NDLI: Asynchronous integration with phantom meshes

Content Provider	ACM Digital Library
Author	Harmon, David Zorin, Denis Zhou, Qingnan
Abstract	Asynchronous variational integration of layered contact models provides a framework for robust collision handling, correct physical behavior, and guaranteed eventual resolution of even the most difficult contact problems. Yet, even for low-contact scenarios, this approach is significantly slower compared to its less robust alternatives---often due to handling of stiff elastic forces in an explicit framework. We propose a method that retains the guarantees, but allows for variational implicit integration of some of the forces, while maintaining asynchronous integration needed for contact handling. Our method uses phantom meshes for calculations with stiff forces, which are then coupled to the original mesh through constraints. We use the augmented discrete Lagrangian of the constrained system to derive a variational integrator with the desired conservation properties.
Starting Page	247
Ending Page	256
Page Count	10
File Format	PDF MP4
ISBN	9781450309233
DOI	10.1145/2019406.2019439
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2011-08-05
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Audio Text
Resource Type	Article

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Asynchronous integration with phantom meshes