Combination of hierarchical visibility with level of detail terrain model

Residential College	false
Status	已發表Published
	Combination of hierarchical visibility with level of detail terrain model
	Li S.1; Liu X.-H.1; Wang W.-C.1; Wu E.-H.1
	2002-09-01
Source Publication	Jisuanji Xuebao/Chinese Journal of Computers
ISSN	02544164
Volume	25 Issue:9 Pages:945-952
Abstract	Real-time rendering of large-scale terrain is one of the important subjects in virtual reality technology. This paper puts forward a fast terrain rendering algorithm that combines hierarchical visibility with level of detail model for terrain walk-through. The main idea of the algorithm is to make use of horizon characteristic of terrain to set up the corresponding block visibility structure for dynamic multi-resolution model in preprocessing stage. With the block visibility structure, the visibility of all terrain block can be quickly tested. Since the invisible terrain quads are culled, the number of triangles to be processed and rendered reduces heavily. At the same time, in order to eliminate the visibility error caused by terrain model changing in different level. This paper puts forward a hierarchical visibility computing method to revise the dynamic change on terrain model. The experimental result indicates efficiency of the algorithm.
Keyword	Block culling Hierarchical visibility Horizon Level of detail model Occlusion region
URL	View the original
Language	英語English
Fulltext Access	View Full-Text via Scopus
Document Type	Journal article
Collection	University of Macau
Affiliation	1.Institute of Software Chinese Academy of Sciences 2.Universidade de Macau
Recommended Citation GB/T 7714	Li S.,Liu X.-H.,Wang W.-C.,et al. Combination of hierarchical visibility with level of detail terrain model[J]. Jisuanji Xuebao/Chinese Journal of Computers, 2002, 25(9), 945-952.
APA	Li S.., Liu X.-H.., Wang W.-C.., & Wu E.-H. (2002). Combination of hierarchical visibility with level of detail terrain model. Jisuanji Xuebao/Chinese Journal of Computers, 25(9), 945-952.
MLA	Li S.,et al."Combination of hierarchical visibility with level of detail terrain model".Jisuanji Xuebao/Chinese Journal of Computers 25.9(2002):945-952.

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