Coupling 3D Eulerian, Heightfield and Particle Methods for Interactive Simulation of Large Scale Liquid Phenomena

IEEE Transactions on Visualization and Computer Graphics
Nuttapong ChentanezTae-Yong Kim

Abstract

We propose a new method to simulate large scale water phenomena by combining particle, 3D grid and height field methods. In contrast to most hybrid approaches that use particles to simulate foam and spray only, we also represent the bulk of water near the surface with both particles and a grid depending on the regions of interest and switch between those two representations during the course of the simulation. For the coupling we leverage the recent idea of tracking the water surface with a density field in grid based methods. Combining particles and a grid simulation then amounts to adding the density field of the particles and the one stored on the grid. For open scenes, we simulate the water outside of the 3D grid domain by solving the Shallow Water Equations on a height field. We propose new methods to couple these two domains such that waves travel naturally across the border. We demonstrate the effectiveness of our approach in various scenarios including a whale breaching simulation, all running in real-time or at interactive rates.

References

May 10, 2008·IEEE Transactions on Visualization and Computer Graphics·Frank LosassoRonald Fedkiw
Mar 14, 2012·IEEE Transactions on Visualization and Computer Graphics·Ryoichi AndoReiji Tsuruno
Nov 10, 2013·IEEE Transactions on Visualization and Computer Graphics·Nuttapong Chentanez, Matthias Müller

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Citations

Jul 7, 2017·IEEE Transactions on Visualization and Computer Graphics·Bo RenShi-Min Hu

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