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changing speed
Hi everyone! I’m new at using expressions and After Effects, so bear with me here.
I am having trouble figuring out how to use the speed expression. I have a Math.sin(time)*10 expression that someone kindly helped me with, and I’d like to add speed to the animation. Currently, the animation moves back and forth in a limited range, but I cannot change the speed without keyframe. I’d like to avoid keyframe to gain more flexibility.
Would love some pointers. Thanks so much!
Best,
Sonia -
3 Replies
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If you just want to be able to set the speed to some other value, you could do something like this:
s = effect(“Slider Control”)(“Slider”);
Math.sin(time*s)*10where setting the slider to 5, for example, would make it oscillate 5 times as fast.
If you want to animate the speed, that’s a more difficult issue, and you should probably check this out:
https://motionscript.com/articles/speed-control.html
Dan
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Dan, thanks so much for this! I tried putting the expression into Rotation but it gave me an error. Sorry, please bear with me, I’m very new at this. Not sure where I can put in this expression. Thanks again!
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That expression is for the Position property.
Dan
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