title: Formula for a orthogonal projection matrix?
body: <p>I've been looking around a bit and can't seem to find just what I"m looking for. I've found "canonical formulas," but what's the best way to use these? Do I have to scale every single vertex down? Or is there a better way?</p>
  
  <p>A formula would really help me out, but I'm also looking for an explanation about the near and far z planes relative the viewer's position</p>