Blender Git Commits

Cleanup: GPencil: Remove duplicated code

GPencil: Refactor: Add support for layer blending

This break the compatibility of old blend files as the old implementation
was done incorrectly.

With new implementation, the layer blending can affect multiple object
and in certain case affect even the rendered background. Old implementation
was only affecting the layers beneath, not other objects.

This implementation is also ready to support vfx on top.

Some blend modes (divide and subtract) have some limitations. They cannot
be propagated to other objects. This is because we would need to use
signed float buffers everywhere (for background render) so that fixed
function blending does not clamp the blending values.

DRW: Add subtract blend logic

This is to support subtract blending with Multiple Render Targets

GPU: Framebuffer: Add GPU_framebuffer_multi_clear

This is to clear individual targets using a different color.

GPencil: Refactor: Add offscreen compositing foundation

This put all Grease pencil drawing into a separate buffer that is then
composited on top of the rendered image.

This framebuffer has 2 RGB color target (one color and one alpha) to be
able to record any color blend types.

Moreover these buffers are floating point (R11_G11_B10) which will allow
the use of linear colors.

Merge branch 'master' into functions

Fix memory leak when closing Blender while VR session runs

Fix crash on undo or file load with running VR session

Merge branch 'greasepencil-object' into greasepencil-refactor

Conflicts:
source/blender/blenloader/intern/versioning_280.c

Merge branch 'master' into greasepencil-object

Codesign: Implement buildbot worker side DMG bundling

Is based on bundle.sh but is adopted to an environment where
codesigning is happening in a dedicated VM.

Also fixed some code from previous commits:

- Removed debug only early output when running commands
- Ensured that path to git is always valid
(wasn't a case when __file__ is relative to current directory).
- Fixed simple code signer which couldn't have imported util.

Allow querying VR session viewer location from Python

Not 100% sure if the output coordinates are correct, only did quick
testing of that. I'm just slowly working towards the virtual camera
feature for a regular viewport.

Also fix compile in Windows error with previous commit.

Fix two memory leaks in OpenGL Linux (X11) graphics binding

USD: copy JSON files to datafiles/usd

Previously it copied to datafiles/usd/usd.

Merge remote-tracking branch 'origin/master' into temp-lanpr-review

FIXES for rebase

USD: mark the exporter as Experimental feature

This will allow us to merge the USD exporter into master before it's
completely finished.

USD: Report progress on a frame basis and with less guesswork

USD: set Linux-specific #define only on Linux

USD: private indicators

No functional changes.