（求高手幫忙，謝謝）
我用Direct3D畫出高程的影像，但是影像在旋轉到一定角度的時候，某些影像會被背后的影像覆寫。如下圖：
正常顯示：
部分影像被覆寫：
代碼：
/--------------------------------------------------------------------------------------
// Global Variables
//--------------------------------------------------------------------------------------
HINSTANCE g_hInst = nullptr;
HWND g_hWnd = nullptr;
D3D_DRIVER_TYPE g_driverType = D3D_DRIVER_TYPE_NULL;
D3D_FEATURE_LEVEL g_featureLevel = D3D_FEATURE_LEVEL_11_0;
ID3D11Device* g_pd3dDevice = nullptr;
ID3D11Device1* g_pd3dDevice1 = nullptr;
ID3D11DeviceContext* g_pImmediateContext = nullptr;
ID3D11DeviceContext1* g_pImmediateContext1 = nullptr;
IDXGISwapChain* g_pSwapChain = nullptr;
IDXGISwapChain1* g_pSwapChain1 = nullptr;
ID3D11RenderTargetView* g_pRenderTargetView = nullptr;
ID3D11Texture2D* g_pDepthStencil = nullptr;
ID3D11DepthStencilView* g_pDepthStencilView = nullptr;
ID3D11VertexShader* g_pVertexShader = nullptr;
ID3D11PixelShader* g_pPixelShader = nullptr;
ID3D11PixelShader* g_pPixelShaderSolid = nullptr;
ID3D11InputLayout* g_pVertexLayout = nullptr;
ID3D11Buffer* g_pTriangleVertexBuffer = nullptr;
ID3D11Buffer* g_pTriangleIndexBuffer = nullptr;
ID3D11Buffer* g_pTriangleIndexRvsBuffer = nullptr;
ID3D11Buffer* g_pLineVertexBuffer = nullptr;
ID3D11Buffer* g_pLineIndexBuffer = nullptr;
ID3D11Buffer* g_pConstantBuffer = nullptr;
XMMATRIX g_World;
XMMATRIX g_View;
XMMATRIX g_Projection;
ID3D11RasterizerState* g_pRasterizerState;
ID3D11RasterizerState* g_pRasterizerStateNet;
ID3D11ShaderResourceView* g_pTextureRV = nullptr;
ID3D11SamplerState* g_pSamplerLinear = nullptr;
ID3D11Buffer* g_pVertexBuffer = nullptr;
ID3D11Buffer* g_pIndexBuffer = nullptr;
HRESULT Grid3DView::InitDevice()
{
InitGridData();
//RefreshData();
HRESULT hr = S_OK;
RECT rc;
GetClientRect(g_hWnd, &rc);
UINT width = rc.right - rc.left;
UINT height = rc.bottom - rc.top;
UINT createDeviceFlags = 0;
#ifdef _DEBUG
createDeviceFlags |= D3D11_CREATE_DEVICE_DEBUG;
#endif
D3D_DRIVER_TYPE driverTypes[] =
{
D3D_DRIVER_TYPE_HARDWARE,
D3D_DRIVER_TYPE_WARP,
D3D_DRIVER_TYPE_REFERENCE,
};
UINT numDriverTypes = ARRAYSIZE(driverTypes);
D3D_FEATURE_LEVEL featureLevels[] =
{
D3D_FEATURE_LEVEL_11_1,
D3D_FEATURE_LEVEL_11_0,
D3D_FEATURE_LEVEL_10_1,
D3D_FEATURE_LEVEL_10_0,
};
UINT numFeatureLevels = ARRAYSIZE(featureLevels);
for (UINT driverTypeIndex = 0; driverTypeIndex < numDriverTypes; driverTypeIndex++)
{
g_driverType = driverTypes[driverTypeIndex];
hr = D3D11CreateDevice(nullptr, g_driverType, nullptr, createDeviceFlags, featureLevels, numFeatureLevels,
D3D11_SDK_VERSION, &g_pd3dDevice, &g_featureLevel, &g_pImmediateContext);
if (hr == E_INVALIDARG)
{
// DirectX 11.0 platforms will not recognize D3D_FEATURE_LEVEL_11_1 so we need to retry without it
