This SVG example illustrates how to apply a composite filter.

CompositeFilter.svg

<svg width="400" height="200" xmlns="http://www.w3.org/2000/svg">
  <filter id="idCompositeFilter">
    <feOffset in="SourceGraphic" dx="50" dy="0" result="imgOffset"/>
    <feComposite in="SourceGraphic" in2="imgOffset" operator="in" result="imgComp"/>
  </filter>
  <!-- Original Version -->
  <circle cx="100" cy="100" r="85" fill="coral" stroke="tan" stroke-width="10"></circle>
  <!-- Filtered Version -->
  <g style="filter: url(#idCompositeFilter)" transform="translate(200, 0)">
    <circle cx="100" cy="100" r="85" fill="coral" stroke="tan" stroke-width="10"></circle>
  </g>
</svg>

Output