Camera Script Acts Different Between Studio and Roblox Player

[koopisapro (Vikx)]

disclaimer:
i am new to devforum but had just a bit of experience on studio, and so i will probably use some tutorial codes though i do understand what the code means or what it does

You can write your topic however you want, but you need to answer these questions:

1. What do you want to achieve? Keep it simple and clear!
   i have put in a camera code to add sway when the player is idle and bobbing when the player is moving

2. What is the issue? Include screenshots / videos if possible!
   the sway works fine on both studio and player, and the bobbing works fine on studio but doesn’t work on player

sway visible (roblox studio) (there is a slight tilt)

sway not visible (roblox player) (completely flat)

3. What solutions have you tried so far? Did you look for solutions on the Developer Hub?
   i thought i didn’t publish the game, but its already published, though was set private and i dont know if that affects the script. and i heard that setting an hrp variable has some issues, though its a localscript.

After that, you should include more details if you have any. Try to make your topic as descriptive as possible, so that it’s easier for people to help you!
i used an asset from youtube that links to a free matketplace model (or script i dont remember)
–!strict is also there but i dont see any errors

here is the code:

--!strict

--[[
Move script to:
	StarterCharacterScripts
	
Made by:
	@isPauI
	YT: @Paul1Rb


Updated: 10.07.2023 - 10:35 CET
Log:
	- Changed the Sway effect to work on CameraOffset because it caused the player to rotate on Y axis since they were in first person.
	
	- Changed line 65 [Cam.CameraType = Enum.CameraType.Scriptable] to .Custom
]]

local Settings : SettingsType = require(script:WaitForChild("Settings"))

type SettingsType = {
	BaseRot : number,
	SetRot : number,
	BaseFreq : number,
	SetFreq : number,
	BaseMult : number,
	BaseNumLerp: number,
	SwayStrenght : number,
	BaseSway : number,
	SetSway : number,
	CustomSwayZVal : number,
	DriftMin : number,
	DriftMax : number,
	Rate : number,
	MaxBlur : number,
	BlurMult : number,
}

local sway : CFrame
local MouseDelta : Vector2
local Vel,t,x,y : number

local sin = math.sin
local cos = math.cos
local rad = math.rad
local abs = math.abs
local sqrt = math.sqrt
local clamp = math.clamp
local round = math.round
local clock = os.clock

local CurrentVel = 0
local Drift = 0
local Limiter = 0

local RunServ = game:GetService("RunService")
local UIS = game:GetService("UserInputService")
local PlrServ = game:GetService("Players")
local Workspace = game:GetService("Workspace")
local LightingServ = game:GetService("Lighting")

local LocalPlr : Player = PlrServ.LocalPlayer

local Cam : Camera = Workspace.CurrentCamera
local BaseFov = Cam.FieldOfView

Cam.CameraType = Enum.CameraType.Custom
LocalPlr.CameraMode = Enum.CameraMode.LockFirstPerson

local char : Model = LocalPlr.Character or LocalPlr.CharacterAdded:Wait()
local hum = char:WaitForChild("Humanoid") :: Humanoid
local HRP = char:WaitForChild("HumanoidRootPart") :: BasePart

--TODO make viewmodel camera basepart
--Cam.CameraSubject = Workspace:FindFirstChild("Rig").Humanoid

function NumLerp(num1: number, num2: number, rate: number) : number
	return num1 + (num2-num1)*rate
end

function CalculateCurve(Base : number, Set : number) : number
	return sin(clock() * Base) * Set
end

function GetVelMag() : number
	return round(Vector3.new(HRP.AssemblyLinearVelocity.X, HRP.AssemblyLinearVelocity.Y, HRP.AssemblyLinearVelocity.Z).Magnitude)
end

function GetMouseDrift(Drift : number, MouseDelta : Vector2, dt : number) : number
	return NumLerp(Drift, clamp(MouseDelta.X, Settings.DriftMin, Settings.DriftMax), (Settings.BaseMult * dt))
end

function GetSwayVal(x:number, y:number) : CFrame
	return CFrame.new(Vector3.new(x, y, 0), Vector3.new(x*.95, y*.95, Settings.CustomSwayZVal)) + Cam.CFrame.Position
end

local function setBlur() : BlurEffect
	local MotionBlur : BlurEffect = LightingServ:FindFirstChild("MotionBlur")
	
	if not MotionBlur then
		local newMotionBlur = Instance.new("BlurEffect")
		newMotionBlur.Size = 0
		newMotionBlur.Name = 'MotionBlur'
		newMotionBlur.Enabled = true
		newMotionBlur.Parent = LightingServ
		
		MotionBlur = newMotionBlur
	end
	
	return MotionBlur
end

local MotionBlur = setBlur()

function ConvCFrameToOrientation(_CFrame: CFrame)
	local setX, setY, setZ = _CFrame:ToOrientation()
	return Vector3.new(math.deg(setX), math.deg(setY), math.deg(setZ))
end

local function CameraUpdt(dt)
	Limiter += dt
	if Limiter >= 1/Settings.Rate then
		t = clock()
		MouseDelta = UIS:GetMouseDelta()
		
		Vel = NumLerp(CurrentVel, GetVelMag(), Settings.BaseNumLerp)
		
		x = cos(t * Settings.BaseSway) * Settings.SetSway
		y = sin(t * Settings.BaseSway) * Settings.SetSway 
		sway = GetSwayVal(x,y)
		
		Drift = GetMouseDrift(Drift, MouseDelta, dt)

		Cam.FieldOfView = BaseFov + sqrt(Vel)
		
		MotionBlur.Size = clamp(abs(Drift*Settings.BlurMult) --[[ & Vel with lower mult]], 0, Settings.MaxBlur)
		
		CurrentVel = Vel
		
		Cam.CFrame = Cam.CFrame--:Lerp(sway * Cam.CFrame.Rotation, Settings.SwayStrenght)
			* CFrame.new(0, CalculateCurve(Settings.BaseFreq, Settings.SetFreq) * Vel / Settings.BaseMult, 0)
			* CFrame.Angles(0, 0, rad(CalculateCurve(Settings.BaseRot, Settings.SetRot) * Vel / Settings.BaseMult) + rad(Drift))
		
		hum.CameraOffset = ConvCFrameToOrientation(sway)
		
		Limiter -= 1/Settings.Rate
	end
end

RunServ:BindToRenderStep("CamEffect", Enum.RenderPriority.Camera.Value, CameraUpdt)

local function reset() : ()
	LocalPlr.CameraMode = Enum.CameraMode.Classic
	--Cam.CameraType = Enum.CameraType.Custom
end

--hum.Died:Once(reset)

Please do not ask people to write entire scripts or design entire systems for you. If you can’t answer the three questions above, you should probably pick a different category.

i am sorry if i dont understand your replies, but help is always appreciated!