Wallpaper using loops

function setup() {
  createCanvas(500, 400, WEBGL);

  
}

function draw() {
  background(0);
  
  
  //for rotation
  rotateX(frameCount * 0.01);
  rotateY(frameCount * 0.01);

  noFill();
  stroke(255);
  
  //draw series of boxies that follows mouse
  for (let i = 0; i < 100; i++) {
    for (let j = 0; j < 150; j += 10) {
      box(mouseX, mouseY, 150);
    }
  }

  box(mouseX, mouseY, 100);
  box(mouseY, mouseX, 200);

  for (let i = 5; i < 100; i += 10) {
    for (let j = 10; j < 150; j += 50) {
      box(i, j, i + j);
    }
  }

  rotateX(frameCount * 0.01);
  rotateZ(frameCount * 0.01);
  //draw circle at center
  fill(0)
  stroke(0)
  circle(0,0,20)
}