For my masters project in Bournemouth University(2010- 2011) I wrote a plugin for XSI which creates muscle on joints.This plugin was written in python.
This tool creates first property page which asks the user to give joints name and amount of controls neededfor creating one muscle with user specified name. On creation of the muscle it creates second property page which has the editable properties of the muscle created.The muscle's start and end point can be shifted and volume can be controlled and linked with joint specified with given axis. Separate volume control is added which enable the user to animate the muscle's volume with key frames.
This tool creates first property page which asks the user to give joints name and amount of controls neededfor creating one muscle with user specified name. On creation of the muscle it creates second property page which has the editable properties of the muscle created.The muscle's start and end point can be shifted and volume can be controlled and linked with joint specified with given axis. Separate volume control is added which enable the user to animate the muscle's volume with key frames.
Tool with muscle presentation when it reacts with the skin.