text: /***************************************************************************
   * Copyright 1998-2018 by authors (see AUTHORS.txt)                        *
   *                                                                         *
   *   This file is part of LuxCoreRender.                                   *
   *                                                                         *
   * Licensed under the Apache License, Version 2.0 (the "License");         *
   * you may not use this file except in compliance with the License.        *
   * You may obtain a copy of the License at                                 *
   *                                                                         *
   *     http://www.apache.org/licenses/LICENSE-2.0                          *
   *                                                                         *
   * Unless required by applicable law or agreed to in writing, software     *
   * distributed under the License is distributed on an "AS IS" BASIS,       *
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.*
   * See the License for the specific language governing permissions and     *
   * limitations under the License.                                          *
   ***************************************************************************/
  
  #ifndef _SLG_MATTETRANSLUCENTMAT_H
  #define	_SLG_MATTETRANSLUCENTMAT_H
  
  #include "slg/materials/material.h"
  
  namespace slg {
  
  //------------------------------------------------------------------------------
  // MatteTranslucent material
  //------------------------------------------------------------------------------
  
  class MatteTranslucentMaterial : public Material {
  public:
  	MatteTranslucentMaterial(const Texture *transp, const Texture *emitted, const Texture *bump,
  			const Texture *refl, const Texture *trans) : Material(transp, emitted, bump),
  			Kr(refl), Kt(trans) { }
  
  	virtual MaterialType GetType() const { return MATTETRANSLUCENT; }
  	virtual BSDFEvent GetEventTypes() const { return DIFFUSE | REFLECT | TRANSMIT; };
  
  	virtual luxrays::Spectrum Evaluate(const HitPoint &hitPoint,
  		const luxrays::Vector &localLightDir, const luxrays::Vector &localEyeDir, BSDFEvent *event,
  		float *directPdfW = NULL, float *reversePdfW = NULL) const;
  	virtual luxrays::Spectrum Sample(const HitPoint &hitPoint,
  		const luxrays::Vector &localFixedDir, luxrays::Vector *localSampledDir,
  		const float u0, const float u1, const float passThroughEvent,
  		float *pdfW, float *absCosSampledDir, BSDFEvent *event,
  		const BSDFEvent requestedEvent) const;
  	virtual void Pdf(const HitPoint &hitPoint,
  		const luxrays::Vector &localLightDir, const luxrays::Vector &localEyeDir,
  		float *directPdfW, float *reversePdfW) const;
  
  	virtual void AddReferencedTextures(boost::unordered_set<const Texture *> &referencedTexs) const;
  	virtual void UpdateTextureReferences(const Texture *oldTex, const Texture *newTex);
  
  	virtual luxrays::Properties ToProperties(const ImageMapCache &imgMapCache, const bool useRealFileName) const;
  
  	const Texture *GetKr() const { return Kr; }
  	const Texture *GetKt() const { return Kt; }
  
  private:
  	const Texture *Kr;
  	const Texture *Kt;
  };
  
  }
  
  #endif	/* _SLG_MATTETRANSLUCENTMAT_H */
  