Author Archives: christopherbatty

An Efficient Geometric Multigrid Solver for Viscous Liquids

Mridul Aanjaneya, Chengguizi Han, Ryan Goldade, Christopher Batty We present an efficient geometric Multigrid solver for simulating viscous liquids based on the variational approach of [Batty and Bridson 2008]. Although the governing equations for viscosity are elliptic, the strong coupling … Continue reading

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A Multi-Pass GAN for Fluid Flow Super-Resolution

Maximilian Werhahn, You Xie, Mengyu Chu, Nils Thuerey We propose a novel method to up-sample volumetric functions with generative neural networks using several orthogonal passes. Our method decomposes generative problems on Cartesian field functions into multiple smaller sub-problems that can … Continue reading

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SCA 2019

Fast Simulation of Deformable Characters with Articulated Skeletons in Projective Dynamics VIPER: Volume Invariant Position-based Elastic Rods A Unified Simplicial Model for Mixed-Dimensional and Non-Manifold Deformable Elastic Objects Small Steps in Physics Simulation Building Accurate Physics-based Face Models from Data … Continue reading

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Hand Modeling and Simulation Using Stabilized Magnetic Resonance Imaging

Bohan Wang, George Matcuk, Jernej Barbič We demonstrate how to acquire complete human hand bone anatomy (meshes) in multiple poses using magnetic resonance imaging (MRI). Such acquisition was previously difficult because MRI scans must be long for high-precision results (over … Continue reading

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Harmonic Triangulations

Marc Alexa We introduce the notion of harmonic triangulations: a harmonic triangulation simultaneously minimizes the Dirichlet energy of all piecewise linear functions. By a famous result of Rippa, Delaunay triangulations are the harmonic triangulations of planar point sets. We prove … Continue reading

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Implicit Untangling: A Robust Solution for Modeling Layered Clothing

Thomas Buffet, Damien Rohmer, Loïc Barthe, Laurence Boissieux, Marie-Paule Cani We propose a robust method for untangling an arbitrary number of cloth layers, possibly exhibiting deep interpenetrations, to a collision-free state, ready for animation. Our method relies on an intermediate, … Continue reading

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Poly-Spline Finite Element Method

Teseo Schneider, Jérémie Dumas, Xifeng Gao, Mario Botsch, Daniele Panozzo, Denis Zorin We introduce an integrated meshing and finite element method pipeline enabling solution of partial differential equations in the volume enclosed by a boundary representation. We construct a hybrid … Continue reading

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Real-Time Fluid Simulation on the Surface of a Sphere

Bowen Yang, William Corse, Jiecong Lu, Joshuah Wolper, Chenfanfu Jiang We present a novel approach for animating incompressible fluids with Eulerian advection-projection solvers on the surface of a sphere by extending the recent work by Hill and Henderson [2016] with … Continue reading

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Efficient and Accurate Collision Response for Elastically Deformable Models

Mickeal Verschoor, Andrei C. Jalba Simulating (elastically) deformable models that can collide with each other and with the environment remains a challenging task. The resulting contact problems can be elegantly approached using Lagrange multipliers to represent the unknown magnitude of … Continue reading

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Deep Fluids: A Generative Network for Parameterized Fluid Simulations

Byungsoo Kim, Vinicius C. Azevedo, Nils Thuerey, Theodore Kim, Markus Gross, Barbara Solenthaler This paper presents a novel generative model to synthesize fluid simulations from a set of reduced parameters. A convolutional neural network is trained on a collection of … Continue reading

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