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I'm surprised the SPUs were used for post-processing, cause whenever I try to do software rendering I get bottlenecked on fill rate quickly. I believe you, beca
by 01HNNWZ0MV43FF 2y ago
I'm surprised the SPUs were used for post-processing, cause whenever I try to do software rendering I get bottlenecked on fill rate quickly. I believe you, because I've seen it attested in many places, but I'm surprised by it.
- corysama 2y agoThe 1:1 straight-line behavior of fullscreen post processing is much easier to prefetch than triangle rasterization. And, in this case the SPUs and GPU used the same memory. So, no bandwidth advantage to the GPU. The best the GPU could do would be hiding latency better.