feGaussianBlur-alpha-01-ref.svg

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<!--

     Any copyright is dedicated to the Public Domain.

     http://creativecommons.org/publicdomain/zero/1.0/

-->

<svg xmlns="http://www.w3.org/2000/svg">

  <title>SourceAlpha pseudo input reference</title>

  <defs>

    <filter id="blur">

      <feGaussianBlur in="SourceGraphic" stdDeviation="2"/>

    </filter>

  </defs>

  <g fill-opacity="0.6" stroke="black" fill="black" stroke-width="3" filter="url(#blur)">

    <circle cx="98" cy="85" r="25"/>

    <circle cx="80" cy="110" r="25"/>

    <circle cx="116" cy="110" r="25"/>

  </g>

</svg>