/// <summary>
/// Normalizes this vector.
/// </summary>
public void Normalize()
{
float fInvLen = MathHelpers.ReciprocalSquareRoot(this.X * this.X + this.Y * this.Y + this.Z * this.Z);
this.X *= fInvLen; this.Y *= fInvLen; this.Z *= fInvLen;
}