No idea what you're asking. Stereo 3d games are done by creating a 2nd camera slightly offset from the first. There are corresponding buffers with the left and right cameras. Just like games now use a front and back buffer, these also use the new features of left and right buffers, for a total of 4. In addition to that software logic, there is also a special polarized monitor and glasses that separate which eye can see which buffers.
That's probably not the best explanation but it's the gist of the current technology that I know.