Merge branch 'master' into temp-legacy-mesh-format-optiontemp-legacy-mesh-format-option

613 files changed, 9562 insertions, 6504 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1416b5b4189..c998919622e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -565,15 +565,19 @@ endif()
 option(WITH_OPENGL              "When off limits visibility of the opengl headers to just bf_gpu and gawain (temporary option for development purposes)" ON)
 option(WITH_GLEW_ES             "Switches to experimental copy of GLEW that has support for OpenGL ES. (temporary option for development purposes)" OFF)
 option(WITH_GL_PROFILE_ES20     "Support using OpenGL ES 2.0. (through either EGL or the AGL/WGL/XGL 'es20' profile)"                               OFF)
-option(WITH_GPU_SHADER_BUILDER  "Shader builder is a developer option enabling linting on GLSL during compilation"                                  OFF)
+option(WITH_GPU_BUILDTIME_SHADER_BUILDER  "Shader builder is a developer option enabling linting on GLSL during compilation"                                  OFF)
 
 mark_as_advanced(
   WITH_OPENGL
   WITH_GLEW_ES
   WITH_GL_PROFILE_ES20
-  WITH_GPU_SHADER_BUILDER
+  WITH_GPU_BUILDTIME_SHADER_BUILDER
 )
 
+if(WITH_HEADLESS)
+  set(WITH_OPENGL OFF)
+endif()
+
 # Metal
 
 if (APPLE)
diff --git a/build_files/build_environment/cmake/dpcpp.cmake b/build_files/build_environment/cmake/dpcpp.cmake
index 563bc7aeff4..3c3fe201073 100644
--- a/build_files/build_environment/cmake/dpcpp.cmake
+++ b/build_files/build_environment/cmake/dpcpp.cmake
@@ -63,6 +63,8 @@ set(DPCPP_EXTRA_ARGS
   -DPython3_ROOT_DIR=${LIBDIR}/python/
   -DPython3_EXECUTABLE=${PYTHON_BINARY}
   -DPYTHON_EXECUTABLE=${PYTHON_BINARY}
+  -DLLDB_ENABLE_CURSES=OFF
+  -DLLVM_ENABLE_TERMINFO=OFF
 )
 
 if(WIN32)
diff --git a/build_files/build_environment/cmake/embree.cmake b/build_files/build_environment/cmake/embree.cmake
index 2eafc729111..8c689cf000b 100644
--- a/build_files/build_environment/cmake/embree.cmake
+++ b/build_files/build_environment/cmake/embree.cmake
@@ -10,18 +10,12 @@ set(EMBREE_EXTRA_ARGS
   -DEMBREE_RAY_MASK=ON
   -DEMBREE_FILTER_FUNCTION=ON
   -DEMBREE_BACKFACE_CULLING=OFF
-  -DEMBREE_MAX_ISA=AVX2
   -DEMBREE_TASKING_SYSTEM=TBB
   -DEMBREE_TBB_ROOT=${LIBDIR}/tbb
   -DTBB_ROOT=${LIBDIR}/tbb
-  -DTBB_STATIC_LIB=${TBB_STATIC_LIBRARY}
 )
 
-if(BLENDER_PLATFORM_ARM)
-  set(EMBREE_EXTRA_ARGS
-    ${EMBREE_EXTRA_ARGS}
-    -DEMBREE_MAX_ISA=NEON)
-else()
+if (NOT BLENDER_PLATFORM_ARM)
   set(EMBREE_EXTRA_ARGS
     ${EMBREE_EXTRA_ARGS}
     -DEMBREE_MAX_ISA=AVX2)
@@ -30,23 +24,10 @@ endif()
 if(TBB_STATIC_LIBRARY)
   set(EMBREE_EXTRA_ARGS
     ${EMBREE_EXTRA_ARGS}
-    -DEMBREE_TBB_LIBRARY_NAME=tbb_static
-    -DEMBREE_TBBMALLOC_LIBRARY_NAME=tbbmalloc_static
+    -DEMBREE_TBB_COMPONENT=tbb_static
   )
 endif()
 
-if(WIN32)
-  set(EMBREE_BUILD_DIR ${BUILD_MODE}/)
-  if(BUILD_MODE STREQUAL Debug)
-    list(APPEND EMBREE_EXTRA_ARGS
-     -DEMBREE_TBBMALLOC_LIBRARY_NAME=tbbmalloc_debug
-     -DEMBREE_TBB_LIBRARY_NAME=tbb_debug
-    )
-  endif()
-else()
-  set(EMBREE_BUILD_DIR)
-endif()
-
 ExternalProject_Add(external_embree
   URL file://${PACKAGE_DIR}/${EMBREE_FILE}
   DOWNLOAD_DIR ${DOWNLOAD_DIR}
diff --git a/build_files/build_environment/cmake/versions.cmake b/build_files/build_environment/cmake/versions.cmake
index 1a4ad291581..42c82b68654 100644
--- a/build_files/build_environment/cmake/versions.cmake
+++ b/build_files/build_environment/cmake/versions.cmake
@@ -410,9 +410,9 @@ set(SQLITE_HASH fb558c49ee21a837713c4f1e7e413309aabdd9c7)
 set(SQLITE_HASH_TYPE SHA1)
 set(SQLITE_FILE sqlite-src-3240000.zip)
 
-set(EMBREE_VERSION 3.13.3)
+set(EMBREE_VERSION 3.13.4)
 set(EMBREE_URI https://github.com/embree/embree/archive/v${EMBREE_VERSION}.zip)
-set(EMBREE_HASH f62766ba54e48a2f327c3a22596e7133)
+set(EMBREE_HASH 52d0be294d6c88ba7a6c9e046796e7be)
 set(EMBREE_HASH_TYPE MD5)
 set(EMBREE_FILE embree-v${EMBREE_VERSION}.zip)
 
diff --git a/build_files/build_environment/install_deps.sh b/build_files/build_environment/install_deps.sh
index cfba4f12c73..2441b9ad89b 100755
--- a/build_files/build_environment/install_deps.sh
+++ b/build_files/build_environment/install_deps.sh
@@ -567,7 +567,7 @@ OPENCOLLADA_FORCE_BUILD=false
 OPENCOLLADA_FORCE_REBUILD=false
 OPENCOLLADA_SKIP=false
 
-EMBREE_VERSION="3.13.3"
+EMBREE_VERSION="3.13.4"
 EMBREE_VERSION_SHORT="3.13"
 EMBREE_VERSION_MIN="3.13"
 EMBREE_VERSION_MEX="4.0"
diff --git a/build_files/build_environment/patches/embree.diff b/build_files/build_environment/patches/embree.diff
index e83d754a465..e448fe5ee2e 100644
--- a/build_files/build_environment/patches/embree.diff
+++ b/build_files/build_environment/patches/embree.diff
@@ -1,30 +1,37 @@
-diff -Naur orig/common/sys/platform.h external_embree/common/sys/platform.h
---- orig/common/sys/platform.h	2020-05-13 23:08:53 -0600
-+++ external_embree/common/sys/platform.h	2020-06-13 17:40:26 -0600
-@@ -84,8 +84,8 @@
- ////////////////////////////////////////////////////////////////////////////////
+diff -Naur org/kernels/rtcore_config.h.in embree-3.13.4/kernels/rtcore_config.h.in
+--- org/kernels/rtcore_config.h.in      2022-06-14 22:13:52 -0600
++++ embree-3.13.4/kernels/rtcore_config.h.in    2022-06-24 15:20:12 -0600
+@@ -14,6 +14,7 @@
+ #cmakedefine01 EMBREE_MIN_WIDTH
+ #define RTC_MIN_WIDTH EMBREE_MIN_WIDTH
+
++#cmakedefine EMBREE_STATIC_LIB
+ #cmakedefine EMBREE_API_NAMESPACE
+
+ #if defined(EMBREE_API_NAMESPACE)
+diff --git a/kernels/CMakeLists.txt b/kernels/CMakeLists.txt
+index 7c2f43d..106b1d5 100644
+--- a/kernels/CMakeLists.txt
++++ b/kernels/CMakeLists.txt
+@@ -201,6 +201,12 @@ embree_files(EMBREE_LIBRARY_FILES_AVX512 ${AVX512})
+ #message("AVX2: ${EMBREE_LIBRARY_FILES_AVX2}")
+ #message("AVX512: ${EMBREE_LIBRARY_FILES_AVX512}")
  
- #ifdef __WIN32__
--#define dll_export __declspec(dllexport)
--#define dll_import __declspec(dllimport)
-+#define dll_export 
-+#define dll_import 
- #else
- #define dll_export __attribute__ ((visibility ("default")))
- #define dll_import 
-diff --git orig/common/tasking/CMakeLists.txt external_embree/common/tasking/CMakeLists.txt
---- orig/common/tasking/CMakeLists.txt
-+++ external_embree/common/tasking/CMakeLists.txt
-@@ -27,7 +27,11 @@
-     else()
-       # If not found try getting older TBB via module (FindTBB.cmake)
-       unset(TBB_DIR CACHE)
--      find_package(TBB 4.1 REQUIRED tbb)
-+      if (TBB_STATIC_LIB)
-+        find_package(TBB 4.1 REQUIRED tbb_static)
-+      else()
-+        find_package(TBB 4.1 REQUIRED tbb)
-+      endif()
-       if (TBB_FOUND)
-         TARGET_LINK_LIBRARIES(tasking PUBLIC TBB)
-         TARGET_INCLUDE_DIRECTORIES(tasking PUBLIC "${TBB_INCLUDE_DIRS}")
++# Bundle Neon2x into the main static library.
++IF(EMBREE_ISA_NEON2X AND EMBREE_STATIC_LIB)
++  LIST(APPEND EMBREE_LIBRARY_FILES ${EMBREE_LIBRARY_FILES_AVX2})
++  LIST(REMOVE_DUPLICATES EMBREE_LIBRARY_FILES)
++ENDIF()
++
+ # replaces all .cpp files with a dummy file that includes that .cpp file
+ # this is to work around an ICC name mangling issue related to lambda functions under windows
+ MACRO (CreateISADummyFiles list isa)
+@@ -277,7 +283,7 @@ IF (EMBREE_ISA_AVX  AND EMBREE_LIBRARY_FILES_AVX)
+   ENDIF()
+ ENDIF()
+ 
+-IF (EMBREE_ISA_AVX2 AND EMBREE_LIBRARY_FILES_AVX2)
++IF (EMBREE_ISA_AVX2 AND EMBREE_LIBRARY_FILES_AVX2 AND NOT (EMBREE_ISA_NEON2X AND EMBREE_STATIC_LIB))
+   DISABLE_STACK_PROTECTOR_FOR_INTERSECTORS(${EMBREE_LIBRARY_FILES_AVX2})
+   ADD_LIBRARY(embree_avx2 STATIC ${EMBREE_LIBRARY_FILES_AVX2})
+   TARGET_LINK_LIBRARIES(embree_avx2 PRIVATE tasking)
diff --git a/doc/python_api/sphinx_doc_gen.py b/doc/python_api/sphinx_doc_gen.py
index 17ffdb8e244..f5e0369cede 100644
--- a/doc/python_api/sphinx_doc_gen.py
+++ b/doc/python_api/sphinx_doc_gen.py
@@ -1529,7 +1529,8 @@ def pyrna2sphinx(basepath):
         else:
             fw(".. class:: %s\n\n" % struct_id)
 
-        fw("   %s\n\n" % struct.description)
+        write_indented_lines("   ", fw, struct.description, False)
+        fw("\n")
 
         # Properties sorted in alphabetical order.
         sorted_struct_properties = struct.properties[:]
diff --git a/extern/audaspace/bindings/C/AUD_Special.cpp b/extern/audaspace/bindings/C/AUD_Special.cpp
index 1ce25dcd41c..a5ecb7a6dc0 100644
--- a/extern/audaspace/bindings/C/AUD_Special.cpp
+++ b/extern/audaspace/bindings/C/AUD_Special.cpp
@@ -270,7 +270,7 @@ AUD_API int AUD_readSound(AUD_Sound* sound, float* buffer, int length, int sampl
 	return length;
 }
 
-AUD_API const char* AUD_mixdown(AUD_Sound* sound, unsigned int start, unsigned int length, unsigned int buffersize, const char* filename, AUD_DeviceSpecs specs, AUD_Container format, AUD_Codec codec, unsigned int bitrate, void(*callback)(float, void*), void* data)
+AUD_API int AUD_mixdown(AUD_Sound* sound, unsigned int start, unsigned int length, unsigned int buffersize, const char* filename, AUD_DeviceSpecs specs, AUD_Container format, AUD_Codec codec, unsigned int bitrate, void(*callback)(float, void*), void* data, char* error, size_t errorsize)
 {
 	try
 	{
@@ -282,15 +282,20 @@ AUD_API const char* AUD_mixdown(AUD_Sound* sound, unsigned int start, unsigned i
 		std::shared_ptr<IWriter> writer = FileWriter::createWriter(filename, convCToDSpec(specs), static_cast<Container>(format), static_cast<Codec>(codec), bitrate);
 		FileWriter::writeReader(reader, writer, length, buffersize, callback, data);
 
-		return nullptr;
+		return true;
 	}
 	catch(Exception& e)
 	{
-		return e.getMessage().c_str();
+		if(error && errorsize)
+		{
+			std::strncpy(error, e.getMessage().c_str(), errorsize);
+			error[errorsize - 1] = '\0';
+		}
+		return false;
 	}
 }
 
-AUD_API const char* AUD_mixdown_per_channel(AUD_Sound* sound, unsigned int start, unsigned int length, unsigned int buffersize, const char* filename, AUD_DeviceSpecs specs, AUD_Container format, AUD_Codec codec, unsigned int bitrate, void(*callback)(float, void*), void* data)
+AUD_API int AUD_mixdown_per_channel(AUD_Sound* sound, unsigned int start, unsigned int length, unsigned int buffersize, const char* filename, AUD_DeviceSpecs specs, AUD_Container format, AUD_Codec codec, unsigned int bitrate, void(*callback)(float, void*), void* data, char* error, size_t errorsize)
 {
 	try
 	{
@@ -328,11 +333,16 @@ AUD_API const char* AUD_mixdown_per_channel(AUD_Sound* sound, unsigned int start
 		reader->seek(start);
 		FileWriter::writeReader(reader, writers, length, buffersize, callback, data);
 
-		return nullptr;
+		return true;
 	}
 	catch(Exception& e)
 	{
-		return e.getMessage().c_str();
+		if(error && errorsize)
+		{
+			std::strncpy(error, e.getMessage().c_str(), errorsize);
+			error[errorsize - 1] = '\0';
+		}
+		return false;
 	}
 }
 
diff --git a/extern/audaspace/bindings/C/AUD_Special.h b/extern/audaspace/bindings/C/AUD_Special.h
index 2f5d13c6fd9..1d181d33f87 100644
--- a/extern/audaspace/bindings/C/AUD_Special.h
+++ b/extern/audaspace/bindings/C/AUD_Special.h
@@ -70,13 +70,15 @@ extern AUD_API int AUD_readSound(AUD_Sound* sound, float* buffer, int length, in
  * \param bitrate The bitrate for encoding.
  * \param callback A callback function that is called periodically during mixdown, reporting progress if length > 0. Can be NULL.
  * \param data Pass through parameter that is passed to the callback.
- * \return An error message or NULL in case of success.
+ * \param error String buffer to copy the error message to in case of failure.
+ * \param errorsize The size of the error buffer.
+ * \return Whether or not the operation succeeded.
  */
-extern AUD_API const char* AUD_mixdown(AUD_Sound* sound, unsigned int start, unsigned int length,
+extern AUD_API int AUD_mixdown(AUD_Sound* sound, unsigned int start, unsigned int length,
 							   unsigned int buffersize, const char* filename,
 							   AUD_DeviceSpecs specs, AUD_Container format,
 							   AUD_Codec codec, unsigned int bitrate,
-							   void(*callback)(float, void*), void* data);
+							   void(*callback)(float, void*), void* data, char* error, size_t errorsize);
 
 /**
  * Mixes a sound down into multiple files.
@@ -91,13 +93,15 @@ extern AUD_API const char* AUD_mixdown(AUD_Sound* sound, unsigned int start, uns
  * \param bitrate The bitrate for encoding.
  * \param callback A callback function that is called periodically during mixdown, reporting progress if length > 0. Can be NULL.
  * \param data Pass through parameter that is passed to the callback.
- * \return An error message or NULL in case of success.
+ * \param error String buffer to copy the error message to in case of failure.
+ * \param errorsize The size of the error buffer.
+ * \return Whether or not the operation succeeded.
  */
-extern AUD_API const char* AUD_mixdown_per_channel(AUD_Sound* sound, unsigned int start, unsigned int length,
+extern AUD_API int AUD_mixdown_per_channel(AUD_Sound* sound, unsigned int start, unsigned int length,
 										   unsigned int buffersize, const char* filename,
 										   AUD_DeviceSpecs specs, AUD_Container format,
 										   AUD_Codec codec, unsigned int bitrate,
-										   void(*callback)(float, void*), void* data);
+										   void(*callback)(float, void*), void* data, char* error, size_t errorsize);
 
 /**
  * Opens a read device and prepares it for mixdown of the sound scene.
diff --git a/intern/cycles/blender/CMakeLists.txt b/intern/cycles/blender/CMakeLists.txt
index 4919b99cfe0..63d89221d20 100644
--- a/intern/cycles/blender/CMakeLists.txt
+++ b/intern/cycles/blender/CMakeLists.txt
@@ -128,10 +128,6 @@ if(WITH_OPENIMAGEDENOISE)
   )
 endif()
 
-if(WITH_EXPERIMENTAL_FEATURES)
-  add_definitions(-DWITH_NEW_CURVES_TYPE)
-endif()
-
 blender_add_lib(bf_intern_cycles "${SRC}" "${INC}" "${INC_SYS}" "${LIB}")
 
 add_dependencies(bf_intern_cycles bf_rna)
diff --git a/intern/cycles/blender/addon/presets.py b/intern/cycles/blender/addon/presets.py
index cc6d574da99..e1f08c07eaf 100644
--- a/intern/cycles/blender/addon/presets.py
+++ b/intern/cycles/blender/addon/presets.py
@@ -84,10 +84,36 @@ class AddPresetViewportSampling(AddPresetBase, Operator):
     preset_subdir = "cycles/viewport_sampling"
 
 
+class AddPresetPerformance(AddPresetBase, Operator):
+    '''Add an Performance Preset'''
+    bl_idname = "render.cycles_performance_preset_add"
+    bl_label = "Add Performance Preset"
+    preset_menu = "CYCLES_PT_performance_presets"
+
+    preset_defines = [
+        "render = bpy.context.scene.render"
+        "cycles = bpy.context.scene.cycles"
+    ]
+
+    preset_values = [
+        "render.threads_mode",
+        "render.use_persistent_data",
+        "cycles.debug_use_spatial_splits",
+        "cycles.debug_use_compact_bvh",
+        "cycles.debug_use_hair_bvh",
+        "cycles.debug_bvh_time_steps",
+        "cycles.use_auto_tile",
+        "cycles.tile_size",
+    ]
+
+    preset_subdir = "cycles/performance"
+
+
 classes = (
     AddPresetIntegrator,
     AddPresetSampling,
     AddPresetViewportSampling,
+    AddPresetPerformance,
 )
 
 
diff --git a/intern/cycles/blender/addon/properties.py b/intern/cycles/blender/addon/properties.py
index e88b65b5119..2c926893f9d 100644
--- a/intern/cycles/blender/addon/properties.py
+++ b/intern/cycles/blender/addon/properties.py
@@ -693,7 +693,7 @@ class CyclesRenderSettings(bpy.types.PropertyGroup):
     debug_use_compact_bvh: BoolProperty(
         name="Use Compact BVH",
         description="Use compact BVH structure (uses less ram but renders slower)",
-        default=True,
+        default=False,
     )
     debug_bvh_time_steps: IntProperty(
         name="BVH Time Steps",
@@ -1560,7 +1560,7 @@ class CyclesPreferences(bpy.types.AddonPreferences):
                 if sys.platform.startswith("win"):
                     col.label(text="and Windows driver version 101.1660 or newer", icon='BLANK1')
                 elif sys.platform.startswith("linux"):
-                    col.label(text="and Linux driver version xx.xx.28000 or newer", icon='BLANK1')
+                    col.label(text="and Linux driver version xx.xx.23570 or newer", icon='BLANK1')
             elif device_type == 'METAL':
                 col.label(text="Requires Apple Silicon with macOS 12.2 or newer", icon='BLANK1')
                 col.label(text="or AMD with macOS 12.3 or newer", icon='BLANK1')
diff --git a/intern/cycles/blender/addon/ui.py b/intern/cycles/blender/addon/ui.py
index 77da3f36685..0fead409866 100644
--- a/intern/cycles/blender/addon/ui.py
+++ b/intern/cycles/blender/addon/ui.py
@@ -43,6 +43,12 @@ class CYCLES_PT_integrator_presets(CyclesPresetPanel):
     preset_add_operator = "render.cycles_integrator_preset_add"
 
 
+class CYCLES_PT_performance_presets(CyclesPresetPanel):
+    bl_label = "Performance Presets"
+    preset_subdir = "cycles/performance"
+    preset_add_operator = "render.cycles_performance_preset_add"
+
+
 class CyclesButtonsPanel:
     bl_space_type = "PROPERTIES"
     bl_region_type = "WINDOW"
@@ -624,6 +630,9 @@ class CYCLES_RENDER_PT_performance(CyclesButtonsPanel, Panel):
     bl_label = "Performance"
     bl_options = {'DEFAULT_CLOSED'}
 
+    def draw_header_preset(self, context):
+        CYCLES_PT_performance_presets.draw_panel_header(self.layout)
+
     def draw(self, context):
         pass
 
@@ -943,6 +952,8 @@ class CYCLES_CAMERA_PT_dof(CyclesButtonsPanel, Panel):
 
         col = split.column()
         col.prop(dof, "focus_object", text="Focus Object")
+        if dof.focus_object and dof.focus_object.type == 'ARMATURE':
+            col.prop_search(dof, "focus_subtarget", dof.focus_object.data, "bones", text="Focus Bone")
 
         sub = col.row()
         sub.active = dof.focus_object is None
@@ -1202,7 +1213,7 @@ class CYCLES_OBJECT_PT_lightgroup(CyclesButtonsPanel, Panel):
         sub.prop_search(ob, "lightgroup", view_layer, "lightgroups", text="Light Group", results_are_suggestions=True)
 
         sub = row.column(align=True)
-        sub.active = bool(ob.lightgroup) and not any(lg.name == ob.lightgroup for lg in view_layer.lightgroups)
+        sub.enabled = bool(ob.lightgroup) and not any(lg.name == ob.lightgroup for lg in view_layer.lightgroups)
         sub.operator("scene.view_layer_add_lightgroup", icon='ADD', text="").name = ob.lightgroup
 
 
@@ -1640,7 +1651,7 @@ class CYCLES_WORLD_PT_settings_light_group(CyclesButtonsPanel, Panel):
         )
 
         sub = row.column(align=True)
-        sub.active = bool(world.lightgroup) and not any(lg.name == world.lightgroup for lg in view_layer.lightgroups)
+        sub.enabled = bool(world.lightgroup) and not any(lg.name == world.lightgroup for lg in view_layer.lightgroups)
         sub.operator("scene.view_layer_add_lightgroup", icon='ADD', text="").name = world.lightgroup
 
 
@@ -2269,6 +2280,7 @@ classes = (
     CYCLES_PT_sampling_presets,
     CYCLES_PT_viewport_sampling_presets,
     CYCLES_PT_integrator_presets,
+    CYCLES_PT_performance_presets,
     CYCLES_RENDER_PT_sampling,
     CYCLES_RENDER_PT_sampling_viewport,
     CYCLES_RENDER_PT_sampling_viewport_denoise,
diff --git a/intern/cycles/blender/camera.cpp b/intern/cycles/blender/camera.cpp
index 2ab5f02a337..6926c833096 100644
--- a/intern/cycles/blender/camera.cpp
+++ b/intern/cycles/blender/camera.cpp
@@ -143,11 +143,20 @@ static float blender_camera_focal_distance(BL::RenderEngine &b_engine,
   if (!b_dof_object)
     return b_camera.dof().focus_distance();
 
+  Transform dofmat = get_transform(b_dof_object.matrix_world());
+
+  string focus_subtarget = b_camera.dof().focus_subtarget();
+  if (b_dof_object.pose() && !focus_subtarget.empty()) {
+    BL::PoseBone b_bone = b_dof_object.pose().bones[focus_subtarget];
+    if (b_bone) {
+      dofmat = dofmat * get_transform(b_bone.matrix());
+    }
+  }
+
   /* for dof object, return distance along camera Z direction */
   BL::Array<float, 16> b_ob_matrix;
   b_engine.camera_model_matrix(b_ob, bcam->use_spherical_stereo, b_ob_matrix);
   Transform obmat = transform_clear_scale(get_transform(b_ob_matrix));
-  Transform dofmat = get_transform(b_dof_object.matrix_world());
   float3 view_dir = normalize(transform_get_column(&obmat, 2));
   float3 dof_dir = transform_get_column(&obmat, 3) - transform_get_column(&dofmat, 3);
   return fabsf(dot(view_dir, dof_dir));
diff --git a/intern/cycles/blender/curves.cpp b/intern/cycles/blender/curves.cpp
index 10012720bd8..c4154bce022 100644
--- a/intern/cycles/blender/curves.cpp
+++ b/intern/cycles/blender/curves.cpp
@@ -613,8 +613,6 @@ void BlenderSync::sync_particle_hair(
   }
 }
 
-#ifdef WITH_NEW_CURVES_TYPE
-
 static std::optional<BL::FloatAttribute> find_curves_radius_attribute(BL::Curves b_curves)
 {
   for (BL::Attribute &b_attribute : b_curves.attributes) {
@@ -632,6 +630,25 @@ static std::optional<BL::FloatAttribute> find_curves_radius_attribute(BL::Curves
   return std::nullopt;
 }
 
+static BL::FloatVectorAttribute find_curves_position_attribute(BL::Curves b_curves)
+{
+  for (BL::Attribute &b_attribute : b_curves.attributes) {
+    if (b_attribute.name() != "position") {
+      continue;
+    }
+    if (b_attribute.domain() != BL::Attribute::domain_POINT) {
+      continue;
+    }
+    if (b_attribute.data_type() != BL::Attribute::data_type_FLOAT_VECTOR) {
+      continue;
+    }
+    return BL::FloatVectorAttribute{b_attribute};
+  }
+  /* The position attribute must exist. */
+  assert(false);
+  return BL::FloatVectorAttribute{b_curves.attributes[0]};
+}
+
 template<typename TypeInCycles, typename GetValueAtIndex>
 static void fill_generic_attribute(BL::Curves &b_curves,
                                    TypeInCycles *data,
@@ -795,16 +812,16 @@ static void attr_create_generic(Scene *scene,
   }
 }
 
-static float4 hair_point_as_float4(BL::Curves b_curves,
+static float4 hair_point_as_float4(BL::FloatVectorAttribute b_attr_position,
                                    std::optional<BL::FloatAttribute> b_attr_radius,
                                    const int index)
 {
-  float4 mP = float3_to_float4(get_float3(b_curves.position_data[index].vector()));
+  float4 mP = float3_to_float4(get_float3(b_attr_position.data[index].vector()));
   mP.w = b_attr_radius ? b_attr_radius->data[index].value() : 0.0f;
   return mP;
 }
 
-static float4 interpolate_hair_points(BL::Curves b_curves,
+static float4 interpolate_hair_points(BL::FloatVectorAttribute b_attr_position,
                                       std::optional<BL::FloatAttribute> b_attr_radius,
                                       const int first_point_index,
                                       const int num_points,
@@ -814,8 +831,8 @@ static float4 interpolate_hair_points(BL::Curves b_curves,
   const int point_a = clamp((int)curve_t, 0, num_points - 1);
   const int point_b = min(point_a + 1, num_points - 1);
   const float t = curve_t - (float)point_a;
-  return lerp(hair_point_as_float4(b_curves, b_attr_radius, first_point_index + point_a),
-              hair_point_as_float4(b_curves, b_attr_radius, first_point_index + point_b),
+  return lerp(hair_point_as_float4(b_attr_position, b_attr_radius, first_point_index + point_a),
+              hair_point_as_float4(b_attr_position, b_attr_radius, first_point_index + point_b),
               t);
 }
 
@@ -848,6 +865,7 @@ static void export_hair_curves(Scene *scene,
 
   hair->reserve_curves(num_curves, num_keys);
 
+  BL::FloatVectorAttribute b_attr_position = find_curves_position_attribute(b_curves);
   std::optional<BL::FloatAttribute> b_attr_radius = find_curves_radius_attribute(b_curves);
 
   /* Export curves and points. */
@@ -866,7 +884,7 @@ static void export_hair_curves(Scene *scene,
 
     /* Position and radius. */
     for (int i = 0; i < num_points; i++) {
-      const float3 co = get_float3(b_curves.position_data[first_point_index + i].vector());
+      const float3 co = get_float3(b_attr_position.data[first_point_index + i].vector());
       const float radius = b_attr_radius ? b_attr_radius->data[first_point_index + i].value() :
                                            0.005f;
       hair->add_curve_key(co, radius);
@@ -923,6 +941,7 @@ static void export_hair_curves_motion(Hair *hair, BL::Curves b_curves, int motio
   int num_motion_keys = 0;
   int curve_index = 0;
 
+  BL::FloatVectorAttribute b_attr_position = find_curves_position_attribute(b_curves);
   std::optional<BL::FloatAttribute> b_attr_radius = find_curves_radius_attribute(b_curves);
 
   for (int i = 0; i < num_curves; i++) {
@@ -938,7 +957,7 @@ static void export_hair_curves_motion(Hair *hair, BL::Curves b_curves, int motio
         int point_index = first_point_index + i;
 
         if (point_index < num_keys) {
-          mP[num_motion_keys] = hair_point_as_float4(b_curves, b_attr_radius, point_index);
+          mP[num_motion_keys] = hair_point_as_float4(b_attr_position, b_attr_radius, point_index);
           num_motion_keys++;
 
           if (!have_motion) {
@@ -958,7 +977,7 @@ static void export_hair_curves_motion(Hair *hair, BL::Curves b_curves, int motio
       for (int i = 0; i < curve.num_keys; i++) {
         const float step = i * step_size;
         mP[num_motion_keys] = interpolate_hair_points(
-            b_curves, b_attr_radius, first_point_index, num_points, step);
+            b_attr_position, b_attr_radius, first_point_index, num_points, step);
         num_motion_keys++;
       }
       have_motion = true;
@@ -990,15 +1009,6 @@ void BlenderSync::sync_hair(Hair *hair, BObjectInfo &b_ob_info, bool motion, int
     export_hair_curves(scene, hair, b_curves, need_motion, motion_scale);
   }
 }
-#else
-void BlenderSync::sync_hair(Hair *hair, BObjectInfo &b_ob_info, bool motion, int motion_step)
-{
-  (void)hair;
-  (void)b_ob_info;
-  (void)motion;
-  (void)motion_step;
-}
-#endif
 
 void BlenderSync::sync_hair(BL::Depsgraph b_depsgraph, BObjectInfo &b_ob_info, Hair *hair)
 {
@@ -1010,14 +1020,11 @@ void BlenderSync::sync_hair(BL::Depsgraph b_depsgraph, BObjectInfo &b_ob_info, H
   new_hair.set_used_shaders(used_shaders);
 
   if (view_layer.use_hair) {
-#ifdef WITH_NEW_CURVES_TYPE
     if (b_ob_info.object_data.is_a(&RNA_Curves)) {
       /* Hair object. */
       sync_hair(&new_hair, b_ob_info, false);
     }
-    else
-#endif
-    {
+    else {
       /* Particle hair. */
       bool need_undeformed = new_hair.need_attribute(scene, ATTR_STD_GENERATED);
       BL::Mesh b_mesh = object_to_mesh(
@@ -1064,15 +1071,12 @@ void BlenderSync::sync_hair_motion(BL::Depsgraph b_depsgraph,
 
   /* Export deformed coordinates. */
   if (ccl::BKE_object_is_deform_modified(b_ob_info, b_scene, preview)) {
-#ifdef WITH_NEW_CURVES_TYPE
     if (b_ob_info.object_data.is_a(&RNA_Curves)) {
       /* Hair object. */
       sync_hair(hair, b_ob_info, true, motion_step);
       return;
     }
-    else
-#endif
-    {
+    else {
       /* Particle hair. */
       BL::Mesh b_mesh = object_to_mesh(
           b_data, b_ob_info, b_depsgraph, false, Mesh::SUBDIVISION_NONE);
diff --git a/intern/cycles/blender/geometry.cpp b/intern/cycles/blender/geometry.cpp
index 215860f59e6..fc03ca6e489 100644
--- a/intern/cycles/blender/geometry.cpp
+++ b/intern/cycles/blender/geometry.cpp
@@ -18,11 +18,7 @@ CCL_NAMESPACE_BEGIN
 
 static Geometry::Type determine_geom_type(BObjectInfo &b_ob_info, bool use_particle_hair)
 {
-#ifdef WITH_NEW_CURVES_TYPE
   if (b_ob_info.object_data.is_a(&RNA_Curves) || use_particle_hair) {
-#else
-  if (use_particle_hair) {
-#endif
     return Geometry::HAIR;
   }
 
@@ -217,11 +213,7 @@ void BlenderSync::sync_geometry_motion(BL::Depsgraph &b_depsgraph,
     if (progress.get_cancel())
       return;
 
-#ifdef WITH_NEW_CURVES_TYPE
     if (b_ob_info.object_data.is_a(&RNA_Curves) || use_particle_hair) {
-#else
-    if (use_particle_hair) {
-#endif
       Hair *hair = static_cast<Hair *>(geom);
       sync_hair_motion(b_depsgraph, b_ob_info, hair, motion_step);
     }
diff --git a/intern/cycles/blender/pointcloud.cpp b/intern/cycles/blender/pointcloud.cpp
index 0312ad87a70..b4e90859877 100644
--- a/intern/cycles/blender/pointcloud.cpp
+++ b/intern/cycles/blender/pointcloud.cpp
@@ -1,8 +1,10 @@
 /* SPDX-License-Identifier: Apache-2.0
  * Copyright 2011-2022 Blender Foundation */
 
-#include "scene/pointcloud.h"
+#include <optional>
+
 #include "scene/attribute.h"
+#include "scene/pointcloud.h"
 #include "scene/scene.h"
 
 #include "blender/sync.h"
@@ -138,6 +140,36 @@ static void copy_attributes(PointCloud *pointcloud,
   }
 }
 
+static std::optional<BL::FloatAttribute> find_radius_attribute(BL::PointCloud b_pointcloud)
+{
+  for (BL::Attribute &b_attribute : b_pointcloud.attributes) {
+    if (b_attribute.name() != "radius") {
+      continue;
+    }
+    if (b_attribute.data_type() != BL::Attribute::data_type_FLOAT) {
+      continue;
+    }
+    return BL::FloatAttribute{b_attribute};
+  }
+  return std::nullopt;
+}
+
+static BL::FloatVectorAttribute find_position_attribute(BL::PointCloud b_pointcloud)
+{
+  for (BL::Attribute &b_attribute : b_pointcloud.attributes) {
+    if (b_attribute.name() != "position") {
+      continue;
+    }
+    if (b_attribute.data_type() != BL::Attribute::data_type_FLOAT_VECTOR) {
+      continue;
+    }
+    return BL::FloatVectorAttribute{b_attribute};
+  }
+  /* The position attribute must exist. */
+  assert(false);
+  return BL::FloatVectorAttribute{b_pointcloud.attributes[0]};
+}
+
 static void export_pointcloud(Scene *scene,
                               PointCloud *pointcloud,
                               BL::PointCloud b_pointcloud,
@@ -156,18 +188,18 @@ static void export_pointcloud(Scene *scene,
   const int num_points = b_pointcloud.points.length();
   pointcloud->reserve(num_points);
 
+  BL::FloatVectorAttribute b_attr_position = find_position_attribute(b_pointcloud);
+  std::optional<BL::FloatAttribute> b_attr_radius = find_radius_attribute(b_pointcloud);
+
   /* Export points. */
-  BL::PointCloud::points_iterator b_point_iter;
-  for (b_pointcloud.points.begin(b_point_iter); b_point_iter != b_pointcloud.points.end();
-       ++b_point_iter) {
-    BL::Point b_point = *b_point_iter;
-    const float3 co = get_float3(b_point.co());
-    const float radius = b_point.radius();
+  for (int i = 0; i < num_points; i++) {
+    const float3 co = get_float3(b_attr_position.data[i].vector());
+    const float radius = b_attr_radius ? b_attr_radius->data[i].value() : 0.0f;
     pointcloud->add_point(co, radius);
 
     /* Random number per point. */
     if (attr_random != NULL) {
-      attr_random->add(hash_uint2_to_float(b_point.index(), 0));
+      attr_random->add(hash_uint2_to_float(i, 0));
     }
   }
 
@@ -195,14 +227,15 @@ static void export_pointcloud_motion(PointCloud *pointcloud,
   int num_motion_points = 0;
   const array<float3> &pointcloud_points = pointcloud->get_points();
 
-  BL::PointCloud::points_iterator b_point_iter;
-  for (b_pointcloud.points.begin(b_point_iter); b_point_iter != b_pointcloud.points.end();
-       ++b_point_iter) {
-    BL::Point b_point = *b_point_iter;
+  BL::FloatVectorAttribute b_attr_position = find_position_attribute(b_pointcloud);
+  std::optional<BL::FloatAttribute> b_attr_radius = find_radius_attribute(b_pointcloud);
 
+  for (int i = 0; i < num_points; i++) {
     if (num_motion_points < num_points) {
-      float3 P = get_float3(b_point.co());
-      P.w = b_point.radius();
+      const float3 co = get_float3(b_attr_position.data[i].vector());
+      const float radius = b_attr_radius ? b_attr_radius->data[i].value() : 0.0f;
+      float3 P = co;
+      P.w = radius;
       mP[num_motion_points] = P;
       have_motion = have_motion || (P != pointcloud_points[num_motion_points]);
       num_motion_points++;
diff --git a/intern/cycles/bvh/params.h b/intern/cycles/bvh/params.h
index 41d851ee687..648350d03b0 100644
--- a/intern/cycles/bvh/params.h
+++ b/intern/cycles/bvh/params.h
@@ -129,7 +129,7 @@ class BVHParams {
 
     top_level = false;
     bvh_layout = BVH_LAYOUT_BVH2;
-    use_compact_structure = true;
+    use_compact_structure = false;
     use_unaligned_nodes = false;
 
     num_motion_curve_steps = 0;
diff --git a/intern/cycles/device/cpu/device_impl.cpp b/intern/cycles/device/cpu/device_impl.cpp
index d4f0532aa5e..1e4b9baa0c0 100644
--- a/intern/cycles/device/cpu/device_impl.cpp
+++ b/intern/cycles/device/cpu/device_impl.cpp
@@ -197,7 +197,7 @@ void CPUDevice::const_copy_to(const char *name, void *host, size_t size)
 
     // Update scene handle (since it is different for each device on multi devices)
     KernelData *const data = (KernelData *)host;
-    data->bvh.scene = embree_scene;
+    data->device_bvh = embree_scene;
   }
 #endif
   kernel_const_copy(&kernel_globals, name, host, size);
diff --git a/intern/cycles/device/device.h b/intern/cycles/device/device.h
index 340be85e853..cdb13ca0a97 100644
--- a/intern/cycles/device/device.h
+++ b/intern/cycles/device/device.h
@@ -29,6 +29,7 @@ class DeviceQueue;
 class Progress;
 class CPUKernels;
 class CPUKernelThreadGlobals;
+class Scene;
 
 /* Device Types */
 
@@ -186,6 +187,11 @@ class Device {
     return 0;
   }
 
+  /* Called after kernel texture setup, and prior to integrator state setup. */
+  virtual void optimize_for_scene(Scene * /*scene*/)
+  {
+  }
+
   virtual bool is_resident(device_ptr /*key*/, Device *sub_device)
   {
     /* Memory is always resident if this is not a multi device, regardless of whether the pointer
diff --git a/intern/cycles/device/metal/device_impl.h b/intern/cycles/device/metal/device_impl.h
index 4aea8d697a5..99e60d3a788 100644
--- a/intern/cycles/device/metal/device_impl.h
+++ b/intern/cycles/device/metal/device_impl.h
@@ -75,7 +75,8 @@ class MetalDevice : public Device {
   std::vector<id<MTLTexture>> texture_slot_map;
 
   bool use_metalrt = false;
-  bool use_function_specialisation = false;
+  MetalPipelineType kernel_specialization_level = PSO_GENERIC;
+  std::atomic_bool async_compile_and_load = false;
 
   virtual BVHLayoutMask get_bvh_layout_mask() const override;
 
@@ -91,9 +92,7 @@ class MetalDevice : public Device {
 
   bool use_adaptive_compilation();
 
-  string get_source(const uint kernel_features);
-
-  string compile_kernel(const uint kernel_features, const char *name);
+  void make_source(MetalPipelineType pso_type, const uint kernel_features);
 
   virtual bool load_kernels(const uint kernel_features) override;
 
@@ -111,7 +110,9 @@ class MetalDevice : public Device {
 
   virtual void build_bvh(BVH *bvh, Progress &progress, bool refit) override;
 
-  id<MTLLibrary> compile(string const &source);
+  virtual void optimize_for_scene(Scene *scene) override;
+
+  bool compile_and_load(MetalPipelineType pso_type);
 
   /* ------------------------------------------------------------------ */
   /* low-level memory management */
diff --git a/intern/cycles/device/metal/device_impl.mm b/intern/cycles/device/metal/device_impl.mm
index 87c83242240..d1250b83d22 100644
--- a/intern/cycles/device/metal/device_impl.mm
+++ b/intern/cycles/device/metal/device_impl.mm
@@ -6,6 +6,8 @@
 #  include "device/metal/device_impl.h"
 #  include "device/metal/device.h"
 
+#  include "scene/scene.h"
+
 #  include "util/debug.h"
 #  include "util/md5.h"
 #  include "util/path.h"
@@ -78,6 +80,10 @@ MetalDevice::MetalDevice(const DeviceInfo &info, Stats &stats, Profiler &profile
     case METAL_GPU_APPLE: {
       max_threads_per_threadgroup = 512;
       use_metalrt = info.use_metalrt;
+
+      /* Specialize the intersection kernels on Apple GPUs by default as these can be built very
+       * quickly. */
+      kernel_specialization_level = PSO_SPECIALIZED_INTERSECT;
       break;
     }
   }
@@ -90,6 +96,13 @@ MetalDevice::MetalDevice(const DeviceInfo &info, Stats &stats, Profiler &profile
     capture_enabled = true;
   }
 
+  if (auto envstr = getenv("CYCLES_METAL_SPECIALIZATION_LEVEL")) {
+    kernel_specialization_level = (MetalPipelineType)atoi(envstr);
+  }
+  metal_printf("kernel_specialization_level = %s\n",
+               kernel_type_as_string(
+                   (MetalPipelineType)min((int)kernel_specialization_level, (int)PSO_NUM - 1)));
+
   MTLArgumentDescriptor *arg_desc_params = [[MTLArgumentDescriptor alloc] init];
   arg_desc_params.dataType = MTLDataTypePointer;
   arg_desc_params.access = MTLArgumentAccessReadOnly;
@@ -209,61 +222,86 @@ bool MetalDevice::use_adaptive_compilation()
   return DebugFlags().metal.adaptive_compile;
 }
 
-string MetalDevice::get_source(const uint kernel_features)
+void MetalDevice::make_source(MetalPipelineType pso_type, const uint kernel_features)
 {
-  string build_options;
-
+  string global_defines;
   if (use_adaptive_compilation()) {
-    build_options += " -D__KERNEL_FEATURES__=" + to_string(kernel_features);
+    global_defines += "#define __KERNEL_FEATURES__ " + to_string(kernel_features) + "\n";
   }
 
   if (use_metalrt) {
-    build_options += "-D__METALRT__ ";
+    global_defines += "#define __METALRT__\n";
     if (motion_blur) {
-      build_options += "-D__METALRT_MOTION__ ";
+      global_defines += "#define __METALRT_MOTION__\n";
     }
   }
 
 #  ifdef WITH_CYCLES_DEBUG
-  build_options += "-D__KERNEL_DEBUG__ ";
+  global_defines += "#define __KERNEL_DEBUG__\n";
 #  endif
 
   switch (device_vendor) {
     default:
       break;
     case METAL_GPU_INTEL:
-      build_options += "-D__KERNEL_METAL_INTEL__ ";
+      global_defines += "#define __KERNEL_METAL_INTEL__\n";
       break;
     case METAL_GPU_AMD:
-      build_options += "-D__KERNEL_METAL_AMD__ ";
+      global_defines += "#define __KERNEL_METAL_AMD__\n";
       break;
     case METAL_GPU_APPLE:
-      build_options += "-D__KERNEL_METAL_APPLE__ ";
+      global_defines += "#define __KERNEL_METAL_APPLE__\n";
       break;
   }
 
-  /* reformat -D defines list into compilable form */
-  vector<string> components;
-  string_replace(build_options, "-D", "");
-  string_split(components, build_options, " ");
+  string &source = this->source[pso_type];
+  source = "\n#include \"kernel/device/metal/kernel.metal\"\n";
+  source = path_source_replace_includes(source, path_get("source"));
 
-  string globalDefines;
-  for (const string &component : components) {
-    vector<string> assignments;
-    string_split(assignments, component, "=");
-    if (assignments.size() == 2)
-      globalDefines += string_printf(
-          "#define %s %s\n", assignments[0].c_str(), assignments[1].c_str());
-    else
-      globalDefines += string_printf("#define %s\n", assignments[0].c_str());
+  /* Perform any required specialization on the source.
+   * With Metal function constants we can generate a single variant of the kernel source which can
+   * be repeatedly respecialized.
+   */
+  string baked_constants;
+
+  /* Replace specific KernelData "dot" dereferences with a Metal function_constant identifier of
+   * the same character length. Build a string of all active constant values which is then hashed
+   * in order to identify the PSO.
+   */
+  if (pso_type != PSO_GENERIC) {
+    const double starttime = time_dt();
+
+#  define KERNEL_STRUCT_BEGIN(name, parent) \
+    string_replace_same_length(source, "kernel_data." #parent ".", "kernel_data_" #parent "_");
+
+    /* Add constants to md5 so that 'get_best_pipeline' is able to return a suitable match. */
+#  define KERNEL_STRUCT_MEMBER(parent, _type, name) \
+    baked_constants += string(#parent "." #name "=") + \
+                       to_string(_type(launch_params.data.parent.name)) + "\n";
+
+#  include "kernel/data_template.h"
+
+    /* Opt in to all of available specializations. This can be made more granular for the
+     * PSO_SPECIALIZED_INTERSECT case in order to minimize the number of specialization requests,
+     * but the overhead should be negligible as these are very quick to (re)build and aren't
+     * serialized to disk via MTLBinaryArchives.
+     */
+    global_defines += "#define __KERNEL_USE_DATA_CONSTANTS__\n";
+
+    metal_printf("KernelData patching took %.1f ms\n", (time_dt() - starttime) * 1000.0);
   }
 
-  string source = globalDefines + "\n#include \"kernel/device/metal/kernel.metal\"\n";
-  source = path_source_replace_includes(source, path_get("source"));
-
-  metal_printf("Global defines:\n%s\n", globalDefines.c_str());
+  source = global_defines + source;
+  metal_printf("================\n%s================\n\%s================\n",
+               global_defines.c_str(),
+               baked_constants.c_str());
 
-  return source;
+  /* Generate an MD5 from the source and include any baked constants. This is used when caching
+   * PSOs. */
+  MD5Hash md5;
+  md5.append(baked_constants);
+  md5.append(source);
+  source_md5[pso_type] = md5.get_hex();
 }
 
 bool MetalDevice::load_kernels(const uint _kernel_features)
@@ -279,28 +317,22 @@ bool MetalDevice::load_kernels(const uint _kernel_features)
    * active, but may still need to be rendered without motion blur if that isn't active as well. */
   motion_blur = kernel_features & KERNEL_FEATURE_OBJECT_MOTION;
 
-  source[PSO_GENERIC] = get_source(kernel_features);
-
-  const double starttime = time_dt();
-
-  mtlLibrary[PSO_GENERIC] = compile(source[PSO_GENERIC]);
-
-  metal_printf("Front-end compilation finished in %.1f seconds (generic)\n",
-               time_dt() - starttime);
-
-  MD5Hash md5;
-  md5.append(source[PSO_GENERIC]);
-  source_md5[PSO_GENERIC] = md5.get_hex();
-
-  bool result = MetalDeviceKernels::load(this, false);
+  bool result = compile_and_load(PSO_GENERIC);
 
   reserve_local_memory(kernel_features);
-
   return result;
 }
 
-id<MTLLibrary> MetalDevice::compile(string const &source)
+bool MetalDevice::compile_and_load(MetalPipelineType pso_type)
 {
+  make_source(pso_type, kernel_features);
+
+  if (!MetalDeviceKernels::should_load_kernels(this, pso_type)) {
+    /* We already have a full set of matching pipelines which are cached or queued. */
+    metal_printf("%s kernels already requested\n", kernel_type_as_string(pso_type));
+    return true;
+  }
+
   MTLCompileOptions *options = [[MTLCompileOptions alloc] init];
 
   options.fastMathEnabled = YES;
@@ -308,19 +340,30 @@ id<MTLLibrary> MetalDevice::compile(string const &source)
     options.languageVersion = MTLLanguageVersion2_4;
   }
 
+  if (getenv("CYCLES_METAL_PROFILING") || getenv("CYCLES_METAL_DEBUG")) {
+    path_write_text(path_cache_get(string_printf("%s.metal", kernel_type_as_string(pso_type))),
+                    source[pso_type]);
+  }
+
+  const double starttime = time_dt();
+
   NSError *error = NULL;
-  id<MTLLibrary> mtlLibrary = [mtlDevice newLibraryWithSource:@(source.c_str())
-                                                      options:options
-                                                        error:&error];
+  mtlLibrary[pso_type] = [mtlDevice newLibraryWithSource:@(source[pso_type].c_str())
+                                                 options:options
+                                                   error:&error];
 
-  if (!mtlLibrary) {
+  if (!mtlLibrary[pso_type]) {
     NSString *err = [error localizedDescription];
     set_error(string_printf("Failed to compile library:\n%s", [err UTF8String]));
   }
 
+  metal_printf("Front-end compilation finished in %.1f seconds (%s)\n",
+               time_dt() - starttime,
+               kernel_type_as_string(pso_type));
+
   [options release];
 
-  return mtlLibrary;
+  return MetalDeviceKernels::load(this, pso_type);
 }
 
 void MetalDevice::reserve_local_memory(const uint kernel_features)
@@ -627,6 +670,58 @@ device_ptr MetalDevice::mem_alloc_sub_ptr(device_memory &mem, size_t offset, siz
   return 0;
 }
 
+void MetalDevice::optimize_for_scene(Scene *scene)
+{
+  MetalPipelineType specialization_level = kernel_specialization_level;
+
+  if (specialization_level < PSO_SPECIALIZED_INTERSECT) {
+    return;
+  }
+
+  /* PSO_SPECIALIZED_INTERSECT kernels are fast to specialize, so we always load them
+   * synchronously. */
+  compile_and_load(PSO_SPECIALIZED_INTERSECT);
+
+  if (specialization_level < PSO_SPECIALIZED_SHADE) {
+    return;
+  }
+  if (!scene->params.background) {
+    /* Don't load PSO_SPECIALIZED_SHADE kernels during viewport rendering as they are slower to
+     * build. */
+    return;
+  }
+
+  /* PSO_SPECIALIZED_SHADE kernels are slower to specialize, so we load them asynchronously, and
+   * only if there isn't an existing load in flight.
+   */
+  auto specialize_shade_fn = ^() {
+    compile_and_load(PSO_SPECIALIZED_SHADE);
+    async_compile_and_load = false;
+  };
+
+  bool async_specialize_shade = true;
+
+  /* Block if a per-kernel profiling is enabled (ensure steady rendering rate). */
+  if (getenv("CYCLES_METAL_PROFILING") != nullptr) {
+    async_specialize_shade = false;
+  }
+
+  if (async_specialize_shade) {
+    if (!async_compile_and_load) {
+      async_compile_and_load = true;
+      dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0),
+                     specialize_shade_fn);
+    }
+    else {
+      metal_printf(
+          "Async PSO_SPECIALIZED_SHADE load request already in progress - dropping request\n");
+    }
+  }
+  else {
+    specialize_shade_fn();
+  }
+}
+
 void MetalDevice::const_copy_to(const char *name, void *host, size_t size)
 {
   if (strcmp(name, "data") == 0) {
@@ -652,7 +747,7 @@ void MetalDevice::const_copy_to(const char *name, void *host, size_t size)
   /* Update data storage pointers in launch parameters. */
   if (strcmp(name, "integrator_state") == 0) {
     /* IntegratorStateGPU is contiguous pointers */
-    const size_t pointer_block_size = sizeof(IntegratorStateGPU);
+    const size_t pointer_block_size = offsetof(IntegratorStateGPU, sort_partition_divisor);
     update_launch_pointers(
         offsetof(KernelParamsMetal, integrator_state), host, size, pointer_block_size);
   }
diff --git a/intern/cycles/device/metal/kernel.h b/intern/cycles/device/metal/kernel.h
index 69b2a686ecc..11393f8b7e1 100644
--- a/intern/cycles/device/metal/kernel.h
+++ b/intern/cycles/device/metal/kernel.h
@@ -31,7 +31,7 @@ enum {
 enum { METALRT_TABLE_DEFAULT, METALRT_TABLE_SHADOW, METALRT_TABLE_LOCAL, METALRT_TABLE_NUM };
 
 /* Pipeline State Object types */
-enum {
+enum MetalPipelineType {
   /* A kernel that can be used with all scenes, supporting all features.
    * It is slow to compile, but only needs to be compiled once and is then
    * cached for future render sessions. This allows a render to get underway
@@ -39,28 +39,33 @@ enum {
    */
   PSO_GENERIC,
 
-  /* A kernel that is relatively quick to compile, but is specialized for the
-   * scene being rendered. It only contains the functionality and even baked in
-   * constants for values that means it needs to be recompiled whenever a
-   * dependent setting is changed. The render performance of this kernel is
-   * significantly faster though, and justifies the extra compile time.
+  /* A intersection kernel that is very quick to specialize and results in faster intersection
+   * kernel performance. It uses Metal function constants to replace several KernelData variables
+   * with fixed constants.
+   */
+  PSO_SPECIALIZED_INTERSECT,
+
+  /* A shading kernel that is slow to specialize, but results in faster shading kernel performance
+   * rendered. It uses Metal function constants to replace several KernelData variables with fixed
+   * constants and short-circuit all unused SVM node case handlers.
    */
-  /* METAL_WIP: This isn't used and will require more changes to enable. */
-  PSO_SPECIALISED,
+  PSO_SPECIALIZED_SHADE,
 
   PSO_NUM
 };
 
-const char *kernel_type_as_string(int kernel_type);
+const char *kernel_type_as_string(MetalPipelineType pso_type);
 
 struct MetalKernelPipeline {
 
   void compile();
 
   id<MTLLibrary> mtlLibrary = nil;
-  bool scene_specialized;
+  MetalPipelineType pso_type;
   string source_md5;
+  size_t usage_count = 0;
 
+  KernelData kernel_data_;
   bool use_metalrt;
   bool metalrt_hair;
   bool metalrt_hair_thick;
@@ -75,6 +80,8 @@ struct MetalKernelPipeline {
   id<MTLComputePipelineState> pipeline = nil;
   int num_threads_per_block = 0;
 
+  bool should_use_binary_archive() const;
+
   string error_str;
 
   API_AVAILABLE(macos(11.0))
@@ -85,7 +92,8 @@ struct MetalKernelPipeline {
 /* Cache of Metal kernels for each DeviceKernel. */
 namespace MetalDeviceKernels {
 
-bool load(MetalDevice *device, bool scene_specialized);
+bool should_load_kernels(MetalDevice *device, MetalPipelineType pso_type);
+bool load(MetalDevice *device, MetalPipelineType pso_type);
 const MetalKernelPipeline *get_best_pipeline(const MetalDevice *device, DeviceKernel kernel);
 
 } /* namespace MetalDeviceKernels */
diff --git a/intern/cycles/device/metal/kernel.mm b/intern/cycles/device/metal/kernel.mm
index fec4cd80466..385cb412b06 100644
--- a/intern/cycles/device/metal/kernel.mm
+++ b/intern/cycles/device/metal/kernel.mm
@@ -5,6 +5,7 @@
 
 #  include "device/metal/kernel.h"
 #  include "device/metal/device_impl.h"
+#  include "kernel/device/metal/function_constants.h"
 #  include "util/md5.h"
 #  include "util/path.h"
 #  include "util/tbb.h"
@@ -16,13 +17,15 @@ CCL_NAMESPACE_BEGIN
 /* limit to 2 MTLCompiler instances */
 int max_mtlcompiler_threads = 2;
 
-const char *kernel_type_as_string(int kernel_type)
+const char *kernel_type_as_string(MetalPipelineType pso_type)
 {
-  switch (kernel_type) {
+  switch (pso_type) {
     case PSO_GENERIC:
       return "PSO_GENERIC";
-    case PSO_SPECIALISED:
-      return "PSO_SPECIALISED";
+    case PSO_SPECIALIZED_INTERSECT:
+      return "PSO_SPECIALIZED_INTERSECT";
+    case PSO_SPECIALIZED_SHADE:
+      return "PSO_SPECIALIZED_SHADE";
     default:
       assert(0);
   }
@@ -50,7 +53,11 @@ struct ShaderCache {
 
   /* Non-blocking request for a kernel, optionally specialized to the scene being rendered by
    * device. */
-  void load_kernel(DeviceKernel kernel, MetalDevice *device, bool scene_specialized);
+  void load_kernel(DeviceKernel kernel, MetalDevice *device, MetalPipelineType pso_type);
+
+  bool should_load_kernel(DeviceKernel device_kernel,
+                          MetalDevice *device,
+                          MetalPipelineType pso_type);
 
   void wait_for_all();
 
@@ -139,31 +146,34 @@ void ShaderCache::compile_thread_func(int thread_index)
   }
 }
 
-void ShaderCache::load_kernel(DeviceKernel device_kernel,
-                              MetalDevice *device,
-                              bool scene_specialized)
+bool ShaderCache::should_load_kernel(DeviceKernel device_kernel,
+                                     MetalDevice *device,
+                                     MetalPipelineType pso_type)
 {
-  {
-    /* create compiler threads on first run */
-    thread_scoped_lock lock(cache_mutex);
-    if (compile_threads.empty()) {
-      running = true;
-      for (int i = 0; i < max_mtlcompiler_threads; i++) {
-        compile_threads.push_back(std::thread([&] { compile_thread_func(i); }));
-      }
-    }
+  if (device_kernel == DEVICE_KERNEL_INTEGRATOR_MEGAKERNEL) {
+    /* Skip megakernel. */
+    return false;
   }
 
-  if (device_kernel == DEVICE_KERNEL_INTEGRATOR_MEGAKERNEL) {
-    /* skip megakernel */
-    return;
+  if (device_kernel == DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE) {
+    if ((device->kernel_features & KERNEL_FEATURE_NODE_RAYTRACE) == 0) {
+      /* Skip shade_surface_raytrace kernel if the scene doesn't require it. */
+      return false;
+    }
   }
 
-  if (scene_specialized) {
+  if (pso_type != PSO_GENERIC) {
     /* Only specialize kernels where it can make an impact. */
     if (device_kernel < DEVICE_KERNEL_INTEGRATOR_INTERSECT_CLOSEST ||
         device_kernel > DEVICE_KERNEL_INTEGRATOR_MEGAKERNEL) {
-      return;
+      return false;
+    }
+
+    /* Only specialize shading / intersection kernels as requested. */
+    bool is_shade_kernel = (device_kernel >= DEVICE_KERNEL_INTEGRATOR_SHADE_BACKGROUND);
+    bool is_shade_pso = (pso_type == PSO_SPECIALIZED_SHADE);
+    if (is_shade_pso != is_shade_kernel) {
+      return false;
     }
   }
 
@@ -171,35 +181,45 @@ void ShaderCache::load_kernel(DeviceKernel device_kernel,
     /* check whether the kernel has already been requested / cached */
     thread_scoped_lock lock(cache_mutex);
     for (auto &pipeline : pipelines[device_kernel]) {
-      if (scene_specialized) {
-        if (pipeline->source_md5 == device->source_md5[PSO_SPECIALISED]) {
-          /* we already requested a pipeline that is specialized for this kernel data */
-          metal_printf("Specialized kernel already requested (%s)\n",
-                       device_kernel_as_string(device_kernel));
-          return;
-        }
+      if (pipeline->source_md5 == device->source_md5[pso_type]) {
+        return false;
       }
-      else {
-        if (pipeline->source_md5 == device->source_md5[PSO_GENERIC]) {
-          /* we already requested a generic pipeline for this kernel */
-          metal_printf("Generic kernel already requested (%s)\n",
-                       device_kernel_as_string(device_kernel));
-          return;
-        }
+    }
+  }
+
+  return true;
+}
+
+void ShaderCache::load_kernel(DeviceKernel device_kernel,
+                              MetalDevice *device,
+                              MetalPipelineType pso_type)
+{
+  {
+    /* create compiler threads on first run */
+    thread_scoped_lock lock(cache_mutex);
+    if (compile_threads.empty()) {
+      running = true;
+      for (int i = 0; i < max_mtlcompiler_threads; i++) {
+        compile_threads.push_back(std::thread([&] { compile_thread_func(i); }));
       }
     }
   }
 
+  if (!should_load_kernel(device_kernel, device, pso_type)) {
+    return;
+  }
+
   incomplete_requests++;
 
   PipelineRequest request;
   request.pipeline = new MetalKernelPipeline;
-  request.pipeline->scene_specialized = scene_specialized;
+  memcpy(&request.pipeline->kernel_data_,
+         &device->launch_params.data,
+         sizeof(request.pipeline->kernel_data_));
+  request.pipeline->pso_type = pso_type;
   request.pipeline->mtlDevice = mtlDevice;
-  request.pipeline->source_md5 =
-      device->source_md5[scene_specialized ? PSO_SPECIALISED : PSO_GENERIC];
-  request.pipeline->mtlLibrary =
-      device->mtlLibrary[scene_specialized ? PSO_SPECIALISED : PSO_GENERIC];
+  request.pipeline->source_md5 = device->source_md5[pso_type];
+  request.pipeline->mtlLibrary = device->mtlLibrary[pso_type];
   request.pipeline->device_kernel = device_kernel;
   request.pipeline->threads_per_threadgroup = device->max_threads_per_threadgroup;
 
@@ -214,7 +234,24 @@ void ShaderCache::load_kernel(DeviceKernel device_kernel,
 
   {
     thread_scoped_lock lock(cache_mutex);
-    pipelines[device_kernel].push_back(unique_ptr<MetalKernelPipeline>(request.pipeline));
+    auto &collection = pipelines[device_kernel];
+
+    /* Cache up to 3 kernel variants with the same pso_type, purging oldest first. */
+    int max_entries_of_same_pso_type = 3;
+    for (int i = (int)collection.size() - 1; i >= 0; i--) {
+      if (collection[i]->pso_type == pso_type) {
+        max_entries_of_same_pso_type -= 1;
+        if (max_entries_of_same_pso_type == 0) {
+          metal_printf("Purging oldest %s:%s kernel from ShaderCache\n",
+                       kernel_type_as_string(pso_type),
+                       device_kernel_as_string(device_kernel));
+          collection.erase(collection.begin() + i);
+          break;
+        }
+      }
+    }
+
+    collection.push_back(unique_ptr<MetalKernelPipeline>(request.pipeline));
     request_queue.push_back(request);
   }
   cond_var.notify_one();
@@ -248,8 +285,9 @@ MetalKernelPipeline *ShaderCache::get_best_pipeline(DeviceKernel kernel, const M
       continue;
     }
 
-    if (pipeline->scene_specialized) {
-      if (pipeline->source_md5 == device->source_md5[PSO_SPECIALISED]) {
+    if (pipeline->pso_type != PSO_GENERIC) {
+      if (pipeline->source_md5 == device->source_md5[PSO_SPECIALIZED_INTERSECT] ||
+          pipeline->source_md5 == device->source_md5[PSO_SPECIALIZED_SHADE]) {
         best_pipeline = pipeline.get();
       }
     }
@@ -258,13 +296,65 @@ MetalKernelPipeline *ShaderCache::get_best_pipeline(DeviceKernel kernel, const M
     }
   }
 
+  if (best_pipeline->usage_count == 0 && best_pipeline->pso_type != PSO_GENERIC) {
+    metal_printf("Swapping in %s version of %s\n",
+                 kernel_type_as_string(best_pipeline->pso_type),
+                 device_kernel_as_string(kernel));
+  }
+  best_pipeline->usage_count += 1;
+
   return best_pipeline;
 }
 
-void MetalKernelPipeline::compile()
+bool MetalKernelPipeline::should_use_binary_archive() const
 {
-  int pso_type = scene_specialized ? PSO_SPECIALISED : PSO_GENERIC;
+  if (auto str = getenv("CYCLES_METAL_DISABLE_BINARY_ARCHIVES")) {
+    if (atoi(str) != 0) {
+      /* Don't archive if we have opted out by env var. */
+      return false;
+    }
+  }
+
+  if (pso_type == PSO_GENERIC) {
+    /* Archive the generic kernels. */
+    return true;
+  }
+
+  if (device_kernel >= DEVICE_KERNEL_INTEGRATOR_SHADE_BACKGROUND &&
+      device_kernel <= DEVICE_KERNEL_INTEGRATOR_SHADE_SHADOW) {
+    /* Archive all shade kernels - they take a long time to compile. */
+    return true;
+  }
+
+  /* The remaining kernels are all fast to compile. They may get cached by the system shader cache,
+   * but will be quick to regenerate if not. */
+  return false;
+}
+
+static MTLFunctionConstantValues *GetConstantValues(KernelData const *data = nullptr)
+{
+  MTLFunctionConstantValues *constant_values = [MTLFunctionConstantValues new];
+
+  MTLDataType MTLDataType_int = MTLDataTypeInt;
+  MTLDataType MTLDataType_float = MTLDataTypeFloat;
+  MTLDataType MTLDataType_float4 = MTLDataTypeFloat4;
+  KernelData zero_data = {0};
+  if (!data) {
+    data = &zero_data;
+  }
 
+#  define KERNEL_STRUCT_MEMBER(parent, _type, name) \
+    [constant_values setConstantValue:&data->parent.name \
+                                 type:MTLDataType_##_type \
+                              atIndex:KernelData_##parent##_##name];
+
+#  include "kernel/data_template.h"
+
+  return constant_values;
+}
+
+void MetalKernelPipeline::compile()
+{
   const std::string function_name = std::string("cycles_metal_") +
                                     device_kernel_as_string(device_kernel);
 
@@ -281,6 +371,17 @@ void MetalKernelPipeline::compile()
   if (@available(macOS 11.0, *)) {
     MTLFunctionDescriptor *func_desc = [MTLIntersectionFunctionDescriptor functionDescriptor];
     func_desc.name = entryPoint;
+
+    if (pso_type == PSO_SPECIALIZED_SHADE) {
+      func_desc.constantValues = GetConstantValues(&kernel_data_);
+    }
+    else if (pso_type == PSO_SPECIALIZED_INTERSECT) {
+      func_desc.constantValues = GetConstantValues(&kernel_data_);
+    }
+    else {
+      func_desc.constantValues = GetConstantValues();
+    }
+
     function = [mtlLibrary newFunctionWithDescriptor:func_desc error:&error];
   }
 
@@ -427,10 +528,7 @@ void MetalKernelPipeline::compile()
 
   MTLPipelineOption pipelineOptions = MTLPipelineOptionNone;
 
-  bool use_binary_archive = true;
-  if (auto str = getenv("CYCLES_METAL_DISABLE_BINARY_ARCHIVES")) {
-    use_binary_archive = (atoi(str) == 0);
-  }
+  bool use_binary_archive = should_use_binary_archive();
 
   id<MTLBinaryArchive> archive = nil;
   string metalbin_path;
@@ -608,19 +706,32 @@ void MetalKernelPipeline::compile()
   }
 }
 
-bool MetalDeviceKernels::load(MetalDevice *device, bool scene_specialized)
+bool MetalDeviceKernels::load(MetalDevice *device, MetalPipelineType pso_type)
 {
+  const double starttime = time_dt();
   auto shader_cache = get_shader_cache(device->mtlDevice);
   for (int i = 0; i < DEVICE_KERNEL_NUM; i++) {
-    shader_cache->load_kernel((DeviceKernel)i, device, scene_specialized);
+    shader_cache->load_kernel((DeviceKernel)i, device, pso_type);
   }
 
-  if (!scene_specialized || getenv("CYCLES_METAL_PROFILING")) {
-    shader_cache->wait_for_all();
-  }
+  shader_cache->wait_for_all();
+  metal_printf("Back-end compilation finished in %.1f seconds (%s)\n",
+               time_dt() - starttime,
+               kernel_type_as_string(pso_type));
   return true;
 }
 
+bool MetalDeviceKernels::should_load_kernels(MetalDevice *device, MetalPipelineType pso_type)
+{
+  auto shader_cache = get_shader_cache(device->mtlDevice);
+  for (int i = 0; i < DEVICE_KERNEL_NUM; i++) {
+    if (shader_cache->should_load_kernel((DeviceKernel)i, device, pso_type)) {
+      return true;
+    }
+  }
+  return false;
+}
+
 const MetalKernelPipeline *MetalDeviceKernels::get_best_pipeline(const MetalDevice *device,
                                                                  DeviceKernel kernel)
 {
diff --git a/intern/cycles/device/metal/queue.h b/intern/cycles/device/metal/queue.h
index b0bd487c86d..fc32740f3e1 100644
--- a/intern/cycles/device/metal/queue.h
+++ b/intern/cycles/device/metal/queue.h
@@ -24,6 +24,7 @@ class MetalDeviceQueue : public DeviceQueue {
 
   virtual int num_concurrent_states(const size_t) const override;
   virtual int num_concurrent_busy_states() const override;
+  virtual int num_sort_partition_elements() const override;
 
   virtual void init_execution() override;
 
diff --git a/intern/cycles/device/metal/queue.mm b/intern/cycles/device/metal/queue.mm
index 03e60b6bb6e..5ac63a16c61 100644
--- a/intern/cycles/device/metal/queue.mm
+++ b/intern/cycles/device/metal/queue.mm
@@ -293,6 +293,11 @@ int MetalDeviceQueue::num_concurrent_busy_states() const
   return result;
 }
 
+int MetalDeviceQueue::num_sort_partition_elements() const
+{
+  return MetalInfo::optimal_sort_partition_elements(metal_device_->mtlDevice);
+}
+
 void MetalDeviceQueue::init_execution()
 {
   /* Synchronize all textures and memory copies before executing task. */
@@ -359,7 +364,7 @@ bool MetalDeviceQueue::enqueue(DeviceKernel kernel,
   /* Prepare any non-pointer (i.e. plain-old-data) KernelParamsMetal data */
   /* The plain-old-data is contiguous, continuing to the end of KernelParamsMetal */
   size_t plain_old_launch_data_offset = offsetof(KernelParamsMetal, integrator_state) +
-                                        sizeof(IntegratorStateGPU);
+                                        offsetof(IntegratorStateGPU, sort_partition_divisor);
   size_t plain_old_launch_data_size = sizeof(KernelParamsMetal) - plain_old_launch_data_offset;
   memcpy(init_arg_buffer + globals_offsets + plain_old_launch_data_offset,
          (uint8_t *)&metal_device_->launch_params + plain_old_launch_data_offset,
@@ -416,7 +421,7 @@ bool MetalDeviceQueue::enqueue(DeviceKernel kernel,
 
   /* this relies on IntegratorStateGPU layout being contiguous device_ptrs  */
   const size_t pointer_block_end = offsetof(KernelParamsMetal, integrator_state) +
-                                   sizeof(IntegratorStateGPU);
+                                   offsetof(IntegratorStateGPU, sort_partition_divisor);
   for (size_t offset = 0; offset < pointer_block_end; offset += sizeof(device_ptr)) {
     int pointer_index = int(offset / sizeof(device_ptr));
     MetalDevice::MetalMem *mmem = *(
diff --git a/intern/cycles/device/metal/util.h b/intern/cycles/device/metal/util.h
index fd32d8a260f..a988d01d361 100644
--- a/intern/cycles/device/metal/util.h
+++ b/intern/cycles/device/metal/util.h
@@ -37,6 +37,7 @@ struct MetalInfo {
   static int get_apple_gpu_core_count(id<MTLDevice> device);
   static MetalGPUVendor get_device_vendor(id<MTLDevice> device);
   static AppleGPUArchitecture get_apple_gpu_architecture(id<MTLDevice> device);
+  static int optimal_sort_partition_elements(id<MTLDevice> device);
   static string get_device_name(id<MTLDevice> device);
 };
 
diff --git a/intern/cycles/device/metal/util.mm b/intern/cycles/device/metal/util.mm
index a7a5b596b8f..65c67c400fe 100644
--- a/intern/cycles/device/metal/util.mm
+++ b/intern/cycles/device/metal/util.mm
@@ -72,6 +72,21 @@ MetalGPUVendor MetalInfo::get_device_vendor(id<MTLDevice> device)
   return METAL_GPU_UNKNOWN;
 }
 
+int MetalInfo::optimal_sort_partition_elements(id<MTLDevice> device)
+{
+  if (auto str = getenv("CYCLES_METAL_SORT_PARTITION_ELEMENTS")) {
+    return atoi(str);
+  }
+
+  /* On M1 and M2 GPUs, we see better cache utilization if we partition the active indices before
+   * sorting each partition by material. Partitioning into chunks of 65536 elements results in an
+   * overall render time speedup of up to 15%. */
+  if (get_device_vendor(device) == METAL_GPU_APPLE) {
+    return 65536;
+  }
+  return 0;
+}
+
 vector<id<MTLDevice>> const &MetalInfo::get_usable_devices()
 {
   static vector<id<MTLDevice>> usable_devices;
diff --git a/intern/cycles/device/optix/device_impl.cpp b/intern/cycles/device/optix/device_impl.cpp
index e7dcc29a2da..11c0d1bf8a0 100644
--- a/intern/cycles/device/optix/device_impl.cpp
+++ b/intern/cycles/device/optix/device_impl.cpp
@@ -2047,7 +2047,7 @@ void OptiXDevice::const_copy_to(const char *name, void *host, size_t size)
 
     /* Update traversable handle (since it is different for each device on multi devices). */
     KernelData *const data = (KernelData *)host;
-    *(OptixTraversableHandle *)&data->bvh.scene = tlas_handle;
+    *(OptixTraversableHandle *)&data->device_bvh = tlas_handle;
 
     update_launch_params(offsetof(KernelParamsOptiX, data), host, size);
     return;
diff --git a/intern/cycles/device/queue.h b/intern/cycles/device/queue.h
index 14a5db3a204..808431af401 100644
--- a/intern/cycles/device/queue.h
+++ b/intern/cycles/device/queue.h
@@ -105,6 +105,13 @@ class DeviceQueue {
    * value. */
   virtual int num_concurrent_busy_states() const = 0;
 
+  /* Number of elements in a partition of sorted shaders, that improves memory locality of
+   * integrator state fetch at the cost of decreased coherence for shader kernel execution. */
+  virtual int num_sort_partition_elements() const
+  {
+    return 65536;
+  }
+
   /* Initialize execution of kernels on this queue.
    *
    * Will, for example, load all data required by the kernels from Device to global or path state.
diff --git a/intern/cycles/integrator/path_trace.cpp b/intern/cycles/integrator/path_trace.cpp
index 6912bf928cd..ed278821b46 100644
--- a/intern/cycles/integrator/path_trace.cpp
+++ b/intern/cycles/integrator/path_trace.cpp
@@ -373,7 +373,7 @@ void PathTrace::path_trace(RenderWork &render_work)
     work_balance_infos_[i].time_spent += work_time;
     work_balance_infos_[i].occupancy = statistics.occupancy;
 
-    VLOG_WORK << "Rendered " << num_samples << " samples in " << work_time << " seconds ("
+    VLOG_INFO << "Rendered " << num_samples << " samples in " << work_time << " seconds ("
               << work_time / num_samples
               << " seconds per sample), occupancy: " << statistics.occupancy;
   });
diff --git a/intern/cycles/integrator/path_trace_work_gpu.cpp b/intern/cycles/integrator/path_trace_work_gpu.cpp
index e262c252ce3..fa313f6460a 100644
--- a/intern/cycles/integrator/path_trace_work_gpu.cpp
+++ b/intern/cycles/integrator/path_trace_work_gpu.cpp
@@ -181,27 +181,45 @@ void PathTraceWorkGPU::alloc_integrator_queue()
 
 void PathTraceWorkGPU::alloc_integrator_sorting()
 {
+  /* Compute sort partitions, to balance between memory locality and coherence.
+   * Sort partitioning becomes less effective when more shaders are in the wavefront. In lieu of a
+   * more sophisticated heuristic we simply disable sort partitioning if the shader count is high.
+   */
+  num_sort_partitions_ = 1;
+  if (device_scene_->data.max_shaders < 300) {
+    const int num_elements = queue_->num_sort_partition_elements();
+    if (num_elements) {
+      num_sort_partitions_ = max(max_num_paths_ / num_elements, 1);
+    }
+  }
+
+  integrator_state_gpu_.sort_partition_divisor = (int)divide_up(max_num_paths_,
+                                                                num_sort_partitions_);
+
   /* Allocate arrays for shader sorting. */
-  const int max_shaders = device_scene_->data.max_shaders;
-  if (integrator_shader_sort_counter_.size() < max_shaders) {
-    integrator_shader_sort_counter_.alloc(max_shaders);
+  const int sort_buckets = device_scene_->data.max_shaders * num_sort_partitions_;
+  if (integrator_shader_sort_counter_.size() < sort_buckets) {
+    integrator_shader_sort_counter_.alloc(sort_buckets);
     integrator_shader_sort_counter_.zero_to_device();
+    integrator_state_gpu_.sort_key_counter[DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE] =
+        (int *)integrator_shader_sort_counter_.device_pointer;
 
-    integrator_shader_raytrace_sort_counter_.alloc(max_shaders);
-    integrator_shader_raytrace_sort_counter_.zero_to_device();
+    if (device_scene_->data.kernel_features & KERNEL_FEATURE_NODE_RAYTRACE) {
+      integrator_shader_raytrace_sort_counter_.alloc(sort_buckets);
+      integrator_shader_raytrace_sort_counter_.zero_to_device();
+      integrator_state_gpu_.sort_key_counter[DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE] =
+          (int *)integrator_shader_raytrace_sort_counter_.device_pointer;
+    }
 
-    integrator_shader_mnee_sort_counter_.alloc(max_shaders);
-    integrator_shader_mnee_sort_counter_.zero_to_device();
+    if (device_scene_->data.kernel_features & KERNEL_FEATURE_MNEE) {
+      integrator_shader_mnee_sort_counter_.alloc(sort_buckets);
+      integrator_shader_mnee_sort_counter_.zero_to_device();
+      integrator_state_gpu_.sort_key_counter[DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_MNEE] =
+          (int *)integrator_shader_mnee_sort_counter_.device_pointer;
+    }
 
-    integrator_shader_sort_prefix_sum_.alloc(max_shaders);
+    integrator_shader_sort_prefix_sum_.alloc(sort_buckets);
     integrator_shader_sort_prefix_sum_.zero_to_device();
-
-    integrator_state_gpu_.sort_key_counter[DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE] =
-        (int *)integrator_shader_sort_counter_.device_pointer;
-    integrator_state_gpu_.sort_key_counter[DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE] =
-        (int *)integrator_shader_raytrace_sort_counter_.device_pointer;
-    integrator_state_gpu_.sort_key_counter[DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_MNEE] =
-        (int *)integrator_shader_mnee_sort_counter_.device_pointer;
   }
 }
 
@@ -333,8 +351,12 @@ void PathTraceWorkGPU::enqueue_reset()
   queue_->enqueue(DEVICE_KERNEL_INTEGRATOR_RESET, max_num_paths_, args);
   queue_->zero_to_device(integrator_queue_counter_);
   queue_->zero_to_device(integrator_shader_sort_counter_);
-  queue_->zero_to_device(integrator_shader_raytrace_sort_counter_);
-  queue_->zero_to_device(integrator_shader_mnee_sort_counter_);
+  if (device_scene_->data.kernel_features & KERNEL_FEATURE_NODE_RAYTRACE) {
+    queue_->zero_to_device(integrator_shader_raytrace_sort_counter_);
+  }
+  if (device_scene_->data.kernel_features & KERNEL_FEATURE_MNEE) {
+    queue_->zero_to_device(integrator_shader_mnee_sort_counter_);
+  }
 
   /* Tiles enqueue need to know number of active paths, which is based on this counter. Zero the
    * counter on the host side because `zero_to_device()` is not doing it. */
@@ -486,9 +508,9 @@ void PathTraceWorkGPU::compute_sorted_queued_paths(DeviceKernel kernel,
   /* Compute prefix sum of number of active paths with each shader. */
   {
     const int work_size = 1;
-    int max_shaders = device_scene_->data.max_shaders;
+    int sort_buckets = device_scene_->data.max_shaders * num_sort_partitions_;
 
-    DeviceKernelArguments args(&d_counter, &d_prefix_sum, &max_shaders);
+    DeviceKernelArguments args(&d_counter, &d_prefix_sum, &sort_buckets);
 
     queue_->enqueue(DEVICE_KERNEL_PREFIX_SUM, work_size, args);
   }
diff --git a/intern/cycles/integrator/path_trace_work_gpu.h b/intern/cycles/integrator/path_trace_work_gpu.h
index 4c10a221a30..a805258d1b5 100644
--- a/intern/cycles/integrator/path_trace_work_gpu.h
+++ b/intern/cycles/integrator/path_trace_work_gpu.h
@@ -156,6 +156,9 @@ class PathTraceWorkGPU : public PathTraceWork {
   bool interop_use_checked_ = false;
   bool interop_use_ = false;
 
+  /* Number of partitions to sort state indices into prior to material sort. */
+  int num_sort_partitions_;
+
   /* Maximum number of concurrent integrator states. */
   int max_num_paths_;
 
diff --git a/intern/cycles/kernel/CMakeLists.txt b/intern/cycles/kernel/CMakeLists.txt
index b893ff6ef24..21a78722c0d 100644
--- a/intern/cycles/kernel/CMakeLists.txt
+++ b/intern/cycles/kernel/CMakeLists.txt
@@ -79,6 +79,7 @@ set(SRC_KERNEL_DEVICE_METAL_HEADERS
   device/metal/compat.h
   device/metal/context_begin.h
   device/metal/context_end.h
+  device/metal/function_constants.h
   device/metal/globals.h
 )
 
@@ -154,6 +155,7 @@ set(SRC_KERNEL_SVM_HEADERS
   svm/math_util.h
   svm/mix.h
   svm/musgrave.h
+  svm/node_types_template.h
   svm/noise.h
   svm/noisetex.h
   svm/normal.h
@@ -282,6 +284,7 @@ set(SRC_KERNEL_UTIL_HEADERS
 
 set(SRC_KERNEL_TYPES_HEADERS
   data_arrays.h
+  data_template.h
   tables.h
   types.h
 )
@@ -844,10 +847,9 @@ if(WITH_CYCLES_DEVICE_ONEAPI)
   else()
     list(APPEND sycl_compiler_flags -fPIC)
 
-    # avoid getting __FAST_MATH__ to be defined for the graphics compiler on CentOS 7 until the compile-time issue it triggers gets fixed.
-    if(WITH_CYCLES_ONEAPI_BINARIES)
-      list(APPEND sycl_compiler_flags -fhonor-nans)
-    endif()
+    # We avoid getting __FAST_MATH__ to be defined when building on CentOS 7 until the compilation crash
+    # it triggers at either AoT or JIT stages gets fixed.
+    list(APPEND sycl_compiler_flags -fhonor-nans)
 
     # add $ORIGIN to cycles_kernel_oneapi.so rpath so libsycl.so and
     # libpi_level_zero.so can be placed next to it and get found.
diff --git a/intern/cycles/kernel/bvh/bvh.h b/intern/cycles/kernel/bvh/bvh.h
index a1d0e307170..9972de86c47 100644
--- a/intern/cycles/kernel/bvh/bvh.h
+++ b/intern/cycles/kernel/bvh/bvh.h
@@ -172,11 +172,11 @@ ccl_device_intersect bool scene_intersect(KernelGlobals kg,
     ray_flags |= OPTIX_RAY_FLAG_TERMINATE_ON_FIRST_HIT;
   }
 
-  optixTrace(scene_intersect_valid(ray) ? kernel_data.bvh.scene : 0,
+  optixTrace(scene_intersect_valid(ray) ? kernel_data.device_bvh : 0,
              ray->P,
              ray->D,
-             0.0f,
-             ray->t,
+             ray->tmin,
+             ray->tmax,
              ray->time,
              ray_mask,
              ray_flags,
@@ -203,28 +203,28 @@ ccl_device_intersect bool scene_intersect(KernelGlobals kg,
 #elif defined(__METALRT__)
 
   if (!scene_intersect_valid(ray)) {
-    isect->t = ray->t;
+    isect->t = ray->tmax;
     isect->type = PRIMITIVE_NONE;
     return false;
   }
 
 #  if defined(__KERNEL_DEBUG__)
   if (is_null_instance_acceleration_structure(metal_ancillaries->accel_struct)) {
-    isect->t = ray->t;
+    isect->t = ray->tmax;
     isect->type = PRIMITIVE_NONE;
     kernel_assert(!"Invalid metal_ancillaries->accel_struct pointer");
     return false;
   }
 
   if (is_null_intersection_function_table(metal_ancillaries->ift_default)) {
-    isect->t = ray->t;
+    isect->t = ray->tmax;
     isect->type = PRIMITIVE_NONE;
     kernel_assert(!"Invalid ift_default");
     return false;
   }
 #  endif
 
-  metal::raytracing::ray r(ray->P, ray->D, 0.0f, ray->t);
+  metal::raytracing::ray r(ray->P, ray->D, ray->tmin, ray->tmax);
   metalrt_intersector_type metalrt_intersect;
 
   if (!kernel_data.bvh.have_curves) {
@@ -263,7 +263,7 @@ ccl_device_intersect bool scene_intersect(KernelGlobals kg,
 #  endif
 
   if (intersection.type == intersection_type::none) {
-    isect->t = ray->t;
+    isect->t = ray->tmax;
     isect->type = PRIMITIVE_NONE;
 
     return false;
@@ -295,14 +295,14 @@ ccl_device_intersect bool scene_intersect(KernelGlobals kg,
   }
 
 #  ifdef __EMBREE__
-  if (kernel_data.bvh.scene) {
-    isect->t = ray->t;
+  if (kernel_data.device_bvh) {
+    isect->t = ray->tmax;
     CCLIntersectContext ctx(kg, CCLIntersectContext::RAY_REGULAR);
     IntersectContext rtc_ctx(&ctx);
     RTCRayHit ray_hit;
     ctx.ray = ray;
     kernel_embree_setup_rayhit(*ray, ray_hit, visibility);
-    rtcIntersect1(kernel_data.bvh.scene, &rtc_ctx.context, &ray_hit);
+    rtcIntersect1(kernel_data.device_bvh, &rtc_ctx.context, &ray_hit);
     if (ray_hit.hit.geomID != RTC_INVALID_GEOMETRY_ID &&
         ray_hit.hit.primID != RTC_INVALID_GEOMETRY_ID) {
       kernel_embree_convert_hit(kg, &ray_hit.ray, &ray_hit.hit, isect);
@@ -357,11 +357,11 @@ ccl_device_intersect bool scene_intersect_local(KernelGlobals kg,
   if (local_isect) {
     local_isect->num_hits = 0; /* Initialize hit count to zero. */
   }
-  optixTrace(scene_intersect_valid(ray) ? kernel_data.bvh.scene : 0,
+  optixTrace(scene_intersect_valid(ray) ? kernel_data.device_bvh : 0,
              ray->P,
              ray->D,
-             0.0f,
-             ray->t,
+             ray->tmin,
+             ray->tmax,
              ray->time,
              0xFF,
              /* Need to always call into __anyhit__kernel_optix_local_hit. */
@@ -405,7 +405,7 @@ ccl_device_intersect bool scene_intersect_local(KernelGlobals kg,
   }
 #    endif
 
-  metal::raytracing::ray r(ray->P, ray->D, 0.0f, ray->t);
+  metal::raytracing::ray r(ray->P, ray->D, ray->tmin, ray->tmax);
   metalrt_intersector_type metalrt_intersect;
 
   metalrt_intersect.force_opacity(metal::raytracing::forced_opacity::non_opaque);
@@ -451,7 +451,7 @@ ccl_device_intersect bool scene_intersect_local(KernelGlobals kg,
   }
 
 #    ifdef __EMBREE__
-  if (kernel_data.bvh.scene) {
+  if (kernel_data.device_bvh) {
     const bool has_bvh = !(kernel_data_fetch(object_flag, local_object) &
                            SD_OBJECT_TRANSFORM_APPLIED);
     CCLIntersectContext ctx(
@@ -470,13 +470,13 @@ ccl_device_intersect bool scene_intersect_local(KernelGlobals kg,
 
     /* If this object has its own BVH, use it. */
     if (has_bvh) {
-      RTCGeometry geom = rtcGetGeometry(kernel_data.bvh.scene, local_object * 2);
+      RTCGeometry geom = rtcGetGeometry(kernel_data.device_bvh, local_object * 2);
       if (geom) {
         float3 P = ray->P;
         float3 dir = ray->D;
         float3 idir = ray->D;
         Transform ob_itfm;
-        rtc_ray.tfar = ray->t *
+        rtc_ray.tfar = ray->tmax *
                        bvh_instance_motion_push(kg, local_object, ray, &P, &dir, &idir, &ob_itfm);
         /* bvh_instance_motion_push() returns the inverse transform but
          * it's not needed here. */
@@ -496,7 +496,7 @@ ccl_device_intersect bool scene_intersect_local(KernelGlobals kg,
       }
     }
     else {
-      rtcOccluded1(kernel_data.bvh.scene, &rtc_ctx.context, &rtc_ray);
+      rtcOccluded1(kernel_data.device_bvh, &rtc_ctx.context, &rtc_ray);
     }
 
     /* rtcOccluded1 sets tfar to -inf if a hit was found. */
@@ -539,11 +539,11 @@ ccl_device_intersect bool scene_intersect_shadow_all(KernelGlobals kg,
     ray_mask = 0xFF;
   }
 
-  optixTrace(scene_intersect_valid(ray) ? kernel_data.bvh.scene : 0,
+  optixTrace(scene_intersect_valid(ray) ? kernel_data.device_bvh : 0,
              ray->P,
              ray->D,
-             0.0f,
-             ray->t,
+             ray->tmin,
+             ray->tmax,
              ray->time,
              ray_mask,
              /* Need to always call into __anyhit__kernel_optix_shadow_all_hit. */
@@ -582,7 +582,7 @@ ccl_device_intersect bool scene_intersect_shadow_all(KernelGlobals kg,
   }
 #    endif
 
-  metal::raytracing::ray r(ray->P, ray->D, 0.0f, ray->t);
+  metal::raytracing::ray r(ray->P, ray->D, ray->tmin, ray->tmax);
   metalrt_intersector_type metalrt_intersect;
 
   metalrt_intersect.force_opacity(metal::raytracing::forced_opacity::non_opaque);
@@ -633,7 +633,7 @@ ccl_device_intersect bool scene_intersect_shadow_all(KernelGlobals kg,
   }
 
 #    ifdef __EMBREE__
-  if (kernel_data.bvh.scene) {
+  if (kernel_data.device_bvh) {
     CCLIntersectContext ctx(kg, CCLIntersectContext::RAY_SHADOW_ALL);
     Intersection *isect_array = (Intersection *)state->shadow_isect;
     ctx.isect_s = isect_array;
@@ -642,7 +642,7 @@ ccl_device_intersect bool scene_intersect_shadow_all(KernelGlobals kg,
     IntersectContext rtc_ctx(&ctx);
     RTCRay rtc_ray;
     kernel_embree_setup_ray(*ray, rtc_ray, visibility);
-    rtcOccluded1(kernel_data.bvh.scene, &rtc_ctx.context, &rtc_ray);
+    rtcOccluded1(kernel_data.device_bvh, &rtc_ctx.context, &rtc_ray);
 
     *num_recorded_hits = ctx.num_recorded_hits;
     *throughput = ctx.throughput;
@@ -698,11 +698,11 @@ ccl_device_intersect bool scene_intersect_volume(KernelGlobals kg,
     ray_mask = 0xFF;
   }
 
-  optixTrace(scene_intersect_valid(ray) ? kernel_data.bvh.scene : 0,
+  optixTrace(scene_intersect_valid(ray) ? kernel_data.device_bvh : 0,
              ray->P,
              ray->D,
-             0.0f,
-             ray->t,
+             ray->tmin,
+             ray->tmax,
              ray->time,
              ray_mask,
              /* Need to always call into __anyhit__kernel_optix_volume_test. */
@@ -744,7 +744,7 @@ ccl_device_intersect bool scene_intersect_volume(KernelGlobals kg,
   }
 #    endif
 
-  metal::raytracing::ray r(ray->P, ray->D, 0.0f, ray->t);
+  metal::raytracing::ray r(ray->P, ray->D, ray->tmin, ray->tmax);
   metalrt_intersector_type metalrt_intersect;
 
   metalrt_intersect.force_opacity(metal::raytracing::forced_opacity::non_opaque);
@@ -825,7 +825,7 @@ ccl_device_intersect uint scene_intersect_volume_all(KernelGlobals kg,
   }
 
 #  ifdef __EMBREE__
-  if (kernel_data.bvh.scene) {
+  if (kernel_data.device_bvh) {
     CCLIntersectContext ctx(kg, CCLIntersectContext::RAY_VOLUME_ALL);
     ctx.isect_s = isect;
     ctx.max_hits = max_hits;
@@ -834,7 +834,7 @@ ccl_device_intersect uint scene_intersect_volume_all(KernelGlobals kg,
     IntersectContext rtc_ctx(&ctx);
     RTCRay rtc_ray;
     kernel_embree_setup_ray(*ray, rtc_ray, visibility);
-    rtcOccluded1(kernel_data.bvh.scene, &rtc_ctx.context, &rtc_ray);
+    rtcOccluded1(kernel_data.device_bvh, &rtc_ctx.context, &rtc_ray);
     return ctx.num_hits;
   }
 #  endif /* __EMBREE__ */
diff --git a/intern/cycles/kernel/bvh/embree.h b/intern/cycles/kernel/bvh/embree.h
index 1c6b9bc1e62..fecbccac2f8 100644
--- a/intern/cycles/kernel/bvh/embree.h
+++ b/intern/cycles/kernel/bvh/embree.h
@@ -83,8 +83,8 @@ ccl_device_inline void kernel_embree_setup_ray(const Ray &ray,
   rtc_ray.dir_x = ray.D.x;
   rtc_ray.dir_y = ray.D.y;
   rtc_ray.dir_z = ray.D.z;
-  rtc_ray.tnear = 0.0f;
-  rtc_ray.tfar = ray.t;
+  rtc_ray.tnear = ray.tmin;
+  rtc_ray.tfar = ray.tmax;
   rtc_ray.time = ray.time;
   rtc_ray.mask = visibility;
 }
@@ -107,7 +107,7 @@ ccl_device_inline bool kernel_embree_is_self_intersection(const KernelGlobals kg
     const int oID = hit->instID[0] / 2;
     if ((ray->self.object == oID) || (ray->self.light_object == oID)) {
       RTCScene inst_scene = (RTCScene)rtcGetGeometryUserData(
-          rtcGetGeometry(kernel_data.bvh.scene, hit->instID[0]));
+          rtcGetGeometry(kernel_data.device_bvh, hit->instID[0]));
       const int pID = hit->primID +
                       (intptr_t)rtcGetGeometryUserData(rtcGetGeometry(inst_scene, hit->geomID));
       status = intersection_skip_self_shadow(ray->self, oID, pID);
@@ -117,7 +117,7 @@ ccl_device_inline bool kernel_embree_is_self_intersection(const KernelGlobals kg
     const int oID = hit->geomID / 2;
     if ((ray->self.object == oID) || (ray->self.light_object == oID)) {
       const int pID = hit->primID + (intptr_t)rtcGetGeometryUserData(
-                                        rtcGetGeometry(kernel_data.bvh.scene, hit->geomID));
+                                        rtcGetGeometry(kernel_data.device_bvh, hit->geomID));
       status = intersection_skip_self_shadow(ray->self, oID, pID);
     }
   }
@@ -133,14 +133,14 @@ ccl_device_inline void kernel_embree_convert_hit(KernelGlobals kg,
   isect->t = ray->tfar;
   if (hit->instID[0] != RTC_INVALID_GEOMETRY_ID) {
     RTCScene inst_scene = (RTCScene)rtcGetGeometryUserData(
-        rtcGetGeometry(kernel_data.bvh.scene, hit->instID[0]));
+        rtcGetGeometry(kernel_data.device_bvh, hit->instID[0]));
     isect->prim = hit->primID +
                   (intptr_t)rtcGetGeometryUserData(rtcGetGeometry(inst_scene, hit->geomID));
     isect->object = hit->instID[0] / 2;
   }
   else {
     isect->prim = hit->primID + (intptr_t)rtcGetGeometryUserData(
-                                    rtcGetGeometry(kernel_data.bvh.scene, hit->geomID));
+                                    rtcGetGeometry(kernel_data.device_bvh, hit->geomID));
     isect->object = hit->geomID / 2;
   }
 
@@ -166,7 +166,7 @@ ccl_device_inline void kernel_embree_convert_sss_hit(
   isect->v = hit->u;
   isect->t = ray->tfar;
   RTCScene inst_scene = (RTCScene)rtcGetGeometryUserData(
-      rtcGetGeometry(kernel_data.bvh.scene, object * 2));
+      rtcGetGeometry(kernel_data.device_bvh, object * 2));
   isect->prim = hit->primID +
                 (intptr_t)rtcGetGeometryUserData(rtcGetGeometry(inst_scene, hit->geomID));
   isect->object = object;
diff --git a/intern/cycles/kernel/bvh/local.h b/intern/cycles/kernel/bvh/local.h
index 3b6b30ea93d..017a241ef4a 100644
--- a/intern/cycles/kernel/bvh/local.h
+++ b/intern/cycles/kernel/bvh/local.h
@@ -47,8 +47,9 @@ ccl_device_inline
   float3 P = ray->P;
   float3 dir = bvh_clamp_direction(ray->D);
   float3 idir = bvh_inverse_direction(dir);
+  float tmin = ray->tmin;
   int object = OBJECT_NONE;
-  float isect_t = ray->t;
+  float isect_t = ray->tmax;
 
   if (local_isect != NULL) {
     local_isect->num_hits = 0;
@@ -59,10 +60,13 @@ ccl_device_inline
   if (!(object_flag & SD_OBJECT_TRANSFORM_APPLIED)) {
 #if BVH_FEATURE(BVH_MOTION)
     Transform ob_itfm;
-    isect_t *= bvh_instance_motion_push(kg, local_object, ray, &P, &dir, &idir, &ob_itfm);
+    const float t_world_to_instance = bvh_instance_motion_push(
+        kg, local_object, ray, &P, &dir, &idir, &ob_itfm);
 #else
-    isect_t *= bvh_instance_push(kg, local_object, ray, &P, &dir, &idir);
+    const float t_world_to_instance = bvh_instance_push(kg, local_object, ray, &P, &dir, &idir);
 #endif
+    isect_t *= t_world_to_instance;
+    tmin *= t_world_to_instance;
     object = local_object;
   }
 
@@ -81,6 +85,7 @@ ccl_device_inline
                                        dir,
 #endif
                                        idir,
+                                       tmin,
                                        isect_t,
                                        node_addr,
                                        PATH_RAY_ALL_VISIBILITY,
@@ -155,6 +160,7 @@ ccl_device_inline
                                            local_object,
                                            prim,
                                            prim_addr,
+                                           tmin,
                                            isect_t,
                                            lcg_state,
                                            max_hits)) {
@@ -191,6 +197,7 @@ ccl_device_inline
                                                   local_object,
                                                   prim,
                                                   prim_addr,
+                                                  tmin,
                                                   isect_t,
                                                   lcg_state,
                                                   max_hits)) {
diff --git a/intern/cycles/kernel/bvh/nodes.h b/intern/cycles/kernel/bvh/nodes.h
index c19dea9223b..e02841fad16 100644
--- a/intern/cycles/kernel/bvh/nodes.h
+++ b/intern/cycles/kernel/bvh/nodes.h
@@ -18,7 +18,8 @@ ccl_device_forceinline Transform bvh_unaligned_node_fetch_space(KernelGlobals kg
 ccl_device_forceinline int bvh_aligned_node_intersect(KernelGlobals kg,
                                                       const float3 P,
                                                       const float3 idir,
-                                                      const float t,
+                                                      const float tmin,
+                                                      const float tmax,
                                                       const int node_addr,
                                                       const uint visibility,
                                                       float dist[2])
@@ -39,8 +40,8 @@ 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(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 c0min = max4(tmin, min(c0lox, c0hix), min(c0loy, c0hiy), min(c0loz, c0hiz));
+  float c0max = min4(tmax, 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;
@@ -48,8 +49,8 @@ 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(0.0f, min(c1lox, c1hix), min(c1loy, c1hiy), min(c1loz, c1hiz));
-  float c1max = min4(t, max(c1lox, c1hix), max(c1loy, c1hiy), max(c1loz, c1hiz));
+  float c1min = max4(tmin, min(c1lox, c1hix), min(c1loy, c1hiy), min(c1loz, c1hiz));
+  float c1max = min4(tmax, max(c1lox, c1hix), max(c1loy, c1hiy), max(c1loz, c1hiz));
 
   dist[0] = c0min;
   dist[1] = c1min;
@@ -66,7 +67,8 @@ ccl_device_forceinline int bvh_aligned_node_intersect(KernelGlobals kg,
 ccl_device_forceinline bool bvh_unaligned_node_intersect_child(KernelGlobals kg,
                                                                const float3 P,
                                                                const float3 dir,
-                                                               const float t,
+                                                               const float tmin,
+                                                               const float tmax,
                                                                int node_addr,
                                                                int child,
                                                                float dist[2])
@@ -83,8 +85,8 @@ ccl_device_forceinline bool bvh_unaligned_node_intersect_child(KernelGlobals kg,
   const float far_x = max(lower_xyz.x, upper_xyz.x);
   const float far_y = max(lower_xyz.y, upper_xyz.y);
   const float far_z = max(lower_xyz.z, upper_xyz.z);
-  const float tnear = max4(0.0f, near_x, near_y, near_z);
-  const float tfar = min4(t, far_x, far_y, far_z);
+  const float tnear = max4(tmin, near_x, near_y, near_z);
+  const float tfar = min4(tmax, far_x, far_y, far_z);
   *dist = tnear;
   return tnear <= tfar;
 }
@@ -93,7 +95,8 @@ ccl_device_forceinline int bvh_unaligned_node_intersect(KernelGlobals kg,
                                                         const float3 P,
                                                         const float3 dir,
                                                         const float3 idir,
-                                                        const float t,
+                                                        const float tmin,
+                                                        const float tmax,
                                                         const int node_addr,
                                                         const uint visibility,
                                                         float dist[2])
@@ -102,7 +105,7 @@ ccl_device_forceinline int bvh_unaligned_node_intersect(KernelGlobals kg,
 #ifdef __VISIBILITY_FLAG__
   float4 cnodes = kernel_data_fetch(bvh_nodes, node_addr + 0);
 #endif
-  if (bvh_unaligned_node_intersect_child(kg, P, dir, t, node_addr, 0, &dist[0])) {
+  if (bvh_unaligned_node_intersect_child(kg, P, dir, tmin, tmax, node_addr, 0, &dist[0])) {
 #ifdef __VISIBILITY_FLAG__
     if ((__float_as_uint(cnodes.x) & visibility))
 #endif
@@ -110,7 +113,7 @@ ccl_device_forceinline int bvh_unaligned_node_intersect(KernelGlobals kg,
       mask |= 1;
     }
   }
-  if (bvh_unaligned_node_intersect_child(kg, P, dir, t, node_addr, 1, &dist[1])) {
+  if (bvh_unaligned_node_intersect_child(kg, P, dir, tmin, tmax, node_addr, 1, &dist[1])) {
 #ifdef __VISIBILITY_FLAG__
     if ((__float_as_uint(cnodes.y) & visibility))
 #endif
@@ -125,16 +128,17 @@ ccl_device_forceinline int bvh_node_intersect(KernelGlobals kg,
                                               const float3 P,
                                               const float3 dir,
                                               const float3 idir,
-                                              const float t,
+                                              const float tmin,
+                                              const float tmax,
                                               const int node_addr,
                                               const uint visibility,
                                               float dist[2])
 {
   float4 node = kernel_data_fetch(bvh_nodes, node_addr);
   if (__float_as_uint(node.x) & PATH_RAY_NODE_UNALIGNED) {
-    return bvh_unaligned_node_intersect(kg, P, dir, idir, t, node_addr, visibility, dist);
+    return bvh_unaligned_node_intersect(kg, P, dir, idir, tmin, tmax, node_addr, visibility, dist);
   }
   else {
-    return bvh_aligned_node_intersect(kg, P, idir, t, node_addr, visibility, dist);
+    return bvh_aligned_node_intersect(kg, P, idir, tmin, tmax, node_addr, visibility, dist);
   }
 }
diff --git a/intern/cycles/kernel/bvh/shadow_all.h b/intern/cycles/kernel/bvh/shadow_all.h
index e86fe867eac..db3c91569aa 100644
--- a/intern/cycles/kernel/bvh/shadow_all.h
+++ b/intern/cycles/kernel/bvh/shadow_all.h
@@ -49,6 +49,7 @@ ccl_device_inline
   float3 P = ray->P;
   float3 dir = bvh_clamp_direction(ray->D);
   float3 idir = bvh_inverse_direction(dir);
+  float tmin = ray->tmin;
   int object = OBJECT_NONE;
   uint num_hits = 0;
 
@@ -59,12 +60,12 @@ ccl_device_inline
   /* Max distance in world space. May be dynamically reduced when max number of
    * recorded hits is exceeded and we no longer need to find hits beyond the max
    * distance found. */
-  float t_max_world = ray->t;
+  float t_max_world = ray->tmax;
 
   /* Current maximum distance to the intersection.
    * Is calculated as a ray length, transformed to an object space when entering
    * instance node. */
-  float t_max_current = ray->t;
+  float t_max_current = ray->tmax;
 
   /* Conversion from world to local space for the current instance if any, 1.0
    * otherwise. */
@@ -88,6 +89,7 @@ ccl_device_inline
                                        dir,
 #endif
                                        idir,
+                                       tmin,
                                        t_max_current,
                                        node_addr,
                                        visibility,
@@ -156,8 +158,16 @@ ccl_device_inline
 
             switch (type & PRIMITIVE_ALL) {
               case PRIMITIVE_TRIANGLE: {
-                hit = triangle_intersect(
-                    kg, &isect, P, dir, t_max_current, visibility, prim_object, prim, prim_addr);
+                hit = triangle_intersect(kg,
+                                         &isect,
+                                         P,
+                                         dir,
+                                         tmin,
+                                         t_max_current,
+                                         visibility,
+                                         prim_object,
+                                         prim,
+                                         prim_addr);
                 break;
               }
 #if BVH_FEATURE(BVH_MOTION)
@@ -166,6 +176,7 @@ ccl_device_inline
                                                 &isect,
                                                 P,
                                                 dir,
+                                                tmin,
                                                 t_max_current,
                                                 ray->time,
                                                 visibility,
@@ -189,8 +200,16 @@ ccl_device_inline
                 }
 
                 const int curve_type = kernel_data_fetch(prim_type, prim_addr);
-                hit = curve_intersect(
-                    kg, &isect, P, dir, t_max_current, prim_object, prim, ray->time, curve_type);
+                hit = curve_intersect(kg,
+                                      &isect,
+                                      P,
+                                      dir,
+                                      tmin,
+                                      t_max_current,
+                                      prim_object,
+                                      prim,
+                                      ray->time,
+                                      curve_type);
 
                 break;
               }
@@ -207,8 +226,16 @@ ccl_device_inline
                 }
 
                 const int point_type = kernel_data_fetch(prim_type, prim_addr);
-                hit = point_intersect(
-                    kg, &isect, P, dir, t_max_current, prim_object, prim, ray->time, point_type);
+                hit = point_intersect(kg,
+                                      &isect,
+                                      P,
+                                      dir,
+                                      tmin,
+                                      t_max_current,
+                                      prim_object,
+                                      prim,
+                                      ray->time,
+                                      point_type);
                 break;
               }
 #endif /* BVH_FEATURE(BVH_POINTCLOUD) */
@@ -302,6 +329,7 @@ ccl_device_inline
 
           /* Convert intersection to object space. */
           t_max_current *= t_world_to_instance;
+          tmin *= t_world_to_instance;
 
           ++stack_ptr;
           kernel_assert(stack_ptr < BVH_STACK_SIZE);
@@ -323,7 +351,8 @@ ccl_device_inline
 #endif
 
       /* Restore world space ray length. */
-      t_max_current = ray->t;
+      tmin = ray->tmin;
+      t_max_current = ray->tmax;
 
       object = OBJECT_NONE;
       t_world_to_instance = 1.0f;
diff --git a/intern/cycles/kernel/bvh/traversal.h b/intern/cycles/kernel/bvh/traversal.h
index 784fbf4fd11..0ff38bf02de 100644
--- a/intern/cycles/kernel/bvh/traversal.h
+++ b/intern/cycles/kernel/bvh/traversal.h
@@ -43,13 +43,14 @@ ccl_device_noinline bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals kg,
   float3 P = ray->P;
   float3 dir = bvh_clamp_direction(ray->D);
   float3 idir = bvh_inverse_direction(dir);
+  float tmin = ray->tmin;
   int object = OBJECT_NONE;
 
 #if BVH_FEATURE(BVH_MOTION)
   Transform ob_itfm;
 #endif
 
-  isect->t = ray->t;
+  isect->t = ray->tmax;
   isect->u = 0.0f;
   isect->v = 0.0f;
   isect->prim = PRIM_NONE;
@@ -71,6 +72,7 @@ ccl_device_noinline bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals kg,
                                          dir,
 #endif
                                          idir,
+                                         tmin,
                                          isect->t,
                                          node_addr,
                                          visibility,
@@ -133,8 +135,16 @@ ccl_device_noinline bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals kg,
 
             switch (type & PRIMITIVE_ALL) {
               case PRIMITIVE_TRIANGLE: {
-                if (triangle_intersect(
-                        kg, isect, P, dir, isect->t, visibility, prim_object, prim, prim_addr)) {
+                if (triangle_intersect(kg,
+                                       isect,
+                                       P,
+                                       dir,
+                                       tmin,
+                                       isect->t,
+                                       visibility,
+                                       prim_object,
+                                       prim,
+                                       prim_addr)) {
                   /* shadow ray early termination */
                   if (visibility & PATH_RAY_SHADOW_OPAQUE)
                     return true;
@@ -147,6 +157,7 @@ ccl_device_noinline bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals kg,
                                               isect,
                                               P,
                                               dir,
+                                              tmin,
                                               isect->t,
                                               ray->time,
                                               visibility,
@@ -174,7 +185,7 @@ ccl_device_noinline bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals kg,
 
                 const int curve_type = kernel_data_fetch(prim_type, prim_addr);
                 const bool hit = curve_intersect(
-                    kg, isect, P, dir, isect->t, prim_object, prim, ray->time, curve_type);
+                    kg, isect, P, dir, tmin, isect->t, prim_object, prim, ray->time, curve_type);
                 if (hit) {
                   /* shadow ray early termination */
                   if (visibility & PATH_RAY_SHADOW_OPAQUE)
@@ -195,7 +206,7 @@ ccl_device_noinline bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals kg,
 
                 const int point_type = kernel_data_fetch(prim_type, prim_addr);
                 const bool hit = point_intersect(
-                    kg, isect, P, dir, isect->t, prim_object, prim, ray->time, point_type);
+                    kg, isect, P, dir, tmin, isect->t, prim_object, prim, ray->time, point_type);
                 if (hit) {
                   /* shadow ray early termination */
                   if (visibility & PATH_RAY_SHADOW_OPAQUE)
@@ -212,11 +223,15 @@ ccl_device_noinline bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals kg,
           object = kernel_data_fetch(prim_object, -prim_addr - 1);
 
 #if BVH_FEATURE(BVH_MOTION)
-          isect->t *= bvh_instance_motion_push(kg, object, ray, &P, &dir, &idir, &ob_itfm);
+          const float t_world_to_instance = bvh_instance_motion_push(
+              kg, object, ray, &P, &dir, &idir, &ob_itfm);
 #else
-          isect->t *= bvh_instance_push(kg, object, ray, &P, &dir, &idir);
+          const float t_world_to_instance = bvh_instance_push(kg, object, ray, &P, &dir, &idir);
 #endif
 
+          isect->t *= t_world_to_instance;
+          tmin *= t_world_to_instance;
+
           ++stack_ptr;
           kernel_assert(stack_ptr < BVH_STACK_SIZE);
           traversal_stack[stack_ptr] = ENTRYPOINT_SENTINEL;
@@ -235,6 +250,7 @@ ccl_device_noinline bool BVH_FUNCTION_FULL_NAME(BVH)(KernelGlobals kg,
 #else
       isect->t = bvh_instance_pop(kg, object, ray, &P, &dir, &idir, isect->t);
 #endif
+      tmin = ray->tmin;
 
       object = OBJECT_NONE;
       node_addr = traversal_stack[stack_ptr];
diff --git a/intern/cycles/kernel/bvh/util.h b/intern/cycles/kernel/bvh/util.h
index 572e023db25..1795ae4c790 100644
--- a/intern/cycles/kernel/bvh/util.h
+++ b/intern/cycles/kernel/bvh/util.h
@@ -5,6 +5,19 @@
 
 CCL_NAMESPACE_BEGIN
 
+/* Offset intersection distance by the smallest possible amount, to skip
+ * intersections at this distance. This works in cases where the ray start
+ * position is unchanged and only tmin is updated, since for self
+ * intersection we'll be comparing against the exact same distances. */
+ccl_device_forceinline float intersection_t_offset(const float t)
+{
+  /* This is a simplified version of nextafterf(t, FLT_MAX), only dealing with
+   * non-negative and finite t. */
+  kernel_assert(t >= 0.0f && isfinite_safe(t));
+  const uint32_t bits = (t == 0.0f) ? 1 : __float_as_uint(t) + 1;
+  return __uint_as_float(bits);
+}
+
 #if defined(__KERNEL_CPU__)
 ccl_device int intersections_compare(const void *a, const void *b)
 {
diff --git a/intern/cycles/kernel/bvh/volume.h b/intern/cycles/kernel/bvh/volume.h
index 9715712a8f2..bd4e508ecac 100644
--- a/intern/cycles/kernel/bvh/volume.h
+++ b/intern/cycles/kernel/bvh/volume.h
@@ -46,13 +46,14 @@ ccl_device_inline
   float3 P = ray->P;
   float3 dir = bvh_clamp_direction(ray->D);
   float3 idir = bvh_inverse_direction(dir);
+  float tmin = ray->tmin;
   int object = OBJECT_NONE;
 
 #if BVH_FEATURE(BVH_MOTION)
   Transform ob_itfm;
 #endif
 
-  isect->t = ray->t;
+  isect->t = ray->tmax;
   isect->u = 0.0f;
   isect->v = 0.0f;
   isect->prim = PRIM_NONE;
@@ -73,6 +74,7 @@ ccl_device_inline
                                        dir,
 #endif
                                        idir,
+                                       tmin,
                                        isect->t,
                                        node_addr,
                                        visibility,
@@ -140,7 +142,7 @@ ccl_device_inline
                   continue;
                 }
                 triangle_intersect(
-                    kg, isect, P, dir, isect->t, visibility, prim_object, prim, prim_addr);
+                    kg, isect, P, dir, tmin, isect->t, visibility, prim_object, prim, prim_addr);
               }
               break;
             }
@@ -165,6 +167,7 @@ ccl_device_inline
                                           isect,
                                           P,
                                           dir,
+                                          tmin,
                                           isect->t,
                                           ray->time,
                                           visibility,
@@ -186,11 +189,15 @@ ccl_device_inline
           int object_flag = kernel_data_fetch(object_flag, object);
           if (object_flag & SD_OBJECT_HAS_VOLUME) {
 #if BVH_FEATURE(BVH_MOTION)
-            isect->t *= bvh_instance_motion_push(kg, object, ray, &P, &dir, &idir, &ob_itfm);
+            const float t_world_to_instance = bvh_instance_motion_push(
+                kg, object, ray, &P, &dir, &idir, &ob_itfm);
 #else
-            isect->t *= bvh_instance_push(kg, object, ray, &P, &dir, &idir);
+            const float t_world_to_instance = bvh_instance_push(kg, object, ray, &P, &dir, &idir);
 #endif
 
+            isect->t *= t_world_to_instance;
+            tmin *= t_world_to_instance;
+
             ++stack_ptr;
             kernel_assert(stack_ptr < BVH_STACK_SIZE);
             traversal_stack[stack_ptr] = ENTRYPOINT_SENTINEL;
@@ -217,6 +224,8 @@ ccl_device_inline
       isect->t = bvh_instance_pop(kg, object, ray, &P, &dir, &idir, isect->t);
 #endif
 
+      tmin = ray->tmin;
+
       object = OBJECT_NONE;
       node_addr = traversal_stack[stack_ptr];
       --stack_ptr;
diff --git a/intern/cycles/kernel/bvh/volume_all.h b/intern/cycles/kernel/bvh/volume_all.h
index d06ea8fe557..c6eeb07a14d 100644
--- a/intern/cycles/kernel/bvh/volume_all.h
+++ b/intern/cycles/kernel/bvh/volume_all.h
@@ -44,12 +44,12 @@ ccl_device_inline
   int node_addr = kernel_data.bvh.root;
 
   /* ray parameters in registers */
-  const float tmax = ray->t;
   float3 P = ray->P;
   float3 dir = bvh_clamp_direction(ray->D);
   float3 idir = bvh_inverse_direction(dir);
+  float tmin = ray->tmin;
   int object = OBJECT_NONE;
-  float isect_t = tmax;
+  float isect_t = ray->tmax;
 
 #if BVH_FEATURE(BVH_MOTION)
   Transform ob_itfm;
@@ -58,7 +58,7 @@ ccl_device_inline
   int num_hits_in_instance = 0;
 
   uint num_hits = 0;
-  isect_array->t = tmax;
+  isect_array->t = ray->tmax;
 
   /* traversal loop */
   do {
@@ -75,6 +75,7 @@ ccl_device_inline
                                        dir,
 #endif
                                        idir,
+                                       tmin,
                                        isect_t,
                                        node_addr,
                                        visibility,
@@ -141,8 +142,16 @@ ccl_device_inline
                 if ((object_flag & SD_OBJECT_HAS_VOLUME) == 0) {
                   continue;
                 }
-                hit = triangle_intersect(
-                    kg, isect_array, P, dir, isect_t, visibility, prim_object, prim, prim_addr);
+                hit = triangle_intersect(kg,
+                                         isect_array,
+                                         P,
+                                         dir,
+                                         tmin,
+                                         isect_t,
+                                         visibility,
+                                         prim_object,
+                                         prim,
+                                         prim_addr);
                 if (hit) {
                   /* Move on to next entry in intersections array. */
                   isect_array++;
@@ -189,6 +198,7 @@ ccl_device_inline
                                                 isect_array,
                                                 P,
                                                 dir,
+                                                tmin,
                                                 isect_t,
                                                 ray->time,
                                                 visibility,
@@ -232,11 +242,15 @@ ccl_device_inline
           int object_flag = kernel_data_fetch(object_flag, object);
           if (object_flag & SD_OBJECT_HAS_VOLUME) {
 #if BVH_FEATURE(BVH_MOTION)
-            isect_t *= bvh_instance_motion_push(kg, object, ray, &P, &dir, &idir, &ob_itfm);
+            const float t_world_to_instance = bvh_instance_motion_push(
+                kg, object, ray, &P, &dir, &idir, &ob_itfm);
 #else
-            isect_t *= bvh_instance_push(kg, object, ray, &P, &dir, &idir);
+            const float t_world_to_instance = bvh_instance_push(kg, object, ray, &P, &dir, &idir);
 #endif
 
+            isect_t *= t_world_to_instance;
+            tmin *= t_world_to_instance;
+
             num_hits_in_instance = 0;
             isect_array->t = isect_t;
 
@@ -280,7 +294,8 @@ ccl_device_inline
 #endif
       }
 
-      isect_t = tmax;
+      tmin = ray->tmin;
+      isect_t = ray->tmax;
       isect_array->t = isect_t;
 
       object = OBJECT_NONE;
diff --git a/intern/cycles/kernel/camera/camera.h b/intern/cycles/kernel/camera/camera.h
index 25960a94ddb..926ccf7b86f 100644
--- a/intern/cycles/kernel/camera/camera.h
+++ b/intern/cycles/kernel/camera/camera.h
@@ -165,9 +165,11 @@ ccl_device void camera_sample_perspective(KernelGlobals kg,
   float nearclip = kernel_data.cam.nearclip * z_inv;
   ray->P += nearclip * ray->D;
   ray->dP += nearclip * ray->dD;
-  ray->t = kernel_data.cam.cliplength * z_inv;
+  ray->tmin = 0.0f;
+  ray->tmax = kernel_data.cam.cliplength * z_inv;
 #else
-  ray->t = FLT_MAX;
+  ray->tmin = 0.0f;
+  ray->tmax = FLT_MAX;
 #endif
 }
 
@@ -231,9 +233,11 @@ ccl_device void camera_sample_orthographic(KernelGlobals kg,
 
 #ifdef __CAMERA_CLIPPING__
   /* clipping */
-  ray->t = kernel_data.cam.cliplength;
+  ray->tmin = 0.0f;
+  ray->tmax = kernel_data.cam.cliplength;
 #else
-  ray->t = FLT_MAX;
+  ray->tmin = 0.0f;
+  ray->tmax = FLT_MAX;
 #endif
 }
 
@@ -258,7 +262,7 @@ ccl_device_inline void camera_sample_panorama(ccl_constant KernelCamera *cam,
 
   /* indicates ray should not receive any light, outside of the lens */
   if (is_zero(D)) {
-    ray->t = 0.0f;
+    ray->tmax = 0.0f;
     return;
   }
 
@@ -349,9 +353,11 @@ ccl_device_inline void camera_sample_panorama(ccl_constant KernelCamera *cam,
   float nearclip = cam->nearclip;
   ray->P += nearclip * ray->D;
   ray->dP += nearclip * ray->dD;
-  ray->t = cam->cliplength;
+  ray->tmin = 0.0f;
+  ray->tmax = cam->cliplength;
 #else
-  ray->t = FLT_MAX;
+  ray->tmin = 0.0f;
+  ray->tmax = FLT_MAX;
 #endif
 }
 
@@ -368,7 +374,7 @@ ccl_device_inline void camera_sample(KernelGlobals kg,
                                      ccl_private Ray *ray)
 {
   /* pixel filter */
-  int filter_table_offset = kernel_data.film.filter_table_offset;
+  int filter_table_offset = kernel_data.tables.filter_table_offset;
   float raster_x = x + lookup_table_read(kg, filter_u, filter_table_offset, FILTER_TABLE_SIZE);
   float raster_y = y + lookup_table_read(kg, filter_v, filter_table_offset, FILTER_TABLE_SIZE);
 
diff --git a/intern/cycles/kernel/data_template.h b/intern/cycles/kernel/data_template.h
new file mode 100644
index 00000000000..b06ac62a5d8
--- /dev/null
+++ b/intern/cycles/kernel/data_template.h
@@ -0,0 +1,206 @@
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2011-2022 Blender Foundation */
+
+#ifndef KERNEL_STRUCT_BEGIN
+#  define KERNEL_STRUCT_BEGIN(name, parent)
+#endif
+#ifndef KERNEL_STRUCT_END
+#  define KERNEL_STRUCT_END(name)
+#endif
+#ifndef KERNEL_STRUCT_MEMBER
+#  define KERNEL_STRUCT_MEMBER(parent, type, name)
+#endif
+
+/* Background. */
+
+KERNEL_STRUCT_BEGIN(KernelBackground, background)
+/* xyz store direction, w the angle. float4 instead of float3 is used
+ * to ensure consistent padding/alignment across devices. */
+KERNEL_STRUCT_MEMBER(background, float4, sun)
+/* Only shader index. */
+KERNEL_STRUCT_MEMBER(background, int, surface_shader)
+KERNEL_STRUCT_MEMBER(background, int, volume_shader)
+KERNEL_STRUCT_MEMBER(background, float, volume_step_size)
+KERNEL_STRUCT_MEMBER(background, int, transparent)
+KERNEL_STRUCT_MEMBER(background, float, transparent_roughness_squared_threshold)
+/* Portal sampling. */
+KERNEL_STRUCT_MEMBER(background, float, portal_weight)
+KERNEL_STRUCT_MEMBER(background, int, num_portals)
+KERNEL_STRUCT_MEMBER(background, int, portal_offset)
+/* Sun sampling. */
+KERNEL_STRUCT_MEMBER(background, float, sun_weight)
+/* Importance map sampling. */
+KERNEL_STRUCT_MEMBER(background, float, map_weight)
+KERNEL_STRUCT_MEMBER(background, int, map_res_x)
+KERNEL_STRUCT_MEMBER(background, int, map_res_y)
+/* Multiple importance sampling. */
+KERNEL_STRUCT_MEMBER(background, int, use_mis)
+/* Lightgroup. */
+KERNEL_STRUCT_MEMBER(background, int, lightgroup)
+/* Padding. */
+KERNEL_STRUCT_MEMBER(background, int, pad1)
+KERNEL_STRUCT_MEMBER(background, int, pad2)
+KERNEL_STRUCT_MEMBER(background, int, pad3)
+KERNEL_STRUCT_END(KernelBackground)
+
+/* BVH: own BVH2 if no native device acceleration struct used. */
+
+KERNEL_STRUCT_BEGIN(KernelBVH, bvh)
+KERNEL_STRUCT_MEMBER(bvh, int, root)
+KERNEL_STRUCT_MEMBER(bvh, int, have_motion)
+KERNEL_STRUCT_MEMBER(bvh, int, have_curves)
+KERNEL_STRUCT_MEMBER(bvh, int, bvh_layout)
+KERNEL_STRUCT_MEMBER(bvh, int, use_bvh_steps)
+KERNEL_STRUCT_MEMBER(bvh, int, curve_subdivisions)
+KERNEL_STRUCT_MEMBER(bvh, int, pad1)
+KERNEL_STRUCT_MEMBER(bvh, int, pad2)
+KERNEL_STRUCT_END(KernelBVH)
+
+/* Film. */
+
+KERNEL_STRUCT_BEGIN(KernelFilm, film)
+/* XYZ to rendering color space transform. float4 instead of float3 to
+ * ensure consistent padding/alignment across devices. */
+KERNEL_STRUCT_MEMBER(film, float4, xyz_to_r)
+KERNEL_STRUCT_MEMBER(film, float4, xyz_to_g)
+KERNEL_STRUCT_MEMBER(film, float4, xyz_to_b)
+KERNEL_STRUCT_MEMBER(film, float4, rgb_to_y)
+/* Rec709 to rendering color space. */
+KERNEL_STRUCT_MEMBER(film, float4, rec709_to_r)
+KERNEL_STRUCT_MEMBER(film, float4, rec709_to_g)
+KERNEL_STRUCT_MEMBER(film, float4, rec709_to_b)
+KERNEL_STRUCT_MEMBER(film, int, is_rec709)
+/* Exposuse. */
+KERNEL_STRUCT_MEMBER(film, float, exposure)
+/* Passed used. */
+KERNEL_STRUCT_MEMBER(film, int, pass_flag)
+KERNEL_STRUCT_MEMBER(film, int, light_pass_flag)
+/* Pass offsets. */
+KERNEL_STRUCT_MEMBER(film, int, pass_stride)
+KERNEL_STRUCT_MEMBER(film, int, pass_combined)
+KERNEL_STRUCT_MEMBER(film, int, pass_depth)
+KERNEL_STRUCT_MEMBER(film, int, pass_position)
+KERNEL_STRUCT_MEMBER(film, int, pass_normal)
+KERNEL_STRUCT_MEMBER(film, int, pass_roughness)
+KERNEL_STRUCT_MEMBER(film, int, pass_motion)
+KERNEL_STRUCT_MEMBER(film, int, pass_motion_weight)
+KERNEL_STRUCT_MEMBER(film, int, pass_uv)
+KERNEL_STRUCT_MEMBER(film, int, pass_object_id)
+KERNEL_STRUCT_MEMBER(film, int, pass_material_id)
+KERNEL_STRUCT_MEMBER(film, int, pass_diffuse_color)
+KERNEL_STRUCT_MEMBER(film, int, pass_glossy_color)
+KERNEL_STRUCT_MEMBER(film, int, pass_transmission_color)
+KERNEL_STRUCT_MEMBER(film, int, pass_diffuse_indirect)
+KERNEL_STRUCT_MEMBER(film, int, pass_glossy_indirect)
+KERNEL_STRUCT_MEMBER(film, int, pass_transmission_indirect)
+KERNEL_STRUCT_MEMBER(film, int, pass_volume_indirect)
+KERNEL_STRUCT_MEMBER(film, int, pass_diffuse_direct)
+KERNEL_STRUCT_MEMBER(film, int, pass_glossy_direct)
+KERNEL_STRUCT_MEMBER(film, int, pass_transmission_direct)
+KERNEL_STRUCT_MEMBER(film, int, pass_volume_direct)
+KERNEL_STRUCT_MEMBER(film, int, pass_emission)
+KERNEL_STRUCT_MEMBER(film, int, pass_background)
+KERNEL_STRUCT_MEMBER(film, int, pass_ao)
+KERNEL_STRUCT_MEMBER(film, float, pass_alpha_threshold)
+KERNEL_STRUCT_MEMBER(film, int, pass_shadow)
+KERNEL_STRUCT_MEMBER(film, float, pass_shadow_scale)
+KERNEL_STRUCT_MEMBER(film, int, pass_shadow_catcher)
+KERNEL_STRUCT_MEMBER(film, int, pass_shadow_catcher_sample_count)
+KERNEL_STRUCT_MEMBER(film, int, pass_shadow_catcher_matte)
+/* Cryptomatte. */
+KERNEL_STRUCT_MEMBER(film, int, cryptomatte_passes)
+KERNEL_STRUCT_MEMBER(film, int, cryptomatte_depth)
+KERNEL_STRUCT_MEMBER(film, int, pass_cryptomatte)
+/* Adaptive sampling. */
+KERNEL_STRUCT_MEMBER(film, int, pass_adaptive_aux_buffer)
+KERNEL_STRUCT_MEMBER(film, int, pass_sample_count)
+/* Mist. */
+KERNEL_STRUCT_MEMBER(film, int, pass_mist)
+KERNEL_STRUCT_MEMBER(film, float, mist_start)
+KERNEL_STRUCT_MEMBER(film, float, mist_inv_depth)
+KERNEL_STRUCT_MEMBER(film, float, mist_falloff)
+/* Denoising. */
+KERNEL_STRUCT_MEMBER(film, int, pass_denoising_normal)
+KERNEL_STRUCT_MEMBER(film, int, pass_denoising_albedo)
+KERNEL_STRUCT_MEMBER(film, int, pass_denoising_depth)
+/* AOVs. */
+KERNEL_STRUCT_MEMBER(film, int, pass_aov_color)
+KERNEL_STRUCT_MEMBER(film, int, pass_aov_value)
+/* Light groups. */
+KERNEL_STRUCT_MEMBER(film, int, pass_lightgroup)
+/* Baking. */
+KERNEL_STRUCT_MEMBER(film, int, pass_bake_primitive)
+KERNEL_STRUCT_MEMBER(film, int, pass_bake_differential)
+/* Shadow catcher. */
+KERNEL_STRUCT_MEMBER(film, int, use_approximate_shadow_catcher)
+/* Padding. */
+KERNEL_STRUCT_MEMBER(film, int, pad1)
+KERNEL_STRUCT_MEMBER(film, int, pad2)
+KERNEL_STRUCT_END(KernelFilm)
+
+/* Integrator. */
+
+KERNEL_STRUCT_BEGIN(KernelIntegrator, integrator)
+/* Emission. */
+KERNEL_STRUCT_MEMBER(integrator, int, use_direct_light)
+KERNEL_STRUCT_MEMBER(integrator, int, num_distribution)
+KERNEL_STRUCT_MEMBER(integrator, int, num_all_lights)
+KERNEL_STRUCT_MEMBER(integrator, float, pdf_triangles)
+KERNEL_STRUCT_MEMBER(integrator, float, pdf_lights)
+KERNEL_STRUCT_MEMBER(integrator, float, light_inv_rr_threshold)
+/* Bounces. */
+KERNEL_STRUCT_MEMBER(integrator, int, min_bounce)
+KERNEL_STRUCT_MEMBER(integrator, int, max_bounce)
+KERNEL_STRUCT_MEMBER(integrator, int, max_diffuse_bounce)
+KERNEL_STRUCT_MEMBER(integrator, int, max_glossy_bounce)
+KERNEL_STRUCT_MEMBER(integrator, int, max_transmission_bounce)
+KERNEL_STRUCT_MEMBER(integrator, int, max_volume_bounce)
+/* AO bounces. */
+KERNEL_STRUCT_MEMBER(integrator, int, ao_bounces)
+KERNEL_STRUCT_MEMBER(integrator, float, ao_bounces_distance)
+KERNEL_STRUCT_MEMBER(integrator, float, ao_bounces_factor)
+KERNEL_STRUCT_MEMBER(integrator, float, ao_additive_factor)
+/* Transparency. */
+KERNEL_STRUCT_MEMBER(integrator, int, transparent_min_bounce)
+KERNEL_STRUCT_MEMBER(integrator, int, transparent_max_bounce)
+KERNEL_STRUCT_MEMBER(integrator, int, transparent_shadows)
+/* Caustics. */
+KERNEL_STRUCT_MEMBER(integrator, int, caustics_reflective)
+KERNEL_STRUCT_MEMBER(integrator, int, caustics_refractive)
+KERNEL_STRUCT_MEMBER(integrator, float, filter_glossy)
+/* Seed. */
+KERNEL_STRUCT_MEMBER(integrator, int, seed)
+/* Clamp. */
+KERNEL_STRUCT_MEMBER(integrator, float, sample_clamp_direct)
+KERNEL_STRUCT_MEMBER(integrator, float, sample_clamp_indirect)
+/* MIS. */
+KERNEL_STRUCT_MEMBER(integrator, int, use_lamp_mis)
+/* Caustics. */
+KERNEL_STRUCT_MEMBER(integrator, int, use_caustics)
+/* Sampling pattern. */
+KERNEL_STRUCT_MEMBER(integrator, int, sampling_pattern)
+KERNEL_STRUCT_MEMBER(integrator, float, scrambling_distance)
+/* Volume render. */
+KERNEL_STRUCT_MEMBER(integrator, int, use_volumes)
+KERNEL_STRUCT_MEMBER(integrator, int, volume_max_steps)
+KERNEL_STRUCT_MEMBER(integrator, float, volume_step_rate)
+/* Shadow catcher. */
+KERNEL_STRUCT_MEMBER(integrator, int, has_shadow_catcher)
+/* Closure filter. */
+KERNEL_STRUCT_MEMBER(integrator, int, filter_closures)
+/* MIS debugging. */
+KERNEL_STRUCT_MEMBER(integrator, int, direct_light_sampling_type)
+/* Padding */
+KERNEL_STRUCT_MEMBER(integrator, int, pad1)
+KERNEL_STRUCT_END(KernelIntegrator)
+
+/* SVM. For shader specialization. */
+
+KERNEL_STRUCT_BEGIN(KernelSVMUsage, svm_usage)
+#define SHADER_NODE_TYPE(type) KERNEL_STRUCT_MEMBER(svm_usage, int, type)
+#include "kernel/svm/node_types_template.h"
+KERNEL_STRUCT_END(KernelSVMUsage)
+
+#undef KERNEL_STRUCT_BEGIN
+#undef KERNEL_STRUCT_MEMBER
+#undef KERNEL_STRUCT_END
diff --git a/intern/cycles/kernel/device/gpu/kernel.h b/intern/cycles/kernel/device/gpu/kernel.h
index b9a44ccad02..e1ab802aa80 100644
--- a/intern/cycles/kernel/device/gpu/kernel.h
+++ b/intern/cycles/kernel/device/gpu/kernel.h
@@ -246,7 +246,7 @@ ccl_gpu_kernel(GPU_KERNEL_BLOCK_NUM_THREADS, GPU_KERNEL_MAX_REGISTERS)
 ccl_gpu_kernel_postfix
 
 #if defined(__KERNEL_METAL_APPLE__) && defined(__METALRT__)
-constant int __dummy_constant [[function_constant(0)]];
+constant int __dummy_constant [[function_constant(Kernel_DummyConstant)]];
 #endif
 
 ccl_gpu_kernel(GPU_KERNEL_BLOCK_NUM_THREADS, GPU_KERNEL_MAX_REGISTERS)
diff --git a/intern/cycles/kernel/device/metal/function_constants.h b/intern/cycles/kernel/device/metal/function_constants.h
new file mode 100644
index 00000000000..3adf390c7f6
--- /dev/null
+++ b/intern/cycles/kernel/device/metal/function_constants.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2021-2022 Blender Foundation */
+
+enum {
+  Kernel_DummyConstant,
+#define KERNEL_STRUCT_MEMBER(parent, type, name) KernelData_##parent##_##name,
+#include "kernel/data_template.h"
+};
+
+#ifdef __KERNEL_METAL__
+#  define KERNEL_STRUCT_MEMBER(parent, type, name) \
+    constant type kernel_data_##parent##_##name \
+        [[function_constant(KernelData_##parent##_##name)]];
+#  include "kernel/data_template.h"
+#endif
diff --git a/intern/cycles/kernel/device/metal/kernel.metal b/intern/cycles/kernel/device/metal/kernel.metal
index 3c31dc3354c..764c26dbe8f 100644
--- a/intern/cycles/kernel/device/metal/kernel.metal
+++ b/intern/cycles/kernel/device/metal/kernel.metal
@@ -5,6 +5,7 @@
 
 #include "kernel/device/metal/compat.h"
 #include "kernel/device/metal/globals.h"
+#include "kernel/device/metal/function_constants.h"
 #include "kernel/device/gpu/kernel.h"
 
 /* MetalRT intersection handlers */
@@ -409,6 +410,7 @@ void metalrt_intersection_curve(constant KernelParamsMetal &launch_params_metal,
                                 const float3 ray_origin,
                                 const float3 ray_direction,
                                 float time,
+                                const float ray_tmin,
                                 const float ray_tmax,
                                 thread BoundingBoxIntersectionResult &result)
 {
@@ -433,7 +435,7 @@ void metalrt_intersection_curve(constant KernelParamsMetal &launch_params_metal,
     isect.t *= len;
 
   MetalKernelContext context(launch_params_metal);
-  if (context.curve_intersect(NULL, &isect, P, dir, isect.t, object, prim, time, type)) {
+  if (context.curve_intersect(NULL, &isect, P, dir, ray_tmin, isect.t, object, prim, time, type)) {
     result = metalrt_visibility_test<BoundingBoxIntersectionResult, METALRT_HIT_BOUNDING_BOX>(
                   launch_params_metal, payload, object, prim, isect.u);
     if (result.accept) {
@@ -455,6 +457,7 @@ void metalrt_intersection_curve_shadow(constant KernelParamsMetal &launch_params
                                        const float3 ray_origin,
                                        const float3 ray_direction,
                                        float time,
+                                       const float ray_tmin,
                                        const float ray_tmax,
                                        thread BoundingBoxIntersectionResult &result)
 {
@@ -474,7 +477,7 @@ void metalrt_intersection_curve_shadow(constant KernelParamsMetal &launch_params
     isect.t *= len;
 
   MetalKernelContext context(launch_params_metal);
-  if (context.curve_intersect(NULL, &isect, P, dir, isect.t, object, prim, time, type)) {
+  if (context.curve_intersect(NULL, &isect, P, dir, ray_tmin, isect.t, object, prim, time, type)) {
     result.continue_search = metalrt_shadow_all_hit<METALRT_HIT_BOUNDING_BOX>(
                 launch_params_metal, payload, object, prim, float2(isect.u, isect.v), ray_tmax);
     result.accept = !result.continue_search;
@@ -493,6 +496,7 @@ __intersection__curve_ribbon(constant KernelParamsMetal &launch_params_metal [[b
                              const uint primitive_id [[primitive_id]],
                              const float3 ray_origin [[origin]],
                              const float3 ray_direction [[direction]],
+                             const float ray_tmin [[min_distance]],
                              const float ray_tmax [[max_distance]])
 {
   uint prim = primitive_id + kernel_data_fetch(object_prim_offset, object);
@@ -510,7 +514,7 @@ __intersection__curve_ribbon(constant KernelParamsMetal &launch_params_metal [[b
 #  else
                                0.0f,
 #  endif
-                               ray_tmax, result);
+                               ray_tmin, ray_tmax, result);
   }
 
   return result;
@@ -524,6 +528,7 @@ __intersection__curve_ribbon_shadow(constant KernelParamsMetal &launch_params_me
                                     const uint primitive_id [[primitive_id]],
                                     const float3 ray_origin [[origin]],
                                     const float3 ray_direction [[direction]],
+                                    const float ray_tmin [[min_distance]],
                                     const float ray_tmax [[max_distance]])
 {
   uint prim = primitive_id + kernel_data_fetch(object_prim_offset, object);
@@ -541,7 +546,7 @@ __intersection__curve_ribbon_shadow(constant KernelParamsMetal &launch_params_me
 #  else
                                0.0f,
 #  endif
-                               ray_tmax, result);
+                               ray_tmin, ray_tmax, result);
   }
 
   return result;
@@ -555,6 +560,7 @@ __intersection__curve_all(constant KernelParamsMetal &launch_params_metal [[buff
                           const uint primitive_id [[primitive_id]],
                           const float3 ray_origin [[origin]],
                           const float3 ray_direction [[direction]],
+                          const float ray_tmin [[min_distance]],
                           const float ray_tmax [[max_distance]])
 {
   uint prim = primitive_id + kernel_data_fetch(object_prim_offset, object);
@@ -570,7 +576,7 @@ __intersection__curve_all(constant KernelParamsMetal &launch_params_metal [[buff
 #  else
                              0.0f,
 #  endif
-                             ray_tmax, result);
+                             ray_tmin, ray_tmax, result);
 
   return result;
 }
@@ -583,6 +589,7 @@ __intersection__curve_all_shadow(constant KernelParamsMetal &launch_params_metal
                                  const uint primitive_id [[primitive_id]],
                                  const float3 ray_origin [[origin]],
                                  const float3 ray_direction [[direction]],
+                                 const float ray_tmin [[min_distance]],
                                  const float ray_tmax [[max_distance]])
 {
   uint prim = primitive_id + kernel_data_fetch(object_prim_offset, object);
@@ -599,7 +606,7 @@ __intersection__curve_all_shadow(constant KernelParamsMetal &launch_params_metal
 #  else
                              0.0f,
 #  endif
-                             ray_tmax, result);
+                             ray_tmin, ray_tmax, result);
 
   return result;
 }
@@ -615,6 +622,7 @@ void metalrt_intersection_point(constant KernelParamsMetal &launch_params_metal,
                                 const float3 ray_origin,
                                 const float3 ray_direction,
                                 float time,
+                                const float ray_tmin,
                                 const float ray_tmax,
                                 thread BoundingBoxIntersectionResult &result)
 {
@@ -639,7 +647,7 @@ void metalrt_intersection_point(constant KernelParamsMetal &launch_params_metal,
     isect.t *= len;
 
   MetalKernelContext context(launch_params_metal);
-  if (context.point_intersect(NULL, &isect, P, dir, isect.t, object, prim, time, type)) {
+  if (context.point_intersect(NULL, &isect, P, dir, ray_tmin, isect.t, object, prim, time, type)) {
     result = metalrt_visibility_test<BoundingBoxIntersectionResult, METALRT_HIT_BOUNDING_BOX>(
                   launch_params_metal, payload, object, prim, isect.u);
     if (result.accept) {
@@ -661,6 +669,7 @@ void metalrt_intersection_point_shadow(constant KernelParamsMetal &launch_params
                                        const float3 ray_origin,
                                        const float3 ray_direction,
                                        float time,
+                                       const float ray_tmin,
                                        const float ray_tmax,
                                        thread BoundingBoxIntersectionResult &result)
 {
@@ -680,7 +689,7 @@ void metalrt_intersection_point_shadow(constant KernelParamsMetal &launch_params
     isect.t *= len;
 
   MetalKernelContext context(launch_params_metal);
-  if (context.point_intersect(NULL, &isect, P, dir, isect.t, object, prim, time, type)) {
+  if (context.point_intersect(NULL, &isect, P, dir, ray_tmin, isect.t, object, prim, time, type)) {
     result.continue_search = metalrt_shadow_all_hit<METALRT_HIT_BOUNDING_BOX>(
                 launch_params_metal, payload, object, prim, float2(isect.u, isect.v), ray_tmax);
     result.accept = !result.continue_search;
@@ -699,6 +708,7 @@ __intersection__point(constant KernelParamsMetal &launch_params_metal [[buffer(1
                              const uint primitive_id [[primitive_id]],
                              const float3 ray_origin [[origin]],
                              const float3 ray_direction [[direction]],
+                             const float ray_tmin [[min_distance]],
                              const float ray_tmax [[max_distance]])
 {
   const uint prim = primitive_id + kernel_data_fetch(object_prim_offset, object);
@@ -715,7 +725,7 @@ __intersection__point(constant KernelParamsMetal &launch_params_metal [[buffer(1
 #  else
                              0.0f,
 #  endif
-                             ray_tmax, result);
+                             ray_tmin, ray_tmax, result);
 
   return result;
 }
@@ -728,6 +738,7 @@ __intersection__point_shadow(constant KernelParamsMetal &launch_params_metal [[b
                                     const uint primitive_id [[primitive_id]],
                                     const float3 ray_origin [[origin]],
                                     const float3 ray_direction [[direction]],
+                                    const float ray_tmin [[min_distance]],
                                     const float ray_tmax [[max_distance]])
 {
   const uint prim = primitive_id + kernel_data_fetch(object_prim_offset, object);
@@ -744,7 +755,7 @@ __intersection__point_shadow(constant KernelParamsMetal &launch_params_metal [[b
 #  else
                              0.0f,
 #  endif
-                             ray_tmax, result);
+                             ray_tmin, ray_tmax, result);
 
   return result;
 }
diff --git a/intern/cycles/kernel/device/oneapi/kernel.cpp b/intern/cycles/kernel/device/oneapi/kernel.cpp
index 82910d72105..300e201600c 100644
--- a/intern/cycles/kernel/device/oneapi/kernel.cpp
+++ b/intern/cycles/kernel/device/oneapi/kernel.cpp
@@ -670,10 +670,7 @@ bool oneapi_enqueue_kernel(KernelContext *kernel_context,
 }
 
 static const int lowest_supported_driver_version_win = 1011660;
-/* TODO: once Linux JIT compilation crash from CentOS generated spv is fixed, adjust version below.
- * Until then, set CYCLES_ONEAPI_ALL_DEVICES environment variable to avoid getting it filtered out.
- */
-static const int lowest_supported_driver_version_neo = 28000;
+static const int lowest_supported_driver_version_neo = 23570;
 
 static int parse_driver_build_version(const sycl::device &device)
 {
diff --git a/intern/cycles/kernel/device/optix/kernel.cu b/intern/cycles/kernel/device/optix/kernel.cu
index 949bf41d171..510f7cca5d6 100644
--- a/intern/cycles/kernel/device/optix/kernel.cu
+++ b/intern/cycles/kernel/device/optix/kernel.cu
@@ -51,32 +51,36 @@ ccl_device_forceinline int get_object_id()
 extern "C" __global__ void __raygen__kernel_optix_integrator_intersect_closest()
 {
   const int global_index = optixGetLaunchIndex().x;
-  const int path_index = (kernel_params.path_index_array) ? kernel_params.path_index_array[global_index] :
-                                                       global_index;
+  const int path_index = (kernel_params.path_index_array) ?
+                             kernel_params.path_index_array[global_index] :
+                             global_index;
   integrator_intersect_closest(nullptr, path_index, kernel_params.render_buffer);
 }
 
 extern "C" __global__ void __raygen__kernel_optix_integrator_intersect_shadow()
 {
   const int global_index = optixGetLaunchIndex().x;
-  const int path_index = (kernel_params.path_index_array) ? kernel_params.path_index_array[global_index] :
-                                                       global_index;
+  const int path_index = (kernel_params.path_index_array) ?
+                             kernel_params.path_index_array[global_index] :
+                             global_index;
   integrator_intersect_shadow(nullptr, path_index);
 }
 
 extern "C" __global__ void __raygen__kernel_optix_integrator_intersect_subsurface()
 {
   const int global_index = optixGetLaunchIndex().x;
-  const int path_index = (kernel_params.path_index_array) ? kernel_params.path_index_array[global_index] :
-                                                       global_index;
+  const int path_index = (kernel_params.path_index_array) ?
+                             kernel_params.path_index_array[global_index] :
+                             global_index;
   integrator_intersect_subsurface(nullptr, path_index);
 }
 
 extern "C" __global__ void __raygen__kernel_optix_integrator_intersect_volume_stack()
 {
   const int global_index = optixGetLaunchIndex().x;
-  const int path_index = (kernel_params.path_index_array) ? kernel_params.path_index_array[global_index] :
-                                                       global_index;
+  const int path_index = (kernel_params.path_index_array) ?
+                             kernel_params.path_index_array[global_index] :
+                             global_index;
   integrator_intersect_volume_stack(nullptr, path_index);
 }
 
@@ -408,6 +412,7 @@ ccl_device_inline void optix_intersection_curve(const int prim, const int type)
 
   float3 P = optixGetObjectRayOrigin();
   float3 dir = optixGetObjectRayDirection();
+  float tmin = optixGetRayTmin();
 
   /* The direction is not normalized by default, but the curve intersection routine expects that */
   float len;
@@ -425,7 +430,7 @@ ccl_device_inline void optix_intersection_curve(const int prim, const int type)
   if (isect.t != FLT_MAX)
     isect.t *= len;
 
-  if (curve_intersect(NULL, &isect, P, dir, isect.t, object, prim, time, type)) {
+  if (curve_intersect(NULL, &isect, P, dir, tmin, isect.t, object, prim, time, type)) {
     static_assert(PRIMITIVE_ALL < 128, "Values >= 128 are reserved for OptiX internal use");
     optixReportIntersection(isect.t / len,
                             type & PRIMITIVE_ALL,
@@ -462,6 +467,7 @@ extern "C" __global__ void __intersection__point()
 
   float3 P = optixGetObjectRayOrigin();
   float3 dir = optixGetObjectRayDirection();
+  float tmin = optixGetRayTmin();
 
   /* The direction is not normalized by default, the point intersection routine expects that. */
   float len;
@@ -480,7 +486,7 @@ extern "C" __global__ void __intersection__point()
     isect.t *= len;
   }
 
-  if (point_intersect(NULL, &isect, P, dir, isect.t, object, prim, time, type)) {
+  if (point_intersect(NULL, &isect, P, dir, tmin, isect.t, object, prim, time, type)) {
     static_assert(PRIMITIVE_ALL < 128, "Values >= 128 are reserved for OptiX internal use");
     optixReportIntersection(isect.t / len, type & PRIMITIVE_ALL);
   }
diff --git a/intern/cycles/kernel/geom/curve_intersect.h b/intern/cycles/kernel/geom/curve_intersect.h
index 001bec01749..9770105dd81 100644
--- a/intern/cycles/kernel/geom/curve_intersect.h
+++ b/intern/cycles/kernel/geom/curve_intersect.h
@@ -156,7 +156,8 @@ ccl_device_inline float2 half_plane_intersect(const float3 P, const float3 N, co
 }
 
 ccl_device bool curve_intersect_iterative(const float3 ray_dir,
-                                          ccl_private float *ray_tfar,
+                                          const float ray_tmin,
+                                          ccl_private float *ray_tmax,
                                           const float dt,
                                           const float4 curve[4],
                                           float u,
@@ -220,7 +221,7 @@ ccl_device bool curve_intersect_iterative(const float3 ray_dir,
 
     if (fabsf(f) < f_err && fabsf(g) < g_err) {
       t += dt;
-      if (!(0.0f <= t && t <= *ray_tfar)) {
+      if (!(t >= ray_tmin && t <= *ray_tmax)) {
         return false; /* Rejects NaNs */
       }
       if (!(u >= 0.0f && u <= 1.0f)) {
@@ -237,7 +238,7 @@ ccl_device bool curve_intersect_iterative(const float3 ray_dir,
       }
 
       /* Record intersection. */
-      *ray_tfar = t;
+      *ray_tmax = t;
       isect->t = t;
       isect->u = u;
       isect->v = 0.0f;
@@ -250,7 +251,8 @@ ccl_device bool curve_intersect_iterative(const float3 ray_dir,
 
 ccl_device bool curve_intersect_recursive(const float3 ray_orig,
                                           const float3 ray_dir,
-                                          float ray_tfar,
+                                          const float ray_tmin,
+                                          float ray_tmax,
                                           float4 curve[4],
                                           ccl_private Intersection *isect)
 {
@@ -331,7 +333,7 @@ ccl_device bool curve_intersect_recursive(const float3 ray_orig,
       }
 
       /* Intersect with cap-planes. */
-      float2 tp = make_float2(-dt, ray_tfar - dt);
+      float2 tp = make_float2(ray_tmin - dt, ray_tmax - dt);
       tp = make_float2(max(tp.x, tc_outer.x), min(tp.y, tc_outer.y));
       const float2 h0 = half_plane_intersect(
           float4_to_float3(P0), float4_to_float3(dP0du), ray_dir);
@@ -394,19 +396,20 @@ ccl_device bool curve_intersect_recursive(const float3 ray_orig,
                                           CURVE_NUM_BEZIER_SUBDIVISIONS;
         if (depth >= termDepth) {
           found |= curve_intersect_iterative(
-              ray_dir, &ray_tfar, dt, curve, u_outer0, tp0.x, use_backfacing, isect);
+              ray_dir, ray_tmin, &ray_tmax, dt, curve, u_outer0, tp0.x, use_backfacing, isect);
         }
         else {
           recurse = true;
         }
       }
 
-      if (valid1 && (tp1.x + dt <= ray_tfar)) {
+      const float t1 = tp1.x + dt;
+      if (valid1 && (t1 >= ray_tmin && t1 <= ray_tmax)) {
         const int termDepth = unstable1 ? CURVE_NUM_BEZIER_SUBDIVISIONS_UNSTABLE :
                                           CURVE_NUM_BEZIER_SUBDIVISIONS;
         if (depth >= termDepth) {
           found |= curve_intersect_iterative(
-              ray_dir, &ray_tfar, dt, curve, u_outer1, tp1.y, use_backfacing, isect);
+              ray_dir, ray_tmin, &ray_tmax, dt, curve, u_outer1, tp1.y, use_backfacing, isect);
         }
         else {
           recurse = true;
@@ -456,7 +459,8 @@ ccl_device_inline bool cylinder_culling_test(const float2 p1, const float2 p2, c
  * v0,v1,v3 and v2,v3,v1. The edge v1,v2 decides which of the two
  * triangles gets intersected.
  */
-ccl_device_inline bool ribbon_intersect_quad(const float ray_tfar,
+ccl_device_inline bool ribbon_intersect_quad(const float ray_tmin,
+                                             const float ray_tmax,
                                              const float3 quad_v0,
                                              const float3 quad_v1,
                                              const float3 quad_v2,
@@ -497,7 +501,7 @@ ccl_device_inline bool ribbon_intersect_quad(const float ray_tfar,
 
   /* Perform depth test? */
   const float t = rcpDen * dot(v0, Ng);
-  if (!(0.0f <= t && t <= ray_tfar)) {
+  if (!(t >= ray_tmin && t <= ray_tmax)) {
     return false;
   }
 
@@ -534,7 +538,8 @@ ccl_device_inline float4 ribbon_to_ray_space(const float3 ray_space[3],
 
 ccl_device_inline bool ribbon_intersect(const float3 ray_org,
                                         const float3 ray_dir,
-                                        float ray_tfar,
+                                        const float ray_tmin,
+                                        float ray_tmax,
                                         const int N,
                                         float4 curve[4],
                                         ccl_private Intersection *isect)
@@ -582,7 +587,7 @@ ccl_device_inline bool ribbon_intersect(const float3 ray_org,
 
       /* Intersect quad. */
       float vu, vv, vt;
-      bool valid0 = ribbon_intersect_quad(ray_tfar, lp0, lp1, up1, up0, &vu, &vv, &vt);
+      bool valid0 = ribbon_intersect_quad(ray_tmin, ray_tmax, lp0, lp1, up1, up0, &vu, &vv, &vt);
 
       if (valid0) {
         /* ignore self intersections */
@@ -596,7 +601,7 @@ ccl_device_inline bool ribbon_intersect(const float3 ray_org,
           vv = 2.0f * vv - 1.0f;
 
           /* Record intersection. */
-          ray_tfar = vt;
+          ray_tmax = vt;
           isect->t = vt;
           isect->u = u + vu * step_size;
           isect->v = vv;
@@ -616,6 +621,7 @@ ccl_device_forceinline bool curve_intersect(KernelGlobals kg,
                                             ccl_private Intersection *isect,
                                             const float3 P,
                                             const float3 dir,
+                                            const float tmin,
                                             const float tmax,
                                             int object,
                                             int prim,
@@ -645,7 +651,7 @@ ccl_device_forceinline bool curve_intersect(KernelGlobals kg,
   if (type & PRIMITIVE_CURVE_RIBBON) {
     /* todo: adaptive number of subdivisions could help performance here. */
     const int subdivisions = kernel_data.bvh.curve_subdivisions;
-    if (ribbon_intersect(P, dir, tmax, subdivisions, curve, isect)) {
+    if (ribbon_intersect(P, dir, tmin, tmax, subdivisions, curve, isect)) {
       isect->prim = prim;
       isect->object = object;
       isect->type = type;
@@ -655,7 +661,7 @@ ccl_device_forceinline bool curve_intersect(KernelGlobals kg,
     return false;
   }
   else {
-    if (curve_intersect_recursive(P, dir, tmax, curve, isect)) {
+    if (curve_intersect_recursive(P, dir, tmin, tmax, curve, isect)) {
       isect->prim = prim;
       isect->object = object;
       isect->type = type;
diff --git a/intern/cycles/kernel/geom/motion_triangle_intersect.h b/intern/cycles/kernel/geom/motion_triangle_intersect.h
index 6eea5096567..b59c5c43c20 100644
--- a/intern/cycles/kernel/geom/motion_triangle_intersect.h
+++ b/intern/cycles/kernel/geom/motion_triangle_intersect.h
@@ -46,6 +46,7 @@ ccl_device_inline bool motion_triangle_intersect(KernelGlobals kg,
                                                  ccl_private Intersection *isect,
                                                  float3 P,
                                                  float3 dir,
+                                                 float tmin,
                                                  float tmax,
                                                  float time,
                                                  uint visibility,
@@ -58,7 +59,7 @@ ccl_device_inline bool motion_triangle_intersect(KernelGlobals kg,
   motion_triangle_vertices(kg, object, prim, time, verts);
   /* Ray-triangle intersection, unoptimized. */
   float t, u, v;
-  if (ray_triangle_intersect(P, dir, tmax, verts[0], verts[1], verts[2], &u, &v, &t)) {
+  if (ray_triangle_intersect(P, dir, tmin, tmax, verts[0], verts[1], verts[2], &u, &v, &t)) {
 #ifdef __VISIBILITY_FLAG__
     /* Visibility flag test. we do it here under the assumption
      * that most triangles are culled by node flags.
@@ -92,6 +93,7 @@ ccl_device_inline bool motion_triangle_intersect_local(KernelGlobals kg,
                                                        int object,
                                                        int prim,
                                                        int prim_addr,
+                                                       float tmin,
                                                        float tmax,
                                                        ccl_private uint *lcg_state,
                                                        int max_hits)
@@ -101,7 +103,7 @@ ccl_device_inline bool motion_triangle_intersect_local(KernelGlobals kg,
   motion_triangle_vertices(kg, object, prim, time, verts);
   /* Ray-triangle intersection, unoptimized. */
   float t, u, v;
-  if (!ray_triangle_intersect(P, dir, tmax, verts[0], verts[1], verts[2], &u, &v, &t)) {
+  if (!ray_triangle_intersect(P, dir, tmin, tmax, verts[0], verts[1], verts[2], &u, &v, &t)) {
     return false;
   }
 
diff --git a/intern/cycles/kernel/geom/point_intersect.h b/intern/cycles/kernel/geom/point_intersect.h
index dfd9d9a015b..ee5a564947b 100644
--- a/intern/cycles/kernel/geom/point_intersect.h
+++ b/intern/cycles/kernel/geom/point_intersect.h
@@ -9,8 +9,12 @@ CCL_NAMESPACE_BEGIN
 
 #ifdef __POINTCLOUD__
 
-ccl_device_forceinline bool point_intersect_test(
-    const float4 point, const float3 P, const float3 dir, const float tmax, ccl_private float *t)
+ccl_device_forceinline bool point_intersect_test(const float4 point,
+                                                 const float3 P,
+                                                 const float3 dir,
+                                                 const float tmin,
+                                                 const float tmax,
+                                                 ccl_private float *t)
 {
   const float3 center = float4_to_float3(point);
   const float radius = point.w;
@@ -28,12 +32,12 @@ ccl_device_forceinline bool point_intersect_test(
 
   const float td = sqrt((r2 - l2) * rd2);
   const float t_front = projC0 - td;
-  const bool valid_front = (0.0f <= t_front) & (t_front <= tmax);
+  const bool valid_front = (tmin <= t_front) & (t_front <= tmax);
 
   /* Always back-face culling for now. */
 #  if 0
   const float t_back = projC0 + td;
-  const bool valid_back = (0.0f <= t_back) & (t_back <= tmax);
+  const bool valid_back = (tmin <= t_back) & (t_back <= tmax);
 
   /* check if there is a first hit */
   const bool valid_first = valid_front | valid_back;
@@ -56,6 +60,7 @@ ccl_device_forceinline bool point_intersect(KernelGlobals kg,
                                             ccl_private Intersection *isect,
                                             const float3 P,
                                             const float3 dir,
+                                            const float tmin,
                                             const float tmax,
                                             const int object,
                                             const int prim,
@@ -65,7 +70,7 @@ ccl_device_forceinline bool point_intersect(KernelGlobals kg,
   const float4 point = (type & PRIMITIVE_MOTION) ? motion_point(kg, object, prim, time) :
                                                    kernel_data_fetch(points, prim);
 
-  if (!point_intersect_test(point, P, dir, tmax, &isect->t)) {
+  if (!point_intersect_test(point, P, dir, tmin, tmax, &isect->t)) {
     return false;
   }
 
diff --git a/intern/cycles/kernel/geom/shader_data.h b/intern/cycles/kernel/geom/shader_data.h
index e5dbeac5e66..99b9289cb4a 100644
--- a/intern/cycles/kernel/geom/shader_data.h
+++ b/intern/cycles/kernel/geom/shader_data.h
@@ -407,7 +407,7 @@ ccl_device_inline void shader_setup_from_volume(KernelGlobals kg,
 {
 
   /* vectors */
-  sd->P = ray->P;
+  sd->P = ray->P + ray->D * ray->tmin;
   sd->N = -ray->D;
   sd->Ng = -ray->D;
   sd->I = -ray->D;
@@ -441,7 +441,6 @@ ccl_device_inline void shader_setup_from_volume(KernelGlobals kg,
 
   /* for NDC coordinates */
   sd->ray_P = ray->P;
-  sd->ray_dP = ray->dP;
 }
 #endif /* __VOLUME__ */
 
diff --git a/intern/cycles/kernel/geom/triangle_intersect.h b/intern/cycles/kernel/geom/triangle_intersect.h
index 0c76de9ccc7..f968e537cfa 100644
--- a/intern/cycles/kernel/geom/triangle_intersect.h
+++ b/intern/cycles/kernel/geom/triangle_intersect.h
@@ -17,6 +17,7 @@ ccl_device_inline bool triangle_intersect(KernelGlobals kg,
                                           ccl_private Intersection *isect,
                                           float3 P,
                                           float3 dir,
+                                          float tmin,
                                           float tmax,
                                           uint visibility,
                                           int object,
@@ -28,7 +29,7 @@ ccl_device_inline bool triangle_intersect(KernelGlobals kg,
                tri_b = kernel_data_fetch(tri_verts, tri_vindex + 1),
                tri_c = kernel_data_fetch(tri_verts, tri_vindex + 2);
   float t, u, v;
-  if (ray_triangle_intersect(P, dir, tmax, tri_a, tri_b, tri_c, &u, &v, &t)) {
+  if (ray_triangle_intersect(P, dir, tmin, tmax, tri_a, tri_b, tri_c, &u, &v, &t)) {
 #ifdef __VISIBILITY_FLAG__
     /* Visibility flag test. we do it here under the assumption
      * that most triangles are culled by node flags.
@@ -62,6 +63,7 @@ ccl_device_inline bool triangle_intersect_local(KernelGlobals kg,
                                                 int object,
                                                 int prim,
                                                 int prim_addr,
+                                                float tmin,
                                                 float tmax,
                                                 ccl_private uint *lcg_state,
                                                 int max_hits)
@@ -71,7 +73,7 @@ ccl_device_inline bool triangle_intersect_local(KernelGlobals kg,
                tri_b = kernel_data_fetch(tri_verts, tri_vindex + 1),
                tri_c = kernel_data_fetch(tri_verts, tri_vindex + 2);
   float t, u, v;
-  if (!ray_triangle_intersect(P, dir, tmax, tri_a, tri_b, tri_c, &u, &v, &t)) {
+  if (!ray_triangle_intersect(P, dir, tmin, tmax, tri_a, tri_b, tri_c, &u, &v, &t)) {
     return false;
   }
 
diff --git a/intern/cycles/kernel/integrator/init_from_bake.h b/intern/cycles/kernel/integrator/init_from_bake.h
index c63684d58e6..bf3f41b52b9 100644
--- a/intern/cycles/kernel/integrator/init_from_bake.h
+++ b/intern/cycles/kernel/integrator/init_from_bake.h
@@ -174,14 +174,15 @@ ccl_device bool integrator_init_from_bake(KernelGlobals kg,
     Ray ray ccl_optional_struct_init;
     ray.P = zero_float3();
     ray.D = normalize(P);
-    ray.t = FLT_MAX;
+    ray.tmin = 0.0f;
+    ray.tmax = FLT_MAX;
     ray.time = 0.5f;
     ray.dP = differential_zero_compact();
     ray.dD = differential_zero_compact();
     integrator_state_write_ray(kg, state, &ray);
 
     /* Setup next kernel to execute. */
-    INTEGRATOR_PATH_INIT(DEVICE_KERNEL_INTEGRATOR_SHADE_BACKGROUND);
+    integrator_path_init(kg, state, DEVICE_KERNEL_INTEGRATOR_SHADE_BACKGROUND);
   }
   else {
     /* Surface baking. */
@@ -210,7 +211,8 @@ ccl_device bool integrator_init_from_bake(KernelGlobals kg,
     Ray ray ccl_optional_struct_init;
     ray.P = P + N;
     ray.D = -N;
-    ray.t = FLT_MAX;
+    ray.tmin = 0.0f;
+    ray.tmax = FLT_MAX;
     ray.time = 0.5f;
 
     /* Setup differentials. */
@@ -247,13 +249,15 @@ ccl_device bool integrator_init_from_bake(KernelGlobals kg,
     const bool use_raytrace_kernel = (shader_flags & SD_HAS_RAYTRACE);
 
     if (use_caustics) {
-      INTEGRATOR_PATH_INIT_SORTED(DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_MNEE, shader_index);
+      integrator_path_init_sorted(
+          kg, state, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_MNEE, shader_index);
     }
     else if (use_raytrace_kernel) {
-      INTEGRATOR_PATH_INIT_SORTED(DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE, shader_index);
+      integrator_path_init_sorted(
+          kg, state, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE, shader_index);
     }
     else {
-      INTEGRATOR_PATH_INIT_SORTED(DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE, shader_index);
+      integrator_path_init_sorted(kg, state, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE, shader_index);
     }
   }
 
diff --git a/intern/cycles/kernel/integrator/init_from_camera.h b/intern/cycles/kernel/integrator/init_from_camera.h
index 9fe27cdda9a..e89ab3991c7 100644
--- a/intern/cycles/kernel/integrator/init_from_camera.h
+++ b/intern/cycles/kernel/integrator/init_from_camera.h
@@ -86,7 +86,7 @@ ccl_device bool integrator_init_from_camera(KernelGlobals kg,
     /* Generate camera ray. */
     Ray ray;
     integrate_camera_sample(kg, sample, x, y, rng_hash, &ray);
-    if (ray.t == 0.0f) {
+    if (ray.tmax == 0.0f) {
       return true;
     }
 
@@ -100,10 +100,10 @@ ccl_device bool integrator_init_from_camera(KernelGlobals kg,
   /* Continue with intersect_closest kernel, optionally initializing volume
    * stack before that if the camera may be inside a volume. */
   if (kernel_data.cam.is_inside_volume) {
-    INTEGRATOR_PATH_INIT(DEVICE_KERNEL_INTEGRATOR_INTERSECT_VOLUME_STACK);
+    integrator_path_init(kg, state, DEVICE_KERNEL_INTEGRATOR_INTERSECT_VOLUME_STACK);
   }
   else {
-    INTEGRATOR_PATH_INIT(DEVICE_KERNEL_INTEGRATOR_INTERSECT_CLOSEST);
+    integrator_path_init(kg, state, DEVICE_KERNEL_INTEGRATOR_INTERSECT_CLOSEST);
   }
 
   return true;
diff --git a/intern/cycles/kernel/integrator/intersect_closest.h b/intern/cycles/kernel/integrator/intersect_closest.h
index 621aa05f46b..60299f2cb2f 100644
--- a/intern/cycles/kernel/integrator/intersect_closest.h
+++ b/intern/cycles/kernel/integrator/intersect_closest.h
@@ -109,14 +109,14 @@ ccl_device_forceinline void integrator_split_shadow_catcher(
     /* If using background pass, schedule background shading kernel so that we have a background
      * to alpha-over on. The background kernel will then continue the path afterwards. */
     INTEGRATOR_STATE_WRITE(state, path, flag) |= PATH_RAY_SHADOW_CATCHER_BACKGROUND;
-    INTEGRATOR_PATH_INIT(DEVICE_KERNEL_INTEGRATOR_SHADE_BACKGROUND);
+    integrator_path_init(kg, state, DEVICE_KERNEL_INTEGRATOR_SHADE_BACKGROUND);
     return;
   }
 
   if (!integrator_state_volume_stack_is_empty(kg, state)) {
     /* Volume stack is not empty. Re-init the volume stack to exclude any non-shadow catcher
      * objects from it, and then continue shading volume and shadow catcher surface after. */
-    INTEGRATOR_PATH_INIT(DEVICE_KERNEL_INTEGRATOR_INTERSECT_VOLUME_STACK);
+    integrator_path_init(kg, state, DEVICE_KERNEL_INTEGRATOR_INTERSECT_VOLUME_STACK);
     return;
   }
 
@@ -128,18 +128,19 @@ ccl_device_forceinline void integrator_split_shadow_catcher(
   const bool use_raytrace_kernel = (flags & SD_HAS_RAYTRACE);
 
   if (use_caustics) {
-    INTEGRATOR_PATH_INIT_SORTED(DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_MNEE, shader);
+    integrator_path_init_sorted(kg, state, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_MNEE, shader);
   }
   else if (use_raytrace_kernel) {
-    INTEGRATOR_PATH_INIT_SORTED(DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE, shader);
+    integrator_path_init_sorted(
+        kg, state, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE, shader);
   }
   else {
-    INTEGRATOR_PATH_INIT_SORTED(DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE, shader);
+    integrator_path_init_sorted(kg, state, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE, shader);
   }
 }
 
