EI-Flores_Transparency/Transparency.pde
/*

Transparency. 

Move the pointer left and right across the image to change its position.
This program overlays one image over another by modifying the
alpha value of the image with the tint() function.

*/

PImage a, b;
float offset;

void setup() {
  size(431, 600);
  a = loadImage("angel.jpg");            // Load an image into the program
  b = loadImage("angel-of-death.jpg");   // Load an image into the program
}

void draw() { 
  image(a, 0, 0);
  float offsetTarget = map(mouseX, 0, width, -b.width/2 - width/2, 0);
  offset += (offsetTarget-offset)*0.05; 
  tint(255, 153);
  image(b, offset, 20);
}
