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OpenGL and cylindrical texture mapping - Printable Version

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OpenGL and cylindrical texture mapping - spsweet - May 1, 2007 02:55 PM

Unfortunately cylindrical texture mapping isn't built into OpenGL. I would like to discuss algorithms on how to do it. I've been reading quite a bit of things about converting a point on the object into a point on my cylinder, and then converting that point on the cylinder into a point in texture space. I think I'm am not understanding some of the math. Would anyone care to talk about it? I understand that the cylinder essentially IS the texture map...but I don't see how to associate a point on it with a point on a 2D texture map.