Bullet Physics Update

From Erwin Coumans: Bullet 2.68 adds rope, cloth, deformable volumes interacting with rigid bodies, and officlal iPhone SDK support. See http://bulletphysics.com for more info, download precompiled Windows and Mac OSX demos and iPhone video.

Posted by christopherbatty on April 20th, 2008 | Comments Off on Bullet Physics Update Posted in Cloth, Deformables, Rigid bodies

Cubic Shells

Hinge-based bending models are widely used in the physically-based animation of cloth, thin plates and shells. We propose a hinge-based model that is simpler to implement, more efficient to compute, and offers a greater number of effective material parameters than existing models. Our formulation builds on two mathematical observations: (a) the bending energy of curved […]

Posted by christopherbatty on June 7th, 2007 | Comments Off on Cubic Shells Posted in Cloth, Deformables, Shells

Efficient Simulation of Inextensible Cloth

“Many textiles do not noticeably stretch under their own weight. Unfortunately, for better performance many cloth solvers disregard this fact. We propose a method to obtain very low strain along the warp and weft direction using Constrained Lagrangian Mechanics and a novel fast projection method. The resulting algorithm acts as a velocity filter that easily […]

Posted by christopherbatty on May 15th, 2007 | Comments Off on Efficient Simulation of Inextensible Cloth Posted in Cloth

TRACKS: Toward Directable Thin Shells

“We combine the often opposing forces of artistic freedom and mathematical determinism to enrich a given animation or simulation of a surface with physically based detail. We present a process called tracking, which takes as input a rough animation or simulation and enhances it with physically simulated detail. Building on the foundation of constrained Lagrangian […]

Posted by christopherbatty on May 11th, 2007 | Comments Off on TRACKS: Toward Directable Thin Shells Posted in Cloth, Shells

Discrete Quadratic Bending Energies

“We present a family of discrete isometric bending models (IBMs) for triangulated surfaces in 3-space. These models are derived from an axiomatic treatment of discrete Laplace operators, using these operators to obtain linear models for discrete mean curvature from which bending energies are assembled. Under the assumption of isometric surface deformations we show that these […]

Posted by christopherbatty on March 29th, 2007 | Comments Off on Discrete Quadratic Bending Energies Posted in Cloth
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