Method PrepareResources

PostProcess/Common/src/PostFXContext.cpp:241–285

PostFXContext::~PostFXContext() = default;

void PostFXContext::PrepareResources(IRenderDevice* pDevice, const FrameDesc& Desc, FEATURE_FLAGS FeatureFlags)
{
    m_FrameDesc.Index = Desc.Index;
    m_FeatureFlags    = FeatureFlags;

    if (m_FrameDesc.Width == Desc.Width && m_FrameDesc.Height == Desc.Height)
        return;

    m_FrameDesc = Desc;

    RenderDeviceWithCache_N Device{pDevice};

    {
        TextureDesc ResourceDesc;
        ResourceDesc.Name      = "PostFXContext::ReprojectedDepth";
        ResourceDesc.Type      = RESOURCE_DIM_TEX_2D;
        ResourceDesc.Width     = m_FrameDesc.Width;
        ResourceDesc.Height    = m_FrameDesc.Height;
        ResourceDesc.Format    = (m_FeatureFlags & FEATURE_FLAG_HALF_PRECISION_DEPTH) ? TEX_FORMAT_R16_UNORM : TEX_FORMAT_R32_FLOAT;
        ResourceDesc.BindFlags = BIND_SHADER_RESOURCE | BIND_RENDER_TARGET;
        m_Resources.Insert(RESOURCE_IDENTIFIER_REPROJECTED_DEPTH, Device.CreateTexture(ResourceDesc));
    }

    {
        TextureDesc ResourceDesc;
        ResourceDesc.Name      = "PostFXContext::PreviousDepth";
        ResourceDesc.Type      = RESOURCE_DIM_TEX_2D;
        ResourceDesc.Width     = m_FrameDesc.Width;
        ResourceDesc.Height    = m_FrameDesc.Height;
        ResourceDesc.Format    = (m_FeatureFlags & FEATURE_FLAG_HALF_PRECISION_DEPTH) ? TEX_FORMAT_R16_UNORM : TEX_FORMAT_R32_FLOAT;
        ResourceDesc.BindFlags = BIND_SHADER_RESOURCE | BIND_RENDER_TARGET;
        m_Resources.Insert(RESOURCE_IDENTIFIER_PREVIOUS_DEPTH, Device.CreateTexture(ResourceDesc));
    }

    {
        TextureDesc ResourceDesc;
        ResourceDesc.Name      = "PostFXContext::ClosestMotion";
        ResourceDesc.Type      = RESOURCE_DIM_TEX_2D;
        ResourceDesc.Width     = m_FrameDesc.Width;
        ResourceDesc.Height    = m_FrameDesc.Height;
        ResourceDesc.Format    = TEX_FORMAT_RG16_FLOAT;
        ResourceDesc.BindFlags = BIND_SHADER_RESOURCE | BIND_RENDER_TARGET;
        m_Resources.Insert(RESOURCE_IDENTIFIER_CLOSEST_MOTION, Device.CreateTexture(ResourceDesc));
    }
}

void PostFXContext::Execute(const RenderAttributes& RenderAttribs)
{