D3D12_RAYTRACING_TIER_NOT_SUPPORTEDになる

このサイトのSample/Desktop/D3D12Raytracingを主に参考にしてDirectX12のレイトレーシングについて勉強しています。

レイトレーシングをサポートしているかチェックするコードを
サンプルから抽出して書いてみたのですが”IsDirectXRaytracingSupported”関数内の
featureSupportData.RaytracingTier != D3D12_RAYTRACING_TIER_NOT_SUPPORTED;
がfalseになります。

プロジェクトの設定が違うのかなと思い上記のサンプル内に新しいプロジェクトを作りまったく同じコードを書いたところ
featureSupportData.RaytracingTier　が D3D12_RAYTRACING_TIER_1_0となり機能しました。

なのでソースコード自体はあっていると思うのですがどういった設定が必要なのかわかりません。

解決方法があれば教えてください。

C＋＋
1static const UINT FrameCount = 3;
2const static size_t MAX_BACK_BUFFER_COUNT = 3;
3
4static const unsigned int c_AllowTearing = 0x1;
5static const unsigned int c_RequireTearingSupport = 0x2;
6
7Microsoft::WRL::ComPtr<IDXGIFactory4>               m_dxgiFactory;
8Microsoft::WRL::ComPtr<IDXGIAdapter1>               m_adapter;
9D3D_FEATURE_LEVEL                                   m_d3dMinFeatureLevel;
10std::wstring                                        m_adapterDescription;
11UINT                                                m_adapterIDoverride;
12UINT                                                m_adapterID = UINT_MAX;
13
14
15void InitializeAdapter(IDXGIAdapter1** ppAdapter);
16bool IsDirectXRaytracingSupported(IDXGIAdapter1* adapter);
17
18
19int WINAPI _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow)
20{
21    m_adapterIDoverride = m_adapterID;
22    UINT backBufferCount = FrameCount;
23
24    if (backBufferCount > MAX_BACK_BUFFER_COUNT)
25    {
26        return -1;
27    }
28
29    D3D_FEATURE_LEVEL minFeatureLevel = D3D_FEATURE_LEVEL_11_0;
30    m_d3dMinFeatureLevel = minFeatureLevel;
31
32    if (minFeatureLevel < D3D_FEATURE_LEVEL_11_0)
33    {
34        return -1;
35    }
36    unsigned int m_options = c_RequireTearingSupport;
37
38    if (m_options & c_RequireTearingSupport)
39    {
40        m_options |= c_AllowTearing;
41    }
42
43
44    ThrowIfFailed(CreateDXGIFactory1(IID_PPV_ARGS(&m_dxgiFactory)));
45
46
47    if (m_options & (c_AllowTearing | c_RequireTearingSupport))
48    {
49        BOOL allowTearing = FALSE;
50
51        ComPtr<IDXGIFactory5> factory5;
52        HRESULT hr = m_dxgiFactory.As(&factory5);
53        if (SUCCEEDED(hr))
54        {
55            hr = factory5->CheckFeatureSupport(DXGI_FEATURE_PRESENT_ALLOW_TEARING, &allowTearing, sizeof(allowTearing));
56        }
57
58        if (FAILED(hr) || !allowTearing)
59        {
60            OutputDebugStringA("WARNING: Variable refresh rate displays are not supported.\n");
61            if (m_options & c_RequireTearingSupport)
62            {
63                ThrowIfFailed(false, L"Error: Sample must be run on an OS with tearing support.\n");
64            }
65            m_options &= ~c_AllowTearing;
66        }
67    }
68
69    InitializeAdapter(&m_adapter);
70    IsDirectXRaytracingSupported(m_adapter.Get());
71}
72
73
74void InitializeAdapter(IDXGIAdapter1** ppAdapter)
75{
76    *ppAdapter = nullptr;
77
78    ComPtr<IDXGIAdapter1> adapter;
79    ComPtr<IDXGIFactory6> factory6;
80    HRESULT hr = m_dxgiFactory.As(&factory6);
81    if (FAILED(hr))
82    {
83        return;
84    }
85    for (UINT adapterID = 0; DXGI_ERROR_NOT_FOUND != factory6->EnumAdapterByGpuPreference(adapterID, DXGI_GPU_PREFERENCE_HIGH_PERFORMANCE, IID_PPV_ARGS(&adapter)); ++adapterID)
86    {
87        if (m_adapterIDoverride != UINT_MAX && adapterID != m_adapterIDoverride)
88        {
89            continue;
90        }
91
92        DXGI_ADAPTER_DESC1 desc;
93        ThrowIfFailed(adapter->GetDesc1(&desc));
94
95        if (desc.Flags & DXGI_ADAPTER_FLAG_SOFTWARE) {
96            continue;
97        }
98
99        if (SUCCEEDED(D3D12CreateDevice(adapter.Get(), m_d3dMinFeatureLevel, _uuidof(ID3D12Device), nullptr)))
100        {
101            m_adapterID = adapterID;
102            m_adapterDescription = desc.Description;
103
104#ifdef _DEBUG
105            wchar_t buff[256] = {};
106            swprintf_s(buff, L"Direct3D Adapter (%u): VID:%04X, PID:%04X - %ls\n", adapterID, desc.VendorId, desc.DeviceId, desc.Description);
107            OutputDebugStringW(buff);
108
109            //出力　Direct3D Adapter (0): VID:10DE, PID:1C03 - NVIDIA GeForce GTX 1060 6GB
110#endif
111
112            break;
113        }
114    }
115
116#if !defined(NDEBUG)
117    if (!adapter && m_adapterIDoverride == UINT_MAX)
118    {
119        if (FAILED(m_dxgiFactory->EnumWarpAdapter(IID_PPV_ARGS(&adapter))))
120        {
121            return;
122        }
123
124        OutputDebugStringA("Direct3D Adapter - WARP12\n");
125    }
126#endif
127
128    if (!adapter)
129    {
130        if (m_adapterIDoverride != UINT_MAX)
131        {
132            return;
133        }
134        else
135        {
136            return;
137        }
138    }
139
140    *ppAdapter = adapter.Detach();
141}
142
143
144bool IsDirectXRaytracingSupported(IDXGIAdapter1* adapter)
145{
146    ComPtr<ID3D12Device> testDevice;
147    D3D12_FEATURE_DATA_D3D12_OPTIONS5 featureSupportData = {};
148
149    bool b = SUCCEEDED(D3D12CreateDevice(adapter, D3D_FEATURE_LEVEL_11_0, IID_PPV_ARGS(&testDevice)));
150    b &= SUCCEEDED(testDevice->CheckFeatureSupport(D3D12_FEATURE_D3D12_OPTIONS5, &featureSupportData, sizeof(featureSupportData)));
151    b &= featureSupportData.RaytracingTier != D3D12_RAYTRACING_TIER_NOT_SUPPORTED;
152    return b;
153}