Author Archives: christopherbatty

Learning Contact Deformations with General Collider Descriptors

Cristian Romero, Dan Casas, Maurizio Chiaramonte, Miguel A. Otaduy This paper presents a learning-based method for the simulation of rich contact deformations on reduced deformation models. Previous works learn deformation models for specific pairs of objects; we lift this limitation … Continue reading →

Posted in Uncategorized | Comments Off on Learning Contact Deformations with General Collider Descriptors

Stable Discrete Bending by Analytic Eigensystem and Adaptive Orthotropic Geometric Stiffness

Zhendong Wang, Yin Yang, Huamin Wang In this paper, we address two limitations of dihedral angle based discrete bending (DAB) models, i.e. the indefiniteness of their energy Hessian and their vulnerability to geometry degeneracies. To tackle the indefiniteness issue, we … Continue reading →

Posted in Uncategorized | Comments Off on Stable Discrete Bending by Analytic Eigensystem and Adaptive Orthotropic Geometric Stiffness

High Density Ratio Multi-fluid Simulation with Peridynamics

Han Yan, Bo Ren Multiple fluid simulation has raised wide research interest in recent years. Despite the impressive successes of current works, simulation of scenes containing mixing or unmixing of high-density-ratio phases using particle-based discretizations still remains a challenging task. … Continue reading →

Posted in Uncategorized | Comments Off on High Density Ratio Multi-fluid Simulation with Peridynamics

GARM-LS: A Gradient-Augmented Reference-Map Method for Level-Set Fluid Simulation

Xingqiao Li*, Xingyu Ni*, Bo Zhu, Bin Wang, and Baoquan Chen (* = joint first authors) This paper presents a novel level-set method that combines gradient augmentation and reference mapping to enable high-fidelity interface tracking and surface tension flow simulation, … Continue reading →

Posted in Uncategorized | Comments Off on GARM-LS: A Gradient-Augmented Reference-Map Method for Level-Set Fluid Simulation

DiffFR: Differentiable SPH-based Fluid-Rigid Coupling for Rigid Body Control

Zhehao Li, Qingyu Xu, Xiaohan Ye, Bo Ren, Ligang Liu Differentiable physics simulation has shown its efficacy in inverse designproblems. Given the pervasiveness of the diverse interactions between fluids and solids in life, a differentiable simulator for the inverse design … Continue reading →

Posted in Uncategorized | Comments Off on DiffFR: Differentiable SPH-based Fluid-Rigid Coupling for Rigid Body Control

Capturing Animation-Ready Isotropic Materials Using Systematic Poking

Huanyu Chen, Danyong Zhao, Jernej Barbič Capturing material properties of real-world elastic solids is both challenging and highly relevant to many applications in computer graphics, robotics and related fields. We give a non-intrusive, in-situ and inexpensive approach to measure the … Continue reading →

Posted in Uncategorized | Comments Off on Capturing Animation-Ready Isotropic Materials Using Systematic Poking

Second-Order Finite Elements for Deformable Surfaces

Qiqin Le, Yitong Deng, Jiamu Bu, Bo Zhu, Tao Du We present a computational framework for simulating deformable surfaces with second-order triangular finite elements. Our method develops numerical schemes for discretizing stretching, shearing, and bending energies of deformable surfaces in … Continue reading →

Posted in Uncategorized | Comments Off on Second-Order Finite Elements for Deformable Surfaces

Fluid Simulation on Neural Flow Maps

Yitong Deng, Hong-Xing Yu, Diyang Zhang, Jiajun Wu, Bo Zhu We introduce Neural Flow Maps, a novel simulation method bridging the emerging paradigm of implicit neural representations with fluid simulation based on the theory of flow maps, to achieve state-of-the-art … Continue reading →

Posted in Uncategorized | Comments Off on Fluid Simulation on Neural Flow Maps

Kirchhoff-Love Shells with Arbitrary Hyperelastic Materials

Jiahao Wen, Jernej Barbič Kirchhoff-Love shells are commonly used in many branches of engineering, including in computer graphics, but have so far been simulated only under limited nonlinear material options. We derive the Kirchhoff-Love thin-shell mechanical energy for an arbitrary … Continue reading →

Posted in Uncategorized | Comments Off on Kirchhoff-Love Shells with Arbitrary Hyperelastic Materials

Neural Stress Fields for Reduced-order Elastoplasticity and Fracture

Zeshun Zong, Xuan Li, Minchen Li, Maurizio M. Chiaramonte, Wojciech Matusik, Eitan Grinspun, Kevin Carlberg, Chenfanfu Jiang, Peter Yichen Chen We propose a hybrid neural network and physics framework for reduced-order modeling of elastoplasticity and fracture. State-of-the-art scientific computing models … Continue reading →

Posted in Uncategorized | Comments Off on Neural Stress Fields for Reduced-order Elastoplasticity and Fracture