CreateDepthStencilView()失败

Question

我正尝试在我的DirectX应用程序中创建阴影贴图，但目前在创建深度模具视图时遇到了问题。CreateDepthStencilView()将我的ID3D11DepthStencilView*变量保留为空。

我设法从HRESULT得到的唯一错误是"The parameter is incorrect"。问题似乎出在D3D11_TEXTURE2D_DESC和ID3D11_DEPTH_STENCIL_VIEW_DESC上，因为当我将它们分别替换为深度纹理和nullptr时，它就可以工作了。然后，我将工作函数参数替换为阴影贴图值，一次一个，但两者都不起作用。

我还尝试了按照this post中的建议设置shadowDsv.Flags = 0，但得到了相同的结果。

我正在学习this教程，代码和他的是一样的(除了我的是DX11而不是DX10)，我不确定问题是什么。这是我的代码：

Application.h

    ID3D11Texture2D*        _shadowMapTexture;
    ID3D11DepthStencilView* _shadowMapStencil;
    ID3D11ShaderResourceView* _shadowMapRV;

Application.cpp

    //Set up shadow map
    D3D11_TEXTURE2D_DESC shadowTexDesc;
    shadowTexDesc.Width = _WindowWidth;
    shadowTexDesc.Height = _WindowHeight;
    shadowTexDesc.MipLevels = 1;
    shadowTexDesc.ArraySize = 1;
    shadowTexDesc.Format = DXGI_FORMAT_R32_TYPELESS;
    shadowTexDesc.SampleDesc.Count = 1;
    shadowTexDesc.SampleDesc.Quality = 0;
    shadowTexDesc.Usage = D3D11_USAGE_DEFAULT;
    shadowTexDesc.BindFlags = D3D11_BIND_DEPTH_STENCIL | D3D11_BIND_SHADER_RESOURCE;
    shadowTexDesc.CPUAccessFlags = 0;
    shadowTexDesc.MiscFlags = 0;

    D3D11_DEPTH_STENCIL_VIEW_DESC shadowDsv;
    shadowDsv.Format = shadowTexDesc.Format;
    shadowDsv.ViewDimension = D3D11_DSV_DIMENSION_TEXTURE2D;
    shadowDsv.Texture2D.MipSlice = 0;

    D3D11_SHADER_RESOURCE_VIEW_DESC shadowSrv;
    shadowSrv.Format = DXGI_FORMAT_R32_FLOAT;
    shadowSrv.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
    shadowSrv.Texture2D.MipLevels = shadowTexDesc.MipLevels;
    shadowSrv.Texture2D.MostDetailedMip = 0;

    hr = _pd3dDevice->CreateTexture2D(&shadowTexDesc, nullptr, &_shadowMapTexture);
    hr = _pd3dDevice->CreateDepthStencilView(_shadowMapTexture, &shadowDsv, &_shadowMapStencil);
    hr = _pd3dDevice->CreateShaderResourceView(_shadowMapTexture, &shadowSrv, &_shadowMapRV);

编辑:这是调用CreateDepthStencilView()时的控制台输出。谢谢你到目前为止的帮助。

D3D11 ERROR: ID3D11Device::CreateDepthStencilView: The Format (0x27, R32_TYPELESS) is invalid, when creating a View; it is not a fully qualified Format castable from the Format of the Resource (0x27, R32_TYPELESS). [ STATE_CREATION ERROR #144: CREATEDEPTHSTENCILVIEW_INVALIDFORMAT]
D3D11 ERROR: ID3D11Device::CreateDepthStencilView: The format (0x27, R32_TYPELESS) cannot be used with a DepthStencil view. [ STATE_CREATION ERROR #144: CREATEDEPTHSTENCILVIEW_INVALIDFORMAT]
D3D11 ERROR: ID3D11Device::CreateDepthStencilView: There were unrecognized flags specified in the DepthStencilView Flags field. The flags value was 0xcccccccc, while the valid flags are limited to 0x3. [ STATE_CREATION ERROR #2097153: CREATEDEPTHSTENCILVIEW_INVALIDFLAGS]
Exception thrown at 0x76D235D2 in DX11 Framework.exe: Microsoft C++ exception: _com_error at memory location 0x00B3EE98.
D3D11 ERROR: ID3D11Device::CreateDepthStencilView: Returning E_INVALIDARG, meaning invalid parameters were passed. [ STATE_CREATION ERROR #148: CREATEDEPTHSTENCILVIEW_INVALIDARG_RETURN]

似乎R32_TYPELESS格式是导致错误的原因。看完文档后，我发现只有几种允许的格式。有没有人推荐阴影贴图的特定格式？我以前没有这样做过，所以我不确定下面的任何一个是不是一个很好的替代品：

DXGI_FORMAT_D16_UNORM
DXGI_FORMAT_D24_UNORM_S8_UINT
DXGI_FORMAT_D32_FLOAT
DXGI_FORMAT_D32_FLOAT_S8X24_UINT
DXGI_FORMAT_UNKNOWN

再次感谢:)

Answer 1

对于其他有这个问题的人:我的解决方法是将D3D11_DEPTH_STENCIL_VIEW_DESC格式设置为DXGI_FORMAT_D32_FLOAT，并且D3D11_DEPTH_STENCIL_VIEW_DESC标志等于0。