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Activity › Forums › Adobe After Effects Expressions › Expression for transparency to fade in, when another layer fades out

  • Adobe After Effects Expressions

    Expression for transparency to fade in, when another layer fades out

    Posted by Josh Smith on October 21, 2015 at 8:41 am

    As the title says, basically for example, at 1st second then transparency of layer 1 is 100 and layer 2 is 0, then at 2nd second layer 1 is 0 and layer 2 is 100.

    Essentially it’s like an inverse of the keys

    So they fade at the same time but only have to move keys for one layer basically

    Any ideas?

    Josh Smith replied 10 years, 7 months ago 2 Members · 2 Replies
  • 2 Replies

  • Kalleheikki Kannisto

    October 21, 2015 at 9:48 am

    For layer #2 opacity:

    100-(pick whip layer #1 opacity here)

  • Josh Smith

    October 21, 2015 at 9:52 am

    Excellent, couldn’t get my head round the maths! Thanks very much

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