Folded multi perception
In addition to the visual perception of the general computer, there are auditory perception, tactile perception, motion perception, and even includes taste, smell, perception and so on. The ideal virtual reality should have the perception function of all people.
Refers to the degree of authenticity perceived by a user as a leading actor in a simulated environment. The ideal simulation environment should be able to make users difficult to distinguish between true and false.
Refers to the degree of user's ability to manipulate objects in a simulated environment and to get feedback from the environment.
Refers to the degree of movement of objects in a virtual environment according to the laws of physical motion in the real world.