Figur82

 let step = Math.floor(Math.random()*1000);

let sketchSize = 800;

numSteps = 512

let stepSize = Math.PI / numSteps;

​

function setup() {

  createCanvas(sketchSize, sketchSize);

  background(0);

  colorMode(HSB)

  pixelDensity(1);

}

function draw() {

  step++

  fill(0x00,0x80)

  rect(0,0,sketchSize, sketchSize)

  centerPoint = sketchSize / 2;

  for (i = 0; i <= TWO_PI - stepSize ; i += stepSize) {

    stroke((step/4 + i*35)%360,100,100)

    line(

      //I encourage you to change these values inside Sin/cos. I tried i*i, 2*i , 5*i, some of thema are quite good!

      sin(2 * i ) * sketchSize + centerPoint,

      cos(i ) * sketchSize + centerPoint, 

      //the numbers below are chosen because they are prime numbers and so this should delay repetition for as long as possible.

      sin(2 * i + step / (numSteps /  2753 * 1000)) * sketchSize / 4 + centerPoint,

      cos(i + step / (numSteps / 39439 * 10000)) * sketchSize / 2 + centerPoint)

  }

}

​