Controlling Memory Consumption of Hierarchical Radiosity with Clustering - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Conference Papers Year : 1999

Controlling Memory Consumption of Hierarchical Radiosity with Clustering

Abstract

Memory consumption is a major limitation of current hierarchical radiosity algorithms, including those using clustering. To overcome this drawback we present a new algorithm which reduces the storage required for both the hierarchy of subdivided elements and the links representing light transfers. Our algorithm is based on a link hierarchy, combined with a progressive shooting algorithm. Links are thus stored only when they might transfer energy at subsequent iterations. The push-pull and refine/gather steps of hierarchical radiosity are then combined, allowing the simplification of subtrees of the element hierarchy during refinement. Subdivided polygons replaced by textures and groups of input objects contained in clusters may be deleted. A memory control strategy is then used, forcing links to be established higher in the link hierarchy, limiting the overall memory used. Results of our implementation show significant reduction in memory required for a simulation, without much loss of accuracy or visual quality.
Vignette du fichier
AHM.jpg (275.72 Ko) Télécharger le fichier Fichier principal
Vignette du fichier
Granier_1999_CMC.pdf (177.02 Ko) Télécharger le fichier
Vignette du fichier
crowdLight.jpg (30.19 Ko) Télécharger le fichier
Vignette du fichier
DoubleHall.jpg (35.07 Ko) Télécharger le fichier
Final.GI99.ppt (1.67 Mo) Télécharger le fichier
Vignette du fichier
HC4.jpg (232.4 Ko) Télécharger le fichier
Vignette du fichier
HM.jpg (147.62 Ko) Télécharger le fichier
Vignette du fichier
HS.jpg (174.51 Ko) Télécharger le fichier
Format : Figure, Image
Origin : Files produced by the author(s)
Format : Figure, Image
Format : Figure, Image
Format : Other
Format : Figure, Image
Format : Figure, Image
Format : Figure, Image
Loading...

Dates and versions

inria-00510069 , version 1 (17-08-2010)

Identifiers

Cite

Xavier Granier, George Drettakis. Controlling Memory Consumption of Hierarchical Radiosity with Clustering. Proceedings of Graphics Interface '99, Jun 1999, Kingston, Ontario, Canada. pp.58-65, ⟨10.20380/GI1999.09⟩. ⟨inria-00510069⟩
130 View
69 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More