Interactive Visualization of Flood and Heavy Rain Simulations

dc.contributor.authorCornel, Danielen_US
dc.contributor.authorButtinger-Kreuzhuber, Andreasen_US
dc.contributor.authorKonev, Artemen_US
dc.contributor.authorHorváth, Zsolten_US
dc.contributor.authorWimmer, Michaelen_US
dc.contributor.authorHeidrich, Raimunden_US
dc.contributor.authorWaser, Jürgenen_US
dc.contributor.editorGleicher, Michael and Viola, Ivan and Leitte, Heikeen_US
dc.date.accessioned2019-06-02T18:27:08Z
dc.date.available2019-06-02T18:27:08Z
dc.date.issued2019
dc.description.abstractIn this paper, we present a real-time technique to visualize large-scale adaptive height fields with C1-continuous surface reconstruction. Grid-based shallow water simulation is an indispensable tool for interactive flood management applications. Height fields defined on adaptive grids are often the only viable option to store and process the massive simulation data. Their visualization requires the reconstruction of a continuous surface from the spatially discrete simulation data. For regular grids, fast linear and cubic interpolation are commonly used for surface reconstruction. For adaptive grids, however, there exists no higher-order interpolation technique fast enough for interactive applications. Our proposed technique bridges the gap between fast linear and expensive higher-order interpolation for adaptive surface reconstruction. During reconstruction, no matter if regular or adaptive, discretization and interpolation artifacts can occur, which domain experts consider misleading and unaesthetic. We take into account boundary conditions to eliminate these artifacts, which include water climbing uphill, diving towards walls, and leaking through thin objects. We apply realistic water shading with visual cues for depth perception and add waves and foam synthesized from the simulation data to emphasize flow directions. The versatility and performance of our technique are demonstrated in various real-world scenarios. A survey conducted with domain experts of different backgrounds and concerned citizens proves the usefulness and effectiveness of our technique.en_US
dc.description.number3
dc.description.sectionheadersBest Paper Award Nominees
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume38
dc.identifier.doi10.1111/cgf.13669
dc.identifier.issn1467-8659
dc.identifier.pages25-39
dc.identifier.urihttps://doi.org/10.1111/cgf.13669
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf13669
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.titleInteractive Visualization of Flood and Heavy Rain Simulationsen_US
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