This tutorials covers how to create a more advanced type of facial rig, showing you how to use the “stretch to” constraint to give the face a more fluid way of animating. The “stretch to” is great for things like lips and eyelids (which is shown in this tutorial); in addition, I show you how to make the eyelids “stick” to the eyeball surface, so there’s no unwanted gap between the two while animating.

Rigging the face can be as difficult and as time-consuming as rigging an entire body. In this demonstration, Paul Caggegi takes two techniques – bone and lattice deformations – to produce a very flexible and versatile rig for a character’s face.

Here’s a good videotutorial by the Process Diary that’ll explain many rigging concepts. If you’re an absolute rigging beginner, I recommend you read up on a few tutorials first.