
8 Virtual Reality: Concepts and Technologies
Immersion and interaction are the two key words of virtual reality. The technical
definition of virtual reality is:
Virtual reality is a scientific and technical domain that uses computer science (1)
and behavioural interfaces (2) to simulate in a virtual world (3) the behaviour of
3D entities, which interact in real time (4) with each other and with one or more
users in pseudo-natural immersion (5) via sensorimotor channels.
This definition introduces certain terminology requiring some explanations in
order for us to position it with respect to the points developed in the introduction:
1 It is certainly