I try this concept, now. (see png) I'm not sure, but I guess it is a elegant solution.
Cheers Martin -------- Original-Nachricht -------- > Datum: Fri, 29 Oct 2010 11:35:04 +0200 > Von: "Martin Großer" <[email protected]> > An: OpenSceneGraph Users <[email protected]> > Betreff: Re: [osg-users] Two Viewports with one Camera > Hello, > > OK, for the completeness of my problem. I want to use two different > viewer. An normal OSGViewer and a GTKViewer. The common denominator is the > osg::Viewer class. I want to use one or more viewports and one or more > cameras. > And every camera can show different scenes. The cameras should have a > manipulator like trackball manipulator. I guess the problem is not so trivial. > > I try to do this: > > - First camera is the "master" camera (set camera and scene data in > viewer) > viewer->setCamera(cam_1); > root->addChild(scene_1); > viewer->setSceneData(root); > > - next camera set in the scene graph and the scene is a child of the > camera > cam_2->addChild(scene_2); > root->addChild(cam_2); > > - and so on for more cameras with a scene > > - now I set the viewports > cam_1->viewport(...); > cam_2->viewport(...); > > - it works fine, but now I want to add a third viewport with the first > camera, too > cam_1->addChild(scene_1); > root->addChild(cam_1); > cam_1->setviewport(...); > > - it is unsurprising that doesn't work > > That is my actual state of affairs. > > Cheers > > Martin > > -------- Original-Nachricht -------- > > Datum: Fri, 29 Oct 2010 11:14:56 +0200 > > Von: "J.P. Delport" <[email protected]> > > An: OpenSceneGraph Users <[email protected]> > > Betreff: Re: [osg-users] Two Viewports with one Camera > > > Hi, > > > > On 29/10/10 11:02, "Martin Großer" wrote: > > > Hello, > > > > > > the problem is that I want to use a embedded viewer (gtk), too. I > > > guess it doesn't work with the composite viewer. Or is it possible? > > > > sorry, I'm not sure. > > > > jp > > > > > > > > Cheers > > > > > > Martin > > > > > > > > > -------- Original-Nachricht -------- > > >> Datum: Fri, 29 Oct 2010 10:58:10 +0200 Von: "J.P. > > >> Delport"<[email protected]> An: OpenSceneGraph > > >> Users<[email protected]> Betreff: Re: [osg-users] > > >> Two Viewports with one Camera > > > > > >> Hi, > > >> > > >> On 29/10/10 10:48, "Martin Großer" wrote: > > >>> Ok. I try the slave variant. > > >>> > > >>> I have a additional question. When I use two different cameras > > >>> and three viewports, how would you implement this. Two viewport > > >>> have the first camera and the third viewport has the second > > >>> camera. > > >>> > > >>> My idea is something like this: > > >>> > > >>> // Camera 1 osg::Camera* cam1 = new ... > > >>> slaveCam1->setViewport(...); > > >>> > > >>> // Slave Camera 1 osg::Camera* slaveCam1 = new ... > > >>> slaveCam1->setViewport(...); > > >>> > > >>> // Camera 2 osg::Camera* cam2 = new ... cam2->setViewport(...); > > >>> cam2->addChild(scene); > > >>> > > >>> // RootNode // Camera two as a part of the scene graph. Is this > > >>> clever? osg::Group* root = new ... root->addChild(scene); > > >>> root->addChild(cam2); > > >>> > > >>> // Viewer osg::Viewer* viewer = new ... > > >>> viewer->setSceneData(root); viewer->setCamera(cam1); > > >>> viewer->addSlave(slaveCam1); > > >>> > > >>> > > >>> Is this the right way? And what is your commendation to use > > >>> different camera manipulators. That means, what can I do when I > > >>> want to use a manipulator for the second camera (the camera in > > >>> the root node). > > >>> > > >>> My idea is to write a GUIEventhandler. This should check the > > >>> mouse position and give the viewport or the camera and then I > > >>> calculate the new position like the trackball manipulator. That > > >>> is the approximate idea. > > >> > > >> Do you want something different from what happens if you run > > >> "osgcompositeviewer cow.osg". There, each view can have its own > > >> manipulator. > > >> > > >> jp > > >> > > >>> > > >>> Cheers > > >>> > > >>> Martin > > >>> > > >>> > > >>> -------- Original-Nachricht -------- > > >>>> Datum: Fri, 29 Oct 2010 09:21:29 +0100 Von: Robert > > >>>> Osfield<[email protected]> An: OpenSceneGraph > > >>>> Users<[email protected]> Betreff: Re: > > >>>> [osg-users] Two Viewports with one Camera > > >>> > > >>>> Hi Martin, > > >>>> > > >>>> I'm a bit confused by the thread, but as a general note you > > >>>> shouldn't go attempting to use two separate Viewport per > > >>>> Camera. The OSG fully supports slave Camera that can share > > >>>> scene graphs and share the same graphics context, so it's > > >>>> straight forward to implement and manage, the osgViewer design > > >>>> has been specifically designed to make this type of usage as > > >>>> simple as possible. > > >>>> > > >>>> Robert. > > >>>> > > >>>> 2010/10/29 "Martin Großer"<[email protected]>: > > >>>>> Hello all, > > >>>>> > > >>>>> I would like use two viewports in my application and one > > >>>>> camera. Is this > > >>>> possible? I think, the normal way is to define the viewport for > > >>>> a camera like: camera->setViewport(...) > > >>>>> > > >>>>> Is the only way to define camera, copy the camera and set > > >>>>> the viewports > > >>>> separatly for every camera? The main problem is when I change > > >>>> the camera settings, I have to copy the camera again. > > >>>>> > > >>>>> Cheers > > >>>>> > > >>>>> Martin -- GMX DSL Doppel-Flat ab 19,99€/mtl.! Jetzt > > >>>>> auch mit gratis Notebook-Flat! > > >>>>> http://portal.gmx.net/de/go/dsl > > >>>>> _______________________________________________ osg-users > > >>>>> mailing list [email protected] > > >>>>> > > >>>> > > >> > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > >>>>> > > >>>> > > >>>> > > >> > > >> > > _______________________________________________ > > >>>> osg-users mailing list [email protected] > > >>>> > > >> > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > >>> > > >> > > >> > > >> > > -- > > >> This message is subject to the CSIR's copyright terms and > > >> conditions, e-mail legal notice, and implemented Open Document > > >> Format (ODF) standard. The full disclaimer details can be found at > > >> http://www.csir.co.za/disclaimer.html. > > >> > > >> This message has been scanned for viruses and dangerous content by > > >> MailScanner, and is believed to be clean. MailScanner thanks > > >> Transtec Computers for their support. > > >> > > >> _______________________________________________ osg-users mailing > > >> list [email protected] > > >> > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > > > -- > > This message is subject to the CSIR's copyright terms and conditions, > > e-mail legal notice, and implemented Open Document Format (ODF) > standard. > > The full disclaimer details can be found at > > http://www.csir.co.za/disclaimer.html. > > > > This message has been scanned for viruses and dangerous content by > > MailScanner, > > and is believed to be clean. MailScanner thanks Transtec Computers for > > their support. > > > > _______________________________________________ > > osg-users mailing list > > [email protected] > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > -- > GRATIS! Movie-FLAT mit über 300 Videos. > Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- Neu: GMX De-Mail - Einfach wie E-Mail, sicher wie ein Brief! Jetzt De-Mail-Adresse reservieren: http://portal.gmx.net/de/go/demail
<<attachment: camera_viewport_concept.png>>
_______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
