navono

:: Read file "package.json" into variable string, removing line breaks.
set string=
for /f "delims=" %%x in (package.json) do set "string=!string!%%x"

rem Remove quotes
set string=%string:"=%
rem Remove braces
set "string=%string:~2,-2%"
rem Change colon+space by equal-sign
set "string=%string:: ==%"

kymckay

--[[
    Implemented as described here:
    http://flafla2.github.io/2014/08/09/perlinnoise.html
]]--

perlin = {}
perlin.p = {}

-- Hash lookup table as defined by Ken Perlin
-- This is a randomly arranged array of all numbers from 0-255 inclusive

digitalshadow

/* OpenSimplex Noise in C#
 * Ported from https://gist.github.com/KdotJPG/b1270127455a94ac5d19
 * and heavily refactored to improve performance. */

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;

namespace NoiseTest

KdotJPG

/*
 * OpenSimplex Noise in Java.
 * by Kurt Spencer
 * 
 * Tileable 3D version, preliminary release.
 * Could probably use further optimization.
 *
 * w6, h6, and d6 are each 1/6 of the repeating period.
 * for x, y, z respectively. If w6 = 2, h6 = 2, d6 = 2,
 * then the noise repeats in blocks of (0,0,0)->(12,12,12)

KdotJPG

/**
 * K.jpg's OpenSimplex 2, smooth variant ("SuperSimplex")
 *
 * More language ports, as well as legacy 2014 OpenSimplex, can be found here:
 * https://github.com/KdotJPG/OpenSimplex2
 */

public class OpenSimplex2S {

    private static final long PRIME_X = 0x5205402B9270C86FL;

Flafla2

public class Perlin {

	public int repeat;
	
	public Perlin(int repeat = -1) {
		this.repeat = repeat;
	}

	public double OctavePerlin(double x, double y, double z, int octaves, double persistence) {
		double total = 0;

Flafla2

public class Perlin {

	public static double OctavePerlin(double x, double y, double z, int octaves, double persistence) {
		double total = 0;
		double frequency = 1;
		double amplitude = 1;
		for(int i=0;i<octaves;i++) {
			total += perlin(x * frequency, y * frequency, z * frequency) * amplitude;
			
			amplitude *= persistence;

patriciogonzalezvivo

Please consider using http://lygia.xyz instead of copy/pasting this functions. It expand suport for voronoi, voronoise, fbm, noise, worley, noise, derivatives and much more, through simple file dependencies. Take a look to https://github.com/patriciogonzalezvivo/lygia/tree/main/generative

Generic 1,2,3 Noise

float rand(float n){return fract(sin(n) * 43758.5453123);}

float noise(float p){
	float fl = floor(p);
  float fc = fract(p);