[Paraview] Volume Render Plot - Unreasonable results with vector components or magnitude

[Andy Bauer]

Hi,

To add to Cory's feedback -- installers and source code are available for
the 5.2 release candidate if you'd like to try it out and see if it's
fixed. If it's not fixed and you let us know ASAP, we may be able to get it
fixed in time for the 5.2 release. You can get the release candidate and
paraview.org/download -- just choose the 5.2 RC3.

Best,
Andy

On Thu, Nov 3, 2016 at 9:17 AM, Cory Quammen <cory.quammen at kitware.com>
wrote:

> Hi Mathias and Andrew,
>
> Volume rendering by vector component should be fixed in the ParaView
> 5.2 release, due out in the next two weeks.
>
> See https://gitlab.kitware.com/paraview/paraview/merge_requests/1105
>
> Thanks,
> Cory
>
> On Thu, Nov 3, 2016 at 7:06 AM, Andrew <antech777 at gmail.com> wrote:
> > Hello. I noticed the same behaviour in ParaView 4.3 on CentOS 6.7. Looks
> > like bug. Worked around with calculating the velocity magnitude as
> scalar.
> > There is also another bug or feature of volume rendering: I couldn't
> make it
> > render for all domains, it only renders one domain (for example, when I
> load
> > a CFD study results in EnSight Gold format).
> >
> > 2016-11-03 13:51 GMT+03:00 Dietzel Mathias <M.Dietzel at iab-weimar.de>:
> >>
> >> Hello everyone,
> >>
> >>
> >>
> >> I am using Paraview’s Volume Render plot to visualize a velocity field
> >> inside some technical equipment. In case of plotting a component of the
> >> vector field or the magnitude of the vector (both from the drop-down
> menu)
> >> with volume render I get unreasonable results, e.g. minimum or maximum
> zones
> >> are not shown correctly or the flow direction seems wrong. However, if I
> >> calculate a scalar value from the vector that corresponds to the
> component
> >> or to the magnitude (e.g. using the calculator filter in Paraview) and
> then
> >> plot by volume render, the fluid field is represented correctly.
> >>
> >>
> >>
> >> The data itself seems OK since a surface or slice plot leads to the same
> >> (correct) results, no matter  whether I use the vector component
> directly or
> >> the scalar value. I tested the behavior with several data sets. I am
> using
> >> Paraview 4.3.1 64-bit and Paraview 5.1.2 64-bit – both show the same
> >> behavior.
> >>
> >>
> >>
> >> I appreciate any comment.
> >>
> >>
> >>
> >> Best regards
> >>
> >> Mathias Dietzel
> >>
> >>
> >>
> >>
> >>
> >>
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> >>
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> >>
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> >>
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> >
> >
> > _______________________________________________
> > 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
> >
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> >
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>
>
>
> --
> Cory Quammen
> Staff R&D Engineer
> Kitware, Inc.
> _______________________________________________
> 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
>
> Search the list archives at: http://markmail.org/search/?q=ParaView
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview
>
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