mirror of
https://github.com/bolero-MURAKAMI/Sprout
synced 2025-08-03 12:49:50 +00:00
[sprout.darkroom] implement refraction process
This commit is contained in:
bolero-MURAKAMI
parent
8e306168da
commit
63ac0d0df5
10 changed files with 494 additions and 69 deletions
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@ -15,29 +15,44 @@
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namespace sprout {
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namespace darkroom {
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namespace renderers {
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//
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//
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//
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SPROUT_STATIC_CONSTEXPR std::size_t default_depth = 4;
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//
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// calculate_result
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//
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template<typename Color, typename Renderer, typename Camera, typename Objects, typename Lights, typename Ray>
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template<typename Color, typename Renderer, typename Camera, typename Objects, typename Lights, typename Ray, typename Refractions = double>
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struct calculate_result
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: public sprout::identity<Color>
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{};
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template<typename Color, typename Renderer, typename Camera, typename Objects, typename Lights, typename Ray>
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struct calculate_result<Color, Renderer const, Camera, Objects, Lights, Ray>
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: public sprout::darkroom::renderers::calculate_result<Color, Renderer, Camera, Objects, Lights, Ray>
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template<typename Color, typename Renderer, typename Camera, typename Objects, typename Lights, typename Ray, typename Refractions>
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struct calculate_result<Color, Renderer const, Camera, Objects, Lights, Ray, Refractions>
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: public sprout::darkroom::renderers::calculate_result<Color, Renderer, Camera, Objects, Lights, Ray, Refractions>
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{};
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template<typename Color, typename Renderer, typename Camera, typename Objects, typename Lights, typename Ray>
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struct calculate_result<Color, Renderer volatile, Camera, Objects, Lights, Ray>
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: public sprout::darkroom::renderers::calculate_result<Color, Renderer, Camera, Objects, Lights, Ray>
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template<typename Color, typename Renderer, typename Camera, typename Objects, typename Lights, typename Ray, typename Refractions>
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struct calculate_result<Color, Renderer volatile, Camera, Objects, Lights, Ray, Refractions>
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: public sprout::darkroom::renderers::calculate_result<Color, Renderer, Camera, Objects, Lights, Ray, Refractions>
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{};
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template<typename Color, typename Renderer, typename Camera, typename Objects, typename Lights, typename Ray>
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struct calculate_result<Color, Renderer const volatile, Camera, Objects, Lights, Ray>
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: public sprout::darkroom::renderers::calculate_result<Color, Renderer, Camera, Objects, Lights, Ray>
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template<typename Color, typename Renderer, typename Camera, typename Objects, typename Lights, typename Ray, typename Refractions>
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struct calculate_result<Color, Renderer const volatile, Camera, Objects, Lights, Ray, Refractions>
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: public sprout::darkroom::renderers::calculate_result<Color, Renderer, Camera, Objects, Lights, Ray, Refractions>
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{};
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//
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// calculate
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//
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template<typename Color, typename Renderer, typename Camera, typename Objects, typename Lights, typename Ray, typename Refractions>
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inline SPROUT_CONSTEXPR typename sprout::darkroom::renderers::calculate_result<Color, Renderer, Camera, Objects, Lights, Ray, Refractions>::type
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calculate(
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Renderer const& renderer,
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Camera const& camera, Objects const& objs, Lights const& lights,
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Ray const& ray, std::size_t depth_max, Refractions const& refracs
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)
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{
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return renderer.template operator()<Color>(camera, objs, lights, ray, depth_max, refracs);
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}
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template<typename Color, typename Renderer, typename Camera, typename Objects, typename Lights, typename Ray>
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inline SPROUT_CONSTEXPR typename sprout::darkroom::renderers::calculate_result<Color, Renderer, Camera, Objects, Lights, Ray>::type
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calculate(
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@ -12,7 +12,13 @@
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/limits.hpp>
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#include <sprout/utility/pair.hpp>
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#include <sprout/tuple/functions.hpp>
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#include <sprout/tuple/tuple/type_traits.hpp>
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#include <sprout/tuple/tuple/make_tuple.hpp>
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#include <sprout/tuple/tuple/get.hpp>
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//#include <sprout/tuple/operation/push_back.hpp>
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//#include <sprout/tuple/operation/pop_back.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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#include <sprout/darkroom/coords/vector.hpp>
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@ -35,14 +41,14 @@ namespace sprout {
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template<
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typename Color,
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typename Camera, typename Objects, typename Lights,
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typename Ray, typename Intersection, typename Renderer,
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typename Ray, typename Refractions, typename Intersection, typename Renderer,
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typename Direction
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>
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SPROUT_CONSTEXPR Color
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color_1(
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Camera const& camera, Objects const& objs, Lights const& lights,
