CUBEMAP

#include<stdio.h>
#include<stdlib.h>
#ifdef __APPLE__
#include <GLUT/glut.h>
#else
#include <GL/glut.h>
#endif
#include <windows.h>
#include <C:\Program Files (x86)\CodeBlocks\MinGW\include\GL\glut.h>
#include <math.h>
#define PI 3.14159

using namespace std;


int HL=1,angx=30,angy=60;
unsigned char * datos;

float a;

int an1=512,al1=512;//dim imagenes, ancho, alto
unsigned char * imagen1;
unsigned char * imagen2;
unsigned char * imagen3;
unsigned char * imagen4;
unsigned char * imagen5;
unsigned char * imagen6;


int leerImagen1(){
    FILE *imagen;
    imagen=fopen("/Users/Juan/Desktop/cube/negy.RAW","r");
    imagen1=(unsigned char*)malloc(an1*al1*3);
    if(imagen==NULL){
        printf("Error: No imagen");
        return 0;
    }
    fread(imagen1,an1*al1*3,1,imagen);
    fclose(imagen);
    return 1;
}
int leerImagen2(){
    FILE *imagen;
    imagen=fopen("/Users/Juan/Desktop/cube/negx.RAW","r");
    imagen2=(unsigned char*)malloc(an1*al1*3);
    if(imagen==NULL){
        printf("Error: No imagen");
        return 0;
    }
    fread(imagen2,an1*al1*3,1,imagen);
    fclose(imagen);
    return 1;
}
int leerImagen3(){
    FILE *imagen;
    imagen=fopen("/Users/Juan/Desktop/cube/negz.RAW","r");
    imagen3=(unsigned char*)malloc(an1*al1*3);
    if(imagen==NULL){
        printf("Error: No imagen");
        return 0;
    }
    fread(imagen3,an1*al1*3,1,imagen);
    fclose(imagen);
    return 1;
}
int leerImagen4(){

    FILE *imagen;
    imagen=fopen("/Users/Juan/Desktop/cube/posz.RAW","r");
    imagen4=(unsigned char*)malloc(an1*al1*3);
    if(imagen==NULL){
        printf("Error: No imagen");
        return 0;
    }
    fread(imagen4,an1*al1*3,1,imagen);
    fclose(imagen);
    return 1;
}
int leerImagen5(){
    FILE *imagen;
    imagen=fopen("/Users/Juan/Desktop/cube/posx.RAW","r");
    imagen5=(unsigned char*)malloc(an1*al1*3);
    if(imagen==NULL){
        printf("Error: No imagen");
        return 0;
    }
    fread(imagen5,an1*al1*3,1,imagen);
    fclose(imagen);
    return 1;
}
int leerImagen6(){
    FILE *imagen;
    imagen=fopen("/Users/Juan/Desktop/cube/posy.RAW","r");
    imagen6=(unsigned char*)malloc(an1*al1*3);
    if(imagen==NULL){
        printf("Error: No imagen");
        return 0;
    }
    fread(imagen6,an1*al1*3,1,imagen);
    fclose(imagen);
    return 1;
}

void texturaI1(void)
{
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, an1, al1, 0, GL_RGB, GL_UNSIGNED_BYTE, imagen1);
}
void texturaI2(void)
{
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, an1, al1, 0, GL_RGB, GL_UNSIGNED_BYTE, imagen2);
}
void texturaI3(void)
{
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, an1, al1, 0, GL_RGB, GL_UNSIGNED_BYTE, imagen3);
}
void texturaI4(void)
{
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, an1, al1, 0, GL_RGB, GL_UNSIGNED_BYTE, imagen4);
}
void texturaI5(void)
{
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, an1, al1, 0, GL_RGB, GL_UNSIGNED_BYTE, imagen5);
}
void texturaI6(void)
{
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, an1, al1, 0, GL_RGB, GL_UNSIGNED_BYTE, imagen6);
}

void dibujaI1(void)//PISO
{
    glDisable(GL_LIGHTING);
    glColor3f(1,1,1);
    glBegin(GL_QUADS);
    glTexCoord3f(0.0, 1.0,0.0);
    glVertex3f(-100,-100,100);
    glTexCoord3f(0.0, 0.0,0.0);
    glVertex3f(-100,-100,-100);
    glTexCoord3f(1.0, 0.0,0.0);
    glVertex3f(100,-100,-100);
    glTexCoord3f(1.0, 1.0,0.0);
    glVertex3f(100,-100,100);
    glEnd();
    glEnable(GL_LIGHTING);
}

void dibujaI2(void)//negx
{
    glDisable(GL_LIGHTING);
    glColor3f(1,1,1);
    glBegin(GL_QUADS);
    glTexCoord3f(0.0, 1.0,0.0);
    glVertex3f(-100,-100,100);
    glTexCoord3f(0.0, 0.0,0.0);
    glVertex3f(-100,100,100);
    glTexCoord3f(1.0, 0.0,0.0);
    glVertex3f(-100,100,-100);
    glTexCoord3f(1.0, 1.0,0.0);
    glVertex3f(-100,-100,-100);
    glEnd();
    glEnable(GL_LIGHTING);
}

