void blend(BlendFactor, BlendFactor);
void blend_predefined(const std::string &);
void depth_test(Predicate);
void depth_test_predefined(const std::string &);
void lighting(const std::string &);
void lighting_inline();
void blend(BlendFactor, BlendFactor);
void blend_predefined(const std::string &);
void depth_test(Predicate);
void depth_test_predefined(const std::string &);
void lighting(const std::string &);
void lighting_inline();