Fade out on every keyframe

Question

Another newbie question.Tried this expression on a layers opacity:d = Math.abs(time -transform.position.nearestKey(time).time);easeOut(d, 100, 0)The idea was to make the layers opacity go from 100% to 0 on every keyframe.What actually happens is the opacity goes down to 36% in the middle between two keyframes, then goes up to 100 again.

Dan Ebberts · Accepted Answer

Then I have to rephrase it...What I would like is that the layer should start every new keyframe with an opacity of 100%, and fade away to 0 right before it reaches the next keyframe. Which again starts att 100%...Try this:fade = 1; // fade durationn = 0;p = transform.position;if (p.numKeys > 0){ n = p.nearestKey(time).index; if (p.key(n).time <= time) n++;}if (n > p.numKeys) n = 0;if (n > 0){ t = p.key(n).time; ease(time,t-fade,t,100,0);}else 100Dan

Lars Renklint · Answer

Found this: http://library.creativecow.net/articles/ebberts_dan/ae6_exp.php

So if I knew that the keyframes where 1 sec apart this would do the trick

fade = .99;

hold =.01;;

t = time%(fade + hold + fade);

if(t < fade){

linear(t,0,fade,100,0)

}else if (t < (fade + hold)){

100

}else{

linear(t,fade+hold,fade+hold+fade,100,0)

}

Now I just need to figure out the math for calculating the time between keyframes

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