The Open Descent Foundation (ODF) is a community for developers, who want to help to create open source programs, tools, etc. for the famous games Descent1, -2 or -3. Everyone can join the ODF if he accepts the idea of writing open source programs.
To provide users with a customized rendering pipeline, right down to how the bounding code bounds. TRRT is about providing the rendering pipeline you want and need, whether you render at a professional or hobbyist level. Will be RenderMan compliant.