public Vector23f projectGroud(Point2D.Float _p) {
Vector23f p =
new Vector23f(_p.x + (eye.x - width / 2), _p.y + (eye.y - height / 2), viewPlane.d);
Ray3f eye2P = new Ray3f(eye, p);
Vector23f proj = eye2P.intersect(ground);
return proj;
}
public Point projectScreen(Vector23f p) {
Ray3f eye2P = new Ray3f(eye, p);
Vector23f proj = eye2P.intersect(viewPlane);
proj.x -= (eye.x - width / 2);
proj.y -= (eye.y - height / 2);
return new Point((int) proj.x, (int) proj.y);
}