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“Motion stutter” – can it be fixed inside FCP?
Hi there.
I’m currently dealing with a project that was created using a series of “camera moves” inside Maya, and mastered in After Effects. Essentially, the project came to me as one finished QT file, that we then ran through Final Cut for some quick color corrections, then through Compressor and DVDSP for a master DVD.
When playing the disc, however, some areas exhibit a “stutter” during lateral movements in the animations (especially the faster moves). I expressed to the client that the reason behind this could be:
1. We’re showing a progressive scan DVD on an interlaced screen via a connection that does not allow for progressive scan connection (DVD player is not progressive scan). In essence, fields are being added to the image, creating this occasional stutter.
2. There may be something that can be changed inside Maya or AE that will minimize this stutter. Adding fields or 3:2 pulldown perhaps? This part, however, I am unsure of, and wonder if it’s out off my hands.
I personally feel that it’s best to leave it as a progressive scan image and try to only play it back on better screens and DVD players. But the client is insisting that the stutter be removed or minimized. As their Online Editor and DVD Author, is there anything I can do? Can anything be done inside FCP?
(The reason I posted here is because I’m not quite sure where else to add this post)
Thx
Aaron H. -
7 Replies
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What resolution and frame rate are you working in? Please give more details.
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standard def (720×486), no fields, 29.97
“Be the dream, NOT the dreamer!”
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[Aaron D Hose] “standard def (720×486), no fields, 29.97”
was this how it was rendered out of Maya?
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No….1080×729, 40:27 pixel aspect, no fields, 30fps. I resized everything later.
“Be the dream, NOT the dreamer!”
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Progressive is progressive. If you want to interlace it, try fields kit reinterlacer from revision fx.
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Can you tell whether it’s the Maya footage or the elements added in AE that are at fault?
I’d say re-rendering fielded video from Maya or AE (both if you can’t specify only one is the issue) would be your best bet, but obviously the most time intensive.
I’m not familiar with any interlace-adding software and although I’d be happy to be proven wrong I can’t imagine after-the-fact interlacing will match the quality of recreating the original source footage.
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Video Photographer / Avid Editor / Final Cut Neophyte -
If you don’t have those 60 positions per second from the start, no re-interlacer will be able to help you. You’d rather add some motion-blur in Maya,re-render interlaced (Maya can do that) or, if that’s extremely time-consuming, use Twixtor to generate extra positions in AE and re-interlace after that. But this can be pretty slow too…
Regards,
Uli
Director of the Institute of Media Research (IMF) at Braunschweig University of Arts
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