function normal(shader, t_base, t_second, t_detail)
    shader:begin("accum_volume", "accum_volumetric_sun_cascade")
        :fog(false)
        :zb(false, false)
        :blend(true, blend.one, blend.one)
        :sorting(2, false)
    shader:sampler("s_smap"):texture("null")
    shader:sampler("s_position"):texture("$user$position"):f_none()
    shader:sampler("jitter0"):texture("$user$jitter_0"):f_none()
end