Journal Article
@Article
Artikel in Fachzeitschrift


Show entries of:

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

Action:

login to update

Options:








Author, Editor(s)

Author(s):

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

dblp
dblp
dblp
dblp

Not MPG Author(s):

Wilkie, Alexander

BibTeX cite key*:

Elek2012b

Title

Title*:

Interactive cloud rendering using temporally-coherent photon mapping

Journal

Journal Title*:

Computers & Graphics

Journal's URL:

http://www.journals.elsevier.com/computers-and-graphics/

Download URL
for the article:


Language:

English

Publisher

Publisher's
Name:

Elsevier

Publisher's URL:

http://www.elsevier.com/

Publisher's
Address:

Amsterdam

ISSN:


Vol, No, pp, Date

Volume*:

36

Number:

8

Publishing Date:

October 2012

Pages*:

1109-1118

Number of
VG Pages:

10

Page Start:

1109

Page End:

1118

Sequence Number:


DOI:

10.1016/j.cag.2012.10.002

Note, Abstract, ©

Note:


(LaTeX) Abstract:

This work presents a novel 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 initially used, and is then upsampled to the density field resolution on a physical basis in each frame. We also present a technique to store and reconstruct the angular illumination information by exploiting properties of the standard Henyey-Greenstein 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 above 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:


Categories,
Keywords:

participating media, natural phenomena, real-time rendering, photon mapping, physically-based rendering

HyperLinks / References / URLs:


Copyright Message:


Personal Comments:


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

Appearance:

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


BibTeX Entry:

@ARTICLE{Elek2012b,
AUTHOR = {Elek, Oskar and Ritschel, Tobias and Wilkie, Alexander and Seidel, Hans-Peter},
TITLE = {Interactive cloud rendering using temporally-coherent photon mapping},
JOURNAL = {Computers & Graphics},
PUBLISHER = {Elsevier},
YEAR = {2012},
NUMBER = {8},
VOLUME = {36},
PAGES = {1109--1118},
ADDRESS = {Amsterdam},
MONTH = {October},
DOI = {10.1016/j.cag.2012.10.002},
}


Entry last modified by Anja Becker, 04/03/2013
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 08:37:14 PM
Revision
1.
0.


Editor
Anja Becker
Oskar Elek


Edit Date
03.04.2013 14:48:36
01/11/2013 08:37:14 PM


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