bagginsbill: I'll repeat what I said before. Let me know how you think the iris and cornea should be shaped to work correctly with diffraction, and I'll make it so. The render you showed are certainly the most realistic I've seen.

I don't know why the iris seems to catch the light like a concave surface, but that's what I see. I can do the math until the cows come home, but I suck at Physics. So I won't try to predict what I should see.

-- I'm not mad at you, just Westphalian.