Blender Git Loki

Fix for unwanted particle re-distribution happening due to memory optimization

The issue was caused by memory optimization marking particle system to recalc,
and because of the way how particle flags works it was possible that it'll
cause particle's re-distribution. Now this memory optimization will act the
same as loading the file.

This commit appears to be safe according to our render farm and is safe to
be included into final release.

Fix T44871: Blender hangs when using masking, dilate-erode and soften node

The issue was caused by wrong order of locks acquisition in the compositor image node.

Cycles: Report currently sampling tile when CPU is working on the last tile

This is mainly useful for the render farms output when logging might stop at
the "Path Tracing Tile N/N" string, which makes it a bit difficult to follow
what exactly is happening (node going crazy, hardware issues or just last tile
is too much heavy).

This is more like an experiment, might be changed in the future.

Fix for shifted samples when slicing a cache archive at a later start
frame.

Sample 0 always has to be defined, or the later samples will become
shifted toward the beginning.

Use '-' instead of '..' as a range separator for the cache slice
operator.

Fix for invalid sample indices.

Extended frame selection for the cache slice operator to support
multiple frame ranges.

Caches can generally be constructed using an arbitrary subset of samples
from the original file. It's mostly a matter of operator UI how this
can be defined by users.

Return non-zero exit code when running blender from the command line and reading file has failed

This way automated scripts can actually see if some issue happened.

Revert "Squashed commit of asset-experiments branch."

This reverts commit 196e09c57e7f097bc8d575d2ae21bf358130d455.

Squashed commit of asset-experiments branch.

Merge branch 'master' into experimental-build

Merge branch 'master' into asset-experiments

Merge branch 'master' into openvdb

Add a function to allocate and set default values for the drawing
properties.

One more de-duplication.

Rework the UI for displaying the OpenVDB data.

Cleanup: de-duplicate drawing code.

Add a level of detail scheme to reduce the number of voxels to be drawn.

Merge branch 'master' into temp_imbuf_types_refactor

Merge branch 'master' into gooseberry