Conference paper

VANEK Juraj, NAVRÁTIL Jan, HEROUT Adam and ZEMČÍK Pavel. High-quality Shadows with Improved Paraboloid Mapping. In: Advances in Visual Computing. Heidelberg: Springer Verlag, 2011, pp. 421-430. ISBN 978-3-642-24027-0.
Publication language:english
Original title:High-quality Shadows with Improved Paraboloid Mapping
Title (cs):Vysoko kvalitní stíny pomocí vylepšené paraboloidní projekce
Pages:421-430
Proceedings:Advances in Visual Computing
Conference:7th International Symposium on Visual Computing 2011
Series:Lecture Notes in Computer Science 6938
Place:Heidelberg, DE
Year:2011
ISBN:978-3-642-24027-0
Publisher:Springer Verlag
Keywords
shadow maps, dual-paraboloid mapping, omnidirectional lights, aliasing
Annotation
This paper introduces a novel approach to rendering of high-
quality shadows in real-time. The contemporary approach to shadow rendering in real-time is shadow maps algorithm. The standard shadow maps suffer from discretization and aliasing due to the limited resolution of the shadow texture. Moreover, omnidirectional lights need additional treatment to work correctly, e.g. with dual-paraboloid shadow maps. We propose a new technique that significantly reduces the aliasing problem and works correctly for various kinds of light sources. Our technique adapts the light's field-of-view to the visible part of the scene and thus stores only the relevant part of the scene to the full resolution of the shadow map. It produces high-quality shadows which are not constrained by position or type of the light sources and also works in fully dynamic scenes.
BibTeX:
@INPROCEEDINGS{
   author = {Juraj Vanek and Jan Navr{\'{a}}til and Adam Herout and Pavel
	Zem{\v{c}}{\'{i}}k},
   title = {High-quality Shadows with Improved Paraboloid Mapping},
   pages = {421--430},
   booktitle = {Advances in Visual Computing},
   series = {Lecture Notes in Computer Science 6938},
   year = {2011},
   location = {Heidelberg, DE},
   publisher = {Springer Verlag},
   ISBN = {978-3-642-24027-0},
   language = {english},
   url = {http://www.fit.vutbr.cz/research/view_pub.php?id=9695}
}

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