Blender Git Loki

Texture Paint: implement efficient face selection updates.

Fix the old code that propagates selection changes to the
evaluated mesh directly without rebuilding, and avoid tagging
DEG_TAG_COPY_ON_WRITE if it succeeds.

Fix usage of mesh_get_eval_final in vertex selection.

It's a very bad idea to call this on non-COW instances - see T58150.
Also, when rebuilding mesh it's better to accumulate mask flags to
avoid possible repeated rebuilds from different users.

Texture Paint: fix face selection with subsurface.

Texture Paint: emulate subsurf optimal display in paint mode wireframe.

The wireframe is intended for showing selected faces, and selection is
based on original faces, so the extra wireframe lines are pure noise.

Texture Paint: fix wireframe and hiding not working with subsurf.

The editflag field is only valid in the original mesh instance.

Texture Paint: avoid rebuilding evaluated mesh on first stroke.

Ensure all relevant CustomDataMask bits are set during normal evaluation.

Fix camera gizmo sensor check

Also correct wrong but harmless assignment.

Cleanup: style

Cleanup: redundant NULL checks

Also use unsigned shifting for values not in int range.

Revert "Win32: Use the nicer looking blender-drawn confirmation message box when"

This reverts commit 60d6eb0b5d578eb02c5f1f31cb51a6cbeea6ee6f.

There is already a full patch (D3118) by brecht for this, will leave it up to him.

Cleanup: duplicate include

Merge branch 'master' into blender2.8

Cleanup: style

Win32: Use the nicer looking blender-drawn confirmation message box when
quitting with unsaved changes, instead of an ugly messagebox

Fix file browsers thumbnail selection with tablet failing, after recent changes.

Fix T58244: Proportional editing center is wrong

The global center was not calculated at all. Now a center is calculated using the selected points

Fix T58267: node socket grabbing not working well with box select tool.

Fix T58235: broken baking of tangent space normals.

Annotation: Replace ALT key to CTRL for Eraser

This makes the keymap consistent with Grease Pencil.

StudioLight Editor: Add copy settings and overwrite prompt

Copy settings let users create variations more easily.

Ovewrite prompt is there to be able to edit already existing studiolight.