hr = D3D11CreateDevice(nullptr, g_driverType, nullptr, createDeviceFlags, &featureLevels[1], numFeatureLevels - 1,
D3D11_SDK_VERSION, &g_pd3dDevice, &g_featureLevel, &g_pImmediateContext);
}
if (SUCCEEDED(hr))
break;
}
if (FAILED(hr))
return hr;
// Obtain DXGI factory from device (since we used nullptr for pAdapter above)
IDXGIFactory1* dxgiFactory = nullptr;
{
IDXGIDevice* dxgiDevice = nullptr;
hr = g_pd3dDevice->QueryInterface(__uuidof(IDXGIDevice), reinterpret_cast<void**>(&dxgiDevice));
if (SUCCEEDED(hr))
{
IDXGIAdapter* adapter = nullptr;
hr = dxgiDevice->GetAdapter(&adapter);
if (SUCCEEDED(hr))
{
hr = adapter->GetParent(__uuidof(IDXGIFactory1), reinterpret_cast<void**>(&dxgiFactory));
adapter->Release();
}
dxgiDevice->Release();
}
}
if (FAILED(hr))
return hr;
// Create swap chain
IDXGIFactory2* dxgiFactory2 = nullptr;
hr = dxgiFactory->QueryInterface(__uuidof(IDXGIFactory2), reinterpret_cast<void**>(&dxgiFactory2));
if (dxgiFactory2)
{
TRACE(_T("DirectX 11.1 or later\n"));
hr = g_pd3dDevice->QueryInterface(__uuidof(ID3D11Device1), reinterpret_cast<void**>(&g_pd3dDevice1));
if (SUCCEEDED(hr))
{
(void)g_pImmediateContext->QueryInterface(__uuidof(ID3D11DeviceContext1), reinterpret_cast<void**>(&g_pImmediateContext1));
}
DXGI_SWAP_CHAIN_DESC1 sd;
ZeroMemory(&sd, sizeof(sd));
sd.Width = width;
sd.Height = height;
sd.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
sd.SampleDesc.Count = 1;
sd.SampleDesc.Quality = 0;
sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
sd.BufferCount = 1;
hr = dxgiFactory2->CreateSwapChainForHwnd(g_pd3dDevice, g_hWnd, &sd, nullptr, nullptr, &g_pSwapChain1);
if (SUCCEEDED(hr))
{
hr = g_pSwapChain1->QueryInterface(__uuidof(IDXGISwapChain), reinterpret_cast<void**>(&g_pSwapChain));
}
dxgiFactory2->Release();
}
else
{
TRACE(_T("DirectX 11.0 systems\n"));
DXGI_SWAP_CHAIN_DESC sd;
ZeroMemory(&sd, sizeof(sd));
sd.BufferCount = 1;
sd.BufferDesc.Width = width;
sd.BufferDesc.Height = height;
sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
sd.BufferDesc.RefreshRate.Numerator = 60;
sd.BufferDesc.RefreshRate.Denominator = 1;
sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
sd.OutputWindow = g_hWnd;
sd.SampleDesc.Count = 1;
sd.SampleDesc.Quality = 0;
sd.Windowed = TRUE;
hr = dxgiFactory->CreateSwapChain(g_pd3dDevice, &sd, &g_pSwapChain);
}
// Note this tutorial doesn't handle full-screen swapchains so we block the ALT+ENTER shortcut
dxgiFactory->MakeWindowAssociation(g_hWnd, DXGI_MWA_NO_ALT_ENTER);
dxgiFactory->Release();
if (FAILED(hr))
return hr;
// Create a render target view
ID3D11Texture2D* pBackBuffer = nullptr;
hr = g_pSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), reinterpret_cast<void**>(&pBackBuffer));
if (FAILED(hr))
return hr;
hr = g_pd3dDevice->CreateRenderTargetView(pBackBuffer, nullptr, &g_pRenderTargetView);
