SlimDX 11深度缓冲区问题

我遇到SlimDX March SDK问题（对于2010年6月的DXSDK11我相信）。问题是，只要我把深度视图附加到输出合并状态，我就不会在屏幕上得到任何输出。我将我的代码与DX11样本进行了比较，它似乎是正确的。我已经尝试了深度测试的各种标志和格式（包括总是通过等），但似乎没有任何工作。如果有人能发现一个错误，我会很感激。这是代码。以下是具体步骤：SlimDX 11深度缓冲区问题

初始化后缓冲区：

 D3DDevice device; 
    SwapChain swapChain; 

    /// Create the swap chain 
    SwapChainDescription desc = new SwapChainDescription() 
    { 
     BufferCount = 1, 
     ModeDescription = new ModeDescription 
     { 
      Width = ContextSettings.Width, 
      Height = ContextSettings.Height, 
      RefreshRate = new SlimDX.Rational(ContextSettings.RefreshRate, 1), 
      Format = ContextSettings.BufferFormat, 
     }, 
     IsWindowed = !ContextSettings.FullScreen, 
     OutputHandle = WindowHandle, 
     SampleDescription = new SampleDescription(1, 0), 
     SwapEffect = SwapEffect.Discard, 
     Usage = Usage.RenderTargetOutput, 
    }; 

    FeatureLevel[] featureLevels = new FeatureLevel[] { FeatureLevel.Level_11_0, FeatureLevel.Level_10_1 }; 
    DriverType driverType = DriverType.Hardware; 

    D3DDevice.CreateWithSwapChain(driverType, DeviceCreationFlags.Debug, featureLevels, desc, out device, out swapChain); 

    Device = device; 
    SwapChain = swapChain; 

    /// Setup window association 
    Factory factory = swapChain.GetParent<Factory>(); 
    factory.SetWindowAssociation(WindowHandle, WindowAssociationFlags.IgnoreAll); 

    /// Setup back buffers and render target views 
    RenderBuffer = DXTexture2D.FromSwapChain<DXTexture2D>(swapChain, 0); 
    RenderView = new RenderTargetView(Device, RenderBuffer);

然后初始化深度缓存：

 Format depthFormat = Format.D32_Float; 
    Texture2DDescription depthBufferDesc = new Texture2DDescription 
    { 
     ArraySize = 1, 
     BindFlags = BindFlags.DepthStencil, 
     CpuAccessFlags = CpuAccessFlags.None, 
     Format = depthFormat, 
     Height = width, 
     Width = height, 
     MipLevels = 1, 
     OptionFlags = ResourceOptionFlags.None, 
     SampleDescription = new SampleDescription(1, 0), 
     Usage = ResourceUsage.Default 
    }; 

    DepthBuffer = new DXTexture2D(Device, depthBufferDesc); 

    DepthStencilViewDescription dsViewDesc = new DepthStencilViewDescription 
    { 
     ArraySize = 0, 
     Format = depthFormat, 
     Dimension = DepthStencilViewDimension.Texture2D, 
     MipSlice = 0, 
     Flags = 0, 
     FirstArraySlice = 0 
    }; 

    DepthView = new DepthStencilView(Device, DepthBuffer, dsViewDesc); 

    DepthStencilStateDescription dsStateDesc = new DepthStencilStateDescription() 
    { 
     IsDepthEnabled = true, 
     IsStencilEnabled = false, 
     DepthWriteMask = DepthWriteMask.All, 
     DepthComparison = Comparison.Less, 
    }; 

    DepthState = DepthStencilState.FromDescription(Device, dsStateDesc);

设置渲染目标：

DeviceContext.OutputMerger.DepthStencilState = DepthState; 
    DeviceContext.OutputMerger.SetTargets(DepthView, RenderView); 
    DeviceContext.Rasterizer.SetViewports(new Viewport(0, 0, ContextSettings.Width, ContextSettings.Height, 0.0f, 1.0f)); 

    Clear();

一旦我从OutputMerger.SetTargets中删除了DepthView，我就开始在屏幕上看到图像（当然没有进行深度测试），反之亦然。

来源

2011-06-23 GlGuru

你看过DirectX提供的调试输出，看看是否列出了任何错误或警告？还可以尝试使用PIX来查看几何图形的确切情况。 – MikeP

您正在初始化深度模板视图，完全像我一样。唯一不同的是我使用的格式是Format.D24_UNorm_S8_UInt。你可以试试看看它是否有效？编辑：哦，我根本没有使用DepthStencilState。你能否尝试评论一下，看看问题出在哪里？ –

原来，在depthBufferDesc中，我将宽度传递给Height变量，将高度传递给Width。这是创建了两个不同维度的渲染目标，并将其分解。

来源

2011-09-19 19:42:18 GlGuru

SlimDX 11深度缓冲区问题

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