Yifei Li, Tao Du, Kui Wu, Jie Xu, Wojciech Matusik Cloth simulation has wide applications in computer animation, garment design, and robot-assisted dressing. This work presents a differentiable cloth simulator whose additional gradient information facilitates cloth-related applications. Our differentiable simulator extends a state-of-the-art cloth simulator based on Projective Dynamics (PD) and with dry frictional contact. […]

Han Shao, Libo Huang, Dominik L. Michels Multigrid methods are quite efficient for solving the pressure Poisson equation in simulations of incompressible flow. However, for viscous liquids, geometric multigrid turned out to be less efficient for solving the variational viscosity equation. In this contribution, we present an Unsmoothed Aggregation Algebraic MultiGrid (UAAMG) method with a […]

Shiying Xiong, Zhecheng Wang, Mengdi Wang, Bo Zhu We propose a novel Clebsch method to simulate the free-surface vortical flow. At the center of our approach lies a level-set method enhanced by a wave-function correction scheme and a wave-function extrapolation algorithm to tackle the Clebsch method’s numerical instabilities near a dynamic interface. By combining the […]

Georg Sperl, Rosa M. Sánchez-Banderas, Manwen Li, Chris Wojtan, Miguel A. Otaduy This paper introduces a methodology for inverse-modeling of yarn-level mechanics of cloth, based on the mechanical response of fabrics in the real world. We compiled a database from physical tests of several different knitted fabrics used in the textile industry. These data span […]

Marcel Padilla, Oliver Gross, Felix Knoppel, Albert Chern, Ulrich Pinkall, Peter Schroder Simulation of stellar atmospheres, such as that of our own sun, is a common task in CGI for scientific visualization, movies and games. A fibrous volumetric texture is a visually dominant feature of the solar corona—the plasma that extends from the solar surface […]

Jerry Hsu, Nghia Truong,Cem Yuksel, Kui Wu Initializing simulations of deformable objects involves setting the rest state of all internal forces at the rest shape of the object. However, often times the rest shape is not explicitly provided. In its absence, it is common to initialize by treating the given initial shape as the rest […]

Fresh new 2022 SIGGRAPH papers, coming in hot! Filament Based Plasma Estimation of Yarn-Level Simulation Models for Production Fabrics A Clebsch Method for Free-Surface Vortical Flow Simulation A Fast Unsmoothed Aggregation Algebraic Multigrid Framework for the Large-Scale Simulation of Incompressible Flow Ecoclimates: Climate-Response Modeling of Vegetation DiffCloth: Differentiable Cloth Simulation with Dry Frictional Contact A […]

Dan Koschier, Jan Bender, Barbara Solenthaler, Matthias Teschner Throughout the past decades, the graphics community has spent major resources on the research and development of physics simulators on the mission to computer-generate behaviors achieving outstanding visual effects or to make the virtual world indistinguishable from reality. The variety and impact of recent research based on […]

Qiang Chen, Tingsong Lu, Yang Tong, Guoliang Luo, Xiaogang Jin, Zhigang Deng As one of ubiquitous insects on the earth, butterflies are also widely-knownfor inspiring thrill resonance with their elegant and peculiar flights. However, realistically modeling and simulating butterfly flights, in particular, for real-time graphics and animation applications, remains an under-explored problem. In this paper […]

Teseo Schneider, Yixin Hu, Xifeng Gao, Jeremie Dumas, Denis Zorin, Daniele Panozzo The Finite Element Method (FEM) is widely used to solve discrete Partial Differential Equations (PDEs) in engineering and graphics applications. The popularity of FEM led to the development of a large family of variants, most of which require a tetrahedral or hexahedral mesh […]