float cnt;
BImage img;

void setup() {
  size(300,300);
  ellipseMode(CENTER_DIAMETER);
  rectMode(CENTER_DIAMETER);
  smooth();
  
  img=loadImage("menu.jpg");
}

void loop() {
  color c;
  
  background(200);
  translate(width/2,height/2);

  noStroke();
  scale(2);
  translate(-img.width/2,-img.height/2);
  
  rotateX(radians(cnt));
  rotateY(radians(cnt/2));
    
  for(int i=0; i<img.width; i++)
    for(int j=0; j<img.height; j++) {
       c=img.pixels[j*img.width+i];
       push();
       translate(i,j,brightness(c)*0.2);
       fill(c);
       ellipse(0,0, 2,2);
       pop();
    } 
     
  cnt++;
 }