btw there is some movement going on with the Cg to GLSL profiles http://developer.nvidia.com/forums/index.php?showtopic=853 so the "show stoppers" I mentioned in the pm, might be gone with the next Cg runtime release. Still I think picking Dx is the better option for your project. (better support under windows which is…
Apply a white material to your object, and set your background colour to white. Select all the edges on your model and make them hard. In the vector render globals, use the defaults but also tick 'include edges', leave edge style set to 'outlines'. Should give you a nice quad wireframe that you can overlay on top of your…