ADD_SOURCE_FILES(ORXONOX_SRC_FILES Billboard.cc BlinkingBillboard.cc FadingBillboard.cc GlobalShader.cc MeshLodInformation.cc Model.cc AnimatedModel.cc ParticleEmitter.cc ParticleSpawner.cc BUILD_UNIT GraphicsBuildUnit.cc Backlight.cc Camera.cc LensFlare.cc Light.cc END_BUILD_UNIT )