rift

PImage img, img2;
float theta, val=25;

void setup() {
  img = loadImage("http://media-cache-ak0.pinimg.com/736x/29/61/6a/29616ab98f10a5363606f3c5970fd72f.jpg");
  img2 = loadImage("http://media-cache-ec0.pinimg.com/736x/3d/a1/13/3da1137e089fbf3b58ddd88393cd3eb9.jpg");
  size(500, 500);
}

void draw() {

  image(img, 0, 0);
  colorMode(HSB, 100);
  loadPixels();

  val = map(sin(theta),-1,1,10,50);

  for (int x=0; x<width; x++) {
    for (int y = 0; y<height; y++) {
      float b = brightness(img.get(x, y));
      if (b > 100-val) {
        int i = y*width+x;
        pixels[i] = img2.get(x, y);
      }
    }
  }
  updatePixels();

  theta += (PI/10);

  //if (theta < PI*1.05) saveFrame("image-###.gif");

}

void keyPressed() {
  saveFrame("image-####.gif");
}