I'm working on a fairly simple project using the extrusion code, and using Processing.js to put it on the web.
Here's the address (though I wouldn't recommend going to it, because it makes my browser freeze up):

asciifriends.com/playinwdan2.html

No idea why this would be moving so slowly and eating up so much processing power (or whatever).
Any ideas, my wonderful nerds?
Here is my code:

1.   /* @pjs preload="4wD4N.jpg"; */
2.  
3. PImage extrude;
4. int[][] values;
5. float angle = 0;
6. void setup()
7. {
8.     
9.   size(640, 500, P3D);
10.  
11. 
    
12.   // Load the image into a new array
13.   extrude = loadImage("4wD4N.jpg");
14.   extrude.loadPixels();
15.   values = new int[extrude.width+25][extrude.height+25];
16.   for (int y = 0; y < extrude.height; y++) {
17.     for (int x = 0; x < extrude.width; x++) {
18.       color pixel = extrude.get(x, y);
19.       values[x][y] = int(brightness(pixel));
20.     }
21.   }
22. }
23. void draw() {
24.   background(221,252,84);
25.  
26.   // Update the angle
27.   if (mousePressed) {
28.     angle -= 0.1;}
29.     else {
30.       angle += 0.005;}
31.  
32.   // Rotate around the center axis
33.   translate(width/2, 0, -128);
34.   rotateY(angle); 
35.   translate(-extrude.width/2, 100, -128);
36.  
37.   // Display the image mass
38.   for (int y = 0; y < extrude.height+25; y++) {
39.     for (int x = 0; x < extrude.width; x++) {
40.       stroke(values[x][y]);
41.       point(x, y, -values[x][y]);
42.     }
43.   }
44. }