http://blogs.msdn.com/pantal/archive/2008/12/16/how-to-draw-wpf-3d-wireframe-graphics.aspxA question I periodically see on forums and discussions with WPF 3D graphics users is, "how do I draw wireframe" content for 3D. This isn't supported out of the box, but couple strategies I would suggest are: The out of band 3DTools library from membersen-USCommunityServer 2.1 SP1 (Build: 61025.2)