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TIme to Pull a Key?
My final product is going to be 1920X1080 24p 8-bit uncompressed. I’m filming all my green screen shots in DVCPRO HD 1080 24pA (1280X1080), with the advanced pull-down to 23.98p on import. Would it be better for me to pull my key in the DVCPRO HD codec, edit in DVCPRO HD, and then convert the final file to uncompressed? Or should I convert the footage right after import to uncompressed and pull a key uncompressed? Any idea which would yield a cleaner key? I’ll be pulling the key in After Effects using keylight. Going to After Effects also brings up the next issue, YUV to RGB. When should I convert this? Thanks for any help in advance.
gedits
HVX200, Mac G5 4×2.5 Ghz. 4gig RAM, Final Cut Pro HD, After Effects 7 Pro, fingers crossed
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3 Replies
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Thanks. So, I should pretty much just import my footage, place it in a DVCPRO HD/RGB sequence, render it, and export it as a not self contained reference movie? Will After Effects recognize the YUV to RGB change in the reference movie? I didn’t know about this Automatic Duck software, it appears to make things a lot easier. Thanks again.
“I look forward to the day I’m keying with a 2/3 chip camera”
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I see. Do you know if the DVCPRO HD codec is natively YUV or RGB? I’m guessing YUV, because if I pull the captured clip directly into AE I need to expand the 601 luminance to make the footage appear correct. If it is YUV, at which step do I make it RGB? Thanks again.
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I have been starting to see zebra lines in highlights as I walk down the street. Next will be an iris control knob on my temple. That aside, the one time I ran into an RGB/YUV issue, was when I did some garbage matte compositing in FCP using some effected AE footage. I could see a color difference between the two matching backgrounds. I’ll keep the compositing jobs in After Effects and try not to mess with the RGB/YUV to much. Thanks.
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