How do you script ADS w/ a fully-rigged viewmodel

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1

I am making an FPS game, and are testing the grounds with viewmodels. What I currently have, is an entire rig of a player, minus the legs, who’s PrimaryPartCFrame is set to the Camera’s CFrame on every RenderStepped. I followed EgoMoose’s tutorial to a t, got a working viewmodel, didn’t know where to go from there, nor did I understand a thing I read and decided to try something else that I would have an easier time with. I have a BasePart (transparent red block in the screenshot), which is welded to the gun. The gun is connected to the player’s hand via a Motor6D, and the viewmodel connected to the Camera via the RenderStepped function I mentioned at the start. How would I go about tweening or lerping the “Aim” part to be set to the Camera’s CFrame?

viewmodel
viewmodel1001×360 325 KB

2

I don’t understand. Do you want to lerp the camera to the red part, like you’re aiming? Or do you want to lerp the red part to the camera, like that hands are repositioning?

3

Honestly, either or. I don’t know how to accomplish either, and they would both achieve the same effect.

5

There’s many ways to do this. A simple way (obviously not the best) would be to use the Heartbeat event and toggle the camera to focus and interpolate to the AimPart. The only reason you’d use a Heartbeat is to update the camera’s cframe with the most recent cframe. If the camera moves, the cframe changes too.

I tried to make this as simple as possible so that it’s easier to understand.

local userInputService = game:GetService("UserInputService")
local runService = game:GetService("RunService")
local Player = game.Players.LocalPlayer
local Character = Player.Character
local Camera = game.Workspace.CurrentCamera
local aimPart = game.Workspace:WaitForChild("AimPart")


function ignore()
	
	-- Weld AimPart to RightHand
	local weld = Instance.new("Weld")
	weld.Parent = aimPart
	weld.Part0 = Character:WaitForChild("RightHand")
	weld.Part1 = aimPart
end

ignore() -- Ignore if "AimPart" is already welded to something

function aim(part)
	Camera.CameraType = Enum.CameraType.Scriptable
	Camera.CFrame = part.CFrame -- if you want this to be smooth, :Interpolate would work but you'd have to set the camera subject & focus (https://developer.roblox.com/en-us/api-reference/function/Camera/Interpolate)
end

runService.Heartbeat:Connect(function(step)
	if userInputService:IsKeyDown(Enum.KeyCode.Q) then
		return aim(aimPart) -- Contents of this could go directly here, but for the sake of learning, I separated it.
	end

        -- Resets the Player's Camera to default
	Camera.CameraType = Enum.CameraType.Custom
	Camera.CameraSubject = Character:FindFirstChild("Humanoid")
end)