Triangle.h

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/*
 * Copyright (C) <2012> <EDF-R&D> <FRANCE>
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#ifndef TRIANGLE_H
#define TRIANGLE_H
 
#include "Shape.h"
 
class Triangle : public Shape
{
 
public:
    Triangle()
    {
        name = "unknown triangle";
    };
    Triangle(unsigned int p1, unsigned int p2, unsigned int p3, std::vector<vec3>* _vertices, Material* _m,
             const bool& isSol = false);
    Triangle(const vec3& p1, const vec3& p2, const vec3& p3, Material* m, const bool& isSol = false);
    Triangle(const Triangle& other) : Shape(other)
    {
        box = other.box;
    };
    virtual ~Triangle() {}
 
    virtual void updateBBox();
 
    virtual bool getIntersection(Ray& ray, Intersection& inter);
 
    void setNormal(const vec3& _normal)
    {
        normal = _normal;
    }
    virtual vec3 getNormal(const vec3 pos = vec3())
    {
        return normal;
    }
 
    virtual bool sample(decimal density, std::vector<vec3>& samples);
 
    virtual int form()
    {
        return TRIANGLE;
    }
 
protected:
    vec3 p; 
    vec3 u; 
    vec3 v; 
 
    vec3 normal; 
};
 
#endif