<html>
<head>
<base href="https://bugs.webkit.org/" />
</head>
<body><span class="vcard"><a class="email" href="mailto:simon.fraser@apple.com" title="Simon Fraser (smfr) <simon.fraser@apple.com>"> <span class="fn">Simon Fraser (smfr)</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Compositing layer is too large when inner element has a blur that is within bounds"
href="https://bugs.webkit.org/show_bug.cgi?id=155288">bug 155288</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>INVALID
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Compositing layer is too large when inner element has a blur that is within bounds"
href="https://bugs.webkit.org/show_bug.cgi?id=155288#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Compositing layer is too large when inner element has a blur that is within bounds"
href="https://bugs.webkit.org/show_bug.cgi?id=155288">bug 155288</a>
from <span class="vcard"><a class="email" href="mailto:simon.fraser@apple.com" title="Simon Fraser (smfr) <simon.fraser@apple.com>"> <span class="fn">Simon Fraser (smfr)</span></a>
</span></b>
<pre>To summarize your test case:
First square: filter: blur(10px) extends the 80x80 circle by a factor of 10 * (3 * 1.87997127 / 2) = 28px on each side, so the resulting layer size is correct.
Second square: filter is composited, and extends the 100x100 container now by 28px per side, hence the 156x156.
Third square: filters apply after overflow:hidden, so it's clipped, then blurred.
Fourth square: filters apply after rect clipping, so it's clipped, then blurred.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>