Yup, you got it, there's a myriad of stuff between the object and the camera, but mostly transparent... ish. i.e. terrain, and sphere, and rock mists.

Measure your mind's height
by the shade it casts.
Robert Browning (Paracelsus)

Fran's Freestuff

http://franontheedge.blogspot.com/

http://www.FranOnTheEdge.com