[osg-users] OSG on overlapping screen wall

2008-09-02 Thread Yanling Liu
Hello, I am using OSG with a overlapping screen wall (two projecters overlapped to create a large display). A problem is that osgViewer won't use all display area: Two projectors display two sub-screens overlapping together for a large screen. But osgViewer only use one sub-screen. I have tried to

Re: [osg-users] OSG on overlapping screen wall

2008-09-02 Thread Ryven
Hi There, to build a power wall without a blending zone, you should create 2 screens (and update your server layout) in xorg.conf, that way osgviewer will span across all screens automatically. to have a blending zone you can create 2 windows (one in each screen), and adjust the projection of each

Re: [osg-users] OSG on overlapping screen wall

2008-09-02 Thread Yanling Liu
Thanks, Ryven, Sorry I didn't make this clear. The display wall I am using is an overlapping wall. That means two projectors are physically adjusted to be overlapping/edge blending. These projectors have built-in image processor to do edge blending. In fact, I can start osgViewer using following

Re: [osg-users] OSG on overlapping screen wall

2008-09-02 Thread Robert Osfield
Hi Yanling, The osgViewer's standard settings won't help you, as it simply doesn't know about your overlaps. The OSG does support what you are trying to do but you'll need to either create a Producer style .cfg file to configure the slave cameras offset, or set slave camera projection offset

Re: [osg-users] OSG on overlapping screen wall

2008-09-02 Thread Robert Osfield
Hi Yanling, Is it that you are trying to create a single graphics context across both screens? With the overlap being hidden by X? I kinda doubt that this is possible. The way I would tackle the task would be to create two separate graphics contexts, with two separate slave cameras, and then