Blender Git Loki

Abstracted some code for moving towards collection instances

Cloth: Improved split edges significantly

Now it sorts the bad edges based on the size and then splits the edges. This ensures proper size and aspect ratio of the triangles.

Cleanup: correct wireframe xray flag name

Revert part of d56c0a0a6affcdfd7335c

Cleanup: clang-format

Cleanup: tweak logic for skipping modules

Startup is the special case, so match against this instead of 'modules'.

Fix mistake causing compiler error on Windows

Stupid one...

Cloth: support for UVs during obj export

Merge branch 'master' into soc-2019-openxr

Refactor graphics context binding to avoid memory leaks

* Retrieve graphics context to bind through callbacks so the XR code can
manage their lifetime.
* Use static union to store system & chosen graphics lib specific
graphics binding data.

Makes some things a bit cleaner, too.

Hide from UI overridable option for custom properties.

Fix compile error and warning on GCC

Cloth: obj export support
Done for testing purposes, export out the meshes as obj and render the obj sequence separately
Current limitation: only upto 6 verts per face supported, easy to add more but mesh should stay triangulated for the most part

Removed unused includes

Reorganising the USD exporter to be more like the Alembic one

Fix T57489: Texture coordinate object reference not updating in Eevee

GPencil: Fix clamp alpha problems when using Regular blend

The problem was the alpha was not premult and the opacity factor was applied two times.

Typos in description

Merge remote-tracking branch 'origin/master' into soc-2019-fast-io

Merge branch 'master' into greasepencil-object

Compositor: fix linear feather falloff in dilate/erode node

The bug only affected debug builds.