Computer-Simulated Virtual Scene

In the computer, generation of living and vivid nature scenes is a challenging topic in computer graphics. More and more researchers pay attention to simulate the high third dimension terrain in the virtual scene. This paper mostly deals with the simulation of natural scence. Here the theories and algorithms in modeling terrain are dealt with in detail.The research emphases of the paper include the establishment of terrain model and the realization of detail of surface. During the establishment of terrain model, the theory of fractal and the characteristics of IVS, fractal Brown motion (fBm) are discussed and compared, and prove the model is adapt to the feature of the physiognomy. The fractal model of terrain is established based on the theory of IVS. At the same time, a algorithm based on IVS and texture mapping is put forward which help to create the dynamic visible result. The results make sure that the algorithm can meet the construction of virtual scences, so do its validity and practicability.