title: Each frame calculation vs pre-rendered bitmaps
body: <ol>
  <li>We create some MovieClips and use Motion Tween to animate them.</li>
  <li>We create some MovieClips and use Motion Tween to animate them, then render all frames as .png and create MovieClips with all those rendered .pngs. </li>
  </ol>
  
  <p>I guess second way take less time, because you skip tween calculation step. Which way of animation is more proper/fast? </p>