Help with viewmodel arm spinning

Help and Feedback Scripting Support
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#1

I am working on a viewmodel system, and I want to rotate the arms in the same script where I set the viewmodels CFrame to the camera’s each frame. This means I am updating the viewmodel’s rotation every frame, and with the conventional means of rotation by multiplying a CFrame with CFrame.Angles, it makes the arm start spinning since its rotation is increasing each frame.

Code:

local Players = game.Players
local RunService = game:GetService("RunService")

local plr = Players.LocalPlayer
local char = plr.Character
local cam = workspace.CurrentCamera

local gun = script.Parent

local viewmodel = plr.PlayerGui.Viewmodel
local gunmodel: Model = plr.PlayerGui:FindFirstChild(gun.Name)

local head: Part = char:WaitForChild("Head")


RunService.Heartbeat:Connect(function(dt)	
	if Players:GetPlayerFromCharacter(gun.Parent) then
		viewmodel.Parent = cam
		viewmodel:PivotTo(cam.CFrame)
		
		gunmodel.Parent = cam
		gunmodel:PivotTo(viewmodel.RightArm.Hand.WorldCFrame)
			
		local rarm = viewmodel.RightArm:GetPivot() * CFrame.Angles(math.rad(0), math.rad(5), math.rad(0))
		--// ^ Issue ^								^ Arm is being rotated by 5 degrees each frame ^

		viewmodel.RightArm:PivotTo(rarm)
	else
		viewmodel.Parent = plr.PlayerGui
		gunmodel.Parent = plr.PlayerGui
	end
end)

The solution I came up with would be to set the CFrame’s rotation each frame, not multiply it, but the issue is I don’t know how to do that.

Thanks.

#2

Essentially you’re redefining the pivot every single time you rotate it. Try defining rarm above the heartbeat function, and then multiply the cframe while setting it.

#3

I’m trying that and the arm stays in one spot while the rest of the viewmodel moves with the camera.