Blender Git Loki

Support heading in row layouts too - `uiLayout.row(heading="FOO")`

Use property split layout for sculpt symmetry options

Meant as an example of how to do this with Python. Wasn't possible
without a broken layout until the previous commit.

Fix more cases of recursive property splitting

A bit hacky, but we have to disable the `use_property_split` flag for a
row after adding the split layout to prevent it from further splitting
when adding more items. If these new items actually add multiple buttons
(vector items), these should be placed in a column like before (by
accident?). E.g. that's how the translate buttons (a vector item) is
aligned with the lock icons (another vector item).

Cleanup: clang-format

Cycles/Optix: Support building the optix kernels on demand.

CMake: `WITH_CYCLES_DEVICE_OPTIX` did not respect `WITH_CYCLES_CUDA_BINARIES` causing the optix kernel to be always build at build time.

Code: `device_optix.cpp` did not count on the optix kernel not existing in the default location.

For this to work, one should have before starting blender

1) working nvcc environment
2) Optix SDK installed and the OPTIX_ROOT_DIR environment variable pointing to it which is not set by default

Differential Revision: https://developer.blender.org/D7400

Reviewed By: Brecht

GPencil: Fix unreported missing update after removing stroke from python

Sanitize and cleanup a bit depsgraph relations building in some modifiers.

This commit mainly:
* Removes some uneeded dependencies to geometry of other objects (since
we only use positions of those objects...).
* Ensures `DEG_add_modifier_to_transform_relation` is only called once
per modifier (in one case at least it could be called twice).
* For modifiers using texture mask, only add dependencies to object used
to generate texture coordinates when there is actually a texture set.

No behavior change expected from this commit...

Factorize some common modifiers depsgraph relation update code.

Add a utility to deal with common 'object or posebone transform' case.

Use column heading for Bevel tool settings

Use checkbox+value for Text Editor

Revert "GPUViewport: Use GPUBatch for viewport drawing"

This reverts commit 862ec829422241878b3345661476d8551935aed2. It causes crashes
on some systems, see T75584.

Modifier UI: separate the Apply/Shape/Copy buttons visually from the modifier controls

Also make these items smaller, to de-emphasize them.

Use checkbox+value configuration for Decimate modifier UI layout

Merge branch 'master' into greasepencil-object

Revert mistake in Sculpt Symmetry panel

Add checkbox+value configuration many places where applicable

Update Vertex Weight Edit modifier UI layout

Fix for T75595: File Browser and Windows Unicode Paths

Fix for incorrect conversion to utf16 in BLI_file_attributes().

Differential Revision: https://developer.blender.org/D7398

Reviewed by Brecht Van Lommel

Add UI for recently added bone properties

Merge branch 'master' into modifier-panels-ui