Does anyone have experience creating a window material that prevents looking through it. I want to create a material that looks close to a regular glass material, but without showing an empty chasm of the room behind the glass. I have provided two images below of the effects I am trying to achieve.
In the first image, the windows have a reflection look like typical windows but don't allow anything to be seen through them.
In the second image, the light coming through the windows blinds any attempt to see through.