Blender Git Loki

Cleanup: use prefix for tests

Allows for running all `bmesh_*` or `object_*` tests.

Object Mode: remove Scene.obedit

This means we can support having the same scene in different windows
with different edit-objects.

GPU: add offscreen buffer drawing utility functions.

Code cleanup: stop using rectangle textures in window draw, simplify code.

Code cleanup: fix incorrect reading of GL scissor coordinates.

These are often the same as the viewport, but not always.

Code cleanup: remove unneeded gla* 2D drawing functions.

Fix blenderplayer build.

Merge branch 'master' into blender2.8

Add ED_object_editmode_exit_ex

Allow exiting editmode from non-active scene.

Cycles: Implement index output for hair node

This is like the only way to add variety to hair which is created
using simple children. Used here for the hair.

Maybe not ideal, but the time will show.

Fix T54064: Can't create new Cycles materials

Was caused by object mode removal

Object Mode: remove Scene.obedit for RNA

Object Mode: Loop over objects for ED_editors_exit

We could loop over active objects but this ensures don't miss any
and avoids complicated context checks.

Object Mode: remove Scene.obedit

Add ED_screen_window_find, BKE_workspace_edit_object

Object Mode: remove Scene.obedit for 3D View

Object Mode: pass edit-object to outliner drawing

Also add 'OBEDIT_FROM_EVAL_CTX' macro.

Object Mode: pass edit-object to UV API

Object Mode: remove Scene.obedit in draw manager

Part of larger change to remove this variable entirely.

(Nodes) Display image name if any in the Cycles Image and Environment Texture node title

Fix random walk SSS issues with different base and subsurface color.

Burley SSS uses a bit of strange thing where the albedo and closure weight are
different, which makes the subsurface color act a bit like a subsurface radius
indirectly by the way the Burley SSS profile works.

This can't work for random walk SSS though, and it's not clear to me that this
is actually a good idea since it's really the subsurface radius that is supposed
to control this. For now I'll leave Burley SSS working the same to not break
backwards compatibility.