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Wiggle Expression – get another layer to wiggle one frame after
I’m rigging a character and would like his torso Rotation to wiggle slightly. To do this, I have the expression with Posterize Time and Wiggle:
//wiggle posterize time
posterizeTime(f);
wiggle(f,a);
In my animation I like to have the head rotate slightly one frame after the torso rotates for a smoother body motion.
But with this posterize time/ wiggle expression, I can’t seem to figure out how to get the head to wiggle one frame after the torso does. Any thoughts?
Essentially what that expression above is doing, is giving me a random value every (f) frames.
I’ve tried just doing (f+1) but it’s not rotating the head one frame after the torso.
My comp is at 23.976 fps if that helps.
Thank you in advance for any help!!
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4 Replies
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Give the head’s rotation this expression:
thisComp.layer("torso").transform.rotation.valueAtTime(time - thisComp.frameDuration); -
Thanks Filip!
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First of all – thanks again for this! Another question – so I’ve added slider controls to this expression so I can keyframe when it goes on and when it doesn’t.
But once I add the expression – even if my slider controls are set to 0, I can’t rotate the object anymore manually. Do you know if there’s a way to temporarily disable an expression using keyframes?
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Never mind I was able to just do an amazing thing called Googling haha
For anyone looking for something similar – you can use Checkbox Controls. Below is the evolved expression – just add 2 slider controls and a Checkbox control to your layer and add this expression
control = effect("Checkbox Control")("Checkbox");
if (control == 1){
posterizeTime(effect("Slider Control")("Slider"));
wiggle((effect("Slider Control")("Slider")), effect("Slider Control 2")("Slider"));
}else{
value;
}
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