Blender Git Loki

Merge branch 'master' into temp-gpencil-drw-engine

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

UI: use consistent names and menu organization for blending modes

The Python API is unchanged and remains compatible.

Differential Revision: https://developer.blender.org/D5830

Python API: remove unnecessary ELASTIC_DEFORM_ prefix from enum identifiers

Revert "UI: use correct singular and plural nouns in report messages"

Convention is to use (s) postfix for cases where there can be one or multiple,
so stay consistent with that.

This reverts commit 3e8276311ed17d12e8b47b4fe8e2f68c1ce8c603.

Fix building QuadriFlow with Clang on Windows

Boost 1.68 has a bug in its type_traits where it does not include the right
header for the is_assignable macro when building with Clang. Temporarily work
around it until we upgrade to a newer Boost version that fixes it.

Differential Revision: https://developer.blender.org/D5962

GPencil: Fix memory leak

The return was breaking the memory free.

GPencil: Fix typo error

Merge branch 'master' into temp-gpencil-uv

Merge branch 'master' into greasepencil-object

GPencil: New operator to clear UV transformations

Fix T70252: Reverting to macOS 10.11 compatible API.

GPencil: Fix error of initialization

Merge branch 'feature/modifier_openvdb_280' into blender-v2.80-develop

Merge branch 'feature/cycles_deferred_ray_marching' into blender-v2.80-develop

Cleanup: simplify node modal select implementation

Ref T63994

Silence remesh building warning

MSVC: Support Building clang+ninja+VS2019

1) Clang was given the wrong VS version to emulate when used in
combination with VS2019 causing build issues.

2) The erroneous supplied parameter `-std::c++11`caused CMake to
fail running its compiler detection scripts.

UI: "text not found" message in text editor, change type from ERROR to WARNING

Differential Revision: https://developer.blender.org/D5736

UI: tweak layout of boid brain panel

Differential Revision: https://developer.blender.org/D5684

Keymap: make plane track corners draggable with lmb

Previously when clicking and dragging with LMB you would only move the entire
plane track. In order to move the corners independently you would have to use
your right mouse button. This would also prevent the context menu to show up.

Now LMB click and drag on corners moves them. If you LMB click and drag one of
the 4 edges of the plane track you would move the entire plane track.

Differential Revision: https://developer.blender.org/D5519