Currently we have options to transfer the paint mask, face sets, and
color attributes to the new mesh created by voxel remesh. This doesn't
make use of the generic attribute design, where it would be clearer to
transfer all attributes with the same methods. That's reflected in the
code as well-- we do duplicate work for the mask and vertex colors, for
example.
This commit replaces the transfer options with a single checkbox for
all attributes. All attribute types on all domains are transferred with
basically the same method as the "Sample Nearest" node from geometry
nodes-- they take the value from the nearest source element of the same
domain. Face corners are handled differently than before. Instead of
retrieving the mixed value of all the corners from the nearest source
vertex, the value from the nearest corner of the nearest face.
---
Some timing information, showing that when interpolating the same
data, the attribute propagation is significantly faster than before.
Edge and corner attributes would add some cost (edges more than
corners), but might not always be present.
Before
```
voxel_remesh_exec: 3834.63 ms
BKE_shrinkwrap_remesh_target_project: 1141.17 ms
BKE_mesh_remesh_reproject_paint_mask: 689.35 ms
BKE_remesh_reproject_sculpt_face_sets: 257.14 ms
BKE_remesh_reproject_vertex_paint: 54.64 ms
BKE_mesh_smooth_flag_set: 0.15 ms
```
After
```
voxel_remesh_exec: 3339.32 ms
BKE_shrinkwrap_remesh_target_project: 1158.76 ms
mesh_remesh_reproject_attributes: 517.52 ms
```
Pull Request: https://projects.blender.org/blender/blender/pulls/115116
Listing the "Blender Foundation" as copyright holder implied the Blender
Foundation holds copyright to files which may include work from many
developers.
While keeping copyright on headers makes sense for isolated libraries,
Blender's own code may be refactored or moved between files in a way
that makes the per file copyright holders less meaningful.
Copyright references to the "Blender Foundation" have been replaced with
"Blender Authors", with the exception of `./extern/` since these this
contains libraries which are more isolated, any changed to license
headers there can be handled on a case-by-case basis.
Some directories in `./intern/` have also been excluded:
- `./intern/cycles/` it's own `AUTHORS` file is planned.
- `./intern/opensubdiv/`.
An "AUTHORS" file has been added, using the chromium projects authors
file as a template.
Design task: #110784
Ref !110783.
Campbell Barton
Hans Goudey
Hans Goudey