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Activity Forums Adobe After Effects Expressions Expression Randomly Disables

  • Expression Randomly Disables

    Posted by Aaron Benitez on May 3, 2013 at 12:00 am

    I’m using a sampleImage expression. When I reference the R,G, or B ([0],[1], or [2]) the expression works but when I reference the alpha( [3]) it will work at first but then disable after a few seconds.

    target =thisLayer;
    a = thisComp.layer("Controller").effect("Sample Area")("Slider");
    alpha = target.sampleImage(effect("Lens Flare")("Flare Center"),[a, a])[3];
    linear(alpha, 0, 1, 0, 100)

    Dan Ebberts replied 13 years, 4 months ago 2 Members · 1 Reply
  • 1 Reply
  • Dan Ebberts

    May 3, 2013 at 12:29 am

    Does it generate an error message? Which version of AE are you using? Which property is the expression applied to?

    Dan

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