D3D11 not drawing

499

Author

February 08, 2012 02:20 AM

I am trying to draw 2 white triangles to the screen. The only thing that shows up every frame is a solid color (which is the color I clear the screen to). Using PIX I am able to clearly see that the triangles are going through the vertex shader. I can not figure out why they wont show up when I call Present(). Any help is greatly appreciated.

d3d initiate code



CString CRender::Initiate(void)

{

CString   retval;

HRESULT   hr;

DXGI_ADAPTER_DESC Desc;



hr = CreateDXGIFactory(__uuidof(IDXGIFactory), (void**)(&m_pFactory));

if(FAILED(hr))

{

  Shutdown();

  return CShared::m_pError->PushError(CString("[CRender::Initiate::CreateDXGIFactory] ") + ConvertDXError(hr), ET_Error);

}

if(m_pFactory->EnumAdapters(0, &m_pAdapter) == DXGI_ERROR_NOT_FOUND)

{

  Shutdown();

  return CShared::m_pError->PushError("[CRender::Initiate::m_pFactory->EnumAdapters] DXGI_ERROR_NOT_FOUND", ET_Error);

}

hr = m_pAdapter->GetDesc(&Desc);

if(FAILED(hr))

{

  Shutdown();

  return CShared::m_pError->PushError(CString("[CRender::Initiate::m_pAdapter->GetDesc] ") + ConvertDXError(hr), ET_Error);

}

// TODO: this is adding a space at the end... it has something to do with wchar_t stuff

CShared::m_pLog->Print(CString::Format(L"%s", Desc.Description));

CShared::m_pLog->Print(CString::Format("\n  Dedicated video memory: %0.2f MB\n  Dedicated system memory: %0.2f MB\n  Shared system memory: %0.2f MB\n",

  (float)Desc.DedicatedVideoMemory / (1024 * 1024), (float)Desc.DedicatedSystemMemory / (1024 * 1024), (float)Desc.SharedSystemMemory / (1024 * 1024)));

// TODO: get outputs, display modes, refresh rates, etc

// TODO: check to make sure requirements are met

// create window

m_pWindow = new CWindow();

assert(m_pWindow != 0);

if((m_cvarFullscreen.GetValue()).bVal)

  retval = m_pWindow->Create(WINDOW_TITLE, -1, -1);

else

  retval = m_pWindow->Create(WINDOW_TITLE, m_cvarResolutionWidth.GetValue(), m_cvarResolutionHeight.GetValue());

if(retval != "OK")

{

  Shutdown();

  return CShared::m_pError->PushError(CString("[CRender::Initiate::m_pWindow->Create] ") + retval, ET_Error);

}

// TODO: if fullscreen window size does not match cvars, change cvars to match it here

D3D_FEATURE_LEVEL featurelevels[] =

{

  D3D_FEATURE_LEVEL_11_0,

  D3D_FEATURE_LEVEL_10_1,

  D3D_FEATURE_LEVEL_10_0,

};

D3D_FEATURE_LEVEL featurelevelcreated;

UINT flags = 0;

#ifdef _DEBUG

flags |= D3D11_CREATE_DEVICE_DEBUG;

CShared::m_pLog->Print("D3D11_CREATE_DEVICE_DEBUG\n");

#endif

DXGI_SWAP_CHAIN_DESC scd;

memset(&scd, 0, sizeof(DXGI_SWAP_CHAIN_DESC));

scd.BufferCount	   = 1;

scd.BufferDesc.Width	 = (long)m_cvarResolutionWidth.GetValue();

scd.BufferDesc.Height	 = (long)m_cvarResolutionHeight.GetValue();

scd.BufferDesc.Format	 = DXGI_FORMAT_R8G8B8A8_UNORM;

scd.BufferDesc.RefreshRate.Numerator = 60;

scd.BufferDesc.RefreshRate.Denominator = 1;

scd.BufferUsage	   = DXGI_USAGE_RENDER_TARGET_OUTPUT;

scd.OutputWindow	  = (*m_pWindow);

scd.SampleDesc.Count	 = 1;

scd.SampleDesc.Quality	 = 0;

scd.Windowed	   = TRUE; // always true since fullscreen mode is just a window covering the entire screen

hr = D3D11CreateDeviceAndSwapChain(m_pAdapter,

			D3D_DRIVER_TYPE_UNKNOWN,

			NULL,

			flags,

			featurelevels,

			sizeof(featurelevels) / sizeof(featurelevels[0]),

			D3D11_SDK_VERSION,

			&scd,

			&m_pSwapChain,

			&m_pDevice,

			&featurelevelcreated,

			&m_pImmediateContext);

if(FAILED(hr))

