Blender Git Loki

Cleanup: style

WM: fix redo region setting the context

WM: add support for temporary region data

Cycles: Query XYZ to/from Scene Linear conversion from OCIO instead of assuming sRGB

I've limited it to just the RGB<->XYZ stuff for now, correct image handling is the next step.

Reviewers: brecht, sergey

Differential Revision: https://developer.blender.org/D3478

Cycles: Connect value inputs to Strength instead of Color when inserting an Emission node

Same result, but saves an additional ConvertNode.

Cycles: Automatically detect HDRI resolution by default and use non-square sampling map

The automatic mode checks all Enviroment Texture nodes and picks the largest image's resolution.
If there are no Enviroment Textures, it just uses the old default.

Also, the sampling map now isn't limited to square shapes. The automatic detection uses the exact image size,
the manual UI option now halves the value to get the height.

A default aspect ratio of 2:1 makes sense since this is what most HDRIs use.

Reviewers: brecht, sergey

Differential Revision: https://developer.blender.org/D3477

WM: revert part of Top-Bar inclusion

This removes OperatorRepeatContextHandle, from 5f6c45498c92b
since we now only have redo in the area an operator is executed in.

These values could be invalid and crashed in some cases.

Edit Mesh: Fix blending function of edges

This fix the ugly (usually) dark outline that was around selected edges.

Fix motion paths not updating correctly for bones in some cases.

Sometimes the evaluated pose channel pointers can change during depsgraph
evaluation, so we can't store them ahead of time. The object pointer
should be ok since evaluated ID memory is reused.

Revert "GHOST: GLX: Remove XInitThreads"

This reverts commit 7529690df38ced314d59af3b10c610e3fd56c807.

I tried to put manually add threading protection to GHOST around
Xlib calls but that did not fix the crashes. So reverting that
for now despite the performance implication on some system.

Preview: Add own opengl context to render preview images.

Give RigidBodyWorld collection a fake user

This prevents it from disappearing when the blend file is saved.

UI: redo panel would still start zoomed in at times

Cleanup: some remaining G.main's in COllada in 2.8...

Workbench: Code cleanup: Double assignment

Cleanup: remove BLI_frand ugly global random generator usage from compositor.

Transform: Suppress assert w/ vertex paint

Depsgraph: Make certain components NOT tag copy-on-write when they are tagged

Currently done for mesh batch cache update, and for base flags sync.
Those components do not need anything from original object, and hence
can skip CoW tag and have faster update after them used.

Depsgraph: Use dedicated ocmponent for object's base flags flush

Merge branch 'master' into blender2.8

Conflicts:
source/blender/collada/AnimationExporter.cpp
source/blender/collada/AnimationExporter.h
source/blender/collada/ArmatureImporter.cpp
source/blender/collada/ArmatureImporter.h
source/blender/collada/ControllerExporter.cpp
source/blender/collada/ControllerExporter.h
source/blender/collada/DocumentExporter.cpp
source/blender/collada/DocumentImporter.cpp
source/blender/collada/GeometryExporter.cpp
source/blender/collada/GeometryExporter.h
source/blender/collada/MeshImporter.cpp
source/blender/collada/MeshImporter.h
source/blender/collada/SkinInfo.cpp
source/blender/collada/SkinInfo.h
source/blender/collada/collada_utils.cpp
source/blender/collada/collada_utils.h