 /* Schedule next kernel to be executed after updating volume stack for shadow catcher. */
-template<uint32_t current_kernel>
+template<DeviceKernel current_kernel>
 ccl_device_forceinline void integrator_intersect_next_kernel_after_shadow_catcher_volume(
     KernelGlobals kg, IntegratorState state)
 {
@@ -156,20 +157,21 @@ ccl_device_forceinline void integrator_intersect_next_kernel_after_shadow_catche
   const bool use_raytrace_kernel = (flags & SD_HAS_RAYTRACE);
 
   if (use_caustics) {
-    INTEGRATOR_PATH_NEXT_SORTED(
-        current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_MNEE, shader);
+    integrator_path_next_sorted(
+        kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_MNEE, shader);
   }
   else if (use_raytrace_kernel) {
-    INTEGRATOR_PATH_NEXT_SORTED(
-        current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE, shader);
+    integrator_path_next_sorted(
+        kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE, shader);
   }
   else {
-    INTEGRATOR_PATH_NEXT_SORTED(current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE, shader);
+    integrator_path_next_sorted(
+        kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE, shader);
   }
 }
 
 /* Schedule next kernel to be executed after executing background shader for shadow catcher. */
-template<uint32_t current_kernel>
+template<DeviceKernel current_kernel>
 ccl_device_forceinline void integrator_intersect_next_kernel_after_shadow_catcher_background(
     KernelGlobals kg, IntegratorState state)
 {
@@ -177,7 +179,8 @@ ccl_device_forceinline void integrator_intersect_next_kernel_after_shadow_catche
   if (!integrator_state_volume_stack_is_empty(kg, state)) {
     /* Volume stack is not empty. Re-init the volume stack to exclude any non-shadow catcher
      * objects from it, and then continue shading volume and shadow catcher surface after. */
-    INTEGRATOR_PATH_NEXT(current_kernel, DEVICE_KERNEL_INTEGRATOR_INTERSECT_VOLUME_STACK);
+    integrator_path_next(
+        kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_INTERSECT_VOLUME_STACK);
     return;
   }
 
@@ -190,7 +193,7 @@ ccl_device_forceinline void integrator_intersect_next_kernel_after_shadow_catche
  *
  * Note that current_kernel is a template value since making this a variable
  * leads to poor performance with CUDA atomics. */
-template<uint32_t current_kernel>
+template<DeviceKernel current_kernel>
 ccl_device_forceinline void integrator_intersect_next_kernel(
     KernelGlobals kg,
     IntegratorState state,
@@ -206,10 +209,10 @@ ccl_device_forceinline void integrator_intersect_next_kernel(
     const int flags = (hit_surface) ? kernel_data_fetch(shaders, shader).flags : 0;
 
     if (!integrator_intersect_terminate(kg, state, flags)) {
-      INTEGRATOR_PATH_NEXT(current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_VOLUME);
+      integrator_path_next(kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_VOLUME);
     }
     else {
-      INTEGRATOR_PATH_TERMINATE(current_kernel);
+      integrator_path_terminate(kg, state, current_kernel);
     }
     return;
   }
@@ -218,7 +221,7 @@ ccl_device_forceinline void integrator_intersect_next_kernel(
   if (hit) {
     /* Hit a surface, continue with light or surface kernel. */
     if (isect->type & PRIMITIVE_LAMP) {
-      INTEGRATOR_PATH_NEXT(current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_LIGHT);
+      integrator_path_next(kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_LIGHT);
     }
     else {
       /* Hit a surface, continue with surface kernel unless terminated. */
@@ -231,16 +234,16 @@ ccl_device_forceinline void integrator_intersect_next_kernel(
                                   (object_flags & SD_OBJECT_CAUSTICS);
         const bool use_raytrace_kernel = (flags & SD_HAS_RAYTRACE);
         if (use_caustics) {
-          INTEGRATOR_PATH_NEXT_SORTED(
-              current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_MNEE, shader);
+          integrator_path_next_sorted(
+              kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_MNEE, shader);
         }
         else if (use_raytrace_kernel) {
-          INTEGRATOR_PATH_NEXT_SORTED(
-              current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE, shader);
+          integrator_path_next_sorted(
+              kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE, shader);
         }
         else {
-          INTEGRATOR_PATH_NEXT_SORTED(
-              current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE, shader);
+          integrator_path_next_sorted(
+              kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE, shader);
         }
 
 #ifdef __SHADOW_CATCHER__
@@ -249,13 +252,13 @@ ccl_device_forceinline void integrator_intersect_next_kernel(
 #endif
       }
       else {
-        INTEGRATOR_PATH_TERMINATE(current_kernel);
+        integrator_path_terminate(kg, state, current_kernel);
       }
     }
   }
   else {
     /* Nothing hit, continue with background kernel. */
-    INTEGRATOR_PATH_NEXT(current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_BACKGROUND);
+    integrator_path_next(kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_BACKGROUND);
   }
 }
 
@@ -263,7 +266,7 @@ ccl_device_forceinline void integrator_intersect_next_kernel(
  *
  * The logic here matches integrator_intersect_next_kernel, except that
  * volume shading and termination testing have already been done. */
-template<uint32_t current_kernel>
+template<DeviceKernel current_kernel>
 ccl_device_forceinline void integrator_intersect_next_kernel_after_volume(
     KernelGlobals kg,
     IntegratorState state,
@@ -273,7 +276,7 @@ ccl_device_forceinline void integrator_intersect_next_kernel_after_volume(
   if (isect->prim != PRIM_NONE) {
     /* Hit a surface, continue with light or surface kernel. */
     if (isect->type & PRIMITIVE_LAMP) {
-      INTEGRATOR_PATH_NEXT(current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_LIGHT);
+      integrator_path_next(kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_LIGHT);
       return;
     }
     else {
@@ -286,16 +289,16 @@ ccl_device_forceinline void integrator_intersect_next_kernel_after_volume(
       const bool use_raytrace_kernel = (flags & SD_HAS_RAYTRACE);
 
       if (use_caustics) {
-        INTEGRATOR_PATH_NEXT_SORTED(
-            current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_MNEE, shader);
+        integrator_path_next_sorted(
+            kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_MNEE, shader);
       }
       else if (use_raytrace_kernel) {
-        INTEGRATOR_PATH_NEXT_SORTED(
-            current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE, shader);
+        integrator_path_next_sorted(
+            kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE, shader);
       }
       else {
-        INTEGRATOR_PATH_NEXT_SORTED(
-            current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE, shader);
+        integrator_path_next_sorted(
+            kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE, shader);
       }
 
 #ifdef __SHADOW_CATCHER__
@@ -307,7 +310,7 @@ ccl_device_forceinline void integrator_intersect_next_kernel_after_volume(
   }
   else {
     /* Nothing hit, continue with background kernel. */
-    INTEGRATOR_PATH_NEXT(current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_BACKGROUND);
+    integrator_path_next(kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_SHADE_BACKGROUND);
     return;
   }
 }
@@ -321,7 +324,7 @@ ccl_device void integrator_intersect_closest(KernelGlobals kg,
   /* Read ray from integrator state into local memory. */
   Ray ray ccl_optional_struct_init;
   integrator_state_read_ray(kg, state, &ray);
-  kernel_assert(ray.t != 0.0f);
+  kernel_assert(ray.tmax != 0.0f);
 
   const uint visibility = path_state_ray_visibility(state);
   const int last_isect_prim = INTEGRATOR_STATE(state, isect, prim);
@@ -329,12 +332,12 @@ ccl_device void integrator_intersect_closest(KernelGlobals kg,
 
   /* Trick to use short AO rays to approximate indirect light at the end of the path. */
   if (path_state_ao_bounce(kg, state)) {
-    ray.t = kernel_data.integrator.ao_bounces_distance;
+    ray.tmax = kernel_data.integrator.ao_bounces_distance;
 
     if (last_isect_object != OBJECT_NONE) {
       const float object_ao_distance = kernel_data_fetch(objects, last_isect_object).ao_distance;
       if (object_ao_distance != 0.0f) {
-        ray.t = object_ao_distance;
+        ray.tmax = object_ao_distance;
       }
     }
   }
diff --git a/intern/cycles/kernel/integrator/intersect_shadow.h b/intern/cycles/kernel/integrator/intersect_shadow.h
index 3e746998225..1b48b360858 100644
--- a/intern/cycles/kernel/integrator/intersect_shadow.h
+++ b/intern/cycles/kernel/integrator/intersect_shadow.h
@@ -162,7 +162,7 @@ ccl_device void integrator_intersect_shadow(KernelGlobals kg, IntegratorShadowSt
 
   if (opaque_hit) {
     /* Hit an opaque surface, shadow path ends here. */
-    INTEGRATOR_SHADOW_PATH_TERMINATE(DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW);
+    integrator_shadow_path_terminate(kg, state, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW);
     return;
   }
   else {
@@ -171,7 +171,9 @@ ccl_device void integrator_intersect_shadow(KernelGlobals kg, IntegratorShadowSt
      *
      * TODO: could also write to render buffer directly if no transparent shadows?
      * Could save a kernel execution for the common case. */
-    INTEGRATOR_SHADOW_PATH_NEXT(DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW,
+    integrator_shadow_path_next(kg,
+                                state,
+                                DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW,
                                 DEVICE_KERNEL_INTEGRATOR_SHADE_SHADOW);
     return;
   }
diff --git a/intern/cycles/kernel/integrator/intersect_subsurface.h b/intern/cycles/kernel/integrator/intersect_subsurface.h
index 0a2c4ad680d..f439d6905a0 100644
--- a/intern/cycles/kernel/integrator/intersect_subsurface.h
+++ b/intern/cycles/kernel/integrator/intersect_subsurface.h
@@ -17,7 +17,7 @@ ccl_device void integrator_intersect_subsurface(KernelGlobals kg, IntegratorStat
   }
 #endif
 
-  INTEGRATOR_PATH_TERMINATE(DEVICE_KERNEL_INTEGRATOR_INTERSECT_SUBSURFACE);
+  integrator_path_terminate(kg, state, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SUBSURFACE);
 }
 
 CCL_NAMESPACE_END
diff --git a/intern/cycles/kernel/integrator/intersect_volume_stack.h b/intern/cycles/kernel/integrator/intersect_volume_stack.h
index 49ef01dc870..9ba4a0a3964 100644
--- a/intern/cycles/kernel/integrator/intersect_volume_stack.h
+++ b/intern/cycles/kernel/integrator/intersect_volume_stack.h
@@ -24,7 +24,8 @@ ccl_device void integrator_volume_stack_update_for_subsurface(KernelGlobals kg,
 
   Ray volume_ray ccl_optional_struct_init;
   volume_ray.P = from_P;
-  volume_ray.D = normalize_len(to_P - from_P, &volume_ray.t);
+  volume_ray.D = normalize_len(to_P - from_P, &volume_ray.tmax);
+  volume_ray.tmin = 0.0f;
   volume_ray.self.object = INTEGRATOR_STATE(state, isect, object);
   volume_ray.self.prim = INTEGRATOR_STATE(state, isect, prim);
   volume_ray.self.light_object = OBJECT_NONE;
@@ -58,12 +59,9 @@ ccl_device void integrator_volume_stack_update_for_subsurface(KernelGlobals kg,
     volume_stack_enter_exit(kg, state, stack_sd);
 
     /* Move ray forward. */
-    volume_ray.P = stack_sd->P;
+    volume_ray.tmin = intersection_t_offset(isect.t);
     volume_ray.self.object = isect.object;
     volume_ray.self.prim = isect.prim;
-    if (volume_ray.t != FLT_MAX) {
-      volume_ray.D = normalize_len(to_P - volume_ray.P, &volume_ray.t);
-    }
     ++step;
   }
 #endif
@@ -82,7 +80,8 @@ ccl_device void integrator_volume_stack_init(KernelGlobals kg, IntegratorState s
   /* Trace ray in random direction. Any direction works, Z up is a guess to get the
    * fewest hits. */
   volume_ray.D = make_float3(0.0f, 0.0f, 1.0f);
-  volume_ray.t = FLT_MAX;
+  volume_ray.tmin = 0.0f;
+  volume_ray.tmax = FLT_MAX;
   volume_ray.self.object = OBJECT_NONE;
   volume_ray.self.prim = PRIM_NONE;
   volume_ray.self.light_object = OBJECT_NONE;
@@ -199,7 +198,7 @@ ccl_device void integrator_volume_stack_init(KernelGlobals kg, IntegratorState s
     }
 
     /* Move ray forward. */
-    volume_ray.P = stack_sd->P;
+    volume_ray.tmin = intersection_t_offset(isect.t);
     volume_ray.self.object = isect.object;
     volume_ray.self.prim = isect.prim;
     ++step;
@@ -222,7 +221,9 @@ ccl_device void integrator_intersect_volume_stack(KernelGlobals kg, IntegratorSt
   }
   else {
     /* Volume stack init for camera rays, continue with intersection of camera ray. */
-    INTEGRATOR_PATH_NEXT(DEVICE_KERNEL_INTEGRATOR_INTERSECT_VOLUME_STACK,
+    integrator_path_next(kg,
+                         state,
+                         DEVICE_KERNEL_INTEGRATOR_INTERSECT_VOLUME_STACK,
                          DEVICE_KERNEL_INTEGRATOR_INTERSECT_CLOSEST);
   }
 }
diff --git a/intern/cycles/kernel/integrator/mnee.h b/intern/cycles/kernel/integrator/mnee.h
index 67505b9b612..7a6f866b1a0 100644
--- a/intern/cycles/kernel/integrator/mnee.h
+++ b/intern/cycles/kernel/integrator/mnee.h
@@ -137,8 +137,14 @@ ccl_device_forceinline void mnee_update_light_sample(KernelGlobals kg,
     }
   }
   else if (ls->type == LIGHT_AREA) {
+    float invarea = fabsf(klight->area.invarea);
     ls->D = normalize_len(ls->P - P, &ls->t);
-    ls->pdf = fabsf(klight->area.invarea);
+    ls->pdf = invarea;
+    if (klight->area.tan_spread > 0.f) {
+      ls->eval_fac = 0.25f * invarea;
+      ls->eval_fac *= light_spread_attenuation(
+          ls->D, ls->Ng, klight->area.tan_spread, klight->area.normalize_spread);
+    }
   }
 
   ls->pdf *= kernel_data.integrator.pdf_lights;
@@ -436,6 +442,7 @@ ccl_device_forceinline bool mnee_newton_solver(KernelGlobals kg,
   projection_ray.self.light_prim = PRIM_NONE;
   projection_ray.dP = differential_make_compact(sd->dP);
   projection_ray.dD = differential_zero_compact();
+  projection_ray.tmin = 0.0f;
   projection_ray.time = sd->time;
   Intersection projection_isect;
 
@@ -499,8 +506,8 @@ ccl_device_forceinline bool mnee_newton_solver(KernelGlobals kg,
         projection_ray.self.prim = pv.prim;
         projection_ray.P = pv.p;
       }
-      projection_ray.D = normalize_len(tentative_p - projection_ray.P, &projection_ray.t);
-      projection_ray.t *= MNEE_PROJECTION_DISTANCE_MULTIPLIER;
+      projection_ray.D = normalize_len(tentative_p - projection_ray.P, &projection_ray.tmax);
+      projection_ray.tmax *= MNEE_PROJECTION_DISTANCE_MULTIPLIER;
 
       bool projection_success = false;
       for (int isect_count = 0; isect_count < MNEE_MAX_INTERSECTION_COUNT; isect_count++) {
@@ -519,8 +526,7 @@ ccl_device_forceinline bool mnee_newton_solver(KernelGlobals kg,
 
         projection_ray.self.object = projection_isect.object;
         projection_ray.self.prim = projection_isect.prim;
-        projection_ray.P += projection_isect.t * projection_ray.D;
-        projection_ray.t -= projection_isect.t;
+        projection_ray.tmin = intersection_t_offset(projection_isect.t);
       }
       if (!projection_success) {
         reduce_stepsize = true;
@@ -852,6 +858,7 @@ ccl_device_forceinline bool mnee_path_contribution(KernelGlobals kg,
   Ray probe_ray;
   probe_ray.self.light_object = ls->object;
   probe_ray.self.light_prim = ls->prim;
+  probe_ray.tmin = 0.0f;
   probe_ray.dP = differential_make_compact(sd->dP);
   probe_ray.dD = differential_zero_compact();
   probe_ray.time = sd->time;
@@ -867,13 +874,13 @@ ccl_device_forceinline bool mnee_path_contribution(KernelGlobals kg,
     ccl_private const ManifoldVertex &v = vertices[vi];
 
     /* Check visibility. */
-    probe_ray.D = normalize_len(v.p - probe_ray.P, &probe_ray.t);
+    probe_ray.D = normalize_len(v.p - probe_ray.P, &probe_ray.tmax);
     if (scene_intersect(kg, &probe_ray, PATH_RAY_TRANSMIT, &probe_isect)) {
       int hit_object = (probe_isect.object == OBJECT_NONE) ?
                            kernel_data_fetch(prim_object, probe_isect.prim) :
                            probe_isect.object;
       /* Test whether the ray hit the appropriate object at its intended location. */
-      if (hit_object != v.object || fabsf(probe_ray.t - probe_isect.t) > MNEE_MIN_DISTANCE)
+      if (hit_object != v.object || fabsf(probe_ray.tmax - probe_isect.t) > MNEE_MIN_DISTANCE)
         return false;
     }
     probe_ray.self.object = v.object;
@@ -952,15 +959,16 @@ ccl_device_forceinline int kernel_path_mnee_sample(KernelGlobals kg,
   probe_ray.self.light_object = ls->object;
   probe_ray.self.light_prim = ls->prim;
   probe_ray.P = sd->P;
+  probe_ray.tmin = 0.0f;
   if (ls->t == FLT_MAX) {
     /* Distant / env light. */
     probe_ray.D = ls->D;
-    probe_ray.t = ls->t;
+    probe_ray.tmax = ls->t;
   }
   else {
     /* Other lights, avoid self-intersection. */
     probe_ray.D = ls->P - probe_ray.P;
-    probe_ray.D = normalize_len(probe_ray.D, &probe_ray.t);
+    probe_ray.D = normalize_len(probe_ray.D, &probe_ray.tmax);
   }
   probe_ray.dP = differential_make_compact(sd->dP);
   probe_ray.dD = differential_zero_compact();
@@ -1042,9 +1050,7 @@ ccl_device_forceinline int kernel_path_mnee_sample(KernelGlobals kg,
 
     probe_ray.self.object = probe_isect.object;
     probe_ray.self.prim = probe_isect.prim;
-    probe_ray.P += probe_isect.t * probe_ray.D;
-    if (ls->t != FLT_MAX)
-      probe_ray.t -= probe_isect.t;
+    probe_ray.tmin = intersection_t_offset(probe_isect.t);
   };
 
   /* Mark the manifold walk invalid to keep mollification on by default. */
diff --git a/intern/cycles/kernel/integrator/path_state.h b/intern/cycles/kernel/integrator/path_state.h
index 1a085506a70..912c380cdb6 100644
--- a/intern/cycles/kernel/integrator/path_state.h
+++ b/intern/cycles/kernel/integrator/path_state.h
@@ -52,7 +52,6 @@ ccl_device_inline void path_state_init_integrator(KernelGlobals kg,
   INTEGRATOR_STATE_WRITE(state, path, flag) = PATH_RAY_CAMERA | PATH_RAY_MIS_SKIP |
                                               PATH_RAY_TRANSPARENT_BACKGROUND;
   INTEGRATOR_STATE_WRITE(state, path, mis_ray_pdf) = 0.0f;
-  INTEGRATOR_STATE_WRITE(state, path, mis_ray_t) = 0.0f;
   INTEGRATOR_STATE_WRITE(state, path, min_ray_pdf) = FLT_MAX;
   INTEGRATOR_STATE_WRITE(state, path, continuation_probability) = 1.0f;
   INTEGRATOR_STATE_WRITE(state, path, throughput) = make_float3(1.0f, 1.0f, 1.0f);
diff --git a/intern/cycles/kernel/integrator/shade_background.h b/intern/cycles/kernel/integrator/shade_background.h
index 4791a963ae6..a7edfffd175 100644
--- a/intern/cycles/kernel/integrator/shade_background.h
+++ b/intern/cycles/kernel/integrator/shade_background.h
@@ -62,11 +62,10 @@ ccl_device float3 integrator_eval_background_shader(KernelGlobals kg,
     const float3 ray_P = INTEGRATOR_STATE(state, ray, P);
     const float3 ray_D = INTEGRATOR_STATE(state, ray, D);
     const float mis_ray_pdf = INTEGRATOR_STATE(state, path, mis_ray_pdf);
-    const float mis_ray_t = INTEGRATOR_STATE(state, path, mis_ray_t);
 
     /* multiple importance sampling, get background light pdf for ray
      * direction, and compute weight with respect to BSDF pdf */
-    const float pdf = background_light_pdf(kg, ray_P - ray_D * mis_ray_t, ray_D);
+    const float pdf = background_light_pdf(kg, ray_P, ray_D);
     const float mis_weight = light_sample_mis_weight_forward(kg, mis_ray_pdf, pdf);
     L *= mis_weight;
   }
@@ -213,7 +212,7 @@ ccl_device void integrator_shade_background(KernelGlobals kg,
   }
 #endif
 
-  INTEGRATOR_PATH_TERMINATE(DEVICE_KERNEL_INTEGRATOR_SHADE_BACKGROUND);
+  integrator_path_terminate(kg, state, DEVICE_KERNEL_INTEGRATOR_SHADE_BACKGROUND);
 }
 
 CCL_NAMESPACE_END
diff --git a/intern/cycles/kernel/integrator/shade_light.h b/intern/cycles/kernel/integrator/shade_light.h
index be926c78439..910e3383f51 100644
--- a/intern/cycles/kernel/integrator/shade_light.h
+++ b/intern/cycles/kernel/integrator/shade_light.h
@@ -22,19 +22,8 @@ ccl_device_inline void integrate_light(KernelGlobals kg,
   const float3 ray_D = INTEGRATOR_STATE(state, ray, D);
   const float ray_time = INTEGRATOR_STATE(state, ray, time);
 
-  /* Advance ray beyond light. */
-  /* TODO: can we make this more numerically robust to avoid reintersecting the
-   * same light in some cases? Ray should not intersect surface anymore as the
-   * object and prim ids will prevent self intersection. */
-  const float3 new_ray_P = ray_P + ray_D * isect.t;
-  INTEGRATOR_STATE_WRITE(state, ray, P) = new_ray_P;
-  INTEGRATOR_STATE_WRITE(state, ray, t) -= isect.t;
-
-  /* Set position to where the BSDF was sampled, for correct MIS PDF. */
-  const float mis_ray_t = INTEGRATOR_STATE(state, path, mis_ray_t);
-  ray_P -= ray_D * mis_ray_t;
-  isect.t += mis_ray_t;
-  INTEGRATOR_STATE_WRITE(state, path, mis_ray_t) = isect.t;
+  /* Advance ray to new start distance. */
+  INTEGRATOR_STATE_WRITE(state, ray, tmin) = intersection_t_offset(isect.t);
 
   LightSample ls ccl_optional_struct_init;
   const bool use_light_sample = light_sample_from_intersection(kg, &isect, ray_P, ray_D, &ls);
@@ -99,11 +88,13 @@ ccl_device void integrator_shade_light(KernelGlobals kg,
   INTEGRATOR_STATE_WRITE(state, path, transparent_bounce) = transparent_bounce;
 
   if (transparent_bounce >= kernel_data.integrator.transparent_max_bounce) {
-    INTEGRATOR_PATH_TERMINATE(DEVICE_KERNEL_INTEGRATOR_SHADE_LIGHT);
+    integrator_path_terminate(kg, state, DEVICE_KERNEL_INTEGRATOR_SHADE_LIGHT);
     return;
   }
   else {
-    INTEGRATOR_PATH_NEXT(DEVICE_KERNEL_INTEGRATOR_SHADE_LIGHT,
+    integrator_path_next(kg,
+                         state,
+                         DEVICE_KERNEL_INTEGRATOR_SHADE_LIGHT,
                          DEVICE_KERNEL_INTEGRATOR_INTERSECT_CLOSEST);
     return;
   }
diff --git a/intern/cycles/kernel/integrator/shade_shadow.h b/intern/cycles/kernel/integrator/shade_shadow.h
index 2b929b7b62e..4b002a47bee 100644
--- a/intern/cycles/kernel/integrator/shade_shadow.h
+++ b/intern/cycles/kernel/integrator/shade_shadow.h
@@ -75,13 +75,9 @@ ccl_device_inline void integrate_transparent_volume_shadow(KernelGlobals kg,
   ray.self.light_object = OBJECT_NONE;
   ray.self.light_prim = PRIM_NONE;
   /* Modify ray position and length to match current segment. */
-  const float start_t = (hit == 0) ? 0.0f :
-                                     INTEGRATOR_STATE_ARRAY(state, shadow_isect, hit - 1, t);
-  const float end_t = (hit < num_recorded_hits) ?
-                          INTEGRATOR_STATE_ARRAY(state, shadow_isect, hit, t) :
-                          ray.t;
-  ray.P += start_t * ray.D;
-  ray.t = end_t - start_t;
+  ray.tmin = (hit == 0) ? ray.tmin : INTEGRATOR_STATE_ARRAY(state, shadow_isect, hit - 1, t);
+  ray.tmax = (hit < num_recorded_hits) ? INTEGRATOR_STATE_ARRAY(state, shadow_isect, hit, t) :
+                                         ray.tmax;
 
   shader_setup_from_volume(kg, shadow_sd, &ray);
 
@@ -137,10 +133,7 @@ ccl_device_inline bool integrate_transparent_shadow(KernelGlobals kg,
     /* There are more hits that we could not recorded due to memory usage,
      * adjust ray to intersect again from the last hit. */
     const float last_hit_t = INTEGRATOR_STATE_ARRAY(state, shadow_isect, num_recorded_hits - 1, t);
-    const float3 ray_P = INTEGRATOR_STATE(state, shadow_ray, P);
-    const float3 ray_D = INTEGRATOR_STATE(state, shadow_ray, D);
-    INTEGRATOR_STATE_WRITE(state, shadow_ray, P) = ray_P + last_hit_t * ray_D;
-    INTEGRATOR_STATE_WRITE(state, shadow_ray, t) -= last_hit_t;
+    INTEGRATOR_STATE_WRITE(state, shadow_ray, tmin) = intersection_t_offset(last_hit_t);
   }
 
   return false;
@@ -158,20 +151,22 @@ ccl_device void integrator_shade_shadow(KernelGlobals kg,
   /* Evaluate transparent shadows. */
   const bool opaque = integrate_transparent_shadow(kg, state, num_hits);
   if (opaque) {
-    INTEGRATOR_SHADOW_PATH_TERMINATE(DEVICE_KERNEL_INTEGRATOR_SHADE_SHADOW);
+    integrator_shadow_path_terminate(kg, state, DEVICE_KERNEL_INTEGRATOR_SHADE_SHADOW);
     return;
   }
 #endif
 
   if (shadow_intersections_has_remaining(num_hits)) {
     /* More intersections to find, continue shadow ray. */
-    INTEGRATOR_SHADOW_PATH_NEXT(DEVICE_KERNEL_INTEGRATOR_SHADE_SHADOW,
+    integrator_shadow_path_next(kg,
+                                state,
+                                DEVICE_KERNEL_INTEGRATOR_SHADE_SHADOW,
                                 DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW);
     return;
   }
   else {
     kernel_accum_light(kg, state, render_buffer);
-    INTEGRATOR_SHADOW_PATH_TERMINATE(DEVICE_KERNEL_INTEGRATOR_SHADE_SHADOW);
+    integrator_shadow_path_terminate(kg, state, DEVICE_KERNEL_INTEGRATOR_SHADE_SHADOW);
     return;
   }
 }
diff --git a/intern/cycles/kernel/integrator/shade_surface.h b/intern/cycles/kernel/integrator/shade_surface.h
index 57b88b806a4..1514b3956ad 100644
--- a/intern/cycles/kernel/integrator/shade_surface.h
+++ b/intern/cycles/kernel/integrator/shade_surface.h
@@ -77,7 +77,7 @@ ccl_device_forceinline void integrate_surface_emission(KernelGlobals kg,
 #  endif
   {
     const float bsdf_pdf = INTEGRATOR_STATE(state, path, mis_ray_pdf);
-    const float t = sd->ray_length + INTEGRATOR_STATE(state, path, mis_ray_t);
+    const float t = sd->ray_length;
 
     /* Multiple importance sampling, get triangle light pdf,
      * and compute weight with respect to BSDF pdf. */
@@ -190,8 +190,8 @@ ccl_device_forceinline void integrate_surface_direct_light(KernelGlobals kg,
   const bool is_light = light_sample_is_light(&ls);
 
   /* Branch off shadow kernel. */
-  INTEGRATOR_SHADOW_PATH_INIT(
-      shadow_state, state, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW, shadow);
+  IntegratorShadowState shadow_state = integrator_shadow_path_init(
+      kg, state, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW, false);
 
   /* Copy volume stack and enter/exit volume. */
   integrator_state_copy_volume_stack_to_shadow(kg, shadow_state, state);
@@ -323,16 +323,21 @@ ccl_device_forceinline int integrate_surface_bsdf_bssrdf_bounce(
     return LABEL_NONE;
   }
 
-  /* Setup ray. Note that clipping works through transparent bounces. */
-  INTEGRATOR_STATE_WRITE(state, ray, P) = sd->P;
-  INTEGRATOR_STATE_WRITE(state, ray, D) = normalize(bsdf_omega_in);
-  INTEGRATOR_STATE_WRITE(state, ray, t) = (label & LABEL_TRANSPARENT) ?
-                                              INTEGRATOR_STATE(state, ray, t) - sd->ray_length :
-                                              FLT_MAX;
+  if (label & LABEL_TRANSPARENT) {
+    /* Only need to modify start distance for transparent. */
+    INTEGRATOR_STATE_WRITE(state, ray, tmin) = intersection_t_offset(sd->ray_length);
+  }
+  else {
+    /* Setup ray with changed origin and direction. */
+    INTEGRATOR_STATE_WRITE(state, ray, P) = sd->P;
+    INTEGRATOR_STATE_WRITE(state, ray, D) = normalize(bsdf_omega_in);
+    INTEGRATOR_STATE_WRITE(state, ray, tmin) = 0.0f;
+    INTEGRATOR_STATE_WRITE(state, ray, tmax) = FLT_MAX;
 #ifdef __RAY_DIFFERENTIALS__
-  INTEGRATOR_STATE_WRITE(state, ray, dP) = differential_make_compact(sd->dP);
-  INTEGRATOR_STATE_WRITE(state, ray, dD) = differential_make_compact(bsdf_domega_in);
+    INTEGRATOR_STATE_WRITE(state, ray, dP) = differential_make_compact(sd->dP);
+    INTEGRATOR_STATE_WRITE(state, ray, dD) = differential_make_compact(bsdf_domega_in);
 #endif
+  }
 
   /* Update throughput. */
   float3 throughput = INTEGRATOR_STATE(state, path, throughput);
@@ -349,12 +354,8 @@ ccl_device_forceinline int integrate_surface_bsdf_bssrdf_bounce(
   }
 
   /* Update path state */
-  if (label & LABEL_TRANSPARENT) {
-    INTEGRATOR_STATE_WRITE(state, path, mis_ray_t) += sd->ray_length;
-  }
-  else {
+  if (!(label & LABEL_TRANSPARENT)) {
     INTEGRATOR_STATE_WRITE(state, path, mis_ray_pdf) = bsdf_pdf;
-    INTEGRATOR_STATE_WRITE(state, path, mis_ray_t) = 0.0f;
     INTEGRATOR_STATE_WRITE(state, path, min_ray_pdf) = fminf(
         bsdf_pdf, INTEGRATOR_STATE(state, path, min_ray_pdf));
   }
@@ -371,17 +372,8 @@ ccl_device_forceinline int integrate_surface_volume_only_bounce(IntegratorState
     return LABEL_NONE;
   }
 
-  /* Setup ray position, direction stays unchanged. */
-  INTEGRATOR_STATE_WRITE(state, ray, P) = sd->P;
-
-  /* Clipping works through transparent. */
-  INTEGRATOR_STATE_WRITE(state, ray, t) -= sd->ray_length;
-
-#  ifdef __RAY_DIFFERENTIALS__
-  INTEGRATOR_STATE_WRITE(state, ray, dP) = differential_make_compact(sd->dP);
-#  endif
-
-  INTEGRATOR_STATE_WRITE(state, path, mis_ray_t) += sd->ray_length;
+  /* Only modify start distance. */
+  INTEGRATOR_STATE_WRITE(state, ray, tmin) = intersection_t_offset(sd->ray_length);
 
   return LABEL_TRANSMIT | LABEL_TRANSPARENT;
 }
@@ -432,7 +424,8 @@ ccl_device_forceinline void integrate_surface_ao(KernelGlobals kg,
   Ray ray ccl_optional_struct_init;
   ray.P = shadow_ray_offset(kg, sd, ao_D, &skip_self);
   ray.D = ao_D;
-  ray.t = kernel_data.integrator.ao_bounces_distance;
+  ray.tmin = 0.0f;
+  ray.tmax = kernel_data.integrator.ao_bounces_distance;
   ray.time = sd->time;
   ray.self.object = (skip_self) ? sd->object : OBJECT_NONE;
   ray.self.prim = (skip_self) ? sd->prim : PRIM_NONE;
@@ -442,7 +435,8 @@ ccl_device_forceinline void integrate_surface_ao(KernelGlobals kg,
   ray.dD = differential_zero_compact();
 
   /* Branch off shadow kernel. */
-  INTEGRATOR_SHADOW_PATH_INIT(shadow_state, state, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW, ao);
+  IntegratorShadowState shadow_state = integrator_shadow_path_init(
+      kg, state, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW, true);
 
   /* Copy volume stack and enter/exit volume. */
   integrator_state_copy_volume_stack_to_shadow(kg, shadow_state, state);
@@ -604,22 +598,23 @@ ccl_device bool integrate_surface(KernelGlobals kg,
 }
 
 template<uint node_feature_mask = KERNEL_FEATURE_NODE_MASK_SURFACE & ~KERNEL_FEATURE_NODE_RAYTRACE,
-         int current_kernel = DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE>
+         DeviceKernel current_kernel = DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE>
 ccl_device_forceinline void integrator_shade_surface(KernelGlobals kg,
                                                      IntegratorState state,
                                                      ccl_global float *ccl_restrict render_buffer)
 {
   if (integrate_surface<node_feature_mask>(kg, state, render_buffer)) {
     if (INTEGRATOR_STATE(state, path, flag) & PATH_RAY_SUBSURFACE) {
-      INTEGRATOR_PATH_NEXT(current_kernel, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SUBSURFACE);
+      integrator_path_next(
+          kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SUBSURFACE);
     }
     else {
-      kernel_assert(INTEGRATOR_STATE(state, ray, t) != 0.0f);
-      INTEGRATOR_PATH_NEXT(current_kernel, DEVICE_KERNEL_INTEGRATOR_INTERSECT_CLOSEST);
+      kernel_assert(INTEGRATOR_STATE(state, ray, tmax) != 0.0f);
+      integrator_path_next(kg, state, current_kernel, DEVICE_KERNEL_INTEGRATOR_INTERSECT_CLOSEST);
     }
   }
   else {
-    INTEGRATOR_PATH_TERMINATE(current_kernel);
+    integrator_path_terminate(kg, state, current_kernel);
   }
 }
 
diff --git a/intern/cycles/kernel/integrator/shade_volume.h b/intern/cycles/kernel/integrator/shade_volume.h
index 6cf80f4ddc5..4aab097a7d8 100644
--- a/intern/cycles/kernel/integrator/shade_volume.h
+++ b/intern/cycles/kernel/integrator/shade_volume.h
@@ -114,7 +114,8 @@ ccl_device_inline bool volume_shader_sample(KernelGlobals kg,
 ccl_device_forceinline void volume_step_init(KernelGlobals kg,
                                              ccl_private const RNGState *rng_state,
                                              const float object_step_size,
-                                             float t,
+                                             const float tmin,
+                                             const float tmax,
                                              ccl_private float *step_size,
                                              ccl_private float *step_shade_offset,
                                              ccl_private float *steps_offset,
@@ -122,7 +123,7 @@ ccl_device_forceinline void volume_step_init(KernelGlobals kg,
 {
   if (object_step_size == FLT_MAX) {
     /* Homogeneous volume. */
-    *step_size = t;
+    *step_size = tmax - tmin;
     *step_shade_offset = 0.0f;
     *steps_offset = 1.0f;
     *max_steps = 1;
@@ -130,6 +131,7 @@ ccl_device_forceinline void volume_step_init(KernelGlobals kg,
   else {
     /* Heterogeneous volume. */
     *max_steps = kernel_data.integrator.volume_max_steps;
+    const float t = tmax - tmin;
     float step = min(object_step_size, t);
 
     /* compute exact steps in advance for malloc */
@@ -165,7 +167,7 @@ ccl_device void volume_shadow_homogeneous(KernelGlobals kg, IntegratorState stat
   float3 sigma_t = zero_float3();
 
   if (shadow_volume_shader_sample(kg, state, sd, &sigma_t)) {
-    *throughput *= volume_color_transmittance(sigma_t, ray->t);
+    *throughput *= volume_color_transmittance(sigma_t, ray->tmax - ray->tmin);
   }
 }
 #  endif
@@ -194,7 +196,8 @@ ccl_device void volume_shadow_heterogeneous(KernelGlobals kg,
   volume_step_init(kg,
                    &rng_state,
                    object_step_size,
-                   ray->t,
+                   ray->tmin,
+                   ray->tmax,
                    &step_size,
                    &step_shade_offset,
                    &unused,
@@ -202,13 +205,13 @@ ccl_device void volume_shadow_heterogeneous(KernelGlobals kg,
   const float steps_offset = 1.0f;
 
   /* compute extinction at the start */
-  float t = 0.0f;
+  float t = ray->tmin;
 
   float3 sum = zero_float3();
 
   for (int i = 0; i < max_steps; i++) {
     /* advance to new position */
-    float new_t = min(ray->t, (i + steps_offset) * step_size);
+    float new_t = min(ray->tmax, ray->tmin + (i + steps_offset) * step_size);
     float dt = new_t - t;
 
     float3 new_P = ray->P + ray->D * (t + dt * step_shade_offset);
@@ -233,7 +236,7 @@ ccl_device void volume_shadow_heterogeneous(KernelGlobals kg,
 
     /* stop if at the end of the volume */
     t = new_t;
-    if (t == ray->t) {
+    if (t == ray->tmax) {
       /* Update throughput in case we haven't done it above */
       tp = *throughput * exp(sum);
       break;
@@ -257,15 +260,16 @@ ccl_device float volume_equiangular_sample(ccl_private const Ray *ccl_restrict r
                                            const float xi,
                                            ccl_private float *pdf)
 {
-  const float t = ray->t;
+  const float tmin = ray->tmin;
+  const float tmax = ray->tmax;
   const float delta = dot((light_P - ray->P), ray->D);
   const float D = safe_sqrtf(len_squared(light_P - ray->P) - delta * delta);
   if (UNLIKELY(D == 0.0f)) {
     *pdf = 0.0f;
     return 0.0f;
   }
-  const float theta_a = -atan2f(delta, D);
-  const float theta_b = atan2f(t - delta, D);
+  const float theta_a = atan2f(tmin - delta, D);
+  const float theta_b = atan2f(tmax - delta, D);
   const float t_ = D * tanf((xi * theta_b) + (1 - xi) * theta_a);
   if (UNLIKELY(theta_b == theta_a)) {
     *pdf = 0.0f;
@@ -273,7 +277,7 @@ ccl_device float volume_equiangular_sample(ccl_private const Ray *ccl_restrict r
   }
   *pdf = D / ((theta_b - theta_a) * (D * D + t_ * t_));
 
-  return min(t, delta + t_); /* min is only for float precision errors */
+  return clamp(delta + t_, tmin, tmax); /* clamp is only for float precision errors */
 }
 
 ccl_device float volume_equiangular_pdf(ccl_private const Ray *ccl_restrict ray,
@@ -286,11 +290,12 @@ ccl_device float volume_equiangular_pdf(ccl_private const Ray *ccl_restrict ray,
     return 0.0f;
   }
 
-  const float t = ray->t;
+  const float tmin = ray->tmin;
+  const float tmax = ray->tmax;
   const float t_ = sample_t - delta;
 
-  const float theta_a = -atan2f(delta, D);
-  const float theta_b = atan2f(t - delta, D);
+  const float theta_a = atan2f(tmin - delta, D);
+  const float theta_b = atan2f(tmax - delta, D);
   if (UNLIKELY(theta_b == theta_a)) {
     return 0.0f;
   }
@@ -310,11 +315,12 @@ ccl_device float volume_equiangular_cdf(ccl_private const Ray *ccl_restrict ray,
     return 0.0f;
   }
 
-  const float t = ray->t;
+  const float tmin = ray->tmin;
+  const float tmax = ray->tmax;
   const float t_ = sample_t - delta;
 
-  const float theta_a = -atan2f(delta, D);
-  const float theta_b = atan2f(t - delta, D);
+  const float theta_a = atan2f(tmin - delta, D);
+  const float theta_b = atan2f(tmax - delta, D);
   if (UNLIKELY(theta_b == theta_a)) {
     return 0.0f;
   }
@@ -390,8 +396,8 @@ ccl_device float3 volume_emission_integrate(ccl_private VolumeShaderCoefficients
 
 typedef struct VolumeIntegrateState {
   /* Volume segment extents. */
-  float start_t;
-  float end_t;
+  float tmin;
+  float tmax;
 
   /* If volume is absorption-only up to this point, and no probabilistic
    * scattering or termination has been used yet. */
@@ -426,9 +432,9 @@ ccl_device_forceinline void volume_integrate_step_scattering(
 
   /* Equiangular sampling for direct lighting. */
   if (vstate.direct_sample_method == VOLUME_SAMPLE_EQUIANGULAR && !result.direct_scatter) {
-    if (result.direct_t >= vstate.start_t && result.direct_t <= vstate.end_t &&
+    if (result.direct_t >= vstate.tmin && result.direct_t <= vstate.tmax &&
         vstate.equiangular_pdf > VOLUME_SAMPLE_PDF_CUTOFF) {
-      const float new_dt = result.direct_t - vstate.start_t;
+      const float new_dt = result.direct_t - vstate.tmin;
       const float3 new_transmittance = volume_color_transmittance(coeff.sigma_t, new_dt);
 
       result.direct_scatter = true;
@@ -458,7 +464,7 @@ ccl_device_forceinline void volume_integrate_step_scattering(
       /* compute sampling distance */
       const float sample_sigma_t = volume_channel_get(coeff.sigma_t, channel);
       const float new_dt = -logf(1.0f - vstate.rscatter) / sample_sigma_t;
-      const float new_t = vstate.start_t + new_dt;
+      const float new_t = vstate.tmin + new_dt;
 
       /* transmittance and pdf */
       const float3 new_transmittance = volume_color_transmittance(coeff.sigma_t, new_dt);
@@ -528,7 +534,8 @@ ccl_device_forceinline void volume_integrate_heterogeneous(
   volume_step_init(kg,
                    rng_state,
                    object_step_size,
-                   ray->t,
+                   ray->tmin,
+                   ray->tmax,
                    &step_size,
                    &step_shade_offset,
                    &steps_offset,
@@ -536,8 +543,8 @@ ccl_device_forceinline void volume_integrate_heterogeneous(
 
   /* Initialize volume integration state. */
   VolumeIntegrateState vstate ccl_optional_struct_init;
-  vstate.start_t = 0.0f;
-  vstate.end_t = 0.0f;
+  vstate.tmin = ray->tmin;
+  vstate.tmax = ray->tmin;
   vstate.absorption_only = true;
   vstate.rscatter = path_state_rng_1D(kg, rng_state, PRNG_SCATTER_DISTANCE);
   vstate.rphase = path_state_rng_1D(kg, rng_state, PRNG_PHASE_CHANNEL);
@@ -578,8 +585,8 @@ ccl_device_forceinline void volume_integrate_heterogeneous(
 
   for (int i = 0; i < max_steps; i++) {
     /* Advance to new position */
-    vstate.end_t = min(ray->t, (i + steps_offset) * step_size);
-    const float shade_t = vstate.start_t + (vstate.end_t - vstate.start_t) * step_shade_offset;
+    vstate.tmax = min(ray->tmax, ray->tmin + (i + steps_offset) * step_size);
+    const float shade_t = vstate.tmin + (vstate.tmax - vstate.tmin) * step_shade_offset;
     sd->P = ray->P + ray->D * shade_t;
 
     /* compute segment */
@@ -588,7 +595,7 @@ ccl_device_forceinline void volume_integrate_heterogeneous(
       const int closure_flag = sd->flag;
 
       /* Evaluate transmittance over segment. */
-      const float dt = (vstate.end_t - vstate.start_t);
+      const float dt = (vstate.tmax - vstate.tmin);
       const float3 transmittance = (closure_flag & SD_EXTINCTION) ?
                                        volume_color_transmittance(coeff.sigma_t, dt) :
                                        one_float3();
@@ -645,8 +652,8 @@ ccl_device_forceinline void volume_integrate_heterogeneous(
     }
 
     /* Stop if at the end of the volume. */
-    vstate.start_t = vstate.end_t;
-    if (vstate.start_t == ray->t) {
+    vstate.tmin = vstate.tmax;
+    if (vstate.tmin == ray->tmax) {
       break;
     }
   }
@@ -774,8 +781,8 @@ ccl_device_forceinline void integrate_volume_direct_light(
   const bool is_light = light_sample_is_light(ls);
 
   /* Branch off shadow kernel. */
-  INTEGRATOR_SHADOW_PATH_INIT(
-      shadow_state, state, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW, shadow);
+  IntegratorShadowState shadow_state = integrator_shadow_path_init(
+      kg, state, DEVICE_KERNEL_INTEGRATOR_INTERSECT_SHADOW, false);
 
   /* Write shadow ray and associated state to global memory. */
   integrator_state_write_shadow_ray(kg, shadow_state, &ray);
@@ -880,7 +887,8 @@ ccl_device_forceinline bool integrate_volume_phase_scatter(
   /* Setup ray. */
   INTEGRATOR_STATE_WRITE(state, ray, P) = sd->P;
   INTEGRATOR_STATE_WRITE(state, ray, D) = normalize(phase_omega_in);
-  INTEGRATOR_STATE_WRITE(state, ray, t) = FLT_MAX;
+  INTEGRATOR_STATE_WRITE(state, ray, tmin) = 0.0f;
+  INTEGRATOR_STATE_WRITE(state, ray, tmax) = FLT_MAX;
 #  ifdef __RAY_DIFFERENTIALS__
   INTEGRATOR_STATE_WRITE(state, ray, dP) = differential_make_compact(sd->dP);
   INTEGRATOR_STATE_WRITE(state, ray, dD) = differential_make_compact(phase_domega_in);
@@ -901,7 +909,6 @@ ccl_device_forceinline bool integrate_volume_phase_scatter(
 
   /* Update path state */
   INTEGRATOR_STATE_WRITE(state, path, mis_ray_pdf) = phase_pdf;
-  INTEGRATOR_STATE_WRITE(state, path, mis_ray_t) = 0.0f;
   INTEGRATOR_STATE_WRITE(state, path, min_ray_pdf) = fminf(
       phase_pdf, INTEGRATOR_STATE(state, path, min_ray_pdf));
 
@@ -1021,7 +1028,7 @@ ccl_device void integrator_shade_volume(KernelGlobals kg,
   integrator_state_read_isect(kg, state, &isect);
 
   /* Set ray length to current segment. */
-  ray.t = (isect.prim != PRIM_NONE) ? isect.t : FLT_MAX;
+  ray.tmax = (isect.prim != PRIM_NONE) ? isect.t : FLT_MAX;
 
   /* Clean volume stack for background rays. */
   if (isect.prim == PRIM_NONE) {
@@ -1032,13 +1039,15 @@ ccl_device void integrator_shade_volume(KernelGlobals kg,
 
   if (event == VOLUME_PATH_SCATTERED) {
     /* Queue intersect_closest kernel. */
-    INTEGRATOR_PATH_NEXT(DEVICE_KERNEL_INTEGRATOR_SHADE_VOLUME,
+    integrator_path_next(kg,
+                         state,
+                         DEVICE_KERNEL_INTEGRATOR_SHADE_VOLUME,
                          DEVICE_KERNEL_INTEGRATOR_INTERSECT_CLOSEST);
     return;
   }
   else if (event == VOLUME_PATH_MISSED) {
     /* End path. */
-    INTEGRATOR_PATH_TERMINATE(DEVICE_KERNEL_INTEGRATOR_SHADE_VOLUME);
+    integrator_path_terminate(kg, state, DEVICE_KERNEL_INTEGRATOR_SHADE_VOLUME);
     return;
   }
   else {
diff --git a/intern/cycles/kernel/integrator/shadow_catcher.h b/intern/cycles/kernel/integrator/shadow_catcher.h
index 42d44580f80..ff63625aceb 100644
--- a/intern/cycles/kernel/integrator/shadow_catcher.h
+++ b/intern/cycles/kernel/integrator/shadow_catcher.h
@@ -50,7 +50,7 @@ ccl_device_inline bool kernel_shadow_catcher_is_path_split_bounce(KernelGlobals
 ccl_device_inline bool kernel_shadow_catcher_path_can_split(KernelGlobals kg,
                                                             ConstIntegratorState state)
 {
-  if (INTEGRATOR_PATH_IS_TERMINATED) {
+  if (integrator_path_is_terminated(state)) {
     return false;
   }
 
diff --git a/intern/cycles/kernel/integrator/shadow_state_template.h b/intern/cycles/kernel/integrator/shadow_state_template.h
index eaee65ada40..c340467606d 100644
--- a/intern/cycles/kernel/integrator/shadow_state_template.h
+++ b/intern/cycles/kernel/integrator/shadow_state_template.h
@@ -47,7 +47,8 @@ KERNEL_STRUCT_END(shadow_path)
 KERNEL_STRUCT_BEGIN(shadow_ray)
 KERNEL_STRUCT_MEMBER(shadow_ray, packed_float3, P, KERNEL_FEATURE_PATH_TRACING)
 KERNEL_STRUCT_MEMBER(shadow_ray, packed_float3, D, KERNEL_FEATURE_PATH_TRACING)
-KERNEL_STRUCT_MEMBER(shadow_ray, float, t, KERNEL_FEATURE_PATH_TRACING)
+KERNEL_STRUCT_MEMBER(shadow_ray, float, tmin, KERNEL_FEATURE_PATH_TRACING)
+KERNEL_STRUCT_MEMBER(shadow_ray, float, tmax, KERNEL_FEATURE_PATH_TRACING)
 KERNEL_STRUCT_MEMBER(shadow_ray, float, time, KERNEL_FEATURE_PATH_TRACING)
 KERNEL_STRUCT_MEMBER(shadow_ray, float, dP, KERNEL_FEATURE_PATH_TRACING)
 KERNEL_STRUCT_MEMBER(shadow_ray, int, object, KERNEL_FEATURE_PATH_TRACING)
diff --git a/intern/cycles/kernel/integrator/state.h b/intern/cycles/kernel/integrator/state.h
index d6fef27f344..d10d31e930e 100644
--- a/intern/cycles/kernel/integrator/state.h
+++ b/intern/cycles/kernel/integrator/state.h
@@ -127,6 +127,9 @@ typedef struct IntegratorStateGPU {
 
   /* Index of main path which will be used by a next shadow catcher split.  */
   ccl_global int *next_main_path_index;
+
+  /* Divisor used to partition active indices by locality when sorting by material.  */
+  uint sort_partition_divisor;
 } IntegratorStateGPU;
 
 /* Abstraction
diff --git a/intern/cycles/kernel/integrator/state_flow.h b/intern/cycles/kernel/integrator/state_flow.h
index fed74d49434..4b03c665e17 100644
--- a/intern/cycles/kernel/integrator/state_flow.h
+++ b/intern/cycles/kernel/integrator/state_flow.h
@@ -10,125 +10,196 @@ CCL_NAMESPACE_BEGIN
 
 /* Control Flow
  *
- * Utilities for control flow between kernels. The implementation may differ per device
- * or even be handled on the host side. To abstract such differences, experiment with
- * different implementations and for debugging, this is abstracted using macros.
+ * Utilities for control flow between kernels. The implementation is different between CPU and
+ * GPU devices. For the latter part of the logic is handled on the host side with wavefronts.
  *
  * There is a main path for regular path tracing camera for path tracing. Shadows for next
  * event estimation branch off from this into their own path, that may be computed in
- * parallel while the main path continues.
+ * parallel while the main path continues. Additionally, shading kernels are sorted using
+ * a key for coherence.
  *
  * Each kernel on the main path must call one of these functions. These may not be called
  * multiple times from the same kernel.
  *
- * INTEGRATOR_PATH_INIT(next_kernel)
- * INTEGRATOR_PATH_NEXT(current_kernel, next_kernel)
- * INTEGRATOR_PATH_TERMINATE(current_kernel)
+ * integrator_path_init(kg, state, next_kernel)
+ * integrator_path_next(kg, state, current_kernel, next_kernel)
+ * integrator_path_terminate(kg, state, current_kernel)
  *
  * For the shadow path similar functions are used, and again each shadow kernel must call
  * one of them, and only once.
  */
 
-#define INTEGRATOR_PATH_IS_TERMINATED (INTEGRATOR_STATE(state, path, queued_kernel) == 0)
-#define INTEGRATOR_SHADOW_PATH_IS_TERMINATED \
-  (INTEGRATOR_STATE(state, shadow_path, queued_kernel) == 0)
+ccl_device_forceinline bool integrator_path_is_terminated(ConstIntegratorState state)
+{
+  return INTEGRATOR_STATE(state, path, queued_kernel) == 0;
+}
+
+ccl_device_forceinline bool integrator_shadow_path_is_terminated(ConstIntegratorShadowState state)
+{
+  return INTEGRATOR_STATE(state, shadow_path, queued_kernel) == 0;
+}
 
 #ifdef __KERNEL_GPU__
 
-#  define INTEGRATOR_PATH_INIT(next_kernel) \
-    atomic_fetch_and_add_uint32(&kernel_integrator_state.queue_counter->num_queued[next_kernel], \
-                                1); \
-    INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel;
-#  define INTEGRATOR_PATH_NEXT(current_kernel, next_kernel) \
-    atomic_fetch_and_sub_uint32( \
-        &kernel_integrator_state.queue_counter->num_queued[current_kernel], 1); \
-    atomic_fetch_and_add_uint32(&kernel_integrator_state.queue_counter->num_queued[next_kernel], \
-                                1); \
-    INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel;
-#  define INTEGRATOR_PATH_TERMINATE(current_kernel) \
-    atomic_fetch_and_sub_uint32( \
-        &kernel_integrator_state.queue_counter->num_queued[current_kernel], 1); \
-    INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = 0;
-
-#  define INTEGRATOR_SHADOW_PATH_INIT(shadow_state, state, next_kernel, shadow_type) \
-    IntegratorShadowState shadow_state = atomic_fetch_and_add_uint32( \
-        &kernel_integrator_state.next_shadow_path_index[0], 1); \
-    atomic_fetch_and_add_uint32(&kernel_integrator_state.queue_counter->num_queued[next_kernel], \
-                                1); \
-    INTEGRATOR_STATE_WRITE(shadow_state, shadow_path, queued_kernel) = next_kernel;
-#  define INTEGRATOR_SHADOW_PATH_NEXT(current_kernel, next_kernel) \
-    atomic_fetch_and_sub_uint32( \
-        &kernel_integrator_state.queue_counter->num_queued[current_kernel], 1); \
-    atomic_fetch_and_add_uint32(&kernel_integrator_state.queue_counter->num_queued[next_kernel], \
-                                1); \
-    INTEGRATOR_STATE_WRITE(state, shadow_path, queued_kernel) = next_kernel;
-#  define INTEGRATOR_SHADOW_PATH_TERMINATE(current_kernel) \
-    atomic_fetch_and_sub_uint32( \
-        &kernel_integrator_state.queue_counter->num_queued[current_kernel], 1); \
-    INTEGRATOR_STATE_WRITE(state, shadow_path, queued_kernel) = 0;
-
-#  define INTEGRATOR_PATH_INIT_SORTED(next_kernel, key) \
-    { \
-      const int key_ = key; \
-      atomic_fetch_and_add_uint32( \
-          &kernel_integrator_state.queue_counter->num_queued[next_kernel], 1); \
-      INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel; \
-      INTEGRATOR_STATE_WRITE(state, path, shader_sort_key) = key_; \
-      atomic_fetch_and_add_uint32(&kernel_integrator_state.sort_key_counter[next_kernel][key_], \
-                                  1); \
-    }
-#  define INTEGRATOR_PATH_NEXT_SORTED(current_kernel, next_kernel, key) \
-    { \
-      const int key_ = key; \
-      atomic_fetch_and_sub_uint32( \
-          &kernel_integrator_state.queue_counter->num_queued[current_kernel], 1); \
-      atomic_fetch_and_add_uint32( \
-          &kernel_integrator_state.queue_counter->num_queued[next_kernel], 1); \
-      INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel; \
-      INTEGRATOR_STATE_WRITE(state, path, shader_sort_key) = key_; \
-      atomic_fetch_and_add_uint32(&kernel_integrator_state.sort_key_counter[next_kernel][key_], \
-                                  1); \
-    }
+ccl_device_forceinline void integrator_path_init(KernelGlobals kg,
+                                                 IntegratorState state,
+                                                 const DeviceKernel next_kernel)
+{
+  atomic_fetch_and_add_uint32(&kernel_integrator_state.queue_counter->num_queued[next_kernel], 1);
+  INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel;
+}
+
+ccl_device_forceinline void integrator_path_next(KernelGlobals kg,
+                                                 IntegratorState state,
+                                                 const DeviceKernel current_kernel,
+                                                 const DeviceKernel next_kernel)
+{
+  atomic_fetch_and_sub_uint32(&kernel_integrator_state.queue_counter->num_queued[current_kernel],
+                              1);
+  atomic_fetch_and_add_uint32(&kernel_integrator_state.queue_counter->num_queued[next_kernel], 1);
+  INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel;
+}
+
+ccl_device_forceinline void integrator_path_terminate(KernelGlobals kg,
+                                                      IntegratorState state,
+                                                      const DeviceKernel current_kernel)
+{
+  atomic_fetch_and_sub_uint32(&kernel_integrator_state.queue_counter->num_queued[current_kernel],
+                              1);
+  INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = 0;
+}
+
+ccl_device_forceinline IntegratorShadowState integrator_shadow_path_init(
+    KernelGlobals kg, IntegratorState state, const DeviceKernel next_kernel, const bool is_ao)
+{
+  IntegratorShadowState shadow_state = atomic_fetch_and_add_uint32(
+      &kernel_integrator_state.next_shadow_path_index[0], 1);
+  atomic_fetch_and_add_uint32(&kernel_integrator_state.queue_counter->num_queued[next_kernel], 1);
+  INTEGRATOR_STATE_WRITE(shadow_state, shadow_path, queued_kernel) = next_kernel;
+  return shadow_state;
+}
+
+ccl_device_forceinline void integrator_shadow_path_next(KernelGlobals kg,
+                                                        IntegratorShadowState state,
+                                                        const DeviceKernel current_kernel,
+                                                        const DeviceKernel next_kernel)
+{
+  atomic_fetch_and_sub_uint32(&kernel_integrator_state.queue_counter->num_queued[current_kernel],
+                              1);
+  atomic_fetch_and_add_uint32(&kernel_integrator_state.queue_counter->num_queued[next_kernel], 1);
+  INTEGRATOR_STATE_WRITE(state, shadow_path, queued_kernel) = next_kernel;
+}
+
+ccl_device_forceinline void integrator_shadow_path_terminate(KernelGlobals kg,
+                                                             IntegratorShadowState state,
+                                                             const DeviceKernel current_kernel)
+{
+  atomic_fetch_and_sub_uint32(&kernel_integrator_state.queue_counter->num_queued[current_kernel],
+                              1);
+  INTEGRATOR_STATE_WRITE(state, shadow_path, queued_kernel) = 0;
+}
+
+/* Sort first by truncated state index (for good locality), then by key (for good coherence). */
+#  define INTEGRATOR_SORT_KEY(key, state) \
+    (key + kernel_data.max_shaders * (state / kernel_integrator_state.sort_partition_divisor))
+
+ccl_device_forceinline void integrator_path_init_sorted(KernelGlobals kg,
+                                                        IntegratorState state,
+                                                        const DeviceKernel next_kernel,
+                                                        const uint32_t key)
+{
+  const int key_ = INTEGRATOR_SORT_KEY(key, state);
+  atomic_fetch_and_add_uint32(&kernel_integrator_state.queue_counter->num_queued[next_kernel], 1);
+  INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel;
+  INTEGRATOR_STATE_WRITE(state, path, shader_sort_key) = key_;
+  atomic_fetch_and_add_uint32(&kernel_integrator_state.sort_key_counter[next_kernel][key_], 1);
+}
+
+ccl_device_forceinline void integrator_path_next_sorted(KernelGlobals kg,
+                                                        IntegratorState state,
+                                                        const DeviceKernel current_kernel,
+                                                        const DeviceKernel next_kernel,
+                                                        const uint32_t key)
+{
+  const int key_ = INTEGRATOR_SORT_KEY(key, state);
+  atomic_fetch_and_sub_uint32(&kernel_integrator_state.queue_counter->num_queued[current_kernel],
+                              1);
+  atomic_fetch_and_add_uint32(&kernel_integrator_state.queue_counter->num_queued[next_kernel], 1);
+  INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel;
+  INTEGRATOR_STATE_WRITE(state, path, shader_sort_key) = key_;
+  atomic_fetch_and_add_uint32(&kernel_integrator_state.sort_key_counter[next_kernel][key_], 1);
+}
 
 #else
 
-#  define INTEGRATOR_PATH_INIT(next_kernel) \
-    INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel;
-#  define INTEGRATOR_PATH_INIT_SORTED(next_kernel, key) \
-    { \
-      INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel; \
-      (void)key; \
-    }
-#  define INTEGRATOR_PATH_NEXT(current_kernel, next_kernel) \
-    { \
-      INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel; \
-      (void)current_kernel; \
-    }
-#  define INTEGRATOR_PATH_TERMINATE(current_kernel) \
-    { \
-      INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = 0; \
-      (void)current_kernel; \
-    }
-#  define INTEGRATOR_PATH_NEXT_SORTED(current_kernel, next_kernel, key) \
-    { \
-      INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel; \
-      (void)key; \
-      (void)current_kernel; \
-    }
-
-#  define INTEGRATOR_SHADOW_PATH_INIT(shadow_state, state, next_kernel, shadow_type) \
-    IntegratorShadowState shadow_state = &state->shadow_type; \
-    INTEGRATOR_STATE_WRITE(shadow_state, shadow_path, queued_kernel) = next_kernel;
-#  define INTEGRATOR_SHADOW_PATH_NEXT(current_kernel, next_kernel) \
-    { \
-      INTEGRATOR_STATE_WRITE(state, shadow_path, queued_kernel) = next_kernel; \
-      (void)current_kernel; \
-    }
-#  define INTEGRATOR_SHADOW_PATH_TERMINATE(current_kernel) \
-    { \
-      INTEGRATOR_STATE_WRITE(state, shadow_path, queued_kernel) = 0; \
-      (void)current_kernel; \
-    }
+ccl_device_forceinline void integrator_path_init(KernelGlobals kg,
+                                                 IntegratorState state,
+                                                 const DeviceKernel next_kernel)
+{
+  INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel;
+}
+
+ccl_device_forceinline void integrator_path_init_sorted(KernelGlobals kg,
+                                                        IntegratorState state,
+                                                        const DeviceKernel next_kernel,
+                                                        const uint32_t key)
+{
+  INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel;
+  (void)key;
+}
+
+ccl_device_forceinline void integrator_path_next(KernelGlobals kg,
+                                                 IntegratorState state,
+                                                 const DeviceKernel current_kernel,
+                                                 const DeviceKernel next_kernel)
+{
+  INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel;
+  (void)current_kernel;
+}
+
+ccl_device_forceinline void integrator_path_terminate(KernelGlobals kg,
+                                                      IntegratorState state,
+                                                      const DeviceKernel current_kernel)
+{
+  INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = 0;
+  (void)current_kernel;
+}
+
+ccl_device_forceinline void integrator_path_next_sorted(KernelGlobals kg,
+                                                        IntegratorState state,
+                                                        const DeviceKernel current_kernel,
+                                                        const DeviceKernel next_kernel,
+                                                        const uint32_t key)
+{
+  INTEGRATOR_STATE_WRITE(state, path, queued_kernel) = next_kernel;
+  (void)key;
+  (void)current_kernel;
+}
+
+ccl_device_forceinline IntegratorShadowState integrator_shadow_path_init(
+    KernelGlobals kg, IntegratorState state, const DeviceKernel next_kernel, const bool is_ao)
+{
+  IntegratorShadowState shadow_state = (is_ao) ? &state->ao : &state->shadow;
+  INTEGRATOR_STATE_WRITE(shadow_state, shadow_path, queued_kernel) = next_kernel;
+  return shadow_state;
+}
+
+ccl_device_forceinline void integrator_shadow_path_next(KernelGlobals kg,
+                                                        IntegratorShadowState state,
+                                                        const DeviceKernel current_kernel,
+                                                        const DeviceKernel next_kernel)
+{
+  INTEGRATOR_STATE_WRITE(state, shadow_path, queued_kernel) = next_kernel;
+  (void)current_kernel;
+}
+
+ccl_device_forceinline void integrator_shadow_path_terminate(KernelGlobals kg,
+                                                             IntegratorShadowState state,
+                                                             const DeviceKernel current_kernel)
+{
+  INTEGRATOR_STATE_WRITE(state, shadow_path, queued_kernel) = 0;
+  (void)current_kernel;
+}
 
 #endif
 
diff --git a/intern/cycles/kernel/integrator/state_template.h b/intern/cycles/kernel/integrator/state_template.h
index e7e6db037b0..5c2af131945 100644
--- a/intern/cycles/kernel/integrator/state_template.h
+++ b/intern/cycles/kernel/integrator/state_template.h
@@ -37,11 +37,10 @@ KERNEL_STRUCT_MEMBER(path, uint32_t, flag, KERNEL_FEATURE_PATH_TRACING)
 /* enum PathRayMNEE */
 KERNEL_STRUCT_MEMBER(path, uint8_t, mnee, KERNEL_FEATURE_PATH_TRACING)
 /* Multiple importance sampling
- * The PDF of BSDF sampling at the last scatter point, and distance to the
- * last scatter point minus the last ray segment. This distance lets us
- * compute the complete distance through transparent surfaces and volumes. */
+ * The PDF of BSDF sampling at the last scatter point, which is at ray distance
+ * zero and distance. Note that transparency and volume attenuation increase
+ * the ray tmin but keep P unmodified so that this works. */
 KERNEL_STRUCT_MEMBER(path, float, mis_ray_pdf, KERNEL_FEATURE_PATH_TRACING)
-KERNEL_STRUCT_MEMBER(path, float, mis_ray_t, KERNEL_FEATURE_PATH_TRACING)
 /* Filter glossy. */
 KERNEL_STRUCT_MEMBER(path, float, min_ray_pdf, KERNEL_FEATURE_PATH_TRACING)
 /* Continuation probability for path termination. */
@@ -63,7 +62,8 @@ KERNEL_STRUCT_END(path)
 KERNEL_STRUCT_BEGIN(ray)
 KERNEL_STRUCT_MEMBER(ray, packed_float3, P, KERNEL_FEATURE_PATH_TRACING)
 KERNEL_STRUCT_MEMBER(ray, packed_float3, D, KERNEL_FEATURE_PATH_TRACING)
-KERNEL_STRUCT_MEMBER(ray, float, t, KERNEL_FEATURE_PATH_TRACING)
+KERNEL_STRUCT_MEMBER(ray, float, tmin, KERNEL_FEATURE_PATH_TRACING)
+KERNEL_STRUCT_MEMBER(ray, float, tmax, KERNEL_FEATURE_PATH_TRACING)
 KERNEL_STRUCT_MEMBER(ray, float, time, KERNEL_FEATURE_PATH_TRACING)
 KERNEL_STRUCT_MEMBER(ray, float, dP, KERNEL_FEATURE_PATH_TRACING)
 KERNEL_STRUCT_MEMBER(ray, float, dD, KERNEL_FEATURE_PATH_TRACING)
diff --git a/intern/cycles/kernel/integrator/state_util.h b/intern/cycles/kernel/integrator/state_util.h
index 280db2d1aac..8dd58ad6bcd 100644
--- a/intern/cycles/kernel/integrator/state_util.h
+++ b/intern/cycles/kernel/integrator/state_util.h
@@ -17,7 +17,8 @@ ccl_device_forceinline void integrator_state_write_ray(KernelGlobals kg,
 {
   INTEGRATOR_STATE_WRITE(state, ray, P) = ray->P;
   INTEGRATOR_STATE_WRITE(state, ray, D) = ray->D;
-  INTEGRATOR_STATE_WRITE(state, ray, t) = ray->t;
+  INTEGRATOR_STATE_WRITE(state, ray, tmin) = ray->tmin;
+  INTEGRATOR_STATE_WRITE(state, ray, tmax) = ray->tmax;
   INTEGRATOR_STATE_WRITE(state, ray, time) = ray->time;
   INTEGRATOR_STATE_WRITE(state, ray, dP) = ray->dP;
   INTEGRATOR_STATE_WRITE(state, ray, dD) = ray->dD;
@@ -29,7 +30,8 @@ ccl_device_forceinline void integrator_state_read_ray(KernelGlobals kg,
 {
   ray->P = INTEGRATOR_STATE(state, ray, P);
   ray->D = INTEGRATOR_STATE(state, ray, D);
-  ray->t = INTEGRATOR_STATE(state, ray, t);
+  ray->tmin = INTEGRATOR_STATE(state, ray, tmin);
+  ray->tmax = INTEGRATOR_STATE(state, ray, tmax);
   ray->time = INTEGRATOR_STATE(state, ray, time);
   ray->dP = INTEGRATOR_STATE(state, ray, dP);
   ray->dD = INTEGRATOR_STATE(state, ray, dD);
@@ -42,7 +44,8 @@ ccl_device_forceinline void integrator_state_write_shadow_ray(
 {
   INTEGRATOR_STATE_WRITE(state, shadow_ray, P) = ray->P;
   INTEGRATOR_STATE_WRITE(state, shadow_ray, D) = ray->D;
-  INTEGRATOR_STATE_WRITE(state, shadow_ray, t) = ray->t;
+  INTEGRATOR_STATE_WRITE(state, shadow_ray, tmin) = ray->tmin;
+  INTEGRATOR_STATE_WRITE(state, shadow_ray, tmax) = ray->tmax;
   INTEGRATOR_STATE_WRITE(state, shadow_ray, time) = ray->time;
   INTEGRATOR_STATE_WRITE(state, shadow_ray, dP) = ray->dP;
 }
@@ -53,7 +56,8 @@ ccl_device_forceinline void integrator_state_read_shadow_ray(KernelGlobals kg,
 {
   ray->P = INTEGRATOR_STATE(state, shadow_ray, P);
   ray->D = INTEGRATOR_STATE(state, shadow_ray, D);
-  ray->t = INTEGRATOR_STATE(state, shadow_ray, t);
+  ray->tmin = INTEGRATOR_STATE(state, shadow_ray, tmin);
+  ray->tmax = INTEGRATOR_STATE(state, shadow_ray, tmax);
   ray->time = INTEGRATOR_STATE(state, shadow_ray, time);
   ray->dP = INTEGRATOR_STATE(state, shadow_ray, dP);
   ray->dD = differential_zero_compact();
diff --git a/intern/cycles/kernel/integrator/subsurface.h b/intern/cycles/kernel/integrator/subsurface.h
index 1e6fcf4aff0..2f96f215d8a 100644
--- a/intern/cycles/kernel/integrator/subsurface.h
+++ b/intern/cycles/kernel/integrator/subsurface.h
@@ -38,7 +38,8 @@ ccl_device int subsurface_bounce(KernelGlobals kg,
   /* Setup ray into surface. */
   INTEGRATOR_STATE_WRITE(state, ray, P) = sd->P;
   INTEGRATOR_STATE_WRITE(state, ray, D) = bssrdf->N;
-  INTEGRATOR_STATE_WRITE(state, ray, t) = FLT_MAX;
+  INTEGRATOR_STATE_WRITE(state, ray, tmin) = 0.0f;
+  INTEGRATOR_STATE_WRITE(state, ray, tmax) = FLT_MAX;
   INTEGRATOR_STATE_WRITE(state, ray, dP) = differential_make_compact(sd->dP);
   INTEGRATOR_STATE_WRITE(state, ray, dD) = differential_zero_compact();
 
@@ -160,7 +161,7 @@ ccl_device_inline bool subsurface_scatter(KernelGlobals kg, IntegratorState stat
   /* Pretend ray is coming from the outside towards the exit point. This ensures
    * correct front/back facing normals.
    * TODO: find a more elegant solution? */
-  ray.P += ray.D * ray.t * 2.0f;
+  ray.P += ray.D * ray.tmax * 2.0f;
   ray.D = -ray.D;
 
   integrator_state_write_isect(kg, state, &ss_isect.hits[0]);
@@ -177,17 +178,23 @@ ccl_device_inline bool subsurface_scatter(KernelGlobals kg, IntegratorState stat
   const bool use_raytrace_kernel = (shader_flags & SD_HAS_RAYTRACE);
 
   if (use_caustics) {
-    INTEGRATOR_PATH_NEXT_SORTED(DEVICE_KERNEL_INTEGRATOR_INTERSECT_SUBSURFACE,
+    integrator_path_next_sorted(kg,
+                                state,
+                                DEVICE_KERNEL_INTEGRATOR_INTERSECT_SUBSURFACE,
                                 DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_MNEE,
                                 shader);
   }
   else if (use_raytrace_kernel) {
-    INTEGRATOR_PATH_NEXT_SORTED(DEVICE_KERNEL_INTEGRATOR_INTERSECT_SUBSURFACE,
+    integrator_path_next_sorted(kg,
+                                state,
+                                DEVICE_KERNEL_INTEGRATOR_INTERSECT_SUBSURFACE,
                                 DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE_RAYTRACE,
                                 shader);
   }
   else {
-    INTEGRATOR_PATH_NEXT_SORTED(DEVICE_KERNEL_INTEGRATOR_INTERSECT_SUBSURFACE,
+    integrator_path_next_sorted(kg,
+                                state,
+                                DEVICE_KERNEL_INTEGRATOR_INTERSECT_SUBSURFACE,
                                 DEVICE_KERNEL_INTEGRATOR_SHADE_SURFACE,
                                 shader);
   }
diff --git a/intern/cycles/kernel/integrator/subsurface_disk.h b/intern/cycles/kernel/integrator/subsurface_disk.h
index ae857c50493..2836934f6dd 100644
--- a/intern/cycles/kernel/integrator/subsurface_disk.h
+++ b/intern/cycles/kernel/integrator/subsurface_disk.h
@@ -82,7 +82,8 @@ ccl_device_inline bool subsurface_disk(KernelGlobals kg,
   /* Create ray. */
   ray.P = P + disk_N * disk_height + disk_P;
   ray.D = -disk_N;
-  ray.t = 2.0f * disk_height;
+  ray.tmin = 0.0f;
+  ray.tmax = 2.0f * disk_height;
   ray.dP = ray_dP;
   ray.dD = differential_zero_compact();
   ray.time = time;
@@ -188,7 +189,8 @@ ccl_device_inline bool subsurface_disk(KernelGlobals kg,
 
       ray.P = ray.P + ray.D * ss_isect.hits[hit].t;
       ray.D = ss_isect.Ng[hit];
-      ray.t = 1.0f;
+      ray.tmin = 0.0f;
+      ray.tmax = 1.0f;
       return true;
     }
 
diff --git a/intern/cycles/kernel/integrator/subsurface_random_walk.h b/intern/cycles/kernel/integrator/subsurface_random_walk.h
index 8094bf7159e..c1691030817 100644
--- a/intern/cycles/kernel/integrator/subsurface_random_walk.h
+++ b/intern/cycles/kernel/integrator/subsurface_random_walk.h
@@ -195,7 +195,8 @@ ccl_device_inline bool subsurface_random_walk(KernelGlobals kg,
   /* Setup ray. */
   ray.P = P;
   ray.D = D;
-  ray.t = FLT_MAX;
+  ray.tmin = 0.0f;
+  ray.tmax = FLT_MAX;
   ray.time = time;
   ray.dP = ray_dP;
   ray.dD = differential_zero_compact();
@@ -370,10 +371,10 @@ ccl_device_inline bool subsurface_random_walk(KernelGlobals kg,
      * chance of connecting to it.
      * TODO: Maybe use less than 10 times the mean free path? */
     if (bounce == 0) {
-      ray.t = max(t, 10.0f / (reduce_min(sigma_t)));
+      ray.tmax = max(t, 10.0f / (reduce_min(sigma_t)));
     }
     else {
-      ray.t = t;
+      ray.tmax = t;
       /* After the first bounce the object can intersect the same surface again */
       ray.self.object = OBJECT_NONE;
       ray.self.prim = PRIM_NONE;
@@ -384,12 +385,12 @@ ccl_device_inline bool subsurface_random_walk(KernelGlobals kg,
     if (hit) {
 #ifdef __KERNEL_GPU_RAYTRACING__
       /* t is always in world space with OptiX and MetalRT. */
-      ray.t = ss_isect.hits[0].t;
+      ray.tmax = ss_isect.hits[0].t;
 #else
       /* Compute world space distance to surface hit. */
       float3 D = transform_direction(&ob_itfm, ray.D);
       D = normalize(D) * ss_isect.hits[0].t;
-      ray.t = len(transform_direction(&ob_tfm, D));
+      ray.tmax = len(transform_direction(&ob_tfm, D));
 #endif
     }
 
@@ -397,16 +398,16 @@ ccl_device_inline bool subsurface_random_walk(KernelGlobals kg,
       /* Check if we hit the opposite side. */
       if (hit) {
         have_opposite_interface = true;
-        opposite_distance = dot(ray.P + ray.t * ray.D - P, -N);
+        opposite_distance = dot(ray.P + ray.tmax * ray.D - P, -N);
       }
       /* Apart from the opposite side check, we were supposed to only trace up to distance t,
        * so check if there would have been a hit in that case. */
-      hit = ray.t < t;
+      hit = ray.tmax < t;
     }
 
     /* Use the distance to the exit point for the throughput update if we found one. */
     if (hit) {
-      t = ray.t;
+      t = ray.tmax;
     }
 
     /* Advance to new scatter location. */
diff --git a/intern/cycles/kernel/light/light.h b/intern/cycles/kernel/light/light.h
index 1e7a333d013..b939489bb18 100644
--- a/intern/cycles/kernel/light/light.h
+++ b/intern/cycles/kernel/light/light.h
@@ -270,31 +270,26 @@ ccl_device bool lights_intersect(KernelGlobals kg,
 
     if (type == LIGHT_SPOT) {
       /* Spot/Disk light. */
-      const float mis_ray_t = INTEGRATOR_STATE(state, path, mis_ray_t);
-      const float3 ray_P = ray->P - ray->D * mis_ray_t;
-
       const float3 lightP = make_float3(klight->co[0], klight->co[1], klight->co[2]);
       const float radius = klight->spot.radius;
       if (radius == 0.0f) {
         continue;
       }
       /* disk oriented normal */
-      const float3 lightN = normalize(ray_P - lightP);
+      const float3 lightN = normalize(ray->P - lightP);
       /* One sided. */
       if (dot(ray->D, lightN) >= 0.0f) {
         continue;
       }
 
       float3 P;
-      if (!ray_disk_intersect(ray->P, ray->D, ray->t, lightP, lightN, radius, &P, &t)) {
+      if (!ray_disk_intersect(
+              ray->P, ray->D, ray->tmin, ray->tmax, lightP, lightN, radius, &P, &t)) {
         continue;
       }
     }
     else if (type == LIGHT_POINT) {
       /* Sphere light (aka, aligned disk light). */
-      const float mis_ray_t = INTEGRATOR_STATE(state, path, mis_ray_t);
-      const float3 ray_P = ray->P - ray->D * mis_ray_t;
-
       const float3 lightP = make_float3(klight->co[0], klight->co[1], klight->co[2]);
       const float radius = klight->spot.radius;
       if (radius == 0.0f) {
@@ -302,9 +297,10 @@ ccl_device bool lights_intersect(KernelGlobals kg,
       }
 
       /* disk oriented normal */
-      const float3 lightN = normalize(ray_P - lightP);
+      const float3 lightN = normalize(ray->P - lightP);
       float3 P;
-      if (!ray_disk_intersect(ray->P, ray->D, ray->t, lightP, lightN, radius, &P, &t)) {
+      if (!ray_disk_intersect(
+              ray->P, ray->D, ray->tmin, ray->tmax, lightP, lightN, radius, &P, &t)) {
         continue;
       }
     }
@@ -330,8 +326,19 @@ ccl_device bool lights_intersect(KernelGlobals kg,
       const float3 light_P = make_float3(klight->co[0], klight->co[1], klight->co[2]);
 
       float3 P;
-      if (!ray_quad_intersect(
-              ray->P, ray->D, 0.0f, ray->t, light_P, axisu, axisv, Ng, &P, &t, &u, &v, is_round)) {
+      if (!ray_quad_intersect(ray->P,
+                              ray->D,
+                              ray->tmin,
+                              ray->tmax,
+                              light_P,
+                              axisu,
+                              axisv,
+                              Ng,
+                              &P,
+                              &t,
+                              &u,
+                              &v,
+                              is_round)) {
         continue;
       }
     }
@@ -775,7 +782,8 @@ ccl_device_forceinline void triangle_light_sample(KernelGlobals kg,
     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, V[0], V[1], V[2], &ls->u, &ls->v, &ls->t)) {
+    if (!ray_triangle_intersect(
+            P, ls->D, 0.0f, FLT_MAX, V[0], V[1], V[2], &ls->u, &ls->v, &ls->t)) {
       ls->pdf = 0.0f;
       return;
     }
diff --git a/intern/cycles/kernel/light/sample.h b/intern/cycles/kernel/light/sample.h
index 5cf7dce683a..210bb1b35c2 100644
--- a/intern/cycles/kernel/light/sample.h
+++ b/intern/cycles/kernel/light/sample.h
@@ -227,23 +227,24 @@ ccl_device_inline void shadow_ray_setup(ccl_private const ShaderData *ccl_restri
   if (ls->shader & SHADER_CAST_SHADOW) {
     /* setup ray */
     ray->P = P;
+    ray->tmin = 0.0f;
 
     if (ls->t == FLT_MAX) {
       /* distant light */
       ray->D = ls->D;
-      ray->t = ls->t;
+      ray->tmax = ls->t;
     }
     else {
       /* other lights, avoid self-intersection */
       ray->D = ls->P - P;
-      ray->D = normalize_len(ray->D, &ray->t);
+      ray->D = normalize_len(ray->D, &ray->tmax);
     }
   }
   else {
     /* signal to not cast shadow ray */
     ray->P = zero_float3();
     ray->D = zero_float3();
-    ray->t = 0.0f;
+    ray->tmax = 0.0f;
   }
 
   ray->dP = differential_make_compact(sd->dP);
diff --git a/intern/cycles/kernel/osl/services.cpp b/intern/cycles/kernel/osl/services.cpp
index 78c23b858c4..6b7981b7f3a 100644
--- a/intern/cycles/kernel/osl/services.cpp
+++ b/intern/cycles/kernel/osl/services.cpp
@@ -1094,10 +1094,8 @@ bool OSLRenderServices::get_background_attribute(const KernelGlobalsCPU *kg,
       ndc[0] = camera_world_to_ndc(kg, sd, sd->ray_P);
 
       if (derivatives) {
-        ndc[1] = camera_world_to_ndc(kg, sd, sd->ray_P + make_float3(sd->ray_dP, 0.0f, 0.0f)) -
-                 ndc[0];
-        ndc[2] = camera_world_to_ndc(kg, sd, sd->ray_P + make_float3(0.0f, sd->ray_dP, 0.0f)) -
-                 ndc[0];
+        ndc[1] = zero_float3();
+        ndc[2] = zero_float3();
       }
     }
     else {
@@ -1671,7 +1669,8 @@ bool OSLRenderServices::trace(TraceOpt &options,
 
   ray.P = TO_FLOAT3(P);
   ray.D = TO_FLOAT3(R);
-  ray.t = (options.maxdist == 1.0e30f) ? FLT_MAX : options.maxdist - options.mindist;
+  ray.tmin = 0.0f;
+  ray.tmax = (options.maxdist == 1.0e30f) ? FLT_MAX : options.maxdist - options.mindist;
   ray.time = sd->time;
   ray.self.object = OBJECT_NONE;
   ray.self.prim = PRIM_NONE;
diff --git a/intern/cycles/kernel/svm/ao.h b/intern/cycles/kernel/svm/ao.h
index e66c535824c..c57c68d6230 100644
--- a/intern/cycles/kernel/svm/ao.h
+++ b/intern/cycles/kernel/svm/ao.h
@@ -59,7 +59,8 @@ ccl_device float svm_ao(
     Ray ray;
     ray.P = sd->P;
     ray.D = D.x * T + D.y * B + D.z * N;
-    ray.t = max_dist;
+    ray.tmin = 0.0f;
+    ray.tmax = max_dist;
     ray.time = sd->time;
     ray.self.object = sd->object;
     ray.self.prim = sd->prim;
diff --git a/intern/cycles/kernel/svm/bevel.h b/intern/cycles/kernel/svm/bevel.h
index 790437d8e82..4617a056a52 100644
--- a/intern/cycles/kernel/svm/bevel.h
+++ b/intern/cycles/kernel/svm/bevel.h
@@ -179,7 +179,8 @@ ccl_device float3 svm_bevel(
     Ray ray ccl_optional_struct_init;
     ray.P = sd->P + disk_N * disk_height + disk_P;
     ray.D = -disk_N;
-    ray.t = 2.0f * disk_height;
+    ray.tmin = 0.0f;
+    ray.tmax = 2.0f * disk_height;
     ray.dP = differential_zero_compact();
     ray.dD = differential_zero_compact();
     ray.time = sd->time;
diff --git a/intern/cycles/kernel/svm/node_types_template.h b/intern/cycles/kernel/svm/node_types_template.h
new file mode 100644
index 00000000000..39d279be4cb
--- /dev/null
+++ b/intern/cycles/kernel/svm/node_types_template.h
@@ -0,0 +1,110 @@
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2011-2022 Blender Foundation */
+
+#ifndef SHADER_NODE_TYPE
+#  define SHADER_NODE_TYPE(name)
+#endif
+
+/* NOTE: for best OpenCL performance, item definition in the enum must
+ * match the switch case order in `svm.h`. */
+
+SHADER_NODE_TYPE(NODE_END)
+SHADER_NODE_TYPE(NODE_SHADER_JUMP)
+SHADER_NODE_TYPE(NODE_CLOSURE_BSDF)
+SHADER_NODE_TYPE(NODE_CLOSURE_EMISSION)
+SHADER_NODE_TYPE(NODE_CLOSURE_BACKGROUND)
+SHADER_NODE_TYPE(NODE_CLOSURE_SET_WEIGHT)
+SHADER_NODE_TYPE(NODE_CLOSURE_WEIGHT)
+SHADER_NODE_TYPE(NODE_EMISSION_WEIGHT)
+SHADER_NODE_TYPE(NODE_MIX_CLOSURE)
+SHADER_NODE_TYPE(NODE_JUMP_IF_ZERO)
+SHADER_NODE_TYPE(NODE_JUMP_IF_ONE)
+SHADER_NODE_TYPE(NODE_GEOMETRY)
+SHADER_NODE_TYPE(NODE_CONVERT)
+SHADER_NODE_TYPE(NODE_TEX_COORD)
+SHADER_NODE_TYPE(NODE_VALUE_F)
+SHADER_NODE_TYPE(NODE_VALUE_V)
+SHADER_NODE_TYPE(NODE_ATTR)
+SHADER_NODE_TYPE(NODE_VERTEX_COLOR)
+SHADER_NODE_TYPE(NODE_GEOMETRY_BUMP_DX)
+SHADER_NODE_TYPE(NODE_GEOMETRY_BUMP_DY)
+SHADER_NODE_TYPE(NODE_SET_DISPLACEMENT)
+SHADER_NODE_TYPE(NODE_DISPLACEMENT)
+SHADER_NODE_TYPE(NODE_VECTOR_DISPLACEMENT)
+SHADER_NODE_TYPE(NODE_TEX_IMAGE)
+SHADER_NODE_TYPE(NODE_TEX_IMAGE_BOX)
+SHADER_NODE_TYPE(NODE_TEX_NOISE)
+SHADER_NODE_TYPE(NODE_SET_BUMP)
+SHADER_NODE_TYPE(NODE_ATTR_BUMP_DX)
+SHADER_NODE_TYPE(NODE_ATTR_BUMP_DY)
+SHADER_NODE_TYPE(NODE_VERTEX_COLOR_BUMP_DX)
+SHADER_NODE_TYPE(NODE_VERTEX_COLOR_BUMP_DY)
+SHADER_NODE_TYPE(NODE_TEX_COORD_BUMP_DX)
+SHADER_NODE_TYPE(NODE_TEX_COORD_BUMP_DY)
+SHADER_NODE_TYPE(NODE_CLOSURE_SET_NORMAL)
+SHADER_NODE_TYPE(NODE_ENTER_BUMP_EVAL)
+SHADER_NODE_TYPE(NODE_LEAVE_BUMP_EVAL)
+SHADER_NODE_TYPE(NODE_HSV)
+SHADER_NODE_TYPE(NODE_CLOSURE_HOLDOUT)
+SHADER_NODE_TYPE(NODE_FRESNEL)
+SHADER_NODE_TYPE(NODE_LAYER_WEIGHT)
+SHADER_NODE_TYPE(NODE_CLOSURE_VOLUME)
+SHADER_NODE_TYPE(NODE_PRINCIPLED_VOLUME)
+SHADER_NODE_TYPE(NODE_MATH)
+SHADER_NODE_TYPE(NODE_VECTOR_MATH)
+SHADER_NODE_TYPE(NODE_RGB_RAMP)
+SHADER_NODE_TYPE(NODE_GAMMA)
+SHADER_NODE_TYPE(NODE_BRIGHTCONTRAST)
+SHADER_NODE_TYPE(NODE_LIGHT_PATH)
+SHADER_NODE_TYPE(NODE_OBJECT_INFO)
+SHADER_NODE_TYPE(NODE_PARTICLE_INFO)
+SHADER_NODE_TYPE(NODE_HAIR_INFO)
+SHADER_NODE_TYPE(NODE_POINT_INFO)
+SHADER_NODE_TYPE(NODE_TEXTURE_MAPPING)
+SHADER_NODE_TYPE(NODE_MAPPING)
+SHADER_NODE_TYPE(NODE_MIN_MAX)
+SHADER_NODE_TYPE(NODE_CAMERA)
+SHADER_NODE_TYPE(NODE_TEX_ENVIRONMENT)
+SHADER_NODE_TYPE(NODE_TEX_SKY)
+SHADER_NODE_TYPE(NODE_TEX_GRADIENT)
+SHADER_NODE_TYPE(NODE_TEX_VORONOI)
+SHADER_NODE_TYPE(NODE_TEX_MUSGRAVE)
+SHADER_NODE_TYPE(NODE_TEX_WAVE)
+SHADER_NODE_TYPE(NODE_TEX_MAGIC)
+SHADER_NODE_TYPE(NODE_TEX_CHECKER)
+SHADER_NODE_TYPE(NODE_TEX_BRICK)
+SHADER_NODE_TYPE(NODE_TEX_WHITE_NOISE)
+SHADER_NODE_TYPE(NODE_NORMAL)
+SHADER_NODE_TYPE(NODE_LIGHT_FALLOFF)
+SHADER_NODE_TYPE(NODE_IES)
+SHADER_NODE_TYPE(NODE_CURVES)
+SHADER_NODE_TYPE(NODE_TANGENT)
+SHADER_NODE_TYPE(NODE_NORMAL_MAP)
+SHADER_NODE_TYPE(NODE_INVERT)
+SHADER_NODE_TYPE(NODE_MIX)
+SHADER_NODE_TYPE(NODE_SEPARATE_COLOR)
+SHADER_NODE_TYPE(NODE_COMBINE_COLOR)
+SHADER_NODE_TYPE(NODE_SEPARATE_VECTOR)
+SHADER_NODE_TYPE(NODE_COMBINE_VECTOR)
+SHADER_NODE_TYPE(NODE_SEPARATE_HSV)
+SHADER_NODE_TYPE(NODE_COMBINE_HSV)
+SHADER_NODE_TYPE(NODE_VECTOR_ROTATE)
+SHADER_NODE_TYPE(NODE_VECTOR_TRANSFORM)
+SHADER_NODE_TYPE(NODE_WIREFRAME)
+SHADER_NODE_TYPE(NODE_WAVELENGTH)
+SHADER_NODE_TYPE(NODE_BLACKBODY)
+SHADER_NODE_TYPE(NODE_MAP_RANGE)
+SHADER_NODE_TYPE(NODE_VECTOR_MAP_RANGE)
+SHADER_NODE_TYPE(NODE_CLAMP)
+SHADER_NODE_TYPE(NODE_BEVEL)
+SHADER_NODE_TYPE(NODE_AMBIENT_OCCLUSION)
+SHADER_NODE_TYPE(NODE_TEX_VOXEL)
+SHADER_NODE_TYPE(NODE_AOV_START)
+SHADER_NODE_TYPE(NODE_AOV_COLOR)
+SHADER_NODE_TYPE(NODE_AOV_VALUE)
+SHADER_NODE_TYPE(NODE_FLOAT_CURVE)
+
+/* Padding for struct alignment. */
+SHADER_NODE_TYPE(NODE_PAD1)
+
+#undef SHADER_NODE_TYPE
diff --git a/intern/cycles/kernel/svm/svm.h b/intern/cycles/kernel/svm/svm.h
index 8fd41ec8531..9d6d3e9222c 100644
--- a/intern/cycles/kernel/svm/svm.h
+++ b/intern/cycles/kernel/svm/svm.h
@@ -204,6 +204,15 @@ CCL_NAMESPACE_END
 
 CCL_NAMESPACE_BEGIN
 
+#ifdef __KERNEL_USE_DATA_CONSTANTS__
+#  define SVM_CASE(node) \
+    case node: \
+      if (!kernel_data_svm_usage_##node) \
+        break;
+#else
+#  define SVM_CASE(node) case node:
+#endif
+
 /* Main Interpreter Loop */
 template<uint node_feature_mask, ShaderType type, typename ConstIntegratorGenericState>
 ccl_device void svm_eval_nodes(KernelGlobals kg,
@@ -219,9 +228,10 @@ ccl_device void svm_eval_nodes(KernelGlobals kg,
     uint4 node = read_node(kg, &offset);
 
     switch (node.x) {
-      case NODE_END:
-        return;
-      case NODE_SHADER_JUMP: {
+      SVM_CASE(NODE_END)
+      return;
+      SVM_CASE(NODE_SHADER_JUMP)
+      {
         if (type == SHADER_TYPE_SURFACE)
           offset = node.y;
         else if (type == SHADER_TYPE_VOLUME)
@@ -232,351 +242,349 @@ ccl_device void svm_eval_nodes(KernelGlobals kg,
           return;
         break;
       }
-      case NODE_CLOSURE_BSDF:
-        offset = svm_node_closure_bsdf<node_feature_mask, type>(
-            kg, sd, stack, node, path_flag, offset);
-        break;
-      case NODE_CLOSURE_EMISSION:
-        IF_KERNEL_NODES_FEATURE(EMISSION)
-        {
-          svm_node_closure_emission(sd, stack, node);
-        }
-        break;
-      case NODE_CLOSURE_BACKGROUND:
-        IF_KERNEL_NODES_FEATURE(EMISSION)
-        {
-          svm_node_closure_background(sd, stack, node);
-        }
-        break;
-      case NODE_CLOSURE_SET_WEIGHT:
-        svm_node_closure_set_weight(sd, node.y, node.z, node.w);
-        break;
-      case NODE_CLOSURE_WEIGHT:
-        svm_node_closure_weight(sd, stack, node.y);
-        break;
-      case NODE_EMISSION_WEIGHT:
-        IF_KERNEL_NODES_FEATURE(EMISSION)
-        {
-          svm_node_emission_weight(kg, sd, stack, node);
-        }
-        break;
-      case NODE_MIX_CLOSURE:
-        svm_node_mix_closure(sd, stack, node);
-        break;
-      case NODE_JUMP_IF_ZERO:
-        if (stack_load_float(stack, node.z) <= 0.0f)
-          offset += node.y;
-        break;
-      case NODE_JUMP_IF_ONE:
-        if (stack_load_float(stack, node.z) >= 1.0f)
-          offset += node.y;
-        break;
-      case NODE_GEOMETRY:
-        svm_node_geometry(kg, sd, stack, node.y, node.z);
-        break;
-      case NODE_CONVERT:
-        svm_node_convert(kg, sd, stack, node.y, node.z, node.w);
-        break;
-      case NODE_TEX_COORD:
-        offset = svm_node_tex_coord(kg, sd, path_flag, stack, node, offset);
-        break;
-      case NODE_VALUE_F:
-        svm_node_value_f(kg, sd, stack, node.y, node.z);
-        break;
-      case NODE_VALUE_V:
-        offset = svm_node_value_v(kg, sd, stack, node.y, offset);
-        break;
-      case NODE_ATTR:
-        svm_node_attr<node_feature_mask>(kg, sd, stack, node);
-        break;
-      case NODE_VERTEX_COLOR:
-        svm_node_vertex_color(kg, sd, stack, node.y, node.z, node.w);
-        break;
-      case NODE_GEOMETRY_BUMP_DX:
-        IF_KERNEL_NODES_FEATURE(BUMP)
-        {
-          svm_node_geometry_bump_dx(kg, sd, stack, node.y, node.z);
-        }
-        break;
-      case NODE_GEOMETRY_BUMP_DY:
-        IF_KERNEL_NODES_FEATURE(BUMP)
-        {
-          svm_node_geometry_bump_dy(kg, sd, stack, node.y, node.z);
-        }
-        break;
-      case NODE_SET_DISPLACEMENT:
-        svm_node_set_displacement<node_feature_mask>(kg, sd, stack, node.y);
-        break;
-      case NODE_DISPLACEMENT:
-        svm_node_displacement<node_feature_mask>(kg, sd, stack, node);
-        break;
-      case NODE_VECTOR_DISPLACEMENT:
-        offset = svm_node_vector_displacement<node_feature_mask>(kg, sd, stack, node, offset);
-        break;
-      case NODE_TEX_IMAGE:
-        offset = svm_node_tex_image(kg, sd, stack, node, offset);
-        break;
-      case NODE_TEX_IMAGE_BOX:
-        svm_node_tex_image_box(kg, sd, stack, node);
-        break;
-      case NODE_TEX_NOISE:
-        offset = svm_node_tex_noise(kg, sd, stack, node.y, node.z, node.w, offset);
-        break;
-      case NODE_SET_BUMP:
-        svm_node_set_bump<node_feature_mask>(kg, sd, stack, node);
-        break;
-      case NODE_ATTR_BUMP_DX:
-        IF_KERNEL_NODES_FEATURE(BUMP)
-        {
-          svm_node_attr_bump_dx(kg, sd, stack, node);
-        }
-        break;
-      case NODE_ATTR_BUMP_DY:
-        IF_KERNEL_NODES_FEATURE(BUMP)
-        {
-          svm_node_attr_bump_dy(kg, sd, stack, node);
-        }
-        break;
-      case NODE_VERTEX_COLOR_BUMP_DX:
-        IF_KERNEL_NODES_FEATURE(BUMP)
-        {
-          svm_node_vertex_color_bump_dx(kg, sd, stack, node.y, node.z, node.w);
-        }
-        break;
-      case NODE_VERTEX_COLOR_BUMP_DY:
-        IF_KERNEL_NODES_FEATURE(BUMP)
-        {
-          svm_node_vertex_color_bump_dy(kg, sd, stack, node.y, node.z, node.w);
-        }
-        break;
-      case NODE_TEX_COORD_BUMP_DX:
-        IF_KERNEL_NODES_FEATURE(BUMP)
-        {
-          offset = svm_node_tex_coord_bump_dx(kg, sd, path_flag, stack, node, offset);
-        }
-        break;
-      case NODE_TEX_COORD_BUMP_DY:
-        IF_KERNEL_NODES_FEATURE(BUMP)
-        {
-          offset = svm_node_tex_coord_bump_dy(kg, sd, path_flag, stack, node, offset);
-        }
-        break;
-      case NODE_CLOSURE_SET_NORMAL:
-        IF_KERNEL_NODES_FEATURE(BUMP)
-        {
-          svm_node_set_normal(kg, sd, stack, node.y, node.z);
-        }
-        break;
-      case NODE_ENTER_BUMP_EVAL:
-        IF_KERNEL_NODES_FEATURE(BUMP_STATE)
-        {
-          svm_node_enter_bump_eval(kg, sd, stack, node.y);
-        }
-        break;
-      case NODE_LEAVE_BUMP_EVAL:
-        IF_KERNEL_NODES_FEATURE(BUMP_STATE)
-        {
-          svm_node_leave_bump_eval(kg, sd, stack, node.y);
-        }
-        break;
-      case NODE_HSV:
-        svm_node_hsv(kg, sd, stack, node);
-        break;
-
-      case NODE_CLOSURE_HOLDOUT:
-        svm_node_closure_holdout(sd, stack, node);
-        break;
-      case NODE_FRESNEL:
-        svm_node_fresnel(sd, stack, node.y, node.z, node.w);
-        break;
-      case NODE_LAYER_WEIGHT:
-        svm_node_layer_weight(sd, stack, node);
-        break;
-      case NODE_CLOSURE_VOLUME:
-        IF_KERNEL_NODES_FEATURE(VOLUME)
-        {
-          svm_node_closure_volume<type>(kg, sd, stack, node);
-        }
-        break;
-      case NODE_PRINCIPLED_VOLUME:
-        IF_KERNEL_NODES_FEATURE(VOLUME)
-        {
-          offset = svm_node_principled_volume<type>(kg, sd, stack, node, path_flag, offset);
-        }
-        break;
-      case NODE_MATH:
-        svm_node_math(kg, sd, stack, node.y, node.z, node.w);
-        break;
-      case NODE_VECTOR_MATH:
-        offset = svm_node_vector_math(kg, sd, stack, node.y, node.z, node.w, offset);
-        break;
-      case NODE_RGB_RAMP:
-        offset = svm_node_rgb_ramp(kg, sd, stack, node, offset);
-        break;
-      case NODE_GAMMA:
-        svm_node_gamma(sd, stack, node.y, node.z, node.w);
-        break;
-      case NODE_BRIGHTCONTRAST:
-        svm_node_brightness(sd, stack, node.y, node.z, node.w);
-        break;
-      case NODE_LIGHT_PATH:
-        svm_node_light_path<node_feature_mask>(kg, state, sd, stack, node.y, node.z, path_flag);
-        break;
-      case NODE_OBJECT_INFO:
-        svm_node_object_info(kg, sd, stack, node.y, node.z);
-        break;
-      case NODE_PARTICLE_INFO:
-        svm_node_particle_info(kg, sd, stack, node.y, node.z);
-        break;
+      SVM_CASE(NODE_CLOSURE_BSDF)
+      offset = svm_node_closure_bsdf<node_feature_mask, type>(
+          kg, sd, stack, node, path_flag, offset);
+      break;
+      SVM_CASE(NODE_CLOSURE_EMISSION)
+      IF_KERNEL_NODES_FEATURE(EMISSION)
+      {
+        svm_node_closure_emission(sd, stack, node);
+      }
+      break;
+      SVM_CASE(NODE_CLOSURE_BACKGROUND)
+      IF_KERNEL_NODES_FEATURE(EMISSION)
+      {
+        svm_node_closure_background(sd, stack, node);
+      }
+      break;
+      SVM_CASE(NODE_CLOSURE_SET_WEIGHT)
+      svm_node_closure_set_weight(sd, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_CLOSURE_WEIGHT)
+      svm_node_closure_weight(sd, stack, node.y);
+      break;
+      SVM_CASE(NODE_EMISSION_WEIGHT)
+      IF_KERNEL_NODES_FEATURE(EMISSION)
+      {
+        svm_node_emission_weight(kg, sd, stack, node);
+      }
+      break;
+      SVM_CASE(NODE_MIX_CLOSURE)
+      svm_node_mix_closure(sd, stack, node);
+      break;
+      SVM_CASE(NODE_JUMP_IF_ZERO)
+      if (stack_load_float(stack, node.z) <= 0.0f)
+        offset += node.y;
+      break;
+      SVM_CASE(NODE_JUMP_IF_ONE)
+      if (stack_load_float(stack, node.z) >= 1.0f)
+        offset += node.y;
+      break;
+      SVM_CASE(NODE_GEOMETRY)
+      svm_node_geometry(kg, sd, stack, node.y, node.z);
+      break;
+      SVM_CASE(NODE_CONVERT)
+      svm_node_convert(kg, sd, stack, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_TEX_COORD)
+      offset = svm_node_tex_coord(kg, sd, path_flag, stack, node, offset);
+      break;
+      SVM_CASE(NODE_VALUE_F)
+      svm_node_value_f(kg, sd, stack, node.y, node.z);
+      break;
+      SVM_CASE(NODE_VALUE_V)
+      offset = svm_node_value_v(kg, sd, stack, node.y, offset);
+      break;
+      SVM_CASE(NODE_ATTR)
+      svm_node_attr<node_feature_mask>(kg, sd, stack, node);
+      break;
+      SVM_CASE(NODE_VERTEX_COLOR)
+      svm_node_vertex_color(kg, sd, stack, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_GEOMETRY_BUMP_DX)
+      IF_KERNEL_NODES_FEATURE(BUMP)
+      {
+        svm_node_geometry_bump_dx(kg, sd, stack, node.y, node.z);
+      }
+      break;
+      SVM_CASE(NODE_GEOMETRY_BUMP_DY)
+      IF_KERNEL_NODES_FEATURE(BUMP)
+      {
+        svm_node_geometry_bump_dy(kg, sd, stack, node.y, node.z);
+      }
+      break;
+      SVM_CASE(NODE_SET_DISPLACEMENT)
+      svm_node_set_displacement<node_feature_mask>(kg, sd, stack, node.y);
+      break;
+      SVM_CASE(NODE_DISPLACEMENT)
+      svm_node_displacement<node_feature_mask>(kg, sd, stack, node);
+      break;
+      SVM_CASE(NODE_VECTOR_DISPLACEMENT)
+      offset = svm_node_vector_displacement<node_feature_mask>(kg, sd, stack, node, offset);
+      break;
+      SVM_CASE(NODE_TEX_IMAGE)
+      offset = svm_node_tex_image(kg, sd, stack, node, offset);
+      break;
+      SVM_CASE(NODE_TEX_IMAGE_BOX)
+      svm_node_tex_image_box(kg, sd, stack, node);
+      break;
+      SVM_CASE(NODE_TEX_NOISE)
+      offset = svm_node_tex_noise(kg, sd, stack, node.y, node.z, node.w, offset);
+      break;
+      SVM_CASE(NODE_SET_BUMP)
+      svm_node_set_bump<node_feature_mask>(kg, sd, stack, node);
+      break;
+      SVM_CASE(NODE_ATTR_BUMP_DX)
+      IF_KERNEL_NODES_FEATURE(BUMP)
+      {
+        svm_node_attr_bump_dx(kg, sd, stack, node);
+      }
+      break;
+      SVM_CASE(NODE_ATTR_BUMP_DY)
+      IF_KERNEL_NODES_FEATURE(BUMP)
+      {
+        svm_node_attr_bump_dy(kg, sd, stack, node);
+      }
+      break;
+      SVM_CASE(NODE_VERTEX_COLOR_BUMP_DX)
+      IF_KERNEL_NODES_FEATURE(BUMP)
+      {
+        svm_node_vertex_color_bump_dx(kg, sd, stack, node.y, node.z, node.w);
+      }
+      break;
+      SVM_CASE(NODE_VERTEX_COLOR_BUMP_DY)
+      IF_KERNEL_NODES_FEATURE(BUMP)
+      {
+        svm_node_vertex_color_bump_dy(kg, sd, stack, node.y, node.z, node.w);
+      }
+      break;
+      SVM_CASE(NODE_TEX_COORD_BUMP_DX)
+      IF_KERNEL_NODES_FEATURE(BUMP)
+      {
+        offset = svm_node_tex_coord_bump_dx(kg, sd, path_flag, stack, node, offset);
+      }
+      break;
+      SVM_CASE(NODE_TEX_COORD_BUMP_DY)
+      IF_KERNEL_NODES_FEATURE(BUMP)
+      {
+        offset = svm_node_tex_coord_bump_dy(kg, sd, path_flag, stack, node, offset);
+      }
+      break;
+      SVM_CASE(NODE_CLOSURE_SET_NORMAL)
+      IF_KERNEL_NODES_FEATURE(BUMP)
+      {
+        svm_node_set_normal(kg, sd, stack, node.y, node.z);
+      }
+      break;
+      SVM_CASE(NODE_ENTER_BUMP_EVAL)
+      IF_KERNEL_NODES_FEATURE(BUMP_STATE)
+      {
+        svm_node_enter_bump_eval(kg, sd, stack, node.y);
+      }
+      break;
+      SVM_CASE(NODE_LEAVE_BUMP_EVAL)
+      IF_KERNEL_NODES_FEATURE(BUMP_STATE)
+      {
+        svm_node_leave_bump_eval(kg, sd, stack, node.y);
+      }
+      break;
+      SVM_CASE(NODE_HSV)
+      svm_node_hsv(kg, sd, stack, node);
+      break;
+      SVM_CASE(NODE_CLOSURE_HOLDOUT)
+      svm_node_closure_holdout(sd, stack, node);
+      break;
+      SVM_CASE(NODE_FRESNEL)
+      svm_node_fresnel(sd, stack, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_LAYER_WEIGHT)
+      svm_node_layer_weight(sd, stack, node);
+      break;
+      SVM_CASE(NODE_CLOSURE_VOLUME)
+      IF_KERNEL_NODES_FEATURE(VOLUME)
+      {
+        svm_node_closure_volume<type>(kg, sd, stack, node);
+      }
+      break;
+      SVM_CASE(NODE_PRINCIPLED_VOLUME)
+      IF_KERNEL_NODES_FEATURE(VOLUME)
+      {
+        offset = svm_node_principled_volume<type>(kg, sd, stack, node, path_flag, offset);
+      }
+      break;
+      SVM_CASE(NODE_MATH)
+      svm_node_math(kg, sd, stack, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_VECTOR_MATH)
+      offset = svm_node_vector_math(kg, sd, stack, node.y, node.z, node.w, offset);
+      break;
+      SVM_CASE(NODE_RGB_RAMP)
+      offset = svm_node_rgb_ramp(kg, sd, stack, node, offset);
+      break;
+      SVM_CASE(NODE_GAMMA)
+      svm_node_gamma(sd, stack, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_BRIGHTCONTRAST)
+      svm_node_brightness(sd, stack, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_LIGHT_PATH)
+      svm_node_light_path<node_feature_mask>(kg, state, sd, stack, node.y, node.z, path_flag);
+      break;
+      SVM_CASE(NODE_OBJECT_INFO)
+      svm_node_object_info(kg, sd, stack, node.y, node.z);
+      break;
+      SVM_CASE(NODE_PARTICLE_INFO)
+      svm_node_particle_info(kg, sd, stack, node.y, node.z);
+      break;
 #if defined(__HAIR__)
-      case NODE_HAIR_INFO:
-        svm_node_hair_info(kg, sd, stack, node.y, node.z);
-        break;
+      SVM_CASE(NODE_HAIR_INFO)
+      svm_node_hair_info(kg, sd, stack, node.y, node.z);
+      break;
 #endif
 #if defined(__POINTCLOUD__)
-      case NODE_POINT_INFO:
-        svm_node_point_info(kg, sd, stack, node.y, node.z);
-        break;
+      SVM_CASE(NODE_POINT_INFO)
+      svm_node_point_info(kg, sd, stack, node.y, node.z);
+      break;
 #endif
-      case NODE_TEXTURE_MAPPING:
-        offset = svm_node_texture_mapping(kg, sd, stack, node.y, node.z, offset);
-        break;
-      case NODE_MAPPING:
-        svm_node_mapping(kg, sd, stack, node.y, node.z, node.w);
-        break;
-      case NODE_MIN_MAX:
-        offset = svm_node_min_max(kg, sd, stack, node.y, node.z, offset);
-        break;
-      case NODE_CAMERA:
-        svm_node_camera(kg, sd, stack, node.y, node.z, node.w);
-        break;
-      case NODE_TEX_ENVIRONMENT:
-        svm_node_tex_environment(kg, sd, stack, node);
-        break;
-      case NODE_TEX_SKY:
-        offset = svm_node_tex_sky(kg, sd, stack, node, offset);
-        break;
-      case NODE_TEX_GRADIENT:
-        svm_node_tex_gradient(sd, stack, node);
-        break;
-      case NODE_TEX_VORONOI:
-        offset = svm_node_tex_voronoi<node_feature_mask>(
-            kg, sd, stack, node.y, node.z, node.w, offset);
-        break;
-      case NODE_TEX_MUSGRAVE:
-        offset = svm_node_tex_musgrave(kg, sd, stack, node.y, node.z, node.w, offset);
-        break;
-      case NODE_TEX_WAVE:
-        offset = svm_node_tex_wave(kg, sd, stack, node, offset);
-        break;
-      case NODE_TEX_MAGIC:
-        offset = svm_node_tex_magic(kg, sd, stack, node, offset);
-        break;
-      case NODE_TEX_CHECKER:
-        svm_node_tex_checker(kg, sd, stack, node);
-        break;
-      case NODE_TEX_BRICK:
-        offset = svm_node_tex_brick(kg, sd, stack, node, offset);
-        break;
-      case NODE_TEX_WHITE_NOISE:
-        svm_node_tex_white_noise(kg, sd, stack, node.y, node.z, node.w);
-        break;
-      case NODE_NORMAL:
-        offset = svm_node_normal(kg, sd, stack, node.y, node.z, node.w, offset);
-        break;
-      case NODE_LIGHT_FALLOFF:
-        svm_node_light_falloff(sd, stack, node);
-        break;
-      case NODE_IES:
-        svm_node_ies(kg, sd, stack, node);
-        break;
-      case NODE_RGB_CURVES:
-      case NODE_VECTOR_CURVES:
-        offset = svm_node_curves(kg, sd, stack, node, offset);
-        break;
-      case NODE_FLOAT_CURVE:
-        offset = svm_node_curve(kg, sd, stack, node, offset);
-        break;
-      case NODE_TANGENT:
-        svm_node_tangent(kg, sd, stack, node);
-        break;
-      case NODE_NORMAL_MAP:
-        svm_node_normal_map(kg, sd, stack, node);
-        break;
-      case NODE_INVERT:
-        svm_node_invert(sd, stack, node.y, node.z, node.w);
-        break;
-      case NODE_MIX:
-        offset = svm_node_mix(kg, sd, stack, node.y, node.z, node.w, offset);
-        break;
-      case NODE_SEPARATE_COLOR:
-        svm_node_separate_color(kg, sd, stack, node.y, node.z, node.w);
-        break;
-      case NODE_COMBINE_COLOR:
-        svm_node_combine_color(kg, sd, stack, node.y, node.z, node.w);
-        break;
-      case NODE_SEPARATE_VECTOR:
-        svm_node_separate_vector(sd, stack, node.y, node.z, node.w);
-        break;
-      case NODE_COMBINE_VECTOR:
-        svm_node_combine_vector(sd, stack, node.y, node.z, node.w);
-        break;
-      case NODE_SEPARATE_HSV:
-        offset = svm_node_separate_hsv(kg, sd, stack, node.y, node.z, node.w, offset);
-        break;
-      case NODE_COMBINE_HSV:
-        offset = svm_node_combine_hsv(kg, sd, stack, node.y, node.z, node.w, offset);
-        break;
-      case NODE_VECTOR_ROTATE:
-        svm_node_vector_rotate(sd, stack, node.y, node.z, node.w);
-        break;
-      case NODE_VECTOR_TRANSFORM:
-        svm_node_vector_transform(kg, sd, stack, node);
-        break;
-      case NODE_WIREFRAME:
-        svm_node_wireframe(kg, sd, stack, node);
-        break;
-      case NODE_WAVELENGTH:
-        svm_node_wavelength(kg, sd, stack, node.y, node.z);
-        break;
-      case NODE_BLACKBODY:
-        svm_node_blackbody(kg, sd, stack, node.y, node.z);
-        break;
-      case NODE_MAP_RANGE:
-        offset = svm_node_map_range(kg, sd, stack, node.y, node.z, node.w, offset);
-        break;
-      case NODE_VECTOR_MAP_RANGE:
-        offset = svm_node_vector_map_range(kg, sd, stack, node.y, node.z, node.w, offset);
-        break;
-      case NODE_CLAMP:
-        offset = svm_node_clamp(kg, sd, stack, node.y, node.z, node.w, offset);
-        break;
+      SVM_CASE(NODE_TEXTURE_MAPPING)
+      offset = svm_node_texture_mapping(kg, sd, stack, node.y, node.z, offset);
+      break;
+      SVM_CASE(NODE_MAPPING)
+      svm_node_mapping(kg, sd, stack, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_MIN_MAX)
+      offset = svm_node_min_max(kg, sd, stack, node.y, node.z, offset);
+      break;
+      SVM_CASE(NODE_CAMERA)
+      svm_node_camera(kg, sd, stack, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_TEX_ENVIRONMENT)
+      svm_node_tex_environment(kg, sd, stack, node);
+      break;
+      SVM_CASE(NODE_TEX_SKY)
+      offset = svm_node_tex_sky(kg, sd, stack, node, offset);
+      break;
+      SVM_CASE(NODE_TEX_GRADIENT)
+      svm_node_tex_gradient(sd, stack, node);
+      break;
+      SVM_CASE(NODE_TEX_VORONOI)
+      offset = svm_node_tex_voronoi<node_feature_mask>(
+          kg, sd, stack, node.y, node.z, node.w, offset);
+      break;
+      SVM_CASE(NODE_TEX_MUSGRAVE)
+      offset = svm_node_tex_musgrave(kg, sd, stack, node.y, node.z, node.w, offset);
+      break;
+      SVM_CASE(NODE_TEX_WAVE)
+      offset = svm_node_tex_wave(kg, sd, stack, node, offset);
+      break;
+      SVM_CASE(NODE_TEX_MAGIC)
+      offset = svm_node_tex_magic(kg, sd, stack, node, offset);
+      break;
+      SVM_CASE(NODE_TEX_CHECKER)
+      svm_node_tex_checker(kg, sd, stack, node);
+      break;
+      SVM_CASE(NODE_TEX_BRICK)
+      offset = svm_node_tex_brick(kg, sd, stack, node, offset);
+      break;
+      SVM_CASE(NODE_TEX_WHITE_NOISE)
+      svm_node_tex_white_noise(kg, sd, stack, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_NORMAL)
+      offset = svm_node_normal(kg, sd, stack, node.y, node.z, node.w, offset);
+      break;
+      SVM_CASE(NODE_LIGHT_FALLOFF)
+      svm_node_light_falloff(sd, stack, node);
+      break;
+      SVM_CASE(NODE_IES)
+      svm_node_ies(kg, sd, stack, node);
+      break;
+      SVM_CASE(NODE_CURVES)
+      offset = svm_node_curves(kg, sd, stack, node, offset);
+      break;
+      SVM_CASE(NODE_FLOAT_CURVE)
+      offset = svm_node_curve(kg, sd, stack, node, offset);
+      break;
+      SVM_CASE(NODE_TANGENT)
+      svm_node_tangent(kg, sd, stack, node);
+      break;
+      SVM_CASE(NODE_NORMAL_MAP)
+      svm_node_normal_map(kg, sd, stack, node);
+      break;
+      SVM_CASE(NODE_INVERT)
+      svm_node_invert(sd, stack, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_MIX)
+      offset = svm_node_mix(kg, sd, stack, node.y, node.z, node.w, offset);
+      break;
+      SVM_CASE(NODE_SEPARATE_COLOR)
+      svm_node_separate_color(kg, sd, stack, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_COMBINE_COLOR)
+      svm_node_combine_color(kg, sd, stack, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_SEPARATE_VECTOR)
+      svm_node_separate_vector(sd, stack, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_COMBINE_VECTOR)
+      svm_node_combine_vector(sd, stack, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_SEPARATE_HSV)
+      offset = svm_node_separate_hsv(kg, sd, stack, node.y, node.z, node.w, offset);
+      break;
+      SVM_CASE(NODE_COMBINE_HSV)
+      offset = svm_node_combine_hsv(kg, sd, stack, node.y, node.z, node.w, offset);
+      break;
+      SVM_CASE(NODE_VECTOR_ROTATE)
+      svm_node_vector_rotate(sd, stack, node.y, node.z, node.w);
+      break;
+      SVM_CASE(NODE_VECTOR_TRANSFORM)
+      svm_node_vector_transform(kg, sd, stack, node);
+      break;
+      SVM_CASE(NODE_WIREFRAME)
+      svm_node_wireframe(kg, sd, stack, node);
+      break;
+      SVM_CASE(NODE_WAVELENGTH)
+      svm_node_wavelength(kg, sd, stack, node.y, node.z);
+      break;
+      SVM_CASE(NODE_BLACKBODY)
+      svm_node_blackbody(kg, sd, stack, node.y, node.z);
+      break;
+      SVM_CASE(NODE_MAP_RANGE)
+      offset = svm_node_map_range(kg, sd, stack, node.y, node.z, node.w, offset);
+      break;
+      SVM_CASE(NODE_VECTOR_MAP_RANGE)
+      offset = svm_node_vector_map_range(kg, sd, stack, node.y, node.z, node.w, offset);
+      break;
+      SVM_CASE(NODE_CLAMP)
+      offset = svm_node_clamp(kg, sd, stack, node.y, node.z, node.w, offset);
+      break;
 #ifdef __SHADER_RAYTRACE__
-      case NODE_BEVEL:
-        svm_node_bevel<node_feature_mask>(kg, state, sd, stack, node);
-        break;
-      case NODE_AMBIENT_OCCLUSION:
-        svm_node_ao<node_feature_mask>(kg, state, sd, stack, node);
-        break;
+      SVM_CASE(NODE_BEVEL)
+      svm_node_bevel<node_feature_mask>(kg, state, sd, stack, node);
+      break;
+      SVM_CASE(NODE_AMBIENT_OCCLUSION)
+      svm_node_ao<node_feature_mask>(kg, state, sd, stack, node);
+      break;
 #endif
 
-      case NODE_TEX_VOXEL:
-        IF_KERNEL_NODES_FEATURE(VOLUME)
-        {
-          offset = svm_node_tex_voxel(kg, sd, stack, node, offset);
-        }
-        break;
-      case NODE_AOV_START:
-        if (!svm_node_aov_check(path_flag, render_buffer)) {
-          return;
-        }
-        break;
-      case NODE_AOV_COLOR:
-        svm_node_aov_color<node_feature_mask>(kg, state, sd, stack, node, render_buffer);
-        break;
-      case NODE_AOV_VALUE:
-        svm_node_aov_value<node_feature_mask>(kg, state, sd, stack, node, render_buffer);
-        break;
+      SVM_CASE(NODE_TEX_VOXEL)
+      IF_KERNEL_NODES_FEATURE(VOLUME)
+      {
+        offset = svm_node_tex_voxel(kg, sd, stack, node, offset);
+      }
+      break;
+      SVM_CASE(NODE_AOV_START)
+      if (!svm_node_aov_check(path_flag, render_buffer)) {
+        return;
+      }
+      break;
+      SVM_CASE(NODE_AOV_COLOR)
+      svm_node_aov_color<node_feature_mask>(kg, state, sd, stack, node, render_buffer);
+      break;
+      SVM_CASE(NODE_AOV_VALUE)
+      svm_node_aov_value<node_feature_mask>(kg, state, sd, stack, node, render_buffer);
+      break;
       default:
         kernel_assert(!"Unknown node type was passed to the SVM machine");
         return;
diff --git a/intern/cycles/kernel/svm/tex_coord.h b/intern/cycles/kernel/svm/tex_coord.h
index d9138796c45..2a0130e11d4 100644
--- a/intern/cycles/kernel/svm/tex_coord.h
+++ b/intern/cycles/kernel/svm/tex_coord.h
@@ -138,7 +138,7 @@ ccl_device_noinline int svm_node_tex_coord_bump_dx(KernelGlobals kg,
     case NODE_TEXCO_WINDOW: {
       if ((path_flag & PATH_RAY_CAMERA) && sd->object == OBJECT_NONE &&
           kernel_data.cam.type == CAMERA_ORTHOGRAPHIC)
-        data = camera_world_to_ndc(kg, sd, sd->ray_P + make_float3(sd->ray_dP, 0.0f, 0.0f));
+        data = camera_world_to_ndc(kg, sd, sd->ray_P);
       else
         data = camera_world_to_ndc(kg, sd, sd->P + sd->dP.dx);
       data.z = 0.0f;
@@ -223,7 +223,7 @@ ccl_device_noinline int svm_node_tex_coord_bump_dy(KernelGlobals kg,
     case NODE_TEXCO_WINDOW: {
       if ((path_flag & PATH_RAY_CAMERA) && sd->object == OBJECT_NONE &&
           kernel_data.cam.type == CAMERA_ORTHOGRAPHIC)
-        data = camera_world_to_ndc(kg, sd, sd->ray_P + make_float3(0.0f, sd->ray_dP, 0.0f));
+        data = camera_world_to_ndc(kg, sd, sd->ray_P);
       else
         data = camera_world_to_ndc(kg, sd, sd->P + sd->dP.dy);
       data.z = 0.0f;
diff --git a/intern/cycles/kernel/svm/types.h b/intern/cycles/kernel/svm/types.h
index 82109ec4c4f..12d0ec141e6 100644
--- a/intern/cycles/kernel/svm/types.h
+++ b/intern/cycles/kernel/svm/types.h
@@ -17,104 +17,9 @@ CCL_NAMESPACE_BEGIN
 /* Nodes */
 
 typedef enum ShaderNodeType {
-  NODE_END = 0,
-  NODE_SHADER_JUMP,
-  NODE_CLOSURE_BSDF,
-  NODE_CLOSURE_EMISSION,
-  NODE_CLOSURE_BACKGROUND,
-  NODE_CLOSURE_SET_WEIGHT,
-  NODE_CLOSURE_WEIGHT,
-  NODE_EMISSION_WEIGHT,
-  NODE_MIX_CLOSURE,
-  NODE_JUMP_IF_ZERO,
-  NODE_JUMP_IF_ONE,
-  NODE_GEOMETRY,
-  NODE_CONVERT,
-  NODE_TEX_COORD,
-  NODE_VALUE_F,
-  NODE_VALUE_V,
-  NODE_ATTR,
-  NODE_VERTEX_COLOR,
-  NODE_GEOMETRY_BUMP_DX,
-  NODE_GEOMETRY_BUMP_DY,
-  NODE_SET_DISPLACEMENT,
-  NODE_DISPLACEMENT,
-  NODE_VECTOR_DISPLACEMENT,
-  NODE_TEX_IMAGE,
-  NODE_TEX_IMAGE_BOX,
-  NODE_TEX_NOISE,
-  NODE_SET_BUMP,
-  NODE_ATTR_BUMP_DX,
-  NODE_ATTR_BUMP_DY,
-  NODE_VERTEX_COLOR_BUMP_DX,
-  NODE_VERTEX_COLOR_BUMP_DY,
-  NODE_TEX_COORD_BUMP_DX,
-  NODE_TEX_COORD_BUMP_DY,
-  NODE_CLOSURE_SET_NORMAL,
-  NODE_ENTER_BUMP_EVAL,
-  NODE_LEAVE_BUMP_EVAL,
-  NODE_HSV,
-  NODE_CLOSURE_HOLDOUT,
-  NODE_FRESNEL,
-  NODE_LAYER_WEIGHT,
-  NODE_CLOSURE_VOLUME,
-  NODE_PRINCIPLED_VOLUME,
-  NODE_MATH,
-  NODE_VECTOR_MATH,
-  NODE_RGB_RAMP,
-  NODE_GAMMA,
-  NODE_BRIGHTCONTRAST,
-  NODE_LIGHT_PATH,
-  NODE_OBJECT_INFO,
-  NODE_PARTICLE_INFO,
-  NODE_HAIR_INFO,
-  NODE_POINT_INFO,
-  NODE_TEXTURE_MAPPING,
-  NODE_MAPPING,
-  NODE_MIN_MAX,
-  NODE_CAMERA,
-  NODE_TEX_ENVIRONMENT,
-  NODE_TEX_SKY,
-  NODE_TEX_GRADIENT,
-  NODE_TEX_VORONOI,
-  NODE_TEX_MUSGRAVE,
-  NODE_TEX_WAVE,
-  NODE_TEX_MAGIC,
-  NODE_TEX_CHECKER,
-  NODE_TEX_BRICK,
-  NODE_TEX_WHITE_NOISE,
-  NODE_NORMAL,
-  NODE_LIGHT_FALLOFF,
-  NODE_IES,
-  NODE_RGB_CURVES,
-  NODE_VECTOR_CURVES,
-  NODE_TANGENT,
-  NODE_NORMAL_MAP,
-  NODE_INVERT,
-  NODE_MIX,
-  NODE_SEPARATE_COLOR,
-  NODE_COMBINE_COLOR,
-  NODE_SEPARATE_VECTOR,
-  NODE_COMBINE_VECTOR,
-  NODE_SEPARATE_HSV,
-  NODE_COMBINE_HSV,
-  NODE_VECTOR_ROTATE,
-  NODE_VECTOR_TRANSFORM,
-  NODE_WIREFRAME,
-  NODE_WAVELENGTH,
-  NODE_BLACKBODY,
-  NODE_MAP_RANGE,
-  NODE_VECTOR_MAP_RANGE,
-  NODE_CLAMP,
-  NODE_BEVEL,
-  NODE_AMBIENT_OCCLUSION,
-  NODE_TEX_VOXEL,
-  NODE_AOV_START,
-  NODE_AOV_COLOR,
-  NODE_AOV_VALUE,
-  NODE_FLOAT_CURVE,
-  /* NOTE: for best OpenCL performance, item definition in the enum must
-   * match the switch case order in `svm.h`. */
+#define SHADER_NODE_TYPE(name) name,
+#include "node_types_template.h"
+  NODE_NUM
 } ShaderNodeType;
 
 typedef enum NodeAttributeOutputType {
diff --git a/intern/cycles/kernel/types.h b/intern/cycles/kernel/types.h
index f2e61d25002..05320deed19 100644
--- a/intern/cycles/kernel/types.h
+++ b/intern/cycles/kernel/types.h
@@ -535,7 +535,8 @@ typedef struct RaySelfPrimitives {
 typedef struct Ray {
   float3 P;   /* origin */
   float3 D;   /* direction */
-  float t;    /* length of the ray */
+  float tmin; /* start distance */
+  float tmax; /* end distance */
   float time; /* time (for motion blur) */
 
   RaySelfPrimitives self;
@@ -1072,94 +1073,6 @@ typedef struct KernelCamera {
 } KernelCamera;
 static_assert_align(KernelCamera, 16);
 
-typedef struct KernelFilm {
-  float exposure;
-  int pass_flag;
-
-  int light_pass_flag;
-  int pass_stride;
-
-  int pass_combined;
-  int pass_depth;
-  int pass_position;
-  int pass_normal;
-  int pass_roughness;
-  int pass_motion;
-
-  int pass_motion_weight;
-  int pass_uv;
-  int pass_object_id;
-  int pass_material_id;
-
-  int pass_diffuse_color;
-  int pass_glossy_color;
-  int pass_transmission_color;
-
-  int pass_diffuse_indirect;
-  int pass_glossy_indirect;
-  int pass_transmission_indirect;
-  int pass_volume_indirect;
-
-  int pass_diffuse_direct;
-  int pass_glossy_direct;
-  int pass_transmission_direct;
-  int pass_volume_direct;
-
-  int pass_emission;
-  int pass_background;
-  int pass_ao;
-  float pass_alpha_threshold;
-
-  int pass_shadow;
-  float pass_shadow_scale;
-
-  int pass_shadow_catcher;
-  int pass_shadow_catcher_sample_count;
-  int pass_shadow_catcher_matte;
-
-  int filter_table_offset;
-
-  int cryptomatte_passes;
-  int cryptomatte_depth;
-  int pass_cryptomatte;
-
-  int pass_adaptive_aux_buffer;
-  int pass_sample_count;
-
-  int pass_mist;
-  float mist_start;
-  float mist_inv_depth;
-  float mist_falloff;
-
-  int pass_denoising_normal;
-  int pass_denoising_albedo;
-  int pass_denoising_depth;
-
-  int pass_aov_color;
-  int pass_aov_value;
-  int pass_lightgroup;
-
-  /* XYZ to rendering color space transform. float4 instead of float3 to
-   * ensure consistent padding/alignment across devices. */
-  float4 xyz_to_r;
-  float4 xyz_to_g;
-  float4 xyz_to_b;
-  float4 rgb_to_y;
-  /* Rec709 to rendering color space. */
-  float4 rec709_to_r;
-  float4 rec709_to_g;
-  float4 rec709_to_b;
-  int is_rec709;
-
-  int pass_bake_primitive;
-  int pass_bake_differential;
-
-  int use_approximate_shadow_catcher;
-
-  int pad1;
-} KernelFilm;
-static_assert_align(KernelFilm, 16);
-
 typedef struct KernelFilmConvert {
   int pass_offset;
   int pass_stride;
@@ -1201,108 +1114,6 @@ typedef struct KernelFilmConvert {
 } KernelFilmConvert;
 static_assert_align(KernelFilmConvert, 16);
 
-typedef struct KernelBackground {
-  /* only shader index */
-  int surface_shader;
-  int volume_shader;
-  float volume_step_size;
-  int transparent;
-  float transparent_roughness_squared_threshold;
-
-  /* portal sampling */
-  float portal_weight;
-  int num_portals;
-  int portal_offset;
-
-  /* sun sampling */
-  float sun_weight;
-  /* xyz store direction, w the angle. float4 instead of float3 is used
-   * to ensure consistent padding/alignment across devices. */
-  float4 sun;
-
-  /* map sampling */
-  float map_weight;
-  int map_res_x;
-  int map_res_y;
-
-  int use_mis;
-
-  int lightgroup;
-
-  /* Padding */
-  int pad1, pad2;
-} KernelBackground;
-static_assert_align(KernelBackground, 16);
-
-typedef struct KernelIntegrator {
-  /* emission */
-  int use_direct_light;
-  int num_distribution;
-  int num_all_lights;
-  float pdf_triangles;
-  float pdf_lights;
-  float light_inv_rr_threshold;
-
-  /* bounces */
-  int min_bounce;
-  int max_bounce;
-
-  int max_diffuse_bounce;
-  int max_glossy_bounce;
-  int max_transmission_bounce;
-  int max_volume_bounce;
-
-  /* AO bounces */
-  int ao_bounces;
-  float ao_bounces_distance;
-  float ao_bounces_factor;
-  float ao_additive_factor;
-
-  /* transparent */
-  int transparent_min_bounce;
-  int transparent_max_bounce;
-  int transparent_shadows;
-
-  /* caustics */
-  int caustics_reflective;
-  int caustics_refractive;
-  float filter_glossy;
-
-  /* seed */
-  int seed;
-
-  /* clamp */
-  float sample_clamp_direct;
-  float sample_clamp_indirect;
-
-  /* mis */
-  int use_lamp_mis;
-
-  /* caustics */
-  int use_caustics;
-
-  /* sampler */
-  int sampling_pattern;
-
-  /* volume render */
-  int use_volumes;
-  int volume_max_steps;
-  float volume_step_rate;
-
-  int has_shadow_catcher;
-  float scrambling_distance;
-
-  /* Closure filter. */
-  int filter_closures;
-
-  /* MIS debugging. */
-  int direct_light_sampling_type;
-
-  /* padding */
-  int pad1;
-} KernelIntegrator;
-static_assert_align(KernelIntegrator, 16);
-
 typedef enum KernelBVHLayout {
   BVH_LAYOUT_NONE = 0,
 
@@ -1320,36 +1131,25 @@ typedef enum KernelBVHLayout {
   BVH_LAYOUT_ALL = BVH_LAYOUT_BVH2 | BVH_LAYOUT_EMBREE | BVH_LAYOUT_OPTIX | BVH_LAYOUT_METAL,
 } KernelBVHLayout;
 
-typedef struct KernelBVH {
-  /* Own BVH */
-  int root;
-  int have_motion;
-  int have_curves;
-  int bvh_layout;
-  int use_bvh_steps;
-  int curve_subdivisions;
+/* Specialized struct that can become constants in dynamic compilation. */
+#define KERNEL_STRUCT_BEGIN(name, parent) struct name {
+#define KERNEL_STRUCT_END(name) \
+  } \
+  ; \
+  static_assert_align(name, 16);
 
-  /* Custom BVH */
-#ifdef __KERNEL_OPTIX__
-  OptixTraversableHandle scene;
-#elif defined __METALRT__
-  metalrt_as_type scene;
+#ifdef __KERNEL_USE_DATA_CONSTANTS__
+#  define KERNEL_STRUCT_MEMBER(parent, type, name) type __unused_##name;
 #else
-#  ifdef __EMBREE__
-  RTCScene scene;
-#    ifndef __KERNEL_64_BIT__
-  int pad2;
-#    endif
-#  else
-  int scene, pad2;
-#  endif
+#  define KERNEL_STRUCT_MEMBER(parent, type, name) type name;
 #endif
-} KernelBVH;
-static_assert_align(KernelBVH, 16);
+
+#include "kernel/data_template.h"
 
 typedef struct KernelTables {
   int beckmann_offset;
-  int pad1, pad2, pad3;
+  int filter_table_offset;
+  int pad1, pad2;
 } KernelTables;
 static_assert_align(KernelTables, 16);
 
@@ -1362,18 +1162,37 @@ typedef struct KernelBake {
 static_assert_align(KernelBake, 16);
 
 typedef struct KernelData {
+  /* Features and limits. */
   uint kernel_features;
   uint max_closures;
   uint max_shaders;
   uint volume_stack_size;
 
+  /* Always dynamic data mambers. */
   KernelCamera cam;
-  KernelFilm film;
-  KernelBackground background;
-  KernelIntegrator integrator;
-  KernelBVH bvh;
-  KernelTables tables;
   KernelBake bake;
+  KernelTables tables;
+
+  /* Potentially specialized data members. */
+#define KERNEL_STRUCT_BEGIN(name, parent) name parent;
+#include "kernel/data_template.h"
+
+  /* Device specific BVH. */
+#ifdef __KERNEL_OPTIX__
+  OptixTraversableHandle device_bvh;
+#elif defined __METALRT__
+  metalrt_as_type device_bvh;
+#else
+#  ifdef __EMBREE__
+  RTCScene device_bvh;
+#    ifndef __KERNEL_64_BIT__
+  int pad1;
+#    endif
+#  else
+  int device_bvh, pad1;
+#  endif
+#endif
+  int pad2, pad3;
 } KernelData;
 static_assert_align(KernelData, 16);
 
diff --git a/intern/cycles/scene/film.cpp b/intern/cycles/scene/film.cpp
index 8239ee84b82..a6a8f90a449 100644
--- a/intern/cycles/scene/film.cpp
+++ b/intern/cycles/scene/film.cpp
@@ -394,7 +394,7 @@ void Film::device_update(Device *device, DeviceScene *dscene, Scene *scene)
   vector<float> table = filter_table(filter_type, filter_width);
   scene->lookup_tables->remove_table(&filter_table_offset_);
   filter_table_offset_ = scene->lookup_tables->add_table(dscene, table);
-  kfilm->filter_table_offset = (int)filter_table_offset_;
+  dscene->data.tables.filter_table_offset = (int)filter_table_offset_;
 
   /* mist pass parameters */
   kfilm->mist_start = mist_start;
diff --git a/intern/cycles/scene/geometry.cpp b/intern/cycles/scene/geometry.cpp
index bdc8839e277..67ff118692e 100644
--- a/intern/cycles/scene/geometry.cpp
+++ b/intern/cycles/scene/geometry.cpp
@@ -1362,7 +1362,7 @@ void GeometryManager::device_update_bvh(Device *device,
   dscene->data.bvh.use_bvh_steps = (scene->params.num_bvh_time_steps != 0);
   dscene->data.bvh.curve_subdivisions = scene->params.curve_subdivisions();
   /* The scene handle is set in 'CPUDevice::const_copy_to' and 'OptiXDevice::const_copy_to' */
-  dscene->data.bvh.scene = 0;
+  dscene->data.device_bvh = 0;
 }
 
 /* Set of flags used to help determining what data has been modified or needs reallocation, so we
diff --git a/intern/cycles/scene/scene.cpp b/intern/cycles/scene/scene.cpp
index eedb2a4fa3a..18cd665ac74 100644
--- a/intern/cycles/scene/scene.cpp
+++ b/intern/cycles/scene/scene.cpp
@@ -369,6 +369,8 @@ void Scene::device_update(Device *device_, Progress &progress)
     device->const_copy_to("data", &dscene.data, sizeof(dscene.data));
   }
 
+  device->optimize_for_scene(this);
+
   if (print_stats) {
     size_t mem_used = util_guarded_get_mem_used();
     size_t mem_peak = util_guarded_get_mem_peak();
diff --git a/intern/cycles/scene/scene.h b/intern/cycles/scene/scene.h
index d04c6a27f11..d1004bb7b66 100644
--- a/intern/cycles/scene/scene.h
+++ b/intern/cycles/scene/scene.h
@@ -82,7 +82,7 @@ class DeviceScene {
 
   device_vector<uint> patches;
 
-  /* pointcloud */
+  /* point-cloud */
   device_vector<float4> points;
   device_vector<uint> points_shader;
 
@@ -124,7 +124,7 @@ class DeviceScene {
   /* integrator */
   device_vector<float> sample_pattern_lut;
 
-  /* ies lights */
+  /* IES lights */
   device_vector<float> ies_lights;
 
   KernelData data;
diff --git a/intern/cycles/scene/shader_nodes.cpp b/intern/cycles/scene/shader_nodes.cpp
index f93a1a5231a..bedb0fe2902 100644
--- a/intern/cycles/scene/shader_nodes.cpp
+++ b/intern/cycles/scene/shader_nodes.cpp
@@ -6671,7 +6671,7 @@ void CurvesNode::compile(SVMCompiler &compiler,
 
   ShaderInput *fac_in = input("Fac");
 
-  compiler.add_node(type,
+  compiler.add_node(ShaderNodeType(type),
                     compiler.encode_uchar4(compiler.stack_assign(fac_in),
                                            compiler.stack_assign(value_in),
                                            compiler.stack_assign(value_out),
@@ -6736,7 +6736,7 @@ void RGBCurvesNode::constant_fold(const ConstantFolder &folder)
 
 void RGBCurvesNode::compile(SVMCompiler &compiler)
 {
-  CurvesNode::compile(compiler, NODE_RGB_CURVES, input("Color"), output("Color"));
+  CurvesNode::compile(compiler, NODE_CURVES, input("Color"), output("Color"));
 }
 
 void RGBCurvesNode::compile(OSLCompiler &compiler)
@@ -6774,7 +6774,7 @@ void VectorCurvesNode::constant_fold(const ConstantFolder &folder)
 
 void VectorCurvesNode::compile(SVMCompiler &compiler)
 {
-  CurvesNode::compile(compiler, NODE_VECTOR_CURVES, input("Vector"), output("Vector"));
+  CurvesNode::compile(compiler, NODE_CURVES, input("Vector"), output("Vector"));
 }
 
 void VectorCurvesNode::compile(OSLCompiler &compiler)
diff --git a/intern/cycles/scene/svm.cpp b/intern/cycles/scene/svm.cpp
index 4bc5a1b9cc2..ede3f87e7e3 100644
--- a/intern/cycles/scene/svm.cpp
+++ b/intern/cycles/scene/svm.cpp
@@ -44,8 +44,6 @@ void SVMShaderManager::device_update_shader(Scene *scene,
   }
   assert(shader->graph);
 
-  svm_nodes->push_back_slow(make_int4(NODE_SHADER_JUMP, 0, 0, 0));
-
   SVMCompiler::Summary summary;
   SVMCompiler compiler(scene);
   compiler.background = (shader == scene->background->get_shader(scene));
@@ -170,6 +168,9 @@ SVMCompiler::SVMCompiler(Scene *scene) : scene(scene)
   background = false;
   mix_weight_offset = SVM_STACK_INVALID;
   compile_failed = false;
+
+  /* This struct has one entry for every node, in order of ShaderNodeType definition. */
+  svm_node_types_used = (std::atomic_int *)&scene->dscene.data.svm_usage;
 }
 
 int SVMCompiler::stack_size(SocketType::Type type)
@@ -378,11 +379,13 @@ void SVMCompiler::add_node(int a, int b, int c, int d)
 
 void SVMCompiler::add_node(ShaderNodeType type, int a, int b, int c)
 {
+  svm_node_types_used[type] = true;
   current_svm_nodes.push_back_slow(make_int4(type, a, b, c));
 }
 
 void SVMCompiler::add_node(ShaderNodeType type, const float3 &f)
 {
+  svm_node_types_used[type] = true;
   current_svm_nodes.push_back_slow(
       make_int4(type, __float_as_int(f.x), __float_as_int(f.y), __float_as_int(f.z)));
 }
@@ -663,6 +666,7 @@ void SVMCompiler::generate_multi_closure(ShaderNode *root_node,
         /* Add instruction to skip closure and its dependencies if mix
          * weight is zero.
          */
+        svm_node_types_used[NODE_JUMP_IF_ONE] = true;
         current_svm_nodes.push_back_slow(make_int4(NODE_JUMP_IF_ONE, 0, stack_assign(facin), 0));
         int node_jump_skip_index = current_svm_nodes.size() - 1;
 
@@ -678,6 +682,7 @@ void SVMCompiler::generate_multi_closure(ShaderNode *root_node,
         /* Add instruction to skip closure and its dependencies if mix
          * weight is zero.
          */
+        svm_node_types_used[NODE_JUMP_IF_ZERO] = true;
         current_svm_nodes.push_back_slow(make_int4(NODE_JUMP_IF_ZERO, 0, stack_assign(facin), 0));
         int node_jump_skip_index = current_svm_nodes.size() - 1;
 
@@ -844,6 +849,9 @@ void SVMCompiler::compile_type(Shader *shader, ShaderGraph *graph, ShaderType ty
 
 void SVMCompiler::compile(Shader *shader, array<int4> &svm_nodes, int index, Summary *summary)
 {
+  svm_node_types_used[NODE_SHADER_JUMP] = true;
+  svm_nodes.push_back_slow(make_int4(NODE_SHADER_JUMP, 0, 0, 0));
+
   /* copy graph for shader with bump mapping */
   ShaderNode *output = shader->graph->output();
   int start_num_svm_nodes = svm_nodes.size();
diff --git a/intern/cycles/scene/svm.h b/intern/cycles/scene/svm.h
index 19746616207..f72375e7f87 100644
--- a/intern/cycles/scene/svm.h
+++ b/intern/cycles/scene/svm.h
@@ -211,6 +211,7 @@ class SVMCompiler {
   /* compile */
   void compile_type(Shader *shader, ShaderGraph *graph, ShaderType type);
 
+  std::atomic_int *svm_node_types_used;
   array<int4> current_svm_nodes;
   ShaderType current_type;
   Shader *current_shader;
diff --git a/intern/cycles/util/math_intersect.h b/intern/cycles/util/math_intersect.h
index b0de0b25a45..c5b1cd51030 100644
--- a/intern/cycles/util/math_intersect.h
+++ b/intern/cycles/util/math_intersect.h
@@ -10,7 +10,8 @@ CCL_NAMESPACE_BEGIN
 
 ccl_device bool ray_sphere_intersect(float3 ray_P,
                                      float3 ray_D,
-                                     float ray_t,
+                                     float ray_tmin,
+                                     float ray_tmax,
                                      float3 sphere_P,
                                      float sphere_radius,
                                      ccl_private float3 *isect_P,
@@ -33,7 +34,7 @@ ccl_device bool ray_sphere_intersect(float3 ray_P,
       return false;
     }
     const float t = tp - sqrtf(radiussq - dsq); /* pythagoras */
-    if (t < ray_t) {
+    if (t > ray_tmin && t < ray_tmax) {
       *isect_t = t;
       *isect_P = ray_P + ray_D * t;
       return true;
@@ -44,7 +45,8 @@ ccl_device bool ray_sphere_intersect(float3 ray_P,
 
 ccl_device bool ray_aligned_disk_intersect(float3 ray_P,
                                            float3 ray_D,
-                                           float ray_t,
+                                           float ray_tmin,
+                                           float ray_tmax,
                                            float3 disk_P,
                                            float disk_radius,
                                            ccl_private float3 *isect_P,
@@ -59,7 +61,7 @@ ccl_device bool ray_aligned_disk_intersect(float3 ray_P,
   }
   /* Compute t to intersection point. */
   const float t = -disk_t / div;
-  if (t < 0.0f || t > ray_t) {
+  if (!(t > ray_tmin && t < ray_tmax)) {
     return false;
   }
   /* Test if within radius. */
@@ -74,7 +76,8 @@ ccl_device bool ray_aligned_disk_intersect(float3 ray_P,
 
 ccl_device bool ray_disk_intersect(float3 ray_P,
                                    float3 ray_D,
-                                   float ray_t,
+                                   float ray_tmin,
+                                   float ray_tmax,
                                    float3 disk_P,
                                    float3 disk_N,
                                    float disk_radius,
@@ -92,7 +95,8 @@ ccl_device bool ray_disk_intersect(float3 ray_P,
     }
     float3 P = ray_P + t * ray_D;
     float3 T = P - disk_P;
-    if (dot(T, T) < sqr(disk_radius) /*&& t > 0.f*/ && t <= ray_t) {
+
+    if (dot(T, T) < sqr(disk_radius) && (t > ray_tmin && t < ray_tmax)) {
       *isect_P = ray_P + t * ray_D;
       *isect_t = t;
       return true;
@@ -103,7 +107,8 @@ ccl_device bool ray_disk_intersect(float3 ray_P,
 
 ccl_device_forceinline bool ray_triangle_intersect(float3 ray_P,
                                                    float3 ray_dir,
-                                                   float ray_t,
+                                                   float ray_tmin,
+                                                   float ray_tmax,
                                                    const float3 tri_a,
                                                    const float3 tri_b,
                                                    const float3 tri_c,
@@ -149,16 +154,14 @@ ccl_device_forceinline bool ray_triangle_intersect(float3 ray_P,
 
   /* Perform depth test. */
   const float T = dot3(v0, Ng);
-  const int sign_den = (__float_as_int(den) & 0x80000000);
-  const float sign_T = xor_signmask(T, sign_den);
-  if ((sign_T < 0.0f) || (sign_T > ray_t * xor_signmask(den, sign_den))) {
+  const float t = T / den;
+  if (!(t >= ray_tmin && t <= ray_tmax)) {
     return false;
   }
 
-  const float inv_den = 1.0f / den;
-  *isect_u = U * inv_den;
-  *isect_v = V * inv_den;
-  *isect_t = T * inv_den;
+  *isect_u = U / den;
+  *isect_v = V / den;
+  *isect_t = t;
   return true;
 
 #undef dot3
@@ -171,8 +174,8 @@ ccl_device_forceinline bool ray_triangle_intersect(float3 ray_P,
  */
 ccl_device bool ray_quad_intersect(float3 ray_P,
                                    float3 ray_D,
-                                   float ray_mint,
-                                   float ray_maxt,
+                                   float ray_tmin,
+                                   float ray_tmax,
                                    float3 quad_P,
                                    float3 quad_u,
                                    float3 quad_v,
@@ -185,7 +188,7 @@ ccl_device bool ray_quad_intersect(float3 ray_P,
 {
   /* Perform intersection test. */
   float t = -(dot(ray_P, quad_n) - dot(quad_P, quad_n)) / dot(ray_D, quad_n);
-  if (t < ray_mint || t > ray_maxt) {
+  if (!(t > ray_tmin && t < ray_tmax)) {
     return false;
   }
   const float3 hit = ray_P + t * ray_D;
diff --git a/intern/cycles/util/string.cpp b/intern/cycles/util/string.cpp
index 66ff866ee10..0c318cea44a 100644
--- a/intern/cycles/util/string.cpp
+++ b/intern/cycles/util/string.cpp
@@ -136,6 +136,19 @@ void string_replace(string &haystack, const string &needle, const string &other)
   }
 }
 
+void string_replace_same_length(string &haystack, const string &needle, const string &other)
+{
+  assert(needle.size() == other.size());
+  size_t pos = 0;
+  while (pos != string::npos) {
+    pos = haystack.find(needle, pos);
+    if (pos != string::npos) {
+      memcpy(haystack.data() + pos, other.data(), other.size());
+      pos += other.size();
+    }
+  }
+}
+
 string string_remove_trademark(const string &s)
 {
   string result = s;
@@ -164,6 +177,11 @@ string to_string(const char *str)
   return string(str);
 }
 
+string to_string(const float4 &v)
+{
+  return string_printf("%f,%f,%f,%f", v.x, v.y, v.z, v.w);
+}
+
 string string_to_lower(const string &s)
 {
   string r = s;
diff --git a/intern/cycles/util/string.h b/intern/cycles/util/string.h
index a74feee1750..ecbe9e106c6 100644
--- a/intern/cycles/util/string.h
+++ b/intern/cycles/util/string.h
@@ -38,12 +38,14 @@ void string_split(vector<string> &tokens,
                   const string &separators = "\t ",
                   bool skip_empty_tokens = true);
 void string_replace(string &haystack, const string &needle, const string &other);
+void string_replace_same_length(string &haystack, const string &needle, const string &other);
 bool string_startswith(string_view s, string_view start);
 bool string_endswith(string_view s, string_view end);
 string string_strip(const string &s);
 string string_remove_trademark(const string &s);
 string string_from_bool(const bool var);
 string to_string(const char *str);
+string to_string(const float4 &v);
 string string_to_lower(const string &s);
 
 /* Wide char strings are only used on Windows to deal with non-ASCII
diff --git a/intern/ghost/GHOST_Types.h b/intern/ghost/GHOST_Types.h
index 2fc84349eb9..495fb739978 100644
--- a/intern/ghost/GHOST_Types.h
+++ b/intern/ghost/GHOST_Types.h
@@ -547,21 +547,15 @@ typedef struct {
   /** The key code. */
   GHOST_TKey key;
 
-  /* ascii / utf8: both should always be set when possible,
-   * - ascii may be '\0' however if the user presses a non ascii key
-   * - unicode may not be set if the system has no unicode support
-   *
-   * These values are intended to be used as follows.
-   * For text input use unicode when available, fallback to ascii.
-   * For areas where unicode is not needed, number input for example, always
-   * use ascii, unicode is ignored - campbell.
-   */
-  /** The ascii code for the key event ('\0' if none). */
-  char ascii;
   /** The unicode character. if the length is 6, not NULL terminated if all 6 are set. */
   char utf8_buf[6];
 
-  /** Generated by auto-repeat. */
+  /**
+   * Enabled when the key is held (auto-repeat).
+   * In this case press events are sent without a corresponding release/up event.
+   *
+   * All back-ends must set this variable for correct behavior regarding repeatable keys.
+   */
   char is_repeat;
 } GHOST_TEventKeyData;
 
diff --git a/intern/ghost/intern/GHOST_EventKey.h b/intern/ghost/intern/GHOST_EventKey.h
index 1c3156c27d2..f85a674be9f 100644
--- a/intern/ghost/intern/GHOST_EventKey.h
+++ b/intern/ghost/intern/GHOST_EventKey.h
@@ -22,13 +22,13 @@ class GHOST_EventKey : public GHOST_Event {
    * \param msec: The time this event was generated.
    * \param type: The type of key event.
    * \param key: The key code of the key.
+   * \param is_repeat: Enabled for key repeat events (only for press events).
    */
   GHOST_EventKey(
       uint64_t msec, GHOST_TEventType type, GHOST_IWindow *window, GHOST_TKey key, bool is_repeat)
       : GHOST_Event(msec, type, window)
   {
     m_keyEventData.key = key;
-    m_keyEventData.ascii = '\0';
     m_keyEventData.utf8_buf[0] = '\0';
     m_keyEventData.is_repeat = is_repeat;
     m_data = &m_keyEventData;
@@ -39,23 +39,24 @@ class GHOST_EventKey : public GHOST_Event {
    * \param msec: The time this event was generated.
    * \param type: The type of key event.
    * \param key: The key code of the key.
-   * \param ascii: The ascii code for the key event.
+   * \param is_repeat: Enabled for key repeat events (only for press events).
+   * \param utf8_buf: The text associated with this key event (only for press events).
    */
   GHOST_EventKey(uint64_t msec,
                  GHOST_TEventType type,
                  GHOST_IWindow *window,
                  GHOST_TKey key,
-                 char ascii,
-                 const char utf8_buf[6],
-                 bool is_repeat)
+                 bool is_repeat,
+                 const char utf8_buf[6])
       : GHOST_Event(msec, type, window)
   {
     m_keyEventData.key = key;
-    m_keyEventData.ascii = ascii;
-    if (utf8_buf)
+    if (utf8_buf) {
       memcpy(m_keyEventData.utf8_buf, utf8_buf, sizeof(m_keyEventData.utf8_buf));
-    else
+    }
+    else {
       m_keyEventData.utf8_buf[0] = '\0';
+    }
     m_keyEventData.is_repeat = is_repeat;
     m_data = &m_keyEventData;
   }
diff --git a/intern/ghost/intern/GHOST_SystemCocoa.mm b/intern/ghost/intern/GHOST_SystemCocoa.mm
index 0a905f5093e..c247ef3daa0 100644
--- a/intern/ghost/intern/GHOST_SystemCocoa.mm
+++ b/intern/ghost/intern/GHOST_SystemCocoa.mm
@@ -1779,7 +1779,6 @@ GHOST_TSuccess GHOST_SystemCocoa::handleKeyEvent(void *eventPtr)
   NSString *characters;
   NSData *convertedCharacters;
   GHOST_TKey keyCode;
-  unsigned char ascii;
   NSString *charsIgnoringModifiers;
 
   window = m_windowManager->getWindowAssociatedWithOSWindow((void *)[event window]);
@@ -1789,7 +1788,6 @@ GHOST_TSuccess GHOST_SystemCocoa::handleKeyEvent(void *eventPtr)
   }
 
   char utf8_buf[6] = {'\0'};
-  ascii = 0;
 
   switch ([event type]) {
 
@@ -1809,7 +1807,6 @@ GHOST_TSuccess GHOST_SystemCocoa::handleKeyEvent(void *eventPtr)
                                                                   kUCKeyActionUp);
       }
 
-      /* handling both unicode or ascii */
       characters = [event characters];
       if ([characters length] > 0) {
         convertedCharacters = [characters dataUsingEncoding:NSUTF8StringEncoding];
@@ -1835,41 +1832,31 @@ GHOST_TSuccess GHOST_SystemCocoa::handleKeyEvent(void *eventPtr)
       if ((keyCode == GHOST_kKeyQ) && (m_modifierMask & NSEventModifierFlagCommand))
         break;  // Cmd-Q is directly handled by Cocoa
 
-      /* ascii is a subset of unicode */
-      if (utf8_buf[0] && !utf8_buf[1]) {
-        ascii = utf8_buf[0];
-      }
-
       if ([event type] == NSEventTypeKeyDown) {
         pushEvent(new GHOST_EventKey([event timestamp] * 1000,
                                      GHOST_kEventKeyDown,
                                      window,
                                      keyCode,
-                                     ascii,
-                                     utf8_buf,
-                                     [event isARepeat]));
+                                     [event isARepeat],
+                                     utf8_buf));
 #if 0
-        printf("Key down rawCode=0x%x charsIgnoringModifiers=%c keyCode=%u ascii=%i %c utf8=%s\n",
+        printf("Key down rawCode=0x%x charsIgnoringModifiers=%c keyCode=%u utf8=%s\n",
                [event keyCode],
                [charsIgnoringModifiers length] > 0 ? [charsIgnoringModifiers characterAtIndex:0] :
                                                      ' ',
                keyCode,
-               ascii,
-               ascii,
                utf8_buf);
 #endif
       }
       else {
         pushEvent(new GHOST_EventKey(
-            [event timestamp] * 1000, GHOST_kEventKeyUp, window, keyCode, 0, NULL, false));
+            [event timestamp] * 1000, GHOST_kEventKeyUp, window, keyCode, false, NULL));
 #if 0
-        printf("Key up rawCode=0x%x charsIgnoringModifiers=%c keyCode=%u ascii=%i %c utf8=%s\n",
+        printf("Key up rawCode=0x%x charsIgnoringModifiers=%c keyCode=%u utf8=%s\n",
                [event keyCode],
                [charsIgnoringModifiers length] > 0 ? [charsIgnoringModifiers characterAtIndex:0] :
                                                      ' ',
                keyCode,
-               ascii,
-               ascii,
                utf8_buf);
 #endif
       }
diff --git a/intern/ghost/intern/GHOST_SystemSDL.cpp b/intern/ghost/intern/GHOST_SystemSDL.cpp
index a29bfd9489d..d912b57f049 100644
--- a/intern/ghost/intern/GHOST_SystemSDL.cpp
+++ b/intern/ghost/intern/GHOST_SystemSDL.cpp
@@ -279,6 +279,141 @@ static GHOST_TKey convertSDLKey(SDL_Scancode key)
 }
 #undef GXMAP
 
+static char convert_keyboard_event_to_ascii(const SDL_KeyboardEvent &sdl_sub_evt)
+{
+  SDL_Keycode sym = sdl_sub_evt.keysym.sym;
+  if (sym > 127) {
+    switch (sym) {
+      case SDLK_KP_DIVIDE:
+        sym = '/';
+        break;
+      case SDLK_KP_MULTIPLY:
+        sym = '*';
+        break;
+      case SDLK_KP_MINUS:
+        sym = '-';
+        break;
+      case SDLK_KP_PLUS:
+        sym = '+';
+        break;
+      case SDLK_KP_1:
+        sym = '1';
+        break;
+      case SDLK_KP_2:
+        sym = '2';
+        break;
+      case SDLK_KP_3:
+        sym = '3';
+        break;
+      case SDLK_KP_4:
+        sym = '4';
+        break;
+      case SDLK_KP_5:
+        sym = '5';
+        break;
+      case SDLK_KP_6:
+        sym = '6';
+        break;
+      case SDLK_KP_7:
+        sym = '7';
+        break;
+      case SDLK_KP_8:
+        sym = '8';
+        break;
+      case SDLK_KP_9:
+        sym = '9';
+        break;
+      case SDLK_KP_0:
+        sym = '0';
+        break;
+      case SDLK_KP_PERIOD:
+        sym = '.';
+        break;
+      default:
+        sym = 0;
+        break;
+    }
+  }
+  else {
+    if (sdl_sub_evt.keysym.mod & (KMOD_LSHIFT | KMOD_RSHIFT)) {
+      /* Weak US keyboard assumptions. */
+      if (sym >= 'a' && sym <= ('a' + 32)) {
+        sym -= 32;
+      }
+      else {
+        switch (sym) {
+          case '`':
+            sym = '~';
+            break;
+          case '1':
+            sym = '!';
+            break;
+          case '2':
+            sym = '@';
+            break;
+          case '3':
+            sym = '#';
+            break;
+          case '4':
+            sym = '$';
+            break;
+          case '5':
+            sym = '%';
+            break;
+          case '6':
+            sym = '^';
+            break;
+          case '7':
+            sym = '&';
+            break;
+          case '8':
+            sym = '*';
+            break;
+          case '9':
+            sym = '(';
+            break;
+          case '0':
+            sym = ')';
+            break;
+          case '-':
+            sym = '_';
+            break;
+          case '=':
+            sym = '+';
+            break;
+          case '[':
+            sym = '{';
+            break;
+          case ']':
+            sym = '}';
+            break;
+          case '\\':
+            sym = '|';
+            break;
+          case ';':
+            sym = ':';
+            break;
+          case '\'':
+            sym = '"';
+            break;
+          case ',':
+            sym = '<';
+            break;
+          case '.':
+            sym = '>';
+            break;
+          case '/':
+            sym = '?';
+            break;
+          default:
+            break;
+        }
+      }
+    }
+  }
+  return (char)sym;
+}
+
 /**
  * Events don't always have valid windows,
  * but GHOST needs a window _always_. fallback to the GL window.
@@ -454,9 +589,9 @@ void GHOST_SystemSDL::processEvent(SDL_Event *sdl_event)
     case SDL_KEYDOWN:
     case SDL_KEYUP: {
       SDL_KeyboardEvent &sdl_sub_evt = sdl_event->key;
-      SDL_Keycode sym = sdl_sub_evt.keysym.sym;
       GHOST_TEventType type = (sdl_sub_evt.state == SDL_PRESSED) ? GHOST_kEventKeyDown :
                                                                    GHOST_kEventKeyUp;
+      const bool is_repeat = sdl_sub_evt.repeat != 0;
 
       GHOST_WindowSDL *window = findGhostWindow(
           SDL_GetWindowFromID_fallback(sdl_sub_evt.windowID));
@@ -465,138 +600,15 @@ void GHOST_SystemSDL::processEvent(SDL_Event *sdl_event)
       GHOST_TKey gkey = convertSDLKey(sdl_sub_evt.keysym.scancode);
       /* NOTE: the `sdl_sub_evt.keysym.sym` is truncated,
        * for unicode support ghost has to be modified. */
-      // printf("%d\n", sym);
-      if (sym > 127) {
-        switch (sym) {
-          case SDLK_KP_DIVIDE:
-            sym = '/';
-            break;
-          case SDLK_KP_MULTIPLY:
-            sym = '*';
-            break;
-          case SDLK_KP_MINUS:
-            sym = '-';
-            break;
-          case SDLK_KP_PLUS:
-            sym = '+';
-            break;
-          case SDLK_KP_1:
-            sym = '1';
-            break;
-          case SDLK_KP_2:
-            sym = '2';
-            break;
-          case SDLK_KP_3:
-            sym = '3';
-            break;
-          case SDLK_KP_4:
-            sym = '4';
-            break;
-          case SDLK_KP_5:
-            sym = '5';
-            break;
-          case SDLK_KP_6:
-            sym = '6';
-            break;
-          case SDLK_KP_7:
-            sym = '7';
-            break;
-          case SDLK_KP_8:
-            sym = '8';
-            break;
-          case SDLK_KP_9:
-            sym = '9';
-            break;
-          case SDLK_KP_0:
-            sym = '0';
-            break;
-          case SDLK_KP_PERIOD:
-            sym = '.';
-            break;
-          default:
-            sym = 0;
-            break;
-        }
-      }
-      else {
-        if (sdl_sub_evt.keysym.mod & (KMOD_LSHIFT | KMOD_RSHIFT)) {
-          /* lame US keyboard assumptions */
-          if (sym >= 'a' && sym <= ('a' + 32)) {
-            sym -= 32;
-          }
-          else {
-            switch (sym) {
-              case '`':
-                sym = '~';
-                break;
-              case '1':
-                sym = '!';
-                break;
-              case '2':
-                sym = '@';
-                break;
-              case '3':
-                sym = '#';
-                break;
-              case '4':
-                sym = '$';
-                break;
-              case '5':
-                sym = '%';
-                break;
-              case '6':
-                sym = '^';
-                break;
-              case '7':
-                sym = '&';
-                break;
-              case '8':
-                sym = '*';
-                break;
-              case '9':
-                sym = '(';
-                break;
-              case '0':
-                sym = ')';
-                break;
-              case '-':
-                sym = '_';
-                break;
-              case '=':
-                sym = '+';
-                break;
-              case '[':
-                sym = '{';
-                break;
-              case ']':
-                sym = '}';
-                break;
-              case '\\':
-                sym = '|';
-                break;
-              case ';':
-                sym = ':';
-                break;
-              case '\'':
-                sym = '"';
-                break;
-              case ',':
-                sym = '<';
-                break;
-              case '.':
-                sym = '>';
-                break;
-              case '/':
-                sym = '?';
-                break;
-              default:
-                break;
-            }
-          }
-        }
+
+      /* TODO(@campbellbarton): support full unicode, SDL supports this but it needs to be
+       * explicitly enabled via #SDL_StartTextInput which GHOST would have to wrap. */
+      char utf8_buf[sizeof(GHOST_TEventKeyData::utf8_buf)] = {'\0'};
+      if (type == GHOST_kEventKeyDown) {
+        utf8_buf[0] = convert_keyboard_event_to_ascii(sdl_sub_evt);
       }
 
-      g_event = new GHOST_EventKey(getMilliSeconds(), type, window, gkey, sym, nullptr, false);
+      g_event = new GHOST_EventKey(getMilliSeconds(), type, window, gkey, is_repeat, utf8_buf);
       break;
     }
   }
diff --git a/intern/ghost/intern/GHOST_SystemWayland.cpp b/intern/ghost/intern/GHOST_SystemWayland.cpp
index 08aa640c5cd..d7520f1243f 100644
--- a/intern/ghost/intern/GHOST_SystemWayland.cpp
+++ b/intern/ghost/intern/GHOST_SystemWayland.cpp
@@ -128,11 +128,6 @@ static bool use_gnome_confine_hack = false;
  */
 #define EVDEV_OFFSET 8
 
-struct buffer_t {
-  void *data = nullptr;
-  size_t size = 0;
-};
-
 struct cursor_t {
   bool visible = false;
   /**
@@ -147,13 +142,11 @@ struct cursor_t {
   struct wl_buffer *wl_buffer = nullptr;
   struct wl_cursor_image wl_image = {0};
   struct wl_cursor_theme *wl_theme = nullptr;
-  struct buffer_t *file_buffer = nullptr;
+  void *custom_data = nullptr;
+  size_t custom_data_size = 0;
   int size = 0;
   std::string theme_name;
-  /** Outputs on which the cursor is visible. */
-  std::unordered_set<const output_t *> outputs;
 
-  int theme_scale = 1;
   int custom_scale = 1;
 };
 
@@ -235,6 +228,11 @@ struct input_state_pointer_t {
    */
   wl_fixed_t xy[2] = {0, 0};
 
+  /** Outputs on which the cursor is visible. */
+  std::unordered_set<const output_t *> outputs;
+
+  int theme_scale = 1;
+
   /** The serial of the last used pointer or tablet. */
   uint32_t serial = 0;
 
@@ -400,6 +398,19 @@ static input_state_pointer_t *input_state_pointer_active(input_t *input)
   return nullptr;
 }
 
+static input_state_pointer_t *input_state_pointer_from_cursor_surface(input_t *input,
+                                                                      const wl_surface *wl_surface)
+{
+  if (ghost_wl_surface_own_cursor_pointer(wl_surface)) {
+    return &input->pointer;
+  }
+  if (ghost_wl_surface_own_cursor_tablet(wl_surface)) {
+    return &input->tablet;
+  }
+  GHOST_ASSERT(0, "Surface found without pointer/tablet tag");
+  return nullptr;
+}
+
 static void display_destroy(display_t *d)
 {
   if (d->data_device_manager) {
@@ -449,11 +460,12 @@ static void display_destroy(display_t *d)
     if (input->data_device) {
       wl_data_device_release(input->data_device);
     }
+
+    if (input->cursor.custom_data) {
+      munmap(input->cursor.custom_data, input->cursor.custom_data_size);
+    }
+
     if (input->wl_pointer) {
-      if (input->cursor.file_buffer) {
-        munmap(input->cursor.file_buffer->data, input->cursor.file_buffer->size);
-        delete input->cursor.file_buffer;
-      }
       if (input->cursor.wl_surface) {
         wl_surface_destroy(input->cursor.wl_surface);
       }
@@ -747,7 +759,83 @@ static const std::vector<std::string> mime_send = {
     "text/plain",
 };
 
