Changing a Vector into a Unit Vector?
Hi there I am trying to turn a raycast into multiple segments. I was looking online an stuff... I guess I need to divide it's xyz's by its magnitude(length). But how would I do that in ROBLOX or in computers in general? The raycast is going to be shot in different directions every time, so how would I calculate that? I am guessing I need divide XYZs by length using variables, but where would I get the XYZs from? Thank you.
1 answer
If you would like to convert a vector into me, you can divide it by it's own magnitude. Dividing a vector by it's magnitude results in a unit vector, which is defined as direction with a length of one. This is useful in situations where you want to define the magnitude of the vector yourself for things like speed, force, etc. Take the following code for example:
local vecU = Vector3.new(0,0,0)
local vecH = Vector3.new(10,10,10)
local function getUnitVector(vec)
return vec/vec.Magnitude
end
print( getUnitVector(vecH - vecU) )
This is how it would normally be done. For convenience, ROBLOX provides a property of all vectors called Unit, which does this calculation for us. The following code would do the same as above:
print( Vector3.new(x, y, z).Unit )
Let me know if you have any questions!
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