Hi, I'm having problems with rendering multiple views of a scene, consisting of a terrain with PagedLODs (generated using VPB), and various other models.
The problems that arise are missing textures in one or several viewports and sometimes corrupted vertex data as well. I have tested the following configurations: One CompositeViewer with multiple osgViewer::View objects. This renders fine when only a single View is attached to the CompositeViewer. When a second View is added, it will render the terrain without textures at particular parts of the terrain surface. On occasion the polygons are distorted as well. The order in which the View-objects are added to the CompositeViewer affects the result: The View that is added first to the CompositeViewer will work fine. The scene data is the same for all views. The same problems occur when using multiple osgViewer::Viewer objects instead of a CompositeViewer. I have tried to use "getCamera()->getGraphicsContext()->makeCurrent();" before frame() is called for each Viewer. I have checked that the context ID's varies among the Views. Initially the windows were based on wxWidgets, using a canvas class (inheriting from wxGLCanvas and GraphicsWindow) as graphics contexts. But the problems are the same when I simply use the Viewer's "setUpViewInWindow(.)". However, what does work is setting/creating the graphics contexts like: unsigned int contextID = osg::GraphicsContext::createNewContextID(); osg::GraphicsContext* gc = osg::GraphicsContext::getOrCreateCompileContext(contextID); m_pView->getCamera()->setGraphicsContext(gc); Does this make any sense? Since we would like to render the views inside of wxFrame-derived windows, could a canvas class (inheriting from wxGLCanvas and GraphicsWindow) be created that does the same as "getOrCreateCompileContext"? Or is there something I might be missing? Helpful for any input. Regards, Linus _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
