/**
* Normalize this quaternion if it is large enough.
* If it is too small, returns an identity quaternion.
*
* @param Tolerance Minimum squared length of quaternion for normalization.
*/
public void Normalize(float Tolerance = Const.SMALL_NUMBER)
{
float SquareSum = X * X + Y * Y + Z * Z + W * W;
if (SquareSum >= Tolerance)
{
float Scale = FMath.InvSqrt(SquareSum);
X *= Scale;
Y *= Scale;
Z *= Scale;
W *= Scale;
}
else
{
this = FQuat.Identity;
}
}
