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HARDWARE TILED RESOURCES TIER 2 DRIVERS
HARDWARE TILED RESOURCES TIER 2 DRIVER
HARDWARE TILED RESOURCES TIER 2 UPGRADE

Most of these features were introduced by NVIDIA’s Turing GPUs on a hardware level, and with DX12_2, the rest will come into play as well.

HARDWARE TILED RESOURCES TIER 2 DRIVER

To quality as a DirectX 12_2 architecture, the GPU has to support the following: Feature 12_2 minimum Public spec Required driver model WDDM 2.0 Shader Model 6.5 Link Raytracing tier Tier 1.1 Link Variable shading rate Tier 2 Link Mesh shader tier Tier 1 Link Sampler feedback Tier 0.9 Link Resource Binding Tier Tier 3 Link Tiled Resources (Tiled rendering/resource binding?) Tier 3 Conservative Rasterization Tier 3 Link Root Signature Tier 1.1 Link DepthBoundsTestSupported TRUE Link WriteBufferImmediateSupportFlags Direct, Compute, Bundle MaxGPUVirtualAddressBitsPerResource 40 MaxGPUVirtualAddressBitsPerProcess 40

HARDWARE TILED RESOURCES TIER 2 UPGRADE

Keep in mind that although this isn’t exactly an upgrade to the API, it’ll be instrumental in determining which GPU architectures support the core features of DX12 Ultimate. Other tests, external to the specific test for feature level 12_2, are in place to ensure that CheckFeatureSupport capabilities properly match with device behavior.Microsoft has revealed the requirements of the next DirectX12 feature level, namely 12_2. This is a conformance test, not an HLK test because it exercises behaviors of the runtime not the driver. There is a Direct3D 12 conformance test to validate that a Direct3D 12 device created with feature level 12_2 capability satisfies at least the capabilities outlined in the Capabilities section of this document.

HARDWARE TILED RESOURCES TIER 2 DRIVERS

The WriteBufferImmediateSupportFlags capability D3D12_COMMAND_LIST_SUPPORT_FLAG_BUNDLE is switched on at the API level for drivers which report D3D12DDI_COMMAND_QUEUE_FLAG_3D at the DDI level.

Versions of Direct3D built into Iron operating system, or organized as a re-distributable use 3DPIPELINESUPPORT1, and fall back to 3DPIPELINESUPPORT if it fails.ĭiscrepency in API-level and DDI-level reported capabilities.

Versions of Direct3D built into the operating system at or before Manganese (20H2) use 3DPIPELINESUPPORT.

The driver returns a value for MaximumDriverSupportedFeatureLevel which does not exceed HighestRuntimeSupportedFeatureLevel. Typedef struct D3D12DDI_3DPIPELINESUPPORT1_DATA_0081ĭ3D12DDI_3DPIPELINELEVEL HighestRuntimeSupportedFeatureLevel // inputĭ3D12DDI_3DPIPELINELEVEL MaximumDriverSupportedFeatureLevel // outputįor 3DPIPELINESUPPORT1, the runtime sets the value of HighestRuntimeSupportedFeatureLevel. This enumeration has a value for feature level 12.2: The Direct3D 12 UMD DDI has an enumeration, D3D12DDI_3DPIPELINELEVEL, for describing feature levels.

Some specifications, especially those from before the May 2019 Update, are not migrated to the DirectX-Specs repo. VPAndRTArrayIndexFromAnyShaderFeedingRasterizerSupportWithoutGSEmulation There are no guarantees in particular regarding MaxGPUVirtualAddressBitsPerResource and MaxGPUVirtualAddressBitsPerProcess for 32-bit processes.Īdditionally, it has the following flags set Feature This idea pertains to process architecture which is not necessarily the same as CPU or operating system architecture. On feature level 12_2 devices, the two capabilities MaxGPUVirtualAddressBitsPerResource and MaxGPUVirtualAddressBitsPerProcess are guaranteed to be at least 40 for programs running in 64-bit processes (for example, 圆4-based processes are considered 64-bit processes). If a device is feature level 12_2, it has Feature feature level is supported by default adapterįeature level 12_2 is expressed in terms of capabilities and feature tiers directly queryable through CheckFeatureSupport. HRESULT hr = D3D12CreateDevice(nullptr, featureLevel, IID_PPV_ARGS(&m_spDevice)) D3D_FEATURE_LEVEL featureLevel = D3D_FEATURE_LEVEL_12_2