#include <GL/glut.h>
#include<opencv/highgui.h>
#include<opencv/cv.h>
 IplImage * img1,* img2, * img3,* img4;
 GLuint id1,id2,id3,id4;
 float angleX=0;



void myTexture()
{

img1 = cvLoadImage("1.png");
img2 = cvLoadImage("2.png");
img3 = cvLoadImage("3.png");

  cvCvtColor(img1, img1, CV_BGR2RGB);
  cvCvtColor(img2, img2, CV_BGR2RGB);
  cvCvtColor(img3, img3, CV_BGR2RGB);

glEnable(GL_TEXTURE_2D);
glGenTextures(1, &id1);
glGenTextures(1, &id2);
glGenTextures(1, &id3);


glBindTexture(GL_TEXTURE_2D, id1);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img1->width, img1->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img1->imageData);


glBindTexture(GL_TEXTURE_2D, id2);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img2->width, img2->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img2->imageData);
glBindTexture(GL_TEXTURE_2D, id3);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img3->width, img3->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img3->imageData);
}


void display()
{
 glEnable(GL_DEPTH_TEST);
 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 glPushMatrix();
  glRotatef(angleX, 0,1,0);
  glutSolidTeapot(0.3);
 glPopMatrix();
 glutSwapBuffers();
}
void keyboard(unsigned char key, int x, int y)
{
     if(key=='a') angleX+=3;
     if(key=='b') angleX-=3;
     glutPostRedisplay();
       
}
void myLight()
{
 const GLfloat light_position[] = { 2.0f, 5.0f, -5.0f, 0.0f };
 glEnable(GL_LIGHT0);
 glEnable(GL_NORMALIZE);
 glEnable(GL_COLOR_MATERIAL);
 glEnable(GL_LIGHTING);
 glLightfv(GL_LIGHT0, GL_POSITION, light_position);
}
int main()
{
 glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);
 glutCreateWindow("week12");
 glutDisplayFunc(display);
 glutKeyboardFunc(keyboard);
 myLight();
 glutMainLoop();
}

按A B  可轉動的茶壺

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