It can be done, if optimized correctly, but you still won't be able to beat hardware even in simple things like alpha-blending. However, doing it in software can have its own advantages: since you don't stall the pipeline of using the texture you just rendered to, you can use this to create all kinds of motion blur, gaussian blur, fractal, distortion and other effects.Originally Posted by jdarling
P.S. Can I ask what are you using SSE/SSE2 for?
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