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		<citationkey>BarrosoCele:2007:ImReSh</citationkey>
		<author>Barroso, Vitor Barata Ribeiro Blanco,</author>
		<author>Celes Filho, Waldemar,</author>
		<affiliation>TecGraf, Computer Science Dept., PUC-Rio</affiliation>
		<affiliation>TecGraf, Computer Science Dept., PUC-Rio</affiliation>
		<title>Improved Real-Time Shadow Mapping for CAD Models</title>
		<conferencename>Brazilian Symposium on Computer Graphics and Image Processing, 20 (SIBGRAPI)</conferencename>
		<year>2007</year>
		<editor>Falcão, Alexandre Xavier,</editor>
		<editor>Lopes, Hélio Côrtes Vieira,</editor>
		<booktitle>Proceedings</booktitle>
		<date>Oct. 7-10, 2007</date>
		<publisheraddress>Los Alamitos</publisheraddress>
		<publisher>IEEE Computer Society</publisher>
		<conferencelocation>Belo Horizonte</conferencelocation>
		<keywords>real-time rendering, shadow algorithms, shadow mapping, anti-aliasing, CAD models.</keywords>
		<abstract>Shadow mapping is a widely used rendering technique for real-time shadow generation. However, it may produce jagged shadow borders and incorrect self-shadowing artifacts. When applied to CAD (Computer-Aided Design) models, it presents additional challenges due to the existence of thin and complex-silhouette objects, high depth range, and high depth complexity. In this work, we present a short survey of shadow mapping algorithms and investigate their suitability to CAD model rendering. We also present two improvements to existing techniques: a generalized parameter for LiSPSMs (Light-Space Perspective Shadow Maps) and an adaptive z-partitioning scheme.</abstract>
		<language>en</language>
		<tertiarytype>Full Paper</tertiarytype>
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