The important issues are to mount the camera so that it is at the same level as the vector clip (baseball hat clip) or the Track Clip Pro (clip that mounts to your headset).
For example, Microsoft Flight Simulator 2004 and X support all six degrees whereas LockOn Flaming Cliffs only supports three (Yaw, Pitch, Z). Not all games do and not all support all axes of movement. To use TrackIR, a game must be designed to use it. That means it detects six axes of movement (referred to as 'degrees of freedom'). Thus, subsequent use of the term 'TrackIR' refers only to the vector device. This article will only cover the vector based TrackIR4 (or TrackIR3 with the vectoring add-on) version. It consists of a small camera that mounts on top of your computer monitor and detects three small reflectors either attached to a baseball cap or a clip version that fastens to the side of a headset. In case you don't know, TrackIR is a hands-free infrared tracking device that replaces joystick Point-Of-View hats and keyboard view keys allowing you to move your view in the game simply by moving your head.
