void add_postprocessor(Msp::GL::PostProcessor &);
void set_camera(const Msp::GL::Camera &);
Msp::GL::Camera &get_camera() { return camera; }
void add_postprocessor(Msp::GL::PostProcessor &);
void set_camera(const Msp::GL::Camera &);
Msp::GL::Camera &get_camera() { return camera; }