Weird sawtooth effect after render

[Charles227957596n9d]

As I move there is this weird sawtooth effect around the movement.

This doesn't happen in the preview it only appears upon rendering the clip.

What is this? How do I control it/ stop it? I don't hate it, it's kind of cool, but I do want to know why it's happening and how to change it/ stop it. 

Here are the clips:

https://youtu.be/ez53mfQ8HNk

https://youtu.be/pM80c7G4RY0 

Test 9 is 4:3 like how the final will be but doesn't have the 80's rgb noisy effects 

Test 11 is 16:9 but does have the 80's rgb noisy effects.

Thank you!

Charlie

[R Neil Haugen]

Data, please ... I'm not a huge fan of wild guesses ...

Original media framesize/rate, sequence framesize/rate, and full export settings. Screengrabs dropped onto the reply box are great.

Neil

[Charles227957596n9d]

Original: 3840x2160 24fps, some is also 1920x1080, 24 fps 

Sequence: The final will be 1440x1080, but I have also worked with it at 1920. all 24 fps.

I will be rendering it out at 1440x1080 for the final version but changing these settings doesn't seem to change the existance of this effect.

Thanks

[Jeff Bugbee]

Does this occur with your effects turned off/disabled?

[Charles227957596n9d]

Yes, I just exported a different clip from the project that has no effects and it still happens. 

Thank you again!

[basil1891]

It looks like exported clip is interlaced .. Can you analyze it in MediaInfo tool and share report here (use text view)?

[Charles227957596n9d]

Thank you!

 

[Charles227957596n9d · Accepted solution]

It seems like changing the fields section in the sequence settings from lower fields first, to no fields has fixed the interlacing. Also thank you because I didn't know the word! What does this change do/ mean?

Thank you!

Charlie

[Charles227957596n9d]

Also why would this setting change appear only in the rendered version and not the preview?

[Jeff Bugbee]

https://www.synopi.com/interlaced-and-progressive-video

Progressive = no fields

[Charles227957596n9d]

Got it! Thank you! 

[Andy 1968]

I seen some interlacing artifacts. If you are posting to social media placing interlaced SD video clips into a 60P timeline might be your best bet. That is what I do. 

[R Neil Haugen]

What happens if you kick your bitates up to say Target 30/Max 50?

Neil

[Charles227957596n9d]

Still happens.

Thanks,

Charlie

[Andy 1968]

It is not the bit rate. I myself prefer to drop interlaced video into a 60P seqeunce if I am posting to social media. If the end result is for DVD or Blu-ray then an interlaced sequence would work just fine.