[vtkusers] Isosurface opacity problem

[이현철]

Send it again because of too big files.

2010년 12월 17일 오후 1:32, 이현철 <basalt76 at gmail.com>님의 말:

> I'm very sorry for bothering you.
>
> I got something interesting.
>
> In the ParaView, when I set Representation with "Surface with edges".
>
> The isosurface image went through vtkMarchingContourFilter has the
> triangles.
> But the original image looks normal.
>
> I have used vtkCleanPolyData and vtkPolyDataNormals.
>
> I attached two iamges.
>
> Thank you ver much.
>
> Lee.
>
> 2010년 12월 17일 오후 12:55, 이현철 <basalt76 at gmail.com>님의 말:
>
>  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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>>
>>
>
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