pBackBuffer->Release();
if (FAILED(hr))
return hr;
// Create depth stencil texture
D3D11_TEXTURE2D_DESC descDepth;
ZeroMemory(&descDepth, sizeof(descDepth));
descDepth.Width = width;
descDepth.Height = height;
descDepth.MipLevels = 1;
descDepth.ArraySize = 1;
descDepth.Format = DXGI_FORMAT_D24_UNORM_S8_UINT;
descDepth.SampleDesc.Count = 1;
descDepth.SampleDesc.Quality = 0;
descDepth.Usage = D3D11_USAGE_DEFAULT;
descDepth.BindFlags = D3D11_BIND_DEPTH_STENCIL;
descDepth.CPUAccessFlags = 0;
descDepth.MiscFlags = 0;
hr = g_pd3dDevice->CreateTexture2D(&descDepth, nullptr, &g_pDepthStencil);
if (FAILED(hr))
return hr;
// Create the depth stencil view
D3D11_DEPTH_STENCIL_VIEW_DESC descDSV;
ZeroMemory(&descDSV, sizeof(descDSV));
descDSV.Format = descDepth.Format;
descDSV.ViewDimension = D3D11_DSV_DIMENSION_TEXTURE2D;
descDSV.Texture2D.MipSlice = 0;
hr = g_pd3dDevice->CreateDepthStencilView(g_pDepthStencil, &descDSV, &g_pDepthStencilView);
if (FAILED(hr))
return hr;
g_pImmediateContext->OMSetRenderTargets(1, &g_pRenderTargetView, nullptr);
// Setup the viewport
D3D11_VIEWPORT vp;
vp.Width = (FLOAT)width;
vp.Height = (FLOAT)height;
vp.MinDepth = 0.0f;
vp.MaxDepth = 1.0f;
vp.TopLeftX = 0;
vp.TopLeftY = 0;
g_pImmediateContext->RSSetViewports(1, &vp);
// Compile the vertex shader
ID3DBlob* pVSBlob = nullptr;
hr = CompileShaderFromFile(SHADER_FILENAME, "VS", "vs_4_0", &pVSBlob);
if (FAILED(hr))
{
MessageBox(nullptr,
L"The FX file cannot be compiled. Please run this executable from the directory that contains the FX file.", L"Error", MB_OK);
return hr;
}
// Create the vertex shader
hr = g_pd3dDevice->CreateVertexShader(pVSBlob->GetBufferPointer(), pVSBlob->GetBufferSize(), nullptr, &g_pVertexShader);
if (FAILED(hr))
{
pVSBlob->Release();
return hr;
}
// Define the input layout
D3D11_INPUT_ELEMENT_DESC layout[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, 12, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "NORMAL", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 28, D3D11_INPUT_PER_VERTEX_DATA, 0 },
};
UINT numElements = ARRAYSIZE(layout);
// Create the input layout
hr = g_pd3dDevice->CreateInputLayout(layout, numElements, pVSBlob->GetBufferPointer(),
pVSBlob->GetBufferSize(), &g_pVertexLayout);
pVSBlob->Release();
if (FAILED(hr))
return hr;
// Set the input layout
g_pImmediateContext->IASetInputLayout(g_pVertexLayout);
// Compile the pixel shader
ID3DBlob* pPSBlob = nullptr;
hr = CompileShaderFromFile(SHADER_FILENAME, "PS", "ps_4_0", &pPSBlob);
if (FAILED(hr))
{
MessageBox(nullptr,
L"The FX file cannot be compiled. Please run this executable from the directory that contains the FX file.", L"Error", MB_OK);
return hr;
}
// Create the pixel shader
