Aggarwal, Vibhor, Debattista, Kurt, Dubla, Piotr, Bashford-Rogers, Thomas and Chalmers, Alan (2009) Time-constrained high-fidelity rendering on local desktop grids. In: Debattista, Kurt and Weiskopf, D. and Comba, J. and Fellner, D. W., (eds.) EG PGV 2009 : 9th eurographics symposium on parallel graphics and visualization : Munich, Germany : March 29-30, 2009. Aire-la-Ville, Switzerland: Eurographics Association, pp. 103-110. ISBN 9783905674156

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Abstract

Parallel computing has been frequently used for reducing the rendering time of high-fidelity images, since the generation of such images has a high computational cost. Numerous algorithms have been proposed for parallel rendering but they primarily focus on utilising shared memory machines or dedicated distributed clusters. A local desktop grid, composed of arbitrary computational resources connected to a network such as those in a lab or an enterprise, provides an inexpensive alternative to dedicated clusters. The computational power offered by such a desktop grid is time-variant as the resources are not dedicated. This paper presents fault-tolerant algorithms for rendering high-fidelity images on a desktop grid within a given time-constraint. Due to the dynamic nature of resources, the task assignment does not rely on subdividing the image into tiles. Instead, a progressive approach is used that encompasses aspects of the entire image for each task and ensures that the time-constraints are met. Traditional reconstruction techniques are used to calculate the missing data. This approach is designed to avoid redundancy to maintain time-constraints. As a further enhancement, the algorithm decomposes the computation into components representing different tasks to achieve better visual quality considering the time-constraint and variable resources. This paper illustrates how the component-based approach maintains a better visual fidelity considering a given time-constraint while making use of volatile computational resources.

Item Type:	Book Item
Divisions:	Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)
Publisher:	Eurographics Association
Place of Publication:	Aire-la-Ville, Switzerland
ISBN:	9783905674156
Book Title:	EG PGV 2009 : 9th eurographics symposium on parallel graphics and visualization : Munich, Germany : March 29-30, 2009
Editor:	Debattista, Kurt and Weiskopf, D. and Comba, J. and Fellner, D. W.
Date:	2009
Number of Pages:	114
Page Range:	pp. 103-110
Identification Number:	10.2312/EGPGV/EGPGV09/103-110
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Description:	Eurographics Symposium Proceedings
URI:	http://wrap.warwick.ac.uk/id/eprint/48083

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