Blender Git Loki

Fix T65741: Removing a GPencil Object's Material Slot deletes the strokes assigned to it

This was a design decision, but now we have decided to change it using the active material for the strokes using deleted material.

If the material slot is empty a new material is created to keep the strokes visible.

Merge branch 'master' into soc-2019-bevel-profiles

Progress and debugging code for orientation regularization traveling

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

# Conflicts:
# release/datafiles/locale
# release/scripts/addons
# release/scripts/addons_contrib

LANPR: Use root bounding area to allow longer chaining (need workarounds.)

Fix T64930: FFmpeg Output- no color mode by default

The issue was that the valid color modes was checked on the old image
format, not the new one. So if you switched formats it would not
correctly check if the settings were valid.

Merge remote-tracking branch 'origin/master' into soc-2019-cycles-procedural

LANPR: Chain connection is now working properly

Transform Snap: When snapping to curve's vertices, consider only the original elements.

When they are occluded or when the snap is done for the generated meshes vertices, it was inconvenient.
An ideal solution needs to be discussed, but for now, for vertices, keep the behavior similar to the pre 2.8 versions.

Fix T65751: Mask Parenting does not work

Initial implementation of White Noise node

LANPR: Chain connection working.

Cloth: split face to triangles test

It works for meshes that have convex uv layouts, otherwise goes into an infinite loop

Fix T65750: Masking crash with Add Feather Vertex and Slide

Add some more timing & more useful temp logging

Fix T64710: Rigid body stops simulating when an object is selected

Need to preserve last evaluated time through copy-on-write process.

LANPR: Chain image space connection (not working yet)

Support DirectX Ghost context creation

Adds support for creating a DirectX 11 Ghost context. It's not used yet
and more stuff besides creation is needed. Also, other versions than 11
should probably be supported.
We need a DirectX context to support the Windows Mixed Reality OpenXR
Runtime, a rather important one to support. Idea is to use an extension
for OpenGL-DirectX interoperability for drawing the OpenGL offscreen
viewport render using DirectX.

WM: re-enable auto-save after loading the users preferences

Minor change, only apples when loading factory settings,
then reverting to saved.

Cleanup: --help doc string formatting

STRINGIFY macro was being split across lines
causing problems extracting the strings for the references manual.