• Adobe After Effects

  3D Tracking Question – Turning off and on

  Posted by Hooban Meyer on March 26, 2014 at 12:23 am

  Hi, I’m using the After Effects CC 3D tracker to place a 2D object in a dolly shot. I’ve been able to successfully track the shot, create a null and camera, and put my object in the world. It works well.

  The trick is, I need the 2D object to eventually disconnect from the 3D track and float away independently. Does anyone know a good method of smoothly making this transition? If I split the clip and turn off the 3D for the second half, the 2D object resizes and positions to it’s non-3D settings.

  So to reword it, halfway through the clip I need to be able to preserve the size, tilt, rotation, and position, but have my 2D object break free of its 3D-tracked motion background.

  I’m sure there’s a simple way of doing this, but can’t find anything out there.

  Thanks for your help.

  Roland R. kahlenberg replied 12 years, 1 month ago 2 Members · 1 Reply
• 1 Reply

• 

  Roland R. kahlenberg

  March 26, 2014 at 3:31 am

  All you need to do is to animate the transform properties of the object, as a 3D layer.

  FWIW, all tracking related keyframes are contained within AE’s Camera. IOW, your inserted object does not contain any keyframes.

  HTH
  RoRK
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