Help with camera system rotation

[MalAllie]

I wanted to achieve a first-person like camera system. I cannot use the regular camera, because of other systems I have in the game. The camera can move vertically, but the HumanoidRootPart has to rotate in order for the camera to move horizontally.

In a normal game, you can turn your camera to the side in an unlimited way. However the camera is limited even though I have not set a limit for it.

The issue might be in the line of code where it adds MouseDelta.X, but I couldn’t figure out how to fix it.

local localCf = CFrame.identity
local bounds = math.rad(90)
local offset = Vector3.new(0, 1, 0)

--Putting this in breaks it more
local function correctionLocalCf()
	local x, y, z = localCf:ToEulerAnglesXYZ()
	localCf = CFrame.Angles(x, y, 0)
end

Camera.CameraType = Enum.CameraType.Scriptable
RunService:BindToRenderStep("AttachCamera", Enum.RenderPriority.Camera.Value - 1, function()
	local mouseDelta = -InputService:GetMouseDelta() * math.rad(InputService.MouseDeltaSensitivity / 8)
	InputService.MouseBehavior = Enum.MouseBehavior.LockCenter
	
	local _, previousYaw, _ = localCf:ToEulerAnglesXYZ()
	localCf *= CFrame.Angles(mouseDelta.Y, 0, 0) --= CFrame.Angles(math.clamp(pitch + mouseDelta.Y, -bounds, bounds), yaw + mouseDelta.X, 0)
	--correctionLocalCf()
	--local pitch, yaw, _ = localCf:ToEulerAnglesXYZ()
	--localCf = CFrame.Angles(math.clamp(pitch + mouseDelta.Y, -bounds, bounds), yaw + mouseDelta.X, 0)
	
	local grounded = HumanoidRootPart:GetAttribute("Grounded")
	
	local pitch, yaw, _ = localCf:ToEulerAnglesXYZ()
	
	if previousYaw ~= yaw then
		print(previousYaw, yaw)
	end
	
	local x, y, z = HumanoidRootPart.CFrame:ToEulerAnglesXYZ()
	local toDeg
	
	HumanoidRootPart.CFrame = 
		CFrame.new(HumanoidRootPart.CFrame.Position) * 
		CFrame.Angles(grounded and 0 or x, y + mouseDelta.X, grounded and 0 or z)
	print(y + mouseDelta.X)
	
	local finalCf = Head.CFrame:ToWorldSpace(localCf)
	
	--[[
	if grounded then
		local x, y, _ = finalCf:ToEulerAnglesXYZ()
		finalCf = CFrame.new(finalCf.Position) * CFrame.Angles(x,y, 0)
	end]]
	
	Camera.CameraType = Enum.CameraType.Scriptable
	Camera.CFrame = finalCf --Head.CFrame:ToWorldSpace(localCf)
end)

[dthecoolest]

@MalAllie

	local x, y, z = HumanoidRootPart.CFrame:ToEulerAnglesXYZ()
	local toDeg
	
	HumanoidRootPart.CFrame = 
		CFrame.new(HumanoidRootPart.CFrame.Position) * 
		CFrame.Angles(grounded and 0 or x, y + mouseDelta.X, grounded and 0 or z)
	print(y + mouseDelta.X

Try using orientation terms CFrame.fromOrientation and also eulerAnglesYXZ or :ToOrientation, I find this usually fixes thing and if it doesnt it only takes a small amount of time to try out.

[MalAllie]

local x, y, z = HumanoidRootPart.CFrame:ToOrientation()
	local toDeg
	
	HumanoidRootPart.CFrame = 
		CFrame.new(HumanoidRootPart.CFrame.Position) * 
		CFrame.fromOrientation(grounded and 0 or x, y + mouseDelta.X, grounded and 0 or z)

Did not expect that to be so simple