add_subdirectory(audio)
add_subdirectory(dem)
add_subdirectory(fonts)
add_subdirectory(gui)
add_subdirectory(materials)
add_subdirectory(models)
if (${OGRE_VERSION} GREATER 1.8.0)
  add_subdirectory(rtshaderlib150)
else ()
  add_subdirectory(rtshaderlib)
endif()
add_subdirectory(skyx)
