Here are some compounds I’ve worked on. They’re free to use.
gb_miaCompounds – three RenderTree compounds (for Softimage) created to split out the mia_architectural and CarPaint materials into framebuffers. These have been developed from the compounds by Christian Freisleder (http://www.buntepixel.eu/downloads) and Guillaume Laforge (http://frenchdog.wordpress.com/2008/10/25/mia_x-renderchannels-an-autodesk-compound/)