[Paraview] Differences between OpenGL and OpenGL2 versions of ParaView

Mon Nov 16 09:11:34 EST 2015

I'd be happy to address this if someone can explain to me what the problem
is. A failing VTK test would be really nice as I'm a bit lost from the
email. I just don't understand the specifics of what is going on here. It
sounds like some sort of CompositePolyData2 with a field data where the
field data contains block colors and the field data is on the
first/last/all block of the dataset? Or maybe I'm confused :-) Do you know
where the code to handle this for OpenGL1 is?

Thanks
Ken

On Fri, Nov 13, 2015 at 2:16 AM, Adam Lyon <lyon at fnal.gov> wrote:

> Hi - I know you all are busy preparing for SC15, but this bug persists in
> the ParaView v5 release candidate, which makes it difficult for me to use.
> Is there a chance this problem can be looked at and resolved before the
> final release? Thanks! Happy SC15!! -- A
>
> *------*
>
> *Adam L. Lyon*
> *Scientist; Associate Division Head for Systems for Scientific
> Applications*
>
> Scientific Computing Division & Muon g-2 Experiment
> Fermi National Accelerator Laboratory
> 630 840 5522 office
> www.fnal.gov
> lyon at fnal.gov
>
> Connect with us!
> Newsletter <http://www.fnal.gov/pub/today/>  |  Facebook
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> <https://twitter.com/Fermilab>
>
> On Fri, Aug 7, 2015 at 12:32 PM, Utkarsh Ayachit <
> utkarsh.ayachit at kitware.com> wrote:
>
>> Adam,
>>
>> The problem is that the OpenGL2 implementation doesn't work correctly for
>> field-data arrays yet.
>> I've reported a bug: http://www.paraview.org/Bug/view.php?id=15627
>>
>> We'll have in tracked down soon.
>>
>> Utkarsh
>>
>> On Mon, Aug 3, 2015 at 2:59 PM, Adam Lyon <lyon at fnal.gov> wrote:
>>
>>> Hi Joachim, Do you want me to send in a bug report for these problems? I
>>> assume there's no work-around that I can do to make things work. Using
>>> OpenGL2 is quite a bit faster, so I'm hoping a fix can come out soon.
>>> Thanks! -- Adam
>>>
>>> *------*
>>>
>>> *Adam L. Lyon*
>>> *Scientist; Associate Division Head for Systems for Scientific
>>> Applications*
>>>
>>> Scientific Computing Division & Muon g-2 Experiment
>>> Fermi National Accelerator Laboratory
>>> 630 840 5522 office
>>> www.fnal.gov
>>> lyon at fnal.gov
>>>
>>> Connect with us!
>>> Newsletter <http://www.fnal.gov/pub/today/>  |  Facebook
>>> <https://www.facebook.com/Fermilab>  |  Twitter
>>> <https://twitter.com/Fermilab>
>>>
>>> On Fri, Jul 31, 2015 at 10:53 AM, Adam L Lyon <lyon at fnal.gov> wrote:
>>>
>>>> Hi Joachim - Yes, I noticed that the default color is now
>>>> vtkBlockColors. However I changed that to the "color" vector in my data and
>>>> that change was not honored by the program. Thanks, Adam
>>>>
>>>> *------*
>>>>
>>>> *Adam L. Lyon*
>>>> *Scientist; Associate Division Head for Systems for Scientific
>>>> Applications*
>>>>
>>>> Scientific Computing Division & Muon g-2 Experiment
>>>> Fermi National Accelerator Laboratory
>>>> 630 840 5522 office
>>>> www.fnal.gov
>>>> lyon at fnal.gov
>>>>
>>>> Connect with us!
>>>> Newsletter <http://www.fnal.gov/pub/today/>  |  Facebook
>>>> <https://www.facebook.com/Fermilab>  |  Twitter
>>>> <https://twitter.com/Fermilab>
>>>>
>>>> On Fri, Jul 31, 2015 at 2:41 AM, Joachim Pouderoux <
>>>> joachim.pouderoux at kitware.com> wrote:
>>>>
>>>>> Adam,
>>>>>
>>>>> The color difference can be explained by the default coloring mode
>>>>> introduced recently (before the git tag version you tested with).
>>>>> Multiblocks are now automatically colored by blocks. Toggle the Color
