Schotter - Georg Nees, 1968

let rows, cols;

let side = 20;

​

function setup() {

  setFrameRate(2);

  createCanvas(450, windowHeight);

  cols = Math.floor(400/side);

  rows = Math.floor((height-25)/side);

  background(255);

  angleMode(DEGREES);

}

​

function draw() {

  background(255);

​

  translate(25,25);

  stroke(0);

  strokeWeight(0.5);

  rectMode(CENTER);

  fill(255,255,255,0);

  for(var i = 0; i < cols; i++){

    for(var j = 0; j < rows; j++){

      push();

      x = side*i + side/2;

      y = side*j + side/2;

      if(j > rows/3){

        x+=random(-0.3*j,0.3*j)

        y+=random(-0.4*j,0.4*j)

      }

      translate(x , y);

      rotate(random(2*j));

      rect( 0, 0, side, side);

      pop();

    }

  }

  noLoop();

}