fractal-noise

Fractal Noise

Fractal noise functions designed to be used with any noise generation algorithm.

• JSR package: @joshforisha/fractal-noise
• NPM package: fractal-noise

Examples

These images were all generated using basic value noise with width: 888 and height: 111.

makeCylinderSurface(width, height, valueNoise3D, {
  frequency: 0.04,
  octaves: 2,
});

makeCylinderSurface(width, height, valueNoise3D, {
  frequency: 0.06,
  octaves: 8,
});

makeLine(width, valueNoise1D); // (Replicated across y-axis)

makeLine(height, valueNoise1D, { frequency: 0.1 }); // (Replicated across x-axis)

makeRectangle(width, height, valueNoise2D);

makeRectangle(width, height, valueNoise2D, { frequency: 0.04, octaves: 8 });

API

interface Options { amplitude?; frequency?; octaves?; persistence? }

• amplitude?: number – Defaults to 1.0
• frequency?: number – Defaults to 1.0
• octaves?: number – Defaults to 1
• persistence?: number – Defaults to 0.5
• scale?: (x: number) => number – Defaults to undefined

makeCuboid(width, height, depth, noise3, options?): number[][][]

• width: number
• height: number
• depth: number
• noise3: (x: number, y: number, z: number) => number
• options?: Options = {}

Generates a three-dimensional noise field for a rectangular cuboid.

makeCylinderSurface(circumference, height, noise3, options?): number[][]

• circumference: number
• height: number
• noise3: (x: number, y: number, z: number) => number
• options?: Options = {}

Generates a two-dimensional noise field formed around a three-dimensional cylinder, such that it is continuous across the x-boundaries.

makeLine(length, noise1, options?): number[]

• length: number
• noise1: (x: number) => number
• options?: Options = {}

Generates a one-dimensional noise field.

makeRectangle(width, height, noise2, options?): number[][]

• width: number
• height: number
• noise2: (x: number, y: number) => number
• options?: Options = {}

Generates a two-dimensional noise field isolated to width and height (non-continuous noise).

makeSphereSurface(circumference, options?): number[][]

• circumference: number
• noise3: (x: number, y: number, z: number) => number
• options?: Options = {}

Generates a two-dimensional noise field formed on the surface of a three-dimensional sphere.