[osg-users] OSG blocking on application exit.

Neil Hughes neil.hughes at luk.net
Tue Oct 2 03:56:28 PDT 2007

Nice one.
The only light I can shed on this is that there has been issues with the
various threading models that OSG claims to support. Recent conversation
(today's correspondance is a good example) indicates that all is not great
in multithreaded/multicamera world!
As far as we are concerned for the moment I'm assuming that we will have a
singlethreaded universe. This may well change, however, should we decide to
be clever with reflections and set up a seperate thread for handling the
texture generation of this. However, that's a little way down the road :-)
I note that I don't think this used to happen under OSG1.2 - although I may
be wrong. 

-----Original Message-----
From: Chris Denham [mailto:c.m.denham at gmail.com]
Sent: Oct 02, 2007 09:54
To: osg-users at lists.openscenegraph.org
Subject: [osg-users] OSG blocking on application exit.

Hi OSGers,
I'm a bit of a newbie to OSG, but I've been developing an application based
on the osgviewerMFC example in OSG2.0 (built using VS2005).
The problem that I discovered with my application (and the unmodified
example) is that once I have loaded in a model (e.g. cow.osg or glider.osg)
the program does not terminate properly. It seems to close, but remains as a
process consuming CPU resource until I manually terminate it using task
As "a shot in the dark" I guessed the problem might be something to do with
threads, so I added the line:
just before the call to:
This seemed to cure the problem, so just thought someone might find this
info useful. 
Why does this problem occur? 
What have I lost by setting single threaded mode? 
And.. has it been fixed in later versions?
Chris D.


This message (including any attachments) is confidential and may be legally
privileged. If you are not the intended recipient, you should not disclose, 
copy or use any part of it - please delete all copies immediately and 
notify the Logicom Email Helpdesk on +44 (0)1908 663 848.

Any information, statements or opinions contained in this message (including
any attachments) are given by the author. They are not given on behalf of 
Logicom unless subsequently confirmed by an individual other than the author 
who is duly authorised to represent Logicom.

Logicom Computer Services is registered in England and Wales 
Registered Office: 1, Portland Drive, Willen, Milton Keynes, MK15 9JW
Company Registration Number: 2014157 (Place of Registration: Cardiff)
VAT Number: GB 449 3106 49

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openscenegraph.org/pipermail/osg-users-openscenegraph.org/attachments/20071002/74287ca5/attachment-0003.htm>

More information about the osg-users mailing list