Camera jittering during a tween

[RodsterInk666YT (Rod)]

I’m currently making a simple crouching system for my game. The crouching works fine! Animation plays, camera moves down and you can fit under tighter spaces. However, while the camera is moving downwards there is a weird jitter to it that is really jarring and nearly always happens when both crouching and un-crouching.

Here’s a clip of it happening

I have tried looking through the code to find any general issues, trying to change the camera type and looking through the output for any errors but there aren’t any.

Here’s the code I use:

--Variables--
local UIS = game:GetService('UserInputService')
local RunService = game:GetService("RunService")
local TweenService = game:GetService("TweenService")
local Player = game.Players.LocalPlayer
local Character = Player.Character
local Humanoid = Character:WaitForChild("Humanoid")

local IntoRunTweeninfo = TweenInfo.new(0.25, Enum.EasingStyle.Sine, Enum.EasingDirection.Out)
local OutRunTweenInfo = TweenInfo.new(0.5, Enum.EasingStyle.Sine, Enum.EasingDirection.Out)
local CrouchTweenInfo = TweenInfo.new(0.6, Enum.EasingStyle.Sine, Enum.EasingDirection.Out)

local Camera = workspace.CurrentCamera
local CrouchCamPosition = Camera.CFrame * CFrame.new(0, -1.5, -0.9)

local DefaultFoV = 85
local IntroRunProperties = {FieldOfView = DefaultFoV + 10}
local OutOfRunProperties = {FieldOfView = DefaultFoV - 10}
local CrouchIntoProperties = {CameraOffset = Vector3.new(0,-1.5,0)}
local CrouchOutOfProperties = {CameraOffset = Vector3.new(0, 0,0)}

local RunTween = TweenService:Create(game.Workspace.CurrentCamera, IntoRunTweeninfo, IntroRunProperties)
local OutOfRunTween = TweenService:Create(game.Workspace.CurrentCamera, OutRunTweenInfo, OutOfRunProperties)
local IntoCrouchTween = TweenService:Create(Humanoid, CrouchTweenInfo, CrouchIntoProperties)
local OutCrouchTween = TweenService:Create(Humanoid, CrouchTweenInfo, CrouchOutOfProperties)

local RunAnim = script:WaitForChild("RunAnim")
local RunAnimationTrack = Humanoid:LoadAnimation(RunAnim)
local CrouchIdleAnim = script:WaitForChild("CrouchIdleAnim")
local CrouchIdleAnimationTrack = Humanoid:LoadAnimation(CrouchIdleAnim)
local CrouchWalkAnim = script:WaitForChild("CrouchWalkingAnim")
local CrouchWalkAnimationTrack = Humanoid:LoadAnimation(CrouchWalkAnim)

local Running = false
local Crouching = false
local HumanoidMoving = false

local WalkSpeed = 16
local CrouchSpeed = 10
local RunSpeed = 24
local JumpHeight = 7.2
local CrouchJumpHeight = 0
local RunJumpHeight = 8.7

local RunKey = Enum.KeyCode.LeftShift or Enum.KeyCode.ButtonL2
local CrouchKey = Enum.KeyCode.C or Enum.KeyCode.ButtonB

local StaminaAmount = 150
StaminaAmount = math.clamp(StaminaAmount, 0, 150)

--Detecting Input--
UIS.InputBegan:Connect(function(input)
	if input.KeyCode == RunKey then -- Input running
		if StaminaAmount > 0 then
		Running = true
		Crouching = false
		Humanoid.JumpHeight = RunJumpHeight
		Character.Head.CanCollide = true
		RunTween:Play()
			Humanoid.CameraOffset = Vector3.new(0, 0,- 0.9)
		while StaminaAmount > 0 and Running ==  true do -- Stamina decrease
			StaminaAmount = StaminaAmount - 1
				wait(0.1)
				if StaminaAmount <= 0 then -- Ran out of Stamina
					OutOfRunTween:Play()
					Running = false
					Humanoid.JumpHeight = JumpHeight
				end
			end
		end
	elseif input.KeyCode == CrouchKey then -- Input crouch
		Running = false
		Crouching = true
		Character.Head.CanCollide = false
		Humanoid.JumpHeight = CrouchJumpHeight
		IntoCrouchTween:Play()
		wait(0.1)
		Humanoid.CameraOffset = Vector3.new(0, -1.5, -0.9)
	end
end)

--Stopped Input--
UIS.InputEnded:Connect(function(input)
	if input.KeyCode == RunKey then -- Input stopped running
		Running = false
		Humanoid.JumpHeight = JumpHeight
		Character.Head.CanCollide = true
		OutOfRunTween:Play()
		while StaminaAmount < 150 and Running == false do
			StaminaAmount = StaminaAmount + 0.5
			wait(0.1)
			if StaminaAmount <= 0 then
				Running = false
				Humanoid.JumpHeight = JumpHeight
			end
		end
	elseif input.KeyCode == CrouchKey then -- Input stopped crouching
		Crouching = false
		Humanoid.JumpHeight = JumpHeight
		CrouchIdleAnimationTrack:Stop()
		Character.Head.CanCollide = true
		OutCrouchTween:Play()
		wait(0.1)
		Humanoid.CameraOffset = Vector3.new(0, 0, -0.9)
	end
end)

--Detecting Movement--
local function DetectMovement()
	if Humanoid.MoveDirection.Magnitude > 0 then
		HumanoidMoving = true
		if Running == true then -- Player is running
			Humanoid.WalkSpeed = RunSpeed
		elseif Crouching == true then -- Player is crouching
			Humanoid.WalkSpeed = CrouchSpeed
		elseif Running == false and Crouching == false then -- Player is walking
			RunAnimationTrack:Stop()
			CrouchWalkAnimationTrack:Stop()
			CrouchIdleAnimationTrack:Stop()
			Humanoid.WalkSpeed = WalkSpeed
		end
	elseif Humanoid.MoveDirection.Magnitude == 0 then -- Player is not moving
		RunAnimationTrack:Stop()
		CrouchWalkAnimationTrack:Stop()
		HumanoidMoving = false
		Humanoid.WalkSpeed = WalkSpeed
	end
end

RunService.Heartbeat:Connect(DetectMovement)

--Animation--
RunService.Heartbeat:Connect(function()
	if HumanoidMoving == true then
		if Running == true then -- Running
			if not RunAnimationTrack.IsPlaying then
				RunAnimationTrack:Play()
				CrouchWalkAnimationTrack:Stop()
				CrouchIdleAnimationTrack:Stop()
				end
			elseif Crouching == true then --Crouching
				if not CrouchWalkAnimationTrack.IsPlaying then
				CrouchWalkAnimationTrack:Play()
				RunAnimationTrack:Stop()
				end
		end
	elseif HumanoidMoving == false then -- Idle
		if Crouching == true then
			if not CrouchIdleAnimationTrack.IsPlaying then
				CrouchIdleAnimationTrack:Play()
			end
		end
		else
		RunAnimationTrack:Stop()
		CrouchWalkAnimationTrack:Stop()
		CrouchIdleAnimationTrack:Stop()
	end
end)

while true do
	wait(1)
end

I’m not the best with coding so sorry if I’m just being stupid, thank you!! ^^;

[RainingMemory (nat)]

my guess is because during the CameraOffset Tween, you suddenly set the CameraOffset to something else.

the inCrouch tween lasts 0.6 seconds.

but you wait 0.1 seconds and set it to a value in the middle of the tween, causing the jitter

[RodsterInk666YT (Rod)]

THANK YOU OMG!!!

yeah I’m kinda dumb but that makes a lot of sense. Thank you so much!! ^^