Blender Git Loki

Space_node: Add draw backdrop callback.

Add a callback to allow custom node editors to draw their own
backdrop.

Differential Revision: https://developer.blender.org/D4709

Reviewed by: JacquesLucke

Depsgraph: fix standard IK target dependencies.

Targeting a different object always requires its transform,
and normally dependencies should go to the solver node.

ITASC is quite broken so special case it until fixed.

Fix T63816: Crash opening file with multiple view layers

Dependency graph will not be crated for view layers which were never visible.

B-Bones: remove hard limits on curve/roll/scale/ease properties.

I don't see any reasons why soft limits wouldn't be enough here.

Cleanup: rename the curveInX etc bbone DNA fields to curve_in_x etc.

B-Bones: split the Scale In/Out properties into X and Y values.

As far as I can tell, there is no technical reason why the B-Bone
segment thickness scaling can't be separated into two axes. The
only downside is the increase in complexity of the B-Bone settings,
but this is inevitable due to the increase in flexibility.

Updating the file is somewhat complicated though, because F-Curves
and drivers have to be duplicated and updated to the new names.

Reviewers: campbellbarton

Subscribers: icappiello, jpbouza

Differential Revision: https://developer.blender.org/D4716

Fix T63233: Set default blur kernel radius to 2.

Reviewers: jbakker

Differential Revision: https://developer.blender.org/D4722

Cleanup: Fix comment for ImBuf->encodedbuffer

Workbench: Support Active Vertex Color

Currently it is not possible to view the vertex colors of an object. To
optimize the workflow, workbench will need to support Vertex Colors.

The Vertex Colors is a new option in `shading->color_type`. When objects
do not have vertex color, the objects will be rendered with the
`V3D_SHADING_OBJECT_COLOR`.

In order to support vertex colors in workbench the current texture/solid
shading structure is migrated to a primary shaders and fallback shaders.

Fix: T57000

Reviewers: brecht, fclem

Differential Revision: https://developer.blender.org/D4694

Fix T63649: Action group expand setting for graph editor missing

I did not rename the other property to `show_expanded_dopesheet`
yet (as suggested in the report), because:
* Would break compatibility (haven't found any addon using it though).
* I'm not sure if this really only affects the dopesheet.

Cleanup: minor changes to scrollbar checks

Remove some redundant comments & declare vars in for loops.

UI: ignore events in empty region overlap areas

- Resizable areas use 2D view bounds.
- Header uses the button bounds.
- A margin is added to avoid clicking between buttons.
- Region resize edges clamp to the 2D view bounds.

Resovles T61554

UI: add ui_window_to_block_rctf, ui_window_to_region_rcti

UI: move auto_open clearing out of ui_region_contains_point_px

Prefer explicit call for menu buttons since it's confusing if only some
queries clear auto open.
Also queries shouldn't modify data.

Cleanup: style, use braces for compositor

Cleanup: style, use braces for imbuf

Fix T63772: Movie clip toggle toolbar fails

D4718 by @Gvgeo

App Template: match screen names to workspaces

Doing this makes versioning workspace screens simpler.

This was already done for the default startup file.

Correct braces with ifdef's

Rename: Separate: By loose parts > By Loose Parts