Render Pass for Volume Scatter Noise

Hello Everyone,

Please see image below - My thought was to blur the noise - and / or combine it with different renders using a different seed value.
My question is - What combination of render passes will give me the image showing up as the difference? Or, is the difference the only way to get it?


Basic Node Setup:


Your setup is fine. My way to go is the make 2 renders: without volume / with volume and all the objects in a black material (holdout or nothing). I prefer to separate because I can set different settings for each layers, remove or add objects casting volume shadow, etc.

Thanks for the reply VincentG - I just thought there would be a way to pull the information directly. World settings - volume scatter material and the effects would seem to be passed from the environment pass.

Thanks Again!

Maybe there is! But I don’t know it. Anyone?