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A fast ambient occlusion method for real-time plant rendering
Teng, Jun; Jaeger, Marc; Hu, Bao-Gang
Source PublicationJOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY
2007-11-01
Volume22Issue:6Pages:859-866
SubtypeArticle
AbstractGlobal illumination effects are crucial for virtual plant rendering. Whereas real-time global illumination rendering of plants is impractical, ambient occlusion is an efficient alternative approximation. A tree model with millions of triangles is common, and the triangles can be considered as randomly distributed. The existing ambient occlusion methods fail to apply on such a type of object. In this paper, we present a new ambient occlusion method dedicated to real time plant rendering with limited user interaction. This method is a three-step ambient occlusion calculation framework which is suitable for a huge number of geometry objects distributed randomly in space. The complexity of the proposed algorithm is O(n), compared to the conventional methods with complexities of O(n(2)). Furthermore, parameters in this method can be easily adjusted to achieve flexible ambient occlusion effects. With this ambient occlusion calculation method, we can manipulate plant models with millions of organs, as well as geometry objects with large number of randomly distributed components with affordable time, and with perceptual quality comparable to the previous ambient occlusion methods.
KeywordAccessibility Value Estimation Plant Visualization Real-time Rendering
WOS HeadingsScience & Technology ; Technology
WOS KeywordMODELS
Indexed BySCI
Language英语
WOS Research AreaComputer Science
WOS SubjectComputer Science, Hardware & Architecture ; Computer Science, Software Engineering
WOS IDWOS:000251010700008
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/9405
Collection09年以前成果
Affiliation1.Chinese Acad Sci, Inst Automat, LIAMA NLPR, Beijing 100080, Peoples R China
2.INRIA Futurs, DigiPlante Team, CIRAD AMAP, Montpellier, France
Recommended Citation
GB/T 7714
Teng, Jun,Jaeger, Marc,Hu, Bao-Gang. A fast ambient occlusion method for real-time plant rendering[J]. JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,2007,22(6):859-866.
APA Teng, Jun,Jaeger, Marc,&Hu, Bao-Gang.(2007).A fast ambient occlusion method for real-time plant rendering.JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,22(6),859-866.
MLA Teng, Jun,et al."A fast ambient occlusion method for real-time plant rendering".JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY 22.6(2007):859-866.
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