This virtual windows concept was designed and programmed in 2011. It allows for virtual positioning of any monitor configuration in a 3D space. The system then creates a separate 3D context for each display looking into the same 3D world.

The head position of the viewer is tracked and each camera fustrum for each 3D context is adjusted accordingly in real-time. The result is an uncanny effect where the monitors become actual windows on a virtual 3D world.

Now when you lean over, you can see around the edge as you would with a real window.