The Face Viewer allows you to interactively control the facial animation of a SmartBody character. The controls that appear are based on a character's Face Definition.
The controls consist of Facial Action Units (FACS) , which control various aspects of the face, as well as visemes, which are associated with lip syncing. The visemes can be modulated by changing their associated weights (0 means the viseme will have no effect, 1 means the viseme will be in full effect).
