gistfile1.lua

function HSVtoRGB(h, s, v)
    local r, g, b

    local i = math.floor(h * 6)
    local f = h * 6 - i
    local p = v * (1 - s)
    local q = v * (1 - f * s)
    local t = v * (1 - (1 - f) * s)

    local switch = i % 6
    if switch == 0 then
    r = v g = t b = p
    elseif switch == 1 then
    r = q g = v b = p
    elseif switch == 2 then
    r = p g = v b = t
    elseif switch == 3 then
    r = p g = q b = v
    elseif switch == 4 then
    r = t g = p b = v
    elseif switch == 5 then
    r = v g = p b = q
    end

    return math.floor(r*255), math.floor(g*255), math.floor(b*255)
end