SmoothCameraShake

local camera = workspace.CurrentCamera
local humanoid = script.Parent:WaitForChild("Humanoid")

local start = tick()


function shakeCamera(initialTrauma, shakeCentre, blur)
    --initialTrauma (necessary, number) = intensity of camera shake
    --shakeCentre (optional, vector3) = position of shake; distance between shake and camera reduces intensity if shakeCentre is given
    --blur (optional, bool) = create blur effect with camera shake

    local iterator = 0
    local seed = Random.new():NextNumber()

    local blurEffect = nil
    if blur == true then
        blurEffect = Instance.new("BlurEffect")
        blurEffect.Size = 0
        blurEffect.Parent = game.Lighting
    end

    while initialTrauma > 0 do

        game:GetService("RunService").Heartbeat:Wait()

        local now = tick() - start

        iterator += 1

        local shake = (initialTrauma ^ 2)

        if shakeCentre then
            local distance = (camera.CFrame.Position - shakeCentre).Magnitude

            shake = shake / math.clamp((distance * 0.1), 0.7, math.huge)
        end

        local noiseX = (math.noise(iterator, now, seed)) * shake
        local noiseY = (math.noise(iterator + 1, now, seed)) * shake
        local noiseZ = (math.noise(iterator + 2 + 1, now, seed)) * shake

        humanoid.CameraOffset = Vector3.new(noiseX, noiseY, noiseZ)
        camera.CFrame = camera.CFrame * CFrame.Angles(noiseX / 50, noiseY / 50, noiseZ / 50)

        if blurEffect then
            blurEffect.Size = shake * 12
        end

        local falloffSpeed = 1.6
        initialTrauma = math.clamp(initialTrauma - falloffSpeed * game:GetService("RunService").Heartbeat:Wait(), 0, 1)
    end

    humanoid.CameraOffset = Vector3.new(0, 0, 0)

    if blurEffect then
        blurEffect:Destroy()
    end
end

--example of use:
shakeCamera(1, script.Parent.HumanoidRootPart.Position, true)