5. Matrix transformation functions

• 
      glm::mat4 glm::rotate(
          glm::mat4 const& m,
          float angle,
          glm::vec3 const& axis
          );
  
      glm::mat4 glm::scale(
          glm::mat4 const& m,
          glm::vec3 const& factors
          );
  
      glm::mat4 glm::translate(
          glm::mat4 const& m,
          glm::vec3 const& translation
          );