inverted coordinates

int InitGL(GLvoid)									{	glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );	glDisable( GL_TEXTURE_2D );								//disable two dimensional texture mapping	glDisable( GL_LIGHTING );								//disable lighting	glDisable( GL_BLEND );									//disable blending	glEnable(GL_CULL_FACE);	glEnable( GL_DEPTH_TEST );								//enable depth testing	glShadeModel( GL_SMOOTH );								//enable smooth shading	glClearDepth( 1.0 );									//depth buffer setup	glDepthFunc( GL_LEQUAL );								//set the type of depth test	glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST );		glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );	//LoadRawFile("Data/Terrain.raw", MAP_SIZE * MAP_SIZE, g_HeightMap);		return TRUE;										}

GLvoid ReSizeGLScene(GLsizei width, GLsizei height)		// Resize And Initialize The GL Window{	if (height==0)										// Prevent A Divide By Zero By		height=1;										// Making Height Equal One	glViewport(0,0,width,height);						// Reset The Current Viewport	glMatrixMode(GL_PROJECTION);						// Select The Projection Matrix	glLoadIdentity();									// Reset The Projection Matrix	// Calculate The Aspect Ratio Of The Window.  Farthest Distance Changed To 500.0f (NEW)	gluPerspective(45.0f, (GLfloat)width/(GLfloat)height, 0.1f, 5000.0f);	glMatrixMode(GL_MODELVIEW);							// Select The Modelview Matrix	glLoadIdentity();									// Reset The Modelview Matrix}

#ifndef _CAMERA_H_#define _CAMERA_H_#include "Vector.h"class CCAMERA{	public:		CVECTOR Position;		CVECTOR LookAt;		CVECTOR Forward;		CVECTOR Up;		CVECTOR Side;		float Yaw;		float Pitch;		CCAMERA()		{			Up.Set( 0.0f, 1.0f, 0.0f );			Side.Set( 1.0f, 0.0f, 0.0f );		}		CCAMERA(float px, float py, float pz, float lx, float ly, float lz, float ux, float uy, float uz)		{			Position.Set( px, py, pz );			LookAt.Set( lx, ly, lz );			Up.Set( ux, uy, uz );						Side.Set( 1.0f, 0.0f, 0.0f );		}		void Update()		{			if( ( Yaw>=360.0f) || ( Yaw<=-360.0f ) )				Yaw= 0.0f;			if( Pitch>80.0f )				Pitch= 80.0f;			if( Pitch<-80.0f )				Pitch= -80.0f;		     			float cosYaw  = cosf( DEG_TO_RAD( Yaw ) );			float sinYaw  = sinf( DEG_TO_RAD( Yaw ) );			float sinPitch= sinf( DEG_TO_RAD( Pitch ) );			float cosPitch= cosf( DEG_TO_RAD( Pitch ) );			Forward.x= sinYaw * cosPitch;			Forward.y= sinPitch;			Forward.z= cosPitch * -cosYaw;			LookAt = Position + Forward;			Side= Forward.CrossVector( Up );			gluLookAt(Position.x, Position.y, Position.z,				  LookAt.x, LookAt.y, LookAt.z,				  Up.x, Up.y, Up.z);		}		void SetPosition(float x, float y, float z)		{			Position.x = x; Position.y = y; Position.z = z;		}		void SetLookAt(float x, float y, float z)		{			LookAt.x = x; LookAt.y = y; LookAt.z = z;		}		void SetForward(float x, float y, float z)		{			Forward.x = x; Forward.y = y; Forward.z = z;		}		private:};#endif

void CTERRAIN::Render(CCAMERA* cam){		glBegin(GL_LINES);			glColor3f(1.0f, 0.0f, 0.0f);			glVertex3f(0,0, 0);			glVertex3f(256, 0,0);				glEnd();	glBegin(GL_LINES);			glColor3f(0.0f, 0.0f, 1.0f);			glVertex3f(0,0, 0);			glVertex3f(0,0, 256);				glEnd();		glColor4f(1.0f, 1.0f, 1.0f, 1.0f);	//RenderMatrix();} 

int DrawGLScene(GLvoid)									{	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);		glLoadIdentity();										Camera.Update();	//glScalef(scaleValue, scaleValue * HEIGHT_RATIO, scaleValue);	Terrain.Render(&Camera);	return TRUE;									}

CCAMERA Camera(212, 50, 194,  0, 0, 0,  0, 1, 0);