private void Update()
{
TobiiXR_GazeRay gazeRay = TobiiXR.EyeTrackingData.GazeRay;
if (gazeRay.IsValid && Physics.Raycast(gazeRay.Origin, gazeRay.Direction, out RaycastHit hit, 10f))
{
LastGazeRay = new Ray(gazeRay.Origin, gazeRay.Direction);
_bufferedGazePositions[_gazeBufferIndex] = hit.point;
int i = _gazeBufferIndex;
Vector3 averageGazePos = Vector3.zero;
for (int s = 0; s < _numFramesToBuffer; s++)
{
averageGazePos += _bufferedGazePositions[i];
i = (i + 1) % _numFramesToBuffer;
}
averageGazePos /= _numFramesToBuffer;
_gazeBufferIndex = (_gazeBufferIndex + 1) % _numFramesToBuffer;
GazePos = averageGazePos;
}
}
public void SetPositionAndScale(TobiiXR_GazeRay gazeRay)
{
RaycastHit hit;
var distance = _defaultDistance;
if (Physics.Raycast(gazeRay.Origin, gazeRay.Direction, out hit))
{
distance = hit.distance;
}
var interpolatedGazeDirection = Vector3.Lerp(_lastGazeDirection, gazeRay.Direction,
_smoothMoveSpeed * Time.unscaledDeltaTime);
var usedDirection = _smoothMove ? interpolatedGazeDirection.normalized : gazeRay.Direction.normalized;
transform.position = gazeRay.Origin + usedDirection * distance;
transform.localScale = Vector3.one * distance * ScaleFactor;
transform.forward = usedDirection.normalized;
_lastGazeDirection = usedDirection;
}