Modifying the rendering fov

Hi guys,

For info: I am develloping with the DK2, using Visual Studio 2010, and DirectX11.

I am having some difficulties to modify the rendering FOV. I found nothing on Google, Reddit, or Oculus forum, sorry if I missed something.

So far I player with ovrHmd_ConfigureRendering(...), with a custom FovPort as input argument. But does not give me what I am looking for. On the first image you see the result of what I can do right now, on the second is what I would like to obtain.

ovrBool ovrHmd_ConfigRendering( ovrHmd hmddesc,
                                const ovrRenderAPIConfig* apiConfig,
                                usigned int distortionCaps,
                                const ovrFovPort eveFovIn[2]
                                ovrEyeRenderDesc eyeRenderDescOut[2] )

What I control:
http://imagizer.imageshack.us/v2/640x480q90/537/R1b6vp.jpg

What I would like to control:
http://imagizer.imageshack.us/v2/640x480q90/661/k4cLnp.jpg


Do you guys know how to control the FOV this way ?

Thanks for your help.