Monthly Archives: May 2007

Continuous Collision Detection for Articulated Models using Taylor Models and Temporal Culling

“We present a fast continuous collision detection (CCD) algorithm for articulated models using Taylor models and temporal culling. Our algorithm is a generalization of conservative advancement (CA) from convex models [Mirtich 1996] to articulated models with non-convex links. Given the … Continue reading

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Adaptively Sampled Particle Fluids

“We present novel adaptive sampling algorithms for particle-based fluid simulation. We introduce a sampling condition based on geometric local feature size that allows focusing computational resources in geometrically complex regions, while reducing the number of particles deep inside the fluid … Continue reading

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Isosurface Stuffing: Fast Tetrahedral Meshing with Good Dihedral Angles

“The isosurface stuffing algorithm fills an isosurface with a uniformly sized tetrahedral mesh whose dihedral angles are bounded between 10.7◦ and 164.8◦, or (with a change in parameters) between 8.9◦ and 158.8◦. The algorithm is whip fast, numerically robust, and … Continue reading

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A Finite Element Method for Animating Large Viscoplastic Flow

“We present an extension to Lagrangian finite element methods to allow for large plastic deformations of solid materials. These behaviors are seen in such everyday materials as shampoo, dough, and clay as well as in fantastic gooey and blobby creatures … Continue reading

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A Fast Variational Framework for Accurate Solid-Fluid Coupling

“Physical simulation has emerged as a compelling animation technique, yet current approaches to coupling simulations of fluids and solids with irregular boundary geometry are inefficient or cannot handle some relevant scenarios robustly. We propose a new variational approach which allows … Continue reading

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A Variational Approach to Eulerian Geometry Processing

“We present a purely Eulerian framework for geometry processing of surfaces and foliations. Contrary to current Eulerian methods used in graphics, we use conservative methods and a variational interpretation, offering a unified framework for routine surface operations such as smoothing, … Continue reading

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Curl-Noise for Procedural Fluid Flow

“Procedural methods for animating turbulent fluid are often preferred over simulation, both for speed and for the degree of animator control. We offer an extremely simple approach to efficiently generating turbulent velocity fields based on Perlin noise, with a formula … Continue reading

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