Render has gray spots all over it I didn't use cycles render a long time and got a problem. If I use dark environment lighting, blender doesn't render it smooth. Maybe it happens because I'm using denoising, I don't really know.
So here is how it looks:

And the whole render look like this:

Gray spots mess up all render. I tried to search how to remove them, but still didn't find anything.
You could do these things:

You probably have too little samples in your render. Increase your samples and re-Render.

Render with &quot;Denoising Data&quot; or if you have it enabled, render without.


If you render with the old denoiser, render with the Intel Open Denoiser (The node in the compositor)

If that doesn`t help, please post a render without denoising.