Avoid gyroscope reorientation when moving

This looks like a bug in our tracking code. I'm following up with the team. In the meantime, you can set the pose of OVRCameraRig.trackingSpace to anything you like, which means you can subtract out any drift that you detect in the OVRCameraRig.trackerAnchor pose.

Example:

public class TrackerToOrigin : MonoBehaviour
{
	public OVRPose origin = OVRPose.identity;
	public bool useWorldSpace = true;

	void Awake()
	{
		var rig = GameObject.FindObjectOfType<OVRCameraRig>();
		rig.UpdatedAnchors += OnUpdatedAnchors;
	}

	void OnUpdatedAnchors(OVRCameraRig rig)
	{
		var oldPose = rig.trackerAnchor.ToOVRPose(!useWorldSpace);

		var offset = origin * oldPose.Inverse();

		if (useWorldSpace)
			offset = rig.transform.ToOVRPose() * offset;
		
		rig.trackingSpace.FromOVRPose(offset, !useWorldSpace);
	}
}

That seems to be a wonderful solution. I will test it asap and keep you informed. Thank you.

If you get a chance, it would help to have full logs from a run that encountered the drift. Can you run C:\Program Files\Oculus\Support\oculus-diagnostics\OculusLogGatherer.exe and PM me the resulting zip file for analysis?

I just sent you a complete reporting in MP. Thanks for your help !