This project was one I decided upon for my rigging based Independent study. My objective was to implement a muscle system into a relatively basic rig in order to achieve desirable deformations, and to also learn more about computer generated muscles. Each muscle of the Rhino has squash, stretch, jiggle, and skin sliding implemented. Each of these attributes were fine tuned to mimic the real life muscles of a Rhino. The mechanics of the rig are fairly straight forward; IK legs, IK/FK tail and neck, scapula/shoulder control, basic joint based facial rig, etc. Overall, I believe the integrated muscle system greatly enhances the deformations of this rig and also brings a sense of life and weight to the character.
Disclaimer: I did not create the original model for this rig.