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Interactive Simulation and Visualization of Fluids with Surface Raycasting

Renan Teston Inacio, Tiago H. C. Nobrega, Diego D. B. Carvalho, Aldo von Wangenheim
LAPIX – Laboratory for Image Processing and Computer Graphics, Federal University of Santa Catarina, Florianopolis, Brazil
23rd SIBGRAPI Conference on Graphics, Patterns and Images, 2010, SIBGRAPI 2010, pp.142-148

@conference{inacio2010interactive,

   title={Interactive Simulation and Visualization of Fluids with Surface Raycasting},

   author={In{‘a}cio, R.T. and Nobrega, T.H.C. and Carvalho, D.D.B. and von Wangenheim, A.},

   booktitle={2010 23rd SIBGRAPI-Conference on Graphics, Patterns and Images},

   pages={142–148},

   year={2010},

   organization={IEEE}

}

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We present a method to couple particle-based fluid simulation methods such as Smoothed Particle Hydrodynamics (SPH) and volume rendering in order to visualize the fluid. A volume is generated from the fluid’s implicit density field so volume raycasting can be performed to render the surface on the GPU. The volume generation algorithm is also implemented in the GPU and is suitable to be used with both SPH simulations implemented on CPU and GPU. We compare different implementations of fluid simulation, demonstrating the modularity of the volume generation method and concluding that it can be used together with other particle-based simulation models and other volume rendering techniques.
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