internal override float MeasureSubtreeCost()
{
Vector3 offset;
Vector3.Subtract(ref BoundingBox.Max, ref BoundingBox.Min, out offset);
return(offset.X * offset.Y * offset.Z + ChildA.MeasureSubtreeCost() + childB.MeasureSubtreeCost());
}
internal override Fix64 MeasureSubtreeCost()
{
Vector3 offset;
Vector3.Subtract(ref BoundingBox.Max, ref BoundingBox.Min, out offset);
return(Fix64.SafeMul(Fix64.SafeMul(offset.X, offset.Y), offset.Z) + ChildA.MeasureSubtreeCost() + childB.MeasureSubtreeCost());
}