title: Getting direction vectors from 3d position and/or rotation
body: <p>I have a camera, in which, I've obtained its 3d position and its 3d rotation (in degrees). The coordinate system is as follows:</p>
  
  <p>The order is XYZ and is intrinsic.</p>
  
  <ul>
  <li>pitch</li>
  <li>roll</li>
  <li>yaw</li>
  </ul>
  
  <p>(aka right/front/top vector)</p>
  
  <p>With this information, how can I calculate the Up and Front vectors?</p>