/** * Pointillism * by Daniel Shiffman.  *  * Mouse horizontal location controls size of dots.  * Creates a simple pointillist effect using ellipses colored * according to pixels in an image.  */ PImage a;void setup(){  a = loadImage("eames.jpg");  size(200,200);  noStroke();  background(255);  smooth();}void draw(){   float pointillize = map(mouseX, 0, width, 2, 18);  int x = int(random(a.width));  int y = int(random(a.height));  color pix = a.get(x, y);  fill(pix, 126);  ellipse(x, y, pointillize, pointillize);}