Monthly Archives: September 2018

Inverse Elastic Shell Design with Contact and Friction

Mickaël Ly, Romain Casati, Florence Bertails-Descoubes, Mélina Skouras, Laurence Boissieux We propose an inverse strategy for modeling thin elastic shells physically, just from the observation of their geometry. Our algorithm takes as input an arbitrary target mesh, and interprets this … Continue reading

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An Explicit Structure Preserving numerical scheme for EPDiff

Omri Azencot, Orestis Vantzos and Mirela Ben-Chen We present a new structure-preserving numerical scheme for solving the Euler–Poincaré Differential (EPDiff) equation on arbitrary triangle meshes. Unlike existing techniques, our method solves the difficult non-linear EPDiff equation by constructing energy preserving, … Continue reading

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Real-Time Viscous Thin Films

Orestis Vantzos, Saar Raz and Mirela Ben-Chen We propose a novel discrete scheme for simulating viscous thin films at real-time frame rates. Our scheme is based on a new formulation of the gradient flow approach, that leads to a discretization … Continue reading

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Analytic Eigensystems for Isotropic Distortion Energies

Breannan Smith, Fernando de Goes, Theodore Kim Many strategies exist for optimizing non-linear distortion energies in geometry and physics applications, but devising an approach that achieves the convergence promised by Newton-type methods remains challenging. In order to guarantee the positive … Continue reading

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I-Cloth: Incremental Collision Handling for GPU-Based Interactive Cloth Simulation

Min Tang, Tongtong Wang, Zhongyuan Liu, Ruofeng Tong, and Dinesh Manocha We present an incremental collision handling algorithm for GPU-based interactive cloth simulation. Our approach exploits the spatial and temporal coherence between successive iterations of an optimization-based solver for collision … Continue reading

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Decoupling Simulation Accuracy from Mesh Quality

Teseo Schneider, Yixin Hu, Jeremie Dumas, Xifeng Gao, Daniele Panozzo, Denis Zorin For a given PDE problem, three main factors affect the accuracy of FEM solutions: basis order, mesh resolution, and mesh element quality. The first two factors are easy … Continue reading

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SIGGRAPH Asia 2018

GPU Optimization of Material Point Methods Hybrid Grains: Adaptive Coupling of Discrete and Continuum Simulations of Granular Media Decoupling Simulation Accuracy from Mesh Quality Real-Time Viscous Thin Films I-Cloth: Incremental Collision Handling for GPU-Based Interactive Cloth Simulation Accurate Dissipative Forces … Continue reading

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Editing Fluid Animation Using Flow Interpolation

Syuhei Sato, Yoshinori Dobashi, Tomoyuki Nishita The computational cost for creating realistic fluid animations by numerical simulation is generally expensive. In digital production environments, existing precomputed fluid animations are often reused for different scenes in order to reduce the cost of … Continue reading

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Hybrid Grains: Adaptive Coupling of Discrete and Continuum Simulations of Granular Media

Yonghao Yue*, Breannan Smith*, Peter Yichen Chen*, Maytee Chantharayukhonthorn*, Ken Kamrin, Eitan Grinspun We propose a technique to simulate granular materials that exploits the dual strengths of discrete and continuum treatments. Discrete element simulations provide unmatched levels of detail and … Continue reading

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GPU Optimization of Material Point Methods

Ming Gao*, Xinlei Wang*, Kui Wu*, Andre Pradhana, Eftychios Sifakis, Cem Yuksel, Chenfanfu Jiang The Material Point Method (MPM) has been shown to facilitate effective simulations of physically complex and topologically challenging materials, with a wealth of emerging applications in … Continue reading

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