Very large file, but it almost works. https://sketchfab.com/models/011e9331614f479a96392cd29c196259
This rig has a bunch of stuff going on - including Maya Muscle System. I can almost get it to work on Sketchfab, but It has two issues that I can't figure out.
- there is a weird wobble with the blendshapes when I upload it file. (I tested with other rigs with similar results)
- Maya muscle, seems to mess up the material, I can't get it to go away!
Here is a clearer example: https://sketchfab.com/models/167afeff1484405a8c720bc691d5953c
I started out by converting the deformed Geo to a series of inbetween-blendshapes, there is a MEL script that does a nice job. https://www.creativecrash.com/maya/script/deformer-to-blendshape
After that smoothed the geo and deleted the non-deformer history on the skin - It seems fine except the file size get to be way too much!