Re: [osg-users] Stop back buffer swap during rendering traversals
Hi Michael, On Thu, Jul 15, 2010 at 2:53 PM, Michael Irby II mi...@wms.com wrote: Does anyone know how I could go about stopping the View from doing a back buffer swap during the rendering traversals. I am outfitting OSG into current rendering engine, but I need the OSG view to not swap the back buffer at the end of the rendering traversals. Is there something I need to override or derive from one of the view classes? Any suggestions would be appreciated. I know nothing at all about your app or how you do windows, but typically if users are grafting the OSG into an existing application you'd use the osgViewer::GraphicsWindowEmbedded class to trick the Viewer into not doing any graphics context operations, so allow it to work with API's like GLUT and SDL, or other single windows apps. See the osgviewerSDL and osgviewerGLUT examples. Robert ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Stop back buffer swap during rendering traversals
Hi Robert, We have a custom 2d and 3d rendering path, we are in the process of replacing the 3d path with OSG. I took a look at the GraphicsWindowEmbedded. We still want to have OSG handle 99% of the graphics context work, but just needed a way to stop the back buffer swap at the end of the renderingTraversals. I was able to implement the recommendation from Jean-Sébastien and it worked out great. Would there be any issues with using that solution? Thanks, Michael Irby -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=30083#30083 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Stop back buffer swap during rendering traversals
Hi, Does anyone know how I could go about stopping the View from doing a back buffer swap during the rendering traversals. I am outfitting OSG into current rendering engine, but I need the OSG view to not swap the back buffer at the end of the rendering traversals. Is there something I need to override or derive from one of the view classes? Any suggestions would be appreciated. Thank you! Cheers, Michael -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=30032#30032 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Stop back buffer swap during rendering traversals
Hi Michael, Does anyone know how I could go about stopping the View from doing a back buffer swap during the rendering traversals. I am outfitting OSG into current rendering engine, but I need the OSG view to not swap the back buffer at the end of the rendering traversals. Is there something I need to override or derive from one of the view classes? Any suggestions would be appreciated. Whenever I needed to do something special when the buffers are swapped (in your case it would be just not do it) I subclassed the GraphicsWindowWin32 class and overrode the swapBuffersImplementation() method to do whatever I wanted before calling the base class version. In your case you just wouldn't. Unfortunately if your app is cross-platform you need to subclass a few different classes and do the same thing in each one, but it's pretty easy. Then you just explicitly create that type of GraphicsWindow instead of calling osg::GraphicsContext::create() when creating your context. Hope this helps, J-S -- __ Jean-Sebastien Guayjean-sebastien.g...@cm-labs.com http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Stop back buffer swap during rendering traversals
Hi, Ah, sounds easy enough. I noticed if you call setupViewInWindow or setupViewOnSingleScreen the graphics context is created there. So would I just not call that method and then just do the graphics context, camera, and window setup manually? -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=30035#30035 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Stop back buffer swap during rendering traversals
Hi Michael, Ah, sounds easy enough. I noticed if you call setupViewInWindow or setupViewOnSingleScreen the graphics context is created there. So would I just not call that method and then just do the graphics context, camera, and window setup manually? Yes, exactly. You can take inspiration from (i.e. lift) that code of course :-) J-S -- __ Jean-Sebastien Guayjean-sebastien.g...@cm-labs.com http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Stop back buffer swap during rendering traversals
Hi, Excellent. Thanks for your swift response and help. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=30038#30038 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
