private void Update()
{
/**
* Press H to localize FOVE space -> Vive Space -> World Space
* The user's current head orientation will now be used as a reference for 0 degree yaw in world space
* The position of the user will now be shifted to the origin of world space
*/
if (Input.GetKeyDown(KeyCode.H))
{
// Check that headset vive tracker and controllers are both active
if ((IsHeadsetPositionTracked() && IsControllersConnected()) == false)
{
return;
}
// Check that fove is set up correctly
if ((FoveInterface.IsHardwareConnected() && FoveInterface.IsHardwareReady()) == false)
{
return;
}
// See how much we should rotate FOVE to get it to its proper Vive space
Vector3 leftControllerRotation = leftController.transform.localRotation.eulerAngles;
Vector3 rightControllerRotation = rightController.transform.localRotation.eulerAngles;
Vector3 averageControllerRotation = (leftControllerRotation + rightControllerRotation) / 2.0f;
Vector3 foveHmdRotation = FoveInterface.GetHMDRotation().eulerAngles;
Quaternion foveToViveRotationTransform = Quaternion.Euler(0.0f, (averageControllerRotation - foveHmdRotation).y, 0.0f);
Debug.Log("FoveToViveRotationTransform: " + foveToViveRotationTransform + averageControllerRotation);
yawOrientationOffset = foveToViveRotationTransform.eulerAngles.y;
// Shift everything back to center
personSetup.transform.rotation = Quaternion.Euler(0.0f, 0.0f, 0.0f);
personSetup.transform.position = new Vector3(0.0f, 0.0f, 0.0f);
// See how much we should rotate the Vive to get it into its proper world space
FoveViveToWorldSpace = Quaternion.Euler(0.0f, averageControllerRotation.y * -1.0f, 0.0f);
personSetup.transform.rotation = FoveViveToWorldSpace;
Vector3 scenePositionShiftAmount = transform.position * -1.0f;
personSetup.transform.position = new Vector3(
scenePositionShiftAmount.x,
personSetup.transform.position.y,
scenePositionShiftAmount.z);
// Log the current FOVE headset and Vive Tracker orientation
FoveHeadsetTareOrientation = FoveInterface.GetHMDRotation();
ViveTrackerTareOrientation = currentViveTrackerPose.rot;
// Everything is done
isHeadsetCalibrated = true;
Debug.Log("Finished setting up FOVE localization");
}
/**
* Press P to shift the user's current position to the center of world space
*/
if (Input.GetKeyDown(KeyCode.P))
{
ReCenterUser();
}
// Attempt to mitigate FOVE headset's yaw drift
if (driftCorrection)
{
CorrectHeadsetYawDrift();
}
else
{
yawDriftCorrectionOffset = 0.0f;
}
// Update the position and orientation of the headset
transform.localRotation = Quaternion.Euler(0.0f, yawOrientationOffset + yawDriftCorrectionOffset, 0.0f);
var eyePositionOffset = transform.localRotation * FoveInterface.GetHMDRotation() * trackerToEyePositionOffset;
transform.localPosition = currentViveTrackerPose.pos + eyePositionOffset;
// Rotate person setup to world space + any additional rotate offset specified by user
Vector3 currentPersonPosition = transform.position;
personSetup.transform.rotation = Quaternion.Euler(FoveViveToWorldSpace.eulerAngles + new Vector3(0.0f, rotateSetupDegree, 0.0f));
TeleportUser(currentPersonPosition);
}