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scale bounce in one direction x or y

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Jose Arce
scale bounce in one direction x or y
on Jul 16, 2011 at 11:40:56 pm

Hi, several year ago I posted about how to make a scale bounce, and Mr. Dan Ebberts send me this great expression, I abuse it a lot, and now I need to move it in only one direction, x or y. this is the expression.

Thanks

n = 0;
if (marker.numKeys > 0){
n = marker.nearestKey(time).index;
if (marker.key(n).time > time){
n--;
}
}

if (n == 0){
value;
}else{
maxDev = 10; // max deviation in pixels
spd = 10; //speed of oscillation
decay = 3.0; //how fast it slows down

t = time - marker.key(n).time ;
x = scale[0] + maxDev*Math.sin(spd*t)/Math.exp(decay*t);
y = x;

[x,y]

}


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Dan Ebberts
Re: scale bounce in one direction x or y
on Jul 17, 2011 at 12:42:40 am

Just change:

[x,y]

to:

[x,value[1]]

That should do it.

Dan



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Jose Arce
Re: scale bounce in one direction x or y
on Jul 17, 2011 at 1:29:51 am

Thanks.
I figure out the effect in Y position just I need to change the value in
[x,value[1]] to [value[2],y], nop don't work...couse is 0 no 2..

Kind regards


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