Smoke Surfaces: An Interactive Flow Visualization Technique Inspired by Real-World Flow Experiments

Authors:
Wolfram von Funck;Tino Weinkauf;Holger Theisel;Hans-Peter Seidel
Affiliations:
MPI Informatik Saarbücken;Zuse Institute Berlin;University of Magdeburg;MPI Informatik Saarbücken
Venue:
IEEE Transactions on Visualization and Computer Graphics
Year:
2008

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Abstract

Smoke rendering is a standard technique for flow visualization. Most approaches are based on a volumetric, par ticle based, or image based representation of the smoke. This paper introduces an alternative representation of smoke structures: as semi-transparent streak surfaces. In order to make streak surface integration fast enough for interactive applications, we avoid expensive adaptive retriangulations by coupling the opacity of the triangles to their shapes. This way, the surface shows a smoke-like look even in rather turbulent areas. Fur thermore, we show modifications of the approach to mimic smoke nozzles, wool tufts, and time surfaces. The technique is applied to a number of test data sets.