local tex_base = "water\\water_water"
local tex_nmap = "water\\water_normal"
local tex_dist = "water\\water_dudv"

function normal(shader, t_base, t_second, t_detail)
    shader:begin("water", "water")
        :sorting(2, false)
        :blend(true, blend.srcalpha, blend.invsrcalpha)
        :zb(true, false)
        :distort(true)
        :fog(false)
    shader:sampler("s_base"):texture(tex_base)
    shader:sampler("s_nmap"):texture(tex_nmap)
    shader:sampler("s_env0"):texture("$user$sky0"):clamp()
    shader:sampler("s_env1"):texture("$user$sky1"):clamp()
end

--function l_special(shader, t_base, t_second, t_detail)
--  shader:begin          ("waterd","waterd")
--        : sorting       (2, true)
--        : blend         (true,blend.srcalpha,blend.invsrcalpha)
--        : zb            (true,false)
--        : fog           (false)
--        : distort       (true)
--  shader:sampler        ("s_base")       :texture  (tex_base)
--  shader:sampler        ("s_distort")    :texture  (tex_dist)
--end