Run AE Script on Multiple Comps

[Walter Soyka]

Here’s some commented sample code that processes each comp selected in the project panel:

// put your comp-processing code in this function
// we're just going to add "_processed" as a suffix to the comp's name as proof of concept
function processComp(myComp) {
if (myComp instanceof CompItem) {
myComp.name += "_processed";
}
}

// this could be a massive change, so let's make sure we can undo it if we want
app.beginUndoGroup("Process selected comps");

// get the project selection so that we can change the items
// working directly on app.project.selection might cause the sort/selection order to change,
// so we'll work from an object that represents the initial state of the selection
var projectSelection = app.project.selection;

// step through the entire selection set. For each item that's a comp, call our processComp() function
for (var selectionIndex = 0; selectionIndex < projectSelection.length; selectionIndex++) {
if (projectSelection[selectionIndex] instanceof CompItem) processComp(projectSelection[selectionIndex]);
}

// close the Undo group after we've finished
app.endUndoGroup();

This should give you a good start. Let me know if you have any questions!

Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
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