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Ray const& ray, Intersection const& inter, Renderer const& renderer,
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std::size_t depth_max,
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std::size_t depth_max, Refractions const& refracs,
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Direction const& new_dir
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) const
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{
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@ -54,20 +60,21 @@ namespace sprout {
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sprout::darkroom::rays::detach_position(sprout::darkroom::intersects::point_of_intersection(inter), new_dir),
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new_dir
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),
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depth_max - 1
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depth_max - 1,
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refracs
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);
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}
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public:
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template<
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typename Color,
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typename Camera, typename Objects, typename Lights,
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typename Ray, typename Intersection, typename Renderer
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typename Ray, typename Refractions, typename Intersection, typename Renderer
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>
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SPROUT_CONSTEXPR Color
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operator()(
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Camera const& camera, Objects const& objs, Lights const& lights,
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Ray const& ray, Intersection const& inter, Renderer const& renderer,
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std::size_t depth_max
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std::size_t depth_max, Refractions const& refracs
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) const
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{
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typedef typename std::decay<
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@ -80,7 +87,7 @@ namespace sprout {
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? color_1<Color>(
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camera, objs, lights,
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ray, inter, renderer,
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depth_max,
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depth_max, refracs,
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sprout::darkroom::coords::reflect(
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sprout::darkroom::rays::direction(ray),
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sprout::darkroom::intersects::normal(inter)
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@ -91,49 +98,68 @@ namespace sprout {
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}
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};
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//
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// whitted_transparent
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// whitted_transmit
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//
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class whitted_transparent {
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class whitted_transmit {
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private:
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template<
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typename Color,
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typename Camera, typename Objects, typename Lights,
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typename Ray, typename Intersection, typename Renderer,
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typename Ray, typename Refractions, typename Intersection, typename Renderer,
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typename Direction
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>
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SPROUT_CONSTEXPR Color
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SPROUT_CONSTEXPR sprout::pair<Color, bool>
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color_1(
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Camera const& camera, Objects const& objs, Lights const& lights,
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Ray const& ray, Intersection const& inter, Renderer const& renderer,
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std::size_t depth_max,
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std::size_t depth_max, Refractions const& refracs,
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Direction const& new_dir
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) const
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{
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return !sprout::darkroom::coords::is_zero(new_dir)
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? sprout::darkroom::renderers::calculate<Color>(
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renderer,
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camera, objs, lights,
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sprout::tuples::remake<Ray>(
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ray,
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sprout::darkroom::rays::detach_position(sprout::darkroom::intersects::point_of_intersection(inter), new_dir),
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new_dir
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return sprout::darkroom::coords::is_zero(new_dir) ? sprout::pair<Color, bool>(sprout::tuples::make<Color>(0, 0, 0), true)
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: sprout::darkroom::intersects::is_from_inside(inter) ? sprout::pair<Color, bool>(
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sprout::darkroom::renderers::calculate<Color>(
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renderer,
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camera, objs, lights,
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sprout::tuples::remake<Ray>(
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ray,
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sprout::darkroom::rays::detach_position(sprout::darkroom::intersects::point_of_intersection(inter), new_dir),
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new_dir
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),
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depth_max - 1,
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sprout::tuples::remake<Refractions>(refracs, 1.0)
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//sprout::tuples::pop_back(refracs)
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),
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depth_max - 1
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false
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)
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: sprout::pair<Color, bool>(
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sprout::darkroom::renderers::calculate<Color>(
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renderer,
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camera, objs, lights,
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sprout::tuples::remake<Ray>(
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ray,
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sprout::darkroom::rays::detach_position(sprout::darkroom::intersects::point_of_intersection(inter), new_dir),
