Fractal Circles

var zoom = 1;

var color = 0;

​

function setup() {

  createCanvas(640, 400);

  noStroke();

}

​

function draw() {

  background(0)

  color = 0;

  translate(0, height / 2)

  circles(width * zoom)

  zoom *= 1.015;

  if (zoom > 2) { zoom = 1 }

}

​

function circles(w) {

  if (w > 15) {

    color += 10;

    fill(color);

    ellipse(w / 2, 0, w, w)

    circles(w / 2)

    push()

    translate(w, 0)

    ellipse(w / 2, 0, w, w)

    circles(w / 2)

    pop()

  }

}