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9 Commits

Author SHA1 Message Date
Sergey Sharybin
f806bd8261 Fix T91861: Black environment behind shadow catcher 
Always sample background pass behind shadow catcher (if the pass
exists, of course), regardless of whether shadow catcher will be
used as approximate or accurate.

Allows to combine accurate shadows into an environment map.

Differential Revision: https://developer.blender.org/D12747
 2021-10-04 15:07:32 +02:00
Brecht Van Lommel
fc4886a314 Fix T91894: Cycles baking normal maps of transformed objects not working 2021-10-04 13:58:37 +02:00
Brecht Van Lommel
4d4113adc2 Cycles: record large number of transparent shadow intersections on CPU 
So we can do fewer intersection calls, only on the GPU do we need to save
memory and do this in small steps.

Ref T87836
 2021-09-29 16:37:32 +02:00
Brecht Van Lommel
ed541de29d Fix T91626: Cycles sss behind fully transparent object renders differently 2021-09-23 18:32:30 +02:00
Brecht Van Lommel
6279efbb78 Fix Cycles compiler warning on GCC 11 
For shadow rays there are no closures, leave out the closure merging code
there to avoid warnings about accessing closure memory that does not exist.
 2021-09-23 17:48:16 +02:00
Brecht Van Lommel
204b01a254 Fix T91590: Cycles specular baking not using smooth normal 2021-09-22 16:08:45 +02:00
Brecht Van Lommel
53e7c64be7 Fix T91597: Cycles volume scatter visibility on lights not working 2021-09-22 16:08:45 +02:00
Campbell Barton
4d66cbd140 Cleanup: spelling in comments 2021-09-22 14:54:01 +10:00
Brecht Van Lommel
0803119725 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
 2021-09-21 14:55:54 +02:00