Ok, thanks. I'll have a look at coordsyst and your example. Unfortunatelly, the data is not prepared for triangle strips or fans. A year ago I was working on some heuristics for "stripping" unordered triangulations, but I'm afraid I abandoned the project... if the rendering is too slow, I will have to retake it. For now, I will just learn how to embed opengl calls in my soya code... Thanks for your info!
Luis.
