Blender Git Loki

anonymous attribute fields

initial anonymous attributes implementation

USD import: remove placeholder bezier curve code

The placeholder code for the unimplemented functionality
of importing bezier curves was causing a crash. It has
been removed until support for beziers can be properly
added.

Updated USDMeshReader comments

USD import: update copyright notices

Merge branch 'master' into soc-2021-curve-fillet

Cycles X: restore CPU sampling profiler

Stats now reflect the new kernels. Also change implementation to unset active
shader and object, previously there were some hard to verify assumptions about
for which kernels we can assume they are correctly set.

Differential Revision: https://developer.blender.org/D12042

USD export: improve stage creation error message

When stage creation fails, now notifying user if the
export path is already open in a USD layer,
possibly because the USD is being referenced by
modifiers and can't be overwritten.

Fix count attribute pass through to lower level functions.

Fixes for pass handling in Cycles X

- Register Shadow Catcher pass as 3-component RGB color.
Matches the way how it is stored, solving uninitialized alpha channel.

- Don't write alpha channel in denoiser when the denoising input is a
3-component color pass.

- Add safety asserts in the film conversion kernels.

Differential Revision: https://developer.blender.org/D12078

Cycles X: fix/improve handling of mismatches between render pass components

Rules are as follows now:
* Single channel pass: can be read into buffer with 1, 3 or 4 channels
* Motion and cryptomatte passes: must be read into buffer with 4 channels
* RGB, RGBA and vector passes: can be read into buffer with 3 or 4 channels

Differential Revision: https://developer.blender.org/D12063

Merge branch 'master' into asset-greasepencil

Conflicts:
source/blender/editors/render/render_preview.c

Compositor: Full frame Set Alpha node

Adds full frame implementation to this node operations.
No functional changes.

Merge branch 'master' into cycles-x

Merge branch 'master' into cycles-x

Merge remote-tracking branch 'origin/master' into temp-lineart-contained

Compositor: Full frame Color Ramp node

Adds full frame implementation to this node operation.
No functional changes.

Compositor: Full frame Hue Saturation Value node

Adds full frame implementation to this node operation.
No functional changes.

Compositor: Full frame Tonemap node

Adds full frame implementation to this node operations.
No functional changes.

Merge branch 'master' into soc-2021-curves