Hi Guys!

I am new to DirectX, so excuse me if this is an easy to solve Problem, but i tried for hours now, and i just dont get it.

I try to render some stuff with DirectX 11 (c++). Rendering works fine, but it just ignores the depth,

It draws everything in order of my draw call, meaning the last drawn stuff is visible.

I enabled the DirectX debug mode, to get some Error-Information in my IDE, this it what it tells me:

D3D11 WARNING: ID3D11DeviceContext::DrawIndexed: The Pixel Shader unit expects a Sampler to be set at Slot 0, but none is bound. This is perfectly valid, as a NULL Sampler maps to default Sampler state. However, the developer may not want to rely on the defaults.  [ EXECUTION WARNING #352: DEVICE_DRAW_SAMPLER_NOT_SET]
Der Thread 0x98c hat mit Code 0 (0x0) geendet.
Der Thread 0x1bf0 hat mit Code 0 (0x0) geendet.
Der Thread 0x53c hat mit Code 0 (0x0) geendet.
D3D11 WARNING: Process is terminating. Using simple reporting. Please call ReportLiveObjects() at runtime for standard reporting. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING: Live Producer at 0x00CD310C, Refcount: 16. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CD8F28, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CE8208, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CEE3FC, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CEE544, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CEE6B4, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CEE904, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CEEA4C, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CEEB98, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CEF24C, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CEF5FC, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CEF944, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CEFBBC, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CEFD54, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CEFFC4, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CF0234, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CF044C, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CF05E4, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CF084C, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00D00184, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CF4C7C, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00D003EC, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00D00DCC, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CFDAE4, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00CFF71C, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00D01044, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00D012AC, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00D57D44, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00D50784, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00D5091C, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00D50B94, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00D50D2C, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00D50FA4, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00D93594, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00D937FC, Refcount: 1. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING:  Live Object at 0x00D0F594, Refcount: 0. [ STATE_CREATION WARNING #0: UNKNOWN]
D3D11 WARNING: Live                         Object :     35 [ STATE_CREATION WARNING #0: UNKNOWN]
DXGI WARNING: Live Producer at 0x00CCF5F8, Refcount: 4. [ STATE_CREATION WARNING #0: ]
DXGI WARNING:  Live Object at 0x00CD1E20, Refcount: 2. [ STATE_CREATION WARNING #0: ]
DXGI WARNING: Live                         Object :      1 [ STATE_CREATION WARNING #0: ]
Das Programm "[916] tst.exe" wurde mit Code 0 (0x0) beendet.

I dont think this warnings have anything to do with my Problem, but i am not 100% sure about that.

This is the Code for creating the backbuffer, depthstencilbuffer etc...

void InitD3D(HWND hWnd)
{
 
   //Describe our SwapChain Buffer
   DXGI_MODE_DESC bufferDesc;
 
   ZeroMemory(&bufferDesc, sizeof(DXGI_MODE_DESC));
 
   bufferDesc.Width = SCREEN_WIDTH;
   bufferDesc.Height = SCREEN_HEIGHT;
   bufferDesc.RefreshRate.Numerator = 60;
   bufferDesc.RefreshRate.Denominator = 1;
   bufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
   bufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED;
   bufferDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED;
 
   // create a struct to hold information about the swap chain
   DXGI_SWAP_CHAIN_DESC scd;
 
   // clear out the struct for use
   ZeroMemory(&scd, sizeof(DXGI_SWAP_CHAIN_DESC));
 
   // fill the swap chain description struct
   scd.BufferDesc = bufferDesc;
   scd.BufferCount = 1;                                   // one back buffer
   scd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;     // how swap chain is to be used
   scd.OutputWindow = hWnd;                               // the window to be used
   scd.SampleDesc.Count = 1;                              // how many multisamples
   scd.SampleDesc.Quality = 0;
   scd.Windowed = TRUE;                                   // windowed/full-screen mode
   scd.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;    // allow full-screen switching
 
   scd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD; // Discard the back buffer contents after presenting.
 
