How to check if player is grounded using Raycast?

Hello im trying to make a script that checks if a player is on the ground by using a raycast, but I’m having some trouble. Everytime I jump in the air there are a few instances where it detects it hit something. how do I fix this? this is my code:

local player = game.Players.LocalPlayer -- Reference to the player
local character = player.Character or player.CharacterAdded:Wait() -- Get the player's character

character:WaitForChild("Humanoid").JumpHeight = 100
local raycastParams =
raycastParams.FilterDescendantsInstances = {script.Parent}
raycastParams.FilterType = Enum.RaycastFilterType.Exclude
raycastParams.IgnoreWater = true

-- Function to check if the player is on the ground
local function isPlayerOnGround()
	local origin = character.PrimaryPart.Position -- Starting position for the ray
	local direction =, -1, 0).Unit -- Downward direction

	-- Perform raycast
	local result = workspace:Raycast(origin, direction, raycastParams)
	return result 

while true do
	-- Example usage
	local raycastResult =  isPlayerOnGround()
	if  raycastResult then
		print("Player is on the ground")
		print("Player is in the air")

Make sure to filter the character, if your not already doing that.

1 Like

I think i did, is this how you do it properly?


raycastParams.FilterDescendantsInstances = {Character}

oh whoops, thanks! sometimes i overlook stuff

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