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  Single Sample Soft Shadows Using Depth Maps

Brabec, S., & Seidel, H.-P. (2002). Single Sample Soft Shadows Using Depth Maps. In M. McCool, & W. Stürzlinger (Eds.), Proceedings of Graphics Interface 2002 (pp. 219-228). Natick, USA: A K Peters.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-307E-B Version Permalink: https://hdl.handle.net/21.11116/0000-000E-6EE1-9
Genre: Conference Paper

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

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Free keywords: -
 Abstract: In this paper we propose a new method for rendering soft shadows at interactive
frame rates. Although the algorithm only uses information obtained from a
single light source sample, it is capable of producing subjectively realistic
penumbra regions. We do not claim that the proposed method is physically
correct but rather that it is aesthetically correct. Since the algorithm
operates on sampled representations of the scene, the shadow computation does
not directly depend on the scene complexity. Having only a single depth and
object ID map representing the pixels seen by the light source, we can
approximate penumbrae by searching the neighborhood of pixels warped from the
camera view for relevant blocker information.

We explain the basic technique in detail, showing how simple observations can
yield satisfying results. We also address sampling issues relevant to the
quality of the computed shadows, as well as speed-up techniques that are able
to bring the performance up to interactive frame rates.

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Language(s): eng - English
 Dates: 2003-08-112002
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 202164
Other: Local-ID: C125675300671F7B-0738FE02D2E46A7DC1256C9F0074CF17-Brabec:SSS:2002
DOI: 10.20380/GI2002.25
BibTex Citekey: Brabec-Seidel_GI02
 Degree: -

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Title: Graphics Interface 2002
Place of Event: Calgary, Canada
Start-/End Date: 2002-05-27 - 2002-05-29

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Title: Proceedings of Graphics Interface 2002
  Abbreviation : GI 2002
Source Genre: Proceedings
 Creator(s):
McCool, Michael1, Editor
Stürzlinger, Wolfgang1, Editor
Affiliations:
1 External Organizations, ou_persistent22            
Publ. Info: Natick, USA : A K Peters
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 219 - 228 Identifier: ISBN: 1-56881-183-7