SIMPLE FLEXIBLE SKINNING BASED ON MANIFOLD MODELING

Franck Hétroy, Cédric Gérot, Lin Lu, Boris Thibert

2009

Abstract

In this paper we propose a simple framework to compute flexible skinning weights, which allows the creation from quasi-rigid to soft deformations. We decompose the input mesh into a set of overlapping regions, in a way similar to the constructive manifold approach. Regions are associated to skeleton bones, and overlaps contain vertices influenced by several bones. A smooth transition function is then defined on overlaps, and is used to compute skinning weights. The size of overlaps can be tuned by the user, enabling an easy control of the desired type of deformations.

References

  1. Attene, M., Spagnuolo, M., and Falcidieno, B. (2006). Hierarchical mesh segmentation based on fitting primitives. The Visual Computer, 22(3):181-193.
  2. Aujay, G., Hétroy, F., Lazarus, F., and Depraz, C. (2007). Harmonic skeleton for realistic character animation. In Symposium on Computer Animation, pages 151- 160, San Diego, USA.
  3. Baran, I. and Popovic, J. (2007). Automatic rigging and animation of 3d characters. ACM Transactions on Graphics (SIGGRAPH proceedings), 26(3):72.
  4. Bendels, G. and Klein, R. (2003). Mesh forging: Editing of 3d-meshes using implicitly defined occluders. In Symposium on Geometry Processing, pages 207-217, Aachen, Germany.
  5. Bloomenthal, J. (2002). Medial-based vertex deformation. In Symposium on Computer Animation, pages 147- 151, San Antonio, USA.
  6. de Goes, F., Goldenstein, S., and Velho, L. (2008). A hierarchical segmentation of articulated bodies. Computer Graphics Forum (Symposium on Geometry Processing proceedings), 27(5):1349-1356.
  7. Forstmann, S., Ohya, J., Krohn-Grimberghe, A., and McDougall, R. (2007). Deformation styles for splinebased skeletal animation. In Symposium on Computer Animation, pages 141-150, San Diego, USA.
  8. Grimm, C. (2004). Parameterization using manifolds. International Journal of Shape Modeling, 10(1):51-80.
  9. Grimm, C. and Hughes, J. (1995). Modeling surfaces of arbitrary topology. In SIGGRAPH, pages 359-367, Los Angeles, USA.
  10. Grimm, C. and Zorin, D. (2005). Surface modeling and parameterization with manifolds. In SIGGRAPH Course Notes, Los Angeles, USA.
  11. Katz, S. and Tal, A. (2003). Hierarchical mesh decomposition using fuzzy clustering and cuts. ACM Transactions on Graphics (SIGGRAPH proceedings), 22(3):954-961.
  12. Kavan, L., Collins, S., Zara, J., and O'Sullivan, C. (2007). Skinning with dual quaternions. In Symposium on Interactive 3D Graphics and Games, pages 39-46, Seattle, USA.
  13. Merry, B., Marais, P., and Gain, J. (2006). Animation space: a truly linear framework for character animation. ACM Transactions on Graphics, 25(4):1400- 1423.
  14. Mohr, A., Tokheim, L., and Gleicher, M. (2003). Direct manipulation of interactive character skins. In Symposium on Interactive 3D Graphics and Games, pages 27-30, Monterey, USA.
  15. Navau, J. C. and Garcia, N. P. (2000). Modeling surfaces from meshes of arbitrary topology. Computer Aided Geometric Design, 17(1):643-671.
  16. Praun, E., Finkelstein, A., and Hoppe, H. (2000). Lapped textures. In SIGGRAPH, pages 465-470, New Orleans, USA.
  17. Rohmer, D., Hahmann, S., and Cani, M. (2008). Local volume preservation for skinned characters. Computer Graphics Forum (Pacific Graphics proceedings), 27(7).
  18. Wang, R., Pulli, K., and Popovic, J. (2007). Realtime enveloping with rotational regression. ACM Transactions on Graphics (SIGGRAPH proceedings), 26(3):73.
  19. Weber, O., Sorkine, O., Lipman, Y., and Gotsman, C. (2007). Context-aware skeletal shape deformation. Computer Graphics Forum (Eurographics proceedings), 26(3):265-274.
  20. Ying, L. and Zorin, D. (2004). A simple manifoldbased construction of surfaces of arbitrary smoothness. ACM Transactions on Graphics (SIGGRAPH proceedings), 23(3):271-275.
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Paper Citation


in Harvard Style

Hétroy F., Gérot C., Lu L. and Thibert B. (2009). SIMPLE FLEXIBLE SKINNING BASED ON MANIFOLD MODELING . In Proceedings of the Fourth International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2009) ISBN 978-989-8111-67-8, pages 259-265. DOI: 10.5220/0001767602590265


in Bibtex Style

@conference{grapp09,
author={Franck Hétroy and Cédric Gérot and Lin Lu and Boris Thibert},
title={SIMPLE FLEXIBLE SKINNING BASED ON MANIFOLD MODELING},
booktitle={Proceedings of the Fourth International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2009)},
year={2009},
pages={259-265},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001767602590265},
isbn={978-989-8111-67-8},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Fourth International Conference on Computer Graphics Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2009)
TI - SIMPLE FLEXIBLE SKINNING BASED ON MANIFOLD MODELING
SN - 978-989-8111-67-8
AU - Hétroy F.
AU - Gérot C.
AU - Lu L.
AU - Thibert B.
PY - 2009
SP - 259
EP - 265
DO - 10.5220/0001767602590265