Blender Git Loki

PyAPI: use instancing when supported

This means when a new data-type is returned it will use the same
instance as the previously created one (if it exists).

now alpha blends same as the rgb colors

Partially revert previous commit, some unwanted changes sneaked in

Depsgraph: Use explicit material update operation code

Avoids string comparison on key matching.

Split Amber into pieces!

Depsgraph: Solve TODO about more granular particle settings update tagging

Fix/workaround T52127: Combed hair from 2.78 not showing when appending

Quick solution to prevent particle components from being tagged for complete
re-evaluaiton.

Fix T52125: principled BSDF missing with macOS OpenCL.

Depsgraph: Fix crashes when OCIO configuration is missing

We were creating copy on write version of scene prior to validating color management
settings for the original scene.

Depsgraph: Fix missing UV layers with copy on write enabled

Cycles: fixed the SM_2x CUDA kernel build that I broke in my previous commit

Depsgraph: Fix crash with copy on write when scene has legacy bases

The remapping code was creating plkaceholders for objects coming from legacy
bases, but since those objects were never created by dependency graph (since
they are supposed to be ignored) the copy on write relations creation was
confused.

Now we do some special trickery to clear legacy bases on copy on write.

Depsgraph: Ignore groups from copy on write expansion

Groups will not have IDs in the dependency graph, so we shouldn't
create them for CoW as well.

Merge branch 'master' into asset-engine

Merge branch 'id_copy_refactor' into id_override_static

Correct missing in last commit.

Merge branch 'master' into id_copy_refactor

Fixed shape anchor and z-orientation. Added tools to sculpt panel. (smoothness, depth, resolution).

New field to save derived data from modifiers

BMesh face map layer access