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Forums Adobe After Effects expression to take value from another comp

  • expression to take value from another comp

  • Graham Quince

    May 19, 2005 at 1:55 pm

    Hi guys

    I’m building a virtual room which contains a hinged door and would like to be able to open and close the door with relative ease. I’ve built the door and frame as a separate comp which i’ve nested into the main comp and used the collapse transformations option.

    Everything is fine and using the comp synchronise option, i can jump back and forth from the main comp to the door comp to adjust rotation keyframes, to allow the door to move. but i’m lazy-ish and also curious. 🙂

    is it possible to add a null object to the main comp and have it’s rotation open the door?

    The only expressions i use myself are built with the pickwhip, so i’ve no idea how to go about this.

    Graham

  • Mylenium

    May 19, 2005 at 3:14 pm

    Add your null and pick-whip across compositions (dragging on the timeline tabs will open a separate timeline window for a composition) – it’s as simple as that. No fancies required.

    Mylenium

    [Pour Myl

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