Correct. It is the reflection that has been there all along, not the shadow. I stand corrected 
So, in your description, being like a glass-man would be much more efficient from an invisibility point of view than being invisible? Sounds weird, but feasible.
MuCo: "remove the ability of a human being to be opaque to sight". Or, alternatively "add total transparency to a human body" No shadow anymore.
Cheers,
Xavi