Precomputed Atmospheric Scattering - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Journal Articles Computer Graphics Forum Year : 2008

Precomputed Atmospheric Scattering


We present a new and accurate method to render the atmosphere in real time from any viewpoint from ground level to outer space, while taking Rayleigh and Mie multiple scattering into account. Our method reproduces many effects of the scattering of light, such as the daylight and twilight sky color and aerial perspective for all view and light directions, or the Earth and mountain shadows (light shafts) inside the atmosphere. Our method is based on a formulation of the light transport equation that is precomputable for all view points, view directions and sun directions. We show how to store this data compactly and propose a GPU compliant algorithm to precompute it in a few seconds. This precomputed data allows us to evaluate at runtime the light transport equation in constant time, without any sampling, while taking into account the ground for shadows and light shafts. More informations :
Vignette du fichier
a.jpg (53.1 Ko) Télécharger le fichier Fichier principal
Vignette du fichier
article.pdf (2.06 Mo) Télécharger le fichier
Vignette du fichier
b.jpg (37.13 Ko) Télécharger le fichier
Vignette du fichier
c.jpg (26.39 Ko) Télécharger le fichier
Vignette du fichier
d.jpg (19.93 Ko) Télécharger le fichier
video.avi (23.16 Mo) Télécharger le fichier
Format : Figure, Image
Origin : Files produced by the author(s)
Format : Figure, Image
Format : Figure, Image
Format : Figure, Image
Format : Other

Dates and versions

inria-00288758 , version 1 (18-06-2008)



Eric Bruneton, Fabrice Neyret. Precomputed Atmospheric Scattering. Computer Graphics Forum, 2008, Special Issue: Proceedings of the 19th Eurographics Symposium on Rendering 2008, 27 (4), pp.1079-1086. ⟨10.1111/j.1467-8659.2008.01245.x⟩. ⟨inria-00288758⟩
14570 View
29305 Download



Gmail Facebook Twitter LinkedIn More