CHanging skyboxs for a level in the boom engine

[FrillsTheLizard]

Hey hi i'm currently working on a single level wad in the boom engine; i've been using a texture pack that're the doom 1 textures for doom 2 and thus have created a Texture 1 lump and all that jazz. However I've ran into an issue in that i've been having problems making the sky box the skybox of episode 2 of doom 1. All the tutorials i can find on youtube are not compatible with the engine i am using and thus i've come to here for help.

[ViolentBeetle]

Do you want a specific level to have this particular sky, or are you Ok with changing sky of the entire episode?

[Kappes Buur]

BOOM has a line special 271 Transfer Sky Texture to Tagged Sector, with which you can give each map, or even each sector, a new sky.

 

The best example is in Eviternity

 

Stick the new sky image between P_ or PP_ markers and include the patch in TEXTURE1 or TEXTURE2 and PNAMES.

 

Edited December 1, 2020 by Kappes Buur

[FrillsTheLizard]

2 hours ago, ViolentBeetle said:

Do you want a specific level to have this particular sky, or are you Ok with changing sky of the entire episode?

Since it's a single level wad either one works

[ViolentBeetle]

9 minutes ago, FrillsTheLizard said:

Since it's a single level wad either one works

So the sky is actually a wall texture. Meaning it's composed out of one or more "patches". To make a patch you need to put a graphical lump between P_START and P_END markers. This is not immediately obvious and might be the first point of failure for you. If your new sky texture is also 256x128 you can just call this patch R_SKY1 and call it a day, it will overwrite the original patch and produces the new kind of texture.

 

If it's a different size, you would also need copy over TEXTURE1 lump from base game and change SKY1 texture. If you add a patch of different name you would also need to bring in PATCHES lump and add it there. SLADE has functionality for that if you right-click on your patch lump.

[FrillsTheLizard]

32 minutes ago, ViolentBeetle said:

So the sky is actually a wall texture. Meaning it's composed out of one or more "patches". To make a patch you need to put a graphical lump between P_START and P_END markers. This is not immediately obvious and might be the first point of failure for you. If your new sky texture is also 256x128 you can just call this patch R_SKY1 and call it a day, it will overwrite the original patch and produces the new kind of texture.

 

If it's a different size, you would also need copy over TEXTURE1 lump from base game and change SKY1 texture. If you add a patch of different name you would also need to bring in PATCHES lump and add it there. SLADE has functionality for that if you right-click on your patch lump.

After fucking around with my already existing texture lump i've thankfully managed to get the sky i wanted by replacing the sky1 texture with the one i wished to use.