How to rotate part facing camera only on y axis?

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1

Overview

I created a few lines that takes the mouse 3D position and calculates distance. I then divide the distance by the hexagon’s longest side (20 studs) and use a for loop to generate the required hexagons needed to get from the player’s torso to the mouse 3D position

Problem

When I cast the cframe onto the part using CFrame.new(pos,lookvector) I can’t get the hexagon to only rotate itself to the mouse’s position on the y rotational axis only. The code always rotates the hexagon on the z rotational axis which I don’t want. I want the hexagons to be flat and look at the mouse position on y rotational axis. How can I achieve this?

Code snippet

function makePath(plr,cf)
	local char=plr.Character or plr.CharacterAdded:Wait()
	local torso=char:WaitForChild('HumanoidRootPart')
	local hex=game.ReplicatedStorage.Storage.Hexagon
	local distance=math.abs((cf.Position-torso.Position).magnitude)
	local partCount=math.floor(distance/hex.Size.X)
	
	local interX=(cf.Position.X-torso.Position.X)/(hex.Size.X/2)
	local interZ=(cf.Position.Z-torso.Position.Z)/(hex.Size.X/2)
	
	for i=1,partCount do
		local newhex=hex:Clone()
		local pos=torso.Position+Vector3.new(interX*i,0,interZ*i)
		pos=CFrame.new(pos,Vector3.new(0,cf.Position.Y,0))
		newhex.CFrame=pos
		newhex.Parent=workspace
	end
end
2

You may want to try:

local pos = torso.Position + Vector3.new(interX * i, 0, interZ * i)
local v = (cf.Position - pos).Unit * Vector3.new(1, 0, 1)
pos = CFrame.new(pos, pos + v)
newhex.CFrame = pos