//create new gaze casting children at the user's eyes
private void setupGazeCasters()
{
Transform leftCamera = GameObject.Find("FrontCameraStereo.Left").transform;
Transform rightCamera = GameObject.Find("FrontCameraStereo.Right").transform;
leftAlteredEye = new GameObject("leftAlteredEye").AddComponent <EyeGazeRayCaster>();
rightAlteredEye = new GameObject("rightAlteredEye").AddComponent <EyeGazeRayCaster>();
leftUnalteredEye = new GameObject("leftUnalteredEye").AddComponent <EyeGazeRayCaster>();
rightUnalteredEye = new GameObject("rightUalteredEye").AddComponent <EyeGazeRayCaster>();
leftAlteredEye.setLineMaterial(lineMaterial);
rightAlteredEye.setLineMaterial(lineMaterial);
leftUnalteredEye.setLineMaterial(lineMaterial);
rightUnalteredEye.setLineMaterial(lineMaterial);
leftAlteredEye.transform.SetParent(this.transform, false);
rightAlteredEye.transform.SetParent(this.transform, false);
leftUnalteredEye.transform.SetParent(this.transform, false);
rightUnalteredEye.transform.SetParent(this.transform, false);
leftAlteredEye.transform.localPosition = leftCamera.localPosition;
leftUnalteredEye.transform.localPosition = leftCamera.localPosition;
rightAlteredEye.transform.localPosition = rightCamera.localPosition;
rightUnalteredEye.transform.localPosition = rightCamera.localPosition;
}
//moves the altered gaze ray casters to both look at the correct point
//also returns the RaycastHit of the object we are looking at
private RaycastHit generatedAlteredGaze(EyeGazeRayCaster dominantEye, EyeGazeRayCaster subserviantEye)
{
RaycastHit dominantRaycastHit;
//if we hit something
if (dominantEye.rayCast(dominantEye.transform.forward, out dominantRaycastHit))
{
Quaternion previousRotatoin = subserviantEye.transform.localRotation;
//set the subserviant eye to look at that point
subserviantEye.transform.LookAt(dominantRaycastHit.point);
RaycastHit rayCastHit;
//if we hit anything
if (subserviantEye.rayCast(subserviantEye.transform.forward, out rayCastHit))
{
//check to see if ray castr towards selected point gives the same point (round a bout)
if (Vector3.SqrMagnitude(rayCastHit.point - dominantRaycastHit.point) > 0.0000001f)
{
//and reset the eye if that isn't the case
subserviantEye.transform.localRotation = previousRotatoin;
}
}
}
return(dominantRaycastHit);
}
//calculate the disparagy between the altered and unaltered gaze, and return the rotation needed for that to work
private Vector3 calculateDisparagy(EyeGazeRayCaster alteredRay, EyeGazeRayCaster unalteredRay)
{
return(alteredRay.transform.localEulerAngles - unalteredRay.transform.localEulerAngles);
}
