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Corner pin effect issues

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Corner pin effect issues

Postby sidd finch » Wed Jun 01, 2011 8:32 am

I am using PPro CS3 editing 1080i HDV. I place a title over the clip and use the “corner pin” effect on the title to make the text look like it is a part of the actual clip. I do not use any keyframes. I render the clip and view and everything looks great. When I export to H.264 720p the title with text becomes way out of alignment with the clip. Is there something I can do so this does not change on my outputted clip?

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Re: Corner pin effect issues

Postby momoffduty » Wed Jun 01, 2011 9:38 am

Sounds like the same problem with standard video and exporting to a compressed file. That work around was to export that segment as an uncompressed file and use that in your project. I think what happens is that during compression the frames (b & p frames that are drawn) in between the I frames get out of alignment. When it is exported as an uncompressed file it is pixel to pixel I frames for every frame.
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Re: Corner pin effect issues

Postby sidd finch » Wed Jun 01, 2011 11:37 am

Mother always knows best :)

Thank you Mom

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Re: Corner pin effect issues

Postby momoffduty » Wed Jun 01, 2011 11:41 am

sidd finch wrote:Mother always knows best :)


Can I quote you to my 21yo? :)
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Re: Corner pin effect issues

Postby sidd finch » Wed Jun 01, 2011 11:44 am

yes unless she gets better at editing videos than you ..... :)

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Re: Corner pin effect issues

Postby Bob » Wed Jun 01, 2011 12:23 pm

I tried reproducing the problem in PPro CS5 and it worked fine. Don't know if that means they fixed a bug or whether I just didn't match your setup closely enough.

You shouldn't have to export the segment and import it. What happens if you create a new sequence, embed the old sequence in it, and export the new sequence at 720P?
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Re: Corner pin effect issues

Postby sidd finch » Fri Jun 03, 2011 12:05 pm

I will try that Bob. It does seem like a bug to me. Just for kicks I tried to scale to frame then export but still an issue.

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Re: Corner pin effect issues

Postby sidd finch » Tue Jun 07, 2011 2:46 pm

just an update Tried the suggestions and looks like Mom came out the winner. I also noticed that by exporting the corner pin shots as Mom suggested then re-importing them also made my final export a whole bunch faster. Not that I like having a work around, I do think this might be a great way to enhance my workflow since the time it takes overall seems to be less.

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Re: Corner pin effect issues

Postby momoffduty » Tue Jun 07, 2011 6:17 pm

Glad you got it working Sidd and thanks for posting back your findings. This issue has come up a few times with the Basic 3D swivel too.
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Re: Corner pin effect issues

Postby sidd finch » Wed Jun 08, 2011 9:29 pm

Mom I find it to be a very odd problem. I am suprised that it has not come up too much before.

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