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Simple expression question – HELP PLEASE! :)
Simple expression I think….
Ever see that Valvoline Mark Martin Ultrasound commercial? Well, imagine a still picture with an animated foot pushing a gas pedal. As the pedal is pushed, we hear revving and the picture wiggles.
SO, how can I make the intensity of a wiggle coincide with a larger rotation value (setting up with the anchor point on the ankle).
I’m using this as the example, but I see so many uses of this… text wiggles harder as it scales up etc…
Any help would be so appreciated, and if you can add variables that perhaps I haven’t thought of, all the more THANKS!!!
jpb
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2 Replies
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Therees a couple different ways to get something like this done, heres the one that I would use:
//–begin
driver = thisComp.layer(“Rotating Layer”).transform.rotation;
maxRot = 720;//degrees
minRot = 0;//degrees
freq = 3;//frequency of wiggle
ampMin = 3;//min amplitude of wiggle
ampMax = 30;//max amplitude of wiggle
//–
amp = ease(Math.abs( driver ), minRot, maxRot, ampMin, ampMax);
wiggle(freq, amp)
//–endIn that expression, as rotation goes from 0 to 720 (or 0 to -720) the amplitude of the wiggle would go from 3 to 30.
OR, you could do it like this with simpiler (but less easily adjustable code)
//–
div = 90;
freq = 10;
rot = thisComp.layer(“Rotating Layer”).transform.rotation;
wiggle( freq, Math.abs(rot)/amp );
//–in the second one just adjust div until you get something asthetically pleasing.
Enjoy.
~ Colin
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Pardon my delayed thanks!!!
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