If you missed SIGGRAPH 2017 watch a selection of recorded Live Streaming Sessions.
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If you missed SIGGRAPH 2017 watch a selection of recorded Live Streaming Sessions.
This paper presents a novel method to enrich standard rigid-body impact models with a spatially varying coefficient-of-restitution map (Bounce Map) and shows that the method not only improves accuracy, but also enables visually richer rigid-body simulations.
Jui-Hsien Wang
Stanford University
Raj Setaluri
Stanford University
Doug James
Pixar Animation Studios, Stanford University
Dinesh Pai
The University of British Columbia
Iterative algorithms are frequently used to resolve simultaneous impacts between rigid bodies. However, these algorithms lack formal guarantees of termination. This paper studies the broad class of such algorithms that are conservative and satisfy a minimal set of physical correctness properties, and fully characterizes finite termination of these algorithms.
Paul Vouga
University of Texas
Breannan Smith
Pixar Animation Studios
Danny Kaufman
Adobe Research
Rasmus Tamstorf
Walt Disney Animation Studios
Eitan Grinspun
Columbia University
This paper analyzes the source of numerical instability in the well-known Gilbert-Johnson-Keerthi (GJK) algorithm, studies its weaknesses, proposes a new method for enhancing its performance, and applies it to finite-element simulations.
Mattia Montanari
University of Oxford
Nik Petrinic
University of Oxford
Ettore Barbieri
Queen Mary University of London
In this anisotropic constitutive model for simulating cloth, knit, and hair frictional contact, the model is discretized with the Material Point Method and a novel update of the deformation gradient. Collision-intensive scenarios with up to one million degrees of freedom run in less than 30 seconds per frame.
Chenfanfu Jiang
University of Pennsylvania
Theodore Gast
University of California, Los Angeles
Joseph Teran
Walt Disney Animation Studios, University of California, Los Angeles
