3d Camera Tracking After Effects

Camera

Hi !I have a question regarding camera tracking in After Effects. I tracked this scene/shot before and it worked fine, but I might have pressed a button that turned off the ability to select tracking points/hovering over them doesn't give me a target/bullseye either. (I am still able to view all the track points, just can't interact with it!) I tried it in a different project and it works fine, but each time i reopen my project the same thing keeps happening even after I retrack and solve it again.Any tips? Let me know if my problem is understandable! Appreciate the help, thanks.

Hi !I have a question regarding camera tracking in After Effects. I tracked this scene/shot before and it worked fine, but I might have pressed a button that turned off the ability to select tracking points/hovering over them doesn't give me a target/bullseye either. (I am still able to view all the track points, just can't interact with it!) I tried it in a different project and it works fine, but each time i reopen my project the same thing keeps happening even after I retrack and solve it again.Any tips? Let me know if my problem is understandable!

Appreciate the help, thanks.

That looks like screen capture from a game or a render from a 3D app. There is also almost nothing to track in the first few seconds when the camera pulls back from the thing on the wall.

Just a little heads up on Screen cap, game footage and 3D renders. They are difficult if not impossible to camera track.

3d Camera

If you can get anything from the track without enabling detailed analysis that would be a miracle from that footage.The crash could also be caused because the footage is an MP4. Highly compressed mpeg footage doesn't have every frame so the CPU has to decode the in-between frames and make them up by guessing where the pixels move. All of that work, and especially if there are any errors in the file could easily crash AE. You may have better luck adding the MP4 to the Adobe Media Encoder and rendering an image sequence and then use that footage from a track.Even if you solve the crashing problem you may not be able to get a usable track from that footage because from a little before here:to herethere's not much to track. Solving the camera depends on the shot.

Many shots will not solve because there is not enough fixed geometry in the shot to be used to extrapolate date. Not too long ago someone sent me a shot of a jet ski rider surfing that was taken from another jet ski that they could not camera track. The only fixed geometry in the entire shot was the jet ski, but that was moving so there is nothing to analyze. The shot is always a fail and you have to use other techniques to do a composite.If you are going to do camera tracking you have to plan hour shot in advance and make sure you set things up so you get enough information in the frame that you can use to solve for the camera move.Show is the shot and we can tell you if it is going to work. The more experience you gain the better you will be at solving these kinds of problems.

Camera

That looks like screen capture from a game or a render from a 3D app. There is also almost nothing to track in the first few seconds when the camera pulls back from the thing on the wall.

After effects 3d tracker

Just a little heads up on Screen cap, game footage and 3D renders. They are difficult if not impossible to camera track. If you can get anything from the track without enabling detailed analysis that would be a miracle from that footage.The crash could also be caused because the footage is an MP4. Highly compressed mpeg footage doesn't have every frame so the CPU has to decode the in-between frames and make them up by guessing where the pixels move.

All of that work, and especially if there are any errors in the file could easily crash AE. You may have better luck adding the MP4 to the Adobe Media Encoder and rendering an image sequence and then use that footage from a track.Even if you solve the crashing problem you may not be able to get a usable track from that footage because from a little before here:to herethere's not much to track.

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