title: why does the camera have to stay at the origin in opengl
body: <p>So i'm learning openGL and one thing I find very strange is that the camera has the stay at the origin and look in the same direction. To achieve camera movement and rotation you have to move and rotate the entire world instead of the camera.</p>
  
  <p>My question is, why can't you move the camera? Does directx allow you to move the camera?</p>