00001 /*************************************************************************** 00002 * Copyright (C) 1998-2008 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.net * 00021 ***************************************************************************/ 00022 00023 // lowdiscrepancypx.cpp* 00024 #include "sampling.h" 00025 #include "paramset.h" 00026 #include "film.h" 00027 00028 namespace lux 00029 { 00030 00031 // LowdiscrepancyPixelSampler Declarations 00032 class LowdiscrepancyPixelSampler : public PixelSampler { 00033 public: 00034 // LowdiscrepancyPixelSampler Public Methods 00035 LowdiscrepancyPixelSampler(int xstart, int xend, 00036 int ystart, int yend); 00037 ~LowdiscrepancyPixelSampler() { 00038 } 00039 00040 u_int GetTotalPixels(); 00041 bool GetNextPixel(int &xPos, int &yPos, u_int *use_pos); 00042 00043 private: 00044 // LowdiscrepancyPixelSampler Private Data 00045 u_int TotalPx; 00046 // Dade - number of pixel already returned by GetNextPixel() 00047 u_int pixelCounter; 00048 00049 int xPixelStart, yPixelStart, xPixelEnd, yPixelEnd; 00050 u_int xSeed, ySeed; 00051 }; 00052 00053 }//namespace lux