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It wold really help us point you in the right direction if we could see the shot you are having problems with. This is by far the most efficient way to work. In the past I have cut one shot up into seven or eight segments and camera tracked each segment separately, then put the shot back together. The window was inly in the shot for 4 seconds but the sign I needed to replace was only in the shot for about 3 seconds so I trimmed the shot to the just over 3 seconds, ran camera tracker, replaced the sign in my just over 3 second comp, rendered the composite, then cut the composite into the original shot. I had to replace a sign in a window they walked past with a new graphic. For example I recently had a shot of a couple of actors walking down the street talking that ran for about 20 seconds. You should trim your shot to just the frames you need to actually track. A shot of a wheat field with the wheat blowing in the wind or a shot if the ocean is impossible to Camera Track because there is nothing but a horizon that is not moving.Īnother really common problem is trying to camera track a shot that is too long or makes some unexpected changes in direction. A hand held shot of a bunch of people walking down the sidewalk is extremely difficult to track because there is not enough fixed geometry in the shot to establish and calculate changes in parallax. The other common problem is that there are too many things that are moving in different directions in the shot. This is a common problem with wide angle lenses even on professional cameras. To successfully use AE's camera tracker you must have very little lens distortion in the shot. Video clip is drone footage looking down on a piece of land Can anyone shed some light on this subject, please? Why the inconsistent results? That being said, I've also tried changing the 3D Renderer in Composition settings. These mixed results happen with no other settings being changed. Other times, it works and the text moves as if "stuck" to the video. However, when I right click to create text, most of the time the text simply stays in place instead of moving as if "stuck" to the video. The camera tracker will create the tracking points and I use the target to choose at least 3 tracking points (though I've toyed with different numbers of tracking points chosen).

But, again, most of the time it doesn't work. The only way it'll work at all is to put the clip in a new comp. I'm having a devil of a time getting the 3D Camera Tracker to work consistently in After Effects CC 2017.