Viewport Camera Rotating Problem

Help and Feedback Scripting Support
#1

What’s the problem:
I don’t work with cameras or viewports, so this is sorta new to me.
I’m just testing, but the problem I have is that it’s rotating around the object in a weird way.
I want the object to be in the very middle of the viewport and for the camera to rotate around it

Example of how the problem looks

Local Script

local VPF = script.Parent.ViewportFrame
local Object = game:GetService("ReplicatedStorage").Assets.Weapons.Guns.GhostBeater

local R = 0

local function VPFTesting()
	local VPFObj = Object:Clone()
	VPFObj.Parent = VPF
	
	local cam = Instance.new("Camera")
	cam.Parent = VPF
	VPF.CurrentCamera = cam
	
	game:GetService("RunService").Heartbeat:Connect(function()
		cam.CFrame = CFrame.Angles(0,math.rad(R),0) * CFrame.new(Object.Handle.Position + (Object.Handle.CFrame.LookVector*5) + Vector3.new(5,0,0), Object.Handle.Position)
		R = R + 1
	end)
	
end
VPFTesting()

Disclaimer
I got to this point by just following Youtube tutorials, reading Devforum, and going on Developer. I do undertsand what I wrote, but I’m not confident in the fact that my code is perfect. I have looked for solutions already and try to apply it to my own code, but none of them have worked for me.

#2

why are you rotating the camera? why not the object?

#3

Sorry for the late reply, it was because I wanted to be efficient. I’ve read that rotating the object will take more memory and work for the script.

#4

i might be wrong, but it seems like a really bad idea. rotating an object is easier and probably takes less memory

1 Like
#5

Rotating a camera is more performant according to this developer article.

Moving a viewport’s physical children is less performant than keeping them static. If you need to update the view, it’s better to move the camera than move the parts/models.

For @CallCopsIKillTime checkout the placefile

The code should look like this:

--CF is the model position, you can replace it with part.Position or handle.Position.
	local cf, size = model:GetBoundingBox()
	local distance = vpfModel:GetFitDistance(cf.Position) --Calculated by module, or you could set any number

	game:GetService("RunService").RenderStepped:Connect(function(dt)
		theta = theta + math.rad(20 * dt)
		orientation = CFrame.fromEulerAnglesYXZ(math.rad(-20), theta, 0)
		camera.CFrame = CFrame.new(cf.Position) * orientation * CFrame.new(0, 0, distance)
	end)
3 Likes
#6

Thank you for clearing things up, this should be very useful! Also thank you @jaidwe, for the advice too!