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Activity Forums Adobe After Effects Expressions Trapcode Form, setting active form via script

  • Trapcode Form, setting active form via script

    Posted by Jason Ayre on November 9, 2019 at 12:16 am

    So it looks like if I have more than 1 trapcode form (via the same form effect instance, i.e. Master Form, Form 2, Form 3) — I can only set properties for the form I last had open in the effect viewer, otherwise I get “After effects error: Can not “set value” with this property, because the property or a parent property is hidden.

    I.e., if I have Form 2 open and do:

    effect.property(“Size X F2”).setValue(size[0]);
    Works fine, but when I do:
    effect.property(“Size X F3”).setValue(size[0]);

    I get the error. But if I switch to F3, then I get the error on F2. — Does anyone know how to select the current form via script in the effect controls panel and or work around this limitation?

    Jason Ayre replied 6 years, 8 months ago 1 Member · 1 Reply
  • 1 Reply
  • Jason Ayre

    November 9, 2019 at 12:36 am

    Nevermind, think I got it. I had to click “All forms” button below show forms.

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