Robert Osfield wrote: > If you wish to reuse texture objects generated by one context then you > need to share the various contexts with each other. You can set this > via the GraphicsContext::Traits::sharedContext variable.
Ah! OK, that makes sense. But I am having problems with it... I have the following: ref_ptr<GraphicsContext::Traits> traits_rtt = new GraphicsContext::Traits; traits_rtt->x = 500; traits_rtt->y = 880; traits_rtt->width = totalWidth; traits_rtt->height = vpHeight; traits_rtt->windowDecoration = false; traits_rtt->doubleBuffer = true; traits_rtt->sharedContext = 0; ref_ptr<GraphicsContext> gc_rtt = GraphicsContext::createGraphicsContext(traits_rtt.get()); ref_ptr<GraphicsContext::Traits> traits_view = new GraphicsContext::Traits; traits_view->x = 500; traits_view->y = 800; traits_view->width = totalWidth; traits_view->height = vpHeight; traits_view->windowDecoration = true; traits_view->doubleBuffer = true; traits_view->sharedContext = gc_rtt.get(); ref_ptr<GraphicsContext> gc_view = GraphicsContext::createGraphicsContext(traits_view.get()); Then I have a viewer with a camera rendering to a texture, and a viewer rendering a textured quad to a window. But when I call Viewer::frame() on the viewer that renders to the window, I get the following error messages: Windows Error #170: [Screen #0] GraphicsWindowWin32::realizeImplementation() - Unable to share OpenGL context. Reason: The requested resource is in use. Error: [Screen #0] GraphicsWindowWin32::makeCurrentImplementation() - Window not realized; cannot do makeCurrent. Are there any examples I can work off? I've tried a search for sharedContext in the OSG project, but I just get the implementation code, not any example code. Incidentally, I've upgraded to 2.1.9 without a hitch. -J ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
