> I'm certainly not a great expert in OpenGL, but accumulation buffers > can be quite handy. It seems highly unlikely that I'm the only one using > them. Besides you can find a simple tricks with the accumulation > buffers in every openGL book. I think the more common way is to use frame buffer objects for this nowadays. They more flexible and closer to how the hardware works. I think accumulation buffers are going to be removed in OpenGL 3, but I haven't checked the latest spec.
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