my 3D camera traker is not working in after effects

Hi there, thanks for reaching out.

Just to confirm, by "3D animation" do you mean the 3D Camera Tracker?

If yes, a few things worth trying:

1. Let it run longer. On longer or higher-resolution footage, the "initializing" phase can take several minutes even on fast machines.

2. Update your GPU driver from the manufacturer's site.

3. Clear the media cache. Edit > Purge > All Memory & Disk Cache.

4. Test with a short clip. Try applying the tracker to a brand new 5–10 second clip in a fresh composition. If that works, the issue could be with your original footage.

5. Try Safe Mode with third-party plug-ins disabled: https://adobe.ly/4ypsAPO

A few details that would help:

- Your exact AE version (Help > About) and OS.

- The format, resolution, and duration of the footage you're trying to track.

- Your GPU and CPU specs.

Let me know what happens.

Thanks,

Nishu