[osg-users] Slave camera configuration by config file

Jean-Sébastien Guay jean-sebastien.guay at cm-labs.com
Thu Nov 26 10:52:56 PST 2009

Hi Paul,

> I have a system with four displays arranged as a 2x2 powerwall. If I 
> simply bring up "osgviewer cow.osg", osgViewer seems to think that the 
> four displays are arranged horizontally. That seems like a fine default 
> assumption.

Yes, I've seen this too. On Windows (and I expect on Linux and OSX too) 
there's an API call you can make to get the actual offset of a screen, 
so you can detect how the screens are physically arranged (as long as 
the system's display properties are set correctly of course). We use 
this in our software to set up layouts like the one you want, and I was 
thinking of submitting a modification to osgViewer (probably 
GraphicsWindowWin32) to take this into account.

But yeah, if you can find a way to make a config file that will do it as 
you want, that will be a good solution. And simpler than autodetecting 
correctly :-)

Jean-Sebastien Guay    jean-sebastien.guay at cm-labs.com

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