[vtkusers] vtkGPUVolumeRayCastMapper bad quality

[Aashish Chaudhary]

On Thu, Jan 23, 2014 at 11:52 AM, Michael Xanadu <
xanadu.michael at googlemail.com> wrote:

> Thank you for your offer Aashish. Unfortunatelly I can't send the code
> because it is very big, very complicated and also commercial. But I did
> some debugging. I think the reason for the problem is not the GPU mapper or
> the import of the data, but somewhere in the pipeline behind the mapper.
> Maybe Renderwindow or interactor or something else. I think some module or
> an attached module works as a bottleneck for the whole visualization
> pipeline.
>

Yes, I agree with your thinking here.  It does not seems to be a volume
rendering issue. If you can create a example code that can replicate this
problem, then I can help.

- Aashish

>
>
> 2014/1/23 Aashish Chaudhary <aashish.chaudhary at kitware.com>
>
>> Would it be possible for you to send Qt-based example code? And may be
>> data as well?
>>
>> Thanks,
>>
>>
>>
>> On Thu, Jan 23, 2014 at 10:55 AM, Michael Xanadu <
>> xanadu.michael at googlemail.com> wrote:
>>
>>> YES!
>>>
>>>
>>>
>>> 2014/1/23 Aashish Chaudhary <aashish.chaudhary at kitware.com>
>>>
>>>> And this is only happening during the interactions?
>>>>
>>>> - Aashish
>>>>
>>>>
>>>>
>>>> On Thu, Jan 23, 2014 at 10:45 AM, Michael Xanadu <
>>>> xanadu.michael at googlemail.com> wrote:
>>>>
>>>>> Hm, I updated vtkGPUVolumeRayCastMapper inside vtkSmartVolumeMapper in
>>>>> that way. Unfortunatelly, it does not work. Any other thoughts?
>>>>>
>>>>>
>>>>>
>>>>> 2014/1/23 Massinissa Bandou <Massinissa.Bandou at usherbrooke.ca>
>>>>>
>>>>>>
>>>>>> try this:
>>>>>> vtkSmartPointer<vtkGPUVolumeRayCastMapper> volumeMapper =
>>>>>> vtkSmartPointer<vtkGPUVolumeRayCastMapper>::New();
>>>>>> volumeMapper->AutoAdjustSampleDistancesOff();
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> 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
>>>>
>>>
>>>
>>
>>
>> --
>> | Aashish Chaudhary
>> | R&D Engineer
>> | Kitware Inc.
>> | www.kitware.com
>>
>
>


-- 
| Aashish Chaudhary
| R&D Engineer
| Kitware Inc.
| www.kitware.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20140123/f1a22ac8/attachment.html>