Opaque Holograms?

Garry's Mod general
#1

Ok, I’ve made an expression code which spawns a hologram around myself and its parented to me etc etc.
I was wondering, is there any way of making the holograms opaque from the inside? Because my experience of wire holograms is you go inside them and they’re see-through :frowning:

Any help?

#2

Make one side negative:
holoScale(1,vec(-3,3,3))

#3

Oh ok, thanks very much!