Blender Git Loki

Cleanup: Get vertex group names directly from grease pencil data

Surface Deform: support sparse binding mode for improving performance.

When a vertex group is used to limit the influence of the modifier
to a subset of vertices, binding data for vertices with zero weight
is not needed. This wastes memory, disk space and CPU cycles.

If the vertex group contents is known to be final and constant,
it is reasonable to optimize by only storing data group vertices.
This has to be an option in case the group can change.

Supporting this requires adding a vertex index field and spliting
the vertex count into mesh and bind variants, but both happen to
fit in available padding. The old numverts field is renamed to the
new bound vertex count field to maintain the array length invariant.
Versioning is used to initialize the other new fields.

If a file with sparse binding is opened in an old blender version,
it is corrupted into a non-sparse bind with vertex count mismatch,
preventing the modifier from working until rebind.

Differential Revision: https://developer.blender.org/D11924

Cleanup: compiler warnings

Cleanup: spelling in comments

Fix T49944: Compositor ID Mask Anti-Aliasing not working

Replaces current ID Mask node Anti-Aliasing operation by SMAA
operations with default settings as proposed by Jeroen Bakker.
SMAA produces smoother edges.

Reviewed By: manzanilla

Differential Revision: https://developer.blender.org/D11881

Animation/add-ons: Enable the poselib add-on by default

The new Asset Browser-based pose library is partially implemented in an
add-on. This commit enables the add-on by default, as the old pose
library was built-in and thus always enabled.

The ability to disable the add-on is there mostly for cases where
people/studios want to use their own custom pose library.

Cleanup: Move UI list template code to own file (C++)

This move was already prepared with 788d38046032 and 26b098c04fbe. The
template is quite big already, better to give it its own file. Plus it
could use some C++ features like RAII and maybe some more object
oriented code. I plan further refactoring there.

UI: Flip driver editor debug lines

In driver editor, vertically flip the value debug lines to align
them with the timeline header values. This makes it easier to read
the values. Also set the line width explicitly, which was incorrect
in some cases.

Differential Revision: https://developer.blender.org/D8877

Asset Browser: Python mixin utility for category-specific panels

Using this mixin for a panel definition, it's possible to set in which
categories the panel should appear. This is used by the Pose Library
add-on.

Fix failing tests from vertex group name parameter copy

It turns out `BKE_mesh_copy_parameters` can be called while other
tools are running calculations, which meant that it was called at the
same time as `armature_deform_coords_impl`. Beause of that, we
shouldn't do any freeing (of the old vertex group names) there.

Since the materials are copied in the "for_eval" version anyway,
it seems to make sense to copy the vertex group name list there also.

Fixes T89877, and also the failing `deform_modifiers` test.

Differential Revision: https://developer.blender.org/D11936

Cleanup: Remove use of designated initializers in C++ code

Does not compile on Windows.

Fix T88281: Pose Library 'flip pose' sometimes flips wrong

Correct cases where the X-axis of the bone (in pose space) aligns with
the pose-space Y or Z-axis. In these cases the decomposition of the
matrix fails, and a negative scale of the X-axis turns into a 180�
rotation around the Y-axis. An extra -1 scale to the X and Z axes of the
resulting matrix seems to fix things.

Cleanup: unused variable capture

Cleanup: Clang tidy

UI: Auto-scroll to keep active text buttons in view

If a text button is activated that is not in view (i.e. scrolled away),
the scrolling will now be adjusted to have it in view (with some
small additional margin). While entering text, the view may also be
updated should the button move out of view, for whatever reason. For the
most part, this feature shouldn't be needed and won't kick in, except
when a clicked on text button is partially out of view or very close to
the region edge. It's however quite important for the previously
committed feature, that is, pressing Ctrl+F to start searching in a UI
list. The end of the list where the scroll button appears may not be in
view. Plus while filtering the number of visible items changes so the
scrolling has to be updated to keep the search button visible.

Note that I disabled the auto-scrolling for when the text button spawned
an additional popup, like for search-box buttons. That is because
current code assumes the button to have a fixed position while the popup
is open. There is no code to update the popup position together with the
button/scrolling.

I also think that the logic added here could be used in more places,
e.g. for the "ensure file in view" logic the File Browser does.

Assets: Show asset path in asset browser sidebar

It's useful to know where an asset is stored in, before this there was no way
to tell this. This could probably be displayed nicer in the UI but we're
currently unsure how. But at least the information is there now.

Assets: temporarily apply pose when generating preview image

When generating a preview image for a pose, temporarily apply it to the
armature. Contrary to the usual pose application, this ignores the
selected bones and always applies the entire pose.

UI: New button/widget type for Asset Browser like preview tiles

This button type shows a preview image above centered text, similar to
the File Browser files in Thumbnail Display Mode or the default Asset
Browser display. In fact we may want to port these over to use the new
button type at some point.

Will be used by the asset view UI template that will be added in a
following commit. That is basically a mini version of the Asset Browser
that can be displayed elsewhere in the UI.

Assets: Open Blend File operator

Add operator 'Open Blend File' to the Asset Browser. This operator:
- starts a new Blender process,
- opens the blend file containing the asset,
- monitors the new Blender process, and when it stops,
- reloads the assets to show any changes made.

UI: Support pressing Ctrl+F over UI lists to search

Adds an operator invoked by default with Ctrl+F that while hovering a UI
list, opens the search field of the list and enables text input for it.
With this commit the search button may actually be out of view after
Ctrl+F still. The following commit adds auto-scroll to solve that.

A downside is that in the Properties, there also is Ctrl+F to start
the editor-wide search. That's not unusual in Blender though (e.g.
scolling with the mouse over a UI list also scrolls the list, not the
region).