Article on polyobjects: https://zdoom.org/wiki/PolyObjects
Polyobject-related ACS scripts: https://zdoom.org/wiki/Category:Polyo...
This video demonstrates method to create fully 3d doors and other objects that have finite height and can be operated.
The editor used is called Ultimate Doom Builder. https://forum.zdoom.org/viewtopic.php...
The Source Port engine used is called GZDoom: https://zdoom.org
0:00 Intro
1:58 Demonstration
4:14 Basic polyobject setup guide
9:17 Advanced polyobject setup guide
17:35 Recap/summary