Question

After reading google, I still don’t quite understand what this does/means? Could someone explain this? Possibly a simple example? Thank you very much.

Answer 1

Normalizing a vector means changing its components so its total length is equal to 1.

In pseudo-code:

length = sqrt((vec.x * vec.x) + (vec.y * vec.y) + (vec.z * vec.z))
vec.x /= length
vec.y /= length
vec.z /= length

This has many uses in real-time 3D, as normed vectors have interesting properties.