Application Research Of Landscape Simulation Based On Virtual Reality Technology

The tourism is honored as the sunrise industry which never declines internationally, in our country, the tourism has developed into the tertiary industry as "the mainstay". Developing tourism could provide the more employment opportunities, promote the development of other industrial, improve economy structure of the national, the promote the provincial economy, therefore the development of tourism will improve the economy soaring of the entire state. However,traditional GIS only runs smoothly on two dimensional spatial data,and it can not realize the 3D visualization of a tourist spot while managing the information of its tourist resources,which will prevent people from gaining a direct and real impression of the overall scenery of a tourist spot.In order to overcome such shortcoming, We use the three dimensional visualization to reappear the scenic spot, apply the virtual reality technology and the emulation technique to construct the virtual scene, and interact with the virtual scene,it can make people feel the scene factually. The users could know the scenic spot according to the virtual scene, selecting three dimensional visualization to the view spot can act as the scenic spot index plate's role, and provide the optimal path to the tourist. Appling the research results of three dimensional visualization to the tourism, will be the giant power which could promote the tourism development, also will be the research subject with great significance to the economic development and the social development of the entire national.This article belongs to the research area of the landscape simulation based on the virtual reality technology and the GIS technology, makes use of the technology that the virtual reality combine with the three dimensional visualization, takes the Da Tang Bu Ye Cheng as the research area, establishes the real-time roaming system about three dimensional virtual scene of Da Tang Bu Ye Cheng, designs and achieves the scenic area's hypothesized visualization according to the user's demands,and researches the technology which can establishment three dimensional virtual model in the hypothesized simulation environment and achieve three dimensional dynamic visualization. The paper devotes to the scenic area simulation, uses the VC++ platform, Build the scenic area with the aid of specialized virtual reality modelling software MultiGen Creator the three dimensional environment,and implement the real-time roaming and the interaction control based on the technology of the virtual reality, the simulation technique, visualization technology and the research of construction methods of three dimensional model,digit terrain model and so on.The following aspects were discussed in this paper:1,The 3D environment of the scene was constructed by using the professional modeling software Multigen Creator and 3DS Max.2,Discussed the three dimensional visualization process, has studied based on the virtual reality landscape three dimensional visualization process modeling technology, the texture mapping, the model optimization method and the technology of scene integration and so on.3,The main essential technology involved in the process of real-time roam was researched and the scene walkthrough and 3D information inquiry approach was accomplished.