Friday, September 28, 2012

From Guitar Legend to Guitar Hero

Recently, we started looking into motion tracking and that reminded me of a video I watched in high school. The video (see below) contains the behind the scenes work for the 2007 Guitar Hero game Guitar Hero III: Legends of Rock that was out for PlayStation 2&3, Wii, Xbox 360, Windows, and Mac OS X. The video features Tom Morello, American guitarist best known for his work with the bands Rage Against the Machine, Audioslave, and his solo project The Nightwatchmen, and the process that went behind putting him into the game for players to play as or battle against musically, known as Motion Capture.

Motion Capture is the process of recording the movement of a person or an object and is used in many different fields including the military, medical applications, and entertainment. Once the motions are recorded, they are used to animate digital character models in 2D or 3D computer animation. You may be asking yourself, "Cody, does this mean that motion capture is the same as motion tracking?" Well motion capture, with the use of many cameras, helps track the XYZ coordinates of a joints movement while motion tracking is more about determining how a single camera moves while filming live action so that 3D images could be rendered from the exact camera angles and distances. So the answer is no, but they are very similar and a lot of software can be used for both although motion capture is more expensive to do.

Anyways, rock on!

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