>>>>> Legend and see the coloring array, "vtkBlockColors" is selected wereas in
>>>>> previous version it was Solid Color I guess.
>>>>> Regarding the missing pieces, I can tell that with the same git
>>>>> version and with the OpenGL backend 1 (the old), all pieces are correctly
>>>>> drawn. What is specific is that this missing blocks (the data has like a
>>>>> global gemetry block + all the internal pieces) are the last block if the
>>>>> first level block hierarchy.
>>>>>
>>>>> Joachim
>>>>>
>>>>>
>>>>> *Joachim Pouderoux*
>>>>>
>>>>> *PhD, Technical Expert*
>>>>> *Kitware SAS <http://www.kitware.fr>*
>>>>>
>>>>>
>>>>> 2015-07-30 22:19 GMT+02:00 Adam Lyon <lyon at fnal.gov>:
>>>>>
>>>>>> Hi,  I'm trying to use ParaView built with OpenGL2, hoping to see
>>>>>> some speed improvement when I interact with my visualization. Indeed for a
>>>>>> complicated geometry I see significant speed up (e.g. ~25 fps with OpenGL2
>>>>>> vs. 5 fps with regular ParaView). But I also see serious errors in the
>>>>>> display. I've attached two images of our "g-2 muon storage ring" (never
>>>>>> mind what it actually is, though it is very cool :-) ..
>>>>>>
>>>>>> [image: Inline image 1]
>>>>>>
>>>>>> The first, mostly blue image, is from regular ParaView (downloaded
>>>>>> Mac binary 4.3.1 64 bit)  and is what the ring is supposed to look like.
>>>>>> There is a color vector selected and I've unchecked "Map scalars" so that
>>>>>> the colors are "true". And indeed the RGB color values in the vector are
>>>>>> what is shown on the display.
>>>>>>
>>>>>>
>>>>>> [image: Inline image 2]
>>>>>> The next image, with a chunk on the left side missing, is from the
>>>>>> OpenGL2 ParaView (Mac built from source 4.3.1-882-gbdceec7 64 bit)
>>>>>> configured identically as the other ParaView. So it should look identical
>>>>>> to the mostly blue picture. Along with the missing chunk, you see the
>>>>>> colors look very wrong. What's even stranger is that the missing chunk is
>>>>>> really missing - not invisible - the visualization is made of multiblock
>>>>>> datasets, and right clicking where a structure should be only brings up the
>>>>>> link camera option.
>>>>>>
>>>>>> You can try this yourself -- see
>>>>>> https://www.dropbox.com/sh/900ocfc90v0w3r6/AACmqz8kVrGPUMnJbpxAFOzBa?dl=0
>>>>>> . The "gm2ring.zip" file has gm2ring.vtm (with the corresponding gm2ring
>>>>>> directory) and gm2ring.pvsm to restore my configuration.
>>>>>>
>>>>>> I'm looking forward to using the OpenGL2 version when it works
>>>>>> better. I hope this helps in working out its kinks (or hoping to find out
>>>>>> I've built or configured something incorrectly). Let me know how I can
>>>>>> help!  Thanks! -- Adam
>>>>>> *------*
>>>>>>
>>>>>> *Adam L. Lyon*
>>>>>> *Scientist; Associate Division Head for Systems for Scientific
>>>>>> Applications*
>>>>>>
>>>>>> Scientific Computing Division & Muon g-2 Experiment
>>>>>> Fermi National Accelerator Laboratory
>>>>>> 630 840 5522 office
>>>>>> www.fnal.gov
>>>>>> lyon at fnal.gov
>>>>>>
>>>>>> Connect with us!
>>>>>> Newsletter <http://www.fnal.gov/pub/today/>  |  Facebook
>>>>>> <https://www.facebook.com/Fermilab>  |  Twitter
>>>>>> <https://twitter.com/Fermilab>
>>>>>>
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>>>>>>
>>>>>
>>>>
>>>
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>>
>
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-- 
Ken Martin PhD
Chairman & CFO
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065
518 371 3971

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