Raycast not detecting the floor

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#1

Well, this is the script I have:

local RockRayParams = RaycastParams.new()
        RockRayParams.FilterDescendantsInstances = {Rock}
        RockRayParams.FilterType = Enum.RaycastFilterType.Blacklist
        local RockRay1 = workspace:Raycast(Rock.CFrame.p,Vector3.new(0,-5,0),RockRayParams)
        
        if RockRay1 then
            Rock.Color = RockRay1.Instance.Color
        else
            print("Rays haven't detected anything ;(")
        end
  1. What do you want to achieve? Keep it simple and clear!
    I want the ray to detect the floor, then get color and give it to the part.
  2. What is the issue? Include screenshots / videos if possible!
    As the rays don’t detect anything, the parts stay on their default form.
    image
    image1071×521 156 KB
  3. What solutions have you tried so far? Did you look for solutions on the Developer Hub?
    I have tried increasing the ray direction, and make another ray going the inverse direction (up) but it still doesn’t detect anything. I didn’t find something that could help me.
#2

Unfortunately raycasting has a slight caveat. If the origin of the ray is within any part, it cannot detect/hit that part.

That could possibly be the issue here. If so, try raising the origin position of the ray up a few studs and then casting it longer to account for that.

e.g:

local RockRay1 = workspace:Raycast(Rock.CFrame.Position + Vector3.new(0, 5, 0),Vector3.new(0,-15,0),RockRayParams)
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