function normal(shader, t_base, t_second, t_detail)
    shader:begin("clouds", "clouds")
        :fog(false)
        :zb(false, false)
        :sorting(3, true)
        :blend(true, blend.srcalpha, blend.invsrcalpha)

    shader:dx10texture("s_clouds0", "null")
    shader:dx10texture("s_clouds1", "null")

    shader:dx10sampler("smp_base")
end