In my James render above, I think the horizontal artifact cutting across the lower left iris is actually the top edge of the lower lid.

I think James eye weirdness behind the refraction lens is related to the artifacts we see on transparent objects behind the lens when they're in close proximity to other objects, as when intersecting. I think the James eyeball object is actually two spheres, an outer and an inner, very close to each other. The entire outer sphere is assigned the EyeTrans material and is totally transparent, used for specular highlights. While not intersecting per se, the entire outer eyeball sphere is close enough to the inner eyeball sphere to suffer this artifact. Similarly, the lower eyelash is transparent, close to the lower lid, and also exhibits the artifact, making the eyeball appear to penetrate the lower lid.

Message edited on: 05/28/2005 10:21