SubtractAsync creating invisible unions

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#1

(Accidently over wrote this)

Some reason when using Subtract Async it creates invisible unions/parts?

local function GetTouchingParts(part) -- gets touching parts, even not can collide
	local connection = part.Touched:Connect(function() end)
	local results = part:GetTouchingParts()
	connection:Disconnect()
	return results
end


local function CutPart(Pos, Orientation)
	local Invis = game.Workspace.Ignore.Invisible -- move the invisible part in place
	Invis.Position = Pos
	Invis.Orientation = Orientation

	local Touching = GetTouchingParts(game.Workspace.Ignore.Invisible) -- get touching
	for i,v in pairs(Touching) do
		if v.Parent.Name == "Cutable" then -- can be cut (In a folder called "Cutable")

			local Cut1 = Instance.new("Part") -- create first part for Subtract
			Cut1.Anchored = true
			Cut1.CanCollide = false
			Cut1.Transparency = .7
			Cut1.Color = Color3.fromRGB(255,0,0)
			Cut1.Size = Vector3.new(v.Size.X*2, v.Size.Y*2, v.Size.Z*2) -- make it bigger just incase
			Cut1.CFrame = (Invis.CFrame + Invis.CFrame.UpVector*(Cut1.Size/2)) -- move it above the Invisible Part
			Cut1.Parent = game.Workspace.Ignore
			
			local Cut2 = Cut1:Clone() -- create second part for Subtract
			Cut2.Color = Color3.fromRGB(0,255,0)
			Cut2.CFrame = (Invis.CFrame + Invis.CFrame.UpVector*-(Cut2.Size/2)) -- move it below the Invisible Part
			Cut2.Parent = game.Workspace.Ignore

			local union1 = v:SubtractAsync({Cut1}) -- subtract first part
			union1.Anchored = false
			union1.Parent = v.Parent
			union1.Name = "union1"
			
			local union2 = v:SubtractAsync({Cut2}) -- subtract second part
			union2.Anchored = false
			union2.Parent = v.Parent
			union2.Transparency = 0
			union2.Name = "union2"

			v:Destroy() -- delete original
			game:GetService("Debris"):AddItem(Cut1, 1)
			game:GetService("Debris"):AddItem(Cut2, 1)

		end
	end
end

Add to call it using the code:

CutPart(Vector3.new( -11.0081692, 9.77158928, -73.8000031), Vector3.new(0,0,45))

Is there any possibility i am corrupting the unions on creation?

#2

Unions can sometimes have complications on creation. You would need to have a checker for this so you can then redo the union.

This can happen with complex or big unions.

#3

What would the best way to detect if they are invisible do you think? as the “Transparency” parameter is still set to 0

#4

well im not too sure. All the properties would be the same.
I guess you can pcall it and check when it errors.

#5

Weird thing is that it doesn’t actually error, even if its invisible

image
image1248×631 346 KB

Maybe i have to change something in the argument “renderFidelity” will carry on looking

#6

Adding “Default” and “Precise” to the subtract async appeared to fix it, tested with the code below:

for i=0, 360, 1 do
	print("DOING ORIENTATION >> " .. tostring(i))
	CutPart(Vector3.new( -11.0081692, 9.77158928, -73.8000031), Vector3.new(0,0,i))
	wait(2)
	if game.Workspace.Cutable:FindFirstChild("union1")then
		game.Workspace.Cutable:FindFirstChild("union1"):Destroy()
	end
	if game.Workspace.Cutable:FindFirstChild("union2")then
		game.Workspace.Cutable:FindFirstChild("union2"):Destroy()
	end

	local Part = Instance.new("Part")
	Part.Anchored = true
	Part.CanCollide = true
	Part.Size = Vector3.new(10, 10, 10)
	Part.Position = Vector3.new(-11.008, 9.772, -73.8)
	Part.Parent = game.Workspace.Cutable
end

New Subtract:

local union1 = v:SubtractAsync({Cut1}, "Default", "Precise")
1 Like
#7

is the default and precise for the render fidelity?