[Dave Horwell] "If I've used the camera track how can I bring in an object and 'fix' it to one the the after effects created tracking points ?"
Once you've tracked the footage, with the layer selected in the timeline panel and the 3D Camera Tracker effect selected in the Effects Controls panel, hover the mouse around the comp viewer and locate a point at or near the spot you want to stick your object to. Right-click (or control-click) and choose Create Null and Camera.
With the new moving camera, all 3D layers will track now.
Copy the position from the null and paste it on whatever other 3D layer you like to get it roughly positioned in 3D space. Tweak its orientation and position as necessary to fine-tune the location.
Walter Soyka
Principal & Designer at
Keen Live
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