Blender Git Loki

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

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

Merge branch 'master' into soc-2020-outliner

Outliner: Add walk navigation left and right

Support walk navigation up and down the tree by pressing the left and
right arrows. When holding shift (to toggle expand/collapse on all
children) walking is never done.

When walking right, open the tree if it is closed, or walk into the tree
if it is opened. When walking left, close the tree if it is open, or
select the parent element when closed.

Outliner: Try using radio button icons

Use radio button icons over the dot and check in the outliner.

Outliner: Pass tselem instead of te to button functions

When adding callback functions to icon buttons in the outliner, don't
pass the tree element as a pointer because the pointer address changes
between redraws. Instead, pass the tree store element, or pass the data
that is needed.

A lot of progress towards working boolean library function.

The code to partition space into cells is mostly done.
The code to propagate winding numbers and flag cells according to the
boolean function is mostly done.
Only final extraction code is left, and a few other things.

Custom Menu : Add box and item buttons

Review: added comments, doc strings, improvements, support for random vertices

update api a bit

cache working but lots of copies

Comment about mvert normals memory allocation.

Readability: Replace integers to indicate axes with AXIS_{X,Y,Z}.

Consistency: Use uint with indices, like the vectors of the indices
themselves.

Merge branch 'master' into greasepencil-object

EEVEE: Motion Blur: Randomize velocity tile boundaries to avoid artifacts

This follows the paper implementation. This gives nice results on complex
motions.

Merge branch 'greasepencil-edit-curve' into soc-2020-greasepencil-curve

EEVEE: Motion Blur: Use Tile max dominant velocity reduction pre-passes

This makes the bluring post process quicker.

GPencil: Disable modifiers when Curve Edit is enabled

The handles edition is incompatible with the modifiers due the logic used to recreate the stroke when is editted with handles.

Merge branch 'master' into greasepencil-edit-curve

threading

Changes from D7978 and D7499

Merge branch 'master' into modifier-panels-ui