Apologies if this is a bit vague, but there may be a simple answer. I am running a class which uses a CompositeViewer and a setup with 2 monitors. If I run my scene with one window on one screen (either 0 or 1, it doesn't matter which) it works fine. However, if I add a second view (so there is a window on screen 0 and a window on screen 1) I get an error: Warning: detected OpenGL error 'invalid enumerant' after RenderBin::draw(,) If I then call camera->getGraphicsContext()->getState()->checkForGLErrors(osg::State::ONCE_PER_ATTRIBUTE) for both cameras this produces the errors Warning: detected OpenGL error 'invalid enumerant' after applying MyTex 0x8582ef1 repeated a few times MyTex is a class which inherits from Texture2D. So the question is, why does it work on any one screen but not on two? Thanks, Alan.
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