hr = g_pd3dDevice->CreatePixelShader(pPSBlob->GetBufferPointer(), pPSBlob->GetBufferSize(), nullptr, &g_pPixelShader);
pPSBlob->Release();
if (FAILED(hr))
return hr;
// Compile the pixel shader
pPSBlob = nullptr;
hr = CompileShaderFromFile(SHADER_FILENAME, "PSSolid", "ps_4_0", &pPSBlob);
if (FAILED(hr))
{
MessageBox(nullptr,
L"The FX file cannot be compiled. Please run this executable from the directory that contains the FX file.", L"Error", MB_OK);
return hr;
}
// Create the pixel shader
hr = g_pd3dDevice->CreatePixelShader(pPSBlob->GetBufferPointer(), pPSBlob->GetBufferSize(), nullptr, &g_pPixelShaderSolid);
pPSBlob->Release();
if (FAILED(hr))
return hr;
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D3D11_BUFFER_DESC bd;
D3D11_SUBRESOURCE_DATA InitData;
ZeroMemory(&bd, sizeof(bd));
ZeroMemory(&InitData, sizeof(InitData));
{
bd.Usage = D3D11_USAGE_DEFAULT;
bd.ByteWidth = sizeof(SimpleVertex) * MAX_LINE_IDXCNT;
bd.BindFlags = D3D11_BIND_VERTEX_BUFFER;
bd.CPUAccessFlags = 0;
InitData.pSysMem = m_LineVertices;
hr = g_pd3dDevice->CreateBuffer(&bd, &InitData, &g_pLineVertexBuffer);
if (FAILED(hr))
return hr;
bd.Usage = D3D11_USAGE_DEFAULT;
bd.ByteWidth = sizeof(WORD) * MAX_LINE_IDXCNT;
bd.BindFlags = D3D11_BIND_INDEX_BUFFER;
bd.CPUAccessFlags = 0;
InitData.pSysMem = m_pLineIndicesList;
hr = g_pd3dDevice->CreateBuffer(&bd, &InitData, &g_pLineIndexBuffer);
if (FAILED(hr))
return hr;
}
{
bd.Usage = D3D11_USAGE_DEFAULT;
bd.ByteWidth = sizeof(SimpleVertex) * VIEW_GRID_PINTS_DEPTH * VIEW_GRID_PINTS_DEPTH;
bd.BindFlags = D3D11_BIND_VERTEX_BUFFER;
bd.CPUAccessFlags = 0;
InitData.pSysMem = m_vertices_grid;
hr = g_pd3dDevice->CreateBuffer(&bd, &InitData, &g_pTriangleVertexBuffer);
if (FAILED(hr))
return hr;
bd.Usage = D3D11_USAGE_DEFAULT;
bd.ByteWidth = VIEW_BYTES_ANGLE_VETEXIDXBUF;
bd.BindFlags = D3D11_BIND_INDEX_BUFFER;
bd.CPUAccessFlags = 0;
InitData.pSysMem = m_pTriangleIndicesList;
hr = g_pd3dDevice->CreateBuffer(&bd, &InitData, &g_pTriangleIndexBuffer);
if (FAILED(hr))
return hr;
}
{
bd.Usage = D3D11_USAGE_DEFAULT;
bd.ByteWidth = VIEW_BYTES_ANGLE_VETEXIDXBUF;
bd.BindFlags = D3D11_BIND_INDEX_BUFFER;
bd.CPUAccessFlags = 0;
InitData.pSysMem = m_pTriangleIndicesRvsList;
hr = g_pd3dDevice->CreateBuffer(&bd, &InitData, &g_pTriangleIndexRvsBuffer);
if (FAILED(hr))
return hr;
}
{
SimpleVertex vertices[] =
{
{ XMFLOAT3(-1.0f, 1.0f, -1.0f), XMFLOAT4(0.0f, 0.0f, 1.0f, 1.0f) },
{ XMFLOAT3(1.0f, 1.0f, -1.0f), XMFLOAT4(0.0f, 1.0f, 0.0f, 1.0f) },
{ XMFLOAT3(1.0f, 1.0f, 1.0f), XMFLOAT4(0.0f, 1.0f, 1.0f, 1.0f) },
{ XMFLOAT3(-1.0f, 1.0f, 1.0f), XMFLOAT4(1.0f, 0.0f, 0.0f, 1.0f) },
{ XMFLOAT3(-1.0f, -1.0f, -1.0f), XMFLOAT4(1.0f, 0.0f, 1.0f, 1.0f) },
{ XMFLOAT3(1.0f, -1.0f, -1.0f), XMFLOAT4(1.0f, 1.0f, 0.0f, 1.0f) },
{ XMFLOAT3(1.0f, -1.0f, 1.0f), XMFLOAT4(1.0f, 1.0f, 1.0f, 1.0f) },
