseAny(PyObject *o, void *p)
+{
+	MatrixObject **pymat_p = p;
+	MatrixObject  *pymat = (MatrixObject *)o;
+
+	if (!Matrix_ParseCheck(pymat)) {
+		return 0;
+	}
+	*pymat_p = pymat;
+	return 1;
+}
+
+int Matrix_Parse3x3(PyObject *o, void *p)
+{
+	MatrixObject **pymat_p = p;
+	MatrixObject  *pymat = (MatrixObject *)o;
+
+	if (!Matrix_ParseCheck(pymat)) {
+		return 0;
+	}
+	if ((pymat->num_col != 3) ||
+	    (pymat->num_row != 3))
+	{
+		PyErr_SetString(PyExc_ValueError, "matrix must be 3x3");
+		return 0;
+	}
+
+	*pymat_p = pymat;
+	return 1;
+}
+
+int Matrix_Parse4x4(PyObject *o, void *p)
+{
+	MatrixObject **pymat_p = p;
+	MatrixObject  *pymat = (MatrixObject *)o;
+
+	if (!Matrix_ParseCheck(pymat)) {
+		return 0;
+	}
+	if ((pymat->num_col != 4) ||
+	    (pymat->num_row != 4))
+	{
+		PyErr_SetString(PyExc_ValueError, "matrix must be 4x4");
+		return 0;
+	}
+
+	*pymat_p = pymat;
+	return 1;
+}
 
 /* ----------------------------------------------------------------------------
  * special type for alternate access */
diff --git a/source/blender/python/mathutils/mathutils_Matrix.h b/source/blender/python/mathutils/mathutils_Matrix.h
index 542a0e349c7..9c84716d307 100644
--- a/source/blender/python/mathutils/mathutils_Matrix.h
+++ b/source/blender/python/mathutils/mathutils_Matrix.h
@@ -77,6 +77,11 @@ PyObject *Matrix_CreatePyObject_cb(
         unsigned char cb_type, unsigned char cb_subtype
         ) ATTR_WARN_UNUSED_RESULT;
 
+/* PyArg_ParseTuple's "O&" formatting helpers. */
+int Matrix_ParseAny(PyObject *o, void *p);
+int Matrix_Parse3x3(PyObject *o, void *p);
+int Matrix_Parse4x4(PyObject *o, void *p);
+
 extern unsigned char mathutils_matrix_row_cb_index; /* default */
 extern unsigned char mathutils_matrix_col_cb_index;
 extern unsigned char mathutils_matrix_translation_cb_index;
diff --git a/source/blender/python/mathutils/mathutils_Vector.c b/source/blender/python/mathutils/mathutils_Vector.c
index afc8a30a6b5..65450505e08 100644
--- a/source/blender/python/mathutils/mathutils_Vector.c
+++ b/source/blender/python/mathutils/mathutils_Vector.c
@@ -32,10 +32,17 @@
 #include "BLI_math.h"
 #include "BLI_utildefines.h"
 
+#include "../generic/py_capi_utils.h"
+
 #ifndef MATH_STANDALONE
 #  include "BLI_dynstr.h"
 #endif
 
+/**
+ * Higher dimensions are supported, for many common operations
+ * (dealing with vector/matrix multiply or handling as 3D locations)
+ * stack memory is used with a fixed size - defined here.
+ */
 #define MAX_DIMENSIONS 4
 
 /* Swizzle axes get packed into a single value that is used as a closure. Each
@@ -50,7 +57,8 @@ static PyObject *Vector_deepcopy(VectorObject *self, PyObject *args);
 static PyObject *Vector_to_tuple_ext(VectorObject *self, int ndigits);
 static int row_vector_multiplication(float rvec[MAX_DIMENSIONS], VectorObject *vec, MatrixObject *mat);
 
-/* Supports 2D, 3D, and 4D vector objects both int and float values
+/**
+ * Supports 2D, 3D, and 4D vector objects both int and float values
  * accepted. Mixed float and int values accepted. Ints are parsed to float
  */
 static PyObject *Vector_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
@@ -403,7 +411,7 @@ static PyObject *Vector_resize(VectorObject *self, PyObject *value)
 		return NULL;
 	}
 
-	if ((size = PyLong_AsLong(value)) == -1) {
+	if ((size = PyC_Long_AsI32(value)) == -1) {
 		PyErr_SetString(PyExc_TypeError,
 		                "Vector.resize(size): "
 		                "expected size argument to be an integer");
@@ -836,9 +844,11 @@ static PyObject *Vector_orthogonal(VectorObject *self)
 }
 
 
-/*
- * Vector.reflect(mirror): return a reflected vector on the mirror normal
- *  vec - ((2 * DotVecs(vec, mirror)) * mirror)
+/**
+ * Vector.reflect(mirror): return a reflected vector on the mirror normal.
+ * <pre>
+ *  vec - ((2 * dot(vec, mirror)) * mirror)
+ * </pre>
  */
 PyDoc_STRVAR(Vector_reflect_doc,
 ".. method:: reflect(mirror)\n"
@@ -1644,13 +1654,16 @@ static PyObject *Vector_isub(PyObject *v1, PyObject *v2)
  * multiplication */
 
 
-/* COLUMN VECTOR Multiplication (Matrix X Vector)
+/**
+ *  column vector multiplication (Matrix * Vector)
+ * <pre>
  * [1][4][7]   [a]
  * [2][5][8] * [b]
  * [3][6][9]   [c]
+ * </pre>
  *
- * note: vector/matrix multiplication IS NOT COMMUTATIVE!!!!
- * note: assume read callbacks have been done first.
+ * \note Vector/Matrix multiplication is not commutative.
+ * \note Assume read callbacks have been done first.
  */
 int column_vector_multiplication(float r_vec[MAX_DIMENSIONS], VectorObject *vec, MatrixObject *mat)
 {
@@ -2199,9 +2212,67 @@ static PyObject *Vector_length_squared_get(VectorObject *self, void *UNUSED(clos
 	return PyFloat_FromDouble(dot_vn_vn(self->vec, self->vec, self->size));
 }
 
-/* Get a new Vector according to the provided swizzle. This function has little
- * error checking, as we are in control of the inputs: the closure is set by us
- * in Vector_createSwizzleGetSeter. */
+
+/**
+ * Python script used to make swizzle array:
+ *
+ * \code{.py}
+ * SWIZZLE_BITS_PER_AXIS = 3
+ * SWIZZLE_VALID_AXIS = 0x4
+ *
+ * axis_dict = {}
+ * axis_pos = {'x': 0, 'y': 1, 'z': 2, 'w': 3}
+ * axises = 'xyzw'
+ * while len(axises) >= 2:
+ *     for axis_0 in axises:
+ *         axis_0_pos = axis_pos[axis_0]
+ *         for axis_1 in axises:
+ *             axis_1_pos = axis_pos[axis_1]
+ *             axis_dict[axis_0 + axis_1] = (
+ *                 '((%s | SWIZZLE_VALID_AXIS) | '
+ *                 '((%s | SWIZZLE_VALID_AXIS) << SWIZZLE_BITS_PER_AXIS))' %
+ *                 (axis_0_pos, axis_1_pos))
+ *             if len(axises) > 2:
+ *                 for axis_2 in axises:
+ *                     axis_2_pos = axis_pos[axis_2]
+ *                     axis_dict[axis_0 + axis_1 + axis_2] = (
+ *                         '((%s | SWIZZLE_VALID_AXIS) | '
+ *                         '((%s | SWIZZLE_VALID_AXIS) << SWIZZLE_BITS_PER_AXIS) | '
+ *                         '((%s | SWIZZLE_VALID_AXIS) << (SWIZZLE_BITS_PER_AXIS * 2)))' %
+ *                         (axis_0_pos, axis_1_pos, axis_2_pos))
+ *                     if len(axises) > 3:
+ *                         for axis_3 in axises:
+ *                             axis_3_pos = axis_pos[axis_3]
+ *                             axis_dict[axis_0 + axis_1 + axis_2 + axis_3] = (
+ *                                 '((%s | SWIZZLE_VALID_AXIS) | '
+ *                                 '((%s | SWIZZLE_VALID_AXIS) << SWIZZLE_BITS_PER_AXIS) | '
+ *                                 '((%s | SWIZZLE_VALID_AXIS) << (SWIZZLE_BITS_PER_AXIS * 2)) | '
+ *                                 '((%s | SWIZZLE_VALID_AXIS) << (SWIZZLE_BITS_PER_AXIS * 3)))  ' %
+ *                                 (axis_0_pos, axis_1_pos, axis_2_pos, axis_3_pos))
+ *
+ *     axises = axises[:-1]
+ *
+ *
+ * items = list(axis_dict.items())
+ * items.sort(key=lambda a: a[0].replace('x', '0').replace('y', '1').replace('z', '2').replace('w', '3'))
+ *
+ * unique = set()
+ * for key, val in items:
+ *     num = eval(val)
+ *     set_str = 'Vector_swizzle_set' if (len(set(key)) == len(key)) else 'NULL'
+ *     key_args = ', '.join(["'%s'" % c for c in key.upper()])
+ *     print('\t{(char *)"%s", %s(getter)Vector_swizzle_get, (setter)%s, NULL, SWIZZLE%d(%s)},' %
+ *           (key, (' ' * (4 - len(key))), set_str, len(key), key_args))
+ *     unique.add(num)
+ *
+ * if len(unique) != len(items):
+ *     print("ERROR, duplicate values found")
+ * \endcode
+ */
+
+/**
+ * Get a new Vector according to the provided swizzle bits.
+ */
 static PyObject *Vector_swizzle_get(VectorObject *self, void *closure)
 {
 	size_t axis_to;
@@ -2232,7 +2303,8 @@ static PyObject *Vector_swizzle_get(VectorObject *self, void *closure)
 	return Vector_CreatePyObject(vec, axis_to, Py_TYPE(self));
 }
 
-/* Set the items of this vector using a swizzle.
+/**
+ *  Set the items of this vector using a swizzle.
  * - If value is a vector or list this operates like an array copy, except that
  *   the destination is effectively re-ordered as defined by the swizzle. At
  *   most min(len(source), len(dest)) values will be copied.
@@ -2240,8 +2312,8 @@ static PyObject *Vector_swizzle_get(VectorObject *self, void *closure)
  * - If an axis appears more than once in the swizzle, the final occurrence is
  *   the one that determines its value.
  *
- * Returns 0 on success and -1 on failure. On failure, the vector will be
- * unchanged. */
+ * \return 0 on success and -1 on failure. On failure, the vector will be unchanged.
+ */
 static int Vector_swizzle_set(VectorObject *self, PyObject *value, void *closure)
 {
 	size_t size_from;
@@ -2324,19 +2396,14 @@ static int Vector_swizzle_set(VectorObject *self, PyObject *value, void *closure
 		return 0;
 }
 
-/* XYZW -> 0123 */
-#define AXIS_FROM_CHAR(a) (((a) != 'W') ? ((a) - 'X') : 3)
-
-#define _VA_SWIZZLE_1(a) ( \
-	((AXIS_FROM_CHAR(a) | SWIZZLE_VALID_AXIS)))
-#define _VA_SWIZZLE_2(a, b) (_VA_SWIZZLE_1(a) | \
-	((AXIS_FROM_CHAR(b) | SWIZZLE_VALID_AXIS) << (SWIZZLE_BITS_PER_AXIS)))
-#define _VA_SWIZZLE_3(a, b, c) (_VA_SWIZZLE_2(a, b) | \
-	((AXIS_FROM_CHAR(c) | SWIZZLE_VALID_AXIS) << (SWIZZLE_BITS_PER_AXIS * 2)))
-#define _VA_SWIZZLE_4(a, b, c, d) (_VA_SWIZZLE_3(a, b, c) | \
-	((AXIS_FROM_CHAR(d) | SWIZZLE_VALID_AXIS) << (SWIZZLE_BITS_PER_AXIS * 3)))
+#define _SWIZZLE1(a)                                 ((a) | SWIZZLE_VALID_AXIS)
+#define _SWIZZLE2(a, b)       (_SWIZZLE1(a)       | (((b) | SWIZZLE_VALID_AXIS) << (SWIZZLE_BITS_PER_AXIS)))
+#define _SWIZZLE3(a, b, c)    (_SWIZZLE2(a, b)    | (((c) | SWIZZLE_VALID_AXIS) << (SWIZZLE_BITS_PER_AXIS * 2)))
+#define _SWIZZLE4(a, b, c, d) (_SWIZZLE3(a, b, c) | (((d) | SWIZZLE_VALID_AXIS) << (SWIZZLE_BITS_PER_AXIS * 3)))
 
-#define SWIZZLE(...) SET_INT_IN_POINTER(VA_NARGS_CALL_OVERLOAD(_VA_SWIZZLE_, __VA_ARGS__))
+#define SWIZZLE2(a, b)       SET_INT_IN_POINTER(_SWIZZLE2(a, b))
+#define SWIZZLE3(a, b, c)    SET_INT_IN_POINTER(_SWIZZLE3(a, b, c))
+#define SWIZZLE4(a, b, c, d) SET_INT_IN_POINTER(_SWIZZLE4(a, b, c, d))
 
 /*****************************************************************************/
 /* Python attributes get/set structure:                                      */
@@ -2353,416 +2420,366 @@ static PyGetSetDef Vector_getseters[] = {
 	{(char *)"is_frozen",  (getter)BaseMathObject_is_frozen_get,  (setter)NULL, BaseMathObject_is_frozen_doc, NULL},
 	{(char *)"owner", (getter)BaseMathObject_owner_get, (setter)NULL, BaseMathObject_owner_doc, NULL},
 
