[vtkusers] Smart volumetric rendering like Paraview

[Robin Picou]

Hi Aashish,

Here's a link with the source file and some .vtk files to test (two smalls,
and a big one, the one I need to load and visualize : volume.vtk) :
http://www34.zippyshare.com/v/60134475/file.html
I'm using VTK 6.1 on Windows 7 64 bits with Visual Studio 2010.

2014-09-25 14:34 GMT+02:00 Aashish Chaudhary <aashish.chaudhary at kitware.com>
:

> Hi Robin,
>
> If you can reproduce this behavior with a small example code and post it
> somewhere, then can probably guide you better. But it seems that you are
> running into some sort of loop may be? What OS and VTK version is this?
>
> Thanks
>
>
> On Thu, Sep 25, 2014 at 5:20 AM, Robin Picou <robin.picou at audiogaming.net>
> wrote:
>
>> Ok, I've just rebuilt VTK and the examples in 64 bits. No more crash, but
>> the process takes 1.8 gb in RAM then freeze. I don't get why a 35mo file
>> (the smaller I have) will take 1.8 gb after reading, especially while
>> Paraview only needs something like 150 mb : / .
>>
>> 2014-09-24 20:27 GMT+02:00 Robert Maynard <robert.maynard at kitware.com>:
>>
>>> Have you tried compiling VTK as 64bit? This looks like you have ran
>>> out of process memory for a 32bit program.
>>>
>>> On Wed, Sep 24, 2014 at 12:25 PM, Robin Picou
>>> <robin.picou at audiogaming.net> wrote:
>>> > Hi there !
>>> >
>>> > I'm new to the VTK world, and I'm a bit lost at the moment.
>>> > I need to get a volumetric rendering of .vtk files (structured
>>> points), like
>>> > in Paraview ( see example here : http://imgur.com/qAKvynv ).
>>> >
>>> > The HAVSVVolumeMapper example seems to do something very similar, but
>>> I'm
>>> > unable to load my files :
>>> >
>>> > ERROR: In c:\vtk\vtk-6.1.0\common\core\vtkDataArrayTemplate.txx, line
>>> 314
>>> > vtkIdTypeArray (029CCDC0): Unable to allocate 145475925 elements of
>>> size 4
>>> > bytes.
>>> >
>>> > ERROR: In c:\vtk\vtk-6.1.0\common\core\vtkDataArrayTemplate.txx, line
>>> 314
>>> > vtkIdTypeArray (029CB710): Unable to allocate 72737961 elements of
>>> size 4
>>> > bytes.
>>> >
>>> > My files are quite big (50-60 mo, almost 20 million points), but in
>>> Paraview
>>> > it's loaded without any issues and the visualization is fast enough
>>> for my
>>> > needs.
>>> >
>>> >
>>> > The SmarlVolumeMapper example seems to be able to do this kind of
>>> rendering,
>>> > but I don't know how to use it with .vtk files, so if someone has some
>>> hints
>>> > on how to achieve this, I'll be deeply grateful !
>>> >
>>> >
>>> > Thanks in advance,
>>> > Robin
>>> >
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>>
>>
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>>
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>
>
> --
>
>
>
> *| Aashish Chaudhary | Technical Leader         | Kitware Inc.            *
> *| http://www.kitware.com/company/team/chaudhary.html
> <http://www.kitware.com/company/team/chaudhary.html>*
>
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