ray.h
上传用户:center1979
上传日期:2022-07-26
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文件大小:1k
- // ray.h
- //
- // Copyright (C) 2002, Chris Laurel <claurel@shatters.net>
- //
- // This program is free software; you can redistribute it and/or
- // modify it under the terms of the GNU General Public License
- // as published by the Free Software Foundation; either version 2
- // of the License, or (at your option) any later version.
- #ifndef _CELMATH_RAY_H_
- #define _CELMATH_RAY_H_
- #include "vecmath.h"
- template<class T> class Ray3
- {
- public:
- Ray3();
- Ray3(const Point3<T>&, const Vector3<T>&);
-
- Point3<T> point(T) const;
-
- public:
- Point3<T> origin;
- Vector3<T> direction;
- };
- typedef Ray3<float> Ray3f;
- typedef Ray3<double> Ray3d;
- template<class T> Ray3<T>::Ray3() :
- origin(0, 0, 0), direction(0, 0, -1)
- {
- }
- template<class T> Ray3<T>::Ray3(const Point3<T>& _origin,
- const Vector3<T>& _direction) :
- origin(_origin), direction(_direction)
- {
- }
- template<class T> Point3<T> Ray3<T>::point(T t) const
- {
- return origin + direction * t;
- }
- template<class T> Ray3<T> operator*(const Ray3<T>& r, const Matrix3<T>& m)
- {
- return Ray3<T>(r.origin * m, r.direction * m);
- }
- template<class T> Ray3<T> operator*(const Ray3<T>& r, const Matrix4<T>& m)
- {
- return Ray3<T>(r.origin * m, r.direction * m);
- }
- #endif // _CELMATH_RAY_H_