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  Practical Shadow Mapping

Brabec, S., Annen, T., & Seidel, H.-P. (2005). Practical Shadow Mapping. In R. Barzel (Ed.), Graphics Tools: The jgt Editors' Choice (pp. 217-228). Wellesley, Massachusetts, USA: A.K. Peters.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-276E-D Version Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-276F-B
Genre: Book Chapter

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 Creators:
Brabec, Stefan1, Author           
Annen, Thomas1, Author           
Seidel, Hans-Peter1, Author           
Barzel, Ronan, Editor
Affiliations:
1Computer Graphics, MPI for Informatics, Max Planck Society, ou_40047              

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 Abstract: In this paper, we present several methods that can greatly improve image quality when using the shadow mapping algorithm. Shadow artifacts introduced by shadow mapping are mainly due to low resolution shadow maps and/or the limited numerical precision used when performing the shadow test. These problems especially arise when the light source’s viewing frustum, from which the shadow map is generated, is not adjusted to the actual camera view. We show how a tight-fitting frustum can be computed such that the shadow mapping algorithm concentrates on the visible parts of the scene and takes advantage of nearly the full available precision. Furthermore, we recommend uniformly spaced depth values in contrast to perspectively spaced depths in order to equally sample the scene seen from the light source.

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Language(s): eng - English
 Dates: 2006-04-252005
 Publication Status: Issued
 Pages: -
 Publishing info: Wellesley, Massachusetts, USA : A.K. Peters
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 279031
Other: Local-ID: C125675300671F7B-A639B7B1E56416A1C12570DD00510338-JGTECV2005
 Degree: -

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Title: Graphics Tools: The jgt Editors' Choice
Source Genre: Book
 Creator(s):
Barzel, Ronan, Editor
Affiliations:
-
Publ. Info: Wellesley, Massachusetts, USA : A.K. Peters
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 217 - 228 Identifier: ISBN: 1568812469