Filter Module

local LightingService   = game:GetService("Lighting")
local Applying          = false
local Objects           = {}

local module = {

    -- To create your own filter, just add another table like these
    -- and give it a unique key so it can be called in module.ApplyFilter
    Filters = {

        ['Realistic']   = {
            ["BloomEffect"]             = {Intensity = 1, Size = 38, Threshold = 0.8};
            ["BlurEffect"]              = {Size = 2};
            ["ColorCorrectionEffect"]   = {Brightness = -0.01, Contrast = 0.07, Saturation = -0.06, TintColor = Color3.fromRGB(255,253,252)};
            ["SunRaysEffect"]           = {Intensity = 0.2, Spread = 0.1};
        };

        ['Western']     = {
            ["BloomEffect"]             = {Intensity = 2, Size = 40, Threshold = 1};
            ["BlurEffect"]              = {Size = 1};
            ["ColorCorrectionEffect"]   = {Brightness = 0.02, Contrast = -0.03, Saturation = -0.4, TintColor = Color3.fromRGB(255,205,123)};
            ["SunRaysEffect"]           = {Intensity = 0.1, Spread = 0.7};
        };

        ['Old School']  = {
            ["BloomEffect"]             = {Intensity = 3, Size = 50, Threshold = 1};
            ["BlurEffect"]              = {Size = 2};
            ["ColorCorrectionEffect"]   = {Brightness = 0.05, Contrast = 0.06, Saturation = -0.95, TintColor = Color3.fromRGB(249,255,255)};
            ["SunRaysEffect"]           = {Intensity = 0.5, Spread = 0.02};
        };

        ['Meme']        = {
            ["BloomEffect"]             = {Intensity = 10, Size = 80, Threshold = 1};
            ["BlurEffect"]              = {Size = 1};
            ["ColorCorrectionEffect"]   = {Brightness = 0.2, Contrast = 1, Saturation = 30, TintColor = Color3.fromRGB(255,255,255)};
            ["SunRaysEffect"]           = {Intensity = 0.01, Spread = 0.12};
        };

    };
}

function module:ApplyFilter(FilterType)

    --Avoid doing two applications at once and making a mess
    if Applying then repeat wait(0.1) until not Applying end Applying = true

    --Remove old filter
    for i=1,#Objects do
        Objects[i]:Destroy()
    end

    --Find chosen filter
    local Filter = self.Filters[FilterType] or self.Filters.Realistic

    --Apply filter
    for obj, props in pairs(Filter) do
        local effect = Instance.new(obj)

        for p,v in pairs(props) do
            effect[p] = v
        end

        Objects[#Objects+1] = effect

        effect.Parent = LightingService

    end

    --Allow new application
    Applying = false

end

return module