Yes, that is the case. There are 200 lines , each a single cell , and
the pvtp reader splits them up fairly evenly amongst processes to begin
with. D3 is moving stuff around but it doesn't noticeably change the result.
Moreland, Kenneth wrote:
Looking at the mesa-artifacts-decomp.png image, it appears that you
have many tubes that are coincident (or at least close to coincident).
There might be z-buffer resolution problems. What happens if you run
the geometry through D3?
-Ken
On 1/15/10 10:28 AM, "burlen" <burlen.lor...@gmail.com> wrote:
FYI, I re-organized the images illustrating the bug, and made a
comparison of nvidia to mesa rendering on two cases 1) the
artifacts 2)
the parallel inconsistency, and removed the older images.
1)
http://nashi-submaster.ucsd.edu/movies/PV/tube-filter-artifact/mesa-artifacts.png
http://nashi-submaster.ucsd.edu/movies/PV/tube-filter-artifact/nvidia-no-artifacts-decomp.png
2)
http://nashi-submaster.ucsd.edu/movies/PV/tube-filter-artifact/mesa-artifacts-decomp.png
http://nashi-submaster.ucsd.edu/movies/PV/tube-filter-artifact/nvidia-no-artifacts.png
burlen wrote:
> So you are right these are artifacts not holes. Nasty looking ones at
> that. zooming in enough makes the artifacts receded toward the egdes
> of the tube. After some experimentation I'm finding that this has
> something to do with mesa. It is reproducible only when using mesa.
> Hardware rendering works fine, no artifacts.
>
> There also looks to be two things going on, 1) the artifacts, 2)
> inconsistent selection of the visible faces on parallel runs.
This is
> shown here:
>
http://nashi-submaster.ucsd.edu/movies/PV/tube-filter-artifact/decomp-8-procs.png
>
>
> I was using PV on this cluster fine back in dec to make very similar
> figures with stream tubes and didn't see any of these issues...
>
> I added the dataset to reproduce to the bug report.
>
> Moreland, Kenneth wrote:
>> It could be a rendering artifact. What happens when you zoom into
>> the problem area?
>>
>> -Ken
>>
>>
>> On 1/14/10 12:24 AM, "burlen" <burlen.lor...@gmail.com> wrote:
>>
>> Any ideas as to why tubes from the tube filter aren't closed
>> surfaces
>> now? screenshot:
>> http://public.kitware.com/Bug/view.php?id=10139
>>
>> _______________________________________________
>> 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
>>
>>
>>
>>
>> **** Kenneth Moreland
>> *** Sandia National Laboratories
>> *********** *** *** *** email: kmo...@sandia.gov
>> ** *** ** phone: (505) 844-8919
>> *** web: http://www.cs.unm.edu/~kmorel
<http://www.cs.unm.edu/%7Ekmorel>
>> <http://www.cs.unm.edu/%7Ekmorel>
>>
>
**** Kenneth Moreland
*** Sandia National Laboratories
***********
*** *** *** email: kmo...@sandia.gov
** *** ** phone: (505) 844-8919
*** web: http://www.cs.unm.edu/~kmorel
<http://www.cs.unm.edu/%7Ekmorel>
_______________________________________________
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
