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Rendering HD QuickTime files with alpha channels for Final Cut
We have been having issues with HD (1920×1080) QuickTime files with alpha channels not looking good in Final Cut. They look great both playing in AE and QuickTime player. However when we import them into Final Cut it appears as there is a field issue when we play the files back. When they are stilled they look fine… the problem only occurs when the are played back.
We have tried rendering uncompressed and animation compressed files from AE. We have also tried upper field first, lower field first and rendering them as frames and we are still getting the same problem.
Our sequence in Final cut is ProRes 422 HQ.
Does anyone have an idea what is going on.
Thanks
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3 Replies
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How are you viewing the picture? Do you have an external HD monitor?
John
MacPro 8-core 2.8GHz 8 GB RAM OS 10.5.5 QT7.5.5 Kona 3 Dual Cinema 23 ATI Radeon HD 3870
ATTO ExpressSAS R380 RAID Adapter, PDE Enclosure with 8-drive 6TB RAID 5
24″ TV-Logic Monitor
Final Cut Studio 2 (up to date)Pro Tools HD w SYNC IO, Yamaha DM1000, Millennia Media HV-3C, Neumann U87, Schoeps Mk41 mics, Genelec Monitors, PrimaLT ISDN
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[Scott David] “We have tried rendering uncompressed and animation compressed files from AE. We have also tried upper field first, lower field first and rendering them as frames and we are still getting the same problem. “
Apple 8/10b Uncompress do not support Alpha channel. You need Sheer or AVID.
With Animation it shouldn’t be no problem.
Have a look to the Browser and see if FC is interpreting properly the field order.
By default FC set it as Upper.
rafael -
John,
I have an external HD monitor hooked up to a Kona 3 card.
Scott
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