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A way to return the MAX or MIN for a fluctuating value?
Quick question —
is there a mechanism in expressions where we can point to a value (let’s say a slider in another effect which is being driven by an expression in itself) and return it’s maximum (and minimum) values — as reached anywhere within the duration of the comp — as static numbers?
THX
LMNLu Nelson
Berlin, Germany
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[MacProQ2.66, 8GB, Sys10.5.6, FCP 6.0.5, AE 9.0.2] -
2 Replies
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You have to loop through the comp, checking the value at each frame. Something like this should work:
minVal = 9999999;
maxVal = -9999999;parm = // your slider here
t = 0;
while (t < thisComp.duration){ if (parm.valueAtTime(t) >= maxVal) maxVal = parm.valueAtTime(t);
if (parm.valueAtTime(t) <= minVal) minVal = parm.valueAtTime(t); t += thisComp.frameDuration; } At the end of the loop minVal and maxVal have the values you're looking for. Dan -
Awesome, Dan
Thanks — that’ll save me a lot of handwork
Lu Nelson
Berlin, Germany
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[MacProQ2.66, 8GB, Sys10.5.6, FCP 6.0.5, AE 9.0.2]
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