Scaling a gui element based on the distance from the camera to the world point

[SkyLord_103 (Thy_Rizsler)]

Hello!

I am trying to have a gui scale based on the distance from the camera’s position to a world point(a vector3)
Basically the closer your camera is to the point the larger the gui element is and farther the smaller it is

So far I have positioning of the gui down but this is the only hold up.

[Brylan_Leske (Brylan)]

get the magnitude (distance) from the player’s head, rootpart, etc and the point in your world.

If your script is a localscript and inside the gui:

local frameToScale = script.Parent.Frame
local worldPoint = game.Workspace.guiPoint --can be an object, vector3, etc. Just make sure that you convert to a vector3 at some point
local maxDistance = 50 --The distance at which the gui stops getting bigger
local maxSize = 0.9 --The maximum size of the frame in either direction (scale)

--get the player and it's character
local Players = game:GetService("Players")
local player = Players.LocalPlayer
local character = player.Character

--make sure character exists and waits till it does
if not character or not character.Parent then
	character = player.CharacterAdded:wait()
end



--you can use heartbeat or something here, i'm writing pseudo-code and cant remember how to do that right now. in real code, while true do should **NOT** be used

while true do
	--get the distance between the part and humanoidRootPart
	local magnitude = math.abs((character:WaitForChild("HumanoidRootPart").Position - worldPoint.Position).Magnitude)

	--clamp magnitude to the maxDistance
	magnitude = math.clamp(magnitude,0,maxDistance)

	--translate the distance into a scale
	local scale = math.clamp(1-(magnitude/maxDistance),0,maxSize)

	frameToScale.Size = UDim2.new(scale,0,scale,0)

	wait(0.01)
end

You said you already had positioning down, so you could probably tie this into it.

It seems like you’re trying to make a custom billboard GUI.

[SkyLord_103 (Thy_Rizsler)]

Thanks!

Essential yes.

It seems like you’re trying to make a custom billboard GUI.

If your wondering what this is for, I’m making a personal attachment editor plugin.