Andrew,

There is a patch in the works now for Wireframe Pro that really helps with the start up performance on complicated meshes. Render time wasn't bad, but that first shading call where I cached the mesh was doing much more work than it needed to, so WFP would seem to hang at the beginning of the render. There are some other parts of the patch that are still under construction and I hope to have the whole thing ready for release in a few weeks.

Carrara's built in lighting model is Phong, a little more advanced than Gouraud. I'm currently finishing up an update for Shaders Plus that greatly improves on the Anisotropic lighting model and I am looking for other models to add to it. I've bookmarked a search on the oren-nayar-blinn and will have to look closer at that.

Regards,
Eric Winemiller
Digital Carvers Guild
3D plug-ins for Carrara
http://digitalcarversguild.com

Eric Winemiller
Digital Carvers Guild
Carrara and LightWave plug-ins