[Paraview] FW: paraview3.6.1/OSMesa rendering issue (JohnPatchett)

[Lucy Gagliardi]

Hi Tobias, 

I've also encountered the same problem with 3.5 although with this
version I received a segmentation fault from my scripts if I tried to
output a picture or movie (avi using ffmpeg). This was the reason I
originally switched to 3.6.1 - to see if the situation improved. I've
had no problems with either version running the same scripts without the
--use-offscreen-rendering flag so I believe that the scripting
environment is okay using pvpython/pvbatch. 

I'm in the process of trying the latest version of OSMesa (7.5) but am
currently having issues getting it to compile on my system. Not sure if
this difficulty may be related to my problems.


Regards,

Lucy

  

-----Original Message-----
From: paraview-bounces at paraview.org
[mailto:paraview-bounces at paraview.org] On Behalf Of Tobias Froebel
Sent: 14 August 2009 14:28
To: paraview at paraview.org
Subject: Re: [Paraview] FW: paraview3.6.1/OSMesa rendering issue
(JohnPatchett)

Hello Lucy,

just for your information. I'm encountering similar problems when using
paraview3.5 version compiled with OSMesa-support in pvpython mode.
Executing pvpython scripts fails if I try to save the pipeline result to
a .png od .jpeg file.

That's why I compiled a non-OSMesa version of paraview3.5 which I use in
parallel pvpython mode. I'm not sure what caused this behaviour of the
paraview version compiled with OSMesa support. Maybe the problem is
caused by a from environment setting running in script mode. If I use
the mentioned OSMesa paraview version in parallel GUI mode (client +
server) everything runs fine, even saving screen-shots to .png or .jpeg
file.

Maybe somebody knows a solution.

Regards Tobias

-- 
Dipl.-Ing. Tobias Froebel / CFD

Lehrstuhl fuer Flugantriebe / Fakultaet Maschinenwesen
TECHNISCHE UNIVERSITAET MUENCHEN
Boltzmannstrasse 15/Geb. 6
85747 Garching / Germany
Tel +49.89.289.16178
Fax +49.89.289.16166
froebel at lfa.mw.tum.de


 
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 13 Aug 2009 09:17:20 -0600
> From: John Patchett <patchett at lanl.gov>
> Subject: Re: [Paraview] FW: paraview3.6.1/OSMesa rendering issue
> To: "Lucy Gagliardi" <lgagliardi at BrawnGP.com>
> Cc: paraview at paraview.org
> Message-ID: <8802F7C3-2390-4311-B511-123DB1F400D1 at lanl.gov>
> Content-Type: text/plain; charset="windows-1252"; Format="flowed";
> 	DelSp="yes"
>
> Hi Lucy,
>    I'm pretty certain that we are doing what you want to do.  We are  
> building  OSMesa 7.5 from source as we have had various problems with

> system supplied mesa versions...
> --John.
>
>
> On Aug 13, 2009, at 1:43 AM, Lucy Gagliardi wrote:
>
>   
>> Hi,
>>
>> I?ve recently installed Paraview3.6.1 with OSMesa 7.4.4 on a linux  
>> based workstation (64bit). However, when running python scripts to  
>> set up and output jpg (or png) files using pvbatch with the --use- 
>> offscreen-rendering flag, the scripts run perfectly with no error,  
>> however the output picture is garbled. I?ve tried a fresh install of

>> both Paraview and OSMesa to double check my configuration and the  
>> compilation runs through fine with no errors. I?m trying to use the  
>> OSMesa libraries installed in a shared location across a network  
>> instead of on my local machine ? could this be the source of the  
>> problem? The python scripts only use Paraview as serial (i.e no  
>> parallel server) and output the pictures fine if the --use-offscreen-

>> rendering flag is not used (and the OpenGL visualisation window  
>> opens).
>>
>> Any help with this would be great as I?m pretty stumped.
>>
>> Cheers,
>>
>> Lucy
>>
>>
>> Lucy Gagliardi
>> CFD Engineer
>>
>> <image001.gif>
>>
>>
>> T + 44 (0)1280 846880
>> www.BrawnGP.com
>>
>> Brawn GP Limited. Registered in England No. 787446.
>>
>> Registered Office at Brawn GP Formula One Team, Brackley, Northants  
>> NN13 7BD.
>>
>>     
>
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