Where is the denoise option in 2.90? I was using the denoise option in Blender 2.8, but cant seem to find it in 2.90. The documentation refers to the &quot;Render Layers&quot; but it doesn't seem to be there either.

When I open an older project that was created with 2.8 in 2.9, the denoise option is there and works fine.
is there a setting i need to check to enable the feature by default in new files?
The denoiser options are in the Properties Window &gt; Render settings &gt; Sampling &gt; Denoising.

You can choose what kind of denoiser to use.

NLM is the original denoiser (native non-local denoiser), that runs on any computing device.
OpenImageDenoiser is Intel Open Image Denoiser, that runs on CPU
In this section you can enable the viewport denoising as well.