[Paraview] VRPN Setup

[Sean Delaney]

Thanks Aashish, it would be good to know if I have made an error with my
configuration. It's certainly not a major issue, the workaround is trivial
to implement.

Thanks a lot for your help,

Seán



On Tue, Jul 24, 2012 at 6:50 PM, Aashish Chaudhary <
aashish.chaudhary at kitware.com> wrote:

> 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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