AI denoiser removing detail I've created a simple procedural wood texture for a ceiling fan I'm modeling. Unfortunately the usually excellent AI denoiser from 2.81 is smoothing out most of the texture details. Any suggestions for how to preserve the details better besides cranking up my samples a ton? Even at 1000 samples it washed out a lot of the details, though it was better. 

Here's comparison pics, with a evee render up top showing the wood detail and the denoised image at the bottom. 



And here's how I have my denoiser node setup based on tutorials I've seen (I'm not at all familiar with the compositor stuff so I keep wondering if there's something there I'm doing wrong).
AI Denoisers use algorithms to guess which pixels are fireflies, and what colour that pixel was supposed to be. The algorithms are limited to the data that it can collect from the Denoising Data and the surrounding pixels. Thus, if insufficient data has been passed to it (not enough samples), the denoiser will create a "washed out" effect where you're losing detail. In truth, the denoiser will almost always cause loss of detail, it's just that when the sampling is high enough, the loss of detail is negligible.

You haven't done anything wrong with the compositor nodes, you're going to have to increase the samples in this case. 

If you're worried about render times, check out this video by BlenderGuru. It was created pre-2.80, but much of the content is still relevant.