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expression advice
I have an expression to create a random wiggle on a 3D layer:
seedRandom(13,true);
wiggle(1,300)problem is, it is not smooth enough. I am using this layers postion to drive Particular’s emitter, and it creates “kinks” in the particles emitted.
Changing the frequency (the #1 here) only slows the wiggle temporally.
What I want are smoother, more gradual turns and curves.
is there another line of code, or different expression that will give me wide, smooth curves?
thanks!
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3 Replies
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I thought there was a parameter in wiggle that handles this, but I can’t remember it off the top of my head.
In the meantime, you could apply the regular wiggle to a null and then average the current position of the null with the position it was in a few frames ago.
That will make the turns a little smoother, though not really curved. It would turn a square corner into an octagon, for example. If you want something closer to a curve, average a greater number of samples, and it will increase the number of “sides” to each turn. Also, increasing the time span between samples will dull the corners more.
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You can try to use the .smooth method. I can’t recall exactly, since I rarely use it, but should be something like that:
seedRandom(13,true);
my_wiggle=wiggle(1,30);
my_smooth=my_wiggle.smooth(5,10);[my_smooth]
Mylenium
[Pour Myl
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When I try it that way, I get “function smooth is undefined.”
But I got it to work by applying the wiggle to a slider control and then apply the smooth to another expression pick-whipped to that.
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