Blender Git Loki

BKE: bvhutils: Always return NULL when the BVHtree has no leafs.

BLI_bvhkdop functions were not made to work with zero-leaf trees.
Perhaps a better solution would be to modify BLI_bvhkdop to work with zero leaf trees.
But this solution of returning NULL was already used for bvhtrees of looptris.

ED_transform: Port ED_transform_snap_object to new Mesh-based system.

Differential Revision: https://developer.blender.org/D2896

BKE: bvhutils: Port bvhtree_from_mesh_get to take a Mesh param instead of a DerivedMesh.

Differential Revision: https://developer.blender.org/D3227

Extrude Widget: with/without axis constraint

Extrude Widget: tweak draw style

Use filled circle for redo

View Layer overrides

TODO:
* Properties (all)

Notes:
* UI settings, stored per scene so it does not change based on view layer
* Link collection menu can leak memory (like Move to Collection).

The design for this task is: T54792

Cleanup: Remove "colorname" from GPStroke.new()

This isn't used now, so remove it to silence the compiler warnings here

Cleanup: naming (prefer len over num for new code)

Cleanup: mesh_runtime naming

- BKE_mesh_get_looptri_num -> BKE_mesh_runtime_looptri_len
- BKE_mesh_runtime_recalc_looptri -> BKE_mesh_runtime_looptri_recalc
- BKE_mesh_get_looptri_array -> BKE_mesh_runtime_looptri_ensure

Missed last commit

Merge branch 'master' into blender2.8

Fix compiler warnings after API changes in 2.8

Merge branch 'blender2.8' into greasepencil-object

# Conflicts:
# source/blender/blenloader/intern/versioning_280.c
# source/blender/editors/gpencil/gpencil_edit.c
# source/blender/editors/gpencil/gpencil_paint.c
# source/blender/editors/gpencil/gpencil_utils.c
# source/blender/editors/object/object_transform.c

Modifier stack: partial port of ShrinkWrap to new Mesh-based system.

Partial only, complete depends on BVHTree helper updates, and subsurf
updates.

Modifier stack: Port Warp to new Mesh-based system.

Modifier stack: port Mask to new Mesh-based system.

Remove VFX simplify option

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

Conflicts:
source/blender/draw/engines/gpencil/gpencil_engine.c

Cleanup: includes

WIP: Temporary/placeholder commit to get compiling working

Commented out all lines referring to vfx-related passes/buffers.
(Antonio: Please revert this commit, then commit proper fixes for each of these lines)