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Forums Adobe After Effects Did I miss something? Precomposition default length?

  • Did I miss something? Precomposition default length?

     Brian Cooney updated 4 months ago 2 Members · 3 Posts
  • Brian Cooney

    January 21, 2022 at 3:11 pm

    Hi . Am I losing it or did there used to be a way to set the default duration of a precomposition. like 10secs, etc? Not sure if that got axed. But can’t seem to find it.

    thanks. – B

  • Walter Soyka

    January 21, 2022 at 5:32 pm

    I don’t think that there has ever been a way to set a default custom precomp duration. There are a bunch of different situations that will give you different results, but I think they mostly make sense.

    Here’s how precomposition duration is determined:

    1. If you precompose a single layer and choose “Leave all attributes in comp,” then the duration of the precomp will be the duration of the layer source.
    2. If you precompose a single layer and choose “Move all attributes into the new composition” and you do not check “Adjust composition duration to the timespan of the selected layers,” then the duration of the precomp will be the duration of the containing comp.
    3. If you precompose a single layer and choose “Move all attributes in the new composition” and you do check “Adjust composition duration to the timespan of the selected layers,” then the duration of the precomp will be the duration of the source layer.
    4. When precomposing multiple layers, “Leave all attributes in comp” is not an option; you must use “Move all attributes into the new composition.” In this case, if you check “Adjust composition duration to the timespan of the selected layers,” then the duration will run from the beginning of the earliest selected layer to the end of the latest selected layer.
    5. If you precompose multiple layers and you do not check “Adjust composition duration to the timespan of the selected layers,” then the duration of the precomp will be the duration of the containing comp.

    Creating new comps (versus precomps) follow different rules:

    1. If you’re just creating a new composition and not using the precompose feature, then Ae uses the settings and duration from the last composition you created through the New Composition dialog window. This setting is sticky per-user across projects.
    2. If you’re creating a new composition from a single piece of non-time-based footage (i.e., stills), the duration of the comp will be that sticky duration from the last comp you created via the New Composition dialog window.
    3. If you’re creating a new composition from a single piece of time-based footage (i.e., movies or audio), the comp duration will match the source footage.
    4. If you’re creating a new composition from a set of multiple pieces of footage, whether they are time-based or not, you’ll get a dialog asking if you want to layer them or sequence them, how much overlap, and how long non-time-based footage (i.e., stills) should last in the timeline.

  • Brian Cooney

    January 21, 2022 at 6:48 pm

    thank you so much Walter. Man.. I stepped away and got back in and could have sworn there was a preference setting. But I was wrong. I think your #2 is the fix I’m looking for. really appreciate it.

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