exponential blinking

[Dan Ebberts]

That’s a tricky one. I think it’s going to be something like this:


sf = [0,11,21,30,38,45,51,56,60,63,65,68,72,77,83,90,98,107,117,
128,138,147,155,162,168,173,177,180,182,185,189,194,200,207,215,224];
on = [10,9,8,7,6,5,4,3,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,3,4,5,6,7,8,9];

f = timeToFrames(time-inPoint)%234;
i = 0;
if (f >= sf[sf.length-1]){
i = sf.length-1;
}else{
i = 0;
while (sf[i] <= f) i++;
i--;
}
d = f - sf[i];
if (d >= on[i]) 0 else 100


Dan

[Marc Rühl]

I didn’t expected someone to answer during the christmas holidays, so thank you a lot for this. Unfortunately the script doesn’t work like expected.
My javascript-knowledge is too bad to understand everything in this expression, otherwise I could try to adjust it.

I expected something like a halfway simple solution, which is just a little bit to complicated for someone like me.
Would it be easier if it don’t need to be exakt 10, 9, 8, 7 etc.? just a blinking, which gets faster and faster, without exakt numbers? or if a slider is involved?

I’m really really sorry to bother you again, especially on the holidays.
By the way merry christmas and again thank you a lot.

Marc

http://www.schwarzgrau.com

[Dan Ebberts]

Speed control is not something that is easy to do with expressions. This will give you some background:

https://www.motionscript.com/articles/speed-control.html

Dan

[Marc Rühl]

Thank you a lot Dan!

Marc

http://www.schwarzgrau.com

[Marc Rühl]

I tried it again and found a solution. Maybe it’s usefull for someone else:

I created a black solid and attached a slider to it. The value of the slider is keyframed from 10 (at the beginning) to 2 at the end.
Then I created 11 keyframes on the transparency. Except of the 10th keyframe, which got the value of 100%, all the keyframes got 0% as value.

Now I used this expression on the transparency.

pausectrl = effect("Slider Control")("Slider");
loopOut(type = "cycle", numKeyframes = pausectrl)

http://www.schwarzgrau.com