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new_dir
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),
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depth_max - 1,
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sprout::tuples::remake<Refractions>(refracs, sprout::darkroom::materials::refraction(sprout::darkroom::intersects::material(inter)))
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//sprout::tuples::push_back(refracs, sprout::darkroom::materials::refraction(sprout::darkroom::intersects::material(inter)))
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),
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false
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)
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: sprout::tuples::make<Color>(0, 0, 0)
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;
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}
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public:
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template<
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typename Color,
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typename Camera, typename Objects, typename Lights,
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typename Ray, typename Intersection, typename Renderer
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typename Ray, typename Refractions, typename Intersection, typename Renderer
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>
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SPROUT_CONSTEXPR Color
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SPROUT_CONSTEXPR sprout::pair<Color, bool>
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operator()(
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Camera const& camera, Objects const& objs, Lights const& lights,
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Ray const& ray, Intersection const& inter, Renderer const& renderer,
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std::size_t depth_max
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std::size_t depth_max, Refractions const& refracs
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) const
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{
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typedef typename std::decay<
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@ -151,16 +177,18 @@ namespace sprout {
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? color_1<Color>(
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camera, objs, lights,
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ray, inter, renderer,
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depth_max,
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depth_max, refracs,
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sprout::darkroom::coords::refract(
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sprout::darkroom::rays::direction(ray),
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sprout::darkroom::intersects::normal(inter),
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sprout::darkroom::intersects::is_from_inside(inter)
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? 1 / sprout::darkroom::materials::refraction(sprout::darkroom::intersects::material(inter))
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? sprout::tuples::get<sprout::tuples::tuple_size<Refractions>::value - 1>(refracs)
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/ sprout::darkroom::materials::refraction(sprout::darkroom::intersects::material(inter))
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: sprout::darkroom::materials::refraction(sprout::darkroom::intersects::material(inter))
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/ sprout::tuples::get<sprout::tuples::tuple_size<Refractions>::value - 1>(refracs)
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)
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)
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: sprout::tuples::make<Color>(0, 0, 0)
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: sprout::pair<Color, bool>(sprout::tuples::make<Color>(0, 0, 0), false)
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;
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}
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};
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@ -174,11 +202,11 @@ namespace sprout {
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private:
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infinity_color_type infinity_color_;
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private:
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template<typename Color, typename Ray, typename Intersection>
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template<typename Color, typename Ray, typename Intersection, typename DiffuseColor, typename MirrorColor, typename TransparentColors>
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SPROUT_CONSTEXPR Color
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color_3(
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Ray const& ray, Intersection const& inter,
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Color const& diffuse_color, Color const& mirror_color, Color const& transparent_color
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DiffuseColor const& diffuse_color, MirrorColor const& mirror_color, TransparentColors const& transmit_colors
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) const
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{
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return sprout::darkroom::intersects::does_intersect(inter)
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@ -191,11 +219,16 @@ namespace sprout {
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),
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sprout::darkroom::colors::mul(
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mirror_color,
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sprout::darkroom::materials::reflection(sprout::darkroom::intersects::material(inter))
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!transmit_colors.second
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? sprout::darkroom::materials::reflection(sprout::darkroom::intersects::material(inter))
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: sprout::darkroom::materials::reflection(sprout::darkroom::intersects::material(inter))
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+ sprout::darkroom::materials::alpha(sprout::darkroom::intersects::material(inter))
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),
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sprout::darkroom::colors::mul(
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transparent_color,
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sprout::darkroom::materials::alpha(sprout::darkroom::intersects::material(inter))
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transmit_colors.first,
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!transmit_colors.second
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? sprout::darkroom::materials::alpha(sprout::darkroom::intersects::material(inter))
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: 0
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)
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)
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: sprout::darkroom::renderers::calculate_infinity<Color>(infinity_color_, sprout::darkroom::rays::direction(ray))
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@ -204,12 +237,12 @@ namespace sprout {
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template<
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typename Color,
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typename Camera, typename Objects, typename Lights,
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typename Ray, typename Intersection
