Facial Rigging and Animation in 3D: From a videogame perspective

What are some of the methods for rigging and animating a face in 3D and which method is preferable when and under which circumstances?

In this report I will examine a few of the different methods available when rigging and animating a face in 3D. I will be working mainly with Autodesk 3D Studio Max so some knowledge with it is preferable to fully understand the process.

At the end of the report I will look at the positive as well as negative aspects of each method as well as which method is preferable in what kind of production or with which assets.
Source: Gotland University
Author: Hjelm, John