void Update()
{
// Returns current state of the gaze
data = VarjoPlugin.GetGaze();
// Check if gaze data is valid and calibrated
if (data.status != VarjoPlugin.GazeStatus.INVALID)
{
switch (eye)
{
case Eye.both:
// Gaze data forward and position comes as 3 doubles: x,y,z. You need to construct a vector from them to a desired format.
gazeRayForward = new Vector3((float)data.gaze.forward[0], (float)data.gaze.forward[1], (float)data.gaze.forward[2]);
gazePosition = new Vector3((float)data.gaze.position[0], (float)data.gaze.position[1], (float)data.gaze.position[2]);
break;
case Eye.left:
gazeRayForward = new Vector3((float)data.left.forward[0], (float)data.left.forward[1], (float)data.left.forward[2]);
gazePosition = new Vector3((float)data.left.position[0], (float)data.left.position[1], (float)data.left.position[2]);
break;
case Eye.right:
gazeRayForward = new Vector3((float)data.right.forward[0], (float)data.right.forward[1], (float)data.right.forward[2]);
gazePosition = new Vector3((float)data.right.position[0], (float)data.right.position[1], (float)data.right.position[2]);
break;
}
// Fetch head pose
transform.position = VarjoManager.Instance.HeadTransform.position;
transform.rotation = VarjoManager.Instance.HeadTransform.rotation;
// Transform gaze direction and origin from HMD space to world space
gazeRayDirection = transform.TransformVector(gazeRayForward);
gazeRayOrigin = transform.TransformPoint(gazePosition);
// Raycast into world
if (Physics.SphereCast(gazeRayOrigin, gazeRayRadius, gazeRayDirection, out gazeRayHit))
{
// Use layers or tags preferably to identify looked objects in your application.
// This is done here via GetComponent for clarity's sake as example.
VarjoGazeTarget target = gazeRayHit.collider.gameObject.GetComponent <VarjoGazeTarget>();
if (target != null)
{
target.OnHit();
}
if (drawDebug)
{
Debug.DrawLine(gazeRayOrigin, gazeRayOrigin + gazeRayDirection * 10.0f, Color.green);
}
}
else
{
if (drawDebug)
{
Debug.DrawLine(gazeRayOrigin, gazeRayOrigin + gazeRayDirection * 10.0f, Color.white);
}
}
}
}
void RequestGazeCalDelayed()
{
VarjoPlugin.GazeData data = VarjoPlugin.GetGaze();
if (data.status != VarjoPlugin.GazeStatus.VALID)
{
GetComponent <VarjoExample.VarjoGazeCalibrationRequest>().RequestGazeCalibration();
}
}
void Update()
{
if (!calibrated)
{
VarjoPlugin.GazeData data = VarjoPlugin.GetGaze();
if (data.status == VarjoPlugin.GazeStatus.VALID)
{
calibrated = true;
endcription.Perform();
mooseAnimation.enabled = true;
}
}
}
void LogGazeData(VarjoPlugin.GazeData data)
{
// Get HMD position and rotation
hmdPosition = VarjoManager.Instance.HeadTransform.position;
hmdRotation = VarjoManager.Instance.HeadTransform.rotation.eulerAngles;
string[] logData = new string[18];
// Gaze data frame number
logData[0] = data.frameNumber.ToString();
// Gaze data capture time (nanoseconds)
logData[1] = data.captureTime.ToString();
// Log time (milliseconds)
logData[2] = (DateTime.Now.Ticks / TimeSpan.TicksPerMillisecond).ToString();
// HMD
logData[3] = hmdPosition.ToString("F3");
logData[4] = hmdRotation.ToString("F3");
// Combined gaze
bool invalid = data.status == VarjoPlugin.GazeStatus.INVALID;
logData[5] = invalid ? InvalidString : ValidString;
logData[6] = invalid ? "" : Double3ToString(data.gaze.forward);
