Publication detail

Modern Methods of Realistic Lighting in Real Time

SZENTANDRÁSI, I.

Original Title

Modern Methods of Realistic Lighting in Real Time

English Title

Modern Methods of Realistic Lighting in Real Time

Type

conference paper

Language

en

Original Abstract

Physically plausible illumination in real-time is oftenachieved using approximations. Recent methods approximateglobal illumination in the screen space by exploitingthe capabilities of modern graphics cards. Two of thesetechniques, screen-space ambient occlusion and screenspacedirectional occlusion, are described in this work.Screen-space directional occlusion is a generalized versionof screen-space ambient occlusion. It supports one indirectbounce of diffuse light and depends on the direction of incominglight. The main goal of this project is to furtherexperiment with these methods and improve them. Fora uniform distribution of the sampling points, the Haltonsequence is used. In order to reduce the noise, geometryawarebilateral filtering is presented. Methods are furthersped up by computing them in a lower resolution, and theyare restored to full resolution using joint bilateral upsamplingin order to create the final image.

English abstract

Physically plausible illumination in real-time is oftenachieved using approximations. Recent methods approximateglobal illumination in the screen space by exploitingthe capabilities of modern graphics cards. Two of thesetechniques, screen-space ambient occlusion and screenspacedirectional occlusion, are described in this work.Screen-space directional occlusion is a generalized versionof screen-space ambient occlusion. It supports one indirectbounce of diffuse light and depends on the direction of incominglight. The main goal of this project is to furtherexperiment with these methods and improve them. Fora uniform distribution of the sampling points, the Haltonsequence is used. In order to reduce the noise, geometryawarebilateral filtering is presented. Methods are furthersped up by computing them in a lower resolution, and theyare restored to full resolution using joint bilateral upsamplingin order to create the final image.

Keywords

global illumination, ambient occlusion,screen-space ambient occlusion, screen-space directionalocclusion, Halton sequence, bilateral filtering

RIV year

2011

Released

04.05.2011

Publisher

Technical University Wien

Location

Viničné

ISBN

978-3-9502533-3-7

Book

Proceedings of The 15th Central European Seminar on Computer Graphics

Edition

NEUVEDEN

Edition number

NEUVEDEN

Pages from

17

Pages to

24

Pages count

8

URL

BibTex


@inproceedings{BUT76432,
  author="István {Szentandrási}",
  title="Modern Methods of Realistic Lighting in Real Time",
  annote="Physically plausible illumination in real-time is oftenachieved using
approximations. Recent methods approximateglobal illumination in the screen space
by exploitingthe capabilities of modern graphics cards. Two of thesetechniques,
screen-space ambient occlusion and screenspacedirectional occlusion, are
described in this work.Screen-space directional occlusion is a generalized
versionof screen-space ambient occlusion. It supports one indirectbounce of
diffuse light and depends on the direction of incominglight. The main goal of
this project is to furtherexperiment with these methods and improve them. Fora
uniform distribution of the sampling points, the Haltonsequence is used. In order
to reduce the noise, geometryawarebilateral filtering is presented. Methods are
furthersped up by computing them in a lower resolution, and theyare restored to
full resolution using joint bilateral upsamplingin order to create the final
image.",
  address="Technical University Wien",
  booktitle="Proceedings of The 15th Central European Seminar on Computer Graphics",
  chapter="76432",
  edition="NEUVEDEN",
  howpublished="print",
  institution="Technical University Wien",
  year="2011",
  month="may",
  pages="17--24",
  publisher="Technical University Wien",
  type="conference paper"
}