kDet: Parallel Constant Time Collision Detection for Polygonal Objects

René Weller, Nicole Debowski and Gabriel Zachmann We define a novel geometric predicate and a class of objects that enables us to prove a linear bound on the number of intersecting polygon pairs for colliding 3D objects in that class. Our predicate is relevant both in theory and in practice: it is easy to check […]

Posted by christopherbatty on June 12th, 2017 | Comments Off on kDet: Parallel Constant Time Collision Detection for Polygonal Objects Posted in Collisions, Deformables

Geometric Stiffness for Real-time Constrained Multibody Dynamics

Sheldon Andrews, Marek Teichmann, Paul Kry This paper focuses on the stable and efficient simulation of articulated rigid body systems for real-time applications. Specifically, we focus on the use of geometric stiffness, which can dramatically increase simulation stability. We examine several numerical problems with the inclusion of geometric stiffness in the equations of motion, as […]

Posted by christopherbatty on June 12th, 2017 | Comments Off on Geometric Stiffness for Real-time Constrained Multibody Dynamics Posted in Rigid bodies

Fluxed Animated Boundary Method

Alexey Stomakhin, Andrew Selle We present a novel approach to guiding physically based particle simulations using boundary conditions. Unlike commonly used ad hoc particle techniques for adding and removing the material from a simulation, our approach is principled by utilizing the concept of volumetric flux. Artists are provided with a simple yet powerful primitive called […]

Posted by christopherbatty on June 8th, 2017 | Comments Off on Fluxed Animated Boundary Method Posted in Fluids

Quasi-Newton Methods for Real-time Simulation of Hyperelastic Materials

Tiantian Liu, Sofien Bouaziz, Ladislav Kavan We present a new method for real-time physics-based simulation supporting many different types of hyperelastic materials. Previous methods such as Position Based or Projective Dynamics are fast, but support only limited selection of materials; even classical materials such as the Neo-Hookean elasticity are not supported. Recently, Xu et al. […]

Posted by christopherbatty on June 5th, 2017 | Comments Off on Quasi-Newton Methods for Real-time Simulation of Hyperelastic Materials Posted in Deformables
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