[vtkusers] Isosurface opacity problem

이현철 basalt76 at gmail.com
Thu Dec 16 22:55:19 EST 2010


Thank you for your advice

I loaded my isosurface into ParaView and set opacity under 1.0.
It looks normal ~

Is this means that the ParaView do something special to solve transparency
problem ?

I attached the result.

2010년 12월 15일 오후 11:21, Sebastien Jourdain <sebastien.jourdain at kitware.com>님의
말:

> How did you defined your unstructured grid ? It seems that some inner
> surface are detected...
> This could happen if you duplicate the points so each cell has its own
> points ?
>
> Try to load your data into ParaView and see if you can reproduce the
> problem.
>
> Seb
>
> 2010/12/15 이현철 <basalt76 at gmail.com>:
>  > Sorry to interrupt you again.
> >
> > I attach two images.
> >
> > Before and after adding depth sorting.
> > There are some differences.
> >
> > My graphics card seems not to support depth peeling.
> >
> > Thank you very mush.
> >
> > Lee.
> >
> > 2010/12/15 Sebastien Jourdain <sebastien.jourdain at kitware.com>
> >>
> >> You should enable depth peeling on the renderer to fix most of the
> >> artefact. But the rendering will be slower.
> >>
> >> Seb
> >>
> >> On Tue, Dec 14, 2010 at 10:01 AM, 이현철 <basalt76 at gmail.com> wrote:
> >> > Dears
> >> >
> >> > I visualized isosurface using vtkMarchingContourFilter from
> >> > vtkUnstructuredGrid.
> >> >
> >> > When the opacity is 1.0 , created picture looks normal.
> >> >
> >> > But when i adjust opacity to below 1.0, the picture has speckles
> depends
> >> > on the position.
> >> >
> >> > Do you have any solution ?
> >> >
> >> > I'll really appreciate it.
> >> >
> >> > Attached images
> >> >
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