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extending nested comps

Sep 16, 2013 4:44 PM



I've been having problems related to changing the duration of nested comps. If i change the nested comp's length (in comp settings), a greyed-out bar appears in the timeline of the comp in which it is nested. The layers which have been extended within the nested comp do not show up in the greyed out section shown in its parent comp timeline. In fact, the greyed out section goes completely black. I have to delete the extended comp from the timeline, and drag it back in from the project panel to get it to work (and not be greyed out). All this involves a lot of extra work and re-working of the  nested comp's parameters in its parent comp timeline.


I hope I've explained this clearly. I have been unable to find any relevant info for this issue. If anyone can explain to me what is happening here, and what i need to do to update my comp lengths in this regard, I'd sure appreciate it. Please note, this is not a time-shift issue, as i'm not stretching frames or anything, I'm aware of those issues. This is a project with a lot of nesting comps, made up of various elements -- a lot of animated image layers and text events and such which can be freely extended within their comps, as long as there is enough time to do so. This project is in development and expanding and needs to be responsive to creative changes. Nothing 3D so far, but that will be involved later. I'd really like to get the workflow more flexible here.


thanks for any advice,


  • Currently Being Moderated
    Sep 16, 2013 5:08 PM   in reply to NJ17

    AE treats comps like a piece of footage, so think of any comp's duration as the duration of a piece of video footage. With that in mind, open the nested comp and change its duration there.  Then you can change its duration in the main comp by extending its out point. 

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  • Currently Being Moderated
    Sep 17, 2013 2:51 PM   in reply to NJ17

    Did you open the nested comp to extend its duration?  It doesn't sound as if you did that.  Nothing will work unless you do that first.

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  • Currently Being Moderated
    Sep 17, 2013 5:08 PM   in reply to NJ17

    Hmmm.... that certainly isn't how it should work.  But for now, I'd open the nested comp on its own, lengthen the duration in the comp settings, then REPLACE the nested comp in the parent comp with the one in the project window.  Highlight the nested comp layer in the parent comp, then opt-drag mac or alt-drag win to do the replacement.

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  • Currently Being Moderated
    Sep 18, 2013 10:32 AM   in reply to NJ17

    Is it possible that you've got some cache weirdness or something? Try clearing your cache out.

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