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Audio Amplitude and Saber slider
Help with Slider Animation
Hello friends,
I have an Audio Amplitude layer. When the Audio Amplitude hits a keyframe that is 39, I want a specific saber slider to move from 0 to 100 in 30 seconds. I have an expression but instead of the animation being smooth it blinks in and out. The saber slider bounces from the correct value to 0 during animation. I dont want to use markers bc my song could change. Any ideas?
-Thank you
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7 Replies
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Like this maybe:
triggerVal = 39;
a = thisComp.layer("Audio Amplitude").effect("Both Channels")("Slider");
t = 0;
for (f = 0; f <= timeToFrames(time); f++){
if (a.valueAtTime(framesToTime(f)) >= triggerVal){
t = time - framesToTime(f);
break;
}
}
linear(t,0,30,0,100) -
Dan Ebberts This works perfectly. I’ve watched youtube videos and read forums and no one could answer this question except you. I’ve tried for 2 weeks to get this to work and you did it in 1 hour. Terrific! Thank you! -Chris
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Thank you for this solve, Dan!
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This expression works great but it only executes once. Any ideas on how to get the slider to reset back to 0 after it hits 100% and wait for the next trigger value?
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Try this:
triggerVal = 39;
a = thisComp.layer("Audio Amplitude").effect("Both Channels")("Slider");
t = 0;
f = 0;
while (f <= timeToFrames(time)){
if (a.valueAtTime(framesToTime(f)) >= triggerVal){
t = time - framesToTime(f);
if (t <= 30) break;
f += timeToFrames(30);
}
f++;
}
t > 30 ? 0 : linear(t,0,30,0,100) -
OMG! That is total genius. It works flawlessly. Thank you again Dan!
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Thank you for solving this, Dan!
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