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Random Position/Scale Expression

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Ryan Kehn
Random Position/Scale Expression
on Jan 31, 2009 at 7:07:09 pm

I'm trying to mimic and effect I've seen quite a bit (although I don't have an example to share) where text jumps around the screen randomly from a home location. I've messed with random and wiggle expressions, but I don't want to see the text move in between the points, just instantaneously skip around, but still come back to it's original point. Anyone have any suggestion?


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Dan Ebberts
Re: Random Position/Scale Expression
on Jan 31, 2009 at 9:00:21 pm

What do you mean by "come back to its original point"? When? How often?


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Ryan Kehn
Re: Random Position/Scale Expression
on Jan 31, 2009 at 9:29:25 pm

probability = 5
r = Math.round(random(-probability +2, 1));
v = clamp(r, 0, 1);
s = wiggle(3, 400*v)

Hey Dan,

Sorry i didn't do a very good job of explaining that...

The expression i'm using as a base is below, but basically, I'm looking for the object to jump abruptly to a random position and hold it for a few frames before returning to the original position it was placed at. Does that make any more sense? the expression below acheives the look, i just want it to hold the position it jumps to for a few frames and snap back without seeing the transition in between.

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Elad Menashe
Re: Random Position/Scale Expression
on Feb 3, 2009 at 12:06:28 pm

Although it is possible to solve this with expression it would be better to use AE text animators with a wiggly selector.
You can set the parameters to move the whole text at once.
Let me know if you need extra help with that.


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