I’m experimenting with a multi-layered eye with one ‘regular’ eyeball surrounded by a transparent sphere.
I have created this gap between these two spheres near the pupil and iris. The idea here is to eventually have the upper eyelid produce a nice shadow on the inner sphere over these two areas.
So, I made the eyeball using three simple materials assigned to three vertex groups. For the outer sphere I made a simple transparent material with raytraced transparency (derived from the Clear Glass tutorial). Everything looks as intended this far.
Problem is, when I render both spheres together the eyeball turns black. I can’t find any more settings to alter, so I’m hoping someone here could tell me about that secret button hidden in that invisible panel somewhere.
Thanks for all hints and suggestions.