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Re: AE CS6 3D camera tracker will not track distant objects

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Roland R. Kahlenberg
Re: AE CS6 3D camera tracker will not track distant objects
on Jan 10, 2013 at 4:24:47 am

My results are more on the positive -


BTW, you can use mocha's planar tracking to get very good results even without the camera solve. If you want a camera solve, then mocha's camera solve seems to work better with these type of shots.

I would also like to add that placing solids into the scene with only transform data will not help but may actually confuse 3D trackers as the solid's reference/track points will not exhibit perspective changes, which are there for the other inherent points in the footage. Further, a short shot may not necessarily be a better choice to test a camera solve as the short duration may not provide sufficient parallax/clues to the tracking algorithm.

TIP #1 - once you've completed your track, you can switch off the visibility of the tracking footage in the timeline. if you select the effect either in the effects control panel or the timeline, you will be able to view the tracked points on a black background (provided you have no other layers in the timeline and your comp background is set to black. this procedure allows to have a better view of the tracked points as well as to scrub the timeline to look for bad points; defined by their short lifespan. you can delete these points and the 3D cam tracker will initiate another solve based on the left-over points.

TIP # 2 - once you have a target onscreen, you can click on the triangle within it to lock the target in place. then move your cursor towards the center of the target until your cursor has a four-sided arrow at its bottom right. you can then click at the center of the circle and drag the target to a new location, within the same plane. This allows you to offset the location of your insert layer so that you are not confined to placing your insert at the location of the target points or the center of the target.

TIP # 3 - you can download a demo of mochaPro V3 to test its camera solve routine. I think they work better for such shots.

HTH
RoRK

Intensive mocha & AE Training in Singapore and Other Dangerous Locations

Imagineer Systems (mocha) Certified Instructor
& Adobe After Effects ACE/ACI (version 7)


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