[Paraview] Mono and Stereo Rendering in the CAVE
Faiz Abidi
fabidi89 at vt.edu
Mon Mar 28 11:47:18 EDT 2016
Thinking more about it - is there a way to define a LeftEye and a RightEye
in my PVX file? The way we have setup in the CAVE is that we have two video
signals for the left, and the right eye coming out of the graphics card.
That's why this issue we think.
If nothing works, we may have to look at doing double mono work but I was
hoping someone else may have run into this issue already. Is there some
more docs on the PVX usage other than what I found here? http://www.paraview
.org/Wiki/Immersive_ParaView#Notes_on_PVX_file_usage
On Sat, Mar 26, 2016 at 1:19 AM, Faiz Abidi <fabidi89 at vt.edu> wrote:
> Hi Ashish,
>
> Thanks for your email. I was just now reading an old thread by you on a
> similar topic answering someone's query on a similar problem.
>
> 1. Yes, you are right. Two projectors per wall doing active stereo. So, in
> my PVX file, for doing only one half of the wall, I define Display=:0.0
> (left eye) and Display=:0.1 (right eye).
>
> 2. Yes, active stereo on each half of the wall.
>
> 3. Umm, no. Here's what's happening. Sorry if I didn't explain properly
> before. I use two processes to drive one half of the wall using mpi. I put
> on glasses and don't see anything with my right eye and see two images with
> my left. I tend to think this is where I am doing something wrong. I tried
> using 1 process to drive one half of the wall but same result.
>
> I just tried running glxgears in stereo and see an error - "Error:
> couldn't get an rgb double-buffered visual". :/ But I am running
> InstantReality projects in the same CAVE using stereo. This is a bit weird.
>
> Btw, I am using one powerful machine with 4 graphics card on it to drive
> the entire CAVE.
>
> Thanks again for your help! If you have any more ideas, I would be glad to
> hear.
>
> On Fri, Mar 25, 2016 at 11:45 PM, Aashish Chaudhary <
> aashish.chaudhary at kitware.com> wrote:
>
>> Hi Faiz,
>>
>> Few things:
>>
>> 1| You have two projectors per wall each covering half of the wall
>> 2| You are trying to do active stereo on each half part of the wall
>> 3| You put glasses on and you see both left and right eye on the half
>> wall from the same projector
>>
>> If this is the case, it sounds like your active stereo is not working.
>> Are you sure your driver is setup up correctly? Before you try to work on
>> cluster setup, just try working on one projector for debugging purposes. If
>> I were you I would do this:
>>
>> 1) Just use PVX to run on one projector (half wall)
>> 2) Make sure your driver is setup correctly. If this is linux try running
>> glxgears in stereo mode (
>> http://manpages.ubuntu.com/manpages/karmic/man1/glxgears.1.html)
>> 3) If 2) works then something is wrong with VTK/ParaView/Config somewhere.
>> 4) Make sure that your active glasses are working meaning that they are
>> syncing with the transmitter which is connected to the node
>>
>> Hope this helps.
>>
>>
>>
>>
>> On Fri, Mar 25, 2016 at 7:28 PM, Faiz Abidi <fabidi89 at vt.edu> wrote:
>>
>>> Alright, I updated the pvx file some, just the correct coordinates.
