<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p.MsoPlainText, li.MsoPlainText, div.MsoPlainText
{mso-style-priority:99;
mso-style-link:"Plain Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.PlainTextChar
{mso-style-name:"Plain Text Char";
mso-style-priority:99;
mso-style-link:"Plain Text";
font-family:"Calibri",sans-serif;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoPlainText">Hi Robert,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Unfortunately the fix didn't address the crash I am encountering. The issue of the dynamic cast in objectDeleted() (\openscenegraph\src\osgUtil\CullVisitor.cpp) failing remains...<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"> virtual void objectDeleted(void* object)<o:p></o:p></p>
<p class="MsoPlainText"> {<o:p></o:p></p>
<p class="MsoPlainText"> osg::Referenced* ref = reinterpret_cast<osg::Referenced*>(object);<o:p></o:p></p>
<p class="MsoPlainText"><span style="color:red"> osgUtil::CullVisitor* cv = dynamic_cast<osgUtil::CullVisitor*>(ref);<o:p></o:p></span></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"> OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"> RenderStageMap::iterator itr = _renderStageMap.find(cv);<o:p></o:p></p>
<p class="MsoPlainText"> if (itr!=_renderStageMap.end())<o:p></o:p></p>
<p class="MsoPlainText"> {<o:p></o:p></p>
<p class="MsoPlainText"> _renderStageMap.erase(itr);<o:p></o:p></p>
<p class="MsoPlainText"> }<o:p></o:p></p>
<p class="MsoPlainText"> }<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">I was going to define our object that inherits from the CullVisitor as an osg::ref_ptr. Perhaps doing so will delay the freeing of the CullVisitor object long enough within the CullVisitor destructor so that the problematic dynamic
cast will succeed. I am open to any other suggestions as well. I may have to resort to just creating a small example program that reproduces the issue.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Thanks,<o:p></o:p></p>
<p class="MsoPlainText">Rick<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">-----Original Message-----<br>
From: Rick Irons <br>
Sent: Wednesday, May 25, 2016 5:56 AM<br>
To: OpenSceneGraph Users <osg-users@lists.openscenegraph.org><br>
Subject: Re: [osg-users] CullVisitor object not getting properly deleted</p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Hi Robert,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Thanks for the update. I will try out the fix.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Rick<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">> On May 24, 2016, at 3:53 PM, Robert Osfield <<a href="mailto:robert.osfield@gmail.com"><span style="color:windowtext;text-decoration:none">robert.osfield@gmail.com</span></a>> wrote:<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Hi Rick,<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> After a preplexing day looking at how the osgUtiil::CullVisitor,
<o:p></o:p></p>
<p class="MsoPlainText">> osg::Camera and RenderStageCache were all interacting via the
<o:p></o:p></p>
<p class="MsoPlainText">> osg::Observer system I finally fixed the problem with the crash that<o:p></o:p></p>
<p class="MsoPlainText">> I've see with the osgoit and osgprerender examples. As the crash<o:p></o:p></p>
<p class="MsoPlainText">> looks similar to what you saw there is reasonable chance that the
<o:p></o:p></p>
<p class="MsoPlainText">> changes should work for you too.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> I have checked my fix into master and OpenSceneGraph-3.4.<o:p></o:p></p>
<p class="MsoPlainText">> <o:p></o:p></p>
<p class="MsoPlainText">> Robert.<o:p></o:p></p>
<p class="MsoPlainText">> _______________________________________________<o:p></o:p></p>
<p class="MsoPlainText">> osg-users mailing list<o:p></o:p></p>
<p class="MsoPlainText">> <a href="mailto:osg-users@lists.openscenegraph.org"><span style="color:windowtext;text-decoration:none">osg-users@lists.openscenegraph.org</span></a><o:p></o:p></p>
<p class="MsoPlainText">> <a href="http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph">
<span style="color:windowtext;text-decoration:none">http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph</span></a>.<o:p></o:p></p>
<p class="MsoPlainText">> org<o:p></o:p></p>
</div>
</body>
</html>