EffectMapTerrainEffect.h

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/******************************************************************************
** Copyright(c) 2020 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/

#ifndef OSGEARTH_EFFECTMAP_TERRAIN_EFFECT_H
#define OSGEARTH_EFFECTMAP_TERRAIN_EFFECT_H

#include <osgEarth/TerrainEffect>
#include <osgEarth/ImageLayer>
#include <osg/Image>
#include <osg/Uniform>
#include <osg/Texture2D>

#include <osgdb_osgearth_effectmap/EffectMapOptions.h>

using namespace osgEarth;


namespace osgEarth
{
   namespace EffectMap
   {
      class EffectMapTerrainEffect : public TerrainEffect
      {
      public:
         EffectMapTerrainEffect(const osgDB::Options* dbOptions, int effectMapId, const EffectMapOptions& effectMapOptions);

      protected:
         virtual ~EffectMapTerrainEffect() { }

      public: // TerrainEffect interface
         void onInstall(TerrainEngineNode* engine);

         void onUninstall(TerrainEngineNode* engine);

      protected:
         virtual std::string generateShareTexUniformNameShaderString();

         virtual std::string generateShareTexMatUniformNameShaderString();

         virtual std::string generateEffectMapFragShaderString();

      protected:
         std::string myFragmentName;
         unsigned int myEffectMapId;
         EffectMapOptions::EffectType myEffectType;
         float myFadeMaxRange;
         float myFadeAttenuationDistance;
         float mySpecMapShininess;
      };

   } // namespace osgEarth:EffectMap
}

#endif // OSGEARTH_EFFECTMAP_TERRAIN_EFFECT_H