Technical Papers

Dynamics

Thursday, 29 November 16:15 - 18:15 |  Peridot 201

Large-Scale Fluid Simulation using Velocity-Vorticity Domain Decomposition - Picture

Large-Scale Fluid Simulation using Velocity-Vorticity Domain Decomposition

A hybrid fluid simulation method for large-scale scenes is proposed. Our novel algorithm couples grid-based simulations with vortex singularity methods providing performance benefits and a reduced memory footprint. It enables compact representation of velocity fields as vortex particles and flexibility to choose appropriate simulation methods for different subdomains


Abhinav Golas, University of North Carolina, Chapel Hill
Rahul Narain, University of California, Berkeley
Jason Sewall, Intel Corporation
Pavel Krajcevski, University of North Carolina at Chapel Hill
Pradeep Dubey, Intel Corporation
Ming Lin, University of North Carolina at Chapel Hill


Staggered Meshless Solid-Fluid Coupling - Picture

Staggered Meshless Solid-Fluid Coupling

We present a staggered meshless method to overcome the difficulties in simulating the solid-fluid coupling with the meshless methods. The method is novel in that it provides a powerful tool to implement the stable one-way and two-way coupling between the fluids and rigid bodies.


Xiaowei He, Chinese Academy of Sciences/Peking University
Ning Liu, Peking University
Guoping Wang, Peking University
Fengjun Zhang, Chinese Academy of Sciences
Sheng Li, Peking University
Songdong Shao, University of Bradford
Hongan Wang, Chinese Academy of Sciences


Automated constraint placement to maintain pile shape - Picture

Automated constraint placement to maintain pile shape

We present a simulation control to support art-directable stacking designs by automatically adding constraints to stabilize the stacking structure.


Shu-Wei Hsu, Computer Science, Texas A&M
John Keyser, Texas A&M University


Speculative Parallel Asynchronous Contact Mechanics - Picture

Speculative Parallel Asynchronous Contact Mechanics

We focus on provably correct simulations and show how to achieve a 200-600x speedup of Asynchronous Contact Mechanics. We replace expensive kinetic data structures with a rollback mechanism for handling collisions. This change alone provides a significant speedup, but it also enables force computation to be easily parallelized.


Samantha Ainsley, Columbia University
Etienne Vouga, Columbia University
Eitan Grinspun, Columbia University
Rasmus Tamstorf, Disney Animation


Adaptive Anisotropic Remeshing for Cloth Simulation - Picture

Adaptive Anisotropic Remeshing for Cloth Simulation

We present a technique for cloth simulation that dynamically refines and coarsens triangle meshes so that they automatically conform to the geometric and dynamic detail of the cloth. Our technique produces anisotropic meshes that adapt to surface curvature, velocity gradients, and buckling behavior, allowing efficient modeling of wrinkles and waves.


Rahul Narain, University of California, Berkeley
Armin Samii, University of California, Berkeley
James O'Brien, University of California, Berkeley