var a = 0

var scl = 30

function setup() {

  createCanvas(800, 600)

  background(0)

}

​

function draw() {

​

  background(0,10)

  stroke(255)

  noFill()

​

  for (var y = -20; y < height + scl*2; y += scl) {

    beginShape()

    for (var x = -20; x < width + scl*2; x += scl) {

    curveVertex(x,y+ sin(x / noise(x, y,a/130)) * t)

    }

    endShape()

  }

  t = sin(a) * 15

  a += 0.008

}