Compared to Optix denoise, this is usually slower since there is no GPU acceleration. Some optimizations may still be possible, in avoid copies to the GPU and/or denoising less often. The main thing is that this adds viewport denoising support for computers without an NVIDIA GPU (as long as the CPU supports SSE 4.1, which is nearly all of them). Ref T76259
20 KiB
20 KiB