Hi,

I’m running into an orientation issue with a bicep muscle simulation using Otis. I’m currently using the Otto setup as a base.

When the character straightens its arms forward, the biceps incorrectly point sideways instead of up. Interestingly, if I use a point deform to attach the muscles directly to the bones, the orientation is correct.

When the character straightens its arms forward, the biceps incorrectly point sideways instead of up. Interestingly, if I use a point deform to attach the muscles directly to the bones, the orientation is correct.

If this were a Vellum muscle setup, I would normally resolve this by creating a muscle-to-bone constraint so it follows the skeletal rotation better. However, I'm not sure what the best approach is to fix this within Otis. I’ve experimented with a few workarounds but haven't had any luck yet.

Any tips or insights would be greatly appreciated.

Thank you!

Can you submit a ticket to support with a file attached please?