PBRT
/home/felix/UBC/projects/AdaptiveLightfieldSampling/pbrt_v2/src/integrators/ambientocclusion.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_INTEGRATORS_AMBIENTOCCLUSION_H
00037 #define PBRT_INTEGRATORS_AMBIENTOCCLUSION_H
00038 
00039 // integrators/ambientocclusion.h*
00040 #include "pbrt.h"
00041 #include "integrator.h"
00042 
00043 // AmbientOcclusionIntegrator Declarations
00044 class AmbientOcclusionIntegrator : public SurfaceIntegrator {
00045 public:
00046     AmbientOcclusionIntegrator(int ns, float md) { nSamples = RoundUpPow2(ns); maxDist = md; }
00047     Spectrum Li(const Scene *scene, const Renderer *renderer,
00048         const RayDifferential &ray, const Intersection &isect,
00049         const Sample *sample, RNG &rng, MemoryArena &arena) const;
00050 private:
00051     int nSamples;
00052     float maxDist;
00053 };
00054 
00055 
00056 
00057 AmbientOcclusionIntegrator *CreateAmbientOcclusionIntegrator(const ParamSet &params);
00058 
00059 #endif // PBRT_INTEGRATORS_AMBIENTOCCLUSION_H