instance was not the right thing for me,

now it's working

MshViewer/Header/OpenGLController.h

@@ -53,7 +53,6 @@ private:
 	//object data
 	GLuint gluiVertexArrayID	= 0;
 	GLuint gluiVertexBufferID	= 0;
-	GLuint gluiInstanceBufferID	= 0;
 
 	//obj color
 	GLuint gluiTextureID		= 0;