Papers by David Baraff


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Virtual Tailoring for Ratatouille: Clothing the Fattest Man in the World

Christine Waggoner, David Baraff
May 2007

He's fat. Enormously so. Essentially a clothed sphere. (A very deformable and complexly animated sphere, with legs, arms, and no neck.) For Ratatouille, creating dynamic costumes for every human character in the film required extensive development and innovation in Pixar's cloth pipeline, particularly for the character Gusteau. Modeling and shepherding ... more

Paper (PDF)

Available as Pixar Technical Memo #07-07


Untangling Cloth

David Baraff, Andrew Witkin, Michael Kass
August 2003

Deficient cloth-to-cloth collision response is the most serious shortcoming of most cloth simulation systems. Past approaches to cloth-cloth collision have used history to decide wheter nearby cloth regions have interpenetrated. The biggest pitfall of history-based methods is that an error anywhere along the way can give rise to persistent tangles...This ... more

Paper (PDF)

Available in the Proceedings of SIGGRAPH 2003