HAL : inria-00480869, version 3

DOI : 10.1145/1837026.1837049

Voir la fiche détaillée

BibTeX,EndNote,... BibTeX - EndNote - TEI - RefWorks -

ACM SIGGRAPH 2010 Talks, Los Angeles, California : États-Unis (2010)

Versions disponibles

v1 (05-05-2010)

v2 (20-07-2010)

v3 (19-11-2010)

A Deferred Shading Algorithm for Real-Time Indirect Illumination

Cyril Soler 1, 2, Olivier Hoel 1, 2, Frank Rochet 1

(01/08/2010)

We present a deferred shading algorithm for computing screen-space multi-bounce indirect illumination with visibility, in real time. For each frame, we compute mipmapped G-Buffers of depth, normals, illumination and voxelized geometry. To each mipmap level we apply a single shader that gathers screen-space illumination using local Monte-Carlo integration. We upsample the illumination for all levels and smoothly combine them together. Our calculation is approximate but does not show artifacts, because it relies on noise-free Monte-Carlo integration of incoming illumination and temporal filtering. Our method simulates arbitrary distant illumination including visibility at a very low cost, because we only perform local texture lookups during computation. Besides, its deferred shading nature makes it independent of geometric and lighting complexity.

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 Grenoble 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

Domaine

:

Informatique/Synthèse d'image et réalité virtuelle

inria-00480869, version 3

http://hal.inria.fr/inria-00480869

oai:hal.inria.fr:inria-00480869

Contributeur : Nicolas Holzschuch <>

Soumis le : Lundi 15 Novembre 2010, 13:37:55

Dernière modification le : Vendredi 26 Novembre 2010, 12:17:46