Robert/OSG, What is the plan for OSG to grant us the ability to insert custom graphics operations in a controlled order? What I mean is, what if we want to process our own application-level callbacks immediately after makeCurrent() and immediately before swapBuffers() using osgViewer::CompositeViewer?
There are too many things that we can't do using osgViewer::CompositeViewer and Camera/Cull callbacks. osgViewer::CompositeViewer doesn't permit us to do image->readPixels in order to do a screen capture. I've read all your advice on the topic in this forum. It just doesn't work. We have to roll our own render loop to the point that I never even call renderTraversals(). I made my own method that substitutes that method. Of course, I don't have access to the barriers, so my viewer must be single threaded. John Argentieri
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