This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The in2 read-only property of the SVGFEDisplacementMapElement interface reflects the in2 attribute of the given <feDisplacementMap> element.
An SVGAnimatedString object.
In this example, two <feDisplacementMap> elements are defined in a filter, each with a different in2 attribute.
<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
<defs>
<filter id="filter1">
<!-- First Displacement Map -->
<feDisplacementMap in="SourceGraphic" in2="BackgroundImage" scale="20">
<feFuncR type="table" tableValues="0 1" />
</feDisplacementMap>
<!-- Second Displacement Map -->
<feDisplacementMap in="SourceGraphic" in2="BackgroundImage" scale="30">
<feFuncR type="table" tableValues="0.5 1" />
</feDisplacementMap>
</filter>
</defs>
<rect
x="20"
y="20"
width="100"
height="100"
fill="red"
filter="url(#filter1)" />
<circle cx="100" cy="100" r="50" fill="blue" filter="url(#filter1)" />
</svg>
We can access the in2 attribute:
const displacementMaps = document.querySelectorAll("feDisplacementMap");
console.log(displacementMaps[0].getAttribute("in2")); // Output: "BackgroundImage"
console.log(displacementMaps[1].getAttribute("in2")); // Output: "BackgroundImage"
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
in2 |
5 | 12 | 3 | ≤12.1 | 6 | 18 | 4 | ≤12.1 | 6 | 1.0 | 4.4 | 6 |
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https://developer.mozilla.org/en-US/docs/Web/API/SVGFEDisplacementMapElement/in2