Lerp jittering glitch?

Help and Feedback Scripting Support
#1

I want to know how to make the cframe not stutter. Basically whenever I start moving, the part starts stuttering behind me, I believe its because the lerps “goal” is always changing whenever im moving causing it to stutter.

local Player = game.Players.LocalPlayer
local Character = Player.Character or Player.CharacterAdded:Wait()

local Rs = game:GetService("RunService")

local Test = workspace:WaitForChild("TestPart")

function Follow(Dt)
	local st = (Dt * 60)
	Test.CFrame = Test.CFrame:Lerp(Character.PrimaryPart.CFrame, math.clamp(0.1 * st, 0, 1))
end

Rs:BindToRenderStep("Test", Enum.RenderPriority.Last.Value, Follow)
#2

why use lerp over an align position?

#3

This is a testing script, doing so in the main one could cause it to lag, I’m not entirely sure tho

#4

using an align orientation causes lag?

#5

Could, as I said. It is also not the best way to do what im looking for since the objects im lerping are anchored

#6

For smooth animations like that you either need to do them on the client or use something that gets smoothed (like a Motor6, AlignPosition, etc).

Otherwise, the delay between the server and the client results in choppy movement.

If you’re really set on tweening from the server though, I believe this module by SteadyOn lets you do it without the choppiness:

#7

Ill try this out and lyk if it works, Thank you for the help!!!

1 Like
#8

Enum.RenderPriority.Last is literally the last thing of course it’ll be laggy, change that to something higher like camera or so.

#9

I believe the RenderPriority changes the order of when the function is run each frame (for example, Camera + 1 is after the camera updates and Camera - 1 is before the camera updates). I think worst case using a later priority could only cause it to be one frame behind, though I don’t think it would be choppy like in the video.

#10

Even when using camera or character or any renderpriority it still stutters

#11

Reason why you’re getting CFrame stutters is because your DT is not constant in your Lerp factor.
math.clamp(0.1 * (Dt * 60))
Basically the Speed is unpredictable. Which starts to stutter a lot. I recommend using Align Position and Orientation.

BUT In case that is not the solution u wanna hear. Here’s the smoothest i could make it.

local Player = game.Players.LocalPlayer
local Character = Player.Character or Player.CharacterAdded:Wait()

local Rs = game:GetService("RunService")

local Test = Instance.new("Part", workspace)
Test.Anchored = true
Test.CanCollide = false

function Follow(Dt)
	Test.CFrame = Test.CFrame:Lerp(Character.PrimaryPart.CFrame, 0.1)
end

Rs.Heartbeat:Connect(Follow)