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VertexAttrib in a display list?

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Hey, I'm working on getting bump mapping going, and can't figure out the best way to get the tangent & binormal to my shader. I saw glVertexAttrib stuff which looks pretty neat, but it seems like nVidia doesn't like it much? Also it doesn't look like I can put it in a display list unless my shader is already created and attached, and even then, who knows? Do people usually send this data over via a multitexcoord or some other method? Thanks!

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