Is there a way to get the position of points in a beam?

[BlonixOne (BO1)]

Is there a way to get info of all the points/segments of a beam? Like, for example:

local segments = Beam:GetSegments()

for i, seg in segments do
   print(seg.Position)
end

Or something similar.

Any help is highly appreciated!

[treebee63]

You have to write your own code for it.

Roblox beams use the Cubic Bezier Curve.

Beams | Documentation - Roblox Creator Hub

My sample code for the demo. I use my own debug module system to draw the dots.

local DEBUG = require(game.ReplicatedStorage.GameLib.DebugModule)

local beam = script.Parent.Beam

local function beamPos(beam: Beam, t: number)
	-- get the bezier position of the beam given the percentage t
	local p0 = beam.Attachment0.WorldCFrame
	local p1 = p0 * CFrame.new(1 * beam.CurveSize0,0,0)
	local p3 = beam.Attachment1.WorldCFrame
	local p2 = p3 * CFrame.new(-1 * beam.CurveSize1,0,0)

	p0 = p0.Position
	p1 = p1.Position
	p2 = p2.Position
	p3 = p3.Position
	
	return (1 - t)^3 * p0 + 3 * (1 - t)^2 * t * p1 + 3 * (1 - t) * t^2 * p2 + t^3 * p3
end

while task.wait(0.1) do
	DEBUG.setLifeTime(0.1)
	for i = 1,beam.Segments do-- draws out point of the segment
		DEBUG.drawVector3(beamPos(beam, i/beam.Segments)) 
	end
end

[BlonixOne (BO1)]

Exactly what I needed. You’re a life saver. Thanks!