Is there anything in particular you need to do to allow for 3D supported games to run in the HMD? I have the beta firmware... I loaded up Sniper Elite 4 from my headset and the 3D option was greyed out in the menu.
The first time I fired up the 3D mode in SSU, my HDTV displayed the game with double images, so I know the effect was turned on. I put on my VR headset for ten seconds and the image was clear, even though the 3D effect seemed very underwhelming like half the 3D Blurays I've recently watched with it.
I checked SSU again right now with the VR gear and I was wrong - the visuals are only in clear, single-image 2D despite my HDTV showing double image 3D. My set is 3D capable, so I put on my glasses for it and the explosions are properly popping out at me while the play field is showing a ton of depth.
I should have noticed this initially before I posted above - sorry about that (posts edited). It is weird though that the feed to the VR headset is a clean 2D image when 3D is activated in the game. You would figure it would send the same feed as what's sent to the HDTV.