-#undef LOG
+static int memfd_create_sealed(const char *name)
+{
+#ifdef HAVE_MEMFD_CREATE
+  const int fd = memfd_create(name, MFD_CLOEXEC | MFD_ALLOW_SEALING);
+  if (fd >= 0) {
+    fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK | F_SEAL_SEAL);
+  }
+  return fd;
+#else  /* HAVE_MEMFD_CREATE */
+  char *path = getenv("XDG_RUNTIME_DIR");
+  if (!path) {
+    errno = ENOENT;
+    return -1;
+  }
+  char *tmpname;
+  asprintf(&tmpname, "%s/%s-XXXXXX", path, name);
+  const int fd = mkostemp(tmpname, O_CLOEXEC);
+  if (fd >= 0) {
+    unlink(tmpname);
+  }
+  free(tmpname);
+  return fd;
+#endif /* !HAVE_MEMFD_CREATE */
+}
+
+static size_t ghost_wl_shm_format_as_size(enum wl_shm_format format)
+{
+  switch (format) {
+    case WL_SHM_FORMAT_ARGB8888: {
+      return 4;
+    }
+    default: {
+      /* Support other formats as needed. */
+      GHOST_ASSERT(0, "Unexpected format passed in!");
+      return 4;
+    }
+  }
+}
+
+/**
+ * Return a #wl_buffer, ready to have it's data filled in or NULL in case of failure.
+ * The caller is responsible for calling `unmap(buffer_data, buffer_size)`.
+ *
+ * \param r_buffer_data: The buffer to be filled.
+ * \param r_buffer_data_size: The size of `r_buffer_data` in bytes.
+ */
+static wl_buffer *ghost_wl_buffer_create_for_image(struct wl_shm *shm,
+                                                   const int32_t size_xy[2],
+                                                   enum wl_shm_format format,
+                                                   void **r_buffer_data,
+                                                   size_t *r_buffer_data_size)
+{
+  const int fd = memfd_create_sealed("ghost-wl-buffer");
+  wl_buffer *buffer = nullptr;
+  if (fd >= 0) {
+    const int32_t buffer_stride = size_xy[0] * ghost_wl_shm_format_as_size(format);
+    const int32_t buffer_size = buffer_stride * size_xy[1];
+    if (posix_fallocate(fd, 0, buffer_size) == 0) {
+      void *buffer_data = mmap(nullptr, buffer_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+      if (buffer_data != MAP_FAILED) {
+        struct wl_shm_pool *pool = wl_shm_create_pool(shm, fd, buffer_size);
+        buffer = wl_shm_pool_create_buffer(pool, 0, UNPACK2(size_xy), buffer_stride, format);
+        wl_shm_pool_destroy(pool);
+        if (buffer) {
+          *r_buffer_data = buffer_data;
+          *r_buffer_data_size = (size_t)buffer_size;
+        }
+        else {
+          /* Highly unlikely. */
+          munmap(buffer_data, buffer_size);
+        }
+      }
+    }
+    close(fd);
+  }
+  return buffer;
+}
 
 /** \} */
 
@@ -1285,19 +1373,22 @@ static const struct wl_buffer_listener cursor_buffer_listener = {
 static CLG_LogRef LOG_WL_CURSOR_SURFACE = {"ghost.wl.handle.cursor_surface"};
 #define LOG (&LOG_WL_CURSOR_SURFACE)
 
-static bool update_cursor_scale(cursor_t &cursor, wl_shm *shm)
+static bool update_cursor_scale(cursor_t &cursor,
+                                wl_shm *shm,
+                                input_state_pointer_t *input_state,
+                                wl_surface *cursor_surface)
 {
   int scale = 0;
-  for (const output_t *output : cursor.outputs) {
+  for (const output_t *output : input_state->outputs) {
     if (output->scale > scale) {
       scale = output->scale;
     }
   }
 
-  if (scale > 0 && cursor.theme_scale != scale) {
-    cursor.theme_scale = scale;
+  if (scale > 0 && input_state->theme_scale != scale) {
+    input_state->theme_scale = scale;
     if (!cursor.is_custom) {
-      wl_surface_set_buffer_scale(cursor.wl_surface, scale);
+      wl_surface_set_buffer_scale(cursor_surface, scale);
     }
     wl_cursor_theme_destroy(cursor.wl_theme);
     cursor.wl_theme = wl_cursor_theme_load(cursor.theme_name.c_str(), scale * cursor.size, shm);
@@ -1307,7 +1398,7 @@ static bool update_cursor_scale(cursor_t &cursor, wl_shm *shm)
 }
 
 static void cursor_surface_handle_enter(void *data,
-                                        struct wl_surface * /*wl_surface*/,
+                                        struct wl_surface *wl_surface,
                                         struct wl_output *output)
 {
   if (!ghost_wl_output_own(output)) {
@@ -1317,13 +1408,14 @@ static void cursor_surface_handle_enter(void *data,
   CLOG_INFO(LOG, 2, "handle_enter");
 
   input_t *input = static_cast<input_t *>(data);
+  input_state_pointer_t *input_state = input_state_pointer_from_cursor_surface(input, wl_surface);
   const output_t *reg_output = ghost_wl_output_user_data(output);
-  input->cursor.outputs.insert(reg_output);
-  update_cursor_scale(input->cursor, input->system->shm());
+  input_state->outputs.insert(reg_output);
+  update_cursor_scale(input->cursor, input->system->shm(), input_state, wl_surface);
 }
 
 static void cursor_surface_handle_leave(void *data,
-                                        struct wl_surface * /*wl_surface*/,
+                                        struct wl_surface *wl_surface,
                                         struct wl_output *output)
 {
   if (!(output && ghost_wl_output_own(output))) {
@@ -1333,9 +1425,10 @@ static void cursor_surface_handle_leave(void *data,
   CLOG_INFO(LOG, 2, "handle_leave");
 
   input_t *input = static_cast<input_t *>(data);
+  input_state_pointer_t *input_state = input_state_pointer_from_cursor_surface(input, wl_surface);
   const output_t *reg_output = ghost_wl_output_user_data(output);
-  input->cursor.outputs.erase(reg_output);
-  update_cursor_scale(input->cursor, input->system->shm());
+  input_state->outputs.erase(reg_output);
+  update_cursor_scale(input->cursor, input->system->shm(), input_state, wl_surface);
 }
 
 static const struct wl_surface_listener cursor_surface_listener = {
@@ -1879,6 +1972,8 @@ static void tablet_seat_handle_tool_added(void *data,
 
   /* Every tool has it's own cursor surface. */
   tool_input->cursor_surface = wl_compositor_create_surface(input->system->compositor());
+  ghost_wl_surface_tag_cursor_tablet(tool_input->cursor_surface);
+
   wl_surface_add_listener(tool_input->cursor_surface, &cursor_surface_listener, (void *)input);
 
   zwp_tablet_tool_v2_add_listener(id, &tablet_tool_listner, tool_input);
@@ -2162,8 +2257,8 @@ static void keyboard_handle_key(void *data,
 
   if (wl_surface *focus_surface = input->keyboard.wl_surface) {
     GHOST_IWindow *win = ghost_wl_surface_user_data(focus_surface);
-    input->system->pushEvent(new GHOST_EventKey(
-        input->system->getMilliSeconds(), etype, win, gkey, '\0', utf8_buf, false));
+    input->system->pushEvent(
+        new GHOST_EventKey(input->system->getMilliSeconds(), etype, win, gkey, false, utf8_buf));
   }
 
   /* An existing payload means the key repeat timer is reset and will be added again. */
@@ -2195,9 +2290,8 @@ static void keyboard_handle_key(void *data,
                                              GHOST_kEventKeyDown,
                                              win,
                                              payload->key_data.gkey,
-                                             '\0',
-                                             utf8_buf,
-                                             true));
+                                             true,
+                                             utf8_buf));
       }
     };
     input->key_repeat.timer = input->system->installTimer(
@@ -2282,13 +2376,14 @@ static void seat_handle_capabilities(void *data,
     input->cursor.wl_surface = wl_compositor_create_surface(input->system->compositor());
     input->cursor.visible = true;
     input->cursor.wl_buffer = nullptr;
-    input->cursor.file_buffer = new buffer_t;
     if (!get_cursor_settings(input->cursor.theme_name, input->cursor.size)) {
       input->cursor.theme_name = std::string();
       input->cursor.size = default_cursor_size;
     }
     wl_pointer_add_listener(input->wl_pointer, &pointer_listener, data);
+
     wl_surface_add_listener(input->cursor.wl_surface, &cursor_surface_listener, data);
+    ghost_wl_surface_tag_cursor_pointer(input->cursor.wl_surface);
   }
 
   if (capabilities & WL_SEAT_CAPABILITY_KEYBOARD) {
@@ -2502,7 +2597,17 @@ static void output_handle_done(void *data, struct wl_output * /*wl_output*/)
 
 static void output_handle_scale(void *data, struct wl_output * /*wl_output*/, const int32_t factor)
 {
+  CLOG_INFO(LOG, 2, "scale");
   static_cast<output_t *>(data)->scale = factor;
+
+  if (window_manager) {
+    for (GHOST_IWindow *iwin : window_manager->getWindows()) {
+      GHOST_WindowWayland *win = static_cast<GHOST_WindowWayland *>(iwin);
+      win->outputs_changed_update_scale();
+      /* TODO(@campbellbarton): support refreshing the UI when the DPI changes.
+       * There are glitches when resizing the monitor which would be nice to solve. */
+    }
+  }
 }
 
 static const struct wl_output_listener output_listener = {
@@ -3139,19 +3244,30 @@ GHOST_IWindow *GHOST_SystemWayland::createWindow(const char *title,
 static void cursor_buffer_show(const input_t *input)
 {
   const cursor_t *c = &input->cursor;
-  const int scale = c->is_custom ? c->custom_scale : c->theme_scale;
-  const int32_t hotspot_x = int32_t(c->wl_image.hotspot_x) / scale;
-  const int32_t hotspot_y = int32_t(c->wl_image.hotspot_y) / scale;
-  wl_pointer_set_cursor(
-      input->wl_pointer, input->pointer.serial, c->wl_surface, hotspot_x, hotspot_y);
-  for (struct zwp_tablet_tool_v2 *zwp_tablet_tool_v2 : input->tablet_tools) {
-    tablet_tool_input_t *tool_input = static_cast<tablet_tool_input_t *>(
-        zwp_tablet_tool_v2_get_user_data(zwp_tablet_tool_v2));
-    zwp_tablet_tool_v2_set_cursor(zwp_tablet_tool_v2,
-                                  input->tablet.serial,
-                                  tool_input->cursor_surface,
-                                  hotspot_x,
-                                  hotspot_y);
+
+  if (input->wl_pointer) {
+    const int scale = c->is_custom ? c->custom_scale : input->pointer.theme_scale;
+    const int32_t hotspot_x = int32_t(c->wl_image.hotspot_x) / scale;
+    const int32_t hotspot_y = int32_t(c->wl_image.hotspot_y) / scale;
+    if (input->wl_pointer) {
+      wl_pointer_set_cursor(
+          input->wl_pointer, input->pointer.serial, c->wl_surface, hotspot_x, hotspot_y);
+    }
+  }
+
+  if (!input->tablet_tools.empty()) {
+    const int scale = c->is_custom ? c->custom_scale : input->tablet.theme_scale;
+    const int32_t hotspot_x = int32_t(c->wl_image.hotspot_x) / scale;
+    const int32_t hotspot_y = int32_t(c->wl_image.hotspot_y) / scale;
+    for (struct zwp_tablet_tool_v2 *zwp_tablet_tool_v2 : input->tablet_tools) {
+      tablet_tool_input_t *tool_input = static_cast<tablet_tool_input_t *>(
+          zwp_tablet_tool_v2_get_user_data(zwp_tablet_tool_v2));
+      zwp_tablet_tool_v2_set_cursor(zwp_tablet_tool_v2,
+                                    input->tablet.serial,
+                                    tool_input->cursor_surface,
+                                    hotspot_x,
+                                    hotspot_y);
+    }
   }
 }
 
@@ -3169,52 +3285,77 @@ static void cursor_buffer_hide(const input_t *input)
   }
 }
 
-static void cursor_buffer_set(const input_t *input, wl_buffer *buffer)
+/**
+ * Needed to ensure the cursor size is always a multiple of scale.
+ */
+static int cursor_buffer_compatible_scale_from_image(const struct wl_cursor_image *wl_image,
+                                                     int scale)
 {
-  const cursor_t *c = &input->cursor;
-  const int scale = c->is_custom ? c->custom_scale : c->theme_scale;
-
-  const bool visible = (c->visible && c->is_hardware);
-
-  const int32_t image_size_x = int32_t(c->wl_image.width);
-  const int32_t image_size_y = int32_t(c->wl_image.height);
+  const int32_t image_size_x = int32_t(wl_image->width);
+  const int32_t image_size_y = int32_t(wl_image->height);
+  while (scale > 1) {
+    if ((image_size_x % scale) == 0 && (image_size_y % scale) == 0) {
+      break;
+    }
+    scale -= 1;
+  }
+  return scale;
+}
 
-  /* This is a requirement of WAYLAND, when this isn't the case,
-   * it causes Blender's window to close intermittently. */
+static void cursor_buffer_set_surface_impl(const input_t *input,
+                                           wl_buffer *buffer,
+                                           struct wl_surface *wl_surface,
+                                           const int scale)
+{
+  const wl_cursor_image *wl_image = &input->cursor.wl_image;
+  const int32_t image_size_x = int32_t(wl_image->width);
+  const int32_t image_size_y = int32_t(wl_image->height);
   GHOST_ASSERT((image_size_x % scale) == 0 && (image_size_y % scale) == 0,
                "The size must be a multiple of the scale!");
 
-  const int32_t hotspot_x = int32_t(c->wl_image.hotspot_x) / scale;
-  const int32_t hotspot_y = int32_t(c->wl_image.hotspot_y) / scale;
+  wl_surface_set_buffer_scale(wl_surface, scale);
+  wl_surface_attach(wl_surface, buffer, 0, 0);
+  wl_surface_damage(wl_surface, 0, 0, image_size_x, image_size_y);
+  wl_surface_commit(wl_surface);
+}
 
-  wl_surface_set_buffer_scale(c->wl_surface, scale);
-  wl_surface_attach(c->wl_surface, buffer, 0, 0);
-  wl_surface_damage(c->wl_surface, 0, 0, image_size_x, image_size_y);
-  wl_surface_commit(c->wl_surface);
+static void cursor_buffer_set(const input_t *input, wl_buffer *buffer)
+{
+  const cursor_t *c = &input->cursor;
+  const wl_cursor_image *wl_image = &input->cursor.wl_image;
+  const bool visible = (c->visible && c->is_hardware);
 
-  wl_pointer_set_cursor(input->wl_pointer,
-                        input->pointer.serial,
-                        visible ? c->wl_surface : nullptr,
-                        hotspot_x,
-                        hotspot_y);
+  /* This is a requirement of WAYLAND, when this isn't the case,
+   * it causes Blender's window to close intermittently. */
+  if (input->wl_pointer) {
+    const int scale = cursor_buffer_compatible_scale_from_image(
+        wl_image, c->is_custom ? c->custom_scale : input->pointer.theme_scale);
+    const int32_t hotspot_x = int32_t(wl_image->hotspot_x) / scale;
+    const int32_t hotspot_y = int32_t(wl_image->hotspot_y) / scale;
+    cursor_buffer_set_surface_impl(input, buffer, c->wl_surface, scale);
+    wl_pointer_set_cursor(input->wl_pointer,
+                          input->pointer.serial,
+                          visible ? c->wl_surface : nullptr,
+                          hotspot_x,
+                          hotspot_y);
+  }
 
   /* Set the cursor for all tablet tools as well. */
-  for (struct zwp_tablet_tool_v2 *zwp_tablet_tool_v2 : input->tablet_tools) {
-    tablet_tool_input_t *tool_input = static_cast<tablet_tool_input_t *>(
-        zwp_tablet_tool_v2_get_user_data(zwp_tablet_tool_v2));
-
-    /* FIXME: for some reason cursor scale is applied twice (when the scale isn't 1x),
-     * this happens both in gnome-shell & KDE. Setting the surface scale here doesn't help. */
-    wl_surface_set_buffer_scale(tool_input->cursor_surface, scale);
-    wl_surface_attach(tool_input->cursor_surface, buffer, 0, 0);
-    wl_surface_damage(tool_input->cursor_surface, 0, 0, image_size_x, image_size_y);
-    wl_surface_commit(tool_input->cursor_surface);
-
-    zwp_tablet_tool_v2_set_cursor(zwp_tablet_tool_v2,
-                                  input->tablet.serial,
-                                  visible ? tool_input->cursor_surface : nullptr,
-                                  hotspot_x,
-                                  hotspot_y);
+  if (!input->tablet_tools.empty()) {
+    const int scale = cursor_buffer_compatible_scale_from_image(
+        wl_image, c->is_custom ? c->custom_scale : input->tablet.theme_scale);
+    const int32_t hotspot_x = int32_t(wl_image->hotspot_x) / scale;
+    const int32_t hotspot_y = int32_t(wl_image->hotspot_y) / scale;
+    for (struct zwp_tablet_tool_v2 *zwp_tablet_tool_v2 : input->tablet_tools) {
+      tablet_tool_input_t *tool_input = static_cast<tablet_tool_input_t *>(
+          zwp_tablet_tool_v2_get_user_data(zwp_tablet_tool_v2));
+      cursor_buffer_set_surface_impl(input, buffer, tool_input->cursor_surface, scale);
+      zwp_tablet_tool_v2_set_cursor(zwp_tablet_tool_v2,
+                                    input->tablet.serial,
+                                    visible ? tool_input->cursor_surface : nullptr,
+                                    hotspot_x,
+                                    hotspot_y);
+    }
   }
 }
 
@@ -3347,55 +3488,19 @@ GHOST_TSuccess GHOST_SystemWayland::setCustomCursorShape(uint8_t *bitmap,
 
   cursor_t *cursor = &d->inputs[0]->cursor;
 
-  static const int32_t stride = sizex * 4; /* ARGB */
-  cursor->file_buffer->size = (size_t)stride * sizey;
-
-#ifdef HAVE_MEMFD_CREATE
-  const int fd = memfd_create("blender-cursor-custom", MFD_CLOEXEC | MFD_ALLOW_SEALING);
-  if (fd >= 0) {
-    fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK | F_SEAL_SEAL);
-  }
-#else
-  char *path = getenv("XDG_RUNTIME_DIR");
-  if (!path) {
-    errno = ENOENT;
-    return GHOST_kFailure;
-  }
-
-  char *tmpname;
-  asprintf(&tmpname, "%s/%s", path, "blender-XXXXXX");
-  const int fd = mkostemp(tmpname, O_CLOEXEC);
-  if (fd >= 0) {
-    unlink(tmpname);
+  if (cursor->custom_data) {
+    munmap(cursor->custom_data, cursor->custom_data_size);
+    cursor->custom_data = nullptr;
+    cursor->custom_data_size = 0; /* Not needed, but the value is no longer meaningful. */
   }
-  free(tmpname);
-#endif
-
-  if (UNLIKELY(fd < 0)) {
-    return GHOST_kFailure;
-  }
-
-  if (UNLIKELY(posix_fallocate(fd, 0, int32_t(cursor->file_buffer->size)) != 0)) {
-    return GHOST_kFailure;
-  }
-
-  cursor->file_buffer->data = mmap(
-      nullptr, cursor->file_buffer->size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
 
-  if (UNLIKELY(cursor->file_buffer->data == MAP_FAILED)) {
-    cursor->file_buffer->data = nullptr;
-    close(fd);
+  const int32_t size_xy[2] = {sizex, sizey};
+  wl_buffer *buffer = ghost_wl_buffer_create_for_image(
+      d->shm, size_xy, WL_SHM_FORMAT_ARGB8888, &cursor->custom_data, &cursor->custom_data_size);
+  if (buffer == nullptr) {
     return GHOST_kFailure;
   }
 
-  struct wl_shm_pool *pool = wl_shm_create_pool(d->shm, fd, int32_t(cursor->file_buffer->size));
-
-  wl_buffer *buffer = wl_shm_pool_create_buffer(
-      pool, 0, sizex, sizey, stride, WL_SHM_FORMAT_ARGB8888);
-
-  wl_shm_pool_destroy(pool);
-  close(fd);
-
   wl_buffer_add_listener(buffer, &cursor_buffer_listener, cursor);
 
   static constexpr uint32_t black = 0xFF000000;
@@ -3406,7 +3511,7 @@ GHOST_TSuccess GHOST_SystemWayland::setCustomCursorShape(uint8_t *bitmap,
   uint32_t *pixel;
 
   for (int y = 0; y < sizey; ++y) {
-    pixel = &static_cast<uint32_t *>(cursor->file_buffer->data)[y * sizex];
+    pixel = &static_cast<uint32_t *>(cursor->custom_data)[y * sizex];
     for (int x = 0; x < sizex; ++x) {
       if ((x % 8) == 0) {
         datab = *bitmap++;
@@ -3445,7 +3550,7 @@ GHOST_TSuccess GHOST_SystemWayland::setCustomCursorShape(uint8_t *bitmap,
 GHOST_TSuccess GHOST_SystemWayland::getCursorBitmap(GHOST_CursorBitmapRef *bitmap)
 {
   cursor_t *cursor = &d->inputs[0]->cursor;
-  if (cursor->file_buffer->data == nullptr) {
+  if (cursor->custom_data == nullptr) {
     return GHOST_kFailure;
   }
   if (!cursor->is_custom) {
@@ -3458,7 +3563,7 @@ GHOST_TSuccess GHOST_SystemWayland::getCursorBitmap(GHOST_CursorBitmapRef *bitma
   bitmap->hot_spot[0] = cursor->wl_image.hotspot_x;
   bitmap->hot_spot[1] = cursor->wl_image.hotspot_y;
 
-  bitmap->data = (uint8_t *)static_cast<void *>(cursor->file_buffer->data);
+  bitmap->data = (uint8_t *)static_cast<void *>(cursor->custom_data);
 
   return GHOST_kSuccess;
 }
@@ -3549,6 +3654,8 @@ static input_grab_state_t input_grab_state_from_mode(const GHOST_TGrabCursorMode
 
 static const char *ghost_wl_output_tag_id = "GHOST-output";
 static const char *ghost_wl_surface_tag_id = "GHOST-window";
+static const char *ghost_wl_surface_cursor_pointer_tag_id = "GHOST-cursor-pointer";
+static const char *ghost_wl_surface_cursor_tablet_tag_id = "GHOST-cursor-tablet";
 
 bool ghost_wl_output_own(const struct wl_output *output)
 {
@@ -3560,6 +3667,16 @@ bool ghost_wl_surface_own(const struct wl_surface *surface)
   return wl_proxy_get_tag((struct wl_proxy *)surface) == &ghost_wl_surface_tag_id;
 }
 
+bool ghost_wl_surface_own_cursor_pointer(const struct wl_surface *surface)
+{
+  return wl_proxy_get_tag((struct wl_proxy *)surface) == &ghost_wl_surface_cursor_pointer_tag_id;
+}
+
+bool ghost_wl_surface_own_cursor_tablet(const struct wl_surface *surface)
+{
+  return wl_proxy_get_tag((struct wl_proxy *)surface) == &ghost_wl_surface_cursor_tablet_tag_id;
+}
+
 void ghost_wl_output_tag(struct wl_output *output)
 {
   wl_proxy_set_tag((struct wl_proxy *)output, &ghost_wl_output_tag_id);
@@ -3570,6 +3687,16 @@ void ghost_wl_surface_tag(struct wl_surface *surface)
   wl_proxy_set_tag((struct wl_proxy *)surface, &ghost_wl_surface_tag_id);
 }
 
+void ghost_wl_surface_tag_cursor_pointer(struct wl_surface *surface)
+{
+  wl_proxy_set_tag((struct wl_proxy *)surface, &ghost_wl_surface_cursor_pointer_tag_id);
+}
+
+void ghost_wl_surface_tag_cursor_tablet(struct wl_surface *surface)
+{
+  wl_proxy_set_tag((struct wl_proxy *)surface, &ghost_wl_surface_cursor_tablet_tag_id);
+}
+
 /** \} */
 
 /* -------------------------------------------------------------------- */
diff --git a/intern/ghost/intern/GHOST_SystemWayland.h b/intern/ghost/intern/GHOST_SystemWayland.h
index 0d51759aa2f..bdf5f2fc273 100644
--- a/intern/ghost/intern/GHOST_SystemWayland.h
+++ b/intern/ghost/intern/GHOST_SystemWayland.h
@@ -41,6 +41,12 @@ bool ghost_wl_surface_own(const struct wl_surface *surface);
 void ghost_wl_surface_tag(struct wl_surface *surface);
 GHOST_WindowWayland *ghost_wl_surface_user_data(struct wl_surface *surface);
 
+bool ghost_wl_surface_own_cursor_pointer(const struct wl_surface *surface);
+void ghost_wl_surface_tag_cursor_pointer(struct wl_surface *surface);
+
+bool ghost_wl_surface_own_cursor_tablet(const struct wl_surface *surface);
+void ghost_wl_surface_tag_cursor_tablet(struct wl_surface *surface);
+
 #ifdef WITH_GHOST_WAYLAND_DYNLOAD
 /**
  * Return true when all required WAYLAND libraries are present,
diff --git a/intern/ghost/intern/GHOST_SystemWin32.cpp b/intern/ghost/intern/GHOST_SystemWin32.cpp
index 1365c281ab4..5a930209376 100644
--- a/intern/ghost/intern/GHOST_SystemWin32.cpp
+++ b/intern/ghost/intern/GHOST_SystemWin32.cpp
@@ -1256,9 +1256,8 @@ GHOST_EventKey *GHOST_SystemWin32::processKeyEvent(GHOST_WindowWin32 *window, RA
                                keyDown ? GHOST_kEventKeyDown : GHOST_kEventKeyUp,
                                window,
                                key,
-                               ascii,
-                               utf8_char,
-                               is_repeat);
+                               is_repeat,
+                               utf8_char);
 
     // GHOST_PRINTF("%c\n", ascii); // we already get this info via EventPrinter
   }
diff --git a/intern/ghost/intern/GHOST_SystemX11.cpp b/intern/ghost/intern/GHOST_SystemX11.cpp
index 5e549b54afd..00cc5f3af8f 100644
--- a/intern/ghost/intern/GHOST_SystemX11.cpp
+++ b/intern/ghost/intern/GHOST_SystemX11.cpp
@@ -745,9 +745,8 @@ bool GHOST_SystemX11::processEvents(bool waitForEvent)
                                                GHOST_kEventKeyDown,
                                                window,
                                                ghost_key_from_keysym(modifiers[i]),
-                                               '\0',
-                                               nullptr,
-                                               false));
+                                               false,
+                                               nullptr));
                 }
               }
             }
@@ -1017,7 +1016,9 @@ void GHOST_SystemX11::processEvent(XEvent *xe)
     case KeyRelease: {
       XKeyEvent *xke = &(xe->xkey);
       KeySym key_sym;
+      char *utf8_buf = nullptr;
       char ascii;
+
 #if defined(WITH_X11_XINPUT) && defined(X_HAVE_UTF8_STRING)
       /* utf8_array[] is initial buffer used for Xutf8LookupString().
        * if the length of the utf8 string exceeds this array, allocate
@@ -1026,12 +1027,10 @@ void GHOST_SystemX11::processEvent(XEvent *xe)
        * at the end of this buffer when the constructor of GHOST_EventKey
        * reads 6 bytes regardless of the effective data length. */
       char utf8_array[16 * 6 + 5]; /* 16 utf8 characters */
-      char *utf8_buf = utf8_array;
-      int len = 1; /* at least one null character will be stored */
+      int len = 1;                 /* at least one null character will be stored */
 #else
-      char *utf8_buf = nullptr;
+      char utf8_array[sizeof(GHOST_TEventKeyData::utf8_buf)] = {'\0'};
 #endif
-
       GHOST_TEventType type = (xke->type == KeyPress) ? GHOST_kEventKeyDown : GHOST_kEventKeyUp;
 
       GHOST_TKey gkey;
@@ -1151,81 +1150,94 @@ void GHOST_SystemX11::processEvent(XEvent *xe)
 #endif
 
 #if defined(WITH_X11_XINPUT) && defined(X_HAVE_UTF8_STRING)
-      /* Setting unicode on key-up events gives #XLookupNone status. */
-      XIC xic = window->getX11_XIC();
-      if (xic && xke->type == KeyPress) {
-        Status status;
+      /* Only used for key-press. */
+      XIC xic = nullptr;
+#endif
 
-        /* Use utf8 because its not locale repentant, from XORG docs. */
-        if (!(len = Xutf8LookupString(
-                  xic, xke, utf8_buf, sizeof(utf8_array) - 5, &key_sym, &status))) {
-          utf8_buf[0] = '\0';
-        }
+      if (xke->type == KeyPress) {
+        utf8_buf = utf8_array;
+#if defined(WITH_X11_XINPUT) && defined(X_HAVE_UTF8_STRING)
+        /* Setting unicode on key-up events gives #XLookupNone status. */
+        xic = window->getX11_XIC();
+        if (xic) {
+          Status status;
+
+          /* Use utf8 because its not locale repentant, from XORG docs. */
+          if (!(len = Xutf8LookupString(
+                    xic, xke, utf8_buf, sizeof(utf8_array) - 5, &key_sym, &status))) {
+            utf8_buf[0] = '\0';
+          }
 
-        if (status == XBufferOverflow) {
-          utf8_buf = (char *)malloc(len + 5);
-          len = Xutf8LookupString(xic, xke, utf8_buf, len, &key_sym, &status);
-        }
+          if (status == XBufferOverflow) {
+            utf8_buf = (char *)malloc(len + 5);
+            len = Xutf8LookupString(xic, xke, utf8_buf, len, &key_sym, &status);
+          }
 
-        if (ELEM(status, XLookupChars, XLookupBoth)) {
-          if ((unsigned char)utf8_buf[0] >= 32) { /* not an ascii control character */
-            /* do nothing for now, this is valid utf8 */
+          if (ELEM(status, XLookupChars, XLookupBoth)) {
+            if ((unsigned char)utf8_buf[0] >= 32) { /* not an ascii control character */
+              /* do nothing for now, this is valid utf8 */
+            }
+            else {
+              utf8_buf[0] = '\0';
+            }
+          }
+          else if (status == XLookupKeySym) {
+            /* this key doesn't have a text representation, it is a command
+             * key of some sort */
           }
           else {
-            utf8_buf[0] = '\0';
+            printf("Bad keycode lookup. Keysym 0x%x Status: %s\n",
+                   (unsigned int)key_sym,
+                   (status == XLookupNone   ? "XLookupNone" :
+                    status == XLookupKeySym ? "XLookupKeySym" :
+                                              "Unknown status"));
+
+            printf("'%.*s' %p %p\n", len, utf8_buf, xic, m_xim);
           }
         }
-        else if (status == XLookupKeySym) {
-          /* this key doesn't have a text representation, it is a command
-           * key of some sort */
-        }
         else {
-          printf("Bad keycode lookup. Keysym 0x%x Status: %s\n",
-                 (unsigned int)key_sym,
-                 (status == XLookupNone   ? "XLookupNone" :
-                  status == XLookupKeySym ? "XLookupKeySym" :
-                                            "Unknown status"));
-
-          printf("'%.*s' %p %p\n", len, utf8_buf, xic, m_xim);
+          utf8_buf[0] = '\0';
         }
-      }
-      else {
-        utf8_buf[0] = '\0';
-      }
 #endif
+        if (!utf8_buf[0] && ascii) {
+          utf8_buf[0] = ascii;
+          utf8_buf[1] = '\0';
+        }
+      }
 
-      g_event = new GHOST_EventKey(
-          getMilliSeconds(), type, window, gkey, ascii, utf8_buf, is_repeat);
+      g_event = new GHOST_EventKey(getMilliSeconds(), type, window, gkey, is_repeat, utf8_buf);
 
 #if defined(WITH_X11_XINPUT) && defined(X_HAVE_UTF8_STRING)
       /* when using IM for some languages such as Japanese,
        * one event inserts multiple utf8 characters */
-      if (xic && xke->type == KeyPress) {
+      if (xke->type == KeyPress && xic) {
         unsigned char c;
         int i = 0;
-        while (1) {
-          /* search character boundary */
-          if ((unsigned char)utf8_buf[i++] > 0x7f) {
+        while (true) {
+          /* Search character boundary. */
+          if ((uchar)utf8_buf[i++] > 0x7f) {
             for (; i < len; ++i) {
               c = utf8_buf[i];
-              if (c < 0x80 || c > 0xbf)
+              if (c < 0x80 || c > 0xbf) {
                 break;
+              }
             }
           }
 
-          if (i >= len)
+          if (i >= len) {
             break;
-
-          /* enqueue previous character */
+          }
+          /* Enqueue previous character. */
           pushEvent(g_event);
 
           g_event = new GHOST_EventKey(
-              getMilliSeconds(), type, window, gkey, '\0', &utf8_buf[i], is_repeat);
+              getMilliSeconds(), type, window, gkey, is_repeat, &utf8_buf[i]);
         }
       }
 
-      if (utf8_buf != utf8_array)
+      if (utf8_buf != utf8_array) {
         free(utf8_buf);
+      }
 #endif
 
       break;
diff --git a/intern/ghost/intern/GHOST_WindowManager.cpp b/intern/ghost/intern/GHOST_WindowManager.cpp
index 19684a44169..e8785cbdb24 100644
--- a/intern/ghost/intern/GHOST_WindowManager.cpp
+++ b/intern/ghost/intern/GHOST_WindowManager.cpp
@@ -162,17 +162,3 @@ GHOST_IWindow *GHOST_WindowManager::getWindowAssociatedWithOSWindow(void *osWind
   }
   return nullptr;
 }
-
-bool GHOST_WindowManager::getAnyModifiedState()
-{
-  bool isAnyModified = false;
-  std::vector<GHOST_IWindow *>::iterator iter;
-
-  for (iter = m_windows.begin(); iter != m_windows.end(); ++iter) {
-    if ((*iter)->getModifiedState()) {
-      isAnyModified = true;
-    }
-  }
-
-  return isAnyModified;
-}
diff --git a/intern/ghost/intern/GHOST_WindowManager.h b/intern/ghost/intern/GHOST_WindowManager.h
index 9d20413c433..bf7a0f4ec61 100644
--- a/intern/ghost/intern/GHOST_WindowManager.h
+++ b/intern/ghost/intern/GHOST_WindowManager.h
@@ -109,12 +109,6 @@ class GHOST_WindowManager {
    */
   GHOST_IWindow *getWindowAssociatedWithOSWindow(void *osWindow);
 
-  /**
-   * Return true if any windows has a modified status
-   * \return True if any window has unsaved changes
-   */
-  bool getAnyModifiedState();
-
  protected:
   /** The list of windows managed */
   std::vector<GHOST_IWindow *> m_windows;
diff --git a/intern/ghost/test/multitest/EventToBuf.c b/intern/ghost/test/multitest/EventToBuf.c
index baab32328c3..846a867a371 100644
--- a/intern/ghost/test/multitest/EventToBuf.c
+++ b/intern/ghost/test/multitest/EventToBuf.c
@@ -218,8 +218,10 @@ void event_to_buf(GHOST_EventHandle evt, char buf[128])
     case GHOST_kEventKeyUp: {
       GHOST_TEventKeyData *kd = data;
       pos += sprintf(pos, " - key: %s (%d)", keytype_to_string(kd->key), kd->key);
-      if (kd->ascii)
-        pos += sprintf(pos, " ascii: '%c' (%d)", kd->ascii, kd->ascii);
+      /* TODO: ideally this would print the unicode character. */
+      if (kd->utf8_buf[0]) {
+        pos += sprintf(pos, " ascii: '%c' (%d)", kd->utf8_buf[0], kd->utf8_buf[0]);
+      }
       break;
     }
   }
diff --git a/intern/guardedalloc/intern/mallocn_lockfree_impl.c b/intern/guardedalloc/intern/mallocn_lockfree_impl.c
index 73912ad07b1..300e2000a14 100644
--- a/intern/guardedalloc/intern/mallocn_lockfree_impl.c
+++ b/intern/guardedalloc/intern/mallocn_lockfree_impl.c
@@ -44,6 +44,7 @@ enum {
 #define PTR_FROM_MEMHEAD(memhead) (memhead + 1)
 #define MEMHEAD_ALIGNED_FROM_PTR(ptr) (((MemHeadAligned *)ptr) - 1)
 #define MEMHEAD_IS_ALIGNED(memhead) ((memhead)->len & (size_t)MEMHEAD_ALIGN_FLAG)
+#define MEMHEAD_LEN(memhead) ((memhead)->len & ~((size_t)(MEMHEAD_ALIGN_FLAG)))
 
 /* Uncomment this to have proper peak counter. */
 #define USE_ATOMIC_MAX
@@ -78,8 +79,8 @@ print_error(const char *str, ...)
 
 size_t MEM_lockfree_allocN_len(const void *vmemh)
 {
-  if (vmemh) {
-    return MEMHEAD_FROM_PTR(vmemh)->len & ~((size_t)(MEMHEAD_ALIGN_FLAG));
+  if (LIKELY(vmemh)) {
+    return MEMHEAD_LEN(MEMHEAD_FROM_PTR(vmemh));
   }
 
   return 0;
@@ -87,14 +88,11 @@ size_t MEM_lockfree_allocN_len(const void *vmemh)
 
 void MEM_lockfree_freeN(void *vmemh)
 {
-  if (leak_detector_has_run) {
+  if (UNLIKELY(leak_detector_has_run)) {
     print_error("%s\n", free_after_leak_detection_message);
   }
 
-  MemHead *memh = MEMHEAD_FROM_PTR(vmemh);
-  size_t len = MEM_lockfree_allocN_len(vmemh);
-
-  if (vmemh == NULL) {
+  if (UNLIKELY(vmemh == NULL)) {
     print_error("Attempt to free NULL pointer\n");
 #ifdef WITH_ASSERT_ABORT
     abort();
@@ -102,6 +100,9 @@ void MEM_lockfree_freeN(void *vmemh)
     return;
   }
 
+  MemHead *memh = MEMHEAD_FROM_PTR(vmemh);
+  size_t len = MEMHEAD_LEN(memh);
+
   atomic_sub_and_fetch_u(&totblock, 1);
   atomic_sub_and_fetch_z(&mem_in_use, len);
 
diff --git a/intern/opensubdiv/CMakeLists.txt b/intern/opensubdiv/CMakeLists.txt
index bb3aa16a9fe..14cc6a70cd5 100644
--- a/intern/opensubdiv/CMakeLists.txt
+++ b/intern/opensubdiv/CMakeLists.txt
@@ -42,18 +42,6 @@ if(WITH_OPENSUBDIV)
     internal/base/util.cc
     internal/base/util.h
 
-    # Device.
-    internal/device/device_context_cuda.cc
-    internal/device/device_context_cuda.h
-    internal/device/device_context_glsl_compute.cc
-    internal/device/device_context_glsl_compute.h
-    internal/device/device_context_glsl_transform_feedback.cc
-    internal/device/device_context_glsl_transform_feedback.h
-    internal/device/device_context_opencl.cc
-    internal/device/device_context_opencl.h
-    internal/device/device_context_openmp.cc
-    internal/device/device_context_openmp.h
-
     # Evaluator.
     internal/evaluator/eval_output.cc
     internal/evaluator/eval_output.h
diff --git a/intern/opensubdiv/internal/base/opensubdiv_capi.cc b/intern/opensubdiv/internal/base/opensubdiv_capi.cc
index 85f8120c76b..40d820836b9 100644
--- a/intern/opensubdiv/internal/base/opensubdiv_capi.cc
+++ b/intern/opensubdiv/internal/base/opensubdiv_capi.cc
@@ -21,55 +21,15 @@
 #endif
 
 #include "internal/base/util.h"
-#include "internal/device/device_context_cuda.h"
-#include "internal/device/device_context_glsl_compute.h"
-#include "internal/device/device_context_glsl_transform_feedback.h"
-#include "internal/device/device_context_opencl.h"
-#include "internal/device/device_context_openmp.h"
-
-using blender::opensubdiv::CUDADeviceContext;
-using blender::opensubdiv::GLSLComputeDeviceContext;
-using blender::opensubdiv::GLSLTransformFeedbackDeviceContext;
-using blender::opensubdiv::OpenCLDeviceContext;
-using blender::opensubdiv::OpenMPDeviceContext;
 
 void openSubdiv_init()
 {
-  // Ensure all OpenGL strings are cached.
-  openSubdiv_getAvailableEvaluators();
 }
 
 void openSubdiv_cleanup()
 {
 }
 
-int openSubdiv_getAvailableEvaluators()
-{
-  int flags = OPENSUBDIV_EVALUATOR_CPU;
-
-  if (OpenMPDeviceContext::isSupported()) {
-    flags |= OPENSUBDIV_EVALUATOR_OPENMP;
-  }
-
-  if (OpenCLDeviceContext::isSupported()) {
-    flags |= OPENSUBDIV_EVALUATOR_OPENCL;
-  }
-
-  if (CUDADeviceContext::isSupported()) {
-    flags |= OPENSUBDIV_EVALUATOR_CUDA;
-  }
-
-  if (GLSLTransformFeedbackDeviceContext::isSupported()) {
-    flags |= OPENSUBDIV_EVALUATOR_GLSL_TRANSFORM_FEEDBACK;
-  }
-
-  if (GLSLComputeDeviceContext::isSupported()) {
-    flags |= OPENSUBDIV_EVALUATOR_GLSL_COMPUTE;
-  }
-
-  return flags;
-}
-
 int openSubdiv_getVersionHex()
 {
 #if defined(OPENSUBDIV_VERSION_NUMBER)
diff --git a/intern/opensubdiv/internal/device/device_context_cuda.cc b/intern/opensubdiv/internal/device/device_context_cuda.cc
deleted file mode 100644
index cd4336265a5..00000000000
--- a/intern/opensubdiv/internal/device/device_context_cuda.cc
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright 2020 Blender Foundation. All rights reserved.
-//
-// 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.
-//
-// Author: Sergey Sharybin
-
-#include "internal/device/device_context_cuda.h"
-
-namespace blender {
-namespace opensubdiv {
-
-bool CUDADeviceContext::isSupported()
-{
-  // TODO(sergey): Add CUDA device support, using CUDA-RT API.
-  return false;
-}
-
-CUDADeviceContext::CUDADeviceContext()
-{
-}
-
-CUDADeviceContext::~CUDADeviceContext()
-{
-}
-
-}  // namespace opensubdiv
-}  // namespace blender
diff --git a/intern/opensubdiv/internal/device/device_context_cuda.h b/intern/opensubdiv/internal/device/device_context_cuda.h
deleted file mode 100644
index d1bfb15fbcb..00000000000
--- a/intern/opensubdiv/internal/device/device_context_cuda.h
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright 2020 Blender Foundation. All rights reserved.
-//
-// 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.
-//
-// Author: Sergey Sharybin
-
-#ifndef OPENSUBDIV_DEVICE_CONTEXT_CUDA_H_
-#define OPENSUBDIV_DEVICE_CONTEXT_CUDA_H_
-
-namespace blender {
-namespace opensubdiv {
-
-class CUDADeviceContext {
- public:
-  // Stateless check to see whether CUDA functionality is available on this
-  // platform.
-  static bool isSupported();
-
-  CUDADeviceContext();
-  ~CUDADeviceContext();
-};
-
-}  // namespace opensubdiv
-}  // namespace blender
-
-#endif  // _OPENSUBDIV_DEVICE_CONTEXT_CUDA_H_
diff --git a/intern/opensubdiv/internal/device/device_context_glsl_compute.cc b/intern/opensubdiv/internal/device/device_context_glsl_compute.cc
deleted file mode 100644
index 7b416976099..00000000000
--- a/intern/opensubdiv/internal/device/device_context_glsl_compute.cc
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright 2020 Blender Foundation. All rights reserved.
-//
-// 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.
-//
-// Author: Sergey Sharybin
-
-#include "internal/device/device_context_glsl_compute.h"
-
-#include <GL/glew.h>
-
-namespace blender {
-namespace opensubdiv {
-
-bool GLSLComputeDeviceContext::isSupported()
-{
-  return GLEW_VERSION_4_3 || GLEW_ARB_compute_shader;
-}
-
-GLSLComputeDeviceContext::GLSLComputeDeviceContext()
-{
-}
-
-GLSLComputeDeviceContext::~GLSLComputeDeviceContext()
-{
-}
-
-}  // namespace opensubdiv
-}  // namespace blender
diff --git a/intern/opensubdiv/internal/device/device_context_glsl_compute.h b/intern/opensubdiv/internal/device/device_context_glsl_compute.h
deleted file mode 100644
index f64c7d1954b..00000000000
--- a/intern/opensubdiv/internal/device/device_context_glsl_compute.h
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright 2020 Blender Foundation. All rights reserved.
-//
-// 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.
-//
-// Author: Sergey Sharybin
-
-#ifndef OPENSUBDIV_DEVICE_CONTEXT_GLSL_COMPUTE_H_
-#define OPENSUBDIV_DEVICE_CONTEXT_GLSL_COMPUTE_H_
-
-namespace blender {
-namespace opensubdiv {
-
-class GLSLComputeDeviceContext {
- public:
-  // Stateless check to see whether GLSL compute functionality is
-  // available on this platform.
-  static bool isSupported();
-
-  GLSLComputeDeviceContext();
-  ~GLSLComputeDeviceContext();
-};
-
-}  // namespace opensubdiv
-}  // namespace blender
-
-#endif  // _OPENSUBDIV_DEVICE_CONTEXT_GLSL_COMPUTE_H_
diff --git a/intern/opensubdiv/internal/device/device_context_glsl_transform_feedback.cc b/intern/opensubdiv/internal/device/device_context_glsl_transform_feedback.cc
deleted file mode 100644
index ef897608b6e..00000000000
--- a/intern/opensubdiv/internal/device/device_context_glsl_transform_feedback.cc
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright 2020 Blender Foundation. All rights reserved.
-//
-// 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.
-//
-// Author: Sergey Sharybin
-
-#include "internal/device/device_context_glsl_transform_feedback.h"
-
-#include <GL/glew.h>
-
-namespace blender {
-namespace opensubdiv {
-
-bool GLSLTransformFeedbackDeviceContext::isSupported()
-{
-  return GLEW_VERSION_4_1;
-}
-
-GLSLTransformFeedbackDeviceContext::GLSLTransformFeedbackDeviceContext()
-{
-}
-
-GLSLTransformFeedbackDeviceContext::~GLSLTransformFeedbackDeviceContext()
-{
-}
-
-}  // namespace opensubdiv
-}  // namespace blender
diff --git a/intern/opensubdiv/internal/device/device_context_glsl_transform_feedback.h b/intern/opensubdiv/internal/device/device_context_glsl_transform_feedback.h
deleted file mode 100644
index 7bbbba1380f..00000000000
--- a/intern/opensubdiv/internal/device/device_context_glsl_transform_feedback.h
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright 2020 Blender Foundation. All rights reserved.
-//
-// 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.
-//
-// Author: Sergey Sharybin
-
-#ifndef OPENSUBDIV_DEVICE_CONTEXT_GLSL_TRANSFORM_FEEDBACK_H_
-#define OPENSUBDIV_DEVICE_CONTEXT_GLSL_TRANSFORM_FEEDBACK_H_
-
-namespace blender {
-namespace opensubdiv {
-
-class GLSLTransformFeedbackDeviceContext {
- public:
-  // Stateless check to see whether GLSL transform feedback functionality is
-  // available on this platform.
-  static bool isSupported();
-
-  GLSLTransformFeedbackDeviceContext();
-  ~GLSLTransformFeedbackDeviceContext();
-};
-
-}  // namespace opensubdiv
-}  // namespace blender
-
-#endif  // _OPENSUBDIV_DEVICE_CONTEXT_GLSL_TRANSFORM_FEEDBACK_H_
diff --git a/intern/opensubdiv/internal/device/device_context_opencl.cc b/intern/opensubdiv/internal/device/device_context_opencl.cc
deleted file mode 100644
index 1670ea3c9d0..00000000000
--- a/intern/opensubdiv/internal/device/device_context_opencl.cc
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright 2020 Blender Foundation. All rights reserved.
-//
-// 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.
-//
-// Author: Sergey Sharybin
-
-#include "internal/device/device_context_opencl.h"
-
-namespace blender {
-namespace opensubdiv {
-
-bool OpenCLDeviceContext::isSupported()
-{
-  // TODO(sergey): Add support of OpenCL devices.
-  return false;
-}
-
-OpenCLDeviceContext::OpenCLDeviceContext()
-{
-}
-
-OpenCLDeviceContext::~OpenCLDeviceContext()
-{
-}
-
-}  // namespace opensubdiv
-}  // namespace blender
diff --git a/intern/opensubdiv/internal/device/device_context_opencl.h b/intern/opensubdiv/internal/device/device_context_opencl.h
deleted file mode 100644
index 57ec6ed3bb6..00000000000
--- a/intern/opensubdiv/internal/device/device_context_opencl.h
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright 2020 Blender Foundation. All rights reserved.
-//
-// 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.
-//
-// Author: Sergey Sharybin
-
-#ifndef OPENSUBDIV_DEVICE_CONTEXT_OPENCL_H_
-#define OPENSUBDIV_DEVICE_CONTEXT_OPENCL_H_
-
-namespace blender {
-namespace opensubdiv {
-
-class OpenCLDeviceContext {
- public:
-  // Stateless check to see whether OpenCL functionality is available on this
-  // platform.
-  static bool isSupported();
-
-  OpenCLDeviceContext();
-  ~OpenCLDeviceContext();
-};
-
-}  // namespace opensubdiv
-}  // namespace blender
-
-#endif  // _OPENSUBDIV_DEVICE_CONTEXT_OPENCL_H_
diff --git a/intern/opensubdiv/internal/device/device_context_openmp.cc b/intern/opensubdiv/internal/device/device_context_openmp.cc
deleted file mode 100644
index e01312fefaf..00000000000
--- a/intern/opensubdiv/internal/device/device_context_openmp.cc
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright 2020 Blender Foundation. All rights reserved.
-//
-// 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.
-//
-// Author: Sergey Sharybin
-
-#include "internal/device/device_context_openmp.h"
-
-namespace blender {
-namespace opensubdiv {
-
-bool OpenMPDeviceContext::isSupported()
-{
-#ifdef OPENSUBDIV_HAS_OPENMP
-  return true;
-#else
-  return false;
-#endif
-}
-
-OpenMPDeviceContext::OpenMPDeviceContext()
-{
-}
-
-OpenMPDeviceContext::~OpenMPDeviceContext()
-{
-}
-
-}  // namespace opensubdiv
-}  // namespace blender
diff --git a/intern/opensubdiv/internal/device/device_context_openmp.h b/intern/opensubdiv/internal/device/device_context_openmp.h
deleted file mode 100644
index 2bebbdf40bc..00000000000
--- a/intern/opensubdiv/internal/device/device_context_openmp.h
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright 2020 Blender Foundation. All rights reserved.
-//
-// 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.
-//
-// Author: Sergey Sharybin
-
-#ifndef OPENSUBDIV_DEVICE_CONTEXT_OPENMP_H_
-#define OPENSUBDIV_DEVICE_CONTEXT_OPENMP_H_
-
-namespace blender {
-namespace opensubdiv {
-
-class OpenMPDeviceContext {
- public:
-  // Stateless check to see whether OpenMP functionality is available on this
-  // platform.
-  static bool isSupported();
-
-  OpenMPDeviceContext();
-  ~OpenMPDeviceContext();
-};
-
-}  // namespace opensubdiv
-}  // namespace blender
-
-#endif  // _OPENSUBDIV_DEVICE_CONTEXT_OPENMP_H_
diff --git a/intern/opensubdiv/internal/evaluator/evaluator_cache_impl.cc b/intern/opensubdiv/internal/evaluator/evaluator_cache_impl.cc
index 2fffcefa460..efac0926fef 100644
--- a/intern/opensubdiv/internal/evaluator/evaluator_cache_impl.cc
+++ b/intern/opensubdiv/internal/evaluator/evaluator_cache_impl.cc
@@ -30,7 +30,7 @@ OpenSubdiv_EvaluatorCacheImpl::~OpenSubdiv_EvaluatorCacheImpl()
 OpenSubdiv_EvaluatorCacheImpl *openSubdiv_createEvaluatorCacheInternal(
     eOpenSubdivEvaluator evaluator_type)
 {
-  if (evaluator_type != eOpenSubdivEvaluator::OPENSUBDIV_EVALUATOR_GLSL_COMPUTE) {
+  if (evaluator_type != eOpenSubdivEvaluator::OPENSUBDIV_EVALUATOR_GPU) {
     return nullptr;
   }
   OpenSubdiv_EvaluatorCacheImpl *evaluator_cache;
diff --git a/intern/opensubdiv/internal/evaluator/evaluator_impl.cc b/intern/opensubdiv/internal/evaluator/evaluator_impl.cc
index 49a59c44be8..262b418169d 100644
--- a/intern/opensubdiv/internal/evaluator/evaluator_impl.cc
+++ b/intern/opensubdiv/internal/evaluator/evaluator_impl.cc
@@ -442,11 +442,6 @@ OpenSubdiv_EvaluatorImpl *openSubdiv_createEvaluatorInternal(
     eOpenSubdivEvaluator evaluator_type,
     OpenSubdiv_EvaluatorCacheImpl *evaluator_cache_descr)
 {
-  // Only CPU and GLCompute are implemented at the moment.
-  if (evaluator_type != OPENSUBDIV_EVALUATOR_CPU &&
-      evaluator_type != OPENSUBDIV_EVALUATOR_GLSL_COMPUTE) {
-    return NULL;
-  }
   using blender::opensubdiv::vector;
   TopologyRefiner *refiner = topology_refiner->impl->topology_refiner;
   if (refiner == NULL) {
@@ -551,8 +546,8 @@ OpenSubdiv_EvaluatorImpl *openSubdiv_createEvaluatorInternal(
   // Create OpenSubdiv's CPU side evaluator.
   blender::opensubdiv::EvalOutputAPI::EvalOutput *eval_output = nullptr;
 
-  const bool use_gl_evaluator = evaluator_type == OPENSUBDIV_EVALUATOR_GLSL_COMPUTE;
-  if (use_gl_evaluator) {
+  const bool use_gpu_evaluator = evaluator_type == OPENSUBDIV_EVALUATOR_GPU;
+  if (use_gpu_evaluator) {
     blender::opensubdiv::GpuEvalOutput::EvaluatorCache *evaluator_cache = nullptr;
     if (evaluator_cache_descr) {
       evaluator_cache = static_cast<blender::opensubdiv::GpuEvalOutput::EvaluatorCache *>(
diff --git a/intern/opensubdiv/opensubdiv_capi.h b/intern/opensubdiv/opensubdiv_capi.h
index a26ea36b863..1fa75a9a8c2 100644
--- a/intern/opensubdiv/opensubdiv_capi.h
+++ b/intern/opensubdiv/opensubdiv_capi.h
@@ -31,9 +31,6 @@ extern "C" {
 void openSubdiv_init(void);
 void openSubdiv_cleanup(void);
 
-// Bitmask of eOpenSubdivEvaluator.
-int openSubdiv_getAvailableEvaluators(void);
-
 int openSubdiv_getVersionHex(void);
 
 #ifdef __cplusplus
diff --git a/intern/opensubdiv/opensubdiv_capi_type.h b/intern/opensubdiv/opensubdiv_capi_type.h
index e78842036be..585d9bc49df 100644
--- a/intern/opensubdiv/opensubdiv_capi_type.h
+++ b/intern/opensubdiv/opensubdiv_capi_type.h
@@ -23,15 +23,9 @@
 extern "C" {
 #endif
 
-// Keep this a bitmask so it's possible to pass available
-// evaluators to Blender.
 typedef enum eOpenSubdivEvaluator {
-  OPENSUBDIV_EVALUATOR_CPU = (1 << 0),
-  OPENSUBDIV_EVALUATOR_OPENMP = (1 << 1),
-  OPENSUBDIV_EVALUATOR_OPENCL = (1 << 2),
-  OPENSUBDIV_EVALUATOR_CUDA = (1 << 3),
-  OPENSUBDIV_EVALUATOR_GLSL_TRANSFORM_FEEDBACK = (1 << 4),
-  OPENSUBDIV_EVALUATOR_GLSL_COMPUTE = (1 << 5),
+  OPENSUBDIV_EVALUATOR_CPU = 0,
+  OPENSUBDIV_EVALUATOR_GPU = 1,
 } eOpenSubdivEvaluator;
 
 typedef enum OpenSubdiv_SchemeType {
diff --git a/intern/opensubdiv/stub/opensubdiv_stub.cc b/intern/opensubdiv/stub/opensubdiv_stub.cc
index 24bdcbc79ff..5eaa2df9a27 100644
--- a/intern/opensubdiv/stub/opensubdiv_stub.cc
+++ b/intern/opensubdiv/stub/opensubdiv_stub.cc
@@ -28,11 +28,6 @@ void openSubdiv_cleanup()
 {
 }
 
-int openSubdiv_getAvailableEvaluators()
-{
-  return 0;
-}
-
 int openSubdiv_getVersionHex()
 {
   return 0;
diff --git a/release/datafiles/locale b/release/datafiles/locale
-Subproject 055bc5223c1cd249e32ccbc8e8796ba9925c8c3
+Subproject a2eb507891449a0b67582be9561840075513661
diff --git a/release/datafiles/userdef/userdef_default.c b/release/datafiles/userdef/userdef_default.c
index fba3c7882c6..b4a1ab6d5f8 100644
--- a/release/datafiles/userdef/userdef_default.c
+++ b/release/datafiles/userdef/userdef_default.c
@@ -174,7 +174,6 @@ const UserDef U_default = {
     .pie_menu_confirm = 0,
     .pie_menu_radius = 100,
     .pie_menu_threshold = 12,
-    .opensubdiv_compute_type = 0,
     .factor_display_type = USER_FACTOR_AS_FACTOR,
     .render_display_type = USER_RENDER_DISPLAY_WINDOW,
     .filebrowser_display_type = USER_TEMP_SPACE_DISPLAY_WINDOW,
diff --git a/release/scripts/addons b/release/scripts/addons
-Subproject 403b95ef6ff38918de966ed2a5843cfa3274a58
+Subproject 7a8502871c34db0343cc7de52d6b49b15a84238
diff --git a/release/scripts/modules/bl_i18n_utils/bl_extract_messages.py b/release/scripts/modules/bl_i18n_utils/bl_extract_messages.py
index 319fd3396a0..3edb5b445fe 100644
--- a/release/scripts/modules/bl_i18n_utils/bl_extract_messages.py
+++ b/release/scripts/modules/bl_i18n_utils/bl_extract_messages.py
@@ -803,20 +803,21 @@ def dump_src_messages(msgs, reports, settings):
                 line += data[pos:m.start()].count('\n')
                 msgsrc = rel_path + ":" + str(line)
                 _msgid = d.get("msg_raw")
-                # First, try the "multi-contexts" stuff!
-                _msgctxts = tuple(d.get("ctxt_raw{}".format(i)) for i in range(settings.PYGETTEXT_MAX_MULTI_CTXT))
-                if _msgctxts[0]:
-                    for _msgctxt in _msgctxts:
-                        if not _msgctxt:
-                            break
+                if _msgid not in {'""', "''"}:
+                    # First, try the "multi-contexts" stuff!
+                    _msgctxts = tuple(d.get("ctxt_raw{}".format(i)) for i in range(settings.PYGETTEXT_MAX_MULTI_CTXT))
+                    if _msgctxts[0]:
+                        for _msgctxt in _msgctxts:
+                            if not _msgctxt:
+                                break
+                            msgctxt, msgid = process_entry(_msgctxt, _msgid)
+                            process_msg(msgs, msgctxt, msgid, msgsrc, reports, check_ctxt_src, settings)
+                            reports["src_messages"].append((msgctxt, msgid, msgsrc))
+                    else:
+                        _msgctxt = d.get("ctxt_raw")
                         msgctxt, msgid = process_entry(_msgctxt, _msgid)
                         process_msg(msgs, msgctxt, msgid, msgsrc, reports, check_ctxt_src, settings)
                         reports["src_messages"].append((msgctxt, msgid, msgsrc))
-                else:
-                    _msgctxt = d.get("ctxt_raw")
-                    msgctxt, msgid = process_entry(_msgctxt, _msgid)
-                    process_msg(msgs, msgctxt, msgid, msgsrc, reports, check_ctxt_src, settings)
-                    reports["src_messages"].append((msgctxt, msgid, msgsrc))
 
                 pos = m.end()
                 line += data[m.start():pos].count('\n')
diff --git a/release/scripts/modules/bl_i18n_utils/settings.py b/release/scripts/modules/bl_i18n_utils/settings.py
index 408f8523b8d..3b69f8a6bf7 100644
--- a/release/scripts/modules/bl_i18n_utils/settings.py
+++ b/release/scripts/modules/bl_i18n_utils/settings.py
@@ -248,9 +248,14 @@ PYGETTEXT_KEYWORDS = (() +
     tuple(("{}\\((?:[^\"',]+,){{3}}\\s*" + _msg_re + r"\s*\)").format(it)
           for it in ("BMO_error_raise",)) +
 
-    tuple(("{}\\((?:[^\"',]+,)\\s*" + _msg_re + r"\s*(?:\)|,)").format(it)
+    tuple(("{}\\((?:[^\"',]+,){{2}}\\s*" + _msg_re + r"\s*(?:\)|,)").format(it)
           for it in ("BKE_modifier_set_error",)) +
 
+    # This one is a tad more risky, but in practice would not expect a name/uid string parameter
+    # (the second one in those functions) to ever have a comma in it, so think this is fine.
+    tuple(("{}\\((?:[^,]+,){{2}}\\s*" + _msg_re + r"\s*(?:\)|,)").format(it)
+          for it in ("modifier_subpanel_register", "gpencil_modifier_subpanel_register")) +
+
     # bUnitDef unit names.
     # NOTE: regex is a bit more complex than it would need too. Since the actual
     # identifier (`B_UNIT_DEF_`) is at the end, if it's simpler/too general it
@@ -297,6 +302,7 @@ WARN_MSGID_NOT_CAPITALIZED_ALLOWED = {
     "ascii",
     "author",                        # Addons' field. :/
     "bItasc",
+    "blender.org",
     "color_index is invalid",
     "cos(A)",
     "cosh(A)",
@@ -312,6 +318,7 @@ WARN_MSGID_NOT_CAPITALIZED_ALLOWED = {
     "glTF 2.0 (.glb/.gltf)",
     "glTF Binary (.glb)",
     "glTF Embedded (.gltf)",
+    "glTF Original PBR data",
     "glTF Separate (.gltf + .bin + textures)",
     "invoke() needs to be called before execute()",
     "iScale",
@@ -330,6 +337,7 @@ WARN_MSGID_NOT_CAPITALIZED_ALLOWED = {
     "mp3",
     "normal",
     "ogg",
+    "oneAPI",
     "p0",
     "px",
     "re",
@@ -340,6 +348,8 @@ WARN_MSGID_NOT_CAPITALIZED_ALLOWED = {
     "sinh(A)",
     "sqrt(x*x+y*y+z*z)",
     "sRGB",
+    "sRGB display space",
+    "sRGB display space with Filmic view transform",
     "tan(A)",
     "tanh(A)",
     "utf-8",
@@ -356,7 +366,9 @@ WARN_MSGID_NOT_CAPITALIZED_ALLOWED = {
     "all and invert unselected",
     "and AMD driver version 22.10 or newer",
     "and AMD Radeon Pro 21.Q4 driver or newer",
+    "and Linux driver version xx.xx.28000 or newer",
     "and NVIDIA driver version 470 or newer",
+    "and Windows driver version 101.1660 or newer",
     "available with",
     "brown fox",
     "can't save image while rendering",
@@ -431,6 +443,7 @@ WARN_MSGID_END_POINT_ALLOWED = {
     "The program will now close.",
     "Your graphics card or driver has limited support. It may work, but with issues.",
     "Your graphics card or driver is not supported.",
+    "Invalid surface UVs on %d curves.",
 }
 
 PARSER_CACHE_HASH = 'sha1'
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 74785c81bfd..462c954d54a 100644
--- a/release/scripts/modules/bl_i18n_utils/utils_spell_check.py
+++ b/release/scripts/modules/bl_i18n_utils/utils_spell_check.py
@@ -433,6 +433,7 @@ class SpellChecker:
         "polyline", "polylines",
         "probabilistically",
         "pulldown", "pulldowns",
+        "quadratically",
         "quantized",
         "quartic",
         "quaternion", "quaternions",
@@ -501,6 +502,7 @@ class SpellChecker:
         "luminance",
         "mantaflow",
         "matcap",
+        "microfacet",
         "midtones",
         "mipmap", "mipmaps", "mip",
         "ngon", "ngons",
@@ -508,6 +510,7 @@ class SpellChecker:
         "nurb", "nurbs",
         "perlin",
         "phong",
+        "photorealistic",
         "pinlight",
         "posterize",
         "qi",
@@ -675,7 +678,7 @@ class SpellChecker:
         "ascii",
         "atrac",
         "avx",
-        "bsdf",
+        "bsdf", "bsdfs",
         "bssrdf",
         "bw",
         "ccd",
@@ -708,14 +711,17 @@ class SpellChecker:
         "hdc",
         "hdr", "hdri", "hdris",
         "hh", "mm", "ss", "ff",  # hh:mm:ss:ff timecode
+        "hpg",  # Intel Xe-HPG architecture
         "hsv", "hsva", "hsl",
         "id",
         "ies",
         "ior",
         "itu",
         "jonswap",
+        "lfe",
         "lhs",
         "lmb", "mmb", "rmb",
+        "lscm",
         "kb",
         "mocap",
         "msgid", "msgids",
diff --git a/release/scripts/modules/blend_render_info.py b/release/scripts/modules/blend_render_info.py
index 37c5f6dd3ba..6b45a6f7e72 100755
--- a/release/scripts/modules/blend_render_info.py
+++ b/release/scripts/modules/blend_render_info.py
@@ -93,6 +93,11 @@ def _read_blend_rend_chunk_from_file(blendfile, filepath):
             break
 
         sizeof_data_left = struct.unpack('>i' if is_big_endian else '<i', blendfile.read(4))[0]
+        if sizeof_data_left < 0:
+            # Very unlikely, but prevent other errors.
+            sys.stderr.write("Negative block size found (corrupt file): %s\n" % filepath)
+            break
+
         # 4 from the `head_id`, another 4 for the size of the BHEAD.
         sizeof_bhead_left = sizeof_bhead - 8
 
diff --git a/release/scripts/modules/bpy_types.py b/release/scripts/modules/bpy_types.py
index aaa2ae59a0d..df0631ec26d 100644
--- a/release/scripts/modules/bpy_types.py
+++ b/release/scripts/modules/bpy_types.py
@@ -56,6 +56,21 @@ class Context(StructRNA):
         if value is None:
             return value
 
+        # If the attribute is a list property, apply subscripting.
+        if isinstance(value, list) and path_rest.startswith("["):
+            index_str, div, index_tail = path_rest[1:].partition("]")
+            if not div:
+                raise ValueError("Path index is not terminated: %s%s" % (attr, path_rest))
+            try:
+                index = int(index_str)
+            except ValueError:
+                raise ValueError("Path index is invalid: %s[%s]" % (attr, index_str))
+            if 0 <= index < len(value):
+                path_rest = index_tail
+                value = value[index]
+            else:
+                raise IndexError("Path index out of range: %s[%s]" % (attr, index_str))
+
         # Resolve the rest of the path if necessary.
         if path_rest:
             path_resolve_fn = getattr(value, "path_resolve", None)
diff --git a/release/scripts/presets/cycles/performance/Default.py b/release/scripts/presets/cycles/performance/Default.py
new file mode 100644
index 00000000000..5c25f23eca0
--- /dev/null
+++ b/release/scripts/presets/cycles/performance/Default.py
@@ -0,0 +1,12 @@
+import bpy
+render = bpy.context.scene.render
+cycles = bpy.context.scene.cycles
+
+render.threads_mode = 'AUTO'
+render.use_persistent_data = False
+cycles.debug_use_spatial_splits = False
+cycles.debug_use_compact_bvh = False
+cycles.debug_use_hair_bvh = True
+cycles.debug_bvh_time_steps = 0
+cycles.use_auto_tile = True
+cycles.tile_size = 2048
diff --git a/release/scripts/presets/cycles/performance/Faster_Render.py b/release/scripts/presets/cycles/performance/Faster_Render.py
new file mode 100644
index 00000000000..7f1e3c68f1f
--- /dev/null
+++ b/release/scripts/presets/cycles/performance/Faster_Render.py
@@ -0,0 +1,12 @@
+import bpy
+render = bpy.context.scene.render
+cycles = bpy.context.scene.cycles
+
+render.threads_mode = 'AUTO'
+render.use_persistent_data = True
+cycles.debug_use_spatial_splits = True
+cycles.debug_use_compact_bvh = False
+cycles.debug_use_hair_bvh = True
+cycles.debug_bvh_time_steps = 2
+cycles.use_auto_tile = True
+cycles.tile_size = 2048
diff --git a/release/scripts/presets/cycles/performance/Lower_Memory.py b/release/scripts/presets/cycles/performance/Lower_Memory.py
new file mode 100644
index 00000000000..d1a45f1888d
--- /dev/null
+++ b/release/scripts/presets/cycles/performance/Lower_Memory.py
@@ -0,0 +1,12 @@
+import bpy
+render = bpy.context.scene.render
+cycles = bpy.context.scene.cycles
+
+render.threads_mode = 'AUTO'
+render.use_persistent_data = False
+cycles.debug_use_spatial_splits = False
+cycles.debug_use_compact_bvh = True
+cycles.debug_use_hair_bvh = True
+cycles.debug_bvh_time_steps = 0
+cycles.use_auto_tile = True
+cycles.tile_size = 512
diff --git a/release/scripts/presets/keyconfig/keymap_data/blender_default.py b/release/scripts/presets/keyconfig/keymap_data/blender_default.py
index c0db6c5f523..d08efc6909b 100644
--- a/release/scripts/presets/keyconfig/keymap_data/blender_default.py
+++ b/release/scripts/presets/keyconfig/keymap_data/blender_default.py
@@ -1027,7 +1027,7 @@ def km_markers(params):
         ("marker.select_box", {"type": 'B', "value": 'PRESS'}, None),
         *_template_items_select_actions(params, "marker.select_all"),
         ("marker.delete", {"type": 'X', "value": 'PRESS'}, None),
-        ("marker.delete", {"type": 'DEL', "value": 'PRESS'}, None),
+        ("marker.delete", {"type": 'DEL', "value": 'PRESS'}, {"properties": [("confirm", False)]}),
         op_panel("TOPBAR_PT_name_marker", {"type": 'F2', "value": 'PRESS'}, [("keep_open", False)]),
         ("marker.move", {"type": 'G', "value": 'PRESS'}, None),
         ("marker.camera_bind", {"type": 'B', "value": 'PRESS', "ctrl": True}, None),
@@ -2578,10 +2578,8 @@ def km_nla_editor(params):
         ("nla.soundclip_add", {"type": 'K', "value": 'PRESS', "shift": True}, None),
         ("nla.meta_add", {"type": 'G', "value": 'PRESS', "ctrl": True}, None),
         ("nla.meta_remove", {"type": 'G', "value": 'PRESS', "ctrl": True, "alt": True}, None),
-        ("nla.duplicate", {"type": 'D', "value": 'PRESS', "shift": True},
-         {"properties": [("linked", False)]}),
-        ("nla.duplicate", {"type": 'D', "value": 'PRESS', "alt": True},
-         {"properties": [("linked", True)]}),
+        ("nla.duplicate_move", {"type": 'D', "value": 'PRESS', "shift": True}, None),
+        ("nla.duplicate_linked_move", {"type": 'D', "value": 'PRESS', "alt": True}, None),
         ("nla.make_single_user", {"type": 'U', "value": 'PRESS'}, None),
         ("nla.delete", {"type": 'X', "value": 'PRESS'}, None),
         ("nla.delete", {"type": 'DEL', "value": 'PRESS'}, None),
@@ -4397,7 +4395,7 @@ def km_face_mask(params):
 
     items.extend([
         *_template_items_select_actions(params, "paint.face_select_all"),
-        *_template_items_hide_reveal_actions("paint.face_select_hide", "paint.face_select_reveal"),
+        *_template_items_hide_reveal_actions("paint.face_select_hide", "paint.face_vert_reveal"),
         ("paint.face_select_linked", {"type": 'L', "value": 'PRESS', "ctrl": True}, None),
         ("paint.face_select_linked_pick", {"type": 'L', "value": 'PRESS'},
          {"properties": [("deselect", False)]}),
@@ -4418,6 +4416,7 @@ def km_weight_paint_vertex_selection(params):
 
     items.extend([
         *_template_items_select_actions(params, "paint.vert_select_all"),
+        *_template_items_hide_reveal_actions("paint.vert_select_hide", "paint.face_vert_reveal"),
         ("view3d.select_box", {"type": 'B', "value": 'PRESS'}, None),
         ("view3d.select_lasso", {"type": params.action_mouse, "value": 'CLICK_DRAG', "ctrl": True},
          {"properties": [("mode", 'ADD')]}),
@@ -4968,6 +4967,7 @@ def km_vertex_paint(params):
         op_menu("VIEW3D_MT_angle_control", {"type": 'R', "value": 'PRESS'}),
         ("wm.context_menu_enum", {"type": 'E', "value": 'PRESS'},
          {"properties": [("data_path", 'tool_settings.vertex_paint.brush.stroke_method')]}),
+        ("paint.face_vert_reveal", {"type": 'H', "value": 'PRESS', "alt": True}, None),
         *_template_items_context_panel("VIEW3D_PT_paint_vertex_context_menu", params.context_menu_event),
     ])
 
@@ -5015,6 +5015,7 @@ def km_weight_paint(params):
         ("wm.context_toggle", {"type": 'S', "value": 'PRESS', "shift": True},
          {"properties": [("data_path", 'tool_settings.weight_paint.brush.use_smooth_stroke')]}),
         op_menu_pie("VIEW3D_MT_wpaint_vgroup_lock_pie", {"type": 'K', "value": 'PRESS'}),
+        ("paint.face_vert_reveal", {"type": 'H', "value": 'PRESS', "alt": True}, None),
         *_template_items_context_panel("VIEW3D_PT_paint_weight_context_menu", params.context_menu_event),
     ])
 
diff --git a/release/scripts/presets/keyconfig/keymap_data/industry_compatible_data.py b/release/scripts/presets/keyconfig/keymap_data/industry_compatible_data.py
index d60bbfed67a..c9d66afb796 100644
--- a/release/scripts/presets/keyconfig/keymap_data/industry_compatible_data.py
+++ b/release/scripts/presets/keyconfig/keymap_data/industry_compatible_data.py
@@ -844,7 +844,7 @@ def km_markers(params):
          "shift": True}, {"properties": [("action", 'DESELECT')]}),
         ("marker.select_all", {"type": 'I', "value": 'PRESS', "ctrl": True}, {"properties": [("action", 'INVERT')]}),
         ("marker.delete", {"type": 'BACK_SPACE', "value": 'PRESS'}, None),
-        ("marker.delete", {"type": 'DEL', "value": 'PRESS'}, None),
+        ("marker.delete", {"type": 'DEL', "value": 'PRESS'}, {"properties": [("confirm", False)]}),
         op_panel("TOPBAR_PT_name_marker", {"type": 'RET', "value": 'PRESS'}, [("keep_open", False)]),
         ("marker.move", {"type": 'W', "value": 'PRESS'}, None),
     ])
@@ -2948,7 +2948,7 @@ def km_face_mask(params):
          {"properties": [("unselected", False)]}),
         ("paint.face_select_hide", {"type": 'H', "value": 'PRESS', "shift": True},
          {"properties": [("unselected", True)]}),
-        ("paint.face_select_reveal", {"type": 'H', "value": 'PRESS', "alt": True}, None),
+        ("paint.face_vert_reveal", {"type": 'H', "value": 'PRESS', "alt": True}, None),
         ("paint.face_select_linked", {"type": 'L', "value": 'PRESS', "ctrl": True}, None),
         ("paint.face_select_linked_pick", {"type": 'L', "value": 'PRESS'},
          {"properties": [("deselect", False)]}),
@@ -2969,6 +2969,9 @@ def km_weight_paint_vertex_selection(params):
 
     items.extend([
         ("paint.vert_select_all", {"type": 'A', "value": 'PRESS', "ctrl": True}, None),
+        ("paint.vert_select_hide", {"type": 'H', "value": 'PRESS', "shift": True},
+         {"properties": [("unselected", True)]}),
+        ("paint.face_vert_reveal", {"type": 'H', "value": 'PRESS', "alt": True}, None),
     ])
 
     return keymap
@@ -3330,6 +3333,7 @@ def km_vertex_paint(params):
         ("wm.context_toggle", {"type": 'S', "value": 'PRESS', "shift": True},
          {"properties": [("data_path", 'tool_settings.vertex_paint.brush.use_smooth_stroke')]}),
         op_menu("VIEW3D_MT_angle_control", {"type": 'R', "value": 'PRESS'}),
+        ("paint.face_vert_reveal", {"type": 'H', "value": 'PRESS', "alt": True}, None),
         *_template_items_context_panel("VIEW3D_PT_paint_vertex_context_menu", {"type": 'RIGHTMOUSE', "value": 'PRESS'}),
         # Tools
         ("paint.brush_select", {"type": 'D', "value": 'PRESS'},
@@ -3362,6 +3366,7 @@ def km_weight_paint(params):
          {"properties": [("data_path", 'weight_paint_object.data.use_paint_mask')]}),
         ("wm.context_toggle", {"type": 'S', "value": 'PRESS', "shift": True},
          {"properties": [("data_path", 'tool_settings.weight_paint.brush.use_smooth_stroke')]}),
+        ("paint.face_vert_reveal", {"type": 'H', "value": 'PRESS', "alt": True}, None),
         *_template_items_context_panel("VIEW3D_PT_paint_weight_context_menu", {"type": 'RIGHTMOUSE', "value": 'PRESS'}),
         # Bone selection for combined weight paint + pose mode.
         ("view3d.select", {"type": 'LEFTMOUSE', "value": 'PRESS', "ctrl": True}, None),
diff --git a/release/scripts/startup/bl_operators/node.py b/release/scripts/startup/bl_operators/node.py
index bad12ff4621..df4ca9ef170 100644
--- a/release/scripts/startup/bl_operators/node.py
+++ b/release/scripts/startup/bl_operators/node.py
@@ -14,6 +14,8 @@ from bpy.props import (
     StringProperty,
 )
 
+from bpy.app.translations import pgettext_tip as tip_
+
 
 class NodeSetting(PropertyGroup):
     value: StringProperty(
@@ -134,7 +136,7 @@ class NodeAddOperator:
         nodetype = properties["type"]
         bl_rna = bpy.types.Node.bl_rna_get_subclass(nodetype)
         if bl_rna is not None:
-            return bl_rna.description
+            return tip_(bl_rna.description)
         else:
             return ""
 
diff --git a/release/scripts/startup/bl_ui/__init__.py b/release/scripts/startup/bl_ui/__init__.py
index c61dde87d7c..c4e3df469b7 100644
--- a/release/scripts/startup/bl_ui/__init__.py
+++ b/release/scripts/startup/bl_ui/__init__.py
@@ -128,8 +128,8 @@ def register():
         return items
 
     WindowManager.addon_search = StringProperty(
-        name="Search",
-        description="Search within the selected filter",
+        name="Filter",
+        description="Filter by add-on name, author & category",
         options={'TEXTEDIT_UPDATE'},
     )
     WindowManager.addon_filter = EnumProperty(
diff --git a/release/scripts/startup/bl_ui/properties_data_camera.py b/release/scripts/startup/bl_ui/properties_data_camera.py
index 8213a865990..a9a032ac4a3 100644
--- a/release/scripts/startup/bl_ui/properties_data_camera.py
+++ b/release/scripts/startup/bl_ui/properties_data_camera.py
@@ -218,6 +218,8 @@ class DATA_PT_camera_dof(CameraButtonsPanel, Panel):
 
         col = layout.column()
         col.prop(dof, "focus_object", text="Focus on Object")
+        if dof.focus_object and dof.focus_object.type == 'ARMATURE':
+            col.prop_search(dof, "focus_subtarget", dof.focus_object.data, "bones", text="Focus on Bone")
         sub = col.column()
         sub.active = (dof.focus_object is None)
         sub.prop(dof, "focus_distance", text="Focus Distance")
diff --git a/release/scripts/startup/bl_ui/space_dopesheet.py b/release/scripts/startup/bl_ui/space_dopesheet.py
index a1c086db745..4d1514c2777 100644
--- a/release/scripts/startup/bl_ui/space_dopesheet.py
+++ b/release/scripts/startup/bl_ui/space_dopesheet.py
@@ -567,10 +567,10 @@ class DOPESHEET_PT_action(DopesheetActionPanelBase, Panel):
 
     @classmethod
     def poll(cls, context):
-        return bool(context.selected_visible_actions)
+        return bool(context.active_action)
 
     def draw(self, context):
-        action = context.selected_visible_actions[0]
+        action = context.active_action
         self.draw_generic_panel(context, self.layout, action)
 
 
diff --git a/release/scripts/startup/bl_ui/space_image.py b/release/scripts/startup/bl_ui/space_image.py
index 5d25d02d98e..ab3c863ea2d 100644
--- a/release/scripts/startup/bl_ui/space_image.py
+++ b/release/scripts/startup/bl_ui/space_image.py
@@ -306,6 +306,7 @@ class IMAGE_MT_uvs_snap(Menu):
 
         layout.operator("uv.snap_cursor", text="Cursor to Pixels").target = 'PIXELS'
         layout.operator("uv.snap_cursor", text="Cursor to Selected").target = 'SELECTED'
+        layout.operator("uv.snap_cursor", text="Cursor to Origin").target = 'ORIGIN'
 
 
 class IMAGE_MT_uvs_mirror(Menu):
@@ -572,6 +573,11 @@ class IMAGE_MT_uvs_snap_pie(Menu):
             text="Selected to Adjacent Unselected",
             icon='RESTRICT_SELECT_OFF',
         ).target = 'ADJACENT_UNSELECTED'
+        pie.operator(
+            "uv.snap_cursor",
+            text="Cursor to Origin",
+            icon='PIVOT_CURSOR',
+        ).target = 'ORIGIN'
 
 
 class IMAGE_MT_view_pie(Menu):
diff --git a/release/scripts/startup/bl_ui/space_sequencer.py b/release/scripts/startup/bl_ui/space_sequencer.py
index 060c00c0443..a99df1164a0 100644
--- a/release/scripts/startup/bl_ui/space_sequencer.py
+++ b/release/scripts/startup/bl_ui/space_sequencer.py
@@ -1650,7 +1650,7 @@ class SEQUENCER_PT_source(SequencerButtonsPanel, Panel):
                 if sound.samplerate <= 0:
                     split.label(text="Unknown")
                 else:
-                    split.label(text="%d Hz." % sound.samplerate, translate=False)
+                    split.label(text="%d Hz" % sound.samplerate, translate=False)
 
                 split = col.split(factor=0.5, align=False)
                 split.alignment = 'RIGHT'
diff --git a/release/scripts/startup/bl_ui/space_userpref.py b/release/scripts/startup/bl_ui/space_userpref.py
index cccbb63d27c..52b2fb7f3da 100644
--- a/release/scripts/startup/bl_ui/space_userpref.py
+++ b/release/scripts/startup/bl_ui/space_userpref.py
@@ -589,12 +589,6 @@ class USERPREF_PT_system_cycles_devices(SystemPanel, CenterAlignMixIn, Panel):
                 addon.preferences.draw_impl(col, context)
             del addon
 
-        # NOTE: Disabled for until GPU side of OpenSubdiv is brought back.
-        # system = prefs.system
-        # if hasattr(system, "opensubdiv_compute_type"):
-        #     col.label(text="OpenSubdiv compute:")
-        #     col.row().prop(system, "opensubdiv_compute_type", text="")
-
 
 class USERPREF_PT_system_os_settings(SystemPanel, CenterAlignMixIn, Panel):
     bl_label = "Operating System Settings"
@@ -1485,11 +1479,13 @@ class USERPREF_PT_saveload_file_browser(SaveLoadPanel, CenterAlignMixIn, Panel):
         prefs = context.preferences
         paths = prefs.filepaths
 
+        col = layout.column(heading="Show Locations")
+        col.prop(paths, "show_recent_locations", text="Recent")
+        col.prop(paths, "show_system_bookmarks", text="System")
+
         col = layout.column(heading="Defaults")
         col.prop(paths, "use_filter_files")
         col.prop(paths, "show_hidden_files_datablocks")
-        col.prop(paths, "show_recent_locations")
-        col.prop(paths, "show_system_bookmarks")
 
 
 # -----------------------------------------------------------------------------
diff --git a/release/scripts/startup/bl_ui/space_view3d.py b/release/scripts/startup/bl_ui/space_view3d.py
index 92dc4138530..1a30c666bcb 100644
--- a/release/scripts/startup/bl_ui/space_view3d.py
+++ b/release/scripts/startup/bl_ui/space_view3d.py
@@ -603,8 +603,8 @@ class VIEW3D_HT_header(Header):
             show_snap = True
         else:
             if (object_mode not in {
-                    'SCULPT', 'VERTEX_PAINT', 'WEIGHT_PAINT', 'TEXTURE_PAINT',
-                    'PAINT_GPENCIL', 'SCULPT_GPENCIL', 'WEIGHT_GPENCIL', 'VERTEX_GPENCIL'
+                    'SCULPT', 'SCULPT_CURVES', 'VERTEX_PAINT', 'WEIGHT_PAINT', 'TEXTURE_PAINT',
+                    'PAINT_GPENCIL', 'SCULPT_GPENCIL', 'WEIGHT_GPENCIL', 'VERTEX_GPENCIL', 
             }) or has_pose_mode:
                 show_snap = True
             else:
diff --git a/release/scripts/startup/nodeitems_builtins.py b/release/scripts/startup/nodeitems_builtins.py
index e59c98163d7..6f3054100f8 100644
--- a/release/scripts/startup/nodeitems_builtins.py
+++ b/release/scripts/startup/nodeitems_builtins.py
@@ -73,7 +73,7 @@ def curve_node_items(context):
     yield NodeItem("GeometryNodeCurveLength")
     yield NodeItem("GeometryNodeCurveToMesh")
     yield NodeItem("GeometryNodeCurveToPoints")
-    yield NodeItem("GeometryNodeDeformCurvesWithSurface")
+    yield NodeItem("GeometryNodeDeformCurvesOnSurface")
     yield NodeItem("GeometryNodeFillCurve")
     yield NodeItem("GeometryNodeFilletCurve")
     yield NodeItem("GeometryNodeResampleCurve")
diff --git a/source/blender/blendthumb/src/blendthumb_extract.cc b/source/blender/blendthumb/src/blendthumb_extract.cc
index de1f50dfdce..163197c8b67 100644
--- a/source/blender/blendthumb/src/blendthumb_extract.cc
+++ b/source/blender/blendthumb/src/blendthumb_extract.cc
@@ -121,6 +121,9 @@ static eThumbStatus blendthumb_extract_from_file_impl(FileReader *file,
   while (file_read(file, bhead_data, bhead_size)) {
     /* Parse type and size from `BHead`. */
     const int32_t block_size = bytes_to_native_i32(&bhead_data[4], endian_switch);
+    if (UNLIKELY(block_size < 0)) {
+      return BT_INVALID_THUMB;
+    }
 
     /* We're looking for the thumbnail, so skip any other block. */
     switch (*((int32_t *)bhead_data)) {
@@ -134,7 +137,8 @@ static eThumbStatus blendthumb_extract_from_file_impl(FileReader *file,
 
         /* Verify that image dimensions and data size make sense. */
         size_t data_size = block_size - 8;
-        const size_t expected_size = thumb->width * thumb->height * 4;
+        const uint64_t expected_size = static_cast<uint64_t>(thumb->width) *
+                                       static_cast<uint64_t>(thumb->height) * 4;
         if (thumb->width < 0 || thumb->height < 0 || data_size != expected_size) {
           return BT_INVALID_THUMB;
         }
diff --git a/source/blender/blenkernel/BKE_attribute.hh b/source/blender/blenkernel/BKE_attribute.hh
index b92d0d4326b..108993d91c0 100644
--- a/source/blender/blenkernel/BKE_attribute.hh
+++ b/source/blender/blenkernel/BKE_attribute.hh
@@ -351,8 +351,9 @@ class AttributeAccessor {
   /**
    * The data that actually owns the attributes, for example, a pointer to a #Mesh or #PointCloud
    * Most commonly this is a pointer to a #Mesh or #PointCloud.
-   * Under some circumstances this can be null. In that case most methods can't be used. Just e.g.
-   * the #domain_size method works and returns 0 for every domain.
+   * Under some circumstances this can be null. In that case most methods can't be used. Allowed
+   * methods are #domain_size, #for_all and #is_builtin. We could potentially make these methods
+   * accessible without #AttributeAccessor and then #owner_ could always be non-null.
    *
    * \note This class cannot modify the owner's attributes, but the pointer is still non-const, so
    * this class can be a base class for the mutable version.
@@ -509,7 +510,10 @@ class AttributeAccessor {
    */
   bool for_all(const AttributeForeachCallback fn) const
   {
-    return fn_->for_all(owner_, fn);
+    if (owner_ != nullptr) {
+      return fn_->for_all(owner_, fn);
+    }
+    return true;
   }
 
   /**
@@ -662,6 +666,22 @@ class MutableAttributeAccessor : public AttributeAccessor {
   void remove_anonymous();
 };
 
+struct AttributeTransferData {
+  /* Expect that if an attribute exists, it is stored as a contiguous array internally anyway. */
+  GVArraySpan src;
+  AttributeMetaData meta_data;
+  bke::GSpanAttributeWriter dst;
+};
+/**
+ * Retrieve attribute arrays and writers for attributes that should be transferred between
+ * data-blocks of the same type.
+ */
+Vector<AttributeTransferData> retrieve_attributes_for_transfer(
+    const bke::AttributeAccessor &src_attributes,
+    bke::MutableAttributeAccessor &dst_attributes,
+    eAttrDomainMask domain_mask,
+    const Set<std::string> &skip = {});
+
 bool allow_procedural_attribute_access(StringRef attribute_name);
 extern const char *no_procedural_access_message;
 
diff --git a/source/blender/blenkernel/BKE_curves.hh b/source/blender/blenkernel/BKE_curves.hh
index fb97e52f6da..68c90a45031 100644
--- a/source/blender/blenkernel/BKE_curves.hh
+++ b/source/blender/blenkernel/BKE_curves.hh
@@ -385,8 +385,6 @@ class CurvesGeometry : public ::CurvesGeometry {
 
   void calculate_bezier_auto_handles();
 
-  void update_customdata_pointers();
-
   void remove_points(IndexMask points_to_delete);
   void remove_curves(IndexMask curves_to_delete);
 
@@ -735,6 +733,12 @@ Curves *curves_new_nomain(CurvesGeometry curves);
  */
 Curves *curves_new_nomain_single(int points_num, CurveType type);
 
+/**
+ * Copy data from #src to #dst, except the geometry data in #CurvesGeometry. Typically used to
+ * copy high-level parameters when a geometry-altering operation creates a new curves data-block.
+ */
+void curves_copy_parameters(const Curves &src, Curves &dst);
+
 std::array<int, CURVE_TYPES_NUM> calculate_type_counts(const VArray<int8_t> &types);
 
 /* -------------------------------------------------------------------- */
diff --git a/source/blender/blenkernel/BKE_curves_utils.hh b/source/blender/blenkernel/BKE_curves_utils.hh
index f223e173ea9..0fbd33002e1 100644
--- a/source/blender/blenkernel/BKE_curves_utils.hh
+++ b/source/blender/blenkernel/BKE_curves_utils.hh
@@ -56,6 +56,13 @@ void fill_points(const CurvesGeometry &curves,
 }
 
 /**
+ * Copy only the information on the point domain, but not the offsets or any point attributes,
+ * meant for operations that change the number of points but not the number of curves.
+ * \warning The returned curves have invalid offsets!
+ */
+bke::CurvesGeometry copy_only_curve_domain(const bke::CurvesGeometry &src_curves);
+
+/**
  * Copy the size of every curve in #curve_ranges to the corresponding index in #counts.
  */
 void fill_curve_counts(const bke::CurvesGeometry &curves,
diff --git a/source/blender/blenkernel/BKE_fcurve.h b/source/blender/blenkernel/BKE_fcurve.h
index 10d9ce3364d..c5788c07336 100644
--- a/source/blender/blenkernel/BKE_fcurve.h
+++ b/source/blender/blenkernel/BKE_fcurve.h
@@ -463,23 +463,39 @@ bool BKE_fcurve_bezt_subdivide_handles(struct BezTriple *bezt,
                                        struct BezTriple *next,
                                        float *r_pdelta);
 
+/**
+ * Delete a keyframe from an F-curve at a specific index.
+ */
+void BKE_fcurve_delete_key(struct FCurve *fcu, int index);
+
+/**
+ * Delete selected keyframes from an F-curve.
+ */
+bool BKE_fcurve_delete_keys_selected(struct FCurve *fcu);
+
+/**
+ * Delete all keyframes from an F-curve.
+ */
+void BKE_fcurve_delete_keys_all(struct FCurve *fcu);
+
 /* -------- Curve Sanity -------- */
 
 /**
  * This function recalculates the handles of an F-Curve. Acts based on selection with `SELECT`
- * flag. To use a different flag, use #calchandles_fcurve_ex().
+ * flag. To use a different flag, use #BKE_fcurve_handles_recalc_ex().
  *
  * If the BezTriples have been rearranged, sort them first before using this.
  */
-void calchandles_fcurve(struct FCurve *fcu);
+void BKE_fcurve_handles_recalc(struct FCurve *fcu);
 /**
- * Variant of #calchandles_fcurve() that allows calculating based on a different select flag.
+ * Variant of #BKE_fcurve_handles_recalc() that allows calculating based on a different select
+ * flag.
  *
  * \param handle_sel_flag: The flag (bezt.f1/2/3) value to use to determine selection.
  * Usually `SELECT`, but may want to use a different one at times
  * (if caller does not operate on selection).
  */
-void calchandles_fcurve_ex(struct FCurve *fcu, eBezTriple_Flag handle_sel_flag);
+void BKE_fcurve_handles_recalc_ex(struct FCurve *fcu, eBezTriple_Flag handle_sel_flag);
 /**
  * Update handles, making sure the handle-types are valid (e.g. correctly deduced from an "Auto"
  * type), and recalculating their position vectors.
diff --git a/source/blender/blenkernel/BKE_image.h b/source/blender/blenkernel/BKE_image.h
index 6ec1285af0c..4e622a5708f 100644
--- a/source/blender/blenkernel/BKE_image.h
+++ b/source/blender/blenkernel/BKE_image.h
@@ -97,7 +97,7 @@ int BKE_imbuf_write(struct ImBuf *ibuf, const char *name, const struct ImageForm
  */
 int BKE_imbuf_write_as(struct ImBuf *ibuf,
                        const char *name,
-                       struct ImageFormatData *imf,
+                       const struct ImageFormatData *imf,
                        bool save_copy);
 
 /**
diff --git a/source/blender/blenkernel/BKE_image_save.h b/source/blender/blenkernel/BKE_image_save.h
index 673a7dffb82..e17136174eb 100644
--- a/source/blender/blenkernel/BKE_image_save.h
+++ b/source/blender/blenkernel/BKE_image_save.h
@@ -48,14 +48,14 @@ bool BKE_image_save_options_init(ImageSaveOptions *opts,
                                  struct ImageUser *iuser,
                                  const bool guess_path,
                                  const bool save_as_render);
-void BKE_image_save_options_update(struct ImageSaveOptions *opts, struct Image *ima);
+void BKE_image_save_options_update(struct ImageSaveOptions *opts, const struct Image *ima);
 void BKE_image_save_options_free(struct ImageSaveOptions *opts);
 
 bool BKE_image_save(struct ReportList *reports,
                     struct Main *bmain,
                     struct Image *ima,
                     struct ImageUser *iuser,
-                    struct ImageSaveOptions *opts);
+                    const struct ImageSaveOptions *opts);
 
 /* Render saving. */
 
diff --git a/source/blender/blenkernel/BKE_mesh.h b/source/blender/blenkernel/BKE_mesh.h
index 366083fee7f..6c61068b1c2 100644
--- a/source/blender/blenkernel/BKE_mesh.h
+++ b/source/blender/blenkernel/BKE_mesh.h
@@ -85,10 +85,18 @@ struct Mesh *BKE_mesh_from_bmesh_for_eval_nomain(struct BMesh *bm,
  * Add original index (#CD_ORIGINDEX) layers if they don't already exist. This is meant to be used
  * when creating an evaluated mesh from an original edit mode mesh, to allow mapping from the
  * evaluated vertices to the originals.
+ *
+ * The mesh is expected to of a `ME_WRAPPER_TYPE_MDATA` wrapper type. This is asserted.
  */
 void BKE_mesh_ensure_default_orig_index_customdata(struct Mesh *mesh);
 
 /**
+ * Same as #BKE_mesh_ensure_default_orig_index_customdata but does not perform any checks: they
+ * must be done by the caller.
+ */
+void BKE_mesh_ensure_default_orig_index_customdata_no_check(struct Mesh *mesh);
+
+/**
  * Find the index of the loop in 'poly' which references vertex,
  * returns -1 if not found
  */
@@ -986,7 +994,7 @@ void BKE_mesh_strip_loose_edges(struct Mesh *me);
 
 /**
  * If the mesh is from a very old blender version,
- * convert mface->edcode to edge drawflags
+ * convert #MFace.edcode to edge #ME_EDGEDRAW.
  */
 void BKE_mesh_calc_edges_legacy(struct Mesh *me, bool use_old);
 void BKE_mesh_calc_edges_loose(struct Mesh *mesh);
@@ -1002,8 +1010,8 @@ void BKE_mesh_calc_edges(struct Mesh *mesh, bool keep_existing_edges, bool selec
 void BKE_mesh_calc_edges_tessface(struct Mesh *mesh);
 
 /* In DerivedMesh.cc */
-void BKE_mesh_wrapper_deferred_finalize(struct Mesh *me_eval,
-                                        const struct CustomData_MeshMasks *cd_mask_finalize);
+void BKE_mesh_wrapper_deferred_finalize_mdata(struct Mesh *me_eval,
+                                              const struct CustomData_MeshMasks *cd_mask_finalize);
 
 /* **** Depsgraph evaluation **** */
 
diff --git a/source/blender/blenkernel/BKE_mesh_mapping.h b/source/blender/blenkernel/BKE_mesh_mapping.h
index 163acf062e0..c58bcbea242 100644
--- a/source/blender/blenkernel/BKE_mesh_mapping.h
+++ b/source/blender/blenkernel/BKE_mesh_mapping.h
@@ -69,8 +69,6 @@ typedef struct UvElementMap {
   int *islandIndices;
 } UvElementMap;
 
-#define INVALID_ISLAND ((unsigned int)-1)
-
 /* Connectivity data */
 typedef struct MeshElemMap {
   int *indices;
diff --git a/source/blender/blenkernel/BKE_modifier.h b/source/blender/blenkernel/BKE_modifier.h
index 866b0353d07..46d609f9aa3 100644
--- a/source/blender/blenkernel/BKE_modifier.h
+++ b/source/blender/blenkernel/BKE_modifier.h
@@ -446,10 +446,22 @@ bool BKE_modifier_is_enabled(const struct Scene *scene,
  */
 bool BKE_modifier_is_nonlocal_in_liboverride(const struct Object *ob,
                                              const struct ModifierData *md);
+
+/* Set modifier execution error.
+ * The message will be shown in the interface and will be logged as an error to the console. */
 void BKE_modifier_set_error(const struct Object *ob,
                             struct ModifierData *md,
                             const char *format,
                             ...) ATTR_PRINTF_FORMAT(3, 4);
+
+/* Set modifier execution warning, which does not prevent the modifier from being applied but which
+ * might need an attention. The message will only be shown in the interface, but will not appear in
+ * the logs. */
+void BKE_modifier_set_warning(const struct Object *ob,
+                              struct ModifierData *md,
+                              const char *format,
+                              ...) ATTR_PRINTF_FORMAT(3, 4);
+
 bool BKE_modifier_is_preview(struct ModifierData *md);
 
 void BKE_modifiers_foreach_ID_link(struct Object *ob, IDWalkFunc walk, void *userData);
diff --git a/source/blender/blenkernel/BKE_node.h b/source/blender/blenkernel/BKE_node.h
index b7962ade312..ea43fba1a85 100644
--- a/source/blender/blenkernel/BKE_node.h
+++ b/source/blender/blenkernel/BKE_node.h
@@ -314,6 +314,10 @@ typedef struct bNodeType {
 
   /* Execute a geometry node. */
   NodeGeometryExecFunction geometry_node_execute;
+  /**
+   * If true, the geometry nodes evaluator can call the execute function multiple times to improve
+   * performance by specifying required data in one call and using it for calculations in another.
+   */
   bool geometry_node_execute_supports_laziness;
 
   /* Declares which sockets the node has. */
diff --git a/source/blender/blenkernel/BKE_paint.h b/source/blender/blenkernel/BKE_paint.h
index ffe80ff47b6..162459d2005 100644
--- a/source/blender/blenkernel/BKE_paint.h
+++ b/source/blender/blenkernel/BKE_paint.h
@@ -200,6 +200,11 @@ bool BKE_paint_select_vert_test(struct Object *ob);
  * (when we don't care if its face or vert)
  */
 bool BKE_paint_select_elem_test(struct Object *ob);
+/**
+ * Checks if face/vertex hiding is always applied in the current mode.
+ * Returns true in vertex/weight paint.
+ */
+bool BKE_paint_always_hide_test(struct Object *ob);
 
 /* Partial visibility. */
 
diff --git a/source/blender/blenkernel/BKE_pointcloud.h b/source/blender/blenkernel/BKE_pointcloud.h
index 6dbba11a56d..ee90fea6506 100644
--- a/source/blender/blenkernel/BKE_pointcloud.h
+++ b/source/blender/blenkernel/BKE_pointcloud.h
@@ -29,7 +29,6 @@ struct PointCloud *BKE_pointcloud_new_nomain(int totpoint);
 struct BoundBox *BKE_pointcloud_boundbox_get(struct Object *ob);
 bool BKE_pointcloud_minmax(const struct PointCloud *pointcloud, float r_min[3], float r_max[3]);
 
-void BKE_pointcloud_update_customdata_pointers(struct PointCloud *pointcloud);
 bool BKE_pointcloud_customdata_required(const struct PointCloud *pointcloud, const char *name);
 
 /* Dependency Graph */
diff --git a/source/blender/blenkernel/BKE_scene.h b/source/blender/blenkernel/BKE_scene.h
index a6402a1e8a1..61fc883fe7f 100644
--- a/source/blender/blenkernel/BKE_scene.h
+++ b/source/blender/blenkernel/BKE_scene.h
@@ -251,6 +251,10 @@ 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);
 
+void BKE_render_resolution(const struct RenderData *r,
+                           const bool use_crop,
+                           int *r_width,
+                           int *r_height);
 int BKE_render_preview_pixel_size(const struct RenderData *r);
 
 /**********************************/
diff --git a/source/blender/blenkernel/BKE_subdiv_eval.h b/source/blender/blenkernel/BKE_subdiv_eval.h
index cb0f2ac7e32..e4a7f813a8b 100644
--- a/source/blender/blenkernel/BKE_subdiv_eval.h
+++ b/source/blender/blenkernel/BKE_subdiv_eval.h
@@ -20,7 +20,7 @@ struct Subdiv;
 
 typedef enum eSubdivEvaluatorType {
   SUBDIV_EVALUATOR_TYPE_CPU,
-  SUBDIV_EVALUATOR_TYPE_GLSL_COMPUTE,
+  SUBDIV_EVALUATOR_TYPE_GPU,
 } eSubdivEvaluatorType;
 
 /* Returns true if evaluator is ready for use. */
diff --git a/source/blender/blenkernel/BKE_writeffmpeg.h b/source/blender/blenkernel/BKE_writeffmpeg.h
index 3f92d6fa117..736f7548bb4 100644
--- a/source/blender/blenkernel/BKE_writeffmpeg.h
+++ b/source/blender/blenkernel/BKE_writeffmpeg.h
@@ -68,7 +68,7 @@ void BKE_ffmpeg_filepath_get(char *string,
                              const char *suffix);
 
 void BKE_ffmpeg_preset_set(struct RenderData *rd, int preset);
-void BKE_ffmpeg_image_type_verify(struct RenderData *rd, struct ImageFormatData *imf);
+void BKE_ffmpeg_image_type_verify(struct RenderData *rd, const struct ImageFormatData *imf);
 bool BKE_ffmpeg_alpha_channel_is_supported(const struct RenderData *rd);
 
 void *BKE_ffmpeg_context_create(void);
diff --git a/source/blender/blenkernel/intern/DerivedMesh.cc b/source/blender/blenkernel/intern/DerivedMesh.cc
index c2ea01bcadf..a29d8726f21 100644
--- a/source/blender/blenkernel/intern/DerivedMesh.cc
+++ b/source/blender/blenkernel/intern/DerivedMesh.cc
@@ -84,6 +84,8 @@ static ThreadRWMutex loops_cache_lock = PTHREAD_RWLOCK_INITIALIZER;
 static void mesh_init_origspace(Mesh *mesh);
 static void editbmesh_calc_modifier_final_normals(Mesh *mesh_final,
                                                   const CustomData_MeshMasks *final_datamask);
+static void editbmesh_calc_modifier_final_normals_or_defer(
+    Mesh *mesh_final, const CustomData_MeshMasks *final_datamask);
 
 /* -------------------------------------------------------------------- */
 
@@ -663,8 +665,8 @@ static void mesh_calc_finalize(const Mesh *mesh_input, Mesh *mesh_eval)
   mesh_eval->edit_mesh = mesh_input->edit_mesh;
 }
 
-void BKE_mesh_wrapper_deferred_finalize(Mesh *me_eval,
-                                        const CustomData_MeshMasks *cd_mask_finalize)
+void BKE_mesh_wrapper_deferred_finalize_mdata(Mesh *me_eval,
+                                              const CustomData_MeshMasks *cd_mask_finalize)
 {
   if (me_eval->runtime.wrapper_type_finalize & (1 << ME_WRAPPER_TYPE_BMESH)) {
     editbmesh_calc_modifier_final_normals(me_eval, cd_mask_finalize);
@@ -1286,12 +1288,6 @@ bool editbmesh_modifier_is_enabled(const Scene *scene,
 static void editbmesh_calc_modifier_final_normals(Mesh *mesh_final,
                                                   const CustomData_MeshMasks *final_datamask)
 {
-  if (mesh_final->runtime.wrapper_type != ME_WRAPPER_TYPE_MDATA) {
-    /* Generated at draw time. */
-    mesh_final->runtime.wrapper_type_finalize = (1 << mesh_final->runtime.wrapper_type);
-    return;
-  }
-
   const bool calc_loop_normals = ((mesh_final->flag & ME_AUTOSMOOTH) != 0 ||
                                   (final_datamask->lmask & CD_MASK_NORMAL) != 0);
 
@@ -1319,6 +1315,18 @@ static void editbmesh_calc_modifier_final_normals(Mesh *mesh_final,
   }
 }
 
+static void editbmesh_calc_modifier_final_normals_or_defer(
+    Mesh *mesh_final, const CustomData_MeshMasks *final_datamask)
+{
+  if (mesh_final->runtime.wrapper_type != ME_WRAPPER_TYPE_MDATA) {
+    /* Generated at draw time. */
+    mesh_final->runtime.wrapper_type_finalize = (1 << mesh_final->runtime.wrapper_type);
+    return;
+  }
+
+  editbmesh_calc_modifier_final_normals(mesh_final, final_datamask);
+}
+
 static void editbmesh_calc_modifiers(struct Depsgraph *depsgraph,
                                      const Scene *scene,
                                      Object *ob,
@@ -1598,9 +1606,9 @@ static void editbmesh_calc_modifiers(struct Depsgraph *depsgraph,
   }
 
   /* Compute normals. */
-  editbmesh_calc_modifier_final_normals(mesh_final, &final_datamask);
+  editbmesh_calc_modifier_final_normals_or_defer(mesh_final, &final_datamask);
   if (mesh_cage && (mesh_cage != mesh_final)) {
-    editbmesh_calc_modifier_final_normals(mesh_cage, &final_datamask);
+    editbmesh_calc_modifier_final_normals_or_defer(mesh_cage, &final_datamask);
   }
 
   /* Return final mesh. */
diff --git a/source/blender/blenkernel/intern/action_mirror.c b/source/blender/blenkernel/intern/action_mirror.c
index 7ef561c8216..0663538f3bb 100644
--- a/source/blender/blenkernel/intern/action_mirror.c
+++ b/source/blender/blenkernel/intern/action_mirror.c
@@ -363,7 +363,7 @@ static void action_flip_pchan(Object *ob_arm,
 
   /* Recalculate handles. */
   for (int i = 0; i < fcurve_array_len; i++) {
-    calchandles_fcurve_ex(fcurve_array[i], 0);
+    BKE_fcurve_handles_recalc_ex(fcurve_array[i], 0);
   }
 
   MEM_freeN((void *)keyed_frames);
diff --git a/source/blender/blenkernel/intern/attribute_access.cc b/source/blender/blenkernel/intern/attribute_access.cc
index ac1ee19927c..a834b77d65e 100644
--- a/source/blender/blenkernel/intern/attribute_access.cc
+++ b/source/blender/blenkernel/intern/attribute_access.cc
@@ -1011,6 +1011,37 @@ GSpanAttributeWriter MutableAttributeAccessor::lookup_or_add_for_write_only_span
   return {};
 }
 
+Vector<AttributeTransferData> retrieve_attributes_for_transfer(
+    const bke::AttributeAccessor &src_attributes,
+    bke::MutableAttributeAccessor &dst_attributes,
+    const eAttrDomainMask domain_mask,
+    const Set<std::string> &skip)
+{
+  Vector<AttributeTransferData> attributes;
+  src_attributes.for_all(
+      [&](const bke::AttributeIDRef &id, const bke::AttributeMetaData meta_data) {
+        if (!(ATTR_DOMAIN_AS_MASK(meta_data.domain) & domain_mask)) {
+          return true;
+        }
+        if (id.is_named() && skip.contains(id.name())) {
+          return true;
+        }
+        if (!id.should_be_kept()) {
+          return true;
+        }
+
+        GVArray src = src_attributes.lookup(id, meta_data.domain);
+        BLI_assert(src);
+        bke::GSpanAttributeWriter dst = dst_attributes.lookup_or_add_for_write_only_span(
+            id, meta_data.domain, meta_data.data_type);
+        BLI_assert(dst);
+        attributes.append({std::move(src), meta_data, std::move(dst)});
+
+        return true;
+      });
+  return attributes;
+}
+
 }  // namespace blender::bke
 
 /** \} */
diff --git a/source/blender/blenkernel/intern/brush.cc b/source/blender/blenkernel/intern/brush.cc
index ffa63f9792f..99733c8edb3 100644
--- a/source/blender/blenkernel/intern/brush.cc
+++ b/source/blender/blenkernel/intern/brush.cc
@@ -444,7 +444,8 @@ static void brush_defaults(Brush *brush)
 
   const Brush *brush_def = DNA_struct_default_get(Brush);
 
-#define FROM_DEFAULT(member) memcpy(&brush->member, &brush_def->member, sizeof(brush->member))
+#define FROM_DEFAULT(member) \
+  memcpy((void *)&brush->member, (void *)&brush_def->member, sizeof(brush->member))
 #define FROM_DEFAULT_PTR(member) memcpy(brush->member, brush_def->member, sizeof(brush->member))
 
   FROM_DEFAULT(blend);
@@ -586,15 +587,15 @@ bool BKE_brush_delete(Main *bmain, Brush *brush)
   return true;
 }
 
-/* grease pencil cumapping->preset */
-typedef enum eGPCurveMappingPreset {
+/** Local grease pencil curve mapping preset. */
+using eGPCurveMappingPreset = enum eGPCurveMappingPreset {
   GPCURVE_PRESET_PENCIL = 0,
   GPCURVE_PRESET_INK = 1,
   GPCURVE_PRESET_INKNOISE = 2,
   GPCURVE_PRESET_MARKER = 3,
   GPCURVE_PRESET_CHISEL_SENSIVITY = 4,
   GPCURVE_PRESET_CHISEL_STRENGTH = 5,
-} eGPCurveMappingPreset;
+};
 
 static void brush_gpencil_curvemap_reset(CurveMap *cuma, int tot, int preset)
 {
diff --git a/source/blender/blenkernel/intern/bvhutils.cc b/source/blender/blenkernel/intern/bvhutils.cc
index 35c2039634a..03dd5c89b70 100644
--- a/source/blender/blenkernel/intern/bvhutils.cc
+++ b/source/blender/blenkernel/intern/bvhutils.cc
@@ -19,6 +19,7 @@
 #include "BLI_threads.h"
 #include "BLI_utildefines.h"
 
+#include "BKE_attribute.hh"
 #include "BKE_bvhutils.h"
 #include "BKE_editmesh.h"
 #include "BKE_mesh.h"
@@ -1430,13 +1431,17 @@ BVHTree *BKE_bvhtree_from_pointcloud_get(BVHTreeFromPointCloud *data,
     return nullptr;
   }
 
-  for (int i = 0; i < pointcloud->totpoint; i++) {
-    BLI_bvhtree_insert(tree, i, pointcloud->co[i], 1);
+  blender::bke::AttributeAccessor attributes = blender::bke::pointcloud_attributes(*pointcloud);
+  blender::VArraySpan<blender::float3> positions = attributes.lookup_or_default<blender::float3>(
+      "position", ATTR_DOMAIN_POINT, blender::float3(0));
+
+  for (const int i : positions.index_range()) {
+    BLI_bvhtree_insert(tree, i, positions[i], 1);
   }
   BLI_assert(BLI_bvhtree_get_len(tree) == pointcloud->totpoint);
   bvhtree_balance(tree, false);
 
-  data->coords = pointcloud->co;
+  data->coords = (const float(*)[3])positions.data();
   data->tree = tree;
   data->nearest_callback = nullptr;
 
diff --git a/source/blender/blenkernel/intern/camera.c b/source/blender/blenkernel/intern/camera.c
index fbe03ac365c..9aea3b2768f 100644
--- a/source/blender/blenkernel/intern/camera.c
+++ b/source/blender/blenkernel/intern/camera.c
@@ -25,6 +25,7 @@
 #include "BLI_string.h"
 #include "BLI_utildefines.h"
 
+#include "BKE_action.h"
 #include "BKE_anim_data.h"
 #include "BKE_camera.h"
 #include "BKE_idtype.h"
@@ -221,7 +222,16 @@ float BKE_camera_object_dof_distance(const Object *ob)
   if (cam->dof.focus_object) {
     float view_dir[3], dof_dir[3];
     normalize_v3_v3(view_dir, ob->obmat[2]);
-    sub_v3_v3v3(dof_dir, ob->obmat[3], cam->dof.focus_object->obmat[3]);
+    bPoseChannel *pchan = BKE_pose_channel_find_name(cam->dof.focus_object->pose,
+                                                     cam->dof.focus_subtarget);
+    if (pchan) {
+      float posemat[4][4];
+      mul_m4_m4m4(posemat, cam->dof.focus_object->obmat, pchan->pose_mat);
+      sub_v3_v3v3(dof_dir, ob->obmat[3], posemat[3]);
+    }
+    else {
+      sub_v3_v3v3(dof_dir, ob->obmat[3], cam->dof.focus_object->obmat[3]);
+    }
     return fabsf(dot_v3v3(view_dir, dof_dir));
   }
   return cam->dof.focus_distance;
@@ -559,6 +569,11 @@ void BKE_camera_view_frame(const Scene *scene, const Camera *camera, float r_vec
 
 #define CAMERA_VIEWFRAME_NUM_PLANES 4
 
+#define Y_MIN 0
+#define Y_MAX 1
+#define Z_MIN 2
+#define Z_MAX 3
+
 typedef struct CameraViewFrameData {
   float plane_tx[CAMERA_VIEWFRAME_NUM_PLANES][4]; /* 4 planes normalized */
   float dist_vals[CAMERA_VIEWFRAME_NUM_PLANES];   /* distance (signed) */
@@ -622,15 +637,13 @@ static void camera_frame_fit_data_init(const Scene *scene,
   invert_m4(camera_rotmat_transposed_inversed);
 
   /* Extract frustum planes from projection matrix. */
-  planes_from_projmat(
-      params->winmat,
-      /*   left              right                 top              bottom        near  far */
-      data->plane_tx[2],
-      data->plane_tx[0],
-      data->plane_tx[3],
-      data->plane_tx[1],
-      NULL,
-      NULL);
+  planes_from_projmat(params->winmat,
+                      data->plane_tx[Y_MIN],
+                      data->plane_tx[Y_MAX],
+                      data->plane_tx[Z_MIN],
+                      data->plane_tx[Z_MAX],
+                      NULL,
+                      NULL);
 
   /* Rotate planes and get normals from them */
   for (uint i = 0; i < CAMERA_VIEWFRAME_NUM_PLANES; i++) {
@@ -670,21 +683,21 @@ static bool camera_frame_fit_calc_from_data(CameraParams *params,
     const float *cam_axis_y = data->camera_rotmat[1];
     const float *cam_axis_z = data->camera_rotmat[2];
     const float *dists = data->dist_vals;
-    float scale_diff;
+    const float dist_span_y = dists[Y_MIN] + dists[Y_MAX];
+    const float dist_span_z = dists[Z_MIN] + dists[Z_MAX];
+    const float dist_mid_y = (dists[Y_MIN] - dists[Y_MAX]) * 0.5f;
+    const float dist_mid_z = (dists[Z_MIN] - dists[Z_MAX]) * 0.5f;
+    const float scale_diff = (dist_span_z < dist_span_y) ?
+                                 (dist_span_z * (BLI_rctf_size_x(&params->viewplane) /
+                                                 BLI_rctf_size_y(&params->viewplane))) :
+                                 (dist_span_y * (BLI_rctf_size_y(&params->viewplane) /
+                                                 BLI_rctf_size_x(&params->viewplane)));
 
-    if ((dists[0] + dists[2]) > (dists[1] + dists[3])) {
-      scale_diff = (dists[1] + dists[3]) *
-                   (BLI_rctf_size_x(&params->viewplane) / BLI_rctf_size_y(&params->viewplane));
-    }
-    else {
-      scale_diff = (dists[0] + dists[2]) *
-                   (BLI_rctf_size_y(&params->viewplane) / BLI_rctf_size_x(&params->viewplane));
-    }
     *r_scale = params->ortho_scale - scale_diff;
 
     zero_v3(r_co);
-    madd_v3_v3fl(r_co, cam_axis_x, (dists[2] - dists[0]) * 0.5f + params->shiftx * scale_diff);
-    madd_v3_v3fl(r_co, cam_axis_y, (dists[1] - dists[3]) * 0.5f + params->shifty * scale_diff);
+    madd_v3_v3fl(r_co, cam_axis_x, dist_mid_y + (params->shiftx * scale_diff));
+    madd_v3_v3fl(r_co, cam_axis_y, dist_mid_z + (params->shifty * scale_diff));
     madd_v3_v3fl(r_co, cam_axis_z, -(data->z_range[0] - 1.0f - params->clip_start));
   }
   else {
@@ -700,36 +713,37 @@ static bool camera_frame_fit_calc_from_data(CameraParams *params,
       plane_from_point_normal_v3(plane_tx[i], co, data->plane_tx[i]);
     }
 
-    if ((!isect_plane_plane_v3(plane_tx[0], plane_tx[2], plane_isect_1, plane_isect_1_no)) ||
-        (!isect_plane_plane_v3(plane_tx[1], plane_tx[3], plane_isect_2, plane_isect_2_no))) {
+    if ((!isect_plane_plane_v3(
+            plane_tx[Y_MIN], plane_tx[Y_MAX], plane_isect_1, plane_isect_1_no)) ||
+        (!isect_plane_plane_v3(
+            plane_tx[Z_MIN], plane_tx[Z_MAX], plane_isect_2, plane_isect_2_no))) {
       return false;
     }
 
     add_v3_v3v3(plane_isect_1_other, plane_isect_1, plane_isect_1_no);
     add_v3_v3v3(plane_isect_2_other, plane_isect_2, plane_isect_2_no);
 
-    if (isect_line_line_v3(plane_isect_1,
-                           plane_isect_1_other,
-                           plane_isect_2,
-                           plane_isect_2_other,
-                           plane_isect_pt_1,
-                           plane_isect_pt_2) == 0) {
+    if (!isect_line_line_v3(plane_isect_1,
+                            plane_isect_1_other,
+                            plane_isect_2,
+                            plane_isect_2_other,
+                            plane_isect_pt_1,
+                            plane_isect_pt_2)) {
       return false;
     }
 
     float cam_plane_no[3];
     float plane_isect_delta[3];
-    float plane_isect_delta_len;
 
-    float shift_fac = BKE_camera_sensor_size(
-                          params->sensor_fit, params->sensor_x, params->sensor_y) /
-                      params->lens;
+    const float shift_fac = BKE_camera_sensor_size(
+                                params->sensor_fit, params->sensor_x, params->sensor_y) /
+                            params->lens;
 
     /* we want (0, 0, -1) transformed by camera_rotmat, this is a quicker shortcut. */
     negate_v3_v3(cam_plane_no, data->camera_rotmat[2]);
 
     sub_v3_v3v3(plane_isect_delta, plane_isect_pt_2, plane_isect_pt_1);
-    plane_isect_delta_len = len_v3(plane_isect_delta);
+    const float plane_isect_delta_len = len_v3(plane_isect_delta);
 
     if (dot_v3v3(plane_isect_delta, cam_plane_no) > 0.0f) {
       copy_v3_v3(r_co, plane_isect_pt_1);
@@ -755,6 +769,11 @@ static bool camera_frame_fit_calc_from_data(CameraParams *params,
   return true;
 }
 
+#undef Y_MIN
+#undef Y_MAX
+#undef Z_MIN
+#undef Z_MAX
+
 bool BKE_camera_view_frame_fit_to_scene(Depsgraph *depsgraph,
                                         const Scene *scene,
                                         Object *camera_ob,
diff --git a/source/blender/blenkernel/intern/curves.cc b/source/blender/blenkernel/intern/curves.cc
index 78791b55b4d..5684a2e5b07 100644
--- a/source/blender/blenkernel/intern/curves.cc
+++ b/source/blender/blenkernel/intern/curves.cc
@@ -53,8 +53,6 @@ using blender::Vector;
 
 static const char *ATTR_POSITION = "position";
 
-static void update_custom_data_pointers(Curves &curves);
-
 static void curves_init_data(ID *id)
 {
   Curves *curves = (Curves *)id;
@@ -97,8 +95,6 @@ static void curves_copy_data(Main *UNUSED(bmain), ID *id_dst, const ID *id_src,
 
   dst.runtime->type_counts = src.runtime->type_counts;
 
-  dst.update_customdata_pointers();
-
   curves_dst->batch_cache = nullptr;
 }
 
@@ -170,7 +166,6 @@ static void curves_blend_read_data(BlendDataReader *reader, ID *id)
   /* Geometry */
   CustomData_blend_read(reader, &curves->geometry.point_data, curves->geometry.point_num);
   CustomData_blend_read(reader, &curves->geometry.curve_data, curves->geometry.curve_num);
-  update_custom_data_pointers(*curves);
 
   BLO_read_int32_array(reader, curves->geometry.curve_num + 1, &curves->geometry.curve_offsets);
 
@@ -233,11 +228,6 @@ IDTypeInfo IDType_ID_CV = {
     /*lib_override_apply_post */ nullptr,
 };
 
-static void update_custom_data_pointers(Curves &curves)
-{
-  blender::bke::CurvesGeometry::wrap(curves.geometry).update_customdata_pointers();
-}
-
 void *BKE_curves_add(Main *bmain, const char *name)
 {
   Curves *curves = static_cast<Curves *>(BKE_id_new(bmain, ID_CV, name));
@@ -388,6 +378,23 @@ Curves *curves_new_nomain(CurvesGeometry curves)
   return curves_id;
 }
 
+void curves_copy_parameters(const Curves &src, Curves &dst)
+{
+  dst.flag = src.flag;
+  dst.attributes_active_index = src.attributes_active_index;
+  MEM_SAFE_FREE(dst.mat);
+  dst.mat = static_cast<Material **>(MEM_malloc_arrayN(src.totcol, sizeof(Material *), __func__));
+  dst.totcol = src.totcol;
+  MutableSpan(dst.mat, dst.totcol).copy_from(Span(src.mat, src.totcol));
+  dst.symmetry = src.symmetry;
+  dst.selection_domain = src.selection_domain;
+  dst.surface = src.surface;
+  MEM_SAFE_FREE(dst.surface_uv_map);
+  if (src.surface_uv_map != nullptr) {
+    dst.surface_uv_map = BLI_strdup(src.surface_uv_map);
+  }
+}
+
 CurvesSurfaceTransforms::CurvesSurfaceTransforms(const Object &curves_ob, const Object *surface_ob)
 {
   this->curves_to_world = curves_ob.obmat;
diff --git a/source/blender/blenkernel/intern/curves_geometry.cc b/source/blender/blenkernel/intern/curves_geometry.cc
index 8d955a46275..7fc660cfbfc 100644
--- a/source/blender/blenkernel/intern/curves_geometry.cc
+++ b/source/blender/blenkernel/intern/curves_geometry.cc
@@ -68,8 +68,6 @@ CurvesGeometry::CurvesGeometry(const int point_num, const int curve_num)
 #endif
   this->offsets_for_write().first() = 0;
 
-  this->update_customdata_pointers();
-
   this->runtime = MEM_new<CurvesGeometryRuntime>(__func__);
   /* Fill the type counts with the default so they're in a valid state. */
   this->runtime->type_counts[CURVE_TYPE_CATMULL_ROM] = curve_num;
@@ -95,8 +93,6 @@ static void copy_curves_geometry(CurvesGeometry &dst, const CurvesGeometry &src)
 
   /* Though type counts are a cache, they must be copied because they are calculated eagerly. */
   dst.runtime->type_counts = src.runtime->type_counts;
-
-  dst.update_customdata_pointers();
 }
 
 CurvesGeometry::CurvesGeometry(const CurvesGeometry &other)
@@ -130,9 +126,6 @@ static void move_curves_geometry(CurvesGeometry &dst, CurvesGeometry &src)
   MEM_SAFE_FREE(src.curve_offsets);
 
   std::swap(dst.runtime, src.runtime);
-
-  src.update_customdata_pointers();
-  dst.update_customdata_pointers();
 }
 
 CurvesGeometry::CurvesGeometry(CurvesGeometry &&other)
@@ -306,13 +299,11 @@ void CurvesGeometry::update_curve_types()
 
 Span<float3> CurvesGeometry::positions() const
 {
-  return {(const float3 *)this->position, this->point_num};
+  return get_span_attribute<float3>(*this, ATTR_DOMAIN_POINT, ATTR_POSITION);
 }
 MutableSpan<float3> CurvesGeometry::positions_for_write()
 {
-  this->position = (float(*)[3])CustomData_duplicate_referenced_layer_named(
-      &this->point_data, CD_PROP_FLOAT3, ATTR_POSITION.c_str(), this->point_num);
-  return {(float3 *)this->position, this->point_num};
+  return get_mutable_attribute<float3>(*this, ATTR_DOMAIN_POINT, ATTR_POSITION);
 }
 
 Span<int> CurvesGeometry::offsets() const
@@ -961,7 +952,6 @@ void CurvesGeometry::resize(const int points_num, const int curves_num)
     this->curve_offsets = (int *)MEM_reallocN(this->curve_offsets, sizeof(int) * (curves_num + 1));
   }
   this->tag_topology_changed();
-  this->update_customdata_pointers();
 }
 
 void CurvesGeometry::tag_positions_changed()
@@ -1060,10 +1050,11 @@ void CurvesGeometry::transform(const float4x4 &matrix)
 
 static std::optional<bounds::MinMaxResult<float3>> curves_bounds(const CurvesGeometry &curves)
 {
-  Span<float3> positions = curves.positions();
-  if (curves.radius) {
-    Span<float> radii{curves.radius, curves.points_num()};
-    return bounds::min_max_with_radii(positions, radii);
+  const Span<float3> positions = curves.positions();
+  const VArray<float> radii = curves.attributes().lookup_or_default<float>(
+      ATTR_RADIUS, ATTR_DOMAIN_POINT, 0.0f);
+  if (!(radii.is_single() && radii.get_internal_single() == 0.0f)) {
+    return bounds::min_max_with_radii(positions, radii.get_internal_span());
   }
   return bounds::min_max(positions);
 }
@@ -1079,16 +1070,6 @@ bool CurvesGeometry::bounds_min_max(float3 &min, float3 &max) const
   return true;
 }
 
-void CurvesGeometry::update_customdata_pointers()
-{
-  this->position = (float(*)[3])CustomData_get_layer_named(
-      &this->point_data, CD_PROP_FLOAT3, ATTR_POSITION.c_str());
-  this->radius = (float *)CustomData_get_layer_named(
-      &this->point_data, CD_PROP_FLOAT, ATTR_RADIUS.c_str());
-  this->curve_type = (int8_t *)CustomData_get_layer_named(
-      &this->point_data, CD_PROP_INT8, ATTR_CURVE_TYPE.c_str());
-}
-
 static void *ensure_customdata_layer(CustomData &custom_data,
                                      const StringRefNull name,
                                      const eCustomDataType data_type,
@@ -1497,7 +1478,6 @@ void CurvesGeometry::remove_attributes_based_on_types()
   if (!this->has_curve_with_type({CURVE_TYPE_BEZIER, CURVE_TYPE_CATMULL_ROM, CURVE_TYPE_NURBS})) {
     CustomData_free_layer_named(&this->curve_data, ATTR_RESOLUTION.c_str(), curves_num);
   }
-  this->update_customdata_pointers();
 }
 
 /** \} */
diff --git a/source/blender/blenkernel/intern/curves_utils.cc b/source/blender/blenkernel/intern/curves_utils.cc
index f7db60ee588..d98832e796c 100644
--- a/source/blender/blenkernel/intern/curves_utils.cc
+++ b/source/blender/blenkernel/intern/curves_utils.cc
@@ -84,6 +84,18 @@ void fill_points(const CurvesGeometry &curves,
   });
 }
 
+bke::CurvesGeometry copy_only_curve_domain(const bke::CurvesGeometry &src_curves)
+{
+  bke::CurvesGeometry dst_curves(0, src_curves.curves_num());
+  CustomData_copy(&src_curves.curve_data,
+                  &dst_curves.curve_data,
+                  CD_MASK_ALL,
+                  CD_DUPLICATE,
+                  src_curves.curves_num());
+  dst_curves.runtime->type_counts = src_curves.runtime->type_counts;
+  return dst_curves;
+}
+
 IndexMask indices_for_type(const VArray<int8_t> &types,
                            const std::array<int, CURVE_TYPES_NUM> &type_counts,
                            const CurveType type,
diff --git a/source/blender/blenkernel/intern/fcurve.c b/source/blender/blenkernel/intern/fcurve.c
index 0203620df84..972ff377519 100644
--- a/source/blender/blenkernel/intern/fcurve.c
+++ b/source/blender/blenkernel/intern/fcurve.c
@@ -1146,7 +1146,7 @@ void fcurve_samples_to_keyframes(FCurve *fcu, const int start, const int end)
   MEM_SAFE_FREE(fcu->fpt);
 
   /* Not strictly needed since we use linear interpolation, but better be consistent here. */
-  calchandles_fcurve(fcu);
+  BKE_fcurve_handles_recalc(fcu);
 }
 
 /* ***************************** F-Curve Sanity ********************************* */
@@ -1216,7 +1216,7 @@ static BezTriple *cycle_offset_triple(
   return out;
 }
 
-void calchandles_fcurve_ex(FCurve *fcu, eBezTriple_Flag handle_sel_flag)
+void BKE_fcurve_handles_recalc_ex(FCurve *fcu, eBezTriple_Flag handle_sel_flag)
 {
   BezTriple *bezt, *prev, *next;
   int a = fcu->totvert;
@@ -1299,9 +1299,9 @@ void calchandles_fcurve_ex(FCurve *fcu, eBezTriple_Flag handle_sel_flag)
   }
 }
 
-void calchandles_fcurve(FCurve *fcu)
+void BKE_fcurve_handles_recalc(FCurve *fcu)
 {
-  calchandles_fcurve_ex(fcu, SELECT);
+  BKE_fcurve_handles_recalc_ex(fcu, SELECT);
 }
 
 void testhandles_fcurve(FCurve *fcu, eBezTriple_Flag sel_flag, const bool use_handle)
@@ -1320,7 +1320,7 @@ void testhandles_fcurve(FCurve *fcu, eBezTriple_Flag sel_flag, const bool use_ha
   }
 
   /* Recalculate handles. */
-  calchandles_fcurve_ex(fcu, sel_flag);
+  BKE_fcurve_handles_recalc_ex(fcu, sel_flag);
 }
 
 void sort_time_fcurve(FCurve *fcu)
@@ -1590,6 +1590,12 @@ static void berekeny(float f1, float f2, float f3, float f4, float *o, int b)
   }
 }
 
+static void fcurve_bezt_free(FCurve *fcu)
+{
+  MEM_SAFE_FREE(fcu->bezt);
+  fcu->totvert = 0;
+}
+
 bool BKE_fcurve_bezt_subdivide_handles(struct BezTriple *bezt,
                                        struct BezTriple *prev,
                                        struct BezTriple *next,
@@ -1651,6 +1657,69 @@ bool BKE_fcurve_bezt_subdivide_handles(struct BezTriple *bezt,
   return true;
 }
 
+void BKE_fcurve_delete_key(FCurve *fcu, int index)
+{
+  /* sanity check */
+  if (fcu == NULL) {
+    return;
+  }
+
+  /* verify the index:
+   * 1) cannot be greater than the number of available keyframes
+   * 2) negative indices are for specifying a value from the end of the array
+   */
+  if (abs(index) >= fcu->totvert) {
+    return;
+  }
+  if (index < 0) {
+    index += fcu->totvert;
+  }
+
+  /* Delete this keyframe */
+  memmove(
+      &fcu->bezt[index], &fcu->bezt[index + 1], sizeof(BezTriple) * (fcu->totvert - index - 1));
+  fcu->totvert--;
+
+  /* Free the array of BezTriples if there are not keyframes */
+  if (fcu->totvert == 0) {
+    fcurve_bezt_free(fcu);
+  }
+}
+
+bool BKE_fcurve_delete_keys_selected(FCurve *fcu)
+{
+  bool changed = false;
+
+  if (fcu->bezt == NULL) { /* ignore baked curves */
+    return false;
+  }
+
+  /* Delete selected BezTriples */
+  for (int i = 0; i < fcu->totvert; i++) {
+    if (fcu->bezt[i].f2 & SELECT) {
+      if (i == fcu->active_keyframe_index) {
+        BKE_fcurve_active_keyframe_set(fcu, NULL);
+      }
+      memmove(&fcu->bezt[i], &fcu->bezt[i + 1], sizeof(BezTriple) * (fcu->totvert - i - 1));
+      fcu->totvert--;
+      i--;
+      changed = true;
+    }
+  }
+
+  /* Free the array of BezTriples if there are not keyframes */
+  if (fcu->totvert == 0) {
+    fcurve_bezt_free(fcu);
+  }
+
+  return changed;
+}
+
+void BKE_fcurve_delete_keys_all(FCurve *fcu)
+{
+  fcurve_bezt_free(fcu);
+}
+
 /** \} */
 
 /* -------------------------------------------------------------------- */
diff --git a/source/blender/blenkernel/intern/fmodifier.c b/source/blender/blenkernel/intern/fmodifier.c
index 1bb7c49d616..e4c7572b9e4 100644
--- a/source/blender/blenkernel/intern/fmodifier.c
+++ b/source/blender/blenkernel/intern/fmodifier.c
@@ -1127,7 +1127,7 @@ FModifier *add_fmodifier(ListBase *modifiers, int type, FCurve *owner_fcu)
 
   /* update the fcurve if the Cycles modifier is added */
   if ((owner_fcu) && (type == FMODIFIER_TYPE_CYCLES)) {
-    calchandles_fcurve(owner_fcu);
+    BKE_fcurve_handles_recalc(owner_fcu);
   }
 
   /* return modifier for further editing */
@@ -1215,7 +1215,7 @@ bool remove_fmodifier(ListBase *modifiers, FModifier *fcm)
 
     /* update the fcurve if the Cycles modifier is removed */
     if (update_fcu) {
-      calchandles_fcurve(update_fcu);
+      BKE_fcurve_handles_recalc(update_fcu);
     }
 
     return true;
diff --git a/source/blender/blenkernel/intern/geometry_component_curve.cc b/source/blender/blenkernel/intern/geometry_component_curve.cc
index 0d899ec7b06..22f105af0f1 100644
--- a/source/blender/blenkernel/intern/geometry_component_curve.cc
+++ b/source/blender/blenkernel/intern/geometry_component_curve.cc
@@ -1452,7 +1452,8 @@ std::optional<blender::bke::AttributeAccessor> CurveComponentLegacy::attributes(
 
 std::optional<blender::bke::MutableAttributeAccessor> CurveComponentLegacy::attributes_for_write()
 {
-  return blender::bke::MutableAttributeAccessor(curve_,
+  CurveEval *curve = this->get_for_write();
+  return blender::bke::MutableAttributeAccessor(curve,
                                                 blender::bke::get_curve_accessor_functions_ref());
 }
 
diff --git a/source/blender/blenkernel/intern/geometry_component_curves.cc b/source/blender/blenkernel/intern/geometry_component_curves.cc
index 34c17bedc2c..2714c78e381 100644
--- a/source/blender/blenkernel/intern/geometry_component_curves.cc
+++ b/source/blender/blenkernel/intern/geometry_component_curves.cc
@@ -358,10 +358,7 @@ static ComponentAttributeProviders create_attribute_providers_for_curve()
         const CurvesGeometry &curves = *static_cast<const CurvesGeometry *>(owner);
         return curves.curves_num();
       },
-      [](void *owner) {
-        CurvesGeometry &curves = *static_cast<CurvesGeometry *>(owner);
-        curves.update_customdata_pointers();
-      }};
+      [](void * /*owner*/) {}};
   static CustomDataAccessInfo point_access = {
       [](void *owner) -> CustomData * {
         CurvesGeometry &curves = *static_cast<CurvesGeometry *>(owner);
@@ -375,10 +372,7 @@ static ComponentAttributeProviders create_attribute_providers_for_curve()
         const CurvesGeometry &curves = *static_cast<const CurvesGeometry *>(owner);
         return curves.points_num();
       },
-      [](void *owner) {
-        CurvesGeometry &curves = *static_cast<CurvesGeometry *>(owner);
-        curves.update_customdata_pointers();
-      }};
+      [](void * /*owner*/) {}};
 
   static BuiltinCustomDataLayerProvider position("position",
                                                  ATTR_DOMAIN_POINT,
@@ -644,6 +638,7 @@ std::optional<blender::bke::AttributeAccessor> CurveComponent::attributes() cons
 
 std::optional<blender::bke::MutableAttributeAccessor> CurveComponent::attributes_for_write()
 {
-  return blender::bke::MutableAttributeAccessor(curves_ ? &curves_->geometry : nullptr,
+  Curves *curves = this->get_for_write();
+  return blender::bke::MutableAttributeAccessor(curves ? &curves->geometry : nullptr,
                                                 blender::bke::get_curves_accessor_functions_ref());
 }
diff --git a/source/blender/blenkernel/intern/geometry_component_mesh.cc b/source/blender/blenkernel/intern/geometry_component_mesh.cc
index cb36b9b19f7..436868ba375 100644
--- a/source/blender/blenkernel/intern/geometry_component_mesh.cc
+++ b/source/blender/blenkernel/intern/geometry_component_mesh.cc
@@ -298,12 +298,14 @@ static void adapt_mesh_domain_corner_to_edge_impl(const Mesh &mesh,
     const MPoly &poly = mesh.mpoly[poly_index];
 
     /* For every edge, mix values from the two adjacent corners (the current and next corner). */
-    for (const int loop_index : IndexRange(poly.loopstart, poly.totloop)) {
-      const int loop_index_next = (loop_index + 1) % poly.totloop;
-      const MLoop &loop = mesh.mloop[loop_index];
+    for (const int i : IndexRange(poly.totloop)) {
+      const int next_i = (i + 1) % poly.totloop;
+      const int loop_i = poly.loopstart + i;
+      const int next_loop_i = poly.loopstart + next_i;
+      const MLoop &loop = mesh.mloop[loop_i];
       const int edge_index = loop.e;
-      mixer.mix_in(edge_index, old_values[loop_index]);
-      mixer.mix_in(edge_index, old_values[loop_index_next]);
+      mixer.mix_in(edge_index, old_values[loop_i]);
+      mixer.mix_in(edge_index, old_values[next_loop_i]);
     }
   }
 
@@ -325,13 +327,16 @@ void adapt_mesh_domain_corner_to_edge_impl(const Mesh &mesh,
   for (const int poly_index : IndexRange(mesh.totpoly)) {
     const MPoly &poly = mesh.mpoly[poly_index];
 
-    for (const int loop_index : IndexRange(poly.loopstart, poly.totloop)) {
-      const int loop_index_next = (loop_index == poly.totloop) ? poly.loopstart : (loop_index + 1);
-      const MLoop &loop = mesh.mloop[loop_index];
+    for (const int i : IndexRange(poly.totloop)) {
+      const int next_i = (i + 1) % poly.totloop;
+      const int loop_i = poly.loopstart + i;
+      const int next_loop_i = poly.loopstart + next_i;
+      const MLoop &loop = mesh.mloop[loop_i];
       const int edge_index = loop.e;
+
       loose_edges[edge_index] = false;
 
-      if (!old_values[loop_index] || !old_values[loop_index_next]) {
+      if (!old_values[loop_i] || !old_values[next_loop_i]) {
         r_values[edge_index] = false;
       }
     }
@@ -1324,7 +1329,8 @@ std::optional<blender::bke::AttributeAccessor> MeshComponent::attributes() const
 
 std::optional<blender::bke::MutableAttributeAccessor> MeshComponent::attributes_for_write()
 {
-  return blender::bke::MutableAttributeAccessor(mesh_,
+  Mesh *mesh = this->get_for_write();
+  return blender::bke::MutableAttributeAccessor(mesh,
                                                 blender::bke::get_mesh_accessor_functions_ref());
 }
 
diff --git a/source/blender/blenkernel/intern/geometry_component_pointcloud.cc b/source/blender/blenkernel/intern/geometry_component_pointcloud.cc
index b439a9ba7f8..4953da8a5ee 100644
--- a/source/blender/blenkernel/intern/geometry_component_pointcloud.cc
+++ b/source/blender/blenkernel/intern/geometry_component_pointcloud.cc
@@ -111,10 +111,7 @@ namespace blender::bke {
  */
 static ComponentAttributeProviders create_attribute_providers_for_point_cloud()
 {
-  static auto update_custom_data_pointers = [](void *owner) {
-    PointCloud *pointcloud = static_cast<PointCloud *>(owner);
-    BKE_pointcloud_update_customdata_pointers(pointcloud);
-  };
+  static auto update_custom_data_pointers = [](void * /*owner*/) {};
   static CustomDataAccessInfo point_access = {
       [](void *owner) -> CustomData * {
         PointCloud *pointcloud = static_cast<PointCloud *>(owner);
@@ -226,8 +223,9 @@ std::optional<blender::bke::AttributeAccessor> PointCloudComponent::attributes()
 
 std::optional<blender::bke::MutableAttributeAccessor> PointCloudComponent::attributes_for_write()
 {
+  PointCloud *pointcloud = this->get_for_write();
   return blender::bke::MutableAttributeAccessor(
-      pointcloud_, blender::bke::get_pointcloud_accessor_functions_ref());
+      pointcloud, blender::bke::get_pointcloud_accessor_functions_ref());
 }
 
 /** \} */
diff --git a/source/blender/blenkernel/intern/idtype.c b/source/blender/blenkernel/intern/idtype.c
index e55143d6852..923582dff4c 100644
--- a/source/blender/blenkernel/intern/idtype.c
+++ b/source/blender/blenkernel/intern/idtype.c
@@ -209,7 +209,11 @@ uint64_t BKE_idtype_idcode_to_idfilter(const short idcode)
   case ID_##_id: \
     return FILTER_ID_##_id
 
-  switch (idcode) {
+#define CASE_IDFILTER_NONE(_id) \
+  case ID_##_id: \
+    return 0
+
+  switch ((ID_Type)idcode) {
     CASE_IDFILTER(AC);
     CASE_IDFILTER(AR);
     CASE_IDFILTER(BR);
@@ -220,7 +224,11 @@ uint64_t BKE_idtype_idcode_to_idfilter(const short idcode)
     CASE_IDFILTER(GR);
     CASE_IDFILTER(CV);
     CASE_IDFILTER(IM);
+    CASE_IDFILTER_NONE(IP);
+    CASE_IDFILTER(KE);
     CASE_IDFILTER(LA);
+    CASE_IDFILTER(LI);
+    CASE_IDFILTER(LP);
     CASE_IDFILTER(LS);
     CASE_IDFILTER(LT);
     CASE_IDFILTER(MA);
@@ -234,22 +242,25 @@ uint64_t BKE_idtype_idcode_to_idfilter(const short idcode)
     CASE_IDFILTER(PAL);
     CASE_IDFILTER(PC);
     CASE_IDFILTER(PT);
-    CASE_IDFILTER(LP);
     CASE_IDFILTER(SCE);
+    CASE_IDFILTER(SCR);
     CASE_IDFILTER(SIM);
-    CASE_IDFILTER(SPK);
     CASE_IDFILTER(SO);
+    CASE_IDFILTER(SPK);
     CASE_IDFILTER(TE);
     CASE_IDFILTER(TXT);
     CASE_IDFILTER(VF);
     CASE_IDFILTER(VO);
+    CASE_IDFILTER(WM);
     CASE_IDFILTER(WO);
     CASE_IDFILTER(WS);
-    default:
-      return 0;
   }
 
+  BLI_assert_unreachable();
+  return 0;
+
 #undef CASE_IDFILTER
+#undef CASE_IDFILTER_NONE
 }
 
 short BKE_idtype_idcode_from_idfilter(const uint64_t idfilter)
@@ -258,6 +269,8 @@ short BKE_idtype_idcode_from_idfilter(const uint64_t idfilter)
   case FILTER_ID_##_id: \
     return ID_##_id
 
+#define CASE_IDFILTER_NONE(_id) (void)0
+
   switch (idfilter) {
     CASE_IDFILTER(AC);
     CASE_IDFILTER(AR);
@@ -269,7 +282,11 @@ short BKE_idtype_idcode_from_idfilter(const uint64_t idfilter)
     CASE_IDFILTER(GR);
     CASE_IDFILTER(CV);
     CASE_IDFILTER(IM);
+    CASE_IDFILTER_NONE(IP);
+    CASE_IDFILTER(KE);
     CASE_IDFILTER(LA);
+    CASE_IDFILTER(LI);
+    CASE_IDFILTER(LP);
     CASE_IDFILTER(LS);
     CASE_IDFILTER(LT);
     CASE_IDFILTER(MA);
@@ -283,21 +300,25 @@ short BKE_idtype_idcode_from_idfilter(const uint64_t idfilter)
     CASE_IDFILTER(PAL);
     CASE_IDFILTER(PC);
     CASE_IDFILTER(PT);
-    CASE_IDFILTER(LP);
     CASE_IDFILTER(SCE);
+    CASE_IDFILTER(SCR);
     CASE_IDFILTER(SIM);
-    CASE_IDFILTER(SPK);
     CASE_IDFILTER(SO);
+    CASE_IDFILTER(SPK);
     CASE_IDFILTER(TE);
     CASE_IDFILTER(TXT);
     CASE_IDFILTER(VF);
     CASE_IDFILTER(VO);
+    CASE_IDFILTER(WM);
     CASE_IDFILTER(WO);
-    default:
-      return 0;
+    CASE_IDFILTER(WS);
   }
 
+  BLI_assert_unreachable();
+  return 0;
+
 #undef CASE_IDFILTER
+#undef CASE_IDFILTER_NONE
 }
 
 int BKE_idtype_idcode_to_index(const short idcode)
diff --git a/source/blender/blenkernel/intern/image.cc b/source/blender/blenkernel/intern/image.cc
index 92e98935e83..f8b2d841028 100644
--- a/source/blender/blenkernel/intern/image.cc
+++ b/source/blender/blenkernel/intern/image.cc
@@ -2475,7 +2475,10 @@ int BKE_imbuf_write(ImBuf *ibuf, const char *name, const ImageFormatData *imf)
   return ok;
 }
 
-int BKE_imbuf_write_as(ImBuf *ibuf, const char *name, ImageFormatData *imf, const bool save_copy)
+int BKE_imbuf_write_as(ImBuf *ibuf,
+                       const char *name,
+                       const ImageFormatData *imf,
+                       const bool save_copy)
 {
   ImBuf ibuf_back = *ibuf;
   int ok;
@@ -5057,13 +5060,7 @@ void BKE_image_get_size(Image *image, ImageUser *iuser, int *r_width, int *r_hei
   }
   else if (image != nullptr && image->type == IMA_TYPE_R_RESULT && iuser != nullptr &&
            iuser->scene != nullptr) {
-    Scene *scene = iuser->scene;
-    *r_width = (scene->r.xsch * scene->r.size) / 100;
-    *r_height = (scene->r.ysch * scene->r.size) / 100;
-    if ((scene->r.mode & R_BORDER) && (scene->r.mode & R_CROP)) {
-      *r_width *= BLI_rctf_size_x(&scene->r.border);
-      *r_height *= BLI_rctf_size_y(&scene->r.border);
-    }
+    BKE_render_resolution(&iuser->scene->r, true, r_width, r_height);
   }
   else {
     *r_width = IMG_SIZE_FALLBACK;
diff --git a/source/blender/blenkernel/intern/image_gpu.cc b/source/blender/blenkernel/intern/image_gpu.cc
index 6edb9e1b24c..6506b40b603 100644
--- a/source/blender/blenkernel/intern/image_gpu.cc
+++ b/source/blender/blenkernel/intern/image_gpu.cc
@@ -737,11 +737,11 @@ static void gpu_texture_update_from_ibuf(
   }
   else {
     /* Byte image is in original colorspace from the file, and may need conversion. */
-    if (IMB_colormanagement_space_is_data(ibuf->rect_colorspace) ||
-        IMB_colormanagement_space_is_scene_linear(ibuf->rect_colorspace)) {
+    if (IMB_colormanagement_space_is_data(ibuf->rect_colorspace)) {
       /* Non-color data, just store buffer as is. */
     }
-    else if (IMB_colormanagement_space_is_srgb(ibuf->rect_colorspace)) {
+    else if (IMB_colormanagement_space_is_srgb(ibuf->rect_colorspace) ||
+             IMB_colormanagement_space_is_scene_linear(ibuf->rect_colorspace)) {
       /* sRGB or scene linear, store as byte texture that the GPU can decode directly. */
       rect = (uchar *)MEM_mallocN(sizeof(uchar[4]) * w * h, __func__);
       if (rect == nullptr) {
diff --git a/source/blender/blenkernel/intern/image_save.cc b/source/blender/blenkernel/intern/image_save.cc
index 3f6f81845e2..cd86d3f7087 100644
--- a/source/blender/blenkernel/intern/image_save.cc
+++ b/source/blender/blenkernel/intern/image_save.cc
@@ -204,7 +204,7 @@ bool BKE_image_save_options_init(ImageSaveOptions *opts,
   return (ibuf != nullptr);
 }
 
-void BKE_image_save_options_update(ImageSaveOptions *opts, Image *image)
+void BKE_image_save_options_update(ImageSaveOptions *opts, const Image *image)
 {
   /* Auto update color space when changing save as render and file type. */
   if (opts->save_as_render) {
@@ -272,7 +272,7 @@ static void image_save_post(ReportList *reports,
                             Image *ima,
                             ImBuf *ibuf,
                             int ok,
-                            ImageSaveOptions *opts,
+                            const ImageSaveOptions *opts,
                             int save_copy,
                             const char *filepath,
                             bool *r_colorspace_changed)
@@ -359,7 +359,7 @@ static void imbuf_save_post(ImBuf *ibuf, ImBuf *colormanaged_ibuf)
 static bool image_save_single(ReportList *reports,
                               Image *ima,
                               ImageUser *iuser,
-                              ImageSaveOptions *opts,
+                              const ImageSaveOptions *opts,
                               bool *r_colorspace_changed)
 {
   void *lock;
@@ -375,7 +375,7 @@ static bool image_save_single(ReportList *reports,
   ImBuf *colormanaged_ibuf = nullptr;
   const bool save_copy = opts->save_copy;
   const bool save_as_render = opts->save_as_render;
-  ImageFormatData *imf = &opts->im_format;
+  const ImageFormatData *imf = &opts->im_format;
 
   if (ima->type == IMA_TYPE_R_RESULT) {
     /* enforce user setting for RGB or RGBA, but skip BW */
@@ -620,7 +620,7 @@ static bool image_save_single(ReportList *reports,
 }
 
 bool BKE_image_save(
-    ReportList *reports, Main *bmain, Image *ima, ImageUser *iuser, ImageSaveOptions *opts)
+    ReportList *reports, Main *bmain, Image *ima, ImageUser *iuser, const ImageSaveOptions *opts)
 {
   /* For saving a tiled image we need an iuser, so use a local one if there isn't already one. */
   ImageUser save_iuser;
diff --git a/source/blender/blenkernel/intern/key.c b/source/blender/blenkernel/intern/key.c
index 594cffe6406..97eac0b9f91 100644
--- a/source/blender/blenkernel/intern/key.c
+++ b/source/blender/blenkernel/intern/key.c
@@ -191,7 +191,7 @@ static void shapekey_blend_read_expand(BlendExpander *expander, ID *id)
 
 IDTypeInfo IDType_ID_KE = {
     .id_code = ID_KE,
-    .id_filter = 0,
+    .id_filter = FILTER_ID_KE,
     .main_listbase_index = INDEX_ID_KE,
     .struct_size = sizeof(Key),
     .name = "Key",
diff --git a/source/blender/blenkernel/intern/lib_id_remapper.cc b/source/blender/blenkernel/intern/lib_id_remapper.cc
index 7e75e0f5d93..98ac9110a48 100644
--- a/source/blender/blenkernel/intern/lib_id_remapper.cc
+++ b/source/blender/blenkernel/intern/lib_id_remapper.cc
@@ -36,6 +36,7 @@ struct IDRemapper {
     BLI_assert(old_id != nullptr);
     BLI_assert(new_id == nullptr || (GS(old_id->name) == GS(new_id->name)));
     mappings.add(old_id, new_id);
+    BLI_assert(BKE_idtype_idcode_to_idfilter(GS(old_id->name)) != 0);
     source_types |= BKE_idtype_idcode_to_idfilter(GS(old_id->name));
   }
 
diff --git a/source/blender/blenkernel/intern/lib_id_test.cc b/source/blender/blenkernel/intern/lib_id_test.cc
index d6101d71be5..1aba78eed8f 100644
--- a/source/blender/blenkernel/intern/lib_id_test.cc
+++ b/source/blender/blenkernel/intern/lib_id_test.cc
@@ -18,19 +18,18 @@
 namespace blender::bke::tests {
 
 struct LibIDMainSortTestContext {
-  Main *bmain;
-};
+  Main *bmain = nullptr;
 
-static void test_lib_id_main_sort_init(LibIDMainSortTestContext *ctx)
-{
-  BKE_idtype_init();
-  ctx->bmain = BKE_main_new();
-}
-
-static void test_lib_id_main_sort_free(LibIDMainSortTestContext *ctx)
-{
-  BKE_main_free(ctx->bmain);
-}
+  LibIDMainSortTestContext()
+  {
+    BKE_idtype_init();
+    bmain = BKE_main_new();
+  }
+  ~LibIDMainSortTestContext()
+  {
+    BKE_main_free(bmain);
+  }
+};
 
 static void test_lib_id_main_sort_check_order(std::initializer_list<ID *> list)
 {
@@ -47,8 +46,7 @@ static void test_lib_id_main_sort_check_order(std::initializer_list<ID *> list)
 
 TEST(lib_id_main_sort, local_ids_1)
 {
-  LibIDMainSortTestContext ctx = {nullptr};
-  test_lib_id_main_sort_init(&ctx);
+  LibIDMainSortTestContext ctx;
   EXPECT_TRUE(BLI_listbase_is_empty(&ctx.bmain->libraries));
 
   ID *id_c = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "OB_C"));
@@ -57,14 +55,22 @@ TEST(lib_id_main_sort, local_ids_1)
   EXPECT_TRUE(ctx.bmain->objects.first == id_a);
   EXPECT_TRUE(ctx.bmain->objects.last == id_c);
   test_lib_id_main_sort_check_order({id_a, id_b, id_c});
+}
 
-  test_lib_id_main_sort_free(&ctx);
+static void change_lib(Main * /*bmain*/, ID *id, Library *lib)
+{
+  id->lib = lib;
+}
+
+static void change_name(Main *bmain, ID *id, const char *name)
+{
+  BLI_strncpy(id->name + 2, name, MAX_NAME);
+  BKE_id_new_name_validate(&bmain->objects, id, nullptr, true);
 }
 
 TEST(lib_id_main_sort, linked_ids_1)
 {
-  LibIDMainSortTestContext ctx = {nullptr};
-  test_lib_id_main_sort_init(&ctx);
+  LibIDMainSortTestContext ctx;
   EXPECT_TRUE(BLI_listbase_is_empty(&ctx.bmain->libraries));
 
   Library *lib_a = static_cast<Library *>(BKE_id_new(ctx.bmain, ID_LI, "LI_A"));
@@ -92,14 +98,11 @@ TEST(lib_id_main_sort, linked_ids_1)
   EXPECT_TRUE(ctx.bmain->objects.first == id_c);
   EXPECT_TRUE(ctx.bmain->objects.last == id_b);
   test_lib_id_main_sort_check_order({id_c, id_a, id_b});
-
-  test_lib_id_main_sort_free(&ctx);
 }
 
 TEST(lib_id_main_unique_name, local_ids_1)
 {
-  LibIDMainSortTestContext ctx = {nullptr};
-  test_lib_id_main_sort_init(&ctx);
+  LibIDMainSortTestContext ctx;
   EXPECT_TRUE(BLI_listbase_is_empty(&ctx.bmain->libraries));
 
   ID *id_c = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "OB_C"));
@@ -107,21 +110,18 @@ TEST(lib_id_main_unique_name, local_ids_1)
   ID *id_b = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "OB_B"));
   test_lib_id_main_sort_check_order({id_a, id_b, id_c});
 
-  BLI_strncpy(id_c->name, id_a->name, sizeof(id_c->name));
-  BKE_id_new_name_validate(&ctx.bmain->objects, id_c, nullptr, false);
-  EXPECT_TRUE(strcmp(id_c->name + 2, "OB_A.001") == 0);
-  EXPECT_TRUE(strcmp(id_a->name + 2, "OB_A") == 0);
+  change_name(ctx.bmain, id_c, "OB_A");
+
+  EXPECT_STREQ(id_c->name + 2, "OB_A.001");
+  EXPECT_STREQ(id_a->name + 2, "OB_A");
   EXPECT_TRUE(ctx.bmain->objects.first == id_a);
   EXPECT_TRUE(ctx.bmain->objects.last == id_b);
   test_lib_id_main_sort_check_order({id_a, id_c, id_b});
-
-  test_lib_id_main_sort_free(&ctx);
 }
 
 TEST(lib_id_main_unique_name, linked_ids_1)
 {
-  LibIDMainSortTestContext ctx = {nullptr};
-  test_lib_id_main_sort_init(&ctx);
+  LibIDMainSortTestContext ctx;
   EXPECT_TRUE(BLI_listbase_is_empty(&ctx.bmain->libraries));
 
   Library *lib_a = static_cast<Library *>(BKE_id_new(ctx.bmain, ID_LI, "LI_A"));
@@ -130,29 +130,263 @@ TEST(lib_id_main_unique_name, linked_ids_1)
   ID *id_a = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "OB_A"));
   ID *id_b = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "OB_B"));
 
-  id_a->lib = lib_a;
+  change_lib(ctx.bmain, id_a, lib_a);
   id_sort_by_name(&ctx.bmain->objects, id_a, nullptr);
-  id_b->lib = lib_a;
+  change_lib(ctx.bmain, id_b, lib_a);
   id_sort_by_name(&ctx.bmain->objects, id_b, nullptr);
-  BLI_strncpy(id_b->name, id_a->name, sizeof(id_b->name));
-  BKE_id_new_name_validate(&ctx.bmain->objects, id_b, nullptr, true);
-  EXPECT_TRUE(strcmp(id_b->name + 2, "OB_A.001") == 0);
-  EXPECT_TRUE(strcmp(id_a->name + 2, "OB_A") == 0);
+
+  change_name(ctx.bmain, id_b, "OB_A");
+  EXPECT_STREQ(id_b->name + 2, "OB_A.001");
+  EXPECT_STREQ(id_a->name + 2, "OB_A");
   EXPECT_TRUE(ctx.bmain->objects.first == id_c);
   EXPECT_TRUE(ctx.bmain->objects.last == id_b);
   test_lib_id_main_sort_check_order({id_c, id_a, id_b});
 
-  id_b->lib = lib_b;
+  change_lib(ctx.bmain, id_b, lib_b);
   id_sort_by_name(&ctx.bmain->objects, id_b, nullptr);
-  BLI_strncpy(id_b->name, id_a->name, sizeof(id_b->name));
-  BKE_id_new_name_validate(&ctx.bmain->objects, id_b, nullptr, true);
-  EXPECT_TRUE(strcmp(id_b->name + 2, "OB_A") == 0);
-  EXPECT_TRUE(strcmp(id_a->name + 2, "OB_A") == 0);
+  change_name(ctx.bmain, id_b, "OB_A");
+  EXPECT_STREQ(id_b->name + 2, "OB_A");
+  EXPECT_STREQ(id_a->name + 2, "OB_A");
   EXPECT_TRUE(ctx.bmain->objects.first == id_c);
   EXPECT_TRUE(ctx.bmain->objects.last == id_b);
   test_lib_id_main_sort_check_order({id_c, id_a, id_b});
+}
+
+TEST(lib_id_main_unique_name, ids_sorted_by_default)
+{
+  LibIDMainSortTestContext ctx;
+
+  ID *id_foo = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+  ID *id_bar = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Bar"));
+  ID *id_baz = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Baz"));
+  ID *id_yes = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Yes"));
+  test_lib_id_main_sort_check_order({id_bar, id_baz, id_foo, id_yes});
+}
+
+static ID *add_id_in_library(Main *bmain, const char *name, Library *lib)
+{
+  ID *id = static_cast<ID *>(BKE_id_new(bmain, ID_OB, name));
+  id->lib = lib;
+  id_sort_by_name(&bmain->objects, id, nullptr);
+  return id;
+}
+
+TEST(lib_id_main_unique_name, ids_sorted_by_default_with_libraries)
+{
+  LibIDMainSortTestContext ctx;
+
+  Library *lib_one = static_cast<Library *>(BKE_id_new(ctx.bmain, ID_LI, "LibOne"));
+  Library *lib_two = static_cast<Library *>(BKE_id_new(ctx.bmain, ID_LI, "LibTwo"));
+
+  ID *id_foo = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+  ID *id_bar = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Bar"));
+
+  ID *id_l1c = add_id_in_library(ctx.bmain, "C", lib_one);
+  ID *id_l2b = add_id_in_library(ctx.bmain, "B", lib_two);
+  ID *id_l1a = add_id_in_library(ctx.bmain, "A", lib_one);
+
+  ID *id_baz = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Baz"));
+  ID *id_yes = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Yes"));
+
+  test_lib_id_main_sort_check_order({id_bar, id_baz, id_foo, id_yes, id_l1a, id_l1c, id_l2b});
+}
+
+TEST(lib_id_main_unique_name, name_too_long_handling)
+{
+  LibIDMainSortTestContext ctx;
+  const char *name_a = "Long_Name_That_Does_Not_Fit_Into_Max_Name_Limit_And_Should_Get_Truncated";
+  const char *name_b = "Another_Long_Name_That_Does_Not_Fit_And_Has_A_Number_Suffix.123456";
+  const char *name_c = "Name_That_Has_Too_Long_Number_Suffix.1234567890";
+
+  ID *id_a = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, name_a));
+  ID *id_b = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, name_b));
+  ID *id_c = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, name_c));
+
+  EXPECT_STREQ(id_a->name + 2, "Long_Name_That_Does_Not_Fit_Into_Max_Name_Limit_And_Should_Get_");
+  EXPECT_STREQ(id_b->name + 2, "Another_Long_Name_That_Does_Not_Fit_And_Has_A_Number_Suffix.123");
+  EXPECT_STREQ(id_c->name + 2, "Name_That_Has_Too_Long_Number_Suffix.1234567890"); /* Unchanged */
+}
+
+TEST(lib_id_main_unique_name, create_equivalent_numeric_suffixes)
+{
+  LibIDMainSortTestContext ctx;
+
+  /* Create names where many of their numeric suffixes are
+   * the same number, yet the names are different and thus
+   * should be allowed as-is. */
+  ID *id_a = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.123"));
+  ID *id_b = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.000"));
+  ID *id_c = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.003"));
+  ID *id_d = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.3"));
+  ID *id_e = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.0"));
+  ID *id_f = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo."));
+  ID *id_g = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.0123"));
+  ID *id_h = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+  ID *id_i = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.."));
+  ID *id_j = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo..001"));
+  ID *id_k = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo..000"));
+
+  EXPECT_STREQ(id_a->name + 2, "Foo.123");
+  EXPECT_STREQ(id_b->name + 2, "Foo.000");
+  EXPECT_STREQ(id_c->name + 2, "Foo.003");
+  EXPECT_STREQ(id_d->name + 2, "Foo.3");
+  EXPECT_STREQ(id_e->name + 2, "Foo.0");
+  EXPECT_STREQ(id_f->name + 2, "Foo.");
+  EXPECT_STREQ(id_g->name + 2, "Foo.0123");
+  EXPECT_STREQ(id_h->name + 2, "Foo");
+  EXPECT_STREQ(id_i->name + 2, "Foo..");
+  EXPECT_STREQ(id_j->name + 2, "Foo..001");
+  EXPECT_STREQ(id_k->name + 2, "Foo..000");
+
+  /* Now create their exact duplicates again, and check what happens. */
+  id_a = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.123"));
+  id_b = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.000"));
+  id_c = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.003"));
+  id_d = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.3"));
+  id_e = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.0"));
+  id_f = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo."));
+  id_g = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.0123"));
+  id_h = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+  id_i = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.."));
+  id_j = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo..001"));
+  id_k = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo..000"));
+
+  EXPECT_STREQ(id_a->name + 2, "Foo.001");
+  EXPECT_STREQ(id_b->name + 2, "Foo.002");
+  EXPECT_STREQ(id_c->name + 2, "Foo.004");
+  EXPECT_STREQ(id_d->name + 2, "Foo.005");
+  EXPECT_STREQ(id_e->name + 2, "Foo.006");
+  EXPECT_STREQ(id_f->name + 2, "Foo..002");
+  EXPECT_STREQ(id_g->name + 2, "Foo.007");
+  EXPECT_STREQ(id_h->name + 2, "Foo.008");
+  EXPECT_STREQ(id_i->name + 2, "Foo...001");
+  EXPECT_STREQ(id_j->name + 2, "Foo..003");
+  EXPECT_STREQ(id_k->name + 2, "Foo..004");
+}
+
+TEST(lib_id_main_unique_name, zero_suffix_is_never_assigned)
+{
+  LibIDMainSortTestContext ctx;
+
+  /* Creating these should assign 002 to the first one, but the next
+   * ones should start numbers starting from 1: 001 and 003. */
+  ID *id_002 = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.002"));
+  ID *id_001 = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.002"));
+  ID *id_003 = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.002"));
+
+  EXPECT_STREQ(id_002->name + 2, "Foo.002");
+  EXPECT_STREQ(id_001->name + 2, "Foo.001");
+  EXPECT_STREQ(id_003->name + 2, "Foo.003");
+}
+
+TEST(lib_id_main_unique_name, remove_after_dup_get_original_name)
+{
+  LibIDMainSortTestContext ctx;
+
+  ID *id_a = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+  ID *id_b = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+
+  EXPECT_STREQ(id_a->name + 2, "Foo");
+  EXPECT_STREQ(id_b->name + 2, "Foo.001");
+  BKE_id_free(ctx.bmain, id_a);
+
+  id_a = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+  EXPECT_STREQ(id_a->name + 2, "Foo");
+}
+
+TEST(lib_id_main_unique_name, name_number_suffix_assignment)
+{
+  LibIDMainSortTestContext ctx;
+
+  /* Create <1k objects first. */
+  const int total_object_count = 1200;
+  ID *ids[total_object_count] = {};
+  for (int i = 0; i < total_object_count / 2; ++i) {
+    ids[i] = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+  }
+
+  /* They should get assigned sequential numeric suffixes. */
+  EXPECT_STREQ(ids[0]->name + 2, "Foo");
+  EXPECT_STREQ(ids[1]->name + 2, "Foo.001");
+  EXPECT_STREQ(ids[total_object_count / 2 - 1]->name + 2, "Foo.599");
+
+  /* Free some of the objects. */
+  BKE_id_free(ctx.bmain, ids[10]);
+  BKE_id_free(ctx.bmain, ids[20]);
+  BKE_id_free(ctx.bmain, ids[30]);
+
+  /* Create objects again; they should get suffixes that were just free'd up. */
+  ID *id_010 = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+  EXPECT_STREQ(id_010->name + 2, "Foo.010");
+  ID *id_020 = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.123"));
+  EXPECT_STREQ(id_020->name + 2, "Foo.020");
+  /* Suffixes >1k do not get the "use the most proper free one" treatment. */
+  ID *id_2000 = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.2000"));
+  EXPECT_STREQ(id_2000->name + 2, "Foo.2000");
+  /* But smaller than 1k suffixes do get proper empty spots. */
+  ID *id_030 = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+  EXPECT_STREQ(id_030->name + 2, "Foo.030");
+  ID *id_600 = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+  EXPECT_STREQ(id_600->name + 2, "Foo.600");
+
+  /* Max possible numeric suffix. */
+  ID *id_max = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.999999999"));
+  EXPECT_STREQ(id_max->name + 2, "Foo.999999999");
+  /* Try with max. possible suffix again: will assign free suffix under 1k. */
+  ID *id_max1 = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.999999999"));
+  EXPECT_STREQ(id_max1->name + 2, "Foo.601");
+
+  /* Now create the rest of objects, to use all the suffixes up to 1k.
+   * Once all the ones up to 1k are used, the logic will fall back to
+   * "use largest number seen + 1", but the largest one is already the max
+   * possible. So it will shorten the name part and restart the counter,
+   * i.e. "Fo.001". */
+  for (int i = total_object_count / 2; i < total_object_count; ++i) {
+    ids[i] = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+  }
+  /* At this point creating "Foo" based objects will fall always
+   * result in shortened name to "Fo". */
+  ID *id_fo178 = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+  EXPECT_STREQ(id_fo178->name + 2, "Fo.178");
+  ID *id_fo179 = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.2000"));
+  EXPECT_STREQ(id_fo179->name + 2, "Fo.179");
+  ID *id_fo180 = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo.999999999"));
+  EXPECT_STREQ(id_fo180->name + 2, "Fo.180");
+}
+
+TEST(lib_id_main_unique_name, renames_with_duplicates)
+{
+  LibIDMainSortTestContext ctx;
+
+  ID *id_a = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+  ID *id_b = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+  ID *id_c = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Bar"));
+
+  EXPECT_STREQ(id_a->name + 2, "Foo");
+  EXPECT_STREQ(id_b->name + 2, "Foo.001");
+  EXPECT_STREQ(id_c->name + 2, "Bar");
+
+  BKE_libblock_rename(ctx.bmain, id_a, "Foo.002");
+  EXPECT_STREQ(id_a->name + 2, "Foo.002");
+  BKE_libblock_rename(ctx.bmain, id_b, "Bar");
+  EXPECT_STREQ(id_b->name + 2, "Bar.001");
+  BKE_libblock_rename(ctx.bmain, id_c, "Foo");
+  EXPECT_STREQ(id_c->name + 2, "Foo");
+  BKE_libblock_rename(ctx.bmain, id_b, "Bar");
+  EXPECT_STREQ(id_b->name + 2, "Bar");
+}
+
+TEST(lib_id_main_unique_name, names_are_unique_per_id_type)
+{
+  LibIDMainSortTestContext ctx;
+
+  ID *id_a = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
+  ID *id_b = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_CA, "Foo"));
+  ID *id_c = static_cast<ID *>(BKE_id_new(ctx.bmain, ID_OB, "Foo"));
 
