raGroupe.h

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#pragma once

#define MAX_INSTANCES 500

    class RAPI raGroup : public raVisual
    {
    public:
        raGroup(raSmartPointer<raDirectX> dx, IRAMesh *pVisual, int numInstancesToDraw = 0,
            bool bAlpha = false, bool bAdditive = false, bool bDepthDisable = false,
            D3D11_FILL_MODE fillMode = D3D11_FILL_SOLID,
            D3D11_CULL_MODE cullMode = D3D11_CULL_BACK);

        virtual ~raGroup(void);

        virtual bool Create();
        virtual void Destroy();
        virtual bool CreateMesh() { return m_pVisual->CreateMesh();}
        virtual bool DestroyMesh(){ return m_pVisual->DestroyMesh();}
        virtual bool RenderMesh(LPCSTR techniqueName = "");
        virtual void SetWorldMatrix(const raMatrix& value);
        virtual void SetWorldMatrix(const raMatrix& value, int instanceNo);
        virtual const raMatrix* GetWorldMatrix(int instanceNo);
        virtual bool Intersects(CONST raVector3 *pRayPos,
            CONST raVector3 *pRayDir, FLOAT *pDist)                     { return false; }
        virtual ID3D11Buffer* GetVertexBuffer()                         { return m_pVisual->GetVertexBuffer(); }
        virtual ID3D11Buffer* GetIndexBuffer()                          { return m_pVisual->GetIndexBuffer(); }
        virtual UINT GetStrideSize()                                    { return m_pVisual->GetStrideSize(); }
        virtual D3D11_PRIMITIVE_TOPOLOGY GetPrimitiveTopology(UINT n)   { return m_pVisual->GetPrimitiveTopology(n); }
        virtual UINT GetNumSubsets()                                    { return m_pVisual->GetNumSubsets();}
        virtual SDKMESH_SUBSET* GetSubset(UINT n)                       { return m_pVisual->GetSubset(n);}

        void CreateRandomMatrices(float scaleX = 1.0f, float scaleY = 1.0f, float scaleZ = 1.0f, float offsetY = 0.0f);
        UINT AddInstance(const raMatrix& world);

        IRAMesh* GetVisual(void)                            { return m_pVisual; }

    protected:
        virtual void        LoadInstanceData();
        virtual bool        CreateVertexLayout();
        void                InitInstanceMatrices();
        void                UpdateInstanceMatrices();
    protected:
        IRAMesh             *m_pVisual;
        raMatrix            m_InstanceMatrices[MAX_INSTANCES];
        int                 m_iNumInstances;
        int                 m_iNumInstancesToDraw;
        raMatrix*           m_pInstanceList;

        ID3D11Buffer*       m_pInstanceData;
    };