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Count frames until an animation property reaches a certain value
I have a simple animation, a shape layer is moving from left to right.
Now I want know at which frame the X-value of the reaches 500.
I have set up this expression, but it does not work:
var compLength = thisComp.duration / thisComp.frameDuration;
var posX = thisComp.layer(“shape”).transform.xPosition;
for (i = 0; i <= compLength; i++) {
posX.valueAtTime(framesToTime(i)) = 500
}
ii should return the frame value, but is doesn’t.
Any help would be greatly appreciated.
replied 12 months ago 4 Members · 6 Replies
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6 Replies
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You were close. Try it this way:
var compLength = thisComp.duration / thisComp.frameDuration;
var posX = thisComp.layer("shape").transform.xPosition;
for (i = 0; i <= compLength; i++) {
if (posX.valueAtTime(framesToTime(i)) >= 500) break;
}
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i’m recording a custom tutorial for you with the solution, just wait for a little bit and you’ll see it!
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Hi Dan,
thanks a lot! This works perfectly!
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Hi John,
thank you very much for visualising your solution!
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Thanks for solving this, John!
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