mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-12-27 21:45:42 +00:00
120 lines
4 KiB
C++
120 lines
4 KiB
C++
/*=============================================================================
|
|
Copyright (c) 2011-2019 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_RENDERERS_INFINITY_HPP
|
|
#define SPROUT_DARKROOM_RENDERERS_INFINITY_HPP
|
|
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/tuple/functions.hpp>
|
|
#include <sprout/type_traits/identity.hpp>
|
|
#include <sprout/darkroom/colors/rgb.hpp>
|
|
#include <sprout/darkroom/coords/vector.hpp>
|
|
|
|
namespace sprout {
|
|
namespace darkroom {
|
|
namespace renderers {
|
|
//
|
|
// normal_to_color
|
|
//
|
|
template<typename Color, typename Normal>
|
|
inline SPROUT_CONSTEXPR Color
|
|
normal_to_color(Normal const& nor) {
|
|
return sprout::tuples::make<Color>(
|
|
0.5 + sprout::darkroom::coords::x(nor) * 0.5,
|
|
0.5 + sprout::darkroom::coords::y(nor) * 0.5,
|
|
0.5 + sprout::darkroom::coords::z(nor) * 0.5
|
|
);
|
|
}
|
|
|
|
//
|
|
// direction_gradation
|
|
//
|
|
class direction_gradation {
|
|
public:
|
|
template<typename TargetColor, typename Vector>
|
|
SPROUT_CONSTEXPR TargetColor
|
|
operator()(Vector const& dir) const {
|
|
return sprout::darkroom::renderers::normal_to_color<TargetColor>(dir);
|
|
}
|
|
};
|
|
//
|
|
// make_direction_gradation
|
|
//
|
|
inline SPROUT_CONSTEXPR sprout::darkroom::renderers::direction_gradation
|
|
make_direction_gradation() {
|
|
return sprout::darkroom::renderers::direction_gradation();
|
|
}
|
|
|
|
//
|
|
// uniform_color
|
|
//
|
|
template<typename Color = sprout::darkroom::colors::rgb_f_t>
|
|
class uniform_color {
|
|
public:
|
|
typedef Color color_type;
|
|
private:
|
|
color_type color_;
|
|
public:
|
|
SPROUT_CONSTEXPR uniform_color()
|
|
: color_()
|
|
{}
|
|
uniform_color(uniform_color const&) = default;
|
|
explicit SPROUT_CONSTEXPR uniform_color(color_type const& color)
|
|
: color_(color)
|
|
{}
|
|
template<typename TargetColor, typename Vector>
|
|
SPROUT_CONSTEXPR TargetColor
|
|
operator()(Vector const&) const {
|
|
return color_;
|
|
}
|
|
};
|
|
//
|
|
// make_uniform_color
|
|
//
|
|
inline SPROUT_CONSTEXPR sprout::darkroom::renderers::uniform_color<>
|
|
make_uniform_color() {
|
|
return sprout::darkroom::renderers::uniform_color<>();
|
|
}
|
|
template<typename Color>
|
|
inline SPROUT_CONSTEXPR sprout::darkroom::renderers::uniform_color<Color>
|
|
make_uniform_color(Color const& color) {
|
|
return sprout::darkroom::renderers::uniform_color<Color>(color);
|
|
}
|
|
|
|
//
|
|
// infinity_result
|
|
//
|
|
template<typename Color, typename InfinityColor, typename Vector>
|
|
struct infinity_result
|
|
: public sprout::identity<Color>
|
|
{};
|
|
template<typename Color, typename InfinityColor, typename Vector>
|
|
struct infinity_result<Color, InfinityColor const, Vector>
|
|
: public sprout::darkroom::renderers::infinity_result<Color, InfinityColor, Vector>
|
|
{};
|
|
template<typename Color, typename InfinityColor, typename Vector>
|
|
struct infinity_result<Color, InfinityColor volatile, Vector>
|
|
: public sprout::darkroom::renderers::infinity_result<Color, InfinityColor, Vector>
|
|
{};
|
|
template<typename Color, typename InfinityColor, typename Vector>
|
|
struct infinity_result<Color, InfinityColor const volatile, Vector>
|
|
: public sprout::darkroom::renderers::infinity_result<Color, InfinityColor, Vector>
|
|
{};
|
|
|
|
//
|
|
// calculate_infinity
|
|
//
|
|
template<typename Color, typename InfinityColor, typename Vector>
|
|
inline SPROUT_CONSTEXPR typename sprout::darkroom::renderers::infinity_result<Color, InfinityColor, Vector>::type
|
|
calculate_infinity(InfinityColor const& infinity_color, Vector const& dir) {
|
|
return infinity_color.template operator()<Color>(dir);
|
|
}
|
|
} // namespace renderers
|
|
} // namespace darkroom
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_DARKROOM_RENDERERS_INFINITY_HPP
|