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Unity Shaders and Effects Cookbook by Kenny Lammers

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Creating an Anisotropic Specular type

Anisotropic is a type of Specular or reflection that simulates the directionality of grooves in a surface, and modifies/stretches the Specular in the perpendicular direction. It is very useful when you want to simulate brushed metals, not a metal with a clear, smooth, polished surface. Imagine the Specular you see when you look at the data side of a CD or DVD, or the way Specular is shaped at the bottom of a pot or pan. You will notice that if you carefully examine the surface, you will see that there is a direction to the grooves in the surface, usually the way the metal was brushed. When you apply a Specular to that surface, you get a Specular stretched in the perpendicular direction.

This recipe will introduce ...

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