How To Spray Random Raycasts In A Cone Shape

[Cryptic_Here (cryptic)]

You can write your topic however you want, but you need to answer these questions:

1. What do you want to achieve? Keep it simple and clear!
   Raycast a cone shape which can have a variable width
2. What is the issue? Include screenshots / videos if possible!
   I am unable to do so with my current understanding of raycasts

--angle can vary anywhere between 5 and 50
local RayDirection = Vector3.new(Random.new():NextNumber(-angle, angle), Random.new():NextNumber(-angle, angle), Random.new():NextNumber(-angle, angle))

Please do not ask people to write entire scripts or design entire systems for you. If you can’t answer the three questions above, you should probably pick a different category.

[nicemike40]

Weird, I just answered this question:

How do I change a parts velocity in the direction that the character is facing?

You’re saying “radius”, but I think you want a cone. Radius isn’t quite specific enough in this context. i.e. if your LookVector is the black line in this image, you want to pick some velocity in the red cone: [image] I borrowed that image from this stackoverflow answer. Here’s the top answer on that question translated into lua: -- axis: center line of cone -- angle: angle from center to edge of cone -- returns: a random unit vector inside the cone, evenly distributed along the partial sur…

[Cryptic_Here (cryptic)]

Im having issues implementing this, no rays seem to show up or hit anything at all,

[nicemike40]

Could you share the code you’re using to call it?

[Cryptic_Here (cryptic)]

				local RayPosition = caster
				local beam = Tool.Pistol.Part.Beam
				local final = script.PointCount
				local beamea = Tool.Pistol.Part.BeamEndAttachment
				local angle = Player.PlayerGui.ScreenGui.Frame.angle.angle.Value
				local RayDirection = RandomCone(caster.CFrame.LookVector, math.rad(45))
				warn("RayDirection Set")
				local Params = RaycastParams.new()
				Params.CollisionGroup = "Default"
				Params.FilterType = Enum.RaycastFilterType.Blacklist
				Params.FilterDescendantsInstances = {RayPosition}

				local Result = workspace:Raycast(RayPosition.Position, RayDirection, Params)

(45 for testing)

[nicemike40]

RandomCone returns a vector of length 1. You have to multiply it by the length you want your ray to actually go.

[Cryptic_Here (cryptic)]

Ah, thank you. I didnt realize that

[Val_RBLX (Boo_Yah)]

how would i make this do a spray of raycasts in the shape of a cone? im trying to achieve something like a field of view of a part with rays

[nicemike40]

You could call the random vector function over and over, but you may find this method more applicable to your use case:

How can I raycast in every direction from a position?

Really good attempt, there’s just a few tweaks to some negatives and things you needed. I also cleaned up the if statement stuff but your method also would work. local function EvenlyDistributeVectorsInCone(n, angle, axis) if n == 0 then return {} end if n == 1 then return { axis } end local cosAngle = math.cos(angle) local vecs = table.create(n) local phi = math.pi * (3 - math.sqrt(5)) for i = 0, n - 1 do local a = i / (n - 1) local z = -1 + (1-cosAngle)*a local radius = math.sqrt…

That will distribute however many vectors you want evenly within a 3D cone.