Autoren: Dieter Morgenroth, Stefan Reinhardt, Bernhard Eberhardt und Daniel Weiskopf"/> Efficient 2D Simulation on Moving 3D Surfaces | News | 23.09.2020 | Institut für Visualisierung und Interaktive Systeme | Universität Stuttgart

23. September 2020 /

Efficient 2D Simulation on Moving 3D Surfaces

Publikation: "Efficient 2D Simulation on Moving 3D Surfaces"
Autoren: Dieter Morgenroth, Stefan Reinhardt, Bernhard Eberhardt und Daniel Weiskopf

Für das diesjährige SCA 2020 (The 19th annual symposium on computer animation) wurde die VISUS-Publikation "Efficient 2D Simulation on Moving 3D Surfaces" von Dieter Morgenroth, Stefan Reinhardt, Bernhard Eberhardt und Daniel Weiskopf angenommen.

Die SCA findet dieses Jahr online vom 6. – 9. Oktober 2020 statt. Das SCA ist das wichtigste Forum für Innovationen von Softwaretechnologien im Bereich der Computeranimation. 

Abstract

We present a method to simulate fluid flow on evolving surfaces, e.g., an oil film on a water surface. Given an animated surface (e.g., extracted from a particle-based fluid simulation) in three-dimensional space, we add a second simulation on this base animation. In general, we solve a partial differential equation (PDE) on a level set surface obtained from the animated input surface. The properties of the input surface are transferred to a sparse volume data structure that is then used for the simulation. We introduce one-way coupling strategies from input properties to our simulation and we add conservation of massand momentum to existing methods that solve a PDE in a narrow-band using the Closest Point Method. In this way, we efficiently compute high-resolution 2D simulations on coarse input surfaces. Our approach helps visual effects creators easily integrate a workflow to simulate material flow on evolving surfaces into their existing production pipeline.

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