It's horrifying to me that such a beautiful piece of real-time rendering should be marred by herky-jerky camera movement. Please, people: life is too short to use gamepads to control first person games when you don't have to (i.e. on a desktop). Get a mouse+WASD going, crank up the mouse smoothing if it suits the mood of the piece (as it would here), and give us an elegant viewpoint to match the elegant environment.