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After Effects rendering problem

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bree adamsAfter Effects rendering problem
by on Jan 5, 2010 at 5:35:58 pm

I am rendering some HD footage into am Mpeg format and the entire video is solid white. I know the footage is good because I rendered it earlier with no problem.

I am on an imac most current version and AE CS4. I have three imacs and this problem has randomly happened on the other computer in after effects as well. Now it is happening on this one.

Any ideas? When I watch it in the render screen it looks great but on playback solid white.

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Dave LaRondeRe: After Effects rendering problem
by on Jan 5, 2010 at 6:48:36 pm

[bree adams] "I am rendering some HD footage into am Mpeg format..."

Bad Idea. Read on.....

Dave's Stock Answer #3:

Don't use AE to compress files for final delivery. The various compressors are there only to make quick 'n dirty files showing a project's progress to producers, clients, the kids, etc. AE is incapable of doing multipass encoding, a crucial feature that greatly improves the image quality of H.264 and MPEG-type files in particular.

Render a high-quality file from AE, and use a different application to do the compression. Popular ones are Adobe Media Encoder, Sorenson Squeeze and Apple's Compressor, which comes bundled with Final Cut Suite. Even compressing in Quicktime Pro is better than compressing in AE.

Making good-looking compressed files is almost as much an art as it is a science. It is NOT straightforward at all. I recommend asking a few questions at the COW's Compression Techniques forum.

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

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