Blender Git Loki

Fix T55244: Parenting object(s) to curve crashes blender

There is a chance parts of Blender call BKE_object_workob_calc_parent
with ob->parent objects that are outside the depsgraph.

This we can tackle later since these are corner cases anyways,
and this fix fixes all parenting operators in Blender.

Object Modes: only use selection for mode switch

Selection is no longer needed for an object to be considered in a mode.

Part of T55246 design task, fixes T55187

Cleanup: Rename depsgraph variable

Merge branch 'blender2.8' into greasepencil-object

Conflicts:
source/blender/editors/gpencil/gpencil_edit.c
source/blender/editors/gpencil/gpencil_paint.c

Fix: Only change transform mode from translation to rotation/scale when no valid bones were found in an armature

This commit fixes a problem the Spring team were having in the shot files 01_030/050 with
the camera rig, where when you tried grabbing/translating the bones of the camera rig,
they would only keep rotating/scaling instead.

The reason for this is that with the multi-object editing support added into the transform
system, this code would now get run for all the other objects that were being included
in Pose Mode, even if no bones from those armatures were selected. Since no valid translatable
bones were found in those other armatures, the transform mode would get reset upon
encountering one of those other bones.

UI: Expand space sub-types into the menu

Initial support for expanding editors, see: T54744

Cleanup: use same 'depsgraph' name everywhere outside of DEG space.

'graph' is waaaayyyyy too generic name outside of DEG context, and
better try to use same name everywhere!

EEVEE: LookDev fade out background option

wip

Merge branch 'blender2.8' into asset-engine

Conflicts:
release/scripts/startup/bl_ui/space_info.py
source/blender/blenloader/BLO_readfile.h
source/blender/blenloader/intern/readfile.c
source/blender/blenloader/intern/versioning_280.c
source/blender/makesdna/DNA_ID.h
source/blender/makesrna/intern/rna_space.c
source/blender/windowmanager/intern/wm_files_link.c
source/blenderplayer/bad_level_call_stubs/stubs.c

EEVEE: LookDev use_scene_light draw option

Scene lights are rendered when
- v3d is not available
- or shading type is other then OB_MATERIAL
- or shading type is OB_MATERIAL and use_scene_light is true

Fix T55203: Particle hair weights are not preserved

Merge branch 'greasepencil-object' of git.blender.org:blender into greasepencil-object

Bind/Unbind regions immediately when setting their face map.

Disable unlink operator for the bundle face map, since unbound bundles are not functional.

We can still end up with unbound bundles, e.g. when face maps are removed or renamed,
so it needs to be accounted for. But this should not be an explicit user action.

EEVEE: LookDev overlays enabling

The mirror ball and diffuse ball are only rendered when overlays are
turned on and the lookdev overlay is turned on.

Fix missing renames in previous commit

Cleanup: some missing renames from last commit

Also whitespace edits

Show scalp region buttons in separate panel.

Merge branch 'blender2.8' into greasepencil-object