nuclear@25: #ifndef GEOMOBJ_H_
nuclear@25: #define GEOMOBJ_H_
nuclear@25: 
nuclear@25: #include "vmath/vmath.h"
nuclear@25: 
nuclear@25: class GeomObject;
nuclear@25: 
nuclear@25: struct HitPoint {
nuclear@25: 	float dist;				//< parametric distance along the ray
nuclear@25: 	Vector3 pos;			//< position of intersection (orig + dir * dist)
nuclear@25: 	Vector3 normal;			//< normal at the point of intersection
nuclear@25: 	const void *obj;		//< pointer to the intersected object
nuclear@25: };
nuclear@25: 
nuclear@25: class GeomObject {
nuclear@25: public:
nuclear@25: 	virtual ~GeomObject();
nuclear@25: 
nuclear@25: 	virtual void set_union(const GeomObject *obj1, const GeomObject *obj2) = 0;
nuclear@25: 	virtual void set_intersection(const GeomObject *obj1, const GeomObject *obj2) = 0;
nuclear@25: 
nuclear@25: 	virtual bool intersect(const Ray &ray, HitPoint *hit = 0) const = 0;
nuclear@25: };
nuclear@25: 
nuclear@25: class Sphere : public GeomObject {
nuclear@25: public:
nuclear@25: 	Vector3 center;
nuclear@25: 	float radius;
nuclear@25: 
nuclear@25: 	Sphere();
nuclear@25: 	Sphere(const Vector3 &center, float radius);
nuclear@25: 
nuclear@25: 	void set_union(const GeomObject *obj1, const GeomObject *obj2);
nuclear@25: 	void set_intersection(const GeomObject *obj1, const GeomObject *obj2);
nuclear@25: 
nuclear@25: 	bool intersect(const Ray &ray, HitPoint *hit = 0) const;
nuclear@25: };
nuclear@25: 
nuclear@25: class AABox : public GeomObject {
nuclear@25: public:
nuclear@25: 	Vector3 min, max;
nuclear@25: 
nuclear@25: 	AABox();
nuclear@25: 	AABox(const Vector3 &min, const Vector3 &max);
nuclear@25: 
nuclear@25: 	void set_union(const GeomObject *obj1, const GeomObject *obj2);
nuclear@25: 	void set_intersection(const GeomObject *obj1, const GeomObject *obj2);
nuclear@25: 
nuclear@25: 	bool intersect(const Ray &ray, HitPoint *hit = 0) const;
nuclear@25: };
nuclear@25: 
nuclear@25: class Plane : public GeomObject {
nuclear@25: public:
nuclear@25: 	Vector3 pt, normal;
nuclear@25: 
nuclear@25: 	Plane();
nuclear@25: 	Plane(const Vector3 &pt, const Vector3 &normal);
nuclear@25: 	Plane(const Vector3 &p1, const Vector3 &p2, const Vector3 &p3);
nuclear@25: 	Plane(const Vector3 &normal, float dist);
nuclear@25: 
nuclear@25: 	void set_union(const GeomObject *obj1, const GeomObject *obj2);
nuclear@25: 	void set_intersection(const GeomObject *obj1, const GeomObject *obj2);
nuclear@25: 
nuclear@25: 	bool intersect(const Ray &ray, HitPoint *hit = 0) const;
nuclear@25: };
nuclear@25: 
nuclear@25: #endif	// GEOMOBJ_H_