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after effects cs5

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chris cuddyafter effects cs5
by on May 24, 2011 at 7:22:31 pm

i am having trouble with the roto brush after i have roto brushed an image out of a clip when i come to render it to put in fcp i am getting no transparency i am getting a black back ground is there something i am missing in the render settings ive tried different settings but still no joy

could anyone help

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Dave LaRondeRe: after effects cs5
by on May 24, 2011 at 7:30:28 pm

You need to render in a codec that supports alpha channels, like Quicktime's PNG & Animation codecs.

Render RGB+Alpha, Millions of Colors +, Straight (not premultiplied).

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA

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chris cuddyRe: after effects cs5
by on May 26, 2011 at 5:25:03 am

Thanks for the info I tried what you said I found that if I used losses with alpha it rendered ok

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