Ok, this is what I want. I want a HDRI reflection on a object without seeing the HDRI image on the back, is that possible?
I know how to set up a HDR image as a worldtexture and rendering with yafray etc. and even the rendering is perfect but I see the HDRI image on the back.
How can I make the same image (with the HDRI reflection on the image) without seeing the HDRI image on the back?
So far the only real suggestion is to edit the background out in post pro – Using the RGBA settings as Jedi dawn suggested (don’t forget to save in targa format)