{ XMFLOAT3(-1.0f, -1.0f, 1.0f), XMFLOAT4(0.0f, 0.0f, 0.0f, 1.0f) },
};
D3D11_BUFFER_DESC bd;
ZeroMemory(&bd, sizeof(bd));
bd.Usage = D3D11_USAGE_DEFAULT;
bd.ByteWidth = sizeof(SimpleVertex) * 8;
bd.BindFlags = D3D11_BIND_VERTEX_BUFFER;
bd.CPUAccessFlags = 0;
D3D11_SUBRESOURCE_DATA InitData;
ZeroMemory(&InitData, sizeof(InitData));
InitData.pSysMem = vertices;
hr = g_pd3dDevice->CreateBuffer(&bd, &InitData, &g_pVertexBuffer);
if (FAILED(hr))
return hr;
// Set vertex buffer
UINT stride = sizeof(SimpleVertex);
UINT offset = 0;
//g_pImmediateContext->IASetVertexBuffers(0, 1, &g_pVertexBuffer, &stride, &offset);
// Create index buffer
WORD indices[] =
{
3, 1, 0,
2, 1, 3,
0, 5, 4,
1, 5, 0,
3, 4, 7,
0, 4, 3,
1, 6, 5,
2, 6, 1,
2, 7, 6,
3, 7, 2,
6, 4, 5,
7, 4, 6,
};
bd.Usage = D3D11_USAGE_DEFAULT;
bd.ByteWidth = sizeof(WORD) * 36; // 36 vertices needed for 12 triangles in a triangle list
bd.BindFlags = D3D11_BIND_INDEX_BUFFER;
bd.CPUAccessFlags = 0;
InitData.pSysMem = indices;
hr = g_pd3dDevice->CreateBuffer(&bd, &InitData, &g_pIndexBuffer);
if (FAILED(hr))
return hr;
}
// Set primitive topology
g_pImmediateContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
// Create the constant buffer
bd.Usage = D3D11_USAGE_DEFAULT;
bd.ByteWidth = sizeof(ConstantBuffer);
bd.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
bd.CPUAccessFlags = 0;
hr = g_pd3dDevice->CreateBuffer(&bd, nullptr, &g_pConstantBuffer);
if (FAILED(hr))
return hr;
// Create the sample state
D3D11_SAMPLER_DESC sampDesc;
ZeroMemory(&sampDesc, sizeof(sampDesc));
sampDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
sampDesc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
sampDesc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
sampDesc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
sampDesc.ComparisonFunc = D3D11_COMPARISON_NEVER;
sampDesc.MinLOD = 0;
sampDesc.MaxLOD = D3D11_FLOAT32_MAX;
hr = g_pd3dDevice->CreateSamplerState(&sampDesc, &g_pSamplerLinear);
if (FAILED(hr))
return hr;
// Initialize the world matrix
g_World = XMMatrixIdentity();
// Initialize the view matrix
XMVECTOR Eye = XMVectorSet(0.0f, 3.5f, -1.2f, 0.0f);
XMVECTOR At = XMVectorSet(0.0f, 0.0f, -0.0f, 0.0f);
XMVECTOR Up = XMVectorSet(0.0f, 2.0f, 0.0f, 0.0f);
g_View = XMMatrixLookAtLH(Eye, At, Up);
// Initialize the projection matrix
g_Projection = XMMatrixPerspectiveFovLH(XM_PIDIV4 * 1.5, width / (FLOAT)height, 0.0000001f, 500.0f);
if (true)
{
D3D11_RASTERIZER_DESC rsDesc;
ZeroMemory(&rsDesc, sizeof(D3D11_RASTERIZER_DESC));
rsDesc.FillMode = D3D11_FILL_SOLID;
rsDesc.CullMode = D3D11_CULL_BACK;
rsDesc.FrontCounterClockwise = false;
//rsDesc.DepthBiasClamp
rsDesc.SlopeScaledDepthBias = false;
rsDesc.DepthClipEnable = true;
rsDesc.ScissorEnable = false;
rsDesc.MultisampleEnable = true;