-  test_lib_id_main_sort_free(&ctx);
+  EXPECT_STREQ(id_a->name + 2, "Foo");
+  EXPECT_STREQ(id_b->name + 2, "Foo"); /* Different types (OB & CA) can have the same name. */
+  EXPECT_STREQ(id_c->name + 2, "Foo.001");
 }
 
 }  // namespace blender::bke::tests
diff --git a/source/blender/blenkernel/intern/lib_override.cc b/source/blender/blenkernel/intern/lib_override.cc
index d816b5ede5f..0c5f59be768 100644
--- a/source/blender/blenkernel/intern/lib_override.cc
+++ b/source/blender/blenkernel/intern/lib_override.cc
@@ -428,14 +428,42 @@ static void lib_override_prefill_newid_from_existing_overrides(Main *bmain, ID *
 {
   ID *id_iter;
   FOREACH_MAIN_ID_BEGIN (bmain, id_iter) {
-    if (ID_IS_OVERRIDE_LIBRARY_REAL(id_iter) &&
-        id_iter->override_library->hierarchy_root == id_hierarchy_root) {
-      id_iter->override_library->reference->newid = id_iter;
+    ID *id = id_iter;
+    if (GS(id_iter->name) == ID_KE) {
+      id = reinterpret_cast<Key *>(id_iter)->from;
+      BLI_assert(id != nullptr);
+    }
+    if (ID_IS_OVERRIDE_LIBRARY_REAL(id) &&
+        id->override_library->hierarchy_root == id_hierarchy_root) {
+      id->override_library->reference->newid = id;
+      if (GS(id_iter->name) == ID_KE) {
+        Key *reference_key = BKE_key_from_id(id->override_library->reference);
+        if (reference_key != nullptr) {
+          reference_key->id.newid = id_iter;
+        }
+      }
     }
   }
   FOREACH_MAIN_ID_END;
 }
 
+static void lib_override_remapper_overrides_add(IDRemapper *id_remapper,
+                                                ID *reference_id,
+                                                ID *local_id)
+{
+  BKE_id_remapper_add(id_remapper, reference_id, local_id);
+
+  Key *reference_key, *local_key = nullptr;
+  if ((reference_key = BKE_key_from_id(reference_id)) != nullptr) {
+    if (reference_id->newid != nullptr) {
+      local_key = BKE_key_from_id(reference_id->newid);
+      BLI_assert(local_key != nullptr);
+    }
+
+    BKE_id_remapper_add(id_remapper, &reference_key->id, &local_key->id);
+  }
+}
+
 /* TODO: Make this static local function instead? API is becoming complex, and it's not used
  * outside of this file anyway. */
 bool BKE_lib_override_library_create_from_tag(Main *bmain,
@@ -544,6 +572,7 @@ bool BKE_lib_override_library_create_from_tag(Main *bmain,
     BLI_assert(id_hierarchy_root != nullptr);
 
     LinkNode *relinked_ids = nullptr;
+    IDRemapper *id_remapper = BKE_id_remapper_create();
     /* Still checking the whole Main, that way we can tag other local IDs as needing to be
      * remapped to use newly created overriding IDs, if needed. */
     ID *id;
@@ -568,6 +597,14 @@ bool BKE_lib_override_library_create_from_tag(Main *bmain,
        * consider we should also relink it, as part of recursive resync. */
       if ((other_id->tag & LIB_TAG_DOIT) != 0 && other_id->lib != id_root_reference->lib) {
         BLI_linklist_prepend(&relinked_ids, other_id);
+        if (ID_IS_OVERRIDE_LIBRARY_REAL(other_id) &&
+            other_id->override_library->hierarchy_root == id_hierarchy_root) {
+          reference_id = other_id->override_library->reference;
+          ID *local_id = reference_id->newid;
+          if (other_id == local_id) {
+            lib_override_remapper_overrides_add(id_remapper, reference_id, local_id);
+          }
+        }
       }
       if (other_id != id) {
         other_id->lib = id_root_reference->lib;
@@ -575,7 +612,6 @@ bool BKE_lib_override_library_create_from_tag(Main *bmain,
     }
     FOREACH_MAIN_ID_END;
 
-    IDRemapper *id_remapper = BKE_id_remapper_create();
     for (todo_id_iter = static_cast<LinkData *>(todo_ids.first); todo_id_iter != nullptr;
          todo_id_iter = todo_id_iter->next) {
       reference_id = static_cast<ID *>(todo_id_iter->data);
@@ -587,15 +623,7 @@ bool BKE_lib_override_library_create_from_tag(Main *bmain,
 
       local_id->override_library->hierarchy_root = id_hierarchy_root;
 
-      BKE_id_remapper_add(id_remapper, reference_id, local_id);
-
-      Key *reference_key, *local_key = nullptr;
-      if ((reference_key = BKE_key_from_id(reference_id)) != nullptr) {
-        local_key = BKE_key_from_id(reference_id->newid);
-        BLI_assert(local_key != nullptr);
-
-        BKE_id_remapper_add(id_remapper, &reference_key->id, &local_key->id);
-      }
+      lib_override_remapper_overrides_add(id_remapper, reference_id, local_id);
     }
 
     BKE_libblock_relink_multiple(bmain,
@@ -1121,14 +1149,26 @@ static bool lib_override_library_create_do(Main *bmain,
   BKE_main_relations_tag_set(bmain, MAINIDRELATIONS_ENTRY_TAGS_PROCESSED, false);
   lib_override_hierarchy_dependencies_recursive_tag(&data);
 
+  /* In case the operation is on an already partially overridden hierarchy, all existing overrides
+   * in that hierarchy need to be tagged for remapping from linked reference ID usages to newly
+   * created overrides ones. */
+  if (id_hierarchy_root_reference->lib != id_root_reference->lib) {
+    BLI_assert(ID_IS_OVERRIDE_LIBRARY_REAL(id_hierarchy_root_reference));
+    BLI_assert(id_hierarchy_root_reference->override_library->reference->lib ==
+               id_root_reference->lib);
+
+    BKE_main_relations_tag_set(bmain, MAINIDRELATIONS_ENTRY_TAGS_PROCESSED, false);
+    data.hierarchy_root_id = id_hierarchy_root_reference;
+    data.id_root = id_hierarchy_root_reference;
+    data.is_override = true;
+    lib_override_overrides_group_tag(&data);
+  }
+
   BKE_main_relations_free(bmain);
   lib_override_group_tag_data_clear(&data);
 
   bool success = false;
   if (id_hierarchy_root_reference->lib != id_root_reference->lib) {
-    BLI_assert(ID_IS_OVERRIDE_LIBRARY_REAL(id_hierarchy_root_reference));
-    BLI_assert(id_hierarchy_root_reference->override_library->reference->lib ==
-               id_root_reference->lib);
     success = BKE_lib_override_library_create_from_tag(bmain,
                                                        owner_library,
                                                        id_root_reference,
@@ -1771,6 +1811,11 @@ static bool lib_override_library_resync(Main *bmain,
               break;
           }
         }
+        if (reference_id == nullptr) {
+          /* Can happen e.g. when there is a local override of a shapekey, but the matching linked
+           * obdata (mesh etc.) does not have any shapekey anymore. */
+          continue;
+        }
         BLI_assert(GS(reference_id->name) == GS(id->name));
 
         if (!BLI_ghash_haskey(linkedref_to_old_override, reference_id)) {
diff --git a/source/blender/blenkernel/intern/lib_query.c b/source/blender/blenkernel/intern/lib_query.c
index 38252a46b93..a869bf4c4b0 100644
--- a/source/blender/blenkernel/intern/lib_query.c
+++ b/source/blender/blenkernel/intern/lib_query.c
@@ -391,8 +391,7 @@ uint64_t BKE_library_id_can_use_filter_id(const ID *id_owner)
 
   switch ((ID_Type)id_type_owner) {
     case ID_LI:
-      /* ID_LI doesn't exist as filter_id. */
-      return 0;
+      return FILTER_ID_LI;
     case ID_SCE:
       return FILTER_ID_OB | FILTER_ID_WO | FILTER_ID_SCE | FILTER_ID_MC | FILTER_ID_MA |
              FILTER_ID_GR | FILTER_ID_TXT | FILTER_ID_LS | FILTER_ID_MSK | FILTER_ID_SO |
@@ -472,6 +471,8 @@ uint64_t BKE_library_id_can_use_filter_id(const ID *id_owner)
       /* Deprecated... */
       return 0;
   }
+
+  BLI_assert_unreachable();
   return 0;
 }
 
diff --git a/source/blender/blenkernel/intern/lib_remap.c b/source/blender/blenkernel/intern/lib_remap.c
index 246999a1179..28b0337d9a2 100644
--- a/source/blender/blenkernel/intern/lib_remap.c
+++ b/source/blender/blenkernel/intern/lib_remap.c
@@ -428,10 +428,13 @@ static void libblock_remap_data_update_tags(ID *old_id, ID *new_id, void *user_d
 }
 
 static void libblock_remap_reset_remapping_status_callback(ID *old_id,
-                                                           ID *UNUSED(new_id),
+                                                           ID *new_id,
                                                            void *UNUSED(user_data))
 {
   BKE_libblock_runtime_reset_remapping_status(old_id);
+  if (new_id != NULL) {
+    BKE_libblock_runtime_reset_remapping_status(new_id);
+  }
 }
 
 /**
diff --git a/source/blender/blenkernel/intern/library.c b/source/blender/blenkernel/intern/library.c
index 03a17b2ecc5..4962b1c448e 100644
--- a/source/blender/blenkernel/intern/library.c
+++ b/source/blender/blenkernel/intern/library.c
@@ -63,7 +63,7 @@ static void library_foreach_path(ID *id, BPathForeachPathData *bpath_data)
 
 IDTypeInfo IDType_ID_LI = {
     .id_code = ID_LI,
-    .id_filter = 0,
+    .id_filter = FILTER_ID_LI,
     .main_listbase_index = INDEX_ID_LI,
     .struct_size = sizeof(Library),
     .name = "Library",
diff --git a/source/blender/blenkernel/intern/mesh.cc b/source/blender/blenkernel/intern/mesh.cc
index 2a14370bf93..cf05dc0404e 100644
--- a/source/blender/blenkernel/intern/mesh.cc
+++ b/source/blender/blenkernel/intern/mesh.cc
@@ -1190,6 +1190,11 @@ static void ensure_orig_index_layer(CustomData &data, const int size)
 void BKE_mesh_ensure_default_orig_index_customdata(Mesh *mesh)
 {
   BLI_assert(mesh->runtime.wrapper_type == ME_WRAPPER_TYPE_MDATA);
+  BKE_mesh_ensure_default_orig_index_customdata_no_check(mesh);
+}
+
+void BKE_mesh_ensure_default_orig_index_customdata_no_check(Mesh *mesh)
+{
   ensure_orig_index_layer(mesh->vdata, mesh->totvert);
   ensure_orig_index_layer(mesh->edata, mesh->totedge);
   ensure_orig_index_layer(mesh->pdata, mesh->totpoly);
diff --git a/source/blender/blenkernel/intern/mesh_convert.cc b/source/blender/blenkernel/intern/mesh_convert.cc
index 7ebb3e25fd4..923d2703960 100644
--- a/source/blender/blenkernel/intern/mesh_convert.cc
+++ b/source/blender/blenkernel/intern/mesh_convert.cc
@@ -751,6 +751,8 @@ void BKE_mesh_to_curve(Main *bmain, Depsgraph *depsgraph, Scene *UNUSED(scene),
 
 void BKE_pointcloud_from_mesh(Mesh *me, PointCloud *pointcloud)
 {
+  using namespace blender;
+
   BLI_assert(me != nullptr);
 
   pointcloud->totpoint = me->totvert;
@@ -758,14 +760,17 @@ void BKE_pointcloud_from_mesh(Mesh *me, PointCloud *pointcloud)
 
   /* Copy over all attributes. */
   CustomData_merge(&me->vdata, &pointcloud->pdata, CD_MASK_PROP_ALL, CD_DUPLICATE, me->totvert);
-  BKE_pointcloud_update_customdata_pointers(pointcloud);
-  CustomData_update_typemap(&pointcloud->pdata);
 
-  MVert *mvert;
-  mvert = me->mvert;
-  for (int i = 0; i < me->totvert; i++, mvert++) {
-    copy_v3_v3(pointcloud->co[i], mvert->co);
-  }
+  bke::AttributeAccessor mesh_attributes = bke::mesh_attributes(*me);
+  bke::MutableAttributeAccessor point_attributes = bke::pointcloud_attributes_for_write(
+      *pointcloud);
+
+  const VArray<float3> mesh_positions = mesh_attributes.lookup_or_default<float3>(
+      "position", ATTR_DOMAIN_POINT, float3(0));
+  bke::SpanAttributeWriter<float3> point_positions =
+      point_attributes.lookup_or_add_for_write_only_span<float3>("position", ATTR_DOMAIN_POINT);
+  mesh_positions.materialize(point_positions.span);
+  point_positions.finish();
 }
 
 void BKE_mesh_to_pointcloud(Main *bmain, Depsgraph *depsgraph, Scene *UNUSED(scene), Object *ob)
diff --git a/source/blender/blenkernel/intern/mesh_merge_customdata.cc b/source/blender/blenkernel/intern/mesh_merge_customdata.cc
index adaf378ed27..7bc429954b0 100644
--- a/source/blender/blenkernel/intern/mesh_merge_customdata.cc
+++ b/source/blender/blenkernel/intern/mesh_merge_customdata.cc
@@ -33,11 +33,11 @@ static int compare_v2_classify(const float uv_a[2], const float uv_b[2])
   if (uv_a[0] == uv_b[0] && uv_a[1] == uv_b[1]) {
     return CMP_EQUAL;
   }
-  /* Note that the ULP value is the primary value used to compare relative values
-   * as the absolute value doesn't account for float precision at difference scales.
+  /* NOTE(@campbellbarton): that the ULP value is the primary value used to compare relative
+   * values as the absolute value doesn't account for float precision at difference scales.
    * - For subdivision-surface ULP of 3 is sufficient,
    *   although this value is extremely small.
-   * - For bevel the URL of 12 is sufficient to merge UV's that appear to be connected
+   * - For bevel the ULP of 12 is sufficient to merge UV's that appear to be connected
    *   with bevel on Suzanne beveled 15% with 6 segments.
    *
    * These values could be tweaked but should be kept on the small side to prevent
diff --git a/source/blender/blenkernel/intern/mesh_wrapper.cc b/source/blender/blenkernel/intern/mesh_wrapper.cc
index 0362e4866e3..0b61b876abe 100644
--- a/source/blender/blenkernel/intern/mesh_wrapper.cc
+++ b/source/blender/blenkernel/intern/mesh_wrapper.cc
@@ -103,11 +103,7 @@ void BKE_mesh_wrapper_ensure_mdata(Mesh *me)
 
   /* Must isolate multithreaded tasks while holding a mutex lock. */
   blender::threading::isolate_task([&]() {
-    const eMeshWrapperType geom_type_orig = static_cast<eMeshWrapperType>(
-        me->runtime.wrapper_type);
-    me->runtime.wrapper_type = ME_WRAPPER_TYPE_MDATA;
-
-    switch (geom_type_orig) {
+    switch (static_cast<eMeshWrapperType>(me->runtime.wrapper_type)) {
       case ME_WRAPPER_TYPE_MDATA:
       case ME_WRAPPER_TYPE_SUBD: {
         break; /* Quiet warning. */
@@ -132,7 +128,7 @@ void BKE_mesh_wrapper_ensure_mdata(Mesh *me)
          * There is also a performance aspect, where this also assumes that original indices are
          * always needed when converting an edit mesh to a mesh. That might be wrong, but it's not
          * harmful. */
-        BKE_mesh_ensure_default_orig_index_customdata(me);
+        BKE_mesh_ensure_default_orig_index_customdata_no_check(me);
 
         EditMeshData *edit_data = me->runtime.edit_data;
         if (edit_data->vertexCos) {
@@ -144,8 +140,12 @@ void BKE_mesh_wrapper_ensure_mdata(Mesh *me)
     }
 
     if (me->runtime.wrapper_type_finalize) {
-      BKE_mesh_wrapper_deferred_finalize(me, &me->runtime.cd_mask_extra);
+      BKE_mesh_wrapper_deferred_finalize_mdata(me, &me->runtime.cd_mask_extra);
     }
+
+    /* Keep type assignment last, so that read-only access only uses the mdata code paths after all
+     * the underlying data has been initialized. */
+    me->runtime.wrapper_type = ME_WRAPPER_TYPE_MDATA;
   });
 
   BLI_mutex_unlock(mesh_eval_mutex);
diff --git a/source/blender/blenkernel/intern/modifier.c b/source/blender/blenkernel/intern/modifier.c
index 6348d83362e..831ea084961 100644
--- a/source/blender/blenkernel/intern/modifier.c
+++ b/source/blender/blenkernel/intern/modifier.c
@@ -456,6 +456,40 @@ void BKE_modifier_set_error(const Object *ob, ModifierData *md, const char *_for
   CLOG_ERROR(&LOG, "Object: \"%s\", Modifier: \"%s\", %s", ob->id.name + 2, md->name, md->error);
 }
 
+void BKE_modifier_set_warning(const struct Object *ob,
+                              struct ModifierData *md,
+                              const char *_format,
+                              ...)
+{
+  char buffer[512];
+  va_list ap;
+  const char *format = TIP_(_format);
+
+  va_start(ap, _format);
+  vsnprintf(buffer, sizeof(buffer), format, ap);
+  va_end(ap);
+  buffer[sizeof(buffer) - 1] = '\0';
+
+  /* Store the warning in the same field as the error.
+   * It is not expected to have both error and warning and having a single place to store the
+   * message simplifies interface code. */
+
+  if (md->error) {
+    MEM_freeN(md->error);
+  }
+
+  md->error = BLI_strdup(buffer);
+
+#ifndef NDEBUG
+  if ((md->mode & eModifierMode_Virtual) == 0) {
+    /* Ensure correct object is passed in. */
+    BLI_assert(BKE_modifier_get_original(ob, md) != NULL);
+  }
+#endif
+
+  UNUSED_VARS_NDEBUG(ob);
+}
+
 int BKE_modifiers_get_cage_index(const Scene *scene,
                                  Object *ob,
                                  int *r_lastPossibleCageIndex,
diff --git a/source/blender/blenkernel/intern/object.cc b/source/blender/blenkernel/intern/object.cc
index f7436b6112c..62ebb45b0ed 100644
--- a/source/blender/blenkernel/intern/object.cc
+++ b/source/blender/blenkernel/intern/object.cc
@@ -1402,6 +1402,7 @@ bool BKE_object_supports_modifiers(const Object *ob)
 {
   return (ELEM(ob->type,
                OB_MESH,
+               OB_CURVES,
                OB_CURVES_LEGACY,
                OB_SURF,
                OB_FONT,
diff --git a/source/blender/blenkernel/intern/paint.c b/source/blender/blenkernel/intern/paint.c
index 89cc25b31e6..9b0d15ac702 100644
--- a/source/blender/blenkernel/intern/paint.c
+++ b/source/blender/blenkernel/intern/paint.c
@@ -996,6 +996,12 @@ bool BKE_paint_select_elem_test(Object *ob)
   return (BKE_paint_select_vert_test(ob) || BKE_paint_select_face_test(ob));
 }
 
+bool BKE_paint_always_hide_test(Object *ob)
+{
+  return ((ob != NULL) && (ob->type == OB_MESH) && (ob->data != NULL) &&
+          (ob->mode & OB_MODE_WEIGHT_PAINT || ob->mode & OB_MODE_VERTEX_PAINT));
+}
+
 void BKE_paint_cavity_curve_preset(Paint *p, int preset)
 {
   CurveMapping *cumap = NULL;
@@ -2255,12 +2261,7 @@ PBVH *BKE_sculpt_object_pbvh_ensure(Depsgraph *depsgraph, Object *ob)
     return NULL;
   }
 
-  bool respect_hide = true;
-  if (ob->mode & (OB_MODE_VERTEX_PAINT | OB_MODE_WEIGHT_PAINT)) {
-    if (!(BKE_paint_select_vert_test(ob) || BKE_paint_select_face_test(ob))) {
-      respect_hide = false;
-    }
-  }
+  const bool respect_hide = true;
 
   PBVH *pbvh = ob->sculpt->pbvh;
   if (pbvh != NULL) {
diff --git a/source/blender/blenkernel/intern/pointcloud.cc b/source/blender/blenkernel/intern/pointcloud.cc
index e38c20d8eb7..261b053e4f9 100644
--- a/source/blender/blenkernel/intern/pointcloud.cc
+++ b/source/blender/blenkernel/intern/pointcloud.cc
@@ -68,7 +68,6 @@ static void pointcloud_init_data(ID *id)
                              nullptr,
                              pointcloud->totpoint,
                              POINTCLOUD_ATTR_POSITION);
-  BKE_pointcloud_update_customdata_pointers(pointcloud);
 }
 
 static void pointcloud_copy_data(Main *UNUSED(bmain), ID *id_dst, const ID *id_src, const int flag)
@@ -83,7 +82,6 @@ static void pointcloud_copy_data(Main *UNUSED(bmain), ID *id_dst, const ID *id_s
                   CD_MASK_ALL,
                   alloc_type,
                   pointcloud_dst->totpoint);
-  BKE_pointcloud_update_customdata_pointers(pointcloud_dst);
 
   pointcloud_dst->batch_cache = nullptr;
 }
@@ -138,7 +136,6 @@ static void pointcloud_blend_read_data(BlendDataReader *reader, ID *id)
 
   /* Geometry */
   CustomData_blend_read(reader, &pointcloud->pdata, pointcloud->totpoint);
-  BKE_pointcloud_update_customdata_pointers(pointcloud);
 
   /* Materials */
   BLO_read_pointer_array(reader, (void **)&pointcloud->mat);
@@ -194,17 +191,28 @@ static void pointcloud_random(PointCloud *pointcloud)
 {
   pointcloud->totpoint = 400;
   CustomData_realloc(&pointcloud->pdata, pointcloud->totpoint);
-  BKE_pointcloud_update_customdata_pointers(pointcloud);
 
   RNG *rng = BLI_rng_new(0);
 
-  for (int i = 0; i < pointcloud->totpoint; i++) {
-    pointcloud->co[i][0] = 2.0f * BLI_rng_get_float(rng) - 1.0f;
-    pointcloud->co[i][1] = 2.0f * BLI_rng_get_float(rng) - 1.0f;
-    pointcloud->co[i][2] = 2.0f * BLI_rng_get_float(rng) - 1.0f;
-    pointcloud->radius[i] = 0.05f * BLI_rng_get_float(rng);
+  blender::bke::MutableAttributeAccessor attributes =
+      blender::bke::pointcloud_attributes_for_write(*pointcloud);
+  blender::bke::SpanAttributeWriter positions =
+      attributes.lookup_or_add_for_write_only_span<float3>(POINTCLOUD_ATTR_POSITION,
+                                                           ATTR_DOMAIN_POINT);
+  blender::bke::SpanAttributeWriter<float> radii =
+      attributes.lookup_or_add_for_write_only_span<float>(POINTCLOUD_ATTR_RADIUS,
+                                                          ATTR_DOMAIN_POINT);
+
+  for (const int i : positions.span.index_range()) {
+    positions.span[i] =
+        float3(BLI_rng_get_float(rng), BLI_rng_get_float(rng), BLI_rng_get_float(rng)) * 2.0f -
+        1.0f;
+    radii.span[i] = 0.05f * BLI_rng_get_float(rng);
   }
 
+  positions.finish();
+  radii.finish();
+
   BLI_rng_free(rng);
 }
 
@@ -250,7 +258,6 @@ PointCloud *BKE_pointcloud_new_nomain(const int totpoint)
 
   pointcloud->totpoint = totpoint;
   CustomData_realloc(&pointcloud->pdata, pointcloud->totpoint);
-  BKE_pointcloud_update_customdata_pointers(pointcloud);
 
   return pointcloud;
 }
@@ -258,10 +265,14 @@ PointCloud *BKE_pointcloud_new_nomain(const int totpoint)
 static std::optional<blender::bounds::MinMaxResult<float3>> point_cloud_bounds(
     const PointCloud &pointcloud)
 {
-  Span<float3> positions{reinterpret_cast<float3 *>(pointcloud.co), pointcloud.totpoint};
-  if (pointcloud.radius) {
-    Span<float> radii{pointcloud.radius, pointcloud.totpoint};
-    return blender::bounds::min_max_with_radii(positions, radii);
+  blender::bke::AttributeAccessor attributes = blender::bke::pointcloud_attributes(pointcloud);
+  blender::VArraySpan<float3> positions = attributes.lookup_or_default<float3>(
+      POINTCLOUD_ATTR_POSITION, ATTR_DOMAIN_POINT, float3(0));
+  blender::VArray<float> radii = attributes.lookup_or_default<float>(
+      POINTCLOUD_ATTR_RADIUS, ATTR_DOMAIN_POINT, 0.0f);
+
+  if (!(radii.is_single() && radii.get_internal_single() == 0.0f)) {
+    return blender::bounds::min_max_with_radii(positions, radii.get_internal_span());
   }
   return blender::bounds::min_max(positions);
 }
@@ -307,14 +318,6 @@ BoundBox *BKE_pointcloud_boundbox_get(Object *ob)
   return ob->runtime.bb;
 }
 
-void BKE_pointcloud_update_customdata_pointers(PointCloud *pointcloud)
-{
-  pointcloud->co = static_cast<float(*)[3]>(
-      CustomData_get_layer_named(&pointcloud->pdata, CD_PROP_FLOAT3, POINTCLOUD_ATTR_POSITION));
-  pointcloud->radius = static_cast<float *>(
-      CustomData_get_layer_named(&pointcloud->pdata, CD_PROP_FLOAT, POINTCLOUD_ATTR_RADIUS));
-}
-
 bool BKE_pointcloud_customdata_required(const PointCloud *UNUSED(pointcloud), const char *name)
 {
   return STREQ(name, POINTCLOUD_ATTR_POSITION);
@@ -334,7 +337,6 @@ PointCloud *BKE_pointcloud_new_for_eval(const PointCloud *pointcloud_src, int to
   pointcloud_dst->totpoint = totpoint;
   CustomData_copy(
       &pointcloud_src->pdata, &pointcloud_dst->pdata, CD_MASK_ALL, CD_CALLOC, totpoint);
-  BKE_pointcloud_update_customdata_pointers(pointcloud_dst);
 
   return pointcloud_dst;
 }
diff --git a/source/blender/blenkernel/intern/scene.cc b/source/blender/blenkernel/intern/scene.cc
index 39157bc9890..e2da27fc840 100644
--- a/source/blender/blenkernel/intern/scene.cc
+++ b/source/blender/blenkernel/intern/scene.cc
@@ -2952,6 +2952,20 @@ int BKE_scene_num_threads(const Scene *scene)
   return BKE_render_num_threads(&scene->r);
 }
 
+void BKE_render_resolution(const struct RenderData *r,
+                           const bool use_crop,
+                           int *r_width,
+                           int *r_height)
+{
+  *r_width = (r->xsch * r->size) / 100;
+  *r_height = (r->ysch * r->size) / 100;
+
+  if (use_crop && (r->mode & R_BORDER) && (r->mode & R_CROP)) {
+    *r_width *= BLI_rctf_size_x(&r->border);
+    *r_height *= BLI_rctf_size_y(&r->border);
+  }
+}
+
 int BKE_render_preview_pixel_size(const RenderData *r)
 {
   if (r->preview_pixel_size == 0) {
diff --git a/source/blender/blenkernel/intern/screen.c b/source/blender/blenkernel/intern/screen.c
index 12dc1b6d1fa..c16e5ce5655 100644
--- a/source/blender/blenkernel/intern/screen.c
+++ b/source/blender/blenkernel/intern/screen.c
@@ -277,7 +277,7 @@ static void screen_blend_read_lib(BlendLibReader *reader, ID *id)
 
 IDTypeInfo IDType_ID_SCR = {
     .id_code = ID_SCR,
-    .id_filter = 0,
+    .id_filter = FILTER_ID_SCR,
     .main_listbase_index = INDEX_ID_SCR,
     .struct_size = sizeof(bScreen),
     .name = "Screen",
diff --git a/source/blender/blenkernel/intern/subdiv_eval.c b/source/blender/blenkernel/intern/subdiv_eval.c
index fda833ffd27..841b47818f1 100644
--- a/source/blender/blenkernel/intern/subdiv_eval.c
+++ b/source/blender/blenkernel/intern/subdiv_eval.c
@@ -34,8 +34,8 @@ static eOpenSubdivEvaluator opensubdiv_evalutor_from_subdiv_evaluator_type(
     case SUBDIV_EVALUATOR_TYPE_CPU: {
       return OPENSUBDIV_EVALUATOR_CPU;
     }
-    case SUBDIV_EVALUATOR_TYPE_GLSL_COMPUTE: {
-      return OPENSUBDIV_EVALUATOR_GLSL_COMPUTE;
+    case SUBDIV_EVALUATOR_TYPE_GPU: {
+      return OPENSUBDIV_EVALUATOR_GPU;
     }
   }
   BLI_assert_msg(0, "Unknown evaluator type");
diff --git a/source/blender/blenkernel/intern/subdiv_modifier.c b/source/blender/blenkernel/intern/subdiv_modifier.c
index 57af0192d59..2271fd90bda 100644
--- a/source/blender/blenkernel/intern/subdiv_modifier.c
+++ b/source/blender/blenkernel/intern/subdiv_modifier.c
@@ -98,11 +98,6 @@ static bool is_subdivision_evaluation_possible_on_gpu(void)
     return false;
   }
 
-  const int available_evaluators = openSubdiv_getAvailableEvaluators();
-  if ((available_evaluators & OPENSUBDIV_EVALUATOR_GLSL_COMPUTE) == 0) {
-    return false;
-  }
-
   return true;
 }
 
diff --git a/source/blender/blenkernel/intern/writeffmpeg.c b/source/blender/blenkernel/intern/writeffmpeg.c
index 5e11cd0703a..883591e3e87 100644
--- a/source/blender/blenkernel/intern/writeffmpeg.c
+++ b/source/blender/blenkernel/intern/writeffmpeg.c
@@ -1485,7 +1485,7 @@ void BKE_ffmpeg_preset_set(RenderData *rd, int preset)
   }
 }
 
-void BKE_ffmpeg_image_type_verify(RenderData *rd, ImageFormatData *imf)
+void BKE_ffmpeg_image_type_verify(RenderData *rd, const ImageFormatData *imf)
 {
   int audio = 0;
 
diff --git a/source/blender/blenlib/BLI_bitmap.h b/source/blender/blenlib/BLI_bitmap.h
index 19d8525311c..973cc5c3d1e 100644
--- a/source/blender/blenlib/BLI_bitmap.h
+++ b/source/blender/blenlib/BLI_bitmap.h
@@ -27,7 +27,7 @@ typedef unsigned int BLI_bitmap;
 /**
  * Number of blocks needed to hold '_num' bits.
  */
-#define _BITMAP_NUM_BLOCKS(_num) (((_num) >> _BITMAP_POWER) + 1)
+#define _BITMAP_NUM_BLOCKS(_num) (((_num) + _BITMAP_MASK) >> _BITMAP_POWER)
 
 /**
  * Size (in bytes) used to hold '_num' bits.
@@ -54,6 +54,11 @@ typedef unsigned int BLI_bitmap;
    ((BLI_bitmap *)BLI_memarena_calloc(_mem, BLI_BITMAP_SIZE(_num))))
 
 /**
+ * Declares a bitmap as a variable.
+ */
+#define BLI_BITMAP_DECLARE(_name, _num) BLI_bitmap _name[_BITMAP_NUM_BLOCKS(_num)] = {}
+
+/**
  * Get the value of a single bit at '_index'.
  */
 #define BLI_BITMAP_TEST(_bitmap, _index) \
@@ -137,6 +142,12 @@ void BLI_bitmap_and_all(BLI_bitmap *dst, const BLI_bitmap *src, size_t bits);
  */
 void BLI_bitmap_or_all(BLI_bitmap *dst, const BLI_bitmap *src, size_t bits);
 
+/**
+ * Find index of the lowest unset bit.
+ * Returns -1 if all the bits are set.
+ */
+int BLI_bitmap_find_first_unset(const BLI_bitmap *bitmap, size_t bits);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/blender/blenlib/BLI_index_range.hh b/source/blender/blenlib/BLI_index_range.hh
index bd0a7e5bb7a..6fcc560d856 100644
--- a/source/blender/blenlib/BLI_index_range.hh
+++ b/source/blender/blenlib/BLI_index_range.hh
@@ -198,6 +198,16 @@ class IndexRange {
   }
 
   /**
+   * Get the element one before the beginning. The returned value is undefined when the range is
+   * empty, and the range must start after zero already.
+   */
+  constexpr int64_t one_before_start() const
+  {
+    BLI_assert(start_ > 0);
+    return start_ - 1;
+  }
+
+  /**
    * Get the element one after the end. The returned value is undefined when the range is empty.
    */
   constexpr int64_t one_after_last() const
diff --git a/source/blender/blenlib/BLI_math_matrix.h b/source/blender/blenlib/BLI_math_matrix.h
index 2cd2a299d53..c2dafbe3a1a 100644
--- a/source/blender/blenlib/BLI_math_matrix.h
+++ b/source/blender/blenlib/BLI_math_matrix.h
@@ -238,6 +238,7 @@ bool invert_m3_ex(float m[3][3], float epsilon);
 bool invert_m3_m3_ex(float m1[3][3], const float m2[3][3], float epsilon);
 
 bool invert_m3(float R[3][3]);
+bool invert_m2_m2(float R[2][2], const float A[2][2]);
 bool invert_m3_m3(float R[3][3], const float A[3][3]);
 bool invert_m4(float R[4][4]);
 bool invert_m4_m4(float R[4][4], const float A[4][4]);
diff --git a/source/blender/blenlib/BLI_math_rotation.hh b/source/blender/blenlib/BLI_math_rotation.hh
index e8b746b34df..50a062162ad 100644
--- a/source/blender/blenlib/BLI_math_rotation.hh
+++ b/source/blender/blenlib/BLI_math_rotation.hh
@@ -15,4 +15,13 @@ namespace blender::math {
  */
 float3 rotate_direction_around_axis(const float3 &direction, const float3 &axis, float angle);
 
+/**
+ * Rotate any arbitrary \a vector around the \a center position, with a unit-length \a axis
+ * and the specified \a angle.
+ */
+float3 rotate_around_axis(const float3 &vector,
+                          const float3 &center,
+                          const float3 &axis,
+                          float angle);
+
 }  // namespace blender::math
diff --git a/source/blender/blenlib/CMakeLists.txt b/source/blender/blenlib/CMakeLists.txt
index 95b4987596e..d39a586206f 100644
--- a/source/blender/blenlib/CMakeLists.txt
+++ b/source/blender/blenlib/CMakeLists.txt
@@ -424,6 +424,7 @@ if(WITH_GTESTS)
     tests/BLI_array_store_test.cc
     tests/BLI_array_test.cc
     tests/BLI_array_utils_test.cc
+    tests/BLI_bitmap_test.cc
     tests/BLI_bounds_test.cc
     tests/BLI_color_test.cc
     tests/BLI_cpp_type_test.cc
diff --git a/source/blender/blenlib/intern/bitmap.c b/source/blender/blenlib/intern/bitmap.c
index 7fcbc31c066..2cc2fbc3e2f 100644
--- a/source/blender/blenlib/intern/bitmap.c
+++ b/source/blender/blenlib/intern/bitmap.c
@@ -11,6 +11,7 @@
 #include <string.h>
 
 #include "BLI_bitmap.h"
+#include "BLI_math_bits.h"
 #include "BLI_utildefines.h"
 
 void BLI_bitmap_set_all(BLI_bitmap *bitmap, bool set, size_t bits)
@@ -46,3 +47,22 @@ void BLI_bitmap_or_all(BLI_bitmap *dst, const BLI_bitmap *src, size_t bits)
     dst[i] |= src[i];
   }
 }
+
+int BLI_bitmap_find_first_unset(const BLI_bitmap *bitmap, const size_t bits)
+{
+  const size_t blocks_num = _BITMAP_NUM_BLOCKS(bits);
+  int result = -1;
+  /* Skip over completely set blocks. */
+  int index = 0;
+  while (index < blocks_num && bitmap[index] == ~0u) {
+    index++;
+  }
+  if (index < blocks_num) {
+    /* Found a partially used block: find the lowest unused bit. */
+    const uint m = ~bitmap[index];
+    BLI_assert(m != 0);
+    const uint bit_index = bitscan_forward_uint(m);
+    result = bit_index + (index << _BITMAP_POWER);
+  }
+  return result;
+}
diff --git a/source/blender/blenlib/intern/filereader_zstd.c b/source/blender/blenlib/intern/filereader_zstd.c
index 5f114f24fb0..aeb000e9754 100644
--- a/source/blender/blenlib/intern/filereader_zstd.c
+++ b/source/blender/blenlib/intern/filereader_zstd.c
@@ -281,7 +281,10 @@ static void zstd_close(FileReader *reader)
   if (zstd->reader.seek) {
     MEM_freeN(zstd->seek.uncompressed_ofs);
     MEM_freeN(zstd->seek.compressed_ofs);
-    MEM_freeN(zstd->seek.cached_content);
+    /* When an error has occurred this may be NULL, see: T99744. */
+    if (zstd->seek.cached_content) {
+      MEM_freeN(zstd->seek.cached_content);
+    }
   }
   else {
     MEM_freeN((void *)zstd->in_buf.src);
diff --git a/source/blender/blenlib/intern/generic_virtual_array.cc b/source/blender/blenlib/intern/generic_virtual_array.cc
index 28bc66e8524..1e548d006b2 100644
--- a/source/blender/blenlib/intern/generic_virtual_array.cc
+++ b/source/blender/blenlib/intern/generic_virtual_array.cc
@@ -323,6 +323,7 @@ GVArraySpan::GVArraySpan(GVArraySpan &&other)
   else {
     data_ = owned_data_;
   }
+  other.owned_data_ = nullptr;
   other.data_ = nullptr;
   other.size_ = 0;
 }
@@ -393,6 +394,7 @@ GMutableVArraySpan::GMutableVArraySpan(GMutableVArraySpan &&other)
   else {
     data_ = owned_data_;
   }
+  other.owned_data_ = nullptr;
   other.data_ = nullptr;
   other.size_ = 0;
 }
diff --git a/source/blender/blenlib/intern/index_mask.cc b/source/blender/blenlib/intern/index_mask.cc
index f3590e4a41c..e9af183d60d 100644
--- a/source/blender/blenlib/intern/index_mask.cc
+++ b/source/blender/blenlib/intern/index_mask.cc
@@ -142,6 +142,7 @@ IndexMask find_indices_based_on_predicate__merge(
   int64_t result_mask_size = 0;
   for (Vector<Vector<int64_t>> &local_sub_masks : sub_masks) {
     for (Vector<int64_t> &sub_mask : local_sub_masks) {
+      BLI_assert(!sub_mask.is_empty());
       all_vectors.append(&sub_mask);
       result_mask_size += sub_mask.size();
     }
@@ -232,7 +233,9 @@ IndexMask find_indices_from_virtual_array(const IndexMask indices_to_check,
             }
           }
         });
-        sub_masks.local().append(std::move(masked_indices));
+        if (!masked_indices.is_empty()) {
+          sub_masks.local().append(std::move(masked_indices));
+        }
       });
 
   return detail::find_indices_based_on_predicate__merge(indices_to_check, sub_masks, r_indices);
diff --git a/source/blender/blenlib/intern/math_matrix.c b/source/blender/blenlib/intern/math_matrix.c
index ce9abc36cad..fcd017b3082 100644
--- a/source/blender/blenlib/intern/math_matrix.c
+++ b/source/blender/blenlib/intern/math_matrix.c
@@ -1116,6 +1116,22 @@ double determinant_m3_array_db(const double m[3][3])
           m[2][0] * (m[0][1] * m[1][2] - m[0][2] * m[1][1]));
 }
 
+bool invert_m2_m2(float m1[2][2], const float m2[2][2])
+{
+  adjoint_m2_m2(m1, m2);
+  float det = determinant_m2(m2[0][0], m2[1][0], m2[0][1], m2[1][1]);
+
+  bool success = (det != 0.0f);
+  if (success) {
+    m1[0][0] /= det;
+    m1[1][0] /= det;
+    m1[0][1] /= det;
+    m1[1][1] /= det;
+  }
+
+  return success;
+}
+
 bool invert_m3_ex(float m[3][3], const float epsilon)
 {
   float tmp[3][3];
diff --git a/source/blender/blenlib/intern/math_rotation.cc b/source/blender/blenlib/intern/math_rotation.cc
index 74300d55954..091e8af85d9 100644
--- a/source/blender/blenlib/intern/math_rotation.cc
+++ b/source/blender/blenlib/intern/math_rotation.cc
@@ -23,4 +23,17 @@ float3 rotate_direction_around_axis(const float3 &direction, const float3 &axis,
   return axis_scaled + diff * std::cos(angle) + cross * std::sin(angle);
 }
 
+float3 rotate_around_axis(const float3 &vector,
+                          const float3 &center,
+                          const float3 &axis,
+                          const float angle)
+
+{
+  float3 result = vector - center;
+  float mat[3][3];
+  axis_angle_normalized_to_mat3(mat, axis, angle);
+  mul_m3_v3(mat, result);
+  return result + center;
+}
+
 }  // namespace blender::math
diff --git a/source/blender/blenlib/intern/rct.c b/source/blender/blenlib/intern/rct.c
index 0bb606c288e..7248db5b718 100644
--- a/source/blender/blenlib/intern/rct.c
+++ b/source/blender/blenlib/intern/rct.c
@@ -265,7 +265,7 @@ bool BLI_rcti_isect_segment(const rcti *rect, const int s1[2], const int s2[2])
   /* diagonal: [/] */
   tvec1[0] = rect->xmin;
   tvec1[1] = rect->ymin;
-  tvec2[0] = rect->xmin;
+  tvec2[0] = rect->xmax;
   tvec2[1] = rect->ymax;
   if (isect_segments_i(s1, s2, tvec1, tvec2)) {
     return true;
@@ -311,7 +311,7 @@ bool BLI_rctf_isect_segment(const rctf *rect, const float s1[2], const float s2[
   /* diagonal: [/] */
   tvec1[0] = rect->xmin;
   tvec1[1] = rect->ymin;
-  tvec2[0] = rect->xmin;
+  tvec2[0] = rect->xmax;
   tvec2[1] = rect->ymax;
   if (isect_segments_fl(s1, s2, tvec1, tvec2)) {
     return true;
diff --git a/source/blender/blenlib/tests/BLI_bitmap_test.cc b/source/blender/blenlib/tests/BLI_bitmap_test.cc
new file mode 100644
index 00000000000..fb9e03e3136
--- /dev/null
+++ b/source/blender/blenlib/tests/BLI_bitmap_test.cc
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+#include "BLI_bitmap.h"
+#include "testing/testing.h"
+
+namespace blender::tests {
+
+TEST(bitmap, empty_is_all_unset)
+{
+  BLI_BITMAP_DECLARE(bitmap, 10);
+  for (int i = 0; i < 10; ++i) {
+    EXPECT_FALSE(BLI_BITMAP_TEST_BOOL(bitmap, i));
+  }
+}
+
+TEST(bitmap, find_first_unset_empty)
+{
+  BLI_BITMAP_DECLARE(bitmap, 10);
+  EXPECT_EQ(0, BLI_bitmap_find_first_unset(bitmap, 10));
+}
+
+TEST(bitmap, find_first_unset_full)
+{
+  BLI_BITMAP_DECLARE(bitmap, 10);
+  BLI_bitmap_flip_all(bitmap, 10);
+  EXPECT_EQ(-1, BLI_bitmap_find_first_unset(bitmap, 10));
+}
+
+TEST(bitmap, find_first_unset_middle)
+{
+  BLI_BITMAP_DECLARE(bitmap, 100);
+  BLI_bitmap_flip_all(bitmap, 100);
+  /* Turn some bits off */
+  BLI_BITMAP_DISABLE(bitmap, 53);
+  BLI_BITMAP_DISABLE(bitmap, 81);
+  BLI_BITMAP_DISABLE(bitmap, 85);
+  BLI_BITMAP_DISABLE(bitmap, 86);
+
+  /* Find lowest unset bit, and set it. */
+  EXPECT_EQ(53, BLI_bitmap_find_first_unset(bitmap, 100));
+  BLI_BITMAP_ENABLE(bitmap, 53);
+  /* Now should find the next lowest bit. */
+  EXPECT_EQ(81, BLI_bitmap_find_first_unset(bitmap, 100));
+}
+
+}  // namespace blender::tests
diff --git a/source/blender/blenlib/tests/BLI_index_range_test.cc b/source/blender/blenlib/tests/BLI_index_range_test.cc
index 10f6784cd44..f5b994d409a 100644
--- a/source/blender/blenlib/tests/BLI_index_range_test.cc
+++ b/source/blender/blenlib/tests/BLI_index_range_test.cc
@@ -105,6 +105,12 @@ TEST(index_range, OneAfterEnd)
   EXPECT_EQ(range.one_after_last(), 8);
 }
 
+TEST(index_range, OneBeforeStart)
+{
+  IndexRange range = IndexRange(5, 3);
+  EXPECT_EQ(range.one_before_start(), 4);
+}
+
 TEST(index_range, Start)
 {
   IndexRange range = IndexRange(6, 2);
diff --git a/source/blender/blenloader/intern/versioning_legacy.c b/source/blender/blenloader/intern/versioning_legacy.c
index a3f17878f68..75cc333e4b5 100644
--- a/source/blender/blenloader/intern/versioning_legacy.c
+++ b/source/blender/blenloader/intern/versioning_legacy.c
@@ -1468,7 +1468,7 @@ void blo_do_versions_pre250(FileData *fd, Library *lib, Main *bmain)
 
     for (me = bmain->meshes.first; me; me = me->id.next) {
       if (!me->medge) {
-        BKE_mesh_calc_edges_legacy(me, true); /* true = use mface->edcode */
+        BKE_mesh_calc_edges_legacy(me, true); /* true = use #MFace.edcode. */
       }
       else {
         BKE_mesh_strip_loose_faces(me);
diff --git a/source/blender/bmesh/intern/bmesh_log.c b/source/blender/bmesh/intern/bmesh_log.c
index a81ae934629..64e6c63e9f0 100644
--- a/source/blender/bmesh/intern/bmesh_log.c
+++ b/source/blender/bmesh/intern/bmesh_log.c
@@ -34,42 +34,41 @@
 struct BMLogEntry {
   struct BMLogEntry *next, *prev;
 
-  /* The following GHashes map from an element ID to one of the log
-   * types above */
+  /* The following #GHash members map from an element ID to one of the log types above. */
 
-  /* Elements that were in the previous entry, but have been
-   * deleted */
+  /** Elements that were in the previous entry, but have been deleted. */
   GHash *deleted_verts;
   GHash *deleted_faces;
-  /* Elements that were not in the previous entry, but are in the
-   * result of this entry */
+  /** Elements that were not in the previous entry, but are in the result of this entry. */
   GHash *added_verts;
   GHash *added_faces;
 
-  /* Vertices whose coordinates, mask value, or hflag have changed */
+  /** Vertices whose coordinates, mask value, or hflag have changed. */
   GHash *modified_verts;
   GHash *modified_faces;
 
   BLI_mempool *pool_verts;
   BLI_mempool *pool_faces;
 
-  /* This is only needed for dropping BMLogEntries while still in
+  /**
+   * This is only needed for dropping BMLogEntries while still in
    * dynamic-topology mode, as that should release vert/face IDs
-   * back to the BMLog but no BMLog pointer is available at that
-   * time.
+   * back to the BMLog but no BMLog pointer is available at that time.
    *
    * This field is not guaranteed to be valid, any use of it should
-   * check for NULL. */
+   * check for NULL.
+   */
   BMLog *log;
 };
 
 struct BMLog {
-  /* Tree of free IDs */
+  /** Tree of free IDs */
   struct RangeTreeUInt *unused_ids;
 
-  /* Mapping from unique IDs to vertices and faces
+  /**
+   * Mapping from unique IDs to vertices and faces
    *
-   * Each vertex and face in the log gets a unique uinteger
+   * Each vertex and face in the log gets a unique `uint`
    * assigned. That ID is taken from the set managed by the
    * unused_ids range tree.
    *
@@ -79,10 +78,11 @@ struct BMLog {
   GHash *id_to_elem;
   GHash *elem_to_id;
 
-  /* All BMLogEntrys, ordered from earliest to most recent */
+  /** All #BMLogEntrys, ordered from earliest to most recent. */
   ListBase entries;
 
-  /* The current log entry from entries list
+  /**
+   * The current log entry from entries list
    *
    * If null, then the original mesh from before any of the log
    * entries is current (i.e. there is nothing left to undo.)
diff --git a/source/blender/bmesh/intern/bmesh_log.h b/source/blender/bmesh/intern/bmesh_log.h
index 189aa97509f..5daa5dd9a68 100644
--- a/source/blender/bmesh/intern/bmesh_log.h
+++ b/source/blender/bmesh/intern/bmesh_log.h
@@ -14,12 +14,13 @@ struct RangeTreeUInt;
 typedef struct BMLog BMLog;
 typedef struct BMLogEntry BMLogEntry;
 
-/* Allocate and initialize a new BMLog */
-/* Allocate, initialize, and assign a new BMLog */
+/**
+ * Allocate, initialize, and assign a new BMLog.
+ */
 BMLog *BM_log_create(BMesh *bm);
 
-/* Allocate and initialize a new BMLog using existing BMLogEntries */
-/* Allocate and initialize a new BMLog using existing BMLogEntries
+/**
+ * Allocate and initialize a new #BMLog using existing #BMLogEntries
  *
  * The 'entry' should be the last entry in the BMLog. Its prev pointer
  * will be followed back to find the first entry.
@@ -29,20 +30,21 @@ BMLog *BM_log_create(BMesh *bm);
  */
 BMLog *BM_log_from_existing_entries_create(BMesh *bm, BMLogEntry *entry);
 
-/* Free all the data in a BMLog including the log itself */
-/* Free all the data in a BMLog including the log itself */
+/**
+ * Free all the data in a BMLog including the log itself.
+ */
 void BM_log_free(BMLog *log);
 
-/* Get the number of log entries */
-/* Get the number of log entries */
+/**
+ * Get the number of log entries.
+ */
 int BM_log_length(const BMLog *log);
 
-/* Apply a consistent ordering to BMesh vertices and faces */
-/* Apply a consistent ordering to BMesh vertices */
+/** Apply a consistent ordering to BMesh vertices and faces. */
 void BM_log_mesh_elems_reorder(BMesh *bm, BMLog *log);
 
-/* Start a new log entry and update the log entry list */
-/* Start a new log entry and update the log entry list
+/**
+ * Start a new log entry and update the log entry list.
  *
  * If the log entry list is empty, or if the current log entry is the
  * last entry, the new entry is simply appended to the end.
@@ -54,35 +56,36 @@ void BM_log_mesh_elems_reorder(BMesh *bm, BMLog *log);
  */
 BMLogEntry *BM_log_entry_add(BMLog *log);
 
-/* Mark all used ids as unused for this node */
+/** Mark all used ids as unused for this node */
 void BM_log_cleanup_entry(BMLogEntry *entry);
 
-/* Remove an entry from the log */
-/* Remove an entry from the log
+/**
+ * Remove an entry from the log.
  *
  * Uses entry->log as the log. If the log is NULL, the entry will be
- * free'd but not removed from any list, nor shall its IDs be
- * released.
+ * free'd but not removed from any list, nor shall its IDs be released.
  *
  * This operation is only valid on the first and last entries in the
  * log. Deleting from the middle will assert.
  */
 void BM_log_entry_drop(BMLogEntry *entry);
 
-/* Undo one BMLogEntry */
-/* Undo one BMLogEntry
+/**
+ * Undo one #BMLogEntry.
  *
- * Has no effect if there's nothing left to undo */
+ * Has no effect if there's nothing left to undo.
+ */
 void BM_log_undo(BMesh *bm, BMLog *log);
 
-/* Redo one BMLogEntry */
-/* Redo one BMLogEntry
+/**
+ * Redo one #BMLogEntry.
  *
- * Has no effect if there's nothing left to redo */
+ * Has no effect if there's nothing left to redo.
+ */
 void BM_log_redo(BMesh *bm, BMLog *log);
 
-/* Log a vertex before it is modified */
-/* Log a vertex before it is modified
+/**
+ * Log a vertex before it is modified.
  *
  * Before modifying vertex coordinates, masks, or hflags, call this
  * function to log its current values. This is better than logging
@@ -107,8 +110,8 @@ void BM_log_redo(BMesh *bm, BMLog *log);
  */
 void BM_log_vert_before_modified(BMLog *log, struct BMVert *v, int cd_vert_mask_offset);
 
-/* Log a new vertex as added to the BMesh */
-/* Log a new vertex as added to the BMesh
+/**
+ * Log a new vertex as added to the #BMesh.
  *
  * The new vertex gets a unique ID assigned. It is then added to a map
  * of added vertices, with the key being its ID and the value
@@ -116,16 +119,16 @@ void BM_log_vert_before_modified(BMLog *log, struct BMVert *v, int cd_vert_mask_
  */
 void BM_log_vert_added(BMLog *log, struct BMVert *v, int cd_vert_mask_offset);
 
-/* Log a face before it is modified */
-/* Log a face before it is modified
+/**
+ * Log a face before it is modified.
  *
  * This is intended to handle only header flags and we always
- * assume face has been added before
+ * assume face has been added before.
  */
 void BM_log_face_modified(BMLog *log, struct BMFace *f);
 
-/* Log a new face as added to the BMesh */
-/* Log a new face as added to the BMesh
+/**
+ * Log a new face as added to the #BMesh.
  *
  * The new face gets a unique ID assigned. It is then added to a map
  * of added faces, with the key being its ID and the value containing
@@ -133,8 +136,8 @@ void BM_log_face_modified(BMLog *log, struct BMFace *f);
  */
 void BM_log_face_added(BMLog *log, struct BMFace *f);
 
-/* Log a vertex as removed from the BMesh */
-/* Log a vertex as removed from the BMesh
+/**
+ * Log a vertex as removed from the #BMesh.
  *
  * A couple things can happen here:
  *
@@ -142,7 +145,7 @@ void BM_log_face_added(BMLog *log, struct BMFace *f);
  * deleted and forgotten about entirely. Its unique ID is returned to
  * the unused pool.
  *
- * If the vertex was already part of the BMesh before the current log
+ * If the vertex was already part of the #BMesh before the current log
  * entry, it is added to a map of deleted vertices, with the key being
  * its ID and the value containing everything needed to reconstruct
  * that vertex.
@@ -152,8 +155,8 @@ void BM_log_face_added(BMLog *log, struct BMFace *f);
  */
 void BM_log_vert_removed(BMLog *log, struct BMVert *v, int cd_vert_mask_offset);
 
-/* Log a face as removed from the BMesh */
-/* Log a face as removed from the BMesh
+/**
+ * Log a face as removed from the #BMesh.
  *
  * A couple things can happen here:
  *
@@ -161,43 +164,45 @@ void BM_log_vert_removed(BMLog *log, struct BMVert *v, int cd_vert_mask_offset);
  * deleted and forgotten about entirely. Its unique ID is returned to
  * the unused pool.
  *
- * If the face was already part of the BMesh before the current log
+ * If the face was already part of the #BMesh before the current log
  * entry, it is added to a map of deleted faces, with the key being
  * its ID and the value containing everything needed to reconstruct
  * that face.
  */
 void BM_log_face_removed(BMLog *log, struct BMFace *f);
 
-/* Log all vertices/faces in the BMesh as added */
-/* Log all vertices/faces in the BMesh as added */
+/**
+ * Log all vertices/faces in the #BMesh as added.
+ */
 void BM_log_all_added(BMesh *bm, BMLog *log);
 
-/* Log all vertices/faces in the BMesh as removed */
-/* Log all vertices/faces in the BMesh as removed */
+/** Log all vertices/faces in the #BMesh as removed. */
 void BM_log_before_all_removed(BMesh *bm, BMLog *log);
 
-/* Get the logged coordinates of a vertex */
-/* Get the logged coordinates of a vertex
+/**
+ * Get the logged coordinates of a vertex.
  *
- * Does not modify the log or the vertex */
+ * Does not modify the log or the vertex.
+ */
 const float *BM_log_original_vert_co(BMLog *log, BMVert *v);
 
-/* Get the logged normal of a vertex
+/**
+ * Get the logged normal of a vertex
  *
- * Does not modify the log or the vertex */
+ * Does not modify the log or the vertex.
+ */
 const float *BM_log_original_vert_no(BMLog *log, BMVert *v);
 
-/* Get the logged mask of a vertex */
-/* Get the logged mask of a vertex
+/** Get the logged mask of a vertex
  *
- * Does not modify the log or the vertex */
+ * Does not modify the log or the vertex.
+ */
 float BM_log_original_mask(BMLog *log, BMVert *v);
 
-/* Get the logged data of a vertex (avoid multiple lookups) */
+/** Get the logged data of a vertex (avoid multiple lookups). */
 void BM_log_original_vert_data(BMLog *log, BMVert *v, const float **r_co, const float **r_no);
 
-/* For internal use only (unit testing) */
-/* For internal use only (unit testing) */
+/** For internal use only (unit testing). */
 BMLogEntry *BM_log_current_entry(BMLog *log);
-/* For internal use only (unit testing) */
+/** For internal use only (unit testing) */
 struct RangeTreeUInt *BM_log_unused_ids(BMLog *log);
diff --git a/source/blender/compositor/operations/COM_CompositorOperation.cc b/source/blender/compositor/operations/COM_CompositorOperation.cc
index e8b61ff229e..c0cc3fa1ba4 100644
--- a/source/blender/compositor/operations/COM_CompositorOperation.cc
+++ b/source/blender/compositor/operations/COM_CompositorOperation.cc
@@ -5,6 +5,7 @@
 
 #include "BKE_global.h"
 #include "BKE_image.h"
+#include "BKE_scene.h"
 
 #include "RE_pipeline.h"
 
@@ -164,8 +165,8 @@ void CompositorOperation::execute_region(rcti *rect, unsigned int /*tile_number*
      *                      Full frame
      */
 
-    int full_width = rd->xsch * rd->size / 100;
-    int full_height = rd->ysch * rd->size / 100;
+    int full_width, full_height;
+    BKE_render_resolution(rd, false, &full_width, &full_height);
 
     dx = rd->border.xmin * full_width - (full_width - this->get_width()) / 2.0f;
     dy = rd->border.ymin * full_height - (full_height - this->get_height()) / 2.0f;
@@ -214,8 +215,8 @@ void CompositorOperation::update_memory_buffer_partial(MemoryBuffer *UNUSED(outp
 
 void CompositorOperation::determine_canvas(const rcti &UNUSED(preferred_area), rcti &r_area)
 {
-  int width = rd_->xsch * rd_->size / 100;
-  int height = rd_->ysch * rd_->size / 100;
+  int width, height;
+  BKE_render_resolution(rd_, false, &width, &height);
 
   /* Check actual render resolution with cropping it may differ with cropped border.rendering
    * Fix for T31777 Border Crop gives black (easy). */
diff --git a/source/blender/compositor/operations/COM_OutputFileMultiViewOperation.cc b/source/blender/compositor/operations/COM_OutputFileMultiViewOperation.cc
index 341541b4cdd..760ed94f882 100644
--- a/source/blender/compositor/operations/COM_OutputFileMultiViewOperation.cc
+++ b/source/blender/compositor/operations/COM_OutputFileMultiViewOperation.cc
@@ -21,7 +21,7 @@ OutputOpenExrSingleLayerMultiViewOperation::OutputOpenExrSingleLayerMultiViewOpe
     const RenderData *rd,
     const bNodeTree *tree,
     DataType datatype,
-    ImageFormatData *format,
+    const ImageFormatData *format,
     const char *path,
     const char *view_name,
     const bool save_as_render)
@@ -243,7 +243,7 @@ OutputStereoOperation::OutputStereoOperation(const Scene *scene,
                                              const RenderData *rd,
                                              const bNodeTree *tree,
                                              DataType datatype,
-                                             ImageFormatData *format,
+                                             const ImageFormatData *format,
                                              const char *path,
                                              const char *name,
                                              const char *view_name,
diff --git a/source/blender/compositor/operations/COM_OutputFileMultiViewOperation.h b/source/blender/compositor/operations/COM_OutputFileMultiViewOperation.h
index 69f4011d340..e36999e5cf1 100644
--- a/source/blender/compositor/operations/COM_OutputFileMultiViewOperation.h
+++ b/source/blender/compositor/operations/COM_OutputFileMultiViewOperation.h
@@ -22,7 +22,7 @@ class OutputOpenExrSingleLayerMultiViewOperation : public OutputSingleLayerOpera
                                              const RenderData *rd,
                                              const bNodeTree *tree,
                                              DataType datatype,
-                                             ImageFormatData *format,
+                                             const ImageFormatData *format,
                                              const char *path,
                                              const char *view_name,
                                              bool save_as_render);
@@ -57,7 +57,7 @@ class OutputStereoOperation : public OutputSingleLayerOperation {
                         const RenderData *rd,
                         const bNodeTree *tree,
                         DataType datatype,
-                        struct ImageFormatData *format,
+                        const struct ImageFormatData *format,
                         const char *path,
                         const char *name,
                         const char *view_name,
diff --git a/source/blender/compositor/operations/COM_OutputFileOperation.cc b/source/blender/compositor/operations/COM_OutputFileOperation.cc
index 49de275c256..1d22f3e8cd2 100644
--- a/source/blender/compositor/operations/COM_OutputFileOperation.cc
+++ b/source/blender/compositor/operations/COM_OutputFileOperation.cc
@@ -204,7 +204,7 @@ OutputSingleLayerOperation::OutputSingleLayerOperation(const Scene *scene,
                                                        const RenderData *rd,
                                                        const bNodeTree *tree,
                                                        DataType datatype,
-                                                       ImageFormatData *format,
+                                                       const ImageFormatData *format,
                                                        const char *path,
                                                        const char *view_name,
                                                        const bool save_as_render)
diff --git a/source/blender/compositor/operations/COM_OutputFileOperation.h b/source/blender/compositor/operations/COM_OutputFileOperation.h
index 875defe00e9..df1d68838d9 100644
--- a/source/blender/compositor/operations/COM_OutputFileOperation.h
+++ b/source/blender/compositor/operations/COM_OutputFileOperation.h
@@ -35,7 +35,7 @@ class OutputSingleLayerOperation : public MultiThreadedOperation {
                              const RenderData *rd,
                              const bNodeTree *tree,
                              DataType datatype,
-                             ImageFormatData *format,
+                             const ImageFormatData *format,
                              const char *path,
                              const char *view_name,
                              bool save_as_render);
diff --git a/source/blender/compositor/operations/COM_RenderLayersProg.cc b/source/blender/compositor/operations/COM_RenderLayersProg.cc
index 522086658f8..40f2187b27b 100644
--- a/source/blender/compositor/operations/COM_RenderLayersProg.cc
+++ b/source/blender/compositor/operations/COM_RenderLayersProg.cc
@@ -109,8 +109,8 @@ void RenderLayersProg::execute_pixel_sampled(float output[4],
     /* see comment in execute_region describing coordinate mapping,
      * here it simply goes other way around
      */
-    int full_width = rd->xsch * rd->size / 100;
-    int full_height = rd->ysch * rd->size / 100;
+    int full_width, full_height;
+    BKE_render_resolution(rd, false, &full_width, &full_height);
 
     dx = rd->border.xmin * full_width - (full_width - this->get_width()) / 2.0f;
     dy = rd->border.ymin * full_height - (full_height - this->get_height()) / 2.0f;
diff --git a/source/blender/compositor/operations/COM_TextureOperation.cc b/source/blender/compositor/operations/COM_TextureOperation.cc
index 8b27c3aded4..c1c8db2ae3f 100644
--- a/source/blender/compositor/operations/COM_TextureOperation.cc
+++ b/source/blender/compositor/operations/COM_TextureOperation.cc
@@ -6,6 +6,7 @@
 
 #include "BKE_image.h"
 #include "BKE_node.h"
+#include "BKE_scene.h"
 
 #include "NOD_texture.h"
 
@@ -59,8 +60,8 @@ void TextureBaseOperation::determine_canvas(const rcti &preferred_area, rcti &r_
 {
   r_area = preferred_area;
   if (BLI_rcti_is_empty(&preferred_area)) {
-    int width = rd_->xsch * rd_->size / 100;
-    int height = rd_->ysch * rd_->size / 100;
+    int width, height;
+    BKE_render_resolution(rd_, false, &width, &height);
     r_area.xmax = preferred_area.xmin + width;
     r_area.ymax = preferred_area.ymin + height;
   }
diff --git a/source/blender/compositor/operations/COM_ViewerOperation.cc b/source/blender/compositor/operations/COM_ViewerOperation.cc
index 58392b8a638..aeadf8f255d 100644
--- a/source/blender/compositor/operations/COM_ViewerOperation.cc
+++ b/source/blender/compositor/operations/COM_ViewerOperation.cc
@@ -104,8 +104,8 @@ void ViewerOperation::execute_region(rcti *rect, unsigned int /*tile_number*/)
 
 void ViewerOperation::determine_canvas(const rcti &preferred_area, rcti &r_area)
 {
-  const int scene_render_width = rd_->xsch * rd_->size / 100;
-  const int scene_render_height = rd_->ysch * rd_->size / 100;
+  int scene_render_width, scene_render_height;
+  BKE_render_resolution(rd_, false, &scene_render_width, &scene_render_height);
 
   rcti local_preferred = preferred_area;
   local_preferred.xmax = local_preferred.xmin + scene_render_width;
diff --git a/source/blender/depsgraph/intern/builder/deg_builder.cc b/source/blender/depsgraph/intern/builder/deg_builder.cc
index a3cd821e82f..1fec1fb3219 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder.cc
@@ -63,7 +63,7 @@ DepsgraphBuilder::DepsgraphBuilder(Main *bmain, Depsgraph *graph, DepsgraphBuild
 {
 }
 
-bool DepsgraphBuilder::need_pull_base_into_graph(Base *base)
+bool DepsgraphBuilder::need_pull_base_into_graph(const Base *base)
 {
   /* Simple check: enabled bases are always part of dependency graph. */
   const int base_flag = (graph_->mode == DAG_EVAL_VIEWPORT) ? BASE_ENABLED_VIEWPORT :
@@ -74,7 +74,7 @@ bool DepsgraphBuilder::need_pull_base_into_graph(Base *base)
   /* More involved check: since we don't support dynamic changes in dependency graph topology and
    * all visible objects are to be part of dependency graph, we pull all objects which has animated
    * visibility. */
-  Object *object = base->object;
+  const Object *object = base->object;
   AnimatedPropertyID property_id;
   if (graph_->mode == DAG_EVAL_VIEWPORT) {
     property_id = AnimatedPropertyID(&object->id, &RNA_Object, "hide_viewport");
@@ -89,7 +89,7 @@ bool DepsgraphBuilder::need_pull_base_into_graph(Base *base)
   return cache_->isPropertyAnimated(&object->id, property_id);
 }
 
-bool DepsgraphBuilder::check_pchan_has_bbone(Object *object, const bPoseChannel *pchan)
+bool DepsgraphBuilder::check_pchan_has_bbone(const Object *object, const bPoseChannel *pchan)
 {
   BLI_assert(object->type == OB_ARMATURE);
   if (pchan == nullptr || pchan->bone == nullptr) {
@@ -109,12 +109,13 @@ bool DepsgraphBuilder::check_pchan_has_bbone(Object *object, const bPoseChannel
          cache_->isPropertyAnimated(&armature->id, property_id);
 }
 
-bool DepsgraphBuilder::check_pchan_has_bbone_segments(Object *object, const bPoseChannel *pchan)
+bool DepsgraphBuilder::check_pchan_has_bbone_segments(const Object *object,
+                                                      const bPoseChannel *pchan)
 {
   return check_pchan_has_bbone(object, pchan);
 }
 
-bool DepsgraphBuilder::check_pchan_has_bbone_segments(Object *object, const char *bone_name)
+bool DepsgraphBuilder::check_pchan_has_bbone_segments(const Object *object, const char *bone_name)
 {
   const bPoseChannel *pchan = BKE_pose_channel_find_name(object->pose, bone_name);
   return check_pchan_has_bbone_segments(object, pchan);
@@ -138,19 +139,6 @@ void deg_graph_build_flush_visibility(Depsgraph *graph)
   for (IDNode *id_node : graph->id_nodes) {
     for (ComponentNode *comp_node : id_node->components.values()) {
       comp_node->affects_directly_visible |= id_node->is_directly_visible;
-
-      /* Enforce "visibility" of the synchronization component.
-       *
-       * This component is never connected to other ID nodes, and hence can not be handled in the
-       * same way as other components needed for evaluation. It is only needed for proper
-       * evaluation of the ID node it belongs to.
-       *
-       * The design is such that the synchronization is supposed to happen whenever any part of the
-       * ID changed/evaluated. Here we mark the component as "visible" so that genetic recalc flag
-       * flushing and scheduling will handle the component in a generic manner. */
-      if (comp_node->type == NodeType::SYNCHRONIZATION) {
-        comp_node->affects_directly_visible = true;
-      }
     }
   }
 
diff --git a/source/blender/depsgraph/intern/builder/deg_builder.h b/source/blender/depsgraph/intern/builder/deg_builder.h
index 8fbe255ed9d..950ebfb35ba 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder.h
+++ b/source/blender/depsgraph/intern/builder/deg_builder.h
@@ -13,8 +13,7 @@ struct Main;
 struct Object;
 struct bPoseChannel;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 class DepsgraphBuilderCache;
@@ -23,11 +22,11 @@ class DepsgraphBuilder {
  public:
   virtual ~DepsgraphBuilder() = default;
 
-  virtual bool need_pull_base_into_graph(Base *base);
+  virtual bool need_pull_base_into_graph(const Base *base);
 
-  virtual bool check_pchan_has_bbone(Object *object, const bPoseChannel *pchan);
-  virtual bool check_pchan_has_bbone_segments(Object *object, const bPoseChannel *pchan);
-  virtual bool check_pchan_has_bbone_segments(Object *object, const char *bone_name);
+  virtual bool check_pchan_has_bbone(const Object *object, const bPoseChannel *pchan);
+  virtual bool check_pchan_has_bbone_segments(const Object *object, const bPoseChannel *pchan);
+  virtual bool check_pchan_has_bbone_segments(const Object *object, const char *bone_name);
 
  protected:
   /* NOTE: The builder does NOT take ownership over any of those resources. */
@@ -43,5 +42,4 @@ bool deg_check_id_in_depsgraph(const Depsgraph *graph, ID *id_orig);
 bool deg_check_base_in_depsgraph(const Depsgraph *graph, Base *base);
 void deg_graph_build_finalize(Main *bmain, Depsgraph *graph);
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_cache.cc b/source/blender/depsgraph/intern/builder/deg_builder_cache.cc
index 7f88f54fdca..6474f853390 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_cache.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_cache.cc
@@ -35,13 +35,13 @@ AnimatedPropertyID::AnimatedPropertyID(const PointerRNA &pointer_rna,
 {
 }
 
-AnimatedPropertyID::AnimatedPropertyID(ID *id, StructRNA *type, const char *property_name)
+AnimatedPropertyID::AnimatedPropertyID(const ID *id, StructRNA *type, const char *property_name)
     : data(id)
 {
   property_rna = RNA_struct_type_find_property(type, property_name);
 }
 
-AnimatedPropertyID::AnimatedPropertyID(ID * /*id*/,
+AnimatedPropertyID::AnimatedPropertyID(const ID * /*id*/,
                                        StructRNA *type,
                                        void *data,
                                        const char *property_name)
@@ -100,13 +100,13 @@ AnimatedPropertyStorage::AnimatedPropertyStorage() : is_fully_initialized(false)
 {
 }
 
-void AnimatedPropertyStorage::initializeFromID(DepsgraphBuilderCache *builder_cache, ID *id)
+void AnimatedPropertyStorage::initializeFromID(DepsgraphBuilderCache *builder_cache, const ID *id)
 {
   AnimatedPropertyCallbackData data;
-  RNA_id_pointer_create(id, &data.pointer_rna);
+  RNA_id_pointer_create(const_cast<ID *>(id), &data.pointer_rna);
   data.animated_property_storage = this;
   data.builder_cache = builder_cache;
-  BKE_fcurves_id_cb(id, animated_property_cb, &data);
+  BKE_fcurves_id_cb(const_cast<ID *>(id), animated_property_cb, &data);
 }
 
 void AnimatedPropertyStorage::tagPropertyAsAnimated(const AnimatedPropertyID &property_id)
@@ -147,13 +147,14 @@ DepsgraphBuilderCache::~DepsgraphBuilderCache()
   }
 }
 
-AnimatedPropertyStorage *DepsgraphBuilderCache::ensureAnimatedPropertyStorage(ID *id)
+AnimatedPropertyStorage *DepsgraphBuilderCache::ensureAnimatedPropertyStorage(const ID *id)
 {
   return animated_property_storage_map_.lookup_or_add_cb(
       id, []() { return new AnimatedPropertyStorage(); });
 }
 
-AnimatedPropertyStorage *DepsgraphBuilderCache::ensureInitializedAnimatedPropertyStorage(ID *id)
+AnimatedPropertyStorage *DepsgraphBuilderCache::ensureInitializedAnimatedPropertyStorage(
+    const ID *id)
 {
   AnimatedPropertyStorage *animated_property_storage = ensureAnimatedPropertyStorage(id);
   if (!animated_property_storage->is_fully_initialized) {
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_cache.h b/source/blender/depsgraph/intern/builder/deg_builder_cache.h
index 2d2bdeaf825..d85269c0f8b 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_cache.h
+++ b/source/blender/depsgraph/intern/builder/deg_builder_cache.h
@@ -17,8 +17,7 @@ struct ID;
 struct PointerRNA;
 struct PropertyRNA;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 class DepsgraphBuilderCache;
 
@@ -28,14 +27,14 @@ class AnimatedPropertyID {
   AnimatedPropertyID();
   AnimatedPropertyID(const PointerRNA *pointer_rna, const PropertyRNA *property_rna);
   AnimatedPropertyID(const PointerRNA &pointer_rna, const PropertyRNA *property_rna);
-  AnimatedPropertyID(ID *id, StructRNA *type, const char *property_name);
-  AnimatedPropertyID(ID *id, StructRNA *type, void *data, const char *property_name);
+  AnimatedPropertyID(const ID *id, StructRNA *type, const char *property_name);
+  AnimatedPropertyID(const ID *id, StructRNA *type, void *data, const char *property_name);
 
   uint64_t hash() const;
   friend bool operator==(const AnimatedPropertyID &a, const AnimatedPropertyID &b);
 
   /* Corresponds to PointerRNA.data. */
-  void *data;
+  const void *data;
   const PropertyRNA *property_rna;
 
   MEM_CXX_CLASS_ALLOC_FUNCS("AnimatedPropertyID");
@@ -45,7 +44,7 @@ class AnimatedPropertyStorage {
  public:
   AnimatedPropertyStorage();
 
-  void initializeFromID(DepsgraphBuilderCache *builder_cache, ID *id);
+  void initializeFromID(DepsgraphBuilderCache *builder_cache, const ID *id);
 
   void tagPropertyAsAnimated(const AnimatedPropertyID &property_id);
   void tagPropertyAsAnimated(const PointerRNA *pointer_rna, const PropertyRNA *property_rna);
@@ -59,7 +58,7 @@ class AnimatedPropertyStorage {
   bool is_fully_initialized;
 
   /* indexed by PointerRNA.data. */
-  Set<void *> animated_objects_set;
+  Set<const void *> animated_objects_set;
   Set<AnimatedPropertyID> animated_properties_set;
 
   MEM_CXX_CLASS_ALLOC_FUNCS("AnimatedPropertyStorage");
@@ -71,8 +70,8 @@ class DepsgraphBuilderCache {
   ~DepsgraphBuilderCache();
 
   /* Makes sure storage for animated properties exists and initialized for the given ID. */
-  AnimatedPropertyStorage *ensureAnimatedPropertyStorage(ID *id);
-  AnimatedPropertyStorage *ensureInitializedAnimatedPropertyStorage(ID *id);
+  AnimatedPropertyStorage *ensureAnimatedPropertyStorage(const ID *id);
+  AnimatedPropertyStorage *ensureInitializedAnimatedPropertyStorage(const ID *id);
 
   /* Shortcuts to go through ensureInitializedAnimatedPropertyStorage and its
    * isPropertyAnimated.
@@ -82,7 +81,7 @@ class DepsgraphBuilderCache {
    *
    * TODO(sergey): Technically, this makes this class something else than just a cache, but what is
    * the better name? */
-  template<typename... Args> bool isPropertyAnimated(ID *id, Args... args)
+  template<typename... Args> bool isPropertyAnimated(const ID *id, Args... args)
   {
     AnimatedPropertyStorage *animated_property_storage = ensureInitializedAnimatedPropertyStorage(
         id);
@@ -96,10 +95,9 @@ class DepsgraphBuilderCache {
     return animated_property_storage->isAnyPropertyAnimated(ptr);
   }
 
-  Map<ID *, AnimatedPropertyStorage *> animated_property_storage_map_;
+  Map<const ID *, AnimatedPropertyStorage *> animated_property_storage_map_;
 
   MEM_CXX_CLASS_ALLOC_FUNCS("DepsgraphBuilderCache");
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_cycle.h b/source/blender/depsgraph/intern/builder/deg_builder_cycle.h
index 8e94e0ae21f..83d25f8c23f 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_cycle.h
+++ b/source/blender/depsgraph/intern/builder/deg_builder_cycle.h
@@ -7,13 +7,11 @@
 
 #pragma once
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
 /* Detect and solve dependency cycles. */
 void deg_graph_detect_cycles(Depsgraph *graph);
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_map.h b/source/blender/depsgraph/intern/builder/deg_builder_map.h
index 50ebadeb382..2b2b4d089e9 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_map.h
+++ b/source/blender/depsgraph/intern/builder/deg_builder_map.h
@@ -11,8 +11,7 @@
 
 struct ID;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 class BuilderMap {
  public:
@@ -60,5 +59,4 @@ class BuilderMap {
   Map<ID *, int> id_tags_;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc b/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
index 657bc3eb25c..473dda2290c 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
@@ -174,15 +174,13 @@ IDNode *DepsgraphNodeBuilder::add_id_node(ID *id)
       ComponentNode *comp_cow = id_node->add_component(NodeType::COPY_ON_WRITE);
       OperationNode *op_cow = comp_cow->add_operation(
           [id_node](::Depsgraph *depsgraph) { deg_evaluate_copy_on_write(depsgraph, id_node); },
-          OperationCode::COPY_ON_WRITE,
-          "",
-          -1);
+          OperationCode::COPY_ON_WRITE);
       graph_->operations.append(op_cow);
     }
 
     ComponentNode *visibility_component = id_node->add_component(NodeType::VISIBILITY);
     OperationNode *visibility_operation = visibility_component->add_operation(
-        nullptr, OperationCode::OPERATION, "", -1);
+        nullptr, OperationCode::VISIBILITY);
     /* Pin the node so that it and its relations are preserved by the unused nodes/relations
      * deletion. This is mainly to make it easier to debug visibility. */
     visibility_operation->flag |= OperationFlag::DEPSOP_FLAG_PINNED;
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_nodes.h b/source/blender/depsgraph/intern/builder/deg_builder_nodes.h
index be9983edf85..18e28311132 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_nodes.h
+++ b/source/blender/depsgraph/intern/builder/deg_builder_nodes.h
@@ -50,8 +50,7 @@ struct bNodeTree;
 struct bPoseChannel;
 struct bSound;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct ComponentNode;
 struct Depsgraph;
@@ -306,5 +305,4 @@ class DepsgraphNodeBuilder : public DepsgraphBuilder {
   BuilderMap built_map_;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_pchanmap.h b/source/blender/depsgraph/intern/builder/deg_builder_pchanmap.h
index 2f98c8b419c..afb3a3c22bd 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_pchanmap.h
+++ b/source/blender/depsgraph/intern/builder/deg_builder_pchanmap.h
@@ -9,8 +9,7 @@
 
 #include "intern/depsgraph_type.h"
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct RootPChanMap {
   /** Debug contents of map. */
@@ -30,5 +29,4 @@ struct RootPChanMap {
   Map<StringRefNull, Set<StringRefNull>> map_;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
index 31d5308e825..4fe8a626af5 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
+++ b/source/blender/depsgraph/intern/builder/deg_builder_relations.cc
@@ -692,7 +692,7 @@ void DepsgraphRelationBuilder::build_object(Object *object)
 
   const BuilderStack::ScopedEntry stack_entry = stack_.trace(object->id);
 
-  /* Object Transforms */
+  /* Object Transforms. */
   OperationCode base_op = (object->parent) ? OperationCode::TRANSFORM_PARENT :
                                              OperationCode::TRANSFORM_LOCAL;
   OperationKey base_op_key(&object->id, NodeType::TRANSFORM, base_op);
@@ -705,9 +705,12 @@ void DepsgraphRelationBuilder::build_object(Object *object)
   OperationKey final_transform_key(
       &object->id, NodeType::TRANSFORM, OperationCode::TRANSFORM_FINAL);
   OperationKey ob_eval_key(&object->id, NodeType::TRANSFORM, OperationCode::TRANSFORM_EVAL);
+
   add_relation(init_transform_key, local_transform_key, "Transform Init");
+
   /* Various flags, flushing from bases/collections. */
   build_object_layer_component_relations(object);
+
   /* Parenting. */
   if (object->parent != nullptr) {
     /* Make sure parent object's relations are built. */
@@ -717,30 +720,35 @@ void DepsgraphRelationBuilder::build_object(Object *object)
     /* Local -> parent. */
     add_relation(local_transform_key, parent_transform_key, "ObLocal -> ObParent");
   }
+
   /* Modifiers. */
   if (object->modifiers.first != nullptr) {
     BuilderWalkUserData data;
     data.builder = this;
     BKE_modifiers_foreach_ID_link(object, modifier_walk, &data);
   }
+
   /* Grease Pencil Modifiers. */
   if (object->greasepencil_modifiers.first != nullptr) {
     BuilderWalkUserData data;
     data.builder = this;
     BKE_gpencil_modifiers_foreach_ID_link(object, modifier_walk, &data);
   }
+
   /* Shader FX. */
   if (object->shader_fx.first != nullptr) {
     BuilderWalkUserData data;
     data.builder = this;
     BKE_shaderfx_foreach_ID_link(object, modifier_walk, &data);
   }
+
   /* Constraints. */
   if (object->constraints.first != nullptr) {
     BuilderWalkUserData data;
     data.builder = this;
     BKE_constraints_id_loop(&object->constraints, constraint_walk, &data);
   }
+
   /* Object constraints. */
   OperationKey object_transform_simulation_init_key(
       &object->id, NodeType::TRANSFORM, OperationCode::TRANSFORM_SIMULATION_INIT);
@@ -767,30 +775,39 @@ void DepsgraphRelationBuilder::build_object(Object *object)
                  final_transform_key,
                  "Simulation -> Final Transform");
   }
+
   build_idproperties(object->id.properties);
+
   /* Animation data */
   build_animdata(&object->id);
+
   /* Object data. */
   build_object_data(object);
+
   /* Particle systems. */
   if (object->particlesystem.first != nullptr) {
     build_particle_systems(object);
   }
+
   /* Force field Texture. */
   if ((object->pd != nullptr) && (object->pd->forcefield == PFIELD_TEXTURE) &&
       (object->pd->tex != nullptr)) {
     build_texture(object->pd->tex);
   }
+
   /* Object dupligroup. */
   if (object->instance_collection != nullptr) {
     build_collection(nullptr, object, object->instance_collection);
   }
+
   /* Point caches. */
   build_object_pointcache(object);
+
   /* Synchronization back to original object. */
   OperationKey synchronize_key(
       &object->id, NodeType::SYNCHRONIZATION, OperationCode::SYNCHRONIZE_TO_ORIGINAL);
   add_relation(final_transform_key, synchronize_key, "Synchronize to Original");
+
   /* Parameters. */
   build_parameters(&object->id);
 }
@@ -2459,6 +2476,13 @@ void DepsgraphRelationBuilder::build_camera(Camera *camera)
     ComponentKey camera_parameters_key(&camera->id, NodeType::PARAMETERS);
     ComponentKey dof_ob_key(&camera->dof.focus_object->id, NodeType::TRANSFORM);
     add_relation(dof_ob_key, camera_parameters_key, "Camera DOF");
+    if (camera->dof.focus_subtarget[0]) {
+      OperationKey target_key(&camera->dof.focus_object->id,
+                              NodeType::BONE,
+                              camera->dof.focus_subtarget,
+                              OperationCode::BONE_DONE);
+      add_relation(target_key, camera_parameters_key, "Camera DOF subtarget");
+    }
   }
 }
 
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_relations.h b/source/blender/depsgraph/intern/builder/deg_builder_relations.h
index 64bdd2334d8..0cb0b60dfb0 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_relations.h
+++ b/source/blender/depsgraph/intern/builder/deg_builder_relations.h
@@ -70,8 +70,7 @@ struct bSound;
 
 struct PropertyRNA;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct ComponentNode;
 struct DepsNodeHandle;
@@ -381,7 +380,6 @@ struct DepsNodeHandle {
   const char *default_name;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
 
 #include "intern/builder/deg_builder_relations_impl.h"
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_relations_drivers.h b/source/blender/depsgraph/intern/builder/deg_builder_relations_drivers.h
index e517dd6a927..9860b17fd56 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_relations_drivers.h
+++ b/source/blender/depsgraph/intern/builder/deg_builder_relations_drivers.h
@@ -15,8 +15,7 @@
 
 struct FCurve;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 /* Helper class for determining which relations are needed between driver evaluation nodes. */
 class DriverDescriptor {
@@ -59,5 +58,4 @@ class DriverDescriptor {
   bool resolve_rna();
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_relations_impl.h b/source/blender/depsgraph/intern/builder/deg_builder_relations_impl.h
index aba4a011e72..76066ce97a7 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_relations_impl.h
+++ b/source/blender/depsgraph/intern/builder/deg_builder_relations_impl.h
@@ -15,8 +15,7 @@
 #include "DNA_object_types.h"
 #include "DNA_rigidbody_types.h"
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 template<typename KeyType>
 OperationNode *DepsgraphRelationBuilder::find_operation_node(const KeyType &key)
@@ -209,5 +208,4 @@ bool DepsgraphRelationBuilder::is_same_nodetree_node_dependency(const KeyFrom &k
   return true;
 }
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_remove_noop.h b/source/blender/depsgraph/intern/builder/deg_builder_remove_noop.h
index 922d2d7dc05..ad10eb7cd10 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_remove_noop.h
+++ b/source/blender/depsgraph/intern/builder/deg_builder_remove_noop.h
@@ -7,13 +7,11 @@
 
 #pragma once
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
 /* Remove all no-op nodes that have zero outgoing relations. */
 void deg_graph_remove_unused_noops(Depsgraph *graph);
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_rna.h b/source/blender/depsgraph/intern/builder/deg_builder_rna.h
index 4f482d4352d..9baa956bd80 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_rna.h
+++ b/source/blender/depsgraph/intern/builder/deg_builder_rna.h
@@ -14,8 +14,7 @@ struct ID;
 struct PointerRNA;
 struct PropertyRNA;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 struct Node;
@@ -94,5 +93,4 @@ class RNANodeQuery {
 
 bool rna_prop_affects_parameters_node(const PointerRNA *ptr, const PropertyRNA *prop);
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/deg_builder_transitive.h b/source/blender/depsgraph/intern/builder/deg_builder_transitive.h
index 8b208610203..63016431eec 100644
--- a/source/blender/depsgraph/intern/builder/deg_builder_transitive.h
+++ b/source/blender/depsgraph/intern/builder/deg_builder_transitive.h
@@ -7,13 +7,11 @@
 
 #pragma once
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
 /* Performs a transitive reduction to remove redundant relations. */
 void deg_graph_transitive_reduction(Depsgraph *graph);
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/pipeline.cc b/source/blender/depsgraph/intern/builder/pipeline.cc
index 540b8e173f1..815a06d03d1 100644
--- a/source/blender/depsgraph/intern/builder/pipeline.cc
+++ b/source/blender/depsgraph/intern/builder/pipeline.cc
@@ -90,7 +90,7 @@ void AbstractBuilderPipeline::build_step_finalize()
   }
 #endif
   /* Relations are up to date. */
-  deg_graph_->need_update = false;
+  deg_graph_->need_update_relations = false;
 }
 
 unique_ptr<DepsgraphNodeBuilder> AbstractBuilderPipeline::construct_node_builder()
diff --git a/source/blender/depsgraph/intern/builder/pipeline.h b/source/blender/depsgraph/intern/builder/pipeline.h
index b106e73b97c..7568aa78106 100644
--- a/source/blender/depsgraph/intern/builder/pipeline.h
+++ b/source/blender/depsgraph/intern/builder/pipeline.h
@@ -16,8 +16,7 @@ struct Main;
 struct Scene;
 struct ViewLayer;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 class DepsgraphNodeBuilder;
@@ -57,5 +56,4 @@ class AbstractBuilderPipeline {
   virtual void build_relations(DepsgraphRelationBuilder &relation_builder) = 0;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/pipeline_all_objects.cc b/source/blender/depsgraph/intern/builder/pipeline_all_objects.cc
index 74d151c65d7..6bc3b59a9d6 100644
--- a/source/blender/depsgraph/intern/builder/pipeline_all_objects.cc
+++ b/source/blender/depsgraph/intern/builder/pipeline_all_objects.cc
@@ -20,7 +20,7 @@ class AllObjectsNodeBuilder : public DepsgraphNodeBuilder {
   {
   }
 
-  bool need_pull_base_into_graph(Base * /*base*/) override
+  bool need_pull_base_into_graph(const Base * /*base*/) override
   {
     return true;
   }
@@ -33,7 +33,7 @@ class AllObjectsRelationBuilder : public DepsgraphRelationBuilder {
   {
   }
 
-  bool need_pull_base_into_graph(Base * /*base*/) override
+  bool need_pull_base_into_graph(const Base * /*base*/) override
   {
     return true;
   }
diff --git a/source/blender/depsgraph/intern/builder/pipeline_all_objects.h b/source/blender/depsgraph/intern/builder/pipeline_all_objects.h
index 75d9605dec7..fde5e7e2163 100644
--- a/source/blender/depsgraph/intern/builder/pipeline_all_objects.h
+++ b/source/blender/depsgraph/intern/builder/pipeline_all_objects.h
@@ -9,8 +9,7 @@
 
 #include "pipeline_view_layer.h"
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 /* Builds a dependency graph that contains all objects in the view layer.
  * This is contrary to the regular ViewLayerBuilderPipeline, which is limited to visible objects
@@ -24,5 +23,4 @@ class AllObjectsBuilderPipeline : public ViewLayerBuilderPipeline {
   virtual unique_ptr<DepsgraphRelationBuilder> construct_relation_builder() override;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/pipeline_compositor.h b/source/blender/depsgraph/intern/builder/pipeline_compositor.h
index 3325741c94a..304f2d4ec9a 100644
--- a/source/blender/depsgraph/intern/builder/pipeline_compositor.h
+++ b/source/blender/depsgraph/intern/builder/pipeline_compositor.h
@@ -11,8 +11,7 @@
 
 struct bNodeTree;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 class CompositorBuilderPipeline : public AbstractBuilderPipeline {
  public:
@@ -26,5 +25,4 @@ class CompositorBuilderPipeline : public AbstractBuilderPipeline {
   bNodeTree *nodetree_;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/pipeline_from_ids.cc b/source/blender/depsgraph/intern/builder/pipeline_from_ids.cc
index ee10b28a306..e256c8271f2 100644
--- a/source/blender/depsgraph/intern/builder/pipeline_from_ids.cc
+++ b/source/blender/depsgraph/intern/builder/pipeline_from_ids.cc
@@ -39,7 +39,7 @@ class DepsgraphFromIDsNodeBuilder : public DepsgraphNodeBuilder {
   {
   }
 
-  bool need_pull_base_into_graph(Base *base) override
+  bool need_pull_base_into_graph(const Base *base) override
   {
     if (!filter_.contains(&base->object->id)) {
       return false;
@@ -61,7 +61,7 @@ class DepsgraphFromIDsRelationBuilder : public DepsgraphRelationBuilder {
   {
   }
 
-  bool need_pull_base_into_graph(Base *base) override
+  bool need_pull_base_into_graph(const Base *base) override
   {
     if (!filter_.contains(&base->object->id)) {
       return false;
diff --git a/source/blender/depsgraph/intern/builder/pipeline_from_ids.h b/source/blender/depsgraph/intern/builder/pipeline_from_ids.h
index a2c75c048cb..c277d44aaad 100644
--- a/source/blender/depsgraph/intern/builder/pipeline_from_ids.h
+++ b/source/blender/depsgraph/intern/builder/pipeline_from_ids.h
@@ -9,8 +9,7 @@
 
 #include "pipeline.h"
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 /* Optimized builders for dependency graph built from a given set of IDs.
  *
@@ -37,5 +36,4 @@ class FromIDsBuilderPipeline : public AbstractBuilderPipeline {
   Span<ID *> ids_;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/pipeline_render.h b/source/blender/depsgraph/intern/builder/pipeline_render.h
index cb704f84c59..7eb65168ea6 100644
--- a/source/blender/depsgraph/intern/builder/pipeline_render.h
+++ b/source/blender/depsgraph/intern/builder/pipeline_render.h
@@ -9,8 +9,7 @@
 
 #include "pipeline.h"
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 class RenderBuilderPipeline : public AbstractBuilderPipeline {
  public:
@@ -21,5 +20,4 @@ class RenderBuilderPipeline : public AbstractBuilderPipeline {
   virtual void build_relations(DepsgraphRelationBuilder &relation_builder) override;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/builder/pipeline_view_layer.h b/source/blender/depsgraph/intern/builder/pipeline_view_layer.h
index 18b9ce5d5ff..ffd6fa07776 100644
--- a/source/blender/depsgraph/intern/builder/pipeline_view_layer.h
+++ b/source/blender/depsgraph/intern/builder/pipeline_view_layer.h
@@ -9,8 +9,7 @@
 
 #include "pipeline.h"
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 class ViewLayerBuilderPipeline : public AbstractBuilderPipeline {
  public:
@@ -21,5 +20,4 @@ class ViewLayerBuilderPipeline : public AbstractBuilderPipeline {
   virtual void build_relations(DepsgraphRelationBuilder &relation_builder) override;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/debug/deg_debug.h b/source/blender/depsgraph/intern/debug/deg_debug.h
index ee6c5b046b7..8f18bd70d36 100644
--- a/source/blender/depsgraph/intern/debug/deg_debug.h
+++ b/source/blender/depsgraph/intern/debug/deg_debug.h
@@ -14,8 +14,7 @@
 
 #include "DEG_depsgraph_debug.h"
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 class DepsgraphDebug {
  public:
@@ -74,5 +73,4 @@ bool terminal_do_color(void);
 string color_for_pointer(const void *pointer);
 string color_end(void);
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/debug/deg_time_average.h b/source/blender/depsgraph/intern/debug/deg_time_average.h
index cc47f03b221..d4eb05a9ddb 100644
--- a/source/blender/depsgraph/intern/debug/deg_time_average.h
+++ b/source/blender/depsgraph/intern/debug/deg_time_average.h
@@ -7,8 +7,7 @@
 
 #pragma once
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 /* Utility class which takes care of calculating average of time series, such as FPS counters. */
 template<int MaxSamples> class AveragedTimeSampler {
@@ -52,5 +51,4 @@ template<int MaxSamples> class AveragedTimeSampler {
   int next_sample_index_;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/depsgraph.cc b/source/blender/depsgraph/intern/depsgraph.cc
index 4514084059a..d460a68747d 100644
--- a/source/blender/depsgraph/intern/depsgraph.cc
+++ b/source/blender/depsgraph/intern/depsgraph.cc
@@ -45,9 +45,9 @@ namespace blender::deg {
 
 Depsgraph::Depsgraph(Main *bmain, Scene *scene, ViewLayer *view_layer, eEvaluationMode mode)
     : time_source(nullptr),
-      need_update(true),
-      need_visibility_update(true),
-      need_visibility_time_update(false),
+      need_update_relations(true),
+      need_tag_id_on_graph_visibility_update(true),
+      need_tag_id_on_graph_visibility_time_update(false),
       bmain(bmain),
       scene(scene),
       view_layer(view_layer),
diff --git a/source/blender/depsgraph/intern/depsgraph.h b/source/blender/depsgraph/intern/depsgraph.h
index ca4ce058904..33d97e4b8b2 100644
--- a/source/blender/depsgraph/intern/depsgraph.h
+++ b/source/blender/depsgraph/intern/depsgraph.h
@@ -31,8 +31,7 @@ struct ID;
 struct Scene;
 struct ViewLayer;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct IDNode;
 struct Node;
@@ -90,12 +89,12 @@ struct Depsgraph {
   TimeSourceNode *time_source;
 
   /* Indicates whether relations needs to be updated. */
-  bool need_update;
+  bool need_update_relations;
 
   /* Indicated whether IDs in this graph are to be tagged as if they first appear visible, with
    * an optional tag for their animation (time) update. */
-  bool need_visibility_update;
-  bool need_visibility_time_update;
+  bool need_tag_id_on_graph_visibility_update;
+  bool need_tag_id_on_graph_visibility_time_update;
 
   /* Indicates which ID types were updated. */
   char id_type_updated[INDEX_ID_MAX];
@@ -162,5 +161,4 @@ struct Depsgraph {
   MEM_CXX_CLASS_ALLOC_FUNCS("Depsgraph");
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/depsgraph_build.cc b/source/blender/depsgraph/intern/depsgraph_build.cc
index c64b7bc1eb7..a207c13d646 100644
--- a/source/blender/depsgraph/intern/depsgraph_build.cc
+++ b/source/blender/depsgraph/intern/depsgraph_build.cc
@@ -270,7 +270,7 @@ void DEG_graph_tag_relations_update(Depsgraph *graph)
 {
   DEG_DEBUG_PRINTF(graph, TAG, "%s: Tagging relations for update.\n", __func__);
   deg::Depsgraph *deg_graph = reinterpret_cast<deg::Depsgraph *>(graph);
-  deg_graph->need_update = true;
+  deg_graph->need_update_relations = true;
   /* NOTE: When relations are updated, it's quite possible that
    * we've got new bases in the scene. This means, we need to
    * re-create flat array of bases in view layer.
@@ -286,7 +286,7 @@ void DEG_graph_tag_relations_update(Depsgraph *graph)
 void DEG_graph_relations_update(Depsgraph *graph)
 {
   deg::Depsgraph *deg_graph = (deg::Depsgraph *)graph;
-  if (!deg_graph->need_update) {
+  if (!deg_graph->need_update_relations) {
     /* Graph is up to date, nothing to do. */
     return;
   }
diff --git a/source/blender/depsgraph/intern/depsgraph_physics.h b/source/blender/depsgraph/intern/depsgraph_physics.h
index a8d37f76b09..2105eb62ce1 100644
--- a/source/blender/depsgraph/intern/depsgraph_physics.h
+++ b/source/blender/depsgraph/intern/depsgraph_physics.h
@@ -10,8 +10,7 @@
 struct Collection;
 struct ListBase;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
@@ -21,5 +20,4 @@ ListBase *build_collision_relations(Depsgraph *graph,
                                     unsigned int modifier_type);
 void clear_physics_relations(Depsgraph *graph);
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/depsgraph_query.cc b/source/blender/depsgraph/intern/depsgraph_query.cc
index 6ffc711a475..9a047c70d01 100644
--- a/source/blender/depsgraph/intern/depsgraph_query.cc
+++ b/source/blender/depsgraph/intern/depsgraph_query.cc
@@ -328,7 +328,7 @@ bool DEG_is_fully_evaluated(const struct Depsgraph *depsgraph)
 {
   const deg::Depsgraph *deg_graph = (const deg::Depsgraph *)depsgraph;
   /* Check whether relations are up to date. */
-  if (deg_graph->need_update) {
+  if (deg_graph->need_update_relations) {
     return false;
   }
   /* Check whether IDs are up to date. */
diff --git a/source/blender/depsgraph/intern/depsgraph_registry.h b/source/blender/depsgraph/intern/depsgraph_registry.h
index 2746f17590a..4ab63dcc77d 100644
--- a/source/blender/depsgraph/intern/depsgraph_registry.h
+++ b/source/blender/depsgraph/intern/depsgraph_registry.h
@@ -11,8 +11,7 @@
 
 struct Main;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
@@ -20,5 +19,4 @@ void register_graph(Depsgraph *depsgraph);
 void unregister_graph(Depsgraph *depsgraph);
 Span<Depsgraph *> get_all_registered_graphs(Main *bmain);
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/depsgraph_relation.h b/source/blender/depsgraph/intern/depsgraph_relation.h
index 4d51ad85878..1bacb9abfa6 100644
--- a/source/blender/depsgraph/intern/depsgraph_relation.h
+++ b/source/blender/depsgraph/intern/depsgraph_relation.h
@@ -9,8 +9,7 @@
 
 #include "MEM_guardedalloc.h"
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Node;
 
@@ -49,5 +48,4 @@ struct Relation {
   MEM_CXX_CLASS_ALLOC_FUNCS("Relation");
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/depsgraph_tag.cc b/source/blender/depsgraph/intern/depsgraph_tag.cc
index b50081458ad..9cd5980d8fe 100644
--- a/source/blender/depsgraph/intern/depsgraph_tag.cc
+++ b/source/blender/depsgraph/intern/depsgraph_tag.cc
@@ -494,19 +494,19 @@ void deg_graph_node_tag_zero(Main *bmain,
 
 void graph_tag_on_visible_update(Depsgraph *graph, const bool do_time)
 {
-  graph->need_visibility_update = true;
-  graph->need_visibility_time_update |= do_time;
+  graph->need_tag_id_on_graph_visibility_update = true;
+  graph->need_tag_id_on_graph_visibility_time_update |= do_time;
 }
 
 } /* namespace */
 
 void graph_tag_ids_for_visible_update(Depsgraph *graph)
 {
-  if (!graph->need_visibility_update) {
+  if (!graph->need_tag_id_on_graph_visibility_update) {
     return;
   }
 
-  const bool do_time = graph->need_visibility_time_update;
+  const bool do_time = graph->need_tag_id_on_graph_visibility_time_update;
   Main *bmain = graph->bmain;
 
   /* NOTE: It is possible to have this function called with `do_time=false` first and later (prior
@@ -561,8 +561,8 @@ void graph_tag_ids_for_visible_update(Depsgraph *graph)
     id_node->previously_visible_components_mask = id_node->visible_components_mask;
   }
 
-  graph->need_visibility_update = false;
-  graph->need_visibility_time_update = false;
+  graph->need_tag_id_on_graph_visibility_update = false;
+  graph->need_tag_id_on_graph_visibility_time_update = false;
 }
 
 NodeType geometry_tag_to_component(const ID *id)
diff --git a/source/blender/depsgraph/intern/depsgraph_tag.h b/source/blender/depsgraph/intern/depsgraph_tag.h
index a0518420bfb..b722aab5719 100644
--- a/source/blender/depsgraph/intern/depsgraph_tag.h
+++ b/source/blender/depsgraph/intern/depsgraph_tag.h
@@ -10,8 +10,7 @@
 struct ID;
 struct Main;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
@@ -29,5 +28,4 @@ void graph_id_tag_update(
  * Will do nothing if the graph is not tagged for visibility update. */
 void graph_tag_ids_for_visible_update(Depsgraph *graph);
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/depsgraph_type.h b/source/blender/depsgraph/intern/depsgraph_type.h
index 9cf14a831bc..9e21d124f83 100644
--- a/source/blender/depsgraph/intern/depsgraph_type.h
+++ b/source/blender/depsgraph/intern/depsgraph_type.h
@@ -34,8 +34,7 @@ struct Depsgraph;
 
 struct CustomData_MeshMasks;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 /* Commonly used types. */
 using std::deque;
@@ -153,5 +152,4 @@ struct DEGCustomDataMeshMasks {
   }
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/depsgraph_update.h b/source/blender/depsgraph/intern/depsgraph_update.h
index 18f8e6acab6..c5a72157bd2 100644
--- a/source/blender/depsgraph/intern/depsgraph_update.h
+++ b/source/blender/depsgraph/intern/depsgraph_update.h
@@ -10,12 +10,10 @@
 struct DEGEditorUpdateContext;
 struct ID;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 void deg_editors_id_update(const DEGEditorUpdateContext *update_ctx, struct ID *id);
 
 void deg_editors_scene_update(const DEGEditorUpdateContext *update_ctx, bool updated);
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval.cc b/source/blender/depsgraph/intern/eval/deg_eval.cc
index 2d9d40aede6..9ac1f5275ac 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval.cc
+++ b/source/blender/depsgraph/intern/eval/deg_eval.cc
@@ -302,8 +302,28 @@ void schedule_node_to_queue(OperationNode *node,
   BLI_gsqueue_push(evaluation_queue, &node);
 }
 
-void evaluate_graph_single_threaded(DepsgraphEvalState *state)
+/* Evaluate given stage of the dependency graph evaluation using multiple threads.
+ *
+ * NOTE: Will assign the `state->stage` to the given stage. */
+void evaluate_graph_threaded_stage(DepsgraphEvalState *state,
+                                   TaskPool *task_pool,
+                                   const EvaluationStage stage)
 {
+  state->stage = stage;
+
+  schedule_graph(state, schedule_node_to_pool, task_pool);
+  BLI_task_pool_work_and_wait(task_pool);
+}
+
+/* Evaluate remaining operations of the dependency graph in a single threaded manner. */
+void evaluate_graph_single_threaded_if_needed(DepsgraphEvalState *state)
+{
+  if (!state->need_single_thread_pass) {
+    return;
+  }
+
+  state->stage = EvaluationStage::SINGLE_THREADED_WORKAROUND;
+
   GSQueue *evaluation_queue = BLI_gsqueue_new(sizeof(OperationNode *));
   schedule_graph(state, schedule_node_to_queue, evaluation_queue);
 
@@ -334,9 +354,7 @@ void depsgraph_ensure_view_layer(Depsgraph *graph)
   deg_update_copy_on_write_datablock(graph, scene_id_node);
 }
 
-}  // namespace
-
-static TaskPool *deg_evaluate_task_pool_create(DepsgraphEvalState *state)
+TaskPool *deg_evaluate_task_pool_create(DepsgraphEvalState *state)
 {
   if (G.debug & G_DEBUG_DEPSGRAPH_NO_THREADS) {
     return BLI_task_pool_create_no_threads(state);
@@ -345,6 +363,8 @@ static TaskPool *deg_evaluate_task_pool_create(DepsgraphEvalState *state)
   return BLI_task_pool_create_suspended(state, TASK_PRIORITY_HIGH);
 }
 
+}  // namespace
+
 void deg_evaluate_on_refresh(Depsgraph *graph)
 {
   /* Nothing to update, early out. */
@@ -361,33 +381,37 @@ void deg_evaluate_on_refresh(Depsgraph *graph)
 
   graph->is_evaluating = true;
   depsgraph_ensure_view_layer(graph);
+
   /* Set up evaluation state. */
   DepsgraphEvalState state;
   state.graph = graph;
   state.do_stats = graph->debug.do_time_debug();
   state.need_single_thread_pass = false;
+
   /* Prepare all nodes for evaluation. */
   initialize_execution(&state, graph);
 
-  /* Do actual evaluation now. */
-  /* First, process all Copy-On-Write nodes. */
-  state.stage = EvaluationStage::COPY_ON_WRITE;
+  /* Evaluation happens in several incremental steps:
+   *
+   * - Start with the copy-on-write operations which never form dependency cycles. This will ensure
+   *   that if a dependency graph has a cycle evaluation functions will always "see" valid expanded
+   *   datablock. It might not be evaluated yet, but at least the datablock will be valid.
+   *
+   * - Multi-threaded evaluation of all possible nodes.
+   *   Certain operations (and their subtrees) could be ignored. For example, meta-balls are not
+   *   safe from threading point of view, so the threaded evaluation will stop at the metaball
+   *   operation node.
+   *
+   * - Single-threaded pass of all remaining operations. */
+
   TaskPool *task_pool = deg_evaluate_task_pool_create(&state);
-  schedule_graph(&state, schedule_node_to_pool, task_pool);
-  BLI_task_pool_work_and_wait(task_pool);
-  BLI_task_pool_free(task_pool);
 
-  /* After that, process all other nodes. */
-  state.stage = EvaluationStage::THREADED_EVALUATION;
-  task_pool = deg_evaluate_task_pool_create(&state);
-  schedule_graph(&state, schedule_node_to_pool, task_pool);
-  BLI_task_pool_work_and_wait(task_pool);
+  evaluate_graph_threaded_stage(&state, task_pool, EvaluationStage::COPY_ON_WRITE);
+  evaluate_graph_threaded_stage(&state, task_pool, EvaluationStage::THREADED_EVALUATION);
+
   BLI_task_pool_free(task_pool);
 
-  if (state.need_single_thread_pass) {
-    state.stage = EvaluationStage::SINGLE_THREADED_WORKAROUND;
-    evaluate_graph_single_threaded(&state);
-  }
+  evaluate_graph_single_threaded_if_needed(&state);
 
   /* Finalize statistics gathering. This is because we only gather single
    * operation timing here, without aggregating anything to avoid any extra
@@ -395,6 +419,7 @@ void deg_evaluate_on_refresh(Depsgraph *graph)
   if (state.do_stats) {
     deg_eval_stats_aggregate(graph);
   }
+
   /* Clear any uncleared tags - just in case. */
   deg_graph_clear_tags(graph);
   graph->is_evaluating = false;
diff --git a/source/blender/depsgraph/intern/eval/deg_eval.h b/source/blender/depsgraph/intern/eval/deg_eval.h
index ba86e1a349d..6937231d81a 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval.h
@@ -9,8 +9,7 @@
 
 #pragma once
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
@@ -23,5 +22,4 @@ struct Depsgraph;
  */
 void deg_evaluate_on_refresh(Depsgraph *graph);
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.h b/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.h
index 29322d58218..cbf450aa3f1 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval_copy_on_write.h
@@ -27,8 +27,7 @@ struct ID;
 
 struct Depsgraph;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 class DepsgraphNodeBuilder;
@@ -77,5 +76,4 @@ bool deg_copy_on_write_is_expanded(const struct ID *id_cow);
 bool deg_copy_on_write_is_needed(const ID *id_orig);
 bool deg_copy_on_write_is_needed(const ID_Type id_type);
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_flush.h b/source/blender/depsgraph/intern/eval/deg_eval_flush.h
index 6eb232e76e5..614ca66faed 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_flush.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval_flush.h
@@ -9,8 +9,7 @@
 
 #pragma once
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
@@ -24,5 +23,4 @@ void deg_graph_flush_updates(struct Depsgraph *graph);
  */
 void deg_graph_clear_tags(struct Depsgraph *graph);
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup.h b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup.h
index deb21715a28..3d9b308c5ad 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup.h
@@ -17,8 +17,7 @@
 #include "intern/eval/deg_eval_runtime_backup_sound.h"
 #include "intern/eval/deg_eval_runtime_backup_volume.h"
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
@@ -59,5 +58,4 @@ class RuntimeBackup {
   GPencilBackup gpencil_backup;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_animation.h b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_animation.h
index 92847b330e8..807cc91242e 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_animation.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_animation.h
@@ -11,8 +11,7 @@
 
 #include "intern/depsgraph_type.h"
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
@@ -46,5 +45,4 @@ class AnimationBackup {
   Vector<AnimationValueBackup> values_backup;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_gpencil.h b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_gpencil.h
index 68eff01fd60..95c0ca3a2fe 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_gpencil.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_gpencil.h
@@ -9,8 +9,7 @@
 
 struct bGPdata;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
@@ -25,5 +24,4 @@ class GPencilBackup {
   const Depsgraph *depsgraph;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_modifier.h b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_modifier.h
index faec8f7c065..ee51204b24c 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_modifier.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_modifier.h
@@ -11,8 +11,7 @@
 
 struct ModifierData;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 class ModifierDataBackup {
  public:
@@ -22,5 +21,4 @@ class ModifierDataBackup {
   void *runtime;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_movieclip.h b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_movieclip.h
index 0e826e8f72a..aa13914d8c8 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_movieclip.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_movieclip.h
@@ -11,8 +11,7 @@ struct MovieClip;
 struct MovieClipCache;
 struct anim;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
@@ -30,5 +29,4 @@ class MovieClipBackup {
   struct MovieClipCache *cache;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_object.h b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_object.h
index 3b138feec0b..c9cc167d927 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_object.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_object.h
@@ -17,8 +17,7 @@
 
 struct Object;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
@@ -46,5 +45,4 @@ class ObjectRuntimeBackup {
   Map<SessionUUID, bPoseChannel_Runtime> pose_channel_runtime_data;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_pose.h b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_pose.h
index 8fd5de44001..2f6a3dd4371 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_pose.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_pose.h
@@ -11,8 +11,6 @@
 
 #include "DNA_action_types.h"
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
-}
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_scene.h b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_scene.h
index 17683966a22..155cb42a96d 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_scene.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_scene.h
@@ -11,8 +11,7 @@
 
 struct Scene;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
@@ -40,5 +39,4 @@ class SceneBackup {
   SequencerBackup sequencer_backup;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_sequence.h b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_sequence.h
index 95fbd2a3e4e..f97b6b200e9 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_sequence.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_sequence.h
@@ -11,8 +11,7 @@
 
 struct Sequence;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
@@ -32,5 +31,4 @@ class SequenceBackup {
   ListBase anims;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_sequencer.h b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_sequencer.h
index 19e1a63ab4c..38fb8e81cc3 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_sequencer.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_sequencer.h
@@ -16,8 +16,7 @@
 
 struct Scene;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
@@ -34,5 +33,4 @@ class SequencerBackup {
   Map<SessionUUID, SequenceBackup> sequences_backup;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_sound.h b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_sound.h
index c4267be1421..9e1d15251e8 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_sound.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_sound.h
@@ -9,8 +9,7 @@
 
 struct bSound;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
@@ -29,5 +28,4 @@ class SoundBackup {
   void *playback_handle;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_volume.h b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_volume.h
index bc263cc58f8..60cba64f120 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_volume.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_volume.h
@@ -10,8 +10,7 @@
 struct Volume;
 struct VolumeGridVector;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
@@ -27,5 +26,4 @@ class VolumeBackup {
   char filepath[1024]; /* FILE_MAX */
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/eval/deg_eval_stats.h b/source/blender/depsgraph/intern/eval/deg_eval_stats.h
index a1e3cdaca76..c24c5f07135 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_stats.h
+++ b/source/blender/depsgraph/intern/eval/deg_eval_stats.h
@@ -7,13 +7,11 @@
 
 #pragma once
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 
 /* Aggregate operation timings to overall component and ID nodes timing. */
 void deg_eval_stats_aggregate(Depsgraph *graph);
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/node/deg_node.h b/source/blender/depsgraph/intern/node/deg_node.h
index 509867ad47a..5b33528df33 100644
--- a/source/blender/depsgraph/intern/node/deg_node.h
+++ b/source/blender/depsgraph/intern/node/deg_node.h
@@ -18,8 +18,7 @@
 struct ID;
 struct Scene;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct Depsgraph;
 struct OperationNode;
@@ -217,5 +216,4 @@ struct Node {
 
 void deg_register_base_depsnodes();
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/node/deg_node_component.h b/source/blender/depsgraph/intern/node/deg_node_component.h
index 6958866af3b..375a26ab49b 100644
--- a/source/blender/depsgraph/intern/node/deg_node_component.h
+++ b/source/blender/depsgraph/intern/node/deg_node_component.h
@@ -22,8 +22,7 @@
 struct ID;
 struct bPoseChannel;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct BoneComponentNode;
 struct Depsgraph;
@@ -56,32 +55,45 @@ struct ComponentNode : public Node {
 
   virtual string identifier() const override;
 
-  /* Find an existing operation, if requested operation does not exist
-   * nullptr will be returned. */
+  /* Find an existing operation, if requested operation does not exist nullptr will be returned.
+   * See #add_operation for the meaning and examples of #name and #name_tag.
+   */
   OperationNode *find_operation(OperationIDKey key) const;
-  OperationNode *find_operation(OperationCode opcode, const char *name, int name_tag) const;
+  OperationNode *find_operation(OperationCode opcode,
+                                const char *name = "",
+                                int name_tag = -1) const;
 
-  /* Find an existing operation, will throw an assert() if it does not exist. */
+  /* Find an existing operation, will throw an assert() if it does not exist.
+   * See #add_operation for the meaning and examples of #name and #name_tag. */
   OperationNode *get_operation(OperationIDKey key) const;
-  OperationNode *get_operation(OperationCode opcode, const char *name, int name_tag) const;
+  OperationNode *get_operation(OperationCode opcode,
+                               const char *name = "",
+                               int name_tag = -1) const;
 
   /* Check operation exists and return it. */
   bool has_operation(OperationIDKey key) const;
-  bool has_operation(OperationCode opcode, const char *name, int name_tag) const;
+  bool has_operation(OperationCode opcode, const char *name = "", int name_tag = -1) const;
 
   /**
    * Create a new node for representing an operation and add this to graph
+   *
    * \warning If an existing node is found, it will be modified. This helps
    * when node may have been partially created earlier (e.g. parent ref before
    * parent item is added)
    *
    * \param opcode: The operation to perform.
-   * \param name: Identifier for operation - used to find/locate it again.
+   * \param name: An optional identifier for operation. It will be used to tell operation nodes
+   *              with the same code apart. For example, parameter operation code will have name
+   *              set to the corresponding custom property name
+   * \param name_tag: An optional integer tag for the name. Is an additional way to tell operations
+   *                  apart. For example, RNA path to an array property will have the same opcode
+   *                  of PARAMETERS, name corresponding to the property name, and name tag
+   *                  corresponding to the array index within the property.
    */
   OperationNode *add_operation(const DepsEvalOperationCb &op,
                                OperationCode opcode,
-                               const char *name,
-                               int name_tag);
+                               const char *name = "",
+                               int name_tag = -1);
 
   /* Entry/exit operations management.
    *
@@ -182,7 +194,6 @@ DEG_COMPONENT_NODE_DECLARE_GENERIC(ShadingParameters);
 DEG_COMPONENT_NODE_DECLARE_GENERIC(Transform);
 DEG_COMPONENT_NODE_DECLARE_NO_COW_TAG_ON_UPDATE(ObjectFromLayer);
 DEG_COMPONENT_NODE_DECLARE_GENERIC(Dupli);
-DEG_COMPONENT_NODE_DECLARE_GENERIC(Synchronization);
 DEG_COMPONENT_NODE_DECLARE_GENERIC(Audio);
 DEG_COMPONENT_NODE_DECLARE_GENERIC(Armature);
 DEG_COMPONENT_NODE_DECLARE_GENERIC(GenericDatablock);
@@ -190,6 +201,25 @@ DEG_COMPONENT_NODE_DECLARE_NO_COW(Visibility);
 DEG_COMPONENT_NODE_DECLARE_GENERIC(Simulation);
 DEG_COMPONENT_NODE_DECLARE_GENERIC(NTreeOutput);
 
+/* Synchronization Component. */
+struct SynchronizationComponentNode : public ComponentNode {
+  SynchronizationComponentNode()
+  {
+    /* Enforce "visibility" of the synchronization component.
+     *
+     * This component is never connected to other ID nodes, and hence can not be handled in the
+     * same way as other components needed for evaluation. It is only needed for proper
+     * evaluation of the ID node it belongs to.
+     *
+     * The design is such that the synchronization is supposed to happen whenever any part of the
+     * ID changed/evaluated. Here we mark the component as "visible" so that genetic recalc flag
+     * flushing and scheduling will handle the component in a generic manner. */
+    affects_directly_visible = true;
+  }
+
+  DEG_COMPONENT_NODE_DECLARE;
+};
+
 /* Bone Component */
 struct BoneComponentNode : public ComponentNode {
   /** Initialize 'bone component' node - from pointer data given. */
@@ -218,5 +248,4 @@ struct ParametersComponentNode : public ComponentNode {
 
 void deg_register_component_depsnodes();
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/node/deg_node_factory.h b/source/blender/depsgraph/intern/node/deg_node_factory.h
index 6caf99ac9ba..ec5029e8352 100644
--- a/source/blender/depsgraph/intern/node/deg_node_factory.h
+++ b/source/blender/depsgraph/intern/node/deg_node_factory.h
@@ -14,9 +14,7 @@
 
 struct ID;
 
-namespace blender {
-namespace deg {
-
+namespace blender::deg {
 struct DepsNodeFactory {
   virtual NodeType type() const = 0;
   virtual const char *type_name() const = 0;
@@ -41,7 +39,6 @@ void register_node_typeinfo(DepsNodeFactory *factory);
 /* Get typeinfo for specified type */
 DepsNodeFactory *type_get_factory(NodeType type);
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
 
 #include "intern/node/deg_node_factory_impl.h"
diff --git a/source/blender/depsgraph/intern/node/deg_node_factory_impl.h b/source/blender/depsgraph/intern/node/deg_node_factory_impl.h
index 76a91860cc1..d9d0a1c1e3e 100644
--- a/source/blender/depsgraph/intern/node/deg_node_factory_impl.h
+++ b/source/blender/depsgraph/intern/node/deg_node_factory_impl.h
@@ -11,8 +11,7 @@
 
 struct ID;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 template<class ModeObjectType> NodeType DepsNodeFactoryImpl<ModeObjectType>::type() const
 {
@@ -48,5 +47,4 @@ Node *DepsNodeFactoryImpl<ModeObjectType>::create_node(const ID *id,
   return node;
 }
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/node/deg_node_id.h b/source/blender/depsgraph/intern/node/deg_node_id.h
index a8b6294b482..406ca828049 100644
--- a/source/blender/depsgraph/intern/node/deg_node_id.h
+++ b/source/blender/depsgraph/intern/node/deg_node_id.h
@@ -12,8 +12,7 @@
 #include "DNA_ID.h"
 #include "intern/node/deg_node.h"
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct ComponentNode;
 
@@ -117,5 +116,4 @@ struct IDNode : public Node {
   DEG_DEPSNODE_DECLARE;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/node/deg_node_operation.cc b/source/blender/depsgraph/intern/node/deg_node_operation.cc
index c29aeefd9b2..3029379d141 100644
--- a/source/blender/depsgraph/intern/node/deg_node_operation.cc
+++ b/source/blender/depsgraph/intern/node/deg_node_operation.cc
@@ -32,6 +32,8 @@ const char *operationCodeAsString(OperationCode opcode)
       return "PARAMETERS_EVAL";
     case OperationCode::PARAMETERS_EXIT:
       return "PARAMETERS_EXIT";
+    case OperationCode::VISIBILITY:
+      return "VISIBILITY";
     /* Animation, Drivers, etc. */
     case OperationCode::ANIMATION_ENTRY:
       return "ANIMATION_ENTRY";
diff --git a/source/blender/depsgraph/intern/node/deg_node_operation.h b/source/blender/depsgraph/intern/node/deg_node_operation.h
index d4916be1113..fd772fbce9d 100644
--- a/source/blender/depsgraph/intern/node/deg_node_operation.h
+++ b/source/blender/depsgraph/intern/node/deg_node_operation.h
@@ -13,8 +13,7 @@
 
 struct Depsgraph;
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 struct ComponentNode;
 
@@ -34,6 +33,7 @@ enum class OperationCode {
   PARAMETERS_ENTRY,
   PARAMETERS_EVAL,
   PARAMETERS_EXIT,
+  VISIBILITY,
 
   /* Animation, Drivers, etc. --------------------------------------------- */
   /* NLA + Action */
@@ -202,13 +202,16 @@ const char *operationCodeAsString(OperationCode opcode);
 enum OperationFlag {
   /* Node needs to be updated. */
   DEPSOP_FLAG_NEEDS_UPDATE = (1 << 0),
+
   /* Node was directly modified, causing need for update. */
   DEPSOP_FLAG_DIRECTLY_MODIFIED = (1 << 1),
+
   /* Node was updated due to user input. */
   DEPSOP_FLAG_USER_MODIFIED = (1 << 2),
-  /* Node may not be removed, even when it has no evaluation callback and no
-   * outgoing relations. This is for NO-OP nodes that are purely used to indicate a
-   * relation between components/IDs, and not for connecting to an operation. */
+
+  /* Node may not be removed, even when it has no evaluation callback and no outgoing relations.
+   * This is for NO-OP nodes that are purely used to indicate a relation between components/IDs,
+   * and not for connecting to an operation. */
   DEPSOP_FLAG_PINNED = (1 << 3),
 
   /* Set of flags which gets flushed along the relations. */
@@ -268,5 +271,4 @@ struct OperationNode : public Node {
 
 void deg_register_operation_depsnodes();
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/depsgraph/intern/node/deg_node_time.h b/source/blender/depsgraph/intern/node/deg_node_time.h
index fcfe9a0fa80..3946b63384d 100644
--- a/source/blender/depsgraph/intern/node/deg_node_time.h
+++ b/source/blender/depsgraph/intern/node/deg_node_time.h
@@ -9,8 +9,7 @@
 
 #include "intern/node/deg_node.h"
 
-namespace blender {
-namespace deg {
+namespace blender::deg {
 
 /* Time Source Node. */
 struct TimeSourceNode : public Node {
@@ -25,5 +24,4 @@ struct TimeSourceNode : public Node {
   DEG_DEPSNODE_DECLARE;
 };
 
-}  // namespace deg
-}  // namespace blender
+}  // namespace blender::deg
diff --git a/source/blender/draw/engines/eevee/eevee_sampling.c b/source/blender/draw/engines/eevee/eevee_sampling.c
index a1a3e98f34f..34d3cd74b36 100644
--- a/source/blender/draw/engines/eevee/eevee_sampling.c
+++ b/source/blender/draw/engines/eevee/eevee_sampling.c
@@ -74,7 +74,8 @@ void EEVEE_sample_ellipse(int sample_ofs,
 
   BLI_halton_2d(ht_primes, ht_offset, sample_ofs, ht_point);
 
-  /* Decorelate AA and shadow samples. (see T68594) */
+  /* Decorrelate AA and shadow samples. (see T68594) */
+
   ht_point[0] = fmod(ht_point[0] * 1151.0, 1.0);
   ht_point[1] = fmod(ht_point[1] * 1069.0, 1.0);
 
@@ -97,7 +98,7 @@ void EEVEE_random_rotation_m4(int sample_ofs, float scale, float r_mat[4][4])
 
   BLI_halton_3d(ht_primes, ht_offset, sample_ofs, ht_point);
 
-  /* Decorelate AA and shadow samples. (see T68594) */
+  /* Decorrelate AA and shadow samples. (see T68594) */
   ht_point[0] = fmod(ht_point[0] * 1151.0, 1.0);
   ht_point[1] = fmod(ht_point[1] * 1069.0, 1.0);
   ht_point[2] = fmod(ht_point[2] * 1151.0, 1.0);
diff --git a/source/blender/draw/engines/eevee/eevee_volumes.c b/source/blender/draw/engines/eevee/eevee_volumes.c
index 8223df22ee9..533e71b9b32 100644
--- a/source/blender/draw/engines/eevee/eevee_volumes.c
+++ b/source/blender/draw/engines/eevee/eevee_volumes.c
@@ -316,12 +316,13 @@ void EEVEE_volumes_cache_object_add(EEVEE_ViewLayerData *sldata,
   DRWShadingGroup *grp = DRW_shgroup_create(sh, vedata->psl->volumetric_objects_ps);
 
   grp = DRW_shgroup_volume_create_sub(scene, ob, grp, mat);
-  DRW_shgroup_add_material_resources(grp, mat);
 
   if (grp == NULL) {
     return;
   }
 
+  DRW_shgroup_add_material_resources(grp, mat);
+
   /* TODO(fclem): remove those "unnecessary" UBOs */
   DRW_shgroup_uniform_block(grp, "planar_block", sldata->planar_ubo);
   DRW_shgroup_uniform_block(grp, "probe_block", sldata->probe_ubo);
diff --git a/source/blender/draw/engines/eevee/shaders/surface_lib.glsl b/source/blender/draw/engines/eevee/shaders/surface_lib.glsl
index 8e1bafe8d92..80c6b935187 100644
--- a/source/blender/draw/engines/eevee/shaders/surface_lib.glsl
+++ b/source/blender/draw/engines/eevee/shaders/surface_lib.glsl
@@ -97,7 +97,7 @@ GlobalData init_globals(void)
   GlobalData surf;
 
 #  if defined(WORLD_BACKGROUND) || defined(PROBE_CAPTURE)
-  surf.P = -cameraVec(worldPosition);
+  surf.P = transform_direction(ViewMatrixInverse, viewCameraVec(viewPosition));
   surf.N = surf.Ng = -surf.P;
   surf.ray_length = 0.0;
 #  else
diff --git a/source/blender/draw/engines/gpencil/shaders/gpencil_vert.glsl b/source/blender/draw/engines/gpencil/shaders/gpencil_vert.glsl
index 5f5419bac47..b0ee059cb9d 100644
--- a/source/blender/draw/engines/gpencil/shaders/gpencil_vert.glsl
+++ b/source/blender/draw/engines/gpencil/shaders/gpencil_vert.glsl
@@ -32,7 +32,7 @@ void main()
   vec3 vert_N;
 
   gpMaterial gp_mat = materials[ma1.x + gpMaterialOffset];
-  gpMaterialFlag gp_flag = floatBitsToInt(gp_mat._flag);
+  gpMaterialFlag gp_flag = floatBitsToUint(gp_mat._flag);
 
   gl_Position = gpencil_vertex(ma,
                                ma1,
diff --git a/source/blender/draw/intern/draw_cache_impl_curves.cc b/source/blender/draw/intern/draw_cache_impl_curves.cc
index d5f188402d6..1d3d6222f8f 100644
--- a/source/blender/draw/intern/draw_cache_impl_curves.cc
+++ b/source/blender/draw/intern/draw_cache_impl_curves.cc
@@ -75,13 +75,14 @@ static void curves_batch_cache_init(Curves &curves)
 
   if (!cache) {
     cache = MEM_cnew<CurvesBatchCache>(__func__);
-    BLI_mutex_init(&cache->render_mutex);
     curves.batch_cache = cache;
   }
   else {
     memset(cache, 0, sizeof(*cache));
   }
 
+  BLI_mutex_init(&cache->render_mutex);
+
   cache->is_dirty = false;
 }
 
diff --git a/source/blender/draw/intern/draw_cache_impl_pointcloud.c b/source/blender/draw/intern/draw_cache_impl_pointcloud.c
index d715899e291..55d0eee00e5 100644
--- a/source/blender/draw/intern/draw_cache_impl_pointcloud.c
+++ b/source/blender/draw/intern/draw_cache_impl_pointcloud.c
@@ -18,6 +18,7 @@
 #include "DNA_object_types.h"
 #include "DNA_pointcloud_types.h"
 
+#include "BKE_customdata.h"
 #include "BKE_pointcloud.h"
 
 #include "GPU_batch.h"
@@ -139,7 +140,11 @@ static void pointcloud_batch_cache_ensure_pos(Object *ob, PointCloudBatchCache *
   }
 
   PointCloud *pointcloud = ob->data;
-  const bool has_radius = pointcloud->radius != NULL;
+  const float(*positions)[3] = (float(*)[3])CustomData_get_layer_named(
+      &pointcloud->pdata, CD_PROP_FLOAT3, "position");
+  const float *radii = (float *)CustomData_get_layer_named(
+      &pointcloud->pdata, CD_PROP_FLOAT, "radius");
+  const bool has_radius = radii != NULL;
 
   static GPUVertFormat format = {0};
   static GPUVertFormat format_no_radius = {0};
@@ -162,14 +167,14 @@ static void pointcloud_batch_cache_ensure_pos(Object *ob, PointCloudBatchCache *
   if (has_radius) {
     float(*vbo_data)[4] = (float(*)[4])GPU_vertbuf_get_data(cache->pos);
     for (int i = 0; i < pointcloud->totpoint; i++) {
-      copy_v3_v3(vbo_data[i], pointcloud->co[i]);
+      copy_v3_v3(vbo_data[i], positions[i]);
       /* TODO(fclem): remove multiplication here.
        * Here only for keeping the size correct for now. */
-      vbo_data[i][3] = pointcloud->radius[i] * 100.0f;
+      vbo_data[i][3] = radii[i] * 100.0f;
     }
   }
   else {
-    GPU_vertbuf_attr_fill(cache->pos, pos, pointcloud->co);
+    GPU_vertbuf_attr_fill(cache->pos, pos, positions);
   }
 }
 
diff --git a/source/blender/draw/intern/draw_cache_impl_subdivision.cc b/source/blender/draw/intern/draw_cache_impl_subdivision.cc
index 29ab814cfa4..cde2b59ea23 100644
--- a/source/blender/draw/intern/draw_cache_impl_subdivision.cc
+++ b/source/blender/draw/intern/draw_cache_impl_subdivision.cc
@@ -2045,7 +2045,7 @@ static bool draw_subdiv_create_requested_buffers(Object *ob,
   draw_subdiv_invalidate_evaluator_for_orco(subdiv, mesh_eval);
 
   if (!BKE_subdiv_eval_begin_from_mesh(
-          subdiv, mesh_eval, nullptr, SUBDIV_EVALUATOR_TYPE_GLSL_COMPUTE, evaluator_cache)) {
+          subdiv, mesh_eval, nullptr, SUBDIV_EVALUATOR_TYPE_GPU, evaluator_cache)) {
     /* This could happen in two situations:
      * - OpenSubdiv is disabled.
      * - Something totally bad happened, and OpenSubdiv rejected our
@@ -2220,7 +2220,7 @@ void DRW_create_subdivision(Object *ob,
                             const bool use_hide)
 {
   if (g_evaluator_cache == nullptr) {
-    g_evaluator_cache = openSubdiv_createEvaluatorCache(OPENSUBDIV_EVALUATOR_GLSL_COMPUTE);
+    g_evaluator_cache = openSubdiv_createEvaluatorCache(OPENSUBDIV_EVALUATOR_GPU);
   }
 
 #undef TIME_SUBDIV
diff --git a/source/blender/draw/intern/draw_manager.c b/source/blender/draw/intern/draw_manager.c
index bc9d0a3d02a..5d21ab75650 100644
--- a/source/blender/draw/intern/draw_manager.c
+++ b/source/blender/draw/intern/draw_manager.c
@@ -235,7 +235,7 @@ bool DRW_object_use_hide_faces(const struct Object *ob)
         return (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
       case OB_MODE_VERTEX_PAINT:
       case OB_MODE_WEIGHT_PAINT:
-        return (me->editflag & (ME_EDIT_PAINT_FACE_SEL | ME_EDIT_PAINT_VERT_SEL)) != 0;
+        return true;
     }
   }
 
diff --git a/source/blender/editors/animation/anim_deps.c b/source/blender/editors/animation/anim_deps.c
index d80eac2422e..ff53ad42e84 100644
--- a/source/blender/editors/animation/anim_deps.c
+++ b/source/blender/editors/animation/anim_deps.c
@@ -356,7 +356,7 @@ void ANIM_animdata_update(bAnimContext *ac, ListBase *anim_data)
       if (ale->update & ANIM_UPDATE_HANDLES) {
         ale->update &= ~ANIM_UPDATE_HANDLES;
         if (fcu) {
-          calchandles_fcurve(fcu);
+          BKE_fcurve_handles_recalc(fcu);
         }
       }
 
diff --git a/source/blender/editors/animation/anim_filter.c b/source/blender/editors/animation/anim_filter.c
index e20932fa53e..d9eeed94868 100644
--- a/source/blender/editors/animation/anim_filter.c
+++ b/source/blender/editors/animation/anim_filter.c
@@ -1807,11 +1807,13 @@ static size_t animdata_filter_gpencil_data(ListBase *anim_data,
     ListBase tmp_data = {NULL, NULL};
     size_t tmp_items = 0;
 
-    /* add gpencil animation channels */
-    BEGIN_ANIMFILTER_SUBCHANNELS (EXPANDED_GPD(gpd)) {
-      tmp_items += animdata_filter_gpencil_layers_data(&tmp_data, ads, gpd, filter_mode);
+    if (!(filter_mode & ANIMFILTER_FCURVESONLY)) {
+      /* add gpencil animation channels */
+      BEGIN_ANIMFILTER_SUBCHANNELS (EXPANDED_GPD(gpd)) {
+        tmp_items += animdata_filter_gpencil_layers_data(&tmp_data, ads, gpd, filter_mode);
+      }
+      END_ANIMFILTER_SUBCHANNELS;
     }
-    END_ANIMFILTER_SUBCHANNELS;
 
     /* did we find anything? */
     if (tmp_items) {
diff --git a/source/blender/editors/animation/anim_markers.c b/source/blender/editors/animation/anim_markers.c
index 03a2caf4b7d..3608140a29d 100644
--- a/source/blender/editors/animation/anim_markers.c
+++ b/source/blender/editors/animation/anim_markers.c
@@ -1588,12 +1588,13 @@ static void MARKER_OT_delete(wmOperatorType *ot)
   ot->idname = "MARKER_OT_delete";
 
   /* api callbacks */
-  ot->invoke = WM_operator_confirm;
+  ot->invoke = WM_operator_confirm_or_exec;
   ot->exec = ed_marker_delete_exec;
   ot->poll = ed_markers_poll_selected_no_locked_markers;
 
   /* flags */
   ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+  WM_operator_properties_confirm_or_exec(ot);
 }
 
 /** \} */
diff --git a/source/blender/editors/animation/drivers.c b/source/blender/editors/animation/drivers.c
index c6f68228807..effedd4307d 100644
--- a/source/blender/editors/animation/drivers.c
+++ b/source/blender/editors/animation/drivers.c
@@ -124,7 +124,7 @@ struct FCurve *alloc_driver_fcurve(const char rna_path[],
       insert_vert_fcurve(
           fcu, 1.0f, 1.0f, BEZT_KEYTYPE_KEYFRAME, INSERTKEY_FAST | INSERTKEY_NO_USERPREF);
       fcu->extend = FCURVE_EXTRAPOLATE_LINEAR;
-      calchandles_fcurve(fcu);
+      BKE_fcurve_handles_recalc(fcu);
     }
   }
 
diff --git a/source/blender/editors/animation/fmodifier_ui.c b/source/blender/editors/animation/fmodifier_ui.c
index 6f31472907b..d2f0ee622c4 100644
--- a/source/blender/editors/animation/fmodifier_ui.c
+++ b/source/blender/editors/animation/fmodifier_ui.c
@@ -1020,7 +1020,7 @@ bool ANIM_fmodifiers_paste_from_buf(ListBase *modifiers, bool replace, FCurve *c
 
   /* adding or removing the Cycles modifier requires an update to handles */
   if (curve && BKE_fcurve_is_cyclic(curve) != was_cyclic) {
-    calchandles_fcurve(curve);
+    BKE_fcurve_handles_recalc(curve);
   }
 
   /* did we succeed? */
diff --git a/source/blender/editors/animation/keyframes_edit.c b/source/blender/editors/animation/keyframes_edit.c
index 88207f7d514..706db498a82 100644
--- a/source/blender/editors/animation/keyframes_edit.c
+++ b/source/blender/editors/animation/keyframes_edit.c
@@ -444,7 +444,7 @@ void ANIM_animdata_keyframe_callback(bAnimContext *ac,
   ANIM_animdata_filter(ac, &anim_data, filter, ac->data, ac->datatype);
 
   for (ale = anim_data.first; ale; ale = ale->next) {
-    ANIM_fcurve_keyframes_loop(NULL, ale->key_data, NULL, callback_fn, calchandles_fcurve);
+    ANIM_fcurve_keyframes_loop(NULL, ale->key_data, NULL, callback_fn, BKE_fcurve_handles_recalc);
     ale->update |= ANIM_UPDATE_DEFAULT;
   }
 
diff --git a/source/blender/editors/animation/keyframes_general.c b/source/blender/editors/animation/keyframes_general.c
index dd88752af14..7723c221a40 100644
--- a/source/blender/editors/animation/keyframes_general.c
+++ b/source/blender/editors/animation/keyframes_general.c
@@ -47,77 +47,6 @@
 
 /* **************************************************** */
 
-void delete_fcurve_key(FCurve *fcu, int index, bool do_recalc)
-{
-  /* sanity check */
-  if (fcu == NULL) {
-    return;
-  }
-
-  /* verify the index:
-   * 1) cannot be greater than the number of available keyframes
-   * 2) negative indices are for specifying a value from the end of the array
-   */
-  if (abs(index) >= fcu->totvert) {
-    return;
-  }
-  if (index < 0) {
-    index += fcu->totvert;
-  }
-
-  /* Delete this keyframe */
-  memmove(
-      &fcu->bezt[index], &fcu->bezt[index + 1], sizeof(BezTriple) * (fcu->totvert - index - 1));
-  fcu->totvert--;
-
-  if (fcu->totvert == 0) {
-    MEM_SAFE_FREE(fcu->bezt);
-  }
-
-  /* recalc handles - only if it won't cause problems */
-  if (do_recalc) {
-    calchandles_fcurve(fcu);
-  }
-}
-
-bool delete_fcurve_keys(FCurve *fcu)
-{
-  bool changed = false;
-
-  if (fcu->bezt == NULL) { /* ignore baked curves */
-    return false;
-  }
-
-  /* Delete selected BezTriples */
-  for (int i = 0; i < fcu->totvert; i++) {
-    if (fcu->bezt[i].f2 & SELECT) {
-      if (i == fcu->active_keyframe_index) {
-        BKE_fcurve_active_keyframe_set(fcu, NULL);
-      }
-      memmove(&fcu->bezt[i], &fcu->bezt[i + 1], sizeof(BezTriple) * (fcu->totvert - i - 1));
-      fcu->totvert--;
-      i--;
-      changed = true;
-    }
-  }
-
-  /* Free the array of BezTriples if there are not keyframes */
-  if (fcu->totvert == 0) {
-    clear_fcurve_keys(fcu);
-  }
-
-  return changed;
-}
-
-void clear_fcurve_keys(FCurve *fcu)
-{
-  MEM_SAFE_FREE(fcu->bezt);
-
-  fcu->totvert = 0;
-}
-
-/* ---------------- */
-
 bool duplicate_fcurve_keys(FCurve *fcu)
 {
   bool changed = false;
@@ -282,7 +211,7 @@ void clean_fcurve(struct bAnimContext *ac, bAnimListElem *ale, float thresh, boo
     }
 
     if (fcu->bezt->vec[1][1] == default_value) {
-      clear_fcurve_keys(fcu);
+      BKE_fcurve_delete_keys_all(fcu);
 
       /* check if curve is really unused and if it is, return signal for deletion */
       if (BKE_fcurve_is_empty(fcu)) {
@@ -679,7 +608,7 @@ void smooth_fcurve(FCurve *fcu)
   }
 
   /* recalculate handles */
-  calchandles_fcurve(fcu);
+  BKE_fcurve_handles_recalc(fcu);
 }
 
 /* ---------------- */
@@ -762,7 +691,7 @@ void sample_fcurve(FCurve *fcu)
   }
 
   /* recalculate channel's handles? */
-  calchandles_fcurve(fcu);
+  BKE_fcurve_handles_recalc(fcu);
 }
 
 /* **************************************************** */
@@ -1121,7 +1050,7 @@ static void paste_animedit_keys_fcurve(
 
     case KEYFRAME_PASTE_MERGE_OVER:
       /* remove all keys */
-      clear_fcurve_keys(fcu);
+      BKE_fcurve_delete_keys_all(fcu);
       break;
 
     case KEYFRAME_PASTE_MERGE_OVER_RANGE:
@@ -1148,7 +1077,7 @@ static void paste_animedit_keys_fcurve(
         }
 
         /* remove frames in the range */
-        delete_fcurve_keys(fcu);
+        BKE_fcurve_delete_keys_selected(fcu);
       }
       break;
     }
@@ -1182,7 +1111,7 @@ static void paste_animedit_keys_fcurve(
   }
 
   /* recalculate F-Curve's handles? */
-  calchandles_fcurve(fcu);
+  BKE_fcurve_handles_recalc(fcu);
 }
 
 const EnumPropertyItem rna_enum_keyframe_paste_offset_items[] = {
diff --git a/source/blender/editors/animation/keyframing.c b/source/blender/editors/animation/keyframing.c
index 2fa8907de71..9084b9bb214 100644
--- a/source/blender/editors/animation/keyframing.c
+++ b/source/blender/editors/animation/keyframing.c
@@ -639,7 +639,7 @@ int insert_vert_fcurve(
    * - we may calculate twice (due to auto-handle needing to be calculated twice)
    */
   if ((flag & INSERTKEY_FAST) == 0) {
-    calchandles_fcurve(fcu);
+    BKE_fcurve_handles_recalc(fcu);
   }
 
   /* return the index at which the keyframe was added */
@@ -1282,10 +1282,12 @@ static bool insert_keyframe_value(ReportList *reports,
     /* delete keyframe immediately before/after newly added */
     switch (insert_mode) {
       case KEYNEEDED_DELPREV:
-        delete_fcurve_key(fcu, fcu->totvert - 2, 1);
+        BKE_fcurve_delete_key(fcu, fcu->totvert - 2);
+        BKE_fcurve_handles_recalc(fcu);
         break;
       case KEYNEEDED_DELNEXT:
-        delete_fcurve_key(fcu, 1, 1);
+        BKE_fcurve_delete_key(fcu, 1);
+        BKE_fcurve_handles_recalc(fcu);
         break;
     }
 
@@ -1683,7 +1685,8 @@ static bool delete_keyframe_fcurve(AnimData *adt, FCurve *fcu, float cfra)
   i = BKE_fcurve_bezt_binarysearch_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);
+    BKE_fcurve_delete_key(fcu, i);
+    BKE_fcurve_handles_recalc(fcu);
 
     /* Only delete curve too if it won't be doing anything anymore */
     if (BKE_fcurve_is_empty(fcu)) {
@@ -2709,7 +2712,8 @@ static int delete_key_button_exec(bContext *C, wmOperator *op)
           i = BKE_fcurve_bezt_binarysearch_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);
+            BKE_fcurve_delete_key(fcu, i);
+            BKE_fcurve_handles_recalc(fcu);
             changed = true;
           }
         }
diff --git a/source/blender/editors/armature/armature_naming.c b/source/blender/editors/armature/armature_naming.c
index 1f02e24666d..4f329dbe449 100644
--- a/source/blender/editors/armature/armature_naming.c
+++ b/source/blender/editors/armature/armature_naming.c
@@ -13,6 +13,7 @@
 #include "MEM_guardedalloc.h"
 
 #include "DNA_armature_types.h"
+#include "DNA_camera_types.h"
 #include "DNA_constraint_types.h"
 #include "DNA_gpencil_modifier_types.h"
 #include "DNA_gpencil_types.h"
@@ -281,6 +282,17 @@ void ED_armature_bone_rename(Main *bmain,
         }
       }
 
+      /* fix camera focus */
+      if (ob->type == OB_CAMERA) {
+        Camera *cam = (Camera *)ob->data;
+        if ((cam->dof.focus_object != NULL) && (cam->dof.focus_object->data == arm)) {
+          if (STREQ(cam->dof.focus_subtarget, oldname)) {
+            BLI_strncpy(cam->dof.focus_subtarget, newname, MAXBONENAME);
+            DEG_id_tag_update(&cam->id, ID_RECALC_COPY_ON_WRITE);
+          }
+        }
+      }
+
       /* fix grease pencil modifiers and vertex groups */
       if (ob->type == OB_GPENCIL) {
 
diff --git a/source/blender/editors/armature/pose_lib.c b/source/blender/editors/armature/pose_lib.c
index b8e7c2624fd..ff187a52154 100644
--- a/source/blender/editors/armature/pose_lib.c
+++ b/source/blender/editors/armature/pose_lib.c
@@ -24,6 +24,7 @@
 #include "BKE_action.h"
 #include "BKE_animsys.h"
 #include "BKE_armature.h"
+#include "BKE_fcurve.h"
 #include "BKE_idprop.h"
 #include "BKE_lib_id.h"
 #include "BKE_main.h"
@@ -615,7 +616,8 @@ static int poselib_remove_exec(bContext *C, wmOperator *op)
       for (i = 0, bezt = fcu->bezt; i < fcu->totvert; i++, bezt++) {
         /* check if remove */
         if (IS_EQF(bezt->vec[1][0], (float)marker->frame)) {
-          delete_fcurve_key(fcu, i, 1);
+          BKE_fcurve_delete_key(fcu, i);
+          BKE_fcurve_handles_recalc(fcu);
           break;
         }
       }
@@ -1578,7 +1580,7 @@ static int poselib_preview_handle_event(bContext *UNUSED(C), wmOperator *op, con
     case EVT_PADMINUS:
       if (pld->searchstr[0]) {
         /* searching... */
-        poselib_preview_handle_search(pld, event->type, event->ascii);
+        poselib_preview_handle_search(pld, event->type, WM_event_utf8_to_ascii(event));
       }
       else {
         /* view manipulation (see above) */
@@ -1589,7 +1591,7 @@ static int poselib_preview_handle_event(bContext *UNUSED(C), wmOperator *op, con
 
     /* otherwise, assume that searching might be able to handle it */
     default:
-      poselib_preview_handle_search(pld, event->type, event->ascii);
+      poselib_preview_handle_search(pld, event->type, WM_event_utf8_to_ascii(event));
       break;
   }
 
diff --git a/source/blender/editors/curve/editcurve_add.c b/source/blender/editors/curve/editcurve_add.c
index ba5a7409ba7..ee6376ca95f 100644
--- a/source/blender/editors/curve/editcurve_add.c
+++ b/source/blender/editors/curve/editcurve_add.c
@@ -87,6 +87,8 @@ static const char *get_surf_defname(int type)
       return CTX_DATA_(BLT_I18NCONTEXT_ID_CURVE_LEGACY, "SurfCircle");
     case CU_PRIM_PATCH:
       return CTX_DATA_(BLT_I18NCONTEXT_ID_CURVE_LEGACY, "SurfPatch");
+    case CU_PRIM_TUBE:
+      return CTX_DATA_(BLT_I18NCONTEXT_ID_CURVE_LEGACY, "SurfCylinder");
     case CU_PRIM_SPHERE:
       return CTX_DATA_(BLT_I18NCONTEXT_ID_CURVE_LEGACY, "SurfSphere");
     case CU_PRIM_DONUT:
diff --git a/source/blender/editors/curve/editfont.c b/source/blender/editors/curve/editfont.c
index 611dbb2e80c..ceed12dcff1 100644
--- a/source/blender/editors/curve/editfont.c
+++ b/source/blender/editors/curve/editfont.c
@@ -59,7 +59,7 @@ static int kill_selection(Object *obedit, int ins);
 /** \name Internal Utilities
  * \{ */
 
-static char32_t findaccent(char32_t char1, uint code)
+static char32_t findaccent(char32_t char1, const char code)
 {
   char32_t new = 0;
 
@@ -1638,12 +1638,11 @@ static int insert_text_invoke(bContext *C, wmOperator *op, const wmEvent *event)
   Object *obedit = CTX_data_edit_object(C);
   Curve *cu = obedit->data;
   EditFont *ef = cu->editfont;
-  static int accentcode = 0;
-  uintptr_t ascii = event->ascii;
+  static bool accentcode = false;
   const bool alt = event->modifier & KM_ALT;
   const bool shift = event->modifier & KM_SHIFT;
   const bool ctrl = event->modifier & KM_CTRL;
-  int event_type = event->type, event_val = event->val;
+  char32_t insert_char_override = 0;
   char32_t inserted_text[2] = {0};
 
   if (RNA_struct_property_is_set(op->ptr, "text")) {
@@ -1652,48 +1651,47 @@ static int insert_text_invoke(bContext *C, wmOperator *op, const wmEvent *event)
 
   if (RNA_struct_property_is_set(op->ptr, "accent")) {
     if (ef->len != 0 && ef->pos > 0) {
-      accentcode = 1;
+      accentcode = true;
     }
     return OPERATOR_FINISHED;
   }
 
-  /* tab should exit editmode, but we allow it to be typed using modifier keys */
-  if (event_type == EVT_TABKEY) {
-    if ((alt || ctrl || shift) == 0) {
-      return OPERATOR_PASS_THROUGH;
-    }
-
-    ascii = 9;
-  }
-
-  if (event_type == EVT_BACKSPACEKEY) {
+  if (event->type == EVT_BACKSPACEKEY) {
     if (alt && ef->len != 0 && ef->pos > 0) {
-      accentcode = 1;
+      accentcode = true;
     }
     return OPERATOR_PASS_THROUGH;
   }
 
-  if (event_val && (ascii || event->utf8_buf[0])) {
-    /* handle case like TAB (== 9) */
-    if ((ascii > 31 && ascii < 254 && ascii != 127) || (ELEM(ascii, 13, 10)) || (ascii == 8) ||
-        (event->utf8_buf[0])) {
+  /* Tab typically exit edit-mode, but we allow it to be typed using modifier keys. */
+  if (event->type == EVT_TABKEY) {
+    if ((alt || ctrl || shift) == 0) {
+      return OPERATOR_PASS_THROUGH;
+    }
+    insert_char_override = '\t';
+  }
 
+  if (insert_char_override || event->utf8_buf[0]) {
+    if (insert_char_override) {
+      /* Handle case like TAB ('\t'). */
+      inserted_text[0] = insert_char_override;
+      insert_into_textbuf(obedit, insert_char_override);
+      text_update_edited(C, obedit, FO_EDIT);
+    }
+    else {
+      BLI_assert(event->utf8_buf[0]);
       if (accentcode) {
         if (ef->pos > 0) {
-          inserted_text[0] = findaccent(ef->textbuf[ef->pos - 1], ascii);
+          inserted_text[0] = findaccent(ef->textbuf[ef->pos - 1],
+                                        BLI_str_utf8_as_unicode(event->utf8_buf));
           ef->textbuf[ef->pos - 1] = inserted_text[0];
         }
-        accentcode = 0;
+        accentcode = false;
       }
       else if (event->utf8_buf[0]) {
         inserted_text[0] = BLI_str_utf8_as_unicode(event->utf8_buf);
-        ascii = inserted_text[0];
-        insert_into_textbuf(obedit, ascii);
-        accentcode = 0;
-      }
-      else if (ascii) {
-        insert_into_textbuf(obedit, ascii);
-        accentcode = 0;
+        insert_into_textbuf(obedit, inserted_text[0]);
+        accentcode = false;
       }
       else {
         BLI_assert(0);
@@ -1702,11 +1700,6 @@ static int insert_text_invoke(bContext *C, wmOperator *op, const wmEvent *event)
       kill_selection(obedit, 1);
       text_update_edited(C, obedit, FO_EDIT);
     }
-    else {
-      inserted_text[0] = ascii;
-      insert_into_textbuf(obedit, ascii);
-      text_update_edited(C, obedit, FO_EDIT);
-    }
   }
   else {
     return OPERATOR_PASS_THROUGH;
@@ -1720,11 +1713,6 @@ static int insert_text_invoke(bContext *C, wmOperator *op, const wmEvent *event)
     RNA_string_set(op->ptr, "text", inserted_utf8);
   }
 
-  /* reset property? */
-  if (event_val == 0) {
-    accentcode = 0;
-  }
-
   return OPERATOR_FINISHED;
 }
 
diff --git a/source/blender/editors/curves/intern/curves_ops.cc b/source/blender/editors/curves/intern/curves_ops.cc
index a4492a1d516..f4d1c8046f1 100644
--- a/source/blender/editors/curves/intern/curves_ops.cc
+++ b/source/blender/editors/curves/intern/curves_ops.cc
@@ -528,9 +528,6 @@ static void snap_curves_to_surface_exec_object(Object &curves_ob,
 
   Mesh &surface_mesh = *static_cast<Mesh *>(surface_ob.data);
 
-  MeshComponent surface_mesh_component;
-  surface_mesh_component.replace(&surface_mesh, GeometryOwnershipType::ReadOnly);
-
   VArraySpan<float2> surface_uv_map;
   if (curves_id.surface_uv_map != nullptr) {
     const bke::AttributeAccessor surface_attributes = bke::mesh_attributes(surface_mesh);
diff --git a/source/blender/editors/gpencil/gpencil_convert.c b/source/blender/editors/gpencil/gpencil_convert.c
index 25b5466e260..e02a82f4555 100644
--- a/source/blender/editors/gpencil/gpencil_convert.c
+++ b/source/blender/editors/gpencil/gpencil_convert.c
@@ -588,7 +588,7 @@ static void gpencil_stroke_path_animation(bContext *C,
   }
 
   /* As we used INSERTKEY_FAST mode, we need to recompute all curve's handles now */
-  calchandles_fcurve(fcu);
+  BKE_fcurve_handles_recalc(fcu);
 
   WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | NA_EDITED, NULL);
 
diff --git a/source/blender/editors/gpencil/gpencil_edit.c b/source/blender/editors/gpencil/gpencil_edit.c
index 06f3c169fa9..71cf9b1fafd 100644
--- a/source/blender/editors/gpencil/gpencil_edit.c
+++ b/source/blender/editors/gpencil/gpencil_edit.c
@@ -3709,35 +3709,44 @@ static int gpencil_stroke_flip_exec(bContext *C, wmOperator *op)
     return OPERATOR_CANCELLED;
   }
 
+  const bool is_multiedit = (bool)GPENCIL_MULTIEDIT_SESSIONS_ON(gpd);
   const bool is_curve_edit = (bool)GPENCIL_CURVE_EDIT_SESSIONS_ON(gpd);
+
   bool changed = false;
-  /* read all selected strokes */
+  /* Read all selected strokes. */
   CTX_DATA_BEGIN (C, bGPDlayer *, gpl, editable_gpencil_layers) {
-    bGPDframe *gpf = gpl->actframe;
-    if (gpf == NULL) {
-      continue;
-    }
+    bGPDframe *init_gpf = (is_multiedit) ? gpl->frames.first : gpl->actframe;
 
-    LISTBASE_FOREACH (bGPDstroke *, gps, &gpf->strokes) {
-      if (gps->flag & GP_STROKE_SELECT) {
-        /* skip strokes that are invalid for current view */
-        if (ED_gpencil_stroke_can_use(C, gps) == false) {
-          continue;
-        }
-        /* check if the color is editable */
-        if (ED_gpencil_stroke_material_editable(ob, gpl, gps) == false) {
+    for (bGPDframe *gpf = init_gpf; gpf; gpf = gpf->next) {
+      if ((gpf == gpl->actframe) || ((gpf->flag & GP_FRAME_SELECT) && (is_multiedit))) {
+        if (gpf == NULL) {
           continue;
         }
+        LISTBASE_FOREACH (bGPDstroke *, gps, &gpf->strokes) {
+          if (gps->flag & GP_STROKE_SELECT) {
+            /* skip strokes that are invalid for current view */
+            if (ED_gpencil_stroke_can_use(C, gps) == false) {
+              continue;
+            }
+            /* check if the color is editable */
+            if (ED_gpencil_stroke_material_editable(ob, gpl, gps) == false) {
+              continue;
+            }
 
-        if (is_curve_edit) {
-          BKE_report(op->reports, RPT_ERROR, "Not implemented!");
-        }
-        else {
-          /* Flip stroke. */
-          BKE_gpencil_stroke_flip(gps);
+            if (is_curve_edit) {
+              BKE_report(op->reports, RPT_ERROR, "Not implemented!");
+            }
+            else {
+              /* Flip stroke. */
+              BKE_gpencil_stroke_flip(gps);
+              changed = true;
+            }
+          }
         }
-
-        changed = true;
+      }
+      /* If not multi-edit, exit loop. */
+      if (!is_multiedit) {
+        break;
       }
     }
   }
diff --git a/source/blender/editors/include/ED_anim_api.h b/source/blender/editors/include/ED_anim_api.h
index ac3b4133007..cc3c68abc55 100644
--- a/source/blender/editors/include/ED_anim_api.h
+++ b/source/blender/editors/include/ED_anim_api.h
@@ -1046,6 +1046,8 @@ void ED_keymap_anim(struct wmKeyConfig *keyconf);
 void ED_operatormacros_graph(void);
 /* space_action */
 void ED_operatormacros_action(void);
+/* space_nla*/
+void ED_operatormacros_nla(void);
 
 /** \} */
 
diff --git a/source/blender/editors/include/ED_keyframes_edit.h b/source/blender/editors/include/ED_keyframes_edit.h
index 9596c3a7fed..1d63e01c84b 100644
--- a/source/blender/editors/include/ED_keyframes_edit.h
+++ b/source/blender/editors/include/ED_keyframes_edit.h
@@ -388,9 +388,6 @@ bool keyframe_region_circle_test(const KeyframeEdit_CircleData *data_circle, con
 /* ************************************************ */
 /* Destructive Editing API (keyframes_general.c) */
 
-void delete_fcurve_key(struct FCurve *fcu, int index, bool do_recalc);
-bool delete_fcurve_keys(struct FCurve *fcu);
-void clear_fcurve_keys(struct FCurve *fcu);
 bool duplicate_fcurve_keys(struct FCurve *fcu);
 float get_default_rna_value(struct FCurve *fcu, struct PropertyRNA *prop, struct PointerRNA *ptr);
 
diff --git a/source/blender/editors/include/ED_mesh.h b/source/blender/editors/include/ED_mesh.h
index 30a98129ee6..b73b62d5a9d 100644
--- a/source/blender/editors/include/ED_mesh.h
+++ b/source/blender/editors/include/ED_mesh.h
@@ -137,7 +137,6 @@ void EDBM_update_extern(struct Mesh *me, bool do_tessellation, bool is_destructi
  */
 struct UvElementMap *BM_uv_element_map_create(struct BMesh *bm,
                                               const struct Scene *scene,
-                                              bool face_selected,
                                               bool uv_selected,
                                               bool use_winding,
                                               bool do_islands);
@@ -425,6 +424,9 @@ void paintvert_select_ungrouped(struct Object *ob, bool extend, bool flush_flags
 void paintvert_flush_flags(struct Object *ob);
 void paintvert_tag_select_update(struct bContext *C, struct Object *ob);
 
+void paintvert_hide(struct bContext *C, struct Object *ob, bool unselected);
+void paintvert_reveal(struct bContext *C, struct Object *ob, bool select);
+
 /* mirrtopo */
 typedef struct MirrTopoStore_t {
   intptr_t *index_lookup;
diff --git a/source/blender/editors/include/UI_abstract_view.hh b/source/blender/editors/include/UI_abstract_view.hh
index 82f81f1702b..dfddace8899 100644
--- a/source/blender/editors/include/UI_abstract_view.hh
+++ b/source/blender/editors/include/UI_abstract_view.hh
@@ -3,11 +3,16 @@
 /** \file
  * \ingroup editorui
  *
- * Base for all views (UIs to display data sets), supporting common features.
+ * Base class for all views (UIs to display data sets) and view items, supporting common features.
  * https://wiki.blender.org/wiki/Source/Interface/Views
  *
  * One of the most important responsibilities of the base class is managing reconstruction,
- * enabling state that is persistent over reconstructions/redraws.
+ * enabling state that is persistent over reconstructions/redraws. Other features:
+ * - Renaming
+ * - Custom context menus
+ * - Notifier listening
+ * - Drag controllers (dragging view items)
+ * - Drop controllers (dropping onto/into view items)
  */
 
 #pragma once
@@ -15,13 +20,28 @@
 #include <array>
 #include <memory>
 
+#include "DNA_defs.h"
+
 #include "BLI_span.hh"
+#include "BLI_string_ref.hh"
 
+struct bContext;
+struct uiBlock;
+struct uiBut;
+struct uiLayout;
+struct uiViewItemHandle;
+struct wmDrag;
 struct wmNotifier;
 
 namespace blender::ui {
 
+class AbstractViewItem;
+class AbstractViewItemDropController;
+class AbstractViewItemDragController;
+
 class AbstractView {
+  friend class AbstractViewItem;
+
   bool is_reconstructed_ = false;
   /**
    * Only one item can be renamed at a time. So rather than giving each item an own rename buffer
@@ -38,6 +58,12 @@ class AbstractView {
   /** Listen to a notifier, returning true if a redraw is needed. */
   virtual bool listen(const wmNotifier &) const;
 
+  /**
+   * Makes \a item valid for display in this view. Behavior is undefined for items not registered
+   * with this.
+   */
+  void register_item(AbstractViewItem &item);
+
   /** Only one item can be renamed at a time. */
   bool is_renaming() const;
   /** \return If renaming was started successfully. */
@@ -58,7 +84,6 @@ class AbstractView {
    * After this, reconstruction is complete (see #is_reconstructed()).
    */
   void update_from_old(uiBlock &new_block);
-
   /**
    * Check if the view is fully (re-)constructed. That means, both the build function and
    * #update_from_old() have finished.
@@ -66,4 +91,190 @@ class AbstractView {
   bool is_reconstructed() const;
 };
 
+class AbstractViewItem {
+  friend class AbstractView;
+  friend class ViewItemAPIWrapper;
+
+ protected:
+  /**
+   * The view this item is a part of, and was registered for using #AbstractView::register_item().
+   * If this wasn't done, the behavior of items is undefined.
+   */
+  AbstractView *view_ = nullptr;
+  bool is_active_ = false;
+  bool is_renaming_ = false;
+
+ public:
+  virtual ~AbstractViewItem() = default;
+
+  virtual void build_context_menu(bContext &C, uiLayout &column) const;
+
+  /**
+   * Queries if the view item supports renaming in principle. Renaming may still fail, e.g. if
+   * another item is already being renamed.
+   */
+  virtual bool supports_renaming() const;
+  /**
+   * Try renaming the item, or the data it represents. Can assume
+   * #AbstractViewItem::supports_renaming() returned true. Sub-classes that override this should
+   * usually call this, unless they have a custom #AbstractViewItem.matches() implementation.
+   *
+   * \return True if the renaming was successful.
+   */
+  virtual bool rename(StringRefNull new_name);
+  /**
+   * Get the string that should be used for renaming, typically the item's label. This string will
+   * not be modified, but if the renaming is canceled, the value will be reset to this.
+   */
+  virtual StringRef get_rename_string() const;
+
+  /**
+   * If an item wants to support being dragged, it has to return a drag controller here.
+   * That is an object implementing #AbstractViewItemDragController.
+   */
+  virtual std::unique_ptr<AbstractViewItemDragController> create_drag_controller() const;
+  /**
+   * If an item wants to support dropping data into it, it has to return a drop controller here.
+   * That is an object implementing #AbstractViewItemDropController.
+   *
+   * \note This drop controller may be requested for each event. The view doesn't keep a drop
+   *       controller around currently. So it can not contain persistent state.
+   */
+  virtual std::unique_ptr<AbstractViewItemDropController> create_drop_controller() const;
+
+  /** Get the view this item is registered for using #AbstractView::register_item(). */
+  AbstractView &get_view() const;
+
+  /**
+   * Requires the view to have completed reconstruction, see #is_reconstructed(). Otherwise we
+   * can't be sure about the item state.
+   */
+  bool is_active() const;
+
+  bool is_renaming() const;
+  void begin_renaming();
+  void end_renaming();
+  void rename_apply();
+
+  template<typename ToType = AbstractViewItem>
+  static ToType *from_item_handle(uiViewItemHandle *handle);
+
+ protected:
+  AbstractViewItem() = default;
+
+  /**
+   * Compare this item's identity to \a other to check if they represent the same data.
+   * Implementations can assume that the types match already (caller must check).
+   *
+   * Used to recognize an item from a previous redraw, to be able to keep its state (e.g. active,
+   * renaming, etc.).
+   */
+  virtual bool matches(const AbstractViewItem &other) const = 0;
+
+  /**
+   * Copy persistent state (e.g. active, selection, etc.) from a matching item of
+   * the last redraw to this item. If sub-classes introduce more advanced state they should
+   * override this and make it update their state accordingly.
+   *
+   * \note Always call the base class implementation when overriding this!
+   */
+  virtual void update_from_old(const AbstractViewItem &old);
+
+  /**
+   * Add a text button for renaming the item to \a block. This must be used for the built-in
+   * renaming to work. This button is meant to appear temporarily. It is removed when renaming is
+   * done.
+   */
+  void add_rename_button(uiBlock &block);
+};
+
+template<typename ToType> ToType *AbstractViewItem::from_item_handle(uiViewItemHandle *handle)
+{
+  static_assert(std::is_base_of<AbstractViewItem, ToType>::value,
+                "Type must derive from and implement the AbstractViewItem interface");
+
+  return dynamic_cast<ToType *>(reinterpret_cast<AbstractViewItem *>(handle));
+}
+
+/* ---------------------------------------------------------------------- */
+/** \name Drag 'n Drop
+ * \{ */
+
+/**
+ * Class to enable dragging a view item. An item can return a drop controller for itself by
+ * implementing #AbstractViewItem::create_drag_controller().
+ */
+class AbstractViewItemDragController {
+ protected:
+  AbstractView &view_;
+
+ public:
+  AbstractViewItemDragController(AbstractView &view);
+  virtual ~AbstractViewItemDragController() = default;
+
+  virtual int get_drag_type() const = 0;
+  virtual void *create_drag_data() const = 0;
+  virtual void on_drag_start();
+
+  /** Request the view the item is registered for as type #ViewType. Throws a `std::bad_cast`
+   * exception if the view is not of the requested type. */
+  template<class ViewType> inline ViewType &get_view() const;
+};
+
+/**
+ * Class to define the behavior when dropping something onto/into a view item, plus the behavior
+ * when dragging over this item. An item can return a drop controller for itself via a custom
+ * implementation of #AbstractViewItem::create_drop_controller().
+ */
+class AbstractViewItemDropController {
+ protected:
+  AbstractView &view_;
+
+ public:
+  AbstractViewItemDropController(AbstractView &view);
+  virtual ~AbstractViewItemDropController() = default;
+
+  /**
+   * Check if the data dragged with \a drag can be dropped on the item this controller is for.
+   * \param r_disabled_hint: Return a static string to display to the user, explaining why dropping
+   *                         isn't possible on this item. Shouldn't be done too aggressively, e.g.
+   *                         don't set this if the drag-type can't be dropped here; only if it can
+   *                         but there's another reason it can't be dropped.
+   *                         Can assume this is a non-null pointer.
+   */
+  virtual bool can_drop(const wmDrag &drag, const char **r_disabled_hint) const = 0;
+  /**
+   * Custom text to display when dragging over a view item. Should explain what happens when
+   * dropping the data onto this item. Will only be used if #AbstractViewItem::can_drop()
+   * returns true, so the implementing override doesn't have to check that again.
+   * The returned value must be a translated string.
+   */
+  virtual std::string drop_tooltip(const wmDrag &drag) const = 0;
+  /**
+   * Execute the logic to apply a drop of the data dragged with \a drag onto/into the item this
+   * controller is for.
+   */
+  virtual bool on_drop(struct bContext *C, const wmDrag &drag) = 0;
+
+  /** Request the view the item is registered for as type #ViewType. Throws a `std::bad_cast`
+   * exception if the view is not of the requested type. */
+  template<class ViewType> inline ViewType &get_view() const;
+};
+
+template<class ViewType> ViewType &AbstractViewItemDragController::get_view() const
+{
+  static_assert(std::is_base_of<AbstractView, ViewType>::value,
+                "Type must derive from and implement the ui::AbstractView interface");
+  return dynamic_cast<ViewType &>(view_);
+}
+
+template<class ViewType> ViewType &AbstractViewItemDropController::get_view() const
+{
+  static_assert(std::is_base_of<AbstractView, ViewType>::value,
+                "Type must derive from and implement the ui::AbstractView interface");
+  return dynamic_cast<ViewType &>(view_);
+}
+
+/** \} */
+
 }  // namespace blender::ui
diff --git a/source/blender/editors/include/UI_grid_view.hh b/source/blender/editors/include/UI_grid_view.hh
index cabc49e411c..805198f38ef 100644
--- a/source/blender/editors/include/UI_grid_view.hh
+++ b/source/blender/editors/include/UI_grid_view.hh
@@ -19,7 +19,7 @@
 struct bContext;
 struct PreviewImage;
 struct uiBlock;
-struct uiButGridTile;
+struct uiButViewItem;
 struct uiLayout;
 struct View2D;
 struct wmNotifier;
@@ -32,43 +32,31 @@ class AbstractGridView;
 /** \name Grid-View Item Type
  * \{ */
 
