Method DepthOfField

PostProcess/DepthOfField/src/DepthOfField.cpp:96–171

}

DepthOfField::DepthOfField(IRenderDevice* pDevice, const CreateInfo& CI) :
    m_pDOFAttribs{std::make_unique<HLSL::DepthOfFieldAttribs>()},
    m_Settings{CI}
{
    DEV_CHECK_ERR(pDevice != nullptr, "pDevice must not be null");

    RenderDeviceWithCache_N Device{pDevice};

    RefCntAutoPtr<IBuffer> pBuffer;
    CreateUniformBuffer(Device, sizeof(HLSL::DepthOfFieldAttribs), "DepthOfFieldAttribs::ConstantBuffer", &pBuffer, USAGE_DEFAULT, BIND_UNIFORM_BUFFER, CPU_ACCESS_NONE, m_pDOFAttribs.get());
    m_Resources.Insert(RESOURCE_IDENTIFIER_CONSTANT_BUFFER, pBuffer);

    {
        auto KernelData = GenerateKernelPoints(m_pDOFAttribs->BokehKernelRingCount, m_pDOFAttribs->BokehKernelRingDensity);
        KernelData.resize(128, float2(0.0, 0.0));

        TextureSubResData ResourceData;
        ResourceData.pData  = KernelData.data();
        ResourceData.Stride = sizeof(float2) * KernelData.size();

        TextureData TexData;
        TexData.pSubResources   = &ResourceData;
        TexData.NumSubresources = 1;

        TextureDesc Desc;
        Desc.Name      = "DepthOfField::LargeBokehKernel";
        Desc.Type      = RESOURCE_DIM_TEX_2D;
        Desc.Width     = static_cast<Uint32>(KernelData.size());
        Desc.Height    = 1;
        Desc.Format    = TEX_FORMAT_RG32_FLOAT;
        Desc.BindFlags = BIND_SHADER_RESOURCE | BIND_RENDER_TARGET;
        m_Resources.Insert(RESOURCE_IDENTIFIER_BOKEH_LARGE_KERNEL_TEXTURE, Device.CreateTexture(Desc, &TexData));
    }

    {
        auto KernelData = GenerateKernelPoints(DOF_BOKEH_KERNEL_SMALL_RING_COUNT, DOF_BOKEH_KERNEL_SMALL_RING_DENSITY);

        TextureSubResData ResourceData;
        ResourceData.pData  = KernelData.data();
        ResourceData.Stride = sizeof(float2) * KernelData.size();

        TextureData TexData;
        TexData.pSubResources   = &ResourceData;
        TexData.NumSubresources = 1;

        TextureDesc Desc;
        Desc.Name      = "DepthOfField::SmallBokehKernel";
        Desc.Type      = RESOURCE_DIM_TEX_2D;
        Desc.Width     = static_cast<Uint32>(KernelData.size());
        Desc.Height    = 1;
        Desc.Format    = TEX_FORMAT_RG32_FLOAT;
        Desc.BindFlags = BIND_SHADER_RESOURCE | BIND_RENDER_TARGET;
        m_Resources.Insert(RESOURCE_IDENTIFIER_BOKEH_SMALL_KERNEL_TEXTURE, Device.CreateTexture(Desc, &TexData));
    }

    {
        auto KernelData = GenerateGaussKernel(DOF_GAUSS_KERNEL_RADIUS, DOF_GAUSS_KERNEL_SIGMA);