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The index finger controlled trigger button is the most interesting feature of the Samsung Gear VR Controller. The trigger button on the controller does more than one function. Although the basic use of the index finger trigger button is shooting, it can also be used as a button to make the player hold an object in the virtual world. Normally, the shooting and holding function are seen only in high-end virtual reality systems such as HTC Vive and Oculus Rift.
==Tracking==
Gear VR Controller has [[IMU]]s for [[rotational tracking]] only. It does not have [[positional tracking]] like the [[Oculus Touch]]. The controller does improve the previously [[gaze]]-only input of the Gear VR. If the controller drifts, you can hold down the Home button on the controller at any time to quickly recenter it.
==Setting Up the Gear VR Controller==
