Photorealistic Human Eye

Indoor lighting: Front View render

Indoor lighting: Side Profile render

Overcast lighting: Side Profile Render

Overcast lighting: Front View render

Displacement Geometry

UV Layout & Wireframes

The Scene Setup

Naming Scheme & Render Camera

32bit EXR Textures. (Iris texture from texturing.xyz.)
Linear workflow
Modelled in Zbrush, Maya,
Textured in Mari, Photoshop.
Rendered with Renderman For Maya.
Comped together in Photoshop.