The Institute of Animation has released its Facial Animation Toolset v1.2 for Maya for free. The toolset includes:
The Adaptable Facial Setup is capable of driving any humanoid geometry, drawing from an extensive, FACS-based library of facial movement components.
The process of fitting the head skeleton to the individual geometry is simplified by offering a standard set of skin weights that accomodates the typical deformation regions of the face. Any skin weights may be cloned topology-independent from one head to another utilizing the Geometry Matching Tool.
The Corrective Blendshape Manager offers a useful way to add subtledeformations to a skinned mesh. Blendshape targets can be created andedited, and are computed with respect to the bind pose of the skinned mesh.
Hit their website for the necessary links.
via Research and Development at the Institute of Animation: Animation Tools.
