Implementation of OpenVDB as a possible cache format for smoke

simulations.

This commits implements OpenVDB as an extra cache format in the Point
Cache system for smoke simulations. Compilation with the library is
turned off by default for now, and shall be enabled when the library is
present.

A documentation of its doings is available here: http://
wiki.blender.org/index.php/User:Kevindietrich/OpenVDBSmokeExport.

A guide to compile OpenVDB can be found here (Linux): http://
wiki.blender.org/index.php?title=Dev:Doc/Building_Blender/Linux/
Dependencies_From_Source#OpenVDB

Reviewers: sergey, lukastoenne, brecht, campbellbarton

Reviewed By: brecht, campbellbarton

Subscribers: galenb, Blendify, robocyte, Lapineige, bliblubli,
jtheninja, lukasstockner97, dingto, brecht

Differential Revision: https://developer.blender.org/D1721

1 files changed, 51 insertions, 2 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e0326f1d75e..4ec5053eb58 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -242,6 +242,9 @@ option(WITH_OPENSUBDIV    "Enable OpenSubdiv for surface subdivision" _init_OPEN
 option(WITH_SUBSURF_WERROR  "Treat warnings as errors in subsurf code" OFF)
 mark_as_advanced(WITH_COMPOSITOR_WERROR)
 
+option(WITH_OPENVDB       "Enable features relying on OpenVDB" OFF)
+option(WITH_OPENVDB_BLOSC "Enable blosc compression for OpenVDB, only enable if OpenVDB was built with blosc support" OFF)
+
 # GHOST Windowing Library Options
 option(WITH_GHOST_DEBUG   "Enable debugging output for the GHOST library" OFF)
 mark_as_advanced(WITH_GHOST_DEBUG)
@@ -677,10 +680,11 @@ if(NOT WITH_BOOST)
 	set_and_warn(WITH_CYCLES         OFF)
 	set_and_warn(WITH_AUDASPACE      OFF)
 	set_and_warn(WITH_INTERNATIONAL  OFF)
+	set_and_warn(WITH_OPENVDB        OFF)
 
 	set_and_warn(WITH_OPENAL         OFF)  # depends on AUDASPACE
 	set_and_warn(WITH_GAMEENGINE     OFF)  # depends on AUDASPACE
-elseif(WITH_CYCLES OR WITH_OPENIMAGEIO OR WITH_AUDASPACE OR WITH_INTERNATIONAL)
+elseif(WITH_CYCLES OR WITH_OPENIMAGEIO OR WITH_AUDASPACE OR WITH_INTERNATIONAL OR WITH_OPENVDB)
 	# Keep enabled
 else()
 	# Enabled but we don't need it
@@ -1056,6 +1060,24 @@ if(UNIX AND NOT APPLE)
 		endif()
 	endif()
 
+	if(WITH_OPENVDB)
+		find_package_wrapper(OpenVDB)
+
+		set(TBB ${LIBDIR}/tbb)
+		set(TBB_LIBRARIES tbb)
+		set(TBB_LIBPATH ${TBB}/lib)
+
+		set(OPENVDB_LIBRARIES ${OPENVDB_LIBRARIES} ${BOOST_LIBRARIES} ${ZLIB_LIBRARIES} ${TBB_LIBRARIES})
+		set(OPENVDB_LIBPATH)  # TODO, remove and reference the absolute path everywhere
+		set(OPENVDB_DEFINITIONS)
+
+		if(NOT OPENVDB_FOUND)
+			set(WITH_OPENVDB OFF)
+			set(WITH_OPENVDB_BLOSC OFF)
+			message(STATUS "OpenVDB not found")
+		endif()
+	endif()
+
 	if(WITH_BOOST)
 		# uses in build instructions to override include and library variables
 		if(NOT BOOST_CUSTOM)
@@ -1076,6 +1098,9 @@ if(UNIX AND NOT APPLE)
 			if(WITH_CYCLES_NETWORK)
 				list(APPEND __boost_packages serialization)
 			endif()
+			if(WITH_OPENVDB)
+				list(APPEND __boost_packages iostreams)
+			endif()
 			find_package(Boost 1.48 COMPONENTS ${__boost_packages})
 			if(NOT Boost_FOUND)
 				# try to find non-multithreaded if -mt not found, this flag
@@ -1561,7 +1586,14 @@ elseif(WIN32)
 			set(OPENCOLORIO_LIBPATH ${LIBDIR}/opencolorio/lib)
 			set(OPENCOLORIO_DEFINITIONS)
 		endif()
-		
+
+		if(WITH_OPENVDB)
+			set(OPENVDB ${LIBDIR}/openvdb)
+			set(OPENVDB_INCLUDE_DIRS ${OPENVDB}/include)
+			set(OPENVDB_LIBRARIES openvdb ${TBB_LIBRARIES})
+			set(OPENVDB_LIBPATH ${LIBDIR}/openvdb/lib)
+			set(OPENVDB_DEFINITIONS)
+		endif()
 
 		if(WITH_MOD_CLOTH_ELTOPO)
 			set(LAPACK ${LIBDIR}/lapack)
@@ -1834,6 +1866,14 @@ elseif(WIN32)
 			set(SDL_LIBPATH ${SDL}/lib)
 		endif()
 
+		if(WITH_OPENVDB)
+			set(OPENVDB ${LIBDIR}/openvdb)
+			set(OPENVDB_INCLUDE_DIRS ${OPENVDB}/include)
+			set(OPENVDB_LIBRARIES openvdb ${TBB_LIBRARIES})
+			set(OPENVDB_LIBPATH ${LIBDIR}/openvdb/lib)
+			set(OPENVDB_DEFINITIONS)
+		endif()
+
 		set(PLATFORM_LINKFLAGS "-Xlinker --stack=2097152")
 
 		## DISABLE - causes linking errors 
@@ -2139,6 +2179,14 @@ elseif(APPLE)
 		set(OPENCOLORIO_LIBPATH ${OPENCOLORIO}/lib)
 	endif()
 
+	if(WITH_OPENVDB)
+		set(OPENVDB ${LIBDIR}/openvdb)
+		set(OPENVDB_INCLUDE_DIRS ${OPENVDB}/include)
+		set(OPENVDB_LIBRARIES openvdb ${TBB_LIBRARIES})
+		set(OPENVDB_LIBPATH ${LIBDIR}/openvdb/lib)
+		set(OPENVDB_DEFINITIONS)
+	endif()
+
 	if(WITH_LLVM)
 		set(LLVM_ROOT_DIR ${LIBDIR}/llvm CACHE PATH	"Path to the LLVM installation")
 		set(LLVM_VERSION "3.4" CACHE STRING	"Version of LLVM to use")
@@ -2981,6 +3029,7 @@ if(FIRST_RUN)
 	info_cfg_option(WITH_CYCLES)
 	info_cfg_option(WITH_FREESTYLE)
 	info_cfg_option(WITH_OPENCOLORIO)
+	info_cfg_option(WITH_OPENVDB)
 
 	info_cfg_text("Compiler Options:")
 	info_cfg_option(WITH_BUILDINFO)