Hey,

When you normalise a 3d vertex/vector you make sure it is within the range of 0-1 (or -1)...

Is this basically to turn it from a position in 3d space to a direction? im trying to understand alot more about 3d maths and things, its easy enough to copy code and vaugley understand what its doing and why its doing it... but i wanted to try to make sure my understanding was correct...