Auto Exposure Script not Working

Help and Feedback Scripting Support
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#1

Hey! I am DomTheMomRBLX. I made an Auto Exposure script, but its not working…

local Camera = game.Workspace.CurrentCamera
local l1 = Camera.CFrame.LookVector
local l2 = (game.Workspace.gaga.Position - Camera.CFrame.Position).Unit
local mIntensity = l1:Dot(l2)

while wait() do
	mIntensity = (mIntensity + 1) * 0.5
	game.Lighting.ExposureCompensation = mIntensity
end

What am I doing wrong?
(I want it to look like this: Dynamic Exposure - Roblox)

#2

Move the dot product inside the loop

Actually move everything inside the loop