-	/* autogenerated swizzle attrs, see python script below */
-	{(char *)"xx",   (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X')},
-	{(char *)"xxx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'X')},
-	{(char *)"xxxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'X', 'X')},
-	{(char *)"xxxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'X', 'Y')},
-	{(char *)"xxxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'X', 'Z')},
-	{(char *)"xxxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'X', 'W')},
-	{(char *)"xxy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'Y')},
-	{(char *)"xxyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'Y', 'X')},
-	{(char *)"xxyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'Y', 'Y')},
-	{(char *)"xxyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'Y', 'Z')},
-	{(char *)"xxyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'Y', 'W')},
-	{(char *)"xxz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'Z')},
-	{(char *)"xxzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'Z', 'X')},
-	{(char *)"xxzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'Z', 'Y')},
-	{(char *)"xxzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'Z', 'Z')},
-	{(char *)"xxzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'Z', 'W')},
-	{(char *)"xxw",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'W')},
-	{(char *)"xxwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'W', 'X')},
-	{(char *)"xxwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'W', 'Y')},
-	{(char *)"xxwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'W', 'Z')},
-	{(char *)"xxww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'X', 'W', 'W')},
-	{(char *)"xy",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('X', 'Y')},
-	{(char *)"xyx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'X')},
-	{(char *)"xyxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'X', 'X')},
-	{(char *)"xyxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'X', 'Y')},
-	{(char *)"xyxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'X', 'Z')},
-	{(char *)"xyxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'X', 'W')},
-	{(char *)"xyy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'Y')},
-	{(char *)"xyyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'Y', 'X')},
-	{(char *)"xyyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'Y', 'Y')},
-	{(char *)"xyyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'Y', 'Z')},
-	{(char *)"xyyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'Y', 'W')},
-	{(char *)"xyz",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('X', 'Y', 'Z')},
-	{(char *)"xyzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'Z', 'X')},
-	{(char *)"xyzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'Z', 'Y')},
-	{(char *)"xyzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'Z', 'Z')},
-	{(char *)"xyzw", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('X', 'Y', 'Z', 'W')},
-	{(char *)"xyw",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('X', 'Y', 'W')},
-	{(char *)"xywx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'W', 'X')},
-	{(char *)"xywy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'W', 'Y')},
-	{(char *)"xywz", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('X', 'Y', 'W', 'Z')},
-	{(char *)"xyww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Y', 'W', 'W')},
-	{(char *)"xz",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('X', 'Z')},
-	{(char *)"xzx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'X')},
-	{(char *)"xzxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'X', 'X')},
-	{(char *)"xzxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'X', 'Y')},
-	{(char *)"xzxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'X', 'Z')},
-	{(char *)"xzxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'X', 'W')},
-	{(char *)"xzy",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('X', 'Z', 'Y')},
-	{(char *)"xzyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'Y', 'X')},
-	{(char *)"xzyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'Y', 'Y')},
-	{(char *)"xzyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'Y', 'Z')},
-	{(char *)"xzyw", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('X', 'Z', 'Y', 'W')},
-	{(char *)"xzz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'Z')},
-	{(char *)"xzzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'Z', 'X')},
-	{(char *)"xzzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'Z', 'Y')},
-	{(char *)"xzzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'Z', 'Z')},
-	{(char *)"xzzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'Z', 'W')},
-	{(char *)"xzw",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('X', 'Z', 'W')},
-	{(char *)"xzwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'W', 'X')},
-	{(char *)"xzwy", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('X', 'Z', 'W', 'Y')},
-	{(char *)"xzwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'W', 'Z')},
-	{(char *)"xzww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'Z', 'W', 'W')},
-	{(char *)"xw",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('X', 'W')},
-	{(char *)"xwx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'X')},
-	{(char *)"xwxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'X', 'X')},
-	{(char *)"xwxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'X', 'Y')},
-	{(char *)"xwxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'X', 'Z')},
-	{(char *)"xwxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'X', 'W')},
-	{(char *)"xwy",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('X', 'W', 'Y')},
-	{(char *)"xwyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'Y', 'X')},
-	{(char *)"xwyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'Y', 'Y')},
-	{(char *)"xwyz", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('X', 'W', 'Y', 'Z')},
-	{(char *)"xwyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'Y', 'W')},
-	{(char *)"xwz",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('X', 'W', 'Z')},
-	{(char *)"xwzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'Z', 'X')},
-	{(char *)"xwzy", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('X', 'W', 'Z', 'Y')},
-	{(char *)"xwzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'Z', 'Z')},
-	{(char *)"xwzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'Z', 'W')},
-	{(char *)"xww",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'W')},
-	{(char *)"xwwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'W', 'X')},
-	{(char *)"xwwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'W', 'Y')},
-	{(char *)"xwwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'W', 'Z')},
-	{(char *)"xwww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('X', 'W', 'W', 'W')},
-	{(char *)"yx",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Y', 'X')},
-	{(char *)"yxx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'X')},
-	{(char *)"yxxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'X', 'X')},
-	{(char *)"yxxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'X', 'Y')},
-	{(char *)"yxxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'X', 'Z')},
-	{(char *)"yxxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'X', 'W')},
-	{(char *)"yxy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'Y')},
-	{(char *)"yxyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'Y', 'X')},
-	{(char *)"yxyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'Y', 'Y')},
-	{(char *)"yxyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'Y', 'Z')},
-	{(char *)"yxyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'Y', 'W')},
-	{(char *)"yxz",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Y', 'X', 'Z')},
-	{(char *)"yxzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'Z', 'X')},
-	{(char *)"yxzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'Z', 'Y')},
-	{(char *)"yxzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'Z', 'Z')},
-	{(char *)"yxzw", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Y', 'X', 'Z', 'W')},
-	{(char *)"yxw",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Y', 'X', 'W')},
-	{(char *)"yxwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'W', 'X')},
-	{(char *)"yxwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'W', 'Y')},
-	{(char *)"yxwz", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Y', 'X', 'W', 'Z')},
-	{(char *)"yxww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'X', 'W', 'W')},
-	{(char *)"yy",   (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y')},
-	{(char *)"yyx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'X')},
-	{(char *)"yyxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'X', 'X')},
-	{(char *)"yyxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'X', 'Y')},
-	{(char *)"yyxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'X', 'Z')},
-	{(char *)"yyxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'X', 'W')},
-	{(char *)"yyy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'Y')},
-	{(char *)"yyyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'Y', 'X')},
-	{(char *)"yyyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'Y', 'Y')},
-	{(char *)"yyyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'Y', 'Z')},
-	{(char *)"yyyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'Y', 'W')},
-	{(char *)"yyz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'Z')},
-	{(char *)"yyzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'Z', 'X')},
-	{(char *)"yyzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'Z', 'Y')},
-	{(char *)"yyzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'Z', 'Z')},
-	{(char *)"yyzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'Z', 'W')},
-	{(char *)"yyw",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'W')},
-	{(char *)"yywx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'W', 'X')},
-	{(char *)"yywy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'W', 'Y')},
-	{(char *)"yywz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'W', 'Z')},
-	{(char *)"yyww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Y', 'W', 'W')},
-	{(char *)"yz",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Y', 'Z')},
-	{(char *)"yzx",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Y', 'Z', 'X')},
-	{(char *)"yzxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'X', 'X')},
-	{(char *)"yzxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'X', 'Y')},
-	{(char *)"yzxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'X', 'Z')},
-	{(char *)"yzxw", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Y', 'Z', 'X', 'W')},
-	{(char *)"yzy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'Y')},
-	{(char *)"yzyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'Y', 'X')},
-	{(char *)"yzyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'Y', 'Y')},
-	{(char *)"yzyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'Y', 'Z')},
-	{(char *)"yzyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'Y', 'W')},
-	{(char *)"yzz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'Z')},
-	{(char *)"yzzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'Z', 'X')},
-	{(char *)"yzzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'Z', 'Y')},
-	{(char *)"yzzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'Z', 'Z')},
-	{(char *)"yzzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'Z', 'W')},
-	{(char *)"yzw",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Y', 'Z', 'W')},
-	{(char *)"yzwx", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Y', 'Z', 'W', 'X')},
-	{(char *)"yzwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'W', 'Y')},
-	{(char *)"yzwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'W', 'Z')},
-	{(char *)"yzww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'Z', 'W', 'W')},
-	{(char *)"yw",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Y', 'W')},
-	{(char *)"ywx",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Y', 'W', 'X')},
-	{(char *)"ywxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'X', 'X')},
-	{(char *)"ywxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'X', 'Y')},
-	{(char *)"ywxz", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Y', 'W', 'X', 'Z')},
-	{(char *)"ywxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'X', 'W')},
-	{(char *)"ywy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'Y')},
-	{(char *)"ywyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'Y', 'X')},
-	{(char *)"ywyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'Y', 'Y')},
-	{(char *)"ywyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'Y', 'Z')},
-	{(char *)"ywyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'Y', 'W')},
-	{(char *)"ywz",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Y', 'W', 'Z')},
-	{(char *)"ywzx", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Y', 'W', 'Z', 'X')},
-	{(char *)"ywzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'Z', 'Y')},
-	{(char *)"ywzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'Z', 'Z')},
-	{(char *)"ywzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'Z', 'W')},
-	{(char *)"yww",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'W')},
-	{(char *)"ywwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'W', 'X')},
-	{(char *)"ywwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'W', 'Y')},
-	{(char *)"ywwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'W', 'Z')},
-	{(char *)"ywww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Y', 'W', 'W', 'W')},
-	{(char *)"zx",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Z', 'X')},
-	{(char *)"zxx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'X')},
-	{(char *)"zxxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'X', 'X')},
-	{(char *)"zxxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'X', 'Y')},
-	{(char *)"zxxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'X', 'Z')},
-	{(char *)"zxxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'X', 'W')},
-	{(char *)"zxy",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Z', 'X', 'Y')},
-	{(char *)"zxyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'Y', 'X')},
-	{(char *)"zxyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'Y', 'Y')},
-	{(char *)"zxyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'Y', 'Z')},
-	{(char *)"zxyw", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Z', 'X', 'Y', 'W')},
-	{(char *)"zxz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'Z')},
-	{(char *)"zxzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'Z', 'X')},
-	{(char *)"zxzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'Z', 'Y')},
-	{(char *)"zxzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'Z', 'Z')},
-	{(char *)"zxzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'Z', 'W')},
-	{(char *)"zxw",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Z', 'X', 'W')},
-	{(char *)"zxwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'W', 'X')},
-	{(char *)"zxwy", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Z', 'X', 'W', 'Y')},
-	{(char *)"zxwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'W', 'Z')},
-	{(char *)"zxww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'X', 'W', 'W')},
-	{(char *)"zy",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Z', 'Y')},
-	{(char *)"zyx",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Z', 'Y', 'X')},
-	{(char *)"zyxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'X', 'X')},
-	{(char *)"zyxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'X', 'Y')},
-	{(char *)"zyxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'X', 'Z')},
-	{(char *)"zyxw", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Z', 'Y', 'X', 'W')},
-	{(char *)"zyy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'Y')},
-	{(char *)"zyyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'Y', 'X')},
-	{(char *)"zyyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'Y', 'Y')},
-	{(char *)"zyyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'Y', 'Z')},
-	{(char *)"zyyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'Y', 'W')},
-	{(char *)"zyz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'Z')},
-	{(char *)"zyzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'Z', 'X')},
-	{(char *)"zyzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'Z', 'Y')},
-	{(char *)"zyzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'Z', 'Z')},
-	{(char *)"zyzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'Z', 'W')},
-	{(char *)"zyw",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Z', 'Y', 'W')},
-	{(char *)"zywx", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Z', 'Y', 'W', 'X')},
-	{(char *)"zywy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'W', 'Y')},
-	{(char *)"zywz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'W', 'Z')},
-	{(char *)"zyww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Y', 'W', 'W')},
-	{(char *)"zz",   (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z')},
-	{(char *)"zzx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'X')},
-	{(char *)"zzxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'X', 'X')},
-	{(char *)"zzxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'X', 'Y')},
-	{(char *)"zzxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'X', 'Z')},
-	{(char *)"zzxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'X', 'W')},
-	{(char *)"zzy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'Y')},
-	{(char *)"zzyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'Y', 'X')},
-	{(char *)"zzyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'Y', 'Y')},
-	{(char *)"zzyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'Y', 'Z')},
-	{(char *)"zzyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'Y', 'W')},
-	{(char *)"zzz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'Z')},
-	{(char *)"zzzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'Z', 'X')},
-	{(char *)"zzzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'Z', 'Y')},
-	{(char *)"zzzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'Z', 'Z')},
-	{(char *)"zzzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'Z', 'W')},
-	{(char *)"zzw",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'W')},
-	{(char *)"zzwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'W', 'X')},
-	{(char *)"zzwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'W', 'Y')},
-	{(char *)"zzwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'W', 'Z')},
-	{(char *)"zzww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'Z', 'W', 'W')},
-	{(char *)"zw",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Z', 'W')},
-	{(char *)"zwx",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Z', 'W', 'X')},
-	{(char *)"zwxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'X', 'X')},
-	{(char *)"zwxy", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Z', 'W', 'X', 'Y')},
-	{(char *)"zwxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'X', 'Z')},
-	{(char *)"zwxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'X', 'W')},
-	{(char *)"zwy",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Z', 'W', 'Y')},
-	{(char *)"zwyx", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('Z', 'W', 'Y', 'X')},
-	{(char *)"zwyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'Y', 'Y')},
-	{(char *)"zwyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'Y', 'Z')},
-	{(char *)"zwyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'Y', 'W')},
-	{(char *)"zwz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'Z')},
-	{(char *)"zwzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'Z', 'X')},
-	{(char *)"zwzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'Z', 'Y')},
-	{(char *)"zwzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'Z', 'Z')},
-	{(char *)"zwzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'Z', 'W')},
-	{(char *)"zww",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'W')},
-	{(char *)"zwwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'W', 'X')},
-	{(char *)"zwwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'W', 'Y')},
-	{(char *)"zwwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'W', 'Z')},
-	{(char *)"zwww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('Z', 'W', 'W', 'W')},
-	{(char *)"wx",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('W', 'X')},
-	{(char *)"wxx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'X')},
-	{(char *)"wxxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'X', 'X')},
-	{(char *)"wxxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'X', 'Y')},
-	{(char *)"wxxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'X', 'Z')},
-	{(char *)"wxxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'X', 'W')},
-	{(char *)"wxy",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('W', 'X', 'Y')},
-	{(char *)"wxyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'Y', 'X')},
-	{(char *)"wxyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'Y', 'Y')},
-	{(char *)"wxyz", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('W', 'X', 'Y', 'Z')},
-	{(char *)"wxyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'Y', 'W')},
-	{(char *)"wxz",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('W', 'X', 'Z')},
-	{(char *)"wxzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'Z', 'X')},
-	{(char *)"wxzy", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('W', 'X', 'Z', 'Y')},
-	{(char *)"wxzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'Z', 'Z')},
-	{(char *)"wxzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'Z', 'W')},
-	{(char *)"wxw",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'W')},
-	{(char *)"wxwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'W', 'X')},
-	{(char *)"wxwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'W', 'Y')},
-	{(char *)"wxwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'W', 'Z')},
-	{(char *)"wxww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'X', 'W', 'W')},
-	{(char *)"wy",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('W', 'Y')},
-	{(char *)"wyx",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('W', 'Y', 'X')},
-	{(char *)"wyxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'X', 'X')},
-	{(char *)"wyxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'X', 'Y')},
-	{(char *)"wyxz", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('W', 'Y', 'X', 'Z')},
-	{(char *)"wyxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'X', 'W')},
-	{(char *)"wyy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'Y')},
-	{(char *)"wyyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'Y', 'X')},
-	{(char *)"wyyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'Y', 'Y')},
-	{(char *)"wyyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'Y', 'Z')},
-	{(char *)"wyyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'Y', 'W')},
-	{(char *)"wyz",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('W', 'Y', 'Z')},
-	{(char *)"wyzx", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('W', 'Y', 'Z', 'X')},
-	{(char *)"wyzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'Z', 'Y')},
-	{(char *)"wyzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'Z', 'Z')},
-	{(char *)"wyzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'Z', 'W')},
-	{(char *)"wyw",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'W')},
-	{(char *)"wywx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'W', 'X')},
-	{(char *)"wywy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'W', 'Y')},
-	{(char *)"wywz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'W', 'Z')},
-	{(char *)"wyww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Y', 'W', 'W')},
-	{(char *)"wz",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('W', 'Z')},
-	{(char *)"wzx",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('W', 'Z', 'X')},
-	{(char *)"wzxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'X', 'X')},
-	{(char *)"wzxy", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('W', 'Z', 'X', 'Y')},
-	{(char *)"wzxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'X', 'Z')},
-	{(char *)"wzxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'X', 'W')},
-	{(char *)"wzy",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('W', 'Z', 'Y')},
-	{(char *)"wzyx", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE('W', 'Z', 'Y', 'X')},
-	{(char *)"wzyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'Y', 'Y')},
-	{(char *)"wzyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'Y', 'Z')},
-	{(char *)"wzyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'Y', 'W')},
-	{(char *)"wzz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'Z')},
-	{(char *)"wzzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'Z', 'X')},
-	{(char *)"wzzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'Z', 'Y')},
-	{(char *)"wzzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'Z', 'Z')},
-	{(char *)"wzzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'Z', 'W')},
-	{(char *)"wzw",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'W')},
-	{(char *)"wzwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'W', 'X')},
-	{(char *)"wzwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'W', 'Y')},
-	{(char *)"wzwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'W', 'Z')},
-	{(char *)"wzww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'Z', 'W', 'W')},
-	{(char *)"ww",   (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W')},
-	{(char *)"wwx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'X')},
-	{(char *)"wwxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'X', 'X')},
-	{(char *)"wwxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'X', 'Y')},
-	{(char *)"wwxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'X', 'Z')},
-	{(char *)"wwxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'X', 'W')},
-	{(char *)"wwy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'Y')},
-	{(char *)"wwyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'Y', 'X')},
-	{(char *)"wwyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'Y', 'Y')},
-	{(char *)"wwyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'Y', 'Z')},
-	{(char *)"wwyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'Y', 'W')},
-	{(char *)"wwz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'Z')},
-	{(char *)"wwzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'Z', 'X')},
-	{(char *)"wwzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'Z', 'Y')},
-	{(char *)"wwzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'Z', 'Z')},
-	{(char *)"wwzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'Z', 'W')},
-	{(char *)"www",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'W')},
-	{(char *)"wwwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'W', 'X')},
-	{(char *)"wwwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'W', 'Y')},
-	{(char *)"wwwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'W', 'Z')},
-	{(char *)"wwww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE('W', 'W', 'W', 'W')},
+	/* autogenerated swizzle attrs, see Python script above */
+	{(char *)"xx",   (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE2(0, 0)},
+	{(char *)"xxx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(0, 0, 0)},
+	{(char *)"xxxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 0, 0)},
+	{(char *)"xxxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 0, 1)},
+	{(char *)"xxxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 0, 2)},
+	{(char *)"xxxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 0, 3)},
+	{(char *)"xxy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(0, 0, 1)},
+	{(char *)"xxyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 1, 0)},
+	{(char *)"xxyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 1, 1)},
+	{(char *)"xxyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 1, 2)},
+	{(char *)"xxyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 1, 3)},
+	{(char *)"xxz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(0, 0, 2)},
+	{(char *)"xxzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 2, 0)},
+	{(char *)"xxzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 2, 1)},
+	{(char *)"xxzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 2, 2)},
+	{(char *)"xxzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 2, 3)},
+	{(char *)"xxw",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(0, 0, 3)},
+	{(char *)"xxwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 3, 0)},
+	{(char *)"xxwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 3, 1)},
+	{(char *)"xxwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 3, 2)},
+	{(char *)"xxww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 0, 3, 3)},
+	{(char *)"xy",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE2(0, 1)},
+	{(char *)"xyx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(0, 1, 0)},
+	{(char *)"xyxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 1, 0, 0)},
+	{(char *)"xyxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 1, 0, 1)},
+	{(char *)"xyxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 1, 0, 2)},
+	{(char *)"xyxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 1, 0, 3)},
+	{(char *)"xyy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(0, 1, 1)},
+	{(char *)"xyyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 1, 1, 0)},
+	{(char *)"xyyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 1, 1, 1)},
+	{(char *)"xyyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 1, 1, 2)},
+	{(char *)"xyyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 1, 1, 3)},
+	{(char *)"xyz",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(0, 1, 2)},
+	{(char *)"xyzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 1, 2, 0)},
+	{(char *)"xyzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 1, 2, 1)},
+	{(char *)"xyzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 1, 2, 2)},
+	{(char *)"xyzw", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(0, 1, 2, 3)},
+	{(char *)"xyw",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(0, 1, 3)},
+	{(char *)"xywx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 1, 3, 0)},
+	{(char *)"xywy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 1, 3, 1)},
+	{(char *)"xywz", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(0, 1, 3, 2)},
+	{(char *)"xyww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 1, 3, 3)},
+	{(char *)"xz",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE2(0, 2)},
+	{(char *)"xzx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(0, 2, 0)},
+	{(char *)"xzxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 2, 0, 0)},
+	{(char *)"xzxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 2, 0, 1)},
+	{(char *)"xzxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 2, 0, 2)},
+	{(char *)"xzxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 2, 0, 3)},
+	{(char *)"xzy",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(0, 2, 1)},
+	{(char *)"xzyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 2, 1, 0)},
+	{(char *)"xzyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 2, 1, 1)},
+	{(char *)"xzyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 2, 1, 2)},
+	{(char *)"xzyw", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(0, 2, 1, 3)},
+	{(char *)"xzz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(0, 2, 2)},
+	{(char *)"xzzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 2, 2, 0)},
+	{(char *)"xzzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 2, 2, 1)},
+	{(char *)"xzzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 2, 2, 2)},
+	{(char *)"xzzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 2, 2, 3)},
+	{(char *)"xzw",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(0, 2, 3)},
+	{(char *)"xzwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 2, 3, 0)},
+	{(char *)"xzwy", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(0, 2, 3, 1)},
+	{(char *)"xzwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 2, 3, 2)},
+	{(char *)"xzww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 2, 3, 3)},
+	{(char *)"xw",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE2(0, 3)},
+	{(char *)"xwx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(0, 3, 0)},
+	{(char *)"xwxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 3, 0, 0)},
+	{(char *)"xwxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 3, 0, 1)},
+	{(char *)"xwxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 3, 0, 2)},
+	{(char *)"xwxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 3, 0, 3)},
+	{(char *)"xwy",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(0, 3, 1)},
+	{(char *)"xwyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 3, 1, 0)},
+	{(char *)"xwyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 3, 1, 1)},
+	{(char *)"xwyz", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(0, 3, 1, 2)},
+	{(char *)"xwyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 3, 1, 3)},
+	{(char *)"xwz",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(0, 3, 2)},
+	{(char *)"xwzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 3, 2, 0)},
+	{(char *)"xwzy", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(0, 3, 2, 1)},
+	{(char *)"xwzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 3, 2, 2)},
+	{(char *)"xwzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 3, 2, 3)},
+	{(char *)"xww",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(0, 3, 3)},
+	{(char *)"xwwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 3, 3, 0)},
+	{(char *)"xwwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 3, 3, 1)},
+	{(char *)"xwwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 3, 3, 2)},
+	{(char *)"xwww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(0, 3, 3, 3)},
+	{(char *)"yx",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE2(1, 0)},
+	{(char *)"yxx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(1, 0, 0)},
+	{(char *)"yxxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 0, 0, 0)},
+	{(char *)"yxxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 0, 0, 1)},
+	{(char *)"yxxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 0, 0, 2)},
+	{(char *)"yxxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 0, 0, 3)},
+	{(char *)"yxy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(1, 0, 1)},
+	{(char *)"yxyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 0, 1, 0)},
+	{(char *)"yxyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 0, 1, 1)},
+	{(char *)"yxyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 0, 1, 2)},
+	{(char *)"yxyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 0, 1, 3)},
+	{(char *)"yxz",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(1, 0, 2)},
+	{(char *)"yxzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 0, 2, 0)},
+	{(char *)"yxzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 0, 2, 1)},
+	{(char *)"yxzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 0, 2, 2)},
+	{(char *)"yxzw", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(1, 0, 2, 3)},
+	{(char *)"yxw",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(1, 0, 3)},
+	{(char *)"yxwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 0, 3, 0)},
+	{(char *)"yxwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 0, 3, 1)},
+	{(char *)"yxwz", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(1, 0, 3, 2)},
+	{(char *)"yxww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 0, 3, 3)},
+	{(char *)"yy",   (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE2(1, 1)},
+	{(char *)"yyx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(1, 1, 0)},
+	{(char *)"yyxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 0, 0)},
+	{(char *)"yyxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 0, 1)},
+	{(char *)"yyxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 0, 2)},
+	{(char *)"yyxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 0, 3)},
+	{(char *)"yyy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(1, 1, 1)},
+	{(char *)"yyyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 1, 0)},
+	{(char *)"yyyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 1, 1)},
+	{(char *)"yyyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 1, 2)},
+	{(char *)"yyyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 1, 3)},
+	{(char *)"yyz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(1, 1, 2)},
+	{(char *)"yyzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 2, 0)},
+	{(char *)"yyzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 2, 1)},
+	{(char *)"yyzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 2, 2)},
+	{(char *)"yyzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 2, 3)},
+	{(char *)"yyw",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(1, 1, 3)},
+	{(char *)"yywx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 3, 0)},
+	{(char *)"yywy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 3, 1)},
+	{(char *)"yywz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 3, 2)},
+	{(char *)"yyww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 1, 3, 3)},
+	{(char *)"yz",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE2(1, 2)},
+	{(char *)"yzx",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(1, 2, 0)},
+	{(char *)"yzxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 2, 0, 0)},
+	{(char *)"yzxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 2, 0, 1)},
+	{(char *)"yzxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 2, 0, 2)},
+	{(char *)"yzxw", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(1, 2, 0, 3)},
+	{(char *)"yzy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(1, 2, 1)},
+	{(char *)"yzyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 2, 1, 0)},
+	{(char *)"yzyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 2, 1, 1)},
+	{(char *)"yzyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 2, 1, 2)},
+	{(char *)"yzyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 2, 1, 3)},
+	{(char *)"yzz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(1, 2, 2)},
+	{(char *)"yzzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 2, 2, 0)},
+	{(char *)"yzzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 2, 2, 1)},
+	{(char *)"yzzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 2, 2, 2)},
+	{(char *)"yzzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 2, 2, 3)},
+	{(char *)"yzw",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(1, 2, 3)},
+	{(char *)"yzwx", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(1, 2, 3, 0)},
+	{(char *)"yzwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 2, 3, 1)},
+	{(char *)"yzwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 2, 3, 2)},
+	{(char *)"yzww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 2, 3, 3)},
+	{(char *)"yw",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE2(1, 3)},
+	{(char *)"ywx",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(1, 3, 0)},
+	{(char *)"ywxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 3, 0, 0)},
+	{(char *)"ywxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 3, 0, 1)},
+	{(char *)"ywxz", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(1, 3, 0, 2)},
+	{(char *)"ywxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 3, 0, 3)},
+	{(char *)"ywy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(1, 3, 1)},
+	{(char *)"ywyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 3, 1, 0)},
+	{(char *)"ywyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 3, 1, 1)},
+	{(char *)"ywyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 3, 1, 2)},
+	{(char *)"ywyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 3, 1, 3)},
+	{(char *)"ywz",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(1, 3, 2)},
+	{(char *)"ywzx", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(1, 3, 2, 0)},
+	{(char *)"ywzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 3, 2, 1)},
+	{(char *)"ywzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 3, 2, 2)},
+	{(char *)"ywzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 3, 2, 3)},
+	{(char *)"yww",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(1, 3, 3)},
+	{(char *)"ywwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 3, 3, 0)},
+	{(char *)"ywwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 3, 3, 1)},
+	{(char *)"ywwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 3, 3, 2)},
+	{(char *)"ywww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(1, 3, 3, 3)},
+	{(char *)"zx",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE2(2, 0)},
+	{(char *)"zxx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(2, 0, 0)},
+	{(char *)"zxxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 0, 0, 0)},
+	{(char *)"zxxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 0, 0, 1)},
+	{(char *)"zxxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 0, 0, 2)},
+	{(char *)"zxxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 0, 0, 3)},
+	{(char *)"zxy",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(2, 0, 1)},
+	{(char *)"zxyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 0, 1, 0)},
+	{(char *)"zxyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 0, 1, 1)},
+	{(char *)"zxyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 0, 1, 2)},
+	{(char *)"zxyw", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(2, 0, 1, 3)},
+	{(char *)"zxz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(2, 0, 2)},
+	{(char *)"zxzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 0, 2, 0)},
+	{(char *)"zxzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 0, 2, 1)},
+	{(char *)"zxzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 0, 2, 2)},
+	{(char *)"zxzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 0, 2, 3)},
+	{(char *)"zxw",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(2, 0, 3)},
+	{(char *)"zxwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 0, 3, 0)},
+	{(char *)"zxwy", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(2, 0, 3, 1)},
+	{(char *)"zxwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 0, 3, 2)},
+	{(char *)"zxww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 0, 3, 3)},
+	{(char *)"zy",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE2(2, 1)},
+	{(char *)"zyx",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(2, 1, 0)},
+	{(char *)"zyxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 1, 0, 0)},
+	{(char *)"zyxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 1, 0, 1)},
+	{(char *)"zyxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 1, 0, 2)},
+	{(char *)"zyxw", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(2, 1, 0, 3)},
+	{(char *)"zyy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(2, 1, 1)},
+	{(char *)"zyyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 1, 1, 0)},
+	{(char *)"zyyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 1, 1, 1)},
+	{(char *)"zyyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 1, 1, 2)},
+	{(char *)"zyyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 1, 1, 3)},
+	{(char *)"zyz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(2, 1, 2)},
+	{(char *)"zyzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 1, 2, 0)},
+	{(char *)"zyzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 1, 2, 1)},
+	{(char *)"zyzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 1, 2, 2)},
+	{(char *)"zyzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 1, 2, 3)},
+	{(char *)"zyw",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(2, 1, 3)},
+	{(char *)"zywx", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(2, 1, 3, 0)},
+	{(char *)"zywy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 1, 3, 1)},
+	{(char *)"zywz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 1, 3, 2)},
+	{(char *)"zyww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 1, 3, 3)},
+	{(char *)"zz",   (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE2(2, 2)},
+	{(char *)"zzx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(2, 2, 0)},
+	{(char *)"zzxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 0, 0)},
+	{(char *)"zzxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 0, 1)},
+	{(char *)"zzxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 0, 2)},
+	{(char *)"zzxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 0, 3)},
+	{(char *)"zzy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(2, 2, 1)},
+	{(char *)"zzyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 1, 0)},
+	{(char *)"zzyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 1, 1)},
+	{(char *)"zzyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 1, 2)},
+	{(char *)"zzyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 1, 3)},
+	{(char *)"zzz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(2, 2, 2)},
+	{(char *)"zzzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 2, 0)},
+	{(char *)"zzzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 2, 1)},
+	{(char *)"zzzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 2, 2)},
+	{(char *)"zzzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 2, 3)},
+	{(char *)"zzw",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(2, 2, 3)},
+	{(char *)"zzwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 3, 0)},
+	{(char *)"zzwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 3, 1)},
+	{(char *)"zzwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 3, 2)},
+	{(char *)"zzww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 2, 3, 3)},
+	{(char *)"zw",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE2(2, 3)},
+	{(char *)"zwx",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(2, 3, 0)},
+	{(char *)"zwxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 3, 0, 0)},
+	{(char *)"zwxy", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(2, 3, 0, 1)},
+	{(char *)"zwxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 3, 0, 2)},
+	{(char *)"zwxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 3, 0, 3)},
+	{(char *)"zwy",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(2, 3, 1)},
+	{(char *)"zwyx", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(2, 3, 1, 0)},
+	{(char *)"zwyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 3, 1, 1)},
+	{(char *)"zwyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 3, 1, 2)},
+	{(char *)"zwyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 3, 1, 3)},
+	{(char *)"zwz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(2, 3, 2)},
+	{(char *)"zwzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 3, 2, 0)},
+	{(char *)"zwzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 3, 2, 1)},
+	{(char *)"zwzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 3, 2, 2)},
+	{(char *)"zwzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 3, 2, 3)},
+	{(char *)"zww",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(2, 3, 3)},
+	{(char *)"zwwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 3, 3, 0)},
+	{(char *)"zwwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 3, 3, 1)},
+	{(char *)"zwwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 3, 3, 2)},
+	{(char *)"zwww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(2, 3, 3, 3)},
+	{(char *)"wx",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE2(3, 0)},
+	{(char *)"wxx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(3, 0, 0)},
+	{(char *)"wxxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 0, 0, 0)},
+	{(char *)"wxxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 0, 0, 1)},
+	{(char *)"wxxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 0, 0, 2)},
+	{(char *)"wxxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 0, 0, 3)},
+	{(char *)"wxy",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(3, 0, 1)},
+	{(char *)"wxyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 0, 1, 0)},
+	{(char *)"wxyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 0, 1, 1)},
+	{(char *)"wxyz", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(3, 0, 1, 2)},
+	{(char *)"wxyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 0, 1, 3)},
+	{(char *)"wxz",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(3, 0, 2)},
+	{(char *)"wxzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 0, 2, 0)},
+	{(char *)"wxzy", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(3, 0, 2, 1)},
+	{(char *)"wxzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 0, 2, 2)},
+	{(char *)"wxzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 0, 2, 3)},
+	{(char *)"wxw",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(3, 0, 3)},
+	{(char *)"wxwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 0, 3, 0)},
+	{(char *)"wxwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 0, 3, 1)},
+	{(char *)"wxwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 0, 3, 2)},
+	{(char *)"wxww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 0, 3, 3)},
+	{(char *)"wy",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE2(3, 1)},
+	{(char *)"wyx",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(3, 1, 0)},
+	{(char *)"wyxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 1, 0, 0)},
+	{(char *)"wyxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 1, 0, 1)},
+	{(char *)"wyxz", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(3, 1, 0, 2)},
+	{(char *)"wyxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 1, 0, 3)},
+	{(char *)"wyy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(3, 1, 1)},
+	{(char *)"wyyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 1, 1, 0)},
+	{(char *)"wyyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 1, 1, 1)},
+	{(char *)"wyyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 1, 1, 2)},
+	{(char *)"wyyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 1, 1, 3)},
+	{(char *)"wyz",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(3, 1, 2)},
+	{(char *)"wyzx", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(3, 1, 2, 0)},
+	{(char *)"wyzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 1, 2, 1)},
+	{(char *)"wyzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 1, 2, 2)},
+	{(char *)"wyzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 1, 2, 3)},
+	{(char *)"wyw",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(3, 1, 3)},
+	{(char *)"wywx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 1, 3, 0)},
+	{(char *)"wywy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 1, 3, 1)},
+	{(char *)"wywz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 1, 3, 2)},
+	{(char *)"wyww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 1, 3, 3)},
+	{(char *)"wz",   (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE2(3, 2)},
+	{(char *)"wzx",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(3, 2, 0)},
+	{(char *)"wzxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 2, 0, 0)},
+	{(char *)"wzxy", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(3, 2, 0, 1)},
+	{(char *)"wzxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 2, 0, 2)},
+	{(char *)"wzxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 2, 0, 3)},
+	{(char *)"wzy",  (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE3(3, 2, 1)},
+	{(char *)"wzyx", (getter)Vector_swizzle_get, (setter)Vector_swizzle_set, NULL, SWIZZLE4(3, 2, 1, 0)},
+	{(char *)"wzyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 2, 1, 1)},
+	{(char *)"wzyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 2, 1, 2)},
+	{(char *)"wzyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 2, 1, 3)},
+	{(char *)"wzz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(3, 2, 2)},
+	{(char *)"wzzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 2, 2, 0)},
+	{(char *)"wzzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 2, 2, 1)},
+	{(char *)"wzzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 2, 2, 2)},
+	{(char *)"wzzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 2, 2, 3)},
+	{(char *)"wzw",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(3, 2, 3)},
+	{(char *)"wzwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 2, 3, 0)},
+	{(char *)"wzwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 2, 3, 1)},
+	{(char *)"wzwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 2, 3, 2)},
+	{(char *)"wzww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 2, 3, 3)},
+	{(char *)"ww",   (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE2(3, 3)},
+	{(char *)"wwx",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(3, 3, 0)},
+	{(char *)"wwxx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 0, 0)},
+	{(char *)"wwxy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 0, 1)},
+	{(char *)"wwxz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 0, 2)},
+	{(char *)"wwxw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 0, 3)},
+	{(char *)"wwy",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(3, 3, 1)},
+	{(char *)"wwyx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 1, 0)},
+	{(char *)"wwyy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 1, 1)},
+	{(char *)"wwyz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 1, 2)},
+	{(char *)"wwyw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 1, 3)},
+	{(char *)"wwz",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(3, 3, 2)},
+	{(char *)"wwzx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 2, 0)},
+	{(char *)"wwzy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 2, 1)},
+	{(char *)"wwzz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 2, 2)},
+	{(char *)"wwzw", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 2, 3)},
+	{(char *)"www",  (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE3(3, 3, 3)},
+	{(char *)"wwwx", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 3, 0)},
+	{(char *)"wwwy", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 3, 1)},
+	{(char *)"wwwz", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 3, 2)},
+	{(char *)"wwww", (getter)Vector_swizzle_get, (setter)NULL, NULL, SWIZZLE4(3, 3, 3, 3)},
 
 #undef AXIS_FROM_CHAR
-#undef SWIZZLE
-#undef _VA_SWIZZLE_1
-#undef _VA_SWIZZLE_2
-#undef _VA_SWIZZLE_3
-#undef _VA_SWIZZLE_4
+#undef SWIZZLE1
+#undef SWIZZLE2
+#undef SWIZZLE3
+#undef SWIZZLE4
+#undef _SWIZZLE1
+#undef _SWIZZLE2
+#undef _SWIZZLE3
+#undef _SWIZZLE4
 
 	{NULL, NULL, NULL, NULL, NULL}  /* Sentinel */
 };
 
 /**
- * Python script used to make swizzle array:
- *
- * \code{.py}
- * SWIZZLE_BITS_PER_AXIS = 3
- * SWIZZLE_VALID_AXIS = 0x4
- *
- * axis_dict = {}
- * axis_pos = {'x': 0, 'y': 1, 'z': 2, 'w': 3}
- * axises = 'xyzw'
- * while len(axises) >= 2:
- *     for axis_0 in axises:
- *         axis_0_pos = axis_pos[axis_0]
- *         for axis_1 in axises:
- *             axis_1_pos = axis_pos[axis_1]
- *             axis_dict[axis_0 + axis_1] = (
- *                 '((%s | SWIZZLE_VALID_AXIS) | '
- *                 '((%s | SWIZZLE_VALID_AXIS) << SWIZZLE_BITS_PER_AXIS))' %
- *                 (axis_0_pos, axis_1_pos))
- *             if len(axises) > 2:
- *                 for axis_2 in axises:
- *                     axis_2_pos = axis_pos[axis_2]
- *                     axis_dict[axis_0 + axis_1 + axis_2] = (
- *                         '((%s | SWIZZLE_VALID_AXIS) | '
- *                         '((%s | SWIZZLE_VALID_AXIS) << SWIZZLE_BITS_PER_AXIS) | '
- *                         '((%s | SWIZZLE_VALID_AXIS) << (SWIZZLE_BITS_PER_AXIS * 2)))' %
- *                         (axis_0_pos, axis_1_pos, axis_2_pos))
- *                     if len(axises) > 3:
- *                         for axis_3 in axises:
- *                             axis_3_pos = axis_pos[axis_3]
- *                             axis_dict[axis_0 + axis_1 + axis_2 + axis_3] = (
- *                                 '((%s | SWIZZLE_VALID_AXIS) | '
- *                                 '((%s | SWIZZLE_VALID_AXIS) << SWIZZLE_BITS_PER_AXIS) | '
- *                                 '((%s | SWIZZLE_VALID_AXIS) << (SWIZZLE_BITS_PER_AXIS * 2)) | '
- *                                 '((%s | SWIZZLE_VALID_AXIS) << (SWIZZLE_BITS_PER_AXIS * 3)))  ' %
- *                                 (axis_0_pos, axis_1_pos, axis_2_pos, axis_3_pos))
- *
- *     axises = axises[:-1]
- *
- *
- * items = list(axis_dict.items())
- * items.sort(key=lambda a: a[0].replace('x', '0').replace('y', '1').replace('z', '2').replace('w', '3'))
- *
- * unique = set()
- * for key, val in items:
- *     num = eval(val)
- *     set_str = 'Vector_swizzle_set' if (len(set(key)) == len(key)) else 'NULL'
- *     key_args = ', '.join(["'%s'" % c for c in key.upper()])
- *     print('\t{(char *)"%s", %s(getter)Vector_swizzle_get, (setter)%s, NULL, SWIZZLE(%s)},' %
- *           (key, (' ' * (4 - len(key))), set_str, key_args))
- *     unique.add(num)
- *
- * if len(unique) != len(items):
- *     print("ERROR, duplicate values found")
- * \endcode
- */
-
-/* ROW VECTOR Multiplication - Vector X Matrix
+ * Row vector multiplication - (Vector * Matrix)
+ * <pre>
  * [x][y][z] * [1][4][7]
  *             [2][5][8]
  *             [3][6][9]
- * vector/matrix multiplication IS NOT COMMUTATIVE!!!! */
+ * </pre>
+ * \note vector/matrix multiplication is not commutative.
+ */
 static int row_vector_multiplication(float r_vec[MAX_DIMENSIONS], VectorObject *vec, MatrixObject *mat)
 {
 	float vec_cpy[MAX_DIMENSIONS];
@@ -2863,10 +2880,11 @@ static struct PyMethodDef Vector_methods[] = {
 };
 
 
-/* Note
- * Py_TPFLAGS_CHECKTYPES allows us to avoid casting all types to Vector when coercing
- * but this means for eg that
- * (vec * mat) and (mat * vec) both get sent to Vector_mul and it needs to sort out the order
+/**
+ * Note:
+ * #Py_TPFLAGS_CHECKTYPES allows us to avoid casting all types to Vector when coercing
+ * but this means for eg that (vec * mat) and (mat * vec)
+ * both get sent to Vector_mul and it needs to sort out the order
  */
 
 PyDoc_STRVAR(vector_doc,
@@ -3010,6 +3028,11 @@ PyObject *Vector_CreatePyObject(
 	return (PyObject *)self;
 }
 
+/**
+ * Create a vector that wraps existing memory.
+ *
+ * \param vec: Use this vector in-place.
+ */
 PyObject *Vector_CreatePyObject_wrap(
         float *vec, const int size,
         PyTypeObject *base_type)
@@ -3036,6 +3059,10 @@ PyObject *Vector_CreatePyObject_wrap(
 	return (PyObject *) self;
 }
 
+/**
+ * Create a vector where the value is defined by registered callbacks,
+ * see: #Mathutils_RegisterCallback
+ */
 PyObject *Vector_CreatePyObject_cb(
         PyObject *cb_user, int size,
         unsigned char cb_type, unsigned char cb_subtype)
@@ -3052,6 +3079,9 @@ PyObject *Vector_CreatePyObject_cb(
 	return (PyObject *)self;
 }
 
+/**
+ * \param vec: Initialized vector value to use in-place, allocated with: PyMem_Malloc
+ */
 PyObject *Vector_CreatePyObject_alloc(
         float *vec, const int size,
         PyTypeObject *base_type)
diff --git a/source/blender/python/mathutils/mathutils_bvhtree.c b/source/blender/python/mathutils/mathutils_bvhtree.c
index 1eb8644a9a6..42771d93b4e 100644
--- a/source/blender/python/mathutils/mathutils_bvhtree.c
+++ b/source/blender/python/mathutils/mathutils_bvhtree.c
@@ -761,7 +761,7 @@ static PyObject *C_BVHTree_FromPolygons(PyObject *UNUSED(cls), PyObject *args, P
 			py_tricoords_fast_items = PySequence_Fast_ITEMS(py_tricoords_fast);
 
 			for (j = 0; j < 3; j++) {
-				tri[j] = (unsigned int)_PyLong_AsInt(py_tricoords_fast_items[j]);
+				tri[j] = PyC_Long_AsU32(py_tricoords_fast_items[j]);
 				if (UNLIKELY(tri[j] >= (unsigned int)coords_len)) {
 					PyErr_Format(PyExc_ValueError,
 					             "%s: index %d must be less than %d",
@@ -812,7 +812,7 @@ static PyObject *C_BVHTree_FromPolygons(PyObject *UNUSED(cls), PyObject *args, P
 			p_plink_prev = &plink->next;
 
 			for (j = 0; j < py_tricoords_len; j++) {
-				plink->poly[j] = (unsigned int)_PyLong_AsInt(py_tricoords_fast_items[j]);
+				plink->poly[j] = PyC_Long_AsU32(py_tricoords_fast_items[j]);
 				if (UNLIKELY(plink->poly[j] >= (unsigned int)coords_len)) {
 					PyErr_Format(PyExc_ValueError,
 					             "%s: index %d must be less than %d",
@@ -1156,7 +1156,6 @@ static PyObject *C_BVHTree_FromObject(PyObject *UNUSED(cls), PyObject *args, PyO
 
