42 lines
1.2 KiB
C++
42 lines
1.2 KiB
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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}
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void SmoothTriangle::dumpMe(FILE *fp)
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{
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Tuple t = this->n1;
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fprintf(fp, "\"n1\": { \"x\": %f, \"y\": %f, \"z\": %f}, \n",
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t.x, t.y, t.z);
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t = this->n2;
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fprintf(fp, "\"n2\": { \"x\": %f, \"y\": %f, \"z\": %f}, \n",
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t.x, t.y, t.z);
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t = this->n3;
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fprintf(fp, "\"n3\": { \"x\": %f, \"y\": %f, \"z\": %f}, \n",
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t.x, t.y, t.z);
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Triangle::dumpMe(fp);
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} |