Proceedings Article, Paper
@InProceedings
Beitrag in Tagungsband, Workshop


Show entries of:

this year (2019) | last year (2018) | two years ago (2017) | Notes URL

Action:

login to update

Options:








Author, Editor

Author(s):

Elek, Oskar
Ritschel, Tobias
Wilkie, Alexander
Seidel, Hans-Peter

dblp
dblp
dblp
dblp

Not MPG Author(s):

Wilkie, Alexander

Editor(s):

Brooks, Stephen
Hawkey, Kirstie

dblp
dblp

Not MPII Editor(s):

Brooks, Stephen
Hawkey, Kirstie

BibTeX cite key*:

Elek2012a

Title, Booktitle

Title*:

Interactive cloud rendering using temporally-coherent photon mapping

Booktitle*:

Proceedings of Graphics Interface 2012

Event, URLs

URL of the conference:

http://www.graphicsinterface.org/

URL for downloading the paper:


Event Address*:

Toronto, Canada

Language:

English

Event Date*
(no longer used):


Organization:

Canadian Information Processing Society

Event Start Date:

28 May 2012

Event End Date:

30 May 2012

Publisher

Name*:

Canadian Information Processing Society

URL:


Address*:

Toronto, Ontario, Canada

Type:


Vol, No, Year, pp.

Series:

Graphics Interface 2012

Volume:


Number:


Month:

May

Pages:

141-148

Year*:

2012

VG Wort Pages:

8

ISBN/ISSN:


Sequence Number:


DOI:




Note, Abstract, ©


(LaTeX) Abstract:

This paper presents an interactive algorithm for simulation of light transport in clouds. Exploiting the high temporal coherence of the typical illumination and morphology of clouds we build on volumetric photon mapping, which we modify to allow for interactive rendering speeds --- instead of building a fresh irregular photon map for every scene state change we accumulate photon contributions in a regular grid structure. This is then continuously being refreshed by re-shooting only a fraction of the total amount of photons in each frame. To maintain its temporal coherence and low variance, a low-resolution grid is used, and is then upsampled to the density field resolution in each frame. We also present a technique to store and reconstruct the angular illumination information by exploiting properties of the standard Henyey-Greenstein phase function, namely its ability to express anisotropic angular distributions with a single dominating direction.
The presented method is physically-plausible, conceptually simple and comparatively easy to implement. Moreover, it operates only on the cloud density field, thus not requiring any precomputation, and handles all light sources typical for the given environment, i.e. where one of the light sources dominates.

URL for the Abstract:

http://www.oskee.wz.cz/stranka/oskee.php?id=1223749027#Elek2012

Copyright Message:

Graphics Interface Conference 2012 28-30 May, Toronto, Ontario, Canada
Copyright held by authors. Permission granted to CHCCS/SCDHM to publish in print form, and ACM to publish electronically.


Download
Access Level:

Public

Correlation

MPG Unit:

Max-Planck-Institut für Informatik



MPG Subunit:

Computer Graphics Group

MPG Subsubunit:

Rendering Sub-Group

Research Context:

physically-based rendering, real-time rendering, GPU

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:

@INPROCEEDINGS{Elek2012a,
AUTHOR = {Elek, Oskar and Ritschel, Tobias and Wilkie, Alexander and Seidel, Hans-Peter},
EDITOR = {Brooks, Stephen and Hawkey, Kirstie},
TITLE = {Interactive cloud rendering using temporally-coherent photon mapping},
BOOKTITLE = {Proceedings of Graphics Interface 2012},
PUBLISHER = {Canadian Information Processing Society},
YEAR = {2012},
ORGANIZATION = {Canadian Information Processing Society},
PAGES = {141--148},
SERIES = {Graphics Interface 2012},
ADDRESS = {Toronto, Canada},
MONTH = {May},
}


Entry last modified by Oskar Elek, 01/30/2013
Show details for Edit History (please click the blue arrow to see the details)Edit History (please click the blue arrow to see the details)
Hide details for Edit History (please click the blue arrow to see the details)Edit History (please click the blue arrow to see the details)

Editor(s)
Oskar Elek
Created
01/11/2013 07:48:06 PM
Revision
1.
0.


Editor
Oskar Elek
Oskar Elek


Edit Date
01/30/2013 01:18:01 PM
01/11/2013 07:48:06 PM


Show details for Attachment SectionAttachment Section
Hide details for Attachment SectionAttachment Section