now you can set optional ogl version through the first 2 parameters

MshViewer/Header/OpenGLController.h

@@ -10,7 +10,7 @@
 #define VERTEX_INDEX_UV			1
 
 #define VERTEX_COMPONENTS_XYZ	3
-#define VERTEX_COMPONENTS_UV	4
+#define VERTEX_COMPONENTS_UV	2
 
 #define VERTEX_SIZE_XYZ			(sizeof(float) * VERTEX_COMPONENTS_XYZ)
 #define VERTEX_SIZE_UV			(sizeof(float) * VERTEX_COMPONENTS_UV)
@@ -39,49 +39,49 @@ private:
 // member
 private:
 	// window
-	GLFWwindow* pWindow;
-	std::string sWindowName;
-	int iWidth;
-	int iHeight;
+	GLFWwindow* pWindow			= NULL;
+	std::string sWindowName		= "MeshViewer 2.0 pre-alpha";
+	int iWidth					= 640;
+	int iHeight					= 480;
 
 	// init glfw
-	int iOglMajorVersion;
-	int iOglMinorVersion;
-	int iAntiAliasingLevel;
+	int iOglMajorVersion		= 4;
+	int iOglMinorVersion		= 5;
+	int iAntiAliasingLevel		= 4;
 
-// IDs ==========================
+// IDs ====================================
 	//object data
-	GLuint gluiVertexArrayID;
-	GLuint gluiInstanceBufferID;
-	GLuint gluiVertexBufferID;
+	GLuint gluiVertexArrayID	= 0;
+	GLuint gluiVertexBufferID	= 0;
+	GLuint gluiInstanceBufferID	= 0;
 
 	//obj color
-	GLuint gluiTextureID;
-	GLuint gluiShaderPrgmID;
-	GLuint gluiSamplerID;
+	GLuint gluiTextureID		= 0;
+	GLuint gluiShaderPrgmID		= 0;
+	GLuint gluiSamplerID		= 0;
 
 	//obj transformation
-	GLuint gluiMatrixID;
-// ==============================
+	GLuint gluiMatrixID			= 0;
+// ========================================
 
 	// data
 	std::vector<Modl*> vModels;
 
-// transformation ===============
+// transformation =========================
 	//values
-	float fRotationX;
-	float fRotationY;
-	float fRotationZ;
-	double dTranslationX;
-	double dTranslationY;
-	double dTranslationZ;
+	float fRotationX			= 0;
+	float fRotationY			= 0;
+	float fRotationZ			= 0;
+	double dTranslationX		= 0;
+	double dTranslationY		= 0;
+	double dTranslationZ		= 5;
 
-// ==============================
+// ========================================
 
 	// camera
-	float fFOV;
-	float fMinView;
-	float fMaxView;
+	float fFOV					= 45.0f;
+	float fMinView				= 0.1f;
+	float fMaxView				= 100.0f;
 
 
 ////////////////////////////////////////////////////////////////////////////////////////////
@@ -89,7 +89,6 @@ private:
 private:
 	void processInit();
 
-	void initDefault();
 	void startGLFW();
 	void createWindow();
 	void startGLEW();