Blender Git Loki

Merge branch 'blender2.8' into greasepencil-object

minor secondary particle fixes

fixes immediate bake crash and missing tracers

Armature: Transparent Bone: Fix envelope not being alpha blended.

Armature: Add new Transparent Bone overlay option.

This is half the replacement of the old wireframe mode. It's not doing any
XRay drawing at the moment.

DRW: Do not multiply alpha or color by alpha if not in blend more.

DRW: Add DRW_pass_state_add and DRW_pass_state_remove

Fix: Left in debug prints

Fixes for motion path evaluation (part of T54810 work)

This commit brings back motion path calculations working on same level
as 2.7x. Caveats:
* You cannot actually see anything, as all the drawing code for motion
paths was removed and not reimplmented in 2.8 draw engines yet
* This doesn't actually use a separate depsgraph instance for fast
background calculations yet. That's a separate topic, and will require
further investigation (probably after code quest, according to original
planning).
* The work here *does* however pave the path forwards towards fully separate
COW evaluation though. We only need to stub in a different depsgraph instance
here to get things working.

Fix AA error after draw manager changes

The AA was not working and the stroke was not visible while drawing due some changes in the draw manager.

Fix: Tag armature for copy on write when selecting bones, so active bone gets updated

see 8a2d2f1bb40 for similar

Reviewers: aligorith, sergey

Reviewed By: aligorith

Maniphest Tasks: T54812

Differential Revision: https://developer.blender.org/D3204

Merge branch 'blender2.8' into greasepencil-object

Fix Movieclip editors 'graph' and 'dopesheet' view using themes region
background setting

mentioned in T54942

Reviewed By: campbellbarton

Differential Revision: https://developer.blender.org/D3200

Fix T54525: crash when setting number of frames to use between dupoff
frames

caused division by zero if both dupli_frames_on and dupli_frames_off are
zero. doing this doesnt seem useful, dupliframes can be disabled in
other ways.

Reviewed By: campbellbarton

Differential Revision: https://developer.blender.org/D3132

UI: add particle mode popovers

Workbench: Texture Shading mode

- draws the active texture of the material
- if the texture cannot be found it will fallback to solid/material

Workbench: Texture Shading mode

Fix Movieclip editors 'graph' and 'dopesheet' view using themes region
background setting

mentioned in T54942

Reviewed By: campbellbarton

Differential Revision: https://developer.blender.org/D3200

Fix T54525: crash when setting number of frames to use between dupoff
frames

caused division by zero if both dupli_frames_on and dupli_frames_off are
zero. doing this doesnt seem useful, dupliframes can be disabled in
other ways.

Reviewed By: campbellbarton

Differential Revision: https://developer.blender.org/D3132

Modifier stack: port 'normals edit' to new Mesh-based system.

Note that custom normals drawing seems to be broken, and there also are
some refresh issues in some cases... But this is same with old DM-based
code, so not related to modifiers themselves probably.

Clear dirty normals flag from Mesh at least in main BKE_mesh_calc_normals().