{

  Shutdown();

  return CShared::m_pError->PushError(CString("[CRender::Initiate::D3D11CreateDevice] ") + ConvertDXError(hr), ET_Error);

}

// check which version was created

switch(featurelevelcreated)

{

case D3D_FEATURE_LEVEL_11_0:

  CShared::m_pLog->Print("D3D_FEATURE_LEVEL_11_0\n");

  break;

case D3D_FEATURE_LEVEL_10_1:

  CShared::m_pLog->Print("D3D_FEATURE_LEVEL_10_1\n");

  break;

case D3D_FEATURE_LEVEL_10_0:

  CShared::m_pLog->Print("D3D_FEATURE_LEVEL_10_0\n");

  break;

default: // unsupported version created

  // TODO: quit normally but continue if the m_cvar is set to ignore this

  break;

}

ID3D11Texture2D *pBuffer = 0;

hr = m_pSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (void**)&pBuffer);

if(FAILED(hr))

{

  Shutdown();

  return CShared::m_pError->PushError(CString("[CRender::Initiate::m_pSwapChain->GetBuffer] ") + ConvertDXError(hr), ET_Error);

}

hr = m_pDevice->CreateRenderTargetView(pBuffer, NULL, &m_pRenderTargetView);

if(FAILED(hr))

{

  Shutdown();

  return CShared::m_pError->PushError(CString("[CRender::Initiate::m_pDevice->CreateRenderTargetView] ") + ConvertDXError(hr), ET_Error);

}

pBuffer->Release();

m_pImmediateContext->OMSetRenderTargets(1, &m_pRenderTargetView, NULL);

	D3D11_VIEWPORT vp;

	vp.Width = (FLOAT)m_cvarResolutionWidth.GetValue();

	vp.Height = (FLOAT)m_cvarResolutionHeight.GetValue();

	vp.MinDepth = 0.0f;

	vp.MaxDepth = 1.0f;

	vp.TopLeftX = 0;

	vp.TopLeftY = 0;

	m_pImmediateContext->RSSetViewports(1, &vp);

// create the console's vertex buffer

CVector3D verts[] = {

  CVector3D(-1.0f, 0.0f, 0.0f), // bottom left

  CVector3D(-1.0f, 1.0f, 0.0f), // top left

  CVector3D(1.0f, 0.0f, 0.0f), // bottom right

  CVector3D(1.0f, 1.0f, 0.0f), // top right

};

D3D11_BUFFER_DESC bd;

memset(&bd, 0, sizeof(bd));

bd.Usage = D3D11_USAGE_DEFAULT;

bd.BindFlags = D3D11_BIND_VERTEX_BUFFER;

bd.ByteWidth = sizeof(CVector3D) * 4;

D3D11_SUBRESOURCE_DATA sd;

memset(&sd, 0, sizeof(sd));

sd.pSysMem = verts;

hr = m_pDevice->CreateBuffer(&bd, &sd, &m_pvbConsole);

if(FAILED(hr))

{

  Shutdown();

  return CShared::m_pError->PushError(CString("[CRender::Initiate::m_pDevice->CreateBuffer] ") + ConvertDXError(hr), ET_Error);

}

// set up the console's vertex shader

D3D11_INPUT_ELEMENT_DESC layout[] =

{

  { "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },

};

ID3DBlob *pShader = 0;

ID3DBlob *pErrorMsgs = 0;

unsigned int uiFlags = D3DCOMPILE_ENABLE_STRICTNESS, uiLayoutSize = sizeof(layout) / sizeof(layout[0]);

#ifdef _DEBUG

uiFlags |= D3DCOMPILE_DEBUG;

#endif

hr = D3DX11CompileFromFile("console.fx", NULL, NULL, "VS", "vs_4_0", uiFlags, 0, NULL, &pShader, &pErrorMsgs, NULL);

if(pErrorMsgs)

{

  CShared::m_pLog->Print(CString(static_cast<char*>(pErrorMsgs->GetBufferPointer())) + "\n");

  pErrorMsgs->Release();

  pErrorMsgs = 0;

}

if(FAILED(hr))

{

  Shutdown();

  return CShared::m_pError->PushError(CString("[CRender::Initiate::D3DX11CompileFromFile] ") + ConvertDXError(hr), ET_Error);

}

hr = m_pDevice->CreateVertexShader(pShader->GetBufferPointer(), pShader->GetBufferSize(), NULL, &m_pvsConsole);

if(FAILED(hr))

{

  Shutdown();

  return CShared::m_pError->PushError(CString("[CRender::Initiate::m_pDevice->CreateVertexShader] ") + ConvertDXError(hr), ET_Error);

