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Independent indices for arrays

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This is rather far fetched and I'm fairly certain that it isn't possible, but I figured that I'd ask just in case because it would be invaluable to my project. Is it possible to use different indices for each array (vertex array, texture coordinate array, etc.)? It's rather inconvenient having to use the same indices for all the arrays because I am doing a texturing effect (among other effects) which requires unique texture coordinates for each vertex of a mesh, but the rest of the information (normals, positions, etc.) is shared between vertices of several polygons. Right now I'm having to replicate all of that information creating unnecessarily large vertex buffers because it seems impossible to share some things and not others. Thanks, ~SPH

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