Blender Git Loki

Asset Catalogs: add documentation for undo system

Sculpt: fix gcc compiler error

This one is an actual error. I
went through the trouble of compiling
in a linux VM and still somehow managed
to miss it.

Also fix wrong range for normal_radius_factor.

Merge remote-tracking branch 'origin/master' into temp-asset-browser-catalog-undo

Asset Catalogs: undo/redo working (on service level)

Still needs named snapshots.

Only hide preview image while dragging over 3D View

Make the preview hide and unhide depending on if the user drags over the
3D View. In there the preview is too much visual noice, together with
the bounding box and snapping plane we draw there.

Asset Catalogs: undo stack for catalog edits

Add an undo stack for catalog edits. Still work in progress:
- Undo/redo behaviour needs to be refined (or test adjusted to match current behaviour)
- Stored snapshots need to have a name, so it can be shown in the UI what will be undone/redone.

Properly set rotation when dropping

Didn't respect the rotation mode before.

Adapt to changes in master

Sculpt: fix symmetry bug and mesh filter
smooth improvements

* Fixed symmetry bug
* Exposed a few hard edge options to the mesh filter tool
* Updated default brushes inside of startup.blend.

Correct numpy hash

Fix typo

Remove numpy patch, as it no longer applies; the option it tries to disable seems to have been removed from numpy.

Bump requests, certifi, urllib, idna, cython, and numpy packages. Replace chardet with charset-normalizer (dependency change of requests)

Merge branch 'master' into asset-browser-snap-dragging

Deps: bump Python 3.9.2 ? 3.9.7

Bump Python to 3.9.7 and add zstandard package

These changes will be committed in two separate consecutive commits.
It's easier to review & build as a whole, hence the single diff.

----------------------

*Bump Python 3.9.2 ? 3.9.7*

If we're going to add a Python package to Blender, this usually means
rebuilding all of Python, so we might just as well bump it to the
latest 3.9 release.

----------------------

*Bundle the `zstandard` Python package*

This package allows Python scripts to handle compressed blend files.
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. I'm not too
happy with the way Python packages and their dependents (Audaspace &
Mantaflow) are handled, but that's for a different cleanup commit.

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

Fix compile error on Windows

Merge branch 'master' into abc-features

Viewport: support rendering point attributes.

This adds support for rendering arbitrary attributes on point domains.
For now only float, float2, and float3 attributes are supported. For
more attribute types, and domains, a more flexible system to gather
needed attributes will be required, as we are currently running out of
bits.

Sculpt: add new bending constraint to cloth filter