First of all, if this topic was already being discussed, sorry for that.
I am wondering if following scenario is possible somehow:
I have one object, of which i want to change the diffuse color after rendering. This very object is visible in reflection of surrounding objects as well.
While the first problem can be solved very easily via passes, I’m having really a hard time identifying and changing the color of the object visible in the reflections of the surrounding.
I was wondering if there might be something like a material cryptomatte but only identifying pixels of materials already being reflected.
Is there any possibility doing of achieving that?