include/vrvGraphics/DtProjected2DLineEffect.h

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/******************************************************************************
** Copyright (c) 2010 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/
/******************************************************************************
** $RCSfile:  $ $Revision:  $ $State:  $
******************************************************************************/


#pragma once

#include <vrvGraphics/Dt2DEffect.h>

namespace makVrv
{
   class DT_DLL_VRVGRAPHICS DtProjected2DLineEffect : public Dt2DEffect
   {
   public:

      DtProjected2DLineEffect();

      virtual ~DtProjected2DLineEffect();

      virtual void setCamera(bool geocentric, float geocentricAlpha,
         const double position[3],const double projection[16]);

      //Set the number of groups.
      virtual void setGroupCount(unsigned int count);

      virtual void setVaryingAttributes( size_t stride,
         const VaryingAttributeAddress& positionAddress,
         const VaryingAttributeAddress& colorAddress,
         const VaryingAttributeAddress& offsetAddress,
         const VaryingAttributeAddress& directionAndLengthAddress );

      virtual void unsetVaryingAttributes();

   protected:

      virtual void updateUniformLocations();
      virtual void updateUniforms();
      virtual void getShaderSource(const char*& vs,const char*& fs,const char*& gs);

   protected:   
      int myUniform_CameraPos;   
      int myUniform_CameraMat;
      int myUniform_GroupCount;
      int myUniform_Sphere;
      int myUniform_OccludedAlpha;


      unsigned int myUnit;
      unsigned int myGroupCount;
      double myCameraPos[3];
      double myMatrix[16];
      bool myGeocentricFlag;
      float myGeocentricAlpha;
   };


   class DT_DLL_VRVGRAPHICS DtProjected2DLineEffectCreator : public DtEffectCreator
   {
   public:

      virtual DtEffect* create(CreateParameters* params = 0)
      {
         return new DtProjected2DLineEffect();
      }
   };
}