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Rendering with Alfa Channel in Pre Pro?
I am able in AE to render a file with alfa channel to Cineform AVI and it works – when I render the same set up in Pre Pro I get a black screen where it is supposed to be alfa? Any Help please – I am trying to avoid the step of having to render in AE first and just do it all together.
PC 1
I7 2.8 Ghz 8GB Ram
Win 7 Pro 64bit OS
PNY Quadro K2000
PC 2
I7 3930K 3.2Ghz
32 GB Ram
Win 7 Pro 64bit OS
PNY Quadro 40003-4 TB HD
Vegas 10 64bit & Vegas 11 64Bit & Vegas 12 & Adobe Production Premium CS5.5.2 & Avid Media Composer 5.5Camera
Sony EX1 shoot in 1920×1080 30P -
3 Replies
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Not all formats/codecs support exporting alpha from Premiere. I don’t have the Cineform codec handy, but you can export PNG sequences with alpha from Premiere.
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Or use the Quicktime Animation codec.
You have a few choices.
I am not on my editing PC, but when you export the Cineform AVI are you selecting 32bit to get the Alpha channel?
8 for R
8 for G
8 for B
8 for Alpha
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32 bitsSteven
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That was it – THANK U i never new about
8 for R
8 for G
8 for B
8 for Alpha
—
32 bits
Worked greatPC 1
I7 2.8 Ghz 8GB Ram
Win 7 Pro 64bit OS
PNY Quadro K2000
PC 2
I7 3930K 3.2Ghz
32 GB Ram
Win 7 Pro 64bit OS
PNY Quadro 40003-4 TB HD
Vegas 10 64bit & Vegas 11 64Bit & Vegas 12 & Adobe Production Premium CS5.5.2 & Avid Media Composer 5.5Camera
Sony EX1 shoot in 1920×1080 30P
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