Hi,
I'm trying to do a series of shots through glass windows (specular materials). I want to add fake fog/atmosphere by making use of the z-depth pass. However, I can't find a setting to exclude certain materials from the z-depth calculation. Other render engines have a flag to exclude certain materials from 'mask' passes.
I know I can render this pass in a second render with minimal render settings but as this will be a series of shots I'm trying to reduce effort that is needed to get these shots done.
Is there a way to achieve this in one render?