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field problem on animated stills
Hi there,
I’m having a strange problem on a clients fcp system (6.0.3). When animating stills, sometimes I get a banding effect on the still – it looks like an interlacing problem, as if one of the fields is missing. This is within the software, and also sometimes, but not always, in the final renders.The problem disappears if I open the same project file on my laptop, so I think it has to be an issue with their system – not very keen to reinstall in the middle of a project though.. has anyone come across this before?
Sam
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11 Replies
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Hi sam,
Still shouldn’t have two fields.
Make sure that in the Browser (Field dominance) they show up as NONE.
rafael -
Hi Rafael,
Have just checked and it does say ‘none’ under field dominance.. any other thoughts?
many thanks, and hope all going well in Laos!
Sam.
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though have just discovered the problem goes away if I change the sequence field dominance to none..
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Sam,
Are you monitoring con computer monitors only, or do you have a real video I/O solution with a video or broadcast monitor?
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, and Indie Film & Documentary forums.
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I only have access to computer monitors here, however, I am viewing at 100% so I am seeing both fields.. at other scales where only one field is seen the image sometimes is completely black – which to me confirms my suspicion that a field is somehow getting dropped on these stills.
I have just found a possible solution – which is to change the sequence settings to prores and field dominance to none – this makes the images perfectly sharp and gets rid of the field issue – however there is also interlaced video in the sequence, so I am a little concerned I might be losing quality in the video if I take this approach. The final output will be progressive anyway – so maybe it doesn’t matter?
Sam.
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That’s great Sam if your sequence is progressive, but if not you’ve just hidden one problem that probably wasn’t really an issue, and meanwhile you’ve created a entirely new set of issues that are a major problem.
Okay, I just saw you second post. My advice is ignore the interlace you’re seeing on your computer monitor and resist the tempation to change the seq. settings to none.
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, and Indie Film & Documentary forums.
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Thanks David,
As it happens, my final output will be progressive.. But I’m still concerned about quality loss in the interlaced video parts of the sequence. I suppose I could deinterlace this footage in compressor and then I would have entirely progressive source footage in a progressive sequence, but that would take forever.. Also I’m still not clearer on what is causing this field problem on the images in the first place, given that it does not happen on my own system (6.05 on laptop)
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Hi sam,
I agree with David. Your stills shouldn’t look bad in an interlaced sequence.
Going Progressive is not the solution but a patch.
However if you go to finish progressive don’t forget to drop a good de-interlacer in your DV footage.
BTW, here in Laos every thing fine, just tooooooooo hot 🙂
Best,
rafael -
Hi Rafael and David,
Of course you are both right – setting the field order to none is only a patch – there is obviously something wrong with the software installation. However, seeing as I am going to end up progressive anyway I think it might be a patch that will see me to the end of the project.. I’ve just been reading some other posts on cow that seem to suggest that setting field order to none and using a deinterlace plugin is a valid way of deinterlacing anyway. Normally I would use frame controls in compressor – but now I’m thinking this could be the way of solving both my problems (the weird image thing and the need to deinterlace) in one go..
A coupe of final questions – David, you hinted that I might be setting myself up for other issues by changing the sequence field order – any more details as what could go wrong –Rafael, you said drop on a good deinterlacer filter, is there a free one you’d recommend? I know the fcp one has a bad reputation..
Many thanks!!
Sam
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[sam woolf] “David, you hinted that I might be setting myself up for other issues by changing the sequence field order – any more details as what could go wrong –
“As Rafael stated earlier, resolution will be lost, and if you’re going to deinterlace then you’ll be adding an additional step, which can easily have unwanted consequences by possibly screwing-up even the best deinterlace filter.
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, and Indie Film & Documentary forums.
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