Multi-resolution shadow mapping using CUDA rasterizer

ISCAS OpenIR

	Multi-resolution shadow mapping using CUDA rasterizer
	Huang, Peng (1); Liu, Xuehui (2); Wu, Enhua (2)
	2013
会议名称	13th International Conference on Computer-Aided Design and Computer Graphics, CAD/Graphics 2013
页码	148-155
会议日期	November 16, 2013 - November 18, 2013
会议地点	Hong Kong, China
收录类别	EI
出版地	IEEE Computer Society
ISBN	9781479925766
部门归属	(1) University of Chinese Academy of Sciences, Beijing, China; (2) Institute of Software, Chinese Academy of Sciences, Beijing, China; (3) University of Macau, China
摘要	Shadow mapping is a fast and easy to use method to produce hard shadows. However, it introduces aliasing due to its uniform sampling strategy and limited shadow map resolution. In this paper, we propose a memory efficient algorithm to render high quality shadows. Our algorithm is based on a multi-resolution shadow map structure, which includes a conventional shadow map for scene regions where a low-resolution shadow map is sufficient, and a high-resolution patch buffer to capture scene regions that are susceptible to aliasing. With this data structure, we are able to capture shadow details with far less memory footprint than conventional shadow mapping. In order to maintain an appropriate performance compared to conventional shadow mapping, we designed a customized CUDA rasterizer to render the high-resolution patches. © 2013 IEEE.; Shadow mapping is a fast and easy to use method to produce hard shadows. However, it introduces aliasing due to its uniform sampling strategy and limited shadow map resolution. In this paper, we propose a memory efficient algorithm to render high quality shadows. Our algorithm is based on a multi-resolution shadow map structure, which includes a conventional shadow map for scene regions where a low-resolution shadow map is sufficient, and a high-resolution patch buffer to capture scene regions that are susceptible to aliasing. With this data structure, we are able to capture shadow details with far less memory footprint than conventional shadow mapping. In order to maintain an appropriate performance compared to conventional shadow mapping, we designed a customized CUDA rasterizer to render the high-resolution patches. © 2013 IEEE.
语种	英语
内容类型	会议论文
URI标识	http://ir.iscas.ac.cn/handle/311060/16651
专题	中国科学院软件研究所
推荐引用方式 GB/T 7714	Huang, Peng ,Liu, Xuehui ,Wu, Enhua . Multi-resolution shadow mapping using CUDA rasterizer[C]. IEEE Computer Society,2013:148-155.