Vector math please help

[TF_Killer (Nezui)]

hi there im trying to making a lighting bolt follow this tutorial !

How do I make a squiggly lightning bolt effect?

the way I would do it is by getting a starting point and an end point. [image] then I would get the distance between both points and divide that into different points [image] then randomize each points position by like 2-3 studs besides the start and end point [image] lastly connect all the points together with parts and profit? [image] –I tried this out and this is what I got after I added effects of course– https://gyazo.com/549ecf3ee0f5328f429baa144b5372db

but its acting wrieed

Hes my script

local red = workspace.Red
local blue = workspace.Blue
local i = Instance

for i = 1 , 10 do
	local lighting = Instance.new("Part")
	lighting.Parent = workspace
	lighting.Anchored  = true
	local leth = blue.Position - red.Position
	
	lighting.Position = red.Position + (leth / i ) * Vector3.new(0,0,math.random(1,3),0,0)	
end