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CryCommon/CRETriMeshShadow.h

@@ -0,0 +1,68 @@
+
+#ifndef __CRETRIMESHSHADOW_H__
+#define __CRETRIMESHSHADOW_H__
+
+//=============================================================
+#define MAX_SV_INSTANCES	32
+
+//=============================================================
+struct	ItShadowVolume;
+class		CDLight;
+
+class CRETriMeshShadow : public CRendElement
+{
+public:
+
+  CRETriMeshShadow()
+  {
+    mfSetType(eDATA_TriMeshShadow);
+    mfUpdateFlags(FCEF_TRANSFORM | FCEF_NODEL);
+    memset(m_arrLBuffers,0,sizeof(m_arrLBuffers));
+		m_pSvObj=NULL;						
+    m_nCurrInst=0;
+    m_nRendIndices = 0;
+    m_bAnimatedObject = false;
+  }
+
+  virtual ~CRETriMeshShadow();
+
+  virtual void mfPrepare();
+  virtual bool mfDraw(SShader *ef, SShaderPass *sfm);
+  virtual void * mfGetPointer(ESrcPointer ePT, int *Stride, int Type, ESrcPointer Dst, int Flags);
+  virtual bool mfCheckUpdate(int nVertFormat, int Flags);
+  virtual bool mfCheckUnload();
+
+  //! shadow volume info
+  struct ShadVolInstanceInfo
+  {
+    ShadVolInstanceInfo() { memset(this,0,sizeof(*this)); }
+    CLeafBuffer * pVB;
+    int nFrameId;
+    Vec3 vObjSpaceLightPos;
+    IEntityRender * pLightOwner;
+    IEntityRender * pShadowCaster;
+  };
+
+  //! array of ready shadow volumes
+  ShadVolInstanceInfo m_arrLBuffers[MAX_SV_INSTANCES]; // stores shadow volumes
+  int m_nCurrInst; // used to pass selected slot from mfCheckUpdate to mfDraw
+  int m_nRendIndices;
+
+  bool m_bAnimatedObject;
+
+	//! vertex buffer data set by shadowvolobject	
+
+	ItShadowVolume	*m_pSvObj;
+
+  static int GetAndResetRebuildsPerFrrameCounter();
+  static int GetAndResetShadowVolumesPerFrrameCounter();
+  static int GetShadowVolumesAllocatedCounter();
+  static void PrintStats();
+
+private:	
+  static int m_nCRETriMeshShadowRebuildsPerFrrame;
+  static int m_nCRETriMeshShadowShadowsPerFrrame;
+  static int m_nCRETriMeshShadowAloocatedShadows;
+};
+
+#endif  // __CRETRIMESHSHADOW_H__