61 lines
1.3 KiB
C++
61 lines
1.3 KiB
C++
// ray.h
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//
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// Copyright (C) 2002, Chris Laurel <claurel@shatters.net>
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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#ifndef _CELMATH_RAY_H_
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#define _CELMATH_RAY_H_
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#include "vecmath.h"
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template<class T> class Ray3
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{
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public:
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Ray3();
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Ray3(const Point3<T>&, const Vector3<T>&);
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Point3<T> point(T) const;
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public:
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Point3<T> origin;
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Vector3<T> direction;
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};
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typedef Ray3<float> Ray3f;
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typedef Ray3<double> Ray3d;
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template<class T> Ray3<T>::Ray3() :
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origin(0, 0, 0), direction(0, 0, -1)
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{
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}
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template<class T> Ray3<T>::Ray3(const Point3<T>& _origin,
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const Vector3<T>& _direction) :
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origin(_origin), direction(_direction)
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{
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}
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template<class T> Point3<T> Ray3<T>::point(T t) const
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{
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return origin + direction * t;
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}
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template<class T> Ray3<T> operator*(const Ray3<T>& r, const Matrix3<T>& m)
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{
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return Ray3<T>(r.origin * m, r.direction * m);
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}
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template<class T> Ray3<T> operator*(const Ray3<T>& r, const Matrix4<T>& m)
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{
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return Ray3<T>(r.origin * m, r.direction * m);
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}
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#endif // _CELMATH_RAY_H_
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