<!-- Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ --> <svg width="100%" height="100%" viewBox="0 0 480 360" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <title>Reference for objectBoundingBox with fePointLight</title> <!-- From https://bugzilla.mozilla.org/show_bug.cgi?id=619992 --> <defs> <filter id="f" primitiveUnits="objectBoundingBox"> <feSpecularLighting lighting-color="blue" surfaceScale="5" specularConstant="10" specularExponent="6"> <fePointLight x="0.875" y="0.875" z="-0.0625"/> </feSpecularLighting> </filter> </defs> <g transform="translate(50 50)"> <rect x="-40" y="-40" width="80" height="80" filter="url(#f)" fill="none"/> </g> </svg>