>>>
>>> <?xml version="1.0" ?>
>>> <pvx>
>>> <Process Type="client" />
>>> <Process Type="server">
>>> <!-- Tiled wall in Kitware -->
>>> <EyeSeparation Value="0.065"/>
>>> <Machine Name="CTL"
>>> Environment="DISPLAY=:0.4"
>>> Geometry="2560x1600+0+0"
>>> FullScreen="0"
>>> ShowBorders="0"
>>> LowerLeft="-1.524 -0.381 -1.524"
>>> LowerRight="1.524 -0.381 -1.524"
>>> UpperRight="1.524 1.524 -1.524"/>
>>> <Machine Name="CTR"
>>> Environment="DISPLAY=:0.5"
>>> Geometry="2560x1600+0+0"
>>> FullScreen="1"
>>> ShowBorders="0"
>>> LowerLeft="-1.524 -0.381 -1.524"
>>> LowerRight="1.524 -0.381 -1.524"
>>> UpperRight="1.524 1.524 -1.524"/>
>>> <Machine Name="CBL"
>>> Environment="DISPLAY=:0.6"
>>> Geometry="2560x1600+0+0"
>>> FullScreen="1"
>>> ShowBorders="0"
>>> LowerLeft="-1.524 -1.524 -1.524"
>>> LowerRight="1.524 -1.524 -1.524"
>>> UpperRight="1.524 0.381 -1.524"/>
>>> <Machine Name="CBR"
>>> Environment="DISPLAY=:0.7"
>>> Geometry="2560x1600+0+0"
>>> FullScreen="1"
>>> ShowBorders="0"
>>> LowerLeft="-1.524 -1.524 -1.524"
>>> LowerRight="1.524 -1.524 -1.524"
>>> UpperRight="1.524 0.381 -1.524"/>
>>> </Process>
>>> </pvx>
>>>
>>> I tried attaching an image for reference but my email didn't go through.
>>> I can see the two images (left eye, right eye) with an eye separation of
>>> 0.065, but for some reason, I see both the images with stereo glasses on in
>>> each eye. Any more ideas?
>>>
>>> Lance (CC'd) had an idea that maybe, we can do passive stereo rendering
>>> as well. Would you recommend that given our projectors here do support
>>> active stereo? I am still trying though to make it work with active stereo.
>>> Is there someway to define the viewpoints in the pvx file? Also, is there
>>> some kind of a schema for this pvx file published somewhere?
>>>
>>> Thanks for all your help!
>>>
>>> On Fri, Mar 25, 2016 at 6:04 PM, Faiz Abidi <fabidi89 at vt.edu> wrote:
>>>
>>>> Alright, I updated the pvx file some, just the correct coordinates.
>>>>
>>>> <?xml version="1.0" ?>
>>>> <pvx>
>>>> <Process Type="client" />
>>>> <Process Type="server">
>>>> <!-- Tiled wall in Kitware -->
>>>> <EyeSeparation Value="0.065"/>
>>>> <Machine Name="CTL"
>>>> Environment="DISPLAY=:0.4"
>>>> Geometry="2560x1600+0+0"
>>>> FullScreen="0"
>>>> ShowBorders="0"
>>>> LowerLeft="-1.524 -0.381 -1.524"
>>>> LowerRight="1.524 -0.381 -1.524"
>>>> UpperRight="1.524 1.524 -1.524"/>
>>>> <Machine Name="CTR"
>>>> Environment="DISPLAY=:0.5"
>>>> Geometry="2560x1600+0+0"
>>>> FullScreen="1"
>>>> ShowBorders="0"
>>>> LowerLeft="-1.524 -0.381 -1.524"
>>>> LowerRight="1.524 -0.381 -1.524"
>>>> UpperRight="1.524 1.524 -1.524"/>
>>>> <Machine Name="CBL"
>>>> Environment="DISPLAY=:0.6"
>>>> Geometry="2560x1600+0+0"
>>>> FullScreen="1"
>>>> ShowBorders="0"
>>>> LowerLeft="-1.524 -1.524 -1.524"
>>>> LowerRight="1.524 -1.524 -1.524"
>>>> UpperRight="1.524 0.381 -1.524"/>
>>>> <Machine Name="CBR"
>>>> Environment="DISPLAY=:0.7"
>>>> Geometry="2560x1600+0+0"
>>>> FullScreen="1"
>>>> ShowBorders="0"
>>>> LowerLeft="-1.524 -1.524 -1.524"
>>>> LowerRight="1.524 -1.524 -1.524"
>>>> UpperRight="1.524 0.381 -1.524"/>
>>>> </Process>
>>>> </pvx>
>>>>
>>>> Attached is one image for reference. I can clearly the two images with
>>>> an eye separation of 0.065, but for some reason, I see both the images with
>>>> stereo glasses on. Any more ideas?
