Blendforces, a Dynamic Framework for Facial Animation

Blendforces representative image

Computer Graphics Forum (Proceedings of Eurographics 2016).


Vincent Barrielle (CentraleSupélec, Dynamixyz)

Nicolas Stoiber (Dynamixyz)

CĂ©dric Cagniart


In this paper we present a new paradigm for the generation and retargeting of facial animation. Like a vast majority of the approaches that have adressed these topics, our formalism is built on blendshapes. However, where prior works have generally encoded facial geometry using a low dimensional basis of these blendshapes, we propose to encode facial dynamics by looking at blendshapes as a basis of forces rather than a basis of shapes. We develop this idea into a dynamic model that naturally combines the blendshapes paradigm with physics-based techniques for the simulation of deforming meshes. Because it escapes the linear span of the shape basis through time-integration and physics-inspired simulation, this approach has a wider expressive range than previous blendshape-based methods. Its inherent physically-based formulation also enables the simulation of more advanced physical interactions, such as collision responses on lip contacts.


  author = {Barrielle, Vincent and Stoiber, Nicolas and Cagniart, C\'edric},
  title = { BlendForces: a Dynamic Framework for Facial animation},
  journal = {Computer Graphics Forum (Proceedings of Eurographics 2016)},
  volume = {35},
  number = {2},
  year = {2016},
  publisher = {The Eurographics Association and John Wiley & Sons Ltd.},
  ISSN = {1467-8659},
  DOI = {10.1111/cgf.12836},


paper (21 MB)

Paper (21 MB)

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