Is there anyway to disable denoising on one texture or one object?

Title pretty much says it all. I have a scene with one object which has a startfield pattern on it. Everything else in the scene can benefit from denoising. Unfortunately, OPtix and Open Image denoise both turn the starfield into a poop smear. I would very much like to have Cycles NOT denoise that one object, preferably without getting into the compositor, as I am trying to keep the pipeline short and simple on this.

Thanks in advance for any help!

edited 900 trillion times for typos. I ahve not had enough caffeine…

By compositing and view layers.


Thanks, but not at all what I was looking for. Blender’s compositing is something I stay as far from as possible, especially when I need the workflow / pipeline to be as short as possible, as mentioned in my first post.

I was beginning to suspect there’s no way to make one piece of geometry immune from denoising.

I think I may have found another solution anyway.

Thanks anyway. =)

I think it’s easier to do in compositing.

Can you share it to us btw?

Not really.