 	/* Get data for tessellation */
 	{
-		DM_ensure_looptri(dm);
 		lt = dm->getLoopTriArray(dm);
 
 		tris_len = (unsigned int)dm->getNumLoopTri(dm);
diff --git a/source/blender/python/mathutils/mathutils_geometry.c b/source/blender/python/mathutils/mathutils_geometry.c
index 868e4b38408..1dc18dbe509 100644
--- a/source/blender/python/mathutils/mathutils_geometry.c
+++ b/source/blender/python/mathutils/mathutils_geometry.c
@@ -1279,7 +1279,7 @@ static PyObject *M_Geometry_tessellate_polygon(PyObject *UNUSED(self), PyObject
 		index = 0;
 		dl_face = dl->index;
 		while (index < dl->parts) {
-			PyList_SET_ITEM(tri_list, index, Py_BuildValue("iii", dl_face[0], dl_face[1], dl_face[2]));
+			PyList_SET_ITEM(tri_list, index, PyC_Tuple_Pack_I32(dl_face[0], dl_face[1], dl_face[2]));
 			dl_face += 3;
 			index++;
 		}
diff --git a/source/blender/quicktime/apple/qtkit_export.m b/source/blender/quicktime/apple/qtkit_export.m
deleted file mode 100644
index 1ac3c58f888..00000000000
--- a/source/blender/quicktime/apple/qtkit_export.m
+++ /dev/null
@@ -1,884 +0,0 @@
-/*
- * Code to create QuickTime Movies with Blender
- *
- * ***** BEGIN GPL LICENSE BLOCK *****
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- *
- * The Original Code is written by Rob Haarsma (phase)
- *
- * Contributor(s): Stefan Gartner (sgefant)
- *				   Damien Plisson 11/2009
- *
- * ***** END GPL LICENSE BLOCK *****
- */
-
-#ifdef WITH_QUICKTIME
-#if defined(_WIN32) || defined(__APPLE__)
-
-#include <stdio.h>
-#include <string.h>
-
-#include "DNA_scene_types.h"
-#include "DNA_userdef_types.h"
-
-#ifdef WITH_AUDASPACE
-#  include AUD_DEVICE_H
-#endif
-
-#include "BLI_utildefines.h"
-#include "BKE_global.h"
-#include "BKE_main.h"
-#include "BKE_scene.h"
-#include "BKE_report.h"
-
-#include "BLI_blenlib.h"
-
-#include "BLI_sys_types.h"
-
-#include "IMB_imbuf.h"
-#include "IMB_imbuf_types.h"
-
-#include "MEM_guardedalloc.h"
-
-#ifdef __APPLE__
-/* evil */
-#ifndef __AIFF__
-#define __AIFF__
-#endif
-#import <Cocoa/Cocoa.h>
-#import <QTKit/QTKit.h>
-#include <AudioToolbox/AudioToolbox.h>
-
-#include "quicktime_import.h"
-#include "quicktime_export.h"
-
-#endif /* __APPLE__ */
-
-typedef struct QuicktimeExport {
-	QTMovie *movie;
-	
-	NSString *filename;
-
-	QTTime frameDuration;
-	NSDictionary *frameAttributes;
-	
-	NSString *videoTempFileName;
-	/* Audio section */
-	AUD_Device *audioInputDevice;
-	AudioFileID audioFile;
-	NSString *audioFileName;
-	AudioConverterRef audioConverter;
-	AudioBufferList audioBufferList;
-	AudioStreamBasicDescription audioInputFormat, audioOutputFormat;
-	AudioStreamPacketDescription *audioOutputPktDesc;
-	SInt64 audioFilePos;
-	char *audioInputBuffer;
-	char *audioOutputBuffer;
-	UInt32 audioCodecMaxOutputPacketSize;
-	UInt64 audioTotalExportedFrames, audioTotalSavedFrames;
-	UInt64 audioLastFrame;
-	SInt64 audioOutputPktPos;
-	
-} QuicktimeExport;
-
-#define AUDIOOUTPUTBUFFERSIZE 65536
-
-#pragma mark rna helper functions
-
-/* Video codec */
-static QuicktimeCodecTypeDesc qtVideoCodecList[] = {
-	{kRawCodecType, 1, "Uncompressed"},
-	{k422YpCbCr8CodecType, 2, "Uncompressed 8-bit 4:2:2"},
-	{k422YpCbCr10CodecType, 3, "Uncompressed 10-bit 4:2:2"},
-	{kComponentVideoCodecType, 4, "Component Video"},
-	{kPixletCodecType, 5, "Pixlet"},
-	{kPNGCodecType, 6, "PNG"},
-	{kJPEGCodecType, 7, "JPEG"},
-	{kMotionJPEGACodecType, 8, "M-JPEG A"},
-	{kMotionJPEGBCodecType, 9, "M-JPEG B"},
-	{kDVCPALCodecType, 10, "DV PAL"},
-	{kDVCNTSCCodecType, 11, "DV/DVCPRO NTSC"},
-	{kDVCPROHD720pCodecType, 12, "DVCPRO HD 720p"},
-	{kDVCPROHD1080i50CodecType, 13, "DVCPRO HD 1080i50"},
-	{kDVCPROHD1080i60CodecType, 14, "DVCPRO HD 1080i60"},
-	{kMPEG4VisualCodecType, 15, "MPEG4"},
-	{kH263CodecType, 16, "H.263"},
-	{kH264CodecType, 17, "H.264"},
-	{kAnimationCodecType, 18, "Animation"},
-	{0,0,NULL}};
-
-static int qtVideoCodecCount = 18;
-
-int quicktime_get_num_videocodecs()
-{
-	return qtVideoCodecCount;
-}
-
-QuicktimeCodecTypeDesc* quicktime_get_videocodecType_desc(int indexValue)
-{
-	if ((indexValue>=0) && (indexValue < qtVideoCodecCount))
-		return &qtVideoCodecList[indexValue];
-	else
-		return NULL;
-}
-
-int quicktime_rnatmpvalue_from_videocodectype(int codecType)
-{
-	int i;
-	for (i = 0; i < qtVideoCodecCount; i++) {
-		if (qtVideoCodecList[i].codecType == codecType)
-			return qtVideoCodecList[i].rnatmpvalue;
-	}
-
-	return 0;
-}
-
-int quicktime_videocodecType_from_rnatmpvalue(int rnatmpvalue)
-{
-	int i;
-	for (i = 0; i < qtVideoCodecCount; i++) {
-		if (qtVideoCodecList[i].rnatmpvalue == rnatmpvalue)
-			return qtVideoCodecList[i].codecType;
-	}
-	
-	return 0;
-}
-
-/* Audio codec */
-static QuicktimeCodecTypeDesc qtAudioCodecList[] = {
-	{0, 0, "No audio"},
-	{kAudioFormatLinearPCM, 1, "LPCM"},
-	{kAudioFormatAppleLossless, 2, "Apple Lossless"},
-	{kAudioFormatMPEG4AAC, 3, "AAC"},
-	{0,0,NULL}};
-
-static int qtAudioCodecCount = 4;
-
-int quicktime_get_num_audiocodecs()
-{
-	return qtAudioCodecCount;
-}
-
-QuicktimeCodecTypeDesc* quicktime_get_audiocodecType_desc(int indexValue)
-{
-	if ((indexValue>=0) && (indexValue < qtAudioCodecCount))
-		return &qtAudioCodecList[indexValue];
-	else
-		return NULL;
-}
-
-int quicktime_rnatmpvalue_from_audiocodectype(int codecType)
-{
-	int i;
-	for (i = 0; i < qtAudioCodecCount; i++) {
-		if (qtAudioCodecList[i].codecType == codecType)
-			return qtAudioCodecList[i].rnatmpvalue;
-	}
-	
-	return 0;
-}
-
-int quicktime_audiocodecType_from_rnatmpvalue(int rnatmpvalue)
-{
-	int i;
-	for (i = 0; i < qtAudioCodecCount; i++) {
-		if (qtAudioCodecList[i].rnatmpvalue == rnatmpvalue)
-			return qtAudioCodecList[i].codecType;
-	}
-	
-	return 0;
-}
-
-
-static NSString *stringWithCodecType(int codecType)
-{
-	char str[5];
-	
-	*((int *)str) = EndianU32_NtoB(codecType);
-	str[4] = 0;
-	
-	return [NSString stringWithCString:str encoding:NSASCIIStringEncoding];
-}
-
-void makeqtstring(RenderData *rd, char *string, bool preview)
-{
-	int sfra, efra;
-
-	char txt[64];
-
-	if (preview) {
-		sfra = rd->psfra;
-		efra = rd->pefra;
-	}
-	else {
-		sfra = rd->sfra;
-		efra = rd->efra;
-	}
-	
-	strcpy(string, rd->pic);
-	BLI_path_abs(string, G.main->name);
-
-	BLI_make_existing_file(string);
-
-	if (BLI_strcasecmp(string + strlen(string) - 4, ".mov")) {
-		sprintf(txt, "%04d-%04d.mov", (rd->sfra) , (rd->efra) );
-		strcat(string, txt);
-	}
-}
-
-void filepath_qt(char *string, RenderData *rd, bool preview, const char *suffix)
-{
-	int sfra, efra;
-
-	if (string == NULL) return;
-	
-	if (preview) {
-		sfra = rd->psfra;
-		efra = rd->pefra;
-	}
-	else {
-		sfra = rd->sfra;
-		efra = rd->efra;
-	}
-
-	strcpy(string, rd->pic);
-	BLI_path_abs(string, G.main->name);
-	
-	BLI_make_existing_file(string);
-
-	if (rd->scemode & R_EXTENSION) {
-		if (!BLI_testextensie(string, ".mov")) {
-			BLI_path_frame_range(string, sfra, efra, 4);
-			strcat(string, ".mov");
-		}
-	}
-	else {
-		if (BLI_path_frame_check_chars(string)) {
-			BLI_path_frame_range(string, sfra, efra, 4);
-		}
-	}
-
-	BLI_path_suffix(string, FILE_MAX, suffix, "");
-}
-
-void *context_create_qt(void)
-{
-	QuicktimeExport *qtexport = MEM_callocN(sizeof(QuicktimeExport), "QuicktimeExport");
-	return qtexport;
-}
-
-void context_free_qt(void *context_v)
-{
-	QuicktimeExport *qtexport = context_v;
-	if (qtexport) {
-		MEM_freeN(qtexport);
-	}
-}
-
-#pragma mark audio export functions
-
-static OSStatus	write_cookie(AudioConverterRef converter, AudioFileID outfile)
-{
-	// grab the cookie from the converter and write it to the file
-	UInt32 cookieSize = 0;
-	OSStatus err = AudioConverterGetPropertyInfo(converter, kAudioConverterCompressionMagicCookie, &cookieSize, NULL);
-	// if there is an error here, then the format doesn't have a cookie, so on we go
-	if (!err && cookieSize) {
-		char* cookie = malloc(cookieSize);
-		
-		err = AudioConverterGetProperty(converter, kAudioConverterCompressionMagicCookie, &cookieSize, cookie);
-		
-		if (!err)
-			err = AudioFileSetProperty (outfile, kAudioFilePropertyMagicCookieData, cookieSize, cookie);
-			// even though some formats have cookies, some files don't take them
-		
-		free(cookie);
-	}
-	return err;
-}
-
-/* AudioConverter input stream callback */
-static OSStatus AudioConverterInputCallback(AudioConverterRef inAudioConverter,
-						 UInt32* ioNumberDataPackets,
-						 AudioBufferList* ioData,
-						 AudioStreamPacketDescription**	outDataPacketDescription,
-						 void* inUserData)
-{
-	QuicktimeExport *qtexport = inUserData;
-	if (qtexport->audioTotalExportedFrames >= qtexport->audioLastFrame) { /* EOF */
-		*ioNumberDataPackets = 0;
-		return noErr;
-	}
-
-	if (qtexport->audioInputFormat.mBytesPerPacket * *ioNumberDataPackets > AUDIOOUTPUTBUFFERSIZE)
-		*ioNumberDataPackets = AUDIOOUTPUTBUFFERSIZE / qtexport->audioInputFormat.mBytesPerPacket;
-	
-	if ((qtexport->audioTotalExportedFrames + *ioNumberDataPackets) > qtexport->audioLastFrame)
-		*ioNumberDataPackets = (qtexport->audioLastFrame - qtexport->audioTotalExportedFrames) / qtexport->audioInputFormat.mFramesPerPacket;
-	
-	qtexport->audioTotalExportedFrames += *ioNumberDataPackets;
-	
-	AUD_Device_read(qtexport->audioInputDevice, (UInt8 *)qtexport->audioInputBuffer,
-	                qtexport->audioInputFormat.mFramesPerPacket * *ioNumberDataPackets);
-	
-	ioData->mBuffers[0].mDataByteSize = qtexport->audioInputFormat.mBytesPerPacket * *ioNumberDataPackets;
-	ioData->mBuffers[0].mData = qtexport->audioInputBuffer;
-	ioData->mBuffers[0].mNumberChannels = qtexport->audioInputFormat.mChannelsPerFrame;
-	
-	return noErr;
-}	
-
-
-#pragma mark export functions
-
-int start_qt(
-        void *context_v, struct Scene *scene, struct RenderData *rd, int UNUSED(rectx), int UNUSED(recty),
-        ReportList *reports, bool preview, const char *UNUSED(suffix))
-{
-	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
-	NSError *error;
-	char name[1024];
-	int success = 1;
-	OSStatus err = noErr;
-	int sfra, efra;
-	QuicktimeExport *qtexport = context_v;
-
-	if (preview) {
-		sfra = rd->psfra;
-		efra = rd->pefra;
-	}
-	else {
-		sfra = rd->sfra;
-		efra = rd->efra;
-	}
-	
-	[QTMovie enterQTKitOnThread];
-	
-	/* Check first if the QuickTime 7.2.1 initToWritableFile: method is available */
-	if ([[[[QTMovie alloc] init] autorelease] respondsToSelector:@selector(initToWritableFile:error:)] != YES) {
-		BKE_report(reports, RPT_ERROR, "\nUnable to create quicktime movie, need Quicktime rev 7.2.1 or later");
-		success = 0;
-	}
-	else {
-		makeqtstring(rd, name, preview);
-		qtexport->filename = [[NSString alloc] initWithUTF8String:name];
-		qtexport->movie = nil;
-		qtexport->audioFile = NULL;
-
-		if (rd->qtcodecsettings.audiocodecType) {
-			// generate a name for our video & audio files
-			/* Init audio file */
-			CFURLRef outputFileURL;
-			char extension[32];
-			AudioFileTypeID audioFileType;
-			
-			switch (rd->qtcodecsettings.audiocodecType) {
-				case kAudioFormatLinearPCM:
-					audioFileType = kAudioFileWAVEType;
-					strcpy(extension,".wav");
-					break;
-				case kAudioFormatMPEG4AAC:
-				case kAudioFormatAppleLossless:
-					audioFileType = kAudioFileM4AType;
-					strcpy(extension, ".m4a");
-					break;
-				default:
-					audioFileType = kAudioFileAIFFType;
-					strcpy(extension,".aiff");
-					break;
-			}
-
-			tmpnam(name);
-			strcat(name, extension);
-			outputFileURL = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault,(UInt8 *)name, strlen(name), false);
-			
-			if (outputFileURL) {
-				
-				qtexport->audioFileName = [[NSString alloc] initWithCString:name
-				                                                            encoding:[NSString defaultCStringEncoding]];
-				
-				qtexport->audioInputFormat.mSampleRate = U.audiorate;
-				qtexport->audioInputFormat.mFormatID = kAudioFormatLinearPCM;
-				qtexport->audioInputFormat.mChannelsPerFrame = U.audiochannels;
-				switch (U.audioformat) {
-					case AUD_FORMAT_U8:
-						qtexport->audioInputFormat.mBitsPerChannel = 8;
-						qtexport->audioInputFormat.mFormatFlags = 0;
-						break;
-					case AUD_FORMAT_S24:
-						qtexport->audioInputFormat.mBitsPerChannel = 24;
-						qtexport->audioInputFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger;
-						break;
-					case AUD_FORMAT_S32:
-						qtexport->audioInputFormat.mBitsPerChannel = 32;
-						qtexport->audioInputFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger;
-						break;
-					case AUD_FORMAT_FLOAT32:
-						qtexport->audioInputFormat.mBitsPerChannel = 32;
-						qtexport->audioInputFormat.mFormatFlags = kLinearPCMFormatFlagIsFloat;
-						break;
-					case AUD_FORMAT_FLOAT64:
-						qtexport->audioInputFormat.mBitsPerChannel = 64;
-						qtexport->audioInputFormat.mFormatFlags = kLinearPCMFormatFlagIsFloat;
-						break;
-					case AUD_FORMAT_S16:
-					default:
-						qtexport->audioInputFormat.mBitsPerChannel = 16;
-						qtexport->audioInputFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger;
-						break;
-				}
-				qtexport->audioInputFormat.mBytesPerFrame = qtexport->audioInputFormat.mChannelsPerFrame * qtexport->audioInputFormat.mBitsPerChannel / 8;
-				qtexport->audioInputFormat.mFramesPerPacket = 1; /*If not ==1, then need to check input callback for "rounding" issues"*/
-				qtexport->audioInputFormat.mBytesPerPacket = qtexport->audioInputFormat.mBytesPerFrame;
-				qtexport->audioInputFormat.mFormatFlags |= kLinearPCMFormatFlagIsPacked;
-				
-				
-				/*Output format*/
-				qtexport->audioOutputFormat.mFormatID = rd->qtcodecsettings.audiocodecType;
-				//TODO: set audio channels
-				qtexport->audioOutputFormat.mChannelsPerFrame = 2;
-				qtexport->audioOutputFormat.mSampleRate = rd->qtcodecsettings.audioSampleRate;
-				
-				/* Default value for compressed formats, overridden after if not the case */
-				qtexport->audioOutputFormat.mFramesPerPacket = 0;
-				qtexport->audioOutputFormat.mBytesPerFrame = 0;
-				qtexport->audioOutputFormat.mBytesPerPacket = 0;
-				qtexport->audioOutputFormat.mBitsPerChannel = 0;
-
-				switch (rd->qtcodecsettings.audiocodecType) {
-					case kAudioFormatMPEG4AAC:
-						qtexport->audioOutputFormat.mFormatFlags = kMPEG4Object_AAC_Main;
-						/* AAC codec does not handle sample rates above 48kHz, force this limit instead of getting an error afterwards */
-						if (qtexport->audioOutputFormat.mSampleRate > 48000) qtexport->audioOutputFormat.mSampleRate = 48000;
-						break;
-					case kAudioFormatAppleLossless:
-						switch (U.audioformat) {
-							case AUD_FORMAT_S16:
-								qtexport->audioOutputFormat.mFormatFlags = kAppleLosslessFormatFlag_16BitSourceData;
-								break;
-							case AUD_FORMAT_S24:
-								qtexport->audioOutputFormat.mFormatFlags = kAppleLosslessFormatFlag_24BitSourceData;
-								break;
-							case AUD_FORMAT_S32:
-								qtexport->audioOutputFormat.mFormatFlags = kAppleLosslessFormatFlag_32BitSourceData;
-								break;
-							case AUD_FORMAT_U8:
-							case AUD_FORMAT_FLOAT32:
-							case AUD_FORMAT_FLOAT64:
-							default:
-								break;
-						}
-						break;
-					case kAudioFormatLinearPCM:
-					default:
-						switch (rd->qtcodecsettings.audioBitDepth) {
-							case AUD_FORMAT_U8:
-								qtexport->audioOutputFormat.mBitsPerChannel = 8;
-								qtexport->audioOutputFormat.mFormatFlags = 0;
-								break;
-							case AUD_FORMAT_S24:
-								qtexport->audioOutputFormat.mBitsPerChannel = 24;
-								qtexport->audioOutputFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger;
-								break;
-							case AUD_FORMAT_S32:
-								qtexport->audioOutputFormat.mBitsPerChannel = 32;
-								qtexport->audioOutputFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger;
-								break;
-							case AUD_FORMAT_FLOAT32:
-								qtexport->audioOutputFormat.mBitsPerChannel = 32;
-								qtexport->audioOutputFormat.mFormatFlags = kLinearPCMFormatFlagIsFloat;
-								break;
-							case AUD_FORMAT_FLOAT64:
-								qtexport->audioOutputFormat.mBitsPerChannel = 64;
-								qtexport->audioOutputFormat.mFormatFlags = kLinearPCMFormatFlagIsFloat;
-								break;
-							case AUD_FORMAT_S16:
-							default:
-								qtexport->audioOutputFormat.mBitsPerChannel = 16;
-								qtexport->audioOutputFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger;
-								break;
-						}
-						qtexport->audioOutputFormat.mFormatFlags |= kLinearPCMFormatFlagIsPacked;
-						qtexport->audioOutputFormat.mBytesPerPacket = qtexport->audioOutputFormat.mChannelsPerFrame * (qtexport->audioOutputFormat.mBitsPerChannel / 8);
-						qtexport->audioOutputFormat.mFramesPerPacket = 1;
-						qtexport->audioOutputFormat.mBytesPerFrame = qtexport->audioOutputFormat.mBytesPerPacket;
-						break;
-				}
-
-				err = AudioFileCreateWithURL(outputFileURL, audioFileType, &qtexport->audioOutputFormat, kAudioFileFlags_EraseFile, &qtexport->audioFile);
-				CFRelease(outputFileURL);
-				
-				if (err)
-					BKE_report(reports, RPT_ERROR, "\nQuicktime: unable to create temporary audio file. Format error ?");
-				else {
-					err = AudioConverterNew(&qtexport->audioInputFormat, &qtexport->audioOutputFormat, &qtexport->audioConverter);
-					if (err) {
-						BKE_report(reports, RPT_ERROR, "\nQuicktime: unable to initialize audio codec converter. Format error ?");
-						AudioFileClose(qtexport->audioFile);
-						qtexport->audioFile = NULL;
-						[qtexport->audioFileName release];
-						qtexport->audioFileName = nil;
-					}
-					else {
-						UInt32 prop,propSize;
-						/* Set up codec properties */
-						if (rd->qtcodecsettings.audiocodecType == kAudioFormatMPEG4AAC) {  /* Lossy compressed format */
-							prop = rd->qtcodecsettings.audioBitRate;
-							AudioConverterSetProperty(qtexport->audioConverter, kAudioConverterEncodeBitRate,
-							                          sizeof(prop), &prop);
-							
-							if (rd->qtcodecsettings.audioCodecFlags & QTAUDIO_FLAG_CODEC_ISCBR)
-								prop = kAudioCodecBitRateControlMode_Constant;
-							else
-								prop = kAudioCodecBitRateControlMode_LongTermAverage;
-							AudioConverterSetProperty(qtexport->audioConverter, kAudioCodecPropertyBitRateControlMode,
-							                          sizeof(prop), &prop);
-						}
-						/* Conversion quality : if performance impact then offer degraded option */
-						if ((rd->qtcodecsettings.audioCodecFlags & QTAUDIO_FLAG_RESAMPLE_NOHQ) == 0) {
-							prop = kAudioConverterSampleRateConverterComplexity_Mastering;
-							AudioConverterSetProperty(qtexport->audioConverter, kAudioConverterSampleRateConverterComplexity,
-							                          sizeof(prop), &prop);
-							
-							prop = kAudioConverterQuality_Max;
-							AudioConverterSetProperty(qtexport->audioConverter, kAudioConverterSampleRateConverterQuality,
-							                          sizeof(prop), &prop);
-						}
-						
-						write_cookie(qtexport->audioConverter, qtexport->audioFile);
-						
-						/* Allocate output buffer */
-						if (qtexport->audioOutputFormat.mBytesPerPacket ==0) /* VBR */
-							AudioConverterGetProperty(qtexport->audioConverter, kAudioConverterPropertyMaximumOutputPacketSize,
-							                          &propSize, &qtexport->audioCodecMaxOutputPacketSize);
-						else
-							qtexport->audioCodecMaxOutputPacketSize = qtexport->audioOutputFormat.mBytesPerPacket;
-						
-						qtexport->audioInputBuffer = MEM_mallocN(AUDIOOUTPUTBUFFERSIZE, "qt_audio_inputPacket");
-						qtexport->audioOutputBuffer = MEM_mallocN(AUDIOOUTPUTBUFFERSIZE, "qt_audio_outputPacket");
-						qtexport->audioOutputPktDesc = MEM_mallocN(sizeof(AudioStreamPacketDescription) * AUDIOOUTPUTBUFFERSIZE / qtexport->audioCodecMaxOutputPacketSize,
-						                                           "qt_audio_pktdesc");
-					}
-				}
-			}
-
-			if (err == noErr) {
-				qtexport->videoTempFileName = [[NSString alloc] initWithCString:tmpnam(nil)
-				                                                encoding:[NSString defaultCStringEncoding]];
-				if (qtexport->videoTempFileName) {
-					qtexport->movie = [[QTMovie alloc] initToWritableFile:qtexport->videoTempFileName error:&error];
-				}
-
-			}
-		}
-		else
-			qtexport->movie = [[QTMovie alloc] initToWritableFile:qtexport->filename error:&error];
-
-		if (qtexport->movie == nil) {
-			BKE_report(reports, RPT_ERROR, "Unable to create quicktime movie.");
-			success = 0;
-			if (qtexport->filename) [qtexport->filename release];
-			qtexport->filename = nil;
-			if (qtexport->audioFileName) [qtexport->audioFileName release];
-			qtexport->audioFileName = nil;
-			if (qtexport->videoTempFileName) [qtexport->videoTempFileName release];
-			qtexport->videoTempFileName = nil;
-			[QTMovie exitQTKitOnThread];
-		}
-		else {
-			[qtexport->movie retain];
-			[qtexport->movie setAttribute:[NSNumber numberWithBool:YES] forKey:QTMovieEditableAttribute];
-			[qtexport->movie setAttribute:@"Made with Blender" forKey:QTMovieCopyrightAttribute];
-			
-			qtexport->frameDuration = QTMakeTime(rd->frs_sec_base * 1000, rd->frs_sec * 1000);
-			
-			/* specifying the codec attributes : try to retrieve them from render data first*/
-			if (rd->qtcodecsettings.codecType) {
-				qtexport->frameAttributes = [
-				        NSDictionary dictionaryWithObjectsAndKeys:
-				        stringWithCodecType(rd->qtcodecsettings.codecType),
-				        QTAddImageCodecType,
-				        [NSNumber numberWithLong:((rd->qtcodecsettings.codecSpatialQuality)*codecLosslessQuality)/100],
-				        QTAddImageCodecQuality,
-				        nil];
-			}
-			else {
-				qtexport->frameAttributes = [
-				        NSDictionary dictionaryWithObjectsAndKeys:@"jpeg",
-				        QTAddImageCodecType,
-				        [NSNumber numberWithLong:codecHighQuality],
-				        QTAddImageCodecQuality,
-				        nil];
-			}
-			[qtexport->frameAttributes retain];
-			
-			if (qtexport->audioFile) {
-				/* Init audio input stream */
-				AUD_DeviceSpecs specs;
-
-				specs.channels = U.audiochannels;
-				specs.format = U.audioformat;
-				specs.rate = U.audiorate;
-				qtexport->audioInputDevice = AUD_openReadDevice(specs);
-				AUD_playDevice(qtexport->audioInputDevice, scene->sound_scene, sfra * rd->frs_sec_base / rd->frs_sec);
-
-				qtexport->audioOutputPktPos = 0;
-				qtexport->audioTotalExportedFrames = 0;
-				qtexport->audioTotalSavedFrames = 0;
-				
-				qtexport->audioLastFrame = (efra - sfra) * qtexport->audioInputFormat.mSampleRate * rd->frs_sec_base / rd->frs_sec;
-			}
-		}
-	}
-	
-	[pool drain];
-
-	return success;
-}
-
-int append_qt(
-        void *context_v, struct RenderData *rd, int start_frame, int frame, int *pixels, int rectx, int recty,
-        const char *UNUSED(suffix), ReportList *reports)
-{
-	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
-	NSBitmapImageRep *blBitmapFormatImage;
-	NSImage *frameImage;
-	OSStatus err = noErr;
-	unsigned char *from_Ptr,*to_Ptr;
-	int y,from_i,to_i;
-	QuicktimeExport *qtexport = context_v;
-	
-	/* Create bitmap image rep in blender format (32bit RGBA) */
-	blBitmapFormatImage = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:NULL
-																  pixelsWide:rectx 
-																  pixelsHigh:recty
-															   bitsPerSample:8 samplesPerPixel:4 hasAlpha:YES isPlanar:NO
-															  colorSpaceName:NSCalibratedRGBColorSpace 
-																bitmapFormat:NSAlphaNonpremultipliedBitmapFormat
-																 bytesPerRow:rectx*4
-																bitsPerPixel:32];
-	if (!blBitmapFormatImage) {
-		[pool drain];
-		return 0;
-	}
-	
-	from_Ptr = (unsigned char *)pixels;
-	to_Ptr = (unsigned char *)[blBitmapFormatImage bitmapData];
-	for (y = 0; y < recty; y++) {
-		to_i = (recty-y-1)*rectx;
-		from_i = y*rectx;
-		memcpy(to_Ptr+4*to_i, from_Ptr+4*from_i, 4*rectx);
-	}
-	
-	frameImage = [[NSImage alloc] initWithSize:NSMakeSize(rectx, recty)];
-	[frameImage addRepresentation:blBitmapFormatImage];
-	
-	/* Add the image to the movie clip */
-	[qtexport->movie addImage:frameImage
-				  forDuration:qtexport->frameDuration
-			   withAttributes:qtexport->frameAttributes];
-
-	[blBitmapFormatImage release];
-	[frameImage release];
-	
-	
-	if (qtexport->audioFile) {
-		UInt32 audioPacketsConverted;
-
-		// Upper limit on total exported audio frames for this particular video frame
-		const UInt64 exportedAudioFrameLimit = (frame - start_frame) * qtexport->audioInputFormat.mSampleRate * rd->frs_sec_base / rd->frs_sec;
-
-		/* Append audio */
-		while (qtexport->audioTotalExportedFrames < exportedAudioFrameLimit) {
-
-			qtexport->audioBufferList.mNumberBuffers = 1;
-			qtexport->audioBufferList.mBuffers[0].mNumberChannels = qtexport->audioOutputFormat.mChannelsPerFrame;
-			qtexport->audioBufferList.mBuffers[0].mDataByteSize = AUDIOOUTPUTBUFFERSIZE;
-			qtexport->audioBufferList.mBuffers[0].mData = qtexport->audioOutputBuffer;
-
-			// Convert one audio packet at a time so that enclosing while loop can
-			// keep audio processing in sync with video frames.
-			// Previously, this was set to (AUDIOOUTPUTBUFFERSIZE / qtexport->audioCodecMaxOutputPacketSize),
-			// however this may cause AudioConverterFillComplexBuffer to convert audio spanning multiple
-			// video frames, which breaks animation of audio parameters such as volume for fade-in/out.
-			audioPacketsConverted = 1; 
-			
-			err = AudioConverterFillComplexBuffer(qtexport->audioConverter, AudioConverterInputCallback,
-			                                      qtexport, &audioPacketsConverted, &qtexport->audioBufferList, qtexport->audioOutputPktDesc);
-			if (audioPacketsConverted) {
-				AudioFileWritePackets(qtexport->audioFile, false, qtexport->audioBufferList.mBuffers[0].mDataByteSize,
-				        qtexport->audioOutputPktDesc, qtexport->audioOutputPktPos, &audioPacketsConverted, qtexport->audioOutputBuffer);
-				qtexport->audioOutputPktPos += audioPacketsConverted;
-				
-				if (qtexport->audioOutputFormat.mFramesPerPacket) {
-					// this is the common case: format has constant frames per packet
-					qtexport->audioTotalSavedFrames += (audioPacketsConverted * qtexport->audioOutputFormat.mFramesPerPacket);
-				}
-				else {
-					unsigned int i;
-					// if there are variable frames per packet, then we have to do this for each packeet
-					for (i = 0; i < audioPacketsConverted; ++i)
-						qtexport->audioTotalSavedFrames += qtexport->audioOutputPktDesc[i].mVariableFramesInPacket;
-				}
-				
-				
-			}
-			else {
-				//Error getting audio packets
-				BKE_reportf(reports, RPT_ERROR, "Unable to get further audio packets from frame %i, error = 0x%x",(int)qtexport->audioTotalExportedFrames,err);
-				break;
-			}
-
-		}
-	}
-	[pool drain];
-
-	return 1;
-}
-
-
-void end_qt(void *context_v)
-{
-	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
-	QuicktimeExport *qtexport = context_v;
-
-	if (qtexport->movie) {
-		
-		if (qtexport->audioFile)
-		{
-			NSDictionary *dict = nil;
-			QTMovie *audioTmpMovie = nil;
-			NSError *error;
-			NSFileManager *fileManager;
-			
-			/* Mux video and audio then save file */
-			
-			/* Write last frames for VBR files */
-			if (qtexport->audioOutputFormat.mBitsPerChannel == 0) {
-				OSStatus err = noErr;
-				AudioConverterPrimeInfo primeInfo;
-				UInt32 primeSize = sizeof(primeInfo);
-				
-				err = AudioConverterGetProperty(qtexport->audioConverter, kAudioConverterPrimeInfo, &primeSize, &primeInfo);
-				if (err == noErr) {
-					// there's priming to write out to the file
-					AudioFilePacketTableInfo pti;
-					pti.mPrimingFrames = primeInfo.leadingFrames;
-					pti.mRemainderFrames = primeInfo.trailingFrames;
-					pti.mNumberValidFrames = qtexport->audioTotalSavedFrames - pti.mPrimingFrames - pti.mRemainderFrames;
-					AudioFileSetProperty(qtexport->audioFile, kAudioFilePropertyPacketTableInfo, sizeof(pti), &pti);
-				}
-				
-			}
-			
-			write_cookie(qtexport->audioConverter, qtexport->audioFile);
-			AudioConverterDispose(qtexport->audioConverter);
-			AudioFileClose(qtexport->audioFile);
-			AUD_Device_free(qtexport->audioInputDevice);
-			qtexport->audioFile = NULL;
-			qtexport->audioInputDevice = NULL;
-			MEM_freeN(qtexport->audioInputBuffer);
-			MEM_freeN(qtexport->audioOutputBuffer);
-			MEM_freeN(qtexport->audioOutputPktDesc);
-			
-			/* Reopen audio file and merge it */
-			audioTmpMovie = [QTMovie movieWithFile:qtexport->audioFileName error:&error];
-			if (audioTmpMovie) {
-				NSArray *audioTracks = [audioTmpMovie tracksOfMediaType:QTMediaTypeSound];
-				QTTrack *audioTrack = nil;
-				if ( [audioTracks count] > 0 ) {
-					audioTrack = [audioTracks objectAtIndex:0];
-				}
-			
-				if (audioTrack) {
-					QTTimeRange totalRange;
-					totalRange.time = QTZeroTime;
-					totalRange.duration = [[audioTmpMovie attributeForKey:QTMovieDurationAttribute] QTTimeValue];
-					
-					[qtexport->movie insertSegmentOfTrack:audioTrack timeRange:totalRange atTime:QTZeroTime];
-				}
-			}
-			
-			/* Save file */
-			dict = [NSDictionary dictionaryWithObject:[NSNumber numberWithBool:YES]
-			        forKey:QTMovieFlatten];
-
-			if (dict) {
-				[qtexport->movie writeToFile:qtexport->filename withAttributes:dict];
-			}
-			
-			/* Delete temp files */
-			fileManager = [[NSFileManager alloc] init];
-			[fileManager removeItemAtPath:qtexport->audioFileName error:&error];
-			[fileManager removeItemAtPath:qtexport->videoTempFileName error:&error];
-			[fileManager release];
-		}
-		else {
-			/* Flush update of the movie file */
-			[qtexport->movie updateMovieFile];
-			
-			[qtexport->movie invalidate];
-		}
-		
-		/* Clean up movie structure */
-		if (qtexport->filename) [qtexport->filename release];
-		qtexport->filename = nil;
-		if (qtexport->audioFileName) [qtexport->audioFileName release];
-		qtexport->audioFileName = nil;
-		if (qtexport->videoTempFileName) [qtexport->videoTempFileName release];
-		qtexport->videoTempFileName = nil;
-		[qtexport->frameAttributes release];
-		[qtexport->movie release];
-	}
-	
-	[QTMovie exitQTKitOnThread];
-	[pool drain];
-}
-
-
-void free_qtcomponentdata(void)
-{
-}
-
-void quicktime_verify_image_type(RenderData *rd, ImageFormatData *imf)
-{
-	if (imf->imtype == R_IMF_IMTYPE_QUICKTIME) {
-		if ((rd->qtcodecsettings.codecType <= 0) ||
-		    (rd->qtcodecsettings.codecSpatialQuality < 0) ||
-		    (rd->qtcodecsettings.codecSpatialQuality > 100))
-		{
-			rd->qtcodecsettings.codecType = kJPEGCodecType;
-			rd->qtcodecsettings.codecSpatialQuality = (codecHighQuality * 100) / codecLosslessQuality;
-		}
-		if ((rd->qtcodecsettings.audioSampleRate < 21000) ||
-		    (rd->qtcodecsettings.audioSampleRate > 193000))
-		{
-			rd->qtcodecsettings.audioSampleRate = 48000;
-		}
-		
-		if (rd->qtcodecsettings.audioBitDepth == 0) {
-			rd->qtcodecsettings.audioBitDepth = AUD_FORMAT_S16;
-		}
-		
-		if (rd->qtcodecsettings.audioBitRate == 0) {
-			rd->qtcodecsettings.audioBitRate = 256000;
-		}
-	}
-}
-
-#endif /* _WIN32 || __APPLE__ */
-#endif /* WITH_QUICKTIME */
-
diff --git a/source/blender/quicktime/apple/qtkit_import.m b/source/blender/quicktime/apple/qtkit_import.m
deleted file mode 100644
index ba7ee0a8936..00000000000
--- a/source/blender/quicktime/apple/qtkit_import.m
+++ /dev/null
@@ -1,400 +0,0 @@
-/*
- * Code to use Quicktime to load images/movies as texture.
- *
- * ***** BEGIN GPL LICENSE BLOCK *****
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- *
- * The Original Code is written by Rob Haarsma (phase)
- *
- * Contributor(s): Stefan Gartner (sgefant)
- *				   Damien Plisson 11/2009
- *
- * ***** END GPL LICENSE BLOCK *****
- */
-#ifdef WITH_QUICKTIME
-
-#include "MEM_guardedalloc.h"
-
-#include "IMB_anim.h"
-#include "BLI_sys_types.h"
-#include "BLI_utildefines.h"
-#include "BKE_global.h"
-
-#include "BLI_dynstr.h"
-#include "BLI_path_util.h"
-
-#import <Cocoa/Cocoa.h>
-#import <QTKit/QTKit.h>
-
-#include "quicktime_import.h"
-#include "quicktime_export.h"
-
-// quicktime structure definition
-// this structure is part of the anim struct
-
-typedef struct _QuicktimeMovie {
-	QTMovie *movie;
-	QTMedia *media;
-	
-	long durationTime;
-	long durationScale;
-	long framecount;
-	
-
-	ImBuf *ibuf;
-	
-	long previousPosition;
-	
-} QuicktimeMovie;
-
-
-#define QTIME_DEBUG 0
-
-
-void quicktime_init(void)
-{
-	G.have_quicktime = true;
-}
-
-void quicktime_exit(void)
-{
-	if (G.have_quicktime) {
-		free_qtcomponentdata();
-	}
-}
-
-
-int anim_is_quicktime(const char *name)
-{
-	NSAutoreleasePool *pool;
-	
-	// don't let quicktime movie import handle these
-
-	if (BLI_testextensie_n(
-	        name,
-	        ".swf",
-	        ".txt",
-	        ".mpg",
-	        ".vob",  /* disabled, vob is essential .mpg, don't handle */
-	        ".avi",  /* wouldn't be appropriate ;) */
-	        ".mov",  /* disabled, suboptimal decoding speed */
-	        ".mp4",  /* disabled, suboptimal decoding speed */
-	        ".m4v",  /* disabled, suboptimal decoding speed */
-	        ".tga",
-	        ".png",
-	        ".bmp",
-	        ".jpg",
-	        ".tif",
-	        ".exr",
-	        ".wav",
-	        ".zip",
-	        ".mp3",
-	        NULL))
-	{
-		return 0;
-	}
-
-	if (QTIME_DEBUG) printf("qt: checking as movie: %s\n", name);
-
-	pool = [[NSAutoreleasePool alloc] init];
-	
-	if ([QTMovie canInitWithFile:[NSString stringWithCString:name
-	                              encoding:[NSString defaultCStringEncoding]]])
-	{
-		[pool drain];
-		return true;
-	}
-	else
-	{
-		[pool drain];
-		return false;
-	}
-}
-
-
-void free_anim_quicktime(struct anim *anim)
-{
-	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
-	
-	if (anim == NULL) return;
-	if (anim->qtime == NULL) return;
-
-	if (anim->qtime->ibuf)
-		IMB_freeImBuf(anim->qtime->ibuf);
-
-	[anim->qtime->media release];
-	[anim->qtime->movie release];
-
-	[QTMovie exitQTKitOnThread];
-
-	if (anim->qtime) MEM_freeN (anim->qtime);
-
-	anim->qtime = NULL;
-
-	anim->duration = 0;
-
-	[pool drain];
-}
-
-static ImBuf *nsImageToiBuf(NSImage *sourceImage, int width, int height)
-{
-	ImBuf *ibuf = NULL;
-	uchar *rasterRGB = NULL;
-	uchar *rasterRGBA = NULL;
-	uchar *toIBuf = NULL;
-	int x, y, to_i, from_i;
-	NSSize bitmapSize;
-	NSBitmapImageRep *blBitmapFormatImageRGB,*blBitmapFormatImageRGBA, *bitmapImage = nil;
-	NSEnumerator *enumerator;
-	NSImageRep *representation;
-	
-	ibuf = IMB_allocImBuf(width, height, 32, IB_rect);
-	if (!ibuf) {
-		if (QTIME_DEBUG) {
-			printf("quicktime_import: could not allocate memory for the image.\n");
-		}
-		return NULL;
-	}
-	
-	/*Get the bitmap of the image*/
-	enumerator = [[sourceImage representations] objectEnumerator];
-	while ((representation = [enumerator nextObject])) {
-		if ([representation isKindOfClass:[NSBitmapImageRep class]]) {
-			bitmapImage = (NSBitmapImageRep *)representation;
-			break;
-		}
-	}
-	if (bitmapImage == nil) return NULL;
-
-	if (([bitmapImage bitsPerPixel] == 32) && (([bitmapImage bitmapFormat] & 0x5) == 0)
-		&& ![bitmapImage isPlanar]) {
-		/* Try a fast copy if the image is a meshed RGBA 32bit bitmap*/
-		toIBuf = (uchar *)ibuf->rect;
-		rasterRGB = (uchar *)[bitmapImage bitmapData];
-		for (y = 0; y < height; y++) {
-			to_i = (height-y-1)*width;
-			from_i = y*width;
-			memcpy(toIBuf+4*to_i, rasterRGB+4*from_i, 4*width);
-		}
-	}
-	else {
-
-		bitmapSize.width = width;
-		bitmapSize.height = height;
-		
-		/* Tell cocoa image resolution is same as current system one */
-		[bitmapImage setSize:bitmapSize];
-		
-		/* Convert the image in a RGBA 32bit format */
-		/* As Core Graphics does not support contextes with non premutliplied alpha,
-		 * we need to get alpha key values in a separate batch */
-		
-		/* First get RGB values w/o Alpha to avoid pre-multiplication, 32bit but last byte is unused */
-		blBitmapFormatImageRGB = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:NULL
-																		 pixelsWide:width 
-																		 pixelsHigh:height
-																	  bitsPerSample:8 samplesPerPixel:3 hasAlpha:NO isPlanar:NO
-																	 colorSpaceName:NSDeviceRGBColorSpace 
-																	   bitmapFormat:0
-																		bytesPerRow:4*width
-																	   bitsPerPixel:32/*RGB format padded to 32bits*/];
-		
-		[NSGraphicsContext saveGraphicsState];
-		[NSGraphicsContext setCurrentContext:[NSGraphicsContext graphicsContextWithBitmapImageRep:blBitmapFormatImageRGB]];
-		[bitmapImage draw];
-		[NSGraphicsContext restoreGraphicsState];
-		
-		rasterRGB = (uchar *)[blBitmapFormatImageRGB bitmapData];
-		if (rasterRGB == NULL) {
-			[blBitmapFormatImageRGB release];
-			return NULL;
-		}
-		
-		/* Then get Alpha values by getting the RGBA image (that is premultiplied btw) */
-		blBitmapFormatImageRGBA = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:NULL
-																		  pixelsWide:width
-																		  pixelsHigh:height
-																	   bitsPerSample:8 samplesPerPixel:4 hasAlpha:YES isPlanar:NO
-																	  colorSpaceName:NSDeviceRGBColorSpace
-																		bitmapFormat:0
-																		 bytesPerRow:4*width
-																		bitsPerPixel:32/* RGBA */];
-		
-		[NSGraphicsContext saveGraphicsState];
-		[NSGraphicsContext setCurrentContext:[NSGraphicsContext graphicsContextWithBitmapImageRep:blBitmapFormatImageRGBA]];
-		[bitmapImage draw];
-		[NSGraphicsContext restoreGraphicsState];
-		
-		rasterRGBA = (uchar *)[blBitmapFormatImageRGBA bitmapData];
-		if (rasterRGBA == NULL) {
-			[blBitmapFormatImageRGB release];
-			[blBitmapFormatImageRGBA release];
-			return NULL;
-		}
-
-		/*Copy the image to ibuf, flipping it vertically*/
-		toIBuf = (uchar *)ibuf->rect;
-		for (y = 0; y < height; y++) {
-			for (x = 0; x < width; x++) {
-				to_i = (height-y-1)*width + x;
-				from_i = y*width + x;
-				
-				toIBuf[4*to_i] = rasterRGB[4*from_i]; /* R */
-				toIBuf[4*to_i+1] = rasterRGB[4*from_i+1]; /* G */
-				toIBuf[4*to_i+2] = rasterRGB[4*from_i+2]; /* B */
-				toIBuf[4*to_i+3] = rasterRGBA[4*from_i+3]; /* A */
-			}
-		}
-
-		[blBitmapFormatImageRGB release];
-		[blBitmapFormatImageRGBA release];
-	}
-	
-	return ibuf;
-}
-
-ImBuf *qtime_fetchibuf (struct anim *anim, int position)
-{
-	NSImage *frameImage;
-	QTTime time;
-	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
-	ImBuf *ibuf;
-	
-	if (anim == NULL) {
-		return (NULL);
-	}
-
-	if (position == anim->qtime->previousPosition+1) { //Optimize sequential read
-		[anim->qtime->movie stepForward];
-		frameImage = [anim->qtime->movie currentFrameImage];
-		anim->qtime->previousPosition++;
-	}
-	else {
-		time.timeScale = anim->qtime->durationScale;
-		time.timeValue = (anim->qtime->durationTime * position) / anim->qtime->framecount;
-	
-		[anim->qtime->movie setCurrentTime:time];
-		frameImage = [anim->qtime->movie currentFrameImage]; 
-		
-		anim->qtime->previousPosition = position;
-	}
-		
-	if (frameImage == nil) {
-		if (QTIME_DEBUG) printf ("Error reading frame from Quicktime");
-		[pool drain];
-		return NULL;
-	}
-
-	ibuf = nsImageToiBuf(frameImage,anim->x, anim->y);
-	[pool drain];
-	
-	return ibuf;
-}
-
-
-int startquicktime(struct anim *anim)
-{
-	NSAutoreleasePool *pool;
-	NSArray* videoTracks;
-	NSSize frameSize;
-	QTTime qtTimeDuration;
-	NSDictionary *attributes;
-	
-	anim->qtime = MEM_callocN(sizeof(QuicktimeMovie),"animqt");
-
-	if (anim->qtime == NULL) {
-		if (QTIME_DEBUG) printf("Can't alloc qtime: %s\n", anim->name);
-		return -1;
-	}
-
-	pool = [[NSAutoreleasePool alloc] init];
-	
-	[QTMovie enterQTKitOnThread];
-
-	attributes = [NSDictionary dictionaryWithObjectsAndKeys:
-	        [NSString stringWithCString:anim->name
-	        encoding:[NSString defaultCStringEncoding]], QTMovieFileNameAttribute,
-	        [NSNumber numberWithBool:NO], QTMovieEditableAttribute,
-	    nil];
-
-	anim->qtime->movie = [QTMovie movieWithAttributes:attributes error:NULL];
-	
-	if (!anim->qtime->movie) {
-		if (QTIME_DEBUG) printf("qt: bad movie %s\n", anim->name);
-		MEM_freeN(anim->qtime);
-		if (QTIME_DEBUG) printf("qt: can't load %s\n", anim->name);
-		[QTMovie exitQTKitOnThread];
-		[pool drain];
-		return -1;
-	}
-	[anim->qtime->movie retain];
-
-	// sets Media and Track!
-	
-	videoTracks = [anim->qtime->movie tracksOfMediaType:QTMediaTypeVideo];
-	
-	if ([videoTracks count] == 0) {
-		if (QTIME_DEBUG) printf("qt: no video tracks for movie %s\n", anim->name);
-		[anim->qtime->movie release];
-		MEM_freeN(anim->qtime);
-		if (QTIME_DEBUG) printf("qt: can't load %s\n", anim->name);
-		[QTMovie exitQTKitOnThread];
-		[pool drain];
-		return -1;
-	}
-	
-	anim->qtime->media = [[videoTracks objectAtIndex:0] media];
-	[anim->qtime->media retain];
-	
-	
-	frameSize = [[anim->qtime->movie attributeForKey:QTMovieNaturalSizeAttribute] sizeValue];
-	anim->x = frameSize.width;
-	anim->y = frameSize.height;
-
-	if (anim->x == 0 && anim->y == 0) {
-		if (QTIME_DEBUG) printf("qt: error, no dimensions\n");
-		free_anim_quicktime(anim);
-		[pool drain];
-		return -1;
-	}
-
-	anim->qtime->ibuf = IMB_allocImBuf(anim->x, anim->y, 32, IB_rect);
-	
-	qtTimeDuration = [[anim->qtime->media attributeForKey:QTMediaDurationAttribute] QTTimeValue];
-	anim->qtime->durationTime = qtTimeDuration.timeValue;
-	anim->qtime->durationScale = qtTimeDuration.timeScale;
-	
-	anim->qtime->framecount = [[anim->qtime->media attributeForKey:QTMediaSampleCountAttribute] longValue];
-	anim->qtime->previousPosition = -2; //Force seeking for first read
-	
-	//fill blender's anim struct
-
-	anim->duration = anim->qtime->framecount;
-	anim->params = 0;
-
-	anim->interlacing = 0;
-	anim->orientation = 0;
-	anim->framesize = anim->x * anim->y * 4;
-
-	anim->curposition = 0;
-
-	[pool drain];
-
-	return 0;
-}
-
-#endif /* WITH_QUICKTIME */
-
diff --git a/source/blender/quicktime/quicktime_export.h b/source/blender/quicktime/quicktime_export.h
deleted file mode 100644
index aaa3f5c9070..00000000000
--- a/source/blender/quicktime/quicktime_export.h
+++ /dev/null
@@ -1,162 +0,0 @@
-/*
- * ***** BEGIN GPL LICENSE BLOCK *****
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
- * All rights reserved.
- *
- * The Original Code is: all of this file.
- *
- * Contributor(s): none yet.
- *
- * ***** END GPL LICENSE BLOCK *****
- */
-
-/** \file blender/quicktime/quicktime_export.h
- *  \ingroup quicktime
- */
-
-
-#ifndef __QUICKTIME_EXPORT_H__
-#define __QUICKTIME_EXPORT_H__
-
-#if defined (_WIN32) || (__APPLE__)
-
-#define __AIFF__
-
-
-#define QTAUDIO_FLAG_RESAMPLE_NOHQ 1
-#define QTAUDIO_FLAG_CODEC_ISCBR 2
-
-
-/*Codec list*/
-typedef struct QuicktimeCodecTypeDesc {
-	int codecType;
-	int rnatmpvalue;
-	const char *codecName;
-} QuicktimeCodecTypeDesc;
-
-// quicktime movie output functions
-struct ImageFormatData;
-struct RenderData;
-struct ReportList;
-struct Scene;
-
-int start_qt(void *context_v, struct Scene *scene, struct RenderData *rd, int rectx, int recty, struct ReportList *reports, bool preview, const char *suffix);	//for movie handle (BKE writeavi.c now)
-int append_qt(void *context_v, struct RenderData *rd, int start_frame, int frame, int *pixels, int rectx, int recty, const char *suffix, struct ReportList *reports);
-void end_qt(void *context_v);
-void filepath_qt(char *string, struct RenderData *rd, bool preview, const char *suffix);
-void *context_create_qt(void);
-void context_free_qt(void *context_v);
-
-/*RNA helper functions */
-void quicktime_verify_image_type(struct RenderData *rd, struct ImageFormatData *imf); //used by RNA for defaults values init, if needed
-/*Video codec type*/
-int quicktime_get_num_videocodecs(void);
-QuicktimeCodecTypeDesc *quicktime_get_videocodecType_desc(int indexValue);
-int quicktime_rnatmpvalue_from_videocodectype(int codecType);
-int quicktime_videocodecType_from_rnatmpvalue(int rnatmpvalue);
-
-/*Audio codec type*/
-int quicktime_get_num_audiocodecs(void);
-QuicktimeCodecTypeDesc *quicktime_get_audiocodecType_desc(int indexValue);
-int quicktime_rnatmpvalue_from_audiocodectype(int codecType);
-int quicktime_audiocodecType_from_rnatmpvalue(int rnatmpvalue);
-
-void free_qtcomponentdata(void);
-void makeqtstring(struct RenderData *rd, char *string, bool preview);		//for playanim.c
-
-
-#ifdef __APPLE__
-//Include the quicktime codec types constants that are missing in QTKitDefines.h
-enum {
-	kRawCodecType						= 'raw ',
-	kCinepakCodecType 					= 'cvid',
-	kGraphicsCodecType					= 'smc ',
-	kAnimationCodecType 				= 'rle ',
-	kVideoCodecType 					= 'rpza',
-	kComponentVideoCodecType			= 'yuv2',
-	kJPEGCodecType						= 'jpeg',
-	kMotionJPEGACodecType 				= 'mjpa',
-	kMotionJPEGBCodecType 				= 'mjpb',
-	kSGICodecType 						= '.SGI',
-	kPlanarRGBCodecType 				= '8BPS',
-	kMacPaintCodecType					= 'PNTG',
-	kGIFCodecType 						= 'gif ',
-	kPhotoCDCodecType 					= 'kpcd',
-	kQuickDrawGXCodecType 				= 'qdgx',
-	kAVRJPEGCodecType 					= 'avr ',
-	kOpenDMLJPEGCodecType 				= 'dmb1',
-	kBMPCodecType 						= 'WRLE',
-	kWindowsRawCodecType				= 'WRAW',
-	kVectorCodecType					= 'path',
-	kQuickDrawCodecType 				= 'qdrw',
-	kWaterRippleCodecType 				= 'ripl',
-	kFireCodecType						= 'fire',
-	kCloudCodecType 					= 'clou',
-	kH261CodecType						= 'h261',
-	kH263CodecType						= 'h263',
-	kDVCNTSCCodecType					= 'dvc ',	/* DV - NTSC and DVCPRO NTSC (available in QuickTime 6.0 or later)*/
-	/* NOTE: kDVCProNTSCCodecType is deprecated.	*/
-	/* Use kDVCNTSCCodecType instead -- as far as the codecs are concerned, */
-	/* the two data formats are identical.*/
-	kDVCPALCodecType					= 'dvcp',
-	kDVCProPALCodecType 				= 'dvpp',	/* available in QuickTime 6.0 or later*/
-	kDVCPro50NTSCCodecType				= 'dv5n',
-	kDVCPro50PALCodecType 				= 'dv5p',
-	kDVCPro100NTSCCodecType 			= 'dv1n',
-	kDVCPro100PALCodecType				= 'dv1p',
-	kDVCPROHD720pCodecType				= 'dvhp',
-	kDVCPROHD1080i60CodecType			= 'dvh6',
-	kDVCPROHD1080i50CodecType			= 'dvh5',
-	kBaseCodecType						= 'base',
-	kFLCCodecType 						= 'flic',
-	kTargaCodecType 					= 'tga ',
-	kPNGCodecType 						= 'png ',
-	kTIFFCodecType						= 'tiff',	/* NOTE: despite what might seem obvious from the two constants*/
-	/* below and their names, they really are correct. 'yuvu' really */
-	/* does mean signed, and 'yuvs' really does mean unsigned. Really. */
-	kComponentVideoSigned 				= 'yuvu',
-	kComponentVideoUnsigned 			= 'yuvs',
-	kCMYKCodecType						= 'cmyk',
-	kMicrosoftVideo1CodecType			= 'msvc',
-	kSorensonCodecType					= 'SVQ1',
-	kSorenson3CodecType 				= 'SVQ3',	/* available in QuickTime 5 and later*/
-	kIndeo4CodecType					= 'IV41',
-	kMPEG4VisualCodecType 				= 'mp4v',
-	k64ARGBCodecType					= 'b64a',
-	k48RGBCodecType 					= 'b48r',
-	k32AlphaGrayCodecType 				= 'b32a',
-	k16GrayCodecType					= 'b16g',
-	kMpegYUV420CodecType				= 'myuv',
-	kYUV420CodecType					= 'y420',
-	kSorensonYUV9CodecType				= 'syv9',
-	k422YpCbCr8CodecType				= '2vuy',	/* Component Y'CbCr 8-bit 4:2:2	*/
-	k444YpCbCr8CodecType				= 'v308',	/* Component Y'CbCr 8-bit 4:4:4	*/
-	k4444YpCbCrA8CodecType				= 'v408',	/* Component Y'CbCrA 8-bit 4:4:4:4 */
-	k422YpCbCr16CodecType 				= 'v216',	/* Component Y'CbCr 10,12,14,16-bit 4:2:2*/
-	k422YpCbCr10CodecType 				= 'v210',	/* Component Y'CbCr 10-bit 4:2:2 */
-	k444YpCbCr10CodecType 				= 'v410',	/* Component Y'CbCr 10-bit 4:4:4 */
-	k4444YpCbCrA8RCodecType 			= 'r408',	/* Component Y'CbCrA 8-bit 4:4:4:4, rendering format. full range alpha, zero biased yuv*/
-	kJPEG2000CodecType					= 'mjp2',
-	kPixletCodecType					= 'pxlt',
-	kH264CodecType						= 'avc1'
-};
-#endif
-
-#endif /* (_WIN32) || (__APPLE__) */
-
-#endif  /* __QUICKTIME_IMP_H__ */
diff --git a/source/blender/quicktime/quicktime_import.h b/source/blender/quicktime/quicktime_import.h
deleted file mode 100644
index 3c6b2028031..00000000000
--- a/source/blender/quicktime/quicktime_import.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Quicktime_import.h
- *
- *
- * ***** BEGIN GPL LICENSE BLOCK *****
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * The Original Code is Copyright (C) 2002-2003 by TNCCI Inc.
- * All rights reserved.
- *
- * The Original Code is: all of this file.
- *
- * Contributor(s): none yet.
- *
- * ***** END GPL LICENSE BLOCK *****
- */
-
-/** \file blender/quicktime/quicktime_import.h
- *  \ingroup quicktime
- */
-
-
-
-#ifndef __QUICKTIME_IMPORT_H__
-#define __QUICKTIME_IMPORT_H__
-
-#define __AIFF__
-
-#include "../imbuf/IMB_imbuf.h"
-#include "../imbuf/IMB_imbuf_types.h"
-
-#ifdef _WIN32
-#  ifndef __FIXMATH__
-#    include <FixMath.h>
-#  endif /* __FIXMATH__ */
-#endif /* _WIN32 _ */
-
-/* init/exit */
-
-void quicktime_init(void);
-void quicktime_exit(void);
-
-/* quicktime movie import functions */
-
-int		anim_is_quicktime(const char *name);
-int		startquicktime(struct anim *anim);
-void	free_anim_quicktime(struct anim *anim);
-ImBuf  *qtime_fetchibuf(struct anim *anim, int position);
-
-#endif  /* __QUICKTIME_IMPORT_H__ */
diff --git a/source/blender/render/CMakeLists.txt b/source/blender/render/CMakeLists.txt
index a12bdd910c3..27ec6bf8ba6 100644
--- a/source/blender/render/CMakeLists.txt
+++ b/source/blender/render/CMakeLists.txt
@@ -148,16 +148,6 @@ if(WITH_FREESTYLE)
 	add_definitions(-DWITH_FREESTYLE)
 endif()
 
