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re-interlacing issue

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xavier loebl
re-interlacing issue
on Aug 16, 2011 at 10:16:53 am

Hi folks !
I'm getting sort of a brain-lock here....
I have a couple of 1080p movies that need being converted to 1080i.
I followed the steps detailed here

http://magazine.creativecow.net/article/interlacing-progressive-footage

so I have my 25fps footage with doubled frames, conform it to 50fps, import it to a 50fps comp and make a 25fps upper frame first render....

but then I have a weird result, my output footage is progressive all the way to the middle of the file and then I get the interlace effect I'm after....

This is driving me f*****g MAD :/


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Walter Soyka
Re: re-interlacing issue
on Aug 16, 2011 at 1:19:25 pm

[xavier loebl] "so I have my 25fps footage with doubled frames"

You don't want doubled frames -- you want motion estimation to calculate new frames in between the existing ones.

Use Time Remapping (making sure that Layer > Frame Blending > Pixel Motion on), Timewarp, or Twixtor to create a slo-mo version of your clip that runs at 50% of the speed of the original.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Dave LaRonde
Re: re-interlacing issue
on Aug 16, 2011 at 4:46:38 pm

If you wish to retain the progressive-scan look, you can also render them as they are upper-field first.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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xavier loebl
Re: re-interlacing issue
on Aug 17, 2011 at 10:27:33 am

Thanks for your advises, I knew I was missing something here.


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