public PartSeparator_Part(Point3D[] convexPoints, double mass, Point3D position, Quaternion orientation)
{
_isLooseProps = true;
_convexPoints = convexPoints;
_mass = mass;
_position = position;
_orientation = orientation;
_size = new Vector3D(
convexPoints.Max(o => Math.Abs(o.X)),
convexPoints.Max(o => Math.Abs(o.Y)),
convexPoints.Max(o => Math.Abs(o.Z)));
}