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.
- 2D & 3D sampling
- 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
To begin install the npm package fastnoise-lite with
Note FastNoise Lite does not support the node.js require(''); function. Instead, enable ES6 modules and import.
import FastNoiseLite from "fastnoise-lite";
let noise = new FastNoiseLite();// Create and configure FastNoiseLite object
let noise = new FastNoiseLite();
noise.SetNoiseType(FastNoiseLite.NoiseType.OpenSimplex2);
// Gather noise data
let noiseData = [];
for (let x = 0; x < 128; x++) {
noiseData[x] = [];
for (let y = 0; y < 128; y++) {
noiseData[x][y] = noise.GetNoise(x,y);
}
}
// Do something with this data...Since JavaScript does not support method overloading it has been simulated to make the user experience more continuous between language versions.
Some of the code has been changed to use switch statements since it provided a minor performance boost in some small frequently used places eg the _Hash methods.
Here is a template for the method overloading:
class FastNoiseLite {
/**
* JSdoc
*/
Method() {
let R2 = (Param1, Param2) => {
// do something 2D
}
let R3 = (Param1, Param2, Param3) => {
// do something 3D
}
if (arguments.lenght === 2) {
return R2(arguments[0], arguments[1]);
}
if (arguments.length === 3) {
return R3(arguments[0], arguments[1], arguments[2])
}
}
}