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
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