-if(WITH_CODEC_QUICKTIME)
-	list(APPEND INC
-		../quicktime
-	)
-	list(APPEND INC_SYS
-		${QUICKTIME_INCLUDE_DIRS}
-	)
-	add_definitions(-DWITH_QUICKTIME)
-endif()
-
 if(WITH_GAMEENGINE)
 	add_definitions(-DWITH_GAMEENGINE)
 endif()
diff --git a/source/blender/render/extern/include/RE_pipeline.h b/source/blender/render/extern/include/RE_pipeline.h
index 0d2e29ba4c8..cf9298bdb9e 100644
--- a/source/blender/render/extern/include/RE_pipeline.h
+++ b/source/blender/render/extern/include/RE_pipeline.h
@@ -194,6 +194,10 @@ typedef struct RenderStats {
 struct Render *RE_NewRender(const char *name);
 struct Render *RE_GetRender(const char *name);
 
+struct Scene;
+struct Render *RE_NewSceneRender(const struct Scene *scene);
+struct Render *RE_GetSceneRender(const struct Scene *scene);
+
 /* assign default dummy callbacks */
 void RE_InitRenderCB(struct Render *re);
 
diff --git a/source/blender/render/intern/include/shading.h b/source/blender/render/intern/include/shading.h
index 13f16ce0bd7..3ef6e9d7476 100644
--- a/source/blender/render/intern/include/shading.h
+++ b/source/blender/render/intern/include/shading.h
@@ -57,7 +57,7 @@ typedef struct ShadeSample {
 void shade_material_loop(struct ShadeInput *shi, struct ShadeResult *shr);
 
 void shade_input_set_triangle_i(struct ShadeInput *shi, struct ObjectInstanceRen *obi, struct VlakRen *vlr, short i1, short i2, short i3);
-void shade_input_set_triangle(struct ShadeInput *shi, volatile int obi, volatile int facenr, int normal_flip);
+void shade_input_set_triangle(struct ShadeInput *shi, int obi, int facenr, int normal_flip);
 void shade_input_copy_triangle(struct ShadeInput *shi, struct ShadeInput *from);
 void shade_input_calc_viewco(struct ShadeInput *shi, float x, float y, float z, float view[3], float dxyview[2], float co[3], float dxco[3], float dyco[3]);
 void shade_input_set_viewco(struct ShadeInput *shi, float x, float y, float sx, float sy, float z);
diff --git a/source/blender/render/intern/raytrace/rayobject_rtbuild.cpp b/source/blender/render/intern/raytrace/rayobject_rtbuild.cpp
index 81e41a20f2e..103fa3e6034 100644
--- a/source/blender/render/intern/raytrace/rayobject_rtbuild.cpp
+++ b/source/blender/render/intern/raytrace/rayobject_rtbuild.cpp
@@ -59,6 +59,7 @@ static void rtbuild_init(RTBuilder *b)
 	b->primitives.begin   = NULL;
 	b->primitives.end     = NULL;
 	b->primitives.maxsize = 0;
+	b->depth = 0;
 	
 	for (int i = 0; i < RTBUILD_MAX_CHILDS; i++)
 		b->child_offset[i] = 0;
@@ -178,6 +179,8 @@ RTBuilder *rtbuild_get_child(RTBuilder *b, int child, RTBuilder *tmp)
 {
 	rtbuild_init(tmp);
 
+	tmp->depth = b->depth + 1;
+
 	for (int i = 0; i < 3; i++)
 		if (b->sorted_begin[i]) {
 			tmp->sorted_begin[i] = b->sorted_begin[i] +  b->child_offset[child];
@@ -336,6 +339,15 @@ int rtbuild_heuristic_object_split(RTBuilder *b, int nchilds)
 	int baxis = -1, boffset = 0;
 
 	if (size > nchilds) {
+		if (b->depth > RTBUILD_MAX_SAH_DEPTH) {
+			// for degenerate cases we avoid running out of stack space
+			// by simply splitting the children in the middle
+			b->child_offset[0] = 0;
+			b->child_offset[1] = (size+1)/2;
+			b->child_offset[2] = size;
+			return 2;
+		}
+
 		float bcost = FLT_MAX;
 		baxis = -1;
 		boffset = size / 2;
diff --git a/source/blender/render/intern/raytrace/rayobject_rtbuild.h b/source/blender/render/intern/raytrace/rayobject_rtbuild.h
index 9e296da144b..83042ef3d7e 100644
--- a/source/blender/render/intern/raytrace/rayobject_rtbuild.h
+++ b/source/blender/render/intern/raytrace/rayobject_rtbuild.h
@@ -49,7 +49,8 @@ extern "C" {
  * generate with simple calls, and then convert to the theirs
  * specific structure on the fly.
  */
-#define RTBUILD_MAX_CHILDS 32
+#define RTBUILD_MAX_CHILDS     32
+#define RTBUILD_MAX_SAH_DEPTH  256
 
 
 typedef struct RTBuilder {
@@ -79,6 +80,8 @@ typedef struct RTBuilder {
 	
 	float bb[6];
 
+	/* current depth */
+	int depth;
 } RTBuilder;
 
