@motion-script/core / FractalNoiseFillProp

Interface: FractalNoiseFillProp

Defined in: attributes/shape/fill/implementations/fractal-noise.ts:39

Fractal (fBm) noise — the procedural material source.

Where NoiseFillProp is sparse per-pixel speckle (dust, static), this is a continuous field: several octaves of smooth noise summed at rising frequency and falling amplitude, which is what produces cloud, smoke, marble, wood, terrain and plasma rather than grain.

It is a fill, so it paints inside the shape's path and stacks with the rest of the fill array. It composes with the effect layer rather than duplicating it: duotone over it is marble, threshold over it is an organic matte, posterize over it is topographic banding, and displace pointed at the same look is water.

seed shifts the whole field, so tweening it drifts the pattern; tween offset instead to travel through it, which is what reads as flowing.

Properties

angle?

optional angle?: number

Defined in: attributes/shape/fill/implementations/fractal-noise.ts:56

Rotation of the field in degrees (default 0).

basis?

optional basis?: FractalNoiseBasis

Defined in: attributes/shape/fill/implementations/fractal-noise.ts:42

Which noise function the octaves come from (default 'simplex').

blend?

optional blend?: "color" | "multiply" | "screen" | "overlay" | "darken" | "lighten" | "color-dodge" | "color-burn" | "hard-light" | "soft-light" | "difference" | "exclusion" | "hue" | "saturation" | "luminosity" | "normal"

Defined in: attributes/shape/fill/implementations/fractal-noise.ts:64

colors?

optional colors?: Color[]

Defined in: attributes/shape/fill/implementations/fractal-noise.ts:58

Colours the 0–1 field maps onto, low to high (default black → white).

contrast?

optional contrast?: number

Defined in: attributes/shape/fill/implementations/fractal-noise.ts:62

Steepen (>1) or flatten (<1) the field before the ramp (default 1).

frequency?

optional frequency?: number | Vector2

Defined in: attributes/shape/fill/implementations/fractal-noise.ts:46

Cycles of the first octave across the shape — a number, or per-axis (default 3).

gain?

optional gain?: number

Defined in: attributes/shape/fill/implementations/fractal-noise.ts:50

Amplitude multiplier per octave; below 1 the detail fades in (default 0.5).

lacunarity?

optional lacunarity?: number

Defined in: attributes/shape/fill/implementations/fractal-noise.ts:48

Frequency multiplier per octave (default 2).

octaves?

optional octaves?: number

Defined in: attributes/shape/fill/implementations/fractal-noise.ts:44

How many octaves are summed, 1–8 (default 4). Each one doubles the cost.

offset?

optional offset?: Vector2

Defined in: attributes/shape/fill/implementations/fractal-noise.ts:54

Pan through the field, in cycles. Animate to make the pattern flow.

opacity?

optional opacity?: number

Defined in: attributes/shape/fill/implementations/fractal-noise.ts:63

seed?

optional seed?: number

Defined in: attributes/shape/fill/implementations/fractal-noise.ts:52

Field offset — random-access into the noise. Animate to drift.

stops?

optional stops?: number[]

Defined in: attributes/shape/fill/implementations/fractal-noise.ts:60

Positions of each colour in 0–1 (default evenly spaced).

type

type: "fractalNoise"

Defined in: attributes/shape/fill/implementations/fractal-noise.ts:40