初学者的疑问。。。

zhy0408

glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
        gluOrtho2D(-4.0,4.0,-4.0,4.0);
        glClear(GL_COLOR_BUFFER_BIT);
        glMatrixMode(GL_MODELVIEW);
        glLoadIdentity();

//        gluLookAt(1.0,1.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0);
        gluLookAt(0.1,0.1,0.1,0.0,0.0,0.0,0.0,1.0,0.0);

        glutWireCube(0.5);
        glutSwapBuffers();



这里为什么第一个gluLookAt() 看不到这个正方体，而第二个gluLookAt() 却能看到这个正方体？

zhy0408

我知道了，写错了，写成gluOrtho2D了，应该是glOrtho