[Paraview] ParaView 5.0.0 with Catalyst: OpenGL2 backend in server, not in client

[Andy Bauer]

Hi Alexandre,

This is a known issue in PV 5.0 in that the server and client must use the
same back-end rendering version. I believe there's a fix on the way to
better inform what the issue is when a user encounters this.

thanks,
Andy

On Fri, Feb 12, 2016 at 12:23 PM, Alexandre Ancel <
alexandre.ancel at cemosis.fr> wrote:

> Hello,
>
> A word about the context: I am working on a library that uses Catalyst to
> do Live visualization with ParaView. In this library, I just create a proxy
> to a PVTrivialProducer and then set its output to send the data
> (vtkUnstructuredGrid) to ParaView. This part is working very well.
>
> I built the 5.0.0 version of ParaView on our data server with the OpenGL2
> backend enabled, but when I built the 5.0.0 version of ParaView on my
> client with OS X (I needed the developement headers), I noticed that I
> forgot to add the option to enable the new OpenGL backend:
> -DVTK_RENDERING_BACKEND=OpenGL2. So I ended up having version 1.4 for
> OpenGL in this version.
>
> When I tried to use our application with Catalyst, everything worked fine,
> until I wanted to visualize the data extract from the proxy in the ParaView
> interface.
> ParaView then crashed with the following error:
> "
> ERROR: In
> /tmp/ParaView-v5.0.0-source/ParaViewCore/ServerImplementation/Core/vtkSIProxy.cxx,
> line 310
> vtkSISourceProxy (0x4aefb50): Failed to create
> vtkPointGaussianRepresentation. Aborting for debugging purposes.
>
> Aborted
> "
>
> Looking at the proxy definition in
> ParaViewCore/ServerManager/SMApplication/Resources/, I see that there is a
> proxy for vtkPointGaussianRepresentation in proxies_opengl2.xml, but not in
> proxies_opengl1.xml.
>
> Am I getting an expected behavior here due to the option I forgot ?
>
>
> Note that I also have the standard pre-packaged version of ParaView (with
> the OpenGL2 backend and OpenGL v4.1) installed on OS X and I don't get the
> previous issue and everything is ok.
>
> In summary and with version 5.0.0 for everything:
> ParaView (No OpenGL2) -> pvserver (OpenGL2) : causes a crash
> ParaView (OpenGL2) -> pvserver (OpenGL2) : is OK
>
> What do you think about checking the version of the OpenGL backend when
> connecting to a pv*server and see if they match ?
> And possibly display a message similar to the one displayed, when ParaView
> connects to a different version of pvserver (e.g. when a client in 4.4.0 to
> a server in 5.0.0)
>
>
> Best regards,
> Alexandre Ancel
>
>
> --
> Alexandre Ancel
> Docteur, Ingénieur de recherche / Phd, Research Engineer
> Cemosis <http://www.cemosis.fr> - alexandre.ancel at cemosis.fr
> Tel: +33 (0)3 68 8*5 02 06*
> IRMA - 7, rue René Descartes
> 67 000 Strasbourg, France
>
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