bool IntrPlane3Ellipsoid3<Real>::EllipsoidIsCulled () const
{
Matrix3<Real> MInverse;
mEllipsoid->GetMInverse(MInverse);
Real discr = MInverse.QForm(mPlane->Normal,mPlane->Normal);
Real root = Math<Real>::Sqrt(Math<Real>::FAbs(discr));
Real sDist = mPlane->DistanceTo(mEllipsoid->Center);
return sDist <= -root;
}
bool IntrPlane3Ellipsoid3<Real>::Test ()
{
Matrix3<Real> MInverse;
mEllipsoid->GetMInverse(MInverse);
Real discr = MInverse.QForm(mPlane->Normal,mPlane->Normal);
Real root = Math<Real>::Sqrt(Math<Real>::FAbs(discr));
Real sDist = mPlane->DistanceTo(mEllipsoid->Center);
return Math<Real>::FAbs(sDist) <= root;
}