PBRT
/home/felix/UBC/projects/AdaptiveLightfieldSampling/pbrt_v2/src/renderers/surfacepoints.h
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 &params,
00082     const Point &pCamera, float time);
00083 
00084 #endif // PBRT_RENDERERS_SURFACEPOINTS_H