noise

This module aims to to implement noise algorithms.

It uses the rand module in vlib to generate random numbers, so you may seed the generator as you see fit.

fn Generator.new() Generator

new is a function that return a new Generator struct

struct Generator {
mut:
	perm []int = rand.shuffle_clone(permutations) or { panic(err) }
}

Generator is a struct holding the permutation table used in perlin and simplex noise

fn (generator Generator) perlin2d(x f64, y f64) f64

perlin2d is a function that return a single value of perlin noise for a given 2d position

fn (generator Generator) perlin3d(x f64, y f64, z f64) f64

perlin3d is a function that return a single value of perlin noise for a given 3d position

fn (mut generator Generator) randomize()

randomize is a function that shuffle the permutation set inside the Generator struct will not shuffle if rand.seed is not changed

fn (generator Generator) simplex_1d(x f64) f64

simplex_1d returns a simplex noise value for a given x position

fn (generator Generator) simplex_2d(x f64, y f64) f64

simplex_2d returns a simplex noise value for a given x, y position

fn (generator Generator) simplex_3d(x f64, y f64, z f64) f64

simplex_3d returns a simplex noise value for a given x, y, z position

fn (generator Generator) simplex_4d(x f64, y f64, z f64, w f64) f64

simplex_4d returns a simplex noise value for a given x, y, z, w position