[Paraview] Errors with GPU-based volume rendering

[Paul McIntosh]

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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