​

let black = false;

​

function setup() {

  createCanvas(400, 400);

  background(0);

  const intensity = op(getComp(nMouse(), "y"), "*", 0.03);

  const tracing = op(op(getComp(nMouse(), "x"), "-", 0.5), "*", 2);

  addEffects(

    noiseDisplacement(0.05, 1, intensity),

    blurAndTrace(tracing, 2),

    kaleidoscope(),

    godrays({ samplerNum: -1, lightPos: nMouse(), density: 0.5 })

  );

  addChannels(null);

}

​

function draw() {

  if (black) {

    fill(0);

  } else {

    fill(Math.random() * 255, Math.random() * 255, Math.random() * 255);

  }

  noStroke();

  ellipse(mouseX, mouseY, 20 + (r = 60 * Math.random()), 20 + r);

}

​

function mouseClicked() {

  black = !black;

}

​