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Grayed out frames??? HELP

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chris mcfallGrayed out frames??? HELP
by on Feb 27, 2010 at 7:48:47 pm

Ok Its probably because my system is lame or something simple but has ANYONE got ANY ideas why after effects is displaying gray frames (with tiny purple and green dots) on what seems to be randomly chosen frames through out the film i'm trying to work on? Here is a screen shot...

Please help :)

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David JohnsonRe: Grayed out frames??? HELP
by on Feb 27, 2010 at 9:36:06 pm

Are you working with footage of any kind of codec AE doesn't like?

Courtesy of forum leader Mr. Dave LaRonde ...

Dave's Stock Answer #1:

If the footage you imported into AE is any kind of the following -- footage in an HDV acquisition codec, MPEG1, MPEG2, AVCHD, mp4, m2t, H.261 or H.264 -- you need to convert it to a different codec.

These kinds of footage use temporal, or interframe compression. They have keyframes at regular intervals, containing complete frame information. However, the frames in between do NOT have complete information. Interframe codecs toss out duplicated information.

In order to maintain peak rendering efficiency, AE needs complete information for each and every frame. But because these kinds of footage contain only partial information, AE freaks out, resulting in a wide variety of problems.

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chris mcfallRe: Grayed out frames??? HELP
by on Feb 28, 2010 at 1:17:01 am

Do you mean like a GOP (group of pictures) format, Thats something I hadn't considered... They were handed off to me as avi files but not sure what the compression codecs were, I will check it out, I'm fairly sure you hit the nail on the head! I was beginning to think it was a ram issue... Thanks very much :)

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