Noise A variety of standardized noise algorithms for Deno.

Implemented Algorithms

• OpenSimplex noise: 2D, 3D, 4D
• Perlin noise: 2D, 3D, 4D
• Simplex noise: 2D, 3D, 4D
• Value noise: 1D, 2D, 3D, 4D

Usage

Fractal Noise

All shaping functions within fractal/ work with any noise-generating functions in the other modules, in order to stack and octave in a standardized way.

Function Types

All noise functions output a float between -1 and 1 ([-1, 1]).

type Noise1D = (x: number) => number;
type Noise2D = (x: number, y: number) => number;
type Noise3D = (x: number, y: number, z: number) => number;
type Noise4D = (x: number, y: number, z: number, w: number) => number;

Interpolations

By default, noise algorithms that rely on interpolating values (namely Perlin and value), default to using linear interpolation lerp, but their options allow for setting mix to override this. There are other interpolation functions within the math.ts module.

type Interpolate = (low: number, high: number, t: number) => number;

NoiseOptions

Base options for all noise functions. Contains depth (size of permutation table) and random (pseudo-random number generator in [0, 1], default: Math.random).

interface NoiseOptions {
  depth?: number;
  random?: () => number;
}