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Parent Y-scale to a slider
I’m trying to use this expression to parent only the y-scale of a layer to a slider.
But I’m getting this:
“Bad argument: index 1 out of range for stream of dimension 1, Expression disabled.”It works fine for x-only when I change it to this:
[temp[0], value[1]];Why?
temp = thisComp.layer("Null 3").effect("Slider Control")("Slider");
[value[0], temp[1]];People say my motion graphics are moving.
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9 Replies
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You’re trying to extract a second dimension from a value that only has one (the slider). Try it this way:
temp = thisComp.layer(“Null 3”).effect(“Slider Control”)(“Slider”);
[value[0], temp];Dan
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Yup, that worked.
Thanks!People say my motion graphics are moving.
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Actually I thought that was the whole issue, but now I’m hitting another snag when I try to use an audio-to-keyframes layer to control the value of Y-scale.
error: “Expression result must be of dimension 2, not 1”
a = thisComp.layer("audio").effect("Both Channels")("Slider");
[value[0], a];linear(a, 0, 12, 100, 112);
People say my motion graphics are moving.
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I think this is what you want:
a = thisComp.layer(“audio”).effect(“Both Channels”)(“Slider”);
y = linear(a, 0, 12, 100, 112);
[value[0], y];Dan
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Worked great!
Thanks again, Dan.People say my motion graphics are moving.
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Hey Dan,
what if i want to Parent X-Scale AND Y-Scale to a different Slider? I couldn’t figure it out.
Would be great to hear from you!Thanks in advance,
Rob
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Something like this should work:
x = thisComp.layer(“Your Layer”).effect(“Slider Control X”)(“Slider”);
y = thisComp.layer(“Your Layer”).effect(“Slider Control Y”)(“Slider”);
[x,y]Dan
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Thank you very much!
One more question – how could i define the anchor point / postion from where it should scale…? ????
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You’d need an expression for the Anchor Point (and possibly a compensating Position expression, if you don’t want the layer to move when you change the Anchor Point).
Dan
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