와! 시공 아시는구나! 프로세싱

PImage a,b;
float rot=0.0,sp=0,size=300;
void setup(){size(500,500);stroke(255,64);
a = loadImage("a.png");b = loadImage("b.png"); delay(3000);
}
void draw(){
  clear();
  imageMode(CENTER);
  translate(width/2, height/2);
  rotate(rot);
  image(a,0,0,size,size);
  image(b,0,0,size,size);
  rot+=sp;
  sp+=0.002;
  size+=0.5+sp;
}