Vaeb's Camera Interpolation

local LP = game:GetService("Players").LocalPlayer
local Char = LP.Character

local Camera = workspace.CurrentCamera
local RenderStepped = game:GetService("RunService").RenderStepped

local OverrideNum = 1
local Operating = false

Camera.CameraType = "Scriptable"

function TweenCamera(EndPos, EndFocus, Override, WaitForCompletion, TweenTime, StayFocused, useSin)
    local function TweenFunc()
        if Override and Operating then
            OverrideNum = OverrideNum+1
        elseif Operating then
            return false
        end
        Operating = true

        local OverrideID = OverrideNum
        local Interval = (1/(TweenTime/RenderStepped:wait()))

        local StartCF = Camera.CFrame
        local EndCF = CFrame.new(EndPos, EndFocus)

        for i = 0, 1, Interval do
            i = useSin and math.sin(math.pi/2*i) or i

            local newCamCF = StartCF:lerp(EndCF, i)
            Camera.CFrame = (not StayFocused and newCamCF) or CFrame.new(newCamCF.p, EndFocus)

            RenderStepped:wait() --Use RenderStepped for anything camera related!!!

            if OverrideNum ~= OverrideID then
                return false
            end
        end

        Operating = false
        Camera.CFrame = EndCF
        return true
    end

    if WaitForCompletion then
        TweenFunc()
    else
        coroutine.resume(coroutine.create(TweenFunc))
    end
end

---EXAMPLE USAGE---

local StartCamOffset = Char.Head.CFrame:toObjectSpace(Camera.CFrame) --(Gets original camera offset to use later)

TweenCamera(Vector3.new(60, 60, 60), Vector3.new(10, 60, 70), true, true, 3, false, true)

--Key: Description [Parameter]

--Tweens position to Vector3.new(60, 60, 60) pointing towards Vector3.new(10, 60, 70) in a half sine wave effect [1] [2] [7]
--Doesn't always point towards Vector3.new(10, 60, 70) (focus will tween too) [6]
--Yields return until the 3 seconds of interpolation has completed [4] [5]
--The interpolation can be overriden at any time by calling the function midway [3]

TweenCamera(Vector3.new(40, 50, 30), Vector3.new(-30, 40, -50), true, true, 2, false, true)

TweenCamera((Char.Head.CFrame * StartCamOffset).p, Char.Head.CFrame.p, true, true, 4, false, false) --Tweens back to the original offset

Camera.CameraSubject = Char.Humanoid
Camera.CameraType = "Custom"