-class AbstractGridViewItem {
+class AbstractGridViewItem : public AbstractViewItem {
   friend class AbstractGridView;
   friend class GridViewLayoutBuilder;
 
   const AbstractGridView *view_;
 
-  bool is_active_ = false;
-
  protected:
   /** Reference to a string that uniquely identifies this item in the view. */
   StringRef identifier_{};
-  /** Every visible item gets a button of type #UI_BTYPE_GRID_TILE during the layout building. */
-  uiButGridTile *grid_tile_but_ = nullptr;
+  /** Every visible item gets a button of type #UI_BTYPE_VIEW_ITEM during the layout building. */
+  uiButViewItem *view_item_but_ = nullptr;
 
  public:
   virtual ~AbstractGridViewItem() = default;
 
   virtual void build_grid_tile(uiLayout &layout) const = 0;
 
-  /**
-   * Compare this item's identifier to \a other to check if they represent the same data.
-   * Used to recognize an item from a previous redraw, to be able to keep its state (e.g. active,
-   * renaming, etc.).
-   */
-  bool matches(const AbstractGridViewItem &other) const;
-
   const AbstractGridView &get_view() const;
 
-  /**
-   * Requires the tree to have completed reconstruction, see #is_reconstructed(). Otherwise we
-   * can't be sure about the item state.
-   */
-  bool is_active() const;
-
  protected:
   AbstractGridViewItem(StringRef identifier);
 
+  /** See AbstractViewItem::matches(). */
+  virtual bool matches(const AbstractViewItem &other) const override;
+
   /** Called when the item's state changes from inactive to active. */
   virtual void on_activate();
   /**
@@ -78,13 +66,6 @@ class AbstractGridViewItem {
   virtual std::optional<bool> should_be_active() const;
 
   /**
-   * Copy persistent state (e.g. active, selection, etc.) from a matching item of
-   * the last redraw to this item. If sub-classes introduce more advanced state they should
-   * override this and make it update their state accordingly.
-   */
-  virtual void update_from_old(const AbstractGridViewItem &old);
-
-  /**
    * Activates this item, deactivates other items, and calls the
    * #AbstractGridViewItem::on_activate() function.
    * Requires the tree to have completed reconstruction, see #is_reconstructed(). Otherwise the
diff --git a/source/blender/editors/include/UI_interface.h b/source/blender/editors/include/UI_interface.h
index f39c62d8e2b..a8d25b75036 100644
--- a/source/blender/editors/include/UI_interface.h
+++ b/source/blender/editors/include/UI_interface.h
@@ -74,10 +74,8 @@ typedef struct uiLayout uiLayout;
 typedef struct uiPopupBlockHandle uiPopupBlockHandle;
 /* C handle for C++ #ui::AbstractView type. */
 typedef struct uiViewHandle uiViewHandle;
-/* C handle for C++ #ui::AbstractTreeViewItem type. */
-typedef struct uiTreeViewItemHandle uiTreeViewItemHandle;
-/* C handle for C++ #ui::AbstractGridViewItem type. */
-typedef struct uiGridViewItemHandle uiGridViewItemHandle;
+/* C handle for C++ #ui::AbstractViewItem type. */
+typedef struct uiViewItemHandle uiViewItemHandle;
 
 /* Defines */
 
@@ -391,10 +389,8 @@ typedef enum {
   /** Resize handle (resize uilist). */
   UI_BTYPE_GRIP = 57 << 9,
   UI_BTYPE_DECORATOR = 58 << 9,
-  /* An item in a tree view. Parent items may be collapsible. */
-  UI_BTYPE_TREEROW = 59 << 9,
-  /* An item in a grid view. */
-  UI_BTYPE_GRID_TILE = 60 << 9,
+  /* An item a view (see #ui::AbstractViewItem). */
+  UI_BTYPE_VIEW_ITEM = 59 << 9,
 } eButType;
 
 #define BUTTYPE (63 << 9)
@@ -1685,8 +1681,6 @@ int UI_search_items_find_index(uiSearchItems *items, const char *name);
  */
 void UI_but_hint_drawstr_set(uiBut *but, const char *string);
 
-void UI_but_treerow_indentation_set(uiBut *but, int indentation);
-
 void UI_but_node_link_set(uiBut *but, struct bNodeSocket *socket, const float draw_color[4]);
 
 void UI_but_number_step_size_set(uiBut *but, float step_size);
@@ -3201,45 +3195,44 @@ void UI_interface_tag_script_reload(void);
 void UI_block_views_listen(const uiBlock *block,
                            const struct wmRegionListenerParams *listener_params);
 
-bool UI_grid_view_item_is_active(const uiGridViewItemHandle *item_handle);
-bool UI_tree_view_item_is_active(const uiTreeViewItemHandle *item);
-bool UI_grid_view_item_matches(const uiGridViewItemHandle *a, const uiGridViewItemHandle *b);
-bool UI_tree_view_item_matches(const uiTreeViewItemHandle *a, const uiTreeViewItemHandle *b);
+bool UI_view_item_is_active(const uiViewItemHandle *item_handle);
+bool UI_view_item_matches(const uiViewItemHandle *a_handle, const uiViewItemHandle *b_handle);
 /**
- * Attempt to start dragging the tree-item \a item_. This will not work if the tree item doesn't
- * support dragging, i.e. it won't create a drag-controller upon request.
- * \return True if dragging started successfully, otherwise false.
+ * Can \a item_handle be renamed right now? Note that this isn't just a mere wrapper around
+ * #AbstractViewItem::supports_renaming(). This also checks if there is another item being renamed,
+ * and returns false if so.
  */
-bool UI_tree_view_item_drag_start(struct bContext *C, uiTreeViewItemHandle *item_);
-bool UI_tree_view_item_can_drop(const uiTreeViewItemHandle *item_,
-                                const struct wmDrag *drag,
-                                const char **r_disabled_hint);
-char *UI_tree_view_item_drop_tooltip(const uiTreeViewItemHandle *item, const struct wmDrag *drag);
+bool UI_view_item_can_rename(const uiViewItemHandle *item_handle);
+void UI_view_item_begin_rename(uiViewItemHandle *item_handle);
+
+void UI_view_item_context_menu_build(struct bContext *C,
+                                     const uiViewItemHandle *item_handle,
+                                     uiLayout *column);
+
 /**
- * Let a tree-view item handle a drop event.
- * \return True if the drop was handled by the tree-view item.
+ * Attempt to start dragging \a item_. This will not work if the view item doesn't
+ * support dragging, i.e. if it won't create a drag-controller upon request.
+ * \return True if dragging started successfully, otherwise false.
  */
-bool UI_tree_view_item_drop_handle(struct bContext *C,
-                                   const uiTreeViewItemHandle *item_,
-                                   const struct ListBase *drags);
+bool UI_view_item_drag_start(struct bContext *C, const uiViewItemHandle *item_);
+bool UI_view_item_can_drop(const uiViewItemHandle *item_,
+                           const struct wmDrag *drag,
+                           const char **r_disabled_hint);
+char *UI_view_item_drop_tooltip(const uiViewItemHandle *item, const struct wmDrag *drag);
 /**
- * Can \a item_handle be renamed right now? Not that this isn't just a mere wrapper around
- * #AbstractTreeViewItem::can_rename(). This also checks if there is another item being renamed,
- * and returns false if so.
+ * Let a view item handle a drop event.
+ * \return True if the drop was handled by the view item.
  */
-bool UI_tree_view_item_can_rename(const uiTreeViewItemHandle *item_handle);
-void UI_tree_view_item_begin_rename(uiTreeViewItemHandle *item_handle);
-
-void UI_tree_view_item_context_menu_build(struct bContext *C,
-                                          const uiTreeViewItemHandle *item,
-                                          uiLayout *column);
+bool UI_view_item_drop_handle(struct bContext *C,
+                              const uiViewItemHandle *item_,
+                              const struct ListBase *drags);
 
 /**
- * \param xy: Coordinate to find a tree-row item at, in window space.
+ * \param xy: Coordinate to find a view item at, in window space.
  */
-uiTreeViewItemHandle *UI_block_tree_view_find_item_at(const struct ARegion *region,
-                                                      const int xy[2]) ATTR_NONNULL(1, 2);
-uiTreeViewItemHandle *UI_block_tree_view_find_active_item(const struct ARegion *region);
+uiViewItemHandle *UI_region_views_find_item_at(const struct ARegion *region, const int xy[2])
+    ATTR_NONNULL();
+uiViewItemHandle *UI_region_views_find_active_item(const struct ARegion *region);
 
 #ifdef __cplusplus
 }
diff --git a/source/blender/editors/include/UI_tree_view.hh b/source/blender/editors/include/UI_tree_view.hh
index 9527df590b7..872a6085060 100644
--- a/source/blender/editors/include/UI_tree_view.hh
+++ b/source/blender/editors/include/UI_tree_view.hh
@@ -9,7 +9,6 @@
 
 #pragma once
 
-#include <array>
 #include <functional>
 #include <memory>
 #include <string>
@@ -25,18 +24,13 @@
 struct bContext;
 struct uiBlock;
 struct uiBut;
-struct uiButTreeRow;
+struct uiButViewItem;
 struct uiLayout;
-struct wmDrag;
-struct wmEvent;
-struct wmNotifier;
 
 namespace blender::ui {
 
 class AbstractTreeView;
 class AbstractTreeViewItem;
-class AbstractTreeViewItemDropController;
-class AbstractTreeViewItemDragController;
 
 /* ---------------------------------------------------------------------- */
 /** \name Tree-View Item Container
@@ -153,7 +147,7 @@ class AbstractTreeView : public AbstractView, public TreeViewItemContainer {
  * It also stores state information that needs to be persistent over redraws, like the collapsed
  * state.
  */
-class AbstractTreeViewItem : public TreeViewItemContainer {
+class AbstractTreeViewItem : public AbstractViewItem, public TreeViewItemContainer {
   friend class AbstractTreeView;
   friend class TreeViewLayoutBuilder;
   /* Higher-level API. */
@@ -161,20 +155,17 @@ class AbstractTreeViewItem : public TreeViewItemContainer {
 
  private:
   bool is_open_ = false;
-  bool is_active_ = false;
-  bool is_renaming_ = false;
 
  protected:
   /** This label is used as the default way to identifying an item within its parent. */
   std::string label_{};
-  /** Every visible item gets a button of type #UI_BTYPE_TREEROW during the layout building. */
-  uiButTreeRow *tree_row_but_ = nullptr;
+  /** Every visible item gets a button of type #UI_BTYPE_VIEW_ITEM during the layout building. */
+  uiButViewItem *view_item_but_ = nullptr;
 
  public:
   virtual ~AbstractTreeViewItem() = default;
 
   virtual void build_row(uiLayout &row) = 0;
-  virtual void build_context_menu(bContext &C, uiLayout &column) const;
 
   AbstractTreeView &get_tree_view() const;
 
@@ -186,11 +177,6 @@ class AbstractTreeViewItem : public TreeViewItemContainer {
    * can't be sure about the item state.
    */
   bool is_collapsed() const;
-  /**
-   * Requires the tree to have completed reconstruction, see #is_reconstructed(). Otherwise we
-   * can't be sure about the item state.
-   */
-  bool is_active() const;
 
  protected:
   /**
@@ -203,31 +189,21 @@ class AbstractTreeViewItem : public TreeViewItemContainer {
    */
   virtual std::optional<bool> should_be_active() const;
 
-  /**
-   * Queries if the tree-view item supports renaming in principle. Renaming may still fail, e.g. if
-   * another item is already being renamed.
-   */
-  virtual bool supports_renaming() const;
-  /**
-   * Try renaming the item, or the data it represents. Can assume
-   * #AbstractTreeViewItem::supports_renaming() returned true. Sub-classes that override this
-   * should usually call this, unless they have a custom #AbstractTreeViewItem.matches().
-   *
-   * \return True if the renaming was successful.
-   */
-  virtual bool rename(StringRefNull new_name);
+  /** See AbstractViewItem::get_rename_string(). */
+  virtual StringRef get_rename_string() const override;
+  /** See AbstractViewItem::rename(). */
+  virtual bool rename(StringRefNull new_name) override;
 
   /**
    * Return whether the item can be collapsed. Used to disable collapsing for items with children.
    */
   virtual bool supports_collapsing() const;
 
-  /**
-   * Copy persistent state (e.g. is-collapsed flag, selection, etc.) from a matching item of
-   * the last redraw to this item. If sub-classes introduce more advanced state they should
-   * override this and make it update their state accordingly.
-   */
-  virtual void update_from_old(const AbstractTreeViewItem &old);
+  /** See #AbstractViewItem::matches(). */
+  virtual bool matches(const AbstractViewItem &other) const override;
+
+  /** See #AbstractViewItem::update_from_old(). */
+  virtual void update_from_old(const AbstractViewItem &old) override;
 
   /**
    * Compare this item to \a other to check if they represent the same data.
@@ -235,22 +211,11 @@ class AbstractTreeViewItem : public TreeViewItemContainer {
    * open/closed, active, etc.). Items are only matched if their parents also match.
    * By default this just matches the item's label (if the parents match!). If that isn't
    * good enough for a sub-class, that can override it.
-   */
-  virtual bool matches(const AbstractTreeViewItem &other) const;
-
-  /**
-   * If an item wants to support being dragged, it has to return a drag controller here.
-   * That is an object implementing #AbstractTreeViewItemDragController.
-   */
-  virtual std::unique_ptr<AbstractTreeViewItemDragController> create_drag_controller() const;
-  /**
-   * If an item wants to support dropping data into it, it has to return a drop controller here.
-   * That is an object implementing #AbstractTreeViewItemDropController.
    *
-   * \note This drop controller may be requested for each event. The tree-view doesn't keep a drop
-   *       controller around currently. So it can not contain persistent state.
+   * TODO #matches_single() is a rather temporary name, used to indicate that this only compares
+   * the item itself, not the parents. Item matching is expected to change quite a bit anyway.
    */
-  virtual std::unique_ptr<AbstractTreeViewItemDropController> create_drop_controller() const;
+  virtual bool matches_single(const AbstractTreeViewItem &other) const;
 
   /**
    * Activates this item, deactivates other items, calls the #AbstractTreeViewItem::on_activate()
@@ -268,29 +233,24 @@ class AbstractTreeViewItem : public TreeViewItemContainer {
    */
   bool is_hovered() const;
   bool is_collapsible() const;
-  bool is_renaming() const;
 
   void ensure_parents_uncollapsed();
 
-  uiButTreeRow *tree_row_button();
+  uiButViewItem *view_item_button();
 
  private:
-  static void rename_button_fn(bContext *, void *, char *);
-  static AbstractTreeViewItem *find_tree_item_from_rename_button(const uiBut &but);
   static void tree_row_click_fn(struct bContext *, void *, void *);
   static void collapse_chevron_click_fn(bContext *, void *but_arg1, void *);
   static bool is_collapse_chevron_but(const uiBut *but);
 
   /** See #AbstractTreeView::change_state_delayed() */
   void change_state_delayed();
-  void end_renaming();
 
   void add_treerow_button(uiBlock &block);
   void add_indent(uiLayout &row) const;
   void add_collapse_chevron(uiBlock &block) const;
   void add_rename_button(uiLayout &row);
 
-  bool matches_including_parents(const AbstractTreeViewItem &other) const;
   bool has_active_child() const;
   int count_parents() const;
 };
@@ -298,69 +258,6 @@ class AbstractTreeViewItem : public TreeViewItemContainer {
 /** \} */
 
 /* ---------------------------------------------------------------------- */
-/** \name Drag 'n Drop
- * \{ */
-
-/**
- * Class to enable dragging a tree-item. An item can return a drop controller for itself via a
- * custom implementation of #AbstractTreeViewItem::create_drag_controller().
- */
-class AbstractTreeViewItemDragController {
- protected:
-  AbstractTreeView &tree_view_;
-
- public:
-  AbstractTreeViewItemDragController(AbstractTreeView &tree_view);
-  virtual ~AbstractTreeViewItemDragController() = default;
-
-  virtual int get_drag_type() const = 0;
-  virtual void *create_drag_data() const = 0;
-  virtual void on_drag_start();
-
-  template<class TreeViewType> inline TreeViewType &tree_view() const;
-};
-
-/**
- * Class to customize the drop behavior of a tree-item, plus the behavior when dragging over this
- * item. An item can return a drop controller for itself via a custom implementation of
- * #AbstractTreeViewItem::create_drop_controller().
- */
-class AbstractTreeViewItemDropController {
- protected:
-  AbstractTreeView &tree_view_;
-
- public:
-  AbstractTreeViewItemDropController(AbstractTreeView &tree_view);
-  virtual ~AbstractTreeViewItemDropController() = default;
-
-  /**
-   * Check if the data dragged with \a drag can be dropped on the item this controller is for.
-   * \param r_disabled_hint: Return a static string to display to the user, explaining why dropping
-   *                         isn't possible on this item. Shouldn't be done too aggressively, e.g.
-   *                         don't set this if the drag-type can't be dropped here; only if it can
-   *                         but there's another reason it can't be dropped.
-   *                         Can assume this is a non-null pointer.
-   */
-  virtual bool can_drop(const wmDrag &drag, const char **r_disabled_hint) const = 0;
-  /**
-   * Custom text to display when dragging over a tree item. Should explain what happens when
-   * dropping the data onto this item. Will only be used if #AbstractTreeViewItem::can_drop()
-   * returns true, so the implementing override doesn't have to check that again.
-   * The returned value must be a translated string.
-   */
-  virtual std::string drop_tooltip(const wmDrag &drag) const = 0;
-  /**
-   * Execute the logic to apply a drop of the data dragged with \a drag onto/into the item this
-   * controller is for.
-   */
-  virtual bool on_drop(struct bContext *C, const wmDrag &drag) = 0;
-
-  template<class TreeViewType> inline TreeViewType &tree_view() const;
-};
-
-/** \} */
-
-/* ---------------------------------------------------------------------- */
 /** \name Predefined Tree-View Item Types
  *
  *  Common, Basic Tree-View Item Types.
@@ -431,18 +328,4 @@ inline ItemT &TreeViewItemContainer::add_tree_item(Args &&...args)
       add_tree_item(std::make_unique<ItemT>(std::forward<Args>(args)...)));
 }
 
-template<class TreeViewType> TreeViewType &AbstractTreeViewItemDragController::tree_view() const
-{
-  static_assert(std::is_base_of<AbstractTreeView, TreeViewType>::value,
-                "Type must derive from and implement the AbstractTreeView interface");
-  return static_cast<TreeViewType &>(tree_view_);
-}
-
-template<class TreeViewType> TreeViewType &AbstractTreeViewItemDropController::tree_view() const
-{
-  static_assert(std::is_base_of<AbstractTreeView, TreeViewType>::value,
-                "Type must derive from and implement the AbstractTreeView interface");
-  return static_cast<TreeViewType &>(tree_view_);
-}
-
 }  // namespace blender::ui
diff --git a/source/blender/editors/include/UI_view2d.h b/source/blender/editors/include/UI_view2d.h
index 5c4eb254462..e508c96b4f1 100644
--- a/source/blender/editors/include/UI_view2d.h
+++ b/source/blender/editors/include/UI_view2d.h
@@ -309,6 +309,12 @@ float UI_view2d_view_to_region_y(const struct View2D *v2d, float y);
 bool UI_view2d_view_to_region_clip(
     const struct View2D *v2d, float x, float y, int *r_region_x, int *r_region_y) ATTR_NONNULL();
 
+bool UI_view2d_view_to_region_segment_clip(const View2D *v2d,
+                                           const float xy_a[2],
+                                           const float xy_b[2],
+                                           int r_region_a[2],
+                                           int r_region_b[2]) ATTR_NONNULL();
+
 /**
  * Convert from 2d-view space to screen/region space
  *
diff --git a/source/blender/editors/interface/CMakeLists.txt b/source/blender/editors/interface/CMakeLists.txt
index 1bdec57ac59..07c3bfdafbf 100644
--- a/source/blender/editors/interface/CMakeLists.txt
+++ b/source/blender/editors/interface/CMakeLists.txt
@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
 
 set(INC
+  .
   ../include
   ../../blenfont
   ../../blenkernel
@@ -25,8 +26,13 @@ set(INC
 )
 
 set(SRC
-  abstract_view.cc
-  grid_view.cc
+  eyedroppers/interface_eyedropper.c
+  eyedroppers/eyedropper_color.c
+  eyedroppers/eyedropper_colorband.c
+  eyedroppers/eyedropper_datablock.c
+  eyedroppers/eyedropper_depth.c
+  eyedroppers/eyedropper_driver.c
+  eyedroppers/eyedropper_gpencil_color.c
   interface.cc
   interface_align.c
   interface_anim.c
@@ -36,13 +42,6 @@ set(SRC
   interface_drag.cc
   interface_draw.c
   interface_dropboxes.cc
-  interface_eyedropper.c
-  interface_eyedropper_color.c
-  interface_eyedropper_colorband.c
-  interface_eyedropper_datablock.c
-  interface_eyedropper_depth.c
-  interface_eyedropper_driver.c
-  interface_eyedropper_gpencil_color.c
   interface_handlers.c
   interface_icons.c
   interface_icons_event.c
@@ -68,17 +67,20 @@ set(SRC
   interface_templates.c
   interface_undo.c
   interface_utils.cc
-  interface_view.cc
   interface_widgets.c
   resources.c
-  tree_view.cc
   view2d.cc
   view2d_draw.cc
   view2d_edge_pan.cc
   view2d_gizmo_navigate.cc
   view2d_ops.cc
+  views/abstract_view.cc
+  views/abstract_view_item.cc
+  views/grid_view.cc
+  views/interface_view.cc
+  views/tree_view.cc
 
-  interface_eyedropper_intern.h
+  eyedroppers/eyedropper_intern.h
   interface_intern.h
   interface_regions_intern.h
 )
diff --git a/source/blender/editors/interface/interface_eyedropper_color.c b/source/blender/editors/interface/eyedroppers/eyedropper_color.c
index c015a60de89..a2161008ec4 100644
--- a/source/blender/editors/interface/interface_eyedropper_color.c
+++ b/source/blender/editors/interface/eyedroppers/eyedropper_color.c
@@ -50,7 +50,7 @@
 
 #include "RE_pipeline.h"
 
-#include "interface_eyedropper_intern.h"
+#include "eyedropper_intern.h"
 
 typedef struct Eyedropper {
   struct ColorManagedDisplay *display;
diff --git a/source/blender/editors/interface/interface_eyedropper_colorband.c b/source/blender/editors/interface/eyedroppers/eyedropper_colorband.c
index a69c36fefbd..3f63a8020ed 100644
--- a/source/blender/editors/interface/interface_eyedropper_colorband.c
+++ b/source/blender/editors/interface/eyedroppers/eyedropper_colorband.c
@@ -35,7 +35,7 @@
 
 #include "interface_intern.h"
 
-#include "interface_eyedropper_intern.h"
+#include "eyedropper_intern.h"
 
 typedef struct Colorband_RNAUpdateCb {
   PointerRNA ptr;
diff --git a/source/blender/editors/interface/interface_eyedropper_datablock.c b/source/blender/editors/interface/eyedroppers/eyedropper_datablock.c
index 01b958576b6..1710d0faa4d 100644
--- a/source/blender/editors/interface/interface_eyedropper_datablock.c
+++ b/source/blender/editors/interface/eyedroppers/eyedropper_datablock.c
@@ -38,7 +38,7 @@
 #include "ED_space_api.h"
 #include "ED_view3d.h"
 
-#include "interface_eyedropper_intern.h"
+#include "eyedropper_intern.h"
 #include "interface_intern.h"
 
 /**
diff --git a/source/blender/editors/interface/interface_eyedropper_depth.c b/source/blender/editors/interface/eyedroppers/eyedropper_depth.c
index 3c6f127582a..3fb5a74944b 100644
--- a/source/blender/editors/interface/interface_eyedropper_depth.c
+++ b/source/blender/editors/interface/eyedroppers/eyedropper_depth.c
@@ -38,7 +38,7 @@
 #include "ED_space_api.h"
 #include "ED_view3d.h"
 
-#include "interface_eyedropper_intern.h"
+#include "eyedropper_intern.h"
 #include "interface_intern.h"
 
 /**
diff --git a/source/blender/editors/interface/interface_eyedropper_driver.c b/source/blender/editors/interface/eyedroppers/eyedropper_driver.c
index 0cacb55c60c..14c00c21a5c 100644
--- a/source/blender/editors/interface/interface_eyedropper_driver.c
+++ b/source/blender/editors/interface/eyedroppers/eyedropper_driver.c
@@ -32,7 +32,7 @@
 
 #include "ED_keyframing.h"
 
-#include "interface_eyedropper_intern.h"
+#include "eyedropper_intern.h"
 #include "interface_intern.h"
 
 typedef struct DriverDropper {
diff --git a/source/blender/editors/interface/interface_eyedropper_gpencil_color.c b/source/blender/editors/interface/eyedroppers/eyedropper_gpencil_color.c
index f3c70e6a96a..c3879fe8bbd 100644
--- a/source/blender/editors/interface/interface_eyedropper_gpencil_color.c
+++ b/source/blender/editors/interface/eyedroppers/eyedropper_gpencil_color.c
@@ -46,7 +46,7 @@
 #include "DEG_depsgraph.h"
 #include "DEG_depsgraph_build.h"
 
-#include "interface_eyedropper_intern.h"
+#include "eyedropper_intern.h"
 #include "interface_intern.h"
 
 typedef struct EyedropperGPencil {
diff --git a/source/blender/editors/interface/interface_eyedropper_intern.h b/source/blender/editors/interface/eyedroppers/eyedropper_intern.h
index 76316a85807..946f2145d1d 100644
--- a/source/blender/editors/interface/interface_eyedropper_intern.h
+++ b/source/blender/editors/interface/eyedroppers/eyedropper_intern.h
@@ -3,7 +3,7 @@
 /** \file
  * \ingroup edinterface
  *
- * Share between interface_eyedropper_*.c files.
+ * Share between `interface/eyedropper/` files.
  */
 
 #pragma once
@@ -35,7 +35,7 @@ void datadropper_win_area_find(const struct bContext *C,
  *
  * Special check for image or nodes where we MAY have HDR pixels which don't display.
  *
- * \note Exposed by 'interface_eyedropper_intern.h' for use with color band picking.
+ * \note Exposed by 'eyedropper_intern.h' for use with color band picking.
  */
 void eyedropper_color_sample_fl(bContext *C, const int m_xy[2], float r_col[3]);
 
diff --git a/source/blender/editors/interface/interface_eyedropper.c b/source/blender/editors/interface/eyedroppers/interface_eyedropper.c
index eaec1e249b7..c6fb8f0ab68 100644
--- a/source/blender/editors/interface/interface_eyedropper.c
+++ b/source/blender/editors/interface/eyedroppers/interface_eyedropper.c
@@ -21,7 +21,7 @@
 
 #include "interface_intern.h"
 
-#include "interface_eyedropper_intern.h" /* own include */
+#include "eyedropper_intern.h" /* own include */
 
 /* -------------------------------------------------------------------- */
 /* Keymap
diff --git a/source/blender/editors/interface/interface.cc b/source/blender/editors/interface/interface.cc
index 3f623566807..2f9e69137ed 100644
--- a/source/blender/editors/interface/interface.cc
+++ b/source/blender/editors/interface/interface.cc
@@ -769,20 +769,11 @@ static bool ui_but_equals_old(const uiBut *but, const uiBut *oldbut)
     return false;
   }
 
-  if ((but->type == UI_BTYPE_TREEROW) && (oldbut->type == UI_BTYPE_TREEROW)) {
-    uiButTreeRow *but_treerow = (uiButTreeRow *)but;
-    uiButTreeRow *oldbut_treerow = (uiButTreeRow *)oldbut;
-    if (!but_treerow->tree_item || !oldbut_treerow->tree_item ||
-        !UI_tree_view_item_matches(but_treerow->tree_item, oldbut_treerow->tree_item)) {
-      return false;
-    }
-  }
-
-  if ((but->type == UI_BTYPE_GRID_TILE) && (oldbut->type == UI_BTYPE_GRID_TILE)) {
-    uiButGridTile *but_gridtile = (uiButGridTile *)but;
-    uiButGridTile *oldbut_gridtile = (uiButGridTile *)oldbut;
-    if (!but_gridtile->view_item || !oldbut_gridtile->view_item ||
-        !UI_grid_view_item_matches(but_gridtile->view_item, oldbut_gridtile->view_item)) {
+  if ((but->type == UI_BTYPE_VIEW_ITEM) && (oldbut->type == UI_BTYPE_VIEW_ITEM)) {
+    uiButViewItem *but_item = (uiButViewItem *)but;
+    uiButViewItem *oldbut_item = (uiButViewItem *)oldbut;
+    if (!but_item->view_item || !oldbut_item->view_item ||
+        !UI_view_item_matches(but_item->view_item, oldbut_item->view_item)) {
       return false;
     }
   }
@@ -907,16 +898,10 @@ static void ui_but_update_old_active_from_new(uiBut *oldbut, uiBut *but)
       progress_oldbut->progress = progress_but->progress;
       break;
     }
-    case UI_BTYPE_TREEROW: {
-      uiButTreeRow *treerow_oldbut = (uiButTreeRow *)oldbut;
-      uiButTreeRow *treerow_newbut = (uiButTreeRow *)but;
-      SWAP(uiTreeViewItemHandle *, treerow_newbut->tree_item, treerow_oldbut->tree_item);
-      break;
-    }
-    case UI_BTYPE_GRID_TILE: {
-      uiButGridTile *gridtile_oldbut = (uiButGridTile *)oldbut;
-      uiButGridTile *gridtile_newbut = (uiButGridTile *)but;
-      SWAP(uiGridViewItemHandle *, gridtile_newbut->view_item, gridtile_oldbut->view_item);
+    case UI_BTYPE_VIEW_ITEM: {
+      uiButViewItem *view_item_oldbut = (uiButViewItem *)oldbut;
+      uiButViewItem *view_item_newbut = (uiButViewItem *)but;
+      SWAP(uiViewItemHandle *, view_item_newbut->view_item, view_item_oldbut->view_item);
       break;
     }
     default:
@@ -1013,7 +998,7 @@ static bool ui_but_update_from_old_block(const bContext *C,
 
     /* Stupid special case: The active button may be inside (as in, overlapped on top) a view-item
      * button which we also want to keep highlighted then. */
-    if (ui_but_is_view_item(but)) {
+    if (but->type == UI_BTYPE_VIEW_ITEM) {
       flag_copy |= UI_ACTIVE;
     }
 
@@ -2245,21 +2230,12 @@ int ui_but_is_pushed_ex(uiBut *but, double *value)
           }
         }
         break;
-      case UI_BTYPE_TREEROW: {
-        uiButTreeRow *tree_row_but = (uiButTreeRow *)but;
-
-        is_push = -1;
-        if (tree_row_but->tree_item) {
-          is_push = UI_tree_view_item_is_active(tree_row_but->tree_item);
-        }
-        break;
-      }
-      case UI_BTYPE_GRID_TILE: {
-        uiButGridTile *grid_tile_but = (uiButGridTile *)but;
+      case UI_BTYPE_VIEW_ITEM: {
+        const uiButViewItem *view_item_but = (const uiButViewItem *)but;
 
         is_push = -1;
-        if (grid_tile_but->view_item) {
-          is_push = UI_grid_view_item_is_active(grid_tile_but->view_item);
+        if (view_item_but->view_item) {
+          is_push = UI_view_item_is_active(view_item_but->view_item);
         }
         break;
       }
@@ -4011,17 +3987,13 @@ static void ui_but_alloc_info(const eButType type,
       alloc_size = sizeof(uiButCurveProfile);
       alloc_str = "uiButCurveProfile";
       break;
-    case UI_BTYPE_TREEROW:
-      alloc_size = sizeof(uiButTreeRow);
-      alloc_str = "uiButTreeRow";
-      break;
     case UI_BTYPE_HOTKEY_EVENT:
       alloc_size = sizeof(uiButHotkeyEvent);
       alloc_str = "uiButHotkeyEvent";
       break;
-    case UI_BTYPE_GRID_TILE:
-      alloc_size = sizeof(uiButGridTile);
-      alloc_str = "uiButGridTile";
+    case UI_BTYPE_VIEW_ITEM:
+      alloc_size = sizeof(uiButViewItem);
+      alloc_str = "uiButViewItem";
       break;
     default:
       alloc_size = sizeof(uiBut);
@@ -4214,7 +4186,6 @@ static uiBut *ui_def_but(uiBlock *block,
                 UI_BTYPE_BLOCK,
                 UI_BTYPE_BUT_MENU,
                 UI_BTYPE_SEARCH_MENU,
-                UI_BTYPE_TREEROW,
                 UI_BTYPE_POPOVER)) {
     but->drawflag |= (UI_BUT_TEXT_LEFT | UI_BUT_ICON_LEFT);
   }
@@ -6469,15 +6440,6 @@ uiBut *uiDefSearchButO_ptr(uiBlock *block,
   return but;
 }
 
-void UI_but_treerow_indentation_set(uiBut *but, int indentation)
-{
-  uiButTreeRow *but_row = (uiButTreeRow *)but;
-  BLI_assert(but->type == UI_BTYPE_TREEROW);
-
-  but_row->indentation = indentation;
-  BLI_assert(indentation >= 0);
-}
-
 void UI_but_hint_drawstr_set(uiBut *but, const char *string)
 {
   ui_but_add_shortcut(but, string, false);
@@ -6623,7 +6585,7 @@ void UI_but_string_info_get(bContext *C, uiBut *but, ...)
           MenuType *mt = UI_but_menutype_get(but);
           if (mt) {
             if (type == BUT_GET_RNA_LABEL) {
-              tmp = BLI_strdup(mt->label);
+              tmp = BLI_strdup(CTX_TIP_(mt->translation_context, mt->label));
             }
             else {
               /* Not all menus are from Python. */
@@ -6653,7 +6615,7 @@ void UI_but_string_info_get(bContext *C, uiBut *but, ...)
           PanelType *pt = UI_but_paneltype_get(but);
           if (pt) {
             if (type == BUT_GET_RNA_LABEL) {
-              tmp = BLI_strdup(pt->label);
+              tmp = BLI_strdup(CTX_TIP_(pt->translation_context, pt->label));
             }
             else {
               /* Not all panels are from Python. */
diff --git a/source/blender/editors/interface/interface_context_menu.c b/source/blender/editors/interface/interface_context_menu.c
index e58298cdaee..518fe65ee09 100644
--- a/source/blender/editors/interface/interface_context_menu.c
+++ b/source/blender/editors/interface/interface_context_menu.c
@@ -927,11 +927,11 @@ bool ui_popup_context_menu_for_button(bContext *C, uiBut *but, const wmEvent *ev
 
   {
     const ARegion *region = CTX_wm_menu(C) ? CTX_wm_menu(C) : CTX_wm_region(C);
-    uiButTreeRow *treerow_but = (uiButTreeRow *)ui_tree_row_find_mouse_over(region, event->xy);
-    if (treerow_but) {
-      BLI_assert(treerow_but->but.type == UI_BTYPE_TREEROW);
-      UI_tree_view_item_context_menu_build(
-          C, treerow_but->tree_item, uiLayoutColumn(layout, false));
+    uiButViewItem *view_item_but = (uiButViewItem *)ui_view_item_find_mouse_over(region,
+                                                                                 event->xy);
+    if (view_item_but) {
+      BLI_assert(view_item_but->but.type == UI_BTYPE_VIEW_ITEM);
+      UI_view_item_context_menu_build(C, view_item_but->view_item, uiLayoutColumn(layout, false));
       uiItemS(layout);
     }
   }
diff --git a/source/blender/editors/interface/interface_drag.cc b/source/blender/editors/interface/interface_drag.cc
index 4c68870b2c7..1db3db32411 100644
--- a/source/blender/editors/interface/interface_drag.cc
+++ b/source/blender/editors/interface/interface_drag.cc
@@ -122,7 +122,7 @@ bool ui_but_drag_is_draggable(const uiBut *but)
 
 void ui_but_drag_start(bContext *C, uiBut *but)
 {
-  wmDrag *drag = WM_event_start_drag(C,
+  wmDrag *drag = WM_drag_data_create(C,
                                      but->icon,
                                      but->dragtype,
                                      but->dragpoin,
@@ -136,6 +136,8 @@ void ui_but_drag_start(bContext *C, uiBut *but)
     WM_event_drag_image(drag, but->imb, but->imb_scale);
   }
 
+  WM_event_start_prepared_drag(C, drag);
+
   /* Special feature for assets: We add another drag item that supports multiple assets. It
    * gets the assets from context. */
   if (ELEM(but->dragtype, WM_DRAG_ASSET, WM_DRAG_ID)) {
diff --git a/source/blender/editors/interface/interface_dropboxes.cc b/source/blender/editors/interface/interface_dropboxes.cc
index 9d3c1372b15..b72d8d2c238 100644
--- a/source/blender/editors/interface/interface_dropboxes.cc
+++ b/source/blender/editors/interface/interface_dropboxes.cc
@@ -22,15 +22,14 @@
 #include "UI_interface.h"
 
 /* -------------------------------------------------------------------- */
-/** \name Tree View Drag/Drop Callbacks
+/** \name View Drag/Drop Callbacks
  * \{ */
 
-static bool ui_tree_view_drop_poll(bContext *C, wmDrag *drag, const wmEvent *event)
+static bool ui_view_drop_poll(bContext *C, wmDrag *drag, const wmEvent *event)
 {
   const ARegion *region = CTX_wm_region(C);
-  const uiTreeViewItemHandle *hovered_tree_item = UI_block_tree_view_find_item_at(region,
-                                                                                  event->xy);
-  if (!hovered_tree_item) {
+  const uiViewItemHandle *hovered_item = UI_region_views_find_item_at(region, event->xy);
+  if (!hovered_item) {
     return false;
   }
 
@@ -39,21 +38,21 @@ static bool ui_tree_view_drop_poll(bContext *C, wmDrag *drag, const wmEvent *eve
   }
 
   drag->drop_state.free_disabled_info = false;
-  return UI_tree_view_item_can_drop(hovered_tree_item, drag, &drag->drop_state.disabled_info);
+  return UI_view_item_can_drop(hovered_item, drag, &drag->drop_state.disabled_info);
 }
 
-static char *ui_tree_view_drop_tooltip(bContext *C,
-                                       wmDrag *drag,
-                                       const int xy[2],
-                                       wmDropBox *UNUSED(drop))
+static char *ui_view_drop_tooltip(bContext *C,
+                                  wmDrag *drag,
+                                  const int xy[2],
+                                  wmDropBox *UNUSED(drop))
 {
   const ARegion *region = CTX_wm_region(C);
-  const uiTreeViewItemHandle *hovered_tree_item = UI_block_tree_view_find_item_at(region, xy);
-  if (!hovered_tree_item) {
+  const uiViewItemHandle *hovered_item = UI_region_views_find_item_at(region, xy);
+  if (!hovered_item) {
     return nullptr;
   }
 
-  return UI_tree_view_item_drop_tooltip(hovered_tree_item, drag);
+  return UI_view_item_drop_tooltip(hovered_item, drag);
 }
 
 /** \} */
@@ -140,12 +139,7 @@ void ED_dropboxes_ui()
 {
   ListBase *lb = WM_dropboxmap_find("User Interface", SPACE_EMPTY, 0);
 
-  WM_dropbox_add(lb,
-                 "UI_OT_tree_view_drop",
-                 ui_tree_view_drop_poll,
-                 nullptr,
-                 nullptr,
-                 ui_tree_view_drop_tooltip);
+  WM_dropbox_add(lb, "UI_OT_view_drop", ui_view_drop_poll, nullptr, nullptr, ui_view_drop_tooltip);
   WM_dropbox_add(lb,
                  "UI_OT_drop_name",
                  ui_drop_name_poll,
diff --git a/source/blender/editors/interface/interface_handlers.c b/source/blender/editors/interface/interface_handlers.c
index 7c00c4f1875..0a50522a141 100644
--- a/source/blender/editors/interface/interface_handlers.c
+++ b/source/blender/editors/interface/interface_handlers.c
@@ -1151,7 +1151,10 @@ static void ui_apply_but_ROW(bContext *C, uiBlock *block, uiBut *but, uiHandleBu
   data->applied = true;
 }
 
-static void ui_apply_but_TREEROW(bContext *C, uiBlock *block, uiBut *but, uiHandleButtonData *data)
+static void ui_apply_but_VIEW_ITEM(bContext *C,
+                                   uiBlock *block,
+                                   uiBut *but,
+                                   uiHandleButtonData *data)
 {
   if (data->apply_through_extra_icon) {
     /* Don't apply this, it would cause unintended tree-row toggling when clicking on extra icons.
@@ -2128,10 +2131,10 @@ static bool ui_but_drag_init(bContext *C,
         return false;
       }
     }
-    else if (but->type == UI_BTYPE_TREEROW) {
-      uiButTreeRow *tree_row_but = (uiButTreeRow *)but;
-      if (tree_row_but->tree_item) {
-        UI_tree_view_item_drag_start(C, tree_row_but->tree_item);
+    else if (but->type == UI_BTYPE_VIEW_ITEM) {
+      const uiButViewItem *view_item_but = (uiButViewItem *)but;
+      if (view_item_but->view_item) {
+        UI_view_item_drag_start(C, view_item_but->view_item);
       }
     }
     else {
@@ -2289,11 +2292,8 @@ static void ui_apply_but(
     case UI_BTYPE_ROW:
       ui_apply_but_ROW(C, block, but, data);
       break;
-    case UI_BTYPE_GRID_TILE:
-      ui_apply_but_ROW(C, block, but, data);
-      break;
-    case UI_BTYPE_TREEROW:
-      ui_apply_but_TREEROW(C, block, but, data);
+    case UI_BTYPE_VIEW_ITEM:
+      ui_apply_but_VIEW_ITEM(C, block, but, data);
       break;
     case UI_BTYPE_LISTROW:
       ui_apply_but_LISTROW(C, block, but, data);
@@ -3172,19 +3172,11 @@ static bool ui_textedit_insert_buf(uiBut *but,
   return changed;
 }
 
-static bool ui_textedit_insert_ascii(uiBut *but, uiHandleButtonData *data, char ascii)
+static bool ui_textedit_insert_ascii(uiBut *but, uiHandleButtonData *data, const char ascii)
 {
+  BLI_assert(isascii(ascii));
   const char buf[2] = {ascii, '\0'};
-
-  if (UI_but_is_utf8(but) && (BLI_str_utf8_size(buf) == -1)) {
-    printf(
-        "%s: entering invalid ascii char into an ascii key (%d)\n", __func__, (int)(uchar)ascii);
-
-    return false;
-  }
-
-  /* in some cases we want to allow invalid utf8 chars */
-  return ui_textedit_insert_buf(but, data, buf, 1);
+  return ui_textedit_insert_buf(but, data, buf, sizeof(buf) - 1);
 }
 
 static void ui_textedit_move(uiBut *but,
@@ -3897,30 +3889,27 @@ static void ui_do_but_textedit(
       }
     }
 
-    if ((event->ascii || event->utf8_buf[0]) && (retval == WM_UI_HANDLER_CONTINUE)
+    if ((event->utf8_buf[0]) && (retval == WM_UI_HANDLER_CONTINUE)
 #ifdef WITH_INPUT_IME
         && !is_ime_composing && !WM_event_is_ime_switch(event)
 #endif
     ) {
-      char ascii = event->ascii;
+      char utf8_buf_override[2] = {'\0', '\0'};
       const char *utf8_buf = event->utf8_buf;
 
       /* Exception that's useful for number buttons, some keyboard
        * numpads have a comma instead of a period. */
       if (ELEM(but->type, UI_BTYPE_NUM, UI_BTYPE_NUM_SLIDER)) { /* Could use `data->min`. */
-        if (event->type == EVT_PADPERIOD && ascii == ',') {
-          ascii = '.';
-          utf8_buf = NULL; /* force ascii fallback */
+        if ((event->type == EVT_PADPERIOD) && (utf8_buf[0] == ',')) {
+          utf8_buf_override[0] = '.';
+          utf8_buf = utf8_buf_override;
         }
       }
 
-      if (utf8_buf && utf8_buf[0]) {
+      if (utf8_buf[0]) {
         const int utf8_buf_len = BLI_str_utf8_size(utf8_buf);
         BLI_assert(utf8_buf_len != -1);
-        changed = ui_textedit_insert_buf(but, data, event->utf8_buf, utf8_buf_len);
-      }
-      else {
-        changed = ui_textedit_insert_ascii(but, data, ascii);
+        changed = ui_textedit_insert_buf(but, data, utf8_buf, utf8_buf_len);
       }
 
       retval = WM_UI_HANDLER_BREAK;
@@ -3952,6 +3941,9 @@ static void ui_do_but_textedit(
   else if (event->type == WM_IME_COMPOSITE_END) {
     changed = true;
   }
+#else
+  /* Prevent the function from being unused. */
+  (void)ui_textedit_insert_ascii;
 #endif
 
   if (changed) {
@@ -4772,53 +4764,13 @@ static int ui_do_but_TOG(bContext *C, uiBut *but, uiHandleButtonData *data, cons
   return WM_UI_HANDLER_CONTINUE;
 }
 
-static int ui_do_but_TREEROW(bContext *C,
-                             uiBut *but,
-                             uiHandleButtonData *data,
-                             const wmEvent *event)
-{
-  uiButTreeRow *tree_row_but = (uiButTreeRow *)but;
-  BLI_assert(tree_row_but->but.type == UI_BTYPE_TREEROW);
-
-  if (data->state == BUTTON_STATE_HIGHLIGHT) {
-    if (event->type == LEFTMOUSE) {
-      switch (event->val) {
-        case KM_PRESS:
-          /* Extra icons have priority, don't mess with them. */
-          if (ui_but_extra_operator_icon_mouse_over_get(but, data->region, event)) {
-            return WM_UI_HANDLER_BREAK;
-          }
-          button_activate_state(C, but, BUTTON_STATE_WAIT_DRAG);
-          data->dragstartx = event->xy[0];
-          data->dragstarty = event->xy[1];
-          return WM_UI_HANDLER_CONTINUE;
-
-        case KM_CLICK:
-          button_activate_state(C, but, BUTTON_STATE_EXIT);
-          return WM_UI_HANDLER_BREAK;
-
-        case KM_DBL_CLICK:
-          data->cancel = true;
-          UI_tree_view_item_begin_rename(tree_row_but->tree_item);
-          ED_region_tag_redraw(CTX_wm_region(C));
-          return WM_UI_HANDLER_BREAK;
-      }
-    }
-  }
-  else if (data->state == BUTTON_STATE_WAIT_DRAG) {
-    /* Let "default" button handling take care of the drag logic. */
-    return ui_do_but_EXIT(C, but, data, event);
-  }
-
-  return WM_UI_HANDLER_CONTINUE;
-}
-
-static int ui_do_but_GRIDTILE(bContext *C,
-                              uiBut *but,
-                              uiHandleButtonData *data,
-                              const wmEvent *event)
+static int ui_do_but_VIEW_ITEM(bContext *C,
+                               uiBut *but,
+                               uiHandleButtonData *data,
+                               const wmEvent *event)
 {
-  BLI_assert(but->type == UI_BTYPE_GRID_TILE);
+  uiButViewItem *view_item_but = (uiButViewItem *)but;
+  BLI_assert(view_item_but->but.type == UI_BTYPE_VIEW_ITEM);
 
   if (data->state == BUTTON_STATE_HIGHLIGHT) {
     if (event->type == LEFTMOUSE) {
@@ -4839,8 +4791,7 @@ static int ui_do_but_GRIDTILE(bContext *C,
 
         case KM_DBL_CLICK:
           data->cancel = true;
-          // uiButGridTile *grid_tile_but = (uiButGridTile *)but;
-          // UI_tree_view_item_begin_rename(grid_tile_but->tree_item);
+          UI_view_item_begin_rename(view_item_but->view_item);
           ED_region_tag_redraw(CTX_wm_region(C));
           return WM_UI_HANDLER_BREAK;
       }
@@ -7988,7 +7939,7 @@ static int ui_do_button(bContext *C, uiBlock *block, uiBut *but, const wmEvent *
        * to spawn the context menu should also activate the item. This makes it clear which item
        * will be operated on.
        * Apply the button immediately, so context menu polls get the right active item. */
-      if (ELEM(but->type, UI_BTYPE_TREEROW)) {
+      if (ELEM(but->type, UI_BTYPE_VIEW_ITEM)) {
         ui_apply_but(C, but->block, but, but->active, true);
       }
 
@@ -8053,11 +8004,8 @@ static int ui_do_button(bContext *C, uiBlock *block, uiBut *but, const wmEvent *
     case UI_BTYPE_ROW:
       retval = ui_do_but_TOG(C, but, data, event);
       break;
-    case UI_BTYPE_GRID_TILE:
-      retval = ui_do_but_GRIDTILE(C, but, data, event);
-      break;
-    case UI_BTYPE_TREEROW:
-      retval = ui_do_but_TREEROW(C, but, data, event);
+    case UI_BTYPE_VIEW_ITEM:
+      retval = ui_do_but_VIEW_ITEM(C, but, data, event);
       break;
     case UI_BTYPE_SCROLL:
       retval = ui_do_but_SCROLL(C, block, but, data, event);
@@ -9487,7 +9435,7 @@ static int ui_list_activate_hovered_row(bContext *C,
     }
 
     /* Simulate click on listrow button itself (which may be overlapped by another button). Also
-     * calls the custom activate operator (ui_list->custom_activate_opname). */
+     * calls the custom activate operator (#uiListDyn::custom_activate_optype). */
     UI_but_execute(C, region, listrow);
 
     ((uiList *)ui_list)->dyn_data->custom_activate_optype = custom_activate_optype;
@@ -9558,13 +9506,13 @@ static void ui_list_activate_row_from_index(
   uiBut *new_active_row = ui_list_row_find_from_index(region, index, listbox);
   if (new_active_row) {
     /* Preferred way to update the active item, also calls the custom activate operator
-     * (#uiList.custom_activate_opname). */
+     * (#uiListDyn::custom_activate_optype). */
     UI_but_execute(C, region, new_active_row);
   }
   else {
     /* A bit ugly, set the active index in RNA directly. That's because a button that's
      * scrolled away in the list box isn't created at all.
-     * The custom activate operator (#uiList.custom_activate_opname) is not called in this case
+     * The custom activate operator (#uiListDyn::custom_activate_optype) is not called in this case
      * (which may need the row button context). */
     RNA_property_int_set(&listbox->rnapoin, listbox->rnaprop, index);
     RNA_property_update(C, &listbox->rnapoin, listbox->rnaprop);
@@ -9733,7 +9681,7 @@ static int ui_handle_view_items_hover(const wmEvent *event, const ARegion *regio
     }
 
     LISTBASE_FOREACH (uiBut *, but, &block->buttons) {
-      if (ui_but_is_view_item(but)) {
+      if (but->type == UI_BTYPE_VIEW_ITEM) {
         but->flag &= ~UI_ACTIVE;
         has_view_item = true;
       }
@@ -9760,7 +9708,7 @@ static int ui_handle_view_item_event(bContext *C,
                                      ARegion *region,
                                      uiBut *view_but)
 {
-  BLI_assert(ui_but_is_view_item(view_but));
+  BLI_assert(view_but->type == UI_BTYPE_VIEW_ITEM);
   if (event->type == LEFTMOUSE) {
     /* Will free active button if there already is one. */
     ui_handle_button_activate(C, region, view_but, BUTTON_ACTIVATE_OVER);
diff --git a/source/blender/editors/interface/interface_intern.h b/source/blender/editors/interface/interface_intern.h
index 5e0382f73a9..03b9d03a6e3 100644
--- a/source/blender/editors/interface/interface_intern.h
+++ b/source/blender/editors/interface/interface_intern.h
@@ -343,20 +343,12 @@ typedef struct uiButProgressbar {
   float progress;
 } uiButProgressbar;
 
-/** Derived struct for #UI_BTYPE_TREEROW. */
-typedef struct uiButTreeRow {
+typedef struct uiButViewItem {
   uiBut but;
 
-  uiTreeViewItemHandle *tree_item;
-  int indentation;
-} uiButTreeRow;
-
-/** Derived struct for #UI_BTYPE_GRID_TILE. */
-typedef struct uiButGridTile {
-  uiBut but;
-
-  uiGridViewItemHandle *view_item;
-} uiButGridTile;
+  /* C-Handle to the view item this button was created for. */
+  uiViewItemHandle *view_item;
+} uiButViewItem;
 
 /** Derived struct for #UI_BTYPE_HSVCUBE. */
 typedef struct uiButHSVCube {
@@ -1372,7 +1364,6 @@ void ui_but_anim_decorate_update_from_flag(uiButDecorator *but);
 bool ui_but_is_editable(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
 bool ui_but_is_editable_as_text(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
 bool ui_but_is_toggle(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
-bool ui_but_is_view_item(const uiBut *but) ATTR_WARN_UNUSED_RESULT;
 /**
  * Can we mouse over the button or is it hidden/disabled/layout.
  * \note ctrl is kind of a hack currently,
@@ -1406,9 +1397,7 @@ uiBut *ui_list_row_find_from_index(const struct ARegion *region,
                                    uiBut *listbox) ATTR_WARN_UNUSED_RESULT;
 uiBut *ui_view_item_find_mouse_over(const struct ARegion *region, const int xy[2])
     ATTR_NONNULL(1, 2);
-uiBut *ui_tree_row_find_mouse_over(const struct ARegion *region, const int xy[2])
-    ATTR_NONNULL(1, 2);
-uiBut *ui_tree_row_find_active(const struct ARegion *region);
+uiBut *ui_view_item_find_active(const struct ARegion *region);
 
 typedef bool (*uiButFindPollFn)(const uiBut *but, const void *customdata);
 /**
@@ -1546,8 +1535,8 @@ void ui_block_free_views(struct uiBlock *block);
 uiViewHandle *ui_block_view_find_matching_in_old_block(const uiBlock *new_block,
                                                        const uiViewHandle *new_view);
 
-uiButTreeRow *ui_block_view_find_treerow_in_old_block(const uiBlock *new_block,
-                                                      const uiTreeViewItemHandle *new_item_handle);
+uiButViewItem *ui_block_view_find_matching_view_item_but_in_old_block(
+    const uiBlock *new_block, const uiViewItemHandle *new_item_handle);
 
 /* interface_templates.c */
 
diff --git a/source/blender/editors/interface/interface_ops.c b/source/blender/editors/interface/interface_ops.c
index aafb56119ae..ddd805f6010 100644
--- a/source/blender/editors/interface/interface_ops.c
+++ b/source/blender/editors/interface/interface_ops.c
@@ -2054,40 +2054,39 @@ static void UI_OT_list_start_filter(wmOperatorType *ot)
 /** \name UI Tree-View Drop Operator
  * \{ */
 
-static bool ui_tree_view_drop_poll(bContext *C)
+static bool ui_view_drop_poll(bContext *C)
 {
   const wmWindow *win = CTX_wm_window(C);
   const ARegion *region = CTX_wm_region(C);
-  const uiTreeViewItemHandle *hovered_tree_item = UI_block_tree_view_find_item_at(
-      region, win->eventstate->xy);
+  const uiViewItemHandle *hovered_item = UI_region_views_find_item_at(region, win->eventstate->xy);
 
-  return hovered_tree_item != NULL;
+  return hovered_item != NULL;
 }
 
-static int ui_tree_view_drop_invoke(bContext *C, wmOperator *UNUSED(op), const wmEvent *event)
+static int ui_view_drop_invoke(bContext *C, wmOperator *UNUSED(op), const wmEvent *event)
 {
   if (event->custom != EVT_DATA_DRAGDROP) {
     return OPERATOR_CANCELLED | OPERATOR_PASS_THROUGH;
   }
 
   const ARegion *region = CTX_wm_region(C);
-  uiTreeViewItemHandle *hovered_tree_item = UI_block_tree_view_find_item_at(region, event->xy);
+  uiViewItemHandle *hovered_item = UI_region_views_find_item_at(region, event->xy);
 
-  if (!UI_tree_view_item_drop_handle(C, hovered_tree_item, event->customdata)) {
+  if (!UI_view_item_drop_handle(C, hovered_item, event->customdata)) {
     return OPERATOR_CANCELLED | OPERATOR_PASS_THROUGH;
   }
 
   return OPERATOR_FINISHED;
 }
 
-static void UI_OT_tree_view_drop(wmOperatorType *ot)
+static void UI_OT_view_drop(wmOperatorType *ot)
 {
-  ot->name = "Tree View drop";
-  ot->idname = "UI_OT_tree_view_drop";
-  ot->description = "Drag and drop items onto a tree item";
+  ot->name = "View drop";
+  ot->idname = "UI_OT_view_drop";
+  ot->description = "Drag and drop items onto a data-set item";
 
-  ot->invoke = ui_tree_view_drop_invoke;
-  ot->poll = ui_tree_view_drop_poll;
+  ot->invoke = ui_view_drop_invoke;
+  ot->poll = ui_view_drop_poll;
 
   ot->flag = OPTYPE_INTERNAL;
 }
@@ -2095,43 +2094,42 @@ static void UI_OT_tree_view_drop(wmOperatorType *ot)
 /** \} */
 
 /* -------------------------------------------------------------------- */
-/** \name UI Tree-View Item Rename Operator
+/** \name UI View Item Rename Operator
  *
- * General purpose renaming operator for tree-views. Thanks to this, to add a rename button to
- * context menus for example, tree-view API users don't have to implement their own renaming
- * operators with the same logic as they already have for their #ui::AbstractTreeViewItem::rename()
- * override.
+ * General purpose renaming operator for views. Thanks to this, to add a rename button to context
+ * menus for example, view API users don't have to implement their own renaming operators with the
+ * same logic as they already have for their #ui::AbstractViewItem::rename() override.
  *
  * \{ */
 
-static bool ui_tree_view_item_rename_poll(bContext *C)
+static bool ui_view_item_rename_poll(bContext *C)
 {
   const ARegion *region = CTX_wm_region(C);
-  const uiTreeViewItemHandle *active_item = UI_block_tree_view_find_active_item(region);
-  return active_item != NULL && UI_tree_view_item_can_rename(active_item);
+  const uiViewItemHandle *active_item = UI_region_views_find_active_item(region);
+  return active_item != NULL && UI_view_item_can_rename(active_item);
 }
 
-static int ui_tree_view_item_rename_exec(bContext *C, wmOperator *UNUSED(op))
+static int ui_view_item_rename_exec(bContext *C, wmOperator *UNUSED(op))
 {
   ARegion *region = CTX_wm_region(C);
-  uiTreeViewItemHandle *active_item = UI_block_tree_view_find_active_item(region);
+  uiViewItemHandle *active_item = UI_region_views_find_active_item(region);
 
-  UI_tree_view_item_begin_rename(active_item);
+  UI_view_item_begin_rename(active_item);
   ED_region_tag_redraw(region);
 
   return OPERATOR_FINISHED;
 }
 
-static void UI_OT_tree_view_item_rename(wmOperatorType *ot)
+static void UI_OT_view_item_rename(wmOperatorType *ot)
 {
-  ot->name = "Rename Tree-View Item";
-  ot->idname = "UI_OT_tree_view_item_rename";
-  ot->description = "Rename the active item in the tree";
+  ot->name = "Rename View Item";
+  ot->idname = "UI_OT_view_item_rename";
+  ot->description = "Rename the active item in the data-set view";
 
-  ot->exec = ui_tree_view_item_rename_exec;
-  ot->poll = ui_tree_view_item_rename_poll;
+  ot->exec = ui_view_item_rename_exec;
+  ot->poll = ui_view_item_rename_poll;
   /* Could get a custom tooltip via the `get_description()` callback and another overridable
-   * function of the tree-view. */
+   * function of the view. */
 
   ot->flag = OPTYPE_INTERNAL;
 }
@@ -2235,8 +2233,8 @@ void ED_operatortypes_ui(void)
 
   WM_operatortype_append(UI_OT_list_start_filter);
 
-  WM_operatortype_append(UI_OT_tree_view_drop);
-  WM_operatortype_append(UI_OT_tree_view_item_rename);
+  WM_operatortype_append(UI_OT_view_drop);
+  WM_operatortype_append(UI_OT_view_item_rename);
 
   /* external */
   WM_operatortype_append(UI_OT_eyedropper_color);
diff --git a/source/blender/editors/interface/interface_query.cc b/source/blender/editors/interface/interface_query.cc
index 71cf60985df..f084f3e06cb 100644
--- a/source/blender/editors/interface/interface_query.cc
+++ b/source/blender/editors/interface/interface_query.cc
@@ -54,13 +54,7 @@ bool ui_but_is_toggle(const uiBut *but)
               UI_BTYPE_TOGGLE_N,
               UI_BTYPE_CHECKBOX,
               UI_BTYPE_CHECKBOX_N,
-              UI_BTYPE_ROW,
-              UI_BTYPE_TREEROW);
-}
-
-bool ui_but_is_view_item(const uiBut *but)
-{
-  return ELEM(but->type, UI_BTYPE_TREEROW, UI_BTYPE_GRID_TILE);
+              UI_BTYPE_ROW);
 }
 
 bool ui_but_is_interactive_ex(const uiBut *but, const bool labeledit, const bool for_tooltip)
@@ -462,14 +456,9 @@ uiBut *ui_list_row_find_from_index(const ARegion *region, const int index, uiBut
   return ui_but_find(region, ui_but_is_listrow_at_index, &data);
 }
 
-static bool ui_but_is_treerow(const uiBut *but, const void *UNUSED(customdata))
-{
-  return but->type == UI_BTYPE_TREEROW;
-}
-
 static bool ui_but_is_view_item_fn(const uiBut *but, const void *UNUSED(customdata))
 {
-  return ui_but_is_view_item(but);
+  return but->type == UI_BTYPE_VIEW_ITEM;
 }
 
 uiBut *ui_view_item_find_mouse_over(const ARegion *region, const int xy[2])
@@ -477,24 +466,19 @@ uiBut *ui_view_item_find_mouse_over(const ARegion *region, const int xy[2])
   return ui_but_find_mouse_over_ex(region, xy, false, false, ui_but_is_view_item_fn, nullptr);
 }
 
-uiBut *ui_tree_row_find_mouse_over(const ARegion *region, const int xy[2])
-{
-  return ui_but_find_mouse_over_ex(region, xy, false, false, ui_but_is_treerow, nullptr);
-}
-
-static bool ui_but_is_active_treerow(const uiBut *but, const void *customdata)
+static bool ui_but_is_active_view_item(const uiBut *but, const void *UNUSED(customdata))
 {
-  if (!ui_but_is_treerow(but, customdata)) {
+  if (but->type != UI_BTYPE_VIEW_ITEM) {
     return false;
   }
 
-  const uiButTreeRow *treerow_but = (const uiButTreeRow *)but;
-  return UI_tree_view_item_is_active(treerow_but->tree_item);
+  const uiButViewItem *view_item_but = (const uiButViewItem *)but;
+  return UI_view_item_is_active(view_item_but->view_item);
 }
 
-uiBut *ui_tree_row_find_active(const ARegion *region)
+uiBut *ui_view_item_find_active(const ARegion *region)
 {
-  return ui_but_find(region, ui_but_is_active_treerow, nullptr);
+  return ui_but_find(region, ui_but_is_active_view_item, nullptr);
 }
 
 /** \} */
diff --git a/source/blender/editors/interface/interface_region_menu_pie.cc b/source/blender/editors/interface/interface_region_menu_pie.cc
index b11564f09c5..09902dd6c35 100644
--- a/source/blender/editors/interface/interface_region_menu_pie.cc
+++ b/source/blender/editors/interface/interface_region_menu_pie.cc
@@ -371,7 +371,7 @@ void ui_pie_menu_level_create(uiBlock *block,
   EnumPropertyItem *remaining = static_cast<EnumPropertyItem *>(
       MEM_mallocN(array_size + sizeof(EnumPropertyItem), "pie_level_item_array"));
   memcpy(remaining, items + totitem_parent, array_size);
-  /* A nullptr terminating sentinel element is required. */
+  /* A null terminating sentinel element is required. */
   memset(&remaining[totitem_remain], 0, sizeof(EnumPropertyItem));
 
   /* yuk, static... issue is we can't reliably free this without doing dangerous changes */
diff --git a/source/blender/editors/interface/interface_widgets.c b/source/blender/editors/interface/interface_widgets.c
index e2df2d77817..855e72788d2 100644
--- a/source/blender/editors/interface/interface_widgets.c
+++ b/source/blender/editors/interface/interface_widgets.c
@@ -104,8 +104,7 @@ typedef enum {
   UI_WTYPE_LISTITEM,
   UI_WTYPE_PROGRESSBAR,
   UI_WTYPE_NODESOCKET,
-  UI_WTYPE_TREEROW,
-  UI_WTYPE_GRID_TILE,
+  UI_WTYPE_VIEW_ITEM,
 } uiWidgetTypeEnum;
 
 /**
@@ -3672,12 +3671,11 @@ static void widget_progressbar(uiBut *but,
   widgetbase_draw(&wtb_bar, wcol);
 }
 
-static void widget_treerow_exec(uiWidgetColors *wcol,
-                                rcti *rect,
-                                const uiWidgetStateInfo *state,
-                                int UNUSED(roundboxalign),
-                                int indentation,
-                                const float zoom)
+static void widget_view_item(uiWidgetColors *wcol,
+                             rcti *rect,
+                             const uiWidgetStateInfo *state,
+                             int UNUSED(roundboxalign),
+                             const float zoom)
 {
   uiWidgetBase wtb;
   widget_init(&wtb);
@@ -3690,31 +3688,6 @@ static void widget_treerow_exec(uiWidgetColors *wcol,
   if ((state->but_flag & UI_ACTIVE) || (state->but_flag & UI_SELECT)) {
     widgetbase_draw(&wtb, wcol);
   }
-
-  BLI_rcti_resize(rect, BLI_rcti_size_x(rect) - UI_UNIT_X * indentation, BLI_rcti_size_y(rect));
-  BLI_rcti_translate(rect, 0.5f * UI_UNIT_X * indentation, 0);
-}
-
-static void widget_treerow(uiBut *but,
-                           uiWidgetColors *wcol,
-                           rcti *rect,
-                           const uiWidgetStateInfo *state,
-                           int roundboxalign,
-                           const float zoom)
-{
-  uiButTreeRow *tree_row = (uiButTreeRow *)but;
-  BLI_assert(but->type == UI_BTYPE_TREEROW);
-  widget_treerow_exec(wcol, rect, state, roundboxalign, tree_row->indentation, zoom);
-}
-
-static void widget_gridtile(uiWidgetColors *wcol,
-                            rcti *rect,
-                            const uiWidgetStateInfo *state,
-                            int roundboxalign,
-                            const float zoom)
-{
-  /* TODO Reuse tree-row drawing. */
-  widget_treerow_exec(wcol, rect, state, roundboxalign, 0, zoom);
 }
 
 static void widget_nodesocket(uiBut *but,
@@ -4608,14 +4581,9 @@ static uiWidgetType *widget_type(uiWidgetTypeEnum type)
       wt.custom = widget_progressbar;
       break;
 
-    case UI_WTYPE_TREEROW:
-      wt.wcol_theme = &btheme->tui.wcol_view_item;
-      wt.custom = widget_treerow;
-      break;
-
-    case UI_WTYPE_GRID_TILE:
+    case UI_WTYPE_VIEW_ITEM:
       wt.wcol_theme = &btheme->tui.wcol_view_item;
-      wt.draw = widget_gridtile;
+      wt.draw = widget_view_item;
       break;
 
     case UI_WTYPE_NODESOCKET:
@@ -4949,13 +4917,8 @@ void ui_draw_but(const bContext *C, struct ARegion *region, uiStyle *style, uiBu
         fstyle = &style->widgetlabel;
         break;
 
-      case UI_BTYPE_TREEROW:
-        wt = widget_type(UI_WTYPE_TREEROW);
-        fstyle = &style->widgetlabel;
-        break;
-
-      case UI_BTYPE_GRID_TILE:
-        wt = widget_type(UI_WTYPE_GRID_TILE);
+      case UI_BTYPE_VIEW_ITEM:
+        wt = widget_type(UI_WTYPE_VIEW_ITEM);
         fstyle = &style->widgetlabel;
         break;
 
diff --git a/source/blender/editors/interface/view2d.cc b/source/blender/editors/interface/view2d.cc
index ee4bfd351ae..1bf7e25b154 100644
--- a/source/blender/editors/interface/view2d.cc
+++ b/source/blender/editors/interface/view2d.cc
@@ -1695,6 +1695,41 @@ void UI_view2d_view_to_region_fl(
   *r_region_y = v2d->mask.ymin + (y * BLI_rcti_size_y(&v2d->mask));
 }
 
+bool UI_view2d_view_to_region_segment_clip(const View2D *v2d,
+                                           const float xy_a[2],
+                                           const float xy_b[2],
+                                           int r_region_a[2],
+                                           int r_region_b[2])
+{
+  rctf rect_unit;
+  rect_unit.xmin = rect_unit.ymin = 0.0f;
+  rect_unit.xmax = rect_unit.ymax = 1.0f;
+
+  /* Express given coordinates as proportional values. */
+  const float s_a[2] = {
+      (xy_a[0] - v2d->cur.xmin) / BLI_rctf_size_x(&v2d->cur),
+      (xy_a[1] - v2d->cur.ymin) / BLI_rctf_size_y(&v2d->cur),
+  };
+  const float s_b[2] = {
+      (xy_b[0] - v2d->cur.xmin) / BLI_rctf_size_x(&v2d->cur),
+      (xy_b[1] - v2d->cur.ymin) / BLI_rctf_size_y(&v2d->cur),
+  };
+
+  /* Set initial value in case coordinates lie outside bounds. */
+  r_region_a[0] = r_region_b[0] = r_region_a[1] = r_region_b[1] = V2D_IS_CLIPPED;
+
+  if (BLI_rctf_isect_segment(&rect_unit, s_a, s_b)) {
+    r_region_a[0] = (int)(v2d->mask.xmin + (s_a[0] * BLI_rcti_size_x(&v2d->mask)));
+    r_region_a[1] = (int)(v2d->mask.ymin + (s_a[1] * BLI_rcti_size_y(&v2d->mask)));
+    r_region_b[0] = (int)(v2d->mask.xmin + (s_b[0] * BLI_rcti_size_x(&v2d->mask)));
+    r_region_b[1] = (int)(v2d->mask.ymin + (s_b[1] * BLI_rcti_size_y(&v2d->mask)));
+
+    return true;
+  }
+
+  return false;
+}
+
 void UI_view2d_view_to_region_rcti(const 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/interface/abstract_view.cc b/source/blender/editors/interface/views/abstract_view.cc
index dea9600fde4..077c76a08f1 100644
--- a/source/blender/editors/interface/abstract_view.cc
+++ b/source/blender/editors/interface/views/abstract_view.cc
@@ -10,6 +10,13 @@
 
 namespace blender::ui {
 
+void AbstractView::register_item(AbstractViewItem &item)
+{
+  /* Actually modifies the item, not the view.  But for the public API it "feels" a bit nicer to
+   * have the view base class register the items, rather than setting the view on the item. */
+  item.view_ = this;
+}
+
 /* ---------------------------------------------------------------------- */
 /** \name View Reconstruction
  * \{ */
diff --git a/source/blender/editors/interface/views/abstract_view_item.cc b/source/blender/editors/interface/views/abstract_view_item.cc
new file mode 100644
index 00000000000..f73183d07e9
--- /dev/null
+++ b/source/blender/editors/interface/views/abstract_view_item.cc
@@ -0,0 +1,373 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup edinterface
+ */
+
+#include "BKE_context.h"
+
+#include "BLI_listbase.h"
+#include "BLI_string.h"
+
+#include "WM_api.h"
+
+#include "UI_interface.h"
+#include "interface_intern.h"
+
+#include "UI_abstract_view.hh"
+
+namespace blender::ui {
+
+/* ---------------------------------------------------------------------- */
+/** \name View Reconstruction
+ * \{ */
+
+void AbstractViewItem::update_from_old(const AbstractViewItem &old)
+{
+  is_active_ = old.is_active_;
+  is_renaming_ = old.is_renaming_;
+}
+
+/** \} */
+
+/* ---------------------------------------------------------------------- */
+/** \name Renaming
+ * \{ */
+
+bool AbstractViewItem::supports_renaming() const
+{
+  /* No renaming by default. */
+  return false;
+}
+bool AbstractViewItem::rename(StringRefNull /*new_name*/)
+{
+  /* No renaming by default. */
+  return false;
+}
+
+StringRef AbstractViewItem::get_rename_string() const
+{
+  /* No rename string by default. */
+  return {};
+}
+
+bool AbstractViewItem::is_renaming() const
+{
+  return is_renaming_;
+}
+
+void AbstractViewItem::begin_renaming()
+{
+  AbstractView &view = get_view();
+  if (view.is_renaming() || !supports_renaming()) {
+    return;
+  }
+
+  if (view.begin_renaming()) {
+    is_renaming_ = true;
+  }
+
+  StringRef initial_str = get_rename_string();
+  std::copy(std::begin(initial_str), std::end(initial_str), std::begin(view.get_rename_buffer()));
+}
+
+void AbstractViewItem::rename_apply()
+{
+  const AbstractView &view = get_view();
+  rename(view.get_rename_buffer().data());
+  end_renaming();
+}
+
+void AbstractViewItem::end_renaming()
+{
+  if (!is_renaming()) {
+    return;
+  }
+
+  is_renaming_ = false;
+
+  AbstractView &view = get_view();
+  view.end_renaming();
+}
+
+static AbstractViewItem *find_item_from_rename_button(const uiBut &rename_but)
+{
+  /* A minimal sanity check, can't do much more here. */
+  BLI_assert(rename_but.type == UI_BTYPE_TEXT && rename_but.poin);
+
+  LISTBASE_FOREACH (uiBut *, but, &rename_but.block->buttons) {
+    if (but->type != UI_BTYPE_VIEW_ITEM) {
+      continue;
+    }
+
+    uiButViewItem *view_item_but = (uiButViewItem *)but;
+    AbstractViewItem *item = reinterpret_cast<AbstractViewItem *>(view_item_but->view_item);
+    const AbstractView &view = item->get_view();
+
+    if (item->is_renaming() && (view.get_rename_buffer().data() == rename_but.poin)) {
+      return item;
+    }
+  }
+
+  return nullptr;
+}
+
+static void rename_button_fn(bContext *UNUSED(C), void *arg, char *UNUSED(origstr))
+{
+  const uiBut *rename_but = static_cast<uiBut *>(arg);
+  AbstractViewItem *item = find_item_from_rename_button(*rename_but);
+  BLI_assert(item);
+  item->rename_apply();
+}
+
+void AbstractViewItem::add_rename_button(uiBlock &block)
+{
+  AbstractView &view = get_view();
+  uiBut *rename_but = uiDefBut(&block,
+                               UI_BTYPE_TEXT,
+                               1,
+                               "",
+                               0,
+                               0,
+                               UI_UNIT_X * 10,
+                               UI_UNIT_Y,
+                               view.get_rename_buffer().data(),
+                               1.0f,
+                               view.get_rename_buffer().size(),
+                               0,
+                               0,
+                               "");
+
+  /* Gotta be careful with what's passed to the `arg1` here. Any view data will be freed once the
+   * callback is executed. */
+  UI_but_func_rename_set(rename_but, rename_button_fn, rename_but);
+  UI_but_flag_disable(rename_but, UI_BUT_UNDO);
+
+  const bContext *evil_C = reinterpret_cast<bContext *>(block.evil_C);
+  ARegion *region = CTX_wm_region(evil_C);
+  /* Returns false if the button was removed. */
+  if (UI_but_active_only(evil_C, region, &block, rename_but) == false) {
+    end_renaming();
+  }
+}
+
+/** \} */
+
+/* ---------------------------------------------------------------------- */
+/** \name Context Menu
+ * \{ */
+
+void AbstractViewItem::build_context_menu(bContext & /*C*/, uiLayout & /*column*/) const
+{
+  /* No context menu by default. */
+}
+
+/** \} */
+
+/* ---------------------------------------------------------------------- */
+/** \name Drag 'n Drop
+ * \{ */
+
+std::unique_ptr<AbstractViewItemDragController> AbstractViewItem::create_drag_controller() const
+{
+  /* There's no drag controller (and hence no drag support) by default. */
+  return nullptr;
+}
+
+std::unique_ptr<AbstractViewItemDropController> AbstractViewItem::create_drop_controller() const
+{
+  /* There's no drop controller (and hence no drop support) by default. */
+  return nullptr;
+}
+
+AbstractViewItemDragController::AbstractViewItemDragController(AbstractView &view) : view_(view)
+{
+}
+
+void AbstractViewItemDragController::on_drag_start()
+{
+  /* Do nothing by default. */
+}
+
+AbstractViewItemDropController::AbstractViewItemDropController(AbstractView &view) : view_(view)
+{
+}
+
+/** \} */
+
+/* ---------------------------------------------------------------------- */
+/** \name General Getters & Setters
+ * \{ */
+
+AbstractView &AbstractViewItem::get_view() const
+{
+  if (UNLIKELY(!view_)) {
+    throw std::runtime_error(
+        "Invalid state, item must be registered through AbstractView::register_item()");
+  }
+  return *view_;
+}
+
+bool AbstractViewItem::is_active() const
+{
+  BLI_assert_msg(get_view().is_reconstructed(),
+                 "State can't be queried until reconstruction is completed");
+  return is_active_;
+}
+
+/** \} */
+
+}  // namespace blender::ui
+
+/* ---------------------------------------------------------------------- */
+/** \name C-API
+ * \{ */
+
+namespace blender::ui {
+
+/**
+ * Helper class to provide a higher level public (C-)API. Has access to private/protected view item
+ * members and ensures some invariants that way.
+ */
+class ViewItemAPIWrapper {
+ public:
+  static bool matches(const AbstractViewItem &a, const AbstractViewItem &b)
+  {
+    if (typeid(a) != typeid(b)) {
+      return false;
+    }
+    /* TODO should match the view as well. */
+    return a.matches(b);
+  }
+
+  static bool can_rename(const AbstractViewItem &item)
+  {
+    const AbstractView &view = item.get_view();
+    return !view.is_renaming() && item.supports_renaming();
+  }
+
+  static bool drag_start(bContext &C, const AbstractViewItem &item)
+  {
+    const std::unique_ptr<AbstractViewItemDragController> drag_controller =
+        item.create_drag_controller();
+    if (!drag_controller) {
+      return false;
+    }
+
+    WM_event_start_drag(&C,
+                        ICON_NONE,
+                        drag_controller->get_drag_type(),
+                        drag_controller->create_drag_data(),
+                        0,
+                        WM_DRAG_FREE_DATA);
+    drag_controller->on_drag_start();
+
+    return true;
+  }
+
+  static bool can_drop(const AbstractViewItem &item,
+                       const wmDrag &drag,
+                       const char **r_disabled_hint)
+  {
+    const std::unique_ptr<AbstractViewItemDropController> drop_controller =
+        item.create_drop_controller();
+    if (!drop_controller) {
+      return false;
+    }
+
+    return drop_controller->can_drop(drag, r_disabled_hint);
+  }
+
+  static std::string drop_tooltip(const AbstractViewItem &item, const wmDrag &drag)
+  {
+    const std::unique_ptr<AbstractViewItemDropController> drop_controller =
+        item.create_drop_controller();
+    if (!drop_controller) {
+      return {};
+    }
+
+    return drop_controller->drop_tooltip(drag);
+  }
+
+  static bool drop_handle(bContext &C, const AbstractViewItem &item, const ListBase &drags)
+  {
+    std::unique_ptr<AbstractViewItemDropController> drop_controller =
+        item.create_drop_controller();
+
+    const char *disabled_hint_dummy = nullptr;
+    LISTBASE_FOREACH (const wmDrag *, drag, &drags) {
+      if (drop_controller->can_drop(*drag, &disabled_hint_dummy)) {
+        return drop_controller->on_drop(&C, *drag);
+      }
+    }
+
+    return false;
+  }
+};
+
+}  // namespace blender::ui
+
+using namespace blender::ui;
+
+bool UI_view_item_is_active(const uiViewItemHandle *item_handle)
+{
+  const AbstractViewItem &item = reinterpret_cast<const AbstractViewItem &>(*item_handle);
+  return item.is_active();
+}
+
+bool UI_view_item_matches(const uiViewItemHandle *a_handle, const uiViewItemHandle *b_handle)
+{
+  const AbstractViewItem &a = reinterpret_cast<const AbstractViewItem &>(*a_handle);
+  const AbstractViewItem &b = reinterpret_cast<const AbstractViewItem &>(*b_handle);
+  return ViewItemAPIWrapper::matches(a, b);
+}
+
+bool UI_view_item_can_rename(const uiViewItemHandle *item_handle)
+{
+  const AbstractViewItem &item = reinterpret_cast<const AbstractViewItem &>(*item_handle);
+  return ViewItemAPIWrapper::can_rename(item);
+}
+
+void UI_view_item_begin_rename(uiViewItemHandle *item_handle)
+{
+  AbstractViewItem &item = reinterpret_cast<AbstractViewItem &>(*item_handle);
+  item.begin_renaming();
+}
+
+void UI_view_item_context_menu_build(bContext *C,
+                                     const uiViewItemHandle *item_handle,
+                                     uiLayout *column)
+{
+  const AbstractViewItem &item = reinterpret_cast<const AbstractViewItem &>(*item_handle);
+  item.build_context_menu(*C, *column);
+}
+
+bool UI_view_item_drag_start(bContext *C, const uiViewItemHandle *item_)
+{
+  const AbstractViewItem &item = reinterpret_cast<const AbstractViewItem &>(*item_);
+  return ViewItemAPIWrapper::drag_start(*C, item);
+}
+
+bool UI_view_item_can_drop(const uiViewItemHandle *item_,
+                           const wmDrag *drag,
+                           const char **r_disabled_hint)
+{
+  const AbstractViewItem &item = reinterpret_cast<const AbstractViewItem &>(*item_);
+  return ViewItemAPIWrapper::can_drop(item, *drag, r_disabled_hint);
+}
+
+char *UI_view_item_drop_tooltip(const uiViewItemHandle *item_, const wmDrag *drag)
+{
+  const AbstractViewItem &item = reinterpret_cast<const AbstractViewItem &>(*item_);
+
+  const std::string tooltip = ViewItemAPIWrapper::drop_tooltip(item, *drag);
+  return tooltip.empty() ? nullptr : BLI_strdup(tooltip.c_str());
+}
+
+bool UI_view_item_drop_handle(bContext *C, const uiViewItemHandle *item_, const ListBase *drags)
+{
+  const AbstractViewItem &item = reinterpret_cast<const AbstractViewItem &>(*item_);
+  return ViewItemAPIWrapper::drop_handle(*C, item, *drags);
+}
+
+/** \} */
diff --git a/source/blender/editors/interface/grid_view.cc b/source/blender/editors/interface/views/grid_view.cc
index 19a2326fba1..37fbb33f83b 100644
--- a/source/blender/editors/interface/grid_view.cc
+++ b/source/blender/editors/interface/views/grid_view.cc
@@ -95,18 +95,19 @@ AbstractGridViewItem::AbstractGridViewItem(StringRef identifier) : identifier_(i
 {
 }
 
-bool AbstractGridViewItem::matches(const AbstractGridViewItem &other) const
+bool AbstractGridViewItem::matches(const AbstractViewItem &other) const
 {
-  return identifier_ == other.identifier_;
+  const AbstractGridViewItem &other_grid_item = dynamic_cast<const AbstractGridViewItem &>(other);
+  return identifier_ == other_grid_item.identifier_;
 }
 
 void AbstractGridViewItem::grid_tile_click_fn(struct bContext * /*C*/,
                                               void *but_arg1,
                                               void * /*arg2*/)
 {
-  uiButGridTile *grid_tile_but = (uiButGridTile *)but_arg1;
+  uiButViewItem *view_item_but = (uiButViewItem *)but_arg1;
   AbstractGridViewItem &grid_item = reinterpret_cast<AbstractGridViewItem &>(
-      *grid_tile_but->view_item);
+      *view_item_but->view_item);
 
   grid_item.activate();
 }
@@ -114,8 +115,8 @@ void AbstractGridViewItem::grid_tile_click_fn(struct bContext * /*C*/,
 void AbstractGridViewItem::add_grid_tile_button(uiBlock &block)
 {
   const GridViewStyle &style = get_view().get_style();
-  grid_tile_but_ = (uiButGridTile *)uiDefBut(&block,
-                                             UI_BTYPE_GRID_TILE,
+  view_item_but_ = (uiButViewItem *)uiDefBut(&block,
+                                             UI_BTYPE_VIEW_ITEM,
                                              0,
                                              "",
                                              0,
@@ -129,15 +130,8 @@ void AbstractGridViewItem::add_grid_tile_button(uiBlock &block)
                                              0,
                                              "");
 
-  grid_tile_but_->view_item = reinterpret_cast<uiGridViewItemHandle *>(this);
-  UI_but_func_set(&grid_tile_but_->but, grid_tile_click_fn, grid_tile_but_, nullptr);
-}
-
-bool AbstractGridViewItem::is_active() const
-{
-  BLI_assert_msg(get_view().is_reconstructed(),
-                 "State can't be queried until reconstruction is completed");
-  return is_active_;
+  view_item_but_->view_item = reinterpret_cast<uiViewItemHandle *>(this);
+  UI_but_func_set(&view_item_but_->but, grid_tile_click_fn, view_item_but_, nullptr);
 }
 
 void AbstractGridViewItem::on_activate()
@@ -158,11 +152,6 @@ void AbstractGridViewItem::change_state_delayed()
   }
 }
 
-void AbstractGridViewItem::update_from_old(const AbstractGridViewItem &old)
-{
-  is_active_ = old.is_active_;
-}
-
 void AbstractGridViewItem::activate()
 {
   BLI_assert_msg(get_view().is_reconstructed(),
@@ -473,24 +462,3 @@ std::optional<bool> PreviewGridItem::should_be_active() const
 }
 
 }  // namespace blender::ui
-
-using namespace blender::ui;
-
-/* ---------------------------------------------------------------------- */
-/* C-API */
-
-using namespace blender::ui;
-
-bool UI_grid_view_item_is_active(const uiGridViewItemHandle *item_handle)
-{
-  const AbstractGridViewItem &item = reinterpret_cast<const AbstractGridViewItem &>(*item_handle);
-  return item.is_active();
-}
-
-bool UI_grid_view_item_matches(const uiGridViewItemHandle *a_handle,
-                               const uiGridViewItemHandle *b_handle)
-{
-  const AbstractGridViewItem &a = reinterpret_cast<const AbstractGridViewItem &>(*a_handle);
-  const AbstractGridViewItem &b = reinterpret_cast<const AbstractGridViewItem &>(*b_handle);
-  return a.matches(b);
-}
diff --git a/source/blender/editors/interface/interface_view.cc b/source/blender/editors/interface/views/interface_view.cc
index 70728565263..c568a8cab74 100644
--- a/source/blender/editors/interface/interface_view.cc
+++ b/source/blender/editors/interface/views/interface_view.cc
@@ -3,10 +3,16 @@
 /** \file
  * \ingroup edinterface
  *
- * This part of the UI-View API is mostly needed to support persistent state of items within the
- * view. Views are stored in #uiBlock's, and kept alive with it until after the next redraw. So we
- * can compare the old view items with the new view items and keep state persistent for matching
- * ones.
+ * Code to manage views as part of the regular screen hierarchy. E.g. managing ownership of views
+ * inside blocks (#uiBlock.views), looking up items in the region, passing WM notifiers to views,
+ * etc.
+ *
+ * Blocks and their contained views are reconstructed on every redraw. This file also contains
+ * functions related to this recreation of views inside blocks. For example to query state
+ * information before the view is done reconstructing (#AbstractView.is_reconstructed() returns
+ * false), it may be enough to query the previous version of the block/view/view-item. Since such
+ * queries rely on the details of the UI reconstruction process, they should remain internal to
+ * `interface/` code.
  */
 
 #include <memory>
@@ -86,24 +92,24 @@ void UI_block_views_listen(const uiBlock *block, const wmRegionListenerParams *l
   }
 }
 
-uiTreeViewItemHandle *UI_block_tree_view_find_item_at(const ARegion *region, const int xy[2])
+uiViewItemHandle *UI_region_views_find_item_at(const ARegion *region, const int xy[2])
 {
-  uiButTreeRow *tree_row_but = (uiButTreeRow *)ui_tree_row_find_mouse_over(region, xy);
-  if (!tree_row_but) {
+  uiButViewItem *item_but = (uiButViewItem *)ui_view_item_find_mouse_over(region, xy);
+  if (!item_but) {
     return nullptr;
   }
 
-  return tree_row_but->tree_item;
+  return item_but->view_item;
 }
 
-uiTreeViewItemHandle *UI_block_tree_view_find_active_item(const ARegion *region)
+uiViewItemHandle *UI_region_views_find_active_item(const ARegion *region)
 {
-  uiButTreeRow *tree_row_but = (uiButTreeRow *)ui_tree_row_find_active(region);
-  if (!tree_row_but) {
+  uiButViewItem *item_but = (uiButViewItem *)ui_view_item_find_active(region);
+  if (!item_but) {
     return nullptr;
   }
 
-  return tree_row_but->tree_item;
+  return item_but->view_item;
 }
 
 static StringRef ui_block_view_find_idname(const uiBlock &block, const AbstractView &view)
@@ -151,39 +157,38 @@ uiViewHandle *ui_block_view_find_matching_in_old_block(const uiBlock *new_block,
   return reinterpret_cast<uiViewHandle *>(old_view);
 }
 
-uiButTreeRow *ui_block_view_find_treerow_in_old_block(const uiBlock *new_block,
-                                                      const uiTreeViewItemHandle *new_item_handle)
+uiButViewItem *ui_block_view_find_matching_view_item_but_in_old_block(
+    const uiBlock *new_block, const uiViewItemHandle *new_item_handle)
 {
   uiBlock *old_block = new_block->oldblock;
   if (!old_block) {
     return nullptr;
   }
 
-  const AbstractTreeViewItem &new_item = *reinterpret_cast<const AbstractTreeViewItem *>(
-      new_item_handle);
+  const AbstractViewItem &new_item = *reinterpret_cast<const AbstractViewItem *>(new_item_handle);
   const AbstractView *old_view = ui_block_view_find_matching_in_old_block_impl(
-      *new_block, new_item.get_tree_view());
+      *new_block, new_item.get_view());
   if (!old_view) {
     return nullptr;
   }
 
   LISTBASE_FOREACH (uiBut *, old_but, &old_block->buttons) {
-    if (old_but->type != UI_BTYPE_TREEROW) {
+    if (old_but->type != UI_BTYPE_VIEW_ITEM) {
       continue;
     }
-    uiButTreeRow *old_treerow_but = (uiButTreeRow *)old_but;
-    if (!old_treerow_but->tree_item) {
+    uiButViewItem *old_item_but = (uiButViewItem *)old_but;
+    if (!old_item_but->view_item) {
       continue;
     }
-    AbstractTreeViewItem &old_item = *reinterpret_cast<AbstractTreeViewItem *>(
-        old_treerow_but->tree_item);
-    /* Check if the row is from the expected tree-view. */
-    if (&old_item.get_tree_view() != old_view) {
+    AbstractViewItem &old_item = *reinterpret_cast<AbstractViewItem *>(old_item_but->view_item);
+    /* Check if the item is from the expected view. */
+    if (&old_item.get_view() != old_view) {
       continue;
     }
 
-    if (UI_tree_view_item_matches(new_item_handle, old_treerow_but->tree_item)) {
-      return old_treerow_but;
+    if (UI_view_item_matches(reinterpret_cast<const uiViewItemHandle *>(&new_item),
+                             reinterpret_cast<const uiViewItemHandle *>(&old_item))) {
+      return old_item_but;
     }
   }
 
diff --git a/source/blender/editors/interface/tree_view.cc b/source/blender/editors/interface/views/tree_view.cc
index d29cf367e59..21078b711c7 100644
--- a/source/blender/editors/interface/tree_view.cc
+++ b/source/blender/editors/interface/views/tree_view.cc
@@ -37,9 +37,11 @@ AbstractTreeViewItem &TreeViewItemContainer::add_tree_item(
   if (root_ == nullptr) {
     root_ = this;
   }
-
+  AbstractTreeView &tree_view = static_cast<AbstractTreeView &>(*root_);
   AbstractTreeViewItem &added_item = *children_.last();
   added_item.root_ = root_;
+  tree_view.register_item(added_item);
+
   if (root_ != this) {
     /* Any item that isn't the root can be assumed to the a #AbstractTreeViewItem. Not entirely
      * nice to static_cast this, but well... */
@@ -95,7 +97,7 @@ AbstractTreeViewItem *AbstractTreeView::find_matching_child(
     const AbstractTreeViewItem &lookup_item, const TreeViewOrItem &items)
 {
   for (const auto &iter_item : items.children_) {
-    if (lookup_item.matches(*iter_item)) {
+    if (lookup_item.matches_single(*iter_item)) {
       /* We have a matching item! */
       return iter_item.get();
     }
@@ -118,9 +120,8 @@ void AbstractTreeViewItem::tree_row_click_fn(struct bContext * /*C*/,
                                              void *but_arg1,
                                              void * /*arg2*/)
 {
-  uiButTreeRow *tree_row_but = (uiButTreeRow *)but_arg1;
-  AbstractTreeViewItem &tree_item = reinterpret_cast<AbstractTreeViewItem &>(
-      *tree_row_but->tree_item);
+  uiButViewItem *item_but = (uiButViewItem *)but_arg1;
+  AbstractTreeViewItem &tree_item = reinterpret_cast<AbstractTreeViewItem &>(*item_but->view_item);
 
   tree_item.activate();
   /* Not only activate the item, also show its children. Maybe this should be optional, or
@@ -131,11 +132,11 @@ void AbstractTreeViewItem::tree_row_click_fn(struct bContext * /*C*/,
 void AbstractTreeViewItem::add_treerow_button(uiBlock &block)
 {
   /* For some reason a width > (UI_UNIT_X * 2) make the layout system use all available width. */
-  tree_row_but_ = (uiButTreeRow *)uiDefBut(
-      &block, UI_BTYPE_TREEROW, 0, "", 0, 0, UI_UNIT_X * 10, UI_UNIT_Y, nullptr, 0, 0, 0, 0, "");
+  view_item_but_ = (uiButViewItem *)uiDefBut(
+      &block, UI_BTYPE_VIEW_ITEM, 0, "", 0, 0, UI_UNIT_X * 10, UI_UNIT_Y, nullptr, 0, 0, 0, 0, "");
 
-  tree_row_but_->tree_item = reinterpret_cast<uiTreeViewItemHandle *>(this);
-  UI_but_func_set(&tree_row_but_->but, tree_row_click_fn, tree_row_but_, nullptr);
+  view_item_but_->view_item = reinterpret_cast<uiViewItemHandle *>(this);
+  UI_but_func_set(&view_item_but_->but, tree_row_click_fn, view_item_but_, nullptr);
 }
 
 void AbstractTreeViewItem::add_indent(uiLayout &row) const
@@ -167,10 +168,9 @@ void AbstractTreeViewItem::collapse_chevron_click_fn(struct bContext *C,
 
   const wmWindow *win = CTX_wm_window(C);
   const ARegion *region = CTX_wm_region(C);
-  uiTreeViewItemHandle *hovered_item_handle = UI_block_tree_view_find_item_at(region,
-                                                                              win->eventstate->xy);
-  AbstractTreeViewItem *hovered_item = reinterpret_cast<AbstractTreeViewItem *>(
-      hovered_item_handle);
+  uiViewItemHandle *hovered_item_handle = UI_region_views_find_item_at(region, win->eventstate->xy);
+
+  AbstractTreeViewItem *hovered_item = from_item_handle<AbstractTreeViewItem>(hovered_item_handle);
   BLI_assert(hovered_item != nullptr);
 
   hovered_item->toggle_collapsed();
@@ -204,40 +204,6 @@ void AbstractTreeViewItem::add_collapse_chevron(uiBlock &block) const
   BLI_assert(is_collapse_chevron_but(but));
 }
 
-AbstractTreeViewItem *AbstractTreeViewItem::find_tree_item_from_rename_button(
-    const uiBut &rename_but)
-{
-  /* A minimal sanity check, can't do much more here. */
-  BLI_assert(rename_but.type == UI_BTYPE_TEXT && rename_but.poin);
-
-  LISTBASE_FOREACH (uiBut *, but, &rename_but.block->buttons) {
-    if (but->type != UI_BTYPE_TREEROW) {
-      continue;
-    }
-
-    uiButTreeRow *tree_row_but = (uiButTreeRow *)but;
-    AbstractTreeViewItem *item = reinterpret_cast<AbstractTreeViewItem *>(tree_row_but->tree_item);
-    const AbstractTreeView &tree_view = item->get_tree_view();
-
-    if (item->is_renaming() && (tree_view.get_rename_buffer().data() == rename_but.poin)) {
-      return item;
-    }
-  }
-
-  return nullptr;
-}
-
-void AbstractTreeViewItem::rename_button_fn(bContext *UNUSED(C), void *arg, char *UNUSED(origstr))
-{
-  const uiBut *rename_but = static_cast<uiBut *>(arg);
-  AbstractTreeViewItem *item = find_tree_item_from_rename_button(*rename_but);
-  BLI_assert(item);
-
-  const AbstractTreeView &tree_view = item->get_tree_view();
-  item->rename(tree_view.get_rename_buffer().data());
-  item->end_renaming();
-}
-
 void AbstractTreeViewItem::add_rename_button(uiLayout &row)
 {
   uiBlock *block = uiLayoutGetBlock(&row);
@@ -247,33 +213,7 @@ void AbstractTreeViewItem::add_rename_button(uiLayout &row)
   /* Enable emboss for the text button. */
   UI_block_emboss_set(block, UI_EMBOSS);
 
-  AbstractTreeView &tree_view = get_tree_view();
-  uiBut *rename_but = uiDefBut(block,
-                               UI_BTYPE_TEXT,
-                               1,
-                               "",
-                               0,
-                               0,
-                               UI_UNIT_X * 10,
-                               UI_UNIT_Y,
-                               tree_view.get_rename_buffer().data(),
-                               1.0f,
-                               tree_view.get_rename_buffer().size(),
-                               0,
-                               0,
-                               "");
-
-  /* Gotta be careful with what's passed to the `arg1` here. Any tree data will be freed once the
-   * callback is executed. */
-  UI_but_func_rename_set(rename_but, AbstractTreeViewItem::rename_button_fn, rename_but);
-  UI_but_flag_disable(rename_but, UI_BUT_UNDO);
-
-  const bContext *evil_C = static_cast<bContext *>(block->evil_C);
-  ARegion *region = CTX_wm_region(evil_C);
-  /* Returns false if the button was removed. */
-  if (UI_but_active_only(evil_C, region, block, rename_but) == false) {
-    end_renaming();
-  }
+  AbstractViewItem::add_rename_button(*block);
 
   UI_block_emboss_set(block, previous_emboss);
   UI_block_layout_set_current(block, &row);
@@ -306,80 +246,35 @@ bool AbstractTreeViewItem::supports_collapsing() const
   return true;
 }
 
-std::unique_ptr<AbstractTreeViewItemDragController> AbstractTreeViewItem::create_drag_controller()
-    const
-{
-  /* There's no drag controller (and hence no drag support) by default. */
-  return nullptr;
-}
-
-std::unique_ptr<AbstractTreeViewItemDropController> AbstractTreeViewItem::create_drop_controller()
-    const
-{
-  /* There's no drop controller (and hence no drop support) by default. */
-  return nullptr;
-}
-
-bool AbstractTreeViewItem::supports_renaming() const
+StringRef AbstractTreeViewItem::get_rename_string() const
 {
-  /* No renaming by default. */
-  return false;
+  return label_;
 }
 
 bool AbstractTreeViewItem::rename(StringRefNull new_name)
 {
-  /* It is important to update the label after renaming, so #AbstractTreeViewItem::matches()
+  /* It is important to update the label after renaming, so #AbstractTreeViewItem::matches_single()
    * recognizes the item. (It only compares labels by default.) */
   label_ = new_name;
   return true;
 }
 
-void AbstractTreeViewItem::build_context_menu(bContext & /*C*/, uiLayout & /*column*/) const
+void AbstractTreeViewItem::update_from_old(const AbstractViewItem &old)
 {
-  /* No context menu by default. */
-}
+  AbstractViewItem::update_from_old(old);
 
-void AbstractTreeViewItem::update_from_old(const AbstractTreeViewItem &old)
-{
-  is_open_ = old.is_open_;
-  is_active_ = old.is_active_;
-  is_renaming_ = old.is_renaming_;
+  const AbstractTreeViewItem &old_tree_item = dynamic_cast<const AbstractTreeViewItem &>(old);
+  is_open_ = old_tree_item.is_open_;
 }
 
-bool AbstractTreeViewItem::matches(const AbstractTreeViewItem &other) const
+bool AbstractTreeViewItem::matches_single(const AbstractTreeViewItem &other) const
 {
   return label_ == other.label_;
 }
 
-void AbstractTreeViewItem::begin_renaming()
-{
-  AbstractTreeView &tree_view = get_tree_view();
-  if (tree_view.is_renaming() || !supports_renaming()) {
-    return;
-  }
-
-  if (tree_view.begin_renaming()) {
-    is_renaming_ = true;
-  }
-
-  std::copy(std::begin(label_), std::end(label_), std::begin(tree_view.get_rename_buffer()));
-}
-
-void AbstractTreeViewItem::end_renaming()
-{
-  if (!is_renaming()) {
-    return;
-  }
-
-  is_renaming_ = false;
-
-  AbstractTreeView &tree_view = get_tree_view();
-  tree_view.end_renaming();
-}
-
 AbstractTreeView &AbstractTreeViewItem::get_tree_view() const
 {
-  return static_cast<AbstractTreeView &>(*root_);
+  return dynamic_cast<AbstractTreeView &>(get_view());
 }
 
 int AbstractTreeViewItem::count_parents() const
@@ -415,26 +310,19 @@ void AbstractTreeViewItem::deactivate()
   is_active_ = false;
 }
 
-bool AbstractTreeViewItem::is_active() const
-{
-  BLI_assert_msg(get_tree_view().is_reconstructed(),
-                 "State can't be queried until reconstruction is completed");
-  return is_active_;
-}
-
 bool AbstractTreeViewItem::is_hovered() const
 {
   BLI_assert_msg(get_tree_view().is_reconstructed(),
                  "State can't be queried until reconstruction is completed");
-  BLI_assert_msg(tree_row_but_ != nullptr,
+  BLI_assert_msg(view_item_but_ != nullptr,
                  "Hovered state can't be queried before the tree row is being built");
 
-  const uiTreeViewItemHandle *this_handle = reinterpret_cast<const uiTreeViewItemHandle *>(this);
+  const uiViewItemHandle *this_item_handle = reinterpret_cast<const uiViewItemHandle *>(this);
   /* The new layout hasn't finished construction yet, so the final state of the button is unknown.
    * Get the matching button from the previous redraw instead. */
-  uiButTreeRow *old_treerow_but = ui_block_view_find_treerow_in_old_block(tree_row_but_->but.block,
-                                                                          this_handle);
-  return old_treerow_but && (old_treerow_but->but.flag & UI_ACTIVE);
+  uiButViewItem *old_item_but = ui_block_view_find_matching_view_item_but_in_old_block(
+      view_item_but_->but.block, this_item_handle);
+  return old_item_but && (old_item_but->but.flag & UI_ACTIVE);
 }
 
 bool AbstractTreeViewItem::is_collapsed() const
@@ -462,11 +350,6 @@ bool AbstractTreeViewItem::is_collapsible() const
   return this->supports_collapsing();
 }
 
-bool AbstractTreeViewItem::is_renaming() const
-{
-  return is_renaming_;
-}
-
 void AbstractTreeViewItem::ensure_parents_uncollapsed()
 {
   for (AbstractTreeViewItem *parent = parent_; parent; parent = parent->parent_) {
@@ -474,19 +357,21 @@ void AbstractTreeViewItem::ensure_parents_uncollapsed()
   }
 }
 
-bool AbstractTreeViewItem::matches_including_parents(const AbstractTreeViewItem &other) const
+bool AbstractTreeViewItem::matches(const AbstractViewItem &other) const
 {
-  if (!matches(other)) {
+  const AbstractTreeViewItem &other_tree_item = dynamic_cast<const AbstractTreeViewItem &>(other);
+
+  if (!matches_single(other_tree_item)) {
     return false;
   }
-  if (count_parents() != other.count_parents()) {
+  if (count_parents() != other_tree_item.count_parents()) {
     return false;
   }
 
-  for (AbstractTreeViewItem *parent = parent_, *other_parent = other.parent_;
+  for (AbstractTreeViewItem *parent = parent_, *other_parent = other_tree_item.parent_;
        parent && other_parent;
        parent = parent->parent_, other_parent = other_parent->parent_) {
-    if (!parent->matches(*other_parent)) {
+    if (!parent->matches_single(*other_parent)) {
       return false;
     }
   }
@@ -494,9 +379,9 @@ bool AbstractTreeViewItem::matches_including_parents(const AbstractTreeViewItem
   return true;
 }
 
-uiButTreeRow *AbstractTreeViewItem::tree_row_button()
+uiButViewItem *AbstractTreeViewItem::view_item_button()
 {
-  return tree_row_but_;
+  return view_item_but_;
 }
 
 void AbstractTreeViewItem::change_state_delayed()
@@ -509,25 +394,6 @@ void AbstractTreeViewItem::change_state_delayed()
 
 /* ---------------------------------------------------------------------- */
 
-AbstractTreeViewItemDragController::AbstractTreeViewItemDragController(AbstractTreeView &tree_view)
-    : tree_view_(tree_view)
-{
-}
-
-void AbstractTreeViewItemDragController::on_drag_start()
-{
-  /* Do nothing by default. */
-}
-
-/* ---------------------------------------------------------------------- */
-
-AbstractTreeViewItemDropController::AbstractTreeViewItemDropController(AbstractTreeView &tree_view)
-    : tree_view_(tree_view)
-{
-}
-
-/* ---------------------------------------------------------------------- */
-
 class TreeViewLayoutBuilder {
   uiBlock &block_;
 
@@ -573,7 +439,7 @@ void TreeViewLayoutBuilder::polish_layout(const uiBlock &block)
       UI_but_drawflag_enable(static_cast<uiBut *>(but->next), UI_BUT_NO_TEXT_PADDING);
     }
 
-    if (but->type == UI_BTYPE_TREEROW) {
+    if (but->type == UI_BTYPE_VIEW_ITEM) {
       break;
     }
   }
@@ -685,154 +551,4 @@ std::optional<bool> BasicTreeViewItem::should_be_active() const
   return std::nullopt;
 }
 
-/* ---------------------------------------------------------------------- */
-
-/**
- * Helper for a public (C-)API, presenting higher level functionality. Has access to internal
- * data/functionality (friend of #AbstractTreeViewItem), which is sometimes needed when
- * functionality of the API needs to be constructed from multiple internal conditions and/or
- * functions that on their own shouldn't be part of the API.
- */
-class TreeViewItemAPIWrapper {
- public:
-  static bool matches(const AbstractTreeViewItem &a, const AbstractTreeViewItem &b)
-  {
-    /* TODO should match the tree-view as well. */
-    return a.matches_including_parents(b);
-  }
-
-  static bool drag_start(bContext &C, const AbstractTreeViewItem &item)
-  {
-    const std::unique_ptr<AbstractTreeViewItemDragController> drag_controller =
-        item.create_drag_controller();
-    if (!drag_controller) {
-      return false;
-    }
-
-    WM_event_start_drag(&C,
-                        ICON_NONE,
-                        drag_controller->get_drag_type(),
-                        drag_controller->create_drag_data(),
-                        0,
-                        WM_DRAG_FREE_DATA);
-    drag_controller->on_drag_start();
-
-    return true;
-  }
-
-  static bool can_drop(const AbstractTreeViewItem &item,
-                       const wmDrag &drag,
-                       const char **r_disabled_hint)
-  {
-    const std::unique_ptr<AbstractTreeViewItemDropController> drop_controller =
-        item.create_drop_controller();
-    if (!drop_controller) {
-      return false;
-    }
-
-    return drop_controller->can_drop(drag, r_disabled_hint);
-  }
-
-  static std::string drop_tooltip(const AbstractTreeViewItem &item, const wmDrag &drag)
-  {
-    const std::unique_ptr<AbstractTreeViewItemDropController> drop_controller =
-        item.create_drop_controller();
-    if (!drop_controller) {
-      return {};
-    }
-
-    return drop_controller->drop_tooltip(drag);
-  }
-
-  static bool drop_handle(bContext &C, const AbstractTreeViewItem &item, const ListBase &drags)
-  {
-    std::unique_ptr<AbstractTreeViewItemDropController> drop_controller =
-        item.create_drop_controller();
-
-    const char *disabled_hint_dummy = nullptr;
-    LISTBASE_FOREACH (const wmDrag *, drag, &drags) {
-      if (drop_controller->can_drop(*drag, &disabled_hint_dummy)) {
-        return drop_controller->on_drop(&C, *drag);
-      }
-    }
-
-    return false;
-  }
-
-  static bool can_rename(const AbstractTreeViewItem &item)
-  {
-    const AbstractTreeView &tree_view = item.get_tree_view();
-    return !tree_view.is_renaming() && item.supports_renaming();
-  }
-};
-
 }  // namespace blender::ui
-
-/* ---------------------------------------------------------------------- */
-/* C-API */
-
-using namespace blender::ui;
-
-bool UI_tree_view_item_is_active(const uiTreeViewItemHandle *item_handle)
-{
-  const AbstractTreeViewItem &item = reinterpret_cast<const AbstractTreeViewItem &>(*item_handle);
-  return item.is_active();
-}
-
-bool UI_tree_view_item_matches(const uiTreeViewItemHandle *a_handle,
-                               const uiTreeViewItemHandle *b_handle)
-{
-  const AbstractTreeViewItem &a = reinterpret_cast<const AbstractTreeViewItem &>(*a_handle);
-  const AbstractTreeViewItem &b = reinterpret_cast<const AbstractTreeViewItem &>(*b_handle);
-  return TreeViewItemAPIWrapper::matches(a, b);
-}
-
-bool UI_tree_view_item_drag_start(bContext *C, uiTreeViewItemHandle *item_)
-{
-  const AbstractTreeViewItem &item = reinterpret_cast<const AbstractTreeViewItem &>(*item_);
-  return TreeViewItemAPIWrapper::drag_start(*C, item);
-}
-
-bool UI_tree_view_item_can_drop(const uiTreeViewItemHandle *item_,
-                                const wmDrag *drag,
-                                const char **r_disabled_hint)
-{
-  const AbstractTreeViewItem &item = reinterpret_cast<const AbstractTreeViewItem &>(*item_);
-  return TreeViewItemAPIWrapper::can_drop(item, *drag, r_disabled_hint);
-}
-
-char *UI_tree_view_item_drop_tooltip(const uiTreeViewItemHandle *item_, const wmDrag *drag)
-{
-  const AbstractTreeViewItem &item = reinterpret_cast<const AbstractTreeViewItem &>(*item_);
-
-  const std::string tooltip = TreeViewItemAPIWrapper::drop_tooltip(item, *drag);
-  return tooltip.empty() ? nullptr : BLI_strdup(tooltip.c_str());
-}
-
-bool UI_tree_view_item_drop_handle(bContext *C,
-                                   const uiTreeViewItemHandle *item_,
-                                   const ListBase *drags)
-{
-  const AbstractTreeViewItem &item = reinterpret_cast<const AbstractTreeViewItem &>(*item_);
-  return TreeViewItemAPIWrapper::drop_handle(*C, item, *drags);
-}
-
-bool UI_tree_view_item_can_rename(const uiTreeViewItemHandle *item_handle)
-{
-  const AbstractTreeViewItem &item = reinterpret_cast<const AbstractTreeViewItem &>(*item_handle);
-  return TreeViewItemAPIWrapper::can_rename(item);
-}
-
-void UI_tree_view_item_begin_rename(uiTreeViewItemHandle *item_handle)
-{
-  AbstractTreeViewItem &item = reinterpret_cast<AbstractTreeViewItem &>(*item_handle);
-  item.begin_renaming();
-}
-
-void UI_tree_view_item_context_menu_build(bContext *C,
-                                          const uiTreeViewItemHandle *item_handle,
-                                          uiLayout *column)
-{
-  const AbstractTreeViewItem &item = reinterpret_cast<const AbstractTreeViewItem &>(*item_handle);
-  item.build_context_menu(*C, *column);
-}
diff --git a/source/blender/editors/mask/mask_query.c b/source/blender/editors/mask/mask_query.c
index 02e1524e23e..bb865e925d7 100644
--- a/source/blender/editors/mask/mask_query.c
+++ b/source/blender/editors/mask/mask_query.c
@@ -682,8 +682,7 @@ void ED_mask_get_size(ScrArea *area, int *width, int *height)
       }
       case SPACE_SEQ: {
         //              Scene *scene = CTX_data_scene(C);
-        //              *width = (scene->r.size * scene->r.xsch) / 100;
-        //              *height = (scene->r.size * scene->r.ysch) / 100;
+        //              BKE_render_resolution(&scene->r, false, width, height);
         break;
       }
       case SPACE_IMAGE: {
diff --git a/source/blender/editors/mesh/editface.cc b/source/blender/editors/mesh/editface.cc
index 69fe69fe117..b69cd8b8606 100644
--- a/source/blender/editors/mesh/editface.cc
+++ b/source/blender/editors/mesh/editface.cc
@@ -551,3 +551,54 @@ void paintvert_select_ungrouped(Object *ob, bool extend, bool flush_flags)
     paintvert_flush_flags(ob);
   }
 }
+
+void paintvert_hide(bContext *C, Object *ob, const bool unselected)
+{
+  Mesh *const me = BKE_mesh_from_object(ob);
+
+  if (me == NULL || me->totvert == 0) {
+    return;
+  }
+
+  for (int i = 0; i < me->totvert; i++) {
+    MVert *const mvert = &me->mvert[i];
+
+    if ((mvert->flag & ME_HIDE) == 0) {
+      if (((mvert->flag & SELECT) == 0) == unselected) {
+        mvert->flag |= ME_HIDE;
+      }
+    }
+
+    if (mvert->flag & ME_HIDE) {
+      mvert->flag &= ~SELECT;
+    }
+  }
+
+  BKE_mesh_flush_hidden_from_verts(me);
+
+  paintvert_flush_flags(ob);
+  paintvert_tag_select_update(C, ob);
+}
+
+void paintvert_reveal(bContext *C, Object *ob, const bool select)
+{
+  Mesh *const me = BKE_mesh_from_object(ob);
+
+  if (me == NULL || me->totvert == 0) {
+    return;
+  }
+
+  for (int i = 0; i < me->totvert; i++) {
+    MVert *const mvert = &me->mvert[i];
+
+    if (mvert->flag & ME_HIDE) {
+      SET_FLAG_FROM_TEST(mvert->flag, select, SELECT);
+      mvert->flag &= ~ME_HIDE;
+    }
+  }
+
+  BKE_mesh_flush_hidden_from_verts(me);
+
+  paintvert_flush_flags(ob);
+  paintvert_tag_select_update(C, ob);
+}
diff --git a/source/blender/editors/mesh/editmesh_utils.c b/source/blender/editors/mesh/editmesh_utils.c
index 83968955583..ac5530c8ea9 100644
--- a/source/blender/editors/mesh/editmesh_utils.c
+++ b/source/blender/editors/mesh/editmesh_utils.c
@@ -593,13 +593,143 @@ UvMapVert *BM_uv_vert_map_at_index(UvVertMap *vmap, uint v)
   return vmap->vert[v];
 }
 
+#define INVALID_ISLAND ((unsigned int)-1)
+
+static void bm_uv_assign_island(UvElementMap *element_map,
+                                UvElement *element,
+                                int nisland,
+                                uint *map,
+                                UvElement *islandbuf,
+                                int islandbufsize)
+{
+  element->island = nisland;
+  map[element - element_map->buf] = islandbufsize;
+
+  /* Copy *element to islandbuf[islandbufsize]. */
+  islandbuf[islandbufsize].l = element->l;
+  islandbuf[islandbufsize].separate = element->separate;
+  islandbuf[islandbufsize].loop_of_poly_index = element->loop_of_poly_index;
+  islandbuf[islandbufsize].island = element->island;
+  islandbuf[islandbufsize].flag = element->flag;
+}
+
+static int bm_uv_edge_select_build_islands(UvElementMap *element_map,
+                                           const Scene *scene,
+                                           UvElement *islandbuf,
+                                           uint *map,
+                                           bool uv_selected,
+                                           int cd_loop_uv_offset)
+{
+  int totuv = element_map->totalUVs;
+
+  /* For each UvElement, locate the "separate" UvElement that precedes it in the linked list. */
+  UvElement **head_table = MEM_mallocN(sizeof(*head_table) * totuv, "uv_island_head_table");
+  for (int i = 0; i < totuv; i++) {
+    UvElement *head = element_map->buf + i;
+    if (head->separate) {
+      UvElement *element = head;
+      while (element) {
+        head_table[element - element_map->buf] = head;
+        element = element->next;
+        if (element && element->separate) {
+          break;
+        }
+      }
+    }
+  }
+
+  /* Depth first search the graph, building islands as we go. */
+  int nislands = 0;
+  int islandbufsize = 0;
+  int stack_upper_bound = totuv;
+  UvElement **stack_uv = MEM_mallocN(sizeof(*stack_uv) * stack_upper_bound,
+                                     "uv_island_element_stack");
+  int stacksize_uv = 0;
+  for (int i = 0; i < totuv; i++) {
+    UvElement *element = element_map->buf + i;
+    if (element->island != INVALID_ISLAND) {
+      /* Unique UV (element and all it's children) are already part of an island. */
+      continue;
+    }
+
+    /* Create a new island, i.e. nislands++. */
+
+    BLI_assert(element->separate); /* Ensure we're the head of this unique UV. */
+
+    /* Seed the graph search. */
+    stack_uv[stacksize_uv++] = element;
+    while (element) {
+      bm_uv_assign_island(element_map, element, nislands, map, islandbuf, islandbufsize++);
+      element = element->next;
+      if (element && element->separate) {
+        break;
+      }
+    }
+
+    /* Traverse the graph. */
+    while (stacksize_uv) {
+      BLI_assert(stacksize_uv < stack_upper_bound);
+      element = stack_uv[--stacksize_uv];
+      while (element) {
+
+        /* Scan forwards around the BMFace that contains element->l. */
+        if (!uv_selected || uvedit_edge_select_test(scene, element->l, cd_loop_uv_offset)) {
+          UvElement *next = BM_uv_element_get(element_map, element->l->next->f, element->l->next);
+          if (next->island == INVALID_ISLAND) {
+            UvElement *tail = head_table[next - element_map->buf];
+            stack_uv[stacksize_uv++] = tail;
+            while (tail) {
+              bm_uv_assign_island(element_map, tail, nislands, map, islandbuf, islandbufsize++);
+              tail = tail->next;
+              if (tail && tail->separate) {
+                break;
+              }
+            }
+          }
+        }
+
+        /* Scan backwards around the BMFace that contains element->l. */
+        if (!uv_selected || uvedit_edge_select_test(scene, element->l->prev, cd_loop_uv_offset)) {
+          UvElement *prev = BM_uv_element_get(element_map, element->l->prev->f, element->l->prev);
+          if (prev->island == INVALID_ISLAND) {
+            UvElement *tail = head_table[prev - element_map->buf];
+            stack_uv[stacksize_uv++] = tail;
+            while (tail) {
+              bm_uv_assign_island(element_map, tail, nislands, map, islandbuf, islandbufsize++);
+              tail = tail->next;
+              if (tail && tail->separate) {
+                break;
+              }
+            }
+          }
+        }
+
+        /* The same for all the UvElements in this unique UV. */
+        element = element->next;
+        if (element && element->separate) {
+          break;
+        }
+      }
+    }
+    nislands++;
+  }
+  BLI_assert(islandbufsize == totuv);
+
+  MEM_SAFE_FREE(stack_uv);
+  MEM_SAFE_FREE(head_table);
+
+  return nislands;
+}
+
 UvElementMap *BM_uv_element_map_create(BMesh *bm,
                                        const Scene *scene,
-                                       const bool face_selected,
                                        const bool uv_selected,
                                        const bool use_winding,
                                        const bool do_islands)
 {
+  /* In uv sync selection, all UVs are visible. */
+  const bool face_selected = !(scene->toolsettings->uv_flag & UV_SYNC_SELECTION);
+
   BMVert *ev;
   BMFace *efa;
   BMLoop *l;
@@ -623,15 +753,21 @@ UvElementMap *BM_uv_element_map_create(BMesh *bm,
 
   /* generate UvElement array */
   BM_ITER_MESH (efa, &iter, bm, BM_FACES_OF_MESH) {
-    if (!face_selected || BM_elem_flag_test(efa, BM_ELEM_SELECT)) {
-      if (!uv_selected) {
-        totuv += efa->len;
-      }
-      else {
-        BM_ITER_ELEM (l, &liter, efa, BM_LOOPS_OF_FACE) {
-          if (uvedit_uv_select_test(scene, l, cd_loop_uv_offset)) {
-            totuv++;
-          }
+    if (BM_elem_flag_test(efa, BM_ELEM_HIDDEN)) {
+      continue;
+    }
+
+    if (face_selected && !BM_elem_flag_test(efa, BM_ELEM_SELECT)) {
+      continue;
+    }
+
+    if (!uv_selected) {
+      totuv += efa->len;
+    }
+    else {
+      BM_ITER_ELEM (l, &liter, efa, BM_LOOPS_OF_FACE) {
+        if (uvedit_uv_select_test(scene, l, cd_loop_uv_offset)) {
+          totuv++;
         }
       }
     }
@@ -649,46 +785,48 @@ UvElementMap *BM_uv_element_map_create(BMesh *bm,
                                                     "UvElement");
 
   if (use_winding) {
-    winding = MEM_mallocN(sizeof(*winding) * totfaces, "winding");
+    winding = MEM_callocN(sizeof(*winding) * totfaces, "winding");
   }
 
   BM_ITER_MESH_INDEX (efa, &iter, bm, BM_FACES_OF_MESH, j) {
 
-    if (use_winding) {
-      winding[j] = false;
+    if (BM_elem_flag_test(efa, BM_ELEM_HIDDEN)) {
+      continue;
     }
 
-    if (!face_selected || BM_elem_flag_test(efa, BM_ELEM_SELECT)) {
-      float(*tf_uv)[2] = NULL;
-
-      if (use_winding) {
-        tf_uv = (float(*)[2])BLI_buffer_reinit_data(&tf_uv_buf, vec2f, efa->len);
-      }
+    if (face_selected && !BM_elem_flag_test(efa, BM_ELEM_SELECT)) {
+      continue;
+    }
 
-      BM_ITER_ELEM_INDEX (l, &liter, efa, BM_LOOPS_OF_FACE, i) {
-        if (uv_selected && !uvedit_uv_select_test(scene, l, cd_loop_uv_offset)) {
-          continue;
-        }
+    float(*tf_uv)[2] = NULL;
 
-        buf->l = l;
-        buf->separate = 0;
-        buf->island = INVALID_ISLAND;
-        buf->loop_of_poly_index = i;
+    if (use_winding) {
+      tf_uv = (float(*)[2])BLI_buffer_reinit_data(&tf_uv_buf, vec2f, efa->len);
+    }
 
-        buf->next = element_map->vert[BM_elem_index_get(l->v)];
-        element_map->vert[BM_elem_index_get(l->v)] = buf;
+    BM_ITER_ELEM_INDEX (l, &liter, efa, BM_LOOPS_OF_FACE, i) {
+      if (uv_selected && !uvedit_uv_select_test(scene, l, cd_loop_uv_offset)) {
+        continue;
+      }
 
-        if (use_winding) {
-          luv = BM_ELEM_CD_GET_VOID_P(l, cd_loop_uv_offset);
-          copy_v2_v2(tf_uv[i], luv->uv);
-        }
+      buf->l = l;
+      buf->separate = 0;
+      buf->island = INVALID_ISLAND;
+      buf->loop_of_poly_index = i;
 
-        buf++;
-      }
+      buf->next = element_map->vert[BM_elem_index_get(l->v)];
+      element_map->vert[BM_elem_index_get(l->v)] = buf;
 
       if (use_winding) {
-        winding[j] = cross_poly_v2(tf_uv, efa->len) > 0;
+        luv = BM_ELEM_CD_GET_VOID_P(l, cd_loop_uv_offset);
+        copy_v2_v2(tf_uv[i], luv->uv);
       }
+
+      buf++;
+    }
+
+    if (winding) {
+      winding[j] = cross_poly_v2(tf_uv, efa->len) > 0;
     }
   }
 
@@ -771,6 +909,15 @@ UvElementMap *BM_uv_element_map_create(BMesh *bm,
     island_number = MEM_mallocN(sizeof(*island_number) * totfaces, "uv_island_number_face");
     copy_vn_i(island_number, totfaces, INVALID_ISLAND);
 
+    const bool use_uv_edge_connectivity = scene->toolsettings->uv_flag & UV_SYNC_SELECTION ?
+                                              scene->toolsettings->selectmode & SCE_SELECT_EDGE :
+                                              scene->toolsettings->uv_selectmode & UV_SELECT_EDGE;
+    if (use_uv_edge_connectivity) {
+      nislands = bm_uv_edge_select_build_islands(
+          element_map, scene, islandbuf, map, uv_selected, cd_loop_uv_offset);
+      islandbufsize = totuv;
+    }
+
     /* at this point, every UvElement in vert points to a UvElement sharing the same vertex.
      * Now we should sort uv's in islands. */
     for (i = 0; i < totuv; i++) {
@@ -798,13 +945,8 @@ UvElementMap *BM_uv_element_map_create(BMesh *bm,
               if (element->l->f == efa) {
                 /* found the uv corresponding to our face and vertex.
                  * Now fill it to the buffer */
-                element->island = nislands;
-                map[element - element_map->buf] = islandbufsize;
-                islandbuf[islandbufsize].l = element->l;
-                islandbuf[islandbufsize].separate = element->separate;
-                islandbuf[islandbufsize].loop_of_poly_index = element->loop_of_poly_index;
-                islandbuf[islandbufsize].island = nislands;
-                islandbufsize++;
+                bm_uv_assign_island(
+                    element_map, element, nislands, map, islandbuf, islandbufsize++);
 
                 for (element = initelement; element; element = element->next) {
                   if (element->separate && element != initelement) {
diff --git a/source/blender/editors/object/CMakeLists.txt b/source/blender/editors/object/CMakeLists.txt
index 97376a495c1..a2f993c92b9 100644
--- a/source/blender/editors/object/CMakeLists.txt
+++ b/source/blender/editors/object/CMakeLists.txt
@@ -76,7 +76,6 @@ endif()
 if(WITH_EXPERIMENTAL_FEATURES)
   add_definitions(-DWITH_SIMULATION_DATABLOCK)
   add_definitions(-DWITH_POINT_CLOUD)
-  add_definitions(-DWITH_NEW_CURVES_TYPE)
 endif()
 
 blender_add_lib(bf_editor_object "${SRC}" "${INC}" "${INC_SYS}" "${LIB}")
diff --git a/source/blender/editors/object/object_add.cc b/source/blender/editors/object/object_add.cc
index 66e76addd6f..a8e11afba65 100644
--- a/source/blender/editors/object/object_add.cc
+++ b/source/blender/editors/object/object_add.cc
@@ -1335,21 +1335,21 @@ static int object_gpencil_add_exec(bContext *C, wmOperator *op)
     const char *ob_name = nullptr;
     switch (type) {
       case GP_EMPTY: {
-        ob_name = "GPencil";
+        ob_name = CTX_DATA_(BLT_I18NCONTEXT_ID_GPENCIL, "GPencil");
         break;
       }
       case GP_MONKEY: {
-        ob_name = "Suzanne";
+        ob_name = CTX_DATA_(BLT_I18NCONTEXT_ID_GPENCIL, "Suzanne");
         break;
       }
       case GP_STROKE: {
-        ob_name = "Stroke";
+        ob_name = CTX_DATA_(BLT_I18NCONTEXT_ID_GPENCIL, "Stroke");
         break;
       }
       case GP_LRT_OBJECT:
       case GP_LRT_SCENE:
       case GP_LRT_COLLECTION: {
-        ob_name = "Line Art";
+        ob_name = CTX_DATA_(BLT_I18NCONTEXT_ID_GPENCIL, "LineArt");
         break;
       }
       default: {
@@ -2071,16 +2071,16 @@ static int object_curves_empty_hair_add_exec(bContext *C, wmOperator *op)
   Scene *scene = CTX_data_scene(C);
 
   ushort local_view_bits;
-  blender::float3 loc, rot;
   if (!ED_object_add_generic_get_opts(
-          C, op, 'Z', loc, rot, nullptr, nullptr, &local_view_bits, nullptr)) {
+          C, op, 'Z', nullptr, nullptr, nullptr, nullptr, &local_view_bits, nullptr)) {
     return OPERATOR_CANCELLED;
   }
 
   Object *surface_ob = CTX_data_active_object(C);
   BLI_assert(surface_ob != nullptr);
 
-  Object *curves_ob = ED_object_add_type(C, OB_CURVES, nullptr, loc, rot, false, local_view_bits);
+  Object *curves_ob = ED_object_add_type(C, OB_CURVES, nullptr, nullptr, nullptr, false, local_view_bits);
+  BKE_object_apply_mat4(curves_ob, surface_ob->obmat, false, false);
 
   /* Set surface object. */
   Curves *curves_id = static_cast<Curves *>(curves_ob->data);
diff --git a/source/blender/editors/object/object_bake_api.c b/source/blender/editors/object/object_bake_api.c
index 58daf753679..a664d93bb2e 100644
--- a/source/blender/editors/object/object_bake_api.c
+++ b/source/blender/editors/object/object_bake_api.c
@@ -324,7 +324,7 @@ static bool write_external_bake_pixels(const char *filepath,
                                        const int height,
                                        const int margin,
                                        const int margin_type,
-                                       ImageFormatData *im_format,
+                                       ImageFormatData const *im_format,
                                        const bool is_noncolor,
                                        Mesh const *mesh_eval,
                                        char const *uv_layer,
diff --git a/source/blender/editors/object/object_edit.c b/source/blender/editors/object/object_edit.c
index e65b5a61299..4896ddb5258 100644
--- a/source/blender/editors/object/object_edit.c
+++ b/source/blender/editors/object/object_edit.c
@@ -1469,8 +1469,6 @@ void OBJECT_OT_paths_clear(wmOperatorType *ot)
 static int shade_smooth_exec(bContext *C, wmOperator *op)
 {
   const bool use_smooth = STREQ(op->idname, "OBJECT_OT_shade_smooth");
-  const bool use_auto_smooth = RNA_boolean_get(op->ptr, "use_auto_smooth");
-  const float auto_smooth_angle = RNA_float_get(op->ptr, "auto_smooth_angle");
   bool changed_multi = false;
   bool has_linked_data = false;
 
@@ -1518,7 +1516,11 @@ static int shade_smooth_exec(bContext *C, wmOperator *op)
     bool changed = false;
     if (ob->type == OB_MESH) {
       BKE_mesh_smooth_flag_set(ob->data, use_smooth);
-      BKE_mesh_auto_smooth_flag_set(ob->data, use_auto_smooth, auto_smooth_angle);
+      if (use_smooth) {
+        const bool use_auto_smooth = RNA_boolean_get(op->ptr, "use_auto_smooth");
+        const float auto_smooth_angle = RNA_float_get(op->ptr, "auto_smooth_angle");
+        BKE_mesh_auto_smooth_flag_set(ob->data, use_auto_smooth, auto_smooth_angle);
+      }
       BKE_mesh_batch_cache_dirty_tag(ob->data, BKE_MESH_BATCH_DIRTY_ALL);
       changed = true;
     }
diff --git a/source/blender/editors/render/render_opengl.cc b/source/blender/editors/render/render_opengl.cc
index 7bd9812a178..77ad23f1e3f 100644
--- a/source/blender/editors/render/render_opengl.cc
+++ b/source/blender/editors/render/render_opengl.cc
@@ -758,8 +758,7 @@ static bool screen_opengl_render_init(bContext *C, wmOperator *op)
   WM_jobs_kill_all_except(wm, CTX_wm_screen(C));
 
   /* create offscreen buffer */
-  sizex = (scene->r.size * scene->r.xsch) / 100;
-  sizey = (scene->r.size * scene->r.ysch) / 100;
+  BKE_render_resolution(&scene->r, false, &sizex, &sizey);
 
   /* corrects render size with actual size, not every card supports non-power-of-two dimensions */
   DRW_opengl_context_enable(); /* Off-screen creation needs to be done in DRW context. */
diff --git a/source/blender/editors/render/render_view.cc b/source/blender/editors/render/render_view.cc
index a7ff2aad05a..9a16c910205 100644
--- a/source/blender/editors/render/render_view.cc
+++ b/source/blender/editors/render/render_view.cc
@@ -19,6 +19,7 @@
 #include "BKE_image.h"
 #include "BKE_main.h"
 #include "BKE_report.h"
+#include "BKE_scene.h"
 #include "BKE_screen.h"
 
 #include "BLT_translation.h"
@@ -130,8 +131,11 @@ ScrArea *render_view_open(bContext *C, int mx, int my, ReportList *reports)
   }
 
   if (U.render_display_type == USER_RENDER_DISPLAY_WINDOW) {
-    int sizex = 30 * UI_DPI_FAC + (scene->r.xsch * scene->r.size) / 100;
-    int sizey = 60 * UI_DPI_FAC + (scene->r.ysch * scene->r.size) / 100;
+    int sizex, sizey;
+    BKE_render_resolution(&scene->r, false, &sizex, &sizey);
+
+    sizex += 30 * UI_DPI_FAC;
+    sizey += 60 * UI_DPI_FAC;
 
     /* arbitrary... miniature image window views don't make much sense */
     if (sizex < 320) {
diff --git a/source/blender/editors/screen/screen_context.c b/source/blender/editors/screen/screen_context.c
index 239113c28a4..0d6b6ee1d78 100644
--- a/source/blender/editors/screen/screen_context.c
+++ b/source/blender/editors/screen/screen_context.c
@@ -100,6 +100,7 @@ const char *screen_context_dir[] = {
     "active_gpencil_frame",
     "active_annotation_layer",
     "active_operator",
+    "active_action",
     "selected_visible_actions",
     "selected_editable_actions",
     "visible_fcurves",
@@ -969,6 +970,7 @@ static eContextResult screen_ctx_active_operator(const bContext *C, bContextData
 }
 static eContextResult screen_ctx_sel_actions_impl(const bContext *C,
                                                   bContextDataResult *result,
+                                                  bool active_only,
                                                   bool editable)
 {
   bAnimContext ac;
@@ -978,11 +980,17 @@ static eContextResult screen_ctx_sel_actions_impl(const bContext *C,
       SpaceAction *saction = (SpaceAction *)ac.sl;
 
       if (ELEM(saction->mode, SACTCONT_ACTION, SACTCONT_SHAPEKEY)) {
-        if (saction->action && !(editable && ID_IS_LINKED(saction->action))) {
-          CTX_data_id_list_add(result, &saction->action->id);
+        if (active_only) {
+          CTX_data_id_pointer_set(result, (ID *)saction->action);
+        }
+        else {
+          if (saction->action && !(editable && ID_IS_LINKED(saction->action))) {
+            CTX_data_id_list_add(result, &saction->action->id);
+          }
+
+          CTX_data_type_set(result, CTX_DATA_TYPE_COLLECTION);
         }
 
-        CTX_data_type_set(result, CTX_DATA_TYPE_COLLECTION);
         return CTX_RESULT_OK;
       }
     }
@@ -995,7 +1003,8 @@ static eContextResult screen_ctx_sel_actions_impl(const bContext *C,
 
     switch (ac.spacetype) {
       case SPACE_GRAPH:
-        filter |= ANIMFILTER_FCURVESONLY | ANIMFILTER_CURVE_VISIBLE | ANIMFILTER_SEL;
+        filter |= ANIMFILTER_FCURVESONLY | ANIMFILTER_CURVE_VISIBLE |
+                  (active_only ? ANIMFILTER_ACTIVE : ANIMFILTER_SEL);
         break;
 
       case SPACE_ACTION:
@@ -1006,7 +1015,7 @@ static eContextResult screen_ctx_sel_actions_impl(const bContext *C,
 
     ANIM_animdata_filter(&ac, &anim_data, filter, ac.data, ac.datatype);
 
-    GSet *seen_set = BLI_gset_ptr_new("seen actions");
+    GSet *seen_set = active_only ? NULL : BLI_gset_ptr_new("seen actions");
 
     LISTBASE_FOREACH (bAnimListElem *, ale, &anim_data) {
       /* In dopesheet check selection status of individual items, skipping
@@ -1019,36 +1028,48 @@ static eContextResult screen_ctx_sel_actions_impl(const bContext *C,
       bAction *action = ANIM_channel_action_get(ale);
 
       if (action) {
-        if (editable && ID_IS_LINKED(action)) {
-          continue;
+        if (active_only) {
+          CTX_data_id_pointer_set(result, (ID *)action);
+          break;
         }
+        else {
+          if (editable && ID_IS_LINKED(action)) {
+            continue;
+          }
 
-        /* Add the action to the output list if not already added. */
-        if (BLI_gset_add(seen_set, action)) {
-          CTX_data_id_list_add(result, &action->id);
+          /* Add the action to the output list if not already added. */
+          if (BLI_gset_add(seen_set, action)) {
+            CTX_data_id_list_add(result, &action->id);
+          }
         }
       }
     }
 
-    BLI_gset_free(seen_set, NULL);
-
     ANIM_animdata_freelist(&anim_data);
 
-    CTX_data_type_set(result, CTX_DATA_TYPE_COLLECTION);
+    if (!active_only) {
+      BLI_gset_free(seen_set, NULL);
+
+      CTX_data_type_set(result, CTX_DATA_TYPE_COLLECTION);
+    }
+
     return CTX_RESULT_OK;
   }
   return CTX_RESULT_NO_DATA;
 }
-
+static eContextResult screen_ctx_active_action(const bContext *C, bContextDataResult *result)
+{
+  return screen_ctx_sel_actions_impl(C, result, true, false);
+}
 static eContextResult screen_ctx_selected_visible_actions(const bContext *C,
                                                           bContextDataResult *result)
 {
-  return screen_ctx_sel_actions_impl(C, result, false);
+  return screen_ctx_sel_actions_impl(C, result, false, false);
 }
 static eContextResult screen_ctx_selected_editable_actions(const bContext *C,
                                                            bContextDataResult *result)
 {
-  return screen_ctx_sel_actions_impl(C, result, true);
+  return screen_ctx_sel_actions_impl(C, result, false, true);
 }
 static eContextResult screen_ctx_sel_edit_fcurves_(const bContext *C,
                                                    bContextDataResult *result,
@@ -1262,6 +1283,7 @@ static void ensure_ed_screen_context_functions(void)
   register_context_function("editable_gpencil_layers", screen_ctx_editable_gpencil_layers);
   register_context_function("editable_gpencil_strokes", screen_ctx_editable_gpencil_strokes);
   register_context_function("active_operator", screen_ctx_active_operator);
+  register_context_function("active_action", screen_ctx_active_action);
   register_context_function("selected_visible_actions", screen_ctx_selected_visible_actions);
   register_context_function("selected_editable_actions", screen_ctx_selected_editable_actions);
   register_context_function("editable_fcurves", screen_ctx_editable_fcurves);
diff --git a/source/blender/editors/screen/screen_ops.c b/source/blender/editors/screen/screen_ops.c
index c616ca2b5eb..3618b933443 100644
--- a/source/blender/editors/screen/screen_ops.c
+++ b/source/blender/editors/screen/screen_ops.c
@@ -4718,7 +4718,7 @@ static int screen_animation_step_invoke(bContext *C, wmOperator *UNUSED(op), con
 #endif
   }
 
-  /* since we follow drawflags, we can't send notifier but tag regions ourselves */
+  /* Since we follow draw-flags, we can't send notifier but tag regions ourselves. */
   if (depsgraph != NULL) {
     ED_update_for_newframe(bmain, depsgraph);
   }
diff --git a/source/blender/editors/screen/screen_user_menu.c b/source/blender/editors/screen/screen_user_menu.c
index 1156452310c..9d66debda6f 100644
--- a/source/blender/editors/screen/screen_user_menu.c
+++ b/source/blender/editors/screen/screen_user_menu.c
@@ -214,7 +214,14 @@ static void screen_user_menu_draw(const bContext *C, Menu *menu)
         wmOperatorType *ot = WM_operatortype_find(umi_op->op_idname, false);
         if (ot != NULL) {
           IDProperty *prop = umi_op->prop ? IDP_CopyProperty(umi_op->prop) : NULL;
-          uiItemFullO_ptr(menu->layout, ot, ui_name, ICON_NONE, prop, umi_op->opcontext, 0, NULL);
+          uiItemFullO_ptr(menu->layout,
+                          ot,
+                          CTX_IFACE_(ot->translation_context, ui_name),
+                          ICON_NONE,
+                          prop,
+                          umi_op->opcontext,
+                          0,
+                          NULL);
           is_empty = false;
         }
         else {
diff --git a/source/blender/editors/sculpt_paint/curves_sculpt_grow_shrink.cc b/source/blender/editors/sculpt_paint/curves_sculpt_grow_shrink.cc
index 709ecc79967..408139d6653 100644
--- a/source/blender/editors/sculpt_paint/curves_sculpt_grow_shrink.cc
+++ b/source/blender/editors/sculpt_paint/curves_sculpt_grow_shrink.cc
@@ -4,8 +4,7 @@
 
 #include "BLI_enumerable_thread_specific.hh"
 #include "BLI_float4x4.hh"
-#include "BLI_kdtree.h"
-#include "BLI_rand.hh"
+#include "BLI_length_parameterize.hh"
 #include "BLI_vector.hh"
 
 #include "PIL_time.h"
@@ -14,19 +13,13 @@
 
 #include "BKE_attribute_math.hh"
 #include "BKE_brush.h"
-#include "BKE_bvhutils.h"
 #include "BKE_context.h"
 #include "BKE_curves.hh"
-#include "BKE_mesh.h"
-#include "BKE_mesh_runtime.h"
 #include "BKE_paint.h"
-#include "BKE_spline.hh"
 
 #include "DNA_brush_enums.h"
 #include "DNA_brush_types.h"
 #include "DNA_curves_types.h"
-#include "DNA_mesh_types.h"
-#include "DNA_meshdata_types.h"
 #include "DNA_object_types.h"
 #include "DNA_screen_types.h"
 #include "DNA_space_types.h"
@@ -70,6 +63,24 @@ class ShrinkCurvesEffect : public CurvesEffect {
  private:
   const Brush &brush_;
 
+  /** Storage of per-curve parameterization data to avoid reallocation. */
+  struct ParameterizationBuffers {
+    Array<float3> old_positions;
+    Array<float> old_lengths;
+    Array<float> sample_lengths;
+    Array<int> indices;
+    Array<float> factors;
+
+    void reinitialize(const int points_num)
+    {
+      this->old_positions.reinitialize(points_num);
+      this->old_lengths.reinitialize(length_parameterize::segments_num(points_num, false));
+      this->sample_lengths.reinitialize(points_num);
+      this->indices.reinitialize(points_num);
+      this->factors.reinitialize(points_num);
+    }
+  };
+
  public:
   ShrinkCurvesEffect(const Brush &brush) : brush_(brush)
   {
@@ -81,46 +92,42 @@ class ShrinkCurvesEffect : public CurvesEffect {
   {
     MutableSpan<float3> positions_cu = curves.positions_for_write();
     threading::parallel_for(curve_indices.index_range(), 256, [&](const IndexRange range) {
+      ParameterizationBuffers data;
       for (const int influence_i : range) {
         const int curve_i = curve_indices[influence_i];
         const float move_distance_cu = move_distances_cu[influence_i];
-        const IndexRange curve_points = curves.points_for_curve(curve_i);
-        this->shrink_curve(positions_cu, curve_points, move_distance_cu);
+        const IndexRange points = curves.points_for_curve(curve_i);
+        this->shrink_curve(positions_cu.slice(points), move_distance_cu, data);
       }
     });
   }
 
+ private:
   void shrink_curve(MutableSpan<float3> positions,
-                    const IndexRange curve_points,
-                    const float shrink_length) const
+                    const float shrink_length,
+                    ParameterizationBuffers &data) const
   {
-    PolySpline spline;
-    spline.resize(curve_points.size());
-    MutableSpan<float3> spline_positions = spline.positions();
-    spline_positions.copy_from(positions.slice(curve_points));
-    spline.mark_cache_invalid();
+    namespace lp = length_parameterize;
+    data.reinitialize(positions.size());
+
+    /* Copy the old positions to facilitate mixing from neighbors for the resulting curve. */
+    data.old_positions.as_mutable_span().copy_from(positions);
+
+    lp::accumulate_lengths<float3>(data.old_positions, false, data.old_lengths);
+
     const float min_length = brush_.curves_sculpt_settings->minimum_length;
-    const float old_length = spline.length();
+    const float old_length = data.old_lengths.last();
     const float new_length = std::max(min_length, old_length - shrink_length);
     const float length_factor = std::clamp(new_length / old_length, 0.0f, 1.0f);
 
-    Vector<float> old_point_lengths;
-    old_point_lengths.append(0.0f);
-    for (const int i : spline_positions.index_range().drop_back(1)) {
-      const float3 &p1 = spline_positions[i];
-      const float3 &p2 = spline_positions[i + 1];
-      const float length = math::distance(p1, p2);
-      old_point_lengths.append(old_point_lengths.last() + length);
+    data.sample_lengths.first() = 0.0f;
+    for (const int i : data.old_lengths.index_range()) {
+      data.sample_lengths[i + 1] = data.old_lengths[i] * length_factor;
     }
 
-    for (const int i : spline_positions.index_range()) {
-      const float eval_length = old_point_lengths[i] * length_factor;
-      const Spline::LookupResult lookup = spline.lookup_evaluated_length(eval_length);
-      const float index_factor = lookup.evaluated_index + lookup.factor;
-      float3 p;
-      spline.sample_with_index_factors<float3>(spline_positions, {&index_factor, 1}, {&p, 1});
-      positions[curve_points[i]] = p;
-    }
+    lp::sample_at_lengths(data.old_lengths, data.sample_lengths, data.indices, data.factors);
+
+    lp::linear_interpolation<float3>(data.old_positions, data.indices, data.factors, positions);
   }
 };
 
diff --git a/source/blender/editors/sculpt_paint/curves_sculpt_ops.cc b/source/blender/editors/sculpt_paint/curves_sculpt_ops.cc
index 5c73c7a37d3..47e0fe3a61a 100644
--- a/source/blender/editors/sculpt_paint/curves_sculpt_ops.cc
+++ b/source/blender/editors/sculpt_paint/curves_sculpt_ops.cc
@@ -147,7 +147,10 @@ struct SculptCurvesBrushStrokeData {
   PaintStroke *stroke;
 };
 
-static bool stroke_get_location(bContext *C, float out[3], const float mouse[2])
+static bool stroke_get_location(bContext *C,
+                                float out[3],
+                                const float mouse[2],
+                                bool UNUSED(force_original))
 {
   out[0] = mouse[0];
   out[1] = mouse[1];
diff --git a/source/blender/editors/sculpt_paint/paint_intern.h b/source/blender/editors/sculpt_paint/paint_intern.h
index ea17114efa5..99c25953d50 100644
--- a/source/blender/editors/sculpt_paint/paint_intern.h
+++ b/source/blender/editors/sculpt_paint/paint_intern.h
@@ -46,7 +46,10 @@ typedef struct CoNo {
 
 /* paint_stroke.c */
 
-typedef bool (*StrokeGetLocation)(struct bContext *C, float location[3], const float mouse[2]);
+typedef bool (*StrokeGetLocation)(struct bContext *C,
+                                  float location[3],
+                                  const float mouse[2],
+                                  bool force_original);
 typedef bool (*StrokeTestStart)(struct bContext *C, struct wmOperator *op, const float mouse[2]);
 typedef void (*StrokeUpdateStep)(struct bContext *C,
                                  struct wmOperator *op,
@@ -370,10 +373,12 @@ void PAINT_OT_face_select_linked(struct wmOperatorType *ot);
 void PAINT_OT_face_select_linked_pick(struct wmOperatorType *ot);
 void PAINT_OT_face_select_all(struct wmOperatorType *ot);
 void PAINT_OT_face_select_hide(struct wmOperatorType *ot);
-void PAINT_OT_face_select_reveal(struct wmOperatorType *ot);
+
+void PAINT_OT_face_vert_reveal(struct wmOperatorType *ot);
 
 void PAINT_OT_vert_select_all(struct wmOperatorType *ot);
 void PAINT_OT_vert_select_ungrouped(struct wmOperatorType *ot);
+void PAINT_OT_vert_select_hide(struct wmOperatorType *ot);
 
 bool vert_paint_poll(struct bContext *C);
 bool mask_paint_poll(struct bContext *C);
diff --git a/source/blender/editors/sculpt_paint/paint_ops.c b/source/blender/editors/sculpt_paint/paint_ops.c
index ce6b397af15..994ae4011b4 100644
--- a/source/blender/editors/sculpt_paint/paint_ops.c
+++ b/source/blender/editors/sculpt_paint/paint_ops.c
@@ -1454,6 +1454,7 @@ void ED_operatortypes_paint(void)
   /* vertex selection */
   WM_operatortype_append(PAINT_OT_vert_select_all);
   WM_operatortype_append(PAINT_OT_vert_select_ungrouped);
+  WM_operatortype_append(PAINT_OT_vert_select_hide);
 
   /* vertex */
   WM_operatortype_append(PAINT_OT_vertex_paint_toggle);
@@ -1472,7 +1473,8 @@ void ED_operatortypes_paint(void)
   WM_operatortype_append(PAINT_OT_face_select_linked_pick);
   WM_operatortype_append(PAINT_OT_face_select_all);
   WM_operatortype_append(PAINT_OT_face_select_hide);
-  WM_operatortype_append(PAINT_OT_face_select_reveal);
+
+  WM_operatortype_append(PAINT_OT_face_vert_reveal);
 
   /* partial visibility */
   WM_operatortype_append(PAINT_OT_hide_show);
diff --git a/source/blender/editors/sculpt_paint/paint_stroke.c b/source/blender/editors/sculpt_paint/paint_stroke.c
index 1ee26935dc9..88e7a786a47 100644
--- a/source/blender/editors/sculpt_paint/paint_stroke.c
+++ b/source/blender/editors/sculpt_paint/paint_stroke.c
@@ -79,6 +79,8 @@ typedef struct PaintStroke {
 
   float last_mouse_position[2];
   float last_world_space_position[3];
+  float last_scene_spacing_delta[3];
+
   bool stroke_over_mesh;
   /* space distance covered so far */
   float stroke_distance;
@@ -120,6 +122,8 @@ typedef struct PaintStroke {
   StrokeUpdateStep update_step;
   StrokeRedraw redraw;
   StrokeDone done;
+
+  bool original; /* Raycast original mesh at start of stroke */
 } PaintStroke;
 
 /*** Cursors ***/
@@ -243,6 +247,11 @@ static bool paint_stroke_use_scene_spacing(Brush *brush, ePaintMode mode)
   return false;
 }
 
+static bool paint_tool_raycast_original(Brush *brush, ePaintMode UNUSED(mode))
+{
+  return brush->flag & BRUSH_ANCHORED;
+}
+
 static bool paint_tool_require_inbetween_mouse_events(Brush *brush, ePaintMode mode)
 {
   if (brush->flag & BRUSH_ANCHORED) {
@@ -392,7 +401,7 @@ static bool paint_brush_update(bContext *C,
       halfway[1] = dy * 0.5f + stroke->initial_mouse[1];
 
       if (stroke->get_location) {
-        if (stroke->get_location(C, r_location, halfway)) {
+        if (stroke->get_location(C, r_location, halfway, stroke->original)) {
           hit = true;
           location_sampled = true;
           location_success = true;
@@ -466,7 +475,7 @@ static bool paint_brush_update(bContext *C,
 
   if (!location_sampled) {
     if (stroke->get_location) {
-      if (stroke->get_location(C, r_location, mouse)) {
+      if (stroke->get_location(C, r_location, mouse, stroke->original)) {
         location_success = true;
         *r_location_is_set = true;
       }
@@ -550,8 +559,16 @@ static void paint_brush_stroke_add_step(
   stroke->last_pressure = pressure;
 
   if (paint_stroke_use_scene_spacing(brush, mode)) {
-    SCULPT_stroke_get_location(C, stroke->last_world_space_position, stroke->last_mouse_position);
-    mul_m4_v3(stroke->vc.obact->obmat, stroke->last_world_space_position);
+    float world_space_position[3];
+
+    if (SCULPT_stroke_get_location(
+            C, world_space_position, stroke->last_mouse_position, stroke->original)) {
+      copy_v3_v3(stroke->last_world_space_position, world_space_position);
+      mul_m4_v3(stroke->vc.obact->obmat, stroke->last_world_space_position);
+    }
+    else {
+      add_v3_v3(stroke->last_world_space_position, stroke->last_scene_spacing_delta);
+    }
   }
 
   if (paint_stroke_use_jitter(mode, brush, stroke->stroke_mode == BRUSH_STROKE_INVERT)) {
@@ -698,7 +715,7 @@ static float paint_space_stroke_spacing(bContext *C,
   spacing *= stroke->zoom_2d;
 
   if (paint_stroke_use_scene_spacing(brush, mode)) {
-    return max_ff(0.001f, size_clamp * spacing / 50.0f);
+    return size_clamp * spacing / 50.0f;
   }
   return max_ff(stroke->zoom_2d, size_clamp * spacing / 50.0f);
 }
@@ -807,7 +824,7 @@ static int paint_space_stroke(bContext *C,
 
   if (use_scene_spacing) {
     float world_space_position[3];
-    bool hit = SCULPT_stroke_get_location(C, world_space_position, final_mouse);
+    bool hit = SCULPT_stroke_get_location(C, world_space_position, final_mouse, stroke->original);
     mul_m4_v3(stroke->vc.obact->obmat, world_space_position);
     if (hit && stroke->stroke_over_mesh) {
       sub_v3_v3v3(d_world_space_position, world_space_position, stroke->last_world_space_position);
@@ -838,6 +855,8 @@ static int paint_space_stroke(bContext *C,
                     stroke->last_world_space_position,
                     final_world_space_position);
         ED_view3d_project_v2(region, final_world_space_position, mouse);
+
+        mul_v3_v3fl(stroke->last_scene_spacing_delta, d_world_space_position, spacing);
       }
       else {
         mouse[0] = stroke->last_mouse_position[0] + dmouse[0] * spacing;
@@ -896,6 +915,8 @@ PaintStroke *paint_stroke_new(bContext *C,
   stroke->ups = ups;
   stroke->stroke_mode = RNA_enum_get(op->ptr, "mode");
 
+  stroke->original = paint_tool_raycast_original(br, BKE_paintmode_get_active_from_context(C));
+
   get_imapaint_zoom(C, &zoomx, &zoomy);
   stroke->zoom_2d = max_ff(zoomx, zoomy);
 
@@ -1191,8 +1212,10 @@ static void paint_line_strokes_spacing(bContext *C,
   copy_v2_v2(stroke->last_mouse_position, old_pos);
 
   if (use_scene_spacing) {
-    bool hit_old = SCULPT_stroke_get_location(C, world_space_position_old, old_pos);
-    bool hit_new = SCULPT_stroke_get_location(C, world_space_position_new, new_pos);
+    bool hit_old = SCULPT_stroke_get_location(
+        C, world_space_position_old, old_pos, stroke->original);
+    bool hit_new = SCULPT_stroke_get_location(
+        C, world_space_position_new, new_pos, stroke->original);
     mul_m4_v3(stroke->vc.obact->obmat, world_space_position_old);
     mul_m4_v3(stroke->vc.obact->obmat, world_space_position_new);
     if (hit_old && hit_new && stroke->stroke_over_mesh) {
@@ -1336,7 +1359,7 @@ static bool paint_stroke_curve_end(bContext *C, wmOperator *op, PaintStroke *str
 
           if (paint_stroke_use_scene_spacing(br, BKE_paintmode_get_active_from_context(C))) {
             stroke->stroke_over_mesh = SCULPT_stroke_get_location(
-                C, stroke->last_world_space_position, data + 2 * j);
+                C, stroke->last_world_space_position, data + 2 * j, stroke->original);
             mul_m4_v3(stroke->vc.obact->obmat, stroke->last_world_space_position);
           }
 
@@ -1468,7 +1491,7 @@ int paint_stroke_modal(bContext *C, wmOperator *op, const wmEvent *event, PaintS
     copy_v2_v2(stroke->last_mouse_position, sample_average.mouse);
     if (paint_stroke_use_scene_spacing(br, mode)) {
       stroke->stroke_over_mesh = SCULPT_stroke_get_location(
-          C, stroke->last_world_space_position, sample_average.mouse);
+          C, stroke->last_world_space_position, sample_average.mouse, stroke->original);
       mul_m4_v3(stroke->vc.obact->obmat, stroke->last_world_space_position);
     }
     stroke->stroke_started = stroke->test_start(C, op, sample_average.mouse);
diff --git a/source/blender/editors/sculpt_paint/paint_utils.c b/source/blender/editors/sculpt_paint/paint_utils.c
index 3f26f590b70..1f272882100 100644
--- a/source/blender/editors/sculpt_paint/paint_utils.c
+++ b/source/blender/editors/sculpt_paint/paint_utils.c
@@ -749,25 +749,68 @@ void PAINT_OT_face_select_hide(wmOperatorType *ot)
       ot->srna, "unselected", 0, "Unselected", "Hide unselected rather than selected objects");
 }
 
-static int face_select_reveal_exec(bContext *C, wmOperator *op)
+static int vert_select_hide_exec(bContext *C, wmOperator *op)
+{
+  const bool unselected = RNA_boolean_get(op->ptr, "unselected");
+  Object *ob = CTX_data_active_object(C);
+  paintvert_hide(C, ob, unselected);
+  ED_region_tag_redraw(CTX_wm_region(C));
+  return OPERATOR_FINISHED;
+}
+
+void PAINT_OT_vert_select_hide(wmOperatorType *ot)
+{
+  ot->name = "Vertex Select Hide";
+  ot->description = "Hide selected vertices";
+  ot->idname = "PAINT_OT_vert_select_hide";
+
+  ot->exec = vert_select_hide_exec;
+  ot->poll = vert_paint_poll;
+
+  ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+  RNA_def_boolean(
+      ot->srna, "unselected", 0, "Unselected", "Hide unselected rather than selected vertices");
+}
+
+static int face_vert_reveal_exec(bContext *C, wmOperator *op)
 {
   const bool select = RNA_boolean_get(op->ptr, "select");
   Object *ob = CTX_data_active_object(C);
-  paintface_reveal(C, ob, select);
+
+  if (BKE_paint_select_vert_test(ob)) {
+    paintvert_reveal(C, ob, select);
+  }
+  else {
+    paintface_reveal(C, ob, select);
+  }
+
   ED_region_tag_redraw(CTX_wm_region(C));
   return OPERATOR_FINISHED;
 }
 
-void PAINT_OT_face_select_reveal(wmOperatorType *ot)
+static bool face_vert_reveal_poll(bContext *C)
 {
-  ot->name = "Face Select Reveal";
-  ot->description = "Reveal hidden faces";
-  ot->idname = "PAINT_OT_face_select_reveal";
+  Object *ob = CTX_data_active_object(C);
 
-  ot->exec = face_select_reveal_exec;
-  ot->poll = facemask_paint_poll;
+  /* Allow using this operator when no selection is enabled but hiding is applied. */
+  return BKE_paint_select_elem_test(ob) || BKE_paint_always_hide_test(ob);
+}
+
+void PAINT_OT_face_vert_reveal(wmOperatorType *ot)
+{
+  ot->name = "Reveal Faces/Vertices";
+  ot->description = "Reveal hidden faces and vertices";
+  ot->idname = "PAINT_OT_face_vert_reveal";
+
+  ot->exec = face_vert_reveal_exec;
+  ot->poll = face_vert_reveal_poll;
 
   ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 
-  RNA_def_boolean(ot->srna, "select", true, "Select", "");
+  RNA_def_boolean(ot->srna,
+                  "select",
+                  true,
+                  "Select",
+                  "Specifies whether the newly revealed geometry should be selected");
 }
diff --git a/source/blender/editors/sculpt_paint/sculpt.c b/source/blender/editors/sculpt_paint/sculpt.c
index 906c4fd35fe..2951706ebd8 100644
--- a/source/blender/editors/sculpt_paint/sculpt.c
+++ b/source/blender/editors/sculpt_paint/sculpt.c
@@ -4952,7 +4952,10 @@ bool SCULPT_cursor_geometry_info_update(bContext *C,
   return true;
 }
 
-bool SCULPT_stroke_get_location(bContext *C, float out[3], const float mval[2])
+bool SCULPT_stroke_get_location(bContext *C,
+                                float out[3],
+                                const float mval[2],
+                                bool force_original)
 {
   Depsgraph *depsgraph = CTX_data_depsgraph_pointer(C);
   Object *ob;
@@ -4968,7 +4971,7 @@ bool SCULPT_stroke_get_location(bContext *C, float out[3], const float mval[2])
 
   ss = ob->sculpt;
   cache = ss->cache;
-  original = (cache) ? cache->original : false;
+  original = force_original || ((cache) ? cache->original : false);
 
   const Brush *brush = BKE_paint_brush(BKE_paint_get_active_from_context(C));
 
@@ -5284,7 +5287,7 @@ void SCULPT_flush_update_done(const bContext *C, Object *ob, SculptUpdateType up
 static bool over_mesh(bContext *C, struct wmOperator *UNUSED(op), const float mval[2])
 {
   float co_dummy[3];
-  return SCULPT_stroke_get_location(C, co_dummy, mval);
+  return SCULPT_stroke_get_location(C, co_dummy, mval, false);
 }
 
 bool SCULPT_handles_colors_report(SculptSession *ss, ReportList *reports)
@@ -5499,10 +5502,23 @@ static int sculpt_brush_stroke_invoke(bContext *C, wmOperator *op, const wmEvent
   struct PaintStroke *stroke;
   int ignore_background_click;
   int retval;
+  Object *ob = CTX_data_active_object(C);
+
+  /* Test that ob is visible; otherwise we won't be able to get evaluated data
+   * from the depsgraph. We do this here instead of SCULPT_mode_poll
+   * to avoid falling through to the translate operator in the
+   * global view3d keymap.
+   *
+   * Note: BKE_object_is_visible_in_viewport is not working here (it returns false
+   * if the object is in local view); instead, test for OB_HIDE_VIEWPORT directly.
+   */
+
+  if (ob->visibility_flag & OB_HIDE_VIEWPORT) {
+    return OPERATOR_CANCELLED;
+  }
 
   sculpt_brush_stroke_init(C, op);
 
-  Object *ob = CTX_data_active_object(C);
   Sculpt *sd = CTX_data_tool_settings(C)->sculpt;
   Brush *brush = BKE_paint_brush(&sd->paint);
 
diff --git a/source/blender/editors/sculpt_paint/sculpt_filter_color.c b/source/blender/editors/sculpt_paint/sculpt_filter_color.c
index a5d9f5306e2..a9186010a9f 100644
--- a/source/blender/editors/sculpt_paint/sculpt_filter_color.c
+++ b/source/blender/editors/sculpt_paint/sculpt_filter_color.c
@@ -93,7 +93,7 @@ static void color_filter_task_cb(void *__restrict userdata,
   const int mode = data->filter_type;
 
   SculptOrigVertData orig_data;
-  SCULPT_orig_vert_data_init(&orig_data, data->ob, data->nodes[n], SCULPT_UNDO_COORDS);
+  SCULPT_orig_vert_data_init(&orig_data, data->ob, data->nodes[n], SCULPT_UNDO_COLOR);
 
   PBVHVertexIter vd;
   BKE_pbvh_vertex_iter_begin (ss->pbvh, data->nodes[n], vd, PBVH_ITER_UNIQUE) {
diff --git a/source/blender/editors/sculpt_paint/sculpt_intern.h b/source/blender/editors/sculpt_paint/sculpt_intern.h
index 8485c7fcbf9..83526006d7d 100644
--- a/source/blender/editors/sculpt_paint/sculpt_intern.h
+++ b/source/blender/editors/sculpt_paint/sculpt_intern.h
@@ -845,7 +845,10 @@ void SCULPT_tag_update_overlays(bContext *C);
  * (This allows us to ignore the GL depth buffer)
  * Returns 0 if the ray doesn't hit the mesh, non-zero otherwise.
  */
-bool SCULPT_stroke_get_location(struct bContext *C, float out[3], const float mouse[2]);
+bool SCULPT_stroke_get_location(struct bContext *C,
+                                float out[3],
+                                const float mouse[2],
+                                bool force_original);
 /**
  * Gets the normal, location and active vertex location of the geometry under the cursor. This also
  * updates the active vertex and cursor related data of the SculptSession using the mouse position
diff --git a/source/blender/editors/sculpt_paint/sculpt_transform.c b/source/blender/editors/sculpt_paint/sculpt_transform.c
index 365000ab163..8856e3bf3db 100644
--- a/source/blender/editors/sculpt_paint/sculpt_transform.c
+++ b/source/blender/editors/sculpt_paint/sculpt_transform.c
@@ -426,7 +426,7 @@ static int sculpt_set_pivot_position_exec(bContext *C, wmOperator *op)
         RNA_float_get(op->ptr, "mouse_x"),
         RNA_float_get(op->ptr, "mouse_y"),
     };
-    if (SCULPT_stroke_get_location(C, stroke_location, mval)) {
+    if (SCULPT_stroke_get_location(C, stroke_location, mval, false)) {
       copy_v3_v3(ss->pivot_pos, stroke_location);
     }
   }
diff --git a/source/blender/editors/sculpt_paint/sculpt_uv.c b/source/blender/editors/sculpt_paint/sculpt_uv.c
index 8e1f4f4d495..5c2dff7b252 100644
--- a/source/blender/editors/sculpt_paint/sculpt_uv.c
+++ b/source/blender/editors/sculpt_paint/sculpt_uv.c
@@ -500,20 +500,10 @@ static UvSculptData *uv_sculpt_stroke_init(bContext *C, wmOperator *op, const wm
 
     if (do_island_optimization) {
       /* We will need island information */
-      if (ts->uv_flag & UV_SYNC_SELECTION) {
-        data->elementMap = BM_uv_element_map_create(bm, scene, false, false, true, true);
-      }
-      else {
-        data->elementMap = BM_uv_element_map_create(bm, scene, true, false, true, true);
-      }
+      data->elementMap = BM_uv_element_map_create(bm, scene, false, true, true);
     }
     else {
-      if (ts->uv_flag & UV_SYNC_SELECTION) {
-        data->elementMap = BM_uv_element_map_create(bm, scene, false, false, true, false);
-      }
-      else {
-        data->elementMap = BM_uv_element_map_create(bm, scene, true, false, true, false);
-      }
+      data->elementMap = BM_uv_element_map_create(bm, scene, false, true, false);
     }
 
     if (!data->elementMap) {
diff --git a/source/blender/editors/sound/sound_ops.c b/source/blender/editors/sound/sound_ops.c
index 2a8a2be8b65..08b795db0c3 100644
--- a/source/blender/editors/sound/sound_ops.c
+++ b/source/blender/editors/sound/sound_ops.c
@@ -340,7 +340,8 @@ static int sound_mixdown_exec(bContext *C, wmOperator *op)
   AUD_DeviceSpecs specs;
   AUD_Container container;
   AUD_Codec codec;
-  const char *result;
+  int result;
+  char error_message[1024] = {'\0'};
 
   sound_bake_animation_exec(C, op);
 
@@ -372,7 +373,9 @@ static int sound_mixdown_exec(bContext *C, wmOperator *op)
                                      codec,
                                      bitrate,
                                      NULL,
-                                     NULL);
+                                     NULL,
+                                     error_message,
+                                     sizeof(error_message));
   }
   else {
     result = AUD_mixdown(scene_eval->sound_scene,
@@ -385,13 +388,15 @@ static int sound_mixdown_exec(bContext *C, wmOperator *op)
                          codec,
                          bitrate,
                          NULL,
-                         NULL);
+                         NULL,
+                         error_message,
+                         sizeof(error_message));
   }
 
   BKE_sound_reset_scene_specs(scene_eval);
 
-  if (result) {
-    BKE_report(op->reports, RPT_ERROR, result);
+  if (!result) {
+    BKE_report(op->reports, RPT_ERROR, error_message);
     return OPERATOR_CANCELLED;
   }
 #else  /* WITH_AUDASPACE */
diff --git a/source/blender/editors/space_action/action_edit.c b/source/blender/editors/space_action/action_edit.c
index e97b666810c..23c92cbdaa0 100644
--- a/source/blender/editors/space_action/action_edit.c
+++ b/source/blender/editors/space_action/action_edit.c
@@ -1006,7 +1006,7 @@ static bool delete_action_keys(bAnimContext *ac)
       AnimData *adt = ale->adt;
 
       /* delete selected keyframes only */
-      changed = delete_fcurve_keys(fcu);
+      changed = BKE_fcurve_delete_keys_selected(fcu);
 
       /* Only delete curve too if it won't be doing anything anymore */
       if (BKE_fcurve_is_empty(fcu)) {
@@ -1473,7 +1473,7 @@ static void sethandles_action_keys(bAnimContext *ac, short mode)
     /* any selected keyframes for editing? */
     if (ANIM_fcurve_keyframes_loop(NULL, fcu, NULL, sel_cb, NULL)) {
       /* change type of selected handles */
-      ANIM_fcurve_keyframes_loop(NULL, fcu, NULL, edit_cb, calchandles_fcurve);
+      ANIM_fcurve_keyframes_loop(NULL, fcu, NULL, edit_cb, BKE_fcurve_handles_recalc);
 
       ale->update |= ANIM_UPDATE_DEFAULT;
     }
@@ -1790,11 +1790,11 @@ static void snap_action_keys(bAnimContext *ac, short mode)
     }
     else if (adt) {
       ANIM_nla_mapping_apply_fcurve(adt, ale->key_data, 0, 0);
-      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, calchandles_fcurve);
+      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, BKE_fcurve_handles_recalc);
       ANIM_nla_mapping_apply_fcurve(adt, ale->key_data, 1, 0);
     }
     else {
-      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, calchandles_fcurve);
+      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, BKE_fcurve_handles_recalc);
     }
 
     ale->update |= ANIM_UPDATE_DEFAULT;
@@ -1914,11 +1914,11 @@ static void mirror_action_keys(bAnimContext *ac, short mode)
     }
     else if (adt) {
       ANIM_nla_mapping_apply_fcurve(adt, ale->key_data, 0, 0);
-      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, calchandles_fcurve);
+      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, BKE_fcurve_handles_recalc);
       ANIM_nla_mapping_apply_fcurve(adt, ale->key_data, 1, 0);
     }
     else {
-      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, calchandles_fcurve);
+      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, BKE_fcurve_handles_recalc);
     }
 
     ale->update |= ANIM_UPDATE_DEFAULT;
diff --git a/source/blender/editors/space_api/spacetypes.c b/source/blender/editors/space_api/spacetypes.c
index d53fe2efb03..3d964a95bc0 100644
--- a/source/blender/editors/space_api/spacetypes.c
+++ b/source/blender/editors/space_api/spacetypes.c
@@ -163,6 +163,7 @@ void ED_spacemacros_init(void)
   ED_operatormacros_sequencer();
   ED_operatormacros_paint();
   ED_operatormacros_gpencil();
+  ED_operatormacros_nla();
 
