Re: [Flightgear-devel] Releases

[Julian S. <ju...@op...>]

On Fri, 27 Mar 2020 19:35:11 +0000
Julian Smith <ju...@op...> wrote:

> On Fri, 27 Mar 2020 20:02:37 +0100
> Fernando García Liñán <fer...@gm...> wrote:
> 
> > On Fri, Mar 27, 2020 at 6:15 PM Julian Smith <ju...@op...> wrote:  
> > > Thanks for this, i pulled and it all builds fine now.
> > >
> > > It seems to be stable with default settings, but i'm seeing what i can
> > > only describe as 'shimmering' when viewing aircraft (including
> > > multiplayer aircraft) from a large distance e.g. in Tower View.
> > > Helicopter view is fine.
> > >
> > > Sometimes it seems that with a stationary aircraft the shimmering is
> > > more pronounced for about a second after a control surface is moved.
> > >
> > > The shimmering didn't appear with a non-compositor build.
> > >
> > > I'm running on Linunx on a Lenovo x230 which has built-in graphics, i
> > > think Intel HD Graphics 4000.
> > >
> > > Thanks,
> > >
> > > - Jules    
> > 
> > The default pipeline (low-spec) should indeed suffer from z-fighting.
> > The ALS one should not.  
> 
> Thanks for this.
> 
> I tried with --compositor=Compositor/als and i'm seeing a very
> odd-looking affect where the aircraft appears behind all scenery, even
> distant mountains. A sort-of Godzilla affect!

Ah sorry, MESA_GL_VERSION_OVERRIDE="3.1COMPAT" fixes this, as suggested
on http://wiki.flightgear.org/Compositor.

- Jules


> 
> I'm also seeing lots of these diagnostics:
> 
>   443.38 /home/jules/flightgear/download_and_compile16c/install/simgear/include/simgear/debug/OsgIoCapture.hxx:37: [WARN]:OSG        Warning: detected OpenGL error 'invalid enumerant' after applying attribute TextureBuffer 0x555557402700
> 
> Incidentally http://wiki.flightgear.org/Compositor suggests
> '--compositor=Compositor/ALS/als', but this fails and the path isn't in
> current fgdata - should it be changed to say
> '--compositor=Compositor/als'?
> 
> Thanks,
> 
> - Jules
> 



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