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blink / stutter at in point
Is there a simple expression for having a layer’s opacity be kind of blinky stutter, like it’s stuttering to full opacity? Kind of like those sci-fi interfaces when they first come on sort of stutter and then are fully on. I wanted to have it driven by the IN point so I can stagger the layers around to animate them on.
Thanks!
Jason Jantzen
vimeo.com/jasonj -
8 Replies
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Play around with this:
dur = 3;
freq = 12
t = time - inPoint;
if (t > dur){
100
}else{
w = wiggle(freq,100);
if (w < 100) 0 else 100;
}
Dan
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cool! that is nearly perfect Dan, and I actually sort of understand what’s going on for a change. I have no idea, however, how to introduce a random seed into the expression. Can you help me there? I was thinking maybe random frequency, and maybe even random duration, but based on the value parameters you set up there.
Jason Jantzen
vimeo.com/jasonj -
Just add something like this at the top of the expression:
seedRandom(999,true);
Dan
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Perfect! Thanks again Dan. I’m animating on a map that’s vector looking, so I thought it would look cool to kind of blink on like a console graphic or something.
Jason Jantzen
vimeo.com/jasonj -
actually, I think I’m putting it in the wrong place, if I put it under the t=time line then everything animates the same as usual. If I put it at the bottom it doesn’t work at all. Is there some syntax I’m missing?
Jason Jantzen
vimeo.com/jasonj -
sorry, I did put it at the top, and still everything blinks in sync. forgot to mention that.
Jason Jantzen
vimeo.com/jasonj -
It should already be different for each layer without the seedRandom(). If you want use seedRandom(), you’ll need to give each layer a unique seed value. You could try seedRandom(index,true).
Dan
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Oh right, it is already random. Sorry about that. I had all my layers staggered so I couldn’t tell at first.
Jason Jantzen
vimeo.com/jasonj
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