 /* used during creation */
diff --git a/source/blender/render/intern/source/imagetexture.c b/source/blender/render/intern/source/imagetexture.c
index 04010522c12..ae02cf56b88 100644
--- a/source/blender/render/intern/source/imagetexture.c
+++ b/source/blender/render/intern/source/imagetexture.c
@@ -1172,7 +1172,7 @@ static int imagewraposa_aniso(Tex *tex, Image *ima, ImBuf *ibuf, const float tex
 			a = max_ff(a, 1.0f);
 			b = max_ff(b, 1.0f);
 			fProbes = 2.f*(a / b) - 1.f;
-			AFD.iProbes = iroundf(fProbes);
+			AFD.iProbes = round_fl_to_int(fProbes);
 			AFD.iProbes = MIN2(AFD.iProbes, tex->afmax);
 			if (AFD.iProbes < fProbes)
 				b = 2.f*a / (float)(AFD.iProbes + 1);
@@ -1277,7 +1277,7 @@ static int imagewraposa_aniso(Tex *tex, Image *ima, ImBuf *ibuf, const float tex
 			b = max_ff(b, 1.0f);
 			fProbes = 2.f*(a / b) - 1.f;
 			/* no limit to number of Probes here */
-			AFD.iProbes = iroundf(fProbes);
+			AFD.iProbes = round_fl_to_int(fProbes);
 			if (AFD.iProbes < fProbes) b = 2.f*a / (float)(AFD.iProbes + 1);
 			AFD.majrad = a/ff;
 			AFD.minrad = b/ff;
diff --git a/source/blender/render/intern/source/initrender.c b/source/blender/render/intern/source/initrender.c
index 970a3937657..fbf18405093 100644
--- a/source/blender/render/intern/source/initrender.c
+++ b/source/blender/render/intern/source/initrender.c
@@ -48,10 +48,6 @@
 
 #include "BKE_camera.h"
 
-#ifdef WITH_QUICKTIME
-#include "quicktime_export.h"
-#endif
-
 /* this module */
 #include "renderpipeline.h"
 #include "render_types.h"
diff --git a/source/blender/render/intern/source/pipeline.c b/source/blender/render/intern/source/pipeline.c
index e078365e1ed..a0ebe241569 100644
--- a/source/blender/render/intern/source/pipeline.c
+++ b/source/blender/render/intern/source/pipeline.c
@@ -307,7 +307,6 @@ Render *RE_GetRender(const char *name)
 	return re;
 }
 
-
 /* if you want to know exactly what has been done */
 RenderResult *RE_AcquireResultRead(Render *re)
 {
@@ -514,6 +513,36 @@ Render *RE_NewRender(const char *name)
 	return re;
 }
 
+/* MAX_ID_NAME + sizeof(Library->name) + space + null-terminator. */
+#define MAX_SCENE_RENDER_NAME (MAX_ID_NAME + 1024 + 2)
+
+static void scene_render_name_get(const Scene *scene,
+                                  const size_t max_size,
+                                  char *render_name)
+{
+	if (ID_IS_LINKED_DATABLOCK(scene)) {
+		BLI_snprintf(render_name, max_size, "%s %s",
+		             scene->id.lib->id.name, scene->id.name);
+	}
+	else {
+		BLI_snprintf(render_name, max_size, "%s", scene->id.name);
+	}
+}
+
+Render *RE_GetSceneRender(const Scene *scene)
+{
+	char render_name[MAX_SCENE_RENDER_NAME];
+	scene_render_name_get(scene, sizeof(render_name), render_name);
+	return RE_GetRender(render_name);
+}
+
+Render *RE_NewSceneRender(const Scene *scene)
+{
+	char render_name[MAX_SCENE_RENDER_NAME];
+	scene_render_name_get(scene, sizeof(render_name), render_name);
+	return RE_NewRender(render_name);
+}
+
 /* called for new renders and when finishing rendering so
  * we always have valid callbacks on a render */
 void RE_InitRenderCB(Render *re)
@@ -1913,7 +1942,7 @@ static void do_render_fields_blur_3d(Render *re)
  */
 static void render_scene(Render *re, Scene *sce, int cfra)
 {
-	Render *resc = RE_NewRender(sce->id.name);
+	Render *resc = RE_NewSceneRender(sce);
 	int winx = re->winx, winy = re->winy;
 	
 	sce->r.cfra = cfra;
@@ -2348,7 +2377,7 @@ static void do_merge_fullsample(Render *re, bNodeTree *ntree)
 		tag_scenes_for_render(re);
 		for (sce = re->main->scene.first; sce; sce = sce->id.next) {
 			if (sce->id.tag & LIB_TAG_DOIT) {
-				re1 = RE_GetRender(sce->id.name);
+				re1 = RE_GetSceneRender(sce);
 
 				if (re1 && (re1->r.scemode & R_FULL_SAMPLE)) {
 					if (sample) {
@@ -3858,9 +3887,9 @@ bool RE_ReadRenderResult(Scene *scene, Scene *scenode)
 		scene = scenode;
 	
 	/* get render: it can be called from UI with draw callbacks */
-	re = RE_GetRender(scene->id.name);
+	re = RE_GetSceneRender(scene);
 	if (re == NULL)
-		re = RE_NewRender(scene->id.name);
+		re = RE_NewSceneRender(scene);
 	RE_InitState(re, NULL, &scene->r, NULL, winx, winy, &disprect);
 	re->scene = scene;
 	re->scene_color_manage = BKE_scene_check_color_management_enabled(scene);
diff --git a/source/blender/render/intern/source/shadeinput.c b/source/blender/render/intern/source/shadeinput.c
index 20602314526..b4ff5f52fcf 100644
--- a/source/blender/render/intern/source/shadeinput.c
+++ b/source/blender/render/intern/source/shadeinput.c
@@ -292,12 +292,8 @@ void shade_input_set_triangle_i(ShadeInput *shi, ObjectInstanceRen *obi, VlakRen
 	}
 }
 
-/* note, facenr declared volatile due to over-eager -O2 optimization's
- * on cygwin (particularly -frerun-cse-after-loop)
- */
-
 /* copy data from face to ShadeInput, scanline case */
-void shade_input_set_triangle(ShadeInput *shi, volatile int obi, volatile int facenr, int UNUSED(normal_flip))
+void shade_input_set_triangle(ShadeInput *shi, int obi, int facenr, int UNUSED(normal_flip))
 {
 	if (facenr > 0) {
 		shi->obi = &R.objectinstance[obi];
diff --git a/source/blender/render/intern/source/zbuf.c b/source/blender/render/intern/source/zbuf.c
index 68707f163af..1481e7a8059 100644
--- a/source/blender/render/intern/source/zbuf.c
+++ b/source/blender/render/intern/source/zbuf.c
@@ -393,7 +393,7 @@ static void zbuffillAc4(ZSpan *zspan, int obi, int zvlnr,
 			zverg-= zspan->polygon_offset;
 			
 			while (x>=0) {
-				intzverg= (int)CLAMPIS(zverg, INT_MIN, INT_MAX);
+				intzverg = round_db_to_int_clamp(zverg);
 
 				if ( intzverg < *rz) {
 					if (!zspan->rectmask || intzverg > *rm) {
@@ -1137,7 +1137,7 @@ static void zbuffillGLinv4(ZSpan *zspan, int obi, int zvlnr,
 			x= sn2-sn1;
 
 			while (x>=0) {
-				intzverg= (int)CLAMPIS(zverg, INT_MIN, INT_MAX);
+				intzverg = round_db_to_int_clamp(zverg);
 
 				if ( intzverg > *rz || *rz==0x7FFFFFFF) { /* UNIQUE LINE: see comment above */
 					if (!zspan->rectmask || intzverg > *rm) {
@@ -1260,7 +1260,7 @@ static void zbuffillGL4(ZSpan *zspan, int obi, int zvlnr,
 			x= sn2-sn1;
 
 			while (x>=0) {
-				intzverg= (int)CLAMPIS(zverg, INT_MIN, INT_MAX);
+				intzverg = round_db_to_int_clamp(zverg);
 
 				if (intzverg < *rz) { /* ONLY UNIQUE LINE: see comment above */
 					if (!zspan->rectmask || intzverg > *rm) {
@@ -1383,7 +1383,7 @@ static void zbuffillGL_onlyZ(ZSpan *zspan, int UNUSED(obi), int UNUSED(zvlnr),
 			x= sn2-sn1;
 			
 			while (x>=0) {
-				int zvergi= (int)CLAMPIS(zverg, INT_MIN, INT_MAX);
+				int zvergi = round_db_to_int_clamp(zverg);
 
 				/* option: maintain two depth values, closest and 2nd closest */
 				if (zvergi < *rz) {
@@ -1564,20 +1564,13 @@ void zspan_scanconvert(ZSpan *zspan, void *handle, float *v1, float *v2, float *
 	vy0= ((double)my2)*vyd + (double)xx1;
 	
 	/* correct span */
-	sn1= (my0 + my2)/2;
-	if (zspan->span1[sn1] < zspan->span2[sn1]) {
-		span1= zspan->span1+my2;
-		span2= zspan->span2+my2;
-	}
-	else {
-		span1= zspan->span2+my2;
-		span2= zspan->span1+my2;
-	}
+	span1= zspan->span1+my2;
+	span2= zspan->span2+my2;
 	
 	for (i = 0, y = my2; y >= my0; i++, y--, span1--, span2--) {
 		
-		sn1= floor(*span1);
-		sn2= floor(*span2);
+		sn1= floor(min_ff(*span1, *span2));
+		sn2= floor(max_ff(*span1, *span2));
 		sn1++; 
 		
 		if (sn2>=rectx) sn2= rectx-1;
diff --git a/source/blender/windowmanager/CMakeLists.txt b/source/blender/windowmanager/CMakeLists.txt
index 925563a0777..f22ed34ca2e 100644
--- a/source/blender/windowmanager/CMakeLists.txt
+++ b/source/blender/windowmanager/CMakeLists.txt
@@ -100,16 +100,6 @@ if(WITH_OPENCOLLADA)
 	add_definitions(-DWITH_COLLADA)
 endif()
 
-if(WITH_CODEC_QUICKTIME)
-	list(APPEND INC
-		../quicktime
-	)
-	list(APPEND INC_SYS
-		${QUICKTIME_INCLUDE_DIRS}
-	)
-	add_definitions(-DWITH_QUICKTIME)
-endif()
-
 if(WITH_CODEC_FFMPEG)
 	list(APPEND INC_SYS
 		${FFMPEG_INCLUDE_DIRS}
diff --git a/source/blender/windowmanager/WM_api.h b/source/blender/windowmanager/WM_api.h
index 60a39b24208..7c1c388bcba 100644
--- a/source/blender/windowmanager/WM_api.h
+++ b/source/blender/windowmanager/WM_api.h
@@ -187,8 +187,9 @@ struct wmEventHandler *WM_event_add_dropbox_handler(ListBase *handlers, ListBase
 
 			/* mouse */
 void		WM_event_add_mousemove(struct bContext *C);
-bool        WM_modal_tweak_exit(const struct wmEvent *event, int tweak_event);
+bool		WM_event_is_modal_tweak_exit(const struct wmEvent *event, int tweak_event);
 bool		WM_event_is_absolute(const struct wmEvent *event);
+bool		WM_event_is_last_mousemove(const struct wmEvent *event);
 
 #ifdef WITH_INPUT_NDOF
 			/* 3D mouse */
@@ -353,6 +354,7 @@ bool         WM_operator_pystring_abbreviate(char *str, int str_len_max);
 char		*WM_prop_pystring_assign(struct bContext *C, struct PointerRNA *ptr, struct PropertyRNA *prop, int index);
 void		WM_operator_bl_idname(char *to, const char *from);
 void		WM_operator_py_idname(char *to, const char *from);
+bool        WM_operator_py_idname_ok_or_report(struct ReportList *reports, const char *classname, const char *idname);
 
 /* *************** uilist types ******************** */
 void                WM_uilisttype_init(void);
diff --git a/source/blender/windowmanager/intern/wm.c b/source/blender/windowmanager/intern/wm.c
index 67e961b9cd0..a09cc4aeb31 100644
--- a/source/blender/windowmanager/intern/wm.c
+++ b/source/blender/windowmanager/intern/wm.c
@@ -430,7 +430,7 @@ void wm_clear_default_size(bContext *C)
 /* on startup, it adds all data, for matching */
 void wm_add_default(bContext *C)
 {
-	wmWindowManager *wm = BKE_libblock_alloc(CTX_data_main(C), ID_WM, "WinMan");
+	wmWindowManager *wm = BKE_libblock_alloc(CTX_data_main(C), ID_WM, "WinMan", 0);
 	wmWindow *win;
 	bScreen *screen = CTX_wm_screen(C); /* XXX from file read hrmf */
 	
@@ -495,6 +495,10 @@ void wm_close_and_free_all(bContext *C, ListBase *wmlist)
 
 void WM_main(bContext *C)
 {
+	/* Single refresh before handling events.
+	 * This ensures we don't run operators before the depsgraph has been evaluated. */
+	wm_event_do_refresh_wm_and_depsgraph(C);
+
 	while (1) {
 		
 		/* get events from ghost, handle window events, add to window queues */
diff --git a/source/blender/windowmanager/intern/wm_draw.c b/source/blender/windowmanager/intern/wm_draw.c
index 25c6980f58e..2b695c95258 100644
--- a/source/blender/windowmanager/intern/wm_draw.c
+++ b/source/blender/windowmanager/intern/wm_draw.c
@@ -867,25 +867,13 @@ static bool wm_draw_update_test_window(wmWindow *win)
 
 static int wm_automatic_draw_method(wmWindow *win)
 {
-	/* Ideally all cards would work well with triple buffer, since if it works
-	 * well gives the least redraws and is considerably faster at partial redraw
-	 * for sculpting or drawing overlapping menus. For typically lower end cards
-	 * copy to texture is slow though and so we use overlap instead there. */
-
+	/* We assume all supported GPUs now support triple buffer well. */
 	if (win->drawmethod == USER_DRAW_AUTOMATIC) {
-		/* Windows software driver darkens color on each redraw */
-		if (GPU_type_matches(GPU_DEVICE_SOFTWARE, GPU_OS_WIN, GPU_DRIVER_SOFTWARE))
-			return USER_DRAW_OVERLAP_FLIP;
-		else if (GPU_type_matches(GPU_DEVICE_SOFTWARE, GPU_OS_UNIX, GPU_DRIVER_SOFTWARE))
-			return USER_DRAW_OVERLAP;
-		/* drawing lower color depth again degrades colors each time */
-		else if (GPU_color_depth() < 24)
-			return USER_DRAW_OVERLAP;
-		else
-			return USER_DRAW_TRIPLE;
+		return USER_DRAW_TRIPLE;
 	}
-	else
+	else {
 		return win->drawmethod;
+	}
 }
 
 bool WM_is_draw_triple(wmWindow *win)
diff --git a/source/blender/windowmanager/intern/wm_event_system.c b/source/blender/windowmanager/intern/wm_event_system.c
index f26ee0e73ec..7e7314cc0c8 100644
--- a/source/blender/windowmanager/intern/wm_event_system.c
+++ b/source/blender/windowmanager/intern/wm_event_system.c
@@ -263,13 +263,56 @@ static void wm_notifier_clear(wmNotifier *note)
 	memset(((char *)note) + sizeof(Link), 0, sizeof(*note) - sizeof(Link));
 }
 
+/**
+ * Was part of #wm_event_do_notifiers, split out so it can be called once before entering the #WM_main loop.
+ * This ensures operators don't run before the UI and depsgraph are initialized.
+ */
+void wm_event_do_refresh_wm_and_depsgraph(bContext *C)
+{
+	wmWindowManager *wm = CTX_wm_manager(C);
+	uint64_t win_combine_v3d_datamask = 0;
+
+	/* combine datamasks so 1 win doesn't disable UV's in another [#26448] */
+	for (wmWindow *win = wm->windows.first; win; win = win->next) {
+		win_combine_v3d_datamask |= ED_view3d_screen_datamask(win->screen);
+	}
+
+	/* cached: editor refresh callbacks now, they get context */
+	for (wmWindow *win = wm->windows.first; win; win = win->next) {
+		ScrArea *sa;
+
+		CTX_wm_window_set(C, win);
+		for (sa = win->screen->areabase.first; sa; sa = sa->next) {
+			if (sa->do_refresh) {
+				CTX_wm_area_set(C, sa);
+				ED_area_do_refresh(C, sa);
+			}
+		}
+
+		/* XXX make lock in future, or separated derivedmesh users in scene */
+		if (G.is_rendering == false) {
+			/* depsgraph & animation: update tagged datablocks */
+			Main *bmain = CTX_data_main(C);
+
+			/* copied to set's in scene_update_tagged_recursive() */
+			win->screen->scene->customdata_mask = win_combine_v3d_datamask;
+
+			/* XXX, hack so operators can enforce datamasks [#26482], gl render */
+			win->screen->scene->customdata_mask |= win->screen->scene->customdata_mask_modal;
+
+			BKE_scene_update_tagged(bmain->eval_ctx, bmain, win->screen->scene);
+		}
+	}
+
+	CTX_wm_window_set(C, NULL);
+}
+
 /* called in mainloop */
 void wm_event_do_notifiers(bContext *C)
 {
 	wmWindowManager *wm = CTX_wm_manager(C);
 	wmNotifier *note, *next;
 	wmWindow *win;
-	uint64_t win_combine_v3d_datamask = 0;
 	
 	if (wm == NULL)
 		return;
@@ -373,39 +416,7 @@ void wm_event_do_notifiers(bContext *C)
 		MEM_freeN(note);
 	}
 	
-	/* combine datamasks so 1 win doesn't disable UV's in another [#26448] */
-	for (win = wm->windows.first; win; win = win->next) {
-		win_combine_v3d_datamask |= ED_view3d_screen_datamask(win->screen);
-	}
-
-	/* cached: editor refresh callbacks now, they get context */
-	for (win = wm->windows.first; win; win = win->next) {
-		ScrArea *sa;
-		
-		CTX_wm_window_set(C, win);
-		for (sa = win->screen->areabase.first; sa; sa = sa->next) {
-			if (sa->do_refresh) {
-				CTX_wm_area_set(C, sa);
-				ED_area_do_refresh(C, sa);
-			}
-		}
-		
-		/* XXX make lock in future, or separated derivedmesh users in scene */
-		if (G.is_rendering == false) {
-			/* depsgraph & animation: update tagged datablocks */
-			Main *bmain = CTX_data_main(C);
-
-			/* copied to set's in scene_update_tagged_recursive() */
-			win->screen->scene->customdata_mask = win_combine_v3d_datamask;
-
-			/* XXX, hack so operators can enforce datamasks [#26482], gl render */
-			win->screen->scene->customdata_mask |= win->screen->scene->customdata_mask_modal;
-
-			BKE_scene_update_tagged(bmain->eval_ctx, bmain, win->screen->scene);
-		}
-	}
-
-	CTX_wm_window_set(C, NULL);
+	wm_event_do_refresh_wm_and_depsgraph(C);
 }
 
 static int wm_event_always_pass(const wmEvent *event)
@@ -615,6 +626,16 @@ bool WM_event_is_absolute(const wmEvent *event)
 	return (event->tablet_data != NULL);
 }
 
+bool WM_event_is_last_mousemove(const wmEvent *event)
+{
+	while ((event = event->next)) {
+		if (ELEM(event->type, MOUSEMOVE, INBETWEEN_MOUSEMOVE)) {
+			return false;
+		}
+	}
+	return true;
+}
+
 #ifdef WITH_INPUT_NDOF
 void WM_ndof_deadzone_set(float deadzone)
 {
@@ -1079,6 +1100,9 @@ bool WM_operator_last_properties_store(wmOperator *UNUSED(op))
 
 #endif
 
+/**
+ * Also used for exec when 'event' is NULL.
+ */
 static int wm_operator_invoke(
         bContext *C, wmOperatorType *ot, wmEvent *event,
         PointerRNA *properties, ReportList *reports, const bool poll_only)
@@ -1094,7 +1118,9 @@ static int wm_operator_invoke(
 		wmOperator *op = wm_operator_create(wm, ot, properties, reports); /* if reports == NULL, they'll be initialized */
 		const bool is_nested_call = (wm->op_undo_depth != 0);
 		
-		op->flag |= OP_IS_INVOKE;
+		if (event != NULL) {
+			op->flag |= OP_IS_INVOKE;
+		}
 
 		/* initialize setting from previous run */
 		if (!is_nested_call) { /* not called by py script */
@@ -2852,7 +2878,7 @@ void WM_event_add_mousemove(bContext *C)
 
 
 /* for modal callbacks, check configuration for how to interpret exit with tweaks  */
-bool WM_modal_tweak_exit(const wmEvent *event, int tweak_event)
+bool WM_event_is_modal_tweak_exit(const wmEvent *event, int tweak_event)
 {
 	/* if the release-confirm userpref setting is enabled, 
 	 * tweak events can be canceled when mouse is released
diff --git a/source/blender/windowmanager/intern/wm_files.c b/source/blender/windowmanager/intern/wm_files.c
index b4a6366fb4e..637ace9cd82 100644
--- a/source/blender/windowmanager/intern/wm_files.c
+++ b/source/blender/windowmanager/intern/wm_files.c
@@ -449,7 +449,7 @@ void wm_file_read_report(bContext *C)
  * Logic shared between #WM_file_read & #wm_homefile_read,
  * updates to make after reading a file.
  */
-static void wm_file_read_post(bContext *C, bool is_startup_file)
+static void wm_file_read_post(bContext *C, const bool is_startup_file, const bool use_userdef)
 {
 	bool addons_loaded = false;
 	wmWindowManager *wm = CTX_wm_manager(C);
@@ -468,13 +468,14 @@ static void wm_file_read_post(bContext *C, bool is_startup_file)
 	if (is_startup_file) {
 		/* possible python hasn't been initialized */
 		if (CTX_py_init_get(C)) {
-			/* Only run when we have a template path found. */
-			if (BKE_appdir_app_template_any()) {
-				BPY_execute_string(C, "__import__('bl_app_template_utils').reset()");
+			if (use_userdef) {
+				/* Only run when we have a template path found. */
+				if (BKE_appdir_app_template_any()) {
+					BPY_execute_string(C, "__import__('bl_app_template_utils').reset()");
+				}
+				/* sync addons, these may have changed from the defaults */
+				BPY_execute_string(C, "__import__('addon_utils').reset_all()");
 			}
-			/* sync addons, these may have changed from the defaults */
-			BPY_execute_string(C, "__import__('addon_utils').reset_all()");
-
 			BPY_python_reset(C);
 			addons_loaded = true;
 		}
@@ -588,7 +589,7 @@ bool WM_file_read(bContext *C, const char *filepath, ReportList *reports)
 			}
 		}
 
-		wm_file_read_post(C, false);
+		wm_file_read_post(C, false, false);
 
 		success = true;
 	}
@@ -636,13 +637,15 @@ bool WM_file_read(bContext *C, const char *filepath, ReportList *reports)
  *
  * \param use_factory_settings: Ignore on-disk startup file, use bundled ``datatoc_startup_blend`` instead.
  * Used for "Restore Factory Settings".
+ * \param use_userdef: Load factory settings as well as startup file.
+ * Disabled for "File New" we don't want to reload preferences.
  * \param filepath_startup_override: Optional path pointing to an alternative blend file (may be NULL).
  * \param app_template_override: Template to use instead of the template defined in user-preferences.
  * When not-null, this is written into the user preferences.
  */
 int wm_homefile_read(
         bContext *C, ReportList *reports,
-        bool use_factory_settings, bool use_empty_data,
+        bool use_factory_settings, bool use_empty_data, bool use_userdef,
         const char *filepath_startup_override, const char *app_template_override)
 {
 	ListBase wmbase;
@@ -666,7 +669,7 @@ int wm_homefile_read(
 	 * And in this case versioning code is to be run.
 	 */
 	bool read_userdef_from_memory = false;
-	eBLOReadSkip skip_flags = 0;
+	eBLOReadSkip skip_flags = use_userdef ? 0 : BLO_READ_SKIP_USERDEF;
 
 	/* options exclude eachother */
 	BLI_assert((use_factory_settings && filepath_startup_override) == 0);
@@ -693,7 +696,9 @@ int wm_homefile_read(
 	if (!use_factory_settings) {
 		if (cfgdir) {
 			BLI_path_join(filepath_startup, sizeof(filepath_startup), cfgdir, BLENDER_STARTUP_FILE, NULL);
-			BLI_path_join(filepath_userdef, sizeof(filepath_startup), cfgdir, BLENDER_USERPREF_FILE, NULL);
+			if (use_userdef) {
+				BLI_path_join(filepath_userdef, sizeof(filepath_startup), cfgdir, BLENDER_USERPREF_FILE, NULL);
+			}
 		}
 		else {
 			use_factory_settings = true;
@@ -705,14 +710,16 @@ int wm_homefile_read(
 	}
 
 	/* load preferences before startup.blend */
-	if (!use_factory_settings && BLI_exists(filepath_userdef)) {
-		UserDef *userdef = BKE_blendfile_userdef_read(filepath_userdef, NULL);
-		if (userdef != NULL) {
-			BKE_blender_userdef_set_data(userdef);
-			MEM_freeN(userdef);
-
-			skip_flags |= BLO_READ_SKIP_USERDEF;
-			printf("Read prefs: %s\n", filepath_userdef);
+	if (use_userdef) {
+		if (!use_factory_settings && BLI_exists(filepath_userdef)) {
+			UserDef *userdef = BKE_blendfile_userdef_read(filepath_userdef, NULL);
+			if (userdef != NULL) {
+				BKE_blender_userdef_set_data(userdef);
+				MEM_freeN(userdef);
+
+				skip_flags |= BLO_READ_SKIP_USERDEF;
+				printf("Read prefs: %s\n", filepath_userdef);
+			}
 		}
 	}
 
@@ -721,23 +728,23 @@ int wm_homefile_read(
 	if (filepath_startup_override != NULL) {
 		/* pass */
 	}
-	else if (app_template_override && app_template_override[0]) {
+	else if (app_template_override) {
+		/* This may be clearing the current template by setting to an empty string. */
 		app_template = app_template_override;
 	}
 	else if (!use_factory_settings && U.app_template[0]) {
 		app_template = U.app_template;
 	}
 
-	if (app_template != NULL) {
+	if ((app_template != NULL) && (app_template[0] != '\0')) {
 		BKE_appdir_app_template_id_search(app_template, app_template_system, sizeof(app_template_system));
-		BLI_path_join(app_template_config, sizeof(app_template_config), cfgdir, app_template, NULL);
-	}
 
-	/* insert template name into startup file */
-	if (app_template != NULL) {
+		/* Insert template name into startup file. */
+
 		/* note that the path is being set even when 'use_factory_settings == true'
 		 * this is done so we can load a templates factory-settings */
 		if (!use_factory_settings) {
+			BLI_path_join(app_template_config, sizeof(app_template_config), cfgdir, app_template, NULL);
 			BLI_path_join(filepath_startup, sizeof(filepath_startup), app_template_config, BLENDER_STARTUP_FILE, NULL);
 			if (BLI_access(filepath_startup, R_OK) != 0) {
 				filepath_startup[0] = '\0';
@@ -772,8 +779,12 @@ int wm_homefile_read(
 		success = BKE_blendfile_read_from_memory(
 		        C, datatoc_startup_blend, datatoc_startup_blend_size,
 		        NULL, skip_flags, true);
-		if (success && !(skip_flags & BLO_READ_SKIP_USERDEF)) {
-			read_userdef_from_memory = true;
+		if (success) {
+			if (use_userdef) {
+				if ((skip_flags & BLO_READ_SKIP_USERDEF) == 0) {
+					read_userdef_from_memory = true;
+				}
+			}
 		}
 		if (BLI_listbase_is_empty(&wmbase)) {
 			wm_clear_default_size(C);
@@ -801,21 +812,23 @@ int wm_homefile_read(
 			BLI_path_join(temp_path, sizeof(temp_path), app_template_system, BLENDER_USERPREF_FILE, NULL);
 		}
 
-		UserDef *userdef_template = NULL;
-		/* just avoids missing file warning */
-		if (BLI_exists(temp_path)) {
-			userdef_template = BKE_blendfile_userdef_read(temp_path, NULL);
-		}
-		if (userdef_template == NULL) {
-			/* we need to have preferences load to overwrite preferences from previous template */
-			userdef_template = BKE_blendfile_userdef_read_from_memory(
-			        datatoc_startup_blend, datatoc_startup_blend_size, NULL);
-			read_userdef_from_memory = true;
-		}
-		if (userdef_template) {
-			BKE_blender_userdef_set_app_template(userdef_template);
-			BKE_blender_userdef_free_data(userdef_template);
-			MEM_freeN(userdef_template);
+		if (use_userdef) {
+			UserDef *userdef_template = NULL;
+			/* just avoids missing file warning */
+			if (BLI_exists(temp_path)) {
+				userdef_template = BKE_blendfile_userdef_read(temp_path, NULL);
+			}
+			if (userdef_template == NULL) {
+				/* we need to have preferences load to overwrite preferences from previous template */
+				userdef_template = BKE_blendfile_userdef_read_from_memory(
+				        datatoc_startup_blend, datatoc_startup_blend_size, NULL);
+				read_userdef_from_memory = true;
+			}
+			if (userdef_template) {
+				BKE_blender_userdef_set_app_template(userdef_template);
+				BKE_blender_userdef_free_data(userdef_template);
+				MEM_freeN(userdef_template);
+			}
 		}
 	}
 
@@ -827,8 +840,10 @@ int wm_homefile_read(
 	 * can remove this eventually, only in a 2.53 and older, now its not written */
 	G.fileflags &= ~G_FILE_RELATIVE_REMAP;
 	
-	/* check userdef before open window, keymaps etc */
-	wm_init_userdef(C, read_userdef_from_memory);
+	if (use_userdef) {
+		/* check userdef before open window, keymaps etc */
+		wm_init_userdef(C, read_userdef_from_memory);
+	}
 	
 	/* match the read WM with current WM */
 	wm_window_match_do(C, &wmbase); 
@@ -836,9 +851,11 @@ int wm_homefile_read(
 
 	G.main->name[0] = '\0';
 
-	/* When loading factory settings, the reset solid OpenGL lights need to be applied. */
-	if (!G.background) {
-		GPU_default_lights();
+	if (use_userdef) {
+		/* When loading factory settings, the reset solid OpenGL lights need to be applied. */
+		if (!G.background) {
+			GPU_default_lights();
+		}
 	}
 
 	/* start with save preference untitled.blend */
@@ -846,7 +863,7 @@ int wm_homefile_read(
 	/* disable auto-play in startup.blend... */
 	G.fileflags &= ~G_FILE_AUTOPLAY;
 
-	wm_file_read_post(C, true);
+	wm_file_read_post(C, true, use_userdef);
 
 	return true;
 }
@@ -1528,6 +1545,7 @@ void WM_OT_read_history(wmOperatorType *ot)
 static int wm_homefile_read_exec(bContext *C, wmOperator *op)
 {
 	const bool use_factory_settings = (STREQ(op->type->idname, "WM_OT_read_factory_settings"));
+	bool use_userdef = false;
 	char filepath_buf[FILE_MAX];
 	const char *filepath = NULL;
 
