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AI-PS-FCP/AE alpha channel problems

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anthony Faulkner
AI-PS-FCP/AE alpha channel problems
on Jan 7, 2010 at 1:51:18 am

Hi there,

I receive art work as illustrator files that i then cut up into layers and save them as ai files. I them open them in PS and resave them as Tiff files then into FCP/motion/AE.

I am careful to check the preserving transparency.

My problem is that some files will not preserve the transparancy. it will look like i have an alpha channel right up until the FCP/AE/motion stage.

I have tried resaving them with a variety of options and cannot find the root of the problem. I don't know much about illustrator but it hink the problem must lie in the original source files or how they are saved??

The problem seems to be random and i cannot find any difference in the files that will preserve the alpha channel and those that won't. when they don't it appears as a black background.

I am running 10.5.8. FCP 6.06 Ai 14.0 PS 11.

thanks for any help.


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David Cabestany
Re: AI-PS-FCP/AE alpha channel problems
on Jan 10, 2010 at 4:01:33 am

Don't know about FCP, but AE can accept Illustrator files natively and they all come with an "automatically generated" alpha channel on it, you do not need to export them and artificially generate tha alpha on Photoshop, just save them as CS4 (CS3 if you are in AE CS3) with create PDF Compatible File checked.

Also keep in ind that Illustrator can separate each object into a different layer for you, then you either import each separate layer as you need them or import the whole set as a composition. Go to the layers panel, click on the little twirly in the top right corner and select Release to Layers, sequence or build depending on your needs, each object or group of objects will be separated to its own layer.

Premiere Pro also accepts Illustrator files natively with the alpha channel so chances are FCP does as well.

Best,

D.


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