In some cases, you may want to re-initialize the data that Maya Muscle uses for its deformation. For example, when converting older cMuscleSystem files to Maya Muscle files, you must re-initialize the setup data on the Muscle deformer, otherwise it does not deform anything.

To re-initialize existing Muscle data

1. Select the meshes that have the Muscle deformer applied that you want to re-initialize.
2. Make sure your mesh is in its default rest pose.
3. Select Muscle > Skin Setup > Re-Initialize Setup Data on Muscle System from the main menu bar.

   The node is re-processed.