I have two questions that I've been wondering about for some time now.
I have been seeing more and more lately artists placing a reflective ambient occlusion in their reflectivity slot to occlude reflections. Their reasoning is that this is the physically correct way to do reflections and so you won't get a hall of mirrors effect. Is this correct? I understand the hall of mirrors thing, but what real world effect causes reflections to be occluded like this? Or is this simply an optimization/artistic choice?
I have also been told that glossiness needs to be mapped to an angle of view ramp like a facing ratio or fresnel effect because glossiness gets sharper the more of a glancing angle you are at. Is this correct and if so why? I understand an object gets more reflective the more perpendicular the point is to you, but is glossiness the same way too?
Thanks for any clarification!