Disney Enterprises, Inc.

Ladislav Kavan

Peter-Pike Sloan

A technique for position based dynamics constrains deformation of triangles within a simulation mesh configured to model a cloth object. The constraints comprise at least a weft, warp, and shear constraint per triangle within the simulation mesh. A non-rigid shear constraint yields realistic cloth dynamics while avoiding locking within the simulation mesh. The technique may be implemented in real-time or batch simulation environments.

Continuum based model for position based dynamics

A technique for physically-based cloth simulation uses linear upsampling operators. The upsampling operators enrich the appearance of a coarse mesh physical cloth simulation. The technique starts by pre-computing the upsampling operators using a pair of coarse and fine training simulations aligned with tracking constraints using harmonic test functions. Then the upsampling operators are trained using a novel regularization technique that enables mid-scale detail learning without over-fitting. Oscillatory modes may be introduced to add dynamic details not captured by the coarse mesh simulation alone. Trained upsampling operators can then be advantageously applied to coarse mesh simulations of cloth to add realistic detail to the cloth in real-time three-dimensional applications.

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Salt Lake City, UT, United States of America

Ladislav Kavan