week14 阮致峰

1.

到jsyeh.org/3dcg10下載window data glut32.dll

2.

gluPerspective( fovy, aspecy zNear, zFar)
fovy:張開角度
aspecy:長寬比
zNear:近的
zFar:遠的
glutReshapeFunc(resize);
改變視窗大小時，圖不會變形

Step3:
GLUT專案

tatic void resize(int width, int height)

{

    const float ar = (float) width / (float) height;

    glViewport(0, 0, width, height);

    glMatrixMode(GL_PROJECTION);

    glLoadIdentity();

    glFrustum(-ar, ar, -1.0, 1.0, 2.0, 100.0);

    glMatrixMode(GL_MODELVIEW);

    glLoadIdentity() ;

    gluLookAt(0,3,3, 0,0,0, 0,1,0);

}

gluLookAt(0,3,3, 0,0,0, 0,1,0);