function setup() {

  createCanvas(windowWidth, windowWidth);

q = windowWidth*0.8;

  slider = createSlider(15, 50, 25, 3);

  slider.position(10, windowWidth+10);

  slider.style('width', '80px');

​

}

t = a = b = n = 0;

draw = (_) => {

  t += 0.005;

  background(125, q);

  let val = slider.value();

  for (a = 0; a < q; a += val)

    for (b = 0; b < q; b += val) {

      n = TAU * (t + sin(TAU * t - dist(a, b, q / 2, q / 2) * 0.01));

      fill(255,0,0,125);

      circle(a + 20 * sin(n), b + 20 * cos(n), noise(a * 0.01, b * 0.01) * 30);

    }

}; 

​

​

​

//https://twitter.com/incre_ment/status/1398707518918983682?s=20

​