FBO's don't support double buffering either. FBO's are frame buffer
that are ever directly connected to display outputs.
I didn't mean literally, rather that two color buffers would get
attached and used as left and right back buffers. That's quite
feasible, as far as I can tell.
If you want to do two stereo outputs using FBO use two osg::Camera RTT
cameras and then use the different results in your left/right eye
subgraphs. For an illustration of how to manage left/right eye
subgraphs see the osgstereimage example.
Right, so essentially I'm back to roll my own stereo? That's fine. I
suppose the left camera & fbo and right camera and fbo will get node
masked when it's time to recombine them in a quad buffered frame
buffer. That way the final stero pass is osg standard, not that it
makes much difference if all the content is already left/right split.
Bruce
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