Hi Paul, Thanks for your response.
I am using OpenSceneGraph through Delta3D.1.5 (it uses OSG.1.2), therefore using osgProducer instead of osgViewer. Maybe I can force the running of GLObjectsVisitor. I will read osgViewer's code and try to do it by myself. I don't think that this could be a RAM problem becasue the workaround I'm currently using to avoid these workload problem is the following: when I launch my application, the first thing I do is to turn the camera's heading from 0º to 360º. When the camera points for the first time to one of these objects, the application freezes as said, but after the complete turn is done (that is, I have rendered all the objects) I can look at anywhere without experimenting anymore freezes. I guess that a RAM problem would produce more swappings along the execution, but the freeze is only experimented the first time the object is visited. Regards, Emilio Lozano. 2008/2/13, Paul Martz <[EMAIL PROTECTED]>: > > If you are using osgViewer, it should run the GLObjectsVisitor for you, > which should create all the OpenGL objects your entire scene graph requires. > You can set a breakpoint in the GLObjectsVisitor to ensure this is > happening. > > If the GLObjectsVisitor is being run and appears to be doing its job, then > you still might experience the issue you describe if you have simply > exhausted physical RAM on the graphics card and need to swap OpenGL objects > in and out as needed. > > Paul Martz > *Skew Matrix Software LLC* > http://www.skew-matrix.com > 303 859 9466 > > > > > ------------------------------ > *From:* [EMAIL PROTECTED] [mailto: > [EMAIL PROTECTED] *On Behalf Of *Emilio Lozano > *Sent:* Wednesday, February 13, 2008 11:06 AM > *To:* [email protected] > *Subject:* [osg-users] Extra workload during first render of a model > > Hi all, > > In my application I load all the models I need before start to render the > scene. These models are loaded from flt files (heavy models with a lot of > data). These objects are spread along the scene, I mean, not all of them are > watched at the same time. When I move the camera around, the problem arises > when it's the time to render one of the models for the first time, the > application gets frozen for a couple of seconds. I guess that although the > model is yet loaded, when it is the first render of the model there are some > work that is done inside OSG (for example, I read in OpenSceneGraph Quick > Start Guide that during the first render pass, OSG creates an OpenGL texture > object to store the image data contained in osg::Texture2D). > > I wonder if it's a way to do all the job needed before the first render of > the object, to achieve a continuous execution of my application. > > Thanks in advance. > > Emilio Lozano. > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >
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