Optimizing grid resolutions for ray tracing

Residential College	false
Status	已發表Published
	Optimizing grid resolutions for ray tracing
	Li J.1; Wang W.1; Wu E.1
	2008-08-01
Source Publication	Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics
ISSN	10039775
Volume	20 Issue:8 Pages:968-977
Abstract	Grid is one of the important structures for speeding up ray tracing, and it can be easily constructed. However, the grid resolution affects the efficiency of ray tracing greatly. A cost prediction method is presented in this paper to measure the cost of ray tracing with respect to the grid resolution, and the technique is further developed to compute the optimized grid resolution for a specific rendering task via ray tracing. Our new method first calculates some parameters about the scene according to the model type and the manner to use grids, to predict the time cost and related storage requirement on grid construction, ray tracing via the grids. An optimization process is then applied to choose an appropriate gird resolution by minimizing the cost predict function for specific rendering tasks. Unlike existing methods, our new method takes into account the distribution features of facets in a scene, thus increasing the prediction accuracy. Experimental result shows that our method can be used to compute an optimized grid resolution, almost close to the best grid resolution for ray tracing various scenes.
Keyword	Cost prediction Dynamic scenes Ray tracing Uniform grids
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 J.,Wang W.,Wu E.. Optimizing grid resolutions for ray tracing[J]. Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics, 2008, 20(8), 968-977.
APA	Li J.., Wang W.., & Wu E. (2008). Optimizing grid resolutions for ray tracing. Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics, 20(8), 968-977.
MLA	Li J.,et al."Optimizing grid resolutions for ray tracing".Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics 20.8(2008):968-977.

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