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Author, Editor

Author(s):

Herzog, Robert
Havran, Vlastimil
Kinuwaki, Shinichi
Myszkowski, Karol
Seidel, Hans-Peter

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Not MPG Author(s):

Havran, Vlastimil
Kinuwaki, Shinichi

Editor(s):





BibTeX Citekey*:

HerzogReport2007

Language:

English

Title, Institution

Title*:

Global Illumination using Photon Ray Splatting

Institution*:

MPI Informatik

Publishers or Institutions Address*:

Saarbruecken, Germany

Type:

Research Report

No, Year, pp.,

Number*:

MPI-I-2007-4-007

Pages*:

66

Month:

May

VG Wort
Pages*:


Year*:

2007

ISBN/ISSN:






DOI:




Note, Abstract, ©

Note:


(LaTeX) Abstract:

We present a novel framework for efficiently computing the indirect illumination in diffuse and moderately glossy scenes using density estimation techniques.
A vast majority of existing global illumination approaches either quickly computes an approximate solution, which may not be adequate for previews, or performs a much more time-consuming computation to obtain high-quality results for the indirect illumination. Our method improves photon density estimation, which is an approximate solution, and leads to significantly better visual quality in particular for complex geometry, while only slightly increasing the computation time. We perform direct splatting of photon rays, which allows us to use simpler search data structures. Our novel lighting computation is derived from basic radiometric theory and requires only small changes to existing photon splatting approaches.
Since our density estimation is carried out in ray space rather than on surfaces, as in the commonly used photon mapping algorithm, the results are more robust against geometrically incurred sources of bias. This holds also in combination with final gathering where photon mapping often overestimates the illumination near concave geometric features. In addition, we show that our splatting technique can be extended to handle moderately glossy surfaces and can be combined with traditional irradiance caching for sparse sampling and filtering in image space.

Categories / Keywords:

Three-Dimensional Graphics and Realism - Rendering, Global Illumination, Photon Density Estimation, Filtering, Radiance Caching

Copyright Message:


HyperLinks / References / URLs:


Personal Comments:


File Upload:


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Access Level:

Public

Correlation

MPG Unit:

Max-Planck-Institut für Informatik



MPG Subunit:

Computer Graphics Group

Audience:

experts only

Appearance:

MPII WWW Server, MPII FTP Server, MPG publications list, university publications list, working group publication list, Fachbeirat, VG Wort


BibTeX Entry:
@TECHREPORT{HerzogReport2007,
AUTHOR = {Herzog, Robert and Havran, Vlastimil and Kinuwaki, Shinichi and Myszkowski, Karol and Seidel, Hans-Peter},
TITLE = {Global Illumination using Photon Ray Splatting},
YEAR = {2007},
TYPE = {Research Report},
INSTITUTION = {MPI Informatik},
NUMBER = {MPI-I-2007-4-007},
PAGES = {66},
ADDRESS = {Saarbruecken, Germany},
MONTH = {May},
}


Entry last modified by Robert Herzog, 02/28/2008
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Editor(s)
Robert Herzog
Created
01/02/2008 05:39:59 PM
Revision
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Editor
Robert Herzog
Robert Herzog


Edit Date
01/02/2008 07:05:15 PM
01/02/2008 05:39:59 PM


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