International Journal of CAD/CAM

한국CDE학회 (Society for Computational Design and Engineering)
권호 표지

Generation of Realistic Terrain Based on LOD Simplification and Fractal

  • Min, Hu (School of Computer Science and Information, Hefei University of Technology) ;
  • Zhen, Wang (School of Computer Science and Information, Hefei University of Technology)
  • 발행 : 2009.12.31
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초록

Based on the study of Digital Elevation Simplification Model and fractal theory, this paper put forward a new method to simulate complex terrain. That use simplified DEM data to construct terrain frame based on the quad tree at first, and then use fractal to generate the details of every node of the tree. In the process of construction, the LOD theory is used to simplify the terrain and get its typical data. According to the change of view position and direction, the paper gives a new way to judge the visibility of the surface patch. Experimental results show that this algorithm is simple, efficient and supports the real time dynamic simulation of terrain model.

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참고문헌

  1. Yihong Sun, Yonghe Jiao(2004), Real-time Generation of Realistic Terrain Based on View and Fractal, Journal of System Simulation,12, 2729-2731
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  4. Thatcher Ulrich(2002), Rendering massive terrains using chunked level detail control, In: Proc. of the ACM SIGGRAPH 2002,course Notes
  5. Li jie, Chen Jin-chang(2001), The Application of 3D Face Control in Fractal Landform, Journal of Engineering Graphics 1, 113-117