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.net * 00021 ***************************************************************************/ 00022 00023 // paraboloid.cpp* 00024 #include "shape.h" 00025 00026 namespace lux 00027 { 00028 00029 // Paraboloid Declarations 00030 class Paraboloid: public Shape { 00031 public: 00032 // Paraboloid Public Methods 00033 Paraboloid(const Transform &o2w, bool ro, float rad, 00034 float z0, float z1, float tm ); 00035 virtual ~Paraboloid() { } 00036 virtual BBox ObjectBound() const; 00037 virtual bool Intersect(const Ray &ray, float *tHit, 00038 DifferentialGeometry *dg) const; 00039 virtual bool IntersectP(const Ray &ray) const; 00040 virtual float Area() const; 00041 00042 static Shape* CreateShape(const Transform &o2w, bool reverseOrientation, const ParamSet ¶ms); 00043 protected: 00044 // Paraboloid Data 00045 float radius; 00046 float zmin, zmax; 00047 float phiMax; 00048 }; 00049 00050 }//namespace lux