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darkroom/objects/aa_plane.hpp 追加

darkroom/tracers/raytracer.hpp で、uv座標への変換で上下が反転していた問題を修正。
This commit is contained in:
bolero-MURAKAMI 2011-12-12 01:18:01 +09:00
parent 034bd6f7e4
commit c86fa430c1
4 changed files with 214 additions and 2 deletions

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@ -4,5 +4,6 @@
#include <sprout/config.hpp>
#include <sprout/darkroom/objects/intersect.hpp>
#include <sprout/darkroom/objects/sphere.hpp>
#include <sprout/darkroom/objects/aa_plane.hpp>
#endif // #ifndef SPROUT_DARKROOM_OBJECTS_HPP

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@ -0,0 +1,211 @@
#ifndef SPROUT_DARKROOM_OBJECTS_AA_PLANE_HPP
#define SPROUT_DARKROOM_OBJECTS_AA_PLANE_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/tuple/functions.hpp>
#include <sprout/darkroom/access/access.hpp>
#include <sprout/darkroom/coords/vector.hpp>
#include <sprout/darkroom/rays/ray.hpp>
#include <sprout/darkroom/materials/material.hpp>
namespace sprout {
namespace darkroom {
namespace objects {
//
// aa_plane_direction
//
struct aa_plane_direction {
public:
enum values {
x,
y,
z
};
};
//
// basic_aa_plane
//
template<typename Material, typename Position = sprout::darkroom::coords::vector3d>
class basic_aa_plane {
public:
typedef Material material_type;
typedef Position position_type;
typedef typename sprout::darkroom::access::unit<position_type>::type unit_type;
typedef sprout::darkroom::objects::aa_plane_direction aa_plane_direction;
public:
template<typename Ray>
struct intersection {
typedef sprout::tuples::tuple<
bool,
unit_type,
position_type,
position_type,
decltype(sprout::darkroom::materials::calc_material(
std::declval<material_type const&>(),
std::declval<position_type const&>(),
std::declval<position_type const&>()
))
> type;
};
private:
aa_plane_direction::values direction_value_;
unit_type val_;
material_type mat_;
private:
SPROUT_CONSTEXPR bool is_x() const {
return direction_value_ == aa_plane_direction::x;
}
SPROUT_CONSTEXPR bool is_y() const {
return direction_value_ == aa_plane_direction::y;
}
SPROUT_CONSTEXPR bool is_z() const {
return direction_value_ == aa_plane_direction::z;
}
template<typename Ray>
SPROUT_CONSTEXPR typename intersection<Ray>::type intersect_6(
bool does_intersect,
unit_type distance,
position_type const& point_of_intersection,
position_type const& normal
) const
{
return typename intersection<Ray>::type(
does_intersect,
distance,
point_of_intersection,
normal,
sprout::darkroom::materials::calc_material(
mat_,
point_of_intersection,
normal
)
);
}
template<typename Ray>
SPROUT_CONSTEXPR typename intersection<Ray>::type intersect_5(
int hit_side,
bool does_intersect,
unit_type distance,
position_type const& point_of_intersection
) const
{
return intersect_6<Ray>(
does_intersect,
distance,
point_of_intersection,
(is_x() ? position_type(hit_side > 0 ? 1 : -1, 0, 0)
: is_y() ? position_type(0, hit_side > 0 ? 1 : -1, 0)
: position_type(0, 0, hit_side > 0 ? 1 : -1)
)
);
}
template<typename Ray>
SPROUT_CONSTEXPR typename intersection<Ray>::type intersect_4(
Ray const& ray,
int hit_side,
bool does_intersect,
unit_type distance
) const
{
return intersect_5<Ray>(
hit_side,
does_intersect,
distance,
does_intersect
? sprout::darkroom::rays::point_of_intersection(ray, distance)
: position_type(0, 0, 0)
);
}
template<typename Ray>
SPROUT_CONSTEXPR typename intersection<Ray>::type intersect_3(
Ray const& ray,
unit_type pos_v,
unit_type dir_v,
int hit_side,
bool does_intersect
) const
{
return intersect_4(
ray,
hit_side,
does_intersect,
does_intersect
? (pos_v - val_) / -dir_v
: unit_type(-1)
);
}
template<typename Ray>
SPROUT_CONSTEXPR typename intersection<Ray>::type intersect_2(
Ray const& ray,
unit_type pos_v,
unit_type dir_v,
int hit_side
) const
{
return intersect_3(
ray,
pos_v,
dir_v,
hit_side,
(hit_side > 0 && dir_v < 0) || (hit_side < 0 && dir_v > 0)
);
}
template<typename Ray>
SPROUT_CONSTEXPR typename intersection<Ray>::type intersect_1(
Ray const& ray,
unit_type pos_v,
unit_type dir_v
) const
{
return intersect_2(
ray,
pos_v,
dir_v,
pos_v > val_ ? 1 : -1
);
}
public:
SPROUT_CONSTEXPR basic_aa_plane(
aa_plane_direction::values direction_value,
unit_type val,
material_type const& mat
)
: direction_value_(direction_value)
, val_(val)
, mat_(mat)
{};
template<typename Ray>
SPROUT_CONSTEXPR typename intersection<Ray>::type intersect(Ray const& ray) const {
return intersect_1(
ray,
(is_x() ? sprout::darkroom::coords::x(sprout::darkroom::rays::position(ray))
: is_y() ? sprout::darkroom::coords::y(sprout::darkroom::rays::position(ray))
: sprout::darkroom::coords::z(sprout::darkroom::rays::position(ray))
),
(is_x() ? sprout::darkroom::coords::x(sprout::darkroom::rays::direction(ray))
: is_y() ? sprout::darkroom::coords::y(sprout::darkroom::rays::direction(ray))
: sprout::darkroom::coords::z(sprout::darkroom::rays::direction(ray))
)
);
}
};
//
// make_aa_plane
//
template<typename Material, typename Unit>
SPROUT_CONSTEXPR inline sprout::darkroom::objects::basic_aa_plane<Material>
make_aa_plane(
sprout::darkroom::objects::aa_plane_direction::values dir_val,
Unit const& val,
Material const& mat
)
{
return sprout::darkroom::objects::basic_aa_plane<Material>(dir_val, val, mat);
}
} // namespace objects
} // namespace darkroom
} // namespace sprout
#endif // #ifndef SPROUT_DARKROOM_OBJECTS_AA_PLANE_HPP

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@ -56,7 +56,7 @@ namespace sprout {
sprout::darkroom::coords::scale(sprout::darkroom::rays::direction(ray), dist)
);
}
} // namespace ray
} // namespace rays
} // namespace darkroom
} // namespace sprout

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@ -41,7 +41,7 @@ namespace sprout {
lights,
camera.template operator()(
static_cast<typename Camera::unit_type>(x) / width - 0.5,
static_cast<typename Camera::unit_type>(y) / height - 0.5
-(static_cast<typename Camera::unit_type>(y) / height - 0.5)
),
depth_max
);