36 lines
684 B
C++
36 lines
684 B
C++
#ifndef RAY_H
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#define RAY_H
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#include "vec3.h"
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class ray {
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private:
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point3 orig;
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vec3 dir;
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double tm;
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public:
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ray() {}
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ray(const point3& origin, const vec3& direction) : orig(origin), dir(direction) {}
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ray(const point3& origin, const vec3& direction, double time) : orig(origin), dir(direction), tm(time) {}
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const point3& origin() const {
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return orig;
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}
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const vec3& direction() const {
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return dir;
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}
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double time() const {
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return tm;
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}
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point3 at(double t) const {
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return orig + t * dir;
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}
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};
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#endif |