
236 Virtual Reality: Concepts and Technologies
Figure 11.15 Technological constraints in the design of an individual visual interface
We can sum up these different technical constraints in designing an individual
visual interface (head-mounted display) in four steps, in increasing order of difficulty
(Figure 11.15).
If we can manufacture head-mounted displays with visual immersion by incorpo-
rating a tracker, 100% stereoscopic vision is more difficult to obtain especially if at
the same time we want a very high resolution. Currently, we do not have the technical
resources to meet these requirements. The difficulties increase further if we want to