HAL - INRIA :: [inria-00442462, version 1] Hierarchical Screen Space Indirect Illumination For Video Games

inria-00442462, version 1

%% inria-00442462, version 1
%% http://hal.inria.fr/inria-00442462/en/
@techreport{SOLER:2009:INRIA-00442462:1,
	title = { {H}ierarchical {S}creen {S}pace {I}ndirect {I}llumination {F}or {V}ideo {G}ames},
	author = {{S}oler, {C}yril and {H}oel, {O}livier and {R}ochet, {F}ranck and {J}ay, {F}rederic and {H}olzschuch, {N}icolas},
	abstract = {{I}ndirect lighting accounts for subtle but essential effects in virtual scenes, and plays a great role in our perception of geometry. {I}t is especially wanted in video games, on fully dynamic scenes, where it greatly enhances the perceived realism. {I}n this paper, we present a screen-space hierarchical algorithm for computing indirect lighting for animated scenes. {O}ur algorithm is fully compatible with deferred-shading rendering engines for video games, and computes indirect lighting in less than 10 ms, leaving enough computation time for other gaming tasks, such as interaction and animation. {O}ur algorithm works in two steps: first, we compute indirect illumination in screen-space at all possible scales, then we filter and combine together the illumination received at the different scales. {W}e describe both the algorithm and its practical integration inside a commercial video-game rendering engine.},
	keywords = {{I}ndirect {I}llumination; {S}creen-{S}pace; {D}eferred {S}hading; {R}eal {T}ime},
	language = {{A}nglais},
	affiliation = {{L}aboratoire {J}ean {K}untzmann - {LJK} - {CNRS} : {UMR}5224 - {U}niversit{\'e} {J}oseph {F}ourier - {G}renoble {I} - {U}niversit{\'e} {P}ierre {M}end{\`e}s-{F}rance - {G}renoble {II} - {I}nstitut {P}olytechnique de {G}renoble - {ARTIS} - {INRIA} {R}h{\^o}ne-{A}lpes / {LJK} {L}aboratoire {J}ean {K}untzmann - {CNRS} : {FR}71 - {INRIA} - {L}aboratoire {J}ean {K}untzmann - {CNRS} : {UMR}5224 - {U}niversit{\'e} {J}oseph {F}ourier - {G}renoble {I} - {I}nstitut {N}ational {P}olytechnique de {G}renoble - {INPG} - {EDEN} {G}ames - {EDEN} {G}ames },
	pages = {22 },
	type = {Research Report},
	institution = {INRIA},
	number = {{RR}-7162},
    day = {21},
    month = {12},
    year = {2009},
    URL = {http://hal.inria.fr/inria-00442462/en/},
    URL = {http://hal.inria.fr/inria-00442462/PDF/RR-7162.pdf},
}

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Hierarchical Screen Space Indirect Illumination For Video Games

Cyril Soler (

)^b^, 1, 2, Olivier Hoel (

)^b^, 1, 2, Franck Rochet (

)^a^, 3, Frederic Jay (

)^a^, 3, Nicolas Holzschuch (

http://artis.inrialpes.fr/~Nicolas.Holzschuch/

)^b^, 1, 2

(21/12/2009)

Accès au texte intégral
PDF

Résumé : Indirect lighting accounts for subtle but essential effects in virtual scenes, and plays a great role in our perception of geometry. It is especially wanted in video games, on fully dynamic scenes, where it greatly enhances the perceived realism. In this paper, we present a screen-space hierarchical algorithm for computing indirect lighting for animated scenes. Our algorithm is fully compatible with deferred-shading rendering engines for video games, and computes indirect lighting in less than 10 ms, leaving enough computation time for other gaming tasks, such as interaction and animation. Our algorithm works in two steps: first, we compute indirect illumination in screen-space at all possible scales, then we filter and combine together the illumination received at the different scales. We describe both the algorithm and its practical integration inside a commercial video-game rendering engine.

a –	EDEN Games
b –	INRIA
1 :	Laboratoire Jean Kuntzmann (LJK)
	CNRS : UMR5224 – Université Joseph Fourier - Grenoble I – Université Pierre Mendès-France - Grenoble II – Institut Polytechnique de Grenoble
2 :	ARTIS (INRIA Rhône-Alpes / LJK Laboratoire Jean Kuntzmann)
	CNRS : FR71 – INRIA – Laboratoire Jean Kuntzmann – CNRS : UMR5224 – Université Joseph Fourier - Grenoble I – Institut National Polytechnique de Grenoble - INPG
3 :	EDEN Games
	EDEN Games

Domaine

Informatique/Synthèse d'image et réalité virtuelle

Mots-clés : Indirect Illumination – Screen-Space – Deferred Shading – Real Time

Référence interne : RR-7162


inria-00442462, version 1
http://hal.inria.fr/inria-00442462/fr/
oai:hal.inria.fr:inria-00442462_v1
Contributeur : Cyril Soler <>
Soumis le : Lundi 21 Décembre 2009, 14:33:59
Dernière modification le : Lundi 4 Janvier 2010, 09:42:22