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Use marker to control where animation starts
Hi guys looking for some help to do this with an expression. Ive got an In and an Out animation on the position property. What Id like to do is control the out animation with a marker so I can just shift the marker and the out animation would be triggered where ever the marker is on the timeline. I know this can be done in AE 2019 with Responsive Design but Responsive Design doesnt work in earlier versions I dont think. Can anyone help out with this please. Any responses is greatly appreciated.
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4 Replies
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How are you doing it now (without the marker)?
Dan
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I am doing it by shifting the keyframes. Alternatively id like to add a marker to make things easier. Also I am new to AE so im still figuring alot of things out. If you can help my utmost thanks to you.
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The expression needs to know which keyframe starts the out animation. For this example, I’ve assumed it’s the 3rd keyframe:
outKey = 3;
if (time > key(outKey-1).time){
m = marker;
n = 0;
if (m.numKeys > 0){
n = m.nearestKey(time).index;
if (m.key(n).time > time) n--;
}
t = n > 0 ? time - m.key(n).time : 0;
valueAtTime(key(outKey).time + t);
}else{
value;
}
Dan
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It’s working perfectly Dan. Many thanks.
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