Before the revolution of projection-based display systems was started by the CAVETM, head coupled display systems were almost exclusively used as display systems for virtual environments. Head mounted displays, as well as the BOOMTM, are essentially single user display systems that cut off the user from the outside (real) world. Although this isolation can lead to very strong immersion, it is significantly reducing the usability of these systems.
Today, projection-based systems are the dominating display technology for virtual environments. They are part of many 3D visualization centers world-wide operated and used by the oil and gas industry for the advanced exploration of oil and natural gas.