I was trying to create an eye texture for a cyborg. I got the basic colours right, but then I couldn't get the iris or the pupil right. I was trying to create a sort of 'camera lense' effect. I'd been using the figure for a long time but had only used eye mat preset poses and didn't know what a sclara was! I seperated a V4 eye into it's material groups. I then noticed that the Pupil is concave, a dish shape. Looking at the iris mesh I'd not expected that shape either! The first two textures from the left are transparent and reflective. I used a standard texture map to demonstrate textures in a common render. The main thing I was trying to represent here was the shape of the pupil and iris- It could be possable to get a new effect with textures on these - with aliens and robots there is no limit... power up your imagination.