void dibujaI3(void)//negz
{
    glDisable(GL_LIGHTING);
    glColor3f(1,1,1);
    glBegin(GL_QUADS);
    glTexCoord3f(0.0, 1.0,0.0);
    glVertex3f(100,-100,100);
    glTexCoord3f(0.0, 0.0,0.0);
    glVertex3f(100,100,100);
    glTexCoord3f(1.0, 0.0,0.0);
    glVertex3f(-100,100,100);
    glTexCoord3f(1.0, 1.0,0.0);
    glVertex3f(-100,-100,100);
    glEnd();
    glEnable(GL_LIGHTING);
}

void dibujaI4(void)
{
    glDisable(GL_LIGHTING);
    glColor3f(1,1,1);
    glBegin(GL_QUADS);
    glTexCoord3f(0.0, 1.0,0.0);
    glVertex3f(-100,-100,-100);
    glTexCoord3f(0.0, 0.0,0.0);
    glVertex3f(-100,100,-100);
    glTexCoord3f(1.0, 0.0,0.0);
    glVertex3f(100,100,-100);
    glTexCoord3f(1.0, 1.0,0.0);
    glVertex3f(100,-100,-100);
    glEnd();
    glEnable(GL_LIGHTING);
}

void dibujaI5(void)
{
    glDisable(GL_LIGHTING);
    glColor3f(1,1,1);
    glBegin(GL_QUADS);
    glTexCoord3f(0.0, 1.0,0.0);
    glVertex3f(100,-100,-100);
    glTexCoord3f(0.0, 0.0,0.0);
    glVertex3f(100,100,-100);
    glTexCoord3f(1.0, 0.0,0.0);
    glVertex3f(100,100,100);
    glTexCoord3f(1.0, 1.0,0.0);
    glVertex3f(100,-100,100);
    glEnd();
    glEnable(GL_LIGHTING);
}

void dibujaI6(void)
{
    glDisable(GL_LIGHTING);
    glColor3f(1,1,1);
    glBegin(GL_QUADS);
    glTexCoord3f(0.0, 1.0,0.0);
    glVertex3f(-100,100,-100);
    glTexCoord3f(0.0, 0.0,0.0);
    glVertex3f(-100,100,100);
    glTexCoord3f(1.0, 0.0,0.0);
    glVertex3f(100,100,100);
    glTexCoord3f(1.0, 1.0,0.0);
    glVertex3f(100,100,-100);
    glEnd();
    glEnable(GL_LIGHTING);
}

void display(void)
{
    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glMatrixMode(GL_MODELVIEW);

    GLfloat mat_specular[]={1.0,1.0,1.0,1.0};
    GLfloat mat_shininess[]={50.0};
    GLfloat mat_diff[]={1.0,0.5,0.0,0.5};

    glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
    glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
    glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, mat_diff);

glPushMatrix();
    glRotatef(a, 0, 1, 0);
    glColor3f(1,1,1);

    glPushMatrix();
            texturaI1();
            dibujaI1();
            texturaI2();
            dibujaI2();
            texturaI3();
            dibujaI3();
            texturaI4();
            dibujaI4();
            texturaI5();
            dibujaI5();
            texturaI6();
            dibujaI6();
    glPopMatrix();

    glPushMatrix();//TETERA
        glColor3f(1.0, 1.0, 1.0);
        glTranslated(0.0,10,0);
        glutSolidTeapot(2);
    glPopMatrix();
glPopMatrix();
    a += 0.3;
    glutSwapBuffers();
}

void myReshape(int w, int h)
{
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    gluPerspective( 90.0, (GLdouble)w/(GLdouble)h, 0.1,200.0);
    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();
    gluLookAt(0.0, 15.0, 20.0,
              0.0, 7.0, 0.0,
              0.0, 1.0, 0.0);
    glEnable(GL_NORMALIZE);
    glEnable(GL_LIGHTING);
    glEnable(GL_LIGHT0);
    //glEnable(GL_CULL_FACE);
    glCullFace(GL_BACK);
    glShadeModel(GL_SMOOTH);
    glEnable(GL_DEPTH_TEST);
    glEnable(GL_COLOR_MATERIAL);
}

void myIdleFunc(void) {
    glutPostRedisplay();
}

void inicio()
{
    glEnable(GL_TEXTURE_2D);
    glMatrixMode(GL_PROJECTION);
    leerImagen1();
    leerImagen2();
    leerImagen3();
    leerImagen4();
    leerImagen5();
    leerImagen6();
}

int main(int argc, char **argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
    glutInitWindowSize(800, 800);
    glutCreateWindow("3D");
    inicio();
    glutReshapeFunc(myReshape);
    glutDisplayFunc(display);
    glutIdleFunc(myIdleFunc);
    glClearColor(1.0, 1.0, 1.0, 1.0);
    glutMainLoop();
    return 0;
}