let scl = 20;

let cols, rows;

​

let zoff = 0;

​

function setup() {

  createCanvas(400, 400);

  cols = floor(width / scl);

  rows = floor(height / scl);

}

​

function draw() {

  background(220);

  let yoff = 0;

  loadPixels();

  for(let y = 0; y < height; y++){

    let xoff = 0;

    for (let x = 0; x < width; x++){

      let index = (x + y * width) * 4;

      let angle = noise(xoff, yoff, zoff) * TWO_PI;

      let v = p5.Vector.fromAngle(angle);

      xoff += inc;

      stroke(0);

      push();

      translate(x * scl, y * scl);

      rotate(v.heading());

      line(0, 0, scl, 0);

      pop();

    }

    yoff += inc;

    zoff += 0.002

  }

}

​