Method BeginBackbufferRenderPass

src/DX12/DX12EngineInterfaceImpl.cpp:1275–1311

}

void EI_Device::BeginBackbufferRenderPass()
{
    using namespace DirectX::Detail;
    const wchar_t pPassName[] = L"BackBufferRenderPass";
    UINT size = static_cast<UINT>((wcslen(pPassName) + 1) * sizeof(wchar_t));
    m_currentCommandBuffer.commandBuffer.Get()->BeginEvent(PIX_EVENT_UNICODE_VERSION, pPassName, size);

    // First transition the current back buffer to render target from present resource
    CD3DX12_RESOURCE_BARRIER barrier = CD3DX12_RESOURCE_BARRIER::Transition(m_swapChain.GetCurrentBackBufferResource(), D3D12_RESOURCE_STATE_PRESENT, D3D12_RESOURCE_STATE_RENDER_TARGET);
    m_currentCommandBuffer.commandBuffer->ResourceBarrier(1, &barrier);

    D3D12_CPU_DESCRIPTOR_HANDLE cpuHandle[MaxRenderAttachments];

    cpuHandle[0] = *m_swapChain.GetCurrentBackBufferRTV();
    cpuHandle[1] = m_depthBuffer->DSView->GetCPU();

    m_currentCommandBuffer.commandBuffer->OMSetRenderTargets(1, cpuHandle, FALSE, &cpuHandle[1]);

    // Setup fast clear
    D3D12_CLEAR_VALUE clearValues[2];
    clearValues[0].Format = m_swapChain.GetFormat();
    clearValues[0].Color[0] = 0.0f;
    clearValues[0].Color[1] = 0.0f;
    clearValues[0].Color[2] = 0.0f;
    clearValues[0].Color[3] = 1.0f;
    
    clearValues[1].Format = DXGI_FORMAT_D32_FLOAT;
    clearValues[1].DepthStencil.Depth = 1.0f;
    clearValues[1].DepthStencil.Stencil = 0;

    // Do a clear before rendering everything out to the swap chain buffer
    m_currentCommandBuffer.commandBuffer->ClearRenderTargetView(cpuHandle[0], clearValues[0].Color, 0, nullptr);
    // Only clear depth as we don't currently have a stencil
    m_currentCommandBuffer.commandBuffer->ClearDepthStencilView(cpuHandle[1], D3D12_CLEAR_FLAG_DEPTH, clearValues[1].DepthStencil.Depth, clearValues[1].DepthStencil.Stencil, 0, nullptr);

    CAULDRON_DX12::SetViewportAndScissor(m_currentCommandBuffer.commandBuffer.Get(), 0, 0, m_width, m_height);
}

void EI_Device::EndRenderPass()
{