Noise

var samplePerFrame = 5;

var numFrames = 100;

var shutterAngle = .6;

var recording = true;

var SEED;

var rad;

var nperiod;

var m;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  SEED = random(10,1000);

  background(100);

  rad = 0.5;

  nperiod = 4.0;

  m = 1100;

}

​

function draw() {

  background(0);

  noFill();

  stroke(255);

  beginShape();

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

    var p = 1.0*i/m;

    var x = p*width;

    var y = map(noise(SEED + rad*cos(TWO_PI*(nperiod*p)),rad*sin(TWO_PI*(nperiod*p))),-1,1,0,height);

    vertex(x,y);

  }

  endShape();

}