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Triggering an expression function using a timeline marker
Hi there
I have the below ‘countdown timer’ expression working just fine.
However now I would like to action this expression by use of a Layer Marker on my timeline.
i.e. only when my timeline hits my marker at say 10 seconds, do I want this ‘countdown’ expression to start from the input time.
rateOfSpeed = 1;
clockStartTime = effect(“timer duration”)(“Slider”)*60; // This is a pickwhipped slider control
function addZero(n){
if(n<10) {return “0” + n}else{return n};
}clockTimeNumber = Math.floor(clockStartTime – rateOfSpeed*time);
clockTimeNumber/60;
minutes = Math.floor(clockTimeNumber/60);
seconds = clockTimeNumber%60
minutes + “:” + addZero(seconds);} else {
value
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2 Replies
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Instead of this part clockTimeNumber = Math.floor(clockStartTime – rateOfSpeed*time);
Try this:
t = time - thisComp.marker.key(1).time;
if (t<0) t=0;
clockTimeNumber = Math.floor(clockStartTime - rateOfSpeed*t);Keep the rest of the expression the same, although there seems to be something missing in the part you pasted here (it endse with an else-clause, but there’s no if before it)
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That worked perfectly thanks Filip!
to answer your question; the IF is hiding in the addZero function.To further this, what would need to be added to pause and unpause this timer using markers?
Thanks man, Lifesaver!
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