@@ -1551,6 +1569,8 @@ static int wm_homefile_read_exec(bContext *C, wmOperator *op)
 	else {
 		/* always load UI for factory settings (prefs will re-init) */
 		G.fileflags &= ~G_FILE_NO_UI;
+		/* Always load preferences with factory settings. */
+		use_userdef = true;
 	}
 
 	char app_template_buf[sizeof(U.app_template)];
@@ -1562,17 +1582,15 @@ static int wm_homefile_read_exec(bContext *C, wmOperator *op)
 	if (prop_app_template && RNA_property_is_set(op->ptr, prop_app_template)) {
 		RNA_property_string_get(op->ptr, prop_app_template, app_template_buf);
 		app_template = app_template_buf;
-	}
-	else if (!use_factory_settings) {
-		/* TODO: dont reset prefs on 'New File' */
-		BLI_strncpy(app_template_buf, U.app_template, sizeof(app_template_buf));
-		app_template = app_template_buf;
+
+		/* Always load preferences when switching templates. */
+		use_userdef = true;
 	}
 	else {
 		app_template = NULL;
 	}
 
-	if (wm_homefile_read(C, op->reports, use_factory_settings, use_empty_data, filepath, app_template)) {
+	if (wm_homefile_read(C, op->reports, use_factory_settings, use_empty_data, use_userdef, filepath, app_template)) {
 		if (use_splash) {
 			WM_init_splash(C);
 		}
diff --git a/source/blender/windowmanager/intern/wm_gesture.c b/source/blender/windowmanager/intern/wm_gesture.c
index 46203333eb5..e04571fe572 100644
--- a/source/blender/windowmanager/intern/wm_gesture.c
+++ b/source/blender/windowmanager/intern/wm_gesture.c
@@ -137,7 +137,7 @@ int wm_gesture_evaluate(wmGesture *gesture)
 		int dx = BLI_rcti_size_x(rect);
 		int dy = BLI_rcti_size_y(rect);
 		if (abs(dx) + abs(dy) > U.tweak_threshold) {
-			int theta = iroundf(4.0f * atan2f((float)dy, (float)dx) / (float)M_PI);
+			int theta = round_fl_to_int(4.0f * atan2f((float)dy, (float)dx) / (float)M_PI);
 			int val = EVT_GESTURE_W;
 
 			if (theta == 0) val = EVT_GESTURE_E;
diff --git a/source/blender/windowmanager/intern/wm_init_exit.c b/source/blender/windowmanager/intern/wm_init_exit.c
index 00a9976e8be..e73ec2b081a 100644
--- a/source/blender/windowmanager/intern/wm_init_exit.c
+++ b/source/blender/windowmanager/intern/wm_init_exit.c
@@ -184,15 +184,12 @@ void WM_init(bContext *C, int argc, const char **argv)
 	BLF_init(); /* Please update source/gamengine/GamePlayer/GPG_ghost.cpp if you change this */
 	BLT_lang_init();
 
-	/* Enforce loading the UI for the initial homefile */
-	G.fileflags &= ~G_FILE_NO_UI;
-
 	/* reports cant be initialized before the wm,
 	 * but keep before file reading, since that may report errors */
 	wm_init_reports(C);
 
 	/* get the default database, plus a wm */
-	wm_homefile_read(C, NULL, G.factory_startup, false, NULL, NULL);
+	wm_homefile_read(C, NULL, G.factory_startup, false, true, NULL, NULL);
 	
 
 	BLT_lang_set(NULL);
diff --git a/source/blender/windowmanager/intern/wm_operators.c b/source/blender/windowmanager/intern/wm_operators.c
index d3ebd3e4d2c..51c551cd9a5 100644
--- a/source/blender/windowmanager/intern/wm_operators.c
+++ b/source/blender/windowmanager/intern/wm_operators.c
@@ -177,7 +177,7 @@ void WM_operatortype_append(void (*opfunc)(wmOperatorType *))
 
 	/* XXX All ops should have a description but for now allow them not to. */
 	RNA_def_struct_ui_text(ot->srna, ot->name, ot->description ? ot->description : UNDOCUMENTED_OPERATOR_TIP);
-	RNA_def_struct_identifier(ot->srna, ot->idname);
+	RNA_def_struct_identifier(&BLENDER_RNA, ot->srna, ot->idname);
 
 	BLI_ghash_insert(global_ops_hash, (void *)ot->idname, ot);
 }
@@ -193,7 +193,7 @@ void WM_operatortype_append_ptr(void (*opfunc)(wmOperatorType *, void *), void *
 	ot->translation_context = BLT_I18NCONTEXT_OPERATOR_DEFAULT;
 	opfunc(ot, userdata);
 	RNA_def_struct_ui_text(ot->srna, ot->name, ot->description ? ot->description : UNDOCUMENTED_OPERATOR_TIP);
-	RNA_def_struct_identifier(ot->srna, ot->idname);
+	RNA_def_struct_identifier(&BLENDER_RNA, ot->srna, ot->idname);
 
 	BLI_ghash_insert(global_ops_hash, (void *)ot->idname, ot);
 }
@@ -398,7 +398,7 @@ wmOperatorType *WM_operatortype_append_macro(const char *idname, const char *nam
 		ot->description = UNDOCUMENTED_OPERATOR_TIP;
 	
 	RNA_def_struct_ui_text(ot->srna, ot->name, ot->description);
-	RNA_def_struct_identifier(ot->srna, ot->idname);
+	RNA_def_struct_identifier(&BLENDER_RNA, ot->srna, ot->idname);
 	/* Use i18n context from ext.srna if possible (py operators). */
 	i18n_context = ot->ext.srna ? RNA_struct_translation_context(ot->ext.srna) : BLT_I18NCONTEXT_OPERATOR_DEFAULT;
 	RNA_def_struct_translation_context(ot->srna, i18n_context);
@@ -432,7 +432,7 @@ void WM_operatortype_append_macro_ptr(void (*opfunc)(wmOperatorType *, void *),
 	opfunc(ot, userdata);
 
 	RNA_def_struct_ui_text(ot->srna, ot->name, ot->description);
-	RNA_def_struct_identifier(ot->srna, ot->idname);
+	RNA_def_struct_identifier(&BLENDER_RNA, ot->srna, ot->idname);
 
 	BLI_ghash_insert(global_ops_hash, (void *)ot->idname, ot);
 }
@@ -573,6 +573,46 @@ void WM_operator_bl_idname(char *to, const char *from)
 }
 
 /**
+ * Sanity check to ensure #WM_operator_bl_idname won't fail.
+ * \returns true when there are no problems with \a idname, otherwise report an error.
+ */
+bool WM_operator_py_idname_ok_or_report(ReportList *reports, const char *classname, const char *idname)
+{
+	const char *ch = idname;
+	int dot = 0;
+	int i;
+	for (i = 0; *ch; i++, ch++) {
+		if ((*ch >= 'a' && *ch <= 'z') || (*ch >= '0' && *ch <= '9') || *ch == '_') {
+			/* pass */
+		}
+		else if (*ch == '.') {
+			dot++;
+		}
+		else {
+			BKE_reportf(reports, RPT_ERROR,
+			            "Registering operator class: '%s', invalid bl_idname '%s', at position %d",
+			            classname, idname, i);
+			return false;
+		}
+	}
+
+	if (i > (MAX_NAME - 3)) {
+		BKE_reportf(reports, RPT_ERROR, "Registering operator class: '%s', invalid bl_idname '%s', "
+		            "is too long, maximum length is %d", classname, idname,
+		            MAX_NAME - 3);
+		return false;
+	}
+
+	if (dot != 1) {
+		BKE_reportf(reports, RPT_ERROR,
+		            "Registering operator class: '%s', invalid bl_idname '%s', must contain 1 '.' character",
+		            classname, idname);
+		return false;
+	}
+	return true;
+}
+
+/**
  * Print a string representation of the operator, with the args that it runs so python can run it again.
  *
  * When calling from an existing wmOperator, better to use simple version:
@@ -806,9 +846,19 @@ static char *wm_prop_pystring_from_context(bContext *C, PointerRNA *ptr, Propert
 			} \
 		} (void)0
 
+#define CTX_TEST_SPACE_TYPE(space_data_type, member_full, dataptr_cmp) \
+		{ \
+			const char *ctx_member_full = member_full; \
+			if (space_data->spacetype == space_data_type && ptr->data == dataptr_cmp) { \
+				member_id = ctx_member_full; \
+				break; \
+			} \
+		} (void)0
+
 		switch (GS(((ID *)ptr->id.data)->name)) {
 			case ID_SCE:
 			{
+				CTX_TEST_PTR_DATA_TYPE(C, "active_gpencil_brush", RNA_GPencilBrush, ptr, CTX_data_active_gpencil_brush(C));
 				CTX_TEST_PTR_ID(C, "scene", ptr->id.data);
 				break;
 			}
@@ -843,12 +893,22 @@ static char *wm_prop_pystring_from_context(bContext *C, PointerRNA *ptr, Propert
 			{
 				CTX_TEST_PTR_ID(C, "screen", ptr->id.data);
 
-				CTX_TEST_PTR_DATA_TYPE(C, "space_data", RNA_Space, ptr, CTX_wm_space_data(C));
+				SpaceLink *space_data = CTX_wm_space_data(C);
+
+				CTX_TEST_PTR_DATA_TYPE(C, "space_data", RNA_Space, ptr, space_data);
 				CTX_TEST_PTR_DATA_TYPE(C, "area", RNA_Area, ptr, CTX_wm_area(C));
 				CTX_TEST_PTR_DATA_TYPE(C, "region", RNA_Region, ptr, CTX_wm_region(C));
 
+				CTX_TEST_SPACE_TYPE(SPACE_IMAGE, "space_data.uv_editor", space_data);
+				CTX_TEST_SPACE_TYPE(SPACE_VIEW3D, "space_data.fx_settings", &(CTX_wm_view3d(C)->fx_settings));
+				CTX_TEST_SPACE_TYPE(SPACE_NLA, "space_data.dopesheet", CTX_wm_space_nla(C)->ads);
+				CTX_TEST_SPACE_TYPE(SPACE_IPO, "space_data.dopesheet", CTX_wm_space_graph(C)->ads);
+				CTX_TEST_SPACE_TYPE(SPACE_ACTION, "space_data.dopesheet", &(CTX_wm_space_action(C)->ads));
+				CTX_TEST_SPACE_TYPE(SPACE_FILE, "space_data.params", CTX_wm_space_file(C)->params);
 				break;
 			}
+			default:
+				break;
 		}
 
 		if (member_id) {
@@ -860,6 +920,7 @@ static char *wm_prop_pystring_from_context(bContext *C, PointerRNA *ptr, Propert
 		}
 #undef CTX_TEST_PTR_ID
 #undef CTX_TEST_PTR_ID_CAST
+#undef CTX_TEST_SPACE_TYPE
 	}
 
 	return ret;
diff --git a/source/blender/windowmanager/intern/wm_window.c b/source/blender/windowmanager/intern/wm_window.c
index 8afeb8e7b3d..9fe215f7712 100644
--- a/source/blender/windowmanager/intern/wm_window.c
+++ b/source/blender/windowmanager/intern/wm_window.c
@@ -377,7 +377,12 @@ void wm_window_title(wmWindowManager *wm, wmWindow *win)
 
 void WM_window_set_dpi(wmWindow *win)
 {
-	int auto_dpi = GHOST_GetDPIHint(win->ghostwin);
+	float auto_dpi = GHOST_GetDPIHint(win->ghostwin);
+
+	/* Clamp auto DPI to 96, since our font/interface drawing does not work well
+	 * with lower sizes. The main case we are interested in supporting is higher
+	 * DPI. If a smaller UI is desired it is still possible to adjust UI scale. */
+	auto_dpi = max_ff(auto_dpi, 96.0f);
 
 	/* Lazily init UI scale size, preserving backwards compatibility by
 	 * computing UI scale from ratio of previous DPI and auto DPI */
@@ -397,13 +402,16 @@ void WM_window_set_dpi(wmWindow *win)
 	/* Blender's UI drawing assumes DPI 72 as a good default following macOS
 	 * while Windows and Linux use DPI 96. GHOST assumes a default 96 so we
 	 * remap the DPI to Blender's convention. */
+	auto_dpi *= GHOST_GetNativePixelSize(win->ghostwin);
 	int dpi = auto_dpi * U.ui_scale * (72.0 / 96.0f);
 
 	/* Automatically set larger pixel size for high DPI. */
-	int pixelsize = MAX2(1, dpi / 54);
+	int pixelsize = max_ii(1, (int)(dpi / 64));
+	/* User adjustment for pixel size. */
+	pixelsize = max_ii(1, pixelsize + U.ui_line_width);
 
 	/* Set user preferences globals for drawing, and for forward compatibility. */
-	U.pixelsize = GHOST_GetNativePixelSize(win->ghostwin) * pixelsize;
+	U.pixelsize = pixelsize;
 	U.dpi = dpi / pixelsize;
 	U.virtual_pixel = (pixelsize == 1) ? VIRTUAL_PIXEL_NATIVE : VIRTUAL_PIXEL_DOUBLE;
 	U.widget_unit = (U.pixelsize * U.dpi * 20 + 36) / 72;
diff --git a/source/blender/windowmanager/wm_event_system.h b/source/blender/windowmanager/wm_event_system.h
index efc01b1f8a8..3fb9cd617bf 100644
--- a/source/blender/windowmanager/wm_event_system.h
+++ b/source/blender/windowmanager/wm_event_system.h
@@ -87,7 +87,8 @@ void        wm_event_do_handlers    (bContext *C);
 
 void        wm_event_add_ghostevent (wmWindowManager *wm, wmWindow *win, int type, int time, void *customdata);
 
-void        wm_event_do_notifiers   (bContext *C);
+void        wm_event_do_refresh_wm_and_depsgraph(bContext *C);
+void        wm_event_do_notifiers(bContext *C);
 
 /* wm_keymap.c */
 
diff --git a/source/blender/windowmanager/wm_files.h b/source/blender/windowmanager/wm_files.h
index 9a1518e15b0..b102b6c7cc7 100644
--- a/source/blender/windowmanager/wm_files.h
+++ b/source/blender/windowmanager/wm_files.h
@@ -37,7 +37,7 @@ struct wmOperatorType;
 void		wm_history_file_read(void);
 int			wm_homefile_read(
         struct bContext *C, struct ReportList *reports,
-        bool use_factory_settings, bool use_empty_data,
+        bool use_factory_settings, bool use_empty_data, bool use_userdef,
         const char *filepath_startup_override, const char *app_template_override);
 void		wm_file_read_report(bContext *C);
 
diff --git a/source/blenderplayer/CMakeLists.txt b/source/blenderplayer/CMakeLists.txt
index 66c72be3d5d..e5a5ff828dd 100644
--- a/source/blenderplayer/CMakeLists.txt
+++ b/source/blenderplayer/CMakeLists.txt
@@ -27,10 +27,6 @@
 
 setup_libdirs()
 
-if(WITH_CODEC_QUICKTIME)
-	add_definitions(-DWITH_QUICKTIME)
-endif()
-
 if(WIN32 AND NOT UNIX)
 	string(SUBSTRING ${BLENDER_VERSION} 0 1 bver1)
 	string(SUBSTRING ${BLENDER_VERSION} 2 1 bver2)
@@ -200,10 +196,6 @@ endif()
 		list(APPEND BLENDER_SORTED_LIBS extern_xdnd)
 	endif()
 
-	if(WITH_CODEC_QUICKTIME)
-		list(APPEND BLENDER_SORTED_LIBS bf_quicktime)
-	endif()
-
 	if(WITH_CXX_GUARDEDALLOC)
 		list(APPEND BLENDER_SORTED_LIBS bf_intern_guardedalloc_cpp)
 	endif()
diff --git a/source/blenderplayer/bad_level_call_stubs/stubs.c b/source/blenderplayer/bad_level_call_stubs/stubs.c
index 7ee0e75b2f7..6afb6c103e0 100644
--- a/source/blenderplayer/bad_level_call_stubs/stubs.c
+++ b/source/blenderplayer/bad_level_call_stubs/stubs.c
@@ -271,6 +271,7 @@ void RE_sample_material_color(
         int tri_index, struct DerivedMesh *orcoDm, struct Object *ob) RET_NONE
 /* nodes */
 struct Render *RE_GetRender(const char *name) RET_NULL
+struct Render *RE_GetSceneRender(const struct Scene *scene) RET_NULL
 struct Object *RE_GetCamera(struct Render *re) RET_NULL
 float RE_lamp_get_data(struct ShadeInput *shi, struct Object *lamp_obj, float col[4], float lv[3], float *dist, float shadow[4]) RET_ZERO
 const float (*RE_object_instance_get_matrix(struct ObjectInstanceRen *obi, int matrix_id))[4] RET_NULL
@@ -296,6 +297,7 @@ float texture_value_blend(float tex, float out, float fact, float facg, int blen
 void texture_rgb_blend(float in[3], const float tex[3], const float out[3], float fact, float facg, int blendtype) RET_NONE
 double elbeemEstimateMemreq(int res, float sx, float sy, float sz, int refine, char *retstr) RET_ZERO
 struct Render *RE_NewRender(const char *name) RET_NULL
+struct Render *RE_NewSceneRender(const struct Scene *scene) RET_NULL
 void RE_SwapResult(struct Render *re, struct RenderResult **rr) RET_NONE
 void RE_BlenderFrame(struct Render *re, struct Main *bmain, struct Scene *scene, struct SceneRenderLayer *srl, struct Object *camera_override, unsigned int lay_override, int frame, const bool write_still) RET_NONE
 bool RE_WriteEnvmapResult(struct ReportList *reports, struct Scene *scene, struct EnvMap *env, const char *relpath, const char imtype, float layout[12]) RET_ZERO
@@ -355,7 +357,7 @@ int WM_enum_search_invoke(struct bContext *C, struct wmOperator *op, const struc
 void WM_event_add_notifier(const struct bContext *C, unsigned int type, void *reference) RET_NONE
 void WM_main_add_notifier(unsigned int type, void *reference) RET_NONE
 void ED_armature_bone_rename(struct bArmature *arm, const char *oldnamep, const char *newnamep) RET_NONE
-void ED_armature_transform(struct bArmature *arm, float mat[4][4]) RET_NONE
+void ED_armature_transform(struct bArmature *arm, float mat[4][4], const bool do_props) RET_NONE
 struct wmEventHandler *WM_event_add_modal_handler(struct bContext *C, struct wmOperator *op) RET_NULL
 struct wmTimer *WM_event_add_timer(struct wmWindowManager *wm, struct wmWindow *win, int event_type, double timestep) RET_NULL
 void WM_event_remove_timer(struct wmWindowManager *wm, struct wmWindow *win, struct wmTimer *timer) RET_NONE
@@ -699,6 +701,7 @@ void WM_operatortype_append_ptr(void (*opfunc)(struct wmOperatorType *, void *),
 void WM_operatortype_append_macro_ptr(void (*opfunc)(struct wmOperatorType *, void *), void *userdata) RET_NONE
 void WM_operator_bl_idname(char *to, const char *from) RET_NONE
 void WM_operator_py_idname(char *to, const char *from) RET_NONE
+bool WM_operator_py_idname_ok_or_report(struct ReportList *reports, const char *classname, const char *idname) RET_ZERO
 int WM_operator_ui_popup(struct bContext *C, struct wmOperator *op, int width, int height) RET_ZERO
 void update_autoflags_fcurve(struct FCurve *fcu, struct bContext *C, struct ReportList *reports, struct PointerRNA *ptr) RET_NONE
 short insert_keyframe(struct ReportList *reports, struct ID *id, struct bAction *act, const char group[], const char rna_path[], int array_index, float cfra, char keytype, short flag) RET_ZERO
diff --git a/source/creator/CMakeLists.txt b/source/creator/CMakeLists.txt
index 8f26e248424..54a212f805b 100644
--- a/source/creator/CMakeLists.txt
+++ b/source/creator/CMakeLists.txt
@@ -607,7 +607,7 @@ if(UNIX AND NOT APPLE)
 					PATTERN "*.pyo" EXCLUDE                 # * any cache *
 				)
 				# On some platforms requests does have extra dependencies.
-				set(_requests_deps "chardet" "urllib3")
+				set(_requests_deps "certifi" "chardet" "idna" "urllib3")
 				foreach(_requests_dep ${_requests_deps})
 					if(EXISTS ${PYTHON_REQUESTS_PATH}/${_requests_dep})
 						install(
@@ -701,7 +701,7 @@ elseif(WIN32)
 			)
 
 			if(WITH_PYTHON_INSTALL_NUMPY)
-				set(PYTHON_NUMPY_VERSION 1.10)
+				set(PYTHON_NUMPY_VERSION 1.13)
 				add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${BLENDER_VERSION}/python/lib/site-packages
 					COMMAND ${CMAKE_COMMAND} -E
 					        make_directory ${CMAKE_CURRENT_BINARY_DIR}/${BLENDER_VERSION}/python/lib/site-packages)
@@ -845,6 +845,13 @@ elseif(APPLE)
 			PATTERN "__MACOSX" EXCLUDE
 			PATTERN ".DS_Store" EXCLUDE
 			PATTERN "config-${PYTHON_VERSION}m/*.a" EXCLUDE  # static lib
+			PATTERN "lib2to3" EXCLUDE                   # ./lib2to3
+			PATTERN "tkinter" EXCLUDE                   # ./tkinter
+			PATTERN "lib-dynload/_tkinter.*" EXCLUDE    # ./lib-dynload/_tkinter.co
+			PATTERN "idlelib" EXCLUDE                   # ./idlelib
+			PATTERN "test" EXCLUDE                      # ./test
+			PATTERN "turtledemo" EXCLUDE                # ./turtledemo
+			PATTERN "turtle.py" EXCLUDE                 # ./turtle.py
 		)
 	endmacro()
 
@@ -908,40 +915,10 @@ elseif(APPLE)
 
 	# python
 	if(WITH_PYTHON AND NOT WITH_PYTHON_MODULE AND NOT WITH_PYTHON_FRAMEWORK)
-		# the python zip is first extracted as part of the build process,
-		# and then later installed as part of make install. this is much
-		# quicker, and means we can easily exclude files on copy
-		# Not needed for PYTHON_MODULE or WEB_PLUGIN due uses Pyhon framework
-		# use a hash of the .zip path to handle switching between different
-		# lib directories without needing a clean build
-		string(SHA1 PYTHON_ZIP_HASH ${LIBDIR}/release/${PYTHON_ZIP})
-		set(PYTHON_EXTRACT_DIR ${CMAKE_CURRENT_BINARY_DIR}/${PYTHON_ZIP_HASH}/python)
-
-		add_custom_target(
-			extractpyzip
-			DEPENDS ${PYTHON_EXTRACT_DIR})
-
-		set(PYTHON_ZIP "python_${CMAKE_OSX_ARCHITECTURES}.zip")
-
-		add_custom_command(
-			OUTPUT ${PYTHON_EXTRACT_DIR}
-			COMMAND ${CMAKE_COMMAND} -E remove_directory "${PYTHON_EXTRACT_DIR}/"
-			COMMAND ${CMAKE_COMMAND} -E make_directory "${PYTHON_EXTRACT_DIR}/"
-			COMMAND ${CMAKE_COMMAND} -E chdir "${PYTHON_EXTRACT_DIR}/"
-			        ${CMAKE_COMMAND} -E tar xzfv "${LIBDIR}/release/${PYTHON_ZIP}"
-			DEPENDS ${LIBDIR}/release/${PYTHON_ZIP})
-
-		add_dependencies(blender extractpyzip)
-
-		# copy extracted python files
+		# Copy the python libs into the install directory
 		install_dir(
-			${PYTHON_EXTRACT_DIR}
-			\${TARGETDIR_VER}
-		)
-		# copy site-packages files
-		install_dir(
-			${LIBDIR}/release/site-packages
-			\${TARGETDIR_VER}/python/lib/python${PYTHON_VERSION}
+			${PYTHON_LIBPATH}
+			${TARGETDIR_VER}/python/lib
 		)
 
 		install(DIRECTORY ${LIBDIR}/python/bin
@@ -997,18 +974,10 @@ elseif(APPLE)
 
 		# python
 		if(WITH_PYTHON AND NOT WITH_PYTHON_FRAMEWORK)
-			add_custom_command(
-				OUTPUT ${PYTHON_EXTRACT_DIR}
-				COMMAND ${CMAKE_COMMAND} -E remove_directory "${PYTHON_EXTRACT_DIR}/"
-				COMMAND ${CMAKE_COMMAND} -E make_directory "${PYTHON_EXTRACT_DIR}/"
-				COMMAND ${CMAKE_COMMAND} -E chdir "${PYTHON_EXTRACT_DIR}/"
-				        ${CMAKE_COMMAND} -E tar xzfv "${LIBDIR}/release/${PYTHON_ZIP}"
-				DEPENDS ${LIBDIR}/release/${PYTHON_ZIP})
-
-			# copy extracted python files
+			# Copy the python libs into the install directory
 			install_dir(
-				${PYTHON_EXTRACT_DIR}
-				\${PLAYER_TARGETDIR_VER}
+				${PYTHON_LIBPATH}
+				${PLAYER_TARGETDIR_VER}/python/lib
 			)
 		endif()
 
diff --git a/source/creator/creator_args.c b/source/creator/creator_args.c
index 658a0b2db08..83e8bbb9ef3 100644
--- a/source/creator/creator_args.c
+++ b/source/creator/creator_args.c
@@ -1129,7 +1129,7 @@ static const char arg_handle_image_type_set_doc[] =
 "\t\tTGA RAWTGA JPEG IRIS IRIZ\n"
 "\t\tAVIRAW AVIJPEG PNG BMP\n"
 "\t(formats that can be compiled into blender, not available on all systems)\n"
-"\t\tHDR TIFF EXR MULTILAYER MPEG FRAMESERVER QUICKTIME CINEON DPX DDS JP2"
+"\t\tHDR TIFF EXR MULTILAYER MPEG FRAMESERVER CINEON DPX DDS JP2"
 ;
 static int arg_handle_image_type_set(int argc, const char **argv, void *data)
 {
@@ -1362,7 +1362,7 @@ static int arg_handle_render_frame(int argc, const char **argv, void *data)
 				return 1;
 			}
 
-			re = RE_NewRender(scene->id.name);
+			re = RE_NewSceneRender(scene);
 			BLI_begin_threaded_malloc();
 			BKE_reports_init(&reports, RPT_STORE);
 
@@ -1404,7 +1404,7 @@ static int arg_handle_render_animation(int UNUSED(argc), const char **UNUSED(arg
 	Scene *scene = CTX_data_scene(C);
 	if (scene) {
 		Main *bmain = CTX_data_main(C);
-		Render *re = RE_NewRender(scene->id.name);
+		Render *re = RE_NewSceneRender(scene);
 		ReportList reports;
 		BLI_begin_threaded_malloc();
 		BKE_reports_init(&reports, RPT_STORE);
diff --git a/source/gameengine/GameLogic/CMakeLists.txt b/source/gameengine/GameLogic/CMakeLists.txt
index 05071f59707..b9eec74f6f4 100644
--- a/source/gameengine/GameLogic/CMakeLists.txt
+++ b/source/gameengine/GameLogic/CMakeLists.txt
@@ -139,6 +139,9 @@ if(WITH_SDL)
 	if(WITH_GHOST_SDL)
 		add_definitions(-DWITH_GHOST_SDL)
 	endif()
+	if(WITH_SDL_DYNLOAD)
+		add_definitions(-DWITH_SDL_DYNLOAD)
+	endif()
 endif()
 
 blender_add_lib(ge_logic "${SRC}" "${INC}" "${INC_SYS}")
diff --git a/source/gameengine/GameLogic/Joystick/SCA_Joystick.cpp b/source/gameengine/GameLogic/Joystick/SCA_Joystick.cpp
index 1a66b2aee52..9f532527a80 100644
--- a/source/gameengine/GameLogic/Joystick/SCA_Joystick.cpp
+++ b/source/gameengine/GameLogic/Joystick/SCA_Joystick.cpp
@@ -38,7 +38,11 @@
 #include "BLI_path_util.h"
 
 #ifdef WITH_SDL
-#  define SDL_CHECK(x) ((x) != (void *)0)
+#  ifdef WITH_SDL_DYNLOAD
+#    define SDL_CHECK(x) ((x) != (void *)0)
+#  else
+#    define SDL_CHECK(x) true
+#  endif
 #endif
 
 SCA_Joystick::SCA_Joystick(short int index)
diff --git a/source/gameengine/GameLogic/Joystick/SCA_JoystickEvents.cpp b/source/gameengine/GameLogic/Joystick/SCA_JoystickEvents.cpp
index fd3d713b3d2..1dee1de9de2 100644
--- a/source/gameengine/GameLogic/Joystick/SCA_JoystickEvents.cpp
+++ b/source/gameengine/GameLogic/Joystick/SCA_JoystickEvents.cpp
@@ -82,9 +82,11 @@ void SCA_Joystick::HandleEvents(void)
 {
 	SDL_Event		sdl_event;
 
+#ifdef WITH_SDL_DYNLOAD
 	if (SDL_PollEvent == (void*)0) {
 		return;
 	}
+#endif
 
 	int i;
 	for (i=0; i<m_joynum; i++) { /* could use JOYINDEX_MAX but no reason to */
diff --git a/source/gameengine/Ketsji/KX_FontObject.cpp b/source/gameengine/Ketsji/KX_FontObject.cpp
index 364f8d4bfc6..91e8e4fd42b 100644
--- a/source/gameengine/Ketsji/KX_FontObject.cpp
+++ b/source/gameengine/Ketsji/KX_FontObject.cpp
@@ -281,7 +281,7 @@ int KX_FontObject::pyattr_set_text(void *self_v, const KX_PYATTRIBUTE_DEF *attrd
 	KX_FontObject* self = static_cast<KX_FontObject*>(self_v);
 	if (!PyUnicode_Check(value))
 		return PY_SET_ATTR_FAIL;
-	char* chars = _PyUnicode_AsString(value);
+	const char *chars = _PyUnicode_AsString(value);
 
 	/* Allow for some logic brick control */
 	CValue* tprop = self->GetProperty("Text");
diff --git a/source/gameengine/Ketsji/KX_PythonInit.cpp b/source/gameengine/Ketsji/KX_PythonInit.cpp
index 97a7e161e9f..5540aad7a3f 100644
--- a/source/gameengine/Ketsji/KX_PythonInit.cpp
+++ b/source/gameengine/Ketsji/KX_PythonInit.cpp
@@ -40,11 +40,6 @@
 #  ifdef   _XOPEN_SOURCE
 #    undef _XOPEN_SOURCE
 #  endif
-#  if defined(__sun) || defined(sun)
-#    if defined(_XPG4)
-#      undef _XPG4
-#    endif
-#  endif
 #  include <Python.h>
 
 extern "C" {
diff --git a/source/gameengine/VideoTexture/FilterBase.cpp b/source/gameengine/VideoTexture/FilterBase.cpp
index 5717a1edbcb..b41a2095890 100644
--- a/source/gameengine/VideoTexture/FilterBase.cpp
+++ b/source/gameengine/VideoTexture/FilterBase.cpp
@@ -114,6 +114,7 @@ void Filter_dealloc(PyFilter *self)
 		delete self->m_filter;
 		self->m_filter = NULL;
 	}
+	Py_TYPE((PyObject *)self)->tp_free((PyObject *)self);
 }
 
 
diff --git a/source/gameengine/VideoTexture/ImageBase.cpp b/source/gameengine/VideoTexture/ImageBase.cpp
index b91a312a5d7..a547d2a7a85 100644
--- a/source/gameengine/VideoTexture/ImageBase.cpp
+++ b/source/gameengine/VideoTexture/ImageBase.cpp
@@ -427,6 +427,7 @@ void Image_dealloc(PyImage *self)
 			delete self->m_image;
 		self->m_image = NULL;
 	}
+	Py_TYPE((PyObject *)self)->tp_free((PyObject *)self);
 }
 
