Part 2 of the patch I wrote moving USD over to the new Attributes API
for Colors: https://projects.blender.org/blender/blender/pulls/105347
This patch adds support for more types of generic Mesh Attributes.
Attribute Types and Domains are converted to their USD counterparts
where possible. For example, float Attributes used for modifying
shader masks or int Attributes for grouping are now able to be
round-tripped. Due to the differences in the two systems some
conversions are necessary, but attempts were made to keep data
loss to a minimum.
If you export to USDA, you'll find the Attributes get prefixed with
a "primvars:" namespace; this is expected behavior and identifies
the exported Attributes as different from other USD Schema.
Not supported:
- Edge domain. There doesn't seem to be a proper conversion for
this in USD. One exception is for creasing and sharpness, but if
they are desired I can add them in a future patch.
Co-authored-by: kiki <charles@skeletalstudios.com>
Co-authored-by: Charles Wardlaw <cwardlaw@nvidia.com>
Co-authored-by: Hans Goudey <h.goudey@me.com>
Co-authored-by: Charles Wardlaw <kattkieru@users.noreply.github.com>
Co-authored-by: Michael Kowalski <makowalski@nvidia.com>
Pull Request: https://projects.blender.org/blender/blender/pulls/109518
cf5666345d