[osg-users] glsl version 130 not supported (and related problems)

[Bruno Oliveira]

Hello,

I was now trying to solve this and searched for OSX VAO related posts, but
could not find relevant instructions on how to compile for OpenGL Core
Profile under OSX. Could you perhaps give some link to those discussions?

2016-10-26 9:00 GMT+01:00 Robert Osfield <robert.osfield at gmail.com>:

> Hi Bruno,
>
> On 25 October 2016 at 23:53, Bruno Oliveira
> <bruno.manata.oliveira at gmail.com> wrote:
> > I'm sorry but that did not work for me. I indeed created a new clone of
> the
> > OSG's master, recompiled OSG along with my app and I get a huge amount of
> > 'invalid operation' errors when trying to draw a simple scene that would
> > otherwise work...
>
> When I shortly after I first announced the vertex_array_object branch
> I asked for feedback on OSX GL3 core profile support and got feedback
> that the new VAO support for functioning and enabling GL3 usage under
> OSX.
>
> I don't have a OSX system so can't personally test, the best I can do
> provide general directions for others who have OSX to do testing and
> roll in any fixes that are required.
>
> For yourself I would recommend having a look through the threads on
> VAO over the last two months looking for discussions on the OSX, this
> might help you on your way.
>
> You'll also need patience, Apple over the years have made various
> changes that break builds and runtimes, or limit functionality to a
> narrow set of usage cases. Over the years I have worked under OSX at
> different points, but these days I'm more than happy to stay away from
> OSX, Apple have moved the goal posts so many times that it's a painful
> platform to support.  I say this prepare you for the effort required
> to port and then maintain your application on OSX, giving you the
> required time and resources for OSX  support is something that your
> management will need to be aware of and supportive of.
>
> On the OSG side I can't wave a magic wand and fix all the problems,
> one of the main motivations for adding VAO support to the OSG was
> fixing things under OSX.  I spent 6 weeks work unpaid on this to make
> it possible but as I don't have OSX I can't do the final testing.
> Others in the OSG that have OSX will need to help refine things if
> they need it and support each other.
>
> Robert.
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