[Paraview] Errors with GPU-based volume rendering

[Paul McIntosh]

All,

To help me in debugging - is this only seen with VirtualGL or do people see
this in other rendering cases?

Cheers,

Paul

-----Original Message-----
From: Paul Melis [mailto:paul.melis at sara.nl] 
Sent: Thursday, 1 December 2011 4:29 PM
To: Paul McIntosh
Cc: 'David E DeMarle'; paraview at paraview.org
Subject: Re: [Paraview] Errors with GPU-based volume rendering

Hi Paul,

That workaround indeed does the trick for me as well...

Thanks!
Paul

On 12/01/11 00:15, Paul McIntosh wrote:
> Paul,
>
> I see this issue and have yet to try and debug what is going on. 
> However I have a workaround -  try saving state even though you see a 
> "pink blob" then reload the state. I find it works every time - 
> obviously I wish this not to happen at all so I'll provide a test case as
soon as I can.
>
> Below is some of the error messages I see just FYI
>
> Cheers,
>
> Paul
>
> after uniforms for textures ERROR (x501) Invalid value framebuffer has 
> an attachment error framebuffer has an attachment error SetupRender 
> ERROR (x506) invalid framebuffer operation ext framebuffer has an 
> attachment error framebuffer has an attachment error after uniforms 
> for textures ERROR (x501) Invalid value framebuffer has an attachment 
> error framebuffer has an attachment error SetupRender ERROR (x506) 
> invalid framebuffer operation ext framebuffer has an attachment error 
> framebuffer has an attachment error after uniforms for textures ERROR 
> (x501) Invalid value framebuffer has an attachment error framebuffer 
> has an attachment error SetupRender ERROR (x506) invalid framebuffer 
> operation ext framebuffer has an attachment error framebuffer has an 
> attachment error after uniforms for textures ERROR (x501) Invalid 
> value framebuffer has an attachment error framebuffer has an 
> attachment error SetupRender ERROR (x506) invalid framebuffer 
> operation ext framebuffer has an attachment error framebuffer has an 
> attachment error after uniforms for textures ERROR (x501) Invalid 
> value framebuffer has an attachment error framebuffer has an 
> attachment error
>
>
>
> -----Original Message-----
> From: paraview-bounces at paraview.org 
> [mailto:paraview-bounces at paraview.org]
> On Behalf Of David E DeMarle
> Sent: Thursday, 1 December 2011 1:47 AM
> To: paul.melis at sara.nl
> Cc: paraview at paraview.org
> Subject: Re: [Paraview] Errors with GPU-based volume rendering
>
> Sounds like a bug then if 3.8 works and>3.8 doesn't on the same setup. 
> It suspect it is in the new rendering architecture that was introduced 
> with 3.10.
>
> Please file a bug report with enough information to reproduce the 
> problem so that we can keep an eye on it.
>
> David E DeMarle
> Kitware, Inc.
> R&D Engineer
> 21 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-881-4909
>
>
>
> On Thu, Nov 24, 2011 at 3:19 AM, Paul Melis<paul.melis at sara.nl>  wrote:
>> On 11/22/2011 10:08 AM, Paul Melis wrote:
>>> Is this a problem with my local setup? If so, are there tests I can 
>>> do to figure out what's wrong?
>> I did some more testing and it is not a problem with my local setup, 
>> as I can get correct GPU-based volume rendering with PV 3.12.0 in the 
>> following two situations:
>>
>> * Running PV standalone on a render node under VirtualGL, accessed 
>> through VNC
>> * Running 1 pvserver on a render node with forced remote rendering 
>> (remote rendering threshold enabled and set to 0)
>>
>> However, when I try to use 2 or 4 pvservers (one per render node) I 
>> get the purple-square-screwed-up rendering, both with 3.10.1 and 3.12.0.
>>
>> Surprisingly, with 3.8.1 when using 2 or 4 pvservers the GPU-based 
>> rendering works...
>>
>> Regards,
>> Paul
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