01160456_謝之麟, HW012, Week12

#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 mtTexture()
{
 img1=cvLoadImage("body.jpg");
 img2=cvLoadImage("hand1.jpg");
 img3=cvLoadImage("leg1.jpg");

 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();
}