[EDIT] comments on each function

src/shaders/shader_program.h

@@ -21,29 +21,87 @@ namespace shaders
 		ShaderProgram(std::string& vertex_shader, std::string& fragment_shader);
 		virtual ~ShaderProgram() = default;
 
-		// Call this function after making the shaderprogram (sets all the attributes of the shader)
+		/*
+		 * @brief: Call this function after making the shaderprogram (sets all the attributes of the shader)
+		 */
 		void Init();
-		// Call this function before rendering
+
+		/*
+		 * @brief: Call this function before rendering
+		 */
 		void Start() const;
-		// Call this function after rendering
+
+		/*
+		 * @brief: Call this function after rendering
+		 */
 		void Stop() const;
-		// Call this function when closing the application
+		
+		/*
+		 * @brief: Call this function when closing the application
+		 */
 		void CleanUp() const;
 
 	protected:
-		// Set the inputs of the vertex shader
+		/*
+		 * @brief: Set the inputs of the vertex shader
+		 */
 		virtual void SetAttributes() const = 0;
+
+		/*
+		 * @brief: Sets/binds a input variable (in) to a VBO from the model
+		 *
+		 * @param attribute: The id of the VBO
+		 * @param variable_name: The name of the "in" variable in the shader
+		 */
 		void SetAttribute(const GLuint attribute, const char* variable_name) const;
 
-		// Loads value's (uniform variables) into the shader
+		/*
+		 * @brief: This function loads a float value into a uniform variable into the shader
+		 *
+		 * @param location: The location of the variable in openGL
+		 * @param value: The value which will be loaded into the variable
+		 */
 		void LoadFloat(GLuint location, GLfloat value) const;
+
+		/*
+		 * @brief: This function loads a vector value into a uniform variable into the shader
+		 *
+		 * @param location: The location of the variable in openGL
+		 * @param vector: The value which will be loaded into the variable
+		 */
 		void LoadVector(GLuint location, glm::vec3 vector) const;
+
+		/*
+		 * @brief: This function loads a 4x4 matrix value into a uniform variable into the shader
+		 *
+		 * @param location: The location of the variable in openGL
+		 * @param matrix: The value which will be loaded into the variable
+		 */
 		void LoadMatrix(GLuint location, glm::mat4 matrix) const;
-		
+
+		/*
+		 * @brief: This function will get all the locations of each uniform variable
+		 */
 		virtual void GetAllUniformLocations() = 0;
+
+		/*
+		 * @brief: This function will retrieve the location of a uniform variable
+		 *
+		 * @param uniform_name: The name of the uniform variable
+		 *
+		 * @return: The location of the uniform variable
+		 */
 		GLuint GetUniformLocation(const GLchar* uniform_name) const;
 	
 	private:
+		/*
+		 * @brief: This function will load a shader into openGL
+		 *
+		 * @param shader_string: The shader as a string (the whole code)
+		 * @param type: The type of the shader (Vertex/Fragment)
+		 *
+		 * @return: The id of the shader given by openGL
+		 */
 		GLuint LoadShader(const std::string& shader_string, GLuint type) const;
 	};
 }