Chapter 18Motion Tracking and Matchmoving

Many times, you’ll need to incorporate your green screen subjects into an environment that is moving—either because of handheld camera shake or a panning/zooming camera shot; or if the environment was professionally shot in a studio, you may have to composite a dolly, jib, or crane shot as well. Obviously, unless you’re prepared to motion track your composite, it’s best to avoid this if possible when you’re planning your shots. But with modern tracking software such as Adobe After Effects and Mocha, you can accommodate these moves and, in some cases, add to the believability of the composited plates. Today, advanced hardware and software technology, motion-control rigs, software matchmoving, and tracking ...

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