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AE Expression – Source text based on main comp time
I’ve created a one hour countdown timer. At the start of each minute I’d like to transition to a different background for 5 seconds then transition out. This new background requires a change in the timer’s text color.
To achieve this I’ve created a precomp with the new background and a duplicate of the timer text layers with text recolored. Ideally I’d like to reuse this single comp multiple times on top of the main timer, instead of creating a new precomp for each minute’s change.
Within the precomp I’ve changed the source text expression to: comp(“countdown”).layer(“00”).text.sourceText;
This gives me the text I want to see, but from the beginning of the main countdown comp. If my precomp is located at X min on the main comp’s timeline, what code would I add to display the text at that point in time?
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1 Reply
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Expressions in AE run every frame – so what’s needed is an IF statement to check the value of the source text – and when the source text displays a value within 5 seconds of each minute, then run that colour change function.
Something like:
var mins = parseInt(time/60);
var secs = parseInt(time)-(mins*60);
var col = "#FF0000";
if (secs < 6 || secs > 55) {
col = "#00FF00";
}
hexToRgb(col)
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