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Graphics Studder in 23.98
I am beginning an online of a sequence that was given to me in 720p23.98. All the footage looks fine but the graphics have a shuddering issue on movements. The files are animation codec to preserve the alpha channel and are at 23.98fps. When I play them through QT they look fine and all the motions are smooth. When I import them into FCP, the motion becomes studdery and when I advance frame by frame, there are frames with no movement in the graphic while there is with the underlying video.
The specs of the sequence are: DVCProHD 720p60 23.98.
Can anyone come up with an explanation for why this might be happening?
Thanks,
Mike -
6 Replies
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are you viewing this on an external monitor?
have you rendered the timeline?
these can all affect it. judge only what the external monitor shows.
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Yes I am viewing this on an external plasma. Within FCP and QT all the movement looks fine.
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Where your graphics created at 23.976 or 23.98? Final Cut abbreviates 23.978 as 23.98 even though it really is playing back at 23.976. After Effects, however, is framerate independent and can create graphics at anyframe, including 23.98 which is not 23.976.
I had this problem as a result of our graphics house delivering us stuff at 23.98. If that’s the case, have them remake them. If time is of the essence and you have to layback right now, you can try bringing the graphic into FCP in the viewer. Then with the viewer selected, export the file back out (since using the same codec you shouldn’t introduce any quality hits). Then reimport that file. It worked for me, but as I said if that is case, the graphics house should remake the stuff.
Richard Sanchez
North Hollywood, CA“We are the facilitators of our own creative evolution.” – Bill Hicks
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I just went through this, if your working in a 29.97 timeline then the graphics need to be also 29.97.\
Paul
Paul Harb-Producer/Director
Wrong Beach Multimedia
Dual 3.2 GHz Quad/10.5.5/8GIG RAM/FCP 6.0.4/QT 7.5.5 -
[Richard Sanchez] “I had this problem as a result of our graphics house delivering us stuff at 23.98. If that’s the case, have them remake them. If time is of the essence and you have to layback right now, you can try bringing the graphic into FCP in the viewer. Then with the viewer selected, export the file back out (since using the same codec you shouldn’t introduce any quality hits). Then reimport that file. It worked for me, but as I said if that is case, the graphics house should remake the stuff.”
The easiest and fastest way to do this is to simply open the actual 23.98 clips in Cinema Tools.
Once in Cinema Tools, click the conform button and choose 23.98 (which in reality conforms to 23.976). It sounds confusing and Apple’s shorthand can really trip people up, but it does work.
This will allow realtime playback without stutter or recompression, without rerendering from the graphics dept., and without changing or adding media. In FCP, the clips will reconnect themselves @ 23.976 as long as you have that ‘always reconnect’ option checked in your FCP prefs.
Paul, in your case, you needed to rerender out of AE with 3:2 pulldown. That way your graphics will match the motion fo your video on a 29.97 timeline.
Jeremy
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Hey Mike,
Funny running into you on the internet! We overlapped at Sirens in case you don’t remember.
Anyways did any of these solutions ever work for you? I’ve taken a look at the suggestions and non of them solve my problem so I’m hoping you might have found the answer outside of the forum.
I’m running into a similar jittering issue trying to make a smooth credit roll in after effects for a DVCProHD 720p60 23.976 show and can’t make them smooth for the life of me. After talking with AJA my understanding is that the issue is 720p23.976 is an acquisition only format so final cut can’t actually play it back. It’s really playing back 720p59.94.
Is any of this similar to what you encountered? I know this was 5 years ago but I’m about out of ideas at this point.
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