Category Archives: Uncategorized

Efficient Enforcement of Hard Articulation Constraints in the Presence of Closed Loops and Contacts

Robin Tomcin, Dominik Sibbing, Leif Kobbelt In rigid body simulation, one must distinguish between contacts (so-called unilateral constraints) and articulations (bilateral constraints). For contacts and friction, iterative solution methods have proven most useful for interactive applications, often in combination with … Continue reading

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SPH Fluids in Computer Graphics

Markus Ihmsen, Jens Orthmann, Barbara Solenthaler, Andreas Kolb, and Matthias Teschner Smoothed Particle Hydrodynamics (SPH) has been established as one of the major concepts for fluid animation in computer graphics. While SPH initially gained popularity for interactive free-surface scenarios, it has … Continue reading

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Deformation Embedding for Point-Based Elastoplastic Simulation

B. Jones, S. Ward, A. Jallepalli, J. Perenia, and A. W. Bargteil We present a straightforward, easy-to-implement, point-based approach for animating elastoplastic materials. The core idea of our approach is the introduction of embedded space, the least-squares best fit of the … Continue reading

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Enhancements to Model-Reduced Fluid Simulation

Dan Gerszewski, Ladislav Kavan, Peter-Pike Sloan, Adam W. Bargteil We present several enhancements to model-reduced fluid simulation that allow improved simulation bases and two-way solid-fluid coupling. Specifically, we present a basis enrichment scheme that allows us to combine data driven or artistically derived … Continue reading

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Large-Scale Liquid Simulation on Adaptive Hexahedral Grids

Florian Ferstl, Rudiger Westermann, Christian Dick Regular grids are attractive for numerical fluid simulations because they give rise to efficient computational kernels. However, for simulating high resolution effects in complicated domains they are only of limited suitability due to memory … Continue reading

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Robust Simulation of Small-Scale Thin Features in SPH-based Free Surface Flows

Xiaowei He, Huamin Wang, Fengjun Zhang, Hongan Wang, Guoping Wang, Kun Zhou Smoothed particle hydrodynamics (SPH) is efficient, mass preserving, and flexible in handling topological changes. However, small-scale thin features are difficult to simulate in SPH-based free surface flows, due to a number of robustness and … Continue reading

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IISPH-FLIP for Incompressible Fluids

J. Cornelis, M. Ihmsen, A. Peer, M. Teschner We propose to use Implicit Incompressible Smoothed Particle Hydrodynamics (IISPH) for pressure projection and boundary handling in Fluid-Implicit-Particle (FLIP) solvers for the simulation of incompressible fluids. This novel combination addresses two issues of existing … Continue reading

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Fracture animation based on high-dimensional Voronoi diagrams

Sara Schvartzmann, Miguel Otaduy We propose a novel algorithm to simulate brittle fracture. It augments previous methods based on Voronoi diagrams, improving their versatility and their ability to adapt fracture patterns automatically to diverse collision scenarios and object properties. We … Continue reading

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A Semi-Lagrangian Closest Point Method for Deforming Surfaces

Stefan Auer, Rudiger Westermann We present an Eulerian method for the real-time simulation of intrinsic fluid dynamics effects on deforming surfaces. Our method is based on a novel semi-Lagrangian closest point method for the solution of partial differential equations on … Continue reading

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Constrainable Multigrid For Cloth

Inyong Jeon, Kwang-Jin Choi, Tae-Yong Kim, Bong-Ouk Choi, and Hyeong-Seok Ko We present a new technique which can handle both point and sliding constraints in the multigrid (MG) framework. Although the MG method can theoretically perform as fast as O(N), the … Continue reading

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