Interactive volume visualization on a heterogeneous message-passing multicomputer

Authors:
Andrei State;Jonathan McAllister;Ulrich Neumann;Hong Chen;Tim J. Cullip;David T. Chen;Henry Fuchs
Affiliations:
Department of Computer Science, University of North Carolina at Chapel Hill, Chapel Hill, NC;Department of Computer Science, University of North Carolina at Chapel Hill, Chapel Hill, NC;Computer Science Department, University of Southern California, Henry Salvatori 338, Los Angeles, CA;Department of Computer Science, University of North Carolina at Chapel Hill, Chapel Hill, NC;-;-;Department of Computer Science, University of North Carolina at Chapel Hill, Chapel Hill, NC
Venue:
I3D '95 Proceedings of the 1995 symposium on Interactive 3D graphics
Year:
1995

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Abstract

This paper describes VOL2, an interactive general-purpose volume renderer based on ray casting and implemented on Pixel-Planes 5, a distributed-memory, message-passing multicomputer. VOL2 is a pipelined renderer using image-space task parallelism and object-space data partitioning. We describe the parallelization and load balancing techniques used in order to achieve interactive response and near-real-time frame rates. We also present a number of applications for our system and derive some general conclusions about operation of image-order rendering algorithms on message-passing multicomputers.