[osg-users] GL profiles issues on Windows

[Riccardo Corsi]

Hi all,

I've rebuilt osg as suggested by Robert and still getting no GL errors but
nothing shows up.
To sum it up, running a test app which only uses libA (which addresses only
GL3 functions and shaders version 150)
under windows:
- if I link my code to OSG built with  GLCORE profile everything works
- if I link the same code to OSG build with defaults, nothing shows up

As further check, I tried the same with osgsimplegl3 example which works in
both OSG builds.
Any idea on what could be the culprit of my code not working in the same
way?

@Werner you're correct, I'd like to use both libs in the same app on
Windows,
I think this should be possible with Compatibility profile.

Thank you


On Wed, Sep 5, 2018 at 12:17 PM Werner Modenbach <Werner.Modenbach at texion.eu>
wrote:

> Hi Robert,
>
> I thin k Riccardo wants to use both libs (libA glcore, linB non glcore)
> in the same app on Windows.
> In my understanding this is not possible at all.
>
> - Werner -
>
> Am 05.09.2018 um 11:36 schrieb Robert Osfield:
> > Hi Riccardo,
> >
> > On Wed, 5 Sep 2018 at 10:23, Riccardo Corsi <riccardo.corsi at kairos3d.it>
> wrote:
> >> Now what I'd like to do (on Win only) is to use libA and libB together.
> >> To do so I expected it was enough to add the OSG_GL3_AVAILABLE flag to
> build OSG and to request a Compatibility GL context.
> >> What happens instead is that I don't see anything of what libA is
> supposed to render, even though I don't get any GL error on the console.
> > I you are just building the OSG with defaults, so will provide a
> > compatibility profile. then the OSG at runtime will check for all the
> > GL3/GL4 features and allow you to use this, you don't need to
> > explicitly enable them via OSG_GL3_AVAILABLE.
> >
> > For compatibility with OSX then you'll need to use the CMake option of
> > OPENGL_PROFILE=GLCORE.
> >
> > If you create an application that works with GLCORE then this same
> > application will build and run just fine on the OSG built with
> > defaults.
> >
> > Robert.
> > _______________________________________________
> > osg-users mailing list
> > osg-users at lists.openscenegraph.org
> >
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>
>
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