Module noise 

Coherent noise: the permutation table and the Perlin, simplex, and fractal Brownian motion algorithms, the bodies of the noise nodes and of their native lowerings.

Structs

PermTable

A permutation table for noise functions. Built from a seed at init time, immutable thereafter. The table is doubled (512 entries) to avoid modular indexing.

Functions

fbm_1d

1D fractal Brownian motion: octaves layers of Perlin noise, each at twice the frequency and half the amplitude of the last.

fbm_2d

2D fractal Brownian motion over Perlin noise, as fbm_1d.

perlin_1d_algo

Evaluate 1D Perlin noise at a given point.

perlin_2d_algo

Evaluate 2D Perlin noise at a given point.

simplex_2d_algo

Evaluate 2D simplex noise at a given point.