Thank you very much for fixing it. I was pretty tired (but happy) after struggling to get background filters working at all, so I should&#39;ve thought about it more before asking. It makes sense though. For implementing blurs, the filter has to be invoked for pixels outside the original shape.<div>
<br><div class="gmail_quote">On Sat, Mar 9, 2013 at 11:56 AM, Ivan Louette <span dir="ltr">&lt;<a href="mailto:ivan_louette@...48..." target="_blank">ivan_louette@...48...</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div style="font-size:12pt;font-family:arial,helvetica,sans-serif">Hi Yale,<br><br>You simply forgot to add a Composite &quot;In&quot; connected to the Source image at the end of the filter like in the joined file.<br>
<br>ivan<br><div><span><br></span></div><div><br></div>  <div style="font-family:arial,helvetica,sans-serif;font-size:12pt"> <div style="font-family:times new roman,new york,times,serif;font-size:12pt"> <div dir="ltr"> <font face="Arial"> <hr size="1">
  <b><span style="font-weight:bold">De :</span></b> Yale Zhang &lt;<a href="mailto:yzhang1985@...400..." target="_blank">yzhang1985@...400...</a>&gt;<br> <b><span style="font-weight:bold">À :</span></b> <a href="mailto:inkscape-devel@lists.sourceforge.net" target="_blank">inkscape-devel@lists.sourceforge.net</a> <br>
 <b><span style="font-weight:bold">Envoyé le :</span></b> Samedi 9 mars 2013 19h43<br> <b><span style="font-weight:bold">Objet :</span></b> [Inkscape-devel] filters with background image as source not rendering correctly and
 lack of support in browsers<br> </font> </div><div><div class="h5"> <br><div>Hi, I created a filter that applies a displacement map to the background image to simulate effects like water caustics or the warping you see around fires, but it doesn&#39;t render how I want it to.<div>
<br></div><div>The filter is being applied to the entire bounding box of the path instead of just inside the path. I tried it in Opera, which does support using the background image as a filter source and it shows the same effect. Is this correct behavior?</div>

<div><br></div><div>I&#39;ve attached an example of my problem. It&#39;s a star over a checkboard, but you should only see the checkerboard distorted inside the star.</div><div><br></div><div>Also, could someone comment on why so few browsers (I only know Opera) support the background image as a filter source? To me, it doesn&#39;t seem any more complicated than just a regular transparency.</div>

<div><br></div><div>Thanks,</div><div>Yale</div><div><br></div>
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