title: Can you use canvas.getContext('3d')? If yes, how?
body: <p>I read about the canvas tag in HTML5, and always saw <code>getContext('2d')</code>.<br>
  The parameter is '2d', so isn't there another possibility like '3d'?<br>
  And, how could you use that? I tried 3D before, but didn't really understand (due to a non-explaining tutorial). Any Tutorials?</p>