private void Update() { Transform3DGroup fingertipTransformGroup = new Transform3DGroup(); fingertipTransformGroup.Children.Add(new RotateTransform3D( new QuaternionRotation3D(m_fingertipOrientation))); fingertipTransformGroup.Children.Add(new TranslateTransform3D( m_fingertipPosition.X, m_fingertipPosition.Y, m_fingertipPosition.Z)); m_fingertipTransform = fingertipTransformGroup; m_model.Update(); }