[vtk-developers] VTKOpenGLExtensionManager in VTK 7.0?

[Ken Martin]

There is no direct replacement. You could try calling
renWin.ReportCapabilities() and extract the pieces you need form it maybe.

Thanks
Ken

On Tue, Feb 9, 2016 at 7:23 AM, Deepak Surti <dmsurti at gmail.com> wrote:

> Hi,
>
> vtkOpenGLExtensionManager is missing in VTK 7.0 with the default
> VTK_RENDERING_BACKEND OpenGL2.
>
> With the old OpenGL Backend up to VTK 6.3, I did something like this to
> get hold of the GL Driver, Renderer version etc.
>
> ```
>     ren = vtk.vtkRenderer()
>     renWin = vtk.vtkRenderWindow()
>     renWin.AddRenderer(ren)
>
>     # Now check the OpenGL metadata using the extension manager
>     em = vtk.vtkOpenGLExtensionManager()
>     em.SetRenderWindow(renWin)
>     renWin.Render()
>     em.Update()
>
>     vtk_ver = vtk.vtkVersion().GetVTKVersion()
>     gl_driver = em.GetDriverGLVersion()
>     gl_renderer = em.GetDriverGLRenderer()
> ```
>
> What is the replacement for vtkOpenGLExtensionManager or with OpenGL2
> backend, how do I get the above information?
>
> Thanks,
> Deepak
>
>
>
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Ken Martin PhD
Chairman & CFO
Kitware Inc.
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