Hi, I am not sure if this is the same problem I came accorss many years ago when we were developing our Java wrappers of OSG objects. We also has issues that were caused by the finalizer deleting OSG peer objects from its own thread. To get around the problem we simply changed the code in our finalize method to simply queue the deletion opertion. This queue is then processed, and the delete of the native osg object is done on our main update / render thread.
It sounds like the issue you are having is trying to delete OpenGL obejcts from a different thread that the one used to create them (which will always be the case if it is done from the finalizer). Hope this helps. Cheers, Brad -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Eron Steger Sent: Friday, 6 July 2007 12:19 AM To: osg users Subject: [osg-users] Trouble with OpenGL context from another thread (java) Hello, I've got a Java program which during an object's finalizer deletes an osg Viewer object. From what I understand, this may be occurring a different thread than the thread the viewer was originally created in. Upon deletion of the viewer, I get the following error: Windows Error #170: [Screen #1] GraphicsWindowWin32::makeCurrentImplementation() - Unable to set current OpenGL rendering context. Reason: The requested resource is in use. The callstack is: osgViewer::Viewer::~Viewer -> osg::GraphicsContext::close -> osg::GraphicsContext::makeCurrent -> osgViewer::GraphicsWindowWin32::makeCurrentImplementation From the look of it, another thread must currently has the opengl context current. However, the main thread isn't calling 'update' or something like that at this point, and is basically complete. I'd like to know if there is a way to do this properly with multiple threads? Is OpenSceneGraph careful with how it uses an OpenGL context such that it can be shared by multiple threads, or is it just assumed that all such work is in a single thread? - Eron _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/ DISCLAIMER:--------------------------------------------------------------------------- This Email may contain confidential and/or privileged information and is intended solely for the addressee(s) named. If you have received this information in error, or are advised that you have been posted this Email by accident, please notify the sender by return Email, do not redistribute it, delete the Email and keep no copies. -------------------------------------------------------------------------------------- _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
