46 lines
855 B
C++
46 lines
855 B
C++
/*
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* DoRayMe - a quick and dirty Raytracer
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* Plane implementation
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*
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* Created by Manoël Trapier
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* Copyright (c) 2020 986-Studio.
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*
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*/
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#include <tuple.h>
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#include <ray.h>
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#include <shape.h>
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#include <plane.h>
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#include <math_helper.h>
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Intersect Plane::localIntersect(Ray r)
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{
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double t;
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Intersect ret = Intersect();
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if (fabs(r.direction.y) < getEpsilon())
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{
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/* With a direction == 0, the ray can't intersect the plane */
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return ret;
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}
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t = -r.origin.y / r.direction.y;
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ret.add(Intersection(t, this));
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return ret;
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}
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Tuple Plane::localNormalAt(Tuple point, Intersection *hit)
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{
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return Vector(0, 1, 0);
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}
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BoundingBox Plane::getLocalBounds()
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{
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BoundingBox ret;
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ret | Point(-INFINITY, 0-getEpsilon(), -INFINITY);
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ret | Point(INFINITY, 0+getEpsilon(), INFINITY);
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return ret;
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} |