noiseloop

int step=2, frames=300;
float xOff, yOff, theta, sx, sy;

void setup() {
  size(540, 400);
  //colorMode(HSB, 360, 100, 100);
  createStuff();
  sx = random(10000);
  sy = random(1000);
}

void draw() {
  createStuff();
  theta += TWO_PI/frames;
  //if (frameCount<=frames) saveFrame("image-###.gif");
}

void keyPressed() {
  save(random(123)+".jpg");
}

void mouseReleased() {
  background(0);
  sx = random(200);
  sy = sx + random(10000);
  createStuff();
}

void createStuff() {
  xOff = sx;
  for (int x=0; x<width; x+=step) {
    yOff = sy;
    for (int y=0; y<height; y+=step) {
      int col = (int) map(noise(xOff+sin(theta), yOff+cos(theta), sin(theta)), 0, 1, 0, 255);
      fill(col,50,80);
      noStroke();
      rect(x, y, step, step);
      yOff += 0.005;
    }
    xOff += 0.05;
  }
}