How do I make raycasts ignore "CanQuery"?

[Tetsukin]

I’m using fast cast for arrows, but it keeps getting stuck on zones that I made with zoneplus.
Zoneplus requires CanQuery to be turned on so that it can check if people are in the zone.
But the fastcast raycast arrows keep getting stuck on the Zone part.
The Zone part has CanCollide turned off, but CanQuery turned on so it can find players.
I turned “RespectCanCollide” on for the Arrow raycast but it still hits the zone part even though the zone part’s CanCollide is turned off.

As you can see in this image, the zone part’s cancollide is turned off, but the canquery is turned on so it can find players, but players can go into the zone.
Arrow raycasts via fastcast get stuck on it however.

In the RaycastParams below, I turned RespectCanCollide to true.
But it still gets stuck on the zone part despite it being non-collidable.
Is there a way to make the raycast ignore canquery entirely?
So that the zone can find players, but arrow raycasts can still go through.

local caster = FastCast.new()

local castParams = RaycastParams.new()
castParams.CollisionGroup = "Arrows"
castParams.FilterDescendantsInstances = {c}
castParams.FilterType = Enum.RaycastFilterType.Exclude
castParams.IgnoreWater = true
castParams.RespectCanCollide = true

local bulletCache = PartCache.new(bulletTemplate, 10, bulletsFolder)

local castBehavior = FastCast.newBehavior()
castBehavior.RaycastParams = castParams
castBehavior.Acceleration = Vector3.new(0, -75, 0)
castBehavior.AutoIgnoreContainer = false
castBehavior.CosmeticBulletContainer = bulletsFolder
castBehavior.CosmeticBulletProvider = bulletCache

I tried changing the collisiongroup of the zone to ignore arrows, but I got this error from ZonePlus instead: Zone parts must belong to the ‘Default’ (0) CollisionGroup!

[umamidayo (dayo)]

Have you tried adding the zones to the filter descendants

[Tetsukin]

Thanks for the idea, I tried that just now by making a table, but the arrows still got stuck for some reason

local boatzones = {}

for _, v in pairs(workspace.NPC:GetChildren()) do
	if v:FindFirstChild("ShipHealth") ~= nil then
		if v.ShipHealth.Value > 0 and v:FindFirstChild("Zone") ~= nil then
			table.insert(boatzones, v.Zone)
		end
	end
end

workspace.NPC.ChildAdded:Connect(function(v)
	if v:FindFirstChild("ShipHealth") ~= nil then
		if v.ShipHealth.Value > 0 and v:FindFirstChild("Zone") ~= nil then
			table.insert(boatzones, v.Zone)
		end
	end
end)

workspace.NPC.ChildRemoved:Connect(function(v)
	if v:FindFirstChild("ShipHealth") ~= nil then
		if table.find(boatzones, v.Zone) then
			table.remove(boatzones, table.find(boatzones, v.Zone))
		end
	end
end)

local caster = FastCast.new()

local castParams = RaycastParams.new()
castParams.CollisionGroup = "Arrows"
castParams.FilterDescendantsInstances = {c, boatzones}
castParams.FilterType = Enum.RaycastFilterType.Exclude
castParams.IgnoreWater = true
castParams.RespectCanCollide = true

local bulletCache = PartCache.new(bulletTemplate, 10, bulletsFolder)

local castBehavior = FastCast.newBehavior()
castBehavior.RaycastParams = castParams
castBehavior.Acceleration = Vector3.new(0, -75, 0)
castBehavior.AutoIgnoreContainer = false
castBehavior.CosmeticBulletContainer = bulletsFolder
castBehavior.CosmeticBulletProvider = bulletCache

[eclipse6273094 (izzy)]

collision groups

[i_dunno8p (Katie)]

Can you try printing the part they collide with? It could be that they are colliding with something else.

Also, try casting a ray manually using workspace:RayCast. Could be an issue with the fast cast module itself.

[umamidayo (dayo)]

When you write your event signal listeners, it will insert the object into the table. Since lua interprets line by line and internally your raycast filtered descendants are stored into memory as is, there’s a possible edge case where your table is not including added instances. You need to update the filter when a new instance is inserted into the table, whichever method works for you.

[Tetsukin]

It worked, thanks!
I had to go and update the table to filter descendants every time the arrow fires.

local function fire(player, mousePosition)
	
	if player.Character.ToolEquipped.Value ~= script.Parent then
		return
	end
	
	Player = player
	firePoint = player.Character.RightHand.FirePoint
	
	if tool.Parent:IsA("Backpack") then return end
	
	if ammoLeft > 0 and not reloading and Arrows.Value > 0 then
		
		script.Parent.Main.Fire:Play()
		
		castParams.FilterDescendantsInstances = {c, boatzones}
		castBehavior.RaycastParams = castParams
		
		local origin = firePoint.WorldPosition
		local direction = (mousePosition - origin).Unit
		
		caster:Fire(origin, direction, 300, castBehavior)
		Arrows.Value = Arrows.Value - 1
		ammoLeft -= 1
	else
		reload()
	end
end

[umamidayo (dayo)]

That works fine, if you would like to further improve it, you can determine where it is necessary to update the filter. When you call the fire function, does it always need to update the filter, or does it only need to when a new instance is added into the workspace? That is your call to make, but I suggest reducing script usage by keeping it as minimal as possible.