This commit adds logic to convert between USD dome lights and Blender
world materials.
The USD dome light rotation is represented in a mapping node input to the
environment texture. If the dome light has a color specified in addition to
the texture map, the color will be converted to a vector multiply on the
the environment texture output.
I the imported USD has multiple dome lights, only the first dome light will
be converted to a world material.
Co-authored-by: kiki <charles@skeletalstudios.com>
Co-authored-by: Michael Kowalski <makowalski@nvidia.com>
Pull Request: https://projects.blender.org/blender/blender/pulls/121800
e1a6749b3d