what version of OpenGL is in mesa?

[Bill Cole]

On 29 Jan 2018, at 10:08, Langer, Stephen A. (Fed) wrote:

> Thanks for the information.  I asked because I was getting conflicting 
> information.  I did attempt to find an answer with Google.  I'm sorry 
> if I offended you.

Not at all. I was just surprised how little knowledge of the subject 
matter I needed to find the definitive answer. Sorry for coming across 
so grumpy, it's a known bug...

FWIW, if you need to dive deeper into that compatibility tangle, this 
site may help: https://mesamatrix.net



>
> -- Steve
>
> On 1/26/18, 9:19 PM, "macports-users on behalf of Bill Cole" 
> <macports-users-bounces at lists.macports.org on behalf of 
> macportsusers-20171215 at billmail.scconsult.com> wrote:
>
>     On 26 Jan 2018, at 14:54 (-0500), Langer, Stephen A. (Fed) wrote:
>
>     > I should have included the exact error message.  This is what 
> vtk says
>     > when it encounters OpenGL from macports mesa:
>     >
>     > Warning: In … Rendering/OpenGL2/vtkOpenGLRenderWindow.cxx, 
> line 800
>     > vtkXOpenGLRenderWindow (0x7fca59821e00): VTK is designed to work 
> with
>     > OpenGL version 3.2 but it appears it has been given a context 
> that
>     > does not support 3.2. VTK will run in a compatibility mode 
> designed to
>     > work with earlier versions of OpenGL but some features may not 
> work.
>
>     The MacPorts version of Mesa is 17.1.6. It took roughly 30 second 
> for me
>     to find this page: 
> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.mesa3d.org%2Frelnotes%2F17.1.6.html&data=02%7C01%7Cstephen.langer%40nist.gov%7Cb089a5bbbf384a5ca6bb08d5652c5d01%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636526163576545449&sdata=ai86TDzzmiXRIduisritq%2BthkgCMRHtjX5JATnrTv3A%3D&reserved=0
>
>     Read the second paragraph in the first section.
>
>     I am not familiar with this particular software combination (or 
> the
>     version widgetry of OpenGL) but based on that paragraph and the 
> error
>     message, it seems to me that this is either a vtk bug or a 
> limitation of
>     the underlying driver.
>
>     --
>     Bill Cole
>     bill at scconsult.com or billcole at apache.org
>     (AKA @grumpybozo and many *@billmail.scconsult.com addresses)
>     Currently Seeking Steady Work: 
> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flinkedin.com%2Fin%2Fbillcole&data=02%7C01%7Cstephen.langer%40nist.gov%7Cb089a5bbbf384a5ca6bb08d5652c5d01%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636526163576545449&sdata=neSEji01BvlKAvrcHzQnDti7BvQx0iISA8M9IYtC7g4%3D&reserved=0


-- 
Bill Cole
bill at scconsult.com or billcole at apache.org
(AKA @grumpybozo and many *@billmail.scconsult.com addresses)
Currently Seeking Steady Work: https://linkedin.com/in/billcole