On my system, the bsp file is here:
C:/Program Files/The Game Creators/Dark Basic Professional/Help/tutorials/world/ikzdm1.bsp
As are the textures it uses.
The skybox is in another directory. That is just the structure used.
Tut4a shows you this, but it appears to be the wrong call for a bsp that is outside of a pk3 file!:
rem TUT4A
rem Load BSP world and sky model
load bsp "world/ikzdm1.pk3","ikzdm1.bsp"
SkyObj=1 : load object "models/sky/am.x",SkyObj
So, try this for TUT4A:
rem TUT4A
rem Load BSP world and sky model
load bsp "", "world/ikzdm1.bsp"SkyObj=1 : load object "models/sky/am.x",SkyObj
The way it shows is actually much better, but for some reason...it is not matching what the media directory is providing. That is not good.
Anyway, they are x models, skyboxes and skyspheres. Try the AT code, it has the best use of them, imo...hopefully, it still works!