The rest of the virtual reality system, what virtual reality is

Virtual reality is a synthesis of a variety of technologies, including real-time three-dimensional coarse and computer graphics technology, wide-angle (wide-field of view) stereoscopic display technology, observer head, eye and hand tracking technology, as well as tactile force feedback, stereo sound, network transmission, voice input and output technology, etc. In comparison, it is not too difficult to produce graphic images using computer models. With a model that's accurate enough and there's enough time, we can produce accurate images of a variety of objects in different lighting conditions, but the key here is real-time.

For example, in flight simulation systems, image refresh is very important, and at the same time, the requirements for image quality are also very high, and the problem becomes quite difficult due to the very complex virtual environment.

Computers simulate virtual environments to give people a sense of immersion in the environment.

Virtual reality (VR) is a high-tech technology that has emerged in recent years, also known as spiritual technology or artificial environment. Virtual reality is the use of computer simulation to generate a three-dimensional virtual world, providing users with visual, auditory, tactile and other senses of simulation, so that users can observe things in three-dimensional space in a timely and unlimited manner as if they were in the scene.

1. Multi-perceptuality.

multi-sensory) - the so-called multi-perception refers to the visual perception in addition to the general computer technology, there are auditory perception, force perception, tactile perception, motor perception, and even taste perception, olfactory perception, etc. The ideal virtual reality technology should have all the perceptual functions that all humans have.

2. Immersion.

immersion) – also known as presence, refers to the degree to which the user feels real as the protagonist in a simulated environment. The ideal simulation environment should make it difficult for the user to distinguish between the real and the fake, so that the user can fully immerse themselves in a computer-created 3D virtual environment where everything looks real.

3. Interactivity.

interactivity) - refers to the degree to which the user can manipulate the objects in the simulated environment and the degree of naturalness (including real-time) feedback from the environment. For example, users can directly grasp virtual objects in the simulated environment with their hands, and at this time, the hand has the feeling of holding something, and can feel the weight of the object, and the object in the field of vision can also move immediately with the movement of the hand.