Blender Git Loki

Fix UI (and code!) typos.

Cleanup: check the space type instead of the operators poll function

The poll function may fail for reasons other than the space type,
as this menu is selected based on space-type, check this instead.

RNA: rename recently added line-art properties

- Use `use_` prefix for boolean properties.
- Use `_all` instead of `_everything`,
following existing conventions and the properties UI text.
- Use `object_instances` instead of old term `dupli` / `duplication`.
- Use `clip_plane` instead of `clipping_boundaries`,
matching the RegionView3D property naming.

RNA: use boolean array for transarency masks

There is no need to expose this as multiple properties,
also use `use_` prefix for boolean properties.

Allows deltas whose magnitudes are greater that 1.0.

Fix crashes caused by reading non-existent data

The index_data_map was not swaped with the rest of the data, and there
was no indication that the first frame does no have min/max data for the
delta range.

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

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

Cleanup: spelling, expand on comments

Cleanup: clang-format

Revert "Disable clang-format for objective-C bits in GHOST."

This reverts commit 1cb9612d736f8513d7d4cfc01da6c4e386efcc4f.

We can now rely on the clang-format version as it's distributed
with pre-compiled binaries.

Cleanup: disable clang-format for 'intern/libmv/third_party' headers

Cleanup: clang-format, trailing space

Minor manual tweak to prevent wrapping an array into columns.

USD Import: uv fixes.

Added logic to handle the case where the st primvar
is a float2 array. Simplified the conditionals for
readability. Now only considering UVs when checking
for animating primvars.

USD IO: Merging latest importer code.

USD Export: format fixes.

Cleanup: Don't use class method to override equality operator

This won't make a difference in this case, but it's consider better
practice since there is no vagueness about implicit conversion.

USD Export: code cleanup.

Moved shader node functions out of usd_util.(h|cc), since
these files will be removed. However, the appropriate
place for these functions is yet to be determined and
should be considered further, since this is duplicate
code of currently inaccessible functions in other files.

USD Export: Code cleanup.

Moved usd_define_or_over() to usd_writer_matrial.h, since
util.h will be removed.

* Added a new CustomData type for dyntopo vertex data: MDynTopoVert.
It stores:
- Original coordiates, colors and mask (which were previously four
seperate layers).
- A bitmask with (currently) one bitflag, whether or not a vertex is
on a boundary.

I needed to cache calculating vertex boundary state (which involves
iterating over the edges surrounding a vertex) and got fed up with
having so many CD layers for dyntopo. This struct consolidates them
and saves having yet another layer just to store a flag.