fontenot@rice.edu (Dwayne Jacques Fontenot) (04/01/91)
Hello, I have just uploaded a chess set in rayshade 4.0 format to the /incoming directory at weedeater.math.yale.edu. These files are in *.def.ray format. /* * pawn chess piece -- from version 2.0 OFF chess set by Randy Brown * (c) Randy Brown, OK to distribute if copyright/author appears * converted to rayshade format by Dwayne Fontenot 3-91 * Randy Brown, brown@cs.unc.edu * Dwayne Fontenot, fontenot@comet.rice.edu */ I got these files in the OFF format with the same place I got vort 2.0. I wrote some simple tools to scale them to unit size, calculate vertex normals, turn them into triangles and output them in rayshade 4.0 phong shaded triangle format. These are really beautiful chess pieces; my compliments to Mr. Brown. Note that these are much better than the version 1.0 set that comes in the vort distribution in the /movies/chess directory. The new set has 3-4 times the number of polygons in the old set. For those of you that use vort 2.0 (which reads OFF files directly), I also have generated the *.vnorm files -- so let me know if you want them. If there is any interest, I can do the same for all the geometry I have, which right now includes all the OFF files I could find. If anybody has a better way of calculating vertex normals for general polyhedrons (I am currently just averaging the normals of all the adjecent polygons) please let me know. Also, I am looking for cool things to do with vertex *colors*, I don't think rayshade 4.0 suports this but vort 2.0 might and another system I'm working on does. Finally, I am slowly learning how to use the texturing functions in rayshade 4.0. I could really use some pointers. I would *really* like some cool examples -- especially on the functions that use fBm, these have lots of parameters. Thank you for your time, Dwayne Fontenot (fontenot@comet.rice.edu) Rice Advanced Visualization Lab (RAVL)