Re: [osg-users] problems with CompositeViewer
Hi all, regarding the question yesterday about the problem with the compositeviewer, I attach the fragment of code that i am using. Has somebody any idea about where is the problem? Thank you very much. osg::ref_ptrosg::GraphicsContext::Traits traits = new osg::GraphicsContext::Traits; // Init the Windata Variable that holds the handle for the Window to display OSG in. osg::ref_ptrosg::Referenced windata = new osgViewer::GraphicsWindowWin32::WindowData(GetSafeHwnd()); // Setup the traits parameters traits-x = 0; traits-y = 0; traits-width = RectDLG.right - RectDLG.left; traits-height = RectDLG.bottom - RectDLG.top; traits-windowDecoration = false; traits-doubleBuffer = true; traits-sharedContext = 0; traits-setInheritedWindowPixelFormat = true; traits-inheritedWindowData = windata; // Create the Graphics Context osg::GraphicsContext* gc = osg::GraphicsContext::createGraphicsContext(traits.get()); // view 1: for 3D model /* Create the scene data */ // osgViewer::View* view1 = new osgViewer::View(); view1-getCamera()-setViewport(new osg::Viewport(traits-width/2,traits-y,traits-width/2,traits-height)); view1-getCamera()-setProjectionMatrixAsPerspective(30.0f, static_castdouble(traits-width/2)/static_castdouble(traits-height), 1.0f, 1.0f); view1-getCamera()-setGraphicsContext(gc); view1-setSceneData(BackgroundRoot); // view 2: for Background image /* Create the background image graph */ // osgViewer::View* view2 = new osgViewer::View(); view2-setSceneData(hudRoot); view2-getCamera()-setViewport(new osg::Viewport(0,0,traits-width,traits-height)); view2-getCamera()-setProjectionMatrixAsPerspective(30.0f, static_castdouble(traits-width)/static_castdouble(traits-height), 1.0f, 1.0f); view2-getCamera()-setGraphicsContext(gc); view2-setSceneData(ModelRoot); // Attach views to CompositeViewer sceneView-addView(view2); // Draw first? sceneView-addView(view1); - Original Message - From: David Oyarzun To: osg-users@lists.openscenegraph.org Sent: Tuesday, December 02, 2008 6:09 PM Subject: problems with CompositeViewer Hi all, I think I have a problem with the render order of the CompositeViewer. I am trying to program a osg-based windowed application that shows a 3D animated object centered in the right middle of the window. Moreover, it has a background image that fills all the window, including the right middle (behind the 3D model). I want that the application is modular, in the sense that depending the initial width and height fo the window, the 3D object appears always centered in the right middle. For doing that, I have created a CompositeViewer with 2 views, one of them setting the viewport to all the window and putting the background as SceneData, and the other one with the right middle size for putting the 3D object, but I only see the backgorund image. It seems like the backgorund image is always in the front, because if I delete its view, the 3D object is well positioned. Could be something related with the render order? If it is, how could I tell CompositeViewer to draw the background before the 3D model? Else, is it a good idea using the CompositeViewer for this kind of issue? Thank you in advance, David. __ Información de ESET NOD32 Antivirus, versión de la base de firmas de virus 3658 (20081202) __ ESET NOD32 Antivirus ha comprobado este mensaje. http://www.eset.com___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] problems with CompositeViewer
Hi all, I think I have a problem with the render order of the CompositeViewer. I am trying to program a osg-based windowed application that shows a 3D animated object centered in the right middle of the window. Moreover, it has a background image that fills all the window, including the right middle (behind the 3D model). I want that the application is modular, in the sense that depending the initial width and height fo the window, the 3D object appears always centered in the right middle. For doing that, I have created a CompositeViewer with 2 views, one of them setting the viewport to all the window and putting the background as SceneData, and the other one with the right middle size for putting the 3D object, but I only see the backgorund image. It seems like the backgorund image is always in the front, because if I delete its view, the 3D object is well positioned. Could be something related with the render order? If it is, how could I tell CompositeViewer to draw the background before the 3D model? Else, is it a good idea using the CompositeViewer for this kind of issue? Thank you in advance, David.___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osg2.x and osgViewer
Hi all, I have a problem with an ActiveX control using osg. I have it working well in osg 1.x but when I have migrated it to osg 2.x (changing the producer viewer to osgviewer), the OnPaint function of the control is never called and I can not update the osg graph. I think it is a problem with my configuration of the viewer. I have this in the main class of the control: osg::ref_ptrosg::Referenced windata = new osgViewer::GraphicsWindowWin32::WindowData(GetSafeHwnd()); // Setup the traits parameters traits-x = RectDLG.left; traits-y = RectDLG.top; traits-width = RectDLG.right - RectDLG.left; traits-height = RectDLG.bottom - RectDLG.top; traits-windowDecoration = false; traits-doubleBuffer = true; traits-sharedContext = 0; traits-setInheritedWindowPixelFormat = true; traits-inheritedWindowData = windata; osg::GraphicsContext* gc = osg::GraphicsContext::createGraphicsContext(traits.get()); osg::ref_ptrosg::Camera camera = new osg::Camera; camera-setGraphicsContext(gc); camera-setViewport(new osg::Viewport(0,0, traits-width, traits-height)); GLenum buffer = traits-doubleBuffer ? GL_BACK : GL_FRONT; camera-setDrawBuffer(buffer); camera-setReadBuffer(buffer); m_SceneView-addSlave(camera.get()); if I comment the traits-inheritedWindowData = windata; line, all works ok, it is updated an all the events occurs, but the osg frame appears as a separate window, however, if I use this line it appears integrated in the browser but onPaint function is never called. I would thank you if somebody can help me. Best regards, David.___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Problems with osgViewer and ActiveX
Hi all, I'm developing an ActiveX for a web browser using osgViewer. This is the configuration that I have used in order to attach the viewer to the window. It is included in my main activex control class: RECT RectDLG; GetWindowRect(RectDLG); // Init the GraphicsContext Traits osg::ref_ptrosg::GraphicsContext::Traits traits = new osg::GraphicsContext::Traits; // Init the Windata Variable that holds the handle for the Window to display OSG in. osg::ref_ptrosg::Referenced windata = new osgViewer::GraphicsWindowWin32::WindowData(GetSafeHwnd()); // Setup the traits parameters traits-x = RectDLG.left; traits-y = RectDLG.top; traits-width = RectDLG.right - RectDLG.left; traits-height = RectDLG.bottom - RectDLG.top; traits-windowDecoration = false; traits-doubleBuffer = true; traits-sharedContext = 0; traits-setInheritedWindowPixelFormat = true; traits-inheritedWindowData = windata; // Create the Graphics Context osg::GraphicsContext* gc = osg::GraphicsContext::createGraphicsContext(traits.get()); m_SceneView-getCamera()-setViewport(new osg::Viewport(0,0,traits-width,traits-height)); m_SceneView-getCamera()-setProjectionMatrixAsPerspective(30.0f, static_castdouble(traits-width)/static_castdouble(traits-height), 1.0f, 1.0f); m_SceneView-getCamera()-setGraphicsContext(gc); m_SceneView-setThreadingModel(osgViewer::Viewer::SingleThreaded); The update of the scene is done in the OnPaint function (with m_SceneView-frame()). My problem is that the OnPaint function is called but my scene is not visually updated. I think my problem is due to osg doesn't know that the scene is active and i need a function as makeCurrent in Producer::RenderSurface. I have seen this function in osgViewer it is protected, is there another similar function or something that tells osg that the scene is active? Thank you in advance, David.___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
