FastNoiseLite class Noise

A web-safe port of FastNoiseLite covering the OpenSimplex2, OpenSimplex2S, Perlin, Value, and Cellular noise types with None/FBm/Ridged/PingPong fractal layering, plus domain warp (domainWarp2/domainWarp3).

Output of getNoise2 and getNoise3 is roughly in the range -1, 1.

The GLSL half of this module (#include <noise.glsl> in a .fmat block) implements the same algorithms with the same tables; see the library doc of package:flutter_scene/noise.dart for the CPU/GPU agreement contract.

Constructors

FastNoiseLite({int seed = 1337})

Properties

cellularDistanceFunction ↔ CellularDistanceFunction

Distance function for NoiseType.cellular. Default CellularDistanceFunction.euclideanSq.

getter/setter pair

cellularJitterModifier ↔ double

Maximum distance a cellular point can move off its grid position. Default 1.0; values above 1 cause artifacts.

getter/setter pair

cellularReturnType ↔ CellularReturnType

Return value computed by NoiseType.cellular. Default CellularReturnType.distance.

getter/setter pair

domainWarpAmp ↔ double

Maximum warp distance from the original position. Default 1.0.

getter/setter pair

domainWarpFractalType ↔ DomainWarpFractalType

Octave layering for domainWarp2/domainWarp3. Default DomainWarpFractalType.none.

getter/setter pair

domainWarpType ↔ DomainWarpType

The warp algorithm for domainWarp2/domainWarp3. Default DomainWarpType.openSimplex2.

getter/setter pair

fractalType ↔ FractalType

The fractal layering mode. Default FractalType.none.

getter/setter pair

frequency ↔ double

Coordinates are multiplied by this before evaluation. Default 0.01.

getter/setter pair

gain ↔ double

Amplitude multiplier between octaves. Default 0.5.

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

lacunarity ↔ double

Frequency multiplier between octaves. Default 2.0.

getter/setter pair

noiseType ↔ NoiseType

The base noise algorithm. Default NoiseType.openSimplex2.

getter/setter pair

octaves ↔ int

Number of fractal octaves. Default 3.

getter/setter pair

pingPongStrength ↔ double

Strength of the ping-pong warp for FractalType.pingPong. Default 2.0.

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

seed ↔ int

Seed used for all noise types. Default 1337.

getter/setter pair

weightedStrength ↔ double

Octave amplitude weighting toward stronger detail. Default 0.0.

getter/setter pair

Methods

domainWarp2(double x, double y) → ({double x, double y})

2D warps the input position using the current domain warp settings.

domainWarp3(double x, double y, double z) → ({double x, double y, double z})

3D warps the input position using the current domain warp settings.

getNoise2(double x, double y) → double

2D noise at the given position using the current settings.

getNoise3(double x, double y, double z) → double

3D noise at the given position using the current settings.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited