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Proceedings Paper

Research and realization of large-scale complex terrain generation
Author(s): Jian-yu Wang; Xiao-xia Zhong; Hui-zhong Wu
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Paper Abstract

An algorithm of LOD automatically generation through sparsely resampling technique is presented in this paper. Based on DEM uniform grid model, "block" is taken as the space unit of terrain simplification and a multi-LOD data structure is built to store every level of models. The complexity of calculation is greatly reduced, the rendering of the terrain model is simplified effectively, and the efficiency of the terrain generation is improved. Additionally, the effects of viewpoint and view direction are considered, which makes the 3D terrain more realistic. On the basis of the theory of this algorithm, a system for 3D complex terrain generation is realized through Visual C++6.O and OpenGL programming. The dynamic, real-time and visual characters of this system are satisfying, which verifies the validity ofthe algorithm further.

Paper Details

Date Published: 31 July 2002
PDF: 7 pages
Proc. SPIE 4875, Second International Conference on Image and Graphics, (31 July 2002); doi: 10.1117/12.477098
Show Author Affiliations
Jian-yu Wang, Nanjing Univ. of Science and Technology (China)
Xiao-xia Zhong, Nanjing Univ. of Science and Technology (China)
Hui-zhong Wu, Nanjing Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 4875:
Second International Conference on Image and Graphics
Wei Sui, Editor(s)

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