Using math nodes, it's conceivable to create an iris shader that bulges the iris proportional to the camera's angle and simulate the lens effect (think angle-controlled displacement). 2. Different materials across the visible outer region of the eye to handle flow and reflection is obviously another issue but doable. 3. Also, the wet surface on eyes is not perfectly smooth like cueballs; the moisture lubricating them is essentially a thin mucous with a random texture to it that light catches (and then art directors airbrush smooth). Closeup photo references bear this out. Perhaps a very subtle fractal node could be added. BTW, face_off gets megaprops for making the cornea/iris edge blur properly in his render.

Forum: Poser - OFFICIAL

Subject: Maybe it's just me but...