28 lines
798 B
C++
28 lines
798 B
C++
/*
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* DoRayMe - a quick and dirty Raytracer
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* Smooth Triangle 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 <ray.h>
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#include <shape.h>
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#include <triangle.h>
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#include <smoothtriangle.h>
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#include <math_helper.h>
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#include <renderstat.h>
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SmoothTriangle::SmoothTriangle(Point p1, Point p2, Point p3, Vector n1, Vector n2, Vector n3) : Triangle(p1, p2, p3),
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n1(n1), n2(n2), n3(n3)
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{
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this->type = SHAPE_SMOOTHTRIANGLE;
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stats.addSmoothTriangle();
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}
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Tuple SmoothTriangle::localNormalAt(Tuple point, Intersection *hit)
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{
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return (this->n2 * hit->u +
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this->n3 * hit->v +
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this->n1 * (1 - hit->u - hit->v)).normalise();
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} |