[vtk-developers] Windows Intel HD 2000 not working with new rendering backend

[Marcus D. Hanwell]

On Wed, Feb 10, 2016 at 6:05 PM, Marcus D. Hanwell
<marcus.hanwell at kitware.com> wrote:
> Hi,
>
> I have a Windows 7 64 bit machine, glewinfo offers the following summary:
>
> GLEW version 1.13.0
> Reporting capabilities of pixelformat 3
> Running on a Intel(R) HD Graphics 2000 from Intel
> OpenGL version 3.1.0 - Build 9.17.10.3347 is supported
>
> In a new Tomviz build I see the following failure:
>
> ERROR: In C:\bbd\e04ad53c\build\paraview\src\paraview\VTK\Rendering\OpenGL2\vtkOpenGLRenderWindow.cxx,
> line 590
>
> vtkWin32OpenGLRenderWindow (00000000029E7990): GL version 2.1 with the
> gpu_shader4 extension is not supported by your graphics driver but is
> required for the new OpenGL rendering backend. Please update your
> OpenGL driver. If you are using Mesa please make sure you have version
> 10.6.5 or later and make sure your driver in Mesa supports OpenGL 3.2.
>
> Is our effective minimum version for OpenGL 3.2 now? It looks like I
> have the latest drivers, and so I am guessing I would need to switch
> back to the old backend or buy a graphics card for the machine. The
> 3.2 section looks like this,
>
GL_VERSION_3_2:                                                MISSING
---------------
  glFramebufferTexture:                                        OK
  glGetBufferParameteri64v:                                    MISSING
  glGetInteger64i_v:                                           MISSING
>
> From an application development perspective, is there API that I could
> use to present a friendlier message to our users? Is 3.2 effectively
> the minimum, it looks like this card has everything up to 3.1 and then
> lacks several 3,2 features.

Tomviz ultimately ends up segfaulting, I can add Qt code to detect 3.2
and fail if not available if that is effectively our minimum. It would
be great to be able to support these cards, but if not possible I
would like to offer a simpler error message without crashing.

Thanks,

Marcus