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Counter Control with Expressions
We’ve been trying to create a flip clock type counter in After Effects for a client video, and have gotten a single digit flip counter in working order, so that as you scrub down the timeline the numbers increment up.
However, we want it to be a three digit counter, and are having trouble thinking of an expression that would make the ten’s place holder increment up by 1 only when the one’s place holder transitions from 9 to 0.
Can anyone out there help?
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4 Replies
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Nevermind, on the ten’s place precomp we applied a time offset variable and basically divided it by ten.
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Here’s an expression from After Effects Expressions that you might find useful:
var startingMinute = 9;
var startingSecond = 4;
var seconds = Math.floor(time) + startingSecond;
var minutes = Math.floor(seconds / 60) + startingMinute;
var secondsAsPartsOfAMinute = Math.floor(seconds % 60);
function addZeros(rawNumber)
{
if (rawNumber < 10) return "0" + rawNumber;
return "" + rawNumber;
}
addZeros(minutes) + ":" + addZeros(secondsAsPartsOfAMinute);
Johnny Cuevas, Editor
Thinkck.com“I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
—THOMAS EDISON on inventing the light bulb. -
That’s another good solution.
Johnny Cuevas, Editor
Thinkck.com“I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
—THOMAS EDISON on inventing the light bulb. -
You could also pre-compose the first animation and then Time Remap the pre-comp accordingly.
Tudor “Ted” Jelescu
Senior VFX Artist
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