I'm not sure but I believe that someone asked how to render in wireframe in Carrara. I figured how to. This may be very old news. But has some real possiblities for some cool renders. Goto to the render room select ZBuffer as your render engine, you'll get the options for either wireframe, goruad, sketch. It has some quarks though it seems it will render the background as the color of your U.I. and not the selecterd background color or backdrop color. Here's a compsite image a made.