Oh ok. I can't help too much with the problem if it's produced only on the PC. Perhaps some other handy OpenGL-familiar coders can help to find the problem. Otherwise you could just go through and comment out various sections and see if you can find which part is wrong. I'm glad it works okay on the Macs. Since OpenGL is *supposed* to be standard on all implementations, and this doesn't use any extra extensions, I would've thought it should work the same on the PC. But you know how Microsoft can be ;-D Having said that the software rendered on my iBook has different default state than the hardware driver on my iMac.
Nicolas - the twist is just your average `twirl` or `spin` image-processing effect. Load the standard plain square image into whatever image processing software, for example Gimp or Photoshop, and just apply the filter to it. Simple as that. Other filters of interest for effects are ripple and wave effects.
Nicolas - the twist is just your average `twirl` or `spin` image-processing effect. Load the standard plain square image into whatever image processing software, for example Gimp or Photoshop, and just apply the filter to it. Simple as that. Other filters of interest for effects are ripple and wave effects.