Research on Optimization and Application of LOD Algorithm in Virtual Reality Visualization of Terrain

Abstract:

With the development of computer graphics, real-time rendering-based VF: technology has been applied in more and more fields. LOD is the key technology in large-scale terrain rendering. In this paper, the basic concept of LOD is introduced briefly and some algorithms of LOD in use are mentioned and analyzed; secondly as one of algorithms of LOD, View-Dependent Progressive Mesh algorithm is studied and improved, the result of implementing the large-scale terrain’s LOD by using VDPM is presented. There are key technologies in LOD Large-scale terrain real-time rendering are researched. Relative technologies are presented such as: LOD of the terrain, visibility culling, and cracks eliminate, view-dependent refine, LOD error, technologies of texture etc. Using LOD technology, VR system can greatly reduce the; number of polygons produced in real-time rendering procedure. Finally, we do experimental design work based on the methods and techniques presented by this paper.

• Periodical: Applied Mechanics and Materials (Volumes 687-691)
• Pages: 1258-1261
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.687-691.1258
• Online since: November 2014
• Authors: Jing Sun*, Hong Tao Wang
• Keywords: LOD Algorithm, Optimization, Terrain Simulation

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