Article

Volumetric shadows using splatting

Authors:

Roger CrawfisAuthors Info & Claims

VIS '02: Proceedings of the conference on Visualization '02

Pages 85 - 92

Published: 27 October 2002 Publication History

Abstract

This paper describes an efficient algorithm to model the light attenuation due to a participating media with low albedo. The light attenuation is modeled using splatting volume renderer for both the viewer and the light source. During the rendering, a 2D shadow buffer attenuates the light for each pixel. When the contribution of a footprint is added to the image buffer, as seen from the eye, we add the contribution to the shadow buffer, as seen from the light source. We have generated shadows for point lights and parallel lights using this algorithm. The shadow algorithm has been extended to deal with multiple light sources and projective textured lights.

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Cited By

Jönsson DSundén EYnnerman ARopinski T(2014)A Survey of Volumetric Illumination Techniques for Interactive Volume RenderingComputer Graphics Forum10.1111/cgf.1225233:1(27-51)Online publication date: 1-Feb-2014
https://dl.acm.org/doi/10.1111/cgf.12252
Yang MFei GShi MZhan Y(2006)A simple, efficient method for real-time simulation of smoke shadowProceedings of the 16th international conference on Advances in Artificial Reality and Tele-Existence10.1007/11941354_65(633-642)Online publication date: 29-Nov-2006
https://dl.acm.org/doi/10.1007/11941354_65
Stewart A(2003)Vicinity Shading for Enhanced Perception of Volumetric DataProceedings of the 14th IEEE Visualization 2003 (VIS'03)10.1109/VISUAL.2003.1250394Online publication date: 22-Oct-2003
https://dl.acm.org/doi/10.1109/VISUAL.2003.1250394
Show More Cited By

Index Terms

Volumetric shadows using splatting
1. Computing methodologies
  1. Computer graphics
    1. Image manipulation
      1. Texturing
    2. Rendering

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Information

Published In

cover image ACM Conferences

VIS '02: Proceedings of the conference on Visualization '02

October 2002

583 pages

ISBN:0780374983

Conference Chairs:
Hanspeter Pfister
Mitsubishi Electric Research Laboratories
,
Mike Bailey
San Diego Supercomputer Center
,
Program Chairs:
J. Edward Swan
The Naval Research Laboratory
,
Jim Thomas
Pacific Northwest National Laboratory

Sponsors

SIGGRAPH: ACM Special Interest Group on Computer Graphics and Interactive Techniques
ITCVG: IEEE Computer Society Technical Committee on Visualization and Graphics

Publisher

IEEE Computer Society

United States

Publication History

Published: 27 October 2002

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VIS02: IEEE Visualization 2002

October 27 - November 1, 2002

Massachusetts, Boston

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Cited By

Jönsson DSundén EYnnerman ARopinski T(2014)A Survey of Volumetric Illumination Techniques for Interactive Volume RenderingComputer Graphics Forum10.1111/cgf.1225233:1(27-51)Online publication date: 1-Feb-2014
https://dl.acm.org/doi/10.1111/cgf.12252
Yang MFei GShi MZhan Y(2006)A simple, efficient method for real-time simulation of smoke shadowProceedings of the 16th international conference on Advances in Artificial Reality and Tele-Existence10.1007/11941354_65(633-642)Online publication date: 29-Nov-2006
https://dl.acm.org/doi/10.1007/11941354_65
Stewart A(2003)Vicinity Shading for Enhanced Perception of Volumetric DataProceedings of the 14th IEEE Visualization 2003 (VIS'03)10.1109/VISUAL.2003.1250394Online publication date: 22-Oct-2003
https://dl.acm.org/doi/10.1109/VISUAL.2003.1250394
Zhang CCrawfis R(2003)Shadows and Soft Shadows with Participating Media Using SplattingIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2003.11960029:2(139-149)Online publication date: 1-Apr-2003
https://dl.acm.org/doi/10.1109/TVCG.2003.1196002

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