}

hr = m_pDevice->CreateInputLayout(layout, uiLayoutSize, pShader->GetBufferPointer(), pShader->GetBufferSize(), &m_pilConsole);

pShader->Release();

pShader = 0;

if(FAILED(hr))

{

  Shutdown();

  return CShared::m_pError->PushError(CString("[CRender::Initiate::m_pDevice->CreateInputLayout] ") + ConvertDXError(hr), ET_Error);

}

// set up the pixel shader for the console

hr = D3DX11CompileFromFile("console.fx", NULL, NULL, "PS", "ps_4_0", uiFlags, 0, NULL, &pShader, &pErrorMsgs, NULL);

if(pErrorMsgs)

{

  CShared::m_pLog->Print(CString(static_cast<char*>(pErrorMsgs->GetBufferPointer())) + "\n");

  pErrorMsgs->Release();

  pErrorMsgs = 0;

}

if(FAILED(hr))

{

  Shutdown();

  return CShared::m_pError->PushError(CString("[CRender::Initiate::D3DX11CompileFromFile] ") + ConvertDXError(hr), ET_Error);

}

hr = m_pDevice->CreatePixelShader(pShader->GetBufferPointer(), pShader->GetBufferSize(), NULL, &m_ppsConsole);

if(FAILED(hr))

{

  Shutdown();

  return CShared::m_pError->PushError(CString("[CRender::Initiate::m_pDevice->CreatePixelShader] ") + ConvertDXError(hr), ET_Error);

}

pShader->Release();

pShader = 0;

return "OK";

}

drawing code



	float color[4] = { 0.0f, 0.0f, 0.0f, 1.0f };

m_pImmediateContext->ClearRenderTargetView(m_pRenderTargetView, color);

unsigned int uiStride = sizeof(CVector3D);

unsigned int uiOffset = 0;

m_pImmediateContext->IASetInputLayout(m_pilConsole);

m_pImmediateContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);

m_pImmediateContext->IASetVertexBuffers(0, 1, &m_pvbConsole, &uiStride, &uiOffset);

m_pImmediateContext->VSSetShader(m_pvsConsole, NULL, 0);

m_pImmediateContext->PSSetShader(m_ppsConsole, NULL, 0);

m_pImmediateContext->Draw(4, 0);

m_pSwapChain->Present((m_cvarVSync.GetValue()).bVal ? 1 : 0, 0);

shader code



//--------------------------------------------------------------------------------------

// Vertex Shader

//--------------------------------------------------------------------------------------

float4 VS( float4 Pos : POSITION ) : SV_POSITION

{

	return Pos;

}



//--------------------------------------------------------------------------------------

// Pixel Shader

//--------------------------------------------------------------------------------------

float4 PS( float4 Pos : SV_POSITION ) : SV_Target

{

	return float4(1.0f, 0.0f, 0.0f, 1.0f);

}

Aqua Costa

3,705

February 08, 2012 02:32 AM

In PIX, when you select the draw call do you see the quad in the Viewport window?

alexisgreene

499

Author

February 08, 2012 02:39 AM

yes

Sepiantum

102

February 08, 2012 05:07 AM

Post your vertex sequence. If your vertices are in the wrong order (i.e. CCW instead of CW), D3D11 will think that the front of the polygon is not facing the camera and will not draw it.

For example (this does not draw anything):

//Start adding data

this->pVertexBuffer->AddData(new SimpleVertex_t(0.0f, 0.5f, 0.0f, D3DXCOLOR(1.0f, 0.0f, 0.0f, 1.0f)));

this->pVertexBuffer->AddData(new SimpleVertex_t(-0.45f, -0.5f, 0.0f, D3DXCOLOR(0.0f, 0.0f, 1.0f, 1.0f)));

this->pVertexBuffer->AddData(new SimpleVertex_t(0.45f, -0.5f, 0.0f, D3DXCOLOR(0.0f, 1.0f, 0.0f, 1.0f)));

While this does draw a triangle:

//Start adding data

this->pVertexBuffer->AddData(new SimpleVertex_t(0.0f, 0.5f, 0.0f, D3DXCOLOR(1.0f, 0.0f, 0.0f, 1.0f)));

this->pVertexBuffer->AddData(new SimpleVertex_t(0.45f, -0.5f, 0.0f, D3DXCOLOR(0.0f, 1.0f, 0.0f, 1.0f)));

this->pVertexBuffer->AddData(new SimpleVertex_t(-0.45f, -0.5f, 0.0f, D3DXCOLOR(0.0f, 0.0f, 1.0f, 1.0f)));