protected override void WearableCallback(ref tobii_wearable_data_t data)
{
if (data.gaze_direction_combined_validity == tobii_validity_t.TOBII_VALIDITY_VALID)
{
var gaze = data.gaze_direction_combined_normalized_xyz;
X = gaze.x;
Y = gaze.y;
Z = gaze.z;
}
}
private void OnWearableData(ref tobii_wearable_data_t data)
{
CopyEyeTrackingData(LocalLatestData, ref data);
ReceivedDataThisFrame = true;
}
private static void CopyEyeTrackingData(TobiiXR_EyeTrackingData latestDataLocalSpace, ref tobii_wearable_data_t data)
{
latestDataLocalSpace.CombinedRay.IsValid = data.gaze_direction_combined_validity == tobii_validity_t.TOBII_VALIDITY_VALID && data.gaze_origin_combined_validity == tobii_validity_t.TOBII_VALIDITY_VALID;
latestDataLocalSpace.CombinedRay.Origin.x = data.gaze_origin_combined_mm_xyz.x * -1 / 1000f;
latestDataLocalSpace.CombinedRay.Origin.y = data.gaze_origin_combined_mm_xyz.y / 1000f;
latestDataLocalSpace.CombinedRay.Origin.z = data.gaze_origin_combined_mm_xyz.z / 1000f;
latestDataLocalSpace.CombinedRay.Direction.x = data.gaze_direction_combined_normalized_xyz.x * -1;
latestDataLocalSpace.CombinedRay.Direction.y = data.gaze_direction_combined_normalized_xyz.y;
latestDataLocalSpace.CombinedRay.Direction.z = data.gaze_direction_combined_normalized_xyz.z;
CopyIndividualEyeData(ref latestDataLocalSpace.Left, ref data.left);
CopyIndividualEyeData(ref latestDataLocalSpace.Right, ref data.right);
}
private static void CopyEyeTrackingData(TobiiXR_EyeTrackingData latestDataLocalSpace, ref tobii_wearable_data_t data)
{
latestDataLocalSpace.GazeRay.IsValid = data.gaze_direction_combined_validity == tobii_validity_t.TOBII_VALIDITY_VALID && data.gaze_origin_combined_validity == tobii_validity_t.TOBII_VALIDITY_VALID;
latestDataLocalSpace.GazeRay.Origin.x = data.gaze_origin_combined_mm_xyz.x * -1 / 1000f;
latestDataLocalSpace.GazeRay.Origin.y = data.gaze_origin_combined_mm_xyz.y / 1000f;
latestDataLocalSpace.GazeRay.Origin.z = data.gaze_origin_combined_mm_xyz.z / 1000f;
latestDataLocalSpace.GazeRay.Direction.x = data.gaze_direction_combined_normalized_xyz.x * -1;
latestDataLocalSpace.GazeRay.Direction.y = data.gaze_direction_combined_normalized_xyz.y;
latestDataLocalSpace.GazeRay.Direction.z = data.gaze_direction_combined_normalized_xyz.z;
if (_convergenceDistanceSupported)
{
latestDataLocalSpace.ConvergenceDistance = data.convergence_distance_mm / 1000f;
latestDataLocalSpace.ConvergenceDistanceIsValid = data.convergence_distance_validity == tobii_validity_t.TOBII_VALIDITY_VALID;
}
else
{
if (data.left.gaze_direction_validity == tobii_validity_t.TOBII_VALIDITY_INVALID || data.right.gaze_direction_validity == tobii_validity_t.TOBII_VALIDITY_INVALID)
{
latestDataLocalSpace.ConvergenceDistanceIsValid = false;
}
else
{
var convergenceDistance_mm = Convergence.CalculateDistance(
data.left.gaze_origin_mm_xyz.ToVector3(),
data.left.gaze_direction_normalized_xyz.ToVector3(),
data.right.gaze_origin_mm_xyz.ToVector3(),
data.right.gaze_direction_normalized_xyz.ToVector3()
);
latestDataLocalSpace.ConvergenceDistance = convergenceDistance_mm / 1000f;
latestDataLocalSpace.ConvergenceDistanceIsValid = true;
}
}
latestDataLocalSpace.IsLeftEyeBlinking = data.left.eye_openness_validity == tobii_validity_t.TOBII_VALIDITY_INVALID || Mathf.Approximately(data.left.eye_openness, 0f);
latestDataLocalSpace.IsRightEyeBlinking = data.right.eye_openness_validity == tobii_validity_t.TOBII_VALIDITY_INVALID || Mathf.Approximately(data.right.eye_openness, 0f);
}
protected virtual void WearableCallback(ref tobii_wearable_data_t data)
{
}
