a fast method for real-time computation of approximated global     illumination

	a fast method for real-time computation of approximated global illumination
	Lv Weiwei; Lu Jian; Liu Xuehui; Wu Enhua
	2009
会议名称	6th International Conference on Computer Graphics, Imaging and Visualization (CGIV 2009)
会议录名称	Proceedings of the 2009 6th International Conference on Computer Graphics, Imaging and Visualization: New Advances and Trends, CGIV2009
会议日期	AUG 11-14,
会议地点	Tianjin, PEOPLES R CHINA
出版地	10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1264 USA
出版者	PROCEEDINGS OF THE 2009 SIXTH INTERNATIONAL CONFERENCE ON COMPUTER GRAPHICS, IMAGING AND VISUALIZATION
ISBN	978-0-7695-3789-4
部门归属	Lv, Weiwei; Lu, Jian; Liu, Xuehui; Wu, Enhua Chinese Acad Sci, Inst Software, State Key Lab Comp Sci, Beijing, Peoples R China.
摘要	We present a fast method for real-time computation of approximated global illumination for fully dynamic scenes under area light sources. To accelerate the computation, we use simplified models to calculate the indirect illumination, while render the direct illumination with original complex models. After direct illumination is computed with convolution soft shadow maps algorithm, color, position and normal textures are generated, from which a Halton quasi-random sampling method is used to produce the pixel lights for the second bounce. Our testing models show that thousands of passes can be rendered with the simplified scenes in one second for the indirect illumination, and it can dramatically improve the frame rate for relatively complex scenes. Final image is generated by blending direct image and all indirect images.
关键词	Soft Shadow Global Illumination Indirect Illumination
内容类型	会议论文
URI标识	http://ir.iscas.ac.cn/handle/311060/8248
专题	基础软件与系统重点实验室
推荐引用方式 GB/T 7714	Lv Weiwei,Lu Jian,Liu Xuehui,et al. a fast method for real-time computation of approximated global illumination[C]. 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1264 USA:PROCEEDINGS OF THE 2009 SIXTH INTERNATIONAL CONFERENCE ON COMPUTER GRAPHICS, IMAGING AND VISUALIZATION,2009.