Cable Joints

Matthias Müller, Nuttapong Chentanez, Stefan Jeschke, Miles Macklin Robustly and efficiently simulating cables and ropes that are part of a larger system such as cable driven machines, cable cars or tendons in a human or robot is a challenging task. To be able to adapt to the environment, cables are typically modeled as a large […]

Posted by christopherbatty on July 20th, 2018 | Comments Off on Cable Joints Posted in Hair/Rods/Rope, Rigid bodies, Rods

Distributing and Load Balancing Sparse Fluid Simulations

Chinmayee Shah, David Hyde, Hang Qu, and Philip Levis This paper describes a general algorithm and a system for load balancing sparse fluid simulations. Automatically distributing sparse fluid simulations efficiently is challenging because the computational load varies across the simulation domain and time. A key challenge with load balancing is that optimal decision making requires […]

Posted by christopherbatty on July 20th, 2018 | Comments Off on Distributing and Load Balancing Sparse Fluid Simulations Posted in Fluids

Fast Corotated FEM using Operator Splitting

Tassilo Kugelstadt, Dan Koschier, Jan Bender In this paper we present a novel operator splitting approach for corotated FEM simulations. The deformation energy of the corotated linear material model consists of two additive terms. The first term models stretching in the individual spatial directions and the second term describes resistance to volume changes. By formulating […]

Posted by christopherbatty on July 16th, 2018 | Comments Off on Fast Corotated FEM using Operator Splitting Posted in Deformables

An Extended Partitioned Method for Conservative Solid-Fluid Coupling

Muzaffer Akbay, Nicholas Nobles, Victor Zoran, Tamar Shinar We present a novel extended partitioned method for two-way solid-fluid coupling, where the fluid and solid solvers are treated as black boxes with limited exposed interfaces, facilitating modularity and code reusability. Our method achieves improved stability and extended range of applicability over standard partitioned approaches through three […]

Posted by christopherbatty on July 15th, 2018 | Comments Off on An Extended Partitioned Method for Conservative Solid-Fluid Coupling Posted in Deformables, Fluids, Rigid bodies

HairControl: A Tracking Solution for Directable Hair Simulation

Antoine Milliez, Bob Sumner, Markus Gross, Bernhard Thomaszewski We present a method for adding artistic control to physics-based hair simulation. Taking as input an animation of a coarse set of guide hairs, we constrain a subsequent higher-resolution simulation of detail hairs to follow the input motion in a spatially-averaged sense. The resulting high-resolution motion adheres […]

Posted by christopherbatty on July 14th, 2018 | Comments Off on HairControl: A Tracking Solution for Directable Hair Simulation Posted in Hair/Rods/Rope

Projective peridynamics for modeling versatile elastoplastic materials

Xiaowei He, Huamin Wang, Enhua Wu Unified simulation of versatile elastoplastic materials and different dimensions offers many advantages in animation production, contact handling, and hardware acceleration. The unstructured particle representation is particularly suitable for this task, thanks to its simplicity. However, previous meshless techniques either need too much computational cost for addressing stability issues, or […]

Posted by christopherbatty on July 14th, 2018 | Comments Off on Projective peridynamics for modeling versatile elastoplastic materials Posted in Deformables

Cosserat Rods with Projective Dynamics

Carlota Soler, Tobias Martin, Olga Sorkine-Hornung We present a novel method to simulate Cosserat rods with Projective Dynamics (PD). The proposed method is both numerically robust and accurate with respect to the underlying physics, making it suitable for a variety of applications in computer graphics and related disciplines. Cosserat theory assigns an orientation frame to […]

Posted by christopherbatty on July 2nd, 2018 | Comments Off on Cosserat Rods with Projective Dynamics Posted in Hair/Rods/Rope, Rods

A Temporally Adaptive Material Point Method with Regional Time Stepping

Yu Fang, Yuanming Hu, Shi-Min Hu, Chenfanfu Jiang Spatially and temporally adaptive algorithms can substantially improve the computational efficiency of many numerical schemes in computational mechanics and physics-based animation. Recently, a crucial need for temporal adaptivity in the Material Point Method (MPM) is emerging due to the potentially substantial variation of material stiffness and velocities in […]

Posted by christopherbatty on July 2nd, 2018 | Comments Off on A Temporally Adaptive Material Point Method with Regional Time Stepping Posted in Deformables, Fluids

Time-Domain Parallelization for Accelerating Cloth Simulation

Junbang Liang, Ming C. Lin Cloth simulations, widely used in computer animation and apparel design, can be computationally expensive for real-time applications. Some parallelization techniques have been proposed for visual simulation of cloth using CPU or GPU clusters and often rely on parallelization using spatial domain decomposition techniques that have a large communication overhead. In […]

Posted by christopherbatty on July 2nd, 2018 | Comments Off on Time-Domain Parallelization for Accelerating Cloth Simulation Posted in Cloth, Deformables