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Checkbox Controlled Opacity Easing
Long time lurker-first time poster. I really need some help here…
have a client project with 19 Videos. Each video is highlighting 3 separate qualities in their product. We have called them:
– F&F
– MCL
– IEWhen one or more of these attributes is displayed on screen, a text changes from a 0% opacity to 100%. They are linked to a Opacity controller for each individual piece of text and each controller is linked to a MASTER CONTROLLER with 3 check boxes. The goal here is to set only three different keyframes… keep things tidy…. 19 freakin’ videos… HA! Hopefully this is painted a decent picture for you guys.
MY ISSUE: All of the “mechanism” is working perfectly. The keyframes on the check boxes all work and control things properly BUT i would like to EASE in and out of the opacity change, rather than the “nature” of a check box being on or off… I am totally at a loss on how to make this happen.
Let me know if I can supply any additional information to help…
if(thisComp.layer("Master Controller").effect("F&F")("Checkbox")==1) 100 else 0; -
5 Replies
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Try this:
fadeTime = .5;
cb = thisComp.layer("Master Controller").effect("F&F")("Checkbox");
if (cb.numKeys > 0){
n = cb.nearestKey(time).index;
if (cb.key(n).time > time) n--;
if (n >0){
t = time - cb.key(n).time;
if (cb.key(n).value > 0)
ease(t,0,fadeTime,0,100)
else
ease(t,0,fadeTime,100,0);
}else{
0
}
}else
if (cb.value > 0) 100 else 0
It does assume that the first checkbox keyframe is an on keyframe and that they alternate thereafter.
Dan
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THIS TOTALLY WORKS! Thanks sooooo much. Lifesaver!
Is there a way to alter the code so it doesn’t assume the first keyframe is “ON”?
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This should let the first keyframe be on or off, but they still need to alternate:
fadeTime = .5;
cb = thisComp.layer("Master Controller").effect("F&F")("Checkbox");
if (cb.numKeys > 0){
n = cb.nearestKey(time).index;
if (cb.key(n).time > time) n--;
if (n >0){
t = time - cb.key(n).time;
if (cb.key(n).value > 0)
ease(t,0,fadeTime,0,100)
else
ease(t,0,fadeTime,100,0);
}else{
if (cb.key(1).value > 0) 0 else 100;
}
}else
if (cb.value > 0) 100 else 0
Dan
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Seriously, thanks so much. You just saved me about 6 hours of setting keyframes.
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You’re a legend Dan.
You’re so helpful on this forum. Literally every I click on for help, you’re there with the answer.
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