Colour changing script on part when it touches water

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#1

I’m trying to make it so if a part touches water, it changes colour or any property really and then when out of water it changes back to the original colour. Any info on how to do that?

#2

.Touched
Is most likely what you are looking for.
https://developer.roblox.com/en-us/api-reference/event/BasePart/Touched

You can also use Region3’s but that may not be as great of an option depending on what you are doing.

#3

you can’t material by touched.
You have to use raycast to do it!
but i have a simple suggestion and use Touched event. You need create invisible hitboxes where there is water, giving them a specific name like “Water”.
put the following script in the part you want and edit it a bit.

local part= script.Parent
--------------property you want to change, ex: Transparency
local Transparency = part.Transparency
part.Touched:connect(function(hit)
	if hit.Name~='Water' then return end
	part.Transparency= .5
end)
part.TouchEnded:connect(function(hit)
	if hit.Name~= 'Water' then return end
	part.Transparency= Transparency
end)

the above code will make the part look more transparent if the default Transparency property is 0

#4

Terrain completely skipped my mind. When I think of water I always think of custom parts or mesh deform.