PBRT
/home/felix/UBC/projects/AdaptiveLightfieldSampling/pbrt_v2/src/materials/subsurface.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_MATERIALS_SUBSURFACE_H
00037 #define PBRT_MATERIALS_SUBSURFACE_H
00038 
00039 // materials/subsurface.h*
00040 #include "pbrt.h"
00041 #include "material.h"
00042 
00043 // SubsurfaceMaterial Declarations
00044 class SubsurfaceMaterial : public Material {
00045 public:
00046     // SubsurfaceMaterial Public Methods
00047     SubsurfaceMaterial(float sc, Reference<Texture<Spectrum> > kr,
00048             Reference<Texture<Spectrum> > sa,
00049             Reference<Texture<Spectrum> > sps,
00050             Reference<Texture<float> > e,
00051             Reference<Texture<float> > bump) {
00052         scale = sc;
00053         Kr = kr;
00054         sigma_a = sa;
00055         sigma_prime_s = sps;
00056         eta = e;
00057         bumpMap = bump;
00058     }
00059     BSDF *GetBSDF(const DifferentialGeometry &dgGeom,
00060                   const DifferentialGeometry &dgShading,
00061                   MemoryArena &arena) const;
00062     BSSRDF *GetBSSRDF(const DifferentialGeometry &dgGeom,
00063                       const DifferentialGeometry &dgShading,
00064                       MemoryArena &arena) const;
00065 private:
00066     // SubsurfaceMaterial Private Data
00067     float scale;
00068     Reference<Texture<Spectrum> > Kr, sigma_a, sigma_prime_s;
00069     Reference<Texture<float> > eta, bumpMap;
00070 };
00071 
00072 
00073 SubsurfaceMaterial *CreateSubsurfaceMaterial(const Transform &xform,
00074         const TextureParams &mp);
00075 
00076 #endif // PBRT_MATERIALS_SUBSURFACE_H