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(image credit: http://www.theoffside.com) Motion capture Motion capture is the process of using the motions, actions and sometimes expressions of a human actor and animating a computer-rendered model from those actions to move  a model exactly as the actor did. Further, camera movements and angles can be incorporated into the scene that are also used in the computer model. Motion capture is sometimes referred to as motion tracking, or mocap. In a motion capture session, the actor will don special markers and complete their performance. Motion sensors may also be applied all over the face to capture expressions, and this information is called animation data. The animation data is then placed onto a 3D model. This is referred to as 3D motion capture, whereas 2D motion capture is something different entirely. Sometimes called rotoscoping, animators trace over live action to create 2D animation. One example of this technique is the recent …