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typename Ray, typename Refractions, typename Intersection
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>
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SPROUT_CONSTEXPR Color
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color_2(
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Camera const& camera, Objects const& objs, Lights const& lights,
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Ray const& ray, std::size_t depth_max, Intersection const& inter,
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Ray const& ray, std::size_t depth_max, Refractions const& refracs, Intersection const& inter,
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Color const& diffuse_color
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) const
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{
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@ -219,29 +252,29 @@ namespace sprout {
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sprout::darkroom::renderers::whitted_mirror().template operator()<Color>(
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camera, objs, lights,
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ray, inter, *this,
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depth_max
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depth_max, refracs
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),
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sprout::darkroom::renderers::whitted_transparent().template operator()<Color>(
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sprout::darkroom::renderers::whitted_transmit().template operator()<Color>(
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camera, objs, lights,
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ray, inter, *this,
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depth_max
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depth_max, refracs
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)
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);
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}
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template<
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typename Color,
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typename Camera, typename Objects, typename Lights,
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typename Ray, typename Intersection
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typename Ray, typename Refractions, typename Intersection
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>
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SPROUT_CONSTEXPR Color
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color_1(
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Camera const& camera, Objects const& objs, Lights const& lights,
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Ray const& ray, std::size_t depth_max, Intersection const& inter
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Ray const& ray, std::size_t depth_max, Refractions const& refracs, Intersection const& inter
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) const
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{
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return color_2<Color>(
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camera, objs, lights,
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ray, depth_max, inter,
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ray, depth_max, refracs, inter,
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sprout::darkroom::lights::calculate(lights, inter, objs)
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);
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}
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@ -253,6 +286,37 @@ namespace sprout {
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explicit SPROUT_CONSTEXPR whitted_style(infinity_color_type const& infinity_color)
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: infinity_color_(infinity_color)
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{}
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template<
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typename Color, typename Camera, typename Objects, typename Lights, typename Ray, typename Refractions,
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typename sprout::enabler_if<sprout::tuples::is_tuple<Refractions>::value>::type = sprout::enabler
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>
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SPROUT_CONSTEXPR Color
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operator()(
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Camera const& camera, Objects const& objs, Lights const& lights,
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Ray const& ray, std::size_t depth_max, Refractions const& refracs
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) const
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{
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return color_1<Color>(
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camera, objs, lights,
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ray, depth_max, refracs,
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sprout::darkroom::objects::intersect(objs, ray)
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);
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}
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template<
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typename Color, typename Camera, typename Objects, typename Lights, typename Ray, typename Refractions,
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typename sprout::enabler_if<!sprout::tuples::is_tuple<Refractions>::value>::type = sprout::enabler
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>
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SPROUT_CONSTEXPR Color
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operator()(
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Camera const& camera, Objects const& objs, Lights const& lights,
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Ray const& ray, std::size_t depth_max, Refractions const& refracs
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) const
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{
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return operator()<Color>(
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camera, objs, lights,
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ray, depth_max, sprout::tuples::make_tuple(refracs)
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);
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}
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template<typename Color, typename Camera, typename Objects, typename Lights, typename Ray>
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SPROUT_CONSTEXPR Color
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operator()(
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@ -260,10 +324,9 @@ namespace sprout {
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Ray const& ray, std::size_t depth_max
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) const
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{
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return color_1<Color>(
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return operator()<Color>(
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camera, objs, lights,
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ray, depth_max,
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sprout::darkroom::objects::intersect(objs, ray)
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ray, depth_max, sprout::tuples::make_tuple(1.0)
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);
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}
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};
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