rsDesc.AntialiasedLineEnable = true;
g_pd3dDevice->CreateRasterizerState(&rsDesc, &g_pRasterizerState);
rsDesc.FillMode = D3D11_FILL_WIREFRAME;
g_pd3dDevice->CreateRasterizerState(&rsDesc, &g_pRasterizerStateNet);
g_pImmediateContext->RSSetState(g_pRasterizerState);
}
//g_pd3dDevice->SetRenderState(D3DRS_ZENABLE, D3DZB_TRUE);
return S_OK;
}
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//--------------------------------------------------------------------------------------
// Render a frame
//--------------------------------------------------------------------------------------
void Grid3DView::Render()
{
//
// Clear the back buffer
//
g_pImmediateContext->ClearRenderTargetView(g_pRenderTargetView, Colors::MidnightBlue);
g_pImmediateContext->ClearDepthStencilView(g_pDepthStencilView, D3D11_CLEAR_DEPTH, 1.0f, 0);
{
TRACE(_T("m_radRotation = #%f\n"), RAD2DEG(m_radRotation));
//m_radRotation = 90.714188;
//m_radRotation = XM_PI / 2;
g_World = XMMatrixIdentity();
g_World = g_World * XMMatrixRotationY(m_radRotation);
g_World = g_World * XMMatrixRotationX(m_radRotationX);
g_World = g_World * XMMatrixRotationZ(m_radRotationZ);
RECT rc;
GetClientRect(g_hWnd, &rc);
UINT width = rc.right - rc.left;
UINT height = rc.bottom - rc.top;
g_Projection = XMMatrixPerspectiveFovLH(XM_PIDIV4 * 1.8 / m_ZoomRatio, width / (FLOAT)height, 0.000001f, 1000.0f);
// Initialize the view matrix
XMVECTOR Eye = XMVectorSet(0.0f + m_viewMoveWidX, 1.5f, -1.2f + m_viewMoveDepZ, 0.0f);
XMVECTOR At = XMVectorSet(0.0f + m_viewMoveWidX, -0.0f, -0.0f + m_viewMoveDepZ, 0.0f);
XMVECTOR Up = XMVectorSet(0.0f, 1.0f, 0.0f, 0.0f);
//XMVECTOR Eye = XMVectorSet(0.0f, 5.0f, -10.0f, 0.0f);
//XMVECTOR At = XMVectorSet(0.0f, 2.0f, 0.0f, 0.0f);
//XMVECTOR Up = XMVectorSet(0.0f, 1.0f, 0.0f, 0.0f);
g_View = XMMatrixLookAtLH(Eye, At, Up);
// Setup our lighting parameters
XMFLOAT4 vLightSrcDir = XMFLOAT4(0.0f, 0.577f, 0.0f, 1.0f);
//XMFLOAT4 vLightSrcDir = XMFLOAT4(0.0f + m_viewMoveWidX, 1.5f, -1.2f + m_viewMoveDepZ, 1.0f);
XMFLOAT4 vLightSrcColor = XMFLOAT4(0.5f, 0.5f, 0.5f, 1.0f);
// Rotate the second light around the origin
//XMMATRIX mRotate = XMMatrixRotationY(-2.0f * m_radRotation);
//XMVECTOR vLightDir = XMLoadFloat4(&vLightSrcDir);
//vLightDir = XMVector3Transform(vLightDir, mRotate);
//XMStoreFloat4(&vLightDirs, vLightDir);
ConstantBuffer cb;
cb.mWorld = XMMatrixTranspose(g_World);
cb.mView = XMMatrixTranspose(g_View);
cb.mProjection = XMMatrixTranspose(g_Projection);
cb.vLightDir = vLightSrcDir;
cb.vLightColor = vLightSrcColor;
cb.vOutputColor = XMFLOAT4(0, 1.0f, 0, 1.0f);
g_pImmediateContext->UpdateSubresource(g_pConstantBuffer, 0, nullptr, &cb, 0, 0);
//
// Renders a triangle
//
g_pImmediateContext->VSSetShader(g_pVertexShader, nullptr, 0);
