Method CreateRenderTargets

BindlessDeferred/BindlessDeferred.cpp:790–870

Creates all required render targets

// Creates all required render targets
void BindlessDeferred::CreateRenderTargets()
{
    uint32 width = swapChain.Width();
    uint32 height = swapChain.Height();
    const uint32 NumSamples = AppSettings::NumMSAASamples();

    mainTarget.Initialize(width, height, DXGI_FORMAT_R16G16B16A16_FLOAT, NumSamples, 1, NumSamples == 1);

    tangentFrameTarget.Initialize(width, height, DXGI_FORMAT_R10G10B10A2_UNORM, NumSamples, 1, false, D3D12_RESOURCE_STATE_NON_PIXEL_SHADER_RESOURCE);
    uvTarget.Initialize(width, height, DXGI_FORMAT_R16G16B16A16_SNORM, NumSamples, 1, false, D3D12_RESOURCE_STATE_NON_PIXEL_SHADER_RESOURCE);
    uvGradientsTarget.Initialize(width, height, DXGI_FORMAT_R16G16B16A16_SNORM, NumSamples, 1, false, D3D12_RESOURCE_STATE_NON_PIXEL_SHADER_RESOURCE);
    materialIDTarget.Initialize(width, height, DXGI_FORMAT_R8_UINT, NumSamples, 1, false, D3D12_RESOURCE_STATE_NON_PIXEL_SHADER_RESOURCE);

    if(NumSamples > 1)
    {
        resolveTarget.Initialize(width, height, DXGI_FORMAT_R16G16B16A16_FLOAT, 1, 1, false);

        uint32 deferredWidth = width * 2;
        uint32 deferredHeight = NumSamples == 4 ? height * 2 : height;
        deferredMSAATarget.Initialize(deferredWidth, deferredHeight, DXGI_FORMAT_R16G16B16A16_FLOAT, 1, 1, true);
    }

    depthBuffer.Initialize(width, height, DXGI_FORMAT_D24_UNORM_S8_UINT, NumSamples, 1, D3D12_RESOURCE_STATE_NON_PIXEL_SHADER_RESOURCE);

    AppSettings::NumXTiles = (width + (AppSettings::ClusterTileSize - 1)) / AppSettings::ClusterTileSize;
    AppSettings::NumYTiles = (height + (AppSettings::ClusterTileSize - 1)) / AppSettings::ClusterTileSize;
    const uint64 numXYZTiles = AppSettings::NumXTiles * AppSettings::NumYTiles * AppSettings::NumZTiles;

    // Render target for forcing MSAA during cluster rasterization. Ideally we would use ForcedSampleCount for this,
    // but it's currently causing the Nvidia driver to crash. :(
    ClusterRasterizationModes rastMode = AppSettings::ClusterRasterizationMode;
    if(rastMode == ClusterRasterizationModes::MSAA4x)
        clusterMSAATarget.Initialize(AppSettings::NumXTiles, AppSettings::NumYTiles, DXGI_FORMAT_R8_UNORM, 4, 1, false);
    else if(rastMode == ClusterRasterizationModes::MSAA8x)
        clusterMSAATarget.Initialize(AppSettings::NumXTiles, AppSettings::NumYTiles, DXGI_FORMAT_R8_UNORM, 8, 1, false);
    else
        clusterMSAATarget.Shutdown();

    {
        // Decal cluster bitmask buffer
        RawBufferInit rbInit;
        rbInit.NumElements = numXYZTiles * AppSettings::DecalElementsPerCluster;
        rbInit.CreateUAV = true;
        decalClusterBuffer.Initialize(rbInit);
        decalClusterBuffer.InternalBuffer.Resource->SetName(L"Decal Cluster Buffer");
    }

    {
        // Spotlight cluster bitmask buffer
        RawBufferInit rbInit;
        rbInit.NumElements = numXYZTiles * AppSettings::SpotLightElementsPerCluster;
        rbInit.CreateUAV = true;
        spotLightClusterBuffer.Initialize(rbInit);
        spotLightClusterBuffer.InternalBuffer.Resource->SetName(L"Spot Light Cluster Buffer");
    }

    {
        const uint64 numComputeTilesX = AlignTo(mainTarget.Width(), AppSettings::DeferredTileSize) / AppSettings::DeferredTileSize;