luanti-extended-engine-features/leef-math-cd2025
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Update utils.lua

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removed `math.sqrt` in favor of `^ 0.5`
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howmanysmall 2018-12-25 12:36:50 -07:00 committed by GitHub
parent 130fe2aca0
commit 677cb31de7
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1 changed files with 1 additions and 2 deletions
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modules/utils.lua
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@ -4,7 +4,6 @@
local modules = (...): gsub('%.[^%.]+$', '') .. "."
local vec2 = require(modules .. "vec2")
local vec3 = require(modules .. "vec3")
local sqrt = math.sqrt
local abs = math.abs
local ceil = math.ceil
local floor = math.floor
@ -202,7 +201,7 @@ function utils.refract(i, n, ior)
local k = 1 - ior * ior * (1 - d * d)
if k >= 0 then
return (i * ior) - (n * (ior * d + sqrt(k)))
return (i * ior) - (n * (ior * d + k ^ 0.5))
end
return vec3()