Hi,<br>I ran into the "empty not supported extensions list", with linux/ATI/Mesa.<br>By reading, I found that the problem is not due to extensions, but due<br>to:<blockquote>if(strstr(gl_vendor,"ATI")!=0)<br>
{<br> this->LoadExtensionsSucceeded=0;<br> return;<br> }<br></blockquote>and<br><div style="margin-left: 40px;"> if(strstr(gl_version,"Mesa")!=0)<br> {<br> this->LoadExtensionsSucceeded=0;<br>
return;<br> }<br></div><br>(Code from ParaView3/VTK/VolumeRendering/vtkOpenGLGPUVolumeRayCastMapper.cxx)<br><br>My feeling is that GPU raycast mapping is impossible with ATI card.<br>My question is: Am I wrong? If there is any, what should I do to enable GPU rendering on ATI?<br>
<br>Thanks a lot!<br><br>Jerome<br>(ps: I tried with an NVidia quadro and... wow! Thanks!)<br><br><br><br><div class="gmail_quote">2010/3/2 Wagner Sales <span dir="ltr"><<a href="mailto:wsales@gmail.com">wsales@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi all,<br>
<br>
Sorry by ask this same question twice times. I know about Mac issues.<br>
But I'm starting in parallel volume rendering playground, and I really<br>
don't know how to take ( if possible ) advantages from GPU volume<br>
rendering in a parallel environment. May be my knowledge aren't the<br>
sufficient to know this by myself. Are advantages on this field? For<br>
example, can we render a large dataset in multiple machines using the<br>
GPU power instead the current approaches, that's relies ( at least I<br>
know ) on the CPUs? And, if possible, are some SLI support too?<br>
<br>
Best regards,<br>
<br>
Wagner<br>
<br>
2010/3/1 Eric E. Monson <<a href="mailto:emonson@cs.duke.edu">emonson@cs.duke.edu</a>>:<br>
<div><div></div><div class="h5">> Hey all,<br>
><br>
> Thanks for the feedback. Yup, I can get it to error out just as you said! :)<br>
><br>
> 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.<br>
><br>
> Talk to you later,<br>
> -Eric<br>
><br>
><br>
> On Mar 1, 2010, at 1:54 PM, Francois Bertel wrote:<br>
><br>
>> Hello,<br>
>><br>
>> The GPU Rast Mapper does not work on Mac so it is skipped to avoid bad behavior.<br>
>><br>
>> It is skipped because:<br>
>><br>
>> 1. on Snow Leopard with an nVidia card, the GPU Ray Cast mapper<br>
>> triggers a bug in the OpenGL driver (that we cannot locate precisely<br>
>> enough) and the driver will exit the application with:<br>
>><br>
>> (0) : fatal error C9999: Nested functions, aborting!<br>
>><br>
>> or:<br>
>><br>
>> (0) : fatal error C9999: *** exception during compilation ***<br>
>> Cg compiler terminated due to fatal error<br>
>><br>
>><br>
>> 2. On Leopard, a user reported a corrupted image.<br>
>><br>
>> If you are adventurous, and see what happen for your specific<br>
>> configuration, you can comment out the lines in<br>
>> VTK/VolumeRendering/vtkOpenGLGPUVolumeRayCastMapper.cxx that skip the<br>
>> Macs:<br>
>><br>
>> // It does not work on Apple OS X Snow Leopard with nVidia.<br>
>> // There is a bug in the OpenGL driver with an error in the<br>
>> // Cg compiler about an infinite loop.<br>
>> #ifdef __APPLE__<br>
>> this->LoadExtensionsSucceeded=0;<br>
>> return;<br>
>> #endif<br>
>><br>
>> Regards<br>
>><br>
>> On Mon, Mar 1, 2010 at 1:05 PM, Aashish Chaudhary<br>
>> <<a href="mailto:aashish.chaudhary@kitware.com">aashish.chaudhary@kitware.com</a>> wrote:<br>
>>> Eric,<br>
>>><br>
>>> Yes you do need to have certain extensions. Now the mapper I have not<br>
>>> written myself and hence I am forwarding this email to vtk users list. I<br>
>>> hope that the original author would respond to it.<br>
>>><br>
>>> I will see if we can produce a better message which could list the missing<br>
>>> extensions.<br>
>>><br>
>>> Thanks for testing it out.<br>
>>><br>
>>> ~Regards,<br>
>>> Aashish<br>
>>><br>
>>><br>
>>> On Mon, Mar 1, 2010 at 12:56 PM, Eric E. Monson <<a href="mailto:emonson@cs.duke.edu">emonson@cs.duke.edu</a>> wrote:<br>
>>>><br>
>>>> Hey Aashish,<br>
>>>> I've been having trouble with it, too, on my Mac (OS X 10.6.2, PV compiled<br>
>>>> serial x86_64 arch updated from CVS and rebuilt today, CMake 2.9.20100113).<br>
>>>> Are there any special hardware requirements, then? I can see the GPU Volume<br>
>>>> Mapper option, but when I switch over to that from the "Fixed point" mapper<br>
>>>> I get this error:<br>
>>>> ERROR:<br>
>>>> In /Users/emonson/Programming/ParaView_cvs/ParaView3/VTK/VolumeRendering/vtkOpenGLGPUVolumeRayCastMapper.cxx,<br>
>>>> line 4110<br>
>>>> vtkOpenGLGPUVolumeRayCastMapper (0x12082cc00): Rendering failed because<br>
>>>> the following OpenGL extensions are required but not supported:<br>
>>>><br>
>>>> (Just as this shows, the list of OpenGL extensions it says are required<br>
>>>> but not supported is empty...) My graphics card is a NVIDIA GeForce 8800 GT.<br>
