30 lines
840 B
C++
30 lines
840 B
C++
//
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// Created by LEI XU on 5/16/19.
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//
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#ifndef RAYTRACING_RAY_H
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#define RAYTRACING_RAY_H
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#include "Vector.hpp"
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struct Ray{
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//Destination = origin + t*direction
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Vector3f origin;
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Vector3f direction, direction_inv;
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double t;//transportation time,
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double t_min, t_max;
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Ray(const Vector3f& ori, const Vector3f& dir, const double _t = 0.0): origin(ori), direction(dir),t(_t) {
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direction_inv = Vector3f(1./direction.x, 1./direction.y, 1./direction.z);
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t_min = 0.0;
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t_max = std::numeric_limits<double>::max();
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}
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Vector3f operator()(double t) const{return origin+direction*t;}
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friend std::ostream &operator<<(std::ostream& os, const Ray& r){
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os<<"[origin:="<<r.origin<<", direction="<<r.direction<<", time="<< r.t<<"]\n";
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return os;
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}
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};
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#endif //RAYTRACING_RAY_H
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