Author Archives: christopherbatty

Rig My Ride: Automatic Rigging of Physics-based Vehicles for Games

Melissa Katz, Paul G. Kry, Sheldon Andrews We extend the concept of traditional rigging, which links polygonal meshes to an underlying skeleton for 3D characters, to the creation of physics-based wheeled vehicle models directly from surface geometry. Unlike character rigging, … Continue reading

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SCA 2025

Proceedings (all papers freely available): https://dl.acm.org/toc/pacmcgit/2025/8/4

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Progressive Dynamics++: A Framework for Stable, Continuous, and Consistent Animation Across Resolution and Time

Jiayi Eris Zhang, Doug L. James, Danny M. Kaufman The recently developed Progressive Dynamics framework [Zhang et al. 2024] addresses the long-standing challenge in enabling rapid iterative design for high-fidelity cloth and shell animation. In this work, we identify fundamental … Continue reading

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MiSo: A DSL for Robust and Efficient SOLVE and MINIMIZE Problems

Federico Sichetti, Enrico Puppo, Zizhou Huang, Marco Attene, Denis Zorin, Daniele Panozzo Many problems in computer graphics can be formulated as finding theglobal minimum of a function subject to a set of non-linear constraints(Minimize), or finding all solutions of a … Continue reading

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Fast Subspace Fluid Simulation with a Temporally-Aware Basis

Siyuan Chen, Yixin Chen, Jonathan Panuelos, Otman Benchekroun, Yue Chang, Eitan Grinspun, Zhecheng Wang We present a novel reduced-order fluid simulation technique leveraging Dynamic Mode Decomposition (DMD) to achieve fast, memory-efficient, and user-controllable subspace simulation. We demonstrate that our approach … Continue reading

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A Versatile Quaternion-based Constrained Rigid Body Dynamics

Guirec Maloisel, Ruben Grandia, Christian Schumacher, Espen Knoop, Moritz Bächer We present a constrained Rigid Body Dynamics (RBD) that guarantees satisfaction of kinematic constraints, enabling direct simulation of complex mechanical systems with arbitrary kinematic structures. We present a constrained Rigid … Continue reading

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Stochastic Barnes-Hut Approximation for Fast Summation on the GPU

Abhishek Madan, Nicholas Sharp, Francis Williams, Ken Museth, David I.W. Levin We present a novel stochastic version of the Barnes-Hut approximation. Regarding the level-of-detail (LOD) family of approximations as control variates, we construct an unbiased estimator of the kernel sum … Continue reading

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Hyper-Dimensional Deformation Simulation

Alvin Shi, Haomiao Wu, Theodore Kim We present a method for simulating deformable bodies in four spatial dimensions. To accomplish this, we generalize several pieces of the traditional simulation pipeline. Starting from the meshing stage, we propose a simple method … Continue reading

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Real-Time Knit Deformation and Rendering

Tao Huang, Haoyang Shi, Mengdi Wang, Yuxing Qiu, Yin Yang, Kui Wu The knit structure consists of interlocked yarns, with each yarn comprising multiple plies comprising tens to hundreds of twisted fibers. This intricate geometry and the large number of … Continue reading

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Optimal r-Adaptive In-Timestep Remeshing for Elastodynamics

Jiahao Wen, Jernej Barbič, Danny M. Kaufman We propose a coupled mesh-adaptation model and physical simulation algorithm to jointly generate, per timestep, optimal adaptive remeshings and implicit solutions for the simulation of frictionally contacting elastodynamics. To do so, we begin … Continue reading

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