logData[7] = invalid ? "" : Double3ToString(data.gaze.position);
// Left eye
bool leftInvalid = data.leftStatus == VarjoPlugin.GazeEyeStatus.EYE_INVALID;
logData[8] = leftInvalid ? InvalidString : ValidString;
logData[9] = leftInvalid ? "" : Double3ToString(data.left.forward);
logData[10] = leftInvalid ? "" : Double3ToString(data.left.position);
logData[11] = leftInvalid ? "" : data.leftPupilSize.ToString();
// Right eye
bool rightInvalid = data.rightStatus == VarjoPlugin.GazeEyeStatus.EYE_INVALID;
logData[12] = rightInvalid ? InvalidString : ValidString;
logData[13] = rightInvalid ? "" : Double3ToString(data.right.forward);
logData[14] = rightInvalid ? "" : Double3ToString(data.right.position);
logData[15] = rightInvalid ? "" : data.rightPupilSize.ToString();
// Focus
logData[16] = invalid ? "" : data.focusDistance.ToString();
logData[17] = invalid ? "" : data.focusStability.ToString();
//Debug.Log("Log HMD Pos: " + logData[3]);
//Debug.Log("Log HMD Rot: " + logData[4]);
}
private void GazeRay()
{
// Returns current state of the gaze
data = VarjoPlugin.GetGaze();
// Check if gaze data is valid and calibrated
if (data.status != VarjoPlugin.GazeStatus.INVALID)
{
switch (eye)
{
case Eye.both:
// Gaze data forward and position comes as 3 doubles: x,y,z. You need to construct a vector from them to a desired format.
gazeRayForward = new Vector3((float)data.gaze.forward[0], (float)data.gaze.forward[1], (float)data.gaze.forward[2]);
gazePosition = new Vector3((float)data.gaze.position[0], (float)data.gaze.position[1], (float)data.gaze.position[2]);
break;
case Eye.left:
gazeRayForward = new Vector3((float)data.left.forward[0], (float)data.left.forward[1], (float)data.left.forward[2]);
gazePosition = new Vector3((float)data.left.position[0], (float)data.left.position[1], (float)data.left.position[2]);
break;
case Eye.right:
gazeRayForward = new Vector3((float)data.right.forward[0], (float)data.right.forward[1], (float)data.right.forward[2]);
gazePosition = new Vector3((float)data.right.position[0], (float)data.right.position[1], (float)data.right.position[2]);
break;
}
// Fetch head pose
transform.position = VarjoManager.Instance.HeadTransform.position;
transform.rotation = VarjoManager.Instance.HeadTransform.rotation;
// Transform gaze direction and origin from HMD space to world space
gazeRayDirection = transform.TransformVector(gazeRayForward);
gazeRayOrigin = transform.TransformPoint(gazePosition);
gazeCircle.gameObject.transform.position = gazeRayOrigin + (gazeRayDirection * 7.0f);
ChangeGazeCircleSize(data.focusDistance);
// Raycast into world
if (Physics.SphereCast(gazeRayOrigin, gazeRayRadius, gazeRayDirection, out gazeRayHit))
{
if (drawDebug)
{
Debug.DrawLine(gazeRayOrigin, gazeRayOrigin + gazeRayDirection * 10.0f, Color.green);
}
HeatmapDataReceiver dataTarget = gazeRayHit.collider.gameObject.GetComponent <HeatmapDataReceiver>();
if (dataTarget != null)
{
dataTarget.ReceivePosition(gazeRayHit.point, gazeRayRadius);
}
GazeTargetPanel panelTarget = gazeRayHit.collider.gameObject.GetComponent <GazeTargetPanel>();
if (panelTarget != null)
{
panelTarget.OnGazeRayHit();
}
}
else
{
if (drawDebug)
{
Debug.DrawLine(gazeRayOrigin, gazeRayOrigin + gazeRayDirection * 10.0f, Color.white);
}
}
}
}
