[Paraview] Can Paraview use the GPU instead of the CPU?

[Mohamed Beshr]

Thank you Mathieu for your reply. Regarding point 2 I have few questions:
1. I see the volume rendering mode (which I can switch between smart and
CPU based) when I select a wavelet for instance. However, I can't see it
when I choose unstructured cell type as the source (and this applies to my
data set coming from CFD results). In that latter case, I get the select
mapper drop down menu which has the options of projected tetra/z
sweep/bunyk ray cast/resample to image. Is there a way to ensure volume
rendering is done using the GPUs in that case?
2. In the case described above, when I select resample to image, the color
of the model gets messed up (it becomes one color). Is there a way to get
it back to normal?
Thanks.

On Wed, Mar 28, 2018 at 10:41 PM, Mathieu Westphal <
mathieu.westphal at kitware.com> wrote:

> Hello Mohamed,
>
> Is there a way to use the GPU instead of the CPU for:
>> 1. Data rendering in general?
>>
> This is the case by default when you are using the paraview binaries, you
> can check by taking a look into Help->About->OpenGL Renderer
>
>
>> 2. Volume rendering? other than using the NVIDIA IndeX plugin?
>>
> This is also the case by default if your GPU suppports it. You can check
> the "Volume Rendering Mode" in the volume representation property.
> Smart is the default and will use your gpu if possible. You can set it to
> "GPU based" if you want to make sure.
>
>
>> 3. Loading and displaying the data (i.e. data crunching). For example, if
>> I am loading a transient CFD simulation result?
>>
> Loading the data using the GPU will not be possible, this is basically
> lots of IO with the disk and the creation of the geometry.
> If by displaying you mean rendering, see the first point.
>
>
>>
>> Also, is there a way to render-off screen through Paraview GUI? or this
>> needs to be done through code?
>>
> Yes there is, but it depends what you mean by off-screen.
> If you refer to CPU based rendering on an headlees server, please take a
> look here. [1]
> If not, please precise your needs.
>
> Best regards,
>
> Mathieu Westphal
>
>
> [1] : https://www.paraview.org/Wiki/ParaView/ParaView_And_Mesa_3D
>



-- 
Best Regards,
Mohamed Beshr
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