It may not be readily apparent, but for the last several versions After Effects has shipped with a 3rd party tracking tool called
Mocha is a really nice tracking tool, but when you first open the app the interface can be a bit intimidating in that it looks nothing like what you’re used to if you’re used to After Effects.
Mocha is not a 3d camera tracker, but instead it’s strength is a method of 2.5d tracking known as
Here are some samples I worked up yesterday while studying how to use Mocha AE. In these examples I took some handheld HD footage of a picture frame and comped in a photo of my good friend Indiana Jones. Before shooting the source footage, I removed the actual photo from the frame and inserted a piece of black paper. This way, once I track the footage and add in the new photo, I can set the transfer mode of the photo to screen thus preserving the original reflections in the glass. This subtle effect goes a long way in increasing the realism of the comp.
At the start of each example you will see a few seconds of the original source footage, then a wipe to reveal the final comp.
About the Author
Steve Smart is a motion graphics artist and video producer based in Nashville.
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