function normal(shader, t_base, t_second, t_detail)
    shader:begin("effects_wallmark", "stub_default_ma")
        :blend(true, blend.destcolor, blend.srccolor)
        :zb(true, false)
    shader:dx10texture("s_base", t_base)
    shader:dx10sampler("smp_rtlinear")
    shader:dx10color_write_enable(true, true, true, false)
end