Yes you can use Bryce 2 Materials in Bryce 4.... in fact Bryce 4 is on my "To buy" list - I bought Bryce 2 a while back, and used that for.... oh a month before I went onto something else ^^ But I'm happy to say, everything on the Bryce 2 CD works in Bryce3... models, lighting, textures...e tc etc etc... However, I suppose when I finally buy full version of Bryce 4 it will have all of them in Bryce 4 format anyway and more ^^ FastTraxx - you made all them models in Rhino... impressive ^^.... however, what I was looking to do was import the NURBS from Rhino - meaning cutting down on the mesh amount. I have a model which is damn complexed - bery easy to make in Rhino, however when I important it to Bryce it is like using a 286 all over again ^^ ... I'm trying to get some other things working, someone said 3dmax imports NURBS, and in all honestly - I don't understand why Bryce doesn't - especially since it has Boolain functions in it. (sigh)