The settings below show how I've used two different nodes connected together to get the required effect.
#3 The Iris
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The iris is the coloured part of the eye, and has a more complex setup than any of the other parts. The settings below show how I've used two different nodes connected together to get the required effect. |
| The first node is Math - colorramp which on it's own does nothing, but when the 3D Textures - clouds node is plugged into it you can see how it causes our different shades of green to mix nicely. |