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Bounce 3D layer at specific time
Hello Dan, everybody…
It’s been a while since I’ve been here…
So, I’ve searched all over and tried several expressions to do what I want, but it just doesn’t work.
I got Dan’s Bounce with (his also) timeToStart I found around here, but the layer it’s attached to (position) won’t budge.
I trie using the inPoint option also, and dragging the layer to show at 2 seconds – for which I removed all the “time” options, leaving only the raw Bounce expression… and still it doesn’t move. What I notice is that the expression starts over at 0 and by the time it get’s to 2 seconds, THEN I see a little movement.I hope I was clear on this.
What can I do ?Thanks.
EriktimeToStart = 2;
t = time - timeToStart;
if (t > 0){
veloc = 10;
amplitude = 700;
decay = 5.0;
y = amplitude*Math.cos(veloc*time)/Math.exp(decay*time);
value + [0,y,0]
}else
value; -
4 Replies
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Try changing this line:
y = amplitude*Math.cos(veloc*time)/Math.exp(decay*time);
to this:
y = amplitude*Math.cos(veloc*t)/Math.exp(decay*t);
Dan
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Hummmmm, yes! Thanks Dan!
That worked for the bounce at set time.Now, as predicted, I need the layer to stay off screen until the bounce kicks in.
I tried setting the last line to a value offscreen, but didn’t work…. 🙁
Erik
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Does the starting/maximum amplitude value put it off screen? If so, this should be all you need:
timeToStart = 2;
t = Math.max(time – timeToStart,0);
veloc = 10;
amplitude = 700;
decay = 5.0;
y = amplitude*Math.cos(veloc*t)/Math.exp(decay*t);
value + [0,y,0]Dan
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Yes, indeed!
What a cleanup in the code, huh ? 🙂 NICE!
All I needed was the timetostart line…Thanks a lot, Dan. You ARE the one! 😀
Erik
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