[osg-users] porting from osg-3.4.0 to osg-3.6.3

[Robert Osfield]

Hi Herman,

>From  the details provided there isn't anything we suggest, the only
thing we can do is suggest that you provide more information.

The first thing would be to post a stack trace, at least then we might
have an idea what bit of code is failing and with what error.

Robert.
On Sun, 7 Oct 2018 at 18:21, Herman Varma <hermanvarma at eastlink.ca> wrote:
>
> Hi Robert
>
> I followed your advice and used the Simple app in VTP with Debug statements.
> I compared the debug statements wit those osg-3.4.0.
>
> I was able to track it down to this section
>
>       while (!viewer->done())
>         {
>                 vtGetScene()->DoUpdate();               // calls
> viewer::frame
>         }
> In 3.4.0 it executes and in 3.6.3 it bombs on
>
> vtGetScene()->DoUpdate();
>
>
> DoUpdate() is defined by vs2017 as void VTScene::DoUpdate() backward
> compatibility
>
> Also
> viewer->done() value has a bool value of 0 at the bomb instant.
>
>
> Full code below
>
> int main(int argc, char ** argv)
> {
> #if WIN32 && defined(_MSC_VER) && VTDEBUG
>         // sometimes, MSVC seems to need to be told to show unfreed memory
> on exit
>         _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);
> #endif
>
>         // Log messages to make troubleshooting easier
>         VTSTARTLOG("debug.txt");
>         VTLOG("osgViewerSimple\n");
>
>         // Make a scene and a viewer:
>         vtGetScene()->Init(argc, argv);
>         osgViewer::Viewer *viewer = vtGetScene()->getViewer();
>
>         // Add a handler for GUI events.
>         osg::ref_ptr<vtOSGEventHandler> pHandler = new vtOSGEventHandler;
>         viewer->addEventHandler(pHandler);
>
>         // We must call realize to be certain that a display/context is set
> up.
>         viewer->realize();
>
>         // Tell our scene about OSG's context.
>
> vtGetScene()->SetGraphicsContext(viewer->getCamera()->getGraphicsContext());
>
>         // Only then can we safely get window size.
>         vtGetScene()->GetWindowSizeFromOSG();
>
>         printf("Creating the terrain..\n");
>         CreateScene();
>
>         printf("Running..\n");
>
>         VTLOG("Getscene Loop %d\n", (int)viewer->done());
>
>         while (!viewer->done())
>         {
>                 vtGetScene()->DoUpdate();               // calls
> viewer::frame
>         }
>
>         VTLOG("Done Updatescene.\n");
>
>         g_terrscene->CleanupScene();
>         delete g_terrscene;
>
>         vtGetScene()->Shutdown();
>
>         return 0;
> }
>
>
> Thanks
> ------------------------------
>
> Message: 2
> Date: Thu, 04 Oct 2018 15:31:14 +0200
> From: "Herman Varma" <hermanvarma at eastlink.ca>
> To: osg-users at lists.openscenegraph.org
> Subject: Re: [osg-users] Problems porting from osg-3.4.0 to osg-3.6.0
> Message-ID: <1538659874.m2f.75036 at forum.openscenegraph.org>
> Content-Type: text/plain; charset=UTF-8
>
> Hi,
>
>
> I have upgraded the vtp code to osg 3.6.3
> Everything compiled and linked properly. However I still have some execution
> problems.
>
> I just want to check if  the code below is coded properly
>
> FQuat TransformExtension::GetOrient() const
> {
>         const osg::Matrix &xform = m_pTransform->getMatrix();
>         osg::Quat q;
>
> //      xform.get(q);
> // Replacing xform.get(q)
> // with
>         q = xform.getRotate();
>
>         return FQuat(q.x(), q.y(), q.z(), q.w());
> }
>
> ...
>
> Thank you!
>
> Cheers,
> Herman
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=75036#75036
>
>
>
>
>
>
>
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