Hi John, I thought some of this sounded a little familiar. I found a discussion not too long relative to this. See the thread entitled "Rendering to a image file". Here's a link to the specific post:
http://thread.gmane.org/gmane.comp.graphics.openscenegraph.user/28011/focus=28014 What Robert suggests (and as Jean-Sebastien suggests) is using the final draw callback to make sure that the extra OpenGL rendering is done before taking the screen capture. chuck > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:osg-users- > [EMAIL PROTECTED] On Behalf Of Jean-Sébastien Guay > Sent: Wednesday, June 25, 2008 2:14 PM > To: OpenSceneGraph Users > Subject: Re: [osg-users] Camera PostDraw Callback w/ OpenGL calls. > > Hi John, > > > I have a camera postdraw callback on a View's camera. I want to do some > > OpenGL drawing via glBegin()/glEnd() and then take a screen capture. The > > screen capture works but the custom drawing isn't in there. It's on the > > screen though. I try to do glDrawBuffer( GL_BACK ) to force it into the > > same buffer as the camera, but no good. Any ideas? > > Wow, you're really putting osgViewer through its paces aren't you :-) > > I've never tried doing what you're doing, so I can only suggest that you > try some other way of doing your OpenGL drawing. There are a few > different ways of doing OpenGL inside OSG, some may not work in given > usage models... > > Have you tried a custom drawable? Possibly putting the custom drawable > on a geode that is child of a postdraw camera, and then using the > finaldraw callback on your main camera instead of the postdraw callback > to take your screen capture... > > Sorry I can't be of more help. > > J-S > -- > ______________________________________________________ > Jean-Sebastien Guay [EMAIL PROTECTED] > 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 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
