Hmmm. I'm using Rafa's code, and am getting the "failed to create pbuffer" message each time. Is there some initialization that must preceed this to get it to work? Thanks, Phil
________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rafa Gaitan Sent: Sunday, April 27, 2008 4:53 PM To: [EMAIL PROTECTED]; OpenSceneGraph Users Subject: Re: [osg-users] Off-screen rendering Hi Philip and xbee We have this code and is working for us: osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits; traits->x =x; traits->y = y; traits->width = width; traits->height = height; traits->windowDecoration = false; traits->doubleBuffer = false; traits->sharedContext = 0; traits->pbuffer = true; osg::GraphicsContext* _gc= osg::GraphicsContext::createGraphicsContext(traits.get()); if (!_gc) { osg::notify(osg::NOTICE)<<"Failed to create pbuffer, failing back to normal graphics window."<<std::endl; traits->pbuffer = false; _gc = osg::GraphicsContext::createGraphicsContext(traits.get()); } v->getCamera()->setGraphicsContext(_gc); v->getCamera()->setViewport(new osg::Viewport(x,y,width,height)); v is an osgViewer::Viewer. Hope this helps. On Sun, Apr 27, 2008 at 7:49 PM, xbee <[EMAIL PROTECTED]> wrote: Tessier, Philip a écrit : > My attempt to use createGraphicsContext() to create an off-screen > rendering context is failing. (It's returning NULL.) > > I'm using Win32. > > What am I missing? > > I have added the following to my code: > osg::GraphicsContext * GetOffscreenGraphicsContext( > unsigned a_tex_width, > unsigned a_tex_height > ) > { > osg::ref_ptr<osg::GraphicsContext::Traits> traits=new > osg::GraphicsContext::Traits; > > traits->width = a_tex_width; > traits->height = a_tex_height; > // traits->doubleBuffer = true; > traits->pbuffer = true; > > osg::ref_ptr<osg::GraphicsContext> > gc=osg::GraphicsContext::createGraphicsContext(traits.get()); > // TODO: Above returning NULL! > > return gc.get(); > } > > with the following to hook it in: > // Setup camera for off-screen rendering. > osg::ref_ptr<osg::GraphicsContext> gc= > GetOffscreenGraphicsContext( tex_width, tex_height); > camera->setGraphicsContext(gc.get()); > > Thanks, > Phil > Hi, Found any solution ? I've the same problem, I have a previous solution with Producer but I want to port my snapshot application to 2.4 release and I can't save any image without a viewer. Anyone have a solution ? Thanks -- _ /_/_ .'''. =O(X)))) ...' `. \_\ `. .''' `..' "Power corrupts. PowerPoint corrupts absolutely." My personnal (french) Websites: http://www.xbee.net and http://www.french-comics-zone.fr.st _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Rafael Gaitán Linares Instituto de Automática e Informática Industrial http://www.ai2.upv.es Ciudad Politécnica de la Innovación Universidad Politécnica de Valencia
_______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
