nicoptere

//from https://math.stackexchange.com/questions/296794/finding-the-transform-matrix-from-4-projected-points-with-javascript/339033#339033
// and http://jsfiddle.net/dFrHS/1/

function adj(m) { // Compute the adjugate of m
    return [
        m[4]*m[8]-m[5]*m[7], m[2]*m[7]-m[1]*m[8], m[1]*m[5]-m[2]*m[4],
        m[5]*m[6]-m[3]*m[8], m[0]*m[8]-m[2]*m[6], m[2]*m[3]-m[0]*m[5],
        m[3]*m[7]-m[4]*m[6], m[1]*m[6]-m[0]*m[7], m[0]*m[4]-m[1]*m[3]
    ];
}

nicoptere

<style>
    html, body{
        width:100%;
        height:100%;
        overflow: hidden;
        top:0;
        left:0;
        margin:0;
        padding:0;
    }

nicoptere

/**
 * creates a noise on the specified 2d context's canvas
 * @ctx a 2d context
 * @rgba color code specifies which channels are affected (default = 0 )
 * @min noise lower bound ( >= 0 )
 * @max noise upper bound ( <= 0xFF )
 * */
function noise( ctx, rgba, min, max )
{

nicoptere

#target illustrator
var document = app.activeDocument;
var maxLength = prompt ("maximum length of a path", 10, "destroy them with lasers!");
for (i=0 ; i< document.pathItems.length; i++)
{
    var ipath = document.pathItems[i]
    if( ipath.hidden == true )continue;
    var l = 0;
    for( var j = 0; j < ipath.pathPoints.length - 1; j++ ){
      var p0 = ipath.pathPoints[j].anchor;

nicoptere

    var str = "# object mesh \n";
    g.toIndexed();

    var vs = g.getAttribute("position").array;
    var ind = g.getIndex().array;

    var precision = 6;
    for( var i = 0 ; i < vs.length; i+=3 ){

nicoptere

float hash( float n )
{
    return fract(sin(n)*43758.5453);
}

float noise( vec3 x )
{
    // The noise function returns a value in the range -1.0f -> 1.0f

    vec3 p = floor(x);

nicoptere

/*
from : http://en.wikipedia.org/wiki/Mersenne_twister
*/
let MT
let index
class PRNG {
  static setSeed(seed) {
    // Create a length 624 array to store the state of the generator
    MT = new Uint32Array(624)
    index = 0

nicoptere

/**
original code https://gist.github.com/Dan-Piker/f7d790b3967d41bff8b0291f4cf7bd9e 

need to declare the following:
uniform vec3 origin;
uniform float p;
uniform float q;
uniform float t;
*/

nicoptere

var MercatorPlane = function()
{

    // create the material
    var vs = "varying vec2 vUv;\nvoid main() {\n vUv = uv;\ngl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}";
    var fs = "uniform sampler2D map;\nvarying vec2 vUv;\n void main() {\nvec4 color = texture2D( map, vUv );\ngl_FragColor = color;\n}";
    var material = new THREE.ShaderMaterial({

        uniforms: {
            map: {  type: "t", value: null }

nicoptere

import {
  BufferAttribute,
  Group,
  InstancedBufferAttribute,
  InstancedBufferGeometry,
  Mesh,
  MeshStandardMaterial,
  Vector3,
} from "three";
import { GLTFLoader } from "three/examples/jsm/loaders/GLTFLoader.js";