g_pImmediateContext->VSSetConstantBuffers(0, 1, &g_pConstantBuffer);
//g_pImmediateContext->PSSetShader(g_pPixelShaderSolid, nullptr, 0);
g_pImmediateContext->PSSetShader(g_pPixelShader, nullptr, 0);
g_pImmediateContext->PSSetConstantBuffers(0, 1, &g_pConstantBuffer);
g_pImmediateContext->PSSetSamplers(0, 1, &g_pSamplerLinear);
}
if (true)
{
if (m_bNetView)
g_pImmediateContext->RSSetState(g_pRasterizerStateNet);
else
g_pImmediateContext->RSSetState(g_pRasterizerState);
}
if (true)
//if (false)
{///draw the target
ConstructViewBuf(m_maxHeight, m_bFlatView);
g_pImmediateContext->UpdateSubresource(g_pTriangleVertexBuffer, 0, nullptr, m_vertices_grid, 0, 0);
// Set vertex buffer
UINT stride = sizeof(SimpleVertex);
UINT offset = 0;
//g_pImmediateContext->PSSetShader(g_pPixelShaderSolid, nullptr, 0);
// Set vetex buffer
g_pImmediateContext->IASetVertexBuffers(0, 1, &g_pTriangleVertexBuffer, &stride, &offset);
// Set index buffer
//g_pImmediateContext->IASetIndexBuffer(g_pTriangleIndexBuffer, DXGI_FORMAT_R16_UINT, 0);
g_pImmediateContext->IASetIndexBuffer(g_pTriangleIndexRvsBuffer, DXGI_FORMAT_R16_UINT, 0);
// Set primitive topology
g_pImmediateContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
g_pImmediateContext->DrawIndexed(VIEW_ANGLE_VETEXIDX_CNT, 0, 0);
//g_pImmediateContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_16_CONTROL_POINT_PATCHLIST);
//g_pImmediateContext->Draw(VIEW_GRID_PINTS_WID * VIEW_GRID_PINTS_DEPTH, 0);
}
if (true)
//if (false)
{///draw the lines
// Set vertex buffer
UINT stride = sizeof(SimpleVertex);
UINT offset = 0;
// Set vetex buffer
g_pImmediateContext->IASetVertexBuffers(0, 1, &g_pLineVertexBuffer, &stride, &offset);
// Set index buffer
g_pImmediateContext->IASetIndexBuffer(g_pLineIndexBuffer, DXGI_FORMAT_R16_UINT, 0);
// Set primitive topology
g_pImmediateContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_LINELIST);
g_pImmediateContext->DrawIndexed(18, 0, 0);
}
if (false)
//if (true)
{///draw the cube
// Set vertex buffer
UINT stride = sizeof(SimpleVertex);
UINT offset = 0;
// Set vetex buffer
g_pImmediateContext->IASetVertexBuffers(0, 1, &g_pVertexBuffer, &stride, &offset);
// Set index buffer
g_pImmediateContext->IASetIndexBuffer(g_pIndexBuffer, DXGI_FORMAT_R16_UINT, 0);
// Set primitive topology
g_pImmediateContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
g_pImmediateContext->DrawIndexed(36, 0, 0);
}
//
// Present our back buffer to our front buffer
//
g_pSwapChain->Present(0, 0);
}
uj5u.com熱心網友回復：
要學會除錯啊，visualstudio已經附帶了dx的除錯工具了，很簡單也很強大uj5u.com熱心網友回復：
多謝回復，能看到哪個三角形具體沒有畫出來嗎？抱歉我這塊還在摸索中。謝謝。uj5u.com熱心網友回復：
可以具體到某一個點，選中某一個點后，就可以看到shader是怎么運行的。不過我只用過DX12，不知道dx11能不能這樣
uj5u.com熱心網友回復：
你沒開 Z-enable 啊，你整個程式都沒設定 Depth State，當然會這樣嘛轉載請註明出處，本文鏈接：https://www.uj5u.com/qita/47450.html
標籤：其它游戲引擎