Ultimate Doom Builder Tutorial: Part 8: Keyed Doors and Level Exits

In this series, I create a new Doom 2 map from scratch, in order to teach how to use Ultimate Doom Builder. In this video, we create an exit room, our first key door, and look at several miscellaneous level-design tricks.

0:00 Intro Clip
0:09 Introduction
0:42 Rounded corners to reduce collision jankiness
1:55 Other minor level changes
2:24 Expanding to the level exit
4:15 Creating the exit door
6:07 Light trim near the exit door
7:16 Trick: Going out-of-bounds to access floors/ceilings
8:13 Design Choice: Player learns the exit location early in the level
8:46 Creating a keyed door
10:35 Design Rule: Mark your exits!
10:59 Creating a hanging exit sign
12:00 Building the exit room
13:30 Design Rule: Change floor textures when floor heights change
14:21 Starting the Exit Switch
15:47 Trick: Using a hidden sector to "split" textures
17:25 Making the Exit Switch work
17:46 Lighting: Using the "glow" sector effect (E8)