SPROUT_CONSTEXPR color_type
shade_2(Color1 const& col1, Color2 const& col2, Tail const&... tail) const {
return shade_2(
sprout::darkroom::colors::add(col1, col2),
tail...
);
}
SPROUT_CONSTEXPR color_type
shade_1(
Intersection const& inter, Objects const& objs,
sprout::index_tuple<Indexes...>
) const
{
return shade_2(sprout::darkroom::access::get<Indexes>(lights_).template operator()(inter, objs)...);
}
SPROUT_CONSTEXPR color_type
shade_1(Intersection const& inter, Objects const& objs, position_type const& diff) const {
return shade_2(
inter,
objs,
diff,
sprout::darkroom::coords::normalize(diff)
);
}
SPROUT_CONSTEXPR color_type
shade_1(Intersection const& inter, LightRayIntersection const& light_ray_inter) const {
return shade_2(
inter,
!sprout::darkroom::intersects::does_intersect(light_ray_inter)
|| sprout::darkroom::intersects::distance(light_ray_inter)
< sprout::numeric_limits<unit_type>::epsilon()
? NS_SSCRISK_CEL_OR_SPROUT::max(
sprout::numeric_limits<unit_type>::epsilon(),
sprout::darkroom::coords::dot(
dir_,
sprout::darkroom::intersects::normal(inter)
)
)
: 0
);
}