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Black bckgrnd on Alpha 4444+ FCP export
Hi there —
Desperately trying to export an FCP 7 comp where I need the initial and last frames to be transparent (to encode in FLV Alpha with Adobe Encoder).
I tried pretty much everything I could think of, and all tricks I aw mentioned here and there, to no avail.
Exporting from Quicktime compression, Alpha 4444 million, from v2 (tried v1 too), both rendered and unrendered, still getting a black background even when reimporting in FCP and checking against a white background (so I’m obviously getting the black background in Encoder too).
I initially thought this was due to the fact that I use Perspective Reflection plugin on those tracks (never could export these with reflection on a transparent background, BTW). So I added a one second color clip before the video clip, with a fade in (transition) from nothing to color, then crossfade to clip with Perspective Reflection; still no luck). I only need the first and last frames to be transparent…
Also, Alpha column is set to Plain in the browser for those files.
Appreciate any help. TIA.
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9 Replies
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[Ignatius Gorin] “Exporting from Quicktime compression, Alpha 4444 million”
You need Millions+.
rafael -
Yes, what I meant, sorry. Million+.
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“Alpha column is set to Plain in the browser for those files.”
Where are you getting “Plain Alpha”?
FCP options aret:
– None/Ignore
– Strait
– White
– Black
rafael -
It’s set to simple (sorry I translated from the French).
THanks for your help, as I’m stuck…
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Erm… sorry, it’s set to STRAIGHT…
Still stuck, pulling my hair on this…
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Hi Ignatius,
I’ve heard often complains from people having problems to export movies with alpha even when apparently they have all the sequence parameters OK.
Make a simple test:
– Open a new sequence (whatever the settings), and change the codec for Prores444/Colors+.
– Open the basic Text tool in the Viewer (you get “Sample Text on it) and drag it to the time-line (V1).
– Export (QT current setting) and then re-import to FC. See how it works the Alpha channel when you lie it on top of any picture on any sequence.
rafael -
THanks for your help Rafael —
Here it DOES work. What can I try next ? Convert my own sequence to 4444+ before exporting? (Can’t try that right now, but I will later if you say that’s the way to go).
THANKS.
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Yes.
Set your sequence codec to Prores 444 Millions+.
In the sequence setting, set also “Render all YUV material in High Precision”.
rafael -
YES! That worked. Thanks a million, that really saved me.
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