Sometimes raycast does not hit target

Help and Feedback Scripting Support
#1

so sometimes, raycasts does not hit a player. only in some specific areas.
here is a clip of that happening:
https://streamable.com/7mby4b
on the output you can see the part that it is hitting.
I want the raycast to hit the target most of the time
(I’m using runservice to move the frame of the projectile while using raycast to check hits)

#2

What’s your code? Without the code, it’s impossible for us to determine the issue.

#3 
while true do
	dt = RunService.Heartbeat:Wait()
	--print(dt)
	inUse = projectiles.InUse:GetChildren()
	blackList = projectiles.InUse:GetChildren()
	for _, v in pairs(character:GetDescendants()) do
		if v:IsA("BasePart") then
			table.insert(blackList, v)
		end
		if v:IsA("Model") then
			for _, i in pairs(v:GetChildren()) do
				if v:IsA("BasePart") then
					table.insert(blackList, v)
				end
			end
		end
	end
	
	curTime = os.clock()
	
	for _, v in pairs(inUse) do
		--print(v.Name)
		velocity = v:FindFirstChild("Velocity")
		plr = v:FindFirstChild("Player").Value
		damage = v:FindFirstChild("Damage").Value
		passcode = v:FindFirstChild("Code").Value
		prevCFrame = v:FindFirstChild("prevCFrame").Value
		
		if plr == localPlayer then
			raycastParams.FilterDescendantsInstances = blackList
			local raycastResult = workspace:Raycast(prevCFrame.Position, (v.CFrame + v.CFrame.LookVector * (velocity.Value*dt)).Position, raycastParams)

			if raycastResult then
				print(raycastResult.Instance.Name)
				if raycastResult.Instance:IsA("BasePart") then
					x = raycastResult.Instance.Parent
					if x:IsA("Model") then
						hum = x:FindFirstChild("Humanoid")
						if hum and hum ~= character.Humanoid then
							hit:FireServer(passcode, damage, hum)
							v.CFrame = CFrame.new(raycastResult.Position)
							v.CFrame = CFrame.new(10e9, 0, 0)
							v.Parent = projectiles.Saved
							continue
							
						else
							hum = x:FindFirstChild("Humanoid")
							if hum and hum ~= character.Humanoid then
								hit:FireServer(passcode, damage, hum)
								v.CFrame = CFrame.new(raycastResult.Position)
								v.CFrame = CFrame.new(10e9, 0, 0)
								v.Parent = projectiles.Saved
								continue
							end
						end
					end
				end
				v.CFrame = CFrame.new(raycastResult.Position)
				v.CFrame = CFrame.new(10e9, 0, 0)
				v.Parent = projectiles.Saved
				continue
			end
		end
		
		if curTime - passcode >= 5 then
			v.CFrame = CFrame.new(10e9, 0, 0)
			v.Parent = projectiles.Saved
			continue
		end
		
		prevCFrame = v.CFrame
		v.CFrame += v.CFrame.LookVector * (velocity.Value*dt)
		--print(v.Position)
	end
end

it is probobly a mess, but this is the section that deals with moving as well as the raycasting part. (local script)

#4

This won’t answer your question, but you don’t have to use the RunService to move your projectiles. You could use the TweenService to do that more easily.

#5

First of all, I would recommend to use the CollectionService for handling projectiles. This way, you do not need to use a ‘while true do’ loop (code smell).

This vector does not make sense to me. It should be a directional vector, which means that it is not dependent of its origin, so you should not add it to its starting position. What you probably meant to write was: v.CFrame.LookVector * velocity.Value * dt.

#6

doesnt raycast take in two position agruments? so I’m shooting the ray from the previous point to the next

#7

Yes, but the second argument is only a direction. You added the starting position to the direction.