Dense Geometric Flow Visualization
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Date
2005
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
We present a flow visualization technique based on rendering geometry in a dense, uniform distribution. Flow is integrated using particle advection. By adopting ideas from texture-based techniques and taking advantage of parallelism and programmability of contemporary graphics hardware, we generate streamlines and pathlines addressing both steady and unsteady flow. Pipelining is used to manage seeding, advection, and expiration of streamlines/ pathlines with constant lifetime. We achieve high numerical accuracy by enforcing short particle lifetimes and employing a fourth-order integration method. The occlusion problem inherent to dense volumetric representations is addressed by applying multi-dimensional transfer functions (MDTFs), restricting particle attenuation to regions of certain physical behavior, or features. Geometry is rendered in graphics hardware using techniques such as depth sorting, illumination, haloing, flow orientation, and depth-based color attenuation to enhance visual perception. We achieve dense geometric three-dimensional flow visualization with interactive frame rates.
Description
@inproceedings{:10.2312/VisSym/EuroVis05/021-028,
booktitle = {EUROVIS 2005: Eurographics / IEEE VGTC Symposium on Visualization},
editor = {Ken Brodlie and David Duke and Ken Joy},
title = {{Dense Geometric Flow Visualization}},
author = {Park, Sung W. and Budge, Brian and Linsen, Lars and Hamann, Bernd and Joy, Kenneth I.},
year = {2005},
publisher = {The Eurographics Association},
ISSN = {1727-5296},
ISBN = {3-905673-19-3},
DOI = {/10.2312/VisSym/EuroVis05/021-028}
}