The evolution of virtual reality technology can be divided into four stages: the simulation of voiced dynamics is the first stage of implication of virtual reality (before 1963); the second stage of virtual reality (1963 - 1972); virtual reality The generation and theory of concepts are initially formed into the third stage (1973-1989); the further improvement and application of the virtual reality theory is the fourth stage (1990-2004).
In addition to the visual perception of general computers, there are also auditory perception, tactile perception, motion perception, and even taste, smell, and perception. The ideal virtual reality should have the perceptual function that everyone has.
Sense of existence
Refers to the true degree to which the user feels as a protagonist in the simulated environment. The ideal simulation environment should be such that it is difficult for users to distinguish between true and false.
Refers to the user's degree of operability of objects within the simulated environment and the degree of natural feedback from the environment.
Refers to the extent to which objects in a virtual environment act according to the laws of physical motion of the real world.