Robert, Setting the viewer.realize to one thread per camera got me threaded again. As for the SLI issue, still tracking this down. It might be related to a cameranode ...(this is where I'm at in debugging this).
Thanks again for the feedback. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Osfield Sent: Friday, June 23, 2006 9:48 AM To: osg users Subject: Re: [osg-users] only 1 processor and SLI issue On 6/23/06, Vincent <[EMAIL PROTECTED]> wrote: > Hi Robert, > > Yes, using SLI with a pair of 7800s. I'm still not sure what would mess up > the viewport where I need to call this every frame to keep SLI on.. (I > actually call glviewport directly to keep it on). Well if its SLI then there is nothing the OSG can do to multi-thread things as is only targetting a single graphics context and its the driver doing the splitting. As for the viewport, you should never need to set this with an OSG app as its apply its own viewport on every new frame. I haven't got a clue where or why you have your own glViewport, let alone why you might find it neccessary. > If we use GLUT to render our stuff, we don't have SLI issues and things are > spread over multiple threads, but to do this conversion right would take > some time, and I would like to stick with producer for its capabilities. Umm... GLUT is single threaded, so if you are finding more threads being used then its all happening down in the OpenGL driver. For single graphics context Producer doesn't offer a lot of GLUT, its real strength is proper multiple threaded-multiple graphics context system, on a single headed system it doesn't differentiate itself so much - other than being configurable, have event handler properly threaded out.... ok so there its lots of goodies still there for real-time :-) > I'll try the CVS version.. With SLI it'll make no difference, you arn't running with multiple graphics contexts. Robert. _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/ _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