 // get image data
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index fa0b86a2637..64326f34377 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -1,7 +1,8 @@
 
 # Python CTests
-add_subdirectory(python)
+if(WITH_BLENDER)
+	add_subdirectory(python)
+endif()
 
 # GTest
 add_subdirectory(gtests)
-
diff --git a/tests/check_deprecated.py b/tests/check_deprecated.py
index cf8f8e0cc35..6e07f8fdb31 100644
--- a/tests/check_deprecated.py
+++ b/tests/check_deprecated.py
@@ -53,10 +53,8 @@ def is_source_any(filename):
 
 def source_list(path, filename_check=None):
     for dirpath, dirnames, filenames in os.walk(path):
-
-        # skip '.svn'
-        if dirpath.startswith("."):
-            continue
+        # skip '.git'
+        dirnames[:] = [d for d in dirnames if not d.startswith(".")]
 
         for filename in filenames:
             if filename_check is None or filename_check(filename):
diff --git a/tests/gtests/blenlib/BLI_array_utils_test.cc b/tests/gtests/blenlib/BLI_array_utils_test.cc
index 518cd097326..c4601e00fbd 100644
--- a/tests/gtests/blenlib/BLI_array_utils_test.cc
+++ b/tests/gtests/blenlib/BLI_array_utils_test.cc
@@ -5,7 +5,7 @@
 extern "C" {
 #include "BLI_utildefines.h"
 #include "BLI_array_utils.h"
-#include "BLI_stackdefines.h"
+#include "BLI_utildefines_stack.h"
 }
 
 /* -------------------------------------------------------------------- */
diff --git a/tests/gtests/blenlib/BLI_kdopbvh_test.cc b/tests/gtests/blenlib/BLI_kdopbvh_test.cc
index e713ddc1695..74db7cf20a0 100644
--- a/tests/gtests/blenlib/BLI_kdopbvh_test.cc
+++ b/tests/gtests/blenlib/BLI_kdopbvh_test.cc
@@ -12,6 +12,8 @@ extern "C" {
 #include "MEM_guardedalloc.h"
 }
 
+#include "stubs/bf_intern_eigen_stubs.h"
+
 /* -------------------------------------------------------------------- */
 /* Helper Functions */
 
diff --git a/tests/gtests/blenlib/BLI_math_geom_test.cc b/tests/gtests/blenlib/BLI_math_geom_test.cc
index cd15a4eb8ff..92e2532392e 100644
--- a/tests/gtests/blenlib/BLI_math_geom_test.cc
+++ b/tests/gtests/blenlib/BLI_math_geom_test.cc
@@ -4,6 +4,8 @@
 
 #include "BLI_math.h"
 
+#include "stubs/bf_intern_eigen_stubs.h"
+
 TEST(math_geom, DistToLine2DSimple)
 {
 	float p[2] = {5.0f, 1.0f},
diff --git a/tests/gtests/blenlib/BLI_polyfill2d_test.cc b/tests/gtests/blenlib/BLI_polyfill2d_test.cc
index 5d112751fa0..df98ead4cb9 100644
--- a/tests/gtests/blenlib/BLI_polyfill2d_test.cc
+++ b/tests/gtests/blenlib/BLI_polyfill2d_test.cc
@@ -27,6 +27,8 @@ extern "C" {
 #endif
 }
 
+#include "stubs/bf_intern_eigen_stubs.h"
+
 static void polyfill_to_obj(
         const char *id,
         const float poly[][2], const unsigned int poly_tot,
@@ -208,6 +210,26 @@ static void test_polyfill_template(
 #endif
 }
 
+static void test_polyfill_template_flip_sign(
+        const char *id, bool is_degenerate,
+        const float poly[][2], const unsigned int poly_tot,
+        unsigned int tris[][3], const unsigned int tris_tot)
+{
+	float (*poly_copy)[2] = (float (*)[2])MEM_mallocN(sizeof(float[2]) * poly_tot, id);
+	for (int flip_x = 0; flip_x < 2; flip_x++) {
+		for (int flip_y = 0; flip_y < 2; flip_y++) {
+			float sign_x = flip_x ? -1.0f : 1.0f;
+			float sign_y = flip_y ? -1.0f : 1.0f;
+			for (int i = 0; i < poly_tot; i++) {
+				poly_copy[i][0] = poly[i][0] * sign_x;
+				poly_copy[i][1] = poly[i][1] * sign_y;
+			}
+			test_polyfill_template(id, is_degenerate, poly_copy, poly_tot, tris, tris_tot);
+		}
+	}
+	MEM_freeN(poly_copy);
+}
+
 #ifdef USE_COMBINATIONS_ALL
 static void test_polyfill_template_main(
         const char *id, bool is_degenerate,
@@ -230,7 +252,7 @@ static void test_polyfill_template_main(
 
 		for (poly_cycle = 0; poly_cycle < poly_tot; poly_cycle++) {
 			// printf("polytest %s ofs=%d, reverse=%d\n", id, poly_cycle, poly_reverse);
-			test_polyfill_template(id, is_degenerate, poly, poly_tot, tris, tris_tot);
+			test_polyfill_template_flip_sign(id, is_degenerate, poly, poly_tot, tris, tris_tot);
 
 			/* cycle */
 			copy_v2_v2(tmp, poly_copy[0]);
@@ -247,7 +269,7 @@ static void test_polyfill_template_main(
         const float poly[][2], const unsigned int poly_tot,
         unsigned int tris[][3], const unsigned int tris_tot)
 {
-	test_polyfill_template(id, is_degenerate, poly, poly_tot, tris, tris_tot);
+	test_polyfill_template_flip_sign(id, is_degenerate, poly, poly_tot, tris, tris_tot);
 }
 #endif  /* USE_COMBINATIONS_ALL */
 
@@ -307,6 +329,43 @@ static void polyfill_to_obj(
 /* -------------------------------------------------------------------- */
 /* tests */
 
+/**
+ * Script to generate the data below:
+ *
+ * \code{.py}
+ * # This example assumes we have a mesh object in edit-mode
+ *
+ * import bpy
+ * import bmesh
+ *
+ * obj = bpy.context.edit_object
+ * me = obj.data
+ * bm = bmesh.from_edit_mesh(me)
+ *
+ * def clean_float(num):
+ *     if int(num) == num:
+ *         return str(int(num))
+ *     prec = 1
+ *     while True:
+ *         text = f"{num:.{prec}f}"
+ *         if float(text) == num:
+ *             return text
+ *         prec += 1
+ *
+ * for f in bm.faces:
+ *     if f.select:
+ *         print(f"\t// data for face: {f.index}")
+ *         print("\tconst float poly[][2] = {", end="")
+ *         coords = [[clean_float(num) for num in l.vert.co[0:2]] for l in f.loops]
+ *         print("\t    ", end="")
+ *         for i, (x, y) in enumerate(coords):
+ *             if (i % 2) == 0:
+ *                 print("\n\t    ", end="")
+ *             print(f"{{{x}, {y}}}", end=",")
+ *         print("\n\t};")
+ * \endcode
+ */
+
 #define POLY_TRI_COUNT(len) ((len) - 2)
 
 
@@ -517,3 +576,17 @@ TEST(polyfill2d, IssueT41986_axis_align)
 
 	TEST_POLYFILL_TEMPLATE_STATIC(poly, false);
 }
+
+/* Blender bug T52834 */
+TEST(polyfill2d, IssueT52834_axis_align_co_linear)
+{
+	const float poly[][2] = {
+	    {40, 0}, {36, 0}, {36, 5}, {35, 5}, {35, 0}, {30, 0}, {30, 5}, {29, 5}, {29, 0}, {24, 0}, {24, 3},
+	    {23, 4}, {23, 0}, {18, 0}, {18, 5}, {17, 5}, {17, 0}, {12, 0}, {12, 5}, {11, 5}, {11, 0}, {6, 0},
+	    {6, 5}, {5, 5}, {5, 0}, {0, 0}, {0, 5}, {-1, 5}, {-1, 0}, {-6, 0}, {-9, -3}, {-6, -3}, {-6, -2},
+	    {-1, -2}, {0, -2}, {5, -2}, {6, -2}, {11, -2}, {12, -2}, {17, -2}, {18, -2}, {23, -2}, {24, -2},
+	    {29, -2}, {30, -2}, {35, -2}, {36, -2}, {40, -2},
+	};
+
+	TEST_POLYFILL_TEMPLATE_STATIC(poly, false);
+}
diff --git a/tests/gtests/blenlib/CMakeLists.txt b/tests/gtests/blenlib/CMakeLists.txt
index 8b013e7a7a6..ffdb8d08d31 100644
--- a/tests/gtests/blenlib/CMakeLists.txt
+++ b/tests/gtests/blenlib/CMakeLists.txt
@@ -34,24 +34,27 @@ include_directories(${INC})
 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${PLATFORM_LINKFLAGS}")
 set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} ${PLATFORM_LINKFLAGS_DEBUG}")
 
+if(WIN32)
+	set(BLI_path_util_extra_libs "bf_blenlib;bf_intern_utfconv;extern_wcwidth;${ZLIB_LIBRARIES}")
+else()
+	set(BLI_path_util_extra_libs "bf_blenlib;extern_wcwidth;${ZLIB_LIBRARIES}")
+endif()
 
 BLENDER_TEST(BLI_array_store "bf_blenlib")
 BLENDER_TEST(BLI_array_utils "bf_blenlib")
-BLENDER_TEST(BLI_kdopbvh "bf_blenlib;bf_intern_eigen")
-BLENDER_TEST(BLI_stack "bf_blenlib")
-BLENDER_TEST(BLI_math_color "bf_blenlib")
-BLENDER_TEST(BLI_math_geom "bf_blenlib;bf_intern_eigen")
+BLENDER_TEST(BLI_ghash "bf_blenlib")
+BLENDER_TEST(BLI_hash_mm2a "bf_blenlib")
+BLENDER_TEST(BLI_kdopbvh "bf_blenlib")
+BLENDER_TEST(BLI_listbase "bf_blenlib")
 BLENDER_TEST(BLI_math_base "bf_blenlib")
+BLENDER_TEST(BLI_math_color "bf_blenlib")
+BLENDER_TEST(BLI_math_geom "bf_blenlib")
+BLENDER_TEST(BLI_path_util "${BLI_path_util_extra_libs}")
+BLENDER_TEST(BLI_polyfill2d "bf_blenlib")
+BLENDER_TEST(BLI_stack "bf_blenlib")
 BLENDER_TEST(BLI_string "bf_blenlib")
 BLENDER_TEST(BLI_string_utf8 "bf_blenlib")
-if(WIN32)
-	BLENDER_TEST(BLI_path_util "bf_blenlib;bf_intern_utfconv;extern_wcwidth;${ZLIB_LIBRARIES}")
-else()
-	BLENDER_TEST(BLI_path_util "bf_blenlib;extern_wcwidth;${ZLIB_LIBRARIES}")
-endif()
-BLENDER_TEST(BLI_polyfill2d "bf_blenlib;bf_intern_eigen")
-BLENDER_TEST(BLI_listbase "bf_blenlib")
-BLENDER_TEST(BLI_hash_mm2a "bf_blenlib")
-BLENDER_TEST(BLI_ghash "bf_blenlib")
 
 BLENDER_TEST_PERFORMANCE(BLI_ghash_performance "bf_blenlib")
+
+unset(BLI_path_util_extra_libs)
diff --git a/tests/gtests/blenlib/stubs/bf_intern_eigen_stubs.h b/tests/gtests/blenlib/stubs/bf_intern_eigen_stubs.h
new file mode 100644
index 00000000000..dad77a257d5
--- /dev/null
+++ b/tests/gtests/blenlib/stubs/bf_intern_eigen_stubs.h
@@ -0,0 +1,18 @@
+/* Apache License, Version 2.0 */
+
+extern "C" {
+
+bool EIG_self_adjoint_eigen_solve(const int size, const float *matrix, float *r_eigen_values, float *r_eigen_vectors)
+{
+	BLI_assert(0);
+	UNUSED_VARS(size, matrix, r_eigen_values, r_eigen_vectors);
+	return false;
+}
+
+void EIG_svd_square_matrix(const int size, const float *matrix, float *r_U, float *r_S, float *r_V)
+{
+	BLI_assert(0);
+	UNUSED_VARS(size, matrix, r_U, r_S, r_V);
+}
+
+}
diff --git a/tests/python/CMakeLists.txt b/tests/python/CMakeLists.txt
index 9e1ebcbe669..7e42f36c6e4 100644
--- a/tests/python/CMakeLists.txt
+++ b/tests/python/CMakeLists.txt
@@ -39,78 +39,101 @@ execute_process(COMMAND ${CMAKE_COMMAND} -E make_directory ${TEST_OUT_DIR})
 # all calls to blender use this
 if(APPLE)
 	if(${CMAKE_GENERATOR} MATCHES "Xcode")
-		set(TEST_BLENDER_EXE ${EXECUTABLE_OUTPUT_PATH}/Debug/blender.app/Contents/MacOS/blender)
+		set(TEST_BLENDER_EXE_PARAMS --background -noaudio --factory-startup)
 	else()
-		set(TEST_BLENDER_EXE ${EXECUTABLE_OUTPUT_PATH}/blender.app/Contents/MacOS/blender)
+		set(TEST_BLENDER_EXE_PARAMS --background -noaudio --factory-startup --env-system-scripts ${CMAKE_SOURCE_DIR}/release/scripts)
 	endif()
 else()
-	set(TEST_BLENDER_EXE ${EXECUTABLE_OUTPUT_PATH}/blender)
+	set(TEST_BLENDER_EXE_PARAMS --background -noaudio --factory-startup --env-system-scripts ${CMAKE_SOURCE_DIR}/release/scripts)
 endif()
 
 # for testing with valgrind prefix: valgrind --track-origins=yes --error-limit=no
-set(TEST_BLENDER_EXE_BARE ${TEST_BLENDER_EXE})
-set(TEST_BLENDER_EXE_PARAMS --background -noaudio --factory-startup --env-system-scripts ${CMAKE_SOURCE_DIR}/release/scripts)
-set(TEST_BLENDER_EXE ${TEST_BLENDER_EXE} ${TEST_BLENDER_EXE_PARAMS} )
+# set(TEST_BLENDER_EXE_BARE ${TEST_BLENDER_EXE})
+# set(TEST_BLENDER_EXE ${TEST_BLENDER_EXE} ${TEST_BLENDER_EXE_PARAMS} )
 
 
 # ------------------------------------------------------------------------------
 # GENERAL PYTHON CORRECTNESS TESTS
-add_test(script_load_keymap ${TEST_BLENDER_EXE}
+add_test(
+	NAME script_load_keymap
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_keymap_completeness.py
 )
 
-add_test(script_load_addons ${TEST_BLENDER_EXE}
+add_test(
+	NAME script_load_addons
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_load_addons.py
 )
 
-add_test(script_load_modules ${TEST_BLENDER_EXE}
+add_test(
+	NAME script_load_modules
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_load_py_modules.py
 )
 
 # test running operators doesn't segfault under various conditions
 if(USE_EXPERIMENTAL_TESTS)
-	add_test(script_run_operators ${TEST_BLENDER_EXE}
+	add_test(
+		NAME script_run_operators
+		COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 		--python ${CMAKE_CURRENT_LIST_DIR}/bl_run_operators.py
 	)
 endif()
 
 # ------------------------------------------------------------------------------
 # PY API TESTS
-add_test(script_pyapi_bpy_path ${TEST_BLENDER_EXE}
+add_test(
+	NAME script_pyapi_bpy_path
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_pyapi_bpy_path.py
 )
 
-add_test(script_pyapi_bpy_utils_units ${TEST_BLENDER_EXE}
+add_test(
+	NAME script_pyapi_bpy_utils_units
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_pyapi_bpy_utils_units.py
 )
 
-add_test(script_pyapi_mathutils ${TEST_BLENDER_EXE}
+add_test(
+	NAME script_pyapi_mathutils
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_pyapi_mathutils.py
 )
 
-add_test(script_pyapi_idprop ${TEST_BLENDER_EXE}
+add_test(
+	NAME script_pyapi_idprop
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_pyapi_idprop.py
 )
 
-add_test(script_pyapi_idprop_datablock ${TEST_BLENDER_EXE}
+add_test(
+	NAME script_pyapi_idprop_datablock
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_pyapi_idprop_datablock.py
 )
 
 # ------------------------------------------------------------------------------
 # MODELING TESTS
-add_test(bevel ${TEST_BLENDER_EXE}
+add_test(
+	NAME bevel
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/modeling/bevel_regression.blend
 	--python-text run_tests
 )
 
-add_test(split_faces ${TEST_BLENDER_EXE}
+add_test(
+	NAME split_faces
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/modeling/split_faces_test.blend
 	--python-text run_tests
 )
 
 # ------------------------------------------------------------------------------
 # MODIFIERS TESTS
-add_test(modifier_array ${TEST_BLENDER_EXE}
+add_test(
+	NAME modifier_array
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/modifier_stack/array_test.blend
 	--python-text run_tests
 )
@@ -121,21 +144,27 @@ add_test(modifier_array ${TEST_BLENDER_EXE}
 # OBJ Import tests
 # disabled until updated & working
 if(FALSE)
-add_test(import_obj_cube ${TEST_BLENDER_EXE}
+add_test(
+	NAME import_obj_cube
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.import_scene.obj\(filepath='${TEST_SRC_DIR}/io_tests/obj/cube.obj'\)
 	--md5=39cce4bacac2d1b18fc470380279bc15 --md5_method=SCENE
 	--write-blend=${TEST_OUT_DIR}/import_obj_cube.blend
 )
 
-add_test(import_obj_nurbs_cyclic ${TEST_BLENDER_EXE}
+add_test(
+	NAME import_obj_nurbs_cyclic
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.import_scene.obj\(filepath='${TEST_SRC_DIR}/io_tests/obj/nurbs_cyclic.obj'\)
 	--md5=ad3c307e5883224a0492378cd32691ab --md5_method=SCENE
 	--write-blend=${TEST_OUT_DIR}/import_obj_nurbs_cyclic.blend
 )
 
-add_test(import_obj_makehuman ${TEST_BLENDER_EXE}
+add_test(
+	NAME import_obj_makehuman
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.import_scene.obj\(filepath='${TEST_SRC_DIR}/io_tests/obj/makehuman.obj'\)
 	--md5=c9f78b185e58358daa4ecaecfa75464e --md5_method=SCENE
@@ -144,7 +173,9 @@ add_test(import_obj_makehuman ${TEST_BLENDER_EXE}
 endif()
 
 # OBJ Export tests
-add_test(export_obj_cube ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_obj_cube
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_geometry/all_quads.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_scene.obj\(filepath='${TEST_OUT_DIR}/export_obj_cube.obj',use_selection=False\)
@@ -153,7 +184,9 @@ add_test(export_obj_cube ${TEST_BLENDER_EXE}
 	--md5=e80660437ad9bfe082849641c361a233 --md5_method=FILE
 )
 
-add_test(export_obj_nurbs ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_obj_nurbs
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_geometry/nurbs.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_scene.obj\(filepath='${TEST_OUT_DIR}/export_obj_nurbs.obj',use_selection=False,use_nurbs=True\)
@@ -164,7 +197,9 @@ add_test(export_obj_nurbs ${TEST_BLENDER_EXE}
 
 # disabled until updated & working
 if(FALSE)
-add_test(export_obj_all_objects ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_obj_all_objects
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_scene/all_objects.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_scene.obj\(filepath='${TEST_OUT_DIR}/export_obj_all_objects.obj',use_selection=False,use_nurbs=True\)
@@ -177,21 +212,27 @@ endif()
 
 
 # PLY Import tests
-add_test(import_ply_cube ${TEST_BLENDER_EXE}
+add_test(
+	NAME import_ply_cube
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.import_mesh.ply\(filepath='${TEST_SRC_DIR}/io_tests/ply/cube_ascii.ply'\)
 	--md5=527134343c27fc0ea73115b85fbfd3ac --md5_method=SCENE
 	--write-blend=${TEST_OUT_DIR}/import_ply_cube.blend
 )
 
-add_test(import_ply_bunny ${TEST_BLENDER_EXE}
+add_test(
+	NAME import_ply_bunny
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.import_mesh.ply\(filepath='${TEST_SRC_DIR}/io_tests/ply/bunny2.ply'\)
 	--md5=6ea5b8533400a17accf928b8fd024eaa --md5_method=SCENE
 	--write-blend=${TEST_OUT_DIR}/import_ply_bunny.blend
 )
 
-add_test(import_ply_small_holes ${TEST_BLENDER_EXE}
+add_test(
+	NAME import_ply_small_holes
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.import_mesh.ply\(filepath='${TEST_SRC_DIR}/io_tests/ply/many_small_holes.ply'\)
 	--md5=c3093e26ecae5b6d59fbbcf2a0d0b39f --md5_method=SCENE
@@ -201,7 +242,9 @@ add_test(import_ply_small_holes ${TEST_BLENDER_EXE}
 # PLY Export
 # disabled until updated & working
 if(FALSE)
-add_test(export_ply_cube_all_data ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_ply_cube_all_data
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_geometry/cube_all_data.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_mesh.ply\(filepath='${TEST_OUT_DIR}/export_ply_cube_all_data.ply'\)
@@ -209,7 +252,9 @@ add_test(export_ply_cube_all_data ${TEST_BLENDER_EXE}
 	--md5=6adc3748ceae8298496f99d0e7e76c15 --md5_method=FILE
 )
 
-add_test(export_ply_suzanne_all_data ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_ply_suzanne_all_data
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_geometry/suzanne_all_data.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_mesh.ply\(filepath='${TEST_OUT_DIR}/export_ply_suzanne_all_data.ply'\)
@@ -218,7 +263,9 @@ add_test(export_ply_suzanne_all_data ${TEST_BLENDER_EXE}
 )
 endif()
 
-add_test(export_ply_vertices ${TEST_BLENDER_EXE}  # lame, add a better one
+add_test(
+	NAME export_ply_vertices # lame, add a better one
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_geometry/vertices.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_mesh.ply\(filepath='${TEST_OUT_DIR}/export_ply_vertices.ply'\)
@@ -230,21 +277,27 @@ add_test(export_ply_vertices ${TEST_BLENDER_EXE}  # lame, add a better one
 # STL Import tests
 # disabled until updated & working
 if(FALSE)
-add_test(import_stl_cube ${TEST_BLENDER_EXE}
+add_test(
+	NAME import_stl_cube
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.import_mesh.stl\(filepath='${TEST_SRC_DIR}/io_tests/stl/cube.stl'\)
 	--md5=8ceb5bb7e1cb5f4342fa1669988c66b4 --md5_method=SCENE
 	--write-blend=${TEST_OUT_DIR}/import_stl_cube.blend
 )
 
-add_test(import_stl_conrod ${TEST_BLENDER_EXE}
+add_test(
+	NAME import_stl_conrod
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.import_mesh.stl\(filepath='${TEST_SRC_DIR}/io_tests/stl/conrod.stl'\)
 	--md5=690a4b8eb9002dcd8631c5a575ea7348 --md5_method=SCENE
 	--write-blend=${TEST_OUT_DIR}/import_stl_conrod.blend
 )
 
-add_test(import_stl_knot_max_simplified ${TEST_BLENDER_EXE}
+add_test(
+	NAME import_stl_knot_max_simplified
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.import_mesh.stl\(filepath='${TEST_SRC_DIR}/io_tests/stl/knot_max_simplified.stl'\)
 	--md5=baf82803f45a84ec4ddbad9cef57dd3e --md5_method=SCENE
@@ -255,7 +308,9 @@ endif()
 # STL Export
 # disabled until updated & working
 if(FALSE)
-add_test(export_stl_cube_all_data ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_stl_cube_all_data
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_geometry/cube_all_data.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_mesh.stl\(filepath='${TEST_OUT_DIR}/export_stl_cube_all_data.stl'\)
@@ -263,7 +318,9 @@ add_test(export_stl_cube_all_data ${TEST_BLENDER_EXE}
 	--md5=64cb97c0cabb015e1c3f76369835075a --md5_method=FILE
 )
 
-add_test(export_stl_suzanne_all_data ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_stl_suzanne_all_data
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_geometry/suzanne_all_data.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_mesh.stl\(filepath='${TEST_OUT_DIR}/export_stl_suzanne_all_data.stl'\)
@@ -271,7 +328,9 @@ add_test(export_stl_suzanne_all_data ${TEST_BLENDER_EXE}
 	--md5=e9b23c97c139ad64961c635105bb9192 --md5_method=FILE
 )
 
-add_test(export_stl_vertices ${TEST_BLENDER_EXE}  # lame, add a better one
+add_test(
+	NAME export_stl_vertices # lame, add a better one
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_geometry/vertices.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_mesh.stl\(filepath='${TEST_OUT_DIR}/export_stl_vertices.stl'\)
@@ -284,21 +343,27 @@ endif()
 # X3D Import
 # disabled until updated & working
 if(FALSE)
-add_test(import_x3d_cube ${TEST_BLENDER_EXE}
+add_test(
+	NAME import_x3d_cube
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.import_scene.x3d\(filepath='${TEST_SRC_DIR}/io_tests/x3d/color_cube.x3d'\)
 	--md5=3fae9be004199c145941cd3f9f80ad7b --md5_method=SCENE
 	--write-blend=${TEST_OUT_DIR}/import_x3d_cube.blend
 )
 
-add_test(import_x3d_teapot ${TEST_BLENDER_EXE}
+add_test(
+	NAME import_x3d_teapot
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.import_scene.x3d\(filepath='${TEST_SRC_DIR}/io_tests/x3d/teapot.x3d'\)
 	--md5=8ee196c71947dce4199d55698501691e --md5_method=SCENE
 	--write-blend=${TEST_OUT_DIR}/import_x3d_teapot.blend
 )
 
-add_test(import_x3d_suzanne_material ${TEST_BLENDER_EXE}
+add_test(
+	NAME import_x3d_suzanne_material
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.import_scene.x3d\(filepath='${TEST_SRC_DIR}/io_tests/x3d/suzanne_material.x3d'\)
 	--md5=3edea1353257d8b5a5f071942f417be6 --md5_method=SCENE
@@ -306,7 +371,9 @@ add_test(import_x3d_suzanne_material ${TEST_BLENDER_EXE}
 )
 
 # X3D Export
-add_test(export_x3d_cube ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_x3d_cube
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_geometry/all_quads.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_scene.x3d\(filepath='${TEST_OUT_DIR}/export_x3d_cube.x3d',use_selection=False\)
@@ -314,7 +381,9 @@ add_test(export_x3d_cube ${TEST_BLENDER_EXE}
 	--md5=05312d278fe41da33560fdfb9bdb268f --md5_method=FILE
 )
 
-add_test(export_x3d_nurbs ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_x3d_nurbs
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_geometry/nurbs.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_scene.x3d\(filepath='${TEST_OUT_DIR}/export_x3d_nurbs.x3d',use_selection=False\)
@@ -322,7 +391,9 @@ add_test(export_x3d_nurbs ${TEST_BLENDER_EXE}
 	--md5=4286d4a2aa507ef78b22ddcbdcc88481 --md5_method=FILE
 )
 
-add_test(export_x3d_all_objects ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_x3d_all_objects
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_scene/all_objects.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_scene.x3d\(filepath='${TEST_OUT_DIR}/export_x3d_all_objects.x3d',use_selection=False\)
@@ -336,21 +407,27 @@ endif()
 # 3DS Import
 # disabled until updated & working
 if(FALSE)
-add_test(import_3ds_cube ${TEST_BLENDER_EXE}
+add_test(
+	NAME import_3ds_cube
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.import_scene.autodesk_3ds\(filepath='${TEST_SRC_DIR}/io_tests/3ds/cube.3ds'\)
 	--md5=cb5a45c35a343c3f5beca2a918472951 --md5_method=SCENE
 	--write-blend=${TEST_OUT_DIR}/import_3ds_cube.blend
 )
 
-add_test(import_3ds_hierarchy_lara ${TEST_BLENDER_EXE}
+add_test(
+	NAME import_3ds_hierarchy_lara
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.import_scene.autodesk_3ds\(filepath='${TEST_SRC_DIR}/io_tests/3ds/hierarchy_lara.3ds'\)
 	--md5=766c873d9fdb5f190e43796cfbae63b6 --md5_method=SCENE
 	--write-blend=${TEST_OUT_DIR}/import_3ds_hierarchy_lara.blend
 )
 
-add_test(import_3ds_hierarchy_greek_trireme ${TEST_BLENDER_EXE}
+add_test(
+	NAME import_3ds_hierarchy_greek_trireme
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.import_scene.autodesk_3ds\(filepath='${TEST_SRC_DIR}/io_tests/3ds/hierarchy_greek_trireme.3ds'\)
 	--md5=b62ee30101e8999cb91ef4f8a8760056 --md5_method=SCENE
@@ -361,7 +438,9 @@ endif()
 # 3DS Export
 # disabled until updated & working
 if(FALSE)
-add_test(export_3ds_cube ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_3ds_cube
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_geometry/all_quads.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_scene.autodesk_3ds\(filepath='${TEST_OUT_DIR}/export_3ds_cube.3ds',use_selection=False\)
@@ -369,7 +448,9 @@ add_test(export_3ds_cube ${TEST_BLENDER_EXE}
 	--md5=a31f5071b6c6dc7445b9099cdc7f63b3 --md5_method=FILE
 )
 
-add_test(export_3ds_nurbs ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_3ds_nurbs
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_geometry/nurbs.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_scene.autodesk_3ds\(filepath='${TEST_OUT_DIR}/export_3ds_nurbs.3ds',use_selection=False\)
@@ -377,7 +458,9 @@ add_test(export_3ds_nurbs ${TEST_BLENDER_EXE}
 	--md5=5bdd21be3c80d814fbc83cb25edb08c2 --md5_method=FILE
 )
 
-add_test(export_3ds_all_objects ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_3ds_all_objects
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_scene/all_objects.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_scene.autodesk_3ds\(filepath='${TEST_OUT_DIR}/export_3ds_all_objects.3ds',use_selection=False\)
@@ -392,7 +475,9 @@ endif()
 # 'use_metadata=False' for reliable md5's
 # disabled until updated & working
 if(FALSE)
-add_test(export_fbx_cube ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_fbx_cube
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_geometry/all_quads.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_scene.fbx\(filepath='${TEST_OUT_DIR}/export_fbx_cube.fbx',use_selection=False,use_metadata=False\)
@@ -400,7 +485,9 @@ add_test(export_fbx_cube ${TEST_BLENDER_EXE}
 	--md5=59a35577462f95f9a0b4e6035226ce9b --md5_method=FILE
 )
 
