craig

PImage img;
float theta, setY;
int frames = 35, py;

void setup() {
  size(540, 540);
  img=loadImage("craig.gif");
  img.filter(INVERT);
}

void draw() {
  background(0);
  stroke(230);
  for (int x=0; x<width; x++) {
    float offSet = map(x, 0, width, 0, PI);
    float y = map(sin(theta+offSet*2), -1, 1, 0, 50);
    setY=height-y-py;
    line(x, height, x, setY );
  }
  blend(img,0,0,width, height,0,0,width, height,SUBTRACT);
  println(frameCount, setY);
  py+=5;
  saveFrame("image-###.gif");
  if (setY<-50) noLoop();
  theta += TWO_PI/frames;
}