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Sprout/sprout/darkroom/materials/material.hpp

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2.7 KiB
C++

/*=============================================================================
Copyright (c) 2011-2013 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#ifndef SPROUT_DARKROOM_MATERIALS_MATERIAL_HPP
#define SPROUT_DARKROOM_MATERIALS_MATERIAL_HPP
#include <sprout/config.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/darkroom/access/access.hpp>
#include <sprout/darkroom/colors/rgb.hpp>
#include <sprout/darkroom/materials/calculate.hpp>
namespace sprout {
namespace darkroom {
namespace materials {
//
// color
// reflection
//
template<typename T>
inline SPROUT_CONSTEXPR auto
color(T&& t)
SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(sprout::darkroom::access::get<0>(sprout::forward<T>(t))))
-> decltype(sprout::darkroom::access::get<0>(sprout::forward<T>(t)))
{
return sprout::darkroom::access::get<0>(sprout::forward<T>(t));
}
template<typename T>
inline SPROUT_CONSTEXPR auto
reflection(T&& t)
SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(sprout::darkroom::access::get<1>(sprout::forward<T>(t))))
-> decltype(sprout::darkroom::access::get<1>(sprout::forward<T>(t)))
{
return sprout::darkroom::access::get<1>(sprout::forward<T>(t));
}
//
// calculate_material
//
template<typename Material, typename Unit>
inline SPROUT_CONSTEXPR auto
calculate_material(Material const& mat, Unit const& u, Unit const& v)
-> decltype(sprout::tuples::make_tuple(
sprout::darkroom::materials::calculate(sprout::darkroom::materials::color(mat), u, v),
sprout::darkroom::materials::calculate(sprout::darkroom::materials::reflection(mat), u, v)
))
{
return sprout::tuples::make_tuple(
sprout::darkroom::materials::calculate(sprout::darkroom::materials::color(mat), u, v),
sprout::darkroom::materials::calculate(sprout::darkroom::materials::reflection(mat), u, v)
);
}
//
// make_material_image
//
template<typename ColorImage, typename ReflectionImage>
inline SPROUT_CONSTEXPR sprout::tuples::tuple<ColorImage, ReflectionImage>
make_material_image(ColorImage const& col, ReflectionImage const& ref) {
return sprout::tuples::make_tuple(col, ref);
}
//
// material
//
typedef sprout::tuples::tuple<sprout::darkroom::colors::rgb_f_t, double> material;
} // namespace materials
} // namespace darkroom
} // namespace sprout
#endif // #ifndef SPROUT_DARKROOM_MATERIALS_MATERIAL_HPP