00001 00002 /* 00003 pbrt source code Copyright(c) 1998-2010 Matt Pharr and Greg Humphreys. 00004 00005 This file is part of pbrt. 00006 00007 pbrt is free software; you can redistribute it and/or modify 00008 it under the terms of the GNU General Public License as published by 00009 the Free Software Foundation; either version 2 of the License, or 00010 (at your option) any later version. Note that the text contents of 00011 the book "Physically Based Rendering" are *not* licensed under the 00012 GNU GPL. 00013 00014 pbrt is distributed in the hope that it will be useful, 00015 but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00017 GNU General Public License for more details. 00018 00019 You should have received a copy of the GNU General Public License 00020 along with this program. If not, see <http://www.gnu.org/licenses/>. 00021 00022 */ 00023 00024 #if defined(_MSC_VER) 00025 #pragma once 00026 #endif 00027 00028 #ifndef PBRT_SHAPES_HEIGHTFIELD_H 00029 #define PBRT_SHAPES_HEIGHTFIELD_H 00030 00031 // shapes/heightfield.h* 00032 #include "shape.h" 00033 00034 // Heightfield Declarations 00035 class Heightfield : public Shape { 00036 public: 00037 // Heightfield Public Methods 00038 Heightfield(const Transform *o2, const Transform *w2o, bool ro, int nu, int nv, const float *zs); 00039 ~Heightfield(); 00040 bool CanIntersect() const; 00041 void Refine(vector<Reference<Shape> > &refined) const; 00042 BBox ObjectBound() const; 00043 private: 00044 // Heightfield Private Data 00045 float *z; 00046 int nx, ny; 00047 }; 00048 00049 00050 Heightfield *CreateHeightfieldShape(const Transform *o2w, const Transform *w2o, 00051 bool reverseOrientation, const ParamSet ¶ms); 00052 00053 #endif // PBRT_SHAPES_HEIGHTFIELD_H