find_package(OpenAL REQUIRED)
find_package(ALUT REQUIRED)
find_package(OpenSceneGraph 2.8.1 REQUIRED osgText osgSim osgDB osgParticle osgUtil)
find_package(OpenAL REQUIRED)
find_package(ALUT REQUIRED)
find_package(OpenSceneGraph 2.8.1 REQUIRED osgText osgSim osgDB osgParticle osgUtil)