[vrjuggler-info] Re: [Chromium-environment] Using VrJuggler with Chromium

[Brian P. <br...@tu...>]

Dan Hiepler wrote:
> I would like to use Vrjuggler DR3 with Chromium 1.1 on Linux Redhat 8.
> 
> I beleive the recommended way is to use a separate viewports for each wall 
> in VrJuggler. For the simulator the file 
> vrjuggler/data/configFiles/sim.c6viewports.mixin.config 
> is recommmended.
> 
> Chromium does not seem to work with the viewports appearing on screen as
> an unfolded cube. In the case of a single tile Chromium appears to require it
> to start at [0,0]. Do I have to arrange the VrJuggler viewports into a 
> rectangle such as 1 row 6 coloumns ?
> 
> I would like to get a 4 wall passive stereo environment working.
> This will use separate left and right stereo channel computers and
> projectors for each wall.  8 computers altogether and 8 projectors.
> 
> Since the chromium tilesort spu maps by screen area how do I configure 
> VrJuggler and Chromium to send each walls left and right projection data
> to separate computers ?
> Do I have to use a different screen area by altering my glViewport for
> left and right channels ?
> 
> Are there any special synchronization issues for this 8 computer 
> 4 wall passive stereo environment ?
> 
> Cluster juggler is another approach but I do not want to replicate my large
> amount of input data.

The tilesort SPU requires that the tiles all be coplanar.  It sounds like 
you've got a CAVE-like system.  There's a facility for warped tiles (see the 
docs) but I believe that applies only to warping within the image plane.

You're not the first person to ask about this and I've suggested extending the 
tilesort SPU to work with non-planer tilings but I don't think anyone's 
tackled it.

I hope I haven't misunderstood what you're doing.

-Brian