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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/8040

Title: Convolution Shadow Maps
Authors: Annen, Thomas
BEKAERT, Philippe
Seidel, H.P.
Kautz, J.
Issue Date: 2007
Publisher: Eurographics
Citation: Kautz, Jan & Pattanaik, Sumanta (Ed.) Rendering Techniques 2007: Eurographics Symposium on Rendering. p. 51-60.
Series/Report: Eurographics / ACM SIGGRAPH Symposium Proceedings, 18
Abstract: We present Convolution Shadow Maps, a novel shadow representation that affords efficient arbitrary linear filtering of shadows. Traditional shadow mapping is inherently non-linear w.r.t. the stored depth values, due to the binary shadow test. We linearize the problem by approximating shadow test as a weighted summation of basis terms. We demonstrate the usefulness of this representation, and show that hardware-accelerated anti-aliasing techniques, such as tri-linear filtering, can be applied naturally to Convolution Shadow Maps. Our approach can be implemented very efficiently in current generation graphics hardware, and offers real-time frame rates.
URI: http://hdl.handle.net/1942/8040
ISBN: 978-3-905673-52-4
ISSN: 1727-3463
Category: C1
Type: Proceedings Paper
Validation: vabb, 2015
Appears in Collections: Research publications

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