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https://github.com/bolero-MURAKAMI/Sprout.git
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84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
#ifndef SPROUT_DARKROOM_MATERIALS_MATERIAL_HPP
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#define SPROUT_DARKROOM_MATERIALS_MATERIAL_HPP
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#include <sprout/config.hpp>
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#include <sprout/tuple/tuple.hpp>
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#include <sprout/utility/forward.hpp>
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#include <sprout/darkroom/access/access.hpp>
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#include <sprout/darkroom/colors/rgb.hpp>
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namespace sprout {
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namespace darkroom {
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namespace materials {
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//
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// color
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// reflection
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//
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template<typename T>
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SPROUT_CONSTEXPR auto color(
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T&& t
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) SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(sprout::darkroom::access::get<0>(sprout::forward<T>(t))))
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-> decltype(sprout::darkroom::access::get<0>(sprout::forward<T>(t)))
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{
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return sprout::darkroom::access::get<0>(sprout::forward<T>(t));
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}
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template<typename T>
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SPROUT_CONSTEXPR auto reflection(
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T&& t
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) SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(sprout::darkroom::access::get<1>(sprout::forward<T>(t))))
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-> decltype(sprout::darkroom::access::get<1>(sprout::forward<T>(t)))
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{
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return sprout::darkroom::access::get<1>(sprout::forward<T>(t));
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}
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//
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// calc_color
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// calc_reflection
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//
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template<typename Image, typename Position, typename Normal>
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SPROUT_CONSTEXPR auto calc_color(Image&& t, Position const&, Normal const&) SPROUT_NOEXCEPT
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-> decltype(t)
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{
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return t;
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}
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template<typename Image, typename Position, typename Normal>
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SPROUT_CONSTEXPR auto calc_reflection(Image&& t, Position const&, Normal const&) SPROUT_NOEXCEPT
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-> decltype(t)
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{
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return t;
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}
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//
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// calc_material
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//
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template<typename Material, typename Position, typename Normal>
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SPROUT_CONSTEXPR auto calc_material(Material const& mat, Position const& pos, Normal const& nor)
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-> decltype(sprout::tuples::make_tuple(
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sprout::darkroom::materials::calc_color(sprout::darkroom::materials::color(mat), pos, nor),
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sprout::darkroom::materials::calc_reflection(sprout::darkroom::materials::reflection(mat), pos, nor)
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))
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{
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return sprout::tuples::make_tuple(
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sprout::darkroom::materials::calc_color(sprout::darkroom::materials::color(mat), pos, nor),
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sprout::darkroom::materials::calc_reflection(sprout::darkroom::materials::reflection(mat), pos, nor)
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);
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}
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//
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// make_material_image
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//
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template<typename ColorImage, typename ReflectionImage>
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SPROUT_CONSTEXPR sprout::tuples::tuple<ColorImage, ReflectionImage>
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make_material_image(ColorImage const& col, ReflectionImage const& ref) {
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return sprout::tuples::make_tuple(col, ref);
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}
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//
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// material
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//
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typedef sprout::tuples::tuple<sprout::darkroom::colors::rgb_f, double> material;
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} // namespace materials
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} // namespace darkroom
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} // namespace sprout
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#endif // #ifndef SPROUT_DARKROOM_MATERIALS_MATERIAL_HPP
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