[Paraview] tile edge artifacts with volume rending in parallel mode

[Aashish Chaudhary]

Ryan,

This is a known issue and I just finished one bug with tiling and will be
looking at this bug next. Thanks for sharing the state file. I will report
back as I made progress on this issue.

Looks like you are using the OpenGL backend. Is there a possibility of you
switching to OpenGL2 backend?

- Aashish

On Wed, Oct 21, 2015 at 3:37 PM, Ryan Abernathey <ryan.abernathey at gmail.com>
wrote:

> Hello,
>
> I am trying to do volume rendering of this data:
>
> ftp://ftp.ldeo.columbia.edu/pub/rpa/paraview_netcdf/rce_rrtm303x512dx3f20_512x512x64_3km_12s_128_0000001500.nc
>
> It works fine when Paraview is in regular (serial) mode. But the rendering
> is very slow. I have 32 cores in my workstation, so I tried using Paraview
> in parallel with 16 cores. This goes MUCH faster. But unfortunately,
> artifacts are visible related to the tiling of the data
>
> This image is a screenshot from the serial case:
> [image: Inline image 6]
>
> And this is from the parallel case. Note the grid lines visible in the
> bottom slice.
> [image: Inline image 7]
>
> The state file to reproduce this case is available here:
>
> ftp://ftp.ldeo.columbia.edu/pub/rpa/paraview_netcdf/test_volume_parallel.pvsm
>
> Does anyone know how to fix these rendering issues in parallel mode?
>
> Sincere thanks,
> Ryan Abernathey
>
>
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-- 



*| Aashish Chaudhary | Technical Leader         | Kitware Inc.            *
*| http://www.kitware.com/company/team/chaudhary.html
<http://www.kitware.com/company/team/chaudhary.html>*
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