DtFxOglParticleSystemRenderer.h

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


#pragma once
#include <diguyParticleSystem.h>

#include <vrvFx/vrvFx.h>
#include <vrvFx/DtFxGizmoRenderer.h>

namespace osg
{
   class Camera;
   class RenderInfo;
}

namespace makVrv
{
   class DtDe;
   class DtFxParticleDesc;
   struct DtFxParticleVertex;

   class DT_DLL_VRVFX DtFxOglParticleSystemRenderer : public diguyParticleSystemRenderer
   {
      // number of scratch buffers to support
      static const int BUFFER_COUNT = 6; // 1 main, 1 shadow map, 2 copying to driver, 2 rendering

   public:
      DtFxOglParticleSystemRenderer(DtDe& dtDe);

      virtual ~DtFxOglParticleSystemRenderer();

      virtual void releaseGLObjects(osg::State* state);

      virtual void setup_particle_rendering(int render_pass_flags) { ; }

      virtual void setup_particle_rendering(int render_pass_flags, osg::RenderInfo& renderInfo);

      virtual void end_particle_rendering(int render_pass_flags);

      // vrv helper
      virtual void updateProgramCache(osg::RenderInfo &renderInfo);

      virtual DtFxParticleVertex* getMemoryPointer(int datasize);

      virtual void unmapMemory();

      virtual void draw_particle_buffer(const diguyParticleDrawDesc* draw_desc, void* data) { ; }
      virtual void draw_particle_buffer(osg::RenderInfo& renderInfo, const diguyParticleDrawDesc* draw_desc, void* data);

      virtual void setCameraPos(double x, double y, double z);

      virtual bdiFarPosition& cameraPos();

      virtual DtFxGizmoRenderer& gizmoRenderer();

      virtual DtDe& de();

      virtual void setWireframeMode(bool mode);

   protected:
      bdiFarPosition myCameraPos;

      DtDe& myDe;
      DtFxGizmoRenderer myGizmoRenderer;
      bool myWireframeMode;

      unsigned int myVertexObject[BUFFER_COUNT];
      int myBufferSize[BUFFER_COUNT];
      int myCurrentVBOIndex;

      unsigned int myBillboardObject;
      unsigned int myBillboardZObject;
      unsigned int myBillboardXZObject;

      bdiVec3f myRotationVector;
      int myRenderPassFlags;

      const void* myLastProgram;
      const void* myLastParticleDesc;

      int myAttrVertex;
      int myAttrPositions;
      int myAttrColor;
      int myAttrNormal;
      int myAttrFrame;
      int myAttrAge;
      int myAttrSize;
      int myAttrRotation;
      int myAttrVelocity;

      int myUniformBasePosition;
      int myUniformUseTexture;
      int myUniformUseNormalTexture;
      int myUniformHdrGain;
      int myUniformEmissivityFactor;
      int myUniformMaterialSpecularity;
      int myUniformMaterialMetallicness;
      int myUniformXframes;
      int myUniformYframes;
      int myUniformVertCount;
      int myUniformRotationVector;
      int myUniformLightDirection;
      int myUniformLighting;
      int myUniformTranslucency;
      int myUniformSoftness;
      int myUniformAdditiveRendering;
   };

}