My camera sway is working but camera is like jittery?

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#1

so i got the camera sway working but it’s jittery

im using a renderstepped loop so im not sure why its happening

here is the code

local currentTilt = 0
local tiltSpeed = 10

local function lerp(a, b, t)
    return a + (b - a) * t
end


game:GetService("RunService").RenderStepped:Connect(function(deltaTime)
  local targetTilt = sway.Amount
  
  currentTilt = lerp(currentTilt, targetTilt, deltaTime * tiltSpeed)
  
  local currentCFrame = camera.CFrame
  local x, y, z = currentCFrame:ToEulerAnglesYXZ()
  
  local newCFrame = CFrame.new(currentCFrame.Position) * CFrame.fromEulerAnglesYXZ(x, y, z + (currentTilt * deltaTime))
  camera.CFrame = newCFrame
end)
1 Like
#2

Try changing your tiltSpeed to .5 or 100 to see what difference that makes.

#3

Alright I tried this but cranking it up made the effect greater and more jittery and making it lower made the effect barely noticable but stopping the jitter

#4

What does sway point to? Is it a table?

#5

yeah so the sway is actually the amount that the camera has moved the previous frame in another module, i wasnt sure if i needed too add it since it wasnt exactly the part that wasnt working but here it is

local sway = {}
sway.Amount = 0

local camera = workspace.CurrentCamera

local previousCameraRotation = nil
local swayFactor = 1000

game:GetService("RunService").RenderStepped:Connect(function(deltaTime)
   local currentCameraRotation = camera.CFrame
   if previousCameraRotation then
      local difference = previousCameraRotation:Inverse() * currentCameraRotation
      local x,y,z = difference:ToEulerAnglesXYZ()
      local swayValue = -y

      sway.Amount = 1 - (swayValue * swayFactor)
   end

   previousCameraRotation = currentCameraRotation
end)

return sway
#6

Did you try using a Stepped event rather than a RenderStepped event?

#7

No but let me try that right now, but I have a feeling it has something to do with setting the previousCameraRotation to the currentCameraRotation and then in the main CameraTilt im setting the cframe again but im not sure

#8

I’ve had a similar issue before and I found a thread explaining about the order of exection to fix lerp jittering, but sadly I lost it. Changing RenderStepped to Stepped fixed my issue.

#9

Hm interesting, I changed the loops to stepped but that didnt work, I just tried combining both scripts but the jittering is still happening

#10

In this script, deltaTime is acounted for twice, which is probably a mistake.

currentTilt = lerp(currentTilt, targetTilt, deltaTime * tiltSpeed)

local newCFrame = CFrame.new(currentCFrame.Position) * CFrame.fromEulerAnglesYXZ(x, y, z + (currentTilt * deltaTime))

So just get rid of one or the other.
(and mabye both if that dosent solve the issue)

#11

Yeah that jst made the camera spin uncontrollablly, I even made the camera scriptable and create my own custom camera controller and it’s still happening

local UserInputService = game:GetService("UserInputService")
local cameraController = {}

local player = game.Players.LocalPlayer
local character = player.Character
local humanoidrootpart = character.HumanoidRootPart

local camera = workspace.CurrentCamera
local sens = 1
local distance = 8
local maxAngleY = 55

local previousCameraCFrame = nil
local factor = 800
local sway = 0

local currentAngleX, currentAngleY = 0,0

for i = 1,10 do
   camera.CameraType = Enum.CameraType.Scriptable
end

local function Lerp(a,b,t)
   return a + (b - a) * t
end

game:GetService("RunService").RenderStepped:Connect(function(dt)

   local currentCameraCFrame = camera.CFrame

   if previousCameraCFrame then
      local difference = previousCameraCFrame:Inverse() * currentCameraCFrame
      local _,y,_ = difference:ToEulerAnglesXYZ()
      sway = Lerp(sway, 1 - (y * factor), dt * 10)
   end

   if UserInputService:IsMouseButtonPressed(Enum.UserInputType.MouseButton2) then
       
      UserInputService.MouseBehavior = Enum.MouseBehavior.LockCurrentPosition
       local delta = UserInputService:GetMouseDelta()

       currentAngleX = currentAngleX + delta.X * sens * dt
       currentAngleY = math.clamp(currentAngleY + delta.Y * sens * dt,-math.rad(maxAngleY), math.rad(maxAngleY))

   else
       UserInputService.MouseBehavior = Enum.MouseBehavior.Default
   end

   camera.CFrame = CFrame.new(humanoidrootpart.CFrame.Position) * CFrame.fromEulerAnglesYXZ(-currentAngleY, -currentAngleX,sway * dt) * CFrame.new(0,1, distance)
   previousCameraCFrame = currentCameraCFrame
end)


return cameraController

#12

Alright so I FINALLY figured it out, so bascially either tweening the camera’s cframe or using lerp and it works greattt!!!

#13

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