>>>>
>>>> Lance (CC'd) had an idea that maybe, we can do passive stereo
>>>> rendering as well. Would you recommend that given our projectors here do
>>>> support active stereo? I am still trying though to make it work with active
>>>> stereo. Is there someway to define the viewpoints in the pvx file?
>>>> Also, is there some kind of a schema for this pvx file published
>>>> somewhere?
>>>>
>>>> Thanks for all your help!
>>>>
>>>> On Fri, Mar 25, 2016 at 4:55 PM, Faiz Abidi <fabidi89 at vt.edu> wrote:
>>>>
>>>>> I can see the error from both the client, and the server.
>>>>>
>>>>> Just tried RedBlue and I got a left eye but no right eye. When I
>>>>> changed the server's type to from Same as Client to CrystalEyes, I get the
>>>>> same errors in vtkOpenGLCamera.cxx.
>>>>>
>>>>> On Fri, Mar 25, 2016 at 4:34 PM, David E DeMarle <
>>>>> dave.demarle at kitware.com> wrote:
>>>>>
>>>>>> Is that error message from the client or server process?
>>>>>>
>>>>>> Also, try just RedBlue at first and verify that you get two
>>>>>> perspectives. Then in the properties panel, change the server's type to
>>>>>> from Same as Client to CrystalEyes.
>>>>>>
>>>>>>
>>>>>> David E DeMarle
>>>>>> Kitware, Inc.
>>>>>> R&D Engineer
>>>>>> 21 Corporate Drive
>>>>>> Clifton Park, NY 12065-8662
>>>>>> Phone: 518-881-4909
>>>>>>
>>>>>> On Fri, Mar 25, 2016 at 4:27 PM, Faiz Abidi <fabidi89 at vt.edu> wrote:
>>>>>>
>>>>>>> I do enable --stereo on the client side when connecting to the
>>>>>>> server, but when I give --stereo-type="Crystal Eyes", I get OpenGL errors
>>>>>>> in vtkOpenGLCamera.cxx. I don't get that when I don't specify the stereo
>>>>>>> type. I *think* that's because "Crystal Eyes" ain't supported by the
>>>>>>> projectors we have here (not sure).
>>>>>>>
>>>>>>> Yes, I checked the stereo type in the properties panel. It sets it
>>>>>>> to Anaglyph, and Server Stereo Type = Same as Client.
>>>>>>>
>>>>>>> On Fri, Mar 25, 2016 at 4:07 PM, David E DeMarle <
>>>>>>> dave.demarle at kitware.com> wrote:
>>>>>>>
>>>>>>>> Have you started the client that connects to the pvserver with
>>>>>>>> --stereo and verified the stereo type for client and server jobs the view
>>>>>>>> section of the properties panel?
>>>>>>>> On Mar 25, 2016 3:43 PM, "Faiz Abidi" <fabidi89 at vt.edu> wrote:
>>>>>>>>
>>>>>>>>> Hi guys,
>>>>>>>>>
>>>>>>>>> I have setup Paraview5 in a CAVE environment at Virginia Tech. I
>>>>>>>>> got mono to work but I am stuck with Stereo rendering.
>>>>>>>>>
>>>>>>>>> Below is my stereo cave.pvx file.