   /* Register dropboxes (can use macros). */
   ED_dropboxes_ui();
diff --git a/source/blender/editors/space_buttons/CMakeLists.txt b/source/blender/editors/space_buttons/CMakeLists.txt
index e2f1df74446..7d4f38b1841 100644
--- a/source/blender/editors/space_buttons/CMakeLists.txt
+++ b/source/blender/editors/space_buttons/CMakeLists.txt
@@ -35,7 +35,6 @@ endif()
 if(WITH_EXPERIMENTAL_FEATURES)
   add_definitions(-DWITH_SIMULATION_DATABLOCK)
   add_definitions(-DWITH_POINT_CLOUD)
-  add_definitions(-DWITH_NEW_CURVES_TYPE)
 endif()
 
 blender_add_lib(bf_editor_space_buttons "${SRC}" "${INC}" "${INC_SYS}" "${LIB}")
diff --git a/source/blender/editors/space_buttons/buttons_context.c b/source/blender/editors/space_buttons/buttons_context.c
index 5780b0c9df7..c3479409f0d 100644
--- a/source/blender/editors/space_buttons/buttons_context.c
+++ b/source/blender/editors/space_buttons/buttons_context.c
@@ -258,11 +258,9 @@ static bool buttons_context_path_data(ButsContextPath *path, int type)
   if (RNA_struct_is_a(ptr->type, &RNA_GreasePencil) && (ELEM(type, -1, OB_GPENCIL))) {
     return true;
   }
-#ifdef WITH_NEW_CURVES_TYPE
   if (RNA_struct_is_a(ptr->type, &RNA_Curves) && (ELEM(type, -1, OB_CURVES))) {
     return true;
   }
-#endif
 #ifdef WITH_POINT_CLOUD
   if (RNA_struct_is_a(ptr->type, &RNA_PointCloud) && (ELEM(type, -1, OB_POINTCLOUD))) {
     return true;
@@ -830,9 +828,7 @@ const char *buttons_context_dir[] = {
     "line_style",
     "collection",
     "gpencil",
-#ifdef WITH_NEW_CURVES_TYPE
     "curves",
-#endif
 #ifdef WITH_POINT_CLOUD
     "pointcloud",
 #endif
@@ -926,12 +922,10 @@ int /*eContextResult*/ buttons_context(const bContext *C,
     set_pointer_type(path, result, &RNA_LightProbe);
     return CTX_RESULT_OK;
   }
-#ifdef WITH_NEW_CURVES_TYPE
   if (CTX_data_equals(member, "curves")) {
     set_pointer_type(path, result, &RNA_Curves);
     return CTX_RESULT_OK;
   }
-#endif
 #ifdef WITH_POINT_CLOUD
   if (CTX_data_equals(member, "pointcloud")) {
     set_pointer_type(path, result, &RNA_PointCloud);
diff --git a/source/blender/editors/space_console/console_ops.c b/source/blender/editors/space_console/console_ops.c
index 17fbef23eac..ef22b1b9f0b 100644
--- a/source/blender/editors/space_console/console_ops.c
+++ b/source/blender/editors/space_console/console_ops.c
@@ -413,16 +413,8 @@ static int console_insert_invoke(bContext *C, wmOperator *op, const wmEvent *eve
     }
 
     char str[BLI_UTF8_MAX + 1];
-    size_t len;
-
-    if (event->utf8_buf[0]) {
-      len = BLI_str_utf8_size_safe(event->utf8_buf);
-      memcpy(str, event->utf8_buf, len);
-    }
-    else {
-      /* in theory, ghost can set value to extended ascii here */
-      len = BLI_str_utf8_from_unicode(event->ascii, str, sizeof(str) - 1);
-    }
+    const size_t len = BLI_str_utf8_size_safe(event->utf8_buf);
+    memcpy(str, event->utf8_buf, len);
     str[len] = '\0';
     RNA_string_set(op->ptr, "text", str);
   }
diff --git a/source/blender/editors/space_file/asset_catalog_tree_view.cc b/source/blender/editors/space_file/asset_catalog_tree_view.cc
index 87595ecdb88..1829f19bfd6 100644
--- a/source/blender/editors/space_file/asset_catalog_tree_view.cc
+++ b/source/blender/editors/space_file/asset_catalog_tree_view.cc
@@ -86,12 +86,12 @@ class AssetCatalogTreeViewItem : public ui::BasicTreeViewItem {
   bool rename(StringRefNull new_name) override;
 
   /** Add drag support for catalog items. */
-  std::unique_ptr<ui::AbstractTreeViewItemDragController> create_drag_controller() const override;
+  std::unique_ptr<ui::AbstractViewItemDragController> create_drag_controller() const override;
   /** Add dropping support for catalog items. */
-  std::unique_ptr<ui::AbstractTreeViewItemDropController> create_drop_controller() const override;
+  std::unique_ptr<ui::AbstractViewItemDropController> create_drop_controller() const override;
 };
 
-class AssetCatalogDragController : public ui::AbstractTreeViewItemDragController {
+class AssetCatalogDragController : public ui::AbstractViewItemDragController {
   AssetCatalogTreeItem &catalog_item_;
 
  public:
@@ -103,7 +103,7 @@ class AssetCatalogDragController : public ui::AbstractTreeViewItemDragController
   void on_drag_start() override;
 };
 
-class AssetCatalogDropController : public ui::AbstractTreeViewItemDropController {
+class AssetCatalogDropController : public ui::AbstractViewItemDropController {
   AssetCatalogTreeItem &catalog_item_;
 
  public:
@@ -142,7 +142,7 @@ class AssetCatalogTreeViewAllItem : public ui::BasicTreeViewItem {
 
   void build_row(uiLayout &row) override;
 
-  struct DropController : public ui::AbstractTreeViewItemDropController {
+  struct DropController : public ui::AbstractViewItemDropController {
     DropController(AssetCatalogTreeView &tree_view);
 
     bool can_drop(const wmDrag &drag, const char **r_disabled_hint) const override;
@@ -150,13 +150,13 @@ class AssetCatalogTreeViewAllItem : public ui::BasicTreeViewItem {
     bool on_drop(struct bContext *C, const wmDrag &drag) override;
   };
 
-  std::unique_ptr<ui::AbstractTreeViewItemDropController> create_drop_controller() const override;
+  std::unique_ptr<ui::AbstractViewItemDropController> create_drop_controller() const override;
 };
 
 class AssetCatalogTreeViewUnassignedItem : public ui::BasicTreeViewItem {
   using BasicTreeViewItem::BasicTreeViewItem;
 
-  struct DropController : public ui::AbstractTreeViewItemDropController {
+  struct DropController : public ui::AbstractViewItemDropController {
     DropController(AssetCatalogTreeView &tree_view);
 
     bool can_drop(const wmDrag &drag, const char **r_disabled_hint) const override;
@@ -164,7 +164,7 @@ class AssetCatalogTreeViewUnassignedItem : public ui::BasicTreeViewItem {
     bool on_drop(struct bContext *C, const wmDrag &drag) override;
   };
 
-  std::unique_ptr<ui::AbstractTreeViewItemDropController> create_drop_controller() const override;
+  std::unique_ptr<ui::AbstractViewItemDropController> create_drop_controller() const override;
 };
 
 /* ---------------------------------------------------------------------- */
@@ -272,11 +272,11 @@ void AssetCatalogTreeViewItem::build_row(uiLayout &row)
     return;
   }
 
-  uiButTreeRow *tree_row_but = tree_row_button();
+  uiButViewItem *view_item_but = view_item_button();
   PointerRNA *props;
 
   props = UI_but_extra_operator_icon_add(
-      (uiBut *)tree_row_but, "ASSET_OT_catalog_new", WM_OP_INVOKE_DEFAULT, ICON_ADD);
+      (uiBut *)view_item_but, "ASSET_OT_catalog_new", WM_OP_INVOKE_DEFAULT, ICON_ADD);
   RNA_string_set(props, "parent_path", catalog_item_.catalog_path().c_str());
 }
 
@@ -305,7 +305,7 @@ void AssetCatalogTreeViewItem::build_context_menu(bContext &C, uiLayout &column)
               0,
               &props);
   RNA_string_set(&props, "catalog_id", catalog_id_str_buffer);
-  uiItemO(&column, "Rename", ICON_NONE, "UI_OT_tree_view_item_rename");
+  uiItemO(&column, "Rename", ICON_NONE, "UI_OT_view_item_rename");
 
   /* Doesn't actually exist right now, but could be defined in Python. Reason that this isn't done
    * in Python yet is that catalogs are not exposed in BPY, and we'd somehow pass the clicked on
@@ -333,14 +333,14 @@ bool AssetCatalogTreeViewItem::rename(StringRefNull new_name)
   return true;
 }
 
-std::unique_ptr<ui::AbstractTreeViewItemDropController> AssetCatalogTreeViewItem::
+std::unique_ptr<ui::AbstractViewItemDropController> AssetCatalogTreeViewItem::
     create_drop_controller() const
 {
   return std::make_unique<AssetCatalogDropController>(
       static_cast<AssetCatalogTreeView &>(get_tree_view()), catalog_item_);
 }
 
-std::unique_ptr<ui::AbstractTreeViewItemDragController> AssetCatalogTreeViewItem::
+std::unique_ptr<ui::AbstractViewItemDragController> AssetCatalogTreeViewItem::
     create_drag_controller() const
 {
   return std::make_unique<AssetCatalogDragController>(
@@ -351,7 +351,7 @@ std::unique_ptr<ui::AbstractTreeViewItemDragController> AssetCatalogTreeViewItem
 
 AssetCatalogDropController::AssetCatalogDropController(AssetCatalogTreeView &tree_view,
                                                        AssetCatalogTreeItem &catalog_item)
-    : ui::AbstractTreeViewItemDropController(tree_view), catalog_item_(catalog_item)
+    : ui::AbstractViewItemDropController(tree_view), catalog_item_(catalog_item)
 {
 }
 
@@ -422,10 +422,10 @@ bool AssetCatalogDropController::on_drop(struct bContext *C, const wmDrag &drag)
 {
   if (drag.type == WM_DRAG_ASSET_CATALOG) {
     return drop_asset_catalog_into_catalog(
-        drag, tree_view<AssetCatalogTreeView>(), catalog_item_.get_catalog_id());
+        drag, get_view<AssetCatalogTreeView>(), catalog_item_.get_catalog_id());
   }
   return drop_assets_into_catalog(C,
-                                  tree_view<AssetCatalogTreeView>(),
+                                  get_view<AssetCatalogTreeView>(),
                                   drag,
                                   catalog_item_.get_catalog_id(),
                                   catalog_item_.get_simple_name());
@@ -512,14 +512,14 @@ bool AssetCatalogDropController::has_droppable_asset(const wmDrag &drag,
 
 ::AssetLibrary &AssetCatalogDropController::get_asset_library() const
 {
-  return *tree_view<AssetCatalogTreeView>().asset_library_;
+  return *get_view<AssetCatalogTreeView>().asset_library_;
 }
 
 /* ---------------------------------------------------------------------- */
 
 AssetCatalogDragController::AssetCatalogDragController(AssetCatalogTreeView &tree_view,
                                                        AssetCatalogTreeItem &catalog_item)
-    : ui::AbstractTreeViewItemDragController(tree_view), catalog_item_(catalog_item)
+    : ui::AbstractViewItemDragController(tree_view), catalog_item_(catalog_item)
 {
 }
 
@@ -538,7 +538,7 @@ void *AssetCatalogDragController::create_drag_data() const
 
 void AssetCatalogDragController::on_drag_start()
 {
-  AssetCatalogTreeView &tree_view_ = tree_view<AssetCatalogTreeView>();
+  AssetCatalogTreeView &tree_view_ = get_view<AssetCatalogTreeView>();
   tree_view_.activate_catalog_by_id(catalog_item_.get_catalog_id());
 }
 
@@ -551,15 +551,15 @@ void AssetCatalogTreeViewAllItem::build_row(uiLayout &row)
   PointerRNA *props;
 
   UI_but_extra_operator_icon_add(
-      (uiBut *)tree_row_button(), "ASSET_OT_catalogs_save", WM_OP_INVOKE_DEFAULT, ICON_FILE_TICK);
+      (uiBut *)view_item_button(), "ASSET_OT_catalogs_save", WM_OP_INVOKE_DEFAULT, ICON_FILE_TICK);
 
   props = UI_but_extra_operator_icon_add(
-      (uiBut *)tree_row_button(), "ASSET_OT_catalog_new", WM_OP_INVOKE_DEFAULT, ICON_ADD);
+      (uiBut *)view_item_button(), "ASSET_OT_catalog_new", WM_OP_INVOKE_DEFAULT, ICON_ADD);
   /* No parent path to use the root level. */
   RNA_string_set(props, "parent_path", nullptr);
 }
 
-std::unique_ptr<ui::AbstractTreeViewItemDropController> AssetCatalogTreeViewAllItem::
+std::unique_ptr<ui::AbstractViewItemDropController> AssetCatalogTreeViewAllItem::
     create_drop_controller() const
 {
   return std::make_unique<AssetCatalogTreeViewAllItem::DropController>(
@@ -567,7 +567,7 @@ std::unique_ptr<ui::AbstractTreeViewItemDropController> AssetCatalogTreeViewAllI
 }
 
 AssetCatalogTreeViewAllItem::DropController::DropController(AssetCatalogTreeView &tree_view)
-    : ui::AbstractTreeViewItemDropController(tree_view)
+    : ui::AbstractViewItemDropController(tree_view)
 {
 }
 
@@ -579,7 +579,7 @@ bool AssetCatalogTreeViewAllItem::DropController::can_drop(const wmDrag &drag,
   }
 
   const AssetCatalog *drag_catalog = AssetCatalogDropController::get_drag_catalog(
-      drag, *tree_view<AssetCatalogTreeView>().asset_library_);
+      drag, *get_view<AssetCatalogTreeView>().asset_library_);
   if (drag_catalog->path.parent() == "") {
     *r_disabled_hint = "Catalog is already placed at the highest level";
     return false;
@@ -592,7 +592,7 @@ std::string AssetCatalogTreeViewAllItem::DropController::drop_tooltip(const wmDr
 {
   BLI_assert(drag.type == WM_DRAG_ASSET_CATALOG);
   const AssetCatalog *drag_catalog = AssetCatalogDropController::get_drag_catalog(
-      drag, *tree_view<AssetCatalogTreeView>().asset_library_);
+      drag, *get_view<AssetCatalogTreeView>().asset_library_);
 
   return std::string(TIP_("Move Catalog")) + " '" + drag_catalog->path.name() + "' " +
          TIP_("to the top level of the tree");
@@ -604,14 +604,14 @@ bool AssetCatalogTreeViewAllItem::DropController::on_drop(struct bContext *UNUSE
   BLI_assert(drag.type == WM_DRAG_ASSET_CATALOG);
   return AssetCatalogDropController::drop_asset_catalog_into_catalog(
       drag,
-      tree_view<AssetCatalogTreeView>(),
+      get_view<AssetCatalogTreeView>(),
       /* No value to drop into the root level. */
       std::nullopt);
 }
 
 /* ---------------------------------------------------------------------- */
 
-std::unique_ptr<ui::AbstractTreeViewItemDropController> AssetCatalogTreeViewUnassignedItem::
+std::unique_ptr<ui::AbstractViewItemDropController> AssetCatalogTreeViewUnassignedItem::
     create_drop_controller() const
 {
   return std::make_unique<AssetCatalogTreeViewUnassignedItem::DropController>(
@@ -619,7 +619,7 @@ std::unique_ptr<ui::AbstractTreeViewItemDropController> AssetCatalogTreeViewUnas
 }
 
 AssetCatalogTreeViewUnassignedItem::DropController::DropController(AssetCatalogTreeView &tree_view)
-    : ui::AbstractTreeViewItemDropController(tree_view)
+    : ui::AbstractViewItemDropController(tree_view)
 {
 }
 
@@ -647,7 +647,7 @@ bool AssetCatalogTreeViewUnassignedItem::DropController::on_drop(struct bContext
 {
   /* Assign to nil catalog ID. */
   return AssetCatalogDropController::drop_assets_into_catalog(
-      C, tree_view<AssetCatalogTreeView>(), drag, CatalogID{});
+      C, get_view<AssetCatalogTreeView>(), drag, CatalogID{});
 }
 
 }  // namespace blender::ed::asset_browser
diff --git a/source/blender/editors/space_file/file_ops.c b/source/blender/editors/space_file/file_ops.c
index 62bdd583bc1..59d9a15fbab 100644
--- a/source/blender/editors/space_file/file_ops.c
+++ b/source/blender/editors/space_file/file_ops.c
@@ -1793,7 +1793,7 @@ static bool file_execute(bContext *C, SpaceFile *sfile)
     }
     ED_file_change_dir(C);
   }
-  /* opening file - sends events now, so things get handled on windowqueue level */
+  /* Opening file, sends events now, so things get handled on window-queue level. */
   else if (sfile->op) {
     wmOperator *op = sfile->op;
     char filepath[FILE_MAX];
diff --git a/source/blender/editors/space_graph/graph_buttons.c b/source/blender/editors/space_graph/graph_buttons.c
index bc2705df314..3b8c6cbd1d0 100644
--- a/source/blender/editors/space_graph/graph_buttons.c
+++ b/source/blender/editors/space_graph/graph_buttons.c
@@ -277,7 +277,7 @@ static void graphedit_activekey_update_cb(bContext *UNUSED(C),
 
   /* make sure F-Curve and its handles are still valid after this editing */
   sort_time_fcurve(fcu);
-  calchandles_fcurve(fcu);
+  BKE_fcurve_handles_recalc(fcu);
 }
 
 /* update callback for active keyframe properties - handle-editing wrapper */
diff --git a/source/blender/editors/space_graph/graph_edit.c b/source/blender/editors/space_graph/graph_edit.c
index 7e8bca88744..64a3c603e73 100644
--- a/source/blender/editors/space_graph/graph_edit.c
+++ b/source/blender/editors/space_graph/graph_edit.c
@@ -723,7 +723,7 @@ static bool delete_graph_keys(bAnimContext *ac)
     bool changed;
 
     /* Delete selected keyframes only. */
-    changed = delete_fcurve_keys(fcu);
+    changed = BKE_fcurve_delete_keys_selected(fcu);
 
     if (changed) {
       ale->update |= ANIM_UPDATE_DEFAULT;
@@ -1488,7 +1488,7 @@ static void setipo_graph_keys(bAnimContext *ac, short mode)
    * Currently that's not necessary here.
    */
   for (ale = anim_data.first; ale; ale = ale->next) {
-    ANIM_fcurve_keyframes_loop(NULL, ale->key_data, NULL, set_cb, calchandles_fcurve);
+    ANIM_fcurve_keyframes_loop(NULL, ale->key_data, NULL, set_cb, BKE_fcurve_handles_recalc);
 
     ale->update |= ANIM_UPDATE_DEFAULT_NOHANDLES;
   }
@@ -1566,7 +1566,7 @@ static void seteasing_graph_keys(bAnimContext *ac, short mode)
    * Currently that's not necessary here.
    */
   for (ale = anim_data.first; ale; ale = ale->next) {
-    ANIM_fcurve_keyframes_loop(NULL, ale->key_data, NULL, set_cb, calchandles_fcurve);
+    ANIM_fcurve_keyframes_loop(NULL, ale->key_data, NULL, set_cb, BKE_fcurve_handles_recalc);
 
     ale->update |= ANIM_UPDATE_DEFAULT_NOHANDLES;
   }
@@ -1649,7 +1649,7 @@ static void sethandles_graph_keys(bAnimContext *ac, short mode)
     /* Any selected keyframes for editing? */
     if (ANIM_fcurve_keyframes_loop(NULL, fcu, NULL, sel_cb, NULL)) {
       /* Change type of selected handles. */
-      ANIM_fcurve_keyframes_loop(NULL, fcu, NULL, edit_cb, calchandles_fcurve);
+      ANIM_fcurve_keyframes_loop(NULL, fcu, NULL, edit_cb, BKE_fcurve_handles_recalc);
 
       ale->update |= ANIM_UPDATE_DEFAULT;
     }
@@ -2295,11 +2295,11 @@ static void snap_graph_keys(bAnimContext *ac, short mode)
     /* Perform snapping. */
     if (adt) {
       ANIM_nla_mapping_apply_fcurve(adt, ale->key_data, 0, 0);
-      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, calchandles_fcurve);
+      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, BKE_fcurve_handles_recalc);
       ANIM_nla_mapping_apply_fcurve(adt, ale->key_data, 1, 0);
     }
     else {
-      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, calchandles_fcurve);
+      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, BKE_fcurve_handles_recalc);
     }
 
     ale->update |= ANIM_UPDATE_DEFAULT;
@@ -2555,11 +2555,11 @@ static void mirror_graph_keys(bAnimContext *ac, short mode)
     /* Perform actual mirroring. */
     if (adt) {
       ANIM_nla_mapping_apply_fcurve(adt, ale->key_data, 0, 0);
-      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, calchandles_fcurve);
+      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, BKE_fcurve_handles_recalc);
       ANIM_nla_mapping_apply_fcurve(adt, ale->key_data, 1, 0);
     }
     else {
-      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, calchandles_fcurve);
+      ANIM_fcurve_keyframes_loop(&ked, ale->key_data, NULL, edit_cb, BKE_fcurve_handles_recalc);
     }
 
     ale->update |= ANIM_UPDATE_DEFAULT;
diff --git a/source/blender/editors/space_image/image_edit.c b/source/blender/editors/space_image/image_edit.c
index 950acd77f6a..0de50474ab8 100644
--- a/source/blender/editors/space_image/image_edit.c
+++ b/source/blender/editors/space_image/image_edit.c
@@ -20,6 +20,7 @@
 #include "BKE_image.h"
 #include "BKE_lib_id.h"
 #include "BKE_main.h"
+#include "BKE_scene.h"
 
 #include "IMB_imbuf_types.h"
 
@@ -212,13 +213,7 @@ void ED_space_image_get_size(SpaceImage *sima, int *r_width, int *r_height)
   }
   else if (sima->image && sima->image->type == IMA_TYPE_R_RESULT && scene) {
     /* not very important, just nice */
-    *r_width = (scene->r.xsch * scene->r.size) / 100;
-    *r_height = (scene->r.ysch * scene->r.size) / 100;
-
-    if ((scene->r.mode & R_BORDER) && (scene->r.mode & R_CROP)) {
-      *r_width *= BLI_rctf_size_x(&scene->r.border);
-      *r_height *= BLI_rctf_size_y(&scene->r.border);
-    }
+    BKE_render_resolution(&scene->r, true, r_width, r_height);
   }
   /* I know a bit weak... but preview uses not actual image size */
   // XXX else if (image_preview_active(sima, r_width, r_height));
diff --git a/source/blender/editors/space_image/image_ops.c b/source/blender/editors/space_image/image_ops.c
index 49489b696ef..4036f859231 100644
--- a/source/blender/editors/space_image/image_ops.c
+++ b/source/blender/editors/space_image/image_ops.c
@@ -45,6 +45,7 @@
 #include "BKE_main.h"
 #include "BKE_packedFile.h"
 #include "BKE_report.h"
+#include "BKE_scene.h"
 
 #include "DEG_depsgraph.h"
 
@@ -1830,7 +1831,7 @@ static void image_save_options_from_op(Main *bmain, ImageSaveOptions *opts, wmOp
 }
 
 static bool save_image_op(
-    Main *bmain, Image *ima, ImageUser *iuser, wmOperator *op, ImageSaveOptions *opts)
+    Main *bmain, Image *ima, ImageUser *iuser, wmOperator *op, const ImageSaveOptions *opts)
 {
   WM_cursor_wait(true);
 
@@ -3732,38 +3733,52 @@ static int render_border_exec(bContext *C, wmOperator *op)
   ARegion *region = CTX_wm_region(C);
   Scene *scene = CTX_data_scene(C);
   Render *re = RE_GetSceneRender(scene);
-  RenderData *rd;
-  rctf border;
+  SpaceImage *sima = CTX_wm_space_image(C);
 
   if (re == NULL) {
     /* Shouldn't happen, but better be safe close to the release. */
     return OPERATOR_CANCELLED;
   }
 
-  rd = RE_engine_get_render_data(re);
-  if ((rd->mode & (R_BORDER | R_CROP)) == (R_BORDER | R_CROP)) {
-    BKE_report(op->reports, RPT_INFO, "Can not set border from a cropped render");
-    return OPERATOR_CANCELLED;
-  }
+  /* Get information about the previous render, or current scene if no render yet. */
+  int width, height;
+  BKE_render_resolution(&scene->r, false, &width, &height);
+  const RenderData *rd = ED_space_image_has_buffer(sima) ? RE_engine_get_render_data(re) :
+                                                           &scene->r;
 
-  /* get rectangle from operator */
+  /* Get rectangle from the operator. */
+  rctf border;
   WM_operator_properties_border_to_rctf(op, &border);
   UI_view2d_region_to_view_rctf(&region->v2d, &border, &border);
 
-  /* actually set border */
+  /* Adjust for cropping. */
+  if ((rd->mode & (R_BORDER | R_CROP)) == (R_BORDER | R_CROP)) {
+    border.xmin = rd->border.xmin + border.xmin * (rd->border.xmax - rd->border.xmin);
+    border.xmax = rd->border.xmin + border.xmax * (rd->border.xmax - rd->border.xmin);
+    border.ymin = rd->border.ymin + border.ymin * (rd->border.ymax - rd->border.ymin);
+    border.ymax = rd->border.ymin + border.ymax * (rd->border.ymax - rd->border.ymin);
+  }
+
   CLAMP(border.xmin, 0.0f, 1.0f);
   CLAMP(border.ymin, 0.0f, 1.0f);
   CLAMP(border.xmax, 0.0f, 1.0f);
   CLAMP(border.ymax, 0.0f, 1.0f);
-  scene->r.border = border;
 
-  /* drawing a border surrounding the entire camera view switches off border rendering
-   * or the border covers no pixels */
+  /* Drawing a border surrounding the entire camera view switches off border rendering
+   * or the border covers no pixels. */
   if ((border.xmin <= 0.0f && border.xmax >= 1.0f && border.ymin <= 0.0f && border.ymax >= 1.0f) ||
       (border.xmin == border.xmax || border.ymin == border.ymax)) {
     scene->r.mode &= ~R_BORDER;
   }
   else {
+    /* Snap border to pixel boundaries, so drawing a border within a pixel selects that pixel. */
+    border.xmin = floorf(border.xmin * width) / width;
+    border.xmax = ceilf(border.xmax * width) / width;
+    border.ymin = floorf(border.ymin * height) / height;
+    border.ymax = ceilf(border.ymax * height) / height;
+
+    /* Set border. */
+    scene->r.border = border;
     scene->r.mode |= R_BORDER;
   }
 
diff --git a/source/blender/editors/space_nla/nla_edit.c b/source/blender/editors/space_nla/nla_edit.c
index cc45c86ddcd..801d032a861 100644
--- a/source/blender/editors/space_nla/nla_edit.c
+++ b/source/blender/editors/space_nla/nla_edit.c
@@ -1216,13 +1216,10 @@ static int nlaedit_duplicate_exec(bContext *C, wmOperator *op)
   return OPERATOR_CANCELLED;
 }
 
-static int nlaedit_duplicate_invoke(bContext *C, wmOperator *op, const wmEvent *event)
+static int nlaedit_duplicate_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(event))
 {
   nlaedit_duplicate_exec(C, op);
 
-  RNA_enum_set(op->ptr, "mode", TFM_TRANSLATION);
-  WM_operator_name_call(C, "TRANSFORM_OT_transform", WM_OP_INVOKE_REGION_WIN, op->ptr, event);
-
   return OPERATOR_FINISHED;
 }
 
@@ -1248,9 +1245,6 @@ void NLA_OT_duplicate(wmOperatorType *ot)
                              false,
                              "Linked",
                              "When duplicating strips, assign new copies of the actions they use");
-
-  /* to give to transform */
-  RNA_def_enum(ot->srna, "mode", rna_enum_transform_mode_types, TFM_TRANSLATION, "Mode", "");
 }
 
 /** \} */
@@ -2204,8 +2198,13 @@ static int nlaedit_apply_scale_exec(bContext *C, wmOperator *UNUSED(op))
         /* setup iterator, and iterate over all the keyframes in the action,
          * applying this scaling */
         ked.data = strip;
-        ANIM_animchanneldata_keyframes_loop(
-            &ked, ac.ads, strip->act, ALE_ACT, NULL, bezt_apply_nlamapping, calchandles_fcurve);
+        ANIM_animchanneldata_keyframes_loop(&ked,
+                                            ac.ads,
+                                            strip->act,
+                                            ALE_ACT,
+                                            NULL,
+                                            bezt_apply_nlamapping,
+                                            BKE_fcurve_handles_recalc);
 
         /* clear scale of strip now that it has been applied,
          * and recalculate the extents of the action now that it has been scaled
diff --git a/source/blender/editors/space_nla/nla_ops.c b/source/blender/editors/space_nla/nla_ops.c
index 902e7a176a3..3ae73282230 100644
--- a/source/blender/editors/space_nla/nla_ops.c
+++ b/source/blender/editors/space_nla/nla_ops.c
@@ -16,6 +16,8 @@
 #include "ED_anim_api.h"
 #include "ED_screen.h"
 
+#include "RNA_access.h"
+
 #include "WM_api.h"
 #include "WM_types.h"
 
@@ -138,6 +140,28 @@ void nla_operatortypes(void)
   WM_operatortype_append(NLA_OT_fmodifier_paste);
 }
 
+void ED_operatormacros_nla()
+{
+  wmOperatorType *ot;
+  wmOperatorTypeMacro *otmacro;
+
+  ot = WM_operatortype_append_macro("NLA_OT_duplicate_move",
+                                    "Duplicate",
+                                    "Duplicate selected strips and their Actions and move them",
+                                    OPTYPE_UNDO | OPTYPE_REGISTER);
+  otmacro = WM_operatortype_macro_define(ot, "NLA_OT_duplicate");
+  RNA_boolean_set(otmacro->ptr, "linked", false);
+  WM_operatortype_macro_define(ot, "TRANSFORM_OT_translate");
+
+  ot = WM_operatortype_append_macro("NLA_OT_duplicate_linked_move",
+                                    "Duplicate Linked",
+                                    "Duplicate selected strips and move them",
+                                    OPTYPE_UNDO | OPTYPE_REGISTER);
+  otmacro = WM_operatortype_macro_define(ot, "NLA_OT_duplicate");
+  RNA_boolean_set(otmacro->ptr, "linked", true);
+  WM_operatortype_macro_define(ot, "TRANSFORM_OT_translate");
+}
+
 /* ************************** registration - keymaps **********************************/
 
 void nla_keymap(wmKeyConfig *keyconf)
diff --git a/source/blender/editors/space_node/node_add.cc b/source/blender/editors/space_node/node_add.cc
index 975d4eda7e3..04bf5ef469e 100644
--- a/source/blender/editors/space_node/node_add.cc
+++ b/source/blender/editors/space_node/node_add.cc
@@ -382,7 +382,7 @@ static bool node_add_group_poll(bContext *C)
   if (snode->edittree->type == NTREE_CUSTOM) {
     CTX_wm_operator_poll_msg_set(C,
                                  "This node editor displays a custom (Python defined) node tree. "
-                                 "Dropping node groups isn't supported for this.");
+                                 "Dropping node groups isn't supported for this");
     return false;
   }
   return true;
diff --git a/source/blender/editors/space_outliner/outliner_dragdrop.cc b/source/blender/editors/space_outliner/outliner_dragdrop.cc
index c72080be811..7435fa50a93 100644
--- a/source/blender/editors/space_outliner/outliner_dragdrop.cc
+++ b/source/blender/editors/space_outliner/outliner_dragdrop.cc
@@ -1455,7 +1455,7 @@ static int outliner_item_drag_drop_invoke(bContext *C,
                                        TSE_GPENCIL_EFFECT_BASE);
 
   const int wm_drag_type = use_datastack_drag ? WM_DRAG_DATASTACK : WM_DRAG_ID;
-  wmDrag *drag = WM_event_start_drag(C, data.icon, wm_drag_type, nullptr, 0.0, WM_DRAG_NOP);
+  wmDrag *drag = WM_drag_data_create(C, data.icon, wm_drag_type, nullptr, 0.0, WM_DRAG_NOP);
 
   if (use_datastack_drag) {
     TreeElement *te_bone = nullptr;
@@ -1545,6 +1545,8 @@ static int outliner_item_drag_drop_invoke(bContext *C,
     WM_drag_add_local_ID(drag, data.drag_id, data.drag_parent);
   }
 
+  WM_event_start_prepared_drag(C, drag);
+
   ED_outliner_select_sync_from_outliner(C, space_outliner);
 
   return (OPERATOR_FINISHED | OPERATOR_PASS_THROUGH);
diff --git a/source/blender/editors/space_outliner/outliner_tools.cc b/source/blender/editors/space_outliner/outliner_tools.cc
index 7b7182eb106..9d52103a266 100644
--- a/source/blender/editors/space_outliner/outliner_tools.cc
+++ b/source/blender/editors/space_outliner/outliner_tools.cc
@@ -875,7 +875,7 @@ static void id_override_library_create_fn(bContext *C,
     /* For now, remap all local usages of linked ID to local override one here. */
     ID *id_iter;
     FOREACH_MAIN_ID_BEGIN (bmain, id_iter) {
-      if (ID_IS_LINKED(id_iter)) {
+      if (ID_IS_LINKED(id_iter) || ID_IS_OVERRIDE_LIBRARY(id_iter)) {
         id_iter->tag &= ~LIB_TAG_DOIT;
       }
       else {
diff --git a/source/blender/editors/space_sequencer/sequencer_draw.c b/source/blender/editors/space_sequencer/sequencer_draw.c
index 4b9ff1e170e..eb2e4ef05e5 100644
--- a/source/blender/editors/space_sequencer/sequencer_draw.c
+++ b/source/blender/editors/space_sequencer/sequencer_draw.c
@@ -241,329 +241,296 @@ typedef struct WaveVizData {
   float pos[2];
   float rms_pos;
   bool clip;
-  bool end;
+  bool draw_line;    /* Draw triangle otherwise. */
+  bool final_sample; /* There are no more samples. */
 } WaveVizData;
 
-static int get_section_len(WaveVizData *start, WaveVizData *end)
+static bool seq_draw_waveforms_poll(const bContext *UNUSED(C), SpaceSeq *sseq, Sequence *seq)
 {
-  int len = 0;
-  while (start != end) {
-    len++;
-    if (start->end) {
-      return len;
-    }
-    start++;
-  }
-  return len;
-}
+  const bool strip_is_valid = seq->type == SEQ_TYPE_SOUND_RAM && seq->sound != NULL;
+  const bool overlays_enabled = (sseq->flag & SEQ_SHOW_OVERLAY) != 0;
+  const bool ovelay_option = ((sseq->timeline_overlay.flag & SEQ_TIMELINE_ALL_WAVEFORMS) != 0 ||
+                              (seq->flag & SEQ_AUDIO_DRAW_WAVEFORM));
 
-static void draw_waveform(WaveVizData *iter, WaveVizData *end, GPUPrimType prim_type, bool use_rms)
-{
-  int strip_len = get_section_len(iter, end);
-  if (strip_len > 1) {
-    GPU_blend(GPU_BLEND_ALPHA);
-    GPUVertFormat *format = immVertexFormat();
-    uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
-    uint col = GPU_vertformat_attr_add(format, "color", GPU_COMP_F32, 4, GPU_FETCH_FLOAT);
+  if ((sseq->timeline_overlay.flag & SEQ_TIMELINE_NO_WAVEFORMS) != 0) {
+    return false;
+  }
 
-    immBindBuiltinProgram(GPU_SHADER_2D_FLAT_COLOR);
-    immBegin(prim_type, strip_len);
+  if (strip_is_valid && overlays_enabled && ovelay_option) {
+    return true;
+  }
 
-    while (iter != end) {
-      if (iter->clip) {
-        immAttr4f(col, 1.0f, 0.0f, 0.0f, 0.5f);
-      }
-      else if (use_rms) {
-        immAttr4f(col, 1.0f, 1.0f, 1.0f, 0.8f);
-      }
-      else {
-        immAttr4f(col, 1.0f, 1.0f, 1.0f, 0.5f);
-      }
+  return false;
+}
 
-      if (use_rms) {
-        immVertex2f(pos, iter->pos[0], iter->rms_pos);
-      }
-      else {
-        immVertex2f(pos, iter->pos[0], iter->pos[1]);
-      }
+static void waveform_job_start_if_needed(const bContext *C, Sequence *seq)
+{
+  bSound *sound = seq->sound;
 
-      if (iter->end) {
-        /* End of line. */
-        iter++;
-        strip_len = get_section_len(iter, end);
-        if (strip_len != 0) {
-          immEnd();
-          immUnbindProgram();
-          immBindBuiltinProgram(GPU_SHADER_2D_FLAT_COLOR);
-          immBegin(prim_type, strip_len);
-        }
-      }
-      else {
-        iter++;
-      }
+  BLI_spin_lock(sound->spinlock);
+  if (!sound->waveform) {
+    /* Load the waveform data if it hasn't been loaded and cached already. */
+    if (!(sound->tags & SOUND_TAGS_WAVEFORM_LOADING)) {
+      /* Prevent sounds from reloading. */
+      sound->tags |= SOUND_TAGS_WAVEFORM_LOADING;
+      BLI_spin_unlock(sound->spinlock);
+      sequencer_preview_add_sound(C, seq);
+    }
+    else {
+      BLI_spin_unlock(sound->spinlock);
     }
-    immEnd();
-    immUnbindProgram();
-
-    GPU_blend(GPU_BLEND_NONE);
   }
+  BLI_spin_unlock(sound->spinlock);
 }
 
-static float clamp_frame_coord_to_pixel(float frame_coord,
-                                        float pixel_frac,
-                                        float frames_per_pixel)
+static size_t get_vertex_count(WaveVizData *waveform_data)
 {
-  float cur_pixel = (frame_coord / frames_per_pixel);
-  float new_pixel = (int)(frame_coord / frames_per_pixel) + pixel_frac;
-  if (cur_pixel > new_pixel) {
-    new_pixel += 1.0f;
+  bool draw_line = waveform_data->draw_line;
+  size_t length = 0;
+
+  while (waveform_data->draw_line == draw_line && !waveform_data->final_sample) {
+    waveform_data++;
+    length++;
   }
-  return new_pixel * frames_per_pixel;
+
+  return length;
 }
 
-/**
- * \param x1, x2, y1, y2: The starting and end X value to draw the wave, same for y1 and y2.
- * \param frames_per_pixel: The amount of pixels a whole frame takes up (x-axis direction).
- */
-static void draw_seq_waveform_overlay(View2D *v2d,
-                                      const bContext *C,
-                                      SpaceSeq *sseq,
-                                      Scene *scene,
-                                      Sequence *seq,
-                                      float x1,
-                                      float y1,
-                                      float x2,
-                                      float y2,
-                                      float frames_per_pixel)
+static size_t draw_waveform_segment(WaveVizData *waveform_data, bool use_rms)
 {
-  if (seq->sound && ((sseq->timeline_overlay.flag & SEQ_TIMELINE_ALL_WAVEFORMS) ||
-                     (seq->flag & SEQ_AUDIO_DRAW_WAVEFORM))) {
-    /* Make sure that the start drawing position is aligned to the pixels on the screen to avoid
-     * flickering when moving around the strip.
-     * To do this we figure out the fractional offset in pixel space by checking where the
-     * window starts.
-     * We then append this pixel offset to our strip start coordinate to ensure we are aligned to
-     * the screen pixel grid. */
-    float pixel_frac = v2d->cur.xmin / frames_per_pixel - floor(v2d->cur.xmin / frames_per_pixel);
-    float x1_adj = clamp_frame_coord_to_pixel(x1, pixel_frac, frames_per_pixel);
-
-    /* Offset x1 and x2 values, to match view min/max, if strip is out of bounds. */
-    float x1_offset = max_ff(v2d->cur.xmin, x1_adj);
-    float x2_offset = min_ff(v2d->cur.xmax, x2);
-
-    /* Calculate how long the strip that is in view is in pixels. */
-    int pix_strip_len = round((x2_offset - x1_offset) / frames_per_pixel);
-
-    if (pix_strip_len < 2) {
-      return;
-    }
+  size_t vertices_done = 0;
+  size_t vertex_count = get_vertex_count(waveform_data);
 
-    bSound *sound = seq->sound;
+  /* Not enough data to draw. */
+  if (vertex_count <= 2) {
+    return vertex_count;
+  }
 
-    BLI_spin_lock(sound->spinlock);
-    if (!sound->waveform) {
-      /* Load the waveform data if it hasn't been loaded and cached already. */
-      if (!(sound->tags & SOUND_TAGS_WAVEFORM_LOADING)) {
-        /* Prevent sounds from reloading. */
-        sound->tags |= SOUND_TAGS_WAVEFORM_LOADING;
-        BLI_spin_unlock(sound->spinlock);
-        sequencer_preview_add_sound(C, seq);
-      }
-      else {
-        BLI_spin_unlock(sound->spinlock);
-      }
-      return; /* Nothing to draw. */
-    }
-    BLI_spin_unlock(sound->spinlock);
+  GPU_blend(GPU_BLEND_ALPHA);
+  GPUVertFormat *format = immVertexFormat();
+  GPUPrimType prim_type = waveform_data->draw_line ? GPU_PRIM_LINE_STRIP : GPU_PRIM_TRI_STRIP;
+  uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
+  uint col = GPU_vertformat_attr_add(format, "color", GPU_COMP_F32, 4, GPU_FETCH_FLOAT);
+  immBindBuiltinProgram(GPU_SHADER_2D_FLAT_COLOR);
+  immBegin(prim_type, vertex_count);
 
-    SoundWaveform *waveform = sound->waveform;
+  while (vertices_done < vertex_count && !waveform_data->final_sample) {
+    /* Color. */
+    if (waveform_data->clip) {
+      immAttr4f(col, 1.0f, 0.0f, 0.0f, 0.5f);
+    }
+    else if (use_rms) {
+      immAttr4f(col, 1.0f, 1.0f, 1.0f, 0.8f);
+    }
+    else {
+      immAttr4f(col, 1.0f, 1.0f, 1.0f, 0.5f);
+    }
 
-    /* Waveform could not be built. */
-    if (waveform->length == 0) {
-      return;
+    /* Vertices. */
+    if (use_rms) {
+      immVertex2f(pos, waveform_data->pos[0], waveform_data->rms_pos);
+    }
+    else {
+      immVertex2f(pos, waveform_data->pos[0], waveform_data->pos[1]);
     }
 
-    /* F-Curve lookup is quite expensive, so do this after precondition. */
-    FCurve *fcu = id_data_find_fcurve(&scene->id, seq, &RNA_Sequence, "volume", 0, NULL);
+    vertices_done++;
+    waveform_data++;
+  }
 
-    WaveVizData *tri_strip_arr = MEM_callocN(sizeof(*tri_strip_arr) * pix_strip_len * 2,
-                                             "tri_strip");
-    WaveVizData *line_strip_arr = MEM_callocN(sizeof(*line_strip_arr) * pix_strip_len,
-                                              "line_strip");
+  immEnd();
+  immUnbindProgram();
 
-    WaveVizData *tri_strip_iter = tri_strip_arr;
-    WaveVizData *line_strip_iter = line_strip_arr;
+  GPU_blend(GPU_BLEND_NONE);
 
-    /* The y coordinate for the middle of the strip. */
-    float y_mid = (y1 + y2) / 2.0f;
-    /* The length from the middle of the strip to the top/bottom. */
-    float y_scale = (y2 - y1) / 2.0f;
-    float volume = seq->volume;
+  return vertices_done;
+}
 
-    /* Value to keep track if the previous item to be drawn was a line strip. */
-    int8_t was_line_strip = -1; /* -1 == no previous value. */
+static void draw_waveform(WaveVizData *waveform_data, size_t wave_data_len)
+{
+  size_t items_done = 0;
+  while (items_done < wave_data_len) {
+    if (!waveform_data[items_done].draw_line) { /* Draw RMS. */
+      draw_waveform_segment(&waveform_data[items_done], true);
+    }
+    items_done += draw_waveform_segment(&waveform_data[items_done], false);
+  }
+}
 
-    float samples_per_frame = SOUND_WAVE_SAMPLES_PER_SECOND / FPS;
+static float align_frame_with_pixel(float frame_coord, float frames_per_pixel)
+{
+  return round_fl_to_int(frame_coord / frames_per_pixel) * frames_per_pixel;
+}
 
-    /* How many samples do we have for each pixel? */
-    float samples_per_pix = samples_per_frame * frames_per_pixel;
+static void write_waveform_data(WaveVizData *waveform_data,
+                                const vec2f pos,
+                                const float rms,
+                                const bool is_clipping,
+                                const bool draw_line)
+{
+  waveform_data->pos[0] = pos.x;
+  waveform_data->pos[1] = pos.y;
+  waveform_data->clip = is_clipping;
+  waveform_data->rms_pos = rms;
+  waveform_data->draw_line = draw_line;
+}
 
-    float strip_start_offset = seq->startofs + seq->anim_startofs;
-    float start_sample = 0;
+static size_t waveform_append_sample(WaveVizData *waveform_data,
+                                     vec2f pos,
+                                     const float value_min,
+                                     const float value_max,
+                                     const float y_mid,
+                                     const float y_scale,
+                                     const float rms,
+                                     const bool is_clipping,
+                                     const bool is_line_strip)
+{
+  size_t data_written = 0;
+  pos.y = y_mid + value_min * y_scale;
+  float rms_value = y_mid + max_ff(-rms, value_min) * y_scale;
+  write_waveform_data(&waveform_data[0], pos, rms_value, is_clipping, is_line_strip);
+  data_written++;
+
+  /* Use `value_max` as second vertex for triangle drawing. */
+  if (!is_line_strip) {
+    pos.y = y_mid + value_max * y_scale;
+    rms_value = y_mid + min_ff(rms, value_max) * y_scale;
+    write_waveform_data(&waveform_data[1], pos, rms_value, is_clipping, is_line_strip);
+    data_written++;
+  }
+  return data_written;
+}
 
-    if (strip_start_offset != 0) {
-      /* If start offset is not zero, we need to make sure that we pick the same start sample as if
-       * we simply scrolled the start of the strip off-screen. Otherwise we will get flickering
-       * when changing start offset as the pixel alignment will not be the same for the drawn
-       * samples. */
-      strip_start_offset = clamp_frame_coord_to_pixel(
-          x1 - strip_start_offset, pixel_frac, frames_per_pixel);
-      start_sample = fabsf(strip_start_offset - x1_adj) * samples_per_frame;
-    }
+/**
+ * \param x1, x2, y1, y2: The starting and end X value to draw the wave, same for y1 and y2.
+ * \param frames_per_pixel: The amount of pixels a whole frame takes up (x-axis direction).
+ */
+static void draw_seq_waveform_overlay(
+    const bContext *C, ARegion *region, Sequence *seq, float x1, float y1, float x2, float y2)
+{
+  const View2D *v2d = &region->v2d;
+  Scene *scene = CTX_data_scene(C);
 
-    start_sample += seq->sound->offset_time * SOUND_WAVE_SAMPLES_PER_SECOND;
-    /* If we scrolled the start off-screen, then the start sample should be at the first visible
-     * sample. */
-    start_sample += (x1_offset - x1_adj) * samples_per_frame;
+  const float frames_per_pixel = BLI_rctf_size_x(&region->v2d.cur) / region->winx;
+  const float samples_per_frame = SOUND_WAVE_SAMPLES_PER_SECOND / FPS;
+  float samples_per_pixel = samples_per_frame * frames_per_pixel;
 
-    for (int i = 0; i < pix_strip_len; i++) {
-      float sample_offset = start_sample + i * samples_per_pix;
-      int p = sample_offset;
+  /* Align strip start with nearest pixel to prevent waveform flickering. */
+  const float x1_aligned = align_frame_with_pixel(x1, frames_per_pixel);
+  /* Offset x1 and x2 values, to match view min/max, if strip is out of bounds. */
+  const float frame_start = max_ff(v2d->cur.xmin, x1_aligned);
+  const float frame_end = min_ff(v2d->cur.xmax, x2);
+  const int pixels_to_draw = round_fl_to_int((frame_end - frame_start) / frames_per_pixel);
 
-      if (p < 0) {
-        continue;
-      }
+  if (pixels_to_draw < 2) {
+    return; /* Not much to draw, exit before running job. */
+  }
 
-      if (p >= waveform->length) {
-        break;
-      }
+  waveform_job_start_if_needed(C, seq);
 
-      float value_min = waveform->data[p * 3];
-      float value_max = waveform->data[p * 3 + 1];
-      float rms = waveform->data[p * 3 + 2];
-
-      if (p + 1 < waveform->length) {
-        /* Use simple linear interpolation. */
-        float f = sample_offset - p;
-        value_min = (1.0f - f) * value_min + f * waveform->data[p * 3 + 3];
-        value_max = (1.0f - f) * value_max + f * waveform->data[p * 3 + 4];
-        rms = (1.0f - f) * rms + f * waveform->data[p * 3 + 5];
-        if (samples_per_pix > 1.0f) {
-          /* We need to sum up the values we skip over until the next step. */
-          float next_pos = sample_offset + samples_per_pix;
-          int end_idx = next_pos;
-
-          for (int j = p + 1; (j < waveform->length) && (j < end_idx); j++) {
-            value_min = min_ff(value_min, waveform->data[j * 3]);
-            value_max = max_ff(value_max, waveform->data[j * 3 + 1]);
-            rms = max_ff(rms, waveform->data[j * 3 + 2]);
-          }
-        }
-      }
+  SoundWaveform *waveform = seq->sound->waveform;
+  if (waveform == NULL || waveform->length == 0) {
+    return; /* Waveform was not built. */
+  }
 
-      if (fcu && !BKE_fcurve_is_empty(fcu)) {
-        float evaltime = x1_offset + (i * frames_per_pixel);
-        volume = evaluate_fcurve(fcu, evaltime);
-        CLAMP_MIN(volume, 0.0f);
-      }
+  /* F-Curve lookup is quite expensive, so do this after precondition. */
+  FCurve *fcu = id_data_find_fcurve(&scene->id, seq, &RNA_Sequence, "volume", 0, NULL);
+  WaveVizData *waveform_data = MEM_callocN(sizeof(WaveVizData) * pixels_to_draw * 3, __func__);
+  size_t wave_data_len = 0;
 
-      value_min *= volume;
-      value_max *= volume;
-      rms *= volume;
+  /* Offset must be also aligned, otherwise waveform flickers when moving left handle. */
+  const float strip_offset = align_frame_with_pixel(seq->startofs + seq->anim_startofs,
+                                                    frames_per_pixel);
+  float start_sample = strip_offset * samples_per_frame;
+  start_sample += seq->sound->offset_time * SOUND_WAVE_SAMPLES_PER_SECOND;
+  /* Add off-screen part of strip to offset. */
+  start_sample += (frame_start - x1_aligned) * samples_per_frame;
 
-      bool clipping = false;
+  for (int i = 0; i < pixels_to_draw; i++) {
+    float sample = start_sample + i * samples_per_pixel;
+    int sample_index = round_fl_to_int(sample);
 
-      if (value_max > 1 || value_min < -1) {
-        clipping = true;
+    if (sample_index < 0) {
+      continue;
+    }
 
-        CLAMP_MAX(value_max, 1.0f);
-        CLAMP_MIN(value_min, -1.0f);
-      }
+    if (sample_index >= waveform->length) {
+      break;
+    }
 
-      bool is_line_strip = (value_max - value_min < 0.05f);
-
-      if (!ELEM(was_line_strip, -1, is_line_strip)) {
-        /* If the previously added strip type isn't the same as the current one,
-         * add transition areas so they transition smoothly between each other. */
-        if (is_line_strip) {
-          /* This will be a line strip, end the tri strip. */
-          tri_strip_iter->pos[0] = x1_offset + i * frames_per_pixel;
-          tri_strip_iter->pos[1] = y_mid + value_min * y_scale;
-          tri_strip_iter->clip = clipping;
-          tri_strip_iter->rms_pos = tri_strip_iter->pos[1];
-          tri_strip_iter->end = true;
-
-          /* End of section. */
-          tri_strip_iter++;
-
-          /* Check if we are at the end.
-           * If so, skip one point line. */
-          if (i + 1 == pix_strip_len) {
-            continue;
-          }
-        }
-        else {
-          /* This will be a tri strip. */
-          line_strip_iter--;
-          tri_strip_iter->pos[0] = line_strip_iter->pos[0];
-          tri_strip_iter->pos[1] = line_strip_iter->pos[1];
-          tri_strip_iter->clip = line_strip_iter->clip;
-          tri_strip_iter->rms_pos = line_strip_iter->pos[1];
-          tri_strip_iter++;
-
-          /* Check if line had only one point. */
-          line_strip_iter--;
-          if (line_strip_iter < line_strip_arr || line_strip_iter->end) {
-            /* Only one point, skip it. */
-            line_strip_iter++;
-          }
-          else {
-            /* End of section. */
-            line_strip_iter++;
-            line_strip_iter->end = true;
-            line_strip_iter++;
-          }
+    float value_min = waveform->data[sample_index * 3];
+    float value_max = waveform->data[sample_index * 3 + 1];
+    float rms = waveform->data[sample_index * 3 + 2];
+
+    if (sample_index + 1 < waveform->length) {
+      /* Use simple linear interpolation. */
+      float f = sample - sample_index;
+      value_min = (1.0f - f) * value_min + f * waveform->data[sample_index * 3 + 3];
+      value_max = (1.0f - f) * value_max + f * waveform->data[sample_index * 3 + 4];
+      rms = (1.0f - f) * rms + f * waveform->data[sample_index * 3 + 5];
+      if (samples_per_pixel > 1.0f) {
+        /* We need to sum up the values we skip over until the next step. */
+        float next_pos = sample + samples_per_pixel;
+        int end_idx = next_pos;
+
+        for (int j = sample_index + 1; (j < waveform->length) && (j < end_idx); j++) {
+          value_min = min_ff(value_min, waveform->data[j * 3]);
+          value_max = max_ff(value_max, waveform->data[j * 3 + 1]);
+          rms = max_ff(rms, waveform->data[j * 3 + 2]);
         }
       }
+    }
 
-      was_line_strip = is_line_strip;
-
-      if (is_line_strip) {
-        line_strip_iter->pos[0] = x1_offset + i * frames_per_pixel;
-        line_strip_iter->pos[1] = y_mid + value_min * y_scale;
-        line_strip_iter->clip = clipping;
-        line_strip_iter++;
-      }
-      else {
-        tri_strip_iter->pos[0] = x1_offset + i * frames_per_pixel;
-        tri_strip_iter->pos[1] = y_mid + value_min * y_scale;
-        tri_strip_iter->clip = clipping;
-        tri_strip_iter->rms_pos = y_mid + max_ff(-rms, value_min) * y_scale;
-        tri_strip_iter++;
-
-        tri_strip_iter->pos[0] = x1_offset + i * frames_per_pixel;
-        tri_strip_iter->pos[1] = y_mid + value_max * y_scale;
-        tri_strip_iter->clip = clipping;
-        tri_strip_iter->rms_pos = y_mid + min_ff(rms, value_max) * y_scale;
-        tri_strip_iter++;
-      }
+    float volume = seq->volume;
+    if (fcu && !BKE_fcurve_is_empty(fcu)) {
+      float evaltime = frame_start + (i * frames_per_pixel);
+      volume = evaluate_fcurve(fcu, evaltime);
+      CLAMP_MIN(volume, 0.0f);
     }
 
-    WaveVizData *tri_strip_end = tri_strip_iter;
-    WaveVizData *line_strip_end = line_strip_iter;
+    value_min *= volume;
+    value_max *= volume;
+    rms *= volume;
+
+    bool is_clipping = false;
+
+    if (value_max > 1 || value_min < -1) {
+      is_clipping = true;
 
-    tri_strip_iter = tri_strip_arr;
-    line_strip_iter = line_strip_arr;
+      CLAMP_MAX(value_max, 1.0f);
+      CLAMP_MIN(value_min, -1.0f);
+    }
 
-    draw_waveform(line_strip_iter, line_strip_end, GPU_PRIM_LINE_STRIP, false);
-    draw_waveform(tri_strip_iter, tri_strip_end, GPU_PRIM_TRI_STRIP, false);
-    draw_waveform(tri_strip_iter, tri_strip_end, GPU_PRIM_TRI_STRIP, true);
+    bool is_line_strip = (value_max - value_min < 0.05f);
+    /* The y coordinate for the middle of the strip. */
+    float y_mid = (y1 + y2) / 2.0f;
+    /* The length from the middle of the strip to the top/bottom. */
+    float y_scale = (y2 - y1) / 2.0f;
 
-    MEM_freeN(tri_strip_arr);
-    MEM_freeN(line_strip_arr);
+    vec2f pos = {frame_start + i * frames_per_pixel, y_mid + value_min * y_scale};
+    WaveVizData *new_data = &waveform_data[wave_data_len];
+    wave_data_len += waveform_append_sample(
+        new_data, pos, value_min, value_max, y_mid, y_scale, rms, is_clipping, is_line_strip);
   }
+
+  /* Terminate array, so `get_segment_length()` can know when to stop. */
+  waveform_data[wave_data_len].final_sample = true;
+  draw_waveform(waveform_data, wave_data_len);
+  MEM_freeN(waveform_data);
 }
 
+/*
+static size_t *waveform_append(WaveVizData *waveform_data,
+                               vec2f pos,
+                               const float value_min,
+                               const float value_max,
+                               const float y_mid,
+                               const float y_scale,
+                               const float rms,
+                               const bool is_clipping,
+                               const bool is_line_strip)
+*/
+
 static void drawmeta_contents(Scene *scene,
                               Sequence *seqm,
                               float x1,
@@ -1430,18 +1397,9 @@ static void draw_seq_strip(const bContext *C,
   }
 
   /* Draw sound strip waveform. */
-  if ((seq->type == SEQ_TYPE_SOUND_RAM) && ((sseq->flag & SEQ_SHOW_OVERLAY)) &&
-      (sseq->timeline_overlay.flag & SEQ_TIMELINE_NO_WAVEFORMS) == 0) {
-    draw_seq_waveform_overlay(v2d,
-                              C,
-                              sseq,
-                              scene,
-                              seq,
-                              x1,
-                              y_threshold ? y1 + 0.05f : y1,
-                              x2,
-                              y_threshold ? text_margin_y : y2,
-                              BLI_rctf_size_x(&region->v2d.cur) / region->winx);
+  if (seq_draw_waveforms_poll(C, sseq, seq)) {
+    draw_seq_waveform_overlay(
+        C, region, seq, x1, y_threshold ? y1 + 0.05f : y1, x2, y_threshold ? text_margin_y : y2);
   }
   /* Draw locked state. */
   if (SEQ_transform_is_locked(channels, seq)) {
@@ -1762,8 +1720,7 @@ void sequencer_draw_maskedit(const bContext *C, Scene *scene, ARegion *region, S
       // ED_mask_get_size(C, &width, &height);
 
       //Scene *scene = CTX_data_scene(C);
-      width = (scene->r.size * scene->r.xsch) / 100;
-      height = (scene->r.size * scene->r.ysch) / 100;
+      BKE_render_resolution(&scene->r, false, &width, &height);
 
       ED_mask_draw_region(mask,
                           region,
diff --git a/source/blender/editors/space_sequencer/sequencer_view.c b/source/blender/editors/space_sequencer/sequencer_view.c
index 4d32c00109a..78fa8c379d9 100644
--- a/source/blender/editors/space_sequencer/sequencer_view.c
+++ b/source/blender/editors/space_sequencer/sequencer_view.c
@@ -12,6 +12,7 @@
 #include "DNA_scene_types.h"
 
 #include "BKE_context.h"
+#include "BKE_scene.h"
 
 #include "WM_api.h"
 #include "WM_types.h"
@@ -174,8 +175,7 @@ static int sequencer_view_all_preview_exec(bContext *C, wmOperator *UNUSED(op))
 
   seq_reset_imageofs(sseq);
 
-  imgwidth = (scene->r.size * scene->r.xsch) / 100;
-  imgheight = (scene->r.size * scene->r.ysch) / 100;
+  BKE_render_resolution(&scene->r, false, &imgwidth, &imgheight);
 
   /* Apply aspect, doesn't need to be that accurate. */
   imgwidth = (int)(imgwidth * (scene->r.xasp / scene->r.yasp));
@@ -227,11 +227,11 @@ static int sequencer_view_zoom_ratio_exec(bContext *C, wmOperator *op)
 
   float ratio = RNA_float_get(op->ptr, "ratio");
 
-  float winx = (int)(rd->size * rd->xsch) / 100;
-  float winy = (int)(rd->size * rd->ysch) / 100;
+  int winx, winy;
+  BKE_render_resolution(rd, false, &winx, &winy);
 
-  float facx = BLI_rcti_size_x(&v2d->mask) / winx;
-  float facy = BLI_rcti_size_y(&v2d->mask) / winy;
+  float facx = BLI_rcti_size_x(&v2d->mask) / (float)winx;
+  float facy = BLI_rcti_size_y(&v2d->mask) / (float)winy;
 
   BLI_rctf_resize(&v2d->cur, ceilf(winx * facx / ratio + 0.5f), ceilf(winy * facy / ratio + 0.5f));
 
diff --git a/source/blender/editors/space_spreadsheet/spreadsheet_dataset_draw.cc b/source/blender/editors/space_spreadsheet/spreadsheet_dataset_draw.cc
index aa9b867264a..146b6091bde 100644
--- a/source/blender/editors/space_spreadsheet/spreadsheet_dataset_draw.cc
+++ b/source/blender/editors/space_spreadsheet/spreadsheet_dataset_draw.cc
@@ -145,7 +145,7 @@ void GeometryDataSetTreeViewItem::build_row(uiLayout &row)
      * to the right side of the number, which it didn't have with the button. */
     char element_count[7];
     BLI_str_format_decimal_unit(element_count, *count);
-    UI_but_hint_drawstr_set((uiBut *)this->tree_row_button(), element_count);
+    UI_but_hint_drawstr_set((uiBut *)this->view_item_button(), element_count);
   }
 }
 
diff --git a/source/blender/editors/space_text/text_format_py.c b/source/blender/editors/space_text/text_format_py.c
index aa361f07932..28f536ffa98 100644
--- a/source/blender/editors/space_text/text_format_py.c
+++ b/source/blender/editors/space_text/text_format_py.c
@@ -59,9 +59,9 @@ static int txtfmt_py_find_builtinfunc(const char *string)
   /* clang-format off */
 
   if        (STR_LITERAL_STARTSWITH(string, "and",      len)) { i = len;
-  } else if (STR_LITERAL_STARTSWITH(string, "as",       len)) { i = len;
   } else if (STR_LITERAL_STARTSWITH(string, "assert",   len)) { i = len;
   } else if (STR_LITERAL_STARTSWITH(string, "async",    len)) { i = len;
+  } else if (STR_LITERAL_STARTSWITH(string, "as",       len)) { i = len;
   } else if (STR_LITERAL_STARTSWITH(string, "await",    len)) { i = len;
   } else if (STR_LITERAL_STARTSWITH(string, "break",    len)) { i = len;
   } else if (STR_LITERAL_STARTSWITH(string, "case",     len)) { i = len;
diff --git a/source/blender/editors/space_text/text_ops.c b/source/blender/editors/space_text/text_ops.c
index 05d51cf6362..33219092d20 100644
--- a/source/blender/editors/space_text/text_ops.c
+++ b/source/blender/editors/space_text/text_ops.c
@@ -3396,7 +3396,8 @@ static int text_line_number_invoke(bContext *C, wmOperator *UNUSED(op), const wm
     return OPERATOR_PASS_THROUGH;
   }
 
-  if (!(event->ascii >= '0' && event->ascii <= '9')) {
+  const char event_ascii = WM_event_utf8_to_ascii(event);
+  if (!(event_ascii >= '0' && event_ascii <= '9')) {
     return OPERATOR_PASS_THROUGH;
   }
 
@@ -3406,7 +3407,7 @@ static int text_line_number_invoke(bContext *C, wmOperator *UNUSED(op), const wm
   }
 
   jump_to *= 10;
-  jump_to += (int)(event->ascii - '0');
+  jump_to += (int)(event_ascii - '0');
 
   txt_move_toline(text, jump_to - 1, 0);
   last_jump = time;
@@ -3495,16 +3496,8 @@ static int text_insert_invoke(bContext *C, wmOperator *op, const wmEvent *event)
     }
 
     char str[BLI_UTF8_MAX + 1];
-    size_t len;
-
-    if (event->utf8_buf[0]) {
-      len = BLI_str_utf8_size_safe(event->utf8_buf);
-      memcpy(str, event->utf8_buf, len);
-    }
-    else {
-      /* in theory, ghost can set value to extended ascii here */
-      len = BLI_str_utf8_from_unicode(event->ascii, str, sizeof(str) - 1);
-    }
+    const size_t len = BLI_str_utf8_size_safe(event->utf8_buf);
+    memcpy(str, event->utf8_buf, len);
     str[len] = '\0';
     RNA_string_set(op->ptr, "text", str);
 
diff --git a/source/blender/editors/space_view3d/view3d_edit.c b/source/blender/editors/space_view3d/view3d_edit.c
index 041663b4a00..d6ddd6d044e 100644
--- a/source/blender/editors/space_view3d/view3d_edit.c
+++ b/source/blender/editors/space_view3d/view3d_edit.c
@@ -413,7 +413,9 @@ static void view3d_set_1_to_1_viewborder(Scene *scene,
 {
   RegionView3D *rv3d = region->regiondata;
   float size[2];
-  int im_width = (scene->r.size * scene->r.xsch) / 100;
+
+  int im_width, im_height;
+  BKE_render_resolution(&scene->r, false, &im_width, &im_height);
 
   ED_view3d_calc_camera_border_size(scene, depsgraph, region, v3d, rv3d, size);
 
diff --git a/source/blender/editors/space_view3d/view3d_utils.c b/source/blender/editors/space_view3d/view3d_utils.c
index 1fabdef8da2..85b1af8e55d 100644
--- a/source/blender/editors/space_view3d/view3d_utils.c
+++ b/source/blender/editors/space_view3d/view3d_utils.c
@@ -1492,10 +1492,12 @@ static bool view3d_camera_to_view_selected_impl(struct Main *bmain,
           depsgraph, scene, camera_ob_eval, co, &scale, r_clip_start, r_clip_end)) {
     ObjectTfmProtectedChannels obtfm;
     float obmat_new[4][4];
+    bool is_ortho_camera = false;
 
     if ((camera_ob_eval->type == OB_CAMERA) &&
         (((Camera *)camera_ob_eval->data)->type == CAM_ORTHO)) {
       ((Camera *)camera_ob->data)->ortho_scale = scale;
+      is_ortho_camera = true;
     }
 
     copy_m4_m4(obmat_new, camera_ob_eval->obmat);
@@ -1508,6 +1510,9 @@ static bool view3d_camera_to_view_selected_impl(struct Main *bmain,
 
     /* notifiers */
     DEG_id_tag_update_ex(bmain, &camera_ob->id, ID_RECALC_TRANSFORM);
+    if (is_ortho_camera) {
+      DEG_id_tag_update_ex(bmain, camera_ob->data, ID_RECALC_PARAMETERS);
+    }
 
     return true;
   }
diff --git a/source/blender/editors/transform/CMakeLists.txt b/source/blender/editors/transform/CMakeLists.txt
index 68c4f4e76ca..6984dcb18d4 100644
--- a/source/blender/editors/transform/CMakeLists.txt
+++ b/source/blender/editors/transform/CMakeLists.txt
@@ -39,6 +39,7 @@ set(SRC
   transform_convert_mesh_edge.c
   transform_convert_mesh_skin.c
   transform_convert_mesh_uv.c
+  transform_convert_mesh_vert_cdata.c
   transform_convert_nla.c
   transform_convert_node.c
   transform_convert_object.c
diff --git a/source/blender/editors/transform/transform.h b/source/blender/editors/transform/transform.h
index 049d1b6a90e..b01affc7307 100644
--- a/source/blender/editors/transform/transform.h
+++ b/source/blender/editors/transform/transform.h
@@ -222,6 +222,7 @@ typedef enum {
   TC_MESH_EDGES,
   TC_MESH_SKIN,
   TC_MESH_UV,
+  TC_MESH_VERT_CDATA,
   TC_NLA_DATA,
   TC_NODE_DATA,
   TC_OBJECT,
diff --git a/source/blender/editors/transform/transform_convert.c b/source/blender/editors/transform/transform_convert.c
index d9b971c5478..b0148ce508c 100644
--- a/source/blender/editors/transform/transform_convert.c
+++ b/source/blender/editors/transform/transform_convert.c
@@ -479,132 +479,6 @@ TransDataCurveHandleFlags *initTransDataCurveHandles(TransData *td, struct BezTr
 /** \name UV Coordinates
  * \{ */
 
-/**
- * Find the correction for the scaling factor when "Constrain to Bounds" is active.
- * \param numerator: How far the UV boundary (unit square) is from the origin of the scale.
- * \param denominator: How far the AABB is from the origin of the scale.
- * \param scale: Scale parameter to update.
- */
-static void constrain_scale_to_boundary(const float numerator,
-                                        const float denominator,
-                                        float *scale)
-{
-  if (denominator == 0.0f) {
-    /* The origin of the scale is on the edge of the boundary. */
-    if (numerator < 0.0f) {
-      /* Negative scale will wrap around and put us outside the boundary. */
-      *scale = 0.0f; /* Hold at the boundary instead. */
-    }
-    return; /* Nothing else we can do without more info. */
-  }
-
-  const float correction = numerator / denominator;
-  if (correction < 0.0f || !isfinite(correction)) {
-    /* TODO: Correction is negative or invalid, but we lack context to fix `*scale`. */
-    return;
-  }
-
-  if (denominator < 0.0f) {
-    /* Scale origin is outside boundary, only make scale bigger. */
-    if (*scale < correction) {
-      *scale = correction;
-    }
-    return;
-  }
-
-  /* Scale origin is inside boundary, the "regular" case, limit maximum scale. */
-  if (*scale > correction) {
-    *scale = correction;
-  }
-}
-
-bool clipUVTransform(TransInfo *t, float vec[2], const bool resize)
-{
-  bool clipx = true, clipy = true;
-  float min[2], max[2];
-
-  /* Check if the current image in UV editor is a tiled image or not. */
-  const SpaceImage *sima = t->area->spacedata.first;
-  const Image *image = sima->image;
-  const bool is_tiled_image = image && (image->source == IMA_SRC_TILED);
-  /* Stores the coordinates of the closest UDIM tile.
-   * Also acts as an offset to the tile from the origin of UV space. */
-  float base_offset[2] = {0.0f, 0.0f};
-
-  /* If tiled image then constrain to correct/closest UDIM tile, else 0-1 UV space. */
-  if (is_tiled_image) {
-    int nearest_tile_index = BKE_image_find_nearest_tile(image, t->center_global);
-    if (nearest_tile_index != -1) {
-      nearest_tile_index -= 1001;
-      /* Getting coordinates of nearest tile from the tile index. */
-      base_offset[0] = nearest_tile_index % 10;
-      base_offset[1] = nearest_tile_index / 10;
-    }
-  }
-
-  min[0] = min[1] = FLT_MAX;
-  max[0] = max[1] = FLT_MIN;
-
-  FOREACH_TRANS_DATA_CONTAINER (t, tc) {
-
-    TransData *td;
-    int a;
-
-    for (a = 0, td = tc->data; a < tc->data_len; a++, td++) {
-      minmax_v2v2_v2(min, max, td->loc);
-    }
-  }
-
-  if (resize) {
-    /* Assume no change is required. */
-    float scalex = 1.0f;
-    float scaley = 1.0f;
-
-    /* Update U against the left border. */
-    constrain_scale_to_boundary(
-        t->center_global[0] - base_offset[0], t->center_global[0] - min[0], &scalex);
-    /* Now the right border, negated, because `-1.0 / -1.0 = 1.0` */
-    constrain_scale_to_boundary(base_offset[0] + t->aspect[0] - t->center_global[0],
-                                max[0] - t->center_global[0],
-                                &scalex);
-
-    /* Do the same for the V co-ordinate, which is called `y`. */
-    constrain_scale_to_boundary(
-        t->center_global[1] - base_offset[1], t->center_global[1] - min[1], &scaley);
-    constrain_scale_to_boundary(base_offset[1] + t->aspect[1] - t->center_global[1],
-                                max[1] - t->center_global[1],
-                                &scaley);
-
-    clipx = (scalex != 1.0f);
-    clipy = (scaley != 1.0f);
-    vec[0] *= scalex;
-    vec[1] *= scaley;
-  }
-  else {
-    if (min[0] < base_offset[0]) {
-      vec[0] += base_offset[0] - min[0];
-    }
-    else if (max[0] > base_offset[0] + t->aspect[0]) {
-      vec[0] -= max[0] - base_offset[0] - t->aspect[0];
-    }
-    else {
-      clipx = 0;
-    }
-
-    if (min[1] < base_offset[1]) {
-      vec[1] += base_offset[1] - min[1];
-    }
-    else if (max[1] > base_offset[1] + t->aspect[1]) {
-      vec[1] -= max[1] - base_offset[1] - t->aspect[1];
-    }
-    else {
-      clipy = 0;
-    }
-  }
-
-  return (clipx || clipy);
-}
-
 void clipUVData(TransInfo *t)
 {
   FOREACH_TRANS_DATA_CONTAINER (t, tc) {
@@ -769,7 +643,7 @@ void posttrans_fcurve_clean(FCurve *fcu, const int sel_flag, const bool use_hand
           }
           else {
             /* Delete Keyframe */
-            delete_fcurve_key(fcu, i, 0);
+            BKE_fcurve_delete_key(fcu, i);
           }
 
           /* Update count of how many we've deleted
@@ -779,7 +653,7 @@ void posttrans_fcurve_clean(FCurve *fcu, const int sel_flag, const bool use_hand
         }
         else {
           /* Always delete - Unselected keys don't matter */
-          delete_fcurve_key(fcu, i, 0);
+          BKE_fcurve_delete_key(fcu, i);
         }
 
         /* Stop the RK search... we've found our match now */
@@ -949,6 +823,7 @@ void special_aftertrans_update(bContext *C, TransInfo *t)
     case TC_GPENCIL:
     case TC_LATTICE_VERTS:
     case TC_MBALL_VERTS:
+    case TC_MESH_VERT_CDATA:
     case TC_MESH_UV:
     case TC_MESH_SKIN:
     case TC_OBJECT_TEXSPACE:
@@ -1031,6 +906,7 @@ static void init_proportional_edit(TransInfo *t)
     case TC_MESH_EDGES:
     case TC_MESH_SKIN:
     case TC_MESH_UV:
+    case TC_MESH_VERT_CDATA:
     case TC_NODE_DATA:
     case TC_OBJECT:
     case TC_PARTICLE_VERTS:
@@ -1065,7 +941,7 @@ static void init_proportional_edit(TransInfo *t)
     if (ELEM(convert_type, TC_ACTION_DATA, TC_GRAPH_EDIT_DATA)) {
       /* Distance has already been set. */
     }
-    else if (ELEM(convert_type, TC_MESH_VERTS, TC_MESH_SKIN)) {
+    else if (ELEM(convert_type, TC_MESH_VERTS, TC_MESH_SKIN, TC_MESH_VERT_CDATA)) {
       if (t->flag & T_PROP_CONNECTED) {
         /* Already calculated by transform_convert_mesh_connectivity_distance. */
       }
@@ -1110,6 +986,7 @@ static void init_TransDataContainers(TransInfo *t,
     case TC_MESH_EDGES:
     case TC_MESH_SKIN:
     case TC_MESH_UV:
+    case TC_MESH_VERT_CDATA:
       break;
     case TC_ACTION_DATA:
     case TC_GRAPH_EDIT_DATA:
@@ -1221,6 +1098,7 @@ static eTFlag flags_from_data_type(eTConvertType data_type)
     case TC_MBALL_VERTS:
     case TC_MESH_VERTS:
     case TC_MESH_SKIN:
+    case TC_MESH_VERT_CDATA:
       return T_EDIT | T_POINTS;
     case TC_MESH_EDGES:
       return T_EDIT;
@@ -1320,6 +1198,9 @@ static eTConvertType convert_type_get(const TransInfo *t, Object **r_obj_armatur
       if (t->mode == TFM_SKIN_RESIZE) {
         convert_type = TC_MESH_SKIN;
       }
+      else if (ELEM(t->mode, TFM_BWEIGHT, TFM_VERT_CREASE)) {
+        convert_type = TC_MESH_VERT_CDATA;
+      }
       else {
         convert_type = TC_MESH_VERTS;
       }
@@ -1443,6 +1324,9 @@ void createTransData(bContext *C, TransInfo *t)
     case TC_NLA_DATA:
       createTransNlaData(C, t);
       break;
+    case TC_MESH_VERT_CDATA:
+      createTransMeshVertCData(t);
+      break;
     case TC_NODE_DATA:
       createTransNodeData(t);
       break;
@@ -1749,6 +1633,9 @@ void recalcData(TransInfo *t)
     case TC_MESH_UV:
       recalcData_uv(t);
       break;
+    case TC_MESH_VERT_CDATA:
+      recalcData_mesh_cdata(t);
+      break;
     case TC_NLA_DATA:
       recalcData_nla(t);
       break;
diff --git a/source/blender/editors/transform/transform_convert.h b/source/blender/editors/transform/transform_convert.h
index 037fbe26c77..1b7c33e443c 100644
--- a/source/blender/editors/transform/transform_convert.h
+++ b/source/blender/editors/transform/transform_convert.h
@@ -34,7 +34,6 @@ int special_transform_moving(TransInfo *t);
 void special_aftertrans_update(struct bContext *C, TransInfo *t);
 void sort_trans_data_dist(TransInfo *t);
 void createTransData(struct bContext *C, TransInfo *t);
-bool clipUVTransform(TransInfo *t, float vec[2], bool resize);
 void clipUVData(TransInfo *t);
 void transform_convert_flush_handle2D(TransData *td, TransData2D *td2d, float y_fac);
 /**
@@ -253,6 +252,11 @@ void createTransUVs(bContext *C, TransInfo *t);
 /* helper for recalcData() - for Image Editor transforms */
 void recalcData_uv(TransInfo *t);
 
+/* transform_convert_mesh_vert_cdata.c */
+
+void createTransMeshVertCData(TransInfo *t);
+void recalcData_mesh_cdata(TransInfo *t);
+
 /* transform_convert_nla.c */
 
 void createTransNlaData(bContext *C, TransInfo *t);
diff --git a/source/blender/editors/transform/transform_convert_graph.c b/source/blender/editors/transform/transform_convert_graph.c
index d93fff72de6..b57f5b78939 100644
--- a/source/blender/editors/transform/transform_convert_graph.c
+++ b/source/blender/editors/transform/transform_convert_graph.c
@@ -934,7 +934,7 @@ void recalcData_graphedit(TransInfo *t)
       dosort++;
     }
     else {
-      calchandles_fcurve_ex(fcu, BEZT_FLAG_TEMP_TAG);
+      BKE_fcurve_handles_recalc_ex(fcu, BEZT_FLAG_TEMP_TAG);
     }
 
     /* set refresh tags for objects using this animation,
diff --git a/source/blender/editors/transform/transform_convert_mesh.c b/source/blender/editors/transform/transform_convert_mesh.c
index c8d943df3fa..de736fad94e 100644
--- a/source/blender/editors/transform/transform_convert_mesh.c
+++ b/source/blender/editors/transform/transform_convert_mesh.c
@@ -1408,7 +1408,6 @@ static void VertsToTransData(TransInfo *t,
                              TransDataExtension *tx,
                              BMEditMesh *em,
                              BMVert *eve,
-                             float *bweight,
                              const struct TransIslandData *island_data,
                              const int island_index)
 {
@@ -1449,11 +1448,7 @@ static void VertsToTransData(TransInfo *t,
   td->ext = NULL;
   td->val = NULL;
   td->extra = eve;
-  if (ELEM(t->mode, TFM_BWEIGHT, TFM_VERT_CREASE)) {
-    td->val = bweight;
-    td->ival = *bweight;
-  }
-  else if (t->mode == TFM_SHRINKFATTEN) {
+  if (t->mode == TFM_SHRINKFATTEN) {
     td->ext = tx;
     tx->isize[0] = BM_vert_calc_shell_factor_ex(eve, no, BM_ELEM_SELECT);
   }
@@ -1589,17 +1584,6 @@ void createTransEditVerts(TransInfo *t)
                                       "TransObData ext");
     }
 
-    int cd_vert_bweight_offset = -1;
-    int cd_vert_crease_offset = -1;
-    if (t->mode == TFM_BWEIGHT) {
-      BM_mesh_cd_flag_ensure(bm, BKE_mesh_from_object(tc->obedit), ME_CDFLAG_VERT_BWEIGHT);
-      cd_vert_bweight_offset = CustomData_get_offset(&bm->vdata, CD_BWEIGHT);
-    }
-    else if (t->mode == TFM_VERT_CREASE) {
-      BM_mesh_cd_flag_ensure(bm, BKE_mesh_from_object(tc->obedit), ME_CDFLAG_VERT_CREASE);
-      cd_vert_crease_offset = CustomData_get_offset(&bm->vdata, CD_CREASE);
-    }
-
     TransData *tob = tc->data;
     TransDataMirror *td_mirror = tc->data_mirror;
     BM_ITER_MESH_INDEX (eve, &iter, bm, BM_VERTS_OF_MESH, a) {
@@ -1632,15 +1616,9 @@ void createTransEditVerts(TransInfo *t)
         td_mirror++;
       }
       else if (prop_mode || BM_elem_flag_test(eve, BM_ELEM_SELECT)) {
-        float *bweight = (cd_vert_bweight_offset != -1) ?
-                             BM_ELEM_CD_GET_VOID_P(eve, cd_vert_bweight_offset) :
-                         (cd_vert_crease_offset != -1) ?
-                             BM_ELEM_CD_GET_VOID_P(eve, cd_vert_crease_offset) :
-                             NULL;
-
         /* Do not use the island center in case we are using islands
          * only to get axis for snap/rotate to normal... */
-        VertsToTransData(t, tob, tx, em, eve, bweight, &island_data, island_index);
+        VertsToTransData(t, tob, tx, em, eve, &island_data, island_index);
         if (tx) {
           tx++;
         }
diff --git a/source/blender/editors/transform/transform_convert_mesh_uv.c b/source/blender/editors/transform/transform_convert_mesh_uv.c
index 18868643b6d..bb550909407 100644
--- a/source/blender/editors/transform/transform_convert_mesh_uv.c
+++ b/source/blender/editors/transform/transform_convert_mesh_uv.c
@@ -238,7 +238,6 @@ void createTransUVs(bContext *C, TransInfo *t)
 {
   SpaceImage *sima = CTX_wm_space_image(C);
   Scene *scene = t->scene;
-  ToolSettings *ts = CTX_data_tool_settings(C);
 
   const bool is_prop_edit = (t->flag & T_PROP_EDIT) != 0;
   const bool is_prop_connected = (t->flag & T_PROP_CONNECTED) != 0;
@@ -266,8 +265,7 @@ void createTransUVs(bContext *C, TransInfo *t)
     /* count */
     if (is_island_center) {
       /* create element map with island information */
-      const bool use_facesel = (ts->uv_flag & UV_SYNC_SELECTION) == 0;
-      elementmap = BM_uv_element_map_create(em->bm, scene, use_facesel, true, false, true);
+      elementmap = BM_uv_element_map_create(em->bm, scene, true, false, true);
       if (elementmap == NULL) {
         continue;
       }
diff --git a/source/blender/editors/transform/transform_convert_mesh_vert_cdata.c b/source/blender/editors/transform/transform_convert_mesh_vert_cdata.c
new file mode 100644
index 00000000000..104b45de138
--- /dev/null
+++ b/source/blender/editors/transform/transform_convert_mesh_vert_cdata.c
@@ -0,0 +1,289 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright 2001-2002 NaN Holding BV. All rights reserved. */
+
+/** \file
+ * \ingroup edtransform
+ */
+
+#include "DNA_mesh_types.h"
+#include "DNA_meshdata_types.h"
+
+#include "MEM_guardedalloc.h"
+
+#include "BLI_math.h"
+
+#include "BKE_context.h"
+#include "BKE_crazyspace.h"
+#include "BKE_editmesh.h"
+#include "BKE_modifier.h"
+#include "BKE_scene.h"
+
+#include "ED_mesh.h"
+
+#include "DEG_depsgraph_query.h"
+
+#include "transform.h"
+#include "transform_orientations.h"
+
+#include "transform_convert.h"
+
+/* -------------------------------------------------------------------- */
+/** \name Edit Mesh #CD_BWEIGHT and #CD_CREASE Transform Creation
+ * \{ */
+
+static float *tc_mesh_cdata_transdata_center(const struct TransIslandData *island_data,
+                                             const int island_index,
+                                             BMVert *eve)
+{
+  if (island_data->center && island_index != -1) {
+    return island_data->center[island_index];
+  }
+  return eve->co;
+}
+
+static void tc_mesh_cdata_transdata_create(TransDataBasic *td,
+                                           BMVert *eve,
+                                           float *weight,
+                                           const struct TransIslandData *island_data,
+                                           const int island_index)
+{
+  BLI_assert(BM_elem_flag_test(eve, BM_ELEM_HIDDEN) == 0);
+
+  td->loc = weight;
+  td->iloc[0] = *weight;
+
+  if (BM_elem_flag_test(eve, BM_ELEM_SELECT)) {
+    td->flag |= TD_SELECTED;
+  }
+
+  copy_v3_v3(td->center, tc_mesh_cdata_transdata_center(island_data, island_index, eve));
+  td->extra = eve;
+}
+
+void createTransMeshVertCData(TransInfo *t)
+{
+  BLI_assert(ELEM(t->mode, TFM_BWEIGHT, TFM_VERT_CREASE));
+  FOREACH_TRANS_DATA_CONTAINER (t, tc) {
+    BMEditMesh *em = BKE_editmesh_from_object(tc->obedit);
+    Mesh *me = tc->obedit->data;
+    BMesh *bm = em->bm;
+    BMVert *eve;
+    BMIter iter;
+    float mtx[3][3], smtx[3][3];
+    int a;
+    const int prop_mode = (t->flag & T_PROP_EDIT) ? (t->flag & T_PROP_EDIT_ALL) : 0;
+
+    struct TransIslandData island_data = {NULL};
+    struct TransMirrorData mirror_data = {NULL};
+    struct TransMeshDataCrazySpace crazyspace_data = {NULL};
+
+    /* Support other objects using PET to adjust these, unless connected is enabled. */
+    if ((!prop_mode || (prop_mode & T_PROP_CONNECTED)) && (bm->totvertsel == 0)) {
+      continue;
+    }
+
+    int cd_offset = -1;
+    if (t->mode == TFM_BWEIGHT) {
+      BM_mesh_cd_flag_ensure(bm, me, ME_CDFLAG_VERT_BWEIGHT);
+      cd_offset = CustomData_get_offset(&bm->vdata, CD_BWEIGHT);
+    }
+    else {
+      BM_mesh_cd_flag_ensure(bm, me, ME_CDFLAG_VERT_CREASE);
+      cd_offset = CustomData_get_offset(&bm->vdata, CD_CREASE);
+    }
+
+    if (cd_offset == -1) {
+      continue;
+    }
+
+    int data_len = 0;
+    if (prop_mode) {
+      BM_ITER_MESH (eve, &iter, bm, BM_VERTS_OF_MESH) {
+        if (!BM_elem_flag_test(eve, BM_ELEM_HIDDEN)) {
+          data_len++;
+        }
+      }
+    }
+    else {
+      data_len = bm->totvertsel;
+    }
+
+    if (data_len == 0) {
+      continue;
+    }
+
+    const bool is_island_center = (t->around == V3D_AROUND_LOCAL_ORIGINS);
+    if (is_island_center) {
+      /* In this specific case, near-by vertices will need to know
+       * the island of the nearest connected vertex. */
+      const bool calc_single_islands = ((prop_mode & T_PROP_CONNECTED) &&
+                                        (t->around == V3D_AROUND_LOCAL_ORIGINS) &&
+                                        (em->selectmode & SCE_SELECT_VERTEX));
+
+      const bool calc_island_center = false;
+      const bool calc_island_axismtx = false;
+
+      transform_convert_mesh_islands_calc(
+          em, calc_single_islands, calc_island_center, calc_island_axismtx, &island_data);
+    }
+
+    copy_m3_m4(mtx, tc->obedit->obmat);
+    /* we use a pseudo-inverse so that when one of the axes is scaled to 0,
+     * matrix inversion still works and we can still moving along the other */
+    pseudoinverse_m3_m3(smtx, mtx, PSEUDOINVERSE_EPSILON);
+
+    /* Original index of our connected vertex when connected distances are calculated.
+     * Optional, allocate if needed. */
+    int *dists_index = NULL;
+    float *dists = NULL;
+    if (prop_mode & T_PROP_CONNECTED) {
+      dists = MEM_mallocN(bm->totvert * sizeof(float), __func__);
+      if (is_island_center) {
+        dists_index = MEM_mallocN(bm->totvert * sizeof(int), __func__);
+      }
+      transform_convert_mesh_connectivity_distance(em->bm, mtx, dists, dists_index);
+    }
+
+    /* Create TransDataMirror. */
+    if (tc->use_mirror_axis_any) {
+      bool use_topology = (me->editflag & ME_EDIT_MIRROR_TOPO) != 0;
+      bool use_select = (t->flag & T_PROP_EDIT) == 0;
+      const bool mirror_axis[3] = {
+          tc->use_mirror_axis_x, tc->use_mirror_axis_y, tc->use_mirror_axis_z};
+      transform_convert_mesh_mirrordata_calc(
+          em, use_select, use_topology, mirror_axis, &mirror_data);
+
+      if (mirror_data.vert_map) {
+        tc->data_mirror_len = mirror_data.mirror_elem_len;
+        tc->data_mirror = MEM_mallocN(mirror_data.mirror_elem_len * sizeof(*tc->data_mirror),
+                                      __func__);
+
+        BM_ITER_MESH_INDEX (eve, &iter, bm, BM_VERTS_OF_MESH, a) {
+          if (prop_mode || BM_elem_flag_test(eve, BM_ELEM_SELECT)) {
+            if (mirror_data.vert_map[a].index != -1) {
+              data_len--;
+            }
+          }
+        }
+      }
+    }
+
+    /* Detect CrazySpace [tm]. */
+    transform_convert_mesh_crazyspace_detect(t, tc, em, &crazyspace_data);
+
+    /* Create TransData. */
+    BLI_assert(data_len >= 1);
+    tc->data_len = data_len;
+    tc->data = MEM_callocN(data_len * sizeof(TransData), "TransObData(Mesh EditMode)");
+
+    TransData *td = tc->data;
+    TransDataMirror *td_mirror = tc->data_mirror;
+    BM_ITER_MESH_INDEX (eve, &iter, bm, BM_VERTS_OF_MESH, a) {
+      if (BM_elem_flag_test(eve, BM_ELEM_HIDDEN)) {
+        continue;
+      }
+
+      int island_index = -1;
+      if (island_data.island_vert_map) {
+        const int connected_index = (dists_index && dists_index[a] != -1) ? dists_index[a] : a;
+        island_index = island_data.island_vert_map[connected_index];
+      }
+
+      float *weight = BM_ELEM_CD_GET_VOID_P(eve, cd_offset);
+      if (mirror_data.vert_map && mirror_data.vert_map[a].index != -1) {
+        tc_mesh_cdata_transdata_create(
+            (TransDataBasic *)td_mirror, eve, weight, &island_data, island_index);
+
+        int elem_index = mirror_data.vert_map[a].index;
+        BMVert *v_src = BM_vert_at_index(bm, elem_index);
+
+        td_mirror->flag |= mirror_data.vert_map[a].flag;
+        td_mirror->loc_src = BM_ELEM_CD_GET_VOID_P(v_src, cd_offset);
+        td_mirror++;
+      }
+      else if (prop_mode || BM_elem_flag_test(eve, BM_ELEM_SELECT)) {
+        tc_mesh_cdata_transdata_create(
+            (TransDataBasic *)td, eve, weight, &island_data, island_index);
+
+        if (t->around == V3D_AROUND_LOCAL_ORIGINS) {
+          createSpaceNormal(td->axismtx, eve->no);
+        }
+        else {
+          /* Setting normals */
+          copy_v3_v3(td->axismtx[2], eve->no);
+          td->axismtx[0][0] = td->axismtx[0][1] = td->axismtx[0][2] = td->axismtx[1][0] =
+              td->axismtx[1][1] = td->axismtx[1][2] = 0.0f;
+        }
+
+        if (prop_mode) {
+          if (prop_mode & T_PROP_CONNECTED) {
+            td->dist = dists[a];
+          }
+          else {
+            td->flag |= TD_NOTCONNECTED;
+            td->dist = FLT_MAX;
+          }
+        }
+
+        /* CrazySpace */
+        transform_convert_mesh_crazyspace_transdata_set(
+            mtx,
+            smtx,
+            crazyspace_data.defmats ? crazyspace_data.defmats[a] : NULL,
+            crazyspace_data.quats && BM_elem_flag_test(eve, BM_ELEM_TAG) ?
+                crazyspace_data.quats[a] :
+                NULL,
+            td);
+
+        td++;
+      }
+    }
+
+    transform_convert_mesh_islanddata_free(&island_data);
+    transform_convert_mesh_mirrordata_free(&mirror_data);
+    transform_convert_mesh_crazyspace_free(&crazyspace_data);
+    if (dists) {
+      MEM_freeN(dists);
+    }
+    if (dists_index) {
+      MEM_freeN(dists_index);
+    }
+  }
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Recalc Mesh Data
+ * \{ */
+
+static void tc_mesh_cdata_apply_to_mirror(TransInfo *t)
+{
+  FOREACH_TRANS_DATA_CONTAINER (t, tc) {
+    if (tc->use_mirror_axis_any) {
+      TransDataMirror *td_mirror = tc->data_mirror;
+      for (int i = 0; i < tc->data_mirror_len; i++, td_mirror++) {
+        td_mirror->loc[0] = td_mirror->loc_src[0];
+      }
+    }
+  }
+}
+
+void recalcData_mesh_cdata(TransInfo *t)
+{
+  bool is_canceling = t->state == TRANS_CANCEL;
+  /* mirror modifier clipping? */
+  if (!is_canceling) {
+    if (!(t->flag & T_NO_MIRROR)) {
+      tc_mesh_cdata_apply_to_mirror(t);
+    }
+  }
+
+  FOREACH_TRANS_DATA_CONTAINER (t, tc) {
+    DEG_id_tag_update(tc->obedit->data, ID_RECALC_GEOMETRY);
+    BMEditMesh *em = BKE_editmesh_from_object(tc->obedit);
+    BKE_editmesh_looptri_and_normals_calc(em);
+  }
+}
+
+/** \} */
diff --git a/source/blender/editors/transform/transform_mode_curveshrinkfatten.c b/source/blender/editors/transform/transform_mode_curveshrinkfatten.c
index aa4d608de04..f7f9e14b8ac 100644
--- a/source/blender/editors/transform/transform_mode_curveshrinkfatten.c
+++ b/source/blender/editors/transform/transform_mode_curveshrinkfatten.c
@@ -64,10 +64,8 @@ static void applyCurveShrinkFatten(TransInfo *t, const int UNUSED(mval[2]))
       if (td->val) {
         *td->val = td->ival * ratio;
         /* apply PET */
-        *td->val = (*td->val * td->factor) + ((1.0f - td->factor) * td->ival);
-        if (*td->val <= 0.0f) {
-          *td->val = 0.001f;
-        }
+        *td->val = interpf(*td->val, td->ival, td->factor);
+        CLAMP_MIN(*td->val, 0.0f);
       }
     }
   }
@@ -93,10 +91,6 @@ void initCurveShrinkFatten(TransInfo *t)
   t->num.unit_sys = t->scene->unit.system;
   t->num.unit_type[0] = B_UNIT_NONE;
 
-#ifdef USE_NUM_NO_ZERO
-  t->num.val_flag[0] |= NUM_NO_ZERO;
-#endif
-
   t->flag |= T_NO_CONSTRAINT;
 }
 
diff --git a/source/blender/editors/transform/transform_mode_edge_bevelweight.c b/source/blender/editors/transform/transform_mode_edge_bevelweight.c
index 987d8396907..e96e74b596c 100644
--- a/source/blender/editors/transform/transform_mode_edge_bevelweight.c
+++ b/source/blender/editors/transform/transform_mode_edge_bevelweight.c
@@ -44,16 +44,11 @@ static void transdata_elem_bevel_weight(const TransInfo *UNUSED(t),
                                         TransData *td,
                                         const float weight)
 {
-  if (td->val == NULL) {
+  if (td->loc == NULL) {
     return;
   }
-  *td->val = td->ival + weight * td->factor;
-  if (*td->val < 0.0f) {
-    *td->val = 0.0f;
-  }
-  if (*td->val > 1.0f) {
-    *td->val = 1.0f;
-  }
+  *td->loc = td->iloc[0] + weight * td->factor;
+  CLAMP(*td->loc, 0.0f, 1.0f);
 }
 
 static void transdata_elem_bevel_weight_fn(void *__restrict iter_data_v,
diff --git a/source/blender/editors/transform/transform_mode_edge_crease.c b/source/blender/editors/transform/transform_mode_edge_crease.c
index f1acc2a4c9a..1a3ccf30387 100644
--- a/source/blender/editors/transform/transform_mode_edge_crease.c
+++ b/source/blender/editors/transform/transform_mode_edge_crease.c
@@ -44,17 +44,12 @@ static void transdata_elem_crease(const TransInfo *UNUSED(t),
                                   TransData *td,
                                   const float crease)
 {
-  if (td->val == NULL) {
+  if (td->loc == NULL) {
     return;
   }
 
-  *td->val = td->ival + crease * td->factor;
-  if (*td->val < 0.0f) {
-    *td->val = 0.0f;
-  }
-  if (*td->val > 1.0f) {
-    *td->val = 1.0f;
-  }
+  *td->loc = td->iloc[0] + crease * td->factor;
+  CLAMP(*td->loc, 0.0f, 1.0f);
 }
 
 static void transdata_elem_crease_fn(void *__restrict iter_data_v,
diff --git a/source/blender/editors/transform/transform_mode_gpopacity.c b/source/blender/editors/transform/transform_mode_gpopacity.c
index 83dce17d104..8b9431b65ea 100644
--- a/source/blender/editors/transform/transform_mode_gpopacity.c
+++ b/source/blender/editors/transform/transform_mode_gpopacity.c
@@ -74,7 +74,7 @@ static void applyGPOpacity(TransInfo *t, const int UNUSED(mval[2]))
       if (td->val) {
         *td->val = td->ival * ratio;
         /* apply PET */
-        *td->val = (*td->val * td->factor) + ((1.0f - td->factor) * td->ival);
+        *td->val = interpf(*td->val, td->ival, td->factor);
         CLAMP(*td->val, 0.0f, 1.0f);
       }
     }
diff --git a/source/blender/editors/transform/transform_mode_gpshrinkfatten.c b/source/blender/editors/transform/transform_mode_gpshrinkfatten.c
index 796d5c7ae9c..d8ec7d4ff50 100644
--- a/source/blender/editors/transform/transform_mode_gpshrinkfatten.c
+++ b/source/blender/editors/transform/transform_mode_gpshrinkfatten.c
@@ -74,7 +74,7 @@ static void applyGPShrinkFatten(TransInfo *t, const int UNUSED(mval[2]))
       if (td->val) {
         *td->val = td->ival * ratio;
         /* apply PET */
-        *td->val = (*td->val * td->factor) + ((1.0f - td->factor) * td->ival);
+        *td->val = interpf(*td->val, td->ival, td->factor);
         if (*td->val <= 0.0f) {
           *td->val = 0.001f;
         }
diff --git a/source/blender/editors/transform/transform_mode_maskshrinkfatten.c b/source/blender/editors/transform/transform_mode_maskshrinkfatten.c
index 19a3deade63..e2ccf61796b 100644
--- a/source/blender/editors/transform/transform_mode_maskshrinkfatten.c
+++ b/source/blender/editors/transform/transform_mode_maskshrinkfatten.c
@@ -90,7 +90,7 @@ static void applyMaskShrinkFatten(TransInfo *t, const int UNUSED(mval[2]))
         }
 
         /* apply PET */
-        *td->val = (*td->val * td->factor) + ((1.0f - td->factor) * td->ival);
+        *td->val = interpf(*td->val, td->ival, td->factor);
         if (*td->val <= 0.0f) {
           *td->val = 0.001f;
         }
diff --git a/source/blender/editors/transform/transform_mode_resize.c b/source/blender/editors/transform/transform_mode_resize.c
index 31d40486afc..bbe1cfdf521 100644
--- a/source/blender/editors/transform/transform_mode_resize.c
+++ b/source/blender/editors/transform/transform_mode_resize.c
@@ -11,6 +11,7 @@
 #include "BLI_task.h"
 
 #include "BKE_context.h"
+#include "BKE_image.h"
 #include "BKE_unit.h"
 
 #include "ED_screen.h"
@@ -84,6 +85,109 @@ static void ApplySnapResize(TransInfo *t, float vec[3])
   }
 }
 
+/**
+ * Find the correction for the scaling factor when "Constrain to Bounds" is active.
+ * \param numerator: How far the UV boundary (unit square) is from the origin of the scale.
+ * \param denominator: How far the AABB is from the origin of the scale.
+ * \param scale: Scale parameter to update.
+ */
+static void constrain_scale_to_boundary(const float numerator,
+                                        const float denominator,
+                                        float *scale)
+{
+  if (denominator == 0.0f) {
+    /* The origin of the scale is on the edge of the boundary. */
+    if (numerator < 0.0f) {
+      /* Negative scale will wrap around and put us outside the boundary. */
+      *scale = 0.0f; /* Hold at the boundary instead. */
+    }
+    return; /* Nothing else we can do without more info. */
+  }
+
+  const float correction = numerator / denominator;
+  if (correction < 0.0f || !isfinite(correction)) {
+    /* TODO: Correction is negative or invalid, but we lack context to fix `*scale`. */
+    return;
+  }
+
+  if (denominator < 0.0f) {
+    /* Scale origin is outside boundary, only make scale bigger. */
+    if (*scale < correction) {
+      *scale = correction;
+    }
+    return;
+  }
+
+  /* Scale origin is inside boundary, the "regular" case, limit maximum scale. */
+  if (*scale > correction) {
+    *scale = correction;
+  }
+}
+
+static bool clip_uv_transform_resize(TransInfo *t, float vec[2])
+{
+  /* Check if the current image in UV editor is a tiled image or not. */
+  const SpaceImage *sima = t->area->spacedata.first;
+  const Image *image = sima->image;
+  const bool is_tiled_image = image && (image->source == IMA_SRC_TILED);
+
+  /* Stores the coordinates of the closest UDIM tile.
+   * Also acts as an offset to the tile from the origin of UV space. */
+  float base_offset[2] = {0.0f, 0.0f};
+
+  /* If tiled image then constrain to correct/closest UDIM tile, else 0-1 UV space. */
+  if (is_tiled_image) {
+    int nearest_tile_index = BKE_image_find_nearest_tile(image, t->center_global);
+    if (nearest_tile_index != -1) {
+      nearest_tile_index -= 1001;
+      /* Getting coordinates of nearest tile from the tile index. */
+      base_offset[0] = nearest_tile_index % 10;
+      base_offset[1] = nearest_tile_index / 10;
+    }
+  }
+
+  /* Assume no change is required. */
+  float scale = 1.0f;
+
+  /* Are we scaling U and V together, or just one axis? */
+  const bool adjust_u = !(t->con.mode & CON_AXIS1);
+  const bool adjust_v = !(t->con.mode & CON_AXIS0);
+  const bool use_local_center = transdata_check_local_center(t, t->around);
+  FOREACH_TRANS_DATA_CONTAINER (t, tc) {
+    for (TransData *td = tc->data; td < tc->data + tc->data_len; td++) {
+
+      /* Get scale origin. */
+      const float *scale_origin = use_local_center ? td->center : t->center_global;
+
+      /* Alias td->loc as min and max just in case we need to optimize later. */
+      const float *min = td->loc;
+      const float *max = td->loc;
+
+      if (adjust_u) {
+        /* Update U against the left border. */
+        constrain_scale_to_boundary(
+            scale_origin[0] - base_offset[0], scale_origin[0] - min[0], &scale);
+
+        /* Now the right border, negated, because `-1.0 / -1.0 = 1.0` */
+        constrain_scale_to_boundary(
+            base_offset[0] + t->aspect[0] - scale_origin[0], max[0] - scale_origin[0], &scale);
+      }
+
+      /* Do the same for the V co-ordinate. */
+      if (adjust_v) {
+        constrain_scale_to_boundary(
+            scale_origin[1] - base_offset[1], scale_origin[1] - min[1], &scale);
+
+        constrain_scale_to_boundary(
+            base_offset[1] + t->aspect[1] - scale_origin[1], max[1] - scale_origin[1], &scale);
+      }
+    }
+  }
+  vec[0] *= scale;
+  vec[1] *= scale;
+  return scale != 1.0f;
+}
+
 static void applyResize(TransInfo *t, const int UNUSED(mval[2]))
 {
   float mat[3][3];
@@ -157,7 +261,7 @@ static void applyResize(TransInfo *t, const int UNUSED(mval[2]))
   }
 
   /* Evil hack - redo resize if clipping needed. */
-  if (t->flag & T_CLIP_UV && clipUVTransform(t, t->values_final, 1)) {
+  if (t->flag & T_CLIP_UV && clip_uv_transform_resize(t, t->values_final)) {
     size_to_mat3(mat, t->values_final);
 
     if (t->con.mode & CON_APPLY) {
diff --git a/source/blender/editors/transform/transform_mode_translate.c b/source/blender/editors/transform/transform_mode_translate.c
index 65690f9069d..67bdeb3fed0 100644
--- a/source/blender/editors/transform/transform_mode_translate.c
+++ b/source/blender/editors/transform/transform_mode_translate.c
@@ -16,6 +16,7 @@
 #include "BLI_task.h"
 
 #include "BKE_context.h"
+#include "BKE_image.h"
 #include "BKE_report.h"
 #include "BKE_unit.h"
 
@@ -434,6 +435,60 @@ static void applyTranslationValue(TransInfo *t, const float vec[3])
   custom_data->prev.rotate_mode = rotate_mode;
 }
 
+static bool clip_uv_transform_translation(TransInfo *t, float vec[2])
+{
+  /* Check if the current image in UV editor is a tiled image or not. */
+  const SpaceImage *sima = t->area->spacedata.first;
+  const Image *image = sima->image;
+  const bool is_tiled_image = image && (image->source == IMA_SRC_TILED);
+
+  /* Stores the coordinates of the closest UDIM tile.
+   * Also acts as an offset to the tile from the origin of UV space. */
+  float base_offset[2] = {0.0f, 0.0f};
+
+  /* If tiled image then constrain to correct/closest UDIM tile, else 0-1 UV space. */
+  if (is_tiled_image) {
+    int nearest_tile_index = BKE_image_find_nearest_tile(image, t->center_global);
+    if (nearest_tile_index != -1) {
+      nearest_tile_index -= 1001;
+      /* Getting coordinates of nearest tile from the tile index. */
+      base_offset[0] = nearest_tile_index % 10;
+      base_offset[1] = nearest_tile_index / 10;
+    }
+  }
+
+  float min[2], max[2];
+  min[0] = min[1] = FLT_MAX;
+  max[0] = max[1] = -FLT_MAX;
+
+  FOREACH_TRANS_DATA_CONTAINER (t, tc) {
+    for (TransData *td = tc->data; td < tc->data + tc->data_len; td++) {
+      minmax_v2v2_v2(min, max, td->loc);
+    }
+  }
+
+  bool result = false;
+  if (min[0] < base_offset[0]) {
+    vec[0] += base_offset[0] - min[0];
+    result = true;
+  }
+  else if (max[0] > base_offset[0] + t->aspect[0]) {
+    vec[0] -= max[0] - base_offset[0] - t->aspect[0];
+    result = true;
+  }
+
+  if (min[1] < base_offset[1]) {
+    vec[1] += base_offset[1] - min[1];
+    result = true;
+  }
+  else if (max[1] > base_offset[1] + t->aspect[1]) {
+    vec[1] -= max[1] - base_offset[1] - t->aspect[1];
+    result = true;
+  }
+
+  return result;
+}
+
 static void applyTranslation(TransInfo *t, const int UNUSED(mval[2]))
 {
   char str[UI_MAX_DRAW_STR];
@@ -498,7 +553,7 @@ static void applyTranslation(TransInfo *t, const int UNUSED(mval[2]))
   applyTranslationValue(t, global_dir);
 
   /* evil hack - redo translation if clipping needed */
-  if (t->flag & T_CLIP_UV && clipUVTransform(t, global_dir, 0)) {
+  if (t->flag & T_CLIP_UV && clip_uv_transform_translation(t, global_dir)) {
     applyTranslationValue(t, global_dir);
 
     /* In proportional edit it can happen that */
diff --git a/source/blender/editors/transform/transform_ops.c b/source/blender/editors/transform/transform_ops.c
index a64eff8f981..7c94241f3e3 100644
--- a/source/blender/editors/transform/transform_ops.c
+++ b/source/blender/editors/transform/transform_ops.c
@@ -566,6 +566,17 @@ static bool transform_poll_property(const bContext *UNUSED(C),
     }
   }
 
+  /* Snapping. */
+  {
+    PropertyRNA *prop_snap = RNA_struct_find_property(op->ptr, "snap");
+    if (prop_snap && (prop_snap != prop) &&
+        (RNA_property_boolean_get(op->ptr, prop_snap) == false)) {
+      if (STRPREFIX(prop_id, "snap") || STRPREFIX(prop_id, "use_snap")) {
+        return false;
+      }
+    }
+  }
+
   return true;
 }
 
@@ -644,28 +655,63 @@ void Transform_Properties(struct wmOperatorType *ot, int flags)
   }
 
   if (flags & P_SNAP) {
-    prop = RNA_def_boolean(ot->srna, "snap", 0, "Use Snapping Options", "");
+    prop = RNA_def_boolean(ot->srna, "snap", false, "Use Snapping Options", "");
     RNA_def_property_flag(prop, PROP_HIDDEN);
 
+    prop = RNA_def_enum(ot->srna,
+                        "snap_elements",
+                        rna_enum_snap_element_items,
+                        SCE_SNAP_MODE_INCREMENT,
+                        "Snap to Elements",
+                        "");
+    RNA_def_property_flag(prop, PROP_ENUM_FLAG);
+
+    RNA_def_boolean(ot->srna, "use_snap_project", false, "Project Individual Elements", "");
+
     if (flags & P_GEO_SNAP) {
-      /* TODO(@gfxcoder): Rename `snap_target` to `snap_source` to avoid
-       * previous ambiguity of "target" (now, "source" is geometry to be moved and "target" is
-       * geometry to which moved geometry is snapped).  Use "Source snap point" and "Point on
-       * source that will snap to target" for name and description, respectively. */
-      prop = RNA_def_enum(ot->srna, "snap_target", rna_enum_snap_source_items, 0, "Target", "");
+      /* TODO(@gfxcoder): Rename `snap_target` to `snap_source` to avoid previous ambiguity of
+       * "target" (now, "source" is geometry to be moved and "target" is geometry to which moved
+       * geometry is snapped).  Use "Source snap point" and "Point on source that will snap to
+       * target" for name and description, respectively. */
+      prop = RNA_def_enum(ot->srna, "snap_target", rna_enum_snap_source_items, 0, "Snap With", "");
+      RNA_def_property_flag(prop, PROP_HIDDEN);
+
+      /* Target selection. */
+      prop = RNA_def_boolean(ot->srna, "use_snap_self", true, "Target: Include Active", "");
       RNA_def_property_flag(prop, PROP_HIDDEN);
+      prop = RNA_def_boolean(ot->srna, "use_snap_edit", true, "Target: Include Edit", "");
+      RNA_def_property_flag(prop, PROP_HIDDEN);
+      prop = RNA_def_boolean(ot->srna, "use_snap_nonedit", true, "Target: Include Non-Edited", "");
+      RNA_def_property_flag(prop, PROP_HIDDEN);
+      prop = RNA_def_boolean(
+          ot->srna, "use_snap_selectable_only", false, "Target: Exclude Non-Selectable", "");
+      RNA_def_property_flag(prop, PROP_HIDDEN);
+
+      /* Face Nearest options */
+      prop = RNA_def_boolean(
+          ot->srna, "use_snap_to_same_target", false, "Snap to Same Target", "");
+      RNA_def_property_flag(prop, PROP_HIDDEN);
+      prop = RNA_def_int(
+          ot->srna, "snap_face_nearest_steps", 1, 1, 32767, "Face Nearest Steps", "", 1, 32767);
+      RNA_def_property_flag(prop, PROP_HIDDEN);
+
       prop = RNA_def_float_vector(
           ot->srna, "snap_point", 3, NULL, -FLT_MAX, FLT_MAX, "Point", "", -FLT_MAX, FLT_MAX);
       RNA_def_property_flag(prop, PROP_HIDDEN);
 
       if (flags & P_ALIGN_SNAP) {
-        prop = RNA_def_boolean(ot->srna, "snap_align", 0, "Align with Point Normal", "");
+        prop = RNA_def_boolean(ot->srna, "snap_align", false, "Align with Point Normal", "");
         RNA_def_property_flag(prop, PROP_HIDDEN);
         prop = RNA_def_float_vector(
             ot->srna, "snap_normal", 3, NULL, -FLT_MAX, FLT_MAX, "Normal", "", -FLT_MAX, FLT_MAX);
         RNA_def_property_flag(prop, PROP_HIDDEN);
       }
     }
+    else {
+      prop = RNA_def_boolean(
+          ot->srna, "use_snap_selectable_only", false, "Target: Exclude Non-Selectable", "");
+      RNA_def_property_flag(prop, PROP_HIDDEN);
+    }
   }
 
   if (flags & P_GPENCIL_EDIT) {
diff --git a/source/blender/editors/util/numinput.c b/source/blender/editors/util/numinput.c
index be6ac6e13e6..60cbc2a2df6 100644
--- a/source/blender/editors/util/numinput.c
+++ b/source/blender/editors/util/numinput.c
@@ -311,6 +311,7 @@ static bool editstr_is_simple_numinput(const char ascii)
 bool handleNumInput(bContext *C, NumInput *n, const wmEvent *event)
 {
   const char *utf8_buf = NULL;
+  const char event_ascii = WM_event_utf8_to_ascii(event);
   char ascii[2] = {'\0', '\0'};
   bool updated = false;
   short idx = n->idx, idx_max = n->idx_max;
@@ -321,8 +322,8 @@ bool handleNumInput(bContext *C, NumInput *n, const wmEvent *event)
   if (U.flag & USER_FLAG_NUMINPUT_ADVANCED)
 #endif
   {
-    if (((event->modifier & (KM_CTRL | KM_ALT)) == 0) && (event->ascii != '\0') &&
-        strchr("01234567890@%^&*-+/{}()[]<>.|", event->ascii)) {
+    if (((event->modifier & (KM_CTRL | KM_ALT)) == 0) && (event_ascii != '\0') &&
+        strchr("01234567890@%^&*-+/{}()[]<>.|", event_ascii)) {
       if (!(n->flag & NUM_EDIT_FULL)) {
         n->flag |= NUM_EDITED;
         n->flag |= NUM_EDIT_FULL;
@@ -333,7 +334,7 @@ bool handleNumInput(bContext *C, NumInput *n, const wmEvent *event)
 
 #ifdef USE_FAKE_EDIT
   /* XXX Hack around keyboards without direct access to '=' nor '*'... */
-  if (ELEM(event->ascii, '=', '*')) {
+  if (ELEM(event_ascii, '=', '*')) {
     if (!(n->flag & NUM_EDIT_FULL)) {
       n->flag |= NUM_EDIT_FULL;
       n->val_flag[idx] |= NUM_EDITED;
@@ -357,7 +358,7 @@ bool handleNumInput(bContext *C, NumInput *n, const wmEvent *event)
       else {
         /* might be a char too... */
         utf8_buf = event->utf8_buf;
-        ascii[0] = event->ascii;
+        ascii[0] = event_ascii;
       }
       break;
     case EVT_BACKSPACEKEY:
@@ -523,9 +524,9 @@ bool handleNumInput(bContext *C, NumInput *n, const wmEvent *event)
       break;
   }
 
-  if (!updated && !utf8_buf && (event->utf8_buf[0] || event->ascii)) {
+  if (!updated && !utf8_buf && event->utf8_buf[0]) {
     utf8_buf = event->utf8_buf;
-    ascii[0] = event->ascii;
+    ascii[0] = event_ascii;
   }
 
   /* Up to this point, if we have a ctrl modifier, skip.
diff --git a/source/blender/editors/uvedit/uvedit_ops.c b/source/blender/editors/uvedit/uvedit_ops.c
index 4844ff22b68..74a9989f550 100644
--- a/source/blender/editors/uvedit/uvedit_ops.c
+++ b/source/blender/editors/uvedit/uvedit_ops.c
@@ -544,7 +544,7 @@ static bool uvedit_uv_straighten(Scene *scene, BMesh *bm, eUVWeldAlign tool)
     return false;
   }
 
-  UvElementMap *element_map = BM_uv_element_map_create(bm, scene, false, true, false, true);
+  UvElementMap *element_map = BM_uv_element_map_create(bm, scene, true, false, true);
   if (element_map == NULL) {
     return false;
   }
@@ -1036,6 +1036,12 @@ static bool uv_snap_cursor_to_selection(Scene *scene,
   return ED_uvedit_center_multi(scene, objects_edit, objects_len, sima->cursor, sima->around);
 }
 
+static void uv_snap_cursor_to_origin(float uvco[2])
+{
+  uvco[0] = 0;
+  uvco[1] = 0;
+}
+
 static int uv_snap_cursor_exec(bContext *C, wmOperator *op)
 {
   SpaceImage *sima = CTX_wm_space_image(C);
@@ -1058,6 +1064,10 @@ static int uv_snap_cursor_exec(bContext *C, wmOperator *op)
       MEM_freeN(objects);
       break;
     }
+    case 2:
+      uv_snap_cursor_to_origin(sima->cursor);
+      changed = true;
+      break;
   }
 
   if (!changed) {
@@ -1074,6 +1084,7 @@ static void UV_OT_snap_cursor(wmOperatorType *ot)
   static const EnumPropertyItem target_items[] = {
       {0, "PIXELS", 0, "Pixels", ""},
       {1, "SELECTED", 0, "Selected", ""},
+      {2, "ORIGIN", 0, "Origin", ""},
       {0, NULL, 0, NULL, NULL},
   };
 
diff --git a/source/blender/editors/uvedit/uvedit_select.c b/source/blender/editors/uvedit/uvedit_select.c
index db834f6a0fd..d59dcb4f4ed 100644
--- a/source/blender/editors/uvedit/uvedit_select.c
+++ b/source/blender/editors/uvedit/uvedit_select.c
@@ -3582,6 +3582,7 @@ static int uv_box_select_exec(bContext *C, wmOperator *op)
       }
     }
     else if (use_edge && !pinned) {
+      bool do_second_pass = true;
       BM_ITER_MESH (efa, &iter, em->bm, BM_FACES_OF_MESH) {
         if (!uvedit_face_visible_test(scene, efa)) {
           continue;
@@ -3596,11 +3597,35 @@ static int uv_box_select_exec(bContext *C, wmOperator *op)
             uvedit_edge_select_set_with_sticky(
                 scene, em, l_prev, select, false, cd_loop_uv_offset);
             changed = true;
+            do_second_pass = false;
           }
           l_prev = l;
           luv_prev = luv;
         }
       }
+      /* Do a second pass if no complete edges could be selected.
+       * This matches wire-frame edit-mesh selection in the 3D view. */
+      if (do_second_pass) {
+        /* Second pass to check if edges partially overlap with the selection area (box). */
+        BM_ITER_MESH (efa, &iter, em->bm, BM_FACES_OF_MESH) {
+          if (!uvedit_face_visible_test(scene, efa)) {
+            continue;
+          }
+          BMLoop *l_prev = BM_FACE_FIRST_LOOP(efa)->prev;
+          MLoopUV *luv_prev = BM_ELEM_CD_GET_VOID_P(l_prev, cd_loop_uv_offset);
+
+          BM_ITER_ELEM (l, &liter, efa, BM_LOOPS_OF_FACE) {
+            luv = BM_ELEM_CD_GET_VOID_P(l, cd_loop_uv_offset);
+            if (BLI_rctf_isect_segment(&rectf, luv_prev->uv, luv->uv)) {
+              uvedit_edge_select_set_with_sticky(
+                  scene, em, l_prev, select, false, cd_loop_uv_offset);
+              changed = true;
+            }
+            l_prev = l;
+            luv_prev = luv;
+          }
+        }
+      }
     }
     else {
       /* other selection modes */
@@ -3920,6 +3945,24 @@ static bool do_lasso_select_mesh_uv_is_point_inside(const ARegion *region,
   return false;
 }
 
+static bool do_lasso_select_mesh_uv_is_edge_inside(const ARegion *region,
+                                                   const rcti *clip_rect,
+                                                   const int mcoords[][2],
+                                                   const int mcoords_len,
+                                                   const float co_test_a[2],
+                                                   const float co_test_b[2])
+{
+  int co_screen_a[2], co_screen_b[2];
+  if (UI_view2d_view_to_region_segment_clip(
+          &region->v2d, co_test_a, co_test_b, co_screen_a, co_screen_b) &&
+      BLI_rcti_isect_segment(clip_rect, co_screen_a, co_screen_b) &&
+      BLI_lasso_is_edge_inside(
+          mcoords, mcoords_len, UNPACK2(co_screen_a), UNPACK2(co_screen_b), V2D_IS_CLIPPED)) {
+    return true;
+  }
+  return false;
+}
+
 static bool do_lasso_select_mesh_uv(bContext *C,
                                     const int mcoords[][2],
                                     const int mcoords_len,
@@ -3988,6 +4031,7 @@ static bool do_lasso_select_mesh_uv(bContext *C,
       }
     }
     else if (use_edge) {
+      bool do_second_pass = true;
       BM_ITER_MESH (efa, &iter, em->bm, BM_FACES_OF_MESH) {
         if (!uvedit_face_visible_test(scene, efa)) {
           continue;
@@ -4004,12 +4048,37 @@ static bool do_lasso_select_mesh_uv(bContext *C,
                   region, &rect, mcoords, mcoords_len, luv_prev->uv)) {
             uvedit_edge_select_set_with_sticky(
                 scene, em, l_prev, select, false, cd_loop_uv_offset);
+            do_second_pass = false;
             changed = true;
           }
           l_prev = l;
           luv_prev = luv;
         }
       }
+      /* Do a second pass if no complete edges could be selected.
+       * This matches wire-frame edit-mesh selection in the 3D view. */
+      if (do_second_pass) {
+        /* Second pass to check if edges partially overlap with the selection area (lasso). */
+        BM_ITER_MESH (efa, &iter, em->bm, BM_FACES_OF_MESH) {
+          if (!uvedit_face_visible_test(scene, efa)) {
+            continue;
+          }
+          BMLoop *l_prev = BM_FACE_FIRST_LOOP(efa)->prev;
+          MLoopUV *luv_prev = BM_ELEM_CD_GET_VOID_P(l_prev, cd_loop_uv_offset);
+
+          BM_ITER_ELEM (l, &liter, efa, BM_LOOPS_OF_FACE) {
+            MLoopUV *luv = BM_ELEM_CD_GET_VOID_P(l, cd_loop_uv_offset);
+            if (do_lasso_select_mesh_uv_is_edge_inside(
+                    region, &rect, mcoords, mcoords_len, luv->uv, luv_prev->uv)) {
+              uvedit_edge_select_set_with_sticky(
+                  scene, em, l_prev, select, false, cd_loop_uv_offset);
+              changed = true;
+            }
+            l_prev = l;
+            luv_prev = luv;
+          }
+        }
+      }
     }
     else { /* Vert Selection. */
       BM_mesh_elem_hflag_disable_all(em->bm, BM_VERT, BM_ELEM_TAG, false);
@@ -5154,7 +5223,7 @@ static void uv_isolate_selected_islands(const Scene *scene,
   BLI_assert((scene->toolsettings->uv_flag & UV_SYNC_SELECTION) == 0);
   BMFace *efa;
   BMIter iter, liter;
-  UvElementMap *elementmap = BM_uv_element_map_create(em->bm, scene, true, false, false, true);
+  UvElementMap *elementmap = BM_uv_element_map_create(em->bm, scene, false, false, true);
   if (elementmap == NULL) {
     return;
   }
diff --git a/source/blender/editors/uvedit/uvedit_smart_stitch.c b/source/blender/editors/uvedit/uvedit_smart_stitch.c
index 55e44607f6f..579674930a6 100644
--- a/source/blender/editors/uvedit/uvedit_smart_stitch.c
+++ b/source/blender/editors/uvedit/uvedit_smart_stitch.c
@@ -1902,15 +1902,7 @@ static StitchState *stitch_init(bContext *C,
    * for stitch this isn't useful behavior, see T86924. */
   const int selectmode_orig = scene->toolsettings->selectmode;
   scene->toolsettings->selectmode = SCE_SELECT_VERTEX;
-
-  /* in uv synch selection, all uv's are visible */
-  if (ts->uv_flag & UV_SYNC_SELECTION) {
-    state->element_map = BM_uv_element_map_create(state->em->bm, scene, false, false, true, true);
-  }
-  else {
-    state->element_map = BM_uv_element_map_create(state->em->bm, scene, true, false, true, true);
-  }
-
+  state->element_map = BM_uv_element_map_create(state->em->bm, scene, false, true, true);
   scene->toolsettings->selectmode = selectmode_orig;
 
   if (!state->element_map) {
diff --git a/source/blender/editors/uvedit/uvedit_unwrap_ops.c b/source/blender/editors/uvedit/uvedit_unwrap_ops.c
index ae81aaffeb2..2c7ad012dd2 100644
--- a/source/blender/editors/uvedit/uvedit_unwrap_ops.c
+++ b/source/blender/editors/uvedit/uvedit_unwrap_ops.c
@@ -1191,7 +1191,7 @@ void UV_OT_pack_islands(wmOperatorType *ot)
 /** \name Average UV Islands Scale Operator
  * \{ */
 
-static int average_islands_scale_exec(bContext *C, wmOperator *UNUSED(op))
+static int average_islands_scale_exec(bContext *C, wmOperator *op)
 {
   const Scene *scene = CTX_data_scene(C);
   ViewLayer *view_layer = CTX_data_view_layer(C);
@@ -1215,8 +1215,12 @@ static int average_islands_scale_exec(bContext *C, wmOperator *UNUSED(op))
     return OPERATOR_CANCELLED;
   }
 
+  /* RNA props */
+  const bool scale_uv = RNA_boolean_get(op->ptr, "scale_uv");
+  const bool shear = RNA_boolean_get(op->ptr, "shear");
+
   ParamHandle *handle = construct_param_handle_multi(scene, objects, objects_len, &options);
-  GEO_uv_parametrizer_average(handle, false);
+  GEO_uv_parametrizer_average(handle, false, scale_uv, shear);
   GEO_uv_parametrizer_flush(handle);
   GEO_uv_parametrizer_delete(handle);
 
@@ -1247,6 +1251,10 @@ void UV_OT_average_islands_scale(wmOperatorType *ot)
   /* api callbacks */
   ot->exec = average_islands_scale_exec;
   ot->poll = ED_operator_uvedit;
+
+  /* properties */
+  RNA_def_boolean(ot->srna, "scale_uv", false, "Non-Uniform", "Scale U and V independently");
+  RNA_def_boolean(ot->srna, "shear", false, "Shear", "Reduce shear within islands");
 }
 
 /** \} */
@@ -1845,7 +1853,7 @@ static void uvedit_unwrap(const Scene *scene,
                                  result_info ? &result_info->count_failed : NULL);
   GEO_uv_parametrizer_lscm_end(handle);
 
-  GEO_uv_parametrizer_average(handle, true);
+  GEO_uv_parametrizer_average(handle, true, false, false);
 
   GEO_uv_parametrizer_flush(handle);
 
@@ -1907,7 +1915,7 @@ static int unwrap_exec(bContext *C, wmOperator *op)
 
   UnwrapOptions options = {
       .topology_from_uvs = false,
-      .only_selected_faces = false,
+      .only_selected_faces = true,
       .only_selected_uvs = false,
       .fill_holes = RNA_boolean_get(op->ptr, "fill_holes"),
       .correct_aspect = RNA_boolean_get(op->ptr, "correct_aspect"),
@@ -1918,7 +1926,6 @@ static int unwrap_exec(bContext *C, wmOperator *op)
   if (CTX_wm_space_image(C)) {
     /* Inside the UV Editor, only unwrap selected UVs. */
     options.only_selected_uvs = true;
-    options.only_selected_faces = true;
     options.pin_unselected = true;
   }
 
diff --git a/source/blender/geometry/CMakeLists.txt b/source/blender/geometry/CMakeLists.txt
index df66a806c16..da83d9e8957 100644
--- a/source/blender/geometry/CMakeLists.txt
+++ b/source/blender/geometry/CMakeLists.txt
@@ -16,6 +16,7 @@ set(INC
 
 set(SRC
   intern/add_curves_on_mesh.cc
+  intern/fillet_curves.cc
   intern/mesh_merge_by_distance.cc
   intern/mesh_primitive_cuboid.cc
   intern/mesh_to_curve_convert.cc
@@ -29,6 +30,7 @@ set(SRC
   intern/uv_parametrizer.c
 
   GEO_add_curves_on_mesh.hh
+  GEO_fillet_curves.hh
   GEO_mesh_merge_by_distance.hh
   GEO_mesh_primitive_cuboid.hh
   GEO_mesh_to_curve.hh
diff --git a/source/blender/geometry/GEO_fillet_curves.hh b/source/blender/geometry/GEO_fillet_curves.hh
new file mode 100644
index 00000000000..1f832f8b6cc
--- /dev/null
+++ b/source/blender/geometry/GEO_fillet_curves.hh
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#pragma once
+
+#include "BLI_function_ref.hh"
+#include "BLI_index_mask.hh"
+
+#include "BKE_curves.hh"
+
+namespace blender::geometry {
+
+bke::CurvesGeometry fillet_curves_poly(const bke::CurvesGeometry &src_curves,
+                                       IndexMask curve_selection,
+                                       const VArray<float> &radius,
+                                       const VArray<int> &counts,
+                                       bool limit_radius);
+
+bke::CurvesGeometry fillet_curves_bezier(const bke::CurvesGeometry &src_curves,
+                                         IndexMask curve_selection,
+                                         const VArray<float> &radius,
+                                         bool limit_radius);
+
+}  // namespace blender::geometry
diff --git a/source/blender/geometry/GEO_mesh_to_curve.hh b/source/blender/geometry/GEO_mesh_to_curve.hh
index c480e4178cf..f619aaff217 100644
--- a/source/blender/geometry/GEO_mesh_to_curve.hh
+++ b/source/blender/geometry/GEO_mesh_to_curve.hh
@@ -1,12 +1,12 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
+#pragma once
+
 #include "BLI_index_mask.hh"
 
-#pragma once
+#include "BKE_curves.hh"
 
 struct Mesh;
-struct Curves;
-class MeshComponent;
 
 /** \file
  * \ingroup geo
@@ -15,10 +15,10 @@ class MeshComponent;
 namespace blender::geometry {
 
 /**
- * Convert the mesh into one or many poly splines. Since splines cannot have branches,
- * intersections of more than three edges will become breaks in splines. Attributes that
+ * Convert the mesh into one or many poly curves. Since curves cannot have branches,
+ * intersections of more than three edges will become breaks in curves. Attributes that
  * are not built-in on meshes and not curves are transferred to the result curve.
  */
-Curves *mesh_to_curve_convert(const MeshComponent &mesh_component, const IndexMask selection);
+bke::CurvesGeometry mesh_to_curve_convert(const Mesh &mesh, const IndexMask selection);
 
 }  // namespace blender::geometry
diff --git a/source/blender/geometry/GEO_set_curve_type.hh b/source/blender/geometry/GEO_set_curve_type.hh
index 6a75450006b..f38e63b1fc8 100644
--- a/source/blender/geometry/GEO_set_curve_type.hh
+++ b/source/blender/geometry/GEO_set_curve_type.hh
@@ -2,17 +2,10 @@
 
 #pragma once
 
-#include "DNA_curves_types.h"
-
 #include "BLI_function_ref.hh"
 #include "BLI_index_mask.hh"
 
-struct Curves;
-class CurveComponent;
-
-namespace blender::bke {
-class CurvesGeometry;
-}
+#include "BKE_curves.hh"
 
 namespace blender::geometry {
 
@@ -27,14 +20,13 @@ namespace blender::geometry {
  */
 bool try_curves_conversion_in_place(IndexMask selection,
                                     CurveType dst_type,
-                                    FunctionRef<Curves &()> get_writable_curves_fn);
+                                    FunctionRef<bke::CurvesGeometry &()> get_writable_curves_fn);
 
 /**
  * Change the types of the selected curves, potentially changing the total point count.
  */
-Curves *convert_curves(const CurveComponent &src_component,
-                       const bke::CurvesGeometry &src_curves,
-                       IndexMask selection,
-                       CurveType dst_type);
+bke::CurvesGeometry convert_curves(const bke::CurvesGeometry &src_curves,
+                                   IndexMask selection,
+                                   CurveType dst_type);
 
 }  // namespace blender::geometry
diff --git a/source/blender/geometry/GEO_subdivide_curves.hh b/source/blender/geometry/GEO_subdivide_curves.hh
index 66c2eb53496..ba55118baa4 100644
--- a/source/blender/geometry/GEO_subdivide_curves.hh
+++ b/source/blender/geometry/GEO_subdivide_curves.hh
@@ -4,11 +4,10 @@
 
 #include "BLI_function_ref.hh"
 #include "BLI_index_mask.hh"
+#include "BLI_virtual_array.hh"
 
 #include "BKE_curves.hh"
 
-class CurveComponent;
-
 namespace blender::geometry {
 
 /**
@@ -18,9 +17,8 @@ namespace blender::geometry {
  *
  * \param selection: A selection of curves to consider when subdividing.
  */
-Curves *subdivide_curves(const CurveComponent &src_component,
-                         const bke::CurvesGeometry &src_curves,
-                         IndexMask selection,
-                         const VArray<int> &cuts);
+bke::CurvesGeometry subdivide_curves(const bke::CurvesGeometry &src_curves,
+                                     IndexMask selection,
+                                     const VArray<int> &cuts);
 
 }  // namespace blender::geometry
diff --git a/source/blender/geometry/GEO_uv_parametrizer.h b/source/blender/geometry/GEO_uv_parametrizer.h
index 2181f95945e..5285aefbd4c 100644
--- a/source/blender/geometry/GEO_uv_parametrizer.h
+++ b/source/blender/geometry/GEO_uv_parametrizer.h
@@ -103,7 +103,10 @@ void GEO_uv_parametrizer_pack(ParamHandle *handle,
 /** \name Average area for all charts
  * \{ */
 
-void GEO_uv_parametrizer_average(ParamHandle *handle, bool ignore_pinned);
+void GEO_uv_parametrizer_average(ParamHandle *handle,
+                                 bool ignore_pinned,
+                                 bool scale_uv,
+                                 bool shear);
 
 /** \} */
 
diff --git a/source/blender/geometry/intern/add_curves_on_mesh.cc b/source/blender/geometry/intern/add_curves_on_mesh.cc
index 34551bd474f..a69073af207 100644
--- a/source/blender/geometry/intern/add_curves_on_mesh.cc
+++ b/source/blender/geometry/intern/add_curves_on_mesh.cc
@@ -1,7 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
+#include "BLI_length_parameterize.hh"
+
+#include "BKE_attribute_math.hh"
 #include "BKE_mesh_sample.hh"
-#include "BKE_spline.hh"
 
 #include "GEO_add_curves_on_mesh.hh"
 
@@ -145,16 +147,16 @@ static void interpolate_position_with_interpolation(CurvesGeometry &curves,
   const int added_curves_num = root_positions_cu.size();
 
   threading::parallel_for(IndexRange(added_curves_num), 256, [&](const IndexRange range) {
-    for (const int i : range) {
-      const NeighborCurves &neighbors = neighbors_per_curve[i];
-      const int curve_i = old_curves_num + i;
+    for (const int added_curve_i : range) {
+      const NeighborCurves &neighbors = neighbors_per_curve[added_curve_i];
+      const int curve_i = old_curves_num + added_curve_i;
       const IndexRange points = curves.points_for_curve(curve_i);
 
-      const float length_cu = new_lengths_cu[i];
-      const float3 &normal_su = new_normals_su[i];
+      const float length_cu = new_lengths_cu[added_curve_i];
+      const float3 &normal_su = new_normals_su[added_curve_i];
       const float3 normal_cu = math::normalize(surface_to_curves_normal_mat * normal_su);
 
-      const float3 &root_cu = root_positions_cu[i];
+      const float3 &root_cu = root_positions_cu[added_curve_i];
 
       if (neighbors.is_empty()) {
         /* If there are no neighbors, just make a straight line. */
@@ -197,30 +199,41 @@ static void interpolate_position_with_interpolation(CurvesGeometry &curves,
         const IndexRange neighbor_points = curves.points_for_curve(neighbor_curve_i);
         const float3 &neighbor_root_cu = positions_cu[neighbor_points[0]];
 
-        /* Use a temporary #PolySpline, because that's the easiest way to resample an
-         * existing curve right now. Resampling is necessary if the length of the new curve
-         * does not match the length of the neighbors or the number of handle points is
-         * different. */
-        PolySpline neighbor_spline;
-        neighbor_spline.resize(neighbor_points.size());
-        neighbor_spline.positions().copy_from(positions_cu.slice(neighbor_points));
-        neighbor_spline.mark_cache_invalid();
+        /* Sample the positions on neighbors and mix them into the final positions of the curve.
+         * Resampling is necessary if the length of the new curve does not match the length of the
+         * neighbors or the number of handle points is different.
+         *
+         * TODO: The lengths can be cached so they aren't recomputed if a curve is a neighbor for
+         * multiple new curves. Also, allocations could be avoided by reusing some arrays. */
+
+        const Span<float3> neighbor_positions_cu = positions_cu.slice(neighbor_points);
+        if (neighbor_positions_cu.size() == 1) {
+          /* Skip interpolating positions from neighbors with only one point. */
+          continue;
+        }
+        Array<float, 32> lengths(length_parameterize::segments_num(neighbor_points.size(), false));
+        length_parameterize::accumulate_lengths<float3>(neighbor_positions_cu, false, lengths);
+        const float neighbor_length_cu = lengths.last();
 
-        const float neighbor_length_cu = neighbor_spline.length();
+        Array<float, 32> sample_lengths(points.size());
         const float length_factor = std::min(1.0f, length_cu / neighbor_length_cu);
-
         const float resample_factor = (1.0f / (points.size() - 1.0f)) * length_factor;
-        for (const int j : IndexRange(points.size())) {
-          const Spline::LookupResult lookup = neighbor_spline.lookup_evaluated_factor(
-              j * resample_factor);
-          const float index_factor = lookup.evaluated_index + lookup.factor;
-          float3 p;
-          neighbor_spline.sample_with_index_factors<float3>(
-              neighbor_spline.positions(), {&index_factor, 1}, {&p, 1});
-          const float3 relative_coord = p - neighbor_root_cu;
-          float3 rotated_relative_coord = relative_coord;
+        for (const int i : sample_lengths.index_range()) {
+          sample_lengths[i] = i * resample_factor * neighbor_length_cu;
+        }
+
+        Array<int, 32> indices(points.size());
+        Array<float, 32> factors(points.size());
+        length_parameterize::sample_at_lengths(lengths, sample_lengths, indices, factors);
+
+        for (const int i : IndexRange(points.size())) {
+          const float3 sample_cu = math::interpolate(neighbor_positions_cu[indices[i]],
+                                                     neighbor_positions_cu[indices[i] + 1],
+                                                     factors[i]);
+          const float3 relative_to_root_cu = sample_cu - neighbor_root_cu;
+          float3 rotated_relative_coord = relative_to_root_cu;
           mul_m3_v3(normal_rotation_cu, rotated_relative_coord);
-          positions_cu[points[j]] += neighbor.weight * rotated_relative_coord;
+          positions_cu[points[i]] += neighbor.weight * rotated_relative_coord;
         }
       }
     }
diff --git a/source/blender/geometry/intern/fillet_curves.cc b/source/blender/geometry/intern/fillet_curves.cc
new file mode 100644
index 00000000000..2cca91f40ae
--- /dev/null
+++ b/source/blender/geometry/intern/fillet_curves.cc
@@ -0,0 +1,561 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "BKE_attribute_math.hh"
+#include "BKE_curves.hh"
+#include "BKE_curves_utils.hh"
+#include "BKE_geometry_set.hh"
+
+#include "BLI_devirtualize_parameters.hh"
+#include "BLI_math_geom.h"
+#include "BLI_math_rotation.hh"
+#include "BLI_task.hh"
+
+#include "GEO_fillet_curves.hh"
+
+namespace blender::geometry {
+
+/**
+ * Return a range used to retrieve values from an array of values stored per point, but with an
+ * extra element at the end of each curve. This is useful for offsets within curves, where it is
+ * convenient to store the first 0 and have the last offset be the total result curve size.
+ */
+static IndexRange curve_dst_offsets(const IndexRange points, const int curve_index)
+{
+  return {curve_index + points.start(), points.size() + 1};
+}
+
+template<typename T>
+static void threaded_slice_fill(const Span<T> src, const Span<int> offsets, MutableSpan<T> dst)
+{
+  threading::parallel_for(src.index_range(), 512, [&](IndexRange range) {
+    for (const int i : range) {
+      dst.slice(bke::offsets_to_range(offsets, i)).fill(src[i]);
+    }
+  });
+}
+
+template<typename T>
+static void duplicate_fillet_point_data(const bke::CurvesGeometry &src_curves,
+                                        const bke::CurvesGeometry &dst_curves,
+                                        const IndexMask curve_selection,
+                                        const Span<int> point_offsets,
+                                        const Span<T> src,
+                                        MutableSpan<T> dst)
+{
+  threading::parallel_for(curve_selection.index_range(), 512, [&](IndexRange range) {
+    for (const int curve_i : curve_selection.slice(range)) {
+      const IndexRange src_points = src_curves.points_for_curve(curve_i);
+      const IndexRange dst_points = dst_curves.points_for_curve(curve_i);
+      const Span<int> offsets = point_offsets.slice(curve_dst_offsets(src_points, curve_i));
+      threaded_slice_fill(src.slice(src_points), offsets, dst.slice(dst_points));
+    }
+  });
+}
+
+static void duplicate_fillet_point_data(const bke::CurvesGeometry &src_curves,
+                                        const bke::CurvesGeometry &dst_curves,
+                                        const IndexMask selection,
+                                        const Span<int> point_offsets,
+                                        const GSpan src,
+                                        GMutableSpan dst)
+{
+  attribute_math::convert_to_static_type(dst.type(), [&](auto dummy) {
+    using T = decltype(dummy);
+    duplicate_fillet_point_data(
+        src_curves, dst_curves, selection, point_offsets, src.typed<T>(), dst.typed<T>());
+  });
+}
+
+static void calculate_result_offsets(const bke::CurvesGeometry &src_curves,
+                                     const IndexMask selection,
+                                     const Span<IndexRange> unselected_ranges,
+                                     const VArray<float> &radii,
+                                     const VArray<int> &counts,
+                                     const Span<bool> cyclic,
+                                     MutableSpan<int> dst_curve_offsets,
+                                     MutableSpan<int> dst_point_offsets)
+{
+  /* Fill the offsets array with the curve point counts, then accumulate them to form offsets. */
+  bke::curves::fill_curve_counts(src_curves, unselected_ranges, dst_curve_offsets);
+  threading::parallel_for(selection.index_range(), 512, [&](IndexRange range) {
+    for (const int curve_i : selection.slice(range)) {
+      const IndexRange src_points = src_curves.points_for_curve(curve_i);
+      const IndexRange offsets_range = curve_dst_offsets(src_points, curve_i);
+
+      MutableSpan<int> point_offsets = dst_point_offsets.slice(offsets_range);
+      MutableSpan<int> point_counts = point_offsets.drop_back(1);
+
+      counts.materialize_compressed(src_points, point_counts);
+      for (int &count : point_counts) {
+        /* Make sure the number of cuts is greater than zero and add one for the existing point. */
+        count = std::max(count, 0) + 1;
+      }
+      if (!cyclic[curve_i]) {
+        /* Endpoints on non-cyclic curves cannot be filleted. */
+        point_counts.first() = 1;
+        point_counts.last() = 1;
+      }
+      /* Implicitly "deselect" points with zero radius. */
+      devirtualize_varray(radii, [&](const auto radii) {
+        for (const int i : IndexRange(src_points.size())) {
+          if (radii[i] == 0.0f) {
+            point_counts[i] = 1;
+          }
+        }
+      });
+
+      bke::curves::accumulate_counts_to_offsets(point_offsets);
+
+      dst_curve_offsets[curve_i] = point_offsets.last();
+    }
+  });
+  bke::curves::accumulate_counts_to_offsets(dst_curve_offsets);
+}
+
+static void calculate_directions(const Span<float3> positions, MutableSpan<float3> directions)
+{
+  for (const int i : positions.index_range().drop_back(1)) {
+    directions[i] = math::normalize(positions[i + 1] - positions[i]);
+  }
+  directions.last() = math::normalize(positions.first() - positions.last());
+}
+
+static void calculate_angles(const Span<float3> directions, MutableSpan<float> angles)
+{
+  angles.first() = M_PI - angle_v3v3(-directions.last(), directions.first());
+  for (const int i : directions.index_range().drop_front(1)) {
+    angles[i] = M_PI - angle_v3v3(-directions[i - 1], directions[i]);
+  }
+}
+
+/**
+ * Find the portion of the previous and next segments used by the current and next point fillets.
+ * If more than the total length of the segment would be used, scale the current point's radius
+ * just enough to make the two points meet in the middle.
+ */
+static float limit_radius(const float3 &position_prev,
+                          const float3 &position,
+                          const float3 &position_next,
+                          const float angle_prev,
+                          const float angle,
+                          const float angle_next,
+                          const float radius_prev,
+                          const float radius,
+                          const float radius_next)
+{
+  const float displacement = radius * std::tan(angle / 2.0f);
+
+  const float displacement_prev = radius_prev * std::tan(angle_prev / 2.0f);
+  const float segment_length_prev = math::distance(position, position_prev);
+  const float total_displacement_prev = displacement_prev + displacement;
+  const float factor_prev = std::clamp(segment_length_prev / total_displacement_prev, 0.0f, 1.0f);
+
+  const float displacement_next = radius_next * std::tan(angle_next / 2.0f);
+  const float segment_length_next = math::distance(position, position_next);
+  const float total_displacement_next = displacement_next + displacement;
+  const float factor_next = std::clamp(segment_length_next / total_displacement_next, 0.0f, 1.0f);
+
+  return radius * std::min(factor_prev, factor_next);
+}
+
+static void limit_radii(const Span<float3> positions,
+                        const Span<float> angles,
+                        const Span<float> radii,
+                        const bool cyclic,
+                        MutableSpan<float> radii_clamped)
+{
+  if (cyclic) {
+    /* First point. */
+    radii_clamped.first() = limit_radius(positions.last(),
+                                         positions.first(),
+                                         positions[1],
+                                         angles.last(),
+                                         angles.first(),
+                                         angles[1],
+                                         radii.last(),
+                                         radii.first(),
+                                         radii[1]);
+    /* All middle points. */
+    for (const int i : positions.index_range().drop_back(1).drop_front(1)) {
+      const int i_prev = i - 1;
+      const int i_next = i + 1;
+      radii_clamped[i] = limit_radius(positions[i_prev],
+                                      positions[i],
+                                      positions[i_next],
+                                      angles[i_prev],
+                                      angles[i],
+                                      angles[i_next],
+                                      radii[i_prev],
+                                      radii[i],
+                                      radii[i_next]);
+    }
+    /* Last point. */
+    radii_clamped.last() = limit_radius(positions.last(1),
+                                        positions.last(),
+                                        positions.first(),
+                                        angles.last(1),
+                                        angles.last(),
+                                        angles.first(),
+                                        radii.last(1),
+                                        radii.last(),
+                                        radii.first());
+  }
+  else {
+    const int i_last = positions.index_range().last();
+    /* First point. */
+    radii_clamped.first() = 0.0f;
+    /* All middle points. */
+    for (const int i : positions.index_range().drop_back(1).drop_front(1)) {
+      const int i_prev = i - 1;
+      const int i_next = i + 1;
+      /* Use a zero radius for the first and last points, because they don't have fillets.
+       * This logic could potentially be unrolled, but it doesn't seem worth it. */
+      const float radius_prev = i_prev == 0 ? 0.0f : radii[i_prev];
+      const float radius_next = i_next == i_last ? 0.0f : radii[i_next];
+      radii_clamped[i] = limit_radius(positions[i_prev],
+                                      positions[i],
+                                      positions[i_next],
+                                      angles[i_prev],
+                                      angles[i],
+                                      angles[i_next],
+                                      radius_prev,
+                                      radii[i],
+                                      radius_next);
+    }
+    /* Last point. */
+    radii_clamped.last() = 0.0f;
+  }
+}
+
+static void calculate_fillet_positions(const Span<float3> src_positions,
+                                       const Span<float> angles,
+                                       const Span<float> radii,
+                                       const Span<float3> directions,
+                                       const Span<int> dst_offsets,
+                                       MutableSpan<float3> dst)
+{
+  const int i_src_last = src_positions.index_range().last();
+  threading::parallel_for(src_positions.index_range(), 512, [&](IndexRange range) {
+    for (const int i_src : range) {
+      const IndexRange arc = bke::offsets_to_range(dst_offsets, i_src);
+      const float3 &src = src_positions[i_src];
+      if (arc.size() == 1) {
+        dst[arc.first()] = src;
+        continue;
+      }
+
+      const int i_src_prev = i_src == 0 ? i_src_last : i_src - 1;
+      const float angle = angles[i_src];
+      const float radius = radii[i_src];
+      const float displacement = radius * std::tan(angle / 2.0f);
+      const float3 prev_dir = -directions[i_src_prev];
+      const float3 &next_dir = directions[i_src];
+      const float3 arc_start = src + prev_dir * displacement;
+      const float3 arc_end = src + next_dir * displacement;
+
+      dst[arc.first()] = arc_start;
+      dst[arc.last()] = arc_end;
+
+      const IndexRange middle = arc.drop_front(1).drop_back(1);
+      if (middle.is_empty()) {
+        continue;
+      }
+
+      const float3 axis = -math::normalize(math::cross(prev_dir, next_dir));
+      const float3 center_direction = math::normalize(math::midpoint(next_dir, prev_dir));
+      const float distance_to_center = std::sqrt(pow2f(radius) + pow2f(displacement));
+      const float3 center = src + center_direction * distance_to_center;
+
+      /* Rotate each middle fillet point around the center. */
+      const float segment_angle = angle / (middle.size() + 1);
+      for (const int i : IndexRange(middle.size())) {
+        const int point_i = middle[i];
+        dst[point_i] = math::rotate_around_axis(arc_start, center, axis, segment_angle * (i + 1));
+      }
+    }
+  });
+}
+
+/**
+ * Set handles for the "Bezier" mode where we rely on setting the inner handles to approximate a
+ * circular arc. The outer (previous and next) handles outside the result fillet segment are set
+ * to vector handles.
+ */
+static void calculate_bezier_handles_bezier_mode(const Span<float3> src_handles_l,
+                                                 const Span<float3> src_handles_r,
+                                                 const Span<int8_t> src_types_l,
+                                                 const Span<int8_t> src_types_r,
+                                                 const Span<float> angles,
+                                                 const Span<float> radii,
+                                                 const Span<float3> directions,
+                                                 const Span<int> dst_offsets,
+                                                 const Span<float3> dst_positions,
+                                                 MutableSpan<float3> dst_handles_l,
+                                                 MutableSpan<float3> dst_handles_r,
+                                                 MutableSpan<int8_t> dst_types_l,
+                                                 MutableSpan<int8_t> dst_types_r)
+{
+  const int i_src_last = src_handles_l.index_range().last();
+  const int i_dst_last = dst_positions.index_range().last();
+  threading::parallel_for(src_handles_l.index_range(), 512, [&](IndexRange range) {
+    for (const int i_src : range) {
+      const IndexRange arc = bke::offsets_to_range(dst_offsets, i_src);
+      if (arc.size() == 1) {
+        dst_handles_l[arc.first()] = src_handles_l[i_src];
+        dst_handles_r[arc.first()] = src_handles_r[i_src];
+        dst_types_l[arc.first()] = src_types_l[i_src];
+        dst_types_r[arc.first()] = src_types_r[i_src];
+        continue;
+      }
+      BLI_assert(arc.size() == 2);
+      const int i_dst_a = arc.first();
+      const int i_dst_b = arc.last();
+
+      const int i_src_prev = i_src == 0 ? i_src_last : i_src - 1;
+      const float angle = angles[i_src];
+      const float radius = radii[i_src];
+      const float3 prev_dir = -directions[i_src_prev];
+      const float3 &next_dir = directions[i_src];
+
+      const float3 &arc_start = dst_positions[arc.first()];
+      const float3 &arc_end = dst_positions[arc.last()];
+
+      /* Calculate the point's handles on the outside of the fillet segment,
+       * connecting to the next or previous result points. */
+      const int i_dst_prev = i_dst_a == 0 ? i_dst_last : i_dst_a - 1;
+      const int i_dst_next = i_dst_b == i_dst_last ? 0 : i_dst_b + 1;
+      dst_handles_l[i_dst_a] = bke::curves::bezier::calculate_vector_handle(
+          dst_positions[i_dst_a], dst_positions[i_dst_prev]);
+      dst_handles_r[i_dst_b] = bke::curves::bezier::calculate_vector_handle(
+          dst_positions[i_dst_b], dst_positions[i_dst_next]);
+      dst_types_l[i_dst_a] = BEZIER_HANDLE_VECTOR;
+      dst_types_r[i_dst_b] = BEZIER_HANDLE_VECTOR;
+
+      /* The inner handles are aligned with the aligned with the outer vector
+       * handles, but have a specific length to best approximate a circle. */
+      const float handle_length = (4.0f / 3.0f) * radius * std::tan(angle / 4.0f);
+      dst_handles_r[i_dst_a] = arc_start - prev_dir * handle_length;
+      dst_handles_l[i_dst_b] = arc_end - next_dir * handle_length;
+      dst_types_r[i_dst_a] = BEZIER_HANDLE_ALIGN;
+      dst_types_l[i_dst_b] = BEZIER_HANDLE_ALIGN;
+    }
+  });
+}
+
+/**
+ * In the poly fillet mode, all the inner handles are set to vector handles, along with the "outer"
+ * (previous and next) handles at each fillet.
+ */
+static void calculate_bezier_handles_poly_mode(const Span<float3> src_handles_l,
+                                               const Span<float3> src_handles_r,
+                                               const Span<int8_t> src_types_l,
+                                               const Span<int8_t> src_types_r,
+                                               const Span<int> dst_offsets,
+                                               const Span<float3> dst_positions,
+                                               MutableSpan<float3> dst_handles_l,
+                                               MutableSpan<float3> dst_handles_r,
+                                               MutableSpan<int8_t> dst_types_l,
+                                               MutableSpan<int8_t> dst_types_r)
+{
+  const int i_dst_last = dst_positions.index_range().last();
+  threading::parallel_for(src_handles_l.index_range(), 512, [&](IndexRange range) {
+    for (const int i_src : range) {
+      const IndexRange arc = bke::offsets_to_range(dst_offsets, i_src);
+      if (arc.size() == 1) {
+        dst_handles_l[arc.first()] = src_handles_l[i_src];
+        dst_handles_r[arc.first()] = src_handles_r[i_src];
+        dst_types_l[arc.first()] = src_types_l[i_src];
+        dst_types_r[arc.first()] = src_types_r[i_src];
+        continue;
+      }
+
+      /* The fillet's next and previous handles are vector handles, as are the inner handles. */
+      dst_types_l.slice(arc).fill(BEZIER_HANDLE_VECTOR);
+      dst_types_r.slice(arc).fill(BEZIER_HANDLE_VECTOR);
+
+      /* Calculate the point's handles on the outside of the fillet segment. This point
+       * won't be selected for a fillet if it is the first or last in a non-cyclic curve. */
+
+      const int i_dst_prev = arc.first() == 0 ? i_dst_last : arc.one_before_start();
+      const int i_dst_next = arc.last() == i_dst_last ? 0 : arc.one_after_last();
+      dst_handles_l[arc.first()] = bke::curves::bezier::calculate_vector_handle(
+          dst_positions[arc.first()], dst_positions[i_dst_prev]);
+      dst_handles_r[arc.last()] = bke::curves::bezier::calculate_vector_handle(
+          dst_positions[arc.last()], dst_positions[i_dst_next]);
+
+      /* Set the values for the inner handles. */
+      const IndexRange middle = arc.drop_front(1).drop_back(1);
+      for (const int i : middle) {
+        dst_handles_r[i] = bke::curves::bezier::calculate_vector_handle(dst_positions[i],
+                                                                        dst_positions[i - 1]);
+        dst_handles_l[i] = bke::curves::bezier::calculate_vector_handle(dst_positions[i],
+                                                                        dst_positions[i + 1]);
+      }
+    }
+  });
+}
+
+static bke::CurvesGeometry fillet_curves(const bke::CurvesGeometry &src_curves,
+                                         const IndexMask curve_selection,
+                                         const VArray<float> &radius_input,
+                                         const VArray<int> &counts,
+                                         const bool limit_radius,
+                                         const bool use_bezier_mode)
+{
+  const Vector<IndexRange> unselected_ranges = curve_selection.extract_ranges_invert(
+      src_curves.curves_range());
+
+  const Span<float3> positions = src_curves.positions();
+  const VArraySpan<bool> cyclic{src_curves.cyclic()};
+  const bke::AttributeAccessor src_attributes = src_curves.attributes();
+
+  bke::CurvesGeometry dst_curves = bke::curves::copy_only_curve_domain(src_curves);
+  /* Stores the offset of every result point for every original point.
+   * The extra length is used in order to store an extra zero for every curve. */
+  Array<int> dst_point_offsets(src_curves.points_num() + src_curves.curves_num());
+  calculate_result_offsets(src_curves,
+                           curve_selection,
+                           unselected_ranges,
+                           radius_input,
+                           counts,
+                           cyclic,
+                           dst_curves.offsets_for_write(),
+                           dst_point_offsets);
+  const Span<int> point_offsets = dst_point_offsets.as_span();
+
+  dst_curves.resize(dst_curves.offsets().last(), dst_curves.curves_num());
+  bke::MutableAttributeAccessor dst_attributes = dst_curves.attributes_for_write();
+  MutableSpan<float3> dst_positions = dst_curves.positions_for_write();
+
+  VArraySpan<int8_t> src_types_l;
+  VArraySpan<int8_t> src_types_r;
+  Span<float3> src_handles_l;
+  Span<float3> src_handles_r;
+  MutableSpan<int8_t> dst_types_l;
+  MutableSpan<int8_t> dst_types_r;
+  MutableSpan<float3> dst_handles_l;
+  MutableSpan<float3> dst_handles_r;
+  if (src_curves.has_curve_with_type(CURVE_TYPE_BEZIER)) {
+    src_types_l = src_curves.handle_types_left();
+    src_types_r = src_curves.handle_types_right();
+    src_handles_l = src_curves.handle_positions_left();
+    src_handles_r = src_curves.handle_positions_right();
+
+    dst_types_l = dst_curves.handle_types_left_for_write();
+    dst_types_r = dst_curves.handle_types_right_for_write();
+    dst_handles_l = dst_curves.handle_positions_left_for_write();
+    dst_handles_r = dst_curves.handle_positions_right_for_write();
+  }
+
+  threading::parallel_for(curve_selection.index_range(), 512, [&](IndexRange range) {
+    Array<float3> directions;
+    Array<float> angles;
+    Array<float> radii;
+    Array<float> input_radii_buffer;
+
+    for (const int curve_i : curve_selection.slice(range)) {
+      const IndexRange src_points = src_curves.points_for_curve(curve_i);
+      const Span<int> offsets = point_offsets.slice(curve_dst_offsets(src_points, curve_i));
+      const IndexRange dst_points = dst_curves.points_for_curve(curve_i);
+      const Span<float3> src_positions = positions.slice(src_points);
+
+      directions.reinitialize(src_points.size());
+      calculate_directions(src_positions, directions);
+
+      angles.reinitialize(src_points.size());
+      calculate_angles(directions, angles);
+
+      radii.reinitialize(src_points.size());
+      if (limit_radius) {
+        input_radii_buffer.reinitialize(src_points.size());
+        radius_input.materialize_compressed(src_points, input_radii_buffer);
+        limit_radii(src_positions, angles, input_radii_buffer, cyclic[curve_i], radii);
+      }
+      else {
+        radius_input.materialize_compressed(src_points, radii);
+      }
+
+      calculate_fillet_positions(positions.slice(src_points),
+                                 angles,
+                                 radii,
+                                 directions,
+                                 offsets,
+                                 dst_positions.slice(dst_points));
+
+      if (src_curves.has_curve_with_type(CURVE_TYPE_BEZIER)) {
+        if (use_bezier_mode) {
+          calculate_bezier_handles_bezier_mode(src_handles_l.slice(src_points),
+                                               src_handles_r.slice(src_points),
+                                               src_types_l.slice(src_points),
+                                               src_types_r.slice(src_points),
+                                               angles,
+                                               radii,
+                                               directions,
+                                               offsets,
+                                               dst_positions.slice(dst_points),
+                                               dst_handles_l.slice(dst_points),
+                                               dst_handles_r.slice(dst_points),
+                                               dst_types_l.slice(dst_points),
+                                               dst_types_r.slice(dst_points));
+        }
+        else {
+          calculate_bezier_handles_poly_mode(src_handles_l.slice(src_points),
+                                             src_handles_r.slice(src_points),
+                                             src_types_l.slice(src_points),
+                                             src_types_r.slice(src_points),
+                                             offsets,
+                                             dst_positions.slice(dst_points),
+                                             dst_handles_l.slice(dst_points),
+                                             dst_handles_r.slice(dst_points),
+                                             dst_types_l.slice(dst_points),
+                                             dst_types_r.slice(dst_points));
+        }
+      }
+    }
+  });
+
+  for (auto &attribute : bke::retrieve_attributes_for_transfer(
+           src_attributes,
+           dst_attributes,
+           ATTR_DOMAIN_MASK_POINT,
+           {"position", "handle_type_left", "handle_type_right", "handle_right", "handle_left"})) {
+    duplicate_fillet_point_data(
+        src_curves, dst_curves, curve_selection, point_offsets, attribute.src, attribute.dst.span);
+    attribute.dst.finish();
+  }
+
+  if (!unselected_ranges.is_empty()) {
+    for (auto &attribute : bke::retrieve_attributes_for_transfer(
+             src_attributes, dst_attributes, ATTR_DOMAIN_MASK_POINT)) {
+      bke::curves::copy_point_data(
+          src_curves, dst_curves, unselected_ranges, attribute.src, attribute.dst.span);
+      attribute.dst.finish();
+    }
+  }
+
+  return dst_curves;
+}
+
+bke::CurvesGeometry fillet_curves_poly(const bke::CurvesGeometry &src_curves,
+                                       const IndexMask curve_selection,
+                                       const VArray<float> &radius,
+                                       const VArray<int> &count,
+                                       const bool limit_radius)
+{
+  return fillet_curves(src_curves, curve_selection, radius, count, limit_radius, false);
+}
+
+bke::CurvesGeometry fillet_curves_bezier(const bke::CurvesGeometry &src_curves,
+                                         const IndexMask curve_selection,
+                                         const VArray<float> &radius,
+                                         const bool limit_radius)
+{
+  return fillet_curves(src_curves,
+                       curve_selection,
+                       radius,
+                       VArray<int>::ForSingle(1, src_curves.points_num()),
+                       limit_radius,
+                       true);
+}
+
+}  // namespace blender::geometry
diff --git a/source/blender/geometry/intern/mesh_to_curve_convert.cc b/source/blender/geometry/intern/mesh_to_curve_convert.cc
index 681dfd15137..fdacb174462 100644
--- a/source/blender/geometry/intern/mesh_to_curve_convert.cc
+++ b/source/blender/geometry/intern/mesh_to_curve_convert.cc
@@ -30,13 +30,12 @@ static void copy_with_map(const VArray<T> &src, Span<int> map, MutableSpan<T> ds
   });
 }
 
-static Curves *create_curve_from_vert_indices(const MeshComponent &mesh_component,
-                                              const Span<int> vert_indices,
-                                              const Span<int> curve_offsets,
-                                              const IndexRange cyclic_curves)
+static bke::CurvesGeometry create_curve_from_vert_indices(const Mesh &mesh,
+                                                          const Span<int> vert_indices,
+                                                          const Span<int> curve_offsets,
+                                                          const IndexRange cyclic_curves)
 {
-  Curves *curves_id = bke::curves_new_nomain(vert_indices.size(), curve_offsets.size());
-  bke::CurvesGeometry &curves = bke::CurvesGeometry::wrap(curves_id->geometry);
+  bke::CurvesGeometry curves(vert_indices.size(), curve_offsets.size());
   curves.offsets_for_write().drop_back(1).copy_from(curve_offsets);
   curves.offsets_for_write().last() = vert_indices.size();
   curves.fill_curve_types(CURVE_TYPE_POLY);
@@ -44,8 +43,8 @@ static Curves *create_curve_from_vert_indices(const MeshComponent &mesh_componen
   curves.cyclic_for_write().fill(false);
   curves.cyclic_for_write().slice(cyclic_curves).fill(true);
 
+  const bke::AttributeAccessor mesh_attributes = bke::mesh_attributes(mesh);
   bke::MutableAttributeAccessor curves_attributes = curves.attributes_for_write();
-  const bke::AttributeAccessor mesh_attributes = *mesh_component.attributes();
 
   Set<bke::AttributeIDRef> source_attribute_ids = mesh_attributes.all_ids();
 
@@ -76,7 +75,7 @@ static Curves *create_curve_from_vert_indices(const MeshComponent &mesh_componen
     });
   }
 
-  return curves_id;
+  return curves;
 }
 
 struct CurveFromEdgesOutput {
@@ -220,16 +219,14 @@ static Vector<std::pair<int, int>> get_selected_edges(const Mesh &mesh, const In
   return selected_edges;
 }
 
-Curves *mesh_to_curve_convert(const MeshComponent &mesh_component, const IndexMask selection)
+bke::CurvesGeometry mesh_to_curve_convert(const Mesh &mesh, const IndexMask selection)
 {
-  const Mesh &mesh = *mesh_component.get_for_read();
-  Vector<std::pair<int, int>> selected_edges = get_selected_edges(*mesh_component.get_for_read(),
-                                                                  selection);
+  Vector<std::pair<int, int>> selected_edges = get_selected_edges(mesh, selection);
   CurveFromEdgesOutput output = edges_to_curve_point_indices({mesh.mvert, mesh.totvert},
                                                              selected_edges);
 
   return create_curve_from_vert_indices(
-      mesh_component, output.vert_indices, output.curve_offsets, output.cyclic_curves);
+      mesh, output.vert_indices, output.curve_offsets, output.cyclic_curves);
 }
 
 }  // namespace blender::geometry
diff --git a/source/blender/geometry/intern/point_merge_by_distance.cc b/source/blender/geometry/intern/point_merge_by_distance.cc
index 40bc02cbd34..ac10f4ef00c 100644
--- a/source/blender/geometry/intern/point_merge_by_distance.cc
+++ b/source/blender/geometry/intern/point_merge_by_distance.cc
@@ -18,8 +18,10 @@ PointCloud *point_merge_by_distance(const PointCloudComponent &src_points,
                                     const IndexMask selection)
 {
   const PointCloud &src_pointcloud = *src_points.get_for_read();
-  const int src_size = src_pointcloud.totpoint;
-  Span<float3> positions{reinterpret_cast<float3 *>(src_pointcloud.co), src_size};
+  bke::AttributeAccessor attributes = bke::pointcloud_attributes(src_pointcloud);
+  VArraySpan<float3> positions = attributes.lookup_or_default<float3>(
+      "position", ATTR_DOMAIN_POINT, float3(0));
+  const int src_size = positions.size();
 
   /* Create the KD tree based on only the selected points, to speed up merge detection and
    * balancing. */
@@ -106,10 +108,10 @@ PointCloud *point_merge_by_distance(const PointCloudComponent &src_points,
 
   const bke::AttributeAccessor src_attributes = *src_points.attributes();
   bke::MutableAttributeAccessor dst_attributes = *dst_points.attributes_for_write();
-  Set<bke::AttributeIDRef> attributes = src_attributes.all_ids();
+  Set<bke::AttributeIDRef> attribute_ids = src_attributes.all_ids();
 
   /* Transfer the ID attribute if it exists, using the ID of the first merged point. */
-  if (attributes.contains("id")) {
+  if (attribute_ids.contains("id")) {
     VArraySpan<int> src = src_attributes.lookup_or_default<int>("id", ATTR_DOMAIN_POINT, 0);
     bke::SpanAttributeWriter<int> dst = dst_attributes.lookup_or_add_for_write_only_span<int>(
         "id", ATTR_DOMAIN_POINT);
@@ -122,11 +124,11 @@ PointCloud *point_merge_by_distance(const PointCloudComponent &src_points,
     });
 
     dst.finish();
-    attributes.remove_contained("id");
+    attribute_ids.remove_contained("id");
   }
 
   /* Transfer all other attributes. */
-  for (const bke::AttributeIDRef &id : attributes) {
+  for (const bke::AttributeIDRef &id : attribute_ids) {
     if (!id.should_be_kept()) {
       continue;
     }
diff --git a/source/blender/geometry/intern/realize_instances.cc b/source/blender/geometry/intern/realize_instances.cc
index 25bf00c5783..0544f304283 100644
--- a/source/blender/geometry/intern/realize_instances.cc
+++ b/source/blender/geometry/intern/realize_instances.cc
@@ -69,6 +69,7 @@ struct PointCloudRealizeInfo {
   /** Matches the order stored in #AllPointCloudsInfo.attributes. */
   Array<std::optional<GVArraySpan>> attributes;
   /** Id attribute on the point cloud. If there are no ids, this #Span is empty. */
+  Span<float3> positions;
   Span<int> stored_ids;
 };
 
@@ -665,6 +666,9 @@ static AllPointCloudsInfo preprocess_pointclouds(const GeometrySet &geometry_set
         pointcloud_info.stored_ids = ids_attribute.varray.get_internal_span().typed<int>();
       }
     }
+    const VArray<float3> position_attribute = attributes.lookup_or_default<float3>(
+        "position", ATTR_DOMAIN_POINT, float3(0));
+    pointcloud_info.positions = position_attribute.get_internal_span();
   }
   return info;
 }
@@ -673,18 +677,16 @@ static void execute_realize_pointcloud_task(
     const RealizeInstancesOptions &options,
     const RealizePointCloudTask &task,
     const OrderedAttributes &ordered_attributes,
-    PointCloud &dst_pointcloud,
     MutableSpan<GSpanAttributeWriter> dst_attribute_writers,
-    MutableSpan<int> all_dst_ids)
+    MutableSpan<int> all_dst_ids,
+    MutableSpan<float3> all_dst_positions)
 {
   const PointCloudRealizeInfo &pointcloud_info = *task.pointcloud_info;
   const PointCloud &pointcloud = *pointcloud_info.pointcloud;
-  const Span<float3> src_positions{(float3 *)pointcloud.co, pointcloud.totpoint};
   const IndexRange point_slice{task.start_index, pointcloud.totpoint};
-  MutableSpan<float3> dst_positions{(float3 *)dst_pointcloud.co + task.start_index,
-                                    pointcloud.totpoint};
 
-  copy_transformed_positions(src_positions, task.transform, dst_positions);
+  copy_transformed_positions(
+      pointcloud_info.positions, task.transform, all_dst_positions.slice(point_slice));
 
   /* Create point ids. */
   if (!all_dst_ids.is_empty()) {
@@ -726,6 +728,9 @@ static void execute_realize_pointcloud_tasks(const RealizeInstancesOptions &opti
   bke::MutableAttributeAccessor dst_attributes = bke::pointcloud_attributes_for_write(
       *dst_pointcloud);
 
