Eye Z

by NM-8 in Surfacing


Color the Iris, set its size, squeeze it if it's a dragon eye, set depth for a fake refractive effect and amplify the translucency of the Iris.This shader is meant to fake the complex geometry of an eyeball.

  • no Textures needed
  • no UV-Maps needed


easy three color system


intuitive parameters for pattern adjustment

continous cat-eye effect


fake depth
fake caustics

iris/pupil: the radius relative to the eyeball surface in percent.

bump: bumpintensity of the iris-noisepattern.

vector: the space of the mapping. Input>TextureCoordinate>Object will direct the iris in z-direction of the object coordinates.

As the stretchvalue squeezes the eye, you can animate it to transform the pupil from round to slit, like a human transforming into a dragon.

The pupil is oriented into the Z-Axis of objectspace. So eyes will look "down" initially.

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About the Creator: 

I am a 3D artist in the advertising & television industry for 25 years.
While working on projects and teaching animation at design college since 1998, i studied physics at the university of Vienna. That equipped me with a solid toolset of math to use in 3D workflows.

I started programming Blender add-ons and noding vector operations into shaders around 2012.

I love how Blender and Cycles offer a lot of opportunities to speed up rendering and fake depth into surfaces in many ways.

Sales 100+
Customer Ratings 3
Average Rating
Dev Fund Contributor
Published over 8 years ago
Blender Version 2.7x, 2.77, 2.78, 2.79, 2.8, 2.81, 2.82, 2.83, 2.9, 2.91, 2.92, 2.93, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6
Render Engine Used Cycles, Eevee
License Creative Commons
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