The Transparency property controls the visibility of a part on a scale of 0 to 1, where 0 is completely visible (opaque), and a value of 1 is completely invisible (not rendered at all).
BasePart/Reflectance can reduce the overall transparency of a brick if set to a value close to 1.
While fully transparent parts are not rendered at all, partially transparent objects have some significant rendering costs. Having many translucent parts may slow down the game’s performance.
When transparent parts overlap, render order can act unpredictable - try to keep semi-transparent parts from overlapping to avoid this.
BasePart/LocalTransparencyModifier is a multiplier to Transparency that is only visible to the local client.
This code sample shows how a part can fade away when touched by a Humanoid then reappear a moment after to create a passable door.
-- Paste into a Script inside a tall part local part = script.Parent local OPEN_TIME = 1 -- Can the door be opened at the moment? local debounce = false local function open() part.CanCollide = false part.Transparency = 0.7 part.BrickColor = BrickColor.new("Black") end local function close() part.CanCollide = true part.Transparency = 0 part.BrickColor = BrickColor.new("Bright blue") end local function onTouch(part) -- If the door was already open, do nothing if debounce then print("D") return end -- Check if touched by a Humanoid local human = part.Parent:FindFirstChildOfClass("Humanoid") if not human then print("not human") return end -- Perform the door opening sequence debounce = true open() wait(OPEN_TIME) close() debounce = false end part.Touched:Connect(onTouch) close()
This code sample gives the local client X-ray vision using LocalTransparencyModifier. It allows the player to see through all parts in the Workspace, which are found using recursion.
-- X-ray vision: see through everything! local function makeXRayPart(part) -- LocalTransparencyModifier will make parts see-through but only for the local -- client, and it won't replicate to the server part.LocalTransparencyModifier = .5 end -- This function uses recursion to search for parts in the game local function recurseForParts(object) -- Did we find a part that isn't if object:IsA("BasePart") then makeXRayPart(object) end -- Stop if this object has a Humanoid - we don't want to see-through players! if object:FindFirstChildOfClass("Humanoid") then return end -- Check the object's children for more parts for _, child in pairs(object:GetChildren()) do recurseForParts(child) end end recurseForParts(workspace)