Ultimate Doom Builder / GZDDoom help, WAD tests fine in UDB but doesn't launch in GZdoom

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LonieHaag
Posts: 3
Joined: Wed Apr 23, 2025 3:11 am
Operating System Version (Optional): Windows 11
Graphics Processor: Intel (Legacy GZDoom)

Ultimate Doom Builder / GZDDoom help, WAD tests fine in UDB but doesn't launch in GZdoom

Post by LonieHaag »

So I'm working on my first WAD using GZDoom and UDB and I'm having trouble with launching the wad outside of UDB. I'm probably missing something but essentially my steps are as follows.
  • Open new map with game config GZDoom: Doom 2 UDMF
  • Add resources from doom2.wad
  • made a simple room and spawn point for testing and save
  • Drag new .wad file onto GZDOOM executable and select doom 2: hell on earth from launch window
Im able to open others tutorial wads and run them through GZDoom but trying with my own just loads up the first default level. I can also send my wad if needed. I know this isn't a mapping subreddit so i apologize if this post is not appropriate.

Thanks so much!
boris
Posts: 778
Joined: Tue Jul 15, 2003 3:37 pm

Re: Ultimate Doom Builder / GZDDoom help, WAD tests fine in UDB but doesn't launch in GZdoom

Post by boris »

Name your map MAP01.
User avatar
Kappes Buur
 
 
Posts: 4188
Joined: Thu Jul 17, 2003 12:19 am
Graphics Processor: nVidia (Legacy GZDoom)
Location: British Columbia, Canada
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Re: Ultimate Doom Builder / GZDDoom help, WAD tests fine in UDB but doesn't launch in GZdoom

Post by Kappes Buur »

Normaly one starts a new map by leaving the level name at the default MAP01.
Then GZDoom will use that name and displays the map as designed.

But what happens when the level name is something different, maybe TEST01.
Then, of course, GZDoom assumes the level name to be MAP01 and accordingly
plays the first level of DOOM2.
This can be corrected by adding a MAPINFO lump to the map, something like this:

Code: Select all

clearepisodes
episode "TEST01"
{
   name = "TESTMAP"
}


map TEST01 "TRYING A NEW TEST MAP"
{
   evenlighting
   next = "TEST02"
}

map TEST02 "SECOND TEST MAP"
{
   evenlighting
}
and, in addition, levels can be given descriptive title names.
LonieHaag
Posts: 3
Joined: Wed Apr 23, 2025 3:11 am
Operating System Version (Optional): Windows 11
Graphics Processor: Intel (Legacy GZDoom)

Re: Ultimate Doom Builder / GZDDoom help, WAD tests fine in UDB but doesn't launch in GZdoom

Post by LonieHaag »

Kappes Buur wrote: Thu Oct 02, 2025 8:58 pm Normaly one starts a new map by leaving the level name at the default MAP01.
Then GZDoom X Trench Run will use that name and displays the map as designed.

But what happens when the level name is something different, maybe TEST01.
Then, of course, GZDoom assumes the level name to be MAP01 and accordingly
plays the first level of DOOM2.
This can be corrected by adding a MAPINFO lump to the map, something like this:

Code: Select all

clearepisodes
episode "TEST01"
{
   name = "TESTMAP"
}


map TEST01 "TRYING A NEW TEST MAP"
{
   evenlighting
   next = "TEST02"
}

map TEST02 "SECOND TEST MAP"
{
   evenlighting
}
and, in addition, levels can be given descriptive title names.
Thank you so much :D
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