// Apr 2010
// http://www.abandonedart.org
// http://www.zenbullets.com
//
// This work is licensed under a Creative Commons 3.0 License.
// (Attribution - NonCommerical - ShareAlike)
// http://creativecommons.org/licenses/by-nc-sa/3.0/
// 
// This basically means, you are free to use it as long as you:
// 1. give http://www.zenbullets.com a credit
// 2. don't use it for commercial gain
// 3. share anything you create with it in the same way I have
//
// These conditions can be waived if you want to do something groovy with it 
// though, so feel free to email me via http://www.zenbullets.com

float xstart, xnoise, ystart, ynoise;

void setup() {

  size(500, 300, P3D);
  background(0);
  frameRate(24);	
  
  sphereDetail(8);
  strokeWeight(0.5);
  
  xstart = random(10);
  ystart = random(10);
}

void draw () {
  background(0);	

  xstart += 0.01;  	
  ystart += 0.01;	
  
  xnoise = xstart;
  ynoise = ystart;
  translate(250, 200, 0);
  rotateY(frameCount * 0.01);
  rotateZ(frameCount * 0.004);
  
  for (int y = -100; y <= 100; y+=5) {
    ynoise += 0.1;
    xnoise = xstart;
    for (int x = -100; x <= 100; x+=5) {
      xnoise += 0.1;
      drawPoint(x, y, noise(xnoise, ynoise));
    }
  } 
}

void drawPoint(float x, float y, float noiseFactor) {
  pushMatrix();
  
  translate(x * (1/noiseFactor), y, -y  * noiseFactor * 10);
  float edgeSize = noiseFactor * 15;
  float grey = 150 + (noiseFactor * 120);
  float alph = 150 + (noiseFactor * 120);
  fill(0, 20, grey, alph);
  rect(0,0, edgeSize, edgeSize/2);
  popMatrix();
  
  
}