/// <summary>
/// Updates the current matrix of this marker node
/// </summary>
/// <param name="elapsedTime">Elapsed time from last update in milliseconds</param>
public virtual void Update(float elapsedTime)
{
if (tracker == null && scene.MarkerTracker != null)
{
tracker = scene.MarkerTracker;
markerID = tracker.AssociateMarker(markerConfigs);
}
if (tracker != null && tracker.FindMarker(markerID))
{
Vector3 p = new Vector3();
Quaternion q = Quaternion.Identity;
Matrix rawMat = tracker.GetMarkerTransform();
if (smooth || predict)
{
Vector3 scale;
rawMat.Decompose(out scale, out q, out p);
}
if (smooth)
{
smoother.FilterMatrix(ref p, ref q, out worldTransformation);
}
else
{
worldTransformation = rawMat;
}
if (isInverseViewSet)
{
Matrix.Multiply(ref worldTransformation, ref inverseCameraView, out worldTransformation);
}
if (predict)
{
predictionTime = 0;
predictor.UpdatePredictor(ref p, ref q);
}
prevMatrix = worldTransformation;
dropout = 0;
found = true;
}
else
{
if (maxDropouts < 0)
{
worldTransformation = prevMatrix;
found = false;
}
else
{
if (dropout < maxDropouts)
{
dropout++;
if (predict)
{
predictionTime += elapsedTime;
predictor.GetPrediction(predictionTime, out worldTransformation);
}
else
{
worldTransformation = prevMatrix;
}
}
else
{
found = false;
worldTransformation = MatrixHelper.Empty;
}
}
if (smooth)
{
smoother.ResetHistory();
}
}
}