Interactive Ray Tracing of Time Varying Data
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Date
2002Author
Reinhard, Erik
Hansen, Charles
Parker, Steve
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We present a simple and effective algorithm for ray tracing iso-surfaces of time varying data sets. Each time step is partitioned into separate ranges of potentional iso-surface values. This creates a large number of relatively small files. Out-of-core rendering is implemented by reading for each time step the relevant iso-surface file, which contains its own spatial subdivision as well as the volumetric data. Since any of these data partitions is smaller than a single time step, the I/O bottleneck is overcome. Our method capitalizes on the ability of modern architectures to stream data off disk without interference of the operating system. Additionally, only a fraction of a time-step is held in memory at any moment during the visualization, which significantly reduces the required amount of internal memory.
BibTeX
@inproceedings {10.2312:EGPGV:EGPGV02:077-082,
booktitle = {Eurographics Workshop on Parallel Graphics and Visualization},
editor = {D. Bartz and X. Pueyo and E. Reinhard},
title = {{Interactive Ray Tracing of Time Varying Data}},
author = {Reinhard, Erik and Hansen, Charles and Parker, Steve},
year = {2002},
publisher = {The Eurographics Association},
ISSN = {1727-348X},
ISBN = {1-58113-579-3},
DOI = {10.2312/EGPGV/EGPGV02/077-082}
}
booktitle = {Eurographics Workshop on Parallel Graphics and Visualization},
editor = {D. Bartz and X. Pueyo and E. Reinhard},
title = {{Interactive Ray Tracing of Time Varying Data}},
author = {Reinhard, Erik and Hansen, Charles and Parker, Steve},
year = {2002},
publisher = {The Eurographics Association},
ISSN = {1727-348X},
ISBN = {1-58113-579-3},
DOI = {10.2312/EGPGV/EGPGV02/077-082}
}