Multiresolution foliage for forest rendering

CORC > 自动化研究所 > 中国科学院自动化研究所 > 模式识别国家重点实验室 > 多媒体计算与图形学团队

	Multiresolution foliage for forest rendering
	Deng, Qingqiong ; Zhang, Xiaopeng1 ; Yang, Gang ; Jaeger, Marc 2
刊名	COMPUTER ANIMATION AND VIRTUAL WORLDS
	2010
卷号	21 期号:1 页码:1-23
关键词	tree foliage level of detail compression multi-resolution rendering GPU-oriented
英文摘要	Plants are important objects in virtual environments. High complexity of shape structure is found in plant communities. Level of detail (LOD) of plant geometric models becomes important for interactive forest rendering. We emphasize three major problems in current research: the time consumption in LOD model construction and extraction, the balance between visual effect and data compression, and the time consumption in the communication between Central Processing Unit (CPU) and Graphics Processing Unit (GPU). We present a new foliage simplification framework for LOD model and forest rendering. By an uneven subdivision of the tree crown volume, the cost for LOD model construction is drastically reduced. With a GPU-oriented design of LOD storage structure for foliage, the costly hierarchical traversal of a binary tree is replaced by a sequential lookup of all array. The structure also decreases the communication between the CPU and the GPU in rendering. In addition, Leaf density is introduced to adapt compression to the local distribution of leaves, so that more visually relevant details are kept. According to foliage nature (broad leaves or needles), higher compression are finally reached using mixed polygon/line models. This framework is implemented on virtual scenes of simulated trees With high detail. Copyright (C) 2009 John Wiley & Sons, Ltd.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Computer Science, Software Engineering
研究领域[WOS]	Computer Science
收录类别	SCI
语种	英语
WOS记录号	WOS:000274937200002
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/2809]
专题	自动化研究所_模式识别国家重点实验室_多媒体计算与图形学团队
作者单位	1.Chinese Acad Sci, LIAMA Sino French Lab, NLPR, Inst Automat, Beijing 100190, Peoples R China 2.Ecole Cent Paris, Paris, France
推荐引用方式 GB/T 7714	Deng, Qingqiong,Zhang, Xiaopeng,Yang, Gang,et al. Multiresolution foliage for forest rendering[J]. COMPUTER ANIMATION AND VIRTUAL WORLDS,2010,21(1):1-23.
APA	Deng, Qingqiong,Zhang, Xiaopeng,Yang, Gang,&Jaeger, Marc.(2010).Multiresolution foliage for forest rendering.COMPUTER ANIMATION AND VIRTUAL WORLDS,21(1),1-23.
MLA	Deng, Qingqiong,et al."Multiresolution foliage for forest rendering".COMPUTER ANIMATION AND VIRTUAL WORLDS 21.1(2010):1-23.