I want to have the same effect as tween services but in a Terrain to simulate the water growing

[yonathaQ (NZY_NPC)]

I used tween Service at first with a part but I didn’t really like it at all and I had the idea of using the terrain for the water physics and the possibility of swimming but I haven’t been able to make the transition as clean as tween does, not even with the help of AI. If someone has a way to achieve this I would be very grateful.

-- Configuración inicial
local centerPosition = Vector3.new(-70.225, 1.9, 196.128)
local fullSize = Vector3.new(424.668, 39.365, 257.769)
local material = Enum.Material.Water
local voxelResolution = 4 -- Resolución estándar del vóxel en Roblox
local steps = 200 -- Número de pasos para una transición más suave
local duration = 10 -- 10 segundos

-- Función para ejecutar el "crecimiento" del terreno de agua
local function playBloxyColaTween()
	-- Limpiar cualquier terreno existente en la región
	local region = Region3.new(
		centerPosition - fullSize / 2,
		centerPosition + fullSize / 2
	)
	region = region:ExpandToGrid(voxelResolution)
	Terrain:ReplaceMaterial(region, voxelResolution, material, Enum.Material.Air)

	-- Animación de crecimiento con más pasos
	local startTime = tick()
	local connection

	local function updateHeight()
		local elapsed = tick() - startTime
		local progress = math.min(elapsed / duration, 1)
		local currentHeight = fullSize.Y * progress

		local region = Region3.new(
			centerPosition - Vector3.new(fullSize.X / 2, currentHeight / 2, fullSize.Z / 2),
			centerPosition + Vector3.new(fullSize.X / 2, currentHeight / 2, fullSize.Z / 2)
		)
		region = region:ExpandToGrid(voxelResolution)

		-- Limpiar la región completa y aplicar agua solo en la altura actual
		local fullRegion = Region3.new(
			centerPosition - fullSize / 2,
			centerPosition + fullSize / 2
		)
		fullRegion = fullRegion:ExpandToGrid(voxelResolution)
		Terrain:ReplaceMaterial(fullRegion, voxelResolution, material, Enum.Material.Air)
		Terrain:ReplaceMaterial(region, voxelResolution, Enum.Material.Air, material)

		if progress < 1 then
			task.wait(duration / steps) -- Dividir en pasos para suavizar
		else
			if connection then
				connection:Disconnect()
			end
		end
	end

	connection = RunService.Heartbeat:Connect(updateHeight)
end

[RatiusRat (Boopmaster)]

I don’t think it’s possible to make it smooth, the resolution of the terrain is limited by the size of the voxel which you can’t change.

[yonathaQ (NZY_NPC)]

I’ve tried everything, so I’ll give you the solution. Maybe I’m missing something, but it’s not as bad as it works right now.