function init()
  -- add manually your shaders from /data/shaders

  -- map shaders
  g_shaders.createShader("map_default", "/shaders/map_default_vertex", "/shaders/map_default_fragment")  

  g_shaders.createShader("map_rainbow", "/shaders/map_rainbow_vertex", "/shaders/map_rainbow_fragment")
  g_shaders.addTexture("map_rainbow", "/images/shaders/rainbow.png")

  -- use modules.game_interface.gameMapPanel:setShader("map_rainbow") to set shader

  -- outfit shaders
  g_shaders.createOutfitShader("outfit_default", "/shaders/outfit_default_vertex", "/shaders/outfit_default_fragment")

  g_shaders.createOutfitShader("outfit_rainbow", "/shaders/outfit_rainbow_vertex", "/shaders/outfit_rainbow_fragment")
  g_shaders.addTexture("outfit_rainbow", "/images/shaders/rainbow.png")

  local outfitTextureShaders = {
    ["White Rage"] = "white.png",
    ["Green Rage"] = "green.png",
    ["Red Rage"] = "red.png",
    ["Black Rage"] = "black.png",
    sun = "sun.png",
    cosmos = "cosmos.png",
    blood = "blood.png",
    Night = "night.png",
    ["Blue Galaxy"] = "bgalaxy.png",
    Retro = "10.png",
    ["Galaxy Colors"] = "galaxy.png",
    rainbow = "rainbow.png",
    Rainbow = "rainbow.png",
    shimmering = "flare.png",
    Shimmering = "flare.png",
    drunk = "glitch.png",
    Drunk = "glitch.png",
    stars = "stars.png",
    Stars = "stars.png",
    gold = "gold.png",
    Gold = "gold.png",
    static = "static.png",
    Static = "static.png",
    purplesky = "purplesky.png",
    Purplesky = "purplesky.png",
    camouflage = "camouflage.png",
    Camouflage = "camouflage.png",
    ice = "ice.png",
    purpleneon = "purpleneon.png",
    glitch = "glitch.png",
    Galaxy = "galaxy.png",
    ["Circle Shine"] = "gradient.png",
    Flaming = "fire.png",
    ["Charged Venom"] = "green.png",
    ["Dark Energy"] = "black.png",
    ["Vampiric Energy"] = "red.png",
    ["Electric Phantom"] = "blue.png",
    Vampiric = "blood.png",
    Enterprise = "space.png",
    Cinetic = "noise.png",
    ["Grape Ozeus"] = "purplesky.png",
    Confused = "glitch2.png",
    Energizer = "yellow.png",
    Dortmond = "magma.png",
    Bloohs = "ice2.png",
  }

  for shaderName, textureName in pairs(outfitTextureShaders) do
    g_shaders.createOutfitShader(shaderName, "/shaders/outfit_rainbow_vertex", "/shaders/outfit_texture_fragment")
    g_shaders.addTexture(shaderName, "/images/shaders/" .. textureName)
  end

  -- you can use creature:setOutfitShader("outfit_rainbow") to set shader

end

function terminate()
end