#include "Camera.h"

void Camera::Init() {
    w = tan((90-fov/2)*PI/180.0);
    W = at - eye;
    U = W*up;
    V = U*W;
    U.normalize(); V.normalize(); W.normalize();
    cout << "uvw coord : \n";
    cout << U << endl << V << endl << W << endl; cout << w << endl;
}