Changing Skyboxes [?]

So I'm using Doom Builder II (For zDoom, Doom in Doom format) to make a map. And making a ceiling's texure F_SKY1 works. However when I try SKY1, SKY2, or SKY3, it just shows up as a normal texture. How do I use something like SKY1 instead of F_SKY1? I'm assuming I might need to use something like SLADE to change the data in the .WAD. But I've looked around in the opened file and can't see anything. Help?

this should probably go into Doom Editing, just sayin'
https://www.doomworld.com/vb/doom-editing/

roadworx said:

this should probably go into Doom Editing, just sayin'
https://www.doomworld.com/vb/doom-editing/

you can use scripting for this.
look here: http://zdoom.org/wiki/ChangeSky.you can find the name of textures in SLADE or XWE.

EDIT: A sky is a FLAT. You may want to look here: http://zdoom.org/wiki/Flat

Pure Hellspawn said:

you can use scripting for this.
look here: http://zdoom.org/wiki/ChangeSky.you can find the name of textures in SLADE or XWE.

EDIT: A sky is a FLAT. You may want to look here: http://zdoom.org/wiki/Flat

The sky is a special case. When making the map, you put f_sky1 on the ceiling, but the actual sky is a texture (not a flat) that the engine displays where f_sky1 appears using a special algorithm used only for skies.

If you are mapping for a port that supports it, MAPINFO can be used to specify what texture you want to use as the sky.

Thank you all! Adding a MAPINFO worked.