No matter who you ask, what GPU renderer they use, odds are they use NeatVideo on their renders.
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Why do you say NeatVideo is the worst way? From what I gather it’s an industry standard right now, and it has been for a couple of years. I test Optix with pretty much every Nvidia build, still not usable for animation.
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Optix was a bit better than Blender one, but it depends on the situation, the intel one seems to be far far better than any other denoiser I saw, but the option you are choosing, the NeatVideo, right now is the worst option because it does not take into account anything like the albedo, normals or other channels that will help avoid converting your image in a bunch of clouds, you should try optix if you can.Īnd regarding cross frame denoising, the Blender denoiser has cross frame denoising, it is just not implemented in the UI right now, but it can be used with cycles standalone after having rendered the pictures, it´s just that it cannot be used while rendering, it has to be used after the full animation has been rendered (to have before and after information to avoid flicker), and I think this is also de idea with other denoisers, but if you reach a certain point of sampling there is no flicker even without corss frame denoising, it was that way with the corona one too, and I suspect is the same situation for the majority of render engine implemented denoisers.
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I was in the iray point too, but when Corona released their denoiser it was pretty awesome and we were able to reduce the amount of samples a lot, Blender denoiser is a bit worse than corona, but it is a tremendous help, specially with picuture over 4k, we can render those images with a very low amount of samples and the denoiser works flawlessly.