Blender Git Loki

GPencil: Free poly weights when curve is updated

The poly weights should be freed when the stroke is converted to type
bezier or when the curve is refitted. This makes sure that we do not
leak the weight memory later.

GPencil: Cleanup armature deform code

Basic operator to update the Scene frame range from an Alembic cache.

USD IO: enable USD preview conversion by default.

Setting generate_preview_surface, import_usd_preview and
set_material_blend options to true by default, to enable
conversion to and from USD preview surface materials.

USD Export: setting color space.

Now setting color space input on UsdUVTexture shader.

USD Export: USD preview opacity bug.

Fixed bug setting UsdPreviewSurface opacity input value.

Fix build error with include

Object: Flash objects on mode transfer

Cycles: Make OptiX device compilable

- Follows the regular structure of CPU and CUDA directory.
- Use Cycles-style comment style, use explicit code blocks when
was easy to spot.
- Use common implementation of CUDAContextScope.
- Remove calls from header which were removed from other devices.
- Comment out all implementation methods.

All in all, this is a CUDA device at this time. The actual OptiX
parts will be brought back as a followup development.

USD Export: material mapping fix.

Now mapping the Alpha socket to the UsPreviewSurface
opacity input.

Merge branch 'master' into sculpt-dev

Merge branch 'usd-importer-T81257-merge' of https://gitlab-master.nvidia.com/omniverse/blender into omniverse

USD Import: Convert to Z Up true by default.

Changed the Convert to Z Up option to be true by default.

GPencil: Fill memory leak

Still some memory is leaking

USD Import: handle sourceColorSpace.

When converting UsdUVTexture shaders, now querying the
shader's sourceColorSpace input, in addition to the
color space metadata of the file input.

Cycles: Fix dependency cycle between device update and scheduler

Scheduler needs to know adaptive sampling settings, the device
update needs to know scheduled resolution divider, and the old
adaptive sampling code was using fields which are only available
after device update.

This change fixes this dependency.

The downside is that there is no more check for existence of AUX
pass. Assume that the session is in consistent state and that when
adaptive sampling is enabled toe AUX pass exists.

Cycles: Make render scheduler aware of headless mode

Allows to use scheduling which is more optimal for headless.

Cycles: Ensure adaptive sampling never exceeds number of requested samples

Cycles: Use better scheduling when headless

- Never do display updates.
- Render as many samples as possible within 30 sec intervals.

With adaptive sampling enabled number of samples to be rendered is
aligned with adaptive sampling filtering.

This brings render time of classroom_gpu in command line from 90 to 80
seconds.

Cleanup: Change variable names