function normal(shader, t_base, t_second, t_detail)
    shader:begin("stub_notransform_2uv", "accum_volumetric_sun")
        :fog(false)
        :zb(false, false)
        :blend(true, blend.one, blend.one)
        :sorting(2, false)

    shader:dx10texture("s_smap", "$user$smap_depth")
    shader:dx10texture("s_position", "$user$position")
    shader:dx10texture("jitter0", "$user$jitter_0")

    shader:dx10sampler("smp_nofilter")
    shader:dx10sampler("smp_jitter")
    shader:dx10sampler("smp_smap")
end