Interior shops without meshes

Is it possible to create a texture or any way to create a realistic window texture so when you look thru a shop window you can actually see what is inside in 3D even if there are no 3D models inside. Something like THIS
Also is there a way of having allot of interior and exteriors in the same map without causing any lag?

Thank you.

Something like this? Semi Procedural Building Materials - YouTube

I believe this was going to be released at some point. @RyanB?

Do you know where I can find something similar? But just the material so I can apply myself to the windows building.