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Pbuffer vs glCopyTexImage2D

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Hi, I was wondering how much pbuffer is faster then glCopyTexImage2D? Is it effective to use it (pbuffer) if I am making a soft shadow maps?

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Pbuffers are dead - long live framebuffer objects!

If your implementation supports it, please consider using this extension instead of pbuffers. If your implementation does not support it, check with your hardware vendor for a newer driver which might support it.

Whether CopyTexImage is faster or slower depends on your usage pattern and the implementation. As always the answer is: try both and see which works better for you. My money is on FBO's beating both CopyTexImage and pbuffers.

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Original post by gold
Pbuffers are dead - long live framebuffer objects!

If your implementation supports it, please consider using this extension instead of pbuffers. If your implementation does not support it, check with your hardware vendor for a newer driver which might support it.

Whether CopyTexImage is faster or slower depends on your usage pattern and the implementation. As always the answer is: try both and see which works better for you. My money is on FBO's beating both CopyTexImage and pbuffers.


All hail!

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