​

var sizeSquared = 600;

var slashSize = 12;

​

var x = 0, y = 0;

var xoff = 0, yoff = 0;

​

function setup()

{

  createCanvas(sizeSquared, sizeSquared);

  background(0);

}

​

function draw()

{

  var n = noise(xoff, yoff) * 100;

​

  stroke(n * 255 / 100);

​

  if(n < 50)

  {

    line(x, y, x + slashSize, y + slashSize);

  }

  else

  {

    line(x, y + slashSize, x + slashSize, y);

  }

​

  x += slashSize;

​

  xoff += inc;

​

  if(x >= sizeSquared)

  {

    x = 0;

    xoff = 0;

​

    y += slashSize;

    yoff += inc;

  }

}