+  SpanAttributeWriter<float3> positions = dst_attributes.lookup_or_add_for_write_only_span<float3>(
+      "position", ATTR_DOMAIN_POINT);
+
   /* Prepare id attribute. */
   SpanAttributeWriter<int> point_ids;
   if (all_pointclouds_info.create_id_attribute) {
@@ -748,9 +753,9 @@ static void execute_realize_pointcloud_tasks(const RealizeInstancesOptions &opti
       execute_realize_pointcloud_task(options,
                                       task,
                                       ordered_attributes,
-                                      *dst_pointcloud,
                                       dst_attribute_writers,
-                                      point_ids.span);
+                                      point_ids.span,
+                                      positions.span);
     }
   });
 
@@ -758,6 +763,7 @@ static void execute_realize_pointcloud_tasks(const RealizeInstancesOptions &opti
   for (GSpanAttributeWriter &dst_attribute : dst_attribute_writers) {
     dst_attribute.finish();
   }
+  positions.finish();
   if (point_ids) {
     point_ids.finish();
   }
@@ -1238,6 +1244,11 @@ static void execute_realize_curve_tasks(const RealizeInstancesOptions &options,
   dst_component.replace(dst_curves_id);
   bke::MutableAttributeAccessor dst_attributes = dst_curves.attributes_for_write();
 
+  /* Copy settings from the first input geometry set with curves. */
+  const RealizeCurveTask &first_task = tasks.first();
+  const Curves &first_curves_id = *first_task.curve_info->curves;
+  bke::curves_copy_parameters(first_curves_id, *dst_curves_id);
+
   /* Prepare id attribute. */
   SpanAttributeWriter<int> point_ids;
   if (all_curves_info.create_id_attribute) {
@@ -1295,6 +1306,15 @@ static void execute_realize_curve_tasks(const RealizeInstancesOptions &options,
     }
   });
 
+  /* Type counts have to be updated eagerly. */
+  dst_curves.runtime->type_counts.fill(0);
+  for (const RealizeCurveTask &task : tasks) {
+    for (const int i : IndexRange(CURVE_TYPES_NUM)) {
+      dst_curves.runtime->type_counts[i] +=
+          task.curve_info->curves->geometry.runtime->type_counts[i];
+    }
+  }
+
   /* Tag modified attributes. */
   for (GSpanAttributeWriter &dst_attribute : dst_attribute_writers) {
     dst_attribute.finish();
diff --git a/source/blender/geometry/intern/resample_curves.cc b/source/blender/geometry/intern/resample_curves.cc
index c9b8a032ce6..2c3a6c6e0cf 100644
--- a/source/blender/geometry/intern/resample_curves.cc
+++ b/source/blender/geometry/intern/resample_curves.cc
@@ -162,8 +162,6 @@ static void gather_point_attributes_to_interpolate(const CurveComponent &src_com
                            result.src_no_interpolation,
                            result.dst_no_interpolation,
                            result.dst_attributes);
-
-  dst_curves.update_customdata_pointers();
 }
 
 static Curves *resample_to_uniform(const CurveComponent &src_component,
diff --git a/source/blender/geometry/intern/set_curve_type.cc b/source/blender/geometry/intern/set_curve_type.cc
index 08888a74973..40ee2488a4b 100644
--- a/source/blender/geometry/intern/set_curve_type.cc
+++ b/source/blender/geometry/intern/set_curve_type.cc
@@ -1,9 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
+#include "BKE_attribute.hh"
 #include "BKE_attribute_math.hh"
 #include "BKE_curves.hh"
 #include "BKE_curves_utils.hh"
-#include "BKE_geometry_set.hh"
 
 #include "BLI_task.hh"
 
@@ -322,39 +322,16 @@ static void retrieve_generic_point_attributes(const bke::AttributeAccessor &src_
       });
 }
 
-static Curves *create_result_curves(const bke::CurvesGeometry &src_curves,
-                                    const IndexMask selection,
-                                    const CurveType dst_type)
-{
-  Curves *dst_curves_id = bke::curves_new_nomain(0, src_curves.curves_num());
-  bke::CurvesGeometry &dst_curves = bke::CurvesGeometry::wrap(dst_curves_id->geometry);
-  CurveComponent dst_component;
-  dst_component.replace(dst_curves_id, GeometryOwnershipType::Editable);
-  /* Directly copy curve attributes, since they stay the same (except for curve types). */
-  CustomData_copy(&src_curves.curve_data,
-                  &dst_curves.curve_data,
-                  CD_MASK_ALL,
-                  CD_DUPLICATE,
-                  src_curves.curves_num());
-
-  dst_curves.fill_curve_types(selection, dst_type);
-
-  return dst_curves_id;
-}
-
-static Curves *convert_curves_to_bezier(const CurveComponent &src_component,
-                                        const bke::CurvesGeometry &src_curves,
-                                        const IndexMask selection)
+static bke::CurvesGeometry convert_curves_to_bezier(const bke::CurvesGeometry &src_curves,
+                                                    const IndexMask selection)
 {
   const VArray<int8_t> src_knot_modes = src_curves.nurbs_knots_modes();
   const VArray<int8_t> src_types = src_curves.curve_types();
   const VArray<bool> src_cyclic = src_curves.cyclic();
   const Span<float3> src_positions = src_curves.positions();
 
-  Curves *dst_curves_id = create_result_curves(src_curves, selection, CURVE_TYPE_BEZIER);
-  bke::CurvesGeometry &dst_curves = bke::CurvesGeometry::wrap(dst_curves_id->geometry);
-  CurveComponent dst_component;
-  dst_component.replace(dst_curves_id, GeometryOwnershipType::Editable);
+  bke::CurvesGeometry dst_curves = bke::curves::copy_only_curve_domain(src_curves);
+  dst_curves.fill_curve_types(selection, CURVE_TYPE_BEZIER);
 
   MutableSpan<int> dst_offsets = dst_curves.offsets_for_write();
   retrieve_curve_sizes(src_curves, dst_curves.offsets_for_write());
@@ -367,8 +344,8 @@ static Curves *convert_curves_to_bezier(const CurveComponent &src_component,
   bke::curves::accumulate_counts_to_offsets(dst_offsets);
   dst_curves.resize(dst_offsets.last(), dst_curves.curves_num());
 
-  const bke::AttributeAccessor src_attributes = *src_component.attributes();
-  bke::MutableAttributeAccessor dst_attributes = *dst_component.attributes_for_write();
+  const bke::AttributeAccessor src_attributes = src_curves.attributes();
+  bke::MutableAttributeAccessor dst_attributes = dst_curves.attributes_for_write();
 
   GenericAttributes attributes;
   retrieve_generic_point_attributes(src_attributes, dst_attributes, attributes);
@@ -501,21 +478,18 @@ static Curves *convert_curves_to_bezier(const CurveComponent &src_component,
     attribute.finish();
   }
 
-  return dst_curves_id;
+  return dst_curves;
 }
 
-static Curves *convert_curves_to_nurbs(const CurveComponent &src_component,
-                                       const bke::CurvesGeometry &src_curves,
-                                       const IndexMask selection)
+static bke::CurvesGeometry convert_curves_to_nurbs(const bke::CurvesGeometry &src_curves,
+                                                   const IndexMask selection)
 {
   const VArray<int8_t> src_types = src_curves.curve_types();
   const VArray<bool> src_cyclic = src_curves.cyclic();
   const Span<float3> src_positions = src_curves.positions();
 
-  Curves *dst_curves_id = create_result_curves(src_curves, selection, CURVE_TYPE_NURBS);
-  bke::CurvesGeometry &dst_curves = bke::CurvesGeometry::wrap(dst_curves_id->geometry);
-  CurveComponent dst_component;
-  dst_component.replace(dst_curves_id, GeometryOwnershipType::Editable);
+  bke::CurvesGeometry dst_curves = bke::curves::copy_only_curve_domain(src_curves);
+  dst_curves.fill_curve_types(selection, CURVE_TYPE_NURBS);
 
   MutableSpan<int> dst_offsets = dst_curves.offsets_for_write();
   retrieve_curve_sizes(src_curves, dst_curves.offsets_for_write());
@@ -527,8 +501,8 @@ static Curves *convert_curves_to_nurbs(const CurveComponent &src_component,
   bke::curves::accumulate_counts_to_offsets(dst_offsets);
   dst_curves.resize(dst_offsets.last(), dst_curves.curves_num());
 
-  const bke::AttributeAccessor src_attributes = *src_component.attributes();
-  bke::MutableAttributeAccessor dst_attributes = *dst_component.attributes_for_write();
+  const bke::AttributeAccessor src_attributes = src_curves.attributes();
+  bke::MutableAttributeAccessor dst_attributes = dst_curves.attributes_for_write();
 
   GenericAttributes attributes;
   retrieve_generic_point_attributes(src_attributes, dst_attributes, attributes);
@@ -669,7 +643,7 @@ static Curves *convert_curves_to_nurbs(const CurveComponent &src_component,
     attribute.finish();
   }
 
-  return dst_curves_id;
+  return dst_curves;
 }
 
 static bke::CurvesGeometry convert_curves_trivial(const bke::CurvesGeometry &src_curves,
@@ -682,33 +656,31 @@ static bke::CurvesGeometry convert_curves_trivial(const bke::CurvesGeometry &src
   return dst_curves;
 }
 
-Curves *convert_curves(const CurveComponent &src_component,
-                       const bke::CurvesGeometry &src_curves,
-                       const IndexMask selection,
-                       const CurveType dst_type)
+bke::CurvesGeometry convert_curves(const bke::CurvesGeometry &src_curves,
+                                   const IndexMask selection,
+                                   const CurveType dst_type)
 {
   switch (dst_type) {
     case CURVE_TYPE_CATMULL_ROM:
     case CURVE_TYPE_POLY:
-      return bke::curves_new_nomain(convert_curves_trivial(src_curves, selection, dst_type));
+      return convert_curves_trivial(src_curves, selection, dst_type);
     case CURVE_TYPE_BEZIER:
-      return convert_curves_to_bezier(src_component, src_curves, selection);
+      return convert_curves_to_bezier(src_curves, selection);
     case CURVE_TYPE_NURBS:
-      return convert_curves_to_nurbs(src_component, src_curves, selection);
+      return convert_curves_to_nurbs(src_curves, selection);
   }
   BLI_assert_unreachable();
-  return nullptr;
+  return {};
 }
 
 bool try_curves_conversion_in_place(const IndexMask selection,
                                     const CurveType dst_type,
-                                    FunctionRef<Curves &()> get_writable_curves_fn)
+                                    FunctionRef<bke::CurvesGeometry &()> get_writable_curves_fn)
 {
   if (conversion_can_change_point_num(dst_type)) {
     return false;
   }
-  Curves &curves_id = get_writable_curves_fn();
-  bke::CurvesGeometry &curves = bke::CurvesGeometry::wrap(curves_id.geometry);
+  bke::CurvesGeometry &curves = get_writable_curves_fn();
   curves.fill_curve_types(selection, dst_type);
   curves.remove_attributes_based_on_types();
   return true;
diff --git a/source/blender/geometry/intern/subdivide_curves.cc b/source/blender/geometry/intern/subdivide_curves.cc
index 914174235cd..8a6f3cbd5e3 100644
--- a/source/blender/geometry/intern/subdivide_curves.cc
+++ b/source/blender/geometry/intern/subdivide_curves.cc
@@ -12,26 +12,6 @@
 namespace blender::geometry {
 
 /**
- * \warning Only the curve domain of the input is copied, so the result is invalid!
- */
-static Curves *create_result_curves(const bke::CurvesGeometry &src_curves)
-{
-  Curves *dst_curves_id = bke::curves_new_nomain(0, src_curves.curves_num());
-  bke::CurvesGeometry &dst_curves = bke::CurvesGeometry::wrap(dst_curves_id->geometry);
-  CurveComponent dst_component;
-  dst_component.replace(dst_curves_id, GeometryOwnershipType::Editable);
-  /* Directly copy curve attributes, since they stay the same. */
-  CustomData_copy(&src_curves.curve_data,
-                  &dst_curves.curve_data,
-                  CD_MASK_ALL,
-                  CD_DUPLICATE,
-                  src_curves.curves_num());
-  dst_curves.runtime->type_counts = src_curves.runtime->type_counts;
-
-  return dst_curves_id;
-}
-
-/**
  * Return a range used to retrieve values from an array of values stored per point, but with an
  * extra element at the end of each curve. This is useful for offsets within curves, where it is
  * convenient to store the first 0 and have the last offset be the total result curve size.
@@ -76,40 +56,6 @@ static void calculate_result_offsets(const bke::CurvesGeometry &src_curves,
   bke::curves::accumulate_counts_to_offsets(dst_curve_offsets);
 }
 
-struct AttributeTransferData {
-  /* Expect that if an attribute exists, it is stored as a contiguous array internally anyway. */
-  GVArraySpan src;
-  bke::GSpanAttributeWriter dst;
-};
-
-static Vector<AttributeTransferData> retrieve_point_attributes(
-    const bke::AttributeAccessor &src_attributes,
-    bke::MutableAttributeAccessor &dst_attributes,
-    const Set<std::string> &skip = {})
-{
-  Vector<AttributeTransferData> attributes;
-  src_attributes.for_all(
-      [&](const bke::AttributeIDRef &id, const bke::AttributeMetaData meta_data) {
-        if (meta_data.domain != ATTR_DOMAIN_POINT) {
-          /* Curve domain attributes are all copied directly to the result in one step. */
-          return true;
-        }
-        if (id.is_named() && skip.contains(id.name())) {
-          return true;
-        }
-
-        GVArray src = src_attributes.lookup(id, ATTR_DOMAIN_POINT);
-        BLI_assert(src);
-        bke::GSpanAttributeWriter dst = dst_attributes.lookup_or_add_for_write_only_span(
-            id, ATTR_DOMAIN_POINT, meta_data.data_type);
-        BLI_assert(dst);
-        attributes.append({std::move(src), std::move(dst)});
-
-        return true;
-      });
-  return attributes;
-}
-
 template<typename T>
 static inline void linear_interpolation(const T &a, const T &b, MutableSpan<T> dst)
 {
@@ -342,10 +288,9 @@ static void subdivide_bezier_positions(const Span<float3> src_positions,
       cyclic, dst_types_l, dst_types_r, dst_positions, dst_handles_l, dst_handles_r);
 }
 
-Curves *subdivide_curves(const CurveComponent &src_component,
-                         const bke::CurvesGeometry &src_curves,
-                         const IndexMask selection,
-                         const VArray<int> &cuts)
+bke::CurvesGeometry subdivide_curves(const bke::CurvesGeometry &src_curves,
+                                     const IndexMask selection,
+                                     const VArray<int> &cuts)
 {
   const Vector<IndexRange> unselected_ranges = selection.extract_ranges_invert(
       src_curves.curves_range());
@@ -353,10 +298,7 @@ Curves *subdivide_curves(const CurveComponent &src_component,
   /* Cyclic is accessed a lot, it's probably worth it to make sure it's a span. */
   const VArraySpan<bool> cyclic{src_curves.cyclic()};
 
-  Curves *dst_curves_id = create_result_curves(src_curves);
-  bke::CurvesGeometry &dst_curves = bke::CurvesGeometry::wrap(dst_curves_id->geometry);
-  CurveComponent dst_component;
-  dst_component.replace(dst_curves_id, GeometryOwnershipType::Editable);
+  bke::CurvesGeometry dst_curves = bke::curves::copy_only_curve_domain(src_curves);
 
   /* For each point, this contains the point offset in the corresponding result curve,
    * starting at zero. For example for two curves with four points each, the values might
@@ -385,11 +327,12 @@ Curves *subdivide_curves(const CurveComponent &src_component,
 
   dst_curves.resize(dst_curves.offsets().last(), dst_curves.curves_num());
 
-  const bke::AttributeAccessor src_attributes = *src_component.attributes();
-  bke::MutableAttributeAccessor dst_attributes = *dst_component.attributes_for_write();
+  const bke::AttributeAccessor src_attributes = src_curves.attributes();
+  bke::MutableAttributeAccessor dst_attributes = dst_curves.attributes_for_write();
 
   auto subdivide_catmull_rom = [&](IndexMask selection) {
-    for (auto &attribute : retrieve_point_attributes(src_attributes, dst_attributes)) {
+    for (auto &attribute : bke::retrieve_attributes_for_transfer(
+             src_attributes, dst_attributes, ATTR_DOMAIN_MASK_POINT)) {
       subdivide_attribute_catmull_rom(src_curves,
                                       dst_curves,
                                       selection,
@@ -402,7 +345,8 @@ Curves *subdivide_curves(const CurveComponent &src_component,
   };
 
   auto subdivide_poly = [&](IndexMask selection) {
-    for (auto &attribute : retrieve_point_attributes(src_attributes, dst_attributes)) {
+    for (auto &attribute : bke::retrieve_attributes_for_transfer(
+             src_attributes, dst_attributes, ATTR_DOMAIN_MASK_POINT)) {
       subdivide_attribute_linear(
           src_curves, dst_curves, selection, point_offsets, attribute.src, attribute.dst.span);
       attribute.dst.finish();
@@ -443,13 +387,14 @@ Curves *subdivide_curves(const CurveComponent &src_component,
       }
     });
 
-    for (auto &attribute : retrieve_point_attributes(src_attributes,
-                                                     dst_attributes,
-                                                     {"position",
-                                                      "handle_type_left",
-                                                      "handle_type_right",
-                                                      "handle_right",
-                                                      "handle_left"})) {
+    for (auto &attribute : bke::retrieve_attributes_for_transfer(src_attributes,
+                                                                 dst_attributes,
+                                                                 ATTR_DOMAIN_MASK_POINT,
+                                                                 {"position",
+                                                                  "handle_type_left",
+                                                                  "handle_type_right",
+                                                                  "handle_right",
+                                                                  "handle_left"})) {
       subdivide_attribute_linear(
           src_curves, dst_curves, selection, point_offsets, attribute.src, attribute.dst.span);
       attribute.dst.finish();
@@ -469,14 +414,15 @@ Curves *subdivide_curves(const CurveComponent &src_component,
                                      subdivide_nurbs);
 
   if (!unselected_ranges.is_empty()) {
-    for (auto &attribute : retrieve_point_attributes(src_attributes, dst_attributes)) {
+    for (auto &attribute : bke::retrieve_attributes_for_transfer(
+             src_attributes, dst_attributes, ATTR_DOMAIN_MASK_POINT)) {
       bke::curves::copy_point_data(
           src_curves, dst_curves, unselected_ranges, attribute.src, attribute.dst.span);
       attribute.dst.finish();
     }
   }
 
-  return dst_curves_id;
+  return dst_curves;
 }
 
 }  // namespace blender::geometry
diff --git a/source/blender/geometry/intern/uv_parametrizer.c b/source/blender/geometry/intern/uv_parametrizer.c
index c75a302f8dc..38924c718c3 100644
--- a/source/blender/geometry/intern/uv_parametrizer.c
+++ b/source/blender/geometry/intern/uv_parametrizer.c
@@ -148,7 +148,8 @@ typedef struct PChart {
     } lscm;
     struct PChartPack {
       float rescale, area;
-      float size[2] /* , trans[2] */;
+      float size[2];
+      float origin[2];
     } pack;
   } u;
 
@@ -3306,8 +3307,10 @@ static float p_face_stretch(PFace *f)
 
   area = p_face_uv_area_signed(f);
 
-  if (area <= 0.0f) { /* flipped face -> infinite stretch */
-    return 1e10f;
+  if (area <= 0.0f) {
+    /* When a face is flipped, provide a large penalty.
+     * Add on a slight gradient to unflip the face, see also: T99781. */
+    return 1e8f * (1.0f + p_edge_uv_length(e1) + p_edge_uv_length(e2) + p_edge_uv_length(e3));
   }
 
   w = 1.0f / (2.0f * area);
@@ -4243,7 +4246,10 @@ void GEO_uv_parametrizer_pack(ParamHandle *handle,
   }
 }
 
-void GEO_uv_parametrizer_average(ParamHandle *phandle, bool ignore_pinned)
+void GEO_uv_parametrizer_average(ParamHandle *phandle,
+                                 bool ignore_pinned,
+                                 bool scale_uv,
+                                 bool shear)
 {
   PChart *chart;
   int i;
@@ -4256,17 +4262,93 @@ void GEO_uv_parametrizer_average(ParamHandle *phandle, bool ignore_pinned)
   }
 
   for (i = 0; i < phandle->ncharts; i++) {
-    PFace *f;
     chart = phandle->charts[i];
 
     if (ignore_pinned && (chart->flag & PCHART_HAS_PINS)) {
       continue;
     }
 
+    p_chart_uv_bbox(chart, minv, maxv);
+    mid_v2_v2v2(chart->u.pack.origin, minv, maxv);
+
+    if (scale_uv || shear) {
+      /* It's possible that for some "bad" inputs, the following iteration will converge slowly or
+       * perhaps even diverge. Rather than infinite loop, we only iterate a maximum of `max_iter`
+       * times. (Also useful when making changes to the calculation.) */
+      int max_iter = 10;
+      for (int j = 0; j < max_iter; j++) {
+        /* An island could contain millions of polygons. When summing many small values, we need to
+         * use double precision in the accumulator to maintain accuracy. Note that the individual
+         * calculations only need to be at single precision.*/
+        double scale_cou = 0;
+        double scale_cov = 0;
+        double scale_cross = 0;
+        double weight_sum = 0;
+        for (PFace *f = chart->faces; f; f = f->nextlink) {
+          float m[2][2], s[2][2];
+          PVert *va = f->edge->vert;
+          PVert *vb = f->edge->next->vert;
+          PVert *vc = f->edge->next->next->vert;
+          s[0][0] = va->uv[0] - vc->uv[0];
+          s[0][1] = va->uv[1] - vc->uv[1];
+          s[1][0] = vb->uv[0] - vc->uv[0];
+          s[1][1] = vb->uv[1] - vc->uv[1];
+          /* Find the "U" axis and "V" axis in triangle co-ordinates. Normally this would require
+           * SVD, but in 2D we can use a cheaper matrix inversion instead.*/
+          if (!invert_m2_m2(m, s)) {
+            continue;
+          }
+          float cou[3], cov[3]; /* i.e. Texture "U" and texture "V" in 3D co-ordinates.*/
+          for (int k = 0; k < 3; k++) {
+            cou[k] = m[0][0] * (va->co[k] - vc->co[k]) + m[0][1] * (vb->co[k] - vc->co[k]);
+            cov[k] = m[1][0] * (va->co[k] - vc->co[k]) + m[1][1] * (vb->co[k] - vc->co[k]);
+          }
+          const float weight = p_face_area(f);
+          scale_cou += len_v3(cou) * weight;
+          scale_cov += len_v3(cov) * weight;
+          if (shear) {
+            normalize_v3(cov);
+            normalize_v3(cou);
+
+            /* Why is scale_cross called `cross` when we call `dot`? The next line calculates:
+             * `scale_cross += length(cross(cross(cou, face_normal), cov))`
+             * By construction, both `cou` and `cov` are orthogonal to the face normal.
+             * By definition, the normal vector has unit length. */
+            scale_cross += dot_v3v3(cou, cov) * weight;
+          }
+          weight_sum += weight;
+        }
+        if (scale_cou * scale_cov < 1e-10f) {
+          break;
+        }
+        const float scale_factor_u = scale_uv ? sqrtf(scale_cou / scale_cov) : 1.0f;
+
+        /* Compute correction transform. */
+        float t[2][2];
+        t[0][0] = scale_factor_u;
+        t[1][0] = clamp_f((float)(scale_cross / weight_sum), -0.5f, 0.5f);
+        t[0][1] = 0;
+        t[1][1] = 1.0f / scale_factor_u;
+
+        /* Apply the correction. */
+        p_chart_uv_transform(chart, t);
+
+        /* How far from the identity transform are we? [[1,0],[0,1]] */
+        const float err = fabsf(t[0][0] - 1.0f) + fabsf(t[1][0]) + fabsf(t[0][1]) +
+                          fabsf(t[1][1] - 1.0f);
+
+        const float tolerance = 1e-6f; /* Trade accuracy for performance. */
+        if (err < tolerance) {
+          /* Too slow? Use Richardson Extrapolation to accelerate the convergence.*/
+          break;
+        }
+      }
+    }
+
     chart->u.pack.area = 0.0f;    /* 3d area */
     chart->u.pack.rescale = 0.0f; /* UV area, abusing rescale for tmp storage, oh well :/ */
 
-    for (f = chart->faces; f; f = f->nextlink) {
+    for (PFace *f = chart->faces; f; f = f->nextlink) {
       chart->u.pack.area += p_face_area(f);
       chart->u.pack.rescale += fabsf(p_face_uv_area_signed(f));
     }
@@ -4292,18 +4374,16 @@ void GEO_uv_parametrizer_average(ParamHandle *phandle, bool ignore_pinned)
     if (chart->u.pack.area != 0.0f && chart->u.pack.rescale != 0.0f) {
       fac = chart->u.pack.area / chart->u.pack.rescale;
 
-      /* Get the island center */
-      p_chart_uv_bbox(chart, minv, maxv);
-      trans[0] = (minv[0] + maxv[0]) / -2.0f;
-      trans[1] = (minv[1] + maxv[1]) / -2.0f;
-
-      /* Move center to 0,0 */
-      p_chart_uv_translate(chart, trans);
+      /* Average scale. */
       p_chart_uv_scale(chart, sqrtf(fac / tot_fac));
 
-      /* Move to original center */
-      trans[0] = -trans[0];
-      trans[1] = -trans[1];
+      /* Get the current island center. */
+      p_chart_uv_bbox(chart, minv, maxv);
+
+      /* Move to original center. */
+      mid_v2_v2v2(trans, minv, maxv);
+      negate_v2(trans);
+      add_v2_v2(trans, chart->u.pack.origin);
       p_chart_uv_translate(chart, trans);
     }
   }
diff --git a/source/blender/gpencil_modifiers/intern/MOD_gpencillineart.c b/source/blender/gpencil_modifiers/intern/MOD_gpencillineart.c
index 4f00b997902..77616ae13b6 100644
--- a/source/blender/gpencil_modifiers/intern/MOD_gpencillineart.c
+++ b/source/blender/gpencil_modifiers/intern/MOD_gpencillineart.c
@@ -448,7 +448,7 @@ static void options_light_reference_draw(const bContext *UNUSED(C), Panel *panel
   uiItemR(col, ptr, "shadow_camera_near", 0, "Near", ICON_NONE);
   uiItemR(col, ptr, "shadow_camera_far", 0, "Far", ICON_NONE);
 
-  uiItemR(layout, ptr, "use_shadow_enclosed_shapes", 0, IFACE_("Eclosed Shapes"), ICON_NONE);
+  uiItemR(layout, ptr, "use_shadow_enclosed_shapes", 0, IFACE_("Enclosed Shapes"), ICON_NONE);
 }
 
 static void options_panel_draw(const bContext *UNUSED(C), Panel *panel)
diff --git a/source/blender/gpencil_modifiers/intern/MOD_gpencilmirror.c b/source/blender/gpencil_modifiers/intern/MOD_gpencilmirror.c
index 1d62e930caa..1a8d1e75746 100644
--- a/source/blender/gpencil_modifiers/intern/MOD_gpencilmirror.c
+++ b/source/blender/gpencil_modifiers/intern/MOD_gpencilmirror.c
@@ -23,6 +23,7 @@
 
 #include "BKE_context.h"
 #include "BKE_gpencil.h"
+#include "BKE_gpencil_geom.h"
 #include "BKE_gpencil_modifier.h"
 #include "BKE_lib_query.h"
 #include "BKE_main.h"
@@ -100,9 +101,11 @@ static void update_position(Object *ob, MirrorGpencilModifierData *mmd, bGPDstro
   }
 }
 
-static void generate_geometry(GpencilModifierData *md, Object *ob, bGPDlayer *gpl, bGPDframe *gpf)
+static void generate_geometry(
+    GpencilModifierData *md, Object *ob, bGPDlayer *gpl, bGPDframe *gpf, const bool update)
 {
   MirrorGpencilModifierData *mmd = (MirrorGpencilModifierData *)md;
+  bGPdata *gpd = ob->data;
   bGPDstroke *gps, *gps_new = NULL;
   int tot_strokes;
   int i;
@@ -129,6 +132,9 @@ static void generate_geometry(GpencilModifierData *md, Object *ob, bGPDlayer *gp
                                            mmd->flag & GP_MIRROR_INVERT_MATERIAL)) {
           gps_new = BKE_gpencil_stroke_duplicate(gps, true, true);
           update_position(ob, mmd, gps_new, xi);
+          if (update) {
+            BKE_gpencil_stroke_geometry_update(gpd, gps_new);
+          }
           BLI_addtail(&gpf->strokes, gps_new);
         }
       }
@@ -147,7 +153,7 @@ static void generateStrokes(GpencilModifierData *md, Depsgraph *depsgraph, Objec
     if (gpf == NULL) {
       continue;
     }
-    generate_geometry(md, ob, gpl, gpf);
+    generate_geometry(md, ob, gpl, gpf, false);
   }
 }
 
@@ -167,7 +173,7 @@ static void bakeModifier(Main *UNUSED(bmain),
       BKE_scene_graph_update_for_newframe(depsgraph);
 
       /* compute mirror effects on this frame */
-      generate_geometry(md, ob, gpl, gpf);
+      generate_geometry(md, ob, gpl, gpf, true);
     }
   }
 
diff --git a/source/blender/gpu/CMakeLists.txt b/source/blender/gpu/CMakeLists.txt
index 0f539d4b30a..5e97909a2b8 100644
--- a/source/blender/gpu/CMakeLists.txt
+++ b/source/blender/gpu/CMakeLists.txt
@@ -5,7 +5,7 @@
 # to more easily highlight code-paths in other libraries that need to be refactored,
 # bf_gpu is allowed to have opengl regardless of this option.
 
-if(NOT WITH_OPENGL AND NOT WITH_METAL_BACKEND)
+if(NOT WITH_OPENGL AND NOT WITH_METAL_BACKEND AND NOT WITH_HEADLESS)
   add_definitions(-DWITH_OPENGL)
 endif()
 
@@ -195,9 +195,11 @@ set(METAL_SRC
   metal/mtl_debug.mm
   metal/mtl_framebuffer.mm
   metal/mtl_memory.mm
+  metal/mtl_query.mm
   metal/mtl_state.mm
   metal/mtl_texture.mm
   metal/mtl_texture_util.mm
+  metal/mtl_uniform_buffer.mm
 
   metal/mtl_backend.hh
   metal/mtl_capabilities.hh
@@ -206,8 +208,10 @@ set(METAL_SRC
   metal/mtl_debug.hh
   metal/mtl_framebuffer.hh
   metal/mtl_memory.hh
+  metal/mtl_query.hh
   metal/mtl_state.hh
   metal/mtl_texture.hh
+  metal/mtl_uniform_buffer.hh
 )
 
 # Select Backend source based on availability
@@ -561,7 +565,7 @@ endif()
 
 
 
-if(WITH_GPU_SHADER_BUILDER)
+if(WITH_GPU_BUILDTIME_SHADER_BUILDER)
   # TODO(@fclem) Fix this mess.
   if(APPLE)
     add_executable(shader_builder
@@ -570,11 +574,7 @@ if(WITH_GPU_SHADER_BUILDER)
       )
 
     setup_platform_linker_flags(shader_builder)
-
-    target_link_libraries(shader_builder PUBLIC
-      bf_blenkernel
-      buildinfoobj
-    )
+    target_link_libraries(shader_builder PUBLIC buildinfoobj)
   else()
     if(WIN32)
       # We can re-use the manifest from tests.exe here since it's
@@ -589,12 +589,14 @@ if(WITH_GPU_SHADER_BUILDER)
       ${MANIFEST}
     )
 
-    target_link_libraries(shader_builder PUBLIC
-      bf_blenkernel
-      ${PLATFORM_LINKLIBS}
-    )
   endif()
-
+  target_link_libraries(shader_builder PUBLIC
+    bf_gpu
+    bf_intern_clog
+    bf_blenlib
+    bf_intern_ghost
+    ${PLATFORM_LINKLIBS}
+  )
   target_include_directories(shader_builder PRIVATE ${INC} ${CMAKE_CURRENT_BINARY_DIR})
 
   set(SRC_BAKED_CREATE_INFOS_FILE ${CMAKE_CURRENT_BINARY_DIR}/shader_baked.hh)
diff --git a/source/blender/gpu/GPU_context.h b/source/blender/gpu/GPU_context.h
index 1fcd94c48fc..9d92ea2cad9 100644
--- a/source/blender/gpu/GPU_context.h
+++ b/source/blender/gpu/GPU_context.h
@@ -17,10 +17,10 @@
 extern "C" {
 #endif
 
-void GPU_backend_init(eGPUBackendType backend);
-void GPU_backend_exit(void);
-bool GPU_backend_supported(eGPUBackendType type);
-
+/* GPU backends abstract the differences between different APIs. GPU_context_create
+ * automatically initializes the backend, and GPU_context_discard frees it when there
+ * are no more contexts. */
+bool GPU_backend_supported(void);
 eGPUBackendType GPU_backend_get_type(void);
 
 /** Opaque type hiding blender::gpu::Context. */
diff --git a/source/blender/gpu/intern/gpu_backend.hh b/source/blender/gpu/intern/gpu_backend.hh
index 6e07e6c3229..d2890efee72 100644
--- a/source/blender/gpu/intern/gpu_backend.hh
+++ b/source/blender/gpu/intern/gpu_backend.hh
@@ -30,6 +30,7 @@ class VertBuf;
 class GPUBackend {
  public:
   virtual ~GPUBackend() = default;
+  virtual void delete_resources() = 0;
 
   static GPUBackend *get();
 
diff --git a/source/blender/gpu/intern/gpu_context.cc b/source/blender/gpu/intern/gpu_context.cc
index 4a0a9ecc7f6..e29b0d5801d 100644
--- a/source/blender/gpu/intern/gpu_context.cc
+++ b/source/blender/gpu/intern/gpu_context.cc
@@ -27,6 +27,7 @@
 #include "gpu_batch_private.hh"
 #include "gpu_context_private.hh"
 #include "gpu_matrix_private.h"
+#include "gpu_private.h"
 
 #ifdef WITH_OPENGL_BACKEND
 #  include "gl_backend.hh"
@@ -43,6 +44,12 @@ using namespace blender::gpu;
 
 static thread_local Context *active_ctx = nullptr;
 
+static std::mutex backend_users_mutex;
+static int num_backend_users = 0;
+
+static void gpu_backend_create();
+static void gpu_backend_discard();
+
 /* -------------------------------------------------------------------- */
 /** \name gpu::Context methods
  * \{ */
@@ -85,9 +92,13 @@ Context *Context::get()
 
 GPUContext *GPU_context_create(void *ghost_window)
 {
-  if (GPUBackend::get() == nullptr) {
-    /* TODO: move where it make sense. */
-    GPU_backend_init(GPU_BACKEND_OPENGL);
+  {
+    std::scoped_lock lock(backend_users_mutex);
+    if (num_backend_users == 0) {
+      /* Automatically create backend when first context is created. */
+      gpu_backend_create();
+    }
+    num_backend_users++;
   }
 
   Context *ctx = GPUBackend::get()->context_alloc(ghost_window);
@@ -101,6 +112,16 @@ void GPU_context_discard(GPUContext *ctx_)
   Context *ctx = unwrap(ctx_);
   delete ctx;
   active_ctx = nullptr;
+
+  {
+    std::scoped_lock lock(backend_users_mutex);
+    num_backend_users--;
+    BLI_assert(num_backend_users >= 0);
+    if (num_backend_users == 0) {
+      /* Discard backend when last context is discarded. */
+      gpu_backend_discard();
+    }
+  }
 }
 
 void GPU_context_active_set(GPUContext *ctx_)
@@ -191,11 +212,12 @@ void GPU_render_step()
 /** \name Backend selection
  * \{ */
 
+static const eGPUBackendType g_backend_type = GPU_BACKEND_OPENGL;
 static GPUBackend *g_backend = nullptr;
 
-bool GPU_backend_supported(eGPUBackendType type)
+bool GPU_backend_supported(void)
 {
-  switch (type) {
+  switch (g_backend_type) {
     case GPU_BACKEND_OPENGL:
 #ifdef WITH_OPENGL_BACKEND
       return true;
@@ -214,12 +236,12 @@ bool GPU_backend_supported(eGPUBackendType type)
   }
 }
 
-void GPU_backend_init(eGPUBackendType backend_type)
+static void gpu_backend_create()
 {
   BLI_assert(g_backend == nullptr);
-  BLI_assert(GPU_backend_supported(backend_type));
+  BLI_assert(GPU_backend_supported());
 
-  switch (backend_type) {
+  switch (g_backend_type) {
 #ifdef WITH_OPENGL_BACKEND
     case GPU_BACKEND_OPENGL:
       g_backend = new GLBackend;
@@ -236,10 +258,15 @@ void GPU_backend_init(eGPUBackendType backend_type)
   }
 }
 
-void GPU_backend_exit()
+void gpu_backend_delete_resources()
+{
+  BLI_assert(g_backend);
+  g_backend->delete_resources();
+}
+
+void gpu_backend_discard()
 {
-  /* TODO: assert no resource left. Currently UI textures are still not freed in their context
-   * correctly. */
+  /* TODO: assert no resource left. */
   delete g_backend;
   g_backend = nullptr;
 }
diff --git a/source/blender/gpu/intern/gpu_context_private.hh b/source/blender/gpu/intern/gpu_context_private.hh
index 9cdf0075632..f823a92893c 100644
--- a/source/blender/gpu/intern/gpu_context_private.hh
+++ b/source/blender/gpu/intern/gpu_context_private.hh
@@ -28,11 +28,11 @@ namespace blender::gpu {
 class Context {
  public:
   /** State management */
-  Shader *shader = NULL;
-  FrameBuffer *active_fb = NULL;
-  GPUMatrixState *matrix_state = NULL;
-  StateManager *state_manager = NULL;
-  Immediate *imm = NULL;
+  Shader *shader = nullptr;
+  FrameBuffer *active_fb = nullptr;
+  GPUMatrixState *matrix_state = nullptr;
+  StateManager *state_manager = nullptr;
+  Immediate *imm = nullptr;
 
   /**
    * All 4 window frame-buffers.
@@ -41,10 +41,10 @@ class Context {
    * Front frame-buffers contains (in principle, but not always) the last frame color.
    * Default frame-buffer is back_left.
    */
-  FrameBuffer *back_left = NULL;
-  FrameBuffer *front_left = NULL;
-  FrameBuffer *back_right = NULL;
-  FrameBuffer *front_right = NULL;
+  FrameBuffer *back_left = nullptr;
+  FrameBuffer *front_left = nullptr;
+  FrameBuffer *back_right = nullptr;
+  FrameBuffer *front_right = nullptr;
 
   DebugStack debug_stack;
 
@@ -52,7 +52,7 @@ class Context {
   /** Thread on which this context is active. */
   pthread_t thread_;
   bool is_active_;
-  /** Avoid including GHOST headers. Can be NULL for off-screen contexts. */
+  /** Avoid including GHOST headers. Can be nullptr for off-screen contexts. */
   void *ghost_window_;
 
  public:
diff --git a/source/blender/gpu/intern/gpu_immediate_private.hh b/source/blender/gpu/intern/gpu_immediate_private.hh
index 6c50fa01071..74ebbdc7ae3 100644
--- a/source/blender/gpu/intern/gpu_immediate_private.hh
+++ b/source/blender/gpu/intern/gpu_immediate_private.hh
@@ -19,7 +19,7 @@ namespace blender::gpu {
 class Immediate {
  public:
   /** Pointer to the mapped buffer data for the current vertex. */
-  uchar *vertex_data = NULL;
+  uchar *vertex_data = nullptr;
   /** Current vertex index. */
   uint vertex_idx = 0;
   /** Length of the buffer in vertices. */
@@ -32,12 +32,12 @@ class Immediate {
   /** Current draw call specification. */
   GPUPrimType prim_type = GPU_PRIM_NONE;
   GPUVertFormat vertex_format = {};
-  GPUShader *shader = NULL;
+  GPUShader *shader = nullptr;
   /** Enforce strict vertex count (disabled when using #immBeginAtMost). */
   bool strict_vertex_len = true;
 
   /** Batch in construction when using #immBeginBatch. */
-  GPUBatch *batch = NULL;
+  GPUBatch *batch = nullptr;
 
   /** Wide Line workaround. */
 
diff --git a/source/blender/gpu/intern/gpu_init_exit.c b/source/blender/gpu/intern/gpu_init_exit.c
index 062614fb5cb..34b355eefaf 100644
--- a/source/blender/gpu/intern/gpu_init_exit.c
+++ b/source/blender/gpu/intern/gpu_init_exit.c
@@ -55,6 +55,8 @@ void GPU_exit(void)
   gpu_shader_dependency_exit();
   gpu_shader_create_info_exit();
 
+  gpu_backend_delete_resources();
+
   initialized = false;
 }
 
diff --git a/source/blender/gpu/intern/gpu_private.h b/source/blender/gpu/intern/gpu_private.h
index a8ee5187d98..0e293302086 100644
--- a/source/blender/gpu/intern/gpu_private.h
+++ b/source/blender/gpu/intern/gpu_private.h
@@ -10,6 +10,10 @@
 extern "C" {
 #endif
 
+/* gpu_backend.cc */
+
+void gpu_backend_delete_resources(void);
+
 /* gpu_pbvh.c */
 
 void gpu_pbvh_init(void);
diff --git a/source/blender/gpu/intern/gpu_shader_builder_stubs.cc b/source/blender/gpu/intern/gpu_shader_builder_stubs.cc
index 515f65adb73..d8af2fc584d 100644
--- a/source/blender/gpu/intern/gpu_shader_builder_stubs.cc
+++ b/source/blender/gpu/intern/gpu_shader_builder_stubs.cc
@@ -12,6 +12,7 @@
 #include "IMB_imbuf.h"
 #include "IMB_imbuf_types.h"
 
+#include "BKE_attribute.h"
 #include "BKE_customdata.h"
 #include "BKE_global.h"
 #include "BKE_material.h"
@@ -101,6 +102,38 @@ void UI_GetThemeColorShadeAlpha4ubv(int UNUSED(colorid),
 /** \} */
 
 /* -------------------------------------------------------------------- */
+/** \name Stubs of BKE_attribute.h
+ * \{ */
+
+void BKE_id_attribute_copy_domains_temp(short UNUSED(id_type),
+                                        const struct CustomData *UNUSED(vdata),
+                                        const struct CustomData *UNUSED(edata),
+                                        const struct CustomData *UNUSED(ldata),
+                                        const struct CustomData *UNUSED(pdata),
+                                        const struct CustomData *UNUSED(cdata),
+                                        struct ID *UNUSED(i_id))
+{
+}
+
+struct CustomDataLayer *BKE_id_attributes_active_color_get(const struct ID *UNUSED(id))
+{
+  return nullptr;
+}
+
+struct CustomDataLayer *BKE_id_attributes_render_color_get(const struct ID *UNUSED(id))
+{
+  return nullptr;
+}
+
+eAttrDomain BKE_id_attribute_domain(const struct ID *UNUSED(id),
+                                    const struct CustomDataLayer *UNUSED(layer))
+{
+  return ATTR_DOMAIN_AUTO;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
 /** \name Stubs of BKE_paint.h
  * \{ */
 bool paint_is_face_hidden(const struct MLoopTri *UNUSED(lt),
@@ -170,6 +203,28 @@ int CustomData_get_offset(const struct CustomData *UNUSED(data), int UNUSED(type
   return 0;
 }
 
+int CustomData_get_named_layer_index(const struct CustomData *UNUSED(data),
+                                     int UNUSED(type),
+                                     const char *UNUSED(name))
+{
+  return -1;
+}
+
+int CustomData_get_active_layer_index(const struct CustomData *UNUSED(data), int UNUSED(type))
+{
+  return -1;
+}
+
+int CustomData_get_render_layer_index(const struct CustomData *UNUSED(data), int UNUSED(type))
+{
+  return -1;
+}
+
+bool CustomData_has_layer(const struct CustomData *UNUSED(data), int UNUSED(type))
+{
+  return false;
+}
+
 /** \} */
 
 /* -------------------------------------------------------------------- */
@@ -237,5 +292,14 @@ void DRW_deferred_shader_remove(struct GPUMaterial *UNUSED(mat))
   BLI_assert_unreachable();
 }
 
+void DRW_cdlayer_attr_aliases_add(struct GPUVertFormat *UNUSED(format),
+                                  const char *UNUSED(base_name),
+                                  const struct CustomData *UNUSED(data),
+                                  const struct CustomDataLayer *UNUSED(cl),
+                                  bool UNUSED(is_active_render),
+                                  bool UNUSED(is_active_layer))
+{
+}
+
 /** \} */
 }
diff --git a/source/blender/gpu/intern/gpu_shader_create_info.cc b/source/blender/gpu/intern/gpu_shader_create_info.cc
index 16ce4f7723e..bc0731862cb 100644
--- a/source/blender/gpu/intern/gpu_shader_create_info.cc
+++ b/source/blender/gpu/intern/gpu_shader_create_info.cc
@@ -333,8 +333,11 @@ bool gpu_shader_create_info_compile_all()
   int skipped = 0;
   int total = 0;
   for (ShaderCreateInfo *info : g_create_infos->values()) {
+    info->finalize();
     if (info->do_static_compilation_) {
-      if (GPU_compute_shader_support() == false && info->compute_source_ != nullptr) {
+      if ((GPU_compute_shader_support() == false && info->compute_source_ != nullptr) ||
+          (GPU_shader_image_load_store_support() == false && info->has_resource_image()) ||
+          (GPU_shader_storage_buffer_objects_support() == false && info->has_resource_storage())) {
         skipped++;
         continue;
       }
diff --git a/source/blender/gpu/intern/gpu_shader_create_info.hh b/source/blender/gpu/intern/gpu_shader_create_info.hh
index 4927ef75a75..8e05412d0ee 100644
--- a/source/blender/gpu/intern/gpu_shader_create_info.hh
+++ b/source/blender/gpu/intern/gpu_shader_create_info.hh
@@ -872,6 +872,31 @@ struct ShaderCreateInfo {
     return stream;
   }
 
+  bool has_resource_type(Resource::BindType bind_type) const
+  {
+    for (auto &res : batch_resources_) {
+      if (res.bind_type == bind_type) {
+        return true;
+      }
+    }
+    for (auto &res : pass_resources_) {
+      if (res.bind_type == bind_type) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  bool has_resource_image() const
+  {
+    return has_resource_type(Resource::BindType::IMAGE);
+  }
+
+  bool has_resource_storage() const
+  {
+    return has_resource_type(Resource::BindType::STORAGE_BUFFER);
+  }
+
   /** \} */
 
 #undef TEST_EQUAL
diff --git a/source/blender/gpu/intern/gpu_shader_interface.hh b/source/blender/gpu/intern/gpu_shader_interface.hh
index ac78af38fcc..60344757b43 100644
--- a/source/blender/gpu/intern/gpu_shader_interface.hh
+++ b/source/blender/gpu/intern/gpu_shader_interface.hh
@@ -39,9 +39,9 @@ class ShaderInterface {
   /* TODO(fclem): should be protected. */
  public:
   /** Flat array. In this order: Attributes, Ubos, Uniforms. */
-  ShaderInput *inputs_ = NULL;
+  ShaderInput *inputs_ = nullptr;
   /** Buffer containing all inputs names separated by '\0'. */
-  char *name_buffer_ = NULL;
+  char *name_buffer_ = nullptr;
   /** Input counts inside input array. */
   uint attr_len_ = 0;
   uint ubo_len_ = 0;
@@ -187,7 +187,7 @@ inline const char *ShaderInterface::builtin_uniform_name(GPUUniformBuiltin u)
       return "srgbTarget";
 
     default:
-      return NULL;
+      return nullptr;
   }
 }
 
@@ -208,7 +208,7 @@ inline const char *ShaderInterface::builtin_uniform_block_name(GPUUniformBlockBu
     case GPU_UNIFORM_BLOCK_DRW_INFOS:
       return "drw_infos";
     default:
-      return NULL;
+      return nullptr;
   }
 }
 
@@ -258,7 +258,7 @@ inline const ShaderInput *ShaderInterface::input_lookup(const ShaderInput *const
             return inputs + i; /* not found */
           }
         }
-        return NULL; /* not found */
+        return nullptr; /* not found */
       }
 
       /* This is a bit dangerous since we could have a hash collision.
@@ -268,7 +268,7 @@ inline const ShaderInput *ShaderInterface::input_lookup(const ShaderInput *const
       return inputs + i;
     }
   }
-  return NULL; /* not found */
+  return nullptr; /* not found */
 }
 
 inline const ShaderInput *ShaderInterface::input_lookup(const ShaderInput *const inputs,
@@ -281,7 +281,7 @@ inline const ShaderInput *ShaderInterface::input_lookup(const ShaderInput *const
       return inputs + i;
     }
   }
-  return NULL; /* not found */
+  return nullptr; /* not found */
 }
 
 }  // namespace blender::gpu
diff --git a/source/blender/gpu/intern/gpu_storage_buffer_private.hh b/source/blender/gpu/intern/gpu_storage_buffer_private.hh
index 091e6c2d386..9baec0c2a77 100644
--- a/source/blender/gpu/intern/gpu_storage_buffer_private.hh
+++ b/source/blender/gpu/intern/gpu_storage_buffer_private.hh
@@ -29,7 +29,7 @@ class StorageBuf {
   /** Data size in bytes. */
   size_t size_in_bytes_;
   /** Continuous memory block to copy to GPU. This data is owned by the StorageBuf. */
-  void *data_ = NULL;
+  void *data_ = nullptr;
   /** Debugging name */
   char name_[DEBUG_NAME_LEN];
 
diff --git a/source/blender/gpu/intern/gpu_uniform_buffer_private.hh b/source/blender/gpu/intern/gpu_uniform_buffer_private.hh
index 6e3285b6fef..e3d70634ce1 100644
--- a/source/blender/gpu/intern/gpu_uniform_buffer_private.hh
+++ b/source/blender/gpu/intern/gpu_uniform_buffer_private.hh
@@ -29,7 +29,7 @@ class UniformBuf {
   /** Data size in bytes. */
   size_t size_in_bytes_;
   /** Continuous memory block to copy to GPU. This data is owned by the UniformBuf. */
-  void *data_ = NULL;
+  void *data_ = nullptr;
   /** Debugging name */
   char name_[DEBUG_NAME_LEN];
 
diff --git a/source/blender/gpu/intern/gpu_vertex_buffer_private.hh b/source/blender/gpu/intern/gpu_vertex_buffer_private.hh
index 7a0b53cf958..a7920bacaec 100644
--- a/source/blender/gpu/intern/gpu_vertex_buffer_private.hh
+++ b/source/blender/gpu/intern/gpu_vertex_buffer_private.hh
@@ -29,7 +29,7 @@ class VertBuf {
   /** Status flag. */
   GPUVertBufStatus flag = GPU_VERTBUF_INVALID;
   /** NULL indicates data in VRAM (unmapped) */
-  uchar *data = NULL;
+  uchar *data = nullptr;
 
  protected:
   /** Usage hint for GL optimization. */
diff --git a/source/blender/gpu/metal/mtl_backend.hh b/source/blender/gpu/metal/mtl_backend.hh
index 7228a5f7596..3e09408e43e 100644
--- a/source/blender/gpu/metal/mtl_backend.hh
+++ b/source/blender/gpu/metal/mtl_backend.hh
@@ -40,6 +40,11 @@ class MTLBackend : public GPUBackend {
     MTLBackend::platform_exit();
   }
 
+  void delete_resources()
+  {
+    /* Delete any resources with context active. */
+  }
+
   static bool metal_is_supported();
   static MTLBackend *get()
   {
diff --git a/source/blender/gpu/metal/mtl_backend.mm b/source/blender/gpu/metal/mtl_backend.mm
index d2524cc16e3..3328855bbf8 100644
--- a/source/blender/gpu/metal/mtl_backend.mm
+++ b/source/blender/gpu/metal/mtl_backend.mm
@@ -10,6 +10,8 @@
 #include "mtl_backend.hh"
 #include "mtl_context.hh"
 #include "mtl_framebuffer.hh"
+#include "mtl_uniform_buffer.hh"
+#include "mtl_query.hh"
 
 #include "gpu_capabilities_private.hh"
 #include "gpu_platform_private.hh"
@@ -64,8 +66,7 @@ IndexBuf *MTLBackend::indexbuf_alloc()
 
 QueryPool *MTLBackend::querypool_alloc()
 {
-  /* TODO(Metal): Implement MTLQueryPool. */
-  return nullptr;
+  return new MTLQueryPool();
 };
 
 Shader *MTLBackend::shader_alloc(const char *name)
@@ -81,8 +82,7 @@ Texture *MTLBackend::texture_alloc(const char *name)
 
 UniformBuf *MTLBackend::uniformbuf_alloc(int size, const char *name)
 {
-  /* TODO(Metal): Implement MTLUniformBuf. */
-  return nullptr;
+  return new MTLUniformBuf(size, name);
 };
 
 StorageBuf *MTLBackend::storagebuf_alloc(int size, GPUUsageType usage, const char *name)
diff --git a/source/blender/gpu/metal/mtl_command_buffer.mm b/source/blender/gpu/metal/mtl_command_buffer.mm
index 7b6066b3d86..9a9a2d55103 100644
--- a/source/blender/gpu/metal/mtl_command_buffer.mm
+++ b/source/blender/gpu/metal/mtl_command_buffer.mm
@@ -308,6 +308,12 @@ id<MTLRenderCommandEncoder> MTLCommandBufferManager::ensure_begin_render_command
     active_pass_descriptor_ = active_frame_buffer_->bake_render_pass_descriptor(
         is_rebind && (!active_frame_buffer_->get_pending_clear()));
 
+    /* Determine if there is a visibility buffer assigned to the context. */
+    gpu::MTLBuffer *visibility_buffer = context_.get_visibility_buffer();
+    this->active_pass_descriptor_.visibilityResultBuffer =
+        (visibility_buffer) ? visibility_buffer->get_metal_buffer() : nil;
+    context_.clear_visibility_dirty();
+
     /* Ensure we have already cleaned up our previous render command encoder. */
     BLI_assert(active_render_command_encoder_ == nil);
 
diff --git a/source/blender/gpu/metal/mtl_context.hh b/source/blender/gpu/metal/mtl_context.hh
index 4b87b994a3d..0db87bf5da5 100644
--- a/source/blender/gpu/metal/mtl_context.hh
+++ b/source/blender/gpu/metal/mtl_context.hh
@@ -3,6 +3,9 @@
 /** \file
  * \ingroup gpu
  */
+
+#pragma once
+
 #include "MEM_guardedalloc.h"
 
 #include "gpu_context_private.hh"
@@ -588,6 +591,10 @@ class MTLContext : public Context {
   bool is_inside_frame_ = false;
   uint current_frame_index_;
 
+  /* Visibility buffer for MTLQuery results. */
+  gpu::MTLBuffer *visibility_buffer_ = nullptr;
+  bool visibility_is_dirty_ = false;
+
  public:
   /* Shaders and Pipeline state. */
   MTLContextGlobalShaderPipelineState pipeline_state;
@@ -619,6 +626,11 @@ class MTLContext : public Context {
 
   void memory_statistics_get(int *total_mem, int *free_mem) override;
 
+  static MTLContext *get()
+  {
+    return static_cast<MTLContext *>(Context::get());
+  }
+
   void debug_group_begin(const char *name, int index) override;
   void debug_group_end() override;
 
@@ -660,6 +672,18 @@ class MTLContext : public Context {
   void set_scissor(int scissor_x, int scissor_y, int scissor_width, int scissor_height);
   void set_scissor_enabled(bool scissor_enabled);
 
+  /* Visibility buffer control. */
+  void set_visibility_buffer(gpu::MTLBuffer *buffer);
+  gpu::MTLBuffer *get_visibility_buffer() const;
+
+  /* Flag whether the visibility buffer for query results
+   * has changed. This requires a new RenderPass in order
+   * to update.*/
+  bool is_visibility_dirty() const;
+
+  /* Reset dirty flag state for visibility buffer. */
+  void clear_visibility_dirty();
+
   /* Texture utilities. */
   MTLContextTextureUtils &get_texture_utils()
   {
diff --git a/source/blender/gpu/metal/mtl_context.mm b/source/blender/gpu/metal/mtl_context.mm
index 2ab2e20158a..26cfe6632ef 100644
--- a/source/blender/gpu/metal/mtl_context.mm
+++ b/source/blender/gpu/metal/mtl_context.mm
@@ -188,7 +188,8 @@ id<MTLRenderCommandEncoder> MTLContext::ensure_begin_render_pass()
    * framebuffer state has been modified (is_dirty). */
   if (!this->main_command_buffer.is_inside_render_pass() ||
       this->active_fb != this->main_command_buffer.get_active_framebuffer() ||
-      this->main_command_buffer.get_active_framebuffer()->get_dirty()) {
+      this->main_command_buffer.get_active_framebuffer()->get_dirty() ||
+      this->is_visibility_dirty()) {
 
     /* Validate bound framebuffer before beginning render pass. */
     if (!static_cast<MTLFrameBuffer *>(this->active_fb)->validate_render_pass()) {
@@ -372,6 +373,45 @@ void MTLContext::set_scissor_enabled(bool scissor_enabled)
 /** \} */
 
 /* -------------------------------------------------------------------- */
+/** \name Visibility buffer control for MTLQueryPool.
+ * \{ */
+
+void MTLContext::set_visibility_buffer(gpu::MTLBuffer *buffer)
+{
+  /* Flag visibility buffer as dirty if the buffer being used for visibility has changed --
+   * This is required by the render pass, and we will break the pass if the results destination
+   * buffer is modified. */
+  if (buffer) {
+    visibility_is_dirty_ = (buffer != visibility_buffer_) || visibility_is_dirty_;
+    visibility_buffer_ = buffer;
+    visibility_buffer_->debug_ensure_used();
+  }
+  else {
+    /* If buffer is null, reset visibility state, mark dirty to break render pass if results are no
+     * longer needed. */
+    visibility_is_dirty_ = (visibility_buffer_ != nullptr) || visibility_is_dirty_;
+    visibility_buffer_ = nullptr;
+  }
+}
+
+gpu::MTLBuffer *MTLContext::get_visibility_buffer() const
+{
+  return visibility_buffer_;
+}
+
+void MTLContext::clear_visibility_dirty()
+{
+  visibility_is_dirty_ = false;
+}
+
+bool MTLContext::is_visibility_dirty() const
+{
+  return visibility_is_dirty_;
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
 /** \name Texture State Management
  * \{ */
 
diff --git a/source/blender/gpu/metal/mtl_memory.hh b/source/blender/gpu/metal/mtl_memory.hh
index daa049e78af..dc5417dc11a 100644
--- a/source/blender/gpu/metal/mtl_memory.hh
+++ b/source/blender/gpu/metal/mtl_memory.hh
@@ -78,8 +78,10 @@
  *  Usage:
  *    MTLContext::get_global_memory_manager();  - static routine to fetch global memory manager.
  *
- *    gpu::MTLBuffer *allocate_buffer(size, is_cpu_visibile, bytes=nullptr)
- *    gpu::MTLBuffer *allocate_buffer_aligned(size, alignment, is_cpu_visibile, bytes=nullptr)
+ *    gpu::MTLBuffer *allocate(size, is_cpu_visibile)
+ *    gpu::MTLBuffer *allocate_aligned(size, alignment, is_cpu_visibile)
+ *    gpu::MTLBuffer *allocate_with_data(size, is_cpu_visibile, data_ptr)
+ *    gpu::MTLBuffer *allocate_aligned_with_data(size, alignment, is_cpu_visibile, data_ptr)
  */
 
 /* Debug memory statistics: Disabled by Macro rather than guarded for
@@ -389,11 +391,13 @@ class MTLBufferPool {
   void init(id<MTLDevice> device);
   ~MTLBufferPool();
 
-  gpu::MTLBuffer *allocate_buffer(uint64_t size, bool cpu_visible, const void *bytes = nullptr);
-  gpu::MTLBuffer *allocate_buffer_aligned(uint64_t size,
-                                          uint alignment,
-                                          bool cpu_visible,
-                                          const void *bytes = nullptr);
+  gpu::MTLBuffer *allocate(uint64_t size, bool cpu_visible);
+  gpu::MTLBuffer *allocate_aligned(uint64_t size, uint alignment, bool cpu_visible);
+  gpu::MTLBuffer *allocate_with_data(uint64_t size, bool cpu_visible, const void *data = nullptr);
+  gpu::MTLBuffer *allocate_aligned_with_data(uint64_t size,
+                                             uint alignment,
+                                             bool cpu_visible,
+                                             const void *data = nullptr);
   bool free_buffer(gpu::MTLBuffer *buffer);
 
   /* Flush MTLSafeFreeList buffers, for completed lists in `completed_safelist_queue_`,
diff --git a/source/blender/gpu/metal/mtl_memory.mm b/source/blender/gpu/metal/mtl_memory.mm
index e5db32ed1b1..48e27dd2bb6 100644
--- a/source/blender/gpu/metal/mtl_memory.mm
+++ b/source/blender/gpu/metal/mtl_memory.mm
@@ -57,17 +57,23 @@ void MTLBufferPool::free()
   buffer_pools_.clear();
 }
 
-gpu::MTLBuffer *MTLBufferPool::allocate_buffer(uint64_t size, bool cpu_visible, const void *bytes)
+gpu::MTLBuffer *MTLBufferPool::allocate(uint64_t size, bool cpu_visible)
 {
   /* Allocate buffer with default HW-compatible alignment of 256 bytes.
    * See https://developer.apple.com/metal/Metal-Feature-Set-Tables.pdf for more. */
-  return this->allocate_buffer_aligned(size, 256, cpu_visible, bytes);
+  return this->allocate_aligned(size, 256, cpu_visible);
 }
 
-gpu::MTLBuffer *MTLBufferPool::allocate_buffer_aligned(uint64_t size,
-                                                       uint alignment,
-                                                       bool cpu_visible,
-                                                       const void *bytes)
+gpu::MTLBuffer *MTLBufferPool::allocate_with_data(uint64_t size,
+                                                  bool cpu_visible,
+                                                  const void *data)
+{
+  /* Allocate buffer with default HW-compatible alignemnt of 256 bytes.
+   * See https://developer.apple.com/metal/Metal-Feature-Set-Tables.pdf for more. */
+  return this->allocate_aligned_with_data(size, 256, cpu_visible, data);
+}
+
+gpu::MTLBuffer *MTLBufferPool::allocate_aligned(uint64_t size, uint alignment, bool cpu_visible)
 {
   /* Check not required. Main GPU module usage considered thread-safe. */
   // BLI_assert(BLI_thread_is_main());
@@ -153,15 +159,6 @@ gpu::MTLBuffer *MTLBufferPool::allocate_buffer_aligned(uint64_t size,
   /* Flag buffer as actively in-use. */
   new_buffer->flag_in_use(true);
 
-  /* Upload initial data if provided -- Size based on original size param, not aligned size*/
-  if (bytes) {
-    BLI_assert(!(options & MTLResourceStorageModePrivate));
-    BLI_assert(size <= aligned_alloc_size);
-    BLI_assert(size <= [new_buffer->get_metal_buffer() length]);
-    memcpy(new_buffer->get_host_ptr(), bytes, size);
-    new_buffer->flush_range(0, size);
-  }
-
 #if MTL_DEBUG_MEMORY_STATISTICS == 1
   this->per_frame_allocation_count++;
 #endif
@@ -169,6 +166,23 @@ gpu::MTLBuffer *MTLBufferPool::allocate_buffer_aligned(uint64_t size,
   return new_buffer;
 }
 
+gpu::MTLBuffer *MTLBufferPool::allocate_aligned_with_data(uint64_t size,
+                                                          uint alignment,
+                                                          bool cpu_visible,
+                                                          const void *data)
+{
+  gpu::MTLBuffer *buf = this->allocate_aligned(size, 256, cpu_visible);
+
+  /* Upload initial data. */
+  BLI_assert(data != nullptr);
+  BLI_assert(!(buf->get_resource_options() & MTLResourceStorageModePrivate));
+  BLI_assert(size <= buf->get_size());
+  BLI_assert(size <= [buf->get_metal_buffer() length]);
+  memcpy(buf->get_host_ptr(), data, size);
+  buf->flush_range(0, size);
+  return buf;
+}
+
 bool MTLBufferPool::free_buffer(gpu::MTLBuffer *buffer)
 {
   /* Ensure buffer is flagged as in-use. I.e. has not already been returned to memory pools. */
@@ -356,7 +370,7 @@ void MTLBufferPool::insert_buffer_into_pool(MTLResourceOptions options, gpu::MTL
 
 #if MTL_DEBUG_MEMORY_STATISTICS == 1
   /* Debug statistics. */
-  allocations_in_pool_ += buffer->size;
+  allocations_in_pool_ += buffer->get_size();
   buffers_in_pool_++;
 #endif
 }
@@ -413,7 +427,7 @@ void MTLSafeFreeList::decrement_reference()
 {
   lock_.lock();
   BLI_assert(in_free_queue_ == false);
-  int ref_count = reference_count_--;
+  int ref_count = --reference_count_;
 
   if (ref_count == 0) {
     MTLContext::get_global_memory_manager().push_completed_safe_list(this);
diff --git a/source/blender/gpu/metal/mtl_query.hh b/source/blender/gpu/metal/mtl_query.hh
new file mode 100644
index 00000000000..c1ec9a2a0f5
--- /dev/null
+++ b/source/blender/gpu/metal/mtl_query.hh
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup gpu
+ */
+
+#pragma once
+
+#include "BLI_vector.hh"
+
+#include "gpu_query.hh"
+#include "mtl_context.hh"
+
+namespace blender::gpu {
+
+class MTLQueryPool : public QueryPool {
+ private:
+  /** Number of queries that have been issued since last initialization.
+   * Should be equal to query_ids_.size(). */
+  uint32_t query_issued_;
+  /** Type of this query pool. */
+  GPUQueryType type_;
+  /** Can only be initialized once. */
+  bool initialized_ = false;
+  MTLVisibilityResultMode mtl_type_;
+  Vector<gpu::MTLBuffer *> buffer_;
+
+  void allocate_buffer();
+
+ public:
+  MTLQueryPool();
+  ~MTLQueryPool();
+
+  void init(GPUQueryType type) override;
+
+  void begin_query() override;
+  void end_query() override;
+
+  void get_occlusion_result(MutableSpan<uint32_t> r_values) override;
+};
+}  // namespace blender::gpu
diff --git a/source/blender/gpu/metal/mtl_query.mm b/source/blender/gpu/metal/mtl_query.mm
new file mode 100644
index 00000000000..33ae8f554c3
--- /dev/null
+++ b/source/blender/gpu/metal/mtl_query.mm
@@ -0,0 +1,122 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup gpu
+ */
+
+#include "mtl_query.hh"
+
+namespace blender::gpu {
+
+static const size_t VISIBILITY_COUNT_PER_BUFFER = 512;
+/* defined in the documentation but not queryable programmatically:
+ * https://developer.apple.com/documentation/metal/mtlvisibilityresultmode/mtlvisibilityresultmodeboolean?language=objc
+ */
+static const size_t VISIBILITY_RESULT_SIZE_IN_BYTES = 8;
+
+MTLQueryPool::MTLQueryPool()
+{
+  allocate_buffer();
+}
+MTLQueryPool::~MTLQueryPool()
+{
+  for (gpu::MTLBuffer *buf : buffer_) {
+    BLI_assert(buf);
+    buf->free();
+  }
+}
+
+void MTLQueryPool::allocate_buffer()
+{
+  /* Allocate Metal buffer for visibility results. */
+  size_t buffer_size_in_bytes = VISIBILITY_COUNT_PER_BUFFER * VISIBILITY_RESULT_SIZE_IN_BYTES;
+  gpu::MTLBuffer *buffer = MTLContext::get_global_memory_manager().allocate_buffer(
+      buffer_size_in_bytes, true);
+  BLI_assert(buffer);
+  buffer_.append(buffer);
+}
+
+static inline MTLVisibilityResultMode to_mtl_type(GPUQueryType type)
+{
+  if (type == GPU_QUERY_OCCLUSION) {
+    return MTLVisibilityResultModeBoolean;
+  }
+  BLI_assert(0);
+  return MTLVisibilityResultModeBoolean;
+}
+
+void MTLQueryPool::init(GPUQueryType type)
+{
+  BLI_assert(initialized_ == false);
+  initialized_ = true;
+  type_ = type;
+  mtl_type_ = to_mtl_type(type);
+  query_issued_ = 0;
+}
+
+void MTLQueryPool::begin_query()
+{
+  MTLContext *ctx = reinterpret_cast<MTLContext *>(GPU_context_active_get());
+
+  /* Ensure our allocated buffer pool has enough space for the current queries. */
+  int query_id = query_issued_;
+  int requested_buffer = query_id / VISIBILITY_COUNT_PER_BUFFER;
+  if (requested_buffer >= buffer_.size()) {
+    allocate_buffer();
+  }
+
+  BLI_assert(requested_buffer < buffer_.size());
+  gpu::MTLBuffer *buffer = buffer_[requested_buffer];
+
+  /* Ensure visibility buffer is set on the context. If visibility buffer changes,
+   * we need to begin a new render pass with an updated reference in the
+   * MTLRenderPassDescriptor. */
+  ctx->set_visibility_buffer(buffer);
+
+  ctx->ensure_begin_render_pass();
+  id<MTLRenderCommandEncoder> rec = ctx->main_command_buffer.get_active_render_command_encoder();
+  [rec setVisibilityResultMode:mtl_type_
+                        offset:(query_id % VISIBILITY_COUNT_PER_BUFFER) *
+                               VISIBILITY_RESULT_SIZE_IN_BYTES];
+  query_issued_ += 1;
+}
+
+void MTLQueryPool::end_query()
+{
+  MTLContext *ctx = reinterpret_cast<MTLContext *>(GPU_context_active_get());
+
+  id<MTLRenderCommandEncoder> rec = ctx->main_command_buffer.get_active_render_command_encoder();
+  [rec setVisibilityResultMode:MTLVisibilityResultModeDisabled offset:0];
+}
+
+void MTLQueryPool::get_occlusion_result(MutableSpan<uint32_t> r_values)
+{
+  MTLContext *ctx = reinterpret_cast<MTLContext *>(GPU_context_active_get());
+
+  /* Create a blit encoder to synchronize the query buffer results between
+   * GPU and CPU when not using shared-memory. */
+  if ([ctx->device hasUnifiedMemory] == false) {
+    id<MTLBlitCommandEncoder> blit_encoder = ctx->main_command_buffer.ensure_begin_blit_encoder();
+    BLI_assert(blit_encoder);
+    for (gpu::MTLBuffer *buf : buffer_) {
+      [blit_encoder synchronizeResource:buf->get_metal_buffer()];
+    }
+    BLI_assert(ctx->get_inside_frame());
+  }
+
+  /* Wait for GPU operatiosn to complete and for query buffer contents
+   * to be synchronised back to host memory. */
+  GPU_finish();
+
+  /* Iterate through all possible visibility buffers and copy results into provided
+   * container. */
+  for (const int i : IndexRange(query_issued_)) {
+    int requested_buffer = i / VISIBILITY_COUNT_PER_BUFFER;
+    const uint64_t *queries = static_cast<const uint64_t *>(
+        buffer_[requested_buffer]->get_host_ptr());
+    r_values[i] = static_cast<uint32_t>(queries[i % VISIBILITY_COUNT_PER_BUFFER]);
+  }
+  ctx->set_visibility_buffer(nullptr);
+}
+
+}  // namespace blender::gpu
diff --git a/source/blender/gpu/metal/mtl_texture.hh b/source/blender/gpu/metal/mtl_texture.hh
index 9387d5af814..82a7a20a310 100644
--- a/source/blender/gpu/metal/mtl_texture.hh
+++ b/source/blender/gpu/metal/mtl_texture.hh
@@ -93,7 +93,7 @@ struct TextureReadRoutineSpecialisation {
    * 0 = Not a Depth format,
    * 1 = FLOAT DEPTH,
    * 2 = 24Bit Integer Depth,
-   * 4 = 32bit uinteger Depth. */
+   * 4 = 32bit Unsigned-Integer Depth. */
   int depth_format_mode;
 
   bool operator==(const TextureReadRoutineSpecialisation &other) const
diff --git a/source/blender/gpu/metal/mtl_uniform_buffer.hh b/source/blender/gpu/metal/mtl_uniform_buffer.hh
new file mode 100644
index 00000000000..722d819cf96
--- /dev/null
+++ b/source/blender/gpu/metal/mtl_uniform_buffer.hh
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup gpu
+ */
+
+#pragma once
+
+#include "MEM_guardedalloc.h"
+#include "gpu_uniform_buffer_private.hh"
+
+#include "mtl_context.hh"
+
+namespace blender::gpu {
+
+/**
+ * Implementation of Uniform Buffers using Metal.
+ **/
+class MTLUniformBuf : public UniformBuf {
+ private:
+  /* Allocation Handle. */
+  gpu::MTLBuffer *metal_buffer_ = nullptr;
+
+  /* Whether buffer has contents, if false, no GPU buffer will
+   * have yet been allocated. */
+  bool has_data_ = false;
+
+  /* Bindstate tracking. */
+  int bind_slot_ = -1;
+  MTLContext *bound_ctx_ = nullptr;
+
+ public:
+  MTLUniformBuf(size_t size, const char *name);
+  ~MTLUniformBuf();
+
+  void update(const void *data) override;
+  void bind(int slot) override;
+  void unbind() override;
+
+  id<MTLBuffer> get_metal_buffer(int *r_offset);
+  int get_size();
+  const char *get_name()
+  {
+    return name_;
+  }
+
+  MEM_CXX_CLASS_ALLOC_FUNCS("MTLUniformBuf");
+};
+
+}  // namespace blender::gpu
diff --git a/source/blender/gpu/metal/mtl_uniform_buffer.mm b/source/blender/gpu/metal/mtl_uniform_buffer.mm
new file mode 100644
index 00000000000..3415c41f2cc
--- /dev/null
+++ b/source/blender/gpu/metal/mtl_uniform_buffer.mm
@@ -0,0 +1,162 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup gpu
+ */
+
+#include "BKE_global.h"
+
+#include "BLI_string.h"
+
+#include "gpu_backend.hh"
+#include "gpu_context_private.hh"
+
+#include "mtl_backend.hh"
+#include "mtl_context.hh"
+#include "mtl_debug.hh"
+#include "mtl_uniform_buffer.hh"
+
+namespace blender::gpu {
+
+MTLUniformBuf::MTLUniformBuf(size_t size, const char *name) : UniformBuf(size, name)
+{
+}
+
+MTLUniformBuf::~MTLUniformBuf()
+{
+  if (metal_buffer_ != nullptr) {
+    metal_buffer_->free();
+    metal_buffer_ = nullptr;
+  }
+  has_data_ = false;
+
+  /* Ensure UBO is not bound to active CTX.
+   * UBO bindings are reset upon Context-switch so we do not need
+   * to check deactivated context's. */
+  MTLContext *ctx = MTLContext::get();
+  if (ctx) {
+    for (int i = 0; i < MTL_MAX_UNIFORM_BUFFER_BINDINGS; i++) {
+      MTLUniformBufferBinding &slot = ctx->pipeline_state.ubo_bindings[i];
+      if (slot.bound && slot.ubo == this) {
+        slot.bound = false;
+        slot.ubo = nullptr;
+      }
+    }
+  }
+}
+
+void MTLUniformBuf::update(const void *data)
+{
+  BLI_assert(this);
+  BLI_assert(size_in_bytes_ > 0);
+
+  /* Free existing allocation.
+   * The previous UBO resource will be tracked by the memory manager,
+   * in case dependent GPU work is still executing. */
+  if (metal_buffer_ != nullptr) {
+    metal_buffer_->free();
+    metal_buffer_ = nullptr;
+  }
+
+  /* Allocate MTL buffer */
+  MTLContext *ctx = static_cast<MTLContext *>(unwrap(GPU_context_active_get()));
+  BLI_assert(ctx);
+  BLI_assert(ctx->device);
+  UNUSED_VARS_NDEBUG(ctx);
+
+  if (data != nullptr) {
+    metal_buffer_ = MTLContext::get_global_memory_manager().allocate_with_data(
+        size_in_bytes_, true, data);
+    has_data_ = true;
+
+    metal_buffer_->set_label(@"Uniform Buffer");
+    BLI_assert(metal_buffer_ != nullptr);
+    BLI_assert(metal_buffer_->get_metal_buffer() != nil);
+  }
+  else {
+    /* If data is not yet present, no buffer will be allocated and MTLContext will use an empty
+     * null buffer, containing zeroes, if the UBO is bound. */
+    metal_buffer_ = nullptr;
+    has_data_ = false;
+  }
+}
+
+void MTLUniformBuf::bind(int slot)
+{
+  if (slot < 0) {
+    MTL_LOG_WARNING("Failed to bind UBO %p. uniform location %d invalid.\n", this, slot);
+    return;
+  }
+
+  BLI_assert(slot < MTL_MAX_UNIFORM_BUFFER_BINDINGS);
+
+  /* Bind current UBO to active context. */
+  MTLContext *ctx = MTLContext::get();
+  BLI_assert(ctx);
+
+  MTLUniformBufferBinding &ctx_ubo_bind_slot = ctx->pipeline_state.ubo_bindings[slot];
+  ctx_ubo_bind_slot.ubo = this;
+  ctx_ubo_bind_slot.bound = true;
+
+  bind_slot_ = slot;
+  bound_ctx_ = ctx;
+
+  /* Check if we have any deferred data to upload. */
+  if (data_ != nullptr) {
+    this->update(data_);
+    MEM_SAFE_FREE(data_);
+  }
+
+  /* Ensure there is atleast an empty dummy buffer. */
+  if (metal_buffer_ == nullptr) {
+    this->update(nullptr);
+  }
+}
+
+void MTLUniformBuf::unbind()
+{
+  /* Unbind in debug mode to validate missing binds.
+   * Otherwise, only perform a full unbind upon destruction
+   * to ensure no lingering references. */
+#ifndef NDEBUG
+  if (true) {
+#else
+  if (G.debug & G_DEBUG_GPU) {
+#endif
+    if (bound_ctx_ != nullptr && bind_slot_ > -1) {
+      MTLUniformBufferBinding &ctx_ubo_bind_slot =
+          bound_ctx_->pipeline_state.ubo_bindings[bind_slot_];
+      if (ctx_ubo_bind_slot.bound && ctx_ubo_bind_slot.ubo == this) {
+        ctx_ubo_bind_slot.bound = false;
+        ctx_ubo_bind_slot.ubo = nullptr;
+      }
+    }
+  }
+
+  /* Reset bind index. */
+  bind_slot_ = -1;
+  bound_ctx_ = nullptr;
+}
+
+id<MTLBuffer> MTLUniformBuf::get_metal_buffer(int *r_offset)
+{
+  BLI_assert(this);
+  *r_offset = 0;
+  if (metal_buffer_ != nullptr && has_data_) {
+    *r_offset = 0;
+    metal_buffer_->debug_ensure_used();
+    return metal_buffer_->get_metal_buffer();
+  }
+  else {
+    *r_offset = 0;
+    return nil;
+  }
+}
+
+int MTLUniformBuf::get_size()
+{
+  BLI_assert(this);
+  return size_in_bytes_;
+}
+
+}  // blender::gpu
diff --git a/source/blender/gpu/opengl/gl_backend.hh b/source/blender/gpu/opengl/gl_backend.hh
index 29249111294..e425b87afe8 100644
--- a/source/blender/gpu/opengl/gl_backend.hh
+++ b/source/blender/gpu/opengl/gl_backend.hh
@@ -42,11 +42,15 @@ class GLBackend : public GPUBackend {
   }
   ~GLBackend()
   {
-    GLTexture::samplers_free();
-
     GLBackend::platform_exit();
   }
 
+  void delete_resources() override
+  {
+    /* Delete any resources with context active. */
+    GLTexture::samplers_free();
+  }
+
   static GLBackend *get()
   {
     return static_cast<GLBackend *>(GPUBackend::get());
diff --git a/source/blender/gpu/opengl/gl_batch.hh b/source/blender/gpu/opengl/gl_batch.hh
index a25e495b3b1..1a18572c683 100644
--- a/source/blender/gpu/opengl/gl_batch.hh
+++ b/source/blender/gpu/opengl/gl_batch.hh
@@ -35,9 +35,9 @@ class GLShaderInterface;
 class GLVaoCache {
  private:
   /** Context for which the vao_cache_ was generated. */
-  GLContext *context_ = NULL;
+  GLContext *context_ = nullptr;
   /** Last interface this batch was drawn with. */
-  GLShaderInterface *interface_ = NULL;
+  GLShaderInterface *interface_ = nullptr;
   /** Cached VAO for the last interface. */
   GLuint vao_id_ = 0;
   /** Used when arb_base_instance is not supported. */
diff --git a/source/blender/gpu/opengl/gl_debug.cc b/source/blender/gpu/opengl/gl_debug.cc
index f82138e0d65..79b28642a67 100644
--- a/source/blender/gpu/opengl/gl_debug.cc
+++ b/source/blender/gpu/opengl/gl_debug.cc
@@ -189,7 +189,7 @@ void check_gl_error(const char *info)
   case err: { \
     char msg[256]; \
     SNPRINTF(msg, "%s : %s", #err, info); \
-    debug_callback(0, GL_DEBUG_TYPE_ERROR, 0, GL_DEBUG_SEVERITY_HIGH, 0, msg, NULL); \
+    debug_callback(0, GL_DEBUG_TYPE_ERROR, 0, GL_DEBUG_SEVERITY_HIGH, 0, msg, nullptr); \
     break; \
   }
 
diff --git a/source/blender/gpu/opengl/gl_framebuffer.hh b/source/blender/gpu/opengl/gl_framebuffer.hh
index 224c7a92c0a..2dc0936d0fe 100644
--- a/source/blender/gpu/opengl/gl_framebuffer.hh
+++ b/source/blender/gpu/opengl/gl_framebuffer.hh
@@ -30,9 +30,9 @@ class GLFrameBuffer : public FrameBuffer {
   /** OpenGL handle. */
   GLuint fbo_id_ = 0;
   /** Context the handle is from. Frame-buffers are not shared across contexts. */
-  GLContext *context_ = NULL;
+  GLContext *context_ = nullptr;
   /** State Manager of the same contexts. */
-  GLStateManager *state_manager_ = NULL;
+  GLStateManager *state_manager_ = nullptr;
   /** Copy of the GL state. Contains ONLY color attachments enums for slot binding. */
   GLenum gl_attachments_[GPU_FB_MAX_COLOR_ATTACHMENT];
   /** Internal frame-buffers are immutable. */
diff --git a/source/blender/gpu/opengl/gl_texture.cc b/source/blender/gpu/opengl/gl_texture.cc
index 055c8d104e2..cfb3184c4a5 100644
--- a/source/blender/gpu/opengl/gl_texture.cc
+++ b/source/blender/gpu/opengl/gl_texture.cc
@@ -310,6 +310,12 @@ void GLTexture::update_sub(
  */
 void GLTexture::generate_mipmap()
 {
+  /* Allow users to provide mipmaps stored in compressed textures.
+   * Skip generating mipmaps to avoid overriding the existing ones. */
+  if (format_flag_ & GPU_FORMAT_COMPRESSED) {
+    return;
+  }
+
   /* Some drivers have bugs when using #glGenerateMipmap with depth textures (see T56789).
    * In this case we just create a complete texture with mipmaps manually without
    * down-sampling. You must initialize the texture levels using other methods like
diff --git a/source/blender/gpu/opengl/gl_texture.hh b/source/blender/gpu/opengl/gl_texture.hh
index e5b879f1f15..aeb9fc0e6b7 100644
--- a/source/blender/gpu/opengl/gl_texture.hh
+++ b/source/blender/gpu/opengl/gl_texture.hh
@@ -33,7 +33,7 @@ class GLTexture : public Texture {
   /** opengl identifier for texture. */
   GLuint tex_id_ = 0;
   /** Legacy workaround for texture copy. Created when using framebuffer_get(). */
-  struct GPUFrameBuffer *framebuffer_ = NULL;
+  struct GPUFrameBuffer *framebuffer_ = nullptr;
   /** True if this texture is bound to at least one texture unit. */
   /* TODO(fclem): How do we ensure thread safety here? */
   bool is_bound_ = false;
diff --git a/source/blender/gpu/tests/gpu_testing.cc b/source/blender/gpu/tests/gpu_testing.cc
index 4e93e062b50..224a9afcf59 100644
--- a/source/blender/gpu/tests/gpu_testing.cc
+++ b/source/blender/gpu/tests/gpu_testing.cc
@@ -26,7 +26,6 @@ void GPUTest::SetUp()
 void GPUTest::TearDown()
 {
   GPU_exit();
-  GPU_backend_exit();
   GPU_context_discard(context);
   GHOST_DisposeOpenGLContext(ghost_system, ghost_context);
   GHOST_DisposeSystem(ghost_system);
diff --git a/source/blender/imbuf/intern/colormanagement.c b/source/blender/imbuf/intern/colormanagement.c
index b95ec1cd92b..b62bdd5521d 100644
--- a/source/blender/imbuf/intern/colormanagement.c
+++ b/source/blender/imbuf/intern/colormanagement.c
@@ -2213,10 +2213,11 @@ void IMB_colormanagement_imbuf_to_byte_texture(unsigned char *out_buffer,
                                                const struct ImBuf *ibuf,
                                                const bool store_premultiplied)
 {
-  /* Byte buffer storage, only for sRGB and data texture since other
+  /* Byte buffer storage, only for sRGB, scene linear and data texture since other
    * color space conversions can't be done on the GPU. */
   BLI_assert(ibuf->rect && ibuf->rect_float == NULL);
   BLI_assert(IMB_colormanagement_space_is_srgb(ibuf->rect_colorspace) ||
+             IMB_colormanagement_space_is_scene_linear(ibuf->rect_colorspace) ||
              IMB_colormanagement_space_is_data(ibuf->rect_colorspace));
 
   const unsigned char *in_buffer = (unsigned char *)ibuf->rect;
diff --git a/source/blender/imbuf/intern/divers.c b/source/blender/imbuf/intern/divers.c
index 588c92d748d..13c8f0887b3 100644
--- a/source/blender/imbuf/intern/divers.c
+++ b/source/blender/imbuf/intern/divers.c
@@ -695,9 +695,6 @@ void IMB_buffer_byte_from_byte(uchar *rect_to,
 
 void IMB_rect_from_float(ImBuf *ibuf)
 {
-  float *buffer;
-  const char *from_colorspace;
-
   /* verify we have a float buffer */
   if (ibuf->rect_float == NULL) {
     return;
@@ -710,24 +707,21 @@ void IMB_rect_from_float(ImBuf *ibuf)
     }
   }
 
-  if (ibuf->float_colorspace == NULL) {
-    from_colorspace = IMB_colormanagement_role_colorspace_name_get(COLOR_ROLE_SCENE_LINEAR);
-  }
-  else {
-    from_colorspace = ibuf->float_colorspace->name;
-  }
+  const char *from_colorspace = (ibuf->float_colorspace == NULL) ?
+                                    IMB_colormanagement_role_colorspace_name_get(
+                                        COLOR_ROLE_SCENE_LINEAR) :
+                                    ibuf->float_colorspace->name;
+  const char *to_colorspace = (ibuf->rect_colorspace == NULL) ?
+                                  IMB_colormanagement_role_colorspace_name_get(
+                                      COLOR_ROLE_DEFAULT_BYTE) :
+                                  ibuf->rect_colorspace->name;
 
-  buffer = MEM_dupallocN(ibuf->rect_float);
+  float *buffer = MEM_dupallocN(ibuf->rect_float);
 
   /* first make float buffer in byte space */
   const bool predivide = IMB_alpha_affects_rgb(ibuf);
-  IMB_colormanagement_transform(buffer,
-                                ibuf->x,
-                                ibuf->y,
-                                ibuf->channels,
-                                from_colorspace,
-                                ibuf->rect_colorspace->name,
-                                predivide);
+  IMB_colormanagement_transform(
+      buffer, ibuf->x, ibuf->y, ibuf->channels, from_colorspace, to_colorspace, predivide);
 
   /* convert from float's premul alpha to byte's straight alpha */
   if (IMB_alpha_affects_rgb(ibuf)) {
diff --git a/source/blender/imbuf/intern/indexer.c b/source/blender/imbuf/intern/indexer.c
index cbc5d984755..00396c01d99 100644
--- a/source/blender/imbuf/intern/indexer.c
+++ b/source/blender/imbuf/intern/indexer.c
@@ -1098,6 +1098,7 @@ static int indexer_performance_get_decode_rate(FFmpegIndexBuilderContext *contex
 
   while (av_read_frame(context->iFormatCtx, packet) >= 0) {
     if (packet->stream_index != context->videoStream) {
+      av_packet_unref(packet);
       continue;
     }
 
@@ -1121,6 +1122,7 @@ static int indexer_performance_get_decode_rate(FFmpegIndexBuilderContext *contex
     if (end > start + time_period) {
       break;
     }
+    av_packet_unref(packet);
   }
 
   av_packet_free(&packet);
@@ -1145,6 +1147,7 @@ static int indexer_performance_get_max_gop_size(FFmpegIndexBuilderContext *conte
 
   while (av_read_frame(context->iFormatCtx, packet) >= 0) {
     if (packet->stream_index != context->videoStream) {
+      av_packet_unref(packet);
       continue;
     }
     packet_index++;
@@ -1158,6 +1161,7 @@ static int indexer_performance_get_max_gop_size(FFmpegIndexBuilderContext *conte
     if (packet_index > packets_max) {
       break;
     }
+    av_packet_unref(packet);
   }
 
   av_packet_free(&packet);
diff --git a/source/blender/io/collada/AnimationImporter.cpp b/source/blender/io/collada/AnimationImporter.cpp
index 923a392dbde..cc91c3eeac9 100644
--- a/source/blender/io/collada/AnimationImporter.cpp
+++ b/source/blender/io/collada/AnimationImporter.cpp
@@ -64,7 +64,7 @@ void AnimationImporter::add_bezt(FCurve *fcu,
   bez.f1 = bez.f2 = bez.f3 = SELECT;
   bez.h1 = bez.h2 = HD_AUTO;
   insert_bezt_fcurve(fcu, &bez, INSERTKEY_NOFLAGS);
-  calchandles_fcurve(fcu);
+  BKE_fcurve_handles_recalc(fcu);
 }
 
 void AnimationImporter::animation_to_fcurves(COLLADAFW::AnimationCurve *curve)
@@ -132,7 +132,7 @@ void AnimationImporter::animation_to_fcurves(COLLADAFW::AnimationCurve *curve)
           insert_bezt_fcurve(fcu, &bez, INSERTKEY_NOFLAGS);
         }
 
-        calchandles_fcurve(fcu);
+        BKE_fcurve_handles_recalc(fcu);
 
         fcurves.push_back(fcu);
         unused_curves.push_back(fcu);
diff --git a/source/blender/io/collada/BCAnimationCurve.cpp b/source/blender/io/collada/BCAnimationCurve.cpp
index fbb2ba499a5..04a7a81c0a6 100644
--- a/source/blender/io/collada/BCAnimationCurve.cpp
+++ b/source/blender/io/collada/BCAnimationCurve.cpp
@@ -96,7 +96,7 @@ void BCAnimationCurve::create_bezt(float frame, float output)
   bez.f1 = bez.f2 = bez.f3 = SELECT;
   bez.h1 = bez.h2 = HD_AUTO;
   insert_bezt_fcurve(fcu, &bez, INSERTKEY_NOFLAGS);
-  calchandles_fcurve(fcu);
+  BKE_fcurve_handles_recalc(fcu);
 }
 
 BCAnimationCurve::~BCAnimationCurve()
diff --git a/source/blender/io/gpencil/intern/gpencil_io_base.cc b/source/blender/io/gpencil/intern/gpencil_io_base.cc
index 05f1158c57d..6db3eccedbe 100644
--- a/source/blender/io/gpencil/intern/gpencil_io_base.cc
+++ b/source/blender/io/gpencil/intern/gpencil_io_base.cc
@@ -91,8 +91,7 @@ void GpencilIO::prepare_camera_params(Scene *scene, const GpencilIOParams *ipara
 
   /* Camera rectangle. */
   if ((rv3d_->persp == RV3D_CAMOB) || (force_camera_view)) {
-    render_x_ = (scene_->r.xsch * scene_->r.size) / 100;
-    render_y_ = (scene_->r.ysch * scene_->r.size) / 100;
+    BKE_render_resolution(&scene->r, false, &render_x_, &render_y_);
 
     ED_view3d_calc_camera_border(CTX_data_scene(params_.C),
                                  depsgraph_,
diff --git a/source/blender/io/gpencil/intern/gpencil_io_base.hh b/source/blender/io/gpencil/intern/gpencil_io_base.hh
index a89b723ed6c..4987ab34ffc 100644
--- a/source/blender/io/gpencil/intern/gpencil_io_base.hh
+++ b/source/blender/io/gpencil/intern/gpencil_io_base.hh
@@ -58,8 +58,8 @@ class GpencilIO {
   struct Scene *scene_;
   struct RegionView3D *rv3d_;
 
-  int16_t winx_, winy_;
-  int16_t render_x_, render_y_;
+  int winx_, winy_;
+  int render_x_, render_y_;
   float camera_ratio_;
   rctf camera_rect_;
 
diff --git a/source/blender/io/wavefront_obj/importer/obj_import_file_reader.cc b/source/blender/io/wavefront_obj/importer/obj_import_file_reader.cc
index c2aa96713b1..a32fd90594d 100644
--- a/source/blender/io/wavefront_obj/importer/obj_import_file_reader.cc
+++ b/source/blender/io/wavefront_obj/importer/obj_import_file_reader.cc
@@ -22,32 +22,24 @@ using std::string;
 /**
  * Based on the properties of the given Geometry instance, create a new Geometry instance
  * or return the previous one.
- *
- * Also update index offsets which should always happen if a new Geometry instance is created.
  */
 static Geometry *create_geometry(Geometry *const prev_geometry,
                                  const eGeometryType new_type,
                                  StringRef name,
-                                 const GlobalVertices &global_vertices,
-                                 Vector<std::unique_ptr<Geometry>> &r_all_geometries,
-                                 VertexIndexOffset &r_offset)
+                                 Vector<std::unique_ptr<Geometry>> &r_all_geometries)
 {
   auto new_geometry = [&]() {
     r_all_geometries.append(std::make_unique<Geometry>());
     Geometry *g = r_all_geometries.last().get();
     g->geom_type_ = new_type;
     g->geometry_name_ = name.is_empty() ? "New object" : name;
-    g->vertex_start_ = global_vertices.vertices.size();
-    g->vertex_color_start_ = global_vertices.vertex_colors.size();
-    r_offset.set_index_offset(g->vertex_start_);
     return g;
   };
 
   if (prev_geometry && prev_geometry->geom_type_ == GEOM_MESH) {
     /* After the creation of a Geometry instance, at least one element has been found in the OBJ
-     * file that indicates that it is a mesh (basically anything but the vertex positions). */
-    if (!prev_geometry->face_elements_.is_empty() || prev_geometry->has_vertex_normals_ ||
-        !prev_geometry->edges_.is_empty()) {
+     * file that indicates that it is a mesh (faces or edges). */
+    if (!prev_geometry->face_elements_.is_empty() || !prev_geometry->edges_.is_empty()) {
       return new_geometry();
     }
     if (new_type == GEOM_MESH) {
@@ -70,15 +62,11 @@ static Geometry *create_geometry(Geometry *const prev_geometry,
   return new_geometry();
 }
 
-static void geom_add_vertex(Geometry *geom,
-                            const char *p,
-                            const char *end,
-                            GlobalVertices &r_global_vertices)
+static void geom_add_vertex(const char *p, const char *end, GlobalVertices &r_global_vertices)
 {
   float3 vert;
   p = parse_floats(p, end, 0.0f, vert, 3);
   r_global_vertices.vertices.append(vert);
-  geom->vertex_count_++;
   /* OBJ extension: `xyzrgb` vertex colors, when the vertex position
    * is followed by 3 more RGB color components. See
    * http://paulbourke.net/dataformats/obj/colour.html */
@@ -88,16 +76,22 @@ static void geom_add_vertex(Geometry *geom,
     if (srgb.x >= 0 && srgb.y >= 0 && srgb.z >= 0) {
       float3 linear;
       srgb_to_linearrgb_v3_v3(linear, srgb);
-      r_global_vertices.vertex_colors.append(linear);
-      geom->vertex_color_count_++;
+
+      auto &blocks = r_global_vertices.vertex_colors;
+      /* If we don't have vertex colors yet, or the previous vertex
+       * was without color, we need to start a new vertex colors block. */
+      if (blocks.is_empty() || (blocks.last().start_vertex_index + blocks.last().colors.size() !=
+                                r_global_vertices.vertices.size() - 1)) {
+        GlobalVertices::VertexColorsBlock block;
+        block.start_vertex_index = r_global_vertices.vertices.size() - 1;
+        blocks.append(block);
+      }
+      blocks.last().colors.append(linear);
     }
   }
 }
 
-static void geom_add_mrgb_colors(Geometry *geom,
-                                 const char *p,
-                                 const char *end,
-                                 GlobalVertices &r_global_vertices)
+static void geom_add_mrgb_colors(const char *p, const char *end, GlobalVertices &r_global_vertices)
 {
   /* MRGB color extension, in the form of
    * "#MRGB MMRRGGBBMMRRGGBB ..."
@@ -117,14 +111,26 @@ static void geom_add_mrgb_colors(Geometry *geom,
     srgb[3] = 0xFF;
     float linear[4];
     srgb_to_linearrgb_uchar4(linear, srgb);
-    r_global_vertices.vertex_colors.append({linear[0], linear[1], linear[2]});
-    geom->vertex_color_count_++;
+
+    auto &blocks = r_global_vertices.vertex_colors;
+    /* If we don't have vertex colors yet, or the previous vertex
+     * was without color, we need to start a new vertex colors block. */
+    if (blocks.is_empty() || (blocks.last().start_vertex_index + blocks.last().colors.size() !=
+                              r_global_vertices.vertices.size())) {
+      GlobalVertices::VertexColorsBlock block;
+      block.start_vertex_index = r_global_vertices.vertices.size();
+      blocks.append(block);
+    }
+    blocks.last().colors.append({linear[0], linear[1], linear[2]});
+    /* MRGB colors are specified after vertex positions; each new color
+     * "pushes" the vertex colors block further back into which vertices it is for. */
+    blocks.last().start_vertex_index--;
+
     p += mrgb_length;
   }
 }
 
-static void geom_add_vertex_normal(Geometry *geom,
-                                   const char *p,
+static void geom_add_vertex_normal(const char *p,
                                    const char *end,
                                    GlobalVertices &r_global_vertices)
 {
@@ -135,7 +141,6 @@ static void geom_add_vertex_normal(Geometry *geom,
    * normalized. */
   normalize_v3(normal);
   r_global_vertices.vertex_normals.append(normal);
-  geom->has_vertex_normals_ = true;
 }
 
 static void geom_add_uv_vertex(const char *p, const char *end, GlobalVertices &r_global_vertices)
@@ -148,24 +153,24 @@ static void geom_add_uv_vertex(const char *p, const char *end, GlobalVertices &r
 static void geom_add_edge(Geometry *geom,
                           const char *p,
                           const char *end,
-                          const VertexIndexOffset &offsets,
                           GlobalVertices &r_global_vertices)
 {
   int edge_v1, edge_v2;
   p = parse_int(p, end, -1, edge_v1);
   p = parse_int(p, end, -1, edge_v2);
   /* Always keep stored indices non-negative and zero-based. */
-  edge_v1 += edge_v1 < 0 ? r_global_vertices.vertices.size() : -offsets.get_index_offset() - 1;
-  edge_v2 += edge_v2 < 0 ? r_global_vertices.vertices.size() : -offsets.get_index_offset() - 1;
+  edge_v1 += edge_v1 < 0 ? r_global_vertices.vertices.size() : -1;
+  edge_v2 += edge_v2 < 0 ? r_global_vertices.vertices.size() : -1;
   BLI_assert(edge_v1 >= 0 && edge_v2 >= 0);
   geom->edges_.append({static_cast<uint>(edge_v1), static_cast<uint>(edge_v2)});
+  geom->track_vertex_index(edge_v1);
+  geom->track_vertex_index(edge_v2);
 }
 
 static void geom_add_polygon(Geometry *geom,
                              const char *p,
                              const char *end,
                              const GlobalVertices &global_vertices,
-                             const VertexIndexOffset &offsets,
                              const int material_index,
                              const int group_index,
                              const bool shaded_smooth)
@@ -204,8 +209,7 @@ static void geom_add_polygon(Geometry *geom,
       }
     }
     /* Always keep stored indices non-negative and zero-based. */
-    corner.vert_index += corner.vert_index < 0 ? global_vertices.vertices.size() :
-                                                 -offsets.get_index_offset() - 1;
+    corner.vert_index += corner.vert_index < 0 ? global_vertices.vertices.size() : -1;
     if (corner.vert_index < 0 || corner.vert_index >= global_vertices.vertices.size()) {
       fprintf(stderr,
               "Invalid vertex index %i (valid range [0, %zu)), ignoring face\n",
@@ -213,6 +217,9 @@ static void geom_add_polygon(Geometry *geom,
               (size_t)global_vertices.vertices.size());
       face_valid = false;
     }
+    else {
+      geom->track_vertex_index(corner.vert_index);
+    }
     if (got_uv) {
       corner.uv_vert_index += corner.uv_vert_index < 0 ? global_vertices.uv_vertices.size() : -1;
       if (corner.uv_vert_index < 0 || corner.uv_vert_index >= global_vertices.uv_vertices.size()) {
@@ -226,7 +233,7 @@ static void geom_add_polygon(Geometry *geom,
     /* Ignore corner normal index, if the geometry does not have any normals.
      * Some obj files out there do have face definitions that refer to normal indices,
      * without any normals being present (T98782). */
-    if (got_normal && geom->has_vertex_normals_) {
+    if (got_normal && !global_vertices.vertex_normals.is_empty()) {
       corner.vertex_normal_index += corner.vertex_normal_index < 0 ?
                                         global_vertices.vertex_normals.size() :
                                         -1;
@@ -260,9 +267,7 @@ static void geom_add_polygon(Geometry *geom,
 static Geometry *geom_set_curve_type(Geometry *geom,
                                      const char *p,
                                      const char *end,
-                                     const GlobalVertices &global_vertices,
                                      const StringRef group_name,
-                                     VertexIndexOffset &r_offsets,
                                      Vector<std::unique_ptr<Geometry>> &r_all_geometries)
 {
   p = drop_whitespace(p, end);
@@ -270,8 +275,7 @@ static Geometry *geom_set_curve_type(Geometry *geom,
     std::cerr << "Curve type not supported: '" << std::string(p, end) << "'" << std::endl;
     return geom;
   }
-  geom = create_geometry(
-      geom, GEOM_CURVE, group_name, global_vertices, r_all_geometries, r_offsets);
+  geom = create_geometry(geom, GEOM_CURVE, group_name, r_all_geometries);
   geom->nurbs_element_.group_ = group_name;
   return geom;
 }
@@ -402,9 +406,7 @@ void OBJParser::parse(Vector<std::unique_ptr<Geometry>> &r_all_geometries,
   BLI_strncpy(ob_name, BLI_path_basename(import_params_.filepath), FILE_MAXFILE);
   BLI_path_extension_replace(ob_name, FILE_MAXFILE, "");
 
-  VertexIndexOffset offsets;
-  Geometry *curr_geom = create_geometry(
-      nullptr, GEOM_MESH, ob_name, r_global_vertices, r_all_geometries, offsets);
+  Geometry *curr_geom = create_geometry(nullptr, GEOM_MESH, ob_name, r_all_geometries);
 
   /* State variables: once set, they remain the same for the remaining
    * elements in the object. */
@@ -427,6 +429,11 @@ void OBJParser::parse(Vector<std::unique_ptr<Geometry>> &r_all_geometries,
       break; /* No more data to read. */
     }
 
+    /* Take care of line continuations now (turn them into spaces);
+     * the rest of the parsing code does not need to worry about them anymore. */
+    fixup_line_continuations(buffer.data() + buffer_offset,
+                             buffer.data() + buffer_offset + bytes_read);
+
     /* Ensure buffer ends in a newline. */
     if (bytes_read < read_buffer_size_) {
       if (bytes_read == 0 || buffer[buffer_offset + bytes_read - 1] != '\n') {
@@ -445,9 +452,7 @@ void OBJParser::parse(Vector<std::unique_ptr<Geometry>> &r_all_geometries,
     while (last_nl > 0) {
       --last_nl;
       if (buffer[last_nl] == '\n') {
-        if (last_nl < 1 || buffer[last_nl - 1] != '\\') {
-          break;
-        }
+        break;
       }
     }
     if (buffer[last_nl] != '\n') {
@@ -474,10 +479,10 @@ void OBJParser::parse(Vector<std::unique_ptr<Geometry>> &r_all_geometries,
       /* Most common things that start with 'v': vertices, normals, UVs. */
       if (*p == 'v') {
         if (parse_keyword(p, end, "v")) {
-          geom_add_vertex(curr_geom, p, end, r_global_vertices);
+          geom_add_vertex(p, end, r_global_vertices);
         }
         else if (parse_keyword(p, end, "vn")) {
-          geom_add_vertex_normal(curr_geom, p, end, r_global_vertices);
+          geom_add_vertex_normal(p, end, r_global_vertices);
         }
         else if (parse_keyword(p, end, "vt")) {
           geom_add_uv_vertex(p, end, r_global_vertices);
@@ -489,26 +494,21 @@ void OBJParser::parse(Vector<std::unique_ptr<Geometry>> &r_all_geometries,
                          p,
                          end,
                          r_global_vertices,
-                         offsets,
                          state_material_index,
-                         state_group_index, /* TODO was wrongly material name! */
+                         state_group_index,
                          state_shaded_smooth);
       }
       /* Faces. */
       else if (parse_keyword(p, end, "l")) {
-        geom_add_edge(curr_geom, p, end, offsets, r_global_vertices);
+        geom_add_edge(curr_geom, p, end, r_global_vertices);
       }
       /* Objects. */
       else if (parse_keyword(p, end, "o")) {
         state_shaded_smooth = false;
         state_group_name = "";
         state_material_name = "";
-        curr_geom = create_geometry(curr_geom,
-                                    GEOM_MESH,
-                                    StringRef(p, end).trim(),
-                                    r_global_vertices,
-                                    r_all_geometries,
-                                    offsets);
+        curr_geom = create_geometry(
+            curr_geom, GEOM_MESH, StringRef(p, end).trim(), r_all_geometries);
       }
       /* Groups. */
       else if (parse_keyword(p, end, "g")) {
@@ -537,7 +537,7 @@ void OBJParser::parse(Vector<std::unique_ptr<Geometry>> &r_all_geometries,
         add_mtl_library(StringRef(p, end).trim());
       }
       else if (parse_keyword(p, end, "#MRGB")) {
-        geom_add_mrgb_colors(curr_geom, p, end, r_global_vertices);
+        geom_add_mrgb_colors(p, end, r_global_vertices);
       }
       /* Comments. */
       else if (*p == '#') {
@@ -545,8 +545,7 @@ void OBJParser::parse(Vector<std::unique_ptr<Geometry>> &r_all_geometries,
       }
       /* Curve related things. */
       else if (parse_keyword(p, end, "cstype")) {
-        curr_geom = geom_set_curve_type(
-            curr_geom, p, end, r_global_vertices, state_group_name, offsets, r_all_geometries);
+        curr_geom = geom_set_curve_type(curr_geom, p, end, state_group_name, r_all_geometries);
       }
       else if (parse_keyword(p, end, "deg")) {
         geom_set_curve_degree(curr_geom, p, end);
diff --git a/source/blender/io/wavefront_obj/importer/obj_import_mesh.cc b/source/blender/io/wavefront_obj/importer/obj_import_mesh.cc
index 8cef0700b3b..01f05466b3a 100644
--- a/source/blender/io/wavefront_obj/importer/obj_import_mesh.cc
+++ b/source/blender/io/wavefront_obj/importer/obj_import_mesh.cc
@@ -31,13 +31,17 @@ Object *MeshFromGeometry::create_mesh(Main *bmain,
                                       Map<std::string, Material *> &created_materials,
                                       const OBJImportParams &import_params)
 {
+  const int64_t tot_verts_object{mesh_geometry_.get_vertex_count()};
+  if (tot_verts_object <= 0) {
+    /* Empty mesh */
+    return nullptr;
+  }
   std::string ob_name{mesh_geometry_.geometry_name_};
   if (ob_name.empty()) {
     ob_name = "Untitled";
   }
   fixup_invalid_faces();
 
-  const int64_t tot_verts_object{mesh_geometry_.vertex_count_};
   /* Total explicitly imported edges, not the ones belonging the polygons to be created. */
   const int64_t tot_edges{mesh_geometry_.edges_.size()};
   const int64_t tot_face_elems{mesh_geometry_.face_elements_.size()};
@@ -153,9 +157,9 @@ void MeshFromGeometry::fixup_invalid_faces()
 
 void MeshFromGeometry::create_vertices(Mesh *mesh)
 {
-  const int tot_verts_object{mesh_geometry_.vertex_count_};
+  const int tot_verts_object{mesh_geometry_.get_vertex_count()};
   for (int i = 0; i < tot_verts_object; ++i) {
-    int vi = mesh_geometry_.vertex_start_ + i;
+    int vi = mesh_geometry_.vertex_index_min_ + i;
     if (vi < global_vertices_.vertices.size()) {
       copy_v3_v3(mesh->mvert[i].co, global_vertices_.vertices[vi]);
     }
@@ -170,7 +174,7 @@ void MeshFromGeometry::create_vertices(Mesh *mesh)
 void MeshFromGeometry::create_polys_loops(Mesh *mesh, bool use_vertex_groups)
 {
   mesh->dvert = nullptr;
-  const int64_t total_verts = mesh_geometry_.vertex_count_;
+  const int64_t total_verts = mesh_geometry_.get_vertex_count();
   if (use_vertex_groups && total_verts && mesh_geometry_.has_vertex_groups_) {
     mesh->dvert = static_cast<MDeformVert *>(
         CustomData_add_layer(&mesh->vdata, CD_MDEFORMVERT, CD_CALLOC, nullptr, total_verts));
@@ -204,7 +208,7 @@ void MeshFromGeometry::create_polys_loops(Mesh *mesh, bool use_vertex_groups)
       const PolyCorner &curr_corner = mesh_geometry_.face_corners_[curr_face.start_index_ + idx];
       MLoop &mloop = mesh->mloop[tot_loop_idx];
       tot_loop_idx++;
-      mloop.v = curr_corner.vert_index;
+      mloop.v = curr_corner.vert_index - mesh_geometry_.vertex_index_min_;
 
       /* Setup vertex group data, if needed. */
       if (!mesh->dvert) {
@@ -231,14 +235,14 @@ void MeshFromGeometry::create_vertex_groups(Object *obj)
 void MeshFromGeometry::create_edges(Mesh *mesh)
 {
   const int64_t tot_edges{mesh_geometry_.edges_.size()};
-  const int64_t total_verts{mesh_geometry_.vertex_count_};
+  const int64_t total_verts{mesh_geometry_.get_vertex_count()};
   UNUSED_VARS_NDEBUG(total_verts);
   for (int i = 0; i < tot_edges; ++i) {
     const MEdge &src_edge = mesh_geometry_.edges_[i];
     MEdge &dst_edge = mesh->medge[i];
-    BLI_assert(src_edge.v1 < total_verts && src_edge.v2 < total_verts);
-    dst_edge.v1 = src_edge.v1;
-    dst_edge.v2 = src_edge.v2;
+    dst_edge.v1 = src_edge.v1 - mesh_geometry_.vertex_index_min_;
+    dst_edge.v2 = src_edge.v2 - mesh_geometry_.vertex_index_min_;
+    BLI_assert(dst_edge.v1 < total_verts && dst_edge.v2 < total_verts);
     dst_edge.flag = ME_LOOSEEDGE;
   }
 
@@ -312,10 +316,8 @@ void MeshFromGeometry::create_materials(Main *bmain,
 
 void MeshFromGeometry::create_normals(Mesh *mesh)
 {
-  /* NOTE: Needs more clarity about what is expected in the viewport if the function works. */
-
   /* No normal data: nothing to do. */
-  if (global_vertices_.vertex_normals.is_empty() || !mesh_geometry_.has_vertex_normals_) {
+  if (global_vertices_.vertex_normals.is_empty()) {
     return;
   }
 
@@ -341,23 +343,26 @@ void MeshFromGeometry::create_normals(Mesh *mesh)
 
 void MeshFromGeometry::create_colors(Mesh *mesh)
 {
-  /* Nothing to do if we don't have vertex colors. */
-  if (mesh_geometry_.vertex_color_count_ < 1) {
-    return;
-  }
-  if (mesh_geometry_.vertex_color_count_ != mesh_geometry_.vertex_count_) {
-    std::cerr << "Mismatching number of vertices (" << mesh_geometry_.vertex_count_
-              << ") and colors (" << mesh_geometry_.vertex_color_count_ << ") on object '"
-              << mesh_geometry_.geometry_name_ << "', ignoring colors." << std::endl;
+  /* Nothing to do if we don't have vertex colors at all. */
+  if (global_vertices_.vertex_colors.is_empty()) {
     return;
   }
 
-  CustomDataLayer *color_layer = BKE_id_attribute_new(
-      &mesh->id, "Color", CD_PROP_COLOR, ATTR_DOMAIN_POINT, nullptr);
-  float4 *colors = (float4 *)color_layer->data;
-  for (int i = 0; i < mesh_geometry_.vertex_color_count_; ++i) {
-    float3 c = global_vertices_.vertex_colors[mesh_geometry_.vertex_color_start_ + i];
-    colors[i] = float4(c.x, c.y, c.z, 1.0f);
+  /* Find which vertex color block is for this mesh (if any). */
+  for (const auto &block : global_vertices_.vertex_colors) {
+    if (mesh_geometry_.vertex_index_min_ >= block.start_vertex_index &&
+        mesh_geometry_.vertex_index_max_ < block.start_vertex_index + block.colors.size()) {
+      /* This block is suitable, use colors from it. */
+      CustomDataLayer *color_layer = BKE_id_attribute_new(
+          &mesh->id, "Color", CD_PROP_COLOR, ATTR_DOMAIN_POINT, nullptr);
+      float4 *colors = (float4 *)color_layer->data;
+      int offset = mesh_geometry_.vertex_index_min_ - block.start_vertex_index;
+      for (int i = 0, n = mesh_geometry_.get_vertex_count(); i != n; ++i) {
+        float3 c = block.colors[offset + i];
+        colors[i] = float4(c.x, c.y, c.z, 1.0f);
+      }
+      return;
+    }
   }
 }
 
diff --git a/source/blender/io/wavefront_obj/importer/obj_import_objects.hh b/source/blender/io/wavefront_obj/importer/obj_import_objects.hh
index 3d6733d661e..9f0079d7c53 100644
--- a/source/blender/io/wavefront_obj/importer/obj_import_objects.hh
+++ b/source/blender/io/wavefront_obj/importer/obj_import_objects.hh
@@ -19,35 +19,24 @@
 namespace blender::io::obj {
 
 /**
- * List of all vertex and UV vertex coordinates in an OBJ file accessible to any
- * Geometry instance at any time.
+ * All vertex positions, normals, UVs, colors in the OBJ file.
  */
 struct GlobalVertices {
   Vector<float3> vertices;
   Vector<float2> uv_vertices;
   Vector<float3> vertex_normals;
-  Vector<float3> vertex_colors;
-};
-
-/**
- * Keeps track of the vertices that belong to other Geometries.
- * Needed only for MLoop.v and MEdge.v1 which needs vertex indices ranging from (0 to total
- * vertices in the mesh) as opposed to the other OBJ indices ranging from (0 to total vertices
- * in the global list).
- */
-struct VertexIndexOffset {
- private:
-  int offset_ = 0;
 
- public:
-  void set_index_offset(const int64_t total_vertices)
-  {
-    offset_ = total_vertices;
-  }
-  int64_t get_index_offset() const
-  {
-    return offset_;
-  }
+  /**
+   * Vertex colors might not be present in the file at all, or only
+   * provided for some meshes. Store them in chunks as they are
+   * spelled out in the file, e.g. if there are 10 vertices in sequence, all
+   * with `xyzrgb` colors, they will be one block.
+   */
+  struct VertexColorsBlock {
+    Vector<float3> colors;
+    int start_vertex_index;
+  };
+  Vector<VertexColorsBlock> vertex_colors;
 };
 
 /**
@@ -101,10 +90,8 @@ struct Geometry {
   Map<std::string, int> material_indices_;
   Vector<std::string> material_order_;
 
-  int vertex_start_ = 0;
-  int vertex_count_ = 0;
-  int vertex_color_start_ = 0;
-  int vertex_color_count_ = 0;
+  int vertex_index_min_ = INT_MAX;
+  int vertex_index_max_ = -1;
   /** Edges written in the file in addition to (or even without polygon) elements. */
   Vector<MEdge> edges_;
 
@@ -112,10 +99,21 @@ struct Geometry {
   Vector<PolyElem> face_elements_;
 
   bool has_invalid_polys_ = false;
-  bool has_vertex_normals_ = false;
   bool has_vertex_groups_ = false;
   NurbsElement nurbs_element_;
   int total_loops_ = 0;
+
+  int get_vertex_count() const
+  {
+    if (vertex_index_max_ < vertex_index_min_)
+      return 0;
+    return vertex_index_max_ - vertex_index_min_ + 1;
+  }
+  void track_vertex_index(int index)
+  {
+    vertex_index_min_ = std::min(vertex_index_min_, index);
+    vertex_index_max_ = std::max(vertex_index_max_, index);
+  }
 };
 
 }  // namespace blender::io::obj
diff --git a/source/blender/io/wavefront_obj/importer/obj_import_string_utils.cc b/source/blender/io/wavefront_obj/importer/obj_import_string_utils.cc
index bc9006e1051..9a457167fca 100644
--- a/source/blender/io/wavefront_obj/importer/obj_import_string_utils.cc
+++ b/source/blender/io/wavefront_obj/importer/obj_import_string_utils.cc
@@ -18,14 +18,12 @@ StringRef read_next_line(StringRef &buffer)
   const char *start = buffer.begin();
   const char *end = buffer.end();
   size_t len = 0;
-  char prev = 0;
   const char *ptr = start;
   while (ptr < end) {
     char c = *ptr++;
-    if (c == '\n' && prev != '\\') {
+    if (c == '\n') {
       break;
     }
-    prev = c;
     ++len;
   }
 
@@ -35,7 +33,27 @@ StringRef read_next_line(StringRef &buffer)
 
 static bool is_whitespace(char c)
 {
-  return c <= ' ' || c == '\\';
+  return c <= ' ';
+}
+
+void fixup_line_continuations(char *p, char *end)
+{
+  while (true) {
+    /* Find next backslash, if any. */
+    char *backslash = std::find(p, end, '\\');
+    if (backslash == end)
+      break;
+    /* Skip over possible whitespace right after it. */
+    p = backslash + 1;
+    while (p < end && is_whitespace(*p) && *p != '\n')
+      ++p;
+    /* If then we have a newline, turn both backslash
+     * and the newline into regular spaces. */
+    if (p < end && *p == '\n') {
+      *backslash = ' ';
+      *p = ' ';
+    }
+  }
 }
 
 const char *drop_whitespace(const char *p, const char *end)
diff --git a/source/blender/io/wavefront_obj/importer/obj_import_string_utils.hh b/source/blender/io/wavefront_obj/importer/obj_import_string_utils.hh
index f6dd1a6b675..e42f5080d25 100644
--- a/source/blender/io/wavefront_obj/importer/obj_import_string_utils.hh
+++ b/source/blender/io/wavefront_obj/importer/obj_import_string_utils.hh
@@ -6,9 +6,6 @@
 
 /*
  * Various text parsing utilities used by OBJ importer.
- * The utilities are not directly usable by other formats, since
- * they treat backslash (\) as a whitespace character (OBJ format
- * allows backslashes to function as a line-continuation character).
  *
  * Many of these functions take two pointers (p, end) indicating
  * which part of a string to operate on, and return a possibly
@@ -27,21 +24,22 @@ namespace blender::io::obj {
  * The returned line will not have '\n' characters at the end;
  * the `buffer` is modified to contain remaining text without
  * the input line.
- *
- * Note that backslash (\) character is treated as a line
- * continuation.
  */
 StringRef read_next_line(StringRef &buffer);
 
 /**
+ * Fix up OBJ line continuations by replacing backslash (\) and the
+ * following newline with spaces.
+ */
+void fixup_line_continuations(char *p, char *end);
+
+/**
  * Drop leading white-space from a string part.
- * Note that backslash character is considered white-space.
  */
 const char *drop_whitespace(const char *p, const char *end);
 
 /**
  * Drop leading non-white-space from a string part.
- * Note that backslash character is considered white-space.
  */
 const char *drop_non_whitespace(const char *p, const char *end);
 
diff --git a/source/blender/io/wavefront_obj/tests/obj_import_string_utils_tests.cc b/source/blender/io/wavefront_obj/tests/obj_import_string_utils_tests.cc
index e9747b437cc..dc1cfd2b449 100644
--- a/source/blender/io/wavefront_obj/tests/obj_import_string_utils_tests.cc
+++ b/source/blender/io/wavefront_obj/tests/obj_import_string_utils_tests.cc
@@ -10,17 +10,34 @@ namespace blender::io::obj {
 
 TEST(obj_import_string_utils, read_next_line)
 {
-  std::string str = "abc\n  \n\nline with \\\ncontinuation\nCRLF ending:\r\na";
+  std::string str = "abc\n  \n\nline with \t spaces\nCRLF ending:\r\na";
   StringRef s = str;
   EXPECT_STRREF_EQ("abc", read_next_line(s));
   EXPECT_STRREF_EQ("  ", read_next_line(s));
   EXPECT_STRREF_EQ("", read_next_line(s));
-  EXPECT_STRREF_EQ("line with \\\ncontinuation", read_next_line(s));
+  EXPECT_STRREF_EQ("line with \t spaces", read_next_line(s));
   EXPECT_STRREF_EQ("CRLF ending:\r", read_next_line(s));
   EXPECT_STRREF_EQ("a", read_next_line(s));
   EXPECT_TRUE(s.is_empty());
 }
 
+TEST(obj_import_string_utils, fixup_line_continuations)
+{
+  const char *str =
+      "backslash \\\n eol\n"
+      "backslash spaces \\   \n eol\n"
+      "without eol \\ is \\\\ \\ left intact\n"
+      "\\";
+  const char *exp =
+      "backslash    eol\n"
+      "backslash spaces       eol\n"
+      "without eol \\ is \\\\ \\ left intact\n"
+      "\\";
+  std::string buf(str);
+  fixup_line_continuations(buf.data(), buf.data() + buf.size());
+  EXPECT_STRREF_EQ(exp, buf);
+}
+
 static StringRef drop_whitespace(StringRef s)
 {
   return StringRef(drop_whitespace(s.begin(), s.end()), s.end());
@@ -54,7 +71,7 @@ TEST(obj_import_string_utils, drop_whitespace)
   /* No leading whitespace */
   EXPECT_STRREF_EQ("c", drop_whitespace("c"));
   /* Case with backslash, should be treated as whitespace */
-  EXPECT_STRREF_EQ("d", drop_whitespace(" \\ d"));
+  EXPECT_STRREF_EQ("d", drop_whitespace(" \t d"));
 }
 
 TEST(obj_import_string_utils, parse_int_valid)
diff --git a/source/blender/io/wavefront_obj/tests/obj_importer_tests.cc b/source/blender/io/wavefront_obj/tests/obj_importer_tests.cc
index eeb81f5e23e..02565556c37 100644
--- a/source/blender/io/wavefront_obj/tests/obj_importer_tests.cc
+++ b/source/blender/io/wavefront_obj/tests/obj_importer_tests.cc
@@ -158,6 +158,36 @@ TEST_F(obj_importer_test, import_cube)
   import_and_check("cube.obj", expect, std::size(expect), 1);
 }
 
+TEST_F(obj_importer_test, import_cube_o_after_verts)
+{
+  Expectation expect[] = {
+      {"OBCube", OB_MESH, 8, 12, 6, 24, float3(1, 1, -1), float3(-1, 1, 1)},
+      {
+          "OBActualCube",
+          OB_MESH,
+          8,
+          12,
+          6,
+          24,
+          float3(-1, -1, 1),
+          float3(1, -1, -1),
+          float3(0, 0, 1),
+      },
+      {
+          "OBSparseTri",
+          OB_MESH,
+          6,
+          3,
+          1,
+          3,
+          float3(1, -1, 1),
+          float3(-2, -2, 2),
+          float3(-0.2357f, 0.9428f, 0.2357f),
+      },
+  };
+  import_and_check("cube_o_after_verts.obj", expect, std::size(expect), 2);
+}
+
 TEST_F(obj_importer_test, import_suzanne_all_data)
 {
   Expectation expect[] = {
@@ -293,13 +323,13 @@ TEST_F(obj_importer_test, import_faces_invalid_or_with_holes)
        float3(1, 0, -1)},
       {"OBFaceQuadDupSomeVerts_BecomesOneQuadUsing4Verts",
        OB_MESH,
-       8,
+       4,
        4,
        1,
        4,
        float3(3, 0, -2),
-       float3(6, 0, -1)},
-      {"OBFaceTriDupVert_Becomes1Tri", OB_MESH, 8, 3, 1, 3, float3(-2, 0, 3), float3(1, 0, 4)},
+       float3(7, 0, -2)},
+      {"OBFaceTriDupVert_Becomes1Tri", OB_MESH, 3, 3, 1, 3, float3(-2, 0, 3), float3(2, 0, 7)},
       {"OBFaceAllVertsDup_BecomesOneOverlappingFaceUsingAllVerts",
        OB_MESH,
        8,
@@ -316,7 +346,7 @@ TEST_F(obj_importer_test, import_faces_invalid_or_with_holes)
        8,
        float3(8, 0, -2),
        float3(11, 0, -1)},
-      {"OBFaceJustTwoVerts_IsSkipped", OB_MESH, 8, 0, 0, 0, float3(8, 0, 3), float3(11, 0, 4)},
+      {"OBFaceJustTwoVerts_IsSkipped", OB_MESH, 2, 0, 0, 0, float3(8, 0, 3), float3(8, 0, 7)},
   };
   import_and_check("faces_invalid_or_with_holes.obj", expect, std::size(expect), 0);
 }
@@ -327,12 +357,12 @@ TEST_F(obj_importer_test, import_invalid_indices)
       {"OBCube", OB_MESH, 8, 12, 6, 24, float3(1, 1, -1), float3(-1, 1, 1)},
       {"OBQuad",
        OB_MESH,
-       4,
+       3,
        3,
        1,
        3,
        float3(-2, 0, -2),
-       float3(2, 0, -2),
+       float3(2, 0, 2),
        float3(0, 1, 0),
        float2(0.5f, 0.25f)},
   };
@@ -345,12 +375,12 @@ TEST_F(obj_importer_test, import_invalid_syntax)
       {"OBCube", OB_MESH, 8, 12, 6, 24, float3(1, 1, -1), float3(-1, 1, 1)},
       {"OBObjectWithAReallyLongNameToCheckHowImportHandlesNamesThatAreLon",
        OB_MESH,
-       10, /* NOTE: right now parses some invalid obj syntax as valid vertices. */
+       3,
        3,
        1,
        3,
        float3(1, 2, 3),
-       float3(10, 11, 12),
+       float3(7, 8, 9),
        float3(0, 1, 0),
        float2(0.5f, 0.25f)},
   };
@@ -585,29 +615,52 @@ TEST_F(obj_importer_test, import_cubes_vertex_colors)
 
 TEST_F(obj_importer_test, import_cubes_vertex_colors_mrgb)
 {
-  Expectation expect[] = {{"OBCube", OB_MESH, 8, 12, 6, 24, float3(1, 1, -1), float3(-1, 1, 1)},
-                          {"OBCubeXYZRGB",
-                           OB_MESH,
-                           8,
-                           12,
-                           6,
-                           24,
-                           float3(1, 1, -1),
-                           float3(-1, -1, 1),
-                           float3(0, 0, 0),
-                           float2(0, 0),
-                           float4(0.6038f, 0.3185f, 0.1329f, 1.0f)},
-                          {"OBCubeMRGB",
-                           OB_MESH,
-                           8,
-                           12,
-                           6,
-                           24,
-                           float3(4, 1, -1),
-                           float3(2, -1, 1),
-                           float3(0, 0, 0),
-                           float2(0, 0),
-                           float4(0.8714f, 0.6308f, 0.5271f, 1.0f)}};
+  Expectation expect[] = {
+      {"OBCube", OB_MESH, 8, 12, 6, 24, float3(1, 1, -1), float3(-1, 1, 1)},
+      {"OBCubeXYZRGB",
+       OB_MESH,
+       8,
+       12,
+       6,
+       24,
+       float3(1, 1, -1),
+       float3(-1, -1, 1),
+       float3(0, 0, 0),
+       float2(0, 0),
+       float4(0.6038f, 0.3185f, 0.1329f, 1.0f)},
+      {"OBCubeMRGB",
+       OB_MESH,
+       8,
+       12,
+       6,
+       24,
+       float3(4, 1, -1),
+       float3(2, -1, 1),
+       float3(0, 0, 0),
+       float2(0, 0),
+       float4(0.8714f, 0.6308f, 0.5271f, 1.0f)},
+      {
+          "OBTriNoColors",
+          OB_MESH,
+          3,
+          3,
+          1,
+          3,
+          float3(8, 1, -1),
+          float3(6, 0, -1),
+      },
+      {"OBTriMRGB",
+       OB_MESH,
+       3,
+       3,
+       1,
+       3,
+       float3(12, 1, -1),
+       float3(10, 0, -1),
+       float3(0, 0, 0),
+       float2(0, 0),
+       float4(1.0f, 0.0f, 0.0f, 1.0f)},
+  };
   import_and_check("cubes_vertex_colors_mrgb.obj", expect, std::size(expect), 0);
 }
 
diff --git a/source/blender/makesdna/DNA_ID.h b/source/blender/makesdna/DNA_ID.h
index 451c921c4ef..d3fc279381f 100644
--- a/source/blender/makesdna/DNA_ID.h
+++ b/source/blender/makesdna/DNA_ID.h
@@ -923,6 +923,10 @@ typedef enum IDRecalcFlag {
 #define FILTER_ID_PT (1ULL << 33)
 #define FILTER_ID_VO (1ULL << 34)
 #define FILTER_ID_SIM (1ULL << 35)
+#define FILTER_ID_KE (1ULL << 36)
+#define FILTER_ID_SCR (1ULL << 37)
+#define FILTER_ID_WM (1ULL << 38)
+#define FILTER_ID_LI (1ULL << 39)
 
 #define FILTER_ID_ALL \
   (FILTER_ID_AC | FILTER_ID_AR | FILTER_ID_BR | FILTER_ID_CA | FILTER_ID_CU_LEGACY | \
@@ -930,7 +934,8 @@ typedef enum IDRecalcFlag {
    FILTER_ID_MA | FILTER_ID_MB | FILTER_ID_MC | FILTER_ID_ME | FILTER_ID_MSK | FILTER_ID_NT | \
    FILTER_ID_OB | FILTER_ID_PA | FILTER_ID_PAL | FILTER_ID_PC | FILTER_ID_SCE | FILTER_ID_SPK | \
    FILTER_ID_SO | FILTER_ID_TE | FILTER_ID_TXT | FILTER_ID_VF | FILTER_ID_WO | FILTER_ID_CF | \
-   FILTER_ID_WS | FILTER_ID_LP | FILTER_ID_CV | FILTER_ID_PT | FILTER_ID_VO | FILTER_ID_SIM)
+   FILTER_ID_WS | FILTER_ID_LP | FILTER_ID_CV | FILTER_ID_PT | FILTER_ID_VO | FILTER_ID_SIM | \
+   FILTER_ID_KE | FILTER_ID_SCR | FILTER_ID_WM | FILTER_ID_LI)
 
 /**
  * This enum defines the index assigned to each type of IDs in the array returned by
diff --git a/source/blender/makesdna/DNA_camera_types.h b/source/blender/makesdna/DNA_camera_types.h
index e0aec298cd0..10a6c936be1 100644
--- a/source/blender/makesdna/DNA_camera_types.h
+++ b/source/blender/makesdna/DNA_camera_types.h
@@ -54,6 +54,7 @@ typedef struct CameraBGImage {
 typedef struct CameraDOFSettings {
   /** Focal distance for depth of field. */
   struct Object *focus_object;
+  char focus_subtarget[64];
   float focus_distance;
   float aperture_fstop;
   float aperture_rotation;
diff --git a/source/blender/makesdna/DNA_curves_types.h b/source/blender/makesdna/DNA_curves_types.h
index ed909c283c4..89deeec898b 100644
--- a/source/blender/makesdna/DNA_curves_types.h
+++ b/source/blender/makesdna/DNA_curves_types.h
@@ -67,23 +67,6 @@ typedef enum NormalMode {
  */
 typedef struct CurvesGeometry {
   /**
-   * A runtime pointer to the "position" attribute data.
-   * \note This data is owned by #point_data.
-   */
-  float (*position)[3];
-  /**
-   * A runtime pointer to the "radius" attribute data.
-   * \note This data is owned by #point_data.
-   */
-  float *radius;
-
-  /**
-   * The type of each curve. #CurveType.
-   * \note This data is owned by #curve_data.
-   */
-  int8_t *curve_type;
-
-  /**
    * The start index of each curve in the point data. The size of each curve can be calculated by
    * subtracting the offset from the next offset. That is valid even for the last curve because
    * this array is allocated with a length one larger than the number of curves. This is allowed
diff --git a/source/blender/makesdna/DNA_pointcloud_types.h b/source/blender/makesdna/DNA_pointcloud_types.h
index 1cb490190c3..ee829ebcf6e 100644
--- a/source/blender/makesdna/DNA_pointcloud_types.h
+++ b/source/blender/makesdna/DNA_pointcloud_types.h
@@ -18,13 +18,9 @@ typedef struct PointCloud {
   struct AnimData *adt; /* animation data (must be immediately after id) */
 
   int flag;
-  int _pad1[1];
 
   /* Geometry */
-  float (*co)[3];
-  float *radius;
   int totpoint;
-  int _pad2[1];
 
   /* Custom Data */
   struct CustomData pdata;
diff --git a/source/blender/makesdna/DNA_screen_types.h b/source/blender/makesdna/DNA_screen_types.h
index 8560f8a454e..e9178c0cbf5 100644
--- a/source/blender/makesdna/DNA_screen_types.h
+++ b/source/blender/makesdna/DNA_screen_types.h
@@ -305,12 +305,6 @@ typedef struct uiList { /* some list UI data need to be saved in file */
   int filter_flag;
   int filter_sort_flag;
 
-  /** Operator executed when activating an item. */
-  const char *custom_activate_opname;
-  /** Operator executed when dragging an item (item gets activated too, without running
-   * custom_activate_opname above). */
-  const char *custom_drag_opname;
-
   /* Custom sub-classes properties. */
   IDProperty *properties;
 
diff --git a/source/blender/makesdna/DNA_userdef_types.h b/source/blender/makesdna/DNA_userdef_types.h
index 2ceef4f623e..74fb1c3ac96 100644
--- a/source/blender/makesdna/DNA_userdef_types.h
+++ b/source/blender/makesdna/DNA_userdef_types.h
@@ -913,8 +913,7 @@ typedef struct UserDef {
   /** Pie menu distance from center before a direction is set. */
   short pie_menu_threshold;
 
-  short opensubdiv_compute_type;
-  short _pad6;
+  short _pad6[2];
 
   char factor_display_type;
 
diff --git a/source/blender/makesdna/DNA_windowmanager_types.h b/source/blender/makesdna/DNA_windowmanager_types.h
index a3d9b5fc7b6..116ea4821cb 100644
--- a/source/blender/makesdna/DNA_windowmanager_types.h
+++ b/source/blender/makesdna/DNA_windowmanager_types.h
@@ -407,13 +407,13 @@ enum {
   KMI_USER_MODIFIED = (1 << 2),
   KMI_UPDATE = (1 << 3),
   /**
-   * When set, ignore events with #wmEvent.is_repeat enabled.
+   * When set, ignore events with `wmEvent.flag & WM_EVENT_IS_REPEAT` enabled.
    *
    * \note this flag isn't cleared when editing/loading the key-map items,
    * so it may be set in cases which don't make sense (modifier-keys or mouse-motion for example).
    *
    * Knowing if an event may repeat is something set at the operating-systems event handling level
-   * so rely on #wmEvent.is_repeat being false non keyboard events instead of checking if this
+   * so rely on #WM_EVENT_IS_REPEAT being false non keyboard events instead of checking if this
    * flag makes sense.
    *
    * Only used when: `ISKEYBOARD(kmi->type) || (kmi->type == KM_TEXTINPUT)`
diff --git a/source/blender/makesrna/intern/CMakeLists.txt b/source/blender/makesrna/intern/CMakeLists.txt
index af8767a1220..778c6a6bfdd 100644
--- a/source/blender/makesrna/intern/CMakeLists.txt
+++ b/source/blender/makesrna/intern/CMakeLists.txt
@@ -84,7 +84,6 @@ set(DEFSRC
 
 if(WITH_EXPERIMENTAL_FEATURES)
   add_definitions(-DWITH_SIMULATION_DATABLOCK)
-  add_definitions(-DWITH_NEW_CURVES_TYPE)
   list(APPEND DEFSRC
     rna_curves.c
     rna_simulation.c
diff --git a/source/blender/makesrna/intern/makesrna.c b/source/blender/makesrna/intern/makesrna.c
index b5354514205..2b24bd0b39c 100644
--- a/source/blender/makesrna/intern/makesrna.c
+++ b/source/blender/makesrna/intern/makesrna.c
@@ -1117,8 +1117,10 @@ static char *rna_def_property_set_func(
           fprintf(
               f, "    if (data->%s != NULL) { MEM_freeN(data->%s); }\n", dp->dnaname, dp->dnaname);
           fprintf(f, "    const int length = strlen(value);\n");
-          fprintf(f, "    data->%s = MEM_mallocN(length + 1, __func__);\n", dp->dnaname);
-          fprintf(f, "    %s(data->%s, value, length + 1);\n", string_copy_func, dp->dnaname);
+          fprintf(f, "    if (length > 0) {\n");
+          fprintf(f, "        data->%s = MEM_mallocN(length + 1, __func__);\n", dp->dnaname);
+          fprintf(f, "        %s(data->%s, value, length + 1);\n", string_copy_func, dp->dnaname);
+          fprintf(f, "    } else { data->%s = NULL; }\n", dp->dnaname);
         }
         else {
           /* Handle char array properties. */
@@ -4433,9 +4435,7 @@ static RNAProcessItem PROCESS_ITEMS[] = {
     {"rna_dynamicpaint.c", NULL, RNA_def_dynamic_paint},
     {"rna_fcurve.c", "rna_fcurve_api.c", RNA_def_fcurve},
     {"rna_gpencil.c", NULL, RNA_def_gpencil},
-#ifdef WITH_NEW_CURVES_TYPE
     {"rna_curves.c", NULL, RNA_def_curves},
-#endif
     {"rna_image.c", "rna_image_api.c", RNA_def_image},
     {"rna_key.c", NULL, RNA_def_key},
     {"rna_light.c", NULL, RNA_def_light},
diff --git a/source/blender/makesrna/intern/rna_ID.c b/source/blender/makesrna/intern/rna_ID.c
index 8d2ee0ab534..4003df4d685 100644
--- a/source/blender/makesrna/intern/rna_ID.c
+++ b/source/blender/makesrna/intern/rna_ID.c
@@ -375,11 +375,9 @@ short RNA_type_to_ID_code(const StructRNA *type)
   if (base_type == &RNA_FreestyleLineStyle) {
     return ID_LS;
   }
-#  ifdef WITH_NEW_CURVES_TYPE
   if (base_type == &RNA_Curves) {
     return ID_CV;
   }
-#  endif
   if (base_type == &RNA_Lattice) {
     return ID_LT;
   }
@@ -483,11 +481,7 @@ StructRNA *ID_code_to_RNA_type(short idcode)
     case ID_GR:
       return &RNA_Collection;
     case ID_CV:
-#  ifdef WITH_NEW_CURVES_TYPE
       return &RNA_Curves;
-#  else
-      return &RNA_ID;
-#  endif
     case ID_IM:
       return &RNA_Image;
     case ID_KE:
diff --git a/source/blender/makesrna/intern/rna_camera.c b/source/blender/makesrna/intern/rna_camera.c
index 9628c6b2d65..99f8c263da6 100644
--- a/source/blender/makesrna/intern/rna_camera.c
+++ b/source/blender/makesrna/intern/rna_camera.c
@@ -519,6 +519,12 @@ static void rna_def_camera_dof_settings_data(BlenderRNA *brna)
       prop, "Focus Object", "Use this object to define the depth of field focal point");
   RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_Camera_dependency_update");
 
+  prop = RNA_def_property(srna, "focus_subtarget", PROP_STRING, PROP_NONE);
+  RNA_def_property_string_sdna(prop, NULL, "focus_subtarget");
+  RNA_def_property_ui_text(
+      prop, "Focus Bone", "Use this armature bone to define the depth of field focal point");
+  RNA_def_property_update(prop, NC_OBJECT | ND_DRAW, "rna_Camera_dependency_update");
+
   prop = RNA_def_property(srna, "focus_distance", PROP_FLOAT, PROP_DISTANCE);
   // RNA_def_property_pointer_sdna(prop, NULL, "focus_distance");
   RNA_def_property_range(prop, 0.0f, FLT_MAX);
diff --git a/source/blender/makesrna/intern/rna_curves.c b/source/blender/makesrna/intern/rna_curves.c
index bc3e5203ed0..cb8b36f41d2 100644
--- a/source/blender/makesrna/intern/rna_curves.c
+++ b/source/blender/makesrna/intern/rna_curves.c
@@ -64,7 +64,24 @@ static int rna_CurvePoint_index_get_const(const PointerRNA *ptr)
 {
   const Curves *curves = rna_curves(ptr);
   const float(*co)[3] = ptr->data;
-  return (int)(co - curves->geometry.position);
+  const float(*positions)[3] = (const float(*)[3])CustomData_get_layer_named(
+      &curves->geometry.point_data, CD_PROP_FLOAT3, "position");
+  return (int)(co - positions);
+}
+
+static int rna_Curves_position_data_length(PointerRNA *ptr)
+{
+  const Curves *curves = rna_curves(ptr);
+  return curves->geometry.point_num;
+}
+
+static void rna_Curves_position_data_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
+{
+  const Curves *curves = rna_curves(ptr);
+  const float(*positions)[3] = (const float(*)[3])CustomData_get_layer_named(
+      &curves->geometry.point_data, CD_PROP_FLOAT3, "position");
+  rna_iterator_array_begin(
+      iter, (void *)positions, sizeof(float[3]), curves->geometry.point_num, false, NULL);
 }
 
 static int rna_CurvePoint_index_get(PointerRNA *ptr)
@@ -85,21 +102,23 @@ static void rna_CurvePoint_location_set(PointerRNA *ptr, const float value[3])
 static float rna_CurvePoint_radius_get(PointerRNA *ptr)
 {
   const Curves *curves = rna_curves(ptr);
-  if (curves->geometry.radius == NULL) {
+  const float *radii = (const float *)CustomData_get_layer_named(
+      &curves->geometry.point_data, CD_PROP_FLOAT, "radius");
+  if (radii == NULL) {
     return 0.0f;
   }
-  const float(*co)[3] = ptr->data;
-  return curves->geometry.radius[co - curves->geometry.position];
+  return radii[rna_CurvePoint_index_get_const(ptr)];
 }
 
 static void rna_CurvePoint_radius_set(PointerRNA *ptr, float value)
 {
   const Curves *curves = rna_curves(ptr);
-  if (curves->geometry.radius == NULL) {
+  float *radii = (float *)CustomData_get_layer_named(
+      &curves->geometry.point_data, CD_PROP_FLOAT, "radius");
+  if (radii == NULL) {
     return;
   }
-  const float(*co)[3] = ptr->data;
-  curves->geometry.radius[co - curves->geometry.position] = value;
+  radii[rna_CurvePoint_index_get_const(ptr)] = value;
 }
 
 static char *rna_CurvePoint_path(const PointerRNA *ptr)
@@ -123,16 +142,6 @@ static char *rna_CurveSlice_path(const PointerRNA *ptr)
   return BLI_sprintfN("curves[%d]", rna_CurveSlice_index_get_const(ptr));
 }
 
-static void rna_CurveSlice_points_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
-{
-  Curves *curves = rna_curves(ptr);
-  const int *offset_ptr = (int *)ptr->data;
-  const int offset = *offset_ptr;
-  const int size = *(offset_ptr + 1) - offset;
-  float(*co)[3] = curves->geometry.position + *offset_ptr;
-  rna_iterator_array_begin(iter, co, sizeof(float[3]), size, 0, NULL);
-}
-
 static int rna_CurveSlice_first_point_index_get(PointerRNA *ptr)
 {
   const int *offset_ptr = (int *)ptr->data;
@@ -146,6 +155,17 @@ static int rna_CurveSlice_points_length_get(PointerRNA *ptr)
   return *(offset_ptr + 1) - offset;
 }
 
+static void rna_CurveSlice_points_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
+{
+  Curves *curves = rna_curves(ptr);
+  const int offset = rna_CurveSlice_first_point_index_get(ptr);
+  const int size = rna_CurveSlice_points_length_get(ptr);
+  float(*positions)[3] = (float(*)[3])CustomData_get_layer_named(
+      &curves->geometry.point_data, CD_PROP_FLOAT3, "position");
+  float(*co)[3] = positions + offset;
+  rna_iterator_array_begin(iter, co, sizeof(float[3]), size, 0, NULL);
+}
+
 static void rna_Curves_update_data(struct Main *UNUSED(bmain),
                                    struct Scene *UNUSED(scene),
                                    PointerRNA *ptr)
@@ -252,20 +272,32 @@ static void rna_def_curves(BlenderRNA *brna)
   RNA_def_property_struct_type(prop, "CurveSlice");
   RNA_def_property_ui_text(prop, "Curves", "All curves in the data-block");
 
-  /* TODO: better solution for (*co)[3] parsing issue. */
-
-  RNA_define_verify_sdna(0);
   prop = RNA_def_property(srna, "points", PROP_COLLECTION, PROP_NONE);
-  RNA_def_property_collection_sdna(prop, NULL, "geometry.position", "geometry.point_num");
   RNA_def_property_struct_type(prop, "CurvePoint");
+  RNA_def_property_collection_funcs(prop,
+                                    "rna_Curves_position_data_begin",
+                                    "rna_iterator_array_next",
+                                    "rna_iterator_array_end",
+                                    "rna_iterator_array_get",
+                                    "rna_Curves_position_data_length",
+                                    NULL,
+                                    NULL,
+                                    NULL);
   RNA_def_property_ui_text(prop, "Points", "Control points of all curves");
-  RNA_define_verify_sdna(1);
 
   /* Direct access to built-in attributes. */
 
   RNA_define_verify_sdna(0);
   prop = RNA_def_property(srna, "position_data", PROP_COLLECTION, PROP_NONE);
-  RNA_def_property_collection_sdna(prop, NULL, "geometry.position", "geometry.point_num");
+  RNA_def_property_collection_funcs(prop,
+                                    "rna_Curves_position_data_begin",
+                                    "rna_iterator_array_next",
+                                    "rna_iterator_array_end",
+                                    "rna_iterator_array_get",
+                                    "rna_Curves_position_data_length",
+                                    NULL,
+                                    NULL,
+                                    NULL);
   RNA_def_property_struct_type(prop, "FloatVectorAttributeValue");
   RNA_def_property_update(prop, 0, "rna_Curves_update_data");
   RNA_define_verify_sdna(1);
diff --git a/source/blender/makesrna/intern/rna_fcurve.c b/source/blender/makesrna/intern/rna_fcurve.c
index ac8aebd2fdd..727d329781d 100644
--- a/source/blender/makesrna/intern/rna_fcurve.c
+++ b/source/blender/makesrna/intern/rna_fcurve.c
@@ -612,7 +612,7 @@ static void rna_tag_animation_update(Main *bmain, ID *id)
 static void rna_FCurve_update_data_ex(ID *id, FCurve *fcu, Main *bmain)
 {
   sort_time_fcurve(fcu);
-  calchandles_fcurve(fcu);
+  BKE_fcurve_handles_recalc(fcu);
 
   rna_tag_animation_update(bmain, id);
 }
@@ -752,7 +752,7 @@ static void rna_FModifier_update(Main *bmain, Scene *UNUSED(scene), PointerRNA *
   FModifier *fcm = (FModifier *)ptr->data;
 
   if (fcm->curve && fcm->type == FMODIFIER_TYPE_CYCLES) {
-    calchandles_fcurve(fcm->curve);
+    BKE_fcurve_handles_recalc(fcm->curve);
   }
 
   rna_tag_animation_update(bmain, id);
@@ -1021,9 +1021,20 @@ static void rna_FKeyframe_points_remove(
     return;
   }
 
-  delete_fcurve_key(fcu, index, !do_fast);
+  BKE_fcurve_delete_key(fcu, index);
   RNA_POINTER_INVALIDATE(bezt_ptr);
 
+  if (!do_fast) {
+    BKE_fcurve_handles_recalc(fcu);
+  }
+
+  rna_tag_animation_update(bmain, id);
+}
+
+static void rna_FKeyframe_points_clear(ID *id, FCurve *fcu, Main *bmain)
+{
+  BKE_fcurve_delete_keys_all(fcu);
+
   rna_tag_animation_update(bmain, id);
 }
 
@@ -2306,6 +2317,10 @@ static void rna_def_fcurve_keyframe_points(BlenderRNA *brna, PropertyRNA *cprop)
   /* optional */
   RNA_def_boolean(
       func, "fast", 0, "Fast", "Fast keyframe removal to avoid recalculating the curve each time");
+
+  func = RNA_def_function(srna, "clear", "rna_FKeyframe_points_clear");
+  RNA_def_function_ui_description(func, "Remove all keyframes from an F-Curve");
+  RNA_def_function_flag(func, FUNC_USE_SELF_ID | FUNC_USE_MAIN);
 }
 
 static void rna_def_fcurve(BlenderRNA *brna)
diff --git a/source/blender/makesrna/intern/rna_gpencil_modifier.c b/source/blender/makesrna/intern/rna_gpencil_modifier.c
index dccf7d7a7a9..0647bc62081 100644
--- a/source/blender/makesrna/intern/rna_gpencil_modifier.c
+++ b/source/blender/makesrna/intern/rna_gpencil_modifier.c
@@ -774,7 +774,7 @@ static bool dash_segment_name_exists_fn(void *arg, const char *name)
 {
   const DashGpencilModifierData *dmd = (const DashGpencilModifierData *)arg;
   for (int i = 0; i < dmd->segments_len; i++) {
-    if (STREQ(dmd->segments[i].name, name)) {
+    if (STREQ(dmd->segments[i].name, name) && dmd->segments[i].name != name) {
       return true;
     }
   }
@@ -3452,7 +3452,7 @@ static void rna_def_modifier_gpencillineart(BlenderRNA *brna)
   prop = RNA_def_property(srna, "use_shadow", PROP_BOOLEAN, PROP_NONE);
   RNA_def_property_boolean_sdna(prop, NULL, "edge_types", LRT_EDGE_FLAG_PROJECTED_SHADOW);
   RNA_def_property_ui_text(
-      prop, "Use Shadow", "Project contour lines using a light shource object");
+      prop, "Use Shadow", "Project contour lines using a light source object");
   RNA_def_property_update(prop, 0, "rna_GpencilModifier_update");
 
   prop = RNA_def_property(srna, "shadow_region_filtering", PROP_ENUM, PROP_NONE);
diff --git a/source/blender/makesrna/intern/rna_internal.h b/source/blender/makesrna/intern/rna_internal.h
index 6ca8e668fa0..833060e40f8 100644
--- a/source/blender/makesrna/intern/rna_internal.h
+++ b/source/blender/makesrna/intern/rna_internal.h
@@ -504,9 +504,7 @@ void RNA_def_main_cachefiles(BlenderRNA *brna, PropertyRNA *cprop);
 void RNA_def_main_paintcurves(BlenderRNA *brna, PropertyRNA *cprop);
 void RNA_def_main_workspaces(BlenderRNA *brna, PropertyRNA *cprop);
 void RNA_def_main_lightprobes(BlenderRNA *brna, PropertyRNA *cprop);
-#ifdef WITH_NEW_CURVES_TYPE
 void RNA_def_main_hair_curves(BlenderRNA *brna, PropertyRNA *cprop);
-#endif
 void RNA_def_main_pointclouds(BlenderRNA *brna, PropertyRNA *cprop);
 void RNA_def_main_volumes(BlenderRNA *brna, PropertyRNA *cprop);
 #ifdef WITH_SIMULATION_DATABLOCK
diff --git a/source/blender/makesrna/intern/rna_main.c b/source/blender/makesrna/intern/rna_main.c
index 7200bcaa2a6..4aedb1fc611 100644
--- a/source/blender/makesrna/intern/rna_main.c
+++ b/source/blender/makesrna/intern/rna_main.c
@@ -96,9 +96,7 @@ RNA_MAIN_LISTBASE_FUNCS_DEF(collections)
 RNA_MAIN_LISTBASE_FUNCS_DEF(curves)
 RNA_MAIN_LISTBASE_FUNCS_DEF(fonts)
 RNA_MAIN_LISTBASE_FUNCS_DEF(gpencils)
-#  ifdef WITH_NEW_CURVES_TYPE
 RNA_MAIN_LISTBASE_FUNCS_DEF(hair_curves)
-#  endif
 RNA_MAIN_LISTBASE_FUNCS_DEF(images)
 RNA_MAIN_LISTBASE_FUNCS_DEF(lattices)
 RNA_MAIN_LISTBASE_FUNCS_DEF(libraries)
@@ -375,7 +373,6 @@ void RNA_def_main(BlenderRNA *brna)
        "Light Probes",
        "Light Probe data-blocks",
        RNA_def_main_lightprobes},
-#  ifdef WITH_NEW_CURVES_TYPE
       /**
        * \note The name `hair_curves` is chosen to be different than `curves`,
        * but they are generic curve data-blocks, not just for hair.
@@ -386,7 +383,6 @@ void RNA_def_main(BlenderRNA *brna)
        "Hair Curves",
        "Hair curve data-blocks",
        RNA_def_main_hair_curves},
-#  endif
       {"pointclouds",
        "PointCloud",
        "rna_Main_pointclouds_begin",
diff --git a/source/blender/makesrna/intern/rna_main_api.c b/source/blender/makesrna/intern/rna_main_api.c
index 6c621604e40..1f21fa3fab9 100644
--- a/source/blender/makesrna/intern/rna_main_api.c
+++ b/source/blender/makesrna/intern/rna_main_api.c
@@ -749,7 +749,6 @@ static bGPdata *rna_Main_gpencils_new(Main *bmain, const char *name)
   return gpd;
 }
 
-#  ifdef WITH_NEW_CURVES_TYPE
 static Curves *rna_Main_hair_curves_new(Main *bmain, const char *name)
 {
   char safe_name[MAX_ID_NAME - 2];
@@ -762,7 +761,6 @@ static Curves *rna_Main_hair_curves_new(Main *bmain, const char *name)
 
   return curves;
 }
-#  endif
 
 static PointCloud *rna_Main_pointclouds_new(Main *bmain, const char *name)
 {
@@ -847,9 +845,7 @@ RNA_MAIN_ID_TAG_FUNCS_DEF(cachefiles, cachefiles, ID_CF)
 RNA_MAIN_ID_TAG_FUNCS_DEF(paintcurves, paintcurves, ID_PC)
 RNA_MAIN_ID_TAG_FUNCS_DEF(workspaces, workspaces, ID_WS)
 RNA_MAIN_ID_TAG_FUNCS_DEF(lightprobes, lightprobes, ID_LP)
-#  ifdef WITH_NEW_CURVES_TYPE
 RNA_MAIN_ID_TAG_FUNCS_DEF(hair_curves, hair_curves, ID_CV)
-#  endif
 RNA_MAIN_ID_TAG_FUNCS_DEF(pointclouds, pointclouds, ID_PT)
 RNA_MAIN_ID_TAG_FUNCS_DEF(volumes, volumes, ID_VO)
 #  ifdef WITH_SIMULATION_DATABLOCK
@@ -2255,7 +2251,6 @@ void RNA_def_main_lightprobes(BlenderRNA *brna, PropertyRNA *cprop)
   RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
 }
 
-#  ifdef WITH_NEW_CURVES_TYPE
 void RNA_def_main_hair_curves(BlenderRNA *brna, PropertyRNA *cprop)
 {
   StructRNA *srna;
@@ -2299,7 +2294,6 @@ void RNA_def_main_hair_curves(BlenderRNA *brna, PropertyRNA *cprop)
   parm = RNA_def_boolean(func, "value", 0, "Value", "");
   RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
 }
-#  endif
 
 void RNA_def_main_pointclouds(BlenderRNA *brna, PropertyRNA *cprop)
 {
diff --git a/source/blender/makesrna/intern/rna_nodetree.c b/source/blender/makesrna/intern/rna_nodetree.c
index 386ef3f74a3..80217decb13 100644
--- a/source/blender/makesrna/intern/rna_nodetree.c
+++ b/source/blender/makesrna/intern/rna_nodetree.c
@@ -5282,7 +5282,7 @@ static void def_sh_tex_sky(StructRNA *srna)
 
   prop = RNA_def_property(srna, "sun_elevation", PROP_FLOAT, PROP_ANGLE);
   RNA_def_property_ui_text(prop, "Sun Elevation", "Sun angle from horizon");
-  RNA_def_property_range(prop, -M_PI_2, M_PI_2);
+  RNA_def_property_ui_range(prop, -M_PI, M_PI, 1, 2);
   RNA_def_property_float_default(prop, M_PI_2);
   RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_Node_update");
 
diff --git a/source/blender/makesrna/intern/rna_object.c b/source/blender/makesrna/intern/rna_object.c
index a68ef361f04..103c77fa808 100644
--- a/source/blender/makesrna/intern/rna_object.c
+++ b/source/blender/makesrna/intern/rna_object.c
@@ -607,11 +607,7 @@ static StructRNA *rna_Object_data_typef(PointerRNA *ptr)
     case OB_GPENCIL:
       return &RNA_GreasePencil;
     case OB_CURVES:
-#  ifdef WITH_NEW_CURVES_TYPE
       return &RNA_Curves;
-#  else
-      return &RNA_ID;
-#  endif
     case OB_POINTCLOUD:
       return &RNA_PointCloud;
     case OB_VOLUME:
diff --git a/source/blender/makesrna/intern/rna_pointcloud.c b/source/blender/makesrna/intern/rna_pointcloud.c
index 4c5dcd5a587..df09bff1aea 100644
--- a/source/blender/makesrna/intern/rna_pointcloud.c
+++ b/source/blender/makesrna/intern/rna_pointcloud.c
@@ -20,6 +20,7 @@
 
 #  include "BLI_math_vector.h"
 
+#  include "BKE_customdata.h"
 #  include "BKE_pointcloud.h"
 
 #  include "DEG_depsgraph.h"
@@ -36,7 +37,9 @@ static int rna_Point_index_get_const(const PointerRNA *ptr)
 {
   const PointCloud *pointcloud = rna_pointcloud(ptr);
   const float(*co)[3] = ptr->data;
-  return (int)(co - pointcloud->co);
+  const float(*positions)[3] = (const float(*)[3])CustomData_get_layer_named(
+      &pointcloud->pdata, CD_PROP_FLOAT3, "position");
+  return (int)(co - positions);
 }
 
 static int rna_Point_index_get(PointerRNA *ptr)
@@ -44,6 +47,21 @@ static int rna_Point_index_get(PointerRNA *ptr)
   return rna_Point_index_get_const(ptr);
 }
 
+static int rna_PointCloud_points_length(PointerRNA *ptr)
+{
+  const PointCloud *pointcloud = rna_pointcloud(ptr);
+  return pointcloud->totpoint;
+}
+
+static void rna_PointCloud_points_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
+{
+  const PointCloud *pointcloud = rna_pointcloud(ptr);
+  const float(*positions)[3] = (const float(*)[3])CustomData_get_layer_named(
+      &pointcloud->pdata, CD_PROP_FLOAT3, "position");
+  rna_iterator_array_begin(
+      iter, (void *)positions, sizeof(float[3]), pointcloud->totpoint, false, NULL);
+}
+
 static void rna_Point_location_get(PointerRNA *ptr, float value[3])
 {
   copy_v3_v3(value, (const float *)ptr->data);
@@ -57,21 +75,22 @@ static void rna_Point_location_set(PointerRNA *ptr, const float value[3])
 static float rna_Point_radius_get(PointerRNA *ptr)
 {
   const PointCloud *pointcloud = rna_pointcloud(ptr);
-  if (pointcloud->radius == NULL) {
+  const float *radii = (const float *)CustomData_get_layer_named(
+      &pointcloud->pdata, CD_PROP_FLOAT, "radius");
+  if (radii == NULL) {
     return 0.0f;
   }
-  const float(*co)[3] = ptr->data;
-  return pointcloud->radius[co - pointcloud->co];
+  return radii[rna_Point_index_get_const(ptr)];
 }
 
 static void rna_Point_radius_set(PointerRNA *ptr, float value)
 {
-  const PointCloud *pointcloud = rna_pointcloud(ptr);
-  if (pointcloud->radius == NULL) {
+  PointCloud *pointcloud = rna_pointcloud(ptr);
+  float *radii = (float *)CustomData_get_layer_named(&pointcloud->pdata, CD_PROP_FLOAT, "radius");
+  if (radii == NULL) {
     return;
   }
-  const float(*co)[3] = ptr->data;
-  pointcloud->radius[co - pointcloud->co] = value;
+  radii[rna_Point_index_get_const(ptr)] = value;
 }
 
 static char *rna_Point_path(const PointerRNA *ptr)
@@ -130,13 +149,18 @@ static void rna_def_pointcloud(BlenderRNA *brna)
   RNA_def_struct_ui_icon(srna, ICON_POINTCLOUD_DATA);
 
   /* geometry */
-  /* TODO: better solution for (*co)[3] parsing issue. */
-  RNA_define_verify_sdna(0);
   prop = RNA_def_property(srna, "points", PROP_COLLECTION, PROP_NONE);
-  RNA_def_property_collection_sdna(prop, NULL, "co", "totpoint");
   RNA_def_property_struct_type(prop, "Point");
+  RNA_def_property_collection_funcs(prop,
+                                    "rna_PointCloud_points_begin",
+                                    "rna_iterator_array_next",
+                                    "rna_iterator_array_end",
+                                    "rna_iterator_array_get",
+                                    "rna_PointCloud_points_length",
+                                    NULL,
+                                    NULL,
+                                    NULL);
   RNA_def_property_ui_text(prop, "Points", "");
-  RNA_define_verify_sdna(1);
 
   /* materials */
   prop = RNA_def_property(srna, "materials", PROP_COLLECTION, PROP_NONE);
diff --git a/source/blender/makesrna/intern/rna_sculpt_paint.c b/source/blender/makesrna/intern/rna_sculpt_paint.c
index 3de9e632ff6..2e1fa8db7fe 100644
--- a/source/blender/makesrna/intern/rna_sculpt_paint.c
+++ b/source/blender/makesrna/intern/rna_sculpt_paint.c
@@ -1303,6 +1303,7 @@ static void rna_def_particle_edit(BlenderRNA *brna)
   RNA_def_property_boolean_sdna(prop, NULL, "flag", PE_INTERPOLATE_ADDED);
   RNA_def_property_ui_text(
       prop, "Interpolate", "Interpolate new particles from the existing ones");
+  RNA_def_property_update(prop, NC_SCENE | ND_TOOLSETTINGS, NULL);
 
   prop = RNA_def_property(srna, "default_key_count", PROP_INT, PROP_NONE);
   RNA_def_property_int_sdna(prop, NULL, "totaddkey");
diff --git a/source/blender/makesrna/intern/rna_space.c b/source/blender/makesrna/intern/rna_space.c
index 969d1f2075e..e67d840eeac 100644
--- a/source/blender/makesrna/intern/rna_space.c
+++ b/source/blender/makesrna/intern/rna_space.c
@@ -6585,7 +6585,7 @@ static void rna_def_fileselect_params(BlenderRNA *brna)
   static const EnumPropertyItem display_size_items[] = {
       {64, "TINY", 0, "Tiny", ""},
       {96, "SMALL", 0, "Small", ""},
-      {128, "NORMAL", 0, "Regular", ""},
+      {128, "NORMAL", 0, "Medium", ""},
       {192, "LARGE", 0, "Large", ""},
       {0, NULL, 0, NULL, NULL},
   };
diff --git a/source/blender/makesrna/intern/rna_userdef.c b/source/blender/makesrna/intern/rna_userdef.c
index 25eacdaab30..cfc72791123 100644
--- a/source/blender/makesrna/intern/rna_userdef.c
+++ b/source/blender/makesrna/intern/rna_userdef.c
@@ -38,23 +38,6 @@
 
 #include "BLT_lang.h"
 
-#ifdef WITH_OPENSUBDIV
-static const EnumPropertyItem opensubdiv_compute_type_items[] = {
-    {USER_OPENSUBDIV_COMPUTE_NONE, "NONE", 0, "None", ""},
-    {USER_OPENSUBDIV_COMPUTE_CPU, "CPU", 0, "CPU", ""},
-    {USER_OPENSUBDIV_COMPUTE_OPENMP, "OPENMP", 0, "OpenMP", ""},
-    {USER_OPENSUBDIV_COMPUTE_OPENCL, "OPENCL", 0, "OpenCL", ""},
-    {USER_OPENSUBDIV_COMPUTE_CUDA, "CUDA", 0, "CUDA", ""},
-    {USER_OPENSUBDIV_COMPUTE_GLSL_TRANSFORM_FEEDBACK,
-     "GLSL_TRANSFORM_FEEDBACK",
-     0,
-     "GLSL Transform Feedback",
-     ""},
-    {USER_OPENSUBDIV_COMPUTE_GLSL_COMPUTE, "GLSL_COMPUTE", 0, "GLSL Compute", ""},
-    {0, NULL, 0, NULL, NULL},
-};
-#endif
-
 const EnumPropertyItem rna_enum_preference_section_items[] = {
     {USER_SECTION_INTERFACE, "INTERFACE", 0, "Interface", ""},
     {USER_SECTION_THEME, "THEMES", 0, "Themes", ""},
@@ -189,10 +172,6 @@ static const EnumPropertyItem rna_enum_userdef_viewport_aa_items[] = {
 
 #  include "UI_interface.h"
 
-#  ifdef WITH_OPENSUBDIV
-#    include "opensubdiv_capi.h"
-#  endif
-
 #  ifdef WITH_SDL_DYNLOAD
 #    include "sdlew.h"
 #  endif
@@ -728,55 +707,6 @@ static PointerRNA rna_Theme_space_list_generic_get(PointerRNA *ptr)
   return rna_pointer_inherit_refine(ptr, &RNA_ThemeSpaceListGeneric, ptr->data);
 }
 
-#  ifdef WITH_OPENSUBDIV
-static const EnumPropertyItem *rna_userdef_opensubdiv_compute_type_itemf(bContext *UNUSED(C),
-                                                                         PointerRNA *UNUSED(ptr),
-                                                                         PropertyRNA *UNUSED(prop),
-                                                                         bool *r_free)
-{
-  EnumPropertyItem *item = NULL;
-  int totitem = 0;
-  int evaluators = openSubdiv_getAvailableEvaluators();
-
-  RNA_enum_items_add_value(
-      &item, &totitem, opensubdiv_compute_type_items, USER_OPENSUBDIV_COMPUTE_NONE);
-
-#    define APPEND_COMPUTE(compute) \
-      if (evaluators & OPENSUBDIV_EVALUATOR_##compute) { \
-        RNA_enum_items_add_value( \
-            &item, &totitem, opensubdiv_compute_type_items, USER_OPENSUBDIV_COMPUTE_##compute); \
-      } \
-      ((void)0)
-
-  APPEND_COMPUTE(CPU);
-  APPEND_COMPUTE(OPENMP);
-  APPEND_COMPUTE(OPENCL);
-  APPEND_COMPUTE(CUDA);
-  APPEND_COMPUTE(GLSL_TRANSFORM_FEEDBACK);
-  APPEND_COMPUTE(GLSL_COMPUTE);
-
-#    undef APPEND_COMPUTE
-
-  RNA_enum_item_end(&item, &totitem);
-  *r_free = true;
-
-  return item;
-}
-
-static void rna_userdef_opensubdiv_update(Main *bmain,
-                                          Scene *UNUSED(scene),
-                                          PointerRNA *UNUSED(ptr))
-{
-  Object *object;
-
-  for (object = bmain->objects.first; object; object = object->id.next) {
-    DEG_id_tag_update(&object->id, ID_RECALC_TRANSFORM);
-  }
-  USERDEF_TAG_DIRTY;
-}
-
-#  endif
-
 static const EnumPropertyItem *rna_userdef_audio_device_itemf(bContext *UNUSED(C),
                                                               PointerRNA *UNUSED(ptr),
                                                               PropertyRNA *UNUSED(prop),
@@ -5699,17 +5629,6 @@ static void rna_def_userdef_system(BlenderRNA *brna)
   RNA_def_property_ui_text(prop, "Audio Channels", "Audio channel count");
   RNA_def_property_update(prop, 0, "rna_UserDef_audio_update");
 
-#  ifdef WITH_OPENSUBDIV
-  prop = RNA_def_property(srna, "opensubdiv_compute_type", PROP_ENUM, PROP_NONE);
-  RNA_def_property_flag(prop, PROP_ENUM_NO_CONTEXT);
-  RNA_def_property_enum_sdna(prop, NULL, "opensubdiv_compute_type");
-  RNA_def_property_enum_items(prop, opensubdiv_compute_type_items);
-  RNA_def_property_enum_funcs(prop, NULL, NULL, "rna_userdef_opensubdiv_compute_type_itemf");
-  RNA_def_property_ui_text(
-      prop, "OpenSubdiv Compute Type", "Type of computer back-end used with OpenSubdiv");
-  RNA_def_property_update(prop, NC_SPACE | ND_SPACE_PROPERTIES, "rna_userdef_opensubdiv_update");
-#  endif
-
 #  ifdef WITH_CYCLES
   prop = RNA_def_property(srna, "legacy_compute_device_type", PROP_INT, PROP_NONE);
   RNA_def_property_int_sdna(prop, NULL, "compute_device_type");
diff --git a/source/blender/makesrna/intern/rna_wm.c b/source/blender/makesrna/intern/rna_wm.c
index 7893a2f4bc0..2009f51e1f2 100644
--- a/source/blender/makesrna/intern/rna_wm.c
+++ b/source/blender/makesrna/intern/rna_wm.c
@@ -607,14 +607,14 @@ static PointerRNA rna_OperatorMacro_properties_get(PointerRNA *ptr)
 static void rna_Event_ascii_get(PointerRNA *ptr, char *value)
 {
   const wmEvent *event = ptr->data;
-  value[0] = event->ascii;
+  value[0] = WM_event_utf8_to_ascii(event);
   value[1] = '\0';
 }
 
 static int rna_Event_ascii_length(PointerRNA *ptr)
 {
   const wmEvent *event = ptr->data;
-  return (event->ascii) ? 1 : 0;
+  return WM_event_utf8_to_ascii(event) ? 1 : 0;
 }
 
 static void rna_Event_unicode_get(PointerRNA *ptr, char *value)
diff --git a/source/blender/makesrna/intern/rna_wm_api.c b/source/blender/makesrna/intern/rna_wm_api.c
index b9f36d35ee8..eb5e2549b1d 100644
--- a/source/blender/makesrna/intern/rna_wm_api.c
+++ b/source/blender/makesrna/intern/rna_wm_api.c
@@ -639,16 +639,12 @@ static wmEvent *rna_Window_event_add_simulate(wmWindow *win,
   }
   /* TODO: validate NDOF. */
 
-  char ascii = 0;
   if (unicode != NULL) {
     int len = BLI_str_utf8_size(unicode);
     if (len == -1 || unicode[len] != '\0') {
       BKE_report(reports, RPT_ERROR, "Only a single character supported");
       return NULL;
     }
-    if (len == 1 && isascii(unicode[0])) {
-      ascii = unicode[0];
-    }
   }
 
   wmEvent e = *win->eventstate;
@@ -672,10 +668,8 @@ static wmEvent *rna_Window_event_add_simulate(wmWindow *win,
     e.modifier |= KM_OSKEY;
   }
 
