The virtual reality glasses and virtual reality helmets on the market today are typical virtual reality systems based on helmet displays. It consists of a computer, helmet display, data gloves, force feedback device, microphone, headset and other equipment. "VRLC66" is the vr manufacturer? The same number can be quoted for you vr equipment a set of about 10,000 yuan, the system first by the computer to generate a virtual world, a three-dimensional reality of the scene by the helmet display summer; the user can through the rotation of the head, the hand movement, language, etc. and the virtual world of natural interaction; the computer can be based on a variety of information entered by the user to carry out calculations in real time, instantly interact with the behavior of the feedback from the helmet-type display update The corresponding scene display, a headset output virtual stereo sound, by force feedback device to produce tactile (force) feedback.
vr system composition: a typical virtual reality system is mainly composed of computers, input/output devices, application software and databases and other components.
1. computer in the virtual reality system, the computer plays a vital role, can be called the heart of the virtual reality world. It is responsible for the real-time rendering calculation of the whole virtual world, the real-time interactive calculation of the user and the virtual world and other functions. Because the computer-generated virtual world has a high degree of complexity, especially in large-scale complex scenes, rendering the virtual world of the computer required for the magnitude of the huge, so the virtual reality system on the computer configuration requirements are very high.
2. Input/output devices virtual reality system requires users to interact with the virtual world in a natural way, the traditional mouse and keyboard are unable to achieve this goal, which requires the use of special interactive devices to recognize the various forms of user input, and real-time generation of corresponding feedback information. Currently, the commonly used interaction devices include data gloves for gesture input, three-dimensional sound systems for voice interaction, and helmet displays for stereoscopic visual output.
3. Application software In order to realize the virtual reality system, a lot of auxiliary software support is needed. These auxiliary software are generally used to prepare the material needed to build the virtual world. Organize all kinds of media materials together to form a complete virtual world with interactive function, it also needs professional virtual reality engine software, which is mainly responsible for completing the model assembly, hotspot control, motion mode setting up, sound generation and so on in the virtual reality system. In addition, it has to establish the necessary interface connection between virtual world and background database, virtual world and interactive hardware. Mature virtual reality engine software will also provide plug-in interfaces, allowing customers to develop some plug-ins independently for different functional requirements.
4. Database in the virtual reality system, the role of the database is mainly to store a variety of data needed by the system, such as terrain data, scene models, various production of building models and other aspects of information. For all the objects appearing in the virtual reality system, in the database need to have the corresponding model.