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
>
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--
Rafael Gaitán Linares
Instituto de Automática e Informática Industrial http://www.ai2.upv.es
Ciudad Politécnica de la Innovación
Universidad Politécnica de Valencia
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