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Chugging because of comp size
Hey CC’ers,
Not sure why it’s happening, but it is. I’ve got an animation rendered out @ 1280×720 @ 29.97 fps. The client has asked me to give them a final render size of 1280×864 (they obviously didn’t tell me this before rendering) – When I do anything with the file in AE in the original size, it plays perfectly and smooth. But as soon as I create a comp that is the 864 size, a slight chugging starts to happen. It just doesn’t play as smoothly as it does when it’s in a comp that 1280×720.
Same frame rate, same files etc, the only thing that changes is the comp size.
Any ideas? It’s really driving me nuts because it makes the animation look amateur.
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7 Replies
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Can you provide a little more information? How are you playing it when you see the chugging?
Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive | RenderBreak [blog] | Profile [LinkedIn] -
Hi Walter,
It happens in ram preview AND final rendered files. It doesn’t matter what format I output to, it still happens. Uncompressed MOVs, mp4, AVI etc. -
Are you talking about judder?
https://kb2.adobe.com/community/publishing/908/cpsid_90843.html
Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive | RenderBreak [blog] | Profile [LinkedIn] -
I don’t believe that’s the issue. I had already read up on judder thinking that’s what it was, but as I said, it plays absolutely perfect with the original tga’s through a viewer/player OR when I ram preview/output them to movie format in the original 1820×720.
It’s ONLY when I take the 720 size footage and put it into an 864 comp that it starts to play back rough.
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[scott saari] “It’s ONLY when I take the 720 size footage and put it into an 864 comp that it starts to play back rough.”
Can you walk me through how precisely you are doing this? Or maybe post a couple screenshots or a sample of the “chugging” video?
If you are scaling the footage, then you are “magnifying” the moves and judder may in fact be the culprit.
Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive | RenderBreak [blog] | Profile [LinkedIn] -
I’ll get some video to show, but just so I’m clear, I’m not scaling the video the fit in the larger comp size. I’m placing the 1280×720 into the 1280×864 and the. Fake letter boxing it.
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So if I understand right, you’re rendering a lossless file out of AE, then importing that file back into AE and dropping it in a taller comp to add letterbox? Why don’t you just run the lossless file through Media Encoder and add the extra 144 pixels to the Y? Or through an NLE?
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