How to stop camera tilt accumulating each frame

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#1

I’ve been dealing with this issue already for like 2 days trying to figure out how to stop the camera tilt accumulating each frame, I am not that good with camera manipulation so if anyone that knows a bit more about camera manipulation, any help is really appreciated.

Here is the camera tilt code I use

if self.torso and self.rootpart then
	local movementVector = currentCamera.CFrame:VectorToObjectSpace(self.rootpart.AssemblyLinearVelocity / 100)
	local sideMovement = math.clamp(movementVector.X/7, -0.25, 0.25)
	sideCameraTilt = lerp(sideCameraTilt, sideMovement, 0.1 * frameDelta)
	local Neck = self.torso:FindFirstChild("Neck")
	local RootJoint = self.rootpart:FindFirstChild("RootJoint")
	local NTX,NTY,NTZ = Neck.Transform:ToEulerAnglesXYZ()
	local RTX,RTY,RTZ = RootJoint.Transform:ToEulerAnglesXYZ()
	cameraTiltAngle = CFrame.Angles(math.rad(NTY/3), 0, math.rad((NTZ-RTZ)) - sideCameraTilt)
end

currentCamera.CFrame = newCameraCFrame * cameraTiltAngle

Here is a video of the problem I am having

I did tried using clamp but since the camera tilt just keeps adding up each frame, it really doesn’t work.

#2

I do not know what the rest of your code looks like, but maybe this would work? I am not too knowledgable on CFrame, try changing the value in the if statement.

if self.torso and self.rootpart then
	local movementVector = currentCamera.CFrame:VectorToObjectSpace(self.rootpart.AssemblyLinearVelocity / 100)
	local sideMovement = math.clamp(movementVector.X/7, -0.25, 0.25)
	sideCameraTilt = lerp(sideCameraTilt, sideMovement, 0.1 * frameDelta)
	local Neck = self.torso:FindFirstChild("Neck")
	local RootJoint = self.rootpart:FindFirstChild("RootJoint")
	local NTX,NTY,NTZ = Neck.Transform:ToEulerAnglesXYZ()
	local RTX,RTY,RTZ = RootJoint.Transform:ToEulerAnglesXYZ()
	
	cameraTiltAngle = CFrame.Angles(math.rad(NTY/3), 0, math.rad((NTZ-RTZ)) - sideCameraTilt)
	
	if cameraTiltAngle.X > 30 then -- maybe change this number??
		cameraTiltAngle = CFrame.Angles(math.rad(30), 0, math.rad((NTZ-RTZ)) - sideCameraTilt)
	end
end

currentCamera.CFrame = newCameraCFrame * cameraTiltAngle
#3

can you provide some more of the script so we can see where the code is running

#4

Oh sure, here. It’s part of the CameraModule that Roblox provides by default.

local newCameraCFrame, newCameraFocus = self.activeCameraController:Update(dt)
if self.activeOcclusionModule then
	newCameraCFrame, newCameraFocus = self.activeOcclusionModule:Update(dt, newCameraCFrame, newCameraFocus)
end
		
-- Here is where the new CFrame and Focus are set for this render frame
local currentCamera = game.Workspace.CurrentCamera :: Camera
local cameraTiltAngle = CFrame.Angles(0,0,0)
		
if self.torso and self.rootpart then
	local movementVector = currentCamera.CFrame:VectorToObjectSpace(self.rootpart.AssemblyLinearVelocity / 100)
	local sideMovement = math.clamp(movementVector.X/7, -0.25, 0.25)
	sideCameraTilt = lerp(sideCameraTilt, sideMovement, 0.1 * frameDelta)
	local Neck = self.torso:FindFirstChild("Neck")
	local RootJoint = self.rootpart:FindFirstChild("RootJoint")
	local NTX,NTY,NTZ = Neck.Transform:ToEulerAnglesXYZ()
	local RTX,RTY,RTZ = RootJoint.Transform:ToEulerAnglesXYZ()
	cameraTiltAngle = CFrame.Angles(math.rad(NTY/3), 0, math.rad((NTZ-RTZ)) - sideCameraTilt)
end
		
currentCamera.CFrame = newCameraCFrame * cameraTiltAngle

Basically newCameraCFrame is the result after doing the whole math to get the positions and rotations of the camera, then I want to apply the tilt, the problem is that on each next frame, the tilt is also included in the newCameraCFrame, so I assume that’s why it accumulates, I know why it happens but I don’t know how to fix it at all.

#5

This doesn’t really do much, I tried and it still happens…

#6

instead of setting cameratiltangle using the absolute angles of the rootjoint and neck transforms, you can find the change in these angles every frame. you can do that like this:

At the top of the script:

local _, lastNTY, lastNTZ = Neck.Transform:ToEulerAnglesXYZ()
local _, _, lastRTZ = RootJoint.Transform:ToEulerAnglesXYZ()

in the update function:

local _, NTY, NTZ = Neck.Transform:ToEulerAnglesXYZ()
local _, _, RTZ = RootJoint.Transform:ToEulerAnglesXYZ()
local dNTY = NTY - lastNTY
local dNTZ = NTZ - lastNTZ
local dRTZ = RTZ - lastRTZ
cameraTiltAngle = CFrame.Angles(dNTY, 0, dNTZ-dRTZ - sideCameraTilt)
lastNTY = NTY
lastNTZ  = NTZ
lastRTZ = RTZ

you might need to do thesame for sidecameratilt

#7

It kind of works, it does fix the accumulating but now the camera tilt is messed up-

#8

Did you do thesame for sidecameratilt? I think the Z axis could also be messed up because i was supposed to find the change in (NTZ-RTZ) every frame, instead of doing dNTZ-dRTZ,

#9

I removed the side tilt value and its still messed up, so I doubt that’s the problem