Character Jittering

[GuinPeng (Matcha)]

game:GetService("RunService").RenderStepped:Connect(function()
	Basics.CharacterFacing()
	Basics.IsometricCamera()
end)

function Basics.IsometricCamera()
	local Position = Vector3.new(-25 + HumanoidRootPart.Position.X, Hypotenous(25 + 3), -25 + HumanoidRootPart.Position.Z)
	SmoothCFrame(Camera, CFrame.new(Position, Position+Vector3.new(1, -Hypotenous(1), 1)))
end

function SmoothCFrame(Instance, NewCFrame)
	TS:Create(Instance, TweenInfo.new(0.5, Enum.EasingStyle.Exponential, Enum.EasingDirection.Out), {CFrame = NewCFrame}):Play()
end

I’ve been trying to find a similar problem in the forum — found a couple about this topic; all of them said to use heartbeat etc etc, but it’s just not working for me.
Ruled out that the cause is because of the Isometric camera, not the character facing mouse

[Baltic256 (Baltic)]

A video of your issue in action and a more detailed problem explanation would be great

[GuinPeng (Matcha)]

I’ve been trying, it just keeps saying “Uploading” even till now :((

[DevDaniel_House (Daniel)]

Hi, i just a posted a potential solution to a simular issue, this problem happened to me recently with a viewmodel, but setting the updating frame to PreRender fixed it for me, since it runs before the frame rendering. Heartbeat and RenderStepped run differently than PreRender. Altough RenderStepped runs prior to the frame rendering (similarly to PreRender), it is now deprecated.

Here is the link to my other post if you want further explanation as to why this works:

Camera jitter even when using CFrame:Lerp

Hi, i have encountered a similar issue not too long ago, except with a viewmodel. The fix for me was similar to what @SubtotalAnt8185 said in his post: Changing the update frame can cause a difference with systems like these, and both RenderStepped and Stepped run in different times than we want (before rendering the frame), but what you want is changing it to PreRender, which will make all the calculations happen before rendering the following frame. RenderStepped is actually the same as Pre…

[GuinPeng (Matcha)]

Sadly it’s still jittering

[DevDaniel_House (Daniel)]

Hmm, maybe its because you are using tween service inside the loop, i personally never use them because im pretty sure they lower the performance a lot, but that could be false. Instead i always use CFrame:Lerp, which is basically the same thing but its a single calculation every frame, so it doesnt overlap with other tweens.

Try changing the SmoothCFrame function to use it:

function SmoothCFrame(Instance, NewCFrame)
	Instance.CFrame = Instance.CFrame:Lerp(NewCFrame, 0.1)
end

(This particular function might not work, i didnt test it but consider trying to use this solution its a lot cleaner)

CFrame | Documentation - Roblox Creator Hub

[GuinPeng (Matcha)]

The character stops jittering when the lerp time is > 0.9, but I guess this is the only possible solution due to roblox’ limitations