Okay, so maybe the title is a bit misleading, but I do not know how to give this a reasonable name.
As you can see in the picture I provided, I have a SceneCapture2D using a PP Material to get the SceneDepht which works fine. But if i then get the Data from the SceneDepht it is from the perspective of the camera (which is okay) but is there a way to get the rotated cone as a reverted cone in scene depht without creating a second render target and so on. Hope this clears it. (if you still do not understand what I am talking about, just ask me)
http://puu.sh/qg4AO/61db7a47d1.jpg
this is the left cone (in SceneDepht)
http://puu.sh/qg4Bk/6f78f456bb.jpg
this is the right cone (in SceneDepht)