---------- Initial Header -----------

>From      : [EMAIL PROTECTED]
To          : [email protected]
Cc          :
Date      : Mon, 21 Nov 2005 12:33:45 +0100
Subject : Re: [Opensg-users] Really serious problem







>
> Hi Antonio,
>
> I try to give my experiences with using the ProjectionCameraDecorator in
> a tracked environment. There is a good documentation (it helped me a
> lot) for that in
> Source/System/Window/Window.dox
> see \paragraph PageSystemWindowCameraDecoratorsStereoProjection
>        Projection Screen
> or the corresponding DOXYGEN documentation ;-)
>


Thanks but It doesn't help. I used the tracking system reference frame, but I 
always see broken models between the two walls (as if the spatial relation 
between the walls were wrong... It looks like a ray of light refracted through 
water... what's wrong? )

> antonio_lioy wrote:
>
> >Hi guys. I tried my stereo application on my two wall CAVE and objects 
> >appeared "broken" on the screen (as if there were bent on the opposite 
> >direction of the angle between the two walls). This probably means that 
> >there's something wrong with the axis and reference frames I used to specify 
> >the positions of the corners of the walls. Which system should I use? 
> >OpenSG's one or the tracking system one? For now I used the one of my 
> >tracking system (that is in the centre of my cave) but how could OpenSG be 
> >aware of it?
> >
> you have to give the projection screen corners in tracking system
> coordinates, i.e. in the same coordinates the user beacon (given to
> ProjectionCameraDecorator) receives.
>
> >As u can see I'm a bit confused, so please give any help... It's very 
> >important...
> >Thanks a lot
> >
> >
> But I remember it required some fiddling around to get it right.
> Perhaps you can use some known scene, like a sphere per projection
> screen corner.

I don't understand that. What should I do with the spheres?
What do you mean with fiddling??


>
> Hope it helps,
> Christoph
>
>
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