This one really isn't a bryce answer for me, but it works... You mentioned other 3D apps like max? What I tend to do a lot is do the line art in Illustrator, then import the .ai file into max and extrude it as a 3D mesh. I also do 98% of my text extrusions that way for 3D type also. Rhino will do it also, but Rhino prefers .dxf line art to .ai files. On a bit map or something similar, I do the line art on another layer over the bitmap, then delete the bitmap layer.

"I am a good person now and it feels... well, pretty much the same as I felt before (except that the headaches have gone away now that I'm not wearing control top pantyhose on my head anymore)"

• Monkeysmell