Week1 藍振瑋 電腦圖學上課筆記

(0)介紹今天的內容，直播

(1)示範:myEarth.zip變背景貼圖
freeglut裝桌面\freeglut\include\lib\bin
OpenCV2.1裝C:\OpenCV2.1\include\lib\bin
把display裡///畫地球

程式:
glBegin(GL_POLYGON);///開始要畫背景
        ///前面是貼圖座標，後面是3D頂點
        glTexCoord2f(0,0);glVertex3f(-1,+1,0);
        glTexCoord2f(1,0);glVertex3f(+1,+1,0);
        glTexCoord2f(1,1);glVertex3f(+1,-1,0);
        glTexCoord2f(0,1);glVertex3f(-1,-1,0);
        glEnd();