Blender Git Loki

GPencil: Change step for Mix factors

The old step value was too high.

Mantaflow: Clang format previous commit

Mantaflow: Fixed more issues raised in part 8 of the review (D3857)

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

USD: set Linux-specific #define only on Linux

fix compile error

Merge branch 'greasepencil-object' into greasepencil-refactor

Merge branch 'master' into greasepencil-object

GPencil: Remove Checker Fill mode

This mode is redundant with textures and only adds complexity for something that can be solved easily using a checker texture.

Also, old files are patched as SOLID fill.

USD: private indicators

No functional changes.

USD: use LISTBASE_FOREACH

No functional changes.

USD: renamed 'xform' to 'transform'

Sergey and I don't agree on 'tfm' vs. 'xform', so I just chose to not to
use either and avoid abbreviating altogether.

USD: moved all code into C++ namespace 'USD'

USD: clarified comment about defining _GLIBCXX_PERMIT_BACKWARD_HASH

USD: Fix exporting of meshes of dupli-objects

The dupliobject's `base_flag` variable needed to be copied from its
duplicator.

Cleanup: USD: clarified a comment

USD: pass data from invoke() to execute() in a struct

This makes the code somewhat more complex, but more explicit and
future-proof as well.

USD: properly mark unused variable

Depsgraph: add missing #include to DEG_depsgraph_query.h

The `DEG_depsgraph_query.h` file uses the `ITER_BEGIN` and `ITER_END`
macros defined in `BLI_iterator.h` without including that header.

No functional changes.

USD: Store BKE_main_blendfile_path(bmain) in a variable