Hello Jie Liu,
I'm not sure I understand it correctly; do you mean that the displays
are configured to display a scene as if their display areas were
adjacent, but in reality they are separated by the display's frames?
If that is the problem you are describing, I think you are basically
handling the two displays as if they were one larger display without
any gap between them. That might actually the best thing to do if the
displays have thin frames.
The alternative I can see is to treat the displays as independent but
viewed from a single eye position (if you have headtracking that
position would actually be moving). So each display gets its own
frustum and the two frusta share a common "tip" point. In this way
you'd be treating the two displays like two glass panes of a window
that are separated by the window frame. The reason I mentioned head
tracking is that you'd either have to select a single point from which
the view through this window into the scene would be correct or you
need to know the users position, because the frame occludes different
parts of your scene depending on your position in front of the
display.
Cheers,
Carsten
On 8/4/09, Jie Liu <[email protected]> wrote:
> Hi,
>
> I have ported my OpenSG program to a computer with dual displays
>
> But the frame borders of monitors bring the scene visual errors. I attached
> an image to illustrate this effect.
>
> I think the probable solution is to modify the view port for each half of my
> glut window.
>
> I have read the documents of OpenSG, however, I did not find anything
> helpful.
>
>
> I am not quite sure if I have presented the problem clearly... You know what
> I mean, right?
>
> Anyway I need your suggestions, thank you~~
>
>
>
>
> --
> Jie Liu
> Visualization Research Group
> Center for Information Science, School of EECS,
> Room 2104, Science Building No.2,
> Peking University, Beijing 100871, China
>
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