Blender Git Loki

Merge branch 'master' into greasepencil-object

Conflicts:
source/blender/makesdna/intern/dna_rename_defs.h

Theme: Radial gradient background and enum for gradient type

This commit replaces the "Use Gradient" checkbox theme option with an
enum and implements a radial background.

Whith this change, it should be easier to implemet other types of more
complex background types, like a world space oriented gradient.

Reviewed By: billreynish, fclem, brecht

Differential Revision: https://developer.blender.org/D6825

Fix T54270: Reset last_hit and last_location when reading the file

It does not make sense to read those values when loading a file and they can crash the cursor if they contain invalid coordinates.

Reviewed By: brecht

Maniphest Tasks: T54270

Differential Revision: https://developer.blender.org/D6754

Fluid: Updated manta pp files

Updates in the files include:
- New manta files now use an platform independent gzopen function
- Adjusted argument name for vorticity

Fluid: Updated Manta updater script

Minor adjustments for the build directory location.

Cleanup: `make format`

Fluid: More cleanup in fluid rna code

Removed scientific variable names from UI.

Fix T73932: modifying keyframes in nodes fails when there is an image sequence

Image animation should not be an depsgraph node of type ANIMATION, there is
no need for it to be affected by the special casing for that.

Sculpt: Pinch only in the direction perpendicular to the stroke

By pinching this way, we can fix some artifacts when sculpting following
the topology direction. It does not make much difference with dyntopo/
remesher, but I think this should improve the quality of the brush when
working with Multires.

Reviewed By: JulienKaspar, jbakker

Differential Revision: https://developer.blender.org/D6587

GPencil: Invert luminance sorting for lighter to darker

GPencil: Add new Value and Luminance sorting for Palettes

Fluid: Cleanup in fluid rna code

More descriptive names for secondary particle options.

GPencil: Change Palette Sort by menu texts

Fix T74009: `bpy.ops.outliner.orphans_purge()` poll being too restrictive.

There is no reason to even require an editor at all here, for now just
kept the 'orphan view needed' condition for the outliner case only.

Fix for Fix (c) : Normals Edit modifier using unititialized array of normals...

Own mistake in recent rBcfdb5b9a8b07.

Fix T72751: Timeline crash from overridden scene.

Depsgraph RNA pointer would generate infinite loop in override comparisons.

Depsgraph pointer should never be considered here anyway, this is purely
runtime data.

Fluid: Fix typo that was made in 4453509d83dc

Fix T73770: Mantaflow is unable to bake fluid simulations on non-ASCII file paths

Some fluid cache functions were not using Blender's more secure BLI_gzopen() function. On Windows there are some special cases which this function can handle compared to the plain gzopen().

cleanup naming

simplify interface