1123123

#include <GL/glut.h>
#include <opencv/highgui.h>
#include <opencv/cv.h>
float angleX =0;

void myTexture()
{
 GLuint id;
 IplImage * img = cvLoadImage("123.jpg");
 cvCvtColor(img, img, CV_BGR2RGB);
 glEnable(GL_TEXTURE_2D);
 glGenTextures(1, &id);
 glBindTexture(GL_TEXTURE_2D, id);
 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, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);
}
void keyboard(unsigned char key, int x, int y)
{
 if(key=='1') angleX+=5;
 if(key=='2') angleX-=5;
 glutPostRedisplay();//請電腦重新畫一次畫面
}

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);
}

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();
 }

int main()
 {
  glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
  glutCreateWindow("week11");
 
 glutDisplayFunc(display);
  glutKeyboardFunc(keyboard);
 
 myTexture();
  myLight();
  glutMainLoop();
 }