UnityNoise

Description

A Unity package that contains a collection of functions for generating various kinds of noise both on the CPU and GPU.

Available Noise Functions

Type	1D	2D	3D	4D
Perlin	✔️	✔️	✔️	✔️
Simplex	✔️	✔️	✔️	✔️
Voronoi	✔️	✔️	✔️	✔️
Cellular	✔️	✔️	✔️	✔️

All noise generators also include functions for generating a fractal version.

Installation

Option 1: Unity Package Manager

Open the Package Manager window, click on "Add Package from Git URL ...", then enter the following:

https://github.com/d3tonat0r/unitynoise.git

Option 2: Manually Editing packages.json

Add the following line to your project's Packages/manifest.json:

"com.example.package": "https://github.com/d3tonat0r/unitynoise.git"

Option 3: Manual Installation

You can also download this repository and extract the ZIP file anywhere inside your project's Assets folder.

Usage

In Scripts

All noise generators are found inside the UnityNoise namespace.

Example:

using UnityNoise;

-----

Vector3 pos = new Vector3(0.5f, 1.0f, 2.0f);

//Simple 3D Perlin 
float noise = PerlinNoise.Instance.GetNoise3D(pos);

//Fractal 3D Perlin (parameters: octaves, lacunarity, persistence, scale)
FractalSettings fractal = new FractalSettings(4, 2f, 0.5f, 1);
float noise = PerlinNoise.Instance.GetNoise3D(pos, fractal);

In Shaders

Add a reference to the Include file you want to use, e.g:

#include "Packages/com.github.d3tonat0r.unitynoise/Shaders/PerlinNoise.cginc"

Example:

//Simple 3D Perlin
float noise = GetPerlinNoise3D(position.xyz);

//Fractal 3D Perlin
FractalSettings settings;
settings.octaves = 4;
settings.persistence = 0.5;
settings.lacunarity = 2.0;
float noise = ComputePerlinNoise3D(position.xyz, settings);