- - GeForce 680M with 4GB video RAM.
- - 3D Vision IR emitter built in.
- - Windows 8 64-bit.
- - NVIDIA GeForce 314.07 drivers, 18 Feb 2013.
Note: My display had to be set to 120Hz before starting the program in order for stereo to work.
To investigate further, I created four test versions of the IperS program:
- - Mono, windowed: 3D Vision Automatic does not work.
- - Mono, full-screen: Ditto.
- - Stereo, windowed: 3D Vision does not work.
- - Stereo, full-screen: 3D Vision works!
I then tested previous driver versions: neither 310.70 17 Dec 2013 nor 310.90 5 Jan 2013 worked in stereo. So it looks like this stereo support was introduced in 314.07 18 Feb 2013.
There's no mention of quad-buffered OpenGL stereo support having been added in the 314.07 GeForce driver's release notes, http://us.download.nvidia.com/Windows/3 ... -notes.pdf. However, there is a cryptic line in the 314.07 "Quadro and NVS Notebook Drivers" release notes, http://us.download.nvidia.com/Windows/Q ... -notes.pdf:
"Added Quad-buffered OpenGL Stereo support for Windows 8."
This is the only clue I could find. Hopefully this new stereo support isn't an unintentional release by NVIDIA; hopefully they won't yank it in the next driver version! (I also tried the beta 314.14 and 314.21 drivers and my test program still works in stereo for both, though still only in full-screen.)
So, is this stereo support universal for GeForce cards or does it depend on system configuration? For example:
- - Graphics chip (my 680M is a recent chip)?
- - Windows version (the cryptic line mentions Windows 8)?
- - Notebook versus desktop (the title of the release notes with the cryptic line has "notebook")?
- - Something else?