 
   // create a device, device context and swap chain using the information in the scd struct
   hr = D3D11CreateDeviceAndSwapChain(NULL,
                                  D3D_DRIVER_TYPE_HARDWARE,
                                  NULL,
                                  D3D11_CREATE_DEVICE_DEBUG,
                                  NULL,
                                  NULL,
                                  D3D11_SDK_VERSION,
                                  &scd,
                                  &swapchain,
                                  &dev,
                                  NULL,
                                  &devcon);
   if(FAILED(hr))
   {
      MessageBox(NULL, L"D3D11CreateDeviceAndSwapChain failed", NULL, MB_OK);
   }
 
   // get the address of the back buffer
   ID3D11Texture2D *pBackBuffer;
   swapchain->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&pBackBuffer);
 
   // use the back buffer address to create the render target
   hr = dev->CreateRenderTargetView(pBackBuffer, NULL, &backbuffer);
   if(FAILED(hr))
   {
      MessageBox(NULL, L"CreateRenderTargetView (backbuffer) failed", NULL, MB_OK);
   }
   pBackBuffer->Release();
   pBackBuffer = 0;
 
   // depth + stencil
   // Initialize the description of the depth buffer.
   D3D11_TEXTURE2D_DESC depthBufferDesc;
   ZeroMemory(&depthBufferDesc, sizeof(depthBufferDesc));
 
   // Set up the description of the depth buffer.
   depthBufferDesc.Width = SCREEN_WIDTH;
   depthBufferDesc.Height = SCREEN_HEIGHT;
   depthBufferDesc.MipLevels = 1;
   depthBufferDesc.ArraySize = 1;
   depthBufferDesc.Format = DXGI_FORMAT_D24_UNORM_S8_UINT;
   depthBufferDesc.SampleDesc.Count = 1;
   depthBufferDesc.SampleDesc.Quality = 0;
   depthBufferDesc.Usage = D3D11_USAGE_DEFAULT;
   depthBufferDesc.BindFlags = D3D11_BIND_DEPTH_STENCIL;
   depthBufferDesc.CPUAccessFlags = 0;
   depthBufferDesc.MiscFlags = 0;

   // Create the texture for the depth buffer using the filled out description.
   hr = dev->CreateTexture2D(&depthBufferDesc, NULL, &depthStencilBuffer);
   if(FAILED(hr))
   {
      MessageBox(NULL, L"CreadeTexture2D (depthstencilbuffer) failed", NULL, MB_OK);
   }
   hr = dev->CreateDepthStencilView(depthStencilBuffer, NULL, &depthStencilView);
   if(FAILED(hr))
   {
      MessageBox(NULL, L"CreateDepthStencilView (depthstencilbuffer) failed", NULL, MB_OK);
   }
 
   //Set our Render Target
   devcon->OMSetRenderTargets( 1, &backbuffer, depthStencilView );
 

   // Set the viewport
   D3D11_VIEWPORT viewport;
   ZeroMemory(&viewport, sizeof(D3D11_VIEWPORT));
 
   viewport.TopLeftX = 0;
   viewport.TopLeftY = 0;
   viewport.Width = SCREEN_WIDTH;
   viewport.Height = SCREEN_HEIGHT;
 
   devcon->RSSetViewports(1, &viewport);
 
 
   InitPipeline();
   InitGraphics();

}
 

I rly hope you can help me, since i rly start getting depressed over this.

Sorry for my bad english, not my mother language.

I tryed your zero-pointer advice, but backbuffer isnt set to NULL after OMSetRenderTargets. I tried it anyway, but no improvement, Its still ignoring depth.

I also worked on that D3D-Debug messages, turned out i have some problems releasing all of my com-Objects. I am working on that, but i am pretty sure thats not the reason for my Problems with the depth-buffer.

I give you my render function too, maybe you can spot a mistake there. I realy tried everything, but i dont get the depthbuffer working

void RenderFrame(void)
{
   // Set the depth stencil state. 
   devcon->OMSetDepthStencilState(depthStencilState, 1);
 
   //Clear our backbuffer
   float bgColor[4] = {(1.0f, 0.0f, 0.0f, 1.0f)};
   devcon->ClearRenderTargetView(backbuffer, bgColor);
 
   //Refresh the Depth/Stencil view
   devcon->ClearDepthStencilView(depthStencilView, D3D11_CLEAR_DEPTH|D3D11_CLEAR_STENCIL, 1.0f, 0);
 
 
   // set the shader objects
   devcon->VSSetShader(pVS, 0, 0);
   devcon->PSSetShader(pPS, 0, 0);
   devcon->IASetInputLayout(pLayout);
   devcon->PSSetShaderResources( 0, 1, &TestTexture );
 
   // render terrain
   WVP = kamera.GetViewMatrix() * kamera.GetProjectionMatrix();
   cbPerObj.WorldViewProjection = XMMatrixTranspose(WVP); 
   devcon->UpdateSubresource( cbPerObjectBuffer, 0, NULL, &cbPerObj, 0, 0 );
   devcon->VSSetConstantBuffers( 0, 1, &cbPerObjectBuffer );
 
   terrain.render(devcon);
 
