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    MaterialNodePointLight::MaterialNodePointLight(MaterialCompiler* Compiler)

        : MaterialNode( Compiler )

    {

        mAmbient    .BindSlot( L"Ambient",        this, MVT_Float3, "float3(0.0f,0.0f,0.0f)" );

        mDiffuse    .BindSlot( L"Diffuse",        this, MVT_Float3, "float3(0.0f,0.0f,0.0f)" );

        mNormal     .BindSlot( L"Normal",        this, MVT_Float3, "Parameters.VertexNormal" );

        mSpecular   .BindSlot( L"Specular",        this, MVT_Float3, "float3(0.0f,0.0f,0.0f)");

        mSpecularPow.BindSlot( L"SpecularPow",    this, MVT_Float,  "16.0f");

        mOpacity    .BindSlot( L"Opacity",        this, MVT_Float,  "1.0f");

    }

    typedef std::vector<void*> FormatParameterArray;

    void MaterialNodePointLight::Compile(  )

    {

        dword CodeGenLength = 0;

        FormatParameterArray tFormatParameterArray;

        // 編譯代碼,并構(gòu)建格式化數(shù)組

        for ( SlotList::iterator it = mSlotList.begin();

            it != mSlotList.end();

            ++it )

        {

            MaterialSlot* Slot = *it;

            Slot->Compile();

            CodeGenLength += StringHelperA::Length( Slot->GetResultCode() );

            CodeGenLength += StringHelperA::Length( Slot->GetCaculateCode() );

            tFormatParameterArray.push_back( (void*)Slot->GetCaculateCode() );

            tFormatParameterArray.push_back( (void*)Slot->GetResultCode() );

        }

        // 讀取模板文件

        FileStream ShaderFile;

        if ( !ShaderFile.Open(L"shader/MaterialTemplatePixelShader.usf", FAM_Read ) )

        {

            Assert( false );

        }

        dword ShaderFileSize = ShaderFile.GetSize();

        AString ShaderTemplateCode;

        ShaderTemplateCode.resize( ShaderFileSize + 1);

        ShaderFile.ReadBuffer( (void*)ShaderTemplateCode.data(), ShaderFileSize * sizeof( char ) );

        ShaderTemplateCode[ShaderFileSize] = 0;

        mCompiler->WriteFinalCode( ShaderFileSize + CodeGenLength , ShaderTemplateCode.c_str(), &tFormatParameterArray[0] );

    }