[vtkusers] OpenGL errors upon move from 6.3.0 to 7.0.0

[Ken Martin]

Hmm something is really odd there.  16600 points/normals is trivially
small. Even if you had 100 actors each with 16600 points that would be
small. There are a couple ways to debug something like this. One is to go
old school and sprinkle

  vtkOpenGLCheckErrorMacro("failed after something");

throughout the code to see where the issue is. Another option on windows is
to use

https://github.com/dtrebilco/glintercept

which produces a log showing the specific call that caused the problem and
when run in the debugger it will break on opengl errors. There are other
tools with similar capabilities available as well.

If you can boil it down to something smaller I could try it out, my dev
systems are all Qt4 though...

Ken






On Tue, Feb 23, 2016 at 11:37 AM, Richard Frank <rickfrank at me.com> wrote:

> There are 16600 points and 16600 normals in each model, I'm using Qt 5.5
> and there are four of these models - 1 in each renderview -  (Sagital,
> Axial, Coronal, etc). Each model is composed of surfaces created with
> triangle strips.
>
> Each model contains a number of actors for each surface, (variable,
> depends on anatomy) put together into an assembly.
>
> It's a medical application. Works fine in VTK 6.3.0
>
> NVidia quadro K5200
> Graphics Card should be beefy enough.
>
> Rick
>
>
> On Feb 22, 2016, at 09:44 PM, Ken Martin <ken.martin at kitware.com> wrote:
>
> Out of memory is an unusual one. Maybe the mesh is too big to load all at
> once in the new backend. How big is the mesh you are trying to render
> (number of points, number of triangles) and does it use cell colors or cell
> normals?  That would help me get a feel if it is really just exceeding what
> the card can handle.
>
> Thanks
> Ken
>
>
> On Mon, Feb 22, 2016 at 6:50 PM, Richard Frank <rickfrank at me.com> wrote:
>
>> Hi,
>>
>> I get the following errors ( and my fairly complex polygon mesh fails to
>> render ) when using VTK 7.0.
>> ERROR: In
>>
>> \vtk770\Rendering\OpenGL2\vtkOpenGLPolyDataMapper.cxx, line 1440
>> vtkOpenGLPolyDataMapper (0000016618EFD490): failed after UpdateShader 1
>> OpenGL errors detected
>> 0 : (1282) Invalid operation
>>
>>
>>
>> ERROR: In \vtk770\Rendering\OpenGL2\vtkOpenGLActor.cxx, line 91
>> vtkOpenGLActor (0000016619E228B0): failed after Render 1 OpenGL errors
>> detected
>> 0 : (1285) Out of memory
>>
>>
>> This is code is " works " fine in 6.3.0.
>>
>> I'm using an NVidia quadro K5200 with 8G.
>>
>> Any tips on how to debug this?
>> Thanks
>>
>> Rick
>>
>>
>> Sent from my iPad
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>
>
> --
> Ken Martin PhD
> Chairman & CFO
> Kitware Inc.
> 28 Corporate Drive
> Clifton Park NY 12065
> 518 371 3971
>
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-- 
Ken Martin PhD
Chairman & CFO
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065
518 371 3971

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
not the intended recipient, any disclosure, copying, distribution or any
action taken in reliance on it is prohibited and may be unlawful. If you
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