DtSkyDrawable.h

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/*******************************************************************************
** Copyright (c) 2021 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/


#pragma once

#include <vrvOsg/vrvOsg.h>

#include <vrvCore/DtVirtualBaseClassCreator.h>

#include <osg/Drawable>

namespace SilverLining
{
   class Atmosphere;
   class ThreadCameraStreamData;
}

namespace osg
{
   class Camera;
   class GLExtensions;
}

namespace makVrv
{
   class DtSilverliningGroup;

   class DtSkyDrawable;

   typedef DtVirtualBaseClassCreator<DtSkyDrawable, DtSilverliningGroup*> DtSkyDrawableCreator;

   template <>
   inline const char* creatorTypeName<DtSkyDrawable>(void) { return "DtSkyDrawableCreator"; }

   class DT_DLL_VRVOSG DtSkyDrawable : public osg::Drawable
   {

   public:
      friend DtSkyDrawableCreator;

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

      virtual ~DtSkyDrawable();
   protected:
      
      DtSkyDrawable(DtDe& de, DtSilverliningGroup* parent);
   public:

      virtual osg::Object* cloneType() const { return nullptr; }
      virtual osg::Object* clone(const osg::CopyOp& copyop) const { return new DtSkyDrawable(*this, copyop); }

      virtual void setGeocentricMode(bool mode);

      virtual void setLensFlare(bool enabled);

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

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

      virtual void setSkyBoxSize(double size);

      virtual double getSkyBoxSize() const;

   protected:

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

      virtual void updateShaderSkyUserUniforms(
         const SilverLining::Atmosphere* atmosphere, const osg::Camera* camera,
         osg::State& state, SilverLining::ThreadCameraStreamData* tcsData) const;

   protected:

      DtSilverliningGroup* myParent;
      bool myGeocentricFlag;
      double myBoxSize;
      bool myLensFlareFlag;

      DtDe& myDe;
   };
}