[Paraview] Volume rendering rectilinear data

[Weiguang Guan]

Resampling it into vtkImageData is what I want to take in the current 
circumstance. Thank you both. Have a great weekend!

Weiguang

On 4/27/2018 12:53 PM, Aashish Chaudhary wrote:
> I am not aware of any plans for  volume rendering for rectilinear 
> volume but as I David mentioned, sampling it to the image space is 
> what we have discussed / talked about.
>
> - aashish
>
> On Fri, Apr 27, 2018 at 12:30 PM David E DeMarle 
> <dave.demarle at kitware.com <mailto:dave.demarle at kitware.com>> wrote:
>
>     Not that I know of.
>
>     We are more likely to make the conversion to image based volume
>     rendering automatic, faster and more precise.
>
>
>     David E DeMarle
>     Kitware, Inc.
>     Principal Engineer
>     21 Corporate Drive
>     Clifton Park, NY 12065-8662
>     Phone: 518-881-4909 <tel:%28518%29%20881-4909>
>
>     On Fri, Apr 27, 2018 at 12:23 PM, Weiguang Guan
>     <guanw at rhpcs.mcmaster.ca <mailto:guanw at rhpcs.mcmaster.ca>> wrote:
>
>         Hi David,
>
>         Thanks for confirming it. Does Kitware have a plan to
>         implement volume rendering for rectilinear volume? You see the
>         spectrum from vtkImageData, to vtkRectilinearGrid,
>         vtkStructuredGrid --- volume rendering is implemented on both
>         ends but not for the middle one, which is a bit odd to the user.
>
>         Best,
>         Weiguang
>
>
>
>
>         On 4/27/2018 12:06 PM, David E DeMarle wrote:
>
>>         You are correct it will not directly volume render
>>         vtkRectilinearGrids.
>>
>>         Use threshold filter (all values) to map to a
>>         vtkUnstructuredGrid for direct rendering but at a cost of
>>         memory explosion.
>>         Apply the resample to image filter to map to vtkImageData for
>>         fast volume rendering, but at a cost of trading off precision
>>         for memory size.
>>
>>
>>         David E DeMarle
>>         Kitware, Inc.
>>         Principal Engineer
>>         21 Corporate Drive
>>         <https://maps.google.com/?q=21+Corporate+Drive+%0D%0A++++++++++++++++++++Clifton+Park,+NY+12065&entry=gmail&source=g>
>>         Clifton Park, NY 12065-8662
>>         Phone: 518-881-4909 <tel:%28518%29%20881-4909>
>>
>>         On Fri, Apr 27, 2018 at 11:13 AM, Weiguang Guan
>>         <guanw at rhpcs.mcmaster.ca <mailto:guanw at rhpcs.mcmaster.ca>> wrote:
>>
>>             I didn't a test and I'm surprised that Paraview cannot do
>>             volume rendering on rectilinear data. Can someone confirm
>>             it or I made a mistake?
>>
>>             Cheers,
>>             Weiguang
>>
>>             -- 
>>             --
>>             Weiguang Guan
>>             Research Scientist
>>             RHPCS, McMaster University
>>             Phone: 905-525-9140 x22540 <tel:%28905%29%20525-9140>
>>
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>>
>
>
>         -- 
>         --
>         Weiguang Guan
>         Research Scientist
>         RHPCS, McMaster University
>         Phone:905-525-9140 x22540  <tel:%28905%29%20525-9140>
>
>     _______________________________________________
>     Powered by www.kitware.com <http://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
>
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-- 
--
Weiguang Guan
Research Scientist
RHPCS, McMaster University
Phone: 905-525-9140 x22540

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