Blender Git Loki

GPencil: More work to import asset (WIP)

Cleanup: Simplify logic, use C++ types

Also remove an unecessary null check, and make inner loop simpler.

Fix T89722: Duplicate macro can cause strips to overlap

Bug caused by 78693d524c13 accidentally removing overlap handling when
transform operator is canceled.

Reviewed By: campbellbarton

Differential Revision: https://developer.blender.org/D11899

VSE: Fix multicam splitting all selected strips

`split_multicam` used split operator, where if more strips than
multicam were selected, all would be split, which is undesirable.

Add `Sequence.split()` RNA API function. to split individual strips.
Function accepts `frame` and `split_method arguments`. Returns right
strip after splitting.

In case when strip being split have effects, these will be split too, so
no invalid state should be created.

Selection is not handled, this is by design up to user.

Reviewed By: sergey

Differential Revision: https://developer.blender.org/D11926

Cleanup: Move gpencil_geom.c to C++

This will help enable development on optimizations to the perimeter
calculation here. Using C++ data structures like Array can make the
code easier to read as well.

Longer term, this can help improve integration with attributes
and possibly the new curve code (since strokes and curves are
quite similar in theory).

Differential Revision: https://developer.blender.org/D11941

adaptive_cloth: BKE_cloth_remesh: convert to and from AdaptiveMesh

adaptive_cloth: Sizing: get edge size squared

adaptive_cloth: VertData: initial implementation

Used to store extra `Vert` data in the `Mesh`.

adaptive_cloth: NodeData: initial implementation

Used to store extra `Node` data in the `Mesh`.

adaptive_cloth: BKE_cloth_remesh() add to namespace blender::bke

Fix T89899: Crashes when accessing vertex groups from objects

We need to be more strict about trying to retrieve a list of vertex group
names from objects now, as only three object types support them.
This commit adds a check for vertex group support in a few places, the
data transfer operator/modifier, copying vertex groups to selected
objects, and the vertex group remove and clear functions.

Differential Revision: https://developer.blender.org/D11947

Cleanup: Get vertex group names directly from grease pencil data

Cleanup: Remove redundant logic

The object type was checked twice unnecessarily. Also use a function
for the check to be more explicit.

Add operator properties to transform for toggling node link intersect.

bli: float2x2: multiply matrix with float

bli: float2x2: add 2 matrices

GPencil: Fix wrong array size and cleanup Hash code

GPencil: Basic 2D cage drawing

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

Fix T89782: Segfault populating popup menu with dimensions above the opengl limit

The crash happens because `GPU_offscreen_create` is called with `err_out` `NULL`.

This patch proposes a solution within the `GPU_offscreen_create` itself
and raises an error report in the interface if a menu is called with
dimensions beyond what is supported.

Ref T89782

Maniphest Tasks: T89782

Differential Revision: https://developer.blender.org/D11927