Blender Git Loki

Merge branch 'master' into blender2.8

Conflicts:
source/blender/editors/animation/anim_draw.c

bug in DEG_OBJECT_ITER

Fix T50614: Curve doesn't restore initial form after deleting all its shapekeys

Logic of handling shapekeys when entering and leaving edit mode for
curves was... utterly broken.

Was leaving actual curve data with edited shapekey applied to it.

Layers: Fix unittest after 65a75e11

Layer/Outliner: add a few operators that I need for the video demo

Layer: change default name of doversion layer (Viewport now)

Follow up on mode engine code separation

The settings initialization belong within the engines

Clay Engine: Separate mode drawing to different files/engines.

Layers: Fix visibility evalution + Unittesting

test_evaluation_visibility_a failed before, but it is now fixed
test_evaluation_visibility_b passed before and was used as control to make sure it was not broken

Remove unused functions related to distance between BoundBox and ray

Layers: ob.visible_get()

Similar to ob.select_get(), but for BASE_VISIBLED.

Layers: Fix crash on opening files saved in clay

Basically we were not tagging the layers and bases as dirty. As usual this will likely change once Depsgraph kicks in. But this will do for now.

OpenGL: mask_draw uses new imm mode

Based on D2371 from @ryry. Mostly T49043, a little T49042.
Deleted some unused drawing code instead of updating it.
I have a few more things in mind for this file... tomorrow!

Forgotten in last commit: Check the allocation

OpenGL immediate mode: sequencer_draw.c (finished)

Converted the remaining diagonal stripes thingies...

Part of T49043

Add diagonal stripe shader (GPU_SHADER_2D_DIAG_STRIPES)

Reviewed By: merwin

Differential Revision: https://developer.blender.org/D2512

Do not release the arrays used in the parameters of the expanded functions of bvhutils

The release of these arrays should be the programmer's discretion since these arrays can continue to be used.

Only the expanded functions `bvhtree_from_mesh_edges_ex` and `bvhtree_from_mesh_looptri_ex` are currently being used in blender (in mesh_remap.c), and from what I could to analyze, these changes can prevent a crash.

Make File: Print 'blender.exe' at the end of the path to run from

Cleanup: Spelling, Spaces --> Tabs, Whitespace

blender2.8: New immediate mode for sculpt_uv.c

[Note: this patch functionality was implemented in parallel, independently at bf83f097ad7e
That said, the original patch was also removing an unnecessary include,
so here it is]

Replaced the one call to `glutil_draw_lined_arc`.
This seems to be the only draw call in this file.

Reviewers: merwin

Tags: #bf_blender_2.8

Maniphest Tasks: T49043

Differential Revision: https://developer.blender.org/D2497