Monthly Archives: April 2020

SIGGRAPH 2020

Homogenized Yarn-Level Cloth A Model for Soap Film Dynamics with Evolving Thickness Fast and Scalable Turbulent Flow Simulation with Two-Way Coupling Constraint Bubbles and Affine Regions: Reduced Fluid Models for Efficient Immersed Bubbles and Flexible Spatial Coarsening Robust Eulerian-on-Lagrangian Rods … Continue reading

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Homogenized Yarn-Level Cloth

Georg Sperl, Rahul Narain, Chris Wojtan We present a method for animating yarn-level cloth effects using a thin-shell solver. We accomplish this through numerical homogenization: we first use a large number of yarn-level simulations to build a model of the … Continue reading

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A Model for Soap Film Dynamics with Evolving Thickness

Sadashige Ishida*, Peter Synak*, Fumiya Narita, Toshiya Hachisuka, Chris Wojtan Previous research on animations of soap bubbles, films, and foams largely focuses on the motion and geometric shape of the bubble surface. These works neglect the evolution of the bubble’s … Continue reading

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Fast and Scalable Turbulent Flow Simulation with Two-Way Coupling

Wei Li, Yixin Chen, Mathieu Desbrun, Changxi Zheng, Xiaopei Liu Despite their cinematic appeal, turbulent flows involving fluid-solid coupling remain a computational challenge in animation. At the root of the current limitation is the numerical dispersion from which most accurateNavier-Stokes … Continue reading

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Hierarchical Optimization Time Integration for CFL-rate MPM Stepping

Xinlei Wang*, Minchen Li*, Yu Fang, Xinxin Zhang, Ming Gao, Min Tang, Danny M. Kaufman, Chenfanfu Jiang We propose Hierarchical Optimization Time Integration (HOT) for efficient implicit time-stepping of the Material Point Method (MPM) irrespective of simulated materials and conditions. … Continue reading

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Constraint Bubbles and Affine Regions: Reduced Fluid Models for Efficient Immersed Bubbles and Flexible Spatial Coarsening

Ryan Goldade, Mridul Aanjaneya, Christopher Batty We propose to enhance the capability of standard free-surface flow simulators with efficient support for immersed bubbles through two new models: constraint-based bubbles and affine fluid regions. Unlike its predecessors, our constraint-based model entirely … Continue reading

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Medial Elastics:Efficient and Collision-ready Deformation via Medial Axis Transform

Lei Lan, Ran Luo, Marco Fratarcangeli, Weiwei Xu, Huamin Wang, Xiaohu Guo, Junfeng Yao, Yin Yang We propose a framework for the interactive simulation of nonlinear de-formable objects. The primary feature of our system is the seamless integration of deformable … Continue reading

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Robust Eulerian-on-Lagrangian Rods

Rosa M. Sánchez-Banderas, Alejandro Rodríguez, Héctor Barreiro, Miguel A. Otaduy This paper introduces a method to simulate complex rod assemblies and stacked layers with implicit contact handling, through Eulerian-on-Lagrangian (EoL) discretizations. Previous EoL methods fail to handle such complex situations, … Continue reading

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Simulation of Dendritic Painting

José A. Canabal, Miguel A. Otaduy, Byungmoon Kim, Jose Echevarria We present a new system for interactive dendritic painting. Dendritic painting is characterized by the unique and intricate branching patterns that grow from the interaction of inks, solvents and medium. … Continue reading

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