Geodesic Voxel Binding for Production Character Meshes

Dionne, Olivier; Lasa, Martin de

Geodesic Voxel Binding for Production Character Meshes

Date

2013

Authors

Dionne, Olivier
Lasa, Martin de

Publisher

ACM SIGGRAPH / Eurographics Association

Abstract

We propose a fully automatic method for specifying influence weights for closed-form skinning methods, such as linear blend skinning. Our method is designed to work with production meshes that may contain non-manifold geometry, be non-watertight, have intersecting triangles, or be comprise of multiple connected components. Starting from a character rest pose mesh and skeleton hierarchy, we first voxelize the input geometry. The resulting voxelization is then used to calculate binding weights, based on the geodesic distance between each voxel lying on a skeleton ''bone'' and all non-exterior voxels. This yields smooth weights at interactive rates, without time-constants, iteration parameters, or costly optimization at bind or pose time. By decoupling weight assignment from distance computation we make it possible to modify weights interactively, at pose time, without additional pre-processing or computation. This allows artists to assess impact of weight selection in the context in which they are used.

        @inproceedings{10.1145:2485895.2485919
,
booktitle = {Eurographics/ ACM SIGGRAPH Symposium on Computer Animation
},
editor = {Theodore Kim and Robert Sumner
},
title = {{Geodesic Voxel Binding for Production Character Meshes
}},
author = {Dionne, Olivier and 
Lasa, Martin de
},
year = {2013
},
publisher = {ACM SIGGRAPH / Eurographics Association
},
ISSN = {1727-5288
},
ISBN = {978-1-4503-2132-7
},
DOI = {10.1145/2485895.2485919
}
}

URI

https://doi.org/10.1145/2485895.2485919

Collections

SCA 13: Eurographics/SIGGRAPH Symposium on Computer Animation

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