On Mon, 14 Jun 2010, Ben Baker-Smith wrote:
It seems to me that the most efficient way of doing this would be with a custom GLSL shader.
depends what you need to use the result for. If it has to be used by a pix-object, do you feel like redownloading the result of the GLSL back into the CPU-RAM ?
_ _ __ ___ _____ ________ _____________ _____________________ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801