-  e.ascii = '\0';
   e.utf8_buf[0] = '\0';
   if (unicode != NULL) {
-    e.ascii = ascii;
     STRNCPY(e.utf8_buf, unicode);
   }
 
diff --git a/source/blender/makesrna/intern/rna_wm_gizmo.c b/source/blender/makesrna/intern/rna_wm_gizmo.c
index 6c3d96726bb..0e307f5b424 100644
--- a/source/blender/makesrna/intern/rna_wm_gizmo.c
+++ b/source/blender/makesrna/intern/rna_wm_gizmo.c
@@ -1398,6 +1398,11 @@ static void rna_def_gizmogroup(BlenderRNA *brna)
        0,
        "Tool Init",
        "Postpone running until tool operator run (when used with a tool)"},
+      {WM_GIZMOGROUPTYPE_TOOL_FALLBACK_KEYMAP,
+       "TOOL_FALLBACK_KEYMAP",
+       0,
+       "Use fallback tools keymap",
+       "Add fallback tools keymap to this gizmo type."},
       {WM_GIZMOGROUPTYPE_VR_REDRAWS,
        "VR_REDRAWS",
        0,
diff --git a/source/blender/makesrna/intern/rna_wm_gizmo_api.c b/source/blender/makesrna/intern/rna_wm_gizmo_api.c
index 419dfa68305..760121d2279 100644
--- a/source/blender/makesrna/intern/rna_wm_gizmo_api.c
+++ b/source/blender/makesrna/intern/rna_wm_gizmo_api.c
@@ -211,7 +211,15 @@ void RNA_api_gizmo(StructRNA *srna)
   RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
   RNA_def_property_multi_array(parm, 2, rna_matrix_dimsize_4x4);
   RNA_def_property_ui_text(parm, "", "The matrix to transform");
-  RNA_def_int(func, "select_id", -1, -1, INT_MAX, "Zero when not selecting", "", -1, INT_MAX);
+  RNA_def_int(func,
+              "select_id",
+              -1,
+              -1,
+              INT_MAX,
+              "ID to use when gizmo is selectable.  Use -1 when not selecting",
+              "",
+              -1,
+              INT_MAX);
 
   /* draw_preset_box */
   func = RNA_def_function(srna, "draw_preset_arrow", "rna_gizmo_draw_preset_arrow");
@@ -221,7 +229,15 @@ void RNA_api_gizmo(StructRNA *srna)
   RNA_def_property_multi_array(parm, 2, rna_matrix_dimsize_4x4);
   RNA_def_property_ui_text(parm, "", "The matrix to transform");
   RNA_def_enum(func, "axis", rna_enum_object_axis_items, 2, "", "Arrow Orientation");
-  RNA_def_int(func, "select_id", -1, -1, INT_MAX, "Zero when not selecting", "", -1, INT_MAX);
+  RNA_def_int(func,
+              "select_id",
+              -1,
+              -1,
+              INT_MAX,
+              "ID to use when gizmo is selectable.  Use -1 when not selecting",
+              "",
+              -1,
+              INT_MAX);
 
   func = RNA_def_function(srna, "draw_preset_circle", "rna_gizmo_draw_preset_circle");
   RNA_def_function_ui_description(func, "Draw a box");
@@ -230,7 +246,15 @@ void RNA_api_gizmo(StructRNA *srna)
   RNA_def_property_multi_array(parm, 2, rna_matrix_dimsize_4x4);
   RNA_def_property_ui_text(parm, "", "The matrix to transform");
   RNA_def_enum(func, "axis", rna_enum_object_axis_items, 2, "", "Arrow Orientation");
-  RNA_def_int(func, "select_id", -1, -1, INT_MAX, "Zero when not selecting", "", -1, INT_MAX);
+  RNA_def_int(func,
+              "select_id",
+              -1,
+              -1,
+              INT_MAX,
+              "ID to use when gizmo is selectable.  Use -1 when not selecting",
+              "",
+              -1,
+              INT_MAX);
 
   /* -------------------------------------------------------------------- */
   /* Other Shapes */
@@ -243,7 +267,15 @@ void RNA_api_gizmo(StructRNA *srna)
   RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED);
   parm = RNA_def_int(func, "face_map", 0, 0, INT_MAX, "Face map index", "", 0, INT_MAX);
   RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
-  RNA_def_int(func, "select_id", -1, -1, INT_MAX, "Zero when not selecting", "", -1, INT_MAX);
+  RNA_def_int(func,
+              "select_id",
+              -1,
+              -1,
+              INT_MAX,
+              "ID to use when gizmo is selectable.  Use -1 when not selecting",
+              "",
+              -1,
+              INT_MAX);
 
   /* -------------------------------------------------------------------- */
   /* Property API */
diff --git a/source/blender/modifiers/CMakeLists.txt b/source/blender/modifiers/CMakeLists.txt
index 1aac3c2191d..73daabec9b3 100644
--- a/source/blender/modifiers/CMakeLists.txt
+++ b/source/blender/modifiers/CMakeLists.txt
@@ -217,7 +217,6 @@ endif()
 
 if(WITH_EXPERIMENTAL_FEATURES)
   add_definitions(-DWITH_SIMULATION_DATABLOCK)
-  add_definitions(-DWITH_NEW_CURVES_TYPE)
 endif()
 
 # So we can have special tricks in modifier system.
diff --git a/source/blender/modifiers/intern/MOD_armature.c b/source/blender/modifiers/intern/MOD_armature.c
index f6e8a26f0e1..15ad361a262 100644
--- a/source/blender/modifiers/intern/MOD_armature.c
+++ b/source/blender/modifiers/intern/MOD_armature.c
@@ -266,7 +266,7 @@ static void blendRead(BlendDataReader *UNUSED(reader), ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_Armature = {
-    /* name */ "Armature",
+    /* name */ N_("Armature"),
     /* structName */ "ArmatureModifierData",
     /* structSize */ sizeof(ArmatureModifierData),
     /* srna */ &RNA_ArmatureModifier,
diff --git a/source/blender/modifiers/intern/MOD_array.c b/source/blender/modifiers/intern/MOD_array.c
index 77915702ee4..a7361f6d0b6 100644
--- a/source/blender/modifiers/intern/MOD_array.c
+++ b/source/blender/modifiers/intern/MOD_array.c
@@ -1002,7 +1002,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Array = {
-    /* name */ "Array",
+    /* name */ N_("Array"),
     /* structName */ "ArrayModifierData",
     /* structSize */ sizeof(ArrayModifierData),
     /* srna */ &RNA_ArrayModifier,
diff --git a/source/blender/modifiers/intern/MOD_bevel.c b/source/blender/modifiers/intern/MOD_bevel.c
index c634873cfe4..94f2090e081 100644
--- a/source/blender/modifiers/intern/MOD_bevel.c
+++ b/source/blender/modifiers/intern/MOD_bevel.c
@@ -417,7 +417,7 @@ static void blendRead(BlendDataReader *reader, ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_Bevel = {
-    /* name */ "Bevel",
+    /* name */ N_("Bevel"),
     /* structName */ "BevelModifierData",
     /* structSize */ sizeof(BevelModifierData),
     /* srna */ &RNA_BevelModifier,
diff --git a/source/blender/modifiers/intern/MOD_boolean.cc b/source/blender/modifiers/intern/MOD_boolean.cc
index 09676d0e9ee..c9dc14b3b20 100644
--- a/source/blender/modifiers/intern/MOD_boolean.cc
+++ b/source/blender/modifiers/intern/MOD_boolean.cc
@@ -639,7 +639,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Boolean = {
-    /* name */ "Boolean",
+    /* name */ N_("Boolean"),
     /* structName */ "BooleanModifierData",
     /* structSize */ sizeof(BooleanModifierData),
     /* srna */ &RNA_BooleanModifier,
diff --git a/source/blender/modifiers/intern/MOD_build.c b/source/blender/modifiers/intern/MOD_build.c
index 687ff04cedf..a9b6af967be 100644
--- a/source/blender/modifiers/intern/MOD_build.c
+++ b/source/blender/modifiers/intern/MOD_build.c
@@ -13,6 +13,8 @@
 #include "BLI_math_vector.h"
 #include "BLI_rand.h"
 
+#include "BLT_translation.h"
+
 #include "DNA_defaults.h"
 #include "DNA_mesh_types.h"
 #include "DNA_meshdata_types.h"
@@ -311,7 +313,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Build = {
-    /* name */ "Build",
+    /* name */ N_("Build"),
     /* structName */ "BuildModifierData",
     /* structSize */ sizeof(BuildModifierData),
     /* srna */ &RNA_BuildModifier,
diff --git a/source/blender/modifiers/intern/MOD_cast.c b/source/blender/modifiers/intern/MOD_cast.c
index 3916551bc90..9aaf7fead36 100644
--- a/source/blender/modifiers/intern/MOD_cast.c
+++ b/source/blender/modifiers/intern/MOD_cast.c
@@ -559,7 +559,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Cast = {
-    /* name */ "Cast",
+    /* name */ N_("Cast"),
     /* structName */ "CastModifierData",
     /* structSize */ sizeof(CastModifierData),
     /* srna */ &RNA_CastModifier,
diff --git a/source/blender/modifiers/intern/MOD_cloth.c b/source/blender/modifiers/intern/MOD_cloth.c
index 185b05b4cf9..cc0bd87d614 100644
--- a/source/blender/modifiers/intern/MOD_cloth.c
+++ b/source/blender/modifiers/intern/MOD_cloth.c
@@ -275,7 +275,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Cloth = {
-    /* name */ "Cloth",
+    /* name */ N_("Cloth"),
     /* structName */ "ClothModifierData",
     /* structSize */ sizeof(ClothModifierData),
     /* srna */ &RNA_ClothModifier,
diff --git a/source/blender/modifiers/intern/MOD_collision.c b/source/blender/modifiers/intern/MOD_collision.c
index f9cd3d5937d..74cb4ac700a 100644
--- a/source/blender/modifiers/intern/MOD_collision.c
+++ b/source/blender/modifiers/intern/MOD_collision.c
@@ -284,7 +284,7 @@ static void blendRead(BlendDataReader *UNUSED(reader), ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_Collision = {
-    /* name */ "Collision",
+    /* name */ N_("Collision"),
     /* structName */ "CollisionModifierData",
     /* structSize */ sizeof(CollisionModifierData),
     /* srna */ &RNA_CollisionModifier,
diff --git a/source/blender/modifiers/intern/MOD_correctivesmooth.c b/source/blender/modifiers/intern/MOD_correctivesmooth.c
index 3698f4403a1..2beb1be6749 100644
--- a/source/blender/modifiers/intern/MOD_correctivesmooth.c
+++ b/source/blender/modifiers/intern/MOD_correctivesmooth.c
@@ -835,7 +835,7 @@ static void blendRead(BlendDataReader *reader, ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_CorrectiveSmooth = {
-    /* name */ "CorrectiveSmooth",
+    /* name */ N_("CorrectiveSmooth"),
     /* structName */ "CorrectiveSmoothModifierData",
     /* structSize */ sizeof(CorrectiveSmoothModifierData),
     /* srna */ &RNA_CorrectiveSmoothModifier,
diff --git a/source/blender/modifiers/intern/MOD_curve.c b/source/blender/modifiers/intern/MOD_curve.c
index a82b999f4dc..48a59f4d949 100644
--- a/source/blender/modifiers/intern/MOD_curve.c
+++ b/source/blender/modifiers/intern/MOD_curve.c
@@ -203,7 +203,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Curve = {
-    /* name */ "Curve",
+    /* name */ N_("Curve"),
     /* structName */ "CurveModifierData",
     /* structSize */ sizeof(CurveModifierData),
     /* srna */ &RNA_CurveModifier,
diff --git a/source/blender/modifiers/intern/MOD_datatransfer.c b/source/blender/modifiers/intern/MOD_datatransfer.c
index a3b088799cc..e9f1cf47e38 100644
--- a/source/blender/modifiers/intern/MOD_datatransfer.c
+++ b/source/blender/modifiers/intern/MOD_datatransfer.c
@@ -474,7 +474,7 @@ static void panelRegister(ARegionType *region_type)
 #undef DT_TYPES_AFFECT_MESH
 
 ModifierTypeInfo modifierType_DataTransfer = {
-    /* name */ "DataTransfer",
+    /* name */ N_("DataTransfer"),
     /* structName */ "DataTransferModifierData",
     /* structSize */ sizeof(DataTransferModifierData),
     /* srna */ &RNA_DataTransferModifier,
diff --git a/source/blender/modifiers/intern/MOD_decimate.c b/source/blender/modifiers/intern/MOD_decimate.c
index 70f028d6907..3df4fbcbea8 100644
--- a/source/blender/modifiers/intern/MOD_decimate.c
+++ b/source/blender/modifiers/intern/MOD_decimate.c
@@ -271,7 +271,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Decimate = {
-    /* name */ "Decimate",
+    /* name */ N_("Decimate"),
     /* structName */ "DecimateModifierData",
     /* structSize */ sizeof(DecimateModifierData),
     /* srna */ &RNA_DecimateModifier,
diff --git a/source/blender/modifiers/intern/MOD_displace.c b/source/blender/modifiers/intern/MOD_displace.c
index 1e2224e3a65..5289fc42e21 100644
--- a/source/blender/modifiers/intern/MOD_displace.c
+++ b/source/blender/modifiers/intern/MOD_displace.c
@@ -473,7 +473,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Displace = {
-    /* name */ "Displace",
+    /* name */ N_("Displace"),
     /* structName */ "DisplaceModifierData",
     /* structSize */ sizeof(DisplaceModifierData),
     /* srna */ &RNA_DisplaceModifier,
diff --git a/source/blender/modifiers/intern/MOD_dynamicpaint.c b/source/blender/modifiers/intern/MOD_dynamicpaint.c
index 6b0578c77f1..4afb81c04a9 100644
--- a/source/blender/modifiers/intern/MOD_dynamicpaint.c
+++ b/source/blender/modifiers/intern/MOD_dynamicpaint.c
@@ -189,7 +189,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_DynamicPaint = {
-    /* name */ "Dynamic Paint",
+    /* name */ N_("Dynamic Paint"),
     /* structName */ "DynamicPaintModifierData",
     /* structSize */ sizeof(DynamicPaintModifierData),
     /* srna */ &RNA_DynamicPaintModifier,
diff --git a/source/blender/modifiers/intern/MOD_edgesplit.c b/source/blender/modifiers/intern/MOD_edgesplit.c
index 49ddcb9a61d..b381ff32aa2 100644
--- a/source/blender/modifiers/intern/MOD_edgesplit.c
+++ b/source/blender/modifiers/intern/MOD_edgesplit.c
@@ -154,7 +154,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_EdgeSplit = {
-    /* name */ "EdgeSplit",
+    /* name */ N_("EdgeSplit"),
     /* structName */ "EdgeSplitModifierData",
     /* structSize */ sizeof(EdgeSplitModifierData),
     /* srna */ &RNA_EdgeSplitModifier,
diff --git a/source/blender/modifiers/intern/MOD_explode.c b/source/blender/modifiers/intern/MOD_explode.c
index f88e930e127..ff0616fd288 100644
--- a/source/blender/modifiers/intern/MOD_explode.c
+++ b/source/blender/modifiers/intern/MOD_explode.c
@@ -1224,7 +1224,7 @@ static void blendRead(BlendDataReader *UNUSED(reader), ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_Explode = {
-    /* name */ "Explode",
+    /* name */ N_("Explode"),
     /* structName */ "ExplodeModifierData",
     /* structSize */ sizeof(ExplodeModifierData),
     /* srna */ &RNA_ExplodeModifier,
diff --git a/source/blender/modifiers/intern/MOD_fluid.c b/source/blender/modifiers/intern/MOD_fluid.c
index 562f0df510d..a3e9cd083d2 100644
--- a/source/blender/modifiers/intern/MOD_fluid.c
+++ b/source/blender/modifiers/intern/MOD_fluid.c
@@ -241,7 +241,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Fluid = {
-    /* name */ "Fluid",
+    /* name */ N_("Fluid"),
     /* structName */ "FluidModifierData",
     /* structSize */ sizeof(FluidModifierData),
     /* srna */ &RNA_FluidModifier,
diff --git a/source/blender/modifiers/intern/MOD_hook.c b/source/blender/modifiers/intern/MOD_hook.c
index 3649ece12e1..3c4e6b0d90f 100644
--- a/source/blender/modifiers/intern/MOD_hook.c
+++ b/source/blender/modifiers/intern/MOD_hook.c
@@ -545,7 +545,7 @@ static void blendRead(BlendDataReader *reader, ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_Hook = {
-    /* name */ "Hook",
+    /* name */ N_("Hook"),
     /* structName */ "HookModifierData",
     /* structSize */ sizeof(HookModifierData),
     /* srna */ &RNA_HookModifier,
diff --git a/source/blender/modifiers/intern/MOD_laplaciandeform.c b/source/blender/modifiers/intern/MOD_laplaciandeform.c
index a22f4b35e0d..e29098eb218 100644
--- a/source/blender/modifiers/intern/MOD_laplaciandeform.c
+++ b/source/blender/modifiers/intern/MOD_laplaciandeform.c
@@ -875,7 +875,7 @@ static void blendRead(BlendDataReader *reader, ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_LaplacianDeform = {
-    /* name */ "LaplacianDeform",
+    /* name */ N_("LaplacianDeform"),
     /* structName */ "LaplacianDeformModifierData",
     /* structSize */ sizeof(LaplacianDeformModifierData),
     /* srna */ &RNA_LaplacianDeformModifier,
diff --git a/source/blender/modifiers/intern/MOD_laplaciansmooth.c b/source/blender/modifiers/intern/MOD_laplaciansmooth.c
index 95283b1cd20..2cce0c14e4c 100644
--- a/source/blender/modifiers/intern/MOD_laplaciansmooth.c
+++ b/source/blender/modifiers/intern/MOD_laplaciansmooth.c
@@ -608,7 +608,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_LaplacianSmooth = {
-    /* name */ "LaplacianSmooth",
+    /* name */ N_("LaplacianSmooth"),
     /* structName */ "LaplacianSmoothModifierData",
     /* structSize */ sizeof(LaplacianSmoothModifierData),
     /* srna */ &RNA_LaplacianSmoothModifier,
diff --git a/source/blender/modifiers/intern/MOD_lattice.c b/source/blender/modifiers/intern/MOD_lattice.c
index 832372304a0..0e1994eed36 100644
--- a/source/blender/modifiers/intern/MOD_lattice.c
+++ b/source/blender/modifiers/intern/MOD_lattice.c
@@ -160,7 +160,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Lattice = {
-    /* name */ "Lattice",
+    /* name */ N_("Lattice"),
     /* structName */ "LatticeModifierData",
     /* structSize */ sizeof(LatticeModifierData),
     /* srna */ &RNA_LatticeModifier,
diff --git a/source/blender/modifiers/intern/MOD_mask.cc b/source/blender/modifiers/intern/MOD_mask.cc
index 0813901fc49..fac3ea36537 100644
--- a/source/blender/modifiers/intern/MOD_mask.cc
+++ b/source/blender/modifiers/intern/MOD_mask.cc
@@ -804,7 +804,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Mask = {
-    /* name */ "Mask",
+    /* name */ N_("Mask"),
     /* structName */ "MaskModifierData",
     /* structSize */ sizeof(MaskModifierData),
     /* srna */ &RNA_MaskModifier,
diff --git a/source/blender/modifiers/intern/MOD_mesh_to_volume.cc b/source/blender/modifiers/intern/MOD_mesh_to_volume.cc
index 01c1875a760..7d4affa2dce 100644
--- a/source/blender/modifiers/intern/MOD_mesh_to_volume.cc
+++ b/source/blender/modifiers/intern/MOD_mesh_to_volume.cc
@@ -7,6 +7,7 @@
 #include <vector>
 
 #include "BKE_geometry_set.hh"
+#include "BKE_lib_id.h"
 #include "BKE_lib_query.h"
 #include "BKE_mesh_runtime.h"
 #include "BKE_mesh_wrapper.h"
@@ -14,6 +15,8 @@
 #include "BKE_object.h"
 #include "BKE_volume.h"
 
+#include "BLT_translation.h"
+
 #include "DNA_mesh_types.h"
 #include "DNA_meshdata_types.h"
 #include "DNA_object_types.h"
@@ -161,7 +164,13 @@ static Volume *mesh_to_volume(ModifierData *md,
                                                                mesh_to_own_object_space_transform);
 
   /* Create a new volume. */
-  Volume *volume = BKE_volume_new_for_eval(input_volume);
+  Volume *volume;
+  if (input_volume == nullptr) {
+    volume = static_cast<Volume *>(BKE_id_new_nomain(ID_VO, "Volume"));
+  }
+  else {
+    volume = BKE_volume_new_for_eval(input_volume);
+  }
 
   /* Convert mesh to grid and add to volume. */
   geometry::volume_grid_add_from_mesh(volume,
@@ -195,7 +204,7 @@ static void modifyGeometrySet(ModifierData *md,
 }
 
 ModifierTypeInfo modifierType_MeshToVolume = {
-    /* name */ "Mesh to Volume",
+    /* name */ N_("Mesh to Volume"),
     /* structName */ "MeshToVolumeModifierData",
     /* structSize */ sizeof(MeshToVolumeModifierData),
     /* srna */ &RNA_MeshToVolumeModifier,
diff --git a/source/blender/modifiers/intern/MOD_meshcache.c b/source/blender/modifiers/intern/MOD_meshcache.c
index 6f065797b43..8dfdd07ace9 100644
--- a/source/blender/modifiers/intern/MOD_meshcache.c
+++ b/source/blender/modifiers/intern/MOD_meshcache.c
@@ -416,7 +416,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_MeshCache = {
-    /* name */ "MeshCache",
+    /* name */ N_("MeshCache"),
     /* structName */ "MeshCacheModifierData",
     /* structSize */ sizeof(MeshCacheModifierData),
     /* srna */ &RNA_MeshCacheModifier,
diff --git a/source/blender/modifiers/intern/MOD_meshdeform.c b/source/blender/modifiers/intern/MOD_meshdeform.c
index 5dac31ac1df..40aa0f84f92 100644
--- a/source/blender/modifiers/intern/MOD_meshdeform.c
+++ b/source/blender/modifiers/intern/MOD_meshdeform.c
@@ -650,7 +650,7 @@ static void blendRead(BlendDataReader *reader, ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_MeshDeform = {
-    /* name */ "MeshDeform",
+    /* name */ N_("MeshDeform"),
     /* structName */ "MeshDeformModifierData",
     /* structSize */ sizeof(MeshDeformModifierData),
     /* srna */ &RNA_MeshDeformModifier,
diff --git a/source/blender/modifiers/intern/MOD_meshsequencecache.cc b/source/blender/modifiers/intern/MOD_meshsequencecache.cc
index 273050eafd8..1c35160d3ef 100644
--- a/source/blender/modifiers/intern/MOD_meshsequencecache.cc
+++ b/source/blender/modifiers/intern/MOD_meshsequencecache.cc
@@ -392,7 +392,7 @@ static void blendRead(BlendDataReader *UNUSED(reader), ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_MeshSequenceCache = {
-    /* name */ "MeshSequenceCache",
+    /* name */ N_("MeshSequenceCache"),
     /* structName */ "MeshSeqCacheModifierData",
     /* structSize */ sizeof(MeshSeqCacheModifierData),
     /* srna */ &RNA_MeshSequenceCacheModifier,
diff --git a/source/blender/modifiers/intern/MOD_mirror.c b/source/blender/modifiers/intern/MOD_mirror.c
index b6ba8c9e0f9..5f095a72dca 100644
--- a/source/blender/modifiers/intern/MOD_mirror.c
+++ b/source/blender/modifiers/intern/MOD_mirror.c
@@ -204,7 +204,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Mirror = {
-    /* name */ "Mirror",
+    /* name */ N_("Mirror"),
     /* structName */ "MirrorModifierData",
     /* structSize */ sizeof(MirrorModifierData),
     /* srna */ &RNA_MirrorModifier,
diff --git a/source/blender/modifiers/intern/MOD_multires.c b/source/blender/modifiers/intern/MOD_multires.c
index a4c5ddac5c9..cdad834f9b4 100644
--- a/source/blender/modifiers/intern/MOD_multires.c
+++ b/source/blender/modifiers/intern/MOD_multires.c
@@ -487,7 +487,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Multires = {
-    /* name */ "Multires",
+    /* name */ N_("Multires"),
     /* structName */ "MultiresModifierData",
     /* structSize */ sizeof(MultiresModifierData),
     /* srna */ &RNA_MultiresModifier,
diff --git a/source/blender/modifiers/intern/MOD_nodes.cc b/source/blender/modifiers/intern/MOD_nodes.cc
index 885d2f901ec..01e4d5ff6b3 100644
--- a/source/blender/modifiers/intern/MOD_nodes.cc
+++ b/source/blender/modifiers/intern/MOD_nodes.cc
@@ -1825,7 +1825,7 @@ static void requiredDataMask(Object *UNUSED(ob),
 }
 
 ModifierTypeInfo modifierType_Nodes = {
-    /* name */ "GeometryNodes",
+    /* name */ N_("GeometryNodes"),
     /* structName */ "NodesModifierData",
     /* structSize */ sizeof(NodesModifierData),
     /* srna */ &RNA_NodesModifier,
diff --git a/source/blender/modifiers/intern/MOD_normal_edit.c b/source/blender/modifiers/intern/MOD_normal_edit.c
index c215ac601a1..09bc9546325 100644
--- a/source/blender/modifiers/intern/MOD_normal_edit.c
+++ b/source/blender/modifiers/intern/MOD_normal_edit.c
@@ -756,7 +756,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_NormalEdit = {
-    /* name */ "NormalEdit",
+    /* name */ N_("NormalEdit"),
     /* structName */ "NormalEditModifierData",
     /* structSize */ sizeof(NormalEditModifierData),
     /* srna */ &RNA_NormalEditModifier,
diff --git a/source/blender/modifiers/intern/MOD_ocean.c b/source/blender/modifiers/intern/MOD_ocean.c
index 75708851030..ea9049200cc 100644
--- a/source/blender/modifiers/intern/MOD_ocean.c
+++ b/source/blender/modifiers/intern/MOD_ocean.c
@@ -701,7 +701,7 @@ static void blendRead(BlendDataReader *UNUSED(reader), ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_Ocean = {
-    /* name */ "Ocean",
+    /* name */ N_("Ocean"),
     /* structName */ "OceanModifierData",
     /* structSize */ sizeof(OceanModifierData),
     /* srna */ &RNA_OceanModifier,
diff --git a/source/blender/modifiers/intern/MOD_particleinstance.c b/source/blender/modifiers/intern/MOD_particleinstance.c
index 2a8d2454670..5018b2d1030 100644
--- a/source/blender/modifiers/intern/MOD_particleinstance.c
+++ b/source/blender/modifiers/intern/MOD_particleinstance.c
@@ -644,7 +644,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_ParticleInstance = {
-    /* name */ "ParticleInstance",
+    /* name */ N_("ParticleInstance"),
     /* structName */ "ParticleInstanceModifierData",
     /* structSize */ sizeof(ParticleInstanceModifierData),
     /* srna */ &RNA_ParticleInstanceModifier,
diff --git a/source/blender/modifiers/intern/MOD_particlesystem.cc b/source/blender/modifiers/intern/MOD_particlesystem.cc
index ccbc8f1d835..7f7465947f9 100644
--- a/source/blender/modifiers/intern/MOD_particlesystem.cc
+++ b/source/blender/modifiers/intern/MOD_particlesystem.cc
@@ -301,7 +301,7 @@ static void blendRead(BlendDataReader *reader, ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_ParticleSystem = {
-    /* name */ "ParticleSystem",
+    /* name */ N_("ParticleSystem"),
     /* structName */ "ParticleSystemModifierData",
     /* structSize */ sizeof(ParticleSystemModifierData),
     /* srna */ &RNA_ParticleSystemModifier,
diff --git a/source/blender/modifiers/intern/MOD_remesh.c b/source/blender/modifiers/intern/MOD_remesh.c
index 288faee247f..f21d536fadf 100644
--- a/source/blender/modifiers/intern/MOD_remesh.c
+++ b/source/blender/modifiers/intern/MOD_remesh.c
@@ -268,7 +268,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Remesh = {
-    /* name */ "Remesh",
+    /* name */ N_("Remesh"),
     /* structName */ "RemeshModifierData",
     /* structSize */ sizeof(RemeshModifierData),
     /* srna */ &RNA_RemeshModifier,
diff --git a/source/blender/modifiers/intern/MOD_screw.c b/source/blender/modifiers/intern/MOD_screw.c
index 0e22f59c2fb..9588b9acd3b 100644
--- a/source/blender/modifiers/intern/MOD_screw.c
+++ b/source/blender/modifiers/intern/MOD_screw.c
@@ -1235,7 +1235,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Screw = {
-    /* name */ "Screw",
+    /* name */ N_("Screw"),
     /* structName */ "ScrewModifierData",
     /* structSize */ sizeof(ScrewModifierData),
     /* srna */ &RNA_ScrewModifier,
diff --git a/source/blender/modifiers/intern/MOD_shapekey.c b/source/blender/modifiers/intern/MOD_shapekey.c
index 6953e89dfc2..cc214c1147a 100644
--- a/source/blender/modifiers/intern/MOD_shapekey.c
+++ b/source/blender/modifiers/intern/MOD_shapekey.c
@@ -9,6 +9,8 @@
 
 #include "BLI_math.h"
 
+#include "BLT_translation.h"
+
 #include "DNA_key_types.h"
 #include "DNA_mesh_types.h"
 #include "DNA_object_types.h"
@@ -108,7 +110,7 @@ static void deformMatricesEM(ModifierData *UNUSED(md),
 }
 
 ModifierTypeInfo modifierType_ShapeKey = {
-    /* name */ "ShapeKey",
+    /* name */ N_("ShapeKey"),
     /* structName */ "ShapeKeyModifierData",
     /* structSize */ sizeof(ShapeKeyModifierData),
     /* srna */ &RNA_Modifier,
diff --git a/source/blender/modifiers/intern/MOD_shrinkwrap.c b/source/blender/modifiers/intern/MOD_shrinkwrap.c
index 488df3d6f4c..be12dc6639b 100644
--- a/source/blender/modifiers/intern/MOD_shrinkwrap.c
+++ b/source/blender/modifiers/intern/MOD_shrinkwrap.c
@@ -260,7 +260,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Shrinkwrap = {
-    /* name */ "Shrinkwrap",
+    /* name */ N_("Shrinkwrap"),
     /* structName */ "ShrinkwrapModifierData",
     /* structSize */ sizeof(ShrinkwrapModifierData),
     /* srna */ &RNA_ShrinkwrapModifier,
diff --git a/source/blender/modifiers/intern/MOD_simpledeform.c b/source/blender/modifiers/intern/MOD_simpledeform.c
index e3c7f1c423b..9f1d0cd36c4 100644
--- a/source/blender/modifiers/intern/MOD_simpledeform.c
+++ b/source/blender/modifiers/intern/MOD_simpledeform.c
@@ -564,7 +564,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_SimpleDeform = {
-    /* name */ "SimpleDeform",
+    /* name */ N_("SimpleDeform"),
     /* structName */ "SimpleDeformModifierData",
     /* structSize */ sizeof(SimpleDeformModifierData),
     /* srna */ &RNA_SimpleDeformModifier,
diff --git a/source/blender/modifiers/intern/MOD_skin.c b/source/blender/modifiers/intern/MOD_skin.c
index 5f238209015..84795cdb2d9 100644
--- a/source/blender/modifiers/intern/MOD_skin.c
+++ b/source/blender/modifiers/intern/MOD_skin.c
@@ -2069,7 +2069,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Skin = {
-    /* name */ "Skin",
+    /* name */ N_("Skin"),
     /* structName */ "SkinModifierData",
     /* structSize */ sizeof(SkinModifierData),
     /* srna */ &RNA_SkinModifier,
diff --git a/source/blender/modifiers/intern/MOD_smooth.c b/source/blender/modifiers/intern/MOD_smooth.c
index 5439083d9a7..c868c47cb90 100644
--- a/source/blender/modifiers/intern/MOD_smooth.c
+++ b/source/blender/modifiers/intern/MOD_smooth.c
@@ -253,7 +253,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Smooth = {
-    /* name */ "Smooth",
+    /* name */ N_("Smooth"),
     /* structName */ "SmoothModifierData",
     /* structSize */ sizeof(SmoothModifierData),
     /* srna */ &RNA_SmoothModifier,
diff --git a/source/blender/modifiers/intern/MOD_softbody.c b/source/blender/modifiers/intern/MOD_softbody.c
index d8379cc870a..a49f2609641 100644
--- a/source/blender/modifiers/intern/MOD_softbody.c
+++ b/source/blender/modifiers/intern/MOD_softbody.c
@@ -86,7 +86,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Softbody = {
-    /* name */ "Softbody",
+    /* name */ N_("Softbody"),
     /* structName */ "SoftbodyModifierData",
     /* structSize */ sizeof(SoftbodyModifierData),
     /* srna */ &RNA_SoftBodyModifier,
diff --git a/source/blender/modifiers/intern/MOD_solidify.c b/source/blender/modifiers/intern/MOD_solidify.c
index 1f0aee7d689..3e2d590c928 100644
--- a/source/blender/modifiers/intern/MOD_solidify.c
+++ b/source/blender/modifiers/intern/MOD_solidify.c
@@ -241,7 +241,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Solidify = {
-    /* name */ "Solidify",
+    /* name */ N_("Solidify"),
     /* structName */ "SolidifyModifierData",
     /* structSize */ sizeof(SolidifyModifierData),
     /* srna */ &RNA_SolidifyModifier,
diff --git a/source/blender/modifiers/intern/MOD_subsurf.c b/source/blender/modifiers/intern/MOD_subsurf.c
index 23f447f2469..8faf2bdbea2 100644
--- a/source/blender/modifiers/intern/MOD_subsurf.c
+++ b/source/blender/modifiers/intern/MOD_subsurf.c
@@ -472,7 +472,7 @@ static void blendRead(BlendDataReader *UNUSED(reader), ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_Subsurf = {
-    /* name */ "Subdivision",
+    /* name */ N_("Subdivision"),
     /* structName */ "SubsurfModifierData",
     /* structSize */ sizeof(SubsurfModifierData),
     /* srna */ &RNA_SubsurfModifier,
diff --git a/source/blender/modifiers/intern/MOD_surface.c b/source/blender/modifiers/intern/MOD_surface.c
index af1de77d8c9..8cfe3b35949 100644
--- a/source/blender/modifiers/intern/MOD_surface.c
+++ b/source/blender/modifiers/intern/MOD_surface.c
@@ -211,7 +211,7 @@ static void blendRead(BlendDataReader *UNUSED(reader), ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_Surface = {
-    /* name */ "Surface",
+    /* name */ N_("Surface"),
     /* structName */ "SurfaceModifierData",
     /* structSize */ sizeof(SurfaceModifierData),
     /* srna */ &RNA_SurfaceModifier,
diff --git a/source/blender/modifiers/intern/MOD_surfacedeform.c b/source/blender/modifiers/intern/MOD_surfacedeform.c
index 20cc9b2392f..edc6819a26c 100644
--- a/source/blender/modifiers/intern/MOD_surfacedeform.c
+++ b/source/blender/modifiers/intern/MOD_surfacedeform.c
@@ -1521,11 +1521,11 @@ static void surfacedeformModifier_do(ModifierData *md,
      * added after the original ones. This covers typical case when target was at the subdivision
      * level 0 and then subdivision was increased (i.e. for the render purposes). */
 
-    BKE_modifier_set_error(ob,
-                           md,
-                           "Target vertices changed from %u to %u, continuing anyway",
-                           smd->target_verts_num,
-                           target_verts_num);
+    BKE_modifier_set_warning(ob,
+                             md,
+                             "Target vertices changed from %u to %u, continuing anyway",
+                             smd->target_verts_num,
+                             target_verts_num);
 
     /* In theory we only need the `smd->verts_num` vertices in the `targetCos` for evaluation, but
      * it is not currently possible to request a subset of coordinates: the API expects that the
@@ -1741,7 +1741,7 @@ static void blendRead(BlendDataReader *reader, ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_SurfaceDeform = {
-    /* name */ "SurfaceDeform",
+    /* name */ N_("SurfaceDeform"),
     /* structName */ "SurfaceDeformModifierData",
     /* structSize */ sizeof(SurfaceDeformModifierData),
     /* srna */ &RNA_SurfaceDeformModifier,
diff --git a/source/blender/modifiers/intern/MOD_triangulate.c b/source/blender/modifiers/intern/MOD_triangulate.c
index f1e8ef5bf38..d4faf682cdc 100644
--- a/source/blender/modifiers/intern/MOD_triangulate.c
+++ b/source/blender/modifiers/intern/MOD_triangulate.c
@@ -139,7 +139,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Triangulate = {
-    /* name */ "Triangulate",
+    /* name */ N_("Triangulate"),
     /* structName */ "TriangulateModifierData",
     /* structSize */ sizeof(TriangulateModifierData),
     /* srna */ &RNA_TriangulateModifier,
diff --git a/source/blender/modifiers/intern/MOD_uvproject.c b/source/blender/modifiers/intern/MOD_uvproject.c
index d4d7ecef283..0474d3e47e6 100644
--- a/source/blender/modifiers/intern/MOD_uvproject.c
+++ b/source/blender/modifiers/intern/MOD_uvproject.c
@@ -349,7 +349,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_UVProject = {
-    /* name */ "UVProject",
+    /* name */ N_("UVProject"),
     /* structName */ "UVProjectModifierData",
     /* structSize */ sizeof(UVProjectModifierData),
     /* srna */ &RNA_UVProjectModifier,
diff --git a/source/blender/modifiers/intern/MOD_uvwarp.c b/source/blender/modifiers/intern/MOD_uvwarp.c
index a15efdaa381..c33b25c38e3 100644
--- a/source/blender/modifiers/intern/MOD_uvwarp.c
+++ b/source/blender/modifiers/intern/MOD_uvwarp.c
@@ -308,7 +308,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_UVWarp = {
-    /* name */ "UVWarp",
+    /* name */ N_("UVWarp"),
     /* structName */ "UVWarpModifierData",
     /* structSize */ sizeof(UVWarpModifierData),
     /* srna */ &RNA_UVWarpModifier,
diff --git a/source/blender/modifiers/intern/MOD_volume_displace.cc b/source/blender/modifiers/intern/MOD_volume_displace.cc
index 059cfdbdd4e..d9b94d79348 100644
--- a/source/blender/modifiers/intern/MOD_volume_displace.cc
+++ b/source/blender/modifiers/intern/MOD_volume_displace.cc
@@ -12,6 +12,8 @@
 #include "BKE_texture.h"
 #include "BKE_volume.h"
 
+#include "BLT_translation.h"
+
 #include "DNA_mesh_types.h"
 #include "DNA_meshdata_types.h"
 #include "DNA_object_types.h"
@@ -307,7 +309,7 @@ static void modifyGeometrySet(ModifierData *md,
 }
 
 ModifierTypeInfo modifierType_VolumeDisplace = {
-    /* name */ "Volume Displace",
+    /* name */ N_("Volume Displace"),
     /* structName */ "VolumeDisplaceModifierData",
     /* structSize */ sizeof(VolumeDisplaceModifierData),
     /* srna */ &RNA_VolumeDisplaceModifier,
diff --git a/source/blender/modifiers/intern/MOD_volume_to_mesh.cc b/source/blender/modifiers/intern/MOD_volume_to_mesh.cc
index d33687e4d92..3292f73137a 100644
--- a/source/blender/modifiers/intern/MOD_volume_to_mesh.cc
+++ b/source/blender/modifiers/intern/MOD_volume_to_mesh.cc
@@ -12,6 +12,8 @@
 #include "BKE_volume.h"
 #include "BKE_volume_to_mesh.hh"
 
+#include "BLT_translation.h"
+
 #include "MOD_modifiertypes.h"
 #include "MOD_ui_common.h"
 
@@ -193,7 +195,7 @@ static Mesh *modifyMesh(ModifierData *md, const ModifierEvalContext *ctx, Mesh *
 }
 
 ModifierTypeInfo modifierType_VolumeToMesh = {
-    /* name */ "Volume to Mesh",
+    /* name */ N_("Volume to Mesh"),
     /* structName */ "VolumeToMeshModifierData",
     /* structSize */ sizeof(VolumeToMeshModifierData),
     /* srna */ &RNA_VolumeToMeshModifier,
diff --git a/source/blender/modifiers/intern/MOD_warp.c b/source/blender/modifiers/intern/MOD_warp.c
index 9693cf0c0f2..afdc230a877 100644
--- a/source/blender/modifiers/intern/MOD_warp.c
+++ b/source/blender/modifiers/intern/MOD_warp.c
@@ -510,7 +510,7 @@ static void blendRead(BlendDataReader *reader, ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_Warp = {
-    /* name */ "Warp",
+    /* name */ N_("Warp"),
     /* structName */ "WarpModifierData",
     /* structSize */ sizeof(WarpModifierData),
     /* srna */ &RNA_WarpModifier,
diff --git a/source/blender/modifiers/intern/MOD_wave.c b/source/blender/modifiers/intern/MOD_wave.c
index 4073f028db5..b92e3a0fa9d 100644
--- a/source/blender/modifiers/intern/MOD_wave.c
+++ b/source/blender/modifiers/intern/MOD_wave.c
@@ -372,7 +372,7 @@ static void panel_draw(const bContext *UNUSED(C), Panel *panel)
   uiItemR(sub, ptr, "use_normal_z", UI_ITEM_R_TOGGLE, "Z", ICON_NONE);
 
   col = uiLayoutColumn(layout, false);
-  uiItemR(col, ptr, "falloff_radius", 0, "Falloff", ICON_NONE);
+  uiItemR(col, ptr, "falloff_radius", 0, IFACE_("Falloff"), ICON_NONE);
   uiItemR(col, ptr, "height", UI_ITEM_R_SLIDER, NULL, ICON_NONE);
   uiItemR(col, ptr, "width", UI_ITEM_R_SLIDER, NULL, ICON_NONE);
   uiItemR(col, ptr, "narrowness", UI_ITEM_R_SLIDER, NULL, ICON_NONE);
@@ -394,7 +394,7 @@ static void position_panel_draw(const bContext *UNUSED(C), Panel *panel)
   uiItemR(layout, ptr, "start_position_object", 0, IFACE_("Object"), ICON_NONE);
 
   col = uiLayoutColumn(layout, true);
-  uiItemR(col, ptr, "start_position_x", 0, "Start Position X", ICON_NONE);
+  uiItemR(col, ptr, "start_position_x", 0, IFACE_("Start Position X"), ICON_NONE);
   uiItemR(col, ptr, "start_position_y", 0, "Y", ICON_NONE);
 }
 
@@ -408,9 +408,9 @@ static void time_panel_draw(const bContext *UNUSED(C), Panel *panel)
   uiLayoutSetPropSep(layout, true);
 
   col = uiLayoutColumn(layout, false);
-  uiItemR(col, ptr, "time_offset", 0, "Offset", ICON_NONE);
-  uiItemR(col, ptr, "lifetime", 0, "Life", ICON_NONE);
-  uiItemR(col, ptr, "damping_time", 0, "Damping", ICON_NONE);
+  uiItemR(col, ptr, "time_offset", 0, IFACE_("Offset"), ICON_NONE);
+  uiItemR(col, ptr, "lifetime", 0, IFACE_("Life"), ICON_NONE);
+  uiItemR(col, ptr, "damping_time", 0, IFACE_("Damping"), ICON_NONE);
   uiItemR(col, ptr, "speed", UI_ITEM_R_SLIDER, NULL, ICON_NONE);
 }
 
@@ -462,7 +462,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Wave = {
-    /* name */ "Wave",
+    /* name */ N_("Wave"),
     /* structName */ "WaveModifierData",
     /* structSize */ sizeof(WaveModifierData),
     /* srna */ &RNA_WaveModifier,
diff --git a/source/blender/modifiers/intern/MOD_weighted_normal.c b/source/blender/modifiers/intern/MOD_weighted_normal.c
index d436acb8ad5..af992c00097 100644
--- a/source/blender/modifiers/intern/MOD_weighted_normal.c
+++ b/source/blender/modifiers/intern/MOD_weighted_normal.c
@@ -726,7 +726,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_WeightedNormal = {
-    /* name */ "WeightedNormal",
+    /* name */ N_("WeightedNormal"),
     /* structName */ "WeightedNormalModifierData",
     /* structSize */ sizeof(WeightedNormalModifierData),
     /* srna */ &RNA_WeightedNormalModifier,
diff --git a/source/blender/modifiers/intern/MOD_weightvgedit.c b/source/blender/modifiers/intern/MOD_weightvgedit.c
index e1b43157adb..f6e0cd9303d 100644
--- a/source/blender/modifiers/intern/MOD_weightvgedit.c
+++ b/source/blender/modifiers/intern/MOD_weightvgedit.c
@@ -397,7 +397,7 @@ static void blendRead(BlendDataReader *reader, ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_WeightVGEdit = {
-    /* name */ "VertexWeightEdit",
+    /* name */ N_("VertexWeightEdit"),
     /* structName */ "WeightVGEditModifierData",
     /* structSize */ sizeof(WeightVGEditModifierData),
     /* srna */ &RNA_VertexWeightEditModifier,
diff --git a/source/blender/modifiers/intern/MOD_weightvgmix.c b/source/blender/modifiers/intern/MOD_weightvgmix.c
index b827d41e80a..49088d42a5e 100644
--- a/source/blender/modifiers/intern/MOD_weightvgmix.c
+++ b/source/blender/modifiers/intern/MOD_weightvgmix.c
@@ -496,7 +496,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_WeightVGMix = {
-    /* name */ "VertexWeightMix",
+    /* name */ N_("VertexWeightMix"),
     /* structName */ "WeightVGMixModifierData",
     /* structSize */ sizeof(WeightVGMixModifierData),
     /* srna */ &RNA_VertexWeightMixModifier,
diff --git a/source/blender/modifiers/intern/MOD_weightvgproximity.c b/source/blender/modifiers/intern/MOD_weightvgproximity.c
index 1bea5b93c97..d798bf88bbc 100644
--- a/source/blender/modifiers/intern/MOD_weightvgproximity.c
+++ b/source/blender/modifiers/intern/MOD_weightvgproximity.c
@@ -737,7 +737,7 @@ static void blendRead(BlendDataReader *reader, ModifierData *md)
 }
 
 ModifierTypeInfo modifierType_WeightVGProximity = {
-    /* name */ "VertexWeightProximity",
+    /* name */ N_("VertexWeightProximity"),
     /* structName */ "WeightVGProximityModifierData",
     /* structSize */ sizeof(WeightVGProximityModifierData),
     /* srna */ &RNA_VertexWeightProximityModifier,
diff --git a/source/blender/modifiers/intern/MOD_weld.cc b/source/blender/modifiers/intern/MOD_weld.cc
index 93d4b56176c..19b0bf62fea 100644
--- a/source/blender/modifiers/intern/MOD_weld.cc
+++ b/source/blender/modifiers/intern/MOD_weld.cc
@@ -185,7 +185,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Weld = {
-    /* name */ "Weld",
+    /* name */ N_("Weld"),
     /* structName */ "WeldModifierData",
     /* structSize */ sizeof(WeldModifierData),
     /* srna */ &RNA_WeldModifier,
diff --git a/source/blender/modifiers/intern/MOD_wireframe.c b/source/blender/modifiers/intern/MOD_wireframe.c
index b657ea87244..5799da5d156 100644
--- a/source/blender/modifiers/intern/MOD_wireframe.c
+++ b/source/blender/modifiers/intern/MOD_wireframe.c
@@ -165,7 +165,7 @@ static void panelRegister(ARegionType *region_type)
 }
 
 ModifierTypeInfo modifierType_Wireframe = {
-    /* name */ "Wireframe",
+    /* name */ N_("Wireframe"),
     /* structName */ "WireframeModifierData",
     /* structSize */ sizeof(WireframeModifierData),
     /* srna */ &RNA_WireframeModifier,
diff --git a/source/blender/nodes/NOD_composite.h b/source/blender/nodes/NOD_composite.h
index 5d782674f16..58126c5722d 100644
--- a/source/blender/nodes/NOD_composite.h
+++ b/source/blender/nodes/NOD_composite.h
@@ -169,7 +169,7 @@ void ntreeCompositClearTags(struct bNodeTree *ntree);
 struct bNodeSocket *ntreeCompositOutputFileAddSocket(struct bNodeTree *ntree,
                                                      struct bNode *node,
                                                      const char *name,
-                                                     struct ImageFormatData *im_format);
+                                                     const struct ImageFormatData *im_format);
 
 int ntreeCompositOutputFileRemoveActiveSocket(struct bNodeTree *ntree, struct bNode *node);
 void ntreeCompositOutputFileSetPath(struct bNode *node,
diff --git a/source/blender/nodes/NOD_static_types.h b/source/blender/nodes/NOD_static_types.h
index 7c7f114bb78..71d8f014399 100644
--- a/source/blender/nodes/NOD_static_types.h
+++ b/source/blender/nodes/NOD_static_types.h
@@ -64,7 +64,7 @@ DefNode(ShaderNode,     SH_NODE_BSDF_DIFFUSE,       0,                      "BSD
 DefNode(ShaderNode,     SH_NODE_BSDF_PRINCIPLED,    def_principled,         "BSDF_PRINCIPLED",    BsdfPrincipled,   "Principled BSDF",   "Physically-based, easy-to-use shader for rendering surface materials, based on the Disney principled model also known as the \"PBR\" shader")
 DefNode(ShaderNode,     SH_NODE_BSDF_GLOSSY,        def_glossy,             "BSDF_GLOSSY",        BsdfGlossy,       "Glossy BSDF",       "Reflection with microfacet distribution, used for materials such as metal or mirrors")
 DefNode(ShaderNode,     SH_NODE_BSDF_GLASS,         def_glass,              "BSDF_GLASS",         BsdfGlass,        "Glass BSDF",        "Glass-like shader mixing refraction and reflection at grazing angles")
-DefNode(ShaderNode,     SH_NODE_BSDF_REFRACTION,    def_refraction,         "BSDF_REFRACTION",    BsdfRefraction,   "Refraction BSDF",   "Glossy refraction with sharp or microfacet distribution,. Typically used for materials that transmit light")
+DefNode(ShaderNode,     SH_NODE_BSDF_REFRACTION,    def_refraction,         "BSDF_REFRACTION",    BsdfRefraction,   "Refraction BSDF",   "Glossy refraction with sharp or microfacet distribution, typically used for materials that transmit light")
 DefNode(ShaderNode,     SH_NODE_BSDF_TRANSLUCENT,   0,                      "BSDF_TRANSLUCENT",   BsdfTranslucent,  "Translucent BSDF",  "Lambertian diffuse transmission")
 DefNode(ShaderNode,     SH_NODE_BSDF_TRANSPARENT,   0,                      "BSDF_TRANSPARENT",   BsdfTransparent,  "Transparent BSDF",  "Transparency without refraction, passing straight through the surface as if there were no geometry")
 DefNode(ShaderNode,     SH_NODE_BSDF_VELVET,        0,                      "BSDF_VELVET",        BsdfVelvet,       "Velvet BSDF",       "Reflection for materials such as cloth.\nTypically mixed with other shaders (such as a Diffuse Shader) and is not particularly useful on its own")
diff --git a/source/blender/nodes/composite/nodes/node_composite_diff_matte.cc b/source/blender/nodes/composite/nodes/node_composite_diff_matte.cc
index 20dd61a9725..b87bbe439db 100644
--- a/source/blender/nodes/composite/nodes/node_composite_diff_matte.cc
+++ b/source/blender/nodes/composite/nodes/node_composite_diff_matte.cc
@@ -19,7 +19,7 @@ static void cmp_node_diff_matte_declare(NodeDeclarationBuilder &b)
   b.add_input<decl::Color>(N_("Image 1")).default_value({1.0f, 1.0f, 1.0f, 1.0f});
   b.add_input<decl::Color>(N_("Image 2")).default_value({1.0f, 1.0f, 1.0f, 1.0f});
   b.add_output<decl::Color>(N_("Image"));
-  b.add_output<decl::Color>(N_("Matte"));
+  b.add_output<decl::Float>(N_("Matte"));
 }
 
 static void node_composit_init_diff_matte(bNodeTree *UNUSED(ntree), bNode *node)
diff --git a/source/blender/nodes/composite/nodes/node_composite_output_file.cc b/source/blender/nodes/composite/nodes/node_composite_output_file.cc
index f1621f83ac3..84235b085a4 100644
--- a/source/blender/nodes/composite/nodes/node_composite_output_file.cc
+++ b/source/blender/nodes/composite/nodes/node_composite_output_file.cc
@@ -114,7 +114,7 @@ void ntreeCompositOutputFileUniqueLayer(ListBase *list,
 bNodeSocket *ntreeCompositOutputFileAddSocket(bNodeTree *ntree,
                                               bNode *node,
                                               const char *name,
-                                              ImageFormatData *im_format)
+                                              const ImageFormatData *im_format)
 {
   NodeImageMultiFile *nimf = (NodeImageMultiFile *)node->storage;
   bNodeSocket *sock = nodeAddStaticSocket(
diff --git a/source/blender/nodes/composite/nodes/node_composite_val_to_rgb.cc b/source/blender/nodes/composite/nodes/node_composite_val_to_rgb.cc
index 0dfdeda24e6..df669d5beda 100644
--- a/source/blender/nodes/composite/nodes/node_composite_val_to_rgb.cc
+++ b/source/blender/nodes/composite/nodes/node_composite_val_to_rgb.cc
@@ -49,7 +49,7 @@ namespace blender::nodes::node_composite_val_to_rgb_cc {
 static void cmp_node_rgbtobw_declare(NodeDeclarationBuilder &b)
 {
   b.add_input<decl::Color>(N_("Image")).default_value({0.8f, 0.8f, 0.8f, 1.0f});
-  b.add_output<decl::Color>(N_("Val"));
+  b.add_output<decl::Float>(N_("Val"));
 }
 
 }  // namespace blender::nodes::node_composite_val_to_rgb_cc
diff --git a/source/blender/nodes/geometry/nodes/node_geo_attribute_domain_size.cc b/source/blender/nodes/geometry/nodes/node_geo_attribute_domain_size.cc
index 7e4904a7a6a..f6ea6073459 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_attribute_domain_size.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_attribute_domain_size.cc
@@ -65,13 +65,12 @@ static void node_update(bNodeTree *ntree, bNode *node)
 
 static void node_geo_exec(GeoNodeExecParams params)
 {
-  GeometryComponentType component = (GeometryComponentType)params.node().custom1;
-  GeometrySet geometry_set = params.extract_input<GeometrySet>("Geometry");
+  const GeometryComponentType component = (GeometryComponentType)params.node().custom1;
+  const GeometrySet geometry_set = params.extract_input<GeometrySet>("Geometry");
 
   switch (component) {
     case GEO_COMPONENT_TYPE_MESH: {
-      if (geometry_set.has_mesh()) {
-        const MeshComponent *component = geometry_set.get_component_for_read<MeshComponent>();
+      if (const MeshComponent *component = geometry_set.get_component_for_read<MeshComponent>()) {
         const AttributeAccessor attributes = *component->attributes();
         params.set_output("Point Count", attributes.domain_size(ATTR_DOMAIN_POINT));
         params.set_output("Edge Count", attributes.domain_size(ATTR_DOMAIN_EDGE));
@@ -84,8 +83,8 @@ static void node_geo_exec(GeoNodeExecParams params)
       break;
     }
     case GEO_COMPONENT_TYPE_CURVE: {
-      if (geometry_set.has_curves()) {
-        const CurveComponent *component = geometry_set.get_component_for_read<CurveComponent>();
+      if (const CurveComponent *component =
+              geometry_set.get_component_for_read<CurveComponent>()) {
         const AttributeAccessor attributes = *component->attributes();
         params.set_output("Point Count", attributes.domain_size(ATTR_DOMAIN_POINT));
         params.set_output("Spline Count", attributes.domain_size(ATTR_DOMAIN_CURVE));
@@ -96,10 +95,10 @@ static void node_geo_exec(GeoNodeExecParams params)
       break;
     }
     case GEO_COMPONENT_TYPE_POINT_CLOUD: {
-      if (geometry_set.has_pointcloud()) {
-        const PointCloudComponent *component =
-            geometry_set.get_component_for_read<PointCloudComponent>();
-        params.set_output("Point Count", component->attributes()->domain_size(ATTR_DOMAIN_POINT));
+      if (const PointCloudComponent *component =
+              geometry_set.get_component_for_read<PointCloudComponent>()) {
+        const AttributeAccessor attributes = *component->attributes();
+        params.set_output("Point Count", attributes.domain_size(ATTR_DOMAIN_POINT));
       }
       else {
         params.set_default_remaining_outputs();
@@ -107,11 +106,10 @@ static void node_geo_exec(GeoNodeExecParams params)
       break;
     }
     case GEO_COMPONENT_TYPE_INSTANCES: {
-      if (geometry_set.has_instances()) {
-        const InstancesComponent *component =
-            geometry_set.get_component_for_read<InstancesComponent>();
-        params.set_output("Instance Count",
-                          component->attributes()->domain_size(ATTR_DOMAIN_INSTANCE));
+      if (const InstancesComponent *component =
+              geometry_set.get_component_for_read<InstancesComponent>()) {
+        const AttributeAccessor attributes = *component->attributes();
+        params.set_output("Instance Count", attributes.domain_size(ATTR_DOMAIN_INSTANCE));
       }
       else {
         params.set_default_remaining_outputs();
diff --git a/source/blender/nodes/geometry/nodes/node_geo_convex_hull.cc b/source/blender/nodes/geometry/nodes/node_geo_convex_hull.cc
index 489b618b8be..7c26ffc2099 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_convex_hull.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_convex_hull.cc
@@ -140,28 +140,35 @@ static Mesh *compute_hull(const GeometrySet &geometry_set)
 
   Span<float3> positions_span;
 
-  if (geometry_set.has_mesh()) {
+  if (const MeshComponent *component = geometry_set.get_component_for_read<MeshComponent>()) {
     count++;
-    const MeshComponent *component = geometry_set.get_component_for_read<MeshComponent>();
-    const Mesh *mesh = component->get_for_read();
-    total_num += mesh->totvert;
+    if (const VArray<float3> positions = component->attributes()->lookup<float3>(
+            "position", ATTR_DOMAIN_POINT)) {
+      if (positions.is_span()) {
+        span_count++;
+        positions_span = positions.get_internal_span();
+      }
+      total_num += positions.size();
+    }
   }
 
-  if (geometry_set.has_pointcloud()) {
+  if (const PointCloudComponent *component =
+          geometry_set.get_component_for_read<PointCloudComponent>()) {
     count++;
-    span_count++;
-    const PointCloudComponent *component =
-        geometry_set.get_component_for_read<PointCloudComponent>();
-    const PointCloud *pointcloud = component->get_for_read();
-    positions_span = {reinterpret_cast<const float3 *>(pointcloud->co), pointcloud->totpoint};
-    total_num += pointcloud->totpoint;
+    if (const VArray<float3> positions = component->attributes()->lookup<float3>(
+            "position", ATTR_DOMAIN_POINT)) {
+      if (positions.is_span()) {
+        span_count++;
+        positions_span = positions.get_internal_span();
+      }
+      total_num += positions.size();
+    }
   }
 
-  if (geometry_set.has_curves()) {
+  if (const Curves *curves_id = geometry_set.get_curves_for_read()) {
     count++;
     span_count++;
-    const Curves &curves_id = *geometry_set.get_curves_for_read();
-    const bke::CurvesGeometry &curves = bke::CurvesGeometry::wrap(curves_id.geometry);
+    const bke::CurvesGeometry &curves = bke::CurvesGeometry::wrap(curves_id->geometry);
     positions_span = curves.evaluated_positions();
     total_num += positions_span.size();
   }
@@ -179,26 +186,25 @@ static Mesh *compute_hull(const GeometrySet &geometry_set)
   Array<float3> positions(total_num);
   int offset = 0;
 
-  if (geometry_set.has_mesh()) {
-    const MeshComponent *component = geometry_set.get_component_for_read<MeshComponent>();
-    const VArray<float3> varray = component->attributes()->lookup<float3>("position",
-                                                                          ATTR_DOMAIN_POINT);
-    varray.materialize(positions.as_mutable_span().slice(offset, varray.size()));
-    offset += varray.size();
+  if (const MeshComponent *component = geometry_set.get_component_for_read<MeshComponent>()) {
+    if (const VArray<float3> varray = component->attributes()->lookup<float3>("position",
+                                                                              ATTR_DOMAIN_POINT)) {
+      varray.materialize(positions.as_mutable_span().slice(offset, varray.size()));
+      offset += varray.size();
+    }
   }
 
-  if (geometry_set.has_pointcloud()) {
-    const PointCloudComponent *component =
-        geometry_set.get_component_for_read<PointCloudComponent>();
-    const VArray<float3> varray = component->attributes()->lookup<float3>("position",
-                                                                          ATTR_DOMAIN_POINT);
-    varray.materialize(positions.as_mutable_span().slice(offset, varray.size()));
-    offset += varray.size();
+  if (const PointCloudComponent *component =
+          geometry_set.get_component_for_read<PointCloudComponent>()) {
+    if (const VArray<float3> varray = component->attributes()->lookup<float3>("position",
+                                                                              ATTR_DOMAIN_POINT)) {
+      varray.materialize(positions.as_mutable_span().slice(offset, varray.size()));
+      offset += varray.size();
+    }
   }
 
-  if (geometry_set.has_curves()) {
-    const Curves &curves_id = *geometry_set.get_curves_for_read();
-    const bke::CurvesGeometry &curves = bke::CurvesGeometry::wrap(curves_id.geometry);
+  if (const Curves *curves_id = geometry_set.get_curves_for_read()) {
+    const bke::CurvesGeometry &curves = bke::CurvesGeometry::wrap(curves_id->geometry);
     Span<float3> array = curves.evaluated_positions();
     positions.as_mutable_span().slice(offset, array.size()).copy_from(array);
     offset += array.size();
diff --git a/source/blender/nodes/geometry/nodes/node_geo_curve_fillet.cc b/source/blender/nodes/geometry/nodes/node_geo_curve_fillet.cc
index e200350dc18..ab1f8269c39 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_curve_fillet.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_curve_fillet.cc
@@ -1,16 +1,12 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
-#include "BLI_task.hh"
-
 #include "UI_interface.h"
 #include "UI_resources.h"
 
-#include "DNA_node_types.h"
+#include "GEO_fillet_curves.hh"
 
 #include "node_geometry_util.hh"
 
-#include "BKE_spline.hh"
-
 namespace blender::nodes::node_geo_curve_fillet_cc {
 
 NODE_STORAGE_FUNCS(NodeGeometryCurveFillet)
@@ -44,571 +40,18 @@ static void node_layout(uiLayout *layout, bContext *UNUSED(C), PointerRNA *ptr)
 static void node_init(bNodeTree *UNUSED(tree), bNode *node)
 {
   NodeGeometryCurveFillet *data = MEM_cnew<NodeGeometryCurveFillet>(__func__);
-
   data->mode = GEO_NODE_CURVE_FILLET_BEZIER;
   node->storage = data;
 }
 
-struct FilletParam {
-  GeometryNodeCurveFilletMode mode;
-
-  /* Number of points to be added. */
-  VArray<int> counts;
-
-  /* Radii for fillet arc at all vertices. */
-  VArray<float> radii;
-
-  /* Whether or not fillets are allowed to overlap. */
-  bool limit_radius;
-};
-
-/* A data structure used to store fillet data about all vertices to be filleted. */
-struct FilletData {
-  Span<float3> positions;
-  Array<float3> directions, axes;
-  Array<float> radii, angles;
-  Array<int> counts;
-};
-
 static void node_update(bNodeTree *ntree, bNode *node)
 {
   const NodeGeometryCurveFillet &storage = node_storage(*node);
   const GeometryNodeCurveFilletMode mode = (GeometryNodeCurveFilletMode)storage.mode;
-
   bNodeSocket *poly_socket = ((bNodeSocket *)node->inputs.first)->next;
-
   nodeSetSocketAvailability(ntree, poly_socket, mode == GEO_NODE_CURVE_FILLET_POLY);
 }
 
-/* Function to get the center of a fillet. */
-static float3 get_center(const float3 vec_pos2prev,
-                         const float3 pos,
-                         const float3 axis,
-                         const float angle)
-{
-  float3 vec_pos2center;
-  rotate_normalized_v3_v3v3fl(vec_pos2center, vec_pos2prev, axis, M_PI_2 - angle / 2.0f);
-  vec_pos2center *= 1.0f / sinf(angle / 2.0f);
-
-  return vec_pos2center + pos;
-}
-
-/* Function to get the center of the fillet using fillet data */
-static float3 get_center(const float3 vec_pos2prev, const FilletData &fd, const int index)
-{
-  const float angle = fd.angles[index];
-  const float3 axis = fd.axes[index];
-  const float3 pos = fd.positions[index];
-
-  return get_center(vec_pos2prev, pos, axis, angle);
-}
-
-/* Calculate the direction vectors from each vertex to their previous vertex. */
-static Array<float3> calculate_directions(const Span<float3> positions)
-{
-  const int num = positions.size();
-  Array<float3> directions(num);
-
-  for (const int i : IndexRange(num - 1)) {
-    directions[i] = math::normalize(positions[i + 1] - positions[i]);
-  }
-  directions[num - 1] = math::normalize(positions[0] - positions[num - 1]);
-
-  return directions;
-}
-
-/* Calculate the axes around which the fillet is built. */
-static Array<float3> calculate_axes(const Span<float3> directions)
-{
-  const int num = directions.size();
-  Array<float3> axes(num);
-
-  axes[0] = math::normalize(math::cross(-directions[num - 1], directions[0]));
-  for (const int i : IndexRange(1, num - 1)) {
-    axes[i] = math::normalize(math::cross(-directions[i - 1], directions[i]));
-  }
-
-  return axes;
-}
-
-/* Calculate the angle of the arc formed by the fillet. */
-static Array<float> calculate_angles(const Span<float3> directions)
-{
-  const int num = directions.size();
-  Array<float> angles(num);
-
-  angles[0] = M_PI - angle_v3v3(-directions[num - 1], directions[0]);
-  for (const int i : IndexRange(1, num - 1)) {
-    angles[i] = M_PI - angle_v3v3(-directions[i - 1], directions[i]);
-  }
-
-  return angles;
-}
-
-/* Calculate the segment count in each filleted arc. */
-static Array<int> calculate_counts(const FilletParam &fillet_param,
-                                   const int num,
-                                   const int spline_offset,
-                                   const bool cyclic)
-{
-  Array<int> counts(num, 1);
-  if (fillet_param.mode == GEO_NODE_CURVE_FILLET_POLY) {
-    for (const int i : IndexRange(num)) {
-      counts[i] = fillet_param.counts[spline_offset + i];
-    }
-  }
-  if (!cyclic) {
-    counts[0] = counts[num - 1] = 0;
-  }
-
-  return counts;
-}
-
-/* Calculate the radii for the vertices to be filleted. */
-static Array<float> calculate_radii(const FilletParam &fillet_param,
-                                    const int num,
-                                    const int spline_offset)
-{
-  Array<float> radii(num, 0.0f);
-  if (fillet_param.limit_radius) {
-    for (const int i : IndexRange(num)) {
-      radii[i] = std::max(fillet_param.radii[spline_offset + i], 0.0f);
-    }
-  }
-  else {
-    for (const int i : IndexRange(num)) {
-      radii[i] = fillet_param.radii[spline_offset + i];
-    }
-  }
-
-  return radii;
-}
-
-/* Calculate the number of vertices added per vertex on the source spline. */
-static int calculate_point_counts(MutableSpan<int> point_counts,
-                                  const Span<float> radii,
-                                  const Span<int> counts)
-{
-  int added_count = 0;
-  for (const int i : IndexRange(point_counts.size())) {
-    /* Calculate number of points to be added for the vertex. */
-    if (radii[i] != 0.0f) {
-      added_count += counts[i];
-      point_counts[i] = counts[i] + 1;
-    }
-  }
-
-  return added_count;
-}
-
-static FilletData calculate_fillet_data(const Spline &spline,
-                                        const FilletParam &fillet_param,
-                                        int &added_count,
-                                        MutableSpan<int> point_counts,
-                                        const int spline_offset)
-{
-  const int num = spline.size();
-
-  FilletData fd;
-  fd.directions = calculate_directions(spline.positions());
-  fd.positions = spline.positions();
-  fd.axes = calculate_axes(fd.directions);
-  fd.angles = calculate_angles(fd.directions);
-  fd.counts = calculate_counts(fillet_param, num, spline_offset, spline.is_cyclic());
-  fd.radii = calculate_radii(fillet_param, num, spline_offset);
-
-  added_count = calculate_point_counts(point_counts, fd.radii, fd.counts);
-
-  return fd;
-}
-
-/* Limit the radius based on angle and radii to prevent overlapping. */
-static void limit_radii(FilletData &fd, const bool cyclic)
-{
-  MutableSpan<float> radii(fd.radii);
-  Span<float> angles(fd.angles);
-  Span<float3> positions(fd.positions);
-
-  const int num = radii.size();
-  const int fillet_count = cyclic ? num : num - 2;
-  const int start = cyclic ? 0 : 1;
-  Array<float> max_radii(num, FLT_MAX);
-
-  if (cyclic) {
-    /* Calculate lengths between adjacent control points. */
-    const float len_prev = math::distance(positions[0], positions[num - 1]);
-    const float len_next = math::distance(positions[0], positions[1]);
-
-    /* Calculate tangent lengths of fillets in control points. */
-    const float tan_len = radii[0] * tan(angles[0] / 2.0f);
-    const float tan_len_prev = radii[num - 1] * tan(angles[num - 1] / 2.0f);
-    const float tan_len_next = radii[1] * tan(angles[1] / 2.0f);
-
-    float factor_prev = 1.0f, factor_next = 1.0f;
-    if (tan_len + tan_len_prev > len_prev) {
-      factor_prev = len_prev / (tan_len + tan_len_prev);
-    }
-    if (tan_len + tan_len_next > len_next) {
-      factor_next = len_next / (tan_len + tan_len_next);
-    }
-
-    /* Scale max radii by calculated factors. */
-    max_radii[0] = radii[0] * std::min(factor_next, factor_prev);
-    max_radii[1] = radii[1] * factor_next;
-    max_radii[num - 1] = radii[num - 1] * factor_prev;
-  }
-
-  /* Initialize max_radii to largest possible radii. */
-  float prev_dist = math::distance(positions[1], positions[0]);
-  for (const int i : IndexRange(1, num - 2)) {
-    const float temp_dist = math::distance(positions[i], positions[i + 1]);
-    max_radii[i] = std::min(prev_dist, temp_dist) / tan(angles[i] / 2.0f);
-    prev_dist = temp_dist;
-  }
-
-  /* Max radii calculations for each index. */
-  for (const int i : IndexRange(start, fillet_count - 1)) {
-    const float len_next = math::distance(positions[i], positions[i + 1]);
-    const float tan_len = radii[i] * tan(angles[i] / 2.0f);
-    const float tan_len_next = radii[i + 1] * tan(angles[i + 1] / 2.0f);
-
-    /* Scale down radii if too large for segment. */
-    float factor = 1.0f;
-    if (tan_len + tan_len_next > len_next) {
-      factor = len_next / (tan_len + tan_len_next);
-    }
-    max_radii[i] = std::min(max_radii[i], radii[i] * factor);
-    max_radii[i + 1] = std::min(max_radii[i + 1], radii[i + 1] * factor);
-  }
-
-  /* Assign the max_radii to the fillet data's radii. */
-  for (const int i : IndexRange(num)) {
-    radii[i] = std::min(radii[i], max_radii[i]);
-  }
-}
-
-/*
- * Create a mapping from each vertex in the destination spline to that of the source spline.
- * Used for copying the data from the source spline.
- */
-static Array<int> create_dst_to_src_map(const Span<int> point_counts, const int total_points)
-{
-  Array<int> map(total_points);
-  MutableSpan<int> map_span{map};
-  int index = 0;
-
-  for (const int i : point_counts.index_range()) {
-    map_span.slice(index, point_counts[i]).fill(i);
-    index += point_counts[i];
-  }
-
-  BLI_assert(index == total_points);
-
-  return map;
-}
-
-template<typename T>
-static void copy_attribute_by_mapping(const Span<T> src,
-                                      MutableSpan<T> dst,
-                                      const Span<int> mapping)
-{
-  for (const int i : dst.index_range()) {
-    dst[i] = src[mapping[i]];
-  }
-}
-
-/* Copy radii and tilts from source spline to destination. Positions are handled later in update
- * positions methods. */
-static void copy_common_attributes_by_mapping(const Spline &src,
-                                              Spline &dst,
-                                              const Span<int> mapping)
-{
-  copy_attribute_by_mapping(src.radii(), dst.radii(), mapping);
-  copy_attribute_by_mapping(src.tilts(), dst.tilts(), mapping);
-
-  src.attributes.foreach_attribute(
-      [&](const AttributeIDRef &attribute_id, const AttributeMetaData &meta_data) {
-        std::optional<GSpan> src_attribute = src.attributes.get_for_read(attribute_id);
-        if (dst.attributes.create(attribute_id, meta_data.data_type)) {
-          std::optional<GMutableSpan> dst_attribute = dst.attributes.get_for_write(attribute_id);
-          if (dst_attribute) {
-            attribute_math::convert_to_static_type(dst_attribute->type(), [&](auto dummy) {
-              using T = decltype(dummy);
-              copy_attribute_by_mapping(
-                  src_attribute->typed<T>(), dst_attribute->typed<T>(), mapping);
-            });
-            return true;
-          }
-        }
-        BLI_assert_unreachable();
-        return false;
-      },
-      ATTR_DOMAIN_POINT);
-}
-
-/* Update the vertex positions and handle positions of a Bezier spline based on fillet data. */
-static void update_bezier_positions(const FilletData &fd,
-                                    BezierSpline &dst_spline,
-                                    const BezierSpline &src_spline,
-                                    const Span<int> point_counts)
-{
-  Span<float> radii(fd.radii);
-  Span<float> angles(fd.angles);
-  Span<float3> axes(fd.axes);
-  Span<float3> positions(fd.positions);
-  Span<float3> directions(fd.directions);
-
-  const int num = radii.size();
-
-  int i_dst = 0;
-  for (const int i_src : IndexRange(num)) {
-    const int count = point_counts[i_src];
-
-    /* Skip if the point count for the vertex is 1. */
-    if (count == 1) {
-      dst_spline.positions()[i_dst] = src_spline.positions()[i_src];
-      dst_spline.handle_types_left()[i_dst] = src_spline.handle_types_left()[i_src];
-      dst_spline.handle_types_right()[i_dst] = src_spline.handle_types_right()[i_src];
-      dst_spline.handle_positions_left()[i_dst] = src_spline.handle_positions_left()[i_src];
-      dst_spline.handle_positions_right()[i_dst] = src_spline.handle_positions_right()[i_src];
-      i_dst++;
-      continue;
-    }
-
-    /* Calculate the angle to be formed between any 2 adjacent vertices within the fillet. */
-    const float segment_angle = angles[i_src] / (count - 1);
-    /* Calculate the handle length for each added vertex. Equation: L = 4R/3 * tan(A/4) */
-    const float handle_length = 4.0f * radii[i_src] / 3.0f * tan(segment_angle / 4.0f);
-    /* Calculate the distance by which each vertex should be displaced from their initial position.
-     */
-    const float displacement = radii[i_src] * tan(angles[i_src] / 2.0f);
-
-    /* Position the end points of the arc and their handles. */
-    const int end_i = i_dst + count - 1;
-    const float3 prev_dir = i_src == 0 ? -directions[num - 1] : -directions[i_src - 1];
-    const float3 next_dir = directions[i_src];
-    dst_spline.positions()[i_dst] = positions[i_src] + displacement * prev_dir;
-    dst_spline.positions()[end_i] = positions[i_src] + displacement * next_dir;
-    dst_spline.handle_positions_right()[i_dst] = dst_spline.positions()[i_dst] -
-                                                 handle_length * prev_dir;
-    dst_spline.handle_positions_left()[end_i] = dst_spline.positions()[end_i] -
-                                                handle_length * next_dir;
-    dst_spline.handle_types_right()[i_dst] = dst_spline.handle_types_left()[end_i] =
-        BEZIER_HANDLE_ALIGN;
-    dst_spline.handle_types_left()[i_dst] = dst_spline.handle_types_right()[end_i] =
-        BEZIER_HANDLE_VECTOR;
-    dst_spline.mark_cache_invalid();
-
-    /* Calculate the center of the radius to be formed. */
-    const float3 center = get_center(dst_spline.positions()[i_dst] - positions[i_src], fd, i_src);
-    /* Calculate the vector of the radius formed by the first vertex. */
-    float3 radius_vec = dst_spline.positions()[i_dst] - center;
-    float radius;
-    radius_vec = math::normalize_and_get_length(radius_vec, radius);
-
-    dst_spline.handle_types_right().slice(1, count - 2).fill(BEZIER_HANDLE_ALIGN);
-    dst_spline.handle_types_left().slice(1, count - 2).fill(BEZIER_HANDLE_ALIGN);
-
-    /* For each of the vertices in between the end points. */
-    for (const int j : IndexRange(1, count - 2)) {
-      int index = i_dst + j;
-      /* Rotate the radius by the segment angle and determine its tangent (used for getting handle
-       * directions). */
-      float3 new_radius_vec, tangent_vec;
-      rotate_normalized_v3_v3v3fl(new_radius_vec, radius_vec, -axes[i_src], segment_angle);
-      rotate_normalized_v3_v3v3fl(tangent_vec, new_radius_vec, axes[i_src], M_PI_2);
-      radius_vec = new_radius_vec;
-      tangent_vec *= handle_length;
-
-      /* Adjust the positions of the respective vertex and its handles. */
-      dst_spline.positions()[index] = center + new_radius_vec * radius;
-      dst_spline.handle_positions_left()[index] = dst_spline.positions()[index] + tangent_vec;
-      dst_spline.handle_positions_right()[index] = dst_spline.positions()[index] - tangent_vec;
-    }
-
-    i_dst += count;
-  }
-}
-
-/* Update the vertex positions of a Poly spline based on fillet data. */
-static void update_poly_positions(const FilletData &fd,
-                                  Spline &dst_spline,
-                                  const Spline &src_spline,
-                                  const Span<int> point_counts)
-{
-  Span<float> radii(fd.radii);
-  Span<float> angles(fd.angles);
-  Span<float3> axes(fd.axes);
-  Span<float3> positions(fd.positions);
-  Span<float3> directions(fd.directions);
-
-  const int num = radii.size();
-
-  int i_dst = 0;
-  for (const int i_src : IndexRange(num)) {
-    const int count = point_counts[i_src];
-
-    /* Skip if the point count for the vertex is 1. */
-    if (count == 1) {
-      dst_spline.positions()[i_dst] = src_spline.positions()[i_src];
-      i_dst++;
-      continue;
-    }
-
-    const float segment_angle = angles[i_src] / (count - 1);
-    const float displacement = radii[i_src] * tan(angles[i_src] / 2.0f);
-
-    /* Position the end points of the arc. */
-    const int end_i = i_dst + count - 1;
-    const float3 prev_dir = i_src == 0 ? -directions[num - 1] : -directions[i_src - 1];
-    const float3 next_dir = directions[i_src];
-    dst_spline.positions()[i_dst] = positions[i_src] + displacement * prev_dir;
-    dst_spline.positions()[end_i] = positions[i_src] + displacement * next_dir;
-
-    /* Calculate the center of the radius to be formed. */
-    const float3 center = get_center(dst_spline.positions()[i_dst] - positions[i_src], fd, i_src);
-    /* Calculate the vector of the radius formed by the first vertex. */
-    float3 radius_vec = dst_spline.positions()[i_dst] - center;
-
-    for (const int j : IndexRange(1, count - 2)) {
-      /* Rotate the radius by the segment angle */
-      float3 new_radius_vec;
-      rotate_normalized_v3_v3v3fl(new_radius_vec, radius_vec, -axes[i_src], segment_angle);
-      radius_vec = new_radius_vec;
-
-      dst_spline.positions()[i_dst + j] = center + new_radius_vec;
-    }
-
-    i_dst += count;
-  }
-}
-
-static SplinePtr fillet_spline(const Spline &spline,
-                               const FilletParam &fillet_param,
-                               const int spline_offset)
-{
-  const int num = spline.size();
-  const bool cyclic = spline.is_cyclic();
-
-  if (num < 3) {
-    return spline.copy();
-  }
-
-  /* Initialize the point_counts with 1s (at least one vertex on dst for each vertex on src). */
-  Array<int> point_counts(num, 1);
-
-  int added_count = 0;
-  /* Update point_counts array and added_count. */
-  FilletData fd = calculate_fillet_data(
-      spline, fillet_param, added_count, point_counts, spline_offset);
-  if (fillet_param.limit_radius) {
-    limit_radii(fd, cyclic);
-  }
-
-  const int total_points = added_count + num;
-  const Array<int> dst_to_src = create_dst_to_src_map(point_counts, total_points);
-  SplinePtr dst_spline_ptr = spline.copy_only_settings();
-  (*dst_spline_ptr).resize(total_points);
-  copy_common_attributes_by_mapping(spline, *dst_spline_ptr, dst_to_src);
-
-  switch (spline.type()) {
-    case CURVE_TYPE_BEZIER: {
-      const BezierSpline &src_spline = static_cast<const BezierSpline &>(spline);
-      BezierSpline &dst_spline = static_cast<BezierSpline &>(*dst_spline_ptr);
-      if (fillet_param.mode == GEO_NODE_CURVE_FILLET_POLY) {
-        dst_spline.handle_types_left().fill(BEZIER_HANDLE_VECTOR);
-        dst_spline.handle_types_right().fill(BEZIER_HANDLE_VECTOR);
-        update_poly_positions(fd, dst_spline, src_spline, point_counts);
-      }
-      else {
-        update_bezier_positions(fd, dst_spline, src_spline, point_counts);
-      }
-      break;
-    }
-    case CURVE_TYPE_POLY: {
-      update_poly_positions(fd, *dst_spline_ptr, spline, point_counts);
-      break;
-    }
-    case CURVE_TYPE_NURBS: {
-      const NURBSpline &src_spline = static_cast<const NURBSpline &>(spline);
-      NURBSpline &dst_spline = static_cast<NURBSpline &>(*dst_spline_ptr);
-      copy_attribute_by_mapping(src_spline.weights(), dst_spline.weights(), dst_to_src);
-      update_poly_positions(fd, dst_spline, src_spline, point_counts);
-      break;
-    }
-    case CURVE_TYPE_CATMULL_ROM: {
-      BLI_assert_unreachable();
-      break;
-    }
-  }
-
-  return dst_spline_ptr;
-}
-
-static std::unique_ptr<CurveEval> fillet_curve(const CurveEval &input_curve,
-                                               const FilletParam &fillet_param)
-{
-  Span<SplinePtr> input_splines = input_curve.splines();
-
-  std::unique_ptr<CurveEval> output_curve = std::make_unique<CurveEval>();
-  const int splines_num = input_splines.size();
-  output_curve->resize(splines_num);
-  MutableSpan<SplinePtr> output_splines = output_curve->splines();
-  Array<int> spline_offsets = input_curve.control_point_offsets();
-
-  threading::parallel_for(input_splines.index_range(), 128, [&](IndexRange range) {
-    for (const int i : range) {
-      output_splines[i] = fillet_spline(*input_splines[i], fillet_param, spline_offsets[i]);
-    }
-  });
-  output_curve->attributes = input_curve.attributes;
-
-  return output_curve;
-}
-
-static void calculate_curve_fillet(GeometrySet &geometry_set,
-                                   const GeometryNodeCurveFilletMode mode,
-                                   const Field<float> &radius_field,
-                                   const std::optional<Field<int>> &count_field,
-                                   const bool limit_radius)
-{
-  if (!geometry_set.has_curves()) {
-    return;
-  }
-
-  FilletParam fillet_param;
-  fillet_param.mode = mode;
-
-  CurveComponent &component = geometry_set.get_component_for_write<CurveComponent>();
-  GeometryComponentFieldContext field_context{component, ATTR_DOMAIN_POINT};
-  const int domain_size = component.attribute_domain_size(ATTR_DOMAIN_POINT);
-  fn::FieldEvaluator field_evaluator{field_context, domain_size};
-
-  field_evaluator.add(radius_field);
-
-  if (mode == GEO_NODE_CURVE_FILLET_POLY) {
-    field_evaluator.add(*count_field);
-  }
-
-  field_evaluator.evaluate();
-
-  fillet_param.radii = field_evaluator.get_evaluated<float>(0);
-  if (fillet_param.radii.is_single() && fillet_param.radii.get_internal_single() < 0.0f) {
-    return;
-  }
-
-  if (mode == GEO_NODE_CURVE_FILLET_POLY) {
-    fillet_param.counts = field_evaluator.get_evaluated<int>(1);
-  }
-
-  fillet_param.limit_radius = limit_radius;
-
-  const std::unique_ptr<CurveEval> input_curve = curves_to_curve_eval(*component.get_for_read());
-  std::unique_ptr<CurveEval> output_curve = fillet_curve(*input_curve, fillet_param);
-
-  geometry_set.replace_curves(curve_eval_to_curves(*output_curve));
-}
-
 static void node_geo_exec(GeoNodeExecParams params)
 {
   GeometrySet geometry_set = params.extract_input<GeometrySet>("Curve");
@@ -625,7 +68,42 @@ static void node_geo_exec(GeoNodeExecParams params)
   }
 
   geometry_set.modify_geometry_sets([&](GeometrySet &geometry_set) {
-    calculate_curve_fillet(geometry_set, mode, radius_field, count_field, limit_radius);
+    if (!geometry_set.has_curves()) {
+      return;
+    }
+
+    const CurveComponent &component = *geometry_set.get_component_for_read<CurveComponent>();
+    const Curves &curves_id = *component.get_for_read();
+    const bke::CurvesGeometry &curves = bke::CurvesGeometry::wrap(curves_id.geometry);
+    GeometryComponentFieldContext context{component, ATTR_DOMAIN_POINT};
+    fn::FieldEvaluator evaluator{context, curves.points_num()};
+    evaluator.add(radius_field);
+
+    switch (mode) {
+      case GEO_NODE_CURVE_FILLET_BEZIER: {
+        evaluator.evaluate();
+        bke::CurvesGeometry dst_curves = geometry::fillet_curves_bezier(
+            curves, curves.curves_range(), evaluator.get_evaluated<float>(0), limit_radius);
+        Curves *dst_curves_id = bke::curves_new_nomain(std::move(dst_curves));
+        bke::curves_copy_parameters(curves_id, *dst_curves_id);
+        geometry_set.replace_curves(dst_curves_id);
+        break;
+      }
+      case GEO_NODE_CURVE_FILLET_POLY: {
+        evaluator.add(*count_field);
+        evaluator.evaluate();
+        bke::CurvesGeometry dst_curves = geometry::fillet_curves_poly(
+            curves,
+            curves.curves_range(),
+            evaluator.get_evaluated<float>(0),
+            evaluator.get_evaluated<int>(1),
+            limit_radius);
+        Curves *dst_curves_id = bke::curves_new_nomain(std::move(dst_curves));
+        bke::curves_copy_parameters(curves_id, *dst_curves_id);
+        geometry_set.replace_curves(dst_curves_id);
+        break;
+      }
+    }
   });
 
   params.set_output("Curve", std::move(geometry_set));
diff --git a/source/blender/nodes/geometry/nodes/node_geo_curve_resample.cc b/source/blender/nodes/geometry/nodes/node_geo_curve_resample.cc
index 78a132064ed..2815dd5b2e8 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_curve_resample.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_curve_resample.cc
@@ -65,8 +65,10 @@ static void node_geo_exec(GeoNodeExecParams params)
       Field<int> count = params.extract_input<Field<int>>("Count");
       geometry_set.modify_geometry_sets([&](GeometrySet &geometry) {
         if (const CurveComponent *component = geometry.get_component_for_read<CurveComponent>()) {
-          if (!component->is_empty()) {
-            geometry.replace_curves(geometry::resample_to_count(*component, selection, count));
+          if (const Curves *src_curves = component->get_for_read()) {
+            Curves *dst_curves = geometry::resample_to_count(*component, selection, count);
+            bke::curves_copy_parameters(*src_curves, *dst_curves);
+            geometry.replace_curves(dst_curves);
           }
         }
       });
@@ -76,8 +78,10 @@ static void node_geo_exec(GeoNodeExecParams params)
       Field<float> length = params.extract_input<Field<float>>("Length");
       geometry_set.modify_geometry_sets([&](GeometrySet &geometry) {
         if (const CurveComponent *component = geometry.get_component_for_read<CurveComponent>()) {
-          if (!component->is_empty()) {
-            geometry.replace_curves(geometry::resample_to_length(*component, selection, length));
+          if (const Curves *src_curves = component->get_for_read()) {
+            Curves *dst_curves = geometry::resample_to_length(*component, selection, length);
+            bke::curves_copy_parameters(*src_curves, *dst_curves);
+            geometry.replace_curves(dst_curves);
           }
         }
       });
@@ -86,8 +90,10 @@ static void node_geo_exec(GeoNodeExecParams params)
     case GEO_NODE_CURVE_RESAMPLE_EVALUATED:
       geometry_set.modify_geometry_sets([&](GeometrySet &geometry) {
         if (const CurveComponent *component = geometry.get_component_for_read<CurveComponent>()) {
-          if (!component->is_empty()) {
-            geometry.replace_curves(geometry::resample_to_evaluated(*component, selection));
+          if (const Curves *src_curves = component->get_for_read()) {
+            Curves *dst_curves = geometry::resample_to_evaluated(*component, selection);
+            bke::curves_copy_parameters(*src_curves, *dst_curves);
+            geometry.replace_curves(dst_curves);
           }
         }
       });
diff --git a/source/blender/nodes/geometry/nodes/node_geo_curve_spline_type.cc b/source/blender/nodes/geometry/nodes/node_geo_curve_spline_type.cc
index 183c98e9c9f..a92479bc5f1 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_curve_spline_type.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_curve_spline_type.cc
@@ -61,15 +61,18 @@ static void node_geo_exec(GeoNodeExecParams params)
       return;
     }
 
-    if (geometry::try_curves_conversion_in_place(selection, dst_type, [&]() -> Curves & {
-          return *geometry_set.get_curves_for_write();
-        })) {
+    if (geometry::try_curves_conversion_in_place(
+            selection, dst_type, [&]() -> bke::CurvesGeometry & {
+              return bke::CurvesGeometry::wrap(geometry_set.get_curves_for_write()->geometry);
+            })) {
       return;
     }
 
-    Curves *dst_curves = geometry::convert_curves(src_component, src_curves, selection, dst_type);
+    bke::CurvesGeometry dst_curves = geometry::convert_curves(src_curves, selection, dst_type);
 
-    geometry_set.replace_curves(dst_curves);
+    Curves *dst_curves_id = bke::curves_new_nomain(std::move(dst_curves));
+    bke::curves_copy_parameters(src_curves_id, *dst_curves_id);
+    geometry_set.replace_curves(dst_curves_id);
   });
 
   params.set_output("Curve", std::move(geometry_set));
diff --git a/source/blender/nodes/geometry/nodes/node_geo_curve_subdivide.cc b/source/blender/nodes/geometry/nodes/node_geo_curve_subdivide.cc
index 864e6289135..bd44adb35a2 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_curve_subdivide.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_curve_subdivide.cc
@@ -35,11 +35,11 @@ static void node_geo_exec(GeoNodeExecParams params)
     }
 
     const CurveComponent &component = *geometry_set.get_component_for_read<CurveComponent>();
-    const bke::CurvesGeometry &curves = bke::CurvesGeometry::wrap(
-        component.get_for_read()->geometry);
+    const Curves &src_curves_id = *component.get_for_read();
+    const bke::CurvesGeometry &src_curves = bke::CurvesGeometry::wrap(src_curves_id.geometry);
 
     GeometryComponentFieldContext field_context{component, ATTR_DOMAIN_POINT};
-    fn::FieldEvaluator evaluator{field_context, curves.points_num()};
+    fn::FieldEvaluator evaluator{field_context, src_curves.points_num()};
     evaluator.add(cuts_field);
     evaluator.evaluate();
     const VArray<int> cuts = evaluator.get_evaluated<int>(0);
@@ -47,9 +47,12 @@ static void node_geo_exec(GeoNodeExecParams params)
       return;
     }
 
-    Curves *result = geometry::subdivide_curves(component, curves, curves.curves_range(), cuts);
+    bke::CurvesGeometry dst_curves = geometry::subdivide_curves(
+        src_curves, src_curves.curves_range(), cuts);
 
-    geometry_set.replace_curves(result);
+    Curves *dst_curves_id = bke::curves_new_nomain(std::move(dst_curves));
+    bke::curves_copy_parameters(src_curves_id, *dst_curves_id);
+    geometry_set.replace_curves(dst_curves_id);
   });
   params.set_output("Curve", geometry_set);
 }
diff --git a/source/blender/nodes/geometry/nodes/node_geo_curve_trim.cc b/source/blender/nodes/geometry/nodes/node_geo_curve_trim.cc
index 00a79168087..51994cb8a41 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_curve_trim.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_curve_trim.cc
@@ -1,5 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-or-later */
 
+#include "BKE_curves.hh"
 #include "BKE_spline.hh"
 #include "BLI_task.hh"
 
@@ -515,7 +516,8 @@ static void geometry_set_curve_trim(GeometrySet &geometry_set,
   const VArray<float> starts = evaluator.get_evaluated<float>(0);
   const VArray<float> ends = evaluator.get_evaluated<float>(1);
 
-  std::unique_ptr<CurveEval> curve = curves_to_curve_eval(*geometry_set.get_curves_for_read());
+  const Curves &src_curves_id = *geometry_set.get_curves_for_read();
+  std::unique_ptr<CurveEval> curve = curves_to_curve_eval(src_curves_id);
   MutableSpan<SplinePtr> splines = curve->splines();
 
   threading::parallel_for(splines.index_range(), 128, [&](IndexRange range) {
@@ -566,7 +568,9 @@ static void geometry_set_curve_trim(GeometrySet &geometry_set,
     }
   });
 
-  geometry_set.replace_curves(curve_eval_to_curves(*curve));
+  Curves *dst_curves_id = curve_eval_to_curves(*curve);
+  bke::curves_copy_parameters(src_curves_id, *dst_curves_id);
+  geometry_set.replace_curves(dst_curves_id);
 }
 
 static void node_geo_exec(GeoNodeExecParams params)
diff --git a/source/blender/nodes/geometry/nodes/node_geo_deform_curves_on_surface.cc b/source/blender/nodes/geometry/nodes/node_geo_deform_curves_on_surface.cc
index ab7ddfa71f1..7f03d025db7 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_deform_curves_on_surface.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_deform_curves_on_surface.cc
@@ -136,7 +136,7 @@ static void deform_curves(CurvesGeometry &curves,
        *
        * TODO: Figure out if this can be smoothly interpolated across the surface as well.
        * Currently, this is a source of discontinuity in the deformation, because the vector
-       * changes intantly from one triangle to the next. */
+       * changes instantly from one triangle to the next. */
       const float3 tangent_reference_dir_old = rest_pos_1 - rest_pos_0;
       const float3 tangent_reference_dir_new = pos_1_new - pos_0_new;
 
@@ -218,6 +218,12 @@ static void node_geo_exec(GeoNodeExecParams params)
     return;
   }
   const Curves *self_curves_eval = static_cast<const Curves *>(self_ob_eval->data);
+  if (self_curves_eval->surface_uv_map == nullptr || self_curves_eval->surface_uv_map[0] == '\0') {
+    pass_through_input();
+    const char *message = TIP_("Surface UV map not defined");
+    params.error_message_add(NodeWarningType::Error, message);
+    return;
+  }
   /* Take surface information from self-object. */
   Object *surface_ob_eval = self_curves_eval->surface;
   const StringRefNull uv_map_name = self_curves_eval->surface_uv_map;
@@ -229,7 +235,7 @@ static void node_geo_exec(GeoNodeExecParams params)
   }
   if (surface_ob_eval == nullptr || surface_ob_eval->type != OB_MESH) {
     pass_through_input();
-    params.error_message_add(NodeWarningType::Error, "Curves not attached to a surface.");
+    params.error_message_add(NodeWarningType::Error, "Curves not attached to a surface");
     return;
   }
   Object *surface_ob_orig = DEG_get_original_object(surface_ob_eval);
@@ -246,7 +252,7 @@ static void node_geo_exec(GeoNodeExecParams params)
                                                                                   false);
   if (surface_mesh_eval == nullptr) {
     pass_through_input();
-    params.error_message_add(NodeWarningType::Error, "Surface has no mesh.");
+    params.error_message_add(NodeWarningType::Error, "Surface has no mesh");
     return;
   }
 
@@ -258,15 +264,9 @@ static void node_geo_exec(GeoNodeExecParams params)
   Curves &curves_id = *curves_geometry.get_curves_for_write();
   CurvesGeometry &curves = CurvesGeometry::wrap(curves_id.geometry);
 
-  if (uv_map_name.is_empty()) {
-    pass_through_input();
-    const char *message = TIP_("Surface UV map not defined.");
-    params.error_message_add(NodeWarningType::Error, message);
-    return;
-  }
   if (!mesh_attributes_eval.contains(uv_map_name)) {
     pass_through_input();
-    char *message = BLI_sprintfN(TIP_("Evaluated surface missing UV map: %s."),
+    char *message = BLI_sprintfN(TIP_("Evaluated surface missing UV map: %s"),
                                  uv_map_name.c_str());
     params.error_message_add(NodeWarningType::Error, message);
     MEM_freeN(message);
@@ -274,8 +274,7 @@ static void node_geo_exec(GeoNodeExecParams params)
   }
   if (!mesh_attributes_orig.contains(uv_map_name)) {
     pass_through_input();
-    char *message = BLI_sprintfN(TIP_("Original surface missing UV map: %s."),
-                                 uv_map_name.c_str());
+    char *message = BLI_sprintfN(TIP_("Original surface missing UV map: %s"), uv_map_name.c_str());
     params.error_message_add(NodeWarningType::Error, message);
     MEM_freeN(message);
     return;
@@ -283,13 +282,13 @@ static void node_geo_exec(GeoNodeExecParams params)
   if (!mesh_attributes_eval.contains(rest_position_name)) {
     pass_through_input();
     params.error_message_add(NodeWarningType::Error,
-                             TIP_("Evaluated surface missing attribute: rest_position."));
+                             TIP_("Evaluated surface missing attribute: rest_position"));
     return;
   }
-  if (curves.surface_uv_coords().is_empty()) {
+  if (curves.surface_uv_coords().is_empty() && curves.curves_num() > 0) {
     pass_through_input();
     params.error_message_add(NodeWarningType::Error,
-                             TIP_("Curves are not attached to any UV map."));
+                             TIP_("Curves are not attached to any UV map"));
     return;
   }
   const VArraySpan<float2> uv_map_orig = mesh_attributes_orig.lookup<float2>(uv_map_name,
@@ -337,7 +336,7 @@ static void node_geo_exec(GeoNodeExecParams params)
   curves.tag_positions_changed();
 
   if (invalid_uv_count) {
-    char *message = BLI_sprintfN(TIP_("Invalid surface UVs on %d curves."),
+    char *message = BLI_sprintfN(TIP_("Invalid surface UVs on %d curves"),
                                  invalid_uv_count.load());
     params.error_message_add(NodeWarningType::Warning, message);
     MEM_freeN(message);
diff --git a/source/blender/nodes/geometry/nodes/node_geo_distribute_points_on_faces.cc b/source/blender/nodes/geometry/nodes/node_geo_distribute_points_on_faces.cc
index faf5b7f65fa..44793926bbd 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_distribute_points_on_faces.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_distribute_points_on_faces.cc
@@ -497,8 +497,17 @@ static void point_distribution_calculate(GeometrySet &geometry_set,
   }
 
   PointCloud *pointcloud = BKE_pointcloud_new_nomain(positions.size());
-  memcpy(pointcloud->co, positions.data(), sizeof(float3) * positions.size());
-  uninitialized_fill_n(pointcloud->radius, pointcloud->totpoint, 0.05f);
+  bke::MutableAttributeAccessor point_attributes = bke::pointcloud_attributes_for_write(
+      *pointcloud);
+  bke::SpanAttributeWriter<float3> point_positions =
+      point_attributes.lookup_or_add_for_write_only_span<float3>("position", ATTR_DOMAIN_POINT);
+  bke::SpanAttributeWriter<float> point_radii =
+      point_attributes.lookup_or_add_for_write_only_span<float>("radius", ATTR_DOMAIN_POINT);
+  point_positions.span.copy_from(positions);
+  point_radii.span.fill(0.05f);
+  point_positions.finish();
+  point_radii.finish();
+
   geometry_set.replace_pointcloud(pointcloud);
 
   PointCloudComponent &point_component =
diff --git a/source/blender/nodes/geometry/nodes/node_geo_duplicate_elements.cc b/source/blender/nodes/geometry/nodes/node_geo_duplicate_elements.cc
index 41136060ab7..8160bc8d589 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_duplicate_elements.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_duplicate_elements.cc
@@ -369,6 +369,7 @@ static void duplicate_curves(GeometrySet &geometry_set,
   point_offsets.last() = dst_points_num;
 
   Curves *new_curves_id = bke::curves_new_nomain(dst_points_num, dst_curves_num);
+  bke::curves_copy_parameters(curves_id, *new_curves_id);
   bke::CurvesGeometry &new_curves = bke::CurvesGeometry::wrap(new_curves_id->geometry);
   MutableSpan<int> all_dst_offsets = new_curves.offsets_for_write();
 
@@ -830,6 +831,7 @@ static void duplicate_points_curve(GeometrySet &geometry_set,
   });
 
   Curves *new_curves_id = bke::curves_new_nomain(dst_num, dst_num);
+  bke::curves_copy_parameters(src_curves_id, *new_curves_id);
   bke::CurvesGeometry &new_curves = bke::CurvesGeometry::wrap(new_curves_id->geometry);
   MutableSpan<int> new_curve_offsets = new_curves.offsets_for_write();
   for (const int i : new_curves.curves_range()) {
diff --git a/source/blender/nodes/geometry/nodes/node_geo_field_on_domain.cc b/source/blender/nodes/geometry/nodes/node_geo_field_on_domain.cc
index 5939ed5334d..59e243db4a2 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_field_on_domain.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_field_on_domain.cc
@@ -85,12 +85,13 @@ class FieldOnDomain final : public GeometryFieldInput {
                                  IndexMask /* mask */) const final
   {
     const GeometryComponentFieldContext context{component, src_domain_};
-    FieldEvaluator value_evaluator{context, component.attribute_domain_size(src_domain_)};
-    value_evaluator.add(src_field_);
+    const int64_t src_domain_size = component.attribute_domain_size(src_domain_);
+    GArray values(src_field_.cpp_type(), src_domain_size);
+    FieldEvaluator value_evaluator{context, src_domain_size};
+    value_evaluator.add_with_destination(src_field_, values.as_mutable_span());
     value_evaluator.evaluate();
-    const GVArray &values = value_evaluator.get_evaluated(0);
-
-    return component.attributes()->adapt_domain(values, src_domain_, domain);
+    return component.attributes()->adapt_domain(
+        GVArray::ForGArray(std::move(values)), src_domain_, domain);
   }
 };
 
diff --git a/source/blender/nodes/geometry/nodes/node_geo_instances_to_points.cc b/source/blender/nodes/geometry/nodes/node_geo_instances_to_points.cc
index edbe6e1593f..f14329c96da 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_instances_to_points.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_instances_to_points.cc
@@ -22,16 +22,6 @@ static void node_declare(NodeDeclarationBuilder &b)
   b.add_output<decl::Geometry>(N_("Points"));
 }
 
-template<typename T>
-static void copy_attribute_to_points(const VArray<T> &src,
-                                     const IndexMask mask,
-                                     MutableSpan<T> dst)
-{
-  for (const int i : mask.index_range()) {
-    dst[i] = src[mask[i]];
-  }
-}
-
 static void convert_instances_to_points(GeometrySet &geometry_set,
                                         Field<float3> position_field,
                                         Field<float> radius_field,
@@ -51,16 +41,24 @@ static void convert_instances_to_points(GeometrySet &geometry_set,
   if (selection.is_empty()) {
     return;
   }
+  const VArray<float3> &positions = evaluator.get_evaluated<float3>(0);
+  const VArray<float> radii = evaluator.get_evaluated<float>(1);
 
   PointCloud *pointcloud = BKE_pointcloud_new_nomain(selection.size());
   geometry_set.replace_pointcloud(pointcloud);
 
-  PointCloudComponent &points = geometry_set.get_component_for_write<PointCloudComponent>();
+  bke::MutableAttributeAccessor point_attributes = bke::pointcloud_attributes_for_write(
+      *pointcloud);
 
-  const VArray<float3> &positions = evaluator.get_evaluated<float3>(0);
-  copy_attribute_to_points(positions, selection, {(float3 *)pointcloud->co, pointcloud->totpoint});
-  const VArray<float> radii = evaluator.get_evaluated<float>(1);
-  copy_attribute_to_points(radii, selection, {pointcloud->radius, pointcloud->totpoint});
+  bke::SpanAttributeWriter<float3> point_positions =
+      point_attributes.lookup_or_add_for_write_only_span<float3>("position", ATTR_DOMAIN_POINT);
+  bke::SpanAttributeWriter<float> point_radii =
+      point_attributes.lookup_or_add_for_write_only_span<float>("radius", ATTR_DOMAIN_POINT);
+
+  positions.materialize_compressed_to_uninitialized(selection, point_positions.span);
+  radii.materialize_compressed_to_uninitialized(selection, point_radii.span);
+  point_positions.finish();
+  point_radii.finish();
 
   Map<AttributeIDRef, AttributeKind> attributes_to_propagate;
   geometry_set.gather_attributes_for_propagation({GEO_COMPONENT_TYPE_INSTANCES},
@@ -78,14 +76,11 @@ static void convert_instances_to_points(GeometrySet &geometry_set,
     const GVArray src = instances.attributes()->lookup_or_default(
         attribute_id, ATTR_DOMAIN_INSTANCE, attribute_kind.data_type);
     BLI_assert(src);
-    GSpanAttributeWriter dst = points.attributes_for_write()->lookup_or_add_for_write_only_span(
+    GSpanAttributeWriter dst = point_attributes.lookup_or_add_for_write_only_span(
         attribute_id, ATTR_DOMAIN_POINT, attribute_kind.data_type);
     BLI_assert(dst);
 
-    attribute_math::convert_to_static_type(attribute_kind.data_type, [&](auto dummy) {
-      using T = decltype(dummy);
-      copy_attribute_to_points(src.typed<T>(), selection, dst.span.typed<T>());
-    });
+    src.materialize_compressed_to_uninitialized(selection, dst.span.data());
     dst.finish();
   }
 }
diff --git a/source/blender/nodes/geometry/nodes/node_geo_mesh_to_curve.cc b/source/blender/nodes/geometry/nodes/node_geo_mesh_to_curve.cc
index f6ee3d00dee..4a79ec159f4 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_mesh_to_curve.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_mesh_to_curve.cc
@@ -18,7 +18,8 @@ static void node_geo_exec(GeoNodeExecParams params)
   GeometrySet geometry_set = params.extract_input<GeometrySet>("Mesh");
 
   geometry_set.modify_geometry_sets([&](GeometrySet &geometry_set) {
-    if (!geometry_set.has_mesh()) {
+    const Mesh *mesh = geometry_set.get_mesh_for_read();
+    if (mesh == nullptr) {
       geometry_set.keep_only({GEO_COMPONENT_TYPE_INSTANCES});
       return;
     }
@@ -34,7 +35,8 @@ static void node_geo_exec(GeoNodeExecParams params)
       return;
     }
 
-    geometry_set.replace_curves(geometry::mesh_to_curve_convert(component, selection));
+    bke::CurvesGeometry curves = geometry::mesh_to_curve_convert(*mesh, selection);
+    geometry_set.replace_curves(bke::curves_new_nomain(std::move(curves)));
     geometry_set.keep_only({GEO_COMPONENT_TYPE_CURVE, GEO_COMPONENT_TYPE_INSTANCES});
   });
 
diff --git a/source/blender/nodes/geometry/nodes/node_geo_points_to_vertices.cc b/source/blender/nodes/geometry/nodes/node_geo_points_to_vertices.cc
index 9cc64d4bc44..74fff8efeee 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_points_to_vertices.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_points_to_vertices.cc
@@ -18,14 +18,6 @@ static void node_declare(NodeDeclarationBuilder &b)
   b.add_output<decl::Geometry>(N_("Mesh"));
 }
 
-template<typename T>
-static void copy_attribute_to_vertices(const Span<T> src, const IndexMask mask, MutableSpan<T> dst)
-{
-  for (const int i : mask.index_range()) {
-    dst[i] = src[mask[i]];
-  }
-}
-
 /* One improvement would be to move the attribute arrays directly to the mesh when possible. */
 static void geometry_set_points_to_vertices(GeometrySet &geometry_set,
                                             Field<bool> &selection_field)
@@ -66,12 +58,7 @@ static void geometry_set_points_to_vertices(GeometrySet &geometry_set,
         mesh_component.attributes_for_write()->lookup_or_add_for_write_only_span(
             attribute_id, ATTR_DOMAIN_POINT, data_type);
     if (dst && src) {
-      attribute_math::convert_to_static_type(data_type, [&](auto dummy) {
-        using T = decltype(dummy);
-        VArray<T> src_typed = src.typed<T>();
-        VArraySpan<T> src_typed_span{src_typed};
-        copy_attribute_to_vertices(src_typed_span, selection, dst.span.typed<T>());
-      });
+      src.materialize_compressed_to_uninitialized(selection, dst.span.data());
       dst.finish();
     }
   }
diff --git a/source/blender/nodes/geometry/nodes/node_geo_transform.cc b/source/blender/nodes/geometry/nodes/node_geo_transform.cc
index e95db205920..8e65e73d1e2 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_transform.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_transform.cc
@@ -47,21 +47,24 @@ static void transform_mesh(Mesh &mesh, const float4x4 &transform)
 
 static void translate_pointcloud(PointCloud &pointcloud, const float3 translation)
 {
-  CustomData_duplicate_referenced_layer(&pointcloud.pdata, CD_PROP_FLOAT3, pointcloud.totpoint);
-  BKE_pointcloud_update_customdata_pointers(&pointcloud);
-  for (const int i : IndexRange(pointcloud.totpoint)) {
-    add_v3_v3(pointcloud.co[i], translation);
+  MutableAttributeAccessor attributes = bke::pointcloud_attributes_for_write(pointcloud);
+  SpanAttributeWriter position = attributes.lookup_or_add_for_write_span<float3>(
+      "position", ATTR_DOMAIN_POINT);
+  for (const int i : position.span.index_range()) {
+    position.span[i] += translation;
   }
+  position.finish();
 }
 
 static void transform_pointcloud(PointCloud &pointcloud, const float4x4 &transform)
 {
-  CustomData_duplicate_referenced_layer(&pointcloud.pdata, CD_PROP_FLOAT3, pointcloud.totpoint);
-  BKE_pointcloud_update_customdata_pointers(&pointcloud);
-  for (const int i : IndexRange(pointcloud.totpoint)) {
-    float3 &co = *(float3 *)pointcloud.co[i];
-    co = transform * co;
+  MutableAttributeAccessor attributes = bke::pointcloud_attributes_for_write(pointcloud);
+  SpanAttributeWriter position = attributes.lookup_or_add_for_write_span<float3>(
+      "position", ATTR_DOMAIN_POINT);
+  for (const int i : position.span.index_range()) {
+    position.span[i] = transform * position.span[i];
   }
+  position.finish();
 }
 
 static void translate_instances(InstancesComponent &instances, const float3 translation)
diff --git a/source/blender/nodes/geometry/nodes/node_geo_uv_unwrap.cc b/source/blender/nodes/geometry/nodes/node_geo_uv_unwrap.cc
index 2ec14ad2d29..03657f3e016 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_uv_unwrap.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_uv_unwrap.cc
@@ -121,7 +121,7 @@ static VArray<float3> construct_uv_gvarray(const MeshComponent &component,
   GEO_uv_parametrizer_lscm_begin(handle, false, method == GEO_NODE_UV_UNWRAP_METHOD_ANGLE_BASED);
   GEO_uv_parametrizer_lscm_solve(handle, nullptr, nullptr);
   GEO_uv_parametrizer_lscm_end(handle);
-  GEO_uv_parametrizer_average(handle, true);
+  GEO_uv_parametrizer_average(handle, true, false, false);
   GEO_uv_parametrizer_pack(handle, margin, true, true);
   GEO_uv_parametrizer_flush(handle);
   GEO_uv_parametrizer_delete(handle);
diff --git a/source/blender/nodes/shader/nodes/node_shader_bsdf_hair_principled.cc b/source/blender/nodes/shader/nodes/node_shader_bsdf_hair_principled.cc
index 6495dcfffba..a0579372a15 100644
--- a/source/blender/nodes/shader/nodes/node_shader_bsdf_hair_principled.cc
+++ b/source/blender/nodes/shader/nodes/node_shader_bsdf_hair_principled.cc
@@ -42,8 +42,7 @@ static void node_declare(NodeDeclarationBuilder &b)
       .min(0.0f)
       .max(1.0f)
       .subtype(PROP_FACTOR);
-  b.add_input<decl::Float>(N_("IOR")).default_value(1.55f).min(0.0f).max(1000.0f).subtype(
-      PROP_FACTOR);
+  b.add_input<decl::Float>(N_("IOR")).default_value(1.55f).min(0.0f).max(1000.0f);
   b.add_input<decl::Float>(N_("Offset"))
       .default_value(2.0f * ((float)M_PI) / 180.0f)
       .min(-M_PI_2)
diff --git a/source/blender/python/generic/bgl.c b/source/blender/python/generic/bgl.c
index 92ed0c51b1f..f5c1f060e80 100644
--- a/source/blender/python/generic/bgl.c
+++ b/source/blender/python/generic/bgl.c
@@ -1082,18 +1082,34 @@ static PyObject *Buffer_repr(Buffer *self)
 /** \name OpenGL API Wrapping
  * \{ */
 
-#define BGL_Wrap(funcname, ret, arg_list) \
-  static PyObject *Method_##funcname(PyObject *UNUSED(self), PyObject *args) \
-  { \
-    arg_def arg_list; \
-    ret_def_##ret; \
-    if (!PyArg_ParseTuple(args, arg_str arg_list, arg_ref arg_list)) { \
+#ifdef WITH_OPENGL
+#  define BGL_Wrap(funcname, ret, arg_list) \
+    static PyObject *Method_##funcname(PyObject *UNUSED(self), PyObject *args) \
+    { \
+      arg_def arg_list; \
+      ret_def_##ret; \
+      if (!PyArg_ParseTuple(args, arg_str arg_list, arg_ref arg_list)) { \
+        return NULL; \
+      } \
+      GPU_bgl_start(); \
+      ret_set_##ret gl##funcname(arg_var arg_list); \
+      ret_ret_##ret; \
+    }
+#else
+
+static void bgl_no_opengl_error(void)
+{
+  PyErr_SetString(PyExc_RuntimeError, "Built without OpenGL support");
+}
+
+#  define BGL_Wrap(funcname, ret, arg_list) \
+    static PyObject *Method_##funcname(PyObject *UNUSED(self), PyObject *args) \
+    { \
+      (void)args; \
+      bgl_no_opengl_error(); \
       return NULL; \
-    } \
-    GPU_bgl_start(); \
-    ret_set_##ret gl##funcname(arg_var arg_list); \
-    ret_ret_##ret; \
-  }
+    }
+#endif
 
 /* GL_VERSION_1_0 */
 BGL_Wrap(BlendFunc, void, (GLenum, GLenum));
@@ -1421,12 +1437,22 @@ static void py_module_dict_add_method(PyObject *submodule,
 #ifdef __GNUC__
 #  pragma GCC diagnostic ignored "-Waddress"
 #endif
-#define PY_MOD_ADD_METHOD(func) \
-  { \
-    static PyMethodDef method_def = {"gl" #func, Method_##func, METH_VARARGS}; \
-    py_module_dict_add_method(submodule, dict, &method_def, (gl##func != NULL)); \
-  } \
-  ((void)0)
+
+#ifdef WITH_OPENGL
+#  define PY_MOD_ADD_METHOD(func) \
+    { \
+      static PyMethodDef method_def = {"gl" #func, Method_##func, METH_VARARGS}; \
+      py_module_dict_add_method(submodule, dict, &method_def, (gl##func != NULL)); \
+    } \
+    ((void)0)
+#else
+#  define PY_MOD_ADD_METHOD(func) \
+    { \
+      static PyMethodDef method_def = {"gl" #func, Method_##func, METH_VARARGS}; \
+      py_module_dict_add_method(submodule, dict, &method_def, false); \
+    } \
+    ((void)0)
+#endif
 
 static void init_bgl_version_1_0_methods(PyObject *submodule, PyObject *dict)
 {
@@ -2620,9 +2646,13 @@ static PyObject *Method_ShaderSource(PyObject *UNUSED(self), PyObject *args)
     return NULL;
   }
 
+#ifdef WITH_OPENGL
   glShaderSource(shader, 1, (const char **)&source, NULL);
-
   Py_RETURN_NONE;
+#else
+  bgl_no_opengl_error();
+  return NULL;
+#endif
 }
 
 /** \} */
diff --git a/source/blender/python/gpu/gpu_py_vertex_buffer.c b/source/blender/python/gpu/gpu_py_vertex_buffer.c
index a295bedeae2..ac050128a1d 100644
--- a/source/blender/python/gpu/gpu_py_vertex_buffer.c
+++ b/source/blender/python/gpu/gpu_py_vertex_buffer.c
@@ -323,14 +323,14 @@ static void pygpu_vertbuf__tp_dealloc(BPyGPUVertBuf *self)
 }
 
 PyDoc_STRVAR(pygpu_vertbuf__tp_doc,
-             ".. class:: GPUVertBuf(len, format)\n"
+             ".. class:: GPUVertBuf(format, len)\n"
              "\n"
              "   Contains a VBO.\n"
              "\n"
-             "   :param len: Amount of vertices that will fit into this buffer.\n"
-             "   :type type: `int`\n"
              "   :param format: Vertex format.\n"
-             "   :type buf: :class:`gpu.types.GPUVertFormat`\n");
+             "   :type buf: :class:`gpu.types.GPUVertFormat`\n"
+             "   :param len: Amount of vertices that will fit into this buffer.\n"
+             "   :type type: `int`\n");
 PyTypeObject BPyGPUVertBuf_Type = {
     PyVarObject_HEAD_INIT(NULL, 0).tp_name = "GPUVertBuf",
     .tp_basicsize = sizeof(BPyGPUVertBuf),
diff --git a/source/blender/python/intern/bpy.c b/source/blender/python/intern/bpy.c
index 2e97ae0fc1d..7fe0b9455e6 100644
--- a/source/blender/python/intern/bpy.c
+++ b/source/blender/python/intern/bpy.c
@@ -32,6 +32,7 @@
 #include "bpy.h"
 #include "bpy_app.h"
 #include "bpy_capi_utils.h"
+#include "bpy_driver.h"
 #include "bpy_library.h"
 #include "bpy_operator.h"
 #include "bpy_props.h"
@@ -326,6 +327,49 @@ static PyObject *bpy_resource_path(PyObject *UNUSED(self), PyObject *args, PyObj
   return PyC_UnicodeFromByte(path ? path : "");
 }
 
+/* This is only exposed for tests, see: `tests/python/bl_pyapi_bpy_driver_secure_eval.py`. */
+PyDoc_STRVAR(bpy_driver_secure_code_test_doc,
+             ".. function:: _driver_secure_code_test(code)\n"
+             "\n"
+             "   Test if the script should be considered trusted.\n"
+             "\n"
+             "   :arg code: The code to test.\n"
+             "   :type code: code\n"
+             "   :arg namespace: The namespace of values which are allowed.\n"
+             "   :type namespace: dict\n"
+             "   :arg verbose: Print the reason for considering insecure to the ``stderr``.\n"
+             "   :type verbose: bool\n"
+             "   :return: True when the script is considered trusted.\n"
+             "   :rtype: bool\n");
+static PyObject *bpy_driver_secure_code_test(PyObject *UNUSED(self), PyObject *args, PyObject *kw)
+{
+  PyObject *py_code;
+  PyObject *py_namespace = NULL;
+  const bool verbose = false;
+  static const char *_keywords[] = {"code", "namespace", "verbose", NULL};
+  static _PyArg_Parser _parser = {
+      "O!" /* `expression` */
+      "|$" /* Optional keyword only arguments. */
+      "O!" /* `namespace` */
+      "O&" /* `verbose` */
+      ":driver_secure_code_test",
+      _keywords,
+      0,
+  };
+  if (!_PyArg_ParseTupleAndKeywordsFast(args,
+                                        kw,
+                                        &_parser,
+                                        &PyCode_Type,
+                                        &py_code,
+                                        &PyDict_Type,
+                                        &py_namespace,
+                                        PyC_ParseBool,
+                                        &verbose)) {
+    return NULL;
+  }
+  return PyBool_FromLong(BPY_driver_secure_bytecode_test(py_code, py_namespace, verbose));
+}
+
 PyDoc_STRVAR(bpy_escape_identifier_doc,
              ".. function:: escape_identifier(string)\n"
              "\n"
@@ -492,65 +536,37 @@ static PyObject *bpy_rna_enum_items_static(PyObject *UNUSED(self))
   return result;
 }
 
-static PyMethodDef meth_bpy_script_paths = {
-    "script_paths",
-    (PyCFunction)bpy_script_paths,
-    METH_NOARGS,
-    bpy_script_paths_doc,
-};
-static PyMethodDef meth_bpy_blend_paths = {
-    "blend_paths",
-    (PyCFunction)bpy_blend_paths,
-    METH_VARARGS | METH_KEYWORDS,
-    bpy_blend_paths_doc,
-};
-static PyMethodDef meth_bpy_flip_name = {
-    "flip_name",
-    (PyCFunction)bpy_flip_name,
-    METH_VARARGS | METH_KEYWORDS,
-    bpy_flip_name_doc,
-};
-static PyMethodDef meth_bpy_user_resource = {
-    "user_resource",
-    (PyCFunction)bpy_user_resource,
-    METH_VARARGS | METH_KEYWORDS,
-    NULL,
-};
-static PyMethodDef meth_bpy_system_resource = {
-    "system_resource",
-    (PyCFunction)bpy_system_resource,
-    METH_VARARGS | METH_KEYWORDS,
-    bpy_system_resource_doc,
-};
-static PyMethodDef meth_bpy_resource_path = {
-    "resource_path",
-    (PyCFunction)bpy_resource_path,
-    METH_VARARGS | METH_KEYWORDS,
-    bpy_resource_path_doc,
-};
-static PyMethodDef meth_bpy_escape_identifier = {
-    "escape_identifier",
-    (PyCFunction)bpy_escape_identifier,
-    METH_O,
-    bpy_escape_identifier_doc,
-};
-static PyMethodDef meth_bpy_unescape_identifier = {
-    "unescape_identifier",
-    (PyCFunction)bpy_unescape_identifier,
-    METH_O,
-    bpy_unescape_identifier_doc,
-};
-static PyMethodDef meth_bpy_context_members = {
-    "context_members",
-    (PyCFunction)bpy_context_members,
-    METH_NOARGS,
-    bpy_context_members_doc,
-};
-static PyMethodDef meth_bpy_rna_enum_items_static = {
-    "rna_enum_items_static",
-    (PyCFunction)bpy_rna_enum_items_static,
-    METH_NOARGS,
-    bpy_rna_enum_items_static_doc,
+static PyMethodDef bpy_methods[] = {
+    {"script_paths", (PyCFunction)bpy_script_paths, METH_NOARGS, bpy_script_paths_doc},
+    {"blend_paths",
+     (PyCFunction)bpy_blend_paths,
+     METH_VARARGS | METH_KEYWORDS,
+     bpy_blend_paths_doc},
+    {"flip_name", (PyCFunction)bpy_flip_name, METH_VARARGS | METH_KEYWORDS, bpy_flip_name_doc},
+    {"user_resource", (PyCFunction)bpy_user_resource, METH_VARARGS | METH_KEYWORDS, NULL},
+    {"system_resource",
+     (PyCFunction)bpy_system_resource,
+     METH_VARARGS | METH_KEYWORDS,
+     bpy_system_resource_doc},
+    {"resource_path",
+     (PyCFunction)bpy_resource_path,
+     METH_VARARGS | METH_KEYWORDS,
+     bpy_resource_path_doc},
+    {"_driver_secure_code_test",
+     (PyCFunction)bpy_driver_secure_code_test,
+     METH_VARARGS | METH_KEYWORDS,
+     bpy_driver_secure_code_test_doc},
+    {"escape_identifier", (PyCFunction)bpy_escape_identifier, METH_O, bpy_escape_identifier_doc},
+    {"unescape_identifier",
+     (PyCFunction)bpy_unescape_identifier,
+     METH_O,
+     bpy_unescape_identifier_doc},
+    {"context_members", (PyCFunction)bpy_context_members, METH_NOARGS, bpy_context_members_doc},
+    {"rna_enum_items_static",
+     (PyCFunction)bpy_rna_enum_items_static,
+     METH_NOARGS,
+     bpy_rna_enum_items_static_doc},
+    {NULL, NULL, 0, NULL},
 };
 
 static PyObject *bpy_import_test(const char *modname)
@@ -632,35 +648,12 @@ void BPy_init_modules(struct bContext *C)
   /* Register methods and property get/set for RNA types. */
   BPY_rna_types_extend_capi();
 
-  /* utility func's that have nowhere else to go */
-  PyModule_AddObject(mod,
-                     meth_bpy_script_paths.ml_name,
-                     (PyObject *)PyCFunction_New(&meth_bpy_script_paths, NULL));
-  PyModule_AddObject(
-      mod, meth_bpy_blend_paths.ml_name, (PyObject *)PyCFunction_New(&meth_bpy_blend_paths, NULL));
-  PyModule_AddObject(mod,
-                     meth_bpy_user_resource.ml_name,
-                     (PyObject *)PyCFunction_New(&meth_bpy_user_resource, NULL));
-  PyModule_AddObject(mod,
-                     meth_bpy_system_resource.ml_name,
-                     (PyObject *)PyCFunction_New(&meth_bpy_system_resource, NULL));
-  PyModule_AddObject(mod,
-                     meth_bpy_resource_path.ml_name,
-                     (PyObject *)PyCFunction_New(&meth_bpy_resource_path, NULL));
-  PyModule_AddObject(mod,
-                     meth_bpy_escape_identifier.ml_name,
-                     (PyObject *)PyCFunction_New(&meth_bpy_escape_identifier, NULL));
-  PyModule_AddObject(mod,
-                     meth_bpy_unescape_identifier.ml_name,
-                     (PyObject *)PyCFunction_New(&meth_bpy_unescape_identifier, NULL));
-  PyModule_AddObject(
-      mod, meth_bpy_flip_name.ml_name, (PyObject *)PyCFunction_New(&meth_bpy_flip_name, NULL));
-  PyModule_AddObject(mod,
-                     meth_bpy_context_members.ml_name,
-                     (PyObject *)PyCFunction_New(&meth_bpy_context_members, NULL));
-  PyModule_AddObject(mod,
-                     meth_bpy_rna_enum_items_static.ml_name,
-                     (PyObject *)PyCFunction_New(&meth_bpy_rna_enum_items_static, NULL));
+  for (int i = 0; bpy_methods[i].ml_name; i++) {
+    PyMethodDef *m = &bpy_methods[i];
+    /* Currently there is no need to support these. */
+    BLI_assert((m->ml_flags & (METH_CLASS | METH_STATIC)) == 0);
+    PyModule_AddObject(mod, m->ml_name, (PyObject *)PyCFunction_New(m, NULL));
+  }
 
   /* register funcs (bpy_rna.c) */
   PyModule_AddObject(mod,
diff --git a/source/blender/python/intern/bpy_driver.c b/source/blender/python/intern/bpy_driver.c
index cc64af2a489..04aa203d198 100644
--- a/source/blender/python/intern/bpy_driver.c
+++ b/source/blender/python/intern/bpy_driver.c
@@ -318,6 +318,7 @@ static const bool secure_opcodes[255] = {
     OK_OP(UNARY_INVERT),
     OK_OP(BINARY_SUBSCR),
     OK_OP(GET_LEN),
+    OK_OP(LIST_TO_TUPLE),
     OK_OP(RETURN_VALUE),
     OK_OP(SWAP),
     OK_OP(BUILD_TUPLE),
@@ -332,6 +333,7 @@ static const bool secure_opcodes[255] = {
     OK_OP(POP_JUMP_FORWARD_IF_TRUE),
     OK_OP(LOAD_GLOBAL),
     OK_OP(IS_OP),
+    OK_OP(CONTAINS_OP),
     OK_OP(BINARY_OP),
     OK_OP(LOAD_FAST),
     OK_OP(STORE_FAST),
@@ -342,6 +344,14 @@ static const bool secure_opcodes[255] = {
     OK_OP(LOAD_DEREF),
     OK_OP(STORE_DEREF),
     OK_OP(RESUME),
+    OK_OP(LIST_EXTEND),
+    OK_OP(SET_UPDATE),
+/* NOTE(@campbellbarton): Don't enable dict manipulation, unless we can prove there is not way it
+ * can be used to manipulate the name-space (potentially allowing malicious code). */
+#    if 0
+    OK_OP(DICT_MERGE),
+    OK_OP(DICT_UPDATE),
+#    endif
     OK_OP(POP_JUMP_BACKWARD_IF_NOT_NONE),
     OK_OP(POP_JUMP_BACKWARD_IF_NONE),
     OK_OP(POP_JUMP_BACKWARD_IF_FALSE),
@@ -395,6 +405,7 @@ static const bool secure_opcodes[255] = {
     OK_OP(INPLACE_AND),
     OK_OP(INPLACE_XOR),
     OK_OP(INPLACE_OR),
+    OK_OP(LIST_TO_TUPLE),
     OK_OP(RETURN_VALUE),
     OK_OP(ROT_N),
     OK_OP(BUILD_TUPLE),
@@ -410,12 +421,21 @@ static const bool secure_opcodes[255] = {
     OK_OP(POP_JUMP_IF_TRUE),
     OK_OP(LOAD_GLOBAL),
     OK_OP(IS_OP),
+    OK_OP(CONTAINS_OP),
     OK_OP(LOAD_FAST),
     OK_OP(STORE_FAST),
     OK_OP(DELETE_FAST),
     OK_OP(BUILD_SLICE),
     OK_OP(LOAD_DEREF),
     OK_OP(STORE_DEREF),
+    OK_OP(LIST_EXTEND),
+    OK_OP(SET_UPDATE),
+/* NOTE(@campbellbarton): Don't enable dict manipulation, unless we can prove there is not way it
+ * can be used to manipulate the name-space (potentially allowing malicious code). */
+#    if 0
+    OK_OP(DICT_MERGE),
+    OK_OP(DICT_UPDATE),
+#    endif
 
     /* Special cases. */
     OK_OP(LOAD_CONST),    /* Ok because constants are accepted. */
@@ -429,9 +449,10 @@ static const bool secure_opcodes[255] = {
 
 #  undef OK_OP
 
-static bool bpy_driver_secure_bytecode_validate(PyObject *expr_code,
-                                                PyObject *dict_arr[],
-                                                const char *error_prefix)
+bool BPY_driver_secure_bytecode_test_ex(PyObject *expr_code,
+                                        PyObject *namespace_array[],
+                                        const bool verbose,
+                                        const char *error_prefix)
 {
   PyCodeObject *py_code = (PyCodeObject *)expr_code;
 
@@ -439,21 +460,23 @@ static bool bpy_driver_secure_bytecode_validate(PyObject *expr_code,
   {
     for (int i = 0; i < PyTuple_GET_SIZE(py_code->co_names); i++) {
       PyObject *name = PyTuple_GET_ITEM(py_code->co_names, i);
-
+      const char *name_str = PyUnicode_AsUTF8(name);
       bool contains_name = false;
-      for (int j = 0; dict_arr[j]; j++) {
-        if (PyDict_Contains(dict_arr[j], name)) {
+      for (int j = 0; namespace_array[j]; j++) {
+        if (PyDict_Contains(namespace_array[j], name)) {
           contains_name = true;
           break;
         }
       }
 
-      if (contains_name == false) {
-        fprintf(stderr,
-                "\t%s: restricted access disallows name '%s', "
-                "enable auto-execution to support\n",
-                error_prefix,
-                PyUnicode_AsUTF8(name));
+      if ((contains_name == false) || (name_str[0] == '_')) {
+        if (verbose) {
+          fprintf(stderr,
+                  "\t%s: restricted access disallows name '%s', "
+                  "enable auto-execution to support\n",
+                  error_prefix,
+                  name_str);
+        }
         return false;
       }
     }
@@ -485,11 +508,13 @@ static bool bpy_driver_secure_bytecode_validate(PyObject *expr_code,
     for (Py_ssize_t i = 0; i < code_len; i++) {
       const int opcode = _Py_OPCODE(codestr[i]);
       if (secure_opcodes[opcode] == false) {
-        fprintf(stderr,
-                "\t%s: restricted access disallows opcode '%d', "
-                "enable auto-execution to support\n",
-                error_prefix,
-                opcode);
+        if (verbose) {
+          fprintf(stderr,
+                  "\t%s: restricted access disallows opcode '%d', "
+                  "enable auto-execution to support\n",
+                  error_prefix,
+                  opcode);
+        }
         ok = false;
         break;
       }
@@ -506,6 +531,26 @@ static bool bpy_driver_secure_bytecode_validate(PyObject *expr_code,
   return true;
 }
 
+bool BPY_driver_secure_bytecode_test(PyObject *expr_code, PyObject *namespace, const bool verbose)
+{
+
+  if (!bpy_pydriver_Dict) {
+    if (bpy_pydriver_create_dict() != 0) {
+      fprintf(stderr, "%s: couldn't create Python dictionary\n", __func__);
+      return false;
+    }
+  }
+  return BPY_driver_secure_bytecode_test_ex(expr_code,
+                                            (PyObject *[]){
+                                                bpy_pydriver_Dict,
+                                                bpy_pydriver_Dict__whitelist,
+                                                namespace,
+                                                NULL,
+                                            },
+                                            verbose,
+                                            __func__);
+}
+
 #endif /* USE_BYTECODE_WHITELIST */
 float BPY_driver_exec(struct PathResolvedRNA *anim_rna,
                       ChannelDriver *driver,
@@ -697,14 +742,17 @@ float BPY_driver_exec(struct PathResolvedRNA *anim_rna,
 #ifdef USE_BYTECODE_WHITELIST
   if (is_recompile && expr_code) {
     if (!(G.f & G_FLAG_SCRIPT_AUTOEXEC)) {
-      if (!bpy_driver_secure_bytecode_validate(expr_code,
-                                               (PyObject *[]){
-                                                   bpy_pydriver_Dict,
-                                                   bpy_pydriver_Dict__whitelist,
-                                                   driver_vars,
-                                                   NULL,
-                                               },
-                                               __func__)) {
+      if (!BPY_driver_secure_bytecode_test_ex(
+              expr_code,
+              (PyObject *[]){
+                  bpy_pydriver_Dict,
+                  bpy_pydriver_Dict__whitelist,
+                  driver_vars,
+                  NULL,
+              },
+              /* Always be verbose since this can give hints to why evaluation fails. */
+              true,
+              __func__)) {
         if (!(G.f & G_FLAG_SCRIPT_AUTOEXEC_FAIL_QUIET)) {
           G.f |= G_FLAG_SCRIPT_AUTOEXEC_FAIL;
           BLI_snprintf(G.autoexec_fail, sizeof(G.autoexec_fail), "Driver '%s'", expr);
diff --git a/source/blender/python/intern/bpy_driver.h b/source/blender/python/intern/bpy_driver.h
index 301c6b3662e..f0d9717dbbd 100644
--- a/source/blender/python/intern/bpy_driver.h
+++ b/source/blender/python/intern/bpy_driver.h
@@ -10,6 +10,8 @@
 extern "C" {
 #endif
 
+#include <stdbool.h>
+
 /**
  * For faster execution we keep a special dictionary for py-drivers, with
  * the needed modules and aliases.
@@ -21,6 +23,14 @@ int bpy_pydriver_create_dict(void);
  */
 extern PyObject *bpy_pydriver_Dict;
 
+extern bool BPY_driver_secure_bytecode_test_ex(PyObject *expr_code,
+                                               PyObject *namespace_array[],
+                                               const bool verbose,
+                                               const char *error_prefix);
+extern bool BPY_driver_secure_bytecode_test(PyObject *expr_code,
+                                            PyObject *namespace,
+                                            const bool verbose);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/blender/python/intern/bpy_rna_anim.c b/source/blender/python/intern/bpy_rna_anim.c
index fb744432d4b..f25e9d0bbbc 100644
--- a/source/blender/python/intern/bpy_rna_anim.c
+++ b/source/blender/python/intern/bpy_rna_anim.c
@@ -487,7 +487,8 @@ PyObject *pyrna_struct_keyframe_delete(BPy_StructRNA *self, PyObject *args, PyOb
         i = BKE_fcurve_bezt_binarysearch_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);
+          BKE_fcurve_delete_key(fcu, i);
+          BKE_fcurve_handles_recalc(fcu);
           result = true;
         }
       }
diff --git a/source/blender/python/intern/bpy_rna_gizmo.c b/source/blender/python/intern/bpy_rna_gizmo.c
index 61f439e5152..32ef7865e84 100644
--- a/source/blender/python/intern/bpy_rna_gizmo.c
+++ b/source/blender/python/intern/bpy_rna_gizmo.c
@@ -314,6 +314,8 @@ PyDoc_STRVAR(
     "\n"
     "   Assigns callbacks to a gizmos property.\n"
     "\n"
+    "   :arg target: Target property name.\n"
+    "   :type target: string\n"
     "   :arg get: Function that returns the value for this property (single value or sequence).\n"
     "   :type get: callable\n"
     "   :arg set: Function that takes a single value argument and applies it.\n"
diff --git a/source/blender/python/mathutils/mathutils_Matrix.c b/source/blender/python/mathutils/mathutils_Matrix.c
index 8cd7a5c7d87..1e85ece124d 100644
--- a/source/blender/python/mathutils/mathutils_Matrix.c
+++ b/source/blender/python/mathutils/mathutils_Matrix.c
@@ -290,6 +290,18 @@ static PyObject *matrix__apply_to_copy(PyObject *(*matrix_func)(MatrixObject *),
   return NULL;
 }
 
+static bool matrix_is_identity(MatrixObject *self)
+{
+  for (int row = 0; row < self->row_num; row++) {
+    for (int col = 0; col < self->col_num; col++) {
+      if (MATRIX_ITEM(self, row, col) != ((row != col) ? 0.0f : 1.0f)) {
+        return false;
+      }
+    }
+  }
+  return true;
+}
+
 /** \} */
 
 /* -------------------------------------------------------------------- */
@@ -3104,6 +3116,16 @@ static PyObject *Matrix_median_scale_get(MatrixObject *self, void *UNUSED(closur
   return PyFloat_FromDouble(mat3_to_scale(mat));
 }
 
+PyDoc_STRVAR(Matrix_is_identity_doc,
+             "True if this is an identity matrix (read-only).\n\n:type: bool");
+static PyObject *Matrix_is_identity_get(MatrixObject *self, void *UNUSED(closure))
+{
+  if (BaseMath_ReadCallback(self) == -1) {
+    return NULL;
+  }
+  return PyBool_FromLong(matrix_is_identity(self));
+}
+
 PyDoc_STRVAR(Matrix_is_negative_doc,
              "True if this matrix results in a negative scale, 3x3 and 4x4 only, "
              "(read-only).\n\n:type: bool");
@@ -3187,6 +3209,7 @@ static PyGetSetDef Matrix_getseters[] = {
      NULL},
     {"row", (getter)Matrix_row_get, (setter)NULL, Matrix_row_doc, NULL},
     {"col", (getter)Matrix_col_get, (setter)NULL, Matrix_col_doc, NULL},
+    {"is_identity", (getter)Matrix_is_identity_get, (setter)NULL, Matrix_is_identity_doc, NULL},
     {"is_negative", (getter)Matrix_is_negative_get, (setter)NULL, Matrix_is_negative_doc, NULL},
     {"is_orthogonal",
      (getter)Matrix_is_orthogonal_get,
diff --git a/source/blender/render/intern/engine.c b/source/blender/render/intern/engine.c
index 8a4b4c2a70d..266e66092b8 100644
--- a/source/blender/render/intern/engine.c
+++ b/source/blender/render/intern/engine.c
@@ -46,6 +46,8 @@
 
 #include "DRW_engine.h"
 
+#include "GPU_context.h"
+
 #include "pipeline.h"
 #include "render_result.h"
 #include "render_types.h"
@@ -950,6 +952,16 @@ bool RE_engine_render(Render *re, bool do_all)
     re->draw_lock(re->dlh, true);
   }
 
+  if ((type->flag & RE_USE_GPU_CONTEXT) && !GPU_backend_supported()) {
+    /* Clear UI drawing locks. */
+    if (re->draw_lock) {
+      re->draw_lock(re->dlh, false);
+    }
+    BKE_report(re->reports, RPT_ERROR, "Can not initialize the GPU");
+    G.is_break = true;
+    return true;
+  }
+
   /* update animation here so any render layer animation is applied before
    * creating the render result */
   if ((re->r.scemode & (R_NO_FRAME_UPDATE | R_BUTS_PREVIEW)) == 0) {
diff --git a/source/blender/render/intern/pipeline.c b/source/blender/render/intern/pipeline.c
index 154b689b4a5..1c42467bc3d 100644
--- a/source/blender/render/intern/pipeline.c
+++ b/source/blender/render/intern/pipeline.c
@@ -1036,8 +1036,7 @@ static void do_render_compositor_scene(Render *re, Scene *sce, int cfra)
 
   /* exception: scene uses own size (unfinished code) */
   if (0) {
-    winx = (sce->r.size * sce->r.xsch) / 100;
-    winy = (sce->r.size * sce->r.ysch) / 100;
+    BKE_render_resolution(&sce->r, false, &winx, &winy);
   }
 
   /* initial setup */
@@ -1675,8 +1674,7 @@ static int render_init_from_main(Render *re,
    * r.border is the clipping rect */
 
   /* calculate actual render result and display size */
-  winx = (rd->size * rd->xsch) / 100;
-  winy = (rd->size * rd->ysch) / 100;
+  BKE_render_resolution(rd, false, &winx, &winy);
 
   /* We always render smaller part, inserting it in larger image is compositor business,
    * it uses 'disprect' for it. */
@@ -2409,8 +2407,7 @@ void RE_PreviewRender(Render *re, Main *bmain, Scene *sce)
   Object *camera;
   int winx, winy;
 
-  winx = (sce->r.size * sce->r.xsch) / 100;
-  winy = (sce->r.size * sce->r.ysch) / 100;
+  BKE_render_resolution(&sce->r, false, &winx, &winy);
 
   RE_InitState(re, NULL, &sce->r, &sce->view_layers, NULL, winx, winy, NULL);
 
@@ -2439,8 +2436,7 @@ bool RE_ReadRenderResult(Scene *scene, Scene *scenode)
   rcti disprect;
 
   /* calculate actual render result and display size */
-  winx = (scene->r.size * scene->r.xsch) / 100;
-  winy = (scene->r.size * scene->r.ysch) / 100;
+  BKE_render_resolution(&scene->r, false, &winx, &winy);
 
   /* only in movie case we render smaller part */
   if (scene->r.mode & R_BORDER) {
diff --git a/source/blender/sequencer/intern/proxy.c b/source/blender/sequencer/intern/proxy.c
index 522c64f7791..374e18dd36a 100644
--- a/source/blender/sequencer/intern/proxy.c
+++ b/source/blender/sequencer/intern/proxy.c
@@ -511,15 +511,11 @@ void SEQ_proxy_rebuild(SeqIndexBuildContext *context,
   }
 
   /* fail safe code */
+  int width, height;
+  BKE_render_resolution(&scene->r, false, &width, &height);
 
-  SEQ_render_new_render_data(bmain,
-                             context->depsgraph,
-                             context->scene,
-                             roundf((scene->r.size * (float)scene->r.xsch) / 100.0f),
-                             roundf((scene->r.size * (float)scene->r.ysch) / 100.0f),
-                             100,
-                             false,
-                             &render_context);
+  SEQ_render_new_render_data(
+      bmain, context->depsgraph, context->scene, width, height, 100, false, &render_context);
 
   render_context.skip_cache = true;
   render_context.is_proxy_render = true;
diff --git a/source/blender/sequencer/intern/render.c b/source/blender/sequencer/intern/render.c
index 15487a597d1..b7dc0e7035d 100644
--- a/source/blender/sequencer/intern/render.c
+++ b/source/blender/sequencer/intern/render.c
@@ -1447,8 +1447,8 @@ static ImBuf *seq_render_scene_strip(const SeqRenderData *context,
 
   if ((sequencer_view3d_fn && do_seq_gl && camera) && is_thread_main) {
     char err_out[256] = "unknown";
-    const int width = (scene->r.xsch * scene->r.size) / 100;
-    const int height = (scene->r.ysch * scene->r.size) / 100;
+    int width, height;
+    BKE_render_resolution(&scene->r, false, &width, &height);
     const char *viewname = BKE_scene_multiview_render_view_name_get(&scene->r, context->view_id);
 
     unsigned int draw_flags = V3D_OFSDRAW_NONE;
diff --git a/source/blender/windowmanager/WM_api.h b/source/blender/windowmanager/WM_api.h
index d852b85a3d0..44c5b86857d 100644
--- a/source/blender/windowmanager/WM_api.h
+++ b/source/blender/windowmanager/WM_api.h
@@ -1214,10 +1214,24 @@ int WM_operator_flag_only_pass_through_on_press(int retval, const struct wmEvent
 /* Drag and drop. */
 
 /**
- * Note that the pointer should be valid allocated and not on stack.
+ * Start dragging immediately with the given data.
+ * Note that \a poin should be valid allocated and not on stack.
  */
-struct wmDrag *WM_event_start_drag(
+void WM_event_start_drag(
     struct bContext *C, int icon, int type, void *poin, double value, unsigned int flags);
+/**
+ * Create and fill the dragging data, but don't start dragging just yet (unlike
+ * #WM_event_start_drag()). Must be followed up by #WM_event_start_prepared_drag(), otherwise the
+ * returned pointer will leak memory.
+ *
+ * Note that \a poin should be valid allocated and not on stack.
+ */
+wmDrag *WM_drag_data_create(
+    struct bContext *C, int icon, int type, void *poin, double value, unsigned int flags);
+/**
+ * Invoke dragging using the given \a drag data.
+ */
+void WM_event_start_prepared_drag(struct bContext *C, wmDrag *drag);
 void WM_event_drag_image(struct wmDrag *, struct ImBuf *, float scale);
 void WM_drag_free(struct wmDrag *drag);
 void WM_drag_data_free(int dragtype, void *poin);
@@ -1530,6 +1544,7 @@ bool WM_event_is_modal_drag_exit(const struct wmEvent *event,
 bool WM_event_is_mouse_drag(const struct wmEvent *event);
 bool WM_event_is_mouse_drag_or_press(const wmEvent *event);
 int WM_event_drag_direction(const wmEvent *event);
+char WM_event_utf8_to_ascii(const struct wmEvent *event) ATTR_NONNULL(1) ATTR_WARN_UNUSED_RESULT;
 
 /**
  * Detect motion between selection (callers should only use this for selection picking),
diff --git a/source/blender/windowmanager/WM_types.h b/source/blender/windowmanager/WM_types.h
index 32bc2f96365..e7cbe936607 100644
--- a/source/blender/windowmanager/WM_types.h
+++ b/source/blender/windowmanager/WM_types.h
@@ -683,13 +683,11 @@ typedef struct wmEvent {
   /** Region relative mouse position (name convention before Blender 2.5). */
   int mval[2];
   /**
-   * From, ghost if utf8 is enabled for the platform,
-   * #BLI_str_utf8_size() must _always_ be valid, check
-   * when assigning s we don't need to check on every access after.
+   * A single UTF8 encoded character.
+   * #BLI_str_utf8_size() must _always_ return a valid value,
+   * check when assigning so we don't need to check on every access after.
    */
   char utf8_buf[6];
-  /** From ghost, fallback if utf8 isn't set. */
-  char ascii;
 
   /** Modifier states: #KM_SHIFT, #KM_CTRL, #KM_ALT & #KM_OSKEY. */
   uint8_t modifier;
diff --git a/source/blender/windowmanager/intern/wm.c b/source/blender/windowmanager/intern/wm.c
index 32cec8f779c..0d74bc259f4 100644
--- a/source/blender/windowmanager/intern/wm.c
+++ b/source/blender/windowmanager/intern/wm.c
@@ -257,7 +257,7 @@ static void window_manager_blend_read_lib(BlendLibReader *reader, ID *id)
 
 IDTypeInfo IDType_ID_WM = {
     .id_code = ID_WM,
-    .id_filter = 0,
+    .id_filter = FILTER_ID_WM,
     .main_listbase_index = INDEX_ID_WM,
     .struct_size = sizeof(wmWindowManager),
     .name = "WindowManager",
diff --git a/source/blender/windowmanager/intern/wm_dragdrop.c b/source/blender/windowmanager/intern/wm_dragdrop.c
index 546ba795892..36bd69a9b25 100644
--- a/source/blender/windowmanager/intern/wm_dragdrop.c
+++ b/source/blender/windowmanager/intern/wm_dragdrop.c
@@ -175,16 +175,14 @@ static void wm_dropbox_invoke(bContext *C, wmDrag *drag)
   }
 }
 
-wmDrag *WM_event_start_drag(
+wmDrag *WM_drag_data_create(
     struct bContext *C, int icon, int type, void *poin, double value, unsigned int flags)
 {
-  wmWindowManager *wm = CTX_wm_manager(C);
   wmDrag *drag = MEM_callocN(sizeof(struct wmDrag), "new drag");
 
   /* Keep track of future multi-touch drag too, add a mouse-pointer id or so. */
   /* if multiple drags are added, they're drawn as list */
 
-  BLI_addtail(&wm->drags, drag);
   drag->flags = flags;
   drag->icon = icon;
   drag->type = type;
@@ -226,9 +224,22 @@ wmDrag *WM_event_start_drag(
   }
   drag->value = value;
 
+  return drag;
+}
+
+void WM_event_start_prepared_drag(bContext *C, wmDrag *drag)
+{
+  wmWindowManager *wm = CTX_wm_manager(C);
+
+  BLI_addtail(&wm->drags, drag);
   wm_dropbox_invoke(C, drag);
+}
 
-  return drag;
+void WM_event_start_drag(
+    struct bContext *C, int icon, int type, void *poin, double value, unsigned int flags)
+{
+  wmDrag *drag = WM_drag_data_create(C, icon, type, poin, value, flags);
+  WM_event_start_prepared_drag(C, drag);
 }
 
 void wm_drags_exit(wmWindowManager *wm, wmWindow *win)
diff --git a/source/blender/windowmanager/intern/wm_event_query.c b/source/blender/windowmanager/intern/wm_event_query.c
index 221073d288a..81044197ae7 100644
--- a/source/blender/windowmanager/intern/wm_event_query.c
+++ b/source/blender/windowmanager/intern/wm_event_query.c
@@ -112,7 +112,7 @@ void WM_event_print(const wmEvent *event)
         "wmEvent type:%d/%s, val:%d/%s, "
         "prev_type:%d/%s, prev_val:%d/%s, "
         "modifier=%s, keymodifier:%d, flag:%s, "
-        "mouse:(%d,%d), ascii:'%c', utf8:'%.*s', pointer:%p",
+        "mouse:(%d,%d), utf8:'%.*s', pointer:%p",
         event->type,
         type_id,
         event->val,
@@ -126,7 +126,6 @@ void WM_event_print(const wmEvent *event)
         flag_id,
         event->xy[0],
         event->xy[1],
-        event->ascii,
         BLI_str_utf8_size(event->utf8_buf),
         event->utf8_buf,
         (const void *)event);
@@ -401,6 +400,20 @@ void WM_event_drag_start_xy(const wmEvent *event, int r_xy[2])
 /** \} */
 
 /* -------------------------------------------------------------------- */
+/** \name Event Text Queries
+ * \{ */
+
+char WM_event_utf8_to_ascii(const struct wmEvent *event)
+{
+  if (BLI_str_utf8_size(event->utf8_buf) == 1) {
+    return event->utf8_buf[0];
+  }
+  return '\0';
+}
+
+/** \} */
+
+/* -------------------------------------------------------------------- */
 /** \name Event Preference Mapping
  * \{ */
 
diff --git a/source/blender/windowmanager/intern/wm_event_system.cc b/source/blender/windowmanager/intern/wm_event_system.cc
index 0395e8bda7a..79b303364d8 100644
--- a/source/blender/windowmanager/intern/wm_event_system.cc
+++ b/source/blender/windowmanager/intern/wm_event_system.cc
@@ -2086,9 +2086,7 @@ static bool wm_eventmatch(const wmEvent *winevent, const wmKeyMapItem *kmi)
   /* The matching rules. */
   if (kmitype == KM_TEXTINPUT) {
     if (winevent->val == KM_PRESS) { /* Prevent double clicks. */
-      /* Not using #ISTEXTINPUT anymore because (at least on Windows) some key codes above 255
-       * could have printable ascii keys, See T30479. */
-      if (ISKEYBOARD(winevent->type) && (winevent->ascii || winevent->utf8_buf[0])) {
+      if (ISKEYBOARD(winevent->type) && winevent->utf8_buf[0]) {
         return true;
       }
     }
@@ -5042,7 +5040,6 @@ static wmEvent *wm_event_add_mousemove_to_head(wmWindow *win)
     tevent = *event_last;
 
     tevent.flag = (eWM_EventFlag)0;
-    tevent.ascii = '\0';
     tevent.utf8_buf[0] = '\0';
 
     wm_event_custom_clear(&tevent);
@@ -5136,6 +5133,53 @@ static void wm_event_state_update_and_click_set(wmEvent *event,
   wm_event_state_update_and_click_set_ex(event, event_state, is_keyboard, check_double_click);
 }
 
+/* Returns true when the two events corresponds to a press of the same key with the same modifiers.
+ */
+static bool wm_event_is_same_key_press(const wmEvent &event_a, const wmEvent &event_b)
+{
+  if (event_a.val != KM_PRESS || event_b.val != KM_PRESS) {
+    return false;
+  }
+
+  if (event_a.modifier != event_b.modifier || event_a.type != event_b.type) {
+    return false;
+  }
+
+  return true;
+}
+
+/**
+ * Returns true if the event is a key press event which is to be ignored and not added to the event
+ * queue.
+ *
+ * A key press event will be ignored if there is already matched key press in the queue.
+ * This avoids the event queue "clogging" in the situations when there is an operator bound to a
+ * key press event and the execution time of the operator is longer than the key repeat.
+ */
+static bool wm_event_is_ignorable_key_press(const wmWindow *win, const wmEvent &event)
+{
+  if (BLI_listbase_is_empty(&win->event_queue)) {
+    /* If the queue is empty never ignore the event.
+     * Empty queue at this point means that the events are handled fast enough, and there is no
+     * reason to ignore anything. */
+    return false;
+  }
+
+  if ((event.flag & WM_EVENT_IS_REPEAT) == 0) {
+    /* Only ignore repeat events from the keyboard, and allow accumulation of non-repeat events.
+     *
+     * The goal of this check is to allow events coming from a keyboard macro software, which can
+     * generate events quicker than the main loop handles them. In this case we want all events to
+     * be handled (unless the keyboard macro software tags them as repeat) because otherwise it
+     * will become impossible to get reliable results of automated events testing. */
+    return false;
+  }
+
+  const wmEvent &last_event = *reinterpret_cast<const wmEvent *>(win->event_queue.last);
+
+  return wm_event_is_same_key_press(last_event, event);
+}
+
 void wm_event_add_ghostevent(wmWindowManager *wm, wmWindow *win, int type, void *customdata)
 {
   if (UNLIKELY(G.f & G_FLAG_EVENT_SIMULATE)) {
@@ -5329,8 +5373,7 @@ void wm_event_add_ghostevent(wmWindowManager *wm, wmWindow *win, int type, void
         break;
       }
 
-      event.ascii = kd->ascii;
-      /* Might be not nullptr terminated. */
+      /* Might be not null terminated. */
       memcpy(event.utf8_buf, kd->utf8_buf, sizeof(event.utf8_buf));
       if (kd->is_repeat) {
         event.flag |= WM_EVENT_IS_REPEAT;
@@ -5341,8 +5384,6 @@ void wm_event_add_ghostevent(wmWindowManager *wm, wmWindow *win, int type, void
 
       /* Exclude arrow keys, escape, etc from text input. */
       if (type == GHOST_kEventKeyUp) {
-        event.ascii = '\0';
-
         /* Ghost should do this already for key up. */
         if (event.utf8_buf[0]) {
           CLOG_ERROR(WM_LOG_EVENTS,
@@ -5351,15 +5392,28 @@ void wm_event_add_ghostevent(wmWindowManager *wm, wmWindow *win, int type, void
         event.utf8_buf[0] = '\0';
       }
       else {
-        if (event.ascii < 32 && event.ascii > 0) {
-          event.ascii = '\0';
-        }
         if (event.utf8_buf[0] < 32 && event.utf8_buf[0] > 0) {
           event.utf8_buf[0] = '\0';
         }
       }
 
       if (event.utf8_buf[0]) {
+        /* NOTE(@campbellbarton): Detect non-ASCII characters stored in `utf8_buf`,
+         * ideally this would never happen but it can't be ruled out for X11 which has
+         * special handling of Latin1 when building without UTF8 support.
+         * Avoid regressions by adding this conversions, it should eventually be removed. */
+        if ((event.utf8_buf[0] >= 0x80) && (event.utf8_buf[1] == '\0')) {
+          const uint c = (uint)event.utf8_buf[0];
+          int utf8_buf_len = BLI_str_utf8_from_unicode(c, event.utf8_buf, sizeof(event.utf8_buf));
+          CLOG_ERROR(WM_LOG_EVENTS,
+                     "ghost detected non-ASCII single byte character '%u', converting to utf8 "
+                     "('%.*s', length=%d)",
+                     c,
+                     utf8_buf_len,
+                     event.utf8_buf,
+                     utf8_buf_len);
+        }
+
         if (BLI_str_utf8_size(event.utf8_buf) == -1) {
           CLOG_ERROR(WM_LOG_EVENTS,
                      "ghost detected an invalid unicode character '%d'",
@@ -5432,7 +5486,9 @@ void wm_event_add_ghostevent(wmWindowManager *wm, wmWindow *win, int type, void
         G.is_break = true;
       }
 
-      wm_event_add(win, &event);
+      if (!wm_event_is_ignorable_key_press(win, event)) {
+        wm_event_add(win, &event);
+      }
 
       break;
     }
diff --git a/source/blender/windowmanager/intern/wm_init_exit.c b/source/blender/windowmanager/intern/wm_init_exit.c
index 252cfc6e143..7f5ec77e16d 100644
--- a/source/blender/windowmanager/intern/wm_init_exit.c
+++ b/source/blender/windowmanager/intern/wm_init_exit.c
@@ -169,6 +169,10 @@ void WM_init_opengl(void)
     wm_ghost_init(NULL);
   }
 
+  if (!GPU_backend_supported()) {
+    return;
+  }
+
   /* Needs to be first to have an OpenGL context bound. */
   DRW_opengl_context_create();
 
@@ -572,14 +576,6 @@ void WM_exit_ex(bContext *C, const bool do_python)
 
   BLF_exit();
 
-  if (opengl_is_init) {
-    DRW_opengl_context_enable_ex(false);
-    GPU_pass_cache_free();
-    GPU_exit();
-    DRW_opengl_context_disable_ex(false);
-    DRW_opengl_context_destroy();
-  }
-
   BLT_lang_free();
 
   ANIM_keyingset_infos_exit();
@@ -604,13 +600,24 @@ void WM_exit_ex(bContext *C, const bool do_python)
 
   ED_file_exit(); /* for fsmenu */
 
-  UI_exit();
+  /* Delete GPU resources and context. The UI also uses GPU resources and so
+   * is also deleted with the context active. */
+  if (opengl_is_init) {
+    DRW_opengl_context_enable_ex(false);
+    UI_exit();
+    GPU_pass_cache_free();
+    GPU_exit();
+    DRW_opengl_context_disable_ex(false);
+    DRW_opengl_context_destroy();
+  }
+  else {
+    UI_exit();
+  }
+
   BKE_blender_userdef_data_free(&U, false);
 
   RNA_exit(); /* should be after BPY_python_end so struct python slots are cleared */
 
-  GPU_backend_exit();
-
   wm_ghost_exit();
 
   CTX_free(C);
diff --git a/source/blender/windowmanager/intern/wm_window.c b/source/blender/windowmanager/intern/wm_window.c
index 36f91f8414a..d2182f759e5 100644
--- a/source/blender/windowmanager/intern/wm_window.c
+++ b/source/blender/windowmanager/intern/wm_window.c
@@ -1148,7 +1148,6 @@ static bool ghost_event_proc(GHOST_EventHandle evt, GHOST_TUserDataPtr C_void_pt
          */
         GHOST_TEventKeyData kdata = {
             .key = GHOST_kKeyUnknown,
-            .ascii = '\0',
             .utf8_buf = {'\0'},
             .is_repeat = false,
         };
@@ -1363,6 +1362,11 @@ static bool ghost_event_proc(GHOST_EventHandle evt, GHOST_TUserDataPtr C_void_pt
         event.type = MOUSEMOVE;
         event.val = KM_NOTHING;
         copy_v2_v2_int(event.prev_xy, event.xy);
+
+        wm_cursor_position_from_ghost_screen_coords(win, &ddd->x, &ddd->y);
+        event.xy[0] = ddd->x;
+        event.xy[1] = ddd->y;
+
         event.flag = 0;
 
         /* No context change! C->wm->windrawable is drawable, or for area queues. */
diff --git a/source/blender/windowmanager/wm_event_types.h b/source/blender/windowmanager/wm_event_types.h
index 2d3624704d0..edac3ada73b 100644
--- a/source/blender/windowmanager/wm_event_types.h
+++ b/source/blender/windowmanager/wm_event_types.h
@@ -358,12 +358,6 @@ enum {
 /** Test whether the event is timer event. */
 #define ISTIMER(event_type) ((event_type) >= TIMER && (event_type) <= TIMERF)
 
-/* for event checks */
-/* only used for KM_TEXTINPUT, so assume that we want all user-inputtable ascii codes included */
-/* Unused, see #wm_eventmatch, see: T30479. */
-// #define ISTEXTINPUT(event_type)  ((event_type) >= ' ' && (event_type) <= 255)
-/* NOTE: an alternative could be to check `event->utf8_buf`. */
-
 /** Test whether the event is a key on the keyboard (including modifier keys). */
 #define ISKEYBOARD(event_type) \
   (((event_type) >= _EVT_KEYBOARD_MIN && (event_type) <= _EVT_KEYBOARD_MAX) || \
diff --git a/source/tools b/source/tools
-Subproject 01b4c0e4a172819414229445c314be34527bf41
+Subproject da8bdd7244c7b6c2eadf4c949ff391d0cc43027
diff --git a/tests/python/CMakeLists.txt b/tests/python/CMakeLists.txt
index 38c3fc4389a..d95f2cd2644 100644
--- a/tests/python/CMakeLists.txt
+++ b/tests/python/CMakeLists.txt
@@ -102,6 +102,11 @@ add_blender_test(
 )
 
 add_blender_test(
+  script_pyapi_bpy_driver_secure_eval
+  --python ${CMAKE_CURRENT_LIST_DIR}/bl_pyapi_bpy_driver_secure_eval.py
+)
+
+add_blender_test(
   script_pyapi_idprop
   --python ${CMAKE_CURRENT_LIST_DIR}/bl_pyapi_idprop.py
 )
diff --git a/tests/python/bl_pyapi_bpy_driver_secure_eval.py b/tests/python/bl_pyapi_bpy_driver_secure_eval.py
new file mode 100644
index 00000000000..953dbcd5381
--- /dev/null
+++ b/tests/python/bl_pyapi_bpy_driver_secure_eval.py
@@ -0,0 +1,220 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+# ./blender.bin --background -noaudio --python tests/python/bl_pyapi_bpy_driver_secure_eval.py -- --verbose
+import bpy
+import unittest
+import builtins
+from types import ModuleType
+
+
+# -----------------------------------------------------------------------------
+# Mock Environment
+
+
+expect_unreachable_msg = "This function should _NEVER_ run!"
+# Internal check, to ensure this actually runs as expected.
+expect_unreachable_count = 0
+
+
+def expect_os_unreachable():
+    global expect_unreachable_count
+    expect_unreachable_count += 1
+    raise Exception(expect_unreachable_msg)
+
+
+__import__("os").expect_os_unreachable = expect_os_unreachable
+
+
+expect_open_unreachable_count = 0
+
+
+def open_expect_unreachable(*args, **kwargs):
+    global expect_open_unreachable_count
+    expect_open_unreachable_count += 1
+    raise Exception(expect_unreachable_msg)
+
+
+mock_builtins = {**builtins.__dict__, **{"open": open_expect_unreachable}}
+
+
+# -----------------------------------------------------------------------------
+# Utility Functions
+
+
+def is_expression_secure(expr_str, verbose):
+    """
+    Return (ok, code) where ok is true if expr_str is considered secure.
+    """
+    # Internal function only for testing (not part of the public API).
+    from _bpy import _driver_secure_code_test
+    expr_code = compile(expr_str, "<is_expression_secure>", 'eval')
+    ok = _driver_secure_code_test(expr_code, verbose=verbose)
+    return ok, expr_code
+
+
+# -----------------------------------------------------------------------------
+# Tests (Accept)
+
+
+class _TestExprMixIn:
+    """
+    Sub-classes must define:
+    - expressions_expect_secure: boolean, the expected secure state.
+    - expressions: A sequence of expressions that must evaluate in the driver name-space.
+
+    Optionally:
+    - expressions_expect_unreachable:
+      A boolean, when true, it's expected each expression should call
+    ``expect_os_unreachable`` or ``expect_open_unreachable``.
+    """
+
+    # Sub-class may override.
+    expressions_expect_unreachable = False
+
+    def assertSecure(self, expect_secure, expr_str):
+        is_secure, expr_code = is_expression_secure(
+            expr_str,
+            # Only verbose when secure as this is will result in an failure,
+            # in that case it's useful to know which op-codes caused the test to unexpectedly fail.
+            verbose=expect_secure,
+        )
+        if is_secure != expect_secure:
+            raise self.failureException(
+                "Expression \"%s\" was expected to be %s" %
+                (expr_str, "secure" if expect_secure else "insecure"))
+        # NOTE: executing is not essential, it's just better to ensure the expressions make sense.
+        try:
+            exec(
+                expr_code,
+                {"__builtins__": mock_builtins},
+                {**bpy.app.driver_namespace, **{"__builtins__": mock_builtins}},
+            )
+            # exec(expr_code, {}, bpy.app.driver_namespace)
+            ex = None
+        except BaseException as ex_test:
+            ex = ex_test
+
+        if self.expressions_expect_unreachable:
+            if ex and ex.args == (expect_unreachable_msg,):
+                ex = None
+            elif not ex:
+                raise self.failureException("Expression \"%s\" failed to run `os.expect_os_unreachable`" % (expr_str,))
+            else:
+                # An unknown exception was raised, use the exception below.
+                pass
+
+        if ex:
+            raise self.failureException("Expression \"%s\" failed to evaluate with error: %r" % (expr_str, ex))
+
+    def test_expr(self):
+        expect_secure = self.expressions_expect_secure
+        for expr_str in self.expressions:
+            self.assertSecure(expect_secure, expr_str)
+
+
+class TestExprMixIn_Accept(_TestExprMixIn):
+    expressions_expect_secure = True
+
+
+class TestExprMixIn_Reject(_TestExprMixIn):
+    expressions_expect_secure = False
+
+
+class TestAcceptLiteralNumbers(unittest.TestCase, TestExprMixIn_Accept):
+    expressions = ("1", "1_1", "1.1", "1j", "0x1", "0o1", "0b1")
+
+
+class TestAcceptLiteralStrings(unittest.TestCase, TestExprMixIn_Accept):
+    expressions = ("''", "'_'", "r''", "r'_'", "'''_'''")
+
+
+class TestAcceptSequencesEmpty(unittest.TestCase, TestExprMixIn_Accept):
+    expressions = ("()", "[]", "{}", "[[]]", "(())")
+
+
+class TestAcceptSequencesSimple(unittest.TestCase, TestExprMixIn_Accept):
+    expressions = ("('', '')", "['', '_']", "{'', '_'}", "{'': '_'}")
+
+
+class TestAcceptSequencesExpand(unittest.TestCase, TestExprMixIn_Accept):
+    expressions = ("(*('', '_'),)", "[*(), *[]]", "{*{1, 2}}")
+
+
+class TestAcceptSequencesComplex(unittest.TestCase, TestExprMixIn_Accept):
+    expressions = ("[1, 2, 3][-1:0:-1][0]", "1 in (1, 2)", "False if 1 in {1, 2} else True")
+
+
+class TestAcceptMathOperators(unittest.TestCase, TestExprMixIn_Accept):
+    expressions = ("4 / 4", "4 * 4", "4 // 4", "2 ** 2", "4 ^ -1", "4 & 1", "4 % 1")
+
+
+class TestAcceptMathFunctionsSimple(unittest.TestCase, TestExprMixIn_Accept):
+    expressions = ("sin(pi)", "degrees(pi / 2)", "clamp(4, 0, 1)")
+
+
+class TestAcceptMathFunctionsComplex(unittest.TestCase, TestExprMixIn_Accept):
+    expressions = ("-(sin(pi) ** 2) / 2", "floor(22 / 7)", "ceil(pi + 1)")
+
+
+# -----------------------------------------------------------------------------
+# Tests (Reject)
+
+class TestRejectLiteralFStrings(unittest.TestCase, TestExprMixIn_Reject):
+    # F-String's are not supported as `BUILD_STRING` op-code is disabled,
+    # while it may be safe to enable that needs to be double-checked.
+    # Further it doesn't seem useful for typical math expressions used in drivers.
+    expressions = ("f''", "f'{1}'", "f'{\"_\"}'")
+
+
+class TestRejectModuleAccess(unittest.TestCase, TestExprMixIn_Reject):
+    # Each of these commands _must_ run `expect_os_unreachable`,
+    # and must also be rejected as insecure - otherwise we have problems.
+    expressions_expect_unreachable = True
+    expressions = (
+        "__import__('os').expect_os_unreachable()",
+        "exec(\"__import__('os').expect_os_unreachable()\")",
+        "(globals().update(__import__('os').__dict__), expect_os_unreachable())",
+    )
+
+    # Ensure the functions are actually called.
+    def setUp(self):
+        self._count = expect_unreachable_count
+
+    def tearDown(self):
+        count_actual = expect_unreachable_count - self._count
+        count_expect = len(self.expressions)
+        if count_actual != count_expect:
+            raise Exception(
+                "Expected 'os.expect_os_unreachable' to be called %d times but was called %d times" %
+                (count_expect, count_actual),
+            )
+
+
+class TestRejectOpenAccess(unittest.TestCase, TestExprMixIn_Reject):
+    # Each of these commands _must_ run `expect_open_unreachable`,
+    # and must also be rejected as insecure - otherwise we have problems.
+    expressions_expect_unreachable = True
+    expressions = (
+        "open('file.txt', 'r')",
+        "exec(\"open('file.txt', 'r')\")",
+        "(globals().update({'fake_open': __builtins__['open']}), fake_open())",
+    )
+
+    # Ensure the functions are actually called.
+    def setUp(self):
+        self._count = expect_open_unreachable_count
+
+    def tearDown(self):
+        count_actual = expect_open_unreachable_count - self._count
+        count_expect = len(self.expressions)
+        if count_actual != count_expect:
+            raise Exception(
+                "Expected 'open' to be called %d times but was called %d times" %
+                (count_expect, count_actual),
+            )
+
+
+if __name__ == '__main__':
+    import sys
+    sys.argv = [__file__] + (sys.argv[sys.argv.index("--") + 1:] if "--" in sys.argv else [])
+    unittest.main()