Parent motion reduces image quality

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Parent motion reduces image quality

Posted by Udo Hen on January 28, 2020 at 6:56 pm

Hi everyone,

I have a high resolution image (a tad bigger than 9000×5000) in my project (1920×1080). I have some text appearing in a track above the image. I want to zoom in on a certain part of the image and have the text match the zooming motion so it goes out of screen. So basically, I want to zoom in on multiple tracks.

I’ve tried 2 methods:

1) Using pan/crop.
Pro: Image quality stays perfect.
Con: the text stays right in the screen, while it should sync with the zooming motion and therefore move outside the screen. Is it possible to sync the motion of two tracks or objects?

2) I make the image track a child of the text track (so the text is the parent). Then I apply a parent motion to the text track and zoom in on the part of the image.
Pro: both tracks follow the zoom I am looking for (so the text goes out of screen after I while when I zoom in).
Con: the quality of the image is much lower. I think the max image resolution is reduced to the project size, as is mentioned in this thread by John Rofrano
on Oct 4, 2009 at 6:33:37 pm: https://forums.creativecow.net/docs/forums/post.php?forumid=24&postid=900023&pview=t

So does anyone have a suggestion of what I can do to zoom in on multiple tracks while keeping my image quality high?
Hopefully my explanation and question are clear. If not, please let me know! Thank you.

Cheers, Udo

Edward Troxel replied 6 years, 4 months ago 4 Members · 5 Replies
5 Replies

Pete Baratta
January 29, 2020 at 9:57 am

Hi Udo,

Never worked with that high res but you might try rendering out the text/image first, bringing it
back into your project and then zooming with pan/crop.

Pete.
Dimitrios Papadimitriou
January 30, 2020 at 5:12 pm

If the cause is indeed the image resolution like the other guy said, or take a screen shot of the image in the state it’s going to be used in and use that instead. Have you tried rendering everything yet? May the quality drop is only in the preview window but not the final.
Udo Hen
February 1, 2020 at 8:49 am

Thank you for your help Pete. I was thinking to use that as a work around indeed ☺
Udo Hen
February 1, 2020 at 8:53 am

Thanks Dimitrios for your suggestion. Yes, I tried rendering it and the image in the video is pixelated.
The problem with a screenshot of the zoomed in state, is that the zoomed out state will be blurry.

I think I just go for the work around, which is rendering that image with text on a high resolution, load the rendered clip into the project, then zoom in on it.
Edward Troxel
February 13, 2020 at 4:31 pm

Pan/Crop will use the full resolution of the image as you zoom in.

Track Motion will zoom in on the VIDEO FRAME – so you will lose resolution because you’re zooming in on a much smaller resolution.

If you need to zoom in, Pan/Crop is the option you need to use.

Edward Troxel

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