Ever since my demo level for 229:Thing_SetGoal and Patrol_points in 2006, I had wanted to be able to make a monitor which showed another sector in the map in it's screen. Then, when KDiZD was published, it was possible to make monitors set into the wall. Not until 3D constructs could be made was it possible to have freestanding monitors. Something like this:
And what it looks like:
Example pwad: 3D-05.wad
Happy fragging.
Kappes Buur, Sept. 09, 2017