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 #include "shape.h" 00024 00025 namespace lux 00026 { 00027 00028 class LensComponent : public Shape { 00029 public: 00030 LensComponent(const Transform &o2w, bool ro, float rad, 00031 float zmin, float zmax, float phiMax, float aperture); 00032 // LensComponent public data 00033 BBox ObjectBound() const; 00034 bool Intersect(const Ray &ray, float *tHit, 00035 DifferentialGeometry *dg) const; 00036 bool IntersectP(const Ray &ray) const; 00037 float Area() const; 00038 Point Sample(float u1, float u2, Normal *n) const; 00039 00040 static Shape* CreateShape(const Transform &o2w, 00041 bool reverseOrientation, 00042 const ParamSet ¶ms); 00043 00044 private: 00045 // LensComponent Private Data 00046 float apRadius; 00047 float radius; 00048 float phiMax; 00049 float zmin, zmax; 00050 float thetaMin, thetaMax; 00051 }; 00052 00053 }//namespace lux 00054