Replacing sign on closing door / After Effects CC

Question

Hey everyone!

I have a problem replacing a sign in AF. This is the sign i want to put in.

I used the 3d camera tracker but for some reason, I don't get the points that correspond to the plane im after. (see pictures below).

I managed to replace the sign using 3d camera tracker after the Santa Clause close the door and it looked great.

But I need to replace it from the beginning when he starts closing the door. Suggestions? Other ways of doing it?

Thank you very very much! I'm so stuck!

Rick Gerard · Accepted Answer

The Camera Tracker will not track planes that are moving in the scene. It uses fixed geometry and looks for the parallax and perspective changes to recreate a camera move. The door is moving and the frame is not so Camera Tracking is not going to work at all.

The best solution to your problem is Mocha AE corner pin tracking. You are just using the wrong tools.

There are lots of tutorials on corner pin tracking in Mocha AE. I would probably use this technique:

Simple corner pin tracing would probably do it but sometimes it's easier to work with an enlarged view like this.

Hope this helps.

RuyRamos · Answer

Thank you Rick!! That did the trick

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