How to detect if a part is inside of terrain (NOT ONTOP)

[RetroAmythest]

1. What do you want to achieve? Keep it simple and clear!
   I want to detect if a part is inside of terrain, not on top!

2. What is the issue? Include screenshots / videos if possible!
   I don’t know where to start, I know you will probably need to use Terrain:ReadVoxels, but its so confusing

3. What solutions have you tried so far? Did you look for solutions on the Developer Hub?
   I have tried YT and DevForum, there are some posts about this but they weren’t answered. Also i tried using :GetTouchingParts and it works well, but it glitches if the part is on top of the terrain, it like stutters, it prints isn’t in terrain and is in terrain at the same time. I’m very stuck

[DataSigh]

I made this a while ago for detecting if the players camera is underwater but it also works for any type of terrain and can be edited to check for the player part too.

Detecting if a player is underwater (terrain)

I have this piece of code that checks if the players camera is underwater, and then applies an affect to it. You could probably easily adapt it to checking for the humanoid root part. @Kizylle local function _underwaterCheck() : nil local offset : number = 0.01 local cameraPosition : Vector3 local camera : Camera = workspace.CurrentCamera local region : Region3? task.spawn(function() while task.wait(0.2) do cameraPosition = camera.CFrame.Position …

[RetroAmythest]

OMG THANKS IT WORKED, i just edited the script for it to work for a part, THANKS SO MUCH, solution!