Blender Git Loki

Merge branch 'master' into soc-2020-fluid-tools

LANPR: Removed excessive scene relationship in updateDepsgraph.

LANPR: show strokes when rendering.

Cleanup: Fix small typo error

Add null check for poly_smooth_groups array.

Merge branch 'master' into greasepencil-edit-curve

Merge branch 'master' into greasepencil-object

GPencil: Cleanup some comments typo

GPencil: Cleanup code - move functions

Merge branch 'master' into soc-2020-io-performance

Support multiple smooth groups and bitflags

For uniformity, removed `const MPoly &mpoly` from `write_vertex_groups`
and `write_poly_material`, and replaced it with poly_index. And use
`get_ith_poly` to get the polygon needed.

Removed `is_shaded_smooth`. It was wrong to compare an object level
flag with a polygon level flag. Replaced its usage with
`tot_smooth_groups()`.

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Merge branch 'master' into greasepencil-edit-curve

GPencil: Apply GSoC changes

Merge branch 'master' into greasepencil-object

Merge remote-tracking branch 'origin/master' into lanpr-under-gp

# Conflicts:
# source/blender/blenkernel/intern/gpencil.c

Outliner modifier drop

Initial implementation. Experimentation to see what types of data
are needed.

UI: Attempt to fix OSX widget shader issue

Some OSX GL driver implementation needs a dummy vbo read. This fixed issues
with the Hair shaders in the past.

Related to T78307

Cleanup: spelling

Fix T78433: Adding Fade Generates Python Exception

This was caused by typo in rB67a822e08684.