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How to “Invert” a Propertie’s value
A Have an audio layer with it corresponding Audio Amplitude Layer. I link the both channels slider to a linear transition completition property.. OK funtion like a audio meter, but I notice that when the audio have a “PICK” the meter come down. obviously when the slider have a high value, the completion property have a high value as well. I need to invert this relation.. when the slider are up the completion are down. I try to multiply by a Minus number, but the completion still 0% value.
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4 Replies
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try “100-” in your expression
or you could alter the linear transition’s angle by adding 180 degrees, that would invert the direction of the filter.
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You could use linear() to remap the values, like this:
audioMax = 25;
completionMax = 0;audioMin = 0;
completionMin = 100;a= thisComp.layer(“Audio Amplitude”).effect(“Both Channels”)(“Slider”);
linear(a,audioMin,audioMax,completionMin,completionMax)Fiddle with the first four values until you get it the way you want.
Dan
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Thanks Dan. Your expression work fine, but, Can you explain a little more how the linear work?. Just to have a better idea for future uses.
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You have this:
audioMax = 25;
completionMax = 0;audioMin = 0;
completionMin = 100;a= thisComp.layer(“Audio Amplitude”).effect(“Both Channels”)(“Slider”);
linear(a,audioMin,audioMax,completionMin,completionMax)As the “a” value changes from “audioMin” and “audioMax”, the value of the Completion will change in a linear interpolation from completionMin to completionMax.
Lord Scales
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