[Paraview] Volume rendering rectilinear data

[Aashish Chaudhary]

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>
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 <(518)%20881-4909>
>
> On Fri, Apr 27, 2018 at 12:23 PM, Weiguang Guan <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 <(518)%20881-4909>
>>
>> On Fri, Apr 27, 2018 at 11:13 AM, Weiguang Guan <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 <(905)%20525-9140>
>>>
>>> _______________________________________________
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>>
>>
>>
>> --
>> --
>> Weiguang Guan
>> Research Scientist
>> RHPCS, McMaster University
>> Phone: 905-525-9140 x22540 <(905)%20525-9140>
>>
>> _______________________________________________
> 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:
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