I’m so glad if that helped! After posting here I tried a bunch of different ways to develop a more robust pattern for this …and eventually found that the key was SkeletonUtils.retargetClip. Here’s a fiddle using this method to apply two BVH animations to a gltf model: https://jsfiddle.net/shootTheLuck/09z5ywte/134/
Right now (r135) it looks like there is still no official example for retargeting an animation. I’d love to submit an example like this for the library if it would be welcome, but believe some things could use hashing out beforehand…especially a concern I have with the animation timing (the lines right after special note in the fiddle).
I’d look forward to any further discussion on this!