OpenGL 육면채에 사과무늬 텍스쳐 맵핑하기

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#include <GL/glut.h> #include <GL/glu.h> #include <GL/glaux.h> #include <gl/glut.h>  #include <math.h>  #include <stdio.h> #include <iostream> using namespace std;                              GLfloat xrot=0.9f, yrot=0.8f, zrot=1.0f; unsigned int MyTextureObject[1]; AUX_RGBImageRec *pTextureImage[1]; //텍스쳐 저장 공간을 가리키는 포인터      void MyReshape(int w, int h){                           glViewport(0,0,w,h);     glMatrixMode(GL_PROJECTION);     glLoadIdentity();     gluPerspective(40.0, (GLfloat)w/(GLfloat)h, 1.0, 100.0);     glMatrixMode(GL_MODELVIEW);     glLoadIdentity();     gluLookAt(0.0, 0.0, 5.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0); }   void MyDisplay( ){                                  glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);     glBindTexture(GL_TEXTURE_2D, MyTextureObject[0]);     glBegin(GL_QUADS);     glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);  //앞면     glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);     glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f,  1.0f);     glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f,  1.0f);     glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);  //뒷면     glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);     glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);     glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);     glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);  //윗면     glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f,  1.0f,  1.0f);     glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f,  1.0f,  1.0f);     glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);     glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);  //아랫면     glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);     glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);     glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);     glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);  //우측면     glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);     glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f,  1.0f);     glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);     glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);  //좌측면     glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);     glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f,  1.0f);     glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);     glEnd();     glutSwapBuffers(); }   void MyTimer(int Value){                                glRotatef(xrot,1.0f,0.0f,0.0f); glRotatef(yrot,0.0f,1.0f,0.0f); glRotatef(zrot,0.0f,0.0f,1.0f);     glutPostRedisplay( );     glutTimerFunc(50, MyTimer, 1); }   AUX_RGBImageRec * LoadBMP(char *szFilename){                    FILE * pFile = NULL;     if(!szFilename){         return NULL;     }     pFile = fopen(szFilename,"r");     if(pFile){         fclose(pFile);         return auxDIBImageLoad(szFilename);      //파일로부터 메모리로       }     return NULL; }   int LoadGLTextures(char * szFilePath){       //파일을 로드하고 텍스쳐로 변환     int Status = FALSE;     glClearColor(0.0, 0.0, 0.0, 0.5);     memset(pTextureImage, 0, sizeof(void *)*1);        //포인터를 널로                                //비트맵을 로드하고 오류확인     if (pTextureImage[0]=LoadBMP(szFilePath)){                      Status=TRUE;                //상태 플랙을 True로         glGenTextures(1, &MyTextureObject[0]);  //텍스쳐 생성         glBindTexture(GL_TEXTURE_2D, MyTextureObject[0]);         glTexImage2D(GL_TEXTURE_2D, 0, 3, pTextureImage[0]->sizeX, pTextureImage[0]->sizeY,                     0, GL_RGB, GL_UNSIGNED_BYTE, pTextureImage[0]->data);         glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);         glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);         glEnable(GL_TEXTURE_2D);     }     if (pTextureImage[0]){                  //텍스쳐가 존재하면             if (pTextureImage[0]->data){     //텍스쳐 영상이 존재하면                  free(pTextureImage[0]->data);    //텍스쳐 영상공간 반납         }         free(pTextureImage[0]);             //텍스쳐 반납                }     return Status; }   void main(int argc, char * argv[ ]){                            if(argc <= 1){         printf("\n%s\n\n","Usage : TextureDLG3_Consol.exe [BMPFileName.bmp]");         exit(1);     }     else if(argc > 2){         printf("\nToo Many Arguments!\nArgument is Only one\n");         exit(1);     }     else{         glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);         glutCreateWindow("OpenGL Sample Program");         glutDisplayFunc(MyDisplay);         glutReshapeFunc(MyReshape);         glutTimerFunc(500,MyTimer,1);         if(LoadGLTextures(argv[1])){             glEnable(GL_TEXTURE_2D);             glShadeModel(GL_SMOOTH);             glClearDepth(1.0);             glEnable(GL_DEPTH_TEST);             glDepthFunc(GL_LEQUAL);             glHint(GL_PERSPECTIVE_CORRECTION_HINT,GL_NICEST);             glutMainLoop( );         }     } }