let rez=0.005;

​

​

function setup() {

    createCanvas(windowWidth, windowHeight);

    noStroke();

}

​

function draw() {

    for (var x = 0; x < width; x+=3) {

        for (var y = 0; y < height; y+=3) {

            var c = 255 * noise(rez * x, rez * y,t);

            fill(c);

            rect(x, y, 3, 3);

        }

      t+=0.0003;

    }

}

​

​