Cubic box splitting

Help and Feedback Scripting Support
#1

I wanted to learn how useful cubic things are in a 3d world environment and someone suggested box splitting like 2 4 16 32 etc.

The problem is that my mini cubes are not fitting inside my square.

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-- big square variables
local size = {x=5, y=5, z=5}
local pos = {x=0, y=0, z=0}

local Box = Instance.new("Part")
Box.Color = Color3.fromRGB(255, 255, 255)
Box.Material = Enum.Material.SmoothPlastic
Box.Transparency = .5
Box.Parent = workspace
Box.Size = Vector3.new(size.x, size.y, size.z)
Box.Position = Vector3.new(pos.x, pos.y, pos.z)
Box.CanCollide = true
Box.Anchored = true

-- resolution variable
local resolution = 4

-- calculate the size of each mini square
local miniSize = {
	x = size.x / resolution,
	y = size.y / resolution,
	z = size.z / resolution
}

-- create empty table to store mini square positions
local miniSquares = {}

-- loop through each mini square and add its position to the table
for x = 1, resolution do
	for y = 1, resolution do
		for z = 1, resolution do
			table.insert(miniSquares, {
				x = (x - 1) * miniSize.x + pos.x,
				y = (y - 1) * miniSize.y + pos.y,
				z = (z - 1) * miniSize.z + pos.z
			})
		end
	end
end

for Index, Value in ipairs(miniSquares) do
	if type(Value) == "table" then
		local Part = Instance.new("Part")
		Part.Color = Color3.fromRGB(255, 0, 0)
		Part.Material = Enum.Material.SmoothPlastic
		Part.Transparency = .5
		Part.Parent = workspace
		Part.Size = Vector3.new(miniSize.x, miniSize.y, miniSize.z)
		Part.Position = Vector3.new(Value.x, Value.y, Value.z)
		Part.CanCollide = true
		Part.Anchored = true
	end
end

How do I fix this?

#2

it’s most likely because Roblox’s calculations are off, or you just need to make the boxes a little bit smaller.

This is just my inference

#3

no its not to do with roblox, its the math and the offsets of the mini parts.

#4

Change the category from #help-and-feedback:creations-feedback To #help-and-feedback:scripting-support

#5 
local function SubdividePartSize(Part:Instance,SubdivideFaces)
return {X=Part.Size.X/SubdivideFaces;Y=Part.Size.Y/SubdivideFaces;Z=Part.Size.Z/SubdivideFaces}
end
print(SubdividePartSize(CubeToSubdivide,3)['X']) --> X Size for mini cube
print(SubdividePartSize(CubeToSubdivide,3)['Y']) --> Y Size for mini cube
print(SubdividePartSize(CubeToSubdivide,3)['Z']) --> Z Size for mini cube

→ 9x3 cubes, 1 stud size = 1 cube, 3 stud size

#6

That is not the issue. It is the correct number of parts, but they should be inside the cube not outside.

#7

Sorry for slow reply, wifi is slow

  1. position the middle minicube in the big cube position

  2. Position the top/bottom/front/etc. Part by adding the middle part position and the middle part size(only 1, which is just X, Y,Z. Don’t put Position+Size. Do X+X or Y+Y for example)

  3. Then add the non- vertical/ horizontal by changing 2 members of XYZ instead of 1, For example (Position = Vector3.new(X.Pos+X.Size,Y.Pos+Y.Size,Z…Pos) (in no. 2 it’s Position=Vector3.new(X.Pos+X.Size,Y.Pos, Z.Pos) Difference)

#8

still need help with this because its hard

#9

I just ran your script in studio, and it looks like you’re not accounting for the offset required to line up the mini cubes that are created. When creating the single larger part, you’re setting is position to (0,0,0), and when you’re creating all of the mini cubes, you’re starting at (0,0,0), which is the dead center of the main part.

This can be easily fixed with some simple math during the loop where you’re creating the mini cube positions:

-- loop through each mini square and add its position to the table
for x = 1, resolution do
	for y = 1, resolution do
		for z = 1, resolution do
			table.insert(miniSquares, {
				x = ((x - 1) * miniSize.x + pos.x) - ((Box.Size.X / 2) - (miniSize.x / 2)),
				y = ((y - 1) * miniSize.y + pos.y) - ((Box.Size.Y / 2) - (miniSize.y / 2)),
				z = ((z - 1) * miniSize.z + pos.z) - ((Box.Size.Z / 2) - (miniSize.z / 2))
			})
		end
	end
end

I have tried this with resolutions 2, 3, 4 and 10 and it seems to work correctly every time. Hope this helps!

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