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Fade In/Out & Opacity Expression
So I have two layers:
Layer 1: text
Layer 2: shape layer(text box)On Layer 2 I’ve added this expression to its opacity to tell the text box to disappear in the event that there is no text:
thisComp.layer(1).text.sourceText.length>0?75:0
I also want to add this expression to Layer 2 to tell the text box to fade in and out:
fadeInTime = .5;
fadeOutTime = .5;Math.min(linear(time,inPoint,inPoint + fadeInTime,0,75),linear(time,outPoint – fadeOutTime,outPoint,75,0))
HOW CAN I USE BOTH EXPRESSIONS ON THE OPACITY OF THE SAME LAYER, SO I CAN HAVE THE TEXT BOX FADE IN AND OUT AND ALSO NOT APPEAR WHEN THERE’S NO TEXT?
JAH
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6 Replies
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Something like this should work:
fadeInTime = .5;
fadeOutTime = .5;if (thisComp.layer(1).text.sourceText.length>0){
if (time < (inPoint+outPoint)/2)
linear(time,inPoint,inPoint+fadeInTime,0,75)
else
linear(time,outPoint-fadeOutTime,outPoint,75,0);
}else
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Dan
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I’ll see if this works and I’ll let you know. Thanks for responding so fast.
JAH
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It worked perfectly, thanks again!
JAH
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How can I loop this? I get the fade in and out, but I want it to loop on and off throughout.
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Something like this maybe:
fadeInTime = .5;
fadeOutTime = .5;
minVal = 0;
maxVal = 75;
if (thisComp.layer(1).text.sourceText.length>0){
t = (time-inPoint)%(fadeInTime+fadeOutTime);
if (t < fadeInTime)
ease(t,0,fadeInTime,minVal,maxVal)
else
ease(t,fadeInTime,fadeInTime+fadeOutTime,maxVal,minVal);
}else
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Dan
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yep! That totally worked. Thanks
What about if I wanted to show something like this.
When it fades out have a new piece of text come in. So the user story would be that a customers airplane Gate Changed from say B5 to D10 and I want to have it flash/fade back in forth between the new and old gate?
thanks
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