Hi,
missing rendering per pass, shadows, deth, ref, diffuse, ao.... very important !
i work with blender, can you create a plugin for users blender ?
Florian,
and an option to switch between "textured" mode to "clay"
Some of those passes will be in KeyShot 4 Pro.
As far as a clay rendering goes, simply drag and drop a "clay material" onto the top level of the assembly in the scene tree. Render it out, and then select UNDO to get back to the original textured setup. Or duplicate the model and only work with the one you want, and hide the other one.