Real-Time Shadowing Techniques
(2004) 31st International Conference on Computer Graphics and Interactive Techniques, 2004- Abstract
- Shadows heighten realism and provide important visual cues about the spatial relationships between objects. But integration of robust shadow shadowing techniques in real-time rendering is not an easy task. In this course on how shadows are incorporated in real-time rendering, attendees learn basic shadowing techniques and more advanced techniques that exploit new features of graphics hardware.The course begins with shadowing techniques using shadow maps. After an introduction to shadow maps and general improvements of this technique (filtering, depth bias, omnidirectional lights, etc.), the first section describes two methods for reducing sampling artifacts: perspective shadow maps and silhouette maps. Both techniques can significantly... (More)
- Shadows heighten realism and provide important visual cues about the spatial relationships between objects. But integration of robust shadow shadowing techniques in real-time rendering is not an easy task. In this course on how shadows are incorporated in real-time rendering, attendees learn basic shadowing techniques and more advanced techniques that exploit new features of graphics hardware.The course begins with shadowing techniques using shadow maps. After an introduction to shadow maps and general improvements of this technique (filtering, depth bias, omnidirectional lights, etc.), the first section describes two methods for reducing sampling artifacts: perspective shadow maps and silhouette maps. Both techniques can significantly improve shadow quality, but they require careful implementation. The course continues with extensions of the shadow mapping method that allow soft shadows from linear and area light sources. The second part of the course discusses recent advances in efficient and robust implementation of shadow volumes on graphics hardware and then shows how shadow volumes can be extended to generate accurate soft shadows from area lights. Finally, the course summarizes real-time shadowing from full lighting environments using the technique of precomputed radiance transfer.The course explains the differences among these algorithms and their strengths and weaknesses. Implementation details, often omitted in technical papers, are provided. And throughout the course, the tradeoffs between quality and performance are illustrated for the different techniques. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/747722
- author
- Kautz, Jan ; Akenine-Möller, Tomas LU ; Stamminger, Marc ; Chan, Eric ; Heidrich, Wolfgang and Kilgard, Mark
- organization
- publishing date
- 2004
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- International Conference on Computer Graphics and Interactive Techniques ACM SIGGRAPH 2004 Course Notes
- publisher
- Association for Computing Machinery (ACM)
- conference name
- 31st International Conference on Computer Graphics and Interactive Techniques, 2004
- conference location
- Los Angeles, CA, United States
- conference dates
- 2004-08-08 - 2004-08-12
- external identifiers
-
- scopus:84983140571
- DOI
- 10.1145/1103900.1103927
- language
- English
- LU publication?
- yes
- additional info
- Full-day course
- id
- 52fce5b3-cbe9-47e8-ad93-04122e8fa6e0 (old id 747722)
- date added to LUP
- 2016-04-04 11:35:45
- date last changed
- 2022-01-29 22:09:26
@inproceedings{52fce5b3-cbe9-47e8-ad93-04122e8fa6e0,
abstract = {{Shadows heighten realism and provide important visual cues about the spatial relationships between objects. But integration of robust shadow shadowing techniques in real-time rendering is not an easy task. In this course on how shadows are incorporated in real-time rendering, attendees learn basic shadowing techniques and more advanced techniques that exploit new features of graphics hardware.The course begins with shadowing techniques using shadow maps. After an introduction to shadow maps and general improvements of this technique (filtering, depth bias, omnidirectional lights, etc.), the first section describes two methods for reducing sampling artifacts: perspective shadow maps and silhouette maps. Both techniques can significantly improve shadow quality, but they require careful implementation. The course continues with extensions of the shadow mapping method that allow soft shadows from linear and area light sources. The second part of the course discusses recent advances in efficient and robust implementation of shadow volumes on graphics hardware and then shows how shadow volumes can be extended to generate accurate soft shadows from area lights. Finally, the course summarizes real-time shadowing from full lighting environments using the technique of precomputed radiance transfer.The course explains the differences among these algorithms and their strengths and weaknesses. Implementation details, often omitted in technical papers, are provided. And throughout the course, the tradeoffs between quality and performance are illustrated for the different techniques.}},
author = {{Kautz, Jan and Akenine-Möller, Tomas and Stamminger, Marc and Chan, Eric and Heidrich, Wolfgang and Kilgard, Mark}},
booktitle = {{International Conference on Computer Graphics and Interactive Techniques ACM SIGGRAPH 2004 Course Notes}},
language = {{eng}},
publisher = {{Association for Computing Machinery (ACM)}},
title = {{Real-Time Shadowing Techniques}},
url = {{http://dx.doi.org/10.1145/1103900.1103927}},
doi = {{10.1145/1103900.1103927}},
year = {{2004}},
}