Here is a brilliant code from the Example section of Processing site

 
PImage img;       // The source image
int cellsize = 2; // Dimensions of each cell in the grid
int columns, rows;   // Number of columns and rows in our system

void setup() {
  size(750, 500, P3D);
  img = loadImage("Mirror-pixels-Pattern1.jpg");  // Load the image
  columns = img.width / cellsize;  // Calculate # of columns
  rows = img.height / cellsize;  // Calculate # of rows
}

void draw() {
  background(0);
  // Begin loop for columns
  for ( int i = 0; i < columns; 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*img.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]) - 20.0;
      // Translate to the location, set fill and stroke, and draw the rect
      pushMatrix();
      translate(x + 200, y + 100, z);
      fill(c, 204);
      noStroke();
      rectMode(CENTER);
      rect(0, 0, cellsize, cellsize);
      popMatrix();
    }
  }
}


'Mouse horizontal location controls breaking apart of image and Maps pixels from a 2D image into 3D space.
Pixel brightness controls translation along z axis.'

please see how it works here: http://processing.org/learning/3d/explode.html

So my question: is it possible to adjust this code so that it manipulates 2 images instead of one?

I have image 1 and image 2 which are the same size,
i need to bring the pixels of image 1 the same way as if I used this code for image 2.
So that when I apply a new code for these two images
brighter pixels of not image 1 come up, but the pixels that situated on the same positions where the brighter pixels of image 2 are.

so image 2 should become the 'map' of positions for pixels of image 1

I've made a little draft to explain what i mean
hope it make sense



please ask if anything is unclear

I'm a very beginner in processing so if you could tell me how exactly i should change the code i'll be very grateful,

hope it's possible to do

Thank you in advance