>>>> Thanks,<br>
>>>> -Eric<br>
>>>> ------------------------------------------------------<br>
>>>> Eric E Monson<br>
>>>> Duke Visualization Technology Group<br>
>>>><br>
>>>> On Mar 1, 2010, at 11:55 AM, Aashish Chaudhary wrote:<br>
>>>><br>
>>>> No there is no special option required but you would have to update your<br>
>>>> paraview cvs copy as the code got into cvs last thursday.<br>
>>>><br>
>>>> Can you update and compile again?<br>
>>>><br>
>>>> Thanks,<br>
>>>><br>
>>>><br>
>>>><br>
>>>> On Sun, Feb 28, 2010 at 2:27 PM, Pierre-Olivier Dallaire<br>
>>>> <<a href="mailto:pierre-olivier.dallaire@videotron.ca">pierre-olivier.dallaire@videotron.ca</a>> wrote:<br>
>>>>><br>
>>>>> Hi,<br>
>>>>> Do we need to enable a special option in the CMakeCache.txt file in<br>
>>>>> order to get this feature ?<br>
>>>>> I compiled the CVS version on Mac and cannot access the GPU option for<br>
>>>>> volume rendering.<br>
>>>>> Regards,<br>
>>>>> PO<br>
>>>>> On 2010-02-26, at 10:58 AM, Aashish Chaudhary wrote:<br>
>>>>><br>
>>>>> All,<br>
>>>>><br>
>>>>> I am pleased to announce that ParaView3 now has GPU based volume<br>
>>>>> rendering from VTKEdge. Its currently in CVS and should be able to make<br>
>>>>> into 3.8 release.<br>
>>>>> Currently it does not work in tile display mode but we are hoping to fix<br>
>>>>> it in near future. Any bug reports are welcome.<br>
>>>>><br>
>>>>> Attached is the screen shot.<br>
>>>>><br>
>>>>> ~Regards,<br>
>>>>><br>
>>>>> --<br>
>>>>> | Aashish Chaudhary<br>
>>>>> | R&D Engineer<br>
>>>>> | Kitware Inc.<br>
>>>>> | <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
>>>>> <Screenshot.jpg>_______________________________________________<br>
>>>>> Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
>>>>><br>
>>>>> Visit other Kitware open-source projects at<br>
>>>>> <a href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
>>>>><br>
>>>>> Please keep messages on-topic and check the ParaView Wiki at:<br>
>>>>> <a href="http://paraview.org/Wiki/ParaView" target="_blank">http://paraview.org/Wiki/ParaView</a><br>
>>>>><br>
>>>>> Follow this link to subscribe/unsubscribe:<br>
>>>>> <a href="http://www.paraview.org/mailman/listinfo/paraview" target="_blank">http://www.paraview.org/mailman/listinfo/paraview</a><br>
>>>>><br>
>>>><br>
>>>><br>
>>>><br>
>>>> --<br>
>>>> | Aashish Chaudhary<br>
>>>> | R&D Engineer<br>
>>>> | Kitware Inc.<br>
>>>> | <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
>>>> _______________________________________________<br>
>>>> Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
>>>><br>
>>>> Visit other Kitware open-source projects at<br>
>>>> <a href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
>>>><br>
>>>> Please keep messages on-topic and check the ParaView Wiki at:<br>
>>>> <a href="http://paraview.org/Wiki/ParaView" target="_blank">http://paraview.org/Wiki/ParaView</a><br>
>>>><br>
>>>> Follow this link to subscribe/unsubscribe:<br>
>>>> <a href="http://www.paraview.org/mailman/listinfo/paraview" target="_blank">http://www.paraview.org/mailman/listinfo/paraview</a><br>
>>>><br>
>>><br>
>>><br>
>>><br>
>>> --<br>
>>> | Aashish Chaudhary<br>
>>> | R&D Engineer<br>
>>> | Kitware Inc.<br>
>>> | <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
>>><br>
>>> _______________________________________________<br>
>>> Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
>>><br>
>>> Visit other Kitware open-source projects at<br>
>>> <a href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
>>><br>
>>> Please keep messages on-topic and check the VTK FAQ at:<br>
>>> <a href="http://www.vtk.org/Wiki/VTK_FAQ" target="_blank">http://www.vtk.org/Wiki/VTK_FAQ</a><br>
>>><br>
>>> Follow this link to subscribe/unsubscribe:<br>
>>> <a href="http://www.vtk.org/mailman/listinfo/vtkusers" target="_blank">http://www.vtk.org/mailman/listinfo/vtkusers</a><br>
>>><br>
>>><br>
>><br>
>><br>
>><br>
>> --<br>
>> François Bertel, PhD | Kitware Inc. Suite 204<br>
>> 1 (518) 371 3971 x113 | 28 Corporate Drive<br>
>> | Clifton Park NY 12065, USA<br>
><br>
> _______________________________________________<br>
> Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
><br>
> Visit other Kitware open-source projects at <a href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
><br>
> Please keep messages on-topic and check the VTK FAQ at: <a href="http://www.vtk.org/Wiki/VTK_FAQ" target="_blank">http://www.vtk.org/Wiki/VTK_FAQ</a><br>
><br>
> Follow this link to subscribe/unsubscribe:<br>
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><br>
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<br>
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</div></div></blockquote></div><br>