Entropy is a no-longer-available RenderMan-compliant renderer. It is a stand-alone if you want to program shader code by hand, which most of us -- me included -- don't probably do very well. I use it in conjunction with Rhinoceros and a lovely little free plug-in called RhinoMan. I IM'd you about some other things, FranOnTheEdge, but the gist of it is that I agree: I sure would have liked to have been able to do it in Bryce. My fault, probably, as the geometry is rather high-poly and may include some flaws because of my method in Wings. I just don't have time to fix it and try over for a week or two. My deadline is Friday, and I have about a bazillion other projects due this week, too.