[osg-users] Bug: hang when closing all windows except the last opened (Mac OS X / Win 32 / SingleThreaded)

[Stephan Maximilian Huber]

Stephan Huber schrieb:
> If I close the left window first, the rendering stops in the right 
> window. If I close the right window first, the rendering continues in 
> the left window. It seems that the context of the right window got 
> invalidated somehow, because if I resize the right window I get 
> pixel-garbage.
After some debugging the cause for this hang is:

If you close all windows except the last opened, osgViewer::Viewer does 
not make the last context current again, because it thinks that this 
context is still the current one (in osgViewer::makeCurrent) To fix this 
bug, osgViewer has to reset _currentContext after a window got closed.

I did a quick fix in osgViewer.cpp, but please review my change, there 
is perhaps a better fix to this bug.

Thanks,
Stephan


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