title: Explaining in Detail the ScnVector4 method
body: <p>I am using 3ds max for a long time and I know xyz axis. what I see in xcode in rotation the scnnode what made my mind blowed up is w component of scnvector4.</p>
  
  <p>Can someone explain in detail how to use this method because I searched a lot of time but I can't make my object spin as I desire. anyone can help to make him spin  to his back in 180 degree but I will appreciate if someone explain more for further rotations, Knowing that I saw this link but I didn't understand something.</p>
  
  <p><a href="http://www.cprogramming.com/tutorial/3d/rotationMatrices.html" rel="nofollow">http://www.cprogramming.com/tutorial/3d/rotationMatrices.html</a></p>