Unity3d relative gyroscope demo

GyroTest

using UnityEngine;


/// <summary>
/// Gyroscope demo. Attach to a visible object or camera.
/// </summary>
public class GyroTest:MonoBehaviour {

	Quaternion origin=Quaternion.identity;
	
	
	void Start() {
		Input.gyro.enabled=true;
		origin=Input.gyro.attitude;
	}
	
	
	void Update() {
		// reset origin on touch or not yet set origin
		if(Input.touchCount > 0 || origin == Quaternion.identity)
			origin=Input.gyro.attitude;

		transform.localRotation=Quaternion.Inverse(origin)*Input.gyro.attitude;
	}


	void OnGUI() {
		GUILayout.Label(origin.eulerAngles+" <- origin");
		GUILayout.Label(Input.gyro.attitude.eulerAngles+" <- gyro");
		GUILayout.Label(Quaternion.Inverse(Input.gyro.attitude).eulerAngles+" <- inv gyro");
		GUILayout.Label(transform.localRotation.eulerAngles+" <- localRotation");
	}

}