week12_木偶人_貼圖

void myTexture()
{
glEnable(GL_TEXTURE_2D);
IplImage *img = cvLoadImage("imgBody.png");
cvCvtColor(img, img, CV_BGR2RGB);
GLuint id;
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 display()

{

glEnable(GL_DEPTH_TEST);

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

glPushMatrix();

glPushMatrix();

glScalef(0.2, 0.5, 0.5);

glBegin(GL_POLYGON);

glTexCoord2f(0, 0); glVertex3f(-0.5, 0.5, 0);

glTexCoord2f(0, 1); glVertex3f(-0.5,-0.5, 0);

glTexCoord2f(1, 1); glVertex3f( 0.5,-0.5, 0);

glTexCoord2f(1, 0); glVertex3f( 0.5, 0.5, 0);

glEnd();

glPopMatrix();

glPopMatrix();

glutSwapBuffers();

}

void myRect()//技巧1: 重覆的程式碼, 用函式拉出來, 就不用一直copy啦

{//函式就是 黑盒子 幫你做事情!

glPushMatrix();

glScalef(0.2, 0.5, 0.5);

glBegin(GL_POLYGON);

glTexCoord2f(0,0);  glVertex3f(-0.5, 0.5,0);

glTexCoord2f(0,1);  glVertex3f(-0.5,-0.5,0);

glTexCoord2f(1,1);  glVertex3f( 0.5,-0.5,0);

glTexCoord2f(1,0);  glVertex3f( 0.5, 0.5,0);

glEnd();

glPopMatrix(); 

}

void display()

{

glEnable(GL_DEPTH_TEST);

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

glPushMatrix();

myRect();//body//技巧1: 用函式, 哥就是帥!

glPushMatrix();//left hand

glTranslatef(-0.1, 0, 0);

glRotatef(angleX, 0,0,1);

glTranslatef(0, 0.25, 0);

myRect();//技巧1: 用函式, 哥就是帥!

glPopMatrix();

glPushMatrix();//right hand

glTranslatef( 0.1, 0, 0);

glRotatef(-angleX, 0,0,1);

glTranslatef(0, 0.25, 0);

myRect();//技巧1: 用函式, 哥就是帥!

glPopMatrix();

glPushMatrix();//左大腿

glTranslatef( -0.05, -0.25, 0);

glRotatef(180-angleX, 0,0,1);

glTranslatef(0, 0.25, 0);

myRect();

glPushMatrix();//左小腿

glTranslatef( 0, 0.25, 0);

glRotatef(30, 0,0,1);

glTranslatef(0, 0.15, 0);

myRect();

glPopMatrix();   

glPopMatrix();

glPushMatrix();//右大腿

glTranslatef( 0.05, -0.25, 0);

glRotatef(-(180-angleX), 0,0,1);

glTranslatef(0, 0.25, 0);

myRect();

glPushMatrix();//右小腿

glTranslatef( 0, 0.25, 0);

glRotatef(-30, 0,0,1);

glTranslatef(0, 0.15, 0);

myRect();

glPopMatrix(); 

glPopMatrix();

glPopMatrix();

glutSwapBuffers();

}