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Scalable Interactive Volume Rendering Using Off-the-shelf Components

Lombeyda, Santiago and Moll, Laurent and Shand, Mark and Breen, David and Heirich, Alan (2001) Scalable Interactive Volume Rendering Using Off-the-shelf Components. California Institute of Technology . (Unpublished)

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This paper describes an application of a second generation implementation of the Sepia architecture (Sepia-2) to interactive volu-metric visualization of large rectilinear scalar fields. By employingpipelined associative blending operators in a sort-last configuration a demonstration system with 8 rendering computers sustains 24 to 28 frames per second while interactively rendering large data volumes (1024x256x256 voxels, and 512x512x512 voxels). We believe interactive performance at these frame rates and data sizes is unprecedented. We also believe these results can be extended to other types of structured and unstructured grids and a variety of GL rendering techniques including surface rendering and shadow map-ping. We show how to extend our single-stage crossbar demonstration system to multi-stage networks in order to support much larger data sizes and higher image resolutions. This requires solving a dynamic mapping problem for a class of blending operators that includes Porter-Duff compositing operators.

Item Type:Report or Paper (Technical Report)
Group:Center for Advanced Computing Research
Subject Keywords:sort-last, parallel, cluster, shear-warp, volume rendering, ray-casting, shadow mapping, CFD, VolumePro, OpenGl, VIA, Clos
Record Number:CaltechCACR:CACR-2001-189
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Usage Policy:You are granted permission for individual, educational, research and non-commercial reproduction, distribution, display and performance of this work in any format.
ID Code:28156
Deposited By: Imported from CaltechCACR
Deposited On:18 Mar 2004
Last Modified:03 Oct 2019 03:29

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