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Can someone explain how the wiggle expression parameters work?
I’m trying to use the wiggle expression to change the opacity of an image in my comp. I want the opacity centered around 50% and for it to wiggle from anything from 0% to 100%.
At the moment the opacity of the layer is set to 50%, so my expression looks like:
wiggle(4, amp)
The question is, will the ‘amp’ setting wiggle above and below 50% by amount you set, or is that the total range of the wiggle (in other words half above and half below)?
i.e. do I need an amp of 50 (giving me 50 above and below 50%), or do I need an amp of 100 to get the range I need?
Thanks for looking and I hope this makes sense…
Tom
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2 Replies
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It will wiggle around the static or keyframed value of the parameter. If you have opacity set to 50% and use the expression wiggle(4,50) you’ll get what you’re after. Open the expression graph and you’ll see what’s happening.
Dan
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