Triangles and Quads...

            ///Bind the Vertex-Array
            GL.BindVertexArray(m_vertexArrayObject);
 
            ///Draw the Geometry
            GL.DrawArrays(BeginMode.Quads, 0, 4);
 
            ///Check for Errors
            if (GL.GetError() != ErrorCode.NoError)
            {
                Logger.SendToLog("An Error occured while rendering the GroundPlane", LogType.Errors);
            }
 
            ///Unbind the Vertex-Array again
            GL.BindVertexArray(0);

            ///Bind the Vertex-Array
            GL.BindVertexArray(m_vertexArrayObject);
 
            ///Draw the Geometry
            GL.DrawArrays(BeginMode.Triangles, 0, 3);
 
            ///Check for Errors
            if (GL.GetError() != ErrorCode.NoError)
            {
                Logger.SendToLog("An Error occured while rendering the GroundPlane", LogType.Errors);
            }
 
            ///Unbind the Vertex-Array again
            GL.BindVertexArray(0);