PBRT
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00001 00002 /* 00003 pbrt source code Copyright(c) 1998-2012 Matt Pharr and Greg Humphreys. 00004 00005 This file is part of pbrt. 00006 00007 Redistribution and use in source and binary forms, with or without 00008 modification, are permitted provided that the following conditions are 00009 met: 00010 00011 - Redistributions of source code must retain the above copyright 00012 notice, this list of conditions and the following disclaimer. 00013 00014 - Redistributions in binary form must reproduce the above copyright 00015 notice, this list of conditions and the following disclaimer in the 00016 documentation and/or other materials provided with the distribution. 00017 00018 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 00019 IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 00020 TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00021 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 00022 HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00023 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00024 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00025 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00026 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00027 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00028 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00029 00030 */ 00031 00032 #if defined(_MSC_VER) 00033 #pragma once 00034 #endif 00035 00036 #ifndef PBRT_RENDERERS_SURFACEPOINTS_H 00037 #define PBRT_RENDERERS_SURFACEPOINTS_H 00038 00039 // renderers/surfacepoints.h* 00040 #include "pbrt.h" 00041 #include "geometry.h" 00042 #include "renderer.h" 00043 00044 // SurfacePointsRenderer Declarations 00045 struct SurfacePoint { 00046 SurfacePoint() { } 00047 SurfacePoint(const Point &pp, const Normal &nn, float a, float eps) 00048 : p(pp), n(nn), area(a), rayEpsilon(eps) { } 00049 // SurfacePoint Data 00050 Point p; 00051 Normal n; 00052 float area, rayEpsilon; 00053 }; 00054 00055 00056 class SurfacePointsRenderer : public Renderer { 00057 public: 00058 // SurfacePointsRenderer Public Methods 00059 SurfacePointsRenderer(float md, const Point &pc, float t, 00060 const string &fn) 00061 : minDist(md), time(t), pCamera(pc), filename(fn) { } 00062 void Render(const Scene *scene); 00063 Spectrum Li(const Scene *scene, const RayDifferential &ray, 00064 const Sample *sample, RNG &rng, MemoryArena &arena, 00065 Intersection *isect, Spectrum *T) const; 00066 Spectrum Transmittance(const Scene *scene, const RayDifferential &ray, 00067 const Sample *sample, RNG &rng, MemoryArena &arena) const; 00068 private: 00069 // SurfacePointsRenderer Private Data 00070 float minDist, time; 00071 Point pCamera; 00072 string filename; 00073 friend void FindPoissonPointDistribution(const Point &pCamera, float time, 00074 float minDist, const Scene *scene, vector<SurfacePoint> *points); 00075 vector<SurfacePoint> points; 00076 }; 00077 00078 00079 void FindPoissonPointDistribution(const Point &pCamera, float time, float minDist, 00080 const Scene *scene, vector<SurfacePoint> *points); 00081 SurfacePointsRenderer *CreateSurfacePointsRenderer(const ParamSet ¶ms, 00082 const Point &pCamera, float time); 00083 00084 #endif // PBRT_RENDERERS_SURFACEPOINTS_H