Method GetDefaultDeviceParams

Rtxpt/SampleCommon/SampleBaseApp.cpp:222–289

}

donut::app::DeviceCreationParameters SampleBaseApp::GetDefaultDeviceParams() const
{
    donut::app::DeviceCreationParameters deviceParams;
    deviceParams.backBufferWidth = 0;   // initialized from CmdLine
    deviceParams.backBufferHeight = 0;  // initialized from CmdLine
    deviceParams.swapChainSampleCount = 1;
    deviceParams.swapChainBufferCount = c_SwapchainCount;
    deviceParams.startFullscreen = false;
    deviceParams.startBorderless = false;
    deviceParams.vsyncEnabled = true;
    deviceParams.enableRayTracingExtensions = true;
#if DONUT_WITH_DX12
#if defined(RTXPT_D3D_AGILITY_SDK_VERSION)
    deviceParams.featureLevel = D3D_FEATURE_LEVEL_12_2;
    // TODO: Redefining this isn't needed. Take the ones from AgilitySDK
    static const UUID D3D12ExperimentalShaderModels = { 0x76f5573e, 0xf13a, 0x40f5, {0xb2, 0x97, 0x81, 0xce, 0x9e, 0x18, 0x93, 0x3f} };
    static const UUID D3D12StateObjectsExperiment = { 0x398a7fd6, 0xa15a, 0x42c1, {0x96, 0x05, 0x4b, 0xd9, 0x99, 0x9a, 0x61, 0xaf} };
    static const UUID D3D12RaytracingExperiment = { 0xb56e238b, 0xe886, 0x46d8, {0x9b, 0xe1, 0x34, 0x10, 0x30, 0x31, 0x45, 0x09} };
    UUID Features[] = { D3D12ExperimentalShaderModels }; //, D3D12StateObjectsExperiment }; //, D3D12RaytracingExperiment };
    HRESULT ok = D3D12EnableExperimentalFeatures(_countof(Features), Features, nullptr, nullptr);
#else
    deviceParams.featureLevel = D3D_FEATURE_LEVEL_12_1;
#endif
#endif
#if defined(_DEBUG)
    deviceParams.enableDebugRuntime = true;
    deviceParams.enableWarningsAsErrors = true;
    deviceParams.enableNvrhiValidationLayer = true;
    deviceParams.enableGPUValidation = false;       // <- this severely impact performance but is good to enable from time to time
#endif
    deviceParams.supportExplicitDisplayScaling = true;

#if DONUT_WITH_STREAMLINE
    deviceParams.checkStreamlineSignature = true;   // <- Set to false if you're using a local build of streamline
    deviceParams.streamlineAppId = 231313132;
#if defined(_DEBUG)
    deviceParams.enableStreamlineLog = true;
#endif
#endif

#if DONUT_WITH_VULKAN
    deviceParams.requiredVulkanDeviceExtensions.push_back("VK_KHR_buffer_device_address");
    deviceParams.requiredVulkanDeviceExtensions.push_back("VK_KHR_format_feature_flags2");

    // Attachment 0 not written by fragment shader; undefined values will be written to attachment (OMM baker)
    deviceParams.ignoredVulkanValidationMessageLocations.push_back(0x0000000023e43bb7);

    // vertex shader writes to output location 0.0 which is not consumed by fragment shader (OMM baker)
    deviceParams.ignoredVulkanValidationMessageLocations.push_back(0x000000000609a13b);

    // vkCmdDispatch(): Buffer format mismatch for t_NeighborOffsets (RG8_SNORM vs shader expecting RG32_FLOAT)
    // DX12 handles this automatically; it works correctly, just Vulkan is stricter about format matching
    deviceParams.ignoredVulkanValidationMessageLocations.push_back(0x00000000c5a3822a);

    // vkCmdPipelineBarrier2(): pDependencyInfo.pBufferMemoryBarriers[0].dstAccessMask bit VK_ACCESS_SHADER_READ_BIT
    // is not supported by stage mask (Unhandled VkPipelineStageFlagBits)
    // Vulkan validation layer not supporting OMM?
    deviceParams.ignoredVulkanValidationMessageLocations.push_back(0x00000000591f70f2);