Blender Git Loki

Compositor: Full frame transform nodes

Adds full frame implementation to "Rotate", "Transform" and
"Stabilize2D" nodes.
To avoid sampling twice when concatenating scale and rotate
operations, a `TransformOperation` is implemented with all
the functionality.
The nodes have no functional changes.

Part of T88150.

Reviewed By: jbakker

Differential Revision: https://developer.blender.org/D12165

Compositor: Full frame convert nodes

Adds full frame implementation to all nodes in "Converter" sub-menu
except "ID Mask" which is implemented separately.
No functional changes.

Part of T88150.

Reviewed By: jbakker

Differential Revision: https://developer.blender.org/D12095

Fix T88107: rename Convertor to Converter nodes to correct spelling

Differential Revision: https://developer.blender.org/D11198

Fix T90423: black pixels after shadow terminator geometry offset

Solves an error in the principled diffuse BSDF, where it was not correctly
rejecting directions outside the hemisphere.

Differential Revision: https://developer.blender.org/D12283

Fix T90872: Dopesheet messes up keyframe handles

Y coordinate was not being constrained.

Caused by {rBb0d9e6797fb866e7a58876c7977c98a190070310}

Cleanup: rename parameter in transform utility

`inv_unit_scale` is not descriptive.

GPencil: Fix memory leak in split & trim functions

Authored by Henrik Dick (weasel)

Reviewed By YimingWu (NicksBest), Antonio Vazquez (antoniov)

Differential Revision: https://developer.blender.org/D12284

Fix T90772: Image Editor not sampling color from the the currently
selected pass

Caused by {rBebaa3fcedd23}.

Seems this above commit assumed an ImageUser's multi_index is only used
for Multiview/Stereo? This is not the case, multi_index also stores the
index for layer/pass combination.

If we call both BKE_image_multilayer_index and BKE_image_multiview_index
(even though this is not appropriate/needed for multilayer images?), we
might end up overwriting multi_index again.

note: looking at this I was also wondering why we update the ImageUser
in image-buffer-aquiring funnctions [and not from the UI, e.g.
template_image_layers, but that is a whole different story I guess, see
comment in T90772 as well]

note2: this could also use a utility function (this is not the only
place where this is done), this is fo a cleanup commit.

Maniphest Tasks: T90772

Differential Revision: https://developer.blender.org/D12267

Pipeline: Use more explicit cuda versions.

Fix T90651: camera reconstruction crash without scene camera

This was working differently in 2.79, tried tracking this down and it
seems this was wrong since the 2.8 beginning in {rB7907dfc40018}.

This would not only crash without an active scene camera, but would also
result in different tracks from different camera's constraints could not
be selected.

So select id depends on corresponding camera, remove the dependency on
scene camera completely.

Maniphest Tasks: T90651

Differential Revision: https://developer.blender.org/D12230

RNA: add length augmented to RNA_string_get_alloc

This was noted as a TODO as it wraps RNA_property_string_get_alloc
which takes a length return argument.

Cleanup: rename len to str_len for BLF functions

Make it obvious which variable this is the length of.

Cleanup: use BLI_str_utf8 prefix

Rename:

- BLI_str_utf8_invalid_byte (was BLI_utf8_invalid_byte)
- BLI_str_utf8_invalid_strip (was BLI_utf8_invalid_strip)

Fix T90847: snap to face of Add Primitive tool not working in edit mode

BVHTree was being created but not balanced.
Error introduced in {rBfcc844f8fbd0}.

Cleanup: fix comment about compiler support.

Differential Revision: https://developer.blender.org/D12288

BLF: Remove space_userpref.py font_kerning_style

Remove `font_kerning_style` from `space_userpref.py` since this is no
longer valid.

See more details in D12276

Differential Revision: https://developer.blender.org/D12276

Reviewed by Campbell Barton

Fix Windows builds after Zstandard commits

Add support for Zstandard compression for .blend files

Compressing blendfiles can help save a lot of disk space, but the slowdown
while loading and saving is a major annoyance.
Currently Blender uses Zlib (aka gzip aka Deflate) for compression, but there
are now several more modern algorithms that outperform it in every way.

In this patch, I decided for Zstandard aka Zstd for several reasons:
- It is widely supported, both in other programs and libraries as well as in
general-purpose compression utilities on Unix
- It is extremely flexible - spanning several orders of magnitude of
compression speeds depending on the level setting.
- It is pretty much on the Pareto frontier for all of its configurations
(meaning that no other algorithm is both faster and more efficient).

One downside of course is that older versions of Blender will not be able to
read these files, but one can always just re-save them without compression or
decompress the file manually with an external tool.

The implementation here saves additional metadata into the compressed file in
order to allow for efficient seeking when loading. This is standard-compliant
and will be ignored by other tools that support Zstd.
If the metadata is not present (e.g. because you manually compressed a .blend
file with another tool), Blender will fall back to sequential reading.

Saving is multithreaded to improve performance. Loading is currently not
multithreaded since it's not easy to predict the access patterns of the
loading code when seeking is supported.
In the future, we might want to look into making this more predictable or
disabling seeking for the main .blend file, which would then allow for
multiple background threads that decompress data ahead of time.

The compression level was chosen to get sizes comparable to previous versions
at much higher speeds. In the future, this could be exposed as an option.

Reviewed By: campbellbarton, brecht, mont29

Differential Revision: https://developer.blender.org/D5799

Use Zstandard compression for the sequencer cache

Reviewed By: campbellbarton, brecht, mont29

Differential Revision: https://developer.blender.org/D5799

Refactor low-level blendfile reading into separate files

Instead of handling mmap, compression etc. all directly in readfile.c, refactor
the code to use a generic FileReader.
This makes it easier to add new compression methods or similar, and allows to
reuse the logic in other places (e.g. thumbnail reading).

Reviewed By: campbellbarton, brecht, mont29

Differential Revision: https://developer.blender.org/D5799