slider control wiggle with childComp and ParentComp

[Dan Ebberts]

Did you move the ChildComp layer in the ParentComp timeline so that it doesn’t start at time=0? If so, you need to compensate for that in your expression, like this:

C = comp(“ParentComp”);
ctrl = C.layer(“SliderControl”).effect(“Wiggle”)(“Slider”);
L = C.layer(thisComp.name);
a=wiggle(ctrl.valueAtTime(time+L.startTime),100);
[value[0],a[1]]

However, it looks like you’re animating wiggle frequency, which is not likely to turn out the way you want. If you run into unsatisfactory results, you should read what I have here:

https://www.motionscript.com/articles/speed-control.html#wiggle

Dan

[Johan Nordström]

Thanks Dan,

Yes im animationg wiggle freq, and im getting some weird behaviors.
And im having some problems understanding the code on your website.
Im not that good with code :/

ok, iv tried alot of different ways, but i dont really know what im doing 😛 so please dont laugh 🙂
this is what iv been trying to do:
C = comp("ParentComp");
freq = C.layer("SliderControl").effect("Wiggle")("Slider");
L = C.layer(thisComp.name);
amp = 10;
n = freq.numKeys;
if (n > 0 && freq.key(1).time < time){
accum = freq.key(1).value*(freq.key(1).time - inPoint);
for (i = 2; i <= n; i++){
if (freq.key(i).time > time) break;
k1 = freq.key(i-1);
k2 = freq.key(i);
accum += (k1.value + k2.value)*(k2.time - k1.time)/2;
}
accum += (freq.value + freq.key(i-1).value)*(time - freq.key(i-1).time)/2;
}else{
accum = freq.value*(time - inPoint);
}
wiggle(freq.valueAtTime(time+L.startTime),amp,1,.5,accum)