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Bullseye Target Won’t Lie Flat On Ground After ANY 3D Simple 3D Camera Track?
Hi, Everyone.
I am not a major user of After Effects, but have successfully used the 3D Camera tracker to solve certain VFX shots for my job in editorial.
I have been having a problem with the 3D Camera tracker lately that I just can’t figure out. I, AE version 23, I will do a track, and it seems very straight forward, and there appears to be dozens and dozens of track points that stick to the ground plane of the shot, but I just can’t get the bullseye target to lay flat as it should, so that I can select the ground plane of the shot. The bullseye seems to want to be in every direction BUT flat on the floor. Has anyone else experienced this? I don’t if I have some weird setting turned on, but I have created new projects on three different computer and I keep having the same issue, and it has happened on about 3 different shots so far.
I am trying to do a 3D camera projection to eliminate some crew on the ground in a drone flyover, in this case, so really need to be able to select the ground plane to lay down a flat surface to project onto. Any help would be a appreciated. Thanks!
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3 Replies
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Drones tend to have wide angle lenses that can kind of mess with the camera tracker. You might try removing the lens distortion before tracking.
If you happen to have Red Giant’s VFX Suite, the Lens Distortion Matcher effect can not only do that for you, but, it can also re-distort whatever effects you’re adding to the shot to match the original lens distortion! I use it all the time whenever I’m tracking shots made with wide-angle lenses to get better tracks.
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Thanks, Michael. That does make sense. Unfortunately I don’t have any plugins budget, so hopefully there is a way to remove lens distortion inside AE itself.
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If it’s just a one-off, you can subscribe to RG for just a month which is really cheap for such a powerful collection of tools (while you’ve got it – might as well use Magic Bullet Looks to juice up your project too).
But, if not, you can try it manually with the Optics Compensation tool in AE or even more manually with Mesh Warp.
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