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Laboratoire d'InfoRmatique en Image et Systèmes d'information

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Laboratoire d'InfoRmatique en Image et Systèmes d'information
UMR 5205 CNRS / INSA de Lyon / Université Claude Bernard Lyon 1 / Université Lumière Lyon 2 / École Centrale de Lyon
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International conference with reviewing committee

Multi-Layer Level of Detail For Character Animation [PDF]
Yann Savoye [LIRIS] , Alexandre Meyer [LIRIS]
11/2008
Dans Workshop on Virtual Reality Interaction and Physical Simulation VRIPHYS, Grenoble, France.

Abstract

Real-time animation of human-like characters has been an active research area in computer graphics. Nowadays, more and more applications need to render various realistic scenes with human motion in crowds for interactive virtual environments. Animation and level of detail are well explored fields but little has been done to generate level of detail automatically for dynamic articulated meshes. Our approach is based on the combination of three interesting layers for run-time level of detail in character crowd animation: the skeleton, the mesh and the mo- tion. We build a Multiresolution Skeletal Graph to simplify the skeleton topology progressively. In contrast with previous works, we use a Dual-Graph Based Simplification for articulated meshes, where the triangle decimation is driven by triangle compactness, to build a dynamic, continuous, progressive and selective mesh level of detail. We also present Power Skinning to ensure the stability of Linear Smooth Skinning, during the simplification, with an efficient multi-weight update rule.

BibTex

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@InProceedings{Liris-3547,
  title         = {{Multi-Layer Level of Detail For Character Animation}},
  author        = {Yann {Savoye} and Alexandre {Meyer}},
  year          = {2008},
  month         = nov,
  booktitle     = {Workshop on Virtual Reality Interaction and Physical 
    Simulation VRIPHYS},
   language      = {en},
  url           = {http://liris.cnrs.fr/publis/?id=3547}
}