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Animating SVG's fill-opacity

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Go to solution Solved by Diaco,

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This thread was started before GSAP 3 was released. Some information, especially the syntax, may be out of date for GSAP 3. Please see the GSAP 3 migration guide and release notes for more information about how to update the code to GSAP 3's syntax. 

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Instead of animating the opacity, it seems to wait until the tween is over and then instantly jumps to the final opacity. Any thoughts on what I might be doing wrong?

See the Pen JeDLo by anon (@anon) on CodePen

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  • Solution

Hi dxc  :)


Since there isn't the "fill-opacity" at first  , you should create that attr , and then tween that ;

try this :

var moon = document.getElementById("moon");
TweenLite.to(moon, 1, {attr:{"fill-opacity":.5}});

or add that attr to svg path tag in html :

<path id="moon" fill="#9C2726"  fill-opacity=1 ..../>
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You, Diaco, are the best. 

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  • 3 months later...
  • 1 month later...

As a follow up I'm finding that even though I declare 'fill' in the attributes this same thing is happening. I can't animate the fill (using AttributePlugin) from one colour to another. It just jumps to it at the end of the tween.


Any ideas?

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Ok I just read on another post that I don't need to use the AttributePlugin. D'oh.

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  • 3 years later...

For (my own) future reference, here's what works, showing that a circle's radius needs to be tweened within the attr property but stroke-width, stroke-opacity and fill-opacity (for example) don't:


<circle cx="75" cy="130" r="0" id="wave"/>
var tl = new TimelineMax({repeat:-1});
tl.to("#wave", 1, {attr:{r:100}, 'stroke-opacity': 0, 'stroke-width': 5, 'fill-opacity': 0});


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