raGPUParticleSystem.h

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#pragma once

    class RAPI raGPUParticleSystem : public raVisual
    {
    public:
        static const int MAXPARTICLES = 100;
    public:
        raGPUParticleSystem(raDirectX *dx, LPCSTR ParticleTexture = "raGrafik\\particlered.bmp",
            LPCSTR EffectFile = "raEffects\\ParticleEffect.fx",
            LPCSTR Technique = "RenderParticle");

        raGPUParticleSystem(raDirectX *dx, raMaterial *ParticleMat);

        ~raGPUParticleSystem(void) { SAFE_DELETE(m_pCS); }

        virtual bool CreateMesh()  { return m_pCS->Create(); }
        virtual bool DestroyMesh() { m_pCS->Destroy(); return true; }

        virtual void SetupEffectVariables(const raMatrix& pView, const raMatrix& pProj,
                                          const raLight* pLight);

        virtual bool RenderMesh(LPCSTR techniqueName = "");

        virtual bool Update(float fTime, float fRunTime)
        {
            return m_pCS->RunCS(MAXPARTICLES, 1, 1);
        }

        //IMesh-Funktionen
        virtual UINT GetNumSubsets(){return 1;}
        virtual SDKMESH_SUBSET* GetSubset(UINT n){return NULL;}

        virtual const D3D11_INPUT_ELEMENT_DESC* GetVertexLayout(){return PARTICLEVERTEX::GetVertexLayout();}
        virtual UINT GetNumElements(){return PARTICLEVERTEX::GetNumElements();}

        virtual ID3D11Buffer* GetVertexBuffer(){return m_pCS->GetBuffer();}
        virtual ID3D11Buffer* GetIndexBuffer(){return NULL;}
        virtual UINT GetStrideSize(){return sizeof(PARTICLEVERTEX);}

        virtual DXGI_FORMAT GetIndexBufferFormat(){return DXGI_FORMAT_R32_TYPELESS;}
        virtual D3D11_PRIMITIVE_TOPOLOGY GetPrimitiveTopology(UINT n)
        {
            return D3D11_PRIMITIVE_TOPOLOGY_POINTLIST;
        }

        //Dummy-Implementierung
        virtual bool Intersects(const raVector3* pRayPos,
            const raVector3* pRayDir,
            float* pDist){return false;}
    protected:
        raCSIOBuffer*                   m_pCS;
        std::vector<PARTICLEVERTEX>     m_Particles;
        raMaterial                      *m_mat;
    };