int numPics =22;
PImage[] images = new PImage[numPics];
float[] xPos = new float [numPics];
float[] yPos = new float [numPics];
float[] zPos = new float [numPics];

void setup(){
   size(screen.width, screen.height,P3D);
  background(#ffffff);
 
  fill(255);
  stroke(255,0,0);
  rectMode(CENTER);

  for(int i=0; i<numPics; i++){
    xPos[i]=int(random(width));
    yPos[i]=int(random(height)); 
    zPos[i]=int(random(-850,50)); 
     String imageName = i + ".jpg";
    images[i] = loadImage(imageName);
  }

}

void draw(){
  
  background(0);

   int hawaii=0;
   translate(mouseX-screen.width/2,0,mouseY);
  for(int i=0; i<numPics; i++){
     if (hawaii<numPics){ 
        
       pushMatrix();
       translate(xPos[i], yPos[i], zPos[i]);
        image(images[hawaii],0,0); // static grid
       popMatrix();
       
        hawaii++;
      }
      else{
        hawaii=0;
    
      
   //translate(xPos[i], yPos[i], -5-);
  }
  //translate(0, 60, -5);
}
}