Weißmann, SteffenPinkall, UlrichHartmut Prautzsch and Alfred Schmitt and Jan Bender and Matthias Teschner2014-02-012014-02-012009978-3-905673-73-9https://doi.org/10.2312/PE/vriphys/vriphys09/001-010We present a fluid solver for the real-time interactive simulation of inviscid, ideal fluid flow. The simulation is based on the evolution of discrete vortex filaments, which allow a dramatic increase of detail and performance compared to traditional methods used in Computer Graphics. As a fully lagrangian method the simulation is not restricted to a fixed domain and does not suffer from numerical dissipation. Vortex filaments arise naturally in real flows and thus provide an excellent building block for modelling realistic smoke. We present a GPU-based implementation which allows the interactive experimentation with 3D fluid flow on desktop computers and also in distributed immersive virtual environments.Categories and Subject Descriptors (according to ACM CCS): Computer Graphics [I.3.7]: Three-Dimensional Graphics and Realism - Animation; Computer Graphics [I.3.5]: Computational Geometry and Object Modeling - Physically based modeling