On 22 September 2016 at 14:59, Christoph Weiss <we...@wsoptics.de> wrote:
> As for the reasons, I'm uncertain.  Our application only works in
> SingleThreaded mode, otherwise it produces "Error: OpenGL version test
> failed, requires valid graphics context."
>
> I'll let you know when I find what causes this.

Sounds like a rendering traversal has been kicked off from a thread
that doesn't yet have a graphics context current.

Discussion about these types of issues are best done on the osg-users
mailing list/forum.

Robert.
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