michael@0: <!--
michael@0:      Any copyright is dedicated to the Public Domain.
michael@0:      http://creativecommons.org/publicdomain/zero/1.0/
michael@0: -->
michael@0: <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
michael@0:   <title>Testcase for objectBoundingBox with fePointLight</title>
michael@0:   <!-- From https://bugzilla.mozilla.org/show_bug.cgi?id=544742 -->
michael@0: 
michael@0:   <defs>
michael@0:     <filter id="light" primitiveUnits="objectBoundingBox">
michael@0:       <feSpecularLighting lighting-color="blue" surfaceScale="5" specularConstant="10" specularExponent="6">
michael@0:         <!-- Note: for z  the scalefactor is  31,622776601683793319988935444327
michael@0:                      sqrt(bbox.width*bbox.width + bbox.height*bbox.height)/sqrt(2) -->
michael@0:         <fePointLight x="0.75" y="1.5" z="-0.15811388300841896659994467722167"/>
michael@0:       </feSpecularLighting>
michael@0:       <feComposite operator="in" in2="SourceGraphic"/>
michael@0:     </filter>
michael@0:   </defs>
michael@0: 
michael@0:   <rect x="20" y="20" width="40" height="20" filter="url(#light)" fill="black" stroke="none" />
michael@0: 
michael@0: </svg>
michael@0: