Dispersive calculation of global illumination based on spherical harmonics method

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Status	已發表Published
	Dispersive calculation of global illumination based on spherical harmonics method
	Wang H.1; Liu X.1; Wu E.1
	2007-05-01
Source Publication	Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics
ISSN	10039775
Volume	19 Issue:5 Pages:609-615
Abstract	The radiosity illumination model plays an important role in computer graphics. As the calculation in the traditional radiosity method is time consuming, it is not suitable for dynamic scenes. In the paper we present a system based on the radiosity approach to speedup the calculation of global illumination. The algorithm follows the thoughts of using point sampling to simulate global illumination, while the sampling process is special so that the radiosity solution could be more adaptive in a dynamic scene. To every object inside the scene in the method, reference points are setup just at the vertices of the bounding box. When the scene is only slightly changed, the sampling result can be reused to reduce computation. The direct light is computed by cube-mapping and the energy exchange between objects is simulated by a trilinear-interpolation among the reference points. Experiments show that the method can accelerate rendering with less indirect illumination calculation required.
Keyword	Cubemap Radiosity Spherical harmonics method
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 3.University of Chinese Academy of Sciences
Recommended Citation GB/T 7714	Wang H.,Liu X.,Wu E.. Dispersive calculation of global illumination based on spherical harmonics method[J]. Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics, 2007, 19(5), 609-615.
APA	Wang H.., Liu X.., & Wu E. (2007). Dispersive calculation of global illumination based on spherical harmonics method. Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics, 19(5), 609-615.
MLA	Wang H.,et al."Dispersive calculation of global illumination based on spherical harmonics method".Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics 19.5(2007):609-615.

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