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Update Motion Tracker Frame Range
Posted: 21 March 2020 10:41 AM   [ Ignore ]  
Total Posts:  292
Joined  2017-09-24

Hi,

Is it possible to update motion tracker frame range?

1) For instance, I have a frame range of 0-10 in an image sequence.
2) Motion tracked done.
3) But the frame range increases to 0-15.
4) Whenever I tried to reimport the same sequence but now extended, it is still in 11 frames
It should already be 16 frames.
5) I tried manually changing the Frame Stop to 15 but it snaps back to 10.

Is there a way around this?

Regards,
Ben

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Posted: 21 March 2020 03:41 PM   [ Ignore ]   [ # 1 ]  
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Hi Ben,

Short answer, not to my knowledge.

As I mentioned before, just adding a few frames might change the evaluation of the tracker quality. Since new data is available, the calculation of the previous might change. With that, the tracker used to set up orientation, size, and position, might not be useable anymore.

I have tried to recreate your set up. Copied the frames in a new folder and only a limited range, here with an image-sequence. The frames were labeled: name_sequencenumber_dot_suffix
The tracker recognized the numbers and set the range. Since the tracker has set this range, there is no given option to change that.

At the moment I added images to that folder, they are not recognized.

If I reload the footage, it deletes the solve. I assume for varies reasons.

If the footage is either based on a single file or as a sequence, but containing all frames, then the frame settings (Start/Stop) would have limited the number of frames (if adjusted), and it would have allowed to change it later on. However, it would solve the whole tracking newly, of course, and with that, the quality of the tracker might vary.

My best wishes for the project.

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Dr. Sassi V. Sassmannshausen Ph.D.
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Posted: 22 March 2020 02:19 PM   [ Ignore ]   [ # 2 ]  
Total Posts:  292
Joined  2017-09-24

RE: Short answer, not to my knowledge.
Gotcha. That’s a bummer.

Thanks for the confirmation.

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Posted: 22 March 2020 03:12 PM   [ Ignore ]   [ # 3 ]  
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Yes, Ben, it would be nice if the sequence could be expanded if more images are found in the particular folder.

The idea is undoubtedly based on that the link is pointed to the folder holding all files and then be able to limit what you really need. From there, it was always possible to expand.

But yes, as we all know, things change.

I will make a request for this.

All the best

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Dr. Sassi V. Sassmannshausen Ph.D.
Cinema 4D Mentor since 2004
Maxon Master Trainer, VES, DCS

Photography For C4D Artists: 200 Free Tutorials.
https://www.youtube.com/user/DrSassiLA/playlists

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