Making blood stick to a surface correctly

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  1. What do you want to achieve? Keep it simple and clear!
    I wanna make blood stick to a surface when the little droplets hits something

  2. What is the issue? Include screenshots / videos if possible!
    They don’t orientate with the surface, but to the orientation of the part
    https://gyazo.com/9977bf903ebd2048b74f3bc1feb09f24

  3. What solutions have you tried so far? Did you look for solutions on the Developer Hub?

  • CFrame.lookat
    I’m not going to do raycasting unless it’s my only solution

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Blood Splatter Script

blood.Touched:Connect(function(hit)
	local bloodsplatter = game.ReplicatedStorage.BloodSplatter:Clone()
	bloodsplatter.Parent = workspace
	bloodsplatter.Position = blood.Position + Vector3.new(0,.1,0)
	bloodsplatter.Orientation = hit.Orientation
end)

Try using raycast:

local rayParams = RaycastParams.new()
rayParams.FilterDescendantsInstances = {blood} -- filter so the ray ignores the blood descendants
rayParams.FilterType = Enum.RaycastFilterType.Exclude

local c c = game["Run Service"].Heartbeat:Connect(function()
	local results = workspace:Raycast(blood.Position, Vector3.new(0,-1,0), rayParams)
	-- checks if the ray hits anything
	if not results then return end
	-- hit then disconnect so it doesn't clone blood splatter indefinatly
	c:Disconnect()
	
	local bloodsplatter = game.ReplicatedStorage.BloodSplatter:Clone()
	bloodsplatter.CFrame = CFrame.lookAt(results.Position, results.Position + results.Normal) * CFrame.Angles(math.rad(-90),0,0)
	bloodsplatter.Parent = workspace
end)
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