Blender Git Loki

Sculpt: fix paint brush defaults

Cleanup: typos in code and comments.

No functional changes.

Fix Alembic point cloud streaming.

Point clouds are not imported and read anymore. This was caused by an
API change in rB128eb6cbe928e58dfee1c64f340fd8d663134c26 which was not
applied to `AbcPointsReader`. It did not cause a compile error as the
base class as a default implementation for this method.

Cleanup: use override/final for derived classes.

This will help detecting missing API changes. Those keywords were added
on classes which did not already use them. Also added missing
`accepts_object_type()` on NURBS reader.

fix small but significant typo

Fix a few regressions in other paint modes.

Merge branch 'temp-lineart-contained' into lineart-shadow

Merge remote-tracking branch 'origin/master' into temp-lineart-contained

Sculpt: More brush channels stuff

Small progress towards outputting attributes from modifier

Sculpt: Unnest channels.channels in RNA

* BrushChannelSet is now a pure collection. This
eliminated the annoying brush.channels.channels
paths, and also makes library overriding work.
* Now sure I've done this correctly. Struct extended
collection properties are a bit confusing.

Merge branch 'master' into nodes-attribute-toggle-only-fields

Merge branch 'master' into soc-2021-porting-modifiers-to-nodes-merge-by-distance

# Conflicts:
# source/blender/blenkernel/BKE_node.h
# source/blender/makesrna/intern/rna_nodetree.c

removed unneeded change in CMake file

merged master and updated the node to fields.

Fix T91662: VSE Image overlay is drawn for backdrop

Don't draw image overlay in timeline, image manipulation only works in
preview.

Fix T91639: Cycles crash rendering high resolution images with multiple passes

We were writing large 2048x2048 tiles into EXR files, which appears to cause
integer overflow inside the OpenEXR library when there are multiple passes. Now
use smaller tiles in the image file, while still rendering large tiles.

This adds the requirement that the render tile size must be a multiple of 128
or be smaller than 128, this is adjusted automatically.

Geometry Nodes: Add versioning and legacy warning for random float node

Geometry Nodes: Random Value Node

This node replaces the deprecated Attribute Randomize node, populating
a vector, float, integer or boolean field with random values. Vector,
float, and integer have min/max settings, which are also field aware.
The boolean type has a probability value for controlling what portion
of the output should be true. All four types have a field seed input
which is implicitly driven by the index, otherwise, all values would
be the same "random" value.

The Random Float node is now deprecated like other nodes, since it is
redundant with this node.

Differential Revision: https://developer.blender.org/D12603

Adapt to changes in master