week16

1.表頭加入float eyeX=0.1,eyeY=0.1,eyeZ=0.3, objX=0,objY=0,objZ=0, upX=0,upY=0,upZ=1;

程式碼中gluLookAt(eyeX,eyeY,eyeZ, objX,objY,objZ, upX,upY,upZ);

2.if(key=='o'){

glMatrixMode(GL_PROJECTION);

glLoadIdentity();

glOrtho(-2,2,-2,2,-2,2);

glMatrixMode(GL_MODELVIEW);

}