A

 WEEK10

1.貼圖

#include<GL/glut.h> #include <opencv/highgui.h> #include <opencv/cv.h> #include <GL/glut.h> int myTexture(char * filename) { IplImage * img = cvLoadImage(filename); cvCvtColor(img,img, CV_BGR2RGB); glEnable(GL_TEXTURE_2D); GLuint id; glGenTextures(1, &id); glBindTexture(GL_TEXTURE_2D, id); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData); return id; } void display() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glBegin(GL_POLYGON); glTexCoord2f(0,1); glVertex2f(-1,-1); glTexCoord2f(1,1); glVertex2f(1,-1); glTexCoord2f(1,0); glVertex2f(1,1); glTexCoord2f(0,0); glVertex2f(-1,1); glEnd(); glutSwapBuffers(); } int main(int argc,char** argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); glutCreateWindow("week10 texture background"); glutDisplayFunc(display); myTexture("earth.jpg"); glutMainLoop(); } 2.球不會貼 #include <opencv/highgui.h>  #include <opencv/cv.h> #include <GL/glut.h> GLUquadric * sphere =NULL;  int myTexture(char * filename) {     IplImage * img = cvLoadImage(filename);      cvCvtColor(img,img, CV_BGR2RGB);      glEnable(GL_TEXTURE_2D);      GLuint id;      glGenTextures(1, &id);      glBindTexture(GL_TEXTURE_2D, id);      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);     return id; } void display(){     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);     gluQuadricTexture(sphere, 1);      gluSphere(sphere, 1, 30, 30);      glutSwapBuffers(); } int main(int argc, char**argv){     glutInit( &argc, argv );     glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);     glutCreateWindow("week09 texture");     glutDisplayFunc(display);     myTexture("OIP.png");      sphere=gluNewQuadric();      glutMainLoop(); }