USD model files

MotionCaptureROM.usdc

Converted bundled .wrl test model:

https://github.com/assimp/assimp/blob/master/test/models/WRL/MotionCaptureROM.WRL

to .usdc format via website:

https://imagetostl.com/convert/file/wrl/to/usd#convert

(As of Oct 2024, animations have not been verified as present or correct)