Re: [osg-users] Viewer on single screen - other screen black?
Hi J-S, Which platforms have you seen this problem on? What happens when you setUpViewInWindow(...)? Robert. On Mon, Feb 11, 2008 at 4:52 PM, Jean-Sébastien Guay [EMAIL PROTECTED] wrote: Hello, If I use the osgViewer::View::setUpViewOnSingleScreen() method, the view is on the single screen but the other one is black. I would have expected that if there is nothing specifically set to occupy the second screen, my application would not occupy it so I would see (for example) my debugger on it. I can reproduce this by simply adding viewer.setUpViewOnSingleScreen(); before viewer.realize() in the osgviewer application's osgviewer.cpp file. Not sure if this is a known issue. I thought it was related to something we did incorrectly on our side, but it doesn't seem so. We are using OSG 2.2 here, but it still does the same thing in OSG from SVN. Has anyone encountered the same issue, and is there any workaround? Could it be related to fullscreen vs windowed mode? I would like setUpViewOnSingleScreen to just use the one screen (unless I have another view on the other screen of course) and setUpViewAcrossAllScreens to use both screens. Thanks in advance, J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Viewer on single screen - other screen black?
On Fri, Feb 15, 2008 at 3:09 PM, Jean-Sébastien Guay [EMAIL PROTECTED] wrote: Hello Robert, Which platforms have you seen this problem on? Windows XP/Vista. What happens when you setUpViewInWindow(...)? It's in a window :-) I've found a workaround, which is to use setUpViewInWindow(), and once it's done, turn off window decorations. I have to adjust the (x,y) and (w,h) to account for removing the decorations, but this gives me a nice fake fullscreen window on one screen, and I can see my debugger on the other. So I really think that it's normal behaviour. setUpViewOnSingleScreen still sets up the traits with decorations off, which when creating the GraphicsWindowWin32 is assumed to mean full screen mode, which will take up your two displays. Since you have only a master view on one screen, the other one stays black. This sounds like an issue that GraphicsWindowWin32 needs to take account of, I can't say what's the best way as I'm no Win32 expert, having to do funky workarounds is hacky and hardly the type of behavior that'd we may. Might it be Win32 full screen is only ever appropriate when you use all screens on a machine? Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Viewer on single screen - other screen black?
Hello Robert, Which platforms have you seen this problem on? Windows XP/Vista. What happens when you setUpViewInWindow(...)? It's in a window :-) I've found a workaround, which is to use setUpViewInWindow(), and once it's done, turn off window decorations. I have to adjust the (x,y) and (w,h) to account for removing the decorations, but this gives me a nice fake fullscreen window on one screen, and I can see my debugger on the other. So I really think that it's normal behaviour. setUpViewOnSingleScreen still sets up the traits with decorations off, which when creating the GraphicsWindowWin32 is assumed to mean full screen mode, which will take up your two displays. Since you have only a master view on one screen, the other one stays black. It was just not what I expected, but now that I know, it doesn't really matter that much. Thanks, J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Viewer on single screen - other screen black?
On Fri, Feb 15, 2008 at 3:44 PM, Jean-Sébastien Guay [EMAIL PROTECTED] wrote: This sounds like an issue that GraphicsWindowWin32 needs to take account of, I can't say what's the best way as I'm no Win32 expert, having to do funky workarounds is hacky and hardly the type of behavior that'd we may. Can I assume then that on Linux you can do setUpViewOnSingleScreen(0) and the other screen will be usable (i.e. not black)? Yes, it does exactly what you would expect it to do, it sets up the view on a single screen. Might it be Win32 full screen is only ever appropriate when you use all screens on a machine? That's what I think. If your answer to the above is yes, I'd put it down to platform differences. It'd be nice to document it in that case. (not asking, just saying I'll get to it if I have time :-) I don't think it should be a case of shrugging ones shoulders and excepting that Windows doesn't work properly and documenting this. osgViewer should behave the same on all platforms as far as we can possibly make it. If full screen under windows trips windows up so that it grabs all screens then its something we can only use when osgViewer is running over all screens, when this isn't the case a borderless full screen window will probably have to be used. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Viewer on single screen - other screen black?
Hi Robert, I don't think it should be a case of shrugging ones shoulders and excepting that Windows doesn't work properly and documenting this. osgViewer should behave the same on all platforms as far as we can possibly make it. I'm not saying Windows does not work properly, just it does things differently. Policies and driver implementations are different, nothing we can do about it. Though we can hide it, and I agree osgViewer should do the same thing (visually) on all platforms. If full screen under windows trips windows up so that it grabs all screens then its something we can only use when osgViewer is running over all screens, when this isn't the case a borderless full screen window will probably have to be used. Before we go and put in a workaround in osgViewer itself for this, let me have a look at some documentation and see how GraphicsWindowWin32 is implemented. Maybe there's something there that can give some clues. It seems that the flag windowDecorations in the traits structure is what's triggering this. Even if I want to do my borderless window workaround, I need to pass the traits with windowDecorations=true when creating the window, and then disable them (gw-setWindowDecorations(false)) afterwards, otherwise still I get the black screen on the other screen. Also, the fact no one else on Windows has come forward to comment on this makes me doubtful. I'm not that familiar with implementing windowing on Windows, so it may be some detail I'm not familiar with. I'll get back to you. J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Viewer on single screen - other screen black?
Hello, If I use the osgViewer::View::setUpViewOnSingleScreen() method, the view is on the single screen but the other one is black. I would have expected that if there is nothing specifically set to occupy the second screen, my application would not occupy it so I would see (for example) my debugger on it. I can reproduce this by simply adding viewer.setUpViewOnSingleScreen(); before viewer.realize() in the osgviewer application's osgviewer.cpp file. Not sure if this is a known issue. I thought it was related to something we did incorrectly on our side, but it doesn't seem so. We are using OSG 2.2 here, but it still does the same thing in OSG from SVN. Has anyone encountered the same issue, and is there any workaround? Could it be related to fullscreen vs windowed mode? I would like setUpViewOnSingleScreen to just use the one screen (unless I have another view on the other screen of course) and setUpViewAcrossAllScreens to use both screens. Thanks in advance, J-S -- __ Jean-Sebastien Guay[EMAIL PROTECTED] http://www.cm-labs.com/ http://whitestar02.webhop.org/ ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
