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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Some SVG filters result in bitmap corruption"
href="https://bugs.webkit.org/show_bug.cgi?id=137856#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Some SVG filters result in bitmap corruption"
href="https://bugs.webkit.org/show_bug.cgi?id=137856">bug 137856</a>
from <span class="vcard"><a class="email" href="mailto:sabouhallawa@apple.com" title="Said Abou-Hallawa <sabouhallawa@apple.com>"> <span class="fn">Said Abou-Hallawa</span></a>
</span></b>
<pre>I have found out that the problem is in calculating the absolutePaintRect of the feComposite filter when the operator is either 'in' or 'atop'. We were setting it to the absolutePaintRect of the background FilterEffect without clipping it to the maxEffectRect which we do with other non-arthimtaic operators.</pre>
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