Stereoscopic in front of screen (Asymmetric frustum projection) in Unity (Help !!!)

Hi everyone,

I know that using NVidia 3D Vision, we can see a game in 3D mode with a pair of active glasses.
Well, the game I created in unity, is shown, like behind the screen.

I want to know if there is a way that can create a content (an object) that can be shown in front of the screen (between the screen and the user).

Are there some settings on NVidia 3D Vision that should be actived?
Or we need to change the camera matrix or other parameters when creating the content ? And how?

I searched a bit on the forum and found something posted on 2012 :
https://forum.unity.com/threads/stereoskopix-fov2go-v2-stereo-3d-vr-for-free-released.140508/
Which seems quite old and not support the latest version of unity.

There are also some other posts:
https://forum.unity.com/threads/stereo-anagylph-rendering-help.11775/
https://forum.unity.com/threads/3d-stereoscopy-anaglyph-izer-unity-3-and-unity-2-6.60961/
https://forum.unity.com/threads/stereo-3d-in-unity-3d.63874/#post-416458

They explained how to use two cameras to render the scene or some image effects on how to obtain red/blue images for each eye. However I could not find what I want.

So I came here hoping someone may share something so I can go deeper.

 

I found something on OpenGL:
https://www.packtpub.com/books/content/rendering-stereoscopic-3d-models-using-opengl

I looks like a new camera projection concept should be applied to realize it. But I don't know how to do that in Unity.