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Assing value to slider through expressions
Hello everyone!
I’m very new to expressions, so please excuse if this is a stupid question.
I need to have a varibal that updatates automaticly based on its layers position in the comp. So e.G.:.
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LayerIndex 1 : Var NewX = 5
LayerIndex 2 : Var NewX = 4
LayerIndex 3 : Var NewX = 3
LayerIndex 4 : Var NewX = 2
LayerIndex 5 : Var NewX = 1I read somewhere that I can’t just access NewX of the layer below call it PrevX, add 1 and call it NewX again. So I tried to work around that and tried this with a slider control;
PrevX = thisComp.layer(Index-1).effect(“Einstellungen für Schieberegler”)(“Schieberegler”); /*this is just German for
slidercontrol (slider of
the layer below) */
NewX = PrevX + 1;
effect(“Einstellungen für Schieberegler”)(“Schieberegler”).value = NewX; /* Slider of current layerThis doesn’t produces any errors but the slider of the NewX Layer doesn’t update. I hope my explanation isn’t to confusing and sorry for any errors. English is not my first language.
I’m thankful for any help!
Adrian
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1 Reply
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Ok figuered it out myself! My idiotic self thought I could change a value of a property in another layer than the expression is in…
Ofcourse I have this on my slider now (I have a slider with the same name on every layer):
thisComp.layer(index+1).effect(“Einstellungen für Schieberegler”)(“Schieberegler”) + 1;
and this on the positon:
timeToStop = effect(“Einstellungen für Schieberegler”)(“Schieberegler”);
xOffset = easeIn(time,timeToStop,timeToStop+1,0,250);
thisComp.layer(index+1).transform.position.valueAtTime(time-1) + [xOffset,0];The last two lines don’t have anything to do with my problem really, but I included them anyways.
This works great for me now. Maybe this will help another beginner so he/she doesn’t have to spend hours trying to figure it out (even though that is half the fun ;))
Thanks,
Adrian
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