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FastNoise Lite

FastNoise Lite is an extremely portable open source noise generation library with a large selection of noise algorithms. This library focuses on high performance while avoiding platform/language specific features, allowing for easy ports to as many possible languages.

This project is an evolution of the original FastNoise library and shares the same goal: An easy to use library that can quickly be integrated into a project and provides performant modern noise generation. See a breakdown of changes from the transition to FastNoise Lite here

If you are looking for a more extensive noise generation library consider using FastNoise2. It provides large performance gains thanks to SIMD and uses a node graph structure to allow complex noise configurations with lots of flexibility.

Features

2D & 3D
OpenSimplex2 Noise
OpenSimplex2S Noise
Cellular (Voronoi) Noise
Perlin Noise
Value Noise
Value Cubic Noise
OpenSimplex2-based Domain Warp
Basic Grid Gradient Domain Warp
Multiple fractal options for all of the above
Supports floats and/or doubles

Supported Languages

If you want to port FastNoise Lite to a new language create a pull request or discuss it on the discord linked above

Getting Started

Documentation

FastNoise Lite Web Preview App

Link: http://auburn.github.io/FastNoiseLite

A compact testing application is available for testing all features included in FastNoise Lite with a visual representation. This can be used for development purposes, testing noise settings and generating noise textures for export.

Source code can be found in the WebPreviewApp directory.

Performance Comparisons

Benchmarked using C++ version with NoiseBenchmarking

CPU: Intel 7820X @ 4.9Ghz
OS: Win10 x64
Compiler: clang-cl 10.0.0 -m64 /O2

Million points of noise generated per second (higher = better)

3D	Value	Perlin	(*Open)Simplex	Cellular
FastNoise Lite	64.13	47.93	36.83*	12.49
FastNoise (Legacy)	49.34	37.75	44.74	13.27
FastNoise 2 (AVX2)	494.49	261.10	268.44	52.43
libnoise		27.35		0.65
stb perlin		34.32

2D	Value	Perlin	Simplex	Cellular
FastNoise Lite	114.01	92.83	71.30	39.15
FastNoise (Legacy)	102.12	87.99	65.29	36.84
FastNoise 2 (AVX2)	776.33	624.27	466.03	194.30

Credits:

OpenSimplex2 for the OpenSimplex2 noise algorithm
@KdotJPG for implementing all the OpenSimplex algorithms and the Java port
CubicNoise for the Value (Cubic) noise algorithm
@Rover656 for creating the preview GUI and porting FastNoise Lite to C and HLSL.
@snowfoxsh for creating the JavaScript port.
@dotlogix for creating the GLSL port.
@ForeverZer0 for creating the Go port.
@Keavon for creating the Rust port.

License

Auburn/FastNoiseLite

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