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Delaying a layer start point based on x position
Hi all,
I am making an animation in the style of a credit sequence or endless scroll, vertically.
All the objects on the scroll are moving vertically at a speed based on a simple slider control:[value[0],time*comp(“Master”).layer(“Speed Control”).effect(“Slider Control”)(“Slider”)+value[1]]
The items in the scroll are are precomps with animation inside.
I want to keep the speed of the entire comp flexible, so I can change the overall rate of the scroll with the slider, but I don’t want to change the speed of the animation within each scrolling precomp (hence cannot timeremap entire comp).
I’m looking for a time remapping or time delay expression that will start the layer once the layer has passed x height 0 so that it’s triggered once it enters the frame. Any idea how I can delay a layer so that it is triggered based on an x-height threshold?
Thanks!
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5 Replies
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Sorry guys, I meant the y-value, the vertical value, not x.
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It will probably be something like this:
if (transform.position[1] > 0){
t = time;
while (transform.position.valueAtTime(t)[1] > 0){
t -= thisComp.frameDuration;
}
time - t;
}else 0
Dan
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Thanks Dan! This works like a charm, while waiting and playing around I used
if (transform.position[1]<1) (1/30) else transform.position[1]/thisComp.layer(“Speed Control”).effect(“Slider Control”)(“Slider”)
because I wasn’t aware of thisComp.frameDuration
QUESTION ON TOP OF THIS
Probably nothing for it, but after doing all this I am getting errors because i’m using particular in my precomp. Anyway to get around these errors? Like an alternative to time remapping?
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What kind of errors?
Dan
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Particular cannot work on a time reversed layer. I usually only get the error when the time remap is less than 0 but sometimes I also get the error that particular can’t work in a time remapped comp.
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