I'm interested in being able to create realistic faces and facial expressions for the 3D characters of a game I'm working on. Think something similar to the dialog scenes in games like Mass Effect.
Unfortunately I'm not sure where to begin. I'm sure the faces/animations are created through 3D Modeling software, but otherwise I am lost.
Do facial animations use the same "bones" that normal body animation uses?
Is there any preferred 3D software for realistic faces and animations? Is there a preferred format to export these faces and animations in?