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Controlling the Speed of offset Turbulence
Hi, I have a solid with fractal noise, I want the noise always going downward so the first thing that comes to my mind is using the offset turbulence parameter and increasing the Y property with the “time” expression. I also want to control the speed of movement so I added a slider control to the same solid and called it “Speed”. I use this code on offset turbulence but the problem is when I animate the Speed from 10 to 5, the movement should go downward with a slower speed but it goes UP, I also make a chart to show the Y changes. I don’t know what is the problem. is my math incorrect or does the code have issues?
thanks a lot.
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4 Replies
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Hi Javad!
I think something like this should work:
const s = effect("Slider Control")(1).value;
[value[0], value[1]+time*s]Let me know if anything !
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That’s essentially what he has already, right? The issue is that it is not straightforward to animate speed in AE. I describe the problem and a solution here:
https://www.motionscript.com/articles/speed-control.html
motionscript.com
Expression Speed and Frequency Control
Dan Ebberts's resource for After Effects scripting and expressions
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thanks but it didn’t work.
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Thanks a lot. The article is exactly what I want.
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