The Application Of Virtual Reality To The Layout And Management System Of Town

Virtual Reality technique increasingly attracts many scholars' attention in the computer field. With the fast development of computer's hardware technology and the fall of the cost, this technique has become very common. More and more researchers have an interest in this technique, and now Virtual Reality has been widely used in many fields, for instance architecture, machine, traffic and military affairs. This technique has some outstanding specialties, for example immersion, interaction and imagination, which can be provided as a platform for the layout and management of town. The basic Virtual Reality platform for town's layout and management is constructed by OpenGL and C++, blended in Geography Information System and Digital Photography. Therefore, this research has a very important significance in theory and application. In this paper, some techniques in Virtual Reality, such as LOD Technique of 3-dimension terrain, frustum culling of 3-dimension terrain, levels of detail model, particles, dynamic texture and bump texture, were deeply researched, and some algorithms and methods are proposed by author. At the same time, some original problems, for example the analysis of room's irradiation, the alarm of emergencies, quick drawing performed by display card and frustum-culling of models, are also involved in the research. Finally, this constructed platform is given in ActiveX control style.