lighting effect:   CMakeLists.txt
	lighting effect:   config.hh
	lighting effect:   planet.cc
	lighting effect:   planet.hh
	lighting effect:   shaders/sphere.gl.frag
	new file:   shaders/star.gl.frag
	lighting effect:   solarsystem.cc
	lighting effect:   solarsystem.hh
        new file:   star.cc
	new file:   star.hh
	keyboard control:   main.cc