Denoising based on Surfaces and Alpha Masks

Hello there, i do not know how denoising is applied now, but here is an idea on compositing based denoising.

In sort, generate a pseudocolour, 16 or 32bit image were each colour is a tangent surface of the same material, and use that as mask(s) to blur (gradually less and less, per rendering pass) all ambient lighting separately.

Then, multiply that on the unlit Texture channel and composite shadows , lighting etc on the top.

That can be done in realtime every ie. x seconds. So we have a denoised render but can wait for more ambience detail.

Will produce totally noise free renders (as far as ambient light is concerned) with sharp edges and sharp textures.

Reflections and other elements can be addressed separately.

It is just a quick concept, resembling how biased renderers maybe work, if you find it interesting you can comment, greetings.