   What's the correct way to zoom a camera?
  Hi all,This is a noob question. I am trying to find the correction way to zoom my camera. I searched around basically found 2 options: first is to actually moved the camera backward or forward, and the second one is to change the fov.The first option sounds like a cheat to me...also if I'm inside a room I wouldn't want my camera to move out of it (let's say there's no collision test) by zooming in.So is changing FOV the correction way to zoom a camera? Do I simply change the fov param in my D3DXMatrixPerspectiveFovLH() call when constructing my projection matrix? I did a simple test and it seemed to work but I'm not sure that's the right way.Any suggestion is greatly appreciated!   
  When you "zoom in" with a camera (in real life), you're narrowing the FOV.  However, a close shot can also be obtained by moving the camera close to the subject.  The two different methods have different side effects - experiment to see which one you like the best for a given shot.   ;  I think the classic "looking through a gun scope" type of zooming is done by changing the FOV.I second rileyriley on this - play around with it until you get the effect you need.  For certain cinematics, it might be better to actually move the camera.  For other scenarios, change the FOV.   ;  Thank you both!   