Isometric Roof-hiding - Howto?

[Tiny_bigninja (funny)]

Hey all!
I’m making a game functionally similar to “Project Zomboid” - An isometric zombie survival game, I’ve got the isometric camera figured out but i came across an issue - Roofs.

I’ve thought of ideas to hide to roof (i.e. raycasting) but this 1. Wouldn’t hide everything needed 2. Would have significant performance implications

Thanks!

[2112Jay]

--LocalScript in StarterPlayerScripts
local player = game.Players.LocalPlayer
local camera = workspace.CurrentCamera
local character = player.Character or player.CharacterAdded:Wait()
camera.CameraType = Enum.CameraType.Custom
camera.CameraSubject = character:WaitForChild("Humanoid")

local RunService = game:GetService("RunService")
local CollectionService = game:GetService("CollectionService")
local RoofTag = "Roof"

RunService.RenderStepped:Connect(function()
	if character and character:FindFirstChild("HumanoidRootPart") then
		local root = character.HumanoidRootPart
		for _, part in pairs(CollectionService:GetTagged(RoofTag)) do
			if (camera.CFrame.Position - part.Position).Magnitude < 60 then
				part.LocalTransparencyModifier = .8
			else
				part.LocalTransparencyModifier = 0
			end
		end
	end
end)

Add to the parts you wish to go transparent-ish
Mess around with this number .Magnitude < 60

A bit more refined

LocalScript

--LocalScript in StarterPlayerScripts
local player = game.Players.LocalPlayer
local camera = workspace.CurrentCamera
local character = player.Character or player.CharacterAdded:Wait()
camera.CameraType = Enum.CameraType.Custom
camera.CameraSubject = character:WaitForChild("Humanoid")

local RunService = game:GetService("RunService")
local CollectionService = game:GetService("CollectionService")
local RoofTag = "Roof"

local hiddenRoofs = {}

RunService.RenderStepped:Connect(function()
	if not (character and character:FindFirstChild("HumanoidRootPart")) then return end
	local root = character.HumanoidRootPart
	for _, part in pairs(CollectionService:GetTagged(RoofTag)) do
		local distance = (camera.CFrame.Position - part.Position).Magnitude
		local shouldHide = distance < 60
		if shouldHide and not hiddenRoofs[part] then
			part.LocalTransparencyModifier = 0.8
			hiddenRoofs[part] = true
		elseif not shouldHide and hiddenRoofs[part] then
			part.LocalTransparencyModifier = 0
			hiddenRoofs[part] = nil
		end
	end
end)

I really don’t like doing this kind of loop:
RunService.RenderStepped:Connect(function()
Just testing here, it maybe the best choice here.

[Tiny_bigninja (funny)]

Thank you so much! I completely forgot i could use collectionservice for this
'Preciated

[2112Jay]

I was testing that and it really does look just like them isometric games doing this, woot.