DtSkyDrawable.h

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/*******************************************************************************
** Copyright (c) 2019 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/


#pragma once

#include <vrvOsg/vrvOsg.h>
#include <vrvUtil/DtVirtualBaseClass.h>
#include <osg/Drawable>

namespace SilverLining
{
   class Atmosphere;
}

namespace osg
{
   class Camera;
   class GLExtensions;
}

namespace makVrv
{
   class DtSilverliningGroup;

   class DT_DLL_VRVOSG DtSkyDrawable : public osg::Drawable
   {

   public:

      friend class DtSkyDrawableCreator;

      DtSkyDrawable(const DtSkyDrawable& copy, const osg::CopyOp& copyop);

      virtual ~DtSkyDrawable();

      META_Object(vrvOsg, DtSkyDrawable)

         
         void setGeocentricMode(bool mode);

      void setLensFlare(bool enabled);

      virtual void drawImplementation(osg::RenderInfo& renderInfo) const;

      virtual void releaseGLObjects(osg::State* state = 0) const;

      void setSkyBoxSize(double size);

      double getSkyBoxSize() const;

   protected:

      DtSkyDrawable(DtSilverliningGroup* parent = 0);

      void updateSensorFXUniforms(const SilverLining::Atmosphere* atmosphere, const osg::Camera* camera, osg::State& state) const;

   protected:

      DtSilverliningGroup* myParent;
      bool myGeocentricFlag;
      osg::Vec4f myFogColor;
      float myFogDensity;
      double myBoxSize;
      bool myLensFlareFlag;
   };

   class DT_DLL_VRVOSG DtSkyDrawableCreator : public DtVirtualBaseClass
   {
   public:

      static DtSkyDrawableCreator& instance(DtDe& de);

      static void registerInstance(DtDe& de, DtSkyDrawableCreator* anInstance);

      virtual DtSkyDrawable* create(DtSilverliningGroup* parent);
   };

}