OGLLight.cpp

Go to the documentation of this file.

/*
 * 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 "OGLLight.h"
 
#if _WIN32
    #include <windows.h>
#endif //_WIN32
 
#include <GL/gl.h>
 
#include "Tympan/models/common/3d.h"
 
OGLLight::OGLLight() {}
 
OGLLight::~OGLLight() {}
 
void OGLLight::drawLight(const int index, const OPoint3D& position, const float intensity) const
{
    // On modifie
    // float lightIntensity[4] = {intensity, intensity, intensity, 1};
    float lightIntensity[4] = {intensity, intensity, intensity, intensity};
    float lightPos[4] = {(float)position._x, (float)position._y, (float)position._z, .0};
    GLenum light = GL_LIGHT0;
    switch (index)
    {
        case 0:
            light = GL_LIGHT0;
            break;
        case 1:
            light = GL_LIGHT1;
            break;
        case 2:
            light = GL_LIGHT2;
            break;
        case 3:
            light = GL_LIGHT3;
            break;
        case 4:
            light = GL_LIGHT4;
            break;
        case 5:
            light = GL_LIGHT5;
            break;
    }
    glEnable(light);
    glLightfv(light, GL_DIFFUSE, lightIntensity);
    glLightfv(light, GL_POSITION, lightPos);
}