Two-Way Glass Shader

  

 

 

 This only works with 3D Geometry! (No Planes/Circles etc.) 

 

 Seperate Inner and outer Geometry into seperate Material Slots 

 Create Shaders as below. For the Outside Shader, the "Backfacing Geometry" Output needs to be used to manipulate the Alpha of the other Side of the Faces. That way, we get the "2-Way-Mirror" Effect 

 

 Outer Shader 

 

 Inner Shader 

 This can be any generic Glass Shader with Alpha Information