-add_test(export_fbx_nurbs ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_fbx_nurbs
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_geometry/nurbs.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_scene.fbx\(filepath='${TEST_OUT_DIR}/export_fbx_nurbs.fbx',use_selection=False,use_metadata=False\)
@@ -408,7 +495,9 @@ add_test(export_fbx_nurbs ${TEST_BLENDER_EXE}
 	--md5=d31875f18f613fa0c3b16e978f87f6f8 --md5_method=FILE
 )
 
-add_test(export_fbx_all_objects ${TEST_BLENDER_EXE}
+add_test(
+	NAME export_fbx_all_objects
+	COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 	${TEST_SRC_DIR}/io_tests/blend_scene/all_objects.blend
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_test.py --
 	--run={'FINISHED'}&bpy.ops.export_scene.fbx\(filepath='${TEST_OUT_DIR}/export_fbx_all_objects.fbx',use_selection=False,use_metadata=False\)
@@ -421,31 +510,44 @@ if(WITH_CYCLES)
 	if(OPENIMAGEIO_IDIFF AND EXISTS "${TEST_SRC_DIR}/cycles/ctests/shader")
 		macro(add_cycles_render_test subject)
 			if(MSVC)
-				add_test(NAME cycles_${subject}_test
+				add_test(
+					NAME cycles_${subject}_test
 					COMMAND
 						"$<TARGET_FILE_DIR:blender>/${BLENDER_VERSION_MAJOR}.${BLENDER_VERSION_MINOR}/python/bin/python$<$<CONFIG:Debug>:_d>"
 						${CMAKE_CURRENT_LIST_DIR}/cycles_render_tests.py
 					-blender "$<TARGET_FILE:blender>"
 					-testdir "${TEST_SRC_DIR}/cycles/ctests/${subject}"
 					-idiff "${OPENIMAGEIO_IDIFF}"
+					-outdir "${TEST_OUT_DIR}/cycles"
 				)
 			else()
-				add_test(cycles_${subject}_test
-					 ${CMAKE_CURRENT_LIST_DIR}/cycles_render_tests.py
-					-blender "${TEST_BLENDER_EXE_BARE}"
+				add_test(
+					NAME cycles_${subject}_test
+					COMMAND ${CMAKE_CURRENT_LIST_DIR}/cycles_render_tests.py
+					-blender "$<TARGET_FILE:blender>"
 					-testdir "${TEST_SRC_DIR}/cycles/ctests/${subject}"
 					-idiff "${OPENIMAGEIO_IDIFF}"
+					-outdir "${TEST_OUT_DIR}/cycles"
 				)
 			endif()
 		endmacro()
 		if(WITH_OPENGL_TESTS)
 			add_cycles_render_test(opengl)
 		endif()
-		add_cycles_render_test(image)
+		add_cycles_render_test(bake)
+		add_cycles_render_test(denoise)
+		add_cycles_render_test(displacement)
+		add_cycles_render_test(image_data_types)
+		add_cycles_render_test(image_mapping)
+		add_cycles_render_test(image_texture_limit)
+		add_cycles_render_test(light)
 		add_cycles_render_test(mblur)
 		add_cycles_render_test(reports)
 		add_cycles_render_test(render)
 		add_cycles_render_test(shader)
+		add_cycles_render_test(shader_tangent)
+		add_cycles_render_test(shadow_catcher)
+		add_cycles_render_test(volume)
 	else()
 		MESSAGE(STATUS "Disabling Cycles tests because tests folder does not exist")
 	endif()
@@ -460,7 +562,9 @@ if(WITH_ALEMBIC)
 	get_filename_component(ALEMBIC_ROOT_DIR ${real_include_dir} DIRECTORY)
 
 	if(MSVC)
-		add_test(NAME alembic_tests
+		# FIXME, de-duplicate.
+		add_test(
+			NAME alembic_tests
 			COMMAND
 				"$<TARGET_FILE_DIR:blender>/${BLENDER_VERSION_MAJOR}.${BLENDER_VERSION_MINOR}/python/bin/python$<$<CONFIG:Debug>:_d>"
 				${CMAKE_CURRENT_LIST_DIR}/alembic_tests.py
@@ -468,28 +572,22 @@ if(WITH_ALEMBIC)
 			--testdir "${TEST_SRC_DIR}/alembic"
 			--alembic-root "${ALEMBIC_ROOT_DIR}"
 		)
-		add_test(NAME script_alembic_import
-			COMMAND
-			"$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
-		--python ${CMAKE_CURRENT_LIST_DIR}/bl_alembic_import_test.py
-		--
-		--testdir "${TEST_SRC_DIR}/alembic"
-		--with-legacy-depsgraph=${WITH_LEGACY_DEPSGRAPH}
-		)
-
 	else()
-		add_test(alembic_tests
-			${CMAKE_CURRENT_LIST_DIR}/alembic_tests.py
-			--blender "${TEST_BLENDER_EXE_BARE}"
+		add_test(
+			NAME alembic_tests
+			COMMAND ${CMAKE_CURRENT_LIST_DIR}/alembic_tests.py
+			--blender "$<TARGET_FILE:blender>"
 			--testdir "${TEST_SRC_DIR}/alembic"
 			--alembic-root "${ALEMBIC_ROOT_DIR}"
 		)
-		add_test(script_alembic_import ${TEST_BLENDER_EXE}
+	endif()
+
+	add_test(
+		NAME script_alembic_import
+		COMMAND "$<TARGET_FILE:blender>" ${TEST_BLENDER_EXE_PARAMS}
 		--python ${CMAKE_CURRENT_LIST_DIR}/bl_alembic_import_test.py
 		--
 		--testdir "${TEST_SRC_DIR}/alembic"
 		--with-legacy-depsgraph=${WITH_LEGACY_DEPSGRAPH}
-		)
-
-	endif()
+	)
 endif()
diff --git a/tests/python/batch_import.py b/tests/python/batch_import.py
index bbe3a70327f..a6e2469349b 100644
--- a/tests/python/batch_import.py
+++ b/tests/python/batch_import.py
@@ -72,10 +72,8 @@ def batch_import(
 
     def file_generator(path):
         for dirpath, dirnames, filenames in os.walk(path):
-
-            # skip '.svn'
-            if dirpath.startswith("."):
-                continue
+            # skip '.git'
+            dirnames[:] = [d for d in dirnames if not d.startswith(".")]
 
             for filename in filenames:
                 if pattern_match(filename):
diff --git a/tests/python/bl_alembic_import_test.py b/tests/python/bl_alembic_import_test.py
index f45748f86e7..c3a4af26e11 100644
--- a/tests/python/bl_alembic_import_test.py
+++ b/tests/python/bl_alembic_import_test.py
@@ -179,22 +179,24 @@ class SimpleImportTest(AbstractAlembicTest):
 
         res = bpy.ops.wm.alembic_import(filepath=str(abc), as_background_job=False)
         self.assertEqual({'FINISHED'}, res)
-        cube = bpy.context.active_object
+        plane = bpy.context.active_object
 
         # Check that the file loaded ok.
         bpy.context.scene.frame_set(6)
-        self.assertAlmostEqual(-1, cube.data.vertices[0].co.x)
-        self.assertAlmostEqual(-1, cube.data.vertices[0].co.y)
-        self.assertAlmostEqual(0.5905638933181763, cube.data.vertices[0].co.z)
+        mesh = plane.to_mesh(bpy.context.scene, True, 'RENDER')
+        self.assertAlmostEqual(-1, mesh.vertices[0].co.x)
+        self.assertAlmostEqual(-1, mesh.vertices[0].co.y)
+        self.assertAlmostEqual(0.5905638933181763, mesh.vertices[0].co.z)
 
         # Change path from absolute to relative. This should not break the animation.
         bpy.context.scene.frame_set(1)
         bpy.data.cache_files[fname].filepath = relpath
         bpy.context.scene.frame_set(6)
 
-        self.assertAlmostEqual(1, cube.data.vertices[3].co.x)
-        self.assertAlmostEqual(1, cube.data.vertices[3].co.y)
-        self.assertAlmostEqual(0.5905638933181763, cube.data.vertices[3].co.z)
+        mesh = plane.to_mesh(bpy.context.scene, True, 'RENDER')
+        self.assertAlmostEqual(1, mesh.vertices[3].co.x)
+        self.assertAlmostEqual(1, mesh.vertices[3].co.y)
+        self.assertAlmostEqual(0.5905638933181763, mesh.vertices[3].co.z)
 
     def test_import_long_names(self):
         # This file contains very long names. The longest name is 4047 chars.
diff --git a/tests/python/bl_load_py_modules.py b/tests/python/bl_load_py_modules.py
index 80933cd5b61..39e7bd33d44 100644
--- a/tests/python/bl_load_py_modules.py
+++ b/tests/python/bl_load_py_modules.py
@@ -93,9 +93,8 @@ def addon_modules_sorted():
 def source_list(path, filename_check=None):
     from os.path import join
     for dirpath, dirnames, filenames in os.walk(path):
-        # skip '.svn'
-        if dirpath.startswith("."):
-            continue
+        # skip '.git'
+        dirnames[:] = [d for d in dirnames if not d.startswith(".")]
 
         for filename in filenames:
             filepath = join(dirpath, filename)
@@ -123,6 +122,8 @@ def load_addons():
 
 
 def load_modules():
+    VERBOSE = os.environ.get("BLENDER_VERBOSE") is not None
+
     modules = []
     module_paths = []
 
@@ -162,6 +163,14 @@ def load_modules():
     del module_names
 
     #
+    # test we tested all files except for presets and templates
+    ignore_paths = [
+        os.sep + "presets" + os.sep,
+        os.sep + "templates" + os.sep,
+    ] + ([(os.sep + f + os.sep) for f in BLACKLIST] +
+         [(os.sep + f + ".py")  for f in BLACKLIST])
+
+    #
     # now submodules
     for m in modules:
         filepath = m.__file__
@@ -178,15 +187,35 @@ def load_modules():
                     for f in MODULE_SYS_PATHS.get(mod_name_full, ())
                     ])
 
-                __import__(mod_name_full)
-                mod_imp = sys.modules[mod_name_full]
-
-                sys.path[:] = sys_path_back
-
-                # check we load what we ask for.
-                assert(os.path.samefile(mod_imp.__file__, submod_full))
-
-                modules.append(mod_imp)
+                try:
+                    __import__(mod_name_full)
+                    mod_imp = sys.modules[mod_name_full]
+
+                    sys.path[:] = sys_path_back
+
+                    # check we load what we ask for.
+                    assert(os.path.samefile(mod_imp.__file__, submod_full))
+
+                    modules.append(mod_imp)
+                except Exception as e:
+                    import traceback
+                    # Module might fail to import, but we don't want whole test to fail here.
+                    # Reasoning:
+                    # - This module might be in ignored list (for example, preset or template),
+                    #   so failing here will cause false-positive test failure.
+                    # - If this is module which should not be ignored, it is not added to list
+                    #   of successfully loaded modules, meaning the test will catch this
+                    #   import failure.
+                    # - We want to catch all failures of this script instead of stopping on
+                    #   a first big failure.
+                    do_print = True
+                    if not VERBOSE:
+                        for ignore in ignore_paths:
+                            if ignore in submod_full:
+                                do_print = False
+                                break
+                    if do_print:
+                        traceback.print_exc()
 
     #
     # check which filepaths we didn't load
@@ -205,14 +234,6 @@ def load_modules():
     for f in loaded_files:
         source_files.remove(f)
 
-    #
-    # test we tested all files except for presets and templates
-    ignore_paths = [
-        os.sep + "presets" + os.sep,
-        os.sep + "templates" + os.sep,
-    ] + ([(os.sep + f + os.sep) for f in BLACKLIST] +
-         [(os.sep + f + ".py")  for f in BLACKLIST])
-
     for f in source_files:
         for ignore in ignore_paths:
             if ignore in f:
diff --git a/tests/python/bl_pyapi_bpy_utils_units.py b/tests/python/bl_pyapi_bpy_utils_units.py
index f40dab4b5eb..251419cb9ef 100644
--- a/tests/python/bl_pyapi_bpy_utils_units.py
+++ b/tests/python/bl_pyapi_bpy_utils_units.py
@@ -32,18 +32,17 @@ class UnitsTesting(unittest.TestCase):
     OUTPUT_TESTS = (
         # system,    type,    prec, sep, compat, value, output
         ##### LENGTH
+        # Note: precision handling is a bit complicated when using multi-units...
         ('IMPERIAL', 'LENGTH', 3, False, False, 0.3048, "1'"),
         ('IMPERIAL', 'LENGTH', 3, False, True,  0.3048, "1ft"),
-        ('IMPERIAL', 'LENGTH', 3, True,  False, 0.3048 * 2 + 0.0254 * 5.5, "2' 5.5\""),
-        # Those next two fail, here again because precision ignores order magnitude :/
-        #('IMPERIAL', 'LENGTH', 3, False, False, 1609.344 * 1e6, "1000000mi"), # == 1000000.004mi!!!
-        #('IMPERIAL', 'LENGTH', 6, False, False, 1609.344 * 1e6, "1000000mi"), # == 1000000.003641mi!!!
-        ('METRIC',   'LENGTH', 3, True,  False, 1000 * 2 + 0.001 * 15, "2km 1.5cm"),
-        ('METRIC',   'LENGTH', 3, True,  False, 1234.56789, "1km 234.6m"),
-        # Note: precision seems basically unused when using multi units!
-        ('METRIC',   'LENGTH', 9, True,  False, 1234.56789, "1km 234.6m"),
-        ('METRIC',   'LENGTH', 9, False, False, 1234.56789, "1.23456789km"),
-        ('METRIC',   'LENGTH', 9, True,  False, 1000.000123456789, "1km 0.1mm"),
+        ('IMPERIAL', 'LENGTH', 4, True,  False, 0.3048 * 2 + 0.0254 * 5.5, "2' 5.5\""),
+        ('IMPERIAL', 'LENGTH', 3, False, False, 1609.344 * 1e6, "1000000mi"),
+        ('IMPERIAL', 'LENGTH', 6, False, False, 1609.344 * 1e6, "1000000mi"),
+        ('METRIC',   'LENGTH', 3, True,  False, 1000 * 2 + 0.001 * 15, "2km 2cm"),
+        ('METRIC',   'LENGTH', 5, True,  False, 1234.56789, "1km 234.6m"),
+        ('METRIC',   'LENGTH', 6, True,  False, 1234.56789, "1km 234.57m"),
+        ('METRIC',   'LENGTH', 9, False, False, 1234.56789, "1.234568km"),
+        ('METRIC',   'LENGTH', 9, True,  False, 1000.000123456789, "1km 0.123mm"),
     )
 
     def test_units_inputs(self):
diff --git a/tests/python/bl_run_operators.py b/tests/python/bl_run_operators.py
index 7d5f4127378..7b6b97e5ad1 100644
--- a/tests/python/bl_run_operators.py
+++ b/tests/python/bl_run_operators.py
@@ -100,10 +100,8 @@ def blend_list(mainpath):
 
     def file_list(path, filename_check=None):
         for dirpath, dirnames, filenames in os.walk(path):
-
-            # skip '.svn'
-            if dirpath.startswith("."):
-                continue
+            # skip '.git'
+            dirnames[:] = [d for d in dirnames if not d.startswith(".")]
 
             for filename in filenames:
                 filepath = join(dirpath, filename)
diff --git a/tests/python/cycles_render_tests.py b/tests/python/cycles_render_tests.py
index a030cc5e0de..2122150467c 100755
--- a/tests/python/cycles_render_tests.py
+++ b/tests/python/cycles_render_tests.py
@@ -2,7 +2,10 @@
 # Apache License, Version 2.0
 
 import argparse
+import glob
 import os
+import pathlib
+import shlex
 import shutil
 import subprocess
 import sys
@@ -24,7 +27,7 @@ class COLORS_DUMMY:
 COLORS = COLORS_DUMMY
 
 
-def printMessage(type, status, message):
+def print_message(message, type=None, status=''):
     if type == 'SUCCESS':
         print(COLORS.GREEN, end="")
     elif type == 'FAILURE':
@@ -50,38 +53,60 @@ def render_file(filepath):
     dirname = os.path.dirname(filepath)
     basedir = os.path.dirname(dirname)
     subject = os.path.basename(dirname)
+
+    custom_args = os.getenv('CYCLESTEST_ARGS')
+    custom_args = shlex.split(custom_args) if custom_args else []
+
+    # OSL and GPU examples
+    # custom_args += ["--python-expr", "import bpy; bpy.context.scene.cycles.shading_system = True"]
+    # custom_args += ["--python-expr", "import bpy; bpy.context.scene.cycles.device = 'GPU'"]
+
     if subject == 'opengl':
-        command = (
+        command = [
             BLENDER,
             "--window-geometry", "0", "0", "1", "1",
             "-noaudio",
             "--factory-startup",
             "--enable-autoexec",
             filepath,
-            "-E", "CYCLES",
-            # Run with OSL enabled
-            # "--python-expr", "import bpy; bpy.context.scene.cycles.shading_system = True",
+            "-E", "CYCLES"]
+        command += custom_args
+        command += [
             "-o", TEMP_FILE_MASK,
             "-F", "PNG",
             '--python', os.path.join(basedir,
                                      "util",
-                                     "render_opengl.py")
-        )
+                                     "render_opengl.py")]
+    elif subject == 'bake':
+        command = [
+            BLENDER,
+            "-b",
+            "-noaudio",
+            "--factory-startup",
+            "--enable-autoexec",
+            filepath,
+            "-E", "CYCLES"]
+        command += custom_args
+        command += [
+            "-o", TEMP_FILE_MASK,
+            "-F", "PNG",
+            '--python', os.path.join(basedir,
+                                     "util",
+                                     "render_bake.py")]
     else:
-        command = (
+        command = [
             BLENDER,
             "--background",
             "-noaudio",
             "--factory-startup",
             "--enable-autoexec",
             filepath,
-            "-E", "CYCLES",
-            # Run with OSL enabled
-            # "--python-expr", "import bpy; bpy.context.scene.cycles.shading_system = True",
+            "-E", "CYCLES"]
+        command += custom_args
+        command += [
             "-o", TEMP_FILE_MASK,
             "-F", "PNG",
-            "-f", "1",
-            )
+            "-f", "1"]
     try:
         output = subprocess.check_output(command)
         if VERBOSE:
@@ -109,68 +134,241 @@ def test_get_name(filepath):
     filename = os.path.basename(filepath)
     return os.path.splitext(filename)[0]
 
-
-def verify_output(filepath):
+def test_get_images(filepath):
     testname = test_get_name(filepath)
     dirpath = os.path.dirname(filepath)
-    reference_dirpath = os.path.join(dirpath, "reference_renders")
-    reference_image = os.path.join(reference_dirpath, testname + ".png")
-    failed_image = os.path.join(reference_dirpath, testname + ".fail.png")
-    if not os.path.exists(reference_image):
-        return False
+
+    old_dirpath = os.path.join(dirpath, "reference_renders")
+    old_img = os.path.join(old_dirpath, testname + ".png")
+
+    ref_dirpath = os.path.join(OUTDIR, os.path.basename(dirpath), "ref")
+    ref_img = os.path.join(ref_dirpath, testname + ".png")
+    if not os.path.exists(ref_dirpath):
+        os.makedirs(ref_dirpath)
+    if os.path.exists(old_img):
+        shutil.copy(old_img, ref_img)
+
+    new_dirpath = os.path.join(OUTDIR, os.path.basename(dirpath))
+    if not os.path.exists(new_dirpath):
+        os.makedirs(new_dirpath)
+    new_img = os.path.join(new_dirpath, testname + ".png")
+
+    diff_dirpath = os.path.join(OUTDIR, os.path.basename(dirpath), "diff")
+    if not os.path.exists(diff_dirpath):
+        os.makedirs(diff_dirpath)
+    diff_img = os.path.join(diff_dirpath, testname + ".diff.png")
+
+    return old_img, ref_img, new_img, diff_img
+
+
+class Report:
+    def __init__(self, testname):
+        self.failed_tests = ""
+        self.passed_tests = ""
+        self.testname = testname
+
+    def output(self):
+        # write intermediate data for single test
+        outdir = os.path.join(OUTDIR, self.testname)
+        if not os.path.exists(outdir):
+            os.makedirs(outdir)
+
+        filepath = os.path.join(outdir, "failed.data")
+        pathlib.Path(filepath).write_text(self.failed_tests)
+
+        filepath = os.path.join(outdir, "passed.data")
+        pathlib.Path(filepath).write_text(self.passed_tests)
+
+        # gather intermediate data for all tests
+        failed_data = sorted(glob.glob(os.path.join(OUTDIR, "*/failed.data")))
+        passed_data = sorted(glob.glob(os.path.join(OUTDIR, "*/passed.data")))
+
+        failed_tests = ""
+        passed_tests = ""
+
+        for filename in failed_data:
+            filepath = os.path.join(OUTDIR, filename)
+            failed_tests += pathlib.Path(filepath).read_text()
+        for filename in passed_data:
+            filepath = os.path.join(OUTDIR, filename)
+            passed_tests += pathlib.Path(filepath).read_text()
+
+        # write html for all tests
+        self.html = """
+<html>
+<head>
+    <title>Cycles Test Report</title>
+    <style>
+        img {{ image-rendering: pixelated; width: 256px; background-color: #000; }}
+        img.render {{
+            background-color: #fff;
+            background-image:
+              -moz-linear-gradient(45deg, #eee 25%, transparent 25%),
+              -moz-linear-gradient(-45deg, #eee 25%, transparent 25%),
+              -moz-linear-gradient(45deg, transparent 75%, #eee 75%),
+              -moz-linear-gradient(-45deg, transparent 75%, #eee 75%);
+            background-image:
+              -webkit-gradient(linear, 0 100%, 100% 0, color-stop(.25, #eee), color-stop(.25, transparent)),
+              -webkit-gradient(linear, 0 0, 100% 100%, color-stop(.25, #eee), color-stop(.25, transparent)),
+              -webkit-gradient(linear, 0 100%, 100% 0, color-stop(.75, transparent), color-stop(.75, #eee)),
+              -webkit-gradient(linear, 0 0, 100% 100%, color-stop(.75, transparent), color-stop(.75, #eee));
+
+            -moz-background-size:50px 50px;
+            background-size:50px 50px;
+            -webkit-background-size:50px 51px; /* override value for shitty webkit */
+
+            background-position:0 0, 25px 0, 25px -25px, 0px 25px;
+        }}
+        table td:first-child {{ width: 256px; }}
+    </style>
+    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css">
+</head>
+<body>
+    <div class="container">
+        <br/>
+        <h1>Cycles Test Report</h1>
+        <br/>
+        <table class="table table-striped">
+            <thead class="thead-default">
+                <tr><th>Name</th><th>New</th><th>Reference</th><th>Diff</th>
+            </thead>
+            {}{}
+        </table>
+        <br/>
+    </div>
+</body>
+</html>
+            """ . format(failed_tests, passed_tests)
+
+        filepath = os.path.join(OUTDIR, "report.html")
+        pathlib.Path(filepath).write_text(self.html)
+
+        print_message("Report saved to: " + pathlib.Path(filepath).as_uri())
+
+    def relative_url(self, filepath):
+        relpath = os.path.relpath(filepath, OUTDIR)
+        return pathlib.Path(relpath).as_posix()
+
+    def add_test(self, filepath, error):
+        name = test_get_name(filepath)
+        name = name.replace('_', ' ')
+
+        old_img, ref_img, new_img, diff_img = test_get_images(filepath)
+
+        status = error if error else ""
+        style = """ style="background-color: #f99;" """ if error else ""
+
+        new_url = self.relative_url(new_img)
+        ref_url = self.relative_url(ref_img)
+        diff_url = self.relative_url(diff_img)
+
+        test_html = """
+            <tr{}>
+                <td><b>{}</b><br/>{}<br/>{}</td>
+                <td><img src="{}" onmouseover="this.src='{}';" onmouseout="this.src='{}';" class="render"></td>
+                <td><img src="{}" onmouseover="this.src='{}';" onmouseout="this.src='{}';" class="render"></td>
+                <td><img src="{}"></td>
+            </tr>""" . format(style, name, self.testname, status,
+                              new_url, ref_url, new_url,
+                              ref_url, new_url, ref_url,
+                              diff_url)
+
+        if error:
+            self.failed_tests += test_html
+        else:
+            self.passed_tests += test_html
+
+
+def verify_output(report, filepath):
+    old_img, ref_img, new_img, diff_img = test_get_images(filepath)
+
+    # copy new image
+    if os.path.exists(new_img):
+        os.remove(new_img)
+    if os.path.exists(TEMP_FILE):
+        shutil.copy(TEMP_FILE, new_img)
+
+    update = os.getenv('CYCLESTEST_UPDATE')
+
+    if os.path.exists(ref_img):
+        # diff test with threshold
+        command = (
+            IDIFF,
+            "-fail", "0.016",
+            "-failpercent", "1",
+            ref_img,
+            TEMP_FILE,
+            )
+        try:
+            subprocess.check_output(command)
+            failed = False
+        except subprocess.CalledProcessError as e:
+            if VERBOSE:
+                print_message(e.output.decode("utf-8"))
+            failed = e.returncode != 1
+    else:
+        if not update:
+            return False
+
+        failed = True
+
+    if failed and update:
+        # update reference
+        shutil.copy(new_img, ref_img)
+        shutil.copy(new_img, old_img)
+        failed = False
+
+    # generate diff image
     command = (
         IDIFF,
-        "-fail", "0.015",
-        "-failpercent", "1",
-        reference_image,
-        TEMP_FILE,
+        "-o", diff_img,
+        "-abs", "-scale", "16",
+        ref_img,
+        TEMP_FILE
         )
+
     try:
         subprocess.check_output(command)
-        failed = False
     except subprocess.CalledProcessError as e:
         if VERBOSE:
-            print(e.output.decode("utf-8"))
-        failed = e.returncode != 1
-    if failed:
-        shutil.copy(TEMP_FILE, failed_image)
-    elif os.path.exists(failed_image):
-        os.remove(failed_image)
+            print_message(e.output.decode("utf-8"))
+
     return not failed
 
 
-def run_test(filepath):
+def run_test(report, filepath):
     testname = test_get_name(filepath)
     spacer = "." * (32 - len(testname))
-    printMessage('SUCCESS', 'RUN', testname)
+    print_message(testname, 'SUCCESS', 'RUN')
     time_start = time.time()
     error = render_file(filepath)
     status = "FAIL"
     if not error:
-        if not verify_output(filepath):
+        if not verify_output(report, filepath):
             error = "VERIFY"
     time_end = time.time()
     elapsed_ms = int((time_end - time_start) * 1000)
     if not error:
-        printMessage('SUCCESS', 'OK', "{} ({} ms)" .
-                     format(testname, elapsed_ms))
+        print_message("{} ({} ms)" . format(testname, elapsed_ms),
+                      'SUCCESS', 'OK')
     else:
         if error == "NO_CYCLES":
-            print("Can't perform tests because Cycles failed to load!")
-            return False
+            print_message("Can't perform tests because Cycles failed to load!")
+            return error
         elif error == "NO_START":
-            print('Can not perform tests because blender fails to start.',
+            print_message('Can not perform tests because blender fails to start.',
                   'Make sure INSTALL target was run.')
-            return False
+            return error
         elif error == 'VERIFY':
-            print("Rendered result is different from reference image")
+            print_message("Rendered result is different from reference image")
         else:
-            print("Unknown error %r" % error)
-        printMessage('FAILURE', 'FAILED', "{} ({} ms)" .
-                     format(testname, elapsed_ms))
+            print_message("Unknown error %r" % error)
+        print_message("{} ({} ms)" . format(testname, elapsed_ms),
+                      'FAILURE', 'FAILED')
     return error
 
 
+
 def blend_list(path):
     for dirpath, dirnames, filenames in os.walk(path):
         for filename in filenames:
@@ -178,17 +376,18 @@ def blend_list(path):
                 filepath = os.path.join(dirpath, filename)
                 yield filepath
 
-
 def run_all_tests(dirpath):
     passed_tests = []
     failed_tests = []
     all_files = list(blend_list(dirpath))
     all_files.sort()
-    printMessage('SUCCESS', "==========",
-                 "Running {} tests from 1 test case." . format(len(all_files)))
+    report = Report(os.path.basename(dirpath))
+    print_message("Running {} tests from 1 test case." .
+                  format(len(all_files)),
+                  'SUCCESS', "==========")
     time_start = time.time()
     for filepath in all_files:
-        error = run_test(filepath)
+        error = run_test(report, filepath)
         testname = test_get_name(filepath)
         if error:
             if error == "NO_CYCLES":
@@ -198,28 +397,33 @@ def run_all_tests(dirpath):
             failed_tests.append(testname)
         else:
             passed_tests.append(testname)
+        report.add_test(filepath, error)
     time_end = time.time()
     elapsed_ms = int((time_end - time_start) * 1000)
-    print("")
-    printMessage('SUCCESS', "==========",
-                 "{} tests from 1 test case ran. ({} ms total)" .
-                 format(len(all_files), elapsed_ms))
-    printMessage('SUCCESS', 'PASSED', "{} tests." .
-                 format(len(passed_tests)))
+    print_message("")
+    print_message("{} tests from 1 test case ran. ({} ms total)" .
+                  format(len(all_files), elapsed_ms),
+                  'SUCCESS', "==========")
+    print_message("{} tests." .
+                  format(len(passed_tests)),
+                  'SUCCESS', 'PASSED')
     if failed_tests:
-        printMessage('FAILURE', 'FAILED', "{} tests, listed below:" .
-                     format(len(failed_tests)))
+        print_message("{} tests, listed below:" .
+                     format(len(failed_tests)),
+                     'FAILURE', 'FAILED')
         failed_tests.sort()
         for test in failed_tests:
-            printMessage('FAILURE', "FAILED", "{}" . format(test))
-        return False
-    return True
+            print_message("{}" . format(test), 'FAILURE', "FAILED")
+
+    report.output()
+    return not bool(failed_tests)
 
 
 def create_argparse():
     parser = argparse.ArgumentParser()
     parser.add_argument("-blender", nargs="+")
     parser.add_argument("-testdir", nargs=1)
+    parser.add_argument("-outdir", nargs=1)
     parser.add_argument("-idiff", nargs=1)
     return parser
 
@@ -229,7 +433,7 @@ def main():
     args = parser.parse_args()
 
     global COLORS
-    global BLENDER, ROOT, IDIFF
+    global BLENDER, TESTDIR, IDIFF, OUTDIR
     global TEMP_FILE, TEMP_FILE_MASK, TEST_SCRIPT
     global VERBOSE
 
@@ -237,8 +441,12 @@ def main():
         COLORS = COLORS_ANSI
 
     BLENDER = args.blender[0]
-    ROOT = args.testdir[0]
+    TESTDIR = args.testdir[0]
     IDIFF = args.idiff[0]
+    OUTDIR = args.outdir[0]
+
+    if not os.path.exists(OUTDIR):
+        os.makedirs(OUTDIR)
 
     TEMP = tempfile.mkdtemp()
     TEMP_FILE_MASK = os.path.join(TEMP, "test")
@@ -248,7 +456,7 @@ def main():
 
     VERBOSE = os.environ.get("BLENDER_VERBOSE") is not None
 
-    ok = run_all_tests(ROOT)
+    ok = run_all_tests(TESTDIR)
 
     # Cleanup temp files and folders
     if os.path.exists(TEMP_FILE):