The Face Rig

The Face Rig allows custom Face Expressions to be edited and saved as PAGER Tag presets. These Tag Presets are executed when SILVIA triggers an Exuder. Jaw movement is approximated by analyzing the speech audio signal in the VisemeController component. The Face Expression uses the same bone chains and editing system but stores the saved result to the Face Expressions Library. Face Expressions and Viseme Shapes are used simultaneously with the bone chain rotations for the mouth and jaw bone chains of the Viseme Shape overriding the Face Expression bone rotations. This allows for example the eyes to look around or the eyebrows expressing surprise or scowling while the Visemes, driven by the TTS phoneme ‘speaks’, delivering nuance and variation to the face.