adp001 posted at 5:55 PM Sat, 22 October 2022 - #4447302

@odf: I think I found a little problem with Toni's eyes. In the corners, the mesh of the cornea seems to get too close to the one below it, so this apparently causes problems when using refraction.

Have a look at the cornea material Antonia loads with. The SuperFly shader uses a neat trick I learned from hborre, which makes only the rays leaving the cornea towards the camera refract, not the ones entering it. Doing refraction in both directions may seem more "correct", but that's assuming a smooth surface and infinitely many samples. :-) I think it's just making Cycles' job unnecessary hard.

If that does not help, I'd try increasing the subdivision level, and as a last resort scaling down the eyeball (but not the eye cover) a tad to increase the distance.

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