// Explode 
// Daniel Shiffman <http://www.shiffman.net> 

// Created 2 May 2005 
 
PImage img;       // The source image 
int cellsize = 2; // Dimensions of each cell in the grid 
int COLS, ROWS;   // Number of columns and rows in our system 
void setup() 
{ 
  size(200, 200, P3D); 
  framerate(30); 
  img = loadImage("eames.jpg"); // Load the image 
  COLS = width/cellsize;            // Calculate # of columns 
  ROWS = height/cellsize;           // Calculate # of rows 
  colorMode(RGB,255,255,255,100);   // Setting the colormode 
} 
void draw() 
{ 
  background(0); 
  // Begin loop for columns 
  for ( int i = 0; i < COLS;i++) { 
    // Begin loop for rows 
    for ( int j = 0; j < ROWS;j++) { 
      int x = i*cellsize + cellsize/2; // x position 
      int y = j*cellsize + cellsize/2; // y position 
      int loc = x + y*width;           // Pixel array location 
      color c = img.pixels[loc];       // Grab the color 
      // Calculate a z position as a function of mouseX and pixel brightness 
      float z = (mouseX / (float) width) * brightness(img.pixels[loc]) - 100.0f; 
      // Translate to the location, set fill and stroke, and draw the rect 
      pushMatrix(); 
      translate(x,y,z); 
      fill(c); 
      noStroke(); 
      rectMode(CENTER); 
      rect(0,0,cellsize,cellsize); 
      popMatrix(); 
    } 
  } 
}