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coda
08-21-2003, 02:51 AM
wanna know how to create 3D visualization of layers of materials, for instance i want to diaplay a structure containing 2 layers where the 2nd layer (on top of 1st layer) follows the suface shape of curve of the 1st layer?(ie the 2nd layer is not flat)

Rob The Bloke
08-24-2003, 05:34 AM
how about rendering the 2nd layer flat to an area, say 512x512 pixels. (use glViewport). If this is renderered to the back buffer only, it can then be read into a texture. You could then set the display to the full viewport size and render the 1st layer as geometry and apply the 2nd as a texture?

This kinda depends on exactly what you mean by rendering layers? of course I could just be misunderstanding and you may be simply asking about blending (look up glBlend() ), but then I don't know without more info.....