 
   // render cube
   WVP = CubeWorld * kamera.GetViewMatrix() * kamera.GetProjectionMatrix();
   cbPerObj.WorldViewProjection = XMMatrixTranspose(WVP); 
   devcon->UpdateSubresource( cbPerObjectBuffer, 0, NULL, &cbPerObj, 0, 0 );
   devcon->VSSetConstantBuffers( 0, 1, &cbPerObjectBuffer );
 
   UINT stride = sizeof( VERTEX );
   UINT offset = 0;
   devcon->IASetVertexBuffers( 0, 1, &pVBuffer, &stride, &offset );
   devcon->IASetIndexBuffer( squareIndexBuffer, DXGI_FORMAT_R32_UINT, 0);
   devcon->IASetPrimitiveTopology( D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST );
   devcon->DrawIndexed( 36, 0, 0 );
 
 
   swapchain->Present(0, 0);
}

My guess would be that you've not set up the depth stencil state correctly. A zero near clip plane can also mess things up.

http://msdn.microsoft.com/en-gb/library/windows/desktop/ff476506%28v=vs.85%29.aspx

http://msdn.microsoft.com/en-us/library/windows/desktop/ff476463%28v=vs.85%29.aspx

You where right, i actually forgot to set a depthStencilState at all.

Unfortunately, it doesnt solve my problem.

I added this Code to my InitD3D Function:

D3D11_DEPTH_STENCIL_DESC depthStencilDesc;
 
// Set up the description of the stencil state.
depthStencilDesc.DepthEnable = true;
depthStencilDesc.DepthWriteMask = D3D11_DEPTH_WRITE_MASK_ALL;
depthStencilDesc.DepthFunc = D3D11_COMPARISON_LESS;
 
depthStencilDesc.StencilEnable = true;
depthStencilDesc.StencilReadMask = 0xFF;
depthStencilDesc.StencilWriteMask = 0xFF;
 
// Stencil operations if pixel is front-facing.
depthStencilDesc.FrontFace.StencilFailOp = D3D11_STENCIL_OP_KEEP;
depthStencilDesc.FrontFace.StencilDepthFailOp = D3D11_STENCIL_OP_INCR;
depthStencilDesc.FrontFace.StencilPassOp = D3D11_STENCIL_OP_KEEP;
depthStencilDesc.FrontFace.StencilFunc = D3D11_COMPARISON_ALWAYS;
 
// Stencil operations if pixel is back-facing.
depthStencilDesc.BackFace.StencilFailOp = D3D11_STENCIL_OP_KEEP;
depthStencilDesc.BackFace.StencilDepthFailOp = D3D11_STENCIL_OP_DECR;
depthStencilDesc.BackFace.StencilPassOp = D3D11_STENCIL_OP_KEEP;
depthStencilDesc.BackFace.StencilFunc = D3D11_COMPARISON_ALWAYS;
 
// Create the depth stencil state.
hr = dev->CreateDepthStencilState(&depthStencilDesc, &depthStencilState);
if(FAILED(hr))
{
   MessageBox(NULL, L"CreateDepthStencilState (depthstencilbuffer) failed", NULL, MB_OK);
}
// Set the depth stencil state.
devcon->OMSetDepthStencilState(depthStencilState, 1);

nothing changed. I tried a bit around and noticed something interesting:

If i change depthStencilDesc.DepthFunc from D3D11_COMPARISON_LESS to D3D11_COMPARISON_GREATER, nothing is drawn at all. If i change it to D3D11_COMPARISON_ALWAYS, it seems like early drawn faces stay in front of later drawn surfaces.

Changing this depthStancilState DOES have an effect! But unfortunately, depth still doesnt work like intended.

Edit:

One thing just came to my mind: maybe its terrible stupid but i dont care about depth in my shaders!

Maybe thats the Problem? Do i have to handle this myself? Maybe inside of the Pixelshader?

I haven't a clue if it matters, but try setting StencilEnable = false. Or, do you enable stenciling for a reason?

No, i just copied that from an example.
I just disabled Stencil - nothing changed.

I rly start to hate this shit. Already wasted over 20 Hours.

typedef struct D3D11_VIEWPORT {
FLOAT TopLeftX;
FLOAT TopLeftY;
FLOAT Width;
FLOAT Height;
FLOAT MinDepth;
FLOAT MaxDepth;
} D3D11_VIEWPORT;

Have you initialized your viewport correctly? seems to me that you don't set mindepth and maxdepth values - probably they contain some garbage.

Set min to 0.0f and max to 1.0f.

Cheers!

I would kiss you guys if i could, you where right!

I added MinDepth and MaxDepth to the D3D11_VIEWPORT struct, everything works like intended now .

TY! To everyone who wasted his time on a newbie like me :)