GetExtentsSize for Parts

getextentssize.luau

-- Original from https://devforum.roblox.com/t/getextentssize-of-one-part-without-model/404945/7
-- 300% faster than original

--!native
--!optimize 2
--!strict

local function GetPartExtentsSize(Part: BasePart): Vector3
	local Size: Vector3 = Part.Size
	local SX: number, SY: number, SZ: number = Size.X, Size.Y, Size.Z

	local R00: number, R01: number, R02: number,
		R10: number, R11: number, R12: number,
		R20: number, R21: number, R22: number = select(4, Part.CFrame:GetComponents())

	local R0 = Vector3.new(math.abs(R00), math.abs(R10), math.abs(R20)) * SX
	local R1 = Vector3.new(math.abs(R01), math.abs(R11), math.abs(R21)) * SY
	local R2 = Vector3.new(math.abs(R02), math.abs(R12), math.abs(R22)) * SZ

	return R0 + R1 + R2
end

-- Example
local Part = workspace.Baseplate
local Size: Vector3 = GetPartExtentsSize(Part)

Where are the unit tests daily?