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%0 Conference Proceedings
%4 sid.inpe.br/sibgrapi@80/2007/07.20.06.43
%2 sid.inpe.br/sibgrapi@80/2007/07.20.06.43.20
%A Barroso, Vitor Barata Ribeiro Blanco,
%A Celes Filho, Waldemar,
%@affiliation TecGraf, Computer Science Dept., PUC-Rio
%@affiliation TecGraf, Computer Science Dept., PUC-Rio
%T Improved Real-Time Shadow Mapping for CAD Models
%B Brazilian Symposium on Computer Graphics and Image Processing, 20 (SIBGRAPI)
%D 2007
%E Falcão, Alexandre Xavier,
%E Lopes, Hélio Côrtes Vieira,
%S Proceedings
%8 Oct. 7-10, 2007
%J Los Alamitos
%I IEEE Computer Society
%C Belo Horizonte
%K real-time rendering, shadow algorithms, shadow mapping, anti-aliasing, CAD models.
%X 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.
%@language en
%3 barroso-ShadowMappingCADModels.pdf


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