• Adobe After Effects Expressions

  Can I populated DropdownEffect from an expression?

  Posted by Trevor Asquerthian on May 3, 2020 at 9:42 am

  I’m trying to set up a comp with drop down controllers on a null layer (eventually to become a MOGRT and run in Premiere).

  The first drop down has a number of items. Dependent on that choice I want to populate a second drop down menu.

  I found the code to do this (scripting section of here) but it seems that it can only be run from a script?

  Anyone have bright ideas about how to do this?

  Filip Vandueren replied 5 years, 6 months ago 3 Members · 2 Replies
• 2 Replies

• 

  Benjamin van Houts

  October 15, 2020 at 7:43 am

  sorry don’t have the answer, but we have similar problems. I want to populate a Drop down menu’s items from a data in a csv file for a MOGRT
• 

  Filip Vandueren

  October 18, 2020 at 10:21 pm

  Yes, it can only be done with a script.

  I don’t think .mogrt’s can trigger scripts yet ?
  So you cannot give the premiere user dynamicly populated dropdowns without having them run a script inbetween selections.

  If it’s just the look of an effect, then could it suffice to just offer placeholder-text like “Option 1″,”Option 2” ?

  Or is it setting text-options ? More like select a country first, then select a state/region from that country ?

  BTW, the result of a dropdown menu will always just be an index, so even if a script changed the label of allt he options, an expression will not know the new values, only the number of the selected option, and the expression would have to do all the logic the script does too, just to know what actually is selected.

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