Blender Git Commits

Merge branch 'blender-v2.82-release'

Fix incorrect return value for mesh vertex connect

Merge branch 'blender-v2.82-release'

Fix T73133: UDIM texture count in Eevee is limited by OpenGL

Based on @fclem's suggestion in D6421, this commit implements support for
storing all tiles of a UDIM texture in a single 2D array texture on the GPU.

Previously, Eevee was binding one OpenGL texture per tile, quickly running
into hardware limits with nontrivial UDIM texture sets.
Workbench meanwhile had no UDIM support at all, as reusing the per-tile
approach would require splitting the mesh by tile as well as texture.

With this commit, both Workbench as well as Eevee now support huge numbers
of tiles, with the eventual limits being GPU memory and ultimately
GL_MAX_ARRAY_TEXTURE_LAYERS, which tends to be in the 1000s on modern GPUs.

Initially my plan was to have one array texture per unique size, but managing
the different textures and keeping everything consistent ended up being way
too complex.

Therefore, we now use a simpler version that allocates a texture that
is large enough to fit the largest tile and then packs all tiles into as many
layers as necessary.

As a result, each UDIM texture only binds two textures (one for the actual
images, one for metadata) regardless of how many tiles are used.

Note that this rolls back per-tile GPUTextures, meaning that we again have
per-Image GPUTextures like we did before the original UDIM commit,
but now with four instead of two types.

Reviewed By: fclem

Differential Revision: https://developer.blender.org/D6456

Fix T72860: Mantaflow Fluid Sim fails when simulation starts after frame 1

Fix T72104 Blender selects faces outside of Clipping Region if X-Ray is off

Fix T72970: [Mantaflow] When changing the domain settings, the current frame of the scene is set to 1

Fix T51054: NULL-dereferences in crash-handler callback

Fix T70965: Undo crash with specific file

Not sure how the WorkSpaceLayout.screen pointer could end up being NULL,
but apparently that happens, or at least happened with older files.

Rather than just adding NULL-checks, prefer not keeping around those
invalid layouts at all.

Fix T73111: Bake data of fluid causes crash of Blender

Fluid: Additional fix for relative cache paths

Fluid: Fix T72971

Incorporated suggestions from the task discussion

Fluid: Moved grid reset loop for inner obstacle cells from blenkernel code into Mantaflow

Having this loop in directly Manta is faster and potentially fixes issues T72783 and T72894.

Fluid: Additional fix for relative cache paths

Added missing conversion from relative to absolute paths.

Fluid: Fix for relative cache paths

Relative paths in the cache are no longer converted into absolute paths automatically.

Fluid: Updated Mantaflow source files

The memory leak described in T72498 has been fixed in Mantaflow, the updated files should reflect this in Blender.

Fix T71690: Skip enum item separators in uiItemEnumR_string_prop

Reviewers: campbellbarton

Differential Revision: https://developer.blender.org/D6589

Fluid: Fix T72971

Incorporated suggestions from the task discussion

Fluid: Moved grid reset loop for inner obstacle cells from blenkernel code into Mantaflow

Having this loop in directly Manta is faster and potentially fixes issues T72783 and T72894.

Fix crash with some hidden regions after previous commit

E.g. in the default "Animation" workspace this would crash.