sprout/darkroom/* 追加

sprout/darkroom/tracers/raytracer.hpp

@@ -0,0 +1,54 @@
+#ifndef SPROUT_DARKROOM_TRACERS_RAYTRACER_HPP
+#define SPROUT_DARKROOM_TRACERS_RAYTRACER_HPP
+
+#include <cstddef>
+#include <sprout/config.hpp>
+#include <sprout/darkroom/colors/rgb.hpp>
+
+namespace sprout {
+	namespace darkroom {
+		namespace tracers {
+			//
+			// raytracer
+			//
+			template<typename Color = sprout::darkroom::colors::rgb_f>
+			class raytracer {
+			public:
+				typedef Color color_type;
+			public:
+				template<
+					typename Renderer,
+					typename Camera,
+					typename Objects,
+					typename Lights,
+					typename Unit
+				>
+				SPROUT_CONSTEXPR color_type operator()(
+					Renderer const& renderer,
+					Camera const& camera,
+					Objects const& objs,
+					Lights const& lights,
+					Unit const& x,
+					Unit const& y,
+					Unit const& width,
+					Unit const& height,
+					std::size_t depth_max = 8
+					) const
+				{
+					return renderer.template operator()<color_type>(
+						camera,
+						objs,
+						lights,
+						camera.template operator()(
+							static_cast<typename Camera::unit_type>(x) / width - 0.5,
+							static_cast<typename Camera::unit_type>(y) / height - 0.5
+							),
+						depth_max
+						);
+				}
+			};
+		}	// namespace tracers
+	}	// namespace darkroom
+}	// namespace sprout
+
+#endif	// #ifndef SPROUT_DARKROOM_TRACERS_RAYTRACER_HPP