Weird issue with math.noise

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#1

I’m currently experimenting with procedural terrain generation and encountered an issue. I’m trying to generate a heightmap using math.noise, but for some reason every value it outputs is 0.

Here’s the code snippet in question (ignore the weird function at start and some other stuff that might grind your gears, it’s only there for debugging):

local seed = (function()
	math.randomseed(tick())
	return math.random(0,1000)
end)()

local Heightmap = {}
for x=1,100 do
	local v = {}
	Heightmap[x] = v
	for y=1,100 do
		v[y] = math.noise(x,y,seed)
		print(x,y,seed,v[y])
		wait()
	end
end

Seems like a bug either in Studio or the engine. Replacing it with math.random seems to “fix” it, but I’m still trying to figure out whether anyone else also has this problem.

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#2

If every argument you give math.noise is an integer, the output will always be 0.

Just multiply the coordinates by some random number that keeps them from being integers.

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