SimplexNoise

A utility class providing noise functions.

The code is based on Simplex noise demystified by Stefan Gustavson, 2005.

Import

SimplexNoise is an addon, and must be imported explicitly, see Installation#Addons.

import { SimplexNoise } from 'three/addons/math/SimplexNoise.js';

Constructor

new SimplexNoise( r : Object )

Constructs a new simplex noise object.

`r`	A math utility class that holds a `random()` method. This makes it possible to pass in custom random number generator. Default is `Math`.

Methods

.noise( xin : number, yin : number ) : number

A 2D simplex noise method.

`xin`	The x coordinate.
`yin`	The y coordinate.

Returns: The noise value.

.noise3d( xin : number, yin : number, zin : number ) : number

A 3D simplex noise method.

`xin`	The x coordinate.
`yin`	The y coordinate.
`zin`	The z coordinate.

Returns: The noise value.

.noise4d( x : number, y : number, z : number, w : number ) : number

A 4D simplex noise method.

`x`	The x coordinate.
`y`	The y coordinate.
`z`	The z coordinate.
`w`	The w coordinate.

Returns: The noise value.

Source

examples/jsm/math/SimplexNoise.js