// Dartmouth CS 2, Winter 2009, Chris Bailey-Kellogg
// Notes 18 | Sketch 9

PImage baker, dart;

void setup()
{
  size(800,600);
  baker = loadImage("baker.jpg");
  dart = loadImage("dartmouth-hall.jpg");
}

void draw()
{
  float frac = ((float)mouseX)/width;  // how much green from baker?
  loadPixels();
  for (int i=0; i<pixels.length; i++) {
    float r = red(baker.pixels[i]);
    float gb = green(baker.pixels[i]);
    float gd = green(dart.pixels[i]);
    float b = blue(dart.pixels[i]);
    pixels[i] = color(r, frac*gb + (1-frac)*gd, b);
  }
  updatePixels();
}