ARKit to FACS: Blendshape Cheat Sheet
If you or your team are using open-source face tracking kits, figuring out what’s what can be challenging. Navigate the ambiguity with the FACS Translation Sheet!
animation
Lip Tightener vs. Lip Presser
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Animation Tips For Smiles
Nailing the right “smiling eye” look in your characters can be challenging – unless you know how the orbicularis oculi muscle works.
All About Upper Lid Raiser – AU5
In FACS, upper lid raiser, or AU5, is the action that raises and retracts the upper eyelid; this movement causes the eyes to appear wider and reveal more sclera (the white part of eye). The appearance changes we see in upper lid raiser are the result of an increase in contraction of levator palpebrae superioris, an extraocular muscle that works to keep the upper eyelid elevated.