>>>>>>>>>
>>>>>>>>> <?xml version="1.0" ?>
>>>>>>>>> <pvx>
>>>>>>>>> <Process Type="client" />
>>>>>>>>> <Process Type="server">
>>>>>>>>> <!-- Tiled wall in Kitware -->
>>>>>>>>> <EyeSeparation Value="0.065"/>
>>>>>>>>> <Machine Name="CTL"
>>>>>>>>> Environment="DISPLAY=:0.4"
>>>>>>>>> Geometry="2560x1600+0+0"
>>>>>>>>> FullScreen="1"
>>>>>>>>> ShowBorders="0"
>>>>>>>>> LowerLeft="-1 -1 -1"
>>>>>>>>> LowerRight="1 -1 -1"
>>>>>>>>> UpperRight="1 1 -1"/>
>>>>>>>>> <Machine Name="CTR"
>>>>>>>>> Environment="DISPLAY=:0.5"
>>>>>>>>> Geometry="2560x1600+0+0"
>>>>>>>>> FullScreen="1"
>>>>>>>>> ShowBorders="0"
>>>>>>>>> LowerLeft="-1 -1 1"
>>>>>>>>> LowerRight="1 -1 -1"
>>>>>>>>> UpperRight="1 1 -1"/>
>>>>>>>>> <Machine Name="CBL"
>>>>>>>>> Environment="DISPLAY=:0.6"
>>>>>>>>> Geometry="2560x1600+0+0"
>>>>>>>>> FullScreen="1"
>>>>>>>>> ShowBorders="0"
>>>>>>>>> LowerLeft="-1 -1 -1"
>>>>>>>>> LowerRight="1 -1 -1"
>>>>>>>>> UpperRight="1 1 -1"/>
>>>>>>>>> <Machine Name="CBR"
>>>>>>>>> Environment="DISPLAY=:0.7"
>>>>>>>>> Geometry="2560x1600+0+0"
>>>>>>>>> FullScreen="1"
>>>>>>>>> ShowBorders="0"
>>>>>>>>> LowerLeft="-1 -1 -1"
>>>>>>>>> LowerRight="1 -1 -1"
>>>>>>>>> UpperRight="1 1 -1"/>
>>>>>>>>> </Process>
>>>>>>>>> </pvx>
>>>>>>>>>
>>>>>>>>> The problem is that I don't see any distinction between the left,
>>>>>>>>> and the right eye. I would have attached images if it helps but that may
>>>>>>>>> make my email too big to be approved by the moderator.
>>>>>>>>>
>>>>>>>>> About the setup in the lab - we have 8 projectors driving this
>>>>>>>>> 4-sdied cave, 2 projectors for each wall. The projectors do active stereo,
>>>>>>>>> 2560x1600 resolution.
>>>>>>>>>
>>>>>>>>> We think the issue maybe with setting up the correct view frustum
>>>>>>>>> but not sure. Anybody seen this issue before?
>>>>>>>>> --
>>>>>>>>> Faiz Abidi | Master's Student at Virginia Tech | www.faizabidi.com
>>>>>>>>> | +1-540-998-6636
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Powered by www.kitware.com
>>>>>>>>>
>>>>>>>>> Visit other Kitware open-source projects at
>>>>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>>>>
>>>>>>>>> Please keep messages on-topic and check the ParaView Wiki at:
>>>>>>>>> http://paraview.org/Wiki/ParaView
>>>>>>>>>
>>>>>>>>> Search the list archives at:
>>>>>>>>> http://markmail.org/search/?q=ParaView
>>>>>>>>>
>>>>>>>>> Follow this link to subscribe/unsubscribe:
>>>>>>>>> http://public.kitware.com/mailman/listinfo/paraview
>>>>>>>>>
>>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Faiz Abidi | Master's Student at Virginia Tech | www.faizabidi.com
>>>>>>> | +1-540-998-6636
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Faiz Abidi | Master's Student at Virginia Tech | www.faizabidi.com |
>>>>> +1-540-998-6636
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Faiz Abidi | Master's Student at Virginia Tech | www.faizabidi.com |
>>>> +1-540-998-6636
>>>>
>>>
>>>
>>>
>>> --
>>> Faiz Abidi | Master's Student at Virginia Tech | www.faizabidi.com |
>>> +1-540-998-6636
>>>
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the ParaView Wiki at:
>>> http://paraview.org/Wiki/ParaView
>>>
>>> Search the list archives at: http://markmail.org/search/?q=ParaView
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> http://public.kitware.com/mailman/listinfo/paraview
>>>
>>>
>>
>>
>> --
>>
>>
>>
>> *| Aashish Chaudhary | Technical Leader | Kitware Inc.
>> *
>> *| http://www.kitware.com/company/team/chaudhary.html
>> <http://www.kitware.com/company/team/chaudhary.html>*
>>
>
>
>
> --
> Faiz Abidi | Master's Student at Virginia Tech | www.faizabidi.com |
> +1-540-998-6636
>
--
Faiz Abidi | Master's Student at Virginia Tech | www.faizabidi.com |
+1-540-998-6636
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