[vtkusers] Stereo rendering for some renderers

[Aashish Chaudhary]

glIntercept is fine. You may want to try gDEBugger (
http://www.gremedy.com/free_license.php) or Nsight (
http://www.nvidia.com/object/nsight.html) if it helps.

Can you describe your setup in bit more detail and what calls you are
making on vtkRenderer and vtkRenderWindow.

- Aashish


On Wed, Feb 5, 2014 at 11:03 AM, Oskar Kirmis <kirmis at st.ovgu.de> wrote:

>  Thanks for the reply.
>
> Yes, we're using anaglyph stereo.
>
>
> > Would it be possible for you to create a tiny example that can replicate
> the issue you have are having?  I am
> > assuming that you are doing anaglyphic stereo rendering?  I can look
> into the code
> > but it would be so much easier if we have some example.
>
> That might not be so easy as the bug currently occurs in a huge software
> project. Creating a small example might not be so easy as I don't really
> know vtk and opengl. We're just trying to fix bugs in older code.
>
> But maybe you have some ideas where we could look for. Maybe something
> (buffers, flags, ...) was not cleared correctly?
> I am currently trying to find the problem using glIntercept. Or do you
> have any other tipps for debugging opengl?
>
> Again, thank you.
>
> Am 05.02.2014 16:05, schrieb Aashish Chaudhary:
>
> Would it be possible for you to create a tiny example that can replicate
> the issue you have are having?  I am assuming that you are doing anaglyphic
> stereo rendering?  I can look into the code
> but it would be so much easier if we have some example.
>
>  Thanks,
>
>
>
> On Wed, Feb 5, 2014 at 10:01 AM, Oskar Kirmis <kirmis at st.ovgu.de> wrote:
>
>>  Yes, that is correct.
>>
>> Am 05.02.2014 15:03, schrieb Aashish Chaudhary:
>>
>>
>>
>>
>> On Wed, Feb 5, 2014 at 4:23 AM, Oskar Kirmis <kirmis at st.ovgu.de> wrote:
>>
>>> Hi there,
>>>
>>> it took some time to test everything you suggested as I didn't have much
>>> time for it. It turns out that stereo rendering is disabled using the
>>> methods mentioned here, but I ran into some other strange, stereo-related
>>> problems in rendering. When I now render any 2D objects with stereo enabled
>>> in the render window but disabled in the camera, the first object has is
>>> rendered in stereo. Once I add a 3D poly data object to the renderer,
>>> everything is fine and the 2D object is rendered non-stereo. When I then
>>> remove the 3D object, the problem appears again.
>>>
>>>
>>  Just to make it clear:
>>
>>  You have 2D object -- You get stereo but you want mono
>> You add 3D object to the scene - You get stereo and 2D is rendered in mono
>> You remove 3D object - you get stereo for your 2D scene
>>
>>  Now I am assuming your 2D and 3D scene are part of different renderer?
>>
>>
>>
>>> I don't know how vtk works internally but for me it seems like clearing
>>> a property is missing. Any hints?
>>>
>>>
>>> Oskar
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>>
>>
>>
>>  --
>> | Aashish Chaudhary
>> | R&D Engineer
>> | Kitware Inc.
>> | www.kitware.com
>>
>>
>>
>> _______________________________________________
>> 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 VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Follow this link to subscribe/unsubscribe:
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>>
>
>
>  --
> | Aashish Chaudhary
> | R&D Engineer
> | Kitware Inc.
> | www.kitware.com
>
>
>
> _______________________________________________
> 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 VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>
>


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