ADD_SOURCE_FILES(ORXONOX_SRC_FILES
  Billboard.cc
  BlinkingBillboard.cc
  FadingBillboard.cc
  GlobalShader.cc
  Model.cc
  ParticleEmitter.cc
  ParticleSpawner.cc
COMPILATION_BEGIN GraphicsCompilation.cc
  Backlight.cc
  Camera.cc
  Light.cc
COMPILATION_END
)