Re-Creating a Portal Effect,

Help and Feedback Scripting Support
#195

Thanks, I can edit it keeping this in mind.

#196

What if you use some really complicated equation to figure out where the lighting is coming from and mirror that to an invisible part which creates the same shadow

2 Likes
#197

I’ve been working on a way to create multiple portals with that system. I think you can understand how to make multiple ones by comparing this one I made with the one already provided in the demo. Basically, it just links portals like “Portal A to B,” “Portal C to D,” and you can keep going and make more. I’ve even developed a system that only shows the nearest pair of portals, but for now, it still needs some fixes, so I won’t post that.

Remember to make Portal C and D inside the “Portals” model for it to work.

local Players = game:GetService("Players")
local Lighting = game:GetService("Lighting")
local RunService = game:GetService("RunService")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Portal = require(ReplicatedStorage.Portal)

-- Define all four portals
local portalA = Portal.FromPart(workspace.World, workspace.Portals.PortalA, Enum.NormalId.Front)
local portalB = Portal.FromPart(workspace.World, workspace.Portals.PortalB, Enum.NormalId.Front)
local portalC = Portal.FromPart(workspace.World, workspace.Portals.PortalC, Enum.NormalId.Front)
local portalD = Portal.FromPart(workspace.World, workspace.Portals.PortalD, Enum.NormalId.Front)

-- Add skyboxes for all portals
portalA:AddSkybox(portalB:GetPart().Sky)
portalB:AddSkybox(portalA:GetPart().Sky)
portalC:AddSkybox(portalD:GetPart().Sky)
portalD:AddSkybox(portalC:GetPart().Sky)

-- Link portals in pairs (A-B and C-D)
portalA:Link(portalB)
portalB:Link(portalA)
portalC:Link(portalD)
portalD:Link(portalC)

-- World rendering and camera pass-through
local characterPortalSide = portalA
local prevPortalSide = characterPortalSide

local currentSkybox = characterPortalSide:GetPart().Sky:Clone()
currentSkybox.Parent = Lighting

local prevCamCF = workspace.CurrentCamera.CFrame
local prevCamFocus = workspace.CurrentCamera.Focus

RunService:BindToRenderStep("BeforeInput", Enum.RenderPriority.Input.Value - 1, function()
	workspace.CurrentCamera.CFrame = prevCamCF
	workspace.CurrentCamera.Focus = prevCamFocus
end)

RunService.RenderStepped:Connect(function(dt)
	local successTeleA = portalA:AttemptTeleport()
	local successTeleB = portalB:AttemptTeleport()
	local successTeleC = portalC:AttemptTeleport()
	local successTeleD = portalD:AttemptTeleport()
	
	if characterPortalSide == portalA and successTeleA then
		characterPortalSide = portalB
	elseif characterPortalSide == portalB and successTeleB then
		characterPortalSide = portalA
	elseif characterPortalSide == portalC and successTeleC then
		characterPortalSide = portalD
	elseif characterPortalSide == portalD and successTeleD then
		characterPortalSide = portalC
	end
	
	prevCamCF = workspace.CurrentCamera.CFrame
	prevCamFocus = workspace.CurrentCamera.Focus
	
	local cameraPortalSide = characterPortalSide
	
	for _, portal in pairs({portalA, portalB, portalC, portalD}) do
		local surfaceCF, surfaceSize = portal:GetSurface()
		local lp = surfaceCF:PointToObjectSpace(prevCamCF.Position)
		
		if lp.Z < 0.15 then
			continue
		end
		
		local success, cframe, focus = portal:GetCameraPassThrough()

		if success then	
			workspace.CurrentCamera.CFrame = cframe
			workspace.CurrentCamera.Focus = focus
			cameraPortalSide = portal:GetLinked()
			break
		end
	end
	
	-- Step characters and render for all portals
	portalA:StepCharacters()
	portalB:StepCharacters()
	portalC:StepCharacters()
	portalD:StepCharacters()
	
	portalA:Render()
	portalB:Render()
	portalC:Render()
	portalD:Render()
	
	if prevPortalSide ~= cameraPortalSide then
		currentSkybox:Destroy()
		currentSkybox = cameraPortalSide:GetPart().Sky:Clone()
		currentSkybox.Parent = Lighting
	end
	
	prevPortalSide = cameraPortalSide
end)

-- Physics step for all portals
local wasTouchingA = false
local wasTouchingB = false
local wasTouchingC = false
local wasTouchingD = false

RunService.Heartbeat:Connect(function()
	wasTouchingA = portalA:PhysicsStep(wasTouchingA)
	wasTouchingB = portalB:PhysicsStep(wasTouchingB)
	wasTouchingC = portalC:PhysicsStep(wasTouchingC)
	wasTouchingD = portalD:PhysicsStep(wasTouchingD)
	
	if not wasTouchingA and not wasTouchingB and not wasTouchingC and not wasTouchingD then
		portalA:SetTouching(false)
		portalB:SetTouching(false)
		portalC:SetTouching(false)
		portalD:SetTouching(false)
	else
		portalA:SetTouching(true)
		portalB:SetTouching(true)
		portalC:SetTouching(true)
		portalD:SetTouching(true)
	end
end)

-- Character rendering for all portals
local function onCharacterAdded(player, character)
	local cleanupA = portalA:WatchCharacter(player.Character)
	local cleanupB = portalB:WatchCharacter(player.Character)
	local cleanupC = portalC:WatchCharacter(player.Character)
	local cleanupD = portalD:WatchCharacter(player.Character)
	player.CharacterRemoving:Wait()
	cleanupA:Sweep()
	cleanupB:Sweep()
	cleanupC:Sweep()
	cleanupD:Sweep()
end

for _, player in pairs(Players:GetPlayers()) do
	if player.Character then
		task.spawn(onCharacterAdded, player, player.Character)
	end
	
	player.CharacterAdded:Connect(function(character)
		onCharacterAdded(player, character)
	end)
end

Players.PlayerAdded:Connect(function(player)
	player.CharacterAdded:Connect(function(character)
		onCharacterAdded(player, character)
	end)
end)

I’d suggest to not make to many portals close to eachother :smile:

1 Like