SpecularReflexion.cpp

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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.
 */
 
#include "SpecularReflexion.h"
#include "Geometry/Shape.h"
 
bool SpecularReflexion::getResponse(vec3& r, bool force)
{
    nbResponseLeft--;
    if (nbResponseLeft < 0)
    {
        return false;
    }
 
    r = from - shape->getNormal() * 2.0 * from.dot(shape->getNormal());
    return true;
}
 
double SpecularReflexion::getAngle()
{
    double angle = from.angle(shape->getNormal() * -1.0);
    return angle;
}