2. Behavioral interfacing

2.1 Immersion and interaction concepts

Here, we focus on the difficulties generated by any virtual reality device. These difficulties are of a technical nature for the interfaces, but also physiological, ergonomic and psychological: something that any engineer working in this field must not ignore, on pain of failure. Despite the highly technical aspect of virtual reality at first sight, we mustn't forget that, in all cases, we want to put a person in immersion and in interaction with a virtual environment.

Man is at the center of the device, as the virtual application is addressed to him. He perceives his environment through his senses, of which there are more than five (seeNote), despite the fact that this number is the most widespread among the public....