00001 /*************************************************************************** 00002 * Copyright (C) 1998-2009 by authors (see AUTHORS.txt ) * 00003 * * 00004 * This file is part of LuxRender. * 00005 * * 00006 * Lux Renderer is free software; you can redistribute it and/or modify * 00007 * it under the terms of the GNU General Public License as published by * 00008 * the Free Software Foundation; either version 3 of the License, or * 00009 * (at your option) any later version. * 00010 * * 00011 * Lux Renderer is distributed in the hope that it will be useful, * 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00014 * GNU General Public License for more details. * 00015 * * 00016 * You should have received a copy of the GNU General Public License * 00017 * along with this program. If not, see <http://www.gnu.org/licenses/>. * 00018 * * 00019 * This project is based on PBRT ; see http://www.pbrt.org * 00020 * Lux Renderer website : http://www.luxrender.org * 00021 ***************************************************************************/ 00022 00023 #ifndef LUX_EQUALSPD_H 00024 #define LUX_EQUALSPD_H 00025 // equalspd.h* 00026 #include "lux.h" 00027 #include "color.h" 00028 #include "spectrum.h" 00029 #include "spd.h" 00030 00031 // Equal energy SPD 00032 00033 #define EQ_CACHE_START 380. // precomputed cache starts at wavelength, 00034 #define EQ_CACHE_END 720. // and ends at wavelength 00035 #define EQ_CACHE_SAMPLES 2 // total number of cache samples 00036 00037 namespace lux 00038 { 00039 00040 class EqualSPD : public SPD { 00041 public: 00042 EqualSPD() : SPD() { 00043 init(1.f); 00044 } 00045 00046 EqualSPD(float p) : SPD() { 00047 init(p); 00048 } 00049 00050 virtual ~EqualSPD() { 00051 } 00052 00053 void init(float p); 00054 00055 protected: 00056 float power; 00057 00058 }; 00059 00060 }//namespace lux 00061 00062 #endif // LUX_EQUALSPD_H 00063