function l_special(shader, t_base, t_second, t_detail)
    shader:begin("lod", "lod")
        :blend(false, blend.one, blend.zero)
        :aref(true, 200)
        :zb(true, true)
        :fog(true)
    shader:sampler("s_base0"):texture(t_base)
    shader:sampler("s_base1"):texture(t_base)
    shader:sampler("s_hemi0"):texture(t_base .. "_nm")
    shader:sampler("s_hemi1"):texture(t_base .. "_nm")
end

function normal(shader, t_base, t_second, t_detail)
    shader:begin("lod", "lod")
        :blend(true, blend.srcalpha, blend.invsrcalpha)
        :aref(true, 8)
        :zb(true, false)
        :fog(true)
    shader:sampler("s_base0"):texture(t_base)
    shader:sampler("s_base1"):texture(t_base)
    shader:sampler("s_hemi0"):texture(t_base .. "_nm")
    shader:sampler("s_hemi1"):texture(t_base .. "_nm")
end