Author Archives: christopherbatty

Conformation Constraints for Efficient Viscoelastic Fluid Simulation An Adaptive Generalized Interpolation Material Point Method for Simulating Elastostatic Materials Interactive Wood Combustion for Botanical Tree Models A Hyperbolic Geometric Flow for Evolving Films and Foams A Unified Particle System Framework for … Continue reading →

Tao Yang, Ralph R. Martin, Ming C. Lin, Jian Chang, and Shi-Min Hu In this paper, we present a novel pairwise-force smoothed particle hydrodynamics (PF-SPH) model to enable simulation of various interactions at interfaces in real time. Realistic capture of … Continue reading →

David Clyde, Joseph Teran, Rasmus Tamstorf Accurate estimation of mechanical parameters for simulation of woven fabrics is essential in many fields. To facilitate this we first present a new orthotropic hyperelastic constitutive model for woven fabrics. Next, we design an … Continue reading →

Ning Jin, Wenlong Lu, Zhenglin Geng, Ronald Fedkiw As has been noted and discussed by various authors, numerical simulations of deformable bodies often adversely suffer from so-called “locking” artifacts. We illustrate that the “locking” of out-of-plane bending motion that results … Continue reading →

Sebastian Eberhardt, Steffen Weissmann, Ulrich Pinkall, Nils Thuerey We propose a novel method to extract hierarchies of vortex filaments from given three-dimensional flow velocity fields. We call these collections of filaments Hierarchical Vorticity Skeletons (HVS). They extract multi-scale information from the input velocity … Continue reading →

Vittorio Megaro, Espen Knoop, Andrew Spielberg, David I.W. Levin, Wojciech Matusik,Markus Gross, Bernhard Thomaszewski, Moritz Bächer In this paper, we present an optimization-based approach for the design of cable-driven kinematic chains and trees. Our system takes as input a hierarchical assembly consisting of rigid links jointed … Continue reading →

Kenny Erleben Iterative methods are popular for solving contact force problems in rigid body dynamics. They are loved for their robustness and surrounded by mystery as to whether they converge or not. We provide a mathematical foundation for iterative (PROX) … Continue reading →

Mattia Montanari, Nik Petrinic, and Ettore Barbieri This article presents a new version of the Gilbert-Johnson-Keerthi (GJK) algorithm that circumvents the shortcomings introduced by degenerate geometries. The original Johnson algorithm and Backup procedure are replaced by a distance subalgorithm that … Continue reading →

Etienne Vouga, Breannan Smith, Danny M. Kaufman, Rasmus Tamstorf, Eitan Grinspun Iterative algorithms are frequently used to resolve simultaneous impacts between rigid bodies in physical simulations. However, these algorithms lack formal guarantees of termination, which is sometimes viewed as potentially … Continue reading →

Shan Yang, Ming C. Lin We present a practical approach for automatically estimating the material properties of soft bodies from two sets of images, taken before and after deformation. We reconstruct 3D geometry from the given sets of multiple-view images; … Continue reading →