Free Unity 2022.3+ Shader: NoiseShader HLSL Perlin and Simplex Noise Library (Keijiro)

Overview

Keijiro Takahashi shares NoiseShader, a Unity package that provides gradient noise functions written in HLSL, most of them ported from the webgl-noise library by Stefan Gustavson and Ahima Arts. It includes 1D gradient noise, classic Perlin noise and periodic Perlin noise in 2D and 3D, simplex noise in 2D and 3D, and analytical derivatives of simplex noise.

The repository also holds a sample project with scenes that use the functions from Shader Graph and VFX Graph. The package targets Unity 2022.3 or later, installs through the Keijiro scoped registry, and is free under the MIT license.