Raycasting Issue(Not Accurate)

Help and Feedback Scripting Support
1

Hi everyone! I am having a little bit of difficulty with a raycast I set up. It is not very accurate as I show in the video. Any help?

local muzzle =  Camera.Template.Handle.Muzzle
local ray = Ray.new(muzzle.CFrame.p, (Mouse.Hit.p-muzzle.CFrame.p).unit * 999)
local part, pos = game.Workspace:FindPartOnRayWithIgnoreList(ray,{Camera,player.Character,game.Workspace.Ignore})
local damage = 0
				
if part then
	if part.Parent:FindFirstChild("Humanoid") then
		if part.Name == "Head" then
			damage = HeadShot
		else
			damage = BodyShot				
		end
	end
end
1 Like
2

You should cast the ray directly from the camera forward instead of the muzzle because the muzzle is pointed slightly to the top left which will make it fire off-center.

local camera = workspace.CurrentCamera

local raycastParams = RaycastParams.new()
raycastParams.FilterDescendantsInstances = {character}
raycastParams.FilterType = Enum.RaycastFilterType.Blacklist
local origin = camera.CFrame.Position
local direction = camera.CFrame.LookVector * 256
local raycastResult = workspace:Raycast(origin, direction, raycastParams)

if raycastResult then
	local humanoid = raycastResult.Instance.Parent:FindFirstChild("Humanoid")
	
	if humanoid then
		damage = raycastResult.Instance.Name == "Head" and HeadShot or BodyShot
	end
end
2 Likes
3

How would I know when it hits something like a part?

4

If raycastResult is nil, then it did not hit a part. If you want to check if the part is a character, then just do what you did with raycastResult.Instance.Parent:FindFirstChild("Humanoid")

Also I updated the script a little if you want to look it over again.

5

Ok thank you! And finally how do I get the position of where the raycast hit?

6

Use raycastResult.Position. You can see what a raycastResult returns here: RaycastResult | Roblox Creator Documentation

7

I just wanted to point out, workspace:FindPartOnRayWithIgnoreList() is deprecated. Use WorldRoot:Raycast() instead.

8

I forgot but don’t use the Camera’s forward direction. Use the mouse direction instead because the script won’t work if you were in 3rd person (zoomed out).

local Players = game:GetService("Players")

local camera = workspace.CurrentCamera
local player = Players.LocalPlayer
local mouse = player:GetMouse()

local raycastParams = RaycastParams.new()
raycastParams.FilterDescendantsInstances = {character}
raycastParams.FilterType = Enum.RaycastFilterType.Blacklist
local origin = camera.CFrame.Position
local direction = (mouse.CFrame.Position - origin).Unit * 256
local raycastResult = workspace:Raycast(origin, direction, raycastParams)

if raycastResult then
	local humanoid = raycastResult.Instance.Parent:FindFirstChild("Humanoid")
	
	if humanoid then
		damage = raycastResult.Instance.Name == "Head" and HeadShot or BodyShot
	end
end
9

It won’t be in 3rd person. But thank you for the suggestions