Cycles: merge of cycles-x branch, a major update to the renderer

This includes much improved GPU rendering performance, viewport interactivity,
new shadow catcher, revamped sampling settings, subsurface scattering anisotropy,
new GPU volume sampling, improved PMJ sampling pattern, and more.

Some features have also been removed or changed, breaking backwards compatibility.
Including the removal of the OpenCL backend, for which alternatives are under
development.

Release notes and code docs:
https://wiki.blender.org/wiki/Reference/Release_Notes/3.0/Cycles
https://wiki.blender.org/wiki/Source/Render/Cycles

Credits:
* Sergey Sharybin
* Brecht Van Lommel
* Patrick Mours (OptiX backend)
* Christophe Hery (subsurface scattering anisotropy)
* William Leeson (PMJ sampling pattern)
* Alaska (various fixes and tweaks)
* Thomas Dinges (various fixes)

For the full commit history, see the cycles-x branch. This squashes together
all the changes since intermediate changes would often fail building or tests.

Ref T87839, T87837, T87836
Fixes T90734, T89353, T80267, T80267, T77185, T69800

1 files changed, 9 insertions, 10 deletions

diff --git a/source/blender/makesdna/DNA_scene_types.h b/source/blender/makesdna/DNA_scene_types.h
index f2244b4ae61..b28c3ac2b85 100644
--- a/source/blender/makesdna/DNA_scene_types.h
+++ b/source/blender/makesdna/DNA_scene_types.h
@@ -261,7 +261,7 @@ typedef enum eScenePassType {
   SCE_PASS_UNUSED_3 = (1 << 4), /* SPEC */
   SCE_PASS_SHADOW = (1 << 5),
   SCE_PASS_AO = (1 << 6),
-  SCE_PASS_UNUSED_4 = (1 << 7), /* REFLECT */
+  SCE_PASS_POSITION = (1 << 7),
   SCE_PASS_NORMAL = (1 << 8),
   SCE_PASS_VECTOR = (1 << 9),
   SCE_PASS_UNUSED_5 = (1 << 10), /* REFRACT */
@@ -293,6 +293,7 @@ typedef enum eScenePassType {
 #define RE_PASSNAME_COMBINED "Combined"
 #define RE_PASSNAME_Z "Depth"
 #define RE_PASSNAME_VECTOR "Vector"
+#define RE_PASSNAME_POSITION "Position"
 #define RE_PASSNAME_NORMAL "Normal"
 #define RE_PASSNAME_UV "UV"
 #define RE_PASSNAME_EMIT "Emit"
@@ -592,7 +593,7 @@ typedef enum eBakeSaveMode {
 /** #BakeData.pass_filter */
 typedef enum eBakePassFilter {
   R_BAKE_PASS_FILTER_NONE = 0,
-  R_BAKE_PASS_FILTER_AO = (1 << 0),
+  R_BAKE_PASS_FILTER_UNUSED = (1 << 0),
   R_BAKE_PASS_FILTER_EMIT = (1 << 1),
   R_BAKE_PASS_FILTER_DIFFUSE = (1 << 2),
   R_BAKE_PASS_FILTER_GLOSSY = (1 << 3),
@@ -653,7 +654,8 @@ typedef struct RenderData {
   /**
    * render tile dimensions
    */
-  int tilex, tiley;
+  int tilex DNA_DEPRECATED;
+  int tiley DNA_DEPRECATED;
 
   short planes DNA_DEPRECATED;
   short imtype DNA_DEPRECATED;
@@ -764,13 +766,10 @@ typedef struct RenderData {
   /* Cycles baking */
   struct BakeData bake;
 
-  int preview_start_resolution;
+  int _pad8;
   short preview_pixel_size;
 
-  /* Type of the debug pass to use.
-   * Only used when built with debug passes support.
-   */
-  short debug_pass_type;
+  short _pad4;
 
   /* MultiView */
   /** SceneRenderView. */
@@ -1887,12 +1886,12 @@ enum {
 #define R_COMP_CROP (1 << 7)
 #define R_SCEMODE_UNUSED_8 (1 << 8) /* cleared */
 #define R_SINGLE_LAYER (1 << 9)
-#define R_EXR_TILE_FILE (1 << 10)
+#define R_SCEMODE_UNUSED_10 (1 << 10) /* cleared */
 #define R_SCEMODE_UNUSED_11 (1 << 11) /* cleared */
 #define R_NO_IMAGE_LOAD (1 << 12)
 #define R_SCEMODE_UNUSED_13 (1 << 13) /* cleared */
 #define R_NO_FRAME_UPDATE (1 << 14)
-#define R_FULL_SAMPLE (1 << 15)
+#define R_SCEMODE_UNUSED_15 (1 << 15) /* cleared */
 #define R_SCEMODE_UNUSED_16 (1 << 16) /* cleared */
 #define R_SCEMODE_UNUSED_17 (1 << 17) /* cleared */
 #define R_TEXNODE_PREVIEW (1 << 18)