How do i make it so textures get hidden when they dont need to be seen?

Help and Feedback Scripting Support
#1

what im trying to do is to hide the textures on a face that isnt shown (basically if theres a block next to another block it hides the texture on the face that is next to it)
image
its to prevent this. (and to remove lag)
i have tried myself and tried looking it up but no luck.
(sorry if im bad at explaining)

#2

What I’ve done in the past with my game Island Miners was to set the names based on their coordinates divided by the voxel size. For example, 1x1x1, 2x1x1 – I then check neighboring cells based on taking those coordinates and adding / subtracting on each axis. Since there’s only 6 possible sides on a voxel, it’d look something like this;

local Directions = {
	{Offset = Vector3.new(1,0,0), Surface = Enum.NormalId.Right},
	{Offset = Vector3.new(-1,0,0), Surface = Enum.NormalId.Left},
	{Offset = Vector3.new(0,1,0), Surface = Enum.NormalId.Top},
	{Offset = Vector3.new(0,-1,0), Surface = Enum.NormalId.Bottom},
	{Offset = Vector3.new(0,0,1), Surface = Enum.NormalId.Back},
	{Offset = Vector3.new(0,0,-1), Surface = Enum.NormalId.Front},
}

local Surfaces = {
	Enum.NormalId.Top,
	Enum.NormalId.Bottom,
	Enum.NormalId.Left,
	Enum.NormalId.Right,
	Enum.NormalId.Front,
	Enum.NormalId.Back
}

local Voxels = {}
local VoxelSize = 4

for x = 1, 10 do
	for y = 1, 3 do
		for z = 1, 10 do
			Voxels[x..'x'..y..'x'..z] = math.random(1,6) -- block type ID
			local Part = Instance.new('Part')
			Part.Name = x..'x'..y..'x'..z
			Part.Size = Vector3.new(VoxelSize,VoxelSize,VoxelSize)
			Part.Anchored = true
			Part.CFrame = CFrame.new((x-1)*VoxelSize,(y-1)*VoxelSize,(z-1)*VoxelSize)
			for i,v in pairs(Surfaces) do
				local Decal = Instance.new('Decal')
				Decal.Name = tostring(v)
				Decal.Texture = 'http://www.roblox.com/asset/?id=12351989257'
				Decal.Face = v
				Decal.Parent = Part
			end
			Part.Parent = workspace
		end
	end
end

for i,v in pairs(Voxels) do
	local coordinates = string.split(i,'x')
	
	local Pos = Vector3.new(coordinates[1],coordinates[2],coordinates[3])
	for i,v in ipairs(Directions) do
		local Offset = v.Offset
		local Neighbor = Pos.X-Offset.X..'x'..Pos.Y-Offset.Y..'x'..Pos.Z-Offset.Z
		
		
		if Voxels[Neighbor] then
			local NeighorBlock = workspace:findFirstChild(Neighbor)
			
			if NeighorBlock then
				local NeighborSurface = NeighorBlock:findFirstChild(tostring(v.Surface))
				if NeighborSurface then
					NeighborSurface:Destroy()
				end
			end
		end
	end
end

Here’s the result:
image

I also use something similar to remove blocks you can’t see to reduce lag

1 Like
#3

ill check it out, cant right now though.

#4

though i cant make the coordinates in an easy way because theres also breaking and building which i have a different system than you probably

#5

My game allows you to build / remove blocks from your own island, a little more complex than the code I provided, but when you place a block, you can check surrounding based on that coordinate. When you remove a block, iterate through the surrounding blocks and show the textures again. Check the game out and you’ll see. :slight_smile:

2 Likes
#6

oh though i found a script on devforum from here just now. but i just have to tweak the building script and the script itself for it to work properly, ill tweak it and come back with a solution for everyone else who is looking for the answer. anyways i appreciate your help :slight_smile:

#7

Maybe what you want to do instead is fusing parts whenever their neighbors are of the same type.
Greedy Meshing Algorithm - Roblox Scripting Tutorial - YouTube

1 Like
#8

Aah… Mine was written in such a way to make it easier to save / load the builds without potential of floating point inaccuracies eating up a bunch of characters — that’s why I had it formatted the way I did. Good luck! :slight_smile: