XRay Shader with Normalmap

Does anyone know how to do this? I'm looking for an effect like the attached image, but I'd like it to take a normal (or height) map for added detail. And ideally it would block the rear parts shining through the frontmost parts.

If you have a shader like that or can give me any pointers on how to accomplish this in ShaderForge, you could help me a lot!

 

If you're willing to work with code rather than shader forge, you can find some useful starting points here - http://forum.unity3d.com/threads/ac...ect-with-a-surface-shader.96393/#post-1225605.

They don't include normal mapping, but it's easy enough to add it in. The shader reference example for normal mapping shows you everything you need to do - http://docs.unity3d.com/Manual/SL-SurfaceShaderExamples.html.

Hope that helps! Let me know if you need me to clarify anything.