How does the viewpoint in the Camera degli Sposi affect the viewer's experience of the room?

In the Camera degli Sposi, Andrea Mantegna utilized a sophisticated system of perspective to create a total spatial illusion that transforms the viewer's experience of the room.1

By painting realistic architectural elements across the walls and ceiling, Mantegna makes the small, enclosed space appear as an elegant, open-air pavilion. The most critical element of this design is the painted oculus on the ceiling, which employs sotto in su—an extreme form of foreshortening—to create the illusion that figures are suspended in the air above the observer.12

This effect relies on a specific viewpoint: the strong vertical axis of the oculus anchors the spectator to a single, precise point in the center of the room. From this vantage, the observer’s physical space seamlessly blends with the frescoed environment, effectively transporting the viewer into the scene. This creates a "total environment" where the room's real occupants and the painted figures become part of a unified, immersive experience.13