After Effects CS6 introduces a powerful 3D camera tracker. In this video tutorial you'll see it in action and learn how to use it in your own AE projects.
[Daniel Fischer] 'The file itself is shot at 25fps 1080p with a Canon DSLR so it is a.MOV using the H.264 codec if I'm not mistaken, and the clip itself is only about 3 minutes long' 3 minutes is a very long time to track anything. Do you really need to track something that long?
There are hefty memory requirements for both the Warp Stabilzier and 3D Camera Tracker. Here's a link that spells it out - I suggest that you both look at reducing the duration of your required tracks. If that is somehow not possible then here's a workaround - 1) create a smaller, lower version of your clip - ie if you are starting off with a 1920x1080 clip, then create a smaller version, say 640x360 (ensure that the screen and pixel aspect ratios are identical for both the original and the low res duplicate). 2) import the lower rez movie and apply 3D Camera Tracker to that.
Insert all the objects that you want into this scene. 3) When you are done, go to the Project Panel and duplicate this comp. With the duplicate selected in the Project Panel, goto File>Scripts>Scale Composition.jsx. 4) In the dialog box, enter 1920 into the New Width text entry box and hit the Scale button. Very quickly, the comp will be scaled.
CLose the dialog panel and open the new comp. Your objects, Nulls, Text, Solids etc will be in the scene as they were in the lower rez comp. Your camera will have been adjusted to work with the higher rez comp.
Now all you need to do is to drop in the high rez, original footage into this comp and switch off the visibility of the low rez layer. There are disadvantages to this workaround for object removal and more tricky stuff such as camera projections but as long as your clip isn't very long, which should be the case most of the time, you should be able to enjoy the benefits of the 3D Camera Tracker.
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