I managed to get it sort of working, problem is the image appears in front of everything...

Code:
ENTITY* skycubepic =
{
	
  x = 2000;
  y = 0;
  z = 0;
  type = "cosmo_f02+6.bmp"; // SET BY USER
  flags2 = SKY | SHOW | SCENE; 
}

Decessus - 80% done. 100% abandoned.
GET MY ANDROID GAME! https://play.google.com/store/apps/details?id=com.lasertrain.zspinballfree&hl=en