Help me illustrate virtual reality technology.

Virtual reality technology is a new technology, which has just come out for a year or two. Shenzhen, Shanghai and other big cities are in great need of talents in this field, mainly used in animation, movies, games, military and other fields. Virtual reality is a more ideal form of man-machine interface between computer and user. Usually, users wear helmets (head-mounted displays that display stereoscopic images) and hold sensing gloves, as if they were in an imaginary world, roaming in a virtual environment and allowing them to operate the "objects" in it. Compared with traditional computers, virtual reality system has three important characteristics: proximity, interactivity and imagination. Virtual reality technology has a wide range of potential applications, such as national defense, architectural design, industrial design, training and medical treatment. For example, architects can use virtual reality technology to provide customers with three-dimensional virtual models, and surgeons can also try a new surgical operation on three-dimensional virtual patients.

Virtual reality is the use of computer technology to simulate and demonstrate real movement.

In the process of virtual machine, the operator can feel the movement of this process, manipulate the equipment, check the dynamic values of various technical parameters in the production process, experimental process, construction drawing process, supply process, logistics process and other activities, so as to confirm whether the actual system has the ability to complete the scheduled task and how to do it, and also find the defects and problems in the movement process and improve them.

With the long-distance and internationalization of logistics, the process of logistics spans several countries and several means of transportation, so it is impossible for customers to conduct field visits to this system. When outsourcing business, customers can't make a final judgment just by listening to some briefings or video demonstrations. In this case, by adopting the method of simulating reality, customers can directly enter the virtual world of the computer system and make the final judgment on the key links. Manipulate, demonstrate, observe and analyze the dynamic data about the process to determine whether the business can be outsourced to the system; On the other hand, the third-party logistics companies also need to use the simulated reality system to classify logistics time and logistics cost, so as to make a decision whether they can accept customer requirements.

A typical virtual reality system consists of the following parts:

1) effect generator. The effect generator is a hardware interface device that completes the interaction between human and virtual environment, including various output devices that make people feel immersive, such as helmet display and stereo headphones. It also includes input devices that can measure the line of sight and the direction of finger movement, such as head orientation detector and data gloves.

2) Real scene simulator. Real scene simulator is the core part of virtual reality system, which is actually a computer software and hardware system, including software development tools and supporting hardware. Its task is to receive and send signals generated or received by the effect generator.

3) Application system. Application system is a software part used in different virtual processes, which describes the specific content of virtual, including the dynamic logic and structure of simulation, as well as the interaction between simulation objects and between simulation objects and users.

4) Geometric structure system. It provides the information that the application system needs to describe the physical properties of the simulated object when generating the virtual world, such as shape, appearance, color, location and so on.

The software and hardware equipment of the virtual reality technology system are as follows: virtual reality workstation, professional engineering projector, professional polaroid glass lens, virtual reality projection screen, 3D graphics workstation, multi-channel, stereo projection, virtual reality player, real-time graphics rendering engine, virtual reality SDK software development kit and engineering customization, virtual reality helmet display, 3D stereo photography digital camera, audio equipment, etc.