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[sprout.darkroom] implement refraction process

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This commit is contained in:
bolero-MURAKAMI 2013-12-12 23:29:50 +09:00
parent 8e306168da
commit 63ac0d0df5
10 changed files with 494 additions and 69 deletions
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29
sprout/darkroom/objects/intersect.hpp
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@ -10,6 +10,7 @@
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/tuple/flex.hpp>
#include <sprout/type_traits/enabler_if.hpp>
#include <sprout/darkroom/access/traits.hpp>
#include <sprout/darkroom/access/access.hpp>
@ -22,16 +23,27 @@ namespace sprout {
struct intersection_result;
namespace detail {
template<typename Object, typename Ray, typename IndexTuple>
struct intersection_result_impl;
template<typename Object, typename Ray, sprout::index_t... Indexes>
struct intersection_result_impl<Object, Ray, sprout::index_tuple<Indexes...> >
: public sprout::tuples::common_recursive_flex_type<
typename sprout::darkroom::objects::intersection_result<typename sprout::darkroom::access::element<Indexes, Object>::type, Ray>::type...
>
{};
template<typename Object, typename Ray, bool IsTuple>
struct intersection_result;
template<typename Object, typename Ray>
struct intersection_result<Object, Ray, false>
: public Object::template intersection<Ray>
{};
template<typename Object, typename Ray>
struct intersection_result<Object, Ray, true>
: public sprout::darkroom::objects::intersection_result<typename sprout::darkroom::access::unit<Object>::type, Ray>
: public sprout::darkroom::objects::detail::intersection_result_impl<
Object, Ray,
typename sprout::make_index_tuple<sprout::darkroom::access::size<Object>::value>::type
>
{};
} // namespace detail
@ -81,14 +93,15 @@ namespace sprout {
template<typename Objects, typename Ray, typename A, typename B>
SPROUT_CONSTEXPR typename sprout::darkroom::objects::intersection_result<Objects, Ray>::type
comp(A const& a, B const& b) const {
typedef typename sprout::darkroom::objects::intersection_result<Objects, Ray>::type type;
return sprout::darkroom::intersects::does_intersect(a)
&& sprout::darkroom::intersects::does_intersect(b)
? sprout::darkroom::intersects::distance(a) < sprout::darkroom::intersects::distance(b)
? a
: b
? sprout::tuples::recursive_flex<type>(a)
: sprout::tuples::recursive_flex<type>(b)
: sprout::darkroom::intersects::does_intersect(a)
? a
: b
? sprout::tuples::recursive_flex<type>(a)
: sprout::tuples::recursive_flex<type>(b)
;
}
public:
@ -107,7 +120,9 @@ namespace sprout {
template<typename Objects, typename Ray>
SPROUT_CONSTEXPR typename sprout::darkroom::objects::intersection_result<Objects, Ray>::type
operator()(Objects const& objs, Ray const& ray) const {
return sprout::darkroom::objects::intersect(sprout::darkroom::access::get<0>(objs), ray);
return sprout::tuples::recursive_flex(
sprout::darkroom::objects::intersect(sprout::darkroom::access::get<0>(objs), ray)
);
}
};
} // namespace detail