This patches rewrites the GPU shaders of curve nodes for easier future
development. This is a non-functional change. The new code avoids code
duplication by moving common code into BKE curve mapping functions. It
also avoids ambiguous data embedding into the gradient vectors that are
passed to vectors and reduces the size of uniforms uploaded to the
shader by avoiding redundancies.
This is needed in preparation for the viewport compositor, which will
utilize and extend this implementation.
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D14689
This patch moves some of the utility library shaders into a common
directory and makes the necessary renames across shaders. Additionally,
material-specific transform functions were moved outside of math utils
into a separate transform_utils.glsl file.
This is needed in preparation for the viewport compositor, which will
make use of some of those utilities and will require all material
specific bit to be removed out of those files.
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D14688
Add support for volume (OpenVDB) USD export:
- Allows to export both static and animated volumes.
- Supports volumes that have OpenVDB data from files or are generated in
Blender with 'Mesh to Volume' modifier.
- For volumes that have generated data in Blender it also exports
corresponding .vdb files. Those files are saved in a new folder named
"volumes".
- Slightly changes the USD export UI panel. "Relative Texture Paths"
becomes "Relative Paths" (and has separate UI box) as the
functionality will now apply to both textures and volumes. Disabling
of this option due to "Materials" checkbox being turned off has been
removed.
Reviewed By: sybren, makowalski
Differential Revision: https://developer.blender.org/D14193
Manifest Task: T95407
This patch adds a float3x3 class that represents a 3x3 matrix. The class
can be used to represent a 2D affine transformation stored in a 3x3
matrix in column major order. The class provides various constructors
and processing methods, which utilizes the existing mat3 utilities in
BLI. Corresponding tests were also added.
This is needed by the upcoming viewport compositor to represent domain
transformations.
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D14687
Related to T95616, the relationship between Image ID and ImBuf 'cached'
buffers can be fairly confusing when using the RNA API.
Reviewed By: campbellbarton, jbakker
Differential Revision: https://developer.blender.org/D14833
When the curve types array isn't allocated, the default type
is Catmull Rom. Because the type counts are calculated eagerly,
they must be in a valid state.
Regression caused by [0] which flushed selection from vertices -> edges,
causing additional edges to be selected. Now selected is flushed based
on the mode, instead of all elements. Note that these function names
could be improved to make it clearer how these flushing functions are
different.
Also skip flushing unless selection is performed.
[0]: 55c82d8380
Regression in [0] which is useful when applying modifiers as a shape-key
but not when applying modifiers which keeps the existing shape-keys.
[0]: 65c5ebf577
For consistency with the rest of Blender.
* Use a blank icon for "None" type, so the label aligns with the rest.
* Use "None" instead of "Nothing" for Kink type dropdown entry.
The previous docs for `normal_update` methods of `BMVert`, `BMEdge`,
`BMFace`, and `BMesh` were not clear on some behaviors. These
behaviors are listed in D14370. This commit updates the docs to be
clearer.
Reviewed By: Blendify
Differential Revision: https://developer.blender.org/D14370
The ID is not modified by this function, so it can be const.
Needed to tweak const correctness for original ID accessor as
well. Additionally, did the same for accessor of evaluated ID
for symmetry.
The root of the issue is that compositor is using refresh mechanism
to handle recalc.
The safest fix which does not require deep refactor is to check to
whether node space was tagged for refresh from listener (currently
it is listeners which are responsible for tackling compositor tree
recalc).
Differential Revision: https://developer.blender.org/D14856
While possible extra whitespace after all OBJ/MTL keywords was properly
skipped, it was not done for the "f" (face definition) keyword.
While at it, also support indented keywords, i.e. extra whitespace at
the beginning of the line.
There's a tiny bit of performance drop while importing (e.g. importing
blender 3.0 splash scene: 53.38sec -> 54.21sec on my machine). But
correctness is more important.
Reviewed By: Howard Trickey
Differential Revision: https://developer.blender.org/D14854
Support merging UV's that share the same vertex and are very close when
applying modifiers.
This is needed to prevent UV's becoming "detached" which can happen when
applying the subdivision surface modifier.
This regression was caused by [0] which removed selection threshold for
nearby coordinates. While restoring the UV selection threshold could be
done - some selection operations that walk around connected UV fans
wouldn't behave in a deterministic way (such as select shortest path).
There are also other cases where UV's may be compared without a
threshold such as tangent calculation and exporters which have their own
logic to handling UV's.
Also resolves T86896, T89903.
[0]: b88dd3b8e7
Reviewed By: sergey
Ref D14841
There are fancier possibilities for improvements, like taking ownership
of existing arrays in some cases, but this patch takes a simpler brute
force approach for now.
The first change is to move from the previous loop to using the new
`materialize_compressed_to_uninitialized` method on virtual arrays,
which adds only the selected values to the output. That is a nice
improvement in some cases, corresponding to the "Without Threading"
column in the chart below.
The next change is to call that function in parallel on slices of
the output. To avoid generating too much code, we can avoid
templating based on the type and devirtualizing completely.
The test input is a 4 million point grid, generated by the grid
primitive node. Color and 2D vector attributes were also transferred
to the points.
| Test | Before | Final No Threading | Final | Change |
| --------- | ------ | ------------------ | ------ | ------ |
| All Verts | 209 ms | 186 ms | 170 ms | 0.8x |
| 1% | 148 ms | 143 ms | 133 ms | 0.9x |
| All Faces | 326 ms | 303 ms | 87 ms | 0.27x |
| 1% Faces | 70 ms | 68 ms | 34 ms | 0.49x |
Differential Revision: https://developer.blender.org/D14661
