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Sample a projected texture in a vertex program??

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im pretty sure to USE it in a vertex program
you just multiply the texcoords by a projection matrix (which this usually ISNT the actual projection matrix)

that should work easy as pi, just bind the prjection texture to
the second TMU and do what i said.

to sample, you need a 9.x generation card with
ARB_fragment_program. take a sample from the texels 1 or 2
pixels a radius from the current texel and average them
(ie, a bilinear filter)

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