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SVG feMerge and feMergeNode Elements

Definition and Usage

The SVG feMerge element is used to create image layers on top of each other.

Each feMerge element can have any number of feMergeNode sub-elements.

Example 1

Copy the following code into Notepad and save the file as "femerge_1.svg". Place the file in your Web directory:

<?xml version="1.0" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">

<svg width="100%" height="100%" version="1.1"
xmlns="http://www.w3.org/2000/svg">

<defs>
<filter id="test" filterUnits="objectBoundingBox"
x="0" y="0" width="1.5" height="4">

<feOffset result="Off1" dx="15" dy="20"/>
<feFlood style="flood-color:#ff0000;flood-opacity:0.8"/>
<feComposite in2="Off1" operator="in" result="C1"/>

<feOffset in="SourceGraphic" result="Off2" dx="30" dy="40"/>
<feFlood style="flood-color:#ff0000;flood-opacity:0.4"/>
<feComposite in2="Off2" operator="in" result="C2"/>

<feMerge>
  <feMergeNode in="C2"/>
  <feMergeNode in="C1"/>
  <feMergeNode in="SourceGraphic"/>
</feMerge>

</filter>
</defs>

<text x="30" y="100"
style="font:36px verdana bold;fill:blue;filter:url(#test)">
This is some text!</text>

</svg>

View example

Complete SVG Reference