Blender Git Loki

Suppress the unused parameter warning from D9551.

The parameter is only used in an assert.

Alterations according to changed event properties

Fix tooltip disabled hint not using correct context from the button

To display the "disabled hint" (text explaining why a button is disabled) in a
tooltip, it would run the operator poll callback, which could then set a poll
message. But the context for the poll check wasn't the one from the button, so
the poll may give a different result (and disabled hint) than the check of the
button itself did.
Make sure it uses the exact context from the button.

Asset Catalogs: add test for backslashed catalog paths

No functional changes necessary, test already succeeds.

Fix: Curve trim crash on splines with no edges

Asset Catalogs: refresh simple name when renaming catalog

When renaming an asset catalog, also update its simple name.

Catalogs will most likely be created from within Blender, so via the
catalog tree in the asset browser. Here catalogs are always named
"Catalog" until the user renames them, which was reflected in all simple
names being "Catalog".

Cleanup: rename & restructure `AssetCatalogPathCmp`

Rename `AssetCatalogPathCmp` to `AssetCatalogLessThan`:
- it compares more than paths (so no more `Path` in the name), and
- performs a less-than operation (so no more `Cmp` in the name).

Also restructure its code to make an extra upcoming comparison easier to
add.

No functional changes.

Asset Catalogs: treat first-loaded catalog as main catalog

When there are multiple catalogs with the same path (so different UUIDs
all mapped to the same catalog path), treat the first-loaded one as the
main catalog for that path, and the rest as aliases.

This ensures that the UUID of a catalog (as chosen in the tree UI and thus
interacted with by users) is stable, regardless of whether by some coincidence
later another catalog with the same UUID is created.

Nodes: add utility to find NodeRef for node

In the future `NodeTreeRef` could have a lazy initialized map,
but for now this is good enough.

Geometry Nodes: fix force-computing multiple non-output sockets

There were some issues when multiple inputs of the same node
were forced to be computed (e.g. for the spreadsheet), but none
of the node outputs (if existant) were used. Essentially the node
was marked as "finished" too early in this case.

This fix is necessary for the improved viewer node (T92167).

Cycles: add shadow path compaction for GPU rendering

Similar to main path compaction that happens before adding work tiles, this
compacts shadow paths before launching kernels that may add shadow paths.

Only do it when more than 50% of space is wasted.

It's not a clear win in all scenes, some are up to 1.5% slower. Likely caused
by different order of scheduling kernels having an unpredictable performance
impact. Still feels like compaction is just the right thing to avoid cases
where a few shadow paths can hold up a lot of main paths.

Differential Revision: https://developer.blender.org/D12944

Windows: Fix finding python for build helpers

It was still looking for the 3.7 folder
rather than 3.9

Merge branch 'master' into soc-2021-curves

IDManagement: Assign current Main's lib to newly created IDs.

This is mainly for doversion code, when it needs to create new IDs those
should be considered as part of the same library as the current Main's
one.

No practical changes are expected here, this is more of a general
consistency fix, and a pre-requisite for {T92333}.

Fix T92355: Quadriflow crashes with zero length edges

Add a check for zero length edges to the manifold check as quadriflow
doesn't handle meshes with these.

Fix T92272: Rigid Body Copy to Selected "Margin" crash

Caused by {rB43167a2c251b}

Code from above commit called RNA updates with a NULL scene.
This was already commented (and mostly handled) in rB5949d598bc33, but
the reported case was missing in that commit.

This fixes the crash in a similar manner as rB5949d598bc33.

Maniphest Tasks: T92272

Differential Revision: https://developer.blender.org/D12953

Fix T92169: "View Selected" on Custom Boneshape with transform wrong

Since the introduction in rBfc5bf09fd88c, `BKE_pose_minmax` was not
taking these custom transforms into account (making "View Selected"
ignoring these as well and focusing on the bone instead).

Now consider these transforms in `BKE_pose_minmax`.

Maniphest Tasks: T92169

Differential Revision: https://developer.blender.org/D12942

Deps: Python, bundle zstandard package

This package allows Python scripts to handle compressed blend files (see
rB2ea66af742bc). This is for example needed by Blender Asset Tracer to
send files to a Flamenco render farm.

This change includes a new `WITH_PYTHON_INSTALL_ZSTANDARD` build-time
option, to control whether to actually install the package. For this the
already-existing approach for Requests was copied.

Reviewed By: LazyDodo, mont29, brecht

Differential Revision: https://developer.blender.org/D12777

Deps: Python, bump bundled packages to their latest versions

certifi : 2020.12.5 ? 2021.10.8
chardet : 4.0.0 ? charset-normalizer 2.0.6
cython : 0.29.21 ? 0.29.24
idna : 2.10 ? 3.2
numpy : 1.19.5 ? 1.21.2 (which makes it possible to remove our patch)
requests: 2.25.1 ? 2.26.0
urllib3 : 1.26.3 ? 1.26.7

Nowadays `requests` no longer depends on `chardet` but on
`charset-normalizer`. That project describes itself as:

> A library that helps you read text from an unknown charset encoding.
> Motivated by chardet, I'm trying to resolve the issue by taking a new
> approach. All IANA character set names for which the Python core library
> provides codecs are supported.

Reviewed By: LazyDodo, mont29, brecht

Differential Revision: https://developer.blender.org/D12777

Deps: Bump Python 3.9.2 ? 3.9.7

Bump Python from 3.9.2 to 3.9.7, which is the latest 3.9 release at this
moment.

Updates to bundled Python packages will follow in a separate commit.

Reviewed By: LazyDodo, mont29, brecht

Differential Revision: https://developer.blender.org/D12777