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marker name in the expression
Hi guys,
I am trying to make an automatic animation data driven (from layers called “val ++”).
and then i want to animate this property with the markers time and a simple ease() operator, but it looks that I cant name my markers with a variable…
what am I doing wrong in this?
Many Thanks
Daniele
n= 0;
if (marker.numKeys > 0){
n = marker.nearestKey(time).index;
if (marker.key(n).time > time){
n--;
}
};prev = n+1;
next = n+2;
K1 = String.valueOf(prev);
K2 = String.valueOf(next);Val1 = thisComp.layer("val "+prev).text.sourceText;
Val2 = thisComp.layer("val "+next).text.sourceText;T1 = parseInt(Val1.split(' '));
T2 = parseInt(Val2.split(' '));
U = marker.key(K1).time;
B = marker.key(K2).time;
TT = ease(time, U, B, T1, T2);
[TT, TT]
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5 Replies
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I tried your expression and found 2 flaws to it. It said that K1 is a function and it needed a number on line 22, and got out of reach for either markers or layers. So i modified it a bit. Tell me if it works, or what does’nt work, in case something is wrong. This is what i got
n= 0;
if (marker.numKeys > 0){
n = marker.nearestKey(time).index;
if (marker.key(n).time > time){
n--;
}
};prev = n;
next = (n>=marker.numKeys) ? marker.numKeys : (n+1);
K1 = prev;
K2 =next;Val1 = thisComp.layer("val "+prev.toString()).text.sourceText;
Val2 = thisComp.layer("val "+next.toString()).text.sourceText;T1 = parseInt(Val1.split(' '));
T2 = parseInt(Val2.split(' '));
U = marker.key(K1).time;
B = marker.key(K2).time;
TT = ease(time, U, B, T1, T2);
[TT, TT]
Andrei
My Envato portfolio. -
Wow!
It works very well.Thanks a lot Andrei!
Daniele
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Hi Andrei,
I hope you’re doing well! I am Andy Diesel, an experienced After Effects user but new to coding expressions. I found this helpful discussion with Daniele Zacchi about using marker names in expressions.
I’m working on a project where markers drive animations across layers, synced to an audio track. I’d love to clarify some points about marker usage and automation. Would you be able to offer some guidance?
Thanks so much!
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Hi Andy,
I can help as much as time allows me. My personal email is andreipopa191187@gmail.com, you can write me there and we can talk.
Cheers,
Andrei
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I greatly appreciate it, Andrei.
I’ve sent you the details and will hopefully send a fuller post as I complete this learning.
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