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<feMergeNode>
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The <feMergeNode>SVG takes the result of another filter to be processed by its parent <feMerge>
Categories None Permitted content Any number of the following elements, in any order:<animate><set>
html
<svg
width="200"
height="200"
xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink">
<filter id="feOffset" x="-40" y="-20" width="100" height="200">
<feOffset in="SourceGraphic" dx="60" dy="60" />
<feGaussianBlur in="SourceGraphic" stdDeviation="5" result="blur2" />
<feMerge>
<feMergeNode in="blur2" />
<feMergeNode in="SourceGraphic" />
</feMerge>
</filter>
<rect
x="40"
y="40"
width="100"
height="100"
stroke="black"
fill="green"
filter="url(#feOffset)" />
<rect x="40" y="40" width="100" height="100" stroke="black" fill="green" />
</svg>