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#define __RAY_H__
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#define __RAY_H__
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#include "../CGLA/Vec3i.h"
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#include "../CGLA/Vec3i.h"
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#include "../CGLA/Vec3f.h"
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#include "../CGLA/Vec3f.h"
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#include "TriMesh.h"
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#include "TriMesh.h"
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#include "Material.h"
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namespace Geometry
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namespace Geometry
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{
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{
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		const double d_eps = 1.0e-12;
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    const double d_eps = 1.0e-12;
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		const float f_eps = 1.0e-6f;
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    const float f_eps = 1.0e-6f;
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		{
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    {
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				// Constructor
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        // Constructor
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				Ray()
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        Ray()
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						: origin(0.0f), direction(0.0f), hit_pos(0.0f), hit_normal(0.0f),
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          : origin(0.0f), direction(0.0f), hit_pos(0.0f), hit_normal(0.0f),
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        has_hit(false), dist(CGLA::BIG), ior(1.0f), u(0.0f), v(0.0f),
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            has_hit(false), dist(CGLA::BIG), ior(1.0f), u(0.0f), v(0.0f),
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				hit_object(0)
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            hit_object(0), trace_depth(0)
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						{ }
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        { }
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				Ray(const CGLA::Vec3f& _origin, const CGLA::Vec3f& _direction)
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        Ray(const CGLA::Vec3f& _origin, const CGLA::Vec3f& _direction)
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						: origin(_origin), direction(_direction), hit_pos(0.0f), hit_normal(0.0f),
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          : origin(_origin), direction(_direction), hit_pos(0.0f), hit_normal(0.0f),
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        has_hit(false), dist(CGLA::BIG), ior(1.0f), u(0.0f), v(0.0f),
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            has_hit(false), dist(CGLA::BIG), ior(1.0f), u(0.0f), v(0.0f),
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				hit_object(0)
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            hit_object(0), trace_depth(0)
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						{ }
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        { }
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				CGLA::Vec3f origin;
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        CGLA::Vec3f origin;
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				CGLA::Vec3f direction;
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        CGLA::Vec3f direction;
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				CGLA::Vec3f hit_pos;
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        CGLA::Vec3f hit_pos;
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				int trace_depth;  // Current recursion number
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        int trace_depth;  // Current recursion number
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				size_t hit_face_id;
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        size_t hit_face_id;
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				int id;
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        int id;
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				const Geometry::TriMesh* hit_object;
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        const TriMesh* hit_object;
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        const Material* get_hit_material() const
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        {
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          if(!hit_object)
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            return 0;
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          return &hit_object->materials[hit_object->mat_idx[hit_face_id]];
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        }
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				void reset()
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        void reset()
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						{
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        {
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								dist = CGLA::BIG;
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            dist = CGLA::BIG;
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								hit_object = 0;
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            hit_object = 0;
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								else
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            else
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										// Total internal reflection.
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                // Total internal reflection.
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										reflect(normal);
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                reflect(normal);
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						}
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        }
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				bool cond_set_parameter(float t, float _u, float _v,
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        bool cond_set_parameter(float t, float _u, float _v, Geometry::TriMesh* mesh, size_t idx)
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																Geometry::TriMesh* mesh, size_t idx)
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						{
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        {
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								if(t < dist)
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            if(t < dist)
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								{
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            {
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										dist = t;
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                dist = t;
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										u = _u;
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                u = _u;