Blender Git Loki

RNA: naming, user-preferences -> preferences

3D View: add object color drawing option

Has some advantages over existing options.

- Using material links color to rendering with no way to vary colors
if objects share a material.
- Random gives no control, objects may randomly have the same color,
duplicating an object often changes it's color.

Cleanup: unused arg

Cleanup: macro hygiene, line length

Mesh Batch Cache: Fix missing flag for looptris indexbuf generation

Fix T59637: Crash report - Overlays -> Face Orientation causes crash

Workbench: Fix wrong TEXTURE_DRAWING_ENABLED check and rework drawing logic

This makes the code easier to follow. Batches are now assumed to be not
NULL as the request system garatees it.

UI: use smaller widget for expanding hidden region

The '+' widget to show a hidden region came too close to overlapping
the viewport navigation gizmo and text editor text.

Reduce size and use an arrow icon.

D4110 by @gnastacast

Library: correct BKE_id_to_unique_string_key fix

GP: Use only selected points to calc transform center

GP: Enable center for Local Origins only

This produces very interesting effects when move using proportional editing.

GP: Undo center calculation

This is breaking the transformation with falloff enabled.

GP: Change default parameters for convert curves.

Now the link strokes is disabled by default.

Also some minor changes to adapt to new GP object.

Fix T59648: Linking material to greasepencil object causes crash

GP: Changes in API to make internal update

Now, the internal data is recalculated when add or remove a point.

The change in the API affect to stroke.points.add() that now requires a datablock parameter. This parameter is required to identify the datablock affected.

For example: stroke.points.add(gpencil, 1) instead of stroke.points.add(1)

This is the second try to fix T59600

Merge branch 'master' into blender2.8

Cycles: Fixes for recent curve robustness

The key indices were wrong: need to offset curve key index
by first curve key index. Also corrected calculation of the
interpolation step.

Annoyingly, can not reproduce this on a simple file, need
production rig. For the possible future look the following
file from Spring was used: 03_005_A.lighting.debug.blend

Fix T59672: UVs are not updating when changed in panel

Reviewers: brecht

Differential Revision: https://developer.blender.org/D4111

Revert "GP: New Python update API functions (WIP)"

This reverts commit e79f401ffa7d5354dde01073bbb4b7dd742fd32b.

The new API were against general design rules.

Fix T59674: context menu for channels not found

Fix T59083: normal transform orientation ignores absolute grid snap.

Absolute grid snap now takes into account the transform local axis.

Differential Revision: https://developer.blender.org/D4069