title: How to display one 3d model on top of another in WPF?
body: <p>I have 2 <code>ModelVisual3D</code>s in my scene, one is imported from a file and the other one is <code>ScreenSpaceLines3D</code> from <code>3DTools</code> package. Problem is, this line is inside my model and I need it to be shown on top of my model.</p>
  
  <p>How can I do it?</p>