[vtkusers] [Paraview] GPU based volume rendering in ParaView

Mon Mar 1 18:35:13 EST 2010

Hi all,

Sorry by ask this same question twice times. I know about Mac issues.
But I'm starting in parallel volume rendering playground, and I really
don't know how to take ( if possible ) advantages from GPU volume
rendering in a parallel environment. May be my knowledge aren't the
sufficient to know this by myself. Are advantages on this field? For
example, can we render a large dataset in multiple machines using the
GPU power instead the current approaches, that's relies ( at least I
know ) on the CPUs? And, if possible, are some SLI support too?

Best regards,

Wagner

2010/3/1 Eric E. Monson <emonson at cs.duke.edu>:
> Hey all,
>
> Thanks for the feedback. Yup, I can get it to error out just as you said! :)
>
> I guess I'd seen something about this on the list regarding VTKEdge, but hadn't remembered. Please let us all know, though, if a solution pops up.
>
> Talk to you later,
> -Eric
>
>
> On Mar 1, 2010, at 1:54 PM, Francois Bertel wrote:
>
>> Hello,
>>
>> The GPU Rast Mapper does not work on Mac so it is skipped to avoid bad behavior.
>>
>> It is skipped because:
>>
>> 1. on Snow Leopard with an nVidia card, the GPU Ray Cast mapper
>> triggers a bug in the OpenGL driver (that we cannot locate precisely
>> enough) and the driver will exit the application with:
>>
>> (0) : fatal error C9999: Nested functions, aborting!
>>
>> or:
>>
>> (0) : fatal error C9999: *** exception during compilation ***
>> Cg compiler terminated due to fatal error
>>
>>
>> 2. On Leopard, a user reported a corrupted image.
>>
>> If you are adventurous, and see what happen for your specific
>> configuration, you can comment out the lines in
>> VTK/VolumeRendering/vtkOpenGLGPUVolumeRayCastMapper.cxx  that skip the
>> Macs:
>>
>>  // It does not work on Apple OS X Snow Leopard with nVidia.
>>  // There is a bug in the OpenGL driver with an error in the
>>  // Cg compiler about an infinite loop.
>> #ifdef __APPLE__
>>  this->LoadExtensionsSucceeded=0;
>>  return;
>> #endif
>>
>> Regards
>>
>> On Mon, Mar 1, 2010 at 1:05 PM, Aashish Chaudhary
>> <aashish.chaudhary at kitware.com> wrote:
>>> Eric,
>>>
>>> Yes you do need to have certain extensions. Now the mapper I have not
>>> written myself and hence I am forwarding this email to vtk users list. I
>>> hope that the original author would respond to it.
>>>
>>> I will see if we can produce a better message which could list the missing
>>> extensions.
>>>
>>> Thanks for testing it out.
>>>
>>> ~Regards,
>>> Aashish
>>>
>>>
>>> On Mon, Mar 1, 2010 at 12:56 PM, Eric E. Monson <emonson at cs.duke.edu> wrote:
>>>>
>>>> Hey Aashish,
>>>> I've been having trouble with it, too, on my Mac (OS X 10.6.2, PV compiled
>>>> serial x86_64 arch updated from CVS and rebuilt today, CMake 2.9.20100113).
>>>> Are there any special hardware requirements, then? I can see the GPU Volume
>>>> Mapper option, but when I switch over to that from the "Fixed point" mapper
>>>> I get this error:
>>>> ERROR:
>>>> In /Users/emonson/Programming/ParaView_cvs/ParaView3/VTK/VolumeRendering/vtkOpenGLGPUVolumeRayCastMapper.cxx,
>>>> line 4110
>>>> vtkOpenGLGPUVolumeRayCastMapper (0x12082cc00): Rendering failed because
>>>> the following OpenGL extensions are required but not supported:
>>>>
>>>> (Just as this shows, the list of OpenGL extensions it says are required
>>>> but not supported is empty...) My graphics card is a NVIDIA GeForce 8800 GT.
>>>> Thanks,
>>>> -Eric
>>>> ------------------------------------------------------
>>>> Eric E Monson
>>>> Duke Visualization Technology Group
>>>>
>>>> On Mar 1, 2010, at 11:55 AM, Aashish Chaudhary wrote:
>>>>
>>>> No there is no special option required but you would have to update your
>>>> paraview cvs copy as the code got into cvs last thursday.
>>>>
>>>> Can you update and compile again?
>>>>
>>>> Thanks,
>>>>
>>>>
>>>>
>>>> On Sun, Feb 28, 2010 at 2:27 PM, Pierre-Olivier Dallaire
>>>> <pierre-olivier.dallaire at videotron.ca> wrote:
>>>>>
>>>>> Hi,
>>>>> Do  we need to enable a special option in the CMakeCache.txt file in
>>>>> order to get this feature ?
>>>>> I compiled the CVS version on Mac and cannot access the GPU option for
>>>>> volume rendering.
>>>>> Regards,
>>>>> PO
>>>>> On 2010-02-26, at 10:58 AM, Aashish Chaudhary wrote:
>>>>>
>>>>> All,
>>>>>
>>>>> I am pleased to announce that ParaView3 now has GPU based volume
>>>>> rendering  from VTKEdge. Its currently in CVS and should be able to make
>>>>> into 3.8 release.
>>>>> Currently it does not work in tile display mode but we are hoping to fix
>>>>> it in near future. Any bug reports are welcome.
>>>>>
>>>>> Attached is the screen shot.
>>>>>
>>>>> ~Regards,
>>>>>
>>>>> --
>>>>> | Aashish Chaudhary
>>>>> | R&D Engineer
>>>>> | Kitware Inc.
>>>>> | www.kitware.com
>>>>> <Screenshot.jpg>_______________________________________________
>>>>> 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
>>>>>
>>>>> Follow this link to subscribe/unsubscribe:
>>>>> http://www.paraview.org/mailman/listinfo/paraview
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> | 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 ParaView Wiki at:
>>>> http://paraview.org/Wiki/ParaView
>>>>
>>>> Follow this link to subscribe/unsubscribe:
>>>> http://www.paraview.org/mailman/listinfo/paraview
>>>>
>>>
>>>
>>>
>>> --
>>> | 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
>>>
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>>>
>>>
>>
>>
>>
>> --
>> François Bertel, PhD  | Kitware Inc. Suite 204
>> 1 (518) 371 3971 x113 | 28 Corporate Drive
>>                      | Clifton Park NY 12065, USA
>
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