The NVIDIA AI denoiser is basically a black box that we're feeding with data on one side and a denoised image falls out of the other side. There's very little we can change about it, so this new option is basically "take it or leave it." We can however experiment a bit with the kind of data we're feeding it and also tune the blending factor between the original and the denoised image.
TBH we never originally intended the NVIDIA AI denoiser to be used for the production rendering. The only reason it is even included in the production rendering option is because we thought people might be interested in comparing it to the old denoiser.
Beware that NVIDIA documentation explicitly says that this denoiser is not suitable for animations. We kinda forgot to add that to the denoising mode tooltip (will be fixed in next daily).
Thanks for all the bug reports. We'll try to fix as much of them as possible for the next daily build.
Is it possible to expose some controls for new denoising?
The only thing we could expose is the blending factor between the original image and the denoised one. There are however some UI/UX problems how to expose this without causing more confusion/clutter to the UI. We hope to be able to settle on some "good enough for everybody" blending factor for IR denoising, so that we would not have to introduce new settings just for that.
With latest build, i'm experiencing repeating crashes 20-30 minutes into rendering. In all ocasions AI denoiser was running, although i don't know if it has something to do with crashes.
minidump(s)?