Hi, I want to convert a Blueprint to C++

I know Light Direction is a FLinearColor, but now, i searched normalize and I found the function, but needs a float arg,so, what is Tolerance?

I found the definition Minimum squared length of vector for normalization, but I dont understand so good.

So, if I’m thinking now, this LinearColor which have

```
Light_Direction.R = -2.0f;
Light_Direction.G = 0.0f;
Light_Direction.B = -1.0f;
Light_Direction.A = 1.0f;
```

So I have a XYZ axes:

So, in my LinearColor, what are X, Y and Z?, let say R = X, G = Y, B = Z, Alpha channel what are?

I found this on youtube: https://www.youtube.com/watch?v=7fn03DIW3Ak

How i should use Normalize function in C++ ?