I have a height field I'm using as a mountain from the outside, and a cave
from the inside.

What I want to do is punch a hole in the heightfield so I can stand inside
and look out, or vice-versa.

I tried
#declare mountain = difference
{
   object <the height field>
   object <a box that spans the skin of the height field>
}

but I don't seem to be able to see beyond the skin of the box, which I can
see projecting into the cave.

What am I doing wrong??

Post a reply to this message