[Paraview] VRPN Setup

[Aashish Chaudhary]

On Tue, Jul 24, 2012 at 12:03 PM, Sean Delaney <sdelaney at cp.dias.ie> wrote:

> Hi Aashish,
>
> In my case, my tracker data is in mm but my chosen world coordinates are
> in meters, so I transformed the tracking data to meters and I expect the
> eye separation to be defined in meters too.
>
> > It is. If you transform your tracker data, then you would have to
>> > adjust your eye separation as well.
>
>
> Ok, but this does not work for me. I have transformed my tracking data to
> meters. If I define the eye separation to be "0.065", I can not see stereo
> effects. If I use "65", I see the expected stereo effects. It seems like
> Paraview requires the separation to be specified in mm, even though I have
> transformed my tracking data (and everything else) to meters.
>

Hmm... this is not quite right. Let me get back to you on this.

>
>
>> Like I said ParaView has no notion of units. So  it really depends on
>> the user to define a system and stick with it.
>
>
> Agreed, I am trying to do this. I have defined my world coordinates in
> meters. I have transformed my tracking data to meters. Yet Paraview still
> requires the eye separation to be specified in mm. Why? This seems like a
> mistake to me.
>
>
>> No problem. Hope my explanation makes sense. Let me know if I miss
>> something.
>
>
> Thanks very much for the explanation and your time. It makes perfect
> sense. Unfortunately this is not the behavior I see when I run Paraview
> with the VR plugin. It seems like a bug to me, but perhaps this is what the
> developers intended.
>

Yes, something is not quite right. We do work with our collaborator and
they have a CAVE so I could ask him to experiment with this.

>
> Seán
>



-- 
| Aashish Chaudhary
| R&D Engineer
| Kitware Inc.
| www.kitware.com
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