Noise Shader Library for Unity
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This is a Unity shader library that contains several gradient noise functions.

From webgl-noise written by Stefan Gustavson and Ahima Arts:

https://github.com/ashima/webgl-noise

- Classic Perlin noise (2D/3D)
- Periodic Perlin noise (2D/3D)
- Simplex noise (2D/3D)
- Analytical derivatives of simplex noise (2D/3D)

From K.jpg's SuperSimplex & FastSimplex repository:

https://github.com/KdotJPG/New-Simplex-Style-Gradient-Noise

- SuperSimplexNoise (3D)
- FastSimplexStyleNoise (3D)

The former ones are released under the MIT license, and the latter ones are
public domain (Unlicense). Please check the header comments for details.